Hydrolysis acidification coupling aerobic granular sludge treatment tank

Abstract

The utility model relates to the technical field of sludge treatment, in particular to a hydrolytic acidification coupling aerobic granular sludge treatment pond which comprises a treatment pond main body, a scum separation area is arranged in the treatment pond main body, a stirring assembly is arranged on the treatment pond main body, a rotating motor is fixedly arranged on the treatment pond main body, and the stirring assembly is arranged on the rotating motor. A motor shaft of the rotating motor is fixedly provided with a reciprocating lead screw, the reciprocating lead screw is sleeved with a scum scraping plate in a threaded mode, a lifting groove is formed in the treatment pond body, a plurality of first springs are fixedly installed in the lifting groove, one ends of the first springs are jointly and fixedly provided with a vibration plate, and the two sides of the vibration plate are both installed in an inclined plane mode; a sealing assembly is mounted on the treatment tank main body. According to the utility model, scum generated during sludge treatment can be quickly treated, and meanwhile, the reaction rate between wastewater in the treatment tank main body and a reactant can be accelerated.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, and in particular to a hydrolysis acidification coupled aerobic granular sludge treatment tank. Background Technology

[0002] Sludge treatment refers to a series of technical means and management measures for reducing, stabilizing, rendering harmless, and recycling sludge generated during the wastewater treatment process. The aim is to reduce its potential risks to the environment and human health, and to achieve resource recycling as much as possible. It mainly involves sediments generated in wastewater treatment plants.

[0003] Existing hydrolysis-acidification coupled aerobic granular sludge treatment tanks add certain reactants to improve sludge settling and dewatering during treatment. However, during the treatment process, the sludge may disintegrate and produce scum. Existing scum treatment usually involves manual removal by staff using a filter screen, which is time-consuming and labor-intensive. At the same time, the uneven mixing between the reactants and wastewater sludge inside the treatment tank slows down the sludge treatment rate. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydrolysis-acidification coupled aerobic granular sludge treatment tank.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydrolysis-acidification coupled aerobic granular sludge treatment tank includes a treatment tank body, a scum separation zone installed inside the treatment tank body, a stirring assembly installed on the treatment tank body, a rotary motor fixedly installed on the treatment tank body, a reciprocating screw fixedly installed on the motor shaft of the rotary motor, a scum scraper threaded onto the reciprocating screw, a lifting groove opened on the treatment tank body, a plurality of springs fixedly installed in the lifting groove, a vibrating plate fixedly installed at one end of the plurality of springs, the vibrating plate being installed at an angle on both sides, and a sealing assembly installed on the treatment tank body.

[0007] Preferably, the sealing assembly includes two symmetrical sliding grooves on the scum separation zone, a sealing plate is slidably connected in the two sliding grooves, two springs are fixedly installed at both ends of the sealing plate, the two ends of the two springs are respectively fixedly installed in the two sliding grooves, two symmetrical extension blocks are fixedly installed at the upper end of the sealing plate, and two symmetrical push blocks are fixedly installed on the scum scraper.

[0008] Preferably, the stirring assembly includes multiple rotating rods rotatably connected within the main body of the treatment tank, each of the multiple rotating rods being fixedly mounted with a spur gear, adjacent spur gears meshing with each other, each of the multiple rotating rods being fixedly mounted with a helical blade, and the reciprocating screw being connected to one of the rotating rods via a belt drive assembly.

[0009] Preferably, the belt drive assembly includes pulleys fixedly connected to a reciprocating screw and one of the rotating rods, with a belt body rotatably mounted between the two pulleys.

[0010] Preferably, the inner side of the scum separation zone is installed on an inclined plane.

[0011] Preferably, all of the spiral blades are made of corrosion-resistant material.

[0012] 1. Compared with the prior art, the beneficial effects of this utility model are: by rotating the reciprocating screw, the scum scraper is driven to quickly clean the scum on the main body of the treatment tank, which reduces the labor of the staff and improves the processing rate. At the same time, the scum scraper squeezes the vibrating plate, and the vibrating plate impacts the scum scraper, which accelerates the scum on the scum scraper to fall into the scum separation zone.

[0013] 2. The belt drive assembly can drive the rotating rod to rotate, which in turn causes multiple spur gears to rotate. This allows the spiral blades to stir within the treatment tank, resulting in a more uniform mixing of the reactant and wastewater. Consequently, the wastewater and sludge treatment rate can be effectively accelerated, meeting the needs of the staff. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of a hydrolysis-acidification coupled aerobic granular sludge treatment tank proposed in this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of a belt drive assembly for a hydrolysis acidification coupled aerobic granular sludge treatment tank proposed in this utility model.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the scum separation zone of a hydrolysis-acidification coupled aerobic granular sludge treatment tank proposed in this utility model.

[0017] In the diagram: 1. Treatment tank body, 2. Scum separation zone, 3. Rotary motor, 4. Reciprocating screw, 5. Scum scraper, 6. Lifting trough, 7. Spring 1, 8. Vibrating plate, 9. Sliding trough, 10. Sealing plate, 11. Spring 2, 12. Extension block, 13. Pushing block, 14. Rotating rod, 15. Spur gear, 16. Spiral blade, 17. Pulley, 18. Belt body. Detailed Implementation

[0018] Reference Figures 1-3 A hydrolysis-acidification coupled aerobic granular sludge treatment tank includes a treatment tank body 1. A scum separation zone 2 is installed inside the treatment tank body 1. The inner side of the scum separation zone 2 is installed at an incline. Due to the incline installation of the scum separation zone 2, when the scum scraper 5 pushes the scum to the scum separation zone 2, it is easier for the scum to fall into the scum separation zone 2. A stirring assembly is installed on the treatment tank body 1. The stirring assembly includes multiple rotating rods 14 rotatably connected inside the treatment tank body 1. Each of the multiple rotating rods 14 is fixedly mounted with a spur gear 15. Adjacent spur gears 15 mesh with each other. Each of the multiple rotating rods 14 is fixedly mounted with a spiral blade 16. The multiple spiral blades 16 are made of corrosion-resistant material. Through the corrosion resistance of the spiral blades 16, the spiral blades 16 can be effectively protected, reducing the corrosion they are subjected to and extending their service life.

[0019] The reciprocating screw 4 is connected to one of the rotating rods 14 via a belt drive assembly. With the above structure, when the reciprocating screw 4 rotates, the belt drive assembly drives the rotating rod 14 to rotate, thus rotating the spur gear 15 on it, which in turn drives the adjacent meshing spur gear 15 to rotate. Therefore, multiple spur gears 15 rotate simultaneously, thereby driving multiple rotating rods 14 to rotate simultaneously, causing multiple spiral blades 16 to rotate simultaneously, stirring the treatment tank body 1 and accelerating the reaction between the reactant and the sewage sludge. The belt drive assembly includes a pulley 17 fixedly connected to the reciprocating screw 4 and one of the rotating rods 14. A belt body 18 is rotatably mounted between the two pulleys 17. With the above structure, when the reciprocating screw 4 rotates, it drives the pulley 17 to rotate, and the belt body 18 drives the other pulley 17 to rotate, thus driving the rotating rod 14 to rotate.

[0020] A rotary motor 3 is fixedly installed on the main body 1 of the treatment tank. The rotary motor 3 is a prior art technology that can make the object connected to its motor shaft rotate. A reciprocating screw 4 is fixedly installed on the motor shaft of the rotary motor 3. The reciprocating screw 4 is a prior art technology. Its main shaft rotation direction remains unchanged, which can make the object mounted on it reciprocate. A scum scraper 5 is threaded on the reciprocating screw 4. A lifting groove 6 is opened on the main body 1 of the treatment tank. Multiple springs 7 are fixedly installed in the lifting groove 6. A vibrating plate 8 is fixedly installed on one end of the multiple springs 7. Both sides of the vibrating plate 8 are installed at an angle. The angled installation facilitates the scum scraper 5 to squeeze it and make it descend. A sealing assembly is installed on the main body 1 of the treatment tank. The sealing assembly includes two mutually symmetrical sliding grooves 9 opened on the scum separation zone 2. A sealing plate 10 is slidably connected in the two sliding grooves 9.

[0021] Springs 11 are fixedly installed at both ends of the sealing plate 10. The two ends of the two springs 11 are respectively fixedly installed in the two sliding grooves 9. Two mutually symmetrical extension blocks 12 are fixedly installed at the upper end of the sealing plate 10. Two mutually symmetrical push blocks 13 are fixedly installed on the scum scraper 5. When the extension blocks 12 on the sealing plate 10 in the sealing assembly are pushed back by the push blocks 13, the scum separation zone 2 is opened to facilitate the entry of scum. At the same time, after the push blocks 13 leave, they are reset by the springs 11. The sealing plate 10 can prevent the surge of sewage during the reaction in the main body of the treatment tank 1, so that sewage enters the scum separation zone 2 and causes waste of resources.

[0022] In this invention, the working principle is as follows: A reaction occurs within the main body 1 of the treatment tank, producing scum. At this point, the rotary motor 3 is activated, driving the reciprocating screw 4 to rotate, causing the scum scraper 5 to move and scrape the scum until it reaches the scum separation zone 2. There, the scum scraper 5 presses against the vibrating plate 8, forcing it down into the lifting trough 6. Then, the scum scraper 5 continues forward. After being no longer pressed by the scum scraper 5, the vibrating plate 8 rises due to the elastic force of the spring 7, impacting the scum scraper 5. This causes the scum on the scum scraper 5 to fall more quickly and directly into the scum separation zone 2, completing the treatment. During this process, the pushing block 13 on the scum scraper 5 presses against the extension block 12, causing the extension block 12... The sealing plate 10 retracts and opens the scum separation zone 2. After the reciprocating screw 4 continues to rotate, the scum scraper 5 retracts, and the vibrating plate 8 is squeezed and lowered again until the scum scraper 5 leaves. The sealing plate 10 is rebounded and reset by the spring 11. During this process, the reciprocating screw 4 rotates continuously, and the scum scraper 5 continuously processes the scum. Driven by the belt drive assembly, one rotating rod 14 rotates. Through the meshing between the spur gears 15 on multiple rotating rods 14, multiple rotating rods 14 rotate simultaneously, and multiple spiral blades 16 rotate simultaneously. Therefore, the contact between sewage and reactant can be made more uniform, improving the sewage and sludge treatment rate and meeting the needs of the staff.

Claims

1. A hydrolytic acidification coupled aerobic granular sludge treatment tank comprising a treatment tank body (1), characterized in that, The processing pool body (1) is provided with a dross separation zone (2), a stirring assembly, a rotary motor (3) fixedly installed on the processing pool body (1), a reciprocating screw rod (4) fixedly installed on the motor shaft of the rotary motor (3), a dross scraping plate (5) threadedly sleeved on the reciprocating screw rod (4), a lifting groove (6) formed in the processing pool body (1), a plurality of spring (7) fixedly installed in the lifting groove (6), a vibrating plate (8) fixedly installed at one end of the plurality of spring (7), and a sealing assembly installed on the processing pool body (1).

2. The hydrolysis-acidification coupled aerobic granular sludge treatment tank according to claim 1, characterized in that, The sealing assembly comprises two symmetrical sliding grooves (9) formed in the dross separation zone (2), a sealing plate (10) slidably connected in the two sliding grooves (9), spring (11) fixedly installed at both ends of the sealing plate (10), the two ends of the two spring (11) fixedly installed in the two sliding grooves (9), two symmetrical extension blocks (12) fixedly installed at the upper end of the sealing plate (10), and two symmetrical pushing blocks (13) fixedly installed on the dross scraping plate (5).

3. The hydrolysis-acidification coupled aerobic granular sludge treatment tank according to claim 1, characterized in that, The stirring assembly comprises a plurality of rotating rods (14) rotatably connected in the processing pool body (1), a straight gear (15) fixedly installed on each of the rotating rods (14), the adjacent straight gears (15) meshed with each other, a spiral blade (16) fixedly installed on each of the rotating rods (14), and a belt transmission assembly connecting the reciprocating screw rod (4) and one of the rotating rods (14).

4. The hydrolysis-acidification coupled aerobic granular sludge treatment tank according to claim 3, characterized in that, The belt transmission assembly comprises a belt pulley (17) fixedly connected to the reciprocating screw rod (4) and one of the rotating rods (14), and a belt body (18) rotatably installed between the two belt pulleys (17).

5. The hydrolysis-acidification coupled aerobic granular sludge treatment tank according to claim 1, characterized in that, The inner side of the dross separation zone (2) is obliquely installed.

6. The hydrolysis-acidification coupled aerobic granular sludge treatment tank according to claim 3, characterized in that, The plurality of spiral blades (16) are made of corrosion-resistant material.

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