Model coal raw material for increasing quality of low-rank coal of tamping coke oven

Abstract

The invention provides a model coal raw material for increasing quality of low-rank coal of a tamping coke oven. The model coal raw material comprises a low-rank model coal layer formed by low-rank coal and an auxiliary agent. The auxiliary agent is an organic binder with weightlessness being less than 50% under destructive distillation isolated from the air at 850 DEG C. The model coal raw material also comprises a non-low-rank model coal layer formed by one or more selected from medium-rank coal, high-rank coal or medium / high-rank coal. By mass, the addition amount of the low-rank coal is 50-80 wt% of mass of the model coal raw material. By using the raw material as the model coal raw material for increasing quality of low-rank coal of the tamping coke oven, the problem that present tamping coke ovens have low availability and excess capacity exists in the coking industry is solved, and the problem that application of low-rank coal is limited because there is no large-scale industrial equipment is also solved. After the auxiliary agent is mixed with low-rank coal, active ingredients in the auxiliary agent are beneficial to degradation of high-molecular polymers in the low-rank coal at high temperature and fracture of macromolecules in the low-rank coal. Thus, output of oil gas is raised during the technological process.

Description

technical field [0002] The invention relates to a coal raw material used in tamping coke ovens, in particular to a briquette raw material suitable for upgrading low-rank coal in existing tamping furnaces, and belongs to the technical field of low-rank coal upgrading and transformation. Background technique [0004] 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 coalifi...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the low-rank coal in the prior art cannot be applied on a large scale and the problems of overcapacity in the existing coking industry and low utilization of tamping coke ovens, a low-rank coal suitable for tamping coke ovens is provided. briquette raw material