CN212456865U - Plasma melting reduction treatment system for fly ash generated by incineration - Google Patents
Plasma melting reduction treatment system for fly ash generated by incineration Download PDFInfo
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- CN212456865U CN212456865U CN202021000801.5U CN202021000801U CN212456865U CN 212456865 U CN212456865 U CN 212456865U CN 202021000801 U CN202021000801 U CN 202021000801U CN 212456865 U CN212456865 U CN 212456865U
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Abstract
The utility model discloses a fly ash plasma melting reduction processing system who burns production. The technical scheme of the utility model is that: the plasma melting and reduction treatment system for the fly ash generated by incineration comprises a furnace body, wherein a plasma spray pipe which is inserted into the furnace body and can throw plasma into the furnace body is arranged on the furnace body, a negative electrode is arranged at the bottom of the furnace body and is connected with the plasma spray pipe through power supply equipment, a filter plate is arranged in the furnace body, a fly ash feeding port is formed in the furnace body, and a slag and gas outlet is formed in one side of the furnace body. The utility model provides a scheme is from plasma spray tube release plasma gas, carries out melting decrement to burning flying ash with the heat of the plasma flame who produces.
Description
Technical Field
The utility model relates to a refuse treatment technical field, in particular to fly ash plasma melting minimizing treatment system who burns production.
Background
The incineration fly ash is generated in the incineration process of municipal domestic waste, and organic matters in the waste are mainly discharged in the form of gaseous substances in the incineration process of the waste; whereas inorganic substances form mainly solid particles. In the municipal domestic waste incineration process, the volume of the generated total ash can reach 4-5% of the total volume of the waste, the total mass of the ash can reach 15-20% of the total mass of the waste, and the quantity of the fly ash can reach 10-20% of the total mass of the ash. At present, the disposal of incineration fly ash is mainly to carry out landfill disposal in a hazardous waste landfill after being treated by utilizing an immobilization technology or a stabilization technology; or the incineration fly ash is simply treated on site and then sent to a safe landfill site for safe landfill treatment, but the construction and operation cost of the safe landfill site is extremely high, so that the garbage incineration plant is difficult to bear.
SUMMERY OF THE UTILITY MODEL
To the deficiencies of the prior art, the main object of the present invention is to provide a system for melting and reducing fly ash effectively.
In order to achieve the above purpose, the utility model provides a following technical scheme: the plasma melting and reduction treatment system for the fly ash generated by incineration comprises a furnace body, wherein a plasma spray pipe which is inserted into the furnace body and can throw plasma into the furnace body is arranged on the furnace body, a negative electrode is arranged at the bottom of the furnace body and is connected with the plasma spray pipe through power supply equipment, a filter plate is arranged in the furnace body, a fly ash feeding port is formed in the furnace body, and a slag and gas outlet is formed in one side of the furnace body.
Preferably, the bottom of the furnace body is provided with a granular molten slag outlet, and the discharge port comprises an exhaust port and a sand granular molten slag outlet arranged at one end of the filter plate.
Preferably, a cooling device is connected to the plasma torch.
Preferably, the cooling device is a water cooling circulation device.
Compared with the prior art, the utility model has the advantages that the plasma spray tube in the furnace body and the negative electrode that sets up at the bottom of the furnace body are impressed from the furnace body top, make its arc discharge. At the same time, plasma gas is discharged from the plasma torch, and the incineration fly ash is melted by the heat of the generated plasma flame. The scheme is characterized in that: the heat conduction is excellent, and the miniaturization of the device can be realized by utilizing a high-density heat source; high-temperature melting at 1300-1550 ℃ can be realized; the burden of a landfill site is reduced after the reduction; the carrier gas such as air plasma, inert gas (N2, Ar) plasma, etc. can be selected, without electrical noise and current pulsation phenomenon, and with less exhaust gas emission.
Drawings
Fig. 1 is a schematic structural diagram of a fly ash plasma melting and reduction treatment system produced by incineration according to the present invention.
In the figure: 1. a furnace body; 2. a plasma torch; 3. a negative electrode; 4. a power supply device; 5. filtering the plate; 6. a fly ash feeding port; 7. a slag and gas discharge port; 8. a granular molten slag outlet; 9. an exhaust gas vent; 10. a sand-like molten slag outlet; 11. a water cooling circulation device.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, a plasma melting and reduction treatment system for fly ash generated by incineration comprises a furnace body 1, wherein a plasma spray pipe 2 which is inserted into the furnace body 1 and can inject plasma into the furnace body 1 is arranged on the furnace body 1, a negative electrode 3 is arranged at the bottom of the furnace body 1, the negative electrode 3 is connected with the plasma spray pipe 2 through a power supply device 4, a filter plate 5 is arranged in the furnace body 1, a fly ash feeding port 6 is arranged on the furnace body 1, and a slag and gas discharge port 7 is arranged at one side of the furnace body 1.
Preferably, the bottom of the furnace body 1 is provided with a granular molten slag outlet 8, and the discharge port includes an exhaust gas port 9 and a sand granular molten slag outlet 10 provided at one end of the filter sheet 5. The molten slag can be collected in different states by providing the filter sheet 5.
Preferably, a cooling device is connected to the plasma torch 2.
Preferably, the cooling device is a water cooling circulation device 11. The cooling device adopts the water cooling circulation device 11 to cool the plasma spray pipe 2 in time, so that the stable and good operation of the plasma spray pipe 2 is kept.
A plasma nozzle 2 penetrating into the furnace body 1 from the top of the furnace body 1 and a negative electrode 3 arranged at the bottom of the furnace body 1 are applied with voltage to make the arc discharge. At the same time, plasma gas is discharged from the plasma torch 2, and the incineration fly ash is melted by the heat of the generated plasma flame. The scheme is characterized in that: the heat conduction is excellent, and the miniaturization of the device can be realized by utilizing a high-density heat source; high-temperature melting at 1300-1550 ℃ can be realized; the burden of a landfill site is reduced after the reduction; the carrier gas such as air plasma, inert gas (N2, Ar) plasma, etc. can be selected, without electrical noise and current pulsation phenomenon, and with less exhaust gas emission.
Before entering the melting equipment, the fly ash needs to be pretreated by a vibrating screen, magnetic separation, drying and the like.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A fly ash plasma melting reduction treatment system that burns production which characterized in that: the furnace body is provided with a plasma spray pipe which is inserted into the furnace body and can throw plasma into the furnace body, the bottom of the furnace body is provided with a negative electrode, the negative electrode is connected with the plasma spray pipe through power supply equipment, a filter plate is arranged in the furnace body, the furnace body is provided with a fly ash feeding port, and one side of the furnace body is provided with a slag and gas outlet.
2. The plasma melting reduction treatment system for fly ash generated by incineration as claimed in claim 1, wherein: the bottom of the furnace body is provided with a granular molten slag outlet, and the discharge port comprises an exhaust port and a sand granular molten slag outlet arranged at one end of the filter plate.
3. The plasma melting reduction treatment system for fly ash generated by incineration as claimed in claim 1, wherein: the plasma spray pipe is connected with a cooling device.
4. The plasma melting reduction treatment system for fly ash generated by incineration as claimed in claim 3, wherein: the cooling device is a water cooling circulation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021000801.5U CN212456865U (en) | 2020-06-04 | 2020-06-04 | Plasma melting reduction treatment system for fly ash generated by incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021000801.5U CN212456865U (en) | 2020-06-04 | 2020-06-04 | Plasma melting reduction treatment system for fly ash generated by incineration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212456865U true CN212456865U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021000801.5U Active CN212456865U (en) | 2020-06-04 | 2020-06-04 | Plasma melting reduction treatment system for fly ash generated by incineration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212456865U (en) |
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2020
- 2020-06-04 CN CN202021000801.5U patent/CN212456865U/en active Active
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