JPH08284433A - Building demolishing method and dust scattering preventing device - Google Patents

Abstract

PURPOSE: To prevent the scattering of dust by spraying the dust scattering preventing liquid toward a demolition position of a building to be demolished by a demolishing tool, and effectively supplying the dust scattering preventing liquid to the demolition position. CONSTITUTION: An injection nozzle 15 is installed in an arm 5 near a demolishing tool 6 of a demolition working vehicle 1, and the dust scattering preventing liquid is fed by the pressurization of a high-pressure pump 13 to the injection nozzle 15, and the dust scattering preventing liquid is injected from the injection nozzle 15 to a range around of the demolishing tool 6. The dust scattering preventing liquid is sprayed to the demolition position of a building to be demolished by the demolishing tool 6, and the demolishing work is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building dismantling method for dismantling a building while preventing dust scattering, and a dust scattering prevention device for building dismantling used therefor.

[0002]

2. Description of the Related Art Conventionally, various methods have been carried out as a method for dismantling a building. One of the dismantling methods is generally called a crusher, and a trolley is equipped with an arm having a plurality of joints. However, there is known a disassembling method using a disassembling work vehicle in which a scissor-like disassembling tool called a club is attached to the tip of the arm.

This method of using a dismantling work vehicle speeds up from the ground when it is difficult or difficult to enter the building to be dismantled, or when the scaffolding for dismantling work is poor. In addition, there is an advantage that it can be dismantled safely.

[0004]

However, in the conventional dismantling method using the dismantling work vehicle described above, it is impossible to sufficiently spray water to the dismantled portion by spraying water from a remote place, and there is a risk. There has been a problem that it is not possible to sufficiently spray water or the like on the dismantled portion, and it is not possible to prevent scattering of dust generated from the dismantled portion.

Further, depending on the type of building material constituting the building, it is impossible to dismantle it individually by a method suitable for the building material. For example, when a building material containing asbestos is used. In addition, there is a problem that carcinogenic asbestos dust may be scattered around because it will be crushed and demolished together with concrete and the like.

In view of the above-mentioned conventional problems, the present invention proposes a building dismantling method for dismantling a building while preventing dispersal of dust by using a dismantling work vehicle, and a dust dispersal prevention device for building dismantling used therefor The purpose is to do.

[0007]

In order to achieve the above-mentioned object, the present invention, if indicated by reference numerals in the drawings, is in the vicinity of the dismantling tool 6 of the dismantling work vehicle 1 in claim 1. The spraying means 15 is attached to the arm 5, and the dust scattering prevention liquid is pressure-fed to the spraying means 15 so that the dust scattering prevention liquid is ejected from the spraying means 15 to the peripheral portion around the dismantling tool 6, and the dismantling tool 6 is used for construction. It employs a configuration in which dust scattering prevention liquid is sprayed on the dismantling location of an object to perform dismantling work.

Further, according to the second aspect, the dust scattering prevention liquid spraying means 15 and the dust scattering prevention liquid storage tank 11 are provided.
A dust-scattering prevention liquid pressure-feeding means 13, a hose 14 connecting the pressure-feeding means 13 and the spraying means 15, and a mounting means 16 for mounting the spraying means 15 and appropriate parts of the hose 14 at appropriate positions of the dismantling work vehicle 1, respectively. 22 is adopted.

Further, in the third aspect, the spraying means 15
The arrangement according to claim 2 is provided with means 19 for arbitrarily adjusting the direction of the remote control from the ground.

Further, according to the present invention, the spraying means comprises a spraying nozzle 15, and the spraying nozzle 15 has a nozzle 15a for spreading and spreading the chemical solution in the lateral direction and a nozzle 15b for spreading and spreading the chemical solution in the vertical direction. The two-stage type nozzle is used.

According to a fifth aspect of the present invention, a falling object avoiding plate is attached to the upper portion of the spraying nozzle.

Further, in claim 6, a plurality of storage tanks 11a and 11b respectively containing the dust scattering prevention liquids of different types, and any one or a plurality of storage tanks 11 are provided.
The structure according to claim 2 is provided in which means 12 for supplying different kinds of dust scattering preventing liquids from a and 11b to the pressure feeding means 13 by switching with a valve are provided.

Further, in claim 7, the mounting means 1
6 and 22 employ the configuration according to claim 2, which is detachable from the dismantling work vehicle.

Further, in claim 8, the mounting means 1
The configuration according to claim 7 is adopted, in which 6 and 22 are provided with magnet chucks 17 and 23.

[0015]

In the first aspect of the present invention, the dust scattering prevention liquid is ejected from the arm 5 near the dismantling tool 6 of the dismantling work vehicle 1 by the spraying means 15 to the peripheral part around the dismantling tool 6. The dust scattering prevention liquid can be sprayed mainly on the dismantled portion of the building by the dismantling tool 6, and the dust scattering prevention liquid can be effectively supplied to the dismantled portion to prevent the dust scattering.

In the second aspect, the dust scattering prevention liquid spraying means 15 is provided in the arm 5 near the dismantling tool 6 of the dismantling work vehicle 1.
The dust scattering prevention liquid storage tank 11 and the pressure feeding means 13 are arranged on the ground, and the pressure feeding means 13 and the spraying means 15 are connected by the hose 14 and the hose 14 is attached to the mounting means 22. By mounting the dismantling work vehicle 1 at a proper position, the dismantling method according to claim 1 can be easily performed using the existing dismantling work vehicle 1.

According to a third aspect of the present invention, the disassembling tool 6 is used at any angle by adjusting the direction of the spraying means 15 in the vertical direction or the horizontal direction by remote control from the ground. , The dust scattering prevention liquid can be sprayed precisely to the dismantled portion.

According to another aspect of the present invention, the spraying nozzle 15 serving as spraying means is a nozzle 1 for spraying a chemical solution in a laterally long direction.
5a and the two-stage nozzle of the nozzle 15b for diffusing and dispersing the chemical liquid in the longitudinal direction, the chemical liquid can be uniformly dispersed over a wide range in the horizontal and vertical directions.

According to the present invention, since the falling object avoiding plate is attached to the upper side of the spraying nozzle, even if an unexpected falling object is found during the dismantling work, the falling object avoiding plate The spray nozzles located below can be protected without damage.

According to the sixth aspect, the dust scattering prevention liquid can be arbitrarily prepared and pressure-fed from a plurality of storage tanks 11a and 11b respectively containing water, various asbestos scattering prevention agents and solidifying chemicals, It is possible to easily switch spraying of only water or spraying of a mixed solution of water and various chemicals according to the object to be dismantled, and it is possible to effectively prevent dust at low cost. In particular, at the time of disassembling asbestos or the like, it is possible to reliably prevent the scattering of asbestos by suppressing the scattering of asbestos dust and spraying a chemical solution or a diluting solution thereof for infiltrating or solidifying the asbestos to contain or wet it.

According to the present invention, since the spraying means 15 and the hose 14 can be detachably attached to the dismantling work vehicle 1 by the detachable attaching means 16 and 22, it is portable and can be used on site. If necessary, a dust scattering prevention device can be immediately attached, or when it is no longer needed, it can be removed and replaced with another dismantling work vehicle, which enables highly mobile use.

In the eighth aspect, the mounting means 16 and 22
Since it has the magnetic chucks 17 and 23, it can be attached and detached extremely easily and with good workability.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a dismantling work vehicle equipped with the dust scattering prevention device of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a dismantling work vehicle generally called a crusher or a crushing vehicle, which is equipped with three arms 3, 4 and 5 connected to a carriage 2 by joints 7, A scissors-like disassembling tool 6 called a club is attached to the tip of the tip arm 5, and the position and orientation of the disassembling tool 6 can be arbitrarily set in the same direction by adjusting the angle of each joint 7 by the cylinder device 8. Is configured.

Reference numeral 10 denotes a dust scattering prevention apparatus according to the present invention mounted on the dismantling work vehicle 1, which is a water tank 11a for storing water and a chemical solution for suppressing asbestos dust scattering prevention and a chemical liquid for permeating or solidifying inside. Tank 11b
And a suction kit 12 configured to be able to suck water or a chemical solution from the water tank 11a and the chemical solution tank 11b alone or in a mixture at an arbitrary ratio.
And a high-pressure pump 13 having a driving gasoline engine as a pressure-feeding means and a plunger pump, and a high-pressure hose extending from the high-pressure pump 13 and arranged along the carriage 2 and the arms 3, 4, and 5. 14 and an injection nozzle 15 as a spraying device mounted on the upper surface at an appropriate distance from the tip of the tip arm 5.

The injection nozzle 15 is attached to the tip arm 5 so as to be attachable / detachable by the attaching means 16 so that the vertical movement can be adjusted and the angle can be adjusted. As shown in FIGS. 2 and 3, the mounting means 16 includes a magnet chuck 17 for removably mounting on the tip arm 5 and a rotary actuator 19 for adjusting the vertical ejection angle from the ejection nozzle 15. Is equipped with. The magnet chuck 17 is configured to perform adsorption and desorption by switching the knob 17a on and off. An L-shaped bracket 18 is attached to the magnet chuck 17, and an upper and lower bracket provided on the bracket 18 is attached. Direction long hole 1
8a, the output shaft 19 of the rotary actuator 19 is inserted, and in this state, the bracket 18 is sandwiched between the rotary actuator 19 and the holding block 20 to form the elongated hole 18a.
Is held vertically by a set screw 21a, the injection nozzle 15 is inserted and held in the holding block 20, and is fixed to the holding block 20 by a set screw 21b so that the ejection position can be adjusted.

Further, a fall-preventing plate 18b is fixed to the upper end of the bracket 18 so as to prevent a fallen object which accidentally falls during the disassembling work from colliding with the injection nozzle 15 or the like.

In FIG. 3, 29a and 29b are air hoses for driving the rotary actuator 19, and 22 in FIG. 1 is the high-pressure hose 14 and the air hoses 29a and 29b attached to the carriage 2 and the arms 3, 4 and 5 at appropriate positions. It is a mounting means for doing.

The injection nozzle 15 may have a single nozzle as shown in FIGS. 2 and 3, but as shown in FIG. 4 (a), it spreads in a lateral direction at a certain angle. It is preferable to use a two-stage type nozzle having a nozzle 15a for spraying and a nozzle 15b for spreading and spraying in a vertical direction at a certain angle, and it is preferable to use one of which can be arbitrarily switched. In this way, by simultaneously using the nozzle 15a for diffusing and dispersing the chemical solution in the lateral direction and the nozzle 15b for diffusing and dispersing the chemical solution in the longitudinal direction at the same time, as shown in FIG. The chemical solution can be sprayed uniformly and uniformly, and the dust scattering prevention effect can be more effectively enhanced.

High-pressure hose 14 and air hoses 29a, 29
As shown in FIG. 5, the mounting means 22 of b is configured by fixing the hose clamp 24 to the magnet chuck 23,
The hose clamp 24 includes a pair of upper and lower clamp members 25a,
A rubber bush 27 is fitted into a holding recess 26 formed on the opposite edge of 25b, and each hose 14, 29a, 29b is inserted into the rubber bush 27, and clamp members 25a, 25b are fastened with bolts 28. By doing so, each hose 14, 29a, 29b is held, and the magnet chuck 23 is configured to be detachably attached to the trolley 2 and the arms 3, 4, 5 at appropriate positions.

Further, as shown in FIG. 6, a high pressure hose 14 for pressure feed of chemical liquid arranged in the central portion and air hoses 29a, 29b arranged on both sides thereof are fixed by a clamp band 31 to a clamp base 30 fixed to a magnet chuck 23. You may do it. And the magnet chuck 23
In order to prevent the high-pressure hose 14 or the like from falling off from a high place due to an unexpected detachment, it is preferable to attach a drop-prevention string 32 made of a metal strip such as wire over the clamp base 30 and the arms 3, 4, 5.

In the above structure, the injection nozzle 15 is arranged at a position, for example, about 6 m behind the tip of the tip arm 5 of the existing dismantling work vehicle 1 in order to prevent scattering of dust when demolishing a building. The high-pressure hose 14 and the air hoses 29a and 29b which are attached by the magnet chuck 17 and are connected to the injection nozzle 15 and the rotary actuator 16.
While extending along the arms 5, 4, and 3, the mounting means 22 is mounted on the arms 5, 4, 3 and the trolley 2 at appropriate positions by the magnet chuck 23, and the hose clamp 24 of the mounting means 22, The high pressure hose 14 and the air hoses 29 a and 29 b are held at 31. In addition, dismantling work vehicle 1
A high-pressure pump 13 and a storage tank 11 are arranged near the
The high pressure hose 14 is connected to the high pressure pump 13, the high pressure pump 14 is connected to the storage tank 11 via the suction kit 12, and the air hoses 29a and 29b are connected to an air control unit (not shown).

Next, each cylinder device 8 is operated to operate as shown in FIG.
As shown in FIG. 3, the dismantling tool 6 at the tip of the tip arm 5 is positioned opposite to the dismantling location, and prior to the disassembling work by the dismantling tool 6, the high-pressure pump 13 is operated to operate the tip arm 5
Pair of nozzles 15 arranged at a proper distance from the tip of the nozzle
As shown by the arrow in FIG. 1, the dust scattering prevention liquid is diffused and jetted from the two-stage jet nozzle 15 composed of a and 15b in the horizontal and vertical directions. As a result, the dust scattering prevention liquid is evenly spread over the wide area in the horizontal and vertical directions toward the location where the building is to be demolished by the disassembly tool 6. At that time, the rotary actuator 19 is operated from the ground to adjust the vertical direction of the injection nozzle 15 and the discharge pressure and the flow rate of the high-pressure pump 13 to adjust the dismantling tool 6 at any angle. In this case, the dust scattering prevention liquid can be effectively sprayed to the dismantled portion accurately. Further, it is preferable that the spraying range A of the dust scattering prevention liquid is about 3 m forward from the vicinity of the base end of the disassembling tool 6 and about 3 m left and right, as shown by a phantom line in FIG. The spraying range A can also be appropriately adjusted depending on the discharge pressure and discharge flow rate of the high-pressure pump 13 and the injection direction of the injection nozzle 15. Thus, it is possible to effectively prevent the scattering of dust generated during dismantling with the dust scattering prevention liquid diffused in the horizontal and vertical directions.

Further, in this embodiment, the water contained in the water tank 11a and the chemical liquid tank 1 are used as the dust scattering prevention liquid.
Since the drug solution stored in 1b can be arbitrarily prepared through the suction kit 12, it is possible to spray only water or a mixed solution of water and an asbestos dust scattering inhibitor depending on the object to be dismantled. Switching can be performed easily, and dust can be effectively prevented at low cost. For example, at the time of disassembling asbestos, etc., it is possible to reliably prevent the scattering of asbestos by spraying a solidifying agent consisting of a chemical solution that suppresses asbestos dust scattering and internal permeation or solidification or a diluted solution thereof to contain asbestos or moisten it. it can.

Further, the dust scattering prevention device 10 of this embodiment
Has the injection nozzle 15, the high-pressure hose 14, and the air hoses 21a and 21b detachably attached to the dismantling work vehicle 1 by the magnet chuck 17 and the magnet chuck 23. Therefore, it is possible to immediately install the dust scattering prevention device 10 as needed on site,
When it is no longer needed, it can be removed and replaced with another dismantling work vehicle 1, which enables highly mobile use.

In the above embodiment, the rotary actuator 19 having a horizontal axis of rotation is used to adjust the injection direction from the injection nozzle 15 in the vertical direction. By adding an actuator, the lateral injection direction can also be adjusted.

[0037]

According to the first aspect of the present invention, the dust scattering prevention liquid is ejected from the arm in the vicinity of the dismantling tool of the dismantling work vehicle by the spraying means so that the dismantling tool can be used to dismantle the building. The dust scattering prevention liquid can be efficiently sprayed, and the dust scattering prevention liquid can be effectively supplied to the dismantled portion to prevent the dust scattering.

According to the second aspect, the dust scattering prevention liquid spraying means is attached to the arm near the dismantling tool of the dismantling work vehicle by the mounting means, and the dust scattering prevention liquid storage tank and the pressure feeding means are arranged on the ground. The dismantling method according to claim 1 can be easily performed by using an existing dismantling work vehicle by connecting the pressure feeding means and the spraying means with a hose and mounting the hose at a proper position of the dismantling work vehicle by the mounting means. can do.

According to the third aspect, by adjusting the direction of the spraying means in the vertical direction or in the horizontal direction, the dust scattering can be accurately directed toward the dismantled portion regardless of the angle at which the dismantled tool is used. The prevention liquid can be sprayed down.

According to the fourth aspect, since the spray nozzle as the spraying means comprises the two-stage nozzle of the nozzle for spreading and spreading the chemical liquid in the horizontal direction and the nozzle for spreading and spraying the chemical liquid in the vertical direction, the nozzle is spread in the horizontal and vertical directions. The chemical solution can be sprayed uniformly over a wide range, and dust can be prevented from scattering more effectively.

According to the fifth aspect, since the falling object avoiding plate is attached to the upper side of the spraying nozzle, even if an accidental falling object is present during the dismantling work, the falling object avoiding plate is used below the falling object avoiding plate. It is possible to protect the spray nozzle located at the position without damage and to use it safely.

According to the sixth aspect, the dust scattering prevention liquid can be arbitrarily prepared and pressure-fed from a plurality of storage tanks respectively containing water and various dust scattering prevention liquids, and water can be prepared according to the object to be disassembled. It is possible to easily switch the spraying of the chisel or the spraying of the mixed liquid of water and various chemicals, and it is possible to effectively prevent dust at low cost.

According to the present invention, since the spraying means and the hose can be detachably attached to the dismantling work vehicle, it has portability, and a dust scattering prevention device can be installed immediately if necessary on site or if necessary. When it disappears, it can be removed and replaced with another dismantling work vehicle, which enables highly mobile use. Further, naturally, the dismantling work vehicle can be easily mounted without special processing.

According to the eighth aspect, since the mounting means is a magnet chuck, the mounting and dismounting can be performed very easily and with good workability.

[Brief description of drawings]

FIG. 1 is a front view showing a state of demolition work of a building in an embodiment of the present invention.

FIG. 2 is a front view of an injection nozzle mounting means in the embodiment.

FIG. 3 is a side view of mounting means of the injection nozzle in the embodiment.

FIG. 4A is a front view of another example of a two-stage type injection nozzle, and FIG. 4B is a diagram showing a state of diffusion of a dust scattering preventing agent by the two-stage type injection nozzle.

FIG. 5 is a perspective view of a hose mounting means of the embodiment.

FIG. 6 is a perspective view showing another mounting means of the hose of the embodiment.

[Explanation of symbols]

 1 Dismantling Work Vehicle 5 Tip Arm 6 Dismantling Tool 10 Dust Scattering Prevention Device 11 Storage Tank 11a Water Tank 11b Chemical Solution Tank 12 Suction Kit 13 High Pressure Pump 14 High Pressure Hose 15 Injection Nozzle 15a Horizontal Longitudinal Spray Nozzle 15b Vertical Longitudinal Spray Nozzle 16 Mounting Means 17 Magnet chuck 18 Bracket 18a Long hole 18b Falling object avoiding plate 19 Rotary actuator 22 Mounting means 23 Magnet chuck

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Minoru Yamada Minoru Yamada 14-10 Nishinakajo-cho, Ibaraki-shi

Claims (8)

[Claims] 1. A spraying means is attached to an arm near a dismantling tool of a dismantling work vehicle, and a dust scattering prevention liquid is pressure-fed to the spraying means so that the dust scattering preventing liquid is ejected from the spraying means to a range centered on the dismantling tool. , A method for dismantling a building, characterized in that a dust scattering prevention liquid is sprayed on a dismantling site of the building by a dismantling tool to perform a dismantling operation. 2. A dust scattering prevention liquid spraying means, a dust scattering prevention liquid storage tank, and a dust scattering prevention liquid pressure-feeding means,
A dust scattering prevention device for dismantling a building, comprising: a hose that connects a pressure feeding means and a spraying means, and a mounting means that mounts the spraying means and an appropriate portion of the hose at appropriate positions of a dismantling work vehicle, respectively. 3. The dust scattering prevention device for building demolition according to claim 2, further comprising means for adjusting the direction of the spraying means. 4. The spraying means comprises a spraying nozzle, and the spraying nozzle comprises a nozzle for spreading and spraying a chemical solution in a longitudinal direction.
The dust scattering prevention device for building demolition according to claim 2, comprising a two-stage nozzle that is a nozzle that diffuses and sprays a chemical solution in a laterally long direction. 5. The dust scattering prevention apparatus for dismantling a building according to claim 4, wherein a falling object avoiding plate is attached to an upper side of the spray nozzle. 6. A plurality of storage tanks respectively containing different kinds of dust scattering prevention liquids, and various dust scattering prevention liquids are appropriately supplied from any one or a plurality of storage tanks to the pressure feeding means by switching valves. The dust scattering prevention device for building demolition according to claim 2, further comprising means. 7. The dust scattering prevention apparatus for dismantling a building according to claim 2, wherein the mounting means is detachable from the dismantling work vehicle. 8. The dust scattering prevention apparatus for dismantling a building according to claim 7, wherein the mounting means includes a magnet chuck.