Chemical adding equipment for ore treatment

Abstract

The utility model belongs to the technical field of ore processing equipment, and particularly relates to dosing equipment for ore treatment. The stirring mechanism comprises a driver arranged at the top of the stirring barrel and a stirring assembly arranged in the stirring barrel and connected with the driver, and the driver drives the stirring assembly to operate and is used for stirring the mixture in the stirring barrel; the chemical adding assembly is arranged at the top of the stirring barrel, communicates with the stirring barrel and is used for adding chemicals into the stirring barrel; wherein the top of the mixing drum is provided with a feed port, and the bottom is provided with a discharge port. The powder medicine stirring device has the beneficial effects that the efficient stirring mechanism is adopted, the stirring assembly is driven by the top driver to conduct all-around and multi-layer stirring action in the stirring barrel, stirring is more sufficient through the design, local accumulation, precipitation or floccule formation of powder medicine in the stirring process is avoided, and the stirring efficiency is improved. Therefore, the uniform mixing of the medicines is ensured.

Description

Technical Field

[0001] This application belongs to the technical field of ore processing equipment, and particularly relates to a chemical dosing device for ore treatment. Background Art

[0002] A mine chemical dosing machine is a device used to add chemicals during the ore treatment process. In the mining industry, it is often necessary to add chemical agents to the ore to achieve the flotation, separation, or other treatment processes of the ore. The role of the chemical dosing machine is to accurately dispense the required chemicals into the ore pulp to ensure the effectiveness and stability of the ore treatment process.

[0003] However, the existing chemical dosing machines on the market do not stir the drugs evenly during use, resulting in the precipitation or flocculation of powdered drugs in the mixing barrel. Eventually, the powdered drugs cannot be easily stirred evenly, and improvement is needed. Summary of the Utility Model

[0004] The purpose of this application is to provide a chemical dosing device for ore treatment that can solve the above problems.

[0005] The purpose of this application is to provide a chemical dosing device for ore treatment, including:

[0006] A mixing barrel;

[0007] A stirring mechanism, including a driver arranged at the top of the mixing barrel and a stirring component arranged inside the mixing barrel and connected to the driver. The driver drives the stirring component to operate and is used to stir the mixture in the mixing barrel;

[0008] A chemical dosing component, arranged at the top of the mixing barrel and communicating with the mixing barrel, for adding drugs into the mixing barrel;

[0009] Wherein, a feeding port is arranged at the top of the mixing barrel, and a discharging port is arranged at the bottom.

[0010] Adopting the above chemical dosing device for ore treatment, this application adopts an efficient stirring mechanism. The stirring component is driven by the top driver to perform all-round and multi-level stirring actions in the mixing barrel. This design makes the stirring more sufficient, avoiding local accumulation, precipitation, or formation of flocs of powdered drugs during the stirring process, thus ensuring the uniform mixing of the drugs. The chemical dosing component arranged at the top of the mixing barrel is directly communicated with the mixing barrel, making the drug addition process smoother and faster. And because the drug addition position is at the top of the mixing barrel, the drugs can be quickly dispersed by the stirring component and evenly mixed into the entire mixing barrel, further improving the stirring efficiency.

[0011] The top of the mixing drum is provided with a feeding port, and the bottom is provided with a discharging port, which makes the equipment have higher flexibility and applicability when processing ores or drugs of different types and viscosities. At the same time, it is convenient for cleaning and maintenance, and extends the service life of the equipment.

[0012] Furthermore, the mixing assembly includes:

[0013] A stirring rod, rotatably arranged on the mixing drum, and stirring blades are arranged on its surface;

[0014] A stirring scraper, including a frame body and a sleeve arranged on the top of the frame body, and the sleeve is sleeved outside the stirring rod;

[0015] A connecting assembly, including a first bevel gear arranged outside the stirring rod, a second bevel gear arranged on the sleeve, and a third bevel gear arranged on the output shaft of the driver.

[0016] Wherein, the third bevel gear meshes with the first bevel gear and the second bevel gear respectively.

[0017] The stirring rod is rotatably arranged on the mixing drum and rotates by the power provided by the driver. The stirring blades are arranged on the surface of the stirring rod. The frame body of the stirring scraper is closely attached to the inner wall of the mixing drum to ensure that the residues of drugs or ores attached to the inner wall can be scraped off during the stirring process, which helps to prevent the accumulation and caking of materials on the inner wall and improves the uniformity of stirring. The sleeve is sleeved outside the stirring rod and is connected to the top of the frame body of the stirring scraper, and can move synchronously with the rotation of the stirring rod under the cooperation of the bevel gears, realizing the scraping of the inner wall of the mixing drum. The first bevel gear arranged outside the stirring rod is used to transmit the driving force to make the stirring rod rotate. The second bevel gear located on the sleeve is arranged at an interval from the first bevel gear. The third bevel gear arranged on the output shaft of the driver meshes with the first bevel gear and the second bevel gear respectively, realizing the distribution and transmission of the driving force. By driving the third bevel gear to rotate by the driver, the stirring rod and the stirring scraper can be driven to rotate through the first bevel gear and the second bevel gear.

[0018] During the stirring process, the mixing assembly can not only fully mix the drugs and ores, but also scrape the inner wall of the mixing drum through the stirring scraper, effectively preventing the accumulation and caking of materials on the inner wall. The design of scraping while stirring greatly improves the uniformity and efficiency of stirring, ensuring the smooth progress of the medicine adding process. At the same time, this design also simplifies the structure of the equipment, reduces the maintenance cost, and improves the reliability and service life of the equipment.

[0019] Furthermore: The medicine adding assembly includes:

[0020] A cylinder body, arranged on the top of the mixing drum, with a feeding hopper arranged on its top, a discharging pipe arranged on its bottom, the discharging pipe is communicated with the mixing drum, and a first control valve is arranged on the discharging pipe;

[0021] The stirring shaft is arranged inside the cylinder body. Stirring blades and a spiral auger are successively arranged on its outer wall from top to bottom. And a controller connected to the stirring shaft is arranged at the top of the cylinder body.

[0022] The partition plate is arranged inside the cylinder body, and a plurality of through holes are opened on the partition plate.

[0023] Among them, the partition plate is located between the stirring blades and the spiral auger.

[0024] The cylinder body is located at the top of the mixing cylinder, and the feed hopper is located at the top of the cylinder body, facilitating the quick and convenient input of drugs into the equipment. The discharge pipe is located at the bottom of the cylinder body and is communicated with the mixing cylinder to ensure that the drugs can smoothly enter the mixing cylinder. The first control valve arranged on the discharge pipe is used to control the opening and closing of the drug discharge pipe. The stirring shaft is arranged inside the cylinder body and is driven to rotate by the controller to realize the stirring and conveying functions of the drugs. The setting of the stirring blades helps the preliminary mixing and dispersion of the drugs. The spiral auger arranged at the lower part of the outer wall of the stirring shaft uses the thrust generated by rotation to axially convey the drugs to the discharge pipe, ensuring that the drugs can continuously and evenly enter the mixing cylinder. The partition plate arranged inside the cylinder body separates the stirring blades and the spiral auger to form a transition area. The plurality of through holes opened on the partition plate allow the drugs to pass through from the stirring blade area and enter the spiral auger area. As the stirring blades rotate, the drugs are evenly dispersed and fall onto the spiral auger through the through holes, effectively avoiding the formation of flocs or precipitates during the addition of drugs.

[0025] Furthermore, a connecting sleeve is also arranged at the bottom of the frame body. Bearings in contact with the stirring shaft are arranged in both the connecting sleeve and the sleeve.

[0026] The connecting sleeve arranged at the bottom of the frame body not only plays a role in connection and support, but also forms a low-friction rotary connection with the stirring shaft through the bearings arranged inside, enabling the stirring scraper to rotate more smoothly and steadily during rotation, reducing the heat and wear generated due to friction. At the same time, through the design of the connecting sleeve and the bearings, the stirring scraper can maintain a more stable posture during rotation, reducing the influence of vibration and shaking on the stirring effect, helping to improve the uniformity and efficiency of stirring, and ensuring the full mixing of drugs and ores.

[0027] Furthermore, a sealing cover is arranged on the feeding port, and a second control valve is arranged on the discharging port for controlling the opening and closing of the discharging port.

[0028] The sealing cover is arranged on the feeding port and is used to seal the feeding port when drugs are not added, preventing foreign impurities, dust or moisture from entering the mixing cylinder and affecting the quality and stirring effect of the drugs. The second control valve is arranged on the discharging port for controlling the opening and closing of the discharging port. By adjusting the opening and closing state of the second control valve, the discharge of the materials in the mixing cylinder can be controlled to ensure the smooth progress of the stirring process and the stability of the stirring effect.

[0029] Further, a plurality of support feet are provided at the bottom of the mixing drum.

[0030] During the operation of the mixing drum, due to the agitation and rotation of the internal materials, certain vibrations and impact forces will be generated. The design of multiple support feet can ensure that the mixing drum remains stable during operation, preventing equipment tilting or damage caused by excessive vibration. In addition, the design of multiple support feet can also disperse the pressure of the mixing drum on the ground, reducing problems such as ground damage or support foot wear caused by excessive single-point stress.

[0031] The beneficial effects of this application are as follows:

[0032] 1. This application adopts an efficient mixing mechanism. The mixing component is driven by a top drive to perform all-round and multi-level mixing actions inside the mixing drum. This design makes the mixing more thorough, avoiding local accumulation, precipitation or formation of flocs of powdered drugs during the mixing process, thus ensuring the uniform mixing of the drugs.

[0033] 2. The setting of the mixing component enables not only the full mixing of drugs and ores during the mixing process, but also the scraping of the inner wall of the mixing drum by the mixing scraper, effectively preventing the accumulation and caking of materials on the inner wall. The design of scraping while mixing greatly improves the mixing uniformity and efficiency, ensuring the smooth progress of the drug addition process.

[0034] 3. The connecting sleeve provided at the bottom of the frame not only plays a role in connection and support, but also forms a low-friction rotational connection with the mixing shaft through the bearings provided inside, making the mixing scraper more stable and smooth during rotation, reducing the heat and wear generated due to friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the present utility model;

[0036] Figure 2 is a dashed-line top view;

[0037] Figure 3 is Figure 2 a cross-sectional view taken along the A-A direction in

[0038] Figure 4 test Figure 2 a cross-sectional view taken along the B-B direction in

[0039] The reference numerals in the figure are: 100, mixing drum; 110, feeding port; 120, discharging port; 130, sealing cover; 140, second control valve; 150, support leg; 200, mixing mechanism; 210, driver; 220, mixing assembly; 221, mixing rod; 222, mixing blade; 223, frame; 224, sleeve; 225, first bevel gear; 226, second bevel gear; 227, third bevel gear; 230, connecting sleeve; 240, bearing; 300, chemical adding assembly; 310, cylinder body; 311, feed hopper; 312, discharge pipe; 313, first control valve; 320, mixing shaft; 321, mixing fan blade; 322, spiral auger; 323, controller; 330, partition; 331, through hole. Detailed implementation manners

[0040] The following will clearly describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0041] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0042] The following will specifically describe the chemical adding equipment for ore treatment provided in the embodiments of the present application with reference to the accompanying drawings and through specific embodiments and their application scenarios.

[0043] Embodiment 1:

[0044] As Figures 1 to 4 shown, the embodiment of the present application provides a chemical adding equipment for ore treatment, including:

[0045] A mixing drum 100;

[0046] A mixing mechanism 200, including a driver 210 arranged at the top of the mixing drum 100 and a mixing assembly 220 arranged inside the mixing drum 100 and connected to the driver 210. The driver 210 drives the mixing assembly 220 to operate and is used to mix the mixture in the mixing drum 100;

[0047] The chemical adding component 300 is arranged at the top of the mixing drum 100 and communicated with the mixing drum 100, and is used for adding chemicals into the mixing drum 100;

[0048] Wherein, a feeding port 110 is arranged at the top of the mixing drum 100, and a discharging port 120 is arranged at the bottom.

[0049] In some embodiments of the present application, as Figure 1 shown, by adopting the above-mentioned chemical adding device for ore treatment, the present application adopts the efficient stirring mechanism 200. The top driver 210 drives the stirring component 220 to perform all-round and multi-level stirring actions in the mixing drum 100. This design makes the stirring more sufficient, avoiding local accumulation, precipitation or formation of flocs of the powdery chemical during the stirring process, thereby ensuring the uniform mixing of the chemical. The chemical adding component 300 arranged at the top of the mixing drum 100 is directly communicated with the mixing drum 100, making the chemical adding process smoother and faster. And because the chemical adding position is at the top of the mixing drum 100, the chemical can be quickly dispersed by the stirring component 220 and uniformly mixed into the whole mixing drum 100, further improving the stirring efficiency.

[0050] The mixing drum 100 is provided with a feeding port 110 at the top and a discharging port 120 at the bottom, making the equipment have higher flexibility and applicability when processing ores or chemicals of different types and different viscosities. At the same time, it is convenient for cleaning and maintenance, and prolongs the service life of the equipment.

[0051] Furthermore, a sealing cover 130 is arranged on the feeding port 110, and a second control valve 140 is arranged on the discharging port 120 for controlling the opening and closing of the discharging port 120.

[0052] The sealing cover 130 is arranged on the feeding port 110 for sealing the feeding port 110 when no chemical is added, preventing external impurities, dust or moisture from entering the mixing drum 100 and affecting the quality of the chemical and the stirring effect. The second control valve 140 is arranged on the discharging port 120 for controlling the opening and closing of the discharging port 120. By adjusting the opening and closing state of the second control valve 140, the discharge of the materials in the mixing drum 100 can be controlled, ensuring the smooth progress of the stirring process and the stability of the stirring effect.

[0053] Embodiment 2:

[0054] The embodiment of the present application provides a chemical adding device for ore treatment. In addition to including the above technical features, the chemical adding device for ore treatment in the embodiment of the present application further includes the following technical features.

[0055] As Figures 1 to 4 shown, the stirring component 220 includes:

[0056] The stirring rod 221 is rotatably arranged on the stirring cylinder 100, and stirring blades 222 are arranged on its surface.

[0057] The stirring scraper includes a frame body 223 and a sleeve 224 arranged on the top of the frame body 223, and the sleeve 224 is sleeved outside the stirring rod 221.

[0058] The connecting component includes a first bevel gear 225 arranged outside the stirring rod 221, a second bevel gear 226 arranged on the sleeve 224, and a third bevel gear 227 arranged on the output shaft of the driver 210.

[0059] Wherein, the third bevel gear 227 meshes with the first bevel gear 225 and the second bevel gear 226 respectively.

[0060] In the embodiment of the present application, the stirring rod 221 is rotatably arranged on the stirring cylinder 100 and rotates by the power provided by the driver 210, and the stirring blades 222 are arranged on the surface of the stirring rod 221. The frame body 223 of the stirring scraper is closely attached to the inner wall of the stirring cylinder 100 to ensure that the drugs or ore residues attached to the inner wall can be scraped off during the stirring process, which helps to prevent the accumulation and caking of materials on the inner wall and improves the uniformity of stirring. The sleeve 224 is sleeved outside the stirring rod 221 and is connected to the top of the frame body 223 of the stirring scraper, and can move synchronously with the rotation of the stirring rod 221 under the cooperation of the bevel gears, realizing the scraping of the inner wall of the stirring cylinder 100. The first bevel gear 225 arranged outside the stirring rod 221 is used to transmit the driving force to make the stirring rod 221 rotate. The second bevel gear 226 located on the sleeve 224 is arranged at an interval from the first bevel gear 225. The third bevel gear 227 arranged on the output shaft of the driver 210 meshes with the first bevel gear 225 and the second bevel gear 226 respectively, realizing the distribution and transmission of the driving force. By driving the third bevel gear 227 to rotate through the driver 210, the stirring rod 221 and the stirring scraper can be driven to rotate through the first bevel gear 225 and the second bevel gear 226.

[0061] During the stirring process, the stirring component 220 can not only fully mix the drugs and ores, but also scrape the inner wall of the stirring cylinder 100 through the stirring scraper, effectively preventing the accumulation and caking of materials on the inner wall. The design of scraping while stirring greatly improves the uniformity and efficiency of stirring, ensuring the smooth progress of the drug addition process. At the same time, this design also simplifies the structure of the equipment, reduces the maintenance cost, and improves the reliability and service life of the equipment.

[0062] Embodiment 3:

[0063] The embodiment of the present application provides a drug addition device for ore treatment. In addition to including the above technical features, the drug addition device for ore treatment in the embodiment of the present application further includes the following technical features.

[0064] As Figure 1 and Figure 3 shown, the medicine adding component 300 includes:

[0065] A cylinder body 310 is arranged at the top of the mixing drum 100. A feed hopper 311 is arranged at the top of the cylinder body 310, and a discharge pipe 312 is arranged at the bottom of the cylinder body 310. The discharge pipe 312 is communicated with the mixing drum 100, and a first control valve 313 is arranged on the discharge pipe 312;

[0066] A stirring shaft 320 is arranged in the cylinder body 310. Stirring blades 321 and a spiral auger 322 are arranged on the outer wall of the stirring shaft 320 from top to bottom in sequence. And a controller 323 connected to the stirring shaft 320 is arranged at the top of the cylinder body 310;

[0067] A partition plate 330 is arranged in the cylinder body 310, and a plurality of through holes 331 are formed in the partition plate 330;

[0068] Wherein, the partition plate 330 is located between the stirring blades 321 and the spiral auger 322.

[0069] In the embodiment of the present application, the cylinder body 310 is located at the top of the mixing drum 100, and the feed hopper 311 is located at the top of the cylinder body 310, which is convenient for quickly and conveniently putting the medicine into the equipment. The discharge pipe 312 is located at the bottom of the cylinder body 310 and is communicated with the mixing drum 100 to ensure that the medicine can smoothly enter the mixing drum 100. The first control valve 313 arranged on the discharge pipe 312 is used to control the opening and closing of the medicine discharge pipe 312. The stirring shaft 320 is arranged in the cylinder body 310 and is driven to rotate by the controller 323 to realize the stirring and conveying functions of the medicine. The arrangement of the stirring blades 321 helps the preliminary mixing and dispersion of the medicine. The spiral auger 322 arranged at the lower part of the outer wall of the stirring shaft 320 uses the thrust generated by rotation to axially convey the medicine to the discharge pipe 312 to ensure that the medicine can continuously and evenly enter the mixing drum 100. The partition plate 330 arranged in the cylinder body 310 separates the stirring blades 321 and the spiral auger 322 to form a transition area. The plurality of through holes 331 formed in the partition plate 330 allow the medicine to pass through the area of the stirring blades 321 and enter the area of the spiral auger 322. As the stirring blades 321 rotate, the medicine is evenly dispersed and falls onto the spiral auger 322 through the through holes 331, effectively avoiding the formation of flocs or precipitates during the addition of the medicine.

[0070] Furthermore, a connecting sleeve 230 is also arranged at the bottom of the frame body 223. Bearings 240 in contact with the stirring shaft 320 are arranged in both the connecting sleeve 230 and the sleeve 224.

[0071] The connecting sleeve 230 provided at the bottom of the frame 223 not only plays a role in connection and support, but also forms a low-friction rotational connection with the stirring shaft 320 through the internally provided bearing 240, enabling the stirring scraper to rotate more smoothly and steadily during the rotation process, reducing the heat and wear generated due to friction. At the same time, through the design of the connecting sleeve 230 and the bearing 240, the stirring scraper can maintain a more stable posture during the rotation process, reducing the impact of vibration and shaking on the stirring effect, contributing to improving the uniformity and efficiency of stirring, and ensuring that the medicine and ore can be fully mixed.

[0072] Embodiment 4:

[0073] The embodiment of the present application provides a medicine adding device for ore treatment. In addition to including the above technical features, the medicine adding device for ore treatment in the embodiment of the present application further includes the following technical features.

[0074] As Figure 1 shown, a plurality of support feet 150 are provided at the bottom of the stirring cylinder 100.

[0075] In the embodiment of the present application, during the working process of the stirring cylinder 100, due to the stirring and rotation of the internal materials, certain vibration and impact forces will be generated. The design of the plurality of support feet 150 can ensure that the stirring cylinder 100 remains stable during operation, preventing the equipment from tilting or being damaged due to excessive vibration. In addition, the design of the plurality of support feet 150 can also disperse the pressure of the stirring cylinder 100 on the ground, reducing the problem of ground damage or wear of the support feet 150 caused by excessive single-point stress.

[0076] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0077] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A chemical dosing device for ore processing, characterized in that: Comprising: A mixing drum (100); A mixing mechanism (200), including a driver (210) arranged at the top of the mixing drum (100) and a mixing assembly (220) arranged inside the mixing drum (100) and connected to the driver (210), the driver (210) drives the mixing assembly (220) to operate and is used for mixing the mixture inside the mixing drum (100); A chemical dosing assembly (300), arranged at the top of the mixing drum (100) and communicating with the mixing drum (100), for adding chemicals into the mixing drum (100); Wherein, a feeding port (110) is arranged at the top of the mixing drum (100), and a discharging port (120) is arranged at the bottom.

2. The chemical dosing device for ore treatment according to claim 1, characterized in that: The mixing assembly (220) includes: Mixing rods (221), rotatably arranged on the mixing drum (100), and mixing blades (222) are arranged on the surface thereof; A mixing scraper, including a frame body (223) and a sleeve (224) arranged at the top of the frame body (223), the sleeve (224) is sleeved outside the mixing rod (221); A connecting assembly, including a first bevel gear (225) arranged outside the mixing rod (221), a second bevel gear (226) arranged on the sleeve (224), and a third bevel gear (227) arranged on the output shaft of the driver (210); Wherein, the third bevel gear (227) meshes with the first bevel gear (225) and the second bevel gear (226) respectively.

3. The chemical dosing device for ore processing according to claim 2, characterized in that: The chemical dosing assembly (300) includes: A cylinder body (310), arranged at the top of the mixing drum (100), a feeding hopper (311) is arranged at the top thereof, a discharging pipe (312) is arranged at the bottom, the discharging pipe (312) communicates with the mixing drum (100), and a first control valve (313) is arranged on the discharging pipe (312); A mixing shaft (320), arranged inside the cylinder body (310), mixing fan blades (321) and a spiral auger (322) are arranged on the outer wall thereof from top to bottom in sequence, and a controller (323) connected to the mixing shaft (320) is arranged at the top of the cylinder body (310); A partition plate (330), arranged inside the cylinder body (310), and a plurality of through holes (331) are formed on the partition plate (330); Wherein, the partition plate (330) is located between the mixing fan blades (321) and the spiral auger (322).

4. The chemical dosing device for ore processing according to claim 3, wherein: A connecting sleeve (230) is further arranged at the bottom of the frame body (223), and bearings (240) in contact with the mixing shaft (320) are arranged in both the connecting sleeve (230) and the sleeve (224).

5. The chemical dosing device for ore treatment according to claim 4, characterized in that: A sealing cover (130) is arranged on the feeding port (110), and a second control valve (140) is arranged on the discharging port (120) for controlling the opening and closing of the discharging port (120).

6. The chemical dosing device for ore treatment according to claim 1, characterized in that: A plurality of support feet (150) are arranged at the bottom of the mixing drum (100).

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