CN210699559U - Industrial waste gas treatment equipment - Google Patents
Industrial waste gas treatment equipment Download PDFInfo
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- CN210699559U CN210699559U CN201921089866.9U CN201921089866U CN210699559U CN 210699559 U CN210699559 U CN 210699559U CN 201921089866 U CN201921089866 U CN 201921089866U CN 210699559 U CN210699559 U CN 210699559U
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Abstract
The utility model discloses an industrial waste gas treatment device, which comprises a spray tower and a catalytic treatment reactor which are mutually communicated, wherein the spray tower comprises a tower body with a treatment cavity and a water supply device, set up in the wastewater tank of shaft of the tower below and install the mechanism that sprays in the treatment chamber, the catalytic treatment reactor is including the quartz glass casing that has the reaction chamber and install in the reaction unit of reaction chamber, quartz glass casing's both ends are provided with waste gas entry and exhaust outlet respectively, exhaust outlet pipe and exhaust gas entry intercommunication, quartz glass casing's outside parcel has the metal conducting layer of ground connection, reaction unit is including connecing exchanging the metal barrel holder of high voltage electricity and placing absorbent and the catalyst in the metal barrel holder, a plurality of through-holes have been seted up on the lateral wall of metal barrel holder, the blind end of barrel is just to the exhaust inlet, open end and exhaust outlet intercommunication of barrel, be the interval setting between the lateral wall of barrel and the lateral wall of reaction chamber. The utility model discloses an industrial waste gas treatment equipment can effectively remove the pollutant in the waste gas to the greatest extent.
Description
Technical Field
The utility model relates to a waste gas treatment field especially relates to an industrial waste gas treatment equipment.
Background
Enterprises can generate various waste gases in the production and processing processes, and the untreated waste gases are directly discharged into the atmosphere to cause serious pollution to the air, destroy the ecological environment and harm the health and living environment of human beings. Inhalable particles in industrial exhaust gas have become an important source of air quality hazard, and volatile compounds (VOCs) constitute a large source of inhalable particles. In order to avoid the direct emission of polluted air from the exhaust gas, methods such as condensation, adsorption and combustion methods are used to remove volatile compounds, but the above treatment methods cannot effectively remove pollutants in the exhaust gas.
Therefore, there is a need for an industrial waste gas treatment apparatus that effectively eliminates pollutants from the waste gas to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can effectively remove the industrial waste gas treatment equipment of the pollutant in the waste gas.
In order to achieve the purpose, the industrial waste gas treatment equipment comprises a spray tower and a catalytic treatment reactor which are communicated with each other, and comprises the spray tower, the catalytic treatment reactor, a waste gas inlet pipe and a waste gas outlet pipe which are communicated with the spray tower, wherein the spray tower comprises a tower body with a treatment cavity, a water supply device, a waste water tank arranged below the tower body and a spray mechanism arranged in the treatment cavity, the waste gas inlet pipe communicated with the treatment cavity is arranged on the side wall of the tower body, the waste gas outlet pipe communicated with the treatment cavity is arranged at the top of the tower body, the waste gas inlet pipe is arranged on the side wall of the tower body and is communicated with the treatment cavity, the waste gas outlet pipe is arranged at the top of the tower body and is communicated with the treatment cavity, the bottom of the tower body is provided with a waste water outlet communicated with the treatment cavity, the waste water outlet is positioned right above the waste water tank, the spraying mechanism is communicated with the water supply device, the catalytic treatment reactor comprises a quartz glass shell with a reaction cavity and a reaction device arranged in the reaction cavity, a waste gas inlet and a waste gas outlet which are communicated with the reaction cavity are respectively arranged at two ends of the quartz glass shell, a waste gas outlet pipe is communicated with the waste gas inlet, a metal conducting layer which is used for grounding as an outer electrode is wrapped at the outer side of the quartz glass shell, the reaction device comprises a metal barrel frame which is used for connecting an alternating current high-voltage power supply as an inner electrode, an adsorbent and a catalyst which are placed in the metal barrel frame, a plurality of through holes are formed in the side wall of the metal barrel frame, one end of the metal barrel frame is arranged in a closed mode, the other end of the metal barrel frame is arranged in an open mode, and the closed end, the open end of the cylinder is communicated with the waste gas outlet, and the side wall of the cylinder and the side wall of the reaction cavity are arranged at intervals.
Preferably, the metal conductive layer is a silver foil layer or a silver coating.
Preferably, the adsorbent is a porous structure.
Preferably, the interval between the side wall of the barrel and the side wall of the reaction chamber is in the range of 2-5 mm.
Preferably, the spraying mechanism comprises an air-water mixing device and spraying units respectively arranged above and below the air-water mixing device, the spraying units are communicated with the water supply device, a water outlet of each spraying unit is opposite to the air-water mixing device, and the air-water mixing device throws waste gas in the treatment cavity of the tower body.
Preferably, the gas-water mixing device comprises a plurality of rows of roller shaft groups which are mutually separated and staggered in the vertical direction, the roller shaft groups in the same row comprise a plurality of rotating roller shafts which are arranged alternately and side by side, the axial direction of the rotating roller shafts is vertical to the height direction of the tower body, and the communicating part of the waste gas inlet pipe and the treatment cavity is positioned below the corresponding rotating roller shafts.
Preferably, the rotation directions of two adjacent rotating roller shafts in each row of roller shaft groups are opposite.
Preferably, the spraying unit includes a water spraying branch pipe and a plurality of spray heads installed on the water spraying branch pipe and spaced apart from each other.
Preferably, the water supply device comprises a water storage tank, a water pump, a water pumping pipe and a water supply pipe, wherein one end of the water pumping pipe is communicated with a water inlet of the water pump, the other end of the water pumping pipe is communicated with the water storage tank, a water outlet of the water pump is communicated with one end of the water supply pipe, and the other end of the water supply pipe is communicated with the water spraying branch pipe.
Preferably, a water vapor drying device is installed at the top of the treatment cavity in the tower body.
Compared with the prior art, the industrial waste gas treatment equipment comprises a spray tower and a catalytic treatment reactor which are mutually communicated, wherein the spray tower comprises a tower body with a treatment cavity, a water supply device, a waste water tank arranged below the tower body and a spray mechanism arranged in the treatment cavity, a waste gas inlet pipe communicated with the treatment cavity is arranged on the side wall of the tower body, a waste gas outlet pipe communicated with the treatment cavity is arranged at the top of the tower body, a waste water outlet pipe communicated with the treatment cavity is arranged at the bottom of the tower body, the waste water outlet pipe is positioned right above the waste water tank, the spray mechanism is communicated with the water supply device, the catalytic treatment reactor comprises a quartz glass shell with a reaction cavity and a reaction device arranged in the reaction cavity, a waste gas inlet and a waste gas outlet which are communicated with the reaction cavity are respectively arranged at two ends of the quartz glass shell, the waste gas outlet pipe is communicated with the waste gas inlet, a metal conducting layer used for, the reaction device comprises a metal barrel frame used for connecting an alternating-current high-voltage power supply to serve as an inner electrode, and an adsorbent and a catalyst which are placed in the metal barrel frame, wherein a plurality of through holes are formed in the side wall of the metal barrel frame, one end of the metal barrel frame is sealed and arranged while the other end of the metal barrel frame is open, the closed end of the barrel body is right opposite to a waste gas inlet, the open end of the barrel body is communicated with a waste gas outlet, and the side wall of the barrel body and the side wall of the reaction cavity are arranged at intervals to form a discharge air gap. Waste gas collides with the water sprayed by the spraying mechanism in the spraying tower, so that dust particles in the waste gas are effectively adsorbed, and hydrophilic toxic and harmful gas in the waste gas can be adsorbed, thereby achieving the purpose of purifying the toxic and harmful gas. And, the final catalytic treatment reactor that also passes through of waste gas that comes out from the spray column, catalytic treatment reactor can realize plasma oxidation, absorption, catalyzed synergism, and the energy utilization rate is improved, VOCs in the deep oxidation waste gas becomes harmless carbon dioxide and water simultaneously, in addition, place the adsorbent in solitary reaction chamber, can provide VOCs waste gas dwell time in catalytic treatment reactor greatly, the active material of the short life that the process of discharging generated can be utilized again simultaneously, the degradation efficiency who helps improving VOCs, and the control degradation accessory substance.
Drawings
Fig. 1 is a schematic perspective view of the industrial waste gas treatment equipment of the present invention.
FIG. 2 is a side view of the industrial waste gas treatment facility of FIG. 1 with the water supply device hidden.
Figure 3 is a cross-sectional plan view of a catalytic treatment reactor of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 3.
Detailed Description
In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.
As shown in fig. 1 to 4, the industrial waste gas treatment equipment 100 of the present invention includes a spray tower 10 and a catalytic treatment reactor 20 which are communicated with each other, the spray tower 10 includes a tower body 11 having a treatment chamber 111, a water supply device 12, a waste water tank 13 disposed below the tower body 11, and a spray mechanism 14 installed in the treatment chamber 111, a waste gas inlet pipe 112 communicated with the treatment chamber 111 is installed on a side wall of the tower body 11, a waste gas outlet pipe 113 communicated with the treatment chamber 111 is installed on a top of the tower body 11, a waste water outlet 114 communicated with the treatment chamber 111 is disposed on a bottom of the tower body 11, the waste water outlet 114 is located right above the waste water tank 13, the spray mechanism 14 is communicated with the water supply device 12, the catalytic treatment reactor 20 includes a quartz glass housing 21 having the reaction chamber 211 and a reaction device 22 installed in the reaction chamber 211, a waste gas inlet 212 and a waste gas outlet 213 respectively disposed at two ends of the quartz glass housing 21 and communicated with, the waste gas outlet pipe 113 is communicated with the waste gas inlet 212, the outer side of the quartz glass shell 21 is wrapped with a metal conductive layer 214 which is used for being grounded and used as an outer electrode, the reaction device 22 comprises a metal barrel frame 221 which is used for being connected with an alternating-current high-voltage power supply and used as an inner electrode, an adsorbent 222 and a catalyst 223 which are placed in the metal barrel frame 221, the side wall of the metal barrel frame 221 is provided with a plurality of through holes, one end of the metal barrel frame 221 is in closed arrangement, the other end of the metal barrel frame 221 is in open arrangement, the closed end of the barrel 221 is opposite to the waste gas inlet 212, the open end of the barrel 221 is communicated with a waste gas outlet 213, and the side wall of the barrel 221. The waste gas collides with water sprayed by a spraying mechanism 14 in the spraying tower 10, so that dust particles in the waste gas are effectively adsorbed, and hydrophilic toxic and harmful gas in the waste gas can be adsorbed, thereby achieving the purpose of purifying the toxic and harmful gas. Moreover, the waste gas that comes out from spray column 10 also finally passes through catalytic treatment reactor 20, catalytic treatment reactor 20 can realize plasma oxidation, absorption, catalyzed synergism, and the energy utilization rate is improved, and simultaneously the VOCs in the degree of depth oxidation waste gas becomes harmless carbon dioxide and water, in addition, place adsorbent 222 in solitary reaction chamber 211, can provide VOCs waste gas dwell time in catalytic treatment reactor 20 greatly, can utilize the active material of the short life that the discharge process generated simultaneously again, help improving VOCs's degradation efficiency, and the control degradation accessory substance. Specifically, the interval between the sidewall of the barrel 221 and the sidewall of the reaction chamber 211 ranges from 2 to 5mm to be able to generate a uniform and stable discharge effect. For example, the metal conductive layer 214 is a silver foil layer, and of course, the metal conductive layer 214 can also be a silver coating layer according to actual needs, which can ensure good conductive effect. In addition, the adsorbent 222 is a porous structure, for example, the adsorbent 222 is activated alumina, zeolite molecular sieve, diatomite or bentonite particles, so that the adsorbent 222 can rapidly adsorb harmful substances. More specifically, the following:
as shown in fig. 1 and 2, the spraying mechanism 14 includes a gas-water mixing device 141 and spraying units 142 respectively installed above and below the gas-water mixing device 141, the spraying units 142 are communicated with the water supply device 12, a water outlet of the spraying unit 142 is opposite to the gas-water mixing device 141, the gas-water mixing device 141 swings the waste gas in the processing chamber 111 of the tower body 11, the swung waste gas collides with the water sprayed from the spraying units 142 at a high speed to refine the particle size of water droplets, and finally, a gas-water mixing state is formed, so that dust particles in the waste gas are effectively and thoroughly removed, and meanwhile, the toxic and harmful gas with hydrophilicity in the waste gas is adsorbed on the water droplets, and the purpose of purifying the toxic and harmful gas is also achieved. Specifically, the gas-water mixing device 141 comprises a plurality of rows of roller shaft groups 1411 which are spaced from each other in the vertical direction and are staggered, the roller shaft groups 1411 in the same row comprise a plurality of rotating rollers 1412 which are arranged alternately and side by side, the axial direction of the rotating rollers 1412 is vertical to the height direction of the tower body 11, the communication position of the waste gas inlet pipe 112 and the treatment cavity 111 is located below the corresponding rotating rollers 1412, the plurality of rows of roller shaft groups 1411 rotate mutually, the force of swinging the waste gas is enhanced, and the possibility of contact between the waste gas and water drops is increased. Furthermore, the rotation directions of two adjacent rotating roll shafts 1412 in each row of roll shaft groups 1411 are opposite to each other, so as to enhance the effect of throwing the exhaust gas and prolong the length of the wind flow.
As shown in fig. 1 and 2, the spray unit 142 includes a spray nozzle 1421 and a plurality of spray heads 1422 installed on the spray nozzle 1421 and spaced apart from each other. Specifically, the water supply device 12 includes a water storage tank 121, a water pump 122, a water pumping pipe 123 and a water supply pipe 124, wherein one end of the water pumping pipe 123 is communicated with a water inlet of the water pump 122, the other end of the water pumping pipe 123 is communicated with the water storage tank 121, a water outlet of the water pump 122 is communicated with one end of the water supply pipe 124, and the other end of the water supply pipe 124 is communicated with the water spray branch pipe 1421, so as to deliver water to the water spray branch pipe 1421. More specifically, the top of the treatment chamber 111 within the tower 11 is fitted with a moisture drying device 15, such that the exhaust gas delivered to the catalytic treatment reactor 20 is a dry gas to ensure safety, for example, the moisture drying device 15 is an evaporator.
The working principle of the industrial waste gas treatment equipment 100 of the present invention is explained with reference to the accompanying drawings 1 to 4: workshop waste gas is delivered into the processing cavity 111 of the tower body 11 through the waste gas inlet pipe 112, the waste gas is delivered from bottom to top in the processing cavity 111, the spraying mechanism 14 is operated, the rotating roll shafts 1412 in each row of roll shaft groups 1411 rotate, and the rotation directions of two adjacent rotating rollers 1412 in the same row of roller group 1411 are opposite, so that the exhaust gas undergoes shearing while being thrown, meanwhile, the water pump 122 pumps the water in the water storage tank 121 to the spraying unit 142, the rear waste gas collides with the water sprayed from the spraying unit 142 at a high speed to refine the particle size of water drops, finally, a gas-water mixed state is formed, dust particles in the waste gas are effectively removed, meanwhile, the toxic and harmful gas with hydrophilicity in the waste gas is adsorbed on the water drops, the waste gas is synchronously purified, the water drops after the waste gas purification are mutually condensed and fall under the action of gravity, and finally the water drops are discharged from the waste water discharge port 114 and fall and are collected in the waste water tank 13. The catalytic treatment reactor 20 is operated, waste gas is dried by the water vapor drying device 15 and then is sent to the reaction cavity 211 from the waste gas inlet 212 through the waste gas outlet pipe 113, firstly passes through the 2-5mm dielectric barrier discharge gap, in the dielectric barrier discharge process, a plurality of micro discharge channels can be formed in the discharge gap, a large amount of high-energy electrons and active free radicals are generated, and the active substances and VOCs undergo electron collision reaction or chain chemical reaction, so that the primary degradation of the VOCs can be realized. The exhaust gases then pass through the perforated metal cartridge 221 to contact the adsorbent 222 sufficiently to be adsorbed, greatly prolonging the residence time of the VOCs in the reaction chamber 211. Meanwhile, after passing through the perforated metal barrel frame 221, the active substances which are generated in the discharging process and have not yet reacted generate a long-life intermediate state active substance on the surface of the catalyst 223 under the synergistic action of the catalyst 223, so that the catalytic oxidation performance can be improved, VOCs trapped by the adsorbent 222 undergo deep oxidation reaction under the action of the catalyst 223, are finally converted into harmless titanium dioxide and water, and are finally output from the waste gas outlet 213 to be discharged into the atmospheric environment, and the working principle is as described above.
Compared with the prior art, the industrial waste gas treatment equipment 100 of the utility model comprises a spray tower 10 and a catalytic treatment reactor 20 which are communicated with each other, the spray tower 10 comprises a tower body 11 with a treatment cavity 111, a water supply device 12, a waste water tank 13 arranged below the tower body 11 and a spray mechanism 14 arranged in the treatment cavity 111, a waste gas inlet pipe 112 communicated with the treatment cavity 111 is arranged on the side wall of the tower body 11, a waste gas outlet pipe 113 communicated with the treatment cavity 111 is arranged on the top of the tower body 11, a waste water outlet 114 communicated with the treatment cavity 111 is arranged at the bottom of the tower body 11, the waste water outlet 114 is positioned right above the waste water tank 13, the spray mechanism 14 is communicated with the water supply device 12, the catalytic treatment reactor 20 comprises a quartz glass shell 21 with the reaction cavity 211 and a reaction device 22 arranged in the reaction cavity 211, a waste gas inlet 212 and a waste gas outlet 213 which are communicated with the reaction cavity 211 are respectively arranged at the two ends, the waste gas outlet pipe 113 is communicated with the waste gas inlet 212, the outer side of the quartz glass shell 21 is wrapped with a metal conductive layer 214 which is used for being grounded and used as an outer electrode, the reaction device 22 comprises a metal barrel frame 221 which is used for being connected with an alternating-current high-voltage power supply and used as an inner electrode, an adsorbent 222 and a catalyst 223 which are placed in the metal barrel frame 221, the side wall of the metal barrel frame 221 is provided with a plurality of through holes, one end of the metal barrel frame 221 is in closed arrangement, the other end of the metal barrel frame 221 is in open arrangement, the closed end of the barrel 221 is opposite to the waste gas inlet 212, the open end of the barrel 221 is communicated with a waste gas outlet 213, and the side wall of the barrel 221. The waste gas collides with water sprayed by a spraying mechanism 14 in the spraying tower 10, so that dust particles in the waste gas are effectively adsorbed, and hydrophilic toxic and harmful gas in the waste gas can be adsorbed, thereby achieving the purpose of purifying the toxic and harmful gas. Moreover, the waste gas that comes out from spray column 10 also finally passes through catalytic treatment reactor 20, catalytic treatment reactor 20 can realize plasma oxidation, absorption, catalyzed synergism, and the energy utilization rate is improved, and simultaneously the VOCs in the degree of depth oxidation waste gas becomes harmless carbon dioxide and water, in addition, place adsorbent 222 in solitary reaction chamber 211, can provide VOCs waste gas dwell time in catalytic treatment reactor 20 greatly, can utilize the active material of the short life that the discharge process generated simultaneously again, help improving VOCs's degradation efficiency, and the control degradation accessory substance.
The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.
Claims (10)
1. An industrial waste gas treatment equipment characterized in that: the device comprises a spray tower and a catalytic treatment reactor which are mutually communicated, wherein the spray tower comprises a tower body with a treatment cavity, a water supply device, a wastewater box arranged below the tower body and a spray mechanism arranged in the treatment cavity, a waste gas inlet pipe communicated with the treatment cavity is arranged on the side wall of the tower body, a waste gas outlet pipe communicated with the treatment cavity is arranged at the top of the tower body, a waste water outlet communicated with the treatment cavity is arranged at the bottom of the tower body, the waste water outlet is positioned right above the wastewater box, the spray mechanism is communicated with the water supply device, the catalytic treatment reactor comprises a quartz glass shell with a reaction cavity and a reaction device arranged in the reaction cavity, a waste gas inlet and a waste gas outlet communicated with the reaction cavity are respectively arranged at the two ends of the quartz glass shell, and the waste gas outlet pipe is communicated with the waste gas inlet, the outside parcel of quartz glass casing has the metal conducting layer that is used for ground connection in order to regard as the outer electrode, reaction unit including be used for connecing alternating current high voltage power supply with the metal barrel holder as the inner electrode and place in adsorbent and catalyst in the metal barrel holder, a plurality of through-holes have been seted up on the lateral wall of metal barrel holder, metal barrel holder one end is the closure and arranges and the other end is and opens to open and arrange, the blind end of barrel is just right waste gas entry, open the end of barrel with the waste gas outlet intercommunication, the lateral wall of barrel with be the interval setting between the lateral wall of reaction chamber.
2. The industrial waste gas treatment apparatus of claim 1, wherein the metal conductive layer is a silver foil layer or a silver coating.
3. The industrial waste gas treatment apparatus of claim 1, wherein the adsorbent is a porous structure.
4. The industrial waste gas treatment apparatus of claim 3, wherein the separation between the sidewall of the barrel and the sidewall of the reaction chamber is in the range of 2-5 mm.
5. The industrial waste gas treatment equipment according to claim 1, wherein the spraying mechanism comprises a gas-water mixing device and spraying units respectively installed above and below the gas-water mixing device, the spraying units are communicated with the water supply device, water outlets of the spraying units are opposite to the gas-water mixing device, and the gas-water mixing device throws the waste gas in the treatment cavity of the tower body.
6. The industrial waste gas treatment equipment according to claim 5, wherein the gas-water mixing device comprises a plurality of rows of roller shaft groups which are spaced and staggered from each other in the vertical direction, the roller shaft groups in the same row comprise a plurality of rotating roller shafts which are arranged alternately and side by side, the axial direction of the rotating roller shafts is vertical to the height direction of the tower body, and the communication position of the waste gas inlet pipe and the treatment cavity is positioned below the rotating roller shafts correspondingly.
7. The industrial waste gas treatment facility of claim 6, wherein the direction of rotation between two adjacent rotating roll shafts in each row of the roll shaft groups is opposite.
8. The industrial waste gas treatment apparatus according to claim 5, wherein the spray unit includes a water spray branch pipe and a plurality of spray heads installed on the water spray branch pipe and spaced apart from each other.
9. The industrial waste gas treatment equipment according to claim 8, wherein the water supply device comprises a water storage tank, a water suction pump, a water suction pipe and a water supply pipe, one end of the water suction pipe is communicated with a water inlet of the water suction pump, the other end of the water suction pipe is communicated with the water storage tank, a water outlet of the water suction pump is communicated with one end of the water supply pipe, and the other end of the water supply pipe is communicated with the water spray branch pipe.
10. The industrial waste gas treatment facility of claim 9, wherein a moisture drying device is installed at the top of the treatment chamber in the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089866.9U CN210699559U (en) | 2019-07-11 | 2019-07-11 | Industrial waste gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089866.9U CN210699559U (en) | 2019-07-11 | 2019-07-11 | Industrial waste gas treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210699559U true CN210699559U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921089866.9U Expired - Fee Related CN210699559U (en) | 2019-07-11 | 2019-07-11 | Industrial waste gas treatment equipment |
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| Country | Link |
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| CN (1) | CN210699559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909274A (en) * | 2021-09-23 | 2022-01-11 | 深圳市启明金株生态科技有限公司 | Peculiar smell purifier is used in kitchen garbage disposal based on microbial purification method |
-
2019
- 2019-07-11 CN CN201921089866.9U patent/CN210699559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909274A (en) * | 2021-09-23 | 2022-01-11 | 深圳市启明金株生态科技有限公司 | Peculiar smell purifier is used in kitchen garbage disposal based on microbial purification method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210711 |