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A composite structure of pre-melted slag

A composite structure, pre-melting slag technology, applied in recycling technology and other directions, can solve problems such as restricting production efficiency, wasting energy, wasting slag waste heat, etc., to reduce enterprise costs, improve production efficiency, and save energy.

Inactive Publication Date: 2011-12-28
LIAONING TIANHE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this device can efficiently and continuously produce metallurgical pre-slag, it also directly casts and cools the molten pre-slag, which also wastes a lot of slag waste heat, wastes energy, and restricts production efficiency.

Method used

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  • A composite structure of pre-melted slag
  • A composite structure of pre-melted slag
  • A composite structure of pre-melted slag

Examples

Experimental program
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Embodiment Construction

[0014] The present invention will be further described below in conjunction with embodiment:

[0015] The present invention is implemented in the following manner: Taking the production of calcium aluminate as an example, high calcium oxide material, high alumina bauxite and aluminum ash are ground into powder in advance, then mixed in proportion, and then added to a high-temperature container, and the melting temperature is 1450-1600 ℃, during the melting process, the mixed high calcium oxide material, high alumina bauxite and aluminum ash raw materials are added to the surface of the molten slag according to 5% of the molten slag amount, and the raw materials are sintered by using the excess heat of the molten slag , and finally broken down to form as figure 2 Pre-slag body of composite structure of the structure shown. The phase composition of pre-slag and sintered state was analyzed by X-ray diffraction, and the results are as follows: image 3 , 4 shown. It can be se...

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PUM

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Abstract

The invention provides a pre-melted slag with a composite structure, which can utilize the heat of the molten slag without adding equipment, thereby saving a large amount of energy. In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions: a pre-slag of a composite structure includes an internal pre-slag and a wrapped external sintered slag shell; it is characterized in that: The pre-melted slag raw material is added to the surface of the molten pre-melted slag in proportion, and the pre-melted slag raw material is pre-melted and sintered by using the waste heat of the molten pre-melted slag to form a pre-melted slag body with a new composite structure. The pre-melted slag body of this new composite structure has the following technical features. The sintered slag shell 1 is located on the periphery or edge of the pre-melted slag 2. The sintered slag shell 1 can be in any shape, and the pre-melted slag 2 can be a sphere or a block. , the main phase groups of the sintered slag shell 1 and the pre-slag body 2 are the same, so the performance of the pre-slag product is not affected.

Description

technical field [0001] The invention relates to a pre-melted slag with a composite structure, and belongs to the technical field of metallurgical auxiliary material production technology. Background technique [0002] With people's pursuit of steel purification and the technical demand for producing high value-added products, metallurgical pre-slag is increasingly used in steelmaking and refining processes to remove excess phosphorus, Sulfur and non-metallic inclusions. The traditional metallurgical pre-slag production method is to heat and melt the slag raw material, directly pour the molten pre-slag into shape, and then break it after cooling to produce products that meet the needs of users. This kind of production method wastes a lot of slag waste heat, restricts production efficiency, and can no longer adapt to the current pursuit of low-cost and high-efficiency production by enterprises. Therefore, it is necessary to develop a new type of pre-melted slag with a compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/064C21B3/06
CPCY02W30/50
Inventor 陈云天
Owner LIAONING TIANHE TECH