JP2013010064A - Continuous rocking type particle surface treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a continuous oscillating particle surface treatment device of a stirring method by oscillating a plurality of semicircular arc-shaped reaction channels 1 and a reaction channel inlet 1a at one end of the reaction channel. The reaction channel outlet 1b is provided at the other end, and the arc center of the reaction channel is placed on a common axis so that the adjacent reaction channel inlet and the reaction channel outlet are connected via the check tube 2. The particles 30 are supplied in parallel from the inlet of the reaction channel at one end of the reaction channels arranged in parallel, discharged from the outlet of the reaction channel at the other end, and reacted with a predetermined reaction gas. Supply to the flow path and swing the reaction flow path about the center of the arc.
[Selection] Figure 1A

Description

  The present invention relates to a continuous rocking-type particle surface treatment apparatus that is agitated by rocking.

  A so-called particle surface treatment process has been devised that can efficiently and rapidly perform surface treatment such as drying, coating, or granulation on so-called particles such as powders and granules.

  As an example of a conventional particle surface treatment apparatus, since the object to be treated is a powder or a granular material, an apparatus using a rotating drum is proposed. When a rotating drum is used, many rotating drums have stirring blades for stirring (for example, see Patent Document 1). As shown in FIG. 5, the powder 50 having a particle size of more than 75 μm and not more than 425 μm is stirred, but a rocking mixer is used as a stirring device including a cylindrical stirring vessel 52 having a raw material inlet 51 on the central axis. The method used is shown. In order to effectively stir the powder, the cylindrical stirring vessel 52 can swing the central axis, but basically the cylindrical stirring vessel 52 is rotated around the central axis 54. . Although the rotation is 8 to 30 rpm, the stirring blade 53 provided in the cylindrical stirring vessel 52 functions effectively, and the scraping by the stirring blade 63 is effectively used.

  Further, the Archimedes pump shown in FIG. 6 is known as having a simple configuration for transporting a conventional fluid or the like. There is a spiral wing 61 inside the tube 60, and the spiral wing 61 rotates to continuously move the fluid from below to above. Although it is low in efficiency, it is also suitable for transporting viscous liquids and is still used in various places. It is also used as a propulsion device for icebreakers and the like. In other words, the efficiency is not so good, but it is a powder that is difficult to convey with a general blower or pump, and the structure is simple as an applicable technique for conveying the powder targeted by the present invention. It has been used for a long time.

Japanese Patent No. 4235212

  However, the particle surface treatment apparatus having the above-described configuration also has a problem.

  In the method of Patent Document 1, since the surface treatment is performed while putting the powder or granular material in the rotating drum and stirring, it is possible to treat each surface of the powder or granular material uniformly. It is. However, the rotating drum type as shown in FIG. 5 has a drawback that it is difficult to continuously process the particles.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a continuous oscillating particle surface treatment apparatus that is agitated by oscillating.

  In order to achieve the above object, the present invention is configured as follows.

According to the first aspect of the present invention, a swing drive shaft for swing drive,
A reaction flow path composed of arc-shaped first flow paths and second flow paths that are alternately arranged in a staggered manner along the axial direction of the swing drive shaft;
A particle supply unit for supplying particles that are a reaction target to one end of the first flow path;
A reaction gas supply unit for supplying a reaction gas to the reaction channel;
A first check tube connecting the other end of the first flow path and one end of the second flow path;
By swinging the swing drive shaft and swinging the reaction flow path, the particles supplied from the particle supply section are allowed to flow into the first flow path, the first check tube, and the second flow path. Provided is a continuous rocking particle surface treatment apparatus that reacts with the reaction gas while moving in order with a path.

  According to the continuous oscillating particle surface treatment apparatus of the present invention, since there is no rotating part, leakage at the time of supply and discharge of the reaction gas can be prevented, while continuously supplying, moving and discharging particles. By bringing the particles into contact with the reaction gas, a uniform surface treatment can be performed on the particles. As a result, high-quality and high-quality surface treatment can be achieved.

The figure which shows the structure of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention. FIG. 1A is a diagram showing the top view of FIG. FIG. 1B is a plan view of FIG. 1A, in which the reaction channel on the near side is indicated by a solid line, and the reaction channel on the back side adjacent thereto is indicated by a broken line Diagram showing a specific example of a reactive gas generator The figure which shows the structure of the continuous rocking | fluctuation type particle | grain surface processing apparatus in the modification of 1st Embodiment of this invention. Illustration of particle surface treatment in FIG. 1E Enlarged perspective view of the mixing member of FIG. 1E The perspective view at the time of using a stirring blade in the continuous rocking | fluctuation type particle | grain surface processing apparatus in another modification of 1st Embodiment of this invention. Illustration of particle surface treatment in FIG. 1H Enlarged perspective view of the stirring blade of FIG. 1H The perspective view at the time of using a movable stirring blade in the continuous rocking | fluctuation type particle | grain surface processing apparatus in another modification of 1st Embodiment of this invention. The perspective view at the time of using a movable stirring blade in the continuous rocking | fluctuation type particle | grain surface processing apparatus in another modification of 1st Embodiment of this invention. Side view of the operation of the movable stirring blade of FIG. 1K The figure which shows the movement of the particle | grains of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention, and the reaction state of a reactive gas (namely, the state of surface treatment and gas concentration change in a counterflow). In order to explain the disadvantages in the case of non-counterflow, the structure of non-counterflow and the movement of particles and the reaction state of the reaction gas when the reaction gas is small (that is, surface treatment and gas concentration change in the case of non-counterflow) State) In order to explain the disadvantages in the case of non-counterflow, the structure of non-counterflow is used, and the reaction gas moves in a larger amount of reaction gas and the reaction state of the reaction gas (that is, the surface treatment and gas concentration change in the case of non-counterflow). State) The figure which shows the state of the pressure and reaction gas of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention. The figure which shows the Example regarding the drive device for rocking | fluctuation of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention. The figure which shows the Example regarding the drive device for rocking | fluctuation of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention. The figure which shows the Example regarding the drive device for rocking | fluctuation of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention. The figure which shows the Example regarding the drive device for rocking | fluctuation of the continuous rocking | fluctuation type particle | grain surface processing apparatus in 1st Embodiment of this invention. The figure which shows the structure of the conventional intermittent rotating drum type particle | grain surface processing apparatus. Diagram showing the structure and principle of a conventional Archimedes pump

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

  DESCRIPTION OF EMBODIMENTS Hereinafter, various embodiments of the present invention will be described before detailed description of embodiments of the present invention with reference to the drawings.

According to the first aspect of the present invention, a swing drive shaft for swing drive,
A reaction flow path composed of arc-shaped first flow paths and second flow paths that are alternately arranged in a staggered manner along the axial direction of the swing drive shaft;
A particle supply unit for supplying particles that are a reaction target to one end of the first flow path;
A reaction gas supply unit for supplying a reaction gas to the reaction channel;
A first check tube connecting the other end of the first flow path and one end of the second flow path;
By swinging the swing drive shaft and swinging the reaction flow path, the particles supplied from the particle supply section are allowed to flow into the first flow path, the first check tube, and the second flow path. Provided is a continuous rocking particle surface treatment apparatus that reacts with the reaction gas while moving in order with a path.

  According to a second aspect of the present invention, in the first aspect, the reaction gas is supplied from the other end of the second flow path toward the one end of the first flow path. A continuous oscillating particle surface treatment apparatus is provided.

  According to the third aspect of the present invention, the first flow path and the second flow path are arranged in substantially the same arc shape and substantially in the same phase, and swing integrally. The continuous-type rocking | fluctuation type particle | grain surface processing apparatus as described in the aspect is provided.

  According to a fourth aspect of the present invention, any one of the first to third aspects, further comprising a mixing member that protrudes into the reaction channel and promotes mixing of the particles and the reaction gas. A continuous rocking-type particle surface treatment apparatus as described in one is provided.

According to the fifth aspect of the present invention, the reaction channel further comprises a stirring blade capable of swinging the particles,
The continuous oscillating particle surface treatment apparatus according to the fourth aspect, wherein the particles are oscillated a plurality of times in each of the reaction flow paths by the stirring blade.

  According to a sixth aspect of the present invention, the continuous-type oscillating type according to any one of the first to fifth aspects, wherein the reaction gas supply unit is operated so that the inside of the reaction flow path has a negative pressure. A particle surface treatment apparatus is provided.

  According to a seventh aspect of the present invention, there is provided the continuous rocking particle surface treatment apparatus according to any one of the first to sixth aspects, wherein a chlorosilane-based compound is gasified and used as the reaction gas. To do.

  According to an eighth aspect of the present invention, there is provided the continuous rocking particle surface treating apparatus according to any one of the first to seventh aspects, wherein the particles are sand.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1A is a diagram showing a configuration of a continuous rocking particle surface treatment apparatus according to the first embodiment of the present invention.

  Referring to FIG. 1A, a continuous rocking particle surface treatment apparatus includes a large number of semicircular cylindrical members 10 having substantially the same shape and a thick semicircular (in other words, semicircular) side surface arranged in parallel. Has been. That is, all the semi-annular cylindrical members 10 are positioned at substantially the same phase on a common axis (axial center of a swing drive shaft 100 described later) 40 at the center of the arc of the reaction flow path 1 inside. They are arranged in parallel.

  All the semi-annular cylindrical members 10 are connected to the swing drive shaft 100 (see FIG. 4A) in substantially the same phase, and the swing drive shaft 100 swings within a predetermined angle range by the drive of the swing drive device 41. By moving, all the semi-annular cylindrical members 10 are configured to swing integrally.

  The reaction channel inlet 1a at one end of one of the two semicircular cylindrical members 10 and the reaction channel outlet 1b at the other end of the other semicircular cylindrical member 10 are adjacent to each other. They are arranged adjacent to each other, and both are connected via the check tube 2, and the reaction surface 1 is alternately staggered along the direction of the axis 40 of the oscillating drive shaft 100 as a whole particle surface treatment apparatus. The reaction channel 1, the check tube 2, the reaction channel 1, and the check tube 2 are formed in a zigzag manner.

  One of the reaction flow channels 1X and 1Y in the particle supply unit 3 and the particle discharge unit 4 positioned at both ends of a series of reaction flow channels 1 of a large number of semicircular cylindrical members 10 arranged in parallel. The 1X inlet is the reaction channel first inlet 1aa, and the other end of the reaction channel 1Y is the reaction channel final outlet 1bb.

  A particle supply unit 3 for supplying particles 30 as a reaction process target is connected to the reaction channel first inlet 1aa. A particle discharge unit 4 for discharging particles 30 is connected to the reaction channel final outlet 1bb. Each of the particle supply unit 3 and the particle discharge unit 4 is formed of a quarter circular cylindrical member and has a flow path therein.

  A reaction gas generator 5 as an example of a reaction gas supply unit that generates a predetermined reaction gas and supplies it to the reaction channel 1 is configured such that a gas supply pipe 5a is connected to a part of the reaction channel final outlet 1bb. Gas is supplied into the reaction channel 1 through the gas supply pipe 5a and the reaction channel first inlet 1aa. The reaction gas generator 5 has a gas discharge pipe 5b connected to a part of the reaction flow path first inlet 1aa, and a reaction gas from the reaction flow path 1 through the reaction flow path final outlet 1bb and the gas discharge pipe 5b. Is discharged. The semicircular cylindrical member 10 having the reaction channel 1, the particle supply unit 3, and the particle discharge unit 4 are swung around a common axis 40 at the arc center of the arc center. The reaction gas is configured to perform a predetermined reaction.

  FIG. 1B shows a schematic diagram as a top view of FIG. 1A for easy understanding. It can be said that the particles 30 introduced from the particle supply unit 3 are moving in a zigzag manner in the horizontal direction in the reaction channel 1. However, since the arc-shaped reaction channel 1 actually swings in an arc shape, the positions of the particles 30 are as shown in FIG. 1C. FIG. 1C is a plan view of FIG. 1A, and the reaction channel 1 on the near side (here, for the sake of easy understanding of the explanation, the reaction channel 101 on the near side is indicated by a solid line). The reaction channel 1 on the side (here, the reaction channel 102 on the back side is used for easy understanding) is indicated by a broken line, and (1) to (5) in FIG. Simultaneously, the position of the particle 30 is indicated by ◯. The particle 30 is always located at the substantially lowermost part of the arc-shaped reaction channels 101 and 102 by gravity. Actually, the position is delayed because it does not flow smoothly, but is schematically shown here. In the reaction channel 101 on the near side, the particles 30 are supplied from one end 101a, and the particles 30 that have reached (4) in FIG. 1C (that is, the other end 101b of the reaction channel 101 on the near side) Then, gravity falls from the end 101 b of the reaction channel 101 on the near side via the check tube 2 and moves to one end 102 a of the reaction channel 102 on the back side. The particles 30 that have fallen once do not flow backward (against gravity) from the adjacent reaction channel 102 on the back side. As will be described later, since the reaction gas flows in a direction opposite to the direction in which the particles 30 move, some of the particles 30 have a particle size of, for example, about 10 μm or less. There is a possibility that the particles 30 which are likely to float smallly flow backward on the reaction gas. (6) in FIG. 1C shows the reaction channel 102 described by the broken line in (5) as a solid line, and the reaction channel 103 adjacent to the back side next to the reaction channel 102 by a broken line, Hereinafter, the movement of the particles 30 is schematically shown in (7) to (10). As for the movement of the particles 30, after (10), the reaction flow path is different, but the same operation as that after (1) is performed.

  FIG. 1D shows a specific example of the reaction gas generator 5. The state where the liquid surface treatment compound is put in the container 5-1 is shown, and the container 5-1 is a sealed container, but the inert gas supply pipe 5-3 and the reaction gas discharge pipe 5-4 are connected. Yes. The inert gas supply pipe 5-3 is configured to be below the liquid surface of the surface treatment compound, and the reaction gas discharge pipe 5-4 is necessarily above the liquid surface. By heating, the surface treatment compound is vaporized and discharged as a reaction gas from the reaction gas discharge pipe 5-4. Here, the inert gas supplied from the inert gas supply pipe 5-3 can be efficiently discharged by bubbling in the liquid. Nitrogen may be used as the inert gas, but air can also be selected. However, the selection of the inert gas differs depending on the type of reactive gas. For example, as will be described later, when a chlorosilane compound is used as the surface treatment compound, it is possible to select a dry gas, for example, dry air, in order to avoid reaction with moisture.

  In the Archimedes pump as shown in FIG. 6, continuous rotation is an essential condition for driving the spiral wing 61, but using the basic principle, in the apparatus of this embodiment, as shown in FIG. 1A. Even if it is divided into semicircular arc shapes, it does not require continuous rotation while keeping the same transport function as the Archimedes pump.

  In FIG. 1E, in the reaction channel 1, an inclined plate 11 having a slit 11 a at the upper part, which promotes mixing of the particles 30 and the reaction gas, and a through-hole a fixed to the central part of the inclined plate 11. A cylindrical mixing member 6 is provided. According to the mixing member 6, as shown in FIG. 1F, the particles 30 are conveyed by gravity from the left to the right in FIG. 1F, and from the rectangular slit 11a above the inclined plate 11, FIG. Fall to the right of On the other hand, the reactive gas is blown from the right side to the left side in FIG. 1F and flows through the through-hole 6a of the central cylindrical mixing member 6 to the left side in FIG. 1F.

  An enlarged view of the mixing member 6 is shown in FIG. 1G. The slit 11 a and the through-hole 6 a of the cylindrical mixing member 6 are provided in the inclined plate 11, but the inclined plate 11 completely covers the inside of the reaction channel 1. The upper slit 11a is required to be located above the through-hole 6a of the central cylindrical mixing member 6. Moreover, the through-hole 6a of the central cylindrical mixing member 6 should just exist in the center vicinity. As a result, after the particles 30 conveyed from the left to the right in FIG. 1G reach the slit 11a above the inclined plate 11 via the inclined surface of the inclined plate 11, the particles 30 form a waterfall shape. It falls on the right side of FIG. 1G. At this time, since the through-hole 6a of the central cylindrical mixing member 6 has a cylindrical wall, the particles 30 cannot flow from the through-hole 6a to the right in FIG. 1G. . On the other hand, the reaction gas comes from the right side of FIG. 1G and can flow to the left side of FIG. 1G from the through-hole 6a of the cylindrical mixing member 6 near the center or the upper slit 11a. The slit 11a is almost closed when the particles 30 arrive, and it is difficult for the reaction gas to pass through. The slit 11a tends to flow to the left in FIG. 1G from the through-hole 6a of the cylindrical mixing member 6. .

  In FIG. 1H, a stirring blade 7 in which two plates are combined in an inverted V shape is configured in the reaction channel 1, and the particles 30 are shaken a plurality of times in each of the reaction channels 1 by the stirring blade 7. It is configured to move. The stirring blade 7 has slopes 7a on both sides, and is configured to temporarily receive the particles 30 arriving by swinging on one slope 7a and drop them into a waterfall-like space in the opposite side as the swinging progresses. It is a thing.

  Here, even if the mixing member 6 shown in FIG. 1E and the stirring blade 7 shown in FIG. 1H coexist, the same effect can be obtained.

  FIG. 1J shows an enlarged view of the stirring blade 7. In this example, the two inclined surfaces 7 a have a symmetrical shape at the angle θ. As a result, as shown in FIG. 1I, the particles 30 are easy to come into contact with the reaction gas when being dropped in a waterfall shape while being stirred. According to such a configuration, the particles 30 supplied from the particle supply unit 3 are fed into the reaction channel 1 from the reaction channel first inlet 1aa, and the reaction channel 1 is rocked by driving the rocking drive shaft 100. As a result, the reaction channel 1 moves in a semicircular arc shape in order. The swinging angle of the reaction channel 1 is approximately 90 degrees to the left and right, that is, ± 90 degrees and 180 degrees as a whole. The particles 30 move along the lower part of the inner wall of the reaction channel 1 by the oscillation of the reaction channel 1. The particles 30 are transported while being held at the lowermost part of the reaction channel 1 having a substantially semicircular arc shape by gravity. The particles 30 move in each reaction channel 1, reach from each reaction inlet 1 a to each reaction channel outlet 1 b, and move to each adjacent reaction channel 1 via each check tube 2. However, the check tube 2 is provided along the direction of gravity, and once the particle 30 enters the check tube 2 and moves to the next reaction channel 1, it returns to the original reaction channel 1. It is configured not to be able to.

  As a result, the particles 30 are sequentially transported while moving to the adjacent reaction channel 1 by swinging continuously, and finally reach the reaction channel final outlet 1bb and are connected via the check tube 2. Is taken out from the particle discharge section 4. On the other hand, the reaction gas supplied from the reaction gas generator 5 is first supplied to the reaction channel final outlet 1bb in the direction opposite to that of the particles 30, and is blown through the plurality of connected reaction channels 1. The blown reaction gas reaches the reaction channel first inlet 1aa and is then collected by the reaction gas generator 5. Every time the particles 30 moving in the opposite direction come into contact with the reaction gas, a predetermined surface treatment is performed on the particles 30.

  When the mixing member 6 shown in FIG. 1E is used, the particles 30 are transported by gravity from the left in FIG. 1E toward the right and slightly to the right, and fall from the upper slit 11a to the right in FIG. 1E. However, the reactant gas is blown from the right side of FIG. 1E and flows through the through-hole 6a of the central cylindrical mixing member 6 to the left side of FIG. 1E. As a result, it is possible for the particles 30 falling in a waterfall shape to contact the reaction gas uniformly and effectively. In general, when the particles 30 are gathered three-dimensionally, it is difficult for the reaction gas to reach the inner particles 30, but the particles 30 are in a waterfall shape as described above. Thus, the two-dimensionally falling particle group can be easily brought into contact with the reaction gas.

  In addition, when the stirring blade 7 shown in FIG. 1H is used, the particles 30 and the reactive gas as effective as the mixing member 6 cannot be brought into contact with each other, but with a simple configuration, a waterfall shape is formed from the top of the stirring blade 7. The feature is that the falling state of the particles 30 can be reproduced. In the mixing member 6, only the movement of the particles 30 in one direction can be performed. That is, the rocking angle of the reaction channel 1 is not ± 90 degrees, but the angle until the particle 30 reaches the check tube 2 immediately before, for example, ± 80 degrees, is swung only several times, and then the rocking angle is changed. It is assumed that the particles 30 are transferred to the adjacent reaction channel 1 at a position of ± 90 degrees. That is, since the stirring blade 7 is configured to effectively make contact between the particles 30 and the reaction gas both in a reciprocating manner, by increasing the effect in each single reaction channel 1, a plurality of adjacent reaction flows can be obtained. It is possible to reduce the total number of paths 1. With a simple configuration, it is possible to provide a continuous oscillating particle surface treatment apparatus capable of efficient and high-quality surface treatment.

  In the conventional rotating drum type as shown in FIG. 5, in the stirring method using the stirring blade 63, the mixing effect by dropping the powder or the particulate matter after the powder or the granular material is partially swung up by the stirring blade was aimed. However, the shearing stress on the powder or the granular material at the time of scraping and the damage to the powder or the granular material due to the impact at the time of dropping had many adverse effects. In particular, in the past, since the particles are partially scraped up, the probability of contact with all powders or granular materials has been complemented by increasing the number of rotations. Furthermore, the powder or the granular material is re-divided, resulting in a problem that the surface area increases suddenly, increasing the amount of the compound necessary for the surface treatment and increasing the treatment time.

  However, according to the configuration shown in FIG. 1A, the mixing member 6 or the stirring blade 7 acts by the smooth movement of the particles 30 due to the swinging of the reaction flow path 1, and the particles 30 fall in a flat shape like a waterfall. Therefore, the damage such as shear stress or drop impact to the particles 30 can be extremely reduced, and an effective reaction can be achieved by improving the probability of contact with the reaction gas. High quality surface treatment is possible.

  In particular, when a chlorosilane-based compound is used as the surface treatment compound, it is important to further improve the contact probability with the particles. This is because the chlorosilane-based compound realizes the coupling coating in a short time only by contacting the surface of the particle 30. In addition, since the portion coated with the chlorosilane compound has the property that the chlorosilane compound is not overlapped with the chlorosilane compound, the surface treatment can be performed with a single molecule, resulting in an efficient particle surface treatment process. . For this purpose, stirring for the purpose of mixing in the conventional rotating drum type shown in FIG. 5 is not required at all, and the contact between the surface treatment compound and the particles 30 by the continuous rocking type as shown in FIG. Priority is given and further effects can be expected.

  The stirring blade 7 shown in FIG. 1H may have a movable structure. For example, when the particle 30 arrives, it is tilted while maintaining a predetermined angle θ corresponding to the arrival of the particle 30. When the particle 30 arrives from the reverse direction, the angle θ is maintained in the reverse direction. Therefore, a movable stirring blade that can be maintained inclined is also conceivable. An outline is shown in FIGS. 1K and 1L. FIG. 1M shows a side view of the operation of the movable stirring blade 7A. A flat plate 13 that is swingably supported by a hinge 14 fixed to the bottom surface 1 d of the inner surface of the reaction channel 1 is configured to swing by a predetermined angle θ sandwiched between a pair of stoppers 15. A hinge with a built-in ball bearing that can withstand powder is suitable. A hinge is often used for the rotational movement of the flat plate 13, but the flat plate 13 may be bonded and fixed with a flexible film. Alternatively, the material of the flat plate itself is flexible, and it is also possible to substitute it by joining in a configuration in which the portion in contact with the bottom surface 1d of the inner surface of the reaction channel 1 is thinned.

  In the first embodiment, a bearing is often used as the rotating shaft of the stirring blade 7, but it may be bonded and fixed with a flexible film. Alternatively, a configuration in which the material of the stirring blade 7 itself is flexible and the portion corresponding to the rotating shaft of the stirring blade 7 is thinned can be substituted.

  Next, the movement of particles and the reaction state of the reaction gas in the continuous rocking particle surface treatment apparatus according to the first embodiment of the present invention will be described. The effect of the counterflow is shown in FIGS. 2A to 2C. In this invention, as shown to FIG. 1A, the conveyance direction of the particle | grains 30 and the blowing direction of a reactive gas are reverse. In other words, the situation is counterflow. According to such a configuration, as shown in FIG. 2A, in the counter flow, the reaction gas concentration is initially high (the right end of the graph of FIG. 2A), but the particles 30 that come into contact in the middle of the reaction channel 1. Since it is consumed by surface treatment, it gradually decreases. On the other hand, the particle 30 is initially in an untreated state (the left end of the graph of FIG. 2A), but the surface treatment proceeds with the reaction gas as it moves through the reaction channel 1. Here, although the reaction gas immediately before discharge has become a low concentration, the concentration of the reaction gas can be drastically reduced by contacting the untreated particles 30 immediately after being charged. That is, it means that the unreacted reaction gas can be effectively used for the surface treatment of the particles 30 immediately before discharge. And that there are few unreacted gas content is useful for the effective utilization of the reactive gas.

  In addition, as will be described later with reference to FIG. 3, when the reaction gas leaks in the vicinity of the supply part of the particles 30 is assumed, the low concentration is very advantageous. Efficient use of reaction gas and prevention of leakage of unreacted gas to the outside of the reaction channel 1 are safe from the danger especially when a chlorosilane compound is used as the surface treatment compound. It is effective from the viewpoint of securing. Further, in FIG. 2A, when the particles 30 are discharged (the right end of the graph of FIG. 2A), for example, the surface treatment becomes inhomogeneous in the middle, or the amount of the reaction gas and the particles 30 is not adequately optimized. However, since it comes into contact with a very high concentration of reactive gas immediately before discharge, it is also a configuration that can maintain high quality surface treatment.

  FIG. 2B and FIG. 2C illustrate the disadvantages of not having a counterflow. As shown in FIG. 2B, when the concentration of the reaction gas is slightly low, the amount of unreacted gas may be reduced in the discharged gas, but conversely, the surface treatment of the particles becomes insufficient. In addition, when the reaction gas is slightly large as shown in FIG. 2C, the surface treatment of the particles can be performed sufficiently, but conversely, the possibility that unreacted gas is discharged becomes high. That is, when the flow is not counter flow, very high accuracy is required for proper control of the amount of the reaction gas particles. The possibility that it will be difficult to improve the efficiency and quality of particle surface treatment increases. However, as the first embodiment of the present invention, when the counter flow as shown in FIG. 1A is used, it is easy to reduce the unreacted gas discharged, and some amount of the reaction gas and the particles 30 are optimized. In addition, the quality of the surface treatment of the discharged particles 30 can be ensured.

  Further, regarding the movement of the particles 30 and the reaction state of the reaction gas in the continuous rocking particle surface treatment apparatus according to the first embodiment of the present invention, the inside of the reaction channel 1 has a negative pressure (particle supply unit 3 and The effect will be described for the case where the particle discharge unit 4 is under negative pressure. FIG. 3 shows the pressure and reaction gas state of the continuous rocking particle surface treatment apparatus according to the first embodiment of the present invention. In the present invention, as shown in FIG. 1A, a reaction gas is supplied into the reaction channel 1 by the reaction gas generator 5 and discharged and collected from the reaction channel 1. However, at the same time, the supply and discharge of the particles 30 proceed continuously by the particle supply unit 3 and the particle discharge unit 4. In FIG. 3, a plurality of semicircular arc-shaped reaction channels 1 are schematically illustrated as straight pipes. First, in the particle supply unit 3, even when the particles 30 are in the close-packed state, there is always a gap between the particles 30 and the gas 30 exists, and gas is present there, and it is assumed that an external gas flows in when supplying the particles. The However, as described with reference to FIG. 2A, in the vicinity of the particle supply unit 3, the concentration of the reactive gas is reduced due to the counterflow effect, and the amount of unreacted gas that should not leak to the outside is reduced. In addition, since the reaction channel 1 has a negative pressure, the reaction gas hardly leaks to the outside. Conversely, even if an external gas is mixed and mixed with a low concentration reaction gas, the influence on the concentration is small. The reaction gas is recovered into the reaction gas generator 5 at the reaction channel first inlet 1aa. The particle discharge unit 4 discharges the particles 30 in accordance with the swing timing. Since the inside of the reaction channel 1 here has a negative pressure, a high-concentration reaction gas at the reaction channel final outlet 1bb is externally generated. There is no possibility of leaking. Thus, the merit of the negative pressure inside the reaction channel 1 is great.

  4A to 4D show Example 1 of the reaction channel 1 in the continuous rocking particle surface treatment apparatus in the first embodiment of the present invention. It is a figure which shows the drive device for rocking | fluctuation of a continuous rocking | swiveling type particle | grain surface processing apparatus. In addition, description and a figure are abbreviate | omitted about the other structure same as FIG. 1A.

  In FIG. 4A, a semi-annular cylindrical member 10 containing a plurality of reaction flow paths 1 is connected and arranged, and a motor 8 whose rotating shaft rotates forward and backward, and a cam structure 9 connected to the rotating shaft of the motor 8, The structure which rocks | swivels all the semi-annular cylinder members 10 all at once is shown. Therefore, all the reaction flow paths 1 are installed along the swing drive shaft 100. In FIG. 4B and FIG. 4C, the concrete figure of the reaction flow path 1 which provided the non-return tube 2 is shown. Here, three stirring blades 7 are incorporated, but the structure of the mixing member 6 described in FIG. 1E is not the target structure at the angle θ described in FIG. 1H of the first embodiment. Similarly, the configuration assumes a case where the particles 30 are transported only in one direction in each reaction channel 1. That is, a plurality of swings at ± 80 degrees in each reaction channel 1 are not executed, and each reaction channel 1 is always processed with a swing of ± 90 degrees. As shown in FIG. 4B, in the stirring blade 7, the slope 7c on the rear side of the particle 30 is steeper than the slope 7d before passing (for example, the slope 7c, the slope 7d, and the bottom surface of the reaction channel 1). It is generally configured in a right triangle shape), and the effect of non-returning the passing particles 30 and the effect of falling in a waterfall shape are enhanced. 4C and 4D, the check tube 2 has a simple structure in which a simple straight tube is provided and connected to the opening of the adjacent reaction channel 1. As a result, the plurality of semicircular arc-shaped reaction channels 1 are fixed on the same swinging drive shaft 100 with their central axes slightly flattened, but the effects are exactly the same.

Further, as shown in FIG. 4B, the particle discharge pipe 4 is also a simple straight pipe like the check pipe 2.
Here, continuous swing is realized by the motor 8 and the cam structure 9, but the present invention is not limited to this. For example, by connecting a drive unit that expands and contracts due to pressure, such as a pneumatic arm, to the reaction flow path 1, it is possible to easily reciprocate and smoothly realize the swing.

  It is to be noted that, by appropriately combining any of the various embodiments, the effects possessed by them can be produced.

  The continuous oscillating particle surface treatment apparatus according to the present invention blows a reaction gas that moves in the opposite direction to the movement of particles while moving particles by oscillating a plurality of semicircular arc reaction channels. It is configured to contact, and since there is no rotating part, leakage at the time of supply and discharge of the reaction gas can be prevented, and the particle and the reaction gas are brought into contact while continuously supplying, moving, and discharging the particle. Thus, a uniform surface treatment can be performed on the particles. As a result, it is useful as a processing apparatus capable of continuously producing a highly efficient and high quality particle surface.

1 reaction channel 1a reaction channel inlet 1b reaction channel outlet 1aa reaction channel first inlet 1bb reaction channel final outlet 1d bottom surface 1X reaction channel 1Y in particle supply unit reaction channel 2 in particle discharge unit 2 check tube 3 particles Supply section 4 Particle discharge section 5 Reaction gas generator 5a Gas supply pipe 5b Gas discharge pipe 6 Mixing member 6a Through port 7 Stirring blade 7A Movable stirring blade 8 Motor 9 Cam structure 10 Semi-annular cylindrical member 11 Inclined plate 11a Slit 13 Flat plate 14 Hinge 15 Stopper 30 Particle 40 Common axis of arc center of reaction channel

Claims (8)

A swing drive shaft for swing drive;
A reaction flow path composed of arc-shaped first flow paths and second flow paths that are alternately arranged in a staggered manner along the axial direction of the swing drive shaft;
A particle supply unit for supplying particles that are a reaction target to one end of the first flow path;
A reaction gas supply unit for supplying a reaction gas to the reaction channel;
A first check tube connecting the other end of the first flow path and one end of the second flow path;
By swinging the swing drive shaft and swinging the reaction flow path, the particles supplied from the particle supply section are allowed to flow into the first flow path, the first check tube, and the second flow path. A continuous oscillating particle surface treatment apparatus that reacts with the reaction gas while moving in order with a path.   2. The continuous oscillating particle surface treatment apparatus according to claim 1, wherein the reaction gas is supplied from the other end of the second channel toward the one end of the first channel.   The continuous oscillating particle according to claim 1 or 2, wherein the first channel and the second channel are arranged in substantially the same arc shape and in substantially the same phase, and oscillate integrally. Surface treatment equipment.   The continuous rocking-type particle according to any one of claims 1 to 3, further comprising a mixing member that protrudes into the reaction channel and promotes mixing of the particle and the reaction gas. Surface treatment equipment. A stirring blade capable of swinging the particles in the reaction channel;
The continuous rocking particle surface treatment apparatus according to claim 4, wherein the particles are swung a plurality of times in each of the reaction flow paths by the stirring blade.   The continuous-type oscillating particle surface treatment apparatus according to any one of claims 1 to 5, wherein the reaction gas supply unit is operated so that the inside of the reaction channel has a negative pressure.   The continuous rocking-type particle surface treatment apparatus according to any one of claims 1 to 6, wherein a chlorosilane-based compound is gasified and used as the reaction gas.   The continuous oscillating particle surface treatment apparatus according to claim 1, wherein the particles are sand.

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