CN111760347A - Medical treatment is with medical effluent treatment plant - Google Patents
Medical treatment is with medical effluent treatment plant Download PDFInfo
- Publication number
- CN111760347A CN111760347A CN202010634724.7A CN202010634724A CN111760347A CN 111760347 A CN111760347 A CN 111760347A CN 202010634724 A CN202010634724 A CN 202010634724A CN 111760347 A CN111760347 A CN 111760347A
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- treatment
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 22
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 6
- 235000011613 Pinus brutia Nutrition 0.000 claims description 6
- 241000018646 Pinus brutia Species 0.000 claims description 6
- 241001113556 Elodea Species 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 2
- 239000002351 wastewater Substances 0.000 abstract description 65
- 239000012535 impurity Substances 0.000 abstract description 15
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 16
- 239000010865 sewage Substances 0.000 description 7
- 208000034699 Vitreous floaters Diseases 0.000 description 6
- 239000002906 medical waste Substances 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 208000032420 Latent Infection Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 208000037771 disease arising from reactivation of latent virus Diseases 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
- B01D29/031—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting with corrugated, folded filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2221/00—Applications of separation devices
- B01D2221/10—Separation devices for use in medical, pharmaceutical or laboratory applications, e.g. separating amalgam from dental treatment residues
Abstract
The invention discloses a medical wastewater treatment device for medical treatment, which comprises a treatment box, wherein two sides of the outer wall of the top of the treatment box are fixedly connected with fixed shafts, the outer walls of the tops of the two fixed shafts are fixedly connected with a water storage tank, the outer wall of the top of the water storage tank is provided with a water inlet, the inner wall of the water inlet is provided with a water inlet pipe, the inner walls of the two opposite sides of the water inlet pipe are fixedly connected with a plurality of baffles, the baffles are wavy, the outer wall of one side of each baffle is provided with a plurality of first barbs, the inner wall of the treatment box is connected with a second filter screen through hinges, and the outer wall of the top of the treatment box and the. The invention can prevent impurities in the wastewater from accumulating together to block the interior of the device, can prevent the impurities from blocking the interior of the device, can perform shunting treatment on medical wastewater, and can improve the treatment efficiency of the device on the wastewater.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a medical treatment wastewater treatment device.
Background
The medical sewage is mainly sewage discharged from diagnosis and treatment rooms, laboratory rooms, sickrooms, laundries, X-ray photography rooms, operating rooms and the like of hospitals, the source and the components of the sewage are very complex, the hospital sewage contains a large amount of pathogenic bacteria, viruses and chemical agents, and has the characteristics of space pollution, acute infection and latent infection, and when the medical sewage is discharged, a medical sewage treatment device is required to be used for treating the sewage.
Through the retrieval, chinese patent is granted No. CN 209128178U's patent, discloses a medical wastewater treatment device, including smashing the case, the first motor of upper end fixedly connected with of smashing the case, the lower extreme fixedly connected with pivot of first motor, the fixed surface of pivot is connected with the blade, the lower extreme of smashing the case rotates and has cup jointed the transfer line, the upper end fixedly connected with centrifuge bowl of transfer line, centrifuge bowl's surface is equipped with the through-hole, the lower extreme fixedly connected with second motor of transfer line, smash the first discharging pipe of the right side fixedly connected with of case, the right-hand member fixedly connected with disinfect box of first discharging pipe. One medical wastewater treatment device in the above patent has the following disadvantages: when the existing device is used for treating medical wastewater, wastewater is usually filtered, and when the wastewater is filtered, impurities in the wastewater can be accumulated together due to the fact that the flowing speed of the wastewater is high, so that the treatment efficiency of the wastewater is influenced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a medical wastewater treatment device for medical use.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a medical treatment is with medical wastewater treatment device, is including handling the case, the equal fixedly connected with fixed axle in both sides of handling the case top outer wall, and the equal fixedly connected with storage water tank of top outer wall of two fixed axles, the water inlet has been seted up to the top outer wall of storage water tank, and the inner wall of water inlet is provided with the inlet tube, a plurality of baffles of the equal fixedly connected with of both sides inner wall that the inlet tube is relative, and the shape of baffle is the wave, one side outer wall of baffle is provided with a plurality of first barbs, the inner wall of handling the case has the second filter screen through hinged joint, a plurality of openings have all been seted up to the top outer wall of handling the case and the bottom outer wall of storage water tank, and be provided with the pipe.
Furthermore, a rotating shaft is rotatably connected between the inner walls of two opposite sides of the water storage tank through a bearing, and a plurality of filter blades are fixedly connected to the outer wall of the rotating shaft.
Furthermore, the outer walls of the two sides of the filter blade are provided with second barbs, and the second barbs are in a shape of waterweed.
Furthermore, both sides of the inner wall of the bottom of the water storage tank are fixedly connected with arc-shaped plates.
Further, the inner wall fixedly connected with backup pad of handling the case, and the both sides of backup pad top outer wall have all been seted up and have been led the mouth, lead the first filter screen of inner wall fixedly connected with of mouth.
Furthermore, the outer wall of the top of the supporting plate is fixedly connected with a flow distribution plate, and the shape of the flow distribution plate is similar to that of a pine tree.
Furthermore, the two sides of the outer wall of the bottom of the supporting plate are both connected with a drainage plate through hinges, and a spring is fixedly connected between the drainage plate and the supporting plate.
Further, handle the equal fixedly connected with baffle of the relative both sides inner wall of case, and the shape of baffle is the echelonment, handles the both sides of bottom of the case inner wall and has all seted up the outlet, and the outlet is located the below of baffle.
Further, the outer wall of one side of handling the case and the outer wall of one side of storage water tank have all seted up the clearance mouth, and the inner wall of one side of two clearance mouths all has sealed lid through hinged joint.
Furthermore, a filter plate is fixedly connected between the inner walls of the two opposite sides of the water storage tank, the filter plate is wavy, and the filter plate is located below the second filter screen.
The invention has the beneficial effects that:
1. the medical wastewater can be blocked by the wavy baffle and the first barb, so that the flowing speed of the wastewater is reduced, the wastewater is filtered, the phenomenon that impurities in the wastewater are accumulated together due to the fact that the flowing speed of the wastewater is high is prevented, the interior of the device is blocked, the treatment efficiency of the wastewater is further influenced, and the impurities in the wastewater can be primarily filtered by the first barb;
2. through the arranged rotating shaft, the filtering blades and the waterweed-shaped second barbs, the filtering blades are driven to rotate through gravitational potential energy generated when the wastewater falls, so that the wastewater is stirred through the rotation of the filtering blades, the blockage of impurities in the device is prevented, and floaters doped in the wastewater can be wound through the waterweed-shaped second barbs, so that the floaters can be treated;
3. the medical wastewater can be subjected to diversion treatment through the arranged diversion plate so as to be convenient for filtering treatment of the medical wastewater, the shape of the diversion plate is similar to that of a pine tree, and impurities in the wastewater can be blocked while the flowing speed of the wastewater is slowed down so as to improve the treatment efficiency of the device on the wastewater;
4. through the ladder-shaped guide plate, the wastewater can be filtered for many times, so that the treatment efficiency of the device on the wastewater is improved.
Drawings
FIG. 1 is a schematic sectional view showing a medical wastewater treatment apparatus according to example 1;
FIG. 2 is a schematic view of the structure at A of a medical wastewater treatment apparatus according to example 1;
FIG. 3 is a schematic view showing the overall construction of a medical wastewater treatment apparatus for medical use as set forth in example 1;
FIG. 4 is a schematic sectional view showing a medical wastewater treatment apparatus according to example 2.
In the figure: 1 treatment box, 2 filtration holes, 3 water outlets, 4 guide plates, 5 drainage plates, 6 springs, 7 first filter screens, 8 support plates, 9 flow distribution plates, 10 guide pipes, 11 fixing shafts, 12 water storage tanks, 13 second filter screens, 14 rotating shafts, 15 filter blades, 16 water inlet pipes, 17 baffle plates, 18 first barbs, 19 arc-shaped plates, 20 second barbs, 21 sealing covers and 22 filter plates.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, a medical treatment is with medical wastewater treatment device, including handling case 1, the both sides of handling 1 top outer wall of case all have fixed axle 11 through bolted connection, and the top outer wall of two fixed axles 11 all have storage water tank 12 through bolted connection, the water inlet has been seted up to the top outer wall of storage water tank 12, and the inner wall of water inlet is provided with inlet tube 16, the both sides inner wall that inlet tube 16 is relative all has a plurality of baffles 17 through bolted connection, and baffle 17's shape is the wave, one side outer wall of baffle 17 is provided with a plurality of first barbs 18, the inner wall of handling case 1 has second filter screen 13 through hinged joint, a plurality of openings have all been seted up to the top outer wall of handling case 1 and the bottom outer wall of storage water tank 12, and be provided with pipe 10 between two upper and lower openings, a.
Wherein, the inner walls of two opposite sides of the water storage tank 12 are rotatably connected with a rotating shaft 14 through a bearing, and the outer wall of the rotating shaft 14 is connected with a plurality of filter blades 15 through bolts.
Wherein, the outer walls of both sides of the filter blade 15 are provided with second barbs 20, and the shape of the second barbs 20 is a float grass shape.
Wherein, the two sides of the inner wall of the bottom of the water storage tank 12 are connected with arc plates 19 through bolts.
Wherein, the inner wall of handling case 1 has backup pad 8 through bolted connection, and the both sides of 8 top outer walls of backup pad have all been seted up and have been led the mouth, and the inner wall that leads the mouth has first filter screen 7 through bolted connection.
Wherein, the outer wall of the top of the supporting plate 8 is connected with a splitter plate 9 through a bolt, and the shape of the splitter plate 9 is similar to that of a pine tree.
Wherein, there is drainage plate 5 both sides of 8 bottom outer walls of backup pad through hinged joint, and has spring 6 through bolted connection between drainage plate 5 and the backup pad 8.
Wherein, the relative both sides inner wall of handling case 1 all has baffle 4 through bolted connection, and the shape of baffle 4 is the echelonment, handles the both sides of case 1 bottom inner wall and all seted up outlet 3, and outlet 3 is located the below of baffle 4.
Wherein, the clearance mouth has all been seted up to one side outer wall of handling case 1 and one side outer wall of storage water tank 12, and the one side inner wall of two clearance mouths all has sealed lid 21 through hinged joint.
The working principle is as follows: when in use, the medical wastewater is contained into the device through the water inlet pipe 16, the medical wastewater can be blocked through the wave-shaped baffle 17 so as to slow down the flow speed of the wastewater, thereby performing filtration treatment on the wastewater, preventing impurities in the wastewater from being accumulated together due to the high flow speed of the wastewater, further causing blockage inside the device and further affecting the treatment efficiency of the wastewater, the impurities in the wastewater can be primarily filtered through the first barbs 18, the filter blades 15 are driven to rotate through the gravitational potential energy generated when the wastewater falls, thereby performing stirring treatment on the wastewater through the rotation of the filter blades 15, preventing the blockage inside the device due to the impurities, the floaters doped in the wastewater can be wound through the waterweed-shaped second barbs 20 so as to treat the floaters, and the wastewater is primarily treated through the second filter screen 13, the waste water after handling can flow into the inside of treatment box 1 through pipe 10, can shunt treatment to medical waste water through flow distribution plate 9, so that carry out filtration treatment to medical waste water, flow distribution plate 9's shape is similar with the shape of pine, can block the impurity in the waste water when slowing down waste water velocity of flow, so that improve the treatment effeciency of device to waste water, the filtration through first filter screen 7 makes waste water flow to baffle 4 on, baffle 4 through the echelonment can carry out filtration treatment many times to waste water, waste water after the processing is discharged through filtration pore 2 and outlet 3.
Example 2
Referring to fig. 4, in the medical wastewater treatment apparatus for medical use of the present embodiment, compared to embodiment 1, a filter plate 22 is connected between two opposite inner walls of a water storage tank 12 through bolts, and the filter plate 22 is in a wave shape, and the filter plate 22 is located below a second filter screen 13.
The working principle is as follows: when in use, the medical wastewater is contained into the device through the water inlet pipe 16, the medical wastewater can be blocked through the wave-shaped baffle 17 so as to slow down the flow speed of the wastewater, thereby performing filtration treatment on the wastewater, preventing impurities in the wastewater from being accumulated together due to the high flow speed of the wastewater, further causing blockage inside the device and further affecting the treatment efficiency of the wastewater, the impurities in the wastewater can be primarily filtered through the first barbs 18, the filter blades 15 are driven to rotate through the gravitational potential energy generated when the wastewater falls, thereby performing stirring treatment on the wastewater through the rotation of the filter blades 15, preventing the blockage inside the device due to the impurities, the floaters doped in the wastewater can be wound through the waterweed-shaped second barbs 20 so as to treat the floaters, and the wastewater is primarily treated through the second filter screen 13, can further carry out filtration treatment to waste water through wavy filter plate 22, the waste water after handling can flow into the inside of treatment box 1 through pipe 10, can shunt treatment to medical waste water through flow distribution plate 9, so that carry out filtration treatment to medical waste water, flow distribution plate 9's shape is similar with the shape of pine, can block the impurity in the waste water when slowing down waste water flow velocity, so that improve the treatment effeciency of device to waste water, make waste water flow on baffle 4 through the filtration of first filter screen 7, can carry out filtration treatment many times to waste water through the baffle 4 of echelonment, waste water after the processing discharges through filtration pore 2 and outlet 3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a medical treatment is with medical wastewater treatment device, includes handles case (1), its characterized in that, the equal fixedly connected with fixed axle (11) in both sides of handling case (1) top outer wall, and the equal fixedly connected with storage water tank (12) of top outer wall of two fixed axles (11), the water inlet has been seted up to the top outer wall of storage water tank (12), and the inner wall of water inlet is provided with inlet tube (16), the equal fixedly connected with a plurality of baffles (17) of both sides inner wall that inlet tube (16) is relative, and the shape of baffle (17) is the wave, one side outer wall of baffle (17) is provided with a plurality of first barbs (18), the inner wall of handling case (1) has second filter screen (13) through hinged joint, the bottom outer wall of the top outer wall of handling case (1) and storage water tank (12) has all seted up a plurality of openings, and is provided with, the outer wall of the bottom of the treatment box (1) is provided with a plurality of filter holes (2).
2. The medical wastewater treatment device according to claim 1, wherein a rotating shaft (14) is rotatably connected between the two opposite inner walls of the water storage tank (12) through a bearing, and a plurality of filter blades (15) are fixedly connected to the outer wall of the rotating shaft (14).
3. The medical wastewater treatment apparatus according to claim 2, wherein the filter blade (15) is provided with second barbs (20) on both outer walls, and the second barbs (20) are shaped like waterweeds.
4. The medical wastewater treatment device according to claim 1 or 2, wherein an arc-shaped plate (19) is fixedly connected to both sides of the inner wall of the bottom of the water storage tank (12).
5. The medical treatment medical wastewater treatment device according to claim 1, wherein a support plate (8) is fixedly connected to the inner wall of the treatment tank (1), guide openings are formed in two sides of the outer wall of the top of the support plate (8), and a first filter screen (7) is fixedly connected to the inner wall of each guide opening.
6. The medical wastewater treatment device according to claim 5, wherein a splitter plate (9) is fixedly connected to the top outer wall of the support plate (8), and the splitter plate (9) has a shape similar to a shape of a pine tree.
7. The medical treatment medical wastewater treatment device according to claim 5, wherein the drainage plate (5) is hinged to both sides of the outer wall of the bottom of the support plate (8), and the spring (6) is fixedly connected between the drainage plate (5) and the support plate (8).
8. The medical wastewater treatment device according to claim 1, wherein the inner walls of two opposite sides of the treatment box (1) are fixedly connected with guide plates (4), the guide plates (4) are in a step shape, the two sides of the inner wall of the bottom of the treatment box (1) are provided with water outlets (3), and the water outlets (3) are positioned below the guide plates (4).
9. The medical wastewater treatment device according to claim 1, wherein the outer wall of one side of the treatment tank (1) and the outer wall of one side of the water storage tank (12) are provided with cleaning ports, and the inner walls of one sides of the two cleaning ports are connected with sealing covers (21) through hinges.
10. The medical wastewater treatment device according to claim 1, wherein a filter plate (22) is fixedly connected between the inner walls of the two opposite sides of the water storage tank (12), the filter plate (22) is wave-shaped, and the filter plate (22) is positioned below the second filter screen (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634724.7A CN111760347A (en) | 2020-07-02 | 2020-07-02 | Medical treatment is with medical effluent treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634724.7A CN111760347A (en) | 2020-07-02 | 2020-07-02 | Medical treatment is with medical effluent treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111760347A true CN111760347A (en) | 2020-10-13 |
Family
ID=72723629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010634724.7A Withdrawn CN111760347A (en) | 2020-07-02 | 2020-07-02 | Medical treatment is with medical effluent treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111760347A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210292205A1 (en) * | 2020-05-27 | 2021-09-23 | Shaoguan University | SYSTEM AND METHOD FOR TREATING MEDICAL SEWAGE CONTAINING SARS-CoV-2 BASED ON NANO GRAPHENE |
| CN113600094A (en) * | 2021-08-24 | 2021-11-05 | 黄作林 | Automatic chemical feeding device for sewage treatment |
-
2020
- 2020-07-02 CN CN202010634724.7A patent/CN111760347A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210292205A1 (en) * | 2020-05-27 | 2021-09-23 | Shaoguan University | SYSTEM AND METHOD FOR TREATING MEDICAL SEWAGE CONTAINING SARS-CoV-2 BASED ON NANO GRAPHENE |
| CN113600094A (en) * | 2021-08-24 | 2021-11-05 | 黄作林 | Automatic chemical feeding device for sewage treatment |
| CN113600094B (en) * | 2021-08-24 | 2023-10-24 | 珠海华睿自动化科技有限公司 | Sewage treatment is with automatic medicine device that adds |
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Application publication date: 20201013 |
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