A kind of preparation method of coke

A coke and purpose technology, which is applied in the field of formula of vertical coke oven making coke, can solve the problems of poor thermal stability, poor hot and cold strength of marking lines, etc., and achieve the effects of low porosity, improved strength and low price

Active Publication Date: 2016-09-14
SHANDONG JUMING ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of the products produced by the original process is that the marking line is poor in cold and hot strength, especially the thermal stability in practical use.

Method used

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  • A kind of preparation method of coke
  • A kind of preparation method of coke
  • A kind of preparation method of coke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] 1) Raw material crushing

[0082] Main coking coal, anthracite, coke powder, pitch and petroleum coke are separately pulverized and sieved separately to produce main coking coal powder with a particle size of 40 mesh, anthracite coal powder with a particle size of 60 mesh, fine coke powder with a particle size of 100 mesh, and fine coke powder with a particle size of 30 mesh Asphalt powder and petroleum coke powder with a particle size of 60 mesh, and the pulverized raw material powders are stored in corresponding raw material bins for future use.

[0083] 2) Weighing and mixing of raw materials

[0084] 2A) Weigh the raw materials according to the following weight ratio (×10kg)

[0085] Main coking coal powder 14

[0086] Anthracite powder 65

[0087] fine coke powder 6

[0088] asphalt powder 9

[0089] Petroleum coke powder 6

[0090] 2B) Put main coke coal powder, anthracite coal powder, petroleum coke powder, fine coke powder, and asphalt powder in a double-s...

Embodiment 2

[0112] 1) Crushing of raw materials

[0113] Main coking coal, anthracite, coke powder, pitch and petroleum coke are separately pulverized and sieved separately to produce main coking coal powder with a particle size of 30 mesh, anthracite coal powder with a particle size of 50 mesh, fine coke powder with a particle size of 80 mesh, and fine coke powder with a particle size of 30 mesh Asphalt powder and petroleum coke powder with a particle size of 50 mesh, and the pulverized raw material powders are stored in corresponding raw material bins for future use.

[0114] 2) Weighing and mixing of raw materials

[0115] 2A) Weigh the raw materials according to the following weight ratio (×10kg)

[0116] Main coking coal powder 10

[0117] Anthracite powder 70

[0118] fine coke powder 3

[0119] asphalt powder 12

[0120] Petroleum coke powder 9

[0121] 2B) Put main coke coal powder, anthracite coal powder, petroleum coke powder, fine coke powder, and asphalt powder in a doub...

Embodiment 3

[0136] 1) Crushing of raw materials

[0137] Main coking coal, anthracite, coke powder, pitch and petroleum coke are separately crushed and sieved separately to produce main coking coal powder with a particle size of 50 mesh, anthracite coal powder with a particle size of 70 mesh, fine coke powder with a particle size of 150 mesh, and fine coke powder with a particle size of 40 mesh Asphalt powder and petroleum coke powder with a particle size of 70 mesh, and the pulverized raw material powders are stored in corresponding raw material bins for future use.

[0138] 2) Weighing and mixing of raw materials

[0139] 2A) Weigh the raw materials according to the following weight ratio (×10kg)

[0140] Main coking coal powder 18

[0141] Anthracite powder 60

[0142] fine coke powder 9

[0143] asphalt powder 6

[0144] Petroleum coke powder 3

[0145] 2B) Put main coke coal powder, anthracite coal powder, petroleum coke powder, fine coke powder, and asphalt powder in a double-...

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Abstract

A method for preparing coke. The invention provides a method for preparing molded coke in a vertical coke oven. The method of the invention includes dry distillation of main coking coal, anthracite, coke powder, pitch and petroleum coke as raw materials. In the invention, the blended coal is stirred at high temperature and high pressure according to a certain proportion, shaped, charged in a furnace, and carbonized to obtain molded coke. This formula effectively solves the impact of colloidal body changes during high temperature and rapid heating. The coke quality reaches the national standard first-level rate of more than 95%. It has uniform product specifications, large lumps, high strength, low porosity and reactivity, and ash content. The characteristics of low sulfur content.

Description

technical field [0001] The invention relates to a formula for making molded coke, in particular to a formula for making molded coke in a vertical coke oven and a coking method for the vertical coke oven. Background technique [0002] In recent years, due to the continuous increase in global steel production, the demand for coke has further increased. With the development of large-scale iron and steel blast furnaces and high-pressure injection technology, the requirements for the quality and stability of coke in large-scale blast furnaces are getting higher and higher. Moreover, due to the increasing scarcity of coking coal resources, the price of incoming coal has remained high for a long time, coupled with the increasingly low price of coke, coking enterprises are required to reduce the cost of incoming coal and improve the quality of coke products. For this reason, the coking industry requires optimization of the furnace coal scheme, reducing the proportion of coking coal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/04C10B57/04
Inventor 柴玉军王青木田永杰
Owner SHANDONG JUMING ENERGY
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