Ball milling equipment for cement production

Abstract

The utility model relates to the technical field of ball-milling equipment for cement production, and discloses ball-milling equipment for cement production, which comprises two bearing frames and a cylinder, two sides of the cylinder are provided with end socket covers through fixing bolts, one end of the end socket cover on the same side is rotatably connected with the bearing frames, and the other end of the end socket cover on the same side is rotatably connected with the cylinder. Bearings are installed in the two bearing frames, and a cooling cavity is formed in the outer ring bearing frame of each bearing. According to the cooling device, the cooling cavities are formed in the two bearing frames, then cooling water in the water tank is pumped through the water pump and fed into the cooling cavities through the water inlet pipe to dissipate heat of the bearing frames, the cooling water absorbing heat enters the heat exchanger through the water outlet pipe, and the cooling water subjected to heat exchange treatment through the heat exchanger flows into the water tank again; and therefore, water-cooling heat dissipation can be carried out on the bearing frame, cyclic utilization of water resources is achieved, and waste of the water resources is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of ball mill equipment for cement production, and in particular to a ball mill equipment for cement production. Background Technology

[0002] The ball mill is a commonly used grinding equipment in cement production. It is one of the key pieces of equipment in a cement production line, primarily used to grind materials to the required fineness. The working principle of a ball mill is to achieve grinding by having the rotating cylinder and steel balls (or other grinding media) inside impact and rub against the material.

[0003] Ball mills grind cement by impacting and rubbing the material with steel balls inside a rotating cylinder. The cylinder's rotational motion during operation can generate significant heat in the bearing housing over time. This heat can accelerate the decomposition and evaporation of lubricating grease, reducing its lubricating performance and leading to increased bearing wear. It can also accelerate bearing material fatigue and shorten bearing lifespan.

[0004] Therefore, those skilled in the art have provided a ball mill for cement production to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a ball mill for cement production. This invention utilizes cooling chambers within two bearing supports. Cooling water from a water tank is pumped in through an inlet pipe and fed into the cooling chambers to dissipate heat from the bearing supports. The cooled water, having absorbed heat, flows through an outlet pipe into a heat exchanger. After heat exchange, the cooled water flows back into the water tank, creating a cycle that effectively cools the bearing supports. This system also achieves water recycling, reducing water waste and solving the problems associated with traditional ball mills, which can lead to reduced lubrication performance of the lubricating oil and increased bearing wear, thus shortening bearing lifespan.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A ball mill for cement production includes two bearing frames and a cylinder. Head covers are mounted on both sides of the cylinder via fixing bolts. One end of each head cover on the same side is rotatably connected to a bearing frame. Bearings are installed inside both bearing frames. A cooling chamber is formed inside the outer ring of each bearing frame. An inlet pipe and an outlet pipe are respectively provided at both ends of each cooling chamber. A water tank is installed on one side of each bearing frame. A water pump is connected to one end of each inlet pipe, and a heat exchanger is connected to one end of each outlet pipe. The water pump and heat exchanger on the same side are connected to the water tank.

[0008] The above technical solution involves creating cooling chambers inside the two bearing supports. Cooling water from the water tank is pumped in through the inlet pipe and sent into the cooling chambers to dissipate heat from the bearing supports. The cooled water, having absorbed heat, enters the heat exchanger through the outlet pipe. After heat exchange, the cooled water flows back into the water tank, creating a cycle that effectively cools the bearing supports. This also achieves water resource recycling, reducing water waste and solving the problems of traditional ball mills that may reduce the lubricating performance of the lubricating oil and cause accelerated bearing wear, thus shortening the bearing's lifespan.

[0009] Furthermore, a base is installed on one side of one of the bearing brackets, a drive motor is installed on the top of the base, a reducer is installed at the output end of the drive motor, a small gear is installed at one end of the reducer, and a large gear is welded to one end of the outer side of the cylinder, and the large gear is meshed with the small gear.

[0010] The above technical solution controls the rotation of the pinion by the coordinated operation of the drive motor and the reducer, and controls the rotation of the cylinder by the meshing transmission between the pinion and the large gear.

[0011] Furthermore, an oil tank is installed at one end of the base, an oil pump is installed at the top of the oil tank, an oil drain pipe is installed at one end of the oil pump, and a nozzle is installed at one end of the oil drain pipe;

[0012] The above technical solution involves installing an oil tank at one end of the base, setting an oil pump at the top of the oil tank, installing an oil drain pipe at one end of the oil pump, and installing a nozzle at one end of the oil drain pipe. The oil pump draws lubricating oil from inside the oil tank and sprays it onto the surface of the pinion through the oil drain pipe and nozzle, which can reduce the meshing wear between the large gear and the small gear.

[0013] Furthermore, a bearing cap is installed on one side of each of the two bearing brackets by fixing bolts;

[0014] With the above technical solution, bearing caps are installed on one side of both bearing brackets by fixing bolts, which facilitates the restriction of the bearing position.

[0015] Furthermore, a controller is installed on one side of the oil tank, and the controller is electrically connected to the two heat exchangers, two water pumps, oil pump and drive motor;

[0016] With the above technical solution, a controller is installed on one side of the oil tank. The controller is electrically connected to the two heat exchangers, two water pumps, oil pump and drive motor, so as to facilitate the control of the entire device.

[0017] Furthermore, one end of the head cover on the same side is mounted on the inner wall of the bearing;

[0018] With the above technical solution, one end of the end cap on the same side is installed on the inner wall of the bearing, which facilitates the rotation of the end cap.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model proposes a ball mill for cement production. By opening cooling chambers inside two bearing frames, cooling water is drawn from the water tank by a water pump and sent into the cooling chambers through the inlet pipe to dissipate heat from the bearing frames. The cooled water that has absorbed heat enters the heat exchanger through the outlet pipe. After heat exchange, the cooled water flows back into the water tank, thus circulating and dissipating heat from the bearing frames. This achieves water resource recycling, reduces water waste, and solves the defects of traditional ball mills that may reduce the lubrication performance of lubricating oil and cause accelerated bearing wear and reduced bearing life during operation.

[0021] 2. The ball mill equipment for cement production proposed in this utility model has an oil tank installed at one end of the base, an oil pump installed at the top of the oil tank, an oil discharge pipe installed at one end of the oil pump, and a nozzle installed at one end of the oil discharge pipe. The oil pump draws the lubricating oil from inside the oil tank and sprays it onto the surface of the small gear through the oil discharge pipe and the nozzle, which can reduce the wear of meshing transmission between the large gear and the small gear. Attached Figure Description

[0022] Figure 1 This is a left-side axonometric view of a ball mill for cement production proposed in this utility model;

[0023] Figure 2 This is a right-side axonometric view of a ball mill for cement production proposed in this utility model;

[0024] Figure 3 This is a top view of a ball mill for cement production proposed in this utility model;

[0025] Figure 4 This is a cross-sectional view of a ball mill for cement production proposed in this utility model;

[0026] Figure 5 This is a cross-sectional view of a bearing frame in a ball mill for cement production, as proposed in this utility model.

[0027] Legend:

[0028] 1. Bearing bracket; 2. Cylinder body; 3. End cap; 4. Bearing cover; 5. Bearing; 6. Cooling chamber; 7. Water outlet pipe; 8. Heat exchanger; 9. Water tank; 10. Water pump; 11. Water inlet pipe; 12. Base; 13. Drive motor; 14. Reducer; 15. Pinion gear; 16. Gear; 17. Oil tank; 18. Oil pump; 19. Oil drain pipe; 20. Nozzle; 21. Controller. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Reference Figure 1-5 This utility model provides an embodiment of a ball mill for cement production, comprising two bearing frames 1 and a cylinder 2. Both sides of the cylinder 2 are fitted with end caps 3 via fixing bolts. One end of the end cap 3 on the same side is rotatably connected to the bearing frame 1. Bearings 5 ​​are installed inside each of the two bearing frames 1. A cooling chamber 6 is provided inside the outer ring of each bearing 5 bearing frame 1. Each cooling chamber 6 has an inlet pipe 11 and an outlet pipe 7 at both ends. A water tank 9 is installed on one side of each of the two bearing frames 1. A water pump 10 is connected to one end of each inlet pipe 11, and a heat exchanger 8 is connected to one end of each outlet pipe 7. The water pump 10 and heat exchanger 8 on the same side are connected to each other. The heat exchanger 8 is connected to the water tank 9. Cooling chambers 6 are opened inside the two bearing frames 1. Cooling water is drawn from the water tank 9 by the water pump 10 and sent into the cooling chambers 6 through the inlet pipe 11 to dissipate heat from the bearing frames 1. The cooling water that has absorbed heat enters the heat exchanger 8 through the outlet pipe 7. After heat exchange in the heat exchanger 8, the cooling water flows back into the water tank 9. This cycle can be repeated to cool the bearing frames 1 with water and realize the recycling of water resources, reduce water waste, and solve the defects of traditional ball mills that may reduce the lubrication performance of the lubricating oil and cause the bearings 5 ​​to wear more and reduce the service life of the bearings 5.

[0031] A base 12 is mounted on one side of a bearing bracket 1. A drive motor 13 is mounted on the top of the base 12. A reducer 14 is mounted on the output end of the drive motor 13. A pinion 15 is mounted on one end of the reducer 14. A large gear 16 is welded to one end of the outer side of the cylinder 2. The large gear 16 meshes with the pinion 15. The drive motor 13 and reducer 14 work together to control the rotation of the pinion 15. The meshing transmission between the pinion 15 and the large gear 16 controls the rotation of the cylinder 2. An oil tank 17 is mounted on one end of the base 12. An oil pump 18 is mounted on the top of the oil tank 17. An oil drain pipe 19 is mounted on one end of the oil pump 18. A nozzle 20 is mounted on one end of the oil drain pipe 19. The cylinder 2 rotates through the meshing transmission between the pinion 15 and the large gear 16. Oil pump 18 draws lubricating oil from inside oil tank 17 and sprays it onto the surface of pinion 15 through oil drain pipe 19 and nozzle 20, which can reduce wear in the meshing transmission between large gear 16 and pinion 15. Bearing covers 4 are installed on one side of each of the two bearing brackets 1 by fixing bolts, which facilitates the restriction of the position of bearing 5. Controller 21 is installed on one side of oil tank 17. Controller 21 is electrically connected to the two heat exchangers 8, two water pumps 10, oil pump 18 and drive motor 13, which facilitates the control of the entire device. One end of end cap 3 on the same side is installed on the inner wall of bearing 5, which facilitates the rotation of end cap 3.

[0032] Working principle: Cooling chambers 6 are opened inside the two bearing supports 1. Cooling water is drawn from the water tank 9 by the water pump 10 and sent into the cooling chambers 6 through the inlet pipe 11 to dissipate heat from the bearing supports 1. The cooled water that has absorbed heat enters the heat exchanger 8 through the outlet pipe 7. After heat exchange in the heat exchanger 8, the cooled water flows back into the water tank 9. This cycle allows for water cooling of the bearing supports 1 and achieves water resource recycling, reducing water waste and solving the problem that may occur during the operation of traditional ball mills. The defects that lead to reduced lubrication performance of lubricating oil and accelerated wear of bearing 5, thus reducing the service life of bearing 5, are mitigated by installing an oil tank 17 at one end of the base 12, an oil pump 18 at the top of the oil tank 17, an oil drain pipe 19 at one end of the oil pump 18, and a nozzle 20 at one end of the oil drain pipe 19. The oil pump 18 draws lubricating oil from inside the oil tank 17 and sprays it onto the surface of the pinion 15 through the oil drain pipe 19 and the nozzle 20, thereby reducing the meshing transmission wear between the large gear 16 and the pinion 15.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ball mill for cement production, comprising two bearing frames (1) and a cylinder (2), characterized in that: Both sides of the cylinder (2) are fitted with end caps (3) by fixing bolts. One end of the end cap (3) on the same side is rotatably connected to the bearing frame (1). The two bearing frames (1) are fitted with bearings (5). The outer ring bearing frame (1) of each bearing (5) is provided with a cooling chamber (6). The two ends of each cooling chamber (6) are respectively provided with a water inlet pipe (11) and a water outlet pipe (7). A water tank (9) is installed on one side of each of the two bearing frames (1). A water pump (10) is connected to one end of each water inlet pipe (11). A heat exchanger (8) is connected to one end of each water outlet pipe (7). The water pump (10) and the heat exchanger (8) on the same side are connected to the water tank (9).

2. The ball mill equipment for cement production according to claim 1, characterized in that: A base (12) is installed on one side of the bearing bracket (1), a drive motor (13) is installed on the top of the base (12), a reducer (14) is installed at the output end of the drive motor (13), a pinion (15) is installed at one end of the reducer (14), and a large gear (16) is welded to one end of the outer side of the cylinder (2), and the large gear (16) meshes with the pinion (15).

3. The ball mill equipment for cement production according to claim 2, characterized in that: An oil tank (17) is installed at one end of the base (12), an oil pump (18) is installed at the top of the oil tank (17), an oil drain pipe (19) is installed at one end of the oil pump (18), and a nozzle (20) is installed at one end of the oil drain pipe (19).

4. The ball mill equipment for cement production according to claim 1, characterized in that: Each of the two bearing brackets (1) has a bearing cap (4) installed on one side by fixing bolts.

5. A ball mill for cement production according to claim 3, characterized in that: A controller (21) is installed on one side of the oil tank (17), and the controller (21) is electrically connected to two heat exchangers (8), two water pumps (10), an oil pump (18) and a drive motor (13).

6. The ball mill equipment for cement production according to claim 1, characterized in that: One end of the head cover (3) on the same side is mounted on the inner wall of the bearing (5).

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