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Coking technology of low-rank coal briquette raw material containing biomass

A low-rank coal and biomass technology, applied in the field of coking process, can solve the problems of inability to realize large-scale development and utilization of biomass resources, excess capacity, low utilization of tamping coke ovens, etc. , the effect of increasing production

Active Publication Date: 2016-07-06
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 biomass resources such as low-rank coal and straw cannot be developed and utilized on a large scale in the existing technology, and the problems of overcapacity in the existing coking industry and low utilization of tamping coke ovens, a new method is provided to utilize the existing Coking process of tamping furnace using low-rank coal briquette containing biomass as raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) The straw is crushed and mixed with lignite to form a low-rank coal raw material for use. The mass ratio of lignite to straw is 1:4;

[0030] (2) The crushed coking coal is tamped and formed by tamping equipment to form a bottom layer of non-low-rank coal briquette; and the low-rank coal raw materials and coking coal are continuously added to the bottom layer of non-low-rank coal briquette. The coking coal is added along the two ends of the coal loading box, that is, the coking coal is filled with pulverized coal around the low-rank coal raw materials, and the above-mentioned coal raw materials are continuously tamped and formed by the tamping equipment to form a middle layer of coal, and finally on the middle layer of coal Continue to add coking coal for tamping forming to form the top layer of non-low-rank coal briquette, and form the final briquette raw material, that is, the middle part is the low-rank coal briquette body, and the upper, lower, and left and right si...

Embodiment 2

[0034] (1) Separate domestic garbage, remove incombustible components such as glass and metal, and retain combustible components such as bark, leaves, waste paper, and fabric for use;

[0035] (2) Crush straw and spare domestic garbage and mix with lignite to form low-rank coal raw materials, which are used as raw materials. The mass ratio of lignite, straw and garbage is 3:6:1;

[0036] (3) Use tamping equipment to tamping the crushed coking coal to form a bottom layer of non-low-rank coal briquette; and continue adding the low-rank coal raw materials and coking coal to the bottom layer of non-low-rank coal briquette. The coking coal is added along the two ends of the coal loading box, that is, the coking coal is filled with pulverized coal around the low-rank coal raw materials, and the above-mentioned coal raw materials are continuously tamped and formed by the tamping equipment to form a middle layer of coal, and finally on the middle layer of coal Continue to add coking coal f...

Embodiment 3

[0040] (1) Separate domestic garbage, remove incombustible components such as glass and metal, and retain combustible components such as bark, leaves, waste paper, and fabric for use;

[0041] (2) Crush straw, spare domestic garbage, dried sludge and mix with sub-bituminous coal to form low-rank coal raw materials for use. The mass ratio of sub-bituminous coal, straw, garbage and dried sludge is 4:3 : 1:2;

[0042] (3) Use tamping equipment to tamping the crushed coking coal to form a bottom layer of non-low-rank coal briquette; and continue adding the low-rank coal raw materials and coking coal to the bottom layer of non-low-rank coal briquette. The coking coal is added along the two ends of the coal loading box, that is, the coking coal is filled with pulverized coal around the low-rank coal raw materials, and the above-mentioned coal raw materials are continuously tamped and formed by the tamping equipment to form a middle layer of coal, and finally on the middle layer of coal ...

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Abstract

The invention discloses a coking technology of a low-rank coal briquette raw material containing biomass. Firstly the low-rank coal briquette raw material containing the biomass is moulded, and then the raw material is coked. The raw material mainly comprises a low-rank coal briquette body formed of a low rank coal and the biomass, and a non-low-rank coal briquette layer covering the low-rank coal briquette body. The non-low-rank coal briquette layer is made of one or several coals selected from a medium rank coal, a high rank coal or a medium-high rank coal. The coking technology of the low-rank coal briquette raw material containing the biomass solves the problems that the availability of a present stamping charging coke oven is low, and the production power in the coking industry is excess, and solves the problem that the application of the low-rank coal is limited due to no large scale industrial devices. The availability of biomass energy such as straws and agriculture and forestry residues is improved, a new sludge processing mode is developed, and the influence of leachate generated by sludge sanitary landfills on the surrounding environment is solved.

Description

Technical field [0001] The invention relates to a coking process, in particular to a coking process using low-rank coal briquette containing biomass as raw materials, and belongs to the technical field of coal conversion. Background technique [0002] According to different structure and composition, coal is divided into three categories: lignite, bituminous coal and anthracite. Among them, bituminous coal is divided into low-metamorphic bituminous coal and medium-metamorphic bituminous coal. Low-metamorphic bituminous coal is also called sub-bituminous coal. Together with lignite, it is collectively called "low-rank coal". Low-rank coal is the product of the initial stage of coalification. It has the characteristics of low carbon content, high water content, easy pulverization, easy spontaneous combustion, high volatile content, poor water immersion strength, and poor drop strength. These characteristics limit the direct use of low-rank coal. Development and utilization, but acco...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B53/04C10B57/06
CPCY02E50/10
Inventor 林科杜明来
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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