A multi-metal ore comprehensive recovery device and method

Abstract

The present application relates to polymetallic ore processing technology, disclose a kind of polymetallic ore comprehensive recovery equipment and method, the conveying end of belt conveyor is communicated with the feed inlet of ball mill, and the discharge outlet of ball mill is communicated with buffer tank, and the discharge outlet of buffer tank is communicated with slag pump, and slag pump is communicated with hydrocyclone, and hydrocyclone is communicated with stirring barrel together, and one end of stirring barrel is set with flotation machine together, and flotation machine is set with second slag pump together, and second slag pump is communicated with the feed inlet of ball mill together, and the other outlet end of hydrocyclone is communicated with the feed inlet of ball mill together, setting at the feed inlet of flotation machine combination agent proportioning device;Filtering device is set in the inside of flotation machine and separates the material of polymetallic ore, the recovery equipment and method cancel part of stage grinding, reduce part of infrastructure and equipment investment of concentrator, reduce the early investment of enterprise.

Description

Technical Field

[0001] This invention relates to polymetallic mineral processing technology, specifically to a polymetallic ore comprehensive recovery equipment and method. Background Technology

[0002] Polymetallic non-ferrous minerals generally present technical challenges due to their complex ore structure, close symbiotic relationships, and difficulties in recovery and separation. There are also technical difficulties to be improved in terms of product quality, intermetallic inclusions, and recovery rates from polymetallic ore processing.

[0003] In my country's non-ferrous mineral processing enterprises, ores with a single valuable mineral are relatively rare; most are polymetallic ores containing two or more valuable minerals, with some even containing five or six. Due to the influence of mineralization conditions, polymetallic ores generally exhibit complex composition and distribution characteristics, uneven mineral grades and particle sizes, and close symbiotic relationships. This often leads to complex beneficiation and processing techniques, resulting in unsatisfactory beneficiation indicators. Especially for some low-grade polymetallic ores, the complex beneficiation processes result in high production costs, leading to reduced profits or even losses for production enterprises.

[0004] Due to the complex and unevenly distributed structure of polymetallic ores, current beneficiation processes mostly employ multi-stage grinding preferential flotation or multi-stage grinding with partial mixing preferential flotation processes based on the ore characteristics. Because the process must consider both the sufficient liberation of each recovered mineral and the prevention of over-grinding of the main recovered mineral and easily grindable gangue, it involves multi-stage grinding or middlings regrinding and a relatively long flotation process, resulting in high beneficiation costs. For polymetallic ores containing some low-grade minerals, the high beneficiation costs significantly reduce the recovery value of these low-grade valuable minerals, even to the point of not generating profits for the enterprise. How to simplify the beneficiation process, reduce beneficiation costs, maximize the comprehensive recovery of low-grade valuable minerals and product quality, and increase enterprise efficiency has become an urgent problem for many mining enterprises. Therefore, a comprehensive recovery equipment and method for polymetallic ores is proposed. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a comprehensive polymetallic ore recovery device and method, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a comprehensive polymetallic ore recovery device, comprising a belt conveyor, a ball mill, a buffer tank, a slurry pump, a hydrocyclone, a mixing tank, a flotation machine, and a second slurry pump. The conveying end of the belt conveyor is connected to the feed inlet of the ball mill, and the discharge outlet of the ball mill is connected to the buffer tank. The discharge outlet of the buffer tank is connected to the slurry pump, and the slurry pump is connected to the hydrocyclone. The hydrocyclone is connected to the mixing tank, and one end of the mixing tank is connected to the flotation machine. The flotation machine is connected to the second slurry pump, and the second slurry pump is connected to the feed inlet of the ball mill. The other outlet end of the hydrocyclone is connected to the feed inlet of the ball mill. The device is characterized by further comprising:

[0009] The flotation machines are set up in multiple groups, and the multiple groups of flotation machines are arranged in a bifurcated manner into two rows. The two rows of separators are connected in sequence. The multiple groups of flotation machines are used for filtering and dissociating different polymetallic ores.

[0010] A combination agent proportioning device installed at the feed inlet of the flotation machine to add the combination agent to activate the internal polymetallic ore;

[0011] A filtration device installed inside a flotation machine to separate polymetallic ores.

[0012] The multiple sets of flotation machines include a bottom plate, baffles, filter plates, support frames, channel boxes, mixing tanks, dredging channels, polymetallic ore feed channels, and additive feed channels. Inclined baffles are fixedly connected to both sides of the upper end of the bottom plate, and filter plates are fixedly connected between the two baffles at the upper end of the bottom plate. Support frames are fixedly connected to the upper ends of the two baffles, and channel boxes are fixedly connected to the support frames. A mixing tank is movably connected to the upper end of the support frames corresponding to the upper end of the channel boxes. A dredging channel is provided at the side end of the mixing channel, and a polymetallic ore feed channel is provided at the upper end of the dredging channel. An additive feed channel is provided at the side end of the upper end of the dredging channel corresponding to the side end of the polymetallic ore feed channel.

[0013] The filtration device includes a motor, a turntable, a baffle rod, a connecting rod, a stirring rod, and a stirring shaft. A discharge port is provided at the lower end of the mixing tank corresponding to the inlet of the channel box. A motor is fixedly connected to the side end of the support frame at the position corresponding to the mixing tank. The output end of the motor passes through the mixing tank and extends into its interior. A stirring shaft is movably connected inside the mixing tank and is fixedly connected to the output end of the motor. A stirring rod is fixedly connected to the outer wall of the stirring shaft. A turntable is fixedly connected to the stirring shaft corresponding to the interior of the mixing tank. A protruding annular baffle wall on the turntable fits against the mixing tank. Three movable shafts are movably connected to the turntable, and connecting rods are movably connected to the three movable shafts. Baffle rods are movably connected to the three movable shafts, and the baffle rods and connecting rods are stacked together.

[0014] The mixing tank has a rotating groove on its side wall, and the rotating groove is arranged in a ring shape. The position of the rotating groove corresponding to the discharge port is set in a trapezoidal shape. The other end of the connecting rod is fixedly connected to a retaining shaft, and the retaining shaft is located inside the rotating groove and movably connected together.

[0015] One end of each of the three blocking rods is fixedly connected to a conveying plate, and the conveying plate is set at an inclined position, with a fixed angle between the conveying plate and the connecting rod.

[0016] The additive mixing device includes a second support plate, a movable block, a fixed block, an additive connecting rod, an additive digging bucket, a chute, a slider, and a support rod. The additive feed channel is a square box, and four second support plates are fixedly connected to the side walls of the additive feed channel. Movable blocks are movably connected between the four second support plates. Two fixed blocks are fixedly connected to the outer walls of each second support plate, and the lower ends of the two fixed blocks are movably connected to the additive connecting rods. The lower ends of the two additive connecting rods are fixedly connected to the additive digging buckets. The inner walls of the four second support plates are provided with chute, and the bottom ends of the chute are movably connected to the slider via springs. The lower ends of the sliders are movably connected to the support rods, and the support rods are movably connected to the additive digging buckets.

[0017] The upper end of the movable block is movably connected to a support column, and the support column is fixedly connected to a locking rod at the lower end of the movable block. One end of the locking rod is provided with a spring clip, and the four sliders are connected at one end with a slot. The lower end of the movable block is fixedly connected to a pressing column.

[0018] The bottom end of the additive feed channel has an additive outlet, and the side end of the additive feed channel has an additive channel. An additive plate is movably connected in the additive channel, and a rotating rod is movably connected to the lower end of the additive feed channel. The rotating rod is movably connected to the bottom wall of the additive feed channel by a torsion spring, and both ends of the rotating rod are fixedly connected to a baffle plate by a connecting rod. The baffle plate is the same size as the additive outlet.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a comprehensive polymetallic ore recovery device and method, which has the following beneficial effects:

[0021] 1. This comprehensive polymetallic ore recovery equipment and method eliminates some staged grinding, reduces some infrastructure and equipment investment in the concentrator, and lowers the initial investment of enterprises.

[0022] 2. This comprehensive polymetallic ore recovery equipment and method simplifies the polymetallic ore sorting process, which is conducive to reducing mineral processing costs and improving the economic benefits of enterprises.

[0023] 3. This polymetallic ore comprehensive recovery equipment and method has a simple process, is easy to control and operate in the production system, and is conducive to production stability and improvement of indicators.

[0024] 4. This polymetallic ore comprehensive recovery equipment and method is beneficial for mining enterprises to develop and utilize some ultra-low grade useful minerals, and improve the comprehensive recovery of useful minerals by enterprises.

[0025] 5. This comprehensive polymetallic ore recovery equipment and method is of great significance for improving the utilization rate of mineral resources and extending the service life of enterprises through the effective recovery of low-grade useful minerals.

[0026] 6. The comprehensive recovery equipment and method for polymetallic ores uses a combination agent proportioning device on the flotation machine. It utilizes a variety of different additives and uses a pressing method to distribute the proportions of different additives in a precise manner, thereby achieving precise additive proportioning.

[0027] 7. The polymetallic ore comprehensive recovery equipment and method has a support column on the movable block of the combination agent proportioning device and four channels at the lower end, so that when selecting additives, it can avoid using the same addition bucket repeatedly, and prevent the residue of previous additives from being left when adding them, which would lead to inaccurate addition proportions.

[0028] 8. The polymetallic ore comprehensive recovery equipment and method is equipped with a filter device inside the flotation machine, which can mix and feed the material at the same time, avoiding unnecessary steps, wasting time, and reducing efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the polymetallic ore recovery process of the present invention;

[0030] Figure 2 This is a schematic diagram of the polymetallic ore recovery process of the present invention;

[0031] Figure 3 This is a schematic diagram of the flotation machine of the present invention;

[0032] Figure 4 This is a side view of the flotation machine of the present invention.

[0033] Figure 5 This is a schematic diagram of the overall interior of the additive feed channel of the present invention;

[0034] Figure 6 This is a partial schematic diagram of the formulation device for the combination agent of the present invention;

[0035] Figure 7 This is a schematic diagram of a single second support plate of the present invention;

[0036] Figure 8 This is a schematic diagram of the active block of the present invention;

[0037] Figure 9 This is a schematic diagram of the bottom end of the additive feed channel of the present invention;

[0038] Figure 10 This is a schematic diagram of the filtration device of the present invention;

[0039] Figure 11 This is a partial schematic diagram of the filtration device of the present invention;

[0040] Figure 12 This is a schematic diagram of the bottom of the mixing tank of the present invention.

[0041] In the diagram: 1. Belt conveyor; 2. Ball mill; 3. Buffer tank; 4. Slurry pump; 5. Hydrocyclone; 6. Mixing tank; 7. Flotation machine; 8. Second slurry pump; 9. Bottom plate; 10. Baffle; 11. Filter plate; 12. Support frame; 13. Channel box; 14. Mixing tank; 15. Drainage channel; 16. Polymetallic ore feed channel; 17. Additive feed channel; 18. Motor; 19. Turntable; 20. Baffle bar; 21. Connecting rod; 22. Stirring rod; 23. Stirring shaft; 24. Discharge port; 25. Movable shaft; 26. Rotating trough; 27. Shaft clamp; 28. Conveying plate; 29. ​​Second support plate; 30. Movable block; 31. Fixed block; 32. Additive connecting rod; 33. Additive digging bucket; 34. Slide chute; 35. Sliding block; 36. Support rod; 37. Support column; 38. Clamping rod; 39. Pressing column; 40. Additive outlet; 41. Rotating rod; 42. Baffle plate. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-12A comprehensive polymetallic ore recovery device includes a belt conveyor 1, a ball mill 2, a buffer tank 3, a slurry pump 4, a hydrocyclone 5, a mixing tank 6, a flotation machine 7, and a second slurry pump 8. The conveying end of the belt conveyor 1 is connected to the feed inlet of the ball mill 2, and the discharge outlet of the ball mill 2 is connected to the buffer tank 3. The discharge outlet of the buffer tank 3 is connected to the slurry pump 4, and the slurry pump 4 is connected to the hydrocyclone 5. The hydrocyclone 5 is connected to the mixing tank 6, and one end of the mixing tank 6 is connected to the flotation machine 7. The flotation machine 7 is connected to the second slurry pump 8, and the second slurry pump 8 is connected to the feed inlet of the ball mill 2. The other outlet end of the hydrocyclone 5 is connected to the feed inlet of the ball mill 2. The device is characterized by further comprising:

[0044] The flotation machine 7 is configured in multiple groups, and the multiple groups of flotation machines 7 are arranged in a bifurcated manner into two rows. The two rows of separators 7 are connected in sequence. The multiple groups of flotation machines 7 are used for filtering and dissociating different polymetallic ores.

[0045] A combination agent proportioning device is installed at the feed inlet of flotation machine 7 to add the combination agent to activate the internal polymetallic ore;

[0046] A filtration device installed inside the flotation machine 7 to separate polymetallic ores.

[0047] The multi-unit flotation machine 7 includes a bottom plate 9, baffles 10, filter plates 11, support frame 12, channel box 13, mixing tank 14, dredging channel 15, polymetallic ore feed channel 16, and additive feed channel 17. Inclined baffles 10 are fixedly connected to both sides of the upper end of the bottom plate 9, and filter plates 11 are fixedly connected between the two baffles 10 at the upper end of the bottom plate 9. Support frame 12 is fixedly connected to the upper end of the two baffles 10, and channel box 13 is fixedly connected to the support frame 12. Mixing tank 14 is movably connected to the upper end of the support frame 12 corresponding to the upper end of channel box 13. Dredging channel 15 is provided on the side end of mixing channel 14, polymetallic ore feed channel 16 is provided on the upper end of dredging channel 15, and additive feed channel 17 is provided on the side end of polymetallic ore feed channel 16 corresponding to the upper end of dredging channel 15.

[0048] The filtration device includes a motor 18, a turntable 19, a baffle rod 20, a connecting rod 21, a stirring rod 22, and a stirring shaft 23. The lower end of the mixing tank 14 is provided with a discharge port 24 corresponding to the inlet of the channel box 13. The side end of the support frame 12 is fixedly connected to the motor 18 corresponding to the position of the mixing tank 14. The output end of the motor 18 passes through the mixing tank 14 and extends into the interior. The stirring shaft 23 is movably connected inside the mixing tank 14. The stirring shaft 23 is fixedly connected to the output end of the motor 18. The stirring rod 22 is fixedly connected to the outer wall of the stirring shaft 23. The turntable 19 is fixedly connected to the stirring shaft 23 corresponding to the interior of the mixing tank 14. The turntable 19 has a protruding annular baffle wall that fits against the mixing tank 14. Three movable shafts 25 are movably connected to the turntable 19. The connecting rod 21 is movably connected to the three movable shafts 25. The baffle rod 20 is movably connected to the three movable shafts 25. The baffle rod 20 and the connecting rod 21 are stacked together.

[0049] A rotating groove 26 is provided on the side wall of the mixing tank 14. The rotating groove 26 is arranged in a ring shape. The position of the rotating groove 26 corresponding to the discharge port 24 is set in a trapezoidal shape. The other end of the connecting rod 21 is fixedly connected to a retaining shaft 27. The retaining shaft 27 is located inside the rotating groove 26 and is movably connected together.

[0050] One end of each of the three blocking rods 20 is fixedly connected to a conveyor plate 28, and the conveyor plate 28 is set at an inclined position, and the conveyor plate 28 and the connecting rod 21 are set at a fixed angle.

[0051] The additive mixing device includes a second support plate 29, a movable block 30, a fixed block 31, an additive connecting rod 32, an additive digging bucket 33, a chute 34, a slider 35, and a support rod 36. The additive feed channel 17 is a square box, and four second support plates 29 are fixedly connected to the side walls of the additive feed channel 17. Movable blocks 30 are movably connected between the four second support plates 29. Two fixed blocks 31 are fixedly connected to the outer walls of each second support plate 29. The lower ends of the two fixed blocks 31 are movably connected to the additive connecting rods 32, and the lower ends of the two additive connecting rods 32 are fixedly connected to the additive digging bucket 33. The inner walls of the four second support plates 29 are provided with chute 34, and the bottom ends of the chute 34 are movably connected to the slider 35 by springs. The lower ends of the slider 35 are movably connected to the support rod 36, and the support rod 36 is movably connected to the additive digging bucket 33.

[0052] The upper end of the movable block 30 is movably connected to a support column 37, and the lower end of the movable block 30 is fixedly connected to a locking rod 38. One end of the locking rod 38 is provided with a spring clip, and the four sliders 35 are provided with a slot at their converging ends. The lower end of the movable block 30 is fixedly connected to a pressing column 39.

[0053] The bottom end of the additive feed channel 17 is provided with an additive outlet 40, and the side end of the additive feed channel 17 is provided with an additive channel. An additive plate is movably connected in the additive channel, and a rotating rod 41 is movably connected to the lower end of the additive feed channel 17. The rotating rod 41 is movably connected to the bottom wall of the additive feed channel 17 by a torsion spring. Both ends of the rotating rod 41 are fixedly connected to a baffle plate 42 by a connecting rod, and the baffle plate 42 is the same size as the additive outlet 40.

[0054] Flotation machine working principle: S1, the polymetallic ore is transported to the ball mill 2 via belt conveyor 1. After being ground in the ball mill 2, the resulting slurry enters the buffer tank 3 for buffering and then enters the slurry pump 4. The slurry is then sent to the hydrocyclone 5 via the slurry pump 4. After being classified by the hydrocyclone 5, the qualified particle size slurry enters the mixing tank 6. The qualified slurry is then sent to the flotation machine 7 via the mixing tank 6. Finally, the ore is sent to the ball mill 2 again via the second slurry pump 8 for further grinding and dissociation.

[0055] S2, when the slurry passes through the flotation machine 7, it enters the dredging channel 15 from the polymetallic ore feed channel 16, and then enters the mixing tank 14 from the dredging channel 15. When it is necessary to add additives to the flotation machine 7, different types of additives are first placed into the additive plate, and then the additive plate containing the additives is placed into the additive feed channel 17. By rotating the support column 37, the lower end of the locking rod 38 is rotated to the side corresponding to the additive. The spring clip at one end of the locking rod 38 engages with the slot on the slider 35. Then, by pressing the movable block 30, the movable block 30 is moved downward. During the movement, the slider is driven by the locking rod 38. 35 moves downward, causing the slider 35 to drive the lower support rod 36 to squeeze the additive digging bucket 33 outward, making it tilted. Then the pressing force is released, allowing the movable block 30 to return to its original position. During the return process, the slider 35 moves upward, causing the slider 35 to drive the support rod 36 to pull the additive digging bucket 33 forward. Thus, the tilted additive digging bucket 33 stops at the upper end of the additive outlet 40 after digging out the additive. Then the movable block 30 is pressed down, which will drive the additive digging bucket 33 to move backward. The additive will be loaded in the additive outlet 40 at the upper end of the baffle plate 42. The space in this space is equivalent to a mixing ratio.

[0056] S3, according to the corresponding ratio, press the movable block 30, and then rotate the support column 37 so that the locking rod 38 at the lower end of the support column 37 rotates to the slider 35 of other corresponding additives. By pressing according to the ratio, the corresponding proportion of additives can be squeezed by the pressing column 39 of the movable block 30 and fall into the dredging channel 15, and finally fall into the mixing tank 14.

[0057] S4, after the additives of the corresponding proportion enter the mixing tank 14, and the polymetallic ore in the mixing tank 6 falls into the polymetallic ore feed channel 16 and then falls into the mixing tank 14, the motor 18 is started, and the output end of the motor 18 drives the stirring shaft 23 to rotate the stirring rod 22. Through the stirring of the stirring rod 22, the additives and polymetallic ore are mixed together, and the rotation fully activates them.

[0058] S5, during the process of the motor 18 driving the stirring rod 22 to rotate and activate the additive and polymetallic ore, the motor 18 drives the turntable 19 to rotate. When the turntable 19 rotates, it drives the three movable shafts 25 to rotate. The connecting rods 21 on the three movable shafts 25 also rotate around the rotating groove 26 using the retaining shaft 27. When the retaining shaft 27 rotates to the lower end near the discharge port 24, the retaining shaft 27 will gradually cause the conveying plate 28 at the lower end of the blocking rod 20 to sink due to the obtuse angle groove on the rotating groove 26. At the lower end of the inlet / outlet 24, the activated polymetallic ore falls into the lower channel box 13, and then falls onto the filter plate 11. Unqualified polymetallic ore will fall from the filter plate 11 onto the lower bottom plate 9. As the turntable 19 continues to rotate, during the process of the retaining shaft 27 returning to the upper end, it will drive the retaining shaft 27 to rotate slightly upward, causing the fixed angle blocking rod 20 to move upward, causing the conveying plate 28 to disengage from the outlet 24, so that the other positions of the turntable 19 are in contact with the outlet 24, making the interior of the mixing tank 14 a closed state.

[0059] Overall Process Principle: Polymetallic ore is fed into ball mill 2 via feed belt 1. The slurry formed after grinding in the ball mill enters buffer tank 3 at the discharge end of ball mill 2, and is then pumped into hydrocyclone 5 by slurry pump 4. After classification by hydrocyclone, the qualified particle size of the slurry enters mixing tank 6, while the unqualified particle size is returned to ball mill 2 through coarse sand outlet. In mixing tank 6, the first group of combined inhibitors and collectors are added. The combined inhibitors are zinc sulfate and sodium sulfite, with a ratio of 5:1; the collector is ethyl thiocyanate. In the roughing stage of copper-lead co-concentration, flotation machine 7 is used to achieve the first stage of zinc inhibition and copper-lead collection. The slurry after roughing and collection enters the copper-lead co-concentration first-stage flotation machine through the discharge outlet of flotation machine 7. In the first-stage flotation section of copper-lead co-concentration, second-stage flotation reagents are added. The collectors are ethyl thiocyanate and ethyl xanthate, with a ratio of 2:1. 1. Foaming agent #2 oil, with sodium sulfite as the depressant. It has a certain inhibitory effect on zinc and a certain activating effect on chalcopyrite. This section not only collects the difficult-to-dissolve copper and lead that did not float in the roughing section, but also collects the fine-grained intergrowths of copper, lead and zinc that are not fully liberated. The foam generated by the first sweep of the collector is transported back to the ball mill 2 by the second slurry pump 8 for further grinding and dissociation. After the first sweep of the collector, the slurry enters the second sweep of the copper-lead mixed separation 9 through the discharge port of the flotation machine 7. In the second sweep of the copper-lead mixed separation, the combined collectors ethyl thiocyanate and ethyl xanthate and foaming agent #2 oil are added. The ratio of the combined collectors is 1:1 to achieve the third collection of copper, lead and intergrowths. The foam from the second sweep of the collector is returned to the first sweep. The slurry after the second sweep of the collector forms the final tailings 17 of the copper-lead mixed separation, which enters the next process of zinc beneficiation. The foam produced from the roughing stage of the copper-lead mixed beneficiation enters the first refiner (11). After enrichment in the first refiner, the scraped foam enters the second refiner (12). In the second refiner stage, a second group of inhibitors, consisting of zinc sulfate, sodium sulfite, and sodium carbonate in a ratio of 5:1:3, is added to achieve a second inhibition of zinc minerals. After enrichment in the third refiner stage, the foam produced enters the final copper-lead mixed beneficiation fourth refiner (14). In the fourth refiner stage, a third group of inhibitors, consisting of zinc sulfate, sodium sulfite, and sodium carbonate in a ratio of 5:2:5, is added to achieve a third strong inhibition of zinc minerals, ensuring the production of high-quality copper-lead mixed concentrate (18). This lays the foundation for the next step of copper-lead separation to obtain high-quality, low-impurity copper and lead products. The middlings (15) from the bottom runoff of the beneficiation zone are pumped back to the ball mill by the slurry pump (10) for further grinding and dissociation of intergrowths and impurities, ensuring full recovery of copper and lead minerals and improving the quality of the mixed concentrate product.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A comprehensive polymetallic ore recovery device, comprising a belt conveyor (1), a ball mill (2), a buffer tank (3), a slurry pump (4), a hydrocyclone (5), a mixing tank (6), a flotation machine (7), and a second slurry pump (8), wherein the conveying end of the belt conveyor (1) is connected to the feed inlet of the ball mill (2), the discharge outlet of the ball mill (2) is connected to the buffer tank (3), and the discharge outlet of the buffer tank (3) is connected to the slurry pump (4). Furthermore, the slurry pump (4) is connected to the hydrocyclone (5), and the hydrocyclone (5) is connected to the mixing tank (6). One end of the mixing tank (6) is connected to the flotation machine (7), and the flotation machine (7) is connected to the second slurry pump (8). The second slurry pump (8) is connected to the feed inlet of the ball mill (2), and the other outlet end of the hydrocyclone (5) is connected to the feed inlet of the ball mill (2). The characteristic of this design is that... It also includes: The flotation machine (7) is set in multiple groups, and the multiple groups of flotation machines (7) are arranged in a bifurcated manner into two rows, and the two rows of flotation machines (7) are connected in sequence. The multiple groups of flotation machines (7) are used for filtering and dissociating different polymetallic ores. A combination agent proportioning device is installed at the feed inlet of the flotation machine (7) to add the combination agent to activate the internal polymetallic ore; A filtration device installed inside the flotation machine (7) for separating polymetallic ores; The multiple sets of flotation machines (7) include a bottom plate (9), a baffle (10), a filter plate (11), a support frame (12), a channel box (13), a mixing tank (14), a dredging channel (15), a polymetallic ore feed channel (16), and an additive feed channel (17); The filtration device includes a motor (18), a turntable (19), a baffle rod (20), a connecting rod (21), a stirring rod (22), and a stirring shaft (23). The lower end of the mixing tank (14) is provided with a discharge port (24) corresponding to the inlet of the channel box (13). The side end of the support frame (12) is fixedly connected to the motor (18) corresponding to the position of the mixing tank (14). The output end of the motor (18) passes through the mixing tank (14) and extends into the interior. The stirring shaft (23) is movably connected inside the mixing tank (14). The stirring shaft (23) and the motor (18) are connected to each other. The output ends are fixedly connected together, and a stirring rod (22) is fixedly connected to the outer wall of the stirring shaft (23). A turntable (19) is fixedly connected to the inside of the mixing tank (14) on the stirring shaft (23). A protruding annular shielding wall on the turntable (19) fits against the mixing tank (14). Three movable shafts (25) are movably connected to the turntable (19). A connecting rod (21) is movably connected to the three movable shafts (25). A shielding rod (20) is movably connected to the three movable shafts (25). The shielding rod (20) and the connecting rod (21) are stacked together. The mixing tank (14) has a rotating groove (26) on its side wall, and the rotating groove (26) is arranged in a ring shape. The position of the rotating groove (26) corresponding to the discharge port (24) is set in a trapezoidal shape. The other end of the connecting rod (21) is fixedly connected to a retaining shaft (27), and the retaining shaft (27) is located inside the rotating groove (26) and is movably connected together. One end of each of the three blocking rods (20) is fixedly connected to a conveying plate (28), and the conveying plate (28) is inclined and the conveying plate (28) and the connecting rod (21) are set at a fixed angle.

2. The polymetallic ore comprehensive recovery equipment according to claim 1, characterized in that: Inclined baffles (10) are fixedly connected to the upper ends of the bottom plate (9) on both sides, and a filter plate (11) is fixedly connected between the two baffles (10) at the upper end of the bottom plate (9). A support frame (12) is fixedly connected to the upper end of the two baffles (10), and a channel box (13) is fixedly connected to the support frame (12). A mixing tank (14) is movably connected to the upper end of the support frame (12) corresponding to the upper end of the channel box (13). A dredging channel (15) is provided on the side end of the mixing tank (14), and a polymetallic ore feed channel (16) is provided at the upper end of the dredging channel (15). An additive feed channel (17) is provided at the upper end of the dredging channel (15) corresponding to the side end of the polymetallic ore feed channel (16).

3. The polymetallic ore comprehensive recovery equipment according to claim 2, characterized in that: The additive mixing device includes a second support plate (29), a movable block (30), a fixed block (31), an additive connecting rod (32), an additive digging bucket (33), a chute (34), a slider (35), and a support rod (36). The additive feed channel (17) is a square box with four second support plates (29). The four second support plates (29) are fixedly connected to the side wall of the additive feed channel (17), and the four second support plates (29) are movably connected to each other. Two fixed blocks (31) are fixedly connected to the outer wall of each second support plate (29), and the lower ends of the two fixed blocks (31) are movably connected to the additive connecting rods (32). The lower ends of the two additive connecting rods (32) are fixedly connected to the additive digging bucket (33). The inner walls of the four second support plates (29) are provided with sliding grooves (34), and the bottom end of the sliding grooves (34) is movably connected to the slider (35) by a spring. The lower end of the slider (35) is movably connected to the support rod (36), and the support rod (36) is movably connected to the additive digging bucket (33).

4. The polymetallic ore integrated recovery equipment according to claim 3, characterized in that: The upper end of the movable block (30) is movably connected to a support column (37), and the support column (37) is fixedly connected to a locking rod (38) at the lower end of the movable block (30). One end of the locking rod (38) is provided with a spring clip, and the four sliders (35) are provided with a slot at one end. The lower end of the movable block (30) is fixedly connected to a pressing column (39).

5. The polymetallic ore comprehensive recovery equipment according to claim 4, characterized in that: The bottom end of the additive feed channel (17) is provided with an additive outlet (40), and the side end of the additive feed channel (17) is provided with an additive channel. An additive plate is movably connected in the additive channel, and a rotating rod (41) is movably connected to the lower end of the additive feed channel (17). The rotating rod (41) is movably connected to the bottom wall of the additive feed channel (17) through a torsion spring. Both ends of the rotating rod (41) are fixedly connected to a baffle plate (42) through a connecting rod. The baffle plate (42) is the same size as the additive outlet (40).

6. A method for comprehensive recovery of polymetallic ores, implemented using a comprehensive recovery device for polymetallic ores as described in claim 5, characterized in that, Includes the following steps: S1, the polymetallic ore is transported to the ball mill (2) by the belt conveyor (1). After being ground by the ball mill (2), the slurry is then buffered in the buffer tank (3) and then sent to the slurry pump (4). The slurry is then sent to the hydrocyclone (5) by the slurry pump (4). After being classified by the hydrocyclone (5), the qualified particle size slurry is sent to the mixing tank (6). The qualified slurry is then sent to the flotation machine (7) by the mixing tank (6). Finally, the ore is sent to the ball mill (2) by the second slurry pump (8) for further grinding and separation. S2, when the slurry passes through the flotation machine (7), the slurry enters the dredging channel (15) from the polymetallic ore feed channel (16), and then enters the mixing tank (14) from the dredging channel (15). When it is necessary to add additives to the flotation machine (7), first put different types of additives into the additive plate, and then put the additive plate containing the additives into the additive feed channel (17). By rotating the support column (37), the lower end of the clamping rod (38) is rotated to the side corresponding to the additive. The spring clip at one end of the clamping rod (38) engages with the slot on the slider (35). Then, by pressing the movable block (30), the movable block (30) moves downward. During the movement, the slider is driven by the clamping rod (38). 35) Move downwards, so that the slider (35) drives the support rod (36) at the lower end to squeeze the additive digging bucket (33) outwards, so that the additive digging bucket (33) becomes tilted. Then release the pressing force to restore the movable block (30). During the restoration process, the slider (35) moves upwards, so that the slider (35) drives the support rod (36) to pull the additive digging bucket (33) forward. Thus, the tilted additive digging bucket (33) stops at the upper end of the additive outlet (40) after digging out the additive. Then press the movable block (30) to move downwards, which will drive the additive digging bucket (33) to move backwards. The additive will be loaded in the additive outlet (40) at the upper end of the baffle plate (42). The space in this space is equivalent to a ratio. S3, press the movable block (30) according to the corresponding ratio, and then rotate the support column (37) so that the lever (38) at the lower end of the support column (37) rotates to the slider (35) of other corresponding additives. By pressing according to the ratio, the corresponding proportion of additives can be squeezed by the pressing column (39) of the movable block (30) and fall into the dredging channel (15) and finally fall into the mixing tank (14). S4, after the additives of the corresponding proportion enter the mixing tank (14) and the polymetallic ore in the stirring tank (6) falls into the polymetallic ore feed channel (16) and then falls into the mixing tank (14), the motor (18) is started, and the output end of the motor (18) drives the stirring shaft (23) to rotate the stirring rod (22). Through the stirring of the stirring rod (22), the additives and polymetallic ore are mixed together, and the rotation fully activates them. S5, during the process of the motor (18) driving the stirring rod (22) to rotate and activate the additive and polymetallic ore, the motor (18) drives the turntable (19) to rotate. When the turntable (19) rotates, it will drive the three movable shafts (25) to rotate. The connecting rods (21) on the three movable shafts (25) will also rotate around the rotating groove (26) using the clamping shaft (27). When the clamping shaft (27) rotates to the lower end near the discharge port (24), the clamping shaft (27) will gradually move the conveying plate (28) at the lower end of the blocking rod (20) due to the obtuse angle groove on the rotating groove (26). The activated polymetallic ore falls into the lower end of the discharge port (24) and then into the lower channel box (13), and then onto the filter plate (11). The unqualified polymetallic ore will fall from the filter plate (11) onto the lower bottom plate (9). As the turntable (19) continues to rotate, during the process of the clamping shaft (27) returning to the upper end, it will drive the clamping shaft (27) to rotate slightly upward, causing the fixed angle blocking rod (20) to move upward, causing the conveying plate (28) to disengage from the discharge port (24), so that the other positions of the turntable (19) are in contact with the discharge port (24), making the interior of the mixing tank (14) closed.

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