Ball milling cavity and wet type nano ball milling equipment

Abstract

The invention discloses a ball-milling cavity and wet-type nano ball-milling equipment, and relates to the field of ball-milling equipment, the ball-milling cavity comprises a material grinding cylinder, the two ends of the material grinding cylinder are connected with extending cylinders respectively, the two extending cylinders are communicated with the interior of the material grinding cylinder, and the sides, away from each other, of the two extending cylinders are communicated with an input port and an output port respectively; a spiral conveying piece is arranged in the input port, the material grinding barrel is driven by the motor to rotate, rotation of the material grinding barrel promotes the first grinding medium and the second grinding medium to do falling motion or throwing motion, and materials are smashed by impact grinding of the first grinding medium, the second grinding medium and the materials. Along with continuous input of the materials, the materials move towards the output port while being continuously crushed, due to the fact that the first grinding area and the second grinding area are arranged, the materials can be ground in two times, the grinding pressure of the first grinding area can be reduced, meanwhile, grinding can be finer, and the situation that part of the materials are not ground is avoided.

Description

Technical Field

[0001] The present invention relates to the field of ball milling equipment, and particularly relates to a ball milling cavity and a wet nano ball milling equipment. Background Art

[0002] Ball milling equipment is a key equipment for crushing materials and then pulverizing them. This type of grinding mill is loaded with a certain number of steel balls in its cylinder as grinding media. It is widely used in production industries such as cement, silicate products, new building materials, refractories, fertilizers, black and non-ferrous metal beneficiation, and glass ceramics, for dry or wet grinding of various ores and other grindable materials. Ball milling equipment is suitable for grinding various ores and other materials, and is widely used in industries such as beneficiation, building materials, and chemical engineering. It can be divided into two grinding methods: dry and wet.

[0003] Existing ball milling equipment generally grinds materials by placing grinding media of a single size in the ball milling cavity. For long-term grinding, the grinding pressure of the single type of grinding media will increase, and overheating is likely to occur.

[0004] Therefore, it is necessary to propose a ball milling cavity and a wet nano ball milling equipment to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a ball milling cavity and a wet nano ball milling equipment to solve the problem that existing ball milling equipment generally grinds materials by placing grinding media of a single size in the ball milling cavity. For long-term grinding, the grinding pressure of the single type of grinding media will increase, and overheating is likely to occur.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A ball milling cavity includes an abrasive cylinder, and both ends of the abrasive cylinder are respectively connected with extending cylinders. Both extending cylinders are in communication with the inside of the abrasive cylinder. One side of each of the two extending cylinders away from each other is respectively communicated with an input port and an output port. A spiral conveyor blade is arranged inside the input port. A layer of lining plate is fixed inside the abrasive cylinder, and a partition filter plate is fixed in the middle of the lining plate;

[0007] The abrasive cylinder is divided into a first abrasive area and a second abrasive area by the partition filter plate. The first abrasive area and the second abrasive area are respectively filled with first grinding media and second grinding media. The radius of the second grinding media is smaller than that of the first grinding media, and the first abrasive area is arranged on the side close to the input port. Through holes are opened on the partition filter plate. Triangular blocks are fixed on the inner wall of the second abrasive area. There are multiple triangular blocks, and the multiple triangular blocks are equidistantly distributed along the length direction of the inner wall of the second abrasive area.

[0008] Preferably, a material conveying mechanism is arranged inside the output port. The material conveying mechanism includes an upper baffle and a lower baffle. The upper baffle and the lower baffle are distributed in a conical shape inside the output port, and the tip of the conical structure faces away from the abrasive cylinder. The bottom end of the lower baffle is rotatably connected to the output port near the abrasive cylinder side.

[0009] Preferably, hinge seats are fixed on both the bottom end of the lower baffle and the opposite side of the inner wall of the output port. An electric push rod is rotatably connected between the two hinge seats. A pressure sensor is embedded in the upper surface of the lower baffle. A controller is arranged outside the abrasive cylinder. The pressure sensor, the controller and the electric push rod are electrically connected in sequence.

[0010] Preferably, conical openings are formed at both ends inside the abrasive cylinder. The radius of the mutually remote ends of the two conical openings is smaller than that of the mutually close ends, and the mutually remote ends of the two conical openings are respectively communicated with the input port and the output port.

[0011] Preferably, a gap is left between two adjacent triangular blocks. A groove is formed on the surface of the triangular block facing the second abrasive medium. A pop-up pad is telescopically arranged in the groove. A telescopic groove is formed inside the triangular block. A spring is fixed inside the telescopic groove. The bottom end of the pop-up pad is fixed with a pressure rod. The pressure rod extends into the telescopic groove, and a pressing plate is fixed at the bottom of the extending end of the pressure rod. The pressing plate is fixedly connected with one end of the spring.

[0012] Preferably, a plurality of grooves are formed. The plurality of grooves are equidistantly distributed along the surface of the triangular block. The grooves match the shape of the second abrasive medium, and the grooves are set as hemispherical, and the spherical diameter of the hemispherical shape is larger than the spherical diameter of the second abrasive medium.

[0013] Preferably, a water injection hole is formed on one of the extending cylinders, and a sealing plug is arranged on the water injection hole.

[0014] The present invention also discloses a wet nano ball milling device, which includes a driving structure and a support frame. There are two support frames. Bearings are arranged inside both support frames. The two extending cylinders are respectively connected to the corresponding bearings. A layer of sound insulation board is fixed outside the abrasive cylinder, and a large gear is sleeved outside the sound insulation board.

[0015] Preferably, the driving structure includes a motor. The motor is arranged on one side of the abrasive cylinder. A shaft fixer is arranged on one side of the motor. The driving shaft of the motor is rotatably connected to the shaft fixer, and a small gear is sleeved outside the driving shaft. The small gear meshes with the large gear.

[0016] The technical effects and advantages of the present invention:

[0017] 1. In the actual operation of the present invention, after the material is input into the interior of the abrasive cylinder, the material will first enter the first abrasive area and be ground by the first abrasive medium in the first abrasive area. After grinding, the size of the material becomes smaller, and the smaller material enters the second abrasive area through the partition filter plate and is finely ground again by the second abrasive medium, further reducing the size of the material.

[0018] 2. Since the abrasive cylinder is driven by a motor to rotate, the rotation of the abrasive cylinder causes the first abrasive medium and the second abrasive medium to perform a dropping motion or a throwing motion. The material is crushed by the impact grinding of the first abrasive medium, the second abrasive medium, and the material itself. As the material is continuously input, while the material is being continuously crushed, it moves towards the output port. Due to the presence of the first abrasive area and the second abrasive area, the material can be ground in two stages, which can reduce the grinding pressure in the first abrasive area and make the grinding more refined, avoiding the situation where some materials are not ground.

[0019] 3. In the actual operation of the present invention, the material that has undergone the first grinding will enter the interior of the second abrasive area. Multiple triangular blocks can separate the material and the second abrasive medium into multiple small areas, preventing them from all piling up together, which would increase the weight and cause the movement paths of the material and the second abrasive medium to become shorter when the abrasive cylinder rotates, resulting in a decrease in the grinding force between the material and the second abrasive medium.

[0020] 4. Further, when the material and the second abrasive medium rotate and fall, they will impact the ejection pad inside the groove. The ejection pad will compress the spring, causing the spring to contract and reducing the impact force on the triangular block. When the triangular block rotates to the upper end inside the abrasive cylinder, the material and the second abrasive medium start to fall. The ejection pad loses pressure and automatically pops out, and at the same time, it ejects the remaining material and the second abrasive medium, increasing the falling speed of the material and the second abrasive medium and enhancing the impact force, facilitating the grinding of the upper-layer material.

[0021] 5. In the actual operation of the present invention, when the ground material is pushed by the subsequently input material and due to the rotation of the abrasive cylinder and moves towards the output port, the ground material will be output onto the lower baffle. When the pressure sensor on the lower baffle detects the accumulation of material, it will transmit a signal to the controller, and the controller will control the electric push rod to retract, causing the lower baffle to rotate and descend, facilitating the discharge of the material through a gentler slope. When there is no material accumulation, the lower baffle and the upper baffle form a steeper slope, acting as a barrier to prevent some materials from splashing due to rotation and causing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the wet nanosphere grinding equipment of the present invention.

[0023] Figure 2 It is a schematic cross-sectional structure diagram of the ball milling cavity of the present invention.

[0024] Figure 3 This is a schematic structural view of the triangular block of the present invention.

[0025] Figure 4 For the present invention Figure 3 The enlarged view at position A in the figure.

[0026] In the figure: 1, support frame; 2, extension cylinder; 3, sound insulation board; 4, large gear; 5, motor; 6, shaft fixator; 7, small gear; 8, input port; 9, output port; 10, lining board; 11, partition filter plate; 12, first grinding medium; 13, second grinding medium; 14, spiral conveyor blade; 15, upper baffle; 16, triangular block; 17, lower baffle; 18, hinge seat; 19, electric push rod; 20, pressure sensor; 21, bearing; 22, conical opening; 23, abrasive cylinder; 24, water injection hole; 25, telescopic groove; 26, groove; 27, pop-up pad; 28, pressure rod; 29, spring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The present invention provides a ball milling cavity as shown in Figure 1 - Figure 4 which includes an abrasive cylinder 23. The two ends of the abrasive cylinder 23 are respectively connected with extension cylinders 2. Both extension cylinders 2 are internally communicated with the abrasive cylinder 23. The two sides of the two extension cylinders 2 away from each other are respectively communicated with an input port 8 and an output port 9. The present invention also discloses a wet nano ball milling device, which includes a driving structure and a support frame 1. There are two support frames 1. Bearings 21 are arranged in both support frames 1. The two extension cylinders 2 are respectively connected to the interiors of the corresponding bearings 21. A layer of sound insulation board 3 is fixed on the outer side of the abrasive cylinder 23. A large gear 4 is sleeved on the outer side of the sound insulation board 3. The input port 8 is used for inputting materials to be ground, and the output port 9 is used for outputting the ground materials.

[0029] The driving structure includes a motor 5. The motor 5 is arranged on one side of the abrasive cylinder 23. A shaft fixator 6 is arranged on one side of the motor 5. The driving shaft of the motor 5 is rotatably connected to the shaft fixator 6, and a small gear 7 is sleeved on the outer side of the driving shaft. The small gear 7 meshes with the large gear 4. When the motor 5 is started, the large gear 4 can be driven to rotate by the small gear 7, so as to realize the rotation of the abrasive cylinder 23.

[0030] Inside the input port 8, there is a spiral conveyor sheet 14. Inside the abrasive cylinder 23, a layer of lining plate 10 is fixed. In the middle of the lining plate 10, a partition filter plate 11 is fixed. The abrasive cylinder 23 is divided into a first abrasive area and a second abrasive area by the partition filter plate 11. The first abrasive area and the second abrasive area are respectively filled with a first abrasive medium 12 and a second abrasive medium 13.

[0031] In the actual operation of the present invention, when the material is input into the inside of the abrasive cylinder 23, the material will first enter the first abrasive area and be ground by the first abrasive medium 12 in the first abrasive area. After grinding, the size of the material becomes smaller. The smaller material passes through the partition filter plate 11 and enters the second abrasive area, where it is finely ground by the second abrasive medium 13 again, further reducing the size of the material.

[0032] Since the abrasive cylinder 23 is driven by the motor 5 to rotate, the rotation of the abrasive cylinder 23 causes the first abrasive medium 12 and the second abrasive medium 13 to perform a dropping motion or a throwing motion. The material is crushed by the impact grinding of the first abrasive medium 12, the second abrasive medium 13, and the material itself. As the material is continuously input, while the material is being continuously crushed, it moves towards the output port 9. Due to the setting of the first abrasive area and the second abrasive area, the material can be ground in two stages, which can reduce the grinding pressure in the first abrasive area, and at the same time, the grinding can be made more delicate, avoiding some materials not being ground.

[0033] On one of the extension cylinders 2, there is a water injection hole 24, and a sealing plug is provided on the water injection hole 24. Through the water injection hole 24, water source or grinding liquid can be injected into the inside of the abrasive cylinder 23 for wet grinding. And due to the fluidity of water, the ground smaller materials can move, facilitating output.

[0034] The radius of the second abrasive medium 13 is smaller than the radius of the first abrasive medium 12, and the first abrasive area is arranged on the side close to the input port 8. The partition filter plate 11 is provided with through holes. On the inner wall of the second abrasive area, triangular blocks 16 are fixed. There are multiple triangular blocks 16, and the multiple triangular blocks 16 are equidistantly distributed along the length direction of the inner wall of the second abrasive area.

[0035] There is a gap between two adjacent triangular blocks 16. On the side of the triangular block 16 facing the second abrasive medium 13, there is a groove 26. A pop-up pad 27 is telescopically arranged in the groove 26. Inside the triangular block 16, there is a telescopic groove 25. A spring 29 is fixed inside the telescopic groove 25. The bottom end of the pop-up pad 27 is fixed with a pressure rod 28. The pressure rod 28 extends into the telescopic groove 25, and the bottom of the extending end of the pressure rod 28 is fixed with a pressing plate. The pressing plate is fixedly connected to one end of the spring 29.

[0036] There are multiple grooves 26, and the multiple grooves 26 are equidistantly distributed on the surface of the triangular block 16. And the groove 26 matches the shape of the second abrasive medium 13, and the groove 26 is set as a hemispherical shape, and the spherical diameter of the hemispherical shape is larger than the spherical diameter of the second abrasive medium 13.

[0037] In the actual operation of the present invention, the material after the first grinding will enter the interior of the second abrasive area. Multiple triangular blocks 16 can separate the material and the second abrasive medium 13 in multiple small areas, preventing them from all piling up together, increasing the weight, and causing the moving paths of the material and the second abrasive medium 13 to become shorter when the abrasive cylinder 23 rotates, resulting in a smaller grinding force between the material and the second abrasive medium 13.

[0038] Furthermore, when the material and the second abrasive medium 13 rotate and fall, they will impact the ejection pad 27 inside the groove 26. The ejection pad 27 will squeeze the spring 29, causing the spring 29 to contract and reducing the impact force on the triangular block 16. When the triangular block 16 rotates to the upper end inside the abrasive cylinder 23, the material and the second abrasive medium 13 start to fall. The ejection pad 27 loses pressure and automatically ejects, and also ejects the remaining material and the second abrasive medium 13, increasing the falling speed of the material and the second abrasive medium 13, enhancing the impact force, and facilitating the grinding of the upper-layer material.

[0039] A feeding mechanism is arranged inside the output port 9. The feeding mechanism includes an upper baffle 15 and a lower baffle 17. The upper baffle 15 and the lower baffle 17 are distributed in a conical shape inside the output port 9, and the tip of the conical structure faces away from the side of the abrasive cylinder 23. The bottom end of the lower baffle 17 is rotatably connected to the output port 9 near the side of the abrasive cylinder 23.

[0040] Hinge seats 18 are fixedly arranged on both the bottom end of the lower baffle 17 and the inner wall of the output port 9 on the opposite side. An electric push rod 19 is rotatably connected between the two hinge seats 18. A pressure sensor 20 is embedded in the upper surface of the lower baffle 17. A controller is arranged on the outer side of the abrasive cylinder 23. The pressure sensor 20, the controller, and the electric push rod 19 are electrically connected in sequence.

[0041] Conical openings 22 are provided at both ends inside the abrasive cylinder 23. The radii of the mutually remote ends of the two conical openings 22 are smaller than those of the mutually close ends, and the mutually remote ends of the two conical openings 22 are respectively communicated with the input port 8 and the output port 9.

[0042] In the actual operation of the present invention, when the ground material is pushed by the subsequently input material and by the rotation of the abrasive cylinder 23 and moves towards the output port 9, the ground material will be output onto the lower baffle 17. When the pressure sensor 20 on the lower baffle 17 detects the accumulation of material, it will transmit a signal to the controller. The controller controls the electric push rod 19 to retract, enabling the lower baffle 17 to rotate and descend, facilitating the discharge of the material through a gentler slope. When there is no material accumulation, the lower baffle 17 and the upper baffle 15 form a steeper slope, playing a blocking role to prevent some material from splashing due to rotation and causing waste.

Claims

1. A ball mill chamber, comprising an abrasive cylinder (23), characterized in that: The two ends of the abrasive cylinder (23) are respectively connected to the extension cylinders (2), the two extension cylinders (2) are both connected to the inside of the abrasive cylinder (23), the two extension cylinders (2) are respectively connected to the input port (8) and the output port (9) on the sides away from each other, the input port (8) is provided with a spiral conveying sheet (14), the inner side of the abrasive cylinder (23) is fixed with a lining plate (10), and the middle part of the lining plate (10) is fixed with a partition filter plate (11); The abrasive cylinder (23) is divided into a first abrasive zone and a second abrasive zone by a partition filter plate (11); the first abrasive zone and the second abrasive zone are filled with a first grinding medium (12) and a second grinding medium (13) respectively; the radius of the second grinding medium (13) is smaller than the radius of the first grinding medium (12); and the first abrasive zone is arranged on a side close to the input port (8); a through hole is provided on the partition filter plate (11); a triangular block (16) is fixed on the inner wall of the second abrasive zone; a plurality of the triangular blocks (16) are provided, and the plurality of triangular blocks (16) are distributed at equal distances along the length direction of the inner wall of the second abrasive zone.

2. A ball mill chamber according to claim 1, characterized in that: A material feeding mechanism is arranged inside the output port (9), and the material feeding mechanism comprises an upper baffle plate (15) and a lower baffle plate (17). The upper baffle plate (15) and the lower baffle plate (17) are distributed inside the output port (9) in a conical shape, and the tip of the conical structure faces a side away from the abrasive cylinder (23). The bottom end of the lower baffle plate (17) is rotatably connected to the output port (9) at a side close to the abrasive cylinder (23).

3. A ball mill chamber according to claim 2, characterized in that: A hinge seat (18) is fixed at the bottom end of the lower baffle (17) and at the opposite side of the inner wall of the output port (9), and an electric push rod (19) is rotatably connected between the two hinge seats (18). A pressure sensor (20) is embedded in the upper surface of the lower baffle (17), and a controller is arranged on the outer side of the abrasive cylinder (23). The pressure sensor (20), the controller and the electric push rod (19) are electrically connected in sequence.

4. A ball mill chamber according to claim 1, characterized in that: Both ends of the abrasive cylinder (23) are provided with tapered openings (22), the radii of the ends of the two tapered openings (22) that are away from each other are smaller than the radii of the ends that are close to each other, and the ends of the two tapered openings (22) that are away from each other are connected to the input opening (8) and the output opening (9) respectively.

5. The ball mill chamber according to claim 1, characterized in that: A gap is left between two adjacent triangular blocks (16), and a groove (26) is provided on one side of the triangular block (16) facing the second grinding medium (13), a pop-up pad (27) is telescopically arranged in the groove (26), a telescopic groove (25) is provided inside the triangular block (16), a spring (29) is fixed inside the telescopic groove (25), a pressure rod (28) is fixed at the bottom end of the pop-up pad (27), the pressure rod (28) extends into the telescopic groove (25), and a pressure plate is fixed at the bottom of the extended end of the pressure rod (28), and the pressure plate is fixedly connected to one end of the spring (29).

6. A ball mill chamber according to claim 5, characterized in that: A plurality of grooves (26) are provided, and the plurality of grooves (26) are distributed at equal distances along the surface of the triangular block (16). The shapes of the grooves (26) and the second grinding medium (13) match each other, and the grooves (26) are configured to be hemispherical, and the diameter of the hemispherical shape is larger than the diameter of the second grinding medium (13).

7. The ball mill chamber according to claim 1, characterized in that: One of the extension tubes (2) is provided with a water injection hole (24), and a sealing plug is provided on the water injection hole (24).

8. A wet nano ball milling device, characterized in that: It comprises a ball mill chamber as claimed in any one of claims 1 to 7, and also comprises a driving structure and a support frame (1), wherein two support frames (1) are provided, and bearings (21) are provided in both support frames (1), and two extending tubes (2) are respectively connected to the inside of corresponding bearings (21), and a sound insulation board (3) is fixed on the outer side of the abrasive tube (23), and a large gear (4) is sleeved on the outer side of the sound insulation board (3).

9. A wet nano ball milling device according to claim 8, characterized in that: The driving structure comprises a motor (5), the motor (5) is arranged on one side of the abrasive cylinder (23), and a shaft fixer (6) is arranged on one side of the motor (5).

10. A wet nano ball milling device according to claim 9, characterized in that: The driving shaft of the motor (5) is rotatably connected to the shaft holder (6), and a small gear (7) is sleeved on the outer side of the driving shaft, and the small gear (7) is meshed with the large gear (4).

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