CN220564558U - Multistage spray type biogas biological desulfurization device - Google Patents
Multistage spray type biogas biological desulfurization device Download PDFInfo
- Publication number
- CN220564558U CN220564558U CN202322195695.0U CN202322195695U CN220564558U CN 220564558 U CN220564558 U CN 220564558U CN 202322195695 U CN202322195695 U CN 202322195695U CN 220564558 U CN220564558 U CN 220564558U
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- fixedly arranged
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- water
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 33
- 230000023556 desulfurization Effects 0.000 title claims abstract description 33
- 239000007921 spray Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 239000003595 mist Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000007664 blowing Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 20
- 239000000243 solution Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of biogas treatment, and discloses a multistage spray type biogas biological desulfurization device, which comprises a main body mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is positioned in the middle of the main body mechanism, the main body mechanism comprises a main body shell, a first fixing base, a water storage tank, a water suction pump and a water suction pipeline, the first fixing base is fixedly arranged at the lower end of the main body shell, the water storage tank is fixedly arranged at the left end of the main body shell, the water suction pump is fixedly arranged at the lower end of the inner end of the water storage tank, the water suction pipeline is fixedly arranged at the left end of the water suction pump, and the main body mechanism further comprises a filtering cleaning assembly, a supercharger, a mist spray head, a water filling port, a sealing cap, a flow guiding inclined plate and a water outlet pipeline. According to the multistage spray type biogas biological desulfurization device, bacteria and impurities in biogas can be filtered out by installing the filtering cleaning component, and useful substances can be left in the filtered biogas, so that the desulfurization effect is better, and meanwhile, the efficiency is higher.
Description
Technical Field
The utility model relates to the technical field of biogas treatment, in particular to a multistage spray type biogas biological desulfurization device.
Background
The biogas is used as an emerging energy source, the application of the biogas is more and more extensive, the biogas is strictly regulated in the environmental protection standard of China, and the H2S content in the biogas gas cannot exceed 20mg/m < 3 > -when the biogas energy source is utilized. In both industrial and domestic gases, H2S must be removed as much as possible, and when biogas is produced from the anaerobic fermentation apparatus, particularly at medium or high temperatures, a large amount of H2S is carried along, so that H2S inside the biogas needs to be removed.
The utility model provides a multistage spray type biogas biological desulfurization device is proposed in prior art CN216614550U patent document, this patent document proposes the top fixed mounting of jar body has first motor, the output shaft of first motor extends to the inside of jar body and the bolt has the action wheel, the right side surface meshing of action wheel has the driven wheel, the inside bolt of driven wheel has the fixed pipe, the bottom of fixed pipe is provided with the receiver, both sides all fixed mounting have a plurality of shower nozzles around the receiver bottom, the both ends of receiver are connected with the inner wall rotation of jar body, the right-hand liquid tank that is provided with of jar body can increase the area of contact with the marsh gas, and improve the advantage of desulfurization efficiency, the most fixed spray tube that adopts of current multistage spray type biogas biological desulfurization device sprays, make the marsh gas desulfurization not enough comprehensively, and the lower problem of desulfurization efficiency.
However, the biogas contains a lot of bacteria and impurities, and the existing many desulfurization devices can not well treat the bacteria and impurities in the biogas, and the desulfurization effect is affected when the bacteria and impurities are not treated.
Disclosure of Invention
(one) solving the technical problems
The utility model aims to provide a multistage spray type biogas biological desulfurization device, which aims to solve the problems that impurities and bacteria in biogas cannot be well cleaned and desulfurization effect is affected in the background art.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multistage spray-type marsh gas biological desulfurization device, includes main body mechanism and auxiliary mechanism, auxiliary mechanism is located the centre of main body mechanism, main body mechanism includes main body shell, unable adjustment base one, water storage tank, water suction pump and water suction pipeline, unable adjustment base one fixed mounting is in the lower extreme of main body shell, the water storage tank fixed mounting is in the left end of main body shell, water suction pump fixed mounting is in the lower extreme of water storage tank inner, water suction pipeline fixed mounting is in the left end of water suction pump;
the main body mechanism further comprises a filtering cleaning assembly, a supercharger, a mist sprinkler bead, a water filling port, a sealing cap, a diversion sloping plate and a water outlet pipeline, wherein the filtering cleaning assembly is fixedly arranged at the right end of the protective shell, the supercharger is fixedly arranged at the left end of the inner end of the main body shell, the mist sprinkler bead is fixedly arranged at the right end of the supercharger, the water filling port is fixedly arranged at the upper end of the inner end of the water storage tank, the sealing cap is movably arranged at the inner end of the water filling port, the diversion sloping plate is fixedly arranged at the lower end of the inner end of the main body shell, and the water outlet pipeline is fixedly arranged at the lower end of the main body shell.
Preferably, the filter cleaning assembly comprises a filter box body, a second fixing base, a first filter plate, a first fixing clamp plate, a second filter plate, a second fixing clamp plate, a third filter plate, a third fixing clamp plate, a fixing connecting rod, a fixing sealing door plate, a door handle, an air suction machine and an air suction pipeline, wherein the filter box body is fixedly arranged at the right end of the protective shell, the second fixing base is fixedly arranged at the lower end of the filter box body, and the second fixing base enables the filter box body to be more stable when in use.
Preferably, the first filter plate is movably arranged at the inner end of the filter box body, the first fixing clamp plate is movably arranged at the left end of the upper end and the lower end of the first filter plate, and the first fixing clamp plate can firmly fix the first filter plate.
Preferably, the second filter plate is movably arranged at the inner end of the filter box body, the second fixing clamp plate is movably arranged at the left end of the upper end and the lower end of the second filter plate, and the second fixing clamp plate can firmly fix the second filter plate.
Preferably, the filter plate III is movably arranged at the inner end of the filter box body, the fixing clamp plate III is movably arranged at the left end of the upper end and the lower end of the filter plate III, and the fixing clamp plate III can firmly fix the filter plate III.
Preferably, the fixed connection pole movable mounting is in the inside of filtration box, fixed connection pole fixed connection filter one, filter two and filter three, fixed seal door plant fixed mounting is in the right-hand member of filter two, door handle fixed mounting is in the right-hand member of fixed seal door plant, and fixed seal door can prevent that marsh gas from running out.
Preferably, the aspirator is fixedly arranged at the lower end of the inner end of the filtering box body, the air suction pipeline is fixedly arranged at the lower end of the aspirator, and methane can be sucked in by providing suction force for the air suction pipeline through the aspirator.
Preferably, the auxiliary mechanism comprises a first supporting leg, a first anti-slip pad, a second supporting leg, a second anti-slip pad, a protective housing, an electric module, an air blowing fan and an air duct, wherein the first supporting leg is fixedly arranged at the lower end of the main body housing, the first anti-slip pad is fixedly arranged at the lower end of the first supporting leg, and the first anti-slip pad can prevent the first supporting leg from sliding during use.
Preferably, the second supporting leg is fixedly arranged at the lower end of the filtering box body, the second anti-slip pad is fixedly arranged at the lower end of the second supporting leg, and the second anti-slip pad can prevent the second supporting leg from sliding during use.
Preferably, the protective housing is fixedly arranged at the right end of the ventilation pipeline, the protective housing can stably and fixedly protect the air blowing fan, the air blowing fan is fixedly arranged at the left end of the electric module, the ventilation pipeline is fixedly arranged at the right end of the main body housing, and the air blowing fan can blow away methane after filtering.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the multistage spray type biogas biological desulfurization device, bacteria and impurities in biogas can be filtered out by installing the filtering and cleaning assembly, and useful substances can be left in the filtered biogas, so that the desulfurization effect is better, and meanwhile, the efficiency is higher;
2. according to the multistage spray type biogas biological desulfurization device, the auxiliary mechanism is arranged, so that the device can be supported, the device is more stable in use, gas can be conveyed efficiently, and the working efficiency of the device is greatly improved;
3. according to the multistage spray type biogas biological desulfurization device, the main body mechanism is arranged, and biogas can be sprayed through the spray heads to enable the biogas to be better in desulfurization effect, so that the working efficiency of the device is higher, and the desulfurization effect is better.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic cross-sectional view of two structures of the present utility model;
FIG. 4 is a schematic view of the detailed construction of a part of the body mechanism of the present utility model;
FIG. 5 is an enlarged schematic view of a partial detail of the filter cleaning assembly of the present utility model;
FIG. 6 is an enlarged schematic view of the auxiliary mechanism of the present utility model.
In the figure: 1. a main body mechanism; 101. a main body housing; 102. a first fixed base; 103. a water storage tank; 104. a water suction pump; 105. a water suction pipe; 106. a filter cleaning assembly; 1061. a filter box; 1062. a second fixed base; 1063. a first filter plate; 1064. a first fixed clamping plate; 1065. a second filter plate; 1066. a second fixed clamping plate; 1067. a filter plate III; 1068. a fixed clamping plate III; 1069. fixing the connecting rod; 10610. fixing the sealing door plate; 10611. a door handle; 10612. a suction machine; 10613. an air suction pipe; 107. a supercharger; 108. a mist spray nozzle; 109. a water filling port; 1010. sealing the cap; 1011. a diversion sloping plate; 1012. a water outlet pipe; 2. an auxiliary mechanism; 201. the first supporting leg is supported; 202. an anti-slip pad I; 203. a second supporting leg; 204. a second anti-slip pad; 205. a protective housing; 206. an electric module; 207. an air blowing fan; 208. and a ventilation duct.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a multistage spray-type biogas biological desulfurization device, including main body mechanism 1 and auxiliary mechanism 2, auxiliary mechanism 2 is located the centre of main body mechanism 1, main body mechanism 1 includes main body shell 101, unable adjustment base one 102, water storage tank 103, water suction pump 104 and water suction pipeline 105, unable adjustment base one 102 fixed mounting is in the lower extreme of main body shell 101, water storage tank 103 fixed mounting is in the left end of main body shell 101, water suction pump 104 fixed mounting is in the lower extreme of water storage tank 103 inner, water suction pipeline 105 fixed mounting is in the left end of water suction pump 104;
the main body mechanism 1 further comprises a filtering and cleaning assembly 106, a supercharger 107, a mist spray head 108, a water injection port 109, a sealing cap 1010, a diversion inclined plate 1011 and a water outlet pipeline 1012, wherein the filtering and cleaning assembly 106 is fixedly arranged at the right end of the protective housing 205, the supercharger 107 is fixedly arranged at the left end of the inner end of the main body housing 101, the mist spray head 108 is fixedly arranged at the right end of the supercharger 107, the water injection port 109 is fixedly arranged at the upper end of the inner end of the water storage tank 103, the sealing cap 1010 is movably arranged at the inner end of the water injection port 109, the diversion inclined plate 1011 is fixedly arranged at the lower end of the inner end of the main body housing 101, and the water outlet pipeline 1012 is fixedly arranged at the lower end of the main body housing 101.
The filter cleaning component 106 comprises a filter box body 1061, a second fixed base 1062, a first filter plate 1063, a first fixed clamping plate 1064, a second filter plate 1065, a second fixed clamping plate 1066, a third filter plate 1067, a third fixed clamping plate 1068, a fixed connecting rod 1069, a fixed sealing door plate 10610, a door handle 10611, a suction machine 10612 and a suction pipe 10613, wherein the filter box body 1061 is fixedly arranged at the right end of a protective shell 205, the second fixed base 1062 is fixedly arranged at the lower end of the filter box body 1061, the first filter plate 1063 is movably arranged at the inner end of the filter box body 1061, the first fixed clamping plate 1064 is movably arranged at the left end of the upper end and the lower end of the first filter plate 1063, the second filter plate 1065 is movably arranged at the inner end of the filter box body 1061, the second fixed clamping plate 1066 is movably arranged at the left end of the upper end and the lower end of the second filter plate 1065, the third filter plate 1067 is movably arranged at the inner end of the filter box body 1061, the third fixed clamping plate 1068 is movably arranged at the left end of the upper end and the lower end of the filter plate 1067, the fixed connecting rod 1069 is movably installed in the filtering box 1061, the fixed connecting rod 1069 is fixedly connected with the first filtering plate 1063, the second filtering plate 1065 and the third filtering plate 1067, the fixed sealing door plate 10610 is fixedly installed at the right end of the second filtering plate 1065, the door handle 10611 is fixedly installed at the right end of the fixed sealing door plate 10610, the air suction machine 10612 is fixedly installed at the lower end of the inner end of the filtering box 1061, the air suction pipeline 10613 is fixedly installed at the lower end of the air suction machine 10612, the air suction machine 10612 provides strong suction force, at this time, the air suction pipeline 10613 sucks methane into the filtering box 1061, the methane is filtered through the first filtering plate 1063, the second filtering plate 1065 and the third filtering plate 1067, and the methane is filtered finally, at this time, after the service time of the second filtering plate 1063, the second filtering plate 1065 and the third filtering plate 1067 is properly, the methane is required to be filtered by pulling the door handle 10611 Filter two 1065 and filter three 1067 are pulled out and then cleaned.
The auxiliary mechanism 2 comprises a first supporting leg 201, a first anti-slip pad 202, a second supporting leg 203, a second anti-slip pad 204, a protective housing 205, an electric module 206, an air blowing fan 207 and an air duct 208, wherein the first supporting leg 201 is fixedly arranged at the lower end of the main body housing 101, the first anti-slip pad 202 is fixedly arranged at the lower end of the first supporting leg 201, the second supporting leg 203 is fixedly arranged at the lower end of the filtering box 1061, the second anti-slip pad 204 is fixedly arranged at the lower end of the second supporting leg 203, the protective housing 205 is fixedly arranged at the right end of the air duct 208, the electric module 206 is fixedly arranged at the right end of the inner end of the protective housing 205, the air blowing fan 207 is fixedly arranged at the left end of the electric module 206, the air duct 208 is fixedly arranged at the right end of the main body housing 101, the electric module 206 in the protective housing 205 can provide powerful power for the air blowing fan 207 after filtering, and then air in the filtering box 1061 is sucked through the air blowing fan 207 and blown into the main body housing 101.
Working principle: the aspirator 10612 provides a strong suction force, the aspirator tube 10613 sucks the biogas into the filter box 1061, the biogas is filtered through the first filter plate 1063, filtered through the second filter plate 1065, filtered through the third filter plate 1067, the biogas is properly desulfurized, after the first filter plate 1063, the second filter plate 1065 and the third filter plate 1067 are used for a long time, the first filter plate 1063, the second filter plate 1065 and the third filter plate 1067 are pulled out by pulling the door handle 10611, the biogas is cleaned, the electric module 206 in the protective housing 205 provides a strong power for the blowing fan 207 after the biogas is filtered, the gas in the filter box 1061 is sucked through the ventilating fan 207 and blown into the main housing 101, the suction pump 104 sucks the liquid in the water storage tank 103, the booster 107 pressurizes the liquid, the liquid is sprayed out through the plurality of spray heads 108, the biogas is desulfurized in all directions, and the waste water is collected through the inclined plate 1012 and discharged through the guide flow guide.
Finally, it should be noted that the above description is only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and that the simple modification and equivalent substitution of the technical solution of the present utility model can be made by those skilled in the art without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
1. The utility model provides a multistage spray-type biogas biological desulfurization device, includes main part mechanism (1) and complementary unit (2), its characterized in that: the auxiliary mechanism (2) is positioned in the middle of the main body mechanism (1), the main body mechanism (1) comprises a main body shell (101), a first fixing base (102), a water storage tank (103), a water suction pump (104) and a water suction pipeline (105), the first fixing base (102) is fixedly arranged at the lower end of the main body shell (101), the water storage tank (103) is fixedly arranged at the left end of the main body shell (101), the water suction pump (104) is fixedly arranged at the lower end of the inner end of the water storage tank (103), and the water suction pipeline (105) is fixedly arranged at the left end of the water suction pump (104);
the main body mechanism (1) further comprises a filtering cleaning assembly (106), a supercharger (107), a mist spray nozzle (108), a water injection port (109), a sealing cap (1010), a diversion inclined plate (1011) and a water outlet pipeline (1012), wherein the filtering cleaning assembly (106) is fixedly arranged at the right end of the protecting shell (205), the supercharger (107) is fixedly arranged at the left end of the inner end of the main body shell (101), the mist spray nozzle (108) is fixedly arranged at the right end of the supercharger (107), the water injection port (109) is fixedly arranged at the upper end of the inner end of the water storage tank (103), the sealing cap (1010) is movably arranged at the inner end of the water injection port (109), the diversion inclined plate (1011) is fixedly arranged at the lower end of the inner end of the main body shell (101), and the water outlet pipeline (1012) is fixedly arranged at the lower end of the main body shell (101).
2. The multi-stage spray biogas biological desulfurization apparatus of claim 1, wherein: the filter cleaning assembly (106) comprises a filter box body (1061), a second fixed base (1062), a first filter plate (1063), a first fixed clamping plate (1064), a second filter plate (1065), a second fixed clamping plate (1066), a third filter plate (1067), a third fixed clamping plate (1068), a fixed connecting rod (1069), a fixed sealing door plate (10610), a door handle (10611), an air suction machine (10612) and an air suction pipeline (10613), wherein the filter box body (1061) is fixedly arranged at the right end of the protective shell (205), and the second fixed base (1062) is fixedly arranged at the lower end of the filter box body (1061).
3. The multi-stage spray biogas biological desulfurization apparatus of claim 2, wherein: the first filter plate (1063) is movably mounted at the inner end of the filter box body (1061), and the first fixing clamp plate (1064) is movably mounted at the left end of the upper end and the lower end of the first filter plate (1063).
4. A multi-stage spray biogas biological desulfurization apparatus according to claim 3, characterized in that: the second filter plate (1065) is movably mounted at the inner end of the filter box body (1061), and the second fixing clamp plate (1066) is movably mounted at the left end of the upper end and the lower end of the second filter plate (1065).
5. The multi-stage spray biogas biological desulfurization apparatus of claim 4, wherein: the third filter plate (1067) is movably arranged at the inner end of the filter box body (1061), and the third fixing clamp plate (1068) is movably arranged at the left end of the upper end and the lower end of the third filter plate (1067).
6. The multi-stage spray biogas biological desulfurization apparatus of claim 5, wherein: the fixed connecting rod (1069) is movably mounted in the filtering box body (1061), the fixed connecting rod (1069) is fixedly connected with the first filtering plate (1063), the second filtering plate (1065) and the third filtering plate (1067), the fixed sealing door plate (10610) is fixedly mounted at the right end of the second filtering plate (1065), and the door handle (10611) is fixedly mounted at the right end of the fixed sealing door plate (10610).
7. The multi-stage spray biogas biological desulfurization apparatus of claim 6, wherein: the air suction machine (10612) is fixedly arranged at the lower end of the inner end of the filtering box body (1061), and the air suction pipeline (10613) is fixedly arranged at the lower end of the air suction machine (10612).
8. The multi-stage spray biogas biological desulfurization apparatus of claim 7, wherein: the auxiliary mechanism (2) comprises a first supporting leg (201), a second supporting leg (202), a second supporting leg (203), a second anti-slip pad (204), a protective housing (205), an electric module (206), a blowing fan (207) and a ventilation pipeline (208), wherein the first supporting leg (201) is fixedly arranged at the lower end of the main body housing (101), and the first anti-slip pad (202) is fixedly arranged at the lower end of the first supporting leg (201).
9. The multi-stage spray biogas biological desulfurization apparatus of claim 8, wherein: the second support leg (203) is fixedly arranged at the lower end of the filtering box body (1061), and the second anti-slip pad (204) is fixedly arranged at the lower end of the second support leg (203).
10. The multi-stage spray biogas biological desulfurization apparatus of claim 9, wherein: the protection shell (205) is fixedly arranged at the right end of the ventilation pipeline (208), the electric module (206) is fixedly arranged at the right end of the inner end of the protection shell (205), the blowing fan (207) is fixedly arranged at the left end of the electric module (206), and the ventilation pipeline (208) is fixedly arranged at the right end of the main body shell (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322195695.0U CN220564558U (en) | 2023-08-16 | 2023-08-16 | Multistage spray type biogas biological desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322195695.0U CN220564558U (en) | 2023-08-16 | 2023-08-16 | Multistage spray type biogas biological desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220564558U true CN220564558U (en) | 2024-03-08 |
Family
ID=90103702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322195695.0U Active CN220564558U (en) | 2023-08-16 | 2023-08-16 | Multistage spray type biogas biological desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220564558U (en) |
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2023
- 2023-08-16 CN CN202322195695.0U patent/CN220564558U/en active Active
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