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Figured coke and its production method

A technology of coke powder and hot pressing, applied in the field of coke molding, can solve the problems of waste of resources, many harmful impurities, less coking coal reserves, etc., and achieve the effects of concentrated heat generation, uniform particle size and high thermal efficiency

Inactive Publication Date: 2006-01-11
DONGA DONGCHANG COKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, domestic coke production generally adopts coke ovens or cokes in cellars, and basically uses main coking coal plus coal blending for coking. Due to the small reserves of coking coal in my country and the high price, not only the serious waste of resources is caused, but also the production cost is high.
At the same time, the finished product contains more harmful impurities such as ash and sulfur, which is not easy to wash and sort, and the coke quality is poor
[0003] At the same time, in the coke production process, a large amount of coke dust will be produced, which cannot be effectively used, resulting in an ineffective waste of resources

Method used

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  • Figured coke and its production method
  • Figured coke and its production method
  • Figured coke and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1. Utilize coke powder and pitch to process molded coke. The technological process is as follows: the coke powder is dried by a dryer to remove moisture, and the moisture content is ≤4%; it is ground in a ball mill, and the particle size is between 0.2-1mm. The asphalt produced by tar processing enters the crusher and is crushed until the particle size is between 1-3mm; the coke powder and asphalt are mixed at a weight ratio of 20:80, enter the kneader, and be directly heated by steam. Stir while heating until the bitumen is completely melted. Enter the forming machine, and roll forming (also can be formed by friction press). Blockiness and shape are adjusted as desired. The formed material is put into the retort pit, covered with yellow sand, heated to 1100°C for retort treatment, and the finished coke is the finished product after leaving the pit.

Embodiment 2

[0019] Example 2. Formed coke is processed from anthracite and pitch. The technological process is as follows: the anthracite is dried by a dryer to remove moisture, and the moisture content is ≤4%; it is ground into a ball mill, and the particle size is between 0.2-1mm. The asphalt produced by tar processing enters the crusher and is crushed until the particle size is between 1-3mm. The anthracite and asphalt are mixed at a weight ratio of 20:80, then enter the kneader, and are directly heated by steam. Stir while heating until the bitumen is completely melted. Enter the forming machine, and roll forming (also can be formed by friction press). Blockiness and shape are adjusted as desired. The formed material is put into the retort pit, covered with yellow sand, heated to 1100°C for retort treatment, and the finished coke is the finished product after leaving the pit.

Embodiment 3

[0020] Example 3. Form coke is processed using graphite and pitch. The technological process is as follows: the graphite is dried by a dryer to remove moisture, and the moisture content is less than or equal to 4%; it is ground into a ball mill, and the particle size is between 0.2-1mm. The asphalt produced by tar processing enters the crusher and is crushed until the particle size is between 1-3mm. The graphite and asphalt are mixed at a weight ratio of 20:80, and then enter the kneader and directly heated by steam. Stir while heating until the bitumen is completely melted. Enter the forming machine, and roll forming (also can be formed by friction press). Blockiness and shape are adjusted as desired. The formed material is put into the retort pit, covered with yellow sand, heated to 1100°C for retort treatment, and the finished coke is the finished product after leaving the pit.

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Abstract

A shaped casting coke is prepared from coke dust or anthracite, graphite, inadherent coal and asphalt through proportional mixing and high-temp dry distilling. Its advantages are uniform granularity, high density and strength, and high caloricity.

Description

technical field [0001] The invention relates to the field of molded coke, in particular to the molded coke produced by processing pitch produced by tar processing and coke powder or anthracite, graphite and non-stick coal. The invention also relates to a method for the production of shaped coke. Background technique [0002] At present, domestic coke production generally adopts coke ovens or cokes in cellars, and basically uses main coking coal plus coal blending for coking. Due to the small reserves of coking coal in my country and the high price, not only the serious waste of resources is caused, but also the production cost is high. At the same time, the finished product contains more harmful impurities such as ash and sulfur, which is not easy to be washed, and the coke quality is poor. [0003] At the same time, in the coke production process, a large amount of coke powder will be produced, which cannot be effectively used, resulting in an ineffective waste of resource...

Claims

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Application Information

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IPC IPC(8): C10B53/00
Inventor 王海燕
Owner DONGA DONGCHANG COKING
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