CN218645574U - System for incinerating household garbage by utilizing renewable energy - Google Patents
System for incinerating household garbage by utilizing renewable energy Download PDFInfo
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- CN218645574U CN218645574U CN202221730407.6U CN202221730407U CN218645574U CN 218645574 U CN218645574 U CN 218645574U CN 202221730407 U CN202221730407 U CN 202221730407U CN 218645574 U CN218645574 U CN 218645574U
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 32
- 238000010248 power generation Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 47
- 239000003546 flue gas Substances 0.000 claims description 46
- 238000002485 combustion reaction Methods 0.000 claims description 37
- 239000002918 waste heat Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 15
- 239000002699 waste material Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000003472 neutralizing effect Effects 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 9
- 230000000171 quenching effect Effects 0.000 claims description 9
- 238000000197 pyrolysis Methods 0.000 claims description 7
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 239000010791 domestic waste Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000012670 alkaline solution Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 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 description 5
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
The utility model discloses a system for incinerating domestic garbage by utilizing renewable energy, which comprises an incineration system and a renewable energy system, wherein the incineration system comprises a wet deacidification tower and an incinerator, and the inlet end of the wet deacidification tower is provided with a pressure sensor and a pH sensor; the renewable energy system provides deacidification liquid and combustion-supporting oxygen for the wet deacidification tower and the incinerator respectively. The utility model discloses a renewable energy power generation system provides the electric energy for burning system and alkaline water electrolysis system, and alkaline water electrolysis system provides alkaline solution and combustion-supporting oxygen for burning the system, burns the system and provides the required heat source of heating electrolyte for alkaline water electrolysis system, the utility model discloses with renewable energy power generation system, burn system and alkaline water electrolysis system coupling, reached the purpose that utilizes renewable energy to handle domestic waste through multi-system combined use.
Description
Technical Field
The utility model relates to a domestic waste handles technical field, especially relates to a system for utilize renewable energy to burn domestic waste.
Background
With the rapid development of economic society of China, the production amount of household garbage is gradually increased. At present, the treatment method of the household garbage mainly comprises a landfill method, an incineration method, a composting method and the like. The landfill method occupies serious land resources, cannot recycle resources in the domestic garbage, and can generate garbage leachate, landfill gas, stink and other pollutants; the burning method generally uses non-renewable resources such as coal and the like, carbon emission exists, and secondary pollution, particularly dioxin pollution, is difficult to avoid; the composting method is difficult to be promoted under the condition of low garbage classification level in China at present because of high requirements on pretreatment and the like.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the utility model provides a system for utilize renewable energy to burn domestic waste.
The utility model provides a system for utilize renewable energy to burn domestic waste, include:
the incineration system comprises a wet deacidification tower and an incinerator, wherein a pressure sensor and a pH sensor are arranged at the inlet end of the wet deacidification tower;
and the renewable energy system is used for respectively providing deacidification liquid and combustion-supporting oxygen for the wet deacidification tower and the incinerator.
In some embodiments, the flow rate of the deacidification liquid is determined from the pressure sensor and the pH sensor.
In some embodiments, the renewable energy system includes an alkaline electrolysis water system and a renewable energy power generation system that provides electrical energy to the incineration system and the alkaline electrolysis water system, the incineration system providing a heat source to the alkaline electrolysis water system.
In some embodiments, oxygen produced by the electrolysis process of the alkaline electrolyzed water system is passed to the incinerator to assist combustion.
In some embodiments, the alkaline waste liquid produced by the alkaline electrolytic water system is used as the deacidification liquid required by the operation process of the wet deacidification tower.
In some embodiments, a secondary combustion chamber is arranged at the downstream of the incinerator, the domestic garbage in the incinerator is subjected to drying, anaerobic pyrolysis and burnout processes, and gas generated by anaerobic pyrolysis enters the secondary combustion chamber to be fully combusted.
In some embodiments, a waste heat boiler is arranged downstream of the secondary combustion chamber, high-temperature flue gas generated by combustion in the secondary combustion chamber enters the waste heat boiler, and the waste heat boiler is used for recycling flue gas waste heat.
In some embodiments, a quenching and neutralizing tower, a dry reaction device, a bag-type dust collector, an SCR denitrification device and the wet deacidification tower are sequentially arranged downstream of the exhaust-heat boiler, the quenching and neutralizing tower is used for rapidly reducing the temperature of the flue gas, the bag-type dust collector is used for dedusting the flue gas, the SCR denitrification device is used for denitrifying the flue gas, and the dry reaction device and the wet deacidification tower are both used for deacidifying the flue gas.
In some embodiments, the flue gas is discharged through a chimney after being deacidified by the wet deacidification tower.
In some embodiments, the renewable energy power generation system is one of a wind power generation system, a solar power generation system, a hydro-power generation system, or a geothermal power generation system.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model utilizes renewable energy to treat domestic garbage, thereby avoiding the consumption of non-renewable energy and saving energy;
the utility model discloses renewable energy power generation system provides the electric energy for burning system and alkaline water electrolysis system, and alkaline water electrolysis system provides alkaline solution and combustion-supporting oxygen for burning the system, burns the system and provides the required heat source of heating electrolyte for alkaline water electrolysis system, the utility model discloses with renewable energy power generation system, burn system and alkaline water electrolysis system coupling, reached the purpose that utilizes renewable energy to handle domestic waste through multisystem combined use.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a system for burning household garbage by using renewable energy.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The system for incinerating household garbage by using renewable energy according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in figure 1, the system for incinerating domestic garbage by using renewable energy comprises an incineration system and a renewable energy system. The renewable energy system comprises an alkaline electrolysis water system and a renewable energy power generation system.
The renewable energy power generation system is a system for generating power by using renewable energy. Renewable energy sources include solar energy, hydroenergy, wind energy, biomass energy, wave energy, tidal energy, ocean thermal energy, geothermal energy, and the like. Renewable energy sources can be recycled in nature. In some embodiments, the renewable energy power generation system may be one of a wind power generation system, a solar power generation system, a hydro power generation system, or a geothermal power generation system. It is to be understood that the renewable energy power generation system can also be other kinds of renewable energy power generation systems. In the utility model, the renewable energy power generation system provides electric energy for the incineration system and the alkaline water electrolysis system. It is understood that if the electric energy generated by the renewable energy power generation system has a balance, the balance electric energy can be uploaded to the power grid.
The alkaline electrolysis water system is the system that produces hydrogen energy and oxygen through the electrolysis water promptly the utility model discloses the required electric energy of alkaline electrolysis water system is provided by renewable energy power generation system. The electrolysis process of the alkaline electrolysis water system generates oxygen and hydrogen, the hydrogen is collected and stored in a hydrogen tank, and the oxygen is introduced into the incinerator for combustion supporting. Oxygen generated by the oxygen evolution anode of the alkaline electrolysis water system is used for supporting combustion in the combustion process of the incineration system, and hydrogen generated by the hydrogen evolution cathode of the alkaline electrolysis water system is stored in the hydrogen tank to be used as hydrogen energy.
When the alkaline water electrolysis system is used for electrolysis, the electrolyte needs to be heated to 70-90 ℃, namely the working temperature of the alkaline water electrolysis system is 70-90 ℃. This part of the heat source for heating the electrolyte of the alkaline electrolysis water may be provided by the waste heat boiler of the incineration system. Specifically, high-temperature flue gas generated by combustion enters a waste heat boiler, the waste heat boiler recovers and utilizes flue gas waste heat, and steam generated by the waste heat boiler is used for heating electrolyte of alkaline electrolyzed water. On one hand, the waste heat of the high-temperature flue gas is recycled, on the other hand, the electrolyte of the alkaline water electrolysis system is not required to be heated by an extra heat source, and the energy consumption of the whole system is reduced.
In addition, the alkaline waste liquid generated by the alkaline electrolytic water system can be used for the flue gas deacidification process of the incineration system. On one hand, the alkaline waste liquid generated by the alkaline electrolytic water system can be reused, so that the treatment cost of the alkaline waste liquid is saved; on the other hand, other deacidification liquid is not needed to be used for deacidifying the flue gas, so that the flue gas treatment cost is reduced.
The incineration system adopts a two-stage combustion mode, namely the incineration system is provided with a first combustion chamber and a second combustion chamber, the first combustion chamber burns solid, the second combustion chamber burns gas, and solid garbage enters the first combustion chamber and then undergoes the processes of drying, anaerobic pyrolysis, burnout and the like at a preset temperature, so that the generation of dioxin, which is a highly toxic gas, is effectively controlled, and the gas generated by pyrolysis enters the second combustion chamber for full combustion, so that toxic and harmful gas is effectively treated. After the solid ash slag treated by a combustion chamber is picked up and recovered by a ground bin, the waste iron and glass are comprehensively utilized to prepare the light building material.
The utility model discloses an it is a combustion chamber promptly to burn burning furnace, the utility model discloses an incineration system is including burning furnace, two combustion chambers, exhaust-heat boiler, sharp cooling neutralization tower, dry-type reaction unit, sack cleaner, SCR denitrification facility and wet-type deacidification tower.
The domestic garbage is burnt in an incinerator, and the domestic garbage in the incinerator is dried, anaerobically pyrolyzed and burnt out at 850-900 ℃. The renewable energy power generation system provides electric energy for the electric heating process of the incinerator, oxygen generated by the alkaline electrolytic water system provides combustion-supporting gas for the combustion of the household garbage, and the pressure of the oxygen introduced into the incinerator is 4-6MPa.
The second combustion chamber is arranged at the downstream of the incinerator, and the gas generated by anaerobic pyrolysis enters the second combustion chamber for full combustion. Specifically, flue gas generated in the combustion and pyrolysis processes of the incinerator enters the secondary combustion chamber to be fully combusted so as to remove toxic and harmful gas, and the retention time of the flue gas in the secondary combustion chamber is more than 2s so as to ensure that the gas in the flue gas can be fully combusted. Wherein, the flue gas comprises hydrogen, carbon monoxide, nitric oxide and other gases.
The waste heat boiler is arranged at the downstream of the secondary combustion chamber, and high-temperature flue gas generated by combustion in the secondary combustion chamber enters the waste heat boiler. A large number of heat exchange tubes are arranged in the waste heat boiler to absorb waste heat of the high-temperature flue gas, and steam generated by the waste heat of the high-temperature flue gas recovered by the waste heat boiler is used for heating electrolyte in the alkaline electrolytic water system. The flue gas after passing through the waste heat boiler enters a quenching and neutralizing tower.
The quenching and neutralizing tower is arranged at the downstream of the waste heat boiler and is used for rapidly reducing the temperature of the flue gas. The quenching and neutralizing tower rapidly cools the flue gas after heat exchange of the waste heat boiler to below 200 ℃, and the rapid cooling is to avoid the re-synthesis of toxic gases such as dioxin and the like and to cross a temperature interval for generating the dioxin. The flue gas after the quenching and neutralizing tower enters a dry type reaction device.
The dry reaction device is arranged at the downstream of the quenching and neutralizing tower and is used for deacidifying the flue gas. Spraying active carbon and Ca (OH) into a dry reaction device 2 Deacidifying the flue gas, and adsorbing substances such as heavy metals and dioxin which is possibly reproduced. The flue gas after passing through the dry type reaction device enters a bag-type dust collector.
The bag-type dust remover is arranged at the downstream of the dry-type reaction device and is used for removing dust from flue gas. The bag-type dust collector is suitable for collecting fine, dry and non-fibrous dust. After the dust-containing gas enters the bag type dust collector, the dust with large particles and large specific gravity is settled under the action of gravity and falls into the dust hopper, and the dust is blocked when the gas containing fine dust passes through the filter material, so that the gas is purified. And the flue gas passing through the bag-type dust collector enters an SCR denitrification device.
The SCR denitrification device is arranged at the downstream of the bag-type dust remover and is used for denitrification of flue gas. And the flue gas passing through the SCR denitrification device enters a wet-type deacidification tower.
The wet deacidification tower is arranged at the downstream of the SCR denitrification device and is used for deacidifying the wet flue gas. The working process of the wet type deacidification tower needs deacidification liquid to remove SO in the flue gas 2 Acid gases such as HCl and HF. The alkaline waste liquid generated by the alkaline electrolytic water system can be used as deacidification liquid required by the working process of the wet deacidification tower, so that the alkaline waste liquid generated by the alkaline electrolytic water system is reused. And the flue gas treated by the wet deacidification tower is discharged through a chimney under the action of a draught fan.
In order to facilitate the control of the deacidification liquid flow of the wet-type deacidification tower, a pressure sensor and a pH sensor are arranged at the inlet end of the wet-type deacidification tower, the pressure sensor is used for monitoring the pressure of the flue gas entering the wet-type deacidification tower, the pH sensor is used for monitoring the pH value of the flue gas solution entering the wet-type deacidification tower, and the deacidification liquid flow is determined according to the pressure sensor and the pH sensor. It will be appreciated that the greater the pressure of the flue gas entering the wet deacidification tower, the greater the flow rate of deacidification liquid required, and the greater the acidity of the flue gas solution entering the wet deacidification tower, the greater the flow rate of deacidification liquid required. It is understood that in some embodiments, during the wet flue gas deacidification process, the alkaline waste liquid of the alkaline electrolytic water system is pumped to the wet deacidification tower, and a flow controller can be arranged for accurately controlling the alkaline waste liquid entering the wet deacidification tower. Specifically, the alkaline electrolysis water system is connected with the wet deacidification tower through a pipeline, a delivery pump is arranged on the pipeline between the alkaline electrolysis water system and the wet deacidification tower, the delivery pump is a constant-speed constant-pressure pump, the constant-speed constant-pressure pump can flexibly set the output pressure and the discharge capacity of the alkaline waste liquid, and the instantaneous and accumulated output quantity of the alkaline waste liquid is measured. The pressure sensor, the pH sensor and the delivery pump are all electrically connected with the flow controller, and the flow controller controls the flow of the delivery pump according to the pressure sensor and the pH sensor, so that the aim of flexibly controlling the flow of the alkaline waste liquid is fulfilled.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms may be directed to different embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A system for incinerating household garbage by using renewable energy, comprising:
the incineration system comprises a wet deacidification tower and an incinerator, wherein a pressure sensor and a pH sensor are arranged at the inlet end of the wet deacidification tower;
and the renewable energy system is used for respectively providing deacidification liquid and combustion-supporting oxygen for the wet deacidification tower and the incinerator.
2. The system of claim 1, wherein the renewable energy system comprises an alkaline electrolysis water system and a renewable energy power generation system, the renewable energy power generation system providing electrical energy to the incineration system and the alkaline electrolysis water system, the incineration system providing a heat source for the alkaline electrolysis water system.
3. The system of claim 2, wherein oxygen produced by the electrolysis process of the alkaline electrolyzed water system is passed to the incinerator for combustion support.
4. The system as claimed in claim 2, wherein the alkaline waste liquid generated from the alkaline electrolytic water system is used as the deacidification liquid required for the operation of the wet deacidification tower.
5. The system as claimed in claim 1, wherein a secondary combustion chamber is provided downstream of the incinerator, the domestic garbage in the incinerator is dried, anaerobically pyrolyzed and burned out, and gas generated by anaerobic pyrolysis enters the secondary combustion chamber to be fully combusted.
6. The system according to claim 5, characterized in that a waste heat boiler is arranged downstream of the secondary combustion chamber, high-temperature flue gas generated by combustion in the secondary combustion chamber enters the waste heat boiler, and the waste heat boiler is used for recycling flue gas waste heat.
7. The system as claimed in claim 6, wherein a quenching and neutralizing tower, a dry reaction device, a bag-type dust collector, an SCR denitrification device and the wet deacidification tower are arranged in sequence at the downstream of the waste heat boiler, the quenching and neutralizing tower is used for rapidly reducing the temperature of the flue gas, the bag-type dust collector is used for dedusting the flue gas, the SCR denitrification device is used for denitrifying the flue gas, and the dry reaction device and the wet deacidification tower are both used for deacidifying the flue gas.
8. The system of claim 1, wherein flue gas is deacidified by the wet deacidification tower and discharged through a chimney.
9. The system of claim 2, wherein the renewable energy power generation system is one of a wind power generation system, a solar power generation system, a hydro power generation system, or a geothermal power generation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221730407.6U CN218645574U (en) | 2022-07-06 | 2022-07-06 | System for incinerating household garbage by utilizing renewable energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221730407.6U CN218645574U (en) | 2022-07-06 | 2022-07-06 | System for incinerating household garbage by utilizing renewable energy |
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| Publication Number | Publication Date |
|---|---|
| CN218645574U true CN218645574U (en) | 2023-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221730407.6U Active CN218645574U (en) | 2022-07-06 | 2022-07-06 | System for incinerating household garbage by utilizing renewable energy |
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| Country | Link |
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| CN (1) | CN218645574U (en) |
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- 2022-07-06 CN CN202221730407.6U patent/CN218645574U/en active Active
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