Grinding device for lepidolite beneficiation

Abstract

The utility model discloses a grinding device for lepidolite beneficiation, which relates to the technical field of grinding and drying and comprises a plugging pipe, a bearing disc is arranged outside the plugging pipe, a grinding roller is arranged outside the plugging pipe, a fan and a heating wire are arranged above the plugging pipe, an air cylinder is arranged above the fan, and the air cylinder is arranged above the heating wire. An air outlet groove is formed in the inner side of the plugging pipe, through cooperation of the plugging pipe, the bearing disc, the grinding roller, the draught fan, the heating wire and the air outlet groove, the plugging pipe can rotate to drive the grinding roller to grind and stir materials located on the bearing disc, meanwhile, during stirring, the draught fan can drive air to enter the plugging pipe, and therefore the materials on the bearing disc can be stirred. And air can be heated into hot air when passing through a heating wire, the hot air can be blown to the materials through an air outlet groove in a plugging pipe, the materials can be fully dried and preliminarily rolled through continuous rotation of the plugging pipe and rolling and stirring of a rolling roller, and the problem that the interiors of the materials cannot be dried through the hot air is solved.

Description

Technical Field

[0001] This utility model relates to the field of grinding and drying technology, specifically a grinding device for lithium mica beneficiation. Background Technology

[0002] In the beneficiation of lepidolite, grinding equipment plays a crucial role in material handling. Its core function is to crush and grind the raw ore using mechanical forces (such as compression, impact, and grinding), enabling the complete liberation of the tightly coexisting lepidolite minerals from gangue minerals such as quartz and feldspar—that is, separating lepidolite crystals from the ore matrix to form individual particles. This is a prerequisite for effective separation in subsequent beneficiation processes (such as flotation and magnetic separation). The grinding equipment also needs to precisely control the particle size distribution of the ore. For example, for flotation processes, the ore needs to be ground to a fineness of -0.074mm, with 60% to 80% of the particles being lepidolite. This ensures that the lepidolite particles can fully contact the flotation reagents (such as collectors and depressants), enhancing the reagent adsorption effect by increasing the mineral's specific surface area, thereby improving the selectivity and efficiency of separation. Simultaneously, the equipment must avoid over-grinding, which would result in excessive fine slime affecting separation accuracy, or under-grinding, which would lead to insufficient liberation and reduced recovery rate. Furthermore, considering the differences in hardness and dispersive characteristics (such as coarse or fine dispersive) of lepidolite ore, grinding equipment (such as ball mills, rod mills, and vertical mills) can be flexibly adapted by adjusting parameters such as rotation speed and grinding media size. For example, coarse-dispersed ore is coarsely ground using a rod mill, while fine-dispersed ore is finely ground to a higher fineness using a ball mill. In summary, grinding equipment significantly improves the separation efficiency and resource utilization of lepidolite by liberating minerals, optimizing particle size, and adapting to processes and ore characteristics. It is a key link connecting crushing and separation in the mineral processing flow, playing a decisive role in reducing tailings metal loss, improving lithium recovery rate, and increasing product purity.

[0003] A search revealed Chinese invention patent CN118988524B, whose technical points are as follows: It includes a machine body, inside which are arranged crushing roller one and crushing roller two. Inside crushing roller one and crushing roller two are respectively arranged shaft one and shaft two. The outer walls of shaft one and shaft two are respectively provided with gear one and gear two, which mesh with each other. Inside the machine body is a carrier plate for supporting lepidolite. A fan is provided at the end of shaft two. The outer wall of the fan is provided with an air pipe one. The end of the air pipe one is provided with an annular body one. The annular body one is hollow inside and contains a heating cylinder. The inner wall of the annular body one has multiple air outlets one. In this device, the lepidolite material above the carrier plate is dried, reducing its surface moisture, decreasing grinding adhesion caused by a damp material surface, and improving material grinding efficiency and quality.

[0004] Although the above-mentioned method can heat and dry the material, the drying efficiency is limited because the hot air can only dry the surface layer of the material and cannot dry the inside of the material, which in turn causes the material to stick together during grinding. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for lithium mica beneficiation to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for lithium mica beneficiation, comprising a sealing pipe, a bearing plate disposed on the outside of the sealing pipe, a rolling roller disposed on the outside of the sealing pipe, a fan and a heating wire disposed above the sealing pipe, a cylinder disposed above the fan, and an air outlet groove opened on the inner side of the sealing pipe.

[0007] Preferably, the outer surface of the sealing tube is in movable contact with the inner side of the bearing plate, a slide rail is fixedly installed on the outer surface of the sealing tube, a slide frame is slidably connected to the outer surface of the slide rail, and the outer surface of the slide frame is rotatably connected to the outer surface of the rolling roller.

[0008] Preferably, the inside of the rolling roller is inlaid with magnets, and the bearing plate is made of iron.

[0009] Preferably, the top of the sealing pipe is provided with an air collecting shell, an isolation plate is fixedly installed on the inner side of the air collecting shell, a ventilation pipe is fixedly installed on the outer surface of the air collecting shell, the heating wire is fixedly installed on the inner side of the ventilation pipe, and the isolation plate is fixedly installed on the outer surface of the ventilation pipe and the outer surface of the fan.

[0010] Preferably, the outer surface of the sealing tube is rotatably connected to the inner wall of the air collecting shell, a gear ring is fixedly installed on the outer surface of the sealing tube inside the air collecting shell, a motor is fixedly installed on the outer surface of the air collecting shell, a transmission rod is fixedly installed at the output end of the motor, the transmission rod passes through the inner side of the air collecting shell, and a drive gear is fixedly installed at the bottom end of the transmission rod, the outer surface of the drive gear and the outer surface of the gear ring mesh with each other.

[0011] Preferably, a load-bearing frame is fixedly installed on the outer surface of the bearing plate, the bottom surface of the load-bearing frame is fixedly installed to the top of the cylinder, and the output end of the cylinder is fixedly installed to the outer surface of the air collecting shell.

[0012] Preferably, a directional rail is fixedly installed on the outer surface of the load-bearing frame, and a directional wheel is installed on the outer surface of the air collecting shell. The outer surface of the directional wheel is slidably connected to the outer surface of the directional rail.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application utilizes the cooperation between the sealing pipe, the bearing plate, the crushing roller, the fan, the heating wire, and the air outlet trough. The rotation of the sealing pipe drives the crushing roller to crush and agitate the material located on the bearing plate. Simultaneously, during the agitation, the fan can drive air into the sealing pipe, and the air can be heated into hot air when passing through the heating wire. The hot air can be blown towards the material through the air outlet trough on the sealing pipe. With the continuous rotation of the sealing pipe and the crushing and agitation of the crushing roller, the material can be fully dried and initially crushed, solving the problem that hot air cannot dry the inside of the material.

[0015] 2. This application utilizes the cooperation between the slide rail, slide frame, crushing roller and bearing plate. When the sealing pipe rotates, it can drive the slide frame through the slide rail, and the crushing roller can roll on the surface of the bearing plate through the slide frame. Furthermore, a limit ring is installed on the slide frame, which can limit the vertical movement of the crushing roller and the slide frame, thereby crushing materials with larger volumes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a grinding device for lithium mica beneficiation according to the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the bearing disk of a grinding device for lithium mica beneficiation according to this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing pipe structure of a grinding device for lithium mica beneficiation according to the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the air collection shell of a grinding device for lithium mica beneficiation according to the present invention;

[0020] Figure 5 This is a schematic diagram of the cylinder transmission structure of a grinding device for lithium mica beneficiation according to the present invention.

[0021] The following are the labels in the diagram: 1. Sealing pipe; 2. Bearing plate; 3. Roller roller; 4. Fan; 5. Heating wire; 6. Cylinder; 7. Air outlet duct; 9. Slide rail; 10. Slide frame; 11. Air collection shell; 12. Isolation plate; 13. Ventilation pipe; 14. Gear ring; 15. Motor; 16. Transmission rod; 17. Drive gear; 18. Support frame; 19. Directional rail; 20. Directional wheel. Detailed Implementation

[0022] 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.

[0023] Example: Figures 1-5 As shown, this utility model provides a technical solution for a grinding device for lithium mica beneficiation, including a sealing pipe 1, a bearing plate 2 on the outside of the sealing pipe 1, a rolling roller 3 on the outside of the sealing pipe 1, a fan 4 and a heating wire 5 on the top of the sealing pipe 1, a cylinder 6 on the top of the fan 4, and an air outlet groove 7 on the inner side of the sealing pipe 1. In use, the rotation of the sealing pipe 1 can drive the rolling roller 3 to crush and agitate the material located on the bearing plate 2. At the same time, during the agitation, the fan 4 can drive air into the sealing pipe 1, and the air can be heated into hot air when passing through the heating wire 5. The hot air can be blown towards the material through the air outlet groove 7 on the sealing pipe 1. With the continuous rotation of the sealing pipe 1 and the crushing and agitation of the rolling roller 3, the material can be fully dried and initially crushed, solving the problem that hot air cannot dry the inside of the material.

[0024] The outer surface of the sealing tube 1 is in movable contact with the inner side of the bearing plate 2. A slide rail 9 is fixedly installed on the outer surface of the sealing tube 1. A slide frame 10 is slidably connected to the outer surface of the slide rail 9. The outer surface of the slide frame 10 is rotatably connected to the outer surface of the crushing roller 3. When the sealing tube 1 rotates, it can drive the slide frame 10 through the slide rail 9, and drive the crushing roller 3 to roll on the surface of the bearing plate 2 through the slide frame 10. A limit ring is installed on the slide frame 10. The limit ring can limit the vertical movement of the crushing roller 3 and the slide frame 10, thereby crushing materials with larger volumes.

[0025] The inside of the rolling roller 3 is inlaid with magnets, and the bearing plate 2 is made of iron. The magnets inside the rolling roller 3 can make the rolling roller 3 adhere to the bearing plate 2, so that the rolling roller 3 can stick tightly to the outer surface of the bearing plate 2.

[0026] The top of the sealing pipe 1 is provided with an air collecting shell 11. An isolation plate 12 is fixedly installed on the inner side of the air collecting shell 11. A ventilation pipe 13 is fixedly installed on the outer surface of the air collecting shell 11. A heating wire 5 is fixedly installed on the inner side of the ventilation pipe 13. The isolation plate 12 is located on the outer surface of the ventilation pipe 13 and is fixedly installed on the outer surface of the fan 4. The fan 4 can draw external air into the air collecting shell 11 and send it into the sealing pipe 1. The air can be heated into hot air by the heating wire 5 in the ventilation pipe 13.

[0027] The outer surface of the sealing tube 1 is rotatably connected to the inner wall of the air collecting shell 11. A gear ring 14 is fixedly installed on the outer surface of the sealing tube 1 inside the air collecting shell 11. A motor 15 is fixedly installed on the outer surface of the air collecting shell 11. A transmission rod 16 is fixedly installed at the output end of the motor 15. The transmission rod 16 passes through the inner side of the air collecting shell 11. A drive gear 17 is fixedly installed at the bottom end of the transmission rod 16. The outer surface of the drive gear 17 meshes with the outer surface of the gear ring 14. The motor 15 can drive the transmission rod 16 to drive the drive wheel, and drive the sealing tube 1 to rotate through the drive wheel and the gear ring 14. At the same time, a bearing is installed on the inner side of the air collecting shell 11. The bearing is sleeved on the outer surface of the transmission rod 16, making the transmission rod 16 more flexible when rotating.

[0028] A load-bearing frame 18 is fixedly installed on the outer surface of the bearing plate 2. The bottom surface of the load-bearing frame 18 is fixedly installed on the top surface of the cylinder 6, and the output end of the cylinder 6 is fixedly installed on the outer surface of the air collecting shell 11. The load-bearing frame 18 can provide load-bearing and support for the cylinder 6. When it is necessary to discharge material, the cylinder 6 drives the air collecting shell 11 and the sealing pipe 1 below, so that the sealing pipe 1 can open the round opening reserved for the sealing pipe 1 on the bearing plate 2, so that the material can be discharged downward.

[0029] A directional rail 19 is fixedly installed on the outer surface of the load-bearing frame 18, and a directional wheel 20 is installed on the outer surface of the air collecting shell 11. The outer surface of the directional wheel 20 is slidably connected to the outer surface of the directional rail 19. When the air collecting shell 11 moves up and down, it can slide up and down on the directional rail 19 through the directional wheel 20. The directional wheel 20 and the directional rail 19 can reduce the reaction force generated by the motor 15 when it is running.

[0030] Before operation, the material can be placed in the bearing plate 2. The motor 15 can drive the sealing tube 1 to rotate. When the sealing tube 1 rotates, it can drive the crushing roller 3 to crush and stir the material on the bearing plate 2. The blower 4 and heating wire 5 can inject hot air into the interior of the sealing tube 1 and blow the hot air into the material. When it is necessary to discharge the material, the cylinder 6 drives the sealing tube 1 upward. At the same time, under the drive of the crushing roller 3, the material can be concentrated and slide down from the center of the bearing plate 2.

[0031] 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 illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A grinding device for lithium mica beneficiation, comprising a sealing pipe (1), characterized in that: The sealing tube (1) is provided with a bearing plate (2) on the outside, and a rolling roller (3) is provided on the outside of the sealing tube (1). A fan (4) and a heating wire (5) are provided above the sealing tube (1). A cylinder (6) is provided above the fan (4). An air outlet groove (7) is provided on the inner side of the sealing tube (1).

2. The grinding device for lithium mica beneficiation according to claim 1, characterized in that: The outer surface of the sealing tube (1) is in active contact with the inner side of the bearing plate (2). A slide rail (9) is fixedly installed on the outer surface of the sealing tube (1). A slide frame (10) is slidably connected to the outer surface of the slide rail (9). The outer surface of the slide frame (10) is rotatably connected to the outer surface of the rolling roller (3).

3. The grinding device for lithium mica beneficiation according to claim 1, characterized in that: The inside of the rolling roller (3) is inlaid with magnets, and the bearing plate (2) is made of iron.

4. A grinding device for lithium mica beneficiation according to claim 1, characterized in that: The top of the sealing pipe (1) is provided with an air collecting shell (11), an isolation plate (12) is fixedly installed on the inner side of the air collecting shell (11), a ventilation pipe (13) is fixedly installed on the outer surface of the air collecting shell (11), the heating wire (5) is fixedly installed on the inner side of the ventilation pipe (13), and the isolation plate (12) is fixedly installed on the outer surface of the ventilation pipe (13) and the outer surface of the fan (4).

5. A grinding device for lithium mica beneficiation according to claim 4, characterized in that: The outer surface of the sealing tube (1) is rotatably connected to the inner wall of the air collecting shell (11). A gear ring (14) is fixedly installed on the outer surface of the sealing tube (1) inside the air collecting shell (11). A motor (15) is fixedly installed on the outer surface of the air collecting shell (11). A transmission rod (16) is fixedly installed at the output end of the motor (15). The transmission rod (16) passes through the inner side of the air collecting shell (11). A drive gear (17) is fixedly installed at the bottom end of the transmission rod (16). The outer surface of the drive gear (17) meshes with the outer surface of the gear ring (14).

6. A grinding device for lithium mica beneficiation according to claim 4, characterized in that: The outer surface of the bearing plate (2) is fixedly installed with a load-bearing frame (18). The bottom surface of the load-bearing frame (18) is fixedly installed with the top of the cylinder (6). The output end of the cylinder (6) is fixedly installed with the outer surface of the air collector shell (11).

7. A grinding device for lithium mica beneficiation according to claim 6, characterized in that: The outer surface of the load-bearing frame (18) is fixedly installed with a directional rail (19), and the outer surface of the air collecting shell (11) is installed with a directional wheel (20). The outer surface of the directional wheel (20) and the outer surface of the directional rail (19) are slidably connected.

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