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Treatment system for waste salt recycling treatment and application thereof

A treatment system and resource-based technology, applied in the field of waste salt resource treatment system, can solve the problems of occupation, secondary pollution, large land, etc., achieve stable use, reduce public works consumption, and generate less mixed salt Effect

Pending Publication Date: 2019-09-06
北京航天环境工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This disposal method not only occupies a large amount of land, but also easily causes secondary pollution

Method used

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  • Treatment system for waste salt recycling treatment and application thereof
  • Treatment system for waste salt recycling treatment and application thereof
  • Treatment system for waste salt recycling treatment and application thereof

Examples

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Embodiment Construction

[0049] The present invention will be described in further detail below in conjunction with specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0050] Structures not described in detail in the present invention can be understood as conventional structures in the art.

[0051] A treatment system for waste salt resource treatment, such as figure 1 As shown, the treatment system includes a carbonization and pyrolysis system of waste salt, a dissolution and filtration system of carbon-containing salt residue and an evaporation and salt separation system connected in sequence, and the carbonization and pyrolysis system of waste salt can treat the waste salt produced by sodium chloride. , sodium sulfate monomer salt or the waste salt I that mixed waste salt is formed carries out carbonization pyrolysis treatment; The dissolution filtration system of described carbon-containing salt slag can...

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Abstract

The invention relates to a treatment system for waste salt recycling treatment. The treatment system comprises a waste salt carbonization pyrolysis system, a coke-containing salt slag dissolving and filtering system and an evaporation and desalination system which are sequentially connected with one another, wherein the waste salt carbonization pyrolysis system can be used for carrying out carbonization pyrolysis treatment on waste salt I composed of sodium chloride monomer salt, sodium sulfate monomer salt or the mixed waste salt; the coke-containing salt slag dissolving and filtering systemcan be used for carrying out the dissolution and filtration operation on the coke-containing salt slag obtained after the treatment by the waste salt carbonization pyrolysis system; and the evaporation and desalination system can be used for carrying out the evaporation and concentration, fractional crystallization and drying treatment on strong brine obtained after the treatment by the coke-containing salt slag dissolving and filtering system, so that salt products are obtained. According to the treatment system, with the industrial waste salt as a raw material, organic pollutants are removedfrom the waste salt, desalination treatment is carried out on mixed inorganic salt, and finally the industrial secondary salt products are produced, such as anhydrous sodium sulfates, sodium chlorides, sodium bicarbonate and other finished salt, so that the recycling of the waste salt can be realized; and the system can be applied to the waste salt recycling treatment.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a treatment system for recycling waste salt and its application. Background technique [0002] Industrial waste salt mainly comes from coal chemical industry, pesticide, chemical fertilizer, biochemical industry and other industries. These industrial waste salts often cannot be reused in industrial production because they contain a certain amount of organic matter. The relevant national legal documents also classify these waste salts as dangerous waste. Waste salt is often complex in composition and highly toxic and harmful, which is a difficult point in the treatment of hazardous waste industries, and the treatment cost is extremely high. The treatment cost per ton is more than 3,500 yuan, which often brings a great burden to enterprises and also causes waste of resources. [0003] At present, domestic and foreign technologies for waste salt treatment are relativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00C01D7/00
CPCB09B3/00B09B5/00C01D7/00B09B2101/02B09B3/40
Inventor 葛超逸任向阳贾文峰吴雅菲李腾龙刘兆言张弛
Owner 北京航天环境工程有限公司
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