Sealing material used between coke oven protecting plate and oven door frame and preparation method

A technology of sealing materials and protective plates, which is applied in the field of materials science, can solve the problems of poor sealing effect of sealing materials and complicated manufacturing process, and achieve the effects of improving high temperature volume stability, good thermal shock resistance, and good air tightness

Inactive Publication Date: 2018-06-22
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a sealing material used between the coke oven protection plate and the furnace door frame and a preparation method thereof. The se...

Method used

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  • Sealing material used between coke oven protecting plate and oven door frame and preparation method
  • Sealing material used between coke oven protecting plate and oven door frame and preparation method

Examples

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Effect test

Embodiment 1

[0062] A sealing material used between a coke oven protection plate and an oven door frame, characterized in that, in parts by weight, its raw material composition and content are as follows:

[0063] 100 parts of silica sol solution;

[0064] 130 parts of aggregate;

[0065] 15 parts of additives;

[0066] The silica sol solution is a dispersion of nano-scale silica particles in water, the average particle diameter of the silica particles is 10-30 nm, and the solid content is 30%;

[0067] The aggregate is a mixture of alumina particles, silica particles and talcum powder, the amount of alumina particles, silica particles and talcum powder in the mixture is calculated by mass percentage, alumina particles: silica Granules: Talc as 45%:30%:25%;

[0068] Wherein, the melting point of the alumina particles is 2054°C, the boiling point is 2980°C, and the purity is greater than 93%;

[0069] The silica particles are 3000-10000 mesh, and their melting point is 1750°C;

[0070]...

Embodiment 2

[0083] A sealing material used between a coke oven protection plate and an oven door frame, characterized in that, in parts by weight, its raw material composition and content are as follows:

[0084] 100 parts of silica sol solution;

[0085] 180 parts of aggregate;

[0086] 17 parts of additives;

[0087] The silica sol solution is a dispersion of nano-scale silica particles in water, the average particle diameter of the silica particles is 10-30nm, and the solid content is 30%;

[0088] The aggregate is a mixture of alumina particles, silica particles and talcum powder, the amount of alumina particles, silica particles and talcum powder in the mixture is calculated by mass percentage, alumina particles: silica Granules: Talc as 60%:30%:10%;

[0089] Wherein, the melting point of the alumina particles is 2054°C, the boiling point is 2980°C, and the purity is greater than 93%;

[0090] The silica particles are 3000-10000 mesh, and their melting point is 1750°C;

[0091] ...

Embodiment 3

[0104] A sealing material used between a coke oven protective plate and an oven door frame, characterized in that, in parts by weight, its raw material composition and content are as follows:

[0105]100 parts of silica sol solution;

[0106] 155 parts of aggregate;

[0107] 16 parts of additives;

[0108] The silica sol solution is a dispersion of nano-scale silica particles in water, the average particle diameter of the silica particles is 10-30nm, and the solid content is 30%;

[0109] The aggregate is a mixture of alumina particles, silica particles and talcum powder, the amount of alumina particles, silica particles and talcum powder in the mixture is calculated by mass percentage, alumina particles: silica Granules: Talc as 50%:25%:25%;

[0110] Wherein, the melting point of the alumina particles is 2054°C, the boiling point is 2980°C, and the purity is greater than 93%;

[0111] The silica particles are 3000-10000 mesh, and their melting point is 1750°C;

[0112] T...

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Abstract

The invention provides a sealing material used between a coke oven protecting plate and an oven door frame. The sealing material is prepared from 100 parts by weight of a silica sol solution, 130-180parts by weight of aggregate and 15-17 parts by weight of an additive, wherein the aggregate is prepared from 45%-60% by mass of aluminium oxide particles, 20%-30% by mass of silicon dioxide particlesand 10%-35% by mass of talcum powder; the additive is prepared from a dispersant, a thickening agent and a water-based defoamer. The invention further provides a preparation method of the sealing material. The preparation method comprises steps as follows: firstly, the additive is added to the silica sol solution, the aggregate prepared from the aluminium oxide particles, the silicon dioxide particles and the talcum powder is added to a mixed solution and uniformly mixed, and the sealing material used between the coke oven protecting plate and the oven door frame is obtained. According to thesealing material, the coke oven protecting plate and the oven door frame can be sealed effectively, and the effect is remarkable; besides, construction is convenient, and labor intensity of an operator is greatly reduced.

Description

technical field [0001] The invention belongs to the field of materials science and relates to a sealing material in the coking industry, in particular to a sealing material used between a coke oven protection plate and an oven door frame and a preparation method thereof. Background technique [0002] Coking work is an open-air operation, and the main equipment of the coke oven will be affected by factors such as climate change and furnace body expansion during the production process, which will cause partial deformation of some iron parts, resulting in fumes caused by poor sealing of furnace door frames and protective plates. leakage. From the aspects of coke oven structure design and production operation, the furnace door of the carbonization chamber adopts the furnace door frame-protection plate-spacer-carbonization chamber furnace wall structure, which can reduce the impact on the carbonization chamber furnace wall when opening and closing the furnace door. Impact damage...

Claims

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Application Information

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IPC IPC(8): C04B28/24
CPCC04B28/24C04B2111/00663C04B14/303C04B14/06C04B14/042C04B24/383C04B24/42C04B2103/408
Inventor 陆王钊金双玲金鸣林杨烁王江灿魏亚彬刘艳张睿张建勇
Owner SHANGHAI INST OF TECH
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