Powder collecting mechanism of environment-friendly activated aluminum oxide grinding equipment

Abstract

The invention discloses a powder collecting mechanism of environment-friendly activated aluminum oxide grinding equipment, and relates to the field of activated aluminum oxide production, the powder collecting mechanism comprises a mounting frame, a driving motor and an equipment main body, one end of the equipment main body is provided with a feeding port, one end of the equipment main body is provided with a feeding bin, and the inner wall of the feeding bin is provided with a first air outlet plate; and a second air outlet plate is mounted on the inner wall of the feeding hole. By arranging the feeding bin, the first air outlet plate and the second air outlet plate, dust floats upwards and floats towards the feeding port, the second air outlet plate forms a first airflow wall at the feeding port to reduce the amount of dust flowing towards the outer end of the feeding port, and the first air outlet plate forms a second airflow wall at the upper end of the feeding bin to reduce the amount of dust flowing towards the outer end of the equipment body again; the situation that powder diffuses along with air and pollutes the surrounding environment is avoided, and the situation that workers inhale too much dust to cause lung discomfort or other occupational diseases is avoided.

Description

Technical Field

[0001] The invention relates to the field of activated alumina production, in particular to a powder collecting mechanism of environmentally friendly activated alumina grinding equipment. Background Art

[0002] Activated alumina is a material with a high specific surface area and excellent adsorption properties. It is often used in catalyst carriers, adsorbents, desiccants and other fields. It is a modified form of alumina that has been specially treated to make it highly active and able to play an important role in chemical reactions.

[0003] The grinding production process of activated alumina mainly involves crushing and refining the activated alumina raw powder by physical methods to obtain the particle size and distribution that meet the specific application requirements. Grinding is the process of refining the raw powder by mechanical means, usually using equipment such as ball mills, air flow mills or vibration mills. The goal of the grinding process is to reduce the average size of the particles and increase their specific surface area and uniformity. This process is crucial to ensuring the adsorption, catalytic and other properties of activated alumina.

[0004] In dry grinding, activated alumina is irregular in shape, and the conveying device pours the activated alumina into the grinding equipment through the feed port. After grinding, the activated alumina will form very fine particles. These particles themselves are very light and can be easily carried away by the air flow. When the grinder rotates at high speed, the particles are subject to friction and impact force, and are prone to flying. The inertia of fine particles is small, so they are more easily carried away by the air to form dust powder. Since there is no liquid medium (such as water or oil) to suppress the generation of dust, the powder overflows from the feed port into the air, and the powder will diffuse with the air, causing pollution to the surrounding environment. Inhalation of alumina powder may affect the respiratory system of workers, and long-term exposure may lead to chronic respiratory diseases or other health problems. Although alumina itself is less toxic to the human body, inhalation of too much dust may cause lung discomfort or other occupational diseases. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a powder collection mechanism for an environmentally friendly activated alumina grinding device to solve the technical problems in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a powder collection mechanism of an environmentally friendly activated alumina grinding device, comprising a mounting frame, a drive motor, and a device body, wherein the drive motor is mounted on the upper end of the mounting frame, and the device body is mounted on one end of the mounting frame;

[0007] A feed port is provided at one end of the equipment body, a feed bin is installed at one end of the equipment body, and the feed bin is connected to the feed port, a first air outlet plate is installed on the inner wall of the feed bin, and the air outlet of the first air outlet plate faces the feed port, a second air outlet plate is installed on the inner wall of the feed port, and the air outlet of the second air outlet plate faces the inside of the equipment body, a bellows is installed on the upper end of the equipment body, a first air outlet pipe and a second air outlet pipe are respectively provided between the bellows and the first air outlet plate and the second air outlet plate, a discharge port is provided at the bottom end of the equipment body, a discharge pipe is installed on the discharge port, and the discharge pipe is externally connected to a powder recovery device;

[0008] A driving shaft is installed at the output end of the driving motor, a transmission shaft is movably installed inside the equipment body, and the transmission shaft extends to one end of the outer wall of the equipment body and is connected to the driving shaft with a toothed synchronous belt, and a grinding component is installed on the outer wall of the transmission shaft.

[0009] By adopting the above technical solution, the problem of powder overflowing from the feed port into the air is solved. Multiple sets of grinding knives perform preliminary crushing operations on the activated alumina. After some of the activated alumina is crushed, dust is generated. The dust floats upward and floats toward the feed port. The second air outlet plate forms a first air flow wall at the feed port, reducing the amount of dust flowing to the outer end of the feed port. The first air outlet plate forms a second air flow wall at the upper end of the feed bin, further reducing the amount of dust flowing to the outer end of the equipment body, avoiding the powder from diffusing with the air and causing pollution to the surrounding environment, and avoiding lung discomfort or other occupational diseases caused by excessive dust inhalation by workers. At the same time, the loss of activated alumina grinding operations is reduced, and the airflow discharged from the first air outlet plate and the second air outlet plate assists the activated alumina to slide into the interior of the equipment body, avoiding the accumulation of activated alumina inside the feed bin.

[0010] The present invention is further configured as follows: the grinding assembly includes a first mounting column, a feed plate, a second mounting column, a blanking seat and fine grinding balls; the outer wall of the transmission shaft is installed with the first mounting column, the feed plate, the second mounting column and the blanking seat, and the bottom end of the transmission shaft is installed with fine grinding balls; the outer wall of the first mounting column is installed with multiple groups of grinding sheets; the feed plate is spirally arranged; the outer wall of the second mounting column is installed with multiple groups of grinding blocks; the upper end of the second mounting column is inclined; and the inner wall of the equipment body is movably installed with multiple groups of fixed blocks.

[0011] Preferably, the transmission shaft rotates, thereby driving the transmission gear, the partition plate, the first mounting column, the feed plate, the second mounting column, the blanking seat and the fine grinding balls to rotate, thereby driving multiple groups of grinding sheets and multiple groups of grinding blocks to rotate, the multiple groups of grinding sheets preliminarily crush the activated alumina, the multiple groups of grinding blocks rotate, and the multiple groups of grinding blocks and the multiple groups of fixed blocks cooperate to perform preliminary grinding operations on the activated alumina.

[0012] The present invention is further configured such that the upper end of the second mounting column, the upper end of the blanking seat and the upper end of the fine grinding ball are all inclined, an auxiliary block is provided between the blanking seat and the equipment body, an auxiliary block is provided between the fine grinding ball and the equipment body, and both ends of the two groups of auxiliary blocks are inclined.

[0013] Preferably, after the activated alumina falls to the upper end of the second mounting column, the upper end of the second mounting column is tilted, and the activated alumina falls between multiple groups of grinding blocks and multiple groups of fixed blocks. The preliminarily ground activated alumina falls to the upper end of the blanking seat. The upper end of the blanking seat is tilted, and a certain distance is provided between the outer wall of the blanking seat and the inside of the equipment body. The activated alumina falls to the upper end of the fine grinding ball through the distance between the outer wall of the blanking seat and the inner wall of the equipment body. The upper end of the fine grinding ball is tilted, and a certain distance is provided between the outer wall of the fine grinding ball and the inner wall of the equipment body. The activated alumina enters the gap between the fine grinding ball and the equipment body, and the fine grinding ball cooperates with the inner wall of the equipment body to grind the activated alumina for the second time. When the activated alumina passes through the gap between the upper end of the blanking seat and the inner wall of the equipment body and the gap between the upper end of the fine grinding ball and the equipment body, part of the activated alumina is stuck in the above gap because its size is similar to the above gap, and the two groups of auxiliary blocks will push the activated alumina stuck in the above gap, so that the activated alumina passes through the above gap.

[0014] The present invention is further configured such that a transmission gear is installed on the outer wall of the transmission shaft, a connecting shaft is installed inside the bellows, and a fan is installed on the outer wall of the connecting shaft, the connecting shaft extends into the interior of the equipment body and is installed at one end with a connecting gear, and the connecting gear is meshed and connected with the transmission gear, and the diameter of the transmission gear is larger than the diameter of the connecting gear.

[0015] Preferably, the transmission shaft rotates, driving the transmission gear to rotate, the transmission gear is meshed with the linkage gear, the linkage gear rotates, and the transmission gear diameter is larger than the linkage gear diameter, so the transmission gear speed is greater than the linkage gear speed, thereby driving the linkage shaft to rotate, and then driving the fan to rotate.

[0016] The present invention is further configured such that a partition plate is installed on the outer wall of the transmission shaft, and the outer wall of the upper end of the partition plate is movably connected to the inner wall of the equipment body.

[0017] Preferably, the provision of the partition plate prevents powder from adhering to the inner wall of the upper end of the device body.

[0018] The present invention is further configured such that two groups of limiting columns are movably mounted on the upper end of the device body, and the two groups of limiting columns extend into one end of the inner wall of the device body and are connected to the transmission shaft with a toothed synchronous belt.

[0019] Preferably, the transmission shaft rotates, driving the two sets of limiting columns to rotate.

[0020] The present invention is further configured such that the outer walls of the two groups of limit columns are provided with reciprocating thread grooves, the outer walls of the two groups of limit columns are movably installed with limit plates, and the inner wall protrusions of the two groups of limit plates are movably connected to the two groups of reciprocating thread grooves.

[0021] Preferably, the two groups of limiting columns rotate to drive the two groups of limiting plates to move.

[0022] The present invention is further configured such that two groups of fixing columns are installed on the upper end of the equipment body, and the inner walls of one end of the two groups of limiting plates are movably connected to the outer walls of the two groups of fixing columns respectively.

[0023] Preferably, the two groups of limiting columns rotate, and the two groups of fixing columns limit the two groups of limiting plates respectively, and the two groups of limiting plates move.

[0024] The present invention is further configured such that two groups of movable columns are movably installed on the upper end of the equipment body, and one end of the two groups of movable columns extending into the interior of the equipment body are movably connected to the partition plate, and movable plates are installed on the upper ends of the two groups of movable columns, and the other ends of the two groups of limit plates are movably connected to the two groups of movable plates respectively.

[0025] Preferably, when the two groups of limit plates move downward, the other ends of the two groups of limit plates push the two groups of movable plates from top to bottom respectively, and the two groups of movable plates move downward, thereby driving the two groups of movable columns to move downward, and one end of the two groups of movable columns knocks on the partition plate.

[0026] The present invention is further configured such that two groups of springs are installed at the bottom ends of the two groups of movable plates, and one end of the multiple groups of springs are connected to the upper end of the device body.

[0027] Preferably, the two groups of limit plates move upward, and the multiple groups of springs push the two groups of movable plates to reset, thereby driving the two groups of movable columns to reset.

[0028] In summary, the present invention mainly has the following beneficial effects:

[0029] 1. The present invention solves the problem of powder overflowing from the feed port into the air by providing a feed bin, a first air outlet plate and a second air outlet plate. Multiple groups of grinding knives perform preliminary crushing operations on the activated alumina. After some activated alumina is crushed, dust is generated. The dust floats upward and floats toward the feed port. The second air outlet plate forms a first air flow wall at the feed port to reduce the amount of dust flowing to the outer end of the feed port. The first air outlet plate forms a second air flow wall at the upper end of the feed bin to further reduce the amount of dust flowing to the outer end of the equipment body, thereby avoiding the powder from diffusing with the air and causing pollution to the surrounding environment, and avoiding lung discomfort or other occupational diseases caused by excessive dust inhalation by workers. At the same time, the loss of activated alumina grinding operation is reduced, and the airflow discharged from the first air outlet plate and the second air outlet plate assists the activated alumina to slide into the interior of the equipment body, thereby avoiding the accumulation of activated alumina inside the feed bin.

[0030] 2. The present invention is provided with a partition plate and a movable column. After some activated alumina floats upward in a dust state, some powder will adhere to the bottom end of the partition plate. A toothed synchronous belt is provided between the transmission shaft and the two sets of limit columns, and the two sets of limit columns rotate, and the inner wall protrusions of the two sets of limit plates are movably connected to the reciprocating thread grooves on the outer walls of the two sets of limit columns. Therefore, the two sets of limit plates move back and forth. When the two sets of limit plates move downward, the other ends of the two sets of limit plates push the two sets of movable plates from top to bottom respectively. The two sets of movable plates move downward, thereby driving the two sets of movable columns to move downward. One end of the two sets of movable columns knocks on the partition plate, so that the powder adhered to the outer wall of the partition plate falls into the inside of the equipment body, and then the two sets of limit plates move upward, and multiple sets of springs push the two sets of movable plates to reset respectively, thereby driving the two sets of movable columns to reset, further reducing the loss of the activated alumina grinding operation and improving the production capacity of the movable alumina grinding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the mounting frame in the present invention;

[0032] Figure 2 Schematic diagram of the main body of the device in the present invention;

[0033] Figure 3 It is a side sectional view of the main body of the device in the present invention;

[0034] Figure 4 for Figure 3 A magnified view of point A in the figure;

[0035] Figure 5 Schematic diagram of the fixed block in the present invention;

[0036] Figure 6 Schematic diagram of the internal structure of the device body in the present invention;

[0037] Figure 7Schematic diagram of the bellows in the present invention;

[0038] Figure 8 Schematic diagram of the linkage shaft in the present invention;

[0039] Figure 9 Schematic diagram of the limiting axis in the present invention.

[0040] Description of reference numerals:

[0041] 1. Mounting frame; 2. Driving motor; 3. Driving shaft; 4. Equipment body; 5. Feed bin; 6. First air outlet plate; 7. Feed port; 8. Second air outlet plate; 9. Discharge port; 10. Discharge pipe; 11. Transmission shaft; 12. Transmission gear; 13. Partition plate; 14. First mounting column; 15. Grinding disc; 16. Feed plate; 17. Second mounting column; 18. Grinding block; 19. Blanking seat; 20. Grinding ball; 21. Fixed block; 22. Auxiliary block; 23. Bellows; 24. Linking shaft; 25. Linking gear; 26. First air outlet pipe; 27. Second air outlet pipe; 28. Limiting column; 29. Limiting plate; 30. Fixed column; 31. Movable plate; 32. Movable column; 33. Spring. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0043] The following describes an embodiment of the present invention based on its overall structure.

[0044] An environmentally friendly activated alumina grinding equipment powder collection mechanism, please refer to Figure 1 - Figure 9 , including a mounting frame 1, a driving motor 2 and a device body 4, the driving motor 2 is installed on the upper end of the mounting frame 1, and the device body 4 is installed at one end of the mounting frame 1;

[0045] A feed port 7 is provided at one end of the equipment body 4, a feed bin 5 is installed at one end of the equipment body 4, and the feed bin 5 is connected to the feed port 7, a first air outlet plate 6 is installed on the inner wall of the feed bin 5, and the air outlet of the first air outlet plate 6 faces the feed port 7, a second air outlet plate 8 is installed on the inner wall of the feed port 7, and the air outlet of the second air outlet plate 8 faces the inside of the equipment body 4, a bellows 23 is installed on the upper end of the equipment body 4, and a first air outlet pipe 26 and a second air outlet pipe 27 are respectively provided between the bellows 23 and the first air outlet plate 6 and the second air outlet plate 8, and the air flow passes through the first air outlet pipe 2 6 and the second air outlet pipe 27 enter the first air outlet plate 6 and the second air outlet plate 8 respectively. The first air outlet plate 6 discharges the airflow toward the feed port 7, and the second air outlet plate 8 discharges the airflow toward the interior of the equipment body 4. A discharge port 9 is provided at the bottom end of the equipment body 4. A discharge port 9 is installed with a discharge pipe 10, and the discharge pipe 10 is externally connected to a powder recovery device. The ground activated alumina falls to the discharge port 9, and then the activated alumina powder enters the interior of the discharge pipe 10 through the discharge port 9. One end of the discharge pipe 10 is externally connected to a powder recovery device, and the activated alumina enters the interior of the powder recovery device;

[0046] A driving shaft 3 is installed at the output end of the driving motor 2, and a transmission shaft 11 is movably installed inside the equipment body 4. The transmission shaft 11 extends to one end of the outer wall of the equipment body 4 and is connected to the driving shaft 3 with a toothed synchronous belt. A grinding assembly is installed on the outer wall of the transmission shaft 11. When the driving shaft 3 rotates, it drives the transmission shaft 11 to rotate, thereby driving the grinding assembly to rotate.

[0047] See also Figure 3 - Figure 6 The grinding assembly includes a first mounting column 14, a feed plate 16, a second mounting column 17, a blanking seat 19 and a fine grinding ball 20. The outer wall of the transmission shaft 11 is equipped with the first mounting column 14, the feed plate 16, the second mounting column 17 and the blanking seat 19, and the bottom end of the transmission shaft 11 is equipped with a fine grinding ball 20. The outer wall of the first mounting column 14 is equipped with multiple groups of grinding sheets 15, the feed plate 16 is arranged in a spiral shape, the outer wall of the second mounting column 17 is equipped with multiple groups of grinding blocks 18, and the upper end of the second mounting column 17 is arranged at an angle. The main body of the equipment 4 There are multiple sets of fixed blocks 21 movably installed on the inner wall, and the transmission shaft 11 rotates, thereby driving the transmission gear 12, the partition plate 13, the first mounting column 14, the feed plate 16, the second mounting column 17, the blanking seat 19 and the fine grinding ball 20 to rotate, and then driving the multiple sets of grinding sheets 15 and the multiple sets of grinding blocks 18 to rotate. The multiple sets of grinding sheets 15 initially crush the activated alumina, and the multiple sets of grinding blocks 18 rotate, and the multiple sets of grinding blocks 18 and the multiple sets of fixed blocks 21 cooperate to perform preliminary grinding operations on the activated alumina.

[0048] See also Figure 3 - Figure 6The upper end of the second mounting column 17, the upper end of the blanking seat 19 and the upper end of the fine grinding ball 20 are all inclined. An auxiliary block 22 is provided between the blanking seat 19 and the equipment body 4. An auxiliary block 22 is provided between the fine grinding ball 20 and the equipment body 4, and both ends of the two groups of auxiliary blocks 22 are inclined. After the activated alumina falls to the upper end of the second mounting column 17, the upper end of the second mounting column 17 is inclined, and the activated alumina falls between the multiple groups of grinding blocks 18 and the multiple groups of fixed blocks 21. The preliminarily ground activated alumina falls to the upper end of the blanking seat 19. The upper end of the blanking seat 19 is inclined, and a certain distance is provided between the outer wall of the blanking seat 19 and the inside of the equipment body 4. The activated alumina is connected to the equipment through the outer wall of the blanking seat 19. The spacing of the inner wall of the main body 4 falls to the upper end 20 of the fine grinding ball. The upper end of the fine grinding ball 20 is an inclined device, and there is a certain distance between the outer wall of the fine grinding ball 20 and the inner wall of the device main body 4. The activated alumina enters the gap between the fine grinding ball 20 and the device main body 4. The fine grinding ball 20 cooperates with the inner wall of the device main body 4 to perform secondary grinding of the activated alumina. When the activated alumina passes through the gap between the upper end of the blanking seat 19 and the inner wall of the device main body 4 and the gap between the upper end of the fine grinding ball 20 and the device main body 4, part of the activated alumina is stuck in the above gap because its size is similar to the above gap size, and the two sets of auxiliary blocks 22 will push the activated alumina stuck in the above gap, so that the activated alumina passes through the above gap.

[0049] See also Figure 3 - Figure 8 A transmission gear 12 is installed on the outer wall of the transmission shaft 11, a linkage shaft 24 is installed inside the bellows 23, and a fan is installed on the outer wall of the linkage shaft 24. The linkage shaft 24 extends into the interior of the equipment body 4 and is equipped with a linkage gear 25 at one end, and the linkage gear 25 is meshed with the transmission gear 12. The diameter of the transmission gear 12 is larger than the diameter of the linkage gear 25. The transmission shaft 11 rotates, driving the transmission gear 12 to rotate. The transmission gear 12 is meshed with the linkage gear 25, and the linkage gear 25 rotates. The diameter of the transmission gear 12 is larger than the diameter of the linkage gear 25. Therefore, the speed of the transmission gear 12 is greater than the speed of the linkage gear 25, thereby driving the linkage shaft 24 to rotate, and then driving the fan to rotate.

[0050] See also Figure 3 - Figure 6 A partition plate 13 is installed on the outer wall of the transmission shaft 11, and the outer wall of the upper end of the partition plate 13 is movably connected to the inner wall of the equipment body 4. The setting of the partition plate 13 prevents powder from adhering to the inner wall of the upper end of the equipment body 4.

[0051] See also Figure 3 - Figure 9 Two groups of limiting columns 28 are movably installed on the upper end of the equipment body 4, and the two groups of limiting columns 28 extend into the inner wall of the equipment body 4 and are connected to the transmission shaft 11 with a toothed synchronous belt. The transmission shaft 11 rotates, driving the two groups of limiting columns 28 to rotate.

[0052] See also Figure 3 - Figure 9 The outer walls of the two groups of limit columns 28 are provided with reciprocating thread grooves, and the outer walls of the two groups of limit columns 28 are movably installed with limit plates 29, and the inner wall protrusions of the two groups of limit plates 29 are movably connected to the two groups of reciprocating thread grooves. The two groups of limit columns 28 rotate, driving the two groups of limit plates 29 to move.

[0053] See also Figure 3 - Figure 9 Two groups of fixed columns 30 are installed on the upper end of the equipment body 4, and the inner walls of one end of the two groups of limiting plates 29 are movably connected to the outer walls of the two groups of fixed columns 30 respectively. The two groups of limiting columns 28 rotate, and the two groups of fixed columns 30 limit the two groups of limiting plates 29 respectively, and the two groups of limiting plates 29 move.

[0054] See also Figure 3 - Figure 9 Two groups of movable columns 32 are movably installed on the upper end of the equipment body 4, and one end of the two groups of movable columns 32 extending into the interior of the equipment body 4 is movably connected to the partition plate 13. The upper ends of the two groups of movable columns 32 are installed with movable plates 31, and the other ends of the two groups of limiting plates 29 are movably connected to the two groups of movable plates 31 respectively. When the two groups of limiting plates 29 move downward, the other ends of the two groups of limiting plates 29 push the two groups of movable plates 31 from top to bottom respectively, and the two groups of movable plates 31 move downward, thereby driving the two groups of movable columns 32 to move downward, and one end of the two groups of movable columns 32 knocks on the partition plate 13.

[0055] See also Figure 3 - Figure 9 Two sets of springs 33 are installed at the bottom of the two sets of movable plates 31, and one end of the multiple sets of springs 33 is connected to the upper end of the equipment body 4. The two sets of limit plates 29 move upward, and the multiple sets of springs 33 push the two sets of movable plates 31 to reset, thereby driving the two sets of movable columns 32 to reset.

[0056] The working principle of the present invention is as follows: when a worker uses the equipment to grind activated alumina, the worker starts the drive motor 2, which drives the drive shaft 3 to rotate. A toothed synchronous belt is provided between the drive shaft 3 and the transmission shaft 11, so the transmission shaft 11 rotates, thereby driving the transmission gear 12, the partition plate 13, the first mounting column 14, the feed plate 16, the second mounting column 17, the blanking seat 19 and the fine grinding balls 20 to rotate, thereby driving multiple groups of grinding discs 15 and multiple groups of grinding blocks 18 to rotate;

[0057] When the transmission gear 12 rotates, the transmission gear 12 is meshed with the linkage gear 25, and the linkage gear 25 rotates. Since the diameter of the transmission gear 12 is larger than that of the linkage gear 25, the speed of the transmission gear 12 is greater than that of the linkage gear 25, thereby driving the linkage shaft 24 to rotate, and then driving the fan to rotate. The airflow enters the interior of the bellows 23 through the air inlet, and then the airflow enters the first air outlet plate 6 and the second air outlet plate 8 through the first air outlet pipe 26 and the second air outlet pipe 27 respectively. The first air outlet plate 6 discharges the airflow toward the feed port 7, and the second air outlet plate 8 discharges the airflow toward the interior of the equipment body 4.

[0058] When the driving motor 2 is started, the conveying device transports the activated alumina to the inside of the feed bin 5, and the inner wall of the bottom end of the feed bin 5 is inclined. The activated alumina slides through the feed bin 5 to the feed port 7, and then enters the inside of the equipment body 1 through the feed port 7. Multiple groups of grinding discs 15 preliminarily crush the activated alumina. The crushed activated alumina falls to the area of the feed plate 16. The feed plate 16 rotates to convey the crushed activated alumina to the upper end of the second mounting column 17, which increases the falling path of the activated alumina. However, the feed plate is spiral-shaped, which pushes the activated alumina, so that the activated alumina is in a continuous flow state, avoiding the active alumina from accumulating in the feed plate area and being squeezed into a powder block again;

[0059] When the activated alumina is initially crushed, part of the activated alumina floats upward in the form of dust and floats toward the feed port 7. The second air outlet plate 8 forms a first air flow wall at the feed port 7 to reduce the amount of dust flowing toward the outer end of the feed port 7. The first air outlet plate 6 forms a second air flow wall at the upper end of the feed bin 5 to further reduce the amount of dust flowing toward the outer end of the equipment body 4, thereby preventing the powder from diffusing with the air and causing pollution to the surrounding environment, and preventing workers from suffering from lung discomfort or other occupational diseases due to inhalation of excessive dust. At the same time, the loss of the activated alumina grinding operation is reduced, and the airflow discharged from the first air outlet plate 6 and the second air outlet plate 8 assists the activated alumina in sliding into the interior of the equipment body 4, thereby preventing the activated alumina from accumulating inside the feed bin 5.

[0060] When part of the activated alumina floats upward in the form of dust, part of the powder will adhere to the bottom end of the partition plate 13. A toothed synchronous belt is provided between the transmission shaft 11 and the two groups of limit columns 28. The two groups of limit columns 28 rotate, and the inner wall protrusions of the two groups of limit plates 29 are movably connected with the reciprocating thread grooves on the outer walls of the two groups of limit columns 28, and the inner walls of one end of the two groups of limit plates 29 are movably connected with the outer walls of the two groups of fixed columns 30, respectively. The two groups of movable columns 30 limit the two groups of limit plates 29, and the two groups of limit plates 29 move up and down. When the two sets of limit plates 29 move back and forth, when the two sets of limit plates 29 move downward, the other ends of the two sets of limit plates 29 push the two sets of movable plates 31 from top to bottom respectively. The two sets of movable plates 31 move downward, thereby driving the two sets of movable columns 32 to move downward. One end of the two sets of movable columns 32 knocks on the partition plate 13, causing the powder attached to the outer wall of the partition plate 13 to fall into the inside of the equipment body 4. Then the two sets of limit plates 29 move upward, and the multiple sets of springs 33 push the two sets of movable plates 31 to return to their original position, thereby driving the two sets of movable columns 32 to return to their original position.

[0061] After the activated alumina falls to the upper end of the second mounting column 17, the upper end of the second mounting column 17 is tilted, and the activated alumina falls between the multiple groups of grinding blocks 18 and the multiple groups of fixed blocks 21. The multiple groups of grinding blocks 18 rotate, and the multiple groups of grinding blocks 18 and the multiple groups of fixed blocks 21 cooperate to perform preliminary grinding operations on the activated alumina. The preliminarily ground activated alumina falls to the upper end of the blanking seat 19. The upper end of the blanking seat 19 is tilted, and a certain distance is set between the outer wall of the blanking seat 19 and the inside of the equipment body 4. The activated alumina falls to the upper end 20 of the fine grinding ball through the distance between the outer wall of the blanking seat 19 and the inner wall of the equipment body 4. The upper end of the fine grinding ball 20 is tilted, and a certain distance is set between the outer wall of the fine grinding ball 20 and the inner wall of the equipment body 4. The activated alumina enters the fine grinding ball 20 and In the gap of the equipment main body 4, the fine grinding balls 20 cooperate with the inner wall of the equipment main body 4 to perform secondary grinding of the activated alumina, and when the activated alumina passes through the gap between the upper end of the blanking seat 19 and the inner wall of the equipment main body 4 and the gap between the upper end of the fine grinding balls 20 and the equipment main body 4, part of the activated alumina is stuck in the above gap because its size is similar to the above gap. The two sets of auxiliary blocks 22 will push the activated alumina stuck in the above gap, so that the activated alumina passes through the above gap, thereby improving the grinding efficiency of the activated alumina. The ground activated alumina falls to the discharge port 9, and then the activated alumina powder enters the discharge pipe 10 through the discharge port 9. A powder recovery device is externally connected to one end of the discharge pipe 10, and the activated alumina enters the powder recovery device.

[0062] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A powder collection mechanism for an environmentally friendly activated alumina grinding device, comprising a mounting frame (1), a drive motor (2), and a device body (4), characterized in that: A driving motor (2) is mounted on the upper end of the mounting frame (1), and a device body (4) is mounted on one end of the mounting frame (1); A feed port (7) is provided at one end of the equipment body (4), a feed bin (5) is installed at one end of the equipment body (4), and the feed bin (5) is connected to the feed port (7), a first air outlet plate (6) is installed on the inner wall of the feed bin (5), and the air outlet of the first air outlet plate (6) faces the feed port (7), a second air outlet plate (8) is installed on the inner wall of the feed port (7), and the air outlet of the second air outlet plate (8) faces the inside of the equipment body (4), a bellows (23) is installed at the upper end of the equipment body (4), a first air outlet pipe (26) and a second air outlet pipe (27) are respectively provided between the bellows (23) and the first air outlet plate (6) and the second air outlet plate (8), and a discharge port (9) is provided at the bottom end of the equipment body (4), a discharge pipe (10) is installed at the discharge port (9), and the discharge pipe (10) is externally connected to a powder recovery device; The output end of the driving motor (2) is provided with a driving shaft (3), and a transmission shaft (11) is movably provided inside the device body (4). The transmission shaft (11) extends to one end of the outer wall of the device body (4) and is connected to the driving shaft (3) with a toothed synchronous belt, and a grinding assembly is provided on the outer wall of the transmission shaft (11).

2. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 1, characterized in that: The grinding assembly includes a first mounting column (14), a feeding plate (16), a second mounting column (17), a blanking seat (19) and a fine grinding ball (20); the first mounting column (14), the feeding plate (16), the second mounting column (17) and the blanking seat (19) are mounted on the outer wall of the transmission shaft (11), and the fine grinding ball (20) is mounted on the bottom end of the transmission shaft (11); the outer wall of the first mounting column (14) is mounted with multiple groups of grinding sheets (15); the feeding plate (16) is arranged in a spiral shape; the outer wall of the second mounting column (17) is mounted with multiple groups of grinding blocks (18), and the upper end of the second mounting column (17) is arranged in an inclined manner; the inner wall of the equipment body (4) is movably mounted with multiple groups of fixed blocks (21).

3. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 2, characterized in that: The upper end of the second mounting column (17), the upper end of the blanking seat (19) and the upper end of the fine grinding ball (20) are all arranged at an angle, an auxiliary block (22) is provided between the blanking seat (19) and the equipment body (4), an auxiliary block (22) is provided between the fine grinding ball (20) and the equipment body (4), and both ends of the two sets of auxiliary blocks (22) are arranged at an angle.

4. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 1, characterized in that: The outer wall of the transmission shaft (11) is installed with a transmission gear (12), the interior of the bellows (23) is installed with a linkage shaft (24), and a fan is installed on the outer wall of the linkage shaft (24). The linkage shaft (24) extends into the interior of the equipment body (4) and is installed with a linkage gear (25) at one end. The linkage gear (25) is meshed and connected with the transmission gear (12), and the diameter of the transmission gear (12) is larger than the diameter of the linkage gear (25).

5. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 1, characterized in that: A partition plate (13) is installed on the outer wall of the transmission shaft (11), and the outer wall of the upper end of the partition plate (13) is movably connected to the inner wall of the equipment body (4).

6. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 5, characterized in that: Two groups of limiting columns (28) are movably mounted on the upper end of the equipment body (4), and one end of the two groups of limiting columns (28) extends into the inner wall of the equipment body (4) and is connected to the transmission shaft (11) with a toothed synchronous belt.

7. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 6, characterized in that: The outer walls of the two groups of limit columns (28) are both provided with reciprocating thread grooves, the outer walls of the two groups of limit columns (28) are both movably mounted with limit plates (29), and the inner wall protrusions of the two groups of limit plates (29) are both movably connected to the two groups of reciprocating thread grooves.

8. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 7, characterized in that: Two groups of fixed columns (30) are installed on the upper end of the equipment body (4), and the inner walls of one end of the two groups of limiting plates (29) are movably connected to the outer walls of the two groups of fixed columns (30).

9. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 8, characterized in that: Two groups of movable columns (32) are movably mounted on the upper end of the equipment body (4), and one end of the two groups of movable columns (32) extending into the interior of the equipment body (4) is movably connected to the partition plate (13). A movable plate (31) is mounted on the upper end of the two groups of movable columns (32), and the other ends of the two groups of limit plates (29) are movably connected to the two groups of movable plates (31) respectively.

10. The powder collection mechanism of the environmentally friendly activated alumina grinding equipment according to claim 9, characterized in that: Two groups of springs (33) are installed at the bottom ends of the two groups of movable plates (31), and one end of the multiple groups of springs (33) is connected to the upper end of the device body (4).

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