Ball mill with discharge screen mechanism

Abstract

The utility model is suitable for ball mill technical field discloses a ball mill with discharge screen mechanism, both sides of installation base top are all vertical fixed installation with support plate, two groups of support plate side between rotation is installed with first cylinder, first cylinder inside rotation is installed with second cylinder, and the middle end of second cylinder side is fixedly connected with hollow tube, and the inside of support plate top is rotationally installed to hollow tube side through bearing penetration, and the middle end of first cylinder outside is fixedly installed with fixed tube, and the inside of fixed tube is rotationally installed to hollow tube penetration. The utility model technical scheme makes that the material of particle diameter eligible can be discharged from first cylinder and second cylinder inside at the same time, and the material of particle diameter unqualified can still remain in second cylinder inside, facilitates subsequent again to carry on the crushing processing use, reduces the operation step required to operator to take and re -throw the material, improves the crushing grinding processing efficiency to the material.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, and in particular to a ball mill with a discharge screening mechanism. Background Technology

[0002] Currently, ball mills are a core grinding equipment widely used in mining, building materials, chemical, metallurgy, power and new materials industries. Their core principle is to achieve the fine processing of materials from coarse particles to fine powders through the violent collision, grinding and shearing action between steel balls (or ceramic balls, corundum balls, etc.) and materials.

[0003] However, in current ball mills for fine grinding, the material inside is not always completely pulverized to the appropriate particle size during the impact of the steel balls. Therefore, to ensure proper operation, the material is discharged from the mill and screened. Particles with unsuitable diameters are then re-introduced for further grinding. This cumbersome process negatively impacts grinding efficiency. Therefore, we propose a ball mill with a discharge screening mechanism. Utility Model Content

[0004] The main objective of this invention is to provide a ball mill with a discharge screening mechanism, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A ball mill with a discharge screening mechanism includes a mounting base, on both sides of the top of the mounting base, a support plate is vertically fixedly mounted, a first cylinder is rotatably mounted between the two sets of support plates, and a second cylinder is rotatably mounted inside the first cylinder.

[0007] The second cylinder has a hollow tube fixedly connected to the middle of its side, and the side of the hollow tube is rotatably mounted inside the top of the support plate through a bearing. A rotary joint is fixedly mounted at the top of the side of the hollow tube, and a feeding pipe is fixedly connected to the top of the side of the rotary joint. A fixed pipe is fixedly mounted at the middle of the outer side of the first cylinder, and the hollow tube is rotatably mounted inside the fixed pipe.

[0008] An adjustment mechanism is provided on the outside of the hollow tube, and a screening mechanism is provided inside the first and second cylinders.

[0009] As an optional solution to the technical solution of this application, the screening mechanism includes a first screening hole and a second screening hole. The first screening hole is vertically opened at the bottom of the first cylinder, and the second screening hole is vertically opened at the bottom of the second cylinder. The number of the first screening hole and the second screening hole is several sets.

[0010] By adopting the above technical solution, a first screening hole and a second screening hole are respectively opened on the outer sides of the first cylinder and the second cylinder. The position of the first screening hole on the outer side of the first cylinder can be adjusted by rotation, thereby allowing the first screening hole and the second screening hole to be in a state of mutual communication. In this way, the crushed material can be screened by combining the first screening hole and the second screening hole. Material with qualified particle diameter can be discharged from the inside of the first cylinder and the second cylinder, while material with unqualified particle diameter can remain inside the second cylinder, which is convenient for subsequent crushing and processing. This reduces the number of operation steps required for the operator to pick up and put back the material, and improves the crushing and grinding efficiency of the material.

[0011] As an optional solution to the technical solution of this application, the adjustment mechanism includes a connecting screw, and both ends of the hollow tube and the fixed tube are provided with insertion holes. A sliding connecting screw is inserted between every two sets of insertion holes. Both ends of the connecting screw are threaded with a clamping nut, and the clamping nuts are located on both sides of the outside of the fixed tube.

[0012] By adopting the above technical solution, the rotation of the hollow tube and the fixed tube can be limited by the insertion and limiting action of the connecting screw and the tightening nut.

[0013] As an optional solution to the technical solution of this application, a servo motor is fixedly installed on the top side of the mounting base, and a rotating rod is fixedly installed on the side of the servo motor drive shaft through a coupling. A drive roller is fixedly sleeved on the outside of the rotating rod, and a follower roller is fixedly sleeved on the outside of the hollow tube. A drive belt is movably sleeved between the outside of the drive roller and the follower roller.

[0014] By adopting the above technical solution, the transmission belt connects the transmission drum and the follower drum, and the servo motor drives the second cylinder to rotate, thereby crushing and grinding the material inside.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A ball mill with a discharge screening mechanism according to the technical solution of this application, wherein a rotatable first cylinder is provided on the top of the mounting base, and a second cylinder is rotatably installed inside the first cylinder. A hollow tube connected to the second cylinder is rotatably sleeved inside a fixed tube connected to the first cylinder. This allows the first cylinder to rotate synchronously when the fixed tube is turned, thereby adjusting the position of the first screening hole on the outside of the first cylinder. This allows the first screening hole and the second screening hole to be in a state of mutual communication. The first screening hole and the second screening hole can then be used to screen the crushed material. Material with a qualified particle diameter can be discharged from the first cylinder and the second cylinder, while material with a qualified particle diameter can remain inside the second cylinder for subsequent crushing and processing. This reduces the number of steps required for the operator to handle and refill the material, and improves the efficiency of crushing and grinding the material.

[0017] 2. A ball mill with a discharge screening mechanism according to the technical solution of this application, by providing insertion holes on both sides of the fixed tube and the hollow tube, and installing connecting screws inside the insertion holes, can rotate the first cylinder and the first screening hole by turning the fixed tube, and then use the clamping bolts to limit the movement of the fixed tube and the hollow tube from both sides of the connecting screws. This can limit the movement of the fixed tube and the hollow tube, and prevent the fixed tube and the hollow tube from rotating arbitrarily, which would affect the material bearing and sealing performance of the first cylinder and the second cylinder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of a ball mill with a discharge screening mechanism according to the present invention.

[0019] Figure 2 This is a side view sectional view of the first and second cylinders of a ball mill with a discharge screening mechanism according to the present invention.

[0020] Figure 3 This is a side view sectional diagram of the hollow tube and fixed tube of a ball mill with a discharge screening mechanism according to this utility model.

[0021] Reference numerals: 1. Mounting base; 11. Support plate; 12. First cylinder; 13. Second cylinder; 14. Hollow tube; 15. Rotary joint; 16. Feeding pipe; 2. Fixed pipe; 21. Follower roller; 22. Servo motor; 23. Rotating rod; 24. Transmission roller; 25. Transmission belt; 26. First screening hole; 27. Second screening hole; 3. Insertion hole; 31. Connecting screw; 32. Tightening nut. Detailed Implementation

[0022] like Figure 1-3 As shown, this utility model provides a technical solution: a ball mill with a discharge screening mechanism, wherein support plates 11 are vertically fixedly installed on both sides of the top of the mounting base 1, a first cylinder 12 is rotatably installed between the sides of the two sets of support plates 11, a second cylinder 13 is rotatably installed inside the first cylinder 12, a hollow tube 14 is fixedly connected to the middle of the side of the second cylinder 13, and the side of the hollow tube 14 is rotatably installed inside the top of the support plate 11 through a bearing, and a fixed tube 2 is fixedly installed at the middle of the outer side of the first cylinder 12, and the hollow tube 14 is rotatably installed inside the fixed tube 2.

[0023] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), both ends of the hollow tube 14 and the fixed tube 2 are provided with insertion holes 3. A sliding insertion connecting screw 31 runs through the interior of each pair of insertion holes 3. Both ends of the connecting screw 31 are threaded with a clamping nut 32, and the clamping nut 32 is located on both sides of the outside of the fixed tube 2.

[0024] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), a rotary joint 15 is fixedly installed on the top side of the hollow tube 14. A feeding pipe 16 is fixedly connected to the top side of the rotary joint 15. A transmission roller 24 is fixedly sleeved on the outside of the rotating rod 23. A follower roller 21 is fixedly sleeved on the outside of the hollow tube 14. A transmission belt 25 is movably sleeved between the outside of the transmission roller 24 and the follower roller 21.

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), the bottom of the first cylinder 12 is provided with a first screening hole 26 vertically, and the bottom of the second cylinder 13 is provided with a second screening hole 27 vertically. The number of the first screening hole 26 and the second screening hole 27 are several groups, and the diameters of the first screening hole 26 and the second screening hole 27 are the same.

[0026] During operation, when materials need to be crushed and ground, the materials to be crushed and ground are fed into the hollow tube 14 and the second cylinder 13 through the feeding pipe 16. At this time, the first screening hole 26 is located on the outer wall of the second cylinder 13, meaning that the first screening hole 26 and the second screening hole 27 cannot be connected to each other. Then, the servo motor 22 is started, causing it to rotate and drive the rotating rod 23. Combined with the driving action of the rotating rod 23, the transmission drum 24 is synchronously driven. Under the transmission action of the transmission belt 25, the transmission drum 24 and the follower drum 21 can rotate synchronously, thereby driving the hollow tube 14 and the second cylinder 13 to rotate. When the second cylinder 13 rotates, the steel balls inside it also rotate, causing contact and collision with the materials to achieve crushing and grinding. After processing, the tightening nut 32 can be turned to remove it from both ends of the connecting screw 31. Then, the connecting screw 31 can be removed from the insertion hole 3. The fixing tube 2 can be turned to make the first cylinder 12 rotate on the outside of the second cylinder 13. This allows the position of the first screening hole 26 on the outside of the first cylinder 12 to be adjusted, so that the first screening hole 26 and the second screening hole 27 can be connected to each other. The crushed material can be screened by combining the first screening hole 26 and the second screening hole 27. Material with qualified particle diameter can be discharged from the first cylinder 12 and the second cylinder 13, while material with unqualified particle diameter can remain in the second cylinder 13 for subsequent crushing and processing until the material remaining in the first cylinder 12 maintains a reasonable particle diameter.

Claims

1. A ball mill with a discharge screening mechanism, comprising a mounting base (1), characterized in that: The mounting base (1) has support plates (11) vertically fixed on both sides of its top. A first cylinder (12) is rotatably installed between the two sets of support plates (11) and a second cylinder (13) is rotatably installed inside the first cylinder (12). The second cylinder (13) has a hollow tube (14) fixedly connected to the middle of its side, and the hollow tube (14) is rotatably mounted inside the top of the support plate (11) through a bearing. The first cylinder (12) has a fixed tube (2) fixedly mounted at the middle of its outer side, and the hollow tube (14) is rotatably mounted inside the fixed tube (2). An adjustment mechanism is provided on the outside of the hollow tube (14), and a screening mechanism is provided inside the first cylinder (12) and the second cylinder (13).

2. The ball mill with a discharge screening mechanism according to claim 1, characterized in that: The screening mechanism includes a first screening hole (26) and a second screening hole (27). The first cylinder (12) has a first screening hole (26) vertically opened at the bottom, and the second cylinder (13) has a second screening hole (27) vertically opened at the bottom. The number of the first screening hole (26) and the second screening hole (27) is several groups.

3. The ball mill with a discharge screening mechanism according to claim 2, characterized in that: The adjustment mechanism includes a connecting screw (31). Both ends of the hollow tube (14) and the fixed tube (2) are provided with insertion holes (3). The connecting screw (31) is slidably inserted between the two sets of insertion holes (3). Both ends of the connecting screw (31) are screwed with a locking nut (32) by threads, and the locking nut (32) is located on both sides of the outside of the fixed tube (2).

4. The ball mill with a discharge screening mechanism according to claim 1, characterized in that: A servo motor (22) is fixedly installed on the top side of the mounting base (1), and a rotating rod (23) is fixedly installed on the side of the transmission shaft of the servo motor (22) through a coupling.

5. The ball mill with a discharge screening mechanism according to claim 4, characterized in that: A transmission roller (24) is fixedly sleeved on the outside of the rotating rod (23), and a follower roller (21) is fixedly sleeved on the outside of the hollow tube (14). A transmission belt (25) is movably sleeved between the outer sides of the transmission roller (24) and the follower roller (21).

6. The ball mill with a discharge screening mechanism according to claim 1, characterized in that: A rotary joint (15) is fixedly installed on the top side of the hollow tube (14), and a feeding pipe (16) is fixedly connected to the top side of the rotary joint (15).

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