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Environment-friendly and low-cost regenerated aluminum alloy preparation method and device

A low-cost, aluminum alloy technology, applied in the field of aluminum alloy production, can solve irreparable problems, achieve the effects of reducing output, reducing water temperature, and reducing gas consumption

Inactive Publication Date: 2020-05-12
临沂利信铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The current secondary aluminum alloy production process cannot make up for the above defects

Method used

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  • Environment-friendly and low-cost regenerated aluminum alloy preparation method and device

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Experimental program
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Effect test

Embodiment 1

[0037] A green and low-cost secondary aluminum alloy preparation method and equipment thereof, specifically prepared through the following steps:

[0038] Step 1. Aluminum scrap inspection: sampling, sample preparation, melting, forming, sample processing, testing;

[0039] Step 2. Pretreatment of waste aluminum: crushing and sorting;

[0040] Step three, ingredients;

[0041] Step 4, smelting: charging and charging furnace, melting, slag removal;

[0042] Step 5, refining: component detection, component adjustment; degassing;

[0043] Step 6. Casting and forming: aluminum liquid transfer, aluminum liquid filtration, injection molding

[0044] Step 7. Flue gas treatment: bag dust collection, denitrification.

[0045] The specific operation of the first step is: after sampling the waste aluminum material, melt it in a crucible, cast it into a sample block for spectral detection, process it into a sample block with a lathe, and detect the chemical composition with a spectrom...

Embodiment 2

[0053] The six-burner double-chamber furnace in the present invention is divided into two chambers, a total of six burners, so that the capacity of the furnace is increased from 30 tons to 60 tons, and the aluminum liquid will not completely drain when the aluminum liquid is exported, which can ensure that the aluminum liquid The stability of the flow rate, after 30 tons of molten aluminum flows out, the remaining 30 tons of molten aluminum is thrown into the melting furnace; when feeding continues into the melting furnace, the solid aluminum material will sink into the molten aluminum after entering the melting furnace, and contact with high-temperature gas The time is very short, which effectively prevents the burning of aluminum materials and reduces solid emissions.

[0054] The whole set of furnace has six burners, which perform combustion and heat absorption operations in turn. During the whole operation process, at least one heating device performs fire-spraying heating...

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Abstract

The invention discloses an environment-friendly and low-cost regenerated aluminum alloy preparation method and device. A regenerated aluminum alloy is specifically prepared through the following stepsof waste aluminum material inspection, waste aluminum material pretreatment, batching, smelting, refining, degassing, cast forming, and flue gas treatment. The environment-friendly and low-cost regenerated aluminum alloy preparation method has the following characteristics that waste aluminum is smelted through a six-burner double chamber furnace, an aluminum material is prevented from making direct contact with a flame, burning loss is reduced, the output quantity of aluminum oxide is decreased, and thus the discharging quantity of aluminum ash is decreased. By using a specially-designed flue gas recycling and reusing device, part of flue gas is recycled and burnt again, thus a nitrogen oxide and dioxin in the flue gas are decomposed, thus emission of harmful gas is reduced, and meanwhile, energy consumption is also reduced. By removing slag through a rake with a self-locking device, the working efficiency is improved, and burning loss is reduced. By using a filter box with a heatingcover plate and a flow groove, the drainage temperature is decreased, gas consumption is indirectly reduced, and waste gas emission is reduced.

Description

technical field [0001] The invention belongs to the field of aluminum alloy production, and in particular relates to a green and low-cost recycled aluminum alloy preparation method and equipment thereof. Background technique [0002] With the development of our society, bauxite resources are becoming more and more scarce. At the same time, the output of waste aluminum is increasing. It is urgent to recycle waste aluminum in a more environmentally friendly way to supplement the national construction of aluminum alloy products. needs. [0003] At present, the general production methods of secondary aluminum alloys are: 1. Inspection of waste aluminum materials; 2. Pretreatment of waste aluminum materials, crushing and magnetic separation to remove ferromagnetic substances; 3. Batching; 4. Melting: adding materials to furnace; : Component detection and adjustment; 6. Casting; 7. Flue gas treatment. [0004] The production enterprises in my country's secondary aluminum industr...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C1/06
CPCC22C1/026C22C1/06
Inventor 王永利孟照伟李炎军吴国清文富华沈自豪
Owner 临沂利信铝业有限公司
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