A mine stone material vibrating screening device

Abstract

The utility model relates to a kind of mine stone material vibrating screening devices, belong to metallurgical industry stone screening technical field.The technical scheme is: containing pedestal (1), screening box (2), discharge gate (3), elastic component (4), vibrating motor (5), screening assembly (6), screening box (2) is fixed on pedestal (1), multiple elastic components (4) are equipped between screening box (2) and pedestal (1), the top of screening box (2) is open structure, the bottom of screening box (2) is equipped with the discharge gate (3) and vibrating motor (5) of inclination arrangement, multiple screening assemblies (6) are arranged at equal intervals from top to bottom in the inside of screening box (2);The above of screening assembly (6) is additionally equipped with guide plate (14) in screening box (2).The beneficial effects of the utility model are: effectively solve the core pain point that traditional screening equipment screen hole is easy to block, artificial unblocking efficiency is low and dangerous, substantially improve the continuity and security of screening operation.

Description

Technical Field

[0001] This utility model relates to a vibrating screening device for mining stone materials, belonging to the field of stone screening technology in the metallurgical industry. Background Technology

[0002] In industries such as mining and building materials, vibrating screens are the core equipment for grading crushed stone. They separate stones of different sizes through the vibration of the screen plate, providing uniform raw materials for subsequent crushing and processing, which directly affects production efficiency and product quality.

[0003] Currently, most mainstream vibrating screening devices rely on motors to drive eccentric blocks to generate vibration, causing the stones to slide on the screen plate. Small-diameter crushed stones fall through the screen holes into the lower layer, while large-diameter crushed stones are discharged along the screen surface, completing the grading operation.

[0004] However, existing equipment generally suffers from technical shortcomings in material jamming removal: during the screening process, some gravel particles slightly larger than the screen openings are prone to getting stuck inside the screen holes, forming "blockages." If not cleaned in time, the number of blockages will gradually increase, leading to a reduction in the effective ventilation area of ​​the screen holes, reducing screening efficiency, and extending the processing cycle. Currently, the industry mostly uses manual cleaning methods, requiring workers to stop the machine and use tools to remove the stuck materials one by one, resulting in low cleaning efficiency and seriously affecting continuous production.

[0005] Therefore, developing a vibrating screening device for mining stone that can automatically clear material stuck in the screen holes without manual intervention has become an urgent need to solve the industry's pain points. Utility Model Content

[0006] The purpose of this invention is to provide a vibrating screening device for mining stone that can automatically clear material stuck in the screen holes, achieve accurate grading of stone, meet diverse processing needs, and solve the problems existing in the background technology.

[0007] The technical solution of this utility model is: A vibrating screening device for mining stone includes a base, a screening box, a discharge port, elastic components, a vibrating motor, and screening components. The screening box is fixed on the base, and multiple elastic components are provided between the screening box and the base. The top of the screening box has an open structure, and the bottom of the screening box has an inclined discharge port and a vibrating motor. Multiple screening components are arranged at equal intervals from top to bottom inside the screening box.

[0008] The screening box contains multiple screening components arranged at equal intervals from top to bottom. Each component includes a discharge box fixed in the middle of the screening box and screen boxes symmetrically arranged on both sides of the discharge box. The screen hole diameter of the screen boxes decreases progressively from top to bottom. The bottom of the discharge box has a slag discharge port, and the two sides of the discharge box have symmetrical feed inlets with rotatable doors installed inside the feed inlets. The screen boxes on both sides of the discharge box are equipped with a tilting shaft, which is rotatably installed inside the screening box. The screening box is also equipped with a drive component that rotates relative to the screen boxes.

[0009] The drive assembly for the relative flipping of the screen boxes includes a gear set and a synchronous pulley set. The flipping shafts on both sides of the screen boxes of the discharge box are driven by the gear set. The gear set is located outside the screening box. One of the flipping shafts is driven by the first motor. The flipping shafts in the upper and lower screening assemblies are connected by the synchronous pulley set.

[0010] The screen box is also equipped with an ejection unit, which includes a roller shaft rotatably mounted on the bottom surface of the screen box and a power module that drives the roller shaft to reciprocate. The roller shaft is provided with multiple protrusions that are fitted with the screen holes of the screen box.

[0011] The power module for driving the reciprocating motion of the roller shaft includes a lead screw, a guide rod, and a mounting base. The lead screw is rotatably mounted on one side of the screen box and is driven by a second motor. A nut is installed on the lead screw. The guide rod is fixedly mounted on the other side of the screen box. A sliding sleeve is movably mounted on the guide rod. Mounting bases are fixedly mounted on both the nut and the sliding sleeve. The two ends of the roller shaft are rotatably mounted on the two mounting bases.

[0012] The screening box is also equipped with a guide plate located above the screening components.

[0013] Multiple springs are also installed between the discharge box and the hatch.

[0014] The beneficial effects of this utility model are: through the integrated design of "high-efficiency screening + automatic unblocking", this utility model effectively solves the core pain points of traditional screening equipment, such as easy clogging of screen holes, low efficiency and danger of manual unblocking, and greatly improves the continuity and safety of screening operations.

[0015] In the screening stage, the screen holes of the multi-layer screening components gradually decrease from top to bottom, which can achieve precise grading of stone materials and meet diverse processing needs. In the unblocking stage, the drive component drives multiple screen boxes to rotate synchronously through the gear set and synchronous belt pulley set, pouring large stones and stuck materials on the surface into the discharge box. With the help of the roller shaft and protrusion of the ejection unit, stubborn stuck materials in the screen holes are ejected. No manual tools are needed to remove them throughout the process, completely replacing the dangerous manual unblocking operation. At the same time, the hatch opens and closes automatically by spring without the need for separate control, and the degree of automation is high. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 Another perspective structural diagram; Figure 3 for Figure 1 Internal structure diagram; Figure 4 for Figure 3 Enlarged view of section A; Figure 5 for Figure 3 Enlarged view of section B; Figure 6 for Figure 3 Enlarged 3D view of the intermediate screen box and discharge box; Figure 7 for Figure 6 Another magnified view; In the diagram: 1. Base; 2. Screening box; 3. Discharge port; 4. Elastic component; 5. Vibrating motor; 6. Screening assembly; 7. Screen box; 8. Screen holes; 9. Discharge box; 10. Door; 11. Spring; 12. Fixing plate; 13. Tilting shaft; 14. Guide plate; 15. Support plate; 16. Gear set; 17. Synchronous belt pulley set; 18. First motor; 19. Protective cover; 20. Roller shaft; 21. Protrusion; 22. Lead screw; 23. Nut; 24. Guide rod; 25. Mounting seat; 26. Dust cover; 27. Slag discharge port; 28. Second motor. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] See attached document Figure 1-7 A vibrating screening device for mining stone includes a base 1, a screening box 2, a discharge port 3, elastic components 4, a vibrating motor 5, and screening components 6. The screening box 2 is fixed on the base 1, and multiple elastic components 4 are provided between the screening box 2 and the base 1. The top of the screening box 2 is an open structure, and the bottom of the screening box 2 is provided with an inclined discharge port 3 and a vibrating motor 5. Multiple screening components 6 are arranged at equal intervals from top to bottom inside the screening box 2.

[0019] In this embodiment, please refer to Figure 1-7 The screening device includes a base 1, a screening box 2, a discharge port 3, an elastic component 4, a vibrating motor 5, a screening component 6, a screen box 7, screen holes 8, a discharge box 9, a door 10, a spring 11, a fixing plate 12, a tilting shaft 13, a guide plate 14, a support plate 15, a gear set 16, a synchronous belt pulley set 17, a first motor 18, a protective cover 19, a roller 20, a protrusion 21, a lead screw 22, a nut 23, a guide rod 24, a mounting base 25, a dust cover 26, a slag discharge port 27, and a second motor 28, wherein: The top-opening screening box 2 is fixed to the base 1. The bottom of the screening box 2 is equipped with an inclined discharge port 3 and a vibrating motor 5. Multiple elastic components 4 are provided between the screening box 2 and the base 1. The base 1 provides stable support for the entire device. The screening box 2 serves as the core screening space. The top opening facilitates the feeding of stone materials, and the inclined discharge port 3 guides the small-diameter stone materials screened from the lower layer to be discharged quickly. The elastic components 4, such as springs, work with the vibrating motor 5 to generate high-frequency vibration, causing the stone materials to slide evenly on the screen surface, providing power for screening, while buffering the impact of vibration on the base 1 and extending the service life of the equipment.

[0020] The screening box 2 is equipped with multiple screening components 6 arranged at equal intervals from top to bottom. Each screening component 6 includes a discharge box 9 fixedly installed in the middle of the screening box 2 and screen boxes 7 symmetrically arranged on both sides of the discharge box 9. The diameter of the screen holes 8 in the screen boxes 7 decreases progressively from top to bottom. The bottom of the discharge box 9 has a slag discharge port 27 that extends outside the screening box 2. The sides of the discharge box 9 have symmetrical feed ports, and a door 10 is rotatably installed inside the feed port. Multiple springs 11 are also installed between the discharge box 9 and the door 10. The screen boxes 7 achieve stone grading through different hole diameters to meet diverse processing needs. The discharge box 9 is used to collect large stones and stuck materials during unblocking. The inclined slag discharge port 27 ensures rapid discharge from the screening box 2. The door 10 is kept closed by the springs 11 during the screening stage to prevent stones from falling into the discharge box 9. During unblocking, it is opened by the flipped screen box 7 to allow material to enter. No manual opening or closing is required, resulting in a high degree of automation.

[0021] A fixing plate 12 is symmetrically fixedly installed on the bottom of the screen box 7 near the discharge box 9. A tilting shaft 13 is fixedly installed on the fixing plate 12. The tilting shaft 13 is rotatably installed inside the screening box 2. The screening box 2 is also equipped with a drive assembly that tilts the screen box 7 relative to it. The fixing plate 12 firmly connects the screen box 7 and the tilting shaft 13 to ensure stable force during tilting. The tilting shaft 13 provides a fulcrum for the tilting of the screen box 7. The drive assembly drives it to rotate, causing the screen box 7 to tilt towards the discharge box 9, pouring large stones and materials stuck in the screen holes 8 into the discharge box 9, realizing automatic unblocking without the need for manual removal with tools, thus solving the problem of low efficiency of manual unblocking in the prior art.

[0022] Please see Figure 3 Inside the screening box 2, above the screening component 6, a guide plate 14 is fixedly installed. The guide plate 14 can accurately guide the input stone into the screen box 7, preventing the stone from leaking out from the edge of the screen box 7. Inside the screening box 2, below the screening component 6, a support plate 15 is fixedly installed. During the screening stage, the support plate 15 provides support for the end of the screen box 7 away from the tilting shaft 13, preventing the screen box 7 from sagging and deforming due to the weight of the stone, ensuring the screen surface is horizontal and guaranteeing screening accuracy. When clearing blockages, the support plate 15 tilts and disengages from the support, without affecting the clearing action.

[0023] Please see Figure 1 , Figure 2 and Figure 6 The drive assembly for the tilting of the screen box 7 includes a gear set 16 and a synchronous pulley set 17. The tilting shafts 13 on both sides of the screen boxes 7 in the discharge box 9 are driven by the gear set 16. The gear set 16 is located outside the screening box 2. One of the tilting shafts 13 is driven by a first motor 18 mounted on the screening box 2. The tilting shafts 13 in the upper and lower screening components 6 are connected by the synchronous pulley set 17. The first motor 18 provides the driving force, and the gear set 16 enables the two screen boxes 7 within the same screening component 6 to tilt relative to each other. The synchronous pulley set 17 drives the upper and lower screening components 6 to move synchronously, ensuring that the unclogging of multiple screen boxes 7 is coordinated and consistent, eliminating the need for individual drives and simplifying the structure.

[0024] Please see Figure 2 A protective cover 19 is also fixedly installed at the position corresponding to the gear set 16 outside the screening box 2. The protective cover 19 prevents mine dust from adhering to the surface of the gear set 16, avoids gear meshing jamming, ensures stable operation of the drive component, and reduces maintenance frequency.

[0025] Please see Figure 3 , Figure 4 , Figure 6 and Figure 7 The screen box 7 is also equipped with an ejection unit, which includes a roller 20 rotatably mounted on the bottom surface of the screen box 7 and a power module that drives the roller 20 to reciprocate. The side wall of the roller 20 has multiple protrusions 21 arranged in an array, and the protrusions 21 are clearance-fitted with the corresponding screen holes 8 of the screen box 7. The power module includes a lead screw 22, a guide rod 24, and a mounting base 25. The lead screw 22 is rotatably mounted on one side of the screen box 7 and is driven by a second motor 28 located on the side of the screen box 7. A nut 23 is mounted on the lead screw 22, and the guide rod 24... 4 is fixedly installed on the other side of the screen box 7. A sliding sleeve is movably installed on the guide rod 24. A mounting seat 25 is fixedly installed on both the nut 23 and the sliding sleeve. The roller shaft 20 is rotatably installed on the two mounting seats 25. The second motor 28 drives the lead screw 22 to rotate, which drives the nut 23 and the mounting seat 25 to move along the guide rod 24, so that the roller shaft 20 slides back and forth on the bottom surface of the screen box 7. The protrusion 21 is inserted into the screen hole 8. With the rotation and movement of the roller shaft 20, it pushes out the stubborn stones stuck in the screen hole 8, further improving the unblocking effect.

[0026] Please see Figure 6 and Figure 7 Dust covers 26 are also fixedly installed on both sides of the screen box 7 at the positions of the lead screw 22 and the guide rod 24. The dust covers 26 prevent stone dust from entering the transmission parts of the lead screw 22 and the guide rod 24, avoid jamming or wear, and ensure smooth operation of the ejection unit.

[0027] During screening, the vibrating motor 5 is started, and the elastic component 4 drives the screening box 2 to vibrate at high frequency. The stone is fed from the top of the screening box 2 and guided into the screen box 7 by the guide plate 14. The stone slides under the action of vibration, and the small-diameter stone falls into the lower screen box 7 through the screen hole 8. The lower screen hole is even smaller, which achieves further classification. Finally, the small stone is discharged from the bottom outlet 3. When the screen hole 8 is jammed, the feeding is stopped and the first motor 18 is started: it drives all the tilting shafts 13 to rotate through the gear set 16 and the synchronous belt pulley set 17. The screen box 7 tilts towards the discharge box 9 and pushes open the hatch 10. The large stones on the surface and some of the jammed material slide into the discharge box 9 and are discharged through the slag discharge port 27. At the same time, the second motor 28 is started. The lead screw 22 drives the roller shaft 20 to move back and forth along the bottom surface of the screen box 7. The protrusion 21 inserts into the screen hole 8 and pushes out the stubborn jammed material, which falls into the discharge box 9 as the screen box 7 tilts. After the blockage is cleared, the first motor 18 reverses to reset the screen box 7, and the support plate 15 re-supports the screen box 7, thus resuming the screening operation. The entire process requires no manual intervention, solving the problems of screen hole blockage and difficult cleaning in the background technology.

Claims

1. A mine stone material vibrating screening apparatus, characterized by: It includes a base (1), a screening box (2), a discharge port (3), an elastic component (4), a vibration motor (5), and a screening component (6). The screening box (2) is fixed on the base (1). Multiple elastic components (4) are provided between the screening box (2) and the base (1). The top of the screening box (2) is an open structure. The bottom of the screening box (2) is provided with an inclined discharge port (3) and a vibration motor (5). Multiple screening components (6) are arranged at equal intervals from top to bottom inside the screening box (2).

2. A mine stone material vibrating screening device according to claim 1, characterized in that: The screening box (2) contains multiple screening components (6) arranged at equal intervals from top to bottom. Each component includes a discharge box (9) fixed in the middle of the screening box (2) and screen boxes (7) symmetrically arranged on both sides of the discharge box (9). The diameter of the screen holes (8) of the screen boxes (7) in the multiple screening components (6) decreases from top to bottom. The bottom of the discharge box (9) is provided with a slag discharge port (27). The two sides of the discharge box (9) are symmetrically provided with feed inlets. A door (10) is rotatably installed in the feed inlet. The screen boxes (7) on both sides of the discharge box (9) are respectively provided with a flipping shaft (13). The flipping shaft (13) is rotatably installed in the screening box (2). The screening box (2) is also provided with a drive component that flips relative to the drive screen box (7).

3. A mine stone material vibrating screening device according to claim 2, characterized in that: The drive assembly for the relative flipping of the drive screen box (7) includes a gear set (16) and a synchronous pulley set (17). The flipping shafts (13) on both sides of the screen box (7) of the discharge box (9) are driven by the gear set (16). The gear set (16) is located outside the screening box (2). One of the flipping shafts (13) is driven by the first motor (18). The flipping shafts (13) in the upper and lower screening assemblies (6) are connected by the synchronous pulley set (17).

4. The vibrating screening device for mining stone according to claim 3, characterized in that: The sieve box (7) is also equipped with an ejection unit, which includes a roller (20) rotatably mounted on the bottom surface of the sieve box (7) and a power module that drives the roller (20) to reciprocate. The roller (20) is provided with multiple protrusions (21) that are in clearance fit with the sieve holes (8) of the sieve box (7).

5. A mine stone material vibrating screening device according to claim 4, characterized in that: The power module for reciprocating the drive roller shaft (20) includes a lead screw (22), a guide rod (24), and a mounting base (25). The lead screw (22) is rotatably mounted on one side of the screen box (7) and driven by a second motor (28). A nut (23) is mounted on the lead screw (22). The guide rod (24) is fixedly mounted on the other side of the screen box (7). A sliding sleeve is movably mounted on the guide rod (24). Mounting bases (25) are fixedly mounted on both the nut (23) and the sliding sleeve. The two ends of the roller shaft (20) are rotatably mounted on the two mounting bases (25).

6. A mine stone material vibrating screening device according to claim 1, characterized in that: The screening box (2) is also equipped with a guide plate (14) located above the screening component (6).

7. A mine stone material vibrating screening device according to claim 2, characterized in that: Multiple springs (11) are also installed between the discharge box (9) and the hatch (10).

Images