Rare earth ore grinding device

Abstract

The utility model discloses a rare earth ore grinding device which comprises a feeding port and a crushing bin fixedly installed at the lower end of the feeding port, a screening bin is fixedly installed at the lower end of the crushing bin, a conveying motor is fixedly installed on one side of the screening bin, a conveying belt is arranged in the screening bin, and conveying shafts are arranged at the two opposite ends in the conveying belt. The conveying shafts are used for rotation of the conveying belt, leaking holes are formed in the conveying belt in a penetrating mode, at least two fixing shafts are fixedly installed on the two opposite sides of the inner wall of the screening bin and located on the inner side and the outer side of the conveying belt correspondingly, supporting rods are rotationally connected to the outer sides of the fixing shafts, and auxiliary hooks are fixedly installed at the lower ends of the supporting rods; according to the rare earth ore grinding device, the leakage holes are formed in the conveying belt, rare earth ore with different sizes is screened, rare earth ore with substandard specifications is subjected to secondary grinding, excessive abrasion of large rare earth ore to the grinding device is reduced, and the service life of the grinding device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to a rare earth ore grinding device. Background Technology

[0002] A grinding device is a mechanical device used to reduce the particle size of materials.

[0003] Grinding is a physical method to crush larger solid particles into smaller ones. However, existing grinding devices generally only have single-layer grinding capabilities and cannot reprocess substandard particles. Devices capable of multiple grinding processes can only reprocess the ground particles uniformly and cannot isolate them before grinding. This results in particles that meet the specifications being ground repeatedly, leading to substandard grinding and repeated grinding processes, which affects the accuracy and adequacy of the grinding process.

[0004] Therefore, we provide a rare earth ore grinding device. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a rare earth ore grinding device that improves the grinding fineness.

[0006] In view of this, the present invention provides a rare earth ore grinding device, including a feed inlet and a crushing chamber fixedly installed at the lower end of the feed inlet. A screening chamber is fixedly installed at the lower end of the crushing chamber. A conveyor motor is fixedly installed on one side of the screening chamber. A slide rail is fixedly connected to the side of the screening chamber adjacent to the conveyor motor. A spiral chamber is fixedly connected to the slide rail. The upper end of the spiral chamber is located obliquely above the feed inlet. A conveyor belt is provided inside the screening chamber. Conveyor shafts are provided at opposite ends inside the conveyor belt. The conveyor shafts are used for the rotation of the conveyor belt. A perforation is provided through the conveyor belt. Fixed shafts are fixedly installed on opposite sides of the inner wall of the screening chamber. There are at least two fixed shafts, and the two fixed shafts are respectively located on the inner and outer sides of the conveyor belt. A support rod is rotatably connected to the outer side of the fixed shaft. An auxiliary hook is fixedly installed at the lower end of the support rod.

[0007] Preferably, a spiral shaft is rotatably mounted inside the spiral chamber, and spiral blades are fixedly connected to the outside of the spiral shaft.

[0008] Preferably, a spiral motor is provided at the lower end of the spiral chamber, the spiral shaft is installed at the output end of the spiral motor, and a return material slide is fixedly connected to the upper half of the outer side of the spiral chamber.

[0009] Preferably, the side of the return chute away from the spiral chamber is fixedly connected to the feed inlet, and the return chute is used for the flow of ore.

[0010] Preferably, a motor is installed on one side of the crushing chamber, and the motor is used for power support of the internal grinding rollers.

[0011] Preferably, a primary grinding chamber is fixedly connected to the lower end of the screening chamber, and the primary grinding chamber is used for primary grinding.

[0012] Preferably, a secondary grinding chamber is fixedly connected to the lower end of the primary grinding chamber, and the secondary grinding chamber is used for fine grinding.

[0013] Preferably, the lower end of the secondary grinding chamber is fixedly connected to a discharge port, which is used for discharging materials.

[0014] Compared with the prior art, this utility model provides a rare earth ore grinding device, which has the following beneficial effects:

[0015] This invention uses a perforated screen to screen rare earth ores of varying sizes, allowing substandard rare earth ores to undergo secondary grinding. This reduces excessive wear on the grinding device caused by large pieces of rare earth ore and improves the service life of the grinding device.

[0016] This invention improves the service life of the conveyor shaft by using an auxiliary hook.

[0017] This invention improves the fineness of grinding by setting up multi-stage grinding chambers.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a rare earth ore grinding device proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the screening structure of a rare earth ore grinding device proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the blocking part of a rare earth ore grinding device proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the spiral chamber of a rare earth ore grinding device proposed in this utility model.

[0023] In the diagram: 1. Feed inlet; 2. Motor; 3. Conveyor shaft; 4. Conveyor belt; 5. Leakage hole; 6. Conveyor motor; 7. Slide rail; 8. Screw motor; 9. Screw chamber; 10. Screw shaft; 11. Screw blade; 12. Return slide rail; 13. Fixed shaft; 14. Rotating shaft; 15. Support rod; 16. Primary grinding chamber; 17. Secondary grinding chamber; 18. Discharge port; 19. Auxiliary hook; 20. Crushing chamber; 21. Screening chamber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1: A rare earth ore grinding device, such as Figures 1-4 As shown, the device includes a feed inlet 1 and a crushing chamber 20 fixedly installed at the lower end of the feed inlet 1. A screening chamber 21 is fixedly installed at the lower end of the crushing chamber 20. A conveyor motor 6 is fixedly installed on one side of the screening chamber 21. A slide rail 7 is fixedly connected to the side of the screening chamber 21 adjacent to the conveyor motor 6. A spiral chamber 9 is fixedly connected to the slide rail 7. The upper end of the spiral chamber 9 is located diagonally above the feed inlet 1. A conveyor belt 4 is installed inside the screening chamber 21. Conveyor shafts 3 are installed at opposite ends inside the conveyor belt 4. The conveyor shafts 3 are used for the rotation of the conveyor belt 4. A perforation hole 5 is provided through the conveyor belt 4. Fixed shafts 13 are fixedly installed on opposite sides of the inner wall of the screening chamber 21. There are at least two fixed shafts 13, and the two fixed shafts 13 are located on the inner and outer sides of the conveyor belt 4, respectively. A support rod 15 is rotatably connected to the outer side of the fixed shaft 13. An auxiliary hook 19 is fixedly installed at the lower end of the support rod 15.

[0027] When the equipment is running, rare earth ore first enters the crushing chamber 20 through the feed inlet 1. Then, the equipment inside the crushing chamber 20 crushes the ore. The crushed rare earth ore enters the screening chamber 21 and simultaneously falls onto the conveyor belt 4. Several perforations 5 on the conveyor belt screen the ore, allowing smaller pieces smaller than the perforations 5 to pass through and enter the next stage of grinding, while larger pieces remain on the conveyor belt 4. This process screens rare earth ores of varying sizes, allowing those that do not meet the size requirements to undergo secondary grinding. This reduces excessive wear on the grinding equipment caused by large pieces of rare earth ore, improving the service life of the grinding equipment. As smaller pieces of rare earth ore fall through the perforations 5, the rotation of the conveyor belt 4 may cause some of these smaller pieces to fall inside. At this time, the inner side of the conveyor belt 4... The auxiliary hook 19, through the rotation of the support rod 15, moves small pieces of rare earth ore, allowing them to pass through the louver 5 into the next stage of grinding. This prevents small pieces of rare earth ore from getting stuck on the conveyor belt 4, causing wear on the conveyor shaft 3, thus improving the service life of the conveyor shaft. At the same time, large pieces of rare earth ore move with the conveyor belt 4. When the large pieces of rare earth ore reach the inlet of the slide 7, several auxiliary hooks 19 set above the conveyor belt 4 pull out the large pieces of rare earth ore stuck in the louver 5, causing them to fall onto the slide 7. This improves the efficiency of the louver 5 and the service life of the conveyor shaft 3. As the large pieces of rare earth ore slide on the slide 7, they fall into the spiral chamber 9. The rotating equipment in the spiral chamber 9 transports the large pieces of ore to the upper side of the feed inlet, causing them to fall into the feed inlet 1, thus undergoing secondary crushing and further improving the fineness of the grinding.

[0028] like Figures 1-4 As shown, a spiral shaft 10 is rotatably mounted inside the spiral chamber 9, and a spiral blade 11 is fixedly connected to the outside of the spiral shaft 10.

[0029] A screw motor 8 is installed at the lower end of the screw chamber 9, and a screw shaft 10 is installed at the output end of the screw motor 8. A return material slide 12 is fixedly connected to the upper part of the outer side of the screw chamber 9.

[0030] The return chute 12 is fixedly connected to the feed inlet 1 on the side away from the spiral chamber 9, and the return chute 12 is used for the flow of ore.

[0031] The spiral motor 8 starts to run, driving the spiral shaft 10 and spiral blades 11 to rotate. At the same time, large pieces of rare earth ore follow the rotation of the spiral blades 11 and move upward, so that the large pieces of rare earth ore are transported to the upper part of the spiral chamber 9 and fall onto the return slide 12. They then enter the feed inlet 1 through the return slide 12, so that the large pieces of rare earth ore automatically enter the feed inlet 1 for secondary grinding, thereby improving the efficiency of secondary grinding.

[0032] like Figures 1-4 As shown, a motor 2 is installed on one side of the crushing chamber 20, and the motor 2 is used for the power support of the internal grinding roller.

[0033] When rare earth ore enters the crushing chamber 20, the motor 2 starts to rotate, and at the same time, the grinding rollers inside the crushing chamber 20 grind and crush the rare earth ore. After the rare earth ore is simply crushed, it is convenient to further grind it, thereby improving the fineness of the grinding.

[0034] like Figures 1-4 As shown, a primary grinding chamber 16 is fixedly connected to the lower end of the screening chamber 21. The primary grinding chamber 16 is used for primary grinding.

[0035] A secondary grinding chamber 17 is fixedly connected to the lower end of the primary grinding chamber 16. The secondary grinding chamber 17 is used for fine grinding.

[0036] The lower end of the secondary grinding chamber 17 is fixedly connected to the discharge port 18, which is used for discharging materials.

[0037] After small pieces of rare earth ore enter the primary grinding chamber 16, they are ground by the grinding equipment inside the primary grinding chamber 16, and then enter the secondary grinding chamber 17 for more detailed grinding, thereby improving the level of fineness.

[0038] Working Principle: When the equipment is running, rare earth ore first enters the crushing chamber through the feed inlet. The motor rotates, and simultaneously, the grinding rollers inside the crushing chamber grind and crush the rare earth ore. After simple crushing, the ore enters the screening chamber and falls onto the conveyor belt. Several perforations on the conveyor belt screen the ore, allowing smaller pieces smaller than the perforations to pass through and enter the next stage of grinding. Larger pieces remain on the conveyor belt. As smaller pieces fall through the perforations, the rotation of the conveyor belt may cause some to fall into the screen. At this point, auxiliary hooks on the inside of the conveyor belt, through the rotation of the support rod, move the smaller pieces through the perforations to enter the next stage of grinding. During grinding, large pieces of rare earth ore move along the conveyor belt. When the large pieces of rare earth ore reach the inlet of the chute, several auxiliary hooks set above the conveyor belt pull out the large pieces of rare earth ore stuck in the holes, causing them to fall onto the chute. As the large pieces of rare earth ore slide on the chute, they fall into the spiral chamber. The spiral motor starts to run, driving the spiral shaft and spiral blades to rotate. At the same time, the large pieces of rare earth ore move upward with the rotation of the spiral blades, so that the large pieces of rare earth ore are transported to the upper part of the spiral chamber and fall onto the return chute, so that they enter the feed inlet through the return chute. After the small pieces of rare earth ore enter the primary grinding chamber, they are ground by the grinding equipment inside the primary grinding chamber. Then they enter the secondary grinding chamber for more fine grinding, and finally they are discharged from the outlet.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rare earth ore grinding device, comprising a feed inlet (1) and a crushing chamber (20) fixedly installed at the lower end of the feed inlet (1), characterized in that, A screening chamber (21) is fixedly installed at the lower end of the crushing chamber (20). A conveyor motor (6) is fixedly installed on one side of the screening chamber (21). A slide rail (7) is fixedly connected to the side of the screening chamber (21) adjacent to the conveyor motor (6). A spiral chamber (9) is fixedly connected to the slide rail (7). The upper end of the spiral chamber (9) is located obliquely above the feed inlet (1). A conveyor belt (4) is provided inside the screening chamber (21). A conveyor shaft (3) is provided at opposite ends inside the conveyor belt (4). The conveyor shaft (3) is used for the rotation of the conveyor belt (4). A perforation hole (5) is provided through the conveyor belt (4). A fixed shaft (13) is fixedly installed on opposite sides of the inner wall of the screening chamber (21). There are at least two fixed shafts (13). The two fixed shafts (13) are located on the inner and outer sides of the conveyor belt (4) respectively. A support rod (15) is rotatably connected to the outer side of the fixed shaft (13). An auxiliary hook (19) is fixedly installed at the lower end of the support rod (15).

2. The rare earth ore grinding device according to claim 1, characterized in that, The spiral chamber (9) is rotatably mounted with a spiral shaft (10), and a spiral blade (11) is fixedly connected to the outside of the spiral shaft (10).

3. The rare earth ore grinding device according to claim 2, characterized in that, The spiral chamber (9) is equipped with a spiral motor (8) at its lower end, and the spiral shaft (10) is installed at the output end of the spiral motor (8). The upper part of the outer side of the spiral chamber (9) is fixedly connected with a return material slide (12).

4. The rare earth ore grinding device according to claim 3, characterized in that, The return chute (12) is fixedly connected to the feed inlet (1) on the side away from the spiral hopper (9), and the return chute (12) is used for the flow of ore.

5. A rare earth ore grinding device according to claim 1, characterized in that, A motor (2) is installed on one side of the crushing chamber (20), and the motor (2) is used for power support of the internal grinding roller.

6. The rare earth ore grinding device according to claim 1, characterized in that, The lower end of the screening chamber (21) is fixedly connected to a primary grinding chamber (16), which is used for primary grinding.

7. A rare earth ore grinding device according to claim 6, characterized in that, The lower end of the primary grinding chamber (16) is fixedly connected to the secondary grinding chamber (17), which is used for fine grinding.

8. A rare earth ore grinding device according to claim 7, characterized in that, The lower end of the secondary grinding chamber (17) is fixedly connected to a discharge port (18), which is used for discharging materials.

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