Preparation method of composite pulverized coal added with cold-rolled waste emulsion residues, and composite pulverized coal

A technology for the preparation of waste emulsion and pulverized coal, which is applied in the petroleum industry, solid fuel, fuel and other directions, can solve the problems of high treatment cost, poor treatment effect and complex treatment process of cold rolling waste emulsion slag, so as to realize the utilization of waste. , easy to operate, low cost of preparation

Inactive Publication Date: 2018-10-19
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned treatment method of waste emulsion slag from cold rolling has problems such as high treatment cost, complicated treatment process and poor treatment effect.

Method used

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  • Preparation method of composite pulverized coal added with cold-rolled waste emulsion residues, and composite pulverized coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of composite pulverized coal with cold-rolled waste emulsion slag added in this embodiment includes the following steps: first put the cold-rolled waste emulsion slag and economizer sedimentation ash into a mixer in a weight ratio of 1:2.5 and stir well The mixed material is obtained; the mixed material and steam coal are put into a mixer in a weight ratio of 1:9 for stirring, and then put into a coal mill for pulverization to obtain composite coal powder.

[0026] The weight loss of the composite coal powder prepared by the above composite coal powder preparation method of adding waste emulsion slag from cold rolling, heating the composite coal powder at 850°C for 5min, 10min, 15min, 20min, 25min, 30min, 35min, and 40min As shown in Table 1.

Embodiment 2

[0028] The preparation method of composite pulverized coal with cold-rolled waste emulsion slag added in this embodiment includes the following steps: first put the cold-rolled waste emulsion slag and economizer sedimentation ash into a mixer in a weight ratio of 1:2.5 and stir well The mixture is obtained; the mixture and steam coal are put into a mixer in a weight ratio of 2:8 for stirring, and then put into a coal mill for pulverization to obtain composite pulverized coal.

[0029] The weight loss of the composite coal powder prepared by the above composite coal powder preparation method of adding waste emulsion slag from cold rolling, heating the composite coal powder at 850°C for 5min, 10min, 15min, 20min, 25min, 30min, 35min, and 40min As shown in Table 1.

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Abstract

The invention discloses a preparation method of composite pulverized coal added with cold-rolled waste emulsion residues, and the composite pulverized coal. The preparation method of the composite pulverized coal added with the cold-rolled waste emulsion residues comprises the following steps of firstly placing the cold-rolled waste emulsion residues and economizer fallout ash into a stirrer according to a certain weight proportion, fully stirring uniformly to obtain a mixture; placing the mixture and steam coal into the stirrer according to a certain weight proportion, stirring, and then placing into a coal pulverizer, and powdering to obtain the composite pulverized coal. The preparation method of the composite pulverized coal added with the cold-rolled waste emulsion residues provided by the invention is simple in preparation process, simple and convenient to operate, and low in preparation cost, the cold-rolled waste emulsion residues are recycled, and the production cost of the pulverized coal is reduced.

Description

technical field [0001] The invention relates to the technical field of cold-rolling waste emulsion slag treatment, in particular to a preparation method of composite coal powder added with cold-rolling waste emulsion slag and the composite coal powder. Background technique [0002] In the cold rolling process of the iron and steel industry, in order to reduce the friction between the strip and the roll and reduce the rolling force, the emulsion is sprayed on the cooling roll and the control plate shape. After use, the emulsion enters the pit at the bottom of the rolling process , and then pumped to the treatment room for filtration treatment, and the cold rolling waste emulsion slag formed by aging under high temperature and high pressure is collected and transported out. The waste emulsion slag from cold rolling in the iron and steel industry belongs to the HW09 oil / water, hydrocarbon / water mixture or emulsion in the national hazardous waste list, and the waste code is 900-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/36
CPCC10L5/366
Inventor 李通张永福许怀鹏王仲明李如飞刘自明马孟臣
Owner MAANSHAN IRON & STEEL CO LTD
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