JP2008142668A - Degassing implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a degassing implement which is attached to a bag filled with asbestos and discharges air in the bag alone, without any leakage of the harmful scattering asbestos, so as to reduce the volume of the bag. <P>SOLUTION: The degassing implement 1 consists of a hollow cylindrical piercing section 22 which has a pinnacle-shaped tip 28, an opening 25 at the end and a hole 27 in the side surface and a plate section 11 to be attached to the end of the piercing section 22. A filter member 13 consisting of an HEPA filter is arranged between the body member 11 and the cover member 12. When the degassing implement 1 is attached to a bag filled with asbestos and the bag is pressed, air containing the scattering asbestos is filtered with the filter member 13, allowing the air in the bag alone to be discharged without any leakage of the harmful scattering asbestos in order to reduce the volume of the bag. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a deaerator used to attach to a bag packed with asbestos and deaerate and compress the bag packed with asbestos.

  Asbestos is a natural mineral fiber with excellent properties such as heat resistance, chemical resistance and insulation. For this reason, asbestos has been used for many years in a wide range of fields such as construction materials, electrical products, automobiles and household goods. However, a causal relationship between asbestos and disease has been pointed out. In other words, scattering asbestos is a very fine fiber, and if a person inhales the dust of asbestos, there is a risk of causing serious diseases such as asbestosis, lung cancer, and malignant mesothelioma.

  Therefore, a total ban on asbestos, a building material, has been issued, and asbestos removal work is underway in buildings where asbestos has been used. At present, asbestos is designated as a specially controlled hazardous industrial waste, and when it is peeled off and removed from the inner wall of a building sprayed for fire prevention, etc., it is sealed in a double bag and carefully controlled and scattered around. So that it is landfilled in a separate final disposal site. In the usual method, workers wear protective clothing in consideration of health risks, and the stripped asbestos pieces are manually sealed and sealed. The main purpose of the work in the dangerous space that has been temporarily partitioned is to remove the asbestos and make it harmless. At the same time, it is absolutely necessary to prevent contamination of the surrounding area. It is not allowed to open.

In addition, in order to process such asbestos, as shown, for example in patent document 1, the method of detoxifying and processing asbestos is proposed.
JP 2005-279589 A

  As described above, in the conventional asbestos removal operation, the stripped asbestos piece is manually packed and sealed. However, the asbestos sealed bag pushed by human power contains a lot of air, and its volume increases. This makes it difficult to transport to a treatment plant, consumes a lot of valuable landfill space, and increases the landfill disposal fee in proportion to the volume.

  In view of the above-mentioned problems, the present invention attaches to a bag filled with asbestos and discharges the air in the bag without leaking any scattered asbestos to the outside, so that the volume of the bag can be reduced. The purpose is to provide care.

  In order to solve the above-mentioned problems, the present invention is a deaeration tool for deaeration and compression of a bag packed with asbestos and degassing and compressing the bag packed with asbestos, and the tip is formed in a spire shape. A hollow cylindrical piercing portion having an opening in the end portion and a hole in the side surface, a dish-like portion attached to the end portion of the piercing portion, a check valve disposed in the opening portion, and an air port on the upper surface And a cover member that covers the dish-shaped part, and a filter member disposed between the dish-shaped part and the cover member.

  Preferably, the air port on the upper surface of the cover member is a plurality of slits communicating with the side edge of the cover member.

  Preferably, an adhesive layer is formed on the back surface of the dish-shaped portion. Preferably, the hole on the side surface of the piercing portion is a slit. Preferably, the shape of the upper surface of the cover member is a convex shape.

  Preferably, a protective cover for covering the piercing portion is provided. Moreover, the protective cover which covers a piercing part has attached the release paper to the surface adhering to the adhesive layer of a plate-shaped part, It is characterized by the above-mentioned.

  The present invention is a deaeration tool for deaeration and compression of a bag packed with asbestos, degassing and compressing the bag packed with asbestos, the tip is formed in a spire shape, and has an opening at the end, A hollow cylindrical piercing portion having a hole on the side surface, a dish-like portion attached to the end portion of the piercing portion, a check valve arranged at the opening, and a cover having an air port on the upper surface and covering the dish-like portion A member and a filter member disposed between the dish-like portion and the cover member are provided. For this reason, it is possible to reduce the volume of the bag by discharging only the air in the bag without leaking any scattering asbestos to the outside.

  Further, according to the present invention, preferably, the air port on the upper surface of the cover member is a plurality of slits communicating with the side edge of the cover member, so that even if the air port is blocked by a press machine, the air port is removed through the slit. I can mind.

  Moreover, according to this invention, since the contact bonding layer was formed in the back surface of a plate-shaped part, a deaeration tool closely_contact | adheres to a bag and the air in a bag does not leak. Moreover, since the hole on the side surface of the piercing portion is a slit, the air extraction efficiency is good. In addition, by making the shape of the upper surface of the cover member convex, it is possible to deaerate through the slit even if the air port is blocked by the press.

  In addition, according to the present invention, since the protective cover that covers the piercing portion is provided, the piercing portion having the spire-shaped tip portion is not exposed to the outside during work, and safety is improved. In addition, by attaching the release paper to the protective cover that covers the pierced portion, the release paper is attached to the surface of the dish-like portion that adheres to the adhesive layer. Can be prevented.

First embodiment.
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a perspective view of a deaerator 1 according to an embodiment of the present invention, FIG. 2 shows a cross-sectional view of the deaerator 1 cut along the line AA in FIG. 1, and FIG. FIG. 2 is a plan view of the airing tool 1. As shown in FIGS. 1 to 3, the deaerator 1 according to the first embodiment of the present invention has a configuration in which a filter member 13 is disposed on the inner side between a main body member 11 and a cover member 12.

  As shown in FIG. 1, the deaerator 1 includes a dish-like portion 11, a piercing portion 22, and a cover member 12. The dish-like portion 11 and the piercing portion 22 may be integrally formed of synthetic resin or metal, or may be separately manufactured and joined later. The dish-like portion 11 is circular, and an opening 25 is formed at the center thereof as shown in FIG. A flap type check valve 26 is attached to the opening 25.

  As shown in FIGS. 1 and 2, the piercing portion 22 has a hollow cylindrical shape and communicates with the opening 25. The tip portion 28 of the piercing portion 22 is formed in a spire shape. A plurality of slits 27 are formed on the side surface of the piercing portion 22. An adhesive layer 41 to which an adhesive is applied is provided on the back surface of the dish-like portion 11. A release paper 43 is attached on the adhesive layer 41.

  The cover member 12 is a member that covers the upper side of the dish-like portion 11, and is formed of synthetic resin or metal. As shown in FIGS. 1 to 3, a plurality of slits 31 are formed in the cover member 12. The slit 31 serves as an air outlet when the air is extracted from the bag filled with asbestos. The slit 31 communicates with the side edge of the cover member 12. As shown in FIG. 2, the filter member 13 is attached between the cover member 12 and the dish-like portion 11 so as to cover the slit 31.

  The filter member 13 is made of a member constituting a HEPA filter (High Efficiency Particulate Air Filter), and removes dust, dust and the like from the air. As the filter member 13, a filter member having a sufficient particle collection rate for particles having a particle size of several μm and capable of reliably blocking scattering asbestos particles is used.

  Thus, in the deaerator 1 according to the first embodiment of the present invention, the dish-shaped part 11 and the cover member 12 are coupled so that the filter member 13 is disposed between the dish-shaped part 11 and the cover member 12. . As shown in FIG. 4, the deaerator 1 according to the present invention is used to pierce the deaerator 1 into a bag 42 filled with asbestos and perform deaeration and compression of the bag 42.

  In FIG. 4, the bag 42 is a strong vinyl bag, and the bag 42 is filled with asbestos. After the bag 42 is sealed, the deaerator 1 according to the first embodiment of the present invention is pierced and attached to the bag 42. Thereafter, by pressing the bag 42, only the air in the bag 42 is extracted without discharging the asbestos out of the bag 42, and the bag 42 can be deaerated and compressed.

  FIG. 5 is a view showing a state when the deaerator 1 according to the first embodiment of the present invention is attached to the bag 42. The tip portion 28 of the piercing portion 22 is formed in a spire shape. For this reason, when the front-end | tip part of the deaeration tool 1 is pressed against the bag 42, the front-end | tip part 28 will pierce the bag 42 and the piercing part 22 will enter in the bag 42. FIG. An adhesive layer 41 is provided on the back side of the dish-like portion 11. For this reason, when the release paper 43 is peeled off and the front end portion 28 is pressed against the bag 42, the back surface of the dish-like portion 11 is bonded to the bag 42, and the deaerator 1 is fixed to the bag 42.

  When the bag 42 is pressed in this state, the air in the bag 42 enters the piercing portion 22 through the slit 27 on the side surface of the piercing portion 22 and passes through the piercing portion 22 as indicated by an arrow A1 in FIG. Going to the opening 25 at the center of the dish-like portion 11, pushes up the check valve 26 and reaches the gap 40. A filter member 13 is disposed above the gap 40. For this reason, the air in the gap 40 is filtered by the filter member 13 and discharged from the slit 31 of the cover member 12 to the outside as indicated by the arrow B1.

  When asbestos is packed in the bag 42, the air in the bag 42 contains scattering asbestos. When the bag 42 is pressed, the air containing the scattering asbestos enters the gap 40 from the side surface of the piercing portion 22 through the piercing portion 22. However, the air in the gap 40 is filtered by the filter member 13. For this reason, as shown by the arrow B1, the air discharged from the slit 31 of the cover member 12 to the outside does not include scattering asbestos.

  Moreover, in the deaeration tool 1 according to the first embodiment of the present invention, the adhesive layer 41 is provided on the back surface of the dish-shaped part 11, and the dish-shaped part 11 is adhered to the bag 42 so that airtightness is maintained. For this reason, air containing asbestos does not leak from the portion of the adhesive layer 41 where the deaerator 1 is attached to the bag 42.

  In the deaeration tool 1 according to the first embodiment of the present invention, a check valve 26 is provided. The check valve 26 prevents the air from flowing back into the bag 42 when air is extracted from the bag 42. That is, when the check valve 26 is not provided, after the bag 42 filled with asbestos is deaerated and compressed, the bag 42 is inflated by the restoring force of asbestos, and air enters the bag 42 from the deaerator 1. There is. However, by providing the check valve 26, air can be prevented from entering the bag 42 from the deaerator 1.

  In the first embodiment of the present invention, the air port of the cover member 12 is formed by a plurality of slits 31 that communicate with the side edges of the cover member 12. As will be described later, this is to secure an air flow passage even if the air port of the deaerator 1 is blocked by the pressing of the inner surface of the press. That is, if the plurality of slits 31 are communicated to the side edge of the cover member 12, as shown in FIG. 6, even if the air port of the deaerator 1 is blocked by pressing the inner surface of the press machine, the arrow C1 As shown, air can be discharged to the outside through the slit 31.

  Note that the overall size of the deaerator 1 and the size of the slit 31 as the air port are determined based on the filtration speed of the filter member 13 and the air flow velocity in the air flow path, so as not to increase the internal pressure of the bag. To prevent rupture of the bag. Moreover, the material and area of the adhesive applied to the adhesive layer 41 are determined so that an adhesive force equivalent to the strength of the bag can be obtained.

Second embodiment.
FIG. 7 shows a second embodiment of the present invention. In the first embodiment described above, the dish-shaped portion 11 and the cover member 12 are circular, but in this embodiment, the dish-shaped portion 11 and the cover member 12 are rectangular. About another structure, it is the same as that of the above-mentioned 1st Embodiment.

  In the case where the dish-like portion 11 and the cover member 12 are circular, there is an advantage that the bag 42 is not damaged because there are no corners. However, when the circular dish-shaped portion 11 and the cover member 12 are circular, the filter member 12 is also circular, which is difficult to process, and waste of materials is likely to occur. When the dish-like portion 11 and the cover member 12 are rectangular as in this embodiment, the shape of the HEPA filter member 13 disposed therein is also square correspondingly. For this reason, processing is easy and it is hard to produce a waste of material. If the corners are chamfered, it is possible to avoid damaging the bag.

Third embodiment.
8 (A) and 8 (B) show a third embodiment of the present invention. In this embodiment, the dish-like portion 11 and the cover member 12 are rectangular, and the upper surface of the cover member 12 is convex. As described above, when the upper surface of the cover member 12 is convex, a thick filter member 13 can be used, and the filter effect can be enhanced. Even if the air port of the air tool 1 is pressed against the inner surface of the press, the air port is not blocked. As described above, when the upper surface of the cover member 12 has a convex shape, the shape of the air port may be any shape. For example, a plurality of circular holes 45 may be used as shown in FIG.

Fourth embodiment.
9 and 10 show a fourth embodiment of the present invention. In this embodiment, a safety cover 51 is attached to the deaerator 1. In FIG. 9, the safety cover 51 is a cover having a shape that covers the piercing portion 22 of the deaerator 1, and a flange portion 52 is formed at the bottom thereof, and a release paper 53 is bonded onto the flange portion 52. FIG. 10 is a diagram showing a specific structure of the collar portion 52 and the release paper 53. In FIG. 10, the safety cover 51 is initially attached to the deaerator 1, but when the safety cover 51 is removed from the deaerator 1, the release paper 53 is detached together with the safety cover 51, and only the adhesive layer 41 is deaerated. Since it remains adhered to the tool 1, the release paper 53 does not remain after the safety cover 51 is removed.

  In the deaeration tool 1 described above, the tip portion 28 of the piercing portion 22 is formed in a spire shape. Therefore, the bag filled with asbestos may be damaged during the work, or the tip portion 28 of the piercing portion 22 may There is a risk of injury. Therefore, a safety cover 51 as shown in FIG. 9 is provided, and the safety cover 51 is attached to the piercing portion 22 of the deaerator 1 when transporting or not in use. As a result, the piercing portion 22 with the sharp tip 28 is not exposed to the outside during work, and safety is improved.

  Further, as described above, the adhesive layer 41 is provided on the back side of the dish-like portion 11. In the first embodiment described above, when attaching the deaerator 1 to the bag, it is necessary to peel off the release paper 43. Forgetting to peel off the release paper 43, the front end 28 of the deaerator 1 is removed. If the bag is stabbed, asbestos may leak from the bag.

  In contrast, in this embodiment, the release paper 53 is attached to the surface of the collar portion 52 of the safety cover 51, and when the safety cover 51 is removed, the release paper 53 is peeled off at the same time. The mistake of forgetting to peel off the upper release paper can be prevented.

Fifth embodiment.
FIG. 11 is a view showing a check valve according to a fifth embodiment of the present invention. In the first embodiment described above, a flap type was used as the check valve 26, whereas in the fifth embodiment, a diaphragm type check valve 60 was used. About another structure, it is the same as that of the above-mentioned 1st Embodiment.

Sixth embodiment.
FIG. 12 is a view showing a check valve according to the sixth embodiment of the present invention. The check valve according to this embodiment includes a ball 61 and a leaf spring 62. Other configurations are the same as those of the first embodiment described above, and thus detailed description thereof is omitted. In this check valve structure, the ball 61 is lifted only when the bag 42 is pressed, and the air is pushed out. In other cases, the ball 61 is pushed by the leaf spring 62. Mouth does not leak.

Seventh embodiment.
FIG. 13 is a view showing a check valve according to a seventh embodiment of the present invention. The check valve of this embodiment includes a tapered plug 63 and a spring 64. About another structure, it is the same as that of the above-mentioned 1st Embodiment. Since the operation of the spring 64 and the taper plug 63 in this structure is the same as the operation of the ball 61 and the leaf spring 62 of the sixth embodiment, detailed description thereof is omitted.

Asbestos removal work.
Next, the asbestos processing method using the deaerator 1 of the present invention will be described.

  FIG. 14 shows a working environment for asbestos treatment using the deaerator 1 of the present invention. In FIG. 14, a removal work space 101 is a space for performing the work of removing the scattering asbestos blown to the building, and is at a high contamination level with respect to asbestos. In the removal work space 101, only the worker 110 wearing protective clothing is allowed to enter. The removal work space 101 is strictly partitioned from the outside so that asbestos is not scattered outside. The removal work space 101 is ventilated through the HEPA filter 102, and the inside of the removal work space 101 is ventilated without discharging the scattering asbestos in the removal work space 101 to the outside.

  The worker 110 performs the removal work of the scattering asbestos blown to the building in the removal work space 101, and packs the peeled asbestos into the bag 42 and seals it. A strong vinyl bag is used as a bag for asbestos. When the worker 110 packs the asbestos in the bag 42, the worker 110 cleans the outer surface of the bag 42 packed with asbestos and moves the packed asbestos to the front chamber 103 so that the contamination does not spread.

  The front chamber 103 is a space provided between the outside and the removal work space 101. The anterior chamber 103 is at a low contamination level for asbestos. In the front chamber 103, the worker 111 performs work. The worker 111 wears protective clothes that are not contaminated. A press machine 106 is installed in the front chamber 103.

  When the worker in the front chamber 103 receives the bag 42 filled with asbestos, the deaerator 1 of the present invention is attached to the bag 42. Then, as shown in FIG. 15, the press machine 106 degasses and compresses the bag 42 filled with asbestos.

  The press machine 106 is a dedicated press machine for degassing and compressing the bag 42 to which the degassing tool 1 of the present invention is attached and packed with asbestos, and is designed so that the bag is not damaged during pressing. . In addition, by devising the structure of the press machine 106, controlling the speed of the press time, and using ultrasonic waves and vibrators as appropriate, degassing and compression can be performed safely and efficiently without breaking the bag. I can do it. Instead of using the press machine 106, the deaerator 1 may be attached to the bag 42 packed with asbestos, and the bag 42 may be pushed by hand to perform deaeration compression.

  As described above, when the deaerator 1 of the present invention is attached to the bag 42 packed with asbestos, the bag 42 packed with asbestos can be deaerated and compressed without discharging the scattering asbestos.

  After degassing and compressing the bag 42 filled with asbestos, the worker 111 in the front chamber 103 confirms that the bag was not damaged in the pressing process. Put in and seal. Then, about 2-3 bags 42 packed with compression-molded asbestos are put together in a strong vinyl bag 45 and sealed, transported to an external treatment plant 108, and these vinyl bags 45 are put in the treatment plant 108. Collectively solidify by adding hardener.

  As an operation at the external treatment plant 108, for example, while the air is evacuated with a vacuum pump or the like, the bag 42 is compressed so as not to be broken to reduce the void volume in the asbestos, and then the bag 42 is decompressed. Add a hardener liquid such as cement milk with a syringe, etc., seal the needle hole with adhesive tape, and further compress and reduce the pressure with higher pressure while dispersing the hardener evenly with ultrasonic waves and vibrators, and add hardener As a result, the asbestos in the bag 42 is solidified. In this way, asbestos is kept in a sealed bag, minimizing the risk of re-scattering, and it becomes a solidified substance that can be handled as non-scattering asbestos waste, including traffic accidents during transportation, The risk of asbestos scattering from the disposal site is greatly reduced.

  In addition, when transporting a bag filled with asbestos as in the prior art, if it is not deaerated and compressed, it becomes a fluffy sealed bag with many voids and no compression strength. For this reason, it is easy to burst due to external force during transportation, landfill work or after landfill, and there is a risk of harmful substances leaking into the environment.

  On the other hand, the bag 42 deaerated and compressed by attaching the deaerator 1 of the present invention becomes a hard lump, is not easily displaced, and the internal pressure does not increase even if it receives further compressive force in the soil and bursts. There is no worry to do.

  In the above example, the deaeration tool 1 of the present invention is attached to the bag in the front chamber 103 and is deaerated and compressed by the press machine 106. However, this operation is performed in the external treatment plant 108. May be.

  In other words, at the asbestos removal work site, asbestos that has been pushed by hand into a strong vinyl bag is sealed as before, and then sealed again in a bag, which is then transported in a double bag containing a lot of air. To do.

  At the final disposal site or transportation relay base, as shown in FIG. 16 (A), the deaerator 1 of the present invention is attached to all asbestos-containing bags 42, and dozens of them are flexible with a volume of 1 square meter or more. It puts in the container pack 44, compresses from the top, and performs air bleeding collectively. When the volume is reduced and a space is created on the upper surface of the flexible container pack 44, asbestos-filled bags are again inserted and compression is repeated as shown in FIG. Thus, by repeating compression many times, it becomes a lump of asbestos-containing bags as shown in FIG.

  As described above, when the degassing tool 1 of the present invention is attached to the bag 42 filled with asbestos, only the air in the bag 42 is discharged without discharging the scattering asbestos, and the bag 42 is degassed. Can be compressed.

  The present invention is not limited to the above-described embodiments, and various modifications and applications can be made without departing from the gist of the present invention.

  The present invention is attached to a bag filled with asbestos and used for deaeration and compression of a bag filled with asbestos, and can be used for deaeration and compression of a bag containing a spillable material.

It is a perspective view of the deaeration tool of a 1st embodiment of the present invention. It is sectional drawing of the deaeration tool of 1st Embodiment of this invention. It is a top view of the deaeration tool of a 1st embodiment of the present invention. It is explanatory drawing of the usage method of the deaeration tool of 1st Embodiment of this invention. It is explanatory drawing of the deaeration operation | movement of the deaeration tool of 1st Embodiment of this invention. It is explanatory drawing of the function of the slit in the deaeration tool of 1st Embodiment of this invention. It is a perspective view of the deaeration tool of 2nd Embodiment of this invention. It is the top view and side view of the deaeration tool of 3rd Embodiment of this invention. It is sectional drawing of the deaeration tool of 4th Embodiment of this invention. It is a perspective view of the protective cover in the deaeration tool of 4th Embodiment of this invention. It is explanatory drawing of the non-return valve in the deaeration tool of 5th Embodiment of this invention. It is explanatory drawing of the non-return valve in the deaeration tool of 6th Embodiment of this invention. It is explanatory drawing of the non-return valve in the deaeration tool of 7th Embodiment of this invention. It is explanatory drawing of the removal operation | work of asbestos using the deaeration tool of this invention. It is explanatory drawing of the press in the removal operation | work of asbestos using the deaeration tool of this invention. It is explanatory drawing of the press process in the processing place in the removal operation | work of asbestos using the deaeration tool of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Deaerator 11 Dish-shaped part 12 Cover member 13 Filter member 22 Puncture part 25 Opening 26 Check valve 27 Slit 28 Tip part 31 Slit 40 Gap 41 Adhesive layer 42 Bag 43 Release paper 44 Flexible container pack 45 Vinyl bag 51 Safety cover 52 Hook 53 Release Sheet 60 Diaphragm Check Valve 61 Ball 62 Plate Spring 63 Taper Plug 64 Spring 101 Removal Work Space 102 HEPA Filter 103 Front Chamber 106 Press Machine 107 Press Plate 108 Processing Field

Claims (7)

A deaerator for attaching to a bag packed with asbestos and degassing and compressing the bag packed with asbestos,
A hollow cylindrical piercing portion having a tip portion formed in a spire shape, an opening at a terminal portion, and a hole on a side surface;
A dish-like portion attached to the end of the piercing portion;
A check valve disposed in the opening;
A cover member having an air opening on the upper surface and covering the dish-shaped portion;
A deaerator having a filter member disposed between the dish-like portion and the cover member.   The deaerator according to claim 1, wherein the air port on the upper surface of the cover member is a plurality of slits communicating with a side edge of the cover member.   The deaerator according to claim 1, wherein an adhesive layer is formed on the back surface of the dish-shaped part.   The deaerator according to claim 1, wherein the hole on the side surface of the piercing portion is a slit.   The deaerator according to claim 1, wherein the shape of the upper surface of the cover member is a convex shape.   The deaerator according to claim 1, further comprising a protective cover that covers the piercing portion. The deaerator according to claim 6, wherein the protective cover that covers the pierced portion has a release paper attached to a surface that adheres to the adhesive layer of the dish-shaped portion.

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