JP2018063123A - Attached matter collecting device and attached matter analyzing system - Google Patents

Abstract

An object of the present invention is to perform a low invasion and highly efficient removal of deposits. A contact surface 12 that contacts a finger H that is an object to be inspected, an injection nozzle 13 that injects a gas A1 toward the contact surface 12 after the finger H has moved away from the contact surface 12, and an injection nozzle 13. And a recovery port 18 for recovering the injected gas. Also, it is determined whether the finger H is inserted or extracted depending on whether or not the infrared ray R provided near the insertion opening 17 is irradiated by the infrared light emitting unit 14a and received by the infrared light receiving unit 14b. The [Selection] Figure 3

Description

  The present invention relates to a technique of a deposit collection device and a deposit analysis system for collecting deposits attached to an inspection object.

  In the industrial field, the environmental field, and the like, it is becoming more important to analyze the substances attached to the inspection object. In particular, in the environmental field, in order to grasp the state of environmental pollution, there is a demand for an analyzer that measures deposits quickly, in real time, and with high sensitivity. Also, in the industrial field, there is a need for an analyzer that measures the deposit components adhering to industrial products quickly, in real time, and with high sensitivity for the purpose of production process management and quality control.

  For example, Patent Document 1 provides “A method for analyzing in real time while continuously collecting and concentrating fine particles. Gas of a detection target substance and / or fine particles adhering to the authentication target 2 are supplied from the air supply unit 5. The sample thus peeled off is sucked and concentrated by the fine particle collecting unit 10 and collected, and ions of the sample are generated by the ion source unit 21 and subjected to mass analysis by the mass analyzing unit 23. The obtained mass spectrum. By detecting the presence or absence of a mass spectrum derived from the detection target substance and displaying the result on the display unit 27, the detection target substance attached to the authentication target 2 is continuously detected in real time quickly and with low false alarms. An analysis device and an analysis method are disclosed (see summary).

  Patent Document 2 discloses that “an authentication unit that authenticates an object, an air supply unit that generates an air flow from at least two different directions with respect to the object, and gas and / or fine particles separated from the object are collected. A suction port for sucking the gas and / or fine particles separated from the target, a flow rate control unit for controlling the jet air flow of the air supply unit and the suction of the suction unit, and the sucked gas and / or A fine particle collecting unit that concentrates and collects a detection target substance contained in the fine particles, an analysis unit that analyzes the detection target substance introduced from the fine particle collection unit, and the detection from the analysis result of the analysis unit An analysis apparatus including an analysis determination control unit that determines the presence or absence of a target substance is disclosed (see summary).

  In Patent Documents 1 and 2, attempts are made to peel off deposits by air flow, whereas in the technique described in Patent Document 3, hand-held deposits are improved by blowing dry ice fine particles onto the inspection object. A collection device is disclosed. By mounting a liquefied carbon dioxide cylinder and injecting carbon dioxide gas as a high-speed gas stream, dry ice fine particles are produced by adiabatic expansion and collided with an inspection object.

International Publication No. 2012/063796 International Publication No. 2016/027320 US Pat. No. 8,353,223

  When an attempt is made to peel and collect the deposit attached to the inspection object using a gas stream, only the deposit having a small adhesion force can be peeled off. In order to improve the peeling efficiency, the velocity of the airflow is increased very much, or the solid particles are made to collide with the inspection object like sand blast or dry ice powder as in the technique described in Patent Document 3. It will be. However, these methods have a problem that the invasiveness to the inspection object is increased.

  The present invention has been made in view of such a background, and an object of the present invention is to perform low-invasion and high-efficiency exfoliation.

In order to solve the above-described problem, the present invention provides a contact portion that makes an inspection object contact, an injection portion that injects an airflow toward the contact portion after the inspection object leaves the contact portion, And a collection unit that collects the airflow ejected by the ejection unit.
Other solutions are described as appropriate in the embodiments.

  According to the present invention, it is possible to peel off deposits with low invasion and high efficiency.

It is a figure (the 1) which shows the schematic sectional drawing of the deposit collection apparatus which concerns on 1st Embodiment. It is a figure (the 2) which shows the schematic sectional drawing of the deposit | attachment collection apparatus which concerns on 1st Embodiment. It is a figure (the 3) which shows the schematic sectional drawing of the deposit | attachment collection apparatus which concerns on 1st Embodiment. It is a figure which shows the structural example of the authentication system used by 1st Embodiment. It is a figure which shows the deposit | attachment transferred to the contact surface. It is a figure which shows the time change of the signal detected with the analyzer. It is a flowchart which shows an example of the process sequence of the authentication system used by 1st Embodiment. It is a figure (the 1) which shows an example at the time of seeing a contact surface from the top. It is FIG. (2) which shows an example at the time of seeing a contact surface from the top. It is a figure (the 3) which shows an example at the time of seeing a contact surface from the top. It is a figure (the 1) which shows the example of the shape of the injection nozzle used by 2nd Embodiment. It is a figure (the 2) which shows the example of the shape of the injection nozzle used by 2nd Embodiment. It is a figure which shows the deposit | attachment collection apparatus which concerns on 3rd Embodiment. It is a figure which shows the deposit | attachment collection apparatus which concerns on 4th Embodiment. It is a schematic block diagram of the authentication system used by 5th Embodiment. It is a schematic block diagram of the authentication system used by 6th Embodiment. It is a figure which shows the schematic sectional drawing of piping used by 6th Embodiment. It is a schematic block diagram of the authentication system used by 7th Embodiment. It is the schematic of the deposit | attachment collection apparatus which concerns on 8th Embodiment. It is a schematic sectional drawing of the deposit | attachment collection apparatus which concerns on 9th Embodiment. It is a schematic sectional drawing (the 1) of the deposit | attachment collection apparatus which concerns on 10th Embodiment. It is a schematic sectional drawing (the 2) of the deposit | attachment collection apparatus which concerns on 10th Embodiment. It is a schematic sectional drawing (the 3) of the deposit collection apparatus which concerns on 10th Embodiment.

Next, modes for carrying out the present invention (referred to as “embodiments”) will be described in detail with reference to the drawings as appropriate.
The accompanying drawings show specific embodiments in accordance with the principle of the present invention, but these are for the understanding of the present invention, and are never used to limit the interpretation of the present invention. is not. Modifications by combinations and substitutions of the following embodiments and known techniques are also included in the scope of the present invention. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments, and the description is not repeated.
The authentication system of the present embodiment is intended to analyze the deposits attached to the inspection subject's personal belongings or body, but may be one that analyzes the deposits attached to the card or the like. In the present embodiment, in particular, the deposit attached to the finger of the subject to be inspected is set as the main analysis target.

[First Embodiment]
(Adherent collection device)
First, a first embodiment of the present invention will be described with reference to FIGS.
1 to 3 are schematic cross-sectional views of the deposit collecting apparatus according to the first embodiment. Of these, FIG. 1 shows a state before putting a hand as an inspection object, FIG. 2 shows a place where the hand is put, and FIG. 3 shows a place where the hand is pulled out.
As shown in FIGS. 1 to 3, the deposit collection device 1 includes a housing 11, a contact surface (contact portion) 12, an injection nozzle (injection portion) 13, an infrared sensor 14, a coarse mesh filter 15, an authentication device (authentication acquisition portion). ) 16.

The housing 11 is composed of an upper housing 11A and a lower housing, and has a space inside. As shown in FIG. 1, first, a person to be inspected inserts a finger H (wrist from the wrist) through the insertion port 17 into a space formed by the housing 11.
Then, as shown in FIG. 2, the person to be inspected brings the finger H into contact with the contact surface 12. At that time, biometric authentication data is acquired by the authentication device 16.
That is, the authentication device 16 and the deposit collection device 1 are integrated, and when the person to be inspected makes the finger H contact the contact surface 12 in the deposit collection device 1, the authentication device 16 is a living body such as a fingerprint. Get authentication data. At this time, the adhering matter adhering to the finger H of the person to be inspected is transferred to the contact surface 12 of the adhering matter collecting apparatus 1. Note that the authentication device 16 is a camera, for example, and has a configuration capable of capturing an image of a contact surface made of a transparent member from below.

Subsequently, when it is detected that the person to be inspected has removed the finger H from the deposit collecting device 1, as shown in FIG. 3, gas (airflow) A1 is jetted from the jet nozzle 13 toward the contact surface 12. Is done.
In the present embodiment, the deposit transferred from the finger H to the contact surface 12 in FIG. 2 is peeled by ejecting the gas A1 from the spray nozzle 13 disposed on the surface facing the contact surface 12.
After the gas A1 injected from the injection nozzle 13 collides with the contact surface 12, it flows toward the recovery port (recovery unit) 18 (gas A2 including the separated deposit) and is recovered.

  In this embodiment, the gas A1 is not applied to the finger H of the person to be inspected, but the gas A1 is applied to the deposit transferred on the contact surface 12. For this reason, powerful gas A1 and gas A1 containing solid microparticles, such as sand blast and dry ice powder, can be utilized without worrying about the degree of invasiveness to the finger H. Thereby, the deposits can be efficiently peeled and collected.

  Here, separating the finger H from the deposit collection device 1 means that the finger H is separated at least to a position that does not correspond to the gas A <b> 1 ejected from the ejection nozzle 13. That is, the gas A1 is jetted after the finger H is separated to the right side of the drawing sheet rather than on the extended line of the broken arrow indicating the gas A1 emitted from the jet nozzle 13 in FIG. More preferably, the finger H should be farther to the right side of the paper than the infrared sensor 14 in FIG.

Here, as shown in FIGS. 1 to 3, an infrared light emitting unit 14 a and an infrared light receiving unit 14 b are provided as the infrared sensor 14 in the vicinity of the insertion port 17 of the deposit collection device 1. A broken line R indicates an infrared ray irradiated from the infrared light emitting unit 14a and received by the infrared light receiving unit 14b. As shown in FIG. 2, when the finger H is inserted into the deposit collection device 1 and the infrared ray is blocked, the infrared sensor 14 reacts to detect the insertion of the finger H.
Further, as shown in FIG. 3, when the shielded infrared ray is conducted, it is detected that the finger H is separated from the deposit collection device 1, and the gas A <b> 1 is jetted from the jet nozzle 13.

  The infrared light emitting unit 14a and the infrared light receiving unit 14b may be provided upside down. Further, the infrared light emitting unit 14a and the infrared light receiving unit 14b may be installed obliquely as long as the insertion of the finger H is detected. Further, the number of sets of the infrared light emitting unit 14a and the infrared light receiving unit 14b is not limited to one set as shown in FIGS. 1 to 3, and a plurality of sets may be installed.

  As shown in FIGS. 1-3, the injection nozzle 13 is installed in the state inclined in the direction of the collection port 18 with respect to the vertical direction. The angle with respect to the vertical direction is generally in the range of about 15 to 90 °, but preferably 30 to 45 °. The shape of the injection nozzle 13 is not limited to a round shape, and may be an ellipse, a square, a rectangle, or the like. Further, the flow rate of the gas A1 (see FIG. 3) injected from the injection nozzle 13 decreases as the distance from the injection nozzle 13 increases. Since the dynamic pressure acting on the deposit by the gas A1 is proportional to the square of the flow velocity, the higher the flow velocity, the higher the dynamic pressure acting on the deposit. That is, the dynamic pressure increases as the distance between the injection nozzle 13 and the deposit is shorter. When the injection nozzle 13 exists on the surface facing the contact surface 12 as in the structure shown in FIGS. 1 to 3, the distance between the surface on which the injection nozzle 13 is installed and the contact surface 12 is inserted between them. The size of the inspection object to be checked, for example, the size of the hand or finger H in this embodiment is limited.

The housing 11 may be non-transparent or transparent. However, the transparent body is preferable because the person to be inspected can easily insert the finger H into the deposit collecting apparatus 1.
As shown in FIGS. 1 to 3, a coarse mesh filter 15 is provided in front of the recovery port 18. The coarse mesh filter 15 is for preventing large dust from entering the recovery port 18. The coarse mesh filter 15 is, for example, a stainless wire mesh (aperture 0.5 mm, aperture ratio 50%). The coarse mesh filter 15 can be replaced, and when it is clogged with dust, it can be cleaned and reused or replaced with a new one.

  In the deposit collection apparatus 1 shown in FIGS. 1 to 3, the insertion port 17 into which the finger H is inserted and the recovery port 18 face each other, but are not limited thereto. For example, the collection port 18 may be arranged in the depth direction of the drawing sheet of FIGS. That is, the direction of the insertion port 17 and the direction of the recovery port 18 may be a right angle (perpendicular to any of the upper, lower, left, and right directions). In that case, the injection nozzle 13 is installed so that the gas which hits the contact surface 12 goes to the direction of the collection port 18. That is, the injection nozzle 13 is installed toward the recovery port 18. Further, the insertion port 17 and the recovery port 18 may be offset in a crank shape.

(Authentication system)
FIG. 4 is a diagram illustrating a configuration example of an authentication system including the deposit analysis system according to the first embodiment.
As described above, the authentication system 100 is assumed to be a security gate system capable of analyzing the deposits attached to the finger H of the subject to be inspected and performing fingerprint authentication. In particular, it aims to detect dangerous materials such as explosives.
As shown in FIG. 4, the authentication system 100 includes a deposit collection device 1, a valve 101, a pressure controller 102, a gas supply source 103, and a human sensor 111. In addition, the authentication system 100 includes a deposit concentrator (concentrator) 120, an analyzer (analyzer) 131, a control / data processor (analyzer, authenticator) 132, a display device 133, and a gate (transmission controller). 134.
The deposit concentrating device 120 includes a cyclone collecting device (cyclone collecting unit) 121, a heater 122, a primary filter 123, a secondary filter 124, and an exhaust device 125.

Note that the authentication system 100 illustrated in FIG. 4 is an example, and is not necessarily limited to this configuration.
The injection nozzle 13 (see FIG. 1) in the deposit collection device 1 is connected to an injection nozzle pipe (not shown) that supplies gas to the injection nozzle 13. This injection nozzle pipe is connected to a valve 101 outside the deposit collecting apparatus 1 via a pipe 101a. In addition, each piping connected to each injection nozzle 13 may extend to the outside of the deposit collection device 1 and be connected to the valve 101 (piping 101a), or may be connected to the plurality of injection nozzles 13 in the deposit collection device 1. The connected injection nozzle pipes may be combined into one, and then go out of the deposit collecting apparatus 1 and connected to the valve 101 (piping 101a).

  The valve 101 is connected to the pressure controller 102 via the pipe 101b, and the pressure controller 102 is connected to the gas supply source 103 via the pipe 102a. The gas supply source 103 is, for example, a compressor. In the gas supply source 103, the gas pressure is increased to about 0.7 MPa. The gas pressure of the gas supplied to the injection nozzle 13 is adjusted by the pressure controller 102. The valve 101 is normally closed, and the gas compressed for about 0.1 second is supplied to the injection nozzle 13 in a pulsed manner. The number of gas injections per analysis is not limited to one, and the valve 101 may be opened and closed a plurality of times in one analysis, and a plurality of injections may be performed. Further, an air reservoir may be provided between the valve 101 and the gas supply source 103. For example, when the flow rate passing through the valve 101 is 60 L / min, 100 mL of gas is discharged from the injection nozzle 13 in 0.1 seconds. In the case of multiple injections, the gas is discharged accordingly. At this time, if an air reservoir (accumulator) is provided, the internal pressure between the valve 101 and the gas supply source 103 can be suppressed from decreasing. That is, by storing the required amount of compressed air in the air reservoir, it is possible to prevent the internal pressure between the valve 101 and the gas supply source 103 from being lowered and to inject stable gas from the injection nozzle 13.

On the other hand, the deposit collected from the collection port 18 is sent to the cyclone collecting device 121.
The cyclone collecting device 121 is used for separating and concentrating deposits.
In order to efficiently collect the deposits peeled off by the jetted airflow, it is necessary to suck at a large flow rate from the collection port 18. On the other hand, a mass spectrometer or ion mobility analyzer, which is a typical analyzer 131, generally sucks only a sample flow rate of 1 L / min or less. If the amount of intake at the recovery port 18 is 100 L / min and the analyzer 131 sucks only 1 L / min without concentration, the sample concentration will be 1/100. Accordingly, the deposit concentrating device 120 is installed between the deposit collecting device 1 and the analyzer 131 to separate and concentrate the deposit from the gas. By doing in this way, the deposit | attachment contained in the gas attracted | sucked by the analyzer 131 can be concentrated, and the sensitivity in the analyzer 131 can be improved. In particular, by using the cyclone collection device 121 for the deposit concentrator 120, the deposit can be concentrated with high efficiency.

  The cyclone collection device 121 collects a sample having a certain particle size and density at a lower part of the cyclone collection device 121 using centrifugal force. For example, under the setting conditions of a certain cyclone collection device 121, deposits having a particle size of 1 μm or more rotate in the cyclone collection device 121 and are separated to the outer peripheral side in the cyclone collection device 121 by centrifugal force. The radius of the rotational motion decreases downward. The deposits other than the deposits separated on the outer peripheral side of the cyclone collecting device 121 are discharged from the central exhaust pipe by the exhaust device 125 together with the air flow.

  The minimum particle size (separation limit particle size) of the deposits separated from the gas by the rotational motion in the cyclone collection device 121 varies depending on the configuration of the cyclone collection device 121 and the exhaust flow rate of the exhaust device 125. The deposits collected at the lower part of the cyclone collecting device 121 settle to the heater 122 as it is.

  The heater 122 includes a primary filter 123. The deposits that have settled are collected by the primary filter 123 provided in the heater 122 and heated. The deposit is vaporized there, and the vaporized deposit gas passes through the secondary filter 124 and is introduced into the analyzer 131. The secondary filter 124 is installed for the purpose of preventing the adhering matter not applied to the primary filter 123 from entering the analyzer 131. When the analysis device 131 is a mass spectrometer, if a solid material that does not vaporize enters the analysis device 131, a solid material is applied to the electron beam for generating ions in the process of ionization. As a result, the ionization efficiency of the target substance decreases due to scattering and absorption of the electron beam. The same applies to the analyzer 131 other than the mass spectrometer. For this reason, the secondary filter 124 is provided.

  By the way, when the deposit reaches the primary filter 123 and is heated by the heater 122, the injection in the air nozzle 13 (see FIGS. 1 to 3) is stopped.

  For example, explosive fine particles usually have a particle size of about 5 to 100 μm. Therefore, if the purpose is to collect explosive fine particles, it is preferable to collect fine particles having this particle size. Not only explosive fine particles but also chemical substances, harmful substances, dangerous substances, flammable substances, biological agents, viruses, fungi, genes, environmental substances, etc. are detected if they are attached to the inspection target such as finger H It may be.

  It is not limited to the cyclone collection device 121 as long as the peeled deposits can be concentrated. When the cyclone collecting device 121 is not used, in order to enhance the effect of the deposit concentrating device 120, it is desirable that the suction flow rate of the deposit concentrating device 120 is larger than the flow rate of the gas injected from the injection nozzle 13. For example, when the injection flow rate of the gas injected from the injection nozzle 13 is 2 L / min, the suction flow rate of the cyclone collection device 121 is desirably 2 L / min or more. For example, if the suction flow rate of the cyclone collection device 121 is 100 L / min and the flow rate from the cyclone collection device 121 to the analysis device 131 is 1 L / min, the fine particles collected in the cyclone are concentrated 100 times. It will be.

  The heater 122 heats the deposit at 200 ° C., for example. The temperature of the heater 122 may be a temperature at which the collected matter to be collected can be vaporized, and the temperature of the heater 122 may be changed depending on the component of the analysis target. In addition, the user can remove the primary filter 123 and the secondary filter 124, and can be cleaned and reused as appropriate, or can be replaced with a new one. Although these exchanges can be performed manually, a predetermined automatic exchange device may exchange the primary filter 123 and the secondary filter 124. The primary filter 123 and the secondary filter 124 only need to have filtration accuracy capable of capturing fine particles having a particle diameter of 1 μm or more. For example, a stainless filter having a filtration accuracy of 1 to 50 μm can be used as the primary filter 123 and the secondary filter 124. The piping connecting the heater 122 and the analyzer 131 is also heated. This is to prevent molecules evaporated by the heater 122 from being adsorbed to the inner wall of the pipe. There may be no piping between the heater 122 and the analyzer 131, and the heater 122 and the analyzer 131 may be directly connected.

  As the analyzer 131, for example, various mass spectrometers such as an ion trap mass spectrometer, a quadrupole filter mass spectrometer, a triple quadrupole mass spectrometer, a time-of-flight mass spectrometer, and a magnetic field mass spectrometer are applied. Is possible. Alternatively, an ion mobility analyzer or the like may be used. What connected the ion mobility analyzer and the mass spectrometer may be used. Moreover, the analyzer 131 using various light sources, such as fluorescence, infrared rays, and ultraviolet rays, may be used. When a mass spectrometer is used as the analysis device 131, the control / data processing device 132 analyzes the measured mass spectrum, and identifies the component and the concentration of the deposit from the mass spectrum. A database in which substance analysis data is stored is created in advance, and a threshold for determination is set in the control / data processing device 132. If the concentration of the detected component exceeds the specified threshold, the control / data processing device 132 performs a positive determination. In that case, the presence or absence of the detected component may be displayed on the display device 133. The display device 133 may notify the remote monitoring center or the monitoring staff without displaying the result. In conjunction with this analysis result, the gate 134 that controls the passage of the person to be inspected is opened and closed. Further, recording by a monitoring camera (not shown), biometric authentication data, and the like may be performed. Not only the mass spectrometer but also other analyzers 131 such as an ion mobility analyzer are used to analyze the deposits by collating with the database.

The control / data processing device 132 receives a signal from the human sensor 111 and determines whether or not the person to be inspected is approaching, in addition to performing positive / negative determination of the deposit. In addition, the control / data processing device 132 receives a signal from the authentication device 16 and performs authentication thereof. Further, the control / data processing device 132 receives a signal from the infrared sensor 14 and injects the gas A1 (see FIGS. 1 to 3) from the injection nozzle 13 based on the signal. Specifically, when the infrared sensor 14 detects that the infrared ray has changed from blocking to conduction, the control / data processing device 132 opens the valve 101 to inject the gas A1 from the injection nozzle 13.
Incidentally, the analysis device 131 and the control / data processing device 132 may be an integrated device.

  The gas supply source 103, the pressure controller 102, the valve 101, and the like are connected to the control / data processing device 132 in a circuit. For example, the control / data processing device 132 constantly monitors the remaining amount of the gas supply source 103 and generates an alarm when the remaining amount is low.

(Deposits transferred to the contact surface)
FIG. 5 is a diagram illustrating the deposit transferred on the contact surface. 1 to 3 will be referred to as appropriate.
FIG. 5 is a polycarbonate image after the finger H to which the plastic explosive has adhered is brought into contact with the polycarbonate plate which is the contact surface 12. Reference numeral 201 in FIG. 5 shows an image of the polycarbonate after the finger H to which the plastic explosive has adhered is brought into contact with the polycarbonate plate which is the contact surface 12. Reference numeral 202 denotes an image after particles are peeled off by jetting gas from the jet nozzle 13 onto the polycarbonate plate.
Comparing the reference numeral 201 with the reference numeral 202, it can be seen that the amount of adhesion changes before and after gas injection. That is, it can be seen that the deposit adhered to the contact surface 12 is peeled off by the gas sprayed from the spray nozzle 13.

(signal)
FIG. 6 is a diagram showing the time change of the signal detected by the analyzer.
Here, first, the explosive particles were transferred to the polycarbonate plate by bringing the finger H to which the plastic explosive was attached into contact with the polycarbonate plate as the contact surface 12 (see FIGS. 1 to 3). Then, explosive particle was peeled from the polycarbonate plate by injecting gas A1 (refer to Drawing 1-Drawing 3) to a polycarbonate plate. Then, the explosive fine particles are sent to the analyzer 131 through the deposit concentrator 120 of FIG. 4, and are signals obtained in the analysis in the analyzer 131.
In FIG. 6, the horizontal axis indicates time, and the vertical axis indicates signal intensity (arbitrary unit).

  Here, the gas A1 is injected at the timing of time 0. And the explosive peeled off by gas A1 is collect | recovered and heat-vaporized, and the signal detected with the analyzer 131 can be confirmed as the code | symbol 211. FIG. The signal reaches its peak in about 3 seconds after injection.

(Processing procedure)
FIG. 7 is a flowchart illustrating an example of a processing procedure of the authentication system used in the first embodiment. 1 to 4 will be referred to as appropriate.
First, when the person who is the subject to be inspected approaches the apparatus, the control / data processing apparatus 132 detects the approach of the person based on the signal from the human sensor 111 (S101), and starts the suction of the cyclone collecting apparatus 121. (S102). Although the suction of the cyclone collecting device 121 may always be performed, the presence / absence of driving is controlled by the human sensor 111 as shown in FIG. 7 in order to reduce power consumption and prevent unnecessary dust from being mixed. Is desirable.

Subsequently, the person to be inspected inserts the finger H from the insertion port 17 of the deposit collection device 1 (S111).
At this time, the control / data processing device 132 detects the insertion of the finger H by detecting the blocking of the infrared rays in the infrared sensor 14 (S112).
And the authentication apparatus 16 acquires the fingerprint data as biometric authentication data, such as imaging the image of the contact surface 12 (S131). If the contact surface 12 such as polycarbonate is a resistive film type or capacitive type touch panel, the authentication device 16 obtains fingerprint data at the timing when the touch panel detects that the person to be inspected has touched the contact surface 12. Get it.

  Then, the control / data processing device 132 performs authentication processing with the fingerprint information acquired by the authentication device 16 (S132), and proceeds to step S161.

On the other hand, after step S112, the control / data processing device 132 determines whether or not the finger H has been pulled out by detection by the infrared sensor 14 (S141).
As a result of step S141, when the finger H is not pulled out (S141 → No), the control / data processing device 132 returns the process to step S141.
When the finger H is pulled out as a result of step S141 (S141 → Yes), the control / data processing device 132 causes the gas A1 to be injected from the injection nozzle 13 by opening the valve 101 (S142).
The deposits peeled off from the contact surface 12 by the gas A1 are collected from the collection port 18 (S151), concentrated by the cyclone collection device 121 (S152), and heated by the heater 122 (S153).
Then, the deposits collected by the analyzer 131 are analyzed (S154).

Then, the control / data processing apparatus 132 determines whether or not explosive fine particles have been detected as a result of the analysis in step S154, or whether or not the authentication has failed as a result of the authentication process in step S132 (S161).
As a result of step S161, when explosive fine particles are detected or authentication is unsuccessful (S161 → Yes), the control / data processing device 132 makes a non-permission determination and closes the gate 134 (the gate 134 is changed). (S162), and the process ends.
If the result of step S161 is that explosive fine particles are not detected and authentication is successful (S161 → No), the control / data processing device 132 makes a permission determination, opens the gate 134 (S163), and ends the process. .

With this configuration, the authentication system 100 used in the present embodiment can be used for security gates other than entrances and exits for important facilities such as nuclear power plants, boarding gates for airports and ships, automatic ticket gates for stations, baggage inspection. It can be applied to entrance / exit gates of parking lots, checked luggage inspection halls, and amusement facilities.
The authentication system 100 used in the present embodiment assumes the finger H of the person to be inspected as the inspection object, but is not limited to the finger H. Baggage such as IC cards, card holders that can hold magnetic cards and name cards, mobile phones, mobile terminals, tickets, and passports can be handled as inspection targets.

  As described above, the present embodiment includes the authentication device 16 (see FIGS. 1 to 3), so that authentication at the security gate and adhesion inspection can be performed mainly at the same time. In order to pass through the gate 134, the person to be inspected obtains authentication by bringing a finger H, an ID card or the like into contact with the contact surface 12 (see FIGS. 1 to 3) of the deposit inspection apparatus. At the time of the contact, the deposit is transferred from the finger H or ID card to the contact surface 12. Therefore, the person to be inspected only performs an action for passing through the gate 134, and does not perform an additional new action for the deposit inspection. As described above, according to the present embodiment, it is possible to inspect the deposit without load on the subject to be inspected.

  As described above, the authentication system 100 used in the present embodiment can be applied to a gate opening / closing authentication device or the like for checking presence / absence or trace of a dangerous object of an inspection subject at an entrance / exit in an important facility or the like. For this reason, the authentication system 100 used in the present embodiment can play a role of quickly or in real time analyzing whether or not the deposit attached to the finger H of the subject to be inspected is a dangerous substance such as an explosive.

In the processing procedure shown in FIG. 7, it is assumed that the gate 134 is in the closed state in the normal state, the explosive fine particles are not detected, and the gate 134 is in the open state when the authentication is successful. Yes. However, the present invention is not limited to this, and the procedure may be such that the gate 134 is closed when the gate 134 is in an open state in a normal state and a dangerous substance is detected or authentication is not confirmed.
Further, as described above, the result of analysis by the analysis device 131 and the authentication result may be displayed on the display device 133 to notify the inspection subject of the result. Or you may make it notify the result of the analysis by the analysis apparatus 131, or an authentication result to the guard in a remote place. For example, information on only permission / non-permission may be given to the person to be inspected, and the security guard may be notified including the reason for permission / non-permission.

8-10 is a figure which shows an example at the time of seeing a contact surface from the top. Since the method used in the present embodiment is a method in which the deposit is peeled off by colliding with gas, the peeling efficiency becomes higher when the finger H comes into contact with a certain portion of the contact surface 12.
The reference numeral 221 of the contact surface 12a (12) in FIG. 8 and the reference numeral 222 of the contact surface 12b (12) in FIG.
When fingerprint authentication is used as biometric authentication, the position of the finger H placed by the person to be inspected can be limited by clearly indicating the place where the finger H is placed as shown in FIGS. Is possible. Thereby, the certainty of adhesion peeling can be improved.

  In addition, when the finger H is not placed at the position indicated by the reference numeral 221 or the reference numeral 222, an error or the like may be notified so that authentication processing is not performed. By doing in this way, it is possible to restrict | limit the position of the finger H which a test subject contacts.

  Moreover, as shown in FIG. 10, it is also possible to install a device 223 for inputting a personal identification number on the contact surface 12c (12). Moreover, if the contact surface 12c is a display, the image for inputting the personal identification number currently displayed may be changed.

Many of the explosive molecules to be detected have the property of being easily negatively charged. Accordingly, when the contact surface 12 is made of a material such as Teflon (registered trademark) that is easily negatively charged, the deposits are not easily transferred from the finger H to the contact surface 12.
Therefore, when many of the explosive fine particles to be detected have the property of being easily negatively charged, the contact surface 12 may be a material that is positively charged. However, even if many of the explosive fine particles to be detected are easily negatively charged, a small number of explosive fine particles may be positively charged. Accordingly, it is desirable that the contact surface 12 be made of a material that is difficult to be charged so that both positively charged explosive particles and negatively charged explosive particles are transferred.
The opposite is true when explosive particles tend to be positively charged.

[Second Embodiment]
FIG.11 and FIG.12 is a figure which shows the example of the shape of the injection nozzle used by 2nd Embodiment.
FIG. 11 is an example in which a number of round hole injection nozzles 13a are installed as the injection nozzles 13, and FIG. Covers a wide spray area. The round hole injection nozzle 13a and the slit injection nozzle 13b are provided in the upper casing 11A (see FIGS. 1 to 3). That is, the round hole injection nozzle 13a and the slit injection nozzle 13b are provided on the top surface in the space in the housing 11 (see FIGS. 1 to 3).
Incidentally, the finger H in FIGS. 11 and 12 shows the positional relationship with respect to the ejection nozzle 13 when the finger H is inserted.
In addition, after the finger | toe H is extracted from the deposit | attachment collection apparatus 1 (refer FIGS. 1-3), gas is injected from the round hole injection nozzle 13a or the slit injection nozzle 13b.

It is not necessary for all of the round hole spray nozzles 13a in FIG. 11 to spray at the same time, and some of the round hole spray nozzles 13a may be grouped, and the timing may be shifted for each group. The same applies to the slit spray nozzle 13b in FIG.
As described above, when the injection nozzles 13 are divided into groups and the injection is divided into several times by injecting the gas for each group, a valve 101 is installed in each of the plurality of injection nozzles 13, A valve 101 is installed for each group.
By providing a plurality of injection nozzles 13 in this way, the depositing efficiency of the deposits can be improved. In particular, as shown in FIG. 11 and FIG. 12, it is possible to improve the peeling efficiency of the deposit by causing the gas to be jetted on the entire surface where the hand of the subject to be inspected including the finger H has been inserted. Can do. Furthermore, the wide area | region peeling is enabled by providing the slit injection nozzle 13b shown in FIG.

[Third Embodiment]
FIG. 13 is a diagram illustrating an attached matter collecting apparatus according to the third embodiment.
So far, the configuration in which the entire hand is put into the deposit collecting apparatus 1 is shown, but the size of the deposit collecting apparatus 1 is not limited to inserting the entire hand.
For example, as shown in FIG. 13, the deposit collecting device 1a (1) may be the size of one finger. In FIG. 13, in order to show the size relationship between the finger H and the deposit collection device 1a, only an overview of the deposit collection device 1a is shown, and the other components are not shown.
In FIG. 13, the size is one finger, but it is also possible to have two fingers.
As shown in the third embodiment, by reducing the size of the deposit collection device 1, the installation location of the deposit collection device 1a can be reduced.

[Fourth Embodiment]
FIG. 14 is a diagram illustrating an attached matter collecting apparatus according to the fourth embodiment.
A deposit collection device 1 b (1) shown in FIG. 14 has a camera (imaging unit) 21 installed above the contact surface 12. The other configuration is the same as the configuration shown in FIGS. Based on the image photographed by the camera 21, the control / data processing device 132 (see FIG. 4) recognizes the position where the finger H is brought into contact, and the gas A1 is injected toward that portion (position). In the case of such a configuration, it is possible to change the direction of the ejection nozzle 13 depending on the position where the finger H comes into contact. Note that the camera 21 is not necessarily provided at the position illustrated in FIG. 14 as long as the contact surface 12 can capture an image. If the housing 11 is a transparent member, it may be provided on the upper housing 11 or may be provided below the lower housing 11 and the contact surface 12 may be imaged from below. Further, the camera 21 may have a shape penetrating the upper casing 11.
By setting it as such a structure, since gas is injected with respect to the location which contacted the finger | toe H, the peeling efficiency of a deposit can be improved.

  Further, when the camera 21 is installed as shown in FIG. 14, the surface state of the contact surface 12 can be monitored. That is, if a large amount of inspection is performed, the contact surface 12 may become dirty. In such a case, it is possible to determine whether cleaning is necessary or not from the image captured by the camera 21. In this case, the image captured by the camera 21 may be displayed on the display device 133 (see FIG. 4), so that the user may determine whether cleaning is necessary or unnecessary. Alternatively, the image captured by the camera 21 is reversed in black and white, etc., so that the stain on the contact surface 12 is emphasized, and the control / data processing device 132 cleans the contact surface 12 based on the image of the enhanced stain. It may be determined whether or not it is necessary.

Further, if the camera 21 is a spectroscopic device, for example, a Raman spectroscopic device, the deposit transferred from the deposit H to the contact surface 12 can be analyzed. Before the peeling with the gas A1, the deposit is analyzed by a spectroscopic device, and after the deposit is peeled and collected, the analysis of the deposit is performed again by the analyzer 131. By doing in this way, it becomes possible to analyze the deposits by two types of apparatuses, and it is possible to improve the analysis accuracy.
If the deposit collecting device 1b, particularly the contact surface 12, can be heated for cleaning, cleaning can be performed by evaporating dirt without disassembling the deposit collecting device 1b. .

[Fifth Embodiment]
FIG. 15 is a schematic configuration diagram of an authentication system used in the fifth embodiment.
FIG. 15 shows only the portion related to gas supply. In FIG. 15, only the components necessary for explanation are indicated by reference numerals.
In the embodiments described so far, it is assumed that the deposits are peeled off only by the gas, but in the fifth embodiment, the gas containing fine particles is jetted onto the contact surface 12. In this way, by ejecting the fine particles, it is possible to improve the separation efficiency by the ejected fine particles (injected fine particles) colliding with the deposit, compared to the case of injecting only the gas.
The authentication system 100a (100) shown in FIG. 15 shows an example in which dry ice powder (dry ice fine particles) is used as the spray fine particles.
That is, carbon dioxide gas is injected from the injection nozzle 13 by connecting the carbon dioxide supply source 103 a as the gas supply source 103 to the injection nozzle 13. As the carbon dioxide supply source 103a, a liquefied carbon dioxide cylinder is preferably used. Due to the adiabatic expansion during injection, the temperature of the carbon dioxide gas decreases, and the carbon dioxide gas becomes dry ice powder. Since the dry ice powder is vaporized (sublimated) after colliding with the contact surface 12, the dry ice powder does not remain in the deposit collection device 1, the cyclone collection device 121, or the analysis device 131.
In order to promote the vaporization of dry ice powder, it is desirable that the contact surface 12 can be heated.

[Sixth Embodiment]
FIG. 16 is a schematic configuration diagram of an authentication system used in the sixth embodiment.
FIG. 16 shows only the part related to gas supply. Further, in FIG. 16, only the components necessary for explanation are indicated by reference numerals.
The authentication system 100b (100) shown in FIG. 16 has another gas supply source 103b as the gas supply source 103 in addition to the carbon dioxide supply source 103a. Here, the case where the other type of gas is nitrogen gas will be described, but other gases may be used.
As shown in FIG. 17, a pressure controller 102a (102) and a valve 101a (101) are connected to the carbon dioxide supply source 103a. Similarly, a pressure controller 102b (102) and a valve 101b (101) are connected to the gas supply source 103b.
And the piping connected to the carbon dioxide supply source 103a and the piping connected to the gas supply source 103b are merged downstream of the valve 101a and the valve 101b.

FIG. 17 is a diagram showing a schematic cross-sectional view of the pipe at symbol B in FIG.
As shown in FIG. 17, a pipe 302 through which nitrogen gas flows is provided around a pipe 301 through which carbon dioxide gas flows. As shown in FIG. 17, the pipe 301 through which the carbon dioxide gas flows and the pipe 302 through which the nitrogen gas flows join before the injection nozzle 13. Then, since the flow A3 of carbon dioxide flows on the flow A4 of nitrogen gas (being pushed out by the nitrogen gas), the gas flow strength can be improved.
Thereby, the peeling efficiency can be improved.
As described above, nitrogen gas is the best gas other than carbon dioxide, but atmospheric gas can be used as gas other than carbon dioxide using a compressor or the like.

[Seventh Embodiment]
FIG. 18 is a schematic configuration diagram of an authentication system used in the seventh embodiment.
FIG. 18 shows only the portion related to gas supply. Further, in FIG. 18, only the components necessary for explanation are indicated by reference numerals.
An authentication system 100c (100) illustrated in FIG. 18 includes a fine particle supply source 104 that stores solid fine particles. When high-pressure gas is sent from the gas supply source 103 as the gas is injected from the gas supply source 103, the fine particles stored in the fine particle supply source 104 are drawn into the gas due to the venturi effect. The fine particles stored in the fine particle supply source 104 are ejected from the ejection nozzle 13 together with the gas.
Here, the fine particles are solids (sand blast) such as sand.
When using dry ice powder as in the sixth embodiment, high-pressure carbon dioxide gas is required, and it may not be installed due to laws and regulations. On the other hand, there is no problem in this embodiment storing solid fine particles. In addition, when the solid fine particles are sandblasted, the solid fine particles can be easily obtained.

[Eighth Embodiment]
FIG. 19 is a schematic view of the deposit collecting apparatus according to the eighth embodiment.
The deposit collecting device 1c (1) shown in FIG. 19 is not in contact with the contact surface 12 as in the deposit collecting device 1 shown in the first to seventh embodiments. The injection nozzle 13 is installed on the side surface of the surface 12 (on the side of the contact surface 12). In this way, by allowing the injection nozzle 13 to be installed on the side of the contact surface 12, the upper housing 11A can be omitted as shown in FIG.
And the deposit | attachment collection apparatus 1c shown in FIG. 19 differs from the deposit | collection collection apparatus 1 shown in 1st-7th embodiment, and the upper housing | casing 11A (refer FIGS. 1-3) is not installed. That is, the upper part of the deposit collecting device 1c is opened.
Thus, by omitting the upper casing 11A, the deposit collecting apparatus 1c can easily bring the finger H into contact with the contact surface 12, and can improve usability.
In addition, the injection nozzle 13 does not need to be installed perpendicularly to the contact surface 12, as shown in FIG. Moreover, in the deposit | attachment collection apparatus 1c, the housing | casing 11 upper part may be provided.

[Ninth Embodiment]
FIG. 20 is a schematic cross-sectional view of the deposit collection device according to the ninth embodiment. 20, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.
20 is provided with a push-type button (push button) 22 as the contact surface 12. That is, the upper surface of the button 22 is the contact surface 12. If the button 22 is not pressed, the person to be inspected cannot obtain authentication. When the person to be inspected presses the button 22, the deposit is transferred from the finger H onto the surface of the button 22. Thereafter, as in the first to eighth embodiments, when it is detected that the person to be inspected has removed the finger H from the deposit collection device 1, the gas (airflow) A <b> 1 is emitted from the injection nozzle 13 toward the button 22. Be injected. According to the deposit collection apparatus 1d according to the ninth embodiment, since the place where the person to be inspected comes into contact is limited as compared with the first to eighth embodiments, the position at which the gas injection or the gas containing fine particles is injected is determined. Limited. Therefore, the reliability of the gas collision with the contact surface 12 (button 22) is improved, and the deposits can be efficiently separated and collected.
Furthermore, by pressing the button 22, the finger H is strongly pressed against the contact surface 12 (button 22), and thus the adhered matter is strongly transferred.

[Tenth embodiment]
21 to 23 are schematic cross-sectional views of the deposit collection device according to the tenth embodiment.
In the first to ninth embodiments, the gas was not jetted while the finger H was inserted into the deposit collection device 1, but the deposit collection device 1e (1) shown in Figs. The gas is ejected while the finger H is inserted.
FIG. 21 shows a state where the finger H is not inserted into the deposit collection device 1e. FIG. 22 shows a state where the finger H is inserted into the deposit collection device 1e.
As shown in FIG. 22, while the finger H is being inserted into the deposit collecting apparatus 1e, the less invasive gas A5 is directly collided with the finger H (first injection). The gas A5 having a low invasive property is a gas in which a gas having a low airflow strength or a particle having a high invasive property such as dry ice powder is not mixed. The gas A6 after colliding with the finger H is recovered from the recovery port 18.

Then, as shown in FIG. 23, when the control / data processing device 132 confirms that the finger H has moved away from the deposit collection device 1e, the control / data processing device 132 ejects a gas A1 containing highly invasive fine particles such as dry ice powder. (Second injection). The gas A1 having a strong invasion is a gas having a high airflow strength or a gas containing highly invasive fine particles such as dry ice powder. Then, the gas A2 after colliding with the finger H is recovered from the recovery port 18.
That is, the deposit collecting apparatus 1e shown in FIGS. 21 to 23 is characterized by changing the gas characteristics depending on the presence or absence of the finger H.

  As described above, the deposit collection device 1e shown in FIGS. 21 to 23 peels deposits directly from the finger H with the less invasive gas A5 while the finger H is inserted into the deposit collection device 1e. Try. And after the finger H leaves | separates from the deposit | attachment collection apparatus 1e, the deposit | attachment collection apparatus 1e makes gas A1 with high peeling efficiency collide with the contact surface 12. FIG. If the deposit is weak in adhesion, it can be peeled off by the gas A5 sprayed directly onto the finger H. By setting it as such a structure, the amount of peeling can be improved.

  Although only one injection nozzle 13 is shown in FIGS. 21 to 23, different injection nozzles 13 may be prepared for the less invasive gas A5 and the higher gas A1. At this time, the fine particle supply source 104 (see FIG. 18) or the carbon dioxide supply source 103a (see FIG. 15) may be connected to the injection nozzle 13 that injects the highly invasive gas A5. Further, when the same injection nozzle 13 is used for the less invasive gas A5 and the higher gas A1, the mixing of carbon dioxide gas and fine particles may be controlled by the valve 101 or the like.

  The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to having all the configurations described. In addition, a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of a certain embodiment. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

Each of the above-described configurations, functions, and devices 131 and 132 may be realized by hardware by designing a part or all of them, for example, with an integrated circuit. Further, as shown in FIG. 4, the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by a processor such as a CPU. Information such as programs, tables, and files for realizing each function is stored in an HD (Hard Disk), a memory, a recording device such as an SSD (Solid State Drive), an IC (Integrated Circuit) card, It can be stored in a recording medium such as an SD (Secure Digital) card or a DVD (Digital Versatile Disc).
In each embodiment, control lines and information lines are those that are considered necessary for explanation, and not all control lines and information lines are necessarily shown on the product. In practice, it can be considered that almost all configurations are connected to each other.

1, 1a-1e Deposit collecting device 11 Housing 12, 12a-12c Contact surface (contact part)
13, 13a, 13b Injection nozzle (injection part)
DESCRIPTION OF SYMBOLS 14 Infrared sensor 14a Infrared light emission part 14b Infrared light reception part 15 Coarse mesh filter 16 Authentication apparatus (authentication acquisition part)
17 Insertion port 18 Collection port (collection part)
21 Camera (imaging part)
22 button 100, 100a to 100c authentication system 101, 101a, 101b valve 102, 102a, 102b pressure controller 103, 103b gas supply source 103a carbon dioxide supply source 104 particulate supply source 111 human sensor 120 adhering substance concentrating device (concentration unit)
121 Cyclone Collection Device (Cyclone Collection Unit)
131 Analyzer (analysis unit)
132 Control / data processing device (analysis unit, authentication unit)
133 Display device 134 Gate (traffic control unit)
A1, A2, A5, A6 gas (air flow)
H finger (inspection object)

Claims (20)

A contact portion for contacting the inspection object;
After the inspection object is separated from the contact portion, an injection portion that injects an airflow toward the contact portion;
And a collection unit that collects the airflow ejected by the ejection unit. The attached matter collecting apparatus according to claim 1, wherein the contact portion has a mark indicating a position where the inspection object is brought into contact. The depositing apparatus according to claim 1, wherein the ejection unit is disposed so as to be ejected over the entire surface where the inspection object is inserted. The adhered gas collecting apparatus according to claim 1, wherein the airflow ejected from the ejection unit includes fine particles. The deposit is a dry ice fine particle. The deposit collecting apparatus according to claim 4, wherein the fine particle is a dry ice fine particle. 5. The deposit collecting apparatus according to claim 4, wherein the fine particles are solid fine particles. The adhering matter collecting apparatus according to claim 6, wherein the solid fine particles are sand blasting. The injection unit performs a first injection while the inspection object is inserted into the deposit collection apparatus, and performs a second injection after the inspection object is extracted from the deposit collection apparatus. Done
The deposit collecting apparatus according to claim 1, wherein the strength of the airflow is higher in the second injection than in the first injection. The injection unit performs a first injection while the inspection object is inserted into the deposit collection apparatus, and performs a second injection after the inspection object is extracted from the deposit collection apparatus. Done
The deposit collection apparatus according to claim 1, wherein the first jet does not include particulates, and the second jet includes the particulates. The inspection object is a finger;
The deposit collecting apparatus according to claim 1, wherein the deposit collecting apparatus is sized to insert one finger. The deposit collecting apparatus according to claim 1, further comprising an imaging unit that images the contact unit. The depositing device according to claim 1, wherein the ejection unit is provided on a side of the contact unit. The upper part is open | released. The deposit | attachment collection apparatus of Claim 12 characterized by the above-mentioned. The contact portion is provided on a push button;
The push button is pressed by the inspection object, and after the inspection object leaves the push button, the ejection unit ejects an airflow toward the push button. The deposit collecting device according to 1. A contact portion for contacting the inspection object;
After the inspection object is separated from the contact portion, an injection portion that injects an airflow toward the contact portion;
A recovery unit for recovering the airflow injected by the injection unit;
An analysis unit for analyzing a substance contained in the collected airflow;
A deposit analysis system comprising: A traffic control unit,
The adhering matter analysis system according to claim 15, wherein when a predetermined substance is detected as a result of analysis by the analysis unit, the passage control unit does not permit passage. An authentication acquisition unit and an authentication unit;
The authentication acquisition unit
When the inspection object comes into contact with the contact portion, obtain authentication information from the inspection object,
The authentication unit
The attached matter analysis system according to claim 15, wherein authentication processing of the inspection object is performed based on authentication information acquired by the authentication acquisition unit. A traffic control unit,
When a predetermined substance is detected as a result of analysis by the analysis unit, or when authentication fails as a result of the authentication process, the traffic control unit does not permit the traffic control unit to pass. The deposit analysis system according to claim 17. The deposit analysis system according to claim 15, further comprising a concentration unit configured to concentrate a substance contained in the collected airflow between the recovery unit and the analysis unit. The deposit analysis system according to claim 19, wherein the concentration unit includes a cyclone collection unit.