CN112629015A - Plasma hot blast stove and gas circulation recovery device based on same - Google Patents
Plasma hot blast stove and gas circulation recovery device based on same Download PDFInfo
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- CN112629015A CN112629015A CN202110008537.2A CN202110008537A CN112629015A CN 112629015 A CN112629015 A CN 112629015A CN 202110008537 A CN202110008537 A CN 202110008537A CN 112629015 A CN112629015 A CN 112629015A
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- plasma
- gas
- hot blast
- blast stove
- gas circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
Abstract
The invention belongs to the technical field of heating equipment, and relates to a plasma hot blast stove and a gas circulation recovery device based on the plasma hot blast stove, wherein the plasma hot blast stove comprises a stove body and a plasma generator arranged on a stove body shell; the plasma generator is communicated with the inner cavity of the furnace body, and the furnace body is provided with a temperature-adjusting gas source inlet and a hot air gas outlet; the plasma generator is provided with a starting gas source inlet communicated with the inner cavity of the furnace body; the starting gas source inlet is communicated with a desalination starting gas source pipeline; the gas circulation recovery device based on the plasma hot blast stove comprises the plasma hot blast stove and an industrial kiln; the industrial kiln is connected with the hot air outlet, and is connected with the temperature-adjusting air source inlet and the starting air source inlet through the cooling and purifying device. The device has the advantages of high thermal power, high output temperature, wide gas source selection range and production cost reduction; the gas content of the production system is high, and the recovery value is high; the temperature of the heat source is controllable, the gas is recycled, and resources are saved.
Description
Technical Field
The invention belongs to the technical field of heating equipment, and relates to a plasma hot blast stove and a gas circulation recovery device based on the plasma hot blast stove.
Background
Hot blast stove is a heat power machine, and is widely used in China in the end of the 20 th century 70 years, and has become a replacement product for electric air sources and traditional steam power air sources in many industries. The hot blast stove has various types and complete series, and is divided into a hand-burning furnace and a machine-burning furnace by a coal feeding mode, and is divided into a coal furnace, an oil furnace, a gas furnace and the like by fuel types.
The existing hot blast stove has the following problems: (1) the method has the advantages that high temperature is generated, a large amount of fuel is needed or a plurality of power devices are passed, and the defects of energy waste, excessive accessory devices, complex process and the like are caused; (2) the existing hot blast stove fuel has lower power and temperature for the requirement of higher-temperature drying or baking operation; meanwhile, most of the fuels of the existing hot blast stove are coal, oil and the like, so that the high-temperature gas source consumption is high, the production cost is high, the components of the generated process gas are complex, the treatment difficulty is high, the content is low, and the recovery and the utilization are difficult; (3) during actual production, reaction temperatures of different time periods or different procedures may change, and the regulation and control of the output temperature of the hot blast stove are difficult to control; (4) the existing gas furnace has large limitation on gas and small selection of gas source.
Disclosure of Invention
Aiming at the technical problems of the existing hot blast stove in the background technology, the invention provides the plasma hot blast stove which has the advantages of high thermal power, high output temperature, wide gas source selection range and production cost reduction; and the gas circulation recovery device based on the plasma hot blast stove can realize the regulation and control of the temperature of a heat source, has high gas content, is easy to circulate or recover, and saves resources.
In order to achieve the purpose, the invention adopts the technical scheme that:
a plasma hot blast stove comprises a stove body and a plasma generator arranged on a stove body shell; the plasma generator is communicated with the inner cavity of the furnace body, and the furnace body is respectively provided with a temperature-adjusting gas source inlet and a hot air gas outlet.
Further, a starting gas source inlet is arranged on the plasma generator; the starting gas source inlet is communicated with the inner cavity of the furnace body.
Furthermore, the plasma hot blast stove also comprises a starting air source pipeline communicated with the starting air source inlet.
Further, the starting gas source pipeline is externally connected with one or more of a nitrogen gas circuit, an argon gas circuit, a hydrogen gas circuit, a carbon monoxide gas circuit, a carbon dioxide gas circuit, a sulfur dioxide gas circuit, a hydrogen chloride gas circuit, a hydrogen sulfide gas circuit, a water vapor gas circuit, a methane gas circuit, a pyrolysis tail gas circuit, a dry distillation tail gas circuit and a cracking tail gas circuit.
Further, the number of the plasma generators is one or more.
Furthermore, when a plurality of plasma generators are arranged, the plurality of plasma generators are uniformly distributed on the furnace body shell.
A gas circulation recovery device based on a plasma hot blast stove comprises the plasma hot blast stove and an industrial kiln; the industrial kiln is communicated with the hot air outlet.
Further, the gas circulation recovery device based on the plasma hot blast stove also comprises a cooling and purifying device; the industrial kiln is respectively connected with the temperature-adjusting air source inlet and the starting air source inlet through the cooling and purifying device.
Further, the gas circulation recovery device based on the plasma hot blast stove further comprises a first control regulating valve arranged between the cooling and purifying device and the starting gas source inlet.
Further, the gas circulation recovery device based on the plasma hot blast stove further comprises a second control regulating valve arranged between the cooling and purifying device and the inlet of the temperature-regulating gas source.
The invention has the beneficial effects that:
1. the plasma generator comprises a furnace body and a plasma generator arranged on a shell of the furnace body; the plasma generator is communicated with the inner cavity of the furnace body, and the furnace body is respectively provided with a temperature-adjusting gas source inlet and a hot air gas outlet. The number of the plasma generators is one or more. When the number of the plasma generators is multiple, the multiple plasma generators are longitudinally distributed on the furnace body shell along the axial direction of the furnace body or are distributed on the furnace body shell along the radial circumference of the furnace body. The plasma generator outputs gas in a hot air mode to provide heat, the output temperature can reach 4000-5000 ℃, and the requirement for high temperature in production is met.
2. The plasma hot blast stove provided by the invention further comprises a starting gas source pipeline communicated with the starting gas source inlet. The starting gas source pipeline is externally connected with one or more of a nitrogen gas circuit, an argon gas circuit, a hydrogen gas circuit, a carbon monoxide gas circuit, a carbon dioxide gas circuit, a sulfur dioxide gas circuit, a hydrogen chloride gas circuit, a hydrogen sulfide gas circuit, a water vapor gas circuit, a methane gas circuit, a pyrolysis tail gas circuit, a dry distillation tail gas circuit and a cracking tail gas circuit. The gas source has many kinds of selection and low consumption, the starting gas source of the invention is the same as the reaction gas of the heated material, no other impurity gas exists in the reaction system, the reaction gas content is high, and the invention has recovery value.
3. The invention provides a gas circulation recovery device based on a plasma hot blast stove, which comprises the plasma hot blast stove and an industrial kiln; the industrial kiln is communicated with the hot air outlet; the gas circulation recovery device based on the plasma hot blast stove also comprises a cooling and purifying device; the industrial kiln is respectively connected with the temperature-adjusting air source inlet and the starting air source inlet through the cooling and purifying device. The first control regulating valve is arranged between the cooling and purifying device and the starting air source inlet; the device also comprises a second control regulating valve arranged between the cooling and purifying device and the inlet of the temperature-regulating air source. The hot air generated by the plasma hot air furnace is used for the industrial kiln, and the tail gas generated by a production system after passing through the industrial kiln has high gas content and has recovery value; meanwhile, tail gas of the systems can be returned to be used as a starting gas source after being cooled and purified, so that the resource reutilization is realized, the purposes of energy conservation and emission reduction are achieved, and the production cost is reduced; the gas can be returned to the furnace body to be used as a temperature regulating function, and the gas temperature in the furnace body can be regulated and controlled according to the actual requirement of the production process; the application is flexible and convenient.
Drawings
FIG. 1 is a schematic structural diagram of a plasma hot blast stove provided by the invention;
FIG. 2 is a schematic view of a gas recycling device of a plasma-based hot blast stove provided by the invention;
wherein:
1, a furnace body; 2-a plasma generator; 3-starting an air source inlet; 4-cooling and purifying device; 5-temperature regulating gas source inlet; 6-hot air outlet; 7-industrial kiln; 8-first control regulating valve; 9-second control regulating valve.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1, the plasma hot blast stove provided by the embodiment comprises a stove body 1 and a plasma generator 2 arranged on the outer shell of the stove body 1; the plasma generator 2 is communicated with the inner cavity of the furnace body, and the furnace body 1 is respectively provided with a temperature-adjusting gas source inlet 5 and a hot air gas outlet 6. An insulating layer and a fire-resistant layer are laid inside the furnace body 1.
In this embodiment, the number of the plasma generators 2 is 3, and the plasma generators are axially and uniformly distributed on the outer shell of the furnace body 2. One end of the plasma generator 2 is arranged in the furnace body 1 and communicated with the inner cavity of the furnace body 1, the other end of the plasma generator 2 is arranged outside the furnace body 1 and is respectively provided with a starting air source inlet 3, the starting air source inlet 3 is communicated with the inside of the furnace body 1, and the plasma generator 2 is also connected with an external power supply.
In this embodiment, the starting air source inlet 3 is communicated with the starting air source pipeline. .
In this embodiment, the starting gas source pipeline is communicated with the nitrogen gas path.
In this embodiment, the starting gas source pipeline can be replaced by an argon gas circuit, a hydrogen gas circuit, a carbon monoxide gas circuit, a carbon dioxide gas circuit, a sulfur dioxide gas circuit, a hydrogen chloride gas circuit, a hydrogen sulfide gas circuit, a water vapor gas circuit, a methane gas circuit, a pyrolysis tail gas circuit, a dry distillation tail gas circuit or a cracking tail gas circuit; or any mixture of the above.
The working process of the plasma hot blast stove provided by the embodiment is as follows: the external power supply is turned on, the plasma generator 2 is started to work, nitrogen in a nitrogen gas circuit enters the furnace body 1 from the starting gas source inlet 3 through the plasma generator 2, the nitrogen forms hot air under the plasma action of the plasma generator 2 and is discharged out of the furnace body 1 from the hot air outlet 6, the temperature of the output hot air can reach 3000 ℃, the nitrogen can be used as thermal power to provide a high-temperature atmosphere required by reaction for a production system, the temperature is high, the power is high, the device is suitable for occasions requiring high temperature, and electricity is adopted for heating, so that the pollution caused by existing coal and petroleum as thermal energy is solved, the energy consumption is reduced, and the cost is saved. The gas variety is more, and the selection range is wide, and the air supply can be selected according to production system's needs, and the standard of selection generally is that the air supply is unanimous with production system production or the gas that needs participate in the system reaction, like this, avoids introducing other air supplies and influences production system's stable going on.
Example 2
Referring to fig. 2, the plasma hot blast stove and the industrial kiln 7 of the gas circulation recovery device based on the plasma hot blast stove provided by the embodiment are provided with an industrial kiln 7 communicated with a hot blast gas outlet 6.
In this embodiment, the gas circulation recovery device based on the plasma hot blast stove further comprises a cooling and purifying device 4; the industrial kiln 7 is respectively connected with the temperature-adjusting gas source inlet 5 and the starting gas source inlet 3 through the cooling and purifying device 4. A control regulating valve 8 is also arranged between the cooling and purifying device 4 and the starting air source inlet 3. And a second control regulating valve 9 is also arranged between the cooling and purifying device 4 and the temperature-regulating air source inlet 5.
In the embodiment, the hot air gas formed after the action of the plasma generator 2 is discharged from the furnace body 1 from the hot air gas outlet 6 and directly enters the industrial kiln 7 to provide heat for the production system, and the tail gas is discharged from the terminal of the industrial kiln 7; in addition, if the temperature of the production system changes, for example, when the reaction temperature is reduced, the second regulating valve 9 can be controlled to enable the tail gas to enter the furnace body 1 from the temperature-regulating gas source inlet 5 after passing through the cooling and purifying device 4, so that the temperature in the furnace body 1 can be regulated, and the flexibility is good; or as the starting air source of the plasma generator 2, the hot air is generated by controlling the first regulating control valve 8 to return to the plasma hot air furnace, so that the resource waste is avoided, the tail gas is recycled, and the energy conservation and consumption reduction are realized.
Claims (10)
1. A plasma hot blast stove is characterized in that: the plasma hot blast stove comprises a stove body (1) and a plasma generator (2) arranged on the shell of the stove body (1); the plasma generator (2) is communicated with an inner cavity of the furnace body (1), and the furnace body (1) is respectively provided with a temperature-adjusting gas source inlet (5) and a hot air gas outlet (6).
2. The plasma hot blast stove according to claim 1, characterized in that: a starting gas source inlet (3) is arranged on the plasma generator (2); the starting air source inlet (3) is communicated with the inner cavity of the furnace body (1).
3. The plasma stove of claim 2, wherein: the plasma hot blast stove also comprises a starting gas source pipeline communicated with the starting gas source inlet (3).
4. The plasma hot blast stove according to claim 3, characterized in that: the starting gas source pipeline is externally connected with one or more of a nitrogen gas circuit, an argon gas circuit, a hydrogen gas circuit, a carbon monoxide gas circuit, a carbon dioxide gas circuit, a sulfur dioxide gas circuit, a hydrogen chloride gas circuit, a hydrogen sulfide gas circuit, a water vapor gas circuit, a methane gas circuit, a pyrolysis tail gas circuit, a dry distillation tail gas circuit and a cracking tail gas circuit.
5. The plasma stove according to any one of claims 1 to 4, characterized in that: the number of the plasma generators (2) is one or more.
6. The plasma hot blast stove according to claim 5, characterized in that: when a plurality of plasma generators (2) are arranged, the plurality of plasma generators (2) are uniformly distributed on the shell of the furnace body (2).
7. The utility model provides a gaseous circulation recovery unit based on plasma hot-blast furnace which characterized in that: the plasma-based hot blast stove gas recycling device comprises the plasma hot blast stove according to claim 6 and an industrial kiln (7); the industrial kiln (7) is communicated with the hot air outlet (6).
8. The plasma-based hot blast stove gas recycling device according to claim 7, characterized in that: the gas circulation recovery device based on the plasma hot blast stove also comprises a cooling and purifying device (4); the industrial kiln (7) is respectively connected with the temperature-adjusting air source inlet (5) and the starting air source inlet (3) through the cooling and purifying device (4).
9. The plasma-based hot blast stove gas recycling device according to claim 7, characterized in that: the gas circulation recovery device based on the plasma hot blast stove further comprises a first control regulating valve (8) arranged between the cooling and purifying device (4) and the starting gas source inlet (3).
10. The plasma-based hot blast stove gas recycling device according to claim 8, characterized in that: the gas circulation recovery device based on the plasma hot blast stove further comprises a second control regulating valve (9) arranged between the cooling and purifying device (4) and the temperature-regulating gas source inlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008537.2A CN112629015A (en) | 2021-01-05 | 2021-01-05 | Plasma hot blast stove and gas circulation recovery device based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008537.2A CN112629015A (en) | 2021-01-05 | 2021-01-05 | Plasma hot blast stove and gas circulation recovery device based on same |
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| Publication Number | Publication Date |
|---|---|
| CN112629015A true CN112629015A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110008537.2A Pending CN112629015A (en) | 2021-01-05 | 2021-01-05 | Plasma hot blast stove and gas circulation recovery device based on same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865084A (en) * | 2021-08-24 | 2021-12-31 | 陕西翼飞航智能科技有限公司 | Gas heating method and heating device |
| CN114525400A (en) * | 2021-12-31 | 2022-05-24 | 陕西聚能新创煤化科技有限公司 | Ore decomposition production method and system by using novel plasma hot blast stove |
-
2021
- 2021-01-05 CN CN202110008537.2A patent/CN112629015A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865084A (en) * | 2021-08-24 | 2021-12-31 | 陕西翼飞航智能科技有限公司 | Gas heating method and heating device |
| CN114525400A (en) * | 2021-12-31 | 2022-05-24 | 陕西聚能新创煤化科技有限公司 | Ore decomposition production method and system by using novel plasma hot blast stove |
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