JPH0621695B2 - Removal device for adhered dust - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for forcibly removing dust adhering to a human body or clothes, and more specifically, for example, to an existing building. The present invention relates to a device for removing adhered dust, which completely removes asbestos adhering to clothes or a human body of a worker due to scattering in an airtight frame in a construction process for removing sprayed asbestos.

(Conventional Technology) Conventionally, sound absorption, noise prevention, and the like on ceilings, inner walls, floors, etc. in buildings
For the purpose of fireproofing, fine fibrous asbestos was mixed with the main agent such as cement and used.

However, this asbestos used for construction and construction materials deteriorates over time, and the surface of the asbestos is separated into fine powders and scattered in the air.

It has been recently known that absorption of these fine fibers for a long period of time or in large amounts causes lung fibrosis as well as health disorders such as lung cancer and bronchial cancer, which is a kind of pollution problem.

Therefore, these buildings using asbestos have been removed according to certain standards, and workers with protective equipment, protective clothing, etc. were engaged in this work.

Then, at the end of the construction of the day, asbestos dust adhered to the protective equipment and protective clothing, etc. is prevented from being absorbed into the human body, or in order to prevent it from being released to the atmosphere by leaving it, It is obligatory for the builder to have a temporary dust removal facility connected to the work site. (Refer to FIG. 5) In this product, a plastic sheet 40 is laid on the floor, and the walls and temporary columns 41 of the building are used on the floor, and the plastic sheet 42, 43 surrounds the surroundings and the ceiling, and overlaps them. Although it is not shown in the drawing, it is an air shower that blows out dust with air pressure inside, and an exhaust fan is connected to this room to reduce the pressure, and dust is scattered to the outside. In addition to preventing leakage, asbestos that had been dedusted from protective equipment and protective clothing was sent to the dust collector.

(Problem to be Solved by the Invention) Since the above-mentioned temporary dust removing device is a simple facility in which the floor, the ceiling, and the outer periphery are surrounded by the plastic sheet, the removed dust leaks from the seam of the sheet and pollutes the surrounding air. Resulting in.

Spraying dust with an air shower scatters fine powder throughout the room, so it is necessary to discharge it to the outside early, which increases the capacity of the air blower, but this suction force softens and lowers the waist. The weak enclosure of the plastic sheet bends inward to narrow the room and hinder dust removal.

Asbestos, which causes the above-mentioned health problems, has a particularly high effect on the human body up to about 0.2 μm,
Since this fine powder has a high concentration remaining in the room, it reattaches to clothes or the human body, particularly hair and the like in a general air shower and causes a health hazard to the human body and air pollution.

Etc. have various problems.

The present invention has been made to solve the above-mentioned problems, for example, in the removal processing work of sprayed asbestos applied to an existing building, the asbestos attached to the clothes and the human body of the worker due to scattering is hermetically sealed. An object of the present invention is to provide a device for removing adhered dust, which completely removes dust inside the frame and surely collects the removed dust to prevent pollution due to release to the atmosphere.

(Means for Solving the Problem) Means of the present invention for achieving the above-mentioned object are (1) an airtight frame having an inlet on one side and an outlet on the other side, and an inlet in the airtight frame A first washroom having a first means for removing adhered dust provided on the side, a dressing room adjacent to the first remover, and a second means for removing adherent dust adjacent to the dressing room. A second wash room, a dressing room adjacent to the second removing means and having the outlet, a partition member provided between each of the chambers, and an interior provided at an appropriate position of the frame body. Adhesive dust removing device equipped with depressurizing means for pressing, (2) Airtight frame with inlet on one side and outlet on the other side, and adhesion on the inlet side of the airtight frame A first washroom having a first means for removing dust; a dressing room adjacent to the first means for removing; Between the dressing room, the second washroom having a second means for removing adhered dust, the clothing room having the outlet and being adjacent to the second removing means, and A partitioning member, a decompression means for providing a negative pressure inside the partition body provided at a proper position of the frame body, and a towed trolley for mounting and moving the frame body; 3) An airtight frame having an inlet on one side and an outlet on the other side, a first washroom having a first means for removing adhered dust provided on the inlet side of the airtight frame, and the first washroom. A dressing room adjacent to the removing means, a second wash room having a second removing means for adhering dust adjoining the dressing room, and a dressing room having the outlet adjacent to the second removing means, A partition member provided between each of the above-mentioned chambers and an appropriate position of the frame body to negatively pressure the inside A pressure reducing means, in the configuration of the rail body adhering dust thereof for removing apparatus that gave a self-propelled carriage to move by placing the.

(Operation) The present invention has the following effects due to the above configuration.

When the construction / work involving the generation of dust is completed, for example, a construction worker who has completed the removal process of the asbestos layer applied to the building, enters the inside of the frame entrance, and is connected to this entrance. Since the single washroom is provided, the dust adhering to the surface of the protector and the clothes is blown off by the air pressure by the first removing means, for example, an air shower, while the protector and the clothes are kept in this room.

Then, the scattered dust floats in this room, but since the inside is always in a negative pressure state by the pressure reducing means connected to the frame, the dust is sucked and continuously filtered by a known filter or the like. Is discharged to the outside of the room.

Then, once dust removal of protective equipment and clothing is completed, it passes through the partition member and removes all clothing in the next dressing room,
The clothes are held in the undressing room, pass through the partitioning member for this room, and move to the next second washroom adjacent to the room.

The worker who has moved naked has a second removing means provided in this room, for example, a hot water shower to wash away the dust remaining on the body surface along with the warm water, and remove the dust again.

Furthermore, in the adjoining changing room that passes through the partitioning member with this room, when changing to new clothes that are not used for dust removal work and exiting from the exit of the frame, the clothes and human bodies of workers engaged in the work are completely No dust is attached.

This airtight frame is to be lifted by a crane, placed on a truck bed, transported to the desired construction site, and then lowered to the vicinity of the building where dust removal processing is to be performed and connected to the specified equipment for use. After the construction is completed, it will be loaded again on the truck bed and transported to the next construction site or storage site.

Alternatively, the airtight frame may be placed on a tow truck, transported to a construction site by a tow vehicle such as a truck, and installed at a desired position.

Further, the airtight frame may be attached in advance to a self-propelled truck, for example, a loading platform such as a large truck, moved to a construction site, and installed at a desired position together with the truck.

(Embodiment) Next, an embodiment of a device for removing adhered dust according to the present invention will be described with reference to the drawings.

The embodiment of the device of the present invention removes asbestos of fine powder that is scattered by the construction and adheres to the clothes and the human body of the worker in association with the removal processing construction of the sprayed asbestos constructed on the existing building. An example will be described.

However, as a matter of course, it can be used for dust other than asbestos, such as dust generated in construction and civil engineering.

1 to 4, A is an airtight frame, and its surface material 1 is
A material that has corrosion resistance and is lightweight, such as duralumin, aluminum, etc., is formed in a box shape that is long in one direction at a height at which a person can stand and perform the required motion, and has a series of spaces, On the entire surface of the inner wall, a heat insulating material b is sandwiched and a synthetic resin plate 2 having airtightness and water resistance is attached.

In addition, the entrance 3 is provided on one side and the exit 4 is provided on the other side, and the airtight doors 5 and 6 are provided on the peripheries thereof to conceal the
It can be opened freely.

The airtight frame A is formed by partitioning the interior of the chamber into four chambers and forming them in a continuous manner. The passages of the chambers are made flexible by using a material such as soft rubber. Each room is simply separated by the partition member 7 which is not easily turned up by a little wind force.

Although the shape of the airtight frame A is not shown in the drawing,
The cells may be formed in a square shape and the adjacent chambers may be communicated with each other by the partition member 7.

Reference numeral 8 denotes a first washroom provided on the entrance 3 side of the frame A among the sections divided as described above, and the first removing means 9 such as a shower unit for supplying external air is exposed to the inside of the room.
In the shower unit 9, a large number of air nozzles 10 for injecting indoors are arranged at intervals so as to act on almost the entire body of a construction worker, and an intake hole 11 is provided in the ceiling at the upper part of the intake air. A pressure reducing means 13 such as an exhaust fan installed outside is connected to the hole 11 via a flexible hose 12, and a predetermined negative pressure is applied to the inside, so that the asbestos powder scattered by the air nozzle 10 is instantly sucked to another room. To prevent contamination.

The depressurizing means 13 may be provided in a plurality of places other than the first washroom 8 to depressurize at the same time. In this case, the suction effect of the scattered asbestos powder is improved.

Numeral 14 is a dressing room connected to the above-mentioned first washroom 8. Since a large amount of asbestos powder still remains in the clothes cleaned in this first washroom 8, the clothes in this room 14 are not washed. Remove all or whatever you wore such as clothes and protective equipment and store them in the dust box 15 etc.

16 is a second washroom that is communicated adjacent to the undressing room 14,
A waterproof drain pan 18 having a drainage hole 17 at the bottom is laid, and a second removing means 19 such as a hot water shower connected to a water heater is attached to the upper wall or ceiling, and the second removing means is provided.
The asbestos powder remaining on the body of the naked construction worker in the dressing room 14 is washed away with warm water and detergent sprayed from 19 to completely asbestos-free state.

Then, the drainage hole 17 of the drain pan 18 is connected to a wastewater treatment means 20 to discharge wastewater containing asbestos powder, 100
Filters 21 each having a filtering capacity of μ, 5 μ, and 0.2 μ are connected to the drainage pipes and filtered to a standard value that conforms to the regulations to remove asbestos powder in the drainage and discharge it to the drainage ditch.

The above-mentioned second removing means 19 has the highest washing effect with the hot water shower type, but an air shower may be used.

22 is a clothing room adjacent to the second washroom 16 in which clothes not to be used for construction work are prepared in advance, and the construction worker who has gone through the second removing means 19 wears the clothes. I will exit from the exit 4 provided in this room.

Reference numeral 23 is an air conditioner installed near the frame A, which is provided with an outlet for the air adjusted to a predetermined temperature and humidity.
Send it to 22 to adjust the room air.

Reference numeral 24 is a monitor room laid in a suitable place on the frame A, which is filled by a site manager, and monitors the image of a surveillance camera installed on the construction site or during exit from the site by a receiver installed in the room. Then, the above facilities are prepared so that the construction worker can immediately wash his / her body upon completion of the work, and appropriate instructions are given through a microphone, a speaker, etc. regarding the progress of the work and the work contents.

25 is a cover provided between the construction site and the entrance 3 of the frame A,
Cover the passage of the construction worker with a vinyl sheet,
The asbestos powder that adheres to workers during transportation is protected from being scattered into the atmosphere.

In FIG. 3, reference numeral 26 is a towed trolley on which the frame A is placed, and wheels 27, 27 are pivotally supported at the lower part and towed by a truck (not shown), etc. To carry.

In FIG. 4, 28 is a self-propelled trolley on which the frame A is placed, which is used to transport a management site and a desired construction site by using a commonly used large truck until the construction is completed. Park at the construction site.

In FIGS. 3 to 4, reference numeral 29 is a ramp used when the carriages 26 and 28 are used, and is formed in a step shape so that it can be smoothly moved to the entrance 3 of the frame A.

(Effects of the Invention) As described above, the device of the present invention removes dust in an airtight frame that is isolated from the outside air, so that leakage to the atmosphere during dust removal work can be completely prevented, which results from this. Secondary pollution can be prevented in advance.

Also, since all dust removal work is completed within the frame, no dust remains on the construction worker's clothes and body when exiting from the exit, so further synergy with the above can prevent further air pollution. At the same time, the remaining dust does not cause a health hazard for workers.

Further, when the dust is removed in the airtight frame, the dust does not leak out, and the dust washed off in the frame is discharged in a batch, so that it can be easily cleaned.

It has a special effect such as.

[Brief description of drawings]

FIG. 1 is a front view showing the concept of one embodiment of the apparatus according to the present invention. FIG. 2 is a plan view in which a part of the above is enlarged and crossed. FIG. 3 is a front view showing a state in which the frame is placed on a tow truck. FIG. 4 is a front view showing a state in which the frame is placed on a self-propelled carriage. FIG. 5 is a perspective view showing a conventional dust removing equipment. In the figure, 3 is an entrance. 4 is the exit. A is an airtight frame. 9 is a first removing means. 8 is the first washroom. 14 is a dressing room. 19 is the second removing means. 16 is the second washroom. 22 is a clothing room. 7 is a partition member.
13 is a decompression means. 26 is a towed cart. 28 is a self-propelled trolley.

Claims (3)

[Claims] 1. An airtight frame having an inlet on one side and an outlet on the other side, and a first washroom having first means for removing adhered dust provided on the inlet side of the airtight frame, A dressing room adjacent to the first removing means, a second wash room having a second removing means for adhering dust adjacent to the dressing room, and a garment having the outlet adjacent to the second removing means. An apparatus for removing adhered dust, comprising: a chamber, a partition member provided between each of the chambers, and a decompression unit that is provided at an appropriate position of the frame body to depressurize the inside. 2. An airtight frame having an inlet on one side and an outlet on the other side, and a first washroom having first means for removing adhered dust provided on the inlet side of the airtight frame, A dressing room adjacent to the first removing means, a second wash room having a second removing means for adhering dust adjacent to the dressing room, and a garment having the outlet adjacent to the second removing means. A chamber, a partition member provided between each of the chambers, a decompression unit provided at an appropriate position of the frame body to negatively pressure the inside, and a towed truck for mounting and moving the frame body. A removing device for adhering dust characterized by being made. 3. An airtight frame having an inlet on one side and an outlet on the other side, and a first washroom having first means for removing adhered dust provided on the inlet side of the airtight frame, A dressing room adjacent to the first removing means, a second wash room having a second removing means for adhering dust adjacent to the dressing room, and a garment having the outlet adjacent to the second removing means. A chamber, a partitioning member provided between each of the chambers, a decompression unit that is provided at an appropriate position of the frame body to negatively pressure the inside, and a self-propelled carriage that mounts and moves the frame body. A removing device for adhering dust characterized by being provided.