Multistage aeration tank

Abstract

The utility model discloses a multistage aeration tank, which relates to the technical field of aeration tanks, and comprises a box body, the upper surface of the box body is fixedly connected with a cover plate, the upper part of the right side of the box body is fixedly connected with a water inlet pipe, and the lower part of the left side of the box body is fixedly connected with a water outlet pipe. Through the arrangement of the first filtering assembly and the second filtering assembly, large impurities and small impurities in sewage are distinguished, so that the rapid blocking phenomenon is prevented, the filtering and using time of the filtering net is prolonged, through the arrangement of a threaded rod and an L-shaped scraping plate, the impurities of the filtering net can be conveniently cleaned, and the filtering effect of the filtering net is improved. The problems that an existing filter screen is short in service time, the impurity blocking speed is high, and the filter screen is troublesome to clean due to the fact that a fixing structure is frequently disassembled are solved, the service time of the filter screen is prolonged, the filter screen does not need to be cleaned due to the fact that the fixing structure does not need to be disassembled, and the practicability is high. Therefore, the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aeration tanks, in particular to a multi-stage aeration tank. Background Art

[0002] The aeration tank is a biochemical reactor designed according to the characteristics of microorganisms. The aeration tank uses the activated sludge method to treat sewage. The tank provides a certain sewage retention time to meet the oxygen required by aerobic microorganisms and the mixing conditions for full contact between sewage and activated sludge.

[0003] When using a multi-stage aeration tank to treat sewage, the aeration tanks commonly used in life usually have multi-stage treatment functions, and the common aeration tanks usually directly use relevant pipes to directly add sewage into the aeration tank for treatment. This way of treating sewage will inevitably result in a large amount of impurities being retained at the bottom of the aeration tank after long-term use. Since the common aeration tanks are relatively large in size, it is easy to cause the aeration tank to be relatively troublesome when treating impurities, resulting in the aeration tank not having a relatively good way to treat impurities, resulting in the aeration tank not having a relatively good cleanliness, which seriously affects the efficiency of the aeration tank in treating sewage.

[0004] According to patent publication number CN216404063U, a multi-stage treatment aeration tank relates to the technical field of aeration tanks, including a bottom plate, the bottom of the bottom plate is fixedly connected to a support leg, and the top of the bottom plate is fixedly connected to a box. In the utility model, impurities in sewage are filtered through a filter and remain on the filter. The sewage filtered by the filter falls to the bottom of the box and is discharged to the outside through an outlet pipe. The other end of the outlet pipe is connected to the aeration tank. The sewage discharged through the outlet pipe reaches the inside of the aeration tank for multi-stage treatment, avoiding the sewage from being directly discharged to the outside from the outlet pipe, which affects the sewage treatment. The glass on the box is used to observe the inside of the box to check whether there are many impurities retained on the filter inside the box. If there are many impurities, the filter is cleaned to reduce the probability of clutter inside the aeration tank, improve the cleanliness of the aeration tank, and improve the efficiency of the aeration tank in treating sewage. The following problems exist in the prior art:

[0005] In the above-mentioned publication number CN216404063U, the filter screen is set to filter impurities from the sewage, so that the impurities after the sewage is filtered enter the aeration tank. When there are a lot of impurities in the filter screen, the fixed structure is disassembled to clean the filter screen, resulting in the problem that the single-layer filter screen has a short service life and the impurities are blocked quickly when the amount of sewage is large, and the frequent disassembly of the fixed structure makes it troublesome to clean the filter screen; at the same time, in the publication number CN216404063U, a lot of impurities are adhered to the inner wall of the box after long-term use, resulting in the problem that the adhered impurities cannot be cleaned. Utility Model Content

[0006] The utility model provides a multi-stage aeration tank to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A multi-stage aeration tank comprises a box body, a cover plate is fixedly connected to the upper surface of the box body, a water inlet pipe is fixedly connected to the upper right side of the box body, a water outlet pipe is fixedly connected to the lower left side of the box body, a door body is arranged on the front of the box body, locking assemblies are fixedly connected to the left and right sides of the box body, a fixing block is arranged on the front side of the locking assembly, and the back side of the fixing block is fixedly connected to the surface of the door body;

[0009] Baffles are fixedly connected to the upper and lower sides of the rear side of the inner wall of the box body, and a first filter assembly is overlapped on the upper part of the interior of the box body. Openings communicating with the inside and outside are opened on the upper and lower sides of the left side of the inner wall of the baffle, and an L-shaped scraper is overlapped on the upper surface of the first filter assembly, and the rear upper surface of the L-shaped scraper overlaps the lower surface of the baffle, and a square block is fixedly connected to the front side of the upper surface of the L-shaped scraper, and the internal thread of the square block is connected to a threaded rod, the right end of the threaded rod passes through the outside of the box body, and the right end of the threaded rod is fixedly connected to a shaking handle, the rear end of the threaded rod is movably connected to a limiting block, the back side of the limiting block is fixedly connected to the inside of the baffle, and the left end of the baffle is fixedly connected to an impurity collection box.

[0010] A further improvement of the technical solution of the utility model is that: U-shaped plates are fixedly connected to the left and right sides of the lower surface of the first filter component, the lower end of the U-shaped plate is fixedly connected to the second filter component, and the left and right sides of the lower surface of the second filter component are fixedly connected to blocks, and the outer surface of the block is fixedly connected to the interior of the box.

[0011] A further improvement of the technical solution of the utility model is that the structures of the first filter component and the second filter component are the same.

[0012] A further improvement of the technical solution of the utility model is that: the first filter assembly includes a frame, the interior of the frame is fixedly connected with a filter net, and the mesh of the filter net is larger than the mesh of the second filter assembly.

[0013] A further improvement of the technical solution of the utility model is that impurity inlets communicating with the inside and outside are opened at the upper and lower parts of the back of the impurity collection box, and square pipes are fixedly connected to the front and back sides of the lower surface of the inner wall of the impurity collection box.

[0014] A further improvement of the technical solution of the utility model is that the locking assembly includes a mounting block, the front side of the mounting block overlaps with the back side of the fixing block, an insertion block is fixedly connected to the middle of the back side of the fixing block, a strip-shaped socket communicating front and back is opened in the middle of the rear side of the mounting block, and the interior of the strip-shaped socket is plugged into the outer surface of the insertion block.

[0015] A further improvement of the technical solution of the utility model is that a limit opening 1 communicating with each other up and down is opened on the rear side of the upper surface of the plug block, and a limit opening 2 communicating with each other up and down is opened on the rear side of the upper surface of the plug block, and metal plates are inserted into the inner parts of the limit openings 1 and 2.

[0016] A further improvement of the technical solution of the utility model is that bolts are threadedly connected to the upper and lower parts of the rear side of the metal plate, a bolt fixing block is threadedly connected to the rear side of the outer surface of the bolt, the outer surface of the bolt fixing block is fixedly connected to the inside of the mounting block, and the rear end of the bolt extends to the outside of the mounting block.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] 1. The utility model provides a multi-stage aeration tank, which adopts the mutual cooperation of a baffle, a first filter component, a through port, an L-shaped scraper, a threaded rod, a square block, a limit block, an impurity collection box, a baffle, a U-shaped plate, and a second filter component. Through the arrangement of the first filter component and the second filter component, larger impurities and smaller impurities in sewage are distinguished to prevent rapid clogging, thereby improving the filtering time of the filter. Through the arrangement of the threaded rod and the L-shaped scraper, it is convenient to clean the impurities in the filter, and the cleaned impurities enter the interior of the impurity collection box, solving the problems of the existing filter having a short service life, a fast clogging speed of impurities, and frequent disassembly of the fixed structure making it troublesome to clean the filter, thereby achieving the effect of improving the service life of the filter, and eliminating the need to disassemble the fixed structure to clean the filter, thereby facilitating use.

[0019] 2. The utility model provides a multi-stage aeration tank, which adopts the mutual cooperation of a mounting block, an insert block, a metal plate, a fixing block and a bolt. The bolt is rotated in the opposite direction and taken out from the metal plate, and then the metal plate is pulled out from the inside of the mounting block. The disassembly is completed by moving the door body, so that the inner wall of the box and the filter structure can be easily cleaned. The problem of a large amount of impurities adhering to the inner wall of the box after long-term use in the prior art is solved, and the effect of facilitating the disassembly of the door body and cleaning the impurities adhering to the inside by a water gun is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of the box body of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first filter assembly and the second filter assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the back structure of the impurity collection box of the utility model;

[0024] Figure 5 It is a schematic diagram of the side cross-sectional structure of the mounting block in the locking assembly of the utility model.

[0025] In the figure: 1. box body; 11. baffle; 12. first filter assembly; 121. frame; 122. filter screen; 13. through port; 14. L-shaped scraper; 15. threaded rod; 16. square block; 17. limit block; 18. impurity collection box; 181. impurity inlet; 182. square pipe; 19. baffle; 110. U-shaped plate; 111. second filter assembly; 2. cover plate; 3. water inlet pipe; 4. water outlet pipe; 5. door body; 6. locking assembly; 61. mounting block; 62. plug block; 63. metal plate; 64. bolt fixing block; 65. bolt; 7. fixing block. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 As shown, the utility model provides a multi-stage aeration tank, including a box body 1, a cover plate 2 is fixedly connected to the upper surface of the box body 1, a water inlet pipe 3 is fixedly connected to the upper right side of the box body 1, a water outlet pipe 4 is fixedly connected to the lower left side of the box body 1, a door body 5 is arranged on the front of the box body 1, a locking assembly 6 is fixedly connected to the left and right sides of the box body 1, a fixing block 7 is arranged on the front side of the locking assembly 6, and the back side of the fixing block 7 is fixedly connected to the surface of the door body 5;

[0028] When in use, the sewage is transported to the interior of the box 1 through the water inlet pipe 3, and filtered through the structure inside the box 1. After filtering, the sewage is discharged through the outlet pipe 4, and the other end of the outlet pipe 4 is connected to the aeration tank. The sewage discharged through the outlet pipe 4 reaches the interior of the aeration tank for multi-stage treatment.

[0029] like Figure 2As shown, the upper and lower parts of the rear side of the inner wall of the box body 1 are fixedly connected with a baffle 11, the upper part of the inner part of the box body 1 is overlapped with a first filter assembly 12, the upper and lower parts of the left side of the inner wall of the baffle 11 are provided with a through opening 13 that communicates with the inside and outside, the upper surface of the first filter assembly 12 is overlapped with an L-shaped scraper 14, the rear upper surface of the L-shaped scraper 14 overlaps with the lower surface of the baffle 11, and the front side of the upper surface of the L-shaped scraper 14 is fixedly connected with a square block 16, the inner thread of the square block 16 is connected with a threaded rod 15, the right end of the threaded rod 15 passes through the outside of the box body 1, and the right end of the threaded rod 15 is fixedly connected There is a shaking handle, the rear end of the threaded rod 15 is movably connected to a limit block 17, the back of the limit block 17 is fixedly connected to the inside of the baffle 11, the left end of the baffle 11 is fixedly connected to an impurity collection box 18, the left and right sides of the lower surface of the first filter component 12 are fixedly connected to U-shaped plates 110, the lower end of the U-shaped plate 110 is fixedly connected to a second filter component 111, the left and right sides of the lower surface of the second filter component 111 are fixedly connected to blocks 19, the outer surface of the block 19 is fixedly connected to the inside of the box body 1, and the first filter component 12 and the second filter component 111 have the same structure;

[0030] When sewage enters the interior of the housing 1, the first filter assembly 12 and the second filter assembly 111 are provided to filter impurities in the sewage. When there are many impurities on the filter screens of the first filter assembly 12 and the second filter assembly 111 after long-term use, first stop the water inlet pipe 3 to add sewage to the interior of the housing 1, and rotate the rocking handle to make the threaded rod 15 move inside the square block 16, so that the L-shaped scraper 14 cleans the impurities on the surface. When the L-shaped scraper 14 moves to an appropriate position, the impurities enter the impurity collection box 18 due to the provision of the through opening 13. The position of the L-shaped scraper 14 is restricted by the provision of the baffle 11, so that the L-shaped scraper 14 moves horizontally. After the impurities are pushed into the impurity collection box 18 by the L-shaped scraper 14, the threaded rod 15 is reversed by rotating the rocking handle in the opposite direction to return the L-shaped scraper to its original position. The provision of the U-shaped plate has a supporting and fixing effect on the first filter assembly 12 and the second filter assembly 111.

[0031] like Figure 3 As shown, the first filter assembly 12 includes a frame 121, and a filter screen 122 is fixedly connected to the interior of the frame 121, and the mesh of the filter screen 122 is larger than the mesh of the second filter assembly 111;

[0032] The mesh sizes of the filter nets in the first filter component 12 and the second filter component 111 are different, so that larger impurities can be separated from smaller impurities, thereby extending the service life of the filter net and preventing the phenomenon of rapid accumulation and clogging of impurities when the amount of sewage is large.

[0033] like Figure 4As shown, the impurity collection box 18 has impurity inlet ports 181 communicating with the inside and outside, both at the upper and lower parts of the back, and square pipes 182 are fixedly connected to the front and rear sides of the lower surface of the inner wall of the impurity collection box 18;

[0034] The impurity inlet 181 is provided to facilitate the cleaned impurities to enter the impurity collection box 18. When there are impurities in the impurity collection box 18, the impurities are discharged through the square pipe 182, and a container is provided below the square pipe 182 to facilitate the collection of impurities and the cleaning of impurities.

[0035] like Figure 5 As shown, the locking assembly 6 includes a mounting block 61, the front side of the mounting block 61 overlaps with the back side of the fixing block 7, an insert block 62 is fixedly connected to the middle of the back side of the fixing block 7, a strip-shaped socket communicating front and back is opened in the middle of the rear side of the mounting block 61, the interior of the strip-shaped socket is plugged into the outer surface of the insert block 62, a limiting opening 1 communicating up and down is opened on the rear side of the upper surface of the insert block 62, a limiting opening 2 communicating up and down is opened on the rear side of the upper surface of the insert block 62, a metal plate 63 is plugged into the interior of the limiting opening 1 and the limiting opening 2, bolts 65 are threadedly connected to the upper and lower sides of the rear side of the metal plate 63, a bolt fixing block 64 is threadedly connected to the rear side of the outer surface of the bolt 65, the outer surface of the bolt fixing block 64 is fixedly connected to the interior of the mounting block 61, and the rear end of the bolt 65 extends to the outside of the mounting block 61;

[0036] The bolt 65 is rotated in the opposite direction and removed from the metal plate 63, and the metal plate 63 is then pulled out from the inside of the mounting block 61. The door body 5 is moved to drive the fixing block 7 and the insert block 62 to complete the disassembly, so that the inner wall of the box body 1 and the filter structure can be cleaned easily. A sealing strip is arranged on the back of the door body 5 to prevent sewage from flowing out of the gap between the door body 5 and the box body 1, which has a sealing effect. After the door body 5 is disassembled, the inside of the box body 1 can be flushed by using a water gun.

[0037] The following is a detailed description of the working principle of the multi-stage aeration tank.

[0038] The first filter assembly 12 and the second filter assembly 111 are arranged to filter impurities in the sewage. When there are more impurities in the first filter assembly 12 and the second filter assembly 111, the threaded rod 15 is rotated to allow the L-shaped scraper 14 to clean the impurities on the surface. When the L-shaped scraper 14 moves to an appropriate position, the impurities enter the interior of the impurity collection box 18, and the bolt 65 is rotated in the opposite direction to be removed from the metal plate 63, and then the metal plate 63 is pulled out from the inside of the mounting block 61 to complete the disassembly step.

[0039] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A multi-stage aeration tank, comprising a tank (1), characterized in that: The upper surface of the box body (1) is fixedly connected to a cover plate (2), the upper right side of the box body (1) is fixedly connected to a water inlet pipe (3), the lower left side of the box body (1) is fixedly connected to a water outlet pipe (4), the front of the box body (1) is provided with a door body (5), the left and right sides of the box body (1) are fixedly connected to locking assemblies (6), the front side of the locking assembly (6) is provided with a fixing block (7), and the back side of the fixing block (7) is fixedly connected to the surface of the door body (5); The upper and lower rear sides of the inner wall of the box body (1) are fixedly connected with a baffle (11), the upper part of the interior of the box body (1) is overlapped with a first filter assembly (12), the upper and lower left sides of the inner wall of the baffle (11) are provided with a through opening (13) communicating with the inside and outside, the upper surface of the first filter assembly (12) is overlapped with an L-shaped scraper (14), the upper rear surface of the L-shaped scraper (14) is overlapped with the lower surface of the baffle (11), and the upper front side of the upper surface of the L-shaped scraper (14) is fixedly connected with the lower part of the baffle (11). A square block (16) is fixedly connected, the inner thread of the square block (16) is connected to a threaded rod (15), the right end of the threaded rod (15) passes through the outside of the box body (1), and the right end of the threaded rod (15) is fixedly connected to a shaking handle, the rear end of the threaded rod (15) is movably connected to a limit block (17), the back side of the limit block (17) is fixedly connected to the inside of the baffle (11), and the left end of the baffle (11) is fixedly connected to an impurity collection box (18).

2. A multi-stage aeration tank according to claim 1, characterized in that: The left and right sides of the lower surface of the first filter assembly (12) are fixedly connected to U-shaped plates (110), the lower end of the U-shaped plate (110) is fixedly connected to the second filter assembly (111), the left and right sides of the lower surface of the second filter assembly (111) are fixedly connected to stoppers (19), and the outer surface of the stoppers (19) is fixedly connected to the interior of the box body (1).

3. A multi-stage aeration tank according to claim 1, characterized in that: The first filter assembly (12) and the second filter assembly (111) have the same structure.

4. A multi-stage aeration tank according to claim 1, characterized in that: The first filter assembly (12) comprises a frame (121), a filter screen (122) is fixedly connected to the interior of the frame (121), and the mesh of the filter screen (122) is larger than the mesh of the second filter assembly (111).

5. The multi-stage aeration tank according to claim 1, characterized in that: Impurity inlets (181) communicating with the inside and outside are provided on the upper and lower sides of the back of the impurity collection box (18), and square pipes (182) are fixedly connected to the front and back sides of the lower surface of the inner wall of the impurity collection box (18).

6. A multi-stage aeration tank according to claim 1, characterized in that: The locking assembly (6) includes a mounting block (61), the front side of the mounting block (61) overlaps the back side of the fixing block (7), the middle part of the back side of the fixing block (7) is fixedly connected to an inserting block (62), and the middle part of the rear side of the mounting block (61) is provided with a strip-shaped socket that communicates front and back, and the interior of the strip-shaped socket is plugged into the outer surface of the inserting block (62).

7. A multi-stage aeration tank according to claim 6, characterized in that: A first limiting opening communicating with each other up and down is provided on the rear side of the upper surface of the insert block (62), and a second limiting opening communicating with each other up and down is provided on the rear side of the upper surface of the insert block (62), and metal plates (63) are inserted into the interiors of the first limiting opening and the second limiting opening.

8. The multi-stage aeration tank according to claim 7, characterized in that: Bolts (65) are threadedly connected to the upper and lower sides of the rear side of the metal plate (63); the rear side of the outer surface of the bolt (65) is threadedly connected to a bolt fixing block (64); the outer surface of the bolt fixing block (64) is fixedly connected to the inside of the mounting block (61); and the rear end of the bolt (65) extends to the outside of the mounting block (61).

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