Method and device for treating aluminum waste water slag, products and application

Active Publication Date: 2017-09-19
佛山市吉力达铝材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The drying process also consumes so much energy that it is not economically viable
[0004] In addition to aluminum hydroxide,

Method used

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  • Method and device for treating aluminum waste water slag, products and application
  • Method and device for treating aluminum waste water slag, products and application

Examples

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[0029] Hereinafter, the present invention will be further described with reference to the drawings and specific implementations. It should be noted that, provided that there is no conflict, the following embodiments or technical features can be combined to form new embodiments. .

[0030] The invention provides a method for treating aluminum wastewater slag, and the process flow chart is as follows figure 1 Shown, including:

[0031] Preliminary drying step: Preliminarily drying the waste water residue to a water content of 5-30%;

[0032] In this step, a conventional method can be used to quickly dry the wastewater slag. The drying method includes but not limited to sun drying, hot air drying or rotary kiln drying, etc., but considering the cost and construction period, the rotary kiln drying is adopted. The most appropriate way; preferably, dry to a moisture content of 25-30%;

[0033] Stacking steps: stacking and curing the initially dried waste water residue for 6-24h;

[0034] In...

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PUM

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Abstract

The invention discloses a method for treating aluminum waste water slag. The method comprises the sequential steps of preliminary drying, stacking, pulverization, microwave drying, high-speed dispersion and collection. Meanwhile, the invention provides a treatment device implementing the method. The device comprises a stacking box, a pulverizer, a conveying belt, a microwave box, a high-speed disperser, a cyclone separator, a material collection box and dust collectors. Products obtained after treatment conducted through the method or device comprise a powder material and ultrafine powder. The powder material and the ultrafine powder can be applied to production preparation of heat-preservation materials. The method is low in energy consumption; and under the circumstances that energy consumption is low, the raw material requirement is low and emission is low, the aluminum waste water slag can be dried and pulverized into the powder material step by step, wherein the powder material is good in orderliness and light in character.

Description

technical field [0001] The invention relates to the technical field of industrial waste treatment, in particular to a treatment method for aluminum waste water slag, a device, a product and an application thereof. Background technique [0002] At present, the aluminum industry produces waste water in the production process, and the waste water will form a large amount of waste water slag after alkali precipitation. Because this kind of waste water slag contains a large amount of aluminum ions, it is very harmful to the human body, so the country defines it as hazardous waste. [0003] At present, the commonly used treatment method for aluminum oxidation wastewater slag is landfill. But there are also many companies that will secretly discharge the factory, which will greatly pollute the environment. The difficulty in the treatment of waste water slag lies in its high water content, and it needs to be dried to recycle it. The drying process also consumes so much energy tha...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00B02C21/00
CPCB02C21/00B09B3/00B09B5/00
Inventor 李克平李孟方
Owner 佛山市吉力达铝材科技有限公司
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