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Plastic seal pressing-in material for eliminating blast furnace gas blowby

A technology of blast furnace gas and press-feed materials, which is applied in the field of new materials, can solve problems such as rising gas concentration, hidden dangers of ironmaking production safety, impact on blast furnace production safety, etc., achieves the effect of stable volume without shrinkage, and radically cures blast furnace gas leakage

Active Publication Date: 2013-08-07
BEIJING RUIPU TONGCHUANG TECH DEV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, many small and medium-sized blast furnace shafts, taphole areas, and furnace bases in China often have blast furnace gas leakage, which has caused huge safety hazards to furnace operations and ironmaking production.
In response to this problem, ironworks usually use the blast furnace grouting method to block the passage of gas leakage. This method will significantly reduce the gas concentration in a short period of time after construction, but the gas concentration will rise again after a period of time. The safety of blast furnace production has a great impact
Through the analysis of the commonly used blast furnace grouting at present, it is found that the grouting method and the materials used cannot completely eliminate the channel of gas leakage from the root

Method used

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Embodiment Construction

[0016] The invention relates to a plastic sealing press-in material for eliminating blast furnace gas blow-by, which completely solves the problem of blast furnace gas blow-by, and is realized through the following technical scheme.

[0017] The plastic seal press-in material for eliminating blast furnace gas leakage is characterized in that it is composed of three materials: plastic seal press-in material, long-term plastic sealant and high-strength fast-hardening self-flowing castable;

[0018] Plastic sealing press-in material: calculated in parts by mass, of which the powder part: 30-45 parts of primary coke powder; 2-5 parts of activated silica powder; 5-15 parts of graphite; active α-Al 2 o 3 2-4 parts of fine powder; binder part: 15-30 parts of tar; 15-30 parts of decrystallized anthracene oil; 10-20 parts of thermoplastic phenolic resin; 5-15 parts of modified petroleum asphalt; 5-15 parts of modified coal tar pitch ;

[0019] Long-term plastic sealant: calculated in...

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Abstract

The invention relates to a plastic seal pressing-in material for eliminating blast furnace gas blowby, which is characterized by being formed by combining plastic seal pressing-in material, long-term plastic sealant and high-strength fast hardening self-flow castable. The plastic seal pressing-in material can be pressed in larger furnace gaps at different blast furnace gas blowby positions, and the material can keep certain plasticity at low temperature, effectively fill in the gaps to play a role in plugging a gas blowby channel, and automatically harden and keep the volume stable and unshrinking; a furnace foundation part is manufactured into a labyrinth seal structure, and a gas exposed channel is plugged by using the long-term plastic sealant; the high-strength fast hardening self-flow castable is cast outside a long-term plastic seal material to level so that a seal solidifying role is played; and the three materials are combined for application so that multi-plugging for the gasblowby channel is formed, the gas blowby channel is effectively plugged, a new blowby channel is not easy to form, and therefore, the aim of fundamentally solving the problem of the blast furnace gasblowby is achieved.

Description

technical field [0001] The invention belongs to a new type of material, in particular to a plastic sealing press-in material for eliminating blow-by of blast furnace gas. Background technique [0002] At present, many small and medium-sized blast furnace shafts, taphole areas, and furnace foundations in China often have blast furnace gas leakage, which has caused huge safety hazards to furnace operations and ironmaking production. In response to this problem, ironworks usually use the blast furnace grouting method to block the passage of gas leakage. This method will significantly reduce the gas concentration in a short period of time after construction, but the gas concentration will rise again after a period of time. The safety of blast furnace production has a great impact. Through the analysis of the commonly used blast furnace grouting at present, it is found that the grouting method and the materials used cannot completely eliminate the channel of gas leakage from the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B28/06
Inventor 钱忠俊李卫华董新清郭宪臻张晓亮于海彬刘风军魏太林孙占国李乐明
Owner BEIJING RUIPU TONGCHUANG TECH DEV
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