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Industrial furnace refractory material dismounting method

A technology of refractory materials and waste refractory materials, which is applied in the field of industrial furnace refractory material removal, can solve problems affecting the industrial furnace renovation period and refractory material removal tasks, and achieve the effects of improving demolition efficiency, reducing demolition volume, and meeting construction needs

Inactive Publication Date: 2018-07-06
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of refractory plastics and the high hardness of castables, the removal of refractory materials cannot be completed within the specified time with traditional air picks, which seriously affects the construction period of industrial furnace transformation.

Method used

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Embodiment Construction

[0023] A method for dismantling refractory materials in industrial furnaces, comprising the following steps:

[0024] 1. The furnace top can be removed by plastic:

[0025] S1. Before dismantling, fill the water beam with blanks, and at the same time reduce the gap between the blanks as much as possible;

[0026] S2. Open a skylight with a length of 6m and a width equal to the furnace width on the furnace roof on the feed side;

[0027] S3. Manually remove the refractory materials such as plastics on the skylight part of the furnace roof, and the refractory materials such as plastics fall on the surface of the billet; remove the steel structure of the skylight part at the same time, and store the dismantled steel structure;

[0028] S4. The excavator is hoisted to the billet by driving, and the refractory materials such as plastics on the billet are loaded into the scrap steel bucket through the excavator;

[0029] S5. Lift the waste refractory material in the scrap steel bu...

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Abstract

The invention discloses an industrial furnace refractory material dismounting method and relates to the technical field of industrial furnace transformation. The method comprises the steps that blanksare densely arranged on a water beam; a skylight is arranged at the furnace top of the feeding side; a refractory material of the skylight part of the furnace top is knocked out, and a steel structure is dismounted; an excavator is hoisted to the position above the blanks, and the refractory material on the blanks are put into a scrap steel bucket; the waste refractory material in the scrap steelbucket is hoisted to a lift truck to be conveyed away; the removed waste refractory material is conveyed onto a charge track through a walking beam and a charge machine, then conveyed to a blank storeroom through a charge roller way, and then descended to be stored; then water beam is dismounted and then conveyed away at first; the excavator is hoisted to the position of the furnace bottom belowthe skylight, refractory materials of the side wall and the furnace bottom are dismounted through the excavator and conveyed into the scrap steel bucket to be conveyed away; and refractory materials of the rest part in the furnace are dismounted completely and conveyed away. The effect of rapidly dismounting the industrial furnace refractory materials is achieved, and the construction demands aremet.

Description

technical field [0001] The invention belongs to the technical field of industrial furnace transformation, and in particular relates to a method for removing refractory materials of an industrial furnace. Background technique [0002] During the overhaul of industrial furnaces, it is necessary to remove refractory materials such as plastics, castables, and refractory cotton that have expired in the furnace body, and install new refractory materials such as plastics, castables, and refractory cotton. Due to the use of refractory plastics and high hardness of castables, the removal of refractory materials cannot be completed within the specified time with traditional pneumatic picks, which seriously affects the construction period of industrial furnace transformation. Only by adopting a new demolition scheme can the refractory demolition task be completed and the construction period ensured. Contents of the invention [0003] The present invention aims at the above technical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/16
CPCF27D1/1694
Inventor 刘贤荣唐运章徐永圣熊铁桥
Owner NANJING IRON & STEEL CO LTD
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