JPH0537200Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is suitable for crushing and crushing damaged refractories of refractory clad structures such as hot metal ladle, molten steel ladle, and cylinder bodies, which are often used in steel works.
This invention relates to a demolition device used for removing metal, slag, etc. that adheres to a wall surface during chiseling demolition or processing of hot metal.

<Prior Art> In ironworks, various containers and jigs lined with refractories are used to process high-temperature molten metal and slag. For example, when pre-treating hot metal using a ladle, the treatment agent charged for desulfurization or dephosphorization reacts with the hot metal or molten slag, so a free board is usually used to prevent overflow and scattering. It uses a cylindrical body called This cylindrical body, called a freeboard, has its lower end opening immersed into the hot metal of the ladle, and the treatment agent and hot metal or slag that are fed into the hot metal from the lower end of the treatment agent charging lance that penetrates from the top of the cylinder. This jig is used to cause the reaction to occur inside the cylinder, and since the lower part is immersed in hot metal, both the inner and outer walls are lined with refractories.
Only the inner walls of the upper and middle sections are covered with refractories, and can usually be divided into upper, middle, and lower sections.

Now, not only the above-mentioned freeboards, but also containers such as jigs, hot metal pots, and molten steel pots with refractories covered with them will be damaged as they are used, so they need to be repaired.Before repair, damaged refractories must be crushed and removed. In addition, when metal, slag, etc. adhere and solidify, it is necessary to remove them.

Conventionally, such dismantling and removal of refractories and removal of deposits have been carried out manually by workers using pick breakers and hammer drills. However, this work was not only inefficient but also extremely dangerous and hard labor.

For example, Utility Model Publication No. 57-108801 and Utility Model Publication No. 108801,
A dismantling device as shown in Publication No. 58-32150 was proposed. In other words, the device shown in Japanese Utility Model Application No. 57-108801 is a device that cuts the damaged refractories of a degassing immersion pipe covered with refractories with a cutting tool attached to a rotating body. Kosho 58
The device disclosed in Publication No. 32150 has an inner cylinder for a rotary cutter and an inner cylinder for a pick breaker placed in separate outer cylinders, and both outer cylinders are placed in a tilting frame. It is a device that can be tilted freely with respect to the swivel table.

<Problems to be solved by the invention> Since the device shown in the above-mentioned Japanese Utility Model Application No. 57-108801 uses a rotating cutting tool to cut the refractory, hot metal and molten steel adhere and solidify. In some cases, cutting is difficult or the cutting tool is severely worn out, and if the object is a cylindrical body with a bottom, the bottom part cannot be processed. Furthermore, the device disclosed in Japanese Utility Model Publication No. 58-32150 is equipped with a pick breaker, so it is possible to perform chipping even when hot metal or molten steel has solidified, but the movement of the pick breaker is not integrated with the inner cylinder. It only moves upward, downward, tilting and turning, and the pick breaker is not designed to make its own delicate movements near the pick breaker, making detailed chiseling work difficult. Moreover, since both the pick breaker and rotary cutter extend downward from the traveling carriage, it is difficult to select the operator's room.
Problems still remain, such as the possibility of blind spots for operators in some cases.

<Means for solving the problems> The present invention aims to eliminate the above-mentioned drawbacks and provide a device that can perform work safely and efficiently. The frame is mounted, an operator's room and a breaker part support bracket are installed on the same rotating frame, a breaker part is attached to the tip of a parallel link arm that is attached to the same bracket so as to be able to move up and down, and a fireproof part is installed below the breaker part. A turntable for placing the material structure is arranged, and the breaker part has a telescopic breaker support frame attached perpendicularly to the tip of the parallel link arm, and a breaker pivot attached to the lower end of the breaker support frame. Disassembly of a refractory cladding body comprising a frame, a breaker slide bracket attached to the breaker revolving frame so as to be able to move up and down, and a breaker slidably supported by the breaker slide bracket. It is a device.

<Embodiments and Operations> The dismantling apparatus of the present invention will be described in detail below with reference to drawings showing embodiments of the present invention.

FIG. 1 shows a side view of an embodiment of the dismantling apparatus of the present invention, and FIG. 2 shows a plan view thereof.

As shown in these drawings, a pedestal 2 is installed vertically on a pedestal 1, and a turntable 3 is installed adjacent to the pedestal 2.
is installed, and refractories are placed on appropriate parts such as the inner and outer surfaces of the cylinder a placed on the turntable 3 by operation from the operator's room 5 provided on the rotating frame 4 on the pedestal 2. It involves tearing down, dismantling and removing. That is, the rotating frame 4 placed on the pedestal 2 can be horizontally rotated by a pinion provided on the rotating shaft of the motor 6 shown in FIG. 2 and an annular rack 7 provided on the lower surface of the rotating frame 4. A breaker support bracket 8 is placed on the upper surface of the pivot point of the pivot frame 4, and a parallel link arm 9 whose base end is pivotally connected to the breaker support bracket 8 is movable up and down by a cylinder 10. A breaker support frame 11 that is vertically extendable and retractable is vertically disposed at the tip of the parallel link arm 9. This breaker support frame 11 is made up of a plurality of cylindrical bodies shaped like a so-called pull-out fishing rod.
It has 3 built-in. As described above, a breaker swing frame 14 is attached to the lower end of the extendable breaker support frame 11 so as to be horizontally swingable by means of a suitable means such as a combination of a rack and a pinion, and is driven by a motor 15 installed there. A breaker slide bracket 17 that can be raised and lowered by a cylinder 16 is attached, and a breaker 18 is slidably supported on the breaker slide bracket 17 by a sliding cylinder 19. This breaker 18 has a vibration mechanism using hydraulic or pneumatic pressure to operate it. On the other hand, the turntable 3 disposed on the base 1 may have any mechanism as long as it can rotate horizontally, but the cylindrical body is usually a heavy object, and the breaker 18 is used during disassembly work. Since the turntable 3 is subjected to a larger force, its structure must be strong, and in this embodiment, a plurality of wheels 20, 20, . . .
The wheels are mounted on a circular rail 21 laid on the top surface of the base 1, and a sprocket 23 is provided on the bottom surface of the turntable 3 with its rotation center axis 22 as the central axis, and sprockets 23 are installed at required locations. The turntable motor 24 is connected to the turntable motor 24 by a chain 25 for rotation.

In the figure, 26 is the cylindrical body a on the turntable 3.
This is a receptacle for receiving refractory debris flaked off from the refractory, and the cylinder a is placed on such a receptacle 26 directly or via a support frame (not shown), and the upper corner of the turntable 3 is The cylinder a is fixedly supported by a support arm 28 at the upper end of a cylinder support column 27 erected in the section.

In the example of the dismantling apparatus of the present invention having the above-mentioned configuration, the cylindrical body a to be dismantled is brought onto the turntable 3 using a necessary transport machine such as a crane. The container 26 is placed below the cylinder a, and the receiver 26
Alternatively, the cylinder a may be placed directly on the turntable 3, and the upper surface of the turntable 3 may be used as a receptacle for flaking refractories. In any case, the cylinder a is placed on the turntable 3 and supported by the support arm 28, and the rotating frame 4 is rotated to an appropriate position by operation from inside the operator room 5, and the elevation angle of the parallel link frame 9 is adjusted. The degree of expansion and contraction of the breaker support frame 11 is determined, the rotation position of the breaker rotation frame 14, the angle of the breaker slide bracket 17, and the sliding position of the breaker 18 are determined.
Place the tip at the desired location and at the desired angle. By adjusting the directions and angles of each of the above-mentioned members, the position and direction of the breaker 18 can be arbitrarily set as shown by imaginary lines A to F in the drawing.
In this way, you can place the breaker facing any part at the desired angle, lift or dismantle that part as necessary, then rotate the turntable or move the breaker to another location to work on the other part. Demolition work is proceeding.

<Effects of the invention> As described above, according to the dismantling apparatus of the present invention, any part of the inner wall or outer wall of the cylinder, or the bottom wall of a cylinder with a bottom, can be removed by remote control from the operator's room. The dismantling work can be done easily. In particular, in the device of this invention, the breaker support frame only moves in the vertical direction, and the movement of the part beyond the breaker rotating frame can be done within a relatively small space, making it easy to see the tip of the breaker from the operator's room. Therefore, it is possible to easily bring the breaker into contact with the desired dismantling location of the refractory-clad structure by utilizing the movement of the tip of the breaker and the rotation of the turntable.

As described above, the demolition equipment of the present invention can safely and efficiently chip, crush, and remove damaged refractories stretched from refractory structures, as well as remove deposits such as metal and slag. It has the effect of

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the demolition device of the present invention;
Figure 2 is a plan view of the same. In the figure, 2... mount, 3... turntable, 4
...Rotating frame, 5...Operator room, 9...
Parallel link arm, 11... Breaker support frame, 14... Breaker swing frame, 17... Breaker slide bracket, 18... Breaker,
a... Cylindrical body.

Claims (1)

[Scope of utility model registration request] A revolving frame capable of horizontal rotation is installed on the pedestal, an operator room and a breaker support bracket are installed on the revolving frame, and the breaker is attached to the tip of a parallel link arm that is attached to the bracket so as to be able to move up and down. Further, a turntable for placing a refractory material is arranged below the breaker section, and the breaker section is connected to a telescopic breaker support frame attached perpendicularly to the tip of the parallel link arm, and the breaker support frame. It is characterized by being composed of a breaker rotating frame attached to the lower end of the breaker, a breaker slide bracket attached to the breaker rotating frame so as to be able to move up and down, and a breaker slidably supported by the breaker slide bracket. Dismantling equipment for refractory clad structures.