JP2016002525A - Recycling facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recycling facility capable of putting in a deliverable state as a recycling product, by completely removing a toxic substance from a processed product.SOLUTION: A recycling facility comprises a treatment chamber 10 for removing a toxic substance from a processed product 3, a relay space 20 connected to the treatment chamber 10 and a cleaning chamber 30 connected to the relay space 20, and opening-closing means capable of holding a high airtight state is provided in a partition part between the treatment chamber 10 and the relay space 20, and a negative pressure dust collector 11 is provided in the treatment chamber 10, and a cleaning chamber 30 is provided with a finishing-cleaning device 31 for finishing-cleaning the processed product in which the toxic substance has been removed.

Description

  The present invention relates to a recycling facility for removing and cleaning harmful substances from an object to be treated.

  Asbestos (asbestos) has been widely used as a heat insulating material for buildings because it has excellent heat resistance and wear resistance, is inexpensive and easy to process. However, asbestos dust has been found to be a health hazard. Therefore, it is necessary to remove the member containing asbestos from the building. Moreover, it is necessary to prevent asbestos from scattering or leaking outside when the building is demolished.

  To remove asbestos-containing parts from the joints and piping elbows of ducts, separate the objects to be processed such as joints and piping elbows at the site, and place the separated objects in a transparent waste bag. Double-pack and seal with gum tape. The object to be processed packed in a waste bag is transported to a processing facility equipped with a processing chamber equipped with a negative pressure dust collector that collects dust, and the object to be processed is prevented from being scattered in the processing chamber. Asbestos has been removed from (see, for example, Patent Document 1).

JP 2012-225156 A

  In the above processing facility, harmful substances such as asbestos are removed from the object to be processed in the processing chamber in a negative pressure state, so that leakage of harmful substances and contaminated air to the outside of the processing chamber can be prevented, but the processing chamber is contaminated. It is an environment. Conventionally, since the object to be treated has been landfilled, there was no problem even if some harmful substances remained after being treated in a contaminated environment. However, in recent years, the object to be treated may be reused. It is required to completely remove harmful substances from the object.

  Therefore, the present invention has been devised to solve the above-described problem, and provides a recycling facility that can completely remove harmful substances from the object to be processed and make it available for reuse as a reused product. The task is to do.

  The invention according to claim 1 for solving the problem includes a processing chamber for removing harmful substances from an object to be processed, a relay space connected to the processing chamber, and a cleaning chamber connected to the relay space, Opening / closing means capable of maintaining a highly airtight state is provided in a partition portion of the connection portion between the processing chamber and the relay space, a negative pressure dust removing device is provided in the processing chamber, and the cleaning chamber is provided in the cleaning chamber. The recycling facility is characterized in that a finishing cleaning device is provided for finishing and cleaning the object to be processed from which the harmful substances have been removed.

  According to such a configuration, since the relay space is provided on the upstream side of the cleaning chamber and the opening / closing means capable of maintaining a highly airtight state is provided between the processing chamber and the relay space, the working environment of the cleaning chamber is reduced. Not contaminated. In addition, since the object to be processed is finished and cleaned in a cleaning chamber that is not a contaminated environment, harmful substances can be completely removed from the object to be processed so that the product can be shipped as a reused product.

  In the invention according to claim 2, a security zone for entering and leaving a worker is connected to the processing chamber, and the security zone includes a front chamber for a worker connected to the processing chamber, and a front chamber for the worker. A worker washing room connected to the chamber and a changing room connected to the worker washing room, and a partition portion between the processing chamber and the worker front chamber is capable of maintaining a high airtight state. Means are provided. According to such a configuration, the processing chamber and the outside can be surely partitioned, and harmful substances can be prevented from leaking out together with the worker.

  According to the recycling facility according to the present invention, it is possible to completely remove harmful substances from an object to be processed so that they can be shipped as recycled products.

It is the schematic plan view which showed the recycling facility which concerns on embodiment of this invention. (A) is the side view which showed the joint part of the taken-out duct, (b) is the side view which showed the state which accommodated the duct packing in the waste bag. (A) is the side view which showed the taken-out piping elbow, (b) is the side view which showed the state which accommodated the piping elbow in the waste bag.

  Next, the recycling facility which concerns on embodiment of this invention is demonstrated, referring an accompanying drawing. In the present embodiment, a case where the objects to be processed are a joint part of a duct and a pipe elbow will be described as an example. The harmful substance is, for example, an asbestos-containing heat insulating material sprayed on the surface of asbestos packing or piping elbow interposed in the joint portion.

  As shown in FIG. 1, the recycling facility 1 includes a processing chamber 10, a relay chamber (relay space) 20, a cleaning chamber 30, a drying chamber 40, an air shower chamber 50, and a security zone 60.

  The processing chamber 10 is a room for taking out the workpiece 3 from the waste bag 2 conveyed from the outside and removing harmful substances. The processing chamber 10 is partitioned into a highly airtight state. The processing chamber 10 is provided with a negative pressure dust removing device 11. The negative pressure dust removing device 11 includes a filter portion 11a, a duct portion 11b, and a suction device 11c. The filter unit 11a includes a HEPA filter and a charcoal filter. The duct portion 11b connects the filter portion 11a and the suction device. The negative pressure dust removing device 11 sucks and collects harmful substances scattered in the processing chamber 10 and keeps the processing chamber 10 in a negative pressure state. This prevents harmful substances in the processing chamber 10 from leaking outside.

  The processing chamber 10 is provided with a front chamber 12 for carrying in the waste bag 2. A door (not shown) capable of maintaining a highly airtight state is provided at a partition portion between the carry-in front chamber 12 and the processing chamber 10.

  The processing chamber 10 is mainly divided into a temporary waste storage space 13, a processing space 14, and an object storage space 15.

  The temporary waste storage space 13 is a space for storing the waste bag 2 containing the object to be processed 3 carried into the processing chamber 10 and the waste bag 2a containing the harmful substance removed from the object to be processed 3. . The waste bag 2 containing the object to be processed 3 and the waste bag 2a containing the harmful substance are stored separately. The temporary waste storage space is provided in the vicinity of the door of the carry-in front chamber 12.

  The treatment space 14 is a space for taking out the object 3 such as the duct joint 3a and the pipe elbow 3b from the waste bag 2 conveyed from the temporary waste storage space 13 and removing harmful substances such as asbestos. The removed harmful substance is accommodated in the disposal bag 2a and carried out to the disposal facility.

  The to-be-processed object storage space 15 is a space for storing the joint part 3a and the pipe elbow 3b of the duct from which harmful substances have been removed. The objects to be processed 3 such as the duct joint portion 3 a and the pipe elbow 3 b stored in the processed material storage space 15 are sequentially carried out to the cleaning chamber 30 via the relay chamber 20.

  The processing chamber 10 is provided with a pre-loading chamber 12. The carry-in front chamber 12 is used when a large machine or equipment is carried in. A large door or shutter (not shown) capable of maintaining a highly airtight state is provided in a partition portion between the carry-in front chamber 12 and the processing chamber 10.

  The relay chamber 20 is connected to the processing chamber 10. The relay chamber 20 is a room for preventing harmful substances scattered in the processing chamber 10 from leaking into the cleaning chamber 30. A door (not shown) capable of maintaining a highly airtight state is provided at a partition portion between the relay chamber 20 and the processing chamber 10. The processing object storage space of the processing chamber 10 is provided in the vicinity of the door of the relay chamber 20.

  The cleaning chamber 30 is a chamber for finishing and cleaning the workpiece 3 from which harmful substances have been removed. A door or a shutter is provided at a partition portion between the cleaning chamber 30 and the relay chamber 20. Instead of a door or a shutter, a comb-shaped vinyl curtain may be provided. A finishing cleaning device 31 is provided in the cleaning chamber 30. The finish cleaning device 31 includes, for example, a large sink 31a and an injection nozzle 31b. An operator sprays water on the joint portion 3a of the duct and the pipe elbow 3b using the spray nozzle 31b, and rinses away harmful substances remaining on the surface of the workpiece 3. The washed water after washing is filtered by a filtering device or cemented and discarded.

  The finishing cleaning device 31 is not limited to the above-described configuration, and may be one that does not include the spray nozzle 31b and is simply washed away with tap water. In addition to the water cleaning type finishing cleaning device 31, an air cleaning type finishing cleaning device for cleaning by jetting air may be provided. If the object to be processed 3 is less contaminated, drying in the drying chamber 40 can be omitted by performing final cleaning with an air cleaning type finishing cleaning device.

  The drying chamber 40 is a chamber for drying the workpiece 3 washed with water. A door or a shutter is provided at a partition portion between the drying chamber 40 and the cleaning chamber 30. Instead of a door or a shutter, a comb-shaped vinyl curtain may be provided. The drying chamber 40 is provided with a placement table 41 on which the objects to be processed 3 are placed side by side. On the mounting table 41, duct joint portions 3a and piping elbows 3b are arranged. Although not shown, a means for assisting drying, such as a blower fan, is provided on the side of the mounting table 41.

  The air shower room 50 is a room for spraying air onto the dried object 3 to be finally cleaned. By spraying air, dust on the surface of the object to be processed 3 is blown away so that it can be shipped as a reused product. A door or a shutter is provided at a partition portion between the air shower chamber 50 and the drying chamber 40. Instead of a door or a shutter, a comb-shaped vinyl curtain may be provided. A door or a shutter is provided at a partition portion between the air shower chamber 50 and the outside.

  A forklift can pass from the processing chamber 10 through the relay chamber 20, the cleaning chamber 30, the drying chamber 40, and the air shower chamber 50 to the outside. Moreover, passage in the opposite direction is also possible.

  The security zone 60 is a zone for workers to enter and leave the processing chamber 10. The security zone 60 includes a worker front room 61, a worker washing room 62, and a changing room 63.

  The front chamber 61 for workers is connected to the processing chamber 10. The front chamber 61 for workers is a room for preventing harmful substances scattered in the processing chamber 10 from leaking into the worker washing room 62. A door (not shown) capable of maintaining a highly airtight state is provided in a partition portion between the worker front chamber 61 and the processing chamber 10. In the worker's front room 61, an industrial waste trash box 64, a vacuum cleaner 65, and a foot wipe mat 66 are disposed for disposing of equipment with attached harmful substances such as protective clothing.

  The worker washing room 62 is a room in which a worker who has performed work performs an air shower to remove harmful substances attached to the body and clothes. An air shower is provided in the worker washing room 62. A door or a shutter is provided in a partition portion between the worker washing room 62 and the worker front chamber 61. Instead of a door or a shutter, a comb-shaped vinyl curtain may be provided.

  The changing room 63 is a room in which workers change into work clothes. A door or a shutter is provided at a partition between the changing room 63 and the worker washing room 62. Instead of a door or a shutter, a comb-shaped vinyl curtain may be provided. In the changing room 63, a foot cleaning mat 66, an industrial waste trash box 67, a storage box 68, a washing water tank 69 and a bucket 70 are installed. The industrial waste trash box 67 is for discarding the used mask filter. The storage box 68 is for storing used work clothes, protective equipment, and a mask. The cleaning water tank 69 stores cleaning water for cleaning the protective equipment. Wash water is put into the bucket 70 and the protective equipment is washed. The washed water after washing is filtered by a filtering device or cemented and discarded.

  A forklift can pass from the processing chamber 10 to the outside through the front chamber 61 for workers, the washing room 62 for workers, and the changing room 63. Moreover, passage in the opposite direction is also possible.

  Below, the process of recycling the to-be-processed object 3 using the said recycling facility 1 is demonstrated.

  As shown in FIG. 2 (a), the operation of taking out the duct joint 3a from the building is performed by curing the flange portion including the sbest packing P with the curing cloth tape 5, and from the both ends of the curing cloth tape. Cut the duct part using a saver saw at a position about 15 mm apart. The joint part 3a of the cut duct is accommodated in the double waste bag 2 as shown in FIG. The inner disposal bag 2 is a yellow bag with a notation of “asbestos attention” and is tightly bound by a binding band 6 or the like. The outer waste bag 2 is a transparent bag and is sealed with a binding band 6 or a gummed tape (closed with the binding band 6 in FIG. 2).

  As shown in FIG. 3 (a), the work of removing the pipe elbow 3b from the building is performed using a saver saw at a position about 10 to 15 mm apart from both ends of the asbestos-containing heat insulating material G in the elbow part. Cut the straight pipe part of the duct part. The end face of the asbestos-containing heat insulating material G is cured with a curing cloth tape 5. The cut pipe elbow 3b is accommodated in the double waste bag 2 as shown in FIG. The inner disposal bag 2 is a yellow bag with a notation of “asbestos attention” and is tightly bound by a binding band 6 or the like. The outer waste bag 2 is a transparent bag and is sealed with a binding band 6 or a gummed tape (closed with the binding band 6 in FIG. 3).

  The waste bag 2 containing the object to be processed 3 is transported to the recycling facility 1 by a collection transport vehicle or the like, and is transported from the pre-loading chamber 12 to the processing chamber 10. The loaded waste bag 2 is stored in the temporary waste storage space 13.

  The worker wears necessary equipment such as protective clothes, a dust mask, and protective equipment in the changing room 63 and passes through the worker washing room 62 and the worker front room 61 and enters the processing room 10. When entering the room, the air shower in the worker washing room 62 is not used.

  In the processing chamber 10, the waste bag 2 is moved to the processing space 14, the waste bag 2 is cut with a cutter or the like, and the workpiece 3 is taken out. Using a power tool, the object to be treated 3 (duct joint 3a, pipe elbow 3b, etc.) and harmful substances (asbestos, etc.) are separated. The separated harmful substance is stabilized or cement solidified and packed in the waste bag 2a. The waste bag 2a is temporarily stored in the temporary waste storage space 13, and then brought into a managed final disposal site or a melting treatment facility for disposal.

  The harmful substances scattered in the processing chamber 10 by the separation work are sucked by the negative pressure dust removing device 11. The sucked harmful substance is removed and collected by the filter unit 11a. Further, by keeping the inside of the processing chamber 10 in a negative pressure state, harmful substances in the processing chamber 10 are prevented from leaking outside.

  The to-be-processed object 3 from which harmful substances have been separated cannot be reused yet because it is contaminated in the processing chamber 10. Accordingly, the workpiece 3 is subjected to finish cleaning after being temporarily stored in the workpiece storage space 15.

  The workpiece 3 is transferred to the cleaning chamber 30 via the relay chamber 20. At this time, since it passes through the relay chamber 20, harmful substances scattered in the processing chamber 10 do not enter the cleaning chamber 30. Unlike the processing chamber 10, the cleaning chamber 30 is not a polluted environment because no harmful substances are scattered. In the cleaning chamber 30, the workpiece 3 is put into the sink 31a and washed with water by the spray nozzle 31b. The jetted water is appropriately treated. The cleaning method is not limited to spraying by the injection nozzle 31b, and may be washed with a brush or the like.

  When the washing with water is completed, the workpiece 3 is transferred to the drying chamber 40 and arranged on the mounting table 41. Here, the to-be-processed object 3 is dried, for example using a ventilation fan.

  When the workpiece 3 is dried, the workpiece 3 is transported to the air shower chamber 50 and air is sprayed onto the workpiece 3. As a result, fine dust and the like are removed, and the workpiece 3 can be shipped as a reused product.

  As described above, according to the recycling facility 1 according to the present embodiment, the object to be processed 3 is finished and cleaned in the cleaning chamber 40 that is not a contaminated environment, so that harmful substances can be completely removed from the object to be processed 3. Can do. Thereby, the to-be-processed object 3 can be shipped as a reuse item. Moreover, since harmful substances can be prevented from leaking out together with the object 3 to be treated, environmental degradation around the facility can be prevented.

  Furthermore, since the processing chamber 10 is provided with a security zone 60 for entering and leaving the worker, the processing chamber 10 and the outside can be reliably partitioned, and harmful substances can leak out together with the worker. Can be prevented.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not the meaning limited to the said embodiment, In the range which does not deviate from the meaning of this invention, it can change suitably. For example, in the said embodiment, the to-be-processed object is the joint part 3a of a duct, and the piping elbow 3b, Comprising: Asbestos packing P interposed by the joint part 3a was removed, or the asbestos sprayed on the surface of the piping elbow 3b Although the content heat insulating material G is removed, it is not limited to this. For example, it can of course be used as a facility for removing other harmful substances such as dioxin instead of asbestos from other members.

  In the embodiment, the relay space is partitioned from the cleaning chamber 30 and the relay chamber 20 is formed. However, the present invention is not limited to this. If the door of the relay chamber 20 and the cleaning place of the cleaning room 30 are separated from each other by a certain distance or more, harmful substances do not flow out to the cleaning place, so that the relay space and the cleaning place need not be provided. That is, the relay space may be arranged in a part of the cleaning chamber 30.

  In the above embodiment, the cleaning chamber 30 is provided with the water cleaning type finishing cleaning device 31 and the workpiece 3 is dried in the drying chamber 40. However, the finishing cleaning device of the cleaning chamber 30 is air-cleaning. In the case of only the type, the drying chamber may be omitted.

  Furthermore, in the said embodiment, although the drying chamber 40 and the air shower chamber 50 are provided separately, you may provide an air shower in the drying chamber 40, and may use it together.

DESCRIPTION OF SYMBOLS 1 Recycling facility 2 Waste bag 3 To-be-processed object 3a Duct joint part 3b Piping elbow 10 Processing chamber 11 Negative pressure dust removal device 20 Front chamber 30 Cleaning chamber 31 Finishing cleaning device 40 Drying chamber 50 Air shower chamber 60 Security zone 61 For workers Front room 62 Worker washing room 63 Changing room

Claims (2)

A treatment chamber for removing harmful substances from the workpiece, a relay space connected to the treatment chamber, and a cleaning chamber connected to the relay space;
The partition portion between the processing chamber and the relay space is provided with opening / closing means capable of maintaining a highly airtight state,
The processing chamber is provided with a negative pressure dust removal device,
The recycling facility, wherein the cleaning chamber is provided with a finishing cleaning device for finishing and cleaning the object to be processed from which the harmful substances have been removed. The processing chamber is connected to a security zone for workers to enter and leave,
The security zone includes a worker's front chamber connected to the processing chamber, a worker's washroom connected to the worker's front chamber, and a changing room connected to the worker washroom,
The recycling facility according to claim 1, wherein opening / closing means capable of maintaining a highly airtight state is provided in a partition portion between the processing chamber and the front chamber for the worker.

Images