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Production process and apapratus of composite calcium carbide deoxygenating and purifying agent

A composite deoxidation and production process technology, applied in the production field of the metallurgical industry, can solve the problems of high power consumption and large investment of calcium carbide

Inactive Publication Date: 2005-11-16
刘长福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the process of producing calcium carbide in my country is mainly produced by submerged arc furnace. The calcium carbide produced by this method has high power consumption and large investment.

Method used

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Embodiment Construction

[0005] The production process of the present invention includes: 1. selection of raw materials; 2. batching; 3. smelting; 4. casting; 5. packaging.

[0006] 1. Selection of raw materials: raw materials include lime, fluorite, coke or coal.

[0007] 2. Raw material requirements are as follows: Lime: CaO > 80%.

[0008] Fluorite: CaF 2 >80%

[0009] Coke, coal: fixed carbon C > 70%

[0010] 3. Ingredients: The ratio of ingredients can be adjusted appropriately according to the gas generation capacity of the calcium carbide composite purifier produced. After the batching is completed according to the batching ratio, it is crushed into a powder with a particle size of 80-120 mesh for use, and the lime is crushed into 1-6 cm.

[0011] 4. Melting: Put the pulverized raw materials into the graphite electrode crucible as the lining medium-frequency induction furnace. The furnace temperature is raised to 1400-2300 degrees, and then kept for 2.5-3 h...

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Abstract

The present invention uses lime as main raw material, uses fluorite and coke or coal as auxiliary material and adopts the processes of mixing, pulverizing, smelting and casting to obtain the invented compound deoxidand and desulfurizer which can absorb impurities in steel, clean molten steel, raise molten steel fluidity and raise steel quality.

Description

technical field [0001] The invention belongs to the production field of the metallurgical industry and relates to a production process of a calcium carbide composite purifying agent. Background technique [0002] At present, the process of producing calcium carbide in my country is mainly produced by submerged arc furnace. The calcium carbide produced by this method has high power consumption and large investment. The invention adopts an intermediate frequency induction furnace lined with an electrode graphite crucible to produce calcium carbide so that the power consumption is reduced and the product quality is stable. Contents of the invention [0003] The object of the present invention is to provide a method for smelting calcium carbide composite deoxidation purifying agent with stable production quality and reduced cost. [0004] The present invention is realized in the following way: the production process of the calcium carbide composite purifying agent of the pres...

Claims

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Application Information

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IPC IPC(8): C21C7/04
Inventor 刘长福
Owner 刘长福
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