Local maintenance method for furnace bottom of flash furnace

A flash furnace and furnace bottom technology, used in furnace, lining repair, furnace components and other directions, can solve the problems of high economic cost, difficult to remove furnace bottom, time-consuming and laborious, etc., to reduce maintenance difficulty, reduce copper infiltration risk, The effect of ensuring the quality of masonry

Inactive Publication Date: 2021-07-09
江西铜业集团(贵溪)冶金化工工程有限公司
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  • Abstract
  • Description
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Problems solved by technology

This method is not only time-consuming and labor-intensive, but also costly
Judging from the previous cold repairs of the flash furnace, after each shutdown of the flash furnace, thick slag formed in the arch foot brick area, up to 1 meter thick, and the slag contained many kinds of metals. It is very difficult to remove all the bottom

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  • Local maintenance method for furnace bottom of flash furnace
  • Local maintenance method for furnace bottom of flash furnace
  • Local maintenance method for furnace bottom of flash furnace

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0027] Such as Figures 1 to 7 Shown, the local overhaul method of this flash furnace bottom of the present invention, the steps are as follows:

[0028] S1, build a support frame;

[0029] S2. Directly dismantle supporting objects such as steel plates, copper water jackets, steel beams and other supporting objects of the furnace wall shell of arch foot bricks in the area to be replaced, and remove them to the position below the arch foot bricks;

[0030] S3, remove the refractory bricks of the furnace wall above the area;

[0031] S4, remove the damaged arch brick 4;

[0032] S5, remove the slagging 6 with the free surface;

[0033] S6. Replace the arch foot brick 4.

[0034] When dismantling the 6 slagging places, the horizontal distance from the arch brick 4 is 300mm, ...

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Abstract

The invention discloses a local maintenance method for a furnace bottom of a flash furnace. The local maintenance method comprises the following steps that S1, a supporting frame is built; S2, supporting objects such as arch foot brick furnace wall shell steel plates, copper water jackets and steel beams in the area needing to be replaced are directly dismantled to the positions below arch foot bricks; S3, refractory bricks on the furnace wall above the area are dismantled; S4, the damaged arch foot bricks are dismantled; S5, slag with the free face is dismantled; and S6, the arch foot bricks are replaced. The refractory bricks, the arch foot bricks and the slag are dismantled through a dismantling device, the dismantling device comprises a dismantling mechanism and a collecting mechanism, and the dismantling mechanism is installed on the collecting mechanism. The maintenance method is efficient, economical and scientific, the effect of safe operation can be achieved by locally dismantling and replacing the arch foot bricks needing to be maintained instead of completely dismantling and rebuilding the arch foot bricks during cold repair of the flash furnace, and the maintenance cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal metallurgical furnaces, in particular to a partial maintenance method for the bottom of a flash furnace. Background technique [0002] Generally, during the production process of the flash furnace, when the copper water jacket and the water-cooling element above the furnace wall leak water, the water penetrates from above along the furnace wall to the arch bricks of the furnace bottom, causing powdering and deformation of the arch bricks at the bottom of the furnace, which is refractory. The original structure is changed after brick pulverization, which affects the normal production. Referring to the maintenance cases of flash furnace repair at home and abroad, the usual practice is to remove all the furnace bottom bricks and bottom slagging, and then replace them with new bricks, so as to achieve the health of the equipment. This method is not only time-consuming and labor-intensive, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/16
CPCF27D1/1621
Inventor 钟荣贵吴新明颜志刚贾小强
Owner 江西铜业集团(贵溪)冶金化工工程有限公司
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