Humolite composite adhesive for producing gas making coal rods and preparation method thereof

A binder and gas-making technology, which is used in the production of rot-coal composite binders for gas-making coal and its preparation field, can solve the problem of high coal consumption per ton of ammonia, a large amount of carried-out, and cold-state compressive strength of gas-making coal rods. problems such as calibration difference, to achieve the effect of improving economic benefits, reducing coal consumption, and saving energy.

Inactive Publication Date: 2013-12-11
张时能
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of sodium humate, the coal rod produced by this single formula binder has a poor cold compressive strength of 20-30 kg, and the ther...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The ratio of raw materials by weight of putrid coal composite binder is:

[0026] 1,600 kg of rotten coal powder, 50 kg of 100-mesh bagged grain flour, 300 kg of calcium-based bentonite with a suction volume greater than 30, and 160 kg of caustic soda with a content of 98%.

[0027] Humic acid dry base content of rotten coal powder is 50%, water content is 40-45%, particle size is 60-80 mesh.

[0028] The preparation method proceeds as follows:

[0029] Inject 3000 kg of cold water into the reaction tank, start the mixer, start adding binder raw materials, and stir while adding, first add rotten coal powder, secondly add cornstarch, thirdly add calcium-based bentonite, stir for 3 minutes after adding, heat up When the temperature reaches 60°C, add caustic soda, continue to raise the temperature to 90°C, and react for 1.5 hours to form a putrid coal composite binder.

Embodiment 2

[0031] The ratio of raw materials by weight of putrid coal composite binder is:

[0032] 2,200 kilograms of rotten coal powder, 100 kilograms of 100-mesh corn flour, 400 kilograms of calcium-based bentonite with a suction volume greater than 30, and 140 kilograms of 98% caustic soda.

[0033] Humic coal powder has a dry basis content of humic acid of 40%, a moisture content of 40-45%, and a particle size of 60-80 mesh.

[0034] The preparation method proceeds as follows:

[0035] Inject 4200 kg of cold water into the reaction tank, start the mixer, start adding binder raw materials, and stir while adding, first add rotten coal powder, secondly add cornstarch, thirdly add calcium-based bentonite, stir for 4 minutes after adding, heat up When the temperature reaches 55°C, add caustic soda, continue to raise the temperature to 85°C, and react for 1 hour to form a rotten coal composite binder.

Embodiment 3

[0037] The ratio of raw materials by weight of putrid coal composite binder is:

[0038] 1,800 kg of rotten coal powder, 80 kg of 100-mesh bagged grain powder, 300 kg of calcium-based bentonite with a suction volume greater than 30, and 150 kg of caustic soda with a content of 98%.

[0039] Humic coal powder has a humic acid dry basis content of 50%, a moisture content of 40-45%, and a particle size of 60-80 mesh.

[0040] The preparation method proceeds as follows:

[0041] Inject 3700 kg of cold water into the reaction tank, start the mixer, start adding binder raw materials, and stir while adding, first add rotten coal powder, secondly add cornstarch, thirdly add calcium-based bentonite, stir for 5 minutes after adding, and heat up When the temperature reaches 65°C, add caustic soda, continue to heat up to 75°C, and react for 2 hours to form a rotten coal composite binder.

[0042] The produced composite binder is sent to the entrance of the first twin-shaft mixer in the ...

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PUM

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Abstract

The invention relates to a humolite composite adhesive for producing gas making coal rods and a preparation method thereof. The humolite composite adhesive is prepared from the following raw materials in parts by weight: 1400-1800 parts of humolite powder, 40-60 parts of maize powder, 200-400 parts of calcium bentonite and 140-160 parts of sodium hydroxide. The preparation method comprises the following steps: adding water into a reaction tank, adding the raw materials, and carrying out chemical composite reaction under heating conditions. When smokeless powder coal and the composite adhesive are used for producing the gas making coal rod, the cold state compression strength of the coal rod is 60-70 kilograms, the hot strength and heat stability of the coal rod are high, and the heat stability is 70% above; and the coal rod has high chemical activity and obvious energy-saving effect.

Description

technical field [0001] The invention relates to the technical field of anthracite pulverized coal molding, in particular to a rotten coal composite binder for producing gas-making coal scoops and a preparation method thereof. Background technique [0002] At present, my country's synthetic ammonia industry has basically completed the transformation of the raw material route of producing synthetic ammonia by substituting anthracite for coke. Most of the chemical fertilizer plants use anthracite pulverized coal as raw material, and use putrid coal and caustic soda to produce sodium humate liquid binder for gas production. Craft of coal sticks. Due to the high-pressure extrusion molding of coal rods, the amount of binder is less, so most domestic ammonia plants use this process to produce gas-forming coal. Humic acid lignite resources in my country are abundant and cheap, so the synthetic ammonia enterprises that produce coal rods almost use humic coal to produce gas-making coa...

Claims

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Application Information

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IPC IPC(8): C10L5/10C10L5/12
Inventor 张时能
Owner 张时能
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