Multistage ball-milling crusher for fine iron powder
By designing a multi-stage ball mill crusher for iron concentrate with coordinated movement of slide bars and dispersion bars, the problem of equipment blockage caused by excessively rapid influx of iron concentrate was solved, achieving uniform dispersion and efficient grinding of iron concentrate, thereby improving product quality and production efficiency.
Patent Information
- Application Number
- CN202520371862.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The existing multi-stage ball mill crusher for iron concentrate lacks effective control in the feeding process, which leads to iron concentrate entering too quickly, easily clogging the equipment, affecting the balance of the grinding and crushing processes, resulting in uneven particle size and substandard purity, and reducing product quality and production efficiency.
A multi-stage ball mill crusher for iron concentrate was designed. Through the coordinated movement of the slide bar and the dispersing bar, the iron concentrate is evenly dispersed into the feed trough. The inclined design of the grinding and crushing tank and the multi-stage screen structure ensure the orderly grinding and secondary grinding of the iron concentrate, avoid clogging, and improve product purity and production efficiency.
This technology achieves uniform dispersion and efficient grinding of iron concentrate, prevents equipment blockage, improves product quality and production efficiency, and ensures the high purity and economic benefits of iron concentrate.
Smart Images
Figure CN223915530U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to iron concentrate powder ball mill crusher technical field more specifically, the utility model relates to a kind of iron concentrate powder multistage ball mill crusher. BACKGROUND
[0002] Iron concentrate powder as important raw material in industrial production, from iron ore is finely processed by breaking, grinding, beneficiation etc., it is the main component of pellet, plays a key role in the field such as steel production, in the production and processing flow of iron concentrate powder, breaking, grinding, beneficiation etc. Link is indispensable, and each step has important influence on final product quality, the slight fluctuation of iron content in iron concentrate powder, all will be directly transmitted to the quality of finished pellet, in order to obtain high-purity iron concentrate powder, ball mill crushing is a very critical step, usually, ball mill crusher becomes important equipment to achieve this goal by its efficient crushing and grinding capacity, guarantees the quality of iron concentrate powder and the smooth progress of subsequent production.
[0003] The existing iron concentrate powder multistage ball mill crusher, in iron concentrate powder input link, due to lack of effective control mechanism, cannot accurately control feeding speed and flow, a large amount of iron concentrate powder often rapidly flows into mill crusher in short time, which not only easily causes the blockage of key parts such as feeding port and crushing cavity, hinders normal operation of equipment, but also makes subsequent grinding and crushing process unable to proceed evenly and efficiently, finally leads to uneven particle size and off-specification purity of output iron concentrate powder, seriously reduces overall quality and production efficiency of product, so it needs to be improved and optimized. UTILITY MODEL CONTENT
[0004] In order to overcome the deficiencies of prior art, the utility model provides a kind of iron concentrate powder multistage ball mill crusher, with the advantages of uniform dispersion iron concentrate powder.
[0005] To achieve the above object, the utility model provides following technical scheme: a kind of iron concentrate powder multistage ball mill, including bearing plate, the upper of the bearing plate is fixedly installed with first fixed support, the upper of the first fixed support is fixedly installed with discharge chute, the side of the discharge chute is fixed with fixed plate, the upper of the fixed plate is fixedly installed with first motor support, the inside of the first motor support is fixedly installed with first motor, the upper of the fixed plate is fixedly installed with second fixed support, the top of the second fixed support is fixedly installed with first C-shaped support and the output shaft of first motor extends to the inside of first C-shaped support, the output shaft end of first motor is fixedly installed with disc, the upper side of disc is fixedly installed with lug, the inside of lug inside the both sides of first C-shaped support extension is slidably installed with slide bar, and slide bar is all through and the inside of lug inside the both sides of first C-shaped support extension, the inside of the end of the slide bar is fixedly installed with hollow block, the inside of two hollow blocks is fixedly installed with annular sleeve block, and annular sleeve block movably sleeved in the outer surface of lug, the outside end of slide bar is all fixedly connected with second C-shaped support, the side of second C-shaped support is fixedly installed with dispersing rod, and dispersing rod is above discharge chute, the bottom side of discharge chute is fixedly connected with communicating pipe and is interconnected, the upper of the bearing plate is fixedly installed with transport mechanism.
[0006] As a preferred technical scheme of the utility model, the upper of the bearing plate is fixedly installed with collection box, the top of the collection box is fixedly installed with transfer box, and is interconnected, the side of the transfer box is rotatably installed with mill crushing jar, and the left end of the communicating pipe end and the left end of the mill crushing jar are rotatably connected and are interconnected, the outer surface of the mill crushing jar is fixedly sleeved with annular rack, the upper of the bearing plate is fixedly installed with second motor support, the outer surface of the second motor support is fixedly installed with second motor, the end of the output shaft of the second motor is fixedly installed with from gear and from gear and annular rack are intermeshed, the inside of the mill crushing jar is fixedly installed with first screen, coarse ball is placed on the left side of the first screen in the inside of the mill crushing jar, the right end of the mill crushing jar is fixedly installed with second screen, fine ball is placed in the inside of the mill crushing jar and is between second screen and first screen, the inside of the transfer box is fixedly installed with inclined block on both sides.
[0007] As a preferred technical scheme of the utility model, the transport mechanism includes that third motor support is fixedly installed on the upper of bearing plate, the outer surface of the third motor support is fixedly installed with third motor, the upper of the bearing plate is fixedly installed with third fixed support on both sides, the upper of the discharge chute is fixedly installed with fourth fixed support on both sides, two fourth fixed supports and third fixed supports are rotatably installed with transmission shaft between them, the outer surface of transmission shaft and the end of the output shaft of third motor are fixedly installed with belt pulley, two belt pulleys are drivenly connected through belt, two transmission shafts are drivenly connected through transmission belt.
[0008] As a preferred technical scheme of the utility model, the baffle is fixedly installed on both sides of the discharging groove and has an arc shape.
[0009] As a preferred technical scheme of the utility model, the convex strip is fixedly installed on the outer surface of the conveying belt and has a linear array shape.
[0010] As a preferred technical scheme of the utility model, the convex block has a T shape, and the maximum width of the annular sleeve block is smaller than the maximum width of the convex block.
[0011] As a preferred technical scheme of the utility model, the base is fixedly installed on the bottom of the bearing plate and around the bottom of the bearing plate.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] 1、the utility model discloses a left and right sliding of the slide rod on both sides will drive the second C-shaped support left and right movement, when the second C-shaped support left and right movement will drive a plurality of dispersion rods left and right movement, the iron concentrate powder transported by the conveying mechanism is uniformly dispersed and enters the communicating pipe through the discharging groove, compared with the traditional device, it can uniformly disperse the iron concentrate powder raw ore transported, make it orderly enter the communicating pipe through the discharging groove, effectively prevent the iron concentrate powder from gathering and rushing in a large amount, avoid the communicating pipe from being blocked, ensure that the subsequent grinding and crushing process is uniform and efficient, improve the overall quality of the product.
[0014] 2、the utility model discloses a grinding and crushing tank rotation drives the coarse ball rotation first to the iron concentrate powder grinding and crushing, because the inside of the grinding and crushing tank is inclined to the transfer box, so that the iron concentrate powder meeting the requirements is passed through the first screen mesh along with the rotation of the grinding and crushing tank, then the fine ball rotates again and the iron concentrate powder is ground and crushed, then the iron concentrate powder with higher purity is passed through the second screen mesh into the transfer box, and then along with the inclination of the inclined block, the iron concentrate powder flows into the collecting box along the communicating groove, compared with the traditional device, the device can drive the coarse ball to grind and crush first by the rotation of the grinding and crushing tank, the inside is ingeniously designed to be inclined, so that the iron concentrate powder meeting the requirements passes through the first screen mesh, then the fine ball is ground and purified again, the high-purity finished product flows into the collecting box through the second screen mesh and the inclined block, in this way, not only the production efficiency is improved, but also the iron concentrate powder is finely ground and has very high purity, and the product quality and economic benefit are greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the front perspective appearance structure schematic diagram of the utility model;
[0016] Figure 2 It is the dispersion rod structure schematic diagram of the utility model;
[0017] Figure 3 It is the first C-shaped support structure schematic diagram of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the grinding and crushing tank of this utility model;
[0019] Figure 5 This is a cross-sectional structural diagram of the present invention.
[0020] In the diagram: 1. Bearing plate; 2. First fixed bracket; 3. Feed chute; 4. Fixed plate; 5. First motor bracket; 6. First motor; 7. First C-shaped bracket; 8. Second fixed bracket; 9. Slide rod; 10. Hollow block; 11. Annular sleeve block; 12. Disc; 13. Protrusion; 14. Second C-shaped bracket; 15. Dispersing rod; 16. Connecting pipe; 17. Second motor bracket; 18. Second motor; 19. Follower gear; 20. Annular rack; 21. Collection box; 22. Transfer box; 23. Grinding and crushing tank; 24. First screen; 25. Coarse ball; 26. Fine ball; 27. Second screen; 28. Inclined block; 29. Third motor bracket; 30. Third motor; 31. Third fixed bracket; 32. Pulley; 33. Belt; 34. Fourth fixed bracket; 35. Drive shaft; 36. Conveyor belt; 37. Protrusion; 38. Baffle; 39. Base. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figures 1 to 5As shown, this utility model provides a multi-stage ball mill crusher for iron concentrate, including a bearing plate 1, a first fixed bracket 2 fixedly installed on the top of the bearing plate 1, a feeding chute 3 fixedly installed on the top of the first fixed bracket 2, a fixed plate 4 fixedly installed on the side of the feeding chute 3, a first motor bracket 5 fixedly installed on the top of the fixed plate 4, a first motor 6 fixedly installed on the inner side of the first motor bracket 5, a second fixed bracket 8 fixedly installed on the top of the fixed plate 4, a first C-shaped bracket 7 fixedly installed on the top of the second fixed bracket 8, and the output shaft of the first motor 6 extending to the inner side of the first C-shaped bracket 7. A disc 12 is fixedly installed at the end of the output shaft of the first motor 6, and a disc 12 is fixedly installed on the upper side of the disc 12. A protrusion 13 is fixedly installed on the surface. A slide rod 9 is slidably installed inside the protrusions on both sides of the first C-shaped bracket 7, and the slide rod 9 passes through the inside of the protrusions on both sides of the first C-shaped bracket 7. A hollow block 10 is fixedly installed on the inner end of the slide rod 9. An annular sleeve block 11 is fixedly installed on the inner side of the two hollow blocks 10, and the annular sleeve block 11 is movably sleeved on the outer surface of the protrusion 13. A second C-shaped bracket 14 is fixedly connected to the outer end of the slide rod 9. A dispersing rod 15 is fixedly installed on the side of the second C-shaped bracket 14, and the dispersing rod 15 is located above the feeding trough 3. A connecting pipe 16 is fixedly connected to the bottom side of the feeding trough 3 and they are interconnected. A transport mechanism is fixedly installed on the top of the bearing plate 1.
[0023] When the operator starts the first motor 6 via the controller, the output shaft of the first motor 6 will drive the disc 12 to rotate. When the disc 12 starts to rotate, it will drive the protrusion 13 to make a circular motion. When the protrusion 13 starts to make a circular motion, it will drive the annular sleeve block 11 to make a circular motion. When the annular sleeve block 11 makes a circular motion, it will cause the hollow block 10 to move left and right. When the hollow block 10 moves left and right, it will drive the sliding rods 9 on both sides to slide left and right inside the protrusions on both sides of the first C-shaped bracket 7. When the sliding rods 9 on both sides slide left and right, it will drive the second C-shaped bracket 14 to move left and right. When the second C-shaped bracket 14 moves left and right, it will drive multiple dispersing rods 15 to move left and right, so that the iron concentrate transported by the transport mechanism is evenly dispersed and enters the connecting pipe 16 through the feeding chute 3.
[0024] When the sliding rods 9 on both sides slide left and right, they will drive the second C-shaped support 14 to move left and right. When the second C-shaped support 14 moves left and right, it will drive multiple dispersing rods 15 to move left and right, so that the iron concentrate transported by the transport mechanism is evenly dispersed and enters the connecting pipe 16 through the feeding chute 3. Compared with the traditional device, this device can evenly disperse the transported iron concentrate raw ore, so that it enters the connecting pipe 16 in an orderly manner through the feeding chute 3, effectively preventing the iron concentrate from accumulating and flooding in, avoiding blockage of the connecting pipe 16, ensuring that the subsequent grinding and crushing process is uniform and efficient, and improving the overall quality of the product.
[0025] A collection box 21 is fixedly installed above the bearing plate 1, and a transfer box 22 is fixedly installed on the top of the collection box 21, and they are connected to each other. A grinding and crushing tank 23 is rotatably installed on the side of the transfer box 22, and the end of the connecting pipe 16 is rotatably connected to the left end of the grinding and crushing tank 23 and they are connected to each other. A ring rack 20 is fixedly sleeved on the outer surface of the grinding and crushing tank 23. A second motor bracket 17 is fixedly installed above the bearing plate 1, and a second motor 18 is fixedly installed on the outer surface of the second motor bracket 17. A driven gear 19 is fixedly installed at the end of the output shaft of the second motor 18 and the driven gear 19 meshes with the ring rack 20. A first screen 24 is fixedly installed inside the grinding and crushing tank 23. A coarse ball 25 is placed inside the grinding and crushing tank 23 on the left side of the first screen 24. A second screen 27 is fixedly installed on the right end of the grinding and crushing tank 23. A fine ball 26 is placed inside the grinding and crushing tank 23 and is located between the second screen 27 and the first screen 24. Inclined blocks 28 are fixedly installed on both sides of the inner side of the transfer box 22.
[0026] When the second motor 18 is started by the controller, the output shaft of the second motor 18 will drive the gear 19 to rotate. When the gear 19 rotates, it will drive the ring rack 20 to rotate. When the ring rack 20 rotates, it will drive the grinding and crushing tank 23 to rotate. At the same time, iron concentrate is evenly conveyed into the grinding and crushing tank 23 through the connecting pipe 16. Then, the rotation of the grinding and crushing tank 23 drives the coarse ball 25 to rotate first to grind and crush the iron concentrate. Since the inside of the grinding and crushing tank 23 is inclined towards the transfer box 22, the iron concentrate that meets the requirements passes through the first screen 24 as the grinding and crushing tank 23 rotates. Then, the fine ball 26 rotates and grinds the iron concentrate again. Then, the iron concentrate with higher purity passes through the second screen 27 into the transfer box 22, and then flows into the collection box 21 along the connecting groove as the inclined block 28 tilts.
[0027] The iron concentrate is first ground by rotating the grinding tank 23, which drives the coarse balls 25 to rotate. Since the inside of the grinding tank 23 is inclined towards the transfer box 22, the iron concentrate that meets the requirements passes through the first screen 24 as the grinding tank 23 rotates. Then, the fine balls 26 rotate and grind the iron concentrate again. The iron concentrate with higher purity then passes through the second screen 27 into the transfer box 22, and then flows into the collection box 21 along the connecting groove as the inclined block 28 tilts. Compared with the traditional device, this device can drive the coarse balls 25 to grind first by rotating the grinding tank 23. Its ingenious internal inclined design allows the qualified iron concentrate to pass through the first screen 24. Then, the fine balls 26 grind it a second time to improve its purity. The high-purity finished product flows into the collection box 21 through the second screen 27 and the inclined block 28. In this way, not only is the production efficiency improved, but the iron concentrate is also ground finely and has extremely high purity, which greatly improves the product quality and economic benefits.
[0028] The transport mechanism includes a third motor bracket 29 fixedly installed above the bearing plate 1, a third motor 30 fixedly installed on the outer surface of the third motor bracket 29, third fixed brackets 31 fixedly installed on both sides above the bearing plate 1, fourth fixed brackets 34 fixedly installed on both sides above the discharge chute 3, a drive shaft 35 rotatably installed between the two fourth fixed brackets 34 and the third fixed brackets 31, a pulley 32 fixedly installed on the outer surface of the drive shaft 35 and the end of the output shaft of the third motor 30, the two pulleys 32 are connected by a belt 33, and the two drive shafts 35 are connected by a transmission belt 36.
[0029] The controller starts the third motor 30. When the third motor 30 starts, the output shaft will drive the pulley 32 to start rotating. When the pulley 32 rotates, it will drive the pulleys 32 on both sides to rotate through the belt 33. When the pulley 32 rotates, it will drive the drive shaft 35 to rotate. Then, it will drive the drive shafts 35 on both sides to rotate through the conveyor belt 36, thereby improving transportation efficiency and reducing labor.
[0030] Among them, baffles 38 are fixedly installed on both sides of the feeding trough 3, and the baffles 38 are arc-shaped.
[0031] Baffles 38 are fixedly installed on both sides of the feeding chute 3, and the baffles 38 are arc-shaped, which can effectively prevent the iron concentrate from being knocked out of the outside by the dispersing rod 15 when the dispersing rod 15 is evenly dispersed.
[0032] The outer surface of the conveyor belt 36 is fixedly equipped with protrusions 37, and the protrusions 37 are arranged in a linear array.
[0033] The linear array of protrusions 37 effectively limits the iron concentrate when the conveyor belt 36 is transporting it, preventing the iron concentrate from falling back due to the slope.
[0034] The protrusion 13 is T-shaped, and the maximum width of the annular sleeve 11 is less than the maximum width of the protrusion 13.
[0035] By making the maximum width of the annular sleeve 11 smaller than the maximum width of the protrusion 13, the annular sleeve 11 can be prevented from derailing when it makes circular motion.
[0036] The support plate 1 has a base 39 fixedly installed at its bottom, and the base 39 is fixedly installed around the bottom of the support plate 1.
[0037] The device is fixedly mounted on the bottom perimeter of the support plate 1 by the base 39, which can keep the entire device stable and prevent it from being easily affected by external physical influences.
[0038] Working principle and usage process of this utility model:
[0039] When the operator starts the first motor 6 via the controller, the output shaft of the first motor 6 will drive the disc 12 to rotate. When the disc 12 starts to rotate, it will drive the protrusion 13 to make a circular motion. When the protrusion 13 starts to make a circular motion, it will drive the annular sleeve block 11 to make a circular motion. When the annular sleeve block 11 makes a circular motion, it will cause the hollow block 10 to move left and right. When the hollow block 10 moves left and right, it will drive the sliding rods 9 on both sides to slide left and right inside the protrusions on both sides of the first C-shaped bracket 7. When the sliding rods 9 on both sides slide left and right, it will drive the second C-shaped bracket 14 to move left and right. When the second C-shaped bracket 14 moves left and right, it will drive multiple dispersing rods 15 to move left and right, so that the iron concentrate transported by the transport mechanism is evenly dispersed and enters the connecting pipe 16 through the feeding chute 3.
[0040] When the second motor 18 is started by the controller, the output shaft of the second motor 18 will drive the gear 19 to rotate. When the gear 19 rotates, it will drive the ring rack 20 to rotate. When the ring rack 20 rotates, it will drive the grinding and crushing tank 23 to rotate. At the same time, iron concentrate is evenly conveyed into the grinding and crushing tank 23 through the connecting pipe 16. Then, the rotation of the grinding and crushing tank 23 drives the coarse ball 25 to rotate first to grind and crush the iron concentrate. Since the inside of the grinding and crushing tank 23 is inclined towards the transfer box 22, the iron concentrate that meets the requirements passes through the first screen 24 as the grinding and crushing tank 23 rotates. Then, the fine ball 26 rotates and grinds the iron concentrate again. Then, the iron concentrate with higher purity passes through the second screen 27 into the transfer box 22, and then flows into the collection box 21 along the connecting groove as the inclined block 28 tilts.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-stage ball mill crusher of iron ore fines comprising a carrier plate (1) characterised in that: The upper side of the bearing plate (1) is fixedly installed with a first fixed support (2), the upper side of the first fixed support (2) is fixedly installed with a discharging chute (3), the side of the discharging chute (3) is fixedly installed with a fixed plate (4), the upper side of the fixed plate (4) is fixedly installed with a first motor support (5), the inner side of the first motor support (5) is fixedly installed with a first motor (6), the upper side of the fixed plate (4) is fixedly installed with a second fixed support (8), the top of the second fixed support (8) is fixedly installed with a first C-shaped support (7), and the output shaft of the first motor (6) extends to the inner side of the first C-shaped support (7), the output shaft end of the first motor (6) is fixedly installed with a disc (12), the upper side of the disc (12) is fixedly installed with a protruding block (13), the both sides of the first C-shaped support (7) extend the protruding block inside and are slidably installed with a sliding rod (9), and the sliding rod (9) penetrates the protruding block inside, the inner side end of the sliding rod (9) is fixedly installed with a hollow block (10), the inner side of the two hollow blocks (10) is fixedly installed with an annular sleeve block (11), the annular sleeve block (11) movably sleeves the outer surface of the protruding block (13), the outer side end of the sliding rod (9) is fixedly connected with a second C-shaped support (14), the side of the second C-shaped support (14) is fixedly installed with a dispersing rod (15), and the dispersing rod (15) is located above the discharging chute (3), the bottom side of the discharging chute (3) is fixedly connected with a communication pipe (16) and communicates with each other, and the upper side of the bearing plate (1) is fixedly installed with a conveying mechanism.
2. A multi-stage ball mill crusher for iron ore fines as claimed in claim 1 wherein: The upper side of the bearing plate (1) is fixedly installed with a collecting box (21), the top of the collecting box (21) is fixedly installed with a transfer box (22) and communicates with each other, the side of the transfer box (22) is rotatably installed with a grinding and crushing tank (23), the end of the communication pipe (16) is rotatably connected with the left end of the grinding and crushing tank (23) and communicates with each other, the outer surface of the grinding and crushing tank (23) is fixedly sleeved with an annular rack (20), the upper side of the bearing plate (1) is fixedly installed with a second motor support (17), the outer surface of the second motor support (17) is fixedly installed with a second motor (18), the output shaft end of the second motor (18) is fixedly installed with a pinion (19), and the pinion (19) is meshed with the annular rack (20), the inner side of the grinding and crushing tank (23) is fixedly installed with a first screen (24), the inner side of the grinding and crushing tank (23) is placed with a coarse ball (25) on the left side of the first screen (24), the right end of the grinding and crushing tank (23) is fixedly installed with a second screen (27), the inner side of the grinding and crushing tank (23) is placed with a fine ball (26) and is located between the second screen (27) and the first screen (24), and the inner side of the transfer box (22) is fixedly installed with an inclined block (28) on both sides.
3. A multi-stage ball mill crusher for iron ore fines as claimed in claim 1 wherein: The conveying mechanism comprises a third motor support (29) fixedly installed above the bearing plate (1), an outer surface of the third motor support (29) is fixedly installed with a third motor (30), both sides of the upper portion of the bearing plate (1) are fixedly installed with third fixed supports (31), both sides of the upper portion of the blanking groove (3) are fixedly installed with fourth fixed supports (34), transmission shafts (35) are rotatably installed between the fourth fixed supports (34) and the third fixed supports (31), belt pulleys (32) are fixedly installed on the outer surface of the transmission shafts (35) and the output shaft end of the third motor (30), the two belt pulleys (32) are drivingly connected through a belt (33), and the two transmission shafts (35) are drivingly connected through a transmission belt (36).
4. A multi-stage ball mill crusher for iron ore fines as claimed in claim 1 wherein: Both sides of the blanking groove (3) are fixedly installed with baffles (38), and the baffles (38) are in arc shapes.
5. A multi-stage ball mill crusher for iron ore fines as claimed in claim 3 wherein: The outer surface of the transmission belt (36) is fixedly installed with convex strips (37), and the convex strips (37) are in linear array shapes.
6. A multi-stage ball mill crusher for iron ore fines as claimed in claim 1 wherein: The convex block (13) is in a T shape, and the maximum width of the annular sleeve block (11) is smaller than the maximum width of the convex block (13).
7. A multi-stage ball mill crusher for iron ore fines as claimed in claim 1 wherein: The bottom of the bearing plate (1) is fixedly installed with a base (39), and the base (39) is fixedly installed around the bottom of the bearing plate (1).