Briquette raw material for coking technique

Abstract

The invention provides a briquette raw material for a coking technique, which comprises a low-rank coal briquette layer formed by low-rank coal and an assistant, and a non-low-rank coal briquette layer formed by one or more of medium-rank coal, high-rank coal and medium-high-low coal, wherein the assistant is an organic binder of which the weight loss is less than 50% when being carbonized at 850 DEG C in the absence of air; the low-rank coal briquette layer is arranged on the non-low-rank coal briquette layer; and the low-rank coal accounts for 50-80 wt% of the briquette raw material. When being used for coking treatment, the briquette raw material solves the problems of low availability and surplus productivity of coking industry in the existing tamping cokery, and also solves the problem of limited application due to no large-scale industrialized equipment for low-rank coal. After the assistant and low-rank coal are mixed, the effective component in the assistant is beneficial to degradation of high-molecular polymers in the low-rank coal at high temperature and also beneficial to rupture of high polymers in the low-rank coal, thereby enhancing the oil gas yield in the technical process.

Description

technical field [0001] The invention relates to a coal raw material suitable for a coking process, in particular to a molded coal raw material for a coking process using an existing stamping furnace. Background technique [0002] Coal is the main energy source in my country, accounting for about 70% of the primary energy structure. In the long process of geological evolution, the formation of coal is affected by many factors, resulting in various types of coal. According to the structure and composition, coal is divided into three categories: lignite, bituminous coal and anthracite. Bituminous coal is divided into low-metamorphic bituminous coal and medium-metamorphic bituminous coal. Low-metamorphic bituminous coal is also called sub-bituminous coal, which is collectively referred to as "low-rank coal" together with lignite. . Low-rank coal is the product of the initial stage of coalification. It has the characteristics of low carbon content, high moisture, easy pulveriza...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the medium and low-rank coal in the prior art cannot be applied on a large scale, the raw materials of the coking process are expensive, and the economic benefits of the coking industry are low, a raw material for the coking process is provided.