Multi-stage automatic sludge backwashing device

Abstract

The utility model discloses a multistage sludge automatic backwashing device which comprises a backwashing device main body, a water outlet is arranged on the backwashing device main body, a filter screen frame is fixedly arranged on the inner wall of the backwashing device main body corresponding to the position of the water outlet, the top of the filter screen frame is provided with an insertion opening, and the insertion opening is communicated with the water outlet. A filter screen body is inserted into the inserting opening, and water passing openings communicating with the inserting opening are formed in the inner side and the outer side of the filter screen frame; and a locking mechanism for fixing the filter screen body is fixedly arranged on the inner wall of the backwashing device main body corresponding to the upper part of the filter screen frame. The multistage automatic sludge backwashing device is reasonable in structural design and convenient to use, a filter screen in the backwashing device is fixed in a clamping manner, when the filter screen needs to be disassembled, cleaned or replaced, a large amount of time and energy of a worker do not need to be spent on operation, the working efficiency is improved, the labor intensity of the worker is reduced, and the labor intensity of the worker is reduced. And the use requirements can be comprehensively met.

Description

Technical Field

[0001] The utility model relates to the technical field of backwashing devices, in particular to a multi-stage sludge automatic backwashing device. Background Art

[0002] During the use of sludge treatment, a biological filter is required, and during the use of the biological filter, a backwashing device is required to solve the following problems during the filtration process: 1. Suspended matter in the raw water is adsorbed by the surface of the filter material and continuously accumulates in the filter material layer. As the pores of the filter layer are gradually clogged by dirt, the filtration head loss continues to increase. When it reaches a certain limit, the filter material needs to be cleaned. Backwashing can restore the working performance of the filter and continue to work; 2. During filtration, due to the increase in head loss, the shear force of the water flow on the dirt adsorbed on the surface of the filter material becomes larger. Some of the particles move to the lower filter material under the impact of the water flow, which will eventually increase the content of suspended matter in the water and deteriorate the water quality. The problem with the prior art is that the filter screen needs to be installed at the drain outlet during use of the existing backwashing device, but the existing filter screen will consume a lot of time and energy of the user during the installation process, and it is not convenient for the user to disassemble and clean the filter screen, which brings inconvenience to the user. For this reason, we propose a multi-stage sludge automatic backwashing device to solve the problems raised in the above background technology. Utility Model Content

[0003] The utility model aims to provide a multi-stage sludge automatic backwashing device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage sludge automatic backwashing device, comprising a backwashing device body, a drain port is provided on the backwashing device body, a filter frame is fixedly installed on the inner wall of the backwashing device body at a position corresponding to the drain port, a socket is provided on the top of the filter frame, a filter body is plugged into the socket, and water ports are provided on both the inner and outer sides of the filter frame and are interconnected with the socket;

[0005] The cam is provided with a locking mechanism for fixing the filter body, and the locking mechanism comprises a fixing shell, and the fixing shell is fixedly installed on the inner wall of the backwashing device body, and a guide rod is fixedly installed in the guide groove at the top of the inner wall of the fixing shell, and a guide block is axially slidably connected to the guide rod, and a translation block is fixedly connected to the bottom of the guide block. A screw is provided inside the fixing shell, and the right end of the screw penetrates the translation block and the fixing shell in sequence and extends to the outside of the backwashing device body and is fixedly connected to a rotating handle, and a connecting rod is fixedly installed on the left side of the translation block, and the left end of the connecting rod penetrates the outside of the fixing shell and is fixedly installed with a rotating shaft, and a rotating rod is rotatably connected to the rotating shaft, and the left end of the rotating rod is fixedly connected to a tile-shaped plate, and two locking plug rods are fixedly connected to the inner side of the tile-shaped plate.

[0006] Furthermore, a limit rotation block is fixedly connected to the surface of the screw rod at a position corresponding to the backwashing device body, and the limit rotation block is movably connected to the backwashing device body.

[0007] Furthermore, a sealing ring is fixedly connected to the outer side of the fixed shell at a position corresponding to the connecting rod, and the inner side of the sealing ring is in contact with the surface of the connecting rod.

[0008] Furthermore, a blocking frame is fixedly installed on the rear side of the left side of the fixed shell corresponding to the rotating shaft, and one end of the blocking frame is in contact with the surface of the rotating rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The utility model discloses that when the filter body needs to be taken out from the socket on the filter frame for cleaning and replacement, the rotating handle is rotated from the outside, and the translation block threadedly connected to the screw drives the connecting rod to move outward under the guidance of the guide rod and the guide block. Under the connection of the rotating shaft and the rotating rod, the locking plug rod on the inner side of the tile-shaped plate can be disengaged from the plug-in connection with the filter frame and the filter body. Then, under the movable connection of the rotating shaft, the rotating rod and the tile-shaped plate can be rotated outward to disengage from the obstruction of the filter body from above, so as to take it out. Similarly, when installing, only the above steps need to be reversed. The multi-stage sludge automatic backwashing device has a reasonable structural design and is easy to use. The card connection method is used to fix the filter screen inside the backwashing device. When it needs to be disassembled, cleaned or replaced, there is no need to spend a lot of time and energy on the workers to operate, which improves work efficiency, reduces the labor intensity of the workers, and can fully meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a main structural cross-sectional view of the utility model;

[0012] Figure 2 This is a front structural cross-sectional view of the locking mechanism of the utility model;

[0013] Figure 3 It is a schematic diagram of the top view of the locking mechanism of the utility model;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the filter frame of the utility model.

[0015] In the figure: 1 backwash device body, 2 drain outlet, 3 filter frame, 4 socket, 5 filter body, 6 water outlet, 7 locking mechanism, 71 fixed shell, 72 guide rod, 73 guide block, 74 translation block, 75 screw, 76 rotating handle, 77 connecting rod, 78 rotating shaft, 79 rotating rod, 710 tile plate, 711 locking plug rod, 712 limit rotating block, 713 sealing ring, 714 blocking frame. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 A multi-stage sludge automatic backwashing device comprises a backwashing device body 1, a drain port 2 is provided on the backwashing device body 1, a filter frame 3 is fixedly installed on the inner wall of the backwashing device body 1 at a position corresponding to the drain port 2, the filter frame 3 adopts a semi-cylindrical shell structure, a socket 4 is provided on the top of the filter frame 3, a filter body 5 is plugged into the socket 4, and water ports 6 that are interconnected with the socket 4 are provided on both inner and outer sides of the filter frame 3.

[0018] A locking mechanism 7 for fixing the filter body is fixedly installed on the upper side of the filter frame 3 corresponding to the inner wall of the backwashing device body 1. The locking mechanism 7 includes a fixed shell 71, which is fixedly installed on the inner wall of the backwashing device body 1. A guide rod 72 is fixedly installed in the guide groove at the top of the inner wall of the fixed shell 71. A guide block 73 is axially slidably connected to the guide rod 72. A translation block 74 is fixedly connected to the bottom of the guide block 73. A screw 75 is provided inside the fixed shell 71. The right end of the screw 75 successively penetrates the translation block 74 and the fixed shell 71 and extends to the outside of the backwashing device body 1 and is fixedly connected with a rotating handle 76. A connecting rod 77 is fixedly installed on the left side of the translation block 74. The left end of the connecting rod 77 penetrates to the outside of the fixed shell 71 and is fixedly installed with a rotating shaft 78. A rotating rod 79 is rotatably connected to the rotating shaft 78. The left end of the rotating rod 79 is fixedly connected to a tile-shaped plate 710. Two locking plug rods 711 are fixedly connected to the inner side of the tile-shaped plate 710.

[0019] Specifically, a limit rotating block 712 is fixedly connected to the surface of the screw 75 at a position corresponding to the backwashing device body 1. The limit rotating block 712 is movably connected to the backwashing device body 1. The limit rotating block 712 limits the screw 75 to prevent it from axial movement.

[0020] Specifically, a sealing ring 713 is fixedly connected to the outer side of the fixed shell 71 at a position corresponding to the connecting rod 77 , and the inner side of the sealing ring 713 is in contact with the surface of the connecting rod 77 . The sealing ring 713 can prevent sewage sludge from penetrating from the gap between the connecting rod 77 and the fixed shell 71 .

[0021] Specifically, a blocking frame 714 is fixedly installed on the rear side of the rotating shaft 78 corresponding to the left side of the fixed shell 71, and one end of the blocking frame 714 is in contact with the surface of the rotating rod 79. The blocking frame 714 can block the rotating rod 79 from one side to prevent the rotating angle from being too large or too small, resulting in the locking rod 711 on the inner side of the tile plate 710 being unable to be inserted into the jacks on the filter frame 3 and the filter body 5.

[0022] The multi-stage sludge automatic backwashing device has a reasonable structural design and is easy to use. It adopts a snap-on method to fix the internal filter screen of the backwashing device. When it needs to be disassembled, cleaned or replaced, workers do not need to spend a lot of time and energy to operate it, which improves work efficiency, reduces workers' labor intensity, and can fully meet usage needs.

[0023] When in use, when the filter body 5 needs to be taken out from the socket 4 on the filter frame 3 for cleaning and replacement, the rotating handle 76 is rotated from the outside, and the translation block 74 threadedly connected to the screw rod 75 drives the connecting rod 77 to move outward under the guidance of the guide rod 72 and the guide block 73. Under the connection of the rotating shaft 78 and the rotating rod 79, the locking plug rod 711 on the inner side of the tile-shaped plate 710 can be disengaged from the connection with the filter frame 3 and the filter body 5. Then, under the movable connection of the rotating shaft 78, the rotating rod 79 and the tile-shaped plate 710 can be rotated outward to disengage the obstruction of the filter body 5 from above, and it can be taken out. Similarly, when installing, only the above steps need to be reversed.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage sludge automatic backwashing device, comprising a backwashing device body (1), characterized in that: The backwashing device body (1) is provided with a drain port (2), a filter frame (3) is fixedly mounted on the inner wall of the backwashing device body (1) at a position corresponding to the drain port (2), a socket (4) is provided on the top of the filter frame (3), a filter body (5) is plugged into the socket (4), and water ports (6) are provided on both the inner and outer sides of the filter frame (3) and are in communication with the socket (4); A locking mechanism (7) for fixing the filter body is fixedly installed on the inner wall of the backwashing device body (1) corresponding to the upper part of the filter frame (3), and the locking mechanism (7) comprises a fixed shell (71), and the fixed shell (71) is fixedly installed on the inner wall of the backwashing device body (1), and a guide rod (72) is fixedly installed in a guide groove at the top of the inner wall of the fixed shell (71), and a guide block (73) is axially slidably connected to the guide rod (72), and a translation block (74) is fixedly connected to the bottom of the guide block (73), and a screw (75) is provided inside the fixed shell (71). ), the right end of the screw rod (75) passes through the translation block (74) and the fixed shell (71) in sequence and extends to the outside of the backwashing device body (1) and is fixedly connected to a rotating handle (76), the left side of the translation block (74) is fixedly installed with a connecting rod (77), the left end of the connecting rod (77) passes through the outside of the fixed shell (71) and is fixedly installed with a rotating shaft (78), the rotating shaft (78) is rotatably connected to a rotating rod (79), the left end of the rotating rod (79) is fixedly connected to a tile-shaped plate (710), and the inner side of the tile-shaped plate (710) is fixedly connected to two locking plug rods (711).

2. A multi-stage sludge automatic backwashing device according to claim 1, characterized in that: A limit rotation block (712) is fixedly connected to the surface of the screw rod (75) at a position corresponding to the backwash device body (1), and the limit rotation block (712) is movably connected to the backwash device body (1).

3. A multi-stage sludge automatic backwashing device according to claim 2, characterized in that: A sealing ring (713) is fixedly connected to the outer side of the fixed shell (71) at a position corresponding to the connecting rod (77), and the inner side of the sealing ring (713) is in contact with the surface of the connecting rod (77).

4. A multi-stage sludge automatic backwashing device according to claim 3, characterized in that: A blocking frame (714) is fixedly installed on the rear side of the left side of the fixed shell (71) corresponding to the rotating shaft (78), and one end of the blocking frame (714) is in contact with the surface of the rotating rod (79).

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