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Magnesium smelting raw material pellet capable of improving transverse tank magnesium smelting efficiency and preparation method thereof

A raw material and magnesium smelting technology, applied in the field of magnesium smelting, can solve the problems of high content of crude magnesium and silicon, difficult to improve, long magnesium smelting time, etc., and achieve the effects of improving magnesium recovery rate, improving recovery rate and improving purity.

Inactive Publication Date: 2014-08-13
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The crude magnesium recovery rate of the existing magnesium smelting raw material pellets has reached a bottleneck, and it is difficult to improve, and the existing magnesium smelting method takes a long time to smelt magnesium, and the silicon content in the crude magnesium is relatively high

Method used

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  • Magnesium smelting raw material pellet capable of improving transverse tank magnesium smelting efficiency and preparation method thereof
  • Magnesium smelting raw material pellet capable of improving transverse tank magnesium smelting efficiency and preparation method thereof
  • Magnesium smelting raw material pellet capable of improving transverse tank magnesium smelting efficiency and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a magnesium-smelting raw material pellet that can improve the efficiency of horizontal tank magnesium-smelting. The raw materials of the magnesium-smelting raw material pellet include calcined white powder, ferrosilicon powder and fluorite powder. The magnesium-smelting raw material pellet The raw material of the group also includes coal powder, and the raw material of the described magnesium-smelting raw material pellet is made up of the following raw materials:

[0039] Calcined white powder 400g, ferrosilicon powder 50g, fluorite powder 10g, coal powder 40g.

[0040] Preparation method: use calcined white, ferrosilicon ore, fluorite and coal ore as raw materials, and grind them into fine powder with a ball mill, so that the particle size of calcined white powder is less than 100 mesh, the particle size of ferrosilicon powder is less than 200 mesh, and the particle size of fluorite powder is less than 200 mesh, coal powder particle size is les...

Embodiment 2

[0047] This embodiment provides a magnesium-smelting raw material pellet that can improve the efficiency of horizontal tank magnesium-smelting. The raw materials of the magnesium-smelting raw material pellet include calcined white powder, ferrosilicon powder and fluorite powder. The magnesium-smelting raw material pellet The raw material of the group also includes coal powder, and the raw material of the described magnesium-smelting raw material pellet is made up of the following raw materials:

[0048] Calcined white powder 400g, ferrosilicon powder 25g, fluorite powder 10g, coal powder 65g.

[0049] The preparation method was the same as in Example 1 to obtain 500 g magnesium refining raw material pellets.

[0050] In the kiln, under the vacuum environment of 5Pa, the magnesium-smelting raw material pellets were heated at 1200°C for 10 hours, and 435g of crude magnesium was collected at the crystallizer of the horizontal tank. The recovery rate of crude magnesium reaches 87...

Embodiment 3

[0052] This embodiment provides a magnesium-smelting raw material pellet that can improve the efficiency of horizontal tank magnesium-smelting. The raw materials of the magnesium-smelting raw material pellet include calcined white powder, ferrosilicon powder and fluorite powder. The magnesium-smelting raw material pellet The raw material of the group also includes coal powder, and the raw material of the described magnesium-smelting raw material pellet is made up of the following raw materials:

[0053] Calcined white powder 400g, ferrosilicon powder 30g, fluorite powder 15g, coal powder 55g.

[0054] The preparation method was the same as in Example 1 to obtain 500 g magnesium refining raw material pellets.

[0055] In the kiln, under the vacuum environment of 5Pa, the magnesium-smelting raw material pellets were heated at 1200°C for 10 hours, and 435g of crude magnesium was collected at the crystallizer of the horizontal tank. The recovery rate of crude magnesium reaches 87...

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Abstract

The invention provides a magnesium smelting raw material pellet capable of improving transverse tank magnesium smelting efficiency. Raw materials of the magnesium smelting raw material pellet comprise the following components in percentage by weight: 80% of calcined dolomite powder, 5-10% of ferrosilicon powder, 2-4.8% of fluorite powder and 5.2-13% of pulverized coal, wherein the total weight of the raw materials is 100%. Calcined dolomite, ferrosilicon ores, fluorite and coal ores are used as raw materials, and are respectively ground into fine powder by virtue of a ball mill so as to ensure that the particle size of the calcined dolomite powder is less than 100 meshes, the particle size of the ferrosilicon powder is less than 200 meshes, the particle size of the fluorite powder is less than 200 meshes, and the particle size of the pulverized coal is less than 200 meshes; the obtained calcined dolomite powder, ferrosilicon powder, fluorite powder and pulverized coal are sequentially mixed uniformly, then are added into a two-roller ball press machine without adding any binding agent, and are directly pressed to obtain the magnesium smelting raw material pellet. The magnesium smelting raw material pellet provided by the invention can be used for effectively improving the magnesium recovery ratio, saving the recovery time, improving the production efficiency of the magnesium industry, reducing the cost, and providing a larger space for the development of the industry.

Description

technical field [0001] The invention belongs to the field of magnesium smelting, and relates to pellets for magnesium smelting, in particular to a magnesium smelting raw material pellet capable of improving the efficiency of magnesium smelting in a horizontal tank and a preparation method thereof. Background technique [0002] Magnesium is the third largest metal engineering material after steel and aluminum. It has many excellent properties and has a very wide application prospect. With the breakthrough of the two bottlenecks of technology and price, the global consumption of magnesium is increasing rapidly at an annual rate of 20%, which is unprecedented in the application of modern engineering metal materials. As the lightest engineering metal materials, magnesium and its alloys have a series of advantages such as light specific gravity, high specific strength, good damping and machinability, good thermal conductivity, strong electromagnetic shielding ability, good vibrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B26/22C22B1/24
Inventor 马幼平杨蕾赵刚赵向东
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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