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Coal water slurry additive

A technology of additives and coal-water slurry, which is applied in fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of large heat loss, large energy loss, and poor flow dispersion.

Inactive Publication Date: 2016-11-16
艾永生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problems of poor flow dispersibility, high water content of coal water slurry, large loss of energy consumption and large loss of heat energy in existing coal water slurry, and provides a kind of additive for coal water slurry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A coal water slurry additive, which is composed of the following components in parts by weight: naphthalene-based water reducer (sodium naphthalenesulfonate formaldehyde condensate) 35, sodium silicate 5, sodium hydroxide 1, sodium gluconate 1, citric acid Sodium 1, Sodium Lignosulfonate 1 and Water 5.

[0011] The preparation method is to stir with an impeller stirrer at room temperature and pressure, first add naphthalene-based water reducer and sodium silicate, stir and mix evenly, then add sodium gluconate, stir and mix evenly, add sodium citrate, and then After adding sodium hydroxide and stirring to mix uniformly, the pH value of the mixed components is greater than or equal to 12, and finally adding water and sodium lignosulfonate, stirring and mixing uniformly.

Embodiment 2

[0013] A coal water slurry additive, consisting of the following components in parts by weight: naphthalene-based water reducer (sodium naphthalenesulfonate formaldehyde condensate) 45, sodium silicate 12, sodium hydroxide 2, sodium gluconate 3, citric acid Sodium 1.5, Sodium Lignosulfonate 1.5, Water 10 and Urea 15.

[0014] The preparation method is to stir with an impeller stirrer at room temperature and pressure, first add naphthalene-based water reducer and sodium silicate, stir and mix evenly, then add sodium gluconate, stir and mix evenly, add sodium citrate, and then Adding sodium hydroxide, stirring and mixing uniformly to make the pH value of the mixed components greater than or equal to 12, and finally adding water, sodium lignosulfonate and urea, stirring and mixing uniformly is prepared.

Embodiment 3

[0016] A coal water slurry additive, consisting of the following components in parts by weight: naphthalene-based water reducer (sodium naphthalenesulfonate formaldehyde condensate) 50, sodium silicate 20, sodium hydroxide 4, sodium gluconate 4, citric acid Sodium 2, Sodium Lignosulfonate 2, Water 16 and Urea 20.

[0017] The preparation method is to stir with an impeller stirrer at room temperature and pressure, first add naphthalene-based water reducer and sodium silicate, stir and mix evenly, then add sodium gluconate, stir and mix evenly, add sodium citrate, and then Adding sodium hydroxide, stirring and mixing uniformly to make the pH value of the mixed components greater than or equal to 12, and finally adding water, sodium lignosulfonate and urea, stirring and mixing uniformly is prepared.

[0018] The using method of the present invention:

[0019] 1. Add a certain amount of coal powder and water to the ball mill;

[0020] 2. Ball milling for 4-6 hours, you can adjus...

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Abstract

The invention belongs to the technical field of a concrete additive, in particular to a coal water slurry additive. The problems that the existing coal water slurry has poor flow dispersibility, high moisture content of coal water slurry, large loss of energy consumption and large loss of heat energy are mainly solved. The water coal slurry additive comprises the following components in parts by weight: 35 to 50 parts of naphthalene water reducing agent, 5 to 20 parts of sodium silicate, 1 to 4 parts of sodium hydroxide, 1 to 4 parts of sodium gluconate, 1 to 2 parts of sodium citrate, 1 to 2 parts of sodium lignosulfonate and 5 to 16 parts of water. The additive provided by the invention has the advantages of reducing the moisture content of the coal water slurry, improving the flow dispersibility and suspension property, speeding up the precipitation speed, reducing the used amount, and reducing the nitrogen oxide content after adding urea.

Description

technical field [0001] The invention belongs to the technical field of concrete additives, in particular to a coal water slurry additive. Background technique [0002] The existing coal-water slurry adopts pure lignin as the main component. When the coal-water slurry is produced, the flow dispersion is poor, and the water content of the produced coal-water slurry is high, resulting in a large loss of energy consumption and heat energy. Contents of the invention [0003] The invention mainly aims at the problems of poor flow dispersibility, high water content of coal water slurry, large energy loss and large heat energy loss in the existing coal water slurry, and provides a coal water slurry additive. [0004] The technical scheme that the present invention takes for solving the above problems is: [0005] A coal water slurry additive, which is composed of the following components in parts by weight: 35-50 parts of naphthalene-based water reducer, 5-20 parts of sodium sili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/185C10L1/12C10L1/188C10L1/24C10L1/224
CPCC10L1/10C10L1/1233C10L1/1291C10L1/185C10L1/188C10L1/2493C10L2300/20
Inventor 艾永生
Owner 艾永生
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