Rolling ball mill with cyclic multi-polishing structure

Abstract

The application discloses a rolling ball mill with a cyclic multi-time grinding structure and relates to the technical field of rolling ball mills.The rolling ball mill comprises a grinding mechanism, a driving mechanism is connected to a driving end of the grinding mechanism, and a supporting mechanism is connected to a supporting end of the grinding mechanism.The grinding mechanism comprises a crushing and grinding unit and a screening unit.The crushing and grinding unit is used for crushing and grinding raw materials, and crushed and ground raw material particles enter the screening unit.The screening unit is used for screening raw material particles and feeding unqualified raw material particles into the crushing and grinding unit again.In the application, the crushing and grinding unit performs crushing and grinding while discharging material to the screening unit, and the screening unit performs screening while discharging material and feeds unqualified raw material into the crushing and grinding unit again to perform grinding, so that the screening of the discharged raw material particles is not needed, work efficiency is improved, and production quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of rolling ball mill technology, and in particular to a rolling ball mill with a cyclic multiple grinding structure. Background Technology

[0002] Ball mills are key equipment for further pulverizing materials after they have been crushed. They are widely used in the production of cement, silicate products, new building materials, refractory materials, fertilizers, non-ferrous metal ore beneficiation, and glass ceramics, for dry grinding of various ores and other grindable materials.

[0003] Currently, existing rolling ball mills consist of a crushing chamber, a motor, steel balls, and a cover plate. During operation, the motor drives the crushing chamber and steel balls to rotate, and the raw materials are crushed and ground through the collision between the steel balls and the raw materials. After working for a period of time, the material is discharged directly. However, some raw material particles still do not meet the standards, making it difficult to guarantee production quality. If the discharged raw material particles are screened and the unqualified raw material particles are put back into the crushing chamber for crushing and grinding, it will not only increase the working time, but also still result in the problem that some raw material particles do not meet the standards.

[0004] Therefore, there is an urgent need for a rolling ball mill with a cyclic, multi-stage grinding structure. Summary of the Invention

[0005] In view of this, the present invention provides a rolling ball mill with a cyclic multiple grinding structure to solve the problems mentioned in the background art.

[0006] A rolling ball mill with a multiple-cycle grinding structure includes a grinding mechanism. The driving end of the grinding mechanism is connected to a driving mechanism, and the supporting end of the grinding mechanism is connected to a supporting mechanism. The grinding mechanism includes a crushing and grinding unit and a screening unit. The crushing and grinding unit is used to crush and grind the raw material. The crushed and ground raw material particles enter the screening unit, which is used to screen the raw material particles and put the unqualified raw material particles back into the crushing and grinding unit.

[0007] Furthermore, the crushing and grinding unit includes an inner cylinder, on which a plurality of conical channels are uniformly provided, the inner diameter of the conical channels being smaller than the outer diameter.

[0008] Furthermore, the grinding mechanism also includes an outer cylinder, inside which are provided two fixed arc-shaped blocks. The inner diameter of the fixed arc-shaped blocks is the same as the outer diameter of the inner cylinder, and the two fixed arc-shaped blocks are respectively disposed on the front and rear sides of the inner cylinder.

[0009] Furthermore, the screening unit includes a screening ring, the inner diameter of which is the same as the outer diameter of the fixed arc block, and the outer diameter of which is the same as the inner diameter of the outer cylinder. The screening ring includes two screening arc blocks and two connecting arc blocks. The arc of the screening arc blocks, the connecting arc blocks, and the fixed arc blocks are all the same, and the screening arc blocks and the connecting arc blocks are spaced apart.

[0010] Furthermore, the screening arc block is provided with a screening cavity, and the inner side of the screening arc block is provided with a plurality of screening holes that communicate with the screening cavity, and the outer side is provided with a plurality of discharge holes that communicate with the screening cavity. The diameter of the discharge hole is smaller than the diameter of the screening hole, and the diameter of the screening hole is the same as the inner diameter of the conical channel.

[0011] Furthermore, the driving mechanism includes a driving base, a motor slot is provided in the driving base, a driving motor is fixedly installed in the motor slot, a main shaft is fixedly connected to the output end of the driving motor, and a driving disk adapted to the inner cylinder is rotatably installed on the inner side of the drive end wall of the outer cylinder. The outer side of the driving disk is fixedly connected to the main shaft, and the inner side is fixedly connected to the drive end of the inner cylinder.

[0012] Furthermore, the driving mechanism also includes a transmission shaft, one end of which is rotatably connected to the drive seat, and the other end of which is rotatably connected to the drive end wall of the outer cylinder. A sleeve adapted to the screening ring is fitted on the main shaft, and the sleeve is rotatably connected to the main shaft. A drive ring is rotatably disposed on the outer side of the drive end wall of the outer cylinder, the outer side of which is fixedly connected to the sleeve, and the inner side of which is fixedly connected to the drive end of the screening ring. A first gear is fixedly fitted on the end of the main shaft near the drive motor, and a second gear is fixedly fitted on the transmission shaft near the first gear. The first gear and the second gear are connected by a first transmission chain. A third gear is fixedly fitted on the sleeve, and a fourth gear is fixedly fitted on the transmission shaft near the third gear. The third gear and the fourth gear are connected by a second transmission chain.

[0013] Furthermore, the support mechanism includes a support base, the end wall of the outer cylinder support end is fixedly connected to the support base, the support base is rotatably provided with a support plate adapted to the inner cylinder and a support ring adapted to the screening ring, the inner cylinder support end passes through the end wall of the outer cylinder support end and is fixedly connected to the support plate, the screening ring support end passes through the end wall of the outer cylinder support end and is fixedly connected to the support ring, and the fixed arc-shaped block support end passes through the end wall of the outer cylinder support end and is fixedly connected to the support base.

[0014] Furthermore, an arc-shaped discharge gate is detachably connected to the bottom of the outer cylinder, and the arc of the arc-shaped discharge gate is the same as the arc of the screening arc block.

[0015] The beneficial effects of this invention are as follows:

[0016] In this invention, the crushing and grinding unit simultaneously crushes and grinds the material and discharges it to the screening unit. The screening unit simultaneously screens the discharged material and re-feeds any unqualified raw material particles back into the crushing and grinding unit for further grinding, eliminating the need for further screening of the discharged particles. This improves work efficiency and ensures production quality. Multiple conical channels are evenly distributed on the inner cylinder's circumferential wall. The crushed and ground raw material particles are discharged through these conical channels. The inner diameter of the conical channels is smaller than the outer diameter to prevent particle blockage. The particles discharged from the conical channels enter the screening chamber through screening holes. Qualified particles in the screening chamber are discharged through the discharge holes. The drive motor drives the main shaft to rotate, which in turn drives the drive disc to rotate the inner cylinder. The rotation of the main shaft drives the first gear to rotate, which in turn drives the drive shaft to rotate under the action of the first transmission chain. Under the action of the second transmission chain, the sleeve rotates, which in turn drives the drive ring to rotate the screening ring. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a rolling ball mill with a cyclic multiple grinding structure according to the present invention.

[0019] Figure 2 This is a schematic diagram of the grinding mechanism in this invention.

[0020] Figure 3 This is a schematic diagram of the support mechanism in this invention.

[0021] In the figure:

[0022] 1. Outer cylinder; 11. Arc-shaped discharge gate; 2. Screening ring; 21. Screening arc block; 22. Connecting arc block; 211. Screening chamber; 212. Screening hole; 213. Discharge hole; 3. Fixed arc block; 4. Inner cylinder; 41. Conical channel; 5. Drive seat; 51. Motor slot; 6. Drive motor; 61. Main shaft; 62. Sleeve; 63. First transmission chain; 64. Second transmission chain; 65. Transmission shaft; 66. Drive ring; 67. Drive disc; 7. Support seat; 71. Support disc; 72. Support ring. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0028] See appendix Figure 1-3This invention discloses a rolling ball mill with a multiple-cycle grinding structure, including a grinding mechanism. The driving end of the grinding mechanism is connected to a driving mechanism, and the supporting end of the grinding mechanism is connected to a supporting mechanism. The grinding mechanism includes a crushing and grinding unit and a screening unit. The crushing and grinding unit is used to crush and grind the raw material. The crushed and ground raw material particles enter the screening unit, which is used to screen the raw material particles and put the unqualified raw material particles back into the crushing and grinding unit.

[0029] In this embodiment, the crushing and grinding unit crushes and grinds the material while simultaneously feeding it into the screening unit. The screening unit screens the material while simultaneously feeding any unqualified raw material particles back into the crushing and grinding unit for further grinding. This eliminates the need to screen the already discharged raw material particles, thus improving work efficiency and ensuring production quality.

[0030] The crushing and grinding unit includes an inner cylinder 4, and multiple conical channels 41 are evenly provided on the periphery of the inner cylinder 4. The inner diameter of the conical channel 41 is smaller than the outer diameter.

[0031] In this embodiment, the raw material particles that have been crushed and ground are discharged through the conical channel 41. The inner diameter of the conical channel 41 is smaller than the outer diameter to prevent the raw material particles from clogging the conical channel 41.

[0032] The grinding mechanism also includes an outer cylinder 1, inside which are two fixed arc-shaped blocks 3. The inner diameter of the fixed arc-shaped blocks 3 is the same as the outer diameter of the inner cylinder 4. The two fixed arc-shaped blocks 3 are respectively located on the front and rear sides of the inner cylinder 4.

[0033] The screening unit includes a screening ring 2, the inner diameter of which is the same as the outer diameter of the fixed arc block 3, and the outer diameter of which is the same as the inner diameter of the outer cylinder 1. The screening ring 2 includes two screening arc blocks 21 and two connecting arc blocks 22. The arc of the screening arc block 21, the connecting arc block 22 and the fixed arc block 3 are all the same, and the screening arc block 21 and the connecting arc block 22 are spaced apart.

[0034] The screening arc block 21 has a screening chamber 211 inside. Multiple screening holes 212 that connect to the screening chamber 211 are evenly arranged on the inner side of the screening arc block 21. Multiple discharge holes 213 that connect to the screening chamber 211 are evenly arranged on the outer side. The diameter of the discharge hole 213 is smaller than the diameter of the screening hole 212. The diameter of the screening hole 212 is the same as the inner diameter of the conical channel 41.

[0035] In this embodiment, the diameter of the discharge hole 213 is the qualified size of the raw material particles (within the range of allowable accuracy, it can also be slightly larger than the qualified size of the raw material particles). The raw material particles discharged from the conical channel 41 enter the screening chamber 211 through the screening hole 212, and the qualified raw material particles in the screening chamber 211 are discharged from the discharge hole 213.

[0036] The drive mechanism includes a drive base 5, a motor slot 51 is provided in the drive base 5, a drive motor 6 is fixedly provided in the motor slot 51, and a main shaft 61 is fixedly connected to the output end of the drive motor 6. A drive disc 67 adapted to the inner cylinder 4 is rotatably provided on the inner side of the drive end wall of the outer cylinder 1. The outer side of the drive disc 67 is fixedly connected to the main shaft 61, and the inner side is fixedly connected to the drive end of the inner cylinder 4.

[0037] In this embodiment, the drive motor 6 drives the main shaft 61 to rotate, thereby causing the drive disk 67 to rotate the inner cylinder 4.

[0038] The drive mechanism also includes a drive shaft 65, one end of which is rotatably connected to the drive seat 5, and the other end is rotatably connected to the drive end wall of the outer cylinder 1. A sleeve 62 adapted to the screening ring 2 is fitted on the main shaft 61, and the sleeve 62 is rotatably connected to the main shaft 61. A drive ring 66 is rotatably arranged on the outer side of the drive end wall of the outer cylinder 1. The outer side of the drive ring 66 is fixedly connected to the sleeve 62, and the inner side is fixedly connected to the drive end of the screening ring 2. A first gear is fixedly fitted on the end of the main shaft 61 near the drive motor 6, and a second gear is fixedly fitted on the drive shaft 65 near the first gear. The first gear and the second gear are connected by a first transmission chain 63. A third gear is fixedly fitted on the sleeve 62, and a fourth gear is fixedly fitted on the drive shaft 65 near the third gear. The third gear and the fourth gear are connected by a second transmission chain 64.

[0039] In this embodiment, the main shaft 61 rotates, driving the first gear to rotate. Under the action of the first transmission chain 63, the transmission shaft 65 rotates. Under the action of the second transmission chain 64, the sleeve 62 rotates, thereby causing the drive ring 66 to drive the screening ring 2 to rotate. The transmission ratio can be changed by replacing the dimensions of the first gear, the second gear, the third gear, and the fourth gear.

[0040] The support mechanism includes a support base 7. The support end wall of the outer cylinder 1 is fixedly connected to the support base 7. The support base 7 is rotatably provided with a support plate 71 that is adapted to the inner cylinder 4 and a support ring 72 that is adapted to the screening ring 2. The support end of the inner cylinder 4 passes through the support end wall of the outer cylinder 1 and is fixedly connected to the support plate 71. The support end of the screening ring 2 passes through the support end wall of the outer cylinder 1 and is fixedly connected to the support ring 72. The support end of the fixed arc block 3 passes through the support end wall of the outer cylinder 1 and is fixedly connected to the support base 7.

[0041] The bottom of the outer cylinder 1 is detachably connected to an arc-shaped discharge gate 11. The arc of the arc-shaped discharge gate 11 is the same as the arc of the screening arc block 21, which facilitates material discharge.

[0042] Working principle of this embodiment:

[0043] First, place the raw material in the inner cylinder 4, adjust the speed ratio between the main shaft 61 and the sleeve 62 so that the speed of the screening ring 2 is lower than that of the inner cylinder 4, then open the discharge door 11 and turn on the drive motor 6. The inner cylinder 4 and the screening ring 2 rotate at the same time, and the steel balls in the inner cylinder 4 collide with the raw material to crush and grind the raw material until some of the raw material particles can be discharged through the conical channel 41.

[0044] Under the influence of gravity, most of the raw material particles are discharged from the conical channel 41 at the bottom of the inner cylinder 4 to the gap between the bottom of the inner cylinder 4 and the bottom of the screening ring 2. When the screening arc block 21 rotates to the gap, the raw material particles enter the screening chamber 211 through the screening hole 212. As the screening ring 2 continues to rotate, the qualified raw material particles in the screening chamber 211 are discharged through the discharge hole 213. Since the discharge door 11 has been opened, the qualified raw material particles can fall directly into the existing collection mechanism placed at the bottom of the outer cylinder, while the unqualified raw material particles are still placed in the screening chamber 211.

[0045] The screening ring 2 continues to rotate until the screening arc block 21, which was previously located at the bottom, rotates to the gap between the top of the inner cylinder 4 and the top of the screening ring 2. At this point, the screening holes 212 of the screening arc block 21 face downwards. The unqualified raw material particles in the screening chamber 211 of the screening arc block 21 fall into the gap between the top of the inner cylinder 4 and the top of the screening ring 2 through the screening holes 212, and then enter the inner cylinder 4 through the conical channel 41 for further crushing and grinding. At the same time, another screening arc block 21 rotates to the gap between the bottom of the inner cylinder 4 and the bottom of the screening ring 2 to screen and discharge the raw material particles discharged from the conical channel 41 at the bottom of the inner cylinder 4.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rolling ball mill with a multiple-cycle grinding structure, characterized in that, The device includes a grinding mechanism, with a driving mechanism connected to the driving end of the grinding mechanism and a supporting mechanism connected to the supporting end of the grinding mechanism. The grinding mechanism includes a crushing and grinding unit and a screening unit. The crushing and grinding unit is used to crush and grind the raw material. The crushed and ground raw material particles enter the screening unit, which is used to screen the raw material particles and put the unqualified raw material particles back into the crushing and grinding unit. The crushing and grinding unit includes an inner cylinder (4), and a plurality of conical channels (41) are uniformly provided on the peripheral wall of the inner cylinder (4). The inner diameter of the conical channel (41) is smaller than the outer diameter. The grinding mechanism also includes an outer cylinder (1), and two fixed arc blocks (3) are provided inside the outer cylinder (1). The inner diameter of the fixed arc blocks (3) is the same as the outer diameter of the inner cylinder (4). The two fixed arc blocks (3) are respectively located on the front and rear sides of the inner cylinder (4). The screening unit includes a screening ring (2), the inner diameter of which is the same as the outer diameter of the fixed arc block (3), the outer diameter of which is the same as the inner diameter of the outer cylinder (1), the screening ring (2) includes two screening arc blocks (21) and two connecting arc blocks (22), the arc of which, ... The screening arc block (21) is provided with a screening cavity (211). The inner side of the screening arc block (21) is provided with a plurality of screening holes (212) that communicate with the screening cavity (211). The outer side is provided with a plurality of discharge holes (213) that communicate with the screening cavity (211). The diameter of the discharge hole (213) is smaller than the diameter of the screening hole (212). The diameter of the screening hole (212) is the same as the inner diameter of the conical channel (41).

2. A rolling ball mill with a multiple-cycle grinding structure according to claim 1, characterized in that, The driving mechanism includes a driving base (5), a motor slot (51) is provided in the driving base (5), a driving motor (6) is fixedly provided in the motor slot (51), and a main shaft (61) is fixedly connected to the output end of the driving motor (6). A driving disk (67) adapted to the inner cylinder (4) is rotatably provided on the inner side of the driving end wall of the outer cylinder (1). The outer side of the driving disk (67) is fixedly connected to the main shaft (61), and the inner side is fixedly connected to the driving end of the inner cylinder (4).

3. A rolling ball mill with a multiple-cycle grinding structure according to claim 2, characterized in that, The driving mechanism also includes a transmission shaft (65), one end of which is rotatably connected to the drive seat (5), and the other end is rotatably connected to the drive end wall of the outer cylinder (1). A sleeve (62) adapted to the screening ring (2) is sleeved on the main shaft (61), and the sleeve (62) is rotatably connected to the main shaft (61). A drive ring (66) is rotatably disposed on the outer side of the drive end wall of the outer cylinder (1), and the outer side of the drive ring (66) is fixedly connected to the sleeve (62), while the inner side is fixedly connected to the screening ring (2). The drive end is fixedly connected. A first gear is fixedly sleeved on the end of the main shaft (61) near the drive motor (6). A second gear is fixedly sleeved on the drive shaft (65) near the first gear. The first gear and the second gear are connected by a first transmission chain (63). A third gear is fixedly sleeved on the sleeve (62). A fourth gear is fixedly sleeved on the drive shaft (65) near the third gear. The third gear and the fourth gear are connected by a second transmission chain (64).

4. A rolling ball mill with a multiple-cycle grinding structure according to claim 1, characterized in that, The support mechanism includes a support base (7), the support end wall of the outer cylinder (1) is fixedly connected to the support base (7), the support base (7) is rotatably provided with a support disk (71) adapted to the inner cylinder (4) and a support ring (72) adapted to the screening ring (2), the support end of the inner cylinder (4) passes through the support end wall of the outer cylinder (1) and is fixedly connected to the support disk (71), the support end of the screening ring (2) passes through the support end wall of the outer cylinder (1) and is fixedly connected to the support ring (72), and the support end of the fixed arc block (3) passes through the support end wall of the outer cylinder (1) and is fixedly connected to the support base (7).

5. A rolling ball mill with a multiple-cycle grinding structure according to claim 1, characterized in that, The bottom of the outer cylinder (1) is detachably connected to an arc-shaped discharge door (11), the arc of which is the same as the arc of the screening arc block (21).

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