CN117720938A - Organic waste carbonization combustion integrated device - Google Patents
Organic waste carbonization combustion integrated device Download PDFInfo
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- CN117720938A CN117720938A CN202311858681.0A CN202311858681A CN117720938A CN 117720938 A CN117720938 A CN 117720938A CN 202311858681 A CN202311858681 A CN 202311858681A CN 117720938 A CN117720938 A CN 117720938A
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- carbonization
- carbonizing
- biochar
- organic waste
- furnace
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- 238000003763 carbonization Methods 0.000 title claims abstract description 165
- 239000010815 organic waste Substances 0.000 title claims abstract description 75
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000005416 organic matter Substances 0.000 claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 39
- 238000010000 carbonizing Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000011368 organic material Substances 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 239000003870 refractory metal Substances 0.000 claims 1
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- -1 electricity Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses an organic waste carbonization and combustion integrated device. Comprising the following steps: the device comprises a carbonization furnace outer shell, a continuous carbonization bin, an organic matter feeding hole, an organic matter feeder, a biochar discharging hole, a biochar discharging machine, a biochar cooling device, an external combustion engine, a blower and a carbonization furnace smoke and fire ejection hole. According to the organic waste carbonization and combustion integrated device, carbonization of the organic waste and combustion of the carbonized gas are carried out in the same carbonization furnace outer shell, and the combustion of the carbonized gas provides heat for carbonization of the organic waste substances, so that stable carbonization temperature is ensured, energy conversion efficiency is increased, tar and dioxin are avoided, meanwhile, high-added-value biochar is produced, disposal cost of the organic waste is greatly reduced, and the novel clean energy is comprehensively utilized.
Description
Technical Field
The invention belongs to the technical field of comprehensive utilization of heat energy of organic wastes, and particularly relates to an organic waste carbonization and combustion integrated device.
Background
The combustion of organic matters is a severe oxidation reaction of the organic matters under the aerobic condition and at high temperature, and is commonly used for providing heat energy and incinerating organic wastes such as coal, fuel oil power generation and garbage incineration, but the organic wastes often contain various impurities, and the oxides generated by the combustion seriously pollute the atmospheric environment such as sulfur dioxide, nitrogen oxides, dioxin, fly ash and the like.
In order to solve the problems, various gasifiers are invented, the organic waste gasification is to crack and gasify the organic matters in an anoxic environment, and the cracking gas is burned again to generate heat energy, so that the amount of smoke and pollutant emission are effectively reduced, but the organic matters also have to be directly burned at the lower part (or the front part) of the gasifiers to provide heat energy required by gasification reaction due to a certain temperature required by gasification, and some pollutants are inevitably generated in the gasification process, and a large amount of tar and carbon monoxide are generated due to incomplete cracking, such as incorrect treatment, and environmental pollution is also caused.
The carbonization of organic waste refers to the process that the organic waste is subjected to a pyrolysis reaction at high temperature under the anaerobic condition, macromolecules are cracked into small molecules, a part of organic matters are converted into carbonized gas mainly comprising alkane, and residual inorganic matters and a part of organic matters are converted into inorganic carbon. The reduction of the organic waste is remarkable in the carbonization process, dioxin is not generated in the process, organic pollutant residues are thoroughly eliminated, heavy metals are stabilized, the smoke amount is small, the investment is low, and the method is a preferred process for disposing the organic waste in recent years.
However, because the carbonization of organic waste requires a higher heating temperature, the existing carbonization process and equipment for organic waste have heavy waste disposal, light heat recovery and low heat efficiency, and can not efficiently and comprehensively utilize the heat energy in the organic waste as an important source for supplying clean energy.
Disclosure of Invention
In order to solve the technical problems, the invention provides the carbonization and combustion integrated device for the organic waste, which effectively improves the heat energy utilization efficiency of the organic waste, so that the organic waste is carbonized to become a clean energy source, and the byproduct of the biochar with high added value can be produced.
The invention provides an organic waste carbonization and combustion integrated device, which comprises:
the carbonization furnace outer shell is used for carrying out adiabatic combustion on carbonized gas generated by carbonization of organic wastes, so as to provide heat energy for carbonization of the organic wastes and keep the temperature required by carbonization stable;
the continuous carbonization bin is positioned in the outer shell of the carbonization furnace and is used for carbonizing organic matters to generate biochar and organic matter carbonization gas;
the organic matter feed inlet is positioned at the top of the continuous carbonization bin and is used for feeding organic waste into the carbonization bin for carbonization;
the organic matter feeder is positioned outside the carbonization furnace shell and connected with the organic matter feed inlet;
the biochar discharge port is positioned at the lower part of the continuous carbonization bin and is used for enabling biochar generated by carbonizing organic wastes to enter the biochar discharge machine;
the biochar discharging machine is connected below the biochar discharging hole and is used for conveying the biochar generated by carbonizing the organic waste out of the carbonization furnace;
the biochar cooling device is positioned outside the carbonization furnace shell and connected with a biochar discharging machine for cooling the biochar;
the external furnace burner is connected to the outside of the carbonization furnace shell and used for increasing the temperature to a set carbonization temperature when the carbonization furnace is ignited;
the air blower is used for feeding combustion-supporting gas into the outer shell of the carbonization furnace so as to burn carbonized gas generated by carbonizing organic wastes, and provides heat energy for the carbonization process, so that carbonization reaction is continuously carried out;
and the smoke and fire ejection port of the carbonization furnace is used for ejecting smoke and fire burnt by the carbonization gas in the outer shell of the carbonization furnace out of the furnace.
Further, the carbonization furnace outer shell is a sealed fixed box body, and is lined with fireproof heat-insulating materials.
Further, the continuous carbonization bin is a high-temperature-resistant metal box body arranged in the carbonization furnace outer shell, a plurality of carbonization gas overflow holes are formed in the top surface and the vertical side surface of the box body, water vapor and carbonization gas used for drying organic wastes overflow, and the carbonization gas is combusted in the carbonization furnace outer shell.
Further, a plurality of carbonization bin flue gas channels are arranged in the continuous carbonization bin, and the carbonization bin flue gas channels are communicated with the outer shell of the carbonization furnace and are used for heating organic matters in the continuous carbonization bin, so that carbonization effect is improved.
Further, the organic material feeding port is positioned at the top of the continuous carbonization bin and penetrates through the carbonization furnace outer shell to be connected with the organic material feeder.
Further, the biochar discharging machine is positioned at the bottom of the carbonization bin and is connected with a power device and a speed regulating device, and the discharging speed of the biochar can be controlled by utilizing the speed regulating device, so that the carbonization degree of organic wastes is controlled.
Further, the cooling mode of the biochar cooling device can be air cooling, water cooling or other cooling modes.
Further, the firework ejection port of the carbonization furnace is connected with the outer shell of the carbonization furnace, and is externally connected with heat energy utilization equipment.
Compared with the prior art, the invention has the following beneficial effects:
(1) The carbonization of the organic waste and the combustion of the carbonization gas are carried out in the same carbonization furnace outer shell, and the combustion of the carbonization gas provides heat for the carbonization of the organic waste substances, so that the stable carbonization temperature is ensured, and the carbonization of the organic waste can continuously and stably run under the condition of self energy supply.
(2) The carbonization of the organic waste and the combustion of the carbonized gas are carried out in the same carbonization furnace outer shell, so that the combustion space and the combustion efficiency are greatly increased, the efficient conduction of heat energy is realized, the heat loss is reduced, and the carbonization process is accelerated.
And (3) the organic waste carbonized gas is directly combusted in the outer shell of the carbonization furnace, so that the problem that the carbonized gas is cooled to generate tar and further the pipeline is blocked and the tar is difficult to treat due to the fact that the carbonized gas is led out of the pipeline is avoided.
(4) The carbonization combustion device for the organic waste is used for producing biochar with high added value while disposing the organic waste, thereby greatly reducing the disposal cost of the organic waste.
(5) The carbonization amount and the carbonization gas generation amount of the organic waste can be conveniently adjusted by adjusting the discharging speed of the biochar discharging machine, so that the heat energy supply amount of the organic waste carbonization combustion device is adjusted, and the device is suitable for various industrial or civil heat energy supply equipment (boilers, kilns and the like).
(6) The carbonization combustion device for the organic waste is suitable for the treatment of various organic wastes, such as waste paper, waste plastic, waste rubber, organic industrial solid waste, household garbage and the like, does not generate harmful substances such as dioxin, tar and the like, can convert the organic waste into energy, and greatly reduces the operating cost of heat energy demand enterprises compared with the traditional energy sources such as coal, electricity, gas, biomass and the like.
Drawings
The following drawings are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and their description to explain the principles of the invention.
Fig. 1 is a schematic structural view of an organic waste carbonization and combustion integrated device according to an embodiment of the present invention.
Reference numerals:
1. carbonization furnace outer shell 2 and continuous carbonization bin
2-1, carbonization gas overflow hole 3 and organic matter feed inlet
4. Organic matter feeder 5 and carbonization bin flue gas channel
6. Biochar discharge gate 7, biochar discharge machine
8. Biochar cooling device 9 and off-furnace burner
10. Smoke and fire ejection port of blower 11 and carbonization furnace
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Aiming at the problems of the prior art that the carbonization of organic waste needs an external heat source, consumes a large amount of heat, has low comprehensive utilization efficiency of heat energy of the organic waste, has high operation cost of the carbonization of the organic waste and the like, the invention provides a carbonization combustion device of the organic waste, which is shown in figure 1 and comprises:
the carbonization furnace comprises a carbonization furnace outer shell 1, wherein the carbonization furnace outer shell 1 is used for carrying out adiabatic combustion on carbonized gas generated by carbonization of organic wastes, so as to provide heat energy for carbonization of the organic wastes and keep the temperature required by carbonization stable;
the continuous carbonization bin 2 is positioned in the carbonization furnace outer shell 1 and is used for carbonizing organic matters to generate biochar and organic matter carbonized gas;
the organic matter feed port 3 is positioned at the top of the continuous carbonization bin 2 and is used for feeding organic wastes into the carbonization bin for carbonization;
the organic matter feeder 4 is positioned on the top of the carbonization furnace outer shell 1 and is connected with the organic matter feed inlet 3;
the biochar discharging port 6 is positioned at the lower part of the continuous carbonization bin 2 and is used for enabling biochar generated by carbonizing organic wastes to enter the biochar discharging machine 7;
the biochar discharging machine 7 is connected below the biochar discharging hole 6 and is used for conveying the biochar generated by carbonizing the organic waste out of the carbonization furnace;
the biochar cooler 8 is positioned outside the carbonization furnace outer shell 1 and connected with the biochar discharging machine 7 for cooling the biochar;
an external burner 9, wherein the external burner 9 is connected to the outer side surface of the carbonization furnace shell 1 and is used for increasing the temperature to a set carbonization temperature when the carbonization furnace is ignited;
the air blower 10 is used for feeding combustion-supporting gas into the carbonization furnace outer shell 1 so as to burn carbonized gas generated by carbonizing organic wastes, and provides heat energy for the carbonization process, so that carbonization reaction is continuously carried out;
and a carbonization furnace smoke and fire ejection port 11 for ejecting smoke and fire burning carbonization gas in the carbonization furnace outer shell 1 out of the furnace.
The carbonization furnace outer shell 1 is a sealed fixed box body and is lined with fireproof heat-insulating materials.
The continuous carbonization bin 2 is a high-temperature-resistant metal box body arranged in the carbonization furnace outer shell 1, a plurality of carbonization gas overflow holes 2-1 are formed in the top surface and the vertical side surface of the box body, water vapor and carbonization gas used for drying organic wastes overflow, and the carbonization gas is combusted in the carbonization furnace outer shell 1.
A plurality of carbonization bin flue gas channels 5 are arranged in the continuous carbonization bin 2, and the carbonization bin flue gas channels 5 are communicated with the carbonization furnace shell body 1 and are used for heating organic matters in the continuous carbonization bin 2, so that carbonization effect is improved.
The organic material feeding port 3 is positioned at the top of the continuous carbonization bin and penetrates through the carbonization furnace outer shell 1 to be connected with the organic material feeder 4.
The biochar discharging machine 7 is positioned at the bottom of the carbonization bin and is connected with a power device and a speed regulating device, and the discharging speed of the biochar can be controlled by utilizing the speed regulating device, so that the carbonization degree of organic wastes is controlled.
The biochar cooling device 8 can adopt air cooling, water cooling or other cooling modes.
The carbonization furnace smoke and fire ejection port 11 is connected with the carbonization furnace outer shell 1 and is externally connected with heat energy utilization equipment.
Working principle: after the temperature in the carbonization furnace outer shell 1 is gradually heated to 650-800 ℃ by using an external furnace burner 9, the pretreated (crushed and dried) organic waste with a certain heat value is added into a continuous carbonization bin 2 by using an organic material feeder 4 through an organic material feeding hole 3, and under the condition of high temperature of absolute oxygen, organic matters in the organic waste are subjected to cracking reaction, and macromolecules are cracked into micromolecules, so that carbonized gas mainly comprising methane, ethane, propane, ethylene, carbon monoxide and a small amount of water vapor and biochar mainly comprising inorganic carbon and silicon dioxide are finally formed.
The carbonized gas overflowed from the upper and side carbonization gas overflow holes 2-1 of the continuous carbonization bin 2 is fully combusted in the carbonization furnace outer shell 1 at high temperature in the combustion-supporting gas environment fed by the blower 10, the heat energy generated by combustion ensures the temperature required by carbonization reaction, and the residual heat energy is output to heat energy demand equipment (a boiler or kiln, a dryer and the like) through the carbonization furnace smoke ejection hole 11.
The organic matters in the continuous carbonization bin 2 are continuously discharged along with the biochar discharging machine 7, flow from top to bottom, gradually rise in temperature, finish the drying, cracking and carbonization processes, and the biochar formed after carbonization is moved out of the carbonization furnace outer shell 1 through the biochar discharging hole 6 by the biochar discharging machine 7 and then cooled by the biochar cooling device 8 to obtain a biochar finished product.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. An organic waste carbonization combustion integrated device, characterized by comprising:
the carbonization furnace outer shell is used for carrying out adiabatic combustion on carbonized gas generated by carbonization of organic wastes, so as to provide heat energy for carbonization of the organic wastes and keep the temperature required by carbonization stable;
the continuous carbonization bin is positioned in the outer shell of the carbonization furnace and is used for carbonizing organic matters to generate biochar and organic matter carbonization gas;
the organic matter feed inlet is positioned at the top of the continuous carbonization bin and is used for feeding organic waste into the carbonization bin for carbonization;
the organic matter feeder is positioned outside the carbonization furnace shell and connected with the organic matter feed inlet;
the biochar discharge port is positioned at the lower part of the continuous carbonization bin and is used for enabling biochar generated by carbonizing organic wastes to enter the biochar discharge machine;
the biochar discharging machine is connected below the biochar discharging hole and is used for conveying the biochar generated by carbonizing the organic waste out of the carbonization furnace;
the biochar cooling device is positioned outside the carbonization furnace shell and connected with a biochar discharging machine for cooling the biochar;
the external furnace burner is connected to the outside of the carbonization furnace shell and used for increasing the temperature to a set carbonization temperature when the carbonization furnace is ignited;
the air blower is used for feeding combustion-supporting gas into the outer shell of the carbonization furnace so as to burn carbonized gas generated by carbonizing organic wastes, and provides heat energy for the carbonization process, so that carbonization reaction is continuously carried out;
and the smoke and fire ejection port of the carbonization furnace is used for ejecting smoke and fire burnt by the carbonization gas in the outer shell of the carbonization furnace out of the furnace.
2. The integrated device for carbonizing and burning organic waste as set forth in claim 1, wherein the outer shell of the carbonizing furnace is a sealed fixed box body lined with fireproof heat-insulating material.
3. The integrated device for carbonizing and burning organic waste as set forth in claim 1, wherein the continuous carbonizing bin is a refractory metal box installed inside the carbonizing furnace casing, and a plurality of carbonizing gas overflow holes are opened on the top surface and vertical side surface of the box for overflowing the water vapor and carbonizing gas for drying the organic waste, and the carbonizing gas burns inside the carbonizing furnace casing.
4. The integrated device for carbonizing and burning organic waste as set forth in claim 1, wherein a plurality of carbonizing bin flue gas channels are provided in the continuous carbonizing bin, and the carbonizing bin flue gas channels are communicated with the outer shell of the carbonizing furnace for heating the organic matters in the continuous carbonizing bin, so as to improve carbonizing effect.
5. The integrated device for carbonizing and burning organic waste as set forth in claim 1, wherein the organic material inlet is located at the top of the continuous carbonization bin and is connected with the organic material feeder through the carbonization furnace outer shell.
6. The integrated device for carbonizing and burning organic waste as set forth in claim 1, wherein the biochar discharging machine is located at the bottom of the carbonizing bin, and is connected with a power device and a speed regulating device, and the speed regulating device can be used for controlling the discharging speed of the biochar, thereby controlling the carbonizing degree of the organic waste.
7. The integrated device for carbonizing and burning organic waste as set forth in claim 1, wherein the biochar cooling means may be air cooling, water cooling or other cooling means.
8. The integrated device for carbonizing and burning organic waste according to claim 1, wherein the firework ejection port of the carbonizing furnace is connected with the outer shell of the carbonizing furnace, and is externally connected with a heat energy utilization device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311858681.0A CN117720938A (en) | 2023-12-30 | 2023-12-30 | Organic waste carbonization combustion integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311858681.0A CN117720938A (en) | 2023-12-30 | 2023-12-30 | Organic waste carbonization combustion integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117720938A true CN117720938A (en) | 2024-03-19 |
Family
ID=90201657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311858681.0A Pending CN117720938A (en) | 2023-12-30 | 2023-12-30 | Organic waste carbonization combustion integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117720938A (en) |
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2023
- 2023-12-30 CN CN202311858681.0A patent/CN117720938A/en active Pending
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