Vertical mill type powder concentrator capable of returning materials

By introducing a toothed plate and worm gear mechanism driven by a forward and reverse rotating electric motor into the vertical mill classifier, the problem of material jamming at the filter screen opening was solved, achieving efficient material filtration and screening and improving the efficiency of the roller mill.

CN223959745UActive Publication Date: 2026-03-03DOMESTIC IND FUJIAN CEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In existing vertical mill classifiers, materials tend to get stuck in the filter screen openings after roller milling, resulting in reduced filtration efficiency.

Method used

The device employs a forward and reverse rotating electric motor to drive a toothed plate and a worm gear mechanism. Through the transmission of the toothed plate, gears, worm, and worm gear, the beaters beat the filter screen to remove stuck materials. At the same time, the electric motor drives a pusher plate and filter plate to screen materials of different sizes.

Benefits of technology

It improves the filtration effect of the filter screen, ensures the smooth passage of materials, avoids material waste, and improves the efficiency of the roller mill.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223959745U_ABST
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Abstract

The utility model discloses a vertical mill type powder concentrator capable of returning materials, which relates to the field of powder concentrators and comprises a machine body, an annular groove is arranged on the inner wall of the machine body, a groove is arranged at the bottom of the annular groove, a positive and negative rotation motor is arranged at the top of the machine body, and a third fixing rod is arranged at the output end of the positive and negative rotation motor. By arranging the forward and reverse rotation motor, the third fixing rod is driven to rotate by the forward and reverse rotation motor, the toothed plate is driven to rotate when the third fixing rod rotates, the toothed plate rotates through a meshing connection transmission gear when the toothed plate rotates, and the fourth fixing rod is driven to rotate when the gear rotates. A worm is driven to rotate when a fourth fixing rod rotates, a worm gear is driven to rotate through meshing connection when the worm rotates, a supporting rod is driven to rotate when the worm gear rotates, a beating block is driven to move when the supporting rod rotates, and a first filter screen is beaten and clamped materials are beaten out when the beating block moves, so that the filtering effect is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a vertical mill classifier with recyclable material. Background Technology

[0002] Air classifiers are widely used in coal mills, raw material unloading drying mills, and cement mill systems in new dry process cement production lines. They can be divided into three main categories: three-stage air classifiers, centrifugal air classifiers, and cyclone air classifiers.

[0003] The existing patent CN111229390B discloses a vertical mill classifier with recyclable material. After crushing, when hot air is blown into the hot air inlet pipe, the standard dust rises from the first and second channels. At this time, the small particles are filtered by the first and second filter components, blocking particles that do not meet the size requirements below the first and second filter components. At this time, the first baffle closes the first channel, while the second channel remains open. When the first channel loses its airflow, the particles that were originally suspended in mid-air fall down onto the grinding disc as they lose their upward force, thus undergoing secondary grinding. Similarly, when the first baffle is closed and the second baffle is opened, the particles suspended in mid-air fall down for re-grinding. Therefore, by intermittently closing the first and second channels, the particles suspended in mid-air are allowed to fall down by gravity for secondary grinding, which improves the efficiency of material grinding, avoids material waste, and improves the efficiency of particle crushing.

[0004] The existing equipment uses a roller to grind the material, but the grinding process causes some of the material to get stuck in the filter screen opening, resulting in a reduction in filtration efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a vertical mill classifier that allows for material return, in order to solve the problem that some material gets stuck in the filter screen after roller milling, resulting in reduced filtration efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical mill classifier with recyclable material, comprising a body, an annular groove formed on the inner wall of the body, the body fixing the annular groove, a recess formed at the bottom of the annular groove, a forward and reverse rotation motor mounted on the top of the body, a third fixed rod at the output end of the forward and reverse rotation motor, the forward and reverse rotation motor driving the third fixed rod to rotate, a toothed plate fixed at the bottom of the third fixed rod, the toothed plate rotating when the third fixed rod rotates, a gear meshing with one side of the toothed plate, the gear rotating when the toothed plate rotates through the meshing connection, and the gear being located inside the annular groove, a fourth fixed rod fixed at the bottom of the gear, the fourth fixed rod rotating when the gear rotates, and the fourth fixed rod penetrating into the interior of the recess.

[0007] Preferably, a worm is fixed to the bottom of the fourth fixed rod. When the fourth fixed rod rotates, it drives the worm to rotate. The worm is located inside the groove. A worm wheel is meshed with one side of the worm. When the worm rotates, it drives the worm wheel to rotate through the meshing connection.

[0008] Preferably, support rods are fixed on both sides of the worm gear, and the worm gear rotates to drive the support rods to rotate. A block is fixed on one side of the support rod, and the block moves when the support rod rotates.

[0009] Preferably, a base is fixed to the bottom of the machine body, the base fixes the machine body, a discharge port is fixed to one side of the machine body, the machine body fixes the discharge port, and a feed port is fixed to one end of the top of the machine body, the machine body fixes the feed port.

[0010] Preferably, a first filter plate is fixed to the inner wall of the machine body, and the beater is located at the bottom of the first filter plate.

[0011] Preferably, a second fixing rod is fixed to the bottom of the toothed plate. When the toothed plate rotates, it drives the second fixing rod to rotate. Crushing rods are fixed on both sides of the second fixing rod. When the second fixing rod rotates, it drives the crushing rods to rotate. The crushing rods are located at the top of the first filter plate.

[0012] Preferably, a positive motor is installed at the bottom of the base, and a first fixing rod is fixed to the output end of the motor. When the motor rotates, it drives the first fixing rod to rotate. The first fixing rod extends through to the top of the first filter plate, and a second filter plate is fixed to the top of the first fixing rod. When the first fixing rod rotates, it drives the second filter plate to rotate. A push plate is fixed to one side of the first fixing rod. When the first fixing rod rotates, it drives the push plate to rotate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up forward and reverse rotating motors, the forward and reverse rotating motors drive the third fixed rod to rotate. When the third fixed rod rotates, it drives the toothed plate to rotate. When the toothed plate rotates, it rotates through the meshing connection of the transmission gear. When the gear rotates, it drives the fourth fixed rod to rotate. When the fourth fixed rod rotates, it drives the worm gear to rotate through the meshing connection. When the worm gear rotates, it drives the support rod to rotate. When the support rod rotates, it drives the beater to move. When the beater moves, it beats the first filter screen to knock out the stuck material, thereby improving the filtration effect.

[0015] 2. By setting up an electric motor, the rotation of the electric motor drives the first fixed rod to rotate, and the rotation of the first fixed rod simultaneously drives the push plate and the second filter plate to rotate. The second filter plate rotates on top of the first filter plate. By rotating the second filter screen, the mesh of the first filter screen is restricted, thereby screening materials of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of A in the middle;

[0019] Figure 4 for Figure 2 A schematic diagram of the structure of B in the middle.

[0020] In the diagram: 1. Base; 2. Discharge port; 3. Machine body; 4. Feed port; 5. Pound block; 6. Motor; 7. Groove; 8. First filter plate; 9. Gear; 10. Crushing rod; 11. First fixing rod; 12. Second fixing rod; 13. Annular groove; 14. Third fixing rod; 15. Forward and reverse rotation motor; 16. Gear plate; 17. Fourth fixing rod; 18. Worm gear; 19. Support rod; 20. Push plate; 21. Worm; 22. Second filter plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , 23. This utility model provides a technical solution for a recyclable vertical mill classifier: A recyclable vertical mill classifier includes a body 3, an annular groove 13 is provided on the inner wall of the body 3, the body 3 fixes the annular groove 13, a groove 7 is provided at the bottom of the annular groove 13, a forward and reverse rotation motor 15 is installed on the top of the body 3, a third fixed rod 14 is provided at the output end of the forward and reverse rotation motor 15, the forward and reverse rotation motor 15 drives the third fixed rod 14 to rotate, a toothed plate 16 is fixed at the bottom of the third fixed rod 14, the third fixed rod 14 drives the toothed plate 16 to rotate when it rotates, a gear 9 is meshed on one side of the toothed plate 16, the toothed plate 16 drives the gear 9 to rotate when it rotates, and the gear 9 is located inside the annular groove 13, a fourth fixed rod 17 is fixed at the bottom of the gear 9, the gear 9 drives the fourth fixed rod 17 to rotate when it rotates, and the fourth fixed rod 17 penetrates into the inside of the groove 7;

[0023] The forward and reverse rotating motor 15 drives the third fixed rod 14 to rotate. When the third fixed rod 14 rotates, it drives the toothed plate 16 to rotate. When the toothed plate 16 rotates, it drives the gear 9 to rotate through meshing connection.

[0024] Please refer to this carefully. Figure 3 The bottom of the fourth fixed rod 17 is fixed with a worm 21. When the fourth fixed rod 17 rotates, it drives the worm 21 to rotate. The worm 21 is located inside the groove 7. A worm wheel 18 is meshed with one side of the worm 21. When the worm 21 rotates, it drives the worm wheel 18 to rotate through the meshing connection. Support rods 19 are fixed on both sides of the worm wheel 18. When the worm wheel 18 rotates, it drives the support rods 19 to rotate. A paddle 5 is fixed on one side of the support rod 19. When the support rod 19 rotates, it drives the paddle 5 to move.

[0025] When the fourth fixed rod 17 rotates, it drives the worm 21 to rotate. When the worm 21 rotates, it drives the worm wheel 18 to rotate through the meshing connection.

[0026] In this embodiment: when the third fixed rod 14 rotates, it drives the toothed plate 16 to rotate. When the toothed plate 16 rotates, it rotates through the meshing connection of the transmission gear 9. When the gear 9 rotates, it drives the fourth fixed rod 17 to rotate. When the fourth fixed rod 17 rotates, it drives the worm gear 21 to rotate. When the worm gear 21 rotates, it drives the worm wheel 18 to rotate through the meshing connection. When the worm wheel 18 rotates, it drives the support rod 19 to rotate. When the support rod 19 rotates, it drives the paddle block 5 to move.

[0027] Please refer to this carefully. Figure 1The bottom of the machine body 3 is fixed with a base 1, which fixes the machine body 3. The side of the machine body 3 is fixed with a discharge port 2, which is fixed to the machine body 3. The top of the machine body 3 is fixed with a feed port 4, which is fixed to the machine body 3. The inner wall of the machine body 3 is fixed with a first filter plate 8, and the paddle 5 is located at the bottom of the first filter plate 8.

[0028] The base 1 fixes the machine body 3, the machine body 3 fixes the discharge port 2, and the machine body 3 fixes the feed port 4.

[0029] Please refer to this carefully. Figure 2 A second fixing rod 12 is fixed to the bottom of the toothed plate 16. When the toothed plate 16 rotates, it drives the second fixing rod 12 to rotate. Crushing rods 10 are fixed to both sides of the second fixing rod 12. When the second fixing rod 12 rotates, it drives the crushing rods 10 to rotate. The crushing rods 10 are located at the top of the first filter plate 8. A positive motor 6 is installed at the bottom of the base 1. A first fixing rod 11 is fixed to the output end of the motor 6. When the motor 6 rotates, it drives the first fixing rod 11 to rotate. The first fixing rod 11 extends to the top of the first filter plate 8. A second filter plate 22 is fixed to the top of the first fixing rod 11. When the first fixing rod 11 rotates, it drives the second filter plate 22 to rotate. A push plate 20 is fixed to one side of the first fixing rod 11. When the first fixing rod 11 rotates, it drives the push plate 20 to rotate.

[0030] When the toothed plate 16 rotates, it drives the second fixed rod 12 to rotate, and when the second fixed rod 12 rotates, it drives the crushing rod 10 to rotate.

[0031] In this embodiment: when the motor 6 rotates, it drives the first fixed rod 11 to rotate, and when the first fixed rod 11 rotates, it simultaneously drives the push plate 20 and the second filter plate 22 to rotate.

[0032] Working principle: The forward and reverse rotating motor 15 drives the third fixed rod 14 to rotate. When the third fixed rod 14 rotates, it drives the toothed plate 16 to rotate in a circle. When the toothed plate 16 rotates, it intermittently causes the transmission gear 9 to rotate in its original position through meshing. When the gear 9 rotates, it drives the fourth fixed rod 17 to rotate in its original position. When the fourth fixed rod 17 rotates, it drives the worm 21 to rotate. When the worm 21 rotates, it drives the worm wheel 18 to rotate through meshing. When the worm wheel 18 rotates, it drives the support rod 19 to rotate. When the support rod 19 rotates, it drives the paddle block 5 to move. The forward and reverse rotating motor 15 then rotates in the opposite direction, causing the paddle block 5 to rotate in the opposite direction.

[0033] The motor 6 is started to rotate, and when the motor 6 rotates, it drives the first fixed rod 11 to rotate. When the first fixed rod 11 rotates, it simultaneously drives the push plate 20 and the second filter plate 22 to rotate. The second filter plate 22 rotates on top of the first filter plate 8.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical mill classifier with recyclable material, comprising a body (3), characterized in that, The inner wall of the machine body (3) is provided with an annular groove (13), and the bottom of the annular groove (13) is provided with a groove (7). A forward and reverse rotation motor (15) is installed on the top of the machine body (3). The output end of the forward and reverse rotation motor (15) has a third fixing rod (14). A toothed plate (16) is fixed at the bottom of the third fixing rod (14). A gear (9) is meshed on one side of the toothed plate (16), and the gear (9) is located inside the annular groove (13). A fourth fixing rod (17) is fixed at the bottom of the gear (9), and the fourth fixing rod (17) penetrates into the inside of the groove (7).

2. The recyclable vertical mill classifier according to claim 1, characterized in that, The bottom of the fourth fixed rod (17) is fixed with a worm (21), and the worm (21) is located inside the groove (7). A worm wheel (18) is meshed with one side of the worm (21).

3. The recyclable vertical mill classifier according to claim 2, characterized in that, The worm gear (18) is fixed with support rods (19) on both sides, and a beater (5) is fixed with one side of the support rods (19).

4. The recyclable vertical mill classifier according to claim 1, characterized in that, The bottom of the machine body (3) is fixed with a base (1), a discharge port (2) is fixed on one side of the machine body (3), and a feed port (4) is fixed at one end of the top of the machine body (3).

5. A vertical mill classifier with recyclable material as described in claim 1, characterized in that, The inner wall of the body (3) is fixed with a first filter plate (8), and the beater (5) is located at the bottom of the first filter plate (8).

6. A vertical mill classifier with recyclable material as described in claim 1, characterized in that, The bottom of the toothed plate (16) is fixed with a second fixing rod (12), and crushing rods (10) are fixed on both sides of the second fixing rod (12), and the crushing rods (10) are located on the top of the first filter plate (8).

7. A vertical mill classifier with recyclable material as described in claim 4, characterized in that, A motor (6) is installed at the bottom of the base (1). A first fixing rod (11) is fixed at the output end of the motor (6), and the first fixing rod (11) extends through to the top of the first filter plate (8). A second filter plate (22) is fixed at the top of the first fixing rod (11), and a push plate (20) is fixed on one side of the first fixing rod (11).