CN220968321U - Multistage filtering device for sewage treatment - Google Patents
Multistage filtering device for sewage treatment Download PDFInfo
- Publication number
- CN220968321U CN220968321U CN202322431644.3U CN202322431644U CN220968321U CN 220968321 U CN220968321 U CN 220968321U CN 202322431644 U CN202322431644 U CN 202322431644U CN 220968321 U CN220968321 U CN 220968321U
- Authority
- CN
- China
- Prior art keywords
- block
- assembly
- filter
- box body
- wall
- 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
- 238000001914 filtration Methods 0.000 title claims abstract description 37
- 239000010865 sewage Substances 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000012535 impurity Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 102000005650 Notch Receptors Human genes 0.000 description 18
- 108010070047 Notch Receptors Proteins 0.000 description 18
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model relates to the technical field of sewage treatment equipment, and provides a multi-stage filtering device for sewage treatment, which comprises a box body; the filter assembly is arranged in the box body; the anti-blocking mechanism is arranged on the box body and comprises a driving assembly, a reciprocating assembly and an anti-blocking assembly; the anti-blocking assembly comprises a movable frame, the outer surface of the movable frame is movably sleeved with the inner wall of the box body, a hairbrush block is fixedly arranged at the bottom of the movable frame, and the lower end of the hairbrush block is movably connected with the filtering assembly. According to the utility model, the hairbrush blocks, the frame body and the inserted link are arranged, and due to the operation of the driving motor, the rotating rod drives the inserted link to rotate through the disc, and the inserted link drives the hairbrush blocks to reciprocate through the frame body and the moving frame, so that the hairbrush blocks wipe the filter plate back and forth, the filter plate is prevented from being blocked by accumulation of filtered sewage impurities, and the purpose of simultaneously preventing multi-stage filtration blocking is achieved.
Description
Technical Field
The utility model relates to the technical field of sewage treatment equipment, in particular to a multi-stage filtering device for sewage treatment.
Background
The sewage is discharged water from life and production and loses the water with original use functions, at present, when the sewage is subjected to multistage filtration treatment, a plurality of filter structures with different apertures are generally adopted to carry out multistage filtration on the sewage, and after the multistage filtration structure in the prior art is used for a long time, a large amount of sundries are easily accumulated on the surface of the filter screen plate, so that the filter plate is easily blocked by the accumulated large amount of sundries, the filtering effect of the filter plate is possibly affected, and the use effect of multistage filtration equipment in the prior art is reduced, and therefore, the multistage filtration structure needs to be improved.
Disclosure of utility model
The utility model provides a multistage filtering device for sewage treatment, which solves the problem of multistage filtering blockage prevention in the related art.
The technical scheme of the utility model is as follows:
In order to achieve the above purpose, the present utility model provides the following technical solutions: a multi-stage filter for sewage treatment comprises
A case;
the filter assembly is arranged in the box body;
The anti-blocking mechanism is arranged on the box body and comprises a driving assembly, a reciprocating assembly and an anti-blocking assembly;
the anti-blocking assembly comprises a movable frame, the outer surface of the movable frame is movably sleeved with the inner wall of the box body, a hairbrush block is fixedly arranged at the bottom of the movable frame, the lower end of the hairbrush block is movably connected with the filtering assembly, and the movable frame is in transmission connection with the driving assembly through the reciprocating assembly.
As a preferable technical scheme of the utility model, the reciprocating assembly comprises a disc, an inserting rod and a frame body;
One end of the inserted link is fixedly connected with the disc, the other end of the inserted link extends to the inside of the frame body and is movably sleeved with the inner wall of the frame body, and the side face of the frame body is fixedly connected with the side face of the movable frame.
As a preferable technical scheme of the utility model, the driving component comprises a driving motor and a rotating rod;
The outer surface of driving motor is fixed cup joint with the inner wall of box, driving motor is connected with the rotary rod transmission, the other end of rotary rod extends to the inside of disc and is fixed cup joint with the inner wall of disc.
As a preferable technical scheme of the utility model, the filter assembly comprises a filter plate, a stop block, a handle and a notch block;
The surface of dog and notch piece all cup joints with the inner wall activity of box, the one end and the dog fixed connection of filter, the other end and the notch piece fixed connection of filter, the side of handle and the side fixed connection of notch piece, the side of filter cup joints with the inner wall activity of box, the quantity of filter is three, three the filtration size from the top down of filter diminishes gradually.
As a preferable technical scheme of the utility model, the utility model also comprises a water inlet and outlet component;
The water inlet and outlet assembly comprises a water inlet pipe and a water outlet pipe;
The outer surface of the water inlet pipe is fixedly sleeved with the inner part of the upper end of the box body, and the outer surface of the water outlet pipe is fixedly sleeved with the inner part of the lower end of the box body.
As a preferable technical scheme of the utility model, the utility model also comprises a fixed closing mechanism;
the fixed sealing mechanism comprises a control assembly and a sealing and fixing assembly;
Wherein the sealing and fixing device comprises a cavity, a sealing block and a side block;
The cavity sets up in the inside of box, the surface of closing the piece cup joints with the inner wall activity of cavity, the lower extreme of closing the piece extends to the inside of notch piece and cup joints with the inner wall activity of notch piece, the side of side piece and the side fixed connection of closing the piece, the other end of side piece is located the outside of box, and the closing piece passes through side piece and is connected with the control assembly transmission.
As a preferable technical scheme of the utility model, the control assembly comprises a moving block, a brake motor, a fixed block, a rotating rod and a threaded rod;
The side of fixed block and the side fixed connection of box, the top of fixed block and the bottom fixed connection of brake motor, brake motor is connected with the dwang transmission, the lower extreme of dwang runs through the fixed block and with threaded rod fixed connection, the lower extreme of threaded rod runs through the movable block in proper order and cup joints with the inner wall screw thread of movable block, the side of movable block and the side fixed connection of side piece.
As a preferable technical scheme of the utility model, the left end and the right end of the bottom of the filter plate are movably connected with bottom blocks, and the side surfaces of the bottom blocks are fixedly connected with the inner wall of the box body.
The working principle and the beneficial effects of the utility model are as follows:
1. According to the utility model, the hairbrush blocks, the frame body and the inserted link are arranged, and due to the operation of the driving motor, the rotating rod drives the inserted link to rotate through the disc, and the inserted link drives the hairbrush blocks to reciprocate through the frame body and the moving frame, so that the hairbrush blocks wipe the filter plate back and forth, the filter plate is prevented from being blocked by accumulation of filtered sewage impurities, and the purpose of simultaneously preventing multi-stage filtration blocking is achieved.
2. According to the utility model, the notch block, the sealing block and the threaded rod are arranged, and due to the operation of the brake motor, the rotating rod drives the threaded rod to rotate, and the threaded rod drives the plurality of side blocks to move along the inner wall of the cavity through the moving block, so that the lower ends of the side blocks driving the sealing block move to the inside of the notch block to be fixedly sealed, the purpose of simultaneously fixing and sealing the filter plates is achieved, and an operator does not need to sequentially fix and seal the filter plates.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the rear cross-sectional structure of the present utility model;
FIG. 3 is a schematic side cross-sectional view of the present utility model;
FIG. 4 is a schematic view of the structure of the closing block of the present utility model;
Fig. 5 is a schematic view of a partial enlarged structure at a in fig. 3.
In the figure: 1. a case; 2. a water inlet pipe; 3. a drain pipe; 4. a filter plate; 5. a stop block; 6. a notch block; 7. a handle; 8. a brush block; 9. a moving rack; 10. a frame; 11. a disc; 12. a rod; 13. a driving motor; 14. a rotating rod; 15. a bottom block; 16. a cavity; 17. a closing block; 18. a side block; 19. a moving block; 20. a brake motor; 21. a fixed block; 22. a rotating lever; 23. a threaded rod.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.
Example 1
As shown in fig. 1 to 5, the present embodiment also proposes to include, based on the same concept as embodiment 1 described above
A case 1;
a filter assembly provided inside the case 1;
The anti-blocking mechanism is arranged on the box body 1 and comprises a driving assembly, a reciprocating assembly and an anti-blocking assembly;
wherein, prevent blockking up subassembly is including removing frame 9, and the surface of removing frame 9 cup joints with the inner wall activity of box 1, and the bottom fixed mounting who removes frame 9 has brush piece 8, and the lower extreme and the filtration subassembly swing joint of brush piece 8 remove frame 9 and be connected with the drive assembly transmission through reciprocating assembly.
In this embodiment, through starting drive assembly to will make reciprocal subassembly drive a plurality of brush pieces 8 reciprocating motion through removing frame 9, and then will make brush piece 8 make a round trip to clean the filtration sewage impurity on the filter 4, in order to prevent that filtration sewage impurity from piling up and blocking filter 4, thereby reached the purpose that prevents multistage filtration jam simultaneously.
Example 2
As shown in fig. 2, based on the same concept as that of the above embodiment 1, the present embodiment also proposes that the reciprocating assembly includes a disc 11, a plunger 12 and a frame 10;
one end of the inserted link 12 is fixedly connected with the disc 11, the other end of the inserted link 12 extends into the frame 10 and is movably sleeved with the inner wall of the frame 10, and the side surface of the frame 10 is fixedly connected with the side surface of the movable frame 9.
In this embodiment, due to the design of the disc 11, the insert rod 12 and the frame 10, when the disc 11 rotates, the disc 11 drives the insert rod 12 to move along the inner wall of the frame 10, and the disc 11 drives the frame 10 to reciprocate through the insert rod 12.
Example 3
As shown in fig. 3, based on the same concept as embodiment 1 described above, the present embodiment also proposes that the driving assembly includes a driving motor 13 and a rotating lever 14;
The outer surface of the driving motor 13 is fixedly sleeved with the inner wall of the box body 1, the driving motor 13 is in transmission connection with the rotating rod 14, and the other end of the rotating rod 14 extends to the inner part of the disc 11 and is fixedly sleeved with the inner wall of the disc 11.
In this embodiment, the rotation rod 14 drives the disc 11 to rotate along the side of the case 1 by operating the driving motor 13.
Example 4
As shown in fig. 3, based on the same concept as the above embodiment 1, the present embodiment also proposes that the filter assembly includes a filter plate 4, a stopper 5, a handle 7, and a notch block 6;
The surface of dog 5 and notch piece 6 all cup joints with the inner wall activity of box 1, and the one end and the dog 5 fixed connection of filter 4, the other end and the notch piece 6 fixed connection of filter 4, the side of handle 7 and the side fixed connection of notch piece 6, the side and the inner wall activity of box 1 cup joint of filter 4, and the quantity of filter 4 is three, and the filtration size from the top down of three filter becomes gradually smaller.
In this embodiment, the design of the three filter plates 4 enables the device to perform multistage filtration on sewage.
Example 5
As shown in fig. 3, based on the same concept as that of the above embodiment 1, this embodiment also proposes to further include a water inlet and outlet assembly;
Wherein, the water inlet and outlet assembly comprises a water inlet pipe 2 and a water outlet pipe 3;
The outer surface of the water inlet pipe 2 is fixedly sleeved with the inner part of the upper end of the box body 1, and the outer surface of the water outlet pipe 3 is fixedly sleeved with the inner part of the lower end of the box body 1.
In this embodiment, through the design of inlet tube 2 and drain pipe 3 to make sewage can be through the inside multistage filtration of filter 4 of inlet tube 2 leading-in box 1, follow-up processing is carried out in the discharge of drain pipe 3.
Example 6
As shown in fig. 5, based on the same concept as that of the above embodiment 1, this embodiment also proposes to further include a fixed closing mechanism;
the fixed sealing mechanism comprises a control assembly and a sealing and fixing assembly;
Wherein the sealing fixation comprises a cavity 16, a sealing block 17 and a side block 18;
The cavity 16 sets up in the inside of box 1, and the surface of closing piece 17 cup joints with the inner wall activity of cavity 16, and the lower extreme of closing piece 17 extends to notch piece 6 inside and cup joints with notch piece 6 inner wall activity, and the side of side piece 18 and the side fixed connection of closing piece 17, and the other end of side piece 18 is located the outside of box 1, and closing piece 17 passes through side piece 18 and is connected with control assembly transmission.
In this embodiment, by starting the control component, the moving block 19 drives the plurality of side blocks 18 to move along the inner wall of the cavity 16, and then the side blocks 18 drive the lower end of the sealing block 17 to move to the inside of the notch block 6 for fixing and sealing, thereby achieving the purpose of fixing and sealing the filter plate 4 at the same time.
Example 7
As shown in fig. 1, based on the same concept as that of the above embodiment 1, the present embodiment also proposes that the control assembly includes a moving block 19, a brake motor 20, a fixed block 21, a rotating rod 22, and a threaded rod 23;
The side of fixed block 21 and the side fixed connection of box 1, the top of fixed block 21 and the bottom fixed connection of brake motor 20, brake motor 20 and dwang 22 transmission are connected, and dwang 22's lower extreme runs through fixed block 21 and with threaded rod 23 fixed connection, threaded rod 23's lower extreme runs through movable block 19 in proper order and cup joints with movable block 19's inner wall screw thread, and movable block 19's side and side 18's side fixed connection.
In this embodiment, the rotation of the rotating rod 22 drives the threaded rod 23 through the operation of the brake motor 20, so that the threaded rod 23 drives the side block 18 to move through the moving block 19.
Example 8
As shown in fig. 4, based on the same concept as that of the above embodiment 1, this embodiment also proposes that the left and right ends of the bottom of the filter plate 4 are movably connected with bottom blocks 15, and the side surfaces of the bottom blocks 15 are fixedly connected with the inner wall of the box 1.
In this embodiment, through the design of the bottom block 15, the bottom block 15 supports and limits the whole filter plate 4 through the box 1, so that the whole filter plate 4 is more stable in use.
The working principle and the using flow of the utility model are as follows:
Firstly, the operator puts the filter plates 4 with different apertures into the bottom block 15 inside the box body 1 through the handle 7 and the notch block 6 in sequence, and the operator starts the brake motor 20 and runs through the brake motor 20, so that the rotating rod 22 drives the threaded rod 23 to rotate, and then the threaded rod 23 drives the side blocks 18 to move through the moving block 19, so that the side blocks 18 drive the lower ends of the sealing blocks 17 to move to the inside of the notch block 6 for fixing and sealing, and the purpose of simultaneously fixing and sealing the filter plates 4 is achieved through the design, so that the operator does not need to sequentially fix and seal the filter plates 4.
Then operating personnel alright with sewage through the inside multistage filtration of inlet tube 2 leading-in box 1 through filter 4, follow-up processing is carried out in discharge pipe 3, operating personnel is through start driving motor 13 this moment, through driving motor 13's operation, thereby will make rotary rod 14 drive disc 11 and take place the rotation along the side of box 1, and then will make disc 11 drive inserted bar 12 and take place to remove along the inner wall of box 10, thereby make disc 11 drive box 10 through inserted bar 12 and take place reciprocating motion, and then make box 10 drive a plurality of brush piece 8 reciprocating motion through movable frame 9, thereby will make brush piece 8 make a round trip to clean the filtration sewage impurity on the filter 4, in order to prevent filtration sewage impurity to pile up and jam filter 4, thereby the purpose that prevents multistage filtration jam simultaneously has been reached.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. A multistage filtering device for sewage treatment is characterized by comprising
A case (1);
a filter assembly provided inside the case (1);
The anti-blocking mechanism is arranged on the box body (1) and comprises a driving assembly, a reciprocating assembly and an anti-blocking assembly;
The anti-blocking assembly comprises a movable frame (9), the outer surface of the movable frame (9) is movably sleeved with the inner wall of the box body (1), a hairbrush block (8) is fixedly arranged at the bottom of the movable frame (9), the lower end of the hairbrush block (8) is movably connected with the filtering assembly, and the movable frame (9) is in transmission connection with the driving assembly through a reciprocating assembly.
2. A multi-stage filtration device for sewage treatment according to claim 1, wherein: the reciprocating assembly comprises a disc (11), a plug rod (12) and a frame body (10);
One end of the inserted link (12) is fixedly connected with the disc (11), the other end of the inserted link (12) extends to the inside of the frame body (10) and is movably sleeved with the inner wall of the frame body (10), and the side face of the frame body (10) is fixedly connected with the side face of the movable frame (9).
3. A multi-stage filtration device for sewage treatment according to claim 1, wherein: the driving assembly comprises a driving motor (13) and a rotating rod (14);
The outer surface of the driving motor (13) is fixedly sleeved with the inner wall of the box body (1), the driving motor (13) is in transmission connection with the rotating rod (14), and the other end of the rotating rod (14) extends to the inner part of the disc (11) and is fixedly sleeved with the inner wall of the disc (11).
4. A multi-stage filtration device for sewage treatment according to claim 1, wherein: the filter assembly comprises a filter plate (4), a stop block (5), a handle (7) and a notch block (6);
The utility model discloses a filter, including box (1) and filter, the surface of dog (5) and notch piece (6) all cup joints with the inner wall activity of box (1), the one end and the dog (5) fixed connection of filter (4), the other end and the notch piece (6) fixed connection of filter (4), the side of handle (7) and the side fixed connection of notch piece (6), the side of filter (4) cup joints with the inner wall activity of box (1), the quantity of filter (4) is three, three the filter size from the top down of filter (4) diminishes gradually.
5. A multi-stage filtration device for sewage treatment according to claim 1, wherein: the water inlet and outlet assembly is also included;
Wherein, the water inlet and outlet assembly comprises a water inlet pipe (2) and a water outlet pipe (3);
The outer surface of the water inlet pipe (2) is fixedly sleeved with the inside of the upper end of the box body (1), and the outer surface of the water outlet pipe (3) is fixedly sleeved with the inside of the lower end of the box body (1).
6. A multi-stage filtration device for sewage treatment according to claim 1, wherein: the device also comprises a fixed closing mechanism;
the fixed sealing mechanism comprises a control assembly and a sealing and fixing assembly;
Wherein the sealing fixation comprises a cavity (16), a sealing block (17) and a side block (18);
The cavity (16) is arranged in the box body (1), the outer surface of the sealing block (17) is movably sleeved with the inner wall of the cavity (16), the lower end of the sealing block (17) extends to the inside of the notch block (6) and is movably sleeved with the inner wall of the notch block (6), the side face of the side block (18) is fixedly connected with the side face of the sealing block (17), the other end of the side block (18) is positioned outside the box body (1), and the sealing block (17) is in transmission connection with the control assembly through the side block (18).
7. The multi-stage filtration device for sewage treatment according to claim 6, wherein: the control assembly comprises a moving block (19), a brake motor (20), a fixed block (21), a rotating rod (22) and a threaded rod (23);
The side of fixed block (21) and the side fixed connection of box (1), the top of fixed block (21) and the bottom fixed connection of brake motor (20), brake motor (20) and dwang (22) transmission are connected, the lower extreme of dwang (22) runs through fixed block (21) and with threaded rod (23) fixed connection, the lower extreme of threaded rod (23) runs through movable block (19) in proper order and cup joints with the inner wall screw thread of movable block (19), the side of movable block (19) and the side fixed connection of side piece (18).
8. The multi-stage filtration device for sewage treatment according to claim 4, wherein: the left end and the right end of the bottom of the filter plate (4) are both movably connected with bottom blocks (15), and the side surfaces of the bottom blocks (15) are fixedly connected with the inner wall of the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322431644.3U CN220968321U (en) | 2023-09-07 | 2023-09-07 | Multistage filtering device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322431644.3U CN220968321U (en) | 2023-09-07 | 2023-09-07 | Multistage filtering device for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220968321U true CN220968321U (en) | 2024-05-17 |
Family
ID=91036890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322431644.3U Active CN220968321U (en) | 2023-09-07 | 2023-09-07 | Multistage filtering device for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220968321U (en) |
-
2023
- 2023-09-07 CN CN202322431644.3U patent/CN220968321U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211462571U (en) | Weaving workshop weaving dirt collecting device | |
| CN113368580A (en) | Sewage treatment equipment | |
| CN109603240A (en) | A kind of bio-pharmaceuticals filter plant being conveniently replaceable filter layer | |
| CN112727810A (en) | Cleaning device is changed to water pump water inlet filter screen | |
| CN112237803A (en) | In-car air filtering device for new energy automobile | |
| CN220968321U (en) | Multistage filtering device for sewage treatment | |
| CN218794129U (en) | Filter box with filtering capability | |
| CN218076648U (en) | Environment-friendly sewage treatment device | |
| CN216395463U (en) | Basket filter of high stability | |
| CN217043851U (en) | Visual oil smoke pipeline belt cleaning device | |
| CN211200629U (en) | Prevent blockking up drain pipe for sewage treatment | |
| CN214829425U (en) | Integrated unit water treatment operating device | |
| CN115317973A (en) | Medical wastewater disinfection treatment facility that can waste material separation | |
| CN213221291U (en) | Dust collector of dust bag | |
| CN210845416U (en) | Integrated equipment for eutrophic water treatment | |
| CN213942288U (en) | Water filter with multiple filtering mechanism | |
| CN218980632U (en) | Sewage treatment filter equipment | |
| CN218306715U (en) | Filtering and impurity removing device for production and processing of air conditioner cleaning agent | |
| CN220642649U (en) | Agricultural sewage purification device | |
| CN215516999U (en) | Multifunctional environment-friendly sewage treatment device | |
| CN219638012U (en) | Water diversion device for hydraulic engineering construction | |
| CN110193226A (en) | A kind of waste water control exclusion device | |
| CN218011352U (en) | Automatic cleaning device of sewage treatment structures | |
| CN218880775U (en) | Water inlet water purification mechanism for hydraulic engineering | |
| CN220328200U (en) | Flue gas desulfurization and denitrification treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |