Screening structure for mine beneficiation
By designing a multi-layer screening structure and dust treatment components, the problems of poor screening effect and incomplete dust treatment in existing ore screening devices have been solved, realizing rapid multi-stage screening of ore and efficient dust cleaning.
Patent Information
- Application Number
- CN202422736469.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing ore screening devices generally have only a single-layer screen structure, resulting in poor screening effect, limited screening levels, and dust and impurities adhering to the ore surface, requiring subsequent cleaning treatment.
A multi-layer screening structure is designed, including a first screening component, a second screening structure, and a third screening structure, with the screen mesh diameter gradually decreasing, and equipped with a dust treatment component that uses an exhaust fan and atomizing nozzles to treat the dust.
It enables rapid multi-stage screening of ores, improves screening efficiency, reduces dust treatment costs, and enhances the cleanliness and speed of ore surfaces.
Smart Images
Figure CN223491405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ore screening structures, and in particular to a screening structure for mineral processing. Background Technology
[0002] Different types of mines can extract iron ore, copper ore, tin ore, silver ore, gold ore, etc. after mining. Therefore, the ore needs to be graded according to particle size to facilitate pricing when selling it later. Screening devices are needed to screen the ore during mineral processing.
[0003] However, existing ore screening machines generally only have a single-layer screen structure, resulting in poor screening effect, fewer grades of ore being screened, and dust and impurities adhering to the surface of the ore, requiring subsequent cleaning treatment.
[0004] Therefore, in order to address the problem of poor ore quality and limited screening levels in the above-mentioned mineral processing work, a screening structure for mineral processing can be designed. Utility Model Content
[0005] In order to overcome the problem of poor quality and limited screening levels of ore screened in mineral processing.
[0006] The technical solution of this utility model is as follows: a screening structure for mineral processing, including a screening box, a feeding port, a first screening component, a second screening structure, a third screening structure, an ash discharge window, an exhaust fan, and a dust treatment component; the feeding port is fixedly connected to the upper end of the screening box; the first screening component, the second screening structure, and the third screening structure for dividing ore into three grades are installed sequentially from top to bottom on the inner side of the screening box; the first screening component includes an electric shaft, a screen, a limiting groove, and a discharge channel; the screen is fixedly connected to the outer side of the electric shaft; a limiting groove fixed to the inner wall of the screening box is provided at the rear end of the screen. The screen has a discharge channel fixed to the front of the screening box; a dust discharge window is opened at the left end of the screening box; an exhaust fan is installed at the right end of the screening box; a dust treatment component for dust suppression of the exhaust air is fixedly connected to the left end of the screening box; the dust treatment component includes an isolation channel, a water tank and an atomizing nozzle; a water tank is placed outside the isolation channel; an atomizing nozzle is installed at the top of the inner side of the isolation channel; the atomizing nozzle and the water tank are connected by a conveying pipe; the dust treatment component and the screening box are connected by the dust discharge window; a waste slag collection chamber for collecting ore waste slag is provided at the lower end of the inner side of the screening box.
[0007] Preferably, the first step is to feed the ore mined from the mining area into the feeding port at the top of the screening box and convey it downwards in a quantitative manner;
[0008] In the second step, the ore is quickly separated into multiple grades of ore by the first screening component, the second screening structure and the third screening structure, which are shaken back and forth. The ore is then output to the front end. The impurities contained in the ore pass through the first screening component, the second screening structure and the third screening structure and are collected in the waste collection chamber at the bottom.
[0009] The third step is to shake off the dust from the surface of the ore during the ore screening process and fill the screening box. At this time, multiple exhaust fans are turned on to blow the dust through the ash discharge window into the dust treatment component, which can more effectively concentrate the dust and improve the cleanliness of the ore surface.
[0010] The fourth step involves the dust treatment component using atomizing nozzles to draw water from the water tank to generate water mist. This water mist captures and condenses dust particles in the air, reducing suspended particulate matter and accelerating the dust's fall, thus speeding up the cleaning process and reducing cleaning costs.
[0011] Preferably, the front ends of the first screening component, the second screening structure and the third screening structure are all provided with limiting seats fixed to the outside of the screening box; a collection box is slidably limited at the front end of the limiting seat.
[0012] Preferably, a rotating cylinder is installed inside the feeding port channel; an annularly distributed material distribution groove is opened on the outer surface of the feeding port; and a drive motor is installed at the rear end of the rotating cylinder to drive the rotating cylinder to rotate slowly.
[0013] Preferably, the first screening component, the second screening structure, and the third screening structure have the same internal structure; the mesh openings of the first screening component, the second screening structure, and the third screening structure decrease in size from top to bottom.
[0014] Preferably, the exhaust fans are provided with matching ash removal windows facing each other; there are three exhaust fans; the exhaust fans are located at the upper right end of the first screening component, the second screening structure and the third screening structure respectively.
[0015] As a preferred option, the limiting groove adopts a "gate" shape; buffer pads are installed on the side of the upper and lower plates of the limiting groove closest to the screen.
[0016] Preferably, the dust handling assembly also includes a guide base; the lower end of the isolation channel is fixedly connected to the guide base to guide the dirty water forward and discharge it.
[0017] The beneficial effects of this utility model are:
[0018] Compared to traditional single-layer screen structures, this invention, by incorporating a first, second, and third screening components that continuously oscillate back and forth within the screening box, with varying hole diameters, can quickly separate ores into multiple grades for separate output. This results in fast and effective ore screening. Furthermore, an exhaust fan blows dust from the ore surface through a ash discharge window into a dust treatment component, enabling more efficient centralized dust processing, improving ore surface cleanliness, precisely capturing and condensing airborne dust particles, reducing suspended particulate matter, accelerating dust settling, and ultimately speeding up ore cleaning while lowering cleaning costs. Attached Figure Description
[0019] Figure 1 The diagram shown is a three-dimensional structural schematic of the screening structure of this utility model;
[0020] Figure 2 The diagram shown is another three-dimensional structural schematic of the screening structure of this utility model;
[0021] Figure 3 The diagram shown is a cross-sectional view of the screening structure of this utility model.
[0022] Figure 4 The diagram shown is another cross-sectional view of the screening structure of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Screening box; 2. Feeding port; 301. Electric shaft; 302. Screen; 303. Limiting groove; 304. Discharge channel; 4. Second screening structure; 5. Third screening structure; 6. Ash discharge window; 7. Exhaust fan; 801. Isolation channel; 802. Water tank; 803. Atomizing nozzle; 804. Guide base; 9. Waste collection chamber; 10. Limiting seat; 11. Collection box; 12. Rotating cylinder; 13. Distributing trough; 14. Drive motor. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Please see Figure 1-4This utility model provides an embodiment of a screening structure for mineral processing, including a screening box 1, a feeding port 2, a first screening component, a second screening structure 4, a third screening structure 5, an ash discharge window 6, an exhaust fan 7, and a dust treatment component; the feeding port 2 is fixedly connected to the upper end of the screening box 1; the first screening component 3, the second screening structure 4, and the third screening structure 5 for dividing ore into three grades are installed sequentially from top to bottom on the inner side of the screening box 1; the first screening component 3 includes an electric shaft 301, a screen 302, and a limiting groove. 303 and discharge channel 304; a screen 302 is fixedly connected to the outside of the electric shaft 301; a limiting groove 303 fixed to the inner wall of the screening box 1 is provided at the rear end of the screen 302; a discharge channel 304 fixed to the front end of the screening box 1 is provided at the front end of the screen 302; a dust discharge window 6 is opened at the left end of the screening box 1; an exhaust fan 7 is installed at the right end of the screening box 1; a dust treatment component for dust suppression treatment of the exhaust air is fixedly connected to the left end of the screening box 1; the dust treatment component includes an isolation channel 801, a water tank 802 and an atomizing nozzle 8 03; A water tank 802 is placed outside the isolation channel 801; an atomizing nozzle 803 is installed at the top of the inner side of the isolation channel 801; the atomizing nozzle 803 and the water tank 802 are connected by a conveying pipe; the dust treatment component and the screening box 1 are connected by a dust discharge window 6; a waste collection chamber 9 for collecting ore waste is provided at the lower end of the inner side of the screening box 1; the front ends of the first screening component 3, the second screening structure 4 and the third screening structure 5 are all provided with limiting seats 10 fixed to the outside of the screening box 1; the front end of the limiting seat 10 has a limiting sliding collection... Box 11; the ore that has been screened falls into the corresponding collection box 11 at the front end. When enough ore has been accumulated, the staff can remove the collection box 11 full of ore from the limiting seat 10 and replace it with an empty collection box 11; the limiting groove 303 adopts a "door" shape; buffer pads are installed on the side of the upper and lower plates of the limiting groove 303 near the screen 302; the limiting groove 303 can limit the back and forth shaking amplitude of the first screening component, the second screening structure 4, and the third screening structure 5, and play a buffering and protection role when the screen 302 shakes.
[0026] Please see Figure 2 In this embodiment, a rotating cylinder 12 is installed inside the feeding port 2; a ring-shaped equidistant distribution groove 13 is opened on the outer surface of the feeding port 2; a drive motor 14 is installed at the rear end of the rotating cylinder 12 to drive the rotating cylinder 12 to rotate slowly; the drive motor 14 drives the rotating cylinder 12 to rotate slowly and conveys the batch of ore downwards through the distribution groove 13 in a quantitative manner.
[0027] Please see Figure 3 In this embodiment, the internal structures of the first screening component 3, the second screening structure 4, and the third screening structure 5 are the same; the mesh openings of the first screening component 3, the second screening structure 4, and the third screening structure 5 decrease in size from top to bottom.
[0028] Please see Figure 4 In this embodiment, the exhaust fan 7 is provided with matching dust discharge windows 6 facing each other; there are three exhaust fans 7; the exhaust fans 7 are located at the upper right end of the first screening component 3, the second screening structure 4 and the third screening structure 5 respectively; the dust treatment component also includes a guide base 804; the lower end of the isolation channel 801 is fixedly connected to the guide base 804 for guiding the dirty water forward and discharging it; after the water mist carries the dust down quickly, the guide base 804 guides the concentrated dirty water forward and discharging it.
[0029] When working, the first step is to put the ore mined from the mining area into the feeding port 2 at the top of the screening box 1. The drive motor 14 drives the rotating drum 12 to rotate slowly, and the batch of ore is quantitatively conveyed downward through the distribution trough 13.
[0030] The second step involves simultaneously activating the electric shafts 301 of the first screening component 3, the second screening structure 4, and the third screening structure 5. The electric shafts 301 drive the screen 302 to rock back and forth. The limiting groove 303 at the rear end of the screen 302 can limit the rocking amplitude of the first screening component, the second screening structure 4, and the third screening structure 5, and provide buffer protection when the screen 302 is rocking.
[0031] The ore is quickly separated into multiple grades of ore by the first screening component, the second screening structure 4, and the third screening structure 5, which are shaken back and forth. The discharge channel 304 outputs the ore to the corresponding collection box 11 at the front end. When enough ore has been accumulated, the staff can remove the collection box 11 filled with ore from the limit seat 10 and replace it with an empty collection box 11.
[0032] Impurities contained in the ore pass through the first screening component, the second screening structure 4, and the third screening structure 5 and are collected in the waste collection chamber 9 at the bottom.
[0033] Third, during the ore screening process, the dust on the surface of the ore is shaken off and spreads in the screening box 1. At this time, multiple sets of exhaust fans 7 are started to blow the dust through the ash discharge window 6 into the dust treatment component, which can more effectively concentrate the dust and improve the cleanliness of the ore surface.
[0034] In the fourth step, the dust treatment component uses the atomizing nozzle 803 to draw water from the water tank 802 to generate water mist. The water mist captures and condenses dust particles in the air in the isolation channel 801, reducing the suspended particulate matter in the air, accelerating the dust falling speed, speeding up the cleaning of the ore, and reducing the cleaning cost.
[0035] Through the above steps, by setting up a first screening component, a second screening structure 4, and a third screening structure 5 that continuously oscillate back and forth in the screening box 1, with different hole diameters, the ore can be quickly divided into multiple grades of ore types and output separately. The ore screening effect is good. The dust shaken off the surface of the ore by the exhaust fan 7 is blown into the dust treatment component through the ash discharge window 6, which can more effectively concentrate the dust, improve the cleanliness of the ore surface, accurately capture and condense dust particles in the air, reduce suspended particulate matter in the air, accelerate the dust falling speed, speed up the cleaning of the ore, and reduce the cleaning cost.
Claims
1. A screening structure for mineral processing, comprising a screening box (1); characterized in that: It also includes a feeding port (2), a first screening component, a second screening structure (4), a third screening structure (5), an ash discharge window (6), an exhaust fan (7), and a dust treatment component; the feeding port (2) is fixedly connected to the upper end of the screening box (1); the first screening component (3), the second screening structure (4), and the third screening structure (5) for dividing the ore into three grades are installed sequentially from top to bottom on the inner side of the screening box (1); the first screening component (3) includes an electric shaft (301), a screen (302), a limiting groove (303), and a discharge channel (304); the screen (302) is fixedly connected to the outer side of the electric shaft (301); the limiting groove (303) fixed to the inner wall of the screening box (1) is provided at the rear end of the screen (302); the screen (302) is fixed to the screen at the front end. The discharge channel (304) at the front end of the screening box (1); the ash discharge window (6) is opened at the left end of the screening box (1); the exhaust fan (7) is installed at the right end of the screening box (1); a dust treatment component for dust suppression treatment of the exhaust air is fixedly connected to the left end of the screening box (1); the dust treatment component includes an isolation channel (801), a water tank (802) and an atomizing nozzle (803); the water tank (802) is placed outside the isolation channel (801); the atomizing nozzle (803) is installed at the top of the inner side of the isolation channel (801); the atomizing nozzle (803) and the water tank (802) are connected by a conveying pipe; the dust treatment component is connected to the screening box (1) through the ash discharge window (6); a waste collection chamber (9) for collecting ore waste is provided at the lower end of the inner side of the screening box (1).
2. The screening structure for mineral processing according to claim 1, characterized in that: The first screening component (3), the second screening structure (4) and the third screening structure (5) are all provided with a limiting seat (10) fixed to the outside of the screening box (1); the front end of the limiting seat (10) is limited to slide a collection box (11).
3. The screening structure for mineral processing according to claim 1, characterized in that: A rotating cylinder (12) is installed inside the feeding port (2) and the feeding channel; a ring-shaped equidistant distribution groove (13) is opened on the outer surface of the feeding port (2); a drive motor (14) is installed at the rear end of the rotating cylinder (12) to drive the rotating cylinder (12) to rotate slowly.
4. The screening structure for mineral processing according to claim 1, characterized in that: The first screening component (3), the second screening structure (4), and the third screening structure (5) have the same internal structure; the mesh openings of the first screening component (3), the second screening structure (4), and the third screening structure (5) decrease in size from top to bottom.
5. The screening structure for mineral processing according to claim 1, characterized in that: The exhaust fan (7) is provided with matching ash discharge windows (6) facing each other; there are three exhaust fans (7); the exhaust fans (7) are located at the upper right end of the first screening component (3), the second screening structure (4) and the third screening structure (5) respectively.
6. The screening structure for mineral processing according to claim 1, characterized in that: The limiting groove (303) adopts a "door" shape; buffer pads are installed on the side of the upper and lower plates of the limiting groove (303) near the screen (302).
7. The screening structure for mineral processing according to claim 1, characterized in that: The dust handling assembly also includes a guide base (804); the lower end of the isolation channel (801) is fixedly connected to the guide base (804) that guides the dirty water forward and discharges it.