Efficient fluorine removal agent adding structure and low-concentration fluorine-containing wastewater treatment system

Abstract

The invention relates to the technical field of wastewater treatment, in particular to an efficient fluorine removal agent adding structure and a low-concentration fluorine-containing wastewater treatment system.The efficient fluorine removal agent adding structure comprises a mounting frame, the mounting frame is mounted on a reaction cylinder through a mounting assembly, and the reaction cylinder is connected with a fluorine removal agent storage tank; the adding assembly comprises an adding mechanism and a stirring mechanism; the alkali liquor filling assembly comprises a pH detection mechanism, a triggering mechanism and a filling mechanism; the cleaning assembly comprises a reciprocating motion mechanism and a cleaning block; the PAM adding assembly is used for quantitatively outputting PAM to the reaction cylinder when the cleaning assembly works; by integrating a plurality of components, accurate control, efficient mixing, real-time monitoring, automatic adjustment, equipment maintenance and flow optimization in the wastewater treatment process are realized, so that the wastewater treatment efficiency and quality are remarkably improved, the operation cost is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a high-efficiency defluorination agent dosing structure and a low-concentration fluorine-containing wastewater treatment system. Background Art

[0002] The low-concentration fluoride-containing wastewater treatment system is a treatment system specially designed for wastewater with a fluoride ion concentration of ≤20mg / L. It reduces the fluoride ion concentration to the national emission standard through processes such as chemical precipitation, adsorption or coagulation. The dosing device in the existing low-concentration fluoride-containing wastewater treatment system often uses mechanical dosing to add defluoridating agents. The mechanical dosing with a fixed flow rate cannot adapt to water quality fluctuations, resulting in local excessive dosage of agents and secondary pollution. The manual adjustment of pH and the delay in the addition of alkali solution affect the efficiency of precipitation formation. At the same time, in long-term use, the dosing device is prone to blockage and corrosion, which increases equipment maintenance and operating costs. Summary of the Invention

[0003] The object of the present invention is to provide a high-efficiency defluorination agent dosing structure and a low-concentration fluorine-containing wastewater treatment system to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] On the one hand, a high-efficiency defluorination agent addition structure is provided, comprising:

[0006] A mounting frame, the mounting frame being mounted on the reaction cylinder through a mounting assembly, the reaction cylinder being connected to a defluorination agent storage tank, the defluorination agent storage tank being used to store the defluorination agent;

[0007] A dosing assembly, comprising a dosing mechanism and a stirring mechanism, wherein when the stirring mechanism stirs the wastewater in the reaction cylinder, the dosing mechanism inputs the defluorinating agent into the reaction cylinder when the stirring mechanism is in operation;

[0008] an alkali solution filling assembly, the alkali solution filling assembly comprising a pH detection mechanism, a trigger mechanism, and a filling mechanism, the pH detection mechanism being used to detect the pH value in the reaction cylinder, the trigger mechanism being used to trigger and open the filling mechanism when the pH value needs to be adjusted, and the filling mechanism being used to add alkali solution to the reaction cylinder;

[0009] A cleaning assembly, the cleaning assembly comprising a reciprocating mechanism and a cleaning block, the reciprocating mechanism being used to drive the cleaning block to perform reciprocating motion so as to scrape and clean the attachments on the stirring mechanism;

[0010] A PAM adding component is used to quantitatively output PAM to the reaction cylinder when the cleaning component is working.

[0011] Preferably, the mounting assembly includes angle irons and fastening bolts, the angle irons are fixedly connected to both sides of the mounting frame, and the fastening bolts are used to mount the angle irons on the reaction cylinder.

[0012] Preferably, the stirring mechanism includes a stirring motor, a main shaft and a stirring rod. The stirring motor is arranged on the mounting frame. The stirring motor is used to drive the main shaft to rotate. A plurality of stirring rods are arranged at equal intervals around the main shaft.

[0013] Preferably, the main shaft is provided with an installation cavity, the dosing mechanism includes a flow pump, a connecting bearing, a connecting ring, a main delivery pipe, a small delivery pipe and a one-way valve, the flow pump is connected to the defluorination agent storage tank, the flow pump is connected to the connecting ring through a pipeline, the connecting bearing is coaxially connected to the main shaft, the connecting ring is connected to the connecting bearing, the connecting ring is provided with an annular cavity, several main delivery pipes are connected to the annular cavity, the main delivery pipe is inserted in the installation cavity, each main delivery pipe is connected to several small delivery pipes, each small delivery pipe is connected to several one-way valves, and the one-way valve is provided on the stirring rod.

[0014] Preferably, the pH detection mechanism includes a pH sensor, and the pH sensor is used to detect the pH value in the reaction cylinder.

[0015] Preferably, the trigger mechanism includes a trigger push rod, a piston rod and a pressure sensor, and the filling mechanism includes a release box, an alkali solution storage box, a metering pump, a connecting block and a diaphragm valve. The trigger push rod is arranged on one side of the main shaft, the piston rod is connected to the movable end of the trigger push rod, the release box is arranged on one side of the reaction cylinder, a trigger chamber is arranged inside the release box, the movable end of the piston rod is connected to the trigger chamber, the pressure sensor is arranged in the trigger chamber, the connecting block is arranged in the release box, the alkali solution storage box is connected to the connecting block through the metering pump, and the connecting block is connected to several diaphragm valves. When the piston rod presses the pressure sensor, the metering pump will start, and when the metering pump starts, the alkali solution will be input into the reaction cylinder through the diaphragm valve.

[0016] Preferably, the reciprocating motion mechanism includes a moving push rod, a mounting block, a clamping spring and a clamping block. The moving push rod is arranged corresponding to the stirring rod. The mounting block is arranged at the moving end of the moving push rod. Clamping blocks are symmetrically arranged on both sides of the mounting block. Each clamping block is connected to a cleaning block. The clamping spring is arranged corresponding to the clamping block. The clamping spring is used to drive the symmetrically arranged cleaning blocks to clamp the stirring rod.

[0017] Preferably, the PAM adding component includes a self-resetting switch, a storage box, a discharging motor, a discharging ring and an electromagnetic opening valve, the storage box is connected to the clamping block, the self-resetting switch is arranged on the storage box, the storage box is provided with a storage chamber and a transmission chamber, the storage chamber and the transmission chamber are connected to each other, the storage chamber is used to store PAM, the discharging motor is arranged on the storage box, the discharging motor is used to drive the discharging ring to rotate, the discharging ring is arranged in the transmission chamber, the discharging ring is provided with a plurality of discharging holes, when the discharging hole rotates to the connecting port of the storage chamber and the transmission chamber, PAM will enter the discharging hole under the action of centrifugal force, the electromagnetic opening valve is used to control the opening and closing of the outlet of the transmission chamber, and the discharging ring is driven by the discharging motor to rotate to the outlet of the transmission chamber for inputting PAM into the reaction cylinder.

[0018] On the other hand, a low-concentration fluorine-containing wastewater treatment system is provided, comprising the above-mentioned high-efficiency defluorination agent addition structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application, through the provision of a dosing component, synchronously completes the dosing of the defluorinating agent when the stirring mechanism is running, which can effectively promote the full mixing of the wastewater and the defluorinating agent, improve the reaction efficiency, ensure that the defluorinating agent is evenly distributed in the wastewater, and thus enhance the treatment effect; at the same time, the pH value of the wastewater is detected according to the pH detection mechanism, and the amount of alkali solution added is automatically adjusted according to the feedback of the pH detection mechanism, to maintain the stability of the treatment environment and ensure that the defluorination reaction is carried out under suitable acid-base conditions; the stirring mechanism in the reaction cylinder is cleaned by the cleaning component and the PAM adding component is turned on to quantitatively add flocculant to the reaction cylinder, thereby promoting the coagulation and sedimentation of suspended matter in the wastewater; the present invention realizes precise control, efficient mixing, real-time monitoring, automatic adjustment, equipment maintenance and process optimization of the wastewater treatment process by integrating multiple components such as dosing, stirring, pH detection, alkali solution filling, cleaning and flocculant addition, thereby significantly improving the efficiency and quality of wastewater treatment, reducing operating costs, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall assembly axial structure of the present invention;

[0021] Figure 2 Schematic diagram of the internal structure of the reaction tube of the present invention (the reaction tube is processed in perspective);

[0022] Figure 3 This is a schematic diagram of the connection structure between the main shaft and the stirring rod of the present invention;

[0023] Figure 4 Schematic diagram of the connection structure of the connecting ring, connecting bearing and conveying block of the present invention (the connecting ring is cross-sectionally viewed);

[0024] Figure 5 This is a schematic diagram of the connection structure of the main delivery pipe, the small delivery pipe and the one-way valve of the present invention;

[0025] Figure 6 Schematic diagram of the internal structure of the release box of the present invention (the release box is processed in perspective);

[0026] Figure 7 This is a schematic diagram of the reciprocating motion mechanism structure of the present invention (with the mounting block shown in perspective);

[0027] Figure 8 Schematic diagram of the internal structure of the storage box of the present invention (the storage box is shown in perspective).

[0028] In the figure: 1 mounting frame, 2 reaction cylinder, 3 defluorination agent storage tank, 4 cleaning block, 5 angle iron, 6 fastening bolt, 7 stirring motor, 8 main shaft, 9 stirring rod, 10 flow pump, 11 connecting bearing, 12 connecting ring, 13 conveying main pipe, 14 conveying small pipe, 15 one-way valve, 16 pH sensor, 17 trigger push rod, 18 piston rod, 19 pressure sensor, 20 release box, 21 alkali solution storage box, 22 metering pump, 23 connecting block, 24 diaphragm valve, 25 moving push rod, 26 mounting block, 27 clamping spring, 28 clamping block, 29 self-reset switch, 30 storage box, 31 discharging motor, 32 discharging ring, 33 electromagnetic opening valve, 1201 conveying block, 3001 storage chamber, 3201 discharging hole. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-8 , the present invention provides a technical solution:

[0031] A high-efficiency defluorination agent dosing structure, as shown in the attached instructions Figure 1 As shown, including:

[0032] A mounting frame 1, the size of which can be adjusted according to the size of the reaction barrel 2, is mounted on the reaction barrel 2 through a mounting assembly, the reaction barrel 2 is used for treating wastewater, and the reaction barrel 2 is connected to a defluorination agent storage tank 3, which is used to store the defluorination agent;

[0033] The dosing component includes a dosing mechanism and a stirring mechanism. When the stirring mechanism stirs the wastewater in the reaction cylinder 2, the dosing mechanism inputs the defluorination agent into the reaction cylinder 2;

[0034] Alkali solution filling assembly, which includes a pH detection mechanism, a trigger mechanism and a filling mechanism. The pH detection mechanism is used to detect the pH value in the reaction cylinder 2. The trigger mechanism is used to trigger the filling mechanism to open when the pH value needs to be adjusted. The filling mechanism is used to add alkali solution to the reaction cylinder 2;

[0035] The cleaning assembly includes a reciprocating motion mechanism and a cleaning block 4. The reciprocating motion mechanism is used to drive the cleaning block 4 to reciprocate so as to scrape and clean the attachments on the stirring mechanism;

[0036] The PAM adding component is used to output PAM to the reaction cylinder 2 in a quantitative manner when the cleaning component is working.

[0037] The mounting assembly includes angle irons 5 and fastening bolts 6. The angle irons 5 are used to mount the mounting frame 1 on the reaction tube 2. The angle irons 5 are fixedly connected to both sides of the mounting frame 1 by bolts. The fastening bolts 6 are used to fix the angle irons 5 to the reaction tube 2.

[0038] The stirring mechanism includes a stirring motor 7, a main shaft 8 and a stirring rod 9. The stirring motor 7 is a three-phase asynchronous motor and can operate under high load for a long time. The stirring motor 7 is fixedly connected to the mounting frame 1. The output end of the stirring motor 7 is fixedly connected to the main shaft 8. The stirring motor 7 is used to drive the main shaft 8 to rotate. Several stirring rods 9 are arranged at equal intervals around the main shaft 8. The stirring rods 9 are fixedly connected to the main shaft 8.

[0039] The main shaft 8 is provided with an installation cavity, which is used to install the delivery main pipe 13. The dosing mechanism includes a flow pump 10, a connecting bearing 11, a connecting ring 12, a delivery block 1201, a delivery main pipe 13, a delivery tube 14 and a one-way valve 15. The flow pump 10 is connected to the defluorination agent storage tank 3. The flow pump 10 is used to input the defluorination agent into the annular cavity of the connecting ring 12. The defluorination agent in the annular cavity is finally input into the reaction cylinder 2 through the one-way valve 15 through the transmission of the delivery main pipe 13 and the delivery tube 14. The flow pump 10 is connected to the connecting ring 12 through a pipeline. The pipeline connected to the output port of the flow pump 10 and the annular cavity are connected to each other. The connecting bearing 11 is coaxially connected to the main shaft 8. The connecting bearing 11 is connected to the main shaft 8. It is used to prevent the connecting ring 12 from moving with the main shaft 8. The inner ring of the connecting bearing 11 is fixedly connected to the main shaft 8. The connecting ring 12 is fixedly connected to the outer ring of the connecting bearing 11. The connecting ring 12 is provided with an annular cavity. The annular cavity is used to transport the defluoridating agent. The transport block 1201 is rotatably connected to the annular cavity. The transport main pipe 13 is a double-layer structure. Liquid is transported through the area enclosed by the double-layer structure. The transport main pipe 13 is connected to the annular cavity through the transport block 1201. The transport main pipe 13 is inserted into the installation cavity. Each transport main pipe 13 is connected to a number of small transport tubes 14. Each small transport tube 14 is connected to a number of one-way valves 15. The one-way valve 15 is provided on the stirring rod 9.

[0040] The pH detection mechanism includes a pH sensor 16 . The pH sensor 16 is fixedly connected to the reaction cylinder 2 . The pH sensor 16 is used to detect the pH value in the reaction cylinder 2 .

[0041] The trigger mechanism includes a trigger push rod 17, a piston rod 18 and a pressure sensor 19. The filling mechanism includes a release box 20, an alkali solution storage box 21, a metering pump 22, a connecting block 23 and a diaphragm valve 24. The trigger push rod 17 is a hydraulic push rod. The trigger push rod 17 is used to drive the piston rod 18 to move. The trigger push rod 17 is fixedly connected to one side of the main shaft 8. The piston rod 18 is fixedly connected to the moving end of the trigger push rod 17. The release box 20 is fixedly connected to the bottom of the reaction cylinder 2. A trigger chamber is provided inside the release box 20. The moving end of the piston rod 18 is movably connected to the trigger chamber. When the trigger push rod 17 is extended, the piston rod 18 is driven to press against the pressure sensor 19. The pressure sensor 19 is arranged at the bottom of the trigger chamber. The connecting block 23 is arranged on the release box 20. The connecting block 23 is a cross-shaped structure. The alkali solution storage box 21 is connected to the connecting block 23 through the metering pump 22. The output end of the connecting block 23 is connected to a plurality of diaphragm valves 24. The diaphragm valve 24 can only output in one direction. When the piston rod 18 presses the pressure sensor 19, the metering pump 22 will start. When the metering pump 22 is started, the alkali solution will be quantitatively input into the reaction cylinder 2 through the diaphragm valve 24.

[0042] The reciprocating motion mechanism includes a moving push rod 25, a mounting block 26, a clamping spring 27 and a clamping block 28. The moving push rod 25 is a hydraulic push rod. The moving push rod 25 is used to drive the mounting block 26 to move. The moving push rod 25 is arranged corresponding to the stirring rod 9. The mounting block 26 is arranged at the moving end of the moving push rod 25. Clamping blocks 28 are symmetrically arranged on both sides of the mounting block 26. The clamping blocks 28 are used to drive the cleaning blocks 4 to clamp the stirring rod 9. Each clamping block 28 is connected to a cleaning block 4. The clamping spring 27 is arranged corresponding to the clamping block 28. The clamping spring 27 is used to drive the symmetrically arranged cleaning blocks 4 to clamp the stirring rod 9.

[0043] The PAM adding component includes a self-resetting switch 29, a storage box 30, a discharging motor 31, a discharging ring 32 and an electromagnetic opening valve 33. The storage box 30 is connected to the clamping block 28. The storage box 30 is used to install other parts of the PAM adding component. The self-resetting switch 29 is set in the storage box 30. The storage box 30 is provided with a storage cavity 3001 and a transmission cavity. The storage cavity 3001 and the transmission cavity are connected to each other. The storage cavity 3001 is used to store PAM. The discharging motor 31 is set in the storage box 30. The discharging motor 31 is a rotary servo motor that can perform precise position adjustment. Therefore, it will accurately drive the discharging hole 3201 and the storage cavity 3001 and The connecting ports of the transmission chamber are docked with each other, and the discharge motor 31 is used to drive the discharge ring 32 to rotate. The discharge ring 32 is arranged in the transmission chamber, and the discharge ring 32 is provided with a plurality of discharge holes 3201. When the discharge hole 3201 rotates to the connecting port of the storage chamber 3001 and the transmission chamber, under the action of centrifugal force, the PAM in the storage chamber 3001 will enter the discharge hole 3201 of the discharge ring 32. The electromagnetic opening valve 33 is used to control the opening and closing of the outlet of the transmission chamber. The discharge motor 31 drives the discharge ring 32 to rotate to the outlet of the transmission chamber to input the PAM into the reaction cylinder 2. PAM needs to decide whether to use cationic or anionic type according to the water quality of the wastewater to be treated.

[0044] Working principle: This system is designed based on wastewater with a fluoride ion content of less than 6 mg / L. When in use, add defluoridation agent in the ratio of fluoride content: defluoridation agent = 1 mg: 0.18 mL;

[0045] Before use, the stirring motor 7 is turned on first. The stirring motor 7 drives the stirring rod 9 to rotate through the stirring main shaft 8. The stirring motor 7 drives the main shaft 8 to rotate, and the defluorinating agent is pumped into the annular cavity of the connecting ring 12 by turning on the flow pump 10. The defluorinating agent in the annular cavity is transferred through the delivery main pipe 13 and the delivery small pipe 14 and finally output through the one-way valve 15. It is quickly and evenly distributed in the wastewater following the movement of the stirring rod 9;

[0046] After the reaction, according to the pH value detected by the pH sensor 16, the trigger push rod 17 is activated to drive the piston rod 18 to press the pressure sensor 19. When the piston rod 18 presses the pressure sensor 19, the metering pump 22 is activated. When the metering pump 22 is activated, the alkali solution is quantitatively input into the reaction cylinder 2 through the diaphragm valve 24. The number of times the piston rod 18 is pressed can be determined according to the detected pH value.

[0047] After the pH adjustment is completed, the stirring motor 7 slows down, the moving push rod 25 starts and drives the cleaning block 4 to clean the stirring rod 9. When the moving push rod 25 drives the cleaning block 4 to move to the end of the stirring rod 9 away from the main shaft 8, the self-reset switch 29 will be pressed through the mounting block 26 and the discharge motor 31 will be started. When the discharge motor 31 drives the discharge ring 32 with PAM to rotate to the outlet of the transmission chamber, the electromagnetic opening valve 33 opens to input the PAM into the reaction cylinder 2.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency defluorination agent dosing structure, characterized in that: include: A mounting frame, the mounting frame being mounted on the reaction cylinder through a mounting assembly, the reaction cylinder being connected to a defluorination agent storage tank, the defluorination agent storage tank being used to store the defluorination agent; A dosing assembly, comprising a dosing mechanism and a stirring mechanism, wherein when the stirring mechanism stirs the wastewater in the reaction cylinder, the dosing mechanism inputs the defluorinating agent into the reaction cylinder when the stirring mechanism is in operation; an alkali solution filling assembly, the alkali solution filling assembly comprising a pH detection mechanism, a trigger mechanism, and a filling mechanism, the pH detection mechanism being used to detect the pH value in the reaction cylinder, the trigger mechanism being used to trigger and open the filling mechanism when the pH value needs to be adjusted, and the filling mechanism being used to add alkali solution to the reaction cylinder; A cleaning assembly, the cleaning assembly comprising a reciprocating mechanism and a cleaning block, the reciprocating mechanism being used to drive the cleaning block to perform reciprocating motion so as to scrape and clean the attachments on the stirring mechanism; A PAM adding component is used to quantitatively output PAM to the reaction cylinder when the cleaning component is working.

2. The high-efficiency defluorination agent dosing structure according to claim 1, characterized in that: The mounting assembly includes angle irons and fastening bolts. The angle irons are fixedly connected to both sides of the mounting frame. The fastening bolts are used to mount the angle irons on the reaction cylinder.

3. The high-efficiency defluorination agent dosing structure according to claim 1, characterized in that: The stirring mechanism includes a stirring motor, a main shaft and stirring rods. The stirring motor is arranged on the mounting frame and is used to drive the main shaft to rotate. A plurality of stirring rods are arranged at equal intervals around the main shaft.

4. The high-efficiency defluorination agent dosing structure according to claim 3, characterized in that: The main shaft is provided with an installation cavity, and the dosing mechanism includes a flow pump, a connecting bearing, a connecting ring, a main delivery pipe, a small delivery pipe and a one-way valve. The flow pump is connected to the defluorination agent storage tank, and the flow pump is connected to the connecting ring through a pipeline. The connecting bearing is coaxially connected to the main shaft, and the connecting ring is connected to the connecting bearing. The connecting ring is provided with an annular cavity, and several main delivery pipes are connected to the annular cavity. The main delivery pipes are inserted into the installation cavity, and each main delivery pipe is connected to several small delivery pipes. Each small delivery pipe is connected to several one-way valves, and the one-way valve is provided on the stirring rod.

5. The high-efficiency defluorination agent dosing structure according to claim 4, characterized in that: The pH detection mechanism includes a pH sensor, and the pH sensor is used to detect the pH value in the reaction cylinder.

6. The high-efficiency defluorination agent dosing structure according to claim 5, characterized in that: The trigger mechanism includes a trigger push rod, a piston rod and a pressure sensor; the filling mechanism includes a release box, an alkali solution storage box, a metering pump, a connecting block and a diaphragm valve; the trigger push rod is arranged on one side of the main shaft; the piston rod is connected to the movable end of the trigger push rod; the release box is arranged on one side of the reaction cylinder; a trigger chamber is arranged inside the release box; the movable end of the piston rod is connected to the trigger chamber; the pressure sensor is arranged in the trigger chamber; the connecting block is arranged in the release box; the alkali solution storage box is connected to the connecting block via a metering pump; the connecting block is connected to several diaphragm valves; when the piston rod presses the pressure sensor, the metering pump will start; when the metering pump starts, the alkali solution will be input into the reaction cylinder through the diaphragm valve.

7. The high-efficiency defluorination agent dosing structure according to claim 6, characterized in that: The reciprocating motion mechanism includes a moving push rod, a mounting block, a clamping spring and a clamping block. The moving push rod is arranged corresponding to the stirring rod. The mounting block is arranged at the moving end of the moving push rod. Clamping blocks are symmetrically arranged on both sides of the mounting block. Each clamping block is connected to a cleaning block. The clamping spring is arranged corresponding to the clamping block. The clamping spring is used to drive the symmetrically arranged cleaning blocks to clamp the stirring rod.

8. The high-efficiency defluorination agent dosing structure according to claim 7, characterized in that: The PAM adding component includes a self-resetting switch, a storage box, a discharging motor, a discharging ring and an electromagnetic opening valve. The storage box is connected to the clamping block. The self-resetting switch is arranged on the storage box. The storage box is provided with a storage chamber and a transmission chamber. The storage chamber and the transmission chamber are connected to each other. The storage chamber is used to store PAM. The discharging motor is arranged on the storage box. The discharging motor is used to drive the discharging ring to rotate. The discharging ring is arranged in the transmission chamber. The discharging ring is provided with a plurality of discharging holes. When the discharging hole rotates to the connecting port of the storage chamber and the transmission chamber, PAM will enter the discharging hole under the action of centrifugal force. The electromagnetic opening valve is used to control the opening and closing of the outlet of the transmission chamber. The discharging ring is driven by the discharging motor to rotate to the outlet of the transmission chamber for inputting PAM into the reaction cylinder.

9. A low-concentration fluorine-containing wastewater treatment system, characterized by: The invention comprises the high-efficiency defluorination agent adding structure according to any one of claims 1 to 8.

Images