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Coke, coking method and application thereof

A technology for coke and heavy parts, applied in the field of coking, can solve the problems of lack of constant pressure coking, non-uniformity, insufficient coke strength, etc., and achieve the effect of pore wall thickness, good quality and high coke strength

Inactive Publication Date: 2021-06-01
山西沁新能源集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the insufficient or uneven strength of coke obtained by coking in the prior art and the lack of constant pressure coking technology in large-scale production coke ovens, and to provide coke, coking method and its application

Method used

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  • Coke, coking method and application thereof
  • Coke, coking method and application thereof
  • Coke, coking method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] (1) Pulverizing coal raw materials, blending coal, tamping, stacking and loading coal, the height of the obtained coal block is 45cm, and the width is 35cm, and the coal block is loaded into the coking oven;

[0039] (2) Lay a layer of circular solid iron balls of the same size on the upper end face of the coal block, and the diameter of the iron balls is 10cm;

[0040] (3) Carry out heating coking to coal block, coking is carried out in 4 stages, and the conditions of each stage include:

[0041] The first stage is 50 hours, the temperature of the vault is 700°C, and the temperature of the quadruple flue is 800°C;

[0042] The second stage is 50 hours, the temperature of the vault is 850°C, and the temperature of the quadruple flue is 900°C;

[0043] The third stage is 100 hours, the temperature of the vault is 895°C, and the temperature of the quadruple flue is 900°C;

[0044] The fourth stage is 160 hours, the temperature of the vault is 895°C, and the temperature ...

Embodiment 2

[0047] (1) Pulverizing coal raw materials, blending coal, tamping, stacking and loading coal, the height of the obtained coal block is 45cm, and the width is 35cm, and the coal block is loaded into the coking oven;

[0048] (2) Lay a layer of circular solid iron balls of the same size on the upper end face of the coal block, and the diameter of the iron balls is 15cm;

[0049] (3) Carry out heating coking to coal block, coking is carried out in 4 stages, and the conditions of each stage include:

[0050] The first stage is 50 hours, the temperature of the vault is 750°C, and the temperature of the quadruple flue is 850°C;

[0051] The second stage is 100 hours, the temperature of the vault is 900°C, and the temperature of the quadruple flue is 950°C;

[0052] The third stage is 160 hours, the temperature of the vault is 905°C, and the temperature of the quadruple flue is 950°C;

[0053] The fourth stage is 195 hours, the temperature of the vault is 905°C, and the temperature...

Embodiment 3

[0056] (1) Pulverizing coal raw materials, blending coal, tamping, stacking and loading coal, the height of the obtained coal block is 45cm, and the width is 35cm, and the coal block is loaded into the coking oven;

[0057] (2) Lay a layer of circular solid iron balls of the same size on the upper end face of the coal block, and the diameter of the iron balls is 12.5cm;

[0058](3) Carry out heating coking to coal block, coking is carried out in 4 stages, and the conditions of each stage include:

[0059] The first stage is 50 hours, the temperature of the vault is 725°C, and the temperature of the quadruple flue is 825°C;

[0060] The second stage is 75 hours, the temperature of the vault is 875°C, and the temperature of the quadruple flue is 925°C;

[0061] The third stage is 130 hours, the temperature of the vault is 900°C, and the temperature of the quadruple flue is 925°C;

[0062] The fourth stage is 180 hours, the temperature of the vault is 900°C, and the temperature...

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Abstract

The invention relates to the field of coking, and discloses coke, a coking method and an application thereof, and the method comprises the following steps: coking a coal briquette, laying one or more heavy pieces on the upper end surface of the coal briquette, and enabling the heavy pieces to always apply downward pressure to the coal briquette in the coking process; wherein the heavy part can not expand or melt at least at a temperature of 1200 DEG C. In the method, the heavy pieces can continuously apply constant pressure to the coal briquettes in the large coke oven so as to reduce the influence of expansion force in the coking process, and the obtained finished coke is small in pore diameter, thick in pore wall, high in coke strength and good in furnace end coke quality.

Description

technical field [0001] The invention relates to the field of coking, in particular to coke, a coking method and applications thereof. Background technique [0002] The general tamping coking technology, after the tamping briquettes are put into the coking oven, due to the progress of the coking process, the briquettes will continue to generate expansion pressure, and coking cannot be done under constant pressure, resulting in the inevitable existence of coke after coking A large number of large pores, so that the strength of the coke is insufficient or uneven. [0003] CN105861002A discloses a small constant-pressure coking oven and a constant-pressure coking method. The coking oven adopts a constant-pressure system composed of a hydraulic pump, a buffer cylinder and a moving platen to apply a constant pressure to the tamped coal cake. However, the device used in this method has a complex structure and is only suitable for small coke ovens. It is mainly used to predict the ...

Claims

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Application Information

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IPC IPC(8): C10B37/04C10B53/04
CPCC10B37/04C10B53/04
Inventor 孙占龙赵宝龙
Owner 山西沁新能源集团股份有限公司
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