An ultra-high pressure diaphragm filter plate with a metal reinforcing frame

Abstract

This utility model discloses an ultra-high pressure diaphragm filter plate with a metal reinforcing frame, belonging to the technical field of ultra-high pressure diaphragm filter plates. It includes: a filter plate body with rectangular sealing grooves on both sides; and a frame, which is fixedly fitted around the periphery of the filter plate body, with both ends folded towards the center of the filter plate body. Sealing components are fixedly installed on the inner side of the folded ends of the frame, and the sealing components are adapted to the sealing grooves. Under pressure, the corresponding sealing components undergo elastic deformation to press against the groove wall. This utility model provides a frame on the outside of the filter plate body. During operation, the main load-bearing component is a metal frame, which improves stability and prevents the frame from bursting due to the expansion of the filter plate body.

Description

Technical Field

[0001] This utility model relates to the field of ultra-high pressure diaphragm filter plate technology, specifically to an ultra-high pressure diaphragm filter plate with a metal reinforcing frame. Background Technology

[0002] Ultra-high pressure diaphragm filter plates are made by extruding and molding or injection molding polypropylene mixtures for the liner and membrane. These filter plates are used in ultra-high pressure filter presses. Currently, during the pressing process in a filter press, under no-load or low-pressure feeding stages, all the hydraulic cylinder clamping force is concentrated on the relatively narrow sealing surface around the filter plate, generating a large concentrated load. However, the membrane's pressure resistance is limited. This can cause the polypropylene filter plate to become thin or misaligned, leading to failure and damage.

[0003] During diaphragm pressing, excessive pressure inside the filter chamber can cause the outer frame of the filter plate to bulge, leading to frame breakage, damage, and even safety hazards.

[0004] To address the aforementioned problems, this invention provides an ultra-high pressure diaphragm filter plate with a metal reinforcing frame. Utility Model Content

[0005] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide an ultra-high pressure diaphragm filter plate with a metal reinforcing frame. A frame is provided on the outside of the filter plate body. During operation, the main load-bearing component is the metal frame, which can improve stability and prevent the frame from bursting due to the expansion of the filter plate body.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an ultra-high pressure diaphragm filter plate with a metal reinforcing frame, comprising: The filter plate body has rectangular sealing grooves on both sides. The frame is fixedly sleeved around the periphery of the filter plate body, with both ends folded towards the center of the filter plate body. A sealing component is fixedly installed on the inner side of the folded end of the frame, and the sealing component is adapted to the sealing groove. When under pressure, the corresponding sealing component undergoes elastic deformation and presses against the wall of the sealing groove.

[0007] Preferably, the frame includes: Two splicing frames are symmetrically distributed on both sides of the filter plate body and connected by bolts. The cross-sectional shape of the splicing frame is "┐". The two splicing frames are spliced ​​together to form a "U" shape. The opening of this "U" shape faces the filter plate body and fits around the perimeter of the filter plate body.

[0008] Preferably, the sealing assembly includes: An elastic frame, which is fixedly installed on the frame body and is designed as a hollow structure; Top frame, multiple top frames are fixedly installed on the bottom sidewall of the sealing groove; When the elastic frame is inserted into the sealing groove, the top frame presses against the elastic frame.

[0009] Preferably, the elastic frame has a recessed portion in the middle of one side wall near the bottom side wall of the sealing groove, and the recessed portion is adapted to the top frame.

[0010] Preferably, an arched plate is installed between the inner sidewalls of both ends of the elastic frame, the arch of the arched plate faces the bottom sidewall of the sealing groove, and a connecting frame is fixedly installed on the arch of the arched plate, the connecting frame being fixedly connected to the inner side of the recessed part of the elastic frame.

[0011] Preferably, the two arched feet of the arched plate are folded toward the inner walls of both ends of the elastic frame and abut against the inner walls of both ends of the elastic frame.

[0012] Preferably, the cross-section of the sealing groove is trapezoidal, and the width of the groove opening is smaller than the width of the groove bottom, and the angles of the two end sidewalls of the elastic frame are adapted to the angles of the two sides of the sealing groove.

[0013] Preferably, the elastic frame has a smooth transition at both ends on the side closest to the bottom wall of the sealing groove.

[0014] Preferably, the elastic frame has an arc groove on one side wall near the bottom of the sealing groove, and the two sides of the concave part are provided with an arc groove that is recessed towards the inside of the elastic frame. A clamping frame that matches the arc groove is fixedly installed on the bottom side wall of the sealing groove.

[0015] Preferably, a fixing sleeve is fixedly fitted around the outer periphery of any of the splicing frames.

[0016] The beneficial effects of this utility model are as follows: This invention achieves multi-dimensional adaptation and elastic clamping of the sealing structure under ultra-high pressure conditions through the setting of sealing groove, frame and sealing components. The top frame clamps against the concave part on the elastic frame, the clamping frame clamps against the arc groove, and the arched plate clamps against the side walls at both ends of the elastic frame. With the angle of the trapezoidal sealing groove and the side wall of the elastic frame adapted together, the sealing stress under ultra-high pressure is effectively dispersed, the sealing component is prevented from failing due to excessive local stress, and the sealing performance between the elastic frame and the sealing groove is increased, which significantly improves the sealing reliability of the filter plate and prevents filtrate leakage.

[0017] This invention achieves a stable connection between the frame and the filter plate body through the arrangement of two symmetrically distributed splicing frames and fixing sleeves. The fixing sleeves are fitted on the outside of the splicing frames, which can enhance the overall structural strength of the splicing frames, prevent the frame from deforming due to loosening at the splicing points under ultra-high pressure, improve the support stability of the frame for the filter plate body, and extend the overall service life of the filter plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of an ultra-high pressure diaphragm filter plate with a metal reinforcing frame, provided for an embodiment of this utility model.

[0020] Figure 2 This is an exploded view of the fixing sleeve and splicing frame of this utility model.

[0021] Figure 3 This is an exploded view of the splicing frame and filter plate body of this utility model.

[0022] Figure 4 This is a partial cross-sectional view of the filter plate body of this utility model.

[0023] Figure 5 This is a partial exploded cross-sectional view (first perspective) of the filter plate body of this utility model.

[0024] Figure 6 This is a partial exploded cross-sectional view (second perspective) of the filter plate body of this utility model.

[0025] Explanation of reference numerals in the attached figures: 1. Filter plate body, 2. Sealing groove, 3. Splicing frame, 4. Elastic frame, 5. Top frame, 6. Arched plate, 7. Anchoring frame, 8. Fixing sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides an ultra-high pressure diaphragm filter plate with a metal reinforcing frame, such as... Figures 1 to 6 As shown.

[0028] Example 1: An ultra-high pressure diaphragm filter plate with a metal reinforcing frame includes a filter plate body 1, which is the core load-bearing component of ultra-high pressure filtration. A frame is fixedly sleeved around the periphery of the filter plate body 1. The frame is composed of two splicing frames 3. The cross-section of the splicing frame 3 is in the shape of a "┐". The two splicing frames 3 are symmetrically distributed on both sides of the filter plate body 1 and are connected by high-strength stainless steel bolts.

[0029] After the two splicing frames 3 are spliced ​​together, their short sides of the "┐" shaped structure are opposite each other, forming a "U" shaped structure. The opening of this "U" shaped structure faces the filter plate body 1 and is fitted around the periphery of the filter plate body 1, forming a wrapping constraint on the filter plate body 1 from three directions, which can effectively disperse the stress on the edge of the filter plate body 1 under ultra-high pressure.

[0030] To further enhance the overall structural strength of the splicing frame 3 and prevent loosening at the splicing joint due to stress concentration under ultra-high pressure, a fixing sleeve 8 is fixedly fitted around the outer perimeter of any splicing frame 3. After the two splicing frames 3 are spliced ​​together, the fixing sleeve 8 can wrap and reinforce the splicing joint of the two splicing frames 3, forming a unified load-bearing whole.

[0031] When the filter press is under ultra-high pressure pressing or diaphragm pressing conditions, the filter plate body 1 is subjected to outward tension and axial clamping force. At this time, the splicing frame 3 constrains the edge end face of the filter plate body 1 to prevent it from bulging outward. The fixing sleeve 8 restricts the relative displacement of the two splicing frames 3 by wrapping the outside, and avoids the bolt connection from loosening. The three work together to solve the problem of the existing filter plate outer frame being prone to bulging and frame bursting, and also provides a stable foundation support for the subsequent installation of sealing components.

[0032] Example 2: Based on Embodiment 1, in order to improve the sealing between the splicing frame 3 and the filter plate body 1, sealing grooves 2 are provided on both sides of the filter plate body 1. The sealing grooves 2 are rectangular in shape. A sealing component that matches the sealing grooves 2 is provided on the splicing frame 3. When the splicing frame 3 is installed on the filter plate body 1, the sealing component will be inserted into the interior of the sealing grooves 2.

[0033] The sealing assembly includes an elastic frame 4, which is made of hydrogenated nitrile rubber (with high pressure resistance and aging resistance). The elastic frame 4 is designed as a hollow structure, which can provide sufficient deformation space under ultra-high pressure, while reducing the overall weight of the elastic frame 4 and avoiding additional load on the frame.

[0034] The elastic frame 4 is fixedly installed on the inner side of the folded end of the frame (a plane parallel to the side of the filter plate body 1). Its installation position corresponds completely to the sealing grooves 2 on both sides of the filter plate body 1, ensuring that the elastic frame 4 can be accurately inserted into the sealing grooves 2.

[0035] A top frame 5 is fixedly installed on the bottom side wall of the sealing groove 2, and the position of the top frame 5 corresponds to the concave part provided in the middle of the side wall of the elastic frame 4 near the bottom side wall of the sealing groove 2. When the elastic frame 4 is pressed into the sealing groove 2 along with the frame body, the top frame 5 just abuts against the concave part in the middle of the elastic frame 4, forming the first sealing contact.

[0036] On the side wall of the elastic frame 4 near the bottom of the sealing groove 2, in addition to the concave part, there are also arc grooves on both sides facing inward. On the side wall of the bottom of the sealing groove 2, a clamping frame 7 is fixed at the position corresponding to the arc groove. When the elastic frame 4 is fully inserted into the sealing groove 2, the clamping frame 7 is just embedded in the arc groove, forming a three-point clamping of the elastic frame 4 together with the top frame 5. The setting of the clamping frame 7 and the arc groove can make the concave part fit the top frame 5 better, and the two ends of the elastic frame 4 fit the two sides of the sealing groove 2 better.

[0037] Example 3: Based on Embodiment 2, in order to enhance the supporting force of the elastic frame 4 itself and further improve the sealing performance between the elastic frame 4 and the two side walls of the sealing groove 2, the cross-section of the sealing groove 2 is designed as a trapezoidal structure, wherein the width of the groove opening is smaller than the width of the groove bottom. The trapezoidal structure design can form a space that is narrow on the outside and wide on the inside. The angles of the two side walls of the elastic frame 4 are adapted to the angles of the two sides of the sealing groove 2. When the elastic frame 4 is inserted into the sealing groove 2, the inclined surface of the trapezoid can constrain the elastic frame 4, preventing the elastic frame 4 from coming out of the sealing groove 2 under ultra-high pressure, and guiding the elastic frame 4 to fit against the two side walls.

[0038] The elastic frame 4 has rounded transition structures at both ends on the side wall of the sealing groove 2 near the bottom of the groove. This reduces the frictional resistance between the elastic frame 4 and the trapezoidal slope of the sealing groove 2, ensuring that the elastic frame 4 can be smoothly inserted into the sealing groove 2.

[0039] An arched plate 6 is fixedly installed inside the elastic frame 4. The arched plate 6 is an internal support component of the elastic frame 4. Its cross-section is designed as an arched structure. The two arched feet of the arched plate 6 are folded towards the inner side walls of both ends of the elastic frame 4 and abut against the inner side walls of both ends of the elastic frame 4. A connecting frame is fixedly installed on the top of the arched plate 6. The connecting frame is fixedly connected to the inner side of the concave part on the elastic frame 4. When the top frame 5 abuts against the concave part, the connecting frame transmits the abutting force to the arched plate 6, so that the two arched feet of the arched plate 6 abut against the side walls of both ends of the elastic frame 4 toward the groove wall of the sealing groove 2. Since the groove wall of the sealing groove 2 is a slope, the side wall of the elastic frame 4 can fit better with the groove walls on both sides of the sealing groove 2, thereby further improving the sealing performance between the elastic frame 4 and the groove walls on both sides of the sealing groove 2.

[0040] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-pressure diaphragm filter plate with a metal reinforcing frame, characterized in that, include: The filter plate body (1) has rectangular sealing grooves (2) on both sides. The frame is fixedly sleeved around the periphery of the filter plate body (1), with both ends folded towards the center of the filter plate body (1). A sealing component is fixedly installed on the inner side of the folded end of the frame, and the sealing component is adapted to the sealing groove (2). When under pressure, the corresponding sealing component undergoes elastic deformation and presses against the wall of the sealing groove (2).

2. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 1, characterized in that, The frame includes: Two splicing frames (3) are symmetrically distributed on both sides of the filter plate body (1) and connected by bolts. The cross-sectional shape of the splicing frame (3) is "┐". The two splicing frames (3) are spliced ​​together to form a "U" shape. The opening of this "U" shape faces the filter plate body (1) and is fitted around the periphery of the filter plate body (1).

3. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 1, characterized in that, The sealing assembly includes: The elastic frame (4) is fixedly installed on the frame body and is designed as a hollow structure; Top frame (5), multiple top frames (5) are fixedly installed on the bottom side wall of the sealing groove (2); When the elastic frame (4) is inserted into the sealing groove (2), the top frame (5) abuts against the elastic frame (4).

4. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 3, characterized in that, The elastic frame (4) has a recessed part in the middle of the side wall near the bottom side wall of the sealing groove (2), and the recessed part is adapted to the top frame (5).

5. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 4, characterized in that, An arched plate (6) is installed between the inner walls of both ends of the elastic frame (4). The top of the arched plate (6) faces the bottom side wall of the sealing groove (2), and a connecting frame is fixedly installed on the top of the arched plate (6). The connecting frame is fixedly connected to the inner side of the concave part of the elastic frame (4).

6. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 5, characterized in that, The two arched feet of the arched plate (6) fold towards the inner walls of both ends of the elastic frame (4) and press against the inner walls of both ends of the elastic frame (4).

7. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 6, characterized in that, The cross-section of the sealing groove (2) is trapezoidal, and the width of the groove opening is smaller than the width of the groove bottom. The angles of the two end sidewalls of the elastic frame (4) are adapted to the angles of the two sides of the sealing groove (2).

8. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 7, characterized in that, The elastic frame (4) has a smooth transition at both ends on the side of the bottom wall of the sealing groove (2).

9. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 4, characterized in that, The elastic frame (4) is located on one side wall of the bottom side wall of the sealing groove (2), and the two sides of the concave part are provided with arc grooves that are recessed towards the inside of the elastic frame (4). A clamping frame (7) that is adapted to the arc groove is fixedly installed on the bottom side wall of the sealing groove (2).

10. The ultra-high pressure diaphragm filter plate with a metal reinforcing frame as described in claim 2, characterized in that, A fixing sleeve (8) is fixedly sleeved around the outer periphery of any of the splicing frames (3).

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