Flat sheet membrane filtering device convenient for replacing membrane component

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a flat sheet membrane filtering device convenient for replacing a membrane component. A cover plate is arranged on the upper side of the filter box, connecting pipes are fixed to the left side wall and the right side wall of the filter box in a penetrating mode, and a plurality of membrane frames are arranged in the filter box at equal intervals. The fixed rails are fixed to the lower surface of the cover plate at equal intervals, connecting strips are arranged in the fixed rails in a sliding mode, and the lower sides of the connecting strips are fixed to the outer top wall of the film frame in a one-to-one correspondence mode; the electric push rods are embedded in the front side wall and the rear side wall of the filter box in a pairwise bilateral symmetry mode, and piston rods of the electric push rods penetrate through the top wall of the filter box and then are fixedly connected with the cover plate; the mounting mechanisms are arranged in the film frame in a one-to-one correspondence manner and are connected with film bodies in the film frame; the limiting mechanism is arranged in the cover plate and is connected with the plurality of connecting strips; the membrane frame can be taken out without a hanging bracket, meanwhile, the membrane body in the membrane frame can be replaced without a tool, and operation is easy, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a flat membrane filtering device which is convenient for replacing membrane components. Background Art

[0002] As the core component of the submerged membrane bioreactor, the flat membrane's reliable stability directly determines the application of the membrane bioreactor. When it is working, it is installed in the filter tank. Under the action of static pressure difference or self-priming pump, the mixed liquid passes through the flat membrane, using its uniform pore size to intercept particles, bacteria, etc. in the water, so that they cannot pass through the filter membrane and be removed. After a period of use, the flat membrane filter plate needs to be replaced and cleaned. When replacing, lifting equipment or manual removal of the membrane frame from the membrane tank is required. Then, the flat membrane fixed on the membrane frame is removed by tools for replacement. Since the operations of removing the membrane frame and disassembling the flat membrane are relatively cumbersome, the work efficiency is reduced. Utility Model Content

[0003] The purpose of the present invention is to provide a flat membrane filtration device with a reasonable design, easy use and convenient membrane component replacement in view of the defects and shortcomings of the existing technology, which can effectively solve the defects of the above-mentioned existing technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises a filter box, a cover plate, a connecting pipe and a membrane frame, wherein the cover plate is provided on the upper side of the filter box, connecting pipes are fixedly passed through the left and right side walls of the filter box, and a plurality of membrane frames are equidistantly provided inside the filter box; it also comprises:

[0005] Fixed rails, there are several fixed rails, and they are fixed on the lower surface of the cover plate at equal distances. Connecting strips are slidably provided inside the fixed rails, and the lower sides of the connecting strips are fixed on the outer top wall of the membrane frame in a one-to-one correspondence;

[0006] There are four electric push rods, and two of them are symmetrically embedded in the front and rear side walls of the filter box. The piston rods of the electric push rods pass through the top wall of the filter box and are fixedly connected to the cover plate;

[0007] There are several mounting mechanisms, each of which is arranged in a one-to-one correspondence in the membrane frame, and the mounting mechanisms are connected to the membrane body in the membrane frame;

[0008] There are several limiting mechanisms, which are equidistantly arranged in the cover plate, and the limiting mechanisms are connected to the connecting strips in a one-to-one correspondence;

[0009] Through the above technical solution, sewage enters the filter box from the connecting pipe on one side, and is filtered through the membrane bodies in several membrane frames. When the membrane body needs to be replaced, the electric push rod is started, and the electric push rod drives the cover plate to move upward, and the cover plate drives the fixed rail, the connecting strip and the membrane frame to move upward, so that the membrane frame is located on the upper side of the filter box, and then the membrane body is removed from the membrane frame through the installation mechanism, and then the new membrane body is installed in the membrane frame through the installation mechanism, thereby speeding up the replacement speed. When the membrane frame needs to be replaced, the limiting mechanism is released to separate the connecting strip from the fixed rail, thereby facilitating the removal of the membrane frame.

[0010] As a further improvement of the present invention, the mounting mechanism includes:

[0011] The mounting rollers are multiple and are equally and equidistantly embedded in the embedding grooves on the upper and lower side walls of the membrane frame. The shafts on the upper and lower sides of the mounting rollers are respectively screwed into the embedding grooves through bearings. The shafts at one end of two adjacent mounting rollers are connected by a synchronous wheel transmission assembly.

[0012] Linkage rods, there are two linkage rods, which are symmetrically embedded in the left and right sides and screwed into one side wall of the membrane frame through bearings. The upper and lower ends of the linkage rods are respectively fixed on the shaft rods of the adjacent rollers;

[0013] There are four linkage gears, and they are arranged in the top wall of the film frame after being meshed with each other. The linkage gears on both sides are respectively sleeved and fixed on the shafts on the adjacent left and right symmetrical mounting rollers. The two linkage gears on the middle side are screwed into the top wall of the film frame through the shafts;

[0014] The mounting motor is embedded and fixed in one side of the film frame, and the output shaft of the mounting motor is fixed on the shaft on the upper side of the adjacent mounting roller;

[0015] When the cam is in the air, the gears are connected to the gears of the driver and the control wheel, and the transmission gear of the driver is turned to the left and right, so that the cam can be turned to the left and right, so that the cam can be turned to the right and left ...

[0016] As a further improvement of the present invention, a No. 1 sealing ring is provided on both sides of the interior of the membrane frame, the inner side of the No. 1 sealing ring is located on the outer side of the embedding groove, and the No. 1 sealing ring is provided in contact with both sides of the membrane body;

[0017] The above technical solution can increase the sealing performance between the membrane frame and the membrane body.

[0018] As a further improvement of the present invention, a No. 2 sealing ring is fixed on the top wall of the filter box, the No. 2 sealing ring is arranged in conflict with the cover plate, and the inner and outer peripheral walls of the No. 2 sealing ring are respectively arranged in the same plane as the inner and outer peripheral walls of the filter box;

[0019] By means of the above technical solution, the sealing between the cover plate and the filter box can be increased, thereby preventing the liquid to be filtered from splashing out.

[0020] As a further improvement of the present invention, the limiting mechanism includes:

[0021] There are two limit plates, and they are symmetrically arranged on both sides of the fixed rail. Several limit rods are fixed at equal distances on one side wall of the limit plate adjacent to the fixed rail. After the limit rods pass through the fixed rail, they are inserted into the limit grooves on the side walls of the connecting strips;

[0022] There are four movable racks, and two of them are symmetrically fixed on the top wall of the limit plate. The movable racks are slidably arranged in the slide groove on the lower surface of the cover plate. A return spring is symmetrically fixed on one side wall of the vertical plate of the movable rack. The return spring is fixed in the slide groove on the lower surface of the cover plate.

[0023] Pushing the inclined wedges, there are two of them, and after passing through the upper side wall of the cover plate symmetrically in front and back, they come into contact with the horizontal plates of the movable racks on both sides;

[0024] Through the above technical solution, when the connecting bar needs to be separated from the fixed rail, the inclined wedge is pressed downward. In the process of pushing the inclined wedge downward, the movable frames on both sides are pushed outward, which drives the limit plate to move to the side away from the fixed rail. The limit plate drives the limit rod to move outward until it is separated from the connecting bar, so that the connecting bar can be moved out of the fixed rail.

[0025] As a further improvement of the present invention, sliding blocks are fixed on both side walls of the pushing wedge, and the sliding blocks are slidably arranged in the sliding grooves on both sides of the cover plate; this can prevent the pushing wedge from falling out of the cover plate.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the flat membrane filtration device described in the present invention is convenient for replacing membrane components. The membrane frame can be taken out without using a hanger, and the membrane body in the membrane frame can be replaced without the aid of tools. The operation is simple and convenient. The present invention has the advantages of reasonable setting and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the present utility model.

[0028] Figure 2 This is an exploded view of the present invention.

[0029] Figure 3 This is an exploded view of the installation mechanism and membrane frame in the utility model.

[0030] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0031] Figure 5 This is an exploded view of the cover plate, fixed rail, connecting bar and limiting mechanism in the utility model.

[0032] Figure 6 for Figure 5 Enlarged view of part B in the middle.

[0033] Description of reference numerals:

[0034] Filter box 1, cover plate 2, connecting pipe 3, membrane frame 4, fixed rail 5, connecting bar 6, electric push rod 7, mounting mechanism 8, mounting roller 8-1, linkage rod 8-2, linkage gear 8-3, mounting motor 8-4, limiting mechanism 9, limiting plate 9-1, limiting rod 9-2, movable frame 9-3, return spring 9-4, pushing wedge 9-5, No. 1 sealing ring 10, No. 2 sealing ring 11, sliding block 12. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0036] Example 1:

[0037] like Figures 1-6 As shown, this embodiment includes a filter box 1, a cover plate 2, a connecting pipe 3 and a membrane frame 4. The cover plate 2 is provided on the upper side of the filter box 1. The connecting pipe 3 is welded and fixed on both the left and right side walls of the filter box 1. Several membrane frames 4 are equidistantly provided inside the filter box 1. A No. 2 sealing ring 11 is adhered and fixed on the top wall of the filter box 1. The No. 2 sealing ring 11 is set in conflict with the cover plate 2. The inner and outer peripheral walls of the No. 2 sealing ring 11 are respectively arranged in the same plane as the inner and outer peripheral walls of the filter box 1, which can increase the sealing between the cover plate 2 and the filter box 1 and prevent the liquid to be filtered from splashing. It also includes:

[0038] Fixed rails 5, there are several fixed rails 5, and they are welded and fixed on the lower surface of the cover plate 2 at equal distances. Connecting strips 6 are slidably provided inside the fixed rails 5, and the lower sides of the connecting strips 6 are fixed to the outer top wall of the membrane frame 4 by bolts in a one-to-one correspondence;

[0039] Electric push rods 7, there are four electric push rods 7, and two of them are symmetrically embedded in the front and rear side walls of the filter box 1. After the piston rods of the electric push rods 7 pass through the top wall of the filter box 1, they are fixedly connected to the cover plate 2;

[0040] The mounting mechanism 8 is multiple and is disposed in a one-to-one correspondence within the membrane frame 4. The mounting mechanism 8 is connected to the membrane body within the membrane frame 4.

[0041] The limiting mechanisms 9 are multiple and are equidistantly arranged in the cover plate 2 . The limiting mechanisms 9 are connected to the connecting strips 6 in a one-to-one correspondence.

[0042] Example 2:

[0043] See Figure 2-4 As shown, based on Example 1, the mounting mechanism 8 includes:

[0044] The mounting rollers 8-1 are several in number and are equally and equidistantly embedded in the embedding grooves of the upper and lower side walls of the membrane frame 4. The shafts on the upper and lower sides of the mounting rollers 8-1 are respectively screwed into the embedding grooves through bearings, and the shafts at one end of two adjacent mounting rollers 8-1 are connected by a synchronous wheel transmission assembly; a No. 1 sealing ring 10 is provided on both sides of the interior of the membrane frame 4, and the inner side of the No. 1 sealing ring 10 is located on the outer side of the embedding groove. The No. 1 sealing ring 10 is arranged to conflict with both sides of the membrane body, which can increase the sealing between the membrane frame 4 and the membrane body;

[0045] Linkage rods 8-2, there are two linkage rods 8-2, and they are symmetrically embedded in one side wall of the film frame 4 and screwed together through bearings. The upper and lower ends of the linkage rods 8-2 are respectively welded and fixed to the shaft of the adjacent mounting roller 8-1;

[0046] Linkage gears 8-3, there are four linkage gears 8-3, and they are arranged in the top wall of the film frame 4 after being meshed with each other. The linkage gears 8-3 on both sides are respectively sleeved and welded to the shafts on the adjacent left and right symmetrical mounting rollers 8-1. The two linkage gears 8-3 on the middle side are screwed into the top wall of the film frame 4 through the shafts;

[0047] The mounting motor 8-4 is embedded and fixed in the lower right side of the film frame 4, and the output shaft of the mounting motor 8-4 is fixed on the shaft rod on the upper side of the adjacent mounting roller 8-1.

[0048] Example 3:

[0049] See Figure 1-2 、 Figure 5-6 As shown, based on Example 1, the limiting mechanism 9 includes:

[0050] Limiting plates 9-1, there are two limiting plates 9-1, and they are symmetrically arranged on both sides of the fixed rail 5. Several limiting rods 9-2 are welded and fixed at equal intervals on one side wall of the limiting plate 9-1 adjacent to the fixed rail 5. After the limiting rods 9-2 pass through the fixed rail 5, they are inserted into the limiting grooves on the side walls of the connecting bar 6;

[0051] There are four movable racks 9-3, and two of them are symmetrically fixed on the top wall of the limit plate 9-1. The movable racks 9-3 are slidably arranged in the slide groove on the lower surface of the cover plate 2. A return spring 9-4 is welded and fixed symmetrically on one side wall of the vertical plate of the movable rack 9-3. The return spring 9-4 is welded and fixed in the slide groove on the lower surface of the cover plate 2.

[0052] Push the inclined wedge 9-5, there are two of them, and after they pass through the upper side wall of the cover plate 2 symmetrically front and back, they come into contact with the horizontal plates of the movable frames 9-3 on the adjacent two sides. Sliding blocks 12 are welded and fixed on both side walls of the pushing inclined wedge 9-5, and the sliding blocks 12 are slidably set in the sliding grooves on both sides of the cover plate 2; this can prevent the pushing inclined wedge 9-5 from falling out of the cover plate 2.

[0053] When the present invention is used, sewage enters the filter box 1 from the connecting pipe 3 on one side, and is filtered by the membrane bodies in the membrane frames 4. When the membrane body needs to be replaced, the electric push rod 7 is started, and the electric push rod 7 drives the cover plate 2 to move upward, and the cover plate 2 drives the fixed rail 5, the connecting strip 6 and the membrane frame 4 to move upward, so that the membrane frame 4 is located on the upper side of the filter box 1, and then the mounting motor 8-4 is started, and the mounting roller 8-1 connected to the mounting motor 8-4 rotates. The mounting roller 8-1 drives the several mounting rollers 8-1 connected to each other on this side to rotate through the cooperation of the synchronous wheel transmission assembly, and the mounting roller 8-1 on the lower side drives the mounting roller 8-1 on the upper side to rotate through the corresponding linkage rod 8-2. When the mounting roller 8-1 equipped with the linkage gear 8-3 rotates, the four linkage gears 8-3 cooperate to make the corresponding mounting rollers 8-1 on the other side rotate in the opposite direction, so that the left and right sides rotate correspondingly. The mounting roller 8-1 rotates in the opposite direction, and then one side of the upper and lower sides of the membrane body is clamped into the two opposite mounting rollers 8-1. The mounting roller 8-1 drives the membrane body to move into the membrane frame 4 during the rotation process. After the installation is completed, the membrane body is limited by the mounting roller 8-1 without affecting the filtering effect of the membrane body. When it needs to be disassembled, the membrane body can be removed by simply rotating the mounting motor 8-4 in the opposite direction, saving time and effort, thereby speeding up the replacement speed.

[0054] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:

[0055] 1. The electric push rod 7 is used to drive the cover plate 2 to move up and down, which can drive the film frame 4 up and down. The film frame 4 can be taken out without using a hanger, saving time and effort;

[0056] 2. The membrane body can be driven to move in the membrane frame 4 by the installation mechanism 8, so that the membrane body in the membrane frame 4 can be replaced without the help of tools, which is simple and convenient to operate;

[0057] 3. The membrane frame 4 is fixed to the cover plate 2 through the limiting mechanism 9, the fixing rail 5 and the connecting strip 6, and the disassembly and assembly are quick, and the stability of the membrane frame 4 after installation is increased;

[0058] 4. A No. 1 sealing ring 10 is provided on both sides of the membrane frame 4 , which can increase the sealing between the membrane frame 4 and the membrane body and prevent sewage from being embedded in the membrane frame 4 .

[0059] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A flat membrane filtration device that facilitates membrane assembly replacement, comprising a filter box (1), a cover plate (2), a connecting pipe (3) and a membrane frame (4), wherein the cover plate (2) is provided on the upper side of the filter box (1), the connecting pipe (3) is fixedly passed through the left and right side walls of the filter box (1), and a plurality of membrane frames (4) are equidistantly provided inside the filter box (1); the characteristics are: It also contains: Fixed rails (5), there are several fixed rails (5), and they are fixed on the lower surface of the cover plate (2) at equal distances. Connecting strips (6) are slidably provided inside the fixed rails (5), and the lower sides of the connecting strips (6) are fixed on the outer top wall of the film frame (4) in a one-to-one correspondence; Electric push rods (7), there are four electric push rods (7), and two of them are symmetrically embedded in the front and rear side walls of the filter box (1), and the piston rods of the electric push rods (7) pass through the top wall of the filter box (1) and are fixedly connected to the cover plate (2); A mounting mechanism (8), wherein the mounting mechanisms (8) are multiple and are arranged in a one-to-one correspondence in the membrane frame (4), and the mounting mechanisms (8) are connected to the membrane body in the membrane frame (4); The limiting mechanism (9) is a plurality of limiting mechanisms (9) which are equidistantly arranged in the cover plate (2), and the limiting mechanisms (9) are connected to the connecting strips (6) in a one-to-one correspondence.

2. A flat membrane filtration device that facilitates membrane assembly replacement according to claim 1, characterized in that: The mounting mechanism (8) comprises: The mounting rollers (8-1) are multiple and are equally and equidistantly embedded in the embedding grooves on the upper and lower side walls of the film frame (4). The shafts on the upper and lower sides of the mounting rollers (8-1) are respectively screwed into the embedding grooves through bearings, and the shafts at one end of two adjacent mounting rollers (8-1) are connected through a synchronous wheel transmission assembly. Linkage rods (8-2), there are two linkage rods (8-2), which are symmetrically embedded in the side wall of the membrane frame (4) and screwed together through bearings. The upper and lower ends of the linkage rods (8-2) are respectively fixed on the shafts of the adjacent mounting rollers (8-1); Linkage gears (8-3), there are four linkage gears (8-3), and they are arranged in the top wall of the film frame (4) after being meshed with each other in pairs, the linkage gears (8-3) on both sides are respectively sleeved and fixed on the shafts on the adjacent left and right symmetrical mounting rollers (8-1), and the two linkage gears (8-3) on the middle side are screwed into the top wall of the film frame (4) through the shafts; The mounting motor (8-4) is embedded in and fixed on one side of the film frame (4), and the output shaft of the mounting motor (8-4) is fixed on the shaft rod on the upper side of the adjacent mounting roller (8-1).

3. A flat membrane filtration device that facilitates membrane assembly replacement according to claim 2, characterized in that: A No. 1 sealing ring (10) is provided on both sides of the interior of the membrane frame (4), the inner side of the No. 1 sealing ring (10) is located on the outer side of the embedding groove, and the No. 1 sealing ring (10) is arranged to contact both sides of the membrane body.

4. The flat membrane filtration device for easy membrane assembly replacement according to claim 1, characterized in that: A No. 2 sealing ring (11) is fixed on the top wall of the filter box (1), and the No. 2 sealing ring (11) is arranged to be in conflict with the cover plate (2). The inner and outer peripheral walls of the No. 2 sealing ring (11) are respectively arranged in the same plane as the inner and outer peripheral walls of the filter box (1).

5. The flat membrane filtration device for easy membrane assembly replacement according to claim 1, characterized in that: The limiting mechanism (9) comprises: There are two limit plates (9-1), and the limit plates (9-1) are symmetrically arranged on both sides of the fixed rail (5). A plurality of limit rods (9-2) are fixed at equal intervals on a side wall of the limit plate (9-1) adjacent to the fixed rail (5). After the limit rods (9-2) pass through the fixed rail (5), they are inserted into the limit grooves on the side wall of the connecting bar (6); The movable racks (9-3) are four in number, and are fixed on the top wall of the limit plate (9-1) in pairs symmetrically in front and back. The movable racks (9-3) are slidably arranged in a slide groove on the lower surface of the cover plate (2). A return spring (9-4) is fixed symmetrically in front and back on one side wall of the vertical plate of the movable rack (9-3). The return spring (9-4) is fixed in the slide groove on the lower surface of the cover plate (2). There are two pushing wedges (9-5), which pass through the upper side wall of the cover plate (2) symmetrically in front and back and then come into contact with the horizontal plates of the movable frames (9-3) on both sides.

6. A flat membrane filtration device that facilitates membrane assembly replacement according to claim 5, characterized in that: Sliding blocks (12) are fixed on both side walls of the pushing wedge (9-5), and the sliding blocks (12) are slidably arranged in the sliding grooves on both sides of the cover plate (2).

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