A ball mill screening device

Abstract

The application belongs to the technical field of ball mill screening, and particularly relates to a ball mill screening device, which comprises a lap joint fixing bottom plate, a high-frequency vibration ball mill screening unit is fixedly installed on the top surface of the lap joint fixing bottom plate, the high-frequency vibration ball mill screening unit comprises a high-frequency vibrator and a ball mill screening tank, a lifting unit is fixedly installed on the back surface of the lap joint fixing bottom plate, the lifting unit comprises a rotary lifter, and a ball mill grinding ball flow guide screening unit is detachably installed at one end of the rotary lifter. The raw materials and iron balls with different sizes and weights are put into the ball mill screening tank, the splash-proof movable shell is covered, the high-frequency vibrator is used to perform high-frequency vibration on the bottom surface of the ball mill screening tank, the raw materials and the iron balls in the ball mill screening tank are effectively resonated, and due to the different weights and sizes, a certain difference is generated between the ball bodies, so that the iron balls can be evenly distributed at different positions of the materials.

Description

Technical Field

[0001] This invention belongs to the field of ball mill screening technology, specifically a ball mill screening device. Background Technology

[0002] Ball mills are key equipment for further pulverizing materials after they have been crushed. This type of grinding mill uses a certain number of steel balls as grinding media inside its cylinder. It is widely used in the production industries of cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal ore beneficiation, and glass ceramics. It is used for dry or wet grinding of various ores and other grindable materials. Ball mills are suitable for grinding various ores and other materials and are widely used in mineral processing, building materials and chemical industries.

[0003] Chinese patent CN 21486432 discloses a ball mill discharge screening structure, including a ball mill, a ball mill discharge cylinder, a ball mill discharge cylinder on the right end face of the ball mill, and a ball mill discharge port on the right end face of the ball mill discharge cylinder. It also includes a screening circular screen, a guide box, and a telescopic mechanism. The screening circular screen is located at the ball mill discharge port, and a guide box is located below the screening circular screen. A feed inlet is opened on the top surface of the guide box, and an inclined baffle is provided on the top surface of the guide box. A scraper is provided on the inclined baffle. Rectangular openings are respectively opened on the left and right end faces of the guide box. A filter screen is installed inside the rectangular openings on the left and right end faces of the guide box. A telescopic mechanism is located on the left side of the guide box, and the telescopic mechanism includes an extension mechanism.

[0004] Currently, existing ball mills grind materials by using rotating steel balls to impact and crush them through their own weight. However, due to the large quantity and loose internal structure of the raw materials, the impact force of the iron balls is dispersed during impact, resulting in low efficiency as they can only crush the material on the top surface.

[0005] Therefore, the present invention provides a ball mill screening device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A ball mill screening device of the present invention includes an overlapping fixed base plate. A high-frequency vibrating ball mill screening unit is fixedly installed on the top surface of the overlapping fixed base plate. The high-frequency vibrating ball mill screening unit includes a high-frequency vibrator and a ball mill sieve tank. A lifting unit is fixedly installed on the back of the overlapping fixed base plate. The lifting unit includes a rotating lifter. A ball guiding screening unit is detachably installed at one end of the rotating lifter. The ball guiding screening unit includes a transmission track and a transmission device. A receiving screening unit is fixedly connected to the outer surface of the transmission track. The receiving screening unit includes a material receiving shell, fine slots, and gripping claws. A multi-screening unit is provided on the right side surface of the overlapping fixed base plate. The multi-screening unit includes a multi-screening plate, a vibration buffer, and a flow guiding plate.

[0008] Preferably, the outer surface of the material receiving sleeve is fixedly connected to the outer surface of the transmission track. A guide chute is provided at the inner corner of the material receiving sleeve, simultaneously working with the gripping claw on the top surface of the material receiving sleeve to excavate the material, digging up the iron ball and material. As it moves vertically upwards, the guide chute guides the raw material and iron ball to one end, while fine slots allow the powdery material to penetrate. The material at the higher position is then discharged through the discharge port, separating the raw material from the iron ball. The fine slots are located on the inner bottom wall of the material receiving sleeve, and a discharge port is located in the middle of the outer side of the material receiving sleeve. The gripping claw is located on the top outer surface of the material receiving sleeve. When the material receiving sleeve reaches its highest point and begins to rotate, the guide chute simultaneously guides the iron ball at an angle, increasing the angle and distance of the parabola, guiding it through the guide channel and outwards.

[0009] Preferably, a support frame is fixedly connected to the back of the overlapping fixed base plate, and the outer surface of the rotating lifter is fixedly installed at the top edge of the front of the support frame. A threaded slider is threadedly movably sleeved on the outer surface of the output end of the rotating lifter, and a raw material receiving sleeve is fixedly connected to the outer surface of the threaded slider.

[0010] Preferably, a transmission limiting roller is movably sleeved on the inner wall surfaces of the upper and lower sides of the raw material receiving shell, and the inner surface of the transmission track is movably sleeved on the outer surface of the transmission limiting roller.

[0011] Preferably, a limiting anti-jamming plate is fixedly connected to the inner wall of the raw material storage shell and is set in the middle of the transmission track. The transmission device is fixedly installed at the top left edge of the raw material storage shell. The output end of the transmission device is movably sleeved with a conveyor track set on the outer surface of one end of the transmission limiting roller. A guide channel is fixedly connected to the top right edge of the raw material storage shell.

[0012] Preferably, elastic buffer wires are fixedly connected to the four corners of the top of the overlapping fixed base plate, and a snap-fit ​​limiting collar is fixedly connected to one end of the elastic buffer wire. The high-frequency vibrator is fixedly installed at the top center of the overlapping fixed base plate. The output end of the high-frequency vibrator and the inner surface of the snap-fit ​​limiting collar are detachably installed on the outer and bottom surfaces of the ball mill screen jar. Raw materials and iron balls of different sizes and weights are placed inside the ball mill screen jar. The splash-proof movable cover is covered, and the high-frequency vibrator is used to vibrate the bottom surface of the ball mill screen jar at high frequency, so that the raw materials and iron balls inside resonate effectively. Due to the difference in weight and size, a certain drop will be generated between the balls, so that the iron balls can be evenly distributed in different positions of the material.

[0013] Preferably, a splash-proof movable sleeve is movably fitted onto the top surface of the ball mill screen jar. When the ball mill screen jar is vibrated by a high-frequency vibrator, the iron balls vibrate and crush the material. When the iron balls are vibrating, two iron balls that are relatively close to each other will also collide due to the vibration, thereby causing secondary impact crushing of the material. Furthermore, an opening and closing groove is provided on the outer surface of the splash-proof movable sleeve, which is movably fitted onto the outer surface of the raw material receiving sleeve.

[0014] Preferably, a support leg is provided on the right side surface of the overlapping fixed base plate, the bottom surface of the vibration damper is fixedly installed on the top surface of the support leg, and a second guide channel is fixedly connected to the guide of the vibration damper.

[0015] Preferably, overlapping limiting strips are fixedly connected to the inner walls on both sides of the second flow channel. Multiple screening plates are detachably installed on the top surface of the overlapping limiting strips. When the iron ball enters the interior of the second flow channel, it vibrates the second flow channel in conjunction with the vibration damper on the top surface of the support leg. When the iron ball slides, it is screened by multiple screening plates for iron balls of different sizes.

[0016] Preferably, a swing deceleration plate is oscillatingly sleeved on the right side surface of the multiple screening plate, and one side surface of the flow guide plate is fixedly connected to the bottom right surface of the flow guide channel two. When the flow guide channel two is vibrated by the vibration buffer, the residual dust on the surface of the iron ball is vibrated and cleaned. When sliding, the swing deceleration plate works with the sliding iron ball to impact and buffer it, and then the flow guide plate guides it out. Later, the splash-proof movable sleeve is opened to extract the raw material inside.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The ball mill screening device of the present invention involves placing raw materials and iron balls of different sizes and weights into the inside of the ball mill screen jar, covering it with a splash-proof movable cover, and using a high-frequency vibrator to vibrate the bottom surface of the ball mill screen jar at high frequency, so that the raw materials and iron balls inside resonate effectively. Due to the difference in weight and size, a certain drop will be generated between the balls, so that the iron balls can be evenly distributed in different positions of the material. Through the vibration of the ball mill screen jar by the high-frequency vibrator, the iron balls vibrate and crush the material. When the iron balls are vibrating, two iron balls that are relatively close to each other will also collide due to the vibration, thereby causing secondary impact crushing of the material. When the ball mill screen jar is vibrating, elastic buffer wires are used to provide elastic buffering at the various corners of its bottom.

[0019] 2. The ball mill screening device of the present invention, after crushing, is used in conjunction with a rotating lifting device to lower the raw material receiving shell, so that one end of the raw material receiving shell gradually extends into the interior of the material and iron balls. In conjunction with a transmission device to rotate the transmission limiting roller, the material receiving shell on the outer surface of the transmission limiting roller continuously digs inside the material. At the same time, the gripping claw on the top surface of the material receiving shell digs inside the material, thus digging up the iron balls and material.

[0020] 3. The ball mill screening device of the present invention, when moving vertically upward, uses a guide chute to guide the raw material and iron balls to one end, and uses fine grooves to penetrate the powdered material. The material that has accumulated to a higher position is then discharged through the discharge port. When the material collection shell reaches its highest point and begins to flip, the guide chute simultaneously guides the iron balls at an angle, increasing the angle and distance of the parabola, and guides them through the guide channel and out.

[0021] 4. In the ball mill screening device of the present invention, when the iron balls enter the interior of the guide channel two, the guide channel two is vibrated in conjunction with the vibration damper on the top surface of the support leg. When the iron balls slide, multiple multi-stage screening plates screen iron balls of different sizes. The vibration damper vibrates the guide channel two to clean the residual dust on the surface of the iron balls. When sliding, the swing deceleration plate impacts and buffers the sliding iron balls. Then, the guide plate guides the flow out. Finally, the splash-proof movable sleeve is opened to extract the raw materials inside. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a schematic diagram of the overlapping and fixing base plate retraction three-dimensional structure in this invention;

[0025] Figure 3 This is a cross-sectional three-dimensional structural diagram of the ball mill screen tank in this invention;

[0026] Figure 4 This is a three-dimensional cross-sectional view of the overlapping and fixing base plate in this invention;

[0027] Figure 5 This is a cross-sectional three-dimensional structural diagram of the raw material storage shell in this invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the material storage shell in this invention;

[0029] Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the flow guiding channel two in this invention;

[0030] Figure 8 This is a schematic diagram of the extended three-dimensional structure of the flow guiding channel in this invention.

[0031] In the diagram: 11. Overlapping fixed base plate; 12. Elastic buffer wire; 13. Snap-fit ​​limiting collar; 14. High-frequency vibrator; 15. Ball mill screen tank; 16. Anti-splash movable sleeve; 17. Support frame; 18. Rotary lifting device; 19. Raw material storage sleeve; a1. Transmission limiting roller; a2. Transmission track; a3. Limiting anti-jamming plate; a4. Transmission device; a5. Guide channel one; a6. Material storage sleeve; a7. Guide chute; a8. Fine groove hole; a9. Gripping claw; a10. Discharge port;

[0032] 110. Support leg; 111. Vibration damper; 112. Second flow guide channel; 113. Overlapping limit strip; 114. Multiple screening plate; 115. Swing speed reduction plate; 116. Flow guide plate. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 8As shown, an embodiment of the ball mill screening device of the present invention includes an overlapping and fixed base plate 11. A high-frequency vibrating ball mill screening unit is fixedly installed on the top surface of the overlapping and fixed base plate 11. The high-frequency vibrating ball mill screening unit includes a high-frequency vibrator 14 and a ball mill sieve tank 15. A lifting unit is fixedly installed on the back of the overlapping and fixed base plate 11. The lifting unit includes a rotating lifter 18. A ball guiding and screening unit is detachably installed at one end of the rotating lifter 18. The ball guiding and screening unit includes a transmission track a2 and a transmission device a4. A receiving and screening unit is fixedly connected to the outer surface of the transmission track a2. The receiving and screening unit includes a material receiving shell a6 and fine slots a8. Along with the gripper a9, a multi-screening unit is provided on the right side surface of the fixed base plate 11. The multi-screening unit includes a multi-screening plate 114, a vibration damper 111, and a flow guide plate 116. The outer surface of the material receiving sleeve a6 is fixedly connected to the outer surface of the transmission track a2. A flow guide groove a7 is provided at the inner corner of the material receiving sleeve a6. At the same time, the gripper a9 on the top surface of the material receiving sleeve a6 digs inside the material, digging up the iron ball and material. When moving vertically upward, the flow guide groove a7 guides the raw material and iron ball to one end, and the fine groove a8 penetrates the powdery material. The material is then discharged from the higher position through the discharge port a10. A fine groove a8 is formed on the inner bottom wall of the material receiving sleeve a6. In conjunction with the transmission device a4, the transmission limiting roller a1 rotates, causing the material receiving sleeve a6 on the outer surface of the transmission limiting roller a1 to continuously excavate inside the material. The discharge port a10 is located in the middle of the outer side of the material receiving sleeve a6. The gripping claw a9 is located on the top outer surface of the material receiving sleeve a6. When the material receiving sleeve a6 reaches its highest point and begins to rotate, it simultaneously guides the iron ball at an angle through the guide chute a7, increasing the angle and distance of the parabola. The material is guided out through the guide channel a5. The transmission limiting roller a1 is movably sleeved on the inner walls of the upper and lower sides of the raw material receiving shell 19. The inner surface of the transmission track a2 is movably sleeved on the outer surface of the transmission limiting roller a1. The limiting anti-jamming plate a3 is fixedly connected to the inner wall of the raw material receiving shell 19 and is set in the middle position of the transmission track a2. The transmission device a4 is fixedly installed at the top left edge of the raw material receiving shell 19. The output end of the transmission device a4 is movably sleeved on the outer surface of one end of the transmission limiting roller a1. The guide channel a5 is fixedly connected to the top right edge of the raw material receiving shell 19.

[0035] like Figures 1 to 8As shown, a support frame 17 is fixedly connected to the back of the overlapping fixed base plate 11. The outer surface of the rotating lifter 18 is fixedly installed on the top edge of the front of the support frame 17. A threaded slider is threadedly fitted onto the outer surface of the output end of the rotating lifter 18. A raw material receiving shell 19 is fixedly connected to the outer surface of the threaded slider. After crushing, the rotating lifter 18 rotates to lower the raw material receiving shell 19, gradually extending one end of the raw material receiving shell 19 into the interior of the material and iron balls. Elastic buffer wires 12 are fixedly connected to the four corners of the top of the overlapping fixed base plate 11. A locking limit collar 13 is fixedly connected to one end of the elastic buffer wire 12. The high-frequency vibrator 14 is fixedly installed at the top center of the overlapping fixed base plate 11. The output end of the high-frequency vibrator 14 and the inner surface of the locking limit collar 13 are detachably installed on the outer and bottom surfaces of the ball mill screen jar 15. The raw material and iron balls of different sizes and weights are then fed into the mill. The material is placed inside the ball mill screen jar 15, and the splash guard 16 is placed on top. The bottom surface of the ball mill screen jar 15 is vibrated at high frequency by the high-frequency vibrator 14, so that the raw material and the iron balls inside resonate effectively. Due to the difference in weight and size, there will be a certain drop between the balls, so that the iron balls can be evenly distributed in different positions of the material. The splash guard 16 is movably fitted on the top surface of the ball mill screen jar 15. When the ball mill screen jar 15 is vibrated by the high-frequency vibrator 14, the iron balls vibrate and crush the material. When the iron balls are vibrating, two iron balls that are close to each other will also collide due to the vibration, thus crushing the material a second time. The outer surface of the splash guard 16 has an opening and closing slot that is movably fitted on the outer surface of the raw material receiving shell 19. When the ball mill screen jar 15 is vibrating, the elastic buffer wire 12 provides elastic cushioning to the various corners of its bottom.

[0036] like Figures 1 to 8As shown, a support leg 110 is provided on the right side surface of the overlapping fixed base plate 11. The bottom surface of the vibration buffer 111 is fixedly installed on the top surface of the support leg 110. A flow channel 2 112 is fixedly connected to the flow channel 111. Overlapping limiting strips 113 are fixedly connected to the inner walls on both sides of the flow channel 2 112. A multi-screening plate 114 is detachably installed on the top surface of the overlap limiting strip 113. When the iron ball enters the interior of the flow channel 2 112, it vibrates the flow channel 2 112 in conjunction with the vibration buffer 111 on the top surface of the support leg 110. When the iron ball slides... In the process, multiple multi-screening plates 114 are used to screen iron balls of different sizes. A swing deceleration plate 115 is oscillatingly sleeved on the right side surface of the multi-screening plate 114. One side surface of the flow guide plate 116 is fixedly connected to the bottom right side surface of the flow channel 2 112. The flow channel 2 112 is vibrated by the vibration buffer 111 to vibrate and clean the residual dust on the surface of the iron balls. When sliding, the swing deceleration plate 115 is used to impact and buffer the sliding iron balls, and then the flow guide plate 116 guides them out. Later, the splash-proof movable sleeve 16 is opened to extract the raw materials inside.

[0037] Working principle: Raw materials and iron balls of different sizes and weights are placed inside the ball mill screen jar 15, and the splash-proof movable cover 16 is covered. The bottom surface of the ball mill screen jar 15 is vibrated at high frequency by the high-frequency vibrator 14, so that the raw materials and iron balls inside resonate effectively. Due to the difference in weight and size, a certain drop will be generated between the balls, so that the iron balls can be evenly distributed in different positions of the material. Through the vibration of the ball mill screen jar 15 by the high-frequency vibrator 14, the iron balls vibrate and crush the material. When the iron balls are vibrating, two iron balls that are close to each other will also collide due to the vibration, thus crushing the material a second time. When the ball mill screen jar 15 is vibrating, the elastic buffer wire 12 provides elastic buffering at the various corners of the bottom.

[0038] After crushing, the material receiving shell 19 is lowered by rotating the lifting device 18, gradually extending one end of the material receiving shell 19 into the interior of the material and iron ball. In conjunction with the transmission device a4, the transmission limiting roller a1 is rotated, causing the material receiving shell a6 on the outer surface of the transmission limiting roller a1 to continuously dig inside the material. At the same time, the gripping claw a9 on the top surface of the material receiving shell a6 digs inside the material, excavating the iron ball and material.

[0039] When moving vertically upwards, the guide chute a7 guides the raw material and iron balls to one end, while the fine groove a8 allows the powdered material to penetrate. The material that has accumulated to a higher position is then discharged through the discharge port a10. When the material collection shell a6 reaches its highest point and begins to flip, the guide chute a7 simultaneously guides the iron balls at an angle, increasing the angle and distance of the parabola, and guides them through the guide channel a5.

[0040] When the iron ball enters the second flow channel 112, the vibration damper 111 on the top surface of the support leg 110 vibrates the second flow channel 112. When the iron ball slides, multiple multi-screening plates 114 screen the iron balls of different sizes. The vibration damper 111 vibrates the second flow channel 112 to clean the residual dust on the surface of the iron ball. When sliding, the swing deceleration plate 115 impacts and buffers the sliding iron ball. Then, the flow guide plate 116 guides it out. Later, the splash-proof movable sleeve 16 is opened to extract the raw material inside.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball mill screening device, characterized in that: The system includes an overlapping fixed base plate (11), on the top surface of which a high-frequency vibrating ball mill screening unit is fixedly installed. The high-frequency vibrating ball mill screening unit includes a high-frequency vibrator (14) and a ball mill sieve tank (15). A lifting unit is fixedly installed on the back of the overlapping fixed base plate (11). The lifting unit includes a rotating lifter (18). A ball milling guide screening unit is detachably installed at one end of the rotating lifter (18). The ball milling guide screening unit includes a transmission track (a2) and a transmission device (a4). A collection screening unit is fixedly connected to the outer surface of the transmission track (a2). The collection screening unit includes a material collection shell (a6), a fine slot (a8), and a gripping claw (a9). A multi-screening unit is provided on the right side surface of the overlapping fixed base plate (11). The multi-screening unit includes a multi-screening plate (114), a vibration buffer (111), and a flow guide plate (116). The outer surface of the material storage shell (a6) is fixedly connected to the outer surface of the transmission track (a2). A guide groove (a7) is provided at the inner corner of the material storage shell (a6). The fine groove (a8) is opened on the inner bottom wall of the material storage shell (a6). A discharge port (a10) is opened at the middle position of the outer side of the material storage shell (a6). The gripping claw (a9) is located on the outer top surface of the material storage shell (a6). A support frame (17) is fixedly connected to the back of the overlapping fixed base plate (11). The outer surface of the rotating lifter (18) is fixedly installed on the top edge of the front of the support frame (17). A threaded slider is threadedly connected to the outer surface of the output end of the rotating lifter (18). A raw material receiving shell (19) is fixedly connected to the outer surface of the threaded slider.

2. The ball mill screening device according to claim 1, characterized in that: The upper and lower inner walls of the raw material storage shell (19) are movably fitted with transmission limiting rollers (a1), and the inner surface of the transmission track (a2) is movably fitted on the outer surface of the transmission limiting rollers (a1).

3. The ball mill screening device according to claim 2, characterized in that: The inner wall of the raw material storage shell (19) is fixedly connected to a limiting anti-jamming plate (a3) ​​set in the middle of the transmission track (a2). The transmission device (a4) is fixedly installed at the top left edge of the raw material storage shell (19). The output end of the transmission device (a4) is movably sleeved with a conveyor track set on the outer surface of one end of the transmission limiting roller (a1). The top right edge of the raw material storage shell (19) is fixedly connected to a guide channel (a5).

4. The ball mill screening device according to claim 1, characterized in that: Elastic buffer wires (12) are fixedly connected to the four corners of the top of the overlapping fixed base plate (11). A snap-fit ​​limiting collar (13) is fixedly connected to one end of the elastic buffer wire (12). The high-frequency vibrator (14) is fixedly installed at the middle position of the top of the overlapping fixed base plate (11). The output end of the high-frequency vibrator (14) and the inner surface of the snap-fit ​​limiting collar (13) are detachably installed on the outer and bottom surfaces of the ball mill screen tank (15).

5. A ball mill screening device according to claim 4, characterized in that: The top surface of the ball mill screen tank (15) is movably fitted with a splash-proof movable sleeve (16), and the outer surface of the splash-proof movable sleeve (16) is provided with an opening and closing groove that is movably fitted onto the outer surface of the raw material receiving sleeve (19).

6. The ball mill screening device according to claim 1, characterized in that: A support leg (110) is provided on the right side surface of the overlapping fixed base plate (11), and the vibration buffer (111) is fixedly installed on the top surface of the support leg (110) on the bottom surface. A flow channel two (112) is fixedly connected to the flow channel of the vibration buffer (111).

7. A ball mill screening device according to claim 6, characterized in that: The inner walls on both sides of the flow channel 2 (112) are fixedly connected with overlapping limiting strips (113), and multiple screening plates (114) are detachably installed on the top surface of the overlapping limiting strips (113).

8. A ball mill screening device according to claim 7, characterized in that: A swing deceleration plate (115) is oscillatingly sleeved on the right side surface of the multiple screening plate (114), and a flow guide plate (116) is fixedly connected to the right bottom surface of the flow guide channel two (112) on one side surface.

Images