Ore screening device

Abstract

The utility model provides an ore screening device, which relates to the technical field of ore screening, and comprises a screening box, a vibrating frame, a plurality of screening plates, a plurality of first material guide plates and a plurality of material conveying components used for adjusting the ore output quantity, the screening box is arranged on the vibrating frame, and a vibrating motor is arranged at the bottom of the screening box; the multiple screening plates are obliquely installed in the screening box from top to bottom, corresponding first material guiding plates are obliquely arranged below the multiple screening plates correspondingly and connected with the screening box, the upper ends of the multiple material conveying assemblies are rotationally connected with the screening box correspondingly, and the lower ends of the multiple material conveying assemblies are slidably connected with the screening box. The conveying assemblies are arranged below the corresponding first guide plates, a feeding hopper is arranged above the screening box, the screening box communicates with a plurality of discharging assemblies, and the discharging assemblies are used for outputting ore screened by the corresponding screening plates, the amount of the ore output to the input end of the lower-stage screening plate can be controlled, the screening time of the ore on the lower-stage screening plate is prolonged, and the screening efficiency is improved. And the ore screening efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of ore screening technology, and in particular to an ore screening device. Background Technology

[0002] Existing ore screening machines often employ a multi-stage screen structure. By setting different levels of screens, the ore is divided into multiple particle size grades such as coarse, medium, and fine. For example, an ore grading and screening device (CN222020043U) has three layers of screens installed inside the screening box. The screening box is vibrated by a vibrating motor. The first screen performs the first stage of screening, and the screened ore is discharged from the first outlet. The ore falls onto the surface of the second screen, which performs the second stage of screening, and the screened ore is discharged from the second outlet. The ore falls onto the surface of the third screen, which performs the third stage of screening, and the screened ore is discharged from the third outlet. The fourth stage of screening is completed through the fourth outlet.

[0003] The following drawbacks exist in using this technology to screen ore: 1. Ore screened by the upper screen plate falls directly onto the lower screen plate, making it impossible to effectively control the ore input to the lower screen plate and affecting the screening effect; 2. Ore screened by the upper screen plate falls directly onto the output end of the lower screen plate, resulting in insufficient residence time of the ore on the screen plate. Some unscreened ore is directly output through the output end of the lower screen plate, affecting the screening effect; 3. The output ends of each screen plate face different directions, making ore collection difficult. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing an ore screening device, which aims to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ore screening device includes a screening box, a vibrating frame, several screen plates, several first guide plates, and several conveying components for adjusting the ore output. The screening box is mounted on the vibrating frame, and a vibrating motor is installed at the bottom of the screening box. The several screen plates are installed inclined from top to bottom inside the screening box. Corresponding first guide plates are inclinedly arranged below the screen plates and connected to the screening box. The upper ends of the several conveying components are rotatably connected to the screening box, and the lower ends of the several conveying components are slidably connected to the screening box. The conveying components are arranged below the corresponding first guide plates. A feed hopper is provided above the screening box, and the screening box is connected to several discharge components for outputting the ore screened by the corresponding screen plates.

[0007] Preferably, the feeding assembly includes a feeding plate and a rotating shaft. The upper end of the feeding plate is connected to the rotating shaft, and both ends of the rotating shaft are rotatably connected to the screening box. Slider blocks are connected to both sides of the lower end of the feeding plate. The sliders are slidably connected to the screening box. Each slider is connected to a positioning plate. The positioning plate is located outside the screening box and cooperates with the screening box to position the slider.

[0008] Preferably, the upper end and both sides of the conveyor plate are provided with baffles.

[0009] Preferably, the positioning plate is provided with a push handle.

[0010] Preferably, the first guide plate is provided with a discharge channel.

[0011] Preferably, a second guide plate is connected below the first guide plate.

[0012] Preferably, the vibration frame includes several support columns and several pressure springs, one end of each of the pressure springs is connected to the screening box, and the free end of each of the pressure springs is connected to the corresponding support column.

[0013] Preferably, the discharge assembly includes a discharge trough and a discharge pipe, wherein the discharge trough is connected to the screening box and the discharge pipe is connected to the discharge trough.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The conveying assembly has an adjustable tilt angle. By adjusting the tilt of the conveying assembly, the amount of ore output to the input end of the lower-level screen plate can be controlled, thereby improving the ore screening efficiency. 2. Through the cooperation of the first guide plate and the conveying assembly, the ore screened by the upper-level screen plate can be guided to the input end of the lower-level screen plate, effectively preventing the ore screened by the upper-level screen plate from falling directly into the output end of the lower-level screen plate, shortening the residence time of the ore on the screen plate, and improving the ore screening quality. 3. The discharge assembly can make the ore screened by each level of screen plate face the same direction, which is convenient for ore collection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an ore screening device according to the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of an ore screening device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the sieve plate, the first guide plate, and the conveying assembly of this utility model;

[0019] In the diagram, 1. Screening box; 2. Vibrating frame; 3. Support column; 4. Pressure spring; 5. Screen plate; 6. First guide plate; 7. Conveying assembly; 8. Conveying plate; 9. Rotating shaft; 10. Slider; 11. Positioning plate; 12. Baffle; 13. Push handle; 14. Through groove; 15. Feed hopper; 16. Discharge assembly; 17. Discharge chute; 18. Discharge pipe; 19. Second guide plate. Detailed Implementation

[0020] To better understand the technical content of this utility model, specific embodiments are provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0021] Example

[0022] See Figures 1 to 3 This utility model provides an ore screening device, including a screening box 1, a vibrating frame 2, several screen plates 5, several first guide plates 6, and several conveying components 7 for adjusting the ore output. The screening box 1 is mounted on the vibrating frame 2. A vibration motor (not shown) is installed at the bottom of the screening box 1. Through the cooperation of the vibration motor (not shown) and the vibrating frame 2, the screening box 1 vibrates to screen the ore. Several screen plates 5 are installed in an inclined manner from top to bottom inside the screening box 1. Corresponding first guide plates 6 are inclinedly arranged below each of the several screen plates 5. The first guide plates 6 convey the ore screened by the screen plates 5 to the conveying components 7. The first guide plates 6 are connected to the screening box 1. The upper ends of the several conveying components 7 are rotatably connected to the screening box 1, and the lower ends of the several conveying components 7 are slidably connected to the screening box 1. The amount of ore input to the lower-level screen plate 5 is controlled by adjusting the tilt angle of the conveying component 7. The conveying component 7 is located below the corresponding first guide plate 6. The bottom first guide plate 6 is not equipped with a conveying component 7. The conveying component 7 can input the screened ore from the input end of the lower-level screen plate 5, avoiding the ore screened by the upper screen plate 5 from falling directly into the output end of the lower-level screen plate 5, thus prolonging the residence time of the ore on the screen plate 5 and improving the ore screening effect. The screen box 1 is equipped with a feeding hopper 15 above it to input ore into the top screen plate 5. The screen box 1 is connected to several discharge components 16. The discharge components 16 face the same direction to facilitate the collection of ore and are used to output the ore screened by the corresponding screen plate 5. To facilitate the transportation of the output ore, a corresponding conveyor belt can be set below the discharge component 16 to avoid the accumulation of ore below it.

[0023] The conveying assembly 7 includes a conveying plate 8 and a rotating shaft 9. The upper end and both sides of the conveying plate 8 are respectively provided with baffles 12 to limit the ore on the conveying plate and prevent the ore from contacting the inner wall of the screening box 1. This facilitates adjustment of the tilt angle of the conveying assembly 7 to control the amount of ore input to the lower-level screen plate 5. The upper end of the conveying plate 8 is connected to the rotating shaft 9, and both ends of the rotating shaft 9 are rotatably connected to the screening box 1. Sliding blocks 10 are connected to both sides of the lower end of the conveying plate 8, and the sliding blocks 10 slide against the screening box 1. The sliding block 10 is connected to a positioning plate 11, which is located on the outside of the screening box 1. The positioning plate 11 cooperates with the screening box 1 to position the sliding block 10. The positioning plate 11 is provided with a push handle 13. By pushing the positioning plate 11 with the handle, the angle of the conveyor plate 8 can be adjusted. After the conveyor plate 8 rotates to the expected position, the positioning plate 11 is fixed to the screening box 1 with bolts. The screening box 1 is provided with several positioning holes (not shown).

[0024] The first guide plate 6 is provided with a discharge channel 14, and a second guide plate 19 is connected below the first guide plate 6. The second guide plate 19 guides the ore output from the discharge channel 14 to the lower screen plate 5.

[0025] The vibration frame 2 includes several support columns 3 and several pressure springs 4. One end of each of the pressure springs 4 is connected to the screening box 1, and the free end of each of the pressure springs 4 is connected to the corresponding support column 3.

[0026] The discharge assembly 16 includes a discharge trough 17 and a discharge pipe 18. The discharge trough 17 is connected to the screening box 1. The output end of each screen plate 5 is connected to a corresponding discharge trough 17. The bottom of the discharge trough 17 is inclined. The ore collected in the discharge trough 17 is gathered to the discharge pipe 18 for output. The discharge pipe 18 is connected to the discharge trough 17.

[0027] When in use, the vibration motor starts and, in conjunction with the vibration frame 2, causes the screening box 1 to vibrate. The ore in the feed hopper 15 falls into the input end of the top screen plate 5. The ore is screened by the top screen plate 5. Larger ore is output through the output end of the top screen plate 5 to the discharge chute 17, while smaller ore falls onto the first guide plate 6 below the top screen plate 5. The ore falls through the discharge channel 14 of the first guide plate 6 onto the lower conveyor plate 8. The tilt angle of the conveyor plate 8 is adjusted by the push handle 13 to control the input amount of ore to the lower screen plate 5. The ore falls through the output end of the conveyor plate 8 into the input end of the lower screen plate 5, where the lower screen plate 5 screens the ore again.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ore screening device characterised in that: Including screening box, vibrating frame, several sieve plates, several first guide plates and several feeding assemblies for adjusting the output of ore, the screening box is installed on the vibrating frame, the bottom of the screening box is provided with a vibrating motor, several sieve plates are installed in the screening box in an inclined manner from top to bottom, the lower side of each sieve plate is provided with a corresponding first guide plate, the first guide plate is connected with the screening box, the upper end of each feeding assembly is rotatably connected with the screening box, the lower end of each feeding assembly is slidably connected with the screening box, the feeding assembly is arranged below the corresponding first guide plate, the upper side of the screening box is provided with a feeding hopper, the screening box is connected with several discharge assemblies for outputting the ore screened by the sieve plate.

2. An ore screening device as claimed in claim 1, characterised in that: The feeding assembly comprises a feeding plate and a rotating shaft, the upper end of the feeding plate is connected with the rotating shaft, the two ends of the rotating shaft are rotatably connected with the screening box, the lower end of the feeding plate is connected with a sliding block on each side, the sliding block is slidably connected with the screening box, the sliding block is connected with a positioning plate, the positioning plate is located outside the screening box, and the positioning plate is matched with the screening box to position the sliding block.

3. An ore screening device as claimed in claim 2, characterised in that: The upper end and both sides of the feeding plate are respectively provided with a baffle.

4. An ore screening device as claimed in claim 2, characterised in that: The positioning plate is provided with a push handle.

5. An ore screening device as claimed in claim 1, characterized in that: The first guide plate is provided with a discharge slot.

6. An ore screening device as claimed in claim 4, characterised in that: The lower side of the first guide plate is connected with a second guide plate.

7. An ore screening device as claimed in claim 1, characterized in that: The vibrating frame comprises several support columns and several pressure springs, one end of each pressure spring is connected with the screening box, and the free end of each pressure spring is connected with a corresponding support column.

8. An ore screening device as claimed in claim 1, characterized in that: The discharge assembly comprises a discharge slot and a discharge pipe, the discharge slot is connected with the screening box, and the discharge pipe is connected with the discharge slot.

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