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Slag treatment process and device

A treatment process and treatment device technology, applied in the field of slag treatment process and device, can solve the problems of unfavorable environment and human health, damage to land resources, etc., and achieve the effects of reasonable arrangement of process steps, simple and reasonable structure, and easy implementation.

Active Publication Date: 2012-07-04
GUANGDONG DECHENG ENVIROMENTAL PROTECTION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, landfill treatment will damage limited land resources; if it is directly made into cement unfired bricks and other cement unfired prefabricated parts, these bricks will contain residual non-ferrous metals and heavy metals, which is harmful to the environment and human health of

Method used

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  • Slag treatment process and device
  • Slag treatment process and device

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Embodiment Construction

[0026] A process for treating slag, comprising the steps of:

[0027] c) Gravity screening is carried out on the slag, from which non-ferrous metals and heavy metals are separated and the finished slag is obtained.

[0028] Further as a preferred embodiment, before step c), the following steps are also included in sequence:

[0029] a) Crushing the slag into uniform fine particles to obtain slag particles;

[0030] b) removing iron from the slag particles to separate iron from the slag particles;

[0031] Also, the slag mentioned in step c) is the slag particles treated in step b); after step c), it also includes the step of making the finished slag into cement unfired bricks and other cement unfired prefabricated parts.

[0032] As a further preferred embodiment, the crushing process in the step a) is two times, namely the first power crushing of the slag and the subsequent fine crushing.

[0033] As a further preferred embodiment, the iron removal ...

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Abstract

The invention discloses a slag treatment process which comprises the following steps of: carrying out gravity screening on the slag to separate out non-ferrous metals and heavy metals and obtain finished slag product. The invention also discloses a slag treatment device which comprises a gravity screening module with a function of screening out the non-ferrous metals and heavy metals from the slag. According to the invention, the slag treatment process comprises a gravity screening step for screening the non-ferrous metals and heavy metals out of slag waste, the slag product is the environment-friendly and harmless finished slag product and the metal materials can be recycled; the slag treatment device is designed for realizing the process; and the process and the device can be applied to slag treatment operation in refuse burning engineering.

Description

technical field [0001] The invention relates to a treatment process for disposing of waste slag and a corresponding device. Background technique [0002] Whether in mining, metallurgy or municipal waste disposal and other industries related to boiler incineration, a large amount of slag will inevitably be produced. Slag is a complex mixture containing a large proportion of coal ash, as well as a lot of scrap iron, non-ferrous metals and heavy metals. The conventional slag treatment method is to transport it to landfill, or directly crush and filter it to make cement unfired bricks and other cement unfired prefabricated parts, such as ceramic tiles, for waste utilization. However, landfill treatment will damage limited land resources; if it is directly made into cement unfired bricks and other cement unfired prefabricated parts, these bricks will contain residual non-ferrous metals and heavy metals, which is harmful to the environment and human health of. Therefore, there ...

Claims

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Application Information

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IPC IPC(8): C04B5/00
Inventor 许俊
Owner GUANGDONG DECHENG ENVIROMENTAL PROTECTION TECH