Sewage treatment equipment

Abstract

The invention discloses sewage treatment equipment, and mainly relates to the technical field of sewage treatment equipment. Comprising a frame, an evaporation tank, a cooler, a jet device, a water storage tank, a power source heat pump, a heat exchanger, a refrigerant tank, a second water pump and a cooling fan, the evaporation tank, the cooler, the jet device, the water storage tank, the power source heat pump, the heat exchanger, the refrigerant tank, the second water pump and the cooling fan are all fixedly connected with the frame, and a flange pipe is fixed to and communicates with the surface of the evaporation tank; the cooler is fixedly connected with the evaporation tank, and the jet device is fixedly connected and communicated with the liquid discharge end of the cooler. The sewage treatment device has the beneficial effects that by operating the filtering structure, impurities in sewage can be prevented from entering the water inlet pipe by the filtering plate when the sewage is treated, so that the condition that the impurities are attached to and block a pipeline of the heat exchanger is prevented, the sewage treatment device can continuously work, and the sewage evaporation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and in particular to sewage treatment equipment. Background Art

[0002] Sewage treatment equipment is a series of devices used to treat sewage to meet discharge standards or reuse standards. Among them, there is a type of sewage treatment equipment that uses evaporation technology to distill and purify sewage. In the process of using this equipment, the sewage needs to be passed into the evaporator, and then the evaporator is evacuated to lower the boiling point of the sewage. After that, the power heat pump is used to control the refrigerant to make the cooler condense the water vapor, and at the same time, the heat of the high-temperature refrigerant is used to heat the sewage in the heat exchanger. The sewage is then controlled by a water pump to circulate along the path of "evaporator-water pump-heat exchanger-evaporator". At this time, the sewage will be heated, so that the temperature of the sewage in the evaporator rises and reaches the boiling point, thereby ensuring that the sewage can continue to boil and evaporate.

[0003] The inventors discovered in daily life that when sewage is discharged into the heat exchanger by a water pump, the sewage contains impurities, which easily adhere to the inner wall of the heat exchanger, causing the heat exchange efficiency of the heat exchanger to decrease, thereby affecting the normal heating of the sewage and reducing the evaporation efficiency of the sewage.

[0004] The present application provides another technical solution to the technical problem, aiming to provide technical personnel in the field with a variety of options for solving the problem. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that impurities are easily attached to the inner wall of the heat exchanger, resulting in a decrease in the heat exchange efficiency of the heat exchanger, and to propose a sewage treatment device.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sewage treatment equipment, including a frame, an evaporation tank, a cooler, an ejector, a water storage tank, a power heat pump, a heat exchanger, a refrigerant tank, a second water pump and a heat dissipation fan, the evaporation tank, the cooler, the ejector, the water storage tank, the power heat pump, the heat exchanger, the refrigerant tank, the second water pump and the heat dissipation fan are all fixedly connected to the frame, the surface of the evaporation tank is fixedly connected and connected with a flange pipe, the cooler is fixedly connected to the evaporation tank, the ejector is fixedly connected and connected with the discharge end of the cooler, the liquid inlet end of the ejector is fixedly connected and connected with the first water pump, the liquid inlet end of the first water pump is fixedly connected and connected with the water storage tank, the discharge end of the ejector is fixedly connected and connected with the water storage tank, the surface of the water storage tank is fixedly connected with a discharge solenoid valve, one end of the power heat pump is fixedly connected and connected with the cooler, one end of the power heat pump is fixedly connected and connected with the heat exchanger, one end of the heat exchanger is fixedly connected with The refrigerant tank is fixedly connected and communicated, the refrigerant tank is fixedly connected and communicated with the cooler, the liquid inlet end of the second water pump is fixedly connected and communicated with a water inlet pipe, the discharge end of the second water pump is fixedly connected and communicated with a connecting pipe, the connecting pipe is fixedly connected and communicated with the heat exchanger, the surface of the heat exchanger is fixedly connected and communicated with a transfer pipe, one end of the transfer pipe is fixedly connected and communicated with the evaporator, and a filtering structure is provided on the surface of the water inlet pipe, and the filtering structure includes a hollow frame, the hollow frame is fixedly connected and communicated with the water inlet pipe, one end of the hollow frame is fixedly connected and communicated with the evaporator, the inner wall of the hollow frame is slidably connected with a sliding frame, the inner wall of the sliding frame is slidably connected with a retaining ring, one end of the retaining ring is fixedly connected with a filter plate, the filter plate is slidably connected with the hollow frame, the lower surface of the sliding frame is fixedly connected with a card frame, the surface of the card frame is snap-connected with a storage box, the surface of the storage box is fixedly connected with an extension plate, and the inner thread of the extension plate is connected with a bolt.

[0007] The effect achieved by the above components is: through the operation of the filtering structure, when the sewage is treated, the filter plate will block the impurities in the sewage from entering the water inlet pipe, thereby preventing the impurities from adhering to and clogging the pipes of the heat exchanger, ensuring that the sewage treatment device can continue to work and improving the evaporation efficiency of sewage.

[0008] Preferably, a sealing ring is fixedly connected to the surface of the storage box, and the sealing ring abuts against the surface of the hollow frame.

[0009] The effect achieved by the above components is that the sealing ring improves the sealing performance between the storage box and the hollow frame.

[0010] Preferably, a spring is fixedly connected to the inner wall of the retaining ring, and one end of the spring is fixedly connected to the sliding frame.

[0011] The effect achieved by the above components is that when the water flow impact disappears, the spring will use its own elastic force to drive the retaining ring to slide and reset.

[0012] Preferably, a positioning groove is formed on the inner wall of the sliding frame, a positioning block is fixedly connected to the outer wall of the retaining ring, and the positioning block is slidably connected to the positioning groove.

[0013] The effect achieved by the above components is that the sliding of the retaining ring will drive the positioning block to slide along the inner wall of the positioning groove, and the positioning block cooperates with the positioning groove to limit the sliding path of the retaining ring.

[0014] Preferably, the hollow frame is fixedly connected with a trapezoidal block at a position relative to the bolt.

[0015] The effect achieved by the above components is that when the bolts are against the inclined surface of the trapezoidal block, the inclined surface of the trapezoidal block will squeeze the bolts, so that the bolts drive the extension plate to move upward, thereby pressing the sealing ring against the outer wall of the hollow frame.

[0016] Preferably, a limiting structure is provided on the surface of the storage box, and the limiting structure includes a round tube, and the round tube is fixedly connected to the storage box. The inner wall of the round tube is slidably connected to a limiting rod, and the limiting rod passes through the storage box. A limiting groove is provided on the surface of the card frame, and the limiting groove is engaged with the limiting rod, and one end of the limiting rod is fixedly connected to a bending plate.

[0017] The effect achieved by the above components is: by operating the limiting structure, with the help of the limiting rod and the limiting groove, the tightness of the connection between the card frame and the storage box is improved, making it convenient to take out the filter plate and clean it simultaneously during the process of taking out the storage box.

[0018] Preferably, a leaf spring is fixedly connected between the bending plate and the storage box.

[0019] The effect achieved by the above components is that when the leaf spring contracts, the bending plate will drive the limiting rod to insert into the limiting groove with the help of the tension of the leaf spring.

[0020] Preferably, the limiting rod is in the shape of a regular hexagonal prism.

[0021] The effect achieved by the above components is that the limiting rod in the form of a regular hexagonal prism structure can limit the moving path of the bending plate.

[0022] Preferably, an auxiliary structure is provided on the surface of the storage box, and the auxiliary structure includes a rotating shaft, which is rotatably connected to the storage box, and the arc surface of the rotating shaft is fixedly connected to a transmission plate, and the transmission plate is slidably connected to the bending plate, and the arc surface of the rotating shaft is fixedly connected to a pinching plate.

[0023] The effect achieved by the above components is: by operating the auxiliary structure, when cleaning the impurities in the storage box, the two limit rods can be moved simultaneously with the help of two transmission plates, thereby facilitating the separation of the card frame and the storage box for operation, thereby improving the convenience of operation.

[0024] Preferably, a plurality of anti-slip holes are provided on the surface of the pinching plate.

[0025] The effect achieved by the above components is that the anti-slip holes can increase the friction force on the surface of the pinching plate.

[0026] In summary, the beneficial effects of the present invention are: In the present invention, by operating the filtering structure, when sewage is treated, the filter plate blocks impurities in the sewage from entering the water inlet pipe, thereby preventing the impurities from adhering to and clogging the pipeline of the heat exchanger, ensuring that the sewage treatment device can continue to work and improving the evaporation efficiency of sewage.

[0027] In the present invention, by operating the limiting structure and cooperating with the limiting rod and the limiting groove, the tightness of the connection between the card frame and the storage box is improved, so that the filter plate can be taken out and cleaned synchronously during the process of taking out the storage box.

[0028] In the present invention, by operating the auxiliary structure, when cleaning the impurities in the storage box, the two limit rods can be moved simultaneously with the help of two transmission plates, so that the card frame and the storage box can be separated for operation, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Attached Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Attached Figure 2 It is a structural schematic diagram of the framework of the present invention; Attached Figure 3 It is a structural schematic diagram of the heat exchanger of the present invention; Attached Figure 4 It is a schematic diagram of the split structure of the storage box of the present invention; Attached Figure 5 It is a schematic diagram of the split structure of the storage box of the present invention from another angle; Attached Figure 6 It is a schematic diagram of the cross-sectional structure of the hollow frame of the present invention; Attached Figure 7 It is a structural schematic diagram of the storage box of the present invention; Attached Figure 8 It is a schematic structural diagram of the bent plate of the present invention.

[0030] Numbers shown in the drawings: 1, frame; 2, evaporator; 3, flange pipe; 4, cooler; 5, ejector; 6, first water pump; 7, filtering structure; 701, hollow frame; 702, sliding frame; 703, retaining ring; 704, filter plate; 705, card frame; 706, storage box; 707, extension plate; 708, bolt; 709, trapezoidal block; 710, spring; 711, positioning groove; 712, positioning block; 713, positioning block; 714, positioning block; 715, positioning block; 716, positioning block; 717, positioning block; 718, positioning block; 719, positioning block; 720, positioning block; 721, positioning block; 722, positioning block; 723, positioning block; 724, positioning block; 725, positioning block; 726, positioning block; 727, positioning block; 728, positioning block; 729, positioning block; 730, positioning block; 731, positioning block; 732, positioning block; 733, positioning block; 734, positioning block; 735, positioning block; 736, positioning block; 737, positioning block; 738, positioning block; 739, positioning block; 740, positioning block; 741, positioning slot; 742, positioning block; 743, positioning block; 744, positioning block; 745, positioning slot; 746, positioning block; 747, positioning block; 748, positioning block; 749, positioning slot; 749, positioning slot; 750, positioning slot; 751, positioning slot; 752, positioning block; 753, positioning block; 754, positioning slot; 755, positioning frame; 756, positioning block; 7 3. Sealing ring; 8. Limiting structure; 81. Round tube; 82. Limiting rod; 83. Bending plate; 84. Limiting groove; 85. Leaf spring; 9. Auxiliary structure; 91. Rotating shaft; 92. Transmission plate; 93. Pinch plate; 94. Anti-slip hole; 10. Water storage tank; 11. Power supply heat pump; 12. Heat exchanger; 13. Second water pump; 14. Water inlet pipe; 15. Connecting pipe; 16. Transfer pipe; 17. Cooling fan; 18. Refrigerant tank. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0032] Reference Figure 1-Figure 8As shown, the present invention provides a technical solution: a sewage treatment equipment, including a frame 1, an evaporation tank 2, a cooler 4, an ejector 5, a water storage tank 10, a power heat pump 11, a heat exchanger 12, a refrigerant tank 18, a second water pump 13 and a heat dissipation fan 17, the evaporation tank 2, the cooler 4, the ejector 5, the water storage tank 10, the power heat pump 11, the heat exchanger 12, the refrigerant tank 18, the second water pump 13 and the heat dissipation fan 17 are all fixedly connected to the frame 1, the surface of the evaporation tank 2 is fixedly connected and connected with a flange pipe 3, the cooler 4 is fixedly connected to the evaporation tank 2, the ejector 5 is fixedly connected and connected with the discharge end of the cooler 4, the liquid inlet end of the ejector 5 is fixedly connected and connected with a first water pump 6, the liquid inlet end of the first water pump 6 is fixedly connected and connected with the water storage tank 10, the discharge end of the ejector 5 is fixedly connected and connected with the water storage tank 10 and The surface of the water storage tank 10 is fixedly connected with a drain solenoid valve, one end of the power supply heat pump 11 is fixedly connected and communicated with the cooler 4, one end of the power supply heat pump 11 is fixedly connected and communicated with the heat exchanger 12, one end of the heat exchanger 12 is fixedly connected and communicated with the refrigerant tank 18, the refrigerant tank 18 is fixedly connected and communicated with the cooler 4, the liquid inlet end of the second water pump 13 is fixedly connected with a water inlet pipe 14, the drainage end of the second water pump 13 is fixedly connected with a connecting pipe 15, the connecting pipe 15 is fixedly connected and communicated with the heat exchanger 12, the surface of the heat exchanger 12 is fixedly connected with a transfer pipe 16, one end of the transfer pipe 16 is fixedly connected and communicated with the evaporation tank 2, the surface of the water inlet pipe 14 is provided with a filtering structure 7, the surface of the storage box 706 is provided with a limiting structure 8, and the surface of the storage box 706 is provided with an auxiliary structure 9.

[0033] The specific configuration and functions of the filtering structure 7, the limiting structure 8 and the auxiliary structure 9 are described in detail below.

[0034] Reference Figure 4-Figure 7As shown, in this embodiment: the filtering structure 7 includes a hollow frame 701, the hollow frame 701 is fixedly connected and communicated with the water inlet pipe 14, one end of the hollow frame 701 is fixedly connected and communicated with the evaporation tank 2, the inner wall of the hollow frame 701 is slidably connected with a sliding frame 702, the inner wall of the sliding frame 702 is slidably connected with a retaining ring 703, one end of the retaining ring 703 is fixedly connected with a filter plate 704, the filter plate 704 is slidably connected to the hollow frame 701, the lower surface of the sliding frame 702 is fixedly connected with a card frame 705, the surface of the card frame 705 is snap-connected with a storage box 706, the surface of the storage box 706 is fixedly connected with an extension plate 707, the extension plate 707 is internally threaded with a bolt 708, the surface of the storage box 706 is fixedly connected with a sealing ring 713, the sealing ring 713 is against the surface of the hollow frame 701, the sealing ring 713 achieves the effect of improving the sealing between the storage box 706 and the hollow frame 701, the retaining ring The inner wall of 703 is fixedly connected with a spring 710, and one end of the spring 710 is fixedly connected to the sliding frame 702. When the water flow impact disappears, the spring 710 will use its own elastic force to drive the retaining ring 703 to slide and reset. The inner wall of the sliding frame 702 is provided with a positioning groove 711, and the outer wall of the retaining ring 703 is fixedly connected with a positioning block 712. The positioning block 712 is slidably connected to the positioning groove 711. The sliding of the retaining ring 703 will drive the positioning block 712 to slide along the inner wall of the positioning groove 711. The positioning block 712 cooperates with the positioning groove 711 to limit the sliding path of the retaining ring 703. The hollow frame 701 is fixedly connected with a trapezoidal block 709 relative to the position of the bolt 708. When the bolt 708 is against the inclined surface of the trapezoidal block 709, the inclined surface of the trapezoidal block 709 will squeeze the bolt 708, so that the bolt 708 drives the extension plate 707 to move upward, and then the sealing ring 713 can be pressed against the outer wall of the hollow frame 701.

[0035] Reference Figure 7 As shown, in the present embodiment: the limiting structure 8 includes a circular tube 81, the circular tube 81 is fixedly connected to the storage box 706, the inner wall of the circular tube 81 is slidably connected to the limiting rod 82, the limiting rod 82 passes through the storage box 706, and a limiting groove 84 is provided on the surface of the card frame 705, the limiting groove 84 is snap-connected with the limiting rod 82, one end of the limiting rod 82 is fixedly connected with a bending plate 83, and a leaf spring 85 is fixedly connected between the bending plate 83 and the storage box 706. When the leaf spring 85 contracts, the bending plate 83 will drive the limiting rod 82 to be inserted into the limiting groove 84 with the help of the pulling force of the leaf spring 85, and the limiting rod 82 has a regular hexagonal prism structure, and the limiting rod 82 with a regular hexagonal prism structure can limit the moving path of the bending plate 83.

[0036] Reference Figure 7 and Figure 8As shown, in this embodiment: the auxiliary structure 9 includes a rotating shaft 91, the rotating shaft 91 is rotatably connected to the storage box 706, the arc surface of the rotating shaft 91 is fixedly connected to a transmission plate 92, the transmission plate 92 is slidably connected to the bending plate 83, the arc surface of the rotating shaft 91 is fixedly connected to a pinching plate 93, and the surface of the pinching plate 93 is provided with a plurality of anti-skid holes 94, and the anti-skid holes 94 can increase the friction force on the surface of the pinching plate 93.

[0037] Detailed description of usage: When treating sewage, fill the water storage tank 10 with clean water, pass the sewage into the evaporation tank 2 through the flange pipe 3, and then turn on the first water pump 6. The first water pump 6 will suck the water from the water storage tank 10 and discharge the water into the ejector 5. The water will re-enter the water storage tank 10 through the ejector 5. During this process, the air in the evaporation tank 2 will flow through the cooler 4 and be sucked into the ejector 5. Therefore, the evaporation tank 2 will gradually be evacuated to a vacuum, thereby reducing the boiling point of the sewage. At this time, the sewage in the evaporation tank 2 will be evaporated, and then the power supply heat pump 11 will be used to control the The refrigerant causes the cooler 4 to condense the water vapor, and at the same time uses the heat of the high-temperature refrigerant to heat the sewage in the heat exchanger 12. Then the second water pump 13 is turned on, and the second water pump 13 will suck the sewage. After the sewage enters the water inlet pipe 14, it will be discharged into the connecting pipe 15 by the second water pump 13. The connecting pipe 15 will input the sewage into the heat exchange pipe. The high-temperature refrigerant in the heat exchange pipe will heat the sewage. The heated sewage will flow back to the evaporation tank 2 through the transfer pipe 16. At this time, the sewage will be continuously heated, so that the temperature of the sewage in the evaporation tank 2 will rise and reach the boiling point, thereby ensuring that the sewage can continue to boil and evaporate.

[0038] When sewage flows into the hollow frame 701 from the evaporation tank 2, the sewage will impact the filter plate 704, the filter plate 704 will slide along the inner wall of the hollow frame 701 and stretch the spring 710, the sliding of the filter plate 704 will drive the retaining ring 703 to slide, the sliding of the retaining ring 703 will block the sliding frame 702, thereby preventing the impurities in the storage box 706 from being impacted by the water flow and flowing into the hollow frame 701 from the storage box 706 again, the sliding of the retaining ring 703 will drive the positioning block 712 to slide along the inner wall of the positioning groove 711, and the positioning block 712 cooperates with the positioning groove 711 to limit the sliding of the retaining ring 703. The filter plate 704 blocks impurities in the sewage from entering the water inlet pipe 14, thereby preventing the impurities from adhering to and clogging the pipeline of the heat exchanger 12, ensuring that the sewage treatment device can continue to work. When the second water pump 13 is turned off, the water flow impact disappears. At this time, the spring 710 will use its own elastic force to drive the retaining ring 703 to slide in the opposite direction. The sliding of the retaining ring 703 will drive the filter plate 704 to slide. After the retaining ring 703 is aligned with the sliding frame 702, the impurities blocked by the filter plate 704 will pass through the retaining ring 703 and the sliding frame 702 and sink into the storage box 706, and the storage box 706 will collect the impurities.

[0039] When it is necessary to clean the impurities in the storage box 706, the bolt 708 is turned, and the bolt 708 will move in the direction away from the hollow frame 701 with the help of the thread, and then the storage box 706 can be moved downward, at this time, the sliding frame 702 and the filter plate 704 will move synchronously, and when the sliding frame 702 slides out of the hollow frame 701, the two pinching plates 93 are pinched. At this time, the anti-skid holes 94 can increase the friction force on the surface of the pinching plate 93, and the rotating shaft 91 follows the movement of the pinching plate 93 to drive the transmission plate 92 to move, and the movement of the transmission plate 92 will squeeze the bending plate 83, and the movement of the bending plate 83 will stretch the leaf spring 85 and drive the limiting rod 82 to slide, and when the limiting rod 82 is out of contact with the limiting groove 84, the card frame 705 can slide out of the storage box 706, and then the impurities can be poured out of the storage box 706 for cleaning, and the filter plate 704 can also be cleaned, and the card frame 705 can be reinserted after cleaning. When the locking cam 713 is unlocked, the locking cam 714 is unlocked and the locking cam 715 is unlocked, and the locking cam 716 is unlocked, and the locking cam 717 is unlocked.

Claims

1. A sewage treatment device, comprising a frame (1), an evaporation tank (2), a cooler (4), an ejector (5), a water storage tank (10), a power supply heat pump (11), a heat exchanger (12), a refrigerant tank (18), a second water pump (13) and a cooling fan (17), characterized in that: The evaporator (2), cooler (4), ejector (5), water storage tank (10), power supply heat pump (11), heat exchanger (12), refrigerant tank (18), second water pump (13) and cooling fan (17) are all fixedly connected to the frame (1); the surface of the evaporator (2) is fixedly connected to and communicated with a flange pipe (3); the cooler (4) is fixedly connected to the evaporator (2); the ejector (5) is fixedly connected to and communicated with a liquid discharge end of the cooler (4); the liquid inlet end of the ejector (5) is fixedly connected to and communicated with a first water pump (6); the liquid inlet end of the first water pump (6) is connected to the water storage tank (1 0) is fixedly connected and communicated, the discharge end of the ejector (5) is fixedly connected and communicated with the water storage tank (10), a discharge solenoid valve is fixedly connected to the surface of the water storage tank (10), one end of the power supply heat pump (11) is fixedly connected and communicated with the cooler (4), one end of the power supply heat pump (11) is fixedly connected and communicated with the heat exchanger (12), one end of the heat exchanger (12) is fixedly connected and communicated with the refrigerant tank (18), the refrigerant tank (18) is fixedly connected and communicated with the cooler (4), the liquid inlet end of the second water pump (13) is fixedly connected and communicated with the water inlet pipe (14), and the first The drainage end of the second water pump (13) is fixedly connected to and communicated with a connecting pipe (15), the connecting pipe (15) is fixedly connected to and communicated with the heat exchanger (12), a transfer pipe (16) is fixedly connected to and communicated with the surface of the heat exchanger (12), one end of the transfer pipe (16) is fixedly connected to and communicated with the evaporation tank (2), a filtering structure (7) is provided on the surface of the water inlet pipe (14), the filtering structure (7) comprises a hollow frame (701), the hollow frame (701) is fixedly connected to and communicated with the water inlet pipe (14), one end of the hollow frame (701) is fixedly connected to and communicated with the evaporation tank (2), and the filter structure (7) comprises a hollow frame (701), the hollow frame (701) is fixedly connected to and communicated with the water inlet pipe (14), and one end of the hollow frame (701) is fixedly connected to and communicated with the evaporation tank (2). The inner wall of the hollow frame (701) is slidably connected to a sliding frame (702), the inner wall of the sliding frame (702) is slidably connected to a retaining ring (703), one end of the retaining ring (703) is fixedly connected to a filter plate (704), the filter plate (704) is slidably connected to the hollow frame (701), the lower surface of the sliding frame (702) is fixedly connected to a clamping frame (705), the surface of the clamping frame (705) is clamped and connected to a storage box (706), the surface of the storage box (706) is fixedly connected to an extension plate (707), and the extension plate (707) is internally threaded with a bolt (708).

2. A sewage treatment equipment according to claim 1, characterized in that: A sealing ring (713) is fixedly connected to the surface of the storage box (706), and the sealing ring (713) abuts against the surface of the hollow frame (701).

3. A sewage treatment equipment according to claim 1, characterized in that: A spring (710) is fixedly connected to the inner wall of the retaining ring (703), and one end of the spring (710) is fixedly connected to the sliding frame (702).

4. A sewage treatment equipment according to claim 1, characterized in that: The inner wall of the sliding frame (702) is provided with a positioning groove (711), and the outer wall of the retaining ring (703) is fixedly connected with a positioning block (712), and the positioning block (712) is slidably connected to the positioning groove (711).

5. A sewage treatment equipment according to claim 1, characterized in that: The hollow frame (701) is fixedly connected with a trapezoidal block (709) at a position relative to the bolt (708).

6. A sewage treatment equipment according to claim 1, characterized in that: A limiting structure (8) is provided on the surface of the storage box (706), the limiting structure (8) comprising a circular tube (81), the circular tube (81) being fixedly connected to the storage box (706), the inner wall of the circular tube (81) being slidably connected to a limiting rod (82), the limiting rod (82) passing through the storage box (706), a limiting groove (84) being provided on the surface of the card frame (705), the limiting groove (84) being snap-fitted and connected to the limiting rod (82), and one end of the limiting rod (82) being fixedly connected to a bending plate (83).

7. A sewage treatment equipment according to claim 6, characterized in that: A leaf spring (85) is fixedly connected between the bending plate (83) and the storage box (706).

8. A sewage treatment equipment according to claim 6, characterized in that: The limiting rod (82) is in the form of a regular hexagonal prism structure.

9. A sewage treatment equipment according to claim 6, characterized in that: An auxiliary structure (9) is provided on the surface of the storage box (706), the auxiliary structure (9) comprising a rotating shaft (91), the rotating shaft (91) being rotatably connected to the storage box (706), a transmission plate (92) being fixedly connected to the circular arc surface of the rotating shaft (91), the transmission plate (92) being slidably connected to the bending plate (83), and a pinching plate (93) being fixedly connected to the circular arc surface of the rotating shaft (91).

10. A sewage treatment equipment according to claim 9, characterized in that: A plurality of anti-slip holes (94) are provided on the surface of the pinching plate (93).

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