CN216703989U - Waste water mixing device - Google Patents
Waste water mixing device Download PDFInfo
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- CN216703989U CN216703989U CN202122804173.7U CN202122804173U CN216703989U CN 216703989 U CN216703989 U CN 216703989U CN 202122804173 U CN202122804173 U CN 202122804173U CN 216703989 U CN216703989 U CN 216703989U
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Abstract
The utility model relates to a waste water mixing device, which comprises a waste water mixer, wherein the waste water mixer is provided with a main material flow inlet, an auxiliary material flow inlet, a mixing chamber, a diffusion chamber and a mixed fluid outlet; the main material flow inlet gradually forms a reduced funnel opening downwards to form high-speed mixed flow; the mixing chamber is connected with the main material flow inlet and the auxiliary material flow inlet; the mixing chamber is positioned below the main material flow inlet and the auxiliary material flow inlet; the diffusion chamber is connected with the mixing chamber; the diffusion chamber is positioned below the mixing chamber; the diffusion chamber gradually forms an enlarged bell mouth, namely a mixed fluid outlet, from the pipe orifice downwards so as to slow down the diffusion flow rate; the mixed fluid outlet is located below the diffusion chamber. The utility model is used for mixing and diffusing high-concentration wastewater and low-concentration wastewater on a conveying pipeline to realize the purposes of uniform mixing quality and power consumption saving, thereby solving the problems of uniform mixing and energy saving of the high-concentration wastewater and the low-concentration wastewater.
Description
Technical Field
The utility model relates to the technical field of pharmaceutical wastewater treatment, in particular to a wastewater mixing device.
Background
In recent years, with the comprehensive popularization and application of wastewater treatment technologies, industrial wastewater treatment in the fields of medicine, chemical industry, synthesis and pharmaceutical technology is increasingly receiving wide attention from government-related departments and the public community.
For better pharmaceutical wastewater treatment, the front end of the plant usually performs the quality classification of wastewater, especially the quality classification of high-concentration wastewater and low-concentration wastewater. The pharmaceutical wastewater after quality classification is conveyed to the collecting tanks of the corresponding classes of the sewage station through the wastewater conveying pipelines so as to allocate and manage the quality of the inlet water of the sewage station. However, the problem that how to ensure the mixing and homogenization of high-concentration wastewater and low-concentration wastewater while saving energy and reducing consumption is a technical problem which needs to be solved urgently at present follows.
Therefore, there is a need to develop a new wastewater mixing device suitable for industrial application to solve the problem of mixing and homogenizing high-concentration wastewater and low-concentration wastewater in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waste water mixing device for solving the problems of mixing, homogenizing and saving energy of high-concentration waste water and low-concentration waste water, which can be used for mixing and diffusing the high-concentration waste water and the low-concentration waste water on a conveying pipeline so as to realize the purposes of uniform mixing and power consumption saving.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a waste water mixing device comprises a waste water mixer 18, wherein the waste water mixer 18 is provided with a main material flow inlet 1, an auxiliary material flow inlet 2, a mixing chamber 3, a diffusion chamber 4 and a mixed fluid outlet 5;
the main material flow inlet 1 gradually forms a reduced funnel opening downwards, and an included angle formed by the main material flow inlet 1 and the funnel opening is 25-35 degrees, so that high-speed mixed flow is formed;
the mixing chamber 3 is connected with the main material flow inlet 1 and the auxiliary material flow inlet 2; the mixing chamber 3 is positioned below the main material flow inlet 1 and the auxiliary material flow inlet 2;
the diffusion chamber 4 is connected with the mixing chamber 3; the diffusion chamber 4 is positioned below the mixing chamber 3; the diffusion chamber 4 gradually forms an enlarged bell mouth from the pipe orifice downwards, namely a mixed fluid outlet 5, and the included angle formed by the diffusion chamber 4 and the mixed fluid outlet 5 is 30-40 degrees, so that the diffusion flow speed is reduced;
the mixed fluid outlet 5 is located below the diffusion chamber 4.
Preferably, the main material flow inlet 1 is used for connecting with a conveying pipeline of high-concentration wastewater;
preferably, the by-product stream inlet 2 is used for connecting with a conveying pipeline of low-concentration wastewater;
preferably, the mixed fluid outlet 5 is used for connecting with a conveying pipeline of mixed waste water;
preferably, the high-concentration wastewater conveying pipeline is connected with the main material flow inlet 1 of the wastewater mixer 18 in a flange manner;
preferably, the connection mode of the low-concentration wastewater conveying pipeline and the subsidiary stream inlet 2 of the wastewater mixer 18 is flange connection;
preferably, the delivery pipe of the mixed wastewater is connected with the mixed fluid outlet 5 of the wastewater mixer 18 by a flange connection.
Preferably, the sizes of the pipe orifices of the main material flow inlet 1, the subsidiary material flow inlet 2, the mixing chamber 3 or the diffusion chamber 4 are calculated and determined according to the flow range required by design;
preferably, the materials of the main material flow inlet 1, the subsidiary material flow inlet 2, the mixing chamber 3 or the diffusion chamber 4 can be selected according to the compatibility of the wastewater quality, such as stainless steel or teflon lining;
preferably, the structure of the wastewater mixing device is schematically shown in figure 1;
preferably, the system also comprises a high-concentration wastewater COD online analysis tester 9, a low-concentration wastewater COD online analysis tester 10, a mixed wastewater COD online analysis tester 11, a high-concentration wastewater delivery pump 12, a low-concentration wastewater delivery pump 13, a high-concentration wastewater flow meter 14, a low-concentration wastewater flow meter 15, a high-concentration wastewater proportion regulation control valve 16, a low-concentration wastewater proportion regulation control valve 17 and a control system 19;
the high-concentration wastewater delivery pump 12, the high-concentration wastewater flow meter 14 and the high-concentration wastewater proportion adjusting control valve 16 are connected in parallel with a control system 19 through signal lines;
the low-concentration wastewater delivery pump 13, the low-concentration wastewater flowmeter 15 and the low-concentration wastewater proportional control valve 17 are connected in parallel with a control system 19 through signal lines;
the high-concentration wastewater COD online analysis tester 9, the low-concentration wastewater COD online analysis tester 10 and the mixed wastewater COD online analysis tester 11 are connected with the control system 19 in parallel through signal lines;
the high-concentration wastewater delivery pump 12, the high-concentration wastewater flow meter 14 and the high-concentration wastewater proportion regulation control valve 16 are installed on a high-concentration wastewater delivery pipeline in a series connection manner and are connected with a main material flow inlet 1 of a wastewater mixer 18 through the high-concentration wastewater delivery pipeline;
the low-concentration wastewater delivery pump 13, the low-concentration wastewater flow meter 15 and the low-concentration wastewater proportion adjusting control valve 17 are installed on a low-concentration wastewater delivery pipeline in a series connection mode and are connected with the side material flow inlet 2 of the wastewater mixer 18 through the low-concentration wastewater delivery pipeline;
the mixed wastewater conveying pipeline is connected with a mixed fluid outlet 5 of a wastewater mixer 18;
more preferably, the system also comprises a high-concentration wastewater pool (6), a low-concentration wastewater pool (7) and a mixed wastewater pool (8);
preferably, the high-concentration wastewater pool (6) is connected with a high-concentration wastewater delivery pump (12) through a high-concentration wastewater delivery pipeline;
preferably, the low-concentration wastewater pool (7) is connected with a low-concentration wastewater delivery pump (13) through a low-concentration wastewater delivery pipeline;
further preferably, the mixed wastewater tank (8) is connected with a mixed fluid outlet (5) of a wastewater mixer (18) through a mixed wastewater conveying pipeline;
further preferably, the high-concentration wastewater pool (6) is connected with a high-concentration wastewater COD online analysis tester (9) through a signal line;
further preferably, the low-concentration wastewater pool (7) is connected with a low-concentration wastewater COD online analysis tester (10) through a signal line;
further preferably, the mixed wastewater pool (8) is connected with a mixed wastewater COD online analysis tester (11) through a signal line.
Further preferably, the structure of the wastewater device is schematically shown in fig. 2.
The wastewater mixing device of the utility model mixes and homogenizes the high-concentration wastewater and the low-concentration wastewater by using the wastewater mixer with a special structure and saves the power consumption; further, the wastewater mixing device of the utility model can automatically adjust the high-concentration wastewater and the low-concentration wastewater according to the preset mixed COD concentration: mainly be in high concentration waste water collecting pit and low concentration waste water transportation process, gather the COD concentration data of high concentration waste water collecting pit and low concentration waste water collecting pit, the waste water flow that high concentration waste water of controller automatically regulated and low concentration waste water carried, and pass through waste water mixing arrangement in high concentration waste water and low concentration waste water transportation process, reach the purpose that high concentration waste water and low concentration waste water mix the homogeneity, thereby practice thrift the energy consumption, reduce artificial intervention, realize automatic control, be applicable to in the large-scale production of scale.
In addition, the utility model also has the following advantages: the application range is wider; the structure is simpler, the device occupies less space and can be used after being arranged on a pipeline; the mixing effect is better, the short flow condition can not occur in the mixing process, and the forced mixing function is realized; the energy-saving mixing device has the advantages of energy saving, less head resistance loss in practical application, short retention time in the mixing process, realization without stirring, no need of adding forced stirring devices and the like; the utility model can also realize automatic operation and unmanned operation, is more suitable for industrial production and large-scale application, and has more popularization significance.
Drawings
FIG. 1 is a schematic structural view of a wastewater mixing device according to the present invention;
wherein each number in fig. 1 represents: 1-main stream inlet, 2-subsidiary stream inlet, 3-mixing chamber, 4-diffusion chamber, and 5-mixed fluid outlet.
FIG. 2 is a schematic view showing the structure of another wastewater mixing apparatus according to the present invention;
in fig. 2, the dashed connecting lines represent signal lines, and the solid connecting lines represent transmission pipelines; fig. 2 shows the respective numbers: 6-high concentration wastewater pool, 7-low concentration wastewater pool, 8-mixed wastewater pool, 9-high concentration wastewater COD on-line analysis tester, 10-low concentration wastewater COD on-line analysis tester, 11-mixed wastewater COD on-line analysis tester, 12-high concentration wastewater delivery pump, 13-low concentration wastewater delivery pump, 14-high concentration wastewater flowmeter, 15-low concentration wastewater flowmeter, 16-high concentration wastewater proportion regulation control valve, 17-low concentration wastewater proportion regulation control valve, 18-wastewater mixer (structure is shown in figure 1), 19-control system.
Detailed Description
The following detailed description is directed to preferred embodiments of the utility model.
Fig. 1 is a schematic structural view of a wastewater mixing device according to the present invention. The device comprises a waste water mixer 18, wherein the waste water mixer is provided with a main material flow inlet 1, an auxiliary material flow inlet 2, a mixing chamber 3, a diffusion chamber 4 and a mixed fluid outlet 5;
the main material flow inlet 1 is used for being connected with a high-concentration wastewater conveying pipeline in a flange connection mode; calculating and determining the size of the pipe orifice of the main material flow inlet 1 according to a flow range required by design; the main material flow inlet 1 gradually forms a reduced funnel opening, and an included angle formed by the main material flow inlet 1 and the funnel opening is 25-35 degrees, so that high-speed mixed flow is formed; the material of the main material flow inlet 1 can be selected according to the compatibility of the wastewater quality, such as stainless steel or PTFE lining;
the subsidiary material flow inlet 2 is used for being connected with a conveying pipeline of low-concentration wastewater in a flange connection mode; calculating and determining the size of the orifice of the subsidiary material flow inlet 2 according to the flow range required by design; the material of the subsidiary material flow inlet 2 can be selected according to the compatibility of the waste water quality, such as stainless steel or PTFE lining;
the mixing chamber 3 is connected with the main material flow inlet 1 and the auxiliary material flow inlet 2; the size of the mixing chamber pipe orifice 3 is calculated and determined according to the flow range required by design; the mixing chamber 3 is positioned below the main material flow inlet 1 and the auxiliary material flow inlet 2;
the diffusion chamber 4 is connected with the mixing chamber 3; the diffusion chamber 4 is positioned below the mixing chamber 3; the size of the orifice of the diffusion chamber 4 is calculated and determined according to the flow range required by design; the diffusion chamber 4 gradually forms an enlarged bell mouth from the pipe orifice downwards, namely a mixed fluid outlet 5, and the included angle formed by the diffusion chamber 4 and the mixed fluid outlet 5 is 30-40 degrees, so that the diffusion flow speed is reduced; the material of the diffusion chamber 4 can be selected according to the compatibility of the wastewater quality, such as stainless steel or PTFE lining;
the mixed fluid outlet 5 is used for being connected with a conveying pipeline of mixed wastewater in a flange connection mode; the size of the orifice of the mixed fluid outlet 5 is calculated and determined according to the flow range required by design; the mixed fluid outlet 5 is located below the diffusion chamber 4; the material of the mixing chamber 3 can be selected according to the compatibility of the wastewater quality, such as stainless steel or PTFE liner.
Fig. 2 is a schematic structural diagram of a wastewater mixing device according to the present invention. The device is provided with a high-concentration wastewater COD online analysis tester 9, a low-concentration wastewater COD online analysis tester 10, a mixed wastewater COD online analysis tester 11, a high-concentration wastewater delivery pump 12, a low-concentration wastewater delivery pump 13, a high-concentration wastewater flowmeter 14, a low-concentration wastewater flowmeter 15, a high-concentration wastewater proportion regulation control valve 16, a low-concentration wastewater proportion regulation control valve 17, a wastewater mixer 18 and a control system 19; and a high-concentration wastewater pond 6, a low-concentration wastewater pond 7 and a mixed wastewater pond 8 are also arranged.
The structure of the waste water mixer 18 is shown in fig. 1, and is explained in detail with fig. 1;
the high-concentration wastewater delivery pump 12, the high-concentration wastewater flow meter 14 and the high-concentration wastewater proportion adjusting control valve 16 are connected in parallel with a control system 19 through signal lines;
the low-concentration wastewater delivery pump 13, the low-concentration wastewater flowmeter 15 and the low-concentration wastewater proportion adjusting control valve 17 are connected in parallel with a control system 19 through signal lines;
the high-concentration wastewater COD online analysis tester 9, the low-concentration wastewater COD online analysis tester 10 and the mixed wastewater COD online analysis tester 11 are connected with the control system 19 in parallel through signal lines;
the high-concentration wastewater delivery pump 12, the high-concentration wastewater flow meter 14 and the high-concentration wastewater proportion regulation control valve 16 are installed on a high-concentration wastewater delivery pipeline in a series connection manner and are connected with a main material flow inlet 1 of a wastewater mixer 18 through the high-concentration wastewater delivery pipeline; the high-concentration wastewater conveying pipeline is connected with the main material flow inlet 1 in a flange manner;
the low-concentration wastewater delivery pump 13, the low-concentration wastewater flowmeter 15 and the low-concentration wastewater proportion adjusting control valve 17 are arranged on a low-concentration wastewater delivery pipeline in a series connection manner and are connected with the subsidiary material flow inlet 2 of the wastewater mixer 18 through the low-concentration wastewater delivery pipeline; the low-concentration wastewater conveying pipeline is connected with the subsidiary stream inlet 2 in a flange manner;
the mixed wastewater delivery pipe is connected with the mixed fluid outlet 5 of the wastewater mixer 18; the connection mode of the mixed wastewater conveying pipeline and the mixed fluid outlet 5 is flange connection; the high-concentration wastewater pool 6 is connected with a high-concentration wastewater delivery pump 12 through a high-concentration wastewater delivery pipeline;
the low-concentration wastewater pool 7 is connected with a low-concentration wastewater delivery pump 13 through a low-concentration wastewater delivery pipeline;
the mixed wastewater pool 8 is connected with a mixed fluid outlet 5 of a wastewater mixer 18 through a mixed wastewater conveying pipeline;
the high-concentration wastewater pool 6 is connected with a high-concentration wastewater COD online analysis tester 9 through a signal line;
the low-concentration wastewater pool 7 is connected with a low-concentration wastewater COD online analysis tester 10 through a signal line;
and the mixed wastewater pool 8 is connected with a mixed wastewater COD online analysis tester 11 through a signal line.
The device can realize automatic mixing program control, and is specifically described as follows:
1. according to the wastewater mixing apparatus shown in fig. 2, the automatic mixing procedure of the wastewater mixing apparatus may be as follows: setting the COD concentration required by the mixed wastewater tank 8 on the control system 19; the control system 19 collects the values of the high concentration wastewater COD on-line analysis tester 9 and the low concentration wastewater COD on-line analysis tester 10 through the signal line, after the values are collected, the control system 19 performs logic analysis, gives control signals to the high concentration wastewater delivery pump 12 and the low concentration wastewater delivery pump 13, and starts the high concentration wastewater delivery pump 12 and the low concentration wastewater delivery pump 13; meanwhile, signals are given to control a high-concentration wastewater proportion adjusting control valve 16 and a low-concentration wastewater proportion adjusting valve 17, the opening degree and the conveying flow are adjusted, and wastewater is automatically mixed through a wastewater mixer 18.
2. According to the wastewater mixing device shown in fig. 2, the automatic mixing program of the wastewater mixing device can also be as follows: setting the wastewater COD concentration required by the mixed wastewater tank on a control system 19, detecting the COD of the mixed wastewater tank 8 by a mixed wastewater COD online analysis tester 11, transmitting the detected COD value to the control system 19 through a signal line, and performing logic analysis by the control system 19 to judge whether the COD required by the mixed wastewater tank 8 and the control system is deviated; if the COD concentration of the mixed wastewater tank 8 is low, the control system 19 sends out a logic control signal, the high-concentration wastewater delivery pump 12 is started, and meanwhile, the opening of the high-concentration wastewater proportion regulation control valve 16 is regulated to regulate the flow; if the COD concentration of the mixed wastewater tank 8 is higher, the control system 19 sends out a logic control signal, the low and high concentration wastewater delivery pump 13 is started, and meanwhile, the opening degree of the high concentration wastewater proportion regulation control valve 17 is regulated, and the flow is regulated.
The using method of the wastewater mixing device comprises the following operation steps:
1. the wastewater mixing device is provided with a control system 19 which is an integrated system, the installation position can be determined by using the working condition and the actual condition of the use field, and the control system can be used after being connected with a 220V power supply;
2. switching on the power supply, checking whether the power supply and the display are normal or not in the control system 19, the high-concentration wastewater proportion regulation control valve 16 and the bottom-concentration wastewater proportion regulation control valve 17;
3. the high-concentration wastewater COD online analysis tester 9, the low-concentration wastewater COD online analysis tester 10 and the mixed wastewater COD online analysis tester 11 can operate after being connected with 220 power supplies;
4. during the operation, the working conditions of the high-concentration wastewater delivery pump 12, the low-concentration wastewater delivery pump 13, the high-concentration wastewater flow meter 14, the low-concentration wastewater flow meter 15, the high-concentration wastewater proportional control valve 16, the low-concentration wastewater proportional control valve 17 and the control system 19 are recorded every 2 hours, and whether the working conditions are normal or not is recorded.
It should be noted that the above description is only a detailed description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The waste water mixing device is characterized by comprising a waste water mixer (18), wherein the waste water mixer (18) is provided with a main material flow inlet (1), an auxiliary material flow inlet (2), a mixing chamber (3), a diffusion chamber (4) and a mixed fluid outlet (5);
the main material flow inlet (1) gradually forms a reduced funnel opening downwards, and an included angle formed by the main material flow inlet (1) and the funnel opening is 25-35 degrees, so that high-speed mixed flow is formed;
the mixing chamber (3) is connected with the main material flow inlet (1) and the subsidiary material flow inlet (2); the mixing chamber (3) is positioned below the main material flow inlet (1) and the auxiliary material flow inlet (2);
the diffusion chamber (4) is connected with the mixing chamber (3); the diffusion chamber (4) is positioned below the mixing chamber (3); the diffusion chamber (4) gradually forms an enlarged bell mouth, namely a mixed fluid outlet (5), from the pipe orifice downwards, and an included angle formed by the diffusion chamber (4) and the mixed fluid outlet (5) is 30-40 degrees, so that the diffusion flow speed is reduced;
the mixed fluid outlet (5) is located below the diffusion chamber (4).
2. The wastewater mixing apparatus according to claim 1,
the main material flow inlet (1) is used for being connected with a conveying pipeline of high-concentration wastewater;
the side material flow inlet (2) is used for being connected with a conveying pipeline of low-concentration wastewater;
the mixed fluid outlet (5) is used for being connected with a conveying pipeline of mixed waste water.
3. The wastewater mixing apparatus according to claim 2,
the high-concentration wastewater conveying pipeline is connected with a main material flow inlet (1) of a wastewater mixer (18) in a flange manner;
the low-concentration wastewater conveying pipeline is connected with a subsidiary stream inlet (2) of a wastewater mixer (18) in a flange manner;
the connection mode of the mixed wastewater conveying pipeline and the mixed fluid outlet (5) of the wastewater mixer (18) is flange connection.
4. The waste water mixing device according to claim 1, further comprising a high concentration waste water COD on-line analysis tester (9), a low concentration waste water COD on-line analysis tester (10), a mixed waste water COD on-line analysis tester (11), a high concentration waste water delivery pump (12), a low concentration waste water delivery pump (13), a high concentration waste water flow meter (14), a low concentration waste water flow meter (15), a high concentration waste water proportion regulation control valve (16), a low concentration waste water proportion regulation control valve (17) and a control system (19);
the high-concentration wastewater delivery pump (12), the high-concentration wastewater flow meter (14) and the high-concentration wastewater proportion adjusting control valve (16) are connected in parallel with a control system (19) through signal lines;
the low-concentration wastewater delivery pump (13), the low-concentration wastewater flowmeter (15) and the low-concentration wastewater proportional control valve (17) are connected in parallel with a control system (19) through signal lines;
the high-concentration wastewater COD online analysis tester (9), the low-concentration wastewater COD online analysis tester (10) and the mixed wastewater COD online analysis tester (11) are connected in parallel with a control system (19) through signal lines;
the high-concentration wastewater delivery pump (12), the high-concentration wastewater flow meter (14) and the high-concentration wastewater proportion regulation control valve (16) are arranged on a high-concentration wastewater delivery pipeline in a series connection manner and are connected with a main material flow inlet (1) of a wastewater mixer (18) through the high-concentration wastewater delivery pipeline;
the low-concentration wastewater delivery pump (13), the low-concentration wastewater flowmeter (15) and the low-concentration wastewater proportion regulation control valve (17) are arranged on a low-concentration wastewater delivery pipeline in a series connection manner and are connected with a subsidiary stream inlet (2) of a wastewater mixer (18) through the low-concentration wastewater delivery pipeline;
the mixed wastewater conveying pipeline is connected with a mixed fluid outlet (5) of a wastewater mixer (18).
5. The wastewater mixing apparatus according to claim 4, further comprising a high concentration wastewater tank (6), a low concentration wastewater tank (7), and a mixed wastewater tank (8).
6. The wastewater mixing apparatus according to claim 5,
the high-concentration wastewater pool (6) is connected with a high-concentration wastewater delivery pump (12) through a high-concentration wastewater delivery pipeline;
the low-concentration wastewater pool (7) is connected with a low-concentration wastewater delivery pump (13) through a low-concentration wastewater delivery pipeline;
the mixed wastewater tank (8) is connected with a mixed fluid outlet (5) of a wastewater mixer (18) through a mixed wastewater conveying pipeline.
7. The wastewater mixing apparatus according to claim 5,
the high-concentration wastewater pool (6) is connected with a high-concentration wastewater COD online analysis tester (9) through a signal line;
the low-concentration wastewater pool (7) is connected with a low-concentration wastewater COD online analysis tester (10) through a signal line;
and the mixed wastewater pool (8) is connected with a mixed wastewater COD online analysis tester (11) through a signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122804173.7U CN216703989U (en) | 2021-11-16 | 2021-11-16 | Waste water mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122804173.7U CN216703989U (en) | 2021-11-16 | 2021-11-16 | Waste water mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216703989U true CN216703989U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122804173.7U Active CN216703989U (en) | 2021-11-16 | 2021-11-16 | Waste water mixing device |
Country Status (1)
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| CN (1) | CN216703989U (en) |
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2021
- 2021-11-16 CN CN202122804173.7U patent/CN216703989U/en active Active
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Effective date of registration: 20230516 Address after: No. 188, Qingfeng Avenue, Zhanggong District, Ganzhou City, Jiangxi Province, 341000 Patentee after: Jiangxi Kerui Pharmaceutical Co.,Ltd. Address before: 341000 East Avenue, Shahe Industrial Park Station, Zhanggong District, Ganzhou City, Jiangxi Province Patentee before: JIANGXI QINGFENG PHARMACEUTICAL Co.,Ltd. |