A new type of stainless steel sieve plate
By designing a stainless steel screen plate with serrated screen bars and a back bar structure, the problem of screen surface clogging was solved, screening efficiency and area were improved, and high-efficiency screening was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUIZHOU PANJIANG REFINED COAL
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-19
Smart Images

Figure CN224372068U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mining equipment, specifically relating to a new type of stainless steel screen plate suitable for various vibrating screens and fixed screens. Background Technology
[0002] Currently, the mining industry has a wide demand for material screening, and vibrating screens, fixed screens, and other screening equipment are widely used in production sites. As a key process component of screening equipment, the performance of the screen plate directly determines the overall performance parameters of the screening equipment. Stainless steel screen plates are widely used due to their excellent corrosion resistance and wear resistance.
[0003] Currently, the stainless steel screen plates used in conjunction with vibrating screens and flat fixed screens mainly have flat screen surfaces. In actual production processes, the screen surface is prone to localized blockage due to the slow movement of large pieces of material, resulting in a reduction in the actual screening area and a deterioration in screening efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a new type of stainless steel screen plate that reduces the probability of screen blockage while increasing the effective screening area and improving its screening capacity.
[0005] The technical solution adopted by this utility model is a new type of stainless steel screen plate, including a frame and a number of screen bars arranged in parallel intervals within the frame. The screen bars are serrated and bent at the same angle. The bending angle of the screen bars is 30-45°. A back bar is provided between each peak and valley formed by the bending of the screen bars. The back bar is located on the back of the screen bar and is perpendicular to the screen bar.
[0006] Furthermore, both the screen bars and the back bars are made of stainless steel, and the diameter of the back bars is the same as that of the screen bars.
[0007] Furthermore, the distance between each ridge and valley formed by the bending of the back strip and the screen strip is equal.
[0008] Furthermore, the aforementioned frame is made of stainless steel, with both ends of the screen bar welded to the inner top of the frame, and the grooves formed by the bending of the screen bar are on the same horizontal line as the two ends of the screen bar.
[0009] Furthermore, the outer edge of the aforementioned frame is wrapped with polyurethane material to form an mounting plate, and the mounting plate is provided with an R-shaped mounting slot.
[0010] Compared with the prior art, the beneficial effect of this utility model is that by changing the flat screen surface into an "M" shape, the screening area is increased, the probability of screen gap blockage is reduced, and the screening capacity of the screen plate is effectively improved. Attached Figure Description
[0011] Figure 1 This is the front view of the stainless steel sieve plate.
[0012] Figure 2 This is a top view of a stainless steel sieve plate.
[0013] Figure 3 This is a left view of a stainless steel sieve plate. Detailed Implementation
[0014] The present invention will be further explained below with reference to the accompanying drawings to enable those skilled in the art to better understand it.
[0015] Example 1
[0016] like Figure 1-3 As shown, a new type of stainless steel screen plate includes a frame 1 and a plurality of screen bars 2 arranged parallel to each other within the frame 1. The plurality of screen bars 2 are bent along a direction perpendicular to the screen gap, with a bending angle of 30-45°, so that the screen surface is serrated and the bending angle is consistent. The bending angle of different screen plates can be flexibly selected according to the size of the screen bars and the screen gap. Under the condition of not damaging the screen bars, the larger value in the above range is preferred. By bending the straight-seam stainless steel screen surface along a direction perpendicular to the screen gap, the screen surface becomes "M" shaped, increasing the screen surface area in contact with the material, thereby improving the screening capacity of the screen plate.
[0017] Each ridge and valley formed by the bending of the screen bar 2 is provided with a back bar 3. The back bar 3 is located on the back of the screen bar 2 and is perpendicular to the screen bar 2. It is used to support the screen bar 2, enhance the structural strength of the screen surface, and prevent deformation. Both the screen bar 2 and the back bar 3 are made of stainless steel, and the diameter of the back bar 3 is the same as that of the screen bar 2.
[0018] To improve the support effect of the back bar 3, the distance between each ridge and valley formed by the bending of the back bar 3 and the screen bar 2 is equal.
[0019] In this process, the material moves forward along the valleys formed by the bends, with the direction of material movement perpendicular to the screen openings. This utilizes the cutting action of the screen bars to increase the probability of fine particles passing through the screen, while effectively preventing flexible materials from getting caught on the screen bars and clogging the screen openings. Due to the restriction of the ridges formed by the bends, the resistance to the material traversing adjacent valleys increases, and the forward inertia of subsequent material will propel the material in front forward, effectively preventing material accumulation and blockage of the screen plates.
[0020] The frame 1 is made of stainless steel. The two ends of the screen bar 2 are welded to the inner top of the frame 1. The groove formed by the bending of the screen bar 2 is on the same horizontal line as the two ends of the screen bar 2. The stainless steel frame 1 at the inlet and outlet of the screen surface is "rectangular + sawtooth". The angle of the sawtooth is consistent with the bending angle of the screen bar 2. The stainless steel frame perpendicular to the material feeding direction is rectangular. The frame 1 is welded into a whole to become the main load-bearing frame of the screen plate.
[0021] The frame 1 is surrounded by polyurethane material and the mounting plate 4 is set. The mounting plate 4 is provided with an R-shaped mounting slot 5 for easy and quick assembly and disassembly.
[0022] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from its design spirit and principles should fall within the protection scope defined by the claims of the present invention.
Claims
1. A new type of stainless steel screen plate, comprising a frame (1) and a plurality of screen bars (2) arranged in parallel and spaced apart in the frame (1), characterized in that, The plurality of sieve bars (2) are serrated and bent at the same angle. The bending angle of the sieve bars (2) is 30-45°. A back bar (3) is provided between each peak and valley formed by the bending of the sieve bars (2). The back bar (3) is located on the back of the sieve bars (2) and is perpendicular to the sieve bars (2).
2. A novel stainless steel screen plate as claimed in claim 1, wherein, Both the screen bar (2) and the back bar (3) are made of stainless steel, and the diameter of the back bar (3) is the same as that of the screen bar (2).
3. A novel stainless steel screen plate as claimed in claim 1, wherein, The distance between each ridge and valley formed by the bending of the back strip (3) and the sieve strip (2) is equal.
4. A novel stainless steel screen plate as claimed in claim 1, wherein, The frame (1) is made of stainless steel. The two ends of the screen bar (2) are welded to the inner side of the top of the frame (1). The groove formed by the bending of the screen bar (2) is on the same horizontal line as the two ends of the screen bar (2).
5. A novel stainless steel screen plate as claimed in claim 1, wherein, The frame (1) is surrounded by a polyurethane material and a mounting plate (4) is provided. The mounting plate (4) is provided with an R-shaped mounting slot (5).