A Coking Method with Simple Operation and Accurate Determination of Dry Coal Proportion

Abstract

The invention relates to a coking method simple in operation and capable of accurately determining the dry coal proportion. The coking method includes: acquiring a mixed coal sample; drying part of the mixed coal sample; determining the mixed coal sample mixing proportion after the drying; subjecting different-proportion dry-wet mixed coal whose detection value is not larger than original wet coaldust detection value and measured bulk specific weight is 12% lower than the bulk specific weight of the original wet coal to a furnace-loading coking test. Compared with the prior art, the coking method has the advantages that an existing production process is not changed, adverse effects on current coking production are avoided, dry coal quantity is reduced while test efficiency is increased, the method is simple in operation and capable of accurately determining the dry coal proportion, stable dry coal proportion in production can be achieved according to the dry coal proportion determinedthrough the test, and the method is high in field combination degree, small in production fluctuation and of great significance to field production guidance.

Description

technical field [0001] The invention relates to a coking method, which precisely belongs to a coking method in which dry and wet coal are used for testing. Background technique [0002] In order to control coking wastewater from the source, save energy and reduce consumption, and increase coke production, the coking industry has developed coking coal pretreatment technology. Including the coal humidity control technology, the moisture content of the mixed coal is controlled at 6-9%, and the DAPS process will dry the moisture content of the mixed coal to below 2%. [0003] Compared with the conventional wet coal charging technology, the dry coal technology has certain improvements in production efficiency and energy saving, but all the blended coal is dried and dried to the target moisture before charging the furnace for coking. The technology of drying all the blended coal to the moisture required for coking, although it is beneficial to improve production efficiency and en...

AI Technical Summary

Problems solved by technology

[0006] Both of the above two documents have the following problems: different coal mines are used by different enterprises, most of the mines come with mixed coal, and the coal blending structure is different, so there is a gap and fluctuation in the amount of crushing and drying, and the final operation stability is affected.

In addition, when the moisture and particle size of the incoming coal change, the specific gravity of the coal pile in the carbonization chamber will change, making coke pushing difficult and affecting the coke pushing operation