Excrement treatment mechanism and ecological regulation device

Abstract

The present application provides a kind of excrement treatment mechanism and ecological regulation device, belong to excrement recycling device technical field, including chassis assembly, filter residue grid assembly, unloading auger component, filter cartridge assembly, follow-up scraper assembly, internal cleaning component and external cleaning component, filter residue grid assembly can be with filter cartridge assembly Double filter system is formed, solid-liquid separation is formed to excrement, so that the solid excrement after being separated falls into material residue collection cover, liquid excrement is collected into second collecting groove, and cooperate with the inclined rotation of main solid ring and opposite solid ring itself, both can form the rotary separation action of filter cartridge with main solid ring as reference, and can form the scraping action of follow-up scraper assembly on filter cartridge inner wall when main solid ring and opposite solid ring drive filter cartridge to dump material residue collection cover, form the automatic exclusion of solid excrement separated by filter cartridge, and cooperate with the use of internal cleaning component and external cleaning component, can guarantee the effectiveness of filter residue grid belt and filter cartridge filtration.

Description

Technical Field

[0001] This invention relates to the field of fecal waste recycling devices, and particularly to a fecal waste treatment mechanism and an ecological control device. Background Technology

[0002] With the rapid development of the tourism industry, especially during the peak summer season, popular scenic spots, campsites, and resorts often face a surge in tourist numbers. This highly concentrated population activity directly leads to a dramatic increase in the generation and instantaneous peak of domestic sewage, particularly fecal waste. Traditional centralized sewage treatment plants are often unable to effectively treat this dispersed and highly seasonally fluctuating fecal waste due to insufficient pipe network coverage, limited treatment capacity, or remote locations.

[0003] Existing decentralized sewage treatment equipment mainly consists of septic tanks, which rely primarily on gravity sedimentation and anaerobic fermentation. After sewage enters the septic tank, solid matter settles to form a sludge layer, while grease and other substances float to the top, forming a scum layer. The middle layer is a relatively clear liquid. After a period of anaerobic decomposition, the upper liquid (supernatant) directly seeps into the soil or is discharged into nearby water bodies. Because solid sewage accumulates rapidly, especially during peak seasons with high loads, frequent cleaning is necessary, resulting in high costs and environmental pollution. Furthermore, the sludge and scum generated during the treatment process are usually transported off-site for landfill or disposal, failing to be effectively converted into resources. Summary of the Invention

[0004] One of the objectives of this invention is to provide a manure treatment mechanism. The filter cartridge assembly includes an automatically tilting mechanism composed of a main fixed ring and opposing fixed rings. Inside the main and opposing fixed rings is an automatically rotating filter cartridge. A lead screw drives the filter cartridge to tilt along with the main and opposing fixed rings. Combined with a scraper assembly, this mechanism enables both a rotating and separating working state for the filter cartridge and, after separation, when the filter cartridge rotates to the tilting position with the main and opposing fixed rings, the inner scraper synchronously moves to scrape the inner wall of the filter cartridge. This allows for automatic solid-liquid separation of manure and automatic dumping of the separated solid manure.

[0005] The objective of this invention is achieved through the following technical solution: a manure treatment mechanism, comprising a base frame assembly, a filter cartridge assembly, and a follower scraper assembly. The filter cartridge assembly includes a main retaining ring, a connecting slide bar, a filter cartridge, and an opposing retaining ring. The follower scraper assembly includes a worm gear, a horizontal retaining bar, and an inner scraper.

[0006] The main fixed ring and the opposing fixed ring are concentrically fixed, and the bottom end of the opposing fixed ring is screwed to one side of the inner frame of the base frame assembly. A vertical support is fixed on the other side of the inner frame of the base frame assembly. A screw is screwed to the lower end of one side of the support. One end of the connecting slide rod is connected to the screw, and the other end is slidably connected to the bottom end of the main fixed ring. The filter cartridge is screwed between the main fixed ring and the opposing fixed ring and can rotate automatically.

[0007] The horizontal fixing rod is fixed to the top of the upright and extends into the inner cavity of the filter cartridge. A worm gear is vertically screwed to the upper end of one side of the upright. The worm wheel is screwed to the upper end of the other side of the upright and meshes with the worm gear. An inner scraper is slidably connected to the lower side of the other end of the horizontal fixing rod. A linkage transmission mechanism is connected between the eccentric end of the worm wheel and the top end of the inner scraper.

[0008] The process of using the technical solution of this invention is as follows:

[0009] External fecal waste to be treated is added into the inner cavity of the filter cartridge from the side of the filter cartridge closest to the main solid ring, and the filter cartridge itself tilts towards the side of the main solid ring when the filter cartridge performs solid-liquid separation of the fecal waste.

[0010] As the filter cartridge rotates automatically with the main solid ring and the opposing solid ring as reference, the filter holes opened in the side wall of the filter cartridge can form a solid-liquid separation of the fecal waste, so that the liquid fecal waste is discharged to the outside of the filter cartridge, while the solid fecal waste is retained in the inner cavity of the filter cartridge.

[0011] Furthermore, when the filter cartridge is tilted to one side of the main solid ring for solid-liquid separation, the inner scraper inside the filter cartridge is in an upward-raised state.

[0012] After the filter cartridge separates the solid and liquid waste, the solid waste remaining on the inner wall of the filter cartridge needs to be discharged outward. At this time, by activating the rotary drive mechanism connected to the lead screw, the lead screw can be rotated, so that the lead screw and one end of the connecting slide rod are engaged, causing the connecting slide rod to move upward. The other end of the connecting slide rod is engaged with the bottom end of the main fixed ring, which can push the component formed by the main fixed ring and the opposite fixed ring to tilt around the bottom end of the opposite fixed ring and the inner frame of the base frame assembly as the center, forming the state of the filter cartridge tilting the material.

[0013] Furthermore, when the lead screw rotates and drives the connecting slide rod to move upward, it can also drive the worm to rotate, so that the worm and worm wheel form a transmission. Utilizing the linkage transmission mechanism connecting the eccentric end of the worm wheel and the top of the inner scraper, the inner scraper can be driven to move downward. After the filter cylinder is tilted to the position of pouring material, the bottom end of the inner scraper is in a critical state of contact with the inner wall of the filter cylinder. At this time, as the filter cylinder rotates, it can drive the inner scraper to scrape the inner wall of the filter cylinder. Combined with the tilted state of the filter cylinder itself, the solid fecal matter remaining on the inner wall of the filter cylinder can be discharged outward, forming a solid-liquid separation of fecal matter.

[0014] Another objective of this invention is to provide an ecological regulation device, which further includes a fermentation tank and an oil-liquid separation component. The oil-liquid separation component includes an oil-liquid separation tank, a one-way valve, and an oil drain pipe. The fermentation tank is located at the bottom of the solid manure discharge port of the filter cartridge. The fermentation tank is used to collect solid manure and add fermentation agent to ferment it and convert it into solid organic fertilizer.

[0015] Different separators can be connected to the liquid waste separated by the filter cartridge. Each set of oil-liquid separators has an inlet pipe connected to the middle of the side wall, and the separators on the same side are connected to the inlet pipe.

[0016] The inner cavity of the oil separator is fixed with a coalescing core, which allows oil to be separated as liquid sewage flows through the coalescing core. Due to their different densities, the liquid in the sewage will be separated to the bottom of the coalescing core, while the oil will be separated to the top of the coalescing core.

[0017] The bottom wall of the oil-liquid separator is connected to a drain pipe, the oil drain pipe is connected to the upper end of the side wall of the oil-liquid separator, the top wall of the drain pipe is connected to an exhaust pipe, one side of the exhaust pipe is connected to an air blowing pipe, and a one-way valve is installed in the liquid pipe.

[0018] Valves are installed in the drain pipe, oil drain pipe, exhaust pipe and air blowing pipe. During the process of liquid sewage flowing into the inner cavity of the oil-liquid separator, all valves except those in the exhaust pipe are closed, while the valve in the exhaust pipe is open to allow the liquid flowing into the inner cavity of the oil-liquid separator to be vented.

[0019] After the liquid fecal matter in the oil-liquid separator tank accumulates to a certain extent and oil-liquid separation is achieved, the valve in the exhaust pipe is closed, and the valves in the air blowing pipe, oil drain pipe and liquid drain pipe are opened. Air is blown into the inner cavity of the oil-liquid separator tank through the air blowing pipe. Under pneumatic pressure, the oil in the liquid fecal matter can be discharged outward from the oil drain pipe, and the liquid can be discharged downward from the liquid drain pipe.

[0020] Each set of oil separators is equipped with a trickling filter at the bottom outlet, and a storage tank is located at the bottom outlet of the trickling filter.

[0021] The bottom of the trickling filter is connected to a pipeline with a valve. The interior of the trickling filter is also equipped with a biofilm and an oxygen aeration mechanism. Microorganisms can convert organic matter into organic fertilizer under the action of oxygen. After the liquid organic fertilizer is formed in the trickling filter, the valve in the pipeline at the bottom of the trickling filter is opened to collect it in the storage tank.

[0022] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0023] (1) This invention not only has a rotatable filter cylinder based on the main solid ring and the opposing solid ring, but also sets the component formed by the main solid ring and the opposing solid ring to a screw connection state based on the base frame assembly. That is, the screw is driven by an automatically rotating screw to form a transmission with one end of the connecting slide rod, so that the other end of the connecting slide rod slides with the bottom end of the main solid ring, forming a rotation movement of the component formed by the main solid ring and the opposing solid ring around the screw connection position between the bottom end of the opposing solid ring and the base frame assembly. This can form different tilt states of the filter cylinder, which can tilt the filter cylinder to one side of the main solid ring to achieve the purpose of processing and separating solid and liquid fecal waste, and can also tilt the filter cylinder to one side of the opposing solid ring to achieve the purpose of dumping the solid fecal waste after separation.

[0024] (2) Furthermore, the present invention also provides a follow-up scraper assembly inside the filter cartridge that does not interfere with the rotation and separation action of the filter cartridge. This allows the screw to rotate and the connecting slide rod to drive the component formed by the main fixed ring and the opposite fixed ring to tilt and rotate, while the worm and worm wheel can also be engaged. The connecting rod formed by the eccentric end of the worm wheel and the top of the inner scraper can be used to drive the inner scraper to move. This allows the inner scraper to be raised to a position that does not interfere with the separation when the component formed by the main fixed ring and the opposite fixed ring tilts and rotates, driving the filter cartridge into the separation state. When the component formed by the main fixed ring and the opposite fixed ring tilts and rotates, driving the filter cartridge into the material pouring state, the inner scraper will move down to a position to scrape the inner wall of the filter cartridge. Thus, the inner scraper will not interfere with the normal rotation and separation operation of the filter cartridge, and can also clean and scrape the inner wall of the filter cartridge when the filter cartridge is pouring material. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the base frame assembly of the present invention;

[0028] Figure 3 This is a schematic diagram of the slag shell portion of the present invention;

[0029] Figure 4 This is a first-view structural schematic diagram of the filter screen assembly and the unloading auger component of the present invention;

[0030] Figure 5This is a second-view structural schematic diagram of the filter screen assembly and the unloading auger component of the present invention;

[0031] Figure 6 This is a front view of the filter screen assembly and the unloading auger component of the present invention;

[0032] Figure 7 This is a schematic diagram of the transmission structure of the support rollers in each group of the present invention;

[0033] Figure 8 This is a schematic diagram showing the positional relationship between the filter cartridge assembly and the base frame assembly of the present invention;

[0034] Figure 9 This is a schematic diagram of the transmission part of the filter cartridge assembly of the present invention;

[0035] Figure 10 This is a schematic diagram of the transmission structure of the follower scraper assembly and the filter cartridge assembly of the present invention;

[0036] Figure 11 This is a schematic diagram of the transmission structure of the inner scraper part of the present invention;

[0037] Figure 12 This is a schematic diagram of the transmission structure of the filter cartridge and the internal cleaning assembly from a first-view perspective.

[0038] Figure 13 This is a schematic diagram of the transmission structure of the filter cartridge and the internal cleaning assembly from a second perspective of the present invention;

[0039] Figure 14 This is a schematic diagram of the structure of the second collection tank portion of the present invention;

[0040] Figure 15 This is a schematic diagram of the external cleaning component of the present invention;

[0041] Figure 16 This is a schematic diagram of the fermentation tank and oil-liquid separation component of the present invention;

[0042] Figure 17 This is a schematic diagram of the oil-liquid separator section of the present invention.

[0043] Figure label:

[0044] 1. Base frame assembly; 2. Filter screen assembly; 3. Unloading auger assembly; 4. Filter cartridge assembly; 5. Follow-up scraper assembly; 6. Internal cleaning assembly; 7. External cleaning assembly; 8. Fermentation tank; 9. Oil-liquid separation assembly; 101. Main frame; 102. Material shell; 103. Material collection hood; 104. Slag discharge port; 105. Feed guide chute; 201. Filter screen belt; 202. Inner roller seat; 203. Inner support roller; 204. Side guide chute; 205. First collection chute; 206. First guide pipe; 207. Rotating sprocket; 208. Chain; 301. Auger 302. Screwdriver; 303. Unloading motor; 401. Main fixed ring; 402. Second collecting trough; 403. Second guide tube; 404. Horizontal fixed frame; 405. Fixed screw seat; 406. Moving screw seat; 407. Vertical frame; 408. Gearbox assembly; 409. Lead screw; 410. Lead screw bottom screw seat; 411. Lead screw slider; 412. Connecting slide rod; 413. Slide column; 414. Inner support roller; 415. Filter cartridge; 416. Motor frame; 417. Drum motor; 418. Drive gear; 419. Rotating large gear; 420. Opposing... 421. Fixed ring; 501. Fixed plate; 502. Top rotating seat; 503. Worm gear; 504. Worm gear; 505. Horizontal fixed rod; 506. Cam center shaft; 507. Cam; 508. Drive connecting rod eccentric shaft; 509. Worm gear eccentric shaft; 510. Drive connecting rod; 511. Clutch slide groove; 512. Inner scraper; 513. Driven connecting rod eccentric shaft; 514. Driven connecting rod; 515. Push shaft; 516. Clutch slider; 517. Telescopic guard; 601. Side fixed frame; 602. Rotating pulley; 603. Converter pulley; 604. 605. Conversion belt; 606. Inner connecting pulley; 607. Inner cleaning brush roller; 608. Inner cleaning pulley; 609. Inner cleaning belt; 700. Inner cleaning high-pressure nozzle; 701. Outer cleaning rotating seat; 702. Outer cleaning brush roller; 703. Outer cleaning frame; 704. Outer cleaning high-pressure nozzle; 901. Separating pipe; 902. Oil-liquid separator; 903. Inlet pipe; 904. Check valve; 905. Trickling filter; 906. Storage tank; 907. Coalescing core; 908. Drain pipe; 909. Air blowing pipe; 910. Oil drain pipe; 911. Exhaust pipe. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0046] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] like Figures 1-17 As shown, a manure treatment mechanism and ecological control device are disclosed. The filter cartridge assembly 4 serves as the main mechanism for solid-liquid separation of manure. The main solid ring 401 and the opposing solid ring 420 are concentrically fixed together, and the bottom end of the opposing solid ring 420 is screwed to one side of the inner frame of the main body of the base frame assembly 1. A vertical support 407 is fixed on the other side of the inner frame of the main body of the base frame assembly 1. A screw 409 is screwed to the lower end of one side of the support 407. One end of the connecting slide rod 412 is connected to the screw 409, and the other end is slidably connected to the bottom end of the main solid ring 401. The filter cartridge 415 is screwed between the main solid ring 401 and the opposing solid ring 420 and can rotate automatically.

[0048] Furthermore, the side of the filter cartridge 415 closest to the opposing solid ring 420 is the discharge end, and the side closest to the main solid ring 401 is the inlet end, which can form the basis for the feeding and discharging of materials into the inner cavity of the filter cartridge 415.

[0049] A horizontal fixing rod 505 is fixed to the top of the upright frame 407 and extends into the inner cavity of the filter cartridge 415. A worm gear 502 is vertically screwed to the upper end of one side of the upright frame 407. A worm wheel 504 is screwed to the upper end of the other side of the upright frame 407 and meshes with the worm gear 502. An inner scraper 512 is slidably connected to the lower side of the other end of the horizontal fixing rod 505. The transverse length of the inner scraper 512 is sufficient to cover the inner wall of the filter cartridge 415. A linkage transmission mechanism is connected between the eccentric end of the worm wheel 504 and the top end of the inner scraper 512. When the lead screw 409 rotates and forms a transmission with the connecting slide rod 412, the inner scraper 512 is driven to move up and down by the transmission formed by the worm gear 502 and the worm wheel 504.

[0050] The working principle is as follows:

[0051] Filter cartridge 415 is used to achieve solid-liquid separation of fecal waste;

[0052] External fecal waste to be treated is added into the inner cavity of the filter cartridge 415 from the side of the filter cartridge 415 near the main solid ring 401, and when the filter cartridge 415 performs solid-liquid separation of the fecal waste, the filter cartridge 415 itself tilts towards the side of the main solid ring 401.

[0053] As the filter cartridge 415 rotates automatically with reference to the main solid ring 401 and the opposing solid ring 420, the filter holes opened in the side wall of the filter cartridge 415 can form a solid-liquid separation operation for the fecal waste, so that the liquid fecal waste is discharged to the outside of the filter cartridge 415, while the solid fecal waste is retained in the inner cavity of the filter cartridge 415. At this time, the tilt angle of the filter cartridge 415 towards the main solid ring 401 will not cause the fecal waste being treated to flow out from the side of the filter cartridge 415 closer to the opposing solid ring 420.

[0054] Furthermore, when the filter cartridge 415 is tilted to one side of the main solid ring 401 for solid-liquid separation, the inner scraper 512 inside the filter cartridge 415 is in an upward-raised state and will not come into contact with the separated fecal matter.

[0055] After the filter cartridge 415 performs solid-liquid separation of the feces, it is necessary to discharge the solid feces remaining on the inner wall of the filter cartridge 415. At this time, by activating the rotary drive mechanism connected to the lead screw 409, the lead screw 409 can be rotated, so that the lead screw 409 and one end of the connecting slide rod 412 are engaged, causing the connecting slide rod 412 to move upward. The other end of the connecting slide rod 412 is engaged with the bottom end of the main fixed ring 401, which can push the component formed by the main fixed ring 401 and the opposing fixed ring 420 to tilt around the bottom end of the opposing fixed ring 420 and the inner frame of the base frame assembly 1 as the center, forming the state of the filter cartridge 415 pouring material.

[0056] Furthermore, when the lead screw 409 rotates and drives the connecting slide rod 412 to move upward, it can also drive the worm 502 to rotate, so that the worm 502 and the worm wheel 504 form a transmission. Utilizing the linkage transmission mechanism connecting the eccentric end of the worm wheel 504 and the top of the inner scraper 512, the inner scraper 512 can be driven to move downward. After the filter cylinder 415 is tilted to form the state of pouring material, the bottom end of the inner scraper 512 is in a critical state of contact with the inner wall of the filter cylinder 415. At this time, as the filter cylinder 415 rotates, the inner scraper 512 can be driven to scrape the inner wall of the filter cylinder 415. Combined with the tilted state formed by the filter cylinder 415 itself, the solid fecal matter remaining on the inner wall of the filter cylinder 415 can be discharged outward, forming a solid-liquid separation of fecal matter, which facilitates the subsequent separate treatment of solid and liquid fecal matter.

[0057] Furthermore, a through hole is provided in the middle of the side of the filter cartridge 415 near the main retaining ring 401, so that the arrangement of the horizontal retaining rod 505 and related transmission mechanism will not interfere with the rotation of the filter cartridge 415 as the component formed by the main retaining ring 401 and the opposing retaining ring 420 are fixed together.

[0058] The specific structures of the base frame assembly 1, the filter screen assembly 2 installed in the base frame assembly 1, and the unloading auger assembly 3 are as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the main frame 101 is a frame structure. The slag shell 102 is fixed to the upper inner end of the main frame 101. The slag collection cover 103 is fixed to the bottom end of the slag shell 102 and together with the slag shell 102 forms the same cavity. The slag discharge port 104 is connected to one side of the bottom end of the slag collection cover 103.

[0059] The top of the slag shell 102 is symmetrically connected and fixed with a feed guide 105;

[0060] The filter screen assembly 2 can filter the fecal matter entering the filter cartridge 415 in advance, remove large particles, improve the filtration efficiency and service life of the filter cartridge 415. The filter screen belt 201 is sleeved on the outside of the filter cartridge 415 and is located in the inner cavity of the material shell 102. The main frame 101 has inner roller seats 202 arranged and fixed at both ends of the main body based on the rolling path of the filter screen belt 201. Inner support rollers 203 are screwed between the paired inner roller seats 202. The filter screen belt 201 is sleeved on the support contour formed by the array of inner support rollers 203.

[0061] The side wall of the slag shell 102 has a through hole for eliminating the connection with the inner support roller 203;

[0062] The top of the main frame 101 is fixed with a pair of side guide grooves 204, and the bottom end of the side guide grooves 204 is attached to the outside of the top of the filter screen belt 201, which is used to collect the fecal waste added to the top of the filter screen belt 201.

[0063] The first collection tank 205 is located at the inner top of the filter slag grid belt 201 and is fixedly connected to the upper end of the inner wall of the slag shell 102. It is used to collect the fecal waste after it has been initially filtered by the grid holes of the filter slag grid belt 201. A pair of first guide tubes 206 are connected to one side of the bottom end of the first collection tank 205. The outlet of the first guide tube 206 is bent downward and extends into the inner cavity of the filter cartridge 415. The arrangement of the first guide tubes 206 will not affect the separation and dumping of fecal waste by the filter cartridge assembly 4 and the follow-up scraper assembly 5.

[0064] The fecal waste to be treated is poured downward from the upper end of the filter screen belt 201. As the filter screen belt 201 rolls automatically, all the screen holes in the main body of the filter screen belt 201 can be fully utilized to perform preliminary filtration of the fecal waste. Under its own gravity, the fecal waste that has been preliminarily filtered out large particles falls downward into the first collection tank 205. After being guided by the first conduit 206, it enters the inner cavity of the filter cartridge 415.

[0065] Furthermore, the top surface of the filter screen belt 201 has a sufficient area to form a preliminary filtration of the fecal matter falling onto the top surface of the filter screen belt 201.

[0066] Each set of inner support rollers 203 has a rotating sprocket 207 fixed to the outer shaft end, and a chain 208 is sleeved between the sets of rotating sprockets 207.

[0067] The unloading auger component 3 is connected to one of the inner support rollers 203. The two ends of the side wall of the slag collection cover 103 are fixedly installed with auger seats 301. The two shaft ends of the auger 302 are respectively screwed to the auger seats 301 at different positions. The unloading motor 303 is fixedly installed at the lower end of one side frame of the main frame 101. The shaft end of one side of the auger 302 is fixedly connected to the rotating shaft of the unloading motor 303, which can drive the auger 302 to form an automatic rotation action.

[0068] And such as Figure 3 As shown, one end of the slag collection hood 103 protrudes from the slag shell 102. The purpose is to facilitate the dumping of the solid waste inside the filter cylinder 415 into the slag collection hood 103 after the filter cylinder 415 is in position to dump the material along with the main solid ring 401 and the opposing solid ring 420.

[0069] One of the inner support rollers 203 is also equipped with a sprocket and chain mechanism between the shaft of the unloading motor 303, which can make the auger 302 rotate and the filter screen belt 201 roll synchronously.

[0070] As the filter screen belt 201 rolls, large particles of fecal matter that are blocked by the screen holes of the filter screen belt 201 and cannot enter the first collection tank 205 will fall into the material collection hood 103 under their own gravity through the feed guide 105, and be transported to the discharge port 104 by the automatically rotating auger 302, and discharged downward through the discharge port 104.

[0071] The purpose of setting the feed guide trough 105 is to prevent large particles of fecal matter from accumulating between the turning point at the top of the filter slag grid belt 201 and the inner wall of the slag shell 102.

[0072] The specific structures of the filter cartridge assembly 4 and the follower scraper assembly 5 are as follows: Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the filter cartridge assembly 4 is located inside the slag shell 102. The outer wall of the second collection tank 402 is fixed to the inner bottom end of the slag shell 102. The second conduit 403 is connected in pairs to one side of the second collection tank 402 and extends downward through the side wall of the slag shell 102.

[0073] When the filter cartridge 415 is tilted to one side of the main solid ring 401 as the component formed by the main solid ring 401 and the opposing solid ring 420 is fixed together, and the top opening of the second collection tank 402 forms a critical state of contact with the outer wall of the filter cartridge 415, the liquid sewage discharged through the filter holes of the filter cartridge 415 can be collected and treated by the second collection tank 402, and can be discharged downward through the second conduit 403.

[0074] Furthermore, the arrangement of the second collection tank 402 will not interfere with the tilting action of the filter cartridge 415 towards the opposite solid ring 420 as the component formed by the main solid ring 401 and the opposite solid ring 420 are fixed together.

[0075] The transverse frame 404 is transversely fixed to the inner upper end of the main frame 101. A movable rotating seat 406 is fixed to the middle of the bottom end of the opposing fixed ring 420. A fixed rotating seat 405 is fixed to one side of the transverse frame 404. The movable rotating seat 406 is screwed to the fixed rotating seat 405.

[0076] A fixed plate 421 is symmetrically fixed between the main fixed ring 401 and the opposing fixed ring 420. The fixed plate 421 will not interfere with the screw connection between the filter cartridge 415 and the main fixed ring 401 and the opposing fixed ring 420, nor will it interfere with the operation of the filter cartridge 415 to pour materials.

[0077] Furthermore, the side wall of the slag shell 102 is provided with a through hole for assembling with the filter cartridge assembly 4 and the follower scraper assembly 5;

[0078] The upright frame 407 is vertically fixed to the other side of the horizontal fixed frame 404. The reducer body of the geared motor set 408 is fixed to the side of the upright frame 407. The shaft ends of the lead screw 409 and the worm gear 502 are connected to the output shaft of the geared motor set 408. The motor body of the geared motor set 408 is fixed to the reducer, and the motor main shaft of the geared motor set 408 is connected to the input shaft of the reducer.

[0079] On the other side of the transverse frame 404, a screw bottom seat 410 is fixedly installed at the top. The bottom end of the screw 409 is screwed to the screw bottom seat 410. A screw slider 411 is fixedly installed at one end of the connecting slide rod 412. The screw slider 411 is connected to the screw 409. A sliding column 413 is fixedly connected to the middle of the bottom end of the main ring 401. The sliding column 413 is slidably connected to the slot at the other end of the connecting slide rod 412.

[0080] The bottom of the main body of the support frame 407 is also provided with a sliding hole that slides with the connecting slide rod 412, so that the connecting slide rod 412 can move up and down reliably as the lead screw slider 411 and lead screw 409 cooperate and transmit.

[0081] Both the main ring 401 and the opposing ring 420 have internal support rollers 414 arranged inside their bodies. The filter cartridge 415 is connected to the internal support rollers 414 by guide grooves at both ends, so that the internal support rollers 414 can support the filter cartridge 415 to rotate, and the filter cartridge 415 will not detach from the internal support rollers 414 when rotating.

[0082] A motor frame 416 is fixedly connected to one side of the top end of the main ring 401. A drum motor 417 is fixedly installed on one side of the motor frame 416. A drive gear 418 is inserted in the rotating shaft of the drum motor 417. A rotating large gear 419 is fixed on one side of the outer end of the filter cartridge 415, and the drive gear 418 meshes with the rotating large gear 419.

[0083] After the drum motor 417 is started and drives the drive gear 418 to rotate, the drive gear 418 can cooperate with the rotating large gear 419 to drive the filter cartridge 415 to form a slow rotational motion with the main fixed ring 401 and the opposing fixed ring 420 as the reference.

[0084] A top screw seat 501 is fixedly installed on one side of the top of the support frame 407. The top of the shaft of the worm 502 is screwed to the top screw seat 501, which can improve the rotation stability of the worm 502.

[0085] The worm gear seat 503 is fixedly connected to the other side of the top of the upright 407. The shaft of the worm gear 504 is screwed to the worm gear seat 503. The main body of the horizontal rod 505 is fixedly connected to the cam center shaft 506. The shaft of the cam 507 is screwed to the cam center shaft 506.

[0086] The eccentric end of the worm gear 504 is fixedly connected to the worm gear eccentric shaft 509, the eccentric end of the cam 507 is fixedly connected to the drive connecting rod eccentric shaft 508, one end of the drive connecting rod 510 is screwed to the worm gear eccentric shaft 509, and the other end is screwed to the drive connecting rod eccentric shaft 508.

[0087] The other end of the horizontal fixed rod 505 is fixed with a clutch slide groove 511. The eccentric end of the cam 507 is also fixed with a passive connecting rod eccentric shaft 513. The top of the inner scraper 512 is fixed with a push shaft 515. The other end of the push shaft 515 is fixed with a clutch slider 516. The clutch slider 516 slides in the clutch slide groove 511. One end of the passive connecting rod 514 is screwed to the passive connecting rod eccentric shaft 513, and the other end is screwed to the push shaft 515.

[0088] This allows the worm 502 and worm wheel 504 to form a transmission connection, and the drive connecting rod 510, which is screwed between the worm wheel eccentric shaft 509 and the drive connecting rod eccentric shaft 508, to drive the cam 507 to rotate within a certain range. The rotation of the cam 507 will then drive the clutch slider 516 to slide in the clutch groove 511 through the passive connecting rod eccentric shaft 513 and the push shaft 515. This will cause the filter cartridge 415 to tilt along with the components of the main fixed ring 401 and the opposing fixed ring 420 as the screw 409 rotates, and the inner scraper 512 to simultaneously separate and adhere to the inner wall of the filter cartridge 415.

[0089] The purpose of setting two sets of linkage mechanisms at the top of the inner scraper 512 and the eccentric end of the worm wheel 504 is that, through the transfer action formed by the cam 507, a double linkage structure can be formed. Compared with the single linkage structure, the excessively long linkage can be divided into two groups, thereby improving the stability of its transmission.

[0090] Furthermore, a telescopic cover 517 is connected in the main body of the crossbar 505, which covers the clutch slide groove 511. This is used to protect the sliding engagement between the clutch slider 516 and the clutch slide groove 511, preventing fecal particles from having an adverse effect on it. Moreover, due to its telescopic structure, the telescopic cover 517 will not interfere with the engagement of the clutch slider 516 and its related mechanisms.

[0091] Similarly, the transmission components located inside the filter cartridge 415 are all made of rust-proof material to prevent corrosion from fecal matter.

[0092] The fermentation tank 8 and oil-liquid separation component 9 are used for ecological regulation of solid manure collected by the slag collection hood 103 and liquid manure collected by the second collection tank 402 to meet their reuse needs. Figure 16 and Figure 17 As shown, the fermentation tank 8 is placed at the bottom of the inner frame of the main frame 101, and the bottom outlet of the slag discharge port 104 is connected to the top inlet of the fermentation tank 8. The fermentation tank 8 is used to collect the solid manure discharged by the slag collection hood 103 and the slag discharge port 104, and to add fermentation agent to ferment it and convert it into solid organic fertilizer.

[0093] Each set of second conduits 403 has an outlet end connected to a set of liquid separators 901, and each set of oil separators 902 has an inlet pipe 903 connected to the middle of the side wall. The liquid separators 901 on the same side are connected to the inlet pipe 903.

[0094] This allows the liquid fecal matter collected by the filter cartridge 415 and collected by the second collection tank 402 to flow into each group of oil-liquid separators 902 through the second conduit 403.

[0095] A coalescing core 907 is fixed in the middle of the inner cavity of the oil-liquid separator 902, which allows oil and sewage to be separated as liquid sewage flows through the coalescing core 907. Due to their different densities, the liquid in the sewage will be separated to the bottom of the coalescing core 907, and the oil will be separated to the top of the coalescing core 907. The principle of oil-liquid separation using the coalescing core 907 is existing technology and will not be described in detail here.

[0096] The bottom wall of the oil separator 902 is connected to a drain pipe 908, the oil drain pipe 910 is connected to the upper end of the side wall of the oil separator 902, the top wall of the drain pipe 908 is connected to an exhaust pipe 911, and one side of the exhaust pipe 911 is connected to an air blowing pipe 909.

[0097] Furthermore, a backflow prevention check valve 904 is installed in the liquid inlet pipe 903;

[0098] Valves are installed in the drain pipe 908, oil drain pipe 910, exhaust pipe 911 and air blowing pipe 909. During the process of liquid sewage flowing into the inner cavity of the oil-liquid separator 902, all valves except those in the exhaust pipe 911 are in the closed state, and the valve in the exhaust pipe 911 is in the open state to realize the exhaust of liquid flowing into the inner cavity of the oil-liquid separator 902.

[0099] After the liquid fecal matter in the oil-liquid separator 902 accumulates to a certain extent and oil-liquid separation is achieved, the valve in the exhaust pipe 911 is closed, and the valves in the air blowing pipe 909, oil drain pipe 910 and liquid drain pipe 908 are opened. Air is blown into the inner cavity of the oil-liquid separator 902 through the air blowing pipe 909. Under pneumatic pressure, the oil in the liquid fecal matter can be discharged outward from the oil drain pipe 910, and the liquid can be discharged downward from the liquid drain pipe 908, in order to remove the oil in the liquid fecal matter.

[0100] Each set of oil separators 902 is equipped with a trickling filter 905 at the bottom outlet, and a storage tank 906 is provided at the bottom outlet of the trickling filter 905.

[0101] Similarly, the bottom of the trickling filter 905 is connected to a pipeline with a valve. The interior of the trickling filter 905 is also equipped with a biofilm and an oxygen aeration mechanism. Microorganisms can convert organic matter into organic fertilizer under the action of oxygen. After the liquid organic fertilizer is formed in the trickling filter 905, the valve in the pipeline at the bottom of the trickling filter 905 is opened to collect it in the storage tank 906.

[0102] Preferred, such as Figure 12 and Figure 13As shown, the inner wall of the filter cartridge 415 is also provided with an inner cleaning assembly 6 that is connected to the rotational movement of the filter cartridge 415, which can perform cleaning work on the filter holes on the side wall of the filter cartridge 415. One end of the side fixing frame 601 is fixedly connected to the outer circular surface of the main fixing ring 401. A rotating pulley 602 is also inserted in the rotating shaft of the drum motor 417. The other end of the side fixing frame 601 is screwed with a conversion pulley 603. A conversion belt 604 is sleeved between the conversion pulley 603 and the rotating pulley 602. When the drum motor 417 drives the drive gear 418 and the rotating large gear 419 to form a transmission, the rotating pulley 602 is driven to rotate synchronously. The rotating pulley 602 can drive the rotation of the conversion pulley 603 through the conversion belt 604.

[0103] An inner connecting pulley 605 is coaxially fixed on one side of the conversion pulley 603. An inner cleaning brush roller 606 is laterally screwed into one of the fixed plates 421. The bristles of the inner cleaning brush roller 606 are in frictional contact with the inner wall of the filter cartridge 415. An inner cleaning pulley 607 is inserted into the shaft end on one side of the inner cleaning brush roller 606. An inner cleaning belt 608 is sleeved between the inner connecting pulley 605 and the inner cleaning pulley 607.

[0104] The inner connecting pulley 605 and the conversion pulley 603 can rotate coaxially, so that the inner connecting pulley 605 drives the inner cleaning pulley 607 to rotate through the inner cleaning belt 608, which in turn drives the inner cleaning brush roller 606 to clean the inner wall of the filter cartridge 415.

[0105] Furthermore, since the installation of the filter screen assembly 2 and the internal cleaning assembly 6 avoids the rotation path area of ​​the filter cartridge 415, the setting of the internal cleaning assembly 6 will not interfere with the rotation of the filter cartridge 415.

[0106] An internal cleaning high-pressure nozzle 609 is also arranged and connected on one side of the internal cleaning brush roller 606. The outlet of the internal cleaning high-pressure nozzle 609 is directly opposite the position where the brush bristles of the internal cleaning brush roller 606 contact the inner wall of the filter cartridge 415. High-pressure gas can be supplied to it. In conjunction with the friction action of the brush bristles of the filter cartridge 415 against the filter holes on the inner wall of the filter cartridge 415, the fecal matter blocked in the filter holes can be removed.

[0107] Furthermore, since the size of the grid holes of the filter slag grid belt 201 is much larger than the size of the screen holes of the filter cylinder 415, the sludge and feces cleaned by the inner cleaning brush roller 606 fall downward into the material collection hood 103 through the grid holes of the filter slag grid belt 201 under its own gravity.

[0108] Preferred, such as Figure 15As shown, the main frame 101 is also equipped with an external cleaning assembly 7 that is connected to the inner support roller 203. External cleaning seats 701 are fixed on both sides of the main frame 101. The two ends of the external cleaning brush roller 702 are respectively screwed into different external cleaning seats 701. The shaft end of one side of the external cleaning seat 701 is connected to the outer shaft end of the inner support roller 203 through a sprocket and a chain drive mechanism, which can form synchronous rotation of the external cleaning brush roller 702 and the inner support roller 203.

[0109] The main frame 101 is also horizontally fixed to an external cleaning frame 703. An external cleaning high-pressure nozzle 704 is arranged and installed in the external cleaning frame 703. The outlet of the external cleaning high-pressure nozzle 704 is at the position where the bristles of the external cleaning brush roller 702 contact the outer wall of the filter screen belt 201.

[0110] Furthermore, both the external cleaning high-pressure nozzle 704 and the internal cleaning high-pressure nozzle 609 are connected to the same external high-pressure air source, which is consistent with the cleaning principle of the internal cleaning brush roller 606 on the filter cartridge 415. The external cleaning high-pressure nozzle 704, in conjunction with the external cleaning brush roller 702, can also clean the outer wall of the filter sludge grid belt 201. The cleaned-out fecal matter can also fall into the material sludge collection hood 103 under its own gravity.

[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sewage treatment mechanism, comprising a base frame assembly (1), characterized in that: It also includes a filter cartridge assembly (4) and a follow-up scraper assembly (5); The filter cartridge assembly (4) includes a main retaining ring (401), a connecting slide bar (412), a filter cartridge (415), and a counter-retaining ring (420). The follower scraper assembly (5) includes a worm gear (504), a horizontal retaining bar (505), and an inner scraper (512). The main retaining ring (401) and the opposing retaining ring (420) are concentrically fixed together, and the bottom end of the opposing retaining ring (420) is screwed to one side of the inner frame of the main body of the base frame assembly (1). A stand (407) is fixed to the other side of the inner frame of the main body of the base frame assembly (1). A screw (409) is screwed to the lower end of one side of the stand (407). One end of the connecting slide rod (412) is connected to the screw (409), and the other end is slidably connected to the bottom end of the main retaining ring (401). The filter cartridge (415) is screwed to the main retaining ring. Between (401) and the opposing fixed ring (420), the horizontal fixed rod (505) is fixed to the top of the upright (407). A worm (502) is screwed to the upper end of one side of the upright (407), and a worm wheel (504) is screwed to the upper end of the other side of the upright (407) and meshes with the worm (502). An inner scraper (512) is slidably connected to the lower side of the other end of the horizontal fixed rod (505). A linkage transmission mechanism is connected between the eccentric end of the worm wheel (504) and the top end of the inner scraper (512). The follower scraper assembly (5) also includes a worm gear seat (503), a cam (507), a drive link (510), and a driven link (514). The worm gear seat (503) is fixed to the other side of the top of the stand (407). The shaft of the worm gear (504) is screwed to the worm gear seat (503). The central shaft of the cam (506) is fixed to the middle of the main body of the horizontal support rod (505). The shaft of the cam (507) is screwed to the central shaft of the cam (506). The eccentric end of the worm gear (504) is fixed to the worm gear eccentric shaft (509). The eccentric end of the cam (507) is fixed to the drive link eccentric shaft (508). One end of the drive link (510) is screwed to the worm gear eccentric shaft (509), and the other end is screwed to the drive link eccentric shaft (508). The moving connecting rod eccentric shaft (508) is screwed on, and the other end of the horizontal fixed rod (505) is fixed with a clutch slide groove (511). The eccentric end of the cam (507) is also fixed with a passive connecting rod eccentric shaft (513). The top of the inner scraper (512) is fixed with a push shaft (515). The other end of the push shaft (515) is fixed with a clutch slider (516). The clutch slider (516) slides in the clutch slide groove (511). One end of the passive connecting rod (514) is screwed with the passive connecting rod eccentric shaft (513), and the other end is screwed with the push shaft (515). The linkage transmission mechanism drives the inner scraper (512) to move downwards, and after the filter cylinder (415) is tilted to form a state of pouring material, the bottom end of the inner scraper (512) is in a critical state of contact with the inner wall of the filter cylinder (415). As the filter cylinder (415) rotates, the inner scraper (512) is driven to form a scraping action on the inner wall of the filter cylinder (415).

2. The sewage treatment facility according to claim 1, characterized in that: The base frame assembly (1) includes a main frame (101), a slag shell (102), a slag collection hood (103), and a slag discharge port (104). The slag shell (102) is fixed to the upper inner end of the main frame (101), the slag collection hood (103) is fixed to the bottom end of the slag shell (102), the slag discharge port (104) is connected to one side of the bottom end of the slag collection hood (103), and the top of the slag shell (102) is symmetrically connected and fixed with a feed guide groove (105).

3. The sewage treatment facility according to claim 2, characterized in that: The filter cartridge assembly (4) also includes a second collection tank (402), a second guide tube (403), a transverse frame (404), and a geared motor assembly (408). The outer wall of the second collection tank (402) is fixed to the inner bottom end of the slag shell (102). The second guide tube (403) is connected in pairs to one side of the second collection tank (402). The transverse frame (404) is fixed to the inner upper end of the main frame (101). A movable rotating seat (406) is fixed to the middle of the bottom end of the opposing fixed ring (420). A fixed rotating seat (405) is fixed to one side of the transverse frame (404). The movable rotating seat (406) is spun to the fixed rotating seat (405). A fixed plate (421) is symmetrically fixed between the main fixed ring (401) and the opposing fixed ring (420). The upright frame (407) is fixed to the transverse frame (408). On the other side of 04), the reducer body of the geared motor set (408) is fixedly connected to the side of the upright frame (407). The shaft ends of the lead screw (409) and the worm gear (502) are connected to the output shaft of the geared motor set (408). The motor main shaft of the geared motor set (408) is connected to the input shaft of the reducer. The top of the other side of the transverse frame (404) is also fixedly installed with a lead screw bottom screw seat (410). The bottom end of the lead screw (409) is screwed to the lead screw bottom screw seat (410). One end of the connecting slide rod (412) is fixedly installed with a lead screw slider (411). The lead screw slider (411) is connected to the lead screw (409). The bottom end of the main ring (401) is fixedly connected with a sliding column (413). The sliding column (413) is slidably connected to the slot at the other end of the connecting slide rod (412).

4. A sewage treatment facility according to claim 3, characterized in that: The filter cartridge assembly (4) also includes a drum motor (417). The main ring (401) and the opposing ring (420) are both equipped with internal support rollers (414) arranged inside the main body. The filter cartridge (415) is connected to the internal support rollers (414) through guide grooves at both ends. A motor frame (416) is fixed to one side of the top of the main ring (401). The main body of the drum motor (417) is fixed to one side of the motor frame (416). A drive gear (418) is inserted in the shaft. A large rotating gear (419) is fixed to one side of the outer end of the filter cartridge (415), and the drive gear (418) meshes with the large rotating gear (419).

5. A sewage treatment facility according to claim 2, 3 or 4, characterized in that: The interior of the slag shell (102) is also provided with a filter grid assembly (2), which includes a filter grid belt (201), a first collection trough (205), a first guide tube (206), and a chain (208). The filter grid belt (201) is sleeved on the outside of the filter cylinder (415). Inner roller seats (202) are arranged and fixed at both ends of the main body of the main frame (101). Inner support rollers (203) are screwed between the paired inner roller seats (202). The filter grid belt (201) is sleeved on the support contour formed by the inner support rollers (203). On the top of the main frame (101), a pair of side guide grooves (204) are fixed. The first collection groove (205) is located at the inner top of the filter slag grid belt (201) and is fixed to the upper end of the inner wall of the slag shell (102). The first guide tube (206) is connected to one side of the bottom end of the first collection groove (205), and the outlet of the first guide tube (206) is bent downward and extends into the inner cavity of the filter cylinder (415). The outer shaft end of each set of inner support rollers (203) is fixed with a rotating sprocket (207), and a chain (208) is sleeved between the rotating sprockets (207).

6. A sewage treatment facility according to claim 5, characterized in that: The inside of the slag collection hood (103) is also provided with a discharge auger component (3) that is connected to one of the inner support rollers (203). The discharge auger component (3) includes an auger (302). Both ends of the side wall of the slag collection hood (103) are fixedly installed with auger seats (301). The two shaft ends of the auger (302) are respectively screwed to the auger seats (301) at different positions. The lower end of one side frame of the main frame (101) is fixedly installed with a discharge motor (303). The shaft end of one side of the auger (302) is fixedly connected to the rotating shaft of the discharge motor (303). A sprocket and chain mechanism is also provided between one of the inner support rollers (203) and the rotating shaft of the discharge motor (303).

7. A sewage treatment facility according to claim 4, characterized in that: The inner wall of the filter cartridge (415) is also provided with an inner cleaning assembly (6) that is connected to the rotational movement of the filter cartridge (415). The inner cleaning assembly (6) includes a side fixing frame (601), an inner cleaning pulley (607), and an inner cleaning belt (608). One end of the side fixing frame (601) is fixedly connected to the outer circular surface of the main fixing ring (401). A rotating pulley (602) is also inserted into the shaft of the drum motor (417). The other end of the side fixing frame (601) is screwed with a conversion pulley (603). A conversion belt (604) is fitted between the conversion pulley (603) and the rotating pulley (602). An inner connecting pulley (605) is also coaxially fixed on one side of the conversion pulley (603). An inner cleaning brush roller (606) is screwed into a set of fixed plates (421). An inner cleaning pulley (607) is inserted into the shaft end on one side of the inner cleaning brush roller (606). An inner cleaning belt (608) is fitted between the inner connecting pulley (605) and the inner cleaning pulley (607).

8. An ecological regulation device, comprising a manure treatment mechanism as described in any one of claims 2 to 7, characterized in that: It also includes a fermentation tank (8), which is placed at the bottom of the inner frame of the main frame (101), and the bottom outlet of the slag discharge port (104) is connected to the top inlet of the fermentation tank (8).

9. An ecological regulation device according to claim 8, characterized in that: It also includes an oil-liquid separation assembly (9), which includes an oil-liquid separation tank (902), a one-way valve (904), and an oil drain pipe (910). The outlet end of each set of second conduits (403) is connected to a set of distribution pipes (901). The middle of the side wall of each set of oil-liquid separation tanks (902) is connected to an inlet pipe (903). The distribution pipes (901) on the same side are connected to the inlet pipes (903). A coalescing inner core (907) is fixed in the middle of the inner cavity of the oil-liquid separation tank (902). The bottom wall of the oil separator (902) is connected to a drain pipe (908), the oil drain pipe (910) is connected to the upper end of the side wall of the oil separator (902), the top wall of the drain pipe (908) is connected to an exhaust pipe (911), one side of the exhaust pipe (911) is connected to an air blowing pipe (909), and a one-way valve (904) is installed in the liquid inlet pipe (903). Each group of oil separators (902) is provided with a trickling filter (905) at the bottom outlet position, and a storage tank (906) is provided at the bottom outlet position of the trickling filter (905).

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