A blast furnace coal injection device
A blast furnace coal injection and blast furnace technology, applied in the blast furnace, blast furnace details, blast furnace parts, etc., can solve the problems of coal powder scattering, affecting the blast furnace working environment, coal powder waste, etc., to reduce the coke ratio and improve the efficiency of blockage removal operations , The effect of saving production costs
Active Publication Date: 2017-12-05
武汉钢铁有限公司
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Problems solved by technology
[0006] The embodiment of the present invention provides a blast furnace coal injection device to solve the problem that in the prior art, when it is confirmed whether the coal injection gun is unblocked, the coal powder will scatter around the hearth of the blast furnace, which will affect the working environment around the hearth of the blast furnace and cause Technical Problems of Pulverized Coal Waste
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[0035] The embodiment of the present invention provides a blast furnace coal injection device to solve the problem that in the prior art, when it is confirmed whether the coal injection gun is unblocked, the coal powder will scatter around the hearth of the blast furnace, which will affect the working environment around the hearth of the blast furnace and cause Technical problems of pulverized coal waste.
[0036] The technical solution in the embodiment of the present invention is to solve the above-mentioned technical problems, and the general idea is as follows:
[0037] An embodiment of the present invention provides a blast furnace coal injection device, including:
[0038] Blast furnace coal injection supervisor;
[0039] The pulverized coal distributor is connected with the blast furnace coal injection main pipe;
[0040] The coal injection branch pipe is connected to the pulverized coal distributor through the distributor outlet coal valve, and connected to the coal ...
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The embodiment of the invention discloses a coal injection device of a blast furnace. The coal injection device comprises a blast furnace coal injection main pipe, a coal dust distributor, a coal injection branch pipe and a blast furnace blocking removal unit. The coal dust distributor is connected with the blast furnace coal injection main pipe. The coal injection branch pipe is connected with the coal dust distributor through an outlet coal valve of the distributor, and connected with a coal injection gun through a blast furnace coal valve and a coal injection gun valve which are connected in series, and the coal injection gun is connected with a blast furnace air opening. The blast furnace blocking removal unit is connected with the coal injection branch pipe through a blast furnace blocking removal valve, and the connecting position of the blast furnace blocking removal valve and the coal injection branch pipe is located between the blast furnace coal valve and the coal injection gun valve. The blast furnace blocking removal unit comprises a blast furnace blocking removal ring pipe and a blast furnace blocking removal dust hopper. When the coal injection gun is blocked, the blast furnace coal valve is closed, and the blast furnace blocking removal valve is opened; and coal dust in the coal injection gun is pushed out through hot air pressure provided by the blast furnace air opening, and the coal dust is collected through the blast furnace blocking removal ring pipe and the blast furnace blocking removal dust hopper.
Description
technical field [0001] The invention relates to the field of smelting, in particular to a blast furnace coal injection device. Background technique [0002] Blast furnace ironmaking technology is currently the main method of producing steel. The iron and steel produced by blast furnace ironmaking technology accounts for more than 95% of the world's total iron and steel production, and the coal injection system is an important equipment in blast furnace ironmaking technology. At present, in the production process of the blast furnace, the pulverized coal is generally transported to the blast furnace by adding gas through pipelines. Specifically, please refer to figure 1 , figure 1 It is a schematic diagram of a blast furnace coal injection device in the prior art, such as figure 1 As shown, the blast furnace coal injection device in the prior art includes a coal injection main pipe 101, a pulverized coal distributor 102, and a coal injection branch pipe 103. The coal injec...
Claims
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IPC IPC(8): C21B7/00
Inventor 常德本胡新明董汉东李向伟尹腾王齐武张庆喜张建鹏
Owner 武汉钢铁有限公司