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A kind of coal water slurry additive and its preparation method, application

A coal-water slurry and additive technology, which is applied in liquid carbon-containing fuels, petroleum industry, fuels, etc., can solve the problems of easy precipitation, high viscosity of coal slurry, poor fluidity, etc., and achieves easy control of the reaction process and improved hydrophilicity. , the effect of reducing production costs

Active Publication Date: 2021-07-20
四川路加四通科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a coal-water slurry additive to solve the problems of high viscosity, poor fluidity and easy precipitation of the existing coal slurry additives during the use process

Method used

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  • A kind of coal water slurry additive and its preparation method, application
  • A kind of coal water slurry additive and its preparation method, application
  • A kind of coal water slurry additive and its preparation method, application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A coal slurry additive, with a weight gauge, including the following components:

[0032] 15 parts of polyoxyethylene esters, 5 parts of polyacrylamide, 42 parts of silicate, 83 parts of inorganic salts, 7 organic bentonite, and 2 polymeric alkylamines.

[0033] The preparation method of this example is. Include the following steps:

[0034] S1, mix the various materials in the above ratio, stir mix;

[0035] S2, the pH conditioner adjustment step S1 is mixed to 8.0.

[0036] In the present embodiment, the inorganic salt is sodium chloride which is sodium hydrogencarbonate which is sodium biased.

Embodiment 2

[0038] A coal slurry additive, with a weight gauge, including the following components:

[0039] 32 parts of polyoxyethylene esters, 2 parts of polyacrylamide, 28 parts of plateilicate, 68 parts of inorganic salts, 4 parts of organic bentonite, and 6 polymeric alcoholamines.

[0040] The preparation method of this example is. Include the following steps:

[0041] S1, mix the various materials in the above ratio, stir mix;

[0042] S2, adding the pH adjusting agent to adjust the pH of the material to 12.0 after mixing the step S1.

[0043] In the present embodiment, the inorganic salt is sodium chloride which is sodium hydrogencarbonate which is sodium biased.

Embodiment 3

[0045] A coal slurry additive, with a weight gauge, including the following components:

[0046] 20 parts of polyoxyethylene esters, 3 parts of polyacrylamide, 35 parts of silicate, 70 inorganic salts, 5 parts of organic bentonite, and 3 parts of polymeric alcoholamine.

[0047] The preparation method of this example is. Include the following steps:

[0048] S1, mix the various materials in the above ratio, stir mix;

[0049] S2, adding the pH adjusting agent to adjust the pH of the material to 10.0 after mixing step S1.

[0050] In the present embodiment, the inorganic salt is sodium chloride which is sodium hydrogencarbonate which is sodium biased.

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PUM

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Abstract

The invention discloses a coal water slurry additive and its preparation method and application. The coal water slurry additive comprises the following components in parts by weight: 15-32 parts of polyoxyethylene ester, 2-5 parts of polyacrylamide, 28-42 parts of metasilicate, 68-83 parts of inorganic salt, 4-7 parts of organic bentonite, 2-6 parts of polyalcoholamine. The additive of the present invention can improve the hydrophilicity of the surface of coal particles, adjust the charge density of the particle surface, and the electric charge establishes a three-dimensional structure in the coal slurry to prevent precipitation, which can make the coal-water slurry have a higher concentration, lower Viscosity, good fluidity, and not easy to produce precipitation when static.

Description

Technical field [0001] The present invention relates to the field of chemical additives, and more particularly to a coal slurry additive and a preparation method thereof. Background technique [0002] The surface of the pulverized coal particles is hydrophobic, and the pulverized coal that is not fully wetted will be packed to each other, which will increase the viscosity and the fluidity is deteriorated. Therefore, the concentration of the coal slurry prepared by the pulverized coal pulverized in addition to the addition of additives is not high. Therefore, it is usually used to increase the concentration of the water coal slurry during operation. [0003] Existing coal slurry additives during use, there will be high coal slurry and poor liquidity, and it is prone to precipitation. Inventive content [0004] It is an object of the present invention to provide a problem of a coal slurry additive to solve the problem of high coal slurry in the use of coal slurry additives in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/198C10L1/236C10L1/28C10L1/12C10L1/14C10L1/32
CPCC10L1/106C10L1/1225C10L1/14C10L1/1983C10L1/2364C10L1/28C10L1/324
Inventor 卫强孙耀进
Owner 四川路加四通科技发展有限公司
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