Vehicle-mounted prying and installing type force-cyclone separation and ultrafiltration combined sewage treatment equipment

Abstract

The present application relates to sewage treatment technical field, and disclose a vehicle-mounted pry-mounted force cyclone separation ultrafiltration combined sewage treatment equipment.The present application integrates separation cylinder, sand collecting cone and ultrafiltration cylinder on the fixed frame, and sets up flow guide rotating cylinder, spiral rib, rotating sleeve and spiral flow guide plate in the separation cylinder, so that the tangential entering sewage forms stable cyclone field under the cooperation of liquid inlet pressure and rotating flow guide structure, the mud sand and heavier particles are discharged along the outer ring cyclone area, and the relatively clean liquid enters the ultrafiltration cylinder through the water taking port, the turnover filter screen and the clean liquid outlet pipe;The turnover filter screen intercepts the impurities in the filtering position, and the inner attachments are washed by the downward cyclone flow in the flushing position, so that the water inlet load and the blockage risk of the ultrafiltration cylinder are reduced, and the filter screen is cleaned online.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment. Background Technology

[0002] Wastewater treatment equipment is widely used in industrial wastewater, construction wastewater, emergency drainage, and decentralized wastewater treatment scenarios. In vehicle-mounted or skid-mounted wastewater treatment equipment, in order to improve on-site deployment efficiency, the influent pump, solid-liquid separation unit, filtration unit, pipeline valves, and control components are usually integrated and installed in the same fixed frame or skid frame. Among them, the cyclone separation structure uses tangential water inlet to form a rotating flow field, causing impurities with higher density such as mud, sand, and particulate matter to tend to the cylinder wall under centrifugal force and enter the bottom sewage discharge area with the downward water flow. The ultrafiltration structure further filters the relatively clear liquid after cyclone separation through membrane modules to reduce the content of fine suspended solids, colloids, and large molecular impurities in the effluent.

[0003] When treating wastewater containing silt or high suspended solids, existing hydrocyclone separation and ultrafiltration combined equipment relies mainly on inlet water pressure to create passive cyclone flow. The stability of the cyclone flow is easily affected by fluctuations in inlet water pressure and flow rate. The relatively clear liquid after hydrocyclone separation may still contain fine particles and flocs. If the clear liquid directly enters the ultrafiltration cartridge, it will increase the inlet water load and operating pressure of the ultrafiltration membrane module, leading to membrane pore blockage, decreased flux, and increased cleaning frequency. If a fixed filter screen is added at the clear liquid outlet channel, although it can intercept some impurities, the filter screen is easily blocked by particles and flocs after being in the water intake position for a long time. In addition, the fixed filter screen is not convenient for online cleaning, which will still affect the continuous operation stability of the vehicle-mounted skid-mounted equipment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the effluent from the hydrocyclone separation in the prior art is prone to entraining fine particles, which directly increases the operating load of the ultrafiltration cartridge, and the addition of a fixed filter screen has the disadvantage of being inconvenient to clean online. To this end, we propose a vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment.

[0005] To achieve the above objectives, this application adopts the following technical solution: a vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined sewage treatment equipment, including a fixed frame, on which a separation cylinder and an ultrafiltration cylinder are installed. A sand collection cone is connected to the bottom of the separation cylinder, a sewage discharge port is provided at the bottom of the sand collection cone, a cylinder cover is provided at the top of the separation cylinder, and a water inlet tangentially connected to the side wall of the separation cylinder is provided.

[0006] A flow guide cylinder is rotatably installed inside the separation cylinder, forming an outer annular swirling area between the flow guide cylinder and the separation cylinder. The flow guide cylinder is provided with spiral ribs that extend spirally along the wall of the flow guide cylinder.

[0007] A clear liquid outlet pipe is installed on the cylinder cover. The clear liquid outlet pipe extends downward into the separation cylinder and is connected to the ultrafiltration cylinder through a connecting pipe.

[0008] A rotating sleeve is fitted on the outside of the clear liquid outlet pipe. A spiral guide plate is installed on the rotating sleeve. The rotating sleeve is connected to the guide cylinder. A drive assembly that is connected to the rotating sleeve is installed on the cylinder cover.

[0009] The side wall of the clear liquid outlet pipe is provided with a water inlet, and a flip filter screen is provided outside the water inlet. The flip filter screen has a filtration position that fits and covers the water inlet and a flushing position that opens outward relative to the water inlet. When the flip filter screen is in the flushing position, at least part of the flip filter screen is located in the downward swirling water flow path of the outer ring swirling area.

[0010] Preferably, the lower end of the clear liquid outlet pipe is closed, and the water inlet is opened on the side wall of the clear liquid outlet pipe. The water inlet is located below the water inlet and above the sand collection cone.

[0011] Preferably, the outer wall of the clear liquid outlet pipe is provided with a hinge seat located below the water inlet, and the lower part of the flip filter screen is rotatably connected to the hinge seat through a rotating shaft; when the flip filter screen is in the filtration position, the flip filter screen fits and covers the outside of the water inlet; when the flip filter screen is in the rinsing position, the flip filter screen flips around the rotating shaft and flips to the outside and downward.

[0012] Preferably, when the inverted filter is in the rinsing position, the free end of the inverted filter is deflected away from the clear liquid outlet pipe, and the inner surface of the inverted filter faces the downward swirling water flow in the outer ring swirling area.

[0013] Preferably, a guide plate is provided on the flip filter screen, and a lifting rod is inserted into the clear liquid outlet pipe. The lower end of the lifting rod is connected to a guide frame, and the guide frame is movably engaged with the guide plate. When the lifting rod moves upward, the guide frame drives the flip filter screen to rotate around the rotating shaft from the filtration position to the rinsing position through the guide plate.

[0014] Preferably, the guide drum and the separator are coaxially arranged, and the spiral direction of the spiral ribs is consistent with the direction of the swirling flow formed in the separator after the water enters tangentially through the inlet.

[0015] Preferably, a connecting rod is provided between the rotating sleeve and the guide cylinder. One end of the connecting rod is connected to the rotating sleeve, and the other end is connected to the guide cylinder. There are multiple connecting rods, which are spaced apart along the circumference of the rotating sleeve. When the rotating sleeve rotates, the guide cylinder is driven to rotate synchronously through the connecting rods.

[0016] Preferably, the spiral guide plate is disposed on the outer periphery of the rotating sleeve, the spiral guide plate is located on the outer side of the lower part of the clear liquid outlet pipe, and the spiral direction of the spiral guide plate is consistent with the spiral direction of the spiral rib.

[0017] Preferably, the drive assembly includes a drive motor mounted on the cylinder cover, a drive gear connected to the output end of the drive motor, and a driven gear ring meshing with the drive gear. The driven gear ring is sleeved and fixed to the outside of the rotating sleeve.

[0018] Preferably, the ultrafiltration cartridge is located on one side of the separation cartridge, one end of the connecting pipe is connected to the clear liquid outlet pipe, and the other end is connected to the ultrafiltration cartridge; the fixing frame is a frame-type skid-mounted frame.

[0019] The technical effects and advantages of this invention are as follows:

[0020] This invention integrates a separation cylinder, a sand collection cone, and an ultrafiltration cartridge onto a fixed frame. Inside the separation cylinder, a guide cylinder, spiral ribs, a rotating sleeve, and a spiral guide plate are installed. This allows tangentially entering wastewater to form a stable swirling field under the combined action of the inlet pressure and the rotating guide structure. Mud, sand, particulate matter, and denser suspended impurities can enter the sand collection cone along the outer swirling area and be discharged through the drain outlet. The relatively clear liquid enters the clear liquid outlet pipe through the intake and is then transported to the ultrafiltration cartridge. This reduces the direct entry of larger particles and mud into the ultrafiltration cartridge, lowers the solid load and operating pressure at the front end of the ultrafiltration process, and improves the separation stability of the vehicle-mounted skid-mounted equipment during continuous on-site operation.

[0021] This invention features a water inlet on the side wall of the clear liquid outlet pipe and a rotating filter screen on the outside of the inlet. This allows the clear liquid to pass through the rotating filter screen before entering the clear liquid outlet pipe, trapping residual particles and flocs, thus further reducing the risk of clogging in the ultrafiltration cartridge. Simultaneously, the rotating filter screen has a filtration position that fits snugly over the water inlet and an outward-opening flushing position. After the lifting rod opens the rotating filter screen via the guide frame and guide plate, the screen is at least partially located in the downward swirling water flow path of the outer ring swirling area. This allows the downward swirling water flow to directly flush the inner surface of the rotating filter screen and carry attached impurities into the sand collection cone for discharge. This achieves a combination of water intake filtration and online self-cleaning, avoiding the problem of inconvenient cleaning after long-term clogging of the fixed filter screen, and reducing the need for additional backwashing structures and downtime maintenance. Attached Figure Description

[0022] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the separation cylinder, sand collection cone, and ultrafiltration cylinder of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the separation cylinder and sand collecting cone of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the spiral ribs and spiral guide plate of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the flip-up filter section of the present invention;

[0028] Figure 6 This is an exploded view of the structure of the flip-up filter in this invention.

[0029] Legend: 1. Separation cylinder; 2. Sand collection cone; 3. Drain outlet; 4. Cylinder cover; 5. Water inlet; 6. Guide cylinder; 7. Spiral ribs; 8. Connecting rod; 9. Clear liquid outlet pipe; 10. Rotating sleeve; 11. Spiral guide plate; 12. Drive motor; 13. Drive gear; 14. Driven gear ring; 15. Connecting pipe; 16. Ultrafiltration cylinder; 17. Water inlet; 18. Hinge seat; 19. Tilting filter screen; 20. Guide plate; 21. Rotating shaft; 22. Lifting rod; 23. Guide frame. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0031] Reference Figures 1 to 6 As shown, the present invention provides a vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment; the equipment includes a fixed frame, which is a frame-type skid-mounted frame, on which a separation cylinder 1 and an ultrafiltration cylinder 16 are installed; the separation cylinder 1 is used to form a hydrocyclone separation space and to perform front-end hydrocyclone pre-separation of the wastewater entering the equipment; the ultrafiltration cylinder 16 is used to further ultrafiltration treat the relatively clear liquid after pre-separation by the separation cylinder 1; the separation cylinder 1, the ultrafiltration cylinder 16 and the corresponding connecting pipelines are centrally installed on the fixed frame, so that the equipment as a whole meets the requirements for hoisting, transportation and vehicle-mounted fixation.

[0032] The separation cylinder 1 is a vertically arranged cylindrical structure. A sand collecting cone 2 is connected to the bottom of the separation cylinder 1. The sand collecting cone 2 has a cone-shaped structure that is larger at the top and smaller at the bottom. A sewage outlet 3 is provided at the bottom of the sand collecting cone 2. A cylinder cover 4 is provided at the top of the separation cylinder 1. The cylinder cover 4 is fixedly connected to the separation cylinder 1 by a flange and bolts. A water inlet 5 is provided on the side wall of the separation cylinder 1. The water inlet 5 is tangentially connected to the separation cylinder 1, so that the sewage transported under external pressure enters the separation cylinder 1 tangentially and forms an initial vortex. The mud, sand, particulate matter and suspended impurities with higher density in the sewage tend to move towards the outer area of ​​the separation cylinder 1 under the action of the vortex, and enter the sand collecting cone 2 with the downward vortex water flow, and finally are discharged through the sewage outlet 3.

[0033] Inside the separation cylinder 1, a flow guide cylinder 6 is rotatably installed, and the flow guide cylinder 6 is coaxially arranged with the separation cylinder 1. The flow guide cylinder 6 is provided with a spiral rib 7, which extends spirally along the wall of the flow guide cylinder 6. The spiral direction of the spiral rib 7 is consistent with the direction of the vortex formed after the water enters tangentially through the inlet 5. When the flow guide cylinder 6 rotates, it drives the spiral rib 7 to rotate accordingly. The spiral rib 7 applies a rotational guide to the water flow in the outer ring vortex area in the same direction as the tangential water entry, so that the water flow in the outer ring vortex area maintains stable rotation and flows downward along the direction of the sand collection cone 2.

[0034] The purpose of the guide drum 6 and the spiral ribs 7 is not to stir and mix the sewage in the separation cylinder 1, but to cooperate with the tangential inlet vortex formed by the inlet 5 to keep the vortex direction, vortex velocity and downward flow state in the outer ring vortex area stable. The rotation speed of the guide drum 6 is matched with the inlet pressure and inlet flow rate at the inlet 5, so that the rotation of the guide drum 6 is used to cooperate with the vortex formed by the inlet pressure, rather than to form forced stirring that conflicts with the inlet vortex. The spiral ribs 7 adopt a spiral guide structure with a small to medium pitch. The pitch, number and height of the spiral ribs 7 are matched according to the diameter of the separation cylinder 1, the inlet pressure and the treatment flow rate, so that the spiral ribs 7 cooperate to generate vortex and guide the sand-containing water flow on the outside to move downward without forming obvious axial strong push.

[0035] The guide cylinder 6 is rotatably mounted inside the separation cylinder 1 via an annular support and a wear-resistant support ring. A rotational sealing structure is provided between the guide cylinder 6 and the separation cylinder 1. The rotational sealing structure includes a wear-resistant sealing ring and a labyrinth sealing section, which reduces the amount of mud and sand entering the rotational support part and causing wear or jamming when the guide cylinder 6 rotates relative to the separation cylinder 1. Limiting support structures are provided between the upper and lower ends of the guide cylinder 6 and the separation cylinder 1 to ensure that the guide cylinder 6 remains coaxial during rotation and avoids swaying.

[0036] A clear liquid outlet pipe 9 is installed on the cover 4. The clear liquid outlet pipe 9 extends downward into the separation cylinder 1 and is connected to the ultrafiltration cylinder 16 through the connecting pipe 15. The lower end of the clear liquid outlet pipe 9 is closed, and a water intake port 17 is opened on the side wall of the clear liquid outlet pipe 9 inside the separation cylinder 1. The water intake port 17 is located below the water inlet 5 and above the sand collection cone 2, so that after the sewage enters the separation cylinder 1, it needs to form a vortex separation in the separation cylinder 1 first, and then enter the clear liquid outlet pipe 9 laterally through the water intake port 17. This structure avoids the clear liquid outlet pipe 9 from directly sucking in the mud and sand near the sand collection cone 2 from the bottom, and at the same time reduces the situation where the insufficiently separated sewage that just enters the separation cylinder 1 directly enters the clear liquid outlet pipe 9.

[0037] The water intake path of the clear liquid outlet pipe 9 is a lateral water intake path; after the clear liquid reaches the height of the water intake port 17 during the swirling separation process in the separation cylinder 1, it enters the clear liquid outlet pipe 9 through the water intake port 17; after entering the clear liquid outlet pipe 9, the clear liquid then enters the ultrafiltration cartridge 16 through the connecting pipe 15; therefore, the clear liquid path of the present invention is lateral water intake through the water intake port 17, output through the clear liquid outlet pipe 9, transport through the connecting pipe 15, and filtration through the ultrafiltration cartridge 16.

[0038] A rotating sleeve 10 is fitted on the outside of the clear liquid outlet pipe 9, and the rotating sleeve 10 rotates relative to the clear liquid outlet pipe 9. A spiral guide plate 11 is provided on the rotating sleeve 10. The spiral guide plate 11 is located outside the clear liquid outlet pipe 9 and rotates synchronously with the rotating sleeve 10. The spiral guide plate 11 includes a plurality of arc-shaped plates arranged at intervals along the circumference of the rotating sleeve 10. One end of each arc-shaped plate is connected to the rotating sleeve 10, and the other end extends away from the rotating sleeve 10. Each arc-shaped plate is deflected relative to the radial direction of the rotating sleeve 10, so that the plurality of arc-shaped plates form a spiral guide structure around the rotating sleeve 10 that is adapted to the tangential water inlet direction of the water inlet 5.

[0039] The spiral guide plate 11 rotates in the same direction as the spiral rib 7, and in the same direction as the main swirling flow formed in the separation cylinder 1 after the water enters tangentially through the inlet 5. When the rotating sleeve 10 rotates, the spiral guide plate 11 rotates synchronously with the rotating sleeve 10, and applies a tangential guiding effect to the water body in the area outside the clear liquid outlet pipe 9 in the same direction as the main swirling flow, so that the water flow near the water intake 17 still maintains the same rotation trend as the outer ring swirling area. The spiral guide plate 11 is not used to transport the clear liquid upward, nor is it used to stir and mix the sewage. Instead, it works in conjunction with the tangential water entry through the inlet 5, the rotation of the guide cylinder 6, and the guidance of the spiral rib 7 to generate and maintain a stable swirling field in the separation cylinder 1.

[0040] The spiral guide plate 11 has a low-height plate structure for each arc-shaped plate, and there is a water passage gap between each arc-shaped plate to avoid blocking the swirling channel in the separation cylinder 1. The bending direction, deflection angle and installation height of each arc-shaped plate are matched according to the water inlet 5, the cylinder diameter of the separation cylinder 1 and the processing flow rate, so that the spiral guide plate 11 guides the flow to conform to and enhance the main swirling flow, without forming forced axial conveying or strong disturbance and stirring that conflict with the swirling separation.

[0041] The upper part of the rotating sleeve 10 passes through the cover 4, and a first rotating sealing structure is provided between the rotating sleeve 10 and the cover 4. The first rotating sealing structure includes a mechanical seal and a sealing gland, which reduces the leakage of sewage from the separation cylinder 1 between the rotating sleeve 10 and the cover 4 when the rotating sleeve 10 rotates relative to the cover 4. A second rotating sealing structure is provided between the inner wall of the rotating sleeve 10 and the outer wall of the clear liquid outlet pipe 9. The second rotating sealing structure includes a wear-resistant sealing ring and a sealing mounting groove, which ensures that when the rotating sleeve 10 rotates around the clear liquid outlet pipe 9, it does not affect the discharge of clear liquid from the clear liquid outlet pipe 9, and reduces the leakage of sewage along the annular gap between the rotating sleeve 10 and the clear liquid outlet pipe 9.

[0042] A connecting rod 8 is provided between the rotating sleeve 10 and the guide cylinder 6. One end of the connecting rod 8 is connected to the rotating sleeve 10, and the other end is connected to the guide cylinder 6. There are multiple connecting rods 8, which are spaced apart along the circumference of the rotating sleeve 10. When the rotating sleeve 10 rotates, the guide cylinder 6 is driven to rotate synchronously through the connecting rods 8, so that the rotating sleeve 10, the spiral guide plate 11, the guide cylinder 6, and the spiral ribs 7 keep rotating in the same direction and on the same axis. A water passage space is reserved between the multiple connecting rods 8 to avoid blocking the swirling channel in the separation cylinder 1.

[0043] The cylinder cover 4 is equipped with a drive assembly that is connected to the rotating sleeve 10. The drive assembly includes a drive motor 12 mounted on the cylinder cover 4, a drive gear 13 connected to the output end of the drive motor 12, and a driven gear ring 14 meshing with the drive gear 13. The driven gear ring 14 is sleeved and fixed to the outside of the rotating sleeve 10. When the drive motor 12 is working, it drives the drive gear 13 to rotate, the drive gear 13 drives the driven gear ring 14 to rotate, the driven gear ring 14 drives the rotating sleeve 10 to rotate, and the rotating sleeve 10 drives the guide drum 6 to rotate synchronously through the connecting rod 8. The drive motor 12 is a speed-regulating motor, so that the rotation speed of the rotating sleeve 10 and the guide drum 6 can be adjusted according to the inlet water pressure, inlet water flow rate and sewage sand content.

[0044] An inverted filter screen 19 is provided on the outside of the water inlet 17. The inverted filter screen 19 is used to perform secondary interception of the relatively clear liquid entering the clear liquid outlet pipe 9, reducing the entry of residual particles, flocs, or impurities carried by the water flow into the clear liquid outlet pipe 9. A hinge seat 18 is provided on the outer wall of the clear liquid outlet pipe 9 below the water inlet 17. The lower part of the inverted filter screen 19 is rotatably connected to the hinge seat 18 through a rotating shaft 21. The inverted filter screen 19 has a filtration position that fits and covers the water inlet 17 and a rinsing position that opens outward relative to the water inlet 17. When the inverted filter screen 19 is in the filtration position, the inverted filter screen 19 fits and covers the outside of the water inlet 17. The relatively clear liquid first passes through the inverted filter screen 19 and then enters the clear liquid outlet pipe 9 through the water inlet 17.

[0045] A guide plate 20 is provided on the flip filter screen 19. A lifting rod 22 is inserted into the clear liquid outlet pipe 9. The lower end of the lifting rod 22 is connected to a guide frame 23, and the guide frame 23 is movably engaged with the guide plate 20. The lifting rod 22 passes upward through the clear liquid outlet pipe 9 and the connecting pipe 15 and extends outward. A sliding sealing structure is provided at the position where the lifting rod 22 passes through the connecting pipe 15. The sliding sealing structure includes a sealing sleeve, a sealing ring, and a guide sealing seat, which reduces leakage of clear liquid at the point where the lifting rod 22 exits when it slides up and down relative to the connecting pipe 15. A guide sleeve is provided between the lifting rod 22 and the clear liquid outlet pipe 9 to keep the lifting rod 22 stable during up and down movement and to prevent swaying from affecting the engagement between the guide frame 23 and the guide plate 20.

[0046] When the flip filter 19 needs cleaning, pull up the lifting rod 22. The lifting rod 22 drives the guide frame 23 to move upward. The guide frame 23 acts on the guide plate 20, causing the flip filter 19 to rotate around the rotating shaft 21 from the filtration position to the rinsing position. When the flip filter 19 is in the rinsing position, the free end of the flip filter 19 deflects away from the clear liquid outlet pipe 9. At least part of the flip filter 19 is located in the downward swirling water flow path of the outer ring swirling area, and the inner side of the flip filter 19 faces the downward swirling water flow in the outer ring swirling area. At this time, the downward swirling water flow directly washes the inner side of the flip filter 19, causing the impurities attached to the flip filter 19 to fall off. The fallen impurities enter the sand collection cone 2 with the downward swirling flow and are discharged through the drain port 3.

[0047] The ultrafiltration cartridge 16 is located on one side of the separation cartridge 1. One end of the connecting pipe 15 is connected to the clear liquid outlet pipe 9, and the other end is connected to the ultrafiltration cartridge 16. An ultrafiltration membrane module is installed inside the ultrafiltration cartridge 16. The ultrafiltration membrane module is used to further filter the clear liquid entering the ultrafiltration cartridge 16, intercepting fine suspended solids, colloids, macromolecular impurities, and some microorganisms. Since the front end of the separation cartridge 1 removes larger particles and silt through cyclone separation, and reduces the particle entrainment at the water inlet 17 by flipping the filter screen 19, the particle load in the water entering the ultrafiltration cartridge 16 is reduced, which helps to reduce the risk of clogging of the ultrafiltration membrane module and the cleaning frequency.

[0048] When the present invention is in operation, sewage enters the separation cylinder 1 tangentially through the inlet 5 under the action of external pumping pressure, and an initial vortex is formed in the separation cylinder 1. The drive component drives the rotating sleeve 10 to rotate, and the rotating sleeve 10 drives the guide cylinder 6 to rotate synchronously through the connecting rod 8. The spiral ribs 7 and the spiral guide plate 11 rotate in the same direction as the main vortex formed by the inlet 5. Under the combined action of tangential water inlet, spiral ribs 7 and spiral guide plate 11, a stable vortex field is formed in the separation cylinder 1. Mud and heavier particles tend to move to the outside and enter the sand collection cone 2 with the downward vortex, and are finally discharged from the sewage outlet 3.

[0049] The separated clear liquid reaches the area where the water intake 17 is located under the action of the swirling flow field, and enters the clear liquid outlet pipe 9 laterally through the flip filter screen 19 and the water intake 17. Since the lower end of the clear liquid outlet pipe 9 is closed, the clear liquid will not enter from the bottom of the clear liquid outlet pipe 9, thereby avoiding the mud and sand in the bottom sand collection area from being directly sucked into the clear liquid outlet pipe 9. The clear liquid entering the clear liquid outlet pipe 9 enters the ultrafiltration cartridge 16 through the connecting pipe 15, and the ultrafiltration cartridge 16 completes the subsequent filtration treatment.

[0050] When the flip filter screen 19 has a lot of impurities attached, the lifting rod 22 drives the guide frame 23 to move upward. The guide frame 23 acts on the guide plate 20 and drives the flip filter screen 19 to flip outward and downward around the rotating shaft 21 to the rinsing position. After the flip filter screen 19 is opened, it is located in the downward swirling water flow path in the outer ring swirling area. The downward swirling water flow washes the inner side of the flip filter screen 19, washing away the particles, flocs or dirt attached to the flip filter screen 19 from the filter screen surface. The impurities washed off enter the sand collection cone 2 with the downward swirling flow and are discharged through the drain port 3. After cleaning, the lifting rod 22 moves in the opposite direction, so that the flip filter screen 19 re-adheres to cover the water intake port 17.

[0051] In this embodiment, the guide cylinder 6, spiral ribs 7, rotating sleeve 10, and spiral guide plate 11 form a swirling generation and swirling stabilization structure that matches the inlet pressure. Its purpose is to cooperate with the tangential water inlet to generate and maintain the swirling field in the separation cylinder 1, promote the downward movement of heavy particles along the outer side and into the sand collection cone 2, and at the same time enable the relatively clear liquid to achieve lateral water intake at the water inlet 17. The flip filter screen 19, water inlet 17, lifting rod 22, guide frame 23, and guide plate 20 form a switching lateral water intake anti-clogging structure, which reduces impurity entrainment at the water inlet 17 in the filtration state and completes the filter screen self-cleaning by means of the downward swirling water flow in the flushing state. The above structures work together to enable the equipment to achieve combined operation of swirling pre-separation, water intake anti-entrainment, filter screen self-cleaning, and ultrafiltration deep treatment in the vehicle-mounted skid space.

[0052] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment, characterized in that: The device includes a fixed frame on which a separation cylinder and an ultrafiltration cylinder are mounted. A sand collecting cone is connected to the bottom of the separation cylinder. A drain port is provided at the bottom of the sand collecting cone. A cylinder cover is provided at the top of the separation cylinder. A water inlet is provided on the side wall of the separation cylinder, which is tangentially connected to the separation cylinder. A flow guide cylinder is rotatably arranged inside the separation cylinder, and an outer ring swirling region is formed between the flow guide cylinder and the separation cylinder. The flow guide cylinder is provided with spiral ribs, which extend spirally along the wall of the flow guide cylinder. A clear liquid outlet pipe is provided on the cylinder cover. The clear liquid outlet pipe extends downward into the separation cylinder and is connected to the ultrafiltration cylinder through a connecting pipe. A rotating sleeve is fitted on the outside of the clear liquid outlet pipe. A spiral guide plate is provided on the rotating sleeve. The rotating sleeve is connected to the guide cylinder. A drive assembly that is connected to the rotating sleeve is provided on the cylinder cover. The side wall of the clear liquid outlet pipe is provided with a water inlet, and a flip filter screen is provided on the outside of the water inlet. The flip filter screen has a filtration position that fits and covers the water inlet and a rinsing position that opens outward relative to the water inlet. When the flip filter screen is in the rinsing position, at least part of the flip filter screen is located in the downward swirling water flow path of the outer ring swirling area.

2. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 1, characterized in that, The lower end of the clear liquid outlet pipe is closed, the water inlet is opened on the side wall of the clear liquid outlet pipe, the water inlet is located below the water inlet and above the sand collection cone.

3. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 2, characterized in that, The outer wall of the clear liquid outlet pipe is provided with a hinge seat located below the water inlet, and the lower part of the flip filter screen is rotatably connected to the hinge seat through a rotating shaft; when the flip filter screen is in the filtration position, the flip filter screen fits and covers the outside of the water inlet; when the flip filter screen is in the rinsing position, the flip filter screen flips around the rotating shaft and flips to the outside and downward.

4. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 3, characterized in that, When the inverted filter is in the rinsing position, the free end of the inverted filter is deflected away from the clear liquid outlet pipe, and the inner surface of the inverted filter faces the downward swirling water flow in the outer ring swirling area.

5. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 3, characterized in that, A guide plate is provided on the flip filter screen, and a lifting rod is inserted through the clear liquid outlet pipe. The lower end of the lifting rod is connected to a guide frame, and the guide frame is movably engaged with the guide plate. When the lifting rod moves upward, the guide frame drives the flip filter screen to rotate around the rotating shaft from the filtration position to the rinsing position through the guide plate.

6. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 1, characterized in that, The guide drum and the separator are coaxially arranged, and the spiral direction of the spiral ribs is consistent with the direction of the swirling flow formed in the separator after the water enters tangentially through the inlet.

7. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 6, characterized in that, A connecting rod is provided between the rotating sleeve and the guide cylinder. One end of the connecting rod is connected to the rotating sleeve, and the other end is connected to the guide cylinder. There are multiple connecting rods, which are spaced apart along the circumference of the rotating sleeve. When the rotating sleeve rotates, it drives the guide cylinder to rotate synchronously through the connecting rods.

8. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 1, characterized in that, The spiral guide plate is disposed on the outer periphery of the rotating sleeve. The spiral guide plate is located on the outer side of the lower part of the clear liquid outlet pipe, and the spiral direction of the spiral guide plate is consistent with the spiral direction of the spiral rib.

9. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 1, characterized in that, The drive assembly includes a drive motor mounted on the cylinder cover, a drive gear connected to the output end of the drive motor, and a driven gear ring meshing with the drive gear. The driven gear ring is sleeved and fixed to the outside of the rotating sleeve.

10. The vehicle-mounted skid-mounted hydrocyclone separation ultrafiltration combined wastewater treatment equipment according to claim 9, characterized in that, The ultrafiltration cartridge is located on one side of the separation cylinder. One end of the connecting pipe is connected to the clear liquid outlet pipe, and the other end is connected to the ultrafiltration cartridge. The fixing frame is a frame-type skid-mounted frame.

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