High-concentration organic waste liquid plasma cracking and recombining system and method

A technology of organic waste liquid and plasma, applied in combustion methods, lighting and heating equipment, combustion types, etc., can solve the problems of insufficient safety, incomplete treatment, and insufficient incineration area, so as to reduce treatment costs and improve purification. effect of effect

Pending Publication Date: 2021-06-08
SOUTHWESTERN INST OF PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the Chinese patent (application number 201621365076.5) "High-level waste liquid treatment device", the incineration area is not enough, and there is a risk of incompl

Method used

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  • High-concentration organic waste liquid plasma cracking and recombining system and method
  • High-concentration organic waste liquid plasma cracking and recombining system and method

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Embodiment 1

[0032] The plasma cracking recombination method of fluorine-containing organic waste liquid comprises the following steps:

[0033] Step 1. The plasma torch 2 is ignited and preheated, and the temperature of the cracking zone 3 reaches 800-1000° C.; the additive can be borosilicate. The heating operation can be performed in a plasma melting furnace, and the slag collection can be completed through the ash collector 4, which is common knowledge of those skilled in the art.

[0034] Step 2. The fluorine-containing organic waste liquid is pumped to the atomizing head in the waste liquid storage tank 1. A heater can be installed in the middle of the pipeline to heat the waste liquid to 80-100°C; the droplets ejected from the atomizing head are directly Entering the plasma arc area (i.e. cracking zone 3), the cracking produces CO, C m Hn, HF gas;

[0035] Step 3. Mix the CO, CmHn, and HF gases described in step 2 with air in a mixing volume ratio of 1.5:1 to 1:1; burn in the refo...

Embodiment 2

[0049] Such as figure 1 As shown, the difference between this embodiment and embodiment 1 is:

[0050] (1) In step 2, the fluorine-containing organic waste liquid is mixed with compressed air and sprayed into the plasma arc to improve the atomization effect;

[0051] (2) Water vapor is mixed into the working gas of the plasma torch to provide the active hydrogen ions and oxygen ions required for the cracking of fluorine-containing organic waste liquid, and completely convert the fluorine in the waste liquid into hydrogen fluoride.

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Abstract

The invention belongs to a plasma waste treatment technology, and particularly relates to a high-concentration organic waste liquid plasma cracking and recombining system and method. The end part of a cracking area is connected with a plasma torch, one side of a reforming chamber is sequentially connected with a quench tower, an alkaline tower and a demister through a pipeline, and the demister is connected with a chimney through an induced draft fan. The plasma torch is ignited and preheated, the temperature of the cracking area is increased, fluorine-containing organic waste liquid is heated, cracking gas is generated in the cracking area and mixed with air to be combusted to generate a flue gas mixture, and then the flue gas mixture is discharged to a chimney after being cooled, neutralized and demisted. The pyrolysis efficiency can be improved, the pollutant removal rate is high, the organic waste liquid pyrolysis gas is thoroughly combusted, toxic substances such as dioxin cannot be generated, and the purification effect is effectively improved.

Description

technical field [0001] The invention belongs to plasma waste treatment technology, in particular to a high-concentration organic waste liquid plasma cracking and recombination system and method. Background technique [0002] At present, plasma technology has been widely used in machinery, metallurgy, materials and other fields. The application of plasma technology to waste treatment is a new process developed in the past two decades. Plasma treatment of waste technology is to use the high-temperature thermal plasma generated by the plasma torch to quickly decompose and destroy the waste, in which the organic matter is pyrolyzed into flammable small molecular substances, and the inorganic matter is melted at high temperature to form a vitreous residue. This technology has the characteristics of fast response, low secondary pollution, and wide application range. It overcomes the shortcomings of traditional treatment technologies such as incineration and chemical treatment, whi...

Claims

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Application Information

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IPC IPC(8): F23G7/04F23G5/027F23G5/46F23G5/50
CPCF23G5/027F23G5/46F23G5/50F23G7/04
Inventor 程昌明王珂陈伦江兰伟刘川东赵淳
Owner SOUTHWESTERN INST OF PHYSICS
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