Thermal-state temping coking process

A technology of coal cake and hot state, used in coke ovens, petroleum industry and other directions, can solve the problems of reducing porosity and increasing coke strength, and achieve the effect of reducing porosity and improving tamping strength

Active Publication Date: 2008-10-08
沈阳东方钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its characteristics are that it can increase bulk density, increase coke strength, and reduce porosity. The tamping process is completed before coking. In order to ensure the stability of briquettes, the aspect ratio of briquettes is generally less than 9:1. Limits the application of tamping coking in large coke ovens

Method used

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  • Thermal-state temping coking process

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Effect test

Embodiment 1

[0011] A hot tamping process for preparing coal cakes for coking, which is characterized in that the coal is pulverized and mixed first, then enters the coal bunker, and then is sent to the feeding chute on one side of the carbonization chamber through a conveyor belt, and the coal in the carbonization chamber is When the temperature reaches 350-400°C, the tamping mechanism installed on the top of the carbonization chamber tamps the coal in the reflow state, so that the coal is directly tamped into a dense coal cake in the carbonization chamber.

Embodiment 2

[0013] A hot tamping process for preparing coal cakes for coking, which is characterized in that the coal is pulverized and mixed first, then enters the coal bunker, and then is sent to the feeding chute on one side of the carbonization chamber through a conveyor belt, and the coal in the carbonization chamber is When the temperature reaches 380°C, the tamping mechanism installed on the top of the carbonization chamber will tamp the coal in the reflow state, so that the coal can be directly tamped into a dense coal cake in the carbonization chamber.

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Abstract

A thermal-state stamping coking process is carried out by crushing coal, mixing with raw materials, entering it into bunker, delivering it to additive channel at one side of carbonizing chamber by conveyor, heating coal at 200-450degrees C, stamping the melt coal by stamping mechanism at top of carbonizing chamber, and stamping the coal into high-density coal cake. It has higher stamping strength, can improve M40 to 8-10% and decrease coke porosity.

Description

(1) Technical field: [0001] The invention relates to a coal cake production process, in particular to a process for preparing coal cakes for coking by thermal tamping. (2) Technical background: [0002] The mixed coal is tamped into a coal cake with a volume slightly smaller than that of the carbonization chamber with a tamping machine before being put into the furnace, and then pushed into the carbonization chamber for coking, which is called tamping coking. Its characteristics are that it can increase bulk density, increase coke strength, and reduce porosity. The tamping process is completed before coking. In order to ensure the stability of briquettes, the aspect ratio of briquettes is generally less than 9:1. This limits the application of tamping coking in large coke ovens. (3) Contents of the invention: [0003] The object of the present invention is to provide a process for preparing coal cakes for coking by thermal tamping, which is not only simple in process but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B45/00
Inventor 周久乐
Owner 沈阳东方钢铁有限公司
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