JPS6225673A - Chimney lining dismantling method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for dismantling a lining formed inside a chimney.

Conventional technology When dismantling the lining, such as bricks, that has traditionally been formed inside a chimney to replace or remove it, a suspended scaffold suspended from the top of the chimney 1 is used as shown in Figure 4. 2 and a gondola! J: Person 3 was on board and was destroying and dismantling the lining 5 using a chipping tool 4 such as a breaker and a coal pick hammer.

Problems that the excuse attempts to solveHowever, according to the above-mentioned conventional construction methods, ■Noise is generated, so there is a problem that the work is subject to time and location constraints from the perspective of noise pollution prevention. In addition, safety of the worker 3 may be caused by the vibration of the chisel tool 4 causing injury to the worker's body, loss of stability due to high-altitude work requiring human power, and the scattering of the zero end of the lining 5. There was a problem with hygiene, and there was also the problem of (1) time constraints and inefficiency of the work, which required more work days and manpower, increasing the construction cost by 1J.

An object of the present invention is to provide a chimney lining dismantling method that eliminates the above-mentioned problems.

Means for Solving the Problems In order to solve the above-mentioned problems, the chimney lining dismantling method of the present invention is provided with a rod that can be freely moved in and out by at least a substantially horizontal two-way cylinder device. The lining destruction device, which consists of a blade attached to the tip of one of the rods and a plate attached to the tip of the other rod, is raised and lowered from the top of the chimney inside and can be rotated horizontally. the cylinder device is operated to push the blade into the lining formed inside the chimney to destroy the lining, and then the blade is retracted to move the lining destruction device up and down. Or, rotate it, destroy the lining at the new location using the same method as above, and then
The method is characterized in that the lining is destroyed by repeating the method.

Operation In the above configuration, when the cylinder device is operated to press the plate against the inner surface of the lining of the chimney and the blade is pushed in, the blade can remove the lining without making noise or vibration, which is similar to the conventional chisel work. is destroyed. 1f
l! ] Once the lining at a location is destroyed, the blade and the contact plate are retracted and the lining destruction device is moved up and down or rotated to a desired degree to destroy the lining at a new location. Thereafter, by repeating this method, the lining of the chimney is destroyed and dismantled.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

As shown in FIG. 3, the brazing destruction device 10 used in the construction method of this embodiment includes two hydraulic (or air) cylinder devices 12a on both end surfaces of a cylindrical intermediate member 11.
, 12b are fixedly installed. A hanging fitting 13 is attached to the center of the intermediate member 11. Each cylinder device 12
Pistons 15a and 12b are slidably fitted inside the cylinders 14a and 14b.

Rods 16a and 16b are supported on 15b so that they can move in and out.

A pointed blade 17 is attached to the tip of one of the rods 16a, and a sliding plate 18 is attached to the tip of the other rod 16b. Each cylinder 14a, 14b has one end of each of the four hoses 19 connected to each piston 15a.

It is connected so as to communicate with the internal space on both sides of 15b, and the other end is connected to the drive unit 20 (see FIG. 1).

As shown in FIGS. 1 and 2, the lining 21 to be dismantled is formed into a cylindrical shape of brick or the like with a certain space 23 separated from the inner circumferential wall of the chimney 22 made of reinforced concrete. First, a plurality of beams 24 are constructed at the top of the chimney 22,
A disk-shaped hanging scaffold 26 is suspended from the beam 24 through a lifting device 25 such as a plurality of electric chain blocks inside the chimney 22 so as to be able to rise and fall freely. Lining break 1i! i-mounted @10
is suspended horizontally from a central beam 24 via a separate lift 27 above a hanging scaffold 26 by means of a hanging fitting 13 so as to be able to rise and fall and turn freely.

A driving unit 20 is mounted on the upper surface of the hanging scaffold 26. Each of the lifting devices 25 and 27 can be remotely controlled from the top of the five tr scaffolds 26.

Next, a worker (not shown) gets on the hanging foot jIA2G and uses the lifting devices 25 and 27 to stop the hanging scaffold 26 and the lining destruction device 10 at an appropriate position near the top of the lining 21. The blade part 17 is directed to an appropriate position on the inner peripheral wall of the lining 21, and the drive unit 2o operates both cylinder devices 12a and 12b to push out the blade part 17 and push it into the inner peripheral wall of the lining 21, and at the same time, the contact plate 18 Push out and bring it into contact with the inner peripheral wall on the opposite side. As a result, the blade portion 17 destroys one portion of the lining 21.

Next, the drive unit 20 retracts the blade part 17 and the contact plate 18, and the lining destruction device 10 is rotated or raised and lowered to direct the blade part 17 to the next destruction position, and the lining 21 is destroyed in the same manner as described above. do. It is preferable to move the blade part 17 in a spiral manner in order to stabilize the disassembly and hanging.

As described above, the lining 21 is dismantled one by one starting from the top, and if the lining 21 is disassembled to an appropriate height, each lifting device 25
．． 27, the scaffolding 26 and the lining breaking IFi device 10 are lowered to an appropriate height, and then the above-mentioned dismantling work is resumed.

J:1. After that, by repeating each of the above operations, the lining 21 of the chimney 22 is sequentially dismantled starting from the top.

Effects of the Invention As described above, according to the present invention, the lining of the chimney is destroyed by using a non-vibration and non-impact lining destruction device using a cylinder device such as hydraulic pressure, so ISI noise caused by impact noise and vibration noise is eliminated. It doesn't survive. Therefore, demolition work can be carried out at any time, even in places close to private houses, hospitals, schools, etc., even if there are time and place restrictions on demolition work.In addition, it is possible to carry out demolition work at any time, even in places close to private houses, hospitals, schools, etc.In addition, it is possible to perform demolition work at any time, even in places close to private houses, hospitals, schools, etc. It is possible to work at heights safely and efficiently because it requires almost no human power, and is excellent in terms of safety, health, and efficiency.In addition, when the lining is destroyed, powder from the lining is generated.
Since there is no scattering, the working environment becomes sanitary.

Furthermore, since there are no restrictions on working time, it has many benefits such as shortening the construction period and reducing construction costs.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of one method of dismantling a chimney lining, showing an embodiment of Akira Motokawa's lining destruction device, Figure 2 is a plan view of Figure 1, and Figure 3 is an example of Akira Motokawa's lining destruction device. A fractured cross-sectional view showing,
FIG. 4 is a sectional view showing an example of a conventional demolition method. 10... Lining destruction device, 12a, 12b.
...Cylinder device, 16a, T6b...rod, 17
...Blade portion, 18...Backing plate, 21...Lining,
22... Chimney agent Yoshihiro Morimoto Figure 3, t3 /7---Sword t? tz---5 sacrifice

Claims (1)

[Claims] 1. It is equipped with a rod that can be moved forward and backward by at least a substantially horizontal two-way cylinder device, and a blade is attached to the tip of one of the rods, and a blade is attached to the tip of the other rod. A lining destruction device including a plate is suspended horizontally from the top of the chimney so that it can be raised and lowered and rotated freely, and the cylinder device is actuated to push the blade into the lining formed inside the chimney. Destroy the lining by using a method similar to the above method by retracting the blade portion and raising/lowering or rotating the lining destroyer, and then repeat the above method. A chimney lining dismantling method characterized by destroying the lining.