Coking and Coal Charging Process without Coal Tower and No Coal Charging Vehicle

Abstract

The invention relates to a coking and coal charging process without a coal tower and a coal charging car, and belongs to the field of cleaning production in coking industries. The process comprises the following steps that raw coke oven gas generated in the coking process is recovered by adopting a machine side coke oven gas recovery system, coal is charged from coal charging holes to a coke ovencarbonization chamber by adopting a coal charging system, and coal charging smoke generated in the coal charging process is recovered by adopting a coke side coal charging smoke recovery system positioned on the coke side of the coke oven carbonization chamber. The coal charging system comprises a coal storage bin and a conveying device for conveying coal to the coal storage bin. In the coking andcoal charging process, the coal tower and the coal charging car are not used, and by adopting a coal charging process for slowly charging coal in independent small coal bins, sufficient preheating and drying of coking coal can be realized to reduce generation of coking wastewater, and meanwhile, the coke quality can be improved.

Description

technical field [0001] The invention relates to a coking oven coking process, which belongs to the clean production field of the coking industry, in particular to a coking and coal charging process without a coal tower and a coal charging car. Background technique [0002] In the past 30 years, the coking technology of modern chamber coke ovens has been greatly developed. In particular, the large-scale coke ovens have created good equipment conditions for the production of high-quality coke. Technology, etc. provide effective technical support for energy saving and emission reduction in coking production. In particular, the early coking coal pretreatment technology has opened up a new channel for expanding coking coal resources. [0003] In October 1979, the No. 6 coke oven of the Muroran Coking Plant of Beikai Iron and Steel Co., Ltd. was completed and put into operation. The size of the carbonization chamber was length × width × height = 15.8m × 0.468 / 0.392m × 6.5m, and t...

AI Technical Summary

Problems solved by technology

[0014] (1) With the development of large-scale coke ovens in the existing coking coal charging process, the coal tower is built higher and higher, and the coal loading truck is getting bigger and bigger, which leads to an increase in the processing cost of the coal charging process;

[0015] (2) When the existing coking coal charging process is used to charge dry coal, the amount of coal dust is large, and the content of combustible components in the coal dust is high (fine coal dust, carbon monoxide, methane, hydrogen and other volatile organic compounds, etc.) , when it is discharged from the dust removal ground station, it will not only pollute the environment, but also cause a waste of resources;

[0016] (3) The existing coal drying pretreatment process has large investment and long process route

Removal of a small amount of water has no obvious beneficial effect on coal drying pretreatment; too much water removal requires a large investment, and the safety and environmental protection problems during the treatment process are prominent, especially the additional generation of fine dust (pM10, pM2.5, etc.) and volatilization Sexual organic pollutants (VOC class);

[0017] (4) The existing coal charging and dust removal process fails to effectively utilize the waste heat of coal charging dust

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