Moulded coal raw material suitable for coking technology

A raw material and process technology, applied in the field of briquette raw materials, can solve the problems of low economic benefits in the coking industry, expensive coking process raw materials, low-rank coals that cannot be applied on a large scale, and achieve the effect of solving low utilization and improving quality

Active Publication Date: 2015-04-01
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Pulverizing sub-bituminous coal and mixing it with additives to form low-rank coal raw material, set aside;

[0028] (2) Use tamping equipment to tamp and form the pulverized 1 / 3 coking coal to form a non-low-rank coal briquette bottom layer; and continue to add the low-rank coal raw material and 1 / 3 Coking coal, in this process, 1 / 3 coking coal is added along both ends of the coal charging box, that is, the process of 1 / 3 coking coal being charged with coal powder around low-rank coal raw materials, and the above-mentioned coal raw materials are continuously tamped by tamping equipment Forming, forming the middle layer of coal briquettes, and finally adding 1 / 3 coking coal to the middle layer of briquettes for tamping and forming, forming the top layer of non-low-rank coal briquettes, and forming the final raw material of briquettes, that is, the middle part is the body of low-rank coal briquettes , the upper, lower and left and right sides of the low-rank coal bri...

Embodiment 2

[0032](1) Pulverizing sub-bituminous coal and mixing it with additives to form low-rank coal raw material, set aside;

[0033] (2) Use tamping equipment to tamp and form the pulverized 1 / 3 coking coal to form a non-low-rank coal briquette bottom layer; and continue to add the low-rank coal raw material and 1 / 3 In this process, 1 / 3 of the coking coal is added along both ends of the coal charging box, that is, the process of 1 / 3 of the coking coal being charged with coal powder around the low-rank coal raw material, and the above-mentioned coal raw material is tamped and shaped by tamping equipment , form the middle layer of shaped coal, and finally add 1 / 3 coking coal to the middle layer of shaped coal for tamping and forming to form the top layer of non-low-rank coal shaped coal, and form the final raw material of shaped coal, that is, the middle part is the body of low-rank coal shaped coal, Its upper, lower and left and right sides are covered with 1 / 3 coking coal layer; whe...

Embodiment 3

[0037] (1) Pulverizing sub-bituminous coal and mixing it with additives to form low-rank coal raw material, set aside;

[0038] (2) Use tamping equipment to tamp and form the pulverized 1 / 3 coking coal to form a non-low-rank coal briquette bottom layer; and continue to add the low-rank coal raw material and 1 / 3 In this process, 1 / 3 of the coking coal is added along both ends of the coal charging box, that is, the process of 1 / 3 of the coking coal being charged with coal powder around the low-rank coal raw material, and the above-mentioned coal raw material is tamped and shaped by tamping equipment , form the middle layer of shaped coal, and finally add 1 / 3 coking coal to the middle layer of shaped coal for tamping and forming to form the top layer of non-low-rank coal shaped coal, and form the final raw material of shaped coal, that is, the middle part is the body of low-rank coal shaped coal, Its upper, lower and left and right sides are covered with 1 / 3 coking coal layer; wh...

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Abstract

The invention provides a moulded coal raw material suitable for coking technology, the moulded coal raw material includes a low rank coal moulded coal body formed by low rank coal and an additive, the additive is an organic binder, air isolation destructive distillation weight loss of the organic binder at 850 DEG C is less than 50%; the moulded coal raw material also includes a non low rank moulded coal layer externally coating the low rank coal moulded coal body, the non low rank moulded coal layer is prepared from one or a plurality of medium rank coal, high rank coal or medium-high rank coal, and the adding amount of the low rank coal is 50-75wt% of the moulded coal raw material. The moulded coal raw material not only solves the problems of low using degree of a stamped coke oven and excess production capacity of coking industry in the prior art, and solves the problems of restricted application due to no large-scale industrial equipment in view of the low rank coal, after the additive is mixed with the low rank coal, effective components in the additive contribute to degradation of polymer in low rank coal at high temperature and fracture of polymer in the low rank coal so as to improve the oil and gas yield in 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 coking by 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 pulverization, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B57/06C10B53/08
CPCC10B53/08C10B57/06
Inventor 林科杜明来
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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