Binding agent for coking and preparation method thereof

A binder and binder technology, which is applied in coking binders, refining rammed coke and molded coke, can solve the problems of high price, lack of popularization, inconvenient use, etc.

Inactive Publication Date: 2012-10-24
SHIJIAZHUANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People have used coal tar and asphalt as adhesives, but because of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0006] Implementation example 1: Add 30 kg of formaldehyde, 10 kg of urea, 10 kg of phenol, 15 kg of coal tar into a jacketed enamel reactor, adjust the pH to 7.5, stir, heat with steam, heat up to 85°C, heat preservation and polymerization 3 hour. Then, 15 kg of starch was diluted with 7 times the starch's water to form a paste, added to the reaction kettle, then heated to 95°C, kept for 2 hours, cooled to room temperature, and taken out of the kettle to be used as a coking adhesive. When refining tamped coke, add 8% of the binder by weight of the prepared coal, stir evenly, and tamping for coking.

Example Embodiment

[0007] Implementation example 2: Add 40 kg of formaldehyde, 15 kg of urea, 10 kg of phenol, and 20 kg of coal tar into a jacketed enamel reactor, adjust the pH to 7, stir, heat with steam, heat up to 85°C, heat preservation and polymerize 3 hour. Then, 20 kg of starch was diluted with 8 times the starch's water into a paste, added to the reaction kettle, and then heated to 95°C, kept for 2 hours, cooled to room temperature, and taken out of the kettle to be used as a binder for coking. When refining tamped coke, add 8% of the binder by weight of the prepared coal, stir evenly, and tamping for coking.

Example Embodiment

[0008] Implementation example 3: Add 50 kg of formaldehyde, 20 kg of urea, 15 kg of phenol, and 30 kg of coal tar into a jacketed enamel reactor, adjust the pH to 8, stir, heat with steam, heat up to 90°C, heat preservation and polymerize 3 hour. Then, 25 kg of starch was diluted with 8 times the starch's water into a paste, added to the reaction kettle, and then heated to 95°C, kept for 2 hours, cooled to room temperature, and taken out of the kettle to be used as a coking adhesive. When refining tamped coke, add 8% of the binder by weight of the prepared coal, stir evenly, and tamping for coking.

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PUM

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Abstract

The invention relates to a binding agent for coking and preparation method thereof. The binding agent is formed by synthesizing of formaldehyde, phenol, urea, coal tar, starch and the like, and the binding agent is a water-soluble organic resin binding agent for coking. During coking, 8% to 10% of the binding agent is added, a large amount of noncoking coal or weakly caking coal is used, qualified metallurgical coke can be refined, the coking cost can be reduced obviously, and the range of coal for coking is enlarged. The binding agent is suitable for conking tamping coke and formed coke, a glue mixing device is added, existing devices can be used, and no device is required to be added.

Description

technical field [0001] The invention relates to a binder for coking, which is suitable for refining stamped coke and shaped coke. Adding the binder to coking coal can expand the range of coking coal and reduce costs. It belongs to the field of chemical engineering and metallurgy technology. Background technique [0002] At present, blast furnace ironmaking must use metallurgical coke. Now coking coal is becoming more and more scarce. In order to expand the range of coking coal and use weakly caking coal and non-caking coal, people need to add binders. People have used coal tar and asphalt as adhesives, but because of the high price and inconvenient use, they have not been promoted. The coking industry is in urgent need of a coking binder that is easy to use, cheap and environmentally friendly. The invention produces a polymer water-soluble binder through polymerization reaction, and the binder can obviously increase coke strength, expand the range of coal used in coking,...

Claims

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Application Information

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IPC IPC(8): C10L5/10
Inventor 张星辰
Owner SHIJIAZHUANG UNIVERSITY
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