A cage for a ball mill

Abstract

The utility model belongs to the technical field of ball mill, concretely relates to a ball mill is with the compartment board, including main frame and grate plate, grate plate fixed mounting is in main frame, is set with a plurality of grate seams on the grate plate, the inclination angle of grate seam is 40 ~ 50 DEG, and the grate seam is inclined to set and the inclination angle of grate seam is 40 ~ 50 DEG, and the grate seam is set to several groups along one end of the grate plate to the other end, and each group of grate seam includes two rows of grate seams, and the inclination direction of the same row grate seam is same, and the inclination direction of two rows of grate seams of each group is opposite. The utility model is set with a plurality of groups of grate seams on the compartment board, and the grate seam is inclined to set, and the inclination direction of two rows of grate seams in each group of grate seam is opposite, and the grate seam is staggered to set, can make the vertical self-cleaning material of grate seam on multiple angles, realizes material fast through, prevents material from plugging at the compartment board, and has improved the grinding rate of ball mill.

Description

Technical Field

[0001] This utility model belongs to the field of ball mill technology, specifically relating to a partition plate for a ball mill. Background Technology

[0002] Ball mills are crucial equipment for further pulverizing materials after they have been crushed. The baffle plates in ball mills act as screens to prevent excessively large particles from entering the finer grinding chamber where the impact force is weaker. Otherwise, the accumulation of uncrushed particles would severely affect the grinding effect. Existing baffle plates have small ventilation areas and are prone to clogging, seriously affecting the ventilation effect inside the mill and the material throughput speed, and are no longer suitable for the current grinding requirements of ball mills. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a partition plate for a ball mill that is less prone to material blockage and improves the grinding efficiency of the ball mill.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a partition plate for a ball mill, comprising a main frame and a grate plate. The grate plate is fixedly installed on the main frame. Several grate slots are provided on the grate plate. The grate slots are inclined and the inclination angle of the grate slots is 40°~50°. The grate slots are arranged in several groups at intervals from one end of the grate plate to the other end. Each group of grate slots includes two rows of grate slots. The inclination direction of the same row of grate slots is the same, and the inclination direction of the two rows of grate slots in each group is opposite.

[0005] Preferably, the inclination angle of the grate slot is 45°.

[0006] Preferably, in two adjacent sets of the gratings, the inclination directions of the two adjacent rows of gratings are the same.

[0007] Preferably, a fixing strip is provided between each group of grate slots, and the fixing strip is integrally formed with the main frame. The grate is fixedly connected to both the main frame and the fixing strip.

[0008] Preferably, the main frame includes an arc plate and connecting plates on both sides of the arc plate, and the grate is fan-shaped and fixedly installed inside the main frame.

[0009] Preferably, a return port is provided on the inner side of the grate plate on the main frame.

[0010] Preferably, a connecting boss is provided on the connecting plate, the connecting boss protruding along the length direction of the connecting plate, and the height of the connecting boss is less than the height of the connecting plate.

[0011] Preferably, the main frame and the grate are connected by bolts and fixed by nuts.

[0012] Preferably, the width of the grate slot is 3mm to 7mm.

[0013] Compared with existing technologies, the above technical solution has the following beneficial effects: 1. The partition plate of this utility model is provided with several sets of grate slots. The grate slots are inclined, and the two rows of grate slots in each set are inclined in opposite directions. The grate slots are staggered, which can make the grate slots form vertical self-cleaning at multiple angles, realize the rapid passage of materials, prevent materials from clogging at the partition plate, and improve the grinding rate of the ball mill.

[0014] 2. A return port is set on the inner side of the partition plate. If the material entering the partition plate cannot pass through the partition plate, it can re-enter the first chamber of the ball mill through the return port for re-grinding, thus avoiding the accumulation of large particles between the partition plates. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a structural schematic diagram of the partition plate assembly.

[0017] Figure 3 This is a schematic diagram showing the connection between adjacent partition plates.

[0018] Figure 4 This is a schematic diagram of the components of the compartment plate assembly.

[0019] Among them: 1. Main frame 101, arc plate 102, connecting plate 2, grate plate 3, grate seam 4, fixing strip 5, return port 6, partition plate 7, ventilation hole 8, connecting boss 9, countersunk hole 10, first compartment partition plate 11, second compartment partition plate 12, support pipe 13, pressure plate. Detailed Implementation

[0020] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0021] like Figure 1 As shown, this utility model discloses a diaphragm plate for a ball mill, comprising a main frame 1 and a grate plate 2. The grate plate 2 is fixedly installed on the main frame 1. In this embodiment, the grate plate 2 is a 6mm thick manganese steel plate. Several grate slots 3 are provided on the grate plate 2. The grate slots 3 are wedge-shaped and are directly cut from the manganese steel plate. The grate slots 3 are inclined with an inclination angle of 40°~50°. The grate slots 3 are arranged in several groups along one end of the grate plate 2 to the other end. Each group of grate slots 3 includes two rows of grate slots 3. The inclination direction of the same row of grate slots 3 is the same. The inclination directions of the two rows of grate slots 3 in each group are opposite. The grate slots 3 are staggered, which allows the grate slots 3 to form vertical self-cleaning at multiple angles, realizing the rapid passage of materials.

[0022] In this embodiment, the inclination angle of the grate slit 3 is 45°. The inclination angle and inclination direction of the same row of grate slits 3 are the same. In two adjacent groups of grate slits 3, the inclination direction of the two adjacent rows of grate slits 3 is the same. The width of the grate slit 3 is 3mm~7mm.

[0023] In this embodiment, the main frame 1 includes an arc plate 101 and connecting plates 102 on both sides of the arc plate 101. The connecting plates 102 are connected to one side of the center of the arc plate 101. The grate 2 is fan-shaped and is fixedly installed inside the main frame 1. Through holes are correspondingly opened on the main frame 1 and the grate 2. The main frame 1 and the grate 2 are connected by bolts and fixed with nuts. A fixing strip 4 is provided between each set of grate seams 3. The fixing strip 4 is integrally formed with the main frame 1. The two ends of the fixing strip 4 are respectively connected to the two connecting plates 102 on both sides. The fixing strip 4 is also arc-shaped. Each fixing strip 4 and the arc plate 101 are arranged with the same center. The grate 2 is also fixedly connected to the fixing strip 4 by bolts and nuts.

[0024] A return port 5 is provided on the inner side of the grate plate 2 on the main frame 1. The return port 5 is located on the center side of the fan-shaped grate plate 2. If the material entering the partition plate 6 cannot pass through the partition plate 6, it can re-enter the first chamber of the ball mill through the return port 5 for re-grinding.

[0025] A connecting boss 8 is provided on the connecting plate 102. The connecting boss 8 protrudes along the length of the connecting plate 102. The height of the connecting boss 8 is less than the height of the connecting plate 102. The two compartment plates 6 can be fixedly connected by the connecting boss 8.

[0026] like Figure 2 As shown, a diaphragm plate assembly for a ball mill includes several diaphragm plates 6 connected in sequence. The several diaphragm plates 6 are connected and spliced ​​into a circular diaphragm plate assembly. The diaphragm plate assembly is installed inside the ball mill. Several ventilation holes 7 are opened at the center of the diaphragm plate assembly to increase the ventilation volume and effectively increase the ventilation area of ​​the diaphragm plates 6, ensuring the material flow rate. The return port 5 is located outside the ventilation holes 7.

[0027] like Figure 3 As shown, in this embodiment, the compartment plate assembly is composed of 16 identical fan-shaped compartment plates 6 evenly distributed around the center. Each compartment plate is connected by a connecting boss 8 to prevent grinding media from flowing through the joints and affecting the grinding media gradation. Specifically, the connecting bosses 8 at the joints of two adjacent compartment plates 6 are staggered and are respectively located on one side and the other side of the compartment plate 6. The two sides of the two connected compartment plates 6 are flush. Through holes are provided on the two connecting bosses 8. Bolts pass through the through holes of the two connecting bosses 8 and are finally fixed by nuts. Countersunk holes 9 are provided at the bolt heads.

[0028] like Figure 4 A partition plate structure for a ball mill includes a main frame 1 and two layers of grate plates 2 spaced apart. The two layers of grate plates 2 are fixedly installed on the main frame 1 at intervals. The first partition plate 10 is located close to the first compartment of the ball mill, and the second partition plate 11 is located close to the second compartment of the ball mill. After the material is ground in the first compartment of the ball mill, it enters the second compartment through the partition plate structure and is ground into smaller particles in the second compartment. Both the first partition plate 10 and the second partition plate 11 are composed of 16 partition plates spliced ​​together.

[0029] Through holes are provided on the main frame 1, the first compartment partition plate 10, and the second compartment partition plate 11. Bolts are first passed through the main frame 1 and the first compartment partition plate 10 in sequence. Then, a support tube 12 is sleeved on the end of the bolt. One end of the support tube 12 is pressed against the first compartment partition plate 10. Then the bolt is passed through the second compartment partition plate 11. The other end of the support tube 12 is pressed against the second compartment partition plate 11, so that there is a gap between the first compartment partition plate 10 and the second compartment partition plate 11. Finally, a pressure plate 13 is set on the other side of the second compartment partition plate 11 and fixed with a nut, thereby fixing the main frame 1, the first compartment partition plate 10, and the second compartment partition plate 11 together.

[0030] The first compartment partition plate 10 has a ventilation hole 7 and a return port 5 in the middle, while the second compartment partition plate 11 only has a ventilation hole 7 in the middle. In this embodiment, the width of the grate slit 3 on the first compartment partition plate 10 is 6mm, and the width of the grate slit 3 on the second compartment partition plate 11 is 4mm.

[0031] In use, the material in the first chamber, after being ground, enters the space between the first chamber partition plate 10 and the second chamber partition plate 11 through the grate slits 3. The ground small particles continue to enter the second chamber through the grate slits 3 of the second chamber partition plate 11. However, the large particles that are not ground properly will return to the first chamber for grinding through the return port 5, thus preventing large particles from accumulating between the partition plates. In addition, the partition plate 6 in this invention is provided with several sets of inclined grate slits 3. The two rows of grate slits 3 in each set of grate slits 3 are inclined in opposite directions. The grate slits 3 are staggered, which can make the grate slits 3 form vertical self-cleaning at multiple angles, realize the rapid passage of materials, prevent the materials from clogging at the partition plate 6, and improve the grinding rate of the ball mill.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A partition plate for a ball mill, characterized in that: It includes a main frame (1) and a grate plate (2). The grate plate (2) is fixedly installed on the main frame (1). Several grate slots (3) are opened on the grate plate (2). The grate slots (3) are inclined and the inclination angle of the grate slots (3) is 40°~50°. The grate slots (3) are arranged in several groups along one end of the grate plate (2) to the other end. Each group of grate slots (3) includes two rows of grate slots (3). The inclination direction of the same row of grate slots (3) is the same, and the inclination direction of the two rows of grate slots (3) in each group is opposite.

2. A diaphragm plate for a ball mill according to claim 1, characterized in that: The angle of inclination of the slit (3) is 45°.

3. A diaphragm plate for a ball mill according to claim 1, characterized in that: In two adjacent sets of the grating (3), the two adjacent rows of grating (3) have the same inclination direction.

4. A diaphragm plate for a ball mill according to claim 1, characterized in that: A fixing strip (4) is provided between the grate seams (3) of each group. The fixing strip (4) and the main frame (1) are integrally set. The grate plate (2) is fixedly connected to the main frame (1) and the fixing strip (4).

5. A diaphragm plate for a ball mill according to claim 1, characterized in that: The main frame (1) includes an arc plate (101) and connecting plates (102) on both sides of the arc plate (101). The grate plate (2) is fan-shaped and is fixedly installed inside the main frame (1).

6. A diaphragm plate for a ball mill according to claim 5, characterized in that: A return port (5) is provided on the inner side of the grate plate (2) on the main frame (1).

7. A diaphragm plate for a ball mill according to claim 5, characterized in that: A connecting boss (8) is provided on the connecting plate (102). The connecting boss (8) protrudes along the length direction of the connecting plate (102), and the height of the connecting boss (8) is less than the height of the connecting plate (102).

8. A diaphragm plate for a ball mill according to claim 1, characterized in that: The main frame (1) and the grate (2) are connected by bolts and fixed by nuts.

9. A diaphragm plate for a ball mill according to claim 1, characterized in that: The width of the slit (3) is 3mm to 7mm.

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