A kind of semi-coke flotation separation processing method for quality improvement

A semi-coke and sorting technology, applied in flotation, solid separation, etc., can solve the problems of poor environmental friendliness and low efficiency of direct utilization of semi-coke, and achieve the effects of strong operability, improved flotation effect, and reduced ash content

Inactive Publication Date: 2016-03-23
XIAN UNIV OF SCI & TECH
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Problems solved by technology

[0005] Aiming at the defects of low direct utilization efficiency and poor environmental friendliness of the existing semi-coke, the present invention provides a method for improving the quality of semi-coke by flotation sorting and processing on the basis of fully studying the properties of semi-coke

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  • A kind of semi-coke flotation separation processing method for quality improvement

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Embodiment Construction

[0010] 1. Main raw materials and reagents: blue charcoal, triton X-100, No. 0 diesel oil, 2-octanol.

[0011] 2. Preparation of blanched charcoal: first sieve the semi-coke, the semi-coke of -0.5mm is used as the flotation feed material, the +0.5mm semi-coke is put into the pulverizer and pulverized, and then the ball mill is re-grinded, and the obtained product continues to be sieved After sieving, the +0.5mm semi-coke enters the ball mill for grinding again, and repeats the above process until all the semi-coke passes through the 0.5mm sieve.

[0012] 3. Drug type and dosage: In the semi-coke flotation experiment of the present invention, the four factors of pulp concentration, Triton X-100, diesel oil, and 2-octanol are selected to carry out an orthogonal experiment of four factors and five levels, and the combustible body recovery rate The size is used as the basis for judging the flotation effect. The five levels are as follows: Use -0.5mm semi-coke and distilled water s...

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Abstract

The invention relates to a semi-coke floating separation and processing upgrading method. The method includes: crushing semi-coke to allow the granularity of the same to be lower than 5mm, and performing size mixing, chemical feeding and a floating experiment in a 1.5L single-trough floating machine. The floating experiment specifically includes: size mixing, adding certain amount of surface modifier to modify the surface of semi-coke powder, stirring for a period of time to allow sufficient reaction of the surface modifier and the semi-coke particles, adding collecting agent, stirring for a period of time to allow the semi-coke particles to be collected by the collecting agent, adding foaming agent, and inflating for floating separation after the chemical reacts with the semi-coke particles for a period of time. The method has the advantages that the surface modifier triton X-100 is added to modify the surface properties and the semi-coke particles during floating separation, the floating separation effect is improved, and semi-coke products with high yield and low ash content can be obtained. In addition, the whole operation process is simple, high in operability, and easily applicable to actual production.

Description

technical field [0001] The invention relates to a mineral separation method in the mineral processing industry in the mineral processing technology field, in particular to a blue carbon floatation separation processing method for quality improvement. Background technique [0002] Semi-coke, also known as semi-coke. It is a solid product obtained by pyrolysis of lignite or low-modified bituminous coal at low temperature (500°C-700°C), and also produces low-temperature coal tar and raw coal gas. At present, coal tar hydrorefined fuel oil has strong profitability, broad market prospects and great room for development. Raw gas purification power generation has also begun to be applied industrially. Semi-coke blocks are mainly used in the production of calcium carbide and ferroalloys, and semi-coke powder (with a particle size less than 6mm) is mainly used for combustion power generation and the production of civil fuels. [0003] my country's semi-coke production is distribut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03B1/00
Inventor 赵世永吕淑湛吴沛沛刘美美李博
Owner XIAN UNIV OF SCI & TECH
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