Optimized coke oven heating management method

A management method and coke oven technology, applied in the field of coking and coking, can solve problems such as high coke energy of coke ovens, careless management of coke oven temperature, accelerated formation of nitrogen oxides, etc., and achieve the effect of improving the working environment

Inactive Publication Date: 2019-01-25
HUAIBEI MINING IND
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Problems solved by technology

The lack of meticulous temperature management of the coke oven in the workshop also leads to high coke energy per ton of coke oven production, and at the same time leads to local high temperature in the coke oven combustion chamber, which accelerates the formation of nitrogen oxides. The nitrogen oxide content in the chimney exhaust gas has been at 800-900mg / m³ for a long time high level

Method used

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  • Optimized coke oven heating management method
  • Optimized coke oven heating management method
  • Optimized coke oven heating management method

Examples

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Embodiment 1

[0030] A method for optimizing coke oven heating management in this implementation includes the following steps:

[0031] Step 1: Add 1-3 CO on-line analyzers to the side flue of the machine coke, and add 1-3 CO on-line analyzers to the top of the furnace;

[0032] Step 2, add an online analyzer for excess air coefficient in the side flue of the machine;

[0033] Step 3: gradually adjust the suction of the sub-flue, the top suction of the regenerator and the pressure of the fire hole, and make corresponding adjustments according to the oxygen content of the exhaust gas and the excess air coefficient, while taking into account the SO in the exhaust gas 2 Content changes;

[0034] Step 4: Increase the horizontal row coefficient to above 0.93, the furnace head temperature coefficient to above 0.89, the straight line uniformity coefficient to above 0.92, the stability coefficient to above 0.89, and adjust the standard temperature according to the coke pushing current and coke mat...

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Abstract

The invention discloses an optimized coke oven heating management method. The method comprises the following steps: S1, additionally arranging 1-3 CO online analyzers in a smoke distribution channel at the coke side, and additionally arranging 1-3 CO online analyzers on the top of a furnace; S2, additionally arranging one online air surplus coefficient analyzer in a smoke distribution channel at the machine side; S3, gradually adjusting the suction force of the smoke distribution channels, the suction force of the top of a regenerative chamber and the pressure of a fire observation hole, adjusting accordingly based on the oxygen content of the exhaust gas, the air surplus coefficient and the like, and taking the change of SO2 content in the exhaust gas into account. Under the premise of guaranteeing stable coke quality, the method reduces the standard temperature of a coke oven by 18 DEG C on average, and reduces the temperature of the furnace top space to 825 DEG C or below, so thatthe working environment of workers in the top of the furnace is greatly improved.

Description

technical field [0001] The invention relates to the technical field of coking and coking, in particular to a method for optimizing coke oven heating management. Background technique [0002] Linhuan Coking Co., Ltd. has 8 JN60 coke ovens with an annual output of 4.4 million tons of coke, and its products cover first-grade coke, second-grade coke and customized coke. Since it was put into production in 2007, it has basically produced secondary coke, and the requirements for the stability and uniformity of the coke oven temperature are relatively low. The lack of meticulous temperature management of the coke oven in the workshop also leads to high coke energy per ton of coke oven production, and at the same time leads to local high temperature in the coke oven combustion chamber, which accelerates the formation of nitrogen oxides. The nitrogen oxide content in the chimney exhaust gas has been at 800-900mg / m³ for a long time Left and right high levels. [0003] At the end of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B21/16
CPCC10B21/16
Inventor 张发刚杨学财张卫华
Owner HUAIBEI MINING IND
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