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A processing method for producing high-quality recarburizer by using low-quality recarburizer raw materials

A processing method and carburizing agent technology, which is applied in the processing field of producing high-quality carburizing agents, can solve problems such as high cost, limited quality of finished products, and limited source of raw materials, so as to achieve the effect of reducing nitrogen content and getting rid of dependence

Active Publication Date: 2022-07-08
江苏嘉明碳素新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional carburant production process is just a simple production process of crushing, screening, mixing and mixing raw materials. It cannot remove impurities such as metals, stones, and silicon carbide in the raw materials. The quality of the finished product is completely limited by the quality of the raw materials. If If you want to produce high-grade carburant, you must use the corresponding grade of high-quality raw materials
If high-grade raw materials are used for the production of high-quality carburizers, on the one hand, the source of raw materials is limited, and on the other hand, the cost is high. Therefore, the market price of carburizers is relatively high.

Method used

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  • A processing method for producing high-quality recarburizer by using low-quality recarburizer raw materials
  • A processing method for producing high-quality recarburizer by using low-quality recarburizer raw materials

Examples

Experimental program
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Effect test

Embodiment 1

[0013] Embodiment 1, a kind of processing method of using low-quality carburizing agent raw materials to produce high-quality carburizing agent, the specific preparation steps are as follows: the first step: crushing and screening, the large-granularity raw material is introduced into the crushing and screening production line, and it is classified into various relatively small particles. Small particle size needs to be continuously crushed. According to the actual situation of the product, the large particle size raw materials are crushed into different particle sizes; the second step: magnetic separation and purification, the raw materials after the first step of crushing and screening are passed through the powder ore strong magnetic dry magnetic type. Selecting device to remove the magnetic metal impurities in it; Step 3: Gravity separation and purification, pass the raw material obtained after the second step through a specific gravity screening device, and use the principl...

Embodiment 2

[0014] Example 2, in the processing method of using low-quality recarburizer raw materials to produce high-quality recarburizers described in Example 1: the large-sized raw materials in the first step include crushed graphite, waste high-purity graphite, residual anode, graphitization Petroleum coke. The graphite fragments are the fragments after cleaning and breaking the used graphite electrode residues, and the diameter is generally 20-50cm; the waste high-purity graphite is the fragments after recycling and crushing of the waste high-purity graphite special-shaped parts, with a diameter of about 5 cm. -10cm; the residual anode is the residual part of the pre-baked anode after being used in the electrolytic cell of the aluminum plant, with a diameter of about 10-20cm; the graphitized petroleum coke is made of petroleum residues calcined at a high temperature of 3000 degrees, and the diameter is generally 1-5cm

Embodiment 3

[0015] Example 3, in the processing method for producing high-quality recarburizer using low-quality recarburizer raw materials described in Example 1 or 2: the particle size after crushing in the first step is 5-10 mm.

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Abstract

The invention provides a processing method for producing high-quality recarburizer by using low-quality recarburizer raw materials. The first step: crushing and screening; the second step: magnetic separation and purification; the third step: specific gravity separation and purification; the fourth step : color sorting and purification; the fifth step: index detection; the sixth step: formula design; the seventh step: computer automatic batching; the eighth step: automatic mixing and stirring; the ninth step: automatic weighing and packaging. The invention can gradually remove impurities such as metals, stones and silicon carbide in the raw materials, effectively reduce the nitrogen content, and become a special-grade low-sulfur and low-nitrogen recarburizer used for smelting special steel, thereby eliminating the need for high-quality recarburizers to produce high-quality raw materials. The use of low-grade raw materials can also produce high-grade high-quality recarburizers.

Description

technical field [0001] The invention relates to the field of carbon, and more particularly, to a processing method for producing high-quality recarburizers by using low-quality recarburizer raw materials. Background technique [0002] In the smelting process of iron and steel products, due to factors such as smelting time, holding time, and overheating time, the smelting loss of carbon elements in the molten iron increases, resulting in a decrease in the carbon content in the molten iron, resulting in The carbon content in the molten iron does not reach the theoretical value expected for refining. Carbon-containing substances added in order to supplement the carbon content lost during the smelting process of steel are called recarburizers. [0003] As the new smelting process develops and matures, the market has higher and higher requirements for recarburizers to meet the needs of high-quality smelting. The traditional production process of recarburizer is only a simple pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/00
CPCC21C7/0025Y02P10/20
Inventor 薛喜利汪洋沈丁董伟薛明虎
Owner 江苏嘉明碳素新材料有限公司