CN212157189U - High concentration organic waste liquid plasma schizolysis recombination system - Google Patents
High concentration organic waste liquid plasma schizolysis recombination system Download PDFInfo
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- CN212157189U CN212157189U CN201922164275.XU CN201922164275U CN212157189U CN 212157189 U CN212157189 U CN 212157189U CN 201922164275 U CN201922164275 U CN 201922164275U CN 212157189 U CN212157189 U CN 212157189U
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Abstract
The utility model belongs to plasma waste treatment technique specifically is a high concentration organic waste liquid plasma schizolysis recombination system, and at the end connection plasma torch of schizolysis district, reformer chamber one side is through pipeline quench tower, alkaline tower and defroster in proper order, and the defroster passes through the draught fan and connects the chimney. And igniting and preheating the plasma torch, raising the temperature of a cracking zone, heating the fluorine-containing organic waste liquid, generating cracking gas in the cracking zone, mixing the cracking gas with air, then combusting the mixture to generate a flue gas mixture, cooling, neutralizing and demisting the mixture, and then discharging the mixture to a chimney. The cracking efficiency can be improved, the pollutant removal rate is high, the organic waste liquid cracking gas is thoroughly combusted, no toxic substances such as dioxin are generated, and the purification effect is effectively improved.
Description
Technical Field
The utility model belongs to plasma waste treatment technique, concretely relates to high concentration organic waste liquid plasma schizolysis recombination system.
Background
At present, the plasma technology is widely applied to the fields of machinery, metallurgy, materials and the like, and the application of the plasma technology to waste treatment is a new process developed in the last two decades. The waste treatment technology by using plasma is to utilize high-temperature thermal plasma generated by a plasma torch to rapidly decompose and destroy waste, wherein organic matters are pyrolyzed into combustible small molecular substances, and inorganic matters are fused at high temperature to generate glass-like residues. The technology has the characteristics of high reaction speed, small secondary pollution, wide application range and the like, and overcomes the defects of large secondary pollution, complex process, selectivity to waste and the like of the traditional treatment technology such as incineration, chemical treatment and the like. The plasma high-temperature melting and solidifying technology can obtain the high temperature higher than 1500 ℃, do not generate Dioxin (Dioxin) substances, and have more thorough treatment.
High-concentration organic waste liquid is a difficult problem in the field of hazardous waste treatment at present, and has high organic matter concentration, large chemical oxygen demand, strong toxicity and difficult degradation. The plasma pyrolysis incineration can quickly destroy organic matters, and is the most thorough method for solving the problem of high-concentration organic waste liquid.
In the "high-level waste liquid treatment apparatus" in chinese patent application No. 201621365076.5, there is a risk that the incineration area is insufficient and the treatment is incomplete. The method can suppress the energy cost in the treatment process to a low level, but has insufficient safety and incomplete waste treatment.
Disclosure of Invention
The utility model aims at providing a high concentration organic waste liquid plasma schizolysis recombination system, decomposition efficiency is high, the processing is thorough.
The technical scheme of the utility model as follows:
the utility model provides a high concentration organic waste liquid plasma schizolysis recombination system, includes plasma torch, schizolysis district and reforming chamber, the schizolysis district be located the lower extreme of reforming chamber one side, at the end connection plasma torch of schizolysis district, the pipeline is in proper order quench tower, alkaline tower and defroster in reforming chamber one side, the defroster passes through the draught fan and connects the chimney.
The alkaline washing towers comprise a primary alkaline washing tower and a secondary alkaline washing tower, an alkaline solution tank is arranged below the primary alkaline washing tower and the secondary alkaline washing tower, the top of a reforming chamber is connected with an emergency explosion venting valve through a pipeline, and the emergency explosion venting valve is connected with a chimney through a pipeline.
And an ash collector is arranged at the bottom of the reforming chamber.
The waste liquid storage tank is connected with an atomizing head, and the atomizing head is positioned in the cracking area.
The utility model discloses an effect as follows:
the organic waste liquid is atomized and sprayed into plasma electric arc, so that the cracking efficiency can be improved, and the pollutant removal rate is high;
the waste heat of the flue gas is used for preheating air and heating the organic waste liquid, so that the treatment cost of the system can be reduced;
step 3, the temperature of the reforming chamber is more than 900 ℃, organic waste liquid pyrolysis gas is thoroughly combusted, and toxic substances such as dioxin are not generated;
the generated flue gas is treated by cooling, washing, absorbing and demisting, and the purification effect is improved.
Drawings
FIG. 1 is a high concentration organic waste liquid plasma cracking recombination system;
in the figure: 1. a waste liquid storage tank; 2. a plasma torch; 3. a cleavage zone; 4. an ash collector; 5. a reforming chamber; 6. a fan; 7. a quench tower; 8. a primary caustic wash tower; 9. a secondary alkaline washing tower; 10. a demister; 11. a lye tank; 12. an induced draft fan; 13. a chimney; 14. an emergency explosion relief valve.
Detailed Description
The present invention will be further explained with reference to the drawings and the detailed description.
As shown in fig. 1, the cracking zone 3 is located at the lower end of the reforming chamber 5 side, and a plasma torch 2 is connected to the end of the cracking zone 3 and ignited by an atomizing head connected to a waste liquid tank 1. An ash collector 4 is installed at the bottom of the reforming chamber 5 while blowing air to the reforming chamber 5 by a blower 6.
One side of the reforming chamber 5 is sequentially provided with a quench tower 7, an alkaline tower and a demister 10 through pipelines, and the demister 10 is connected with a chimney 13 through a draught fan 12.
The alkaline washing tower can be designed into two stages, a first-stage alkaline washing tower 8 and a second-stage alkaline washing tower 9, an alkaline solution tank 11 is arranged below the alkaline washing towers, and waste gas alkaline solution is collected.
The top of the reforming chamber 5 is connected with an emergency explosion relief valve 14 through a pipeline for emergency discharge, and the exhaust gas is discharged to a chimney 13.
When the device is used, the plasma torch 2 is ignited for preheating, and the temperature of the cracking zone 3 reaches 800-1000 ℃;
the method comprises the following steps of (1) pumping fluorine-containing organic waste liquid into an atomizing head in a waste liquid storage tank 1, wherein a heater can be arranged in the middle of a pipeline, and heating the waste liquid to 80-100 ℃; the liquid drops sprayed by the atomizing head directly enter a plasma arc area (namely a cracking area 3) to be cracked to generate CO and CmHn, HF gas;
mixing CO, CmHn and HF gases with air (the mixing volume ratio is 1.5: 1-1: 1), and then burning the mixture in a reforming chamber 5 at the temperature of 900-1000 ℃ to generate CO2、H2O、HF、N2A flue gas mixture. The slag collection therein may be accomplished by an ash collector 4.
And rapidly cooling the flue gas mixture through a quenching tower 7, spraying alkali liquor sodium hydroxide into the flue gas mixture, performing neutralization operation, absorbing acid gas in the flue gas, and reducing the temperature of the flue gas to 30-70 ℃. The neutralization operation can be carried out by means of a caustic scrubber, which is common knowledge to the person skilled in the art. In this example, two-stage caustic washing is collected, i.e. neutralization is performed by passing through two caustic washing towers 8 and 9 in series.
After the demisting is completed by the demister 10, the remaining flue gas is discharged through a chimney 13 via a draught fan 12, which is common knowledge of those skilled in the art.
The top of the reforming chamber 5 is connected with an emergency explosion venting valve through a pipeline for emergency discharge, and the waste gas is discharged to a chimney 13.
The treated product comprised ash and flue gas, and the exit gas parameters are shown in table 1.
TABLE 1 flue gas composition Table
Claims (6)
1. The utility model provides a high concentration organic waste liquid plasma schizolysis recombination system, includes plasma torch (2), schizolysis district (3) and reformer chamber (5), its characterized in that: the cracking zone (3) is positioned at the lower end of one side of the reforming chamber (5), the end part of the cracking zone (3) is connected with the plasma torch (2), and one side of the reforming chamber (5) is sequentially provided with the quench tower (7) and the alkaline tower through pipelines.
2. The high-concentration organic waste liquid plasma cracking recombination system of claim 1, wherein: the alkali washing tower is connected with a demister (10), and the demister (10) is connected with a chimney (13) through an induced draft fan (12).
3. The high-concentration organic waste liquid plasma cracking recombination system of claim 1, wherein: the alkaline washing tower comprises a primary alkaline washing tower (8) and a secondary alkaline washing tower (9).
4. The high-concentration organic waste liquid plasma cracking recombination system of claim 3, wherein: and a lye tank (11) is arranged below the primary alkali washing tower (8) and the secondary alkali washing tower (9).
5. The high-concentration organic waste liquid plasma cracking recombination system of claim 1, wherein: the top of the reforming chamber (5) is connected with an emergency explosion venting valve (14) through a pipeline, and the emergency explosion venting valve (14) is connected with a chimney (13) through a pipeline.
6. The high-concentration organic waste liquid plasma cracking recombination system of claim 1, wherein: an ash collector (4) is arranged at the bottom of the reforming chamber (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922164275.XU CN212157189U (en) | 2019-12-05 | 2019-12-05 | High concentration organic waste liquid plasma schizolysis recombination system |
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| CN201922164275.XU CN212157189U (en) | 2019-12-05 | 2019-12-05 | High concentration organic waste liquid plasma schizolysis recombination system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923382A (en) * | 2019-12-05 | 2021-06-08 | 核工业西南物理研究院 | High-concentration organic waste liquid plasma cracking recombination system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923382A (en) * | 2019-12-05 | 2021-06-08 | 核工业西南物理研究院 | High-concentration organic waste liquid plasma cracking recombination system and method |
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