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Method for installing ceramic lining plates of cyclone dust remover of blast furnace

The technology of a cyclone dust collector and a ceramic lining plate is applied in the direction of a device whose axial direction of the swirl can be reversed, a swirl device, etc., which can solve the problems of high manufacturing cost of the ceramic lining plate, slow construction progress, unfavorable shutdown of production and maintenance, etc. To achieve the effect of reducing maintenance costs, improving production capacity, and good promotion value

Active Publication Date: 2010-12-29
MCC SHIJIU CONSTR
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The manufacturing cost of the ceramic liner is high and the economy is poor; each liner needs to be pre-installed, fixed, and welded one by one during installation, the construction progress is slow, the construction cost is high, and it is not conducive to the short-term shutdown of the blast furnace for maintenance

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  • Method for installing ceramic lining plates of cyclone dust remover of blast furnace
  • Method for installing ceramic lining plates of cyclone dust remover of blast furnace
  • Method for installing ceramic lining plates of cyclone dust remover of blast furnace

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Embodiment Construction

[0045] The present invention will be described in detail below with reference to the accompanying drawings.

[0046] The specific operation steps are as follows:

[0047] 1) Select the ceramic lining plate made of zirconia mullite ceramics. The ceramic lining plate has a standard lining plate and a special-shaped lining plate. The specification of the standard lining plate is 180mm×120mm×30mm. The special-shaped ceramic liner and the tapered special-shaped ceramic liner divide the installation position inside the cyclone dust collector into six areas (see figure 1 ),

[0048] 3) Install ceramic liners in area 1,

[0049] Specific steps are as follows:

[0050] (1) First use an electric wire grinder or a wire brush to clean up the dust and rust on the inner wall surface of the dust collector housing, and clean the oil stains with acetone.

[0051] (2) Find a horizontal point at the bottom of the inner wall of the shell, use this horizontal point as a reference point, and we...

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Abstract

The invention relates to a method for installing ceramic lining plates of a cyclone dust remover of a blast furnace in an iron mill. The operation comprises the following operation steps: selecting a standard ceramic lining plate and an abnormal ceramic lining plate, cleaning the inner wall of a case body of the dust remover, finding a horizontal point at the bottom of the inner wall of the case body, positioning an installation mold in a position at one-half between two fulcrums on a horizontal line with the horizontal point as a benchmark spot-welding fulcrum and all fulcrums forming the installation benchmark line of the lining plates, inserting a taper stud bolt in the circular hole of the mold, welding the stud bolt on the steel plates of the case body by spot welding, taking down the mold and tightly welding the stud bolt, installing the lining plates layer by layer in each area, coating gumming dirt on the inner surface of the case body and the paste surfaces and the circumference of the lining plates, sheathing the hole in the middle of the lining plates on the taper stud bolt, positioning an antiskid red copper positioning ring, and tightly screwing a taper nut to fix theceramic lining plates on the case body. A blast furnace adopting the invention does not need shutdown overhauling, reduces the overhauling expense, improves the production capacity of the blast furnace, prolongs the service life of the ceramic lining plate, and has favorable popularization value. The invention has good using effect by trial.

Description

technical field [0001] The invention relates to a method for installing a ceramic lining plate of a blast furnace cyclone dust collector. Background technique [0002] Since the cyclone dust collector was adopted in China, it has been used in blast furnaces of many iron and steel plants. There are certain defects in the three commonly used methods of installing ceramic liners for cyclone dust collectors: [0003] 1. The method of connecting the ceramic liner and the dust collector shell by smearing glue, [0004] The disadvantage of this method is mainly that the working environment of the ceramic lining board is harsh, the working temperature is 300~1000 °C, the air flow is strong when the raw gas passes through, and the raw gas is extremely corrosive, so that the ceramic lining board installed by this method is easy to fall off, which affects the cyclone dust removal The service life of the blast furnace will be affected if the production is stopped frequently for mainte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B04C5/00
Inventor 甘伟黄太平吴继全李炳强
Owner MCC SHIJIU CONSTR
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