CN216273511U

CN216273511U - Wastewater treatment equipment with acid-base neutralization coagulation precipitation automatic regulation function

Info

Publication number: CN216273511U
Application number: CN202123011712.8U
Authority: CN
Inventors: 许利霞
Original assignee: Shandong Bsd Environmental Protection Co ltd
Current assignee: Shandong Bsd Environmental Protection Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-12
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device with an acid-base neutralization and coagulation sedimentation automatic regulation function, which comprises an acid-base neutralization tank, a coagulation sedimentation tank, a water quality detection tank, a neutralizer box, a coagulant box, two medicament injection devices and a PLC (programmable logic controller), wherein one medicament injection device is arranged at the top of the acid-base neutralization tank, the top of the medicament injection device is connected with the neutralizer box, and the other medicament injection device is arranged at the top of the coagulation sedimentation tank, the top of the medicament injection device is connected with the coagulant box; a PH sensor is arranged in the acid-base neutralization tank, a turbidity detector is arranged in the coagulating sedimentation tank, and a water quality detector is arranged in the water quality detection tank. The wastewater treatment equipment provided by the utility model can automatically detect wastewater and inject a medicament into the wastewater, so that the wastewater treatment processes such as acid-base neutralization, coagulating sedimentation and the like can be automatically controlled and regulated, and the purification efficiency and accuracy of the wastewater are improved.

Description

Wastewater treatment equipment with acid-base neutralization coagulation precipitation automatic regulation function

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device with an acid-base neutralization and coagulating sedimentation automatic adjusting function.

Background

The existing wastewater treatment equipment generally needs to manually put medicaments into the wastewater treatment equipment in the process of purifying wastewater, the putting process is troublesome, the time is consumed, the putting amount cannot be accurately controlled, and the medicament waste or the incomplete wastewater purification treatment can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a wastewater treatment device with an acid-base neutralization coagulation sedimentation automatic regulation function.

In order to achieve the purpose, the utility model adopts the technical scheme that: the waste water treatment equipment with the acid-base neutralization and coagulating sedimentation automatic adjusting function comprises an acid-base neutralization tank, a coagulating sedimentation tank, a water quality detection tank, a neutralizer box, a coagulant box, two medicament injection devices and a PLC (programmable logic controller), wherein one medicament injection device is arranged at the top of the acid-base neutralization tank, is connected with the neutralizer box and is used for injecting a neutralizer in the neutralizer box into the acid-base neutralization tank; the other agent injection device is arranged at the top of the coagulating sedimentation tank, the top of the agent injection device is connected with the coagulant tank, and the agent injection device is used for injecting the coagulant in the coagulant tank into the coagulating sedimentation tank;

a PH sensor is arranged in the acid-base neutralization tank and used for detecting the PH value of the wastewater; a turbidity detector is arranged in the coagulating sedimentation tank and is used for detecting the turbidity change of the wastewater; a water quality detector is arranged in the water quality detection tank and is used for detecting the water quality of the wastewater;

the acid-base neutralization tank is connected with the coagulating sedimentation tank through a first pipeline, a first water pump is arranged on the first pipeline, the coagulating sedimentation tank is connected with the water quality detection tank through a second pipeline, a second water pump is arranged on the second pipeline, the water quality detection tank is connected with the acid-base neutralization tank through a third pipeline, and a third water pump is arranged on the third pipeline;

PH sensor, turbidity detector, water quality detector, solenoid valve, medicament injection device, first water pump, second water pump, third water pump all with PLC controller communication connection for receive the detected signal that PH sensor, turbidity detector and water quality detector sent and control solenoid valve, medicament injection device, first water pump, second water pump and the operating condition of third water pump.

Specifically, each medicament injection device comprises a box body, an injector arranged in the box body, a driving component, a pipe valve component and a switch component, wherein the injector comprises a cylinder body, a piston arranged in the cylinder body, a piston rod with one end connected with the piston and a push plate connected with the other end of the piston rod, the pipe valve component comprises a three-way pipe, a first one-way valve and a second one-way valve, the three-way pipe comprises a first branch pipe, a second branch pipe and a third branch pipe, the first branch pipe extends into a neutralizer box or a coagulant box, the first one-way valve is arranged on the first branch pipe, the third branch pipe extends into an acid-base neutralization tank or a coagulating sedimentation tank, the second one-way valve is arranged on the third branch pipe, the second branch pipe is hermetically connected with a liquid outlet of the cylinder body, the driving component comprises a stepping motor, a lead screw with one end fixedly connected with an output shaft of the stepping motor and a bearing seat rotatably connected with the other end of the lead screw, the driving component penetrates through the push plate and is connected with the push plate through threads, the switch assembly comprises an upper limit switch and a lower limit switch, the upper limit switch and the lower limit switch are respectively positioned on the upper side and the lower side of the push plate, and the stepping motor, the first one-way valve, the second one-way valve and the switch assembly are respectively in communication connection with the PLC.

Furthermore, a water inlet pipe is arranged at the top of the left side of the acid-base neutralization tank, and wastewater to be treated enters the acid-base neutralization tank through the water inlet pipe; the right bottom of the water quality detection tank is provided with a drain pipe for discharging the wastewater with qualified water quality.

Preferably, a first stirring device is arranged in the acid-base neutralization tank, and a second stirring device is arranged in the coagulation sedimentation tank.

Preferably, a sludge discharge pipe is arranged at the bottom of the coagulating sedimentation tank, and a filter screen is arranged at a water outlet communicated with the second pipeline at the bottom of the inner side of the coagulating sedimentation tank.

The wastewater treatment equipment provided by the utility model can automatically detect wastewater and inject a medicament into the wastewater, so that the wastewater treatment processes such as acid-base neutralization, coagulating sedimentation and the like can be automatically controlled and regulated, and the purification efficiency and accuracy of the wastewater are improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a wastewater treatment facility with an acid-base neutralization coagulation-precipitation automatic adjustment function according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the drug injection device of FIG. 1;

in the figure: 10. an acid-base neutralization tank; 11. a pH sensor; 12. a first conduit; 13. a water inlet pipe; 14. a first stirring device; 20. a coagulating sedimentation tank; 22. a turbidity detector; 23. a second conduit; 24. a second stirring device; 25. a sludge discharge pipe; 26. filtering with a screen; 30. a water quality detection tank; 31. a third pipeline; 32. a drain pipe; 321. an electromagnetic valve; 33. a water quality detector; 40. a neutralizer box; 50. a coagulant tank; 60. a medicament injection device; 61. a box body; 62. an injector; 621. a barrel; 622. a piston; 623. a piston rod; 624. pushing the plate; 63. a drive assembly; 631. a stepping motor; 632. a screw rod; 633. a bearing seat; 64. a tubular valve assembly; 641. a three-way pipe; 642. a first check valve; 643. a second one-way valve; 65. a switch assembly; 651. an upper limit switch; 652. a lower limit switch; 70. a PLC controller; 81. a first water pump; 82. a second water pump; 83. and a third water pump.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the utility model in a schematic manner, and thus show only the constituents relevant to the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 and 2, a wastewater treatment apparatus with acid-base neutralization coagulation sedimentation automatic regulation function according to a preferred embodiment of the present invention includes an acid-base neutralization tank 10, a coagulation sedimentation tank 20, a water quality detection tank 30, a neutralizer tank 40, a coagulant tank 50, a chemical injection device 60, and a PLC controller 70.

A water inlet pipe 13 is arranged at the top of the left side of the acid-base neutralization tank 10, and wastewater to be treated enters the acid-base neutralization tank 10 through the water inlet pipe 13; the right bottom of the water quality detection tank 30 is provided with a drain pipe 32 for discharging wastewater with qualified detected water quality, and the drain pipe 32 is provided with an electromagnetic valve 321.

The number of the medicament injection devices 60 is two, wherein one medicament injection device 60 is arranged at the top of the acid-base neutralization tank 10, the top of the medicament injection device is connected with the neutralizer box 40, and the medicament injection device is used for injecting the neutralizer in the neutralizer box 40 into the acid-base neutralization tank 10; the other chemical injection device 60 is provided at the top of the coagulation sedimentation tank 20, and the top thereof is connected to the coagulant tank 50, and is used for injecting the coagulant in the coagulant tank 50 into the coagulation sedimentation tank 20. In this embodiment, the neutralizing agent in the neutralizing agent tank 40 may be selected according to the acidity or alkalinity of the wastewater to be treated, and if the wastewater to be treated is acidic, an alkaline solution is selected as the neutralizing agent, and if the wastewater to be treated is alkaline, an acidic solution is selected as the neutralizing agent.

A PH sensor 11 is arranged in the acid-base neutralization tank 10, and the PH sensor 11 is used for detecting the PH value of the wastewater; a turbidity detector 22 is arranged in the coagulating sedimentation tank 20, and the turbidity detector 22 is used for detecting the turbidity change of the wastewater; the water quality detector 33 is provided in the water quality detection tank 30, and the water quality detector 33 is used for detecting the quality of the wastewater.

The acid-base neutralization tank 10 is connected with the coagulating sedimentation tank 20 through a first pipeline 12, a first water pump 81 is arranged on the first pipeline 12, and the wastewater is subjected to acid-base neutralization treatment in the acid-base neutralization tank 10 and then is pumped into the coagulating sedimentation tank 20 through the first pipeline 12 by the first water pump 81; the coagulating sedimentation tank 20 is connected with the water quality detecting tank 30 through a second pipeline 23, a second water pump 82 is arranged on the second pipeline 23, and the wastewater is subjected to coagulating sedimentation treatment in the coagulating sedimentation tank 20 and then is pumped into the water quality detecting tank 30 through the second pipeline 23 by the second water pump 82; the water quality detection tank 30 is connected with the acid-base neutralization tank 10 through a third pipeline 31, a third water pump 83 is arranged on the third pipeline 31, wastewater is detected to be qualified in the water quality detection tank 30 through a water discharge pipe 32, and the wastewater is not qualified and is conveyed to the acid-base neutralization tank 10 through the third pipeline 31 by the third water pump 83.

The PH sensor 11, the turbidity detector 22, the water quality detector 33, the electromagnetic valve 321, the reagent injection device 60, the first water pump 81, the second water pump 82, and the third water pump 83 are all in communication connection with the PLC controller 70, and are configured to receive detection signals sent by the PH sensor 11, the turbidity detector 22, and the water quality detector 33 and control the operating states of the electromagnetic valve 321, the reagent injection device 60, the first water pump 81, the second water pump 82, and the third water pump 83, so as to automatically adjust the processing processes of acid-base neutralization, coagulating sedimentation, and the like, where the communication connection refers to connection in a signal line or wireless manner to transmit signals.

Specifically, each of the medicine injection devices 60 includes a case 61, an injector 62 provided in the case 61, a driving assembly 63, a tube valve assembly 64, and a switch assembly 65, and the medicine injection devices 60 may be battery-powered.

The injector 62 includes a cylinder 621, a piston 622 disposed in the cylinder 621, a piston rod 623 having one end connected to the piston 622, and a push plate 624 connected to the other end of the piston rod 623. The pipe valve assembly 64 comprises a three-way pipe 641, a first check valve 642 and a second check valve 643, the three-way pipe 641 comprises a first branch pipe, a second branch pipe and a third branch pipe, the first branch pipe extends into the neutralizer tank 40 or the coagulant tank 50, the first check valve 642 is arranged on the first branch pipe, the third branch pipe extends into the acid-base neutralization tank 10 or the coagulation sedimentation tank 20, the second check valve 643 is arranged on the third branch pipe, the second branch pipe is hermetically connected with a liquid outlet of the cylinder 621, and the first check valve 642 is used for enabling the pesticide to flow to the cylinder 621 from the neutralizer tank 40 or the coagulant tank 50 to prevent backflow; the second check valve 643 is used to allow the medicine to flow from the cylinder 621 to the acid-base neutralization tank 10 or the coagulation sedimentation tank 20, thereby preventing the reverse flow. The driving assembly 63 includes a stepping motor 631, a screw rod 632 with one end connected to the output shaft of the stepping motor 631, and a bearing seat 633 rotatably connected to the other end of the screw rod 632, wherein the screw rod 632 passes through the push plate 624 and is connected to the push plate 624 by a screw thread. The switch assembly 65 comprises an upper limit switch 651 and a lower limit switch 652, the upper limit switch 651 and the lower limit switch 652 are respectively located on the upper side and the lower side of the push plate 624, the stepping motor 631, the first check valve 642, the second check valve 643 and the switch assembly 65 are respectively in communication connection with the PLC controller 70, the upper limit switch 651 and the lower limit switch 652 send switch signals to the PLC controller 70, and the PLC controller 70 controls the steering of the stepping motor 631 and the opening and closing of the first check valve 642 and the second check valve 643.

The working principle of the drug injection device 60 is as follows: when a medicament needs to be injected into the acid-base neutralization tank 10 or the coagulating sedimentation tank 20, the PLC controller 70 controls the stepping motor 631 to rotate forward, the stepping motor 631 drives the push plate 624 to move downward through the lead screw 632, when the push plate 624 contacts the lower limit switch 652, the lower limit switch 652 sends a switch signal to the PLC controller 70, the PLC controller 70 controls the stepping motor 631 to rotate backward, the stepping motor 631 drives the push plate 624 to move upward through the lead screw 632, when the push plate 624 contacts the upper limit switch 651, the upper limit switch 651 sends a switch signal to the PLC controller 70, the PLC controller 70 controls the stepping motor 631 to rotate forward, and the above steps are repeated in a circulating manner. When the push plate 624 moves downwards, the piston 622 is driven to move downwards, the medicament in the neutralizing agent tank 40 or the coagulant tank 50 is pumped into the cylinder 621 through the first branch pipe and the second branch pipe, at this time, the PLC controller 70 controls the second one-way valve 643 to be closed, and the first one-way valve 642 is opened; when the push plate 624 moves upwards, the piston 622 is driven to move upwards, the medicament in the cylinder 621 is pushed into the acid-base neutralization tank 10 or the coagulation sedimentation tank 20 through the second branch pipe and the third branch pipe, at this time, the PLC controller 70 controls the second one-way valve 643 to be opened, and the first one-way valve 642 is closed.

Preferably, a first stirring device 14 is arranged in the acid-base neutralization tank 10 and is used for stirring the wastewater during acid-base neutralization so as to accelerate the treatment progress; and a second stirring device 24 is arranged in the coagulating sedimentation tank 20 and is used for stirring the wastewater during coagulating sedimentation so as to accelerate the treatment progress.

Further, a sludge discharge pipe 25 is provided at the bottom of the coagulation sedimentation tank 20 for discharging the generated sediment.

Further, a filter screen 26 is arranged at a water outlet at the bottom of the inner side of the coagulating sedimentation tank 20 and communicated with the second pipeline 23, and is used for filtering particles in the sediment and the wastewater.

When the acid-base neutralization tank is used, wastewater to be treated enters the acid-base neutralization tank 10 through the water inlet pipe 13, the PLC 70 controls one of the agent injection devices 60 to inject a neutralizing agent in the neutralizing agent box 40 into the acid-base neutralization tank 10, so that the neutralizing agent and the wastewater are subjected to acid-base neutralization reaction, the PH sensor 11 detects the PH value of the wastewater, when the PH value of the wastewater is neutral, the PH sensor 11 sends the detected PH value of the wastewater to the PLC 70, the PLC 70 starts the first water pump 81, and the wastewater treated in the acid-base neutralization tank 10 is pumped into the coagulation sedimentation tank 20; then the PLC 70 controls another agent injection device 60 to inject the coagulant in the coagulant box 50 into the coagulating sedimentation tank 20, so that the coagulant reacts with the wastewater to generate coagulating sedimentation, the turbidity detector 22 detects the turbidity change of the wastewater, and the turbidity detector 22 feeds the detected turbidity change information of the wastewater back to the PLC 70, so that the PLC 70 automatically controls the injection amount of the coagulant, thereby improving the purification efficiency and accuracy of the wastewater and avoiding excessive waste of the coagulant by improving the accuracy of the injection amount of the coagulant; after the wastewater is subjected to coagulation sedimentation treatment in the coagulation sedimentation tank 20, the PLC 70 starts the second water pump 82, and the treated wastewater is pumped into the water quality detection tank 30; finally, the water quality detector 33 in the water quality detection tank 30 detects the water quality of the wastewater, the water quality detector 33 sends the detected water quality information to the PLC controller 70, and when the wastewater is qualified after detection, the PLC controller 70 opens the electromagnetic valve 321 on the drain pipe 32 and discharges the wastewater with qualified water quality through the drain pipe 32; if the wastewater is not qualified, the PLC 70 starts a third water pump 83 to convey the unqualified wastewater to the acid-base neutralization tank 10 so as to carry out purification treatment again.

In light of the foregoing description of the preferred embodiments of the present invention, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a take waste water treatment equipment of acid-base neutralization coagulating sedimentation automatically regulated function which characterized in that: the device comprises an acid-base neutralization tank, a coagulating sedimentation tank, a water quality detection tank, a neutralizer box, a coagulant box, two medicament injection devices and a PLC (programmable logic controller), wherein one medicament injection device is arranged at the top of the acid-base neutralization tank, is connected with the neutralizer box and is used for injecting a neutralizer in the neutralizer box into the acid-base neutralization tank; the other agent injection device is arranged at the top of the coagulating sedimentation tank, the top of the agent injection device is connected with the coagulant tank, and the agent injection device is used for injecting the coagulant in the coagulant tank into the coagulating sedimentation tank;

2. The wastewater treatment equipment with acid-base neutralization and coagulation-precipitation automatic regulation function according to claim 1, characterized in that: each medicament injection device comprises a box body, an injector arranged in the box body, a driving component, a pipe valve component and a switch component, wherein the injector comprises a cylinder body, a piston arranged in the cylinder body, a piston rod with one end connected with the piston and a push plate connected with the other end of the piston rod, the pipe valve component comprises a three-way pipe, a first check valve and a second check valve, the three-way pipe comprises a first branch pipe, a second branch pipe and a third branch pipe, the first branch pipe extends into a neutralizer box or a coagulant box, the first check valve is arranged on the first branch pipe, the third branch pipe extends into an acid-base neutralization tank or a coagulation sedimentation tank, the second check valve is arranged on the third branch pipe, the second branch pipe is hermetically connected with a liquid outlet of the cylinder body, the driving component comprises a stepping motor, a lead screw with one end fixedly connected with an output shaft of the stepping motor and a bearing seat rotatably connected with the other end of the lead screw, the lead screw penetrates through the push plate and is in threaded connection with the push plate, the switch assembly comprises an upper limit switch and a lower limit switch, the upper limit switch and the lower limit switch are respectively positioned on the upper side and the lower side of the push plate, and the stepping motor, the first one-way valve, the second one-way valve and the switch assembly are respectively in communication connection with the PLC.

3. The wastewater treatment equipment with acid-base neutralization and coagulation-precipitation automatic regulation function according to claim 1, characterized in that: a water inlet pipe is arranged at the top of the left side of the acid-base neutralization tank, and wastewater to be treated enters the acid-base neutralization tank through the water inlet pipe; the right bottom of the water quality detection tank is provided with a drain pipe for discharging the wastewater with qualified water quality.

4. The wastewater treatment equipment with acid-base neutralization and coagulation-precipitation automatic regulation function according to claim 1, characterized in that: and a first stirring device is arranged in the acid-base neutralization tank, and a second stirring device is arranged in the coagulating sedimentation tank.

5. The wastewater treatment equipment with acid-base neutralization and coagulation-precipitation automatic regulation function according to claim 1, characterized in that: the bottom of the coagulating sedimentation tank is provided with a sludge discharge pipe, and the bottom of the inner side of the coagulating sedimentation tank is provided with a filter screen at a water outlet communicated with the second pipeline.