Multi-stage crushing powder vibration mill

Abstract

The utility model discloses a multi-stage crushing powder vibrating mill which comprises a box body, one side of the top end of the box body is fixedly connected with a feeding hopper, the inner wall of the box body is sequentially and fixedly connected with a plurality of filter plates from top to bottom, and a grinding unit is arranged above the filter plates. Through cooperation of the box body, the feeding hopper, the filter plate and the material grinding unit, materials can fall downwards through the filter plate, filter holes of the filter plate in the box body are continuously reduced from top to bottom, multi-stage step-by-step crushing of the materials is facilitated, when the grinding roller passes through the materials clamped by the filter holes in the period, the acting force of the lower portion of the outer wall of the grinding roller close to one side of the materials is greatly increased, and at the moment, a compression spring is compressed and deformed; the sleeve block, the round rod, the square rod and the grinding roller move upwards, and the grinding roller can grind above the clamped material instead of being blocked and cannot move forwards, so that a motor for driving the grinding roller to rotate cannot be in a high-load state, and a machine body can run stably for a long time.

Description

Technical Field

[0001] This utility model relates to the field of mill technology, and in particular to a multi-stage crushing vibratory mill for powder. Background Technology

[0002] A ball mill is a type of mill that is a key piece of equipment for further pulverizing materials after they have been crushed. A certain number of steel balls are loaded into the cylinder as grinding media to pulverize the raw materials. It is commonly used in the production and processing of silicate products, ores, fertilizers and ceramics.

[0003] In the prior art, a vertical ball mill with a multi-stage crushing structure is disclosed, including a support frame body, a first motor, a second motor, a base fixed to the inner side of the upper part of the frame body, a liner, and a feed inlet. The liner is fixedly installed on the inner side of the base. In order to quickly obtain materials that meet the usage standards and reduce energy consumption, the filter device can move the screen to prevent the filter screen from being blocked and affecting the operation of the device, and facilitates the replacement of the internal steel balls.

[0004] However, the device still has some drawbacks during actual operation. Although the filter screen can vibrate to reduce the chance of material clogging the filter holes, the material will inevitably clog the filter holes for a certain period of time. If the grinding roller is stuck in the path of the grinding roller, the grinding roller is easily stuck by the material. At this time, the motor driving the grinding roller is under high load, which will seriously reduce the overall service life of the machine in the long run. Therefore, it is necessary to provide a multi-stage crushing powder vibrating mill to solve the above technical problems. Utility Model Content

[0005] In order to overcome the defects of the prior art, this utility model provides a multi-stage crushing and powder vibrating mill. The material stuck in the filter hole will not seriously affect the passage of the grinding roller, and will not put the motor driving the grinding roller in a high load state, which facilitates the long-term stable operation of the machine.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A multi-stage crushing and powder vibratory mill includes: a housing, a feeding hopper fixedly connected to one side of the top of the housing, multiple filter plates fixedly connected sequentially from top to bottom on the inner wall of the housing, an abrasive unit provided above the filter plates, the abrasive unit including: grinding rollers, grinding rollers attached to both sides above the filter plates, a vertical pipe rotatably connected to the inner wall of the filter plates, a portion of the vertical pipe penetrating the housing, the vertical pipe rotatably connected to the housing via a sealed bearing, a sleeve block fitted onto the outer wall of the vertical pipe, and a pair of sliding grooves formed on the inner wall of the sleeve block. A slider is slidably engaged with the sleeve, and the slider is fixedly connected to the riser. A compression spring is fixedly connected to the top of the sleeve. Round rods are rotatably connected to both sides of the sleeve. A tapered rod is fixedly connected to the end of the round rod away from the sleeve. The end of the tapered rod away from the round rod is fixedly connected to the grinding roller. A disc is fixedly sleeved on the top of the outer wall of the riser. A toothed ring is fixedly connected to the upper surface of the disc. A gear is meshed with the top of the toothed ring. The output shaft of the motor is fixedly connected to the inner wall of the gear. A bracket is fixedly sleeved on the outer wall of the motor housing. The bracket is fixedly connected to the housing.

[0008] Preferably, the motor has a housing on its outer side, the housing is fixedly connected to the box body, and multiple through holes are present on both sides of the housing.

[0009] Preferably, a protective unit is provided on the outer side of the tapered rod. The protective unit includes: a vertical cylinder sleeved on the outer side of the tapered rod, sleeve plates fixedly connected to both ends of the vertical cylinder, the inner wall of the sleeve plates being fixedly connected to the vertical pipe, the tapered rod penetrating the vertical cylinder through a vertical groove, a bellows cover fixedly connected to the inner wall of the vertical groove, and the inner wall of the bellows cover abutting against the tapered rod.

[0010] Preferably, the top of the riser is provided with a cleaning unit, which includes: a short pipe rotatably connected to the top of the riser, a valve fixedly connected to the top of the short pipe, an air injection pipe fixedly connected to the top of the valve, a pair of branch pipes below the filter plate, the branch pipes being fixedly connected to the riser, a plurality of one-way valves being fixedly connected from front to back to the top of the outer wall of the branch pipes, a dustproof air pump fixedly connected to the side of the upper part of the box away from the feeding hopper, an air extraction pipe fixedly connected to one side of the dustproof air pump, the air extraction pipe being fixedly connected to the box, and an exhaust pipe fixedly connected to the top of the dustproof air pump, the exhaust pipe being fixedly connected to the box.

[0011] Preferably, the top of the feeding hopper is provided with a movable door.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) In this utility model, through the cooperation between the box, the feeding hopper, the filter plate and the grinding unit, the material to be crushed is fed into the box in an appropriate amount through the feeding hopper. The material falls and contacts the upper surface of the filter plate at the top inside the box. The motor is started to make the vertical pipe rotate. During this process, the grinding roller revolves around the vertical pipe and rotates around the round rod. During this process, the grinding roller can crush the material on the upper surface of the filter plate. After the material is crushed, its volume is reduced and it can fall down through the filter plate. The filter holes of the filter plate inside the box are continuously reduced from top to bottom, which is convenient for the material to be crushed in multiple stages. During this process, when the grinding roller passes through the material stuck in the filter hole, the force on the side of the outer wall of the grinding roller towards the material increases greatly. At this time, the compression spring is compressed and deformed, and the sleeve block, round rod, square rod and grinding roller move upward. The grinding roller will roll over the material stuck above instead of being blocked and unable to move forward. This will not put the motor driving the grinding roller in a high load state, which is conducive to the long-term stable operation of the machine.

[0014] (2) In this utility model, through the cooperation between the box, feeding hopper, filter plate, abrasive unit and protective unit, the vertical cylinder and sleeve plate can protect the internal structural components. With the bellows cover installed on the inner wall of the vertical groove, it can effectively prevent the particles generated during crushing from entering the interior of the vertical cylinder, and facilitate long-term and stable transmission operation between the various components inside the vertical cylinder.

[0015] (3) In this utility model, through the cooperation between the box, feeding hopper, filter plate, abrasive unit, protection unit and cleaning unit, after the device completes a single operation, the valve is opened and high-pressure air is injected into the interior of the riser through the air injection pipe. At the same time, the dustproof air pump and motor are started. The injected high-pressure air will be sprayed out from the top of the one-way valve through the branch pipe. The sprayed high-pressure air can deliver air to the bottom of the filter plate. During this period, the strong airflow can cause the material blocked in the filter plate to vibrate to a certain extent and be discharged from the filter hole. The operation of the dustproof air pump can facilitate the smooth discharge of the air injected into the box and facilitate the smooth injection of high-pressure air. The operation of the motor can make the two branch pipes revolve around the riser as the center, and can carry out all-round air delivery operation to the bottom of the filter plate, which can facilitate the thorough cleaning of the material blocked on the filter plate. Attached Figure Description

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

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 for Figure 1 A magnified view of a portion of the image.

[0020] The corresponding names of the attached figures are as follows: 1-box body, 2-feeding hopper, 3-filter plate, 4-grinding roller, 5-vertical pipe, 6-sleeve block, 7-slide groove, 8-slider, 9-round rod, 10-square rod, 11-disc, 12-gear ring, 13-gear, 14-motor, 15-support, 16-vertical cylinder, 17-sleeve plate, 18-vertical groove, 19-accordion cover, 20-short pipe, 21-through hole, 22-valve, 23-air injection pipe, 24-branch pipe, 25-one-way valve, 26-dustproof air pump, 27-air extraction pipe, 28-exhaust pipe, 29-box body, 30-compression spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0022] Example 1: As Figures 1-4As shown, this utility model provides a multi-stage crushing vibratory mill for powder, comprising: a housing 1, a feeding hopper 2 fixedly connected to one side of the top of the housing 1, the feeding hopper 2 being interconnected with the interior of the housing 1, and multiple filter plates 3 being fixedly connected to the inner wall of the housing 1 from top to bottom. The filter plates 3 are made of stainless steel with a surface covered with filter holes. The inner diameter of the filter holes on the multiple filter plates 3 arranged from top to bottom decreases progressively, facilitating multi-stage crushing of materials. The inner diameter of the filter holes is not limited and can be determined according to actual needs. An abrasive is provided above the filter plates 3. The abrasive unit includes: grinding rollers 4, grinding rollers 4 attached to both sides of the upper part of the filter plate 3, a vertical pipe 5 rotatably connected to the inner wall of the filter plate 3, the filter plate 3 being rotatably connected to the vertical pipe 5 via a sealed bearing, a portion of the vertical pipe 5 penetrating the housing 1, the vertical pipe 5 being rotatably connected to the housing 1 via a sealed bearing, a sleeve block 6 fitted onto the outer wall of the vertical pipe 5, the inner wall of the sleeve block 6 being clearance-fitted with the outer wall of the vertical pipe 5, clearance-fitting refers to a fit with clearance (including a minimum clearance equal to zero), a pair of sliding grooves 7 formed on the inner wall of the sleeve block 6, the internal sliding grooves 7 being... A slider 8 is attached, which can slide up and down inside the slide groove 7, but cannot move left, right, forward, or backward. The slider 8 is fixedly connected to the riser 5. A compression spring 30 is fixedly connected to the top of the sleeve block 6. The elastic coefficient of the compression spring 30 is not limited and can be determined according to the maximum torque that the motor 14 can withstand. The top of the compression spring 30 is fixedly connected to the sleeve plate 17. Round rods 9 are rotatably connected to both sides of the sleeve block 6. The round rods 9 are rotatably connected to the sleeve block 6 through sealed bearings. A tapered rod 10 is fixedly connected to the end of the round rod 9 away from the sleeve block 6. The end of the round rod 9 is fixedly connected to the grinding roller 4. A disc 11 is fixedly sleeved on the top of the outer wall of the riser 5. A gear ring 12 is fixedly connected to the upper surface of the disc 11. A gear 13 is meshed with the top of the gear ring 12. The output shaft of the motor 14 is fixedly connected to the inner wall of the gear 13. A bracket 15 is fixedly sleeved on the outer wall of the motor 14 housing. The bracket 15 is fixedly connected to the housing 1. The power cord of the motor 14 is connected to an external power supply device, which can provide the required power for the operation of the motor 14. The model of the motor 14 is not specific, as long as it meets the requirements for the operation of the machine.

[0023] Example 2: A housing 29 is provided on the outside of the motor 14. The housing 29 is fixedly connected to the box 1. Multiple through holes 21 are provided on both sides of the housing 29. The housing 29 can protect the workpiece inside. The through holes 21 can facilitate the heat dissipation of the motor 14 and the dustproof exhaust pump 26 inside the housing 29. The housing 29 is fixedly connected to the exhaust pipe 28 and the short pipe 20.

[0024] Example 3: A protective unit is provided on the outer side of the tapered rod 10. The protective unit includes: a vertical cylinder 16 sleeved on the outer side of the tapered rod 10; sleeve plates 17 fixedly connected to both ends of the vertical cylinder 16; the inner wall of the sleeve plates 17 fixedly connected to the vertical tube 5; the tapered rod 10 passes through the vertical cylinder 16 via a vertical groove 18; the tapered rod 10 can slide up and down inside the vertical groove 18; a bellows cover 19 is fixedly connected to the inner wall of the vertical groove 18. The bellows cover 19 is officially called a flexible bellows-type machine tool guide rail protective cover, commonly known as a bellows, named for its resemblance to an accordion. It is made of nylon cloth on the outside and supported by PVC board on the inside. Metal or plastic connecting frames are loaded at both ends for fixing. Each fold contains a PVC frame, which is processed in different ways. It is tightly connected to the external material and has no internal metal parts, so there is no need to worry about parts loosening and damaging the machine. It has the advantages of small compression and long stroke. The length ratio is 1:10, which is the most advanced form of folding cover. The inner wall of the bellows cover 19 is tightly abutted against the conical rod 10. If the material to be crushed is hard and the material splashing force inside the box 1 is large during crushing, a sleeve can be rotatably connected to the outer wall of the conical rod 10 through a sealed bearing. The sleeve is fixedly connected to the through surface of the bellows cover 19, which can enhance the sealing performance at the through point between the conical rod 10 and the bellows cover 19. This can prevent external impurities from entering the interior of the vertical cylinder 16 and facilitate long-term stable transmission operation between the various components inside the vertical cylinder 16.

[0025] Example 4: A cleaning unit is provided at the top of the riser 5. The cleaning unit includes a short pipe 20, which is rotatably connected to the top of the riser 5. A valve 22 is fixedly connected to the top of the short pipe 20, and an air injection pipe 23 is fixedly connected to the top of the valve 22. The top of the air injection pipe 23 is connected to the output pipe of an external high-pressure air supply device. Opening the valve 22 allows high-pressure air to be injected into the short pipe 20. A pair of branch pipes 24 are provided below the filter plate 3. The branch pipes 24 are fixedly connected to the riser 5 and are internally interconnected with the riser 5. Multiple one-way valves 25 are sequentially fixed to the top of the outer wall of the branch pipes 24 from front to back. The air inlets of the one-way valves 25 are internally interconnected with the branch pipes 24. A check valve, also known as a non-return valve, is a type of valve that allows fluid to flow in one direction while blocking flow in the opposite direction. When the check valve is fully closed, the fluid is blocked on both sides of the valve, forming a static isolation area, thus eliminating concerns about small materials entering the interior of the branch pipe 24. When the fluid flows from downstream to upstream of the check valve, the check valve will automatically open due to the pressure difference of the fluid. A dustproof air pump 26 is fixedly connected to the upper side of the housing 1 away from the feeding hopper 2. The dustproof air pump 26 is an air pumping device with air pumping function, and its design or application scenarios pay special attention to dustproof performance. The dustproof air pump is usually composed of a motor, pump head, valve, filter, etc. The motor is the power source, converting electrical energy into mechanical energy and transmitting it to the pump head. The pump head is responsible for drawing in and discharging gas. It contains blades and a gas chamber. Pressure changes are generated by the rotation of the blades. Valves control the direction of gas flow to ensure normal drawing in and discharging. The filter is used to filter impurities in the gas to prevent impurities from entering the pump and affecting its normal operation. The power cord of the dustproof pump 26 is connected to an external power supply device to provide the necessary electrical energy for its operation. A suction pipe 27 is fixedly connected to one side of the dustproof pump 26 and is fixedly connected to the housing 1. An exhaust pipe 28 is fixedly connected to the top of the dustproof pump 26 and is fixedly connected to the housing 29. The top of the exhaust pipe 28 is connected to an external waste disposal device or led to a distant location through other conduit structures.

[0026] Example 5: The top of the feeding hopper 2 is equipped with a movable door. During the process of blowing away the material blocking the surface of the filter plate 3, the movable door can be used to seal the top of the feeding hopper 2 to prevent smoke and dust from being discharged from the feeding hopper 2.

[0027] In use, firstly, an appropriate amount of material to be crushed is fed into the box 1 through the feeding hopper 2. The material falls and contacts the upper surface of the filter plate 3 at the top of the box 1. The motor 14 is started to make the vertical pipe 5 rotate. During this process, the grinding roller 4 revolves around the vertical pipe 5 and also rotates around the circular rod 9. During this process, the grinding roller 4 can crush the material on the upper surface of the filter plate 3. After the material is crushed, its volume is reduced, and it can fall down through the filter plate 3. The filter holes of the filter plate 3 inside the box 1 continuously decrease from top to bottom, which facilitates the crushing of materials. The crushing process proceeds in stages. During this process, when the grinding roller 4 passes through material stuck in the filter holes, the force exerted on the lower part of the outer wall of the grinding roller 4 towards the material increases significantly. At this time, the compression spring 30 undergoes compression deformation, and the sleeve block 6, round rod 9, square rod 10, and grinding roller 4 move upward. The grinding roller 4 will then roll over the stuck material from above, rather than being blocked and unable to move forward. This prevents the motor driving the grinding roller from being under high load, facilitating long-term stable operation of the machine. During this process, the vertical cylinder 16 and sleeve plate 17 can protect the internal structural components, in conjunction with the air intake installed on the inner wall of the vertical groove 18. The cover 19 effectively prevents particles generated during crushing from entering the interior of the vertical cylinder 16, facilitating long-term and stable transmission between the various components inside the vertical cylinder 16. After the material inside the chamber 1 has been crushed and discharged from the bottom of the chamber 1, the feeding of material into the chamber 1 is stopped. The valve 22 is opened, and high-pressure air is injected into the interior of the vertical pipe 5 through the air injection pipe 23. At the same time, the dustproof air extraction pump 27 and the motor 14 are started. The injected high-pressure air will be ejected from the top of the one-way valve 25 through the branch pipe 24. Air can be supplied to the bottom of the filter plate 3. The strong airflow blown out can cause the material blocked in the filter holes of the filter plate 3 to vibrate to a certain extent and be discharged from the filter holes. The operation of the dust extraction pump 27 can facilitate the smooth discharge of the air injected into the box 1 and facilitate the smooth injection of high-pressure air. The operation of the motor 14 can make the two branch pipes 24 revolve around the riser 5 as the center, which can carry out all-round air supply operation to the bottom of the filter plate 3, which can facilitate the thorough cleaning of the material blocked on the filter plate 3. After the cleaning is completed, the crushing operation can be carried out again.

[0028] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A multi-stage crushing and grinding vibratory mill, characterized in that, include: A box body (1) is provided, with a feeding hopper (2) fixedly connected to one side of the top of the box body (1). Multiple filter plates (3) are fixedly connected to the inner wall of the box body (1) from top to bottom. An abrasive unit is provided above the filter plates (3). The abrasive unit includes a grinding roller (4). Grinding rollers (4) are attached to both sides of the upper part of the filter plates (3). A vertical pipe (5) is rotatably connected to the inner wall of the filter plates (3). A part of the vertical pipe (5) penetrates the box body (1). The vertical pipe (5) is rotatably connected to the box body (1) through a sealed bearing. A sleeve block (6) is fitted on the outer wall of the vertical pipe (5). A pair of sliding grooves (7) are opened on the inner wall of the sleeve block (6). A slider (8) is slidably engaged inside the sliding groove (7). The slider (8) is connected to the vertical pipe. (5) Fixed connection, the top of the sleeve (6) is fixedly connected to a compression spring (30), both sides of the sleeve (6) are rotatably connected to a round rod (9), the end of the round rod (9) away from the sleeve (6) is fixedly connected to a tapered rod (10), the end of the tapered rod (10) away from the round rod (9) is fixedly connected to the grinding roller (4), the top of the outer wall of the riser (5) is fixedly sleeved with a disc (11), the upper surface of the disc (11) is fixedly connected to a toothed ring (12), the top of the toothed ring (12) is meshed with a gear (13), the inner wall of the gear (13) is fixedly connected to the output shaft of the motor (14), the outer wall of the motor (14) is fixedly sleeved with a bracket (15), and the bracket (15) is fixedly connected to the housing (1).

2. The multi-stage crushing and vibrating mill for powder production according to claim 1, characterized in that, The motor (14) has a box (29) on its outside. The box (29) is fixedly connected to the housing (1). Both sides of the box (29) have multiple through holes (21).

3. The multi-stage crushing and powder vibratory mill according to claim 1, characterized in that, The outer side of the tapered rod (10) is provided with a protective unit, which includes: a vertical tube (16) sleeved on the outer side of the tapered rod (10), and sleeve plates (17) fixedly connected to both ends of the vertical tube (16). The inner wall of the sleeve plate (17) is fixedly connected to the vertical pipe (5). The tapered rod (10) passes through the vertical tube (16) through the vertical groove (18). A bellows cover (19) is fixedly connected to the inner wall of the vertical groove (18). The inner wall of the bellows cover (19) abuts against the tapered rod (10).

4. A multi-stage crushing and powder vibrating mill according to claim 1, characterized in that, The top of the riser (5) is provided with a cleaning unit, which includes: a short pipe (20), the short pipe (20) being rotatably connected to the top of the riser (5), a valve (22) being fixedly connected to the top of the short pipe (20), an air injection pipe (23) being fixedly connected to the top of the valve (22), and a pair of branch pipes (24) being provided below the filter plate (3), the branch pipes (24) being fixedly connected to the riser (5), and the branch pipes (24) having... Multiple one-way valves (25) are fixedly connected to the top of the outer wall from front to back. A dustproof air pump (26) is fixedly connected to the top of the box (1) away from the feeding hopper (2). An air extraction pipe (27) is fixedly connected to one side of the dustproof air pump (26). The air extraction pipe (27) is fixedly connected to the box (1). An exhaust pipe (28) is fixedly connected to the top of the dustproof air pump (26). The exhaust pipe (28) is fixedly connected to the box (29).

5. A multi-stage crushing and powder vibrating mill according to claim 1, characterized in that, The top of the feeding hopper (2) is equipped with a movable door.

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