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Metallic aluminum deoxidizing agent and preparation method thereof

A technology of aluminum deoxidizer and deoxidizer, applied in the field of metallurgy, can solve problems such as imperfection, and achieve the effects of reducing treatment costs, reducing costs, and realizing recycling.

Inactive Publication Date: 2018-07-17
青海源通工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, my country's overall waste aluminum recycling system is not perfect, and some of the waste aluminum products produced are abandoned and not effectively utilized. Therefore, how to use the waste aluminum ash in the aluminum industry to prepare deoxidizers to achieve waste recovery. It is also crucial to reduce the cost of smelting and tapping

Method used

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  • Metallic aluminum deoxidizing agent and preparation method thereof

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preparation example Construction

[0029] A method for preparing a metal aluminum deoxidizer, the deoxidizer is prepared from waste aluminum ash, mainly comprising the following steps:

[0030] (1) Ball milling: the screened aluminum ash is ground through a ball mill to obtain aluminum ash powder with a particle size of 1 to 7 mm;

[0031] (2) Screening: the ground aluminum ash powder is screened by a drum sieve, and is divided into metal aluminum on the sieve and aluminum ash slag on the undersieve;

[0032] (3) Melting aluminum: put the sieved metal aluminum into an electric melting aluminum furnace to heat and melt, and the temperature is controlled at 700-720°C;

[0033] (4) Slag removal: after the metal aluminum is melted, remove the molten aluminum slag formed on the surface of the metal aluminum melt, and transfer the aluminum liquid;

[0034] (5) Casting: casting the molten aluminum in step (4) to form finished aluminum ingots;

[0035] (6) Ball briquetting: putting the aluminum ash sieved in step (2)...

Embodiment 1

[0041] like figure 1 Shown, be the production process flowchart of the present invention:

[0042] When preparing the metal aluminum deoxidizer, waste aluminum ash is selected as raw material, and the waste aluminum ash mainly includes the following components: 15% Al, 40% Al 2 o 3 and 15% metal oxide, SiO 2 , MgO and CaO.

[0043] First of all, the waste aluminum ash is ball milled, and the metal aluminum particles in the aluminum ash are continuously smashed together due to the good ductility of aluminum, while the components (aluminum slag) in the aluminum ash other than metal aluminum are not ductile. And be further pulverized, pulverized to the aluminum ash powder that particle diameter is 1mm;

[0044] Secondly, use the drum sieve to sieve the ground material, and divide it into metal aluminum on the sieve and aluminum ash slag on the sieve.

[0045] Put the sieved metal aluminum into the electric melting aluminum furnace to heat and melt, and the melting temperatur...

Embodiment 2

[0049] like figure 1 Shown, be the production process flowchart of the present invention:

[0050] When preparing the metal aluminum deoxidizer, waste aluminum ash is selected as raw material, and the waste aluminum ash mainly contains the following components: 25% Al, 30% Al 2 o 3 and 7% metal oxide, SiO 2 and MgO.

[0051] First of all, the waste aluminum ash is ball milled, and the metal aluminum particles in the aluminum ash are continuously smashed together due to the good ductility of aluminum, while the components (aluminum slag) in the aluminum ash other than metal aluminum are not ductile. And be further pulverized, pulverized to the aluminum ash powder that particle size is 7mm;

[0052] Secondly, use the drum sieve to sieve the ground material, and divide it into metal aluminum on the sieve and aluminum ash slag on the sieve.

[0053] Put the sieved metal aluminum into the electric melting aluminum furnace to heat and melt, and the melting temperature is 720°C. ...

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Abstract

The invention relates to the technical field of metallurgy, in particular to a metallic aluminum deoxidizing agent and a preparation method thereof. The deoxidizing agent is made of aluminum scruff ash, aluminum ash clinker is obtained by means of ball milling and screening and then is put into a ball pressing machine for pressing and curing, and accordingly the metallic aluminum deoxidizing agentcan be obtained. When the method is used for preparing the deoxidizing agent, the technology is simple, wasting of resources can be effectively reduced, cost input of deoxidizing ingredients is reduced, and waste can be recycled and reutilized. The deoxidizing agent obtained through the method can be applied to the working procedures of ladle refining and molten steel purifying of steel works, deoxidizing and desulfuration capacity is high and the metallic aluminum deoxidizing agent can be widely applied and popularized.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a metal aluminum deoxidizer and a preparation method thereof. Background technique [0002] Among today's metal materials, aluminum is the second largest metal material after steel. Aluminum and its alloys are characterized by light weight and high strength, good conductivity, ductility and renewability, and are widely used in construction, light industry, transportation, aerospace and national defense, and the market demand is increasing. It plays an indispensable role in the construction of the entire national economy. In the process of aluminum smelting and forming, a variety of by-products will be produced. As the main by-product of the aluminum industry—aluminum ash, it is produced in all processes of smelting aluminum and aluminum alloys. The aluminum ash just out of the furnace usually contains 30-70% metallic aluminum. As a deoxidizer, metal aluminum has been widely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/06C22B7/00C22B21/00
CPCC21C7/06C22B7/001C22B21/0069Y02P10/20
Inventor 焦大通
Owner 青海源通工贸有限公司
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