CN220834906U - Workshop exhaust purification discharging equipment - Google Patents
Workshop exhaust purification discharging equipment Download PDFInfo
- Publication number
- CN220834906U CN220834906U CN202322408049.8U CN202322408049U CN220834906U CN 220834906 U CN220834906 U CN 220834906U CN 202322408049 U CN202322408049 U CN 202322408049U CN 220834906 U CN220834906 U CN 220834906U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- rotary
- fixedly connected
- absorption
- rotary shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000746 purification Methods 0.000 title claims abstract description 21
- 238000007599 discharging Methods 0.000 title claims description 15
- 239000002912 waste gas Substances 0.000 claims abstract description 55
- 238000010521 absorption reaction Methods 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 27
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 20
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 7
- 239000007788 liquid Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000002894 chemical waste Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- ABSPRNADVQNDOU-UHFFFAOYSA-N Menaquinone 1 Natural products C1=CC=C2C(=O)C(CC=C(C)C)=C(C)C(=O)C2=C1 ABSPRNADVQNDOU-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- SHUZOJHMOBOZST-UHFFFAOYSA-N phylloquinone Natural products CC(C)CCCCC(C)CCC(C)CCCC(=CCC1=C(C)C(=O)c2ccccc2C1=O)C SHUZOJHMOBOZST-UHFFFAOYSA-N 0.000 description 2
- MBWXNTAXLNYFJB-NKFFZRIASA-N phylloquinone Chemical compound C1=CC=C2C(=O)C(C/C=C(C)/CCC[C@H](C)CCC[C@H](C)CCCC(C)C)=C(C)C(=O)C2=C1 MBWXNTAXLNYFJB-NKFFZRIASA-N 0.000 description 2
- 235000019175 phylloquinone Nutrition 0.000 description 2
- 239000011772 phylloquinone Substances 0.000 description 2
- 229960001898 phytomenadione Drugs 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 102000015081 Blood Coagulation Factors Human genes 0.000 description 1
- 108010039209 Blood Coagulation Factors Proteins 0.000 description 1
- 206010053567 Coagulopathies Diseases 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 208000015294 blood coagulation disease Diseases 0.000 description 1
- 239000003114 blood coagulation factor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009852 coagulant defect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000002778 food additive Substances 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
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 229940025790 vitamin k 1 injection Drugs 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a workshop waste gas purification and discharge device, which relates to the technical field of waste gas purification and comprises a purification box, a waste gas inlet, a waste gas discharge port, an absorption assembly, a filtering assembly and a dehumidifying assembly, wherein the top wall of the purification box is provided with the waste gas discharge port, the side wall of the purification box is provided with two opposite waste gas inlets, the absorption assembly is arranged at the waste gas inlet, the filtering assembly is arranged at the outer side of the absorption assembly, the dehumidifying assembly is arranged at the top of the purification box, the absorption assembly comprises a fixed plate, a supporting block, a circulating pump and a circulating pipe, and the inner side wall of the purification box is fixedly connected with the two opposite fixed plates. Through setting up rotatory spraying structure can make the absorption liquid can all-round spray and waste gas fully react on the one hand, on the other hand forms the air current through rotatory, makes the waste gas that goes into can gather and let the absorption liquid fully absorb that sprays around rotatory spraying structure for exhaust gas purification effect is better.
Description
Technical Field
The utility model relates to the technical field of waste gas purification, in particular to a workshop waste gas purification and discharge device.
Background
Vitamin k1 is a raw material medicine of a national basic raw material medicine vitamin k1 injection, is an essential substance of intrahepatic synthetic coagulation factors, can cause coagulation disorder when lacking, and has the effects of pain relief and spasm relief. Vitamin K1 is used as a medical preparation, widely applied to clinical treatment and also can be used as a nutrition enhancer for multidimensional food and feed additives, and a plurality of chemical waste gases are generated in the vitamin K1 production process and are discharged after being purified, so that the chemical waste gases are prevented from damaging natural environment and damaging human bodies.
According to the bulletin number: CN213286269U relates to exhaust gas purification technical field, specifically indicates a chemical industry exhaust gas purification system, including the device body, the inside accommodation space that sets up of device body, device body top sets up the gas outlet, this internal waste gas absorption subassembly and the dehumidification subassembly of setting up of device, the both sides of device body lower part set up the air inlet respectively, waste gas absorption subassembly sets up to two sets of, two sets of waste gas absorption subassembly are close to two sets of respectively the air inlet sets up, two sets of waste gas absorption subassembly symmetry sets up, waste gas absorption subassembly includes shower head and collecting box, the shower head sets up the upside of collecting box. In the chemical waste gas purifying system of the above case, the absorption liquid is insufficient to absorb chemical substances in waste gas, and the waste gas which is not purified yet is discharged out of the purifying box.
Based on this, now provide a workshop exhaust gas purification discharging device, can eliminate the drawback that current device exists.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a workshop waste gas purifying and discharging device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a workshop exhaust purification discharging equipment, includes purifying box, waste gas air inlet, exhaust emission mouth has been seted up to purifying box top wall, two relative waste gas air inlets have been seted up to purifying box lateral wall, still include absorption subassembly, filter unit, dehumidification subassembly, absorption subassembly sets up in exhaust gas air inlet department, filter unit sets up in the absorption subassembly outside, dehumidification subassembly sets up at the purifying box top.
In one alternative: the absorption assembly comprises a fixed plate, supporting blocks, a circulating pump and a circulating pipe, wherein the rotary spraying structure is characterized in that the inner side wall of the purifying box is fixedly connected with two opposite fixed plates, the lower surfaces of the fixed plates are fixedly connected with the supporting blocks, the bottoms of the supporting blocks are respectively provided with the rotary spraying structure, one end of the circulating pipe is fixedly connected with the bottom wall of the purifying box in a penetrating manner, the other end of the circulating pipe sequentially penetrates through the fixed plate and the supporting blocks and is fixedly connected with the rotary spraying structure, and the circulating pump and the water inlet are arranged on the circulating pipe.
In one alternative: the rotary spraying structure comprises a rotary block, a motor, a water storage tank, a first rotary shaft and a second rotary shaft, wherein a motor groove is formed in the supporting block, the motor is fixedly connected with the inner side wall of the motor groove, the output end of the motor is fixedly connected with the first rotary shaft, the first rotary shaft is fixedly connected with the rotary block in a penetrating manner, a rotary cavity is formed in the rotary block, the first rotary shaft is located at one end of the rotary cavity in an interference fit manner, the second rotary shaft is connected with the opposite side wall of the rotary cavity in a penetrating manner through a bearing in a penetrating manner, the first bevel gear is meshed with the second bevel gear in an interference fit manner, the second bevel gear is meshed with the first bevel gear in a meshing manner, the two rotary shaft is far away from the water storage tank in an equal fixedly connected with one end of the first bevel gear, a plurality of water inlet holes are formed in the water storage tank, and a plurality of high-pressure spray heads are arranged at the side wall of the water storage tank.
In one alternative: the dehumidifying component comprises a polyester dry net which is fixedly connected with the inner side wall of the purifying box.
In one alternative: the filter assembly comprises a filter screen and a drain outlet, the filter screen is fixedly connected between the fixed plate and the bottom wall of the purifying box, the drain outlet is arranged on the bottom wall of the purifying box, and the drain outlet is provided with a valve.
In one alternative: a filtering baffle is arranged above the orifice of the circulating pipe.
In one alternative: a central passage is provided between the two sets of absorbent assemblies.
Compared with the prior art, the utility model has the advantages that:
Through setting up rotatory spraying structure including rotatory piece, a motor, the storage water tank, first rotation axis, the second rotation axis, open the motor, the motor drives first rotation axis and rotates, first rotation axis drives rotatory piece and rotates, rotatory piece drives the rotation on the storage water tank horizontal direction, first rotation axis drives second bevel gear and rotates, two first bevel gears are rotated to second bevel gear drive, first bevel gear drives the second rotation axis and rotates, the second rotation axis drives the storage water tank and carries out the ascending rotation of vertical direction, on the one hand can make the absorption liquid can all-round spray with waste gas fully reaction, with the chemical gas absorption in the waste gas, on the other hand forms the air current through the rotation, make the waste gas that goes into gather and let the absorption liquid abundant absorption that sprays around rotatory spraying structure for the exhaust purification effect is better.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a first view of the present utility model.
Fig. 3 is a second view of the present utility model.
Fig. 4 is a schematic view of the internal structure of the present utility model.
Fig. 5 is an enlarged view at a in fig. 4.
Reference numerals annotate: 1 purifying box, 3 exhaust gas discharge port, 4 polyester dry net, 5 exhaust gas inlet, 6 circulating pump, 7 drain, 8 filtering baffle, 9 fixed plate, 10 filter screen, 11 supporting block, 12 motor, 13 storage water tank, 14 high-pressure nozzle, 15 water inlet, 16 first bevel gear, 17 first rotation axis, 18 second rotation axis, 19 second bevel gear, 20 rotating cavity, 21 circulating pipe, 22 water inlet.
Description of the embodiments
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
Examples
In one embodiment, as shown in fig. 1-5, a workshop exhaust gas purifying and discharging device comprises a purifying box 1, an exhaust gas inlet 5 and an exhaust gas discharge port 3, wherein the exhaust gas discharge port 3 is formed in the top wall of the purifying box 1, two opposite exhaust gas inlet 5 are formed in the side wall of the purifying box 1, an absorbing component, a filtering component and a dehumidifying component are further included, the absorbing component is arranged at the exhaust gas inlet 5, the filtering component is arranged outside the absorbing component, and the dehumidifying component is arranged at the top of the purifying box 1. The absorption liquid in the absorption assembly is used for absorbing chemical gas in the waste gas and purifying the waste gas, the filtering assembly is used for intercepting large particles in the waste gas and discharging the large particles from the drain outlet 7 at the bottom, and the dehumidifying assembly is used for dehumidifying the purified waste gas and then discharging the dehumidified waste gas.
In one embodiment, as shown in fig. 4, the absorption assembly comprises a fixed plate 9, a supporting block 11, a circulating pump 6 and a circulating pipe 21, wherein the rotary spraying structure is formed by fixedly connecting two opposite fixed plates 9 on the inner side wall of the purifying tank 1, the supporting blocks 11 are fixedly connected to the lower surfaces of the two fixed plates 9, the rotary spraying structure is arranged at the bottoms of the two supporting blocks 11, one ends of the two circulating pipes 21 penetrate through the bottom wall of the purifying tank 1, the other ends of the circulating pipes 21 sequentially penetrate through the fixed plates 9 and the supporting blocks 11 and are fixedly connected with the rotary spraying structure, and the circulating pump 6 and the water inlet 22 are arranged on the circulating pipes 21. The circulating pump 6 and the circulating pipe 21 are matched, so that circulating liquid can circulate, the circulating liquid does not need to be added all the time, the absorption rate of the absorption liquid is improved, and the cost of overmuch use of the absorption liquid is reduced.
In one embodiment, as shown in fig. 4 and 5, the rotary spraying structure comprises a rotary block 2, a motor 12, a water storage tank 13, a first rotary shaft 17 and a second rotary shaft 18, a motor groove is formed in the support block 11, the motor 12 is fixedly connected to the inner side wall of the motor groove, the output end of the motor 12 is fixedly connected with the first rotary shaft 17, the first rotary shaft 17 is fixedly connected with the rotary block 2 in a penetrating manner, a rotary cavity 20 is formed in the rotary block 2, one end of the first rotary shaft 17 in the rotary cavity 20 is provided with a second bevel gear 19 in an interference fit manner, opposite side walls of the rotary cavity 20 are respectively connected with the second rotary shaft 18 in a penetrating manner through bearings, one ends of the two second rotary shafts 18 in the rotary cavity 20 are respectively provided with a first bevel gear 16 in an interference fit manner, the two first bevel gears 16 are meshed with the second bevel gears 19, one ends of the two rotary shafts 18 away from the first bevel gears 16 are respectively fixedly connected with the water storage tank 13, a plurality of water inlets 15 are formed in the water storage tank 13, and a plurality of high-pressure spray heads 14 are formed in the side walls of the water storage tank 13. The motor 12 is started, the motor 12 drives the first rotation shaft 17 to rotate, the first rotation shaft 17 drives the rotation block 2 to rotate, the rotation block 2 drives the rotation on the horizontal direction of the water storage tank 13, the first rotation shaft 17 drives the second bevel gears 19 to rotate, the second bevel gears 19 drive the two first bevel gears 16 to rotate, the first bevel gears 16 drive the second rotation shaft 18 to rotate, the second rotation shaft 18 drives the water storage tank 13 to rotate on the vertical direction, on one hand, absorption liquid can be sprayed in all directions to fully react with waste gas, chemical gas in the waste gas is absorbed, on the other hand, air flow is formed through rotation, the waste gas entering can be gathered around the rotary spraying structure, sprayed absorption liquid is fully absorbed, and therefore the waste gas purifying effect is better.
In one embodiment, as shown in fig. 4, the dehumidifying component comprises a polyester dry net 4, and the polyester dry net 4 is fixedly connected with the inner side wall of the purifying box 1. The polyester dry net 4 is used for drying and discharging the exhaust gas.
In one embodiment, as shown in fig. 4, the filter assembly comprises a filter screen 10 and a drain outlet 7, the filter screen 10 is fixedly connected between the fixing plate 9 and the bottom wall of the purifying box 1, the drain outlet 7 is arranged on the bottom wall of the purifying box 1, and the drain outlet 7 is provided with a valve. The filtering component intercepts large particles in the waste gas and discharges the large particles from a drain outlet 7 at the bottom.
Examples
In one embodiment, as shown in fig. 4, a filtering baffle 8 is disposed above the orifice of the circulation tube 21. Preventing large particles from clogging the circulation pipe 21.
In one embodiment, as shown in figure 4, a central channel is provided between the two sets of absorbent assemblies. So that the purified gas is discharged upward from the middle channel.
According to the utility model, the absorption liquid is added into the circulating pipe 21 from two groups of water inlets 22, the circulating pump 11 is started, when the added absorption liquid can circulate, the addition of the absorption liquid is stopped, the waste gas is sent into the purifying box 1 from the waste gas inlet 5, meanwhile, the motor 12 is started, the motor 12 drives the first rotating shaft 17 to rotate, the first rotating shaft 17 drives the rotating block 2 to rotate, the rotating block 2 drives the water storage tank 13 to rotate in the horizontal direction, the first rotating shaft 17 drives the second bevel gear 19 to rotate, the second bevel gear 19 drives the two first bevel gears 16 to rotate, the first bevel gear 16 drives the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the water storage tank 13 to rotate in the vertical direction, on one hand, the absorption liquid can fully react with the waste gas, the chemical gas in the waste gas is absorbed, on the other hand, the waste gas can be collected around the rotating spraying structure through the rotation to enable the sprayed absorption liquid to fully absorb the waste gas, the waste gas purifying effect is better, then large particles in the waste gas are dropped into the position 7 with the rotating block 10, the waste gas is discharged from the waste gas through the drain port 7, the waste gas is discharged from the waste gas purifying device through the drain port 4, and the waste gas is discharged from the waste gas purifying box 1 through the drain 1.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The workshop waste gas purifying and discharging device comprises a purifying box (1), a waste gas inlet (5) and a waste gas discharging port (3), wherein the top wall of the purifying box (1) is provided with the waste gas discharging port (3), and the side wall of the purifying box (1) is provided with two opposite waste gas inlets (5), and the device is characterized by further comprising an absorption component, a filtering component and a dehumidifying component, wherein the absorption component is arranged at the waste gas inlet (5), the filtering component is arranged outside the absorption component, and the dehumidifying component is arranged at the top of the purifying box (1);
The absorption assembly comprises a fixed plate (9), a supporting block (11), a circulating pump (6), a circulating pipe (21) and a rotary spraying structure, wherein two opposite fixed plates (9) are fixedly connected to the inner side wall of the purifying box (1), the lower surfaces of the fixed plates (9) are fixedly connected with the supporting block (11), the bottoms of the supporting blocks (11) are respectively provided with the rotary spraying structure, one end of the circulating pipe (21) is fixedly connected with the bottom wall of the purifying box (1) in a penetrating manner, the other end of the circulating pipe (21) sequentially penetrates through the fixed plates (9) and the supporting block (11) and is fixedly connected with the rotary spraying structure, and the circulating pump (6) and a water inlet (22) are arranged on the circulating pipe (21);
The rotary spraying structure comprises a rotary block (2), a motor (12), a water storage tank (13), a first rotary shaft (17) and a second rotary shaft (18), wherein a motor groove is formed in a supporting block (11), the inner side wall of the motor groove is fixedly connected with the motor (12), the output end of the motor (12) is fixedly connected with the first rotary shaft (17), the first rotary shaft (17) is fixedly connected with the rotary block (2) in a penetrating manner, a rotary cavity (20) is formed in the rotary block (2), a second bevel gear (19) is in interference fit with one end of the first rotary shaft (17) in the rotary cavity (20), the second rotary shaft (18) is connected to opposite side walls of the rotary cavity (20) in a penetrating manner through bearings, one end of the second rotary shaft (18) in the rotary cavity (20) is provided with a first bevel gear (16) in an interference fit manner, the first bevel gear (16) is meshed with the second bevel gear (19), and one end of the rotary shaft (18) away from the first bevel gear (16) is fixedly connected with the water storage tank (13).
2. The workshop waste gas purifying and discharging device according to claim 1, wherein a plurality of water inlets (15) are formed in the water storage tank (13), and a plurality of high-pressure spray heads (14) are arranged on the side wall of the water storage tank (13).
3. The workshop exhaust gas purifying and discharging device according to claim 1, wherein the dehumidifying component comprises a polyester dry net (4), and the polyester dry net (4) is fixedly connected with the inner side wall of the purifying box (1).
4. The workshop exhaust gas purification and emission device according to claim 1, wherein the filtering assembly comprises a filter screen (10) and a drain outlet (7), the filter screen (10) is fixedly connected between the fixing plate (9) and the bottom wall of the purification box (1), the drain outlet (7) is arranged on the bottom wall of the purification box (1), and the drain outlet (7) is provided with a valve.
5. A plant exhaust gas purification and discharge device according to claim 1, characterized in that a filtering baffle (8) is arranged above the orifice of the circulation pipe (21).
6. The plant exhaust gas purifying and discharging apparatus according to claim 1, wherein a middle passage is provided between two groups of said absorption units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322408049.8U CN220834906U (en) | 2023-09-06 | 2023-09-06 | Workshop exhaust purification discharging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322408049.8U CN220834906U (en) | 2023-09-06 | 2023-09-06 | Workshop exhaust purification discharging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220834906U true CN220834906U (en) | 2024-04-26 |
Family
ID=90784065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322408049.8U Active CN220834906U (en) | 2023-09-06 | 2023-09-06 | Workshop exhaust purification discharging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220834906U (en) |
-
2023
- 2023-09-06 CN CN202322408049.8U patent/CN220834906U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114849450A (en) | Waste gas treatment device | |
| CN217464735U (en) | Intelligence house air humidifying device with dust removal function | |
| CN220834906U (en) | Workshop exhaust purification discharging equipment | |
| CN213286277U (en) | VOC organic waste gas treatment recovery unit | |
| CN207085586U (en) | A kind of filtration, purification system | |
| CN110538565A (en) | Smoke whitening treatment device for glass firing plant | |
| CN203874626U (en) | Dual-inlet tail-gas purification absorption device | |
| CN109876646A (en) | A kind of environmental protection chemical industry deodorizing device | |
| CN210215022U (en) | Cross-flow type washing circulating water all-in-one machine | |
| CN213853884U (en) | Novel horizontal structure biological deodorization filter bed device | |
| CN209464754U (en) | A kind of exhaust processor | |
| CN218944679U (en) | Workshop tail gas purification and emission device | |
| CN209501269U (en) | A kind of organized waste gas absorption tower | |
| CN113318553A (en) | Flue gas purification device for rubber processing | |
| CN217646110U (en) | Pneumatic rotational flow spray tower | |
| CN218924289U (en) | Waste gas neutralization device | |
| CN220618783U (en) | Compost deodorizing device | |
| CN210584401U (en) | Activated carbon adsorption box | |
| CN219722375U (en) | Tannin extract production waste gas treatment device | |
| CN216023942U (en) | Desulfurization and denitrification device for industrial gas treatment | |
| CN220939963U (en) | Industrial waste gas treatment device | |
| CN213699274U (en) | A dust collecting equipment for animal remedy production | |
| CN214680687U (en) | Air purification device for medicine processing | |
| CN220558905U (en) | Be applied to industrial waste gas's absorbing device | |
| CN221673855U (en) | Spraying mechanism of industrial waste gas treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |