JP6795298B2 - Asbestos removal system - Google Patents

Description

The present invention relates to an asbestos removal system provided with a demolition work vehicle that enhances the safety of the operator and can quickly dispose of asbestos applied to a wall surface or the like, for example, in the demolition work of an old building. ..

In the dismantling of a reinforced concrete building, the present inventor uses concrete pieces such as window sashes and partition panel frames as aluminum resources, handrails and fireproof doors as iron resources, and the reinforcing bars in the building frame as iron resources. Also proposes a scrap dismantling machine equipped with a cutting shear that cuts a scrap object at a position near the arm pivot fulcrum of a pair of work arms that can be reused as a material for road pavement (see Patent Document 1).

By the way, asbestos is a natural mineral fiber, which has high heat resistance, durability, chemical resistance, and electrical insulation, and also has excellent fire resistance, soundproofing, and abrasion resistance. Nearly 90% was used as a building material. For example, it has been used as a fireproof coating material for steel frames, sound absorbing and heat insulating materials for machine rooms, heat insulating materials for equipment ducts, interior materials (ceilings, walls, floors, bases), exterior materials, and the like. In addition to building materials, it has been used in various industrial products such as friction materials such as brake pads and clutch linings for automobiles, heat insulating materials such as piping and machinery, packing, and sealing materials.

However, asbestos fibers have been found to cause lung cancer and mesothelioma, and their use has been gradually restricted since the 1950s. In 2004, the asbestos content exceeded 1%. It has been decided to ban the manufacture, import, and use of 10 items such as building materials, friction materials, and adhesives (Occupational Safety and Health Law Enforcement Ordinance).

It is time to rebuild structures using such asbestos and asbestos-containing building materials, and many demolition is currently being carried out. Structures include not only buildings but also vehicles such as large buses and trucks, and railroad vehicles. That is, passenger cars that cover the ceiling and wall surfaces of rolling stock by spraying asbestos-containing spraying material to insulate railway vehicles have been manufactured in the past, and a large number of such passenger cars have been discarded to date. It is going on.

Since the molded plate of asbestos is a non-scattering building material, it is extremely unlikely that asbestos will scatter in normal use, but asbestos will be generated due to breakage or crushing of the molded plate during extension / renovation or demolition of a building. Careful handling is required as it may scatter. In particular, building demolition work, including the dismantling of sprayed asbestos material, is extremely easy to scatter, so strict exposure to isolate the work area and properly use dust masks and protective clothing that can handle high concentrations of dust. Preventive measures are needed.

Japanese Unexamined Patent Publication No. 2007-54931

To perform renovation and demolition work of a building while removing heat-resistant and fire-resistant asbestos material sprayed on the inner ceiling wall, side walls, etc. at the time of extension / renovation or demolition of a building, specifically, removal of asbestos material It is necessary to make a clear distinction between work and building renovation and demolition work.

That is, the part to be treated for asbestos removal is isolated with an isolation sheet, and the isolated section is put into a negative pressure state by operating an exhaust device with a HEPA filter, and then the plate material covering the inner wall of the vehicle is removed to expose the sprayed asbestos material. The asbestos material is removed by moistening it with a dust scattering prevention treatment agent (hereinafter referred to as "chemical solution") and scraping off the spray material. Depending on the situation, the spraying material is removed with various instruments and devices. After that, isolation, negative pressure, exposure, wetting with a chemical solution, and removal of the spray material will be repeated.

After the asbestos material is surely removed at the place where the demolition work is performed, the building frame is reconstructed and demolition work is performed, and the building is sorted into reusable aluminum resources, iron resources, concrete pieces, etc.

However, asbestos removal work is mainly manual work by workers, and it is desired to improve the safety of workers and process them more quickly.

The present invention is to obtain an asbestos removal system equipped with a demolition work vehicle that enhances the safety of the operator and can quickly dispose of asbestos applied to the wall surface or the like in the demolition work of an old building. The purpose.

In the asbestos removal system according to the invention according to claim 1, the portion to be treated for asbestos is separated by an isolation sheet, an exhaust device with a HEPA filter is operated to bring it into a negative pressure state, and then the sprayed asbestos material is exposed. An isolated section and a dismantling work vehicle that enters the isolated section to perform asbestos removal work, and is a undulating operating boom mounted on the body of a self-propelled vehicle so as to be swivelable. It is an asbestos removal system equipped with a dismantling work vehicle equipped with remote control.
The dismantling work vehicle is provided with a wide flat blade-shaped scraper portion for scraping asbestos at the tip portion of the operating boom.
The work vehicle
A pencher that is rotatably attached to the tip of the operating boom around the axis of the operating boom and that opens and closes by remote control.
Further equipped with a driving boom on which an operator who remotely controls the operating boom or the pencher is boarded.
The driving cabin can be maintained in an airtight state
A clean air supply means capable of supplying clean air in a pressure state higher than the ambient air pressure is provided in the operating cabin.
The clean air provision means, Ri Oh air from outside of the isolated compartments by supplying air supply hose to the operating cabin,
The scraper portion is attached to the tip of one arm portion of the pencher, and the claw portion having one or more claws is attached to the tip of the other arm portion of the pencher.
A first holding angle in which the scraper portion and the claw portion are inclined and folded in the closing direction of the pencher, and a second holding angle in which the scraper portion and the claw portion are inclined and folded in the opening direction of the pencher. It is characterized in that it is mounted interchangeably with a holding angle .

The asbestos removal system according to the invention according to claim 2 is equipped with a scraper portion so that the contact angle of the flat blade of the scraper portion according to claim 1 can be changed according to the facing wall surface or ceiling surface. It is characterized by being provided with a scraper mounting angle changing means for changing the angle.

In the asbestos removal system according to the invention according to claim 3, the scraper portion according to claim 2 is interchangeably attached to a first holding angle and a second holding angle with respect to the tip end portion of the pencher. And
The first holding angle is a state in which the scraper portion is mounted in a folded state in the closing direction of the pencher, and the interior is formed when the pencher is rotated so that the scraper portion is in the upper position. The angle is such that the ceiling surface can be scraped off, and the interior wall surface can be scraped off when the pencher is rotated so that the scraper portion is in the lower position.
The second holding angle is characterized in that the scraper portion is mounted in a state of being folded in the opening direction of the pencher, and is an angle that does not hinder the pinching work accompanying the opening / closing operation of the pencher. Is to be.

The asbestos removal system according to the invention according to claim 4 is characterized in that the scraper portion according to any one of claims 1 to 3 is an L-shaped combination of two wide flat blades. It is something to do.

The asbestos removal system according to the invention according to claim 5 is such that the approach angle of the claws of the claws according to any one of claims 1 to 4 can be changed according to the facing wall surface or ceiling surface. It is characterized in that it is provided with a claw mounting angle changing means for changing the mounting angle of the claw portion.

In the asbestos removal system according to the invention according to claim 6 , the claw portion according to any one of claims 1 to 5 has a first holding angle and a second holding angle with respect to the tip end portion of the other end of the pencher. It is mounted interchangeably with the holding angle of
The first holding angle is a state in which the claw portion is mounted in a state of being folded in the closing direction of the pencher, and the interior is formed when the pencher is rotated so that the claw portion is in the upper position. The angle is such that the ceiling surface can be scraped off, and the interior wall surface can be scraped off when the pencher is rotated so that the claw portion is in the lower position.
The second holding angle is characterized in that the claw portion is mounted in a state of being folded in the opening direction of the pencher, and is an angle that does not hinder the pinching work accompanying the opening / closing operation of the pencher. Is to be.

The present invention has an effect that in the demolition work of an old building, when asbestos applied to a wall surface or the like is removed, the safety of the operator is enhanced and a demolition work vehicle that can be quickly processed can be obtained.

It is explanatory drawing which shows the structure of one Example of the dismantling work vehicle of this invention. It is explanatory drawing which shows the structure of the pencher provided in the dismantling work vehicle of FIG. It is explanatory drawing which shows the structure of the scraper part mounted on the pencher of FIG. It is explanatory drawing which shows the structure of the claw part mounted on the pencher of FIG. It is explanatory drawing which shows the structure of another scraper part.

In the present invention, the work vehicle is equipped with a undulating actuating boom mounted on the vehicle body of a self-propelled vehicle so as to be able to be remotely controlled, and has a wide width for scraping asbestos at the tip of the actuating boom. It has a flat blade-shaped scraper section. As a result, in the demolition work of an old building, when asbestos applied to the wall surface or the like is removed, the safety of the operator who operates by remote control can be improved, and a demolition work vehicle that can be processed quickly can be obtained.

That is, as the self-propelled vehicle of the dismantling work vehicle of the present invention, specifically, a small and lightweight vehicle that can be carried into the interior of an old building to be dismantled is used. Vehicles that can run on rubber caterpillars for weight reduction are equipped with a swivel stage and an undulating operating boom mounted on the swivel stage. In order to operate the vehicle or the operation boom by remote control, an imaging means such as a camera for photographing the work target place and an operation means for operating the vehicle or the operation boom by wire or wirelessly are provided or closer to the work target place. In order to steer at the position, the operator may board in the driving cabin and remotely control the operating boom or the like.

The operating cabin in this case can be maintained in an airtight state, and the operating cabin is provided with clean air providing means capable of supplying clean air in a pressure state higher than the ambient air pressure. This further enhances the safety of the operator. Since the asbestos removal treatment is performed after the asbestos removal treatment is separated by the isolation sheet, it is preferable that the dismantling work vehicle is driven by the motor output rather than by the engine output. Further, the operation boom and the like may be driven by the output of the motor or by the hydraulic pressure generated by the motor.

The driving cabin provided in the dismantling work vehicle of the present invention can be maintained in an airtight state. That is, the operating cabin has a sealing function and a pressure resistance function. Specifically, the scraper part at the tip of the hydraulically operated boom, or the front glass for visually observing the opening / closing operation of the pencher at the tip of the hydraulically operated boom and the scraper part by visually observing the front for driving the self-propelled vehicle. It is equipped with a highly airtight cabin equipped with a door for entering the driver's seat.

Further, a clean air supply means capable of supplying clean air in a pressure state higher than the ambient air pressure is provided in the operating cabin. As a result, it is possible to protect the safety of the operator working in the demolition work vehicle even at the work site where asbestos may be scattered.

Specifically, in the dismantling work of an old building, when removing asbestos applied to the wall surface, etc., a plastic sheet such as polyethylene, polyethylene terephthalate (PET resin), vinyl chloride, etc., which has both a sealing function and a pressure resistance function. The entrance and exit of the room to be peeled off is isolated by a material or the like, or the surrounding wall surface or the like including the wall surface to be peeled off is surrounded by the sheet material or the like to form an isolated space. An exhaust means is arranged in which the air in the isolated space is sucked while being collected by a HEPA filter to be in a negative pressure state. The HEPA filter satisfies the standard specified in Japanese Industrial Standard Z8122.

The asbestos removal work is carried out by allowing the dismantling work vehicle of the present invention to enter the isolated space. In order to improve the safety of the operator even in an environment where asbestos drifts around the outside of the work vehicle, a clean air supply means capable of supplying clean air at a pressure higher than the ambient air pressure is provided in the driving cabin. As the means for supplying clean air, an oxygen cylinder or the like filled with clean air is mounted on the dismantling work vehicle and gradually introduced into the driving cabin to bring the clean air into a pressure state higher than the ambient air pressure in the driving cabin. However, as described above, since the air in the isolated space is sucked while being collected by the HEPA filter by the exhaust means to create a negative pressure state, the air is blown into the operating cabin from the outside of the isolated space with a hose or the like. The air supply type air supply means to be supplied has a simple configuration and is easy to maintain.

When this air supply type air supply means is arranged, a check valve that discharges the air inside the vehicle to the outside of the vehicle and blocks the air from the outside of the vehicle according to the negative pressure state outside the work vehicle in the driving cabin. By providing the above, it is possible to protect the safety of the operator in the vehicle by supplying the outside air by the hose while removing the air in the driving cabin according to the surrounding negative pressure state.

The operating boom in the present invention may be driven by a motor or a hydraulic drive, but a preferable hydraulic drive includes at least a first boom and a second boom provided so as to be prone by some hydraulic pistons or the like. A wide flat blade-shaped scraper portion for scraping asbestos may be provided at the tip of the boom, which is the highest position. Preferably, the tip of the hydraulically operated boom is further provided with a pencher that opens and closes by operation from an operation cabin rotatably attached around the axis of the boom, and the tip of the pencher is provided with a scraper portion. ..

This pencher equipped with a flat-blade scraper part can be used not only for removing asbestos but also for demolition work of old buildings such as tearing off unnecessary things with the pencher, and it is easy to handle. It becomes a car.

A preferable pencher that opens and closes by operating from the driving cabin includes a holding portion that opens and closes in order to tear or break the object to be held during the dismantling work. A wide flat blade-shaped scraper portion for scraping asbestos may be provided at one tip of the holding portion that opens and closes.

The contact angle of the flat blade of the scraper portion can be changed according to the facing wall surface or ceiling surface. That is, the scraper portion provided at the tip of the pencher is opposed to the facing wall surface or ceiling surface by changing the angle by rotating the tip of the hydraulically operated boom with respect to the boom axis and changing the angle by opening and closing the pencher. The angle can be changed to some extent, but more preferably, the scraper mounting angle is changed so that the contact angle of the flat blade of the scraper section can be changed according to the wall surface or the ceiling surface facing each other. An angle changing means may be provided.

As a means for changing the scraper mounting angle, it is conceivable to change the mounting angle between the handle of the scraper portion and the scraper by the power of the motor, but the scraper portion is first held with respect to the tip portion of the pencil. It is mounted interchangeably between an angle and a second holding angle, and this first holding angle is an angle that allows the interior ceiling surface to be scraped off when the pencher is rotated so that the scraper portion is in the upper position. The second holding angle is set to an angle at which the interior wall surface can be scraped off when the pencher is rotated so that the scraper portion is in the lower position, and the second holding angle is set to an angle that does not interfere with the pinching work accompanying the opening and closing operation of the pencher.

That is, the angle at which the scraper portion attached / detached to / from the tip of the pencher is attached is 180 °, that is, by changing the front and back sides, the contact angle of the flat blade is changed so that the scraper portion is flat with respect to the handle portion. The one with a tilted blade has the advantages of simpler configuration, lower manufacturing cost, and fewer failures.

An attachment other than the scraper portion may be attached to the tip end portion of the other end of the pencher having the scraper portion arranged at one end. That is, in a preferred embodiment, the pencher is rotatably attached around the axis of the hydraulically actuated boom, the scraper portion is attached to the tip of one end of the pencher that opens and closes, and one is attached to the tip of the other end of the pencher. A claw portion provided with the above claws is further provided.

This claw portion is used when various covers constructed in the interior and the heat insulating material under the cover are broken and peeled off. That is, the various covers that have been internally constructed to expose the sprayed asbestos material and the heat insulating material under the cover are broken. After this peeling, there is an effect that the removal work of moistening the exposed asbestos material with a chemical solution for preventing dust scattering and scraping it off cleanly with a flat-blade scraper portion can be performed faster than usual.

Similar to the scraper portion, the claw portion of the present invention is provided so as to be changeable according to the facing wall surface or ceiling surface. That is, the claw portion provided at the tip of the pencher is opposed to the facing wall surface or ceiling surface by changing the angle by rotating the tip of the hydraulically actuated boom with respect to the boom axis or by changing the angle by opening and closing the pencher. Although the angle can be changed to some extent, a claw mounting angle changing means for changing the mounting angle of the claw portion is provided so that the approach angle of the claw portion of the claw portion can be changed according to the facing wall surface or ceiling surface. Just do it.

As the means for changing the hook claw mounting angle, similarly to the scraper mounting angle changing means, it is conceivable to change the mounting angle between the handle portion of the hook claw portion and the hook claw by the power of the motor, but the hook claw portion is the pencher. When the pencher is rotated so that the first holding angle and the second holding angle are interchangeably attached to the tip of the other end of the above, and the hook claw portion is in the upper position at this first holding angle. The opening and closing of the pencher is a second holding angle that allows the interior ceiling surface to be scraped off and the interior wall surface to be scraped off when the pencher is rotated so that the hook claw is in the lower position. The angle should be such that it does not interfere with the pinching work that accompanies the movement.

That is, the claws are tilted with respect to the handle of the claws so that the approach angle of the claws can be changed by changing the angle at which the claws to be attached / detached to the tip of the pencher are attached by 180 °, that is, on the front and back sides. There are advantages that the configuration is simple, the manufacturing cost is low, and there are few failures.

FIG. 1 is an explanatory diagram showing a configuration of another embodiment of the dismantling work vehicle of the present invention. FIG. 2 is an explanatory view showing a configuration of a pencher provided in the dismantling work vehicle of FIG. 1, FIG. 2A is an explanatory view showing one mounting example of a scraper portion and a claw portion, and FIG. 2B shows another mounting example. The explanatory view and the c figure are enlarged views of the main part. FIG. 3 is an explanatory view showing a configuration of a scraper portion mounted on the penciler of FIG. 2, FIG. 3A is an explanatory view showing one mounting example, and FIG. 3B is an explanatory view showing another mounting example. FIG. 4 is an explanatory view showing a configuration of a claw portion mounted on the pencher of FIG. 2, FIG. 4A is an explanatory view showing one mounting example, and FIG. 4B is an explanatory view showing another mounting example. FIG. 5 is an explanatory diagram showing the configuration of another scraper unit.

As shown in FIGS. 1 and 2, the lightweight dismantling work vehicle 10 mainly dismantles the interior of a high-rise building, passenger cars such as passenger cars, trains, diesel railcars, large vehicles such as buses, and passenger planes. A small and lightweight vehicle 11 of at least 6 tons or less is used so as to be used in the above. The vehicle 11 that can run on the rubber caterpillar 14 for weight reduction has a turning stage 12 driven by a motor output, a driving cabin 13 on which the operator who operates the work vehicle 10 rides, and a pencher 20 for dismantling work. It is provided with a hydraulically actuated boom 16 having the same. The rubber caterpillar 14 may be changed to four rubber tires for further weight reduction.

The hydraulically actuated boom 16 of the work vehicle 10 is folded up to the work site. The pencher 20 at the tip of the boom 16 can swing and rotate around the axis with respect to the boom 16, and these operations are performed by hydraulic or electric remote control from the operating cabin 13. Will be In this case, the operating cabin 13 can be maintained in an airtight state, and in order to prevent the driver (operator) from being exposed to asbestos during the removal work, clean air is applied to the operating cabin 13 (large). It is provided with a means for supplying clean air that can be supplied in a pressure state higher than the atmospheric pressure). In this embodiment, the dismantling work vehicle 10 is operated from within the driving cabin 10, but a camera that captures the work target and an operation command from a place far away from the work place are used as individual drive means. A remote control means for transmission may be provided.

As one of the means for supplying clean air, an oxygen cylinder (not shown) used when moving to the asbestos removal work site is installed in the dismantling work vehicle, and as another means for supplying clean air, An air supply hose 15 as an air supply type air supply means attached by an operator outside the vehicle when arriving at the asbestos removal work site is arranged. Further, below the door portion of the driving cabin 13, a check valve 17 is provided which allows air to flow out from the inside of the vehicle according to the air pressure inside and outside the cabin and does not allow air to flow in from the outside of the vehicle. As a result, at the asbestos removal work site, the air at the site is sucked while being collected by the HEPA filter by the exhaust means to create a negative pressure state, so that the air in the operating cabin is eliminated according to the surrounding negative pressure state. At the same time, since the outside air is supplied by the hose, it is possible to protect the safety of the driver (operator) in the vehicle.

As shown in FIG. 2A, a dismantling work pencher 20 is attached to the tip of the hydraulically actuated boom 16 via a pencher turntable 21. The turntable 21 can be remotely controlled from the driving cabin 13 to rotate the pencher 20 forward and reverse around its axis so as to have a desired orientation. The pencher 20 includes a pair of arm portions of a fixed arm portion 22 fixed to the turntable 21 and a drive arm portion 23 that is driven to open and close around a fulcrum 24 by flood control. On the opposite side of the pair of arm portions, the holding portions 26a and 26b provided with cutting blades 25a and 25b for breaking the object outward from the fulcrum 24 and an uneven portion for sandwiching and tearing the object. And are arranged.

A scraper portion 31 and a claw portion 32 are fixed to the tips of the holding portions 26a and 26b of the fixed arm portion 22 and the drive arm portion 23, respectively. Specifically, the cross section projecting from the tip of the fixed arm portion 22 is pivotally supported by the square locking shaft 27a, and the handle portion of the scraper portion 31 shown in FIG. 3 is fixed from the side by the locking bolt 28. It is fixed. The cross section projecting from the tip of the drive arm portion 23 is pivotally supported by the square locking shaft 27b, and the handle portion of the claw portion 32 shown in FIG. 4 fixed from the side by the locking bolt 28 is fixed. There is.

As shown in FIGS. 2A and 2B, the locking shafts 27a and 27b of the fixed arm portion 22 and the drive arm portion 23, and the handle portion of the scraper portion 31 and the handle of the claw portion 32 pivotally supported by the locking shafts 27a and 27b. Since it has the same locking structure as the part, the scraper and handle of the scraper part can be changed by changing the mounting angle of the scraper part 31 and the claw part 32 by 180 °, that is, on the front and back sides. A structure in which the mounting angle with the portion and the mounting angle between the claw and the handle of the claw portion are tilted has an advantage that the configuration is simple, the manufacturing cost is low, and there are few failures.

Further, as shown in FIGS. 3 and 4, since the handle portion of the scraper portion 31 and the handle portion of the claw portion 32 have the same locking structure, the scraper attached to the fixed arm portion 22 and the drive arm portion 23. The same effect can be obtained even if the portion 31 and the claw portion 32 are changed. Each of the two locking shafts 27a and 27b of this embodiment has a square cross section orthogonal to the longitudinal axis, and is slightly tapered toward the tip of the longitudinal axis for easy mounting. ..

In FIG. 2A, the scraper portion 31 and the claw portion 32 are mounted in a state of being folded in the closing direction of the pencher. In this case, it is suitable to peel off from the upper side to the lower side of the wall surface. That is, the turntable 21 of the pencher 20 is rotated to put the claw portion 32 in the upper position. In this state, the various covers that have been internally constructed and the heat insulating material under the cover are broken from above to below. The exposed sprayed asbestos material under the cover is sprayed with a chemical solution to moisten it. After sufficient infiltration, the turntable 21 of the pencher 20 is rotated to move the scraper portion 31 to the upper position. The asbestos material is neatly scraped from above to below by the flat blade-shaped scraper portion 31.

Further, in FIG. 2B, the scraper portion 31 and the claw portion 32 are attached in a state of being folded in the opening direction of the pencher. In this case, it is suitable to peel off the ceiling surface and the upper part of the wall surface. That is, the mounting angles of the scraper portion 31 and the claw portion 32 are changed by 180 ° from the state shown in FIG. 2a, that is, on the front and back sides. The turntable 21 of the pencher 20 is rotated so that the claw portion 32 is in the upper position. In this state, the various covers installed on the ceiling surface and the heat insulating material under the cover are broken. The exposed sprayed asbestos material under the cover is sprayed with a chemical solution for dust scattering prevention treatment to moisten it. After sufficient infiltration, the turntable 21 of the pencher 20 is rotated to move the scraper portion 31 to the upper position. The asbestos material is neatly scraped off from the ceiling surface and the like with the flat blade-shaped scraper portion 31.

As the scraper section, another scraper section may be used. As shown in FIG. 5, another scraper portion 51 is a state in which two wide flat blades 52 and 53 are combined in an L shape. As a result, the scraper portion 51 can be brought into contact with the wall surface or the ceiling surface without changing the angle, so that the removal work of scraping off the asbestos material or the like can be easily performed. In addition, the corner portion where the walls are close to each other or the ceiling and the wall are close to each other can be scraped off by a single removal operation.

10 ... Demolition work vehicle,
11 ... Vehicle,
12 ... Swivel stage,
13 ... Driving cabin,
14 ... Rubber caterpillar,
15 ... Air supply hose,
16 ... Flood control boom,
17 ... Check valve,
20 ... Pencher for dismantling work,
21 ... Pencher turntable,
22 ... Fixed arm part,
23 ... Drive arm,
24 ... fulcrum,
25a ... Cutting blade,
25b ... Cutting blade,
26a ... Holding part,
26b ... Holding part,
27a ... Locking shaft,
27b ... Locking shaft,
28 ... Locking bolt,
31 ... Scraper section,
32 ... Claws,
51 ... Scraper section,
52 ... Flat blade,
53 ... Flat blade,

Claims (6)

The asbestos removal treatment area was isolated with an isolation sheet, and the exhaust system with a HEPA filter was operated to create a negative pressure state, and then the sprayed asbestos material was exposed .
Wherein is advanced into isolated compartments in a demolition work vehicle for implementing the operation of removing asbestos, demolition with a remotely operable pivotably mounted on the undulating possible operating boom on the body of an automotive vehicle and the car,
It is an asbestos removal system equipped with
The dismantling work vehicle is provided with a wide flat blade-shaped scraper portion for scraping asbestos at the tip portion of the operating boom.
The dismantling work vehicle
A pencher that is rotatably attached to the tip of the operating boom around the axis of the operating boom and that opens and closes by remote control.
Further equipped with a driving boom on which an operator who remotely controls the operating boom or the pencher is boarded.
The driving cabin can be maintained in an airtight state
A clean air supply means capable of supplying clean air in a pressure state higher than the ambient air pressure is provided in the operating cabin.
The clean air provision means, Ri Oh air from outside of the isolated compartments by supplying air supply hose to the operating cabin,
The scraper portion is attached to the tip of one arm portion of the pencher, and the claw portion having one or more claws is attached to the tip of the other arm portion of the pencher.
A first holding angle in which the scraper portion and the claw portion are inclined and folded in the closing direction of the pencher, and a second holding angle in which the scraper portion and the claw portion are inclined and folded in the opening direction of the pencher. An asbestos removal system characterized by a holding angle and a replaceable installation . The first aspect of the present invention is the provision of a scraper mounting angle changing means for changing the mounting angle of the scraper portion so that the contact angle of the flat blade of the scraper portion can be changed according to the wall surface or the ceiling surface facing the scraper portion. Asbestos removal system described in. The scraper portion is interchangeably attached to the tip portion of the pencher at a first holding angle and a second holding angle.
The first holding angle is a state in which the scraper portion is mounted in a folded state in the closing direction of the pencher, and the interior is formed when the pencher is rotated so that the scraper portion is in the upper position. The angle is such that the ceiling surface can be scraped off, and the interior wall surface can be scraped off when the pencher is rotated so that the scraper portion is in the lower position.
The second holding angle is a state in which the scraper portion is mounted in a state of being folded in the opening direction of the pencher, and is characterized by an angle that does not hinder the holding work accompanying the opening / closing operation of the pencher. The asbestos removal system according to claim 2. The asbestos removal system according to any one of claims 1 to 3, wherein the scraper portion is a combination of two wide flat blades in an L shape. Claims 1 to 4 include a claw attachment angle changing means for changing the attachment angle of the claw portion so that the approach angle of the claw portion of the claw portion can be changed according to the wall surface or the ceiling surface facing each other. The asbestos removal system according to any one of the above. The claw portion is interchangeably attached to the tip of the other end of the pencher at a first holding angle and a second holding angle.
The first holding angle is a state in which the claw portion is mounted in a state of being folded in the closing direction of the pencher, and the interior is formed when the pencher is rotated so that the claw portion is in the upper position. The angle is such that the ceiling surface can be scraped off, and the interior wall surface can be scraped off when the pencher is rotated so that the claw portion is in the lower position.
The second holding angle is characterized in that the claw portion is mounted in a state of being folded in the opening direction of the pencher, and is an angle that does not hinder the holding work accompanying the opening / closing operation of the pencher. The asbestos removal system according to any one of claims 1 to 5 .

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