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 har

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

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

[0029] The anthracite pulverized coal is crushed to below 3.0mm, the prepared binder is mixed with the anthracite pulverized coal at a weight ratio of 21:79, and the anthracite pulverized coal is mixed with 79kg. After fully stirring, grinding, and standing for 8 hours, it will be shaped The briquette with a diameter of 40mm and a weight of 40g is pressed on the machine with a pressure of...

Example Embodiment

[0030] Example 2

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

[0032] The anthracite pulverized coal is crushed to below 3.0mm, the prepared binder is mixed with the anthracite pulverized coal at a weight ratio of 21:79, and the anthracite pulverized coal is mixed with 79kg. The briquette with a diameter of 40mm and a weight of 40g is pressed on the machine with a pressure of 20MPa, and then dried at a temperature of about 100°C for 3 hours. After testing, the cold compressive strength of the briquette is higher than 4.2MPa, and the hot compressive strength is more than 1.2MPa. The briquette falls freely from a height of 2m to a thick steel plate three times without breaking. The stability index exceeds 81%, and the wear resistance index reaches more than 96%; the air-dry base fixed carbon content of briquette is 72...

Example Embodiment

[0033] Example 3

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

[0035] The anthracite pulverized coal is crushed to below 3.0mm, the prepared binder is mixed with the anthracite pulverized coal at a weight ratio of 21:79, and the anthracite pulverized coal is mixed with 79kg. The briquette with a diameter of 40mm and a weight of 40g is pressed on the machine with a pressure of 20MPa, and then dried at a temperature of about 100°C for 3 hours. After testing, the cold compressive strength of the briquette is higher than 4.13MPa, and the hot compressive strength is more than 1.14MPa. The briquette falls freely from a height of 2m to a thick steel plate three times without breaking. The stability index exceeds 88%, and the wear resistance index reaches more than 92%; the air-dry base fixed carbon content of briquettes...

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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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