A mill feed device

Abstract

The utility model discloses a kind of ore feeder of mill, it is related to ore processing equipment technical field, including conveying device, hopper, the hopper is equipped with the quantitative delivery of ore to feeding assembly;By the blanking port in feeding assembly and reducing component, the accurate control of ore feeding quantity can be realized.The size of blanking port is same with the size of hopper bottom opening, and the feeding quantity of each delivery is determined by the volume inside blanking port, so as to ensure the stability and consistency of feeding quantity;Reducing component can adjust the inner diameter of blanking port according to need, further accurately control feeding quantity, meet the demand under different working conditions;Servo motor drives screw rod and synchronous belt transmission are adopted, the movement of blanking port can be automatically controlled, realize the quantitative delivery of ore, reduce manual intervention, reduce labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of ore processing equipment technology, and in particular to a ore feeding device for a grinding mill. Background Technology

[0002] In the grinding process, the control of feed rate is one of the key factors affecting grinding efficiency and product quality. Traditional grinding mill feeding devices typically use simple hoppers and feeding equipment, such as vibrating feeders, disc feeders, or pendulum feeders. While these devices can transport ore, they have many shortcomings in accurately controlling the feed rate. For example, existing traditional feeding devices usually use simple weighing or flow meters to detect the ore feed rate. These devices have low detection accuracy and are easily affected by environmental factors (such as ore moisture and particle size), resulting in large detection errors. Utility Model Content

[0003] The purpose of this utility model is to provide a grinding mill feeding device to solve the problem that existing feeding devices cannot accurately control the feeding amount.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A ore feeding device for a grinding mill includes a conveying device and a hopper, wherein the hopper is equipped with a feeding component capable of quantitatively conveying ore.

[0006] The feeding assembly includes a mounting frame fixedly installed on the hopper. The discharge port is set on the mounting frame via a slider. A baffle is hinged to the bottom end of the discharge port. The mounting frame is equipped with a driving component that can drive the discharge port to move. The mounting frame is also equipped with an auxiliary component that is used in conjunction with the driving component. The discharge port is equipped with a variable diameter component that can change the feed rate.

[0007] As a further description of the above technical solution:

[0008] The drive component includes lead screws rotatably mounted on the mounting bracket, with a synchronous belt meshing between the two lead screws via gears, and a servo motor fixedly mounted on one side of the mounting bracket.

[0009] As a further description of the above technical solution:

[0010] The slider is threaded onto the lead screw, one end of which is fixedly connected to the output end of the servo motor, and the size of the discharge port is the same as the size of the bottom opening of the hopper.

[0011] As a further description of the above technical solution:

[0012] The auxiliary component includes a partition plate fixedly installed on one side of the discharge port, and a fixing frame is fixedly installed on the mounting frame.

[0013] As a further description of the above technical solution:

[0014] One side of the partition extends to the outside of the mounting frame, the baffle contacts the top of the fixing frame, and one end of the fixing frame is set as an inclined surface.

[0015] As a further description of the above technical solution:

[0016] The variable diameter assembly includes an inner cylinder disposed in the inner ring of the discharge port. The inner cylinder and the discharge port are respectively provided with slots, and the locking block is disposed on the inner cylinder by a spring.

[0017] As a further description of the above technical solution:

[0018] The dimensions of the inner cylinder are adapted to the inner ring dimensions of the discharge port, the dimensions of the locking block are adapted to the locking groove, and the locking block is slidably installed on the inner cylinder.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] The feeding assembly, including the discharge port and the variable diameter component, enables precise control of the ore feed rate. The discharge port size is identical to the bottom opening size of the hopper, and the feed rate for each delivery is determined by the internal volume of the discharge port, ensuring stability and consistency. The variable diameter component allows for adjustment of the discharge port's inner diameter as needed, further refining the feed rate to meet the demands of different operating conditions. A servo motor-driven screw and synchronous belt transmission automatically control the movement of the discharge port, achieving quantitative ore delivery, reducing manual intervention, and lowering labor intensity. The design of the partition and fixing frame enables automatic sealing and opening of the discharge port, further enhancing the automation level of the device. Attached Figure Description

[0021] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown;

[0022] Figure 2 A schematic diagram of a feeding assembly according to an embodiment of the present invention is shown;

[0023] Figure 3 A schematic diagram of a drive component according to an embodiment of the present invention is shown;

[0024] Figure 4 The present invention provides an embodiment of the present invention. Figure 3 Another perspective view;

[0025] Figure 5 A schematic diagram of a variable diameter assembly according to an embodiment of the present invention is shown;

[0026] Figure 6 A cross-sectional view of the feed inlet provided according to an embodiment of the present utility model is shown;

[0027] Figure 7 This diagram shows the effect of separating the discharge port and the inner cylinder according to an embodiment of the present invention.

[0028] Figure 8 A cross-sectional view of the inner cylinder provided according to an embodiment of the present invention is shown.

[0029] Legend:

[0030] 10. Conveying device; 11. Hopper;

[0031] 20. Feeding assembly; 21. Mounting bracket; 22. Discharge port; 23. Slider; 24. Baffle; 25. Drive component; 251. Lead screw; 252. Synchronous belt; 253. Servo motor; 26. Auxiliary component; 261. Partition plate; 262. Fixing bracket;

[0032] 30. Variable diameter assembly; 31. Inner cylinder; 32. Slot; 33. Block; 34. Spring. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1-8 As shown, the present invention provides a ore feeding device for a grinding mill, including a conveying device 10, which is a belt conveyor in the prior art. The conveying device 10 transports the ore to the grinding mill and the hopper 11. The hopper 11 can store the ore. The hopper 11 is equipped with a feeding component 20 that can quantitatively feed the ore.

[0035] The feeding assembly 20 includes a mounting frame 21 fixedly installed on the hopper 11. The discharge port 22 is set on the mounting frame 21 via a slider 23. The discharge port 22 is connected to the hopper 11, and the ore inside the hopper 11 can enter the discharge port 22. A baffle 24 is hinged to the bottom of the discharge port 22, which seals the discharge port 22. The mounting frame 21 is equipped with a driving component 25 that can drive the discharge port 22 to move. The mounting frame 21 is also equipped with an auxiliary component 26 that is used in conjunction with the driving component 25. The discharge port 22 is equipped with a variable diameter assembly 30 that can change the feed rate.

[0036] like Figures 2-3 As shown, the drive component 25 includes lead screws 251 rotatably mounted on the mounting bracket 21. A synchronous belt 252 meshes between the two lead screws 251 through gears. The gears are fixedly mounted on the two lead screws 251 respectively. Through the meshing transmission of the synchronous belt 252, the two lead screws 251 can rotate synchronously. A servo motor 253 is fixedly mounted on one side of the mounting bracket 21.

[0037] In more detail, the slider 23 is threaded onto the lead screw 251. When the lead screw 251 rotates, the slider 23 threaded to it will start to move. One end of the lead screw 251 is fixedly connected to the output end of the servo motor 253. The servo motor 253 can drive the lead screw 251 connected to it to rotate. The size of the discharge port 22 is the same as the size of the bottom opening of the hopper 11.

[0038] like Figure 4 As shown, the auxiliary component 26 includes a partition 261 fixedly installed on one side of the discharge port 22, and a fixing bracket 262 fixedly installed on the mounting bracket 21.

[0039] In more detail, one side of the partition 261 extends to the outside of the mounting bracket 21, and the baffle 24 contacts the top of the fixing bracket 262. The fixing bracket 262 acts as a block for the baffle 24, thereby sealing the bottom of the discharge port 22. One end of the fixing bracket 262 is set as an inclined surface.

[0040] In use, ore is poured into the hopper 11 and enters the discharge port 22 through the opening at the bottom of the hopper 11, filling the discharge port 22. Then, the servo motor 253 is started, which drives the lead screw 251 connected to it to rotate. Through the meshing transmission of the synchronous belt 252 and the gear, the two lead screws 251 can rotate synchronously, thereby causing the slider 23 to move the discharge port 22 toward the conveying device 10.

[0041] The movement of slider 23 also drives the partition 261 to move. The partition 261 blocks the opening at the bottom of hopper 11, preventing ore from falling through the bottom opening of hopper 11 after the discharge port 22 moves. When the discharge port 22 moves to the top of the conveying device 10, the baffle 24 at the bottom of the discharge port 22 will disengage from the top of the fixed frame 262. Therefore, the baffle 24 will flip due to its own weight and the action of the hinge, thus no longer sealing the discharge port 22. At this time, the ore inside the discharge port 22 will fall into the conveying device 10 and be conveyed by the conveying device 10. The amount of ore fed through the discharge port 22 each time is controlled by the volume inside the discharge port 22, thereby accurately controlling the amount of ore fed and ensuring the stable operation and efficient operation of the grinding mill.

[0042] After the conveying is completed, the discharge port 22 is driven to reset by the drive component 25. When the discharge port 22 is reset, the baffle 24 at its bottom will contact the inclined surface on the fixed frame 262. The pressure of the inclined surface causes the baffle 24 to flip through the hinge, so that it contacts the bottom of the discharge port 22 again and is located at the top of the fixed frame 262. As the discharge port 22 moves, the partition 261 will also move and reset until the discharge port 22 is completely fitted with the bottom opening of the hopper 11. This process is repeated to accurately control the amount of ore being conveyed.

[0043] like Figures 5-8 As shown, the variable diameter assembly 30 includes an inner cylinder 31 disposed in the inner ring of the discharge port 22. The inner cylinder 31 and the discharge port 22 are respectively provided with slots 32. The slots 32 on the inner cylinder 31 and the discharge port 22 are staggered. The locking block 33 is disposed on the inner cylinder 31 by a spring 34. The locking block 33 can be reset by the reaction force of the spring 34.

[0044] In more detail, the dimensions of the inner cylinder 31 are adapted to the inner ring dimensions of the discharge port 22, the dimensions of the locking block 33 are adapted to the locking groove 32, and the locking block 33 is slidably mounted on the inner cylinder 31.

[0045] When it is necessary to change the feed rate, it is only necessary to change the inner diameter of the feed port 22. By moving the feed port 22 onto the conveying device 10, the baffle 24 is in the open state. Then, the inner cylinder 31 is inserted into or removed from the feed port 22 to change the inner diameter of the feed port 22, thereby changing the internal capacity of the feed port 22.

[0046] When installing the inner cylinder 31, simply insert the inner cylinder 31 into the inside of the discharge port 22. At the same time as insertion, the arc surface of the locking block 33 is squeezed by the inner ring of the discharge port 22 and retracts. When the inner cylinder 31 is fully inserted, the reaction force of the spring 34 enables the locking block 33 to reset and be inserted into the corresponding slot 32 to fix the inner cylinder 31.

[0047] Meanwhile, inner cylinders of different sizes can be added inside the inner cylinder 31.

[0048] 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 ore feeding device for a grinding mill, comprising a conveying device (10) and a hopper (11), characterized in that, Also includes: The hopper (11) is equipped with a feeding assembly (20) capable of quantitatively conveying ore; The feeding assembly (20) includes a mounting frame (21) fixedly installed on the hopper (11), a discharge port (22) is set on the mounting frame (21) via a slider (23), a baffle (24) is hinged to the bottom end of the discharge port (22), a driving component (25) capable of driving the discharge port (22) to move is mounted on the mounting frame (21), an auxiliary component (26) used in conjunction with the driving component (25) is also mounted on the mounting frame (21), and a variable diameter assembly (30) capable of changing the feed rate is installed inside the discharge port (22).

2. The ore feeding device for a grinding mill according to claim 1, characterized in that, The drive component (25) includes lead screws (251) rotatably mounted on the mounting bracket (21), and a synchronous belt (252) meshes between the two lead screws (251) through gears. A servo motor (253) is fixedly mounted on one side of the mounting bracket (21).

3. The ore feeding device for a grinding mill according to claim 2, characterized in that, The slider (23) is threaded onto the lead screw (251), one end of which is fixedly connected to the output end of the servo motor (253), and the size of the discharge port (22) is the same as the size of the bottom opening of the hopper (11).

4. The ore feeding device for a grinding mill according to claim 1, characterized in that, The auxiliary component (26) includes a partition (261) fixedly installed on one side of the discharge port (22), and a fixing bracket (262) fixedly installed on the mounting bracket (21).

5. A mill feed rate device according to claim 4, characterized in that, One side of the partition (261) extends to the outside of the mounting bracket (21), the baffle (24) contacts the top of the fixing bracket (262), and one end of the fixing bracket (262) is set as an inclined surface.

6. A mill feed rate device according to claim 1, characterized in that, The variable diameter assembly (30) includes an inner cylinder (31) disposed in the inner ring of the discharge port (22). The inner cylinder (31) and the discharge port (22) are respectively provided with slots (32), and the locking block (33) is disposed on the inner cylinder (31) by means of a spring (34).

7. A mill feed rate device according to claim 6, characterized in that, The dimensions of the inner cylinder (31) are adapted to the inner ring dimensions of the discharge port (22), the dimensions of the locking block (33) are adapted to the locking groove (32), and the locking block (33) is slidably installed on the inner cylinder (31).

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