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Method for preparing briquette coal from coking wastewater and coke powder

A technology of coking waste water and coke powder, which is applied in the direction of solid fuel, petroleum industry, fuel, etc., can solve the problems of reducing the calorific value of coal briquettes, and achieve the effects of harmless treatment, increasing calorific value, and efficient recycling

Pending Publication Date: 2022-03-25
新疆中泰创新技术研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of preparing coal briquettes, binders are added, and these binders are usually non-combustible components, so the calorific value of the briquettes will be reduced

Method used

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  • Method for preparing briquette coal from coking wastewater and coke powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of method that utilizes coking waste water and coke powder to prepare briquette disclosed in embodiment 1 of the present invention comprises the following steps:

[0036] Step S100, stirring and mixing 60 parts by weight of pulverized coal, 30 parts by weight of coke powder, 10 parts by weight of additives, and 15 parts by weight of coking wastewater;

[0037] Step S200, extruding the mixed wet powder in a double-roll molding machine to obtain a briquette wet ball;

[0038] Step S300, air-drying the wet ball of coal briquettes to make coal briquettes with water content below 5wt%.

[0039] The particle size of the above-mentioned pulverized coal is less than 2mm, the as-received total sulfur is 0.86%, and the as-received low calorific value is 22.43MJ / kg; the particle size of coke powder is less than 0.5mm, the as-received total sulfur is 0.97%, Base low fever is 28.96MJ / kg.

[0040] The additives include 25 parts by weight of carbide slag, 20 parts by weight o...

Embodiment 2

[0043] A kind of method that utilizes coking waste water and coke powder to prepare briquette disclosed in embodiment 2 of the present invention comprises the following steps:

[0044] Step S100, stirring and mixing 40 parts by weight of pulverized coal, 45 parts by weight of coke powder, 5 parts by weight of additives, and 10 parts by weight of coking wastewater;

[0045] Step S200, extruding the mixed wet powder in a double-roll molding machine to obtain a briquette wet ball;

[0046] Step S300, air-drying the wet ball of coal briquettes to make coal briquettes with water content below 5wt%.

[0047] The particle size of the above-mentioned pulverized coal is less than 2mm, the as-received total sulfur is 0.86%, and the as-received low calorific value is 22.43MJ / kg; the particle size of coke powder is less than 0.5mm, the as-received total sulfur is 0.97%, Base low fever is 28.96MJ / kg.

[0048] The additives include 20 parts by weight of carbide slag, 25 parts by weight of...

Embodiment 3

[0051] A kind of method that utilizes coking waste water and coke powder to prepare briquette disclosed in embodiment 3 of the present invention comprises the following steps:

[0052] Step S100, stirring and mixing 40 parts by weight of pulverized coal, 60 parts by weight of coke powder, 8 parts by weight of additives, and 12 parts by weight of coking wastewater;

[0053] Step S200, extruding the mixed wet powder in a double-roll molding machine to obtain a briquette wet ball;

[0054] Step S300, air-drying the wet ball of coal briquettes to make coal briquettes with water content below 5wt%.

[0055] The particle size of the above-mentioned pulverized coal is less than 2mm, the as-received total sulfur is 0.86%, and the as-received low calorific value is 22.43MJ / kg; the particle size of coke powder is less than 0.5mm, the as-received total sulfur is 0.97%, Base low fever is 28.96MJ / kg.

[0056] The additives include 30 parts by weight of carbide slag, 30 parts by weight of b...

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Abstract

The invention discloses a method for preparing briquette coal from coking wastewater and coke powder. The method comprises the following steps: stirring and mixing pulverized coal, coke powder, an additive, coking wastewater, a wet viscose waste residue material and the like, carrying out extrusion forming on the mixed wet powder material in a double-roller forming machine to obtain a briquette wet ball, and air-drying the briquette wet ball to prepare the briquette. According to the method, the existing coking wastewater can be effectively utilized to prepare the briquette coal, simple treatment of the coking wastewater is realized, and the coke powder is added into the briquette coal, so that the briquette coal has a relatively high heat value after the additive is added.

Description

technical field [0001] The invention belongs to the technical field of briquette preparation, and in particular relates to a method for preparing briquette by using coking waste water and coke powder. Background technique [0002] In the process of coal mining, it is inevitable to produce a large amount of pulverized coal. These pulverized coals are usually used as power fuels for pulverized coal boilers and are cheap. Making pulverized coal into briquettes can be used for combustion in industrial chain furnaces, and the sales price can be greatly increased. Therefore, making pulverized coal into briquettes is one of the effective means to increase the value of coal. However, in the process of preparing coal briquettes, binders need to be added, and these binders are usually non-combustible components, so the calorific value of the briquettes will be reduced. [0003] Therefore, how to improve the calorific value of briquette is particularly important. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10L5/36C10L9/10
CPCC10L5/04C10L5/36C10L9/10C10L2290/24C10L2290/32C10L2290/08
Inventor 黄戈高翔加依娜·库力斯坦马晓欣马艳丽谭瀚茗姚元宏马雄亚谢天
Owner 新疆中泰创新技术研究院有限责任公司
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