Solid-phase decarburization method of high-carbon Fe-Mn alloy

A technology of high-carbon ferromanganese and ferromanganese alloy, which is applied in the field of solid-phase decarburization of high-carbon ferromanganese alloy, can solve the problems of poor comprehensive effect of decarburization, low decarbonization efficiency, and high energy consumption of decarbonization, so as to reduce energy consumption , fast decarburization speed and simple process

Inactive Publication Date: 2012-08-29
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0002] Ferromanganese alloy is the most important raw material in the iron and steel industry. With the rapid development of chromium-manganese stainless steel and low-carbon alloy steel, the decarburization of high-carbon ferromanganese alloy has become a key to iron and steel metallurgy technology. Due to the high vapor pressure of manganese, The binding energy of manganese and oxygen is relatively large, which seriously affects the decarburization of liquid-phase ferromanganese, such as low decarburization efficiency, high decarbonization energy consumption, serious environmental pollution, and poor overall decarburization effect

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  • Solid-phase decarburization method of high-carbon Fe-Mn alloy

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[0067] The present invention will be further described below in conjunction with the accompanying drawings:

[0068] figure 1 As shown, it is the state diagram of microwave heating solid-phase decarburization, and the positions of each part should be correct and operate in sequence.

[0069]The preparation is carried out in a microwave heating solid-phase decarburization furnace. The lower part of the microwave decarburization furnace 1 is the furnace seat 2, the upper part is the sealing cover 4 and the furnace cover 3, and the opening and closing are controlled by the opening and closing frame 5. 3. The sealing cover 4 is provided with a thermocouple 13, an air hole 10, a microwave generator 6 is provided on the furnace wall of the microwave decarburization furnace 1, and the microwave generator 6 is a furnace cavity 9 in the microwave decarburization furnace 1, In the middle and lower part of the furnace cavity 9 is the crucible seat 7, in the upper part of the crucible se...

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Abstract

The invention relates to a solid-phase decarburization method of high-carbon Fe-Mn alloy, and the method aims at the actual situation that the carbon content of Fe-Mn alloy powder is high and adopts the solid-phase decarburization technology. The method comprises the following steps: by using calcium carbonate powder as decarbonizer and nitrogen as protective gas for decarburization, decarburization is performed in a microwave decarbonization furnace, wherein the temperature of microwave heating is 1000 DEG C, the heating time is 60min, the specific power of microwave heating is 10KW / kg and the rate of decarburization is up to 85.78%; and the obtained low and medium carbon Fe-Mn alloy is briquetted by a briquetting machine to prepare a block material for use, wherein the calcium oxide in the material is a good desulfurization and dephosphorization agent, and the generated carbon monoxide gas can be recycled. The method does not discharge metallurgical residue and cause the pollutions caused by waste gas, wastewater and residue, is a clean decarburization technology and is an ideal solid-phase decarburization method of high-carbon Fe-Mn alloy.

Description

technical field [0001] The invention relates to a solid-phase decarburization method for high-carbon ferromanganese alloys, and belongs to the technical field of removing carbon elements from ferrous manganese. Background technique [0002] Ferromanganese alloy is the most important raw material in the iron and steel industry. With the rapid development of chromium-manganese series stainless steel and low-carbon alloy steel, the decarburization of high-carbon ferromanganese alloy has become a key to iron and steel metallurgy technology. Due to the high vapor pressure of manganese, The binding energy of manganese and oxygen is large, which seriously affects the decarburization of liquid phase ferromanganese, such as low decarburization efficiency, high decarburization energy consumption, serious environmental pollution, and poor comprehensive decarburization effect. [0003] Solid-phase decarburization has the advantages of low reaction temperature, good selectivity, and shor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/00
Inventor 陈津郭丽娜刘科刘金营赵晶张猛
Owner TAIYUAN UNIV OF TECH
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