Filter disc of diatomite filter
By designing a convex rib in the filter of the celite filter to support the first filter and stabilizing the second filter through the first filter, the problem of degradation of the filter effect caused by the deformation of the filter is solved, and a more efficient filtering effect is achieved.
Patent Information
- Application Number
- CN202421804802.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Due to the hollow structure and suspended filters of existing celite filters, the filters are poor in load-bearing capacity, which leads to the filters being easily deformed when the filter film thickness increases, and the filtering effect decreases.
A filter structure including a lining ring, a chassis, a first filter mesh and a second filter mesh is designed, and the first filter mesh is supported by a convex rib on the chassis to prevent it from deforming, and to stabilize the second filter mesh through the support action of the first filter mesh to ensure the integrity of the filter membrane.
It effectively prevents deformation of the second filter, ensures the integrity and filtering effect of the filter membrane, and avoids the problems of increasing the weight of the filter and reducing the filtration efficiency.
Smart Images
Figure CN222841688U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of filters, and more specifically, relates to a filter disc of a diatomaceous earth filter. Background Art
[0002] Filtration is an essential part of the liquor production process. The quality of the filtration effect is directly related to the quality of the final product. The existing liquor filter generally uses a diatomaceous earth filter, which has multiple filter plates stacked on the filter shaft. Figure 1 As shown, the filter disc includes two supporting filter plates a, a filter screen b is placed on the supporting filter plate a, a filter cloth c is placed on the lower filter screen, and the two filter screens are fixed by using the edge wrapping d. The two supporting filter plates are hollow and connected to the filter shaft. There are several filter holes on the filter screen, and diatomaceous earth forms a filter membrane on the surface of the filter screen. This filter disc structure is hollow and the filter screen is suspended, resulting in poor load-bearing capacity. As the thickness of the filter membrane increases, the filter screen is easily deformed by the increased pressure, resulting in poor filtering effect. If the thickness is increased, the filter disc will be too heavy and the height space occupied will increase, which will occupy the internal cavity of the filter machine, so that the number of filter discs in the filter machine will be reduced, thereby reducing the filtering efficiency. Utility Model Content
[0003] The purpose of the embodiments of the present application is to provide a filter disc for a diatomaceous earth filter to solve the technical problem in the prior art that the filter screen of the filter disc is easily deformed.
[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a filter plate of a diatomaceous earth filter, including: a liner, a chassis, a first filter screen and a second filter screen, the liner is sealed and arranged in the center of the chassis, a plurality of liquid outlet holes are arranged on the side wall of the liner at intervals, a plurality of convex ribs are arranged on the upper surface of the chassis, a filtrate flow channel is formed between adjacent convex ribs, the filtrate flow channel is connected with the liquid outlet hole, the first filter screen is installed on the chassis and supported by the plurality of convex ribs, the second filter screen is installed on the first filter screen, and the filter hole diameter of the second filter screen is smaller than the filter hole diameter of the first filter screen.
[0005] In one embodiment, the chassis includes an inner concave horizontal surface extending radially from the inside to the outside, an inclined bottom surface, a first platform, a second platform and a pressed folded edge, the inner concave horizontal surface is used for sealing and installing a liner, a third platform is provided on the liner, the first filter screen is placed on the third platform and the first platform, the second filter screen is placed on the first filter screen and the second platform, and the pressed folded edge presses against the edge of the second filter screen.
[0006] In one embodiment, a convex ring is provided on the inner concave horizontal surface, the cross section of the convex ring is semicircular or arc-shaped, and a concave ring matched with the convex ring is provided on the bottom surface of the liner; a sealing ring is provided on the upper surface of the liner.
[0007] In one embodiment, the ribs are stamped on the chassis.
[0008] In one embodiment, the upper surface of the rib is flush with the first platform and the third platform.
[0009] In one embodiment, the pore size of the first filter is 4-5 mm.
[0010] In one embodiment, the pore size of the second filter is 20-25 μm.
[0011] In one embodiment, the bushing is made of stainless steel.
[0012] In one embodiment, the bottom plate, the first filter screen and the second filter screen are all made of stainless steel.
[0013] The beneficial effect of the filter plate of the diatomaceous earth filter provided in the present application is that, compared with the prior art, the filter plate of the diatomaceous earth filter provided in the present application can effectively prevent the deformation of the second filter screen through the supporting effect of the convex ribs and the first filter screen, thereby ensuring the integrity of the filter membrane on the second filter screen and ensuring the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 Schematic diagram of the cross-sectional structure of the filter disc in the prior art
[0016] Figure 2 A schematic diagram of the overall structure of a filter disc of a diatomaceous earth filter provided in an embodiment of the present application;
[0017] Figure 3 A schematic cross-sectional view of a filter disc of a diatomaceous earth filter provided in an embodiment of the present application;
[0018] Figure 4 for Figure 3 The enlarged view of point A in the middle;
[0019] Figure 5 for Figure 3 The enlarged view of point B in the middle;
[0020] Figure 6 A schematic diagram of the structure of a bottom plate in a filter disc of a diatomaceous earth filter provided in an embodiment of the present application;
[0021] Figure 7 A schematic diagram of the three-dimensional structure of a liner in a filter disc of a diatomaceous earth filter provided in an embodiment of the present application;
[0022] Figure 8 This is a schematic diagram of the bottom view of the structure of the liner ring in the filter plate of the diatomaceous earth filter provided in an embodiment of the present application.
[0023] Among them, the reference numerals in the figure are:
[0024] 1. Bushing; 11. Liquid outlet; 12. Third platform; 13. Concave ring; 14. Ring groove; 2. Chassis; 21. Raised rib; 22. Filtrate flow channel; 23. Inner concave horizontal surface; 231. Raised ring; 24. Inclined bottom surface; 25. First platform; 26. Second platform; 27. Pressed folded edge; 3. First filter screen; 4. Second filter screen; 5. Sealing ring. DETAILED DESCRIPTION
[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] like Figure 2-8 As shown, a filter disc of a diatomaceous earth filter provided in an embodiment of the present application is now described. The filter disc comprises: a liner 1, a chassis 2, a first filter screen 3 and a second filter screen 4. The liner 1, the chassis 2, the first filter screen 3 and the second filter screen 4 are all provided with a central hole, and the chassis 2 and the liner 1 are used to be sleeved on the filter shaft of the diatomaceous earth filter. Among them, the liner 1 is sealed and arranged in the center of the chassis 2, and a circle of liquid outlet holes 11 are arranged on the side wall of the liner 1 at intervals, and the liquid outlet holes 11 are used to align the liquid inlet holes on the filter shaft. A plurality of convex ribs 21 are provided on the upper surface of the chassis 2, and the convex ribs 21 are arc-shaped strips and are arranged around the center array; a filtrate flow channel 22 is formed between two adjacent convex ribs 21, and the lower end of the filtrate flow channel 22 is connected to the liquid outlet hole 11. The first filter screen 3 is installed on the chassis 2 and supported by a number of ribs 21 to ensure that the first filter screen 3 will not be deformed; the second filter screen 4 is installed on the first filter screen 3, and the inner edge of the second filter screen 4 is welded and fixed to the circumference of the liner 1. The filter hole diameter of the second filter screen 4 is smaller than the filter hole diameter of the first filter screen 3; the filter hole diameter of the first filter screen 3 is small, which is used to form a diatomaceous earth filter membrane; the first filter screen 3 is placed flat on the second filter screen 4 to ensure that it will not be deformed and ensure the filtering effect; the first filter screen 3 and the ribs 21 cooperate with each other to effectively reduce the thickness and weight of the second filter screen 4; the filter hole diameter of the first filter screen 3 is large, which can reduce its own weight. After the wine is filtered through the filter membrane on the second filter screen 4, it passes through the first filter screen 3 and then falls onto the chassis 2, and then flows into the filter shaft through the outlet hole 11 after being collected through the filtrate flow channel 22 to complete the filtering work.
[0030] In this embodiment, if Figure 3 and Figure 4As shown, the chassis 2 includes an inner concave horizontal surface 23 extending radially from the inside to the outside, an inclined bottom surface 24, a first platform 25, a second platform 26 and a pressed folded edge 27; the center position of the chassis 2 is lower than the outer edge position, and the purpose of this arrangement is to gather the filtrate to the center; at the same time, this arrangement is also to facilitate the stacking of multiple filter discs on the filter shaft, so that there is a certain distance between two adjacent filter discs, so as to filter the wine. The concave horizontal surface 23 is used to seal the bottom surface of the installation liner 1. The upper outer ring on the liner 1 is provided with a third platform 12. The first platform 25 and the third platform 12 are on the same horizontal plane. The first filter screen 3 is placed on the third platform 12 and the first platform 25. The height difference between the first platform 25 and the second platform 26 is equal to the height of the first filter screen 3, that is, the upper surface of the first filter screen 3 and the second platform 26 are on the same horizontal plane. The second filter screen 4 is placed on the first filter screen 3 and the second platform 26. The pressed folded edge 27 is formed by the outer edge of the chassis 2 bending upward and inward, and the pressed folded edge 27 presses against the edge of the second filter screen 4 to fix the second filter screen 4.
[0031] In this embodiment, if Figure 3-7 As shown, a convex ring 231 is provided on the concave horizontal surface 23, and the cross-section of the convex ring 231 is semicircular or arc-shaped. The bottom surface of the liner 1 is provided with a concave ring 13 that is compatible with the convex ring 231; the convex ring 231 and the concave ring 13 are used to achieve a sealed connection between the bottom surface of the liner 1 and the chassis 2, and the liner 1 and the chassis 2 are welded and sealed or bonded.
[0032] A sealing ring 5 is provided on the upper surface of the liner 1, and an arc-shaped protrusion is provided on the upper end surface of the sealing ring 5. The arc-shaped protrusion is used to seal and assemble with the concave ring 13 on the filter disc superimposed above, thereby realizing a sealed assembly between the upper and lower filter discs, and its purpose is to ensure that the filtrate can only enter the filter shaft through the liquid outlet 11 after being filtered by the second filter screen 4.
[0033] In this embodiment, the ribs 21 are stamped on the chassis 2, and the purpose of such arrangement is to ensure the structural integrity of the chassis 2 and also to reduce the overall weight of the chassis 2. The upper surface of the ribs 21 is flush with the first platform 25 and the third platform 12, and is used to support the middle position of the first filter screen 3 to prevent the first filter screen 3 from being deformed, so as to better support the second filter screen 4. The chassis 2 can also be injection molded by a mold.
[0034] In this embodiment, the pore size of the first filter screen 3 is 4-5 mm. The pore size of the second filter screen 4 is 20-25 μm. The material of the lining ring 1 is a stainless steel part. The chassis 2, the first filter screen 3, and the second filter screen 4 are all made of stainless steel, and the stainless steel is 304 or 316.
[0035] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A filter disc for a diatomaceous earth filter, characterized in that: include: A liner (1), a chassis (2), a first filter screen (3) and a second filter screen (4), wherein the liner (1) is sealingly arranged at the center of the chassis (2), a plurality of liquid outlet holes (11) are arranged at intervals on the side wall of the liner (1), a plurality of convex ribs (21) are arranged on the upper surface of the chassis (2), a filtrate flow channel (22) is formed between adjacent convex ribs (21), and the filtrate flow channel (22) is connected to the liquid outlet hole (11), the first filter screen (3) is mounted on the chassis (2) and supported by the plurality of convex ribs (21), the second filter screen (4) is mounted on the first filter screen (3), and the filter hole diameter of the second filter screen (4) is smaller than the filter hole diameter of the first filter screen (3).
2. The filter disc of the diatomaceous earth filter according to claim 1, characterized in that: The chassis (2) comprises an inner concave horizontal surface (23) extending radially outward from the inside to the outside, an inclined bottom surface (24), a first platform (25), a second platform (26) and a pressed folded edge (27); the inner concave horizontal surface (23) is used for sealing and installing a liner (1); a third platform (12) is provided on the liner (1); the first filter screen (3) is placed on the third platform (12) and the first platform (25); the second filter screen (4) is placed on the first filter screen (3) and the second platform (26); and the pressed folded edge (27) presses against the edge of the second filter screen (4).
3. The filter disc of the diatomaceous earth filter according to claim 2, characterized in that: A convex ring (231) is provided on the inner concave horizontal surface (23), and the cross section of the convex ring (231) is semicircular or arc-shaped. The bottom surface of the liner (1) is provided with a concave ring (13) matched with the convex ring (231); and a sealing ring (5) is provided on the upper surface of the liner (1).
4. The filter disc of the diatomaceous earth filter according to claim 2, characterized in that: The convex rib (21) is formed by stamping on the chassis (2).
5. The filter disc of the diatomaceous earth filter according to claim 4, characterized in that: The upper surface of the convex rib (21) is flush with the first platform (25) and the third platform (12).
6. The filter disc of the diatomaceous earth filter according to any one of claims 1 to 5, characterized in that: The pore size of the first filter screen (3) is 4-5 mm.
7. The filter disc of the diatomaceous earth filter according to claim 6, characterized in that: The pore size of the second filter screen (4) is 20-25 μm.
8. The filter disc of the diatomaceous earth filter according to claim 1, characterized in that: The liner (1) is made of stainless steel.
9. The filter disc of the diatomaceous earth filter according to claim 1, characterized in that: The base plate (2), the first filter screen (3) and the second filter screen (4) are all made of stainless steel.