CN215592648U - Medicine-adding energy-saving control cabinet - Google Patents

Medicine-adding energy-saving control cabinet Download PDF

Info

Publication number
CN215592648U
CN215592648U CN202122180954.3U CN202122180954U CN215592648U CN 215592648 U CN215592648 U CN 215592648U CN 202122180954 U CN202122180954 U CN 202122180954U CN 215592648 U CN215592648 U CN 215592648U
Authority
CN
China
Prior art keywords
medicine
storage box
liquid medicine
control cabinet
liquid
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
Application number
CN202122180954.3U
Other languages
Chinese (zh)
Inventor
胡永奇
周云峰
张树
王长健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Kunlun Coast Technology Co ltd
Original Assignee
Beijing Kunlun Coast Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Kunlun Coast Technology Co ltd filed Critical Beijing Kunlun Coast Technology Co ltd
Priority to CN202122180954.3U priority Critical patent/CN215592648U/en
Application granted granted Critical
Publication of CN215592648U publication Critical patent/CN215592648U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The application discloses add medicine energy-saving control cabinet relates to sewage treatment device's technical field. Comprises a cabinet body, wherein a medicine storage box is arranged in the cabinet body, the top of the medicine storage box is provided with a medicine inlet, and the bottom of the medicine storage box is provided with a medicine outlet; a medicine delivery pipeline is communicated with the position of the medicine outlet at the bottom of the medicine storage box, and a ball valve is arranged on the medicine delivery pipeline; the cabinet body is also internally provided with a control system for controlling the opening and closing of the ball valve. The ball valve is opened through the operation control system, liquid medicine in the medicine storage box drips to the medicine conveying pipeline by means of self gravity, and sewage treatment is carried out in the reaction tank connected with the medicine conveying pipeline along the flow direction of the medicine conveying pipeline. The installation and power supply of the dosing pump are reduced, the resource consumption is reduced, and a large part of cost is saved; meanwhile, the installation space in the control cabinet is saved, the maintenance and the medicine adding are convenient, and the overall load rate of the control cabinet is reduced.

Description

Medicine-adding energy-saving control cabinet
Technical Field
The application relates to the technical field of sewage treatment equipment, in particular to a dosing energy-saving control cabinet.
Background
Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. The methods for treating sewage are various, and can be generally classified into physical methods, chemical methods, biological methods and the like.
When sewage treatment is performed by adopting a chemical method, a dosing system is an indispensable link, and a common dosing system generally utilizes a common suction pump to pump liquid medicine in a medicine box into a sewage pipeline to be treated. However, the mode needs to separately install the dosing pump, the configuration is various, and the installation and the maintenance are inconvenient.
With respect to the related art described above, the inventors consider that there is a drawback that it is inconvenient to install and maintain.
SUMMERY OF THE UTILITY MODEL
In order to facilitate installation and maintenance, the application provides a medicine energy-saving control cabinet.
The application provides a add medicine energy-saving control cabinet adopts following technical scheme:
a dosing energy-saving control cabinet comprises a cabinet body, wherein a medicine storage box is arranged in the cabinet body, the top of the medicine storage box is provided with a medicine inlet, and the bottom of the medicine storage box is provided with a medicine outlet; a medicine delivery pipeline is communicated with the position of a medicine outlet at the bottom of the medicine storage box, and a ball valve is arranged on the medicine delivery pipeline; and a control system for controlling the opening and closing of the ball valve is also arranged in the cabinet body.
Through adopting above-mentioned technical scheme, operation control system opens the ball valve, and the liquid medicine in the explosive box relies on self gravity to drip to the medicine conveying pipeline, carries out sewage treatment in the liquid medicine along the medicine conveying pipeline flow direction and the retort that medicine conveying pipeline is connected. The installation and power supply of the dosing pump are reduced, the resource consumption is reduced, and a large part of cost is saved; meanwhile, the installation space in the control cabinet is saved, the maintenance and the medicine adding are convenient, and the overall load rate of the control cabinet is reduced.
Preferably, the control system comprises an automatic control module and a manual control module.
Through adopting above-mentioned technical scheme, control system includes automatic control module and manual control module, can add the medicine automatically, can manually control again and add the medicine.
Preferably, a check valve is arranged on the drug delivery pipeline.
Through adopting above-mentioned technical scheme, set up the check valve on the medicine conveying pipeline, and then prevent the liquid medicine refluence.
Preferably, a liquid medicine uniform output mechanism is arranged in the liquid medicine storage box; the liquid medicine in the medicine storage box flows to the middle part of the liquid medicine every time through the liquid medicine uniform output mechanism.
By adopting the technical scheme, the medicine liquid uniform output mechanism is arranged in the medicine storage box, and the medicine liquid dripped into the infusion pipeline each time is the middle part of the medicine liquid; because the liquid medicine has sedimentation, the concentration of the liquid medicine in the middle part is closer to the whole concentration of the liquid medicine relative to the concentration of the liquid medicine at the upper end and the lower end, and the quality of the liquid medicine dripped into the infusion pipeline is effectively ensured.
Preferably, the liquid medicine uniform output mechanism comprises an elastic telescopic hose and a suspension ball fixed at the top of the elastic telescopic hose;
the elastic flexible hose is a corrugated pipe with a spring coaxially penetrating through the inner part, and the elastic flexible hose is coaxially and fixedly connected with the corresponding position of the medicine outlet on the medicine storage box;
a medicine outlet hole is formed in the middle position of the periphery of the elastic telescopic hose in the upward direction;
after liquid medicine is filled into the medicine storage box, the suspension ball floats on the surface of the liquid medicine, the elastic flexible hose stretches uniformly, the medicine outlet is positioned in the middle of the liquid medicine, and the liquid medicine can only enter the infusion pipeline along the medicine outlet.
By adopting the technical scheme, after the medicine liquid is filled in the medicine storage box, the suspension ball floats to the surface of the medicine liquid under the buoyancy action of the medicine liquid, the elastic flexible hose is driven by the suspension ball to uniformly extend, and the medicine outlet hole is positioned in the middle of the medicine liquid; after the ball valve is opened, the liquid medicine at the middle position firstly flows to the medicine conveying pipeline along the medicine outlet hole; along with the diminishing of liquid medicine gradually, the buoyancy that the suspension ball received reduces gradually, and the length of elastic expansion hose evenly reduces gradually, and at this moment, the high position of going out the medicine hole still is located the intermediate position department of surplus liquid medicine, and then guarantees that the liquid medicine that flows at will is the liquid medicine of intermediate position department, has effectively guaranteed the quality of the concentration of output liquid medicine.
Preferably, the medicine inlet is a circular pipe body, the medicine inlet and the medicine outlet are coaxially arranged, and the medicine inlet is positioned outside the medicine storage box; the suspension ball can extend into the medicine inlet completely.
Through adopting above-mentioned technical scheme, the suspension ball floats behind the liquid medicine surface, and the suspension ball can stretch into in the medicine inlet, has effectively avoided the suspension ball to occupy the space of storing the liquid medicine in the explosive box, has increased the storage capacity of explosive box.
Preferably, the extension pipe is coaxially and fixedly connected to the position, corresponding to the medicine outlet, of the bottom of the medicine storage box, is positioned outside the medicine storage box, and is communicated with the medicine conveying pipeline;
the elastic flexible hose penetrates through the extension pipe, and the bottom of the elastic flexible hose is fixed at the bottom of the extension pipe;
when the elastic flexible hose is in a natural state, the lower half part of the elastic flexible hose is completely positioned in the extension pipe.
Through adopting above-mentioned technical scheme, go out medicine mouth position department at the explosive box bottom and set up the extension pipe, the latter half of elastic expansion hose can all stretch into in the extension pipe to make out the medicine hole and can reach the explosive box bottommost, prevent that the liquid medicine is extravagant.
Preferably, go out the medicine hole and set up to a plurality ofly, it is a plurality of go out the medicine hole and set up along the even interval of elasticity flexible hose circumferential direction.
Through adopting above-mentioned technical scheme, go out the medicine hole and set up to a plurality ofly to evenly upwards in the flexible hose periphery respectively, the ascending liquid medicine homoenergetic of mid portion equidirectional not can get into in the flexible hose.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the operation control system opens the ball valve, the liquid medicine in the medicine storage box drips to the medicine conveying pipeline by means of the gravity of the liquid medicine, and the liquid medicine is subjected to sewage treatment in the reaction tank connected with the medicine conveying pipeline along the flow direction of the medicine conveying pipeline. The installation and power supply of the dosing pump are reduced, the resource consumption is reduced, and a large part of cost is saved; meanwhile, the installation space in the control cabinet is saved, the maintenance and the medicine adding are convenient, and the overall load rate of the control cabinet is reduced;
2. a liquid medicine uniform output mechanism is arranged in the medicine storage box, and liquid medicine dripped into the infusion pipeline each time is the middle part of the liquid medicine; because the liquid medicine is settled, the concentration of the liquid medicine in the middle part is closer to the whole concentration of the liquid medicine relative to the concentration of the liquid medicine at the upper end and the lower end, and the quality of the liquid medicine dripped into the infusion pipeline is effectively ensured;
3. after the suspension ball floats on the surface of the liquid medicine, the suspension ball can stretch into the medicine inlet, so that the suspension ball is effectively prevented from occupying the space for storing the liquid medicine in the medicine storage box, and the storage capacity of the medicine storage box is increased.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.
Fig. 2 is a schematic sectional view showing the inside of the medicine box according to the second embodiment of the present application.
Description of reference numerals: 1. a cabinet body; 2. a medicine storage box; 21. a medicine inlet; 22. a dust cover; 23. a medicine outlet; 24. an extension pipe; 3. a drug delivery line; 4. a ball valve; 5. a control system; 6. a check valve; 7. a liquid medicine uniform output mechanism; 71. an elastic flexible hose; 72. and (5) suspending the ball.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a medicine adding energy-saving control cabinet.
Example one
Referring to fig. 1, the dosing energy-saving control cabinet comprises a cabinet body 1, wherein a medicine storage box 2 is arranged in the cabinet body 1; the bottom of the medicine storage box 2 is communicated with a medicine conveying pipeline 3, and the whole medicine conveying pipeline 3 is arranged below the medicine storage box 2; the medicine conveying pipeline 3 is provided with a ball valve 4. The cabinet body 1 is also internally provided with a control system 5 for controlling the opening and closing of the ball valve 4.
The operation control system 5 opens the ball valve 4, the liquid medicine in the medicine storage box 2 drips to the medicine conveying pipeline 3 by means of self gravity, and the liquid medicine is subjected to sewage treatment in the reaction tank connected with the medicine conveying pipeline 3 along the flow direction of the medicine conveying pipeline 3. The installation and power supply of the dosing pump are reduced, the resource consumption is reduced, and a large part of cost is saved; meanwhile, the installation space in the control cabinet is saved, the maintenance and the medicine adding are convenient, and the overall load rate of the control cabinet is reduced.
Referring to fig. 1, a cabinet 1 is divided into an upper portion and a lower portion. The medicine storage box 2 is fixed at the lower part in the cabinet body 1, and medicine liquid is stored in the medicine storage box 2; the top of the medicine storage box 2 is provided with a medicine inlet 21, the medicine inlet 21 is a circular tube body, the bottom of the medicine inlet 21 is fixedly connected and communicated with the top of the medicine storage box 2, the whole medicine inlet 21 is located outside the medicine storage box 2, and the top of the medicine inlet 21 is in threaded connection with a dust cover 22.
A medicine outlet 23 is formed in the bottom of the medicine storage box 2, the medicine conveying pipeline 3 is communicated with the medicine outlet 23 in the bottom of the medicine storage box 2, and a check valve 6 and a ball valve 4 are sequentially arranged on the medicine conveying pipeline 3; the check valve 6 is used for preventing the liquid medicine in the liquid medicine pipeline 3 from flowing backwards, and the ball valve 4 is used for opening or closing the liquid medicine pipeline.
The control system 5 is arranged at the upper part in the cabinet body 1, and the control system 5 comprises an automatic control module and a manual control module; the automatic control module automatically detects and judges whether medicine needs to be added or not and the medicine adding amount when the medicine needs to be added, and controls the opening and closing of the ball valve 4 and the flow of the ball valve 4 through electric signals; the manual control module comprises three manual buttons which respectively represent starting, stopping and emergency stopping, the three manual buttons are electrically connected with the ball valve 4, and an operator controls the opening or closing of the ball valve 4 through manually controlling the three buttons.
The implementation principle of a medicine energy-saving control cabinet of the embodiment of the application is as follows:
when medicine needs to be added, the ball valve 4 is opened through automatic control or manual control, liquid medicine in the medicine storage box 2 drips into the medicine conveying pipeline 3 by means of self gravity, and sewage treatment is carried out in the reaction tank connected with the medicine conveying pipeline 3 along the flow direction of the medicine conveying pipeline 3. The installation and power supply of the dosing pump are reduced, and a large part of cost is saved; meanwhile, the installation space in the control cabinet is saved, the maintenance and the medicine adding are convenient, and the overall load rate of the control cabinet is reduced.
Example two
Referring to fig. 2, the difference between the energy-saving dosing control cabinet and embodiment 1 is that a uniform liquid medicine output mechanism 7 is arranged in the medicine storage box 2, and the uniform liquid medicine output mechanism 7 includes an elastic flexible tube 71 and a floating ball 72. The elastic flexible hose 71 is a corrugated pipe with a spring coaxially arranged inside; the bottom of the elastic telescopic hose 71 is fixed at a position on the medicine storage box 2 corresponding to the medicine outlet 23, and the elastic telescopic hose 71 and the medicine outlet 23 are coaxially arranged. The periphery of the middle position of the elastic telescopic hose 71 is upwards provided with a plurality of medicine outlet holes at intervals, and the axial direction of the medicine outlet holes is perpendicular to the axial direction of the elastic telescopic hose 71. The suspension ball 72 is fixed on the top of the elastic telescopic hose 71, and the liquid medicine in the medicine storage box 2 can only enter the medicine conveying pipeline 3 along the medicine outlet hole.
For convenience of description, the liquid medicine in the medicine storage box 2 is uniformly divided into an upper layer, a middle layer and a lower layer. Because the liquid medicine is settled, the concentration of the liquid medicine at the upper layer is slightly smaller than that of the liquid medicine at the middle layer, the concentration of the liquid medicine at the middle layer is slightly smaller than that of the liquid medicine at the lower layer, and the concentration of the liquid medicine at the middle layer is closer to that of the liquid medicine, so that the liquid medicine at the middle layer is better than the liquid medicines at the upper layer and the lower layer.
After the liquid medicine is filled into the medicine storage box 2, the floating ball 72 moves to a position between the top of the medicine storage box 2 and the top of the liquid medicine under the buoyancy action of the liquid medicine, at this time, the elastic telescopic hose 71 is in a uniform stretching state under the driving of the floating ball 72, and the height position of the medicine outlet hole is located at the middle layer position of the liquid medicine. After the ball valve 4 is opened, the middle-layer liquid medicine firstly enters the elastic flexible hose 71 along the medicine outlet hole and drips into the infusion pipeline along the elastic flexible hose 71. Along with the gradual reduction of liquid medicine, the buoyancy that suspension ball 72 received reduces gradually, and the length of elastic expansion hose 71 evenly reduces gradually, and at this moment, the high position of going out the medicine hole still is located the middle level position department of remaining liquid medicine, and then guarantees that the liquid medicine that flows out at any moment is the liquid medicine of middle level position department, has effectively guaranteed the quality of the concentration of output liquid medicine.
In order to prevent the suspension balls 72 from occupying the space for storing the liquid medicine in the medicine storage box 2, the axial directions of the medicine outlet 23 and the medicine inlet 21 are overlapped; and the inner diameter of the medicine inlet 21 is larger than the outer diameter of the suspension ball 72, and the suspension ball 72 can be accommodated in the medicine inlet 21. When the medicine box 2 is filled with the liquid medicine, the suspension balls 72 are suspended in the feed port, so that the liquid medicine capacity of the medicine box 2 is improved, and the influence on the water outlet position caused by the downward acting force applied to the suspension balls 72 by the medicine box 2 is avoided.
In order to prevent the residual of the lower-layer liquid medicine in the medicine storage box 2, an extension pipe 24 is coaxially and fixedly connected to the position, corresponding to the medicine outlet 23, of the outer side of the medicine storage box 2, and a water conveying pipeline is fixedly connected with the bottom of the extension pipe 24; the elastic flexible hose 71 coaxially penetrates through the extension pipe 24, and the bottom of the elastic flexible hose 71 is fixedly connected with the bottom of the extension pipe 24. When no liquid medicine is in the medicine storage box 2, the elastic telescopic hose 71 is in a natural state, at this time, the lower half portion of the elastic telescopic hose 71 is completely positioned in the extension pipe 24, and the medicine outlet is arranged in parallel with the bottom of the medicine storage box 2.
The implementation principle of the above embodiment is as follows:
after the liquid medicine is filled into the medicine storage box 2, under the buoyancy action of the liquid medicine, the suspension ball 72 is suspended to the surface of the liquid medicine, and the medicine outlet hole on the elastic telescopic hose 71 is positioned in the middle of the liquid medicine; after the ball valve 4 is opened, the middle-layer liquid medicine flows to the medicine conveying pipeline 3 along the medicine outlet hole; along with the gradual reduction of liquid medicine, the buoyancy that suspension ball 72 received reduces gradually, and the length of elastic expansion hose 71 evenly reduces gradually, and at this moment, the high position of going out the medicine hole still is located the intermediate position department of surplus liquid medicine, and then guarantees that the liquid medicine that flows out at any moment is the liquid medicine of intermediate position department, has effectively guaranteed the quality of the concentration of output liquid medicine.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a medicine energy-saving control cabinet adds, includes cabinet body (1), its characterized in that: a medicine storage box (2) is installed in the cabinet body (1), a medicine inlet (21) is formed in the top of the medicine storage box (2), and a medicine outlet (23) is formed in the bottom of the medicine storage box; a medicine delivery pipeline (3) is communicated with the position of a medicine outlet (23) at the bottom of the medicine storage box (2), and a ball valve (4) is arranged on the medicine delivery pipeline (3); the cabinet body (1) is also internally provided with a control system (5) for controlling the opening and closing of the ball valve (4).
2. The dosing energy-saving control cabinet according to claim 1, characterized in that: the control system (5) comprises an automatic control module and a manual control module.
3. The dosing energy-saving control cabinet according to claim 1, characterized in that: and a check valve (6) is arranged on the medicine delivery pipeline (3).
4. The dosing energy-saving control cabinet according to claim 1, characterized in that: a liquid medicine uniform output mechanism (7) is arranged in the liquid medicine storage box (2); the liquid medicine in the medicine storage box (2) flows to the middle part of the liquid medicine in the transfusion pipeline every time through the liquid medicine uniform output mechanism (7).
5. The dosing energy-saving control cabinet according to claim 4, characterized in that: the liquid medicine uniform output mechanism (7) comprises an elastic telescopic hose (71) and a suspension ball (72) fixed at the top of the elastic telescopic hose (71);
the elastic telescopic hose (71) is a corrugated pipe with a spring coaxially penetrating through the inner part, and the elastic telescopic hose (71) is coaxially and fixedly connected with the corresponding position of the medicine outlet (23) on the medicine storage box (2);
a medicine outlet hole is formed in the middle position of the periphery of the elastic telescopic hose (71) in the upward direction;
after liquid medicine is filled into the medicine storage box (2), the suspension balls (72) float on the surface of the liquid medicine, the elastic telescopic hoses (71) are uniformly stretched, the medicine outlet holes are located in the middle of the liquid medicine, and the liquid medicine can only enter the infusion pipeline along the medicine outlet holes.
6. The dosing energy-saving control cabinet according to claim 5, characterized in that: the medicine inlet (21) is a circular pipe body, the medicine inlet (21) and the medicine outlet (23) are coaxially arranged, and the medicine inlet (21) is positioned outside the medicine storage box (2); the suspension ball (72) can be completely extended into the medicine inlet (21).
7. The dosing energy-saving control cabinet according to claim 5, characterized in that: an extension pipe (24) is coaxially and fixedly connected to the position, corresponding to the medicine outlet (23), of the bottom of the medicine storage box (2), the extension pipe (24) is located outside the medicine storage box (2), and the extension pipe (24) is communicated with the medicine conveying pipeline (3);
the elastic flexible hose (71) is arranged in the extension pipe (24) in a penetrating mode, and the bottom of the elastic flexible hose (71) is fixed to the bottom of the extension pipe (24);
when the elastic telescopic hose (71) is in a natural state, the lower half part of the elastic telescopic hose (71) is completely positioned in the extension pipe (24).
8. The dosing energy-saving control cabinet according to claim 5, characterized in that: go out the medicine hole and set up to a plurality ofly, it is a plurality of it sets up along elastic expansion hose (71) even interval of circumference direction to go out the medicine hole.
CN202122180954.3U 2021-09-09 2021-09-09 Medicine-adding energy-saving control cabinet Active CN215592648U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122180954.3U CN215592648U (en) 2021-09-09 2021-09-09 Medicine-adding energy-saving control cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122180954.3U CN215592648U (en) 2021-09-09 2021-09-09 Medicine-adding energy-saving control cabinet

Publications (1)

Publication Number Publication Date
CN215592648U true CN215592648U (en) 2022-01-21

Family

ID=79885483

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122180954.3U Active CN215592648U (en) 2021-09-09 2021-09-09 Medicine-adding energy-saving control cabinet

Country Status (1)

Country Link
CN (1) CN215592648U (en)

Similar Documents

Publication Publication Date Title
CN103818996B (en) Displacer type water decanter
CN106745755A (en) A kind of solar energy microkinetic Intelligent life sewage disposal system and sewage water treatment method
CN103387312A (en) Multilevel biological contact oxidation reactor sewage treatment device
WO2012086869A1 (en) Water circulating device for lakes and marshes
CN215592648U (en) Medicine-adding energy-saving control cabinet
CN210528587U (en) Cooperative application system for sewage treatment and sewage irrigation
CN206570091U (en) A kind of solar energy microkinetic Intelligent life sewage disposal system
CN203419818U (en) Sewage disposal equipment for multi-stage bio-contact oxidation reactors
CN216212373U (en) Full-automatic treatment system for nuclear medicine decay pool waste liquid
CN105413549B (en) A kind of muddy water pulse mixing arrangement
CN209861999U (en) A oxygenation device for aquaculture
CN111410299A (en) Flexible filler sequencing batch biofilm reactor
CN104843867B (en) Membrane biological wastewater treatment device
CN103518640A (en) Method for using automatic water replenishing devices for large-livestock cultivating
CN109356782B (en) Buoyancy water lifting device and buoyancy water lifting method for hydraulic and hydroelectric engineering
CN110304713A (en) Sewage treatment floating ball filling system and production method
CN206985960U (en) Integrated sewage treating apparatus
CN217398728U (en) Sludge storage device capable of automatically discharging supernatant
CN217600480U (en) Small-size vertical aeration tank
CN214780965U (en) Preliminary clarification plant of domestic city sewage
CN215592895U (en) Sludge concentration centralized treatment device
CN218665635U (en) Medicine adding device and water treatment system
CN213231692U (en) Pulse water distributor and pulse water distribution type UASB anaerobic reaction equipment
CN220098743U (en) SBBR sewage treatment plant of high-efficient denitrogenation
CN212894358U (en) Biological and physical combined water purifying device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant