Cement raw material tube mill

Abstract

The utility model relates to cement processing equipment technical field discloses a kind of cement raw material tube mills, including cylinder, the inside of cylinder is provided with grading pipe body, the inner wall of grading pipe body is provided with primary grinding area, fine grinding area and final grinding area, the inside of primary grinding area, fine grinding area and final grinding area is provided with placing frame, the outer surface of placing frame is provided with slot, the inner wall of slot is inserted with screen rack, the outer surface of screen rack is provided with connecting hole.The utility model has following advantages and effects: different regions fill different specifications and material's grinding body, primary grinding area uses large diameter high hardness steel ball, for crushing larger granular material, fine grinding area uses medium size steel section, further grinding to material, final grinding area is configured small diameter ceramic grinding body, the fineness of finished product material is improved, adjustable placing frame is installed between each area.

Description

Technical Field

[0001] This utility model relates to the field of cement processing equipment technology, and in particular to a cement raw material tube mill. Background Technology

[0002] The main working part of a ball mill for grinding materials occurs on the horizontally rotating, low-speed cylinder. When the cylinder is driven to rotate by the transmission device, the grinding media, due to inertial centrifugal force, adhere to the liner surface of the inner wall of the mill cylinder and rotate with it. After being carried to a certain height, they fall freely under gravity. At this time, the grinding media crushes the material inside the cylinder. Simultaneously, in addition to the upward and downward cyclical motion of the grinding media within the rotating mill, sliding and rolling also occur, resulting in a grinding action between the grinding media, the liner, and the material being ground, thus finening the material. While the material is being impacted, crushed, and ground, the height difference between the material surface at the feed end and the discharge end causes the material to flow slowly from the feed end to the discharge end, completing the grinding operation.

[0003] According to Chinese Patent Publication No. CN217288663U, a cement tube mill is disclosed, relating to the technical field of cement processing equipment. It comprises: a tube body; a compartment support installed inside the tube body, dividing the tube body into a first compartment and a second compartment; a grate plate installed on the compartment support; a first corrugated liner plate disposed on the inner wall of the second compartment, the second corrugated liner plate having 5 corrugations; a second corrugated liner plate disposed on the inner wall of the first compartment, the second corrugated liner plate having 4 corrugations; a discharge frame grate plate disposed on the discharge end of the tube body; and a discharge screen plate installed on the discharge frame grate plate. This design improves ventilation within the mill, solves the problem of severe grate clogging (including clogging by broken steel balls), increases material flow rate, solves the problems of material return to the mill head and mill encapsulation, and reduces the mill's energy consumption.

[0004] The aforementioned patent has the effect of solving the problems of material return and grinding in the grinding head. However, traditional tube mills use a single specification of grinding media, which is difficult to adapt to cement raw materials with different particle sizes and hardness. This results in insufficient grinding of materials in the mill, making maintenance difficult. When replacing internal components such as liners and grinding media, manual operation is required to enter the narrow cylinder, which is labor-intensive and time-consuming. Utility Model Content

[0005] The purpose of this invention is to provide a cement raw material tube mill that improves grinding efficiency and enhances control and regulation.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A cement raw material tube mill includes a cylinder, inside which a grading tube is arranged. The inner wall of the grading tube is provided with a primary grinding zone, a fine grinding zone, and a final grinding zone. A placement frame is arranged inside the primary grinding zone, the fine grinding zone, and the final grinding zone. A slot is formed on the outer surface of the placement frame, and a screen frame is inserted into the inner wall of the slot. A connecting hole is formed on the outer surface of the screen frame, and an opening is formed on the outer surface of the placement frame. A fixed connecting rod is threadedly connected to the inner wall of the opening. The outer surface of the fixed connecting rod is threaded to the inner wall of the connecting hole through the through hole. Different areas are filled with grinding media of different specifications and materials. The primary grinding zone uses large-diameter, high-hardness steel balls to crush larger particles. The fine grinding zone uses medium-sized steel segments to further grind the material. The final grinding zone is equipped with small-diameter ceramic grinding media to improve the fineness of the finished product. An adjustable placement frame is installed between each zone. The partition is equipped with screen frames with different apertures. The apertures of the placement frame and screen frames can be adjusted according to the material characteristics and finished product requirements to achieve dynamic grading and efficient utilization of the grinding media.

[0007] A further feature of this invention is that the outer surface of the cylinder is provided with a feed inlet and a discharge outlet, and the outer surfaces of the feed inlet and the discharge outlet are respectively provided with an air inlet and an air outlet. By providing the air inlet and the air outlet, the airflow of the internal device is enhanced.

[0008] A further feature of this invention is that: the inner wall of the air inlet is provided with guide vanes, the outer surface of the air outlet is connected to a negative pressure fan, the guide vanes are installed at the air inlet to make the airflow entering the mill evenly distributed, the air outlet is connected to a negative pressure fan, and the internal pressure of the mill is monitored by a pressure sensor.

[0009] A further feature of this invention is that a collar is fitted onto the outer surface of the cylinder, and a gear collar is fixedly connected to the outer surface of the cylinder. The gear collar facilitates the control of the overall device for operation and adjustment, thereby improving flexibility.

[0010] A further feature of this invention is that a first placement bracket is fixedly connected to the outer surface of the collar, and the first placement bracket strengthens the fixation and support of the collar.

[0011] A further feature of this invention is that the inner wall of the collar is provided with several sliding beads, which facilitates the rotation of the cylinder without affecting it.

[0012] A further feature of this invention is that a motor is fixedly connected to the top of the first placement bracket, a rotating shaft is fixedly connected to the output end of the motor, and a gear is fixedly connected to the other end of the rotating shaft. The outer surface of the gear meshes with the outer surface of the gear collar. The first placement bracket strengthens the fixation and connection of the motor. The operator drives the motor through a controller to control the rotation of the rotating shaft, thereby engaging the outer surface of the gear with the outer surface of the gear collar, causing the rotation of the gear to drive the cylinder on the gear collar to rotate, thus enhancing the use and filtration.

[0013] A further feature of this invention is that a second placement bracket is fixedly connected to the bottom of the screen frame, and a second motor is fixedly connected to the bottom of the second placement bracket, thereby strengthening the fixation and connection of the second motor.

[0014] A further feature of this invention is that: a second rotating shaft is fixedly connected to the output end of the second motor, and a control rod is fixedly connected to the bottom end of the second rotating shaft; the operator drives the second motor to control the rotation of the second rotating shaft, which in turn drives the control rod to rotate.

[0015] A further feature of this invention is that a textured ball is fixedly connected to the other end of the control lever, and the textured ball is driven to rotate by the control lever, thereby enhancing the vibration efficiency.

[0016] The beneficial effects of this utility model are: 1. This utility model, through the coordinated arrangement of the cylinder, grading tube, primary grinding zone, fine grinding zone, final grinding zone, placement frame, slot, screen frame, connecting hole, opening, and fixed connecting rod, enables the device to be filled with grinding media of different specifications and materials in different areas during use. The primary grinding zone uses large-diameter, high-hardness steel balls for crushing larger particles. The fine grinding zone uses medium-sized steel segments for further grinding of materials. The final grinding zone is equipped with small-diameter ceramic grinding media to improve the fineness of the finished product. An adjustable placement frame is installed between each zone, and the partition is equipped with screen frames of different apertures. The apertures of the placement frame and screen frames can be adjusted according to the material characteristics and finished product requirements to achieve dynamic grading and efficient utilization of the grinding media. By setting air inlets and outlets, the airflow of the internal device is enhanced.

[0017] 2. This utility model, through the coordinated arrangement of the motor, rotating shaft, second placement bracket, second motor, second rotating shaft, control rod, and textured ball, enables the device to have guide vanes installed at the air inlet to ensure uniform airflow distribution into the mill during use. The air outlet is connected to a negative pressure fan, and the internal pressure of the mill is monitored by a pressure sensor. The operator drives the motor to control the rotation of the rotating shaft through the controller, thereby engaging the outer surface of the gear with the outer surface of the gear collar. The rotation of the gear drives the cylinder on the gear collar to rotate, enhancing the use and filtration. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the first placement bracket structure of this utility model; Figure 3 This is a schematic diagram of the collar structure of this utility model; Figure 4 This is a schematic diagram of the placement frame structure of this utility model.

[0020] In the diagram, 1. Cylinder; 2. Grading tube; 3. Primary grinding zone; 4. Fine grinding zone; 5. Final grinding zone; 6. Placement frame; 7. Grooving; 8. Screen frame; 9. Connecting hole; 10. Opening; 11. Fixed connecting rod; 12. Feed inlet; 13. Discharge outlet; 14. Air inlet; 15. Air outlet; 16. Guide vane; 17. Negative pressure fan; 18. Collar; 19. Gear collar; 20. First placement bracket; 21. Sliding ball; 22. Motor; 23. Rotating shaft; 24. Second placement bracket; 25. Second motor; 26. Second rotating shaft; 27. Control lever; 28. Textured ball; 29. ​​Gear. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Reference Figure 1-4A cement raw material tube mill includes a cylinder 1. A grading tube 2 is arranged inside the cylinder 1. The inner wall of the grading tube 2 is provided with a primary grinding zone 3, a fine grinding zone 4, and a final grinding zone 5. A placement frame 6 is arranged inside the primary grinding zone 3, the fine grinding zone 4, and the final grinding zone 5. A slot 7 is formed on the outer surface of the placement frame 6. A screen frame 8 is inserted into the inner wall of the slot 7. A connecting hole 9 is formed on the outer surface of the screen frame 8. An opening 10 is formed on the outer surface of the placement frame 6. A fixed connecting rod 11 is threadedly connected to the inner wall of the opening 10. The outer surface of the fixed connecting rod 11 passes through the opening 10 and is threadedly connected to the inner wall of the connecting hole 9. A feed inlet 12 and a discharge outlet 13 are provided on the outer surface of the feed inlet 12 and the discharge outlet 13, respectively. An air inlet 14 and an air outlet 15 are respectively provided on the outer surface of the air inlet 14. A guide vane 16 is provided on the inner wall of the air inlet 14. The outer surface of the air outlet 15 is connected to the negative pressure fan 17. The outer surface of the cylinder 1 is fitted with a collar 18. The outer surface of the cylinder 1 is fixedly connected with a gear collar 19. The outer surface of the collar 18 is fixedly connected with a first placement bracket 20. The inner wall of the collar 18 is provided with a sliding ball 21. The top of the first placement bracket 20 is fixedly connected with a motor 22. The output end of the motor 22 is fixedly connected with a rotating shaft 23. The other end of the rotating shaft 23 is fixedly connected with a gear 29. The outer surface of the gear 29 meshes with the outer surface of the gear collar 19. The bottom of the screen frame 8 is fixedly connected with a second placement bracket 24. The bottom of the second placement bracket 24 is fixedly connected with a second motor 25. The output end of the second motor 25 is fixedly connected with a second rotating shaft 26. The bottom end of the second rotating shaft 26 is fixedly connected with a control rod 27. The other end of the control rod 27 is fixedly connected with a textured ball 28.

[0023] In this invention, different areas are filled with grinding media of different specifications and materials. The primary grinding zone 3 uses large-diameter, high-hardness steel balls to crush larger particles. The fine grinding zone 4 uses medium-sized steel segments to further grind the material. The final grinding zone 5 is equipped with small-diameter ceramic grinding media to improve the fineness of the finished product. An adjustable placement frame 6 is installed between each zone, and the partition is equipped with screen frames 8 with different apertures. The apertures of the placement frame 6 and screen frames 8 can be adjusted according to the material characteristics and finished product requirements to achieve dynamic grading and efficient utilization of the grinding media. By setting an air inlet 14 and an air outlet 15, the airflow of the internal device is enhanced. A guide vane 16 is installed at the air inlet 14 to ensure uniform distribution of the airflow entering the mill. The air outlet 15 is connected to a negative pressure fan 17. The internal pressure of the mill is monitored by a pressure sensor. The operator drives the motor 22 through the controller to control the rotation of the shaft 23, thereby engaging the outer surface of the gear 29 with the outer surface of the gear collar 19. The rotation of the gear 29 drives the cylinder 1 on the gear collar 19 to rotate, enhancing the use and filtration.

[0024] 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 cement raw material tube mill, comprising a cylinder (1), characterized in that: The cylinder (1) is provided with a graded tube (2) inside. The inner wall of the graded tube (2) is provided with a primary grinding zone (3), a fine grinding zone (4) and a final grinding zone (5). The primary grinding zone (3), the fine grinding zone (4) and the final grinding zone (5) are provided with a placement frame (6). The outer surface of the placement frame (6) is provided with a slot (7). The inner wall of the slot (7) is connected to a screen frame (8). The outer surface of the screen frame (8) is provided with a connecting hole (9). The outer surface of the placement frame (6) is provided with an opening (10). The inner wall of the opening (10) is threaded with a fixed connecting rod (11). The outer surface of the fixed connecting rod (11) passes through the opening (10) and is threaded to the inner wall of the connecting hole (9).

2. A cement raw material tube mill according to claim 1, characterized in that: The outer surface of the cylinder (1) is provided with a feed inlet (12) and a discharge outlet (13), and the outer surfaces of the feed inlet (12) and the discharge outlet (13) are respectively provided with an air inlet (14) and an air outlet (15).

3. A cement raw material tube mill according to claim 2, characterized in that: The inner wall of the air inlet (14) is provided with guide vanes (16), and the outer surface of the air outlet (15) is connected to a negative pressure fan (17).

4. A cement raw material tube mill according to claim 3, characterized in that: A collar (18) is sleeved on the outer surface of the cylinder (1), and a gear collar (19) is fixedly connected to the outer surface of the cylinder (1).

5. A cement raw material tube mill according to claim 4, characterized in that: The outer surface of the collar (18) is fixedly connected to the first placement bracket (20).

6. A cement raw material tube mill according to claim 5, characterized in that: The inner wall of the collar (18) is provided with a slip ball (21).

7. A cement raw material tube mill according to claim 6, characterized in that: A motor (22) is fixedly connected to the top of the first placement bracket (20). A rotating shaft (23) is fixedly connected to the output end of the motor (22). A gear (29) is fixedly connected to the other end of the rotating shaft (23). The outer surface of the gear (29) meshes with the outer surface of the gear collar (19).

8. A cement raw material tube mill according to claim 7, characterized in that: The bottom of the screen frame (8) is fixedly connected to a second placement bracket (24), and the bottom of the second placement bracket (24) is fixedly connected to a second motor (25).

9. A cement raw material tube mill according to claim 8, characterized in that: The output end of the second motor (25) is fixedly connected to the second rotating shaft (26), and the bottom end of the second rotating shaft (26) is fixedly connected to the control rotating rod (27).

10. A cement raw material tube mill according to claim 9, characterized in that: The other end of the control lever (27) is fixedly connected to a textured ball (28).

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