JP7381782B1 - Chimney demolition system and chimney demolition method - Google Patents

Abstract

The present invention provides a chimney dismantling system and a chimney dismantling method that enable easy disassembly of a chimney. [Solution] A chimney demolition system 1 includes a work vehicle 2 that is installed on a wall surface of a chimney top and crushes an area on the opposite side of the wall surface of the chimney top that is radially opposite to the installed side; A wire rope 3 is connected at one end to the work vehicle 2 and the other end is connected to the ground to suspend the work vehicle 2 from the top of the chimney. and a pulley 4 that guides the device so that it does not come off in a state where the device is in a fixed state. [Selection diagram] Figure 1

Description

The present invention relates to a chimney demolition system and a chimney demolition method.

When dismantling chimneys, a widely used method is to have workers in possession of a crushing tool go up to a high place and gradually crush the chimney starting from the top of the chimney. For example, Patent Document 1 discloses a method in which a temporary scaffold is installed around a chimney, and a worker performs a chimney crushing operation on the temporary scaffold.

JP2017-31681A

The method of Patent Document 1 has a problem in that it takes a lot of time and effort to assemble and dismantle the temporary scaffolding before and after the dismantling work. Additionally, there is a problem in that it is necessary to prepare a hoist to lower the crushed pieces from the temporary scaffolding and to sling the crushed pieces on the temporary scaffolding. Therefore, there is room for improvement in terms of labor saving in the series of work processes associated with dismantling chimneys.

The present invention has been made based on such a background, and an object of the present invention is to provide a chimney dismantling system and a chimney dismantling method that can easily dismantle a chimney.

In order to achieve the above object, the chimney demolition system according to the present invention includes:
a crusher installed on a wall surface of a chimney top, and crushing a region of the wall surface of the chimney top that is radially opposite to the installed side;
a rope having one end connected to the crusher and the other end connected to the ground via the chimney top to suspend the crusher from the chimney top;
a guide means that is detachably attached to the top of the chimney and guides the rope so that it does not come off when it is hung;
Equipped with.

According to the present invention, it is possible to provide a chimney dismantling system and a chimney dismantling method that enable easy disassembly of a chimney.

1 is a diagram showing the configuration of a chimney demolition system according to an embodiment of the present invention. 1 is a side view showing the configuration of a work vehicle according to an embodiment of the present invention. FIG. 1 is a plan view showing the configuration of a work vehicle according to an embodiment of the present invention. (a) is a diagram showing how a pulley according to an embodiment of the present invention is attached to the edge of the top of a chimney, and (b) is a front view showing the configuration of the pulley in (a). 1 is a flowchart showing the flow of a chimney dismantling method according to an embodiment of the present invention. FIG. 3 is a diagram showing how wire ropes and pulleys are attached in the chimney dismantling method according to the embodiment of the present invention. FIG. 3 is a diagram illustrating how a working vehicle climbs the wall of a chimney in the chimney dismantling method according to the embodiment of the present invention. FIG. 3 is a diagram illustrating how a working vehicle crushes the top of a chimney in the chimney dismantling method according to the embodiment of the present invention. FIG. 3 is a diagram showing how a working vehicle moves a pulley attached to the top of a chimney in a chimney dismantling method according to an embodiment of the present invention. FIG. 3 is a diagram showing how the top of the chimney on the side where the work vehicle has been crushed has arrived in the chimney dismantling method according to the embodiment of the present invention. FIG. 3 is a diagram showing how a working vehicle moves a pulley attached to the top of a chimney in a chimney dismantling method according to an embodiment of the present invention. FIG. 3 is a diagram illustrating how a working vehicle crushes the top of a chimney in the chimney dismantling method according to the embodiment of the present invention. FIG. 3 is a diagram showing how a working vehicle moves a pulley attached to the top of a chimney in a chimney dismantling method according to an embodiment of the present invention.

Hereinafter, a chimney dismantling system and a chimney dismantling method according to embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same or equivalent parts are given the same reference numerals.

As shown in FIG. 1, the chimney demolition system 1 is a system in which a part of the top of the chimney is crushed using the work vehicle 2 while the work vehicle 2 is suspended from a wire rope 3 suspended from the top of the chimney. . The chimney demolition system 1 includes a working vehicle 2, a wire rope 3 that is connected at one end to the working vehicle 2 and suspends the working vehicle 2, and a wire rope that is detachably attached to the top of the chimney and extends upward from the working vehicle 2. A pulley 4 on which 3 is hung is provided. The other end of the wire rope 3 is fixed to the bottom of the chimney using an anchor (not shown). That is, one end of the wire rope 3 is connected to the work vehicle 2 via the chimney top, and the other end is connected to the chimney bottom.

The work vehicle 2 is an example of a crusher that is placed on the wall side of the chimney top and suspended by a wire rope 3, and crushes a part of the chimney top. The work vehicle 2 travels on the wall of the chimney and breaks the top of the chimney while stopping on the wall of the chimney. The work vehicle 2 is communicably connected to a controller that can be operated by an operator, and each part is configured to operate based on operation signals from the controller.

As shown in FIGS. 2 and 3, the working vehicle 2 includes a working mechanism 21 for crushing the chimney top, a traveling mechanism 22 provided below the working mechanism 21 and traveling on the wall surface of the chimney, and a working mechanism 21 for crushing the top of the chimney. and an inclination adjustment mechanism 23 that is connected to the traveling mechanism 22 and adjusts the inclination of the working mechanism 21 with respect to the traveling mechanism 22. Each part of the working vehicle 2 is operated by hydraulic pressure supplied from a hydraulic pump installed in the working mechanism 21, and the hydraulic pump is operated by power obtained from the engine.

The working mechanism 21 includes a main body 21a, an arm 21b rotatably supported by the main body 21a, and an attachment 21c detachably attached to the tip of the arm 21b and capable of crushing the chimney top. The main body 21a is an example of a working vehicle main body in which a hydraulic pump and an engine are installed on a frame, and may include, for example, a cockpit where an operator can operate each part of the working vehicle 2.

The attachment 21c includes, for example, a pair of gripping members capable of crushing the chimney top and gripping a pulley. An example of such an attachment 21c is Owari. The large part may be used not only for crushing the top of the chimney, but also for attaching and removing the pulley 4 from the top of the chimney. By forming at least one of the pair of roughly divided crushing arms from an elastic member, the operator can grasp the degree of force applied to the grasped object by visually observing the deformation state of the crushing arms.

The traveling mechanism 22 includes a main body frame 22a, a pair of crawlers 22b arranged on both sides of the main body frame 22a, and a pair of winches 22c provided on the left and right sides of the main body frame 22a, respectively. The crawler 22b is also called an endless track and includes a deformable annular belt that contacts the running surface and a plurality of wheels that are arranged inside the annular belt and rotate the annular belt. The winch 22c is installed behind the main body frame 22a, and is configured to wind up or send out the wire rope 3 in a connected state.

The inclination adjustment mechanism 23 includes a rotation support pin 23a that extends in the left-right direction of the work vehicle 2 and rotatably supports the front end of the main body 21a and the main body frame 22a so that the main body 21a falls forward, and a rotation support pin 23a that rotatably supports the front end of the main body 21a and the main body frame 22a, and the main body 21a and the main body frame 22a. 22a, and a hydraulic cylinder 23b capable of pushing up the main body 21a in a direction away from the main body frame 22a.

Since the work vehicle 2 has the above-mentioned configuration, it can rise toward the top of the chimney while traveling on the chimney wall by rotating the crawler 22b in the forward direction and winding up each wire rope 3 with each winch 22c. . On the other hand, by rotating the crawler 22b in the backward direction and sending out each wire rope 3 with each winch 22c, it is possible to descend toward the bottom of the chimney while running on the wall surface of the chimney.

Moreover, since the work vehicle 2 has the above-mentioned configuration, the work vehicle 2 can perform work by operating the hydraulic cylinder 23b to tilt the work mechanism 21 forward with respect to the traveling mechanism 22 while the crawler 22b is in contact with the chimney wall surface. The posture can be adjusted so that the main body 21a of the mechanism 21 is placed on a substantially horizontal plane. Therefore, the work vehicle 2 can extend the arm 21b substantially horizontally while stopped near the chimney top, and the attachment 21c can reach the side of the chimney top opposite to the side where the work vehicle 2 is disposed.

Returning to FIG. 1, the wire rope 3 is a rope made of twisted steel wires, and is suitable for suspending heavy objects. The wire rope 3 is formed to be deformable along the circumferential surface of the roller of the pulley 4 when it is hung on the pulley 4.

The pulley 4 is an example of a guide means that is detachably attached to the top of the chimney and guides the wire rope 3 so that it does not come off when it is hung thereon. Each pulley 4 is attached to the edge of the top of the chimney side by side, and a wire rope 3 is hung on each pulley 4. Two pairs of wire ropes 3 and two pairs of pulleys 4 are used to suspend the work vehicle 2. Hereinafter, when it is necessary to distinguish between two pairs of pulleys 4, each of the pulleys 4 may be expressed as a pulley 4A and a pulley 4B. Further, the wire rope 3 hung on the pulley 4A may be expressed as a wire rope 3A, and the wire rope 3 hung on the pulley 4B may be expressed as a wire rope 3B.

As an example, in FIG. 4(a), each wire rope 3A for suspending the work vehicle 2 is hung on the two pulleys 4A, and the side of the wall surface at the top of the chimney where the work vehicle 2 is arranged (the near side) They are placed side by side. It is preferable that the two pulleys 4A are arranged so that the rotating shafts of the rollers extending in the horizontal direction extend in substantially the same direction. On the other hand, the wire ropes 3B from which the working vehicle 2 is not suspended are respectively hung on the two pulleys 4B, and are placed apart from the two pulleys 4A so as not to interfere with the hanging of the working vehicle 2. Note that the position and posture of each pulley 4B are arbitrary as long as they do not overlap the area to be crushed. The area to be crushed is a semicircular area at the top of the chimney where the four pulleys 4A and 4B are not attached.

Note that the role of each pulley 4A, 4B may be changed by changing the arrangement of each pulley 4A, 4B in FIG. 4(a). Specifically, by arranging two pairs of pulleys 4B so that the rotating shafts of the rollers extending in the horizontal direction extend in substantially the same direction, a pair of two wire ropes 3B can be used to suspend the work vehicle 2. It's okay. At this time, since the pair of two wire ropes 3A is not used for suspending the work vehicle 2, each pulley 4A is arranged so as not to overlap the area to be crushed.

As shown in FIG. 4(b), the pulley 4 is connected to a guide mechanism 41 that guides the wire rope 3 with one wire rope 3 hung thereon, and to the bottom side of the guide mechanism 41, and is connected to the top of the chimney. A mounting mechanism 42 that can be detachably attached is provided.

The guide mechanism 41 includes a C-shaped frame 41a and four rollers 41b that are rotatably supported by the frame 41a and combined in a cross-shaped configuration. One wire rope 3 is inserted through the space surrounded by the four rollers 41b. The mounting mechanism 42 includes a U-shaped frame 42a, and a stopper 42b supported movably in a direction to sandwich the object between the frame 42a and press the object against the frame 42a. The frame 41a and the frame 42a are rotatably connected around a rotation axis L extending in the direction in which the frames 41a and 42a are arranged.

Since the pulley 4 has the above-described configuration, there is no fear that the wire rope 3 will fall off while the work vehicle 2 is being suspended. Further, by simply grasping the pulley 4 using the attachment 21c provided on the work vehicle 2, the wire rope 3 can also be moved together. Then, by rotating the guide mechanism 41 around the rotation axis L relative to the mounting mechanism 42 while the mounting mechanism 42 is fixed to the chimney top, the direction of the roller 41b relative to the chimney top can be adjusted as appropriate.
The above is the configuration of the chimney demolition system 1.

(Chimney dismantling method)
Next, the flow of the chimney dismantling method carried out using the chimney dismantling system 1 according to the embodiment will be explained with reference to the flowchart of FIG. In this chimney demolition method, the chimney is virtually divided into two semicircular areas facing each other in the radial direction, and each semicircular area is gradually dismantled alternately from the top of the chimney to the bottom. do. Note that the pair of semicircular regions is not necessarily limited to the case where each region has the same shape, but includes the case where each region has a different arcuate shape.

First, a preparation process for dismantling the chimney is carried out (step S1). The flow of the preparation process will be explained below.

(preparation process)
First, the four pulleys 4 and the auxiliary rope are transported to the top of the chimney. Specifically, a worker manually transports the four pulleys 4 and the auxiliary rope to the top of the chimney. The auxiliary ropes are ropes for pulling up the four wire ropes 3 to the top of the chimney.

Next, four pulleys 4 are attached to the edges of the top of the chimney, respectively. Each pulley 4 is attached at a position that does not affect the crushing of the top of the chimney, as shown in FIG. 4(a). Specifically, of the four pulleys 4, two pulleys 4A used for suspending the work vehicle 2 in the next crushing process are arranged side by side so that the rotation axes of the rollers extending in the horizontal direction extend in substantially the same direction. Ru. Furthermore, the two pulleys 4B that are not used for suspending the work vehicle 2 in the next crushing process are placed apart from the two pulleys 4A so as not to overlap with the semicircular area to be crushed.

Next, four anchors are driven at the bottom of the chimney, and one end of the four wire ropes 3 is connected to each anchor. Next, the other ends of the four wire ropes 3 are connected to one end of the auxiliary rope carried to the chimney top, and the four wire ropes 3 are pulled up to the chimney top by pulling up the auxiliary rope.

Next, a separate wire rope 3 is hung around each pulley 4 attached to the edge of the top of the chimney, and each wire rope 3 is lowered from the outside of the chimney toward the ground. This completes the setting of the four wire ropes 3A, 3B and the four pulleys 4A, 4B to the top of the chimney, as shown in FIG. Note that in FIG. 6, illustration of the two wire ropes 3B is omitted for easy understanding. Further, reference numeral 5 in FIG. 6 is an anchor that connects the wire rope 3 to the ground.
The above is the flow of the preparation process.

Next, a first crushing process is performed in which one side of the pair of semicircular areas facing each other at the top of the chimney is targeted for crushing (step S2). The flow of the first crushing process will be explained below.

(First crushing step)
First, as shown in FIG. 6, the working vehicle 2 is moved to the side opposite to the side where the top of the chimney is to be crushed, and the two wire ropes 3A hung on each pulley 4A are connected to winches installed on the left and right sides of the working vehicle 2. Connect to 22c.

Next, as shown in FIG. 7, the work vehicle 2 is moved to the vicinity of the top of the chimney. In this process, the crawler 22b is rotated in the forward direction, and each wire rope 3A is wound up by the winches 22c provided on the left and right sides of the work vehicle 2, thereby moving the work vehicle 2 upward toward the top of the chimney on the chimney wall surface. Just let it run.

When the work vehicle 2 leaves the ground, the front end of the crawler 22b that was in contact with the ground gradually leaves the ground and contacts the chimney wall, and then the rear end of the crawler 22b also leaves the ground and touches the chimney wall. come into contact with. At this time, in order to keep the main body 21a of the working mechanism 21 horizontal, the hydraulic cylinder 23b of the inclination adjustment mechanism 23 is operated, and the working mechanism 21 is tilted so that it gradually falls forward with respect to the main body frame 22a of the traveling mechanism 22. let Due to this operation, the main body 21a of the working mechanism 21 is finally tilted in a substantially perpendicular direction with respect to the main body frame 22a of the traveling mechanism 22.

Next, as shown in FIG. 8, extend the arm 21b of the work vehicle 2 to the opposite side of the wall surface where the work vehicle 2 is placed, and use the attachment 21c to attach the chimney top on the opposite side of the wall surface where the work vehicle 2 is placed. crush a semicircular area. At this time, the two pulleys 4A and the two pulleys 4B are at positions where they do not affect the crushing, so they do not prevent the crushing of the semicircular area at the top of the chimney.

Next, using the attachment 21c, remove the two pulleys 4B that have been attached to positions that do not affect the crushing, and attach them to the edge of the new top of the chimney on the side where the chimney was crushed, as shown in FIG. At this time, each wire rope 3B also moves together with each pulley 4B. The two pulleys 4B are used to suspend the work vehicle 2 in the next crushing process, so they are arranged side by side so that the rotation axes of the rollers extending in the horizontal direction extend in substantially the same direction.

Next, the work vehicle 2 is returned to the ground and the wire ropes 3A attached to each winch 22c are removed. In the process of returning the working vehicle 2 to the ground, when lowering the working vehicle 2 to the ground, the crawler 22b may be rotated in the backward direction and the wire rope 3A may be sent out from the winches 22c provided on the left and right sides of the working vehicle 2.
The above is the flow of the first crushing process.

Returning to FIG. 5, a second crushing process is performed in which the other side of the pair of mutually opposing semicircular areas at the top of the chimney is targeted for crushing (step S3). The flow of the second crushing process will be explained below.

(Second crushing process)
First, the working vehicle 2 is moved to the side crushed in the first crushing step, and the two wire ropes 3B hung on the pulley 4B are connected to the winches 22c provided on the left and right sides of the working vehicle 2.

Next, as shown in FIG. 10, the work vehicle 2 is moved to the vicinity of the top of the chimney. In this step, the crawler 22b is rotated in the forward direction, and each winch 22c of the working vehicle 2 winds up the wire rope 3B, thereby causing the working vehicle 2 to travel upward on the chimney wall surface.

Next, the arm 21b of the working vehicle 2 is extended to the side opposite to the wall surface on which the working vehicle 2 is placed, and the two pulleys 4A attached to the part to be crushed are removed using the attachment 21c. Then, as shown in FIG. 11, it is attached to the edge of the new chimney top obtained by crushing in the first crushing step that does not affect crushing. At this time, each wire rope 3A also moves together with each pulley 4A. The two pulleys 4A are placed apart from the two pulleys 4B so as not to overlap with the semicircular area to be crushed, since the work vehicle 2 is not used for hanging in the next crushing process.

Next, as shown in FIG. 12, the semicircular area of the top of the chimney on the opposite side of the wall where the work vehicle 2 is placed is crushed using the attachment 21c. At this time, the two pulleys 4A and the two pulleys 4B are at positions where they do not affect the crushing, so they do not prevent the crushing of the semicircular area at the top of the chimney. When this process is completed, the remaining semicircular area of the chimney top is also crushed, and the height of the entire circumference of the chimney top edge is reduced.

Next, use the attachment 21c to remove the two pulleys 4A that were installed in positions that will not affect the crushing, and as shown in Figure 13, attach the two removed pulleys 4A to the edge of the new top of the chimney on the crushed side. Attach. At this time, each wire rope 3A also moves together with each pulley 4A. The two pulleys 4A are used to suspend the working vehicle 2 in the next crushing process, so they are arranged side by side so that the rotation axes of the rollers extending in the horizontal direction extend in substantially the same direction.

Next, the work vehicle 2 is lowered to the ground and the wire rope 3B attached to the winch 22c is removed.
The above is the flow of the second crushing process.

Returning to FIG. 5, after the process of step S3 is performed, it is determined whether the chimney top has reached a height above the ground that can be crushed (step S4). If it can be determined that the top of the chimney has reached a height where it can be crushed on the ground (step S4; Yes), a ground crushing process is carried out to crush the remaining part of the chimney on the ground (step S5), and all processes are completed. . On the other hand, if it can be determined that the chimney top is not at a height that can be crushed above the ground (step S4; No), the process returns to step S2 and the height of the chimney is further reduced.
The above is the flow of the chimney demolition method.

As described above, the chimney demolition system 1 according to the embodiment is installed on the wall surface of the chimney top, and crushes the area of the wall surface of the chimney top that is radially opposite to the installed side. A working vehicle 2, a wire rope 3 that is connected to the working vehicle 2 and the ground inside the chimney and suspends the working vehicle 2 from the top of the chimney, and a pulley 4 that is detachably attached to the top of the chimney and on which the wire rope 3 is hung. , is provided. Therefore, time-consuming and labor-intensive work such as assembling and dismantling temporary scaffolding can be omitted, and the chimney can be dismantled easily.

The present invention is not limited to the embodiments described above, and modifications described below are also possible.

(Modified example)
In the embodiment described above, the work vehicle 2 is suspended by two wire ropes 3, but the present invention is not limited to this. For example, the work vehicle 2 may be suspended by three or more wire ropes 3. At this time, a plurality of winches 22c corresponding to the number of wire ropes 3 may be installed on the main body frame 22a of the working vehicle 2.

In the embodiment described above, a large portion is used as the attachment 21c, but the present invention is not limited to this. For example, the large part may be replaced with a breaker and vibration may be applied to the concrete to break it.

In the embodiment described above, the attachment 21c is detachably attached to the arm 21b, but the present invention is not limited to this. Attachment 21c may be permanently attached to arm 21b.

In the embodiment described above, the work vehicle 2 is suspended from the top of the chimney by the wire rope 3, but the present invention is not limited to this. For example, if the strength of the chimney is low, the work vehicle 2 may be provided with a mechanism that clings to the wall of the chimney. As a mechanism for clinging to the chimney wall, a pair of gripping arms that are formed to match the curvature of the chimney wall and can be opened and closed are provided so as to be pivotable relative to the traveling mechanism 22, and the pair of gripping arms grip the chimney wall from both sides. It may be configured to do so.

In the embodiment described above, the work vehicle 2 is used as the crusher, but the present invention is not limited to this. A crusher other than the work vehicle 2, for example, a crusher without running performance, may be suspended from the top of the chimney to carry out the crushing work.

In the embodiment described above, the pair of winches 22c are provided side by side on the traveling mechanism 22 of the work vehicle 2, but the present invention is not limited to this. For example, a pair of winches may be provided side by side on the main body frame 22a of the working mechanism 21.

In the embodiment described above, the work vehicle 2 is provided with the winch 22c, but the present invention is not limited thereto. For example, a winch may be fixed to the ground inside the chimney, and the wire rope 3 may be wound up by the winch fixed to the ground.

In the embodiment described above, the inclination of the working mechanism 21 with respect to the traveling mechanism 22 was adjustable, but the present invention is not limited to this. Both may be fixed to the main body frame 22a of the traveling mechanism 22 such that the bottom surface portion of the main body 21a of the working mechanism 21 extends substantially vertically.

Although the wire rope 3 is used as the rope in the above embodiment, the present invention is not limited to this. For example, a fiber rope made by twisting at least one of natural fibers and synthetic fibers may be used.

In the above embodiment, the pulley 4 is used as the guide means, but the present invention is not limited to this. For example, a guide means may be used in which the guide mechanism 41 of the pulley 4 is replaced with a U-shaped member having a U-shaped cross section and movably housing the wire rope 3 therein.

In the embodiment described above, the pulley 4 includes four rollers arranged in a grid pattern, but the present invention is not limited to this. For example, a pulley configured such that one roller is rotatably supported by a U-shaped support member and the wire rope 3 is inserted between the roller and the U-shaped support member may be used.

In the above embodiment, the chimney top is virtually divided into semicircular regions, and each region is alternately crushed, but the present invention is not limited to this. It is not always necessary to virtually divide the chimney top into semicircular regions; for example, the chimney top may be virtually divided into three or four arcuate regions. At this time, the number of wire ropes 3 and pulleys 4 may be increased or decreased depending on the number of virtual divisions of the chimney top.

In the embodiment described above, the work vehicle 2 is placed outside the chimney and the anchor 5 is driven at the bottom inside the chimney, but the present invention is not limited thereto. For example, depending on the size of the chimney, the work vehicle 2 may be placed inside the chimney and the anchor 5 may be driven at the bottom of the outside of the chimney. Further, as long as the wire rope 3 can be hung stably by the pulley 4, the working vehicle 2 may be placed outside the chimney and the anchor 5 may be driven at the bottom of the outside of the chimney, or the working vehicle 2 may be placed inside the chimney. The anchor 5 may be driven at the bottom inside the chimney.

The above-mentioned embodiments are illustrative, and the present invention is not limited thereto, and various embodiments are possible without departing from the spirit of the invention described in the claims. The components described in the embodiments and modifications can be freely combined. Furthermore, inventions equivalent to the inventions described in the claims are also included in the present invention.

1 Chimney demolition system 2 Work vehicle 21a Main body 21b Arm 21c Attachment 22 Travel mechanism 22c Winch 23 Inclination adjustment mechanism 3, 3A, 3B Wire rope 4, 4A, 4B Pulley 41 Guide mechanism 42 Mounting mechanism 5 Anchor

Claims (6)

a crusher installed on a wall surface of a chimney top, and crushing a region of the wall surface of the chimney top that is radially opposite to the installed side;
a rope having one end connected to the crusher and the other end connected to the ground via the chimney top to suspend the crusher from the chimney top;
a guide means that is detachably attached to the top of the chimney and guides the rope so that it does not come off when it is hung;
A chimney demolition system equipped with The crusher includes a main body, an arm rotatably supported by the main body, an attachment provided at the tip of the arm for crushing the chimney top, and supported by the main body and connected to the rope. a winch capable of winding up the rope in the state of
The chimney demolition system according to claim 1. The attachment is configured to be able to grip the guide means,
The guide means includes a guide mechanism that guides the rope in and out in a state where the rope is hung, and a mounting mechanism that is connected to the guide mechanism and detachably attached to the top of the chimney.
The chimney demolition system according to claim 2. The crusher is supported by the main body and includes a traveling mechanism that runs on the wall surface of the chimney in the longitudinal direction of the chimney.
The chimney demolition system according to claim 2 or 3. The chimney demolition system includes four ropes and four guide means detachably attached to the chimney top and on which each rope is hung,
The crusher includes two winches provided on the traveling mechanism and arranged on the left and right sides of the traveling mechanism,
Two adjacent ropes among the four ropes are detachably connected to each winch.
The chimney demolition system according to claim 4. A chimney dismantling method that virtually divides a chimney into two semicircular regions facing each other, and dismantles each semicircular region alternately from the top of the chimney to the bottom,
installing a crusher on one semicircular area side of the chimney top;
a first crushing step of crushing the other semicircular region of the chimney top with the crusher;
installing the crusher on the other semicircular region side of the chimney top;
a second crushing step of crushing one semicircular region of the chimney top with the crusher;
Chimney demolition methods including.

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