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Method and device for dismantling refractory materials at arch crown of hot blast stove

A technology for hot blast stoves and vaults, which is applied to furnace crowns/roofs, brick blast furnaces, and lining repairs. It can solve the problems of high work intensity and long time consumption, and achieve the effects of high labor intensity, high efficiency, and reduced workload.

Active Publication Date: 2013-01-23
CHINA 19TH METALLURGICAL CORP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is labor-intensive and time-consuming

Method used

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  • Method and device for dismantling refractory materials at arch crown of hot blast stove
  • Method and device for dismantling refractory materials at arch crown of hot blast stove
  • Method and device for dismantling refractory materials at arch crown of hot blast stove

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with accompanying drawing.

[0029] Such as Figure 2 to Figure 5 Shown, the present invention comprises the following steps:

[0030] A. Set up a profiled steel hanger 6 on the steel platform 5 of the hot blast furnace roof, install the lifting device 7 with the profiled steel hanger 6 as the installation basis, and connect the lifting rope 9 on the lifting device 7; this step can be referred to figure 2 As shown, the steel platform 5 can be built in the past, if not, the steel platform 5 must be built in advance, and the steel platform 5 is built on the basis of the furnace shell 1. Steel hanger 6 generally adopts a frame-type structure, such as a portal frame, and hoisting device 7 is installed on the crossbeam of steel hanger 6, and hoisting device 7 adopts common electric hoist, chain hoist or hydraulic device. Suspension rope 9 can be installed in this step, also can stay to be connected in C ...

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Abstract

The invention discloses a dismantling method of refractory materials, and particularly relates to a method for dismantling refractory materials at the arch crown of a hot blast stove, which is high in construction speed, and simple and convenient to implement. According to the characteristics of self-weight falling and mutual extruding and locking function of the refractory materials at the arch crown, stopper bricks are dismantled first, and then an impact bar acts on refractory bricks on the arch crown from bottom to top, so that the refractory bricks at the arch crown move upwards to break away from self-weight falling and mutual extruding and locking states and fall off naturally; and after the refractory bricks fall off,a heat-insulation refractory material layer can be easily removed, and simultaneously, all operators only need to stand on a steel platform at the top of the hot blast stove, therefore, potential safety hazards cannot be caused when the refractory bricks fall into the hot blast stove. Compared with the conventional manner of cracking the refractory bricks, the method directly damages the extrusion locking between the refractory bricks at the arch crown, and does not need to crack the refractory bricks, thereby greatly reducing the workload and reducing a great quantity of work.

Description

technical field [0001] The invention relates to a method for removing refractory materials, in particular to a method for removing refractory materials for a hot blast stove vault. In addition, the present invention also relates to a refractory material removal device, especially a refractory material removal device for a hot blast stove vault. Background technique [0002] The hot blast stove is the main accessory equipment that provides high temperature hot air for the blast furnace, see attached figure 1 shown. The vault of the hot blast stove is generally a ball or hammer vault, and its vault refractory material can reach dozens of tons. Since the working lining of the hot blast furnace vault is made of heavy, high-strength refractory bricks that shrink and lock layer by layer, and finally locked with plug bricks, see the attached figure 1 shown. Under the action of the circular masonry falling under its own weight, mutual extrusion and locking, and the hot blast sto...

Claims

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Application Information

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IPC IPC(8): C21B9/02F27D1/02F27D1/16
Inventor 彭强付晓林汲鸿昌陈伟攀赵文东邱志峰杨德才王杰
Owner CHINA 19TH METALLURGICAL CORP
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