Compound vibration type anti-blocking sieve plate
By setting up a reversing vibration-proof blocking structure on the screen plate, and using the relative displacement between the floating screen strip and the fixed screen strip, the problem of hole blocking in traditional screen plates when screening viscous materials is solved, achieving efficient screening and stable operation.
Patent Information
- Application Number
- CN202421009329.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-10
AI Technical Summary
When screening sticky materials, traditional strip screening plates are prone to blockage of screen holes due to sticky materials or coal slime sticking between screen strips, resulting in poor screening of materials, reducing the screening efficiency and processing capacity of the screening machine.
The composite vibration-proof screen plate is adopted. By setting a fixed frame and a floating frame on the screen plate, and using a rubber spring to generate composite vibration, the relative displacement between the floating screen strip and the fixed screen strip is generated, thereby effectively removing the material stuck to the screen strip.
It effectively solves the problem of hole blocking on screen plates, improves screening efficiency, reduces the demand for manual cleaning, reduces production costs, and improves the normality of production operations.
Smart Images
Figure CN222659210U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of vibrating screening machinery, and mainly relates to a double-vibrating anti-blocking screen plate which can prevent screen holes from being blocked when screening sticky materials. Background Art
[0002] In the dehydration and demediation operations in the metallurgical, mining and coal industries, linear screens are generally used with slotted screen plates. The structure of the traditional slotted screen plate is that the screen bars are directly fixed on the screen plate frame, so that the entire screen plate forms a rigid whole, and the gaps between adjacent screen bars serve as the screen holes for the material to pass through. The screening is completely completed by the vibrating screen frame driving the entire screen plate to vibrate slightly. When this type of screen plate is used for screening operations, it is very easy for the screen holes to be blocked due to sticky materials or sticky substances such as coal slime contained in the materials sticking between the screen bars. This makes it impossible for the material to pass through the screen, greatly reducing the screening efficiency and processing capacity of the screen machine. When the screen holes are seriously blocked, they need to be cleaned manually, which is not only labor-intensive and increases production costs, but also affects the normal progress of production operations. Summary of the invention
[0003] The utility model aims to provide a double-vibration anti-blocking screen plate, which is not easy to be blocked by materials in a normal production process, thereby improving the screening efficiency.
[0004] The utility model is realized by the following technical scheme, including a fixed frame, a floating frame and a connecting plate, and is characterized in that: the fixed frame has a square frame, the fixed screen bars are uniformly welded on the frame, and connecting plate mounting grooves for mounting the connecting plate are processed on the frames on both sides of the frame; the connecting plate mounting grooves are processed with frame rubber spring grooves;
[0005] The floating frame is composed of a tube beam and an end plate. The floating screen bars are uniformly welded to the screen bar support plate on the tube beam. The spacing of the floating screen bars is equal to the spacing of the fixed screen bars. The end plate is processed with connection holes corresponding to the bolt holes on the connection plate.
[0006] The thickness of the connecting plate is smaller than the width of the connecting plate installation slot on the frame, and the connecting plate is composed of connecting heads arranged in parallel. The number of the connecting heads is the same as the number of the tube beams on the floating frame. The connecting heads are processed with bolt holes corresponding to the end plates of the floating frame; a connecting plate rubber spring slot is arranged between every two connecting heads;
[0007] The floating frame is placed in the fixed frame, the connecting plate is placed in the connecting plate mounting groove on the fixed frame, and the floating frame and the connecting plate are fixed together by bolts; there is a movable gap between the connecting plate and the connecting plate mounting groove on the frame, the connecting plate rubber spring groove corresponds to the frame rubber spring groove, and when the rubber spring is installed in the rubber spring groove, the upper and lower gaps of the connecting plate are equal.
[0008] The floating screen bars and the fixed screen bars are arranged at intervals, and their upper surfaces are in the same plane.
[0009] The gap between the floating screen bars and the fixed screen bars is 0.5 to 3.5 mm.
[0010] The beneficial effect of the utility model is that the fixed screen bars and floating screen bars on the screen plate are arranged at intervals. When the vibrating screen is working, the whole screen plate not only relies on the screen frame to make a small vibration, but the floating frame of the screen plate generates its own secondary composite vibration under the action of the overall exciting force of the vibrating screen and the rubber spring. The floating screen bars produce relative displacement with the fixed screen bars along the material flow direction, so that the materials stuck on the screen bars fall off, which effectively solves the problem of blockage of the screen plate. The screen bar support plate on the pipe beam increases the distance between the screen bars and the pipe beam, which is beneficial to the screening of materials. It has the characteristics of simple structure, stable operation, high screening efficiency and no need for manual cleaning. It can be widely used in the dehydration and de-mediation operations of linear screens and high-frequency dehydration screens in industries such as metallurgy, mining and coal. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 It is a schematic diagram of a fixed frame structure;
[0013] Figure 3 It is a schematic diagram of a floating frame structure;
[0014] Figure 4 It is a schematic diagram of the connecting plate structure.
[0015] In the figure, 1 is a fixed frame, 2 is a floating frame, 3 is a bolt, 4 is a connecting plate, 5 is a rubber spring, 6 is a frame, 7 is a fixed screen bar, 8 is a frame rubber spring groove, 9 is a connecting plate mounting groove, 10 is a floating screen bar, 11 is a pipe beam, 12 is a screen bar support plate, 13 is an end plate, 14 is a connector, 15 is a bolt hole, and 16 is a connecting plate rubber spring groove. DETAILED DESCRIPTION
[0016] The specific implementation of the utility model is described below in conjunction with the accompanying drawings:
[0017] It includes a fixed frame 1, a floating frame 2 and a connecting plate 4. The fixed frame 1 has a square frame 6, fixed screen bars 7 are evenly welded on the frame 6, and connecting plate mounting grooves 9 are processed on the borders on both sides of the frame 6; frame rubber spring grooves 8 are processed in the connecting plate mounting grooves 9.
[0018] The floating frame 2 is composed of a tube beam 11 and an end plate 13. The floating screen bars 10 are evenly welded to the screen bar support plate 12 on the tube beam 11. The spacing of the floating screen bars 10 is equal to the spacing of the fixed screen bars 7. The end plate 13 is processed with connecting holes corresponding to the bolt holes 15 on the connecting plate 4.
[0019] The thickness of the connecting plate 4 is smaller than the width of the connecting plate mounting groove 9 on the frame 6, and is composed of 6 connecting heads 14 arranged in parallel. The number of the connecting heads 14 is the same as the number of the tubular beams 11 on the floating frame 2. The connecting heads 14 are processed with bolt holes 15 corresponding to the end plates 13 of the floating frame 2; a connecting plate rubber spring groove 16 is arranged between every two connecting heads 14.
[0020] The floating frame 2 is placed in the fixed frame 1, and the connecting plate 4 is placed in the connecting plate mounting groove 9 on the fixed frame 1. The floating frame 2 and the connecting plate 4 are fixed together by bolts; there is a movable gap between the connecting plate 4 and the connecting plate mounting groove 9 on the frame 6, and the connecting plate rubber spring groove 16 corresponds to the frame rubber spring groove 8. When the rubber spring 5 is installed in the rubber spring groove, the upper and lower gaps of the connecting plate 4 are equal.
[0021] The floating screen bar 10 is arranged at intervals with the fixed screen bar 7, and the upper surfaces are in the same plane. The gap between the floating screen bar 10 and the fixed screen bar 7 is 1 mm.
[0022] Since the length of the floating screen bar 10 is equal to that of the fixed screen bar 7, when installing the floating frame 2, it is necessary to first tilt one end of the floating frame 2 into the fixed frame 1, and make the floating screen bar 10 and the fixed screen bar 7 located in the same plane, then move the floating frame 2, align the two ends of the floating screen bar 10 with the fixed screen bar 7, and fix the floating frame 2 by the connecting plate 4.
Claims
1. A double-vibration anti-blocking screen plate, comprising a fixed frame (1), a floating frame (2) and a connecting plate (4), characterized in that: The fixed frame (1) has a square frame (6), the fixed screen bars (7) are uniformly welded to the frame (6), and the borders on both sides of the frame (6) are processed with connecting plate mounting grooves (9); the connecting plate mounting grooves (9) are processed with frame rubber spring grooves (8); The floating frame (2) is composed of a tube beam (11) and an end plate (13); the floating screen bars (10) are uniformly welded to a screen bar support plate (12) on the tube beam (11); the spacing of the floating screen bars (10) is equal to the spacing of the fixed screen bars (7); the end plate (13) is processed with connection holes corresponding to the bolt holes (15) on the connection plate (4); The thickness of the connecting plate (4) is smaller than the width of the connecting plate mounting groove (9) on the frame (6), and is composed of connecting heads (14) arranged in parallel. The number of the connecting heads (14) is the same as the number of the tubular beams (11) on the floating frame (2). The connecting heads (14) are processed with bolt holes (15) corresponding to the end plates (13) of the floating frame (2); a connecting plate rubber spring groove (16) is provided between every two connecting heads (14); The floating frame (2) is placed in the fixed frame (1), the connecting plate (4) is placed in the connecting plate installation groove (9) on the fixed frame (1), and the floating frame (2) and the connecting plate (4) are fixed together by bolts; there is a movable gap between the connecting plate (4) and the connecting plate installation groove (9) on the frame (6), the connecting plate rubber spring groove (16) corresponds to the frame rubber spring groove (8), and when the rubber spring (5) is installed in the rubber spring groove, the gaps above and below the connecting plate (4) are equal.
2. The double vibration anti-blocking screen plate according to claim 1 is characterized in that: The floating screen bars (10) and the fixed screen bars (7) are arranged at intervals, and their upper surfaces are in the same plane.
3. The double-vibration anti-blocking screen plate according to claim 1 is characterized in that: The gap between the floating screen bar (10) and the fixed screen bar (7) is 0.5 to 3.5 mm.