JP2007303165A - Clean room for asbestos removing worker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clean room for an asbestos removing worker capable of preventing scattering of asbestos dust to the outside and removing asbestos safely. <P>SOLUTION: This clean room for the asbestos removing worker is constituted in such a way that the clean room forms and is divided into three rooms including an anterior chamber 11, a washing room 12, and a dressing room 13 and the asbestos removing worker changes his/her clothes into work clothes in the dressing room 13 before starting the work, wears personal protective equipment 27 for respiration, enters the anterior chamber 11 after the work, takes off his/her protective clothes 28 while wearing the personal protective equipment 27, shakes the asbestos adhered to the personal protective equipment 27 for respiration and the work clothes off by an air shower unit 9 in the washing room 12, takes off the personal protective equipment 27 in the dressing room 13, and goes out of the clean room. This clean room is composed of a skeleton A and a plastic-made bag-like room main body B formed like a bag by front and rear right and left wall sheet parts 1, 2, 3, 4, a roof sheet part 5, and a floor sheet part 6 and constituted by dividing a section between the front and rear wall sheet parts 1 and 2 into three rooms, namely, the anterior chamber 11, the washing room 12, and the dressing room 13. The bag-like room main body B is suspended in the skeleton A. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a clean room for an asbestos removal worker that is used by an operator who removes asbestos-containing spray material when dismantling and removing a building before and after the operation.

  Since asbestos fibers used as fireproof coverings and insulation for buildings have been found to have a fatal adverse effect on the human body, workers who have removed asbestos-containing sprays have been exposed to asbestos-containing sprays. Depending on the level of asbestos, the asbestos-containing spray material attached to the body should be removed, and face washing, washing or gargle equipment, changing equipment or washing equipment to prevent exposure shall be installed. However, the law obligates the establishment of a clean room as a security zone consisting of a changing room, washing room, and front room separated from the outside and the work place as a facility to prevent asbestos contamination and exposure, including washing facilities. ing.

  This clean room is divided into three chambers, the front room, the washing room, and the changing room, in order from the side close to the asbestos removal work place. An air shower unit is installed in the wash room, and the asbestos removal worker works. Change to work clothes in the changing room before starting, wear protective equipment for breathing, protective clothing and other protective gloves, work shoes, protective glasses, etc., enter the front room after work, and wear respiratory protective equipment Remove protective clothing and other protective equipment as it is, remove protective equipment for breathing, work clothes, underwear, and asbestos attached to the body with an air shower in the washing room, take off the protective equipment for breathing in the changing room, and take it outside. It comes out.

  As a conventional clean room, publicly known documents such as patent gazettes cannot be specifically mentioned, but as a clean room currently used, a flexible plastic sheet is wrapped around or pasted to a frame formed by assembling a steel pipe or the like While forming the front, back, left, and right wall surfaces and the roof surface portion, the front chamber, the washing chamber, and the changing room are formed between the front wall surface portion and the rear wall surface portion through the partition sheet portion. There is something to do.

  In the clean room as described above, the front room, the washing room, and the changing room are formed by wrapping or pasting a plastic sheet around the frame, and the front, back, left and right wall parts, the roof surface part, and the partition sheet part. Therefore, when disposing of the plastic sheet that forms the room body after using the clean room, it takes time to remove the sheet clean room from the frame, and asbestos dust does not scatter to the outside during the removal. It was necessary to perform the removal work carefully, and the removal work was very troublesome.

  Accordingly, the present invention provides an asbestos that can be easily removed and processed safely without the risk of scattering the asbestos dust inside the room body to the outside, while the used room body can be easily attached and detached from the frame. The purpose is to provide a clean room for removal workers.

  Means for solving the above problems will be described with reference numerals of the embodiments described later. The invention according to claim 1 is the front chamber 11, the cleaning chamber 12, and the changing clothes in order from the side closer to the asbestos removal work place. The chamber 13 is divided into three chambers, the air shower unit 9 is installed in the cleaning chamber 12, and the asbestos removal worker changes into work clothes in the changing room 13 before starting work, and the protective device 27 for breathing, protection Wearing the garment 28 and other protective equipment, entering the front chamber 11 after work, taking off the protective garment 28 and other protective equipment while wearing the respiratory protective equipment 27, and in the cleaning room 12, the respiratory protective equipment 27 A clean room for asbestos removal workers in which work clothes, underwear, and asbestos attached to the body are wiped off by the air shower unit 9 and the respirator 27 is removed in the changing room 13 to come out of the room, Formed by steel pipe etc. Frame A, and the front and rear left and right wall sheet parts 1, 2, 3, 4, roof sheet part 5 and floor sheet part 6 are formed in a bag shape and between front wall sheet part 1 and rear wall sheet part 2. Comprises a bag-like room body B made of a flexible plastic sheet that is divided into three chambers of a front chamber 11, a washing chamber 12 and a changing room 13 by two partition sheet portions 7 and 8. B is characterized in that the roof sheet portion 5 side is suspended from the framework A while the floor sheet portion 6 is grounded to the ground inside the framework A.

  According to a second aspect of the present invention, in the worker clean room according to the first aspect, the frame A is provided with a seat mounting ring 24 at a required position corresponding to the roof sheet portion 5 of the bag-shaped room main body B, and the bag-shaped room main body B Is characterized in that a suspension string 25 is attached to a required portion of the roof sheet portion 5 and each suspension string 25 is tied through a frame attachment ring 24 of a frame.

  Claim 3 is the clean room for the asbestos removal worker according to claim 1 or 2, wherein the frame A is a horizontal connecting the roof ridge 15, the support column 14, the jack base 18 attached to the lower end portion thereof, and the lower end portion thereof. The unit frame a is assembled so as to be disassembled with the connecting material 16, a plurality of unit frames a are juxtaposed at a required interval, and the columns 14 and 14 of the opposing unit frames a and a and the roof roofs 15 and 15 are vertically connected. It is characterized in that it is assembled so as to be separable by a material 17.

  The effects of the invention by the above solution will be described with reference numerals of embodiments described later. According to the clean room for asbestos removal workers of the invention according to claim 1, a skeleton A formed by a steel pipe and the like, The front and rear left and right wall sheet portions 1, 2, 3, 4, the roof sheet portion 5 and the floor sheet portion 6 are formed into a bag shape, and two partitions are provided between the front wall seat portion 1 and the rear wall seat portion 2. It consists of a bag-shaped room body B made of a flexible plastic sheet that is partitioned into three chambers, a front chamber 11, a cleaning chamber 12, and a changing room 13 by sheet portions 7 and 8. Since the roof sheet portion 5 side is suspended from the frame A while the floor sheet 6 is grounded to the ground inside the frame A, it is easy to attach and remove the bag-shaped room body B to the frame A. Use of bag-shaped room body B Later, when disposing of the bag-shaped room body B, the bag-shaped room body B may be removed from the frame A and folded and transported to a predetermined location. Asbestos dust inside the bag-shaped room body B is exposed to the outside. There is no risk of scattering, and it can be easily and safely removed and disposed of. Further, since the bag-shaped room body B is arranged inside the frame A, when the frame A is dismantled, there is no possibility of breaking through the bag-shaped room main body B with a steel pipe or the like forming the frame A. There is no risk of asbestos dust in the room body B leaking outside.

  As in the invention according to claim 2, the frame A is provided with a sheet attachment ring 24 at a required position corresponding to the roof sheet portion 5 of the bag-shaped room body B, and the bag-shaped room body B has the roof sheet portion 5. Since the hanging straps 25 are attached to the required places and the respective hanging straps 25 are passed through the frame seat attachment ring 24 and tied, the attaching operation and the removing operation of the bag-shaped room body B with respect to the roof portion side of the framework A are performed. It can be done easily and quickly.

  According to the invention according to claim 3, the unit frame a is assembled so as to be disassembled by the roof fence 15, the support column 14, the jack base 18 and the horizontal connecting member 16, and a plurality of the unit frames a are juxtaposed at a predetermined interval to face each other. Since the frame A is assembled by detachably connecting the columns 14 and 14 of the unit frames a and a and the roof roofs 15 and 15 with the vertical connecting material 17, the assembling operation and disassembly of the frame A are performed. Work can be done easily and quickly.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an entire clean room CR for an asbestos removal worker according to the present invention, and FIG. 2 is a perspective view showing only a framework A of the clean room CR. FIGS. 3 and 3 are perspective views showing only the bag-shaped room body B of the clean room CR until it is in use. This clean room CR is formed in a bag shape comprising a frame A assembled with steel pipes, front and rear wall sheets 1, 2, 3, 4, roof sheet 5 and floor sheet 6, and the front wall It is made of a flexible plastic sheet that is divided into three chambers 11 to 13 including a front chamber 11, a cleaning chamber 12, and a changing chamber 13 by two partition sheet portions 7 and 8 between the sheet portion 1 and the rear wall sheet portion 2. The bag-shaped room body B is configured such that the roof sheet part 5 is suspended from the frame A in a state where the floor sheet part 6 is grounded to the ground.

  The skeleton A forms a unit frame a by a mountain-shaped roof ridge 15, a column 14, a jack base 18 attached to the lower end of the column 14, and a horizontal connecting member 16 that connects the lower ends of the jack base 18, A plurality of unit frames a formed in this manner are juxtaposed at a required interval, and the columns 14 and 14 and the roof roofs 15 and 15 of the opposing unit frames a and a are connected to each other by a vertical connecting member 17 so as to be detachable. Thus, when the clean room CR is removed, the support columns 14, the roof ridges 15, the horizontal connecting members 16, and the vertical connecting members 17 can be separated from each other and individually disassembled. In addition, the support | pillar 14, the roof roof 15, and the vertical connecting material 17 are each formed with a steel pipe (steel pipe), and the horizontal connecting material 16 is formed with square steel.

  The jack base 18, the column 14, the roof roof 15, the horizontal connecting member 16 and the vertical connecting member 17 constituting the framework A will be described in more detail with reference to FIG. 6. As shown in FIG. Wedge receivers 29 are attached to the front and rear side surfaces of the left and right ends of each, the wedge receivers 30 are attached to the front and rear side surfaces of the lower ends of the columns 14, and the bottom surfaces of the both ends are connected to the vertical connecting member 17. On the side, a wedge piece 31 that engages with the wedge receivers 29 and 30 protrudes downward. The jack base 18 has a screw shaft 18b erected on a base plate 18a, and a column support 18c screwed to the screw shaft 18b. A substantially Z-shaped attachment piece 32 is fixed to the base plate 18a of the jack base 18 by welding, and the attachment piece 32 is formed of a rectangular connecting member 16 made of square steel as shown in FIG. 6 (b). The jack base 18 and the horizontal connecting member 16 can be connected by inserting into the end and fixing with the butterfly bolt 33 and the nut 34.

  Thus, in order to form the unit frame a, both-end insertion shaft portions 15a, 15a of the roof ridge 15 are inserted into the upper ends of the columns 14, 14, and the lower ends of the columns 14 are screwed to the jack shaft 18. The unit frame a having a predetermined height is formed by being fitted to the column 18b and supported by the column receiver 18c and by adjusting the column 14 by appropriately rotating the column receiver 18c. When connecting the support columns 14 and 14 of the unit frames a and a and the roof roofs 15 and 15 with the vertical connecting material 17, a wedge piece 31 protruding downward at the end of the vertical connecting material 17 is used. The wedge receiver 29 on the roof rod 15 side and the wedge receiver 30 on the lower end of the column 14 may be struck. Further, a horizontal connecting member 16 is disposed between the opposing jack bases 18 of each unit frame a, and each jack base 18 and the horizontal connecting member 16 are connected by the butterfly bolt 33 and the nut 34 via the mounting piece 32. What is necessary is just to connect.

  Seat mounting rings 24 are attached to the top and the bottom of each mountain roof ridge 15 forming the framework A so as to protrude downward. As will be described later, a hanging strap 25 attached to the roof sheet portion 5 of the bag-shaped room body B is inserted and tied to each ring 24, and the bag-shaped room body B is suspended from the roof rod 15 of the frame A. ing.

  The structure of the bag-shaped room main body B will be further described. The bag-shaped room main body B is made of, for example, a translucent polyethylene sheet as a flexible plastic sheet. It is a bag-like shape composed of a roof sheet portion 5 and a floor sheet portion 6, and is folded in a random manner partitioned into three chambers 11 to 13 of a front chamber 11, a cleaning chamber 12 and a changing chamber 13 by partition sheet portions 7 and 8. It is formed so that it can be included.

  As shown in FIG. 3, the gable roof sheet portion 5 includes a mountain top portion of each mountain roof rod 15 at a position corresponding to the mountain top portion and both hem portions of each mountain roof rod 15 forming the frame A, respectively. Suspension straps 25 are attached that are tied through the seat attachment rings 24 attached to both hems.

  In forming the bag-shaped room body B, for example, the polyethylene sheet is appropriately cut to obtain a front wall sheet part 1, a rear wall sheet part 2, a left wall sheet part 3, a right wall sheet part 4, a roof sheet part. 5 and the floor sheet portion 6 are formed, respectively, and the sheet portions 1 to 6 are provided with adhesive margin portions, respectively, and these sheet portions 1 to 6 are bonded with an adhesive via the adhesive margin portions, respectively. By doing so, it can be formed into a bag shape as shown in FIG.

  The front wall sheet portion 1, the rear wall sheet portion 2 and the partition wall sheet portions 7 and 8 are respectively cut out into the entrances 21, 22, 19, and 20 in a straight line, and the respective entrances 21, 22, 19, and 20 are Although the illustration is omitted, the notch portion is overlapped, and a Velcro tape (registered trademark) is attached to the overlapped portion, or a slide fastener is attached to the notch portion. Air is prevented from leaking to the outside, and air in one of the adjacent chambers is not leaked into the other chamber.

  In addition, the back side wall sheet portion 4o of the cleaning chamber 12 is formed with a cut-out opening 23 for the air shower unit 9 to be put into the cleaning chamber 12 or taken out after use. The portions are also formed in an overlapping state and sealed with gummed tape so that the air in the cleaning chamber 12 does not leak outside.

  When installing the clean room CR for the asbestos removal worker, after assembling the frame A in a predetermined place, the bag-shaped room body B is brought inside the frame A, and the floor sheet portion 6 of the room main body B is placed on the ground. What is necessary is just to suspend the roof sheet | seat part 5 to the roof equivalent location of the frame A in the state grounded. In this case, if the roof sheet portion 5 of the bag-shaped room main body B brought into the inside of the frame A is hung on a portion corresponding to the roof of the frame A, the floor sheet portion 6 inevitably contacts the ground. In order to suspend the roof sheet portion 5 from the frame A, a plurality of suspension strings 25 attached to the roof sheet portion 5 are passed through the top and the bottom portions of each mountain-shaped roof ridge 15 and the sheet attachment ring 24 provided. And tie them up.

  Of the three chambers 11 to 13, which are the front chamber 11, the cleaning chamber 12, and the changing room 13 formed in the bag-shaped room body B, the front chamber 11 is formed on the side closest to the asbestos removal work place. The

  Thus, when the installation of the clean room CR is completed by suspending the roof sheet portion 5 from the frame A with the floor sheet portion 6 grounded to the ground inside the frame A, a bag-shaped room is provided as shown in FIG. The air shower unit 9 is brought into the cleaning chamber 12 of the main body B and installed. At this time, the inlet / outlet port 23 provided in the back side wall sheet portion 4o of the cleaning chamber 12 is opened, and the air shower unit 9 is carried into the cleaning chamber 12 through the inlet / outlet port 23. After the installation, the inlet / outlet port 23 is opened. Seal with gummed tape.

  As shown in FIG. 1, the undressing basket 10 and the vacuum cleaner 26 are carried into the front chamber 11 from the entrance / exit 21 of the front wall sheet portion 1.

  Next, the usage method of the clean room CR for asbestos removal workers installed as described above will be described with reference to FIG. In addition, the flow of air in the bag-shaped room body B of this clean room CR is washed from the changing room 13 by fresh fresh air H entering from the entrance / exit 22 of the rear wall sheet 2 as indicated by arrows in FIG. It passes through the chamber 12, passes through the front chamber 11, and flows from the entrance / exit 21 of the front wall sheet portion 1 to the asbestos removal work place side.

  First, before starting the asbestos-containing spray material work, the worker enters the changing room 13 of the bag-shaped room body B from the doorway 22 of the rear wall sheet portion 2 and changes to the work clothes. After wearing and wearing protective clothing 28 (wearing protective clothing 28 from above respirator 27), it passes through the washing chamber 12 from the entrance / exit 20 of the partition sheet portion 8 and further enters and exits the partition sheet portion 7. 19 passes through the front chamber 11 and exits the entrance / exit 21 of the front wall sheet portion 1 and enters a predetermined asbestos-containing spraying material removal facility (not shown) to perform the removal work.

  As shown in FIG. 1, the worker who has finished the removal work at the asbestos-containing spray material removal facility enters the front chamber 11 from the entrance / exit 21 of the front wall sheet portion 1, and is first a vacuum cleaner. 26, the dust attached to the respirator 27, the protective clothing 28, and other protective devices such as work gloves and shoe covers are removed by suction, and the respirator 27 and the work are performed while the respirator 27 is worn. Remove other protective equipment such as gloves and shoe covers. The disposable protective clothing 28 and other protective equipment that has been removed are packed in a plastic bag exclusively for waste and disposed of as specially controlled industrial waste. In FIG. 1, a large arrow indicated by a dotted line indicates a direction in which the operator passes through the bag-shaped room body B.

  An operator who has taken off other protective equipment such as protective clothing 28 and work gloves and shoe covers, enters the cleaning room 12 through the entrance / exit 19 of the bulkhead sheet portion 7 while wearing the respiratory protective equipment 27, and has an air shower. In unit 9, the protective equipment 27 for breathing, work clothes and underwear, and asbestos adhering to the body are sufficiently removed. When the cleaning in the cleaning chamber 12 is completed in this way, the changing chamber 13 is entered through the entrance / exit 20 of the partition sheet 8 and the respiratory protection device 27 is removed. Here, the respiratory protective device 27 is cleaned and inspected, and parts such as a filter medium are replaced. After removing the respiratory protection device 27 in this manner, the operator goes out from the doorway 22 of the rear wall sheet portion 2.

  When the asbestos removal worker clean room CR is used and disassembled and removed, the air shower unit 9, the undressing basket 10 and other equipment installed in the bag-shaped room body B are taken out. After the air shower unit 9 is taken out, the entrance / exit 23 of the back side wall sheet portion 4o is sealed again with gummed tape so that dust or the like accumulated in the cleaning chamber 12 does not leak outside. Thereafter, the bag-shaped room body B is removed from the frame A.

  To remove the bag-shaped room body B from the frame A, as shown in FIG. 4, the bag-shaped room main body B is unwound by unfastening the string 25 tied to the sheet mounting ring 24 of each mountain roof 15 of the frame A. B comes off from the roof part of the framework A and falls to the ground, and is in a folded state as shown in FIG. Since the bag-shaped room body B in the folded state is sealed and packaged, it can be transported to a predetermined place as a specially managed industrial waste as it is and disposed of.

  The skeleton A from which the bag-shaped room body B has been removed can be used for the next use by appropriately disassembling and storing it.

  As described above, the clean room CR for asbestos removal workers includes the frame A assembled by steel pipes, the front and rear wall sheets 1, 2, 3, 4, the roof sheet 5 and the floor sheet 6. It is formed in a bag shape and the front wall sheet portion 1 and the rear wall sheet portion 2 are partitioned into three chambers, a front chamber 11, a cleaning chamber 12, and a changing chamber 13, by two partition sheet portions 7, 8. The bag-like room main body B is made of a flexible plastic sheet, and the bag-like room main body B faces the roof sheet portion 5 side with the floor sheet portion 6 grounded to the ground inside the frame A. The bag-shaped room body B can be easily attached to the frame A, and the bag-shaped room body B can be easily detached from the frame A. After using Since the bag-shaped room body B is removed from the skeleton A and folded, the asbestos dust inside the bag-shaped room body B is scattered to the outside. There is no fear and it can be safely removed and disposed of.

  Moreover, according to this clean room CR, since the bag-shaped room main body B is disposed inside the frame A, when the frame A is disassembled, there is a risk of breaking through the bag-shaped room main body B with a steel pipe or the like forming the frame A. Therefore, there is no risk of asbestos dust in the bag-shaped room body B leaking to the outside. In other words, when dismantling the clean room CR after the use of the clean room CR is finished, the frame A can be disassembled after moving to the required location with the bag-like room body B removed from the frame A and folded. The bag-shaped room main body B is not pierced by the steel pipe or the like forming the frame A. By the way, in the conventional clean room, the structure is such that the frame is covered with the sheet material, so there is a possibility that the sheet material may be broken by the steel pipe forming the frame at the time of dismantling, and asbestos dust will be generated. Risk of leakage to the outside.

  In this clean room CR, the frame A is provided with a seat mounting ring 24 at a required position corresponding to the roof sheet portion 5 of the bag-shaped room body B, and the bag-shaped room main body B is provided with a required position of the roof sheet portion 5. Since the hanging straps 25 are attached and the respective hanging straps 25 are tied and passed through the frame seat mounting ring 24, the attaching and removing operations of the bag-shaped room body B with respect to the roof portion side of the framework A can be easily and easily performed. And can be done quickly.

  In this embodiment, the framework A is made of a steel pipe (steel pipe), but is not limited to a steel pipe but may be a vinyl chloride pipe or a wooden pipe.

It is a perspective view which shows the clean room for asbestos removal workers concerning this invention. It is a perspective view which shows only the framework of a clean room. It is a perspective view which shows only the bag-shaped room main body of a clean room in use condition. It is a perspective view of the state in the middle of removing the bag-shaped room main body from the frame. It is a perspective view of the state which removed the bag-shaped room main body from the frame. (a) is an exploded perspective view of a frame for explaining the assembly structure of the frame in detail, and (b) is a cross-sectional view showing a structure for connecting a jack base and a horizontal connecting member.

Explanation of symbols

Clean room A for asbestos removal worker A Frame B Bag-shaped room body 1 Front wall sheet part 2 Rear wall sheet part 3 Left wall sheet part 4 Right wall sheet part 5 Roof sheet part 6 Floor sheet part 7, 8 Bulkhead sheet part 9 Air Shower unit 11 Front room 12 Washing room 13 Changing room 24 Seat mounting ring 25 Hanging string

Claims (3)

The front room, the washing room, and the changing room are formed in order from the side closest to the asbestos removal work place, and an air shower unit is installed in the washing room. Change into work clothes, wear respiratory protective equipment, protective clothing and other protective equipment, enter the front chamber after work, remove protective clothing and other protective equipment while wearing the respiratory protective equipment, and wash This is a clean room for asbestos removal workers that removes asbestos attached to the respiratory protective equipment, work clothes, underwear, and the body with an air shower in the room, and removes the protective equipment for breathing in the changing room and goes out of the room. And
It is formed into a bag shape with a frame formed by steel pipes and the like, and front and rear left and right wall sheet parts, roof sheet parts and floor sheet parts, and there are two partition sheet parts between the front wall sheet part and the rear wall sheet part It consists of a bag-shaped room body made of a flexible plastic sheet that is divided into three chambers: a front chamber, a washing room, and a changing room. The bag-shaped room body grounds the floor sheet portion to the ground inside the framework. A clean room for asbestos removal workers in which the roof sheet side is suspended from the frame.   The frame is provided with a seat mounting ring at the required location corresponding to the roof sheet portion of the bag-shaped room body, the hanging string is attached to the required location of the roof sheet portion on the bag-shaped room body, and each hanging strap is attached to the frame seat The clean room for asbestos removal workers according to claim 1, wherein the asbestos removal worker is tied through a ring for use. The frame is assembled in such a way that the unit frame can be disassembled by the roof gutter, the column, the jack base attached to the lower end of this, and the horizontal connecting material that connects the lower ends of the frame. The clean room for asbestos removal workers according to claim 1 or 2, wherein the unit frame supports and roof roofs are assembled so as to be separable by a vertical connecting material.

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