Calcium aluminate powder grading and grinding integrated device

Abstract

This invention discloses an integrated device for classifying and grinding calcium aluminate powder, comprising a processing box, a feed hopper fixedly connected to the top of the processing box, two transmission rods rotatably connected to the processing box, a primary grinding mechanism between the two transmission rods, a uniform feeding mechanism inside the feed hopper, and cleaning mechanisms on both sides of the primary grinding mechanism; a collection bowl fixedly connected to the inner wall of the processing box, a conveying pipe fixedly connected to the bottom of the collection bowl, a grinding plate fixedly connected to the inner wall of the processing box, and the bottom of the conveying pipe fixedly connected to the top of the grinding plate. This invention achieves integrated continuous operation of uniform feeding, primary grinding, secondary fine grinding, vibrating screening, and reprocessing of unqualified materials.

Description

Technical Field

[0001] This invention relates to the field of calcium aluminate production and processing technology, and in particular to an integrated device for classifying and grinding calcium aluminate powder. Background Technology

[0002] Calcium aluminate is an important inorganic chemical raw material, widely used in cement additives, metallurgical fluxes, refractory materials, water treatment agents, and many other fields. In the production of calcium aluminate, powder grinding is one of the key processes, as the particle size and uniformity of the calcium aluminate powder directly affect its subsequent performance and product quality.

[0003] Currently, the grinding and processing of calcium aluminate powder typically employs a multi-stage, independent equipment combination: first, coarse crushing is performed using a jaw crusher; then, fine grinding is done using a ball mill; and finally, screening is performed using a vibrating screen. This traditional processing method has the following significant drawbacks: 1. The equipment is scattered and occupies a large area: It requires the use of multiple independent machines, which are connected by conveyor devices. The overall production line occupies a large area and has high infrastructure costs. 2. Uneven feeding: Traditional feeding methods can easily lead to material accumulation in the grinding equipment, resulting in uneven load on the grinding rollers. This not only affects the grinding effect but also easily causes material jamming and may even damage the equipment. 3. Poor grinding effect: Single-stage grinding is difficult to ensure the uniformity of powder particle size, and it is easy to produce particles that are too coarse or too fine; in addition, calcium aluminate material is easy to adhere to the surface of the grinding roller during the grinding process, which reduces grinding efficiency and product quality. Therefore, we designed an integrated device for classifying and grinding calcium aluminate powder to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an integrated device for classifying and grinding calcium aluminate powder that is compact, has low energy consumption, high grinding efficiency, uniform product particle size, and a high degree of automation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An integrated device for classifying and grinding calcium aluminate powder includes a processing box. A feed hopper is fixedly connected to the top of the processing box. Two transmission rods rotatably connected to the processing box are threaded through it. A primary grinding mechanism is located between the two transmission rods. A uniform feeding mechanism is located inside the feed hopper. Cleaning mechanisms are located on both sides of the primary grinding mechanism. A collection bowl is fixedly connected to the inner wall of the processing box. A conveying pipe is fixedly connected to the bottom of the collection bowl. A grinding plate is fixedly connected to the inner wall of the processing box. The bottom of the conveying pipe is fixedly connected to the top of the grinding plate. A triangular plate is fixedly connected to the inner wall of the processing box. A [missing information - likely a device name] is threaded through the processing box. A second rotating rod is rotatably connected to the gear. A driving bevel gear is fixedly connected to the outer wall of the second rotating rod. The driving bevel gear meshes with a driven bevel gear. A rotating rod is fixedly connected to the driven bevel gear on the same axis. The rotating rod passes through a triangular plate and is rotatably connected to it. A grinding roller is fixedly connected to the outer wall of the rotating rod. A spiral conveying blade is fixedly connected to the top of the rotating rod, located above the grinding roller and coaxially arranged with the rotating rod. A screening screen is rotatably connected to the inner wall of the processing box. A discharge port is opened through the processing box. One end of the screening screen passes through the discharge port. An anti-clogging mechanism is provided below the screening screen.

[0006] Preferably, the primary grinding mechanism includes a crushing roller that is fixedly connected to the outer wall of each transmission rod, and the two crushing rollers are located inside the processing box and cooperate with each other; the outer walls of the two transmission rods are fixedly connected with transmission gears, and the two transmission gears mesh with each other.

[0007] Preferably, the uniform feeding mechanism includes a first rotating rod that passes through and is rotatably connected to the feeding hopper, and a plurality of distribution plates located inside the feeding hopper and distributed at equal intervals are fixedly connected to the outer wall of the first rotating rod.

[0008] Preferably, the cleaning mechanism includes an arc-shaped plate located on one side of the crushing roller. Multiple brushes are fixedly connected to the end of the arc-shaped plate near the crushing roller, with the ends of the brushes contacting the outer wall of the crushing roller. A hollow column is fixedly connected to the end of the arc-shaped plate away from the crushing roller. A threaded rod threadedly connected to the hollow column passes through the column and is rotatably sealed to it. A handle is fixedly connected to the end of the threaded rod away from the processing box. A telescopic rod is fixedly connected between the end of the arc-shaped plate away from the crushing roller and the inner wall of the processing box.

[0009] Preferably, the anti-clogging mechanism includes a third rotating rod that passes through and is rotatably connected to the processing box. The outer wall of the third rotating rod is fixedly connected with a plurality of cams that are evenly spaced, and the outer edge of each cam abuts against the lower surface of the screening screen.

[0010] Preferably, a first pulley is fixedly connected to the outer wall of the first rotating rod and the outer wall of the left transmission rod, and a first synchronous belt is sleeved on the outer walls of the two first pulleys; a second pulley is fixedly connected to the outer wall of the right transmission rod and the outer wall of the second rotating rod, and a second synchronous belt is sleeved on the outer walls of the two second pulleys; a third pulley is fixedly connected to the outer wall of the second rotating rod and the outer wall of the third rotating rod, and a third synchronous belt is sleeved on the outer walls of the two third pulleys.

[0011] Preferably, a protective shell is fixedly connected to the outer wall of the processing box, and the first synchronous belt, the second synchronous belt, the third synchronous belt and the two transmission gears are all located inside the protective shell.

[0012] Preferably, the screening screen is inclined.

[0013] Preferably, a motor is fixedly connected to the rear end of the processing box, and the output shaft of the motor passes through the processing box and is fixedly connected to the transmission rod on the right side.

[0014] Preferably, the bottom of the processing box is truncated cone-shaped, the bottom of the processing box is fixedly connected to a discharge hopper, and the bottom of the processing box is fixedly connected to four support legs.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention integrates functions such as uniform feeding, primary grinding, secondary fine grinding, and vibrating screening into one processing box, eliminating the need for multiple devices to work together, greatly reducing the equipment footprint and lowering infrastructure costs.

[0016] 2. A single motor can drive the uniform feeding mechanism, primary grinding mechanism, secondary grinding mechanism and anti-clogging mechanism to work simultaneously. The transmission system is simple and reliable, with high energy utilization, effectively reducing production energy consumption.

[0017] 3. By setting up a uniform feeding mechanism, the material in the feed hopper can be evenly distributed and fall, ensuring a uniform load on the primary grinding mechanism, avoiding material jamming caused by concentrated accumulation, and improving the stability of equipment operation.

[0018] 4. The graded grinding method, which combines primary grinding and secondary fine grinding, can effectively improve grinding efficiency, ensure the particle size uniformity of calcium aluminate powder, and improve product quality.

[0019] 5. By setting up a cleaning mechanism, it can continuously clean the calcium aluminate material adhering to the surface of the crushing roller, ensuring the grinding efficiency of the crushing roller; and the cleaning force of the cleaning mechanism is adjustable, which can be adjusted according to the actual use.

[0020] 6. By setting an anti-clogging mechanism, the screening screen can generate continuous vibration, which can effectively prevent powder from clogging the screen mesh, improve screening efficiency, and ensure production continuity.

[0021] 7. The unqualified materials screened out can be discharged directly from the outlet, collected and put back into the feed hopper for re-grinding, forming a complete closed-loop production process. This eliminates the need for frequent manual intervention, reduces labor intensity, and improves production efficiency.

[0022] In summary, this invention features a compact structure, low energy consumption, high grinding efficiency, uniform product particle size, and a high degree of automation. It can effectively solve many defects of existing calcium aluminate powder grinding equipment and has broad application prospects. Attached Figure Description

[0023] Figure 1 This is a first structural schematic diagram of an integrated device for classifying and grinding calcium aluminate powder proposed in this invention. Figure 2 This is a schematic diagram of the second structure of an integrated calcium aluminate powder classification and grinding device proposed in this invention; Figure 3 This is a schematic diagram of the structure of an integrated calcium aluminate powder classification and grinding device after removing the protective shell, as proposed in this invention. Figure 4 This is a first cross-sectional schematic diagram of an integrated device for classifying and grinding calcium aluminate powder proposed in this invention. Figure 5 This is a second cross-sectional schematic diagram of an integrated device for classifying and grinding calcium aluminate powder proposed in this invention.

[0024] In the diagram: 1. Processing box, 2. Feed hopper, 3. Motor, 4. Transmission rod, 5. Crushing roller, 6. Arc plate, 7. Brush, 8. Hollow column, 9. Threaded rod, 10. Handle, 11. Telescopic rod, 12. First rotating rod, 13. Distributor plate, 14. Triangular plate, 15. Second rotating rod, 16. Driving bevel gear, 17. Driven bevel gear, 18. Rotating rod, 19. Grinding roller, 20. Collection bowl, 21. Feed pipe, 22. Grinding plate, 23. Spiral conveyor blade, 24. Third rotating rod, 25. Cam, 26. Screening screen, 27. Discharge port, 28. Discharge hopper, 29. First synchronous belt, 30. Transmission gear, 31. Second synchronous belt, 32. Third synchronous belt, 33. Protective shell. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Reference Figures 1-4An integrated device for classifying and grinding calcium aluminate powder includes a processing box 1. The bottom of the processing box 1 is truncated cone-shaped to facilitate the smooth collection and discharge of the qualified powder. The bottom of the processing box 1 is fixedly connected to a discharge hopper 28, and the bottom of the processing box 1 is fixedly connected to four support legs to provide stable support for the entire device.

[0027] The top of the processing box 1 is fixedly connected to a feed hopper 2 for feeding calcium aluminate material to be processed. Two drive rods 4 are rotatably connected to the processing box 1. A primary grinding mechanism is located between the two drive rods 4. The primary grinding mechanism includes crushing rollers 5 fixedly connected to the outer wall of each drive rod 4. The two crushing rollers 5 are located inside the processing box 1 and cooperate with each other for preliminary crushing and grinding of the calcium aluminate material. Drive gears 30 are fixedly connected to the outer walls of the two drive rods 4. The two drive gears 30 mesh with each other to ensure that the two crushing rollers 5 can rotate synchronously in opposite directions, achieving a highly efficient primary grinding effect.

[0028] The feeding hopper 2 is equipped with a uniform feeding mechanism, which includes a first rotating rod 12 that passes through the feeding hopper 2 and is rotatably connected to it. The outer wall of the first rotating rod 12 is fixedly connected with a plurality of material distribution plates 13 located in the feeding hopper 2 and distributed at equal intervals. When the material distribution plates 13 rotate, they can evenly disperse and fall the material in the feeding hopper 2, avoiding the accumulation of material which would cause uneven load on the primary grinding mechanism or jamming.

[0029] Cleaning mechanisms are provided on both sides of the primary grinding mechanism. The cleaning mechanism includes an arc-shaped plate 6 located on one side of the crushing roller 5. Multiple brushes 7 are fixedly connected to the end of the arc-shaped plate 6 near the crushing roller 5. The ends of the brushes 7 contact the outer wall of the crushing roller 5 to clean the calcium aluminate material adhering to the surface of the crushing roller 5, ensuring the grinding efficiency of the crushing roller 5. A hollow column 8 is fixedly connected to the end of the arc-shaped plate 6 away from the crushing roller 5. A threaded rod 9 is threaded through the hollow column 8 and connected to it. The threaded rod 9 passes through the processing box 1 and is rotatably sealed to it. A handle 10 is fixedly connected to the end of the threaded rod 9 away from the processing box 1. By rotating the handle 10, the distance between the brushes 7 and the crushing roller 5 can be adjusted, and the cleaning force of the brushes 7 on the outer wall of the crushing roller 5 can be adjusted. A telescopic rod 11 is fixedly connected between the end of the arc-shaped plate 6 away from the crushing roller 5 and the inner wall of the processing box 1 to guide the arc-shaped plate 6 and prevent it from rotating during the adjustment process.

[0030] A collection bowl 20 is fixedly connected to the inner wall of the processing box 1. The top of the collection bowl 20 is fixedly connected to the inner wall of the processing box 1 (the top of the collection bowl 20 is sealed and fixedly connected to the inner wall of the processing box 1). It is used to collect the calcium aluminate material after primary grinding. A conveying pipe 21 is fixedly connected to the bottom of the collection bowl 20. A grinding plate 22 is fixedly connected to the inner wall of the processing box 1. The bottom of the conveying pipe 21 is fixedly connected to the top of the grinding plate 22. It is used to convey the material after primary grinding to the secondary grinding area.

[0031] A triangular plate 14 is fixedly connected to the inner wall of the processing box 1. A second rotating rod 15 is rotatably connected to the processing box 1. A driving bevel gear 16 is fixedly connected to the outer wall of the second rotating rod 15. The driving bevel gear 16 meshes with a driven bevel gear 17. A rotating rod 18 is fixedly connected to the driven bevel gear 17 on the same axis. The rotating rod 18 passes through the triangular plate 14 and is rotatably connected to it. The triangular plate 14 provides stable rotational support for the rotating rod 18. A grinding roller 19 is fixedly connected to the outer wall of the rotating rod 18. The upper surface of the grinding roller 19 abuts against the lower surface of the grinding plate 22 and is used for secondary fine grinding of the material after initial grinding. A spiral conveying blade 23 is fixedly connected to the top of the rotating rod 18, located above the grinding roller 19 and coaxially arranged with the rotating rod 18. When the spiral conveying blade 23 rotates, it can continuously inject the material in the conveying pipe 21 into the area around the upper surface of the grinding roller 19.

[0032] A sieve screen 26 is rotatably connected to the inner wall of the processing box 1. A discharge port 27 is provided through the processing box 1, and one end of the sieve screen 26 is arranged through the discharge port 27. The sieve screen 26 is inclined to facilitate the discharge of unqualified materials from the discharge port 27 under the action of gravity. An anti-clogging mechanism is provided below the sieve screen 26. The anti-clogging mechanism includes a third rotating rod 24 that passes through the processing box 1 and is rotatably connected to it. Multiple cams 25 with equal spacing are fixedly connected to the outer wall of the third rotating rod 24. The outer edge of each cam 25 abuts against the lower surface of the sieve screen 26. The rotation of the cams 25 can periodically lift the sieve screen 26, causing the sieve screen 26 to vibrate and preventing powder from clogging the mesh of the sieve screen 26.

[0033] First pulleys are fixedly connected to the outer walls of the first rotating rod 12 and the left transmission rod 4, and a first synchronous belt 29 is fitted onto the outer walls of the two first pulleys. Second pulleys are fixedly connected to the outer walls of the right transmission rod 4 and the second rotating rod 15, and a second synchronous belt 31 is fitted onto the outer walls of the two second pulleys. Third pulleys are fixedly connected to the outer walls of the second rotating rod 15 and the third rotating rod 24, and a third synchronous belt 32 is fitted onto the outer walls of the two third pulleys. A motor 3 is fixedly connected to the rear end of the processing box 1. The output shaft of the motor 3 passes through the processing box 1 and is coaxially fixedly connected to the right transmission rod 4. A single motor 3 can drive the uniform feeding mechanism, the primary grinding mechanism, the secondary grinding mechanism, and the anti-clogging mechanism to work simultaneously. The structure is compact and the energy consumption is low. A protective shell 33 is fixedly connected to the outer wall of the processing box 1. The first synchronous belt 29, the second synchronous belt 31, the third synchronous belt 32 and the two transmission gears 30 are all located inside the protective shell 33. The protective shell 33 can prevent calcium aluminate dust from entering the transmission components, extend the service life of the transmission components, and improve the safety of the device.

[0034] Driven by a single motor 3, this device achieves integrated continuous operation of uniform feeding, primary grinding, secondary fine grinding, vibrating screening, and reprocessing of unqualified materials. The calcium aluminate material to be processed is fed into the feed hopper 2, uniformly fed by the feeding mechanism, and then enters the primary grinding mechanism for initial crushing. The material after primary grinding is conveyed to the secondary grinding area via the collection bowl 20 and conveying pipe 21, where it is conveyed by the spiral conveyor blades 23 for secondary fine grinding. The ground material falls into the screening screen 26 for screening. Qualified powder passes through the screening screen 26 and is discharged from the discharge hopper 28 for collection, while unqualified powder is discharged from the discharge port 27 along the inclined screening screen 26. After collection, it can be reintroduced into the feed hopper 2 for further grinding. The entire process forms a complete closed-loop production flow, effectively improving the grinding efficiency and product quality of calcium aluminate powder.

[0035] In this invention, the operator first starts the motor 3. The output shaft of the motor 3 drives the right transmission rod 4 to rotate. The right transmission rod 4, through two meshing transmission gears 30, drives the left transmission rod 4 to rotate synchronously in the opposite direction, thereby causing the two crushing rollers 5 to rotate synchronously in the opposite direction, performing initial grinding of the calcium aluminate material entering between them. Simultaneously, the left transmission rod 4 drives the first rotating rod 12 to rotate through the first synchronous belt 29. The first rotating rod 12 drives multiple distribution plates 13 to rotate synchronously, evenly dispersing the calcium aluminate material in the feed hopper 2 and ensuring the stability of the initial grinding process. During the initial grinding process, the brush 7 continuously contacts the outer wall of the crushing roller 5 to clean the material adhering to the surface of the crushing roller 5. The operator can rotate the handle 10 to drive the threaded rod 9 to rotate, thereby moving the hollow column 8 and the arc plate 6 towards the crushing roller 5, adjusting the distance between the brush 7 and the crushing roller 5 to ensure the cleaning effect. After initial grinding, the calcium aluminate material falls into the collection bowl 20. Simultaneously, the right-side drive rod 4 drives the second rotating rod 15 to rotate via the second synchronous belt 31. The second rotating rod 15 drives the driving bevel gear 16 to rotate, which in turn drives the rotating rod 18 to rotate via its meshing driven bevel gear 17. The rotating rod 18 simultaneously drives the grinding roller 19 and the spiral conveyor blades 23 to rotate. As the spiral conveyor blades 23 rotate, the material conveyed from the collection bowl 20 via the conveying pipe 21 falls around the upper surface of the grinding roller 19. The upper surface of the grinding roller 19 abuts against the lower surface of the grinding plate 22, performing secondary fine grinding on the material. After secondary grinding, the material falls onto the screening screen 26 below. Simultaneously, the second rotating rod 15 drives the third rotating rod 24 to rotate via the third synchronous belt 32. The third rotating rod 24 drives multiple cams 25 to rotate synchronously. When the protruding part of the cam 25 abuts against the lower surface of the screening screen 26, it causes the screening screen 26 to be pushed upward at a certain angle. When the protruding part of the cam 25 is no longer in contact with the screening screen 26, the screening screen 26 returns to its original position under the action of gravity and collides with the inner wall of the discharge port 27, causing the screening screen 26 to vibrate continuously, effectively preventing powder from clogging the mesh of the screening screen 26. During the screening process, calcium aluminate powder with qualified particle size falls through the mesh of the screening screen 26, collects at the frustum-shaped bottom of the processing box 1, and is discharged from the discharge hopper 28. Calcium aluminate powder with unqualified particle size slides along the inclined screening screen 26 towards the discharge port 27 and is finally discharged from the discharge port 27. The workers collect the discharged unqualified material and pour it back into the feed hopper 2 for re-grinding until all materials meet the qualified particle size requirements.

[0036] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A calcium aluminate powder classification and grinding integrated device, comprising a processing box (1), characterized in that, The top of the processing box (1) is fixedly connected to a feeding hopper (2). Two transmission rods (4) are rotatably connected to the processing box (1). A primary grinding mechanism is provided between the two transmission rods (4). A uniform feeding mechanism is provided inside the feeding hopper (2). Cleaning mechanisms are provided on both sides of the primary grinding mechanism. A collection bowl (20) is fixedly connected to the inner wall of the processing box (1). A conveying pipe (21) is fixedly connected to the bottom of the collection bowl (20). A grinding plate (22) is fixedly connected to the inner wall of the processing box (1). The bottom of the conveying pipe (21) is fixedly connected to the top of the grinding plate (22). A triangular plate (14) is fixedly connected to the inner wall of the processing box (1). A second rotating rod (15) is rotatably connected to the processing box (1). 15) The outer wall is fixedly connected to a drive bevel gear (16), which meshes with a driven bevel gear (17). A rotating rod (18) is fixedly connected to the driven bevel gear (17) on the same axis. The rotating rod (18) passes through the triangular plate (14) and is rotatably connected to it. A grinding roller (19) is fixedly connected to the outer wall of the rotating rod (18). A spiral conveying blade (23) is fixedly connected to the top of the rotating rod (18) and is located above the grinding roller (19) and is coaxially arranged with the rotating rod (18). A screening screen (26) is rotatably connected to the inner wall of the processing box (1). A discharge port (27) is opened through the processing box (1). One end of the screening screen (26) passes through the discharge port (27). An anti-clogging mechanism is provided below the screening screen (26).

2. The integrated device for classifying and grinding calcium aluminate powder according to claim 1, characterized in that, The initial grinding mechanism includes a crushing roller (5) that is fixedly connected to the outer wall of each transmission rod (4). The two crushing rollers (5) are located inside the processing box (1) and cooperate with each other. The outer walls of the two transmission rods (4) are fixedly connected with transmission gears (30), and the two transmission gears (30) mesh with each other.

3. The integrated device for classifying and grinding calcium aluminate powder according to claim 2, characterized in that, The uniform feeding mechanism includes a first rotating rod (12) that passes through the feeding hopper (2) and is rotatably connected thereto. The outer wall of the first rotating rod (12) is fixedly connected to a plurality of material distribution plates (13) located inside the feeding hopper (2) and distributed at equal intervals.

4. The integrated device for classifying and grinding calcium aluminate powder according to claim 3, characterized in that, The cleaning mechanism includes an arc-shaped plate (6) located on one side of the crushing roller (5). A plurality of brushes (7) are fixedly connected to one end of the arc-shaped plate (6) near the crushing roller (5). The ends of the brushes (7) are in contact with the outer wall of the crushing roller (5). A hollow column (8) is fixedly connected to one end of the arc-shaped plate (6) away from the crushing roller (5). A threaded rod (9) is threaded through the hollow column (8) and threadedly connected to it. The threaded rod (9) passes through the processing box (1) and is rotatably sealed to it. A handle (10) is fixedly connected to one end of the threaded rod (9) away from the processing box (1). A telescopic rod (11) is fixedly connected between the end of the arc-shaped plate (6) away from the crushing roller (5) and the inner wall of the processing box (1).

5. The integrated device for classifying and grinding calcium aluminate powder according to claim 4, characterized in that, The anti-clogging mechanism includes a third rotating rod (24) that passes through the processing box (1) and is rotatably connected thereto. The outer wall of the third rotating rod (24) is fixedly connected with a plurality of cams (25) that are evenly distributed. The outer edge of each cam (25) abuts against the lower surface of the screening screen (26).

6. The integrated device for classifying and grinding calcium aluminate powder according to claim 5, characterized in that, The outer walls of the first rotating rod (12) and the left transmission rod (4) are both fixedly connected to the first pulleys, and the outer walls of the two first pulleys are jointly fitted with the first synchronous belt (29); the outer walls of the right transmission rod (4) and the second rotating rod (15) are both fixedly connected to the second pulleys, and the outer walls of the two second pulleys are jointly fitted with the second synchronous belt (31); the outer walls of the second rotating rod (15) and the third rotating rod (24) are both fixedly connected to the third pulleys, and the outer walls of the two third pulleys are jointly fitted with the third synchronous belt (32).

7. The integrated device for classifying and grinding calcium aluminate powder according to claim 6, characterized in that, The outer wall of the processing box (1) is fixedly connected to a protective shell (33), and the first synchronous belt (29), the second synchronous belt (31), the third synchronous belt (32) and the two transmission gears (30) are all located inside the protective shell (33).

8. The integrated device for classifying and grinding calcium aluminate powder according to claim 1, characterized in that, The screening screen (26) is set at an angle.

9. The integrated device for classifying and grinding calcium aluminate powder according to claim 1, characterized in that, The rear end of the processing box (1) is fixedly connected to a motor (3), and the output shaft of the motor (3) passes through the processing box (1) and is coaxially fixedly connected to the transmission rod (4) on the right side.

10. The integrated device for classifying and grinding calcium aluminate powder according to claim 1, characterized in that, The bottom of the processing box (1) is shaped like a frustum. The bottom of the processing box (1) is fixedly connected to a discharge hopper (28). The bottom of the processing box (1) is fixedly connected to four support legs.

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