Wear-resistant device of sieve bend
By setting a feeding mechanism, a slow-feeding roller and soft rubber wool on the curved screen plate, the problem of easy wear of the traditional curved screen is solved and the wear resistance of the equipment is improved.
Patent Information
- Application Number
- CN202422548343.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-22
AI Technical Summary
During the use of traditional curved screens, larger coal particles fall at a faster speed, causing serious wear on the bottom area of the curved screen plate.
A feeding mechanism is set on the curved screen plate, including a material box, a rotating shaft and spiral blades to evenly transport coal particles, and a slow-down roller is installed in the middle of the curved screen plate and soft rubber hair is set on the side of the slow-down roller to slow down the falling speed of particles and reduce wear.
By evenly conveying coal particles and slowing down the falling speed, the wear on the bottom of the curved screen plate is significantly reduced, thus extending the service life of the equipment.
Smart Images
Figure CN223299623U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of arc screen devices, in particular to a wear-resistant device for an arc screen. Background Art
[0002] Curved screens are commonly used in coal mines for screening coal. They possess high strength, rigidity, and load-bearing capacity, and are primarily used for pre-dewatering and de-mediation operations. While their structure typically consists of a frame and a curved screen plate secured to it, traditional curved screens have several significant drawbacks. A major issue is the rapid velocity of larger coal particles, particularly at the bottom of the curved screen plate, which results in significant wear in this area. Utility Model Content
[0003] (1) Technical issues
[0004] The utility model provides a wear-resistant device for a curved screen, aiming to solve the problem that a traditional curved screen is easy to wear.
[0005] (2) Technical content
[0006] In order to solve the above technical problems, the technical solution of the utility model is: a wear-resistant device for an arc screen, comprising a frame, a curved screen plate is fixedly provided on the frame, a feeding mechanism is fixedly provided on the upper end of the curved screen plate, the feeding mechanism comprises a material box, a rotating shaft is provided inside the material box, a spiral blade is fixedly provided on the rotating shaft, a motor for driving the rotating shaft to rotate is fixedly provided on the outside of the material box, a number of equally spaced unloading holes are provided at the bottom of the material box along its length direction, a slow-down roller is provided for rotation in the middle of the curved screen plate, and a motor 2 for driving the slow-down roller to rotate is fixedly provided on the outside of the curved screen plate.
[0007] Furthermore, the bottom of the material box is semicircular and the discharge hole is located at the lowest point of the semicircular material box.
[0008] Furthermore, a plurality of evenly distributed soft rubber hairs are fixedly provided on the side of the slow-down roller.
[0009] Furthermore, the soft rubber hair is made of rubber material.
[0010] Furthermore, the arc-shaped sieve plate is provided with a plurality of evenly distributed filtering holes.
[0011] Furthermore, a feed port is provided at the upper end of the material box and the feed port is arranged close to one end of the motor.
[0012] (3) Technical effects
[0013] Compared with the prior art, the advantages of the present invention are: a feeding mechanism is fixedly provided on the upper end of the arc-shaped screen plate, comprising a material box and an internal rotating shaft and spiral blades to ensure that the coal particles enter the screening area evenly and reduce the speed impact of the particles when falling; a material-slowing roller is provided in the middle of the arc-shaped screen plate to slow down the falling speed of the particles, reduce the impact force on the bottom of the arc-shaped screen plate, and reduce wear; soft rubber hairs are fixed on the side of the material-slowing roller, which are evenly distributed on the surface and can effectively reduce the wear of the screen plate surface and the impact of the particles. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a three-dimensional structure diagram of the wear-resistant device of a curved screen in this utility model. Figure 1 .
[0015] Figure 2 This is a three-dimensional structure diagram of the wear-resistant device of a curved screen in this utility model. Figure 2 .
[0016] Figure 3 This is a three-dimensional structure diagram of the wear-resistant device of a curved screen in this utility model. Figure 3 .
[0017] Figure 4 This is a schematic diagram of the main structure of a wear-resistant device of a curved screen of the utility model.
[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of a wear-resistant device of a curved screen of the utility model.
[0019] As shown in the figure: 1. Frame; 2. Arc-shaped screen plate; 3. Feeding mechanism; 4. Material box; 5. Rotating shaft; 6. Spiral blade; 7. Motor; 8. Discharge hole; 9. Slow-down roller; 10. Motor 2; 11. Soft rubber wool; 12. Filter hole; 13. Feed port. DETAILED DESCRIPTION
[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they cannot be understood as limitations on the present invention.
[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "provided with," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0022] The present invention will be described in further detail below with reference to the accompanying drawings.
[0023] Combined with attachment Figure 1 To the attached Figure 5 , a wear-resistant device for an arc screen, comprising a frame 1, a curved sieve plate 2 is fixedly provided on the frame 1, a plurality of evenly distributed filter holes 12 are provided on the curved sieve plate 2, a feeding mechanism 3 is fixedly provided on the upper end of the curved sieve plate 2, the feeding mechanism 3 comprises a material box 4, a rotating shaft 5 is provided inside the material box 4, a spiral blade 6 is fixed on the rotating shaft 5, a motor 7 for driving the rotating shaft 5 to rotate is fixedly provided on the outside of the material box 4, a plurality of equally distributed discharge holes 8 are provided at the bottom of the material box 4 along its length direction, a feeding port 13 is provided on the upper end of the material box 4 and the feeding port 13 is arranged near one end of the motor 7, a slow-down roller 9 is provided for rotation in the middle of the curved sieve plate 2, and a motor 10 for driving the slow-down roller 9 to rotate is fixedly provided on the outside of the curved sieve plate 2.
[0024] The bottom of the material box 4 is semicircular and the discharge hole 8 is located at the lowest point of the semicircular material box.
[0025] A plurality of evenly distributed soft rubber hairs 11 are fixedly provided on the side of the slow-down roller 9 , and the soft rubber hairs 11 are made of rubber material.
[0026] Specific implementation method of the present utility model: Before use, the present utility model is first connected to an external power supply, and a mixture of coal powder and water produced during coal washing is poured into the feed port 13, and the motor 7 is started to drive the rotating shaft 5 and the spiral blade 6 to rotate, thereby transporting the material to each discharge hole 8. The material falls evenly from each discharge hole 8 onto the arc-shaped screen plate 2, and the material slides on the arc-shaped screen plate 2. The water passes through the filter hole 12 and falls into the water collection box (not shown) below the arc-shaped screen plate. The clean coal slides down the arc-shaped screen plate 2 to the clean coal collection box (not shown) at the bottom. During the descent of the coal particles, start the motor 2 10 to drive the slow-down roller 9 to rotate. Under the action of the slow-down roller 9 and the soft rubber wool 11, the large particles of material slowly slide down to avoid wear on the bottom screen plate.
[0027] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.
Claims
1. A wear-resistant device for a curved screen, comprising a frame (1), on which a curved screen plate (2) is fixed, characterized in that: A feeding mechanism (3) is fixedly provided at the upper end of the arc-shaped screen plate (2), and the feeding mechanism (3) includes a material box (4), a rotating shaft (5) is rotatably provided inside the material box (4), a spiral blade (6) is fixedly provided on the rotating shaft (5), a motor (7) for driving the rotating shaft (5) to rotate is fixedly provided on the outer side of the material box (4), a plurality of discharge holes (8) distributed at equal distances are provided at the bottom of the material box (4) along its length direction, a slow-down roller (9) is rotatably provided in the middle of the arc-shaped screen plate (2), and a second motor (10) for driving the slow-down roller (9) to rotate is fixedly provided on the outer side of the arc-shaped screen plate (2).
2. The wear-resistant device of the curved screen according to claim 1, characterized in that: The bottom of the material box (4) is semicircular and the discharge hole (8) is located at the lowest point of the semicircular material box.
3. The wear-resistant device of the curved screen according to claim 1, characterized in that: A plurality of evenly distributed soft rubber hairs (11) are fixedly provided on the side of the slow-feed roller (9).
4. The wear-resistant device of the curved screen according to claim 3, characterized in that: The soft rubber hair (11) is made of rubber material.
5. The wear-resistant device of the curved screen according to claim 1, characterized in that: The arc-shaped sieve plate (2) is provided with a plurality of evenly distributed filtering holes (12).
6. The wear-resistant device of the curved screen according to claim 1, characterized in that: The upper end of the material box (4) is provided with a feed port (13), and the feed port (13) is arranged close to one end of the motor (7).