A bauxite pulp grinding device

Abstract

The present invention belongs to the technical field of pulp grinding, and specifically refers to a bauxite pulp grinding device. A bauxite pulp grinding device includes a material induction mechanism, a liquid addition mechanism, and a pulp grinding mechanism. Through the material induction mechanism, the present invention can sense the mass of the added bauxite fragments, and automatically control the liquid addition amount based on this, so that the two match each other to ensure the solid content. Moreover, in order to avoid the volume fluctuation in the rotary metering sleeve caused by the inclination of the rotary discharge box during the feeding process, the present invention also creatively proposes a technical solution for automatically locking the position of the volume control piston plate in the early stage of rotary feeding, and can also automatically unlock the volume control piston plate in the reset stage.

Description

Technical Field

[0001] The present invention belongs to the technical field of pulp grinding, and specifically refers to a bauxite pulp grinding device. Background Art

[0002] In alumina production, bauxite is mostly used as the main raw material. After being crushed, the bauxite is ground into bauxite pulp with qualified particle size by adding appropriate circulating caustic liquor, and then through processes such as pre-desilication, digestion, decomposition, filtration of aluminum hydroxide, and calcination, the finished alumina is finally produced. Raw material grinding is one of the important processes in alumina production, and the solid content (content of solid ore particles) of the pulp after grinding has a very important impact on subsequent processes such as pre-desilication and digestion.

[0003] To achieve precise control of the solid content in the pulp, it is first necessary to ensure the precise metering of raw materials such as bauxite and circulating caustic liquor to control the ratio and solid content of the raw materials;

[0004] Because the bauxite at this time has not been fully ground into powder but is in the form of initially crushed pieces, it is impossible to accurately sense and control the dosage through the opening time of the valve like powdery materials; if the dosage of bauxite cannot be known, naturally it is impossible to control the dosage of circulating caustic liquor.

[0005] The current control methods mostly detect the solid content of the pulp at the discharge end at the back end and then control the liquid addition amount in the front; this lagging adjustment method actually has a weak control ability for the solution, far less than accurately controlling the addition amounts of bauxite and circulating caustic liquor when adding materials. Summary of the Invention

[0006] In view of the above situation, to overcome the defects of the prior art, the present invention proposes a bauxite pulp grinding device that can automatically control the addition amount of circulating caustic liquor according to the addition amount of solid fragments. Through the material sensing mechanism, the mass of the added bauxite fragments can be sensed, and based on this, the addition amount of the liquid is automatically controlled to make the two match each other to ensure the solid content; moreover, in order to avoid the volume fluctuation in the rotary metering sleeve caused by the inclination of the rotary discharge box during the feeding process, the present invention also creatively proposes a technical solution that can automatically lock the position of the volume control piston plate first in the early stage of rotary feeding, and can also automatically unlock the volume control piston plate first during the reset stage.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a bauxite pulp grinding device, which includes a material sensing mechanism, a liquid addition mechanism, and a pulp grinding mechanism. The pulp grinding mechanism includes a grinding component and a grinding driving component. The grinding driving component is rotationally connected to the grinding component. The material sensing mechanism is arranged on the grinding component, and the liquid addition mechanism is arranged on the grinding component.

[0008] Furthermore, the material sensing mechanism includes a rotary drive assembly and a weight sensing assembly. The rotary drive assembly is arranged on the grinding assembly, and the weight sensing assembly is arranged on the rotary drive assembly.

[0009] The material sensing mechanism can sense the mass of each bauxite fragment entering, and automatically adjust the amount of liquid entering each time according to the mass of the bauxite, so as to achieve the coordinated addition of the two raw materials, thereby controlling the content of solid ore particles in the pulp.

[0010] As a further preference of the present invention, the grinding assembly includes a pulp grinding cylinder, and a top feed hopper is arranged on the pulp grinding cylinder. The rotary drive assembly includes a feed motor and a crossbeam-type rotating bracket. The crossbeam-type rotating bracket is fixedly connected inside the top feed hopper, the feed motor is fixedly connected to one end of the top feed hopper, and a central sealing round hole is arranged on the crossbeam-type rotating bracket.

[0011] Preferably, the weight sensing assembly includes a rotating discharge box, a load plate, a fixed baffle, and a tension spring. A blind sleeve is arranged at one end of the rotating discharge box, the blind sleeve is sleeved on the output shaft of the feed motor, and the output shaft of the feed motor is fixedly connected to the blind sleeve. A through sleeve is arranged at the other end of the rotating discharge box, and a first set of spline teeth are annularly and evenly arranged on the through sleeve. The fixed baffle is fixedly connected in the rotating discharge box. An induction piston plate connected by a connecting rod is arranged at the bottom of the load plate, and the induction piston plate is clamped and slidably arranged in the rotating discharge box. The tension spring is arranged between the induction piston plate and the fixed baffle.

[0012] The sinking of the load plate together with the induction piston plate can reflect the mass of the heavy object on the load plate at this time, and thereby adjust the flow of the transmission liquid in the rotating discharge box and the rotating type metering sleeve, and further achieve the technical purpose of automatically controlling the position of the self-adaptive locking piston assembly.

[0013] Furthermore, the liquid adding mechanism includes a rotary adding assembly, a self-adaptive locking piston assembly, and a telescopic transmission assembly. The rotary adding assembly is arranged on the grinding assembly, the self-adaptive locking piston assembly is slidably arranged in the rotary adding assembly, and the telescopic transmission assembly is arranged on the self-adaptive locking piston assembly.

[0014] By the sliding of the self-adaptive locking piston assembly, the single liquid inlet volume of the rotating type metering sleeve in each liquid inlet cycle can be changed, so as to achieve the technical effect that the amount of bauxite solid and the circulating caustic soda solution entering the pulp grinding cylinder are matched.

[0015] Preferably, the rotary adding component includes a fixed cylindrical sleeve and a rotating quantity control sleeve, the fixed cylindrical sleeve is fixedly connected to the top feed hopper, the top of the fixed cylindrical sleeve is provided with a liquid inlet pipe, the bottom of the fixed cylindrical sleeve is provided with a liquid discharge window, the liquid inlet pipe and the liquid discharge window are located at the same end of the fixed cylindrical sleeve, the other end of the fixed cylindrical sleeve is provided with a side circular hole, the rotating quantity control sleeve is rotatably arranged in the fixed cylindrical sleeve, one end of the rotating quantity control sleeve is provided with a liquid inlet and discharge groove, the other end of the rotating quantity control sleeve is provided with a through end joint, and the end joint is provided with two flower teeth evenly distributed in an annular manner.

[0016] Through the intermittent cooperation of the tooth part one and the tooth part two, at the initial stage of rotation of the rotary discharge box, the sliding top block will first be pushed outward by the rotation of the rotary drive rod to lock the position of the adaptive locking piston assembly, and then the rotary control sleeve will rotate together. By locking first and then rotating, the position of the volume control piston plate can be maintained unchanged during the flipping and unloading of the rotary discharge box, thereby avoiding the change of the liquid inlet amount in the rotary control sleeve caused by the tilting and flipping of the rotary discharge box.

[0017] As a further preferred embodiment of the present invention, the adaptive locking piston assembly includes a volume control piston plate, a sealing ring and a sliding top block. The volume control piston plate is slidably arranged in a rotating volume control sleeve. The sealing ring is arranged between the volume control piston plate and the rotating volume control sleeve. A circular blind hole is arranged in the middle position of the volume control piston plate. An annular protrusion is arranged on the volume control piston plate. Straight sliding grooves are evenly distributed in an annular manner on the annular protrusion. The sliding top block is snap-fitted and slidably arranged in the straight sliding groove.

[0018] On the one hand, the sealing ring has a sealing function, which can isolate the materials and transmission fluid on both sides. On the other hand, through the expansion of the sliding top block, it can also increase the extrusion pressure and friction between the inner wall of the rotary control sleeve and the sealing ring, thereby achieving the technical purpose of locking the volume control piston plate.

[0019] Preferably, the telescopic transmission assembly includes a rotating drive rod, a polygonal sleeve rod, a hinged base and a top support rod, the rotating drive rod consists of a hollow base and a polygonal rod, the rotating drive rod is fixedly connected to the through sleeve through the hollow base, the polygonal sleeve rod and the polygonal rod are slidably connected in a snap-fitting manner, a circular boss is provided at the bottom of the polygonal sleeve rod, the circular boss is rotatably arranged in a circular blind hole, the hinged base is evenly fixed to the polygonal sleeve rod in an annular manner, and the two ends of the top support rod are respectively hinged to the hinged base and the sliding top block.

[0020] Through the propping of the propping rod, the telescopic transmission assembly can automatically control the synchronous outward expansion and inward contraction of each group of sliding top blocks when the polygonal sleeve rod and the volume control piston plate rotate relative to each other, thereby realizing the locking and unlocking of the position of the volume control piston plate.

[0021] Further, the grinding assembly further includes a pulp grinding base and a grinding bearing. The pulp grinding cylinder is arranged on the pulp grinding base. Bearing seats are arranged at both ends of the pulp grinding cylinder, and the grinding bearing is snap-fitted in the bearing seats.

[0022] Preferably, the grinding drive assembly includes a grinding motor, a driving gear, a driven gear and a grinding main shaft. The driving gear is snap-fitted on the output shaft of the grinding motor. The grinding main shaft is snap-fitted in the grinding bearing. The driven gear is fixedly connected to one end of the grinding main shaft, and the driving gear and the driven gear are meshed for transmission.

[0023] There are many types of tools for stirring and grinding. When in use, they are installed on the grinding main shaft, and the operator can select according to actual needs.

[0024] The beneficial effects achieved by the present invention with the above structure are as follows:

[0025] (1) Through the material sensing mechanism, the mass of each bauxite fragment entering each time can be sensed, and according to the mass of the bauxite, the amount of liquid entering each time can be automatically adjusted, so as to realize the combined addition of the two raw materials, thereby controlling the content of solid ore particles in the pulp.

[0026] (2) Through the sinking of the carrier plate together with the sensing piston plate, the mass of the heavy object on the carrier plate at this time can be reflected, and the flow of the transmission liquid in the rotating discharge box and the rotating metering sleeve can be adjusted accordingly, thereby realizing the technical purpose of automatically controlling the position of the adaptive locking piston assembly.

[0027] (3) Through the sliding of the adaptive locking piston assembly, the single liquid inlet volume of the rotating metering sleeve in each liquid inlet cycle can be changed, so as to realize the technical effect that the amount of bauxite solid and the circulating caustic soda solution entering the pulp grinding cylinder match.

[0028] (4) Through the intermittent cooperation of the first spline part and the second spline part, at the initial stage of the rotation of the rotating discharge box, the sliding top block will first be driven by the rotation of the rotating drive rod to prop outward, realizing the position locking of the adaptive locking piston assembly, and then the rotating metering sleeve will be rotated together. By the way of locking first and then rotating, the position of the volume control piston plate can be maintained unchanged during the process of the rotating discharge box turning over and discharging, thereby avoiding the change of the liquid inlet volume in the rotating metering sleeve caused by the inclination and turning of the rotating discharge box.

[0029] (5) On the one hand, the sealing ring has a sealing function, which can isolate the materials and transmission fluid on both sides. On the other hand, through the expansion of the sliding top block, it can also increase the extrusion force and friction force between the inner wall of the rotary metering sleeve and the sealing ring, so as to achieve the technical purpose of locking the volume control piston plate.

[0030] (6) Through the propping of the propping rod, the telescopic transmission component can automatically control the synchronous outward expansion and inward contraction of each group of sliding top blocks when the polygonal sleeve rod and the volume control piston plate rotate relative to each other, and then realize the locking and unlocking of the position of the volume control piston plate. Brief Description of the Drawings

[0031] Figure 1 is a perspective view of a bauxite pulp grinding device proposed by the present invention;

[0032] Figure 2 is a front view of a bauxite pulp grinding device proposed by the present invention;

[0033] Figure 3 is a left view of a bauxite pulp grinding device proposed by the present invention;

[0034] Figure 4 is a top view of a bauxite pulp grinding device proposed by the present invention;

[0035] Figure 5 is Figure 2 a sectional view along the cutting line A-A in

[0036] Figure 6 is Figure 5 a sectional view along the cutting line B-B in

[0037] Figure 7 is an explosion schematic diagram of a bauxite pulp grinding device proposed by the present invention;

[0038] Figure 8 is a sectional view of the weight sensing component;

[0039] Figure 9 is Figure 6 a partial enlarged view of part Ⅰ in

[0040] Figure 10 is Figure 5 a partial enlarged view of part Ⅱ in

[0041] Figure 11 is Figure 5 a partial enlarged view of part Ⅲ in

[0042] Figure 12 is Figure 7 a partial enlarged view of part Ⅳ in

[0043] Among them, 1. Material sensing mechanism, 2. Liquid adding mechanism, 3. Pulp grinding mechanism, 4. Rotating drive assembly, 5. Weight sensing assembly, 6. Feeding motor, 7. Crossbeam type rotating bracket, 8. Rotating discharge box, 9. Carrying plate, 10. Tensile spring, 11. Central sealing round hole, 12. Blind sleeve, 13. Through sleeve, 14. First flower tooth part, 15. Rotating adding assembly, 16. Adaptive locking piston assembly, 17. Telescopic transmission assembly, 18. Fixed cylindrical sleeve, 19. Rotating quantity control sleeve, 20. Volume control piston plate, 21. Sealing ring, 22. Sliding top block, 23. Rotating drive rod, 24. Polygonal sleeve rod, 25. Hinge base, 26. Supporting rod, 27. Liquid inlet pipe, 28. Drain window, 29. Side round hole, 30. Liquid inlet and drain groove, 31. End joint, 32. Second flower tooth part, 33. Circular blind hole, 34. Annular protrusion, 35. Straight chute, 36. Hollow base, 37. Polygonal rod, 38. Circular boss, 39. Grinding assembly, 40. Grinding drive assembly, 41. Pulp grinding base, 42. Pulp grinding cylinder, 43. Grinding bearing, 44. Grinding motor, 45. Driving gear, 46. Driven gear, 47. Grinding main shaft, 48. Top feeding hopper, 49. Bearing seat, 50. Sensing piston plate, 51. Fixed baffle plate.

[0044] The attached drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the attached drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0047] Such as Figures 1 to 12As shown in the figure, the present invention provides a bauxite pulp grinding device, which includes a material sensing mechanism 1, a liquid adding mechanism 2 and a pulp grinding mechanism 3. The pulp grinding mechanism 3 includes a grinding assembly 39 and a grinding driving assembly 40. The grinding driving assembly 40 is rotationally connected to the grinding assembly 39. The material sensing mechanism 1 is arranged on the grinding assembly 39, and the liquid adding mechanism 2 is arranged on the grinding assembly 39.

[0048] The grinding assembly 39 further includes a pulp grinding base 41 and a grinding bearing 43. A pulp grinding cylinder 42 is arranged on the pulp grinding base 41. Bearing seats 49 are provided at both ends of the pulp grinding cylinder 42, and the grinding bearing 43 is snap-fitted in the bearing seats 49.

[0049] The grinding driving assembly 40 includes a grinding motor 44, a driving gear 45, a driven gear 46 and a grinding main shaft 47. The driving gear 45 is snap-fitted on the output shaft of the grinding motor 44. The grinding main shaft 47 is snap-fitted in the grinding bearing 43. The driven gear 46 is fixedly connected to one end of the grinding main shaft 47, and the driving gear 45 and the driven gear 46 are in meshing transmission.

[0050] There are many types of tools for stirring and grinding, which are installed on the grinding main shaft 47 during use, and the operator can select according to actual needs.

[0051] The material sensing mechanism 1 includes a rotation driving component 4 and a weight sensing component 5. The rotation driving component 4 is arranged on the grinding assembly 39, and the weight sensing component 5 is arranged on the rotation driving component 4.

[0052] Through the material sensing mechanism 1, the mass of each bauxite fragment entering each time can be sensed, and according to the mass of the bauxite, the amount of liquid entering each time can be automatically adjusted, so as to realize the combined addition of the two raw materials, thereby controlling the content of solid ore particles in the pulp.

[0053] The grinding assembly 39 includes a pulp grinding cylinder 42. A top feed hopper 48 is arranged on the pulp grinding cylinder 42. The rotation driving component 4 includes a feed motor 6 and a crossbeam type rotating bracket 7. The crossbeam type rotating bracket 7 is fixedly connected to the inside of the top feed hopper 48. The feed motor 6 is fixedly connected to one end of the top feed hopper 48. A central sealing round hole 11 is arranged on the crossbeam type rotating bracket 7.

[0054] The weight sensing assembly 5 includes a rotary discharge box 8, a load plate 9, a fixed baffle 51 and a tension spring 10. One end of the rotary discharge box 8 is provided with a blind sleeve 12, and the blind sleeve 12 is sleeved on the output shaft of the feeding motor 6. The output shaft of the feeding motor 6 is fixedly connected to the blind sleeve 12. The other end of the rotary discharge box 8 is provided with a through sleeve 13, and a first set of spline teeth 14 are evenly distributed in a ring on the through sleeve 13. The fixed baffle 51 is fixedly connected to the rotary discharge box 8. The bottom of the load plate 9 is provided with a sensing piston plate 50 connected by a connecting rod. The sensing piston plate 50 is engaged and slidably arranged in the rotary discharge box 8. The tension spring 10 is arranged between the sensing piston plate 50 and the fixed baffle 51.

[0055] Through the sinking of the load plate 9 together with the sensing piston plate 50, the mass of the heavy object on the load plate 9 at this time can be reflected, and the flow of the transmission fluid in the rotary discharge box 8 and the rotary metering sleeve 19 can be adjusted accordingly, thereby achieving the technical purpose of automatically controlling the position of the self - adaptive locking piston assembly 16.

[0056] The liquid adding mechanism 2 includes a rotary adding assembly 15, a self - adaptive locking piston assembly 16 and a telescopic transmission assembly 17. The rotary adding assembly 15 is arranged on the grinding assembly 39. The self - adaptive locking piston assembly 16 is slidably arranged in the rotary adding assembly 15. The telescopic transmission assembly 17 is arranged on the self - adaptive locking piston assembly 16.

[0057] Through the sliding of the self - adaptive locking piston assembly 16, the single - time liquid inlet volume of the rotary metering sleeve 19 in each liquid inlet cycle can be changed, so as to achieve the technical effect that the amounts of bauxite solids and circulating caustic soda solution entering the pulp grinding cylinder 42 are matched.

[0058] The rotary adding assembly 15 includes a fixed cylindrical sleeve 18 and a rotary metering sleeve 19. The fixed cylindrical sleeve 18 is fixedly connected to the top feeding hopper 48. The top of the fixed cylindrical sleeve 18 is provided with a liquid inlet pipe 27, and the bottom of the fixed cylindrical sleeve 18 is provided with a liquid discharge window 28. The liquid inlet pipe 27 and the liquid discharge window 28 are located at the same end of the fixed cylindrical sleeve 18. The other end of the fixed cylindrical sleeve 18 is provided with a side round hole 29. The rotary metering sleeve 19 is rotatably arranged in the fixed cylindrical sleeve 18. One end of the rotary metering sleeve 19 is provided with an inlet - outlet liquid groove 30, and the other end of the rotary metering sleeve 19 is provided with a through - hole end joint 31. The rotary metering sleeve 19 is rotatably arranged in the central sealing round hole 11 through the end joint 31. A second set of spline teeth 32 are evenly distributed in a ring on the end joint 31.

[0059] Through the intermittent cooperation of the first spline part 14 and the second spline part 32, at the initial stage of rotation of the rotating discharge box 8, the sliding top block 22 will be pushed outwards by the rotation drive of the rotation drive rod 23 first to lock the position of the self-adaptive locking piston assembly 16, and then it will rotate together with the rotary metering sleeve 19. By locking first and then rotating, the position of the volume control piston plate 20 can be maintained unchanged during the tipping and discharging process of the rotating discharge box 8, thus avoiding the change of the liquid inflow in the rotary metering sleeve 19 caused by the inclination and tipping of the rotating discharge box 8.

[0060] The self-adaptive locking piston assembly 16 includes a volume control piston plate 20, a sealing ring 21 and a sliding top block 22. The volume control piston plate 20 is slidably arranged in the rotary metering sleeve 19. The sealing ring 21 is arranged between the volume control piston plate 20 and the rotary metering sleeve 19. A circular blind hole 33 is arranged at the middle position of the volume control piston plate 20. An annular protrusion 34 is arranged on the volume control piston plate 20. Straight sliding grooves 35 are annularly and evenly arranged on the annular protrusion 34. The sliding top block 22 is snap-fitted and slidably arranged in the straight sliding grooves 35.

[0061] On the one hand, the sealing ring 21 has a sealing function and can isolate the materials and transmission fluid on both sides. On the other hand, through the expansion of the sliding top block 22, the extrusion force and friction force between the inner wall of the rotary metering sleeve 19 and the sealing ring 21 can also be increased, so as to achieve the technical purpose of locking the volume control piston plate 20.

[0062] The telescopic transmission assembly 17 includes a rotation drive rod 23, a polygonal sleeve rod 24, a hinge base 25 and a top support rod 26. The rotation drive rod 23 is composed of a hollow base 36 and a polygonal rod 37. The rotation drive rod 23 is fixedly connected to the through sleeve 13 through the hollow base 36. The polygonal sleeve rod 24 and the polygonal rod 37 are snap-fitted and slidably connected. A circular boss 38 is arranged at the bottom of the polygonal sleeve rod 24. The circular boss 38 is rotatably arranged in the circular blind hole 33. The hinge bases 25 are annularly and evenly fixedly connected to the polygonal sleeve rod 24. The two ends of the top support rod 26 are respectively hinged to the hinge base 25 and the sliding top block 22.

[0063] Through the top support of the top support rod 26, the telescopic transmission assembly 17 can automatically control the synchronous outward expansion and inward contraction of each group of sliding top blocks 22 when the polygonal sleeve rod 24 and the volume control piston plate 20 rotate relative to each other, and then realize the locking and unlocking of the position of the volume control piston plate 20.

[0064] During specific use, first, the user needs to start the grinding motor 44. The meshing transmission of the driving gear 45 and the driven gear 46 drives the grinding main shaft 47 to rotate. While rotating, the grinding main shaft 47 can drive the stirring device and the grinding device located on it to rotate, realizing the grinding of the bauxite inside the pulp grinding cylinder 42 and the full reaction and mixing between the solid and the liquid. During this process, the bauxite pulp that meets the grinding standard can be discharged through the discharge mechanism on the pulp grinding cylinder 42, and new raw materials are added from the top feed hopper 48. This continuous grinding production method is more efficient than the method of adding all the materials at once, grinding them all, and then discharging them all at once.

[0065] During the continuous grinding process, the feeding motor 6 can drive the rotating discharge box 8 to rotate; the specific steps of raw material replenishment are as follows:

[0066] First, some bauxite fragments are dropped onto the carrier plate 9 through an external feeding device. These bauxite fragments are roughly the same as the rated load capacity of the rotating discharge box 8, but their specific weight is unknown. At this time, since the liquid inlet and outlet groove 30 and the liquid inlet pipe 27 overlap, the liquid will enter the rotating metering sleeve 19 through the liquid inlet pipe 27.

[0067] The bauxite fragments press down the carrier plate 9. During this process, the tension spring 10 is stretched, and the elastic force generated by the tension spring 10 will also increase accordingly until it reaches a balanced state; when the carrier plate 9 is pressed down, the induction piston plate 50 also descends. At this time, the transmission liquid in the rotating metering sleeve 19 is sucked into the rotating discharge box 8. At the same time, the volume control piston plate 20 slides towards the direction of the rotating discharge box 8 under the action of negative pressure. At this time, the space for storing alkali liquid in the rotating metering sleeve 19 will increase; therefore, the more bauxite fragments there are in the rotating discharge box 8, the more alkali liquid is added each time when feeding.

[0068] Subsequently, the feeding motor 6 drives the rotating discharge box 8 to rotate half a week. Since the combination of the first spline part 14 and the second spline part 32 is not tight but has a gap, when the rotating discharge box 8 starts to rotate, the rotating metering sleeve 19 remains fixed due to the friction between itself and the fixed cylindrical sleeve 18. At this time, the rotating drive rod 23 drives the polygonal sleeve rod 24 to rotate together, so that a small relative rotation is generated between the polygonal sleeve rod 24 and the volume control piston plate 20. When the polygonal sleeve rod 24 rotates relative to the volume control piston plate 20, through the support of the top support rod 26, each group of sliding top blocks 22 can be synchronously extended.

[0069] Through the extrusion of the sliding top block 22, the pressure and frictional force between the sealing ring 21 and the inner wall of the rotary metering sleeve 19 are greatly increased, thereby locking the position of the volume control piston plate 20. After that, the rotary metering sleeve 19 will rotate together with the rotary discharging box 8; after rotating half a turn, the bauxite in the rotary discharging box 8 falls into the pulp grinding cylinder 42. When the liquid inlet and outlet groove 30 and the liquid discharge window 28 overlap, the liquid in the rotary metering sleeve 19 will also enter the pulp grinding cylinder 42.

[0070] After the feeding is completed, the feeding motor 6 rotates in the reverse direction, driving the rotary discharging box 8 and the rotary metering sleeve 19 to reset. Since the rotation direction of the feeding motor 6 is opposite at this time, when the rotary discharging box 8 starts to rotate at the beginning, it still drives the polygonal sleeve rod 24 to rotate through the rotary drive rod 23. After the adaptive locking piston assembly 16 is unlocked, it drives the rotary metering sleeve 19 to rotate. Therefore, when the rotary discharging box 8 and the rotary metering sleeve 19 are reset, the volume control piston plate 20 returns to the state where it can slide freely.

[0071] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0072] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A bauxite slurry grinding device, comprising a slurry grinding mechanism, the slurry grinding mechanism comprising a grinding assembly and a grinding drive assembly, the grinding drive assembly and the grinding assembly are rotatably connected, characterized in that: It also includes a material sensing mechanism and a liquid adding mechanism, wherein the material sensing mechanism is arranged on the grinding component, and the liquid adding mechanism is arranged on the grinding component; The material sensing mechanism includes a rotary drive component and a weight sensing component, wherein the rotary drive component is arranged on the grinding component, and the weight sensing component is arranged on the rotary drive component; The liquid adding mechanism comprises a rotary adding component, an adaptive locking piston component and a telescopic transmission component, wherein the rotary adding component is arranged on the grinding component, the adaptive locking piston component is slidably arranged in the rotary adding component, and the telescopic transmission component is arranged on the adaptive locking piston component; The rotary drive assembly includes a feed motor; the weight sensing assembly includes a rotary discharge box, a loading plate, a fixed baffle and a tension spring; a blind sleeve is provided at one end of the rotary discharge box, the blind sleeve is sleeved on the output shaft of the feed motor, the output shaft of the feed motor and the blind sleeve are fixedly connected; a through sleeve is provided at the other end of the rotary discharge box, a flower tooth portion is evenly distributed in an annular manner on the through sleeve, the fixed baffle is fixedly connected to the rotary discharge box, an induction piston plate connected by a connecting rod is provided at the bottom of the loading plate, the induction piston plate is clamped and slidably arranged in the rotary discharge box, and a tension spring is arranged between the induction piston plate and the fixed baffle; The rotary adding assembly includes a fixed cylindrical sleeve and a rotating control sleeve. The fixed cylindrical sleeve is fixedly connected to the top feed hopper. The top of the fixed cylindrical sleeve is provided with a liquid inlet pipe, the bottom of the fixed cylindrical sleeve is provided with a liquid discharge window, the other end of the fixed cylindrical sleeve is provided with a side circular hole, the rotating control sleeve is rotatably arranged in the fixed cylindrical sleeve, one end of the rotating control sleeve is provided with a liquid inlet and discharge groove, and the other end of the rotating control sleeve is provided with a through end joint, and the end joint is evenly distributed with flower teeth two in an annular manner; The adaptive locking piston assembly includes a volume control piston plate, a sealing ring and a sliding top block. The volume control piston plate is slidably arranged in a rotating volume control sleeve. The sealing ring is arranged between the volume control piston plate and the rotating volume control sleeve. A circular blind hole is arranged in the middle of the volume control piston plate. An annular protrusion is arranged on the volume control piston plate. Straight sliding grooves are evenly distributed on the annular protrusion. The sliding top block is engaged and slidably arranged in the straight sliding groove. The telescopic transmission assembly locks and unlocks the position of the volume control piston plate by controlling the synchronous expansion and contraction of each group of sliding top blocks.

2. The bauxite slurry grinding device according to claim 1, characterized in that: The grinding assembly includes a slurry grinding cylinder, which is provided with a top feed hopper. The rotary drive assembly also includes a beam-type rotating bracket, which is fixedly connected to the inside of the top feed hopper. The feed motor is fixedly connected to one end of the top feed hopper. The beam-type rotating bracket is provided with a central sealing circular hole.

3. The bauxite slurry grinding device according to claim 2, characterized in that: The liquid inlet pipe and the liquid discharge window are located at the same end of the fixed cylindrical sleeve.

4. The bauxite slurry grinding device according to claim 3, characterized in that: The telescopic transmission assembly includes a rotating drive rod, a polygonal sleeve rod, a hinged base and a top support rod. The rotating drive rod is composed of a hollow base and a polygonal rod. The rotating drive rod is fixedly connected to the through sleeve through the hollow base. The polygonal sleeve rod and the polygonal rod are snap-fitted and slidably connected. A circular boss is provided at the bottom of the polygonal sleeve rod, and the circular boss is rotatably arranged in a circular blind hole. The hinged base is evenly fixed to the polygonal sleeve rod in an annular shape, and the two ends of the top support rod are respectively hinged to the hinged base and the sliding top block.

5. The bauxite slurry grinding device according to claim 4, characterized in that: The grinding assembly also includes a slurry grinding base and a grinding bearing. The slurry grinding cylinder is arranged on the slurry grinding base. Bearing seats are arranged at both ends of the slurry grinding cylinder. The grinding bearing is clamped in the bearing seat.

6. The bauxite slurry grinding device according to claim 5, characterized in that: The grinding drive assembly includes a grinding motor, a driving gear, a driven gear and a grinding spindle. The driving gear is clamped on the output shaft of the grinding motor, the grinding spindle is clamped in the grinding bearing, the driven gear is fixed to one end of the grinding spindle, and the driving gear and the driven gear are meshed for transmission.

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