Method for correcting flue wall of roasting furnace

A flue wall and roasting furnace technology, which is applied to furnaces, furnace components, lighting and heating equipment, etc., can solve the problems of rising costs, increasing difficulty in temperature control, and high costs, so as to reduce maintenance costs and increase furnace loading output , the effect of reducing production costs

Inactive Publication Date: 2013-03-20
GUIZHOU BRANCH CHINA ALUMINUM IND
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Problems solved by technology

[0002] At present, many roasting furnaces have been in operation for 5 years and have reached the maintenance period. Part of the flue wall is seriously over-burned, resulting in deformation of the flue wall (commonly known as "bulging"), and even some material boxes will not be able to carry out normal loading and unloading operations. Temperature control Increased difficulty will affect furnace loading output, increase cost, and the process of repairing the flue wall is complicated and expensive

Method used

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  • Method for correcting flue wall of roasting furnace

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Embodiment

[0014] A material box with a depth of 5496mm, a width of 710mm and a length of 5298mm in the roasting furnace was deformed due to the "overburning" of the flue wall 1, and the middle width changed from the designed 710mm to 650mm, making some varieties unable to be loaded into the furnace. Use this technology to correct the material box. When producing pre-baked anodes with a length of 1513mm, a height of 554mm, and a width of 670mm, the first layer of pre-baked anodes should be installed first, and wooden sleepers and jacks should be set up at the 1750mm position of the flue wall. For the first correction, after the pressure is applied for 6 hours, tamp the filling material of the material box, remove the jack, and then install the second layer of prebaked anodes, and then carry out repeated corrections. When the correction requirements are met, this can be completed. item of work.

[0015] It should be noted that the flue wall cannot be too damaged, the refractory brick must...

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Abstract

The invention relates to a method for correcting a flue wall of a roasting furnace, which relates to the improvement of a process for roasting aluminum electrolytic pre-baked anode. The method is characterized in that the correction process is that supporting wooden sleepers are symmetrically arranged on a deformed position of a flue wall caused by the over-roasting of the roasting furnace, a hydraulic jack is arranged among between the supporting wooden sleepers, the wooden sleepers are pressurized through by the hydraulic jack, so that the deformed position of the flue wall is straightened and restored after being squeezed under the pressure effect of the wooden sleepers. The method for correcting the flue wall of the roasting furnace is characterized in that the hydraulic jack is adopted to apply the pressure, and the wooden sleepers are adopted to diffuse the pressure, so that the uniform pressure effect of the flue wall of the roasting furnace can be realized, no harm on to the flue wall exists, the correction effect is good, the repairing expense for the roasting furnace is reduced, the charge yield can be increased, and the production cost can be reduced. The method is suitable for the correction process under the situation that the deformation of the flue wall is not severe.

Description

technical field [0001] A method for rectifying the flue wall of a roasting furnace relates to an improvement of an aluminum electrolytic prebaked anode roasting process. Background technique [0002] At present, many roasting furnaces have been in operation for 5 years and have reached the maintenance period. Part of the flue wall is seriously over-burned, resulting in deformation of the flue wall (commonly known as "bulging"), and even some material boxes cannot perform normal loading and unloading operations. Temperature control The difficulty is increased, which will affect the output of the furnace, increase the cost, and the process of repairing the flue wall is complicated and expensive. Contents of the invention [0003] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art, and provide a method for correcting the flue wall of the roaster that can effectively correct the flue wall and reduce the deformation of the flue ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D1/00C25C3/12
Inventor 王保安杨爱斌耿文东张伟琦王占波
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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