Surface wastewater treatment device having sludge compression function

Abstract

The present application discloses a kind of surface wastewater treatment equipment with sludge compression function, the present application relates to wastewater treatment equipment technical field, the wastewater treatment equipment includes box, case, mud removal mechanism, separation mechanism, short line mechanism and reverse osmosis membrane tube, mud removal mechanism includes assembly frame, outer tube, compression mechanism and condensation mechanism, compression mechanism includes inner sleeve, condensation mechanism also includes reagent tank, separation mechanism includes trifurcated pipe and infusion tube, short line mechanism includes water inlet basin, first pump pipe and ceramic ultrafilter, case, assembly frame, reagent tank, water inlet basin, ceramic ultrafilter are all fixedly connected with box, outer tube is fixedly connected with first pump pipe, trifurcated pipe is fixedly connected with inner sleeve, infusion tube is fixedly connected with trifurcated pipe, ceramic ultrafilter, reverse osmosis membrane tube is fixedly connected with ceramic ultrafilter, case is connected with mud removal mechanism, separation mechanism, short line mechanism all by electric signal;The present application monitors sludge amount, switches double short line mode, greatly improves wastewater treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, specifically a surface wastewater treatment device with sludge compression function. Background Technology

[0002] Wastewater treatment equipment is a core component of modern environmental protection and public health systems. Its core purpose is to remove pollutants from domestic sewage, industrial wastewater, or agricultural runoff using physical, chemical, and biological methods, ensuring that the treated water meets discharge standards or reuse requirements, thereby protecting aquatic ecosystems and human health. With accelerated industrialization and urbanization, wastewater discharge volumes have increased dramatically and its composition has become increasingly complex, placing higher demands on treatment technologies. Traditional simple methods such as sedimentation and filtration are no longer sufficient, driving the continuous development of efficient, integrated, and automated wastewater treatment equipment.

[0003] Modern wastewater treatment systems are mostly multi-stage, multi-process combinations. Ceramic ultrafiltration membranes, as an innovative breakthrough in material filtration, possess excellent filtration efficiency for small-molecule pollutants in wastewater, and also offer advantages such as long service life and stable filtration performance. However, their ability to treat sludge impurities in wastewater is limited; large amounts of sludge adhesion can significantly reduce membrane filtration performance, and adding filter screens to filter sludge also faces the technical challenge of sludge sticking to the filter screen. Summary of the Invention

[0004] The purpose of this invention is to provide a surface wastewater treatment device with sludge compression function to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A surface wastewater treatment device with sludge compression function includes a housing, a chassis, a sludge removal mechanism, a separation mechanism, a short-line mechanism, and a reverse osmosis membrane tube. The sludge removal mechanism includes an assembly frame, an outer tube, a compression mechanism, and a coagulation mechanism. The compression mechanism includes an inner sleeve, and the coagulation mechanism also includes a reagent tank. The separation mechanism includes a three-way pipe and a delivery pipe. The short-line mechanism includes an inlet pool, a first pump pipe, and a ceramic ultrafilter. The chassis, assembly frame, reagent tank, inlet pool, and ceramic ultrafilter are all fixedly connected to the housing. The outer tube is fixedly connected to the first pump pipe. The three-way pipe is fixedly connected to the inner sleeve. The delivery pipe is fixedly connected to the three-way pipe and the ceramic ultrafilter. The reverse osmosis membrane tube is fixedly connected to the ceramic ultrafilter. The chassis is connected to the sludge removal mechanism, the separation mechanism, and the short-line mechanism via electrical signals.

[0006] This invention enables rapid short-line filtration of wastewater by switching filtration modes. Surface wastewater is fed into an inlet tank for settling, allowing impurities to initially settle. The filtration mode is switched based on the level of sludge impurities in the wastewater. If the sludge content in the wastewater still exceeds the set standard after settling, the control unit sends a control signal to the first pump pipe, pumping the wastewater with excessive sludge content to the outer pipe. A compression mechanism performs segmented spiral agitation on the wastewater flowing radially along the outer pipe axis, creating a vortex state for the sludge-containing wastewater. A coagulation mechanism evenly injects a sedimentation binder into the vortex, compressing the sludge into blocks under the action of the sedimentation agent. The separation mechanism then feeds the sludge-free wastewater into a ceramic ultrafilter, filtering out small particles to obtain purified water that meets the required standards. When the sludge content in the wastewater is within the filtration range of the ceramic ultrafilter after settling, the wastewater is directly fed into the ceramic ultrafilter for filtration and output through the reverse osmosis membrane.

[0007] Furthermore, the sludge removal mechanism also includes a backflushing mechanism and a sealing sleeve, the compression mechanism also includes a segmented pipe, a drive motor and a rotating drum, the segmented pipe is provided with an assembly orifice plate, the backflushing mechanism includes a primary filter screen, the inner sleeve, the assembly orifice plate, the primary filter screen and the sealing sleeve are all fixedly connected to the outer pipe, the condensation mechanism also includes a high-pressure pump, a connecting pipe and an annular chamber, the outer pipe is provided with a side hole, the connecting pipe is fixedly connected to the side hole and the assembly orifice plate, the annular chamber is rotatably connected to the rotating drum, and the drive motor and the high-pressure pump are both connected to the chassis via electrical signals.

[0008] If the sludge content in the wastewater still exceeds the set standard value after settling, the control signal from the chassis is sent to the first pump pipe, which pumps the wastewater with excessive sludge content to the outer pipe. The sludge wastewater undergoes preliminary filtration through the primary filter screen of the backwash mechanism, and then enters a sealed space composed of a sealing sleeve, segmented pipes, a rotating drum, and an inner sleeve. The control signal from the chassis is sent to the drive motor and the high-pressure pump. The drive motor drives the rotating drum to rotate, which performs segmented spiral agitation on the wastewater flowing radially along the outer pipe axis, causing the sludge-containing wastewater to form a vortex. The high-pressure pump evenly injects a settling binder into the wastewater vortex, causing the sludge in the wastewater to be compressed into blocks by the vortex under the action of the settling agent.

[0009] Furthermore, the compression mechanism also includes a multi-gear rod, a drive motor fixedly connected to the inner sleeve, an output end of the drive motor fixedly connected to the multi-gear rod, and several groups of segmented pipes and rotating drums. The several groups of segmented pipes and rotating drums are linearly and evenly distributed along the axis of the outer pipe. The segmented pipes and rotating drums are arranged in a cross pattern, and adjacent rotating drums are in contact. An external gear ring is provided on the rotating drum, and the multi-gear rod meshes with the tooth surface of the external gear ring. The rotating drum is rotatably connected to the segmented pipe.

[0010] The drive motor outputs fixed-axis torque to the multi-gear rod, which meshes with the tooth surface of the outer gear ring on the rotating drum. The multi-gear rod transmits torque to the rotating drum, and the surfaces of adjacent rotating drums are in contact. The rotating drums rotate in adjacent, cross-arranged segmented pipes to seal the axial channel formed by the rotating drums. Several groups of rotating drums, linearly and evenly distributed along the outer pipe axis, rotate coaxially and at the same speed, performing spiral agitation on the sewage segments flowing radially along the outer pipe axis.

[0011] Furthermore, the rotating drum is also provided with eccentric circular holes and flow channels. Adjacent eccentric circular holes are arranged in a spiral line along the outer tube axis. The condensation mechanism also includes a one-way valve and a coating device. Several sets of flow channels, one-way valves, and coating devices are provided. Several sets of flow channels are evenly distributed along the circumference of the eccentric circular holes. The one-way valves and coating devices are fixedly connected to the flow channels.

[0012] A drive motor drives several sets of rotating drums, linearly and evenly distributed along the outer pipe axis, to rotate coaxially and at the same speed. Eccentric circular holes are provided inside the rotating drums, with adjacent eccentric holes arranged spirally along the outer pipe axis. This means that rotating drums of the same specification have different initial meshing positions with the multi-gear rod, causing adjacent eccentric holes to deflect at the cross-section of the rotating drum. The several sets of rotating drums rotate coaxially and at the same speed, rotating around a fixed axis around the outer pipe axis. The inner wall of the eccentric circular holes causes eccentric rotation on the radially flowing wastewater along the outer pipe axis, generating a centripetal force on the cross-section of the radially flowing wastewater pointing towards the outer pipe axis. This causes the sludge in the wastewater to gather towards the center. Through the adjacent eccentric circular holes in the several sets of rotating drums linearly and evenly distributed along the outer pipe axis, the radially flowing wastewater undergoes segmented eccentric rotation, creating a long-line vortex. The coagulation mechanism evenly injects a precipitant into the eccentric circular holes through the flow channel. Under the action of the precipitant, the centripetal force of the vortex compresses the sludge, causing the sludge in the wastewater to be compressed into blocks by the vortex under the action of the precipitant.

[0013] Furthermore, the annular chamber is connected to the flow channel, the connecting pipe is fixedly connected to both the reagent container and the annular chamber, and the high-pressure pump is fixedly connected to the reagent container.

[0014] A high-pressure pump pumps the precipitant from the reagent tank into the annular chamber through a connecting pipe. The precipitant in the annular chamber passes through a one-way valve in the flow channel. Under the action of the coating device, the precipitant is wrapped by the biodegradable membrane and passes into the eccentric circular hole. After adsorbing the sludge in the wastewater, the biodegradable membrane hydrolyzes. The sludge in the wastewater is aggregated under the action of the settling agent. The sludge is rapidly compressed by the centripetal force generated by the eccentric circular hole.

[0015] Furthermore, the backflushing mechanism also includes a spring seat and a slide. The spring seat is fixedly connected to the primary filter screen and the slide. The slide is equipped with an arc plate and a striker. Several sets of spring seats, arc plates, and strikers are provided. The several sets of spring seats, arc plates, and strikers are evenly distributed along the circumference of the primary filter screen. The striker is located on the side of the slide close to the primary filter screen.

[0016] Wastewater with excessive sludge content is pumped out to the outer pipe through the first pump pipe. The sludge wastewater undergoes preliminary filtration through the primary filter screen, isolating larger impurities outside the primary filter screen. After passing through the primary filter screen, the wastewater impacts the arc plate, causing the slide to stretch the spring seat away from the primary filter screen. When the filtration operation ends and pumping stops, the slide returns to its original position under the restoring deformation of the spring seat, and the impact pin strikes the primary filter screen to prevent a large amount of impurities from adhering to the primary filter screen, causing blockage and affecting filtration efficiency.

[0017] Furthermore, the separation mechanism also includes a secondary filter screen, an electrically controlled valve plate, a liquid pump, and a discharge pipe. The secondary filter screen, the electrically controlled valve plate, the liquid delivery pipe, and the discharge pipe are all fixedly connected to the three-way pipe. The liquid pump is fixedly connected to the liquid delivery pipe. The electrically controlled valve plate and the liquid pump are both connected to the chassis via electrical signals.

[0018] The sludge in the wastewater is compressed into clumps by the vortex under the action of the precipitant. It is then pumped into the three-way pipe by the pump. The clumped sludge is blocked by the secondary filter screen. The sludge-free wastewater passes through the secondary filter screen and is introduced into the ceramic ultrafilter through the delivery pipe. After filtration is completed, the chassis sends a control signal to the electric control valve plate. The electric control valve plate opens and the clumped sludge is discharged through the discharge pipe.

[0019] Furthermore, the short-line mechanism also includes a mud monitor and a second pump pipe. The mud monitor, the first pump pipe, and the second pump pipe are all fixedly connected to the inlet pool. The second pump pipe is fixedly connected to the ceramic ultrafiltration unit. The mud monitor, the first pump pipe, and the second pump pipe are all connected to the chassis via electrical signals.

[0020] Wastewater undergoes initial sedimentation in the inlet tank. A sludge monitor detects the sludge impurity content in the wastewater. If the content exceeds the set standard value after sedimentation, the control unit sends a control signal to the first pump pipe. Wastewater with excessive sludge content is then pumped out through the first pump pipe to the compression and separation mechanisms, and then into the ceramic ultrafiltration unit. This filters out small particles in the wastewater to obtain purified water that meets the required standards. If the sludge content in the wastewater is within the filtration range of the ceramic ultrafiltration unit after sedimentation, the wastewater is directly fed into the ceramic ultrafiltration unit to complete filtration and is then output through the reverse osmosis membrane pipe.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention designs a compression mechanism, which drives several sets of rotating drums linearly and evenly distributed along the outer pipe axis to rotate coaxially and at the same speed through a drive motor. Eccentric circular holes are provided inside the rotating drums, with adjacent eccentric circular holes arranged spirally along the outer pipe axis. That is, rotating drums of the same specification have different initial meshing positions with the multi-gear rod, and adjacent eccentric circular holes deflect at the cross-section of the rotating drum. Several sets of rotating drums rotate coaxially and at the same speed, rotating around a fixed axis around the outer pipe axis. The inner wall of the eccentric circular hole causes eccentric rotation on the wastewater flowing radially along the outer pipe axis, generating a centripetal force pointing towards the outer pipe axis on the cross-section of the radially flowing wastewater, causing the sludge in the wastewater to accumulate towards the center. The radially flowing wastewater undergoes segmented eccentric rotation, making the radially flowing wastewater form a long-line vortex. The precipitant is pumped into the annular chamber through a connecting pipe. The precipitant in the annular chamber passes through a one-way valve in the flow channel, and under the action of the coating device, the precipitant is encapsulated by a biodegradable film and enters the eccentric circular hole. After adsorbing sludge from wastewater, the biodegradable membrane hydrolyzes the sludge, which then aggregates under the action of a settling agent and is compressed by the centripetal force of a vortex under the action of a precipitant. This significantly improves the efficiency of sludge compression and filtration in wastewater. The invention employs a short-line mechanism: the wastewater undergoes initial sedimentation in the inlet tank, and a sludge monitor detects the sludge impurity content. If the sludge content exceeds a set standard, the wastewater is pumped through a first pump pipe to the compression and separation mechanisms, then into a ceramic ultrafiltration unit. This filters out small particles in the wastewater to obtain purified water that meets the required standards. If the sludge content is within the filtration range of the ceramic ultrafiltration unit, the wastewater is directly fed into the unit for filtration and output through a reverse osmosis membrane. This invention monitors the sludge content in the wastewater and switches between dual short-line operating modes based on this content. Combined with the sludge removal mechanism, this rapidly compresses the sludge and the ceramic ultrafiltration unit, significantly improving wastewater purification and treatment efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the sludge removal mechanism of the present invention; Figure 3 This is a schematic diagram of the compression mechanism structure of the present invention; Figure 4 This is a partial cross-sectional view of the compression mechanism of the present invention; Figure 5 This is a schematic diagram of the condensation mechanism of the present invention; Figure 6 for Figure 5 A magnified view of part A; Figure 7 This is a schematic diagram of the recoil mechanism structure of the present invention; Figure 8 This is a schematic diagram of the separation mechanism of the present invention; Figure 9This is a schematic diagram of the short-line mechanism structure of the present invention.

[0023] In the diagram: 1. Housing; 2. Chassis; 3. Sludge removal mechanism; 31. Assembly frame; 32. Outer pipe; 321. Side hole; 33. Compression mechanism; 331. Inner sleeve; 332. Segmented pipe; 3321. Assembly orifice plate; 333. Drive motor; 334. Multi-gear rod; 335. Rotary drum; 3351. External gear ring; 3352. Eccentric circular hole; 3353. Flow channel; 34. Coagulation mechanism; 341. Reagent tank; 342. High-pressure pump; 343. Connecting pipe; 344. Annular chamber; 345. One-way valve 346. Coating unit; 35. Backflushing mechanism; 351. Primary filter screen; 352. Spring seat; 353. Slide; 3531. Arc plate; 3532. Impact pin; 36. Sealing sleeve; 4. Separation mechanism; 41. Three-way pipe; 42. Secondary filter screen; 43. Electrically controlled valve plate; 44. Infusion pipe; 45. Liquid pump; 46. Discharge pipe; 5. Short-line mechanism; 51. Water inlet tank; 52. Slurry monitor; 53. First pump pipe; 54. Second pump pipe; 55. Ceramic ultrafiltration unit; 6. Reverse osmosis membrane tube. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1 , Figure 2 , Figure 9 As shown, the present invention provides a technical solution for a surface wastewater treatment device with sludge compression function, comprising a housing 1, a chassis 2, a sludge removal mechanism 3, a separation mechanism 4, a short-line mechanism 5, and a reverse osmosis membrane tube 6. The sludge removal mechanism 3 includes an assembly frame 31, an outer pipe 32, a compression mechanism 33, and a coagulation mechanism 34. The compression mechanism 33 includes an inner sleeve 331. The coagulation mechanism 34 also includes a reagent tank 341. The separation mechanism 4 includes a three-way pipe 41 and a delivery pipe 44. The short-line mechanism 5 includes an inlet pool 51. The first pump pipe 53 and the ceramic ultrafilter 55, the chassis 2, the assembly frame 31, the reagent tank 341, the water inlet pool 51, and the ceramic ultrafilter 55 are all fixedly connected to the housing 1. The outer pipe 32 is fixedly connected to the first pump pipe 53. The three-way pipe 41 is fixedly connected to the inner sleeve 331. The infusion pipe 44 is fixedly connected to the three-way pipe 41 and the ceramic ultrafilter 55. The reverse osmosis membrane pipe 6 is fixedly connected to the ceramic ultrafilter 55. The chassis 2 is connected to the sludge removal mechanism 3, the separation mechanism 4, and the short-line mechanism 5 via electrical signals.

[0026] This invention performs rapid short-line filtration of wastewater by switching filtration modes. Surface wastewater is introduced into the inlet tank 51 for settling, allowing impurities to initially settle. The filtration mode is switched by detecting sludge impurities in the wastewater. If the sludge content in the wastewater still exceeds the set standard value after settling, the control unit 2 sends a control signal to the first pump pipe 53, pumping the wastewater with excessive sludge content through the first pump pipe 53 to the outer pipe 32. The compression mechanism 33 performs segmented spiral agitation on the wastewater flowing radially along the axis of the outer pipe 32. The process creates a vortex in the sludge-containing wastewater. A sedimentation binder is evenly injected into the vortex through the coagulation mechanism 34, causing the sludge in the wastewater to be compressed into blocks by the vortex under the action of the sedimentation agent. The wastewater containing the sludge is then passed through the separation mechanism 4 into the ceramic ultrafilter 55, where small particles in the wastewater are filtered to obtain purified water that meets the required standards. When the sludge content in the wastewater is within the filtration range of the ceramic ultrafilter 55 after settling, the wastewater is directly passed into the ceramic ultrafilter 55 to complete the filtration and is output through the reverse osmosis membrane tube 6.

[0027] like Figure 2 , Figure 3 , Figure 7 As shown, the sludge removal mechanism 3 also includes a backflushing mechanism 35 and a sealing sleeve 36. The compression mechanism 33 also includes a segmented pipe 332, a drive motor 333, and a rotating drum 335. The segmented pipe 332 is provided with an assembly perforated plate 3321. The backflushing mechanism 35 includes a primary filter screen 351. The inner sleeve 331, the assembly perforated plate 3321, the primary filter screen 351, and the sealing sleeve 36 are all fixedly connected to the outer pipe 32. The condensation mechanism 34 also includes a high-pressure pump 342, a connecting pipe 343, and an annular chamber 344. The outer pipe 32 is provided with a side hole 321. The connecting pipe 343 is fixedly connected to the side hole 321 and the assembly perforated plate 3321. The annular chamber 344 is rotatably connected to the rotating drum 335. The drive motor 333 and the high-pressure pump 342 are both connected to the casing 2 via electrical signals.

[0028] When the sludge content in the wastewater is still higher than the set standard value after settling, the control signal of the chassis 2 is sent to the first pump pipe 53, and the wastewater with excessive sludge content is pumped out to the outer pipe 32 through the first pump pipe 53. The sludge wastewater is initially filtered by the first-stage filter screen 351 of the backwash mechanism 35, and then passed into the sealed space composed of the sealing sleeve 36, the segmented pipe 332, the rotating drum 335, and the inner sleeve 331. The control signal of the chassis 2 is sent to the drive motor 333 and the high-pressure pump 342. The drive motor 333 drives the rotating drum 335 to rotate, and performs segmented spiral agitation on the wastewater flowing radially along the axis of the outer pipe 32, so that the sludge-containing wastewater is in a vortex state. The high-pressure pump 342 evenly injects a settling binder into the wastewater vortex, so that the sludge in the wastewater is compressed into blocks by the vortex under the action of the settling agent.

[0029] like Figure 2 , Figure 3As shown, the compression mechanism 33 also includes a multi-gear rod 334, a drive motor 333 fixedly connected to the inner sleeve 331, and the output end of the drive motor 333 fixedly connected to the multi-gear rod 334. The segmented pipe 332 and the rotating drum 335 are each provided with several groups. The several groups of segmented pipes 332 and rotating drums 335 are linearly and evenly distributed along the axis of the outer pipe 32. The segmented pipes 332 and the rotating drums 335 are arranged crosswise, and adjacent rotating drums 335 are in contact. The rotating drum 335 is provided with an external gear ring 3351. The multi-gear rod 334 meshes with the tooth surface of the external gear ring 3351. The rotating drum 335 is rotatably connected to the segmented pipe 332.

[0030] The drive motor 333 outputs fixed-axis torque to the multi-gear rod 334. Through the meshing of the tooth surfaces between the multi-gear rod 334 and the outer toothed ring 3351 on the rotating drum 335, the multi-gear rod 334 transmits torque to the rotating drum 335. The surfaces of adjacent rotating drums 335 are in contact. The rotating drums 335 rotate within the adjacent cross-arranged segmented pipes 332 to seal the axial channel formed by the rotating drums 335. Several sets of rotating drums 335, which are linearly and evenly distributed along the axis of the outer pipe 32, rotate coaxially and at the same speed, and perform spiral agitation on the sewage flowing radially along the axis of the outer pipe 32.

[0031] like Figure 4 , Figure 5 As shown, the rotating drum 335 is also provided with an eccentric circular hole 3352 and a flow channel 3353. Adjacent eccentric circular holes 3352 are arranged in a spiral line along the axis of the outer tube 32. The condensation mechanism 34 also includes a one-way valve 345 and a coating device 346. The flow channel 3353, the one-way valve 345, and the coating device 346 are provided in several groups. The several groups of flow channels 3353 are evenly distributed along the circumference of the eccentric circular hole 3352. The one-way valve 345 and the coating device 346 are both fixedly connected to the flow channel 3353.

[0032] The drive motor 333 drives several sets of rotating drums 335, linearly and evenly distributed along the axis of the outer pipe 32, to rotate coaxially and at the same speed. Eccentric circular holes 3352 are provided inside the rotating drums 335, with adjacent eccentric circular holes 3352 arranged spirally along the axis of the outer pipe 32. That is, the initial meshing positions of the rotating drums 335 of the same specification with the multi-gear rod 334 are different, causing adjacent eccentric circular holes 3352 to deflect at the cross-section of the rotating drum 335. Several sets of rotating drums 335 rotate coaxially and at the same speed, rotating around the axis of the outer pipe 32. The inner wall of the eccentric circular holes 3352 causes eccentric rotation of the wastewater flowing radially along the axis of the outer pipe 32, affecting the cross-section of the radially flowing wastewater. A centripetal force is generated on the surface pointing towards the axis of the outer pipe 32, causing the sludge in the wastewater to gather towards the center. Through several sets of adjacent eccentric circular holes 3352 in the rotating cylinders 335 linearly and evenly distributed along the axis of the outer pipe 32, the radially flowing wastewater is rotated in segments to form a long-line vortex. The coagulation mechanism 34 uniformly injects precipitant into the eccentric circular holes 3352 through the flow channel 3353. Under the action of the precipitant, the centripetal force of the vortex compresses the sludge, causing the sludge in the wastewater to be compressed into blocks by the vortex under the action of the precipitant.

[0033] like Figure 2 , Figure 5 , Figure 6 As shown, the annular chamber 344 is connected to the flow channel 3353, the connecting pipe 343 is fixedly connected to the reagent tank 341 and the annular chamber 344, and the high-pressure pump 342 is fixedly connected to the reagent tank 341.

[0034] High-pressure pump 342 pumps the precipitant in reagent tank 341 into annular chamber 344 through connecting pipe 343. The precipitant in annular chamber 344 passes through one-way valve 345 in flow channel 3353. Under the action of coating device 346, the precipitant is wrapped by biodegradable membrane and enters eccentric circular hole 3352. After adsorbing sludge in wastewater, biodegradable membrane hydrolyzes. The sludge in wastewater is aggregated under the action of settling agent and rapidly compressed by vortex centripetal force generated through eccentric circular hole 3352.

[0035] like Figure 7 As shown, the backwash mechanism 35 also includes a spring seat 352 and a slide 353. The spring seat 352 is fixedly connected to the primary filter screen 351 and the slide 353. The slide 353 is provided with an arc plate 3531 and a striker 3532. The spring seat 352, the arc plate 3531, and the striker 3532 are provided in several groups. The several groups of spring seats 352, arc plates 3531, and strikers 3532 are evenly distributed along the circumference of the primary filter screen 351. The striker 3532 is located on the side of the slide 353 close to the primary filter screen 351.

[0036] Wastewater with excessive sludge content is pumped from the first pump pipe 53 to the outer pipe 32. The sludge wastewater undergoes preliminary filtration through the primary filter screen 351, isolating larger impurities outside the primary filter screen 351. After passing through the primary filter screen 351, the wastewater impacts the arc plate 3531, causing the slide 353 to stretch the spring seat 352 away from the primary filter screen 351. When the filtration operation ends and pumping stops, the slide 353 returns to its original position under the restoring deformation of the spring seat 352, and the impact pin 3532 strikes the primary filter screen 351, preventing a large amount of impurities from adhering to the primary filter screen 351, causing blockage and affecting filtration efficiency.

[0037] like Figure 8 As shown, the separation mechanism 4 also includes a secondary filter screen 42, an electric control valve plate 43, a liquid pump 45, and a discharge pipe 46. The secondary filter screen 42, the electric control valve plate 43, the liquid delivery pipe 44, and the discharge pipe 46 are all fixedly connected to the three-way pipe 41. The liquid pump 45 is fixedly connected to the liquid delivery pipe 44. The electric control valve plate 43 and the liquid pump 45 are both connected to the chassis 2 via electrical signals.

[0038] The sludge in the wastewater is compressed into clumps by the vortex under the action of the precipitant. It is then pumped into the three-way pipe 41 by the pump 45. The clumped sludge is blocked by the secondary filter screen 42. The sludge-free wastewater passes through the secondary filter screen 42 and is introduced into the ceramic ultrafilter 55 through the delivery pipe 44. After filtration is completed, the chassis 2 sends a control signal to the electric control valve plate 43. The electric control valve plate 43 opens and the clumped sludge is discharged through the discharge pipe 46.

[0039] like Figure 9 As shown, the short-line mechanism 5 also includes a mud monitor 52 and a second pump pipe 54. The mud monitor 52, the first pump pipe 53, and the second pump pipe 54 are all fixedly connected to the inlet pool 51. The second pump pipe 54 is fixedly connected to the ceramic ultrafilter 55. The mud monitor 52, the first pump pipe 53, and the second pump pipe 54 are all connected to the chassis 2 via electrical signals.

[0040] Wastewater undergoes initial sedimentation in the inlet tank 51. The sludge monitor 52 detects the sludge impurity content in the wastewater. If the content exceeds the set standard value after sedimentation, the control unit 2 sends a control signal to the first pump pipe 53. Wastewater with excessive sludge content is pumped out through the first pump pipe 53 to the compression mechanism 33 and the separation mechanism 4, and then into the ceramic ultrafilter 55. The small particles in the wastewater are filtered to obtain purified water that meets the required standards. When the sludge content in the wastewater is within the filtration range of the ceramic ultrafilter 55 after sedimentation, the wastewater is directly fed into the ceramic ultrafilter 55 to complete filtration and is output through the reverse osmosis membrane pipe 6.

[0041] The working principle of this invention is as follows: Wastewater is initially settled in the inlet tank 51. The sludge monitor 52 detects the impurity content of the sludge. When the sludge content exceeds a set standard value, the control unit 2 sends a feedback control signal, and the wastewater is pumped out through the first pump pipe 53 to the outer pipe 32. The sludge wastewater undergoes preliminary filtration through the primary filter screen 351. The drive motor 333 drives several sets of rotating drums 335, linearly and evenly distributed along the axis of the outer pipe 32, to rotate coaxially and at the same speed. The rotating drums 335 are equipped with eccentric circular holes 335. 2. Adjacent eccentric circular holes 3352 are arranged spirally along the axis of the outer pipe 32. That is, the initial meshing positions of the rotating drum 335 and the multi-gear rod 334 of the same specification are different. Adjacent eccentric circular holes 3352 are deflected in the cross-section of the rotating drum 335. Several sets of rotating drums 335 rotate coaxially and at the same speed. The rotating drum 335 rotates around the axis of the outer pipe 32. The inner wall of the eccentric circular hole 3352 rotates eccentrically on the sewage flowing radially along the axis of the outer pipe 32, producing a finger-like effect on the cross-section of the radially flowing sewage. The centripetal force along the axis of the outer pipe 32 causes the sludge in the wastewater to gather towards the center. This creates a segmented eccentric rotation of the radially flowing wastewater, resulting in a long-line vortex. The precipitant is pumped into the annular chamber 344 through the connecting pipe 343. The precipitant in the annular chamber 344 passes through the one-way valve 345 in the flow channel 3353. Under the action of the coating device 346, the precipitant is encapsulated by the biodegradable membrane and enters the eccentric circular hole 3352. After adsorbing the sludge in the wastewater, the biodegradable membrane hydrolyzes, and the wastewater... Sludge in the water aggregates under the action of the precipitant and is compressed by the centripetal force of the vortex under the action of the precipitant. The sludge in the wastewater is compressed into blocks by the vortex under the action of the precipitant. The separation mechanism 4 separates the sludge quickly, and the wastewater is passed into the ceramic ultrafiltration membrane 55 to filter out small particles and obtain purified water that meets the required standards. When the sludge content in the wastewater is within the filtration range of the ceramic ultrafiltration membrane 55 after settling, the wastewater is directly passed into the ceramic ultrafiltration membrane 55 to complete the filtration and is output by the reverse osmosis membrane tube 6.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A surface wastewater treatment device with sludge compression function, characterized in that: The wastewater treatment equipment includes a housing (1), a chassis (2), a sludge removal mechanism (3), a separation mechanism (4), a short-line mechanism (5), and a reverse osmosis membrane tube (6). The sludge removal mechanism (3) includes an assembly frame (31), an outer tube (32), a compression mechanism (33), and a coagulation mechanism (34). The compression mechanism (33) includes an inner sleeve (331). The coagulation mechanism (34) also includes a reagent tank (341). The separation mechanism (4) includes a three-way pipe (41) and an infusion pipe (44). The short-line mechanism (5) includes an inlet tank (51), a first pump pipe (53), and a ceramic ultrafiltration unit. (55), the chassis (2), assembly frame (31), reagent tank (341), water inlet pool (51), and ceramic ultrafilter (55) are all fixedly connected to the box body (1), the outer pipe (32) is fixedly connected to the first pump pipe (53), the three-way pipe (41) is fixedly connected to the inner sleeve (331), the infusion pipe (44) is fixedly connected to the three-way pipe (41) and the ceramic ultrafilter (55), the reverse osmosis membrane pipe (6) is fixedly connected to the ceramic ultrafilter (55), and the chassis (2) is connected to the sludge removal mechanism (3), the separation mechanism (4), and the short-line mechanism (5) via electrical signals; The sludge removal mechanism (3) further includes a backflushing mechanism (35) and a sealing sleeve (36). The compression mechanism (33) further includes a segmented pipe (332), a drive motor (333), and a rotating drum (335). The segmented pipe (332) is provided with an assembly perforated plate (3321). The backflushing mechanism (35) includes a primary filter screen (351). The inner sleeve (331), the assembly perforated plate (3321), the primary filter screen (351), and the sealing sleeve (36) are all connected to the outer... The pipe (32) is fixedly connected. The condensation mechanism (34) also includes a high-pressure pump (342), a connecting pipe (343) and an annular chamber (344). The outer pipe (32) is provided with a side hole (321). The connecting pipe (343) is fixedly connected to the side hole (321) and the assembly hole plate (3321). The annular chamber (344) is rotatably connected to the rotating drum (335). The drive motor (333) and the high-pressure pump (342) are both connected to the chassis (2) by electrical signals. The compression mechanism (33) also includes a multi-gear rod (334). The drive motor (333) is fixedly connected to the inner sleeve (331). The output end of the drive motor (333) is fixedly connected to the multi-gear rod (334). The segmented pipe (332) and the rotating drum (335) are provided with several groups. The several groups of segmented pipes (332) and rotating drums (335) are linearly and evenly distributed along the axis of the outer pipe (32). The segmented pipes (332) and the rotating drums (335) are arranged crosswise. Adjacent rotating drums (335) are in contact with each other. The rotating drum (335) is provided with an external gear ring (3351). The multi-gear rod (334) meshes with the tooth surface of the external gear ring (3351). The rotating drum (335) is rotatably connected to the segmented pipe (332). The rotating drum (335) is also provided with an eccentric circular hole (3352) and a flow channel (3353), and the adjacent eccentric circular holes (3352) are arranged in a spiral line along the axis of the outer tube (32).

2. The surface wastewater treatment equipment with sludge compression function according to claim 1, characterized in that: The condensation mechanism (34) also includes a one-way valve (345). The flow channel (3353) and the one-way valve (345) are provided in several groups. The flow channels (3353) are evenly distributed around the circumference of the eccentric circular hole (3352). The one-way valve (345) is fixedly connected to the flow channel (3353).

3. A surface wastewater treatment device with sludge compression function according to claim 2, characterized in that: The annular chamber (344) is connected to the flow channel (3353), the connecting pipe (343) is fixedly connected to the reagent tank (341) and the annular chamber (344), and the high-pressure pump (342) is fixedly connected to the reagent tank (341).

4. A surface wastewater treatment device with sludge compression function according to claim 1, characterized in that: The recoil mechanism (35) further includes a spring seat (352) and a slide (353). The spring seat (352) is fixedly connected to the primary filter screen (351) and the slide (353). The slide (353) is provided with an arc plate (3531) and a striker (3532). The spring seat (352), arc plate (3531), and striker (3532) are provided in several groups. The several groups of spring seats (352), arc plates (3531), and strikers (3532) are evenly distributed along the circumference of the primary filter screen (351). The striker (3532) is located on the side of the slide (353) close to the primary filter screen (351).

5. A surface wastewater treatment device with sludge compression function according to claim 1, characterized in that: The separation mechanism (4) also includes a secondary filter screen (42), an electric control valve plate (43), a liquid pump (45), and a discharge pipe (46). The secondary filter screen (42), the electric control valve plate (43), the liquid infusion pipe (44), and the discharge pipe (46) are all fixedly connected to the three-way pipe (41). The liquid pump (45) is fixedly connected to the liquid infusion pipe (44). The electric control valve plate (43) and the liquid pump (45) are both connected to the chassis (2) via electrical signals.

6. A surface wastewater treatment device with sludge compression function according to claim 1, characterized in that: The short-line mechanism (5) also includes a mud monitor (52) and a second pump pipe (54). The mud monitor (52), the first pump pipe (53), and the second pump pipe (54) are all fixedly connected to the water inlet pool (51). The second pump pipe (54) is fixedly connected to the ceramic ultrafilter (55). The mud monitor (52), the first pump pipe (53), and the second pump pipe (54) are all connected to the chassis (2) via electrical signals.

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