Control method of tamping coking resistance

A control method and resistance technology, which is applied in the field of coking, can solve the problems of high resistance in tamping coking, damage to the furnace body, shortening the service life of coke ovens, etc., and achieve the effect of reducing resistance

Inactive Publication Date: 2020-01-21
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for controlling the resistance of tamping and coking to overcome the problems in the prior art that the resistance of tamping and coking is large, so that the furnace body is damaged and the service life of the coke oven is shortened.

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  • Control method of tamping coking resistance

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Embodiment 1-4

[0041] (1) According to the "China National Standard for Coal Classification GB5751-86", the tamping coking coal is divided into gas coal, fat coal, coking coal, 1 / 3 coking coal and lean coal.

[0042] (2) Utilize the tamping briquette expansion pressure tester to measure the maximum expansion pressure of various tamping coking single coals, and the measurement results are shown in Table 1;

[0043] (3) According to the measurement results of the maximum expansion pressure of single coal for tamping and coking coal, the coal blending structure is adjusted. After adjustment, the total weight of coal blending is 100%.

[0044] Table 1

[0045] coal type Maximum expansion pressure kg coal type Maximum expansion pressure kg coking coal 1 4.9 1 / 3 coking coal 1 1.9 coking coal 2 3.5 1 / 3 coking coal 2 0.8 coking coal 3 2.2 1 / 3 coking coal 3 3.2 coking coal 4 2.6 1 / 3 coking coal 4 1.3 coking coal 5 3.4 1 / 3 coking coal 5 2.6 ...

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Abstract

The invention relates to the field of coking, and discloses a control method of tamping coking resistance. The method comprises the following steps: (1) measuring the maximum expansion pressure of single coal for tamping coking; and (2) adjusting the structure of the coal blending for tamping coking according to the measurement result. According to the method, the maximum expansion pressure of thesingle coal for tamping coking is detected, and the expansion pressure of the blended coal is reduced by reasonably adjusting the structure of the blended coal according to the detection result, so that the tamping coking resistance is reduced, the pressure on the furnace wall in the tamping coking process is further reduced, and the service life of the tamping coke oven is prolonged.

Description

technical field [0001] The invention relates to the field of coking, in particular to a method for controlling the resistance of tamping and coking. Background technique [0002] In the process of tamping and coking, after the coal material is tamped, the bulk density can be changed from that of bulk coal to 0.75t / m 3 Left and right increased to 1.10-1.15t / m 3 , the dry distillation gas produced during the coking process of the rammed coal is not easy to precipitate, the expansion pressure of the coal particles increases, and the expansion pressure of the rammed coke oven is 6-8 times that of the top-loaded coking, which leads to the impact on the furnace during the coking process of the rammed coke. The wall has a greater pressure, which leads to a much higher coking push resistance in tamping coking than in top loading coking. The high resistance of tamping and coke pushing will cause serious damage to the furnace body, thereby shortening the service life of the tamping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B45/02
CPCC10B45/02
Inventor 黄先佑舒文东于秀芳
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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