Ball mill feeding device for concentrator

Abstract

The utility model discloses a ball mill feeding equipment for ore dressing plant, including conveying device, screening and storing device, conveying device is connected with screening and storing device, conveying device still include belt conveying mechanism, blanking mechanism, spiral feeding device, screening and storing device still include screening device, storage device, conveying device, screening and storing device all are connected with dust extraction device. The utility model's function is that compared with above -mentioned prior art, subtracts a crushing procedure, avoids the processing efficiency reduction, the device has increased screening device, can remove the large -sized granule ore material, impurity in ore material simultaneously without the influence feeding efficiency, and utilize dust extraction device to reduce the dust to workshop environment's pollution, the device passes through the design storage device, to the pre -storage mode, solved if the front equipment breaks down, the rear cannot continue to feed ball mill and influence processing efficiency problem.

Description

Technical Field

[0001] This utility model patent belongs to the field of mineral processing equipment technology, specifically relating to a ball mill feeding device for mineral processing plants. Background Technology

[0002] Mineral processing is the most crucial step in the entire mineral production process. It can significantly improve the quality of mineral raw materials, reduce transportation costs, alleviate difficulties in further processing, lower processing costs, and enable the comprehensive utilization of mineral raw materials. During mineral processing, ore needs to be screened and crushed. Crushing is further divided into coarse crushing, medium crushing, and fine crushing. Unqualified ore from the screening between these three steps must be returned to the previous step for further crushing and screening. Ball mills are key equipment for the fine crushing of ore after medium crushing.

[0003] Ball mills are fed through a feeding structure during operation. Existing ball mill feeding structures mainly rely on the gravity of the ore to fall or on an active feeding device. For example, Chinese Patent (CN220969340U) discloses a feeding device for a ball mill used in mineral processing, which includes a feeding section. Two sets of crushing rollers are slidably and adjustablely installed in the feeding section, and a drive structure is set in conjunction with the crushing rollers. A guide plate is hinged in the feeding section above the crushing rollers, and a drive cylinder is hinged between the guide plate and the inner wall of the feeding section. A guide section is inclinedly set below the feeding section, and a dust collection hood is connected to the top wall of the guide section. A dust collection pipe is connected to the dust collection hood, and a dust collection box is connected to the end of the dust collection pipe. A fan is installed in the dust collection box. A connecting section is horizontally connected to the bottom of the guide section. A screw conveyor shaft is rotatably installed in the connecting section through a bearing, and a drive motor is installed on the side wall of the connecting section to drive the screw conveyor shaft.

[0004] The inventors discovered through research that the device has the following defects: Although the device can pre-crush the ore before feeding, this step is actually unnecessary because it is equivalent to adding another crushing process between the medium and fine crushing processes. Moreover, the low feeding efficiency of the crushing roller will reduce the efficiency of subsequent processing. In addition, before the ore enters the ball mill, it needs to be transported by the conveying equipment between the intermediate crushing and screening equipment and the ball mill equipment. However, the transportation process is not completely sealed. Large particles of ore and impurities may fall into the ore along the way, causing pollution to the ore. Furthermore, during the process of feeding the ore from the transport equipment into the ball mill's feeding device, the dust carried by the ore will cause dust pollution, affecting the on-site processing environment.

[0005] Meanwhile, because ball mills need to crush materials in batches, each time the aforementioned equipment is fed, it is affected not only by the crushing rollers at the top, but also by the transport equipment between the intermediate crushing and screening equipment and the ball mill. If either of these two pieces of equipment malfunctions, it will affect the efficiency of subsequent processes.

[0006] Therefore, this paper proposes a ball mill feeding device for mineral processing plants. Utility Model Content

[0007] To solve the above problems, this utility model is achieved through the following technical solution: a ball mill feeding device for a mineral processing plant, including a conveying device and a screening and storage device. The conveying device is connected to the screening and storage device. The conveying device also includes a belt conveyor mechanism, a feeding mechanism, and a screw conveyor. The belt conveyor mechanism is connected to the feed inlet A of the screening and storage device through the feeding mechanism. The screw conveyor is installed on the lower side of the storage device of the screening and storage device. The screening and storage device also includes a screening device and a storage device. The front end of the screening device is provided with a feed inlet A, the lower side of the screening device is installed with a storage device, and the rear end of the screening device is provided with a discharge outlet. Both the conveying device and the screening and storage device are connected to a dust collection device.

[0008] Preferably, the feeding mechanism further includes a feeding box, an anti-slip brush wheel, and a feeding valve. The feeding box is installed at the discharge end of the belt conveyor mechanism, the anti-slip brush wheel is installed in the feeding box below the discharge end of the belt conveyor mechanism, and the feeding valve is installed on the lower side of the feeding box.

[0009] Preferably, the screening device further includes a drum screen, a slide rail, a screening box, a roller support group, a spiral guide rail, a large gear, a small gear, and a drive motor A. The drum screen is rolled on the roller support group inside the screening box via the slide rail on its outer side. A spiral guide rail is provided inside the drum screen. A large gear is provided on the outer side of the front end of the drum. A small gear is meshed and connected below the large gear. The front side of the small gear is connected to the drive end of the drive motor A. The drive motor A is installed on the front side of the screening box.

[0010] Preferably, the spiral conveying device further includes a conveying bin, a spiral stirring rod, a drive motor B, a chute, and a support. The conveying bin is installed at the bottom of the screening box, the spiral stirring rod is rotatably installed in the conveying bin, the front end of the spiral stirring rod is connected to the drive motor B, the drive motor B is installed on the front side of the screening box, the rear end of the spiral stirring rod is rotatably installed on the support, and a chute is provided at the end of the conveying bin, which is rotatably installed inside the ball mill feed inlet B.

[0011] Preferably, a limit block A is provided on the front side of the slide, and a limit block B is installed on the rear side of the slide by bolts.

[0012] Preferably, the dust collection device further includes an exhaust gas absorption hood, a dust collection pipe, and a dust extraction fan. The exhaust gas absorption hood is installed on top of the screening box and the belt conveyor mechanism. The front end of the dust collection pipe is connected to the exhaust gas absorption hood and the material box respectively through a three-way connector, and the rear end of the dust collection pipe is connected to the dust extraction fan.

[0013] The beneficial effects of this utility model are: Compared with the existing technology, this device eliminates a crushing process, thus avoiding a decrease in processing efficiency. The device adds a screening device, which can remove large particles and impurities from the ore without affecting the feeding efficiency. It also uses a dust collection device to reduce dust pollution to the workshop environment. The device is designed with a storage device to pre-store materials, which solves the problem of insufficient material supply to the ball mill if the upstream equipment fails, thus affecting the processing efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the present invention; Figure 3 This is a right view of the present invention; Figure 4 This utility model Figure 3 A cross-sectional view of section A; Figure 5 This utility model Figure 4 A cross-sectional view of section B; Figure 6 This is the front view of the present utility model; Figure 7 This utility model Figure 6 A cross-sectional view of section C; The attached diagram lists the components represented by each number as follows: 1. Belt conveyor mechanism; 2. Storage device; 3. Feed inlet A; 4. Discharge outlet; 5. Feed box; 6. Anti-slip brush wheel; 7. Feed valve; 8. Rotary drum screen; 9. Slide rail; 10. Screening box; 11. Roller support group; 12. Spiral guide rail; 13. Large gear; 14. Small gear; 15. Drive motor A; 16. Conveying bin; 17. Spiral stirring rod; 18. Drive motor B; 19. Slide chute; 20. Support; 21. Limiting block A; 22. Bolt; 23. Limiting block B; 24. Exhaust gas absorption hood; 25. Dust suction pipe; 26. Feed inlet B. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example 1

[0016] like Figures 1 to 7 As shown, the prior art in this embodiment has the following problems: The inventors have found that a ball mill feeding device for mineral processing, as disclosed in Chinese Patent (CN220969340U), has the following defects: Although the device can pre-crush the ore before feeding, this step is actually unnecessary because it is equivalent to adding another crushing process between the intermediate crusher and the fine crusher, and the feeding efficiency of the crushing roller is low, which will reduce the subsequent processing efficiency; In addition, before the ore enters the ball mill, the ore needs to be transported through the conveying equipment between the intermediate crusher and the ball mill, but the conveying... The process is not completely sealed. Large particles and impurities may fall into the ore and contaminate it. Furthermore, dust carried by the ore during the feeding process from the transport equipment to the ball mill can cause dust pollution, affecting the on-site processing environment. At the same time, because the ball mill crushes ore in batches, each feeding is affected not only by the crushing rollers at the top but also by the transport equipment between the intermediate crushing and screening equipment and the ball mill. If either of these two pieces of equipment malfunctions, it will affect the efficiency of subsequent processes.

[0017] Therefore, the inventor provides a ball mill feeding device for a mineral processing plant, including a conveying device and a screening and storage device 2. The conveying device is connected to the screening and storage device 2. The conveying device also includes a belt conveyor mechanism 1, a feeding mechanism, and a screw conveyor. The belt conveyor mechanism 1 is connected to the feed inlet A3 of the screening and storage device 2 through the feeding mechanism. The screw conveyor is installed on the lower side of the storage device 2. The screening and storage device 2 also includes a screening device and a storage device 2. The front end of the screening device is provided with a feed inlet A3, the lower side of the screening device is installed with the storage device 2, and the rear end of the screening device is provided with a discharge outlet 4. Both the conveying device and the screening and storage device 2 are connected to a dust collection device.

[0018] Its effects are as follows: Compared with the existing technology mentioned above, this device eliminates a crushing process, thus avoiding a reduction in processing efficiency; the device adds a screening device, which can remove large particles and impurities from the ore without affecting the feeding efficiency, and the dust collection device avoids dust pollution of the workshop environment; the device solves the problem of affecting processing efficiency if the upstream equipment fails and the downstream cannot continue to feed the ball mill, by designing a storage device 2 to store materials in advance.

[0019] Furthermore, the feeding mechanism provided in this embodiment also includes a feeding box 5, an anti-slipping brush wheel 6, and a feeding valve 7. The feeding box 5 is installed at the discharge end of the belt conveyor 1, the anti-slipping brush wheel 6 is installed in the feeding box 5 below the discharge end of the belt conveyor 1, and the feeding valve 7 is installed on the lower side of the feeding box 5. When the ore passes through the feeding mechanism, the anti-slipping brush wheel 6 brushes away the ore stuck to the belt, preventing the belt from blocking the belt conveyor. The feeding amount can also be controlled by the feeding valve 7.

[0020] Furthermore, the screening device provided in this embodiment also includes a drum screen 8, a slide rail 9, a screening box 10, a roller support assembly 11, a spiral guide rail 12, a large gear 13, a small gear 14, and a drive motor A15. The drum screen 8 is rotatably mounted on the roller support assembly 11 inside the screening box 10 via the slide rail 9 on its outer side. The spiral guide rail 12 is provided inside the drum screen 8. A large gear 13 is provided on the outer side of the front end of the drum. A small gear 14 is meshed and connected below the large gear 13. The front side of the small gear 14 is connected to the drive end of the drive motor A15. The drive motor A15... Installed on the front side of the screening box 10; when the ore enters the screening device, a large amount of ore with qualified particle size will be quickly screened into the storage device 2 for storage, while a small amount of ore with unqualified particle size will be guided by the spiral guide rail 12 to be discharged from the discharge port 4. At the same time, this structure will not affect the feeding efficiency. The discharge port 4 can be connected to the inlet of the receiving hopper (not shown in the figure), and the receiving hopper can be closed. In this way, the dust generated during discharge can be removed by the dust collection device above the screening box 10, reducing dust and reducing dust pollution to the workshop environment.

[0021] Furthermore, the spiral conveying device provided in this embodiment also includes a conveying bin 16, a spiral stirring rod 17, a drive motor B18, a chute 19, and a support 20. The conveying bin 16 is installed at the bottom of the screening box 10. The spiral stirring rod 17 is rotatably installed in the conveying bin 16. The front end of the spiral stirring rod 17 is connected to the drive motor B18, which is installed on the front side of the screening box 10. The rear end of the spiral stirring rod 17 is rotatably installed on the support 20. A chute 19 is provided at the end of the conveying bin 16. The chute 19 is rotatably installed inside the ball mill feed inlet B26. When the ball mill needs to be fed, the spiral conveying device can promptly transport the ore in the storage device 2 to the ball mill.

[0022] Furthermore, in this embodiment, a limiting block A21 is provided on the front side of the chute 19, and a limiting block B23 is installed on the rear side of the chute 19 by bolts 22. When installing this device, the rear end of the screw conveyor device needs to be slidably installed inside the ball mill inlet B26 by bolts 22 and limiting block B23. Since the screw conveyor device is connected to the ball mill inlet B26, the dust between the two will be drawn away by the dust collection device.

[0023] Furthermore, the dust collection device provided in this embodiment also includes an exhaust gas absorption hood 24, a dust collection pipe 25, and a dust extraction fan. The exhaust gas absorption hood 24 is installed on the top of the screening box 10 and the belt conveyor mechanism 1. The front end of the dust collection pipe 25 is connected to the exhaust gas absorption hood 24 and the material box 5 respectively through a three-way connector, and the rear end of the dust collection pipe 25 is connected to the dust extraction fan. This structure can remove the generated dust, reduce dust generation, and reduce dust pollution to the workshop environment.

[0024] The working principle of this utility model is as follows: During installation, the rear end of the screw conveyor device needs to be slidably installed inside the ball mill feed inlet B using bolts 22 and limit block B23. In use, the ore on the belt conveyor 1 can enter the screening device through the feeding mechanism. During feeding, the anti-slip brush wheel 6 removes ore stuck to the belt, and the feeding valve 7 controls the feeding amount. After the ore enters the screening device, a large amount of ore with the correct particle size is quickly screened into the storage device 2 for storage, while a small amount of ore with an incorrect particle size is guided by the screw guide rail 12 and discharged from the outlet 4. When the ball mill needs to be fed, the screw conveyor device can promptly transport the ore from the storage device 2 into the ball mill. Simultaneously, the belt conveyor 1, feeding mechanism, and screening device operate to fill the storage device 2. During the above process, the dust extraction device can remove the generated dust, reducing dust pollution to the workshop environment.

[0025] 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.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 ball mill feeding device for a mineral processing plant, comprising a conveying device and a screening and storage device (2), wherein the conveying device is connected to the screening and storage device (2), characterized in that: The conveying device also includes a belt conveyor (1), a feeding mechanism, and a screw conveyor. The belt conveyor (1) is connected to the feed inlet A (3) of the screening and storage device (2) through the feeding mechanism. The screw conveyor is installed on the lower side of the storage device (2) of the screening and storage device (2). The screening and storage device (2) also includes a screening device and a storage device (2). The front end of the screening device is provided with a feed inlet A (3), the lower side of the screening device is provided with a storage device (2), and the rear end of the screening device is provided with a discharge port (4). The conveying device and the screening and storage device (2) are both connected to a dust collection device.

2. The ball mill feeding device for a mineral processing plant according to claim 1, characterized in that: The feeding mechanism also includes a feeding box (5), an anti-carrying brush wheel (6), and a feeding valve (7). The feeding box (5) is installed at the discharge end of the belt conveyor (1). The anti-carrying brush wheel (6) is installed in the feeding box (5) below the discharge end of the belt conveyor (1). The feeding valve (7) is installed on the lower side of the feeding box (5).

3. The ball mill feeding device for a mineral processing plant according to claim 1, characterized in that: The screening device also includes a drum screen (8), a slide rail (9), a screening box (10), a roller support group (11), a spiral guide rail (12), a large gear (13), a small gear (14), and a drive motor A (15). The drum screen (8) is rolled on the roller support group (11) inside the screening box (10) via the slide rail (9) on its outer side. The inner side of the drum screen (8) is provided with a spiral guide rail (12). The outer side of the front end of the drum is provided with a large gear (13). The small gear (14) is meshed and connected below the large gear (13). The front side of the small gear (14) is connected to the drive end of the drive motor A (15). The drive motor A (15) is installed on the front side of the screening box (10).

4. The ball mill feeding device for a mineral processing plant according to claim 1, characterized in that: The spiral conveying device further includes a conveying bin (16), a spiral stirring rod (17), a drive motor B (18), a chute (19), and a bracket (20). The conveying bin (16) is installed at the bottom of the screening box (10). The spiral stirring rod (17) is rotatably installed in the conveying bin (16). The front end of the spiral stirring rod (17) is connected to the drive motor B (18). The drive motor B (18) is installed on the front side of the screening box (10). The rear end of the spiral stirring rod (17) is rotatably installed on the bracket (20). A chute (19) is provided at the end of the conveying bin (16). The chute (19) is rotatably installed inside the ball mill feed inlet B (26).

5. The ball mill feeding device for a mineral processing plant according to claim 4, characterized in that: The sliding groove (19) is provided with a limiting block A (21) on the front side, and a limiting block B (23) is installed on the rear side of the sliding groove (19) by bolts (22).

6. The ball mill feeding device for a mineral processing plant according to claim 1, characterized in that: The dust collection device also includes an exhaust gas absorption hood (24), a dust collection pipe (25), and a dust extraction fan. The exhaust gas absorption hood (24) is installed on the top of the screening box (10) and the belt conveyor mechanism (1). The front end of the dust collection pipe (25) is connected to the exhaust gas absorption hood (24) and the feeding box (5) respectively through a three-way connector. The rear end of the dust collection pipe (25) is connected to the dust extraction fan.

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