Preparation method of high-strength waterproof composite coal briquette adhesive

A compound type and adhesive technology, which is applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems that it is difficult to meet the transportation strength and waterproof requirements of coal briquettes, reduce lime activity, etc., and achieve good impact resistance and hydrophilicity Strong, high thermal strength effect

Inactive Publication Date: 2016-09-21
邢台博太科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, my country has announced CN86101384, CN86108971, CN1036032, CN1036982, CN1050735 and other briquette binder patents. Either in the calorific value and ash content of briquettes, or in the presence of more harmful substances that reduce the activity of lime, or in the ash melting point and coking performance of briquettes, it is difficult to meet the needs of existing briquette transportation. Strength and waterproofing requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 5.52kg of magnesium oxide, 1.49kg of high-energy activator, 0.168kg of surfactant, and 12.32kg of bituminous coal in weight proportions, respectively pulverize and sieve, and weigh the ingredients according to the weight percentage of the components, and weigh the biomass fibers according to the proportions, and take water Put 27.3kg in a container, add the biomass fiber into the water, stir it with a stirrer after it fully absorbs water, so that the biomass fiber is well dispersed in the water; then put the weighed components into powder Add, and stir while adding, until it is evenly mixed.

[0029] Crush the anthracite pulverized coal to less than 3.0mm, mix the prepared binder with the anthracite coal powder at a weight ratio of 21:79, and mix 79kg of anthracite powder, fully stir, grind, and stand for 8 hours before forming On the machine, use 20MPa pressure to press into a briquette with a diameter of 40mm and a weight of 40g, and then dry it at a temperature ...

Embodiment 2

[0031] Get 5.04kg of magnesium oxide 24%, 1.05kg of activator, 2.52kg of biomass fiber, 0.105kg of surfactant, 12.285kg of bituminous coal, 23.1kg of water, and the manufacturing steps are as in Example 1.

[0032] Crush the anthracite pulverized coal to less than 3.0mm, mix the prepared binder with the anthracite coal powder at a weight ratio of 21:79, and mix 79kg of anthracite powder, fully stir, grind, and stand for 8 hours before forming On the machine, use 20MPa pressure to press into a briquette with a diameter of 40mm and a weight of 40g, and then dry it at a temperature of about 100°C for 3 hours to obtain the finished briquette. After testing, the cold compressive strength of the shaped coal is higher than 4.2MPa, and the hot compressive strength is above 1.2MPa. The shaped coal falls freely from a height of 2m three times continuously onto a thick steel plate without breaking. The stability index exceeds 81%, and the wear resistance index reaches more than 96%. The ...

Embodiment 3

[0034] Get 7.14kg of magnesium oxide, 1.68kg of activator, 1.26kg of biomass fiber, 0.21kg of surfactant, 10.71kg of bituminous coal, and 25.2kg of water. The manufacturing steps are as in Example 1.

[0035] Crush the anthracite pulverized coal to less than 3.0mm, mix the prepared binder with the anthracite coal powder at a weight ratio of 21:79, and mix 79kg of anthracite powder, fully stir, grind, and stand for 8 hours before forming On the machine, use 20MPa pressure to press into a briquette with a diameter of 40mm and a weight of 40g, and then dry it at a temperature of about 100°C for 3 hours to obtain the finished briquette. After testing, the cold compressive strength of the briquette is higher than 4.13MPa, and the hot compressive strength is over 1.14MPa. The briquette is free-falled from a height of 2m for 3 consecutive times onto a thick steel plate without breaking. The stability index exceeds 88%, and the wear resistance index reaches more than 92%. The fixed ca...

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PUM

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Abstract

The invention discloses a preparation method of a high-strength waterproof composite coal briquette adhesive, relating to the technical field of coal briquette manufacturing. The preparation method comprises the following steps: 1) respectively pulverizing and screening an inorganic solidification agent, a high-energy activator, a surfactant and a heat stabilizer; 2) uniformly mixing the screened materials in the step 1) to obtain mixed powder; 3) taking a container, adding water, adding biomass fibers into the water, and after the biomass fibers sufficiently absorb water, stirring with a stirrer to sufficiently disperse the biomass fibers in the water; and 4) adding the mixed powder obtained in the step 2) into the container in the step 3) while stirring until the mixed powder is uniformly mixed, thereby obtaining the high-strength waterproof composite coal briquette adhesive. The preparation method disclosed by the invention has the advantages of simple technique and accessible raw materials. The prepared adhesive can effectively enhance the cold-state strength of the coal briquette, increase the hot-state properties and heating value of the coal briquette and lower the adhesive production cost.

Description

technical field [0001] The invention relates to the technical field of briquette production, in particular to a preparation method of a high-strength waterproof composite briquette adhesive. Background technique [0002] The briquette binder is formed by complex chemical reactions between inorganic substances and various organic chemical raw materials. Adding pulverized coal quickly forms a needle network structure, so that the briquette has high cold and thermal mechanical strength and thermal stability; High moisture-proof, waterproof performance and water immersion strength; high combustion value when put into the furnace, high heat intensity after combustion, low drop breakage rate, no ash, no pollution, and simple operation. [0003] At present, my country has announced CN86101384, CN86108971, CN1036032, CN1036982, CN1050735 and other briquette binder patents. Either in the calorific value and ash content of briquettes, or in the presence of more harmful substances that...

Claims

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Application Information

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IPC IPC(8): C10L5/10
CPCC10L5/105
Inventor 侯卫东
Owner 邢台博太科技有限公司
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