A diversification intelligent dosing device for a flotation process

Abstract

The utility model discloses a kind of diversification intelligent dosing device for flotation process, belong to mine dosing technical field, including three dosing systems, respectively system A, system B, system C;Dosing system all includes stirring barrel, metering pump;Stirring barrel peripheral portion distance stirring barrel bottom end setting distance place is fixed with dosing pipe, dosing pipe output end connects metering pump;Metering pump dosing end connects conveying pipeline;System A metering pump adopts peristaltic pump, system B metering pump adopts screw pump, system C metering pump adopts diaphragm pump;It also includes PLC control cabinet, all metering pumps, all electric valves, all electromagnetic flowmeters are electrically connected with PLC control cabinet;System A, system B, system C are independently controlled by PLC control cabinet.Control.Various kinds of medicaments are different in viscosity, solubility, addition flow size, delivery head etc., using single type dosing device to add medicament, there is the problem of high failure rate, poor precision.

Description

Technical Field

[0001] This utility model belongs to the field of mine reagent dosing technology, specifically relating to a diversified intelligent reagent dosing device for flotation processes. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In mineral processing, chemical reagents are added to specific flotation systems to capture and extract target minerals. The amount and method of addition have a crucial impact on beneficiation efficiency and concentrate quality. Traditional dosing methods are mostly manual or simple mechanical dosing devices, which have problems such as inaccurate dosage control, high labor intensity, and harsh working environment that may harm workers' health.

[0004] The prior art discloses an automatic dosing device, including a stirring tank, a metering pump and an electrical control box; the discharge port of the stirring tank and the liquid inlet of the metering pump are connected through a dosing pipe, and the operation of the stirrer and the metering pump are controlled by electrical control components in the electrical control box.

[0005] The dosing device disclosed in the above scheme can overcome the problems of traditional manual dosing, but it still has the following drawbacks:

[0006] In mineral processing, different types of reagents are required. Different types of reagents have different viscosity, solubility, addition flow rate, and conveying head. The dosing device in the above scheme is a single type of dosing device. During dosing, there may be problems such as the dosing device and reagent performance not matching, which may lead to failure to dosing normally or poor accuracy. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide a diversified intelligent dosing device for flotation processes, which can solve the problem in the prior art where the dosing device is a single type of dosing device, and the dosing device and the reagent performance are mismatched, resulting in failure to dosing normally or poor accuracy.

[0008] To achieve the above objectives, in some embodiments, the present invention adopts the following technical solutions:

[0009] A multi-functional intelligent dosing device for flotation processes includes three identical dosing systems, namely System A, System B, and System C; each dosing system includes a stirring tank and a metering pump.

[0010] A water inlet pipe is installed at the top of the mixing tank, and an electromagnetic flow meter is installed on the water inlet pipe. An electric valve is installed between the electromagnetic flow meter and the mixing tank. A medicine outlet pipe is fixed at a set distance from the bottom of the mixing tank around its periphery. The output end of the medicine outlet pipe is connected to a metering pump. The medicine outlet end of the metering pump is connected to a delivery pipeline. The metering pump in system A is a peristaltic pump, the metering pump in system B is a screw pump, and the metering pump in system C is a diaphragm pump.

[0011] It also includes a PLC control cabinet, and all metering pumps, all electric valves, and all electromagnetic flowmeters are electrically connected to the PLC control cabinet; System A, System B, and System C are independently controlled by the PLC control cabinet.

[0012] Preferably, a drive motor is mounted on the top of the mixing tank, and a stirring shaft is fixed at the output end of the drive motor. Multiple stirring impellers are axially mounted on the stirring shaft. The stirring shaft is located inside the mixing tank and is coaxially arranged with the mixing tank. All drive motors are electrically connected to the PLC control cabinet.

[0013] Preferably, a level switch is installed at a set distance from the bottom of the mixing tank around its perimeter, and all level switches are electrically connected to the PLC control cabinet; the height of the dispensing pipe is the same as that of the level switch.

[0014] Preferably, a double-oil ball valve is installed between the inlet end of the metering pump and the outlet pipe, and a double-oil ball valve is installed between the outlet end of the metering pump and the delivery pipeline.

[0015] Preferably, a drain pipe is also fixed on the periphery of the mixing tank. The drain pipe is located below the liquid level switch and a drain valve is installed on the drain pipe. The drain valve is normally closed. A dispensing valve is installed on the dispensing pipe. The dispensing valve is normally open. When cleaning the mixing tank, the drain valve is opened and the dispensing valve is closed.

[0016] In other embodiments, the present invention adopts the following technical solutions:

[0017] A multi-functional intelligent dosing device for flotation processes includes a mixing tank and a metering pump system; an inlet pipe is installed on the top of the mixing tank, an electromagnetic flow meter is installed on the inlet pipe, and an electric valve is installed between the electromagnetic flow meter and the mixing tank; a dispensing pipe is fixed at a set distance from the bottom of the mixing tank around the periphery of the mixing tank, and the output end of the dispensing pipe is connected to the metering pump system.

[0018] The metering pump system includes peristaltic pumps, screw pumps, and diaphragm pumps; the peristaltic pumps, screw pumps, and diaphragm pumps are connected in parallel at the output end of the drug delivery pipe;

[0019] It also includes a PLC control cabinet, and the metering pump system, electric valves, and electromagnetic flowmeters are all electrically connected to the PLC control cabinet; the peristaltic pump, screw pump, and diaphragm pump are independently controlled by the PLC control cabinet.

[0020] Preferably, a drive motor is mounted on the top of the mixing tank, and a stirring shaft is fixed at the output end of the drive motor. Multiple stirring impellers are axially mounted on the stirring shaft. The stirring shaft is located inside the mixing tank and is coaxially arranged with the mixing tank. The drive motor is electrically connected to the PLC control cabinet.

[0021] Preferably, a level switch is installed at a set distance from the bottom of the mixing tank around its perimeter, and the level switch is electrically connected to the PLC control cabinet; the height of the dispensing pipe is the same as that of the level switch.

[0022] Preferably, the drug outlet pipe is connected to the drug inlet of the peristaltic pump, screw pump, or diaphragm pump via a four-way connector, and the drug outlet of the peristaltic pump, screw pump, or diaphragm pump is connected to the delivery pipeline; a double-oil ball valve is installed between the drug inlet of the peristaltic pump, screw pump, or diaphragm pump and the drug outlet pipe, and a double-oil ball valve is installed between the drug outlet of the peristaltic pump, screw pump, or diaphragm pump and the delivery pipeline.

[0023] Preferably, a drain pipe is also fixed on the periphery of the mixing tank. The drain pipe is located below the liquid level switch and a drain valve is installed on the drain pipe. The drain valve is normally closed. A dispensing valve is installed on the dispensing pipe. The dispensing valve is normally open. When cleaning the mixing tank, the drain valve is opened and the dispensing valve is closed.

[0024] Compared with the prior art, the advantages and positive effects of this utility model are:

[0025] This invention solves the problems of high failure rate and poor accuracy in the prior art by setting up three dosing systems: System A is suitable for small flow rate and low head of the original liquid agent; System B is suitable for large flow rate, high head and high viscosity of the prepared agent; and System C is suitable for medium flow rate, medium head and particle-containing agent transportation.

[0026] This invention solves the problems of high failure rate and poor accuracy in the prior art when adding different types of drugs with different viscosity, solubility, addition flow rate, and delivery head using a single type of dosing device. When adding a small flow rate and low head stock solution to the mixing tank, only the peristaltic pump participates in drug delivery, while the screw pump and diaphragm pump are shut down. When the drug in the mixing tank is a large flow rate, high head, and high viscosity drug, only the screw pump participates in drug delivery, while the peristaltic pump and diaphragm pump are shut down. When the drug in the mixing tank is a medium flow rate, medium head, and contains particles, only the diaphragm pump participates in drug delivery, while the peristaltic pump and screw pump are shut down. Attached Figure Description

[0027] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0028] Figure 1 This is a schematic diagram of the dosing device according to Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the dosing device according to Embodiment 2 of this utility model;

[0030] In the picture:

[0031] 1. First drive motor; 2. First mixing tank; 3. First mixing shaft; 4. First mixing impeller; 5. First metering pump; 6. First dispensing valve; 7. First drain valve; 8. First level switch; 9. First electric valve; 10. First electromagnetic flowmeter; 11. Second drive motor; 12. Second mixing tank; 13. Second mixing shaft; 14. Second mixing impeller; 15. Second metering pump; 16. Second dispensing valve; 17. Second drain valve; 18. Second level switch; 19. Second electric valve; 20. Second electromagnetic flowmeter; 21. Third drive motor; 22. Third mixing tank; 23. Third mixing shaft; 24. Third mixing impeller; 25. Third metering pump; 26. Third dispensing valve; 27. Third drain valve; 28. Third level switch; 29. ​​Third electric valve; 30. Third electromagnetic flowmeter; 31. PLC control cabinet; 32. Metering pump system. Detailed Implementation

[0032] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0033] Definitions:

[0034] Peristaltic pump: A peristaltic pump uses rotating rollers or sliders to squeeze a flexible tube, creating a partial vacuum inside the tube, thereby drawing fluid into the tube. As the rollers or sliders rotate, the fluid is continuously squeezed out, thus transporting the fluid; just like squeezing a soft rubber tube filled with liquid with your fingers to make the liquid flow forward.

[0035] Screw pumps utilize the rotation of a screw to draw in and discharge liquids. The screw fits tightly against the inner wall of the bushing, creating one or more sealed spaces between the pump's inlet and outlet. As the screw rotates and engages, these sealed spaces are continuously formed at the inlet, sealing the liquid in the inlet chamber and continuously pushing it along the screw axis to the outlet, thus achieving liquid transport.

[0036] Diaphragm pump: It relies on the back-and-forth movement of the diaphragm to change the volume of the working chamber, thereby drawing in and discharging liquid; when the diaphragm moves backward, the volume of the working chamber increases, creating negative pressure, the suction valve opens, and the liquid is drawn in; when the diaphragm moves forward, the volume of the working chamber decreases, the pressure increases, the discharge valve opens, and the liquid is discharged.

[0037] The present invention will now be described in detail with reference to the accompanying drawings.

[0038] Example 1

[0039] This embodiment discloses a diversified intelligent dosing device for flotation processes, such as... Figure 1 As shown, it includes three dosing systems, namely System A, System B, and System C; each dosing system includes a mixing tank and a metering pump.

[0040] In this embodiment, the three dosing systems are identical in structure and connection except for the metering pump. The structure of the dosing system is described using system A as an example:

[0041] like Figure 1 As shown, system A includes a first mixing tank 2 and a first metering pump 5; a first water inlet pipe is installed on the top of the first mixing tank 2 for adding water into the first mixing tank and stirring the medicine through the first mixing tank 2.

[0042] In this embodiment, a first electromagnetic flow meter 10 is installed on the first water inlet pipe, and a first electric valve 9 is installed between the first electromagnetic flow meter 10 and the first stirring tank 2. The first electromagnetic flow meter 10 is used to monitor the flow rate of the liquid flowing through the first water inlet pipe, and the first electric valve 9 is used to control the connection or disconnection between the first water inlet pipe and the first stirring tank.

[0043] like Figure 1 As shown, a first dispensing pipe is fixed at a set distance from the bottom of the first mixing tank 2 around its periphery. The output end of the first dispensing pipe is connected to the first metering pump 5. The dispensing end of the first metering pump 5 is used to connect to the delivery pipeline.

[0044] like Figure 1 As shown, a first drive motor 1 is mounted on the top of the first mixing tank 2, and the output end of the first drive motor 1 is fixedly connected to the first stirring shaft 3. Multiple first stirring impellers 4 are mounted axially on the first stirring shaft 3. The first stirring shaft 3 is located inside the first mixing tank 2 and is coaxially arranged with the first mixing tank 2.

[0045] like Figure 1As shown, a first liquid level switch 8 is installed at a set distance from the bottom of the first mixing tank 2 around its periphery; the first liquid level switch 8 is used to monitor the liquid level in the first mixing tank 2. In this embodiment, the first dispensing pipe and the first liquid level switch are set at the same height, both located at a distance of ten centimeters from the bottom of the first mixing tank 2 around its periphery.

[0046] In this embodiment, a double-oil ball valve is installed between the inlet end of the first metering pump 5 and the first outlet pipe to facilitate later maintenance and repair; a double-oil ball valve is installed between the outlet end of the first metering pump 5 and the delivery pipeline to protect the metering pump and cut off the fluid.

[0047] like Figure 1 As shown, a first drain pipe is fixed to the periphery of the first mixing tank 2. The first drain pipe is located below the first liquid level switch 8, and a first drain valve 7 is installed on the first drain pipe. The first drain valve 7 is normally closed. A first dispensing valve 6 is also installed on the first dispensing pipe. The first dispensing valve 6 is normally open. When it is necessary to clean the first mixing tank 2, the first drain valve 7 is opened and the first dispensing valve 6 is closed at the same time.

[0048] like Figure 1 As shown, in this embodiment, system B includes a second drive motor 11, a second stirring tank 12, a second stirring shaft 13, a second stirring impeller 14, a second metering pump 15, a second dispensing valve 16, a second drain valve 17, a second level switch 18, a second electric valve 19, and a second electromagnetic flowmeter 20; the connection relationship of the above components in system B is the same as that in system A.

[0049] like Figure 1 As shown, in this embodiment, system B includes a third drive motor 21, a third stirring tank 22, a third stirring shaft 23, a third stirring impeller 24, a third metering pump 25, a third dispensing valve 26, a third drain valve 27, a third level switch 28, a third electric valve 29, and a third electromagnetic flowmeter 30; the connection relationship of the above components in system C is the same as that in system A.

[0050] The first metering pump 5 is a peristaltic pump, the second metering pump 15 is a screw pump, and the third metering pump 25 is a diaphragm pump.

[0051] In this embodiment, system A uses a peristaltic pump, which is suitable for small flow rates and low head of the original liquid agent, and has the advantage of precise dosing; system B uses a screw pump, which is suitable for large flow rates, high head, and high viscosity of the prepared agent, and can also ensure control accuracy under the conditions of large flow rate, high head, and high viscosity delivery; system C uses a diaphragm pump, which is suitable for medium flow rate, medium head, and delivery of agents containing particles.

[0052] like Figure 1As shown, a diversified intelligent dosing device for flotation processes also includes a PLC control cabinet 31, in which all metering pumps, all level switches, all electric valves, and all electromagnetic flowmeters are electrically connected to the PLC control cabinet.

[0053] It should be noted that systems A, B, and C are independently controlled by PLC control cabinet 31.

[0054] In this embodiment, the PLC control cabinet 31 includes a touch screen. The water volume for systems A, B, and C is set via the touch screen. When the electromagnetic flowmeter in system A, B, or C detects that the water flow rate in the corresponding inlet pipe has reached the set water volume, the PLC control cabinet 31 controls the corresponding electric valve to close. The stirring time of the drive motors in systems A, B, and C is set via the touch screen. When the drive motors in systems A, B, and C reach their running time, the PLC control cabinet 31 controls the corresponding drive motor to stop. After the stirring ends, the corresponding metering pump starts.

[0055] In this embodiment, when the liquid level in the corresponding mixing tank drops to the height of the corresponding liquid level switch, the PLC control cabinet obtains the low liquid level in the mixing tank monitored by the corresponding liquid level switch. At this time, the PLC control cabinet controls the corresponding electric valve to replenish water.

[0056] In this embodiment, three dosing systems are set up: System A is suitable for small flow rate and low head of the original liquid agent; System B is suitable for large flow rate, high head and high viscosity of the prepared agent; and System C is suitable for medium flow rate, medium head and agent containing particles. This solves the problem in the prior art that different types of agents have different viscosity, solubility, addition flow rate and conveying head, and using a single type of dosing device for addition often results in high failure rate and poor accuracy.

[0057] Example 2

[0058] This embodiment discloses a diversified intelligent dosing device for flotation processes, including a first stirring tank 2, which is connected to a metering pump system 32 via a first dispensing pipe; as shown below. Figure 2 As shown, a water inlet pipe is installed on the top of the first mixing tank for adding water to the first mixing tank. In this embodiment, a first electromagnetic flow meter 10 is installed on the first water inlet pipe, and a first electric valve 9 is installed between the first electromagnetic flow meter 10 and the first mixing tank 2. The first electromagnetic flow meter 10 is used to monitor the flow rate of the liquid flowing through the first water inlet pipe, and the first electric valve 9 is used to control the connection or disconnection between the first water inlet pipe and the first mixing tank 2.

[0059] A first drug outlet pipe is fixed at a set distance from the bottom of the first mixing tank 2 around its periphery. The output end of the first drug outlet pipe is connected to the metering pump system 32. In this embodiment, the metering pump system 32 includes a peristaltic pump, a screw pump, and a diaphragm pump. The peristaltic pump, screw pump, and diaphragm pump are connected in parallel at the output end of the first drug outlet pipe.

[0060] like Figure 2 As shown, a diversified intelligent dosing device for flotation processes also includes a PLC control cabinet 31. A metering pump system 32, a first electric valve 9, and a first electromagnetic flowmeter 10 are all electrically connected to the PLC control cabinet 31. In this embodiment, the peristaltic pump, screw pump, and diaphragm pump in the metering pump system 32 are each connected to the PLC control cabinet 31. The peristaltic pump, screw pump, or diaphragm pump is independently controlled by the PLC control cabinet, which can control the start or stop of the peristaltic pump, screw pump, or diaphragm pump.

[0061] In this embodiment, when the agent in the first mixing tank 2 is a low-flow, low-head agent, only the peristaltic pump participates in conveying the agent, while the screw pump and diaphragm pump are turned off; when the agent in the first mixing tank 2 is a high-flow, high-head, high-viscosity agent, only the screw pump participates in conveying the agent, while the peristaltic pump and diaphragm pump are turned off; when the agent in the first mixing tank 2 is a medium-flow, medium-head agent containing particles, only the diaphragm pump participates in conveying the agent, while the peristaltic pump and screw pump are turned off.

[0062] like Figure 2 As shown, a first drive motor 1 is mounted on the top of the first mixing tank 2. The output end of the first drive motor 1 is fixedly connected to a first stirring shaft 3. Multiple first stirring impellers 4 are axially mounted on the first stirring shaft 3. The first stirring shaft 3 is located inside the first mixing tank 2 and is coaxially arranged with the first mixing tank 2. The reagent is stirred through the first mixing tank 2. The first drive motor 1 is electrically connected to a PLC control cabinet 31, which controls the start / stop of the first drive motor 1.

[0063] like Figure 2 As shown, a first liquid level switch 8 is installed at a set distance from the bottom of the first mixing tank 2 around its periphery. The first liquid level switch 8 is electrically connected to the PLC control cabinet 31. The first liquid level switch 8 is used to monitor the liquid level in the first mixing tank 2 and transmit the monitoring information to the PLC control cabinet 31.

[0064] In this embodiment, the PLC control cabinet 31 includes a touch screen. The water volume is set via the touch screen. When the water flow rate monitored by the first electromagnetic flowmeter 10 in the first inlet pipe reaches the set water volume, the PLC control cabinet 31 controls the first electric valve 9 to close. The stirring time of the first drive motor 1 is set via the touch screen. When the first drive motor 1 reaches its running time, the PLC control cabinet 31 controls the first drive motor 1 to stop.

[0065] In this embodiment, when the liquid level in the first stirring tank 2 drops to the height of the first liquid level switch 8, the PLC control cabinet detects that the liquid level in the first stirring tank 2 monitored by the first liquid level switch 8 is low. At this time, the PLC control cabinet controls the first electric valve 9 to replenish water. In this embodiment, the first dispensing pipe and the first liquid level switch are set at the same height, both located on the periphery of the first stirring tank, ten centimeters from the bottom of the first stirring tank.

[0066] In this embodiment, as Figure 2 As shown, the first drug outlet pipe is connected to the metering pump system 32 via a four-way connector, and is connected to the drug inlet of the peristaltic pump, screw pump, and diaphragm pump via the four-way connector. The drug outlet of the peristaltic pump, screw pump, and diaphragm pump is used to connect to the delivery pipeline.

[0067] In this embodiment, a double-oil ball valve is installed between the inlet end of the peristaltic pump, screw pump, and diaphragm pump and the four-way connector to facilitate later maintenance and repair; a double-oil ball valve is installed between the outlet end of the peristaltic pump, screw pump, and diaphragm pump and the delivery pipeline to protect the metering pump and cut off the fluid.

[0068] like Figure 2 As shown, a first drain pipe is fixed to the periphery of the first mixing tank 2. The first drain pipe is located below the first liquid level switch 8, and a first drain valve 7 is installed on the first drain pipe. The first drain valve 7 is normally closed. A first dispensing valve 6 is also installed on the first dispensing pipe. The first dispensing valve 6 is normally open. When it is necessary to clean the first mixing tank 2, the first drain valve 7 is opened and the first dispensing valve 6 is closed at the same time.

[0069] In this embodiment, a metering pump system, including a peristaltic pump, a screw pump, and a diaphragm pump, is connected to the outlet pipe of the mixing tank. When a small flow rate and low head of the original liquid agent is added to the first mixing tank, only the peristaltic pump participates in the agent delivery, while the screw pump and diaphragm pump are turned off. When the agent in the first mixing tank 2 is a large flow rate, high head, and high viscosity agent, only the screw pump participates in the agent delivery, while the peristaltic pump and diaphragm pump are turned off. When the agent in the first mixing tank 2 is a medium flow rate, medium head, and particulate agent, only the diaphragm pump participates in the agent delivery, while the peristaltic pump and screw pump are turned off. This solves the problem in the prior art where different types of agents have different viscosity, solubility, addition flow rate, and delivery head, and using a single type of dosing device for addition often results in high failure rates and poor accuracy.

[0070] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A diversified intelligent dosing device for flotation processes, characterized in that, It includes three identical dosing systems, namely System A, System B, and System C; each of the dosing systems includes a mixing tank and a metering pump; A water inlet pipe is installed at the top of the mixing tank, and an electromagnetic flow meter is installed on the water inlet pipe. An electric valve is installed between the electromagnetic flow meter and the mixing tank. A medicine outlet pipe is fixed at a set distance from the bottom of the mixing tank around its periphery, and the output end of the medicine outlet pipe is connected to a metering pump. The medicine outlet of the metering pump is connected to a delivery pipeline. In system A, the metering pump is a peristaltic pump; in system B, the metering pump is a screw pump; and in system C, the metering pump is a diaphragm pump. It also includes a PLC control cabinet, and all the metering pumps, all the electric valves, and all the electromagnetic flowmeters are electrically connected to the PLC control cabinet; System A, System B, and System C are independently controlled by the PLC control cabinet.

2. The diversified intelligent dosing device for flotation process as described in claim 1, characterized in that, A drive motor is mounted on the top of the mixing tank, and a stirring shaft is fixed at the output end of the drive motor. Multiple stirring impellers are axially mounted on the stirring shaft. The stirring shaft is located inside the mixing tank and is coaxially arranged with the mixing tank. All drive motors are electrically connected to the PLC control cabinet.

3. The diversified intelligent dosing device for flotation process as described in claim 2, characterized in that, A liquid level switch is installed at a set distance from the bottom of the mixing tank around its periphery, and all liquid level switches are electrically connected to the PLC control cabinet; the height of the drug outlet pipe is the same as that of the liquid level switch.

4. A diversified intelligent dosing device for flotation processes as described in claim 3, characterized in that, A double-oil ball valve is installed between the inlet end of the metering pump and the outlet pipe, and a double-oil ball valve is installed between the outlet end of the metering pump and the delivery pipe.

5. A diversified intelligent dosing device for flotation processes as described in claim 4, characterized in that, A drain pipe is fixed around the periphery of the mixing tank. The drain pipe is located below the liquid level switch and is equipped with a drain valve, which is normally closed. A dispensing valve is installed on the dispensing pipe, which is normally open. When cleaning the mixing tank, the drain valve is opened and the dispensing valve is closed.

6. A diversified intelligent dosing device for flotation processes, characterized in that, The system includes a mixing tank and a metering pump system. A water inlet pipe is installed on the top of the mixing tank, and an electromagnetic flow meter is installed on the water inlet pipe. An electric valve is installed between the electromagnetic flow meter and the mixing tank. A medicine outlet pipe is fixed at a set distance from the bottom of the mixing tank around the periphery of the mixing tank, and the output end of the medicine outlet pipe is connected to the metering pump system. The metering pump system includes a peristaltic pump, a screw pump, and a diaphragm pump; the peristaltic pump, screw pump, and diaphragm pump are connected in parallel at the output end of the drug outlet pipe; It also includes a PLC control cabinet, and the metering pump system, electric valves, and electromagnetic flowmeters are all electrically connected to the PLC control cabinet; the peristaltic pump, screw pump, and diaphragm pump are independently controlled by the PLC control cabinet.

7. A diversified intelligent dosing device for flotation processes as described in claim 6, characterized in that, A drive motor is mounted on the top of the mixing tank, and a stirring shaft is fixed at the output end of the drive motor. Multiple stirring impellers are axially mounted on the stirring shaft. The stirring shaft is located inside the mixing tank and is coaxially arranged with the mixing tank. The drive motor is electrically connected to the PLC control cabinet.

8. A diversified intelligent dosing device for flotation processes as described in claim 7, characterized in that, A liquid level switch is installed at a set distance from the bottom of the mixing tank around its periphery, and the liquid level switch is electrically connected to the PLC control cabinet; the height of the drug outlet pipe is the same as that of the liquid level switch.

9. A diversified intelligent dosing device for flotation processes as described in claim 8, characterized in that, The drug outlet pipe is connected to the inlet end of the peristaltic pump, screw pump, or diaphragm pump via a four-way connector, and the drug outlet end of the peristaltic pump, screw pump, or diaphragm pump is connected to the delivery pipeline; a double-oil ball valve is installed between the inlet end of the peristaltic pump, screw pump, or diaphragm pump and the drug outlet pipe, and a double-oil ball valve is installed between the drug outlet end of the peristaltic pump, screw pump, or diaphragm pump and the delivery pipeline.

10. A diversified intelligent dosing device for flotation processes as described in claim 9, characterized in that, A drain pipe is also fixed on the periphery of the mixing tank. The drain pipe is located below the liquid level switch and is equipped with a drain valve, which is normally closed. A dispensing valve is installed on the dispensing pipe, which is normally open. When cleaning the mixing tank, the drain valve is opened and the dispensing valve is closed.

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