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Preparation method of moisture-proof light-cured molded coal

A light-curing and moisture-resistant technology, applied in the direction of solid fuel, petroleum industry, fuel, etc., can solve the problems of easy pollution of the environment, low cold strength, high preparation cost, etc., and achieve high economic value, convenient operation, and short preparation time Effect

Pending Publication Date: 2018-11-06
岳阳振兴中顺新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problems of high preparation cost of medium-sized coal in the prior art, easy pollution of the environment, low strength in cold state, easy collapse in humid environment, low consumption of high-sulfur coal, and inability to meet the needs of transportation and other processes, and provides a moisture-resistant photocuring A method for preparing briquettes, the briquettes prepared by this method have high cold strength, strong moisture resistance, and can be light-cured at low temperature

Method used

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  • Preparation method of moisture-proof light-cured molded coal

Examples

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Effect test

preparation example Construction

[0030] Implement a kind of preparation method of moisture-resistant light-cured briquette, and this method is carried out according to the following steps:

[0031] In the first step, the photoinitiator 2-ethylanthraquinone and the solid sulfur-fixing agent calcium hydroxide were weighed respectively, and the mixture was fully stirred until uniformly mixed to obtain a mixture A;

[0032] The second step is to weigh raw coal, crush and sieve to obtain coal powder;

[0033] In the third step, the mixture A obtained in the first step and the pulverized coal obtained in the second step are fully stirred and mixed to obtain a mixture B;

[0034] In the fourth step, polyacrylate and solvent water are respectively added to the mixture B obtained in the third step, and the mixture is mixed quickly to obtain a mixture C;

[0035] In the fifth step, the mixture C obtained in the fourth step is pressed and molded by a pressure molding machine. After the compression molding, it is irradi...

Embodiment 1

[0040] Implementation of a method for preparing moisture-resistant light-cured briquettes

[0041] In the first step, 100 g of photoinitiator 2-ethylanthraquinone and 10 g of sulfur-fixing agent calcium hydroxide solid were weighed respectively, and were fully stirred until uniformly mixed to obtain mixture A;

[0042] In the second step, 1000 g of raw coal is weighed, crushed and sieved to obtain coal powder with a particle size range of 0.1-0.5 mm;

[0043] In the third step, the mixture A obtained in the first step and the pulverized coal obtained in the second step are fully stirred and mixed to obtain a mixture B;

[0044] In the fourth step, add 10 g of polyacrylate and 50 g of water to the mixture B obtained in the third step, stir and mix quickly until uniform, and obtain mixture C;

[0045] In the fifth step, the mixture C obtained in the fourth step is pressed and formed by a pressure forming machine, and after the compression is formed, it is irradiated with 250-42...

Embodiment 2

[0048] Implementation of a method for preparing moisture-resistant light-cured briquettes

[0049] In the first step, 50 g of photoinitiator 2-ethylanthraquinone and 50 g of sulfur-fixing agent calcium hydroxide solid were weighed respectively, and fully stirred until uniformly mixed to obtain mixture A;

[0050] In the second step, 1000 g of raw coal is weighed, crushed and sieved to obtain coal powder with a particle size range of 0-1.0 mm;

[0051] In the third step, the mixture A obtained in the first step and the pulverized coal obtained in the second step are fully stirred and mixed to obtain a mixture B;

[0052] In the fourth step, add 200 g of polyacrylate and 100 g of water to the mixture B obtained in the third step, stir and mix quickly until uniform, and obtain mixture C;

[0053] In the fifth step, the mixture C obtained in the fourth step is pressed and formed by a pressure molding machine, and after the compression is formed, it is irradiated with 250-420nm ul...

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Abstract

The invention discloses a preparation method of moisture-proof light-cured molded coal. According to the preparation method, 2-Ethylanthraquinone, calcium hydrate, polyacrylate, and solvent water aretaken as raw materials; the raw materials are mixed with coal powder at a certain mass ratio, mechanical compacting molding is adopted, and an obtained product is subjected to ultraviolet irradiationso as to obtain light cured molded coal. The bonding index of the light cured molded coal is larger than 70, the cold strength is larger than 2MPa, the hot strength is as high as 5MPa, the thermal stability is excellent, the cold strength and the hot strength are high, and solidification is achieved quickly under ultraviolet ray.

Description

technical field [0001] The invention relates to a method for preparing solidified briquettes, in particular to a method for preparing moisture-resistant light-cured briquettes. Background technique [0002] Briquette is a coal product with a certain shape and strength formed by processing one or several kinds of non-caking or weakly cohesive coal powder and a certain proportion of binder under a certain pressure and temperature. Briquette can improve combustion efficiency , reduce environmental pollution, expand the application range of high-volatility weak caking coal such as lean coal, gas coal, and long-flame coal. The overall structure of briquettes collapses due to the humid environment, so it is one of the effective ways and methods to rationalize and expand the utilization of coal resources. [0003] The existing public literature reports show that the briquettes currently prepared are mainly prepared by binders, and there are various types of binders. According to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10L5/06
CPCC10L5/04C10L5/06C10L2290/24C10L2290/30C10L2290/32
Inventor 陈攀
Owner 岳阳振兴中顺新材料科技股份有限公司
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