Low-energy-consumption ball mill for cement grinding

Abstract

The utility model relates to the technical field of ball mills, in particular to a low-energy-consumption ball mill for cement grinding, which comprises a ball mill body with a positioning opening on the surface, a retaining ring arranged in the ball mill body, a sealing plate arranged on the surface of the retaining ring, a support plate arranged on the surface of the retaining ring, a bottom plate arranged on the end face of the support plate, and a mounting plate arranged on the surface of the bottom plate. A fixed plate is arranged on the surface of the baffle, a shifting piece is arranged on the surface of the baffle, and a threaded groove is formed in the side face of the fixed plate; the ball mill has the beneficial effects that when the material blocking ring is seriously abraded during use, the sealing plate can be taken out from the ball mill body firstly, so that the material blocking ring can be directly taken out, then the seriously abraded baffles can be replaced, the baffles can be conveniently and specifically replaced by arranging the multiple sets of baffles, and therefore the situation that all equipment needs to be replaced is avoided; and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of ball mills, specifically a low-energy ball mill for cement grinding. Background Technology

[0002] Ball mills are key pieces of equipment for further pulverizing materials after they have been crushed. This type of grinding mill uses a certain number of steel balls as grinding media inside its cylinder. It is widely used in industries such as cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal ore beneficiation, and glass and ceramics production. It performs dry or wet grinding of various ores and other grindable materials. Ball mills are suitable for grinding various ores and other materials and are widely used in mineral processing, building materials, and chemical industries.

[0003] Chinese patent CN213996119U discloses an energy-saving ball mill, including a base. A control box and two supports are fixedly connected to the top of the base. An operation panel is fixedly installed on the top of the control box. An energy-saving device and a power frequency bypass contactor are fixedly installed inside the control box. This energy-saving ball mill is equipped with an energy-saving device, a power frequency bypass contactor, and a signal transmitter. In use, a heavy-duty frequency converter is used to configure a frequency modulation and power frequency drive system. The starting current is changed according to energy consumption, eliminating the impact during startup and extending the service life of machine shafts and other components. The signal transmitter enables remote control and local control modes, facilitating remote control to understand the machine's performance. The energy-saving device system can serve as a backup frequency converter for each other. By using the energy-saving device and the power frequency bypass contactor, the starting current can be reduced after starting energy-saving speed regulation.

[0004] In the above technical solution, the equipment will not impact the power grid or cause a drop in grid voltage, and will eliminate the tripping or failure of other electrical equipment caused by the start-up of the ball mill. However, the existing ball mill's baffle ring is severely worn, which causes the material inside the mill to flow unequally, affecting the mill's hourly output and increasing the energy consumption per ton of cement. The replacement process requires the complete removal of the mill's second chamber liner and the replacement of the baffle ring, which involves a large workload and high maintenance costs. Therefore, this utility model proposes a low-energy ball mill for cement grinding to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a low-energy ball mill for cement grinding, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-energy-consumption cement grinding ball mill, the low-energy-consumption cement grinding ball mill comprising: a ball mill body, a positioning port being provided on the surface of the ball mill body, a baffle ring being provided inside the ball mill body, a sealing plate being provided on the surface of the baffle ring, a support plate being provided on the surface of the baffle ring, a bottom plate being provided on the end face of the support plate, and an mounting plate being provided on the surface of the bottom plate;

[0007] A baffle is provided with a fixing plate on its surface, a paddle is provided on the surface of the baffle, and a threaded groove is provided on the side of the fixing plate.

[0008] Preferably, the sealing plate has an overall arc-shaped plate structure, and the sealing plate and the retaining ring are fixed with bolts. The sealing plate is fixed in the positioning port by the limiting bolts, and the sealing plate seals the positioning port.

[0009] Preferably, the surface of the baffle ring is provided with a placement groove, and the surface of the placement groove is provided with a fixing rod. Multiple sets of fixing rods are provided, and all sets are fixedly connected in the placement groove.

[0010] Preferably, the baffle surface has a through hole, the lever has a square plate structure, the lever surface is provided with a threaded rod, the threaded rod passes through the through hole on the baffle surface, and a positioning nut is screwed onto the surface of the threaded rod.

[0011] Preferably, a positioning bolt is inserted into the mounting plate, one end of the positioning bolt passes through the fixing plate, and a fixing nut is screwed onto the surface of the positioning bolt.

[0012] Preferably, the threaded groove has an annular plate-like structure, and a positioning screw is screwed into the threaded groove. A limit ring is provided on the end face of the positioning screw, and the limit ring limits the surface of the fixing nut.

[0013] Preferably, the baffle has a first hole on its surface, through which the baffle can be fitted onto the fixing rod, and the baffle as a whole has a fan-shaped plate structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The low-energy cement grinding ball mill proposed in this utility model allows for easy removal of the sealing plate from the ball mill body when the baffle ring is severely worn. This allows for direct removal of the baffle ring, and then replacement of the severely worn baffle. The multiple sets of baffles facilitate targeted replacement, thus avoiding the need to replace the entire equipment and reducing costs. Attached Figure Description

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

[0017] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the material retaining ring and baffle structure of this utility model;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of this utility model after a set of baffles has been removed;

[0021] Figure 6 This is a practical drawing of the structural baffle of this utility model.

[0022] In the diagram: 1. Ball mill body; 2. Positioning port; 3. Material retaining ring; 4. Sealing plate; 5. Baffle; 6. Fixing plate; 7. Paddle; 8. Threaded groove; 9. Support plate; 10. Base plate; 11. Mounting plate; 12. Placement groove; 13. Fixing rod; 14. Threaded rod; 15. Positioning nut; 16. Positioning bolt; 17. Fixing nut; 18. Positioning screw tube; 19. Limiting ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1: Please refer to Figures 1-6 This utility model provides a technical solution: a low-energy-consumption cement grinding ball mill, the low-energy-consumption cement grinding ball mill includes: a ball mill body 1, a positioning port 2 is opened on the surface of the ball mill body 1, a baffle ring 3 is provided inside the ball mill body 1, a sealing plate 4 is provided on the surface of the baffle ring 3, a support plate 9 is provided on the surface of the baffle ring 3, a bottom plate 10 is provided on the end face of the support plate 9, and an mounting plate 11 is provided on the surface of the bottom plate 10;

[0025] A baffle 5, a fixing plate 6 is provided on the surface of the baffle 5, a paddle 7 is provided on the surface of the baffle 5, and a threaded groove 8 is provided on the side of the fixing plate 6.

[0026] When the baffle ring 3 is severely worn, the sealing plate 4 can be removed from the ball mill body 1 first, and then the baffle ring 3 can be removed directly. Then the severely worn baffle 5 can be replaced. Since multiple sets of baffle 5 are provided, the baffle 5 can be replaced in a convenient way, thereby avoiding the need to replace the entire equipment and reducing costs.

[0027] Example 2: Based on Example 1, a sealing plate 4 is provided to facilitate the removal of the retaining ring 3. The sealing plate 4 has an arc-shaped plate structure. The sealing plate 4 and the retaining ring 3 are fixed with bolts. The sealing plate 4 is fixed in the positioning port 2 by the limiting bolts. The sealing plate 4 seals the positioning port 2. The surface of the retaining ring 3 is provided with a placement groove 12. The surface of the placement groove 12 is provided with a fixing rod 13. Multiple sets of fixing rods 13 are provided, and multiple sets are fixedly connected in the placement groove 12. A positioning bolt 16 is inserted into the mounting plate 11. One end of the positioning bolt 16 passes through the fixing plate 6. A fixing nut 17 is screwed onto the surface of the positioning bolt 16.

[0028] When in use, first rotate the limiting bolt inside the sealing plate 4 to remove the sealing plate 4 directly from the positioning port 2, and then the baffle ring 3 can be taken out. When it is necessary to replace the baffle 5 with severe wear, the positioning bolt 16 can be removed, and the baffle 5 can be pulled out from the fixing rod 13, so that the baffle 5 can be replaced. There are multiple sets of baffle 5, which makes it convenient to replace the severely worn ones without replacing the entire equipment, thus reducing costs and making it more convenient.

[0029] Example 3: Based on Example 2, a lever 7 is provided to facilitate the use of the baffle 5. The surface of the baffle 5 has a through hole. The lever 7 has a square plate structure. A threaded rod 14 is provided on the surface of the lever 7. The threaded rod 14 passes through the through hole on the surface of the baffle 5. A positioning nut 15 is screwed onto the surface of the threaded rod 14. The threaded groove 8 has an annular plate structure. A positioning screw tube 18 is screwed into the threaded groove 8. A limit ring 19 is provided on the end face of the positioning screw tube 18. The limit ring 19 limits the surface of the fixing nut 17. The surface of the baffle 5 has a first hole. The baffle 5 can be sleeved on the fixing rod 13 through the first hole. The baffle 5 has a fan-shaped plate structure as a whole.

[0030] During use, the steel balls inside the ball mill body 1 can be further rotated by the paddle 7. When some paddles 7 are damaged and need to be replaced, the positioning nut 15 can be screwed out from the threaded rod 14, so that the paddle 7 can be pulled out from the baffle 5 for replacement. The positioning screw tube 18 can be screwed into the threaded groove 8 in conjunction with the limiting ring 19 to abut against the surface of the fixing nut 17 to prevent loosening. The surface of the threaded groove 8 is left-hand thread, and the surface of the positioning bolt 16 is right-hand thread.

[0031] 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 low-energy ball mill for cement grinding, characterized in that: The low-energy cement grinding ball mill includes: a ball mill body (1), a positioning port (2) is provided on the surface of the ball mill body (1), a baffle ring (3) is provided inside the ball mill body (1), a sealing plate (4) is provided on the surface of the baffle ring (3), a support plate (9) is provided on the surface of the baffle ring (3), a bottom plate (10) is provided on the end face of the support plate (9), and an mounting plate (11) is provided on the surface of the bottom plate (10). A baffle (5) is provided with a fixing plate (6) on its surface, a paddle (7) is provided on the surface of the baffle (5), and a threaded groove (8) is provided on the side of the fixing plate (6). A positioning bolt (16) is inserted into the mounting plate (11). One end of the positioning bolt (16) passes through the fixing plate (6), and a fixing nut (17) is screwed onto the surface of the positioning bolt (16). The threaded groove (8) has an annular plate structure. A positioning screw tube (18) is screwed into the threaded groove (8). A limit ring (19) is provided on the end face of the positioning screw tube (18). The limit ring (19) limits the surface of the fixing nut (17).

2. The ball mill for low-energy cement grinding according to claim 1, characterized in that: The sealing plate (4) has an arc-shaped plate structure. The sealing plate (4) and the baffle ring (3) are fixed with bolts. The sealing plate (4) is fixed in the positioning port (2) by the limiting bolts. The sealing plate (4) seals the positioning port (2).

3. The ball mill for low-energy cement grinding according to claim 1, characterized in that: The baffle ring (3) has a placement groove (12) on its surface. The placement groove (12) is provided with a fixing rod (13). There are multiple sets of fixing rods (13), and all sets are fixedly connected in the placement groove (12).

4. A low-energy ball mill for cement grinding according to claim 1, characterized in that: The baffle (5) has a through hole on its surface. The lever (7) has a square plate structure. The lever (7) has a threaded rod (14) on its surface. The threaded rod (14) passes through the through hole on the surface of the baffle (5). A positioning nut (15) is screwed onto the surface of the threaded rod (14).

5. A low-energy ball mill for cement grinding according to claim 1, characterized in that: The baffle (5) has a first hole on its surface. The baffle (5) can be sleeved on the fixed rod (13) through the first hole. The baffle (5) has a fan-shaped plate structure.

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