Sieve plate structure of dehydrator
By adopting a raised edge and notch structure design and an interlaced frame on the screen plate of the dewatering machine, the problem of cumbersome screen plate replacement in the existing technology is solved, achieving efficient and low-cost screen replacement and improved durability.
Patent Information
- Application Number
- CN202520619865.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-03-27
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-03
AI Technical Summary
When the existing screen plate structure of the dewatering machine is clogged or damaged, multiple screen frames need to be disassembled for replacement, resulting in long maintenance time, low efficiency, high cost and poor practicality.
The screen adopts a design with raised edges and notches on the outer and inner screen plates. Adjacent screen plates are fitted together by raised edges and notches, and the screen can be replaced by removing only one side of the screen plate. Combined with the cross-shaped frame and three-layer screen structure, the durability and strength are improved.
It enables efficient and convenient screen replacement, reduces maintenance time, improves production efficiency, and lowers material costs.
Smart Images
Figure CN223939919U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a dewaterer, in particular to a dewaterer sieve plate structure. BACKGROUND
[0002] The existing dewaterer sieve plate structure adopts a pressure mounting structure that one arc-shaped outer sieve plate presses another arc-shaped outer sieve plate, and forms a cylindrical dewaterer sieve plate structure, if the screen mesh is in serious blockage or is seriously damaged, which is not conducive to screening the screened material, the screen mesh needs to be replaced, then at least two adjacent screen frames need to be disassembled to replace the new screen mesh, which increases the disassembly time and is low in efficiency.
[0003] Through retrieval, in two relatively close announcement texts disclosed on the website, in CN21892324U, two layers of screen meshes are separated by a pad 8, and when disassembled, the second plate frame 7 needs to be disassembled first, and then the second screen mesh 6 can be replaced, if the first screen mesh 5 needs to be replaced, the pad 8 also needs to be disassembled and replaced, which is relatively complicated, and most importantly, the pad 8 exists between the first screen mesh 5 and the second screen mesh, and when the residue enters the space separated by the pad 8, the blockage phenomenon is more likely to occur.
[0004] In another announcement text, CN217868941U discloses that the filter plate 400 and the supporting plate 300 are installed through the threaded rod 200, the structure of the filter plate 400 is adopted, and the existing disadvantages are that the cost is high and the practicability is poor, as shown in the drawings, the filter plate 400 and the supporting plate 300 have the same area, and the area of the whole plate is small, when the whole dewaterer cylinder needs to be replaced, the area to be replaced is generally large, several filter plates 400 and / or supporting plates 300 need to be replaced, so that the ideal condition after one repair can be achieved, and the actual production needs can be met. SUMMARY
[0005] The utility model discloses a dewaterer sieve plate structure which reduces the maintenance and replacement time and improves the production efficiency.
[0006] The utility model discloses the following technical scheme:
[0007] A dewaterer sieve plate structure, comprising an outer sieve plate, an inner sieve plate, and a screen mesh installed on the outer sieve plate, wherein one side of the outer sieve plate is provided with a convex edge structure and / or a notch structure in the length direction of the outer sieve plate, and the other side of the outer sieve plate is provided with a notch structure and / or a convex edge structure corresponding to the one side, and the length of the convex edge structure is equal to the length of the notch structure.
[0008] Alternatively: The corresponding edge on the other side of the outer screen plate has a flush structure;
[0009] Alternatively: the length of the convex edge structure is less than the length of the notch structure; the width of the convex edge structure is equal to the width of the notch structure;
[0010] Alternatively: the width of the convex edge structure is less than the width of the notch structure;
[0011] Alternatively: The outer sieve plate has notch structures on both sides, and the notch structures are provided accordingly.
[0012] Compared with the prior art, the present invention, which adopts the above technical solution, uses a method of installation where the convex edge structure and / or the notch structure of two adjacent outer screen plates are matched. This allows for easy replacement of the screen by removing only one problematic or replaceable outer screen plate during the assembly and disassembly process. This method is efficient and convenient to operate.
[0013] The present invention adopts the following preferred embodiment:
[0014] One of the preferred options:
[0015] The outer screen plate is equipped with an outer screen mesh plate with a cross-sectional and cross-sectional frame structure.
[0016] Option Two:
[0017] When the outer screen plate is installed on the dewatering cylinder, a long strip-shaped pressure plate structure is installed on the protrusion and notch structure between two adjacent outer screen plates.
[0018] Option 3:
[0019] The outer screen plate is equipped with three layers of screens.
[0020] Option 4:
[0021] The length of the notch structure is 418 mm, and the length of the convex edge structure is 330 mm.
[0022] Option 5:
[0023] The first mounting holes on both sides of the outer screen plate in the width direction adopt an elongated hole structure.
[0024] Option Six:
[0025] The convex edge structure and the concave surface structure are respectively provided with a second mounting hole of elongated hole structure in the width direction.
[0026] Option 7:
[0027] The inner sieve plate is equipped with a slotted sieve plate.
[0028] Option 8:
[0029] The slotted sieve plate has a sieve gap of 4×30mm.
[0030] Option Nine:
[0031] The sieve bar height of the slotted sieve plate is 2mm, the back thickness of the sieve bar is 2mm, and the cross-section of the sieve bar has an inverted trapezoidal structure. Attached Figure Description
[0032] Figure 1 This is a structural schematic diagram of the outer screen plate and the outer screen mesh plate of this utility model.
[0033] Figure 2 This is a schematic diagram of the assembly structure of the inner sieve plate of this utility model.
[0034] Figure 3 This is an enlarged cross-sectional diagram of a slotted sieve plate (enlarged to a scale of 1:5).
[0035] Figure 4 This is a schematic diagram of the pressure plate structure of this utility model.
[0036] Figure 5 This is a schematic diagram of another type of outer screen plate.
[0037] Figure 6 This is a schematic diagram of the overall assembly of the outer screen plate of this utility model.
[0038] Figure 7 This is a schematic diagram of the structure of the outer screen plate of this utility model.
[0039] Figure 8 This is a side view of the connection between the outer screen plate and the pressure plate structure of this utility model.
[0040] Figure 9 yes Figure 8 Enlarged view of part A in the image.
[0041] Figure 10 This is a schematic diagram of the structure of Example 2 (including the outer screen plate).
[0042] Figure 11 This is a schematic diagram of the structure of Example 3. Detailed Implementation
[0043] The present invention will be described in detail below with reference to the accompanying drawings and embodiments: Example 1:
[0044] A screen plate structure for a dewatering device, see attached document. Figure 1 To be continued Figure 9The specific structure shown in the figure includes: outer screen plate 1, convex edge structure 101, notch structure 102, first mounting hole 103, second mounting hole 104, flush structure 105, inner screen plate 2, third mounting hole 201, fourth mounting hole 202, slotted screen plate 3, support bar 301, trapezoidal screen bar 302, outer screen plate 4, screen 5, pressure plate structure 6, and mounting round hole 601.
[0045] In this embodiment, the sieve plate structure applied to the dewatering device cylinder includes an outer sieve plate 1 and an inner sieve plate, wherein the overall structure of the dewatering device cylinder is a cylindrical structure composed of two symmetrical semi-cylindrical structures.
[0046] In this embodiment, the inner screen plate 2 is updated from the existing single-layer screen structure, which has poor durability and requires frequent replacement, to a slotted screen plate 3. The inner screen plate 2 is equipped with a slotted screen plate 3, which has a sieve gap of 4×30mm. The screen bars of the slotted screen plate 3 are 2mm high and 2mm thick, with an inverted trapezoidal cross-section. The slotted screen plate 3 consists of a transverse support bar 301 and trapezoidal screen bars 302 installed on one side of the transverse support bar 301. This improvement increases the strength and durability of the inner screen plate 2. The length of the inner screen plate 2 is as follows: Figure 2 The structure shown has an elongated hole on the left, which allows for adjustment of the actual installation distance or error: the third mounting hole 201, and a circular hole structure 202 on the right.
[0047] The specific structure of the outer sieve plate 1 is described in detail below:
[0048] The screen 5 on the outer screen plate 1 consists of three layers stacked together, with dimensions of 1.0×0.55mm, 2.0×0.9mm, and 6.3×1.8mm respectively. To reduce bulging of the screen 5 due to material impact, an outer screen plate 4 with a cross-sectional frame structure connected to the outer screen plate 1 is added to the outer side of the screen 5, as shown in the figure. Figure 1 , Figure 6 and Figure 8 The specific structure shown is that the outer screen plate 4 is composed of horizontal and vertical strips arranged in a crisscross pattern; its height is shown in the attached diagram. Figure 8 As shown, the height is higher than that of the outer sieve plate 1, which increases its strength.
[0049] Along the length of the outer sieve plate 1, such as Figure 1The specific structure shown has a convex edge structure 101 and a notch structure 102 on one side of the outer screen plate 1; the corresponding edge on the other side of the outer screen plate 1 has a notch structure 102 and a convex edge structure 101. That is, when two adjacent outer screen plates 1 of the same specification are installed on the dewatering cylinder, the convex edge structure of one outer screen plate 1 is fitted with the notch structure 102 on the adjacent outer screen plate 1, and the notch structure 102 of one outer screen plate is fitted with the convex edge structure on the adjacent outer screen plate 1. Other adjacent outer screen plates 1 are installed in the same way until a semi-circular cylinder structure or a fully circular cylinder structure is formed.
[0050] Because the dewatering unit's cylinder is a cylindrical structure composed of two symmetrical semi-cylindrical structures, during actual installation, to save materials or reduce processing requirements, the outer screen plates on the two sides of the semi-cylindrical sections are typically made with only one side having a convex or concave structure, while the other side is a straight, flush structure 105; For example... Figure 5 The specific structure shown is shown below.
[0051] The length of the convex edge structure 101 is equal to the length of the notch structure 102, and the width of the convex edge structure 101 is equal to the width of the notch structure 102. The convex edge structure 101 and the notch structure 102 are of equal length and width, which is a relatively tight fit.
[0052] If another method is used: such as Figure 6 As can be clearly seen from the specific structure shown, the length of the convex edge structure 101 is significantly less than the length of the notch structure 102, and the width of the convex edge structure 101 is equal to the width of the notch structure 102, or: the width of the convex edge structure 101 is less than the width of the notch length 102, which is a structure that is relatively easy to install.
[0053] The outer screen plate 1 is equipped with a pressure plate structure 6 of the same specifications. The aforementioned three-layer screen 5 is installed on the outer screen plate 1. The outer screen plate 1 and the screen 5 are connected together by cross-slot screws. See Appendix. Figure 8 and attached Figure 9 The structure shown is as follows; then, at the connection between the concave and convex structures of the two adjacent outer screen plates 1, a long strip pressure plate structure 6 is installed, the total length of the pressure plate structure 6 is equal to the total length of the outer screen plate 1; the width of the pressure plate structure 6 is less than or equal to the width of the convex edge structure 101 or the notch structure 102.
[0054] In this embodiment, the length of the notch structure 102 is 418 mm, and the length of the convex edge structure 101 is 330 mm, facilitating the matching installation of the concave and convex structures of adjacent two outer screen plates 1; in this embodiment, the curvature of the outer screen plate 1 is R3520 (…). Figure 8 (The radius is not expressed in radians).
[0055] The first mounting holes 103 on both sides of the outer screen plate 1 in the width direction (the width direction here refers to the circumferential direction of the dewatering cylinder when it is installed on the dewatering cylinder, and the so-called length direction refers to the axial direction of the dewatering cylinder) adopt an elongated hole structure.
[0056] The convex edge structure 101 and the notch structure 102 are respectively provided with second mounting holes 104 of elongated hole structure in the width direction.
[0057] In actual production, when the screen 5 on a certain outer screen plate 1 needs to be replaced due to damage, the pressure plate structure 6 placed on the outer screen plate 1 is first removed, and then the outer screen plate 1 is removed from the dewatering cylinder. In this way, the screen 5 can be replaced very easily without having to remove the adjacent outer screen plates 1 and then install them; saving time and increasing efficiency.
[0058] This utility model is not limited to the cylindrical structure composed of two semi-circular cylinders listed in the above embodiments, but is also applicable to the integrated cylindrical dewatering device cylinders listed in the background art. When used in an integrated cylindrical dewatering device cylinder, then, as Figure 5 The flat structure 5 on one side of the outer screen plate 1 shown will no longer be needed. Only the concave-convex interlocking structure formed by the convex side structure 101 and the notched side structure 102 is needed. Example 2:
[0059] See appendix Figure 10 The main difference between the structure shown and Embodiment 1 is that the two sides of the outer screen plate 1 only have notch structures 102. The notch structures 102 on both sides are positioned correspondingly. Each notch structure 102 is the same as half of the structure of the second mounting hole 104 in Embodiment 1. When the two outer screen plates 1 are installed together, the two notch structures 102 are used as bolt holes for the pressure strip structure 6 installed above the two adjacent outer screen plates 1. The structure is compact and reasonable, and saves material. Example 3:
[0060] See appendix Figure 11 The structure shown differs from Embodiment 1 mainly in that the raised structures 101 and notched structures 102 on both sides of the outer screen plate 1 adopt a wavy structure. Similarly, each outer screen plate 1 has a second mounting hole 104 for mounting the pressure plate structure 6 at the raised structure 101 on both sides. This structure changes the rigid fitting relationship of the steel plates to a flexible fitting relationship during the cutting process, reducing the internal stress of the steel plates and achieving optimal strength.
[0061] This utility model is not limited to the specific structures listed above. Any installation method that utilizes the interlocking structure formed by the convex edge structure 101 and the notch structure 102 in this application, regardless of any changes in language or technical terminology, shall be considered within the protection scope of this utility model.
[0062] When an outer screen plate 4 is added to increase strength, and a three-layer screen 5 is added, even if the screen mesh specifications are different from those described in this embodiment, it is considered to fall within the protection scope of this utility model.
Claims
1. A screen plate structure for a dewatering device, comprising an outer screen plate, an inner screen plate, and a screen mesh mounted on the outer screen plate, characterized in that, Along the length of the outer sieve plate, one side of the outer sieve plate is provided with a convex edge structure and / or a notch structure, and the corresponding side of the other side of the outer sieve plate is provided with a notch structure and / or a convex edge structure, and: the length of the convex edge structure is equal to the length of the notch structure; Alternatively: The corresponding edge on the other side of the outer screen plate has a flush structure; Alternatively: the length of the convex edge structure is less than the length of the notch structure; the width of the convex edge structure is equal to the width of the notch structure; Alternatively: the width of the convex edge structure is less than the width of the notch structure; Alternatively: The outer sieve plate has notch structures on both sides, and the notch structures are provided accordingly.
2. The screen plate structure of the dewatering device according to claim 1, characterized in that, The outer screen plate is equipped with an outer screen mesh plate with a cross-sectional and cross-sectional frame structure.
3. The screen plate structure of the dewatering device according to claim 2, characterized in that, When the outer screen plate is installed on the dewatering cylinder, a long strip-shaped pressure plate structure is installed on the protrusion and notch structure between two adjacent outer screen plates.
4. The screen plate structure of the dewatering device according to claim 1, characterized in that, The screen has a three-layer structure.
5. The screen plate structure of the dewatering device according to claim 4, characterized in that, The length of the notched structure is 418 mm, and the length of the convex edge structure is 330 mm.
6. The screen plate structure of the dewatering device according to claim 1, characterized in that, The first mounting holes on both sides of the outer screen plate in the width direction adopt an elongated hole structure.
7. The screen plate structure of the dewatering device according to claim 1, characterized in that, The convex edge structure and the notched structure are respectively provided with a second mounting hole of elongated hole structure in the width direction.
8. The screen plate structure of the dewatering device according to claim 1, characterized in that, The inner sieve plate is equipped with a slotted sieve plate.
9. The screen plate structure of the dewatering device according to claim 8, characterized in that, The slotted sieve plate has a sieve gap of 4×30mm.
10. The screen plate structure of the dewatering device according to claim 8 or 9, characterized in that, The sieve bar height of the slotted sieve plate is 2mm, the back thickness of the sieve bar is 2mm, and the cross-section of the sieve bar has an inverted trapezoidal structure.