A molybdenum concentrate acid leaching impurity removal device

Abstract

This invention relates to the field of molybdenum concentrate processing technology, specifically to an acid leaching and impurity removal device for molybdenum concentrate. It includes a reaction vessel body, within which a stirring mechanism is installed, and a power mechanism driving the stirring mechanism is mounted on the reaction vessel body. The stirring mechanism includes a first stirring frame and a second stirring frame, rotatably supported by different rotating shafts. A baffle plate is rotatably mounted between the first and second stirring frames below them. An arc-shaped plate is slidably fitted below the baffle plate, and an arc-shaped groove is formed on the upper surface of the arc-shaped plate. An elastic component for driving the baffle plate to return to its original position is installed within the arc-shaped groove. An ultrasonic probe extending downwards is located at the top of the reaction vessel body. This invention generates periodic, instantaneous strong shear by driving the elastic baffle plate through a vertical stirring frame, which synergizes with ultrasonic cavitation. This achieves highly efficient crushing and impurity removal of molybdenum concentrate agglomerates without additional energy consumption, significantly improving impurity removal efficiency and shortening reaction time.

Description

Technical Field

[0001] This invention relates to the field of molybdenum concentrate processing technology, specifically to an acid leaching and impurity removal device for molybdenum concentrate. Background Technology

[0002] Molybdenum concentrate is an important raw material for extracting molybdenum metal, and its main component is molybdenum disulfide. In the hydrometallurgical production of ammonium molybdate, high-purity molybdenum trioxide, and other chemical products, acid leaching is a crucial pretreatment step. This step aims to remove acid-soluble impurities such as iron, copper, lead, and calcium from the molybdenum concentrate using acids (such as hydrochloric acid and nitric acid). The presence of these impurities severely affects the purity and value of subsequent products. However, the acid leaching process for molybdenum concentrate has long suffered from low efficiency, poor results, and long reaction times. The fundamental reason for this lies in the unique physicochemical properties of molybdenum disulfide.

[0003] Molybdenum disulfide has a typical layered crystal structure, with layers connected by relatively weak van der Waals forces. During conventional acid leaching, the acid solution struggles to effectively penetrate and flush these interlayer gaps, preventing internal impurities from reacting with the acid and creating a "shielding effect." Furthermore, molybdenum concentrate powder has a fine particle size, large specific surface area, and high surface energy, making it highly susceptible to agglomeration in liquid-solid systems through van der Waals forces and electrostatic interactions, forming large agglomerates. The acid solution primarily contacts the outer surface of these agglomerates, effectively protecting the impurities within them and hindering their collision and reaction with the acid. This creates a significant "mass transfer barrier," severely limiting the reaction rate and the depth of impurity removal.

[0004] In the prior art, patent application CN119710306A discloses a method for removing impurities from molybdenum concentrate using an external field-enhanced process. This method involves adding the obtained roasted material to a hydrochloric acid solution, leaching it under ultrasonic conditions, and then sequentially filtering, washing, and drying to obtain the acid-leached material. However, the disclosed technique is simplistic and lacks a corresponding specific implementation structure.

[0005] In the prior art, patent application CN115652086A discloses a high-pressure nitric acid leaching treatment device used in molybdenum concentrate smelting. The device includes a stirring mechanism housed within the reactor. This stirring mechanism comprises a stirring assembly and multiple sets of stirring blades arranged circumferentially at equal intervals. The stirring assembly can stir the material within the reactor using the stirring blades. However, this method suffers from a singular stirring flow field, which fails to effectively overcome micro-agglomeration and interlayer shielding, resulting in poor impurity removal and excessively long reaction times. Summary of the Invention

[0006] This invention provides an acid leaching and impurity removal device for molybdenum concentrate, which solves the technical problems in the existing acid leaching equipment, such as the inability to effectively break through micro-agglomerates and interlayer shielding, resulting in poor impurity removal effect and excessively long reaction time.

[0007] To solve the above problems, the present invention provides a molybdenum concentrate acid leaching and impurity removal device with the following technical solution: The reactor includes a reaction vessel body, a stirring mechanism inside the reaction vessel body, and a power mechanism for driving the stirring mechanism on the reaction vessel body. The bottom of the reaction vessel body is provided with support legs and a discharge pipe on the bottom surface. The top of the reaction vessel body is provided with a feed pipe. The stirring mechanism includes a first stirring frame and a second stirring frame that are rotatably supported by different rotating shafts. The plane where the first stirring frame is located is perpendicular to the plane where the second stirring frame is located. A baffle is rotatably provided between the lower parts of the first stirring frame and the second stirring frame. An arc-shaped plate is slidably fitted below the baffle. An arc-shaped groove is formed on the upper surface of the arc-shaped plate. An elastic component for driving the baffle to reset is provided in the arc-shaped groove. During the rotation of the first stirring frame and the second stirring frame, the baffle is alternately driven to rotate. After the baffle is disengaged from the first stirring frame or the second stirring frame, it rotates momentarily under the action of the elastic component.

[0008] The reactor body is equipped with a downward-extending ultrasonic probe at the top.

[0009] By employing the above technical solution, a three-dimensional shearing field is formed by vertically arranged first and second stirring frames. Simultaneously, the rotation of the first and second stirring frames drives the rotation of a baffle plate. The baffle plate, through its elastic components, generates periodic instantaneous rotation. This periodic rotation and instantaneous reversal of the baffle plate generates strong transient eddies and microjets, disrupting the stable structure of powder agglomerates and preventing particle re-agglomeration. Furthermore, the continuous stirring by the first and second stirring frames cleverly drives the baffle plate to produce pulsed turbulence, requiring no additional energy input and converting single-dimensional stirring energy into multi-dimensional fragmentation energy, resulting in extremely high energy utilization.

[0010] Overall, the synergy of the three mechanisms—steady three-dimensional stirring, transient elastic disturbance, and ultrasonic cavitation—creates a fully coordinated energy field, effectively improving the efficiency and effectiveness of impurity removal.

[0011] Furthermore, the spoiler is circular and has a centrally symmetrical arc-shaped groove on its outer periphery. The bottom side of the rotating shaft of the first and second stirring racks is provided with a power rod that cooperates with the arc-shaped groove.

[0012] By adopting the above technical solution, the first and second stirring racks are symmetrically arranged to alternately cooperate with the baffle plate. In a complete cycle, energy input and release are provided twice, which doubles the frequency of instantaneous disturbance and improves mixing efficiency.

[0013] Furthermore, the arc-shaped groove includes an arc-shaped guide groove and a power arc-shaped push groove that cooperates with the power rod.

[0014] Using the above technical solution, the arc-shaped guide groove provides a smooth transition path for the cutting of the power rod. The arc-shaped power groove enables the power rod to drive the spoiler to rotate in a forced and reliable manner when rotating, and to naturally disengage after rotating a certain angle.

[0015] Furthermore, the elastic component includes two fixed blocks spaced apart and an arc-shaped guide rod that passes through the two fixed blocks in sequence, with a spring correspondingly sleeved on the arc-shaped guide rod.

[0016] Below the spoiler is a cylindrical block that extends into the arc-shaped groove and is located at the end of the spring.

[0017] Furthermore, the cylindrical blocks are two spaced apart and located on opposite sides of the arc-shaped guide rod; the cylindrical blocks are in contact with the sidewalls of the adjacent arc-shaped grooves.

[0018] Using the above technical solution, the spring is compressed between the cylindrical block and the fixed block. Under the constraint of the arc-shaped guide rod, the cylindrical block can only slide along a preset arc-shaped trajectory, ensuring that the rotation and repositioning motion of the spoiler strictly follow the predetermined arc-shaped path, avoiding any jamming or deviation, and making the trajectory of each rotation completely consistent. The spring is pushed by the two spaced cylindrical blocks, improving stability during the compression process. Furthermore, the cylindrical block fits against the sidewall of the arc-shaped groove, stably propelling the spring while simultaneously forming a guiding fit with the arc-shaped groove, further improving the stability of the spoiler's rotation.

[0019] Furthermore, the spoiler plate is provided with multiple spiral through grooves arranged at intervals.

[0020] Using the above technical solution, when the baffle rotates instantaneously, a huge instantaneous pressure difference is generated on both sides. The fluid is forced to pass through these spiral channels at high speed, forming multiple directional high-speed micro-jet streams, which cut and tear the clumps flowing through the baffle. The high-speed jets directly impact the surface and interlayer of MoS2 particles, greatly promoting the peeling of the surface passivation layer and the exposure of interlayer impurities.

[0021] Furthermore, both the first and second stirring racks include two stirring blades fixed on the rotating shaft and symmetrically arranged. Each stirring blade includes a rectangular frame, and two rectangular turbulence zones are formed within the rectangular frame by a partition. The rectangular turbulence zone away from the rotating shaft is provided with a first turbulence cutter plate arranged vertically at intervals, and the rectangular turbulence zone close to the rotating shaft is provided with a second turbulence cutter plate arranged horizontally at intervals.

[0022] Furthermore, the first spoiler cutter is inclined from top to bottom, and the second spoiler cutter is inclined from front to back.

[0023] Using the above technical solution, when the first and second stirring racks are stirring, the inclined first and second turbulence cutting plates will form shear fluids in different directions, which can effectively prevent solid particles from accumulating at the bottom or side of the vessel. The high-intensity shear turbulence directly breaks up the molybdenum concentrate agglomerates, while ensuring that all materials can be transported to the vicinity of the turbulence plates, creating the best conditions for the turbulence plates to exert their "instantaneous high-intensity impact" effect.

[0024] Furthermore, the power mechanism includes a driving gear driven by a motor and driven gears distributed on both sides of the driving gear and meshing with the driving gear. The two driven gears respectively drive the two rotating shafts supporting the first stirring frame and the second stirring frame to rotate. A support plate is provided on the bottom surface of the reaction vessel body. The bottom end of the rotating shaft is rotatably mounted on the support plate. The baffle plate is rotatably mounted on the support plate and the arc plate is fixedly mounted on the support plate.

[0025] Furthermore, a corrosion-resistant sleeve is suspended from the top of the reactor body, and the ultrasonic probe is located at the bottom end of the corrosion-resistant sleeve. The wire connected to the ultrasonic probe passes through the top end of the corrosion-resistant sleeve and extends outward from the top of the reactor body.

[0026] Using the above technical solution, the shock waves and microjets generated by the cavitation effect of ultrasound in the liquid can ensure the dispersion of ultrafine particles, while destroying the passivation layer on the surface of the mineral crystal structure. It also complements mechanical stirring, forming a full-coverage mixing and force field from the centimeter level to the micrometer level.

[0027] The anti-corrosion pipes installed during suspension serve two purposes: firstly, to avoid affecting the function of the ultrasonic probe, and secondly, to form a protective structure and extend its service life.

[0028] The beneficial effects of the molybdenum concentrate acid leaching and impurity removal equipment provided by this invention are: 1. In this invention, the vertically arranged first and second stirring racks form a three-dimensional shear field, which drives the baffle plate to pulse turbulence, converting single stirring energy into multi-dimensional crushing energy, resulting in high energy utilization. The steady-state three-dimensional stirring, transient elastic disturbance and ultrasonic cavitation work together to form a triple synergistic mechanism, forming a fully coordinated energy field, which effectively improves the efficiency and effect of impurity removal.

[0029] 2. In this invention, the first and second stirring racks and the baffles are symmetrically arranged to work alternately, providing two energy inputs and releases in one complete cycle, thus doubling the instantaneous disturbance frequency and improving mixing efficiency. Furthermore, the spiral grooves on the baffles, when rotating instantaneously, cause the fluid to form multiple directional high-speed microjets, cutting and tearing clumps, promoting the peeling of the surface passivation layer and the exposure of interlayer impurities.

[0030] 3. In this invention, the arc-shaped guide groove provides a smooth transition path for the power rod to cut in, and the arc-shaped drive groove enables the power rod to reliably drive the spoiler to rotate and naturally disengage; the elastic component structure ensures that the rotation and reset of the spoiler strictly follow the predetermined arc-shaped path, avoiding jamming or deviation, and the two cylindrical blocks improve compression stability and cooperate with the arc-shaped groove to guide and improve rotational stability.

[0031] 4. In this invention, the cavitation effect of ultrasound and mechanical stirring complement each other to form a fully covered mixing and force field; the anti-corrosion sleeve installed on the hanging device avoids affecting the function of the ultrasonic probe and forms a protective structure to improve service life. Attached Figure Description

[0032] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the structure of the molybdenum concentrate acid leaching and impurity removal equipment of the present invention; Figure 2 This is one of the cross-sectional views of the molybdenum concentrate acid leaching and impurity removal equipment of the present invention; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a second cross-sectional view of the molybdenum concentrate acid leaching and impurity removal equipment of the present invention; Figure 5 for Figure 4 A magnified view of a portion of region B in the middle; Figure 6 This is a schematic diagram of the structure of the stirring mechanism, the power mechanism, and the baffle plate in this invention. Figure 7 This is a top view of the spoiler and power rod in this invention; Figure 8 This is a top cross-sectional view of the arc-shaped plate in this invention.

[0033] Explanation of reference numerals in the attached figures: 1. Reactor body; 11. Discharge pipe; 12. Feed pipe; 13. Support plate; 14. Corrosion-resistant sleeve; 2. Stirring mechanism; 21. First stirring frame; 211. Stirring blade; 2111. Rectangular frame; 2112. Partition plate; 2113. First turbulence cutter plate; 2114. Second turbulence cutter plate; 22. Second stirring frame; 23. Power rod; 3. Power mechanism; 31. Drive gear; 32. Driven gear; 4. Turbine plate; 40. Arc-shaped groove; 401. Arc-shaped guide groove; 402. Power arc-shaped groove; 41. Arc-shaped plate; 411. Arc-shaped groove; 42. Elastic component; 421. Fixing block; 422. Arc-shaped guide rod; 423. Spring; 43. Cylindrical block; 44. Spiral through groove; 5. Ultrasonic probe. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0036] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0037] An embodiment of an acid leaching and impurity removal device for molybdenum concentrate provided by the present invention: like Figures 1 to 8 As shown, The system includes a reaction vessel body 1, which contains a stirring mechanism 2 and a power mechanism 3 for driving the stirring mechanism 2. The bottom of the reaction vessel body 1 is supported by feet, and a discharge pipe 11 is located on the bottom surface. The top of the reaction vessel body 1 has a feed pipe 12. The reaction vessel body 1 is the main container of the entire equipment, with feet at the bottom for stable support. The discharge pipe 11 on the bottom surface is used to discharge the processed materials; the feed pipe 12 on the top is used to feed molybdenum concentrate and acid leaching solution into the reaction vessel body 1.

[0038] In this embodiment, the stirring mechanism 2 includes a first stirring frame 21 and a second stirring frame 22, which are rotatably supported by different rotating shafts. The plane of the first stirring frame 21 is perpendicular to the plane of the second stirring frame 22. Because the planes of the first stirring frame 21 and the second stirring frame 22 are perpendicular, the stirring area is more comprehensive, and the materials in the reactor body 1 can be stirred from different directions, thereby enhancing the stirring effect and promoting the uniformity of the reaction.

[0039] The first stirring frame 21 and the second stirring frame 22 both include two stirring blades 211 fixed on the rotating shaft and symmetrically arranged. The stirring blade 211 includes a rectangular frame 2111. Two rectangular turbulence zones are formed in the rectangular frame 2111 by a partition 2112. The rectangular turbulence zone away from the rotating shaft is provided with a first turbulence cutter 2113 arranged vertically at intervals, and the rectangular turbulence zone close to the rotating shaft is provided with a second turbulence cutter 2114 arranged horizontally at intervals.

[0040] The rectangular frame 2111 of the stirring blade 211 forms two rectangular turbulence zones through the partition 2112, so that the stirring blade 211 can form different turbulence zones when rotating, thereby enhancing the stirring effect.

[0041] Specifically, the first spoiler cutter 2113 is inclined from top to bottom, and the second spoiler cutter 2114 is inclined from front to back.

[0042] The first and second turbulence-disrupting cutters 2113 and 2114, set at different directions and angles, can cut and stir the material in different directions, further refining the material particles, promoting contact and reaction between reactants, and improving the impurity removal effect. Furthermore, the inclined first and second turbulence-disrupting cutters 2113 and 2114 can form shear fluids in different directions during stirring, effectively preventing solid particles from agglomerating at the bottom or sides of the vessel and breaking up molybdenum concentrate agglomerates.

[0043] In this embodiment, the power mechanism 3 includes a driving gear 31 driven by a motor and driven gears 32 distributed on both sides of the driving gear 31 and meshing with the driving gear 31. The two driven gears 32 respectively drive the two rotating shafts supporting the first stirring frame 21 and the second stirring frame 22 to rotate. A support plate 13 is provided on the bottom surface of the reactor body 1, and the bottom end of the rotating shaft is rotatably mounted on the support plate 13.

[0044] The stirring mechanism 2 operates by driving two shafts supporting the first stirring frame 21 and the second stirring frame 22 through two driven gears 32.

[0045] In this embodiment, a baffle 4 is rotatably disposed below the first stirring rack 21 and the second stirring rack 22. An arc-shaped plate 41 is slidably disposed below the baffle 4. The baffle 4 is rotatably mounted on the support plate 13, and the arc-shaped plate 41 is fixedly disposed on the support plate 13. A support shaft is disposed below the baffle 4, and the support shaft is rotatably supported on the support plate 13 via bearings. The arc-shaped plate 41 is fixedly disposed on the support plate 13. The support plate 13 has a left-right oriented structure, while the arc-shaped plate 41 has a front-back oriented structure. The upper surface of the arc-shaped plate 41 and the lower surface of the baffle 4 can slide relative to each other. The arc-shaped plate 41 can assist the support plate 13 in improving the stability of the support for the baffle 4.

[0046] An arc-shaped groove 411 is formed on the upper surface of the arc plate 41. An elastic component 42 for driving the baffle plate 4 to reset is provided in the arc groove 411. During the rotation of the first stirring frame 21 and the second stirring frame 22, the baffle plate 4 is driven to rotate alternately. After the baffle plate 4 is disengaged from the first stirring frame 21 or the second stirring frame 22, it rotates instantaneously under the action of the elastic component 42.

[0047] The elastic component 42 includes two fixed blocks 421 spaced apart, and an arc-shaped guide rod 422 that passes through the two fixed blocks 421 in sequence. A spring 423 is correspondingly sleeved on the arc-shaped guide rod 422.

[0048] Below the spoiler 4 is a cylindrical block 43 that extends into the arc-shaped groove 411 and is located at the end of the spring 423.

[0049] Specifically, there are two cylindrical blocks 43 spaced apart, positioned on either side of the arc-shaped guide rod 422. The cylindrical blocks 43 are in contact with the sidewalls of the adjacent arc-shaped grooves 411. By setting the arc-shaped grooves 411 to cooperate with the cylindrical blocks 43, on the one hand, a guide rail and slider structure is formed, improving the stability of the spoiler 4's rotation; on the other hand, during the rotation of the spoiler 4, the cylindrical blocks 43 will move in an arc shape, and during the movement, the springs 423 will be compressed to store energy, driving the spoiler 4 to rotate at a momentary high speed.

[0050] The spoiler 4 is circular and has a centrally symmetrical arc-shaped groove 40 on its outer periphery. The bottom side of the rotating shaft of the first stirring frame 21 and the second stirring frame 22 is provided with a power rod 23 that cooperates with the arc-shaped groove 40.

[0051] By using the arc-shaped grooves 40 arranged symmetrically at the center, the first stirring rack 21 and the second stirring rack 22 are alternately engaged with the baffle 4, providing two energy inputs and releases in a complete cycle, which doubles the frequency of instantaneous disturbances and improves mixing efficiency.

[0052] The arc-shaped groove 40 includes an arc-shaped guide groove 401 and a power arc-shaped groove 402 that cooperates with the power rod 23.

[0053] The arc-shaped guide groove 401 provides a smooth transition path for the cutting of the power rod 23, and the arc-shaped drive groove 402 enables the power rod 23 to drive the spoiler 4 to rotate in a forced and reliable manner when rotating, and to naturally disengage after rotating a certain angle.

[0054] The spoiler 4 is provided with multiple spiral grooves 44 arranged at intervals.

[0055] When the spoiler 4 rotates instantaneously, a huge instantaneous pressure difference is generated on both sides. The fluid is forced to pass through these spiral channels 44 at high speed, forming multiple directional high-speed micro-jet streams, which cut and tear the clumps flowing through the spoiler 4, promoting the peeling of the surface passivation layer and the exposure of interlayer impurities.

[0056] In this embodiment, an ultrasonic probe 5 extending downwards is provided at the top of the reactor body 1.

[0057] The reactor body 1 is equipped with a corrosion-resistant sleeve 14 suspended at the top. An ultrasonic probe 5 is located at the bottom of the corrosion-resistant sleeve 14. The wire connected to the ultrasonic probe 5 passes through the top of the corrosion-resistant sleeve 14 and extends outward from the top of the reactor body 1.

[0058] Specifically, the anti-corrosion sleeves 14 can be a number of spaced-out units, and the lengths of the anti-corrosion sleeves 14 are not the same. This is to achieve the cavitation effect of ultrasonic waves at different heights.

[0059] Specifically, the ultrasonic probe 5 can be detachably fixed to the bottom of the anti-corrosion sleeve 14 by means of threads, and then the wire passes through the anti-corrosion sleeve 14 to avoid contact with the acid immersion solution.

[0060] In this embodiment, the molybdenum concentrate acid leaching and impurity removal equipment is used by feeding the molybdenum concentrate raw material and acid leaching solution into the reaction vessel 1 in a certain proportion through the feed pipe 12. The motor is started, driving the drive gear 31 to rotate, which in turn drives the two driven gears 32 to rotate, causing the first stirring frame 21 and the second stirring frame 22 to start rotating. At the same time, the external ultrasonic generator is started, causing the ultrasonic probe 5 to start working.

[0061] During rotation, the stirring blades 211 on the first stirring frame 21 and the second stirring frame 22 generate shear fluids in different directions to stir the molybdenum concentrate and the acid leaching solution. The inclined first turbulence cutter 2113 and the second turbulence cutter 2114 prevent solid particles from agglomerating and break up agglomerates, ensuring uniform mixing of materials.

[0062] During the mixing process, the power rods 23 of the first mixing frame 21 and the second mixing frame 22 alternately enter the power arc-shaped groove 402 portion of the corresponding arc-shaped groove 40 of the spoiler 4, driving the spoiler 4 to rotate. When the power rod 23 rotates to a certain angle, it naturally disengages from the power arc-shaped groove 402. At this time, the spoiler 4 undergoes instantaneous reset rotation under the action of the elastic component 42.

[0063] When the baffle 4 rotates instantaneously, the spiral groove 44 on it causes the fluid to form multiple directional high-speed micro-jet streams, which cut and tear the clumps, promoting the peeling of the surface passivation layer and the exposure of interlayer impurities.

[0064] The ultrasonic cavitation effect generated by the ultrasonic probe 5 forms shock waves and microjets in the liquid. In conjunction with mechanical stirring, it further ensures the dispersion of ultrafine particles and the destruction of the passivation layer on the surface of mineral crystal structure, achieving full coverage mixing and force field from centimeter to micrometer level, and improving the impurity removal effect.

[0065] Overall, the stirring structure drives the elastic baffle 4 to generate periodic instantaneous strong shear, which works in synergy with ultrasonic cavitation to achieve efficient crushing and impurity removal of molybdenum concentrate agglomerates without additional energy consumption, significantly improving the impurity removal efficiency and shortening the reaction time.

[0066] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0067] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A molybdenum concentrate acid leaching and impurity removal device, comprising a reaction vessel body (1), wherein a stirring mechanism (2) is provided inside the reaction vessel body (1) and a power mechanism (3) for driving the stirring mechanism (2) is provided on the reaction vessel body (1), the bottom of the reaction vessel body (1) is provided with support legs and a discharge pipe (11) is provided on the bottom surface, and the top of the reaction vessel body (1) is provided with a feed pipe (12), characterized in that, The stirring mechanism (2) includes a first stirring frame (21) and a second stirring frame (22) that are rotatably supported by different rotating shafts. The plane where the first stirring frame (21) is located is perpendicular to the plane where the second stirring frame (22) is located. A baffle plate (4) is rotatably provided between the bottom of the first stirring frame (21) and the second stirring frame (22). An arc plate (41) is slidably provided below the baffle plate (4). An arc groove (411) is formed on the upper surface of the arc plate (41). An elastic component (42) for driving the baffle plate (4) to reset is provided in the arc groove (411). During the rotation of the first stirring frame (21) and the second stirring frame (22), the baffle plate (4) is driven to rotate alternately. After the baffle plate (4) is disengaged from the first stirring frame (21) or the second stirring frame (22), it rotates instantaneously under the action of the elastic component (42). The reactor body (1) is equipped with a downward-extending ultrasonic probe (5) at the top.

2. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 1, characterized in that, The spoiler (4) is circular and the outer periphery of the spoiler (4) is provided with a centrally symmetrical arc-shaped groove (40). The bottom side of the rotating shaft of the first stirring rack (21) and the second stirring rack (22) are provided with a power rod (23) that cooperates with the arc-shaped groove (40).

3. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 2, characterized in that, The arc-shaped groove (40) includes an arc-shaped guide groove (401) and a power arc-shaped groove (402) that cooperates with the power rod (23).

4. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 1, characterized in that, The elastic component (42) includes two fixed blocks (421) spaced apart and an arc-shaped guide rod (422) that passes through the two fixed blocks (421) in sequence. A spring (423) is correspondingly sleeved on the arc-shaped guide rod (422). Below the spoiler (4) is a cylindrical block (43) that extends into the arc groove (411) and is located at the end of the spring (423).

5. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 4, characterized in that, The cylindrical blocks (43) are two spaced apart and are located on both sides of the arc-shaped guide rod (422); the cylindrical blocks (43) are in contact with the side wall of the adjacent arc-shaped groove (411).

6. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 1, characterized in that, The spoiler (4) is provided with a plurality of spiral grooves (44) arranged at intervals.

7. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 1, characterized in that, The first stirring rack (21) and the second stirring rack (22) both include two stirring blades (211) fixed on the rotating shaft and symmetrical in the center. The stirring blade (211) includes a rectangular frame (2111). Two rectangular turbulence zones are formed in the rectangular frame (2111) through a partition (2112). The rectangular turbulence zone away from the rotating shaft is provided with a first turbulence cutter (2113) arranged vertically at intervals, and the rectangular turbulence zone close to the rotating shaft is provided with a second turbulence cutter (2114) arranged horizontally at intervals.

8. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 7, characterized in that, The first spoiler cutter (2113) is inclined from top to bottom, and the second spoiler cutter (2114) is inclined from front to back.

9. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 1, characterized in that, The power mechanism (3) includes a drive gear (31) driven by a motor and driven gears (32) distributed on both sides of the drive gear (31) and meshing with the drive gear (31). The two driven gears (32) respectively drive the two rotating shafts supporting the first stirring frame (21) and the second stirring frame (22) to rotate. The bottom surface of the reactor body (1) is provided with a support plate (13). The bottom end of the rotating shaft is rotatably mounted on the support plate (13). The baffle plate (4) is rotatably mounted on the support plate (13) and the arc plate (41) is fixedly mounted on the support plate (13).

10. The molybdenum concentrate acid leaching and impurity removal equipment according to claim 1, characterized in that, The reactor body (1) is equipped with a corrosion-resistant sleeve (14) suspended at the top. The ultrasonic probe (5) is located at the bottom of the corrosion-resistant sleeve (14). The wire connected to the ultrasonic probe (5) passes through the top of the corrosion-resistant sleeve (14) and extends outward from the top of the reactor body (1).

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