Novel filter cellular board
By designing a new filter honeycomb plate in the production of PVC calendered membrane, optimizing the layout and structure of the discharge holes, the problems of large blind spots and insufficient structural strength in the existing technology are solved, and more efficient filtration and better quality products are achieved.
Patent Information
- Application Number
- CN202420636373.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In the production of existing PVC calendered membranes, the discharge hole design of the honeycomb plate of the filter machine has problems such as large blind spots and insufficient structural strength, which leads to material retention and carbonization, affecting product quality.
A new type of filter honeycomb plate is designed. The center line of the discharge hole is distributed in an arc shape. The discharge hole is a conical hole with a small inlet end and a large outlet end. The spherical structure of the raised spherical structure in the middle of the filter plate body is optimized to improve filtration efficiency and mechanical strength.
By optimizing the layout and structural design of the discharge holes, the filter dead angle area is reduced, the discharge volume and filtration efficiency are improved, the material carbonization is avoided, the mechanical strength of the filter plate body is enhanced, and the manufacturing cost is reduced.
Smart Images
Figure CN222566933U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of PVC calendering film production, and specifically relates to a novel honeycomb plate for a filter. Background Art
[0002] During the production process of PVC calendered film, in order to prevent impurities in the PVC mixture sent from the open mill to the calender from damaging the wheel surface of the calender or affecting the product quality due to the presence of impurities, there is a filter in front of the calender. The material output from the open mill is first sent to the filter, and the impurities are filtered before being sent to the calender by the filter. The filter plate (honeycomb plate) plays a filtering role in the filter, which is generally composed of a filter plate body, a pressure ring, and two to three stainless steel meshes of different mesh sizes located between the filter plate body and the pressure ring. The filter plate body has hundreds of conical discharge holes. If the size, taper and distribution density of the discharge holes are not designed reasonably, it will directly affect the filtering effect. There are the following shortcomings in the working process:
[0003] 1. Because the discharge holes are distributed linearly on the main body of the filter plate, the filtration dead angle (the area between the holes on the surface of the main body of the filter plate) is linear and flake-shaped, especially the outer circles, which are prone to retain coke. The material in this area is easy to be retained, resulting in coke and affecting product quality.
[0004] 2. Because the filter machine outputs PVC material, the thrust on the filter plate body is very large. The thickness of the filter plate body is 35-45mm, and the diameter of the discharge hole is 8-10mm. The PVC material passes through hundreds of slender discharge holes. The resistance is very large, and the filter plate body is required to have a large mechanical strength. Otherwise, the filter plate body will be deformed, the discharge hole will be out of roundness, and the material will be more difficult to extrude, especially the outer circle of two to three circles. The discharge is particularly unfavorable. The material will be carbonized if it stays in the discharge hole for a long time. If the carbonized material stays in the discharge hole, it will create resistance to the discharge, and the discharge into the calender will affect the product quality. Utility Model Content
[0005] The utility model is to solve the above technical problems and provide a novel filter honeycomb plate with small filtering dead angle, high structural strength and light weight.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a new type of honeycomb plate for a filter, comprising a filter plate body which is in the shape of a disc as a whole, and a plurality of transparent discharge holes are opened on the filter plate body, wherein the center line of one discharge hole coincides with the center line of the filter plate body, and the centers of the other discharge holes are evenly arranged on a plurality of concentric circles with the center of the filter plate body as the center, and the center lines of the discharge holes on the concentric circles extending outward from the center of the filter plate body are distributed in an arc shape.
[0007] All the discharge holes are conical holes with a small inlet end and a large outlet end. The filter plate body has a flat structure on one side of the discharge hole inlet end, and a spherical structure with a raised middle part on one side of the discharge hole outlet end.
[0008] The inlet diameter of all discharge holes is 8mm, the taper of the discharge holes on the two outermost concentric circles is 1:30, and the taper of the other discharge holes is 1:50.
[0009] A step groove for installing a positioning pressing ring is provided on the outer circle of the plane structure on the filter plate body.
[0010] By adopting the above technical scheme, the arrangement structure of the discharge holes of the utility model is more uniform and compact, the spacing between adjacent discharge holes is smaller, the passing area of the filter plate body is increased, the discharge is smoother, and the discharge volume is greatly improved under the same filtration pressure. At the same time, due to the reduction of dead corner area, the carbonization of the material is also reduced or even avoided.
[0011] The raised spherical structure in the middle of the filter plate body makes the middle thick and the edge thin, which improves the mechanical strength. The filter plate body does not deform, ensuring that the slender discharge hole maintains good permeability.
[0012] The taper of the discharge holes on the two outermost concentric circles is 1:30. This structure of the discharge holes makes the outlet diameter larger, so that the material passes through the discharge holes in the two outermost circles more quickly, thereby improving the filtration efficiency and avoiding carbonization of the material.
[0013] Since the number of discharge holes opened on the filter plate body with equal diameter increases, the edge thickness is reduced and the middle thickness is increased, the weight of the entire filter plate body is reduced, thereby reducing the manufacturing cost.
[0014] In summary, the utility model has a scientific principle, a simple and compact structure, improved structural strength, an increased filtering area, improved material passing efficiency, and greatly improved quality of filtered materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the plane structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the planar radial cross-sectional structure of the utility model;
[0017] Figure 3 yes Figure 2 Enlarged view of part A in the middle;
[0018] Figure 4 It is a schematic diagram showing that the center line of the discharge holes is distributed in an arc shape. DETAILED DESCRIPTION
[0019] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.
[0020] like Figure 1-Figure 3As shown, a novel filter honeycomb plate of the utility model comprises a filter plate body 1 which is in the shape of a disc as a whole, and a plurality of transparent discharge holes 2 are opened on the filter plate body 1, wherein the center line of one discharge hole 2 coincides with the center line of the filter plate body 1, and the centers of the other discharge holes 2 are evenly arranged on a plurality of concentric circles with the center of the filter plate body 1 as the center, and the center lines of the discharge holes 2 on the concentric circles extending outward from the center of the filter plate body 1 (such as Figure 4 The distribution is in the shape of a circular arc.
[0021] All the discharge holes 2 are conical holes with a small inlet end and a large outlet end. The filter plate body 1 has a plane structure 3 on one side of the discharge hole 2 inlet end, and has a spherical structure 4 with a raised middle part on one side of the discharge hole 2 outlet end.
[0022] The inlet diameters of all the discharge holes 2 are 8 mm, the tapers Δ1 of the discharge holes 2 on the two outermost concentric circles are both 1:30, and the tapers Δ2 of the other discharge holes 2 are all 1:50.
[0023] A step groove 5 for installing a positioning pressing ring is provided on the outer circle of the plane structure 3 on the filter plate body 1 .
[0024] The arrangement structure of the discharge holes 2 of the utility model is more uniform and compact, and the spacing between adjacent discharge holes 2 is smaller, which increases the passing area of the filter plate body 1, makes the discharge smoother, and greatly improves the discharge volume under the same filtering pressure. At the same time, due to the reduction of dead angle area, carbonization of materials is also reduced or even avoided.
[0025] The raised spherical structure 4 in the middle of the filter plate body 1 makes the middle thick and the edge thin, thereby improving the mechanical strength. The filter plate body 1 does not deform, ensuring that the elongated discharge hole 2 maintains good permeability.
[0026] The tapers of the discharge holes 2 on the two outermost concentric circles are both 1:30. This structure of the discharge holes 2 makes the outlet diameter larger, so that the material passes through the two outermost circles of discharge holes 2 more quickly, thereby improving the filtration efficiency and avoiding carbonization of the material.
[0027] Since the number of discharge holes 2 opened on the filter plate body 1 of equal diameter increases, the edge thickness is reduced and the middle thickness is increased, the weight of the entire filter plate body 1 is reduced, thereby reducing the manufacturing cost.
[0028] The spherical structure 4 protruding in the middle of the filter plate body 1 in the utility model can also be arranged on a side of the inlet end of the discharge hole 2, so that when the material is subjected to the filtering pressure, the material has a tendency to move from the middle of the filter plate body 1 to the circumferential edge, which can further avoid the existence of a dead angle on the feeding side of the filter plate body 1.
[0029] The above embodiments illustrate the basic principles and features of the utility model, but the above only illustrates the preferred embodiments of the utility model and is not limited by the embodiments. Under the inspiration of this patent, ordinary technicians in this field can also make many forms of deformation and improvement without departing from the purpose of the utility model and the scope of protection of the claims, which are all within the scope of protection of the utility model. Therefore, the patent and protection scope of the utility model shall be subject to the attached claims.
Claims
1. A novel honeycomb plate for a filter, comprising a filter plate body which is in the shape of a disc as a whole, characterized in that: The filter plate body is provided with a number of transparent discharge holes, the center line of one of the discharge holes coincides with the center line of the filter plate body, and the centers of the other discharge holes are evenly arranged on a number of concentric circles with the center of the filter plate body as the center, and the center lines of the discharge holes on the concentric circles extending outward from the center of the filter plate body are distributed in an arc shape.
2. A novel filter honeycomb plate according to claim 1, characterized in that: All the discharge holes are conical holes with a small inlet end and a large outlet end. The filter plate body has a flat structure on one side of the discharge hole inlet end, and a spherical structure with a raised middle part on one side of the discharge hole outlet end.
3. A novel filter honeycomb plate according to claim 2, characterized in that: The inlet diameter of all discharge holes is 8mm, the taper of the discharge holes on the two outermost concentric circles is 1:30, and the taper of the other discharge holes is 1:
50.
4. A novel filter honeycomb plate according to claim 3, characterized in that: A step groove for installing a positioning pressing ring is provided on the outer circle of the plane structure on the filter plate body.