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Composite industrial gasification formed coke binder and preparation method of formed coke

A gasification and composite technology, which is applied in the field of composite industrial gasification coke binder and its coke preparation, can solve the problems of high production cost and poor bonding performance, and achieve low production cost and excellent performance , to overcome the effect of non-adhesive

Active Publication Date: 2013-12-11
SHAANXI COAL & CHEM TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a composite industrial gasification coke binder and a method for preparing coke, so as to realize the effective utilization of powder coke resources and overcome the defects of the current powder coke molding binder, such as production cost High performance, poor bonding performance and other problems, to prepare gasification coke with excellent performance

Method used

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  • Composite industrial gasification formed coke binder and preparation method of formed coke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Put 65 parts of water in the reaction kettle, heat up, and when the temperature reaches 80°C, add 10 parts of fly ash, 6 parts of lime powder and 7 parts of sodium silicate into the reaction kettle, and stir at a speed of 85r / min , when the temperature rises to 100°C, continue to stir for 70min under this temperature condition;

[0040] (2) Add 6 parts of humic acid and 6 parts of sodium carboxymethylcellulose into the reaction kettle, and continue to stir at this speed for 90 minutes at 100°C to fully mix these ingredients;

[0041](3) After the solution in step (2) is cooled to room temperature, the composite gasification coke binder of the present invention is obtained.

[0042] (4) Break the coke powder until the particle size is below 3mm, put it and the binder in step (3) in a kneading pot, stir for 10 minutes, and mix them evenly. The dosage ratio (parts by mass) is: powder coke 87 parts, 13 parts of binder;

[0043] (5) Send the mixture to a roller press, ...

Embodiment 2

[0045] (1) Put 70 parts of water in the reaction kettle, heat up, and when the temperature reaches 65°C, add 8 parts of fly ash, 7 parts of calcium hydroxide and 9 parts of silica sol into the reaction kettle, and stir at a speed of 75r / min , when the temperature rises to 95°C, continue to stir for 60min under this temperature condition;

[0046] (2) Add 2 parts of humic acid and 4 parts of sodium carboxymethylcellulose into the reaction kettle, and continue to stir at this speed for 75 minutes at 95°C to fully mix these ingredients;

[0047] (3) After the solution in step (2) is cooled to room temperature, the composite gasification coke binder of the present invention is obtained.

[0048] (4) Break the coke powder until the particle size is below 3mm, put it and the binder in step (3) in a kneading pot, stir for 10 minutes, and mix them evenly. The dosage ratio (parts by mass) is: powder coke 84 parts, 16 parts of binder;

[0049] (5) Send the mixture to a roller press, p...

Embodiment 3

[0051] (1) Put 75 parts of water in the reaction kettle, heat up, and when the temperature reaches 50°C, add 6 parts of fly ash, 5 parts of calcium aluminate cement and 5 parts of sodium fluorosilicate into the reaction kettle, at 65r / min Stir at a constant speed, wait for the temperature to rise to 90°C, and continue to stir for 50 minutes at this temperature;

[0052] (2) Add 4 parts of humic acid and 5 parts of sodium carboxymethylcellulose into the reaction kettle, and continue to stir at this speed for 60 minutes at 90°C to fully mix these ingredients;

[0053] (3) After the solution in step (2) is cooled to room temperature, the composite gasification coke binder of the present invention is obtained.

[0054] (4) Break the coke powder until the particle size is below 3mm, put it and the binder in step (3) in a kneading pot, stir for 10 minutes, and mix them evenly. The dosage ratio (parts by mass) is: powder coke 81 parts, 19 parts of binder;

[0055] (5) Send the mixt...

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Abstract

The invention discloses a composite industrial gasification formed coke binder and a preparation method of formed coke. The preparation method comprises the steps of preparing the composite industrial gasification formed coke binder, adding water to a reaction kettle, heating, adding coal ash, a calcic inorganic substance and a silicious inorganic substance to the reaction kettle, stirring, heating, continuously stirring, adding humic acid and sodium carboxymethylcellulose to the reaction kettle, continuously stirring under the temperature condition, sufficiently and uniformly mixing, obtaining the formed coke binder till a solution is cooled to a room temperature, preparing the composite industrial gasification formed coke, crushing powdered coke, placing the powdered coke and the binder in a tempering kettle, uniformly stirring and mixing, sending a mixture to a roller press, conducting extrusion forming at a normal temperature, drying, cooling, and obtaining the formed coke. According to the binder and the preparation method, the characteristics that the coal ash is cheap and easy to obtain are utilized, so that the cost is lowered; organic and inorganic components of the binder are composited together, so that a binding property is improved; the defects that the powdered coke has no binding property, and is small in plasticity and loose in structure are overcome; and a value of the powdered coke is increased.

Description

technical field [0001] The invention relates to the technical field of powder coke molding, in particular to a composite industrial gasification coke binder and a method for preparing coke. Background technique [0002] In the production process of metallurgy, chemical industry and calcium carbide and other industries, coke is a main raw material, but its use requires a certain degree of lumpiness. Due to the relatively low yield of coking lump coal, the cost of coking is relatively high, resulting in high coke prices. At the same time, due to the low mechanical strength of the coke itself, it will be broken during the transportation and processing of the coke, resulting in a large amount of powder coke with small particle size (generally below 10 mm). Although the physical and chemical properties of powder coke are not much different from those of bulk coke, the particle size does not meet the requirements of the production processes of metallurgy, chemical and calcium car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/10
Inventor 党颂郑化安付东升王小宪杨阳张云王文婧
Owner SHAANXI COAL & CHEM TECH INST
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