A vertical grinding machine for aluminum hydroxide micropowder processing and grinding method thereof

Abstract

The present invention discloses a vertical grinding machine for processing aluminum hydroxide micropowder and a grinding method thereof, and relates to the technical field of grinding equipment. It comprises a crushing box and a grinding box, and a connecting box is fixedly arranged between the crushing box and the grinding box, and a plurality of first crushing reamers and a plurality of second crushing reamers are arranged on the front and rear sides of the crushing box in an alternating manner, and a large-diameter grinding cylinder and a plurality of small-diameter grinding cylinders distributed in a circular manner are arranged in the grinding box, and the outer surface of the large-diameter grinding cylinder is in contact with the outer surfaces of the plurality of small-diameter grinding cylinders. The present invention grinds aluminum hydroxide by relative rotation of the first crushing reamers and the second crushing reamers and reciprocating translation of the second crushing reamers, and by reciprocating opposite grinding of the large-diameter grinding cylinder and the small-diameter grinding cylinder, which can improve the grinding efficiency, grinding quality and enhance the dispersibility, and is overall conducive to the efficient production of high-quality aluminum hydroxide micropowder products.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, and in particular to a vertical grinding machine for processing aluminum hydroxide micropowder and a grinding method thereof. Background Art

[0002] Aluminum hydroxide is an important industrial raw material, widely used in coatings, pigments, medicine, water treatment and other fields. As the manufacturing industry's requirements for product refinement continue to increase, the demand for aluminum hydroxide powder is also increasing. At present, the preparation of aluminum hydroxide powder mainly relies on two methods: dry grinding and wet grinding.

[0003] Dry grinding has high efficiency, but there are problems of dust pollution and easy agglomeration of powders; wet grinding can effectively control dust, but the production efficiency is relatively low, and it requires a lot of water resources and needs to be dehydrated later. In addition, the existing vertical grinding machine is mainly suitable for grinding large particles, and its grinding efficiency is insufficient for micro powder processing. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a vertical grinder for processing aluminum hydroxide micropowder and a grinding method thereof.

[0005] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0006] The present invention provides a vertical grinding machine for processing aluminum hydroxide micropowder, comprising a crushing box and a grinding box, wherein the crushing box and the grinding box are placed side by side, and a connecting box that is distributed through the crushing box and the grinding box is fixedly arranged between the crushing box and the grinding box, a feed hopper that is distributed through the crushing box is fixedly arranged on the top surface of the crushing box, and a discharge port that is distributed through the grinding box is fixedly arranged on the bottom surface of the grinding box;

[0007] The crushing box is in an elliptical box shape, and the front and rear sides of the crushing box are respectively provided with a second crushing shaft and a first crushing shaft distributed in parallel, a middle section of the first crushing shaft is fixed with a plurality of evenly distributed first crushing reamers, and a middle section of the second crushing shaft is fixed with a plurality of evenly distributed second crushing reamers, and the plurality of first crushing reamers and the plurality of second crushing reamers are alternately distributed;

[0008] The grinding box is in the shape of a circular box, and a plurality of evenly distributed semicircular protrusions are fixed on the front and rear side walls of the grinding box, and the plurality of semicircular protrusions form a plurality of semicircular cavities in the grinding box. A transversely distributed first grinding shaft is provided in the middle of the grinding box, and a concentrically fixed large-diameter grinding cylinder is sleeved on the first grinding shaft. A transversely distributed second grinding shaft is provided in each of the semicircular cavities, and a concentrically fixed small-diameter grinding cylinder is sleeved on each of the second grinding shafts, and the outer surface of the large-diameter grinding cylinder is in contact with the outer surfaces of the plurality of small-diameter grinding cylinders.

[0009] Preferably, a pair of symmetrically distributed elliptical scrapers are provided on both sides of the crushing box, and the two ends of the first crushing shaft slide through the pair of elliptical scrapers, and the two ends of the first crushing shaft rotate through the two side walls of the crushing box and extend to the outside of the crushing box;

[0010] The two ends of the second crushing shaft slide through a pair of elliptical scrapers, and the two ends of the second crushing shaft slide through the two side walls of the crushing box and extend to the outside of the crushing box. Two pairs of baffle rings are fixed on both sides of the second crushing shaft, and each pair of baffle rings is rotatably engaged with the two sides of the corresponding elliptical scraper.

[0011] Preferably, the right end of the first crushing shaft is sleeved with a first gear fixedly connected concentrically, the middle part of the right side of the crushing box is rotatably inserted with a first connecting shaft, the middle part of the first connecting shaft is sleeved with a second gear fixedly connected concentrically, the second gear is meshed with the first gear, and the right end of the first connecting shaft is sleeved with a worm gear fixedly connected concentrically;

[0012] A rectangular frame is fixedly provided on the top of the right side of the crushing box, a servo motor with the output end facing downward is installed inside the rectangular frame, a driving shaft is fixedly provided on the end of the motor shaft of the servo motor, a concentrically fixed hollow worm is sleeved on the top end of the driving shaft, and the hollow worm is meshingly connected with the worm wheel.

[0013] Preferably, the left end of the first crushing shaft is sleeved with a concentrically fixed third gear, the middle part of the left side of the crushing box is rotatably inserted with a third connecting shaft and a second connecting shaft, the left end of the second connecting shaft is sleeved with a concentrically fixed fourth gear, the left end of the third connecting shaft is sleeved with a concentrically fixed widening gear, and the left end of the second crushing shaft is sleeved with a concentrically fixed fifth gear;

[0014] The third gear is meshed and connected with the fourth gear, the fourth gear is meshed and connected with the widening gear, the widening gear is meshed and connected with the fifth gear, and the teeth of the fifth gear are slidably connected with the teeth of the widening gear.

[0015] Preferably, a fixed plate is fixedly provided at the middle and lower part of the right side of the crushing box, a fourth connecting shaft is rotatably inserted and distributed through the middle part of the right side of the fixing plate, a concentrically fixed driven pulley is sleeved on the bottom end of the fourth connecting shaft, a concentrically fixed driving pulley is sleeved on the middle and upper part of the driving shaft, and the driving pulley is synchronously connected with the driven pulley through a linkage belt;

[0016] The top end of the fourth connecting shaft is sleeved with a concentrically fixed sixth gear, and a pair of fifth connecting shafts are rotatably inserted at the two corners on the right side of the fixed plate. The middle part of each of the fifth connecting shafts is sleeved with a concentrically fixed seventh gear, and the sixth gear is located between the pair of seventh gears, and the sixth gear is meshed with the pair of seventh gears.

[0017] Preferably, the top end of each of the fifth connecting shafts is sleeved with a concentrically fixed notched gear, a vertically distributed rectangular connecting plate is fixedly provided on the right side of the top surface of the fixed plate, a rectangular sliding hole is opened at the top end of the rectangular connecting plate, a double-sided rack is slidably inserted into the inside of the rectangular sliding hole, the double-sided rack is located between a pair of notched gears, and the pair of notched gears are alternately meshed and connected with the double-sided rack;

[0018] A hollow sleeve is fixedly arranged at the left end of the double-sided rack, and a circular rotating block is fixedly arranged at the right end of the second crushing shaft. The circular rotating block is rotatably engaged in the hollow sleeve.

[0019] Preferably, the two ends of the first grinding shaft rotate through the two side walls of the grinding box and extend to the outside of the grinding box, the left end of the first grinding shaft is sleeved with a concentrically fixed large-diameter gear plate, and the two ends of each of the second grinding shafts rotate through the two side walls of the grinding box and extend to the outside of the grinding box, the left end of each of the second grinding shafts is sleeved with a concentrically fixed eighth gear, and the large-diameter gear plate is meshed and connected with a plurality of eighth gears in sequence.

[0020] Preferably, the right end portion of the first grinding shaft is sleeved with a pair of symmetrically distributed driven bevel gears, a fixed ear seat is fixedly provided at the middle and upper part of the right side surface of the grinding box, the bottom end portion of the driving shaft rotates through the outer end portion of the fixed ear seat and extends between the pair of driven bevel gears, and the bottom end portion of the driving shaft is sleeved with a concentrically fixed notched bevel gear, and the notched bevel gear is alternately meshed and connected with a pair of driven bevel gears.

[0021] Preferably, a transversely distributed rectangular sieve plate is fixedly provided in the top port of the connecting box, and a plurality of evenly distributed large-diameter sieve holes are provided on the rectangular sieve plate; a transversely distributed arc-shaped sieve plate is fixedly provided in the top port of the discharge port, and a plurality of evenly distributed small-diameter sieve holes are provided on the arc-shaped sieve plate; four evenly distributed supporting legs are fixedly provided on both sides of the bottom surface of the grinding box.

[0022] The present invention also provides a grinding method of a vertical grinding machine for processing aluminum hydroxide micropowder, which adopts the vertical grinding machine for processing aluminum hydroxide micropowder, comprising the following steps:

[0023] Step 1: Under the driving action of the servo motor, the motor shaft of the servo motor drives the driving shaft, the hollow worm, the driving pulley, and the notched bevel gear to rotate synchronously, the hollow worm meshes to drive the worm wheel, the first connecting shaft, and the second gear to rotate synchronously, and the second gear meshes to drive the first gear, the first crushing shaft, the first crushing cutters, and the third gear to rotate;

[0024] Step 2: The third gear meshes to drive the fourth gear and the second connecting shaft to rotate in the opposite direction; the fourth gear meshes to drive the widening gear and the third connecting shaft to rotate; the widening gear meshes to drive the fifth gear, the second crushing shaft, a plurality of second crushing reamers, two pairs of baffle rings, and the circular rotating block to rotate in the opposite direction; and the plurality of first crushing reamers and the plurality of second crushing reamers rotate relatively;

[0025] Step 3: The driving pulley drives the driven pulley, the fourth connecting shaft, and the sixth gear to rotate synchronously through the linkage belt. The meshing of the sixth gear drives a pair of seventh gears, a pair of fifth connecting shafts, and a pair of notched gears to rotate. Under the meshing action of the pair of notched gears alternately and the double-sided rack, the double-sided rack and the hollow sleeve are driven to slide back and forth along the rectangular sliding hole, and the circular rotating block, the second crushing shaft, a plurality of second crushing reamers, two pairs of baffle rings, and a pair of elliptical scrapers are synchronously driven to reciprocate and translate. The fifth gear slides back and forth along the widened gear and remains in a meshing state.

[0026] Step 4: Under the meshing action of the notched bevel gear alternately and a pair of driven bevel gears, the first grinding shaft, the large diameter grinding cylinder, and the large diameter gear plate are driven to reciprocate, and the large diameter gear plate is meshed to drive the eighth gears, the second grinding shafts, and the small diameter grinding cylinders to reciprocate, and the outer surface of the large diameter grinding cylinder and the outer surfaces of the small diameter grinding cylinders are reciprocated and oppositely ground;

[0027] Step 5: Put the aluminum hydroxide block into the crushing box through the feed hopper, and crush the aluminum hydroxide block into particles through the cooperation of a plurality of first crushing reamers and a plurality of second crushing reamers. Then, a pair of elliptical scrapers are used to push the aluminum hydroxide particles on both sides of the crushing box to the top of the rectangular sieve plate, and the aluminum hydroxide particles fall into the grinding box through the large-diameter sieve holes through the connecting box;

[0028] Through the mutual cooperation of a large-diameter grinding cylinder and several small-diameter grinding cylinders, the aluminum hydroxide particles are fully ground into dust. The dusty aluminum hydroxide powder flows along the outer surface of the large-diameter grinding cylinder through the small-diameter sieve holes on the arc-shaped sieve plate and falls into the discharge port, and then the aluminum hydroxide powder is collected and processed.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. In the present invention, the relative rotation of the first pulverizing reamer and the reciprocating translation design of the second pulverizing reamer can flexibly adjust the pulverizing method according to the actual situation of aluminum hydroxide, and can be suitable for grinding block aluminum hydroxide of different sizes and hardness, with better adaptability;

[0031] When encountering larger pieces or aluminum hydroxide with higher hardness, the relative movement between the reamers can increase the shear force, and the reciprocating translation can better distribute the aluminum hydroxide between the reamers, which can not only ensure that each part can be fully crushed, reduce the problems of equipment blockage or incomplete crushing due to material differences, but also improve the grinding efficiency and quality;

[0032] 2. In the present invention, the large-diameter grinding cylinder and the small-diameter grinding cylinder cooperate with each other to make the grinding process more uniform, and the aluminum hydroxide particles at different positions can be fully ground, avoiding the situation where some parts are over-ground while other parts are not fully ground;

[0033] During the reciprocating grinding process between the large diameter grinding cylinder and the small diameter grinding cylinder, the aluminum hydroxide particles are constantly turned over and redistributed between the large diameter grinding cylinder and the small diameter grinding cylinder, which helps to disperse the aluminum hydroxide particles and prevent the aluminum hydroxide particles from agglomerating together. This uniform grinding can ensure that a finer and more uniform aluminum hydroxide powder is obtained.

[0034] 3. In the present invention, the entire grinding process is carried out in the crushing box and the grinding box, which can avoid dust pollution;

[0035] In summary, the present invention can improve the grinding efficiency and grinding quality of aluminum hydroxide and enhance the adaptability of equipment by the relative rotation of the first crushing reamer and the second crushing reamer and the reciprocating translation of the second crushing reamer to crush aluminum hydroxide; the reciprocating opposite grinding of the large diameter grinding cylinder and the small diameter grinding cylinder can improve the grinding efficiency, grinding quality and enhance the dispersibility, and the grinding in a closed environment can avoid dust pollution, which is conducive to the efficient output of high-quality aluminum hydroxide micropowder products as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0039] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention;

[0040] Figure 4 It is a cross-sectional schematic diagram of a crushing box and a grinding box in the present invention;

[0041] Figure 5It is a schematic diagram of the structure of the first crushing shaft and the second crushing shaft in the present invention;

[0042] Figure 6 for Figure 5 Explosion diagram of

[0043] Figure 7 It is a schematic diagram of the structure of a large-diameter grinding cylinder and several small-diameter grinding cylinders in the present invention;

[0044] The serial numbers in the figure are: 1, crushing box; 2, feeding hopper; 3, connecting box; 4, grinding box; 5, discharge port; 6, rectangular screen plate; 7, arc screen plate; 8, first crushing shaft; 9, first crushing reamer; 10, second crushing shaft; 11, second crushing reamer; 12, retaining ring; 13, elliptical scraper; 14, first gear; 15, first connecting shaft; 16, second gear; 17, worm gear; 18, third gear; 19, second connecting shaft; 20, fourth gear; 21, third connecting shaft; 22, widening gear; 23, fifth gear; 24, fixing plate; 25, rectangular shaped connecting plate; 26, double-sided rack; 27, hollow sleeve; 28, circular rotating block; 29, rectangular frame; 30, servo motor; 31, drive shaft; 32, hollow worm; 33, fixed ear seat; 34, notched bevel gear; 35, fourth connecting shaft; 36, sixth gear; 37, linkage belt; 38, fifth connecting shaft; 39, seventh gear; 40, notched gear; 41, first grinding shaft; 42, driven bevel gear; 43, large diameter grinding cylinder; 44, second grinding shaft; 45, small diameter grinding cylinder; 46, large diameter gear plate; 47, eighth gear. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] Embodiment: This embodiment provides a vertical grinding machine for processing aluminum hydroxide micropowder, see Figure 1-7 , comprising a crushing box 1 and a grinding box 4, the crushing box 1 and the grinding box 4 are placed side by side, and a connecting box 3 is fixedly provided between the crushing box 1 and the grinding box 4, a feed hopper 2 is fixedly provided on the top surface of the crushing box 1, and a discharge port 5 is fixedly provided on the bottom surface of the grinding box 4;

[0047] The crushing box 1 is in the shape of an elliptical box, and the front and rear sides of the crushing box 1 are respectively provided with a second crushing shaft 10 and a first crushing shaft 8 which are distributed in parallel, and the middle section of the first crushing shaft 8 is fixed with a plurality of evenly distributed first crushing reamers 9, and the middle section of the second crushing shaft 10 is fixed with a plurality of evenly distributed second crushing reamers 11, and the plurality of first crushing reamers 9 and the plurality of second crushing reamers 11 are alternately distributed, and the plurality of first crushing reamers 9 and the plurality of second crushing reamers 11 can rotate relatively, and through the mutual cooperation of the plurality of first crushing reamers 9 and the plurality of second crushing reamers 11, the blocky aluminum hydroxide can be crushed into particles;

[0048] The grinding box 4 is in the shape of a circular box, and the front and rear side walls of the grinding box 4 are fixed with a number of evenly distributed semicircular protrusions, and the several semicircular protrusions form a number of semicircular cavities in the grinding box 4, and a transversely distributed first grinding shaft 41 is provided in the middle of the grinding box 4, and a concentrically fixed large-diameter grinding cylinder 43 is sleeved on the first grinding shaft 41, and a transversely distributed second grinding shaft 44 is provided in each semicircular cavity, and a concentrically fixed small-diameter grinding cylinder 45 is sleeved on each second grinding shaft 44, and the outer surface of the large-diameter grinding cylinder 43 contacts the outer surfaces of the several small-diameter grinding cylinders 45, and the outer surface of the large-diameter grinding cylinder 43 and the outer surfaces of the several small-diameter grinding cylinders 45 are reciprocally ground in the opposite direction, and the aluminum hydroxide particles can be fully ground into dust through the mutual cooperation of the large-diameter grinding cylinder 43 and the several small-diameter grinding cylinders 45.

[0049] In the specific implementation process, Figure 5 and Figure 6 As shown, a pair of symmetrically distributed elliptical scrapers 13 are provided on both sides of the crushing box 1, and the two ends of the first crushing shaft 8 slide through the pair of elliptical scrapers 13, and the two ends of the first crushing shaft 8 rotate to penetrate the two side walls of the crushing box 1 and extend to the outside of the crushing box 1;

[0050] The two ends of the second crushing shaft 10 slide through a pair of elliptical scrapers 13, and the two ends of the second crushing shaft 10 slide through the two side walls of the crushing box 1 and extend to the outside of the crushing box 1. Two pairs of retaining rings 12 are fixed on both sides of the second crushing shaft 10, and each pair of retaining rings 12 is rotatably engaged with the two sides of the corresponding elliptical scraper 13.

[0051] The right end of the first crushing shaft 8 is sleeved with a concentrically fixed first gear 14, and the middle part of the right side of the crushing box 1 is rotatably inserted with a first connecting shaft 15, and the middle part of the first connecting shaft 15 is sleeved with a concentrically fixed second gear 16, which is meshed and connected with the first gear 14. The second gear 16 can mesh and drive the first gear 14, the first crushing shaft 8, and the first crushing cutters 9 to rotate, and the right end of the first connecting shaft 15 is sleeved with a concentrically fixed worm gear 17;

[0052] A rectangular frame 29 is fixedly provided on the top of the right side of the crushing box 1, and a servo motor 30 with the output end facing downward is installed inside the rectangular frame 29. A driving shaft 31 is fixedly provided on the motor shaft end of the servo motor 30, and a concentrically fixed hollow worm 32 is sleeved on the top end of the driving shaft 31. The hollow worm 32 is meshed and connected with the worm wheel 17. The motor shaft of the servo motor 30 can drive the driving shaft 31 and the hollow worm 32 to rotate synchronously, and the hollow worm 32 can mesh and drive the worm wheel 17, the first connecting shaft 15, and the second gear 16 to rotate synchronously;

[0053] The left end of the first crushing shaft 8 is sleeved with a concentrically fixed third gear 18, the middle part of the left side of the crushing box 1 is rotatably inserted with a third connecting shaft 21 and a second connecting shaft 19, the left end of the second connecting shaft 19 is sleeved with a concentrically fixed fourth gear 20, the left end of the third connecting shaft 21 is sleeved with a concentrically fixed widening gear 22, and the left end of the second crushing shaft 10 is sleeved with a concentrically fixed fifth gear 23;

[0054] The third gear 18 is meshed and connected with the fourth gear 20, and the third gear 18 can mesh and drive the fourth gear 20 and the second connecting shaft 19 to rotate in the opposite direction. The fourth gear 20 is meshed and connected with the widening gear 22, and the fourth gear 20 can mesh and drive the widening gear 22 and the third connecting shaft 21 to rotate. The widening gear 22 is meshed and connected with the fifth gear 23, and the widening gear 22 can mesh and drive the fifth gear 23, the second crushing shaft 10, the plurality of second crushing reamers 11, and the two pairs of baffle rings 12 to rotate in the opposite direction, and the teeth of the fifth gear 23 are slidably connected with the teeth of the widening gear 22, and the fifth gear 23 can slide back and forth along the widening gear 22 and maintain a meshing state;

[0055] When the first crushing reamer 9 and the second crushing reamer 11 rotate relative to each other, they act like two grinding tools that cooperate with each other, and can apply shear forces to the blocky aluminum hydroxide from different directions. This relative rotation can quickly divide the large block of aluminum hydroxide into smaller pieces.

[0056] At the same time, the second crushing reamer 11 can also reciprocate, which further increases the dimension of crushing. It can make the aluminum hydroxide constantly change its position and force angle during the process of being cut by the reamer, so that the parts that may not have been fully crushed can also be effectively processed, thereby making the entire crushing process more efficient and being able to crush a large amount of blocky aluminum hydroxide into particles in a shorter time.

[0057] In the specific implementation process, Figure 6As shown, a fixed plate 24 is fixedly arranged at the middle and lower part of the right side of the crushing box 1, a fourth connecting shaft 35 is rotatably inserted and distributed through the middle part of the right side of the fixing plate 24, a concentrically fixed driven pulley is sleeved on the bottom end of the fourth connecting shaft 35, a concentrically fixed driving pulley is sleeved on the middle and upper part of the driving shaft 31, the driving pulley is synchronously connected with the driven pulley through a linkage belt 37, and the driving pulley can drive the driven pulley and the fourth connecting shaft 35 to rotate synchronously through the linkage belt 37;

[0058] The top end of the fourth connecting shaft 35 is sleeved with a concentrically fixed sixth gear 36, and a pair of fifth connecting shafts 38 are rotatably inserted at the two corners of the right side of the fixing plate 24. The middle part of each fifth connecting shaft 38 is sleeved with a concentrically fixed seventh gear 39, and the sixth gear 36 is located between the pair of seventh gears 39, and the sixth gear 36 is meshed and connected with the pair of seventh gears 39, and the sixth gear 36 can mesh and drive the pair of seventh gears 39 and the pair of fifth connecting shafts 38 to rotate;

[0059] The top end of each fifth connecting shaft 38 is sleeved with a concentrically fixed notched gear 40, and the sixth gear 36 can mesh and drive the pair of notched gears 40 to rotate. A vertically distributed rectangular connecting plate 25 is fixed to the right side of the top surface of the fixed plate 24, and a rectangular sliding hole is opened at the top end of the rectangular connecting plate 25. A double-sided rack 26 is inserted and inserted into the inner part of the rectangular sliding hole. The double-sided rack 26 is located between the pair of notched gears 40, and the pair of notched gears 40 are alternately meshed and connected with the double-sided rack 26. Under the meshing action of the pair of notched gears 40 alternately with the double-sided rack 26, the double-sided rack 26 and the hollow sleeve 27 can be driven to slide back and forth along the rectangular sliding hole;

[0060] A hollow sleeve 27 is fixedly disposed at the left end of the double-sided rack 26, and a circular rotating block 28 is fixedly disposed at the right end of the second crushing shaft 10. The circular rotating block 28 is rotatably engaged in the hollow sleeve 27, and the circular rotating block 28, the second crushing shaft 10, a plurality of second crushing cutters 11, two pairs of baffle rings 12 and a pair of elliptical scrapers 13 can reciprocate.

[0061] Due to the cooperation between the first pulverizing reamer 9 and the second pulverizing reamer 11, the aluminum hydroxide can be pulverized more evenly, and the combined effect of relative rotation and reciprocating translation can avoid the situation where some aluminum hydroxide is over-pulverized while some aluminum hydroxide is still in large blocks; this uniform pulverizing effect can obtain aluminum hydroxide particles with relatively uniform particle size, which is very beneficial for subsequent industrial production processes that require high-precision particle size control and can ensure the stability of product quality.

[0062] In the specific implementation process, Figure 6 and Figure 7As shown, the two ends of the first grinding shaft 41 rotate through the two side walls of the grinding box 4 and extend to the outside of the grinding box 4, the left end of the first grinding shaft 41 is sleeved with a concentrically fixed large-diameter gear plate 46, the two ends of each second grinding shaft 44 rotate through the two side walls of the grinding box 4 and extend to the outside of the grinding box 4, the left end of each second grinding shaft 44 is sleeved with a concentrically fixed eighth gear 47, and the large-diameter gear plate 46 is meshed and connected with a plurality of eighth gears 47 in sequence, and the large-diameter gear plate 46 can mesh and drive a plurality of eighth gears 47, the second grinding shaft 44 and the small-diameter grinding cylinder 45 to reciprocate;

[0063] The right end of the first grinding shaft 41 is sleeved with a pair of symmetrically distributed driven bevel gears 42, and a fixed ear seat 33 is fixedly provided at the middle and upper part of the right side of the grinding box 4. The bottom end of the driving shaft 31 rotates through the outer end of the fixed ear seat 33 and extends between the pair of driven bevel gears 42, and the bottom end of the driving shaft 31 is sleeved with a concentric fixed notch bevel gear 34, which is alternately meshed with the pair of driven bevel gears 42. Under the meshing action of the notch bevel gear 34 alternately with the pair of driven bevel gears 42, the first grinding shaft 41, the large diameter grinding cylinder 43, and the large diameter gear plate 46 can be driven to reciprocate;

[0064] The outer surfaces of the large diameter grinding cylinder 43 and the small diameter grinding cylinder 45 are ground in reciprocating opposite directions. This movement can cause the aluminum hydroxide particles to be subjected to friction from two opposite directions during the grinding process. The aluminum hydroxide particles are repeatedly kneaded and squeezed between the large diameter grinding cylinder 43 and the small diameter grinding cylinder 45. Compared with unidirectional grinding, this two-way opposite grinding can make the particles be refined faster.

[0065] Furthermore, in this embodiment, a laterally distributed rectangular sieve plate 6 is fixedly provided in the top port of the connecting box 3, and a plurality of evenly distributed large-diameter sieve holes are opened on the rectangular sieve plate 6, and aluminum hydroxide particles can fall into the grinding box 4 through the large-diameter sieve holes through the connecting box 3, and a laterally distributed arc-shaped sieve plate 7 is fixedly provided in the top port of the discharge port 5, and a plurality of evenly distributed small-diameter sieve holes are opened on the arc-shaped sieve plate 7, and aluminum hydroxide powder can fall into the discharge port 5 through the small-diameter sieve holes on the arc-shaped sieve plate 7 along the outer surface of the large-diameter grinding cylinder 43, and four evenly distributed supporting legs are fixedly provided on both sides of the bottom surface of the grinding box 4.

[0066] Specifically, the working principle and operation method of the present invention are as follows:

[0067] Step 1: Under the driving action of the servo motor 30, the motor shaft of the servo motor 30 drives the driving shaft 31, the hollow worm 32, the driving pulley, and the notched bevel gear 34 to rotate synchronously, the hollow worm 32 meshes to drive the worm wheel 17, the first connecting shaft 15, and the second gear 16 to rotate synchronously, and the second gear 16 meshes to drive the first gear 14, the first crushing shaft 8, the first crushing cutters 9, and the third gear 18 to rotate;

[0068] Step 2: The third gear 18 is engaged to drive the fourth gear 20 and the second connecting shaft 19 to rotate in the opposite direction; the fourth gear 20 is engaged to drive the widening gear 22 and the third connecting shaft 21 to rotate; the widening gear 22 is engaged to drive the fifth gear 23, the second crushing shaft 10, the plurality of second crushing reamers 11, the two pairs of baffle rings 12, and the circular rotating block 28 to rotate in the opposite direction; the plurality of first crushing reamers 9 and the plurality of second crushing reamers 11 rotate relatively;

[0069] Step 3: The driving pulley drives the driven pulley, the fourth connecting shaft 35, and the sixth gear 36 to rotate synchronously through the linkage belt 37. The sixth gear 36 engages to drive a pair of seventh gears 39, a pair of fifth connecting shafts 38, and a pair of notched gears 40 to rotate. Under the meshing action of the pair of notched gears 40 alternately and the double-sided rack 26, the double-sided rack 26 and the hollow sleeve 27 are driven to slide back and forth along the rectangular sliding hole, and the circular rotating block 28, the second crushing shaft 10, a plurality of second crushing reamers 11, two pairs of baffle rings 12, and a pair of elliptical scrapers 13 are synchronously driven to reciprocate and translate, and the fifth gear 23 slides back and forth along the widened gear 22 and remains in a meshing state;

[0070] Step 4: Under the meshing action of the notched bevel gear 34 and the pair of driven bevel gears 42 alternately, the first grinding shaft 41, the large diameter grinding cylinder 43, and the large diameter gear plate 46 are driven to reciprocate, and the large diameter gear plate 46 meshes to drive the plurality of eighth gears 47, the second grinding shaft 44, and the small diameter grinding cylinder 45 to reciprocate, and the outer surface of the large diameter grinding cylinder 43 and the outer surfaces of the plurality of small diameter grinding cylinders 45 are reciprocally ground in opposite directions;

[0071] Step 5: Put the aluminum hydroxide block into the crushing box 1 through the feed hopper 2, and crush the aluminum hydroxide block into particles through the cooperation of a plurality of first crushing reamers 9 and a plurality of second crushing reamers 11. Then, a pair of elliptical scrapers 13 push the aluminum hydroxide particles on both sides of the crushing box 1 to the top of the rectangular sieve plate 6, and the aluminum hydroxide particles fall into the grinding box 4 through the large-diameter sieve holes through the connecting box 3;

[0072] Through the mutual cooperation of the large-diameter grinding cylinder 43 and a plurality of small-diameter grinding cylinders 45, the aluminum hydroxide particles are fully ground into dust, and the dusty aluminum hydroxide powder falls along the outer surface of the large-diameter grinding cylinder 43 through the small-diameter sieve holes on the arc-shaped sieve plate 7 to the discharge port 5, and then the aluminum hydroxide powder is collected and processed.

[0073] The present invention grinds aluminum hydroxide by relative rotation of the first crushing reamer 9 and the second crushing reamer 11 and reciprocating translation of the second crushing reamer 9, which can improve the grinding efficiency and grinding quality of aluminum hydroxide and enhance the adaptability of the equipment; the reciprocating opposite grinding of the large-diameter grinding cylinder and the small-diameter grinding cylinder can improve the grinding efficiency, grinding quality and enhance the dispersibility, and the grinding in a closed environment can avoid dust pollution, which is conducive to the efficient output of high-quality aluminum hydroxide micropowder products as a whole.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical grinding machine for processing aluminum hydroxide micropowder, characterized in that: The invention comprises a crushing box (1) and a grinding box (4), wherein the crushing box (1) and the grinding box (4) are arranged side by side in an upper and lower manner, and a connecting box (3) is fixedly provided between the crushing box (1) and the grinding box (4), a feeding hopper (2) is fixedly provided on the top surface of the crushing box (1), a discharge port (5) is fixedly provided on the bottom surface of the grinding box (4), and a transversely distributed rectangular sieve plate (6) is fixedly provided in the top port of the connecting box (3); The crushing box (1) is in the shape of an elliptical box, and a second crushing shaft (10) and a first crushing shaft (8) are respectively arranged on the front and rear sides of the crushing box (1), and a plurality of evenly distributed first crushing reamers (9) are fixedly arranged in the middle section of the first crushing shaft (8), and a plurality of evenly distributed second crushing reamers (11) are fixedly arranged in the middle section of the second crushing shaft (10), and the plurality of first crushing reamers (9) and the plurality of second crushing reamers (11) are alternately arranged; The grinding box (4) is in the shape of a circular box, and a plurality of evenly distributed semicircular protrusions are fixedly provided on the front and rear side walls of the grinding box (4), and the plurality of semicircular protrusions form a plurality of semicircular cavities in the grinding box (4); a first grinding shaft (41) distributed transversely is provided in the middle of the grinding box (4), and a large-diameter grinding cylinder (43) is sleeved on the first grinding shaft (41) and fixedly connected concentrically; a second grinding shaft (44) distributed transversely is provided in each of the semicircular cavities, and a small-diameter grinding cylinder (45) is sleeved on each of the second grinding shafts (44), and the outer surface of the large-diameter grinding cylinder (43) contacts the outer surfaces of the plurality of small-diameter grinding cylinders (45); A pair of symmetrically distributed elliptical scrapers (13) are provided on both sides of the pulverizing box (1), and the two ends of the first pulverizing shaft (8) slide through the pair of elliptical scrapers (13), and the two ends of the first pulverizing shaft (8) rotate to penetrate the two side walls of the pulverizing box (1) and extend to the outside of the pulverizing box (1); The two ends of the second pulverizing shaft (10) slide through a pair of elliptical scrapers (13), and the two ends of the second pulverizing shaft (10) slide through the two side walls of the pulverizing box (1) and extend to the outside of the pulverizing box (1), two pairs of retaining rings (12) are fixedly provided on both sides of the second pulverizing shaft (10), and each pair of retaining rings (12) is rotatably engaged with the two sides of the corresponding elliptical scraper (13); The second crushing shaft can perform reciprocating translational motion along its axial direction while rotating, thereby driving a pair of elliptical scrapers to perform reciprocating translational motion.

2. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 1, characterized in that: The right end of the first crushing shaft (8) is sleeved with a first gear (14) which is fixedly connected concentrically; a first connecting shaft (15) is rotatably inserted in the middle of the right side of the crushing box (1); a second gear (16) which is fixedly connected concentrically is sleeved in the middle of the first connecting shaft (15); the second gear (16) is meshingly connected with the first gear (14); and a worm gear (17) which is fixedly connected concentrically is sleeved on the right end of the first connecting shaft (15); A rectangular frame (29) is fixedly provided on the top of the right side of the crushing box (1), a servo motor (30) with its output end facing downward is installed inside the rectangular frame (29), a drive shaft (31) is fixedly provided on the end of the motor shaft of the servo motor (30), a concentrically fixed hollow worm (32) is sleeved on the top end of the drive shaft (31), and the hollow worm (32) is meshingly connected to the worm wheel (17).

3. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 2, characterized in that: The left end of the first crushing shaft (8) is sleeved with a concentrically fixed third gear (18); the middle of the left side of the crushing box (1) is rotatably inserted with a third connecting shaft (21) and a second connecting shaft (19); the left end of the second connecting shaft (19) is sleeved with a concentrically fixed fourth gear (20); the left end of the third connecting shaft (21) is sleeved with a concentrically fixed widening gear (22); and the left end of the second crushing shaft (10) is sleeved with a concentrically fixed fifth gear (23); The third gear (18) is meshedly connected with the fourth gear (20), the fourth gear (20) is meshedly connected with the widening gear (22), the widening gear (22) is meshedly connected with the fifth gear (23), and the teeth of the fifth gear (23) are slidably connected with the teeth of the widening gear (22).

4. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 3, characterized in that: A fixed plate (24) is fixedly provided at the middle and lower part of the right side of the crushing box (1); a fourth connecting shaft (35) is rotatably inserted and distributed through the middle part of the right side of the fixing plate (24); a concentrically fixed driven pulley is sleeved on the bottom end of the fourth connecting shaft (35); a concentrically fixed driving pulley is sleeved on the middle and upper part of the driving shaft (31); the driving pulley is synchronously connected to the driven pulley through a linkage belt (37); A concentrically fixed sixth gear (36) is sleeved on the top end of the fourth connecting shaft (35); a pair of fifth connecting shafts (38) are rotatably inserted at two corners on the right side of the fixing plate (24); a concentrically fixed seventh gear (39) is sleeved on the middle of each of the fifth connecting shafts (38); the sixth gear (36) is located between the pair of seventh gears (39), and the sixth gear (36) is meshingly connected with the pair of seventh gears (39).

5. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 4, characterized in that: The top end of each of the fifth connecting shafts (38) is sleeved with a concentrically fixed notched gear (40); a vertically distributed rectangular connecting plate (25) is fixedly provided on the right side of the top surface of the fixed plate (24); a rectangular sliding hole is provided at the top end of the rectangular connecting plate (25); a double-sided rack (26) is slidably inserted into the interior of the rectangular sliding hole and is distributed therethrough; the double-sided rack (26) is located between a pair of notched gears (40), and the pair of notched gears (40) are alternately meshed and connected with the double-sided rack (26); A hollow sleeve (27) is fixedly provided at the left end of the double-sided rack (26), and a circular rotating block (28) is fixedly provided at the right end of the second crushing shaft (10), wherein the circular rotating block (28) is rotatably engaged in the hollow sleeve (27).

6. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 5, characterized in that: The two ends of the first grinding shaft (41) rotate through the two side walls of the grinding box (4) and extend to the outside of the grinding box (4); the left end of the first grinding shaft (41) is sleeved with a coaxially fixed large-diameter gear plate (46); the two ends of each second grinding shaft (44) rotate through the two side walls of the grinding box (4) and extend to the outside of the grinding box (4); the left end of each second grinding shaft (44) is sleeved with a coaxially fixed eighth gear (47), and the large-diameter gear plate (46) is meshed with a plurality of eighth gears (47) in sequence.

7. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 6, characterized in that: The right end of the first grinding shaft (41) is sleeved with a pair of symmetrically distributed driven bevel gears (42); a fixed ear seat (33) is fixedly provided at the middle and upper part of the right side surface of the grinding box (4); the bottom end of the driving shaft (31) rotates through the outer end of the fixed ear seat (33) and extends between the pair of driven bevel gears (42); and the bottom end of the driving shaft (31) is sleeved with a concentrically fixed notched bevel gear (34); the notched bevel gear (34) is alternately meshed with the pair of driven bevel gears (42).

8. A vertical grinding machine for processing aluminum hydroxide micropowder according to claim 7, characterized in that: The rectangular sieve plate (6) is provided with a plurality of evenly distributed large-diameter sieve holes, a transversely distributed arc-shaped sieve plate (7) is fixedly disposed in the top end of the discharge port (5), and the arc-shaped sieve plate (7) is provided with a plurality of evenly distributed small-diameter sieve holes, and four evenly distributed supporting legs are fixedly disposed on both sides of the bottom surface of the grinding box (4).

9. The grinding method of a vertical grinding machine for processing aluminum hydroxide micropowder according to claim 8, characterized in that: The following steps are involved: Step 1: under the driving action of the servo motor (30), the motor shaft of the servo motor (30) drives the driving shaft (31), the hollow worm (32), the driving pulley, and the notched bevel gear (34) to rotate synchronously, the hollow worm (32) meshes with the worm wheel (17), the first connecting shaft (15), and the second gear (16) to rotate synchronously, and the second gear (16) meshes with the first gear (14), the first crushing shaft (8), the plurality of first crushing cutters (9), and the third gear (18) to rotate; Step 2: the third gear (18) meshes to drive the fourth gear (20) and the second connecting shaft (19) to rotate in the opposite direction; the fourth gear (20) meshes to drive the widening gear (22) and the third connecting shaft (21) to rotate; the widening gear (22) meshes to drive the fifth gear (23), the second crushing shaft (10), the plurality of second crushing cutters (11), the two pairs of retaining rings (12), and the circular rotating block (28) to rotate in the opposite direction; and the plurality of first crushing cutters (9) and the plurality of second crushing cutters (11) rotate relative to each other; Step 3: The driving pulley drives the driven pulley, the fourth connecting shaft (35), and the sixth gear (36) to rotate synchronously through the linkage belt (37); the sixth gear (36) meshes and drives a pair of seventh gears (39), a pair of fifth connecting shafts (38), and a pair of notched gears (40) to rotate; under the action of the pair of notched gears (40) alternately meshing with the double-sided rack (26), the double-sided rack (26) and the hollow sleeve (27) are driven to slide back and forth along the rectangular sliding hole, synchronously driving the circular rotating block (28), the second crushing shaft (10), a plurality of second crushing cutters (11), two pairs of retaining rings (12), and a pair of elliptical scrapers (13) to reciprocate and translate; the fifth gear (23) slides back and forth along the widened gear (22) and remains in a meshing state; Step 4: Under the meshing action of the notched bevel gear (34) and the pair of driven bevel gears (42), the first grinding shaft (41), the large diameter grinding cylinder (43), and the large diameter gear plate (46) are driven to rotate back and forth, and the large diameter gear plate (46) is meshed to drive the plurality of eighth gears (47), the second grinding shaft (44), and the small diameter grinding cylinder (45) to rotate back and forth, and the outer surface of the large diameter grinding cylinder (43) and the outer surfaces of the plurality of small diameter grinding cylinders (45) are reciprocally ground in opposite directions; Step 5, the aluminum hydroxide block is placed into the crushing box (1) through the feed hopper (2), and the aluminum hydroxide block is crushed into particles through the interaction of a plurality of first crushing reamers (9) and a plurality of second crushing reamers (11). The aluminum hydroxide particles on both sides of the crushing box (1) are then pushed to the top of the rectangular sieve plate (6) by a pair of elliptical scrapers (13), and the aluminum hydroxide particles fall into the grinding box (4) along the large-diameter sieve holes through the connecting box (3); Through the interaction of the large-diameter grinding cylinder (43) and a plurality of small-diameter grinding cylinders (45), the aluminum hydroxide particles are fully ground into a dusty state, and the dusty aluminum hydroxide powder flows along the outer surface of the large-diameter grinding cylinder (43) through the small-diameter sieve holes on the arc-shaped sieve plate (7) and falls into the discharge port (5), and the aluminum hydroxide powder is then collected and processed.

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