Petrol coke graphitization prepared carburant and petrol coke graphitization furnace filling technology

A technology of petroleum coke and carburizing agent, which is applied in the field of carburizing agent and petroleum coke graphitization furnace, which can solve the problems such as the gap in quality indicators, and achieve the effects of improving quality, reducing sulfur content and moisture content, and uniform temperature distribution

Inactive Publication Date: 2006-06-14
新郑市东升炭素有限公司
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AI Technical Summary

Problems solved by technology

The recarburizer can basically meet the production requirements of high-quality carbon steel, but there is still a gap between its quality index and graphite powder

Method used

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  • Petrol coke graphitization prepared carburant and petrol coke graphitization furnace filling technology
  • Petrol coke graphitization prepared carburant and petrol coke graphitization furnace filling technology

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] Put petroleum coke with a sulfur content of ≤0.6%wt, ash content of ≤0.5%wt, and a volatile content of 6-15%wt in an electric furnace according to the following furnace loading process, heat at 2500-3000°C for 35-45 hours, and then pass through 10- 14 days of natural cooling to get the finished product.

[0014] Petroleum coke with a sulfur content of 0.5%wt, ash content of 0.5%wt, and volatile matter of 12%wt is placed in an electric furnace according to the following furnace loading process, heated at 2800°C for 43 hours, and then naturally cooled for 11 days to obtain the finished product. The inspection indicators are as follows : Carbon content 98.62%wt, sulfur content 0.03%wt, ash 0.33%wt, volatile matter 0.79%wt, moisture 0.06%. Among them, the carbon content, sulfur content, ash content, volatile matter, and water content are tested according to GB / T2001-91, YB / T1430-1997, GB / T1429-85, YB / T5189-2000, YB / T1428-1997 .

[0015] Petroleum coke graphitization furna...

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Abstract

The invention relates to petroleum coke graphitization preparing carburant. It belongs to graphite manufacturing method technique field. The carburant carbon content is not less than 98.5%wt; sulfur content is not more than 0.04%wt; ash is not more than 0.4%wt; water is not more than 0.5%. The petroleum coke graphitization shove technique includes laying the bottom of furnace; setting furnace wall plate and fixing furnace core; furnace burdening and heat insulating material; covering the heat insulating material on the furnace core in box furnace body. The invention is set woodiness or graphite isolation layer between the furnace wall plate and petroleum coke, set graphite layer between furnace end carbon block and petroleum coke, and set diversion lead wire at each of the petroleum coke upper, middle, lower layers to make the graphitization more even, and thorough. The carburant performance index is better, and close to graphite smashing.

Description

technical field [0001] The invention belongs to the technical field of graphite production methods, in particular to a recarburizer prepared by graphitization of petroleum coke and a furnace loading process for graphitization of petroleum coke. Background technique [0002] Carburizer is the main raw material for the production of carbon steel, and high-quality carburizer is the necessary raw material for the production of high-quality carbon steel. At present, the recarburizers used by high-quality carbon steel manufacturers in the world are formed by processing the debris generated during the graphite electrode processing process-graphite powder into a certain particle size. The source of this raw material is poor and expensive, which is far from meeting the needs of high-quality carbon steel manufacturers. High-quality recarburizers have become bottleneck factors that limit the output and quality of high-quality carbon steel manufacturers. In order to seek a substitute f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00C01B31/04C22C33/04
Inventor 赵聚法
Owner 新郑市东升炭素有限公司
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