A grating plate for a ball mill for proppant production

Abstract

The utility model relates to a grating plate of a ball mill for proppant production, comprising a center plate, a fan ring plate and a locking member; the center plate is coaxially sleeved with a connecting ring, the center plate outer ring surface array has a connecting rod whose outer end is connected to the inner ring of the connecting ring, a fan ring plate is arranged between every two connecting rods, and the fan ring plate and the connecting rods on both sides are detachably connected; each fan ring plate and the connecting ring are connected via a locking member, the locking member comprises a clamping plate and a bolt, the outer end surface of the fan ring plate is provided with a groove one, the inner ring surface of the connecting ring opposite to the outer end of the fan ring plate is provided with a groove two, the outer end of the clamping plate extends into the groove two, and the inner end extends into the groove one, the outer end of the clamping plate and the bottom surface of the groove two are connected with a spring, the right side surface of the clamping plate is provided with an inclined groove whose depth gradually deepens from the inner end to the outer end, and the connecting ring opposite to the opening of the inclined groove is threadedly connected with a bolt. The utility model solves the problem that the grating plate of the ball mill is partially damaged and needs to be replaced as a whole when the proppant raw material is crushed.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverizing devices, in particular to a grating plate of a ball mill for proppant production. Background Art

[0002] Ball mills are mainly divided into two types: grid type and overflow type. The working principle of the ball mill is to use steel balls or ceramic balls installed in the cylinder as grinding media to crush materials through mutual collision and friction. The grid type ball mill has a grid plate inside. After crushing, the smaller particle size materials will be discharged through the through holes on the grid plate, and the larger particle size materials will be retained in the ball mill for further crushing.

[0003] As the grate plate of the ball mill rotates with the cylinder, the steel balls in the cylinder will hit the grate plate, causing local damage to the grate plate. However, the grate plates currently used are generally one-piece casting structures. After the grate plate is partially damaged, it needs to be replaced as a whole, and the replacement cost is high. Summary of the invention

[0004] The utility model solves the problem that the grating plate of the ball mill is partially damaged and needs to be replaced as a whole when the proppant raw material is crushed, and provides a grating plate of the ball mill for proppant production, which can conveniently replace the partially damaged grating plate and reduce the replacement cost.

[0005] In order to solve the above problems, the technical solution of the utility model is:

[0006] A grating plate of a ball mill for proppant production comprises a center plate, a fan ring plate and a locking piece; a connecting ring is coaxially sleeved outside the center plate, a connecting rod is arrayed on the outer ring surface of the center plate, and the outer end of the connecting rod is connected to the inner ring of the connecting ring, a fan ring plate is arranged between every two connecting rods, and discharge holes are evenly distributed on the fan ring plate, and the fan ring plate and the connecting rods on both sides are detachably connected; each fan ring plate and the connecting ring are connected via a locking piece, and the locking piece comprises a clamping plate and a bolt, a groove 1 is arranged on the outer end surface of the fan ring plate, and a groove 2 is arranged on the inner ring surface of the connecting ring opposite to the outer end of the fan ring plate, the outer end of the clamping plate extends into the groove 2, and the inner end extends into the groove 1, a spring is connected to the outer end of the clamping plate and the bottom surface of the groove 2, an inclined groove is arranged on the right side surface of the clamping plate, and the depth gradually deepens from the inner end to the outer end, a bolt is threadedly connected to the connecting ring opposite to the opening of the inclined groove, and the end of the bolt extends into the inclined groove and contacts the left side surface of the inclined groove.

[0007] Furthermore, the inner end of the fan ring plate is narrow and the outer end is wide. The inner end of the fan ring plate contacts the outer ring surface of the center plate and the outer end contacts the inner ring surface of the connecting ring. The fan ring plate contacts the connecting rods on both sides.

[0008] Furthermore, the openings of the groove 1 and the groove 2 on the same locking member are opposite to each other, and the clamping plate slides in contact with the groove 1 and the groove 2 of the locking member respectively.

[0009] Furthermore, when the inner end of the clamping plate is located in the first groove on the locking member, the spring is in a stretched state; when the spring is in a natural state, the inner end surface of the clamping plate is located in the second groove.

[0010] Furthermore, a plurality of connecting grooves are provided on the side where each connecting rod contacts the fan ring plate, and the connecting grooves are isosceles trapezoidal grooves with narrow openings and wide inner bottoms. The opening of each connecting groove is opened on the side where the connecting rod contacts the fan ring plate, and the right end of each connecting groove passes through the right side surface of the connecting rod, and a screw rod is connected to the left side surface of each connecting groove. A connecting block located in a plurality of connecting grooves is connected to the straight surface of the fan ring plate, and the screw rod passes through the connecting block and is limited by a nut.

[0011] Furthermore, the inclined groove is a rectangular groove body, and the width thereof matches the diameter of the rod of the bolt.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model can strengthen the connectivity between the fan ring plate and the connecting rods through the detachable connection between the fan ring plate and the connecting rods on both sides. When the fan ring plate and the connecting rods on both sides are connected, it can ensure that the clamping plate on the locking member can lock the fan ring plate. The locking of the fan ring plate by the locking member can strengthen the connection between the connecting ring and the fan ring, thereby ensuring the stability of the fan ring plate when in use.

[0014] When any fan ring plate of the utility model is damaged, the connection between the fan ring plate and the connecting rods on both sides can be released, and the locking of the damaged fan ring by the locking piece can be released at the same time, so that the damaged fan ring plate can be removed, which is convenient for replacing the damaged fan ring plate.

[0015] The nuts and bolts of the utility model are both located at the discharging side of the ball mill. When the ball mill is working, the nuts and bolts are hit by the steel balls, which will not cause the rotation of the nuts and bolts, thereby ensuring the stable connection of the fan ring plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 (left view);

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 (right view);

[0018] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 This is a schematic diagram of the structure of the center plate connected to the connecting ring of the utility model;

[0020] Figure 5 yes Figure 4A partial enlarged view of point B in the middle;

[0021] Figure 6 A schematic structural diagram of a fan ring plate of the utility model;

[0022] Figure 7 It is a sectional front view of the connection between the locking member and the connecting ring and the fan ring of the utility model;

[0023] Figure 8 It is a structural schematic diagram of a card board of the utility model.

[0024] The numbers in the attached figure are: 1, center plate, 2, fan ring plate, 3, connecting ring, 4, connecting rod, 5, discharge hole, 6, clamping plate, 7, bolt, 8, groove one, 9, groove two, 10, spring, 11, inclined groove, 12, connecting groove, 13, screw, 14, nut, 15, through hole, 16, connecting block. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figures 1 to 8 As shown, a grating plate of a ball mill for proppant production comprises a center plate 1, a fan ring plate 2 and a locking piece; the center plate 1 is a circular ring plate, the connecting ring 3 is a circular ring body with an inner diameter larger than the outer diameter of the center plate 1, the center plate 1 is coaxially sleeved with a connecting ring 3, the center plate 1 has an outer ring surface array with connecting rods 4 whose outer ends are connected to the inner ring of the connecting ring 3, the inner end of the connecting rod 4 faces the center of the center plate 1, and the other end is the outer end, the connecting rod 4 is a rectangular rod, a fan ring plate 2 is provided between every two connecting rods 4, the fan ring plate 2 is evenly provided with discharge holes 5, and the fan ring plate 2 and the connecting rods 4 on both sides are detachably connected; each fan ring plate 2 and the connecting ring 3 are connected via a locking piece, and the locking piece It includes a clamping plate 6 and a bolt 7. The outer end surface of the fan ring plate 2 is provided with a groove 18. The inner ring surface of the connecting ring 3 opposite to the outer end of the fan ring plate 2 is provided with a groove 29. The groove 18 and the groove 29 are both U-shaped grooves. The outer end of the clamping plate 6 extends into the groove 29, and the inner end extends into the groove 18. The outer end of the clamping plate 6 and the bottom surface of the groove 29 are connected with a spring 10. The bottom surface of the groove 29 is the side opposite to the opening of the groove 29. The right side surface of the clamping plate 6 is provided with an inclined groove 11 whose depth gradually deepens from the inner end to the outer end. The connecting ring 3 opposite to the opening of the inclined groove 11 is threadedly connected with a bolt 7. The end of the bolt 7 extends into the inclined groove 11 and contacts the left side of the inclined groove 11.

[0027] The inner end of the fan ring plate 2 is narrow and the outer end is wide. The inner end of the fan ring plate 2 contacts the outer ring surface of the center plate, and the outer end contacts the inner ring surface of the connecting ring 3. The fan ring plate 2 contacts the connecting rods 4 on both sides.

[0028] The openings of the groove 1 8 and the groove 2 9 on the same locking member are opposite to each other, and the clamping plate 6 slides in contact with the groove 1 8 and the groove 2 9 of the locking member respectively.

[0029] When the inner end of the clamping plate 6 is located in the groove 1 8 on the locking member, the spring 10 is in a stretched state; when the spring 10 is in a natural state, the inner end surface of the clamping plate 6 is located in the groove 2 9 .

[0030] A plurality of connecting grooves 12 are provided on the side where each connecting rod 4 contacts the fan ring plate 2. The plurality of connecting grooves 12 are spaced apart along the length direction of the connecting rod 4. The connecting grooves 12 are isosceles trapezoidal grooves with a narrow opening and a wide inner bottom. The opening of each connecting groove 12 is opened on the side where the connecting rod 4 contacts the fan ring plate 2. The right end of each connecting groove 12 passes through the right side surface of the connecting rod 4. A screw rod 13 is connected to the left side surface of each connecting groove 12. A connecting block 16 located in the plurality of connecting grooves 12 is connected to the straight surface of the fan ring plate 2. The connecting block 16 corresponds to the connecting groove 12. The screw rod 13 passes through the connecting block 16 and is limited by a nut 14. A through hole 15 is provided on the connecting block 16 for the screw rod 13 to pass through.

[0031] The inclined groove 11 is a rectangular groove body, and the width thereof matches the diameter of the rod of the bolt 7 .

[0032] During installation, first rotate each bolt 7 to make the spring in a natural state, and the inner end of the card plate 6 on each locking member is located in the groove 2 9, and then the connecting blocks 16 on both sides of each fan ring plate 2 are completely inserted into the corresponding connecting groove 12, and each screw rod 13 passes through the corresponding through hole 15, and the end is limited by the nut 14, and each fan ring plate 2 can strengthen the connection with the connecting rod 4. At this time, the groove 1 8 and the groove 2 9 of each locking member are opened relative to each other. When each fan ring plate 2 is connected to the connecting rod 4, it can ensure that the inner end of each card plate 6 faces the groove 1 8 of the corresponding fan ring plate 2 to position the fan ring plate 2; rotate each screw rod 13 in the opposite direction, and the end of the screw rod 13 presses the left side of the corresponding inclined groove 11, so that the inner end of each card plate 6 extends into the corresponding groove 1 8 to strengthen the connection between the fan ring plate 2 and the connecting ring 3; after the utility model is installed in the cylinder of the ball mill, the left side of the utility model faces the side with steel balls in the cylinder;

[0033] When in use, the proppant raw material in the cylinder is crushed by the impact of the steel ball, and the crushed proppant raw material that meets the particle size of the discharge hole 5 on the fan ring plate 2 is discharged through the discharge hole 5 on the fan ring plate 2; when any fan ring plate 2 is damaged by the impact of the steel ball, the machine is stopped, the end cover on the discharge side of the ball mill is opened, the nuts 14 corresponding to the connecting blocks 16 on both sides of the damaged fan ring plate 2 are unscrewed, and the bolts 7 on the outside of the damaged fan ring plate 2 are rotated so that the inner end of the clamping plate 6 corresponding to the damaged fan ring plate 2 extends into the groove 2 9, and then the damaged fan ring plate 2 is pulled to the right to remove the damaged fan ring plate 2; repeat the above installation process to replace the damaged fan ring plate 2, so that the new fan ring plate 2 is connected to the connecting rod 4 and the connecting ring 3;

[0034] The nut 14 and the bolt 7 of the utility model are both located at the discharging side of the ball mill. When the ball mill is working, the utility model is hit by the steel ball, which will not cause the rotation of the nut 14 and the bolt 7, thereby ensuring the stable connection of the fan ring plate 2.

[0035] The preferred implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the above-mentioned embodiments. Without violating the spirit of the present invention, i.e., the disclosure scope, any equivalent or equivalent deformation or replacement of the technical solution of the present invention shall fall within the protection scope of the present invention.

Claims

1. A grating plate for a ball mill for proppant production, characterized in that: The invention comprises a center plate (1), a fan ring plate (2) and a locking member; the center plate (1) is coaxially sleeved with a connecting ring (3); the center plate (1) is provided with an array of connecting rods (4) on its outer ring surface, the outer ends of which are connected to the inner ring of the connecting ring (3); a fan ring plate (2) is provided between every two connecting rods (4); discharge holes (5) are evenly distributed on the fan ring plate (2); the fan ring plate (2) and the connecting rods (4) on both sides are detachably connected; each fan ring plate (2) and the connecting ring (3) are connected via a locking member, the locking member comprising a clamping plate (6) and a bolt (7); the outer end surface of the fan ring plate (2) is provided with a groove One (8), a second groove (9) is provided on the inner ring surface of the connecting ring (3) opposite to the outer end of the fan ring plate (2), the outer end of the clamping plate (6) extends into the second groove (9), and the inner end extends into the first groove (8), the outer end of the clamping plate (6) and the bottom surface of the second groove (9) are connected with a spring (10), and an inclined groove (11) is provided on the right side surface of the clamping plate (6), the depth of which gradually increases from the inner end to the outer end, and a bolt (7) is threadedly connected to the connecting ring (3) opposite to the opening of the inclined groove (11), and the end of the bolt (7) extends into the inclined groove (11) and contacts the left side surface of the inclined groove (11).

2. The grating plate of a ball mill for proppant production according to claim 1, characterized in that: The inner end of the fan ring plate (2) is narrow and the outer end is wide. The inner end of the fan ring plate (2) contacts the outer ring surface of the center plate, and the outer end contacts the inner ring surface of the connecting ring (3). The fan ring plate (2) contacts the connecting rods (4) on both sides.

3. The grating plate of a ball mill for proppant production according to claim 1, characterized in that: The openings of the groove one (8) and the groove two (9) on the same locking member are opposite to each other, and the clamping plate (6) slides in contact with the groove one (8) and the groove two (9) of the locking member, respectively.

4. The grating plate of a ball mill for proppant production according to claim 3, characterized in that: When the inner end of the clamping plate (6) is located in the first groove (8) on the locking member, the spring (10) is in a stretched state; when the spring (10) is in a natural state, the inner end surface of the clamping plate (6) is located in the second groove (9).

5. The grating plate of a ball mill for proppant production according to claim 1, characterized in that: A plurality of connection grooves (12) are provided on the side surface where each of the connecting rods (4) and the fan ring plate (2) are in contact. The connection grooves (12) are isosceles trapezoidal grooves with narrow openings and wide inner bottoms. The opening of each connection groove (12) is opened on the side surface where the connecting rod (4) and the fan ring plate (2) are in contact. The right end of each connection groove (12) passes through the right side surface of the connecting rod (4). The left side surface of each connection groove (12) is connected to a screw rod (13). A connection block (16) located in the plurality of connection grooves (12) is connected to the straight surface of the fan ring plate (2). The screw rod (13) passes through the connection block (16) and is limited by a nut (14).

6. The grating plate of a ball mill for proppant production according to claim 1, characterized in that: The inclined groove (11) is a rectangular groove body, and its width matches the diameter of the rod of the bolt (7).

Images