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Upgrading process of forming material containing low-order coal and rubbish

A low-rank coal and molding material technology, which is applied in coking carbonaceous materials, petroleum industry, special forms of dry distillation, etc., can solve the problems of inability to realize resource utilization of low-rank coal and waste, and low utilization of tamping coke ovens. Achieve the effect of realizing resource utilization, overcoming utilization, and increasing oil and gas production

Inactive Publication Date: 2017-07-07
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

[0007] The technical problem solved by the present invention is to overcome the defect that the existing technology cannot realize the resource utilization of low-rank coal and garbage and the problem of low utilization of the existing tamping coke oven, and then provide a molding coke oven containing low-rank coal and garbage. Material upgrading process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) After the lignite with a G value of 0 and a volatile content of 42% is dried to a water content less than 15wt%, it is pulverized to obtain coal powder;

[0035] (2) After the combustible garbage is dried to a moisture content of 14wt%, it is pulverized to obtain garbage powder;

[0036] (3) Mix the pulverized coal and the garbage powder according to the mass ratio of 7:3, send the resulting mixture into the hydraulic press, and keep the pressure at 20MPa for 2 minutes to obtain granules with a density of 1.2g / cm 3 , the volume is 25cm 3 ;

[0037] (4) Mix the particles with a mass ratio of 7:3 and 1 / 3 coking coal to form a mixture, and use tamping equipment to tamp the mixture under 20MPa to obtain a cuboid molding material. Particles are embedded inside and on the surface, so that the outside of each particle is covered with 1 / 3 coking coal;

[0038](5) Push the molding material into a tamping coke oven for upgrading treatment, control the upgrading temperature...

Embodiment 2

[0041] (1) After the lignite with a G value of 0 and a volatile content of 45% is dried to a water content of 13wt%, it is pulverized to obtain coal powder;

[0042] (2) After the combustible garbage is dried to a water content less than 15wt%, it is pulverized to obtain a garbage powder;

[0043] (3) Mix the pulverized coal and the garbage powder according to the mass ratio of 5:5, send the resulting mixture into the hydraulic press, and keep the pressure at 18MPa for 2 minutes to obtain granules with a density of 1.3g / cm 3 , the volume is 25cm 3 ;

[0044] (4) Mix granules with a mass ratio of 4:6 and additives to form a mixture, and use tamping equipment to tamp the mixture to obtain a cuboid-shaped molding material, which is embedded inside and on the surface of the molding material. Particles are provided, so that the outside of each particle is coated with the auxiliary agent;

[0045] Wherein, the auxiliary agent is a mixture formed by mixing fat coal and sub-bitumin...

Embodiment 3

[0049] (1) After the sub-bituminous coal with a G value of 45 and a volatile content of 45% is dried to a water content of 14wt%, it is pulverized to obtain coal powder;

[0050] (2) After the compostable garbage is dried to a moisture content of 14wt%, it is pulverized to obtain garbage powder;

[0051] (3) Mix the pulverized coal and the garbage powder according to the mass ratio of 6:4, send the resulting mixture into the hydraulic press, and keep the pressure at 20MPa for 1min to obtain granules with a density of 1.4g / cm 3 , the volume is 25cm 3 ;

[0052] (4) Mix the granules with a mass ratio of 11:9 and an organic binder to form a mixture, and use tamping equipment to tamp the mixture to obtain a cuboid-shaped molding material. Inside and on the surface of the molding material Particles are all embedded, so that the outside of each particle is covered with the organic binder;

[0053] Wherein, the organic binder is a residual oil with a dry distillation weight loss o...

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Abstract

The invention provides an upgrading process of a forming material containing low-order coal and rubbish. The upgrading process includes: evenly mixing low-order coal powder with rubbish powder prior to pelletizing into particles; mixing the particles with an assistant to form a mixture; performing extrusion forming on the mixture to form the forming materials; subjecting the forming materials to upgrading treatment to obtain raw gas, tar, crude benzene and coke; wherein the assistant is medium-order coal, a mixture of the medium-order coal with low-order coal, an organic binding agent or a mixture of the organic binding agent with the low-order coal. By the arrangement, raw material cost of oil gas and coke products can be lowered, resource utilization of the rubbish can be further realized efficiently, and considerable economical benefits and certain social benefits can be achieved; the problem about limited application of the rubbish due to nonexistence of large-scale industrial equipment in the prior art is solved, shortcomings that an existing stamp-charging coke oven is low in utilization and surplus in upgrading industrial capacity are overcome.

Description

technical field [0001] The invention relates to the production field of gasification coke, in particular to a process for improving the quality of molding materials containing low-rank coal and garbage. Background technique [0002] Since the eighteenth century, coal has become one of the energy sources widely used in the human world. As far as my country's energy consumption structure is concerned, coal currently accounts for about 70% and is the main energy source for the survival of the people. According to the difference in structure and composition, coal is divided into three categories: lignite, bituminous coal and anthracite, among which bituminous coal is divided into low metamorphic bituminous coal and medium metamorphic bituminous coal, and low metamorphic bituminous coal is also called sub bituminous coal, which together with lignite is collectively referred to as "low rank coal". coal". According to statistics, my country's low-rank coal reserves account for mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/08C10B57/06C10B57/10C10B55/02
CPCC10B53/08C10B55/02C10B57/06C10B57/10
Inventor 林科杜明来赵文涛马芳白洪彬刘彦芳
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD