Ball mill bin material separator

Abstract

The utility model provides a kind of ball mill bin material separating device, the barrel of ball mill is provided with material separating device, the cross direction of material separating device and barrel is fixedly arranged, material separating device is fixedly installed with the inner wall of barrel, and the internal space of barrel is separated, one side of material separating device is coarse material bin, and the other side is set to fine material bin, material separating device is provided with through hole, the aperture of through hole is less than the particle size of coarse material and greater than the particle size of fine material, fine material enters knife fine material bin after passing through through hole, coarse material bin is set near the feed end of barrel, and fine material bin is set near the discharge end of barrel. In the barrel of ball mill, set material separating device, material separating device can set the aperture required, coarse material with large particle cannot pass through, can continuously carry out ball milling, fine material with small particle can pass through material separating device, and move to outlet direction, effectively improve the consistency of the particle size of discharge after ball milling.

Description

Technical Field

[0001] This utility model relates to an improvement of a device suitable for grinding and processing magnetic materials, specifically a material separation device for a ball mill hopper. Background Technology

[0002] Magnetic materials are hard, magnetic materials formed from magnetic raw materials through processes such as grinding, shaping, and sintering. The raw materials are usually ferromagnetic materials. To improve the structural strength of magnetic materials, materials such as ores need to be crushed and ground. Grinding is usually done using a ball mill. In the conventional production of magnetic materials, the materials are ground in the ball mill for a fixed time. After the time requirement is met, the same batch enters the next processing step at the same time. However, although the grinding process meets the time requirement, the particle size of some materials still does not meet the requirements. Therefore, the production of sintered magnetic materials does not fully meet the requirements, and the production qualification rate is low. Therefore, the structure of the ball mill needs to be improved to meet the processing requirements. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a ball mill hopper material separation device.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: A material separating device is provided inside the ball mill barrel. The material separating device is fixedly arranged in the cross-sectional direction of the barrel and fixedly installed on the inner wall of the barrel, thus dividing the internal space of the barrel. One side of the material separating device is a coarse material compartment, and the opposite side is a fine material compartment. The material separating device is provided with a through hole. The diameter of the through hole is smaller than the particle size of the coarse material but larger than the particle size of the fine material. After passing through the through hole, the fine material enters the fine material compartment. The coarse material compartment is located near the feed end of the barrel, and the fine material compartment is located near the discharge end of the barrel. A material separation device is installed inside the ball mill barrel. The material separation device can be set with the required aperture to separate the environment inside the barrel. Large coarse particles cannot pass through and can continue to be ball-milled, while small fine particles can pass through the material separation device and move towards the outlet. This effectively improves the consistency of particle size of the output material after ball milling and improves product quality. Furthermore, multiple material separation devices can be set along the length of the barrel to form multi-stage separation requirements. The through holes are progressively smaller to achieve better fine processing.

[0005] Furthermore, the material separation device includes sector-shaped partitions and a central partition. Multiple sector-shaped partitions are arranged and assembled to form a disc structure with a central opening. The outer edges of the sector-shaped partitions contact and are fixedly installed against the inner wall of the material cylinder. The central partition is fixedly installed at the central opening of the disc structure. Both the sector-shaped partitions and the central partition have through holes. The sector-shaped partitions can be assembled into an annular disc structure and installed and fixed according to the internal environment of the material cylinder, adapting to the long-term rotational operation requirements of the ball mill. The central partition is located in the middle of all the sector-shaped partitions, which compensates for the weakness of the central structure of the sector-shaped partitions and meets the installation requirements of the central through holes.

[0006] Furthermore, the fan-shaped partition includes a fixed edge and a perforated plate. The perforated plate is formed into a fan-shaped structure with through holes on its surface. The edges of the perforated plate are straight, and the edges of the perforated plates of adjacent fan-shaped partitions are aligned. The large arc-shaped edge of the perforated plate is thickened to form the fixed edge, the outer circle of which is an arc surface corresponding to the inner wall of the barrel. The fixed edge is fixedly installed to the outer wall of the barrel by a fastener. The fixed edge contacts the inner surface of the barrel and provides structural fixation, ensuring reliable installation and a stable center of gravity during rotation. The perforated plate is used to form the through holes, resulting in a stable and reliable structure.

[0007] Furthermore, the sector-shaped partitions are fixedly connected by locking fasteners. Each locking fastener has a wedge-shaped component, and an embedding groove corresponding to the shape of the wedge is formed on the edge of each sector-shaped partition. The embedding groove is divided into two parts, each formed on the edge of an adjacent sector-shaped partition. The wedge is embedded and fixed in the embedding groove and simultaneously connected to both sector-shaped partitions. The sector-shaped partitions are fixed together by locking fasteners, the main body of which is a wedge. The fixed wedge is radially immovable, which limits the slippage of the sector-shaped partitions due to centrifugal force after rotation, thus forming a unified structure and reducing wear and noise.

[0008] Furthermore, the central partition is formed into a disc structure, with its edges clamped and fixed by fan-shaped partitions. Clamping grooves are formed on the small arc edges of all the fan-shaped partitions, clamping and fixing the central partition within these grooves. The central partition has through holes with the same diameter as those on the fan-shaped partitions. The central partition is surrounded and fixed, and the fixing structure of the central partition is stable. The connection between the central partition and the fan-shaped partitions can be achieved by inserting fixing screws.

[0009] Compared with the prior art, this utility model has the following advantages and effects: This design is an improvement of the processing device of a ball mill for processing magnetic materials. It adopts a material separation device with a through hole to screen the material during the ball milling process, leaving the coarse material in the ball mill for continuous processing. The material separation device is a combined structure, which is convenient for installation and maintenance. When wear occurs, it can be replaced for maintenance. The structure is stable and reliable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the material separation device on a ball mill.

[0011] Figure 2 This is a schematic diagram of the material separation device in another direction on the ball mill.

[0012] Figure 3 This is a schematic diagram of the structure combining the fan-shaped partition and the central partition.

[0013] Figure 4 This is a schematic diagram of the structure combining the fan-shaped partition and the central partition.

[0014] In the diagram: 1. Material cylinder, 2. Material separating device, 3. Through hole, 4. Fan-shaped partition, 5. Central partition, 6. Fixed edge, 7. Perforated plate, 8. Locking fastener, 9. Embedded groove, 10. Clamping groove, 11. Fixing component. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0016] A material separation device for a ball mill hopper is provided. A material separation device 2 is provided inside the ball mill cylinder 1. The material separation device 2 is fixedly arranged in the cross-sectional direction of the cylinder 1 and fixedly installed on the inner wall of the cylinder 1, thus dividing the internal space of the cylinder 1. One side of the material separation device 2 is a coarse material hopper, and the opposite side is a fine material hopper. The material separation device 2 is provided with a through hole 3. The diameter of the through hole 3 is smaller than the particle size of the coarse material but larger than the particle size of the fine material. The fine material enters the fine material hopper after passing through the through hole 3. The coarse material hopper is located near the feed end of the cylinder 1, and the fine material hopper is located near the discharge end of the cylinder 1.

[0017] The material separating device 2 includes a fan-shaped partition 4 and a central partition 5. The fan-shaped partition 4 is provided with multiple pieces and is assembled around each other to form a disc structure with a central opening. The outer side of the fan-shaped partition 4 contacts and is fixedly installed with the inner wall of the material cylinder 1. The central partition 5 is fixedly installed at the central opening of the disc structure. Both the fan-shaped partition 4 and the central partition 5 are provided with through holes 3.

[0018] The fan-shaped partition 4 includes a fixed edge 6 and a perforated plate portion 7. The perforated plate portion 7 is formed into a fan-shaped structure, and a through hole 3 is provided on its surface. The edge of the perforated plate portion 7 is a straight edge. The edges of the perforated plate portions 7 between adjacent fan-shaped partitions 4 are aligned. The large arc edge of the perforated plate portion 7 is thickened to form the fixed edge 6. The outer circle of the fixed edge 6 is an arc surface corresponding to the inner wall of the material cylinder 1. The fixed edge 6 is fixedly installed to the outer wall of the material cylinder 1 by a fastener 11.

[0019] The fan-shaped partitions 4 are fixedly connected by locking fasteners 8. The locking fasteners 8 are formed with wedges. An embedding groove 9 corresponding to the shape of the wedge is formed on the edge of the fan-shaped partition 4. The embedding groove 9 is divided into two parts and is formed on the edge of the adjacent fan-shaped partitions 4 respectively. The wedge is embedded and fixed in the embedding groove 9 and is connected to the two fan-shaped partitions 4 at the same time.

[0020] The central partition 5 is formed into a disc structure, and its edge is clamped and fixed by the fan-shaped partition 4. Clamping grooves 10 are formed on the small arc edges of all the fan-shaped partitions 4. The central partition 5 is clamped and fixed in the clamping grooves 10. The central partition 5 is formed with through holes 3, and the diameter of the through holes 3 is the same as that of the through holes 3 on the fan-shaped partitions 4.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary rather than restrictive in all respects. The scope of this invention is defined by the claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This description method is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A material separation device for a ball mill hopper, characterized in that: A material separating device (2) is provided inside the ball mill cylinder (1). The material separating device (2) is fixedly arranged in the cross-sectional direction of the cylinder (1). The material separating device (2) is fixedly installed on the inner wall of the cylinder (1) and divides the internal space of the cylinder (1). One side of the material separating device (2) is a coarse material compartment, and the other side is a fine material compartment. A through hole (3) is provided on the material separating device (2). The diameter of the through hole (3) is smaller than the particle size of the coarse material but larger than the particle size of the fine material. After passing through the through hole (3), the fine material enters the fine material compartment. The coarse material compartment is located near the feed end of the cylinder (1), and the fine material compartment is located near the discharge end of the cylinder (1).

2. The ball mill hopper material separation device according to claim 1, characterized in that: The material separation device (2) includes a fan-shaped partition (4) and a central partition (5). The fan-shaped partition (4) is provided with multiple pieces and is assembled around to form a disc structure with a central opening. The outer side of the fan-shaped partition (4) contacts and is fixedly installed on the inner wall of the material cylinder (1). The central partition (5) is fixedly installed at the central opening of the disc structure. Both the fan-shaped partition (4) and the central partition (5) are provided with through holes (3).

3. The ball mill hopper material separation device according to claim 2, characterized in that: The fan-shaped partition (4) includes a fixed edge (6) and a perforated plate (7). The perforated plate (7) is formed into a fan-shaped structure, and a through hole (3) is provided on its surface. The edge of the perforated plate (7) is a straight edge. The edges of the perforated plate (7) between adjacent fan-shaped partitions (4) are aligned. The large arc edge of the perforated plate (7) is thickened to form a fixed edge (6). The outer circle of the fixed edge (6) is an arc surface corresponding to the inner wall of the material cylinder (1). The fixed edge (6) is fixedly installed to the outer wall of the material cylinder (1) by a fastener (11).

4. The ball mill hopper material separation device according to claim 3, characterized in that: The fan-shaped partitions (4) are fixedly connected by a locking member (8). The locking member (8) is formed with a wedge. An embedding groove (9) corresponding to the shape of the wedge is formed on the edge of the fan-shaped partition (4). The embedding groove (9) is divided into two parts and is formed on the edge of the adjacent fan-shaped partitions (4). The wedge is embedded and fixed in the embedding groove (9) and is connected to the two fan-shaped partitions (4) at the same time.

5. The ball mill hopper material separation device according to claim 2, characterized in that: The central partition (5) is formed into a disc structure, and its edge is clamped and fixed by the fan-shaped partition (4). Clamping grooves (10) are formed on the small arc edges of all the fan-shaped partitions (4). The central partition (5) is clamped and fixed in the clamping grooves (10). The central partition (5) has through holes (3), and the diameter of the through holes (3) is the same as that of the through holes (3) on the fan-shaped partitions (4).

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