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Stamp-charging coking coal blending method by adding Huangling 1/2 middle sticky coal

A coking coal and tamping coke oven technology, which is applied in coking ovens, solid fuels, special forms of dry distillation, etc., can solve the problems of failing to meet the national standard requirements of metallurgical coke, high calcium content and catalytic index, and inability to guarantee the proportioning, etc. Achieve the effects of reducing coal blending costs, good coke quality, and saving high-quality coking coal resources

Active Publication Date: 2020-06-16
RUZHOU TIANRUI COKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sticky coal in Huangling 1 / 2 has the disadvantages of particularly high phosphorus content, high calcium content and high catalytic index
If Huangling 1 / 2 medium caking coal is simply replaced with other coal types in coking coal blending, a reasonable blending ratio cannot be guaranteed, which will lead to a decline in coke quality and fail to meet the national standard requirements for metallurgical coke

Method used

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  • Stamp-charging coking coal blending method by adding Huangling 1/2 middle sticky coal
  • Stamp-charging coking coal blending method by adding Huangling 1/2 middle sticky coal
  • Stamp-charging coking coal blending method by adding Huangling 1/2 middle sticky coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method of blending tamped coking coal into Huangling 1 / 2 medium caking coal, in which Huangling 1 / 2 medium caking coal is blended in the conventional 5.5m ramming coke oven coking coal blending scheme.

[0032] (1) The components and weight percentages of coking coal are: 1 / 3 coking coal 15%, main coking coal with caking index G≥83% 37%, medium sulfur main coke with caking index G≥85% 10%, caking index 50%≤G≤55% lean coal 10%, fat coal 17%, Huangling 1 / 2 medium caking coal 11%.

[0033] (2) Coal blending index of 5.5m tamp coke oven coking coal blended into Huangling 1 / 2 medium caking coal: ash content Ad is 10.36%, volatile content Vdaf is 26.93%, Std value is 0.87%, caking index G value is 78.8%, and the Y value is 15.5mm.

[0034] (3) As shown in Table 2, the coal quality of caking coal in Huangling 1 / 2 is as follows: the ash content Ad is 7.2%, the volatile matter Vdaf is 34.2%; Thickness Y value is 7.5mm, Std is 0.36%. The catalytic index MCI is 7.04%.

[003...

Embodiment 2

[0046] A method of blending tamped coking coal into Huangling 1 / 2 medium caking coal, in which Huangling 1 / 2 medium caking coal is blended in the conventional 5.5m ramming coke oven coking coal blending scheme.

[0047] (1) Coking coal components and weight percentages are: 1 / 3 coking coal 10%, main coking coal with caking index G≥83% 12%, lean coking coal with caking index 65%≤G≤70% 17%, caking Medium sulfur main coke with index G≥85% 12%, lean coal with caking index 50%≤G≤55%: 16%, fat coal 15%, Huangling 1 / 2 medium caking coal 18%.

[0048] (2) Coal blending index of 5.5m tamp coke oven coking coal blended into Huangling 1 / 2 medium caking coal: ash content Ad is 10.17%, volatile content Vdaf is 26.7%, Std value is 0.86%, caking index G value is 77.4%, and the Y value is 14.2mm.

[0049] (3) As shown in Table 4, the coal quality of caking coal in Huangling 1 / 2 is as follows: the ash content Ad is 7.6%, the volatile matter Vdaf is 34.6%; Thickness Y value is 8.6mm, Std is 0...

Embodiment 3

[0060] A method of blending tamped coking coal into Huangling 1 / 2 medium caking coal, in which Huangling 1 / 2 medium caking coal is blended in the conventional 5.5m ramming coke oven coking coal blending scheme.

[0061] (1) Coking coal components and weight percentages are: 1 / 3 coking coal 10%, main coking coal with caking index G≥83% 30%, lean coal with caking index 50%≤G≤55% 9%, caking The index G is 15%, lean coal is 8%, fat coal is 18%, and Huangling 1 / 2 medium caking coal is 25%.

[0062] (2) Coal blending index of 5.5m tamp coke oven coking coal blended into Huangling 1 / 2 medium caking coal: ash content Ad is 10.13%, volatile content Vdaf is 29.32%, Std value is 0.85%, caking index G value is 74.7%, and the Y value is 14.59mm.

[0063] (3) As shown in Table 6, the coal quality of caking coal in Huangling 1 / 2 is as follows: the ash content Ad is 7.1%, the volatile content Vdaf is 33.6%; The thickness Y value is 9.8mm, and the Std value is 0.38%. The catalytic index MCI...

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Abstract

The invention discloses a stamp-charging coking coal blending method by adding Huangling 1 / 2 middle sticky coal. The Huangling 1 / 2 middle sticky coal is added into a conventional coking coal blendingscheme of a 5.5 m stamp-charging coke oven. The coking coal comprises, by weight, 10-20% of 1 / 3 coking coal, 12%-40% of prime coking coal with a caking index G greater than or equal to 83%, 0%-20% oflean coking coal with a caking index G of not less than 65% and not more than 70%, 0%-15% of medium-sulfur main coke with the caking index G larger than or equal to 85%, 8%-16% of lean coal with the caking index G larger than or equal to 50% and smaller than or equal to 55%, 0%-10% of meager lean coal with the caking index G larger than or equal to 15%, 15%-20% of fat coal and 10%-25% of Huangling1 / 2 middle sticky coal. According to the invention, the proportion is reasonable, the Huangling 1 / 2 middle sticky coal is fully utilized, and the coal blending cost is reduced while the quality of coke is ensured; according to the method, the Huangling 1 / 2 middle sticky coal is used, so that high-quality coal resources are saved, and meanwhile, the production cost of enterprises can be reduced.

Description

technical field [0001] The invention relates to the technical field of metallurgical coke production, in particular to a coal blending method for ramming coking coal blended into caking coal in Huangling 1 / 2. Background technique [0002] With the development of my country's iron and steel industry, the quality requirements for metallurgical coke are getting higher and higher, and the price is lower. High-quality coking coal resources are less and less, and the price is higher. Independent coking enterprises survive in the cracks. Therefore, coking enterprises In non-coking coal resources, new coal resources are constantly sought for coal blending and coking in order to reduce production costs. [0003] According to the classification of coal types in China, bituminous coal is divided into different coal grades from low to high according to different degrees of metamorphism. % to 37% and four stages of volatile content greater than 37%, divided into low, medium, medium high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10B53/00
CPCC10B53/00C10L5/04
Inventor 谢中正杨光喜杨占强张志国谢亚凯李小茹刘天彪
Owner RUZHOU TIANRUI COKING CO LTD
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