Biological filtration device for short-cut nitrification reaction

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a biological filtration device for short-cut nitrification reaction, which comprises a sewage treatment tank, two partition plates are fixedly mounted in the sewage treatment tank, a plurality of water through holes are formed in one side of each partition plate, and a plurality of positioning holes are formed in the top sides of the two partition plates. The utility model has the advantages that through the matched arrangement of the partition plate, the water through hole, the mounting plate, the limiting slide block, the filler screen frame, the positioning fixture block, the connecting plate, the membrane frame and the MBR membrane, the double MBR membranes are added to treat sewage on the basis that the existing filler is used for treating the sewage; in the sewage treatment process, the sewage is firstly treated through the MBR membrane, then the sewage is treated through the filler in the filler screen frame, and finally the sewage is treated through the MBR membrane, so that the sewage treatment frequency is increased, impurities in the sewage can be intercepted, and the sewage treatment efficiency is improved. Therefore, the sewage treatment effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a short-range nitrification reaction biological filtering device. Background Art

[0002] Three different biological reactions usually occur in the sewage denitrification process, namely aerobic oxidation of organic matter or carbon-containing organic matter, nitrification reaction and denitrification reaction. Nitrification reaction biological filtration is a method that uses the degradation action of microorganisms (mainly nitrifying bacteria) to convert organic matter and pollutants such as ammonia nitrogen in wastewater into relatively stable inorganic substances, and effectively removes pollutants through a biological filtration system. A nitrification reaction biological filtration device is required when conducting short-range nitrification reaction biological filtration.

[0003] Nitrification reaction biological filtration devices generally provide space for microorganisms to attach and grow by filling biological carriers with large surface areas such as fillers when treating sewage, thereby utilizing the degradation of organic matter and pollutants such as ammonia nitrogen in the wastewater by microorganisms. However, most of these methods only treat sewage through biological carriers, resulting in poor sewage treatment effects. Therefore, a short-range nitrification reaction biological filtration device is needed to solve the above problem. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a short-range nitrification reaction biological filtration device to solve the problems mentioned in the background technology and overcome the shortcomings of the existing technology.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present invention provides a short-range nitrification reaction biological filtration device, including a sewage treatment tank, wherein two partitions are fixedly installed inside the sewage treatment tank, one side of the two partitions is provided with a plurality of water holes, the top sides of the two partitions are provided with a plurality of positioning holes, the top sides of the two partitions are overlapped with a plurality of mounting plates, the top sides of the mounting plates are provided with two limiting slides, the inner walls of the two limiting slides are slidably connected with a T-shaped limiting slider, the bottom ends of the two limiting sliders are fixedly connected with a filler mesh frame, one side of the mounting plate is provided with two positioning slots, the inner walls of the two positioning slots are clamped with positioning blocks, one end of the two positioning blocks is fixedly connected with a connecting plate, the two connecting plates are provided with a fixing structure, the bottom sides of the two connecting plates are fixedly connected with a membrane frame, the interiors of the two membrane frames are fixedly installed with MBR membranes, and the sewage treatment tank is connected to a delivery pump through a pipeline.

[0007] Preferably, any of the above schemes includes a fixed spring, a movable block and a fixed plug rod, one side of the connecting plate is fixedly connected to a fixed spring, one end of the fixed spring is fixedly connected to a movable block, the side of the movable block close to the connecting plate is fixedly connected to a fixed plug rod, one side of the two partitions is provided with a fixed socket, and the bottom side of the mounting plate is fixedly connected to two positioning rods.

[0008] Preferably, from any of the above solutions, the width of the filler mesh frame is equal to the minimum distance between two adjacent partitions, the height of the filler mesh frame is equal to the height of the partition, and fillers are provided inside the filler mesh frame.

[0009] Preferably, from any of the above solutions, the positioning block and the positioning slot are both T-shaped, and the positioning block and the positioning slot are adapted in size.

[0010] Preferably, according to any of the above solutions, the filler mesh frame is located between two partitions, and the partition is located between two membrane frames.

[0011] Preferably, from any of the above schemes, a portion of the fixing rod is located inside the fixing spring, the fixing rod passes through the connecting plate, the fixing rod is slidably connected to the connecting plate, and the fixing rod is adapted to the size of the fixing hole.

[0012] Preferably, according to any of the above solutions, the number of the positioning rods corresponds to the number of the positioning holes, and the sizes of the positioning rods and the positioning holes are adapted to each other.

[0013] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0014] 1. Through the coordinated arrangement of partitions, water holes, mounting plates, limit sliders, filler mesh frames, positioning blocks, connecting plates, membrane frames and MBR membranes, a double MBR membrane is added to treat sewage on the basis of the existing filler treatment. In the process of sewage treatment, the sewage is first treated by an MBR membrane, and then the sewage is treated by the filler inside the filler mesh frame, and finally by an MBR membrane. The number of sewage treatment times is increased, and impurities in the sewage can be intercepted, thereby making the sewage treatment effect better.

[0015] 2. Through the coordinated arrangement of the partition, positioning hole, mounting plate, limiting slide groove, limiting slider, positioning card slot, positioning card block, fixing structure, fixing socket and positioning rod, the installation and removal of the membrane frame, mounting plate and filler mesh frame are relatively simple, thereby facilitating the replacement of the MBR membrane and the filler located inside the filler mesh frame, and making it easy to move the filler mesh frame out from between the two partitions, thereby facilitating the cleaning of the filler mesh frame and the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model without the installation plate assembled;

[0019] Figure 4 This is a schematic structural diagram of the mounting plate and its connecting components of the utility model;

[0020] Figure 5 This is a structural diagram of the mounting plate of the utility model;

[0021] Figure 6 This is a schematic structural diagram of the connecting plate and its connecting components of the utility model;

[0022] Figure 7 This is a structural diagram of the filler mesh frame of the utility model.

[0023] In the figure: 1-sewage treatment tank, 2-partition, 3-water hole, 4-positioning hole, 5-mounting plate, 6-limiting slide, 7-limiting slider, 8-filling mesh frame, 9-positioning slot, 10-positioning block, 11-connecting plate, 12-fixed structure, 1201-fixing spring, 1202-movable block, 1203-fixed plug rod, 13-membrane frame, 14-MBR membrane, 15-delivery pump, 16-fixed socket, 17-positioning rod. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0025] like Figures 1 to 7As shown, a short-range nitrification reaction biological filtration device includes a sewage treatment tank 1, two partitions 2 are fixedly installed inside the sewage treatment tank 1, two partitions 2 form a group, and multiple groups of partitions 2 can be set inside the sewage treatment tank 1, one side of the two partitions 2 is provided with a plurality of water holes 3, the top sides of the two partitions 2 are provided with a plurality of positioning holes 4, the top sides of the two partitions 2 are overlapped with a plurality of mounting plates 5, the top sides of the mounting plates 5 are provided with two limiting chutes 6, the inner walls of the two limiting chutes 6 are slidably connected with a T-shaped limiting slider 7, the bottom ends of the two limiting sliders 7 are fixedly connected with a filler mesh frame 8, one side of the mounting plate 5 is provided with two positioning card grooves 9, the inner walls of the two positioning card grooves 9 are clamped with a positioning card block 10, one end of the two positioning card blocks 10 are fixedly connected with a connecting plate 11, and the two connecting plates 11 are provided with a fixing structure 12. The bottom side of 11 is fixedly connected with a membrane frame 13, and the interior of the two membrane frames 13 is fixedly installed with an MBR membrane 14. The sewage treatment tank 1 is connected to a delivery pump 15 through a pipeline. When the short-range nitrification reaction biological filtration operation is performed, the sewage enters the interior of the sewage treatment tank 1, and the sewage first passes through an MBR membrane 14, and the sewage is treated and filtered by an MBR membrane 14. The sewage after one treatment will pass through the water hole 3 and contact the filler mesh frame 8, and the sewage is filtered by the filler mesh frame 8. The filtered sewage passes through the filler inside the filler mesh frame 8, and the sewage is biologically filtered through the filler. The sewage after passing through the filler is treated and filtered again through an MBR membrane 14, and the delivery pump 15 is started in this process to discharge the filtered water, and the flow rate of the sewage inside the sewage treatment tank 1 can be accelerated.

[0026] As an optional technical solution of the present invention, the fixed structure 12 includes a fixed spring 1201, a movable block 1202 and a fixed plug rod 1203. One side of the connecting plate 11 is fixedly connected to the fixed spring 1201, one end of the fixed spring 1201 is fixedly connected to the movable block 1202, and the movable block 1202 is fixedly connected to the fixed plug rod 1203 on the side close to the connecting plate 11. A fixed socket 16 is provided on one side of the two partitions 2, and two positioning rods 17 are fixedly connected to the bottom side of the mounting plate 5. When connecting the filler mesh frame 8 and the mounting plate 5, the limit slider 7 is passed through the inside of the limit slide 6 and the limit slider 7 is tightly fitted with the inner wall of the end of the limit slide 6. The filler mesh frame 8 is supported and connected by the limit slider 7. When connecting the membrane frame 13 and the mounting plate 5, the positioning block 10 is stuck in the positioning slot 9 When the stuffing net frame 8 is placed between the two partitions 2, first pull the movable block 1202 to drive the fixed plug rod 1203 to move, so that the fixed plug rod 1203 is retracted into the inside of the connecting plate 11. At this time, the fixing spring 1201 is in a stretched state. Then the stuffing net frame 8 is placed between the two partitions 2, and the positioning rod 17 is inserted into the inside of the positioning hole 4, so that the bottom side of the mounting plate 5 is in contact with the top side of the partition 2. At this time, the fixed plug rod 1203 corresponds to the position of the fixed socket 16, and then slowly release the movable block 1202. Under the reaction force of the fixing spring 1201, the fixed plug rod 1203 is inserted into the inside of the fixed socket 16, and the connecting plate 11 is fixed. At this time, the position of the mounting plate 5 no longer moves and the mounting plate 5 is fixed, and the stuffing net frame 8 is stably placed inside the two partitions 2.

[0027] As an optional technical solution of the present invention, the width of the filler mesh frame 8 is equal to the minimum distance between two adjacent partitions 2, the height of the filler mesh frame 8 is equal to the height of the partition 2, the filler mesh frame 8 is limited so that the position of the filler mesh frame 8 no longer moves, and filler is arranged inside the filler mesh frame 8.

[0028] As an optional technical solution of the present invention, the positioning block 10 and the positioning slot 9 are both T-shaped, and the positioning block 10 is adapted to the size of the positioning slot 9. The positioning block 10 and the positioning slot 9 make the connection between the connecting plate 11 and the mounting plate 5 more firmly.

[0029] As an optional technical solution of the present invention, the filler mesh frame 8 is located between two partitions 2 , and the partition 2 is located between two film frames 13 .

[0030] As an optional technical solution of the present invention, a part of the fixed rod 1203 is located inside the fixed spring 1201, the fixed rod 1203 passes through the connecting plate 11, the fixed rod 1203 is slidingly connected to the connecting plate 11, and the fixed rod 1203 is adapted to the size of the fixed socket 16, so that the fixed rod 1203 can move smoothly and be inserted into the interior of the fixed socket 16.

[0031] As an optional technical solution of the present invention, the number of the positioning rods 17 corresponds to the number of the positioning holes 4 , and the sizes of the positioning rods 17 and the positioning holes 4 are adapted to each other, so that the positioning rods 17 can be stably connected to the positioning holes 4 .

[0032] A short-range nitrification reaction biological filtration device, the working principle is as follows:

[0033] The sewage enters the interior of the sewage treatment tank 1, and first passes through an MBR membrane 14, and is treated and filtered by the MBR membrane 14. The sewage after one treatment will pass through the water hole 3 and contact the filler mesh frame 8, and the sewage will be filtered by the filler mesh frame 8. The filtered sewage passes through the filler inside the filler mesh frame 8, and is biologically filtered by the filler. The sewage treated by the filler passes through an MBR membrane 14 again for treatment and filtration.

[0034] In summary, the short-range nitrification reaction biological filtration device, through the coordination arrangement of the partition plate 2, the water hole 3, the mounting plate 5, the limiting slider 7, the filler mesh frame 8, the positioning block 11, the connecting plate 11, the membrane frame 13 and the MBR membrane 14, adds a double MBR membrane 14 to treat the sewage on the basis of the existing filler. In the process of sewage treatment, the sewage is first treated by an MBR membrane 14, and then the sewage is treated by the filler inside the filler mesh frame 8, and finally the sewage is treated by an MBR membrane 14, which increases the sewage treatment. times, and can intercept impurities in sewage, so that the sewage treatment effect is better. Through the coordinated arrangement of the partition 2, positioning hole 4, mounting plate 5, limiting slide groove 6, limiting slider 7, positioning card slot 9, positioning card block 10, fixing structure 12, fixing socket 16 and positioning rod 17, the installation and disassembly of the membrane frame 13, mounting plate 5 and filler net frame 8 are relatively simple, so that it is convenient to replace the MBR membrane 14 and the filler located inside the filler net frame 8, and it is convenient to move the filler net frame 8 out from between the two partitions 2, so as to facilitate the cleaning operation of the filler net frame 8 and the partition 2.

Claims

1. A short-range nitrification biological filtration device, characterized by: The invention comprises a sewage treatment tank (1), wherein two partitions (2) are fixedly installed inside the sewage treatment tank (1), a plurality of water holes (3) are provided on one side of the two partitions (2), a plurality of positioning holes (4) are provided on the top sides of the two partitions (2), a plurality of mounting plates (5) are overlapped on the top sides of the two partitions (2), two limiting slides (6) are provided on the top sides of the mounting plates (5), the inner walls of the two limiting slides (6) are slidably connected to a T-shaped limiting slider (7), and the bottom ends of the two limiting sliders (7) are fixedly connected to a A filler mesh frame (8) is provided on one side of the mounting plate (5), two positioning slots (9) are provided, the inner walls of the two positioning slots (9) are both clamped with positioning blocks (10), one end of the two positioning blocks (10) is fixedly connected to a connecting plate (11), a fixing structure (12) is provided on the two connecting plates (11), the bottom sides of the two connecting plates (11) are both fixedly connected to a membrane frame (13), the interiors of the two membrane frames (13) are both fixedly installed with an MBR membrane (14), and the sewage treatment tank (1) is connected to a delivery pump (15) through a pipeline.

2. A short-range nitrification biological filtration device according to claim 1, characterized in that: The fixing structure (12) comprises a fixing spring (1201), a movable block (1202) and a fixing plug rod (1203); one side of the connecting plate (11) is fixedly connected to the fixing spring (1201); one end of the fixing spring (1201) is fixedly connected to the movable block (1202); a side of the movable block (1202) close to the connecting plate (11) is fixedly connected to the fixing plug rod (1203); one side of each of the two partitions (2) is provided with a fixing socket (16); and the bottom side of the mounting plate (5) is fixedly connected to two positioning rods (17).

3. A short-range nitrification biological filtration device according to claim 2, characterized in that: The width of the filler mesh frame (8) is equal to the minimum distance between two adjacent partitions (2), the height of the filler mesh frame (8) is equal to the height of the partition (2), and fillers are arranged inside the filler mesh frame (8).

4. A short-range nitrification biological filtration device according to claim 3, characterized in that: The positioning block (10) and the positioning slot (9) are both T-shaped, and the positioning block (10) and the positioning slot (9) are adapted in size.

5. A short-range nitrification biological filtration device according to claim 4, characterized in that: The filler mesh frame (8) is located between two partitions (2), and the partition (2) is located between two film frames (13).

6. The short-range nitrification biological filtration device according to claim 5, characterized in that: A portion of the fixed rod (1203) is located inside the fixed spring (1201), the fixed rod (1203) passes through the connecting plate (11), the fixed rod (1203) is slidably connected to the connecting plate (11), and the size of the fixed rod (1203) is adapted to that of the fixed socket (16).

7. The short-range nitrification biological filtration device according to claim 6, characterized in that: The number of the positioning rods (17) corresponds to the number of the positioning holes (4), and the sizes of the positioning rods (17) and the positioning holes (4) are adapted to each other.

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