An automatic dosing device for industrial water treatment

Abstract

The application relates to the technical field of industrial water treatment, and discloses an automatic dosing device for industrial water treatment. A baffle is vertically and slidably arranged in a water tank, and the baffle divides the internal space of the water tank into an upper water chamber and a lower water chamber. The water tank is provided with a driving element for driving the baffle to slide. A liquid mixing assembly is provided with a first sub-chamber and a second sub-chamber which can be filled with water. When the baffle moves downward, the water in the upper water chamber enters the first sub-chamber and is mixed with the flocculant in the first sub-chamber, and the solution in the second sub-chamber flows into the upper water chamber. When the baffle moves upward, the water in the lower water chamber enters the second sub-chamber and is mixed with the flocculant in the second sub-chamber, and the solution in the first sub-chamber flows into the lower water chamber. The automatic dosing device for industrial water treatment improves the treatment efficiency of industrial water through the reciprocating sliding of the baffle. The water and the flocculant are pre-mixed in the first sub-chamber or the second sub-chamber, so that the flocculant is more uniformly mixed with the water in the water tank.

Description

Technical Field

[0001] This invention relates to the field of industrial water treatment technology, and more specifically to an automatic dosing device for industrial water treatment. Background Technology

[0002] Industrial water treatment refers to the process of treating water used in industrial production to meet water quality standards required for production. This process encompasses multiple aspects, including physical treatment, chemical treatment, and biological treatment. Physical treatment mainly removes suspended solids, plankton, and other particulate matter from the water through processes such as clarification, filtration, sedimentation, and ion exchange. Commonly used chemical agents include disinfectants, pH adjusters, flocculants, and chelating agents, which help to further purify the water. Biological treatment utilizes biological methods to remove organic matter from the water.

[0003] In some related technologies, water treatment equipment first introduces industrial water into a tank, then adds flocculant powder. The flocculant then reacts with the industrial water to form a coagulation solution. After the reaction, the industrial water is discharged. This process involves three steps during the coagulation reaction: influent, reaction, and discharge. Consequently, the industrial water can only undergo batch-by-batch reactions, preventing continuous operation and reducing treatment efficiency. Furthermore, flocculant powder is difficult to disperse in water and cannot react fully with the industrial water. Summary of the Invention

[0004] This invention provides an automatic dosing device for industrial water treatment, which aims to solve the problems of low treatment efficiency of industrial water and insufficient reaction between flocculant and industrial water in related technologies.

[0005] The present invention discloses an automatic dosing device for industrial water treatment, comprising a frame, a water tank, and a dispensing assembly. The water tank is mounted on the frame and has a vertically sliding partition inside, which divides the internal space of the water tank into an upper water chamber and a lower water chamber. The water tank is equipped with a first water supply pump and a first water pump communicating with the upper water chamber, and a second water supply pump and a second water pump communicating with the lower water chamber. The water tank is equipped with a driving component for driving the partition to slide. Multiple dispensing assemblies are located within the water tank. Each dispensing assembly has a first compartment and a second compartment for water to enter and exit. When the partition moves downward, water from the upper water chamber enters the first compartment and mixes with the flocculant in the first compartment, while the solution in the second compartment flows into the upper water chamber. When the partition moves upward, water from the lower water chamber enters the second compartment and mixes with the flocculant in the second compartment, while the solution in the first compartment flows into the lower water chamber.

[0006] Preferably, the liquid dispensing assembly includes a rotary cylinder that extends vertically and is rotatably installed inside the water tank. The rotary cylinder is helically driven by the partition plate. The rotary cylinder forms a first compartment and a second compartment, each of which is equipped with a draining unit. The draining unit includes a rotating shaft and a push plate. The rotating shaft is rotatably installed inside the rotary cylinder and is connected to the water tank via a gear mechanism so that when the rotating shaft revolves with the rotary cylinder, it can rotate under the action of the gear mechanism. The push plate is sleeved on the rotating shaft and threadedly connected to it. When the partition plate moves downward, the push plate in the first compartment moves downward, and the push plate in the second compartment moves upward. When the partition plate moves upward, the push plate in the first compartment moves upward, and the push plate in the second compartment moves downward.

[0007] Preferably, the drainage unit further includes a conduit extending vertically and slidably passing through the push plate. The bottom end of the conduit communicates with the outer side of the rotary cylinder. The rotary cylinder is provided with an inlet check valve connecting the top end and the outer side of the first compartment, and an outlet check valve connecting the top end and the outer side of the second compartment. When the partition moves down, water in the upper water chamber enters the first compartment through the inlet check valve, and the solution in the second compartment is pushed into the upper water chamber by the outlet check valve. When the partition moves up, the solution in the first compartment is pushed into the lower water chamber by the conduit, and water in the lower water chamber is drawn into the second compartment by the conduit.

[0008] Preferably, the top wall of the water tank is provided with a dosing chamber, and the bottom surface of the dosing chamber is provided with a number of outlets that are equal to and correspond one-to-one with the liquid dispensing components. The top walls of the first sub-chamber and the second sub-chamber are provided with inlets. When the first sub-chamber and the second sub-chamber revolve, the inlets of the first sub-chamber and the inlets of the second sub-chamber can be connected to the corresponding outlets in sequence. A solenoid valve is installed at the inlet.

[0009] Preferably, a hopper is inserted above the dosing chamber, and a slide is vertically slidably connected to the frame. An insertion tube, an air pump, and a medicine storage box are installed on the slide. The insertion tube extends vertically, and the top end of the insertion tube is connected to the medicine storage box through the air pump.

[0010] Preferably, the bottom surface of the dosing chamber has a slope.

[0011] Preferably, the top end of the rotating shaft is provided with an impeller opposite to the drug inlet, and the impeller is used to guide the flocculant entering through the drug inlet downward.

[0012] Preferably, multiple blades are evenly distributed on the rotating shaft, the blades and the rotating shaft are elastically slidably connected, and the upper and lower sides of the blades are provided with inclined surfaces. When the push plate moves vertically, it can cause the blades to retract through the inclined surfaces and pass over the blades.

[0013] Preferably, the gear mechanism includes a central gear and several gears. A fixed shaft is coaxially arranged inside the rotary drum. The two ends of the fixed shaft extend to both sides and are fixedly connected to the top wall and bottom wall of the water tank, respectively. The central gear is mounted on the fixed shaft. There are two several gears, which are coaxially connected to the rotating shaft in the first compartment and the rotating shaft in the second compartment, respectively. The several gears mesh with the central gear.

[0014] Preferably, the driving component includes a lead screw and a motor. The lead screw extends vertically and is rotatably mounted inside the water tank. The lead screw passes through the partition and is threadedly connected to the partition. The motor is mounted on the water tank and is used to drive the lead screw to rotate.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0016] As the baffle slides up and down, it allows for the alternating mixing and discharge of water from the upper and lower water chambers, enabling continuous operation of the water tank. This integrates the existing inlet-reaction-drainage process into a single timeframe, significantly improving the efficiency of industrial water treatment. Furthermore, the water and flocculant are mixed in the first or second compartment before being discharged into the main tank, facilitating flocculant dispersion and ensuring a more complete reaction between the flocculant and the industrial water. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the automatic dosing device for industrial water treatment according to the present invention.

[0018] Figure 2 This is a three-dimensional schematic diagram of the water tank to motor section of the present invention.

[0019] Figure 3 This is a three-dimensional cross-sectional view of the water tank portion of the present invention.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the liquid preparation component of the present invention.

[0021] Figure 5 This is the invention Figure 4 Enlarged diagram of point A in the middle.

[0022] Figure 6 This is a schematic diagram of the structure of the shaft to the gear section of the present invention.

[0023] Figure 7This is a three-dimensional cross-sectional view of the rotary drum portion of the present invention.

[0024] Figure 8 This is a three-dimensional schematic diagram of the rotary drum to the outlet check valve section of the present invention.

[0025] Figure label:

[0026] 1. Frame; 11. Carriage; 111. Insertion tube;

[0027] 2. Water tank; 21. Baffle plate; 22. Upper water chamber; 221. First water supply pump; 222. First water pump; 23. Lower water chamber; 231. Second water supply pump; 232. Second water pump; 24. Dosing chamber; 241. Dosing outlet; 25. Hopper; 26. Fixed shaft; 261. Central gear; 27. Motor; 28. Lead screw;

[0028] 3. Liquid dispensing assembly; 31. Rotary drum; 311. Center plate; 312. First compartment; 3121. Inlet check valve; 313. Second compartment; 3131. Outlet check valve; 314. Shaft; 3141. Gear; 3142. Conical wheel; 3143. Blade; 3144. Receptacle; 315. Push plate; 316. Guide tube; 317. Solenoid valve; 318. Blade plate; 3181. Inclined surface;

[0029] 4. Sedimentation tank;

[0030] 5. Filter box;

[0031] 6. Disinfection box;

[0032] 7. pH adjustment chamber. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] The following is combined with Figures 1 to 8 The present invention describes an automatic chemical dosing device for industrial water treatment.

[0035] Example 1, as Figures 1 to 8 As shown, the automatic dosing device for industrial water treatment of the present invention includes a frame 1, a water tank 2, and a liquid dispensing assembly 3.

[0036] Water tank 2 is mounted on frame 1, and a partition 21 slides vertically inside it, dividing the internal space of water tank 2 into an upper water chamber 22 and a lower water chamber 23. A first water supply pump 221 and a first water pump 222, communicating with the upper water chamber 22, are located above water tank 2, and a second water supply pump 231 and a second water pump 232, communicating with the lower water chamber 23, are located below water tank 2. Water tank 2 is equipped with a driving component for driving the partition 21 to slide. Specifically, the driving component includes a lead screw 28 and a motor 27. The lead screw 28 extends vertically and is located in the central area inside water tank 2, with both ends rotatably connected to water tank 2. The lead screw 28 passes through the partition 21 and is threadedly connected to the partition 21. The motor 27 is mounted on water tank 2 and connected to the lead screw 28. The motor 27 drives the lead screw 28 to rotate, and when the lead screw 28 rotates, it can drive the partition 21 to move up and down.

[0037] Multiple liquid dispensing components 3 are located within the water tank 2, and are evenly distributed along the circumference of the central lead screw 28. Each liquid dispensing component 3 includes a rotary cylinder 31, which extends vertically and is rotatably mounted within the water tank 2. The rotary cylinder 31 passes through a partition 21, and its outer peripheral wall is provided with a spiral groove. The partition 21 is provided with a spiral push rod that engages within the spiral groove. The rotary cylinder 31 has a vertical central plate 311, which divides the internal space of the rotary cylinder 31 into a first chamber 312 and a second chamber 313. Both the first chamber 312 and the second chamber 313 are equipped with drainage units. Here, we will use one of the drainage units as an example for explanation.

[0038] The drainage unit includes a rotating shaft 314, a push plate 315, and a conduit 316. The rotating shaft 314 extends vertically and is rotatably mounted inside the rotary drum 31. The rotating shaft 314 is connected to the water tank 2 via a gear mechanism. The push plate 315 is sleeved on the rotating shaft 314 and threadedly connected to the rotating shaft 314. The surface of the push plate 315 is semi-circular. The conduit 316 extends vertically and slides through the push plate 315. The bottom end of the conduit 316 is bent to one side and communicates with the external space of the rotary drum 31. Specifically, the conduit 316 communicates with the lower water chamber 23 and is fixed to the rotary drum 31. A drain check valve is installed on the conduit 316 of the first chamber 312, and a water inlet check valve is installed on the conduit 316 of the second chamber 313.

[0039] The circumferential wall of the rotary drum 31 is provided with an inlet check valve 3121, which connects the top of the first chamber 312 to the external space. The circumferential wall of the rotary drum 31 is provided with an outlet check valve 3131, which connects the top of the second chamber 313 to the external space.

[0040] The top wall of the water tank 2 is provided with a dosing chamber 24. The bottom surface of the dosing chamber 24 has a slope, and the bottom surface is provided with a number of outlets 241 that are equal to and correspond one-to-one with the liquid dispensing components 3. The top walls of the first sub-chamber 312 and the second sub-chamber 313 are provided with inlets. When the first sub-chamber 312 and the second sub-chamber 313 revolve, the inlets of the first sub-chamber 312 and the second sub-chamber 313 can be connected to the corresponding outlets 241 in sequence. A solenoid valve 317 is installed at the inlet, and the solenoid valve 317 is used to control the opening and closing of the inlet.

[0041] A hopper 25 is inserted above the dosing chamber 24 and is connected to the dosing chamber 24. A slide 11 is vertically slidably connected to the frame 1. Specifically, the frame 1 is provided with a vertical electric guide rail, and the slide 11 is slidably engaged on the electric guide rail. An insertion tube 111, an air pump, and a medicine storage box are installed on the slide 11. The insertion tube 111 extends vertically, and the top end of the insertion tube 111 is connected to the medicine storage box through the air pump. The bottom end of the insertion tube 111 is used to insert into the discharge port at the bottom of the hopper 25.

[0042] Initially, the insertion tube 111 is inserted downward into the discharge port of the hopper 25 via the electric guide rail control. Then, the air pump is started to draw the flocculant in the storage box into the dosing chamber 24. It is worth noting that the flocculant is in powder form. Under the slope of the bottom surface of the dosing chamber 24 and the air pressure of the air pump, the flocculant flows towards the discharge port 241.

[0043] Next, motor 27 starts, driving partition 21 downwards via lead screw 28. This increases the space in upper water chamber 22 and decreases the space in lower water chamber 23, allowing the first water pump 221 to supply industrial water to upper water chamber 22. As partition 21 moves downwards, it drives rotary drum 31 to rotate via helical push rod and helical groove. Rotary drum 31 drives shaft 314 in the first compartment 312 and shaft 314 in the second compartment 313 to revolve around each other. Under the action of the gear mechanism, shaft 314 also rotates on its own axis. Shaft 314 drives push plate 315 to move. At this time, push plate 315 in the first compartment 312 moves downwards, and push plate 315 in the second compartment 313 moves upwards. Water from upper water chamber 22 enters first compartment 312 through inlet check valve 3121 and is positioned above push plate 315 in first compartment 312.

[0044] At the same time, the solenoid valve 317 of the first compartment 312 can be opened. Understandably, the solenoid valve 317 of the second compartment 313 is closed at this time, and the inlet of the first compartment 312 is opened. When the inlet is rotated to the outlet 241 position, the flocculant at the outlet 241 flows into the first compartment 312 through the inlet and mixes with the water in the first compartment 312 to form a solution.

[0045] Subsequently, motor 27 drives partition 21 to move upward, reducing the space of upper water chamber 22 and increasing the space of lower water chamber 23. First water pump 222 draws water out of upper water chamber 22, while second water supply pump 231 supplies industrial water to lower water chamber 23. Simultaneously, partition 21 drives rotary drum 31 and shaft 314 to reverse. At this time, push plate 315 in first chamber 312 moves upward, and push plate 315 in second chamber 313 moves downward. Push plate 315 in first chamber 312 compresses the space above it and pushes the solution into lower water chamber 23 through conduit 316 and drain check valve. The solution mixes with the water in lower water chamber 23 and undergoes a coagulation reaction with the industrial water in lower water chamber 23.

[0046] When the push plate 315 in the second compartment 313 moves downward, the space above the second compartment 313 increases. Under the action of the pressure difference, the water in the lower water chamber 23 flows into the second compartment 313 through the conduit 316 and the inlet check valve, and is positioned above the push plate 315 in the second compartment 313. At this time, the solenoid valve 317 of the second compartment 313 opens and closes the solenoid valve 317 of the first compartment 312. The flocculant in the dosing chamber 24 begins to flow into the second compartment 313 and mixes with the water in the second compartment 313.

[0047] Similarly, when motor 27 drives partition 21 to move downward again, the water that has reacted with the solution in lower water chamber 23 is discharged outward. Upper water chamber 22 expands, and the first water supply pump 221 supplies water to it. At this time, rotary drum 31 and shaft 314 rotate, push plate 315 in first chamber 312 moves downward, and push plate 315 in second chamber 313 moves upward. Water in upper water chamber 22 enters first chamber 312 through inlet check valve 3121 and is positioned above push plate 315. At the same time, solenoid valve 317 of first chamber 312 opens, and flocculant enters first chamber 312 and forms a solution with the water inside. When push plate 315 in second chamber 313 moves upward, it can push the solution above into upper water chamber 22 through outlet check valve 3131, thereby achieving mixing of water and solution in upper water chamber 22, while the solution undergoes coagulation reaction with industrial water in upper water chamber 22.

[0048] As can be seen from the above, during the reciprocating sliding of the baffle 21, the water in the upper water chamber 22 and the lower water chamber 23 can alternately react and be discharged, thus realizing the continuous operation of the water tank 2. This integrates the existing water inlet-reaction-drainage process into a single time period, significantly improving the treatment efficiency of industrial water. Furthermore, the water and flocculant are mixed in the rotary drum 31 before being discharged into the water tank 2, facilitating the dispersion of the flocculant and ensuring a more complete reaction with the industrial water in the tank 2. In addition, the entry of industrial water into the tank and the discharge of the solution from the rotary drum 31 are simultaneous, allowing the discharged solution to mix with the newly entered industrial water in real time, further enhancing the completeness of the reaction.

[0049] The gear mechanism includes a central gear 261 and two auxiliary gears 3141. A fixed shaft 26 is coaxially mounted inside the rotary drum 31. Both ends of the fixed shaft 26 extend to the sides and are fixedly connected to the top and bottom walls of the water tank 2, respectively. The central gear 261 is mounted on the fixed shaft 26. There are two auxiliary gears 3141, which are coaxially connected to the rotating shaft 314 in the first cavity 312 and the rotating shaft 314 in the second cavity 313, respectively. The auxiliary gears 3141 mesh with the central gear 261.

[0050] When the rotary drum 31 drives the rotating shaft 314 to revolve, the rotating shaft 314 drives the dividing gear 3141 to rotate around the axis of the central gear 261. Under the meshing action of the dividing gear 3141 and the central gear 261, the dividing gear 3141 will rotate on its own axis, and drive the rotating shaft 314 to rotate on its own axis. The rotating shaft 314 thereby controls the push plate 315 to move up and down.

[0051] The top of the rotating shaft 314 is equipped with an impeller opposite the inlet. The impeller includes a conical wheel 3142 and blades 3143. The conical wheel 3142 is coaxially connected to the rotating shaft 314, with its tip pointing upwards. There are multiple blades 3143, evenly distributed along the circumference of the conical wheel 3142, and each blade 3143 is connected to the conical wheel 3142. When the rotating shaft 314 rotates, it drives the conical wheel 3142 and blades 3143 to rotate. The blades 3143 guide the flocculant entering from the inlet downwards, helping the flocculant to disperse and facilitating mixing with the water in the rotating drum 31.

[0052] It is worth noting that, in addition to water tank 2, the automatic dosing device for industrial water treatment in this embodiment may also include multiple reaction tanks. These reaction tanks are arranged laterally with water tank 2, and are connected in series, allowing water to pass through sequentially. The multiple reaction tanks may include a sedimentation tank 4, a filter tank 5, a disinfection tank 6, a pH adjustment tank 7, etc., which, combined with water tank 2, enable graded water treatment. The structures and implementation methods of sedimentation tank 4, filter tank 5, disinfection tank 6, and pH adjustment tank 7 are conventional technologies in the art and will not be described in detail here.

[0053] To enhance the mixing efficiency of water and flocculant within the rotary drum 31, this invention also provides Example 2.

[0054] Implementation 2, based on Implementation 1, continues to refer to... Figures 4 to 6 Multiple blades 318 are evenly distributed on the rotating shaft 314. The blades 318 and the rotating shaft 314 are elastically slidably connected. Specifically, the circumferential surface of the rotating shaft 314 is provided with an inwardly recessed receiving groove 3144. The blades 318 slide radially within the receiving groove 3144 along the rotating shaft 314. The blades 318 and the rotating shaft 314 are connected by a return spring. Both the upper and lower sides of the blades 318 are provided with inclined surfaces 3181.

[0055] When the rotating shaft 314 rotates, it drives the blade 318 to rotate. The blade 318 stirs the water and flocculant in the rotating drum 31, increasing the mixing force of the water and flocculant and making the two mix more evenly. When the push plate 315 moves vertically, it can retract the blade 318 through the inclined surface 3181. When the blade 318 is completely retracted into the receiving groove 3144, it avoids the push plate 315, and the push plate 315 can pass over the blade 318.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic dosing device for industrial water treatment comprising a frame (1), characterized in that, Also include: Water tank (2), the water tank (2) is installed to the rack (1), and its inside vertical sliding fit has the partition (21), the partition (21) divides the inside space of the water tank (2) into upper water chamber (22) and lower water chamber (23), the water tank (2) is equipped with the first water supply pump (221) and the first water pump (222) with the upper water chamber (22) communication, the water tank (2) is equipped with the second water supply pump (231) and the second water pump (232) with the lower water chamber (23) communication, the water tank (2) is equipped with the drive member for driving the sliding of the partition (21);Liquid distribution assembly (3), the liquid distribution assembly (3) has multiple and is all located in the water tank (2), the liquid distribution assembly (3) has the first sub-cavity (312) and the second sub-cavity (313) that can enter and exit water, when the partition (21) is lowered, the water in the upper water chamber (22) enters the first sub-cavity (312) and is mixed with the flocculating agent of the first sub-cavity (312), the solution in the second sub-cavity (313) flows into the upper water chamber (22);When the partition (21) is raised, the water in the lower water chamber (23) enters the second sub-cavity (313) and is mixed with the flocculating agent of the second sub-cavity (313), the solution of the first sub-cavity (312) flows into the lower water chamber (23); The liquid distribution assembly (3) includes a rotating drum (31), the rotating drum (31) extends vertically and is rotatably installed in the water tank (2), the rotating drum (31) is spiral transmission with the partition (21), the first sub-cavity (312) and the second sub-cavity (313) are formed in the rotating drum (31), the first sub-cavity (312) and the second sub-cavity (313) are each provided with a liquid discharge unit, the liquid discharge unit includes: a rotating shaft (314), the rotating shaft (314) is rotatably installed in the rotating drum (31), the rotating shaft (314) is connected with the water tank (2) through a gear mechanism, so that when the rotating shaft (314) revolves with the rotating drum (31), the rotating shaft (314) can rotate under the action of the gear mechanism;Push plate (315), the push plate (315) is sleeved on the rotating shaft (314) and is threadedly connected with the rotating shaft (314), when the partition (21) is lowered, the push plate (315) in the first sub-cavity (312) is lowered, and the push plate (315) in the second sub-cavity (313) is raised;When the partition (21) is raised, the push plate (315) in the first sub-cavity (312) is raised, and the push plate (315) in the second sub-cavity (313) is lowered. The liquid discharging unit further comprises a conduit (316) extending vertically and slidingly arranged on the push plate (315), a bottom end of the conduit (316) being in communication with the outside of the rotary cylinder (31), the rotary cylinder (31) being provided with a water inlet one-way valve (3121) in communication with the top end and the outside of the first sub-cavity (312) and a water outlet one-way valve (3131) in communication with the top end and the outside of the second sub-cavity (313); when the partition plate (21) moves downward, water in the upper water chamber (22) enters the first sub-cavity (312) through the water inlet one-way valve (3121), and solution in the second sub-cavity (313) is pushed into the upper water chamber (22) through the water outlet one-way valve (3131); when the partition plate (21) moves upward, solution in the first sub-cavity (312) is pushed into the lower water chamber (23) through the conduit (316), and water in the lower water chamber (23) is sucked into the second sub-cavity (313) through the conduit (316); The top wall of the water tank (2) is provided with a dosing cavity (24), a bottom surface of the dosing cavity (24) is provided with a number of dosing outlets (241) equal to the number of the liquid preparation assemblies (3) and corresponding to the liquid preparation assemblies (3) one by one, the top walls of the first sub-cavity (312) and the second sub-cavity (313) are provided with dosing inlets, the dosing inlets of the first sub-cavity (312) and the second sub-cavity (313) can be in communication with the corresponding dosing outlets (241) in sequence when the first sub-cavity (312) and the second sub-cavity (313) rotate, and an electromagnetic valve (317) is installed at the dosing inlets.

2. The automatic dosing device for industrial water treatment according to claim 1, characterized in that, A hopper (25) is inserted above the dosing cavity (24), a slide frame (11) is vertically and slidingly connected to the rack (1), a spigot (111), an air pump and a medicine storage box are installed on the slide frame (11), the spigot (111) extends vertically, and a top end of the spigot (111) is in communication with the medicine storage box through the air pump.

3. The automatic dosing device for industrial water treatment according to claim 1, characterized in that, The bottom surface of the dosing cavity (24) has a slope.

4. The automatic dosing device for industrial water treatment according to claim 1, characterized in that, A top end of the rotating shaft (314) is provided with an impeller opposite to the dosing inlet, the impeller is used for guiding the flocculating agent entering through the dosing inlet downward.

5. The automatic dosing device for industrial water treatment according to claim 4, characterized in that, A plurality of lamellas (318) are uniformly distributed on the rotating shaft (314), the lamellas (318) and the rotating shaft (314) are elastically and slidingly connected, both sides of the lamellas (318) are provided with inclined surfaces (3181), and the lamellas (318) can be retracted and pass over the lamellas (318) through the inclined surfaces (3181) when the push plate (315) moves vertically.

6. The industrial water treatment dosing apparatus of claim 1, wherein, The gear mechanism comprises: A central gear (261) is coaxially arranged in the rotary drum (31), and the fixed shaft (26) extends to the top wall and the bottom wall of the water tank (2) respectively and is fixedly connected with the top wall and the bottom wall of the water tank (2), and the central gear (261) is sleeved on the fixed shaft (26); two split gears (3141) are coaxially connected with the rotating shaft (314) in the first sub-cavity (312) and the rotating shaft (314) in the second sub-cavity (313) respectively, and the split gears (3141) are engaged with the central gear (261).

7. The industrial water treatment dosing apparatus of claim 1, wherein, The driving member comprises: A lead screw (28) vertically extends and is rotatably installed in the water tank (2), the lead screw (28) penetrates through the partition plate (21) and is threadedly connected with the partition plate (21); and a motor (27) is installed on the water tank (2) and is used for driving the lead screw (28) to rotate.

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