Automatic preparing and adding device for powdered beneficiation reagent of beneficiation plant

Abstract

The utility model discloses an automatic powder beneficiation reagent preparing and adding device for a beneficiation plant, which comprises a powder reagent storage box, a reagent preparation tank and a reagent storage tank, an outlet of the powder reagent storage box is connected with an inlet of the reagent preparation tank through a quantitative reagent feeder, and the inlet of the reagent preparation tank is further connected with a quantitative liquid feeder; an outlet of the medicament preparation tank is connected with an inlet of the medicament storage tank through an electric control valve, and a medicament pumping device is arranged at an outlet of the medicament storage tank; a first floating liquid level detection device is arranged in the medicament preparation tank, a second floating liquid level detection device is arranged in the medicament storage tank, and the first floating liquid level detection device and the second floating liquid level detection device are both electrically connected with the electric control valve; according to the utility model, the adding amount of the powder medicament and the liquid can be accurately controlled to ensure the concentration accuracy of the prepared medicament, and meanwhile, the processes of medicament preparation, medicament storage and medicament adding can be continuously carried out, so that the efficiency of the mineral separation medicament preparation and adding processes is obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore dressing reagent preparation, and relates to an automatic preparation and adding device for powdery ore dressing reagents in a concentrator. Background Art

[0002] During the ore dressing operation in a concentrator, different reagents are added to the pulp according to the actual ore dressing process. How to accurately prepare the reagent concentration and achieve accurate reagent addition is an important condition for ensuring ore dressing indexes. The existing ore dressing reagent preparation and adding processes are usually directly carried out manually, which results in high labor intensity for workers. Moreover, the ore dressing working environment is harsh, which will affect the physical health of workers. Although there are also reagent preparation and adding devices used in the existing technology for reagent preparation and addition, the existing reagent preparation and adding devices only transport the reagent and liquid to the tank through a conveying device, so that the reagent and liquid are mixed in the tank to form a liquid medicine. However, the concentration of the liquid medicine is difficult to accurately control, resulting in problems such as insufficient liquid medicine concentration or excessive liquid medicine concentration in the subsequent ore dressing reagent addition process. And the existing reagent preparation and adding devices can only carry out one process alone, that is, they cannot carry out ore dressing reagent addition when preparing reagents, and cannot synchronously prepare reagents when carrying out ore dressing reagent addition, reducing the efficiency of the ore dressing reagent preparation and adding process.

[0003] Therefore, in view of the above problems existing in the existing reagent preparation and adding devices in the ore dressing process, the utility model discloses an automatic preparation and adding device for powdery ore dressing reagents in a concentrator. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic preparation and adding device for powdery ore dressing reagents in a concentrator, which can accurately control the addition amounts of the powdery reagent and the liquid to ensure the concentration accuracy of the prepared reagent, and can continuously carry out the processes of reagent preparation, reagent storage, and reagent addition, significantly improving the efficiency of the ore dressing reagent preparation and adding process.

[0005] The utility model is realized through the following technical solutions:

[0006] An automatic preparation and adding device for powdery ore dressing reagents in a concentrator includes a powdery reagent storage tank, a reagent preparation tank, and a reagent storage tank. The outlet of the powdery reagent storage tank is connected to the inlet of the reagent preparation tank through a quantitative dosing device, and a quantitative liquid feeder is also connected to the inlet of the reagent preparation tank; the outlet of the reagent preparation tank is connected to the inlet of the reagent storage tank through an electric control valve, and a reagent pumping device is arranged at the outlet of the reagent storage tank; a first floating liquid level detection device is arranged inside the reagent preparation tank, and a second floating liquid level detection device is arranged inside the reagent storage tank. The first floating liquid level detection device and the second floating liquid level detection device are both electrically connected to the electric control valve.

[0007] The powder medicine is stored inside the powder medicine storage tank. A quantitative medicine dispenser weighs a certain amount of powder medicine and transports it to the medicine preparation tank. According to the weight of the weighed powder medicine, the quantitative liquid dispenser transports the corresponding amount of liquid required for medicine preparation to the medicine preparation tank, so that the powder medicine and the liquid are mixed and configured in the medicine preparation tank to form a liquid medicine. The first floating liquid level detection device inside the medicine preparation tank is used to detect the first liquid level in the medicine preparation tank in real time, and the second floating liquid level detection device inside the medicine storage tank is used to detect the second liquid level of the liquid medicine stored in the medicine storage tank in real time. When the second liquid level reaches the lower limit liquid level and the first liquid level of the liquid medicine in the medicine preparation tank remains unchanged, that is, when the medicine preparation tank is not in the medicine preparation working state, the electric control valve is opened at this time to transport the liquid medicine in the medicine preparation tank to the medicine storage tank for storage.

[0008] To better implement the present utility model, further, the quantitative liquid dispenser includes a liquid supply electric control valve, a flow meter, a liquid supply pump, and a liquid supply pipe. The inlet end of the liquid supply pipe is connected to a liquid supply source through the liquid supply pump. The outlet end of the liquid supply pipe is arranged corresponding to the inlet of the medicine preparation tank. The liquid supply electric control valve and the flow meter are sequentially arranged on the liquid supply pipe. The liquid supply electric control valve is electrically connected to the flow meter and the first floating liquid level detection device respectively.

[0009] To better implement the present utility model, further, the quantitative medicine dispenser includes a medicine delivery cylinder, a medicine delivery screw conveyor, and a weighing device. The inlet end of the medicine delivery cylinder is connected to the outlet of the powder medicine storage tank. The weighing device is arranged at the outlet end of the medicine delivery cylinder. The medicine delivery screw conveyor is rotatably arranged inside the medicine delivery cylinder.

[0010] To better implement the present utility model, further, the first floating liquid level detection device includes a mounting seat, a first telescopic connecting rod, and a first float liquid level gauge. The mounting seat is installed on the inner wall of the medicine preparation tank. One end of the first telescopic connecting rod is hinged to the mounting seat, and the other end of the first telescopic connecting rod is connected with a first float liquid level gauge. The first float liquid level gauge is electrically connected to the electric control valve.

[0011] To better implement the present utility model, further, the second floating liquid level detection device includes a mounting seat, a second telescopic connecting rod, and a second float liquid level gauge. The mounting seat is installed on the inner wall of the medicine storage tank. One end of the second telescopic connecting rod is hinged to the mounting seat, and the other end of the second telescopic connecting rod is connected with a second float liquid level gauge. The second float liquid level gauge is electrically connected to the electric control valve.

[0012] To better implement the present utility model, further, a stirring device is arranged inside the medicine preparation tank, and the stirring device is located between the highest detection liquid level and the lowest detection liquid level of the first floating liquid level detection device.

[0013] In order to better implement the present utility model, further, a cross - cone bag - breaking device is provided at the entrance of the powder medicament storage tank.

[0014] In order to better implement the present utility model, further, the medicament - pumping device includes a medicament - discharging pipeline, and a dosing diaphragm pump is arranged on the medicament - discharging pipeline.

[0015] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0016] The present utility model can achieve automatic matching and feeding of powder medicaments and liquids, automatic preparation of powder medicaments and liquids, as well as automatic storage of the prepared medicaments. At the same time, it can control the opening and closing of the electric control valve in real - time according to the first liquid level in the medicament preparation tank and the second liquid level in the medicament storage tank, thereby realizing continuous and efficient medicament preparation, medicament storage, and medicament output, and significantly improving the working efficiency of medicament preparation, storage, and output in the ore - dressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of an automatic preparation and adding device for powdered ore - dressing medicaments in a concentrator;

[0018] Figure 2 It is a schematic structural diagram of a metering liquid feeder;

[0019] Figure 3 It is a schematic diagram of the closure of the metering medicament feeder;

[0020] Figure 4 It is a schematic diagram of the opening of the metering medicament feeder;

[0021] Figure 5 For Figure 1 Local enlarged view at position A of

[0022] Figure 6 For Figure 1 Local enlarged view at position B of

[0023] Where: 1 - powder medicament storage tank; 2 - medicament preparation tank; 3 - medicament storage tank; 4 - metering medicament feeder; 5 - metering liquid feeder; 6 - electric control valve; 7 - medicament - pumping device; 8 - stirring device; 9 - cross - cone bag - breaking device; 41 - medicament - feeding cylinder; 42 - medicament - feeding spiral conveyor; 43 - flap device; 44 - vertical cylinder; 45 - vertical spiral conveyor; 51 - liquid - feeding electric control valve; 52 - flowmeter; 100 - first floating liquid - level detection device; 200 - second floating liquid - level detection device; 101 - first telescopic connecting rod; 102 - first float - type liquid - level gauge; 201 - second telescopic connecting rod; 202 - second telescopic connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following detailed description is exemplary and intended to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model pertains.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the present utility model clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] For the convenience of description, if the words "upper", "lower", "left", and "right" appear in the present utility model, they only indicate the same directions as the upper, lower, left, and right of the accompanying drawings itself, and do not limit the structure. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0027] Term explanation part: Terms such as "installation", "connection", "connection", "fixation", etc. in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It can be an internal connection between two elements, or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example 1:

[0029] An automatic preparation and addition device for powdered ore dressing agents in a dressing plant in this embodiment, as Figure 1 shown, includes a powdered agent storage tank 1, a reagent preparation tank 2, and a reagent storage tank 3. The outlet of the powdered agent storage tank 1 is connected to the inlet of the reagent preparation tank 2 through a metering feeder 4, and a metering liquid feeder 5 is also connected to the inlet of the reagent preparation tank 2; the outlet of the reagent preparation tank 2 is connected to the inlet of the reagent storage tank 3 through an electric control valve 6, and a pump drug device 7 is provided at the outlet of the reagent storage tank 3; a first floating liquid level detection device 100 is provided inside the reagent preparation tank 2, and a second floating liquid level detection device 200 is provided inside the reagent storage tank 3. The first floating liquid level detection device 100 and the second floating liquid level detection device 200 are both electrically connected to the electric control valve 6.

[0030] The powder medicine is stored inside the powder medicine storage tank 1. The powder medicine inside the powder medicine storage tank 1 is conveyed to the medicine preparation tank 2 at a calibrated weight by weighing through the metering dispenser 4. The metering liquid dispenser 5 then conveys a corresponding weight of liquid to the medicine preparation tank 2 according to the weight of the powder medicine entering the medicine preparation tank 2, so that the powder medicine and the liquid are mixed and prepared into a medicine solution with a calibrated concentration in the medicine preparation tank 2.

[0031] The first floating liquid level detection device 100 is used to detect the first liquid level inside the medicine preparation tank 2 in real time and send the first liquid level to the controller. The second floating liquid level detection device 200 is used to detect the second liquid level in the medicine storage tank 3 in real time and send the second liquid level to the controller. The controller controls the opening and closing of the electric control valve 6 in real time according to the first liquid level and the second liquid level. Specifically:

[0032] Before the first liquid level inside the medicine preparation tank 2 increases from zero to the calibrated liquid level, the controller controls the electric control valve 6 to close until the first liquid level reaches the calibrated liquid level. At this time, the metering dispenser 4 stops adding the powder medicine, the metering liquid dispenser 5 stops adding the liquid, and the controller controls the electric control valve 6 to open, so that the medicine solution prepared in the medicine preparation tank 2 enters the medicine storage tank 3. Before the second liquid level in the medicine storage tank 3 increases from zero to the upper limit liquid level and the first liquid level in the medicine preparation tank 2 is higher than the lower limit liquid level, the electric control valve 6 is maintained open to continuously supplement the medicine to the medicine storage tank 3. When either the second liquid level in the medicine storage tank 3 increases from zero to the upper limit liquid level or the first liquid level in the medicine preparation tank 2 drops to the lower limit liquid level is satisfied, the electric control valve 6 closes, and then the metering dispenser 4 and the metering liquid dispenser 5 work again for the medicine preparation operation.

[0033] Embodiment 2:

[0034] An automatic preparation and addition device for powdered ore dressing agents in a dressing plant, which is improved on the basis of Embodiment 1. As Figure 2 shown, the metering liquid dispenser 5 includes a liquid supply electric control valve 51, a flowmeter 52, a liquid supply pump, and a liquid supply pipe. The inlet end of the liquid supply pipe is connected to a liquid supply source through the liquid supply pump. The outlet end of the liquid supply pipe is arranged corresponding to the inlet of the medicine preparation tank 2. The liquid supply electric control valve 51 and the flowmeter 52 are sequentially arranged on the liquid supply pipe. The liquid supply electric control valve 51 is electrically connected to the flowmeter 52 and the first floating liquid level detection device 100 respectively.

[0035] The liquid from the liquid supply source is sucked and transported to the liquid supply pipe by a liquid supply pump, and the liquid is transported to the medicament preparation tank 2 through the liquid supply pipe. Meanwhile, the liquid flow rate is detected in real time by a flow meter 52 on the liquid supply pipe, and the weight of the liquid transported to the medicament preparation tank 2 is calculated by the liquid flow rate. It should be noted that the liquid flow rate calculated from the flow data detected by the flow meter 52 is actually equal to the sum of the liquid amount required for the corresponding powder medicament and the residual liquid amount inside the liquid supply pipe, so as to ensure that the liquid amount finally transported to the medicament preparation tank 2 meets the liquid amount required for the corresponding powder medicament. The on-off of the liquid supply pipe is controlled in real time by a liquid supply electric control valve 51.

[0036] Furthermore, a splash-proof grille is provided at the outlet end of the liquid supply pipe. The outflowing liquid is buffered and diverted by the splash-proof grille to prevent the liquid from splashing when it enters the medicament preparation tank 2.

[0037] Other parts of this embodiment are the same as those of Embodiment 1, so they will not be elaborated here.

[0038] Embodiment 3:

[0039] An automatic preparation and addition device for powdered ore dressing medicaments in a dressing plant is improved on the basis of Embodiment 1 or 2. As Figure 3 and Figure 4 shown, the metering dispenser 4 includes a dosing cylinder 41, a dosing screw conveyor 42, and a weighing device. The inlet end of the dosing cylinder 41 is connected to the outlet of the powder medicament storage tank 1, a weighing device is provided at the outlet end of the dosing cylinder 41, and a dosing screw conveyor 42 is rotatably arranged inside the dosing cylinder 41.

[0040] One end of the dosing cylinder 41 is provided with an inlet, and the inlet is connected to the outlet of the powder medicament storage tank 1 through a collecting hopper. A flap device 43 is provided at the outlet at the other end of the dosing cylinder 41, and a weighing device is provided on the flap device 43. A dosing screw conveyor 42 is rotatably arranged inside the dosing cylinder 41 between the inlet and the outlet. The powder medicament is transported to the weighing device at the outlet by the dosing screw conveyor 42, and the powder medicament is weighed by the weighing device. When the transported powder medicament reaches the calibrated weight required for preparing the liquid medicine, the dosing screw conveyor 42 stops operating, and at the same time, the flap device 43 rotates to open the outlet of the dosing cylinder 41, so that the powder medicament on the weighing device slides into the medicament preparation tank 2.

[0041] Furthermore, the flap device 43 includes a flap body and a driving cylinder. The flap body is hinged at the outlet of the dosing cylinder 41, a weighing device is provided at the top of the flap body, and the bottom of the flap body is connected to the driving cylinder. The flap body is rotated by the driving cylinder to open or close the outlet of the dosing cylinder 41. When the outlet of the dosing cylinder 41 is closed, the powder medicament is transported to the weighing device for weighing. When the outlet of the dosing cylinder 41 is opened, the powder medicament slides into the interior of the medicament preparation tank 2 for liquid medicine preparation.

[0042] Further, a vertical cylinder 44 is provided between the lower part of the flap body and the inlet of the medicament preparation tank 2. The top of the vertical cylinder 44 is communicated with the outlet of the dosing cylinder 41, the bottom of the vertical cylinder 44 is communicated with the inlet of the medicament preparation tank 2, and a vertically arranged vertical screw conveyor 45 is rotatably arranged inside the vertical cylinder 44. The weighed powder medicament enters the vertical cylinder 44 and is evenly conveyed to the medicament preparation tank 2 through the vertical screw conveyor 45, avoiding the situation that a large amount of powder medicament directly falls into the medicament preparation tank 2 and causes the powder medicament to agglomerate and be difficult to disperse.

[0043] Other parts of this embodiment are the same as those of Embodiment 1 or 2, so they will not be described in detail.

[0044] Embodiment 4:

[0045] An automatic preparation and addition device for powdered ore dressing medicaments in a concentrator is improved on the basis of any one of Embodiments 1-3. As Figure 5 shown, the first floating liquid level detection device 100 includes a mounting seat, a first telescopic connecting rod 101, and a first float liquid level gauge 102. The mounting seat is installed on the inner wall of the medicament preparation tank 2. One end of the first telescopic connecting rod 101 is hinged to the mounting seat, and the other end of the first telescopic connecting rod 101 is connected with a first float liquid level gauge 102. The first float liquid level gauge 102 is electrically connected to the electric control valve 6.

[0046] The mounting seat is fixedly or movably installed on the inner wall of the medicament preparation tank 2. Preferably, the mounting seat is movably arranged on the inner wall of the medicament preparation tank 2. Specifically, a vertical chute is provided on the inner wall of the medicament preparation tank 2. One side of the mounting seat is slidably connected to the vertical chute through a slider, and a threaded hole facing the vertical chute is provided on the mounting seat. A locking bolt is threadedly fitted in the threaded hole. By sliding the mounting seat to adjust the installation height of the mounting seat in the medicament preparation tank 2, and at the same time fixing the length of the first telescopic connecting rod 101, in fact, the upper limit height and the lower limit height that the first telescopic connecting rod 101 can reach by rotating around the mounting seat are restricted, that is, the upper limit liquid level and the lower limit liquid level that the first float liquid level gauge 102 can detect are restricted. When it is necessary to change the upper limit liquid level and the lower limit liquid level of the first float liquid level gauge 102, only need to adjust the installation height of the mounting seat, and at the same time adjust the telescopic length of the first telescopic connecting rod 101 and fix its telescopic length after extension, so as to realize the flexible adjustment of the upper limit liquid level and the lower limit liquid level of the first float liquid level gauge 102.

[0047] Other parts of this embodiment are the same as those of any one of Embodiments 1-3, so they will not be described in detail.

[0048] Embodiment 5:

[0049] An automatic preparation and addition device for powdery ore dressing agents in a dressing plant, which is improved on the basis of any one of Embodiments 1-4, as Figure 6 shown, the second floating liquid level detection device 200 includes a mounting seat, a second telescopic link 201, and a second float liquid level gauge 202. The mounting seat is installed on the inner wall of the reagent storage tank 3. One end of the second telescopic link 201 is hinged to the mounting seat, and the other end of the second telescopic link 201 is connected to a second float liquid level gauge 202. The second float liquid level gauge 202 is electrically connected to the electric control valve 6.

[0050] The mounting seat is fixedly or movably installed on the inner wall of the reagent storage tank 3. Preferably, the mounting seat is movably arranged on the inner wall of the reagent storage tank 3. Specifically, a vertical chute is provided on the inner wall of the reagent storage tank 3. One side of the mounting seat is slidably connected to the vertical chute through a slider, and a threaded hole facing the vertical chute is provided on the mounting seat. A locking bolt is threadedly fitted in the threaded hole. By sliding the mounting seat to adjust the mounting height of the mounting seat in the reagent storage tank 3, and at the same time fixing the length of the second telescopic link 201, in fact, the upper limit height and the lower limit height that the second telescopic link 201 can reach when rotating around the mounting seat are restricted, that is, the upper limit liquid level and the lower limit liquid level that the second float liquid level gauge 202 can detect are restricted. When it is necessary to change the upper limit liquid level and the lower limit liquid level of the second float liquid level gauge 202, only need to adjust the mounting height of the mounting seat, and at the same time adjust the telescopic length of the second telescopic link 201 and fix its telescopic length after extension, so as to realize the flexible adjustment of the upper limit liquid level and the lower limit liquid level of the second float liquid level gauge 202.

[0051] Other parts of this embodiment are the same as any one of Embodiments 1-4, so they will not be described in detail.

[0052] Embodiment 6:

[0053] An automatic preparation and addition device for powdery ore dressing agents in a dressing plant, which is improved on the basis of any one of Embodiments 1-5, as Figure 1 shown, a stirring device 8 is arranged inside the reagent preparation tank 2. The stirring device 8 is located between the highest detection liquid level and the lowest detection liquid level of the first floating liquid level detection device 100.

[0054] The stirring device 8 includes a rotating shaft rotatably arranged inside the reagent preparation tank 2. A plurality of groups of stirring blades are arranged along the circumference of the outer part of the rotating shaft. The top end of the rotating shaft extends outside the reagent preparation tank 2 and is connected to a motor. The motor drives the rotating shaft and the stirring blades to rotate, so as to fully stir and mix the powdery reagent and liquid inside the reagent preparation tank 2.

[0055] Other parts of this embodiment are the same as any one of Embodiments 1-5, so they will not be described in detail.

[0056] Example 7:

[0057] An automatic preparation and addition device for powdered ore dressing agents in a dressing plant, which is improved on the basis of any one of Examples 1-6. As Figure 1 shown, a cross-cone bag breaker 9 is provided at the inlet of the powdered agent storage tank 1. Through the cross-cone bag breaker 9, the bag storing the powdered agent can be slid open, so that the powdered agent falls into the powdered agent storage tank 1.

[0058] Other parts of this example are the same as any one of Examples 1-6, so they will not be described again.

[0059] Example 8:

[0060] An automatic preparation and addition device for powdered ore dressing agents in a dressing plant, which is improved on the basis of any one of Examples 1-7. As Figure 1 shown, the pump drug device 7 includes a drug outlet pipeline, and a dosing diaphragm pump is arranged on the drug outlet pipeline. An outlet is provided at the bottom of the drug storage tank 3. One end of the drug outlet pipeline is inserted into the outlet of the drug storage tank 3. A dosing diaphragm pump is arranged on the drug outlet pipeline. When the dosing diaphragm pump is opened, the drug stored in the drug storage tank 3 can be transported to the outside through the drug outlet pipeline.

[0061] Other parts of this example are the same as any one of Examples 1-7, so they will not be described again.

[0062] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant, comprising a powder reagent storage box (1), a reagent preparation tank (2), and a reagent storage tank (3), characterized in that: The outlet of the powder medicine storage box (1) is connected to the inlet of the medicine preparation tank (2) through a quantitative dosing device (4), and the inlet of the medicine preparation tank (2) is also connected to a quantitative dosing device (5); the outlet of the medicine preparation tank (2) is connected to the inlet of the medicine storage tank (3) through an electric control valve (6), and the outlet of the medicine storage tank (3) is provided with a medicine pumping device (7); a first floating liquid level detection device (100) is provided inside the medicine preparation tank (2), and a second floating liquid level detection device (200) is provided inside the medicine storage tank (3), and the first floating liquid level detection device (100) and the second floating liquid level detection device (200) are both electrically connected to the electric control valve (6).

2. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to claim 1, characterized in that: The quantitative liquid feeder (5) comprises a liquid feeding electric control valve (51), a flow meter (52), a liquid feeding pump, and a liquid feeding pipe. The inlet end of the liquid feeding pipe is connected to the liquid feeding source through the liquid feeding pump, and the outlet end of the liquid feeding pipe is arranged corresponding to the inlet of the medicine preparation tank (2). The liquid feeding electric control valve (51) and the flow meter (52) are sequentially arranged on the liquid feeding pipe. The liquid feeding electric control valve (51) is electrically connected to the flow meter (52) and the first floating liquid level detection device (100) respectively.

3. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to claim 1, characterized in that: The quantitative dosing device (4) comprises a dosing barrel (41), a dosing screw conveyor (42), and a weighing device. The inlet end of the dosing barrel (41) is connected to the outlet of the powder medicine storage box (1), the outlet end of the dosing barrel (41) is provided with a weighing device, and the dosing screw conveyor (42) is rotatably provided inside the dosing barrel (41).

4. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to any one of claims 1 to 3, characterized in that: The first floating liquid level detection device (100) comprises a mounting seat, a first telescopic connecting rod (101), and a first float liquid level gauge (102); the mounting seat is mounted on the inner wall of the medicine preparation tank (2); one end of the first telescopic connecting rod (101) is hinged to the mounting seat; the other end of the first telescopic connecting rod (101) is connected to the first float liquid level gauge (102); and the first float liquid level gauge (102) is electrically connected to the electric control valve (6).

5. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to any one of claims 1 to 3, characterized in that: The second floating liquid level detection device (200) comprises a mounting seat, a second telescopic connecting rod (201), and a second float liquid level gauge (202); the mounting seat is mounted on the inner wall of the medicine storage tank (3); one end of the second telescopic connecting rod (201) is hinged to the mounting seat; the other end of the second telescopic connecting rod (201) is connected to the second float liquid level gauge (202); and the second float liquid level gauge (202) is electrically connected to the electric control valve (6).

6. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to any one of claims 1 to 3, characterized in that: A stirring device (8) is provided inside the medicine preparation tank (2), and the stirring device (8) is located between the highest detection liquid level and the lowest detection liquid level of the first floating liquid level detection device (100).

7. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to claim 6, characterized in that: A cross-cone bag breaker (9) is provided at the entrance of the powder medicine storage box (1).

8. The automatic preparation and addition device for powdered mineral processing reagents in a mineral processing plant according to claim 7, characterized in that: The medicine pumping device (7) comprises a medicine outlet pipeline, and a medicine-dosing diaphragm pump is provided on the medicine outlet pipeline.

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