Waste salt treatment method

A treatment method and salt treatment technology, applied in the direction of solid waste removal, etc., can solve problems such as complex process flow, waste salt entrainment in flue gas, and large flue gas volume, so as to simplify the process flow, reduce processing equipment, and reduce failures rate effect

Pending Publication Date: 2021-10-29
上海羿诚环保科技有限公司
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The same kind of process uses the hierarchical decomposition carbonization process in the disposal process. The entire process is complicated and the process equipment is large, which increases the failure rate of the disposal system.
The amount of flue gas is large during the disposal process, which inevitably causes the problem of waste salt entrainment in the flue gas during the drying process, which increases the difficulty of tail gas disposal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waste salt treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] During the high-temperature treatment of waste salt, there are problems such as large flue gas content and easy generation of waste salt entrainment in flue gas, which leads to the difficulty of subsequent treatment of flue gas and many problems such as waste salt treatment system equipment.

[0021] In view of the above problems, the waste salt treatment method of the present invention is to melt and pyrolyze the waste salt in an electrode melting furnace, and control the oxygen content in the furnace to be lower than 1%. The above-mentioned organic matter in the waste salt is pyrolyzed by the heat of the molten state of the waste salt. During the disposal process, the furnace maintains an oxygen-free state with an oxygen content of less than 1%. The waste salt can be melted by the electrode melting furnace and produced The heat used for the pyrolysis of organic matter does not need to be introduced from the outside. The amount of flue gas generated during the entire di...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a waste salt treatment method. The waste salt treatment method comprises the following steps of melting and pyrolyzing waste salt in an electrode melting furnace, and controlling the oxygen content in the furnace to be lower than 1%. According to the waste salt treatment method, organic matters in the waste salt are subjected to sufficient thermal cracking under the condition that the oxygen content is lower than 1%, less flue gas is generated in the treatment process, and the problem that the flue gas carries the waste salt due to a large amount of flue gas is avoided, so that treatment equipment of the whole waste salt treatment system is reduced, the process treatment flow is simplified, the failure rate of the whole treatment system is reduced, and the difficulty of flue gas purification is further reduced.

Description

technical field [0001] The invention relates to a treatment method for waste salt. Background technique [0002] Industrial waste salt mainly comes from medicine, pesticide, printing and dyeing, electroplating and other fields, which contain a large amount of toxic and harmful metals and organic substances. With the rapid development of the above fields, how to effectively deal with these toxic and harmful industrial waste salt has become a widespread research topic. [0003] One of the treatment methods for industrial waste salt is high-temperature treatment. The high-temperature energy treatment method takes advantage of the fact that the organic impurities in industrial waste salt are easy to decompose at high temperature, and carbonizes the organic matter through high-temperature treatment to remove the impurities contained in industrial waste salt. of organic matter. This method has an obvious reduction effect on waste salt, and is considered to be an effective treatm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B09B3/00
Inventor戴尚武毛丁
Owner上海羿诚环保科技有限公司