A solid-liquid separation device for domestic sewage purification and treatment process thereof

Abstract

The present invention relates to the technical field of water treatment, and discloses a solid-liquid separation device for purifying domestic sewage and a treatment process thereof. The device comprises a purification box and a drive box, wherein the drive box is fixedly connected to the outer wall of the purification box, a conical bottom plate is fixedly connected inside the purification box, a flip plate is rotatably connected inside the conical bottom plate, a discharge pipe is fixedly connected inside the flip plate, and a flip rod is fixedly connected to the outer wall of the flip plate; domestic sewage flowing downward can be squeezed by rotating two ultraviolet squeeze lamp rollers in opposite directions, and the rolling squeeze action can push the sewage through the two ultraviolet squeeze lamp rollers; as the two ultraviolet squeeze lamp rollers rotate in opposite directions, the sewage will be continuously pushed and squeezed, so that the solid particles therein are more concentratedly gathered together, and the squeezed water can flow out more smoothly from the squeezed area, further promoting the separation of solid and liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to a solid-liquid separation device for purifying domestic sewage and a treatment process thereof. Background Art

[0002] Domestic sewage refers to various sewage generated by people in their daily lives, including but not limited to washing water, kitchen water, toilet drainage, etc. These sewages usually contain a large amount of organic matter, suspended solids, nitrogen, phosphorus and other pollutants. With the growth of urban population and the improvement of living standards, the discharge of domestic sewage continues to increase. If it is not properly treated, domestic sewage will cause serious harm to the environment. For example, it contains a large amount of organic matter, such as food residues and excrement. If these organic matter are discharged directly without treatment, they will decompose in the water body and consume a large amount of oxygen, causing water hypoxia, affecting the survival and reproduction of aquatic organisms and destroying the water ecological balance. Secondly, sewage may also contain various pathogens, such as bacteria, viruses, etc., which can spread diseases and pose a serious threat to public health. Therefore, in the process of purification of domestic sewage, solids and liquids in sewage need to be separated and discharged;

[0003] However, in the process of solid-liquid separation of domestic sewage in the existing technology, due to the different sizes and irregular shapes of solid matter particles in the sewage, and the presence of some highly viscous substances such as grease, colloids, etc., they may be difficult to effectively separate from the liquid, easily clog the filter or cause incomplete separation, and some fine particles will be discharged through the gaps in the filter, thereby reducing the solid-liquid separation accuracy of the sewage. At the same time, the solid matter composition in domestic sewage is complex, and there will be some very small and irregularly shaped particles. These particles will pass through the aperture of the filter at various angles and in various ways, especially when they agglomerate or attach to other substances, it is easier to break through the aperture limitation, which will still lead to a decrease in the solid-liquid separation accuracy of domestic sewage. Therefore, it is necessary to provide a solid-liquid separation device for domestic sewage purification and a treatment process thereof to solve the above problems. Summary of the Invention

[0004] The main purpose of the present invention is to provide a solid-liquid separation device for purifying domestic sewage and a treatment process thereof, which can effectively solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a solid-liquid separation device for purifying domestic sewage, comprising a purification box and a drive box, the drive box being fixedly connected to the outer wall of the purification box, the interior of the purification box being fixedly connected to a conical bottom plate, the interior of the conical bottom plate being rotatably connected to a flip plate, the interior of the flip plate being fixedly connected to a discharge pipe, the outer wall of the flip plate being fixedly connected to a flip rod, the interior of the purification box being provided with a purification and dredging component for preliminary solid-liquid separation of sewage, the interior of the purification box being provided with a repeated filtration and removal component for re-solid-liquid separation of sewage, and the interior of the purification box being provided with an extrusion water filtration component for extrusion and disinfection of solid-liquid separation of sewage.

[0006] As a further improvement of the above scheme, the squeeze water filtration assembly includes a rotating shaft 1 which is symmetrically connected to the inside of the purification box, the outer wall of the rotating shaft 1 is fixedly connected to the ultraviolet squeezing lamp roller, the end of the rotating shaft 1 away from the purification box is penetrated and arranged in the interior of the drive box, the inner wall of the purification box is slidably connected to a telescopic plate, and the telescopic plates are respectively rotatably connected to the outer wall of the rotating shaft 1, the interior of the drive box is rotatably connected to a rotating shaft 2, the outer wall of the rotating shaft 2 is symmetrically fixedly connected to a worm 1, the spiral grooves of the two worms 1 are arranged in opposite directions, the end of the rotating shaft 1 away from the ultraviolet squeezing lamp roller is fixedly connected to a worm gear 1, the worm gear 1 and the worm 1 are respectively meshed with each other, and the outer wall of the rotating shaft 2 is fixedly connected to a worm gear 2.

[0007] As a further improvement of the above scheme, the squeeze water filtration assembly also includes a connecting ring that is rotatably connected to the outer wall of the rotating shaft one, the internal rotation of the drive box is connected to a two-way screw, the bottom of the connecting ring is fixedly connected to a mounting block, and the mounting block is threadedly connected to the outer wall of the two-way screw, the outer wall of the rotating shaft two is fixedly connected to a fixed gear, the outer wall of the two-way screw is slidably connected to a moving gear, the outer wall of the moving gear is rotatably connected to a connecting plate two, the inner wall of the drive box is fixedly connected to a micro electric pneumatic rod, the telescopic shaft of the micro electric pneumatic rod is fixedly connected to the connecting plate two, the connecting plate two is slidably connected to the outer wall of the two-way screw, the interior of the moving gear is provided with a limiting slide groove, the outer wall of the two-way screw is fixedly connected to a limiting convex strip, and the limiting convex strip is slidably connected to the interior of the limiting slide groove.

[0008] As a further improvement of the above-mentioned scheme, the squeeze water filtration assembly also includes a rotating rod symmetrically connected to the inner wall of the purification box, the outer wall of the rotating rod is fixedly connected to a conical cleaning plate, the outer wall of the rotating rod is sleeved with a torsion spring, both ends of the torsion spring are fixedly connected to the inner side of the conical cleaning plate, and the conical ends of the conical cleaning plate are in contact with the upper surface of the ultraviolet squeeze lamp roller.

[0009] As a further improvement of the above scheme, the purification and dredging component includes a water inlet pipe rotatably connected to the inside of the purification box, the bottom of the water inlet pipe is fixedly connected to a purification filter cartridge, the purification filter cartridge is rotatably connected to the inside of the purification box, the bottom of the purification filter cartridge is detachably installed with a base plate, the upper surface of the drive box is fixedly connected to a drive motor, the output shaft of the drive motor is fixedly connected to a rotating rod, the rotating rod is rotatably connected to the inside of the drive box, the outer wall of the rotating rod is fixedly connected to a second worm gear, the water inlet pipe and the rotating rod are connected by a belt drive, and the second worm gear is engaged with the second worm gear.

[0010] As a further improvement of the above scheme, the purification and unblocking component also includes four fixed tubes symmetrically fixedly connected to the inside of the purification box, the interiors of the fixed tubes are slidably connected to mobile air tubes, the end of the mobile air tube close to the purification filter cartridge is fixedly connected to an air collecting box, the side of the air collecting box away from the mobile air tube is fixedly connected to dredging air plugs arranged in a linear array, the tips of the dredging air plugs are inserted into the aperture of the purification filter cartridge, the outer walls of the mobile air tubes are fixedly connected to retaining rings, the outer walls of the mobile air tubes are sleeved with compression springs 1, the two ends of the compression springs 1 are respectively fixedly connected to the inner wall of the fixed tube and the retaining ring, the end of the mobile air tube away from the air collecting box is fixedly connected to an air intake pipe, and the end of the air intake pipe away from the mobile air tube is connected to an external air pump.

[0011] As a further improvement of the above scheme, the repeated filtration and removal component includes a fixed ring fixedly connected to the inner wall of the purification box, a filter screen is detachably installed inside the fixed ring, a fixed rod is fixedly connected to the bottom of the bottom plate, a compression spring 2 is fixedly connected to the inner wall of the fixed rod, a push plate is fixedly connected to the bottom of the push plate, a push rod is fixedly connected to the bottom end of the push rod, a scraper is fixedly connected to the bottom of the scraper symmetrically fixedly connected to an extrusion arc-shaped protrusion, and four fixed arc-shaped protrusions are symmetrically fixedly connected to the upper surface of the fixed ring.

[0012] As a further improvement of the above solution, a fixed opening is respectively opened inside the purification box and the drive box, the rotating shaft is slidably connected inside the fixed opening, and the side of the telescopic plate away from the ultraviolet extrusion lamp roller is slidably connected at the position of the fixed opening.

[0013] As a further improvement of the above solution, the limiting ridge and the limiting groove are both cross-shaped, a turbidity sensor is provided inside the purification box, and the turbidity sensor is located between the fixing ring and the ultraviolet extrusion lamp roller.

[0014] A treatment process of a solid-liquid separation device for domestic sewage purification comprises the following steps:

[0015] Step 1: After the domestic sewage enters the purification filter cartridge from the inlet of the water inlet pipe through the pipe, the drive motor is started to operate, and the water inlet pipe and the purification filter cartridge are rotated at high speed through the belt. The centrifugal force of the rotation of the purification filter cartridge performs a preliminary filtration of the domestic sewage inside. Large solid waste remains in the purification filter cartridge, and the domestic sewage is thrown out into the purification box through the aperture of the purification filter cartridge;

[0016] Step 2: When performing preliminary solid-liquid separation on domestic sewage, the gas is pumped into the gas collecting box through the air inlet pipe and the mobile air pipe by an external air pump for storage, and the gas with impact force inside the gas collecting box is blown into the interior of the purification filter cartridge through the dredging air plug toward the pore diameter of the purification filter cartridge. When the purification filter cartridge rotates, the rotational force will push the dredging air plug, the gas collecting box, and the mobile air pipe to move, and the solid waste blocked in the pore diameter of the purification filter cartridge is pushed into the purification filter cartridge by the reciprocating movement of the dredging air plug;

[0017] Step 3: The domestic sewage and small particles of solid waste thrown into the fixed ring and the filter are separated into solid and liquid by the filter, so that the solid waste remains on the filter and the sewage flows downward;

[0018] Step 4: During the rotation of the purification filter cartridge, the scraper rotates synchronously with it. The scraper can scrape off the solid waste covered on the filter screen. When the extrusion arc-shaped protrusion rotates on the fixed arc-shaped protrusion, the up and down vibration force generated by the scraper vibrates and knocks the filter screen, thereby vibrating and clearing the solid waste blocked in the filter screen aperture;

[0019] Step 5: After the turbidity sensor automatically senses the volume content of solid waste in the sewage separated from the filter, it sends a signal to the controller, which drives the distance between the two ultraviolet squeeze lamp rollers to adjust. If the turbidity sensor senses that the volume of solid waste in the sewage is small, the distance between the two ultraviolet squeeze lamp rollers is adjusted to be smaller than the volume of the solid waste. If the turbidity sensor senses that the volume of solid waste in the sewage is large, the distance between the two ultraviolet squeeze lamp rollers is adjusted to be larger accordingly, but the distance between the two ultraviolet squeeze lamp rollers is still smaller than the volume of the solid waste.

[0020] Step 6: The two ultraviolet squeeze lamp rollers rotate in opposite directions, and the squeezing force of the ultraviolet squeeze lamp rollers squeezes the falling domestic sewage. The squeezed liquid is discharged through the discharge pipe, while part of the squeezed solid waste falls on the turning plate, and a small part sticks to the ultraviolet squeeze lamp rollers;

[0021] Step 7: The tip of the conical cleaning plate is always in contact with the ultraviolet extrusion lamp roller, so the solid waste adhering to the ultraviolet extrusion lamp roller can be scraped off. After the liquid is discharged, the solid waste accumulated on the top can be poured out by turning the turning plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The two ultraviolet squeeze lamp rollers rotate in opposite directions to squeeze the domestic sewage flowing downward, and the rolling squeeze action can push the sewage through the two ultraviolet squeeze lamp rollers. As the two ultraviolet squeeze lamp rollers rotate in opposite directions, the sewage will be continuously pushed and squeezed, so that the solid particles therein are more concentrated and gathered together, and the squeezed water can flow out more smoothly from the squeezed area, further promoting the separation of solid and liquid. The mechanical squeezing method can break the relatively weak binding state between some solid particles and water, so that the tiny solid particles that are originally difficult to separate can also be separated from the water under pressure, and some small particles smaller than the aperture of the filter mesh remain, and the smaller particles of waste adhere to the outer wall of the ultraviolet squeeze lamp roller during the squeezing process, and the squeezed water is discharged through the discharge pipe. In addition, the ultraviolet squeeze lamp roller can sterilize the sewage in the process of squeezing and separating the sewage.

[0024] 2. The tips of the two conical cleaning plates are in tight contact with the surface of the ultraviolet extrusion lamp roller. The scraping force at the tips of the conical cleaning plates can scrape off a small amount of small particles of waste adhering to the outer wall of the ultraviolet extrusion lamp roller, so that the small particles of waste are separated from the ultraviolet extrusion lamp roller, and the small particles of solid waste remain above the two ultraviolet extrusion lamp rollers. This can effectively prevent small particles of waste from continuing to adhere and accumulate on the surface of the ultraviolet extrusion lamp roller, and promptly scrape off the adhering small particles of waste to avoid their accumulation and affecting the normal operation and extrusion effect of the ultraviolet extrusion lamp roller, thereby ensuring the relative cleanliness of the surface of the ultraviolet extrusion lamp roller and maintaining its good extrusion performance.

[0025] 3. After the sewage treatment is completed, the staff will invert all the solid waste remaining on the purification filter cartridge and the filter screen onto the two ultraviolet squeezing lamp rollers. The two ultraviolet squeezing lamp rollers will continue to rotate in opposite directions, so as to squeeze the solid waste retained in the entire equipment. The pressure exerted by the ultraviolet squeezing lamp rollers will force the retained solid waste to be squeezed. Under the action of pressure, the moisture in the solid waste will be squeezed out, thereby reducing the amount of water carried by the solid waste, making it drier and more compact, which makes it possible to separate the liquid part from the solid part more clearly. By increasing the distance between the two ultraviolet squeezing lamp rollers, the dehydration efficiency of the solid waste is improved when the moisture in the larger amount of solid waste is dehydrated and separated again, thereby avoiding the continuous accumulation of solid waste remaining inside the equipment, which affects the subsequent treatment effect of domestic sewage;

[0026] 4. During the continuous rotation of the scraper, the vibration force generated by the reciprocating up and down movement of the scraper hits the surface of the filter. The continuous vibration of the scraper can timely clean up the tiny solid particles adhering to or stuck in the aperture of the filter, maintain the patency of the filter, and ensure that the filtration efficiency of the filter will not be reduced due to blockage. The continuous vibration force can loosen the solid matter already attached to the filter, making it easier to be carried away by the subsequent water flow or scraper, thereby improving the solid-liquid separation effect. At the same time, it also helps to break up some of the originally tightly attached solid matter and promote its better separation from the sewage. When the scraper rotates against the filter, the solid waste covering the filter can be scraped off, which is convenient for the subsequent continuous filtration and separation of sewage and ensures the fluidity of sewage.

[0027] 5. The high-speed rotation of the purification filter cartridge can generate centrifugal force to enhance the separation effect of solid matter. The centrifugal force can prompt solid particles to gather to the purification filter cartridge faster and improve the separation efficiency. The dredging air plug is inserted back and forth into the aperture of the purification filter cartridge. On the one hand, it can effectively clean the fine solid particles or impurities blocking the aperture of the purification filter cartridge, maintain the patency of the purification filter cartridge, and avoid reducing the filtration effect due to blockage. The gas from the external air pump is sprayed into the aperture of the purification filter cartridge through the dredging air plug. First, the airflow impact can be used to further clean the aperture and assist in removing tiny solid matter remaining on the purification filter cartridge. Second, the airflow can loosen the solids already attached to the purification filter cartridge to a certain extent, making it easier to be carried away by centrifugal force or subsequent water flow. The gas injection can form turbulence locally, enhance the stirring and separation effect of solid matter, and avoid the accumulation of solid precipitation in the purification filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a cross-sectional view of the internal structure of the purification box of the present invention;

[0031] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A;

[0032] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0033] Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure at point C in the middle;

[0034] Figure 6 It is an internal cross-sectional view of the overall structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the partial internal structure of the drive box of the present invention;

[0036] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at D in the middle;

[0037] Figure 9 This is a schematic structural diagram of the squeeze water filter assembly of the present invention;

[0038] Figure 10 This is a schematic diagram of the structure of the repeated filtering and removing component of the present invention;

[0039] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the structure at E in the middle;

[0040] Figure 12 It is a schematic structural diagram of the conical cleaning plate of the present invention.

[0041] In the figure: 1, purification box; 2, drive box; 3, conical bottom plate; 4, flip plate; 5, discharge pipe; 6, purification and dredging components including: 601, water inlet pipe; 602, purification filter cartridge; 603, fixed pipe; 604, movable air pipe; 605, retaining ring; 606, air inlet pipe; 607, compression spring 1; 608, air collecting box; 609, dredging air plug; 610, drive motor; 611, rotating rod;

[0042] 7. Repeated filtering and cleaning components include: 701, fixed ring; 702, filter screen; 703, fixed rod; 704, second compression spring; 705, push plate; 706, push rod; 707, scraper; 708, extrusion arc convex block; 709, fixed arc convex block;

[0043] 8. The extrusion water filter assembly includes: 801, rotating shaft 1; 802, ultraviolet extrusion lamp roller; 803, telescopic plate; 804, rotating shaft 2; 805, worm gear 1; 806, worm gear 2; 807, worm gear 2; 808, worm gear 1; 809, torsion spring; 810, conical cleaning plate; 811, bidirectional screw; 812, connecting ring; 813, mounting block; 814, fixed gear; 815, moving gear; 816, micro electric gas rod; 817, connecting plate 2; 818, limiting slide groove; 819, limiting convex strip; 820, rotating rod; 9. flip rod; 10. fixing port. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] See also Figures 1 to 12 As shown, the present invention provides an embodiment: a solid-liquid separation device for purifying domestic sewage, comprising a purification box 1, a drive box 2, the drive box 2 being fixedly connected to the outer wall of the purification box 1, a conical bottom plate 3 being fixedly connected to the interior of the purification box 1, a flip plate 4 being rotatably connected to the interior of the conical bottom plate 3, a discharge pipe 5 being fixedly connected to the interior of the flip plate 4, a flip rod 9 being fixedly connected to the outer wall of the flip plate 4, a purification and dredging component 6 for preliminary solid-liquid separation of sewage being provided inside the purification box 1, a repeated filtration and removal component 7 for secondary solid-liquid separation of sewage being provided inside the purification box 1, and an extrusion water filter component 8 for extrusion and disinfection of solid-liquid separation of sewage being provided inside the purification box 1;

[0046] The squeeze water filter assembly 8 includes a rotating shaft 801 symmetrically connected to the interior of the purification box 1, the outer walls of the rotating shaft 801 are fixedly connected to the ultraviolet squeezing lamp roller 802, the end of the rotating shaft 801 away from the purification box 1 is penetrated and arranged inside the driving box 2, the inner wall of the purification box 1 is slidably connected to the telescopic plate 803, the telescopic plates 803 are respectively rotatably connected to the outer walls of the rotating shaft 801, the interior of the driving box 2 is rotatably connected to the rotating shaft 2 804, the outer wall of the rotating shaft 2 804 is symmetrically fixedly connected to the worm 1 808, the spiral grooves of the two worm 1 808 are arranged in opposite directions, the end of the rotating shaft 801 away from the ultraviolet squeezing lamp roller 802 is fixedly connected to the worm gear 1 805, the worm gear 1 805 and the worm 1 808 are respectively meshed with each other, and the outer wall of the rotating shaft 2 804 is fixedly connected to the worm gear 2 806;

[0047] The squeeze water filter assembly 8 also includes a connecting ring 812 that is rotatably connected to the outer wall of the rotating shaft 801, and a bidirectional screw 811 is rotatably connected to the inside of the driving box 2. The bottom of the connecting ring 812 is fixedly connected to a mounting block 813, and the mounting block 813 is threadedly connected to the outer wall of the bidirectional screw 811. The outer wall of the rotating shaft 2 804 is fixedly connected to a fixed gear 814, and the outer wall of the bidirectional screw 811 is slidably connected to a moving gear 815. The outer wall of the moving gear 815 is rotatably connected to a connecting plate 2 817. The inner wall of the driving box 2 is fixedly connected to a micro-electric gas rod 816, and the telescopic shaft of the micro-electric gas rod 816 is fixedly connected to the connecting plate 2 817. The connecting plate 2 817 is slidably connected to the outer wall of the bidirectional screw 811. A limiting slide 818 is provided inside the moving gear 815, and the outer wall of the bidirectional screw 811 is fixedly connected to a limiting ridge 819, and the limiting ridge 819 is slidably connected to the inside of the limiting slide 818.

[0048] The squeeze water filter assembly 8 further includes a rotating rod 820 symmetrically connected to the inner wall of the purification box 1. The outer wall of the rotating rod 820 is fixedly connected to a conical cleaning plate 810. The outer wall of the rotating rod 820 is sleeved with a torsion spring 809. Both ends of the torsion spring 809 are fixedly connected to the inner side of the conical cleaning plate 810. The conical ends of the conical cleaning plate 810 are in contact with the upper surface of the ultraviolet squeeze lamp roller 802.

[0049] Specifically, by rotating the two ultraviolet squeeze lamp rollers 802 of the squeezing water filter assembly 8 in opposite directions, the downward-flowing domestic sewage can be squeezed, and the rolling squeezing action can push the sewage through the two ultraviolet squeeze lamp rollers 802. As the two ultraviolet squeeze lamp rollers 802 rotate in opposite directions, the sewage will be continuously pushed and squeezed, so that the solid particles therein are more concentratedly gathered together, and the squeezed water can flow out of the squeezed area more smoothly, further promoting the separation of solid and liquid.

[0050] The purification and dredging component 6 includes a water inlet pipe 601 rotatably connected to the interior of the purification box 1, the bottom of the water inlet pipe 601 is fixedly connected to a purification filter cartridge 602, the purification filter cartridge 602 is rotatably connected to the interior of the purification box 1, and the bottom of the purification filter cartridge 602 is detachably mounted with a bottom plate. The upper surface of the drive box 2 is fixedly connected to a drive motor 610, the output shaft of the drive motor 610 is fixedly connected to a rotating rod 611, the rotating rod 611 is rotatably connected to the interior of the drive box 2, the outer wall of the rotating rod 611 is fixedly connected to a worm gear 807, the water inlet pipe 601 and the rotating rod 611 are connected by a belt drive, and the worm gear 807 and the worm gear 806 are meshed with each other;

[0051] The purification and dredging component 6 also includes four fixed tubes 603 symmetrically fixedly connected to the interior of the purification box 1. The interior of the fixed tubes 603 is slidably connected to a mobile air pipe 604. The end of the mobile air pipe 604 close to the purification filter cartridge 602 is fixedly connected to an air collecting box 608. The side of the air collecting box 608 away from the mobile air pipe 604 is fixedly connected to a linear array of dredging air plugs 609. The tips of the dredging air plugs 609 are inserted into the aperture of the purification filter cartridge 602. The outer wall of the mobile air pipe 604 is fixedly connected to a retaining ring 605, and the outer wall of the mobile air pipe 604 is sleeved with a compression spring 607. The two ends of the compression spring 607 are respectively fixedly connected to the inner wall of the fixed pipe 603 and the retaining ring 605. The end of the mobile air pipe 604 away from the air collecting box 608 is fixedly connected to the air intake pipe 606, and the end of the air intake pipe 606 away from the mobile air pipe 604 is connected to an external air pump. The inner wall of the aperture opened on the outer wall of the purification filter cartridge 602 is an inclined surface;

[0052] Specifically, the high-speed rotation of the purification filter cartridge 602 in the purification and unblocking component 6 can generate centrifugal force to enhance the separation effect of solid matter. The centrifugal force can prompt solid particles to gather to the purification filter cartridge 602 more quickly, thereby improving the separation efficiency. Secondly, the dredging air plug 609 is reciprocatedly inserted into the aperture of the purification filter cartridge 602. On the one hand, it can effectively clean the fine solid particles or impurities blocking the aperture of the purification filter cartridge 602, maintain the patency of the purification filter cartridge 602, and avoid reducing the filtering effect due to blockage. The gas from the external air pump is sprayed into the aperture of the purification filter cartridge 602 through the dredging air plug 609. First, the airflow impact can be used to further clean the aperture to assist in removing tiny solid matter remaining on the purification filter cartridge 602. Second, the airflow can loosen the solids already attached to the purification filter cartridge 602 to a certain extent, making it easier to be carried away by centrifugal force or subsequent water flow.

[0053] The repeated filtering and removing component 7 includes a fixing ring 701 fixedly connected to the inner wall of the purification box 1, a filter screen 702 is detachably installed inside the fixing ring 701, a fixing rod 703 is fixedly connected to the bottom of the bottom plate, a second compression spring 704 is fixedly connected to the inner wall of the fixing rod 703, a push plate 705 is fixedly connected to the bottom end of the second compression spring 704, a push plate 705 is fixedly connected to the bottom of the push plate 705, a push rod 706 is fixedly connected to the bottom end of the push rod 706, a scraper 707 is fixedly connected to the bottom of the scraper 707, an extrusion arc-shaped protrusion 708 is symmetrically fixedly connected, and four fixed arc-shaped protrusions 709 are symmetrically fixedly connected to the upper surface of the fixing ring 701;

[0054] Specifically, the vibration force generated by the repeated up and down movement of the scraper 707 of the filtering and cleaning component 7 hits the surface of the filter 702, effectively preventing the accumulation and blockage of solid matter on the surface of the filter 702. The continuous vibration of the scraper 707 can timely clean up the tiny solid particles adhering to or stuck in the aperture of the filter 702, maintain the patency of the filter 702, and ensure that the filtration efficiency of the filter 702 will not be reduced due to blockage. The continuous vibration force can loosen the solid matter that has been attached to the filter 702, making it easier to be carried away by the subsequent water flow or the scraper 707, thereby improving the solid-liquid separation effect. At the same time, it also helps to break up some solid matter that was originally tightly attached, promoting its better separation from the sewage. The vibration can enhance the overall cleaning effect of the filter 702, reduce residual impurities, and extend the service life of the filter 702.

[0055] Reference Figure 6 and Figure 7 As shown, the interior of the purification box 1 and the drive box 2 are respectively provided with a fixing opening 10, the rotating shaft 801 is slidably connected to the interior of the fixing opening 10, and the side of the telescopic plate 803 away from the ultraviolet extrusion lamp roller 802 is slidably connected to the position of the fixing opening 10;

[0056] Reference Figure 8 As shown, the limiting ridge 819 and the limiting chute 818 are both cross-shaped. A turbidity sensor is provided inside the purification box 1, and the turbidity sensor is located between the fixing ring 701 and the ultraviolet squeeze lamp roller 802;

[0057] Example 2:

[0058] A treatment process of a solid-liquid separation device for domestic sewage purification comprises the following steps:

[0059] Step 1: After the domestic sewage enters the interior of the purification filter cartridge 602 from the inlet of the water inlet pipe 601 through the pipeline, the drive motor 610 is started to operate, and the water inlet pipe 601 and the purification filter cartridge 602 are rotated at high speed through the belt. The centrifugal force of the rotation of the purification filter cartridge 602 performs a preliminary filtration of the domestic sewage inside. Large solid waste remains in the purification filter cartridge 602, and the domestic sewage is thrown out into the purification box 1 through the aperture of the purification filter cartridge 602;

[0060] Step 2: When performing preliminary solid-liquid separation on domestic sewage, the gas is pumped into the gas collecting box 608 through the air inlet pipe 606 and the mobile air pipe 604 by an external air pump for storage, and the gas with impact force inside the gas collecting box 608 is blown into the interior of the purification filter cartridge 602 through the dredging air plug 609 toward the pore diameter of the purification filter cartridge 602. When the purification filter cartridge 602 rotates, the rotational force pushes the dredging air plug 609, the gas collecting box 608, and the mobile air pipe 604 to move, and the reciprocating movement of the dredging air plug 609 pushes the solid waste blocked in the pore diameter of the purification filter cartridge 602 into the purification filter cartridge 602;

[0061] Step 3: The domestic sewage and small particles of solid waste thrown onto the fixed ring 701 and the filter 702 are separated into solid and liquid by the filter 702, so that the solid waste remains on the filter 702 and the sewage flows downward;

[0062] Step 4: During the rotation of the purification filter cartridge 602, the scraper 707 rotates synchronously with it. The scraper 707 can scrape off the solid waste covered on the filter screen 702. When the extrusion arc-shaped protrusion 708 rotates on the fixed arc-shaped protrusion 709, the up and down vibration force generated by the scraper 707 vibrates and knocks the filter screen 702, thereby vibrating and clearing the solid waste blocking the pores of the filter screen 702.

[0063] Step 5: After the turbidity sensor automatically senses the volume content of solid waste in the sewage separated from the filter 702, it sends a signal to the controller, which drives the controller to adjust the distance between the two ultraviolet squeeze lamp rollers 802. If the turbidity sensor senses that the volume of solid waste in the sewage is small, the distance between the two ultraviolet squeeze lamp rollers 802 is adjusted to be smaller than the volume of the solid waste. If the turbidity sensor senses that the volume of solid waste in the sewage is large, the distance between the two ultraviolet squeeze lamp rollers 802 is adjusted to be larger accordingly, but the distance between the two ultraviolet squeeze lamp rollers 802 is still smaller than the volume of the solid waste.

[0064] Step 6: The two UV squeeze lamp rollers 802 rotate in opposite directions, squeezing the falling domestic sewage with the squeezing force of the UV squeeze lamp rollers 802. The squeezed liquid is discharged through the discharge pipe 5, while a portion of the squeezed solid waste falls onto the turning plate 4, and a small portion adheres to the UV squeeze lamp rollers 802.

[0065] Step 7: The tip of the conical cleaning plate 810 always contacts the ultraviolet squeeze lamp roller 802, so that the solid waste adhering to the ultraviolet squeeze lamp roller 802 can be scraped off. After the liquid is discharged, the solid waste accumulated on the upper part can be poured out by turning the turning plate 4.

[0066] In combination with the above preferred embodiments, the working principle of the present invention is as follows:

[0067] In the initial state, the dredging plug 609 is inserted into the aperture of the purification filter cartridge 602, the compression spring 1 607 is not compressed, the compression spring 2 704 is not compressed, the bottom of the scraper 707 is in contact with the upper surface of the filter 702, the extrusion arc protrusion 708 and the fixed arc protrusion 709 are not in contact, the moving gear 815 and the fixed gear 814 are in a separated state, the telescopic shaft of the micro electric gas rod 816 is in a retracted state, and the torsion spring 809 is in a twisted state.

[0068] While working:

[0069] The staff transfers the domestic sewage to the purification filter cartridge 602 through the water inlet pipe 601, and the staff electrically controls the driving motor 610 through the controller to start the rotation of the rotating rod 611 fixedly connected thereto. The rotation of the rotating rod 611 drives the water inlet pipe 601 to rotate through the belt, and the rotation of the water inlet pipe 601 drives the purification filter cartridge 602 fixedly connected thereto to rotate synchronously. The centrifugal force generated by the rotation of the purification filter cartridge 602 swings the domestic sewage inside the purification filter cartridge 602, and the solid waste in the domestic sewage is filtered by the purification filter cartridge 602 and retained inside, while the liquid in the domestic sewage is thrown out into the interior of the purification box 1 through the aperture of the purification filter cartridge 602. Since the aperture of the purification filter cartridge 602 only filters larger particles of solid waste, some small particles of solid waste will still exist in the domestic sewage thrown out.

[0070] In the process of separating and filtering domestic sewage through the purification filter cartridge 602, since the inner wall of the aperture opened on the outer wall of the purification filter cartridge 602 is an inclined surface, the rotational force passing through the purification filter cartridge 602 causes the dredge air plug 609 inserted in the hole of the purification filter cartridge 602 to be squeezed out with the assistance of the inclined surface of the inner wall of the aperture, so that the dredge air plug 609 is separated from the hole of the purification filter cartridge 602. In the process of separation, the dredge air plug 609 drives the air collecting box 608 fixedly connected to it to move toward the direction of the fixed pipe 603. The movement of the air collecting box 608 drives the mobile air pipe 604 fixedly connected to it to move synchronously. The movement of the mobile air pipe 604 drives the retaining ring 605 fixedly connected to it to slide on the fixed pipe 603. Inside, the compression spring 1 607 is in a compressed state at this time. When the purification filter cartridge 602 continues to rotate, the aperture of the purification filter cartridge 602 is aligned with the dredge air plug 609. When there is no blocking force, the compression spring 1 607 pushes the retaining ring 605 and the movable air pipe 604 to reset through the self-rebound force of the compression spring 1 607. The movable air pipe 604 drives the air collecting box 608 and the dredge air plug 609 to reset, so that the dredge air plug 609 is plugged into the aperture of the purification filter cartridge 602 again. The dredge air plug 609 is reciprocally plugged into the aperture of the purification filter cartridge 602, and the solid waste blocked in the aperture of the purification filter cartridge 602 can be dredged through the dredge air plug 609.

[0071] At the same time, the gas is transported to the mobile air pipe 604 through the external air pump through the air inlet pipe 606, and the gas then enters the interior of the air collecting box 608 through the mobile air pipe 604, and the gas in the air collecting box 608 is ejected through multiple air vent plugs 609, and the ejected gas can clear and clean the impurities adhering to the inner wall of the aperture of the purification filter cartridge 602, so as to ensure the cleanliness of the purification filter cartridge 602 when performing preliminary solid-liquid separation of domestic sewage. First, the high-speed rotation of the purification filter cartridge 602 can generate centrifugal force to enhance the separation effect of solid matter. The centrifugal force can prompt solid particles to gather to the purification filter cartridge 602 faster, thereby improving the separation efficiency. Secondly, the air vent plug 609 is reciprocatedly inserted into the aperture of the purification filter cartridge 602. On the one hand, it can effectively clean the fine solid particles or impurities blocking the aperture of the purification filter cartridge 602, and maintain The patency of the purification filter cartridge 602 is improved to avoid the reduction of the filtering effect due to blockage. On the other hand, this reciprocating motion can play a certain mechanical cleaning role on the purification filter cartridge 602, reducing the adhesion and accumulation of solid matter on the surface of the purification filter cartridge 602. Moreover, the gas from the external air pump is sprayed to the inside of the aperture of the purification filter cartridge 602 through the dredging air plug 609. First, the aperture can be further cleaned by the impact of the air flow, helping to remove the tiny solid matter remaining on the purification filter cartridge 602. Second, the air flow can loosen the solids already attached to the purification filter cartridge 602 to a certain extent, making it easier to be carried away by centrifugal force or subsequent water flow. Third, the injection of gas can form turbulence locally, thereby enhancing the stirring and separation effect of the solid matter, and avoiding the effect of solid precipitation and accumulation in the purification filter cartridge 602, thereby further improving the solid-liquid separation efficiency in domestic sewage.

[0072] The domestic sewage after the initial solid-liquid separation flows directly into the top of the fixed ring 701, and the domestic sewage after the initial separation is filtered and separated again through the filter screen 702. Since the aperture of the filter screen 702 is smaller than the aperture of the purification filter cartridge 602, the filter screen 702 can perform solid-liquid separation on smaller impurities in the domestic sewage again, and the solid waste remains on the filter screen 702, while the separated sewage flows downward through the aperture of the filter screen 702. Since the bottom plate of the purification filter cartridge 602 is fixed to the fixed rod 703, when the purification filter cartridge 602 drives the bottom plate to rotate, the fixed rod 703, the compression spring 704, the push plate 705, the push rod 706, the scraper 707 and the extrusion arc-shaped protrusion 708 connected to the bottom plate rotate synchronously, and the scraper The bottom of 707 contacts the upper surface of the filter screen 702. The rotation of the scraper 707 can scrape away the solid waste covered on the surface of the filter screen 702, so that the sewage that has been initially filtered and separated can be filtered and separated again. When the extruded arc-shaped protrusion 708 at the bottom of the scraper 707 rotates on one side of the fixed arc-shaped protrusion 709, the edges of the extruded arc-shaped protrusion 708 and the fixed arc-shaped protrusion 709 are both arc-shaped, so that the extruded arc-shaped protrusion 708 is squeezed and slid to the top of the fixed arc-shaped protrusion 709 through the arc plate during rotation. When the extruded arc-shaped protrusion 708 contacts the fixed arc-shaped protrusion 709, the extruded arc-shaped protrusion 708 pushes the scraper 707 to slide upward at the height of the fixed arc-shaped protrusion 709, and the upward sliding of the scraper 707 pushes it to contact with the fixed arc-shaped protrusion 709. The push rod 706 connected to the filter screen slides up, and the upward sliding of the push rod 706 pushes the push plate 705 to slide up. The upward sliding of the push plate 705 compresses the compression spring 2 704. When the extruded arc-shaped protrusion 708 continues to rotate and disengages from the fixed arc-shaped protrusion 709, the compression rebound force of the compression spring 2 704 itself pushes the push plate 705, the push rod 706, the scraper 707 and the extruded arc-shaped protrusion 708 to slide down and reset, so that the scraper 707 again contacts the upper surface of the filter screen 702. The vibration force generated by the continuous reciprocating up and down movement of the scraper 707 hits the surface of the filter screen 702, effectively preventing the accumulation and blockage of solid matter on the surface of the filter screen 702. The continuous vibration of the scraper 707 can timely clean up the sticking or stuck in the aperture of the filter screen 702. The tiny solid particles can be removed to maintain the patency of the filter 702, ensuring that the filtration efficiency of the filter 702 will not be reduced due to blockage. The continuous vibration force can loosen the solid matter already attached to the filter 702, making it easier to be taken away by the subsequent water flow or scraper 707, thereby improving the effect of solid-liquid separation. At the same time, it can also help to break up some solid matter that was originally tightly attached, promoting its better separation from the sewage. The vibration can enhance the overall cleaning effect of the filter 702, reduce impurity residues, and extend the service life of the filter 702. The continuous vibration can also promote the flow and mixing of sewage to a certain extent, so that the solid matter in the sewage is more evenly distributed on the surface of the filter 702, avoiding local accumulation, thereby further optimizing the effect of solid-liquid separation.

[0073] After the solid waste in the domestic sewage is effectively separated after double filtration, the separated sewage continues to fall on the two ultraviolet squeezing lamp rollers 802, and the rotation of the rotating rod 611 drives the worm 2 807 fixedly connected to it to rotate, and the rotation of the worm 2 807 drives the worm wheel 2 806 meshing with it to rotate, and the rotation of the worm wheel 2 806 drives the rotating shaft 2 804 fixedly connected to it to rotate, and the rotation of the rotating shaft 2 804 drives the two worm 1s 808 to rotate synchronously. Since the spiral grooves on the surfaces of the two worm 1s 808 are arranged in opposite directions, the rotation of the worm 1 808 drives the two worm wheels 1 805 meshing with it to rotate in opposite directions, and the rotation of the two worm wheels 1 805 in opposite directions drives the rotating shaft 1 801 fixedly connected to it to rotate, and the rotation of the rotating shaft 1 801 drives the ultraviolet squeezing lamp rollers 802 fixedly connected to it to rotate in opposite directions. The two ultraviolet squeezing lamp rollers 802 rotate in opposite directions to squeeze the domestic sewage flowing downward, and the rolling squeezing action can be achieved by the two ultraviolet squeezing lamp rollers 802. 02 plays a pushing role on the sewage. As the two ultraviolet squeezing lamp rollers 802 rotate in opposite directions, the sewage will be continuously pushed and squeezed, so that the solid particles therein are more concentrated and gathered together, and the squeezed water can flow out more smoothly from the squeezed area, further promoting the separation of solid and liquid. The mechanical squeezing method can break the relatively weak binding state between some solid particles and water, so that tiny solid particles that are originally difficult to separate can also be separated from water under pressure. The continuous rotation of the two ultraviolet squeezing lamp rollers 802 in opposite directions can maintain continuous treatment of sewage, adapt to the flow characteristics of sewage, and continuously perform solid-liquid separation operations during the flow of sewage, thereby improving the efficiency and continuity of separation. After multiple filtrations, the solid waste contained in the final sewage is significantly separated, and some small particles of waste smaller than the aperture of the filter screen 702 remain. The smaller particles of waste adhere to the outer wall of the ultraviolet squeezing lamp roller 802 during the squeezing process, and the squeezed water is discharged through the discharge pipe 5;

[0074] During the rotation process, the small amount of solid waste particles adhering to the outer wall of the ultraviolet squeeze lamp roller 802 are driven by the torsion force of the torsion spring 809 to rotate the conical cleaning plates 810 fixed thereto, so that the tips of the two conical cleaning plates 810 tightly contact the surface of the ultraviolet squeeze lamp roller 802. The scraping force of the tips of the conical cleaning plates 810 can scrape off the small amount of solid waste particles adhering to the outer wall of the ultraviolet squeeze lamp roller 802, so that the small particles of waste are separated from the ultraviolet squeeze lamp roller 802, and the small particles of solid waste remain above the two ultraviolet squeeze lamp rollers 802.

[0075] After the sewage treatment is completed, since the solid waste separated from the purification filter cartridge 602 and the filter screen 702 still contains sewage, the staff will dismantle the bottom plate of the purification filter cartridge 602, pour the solid waste separated from the purification filter cartridge 602 onto the filter screen 702, and then dismantle the filter screen 702 and pour the solid waste accumulated on the filter screen 702 between the two ultraviolet squeeze lamp rollers 802. Since the distance between the two ultraviolet squeeze lamp rollers 802 was small during the previous sewage squeezing process, in order to separate the sewage from the separated solid waste more thoroughly, it is necessary to move the two ultraviolet squeeze lamps 802 closer together. The distance between the rollers 802 is increased, and the controller electrically controls the telescopic shaft of the micro electric pneumatic rod 816 to extend and push the connecting plate 2 817 and the moving gear 815 fixedly connected thereto to move in the direction of the worm 2 807, so that the moving gear 815 is in a meshing state with the fixed gear 814. At this time, the rotating shaft 2 804 drives the fixed gear 814 fixedly connected thereto to rotate, and the fixed gear 814 drives the moving gear 815 meshed with it to rotate synchronously. The rotation of the moving gear 815 drives the bidirectional screw 811 to rotate through the blocking force generated by the cross-shaped limiting groove 818 and the limiting ridge 819. The bidirectional thread of the rod 811 can move the two mounting blocks 813 in the direction away from each other, and the movement of the mounting block 813 drives the connecting ring 812 fixedly connected thereto to move, and the connecting ring 812 drives the rotating shaft 1 801 connected thereto to move, and the movement of the rotating shaft 1 801 drives the ultraviolet squeezing lamp roller 802 fixedly connected thereto to move, so that the distance between the two ultraviolet squeezing lamp rollers 802 can be adjusted easily. By continuously rotating the two ultraviolet squeezing lamp rollers 802 in opposite directions, the solid waste retained in the entire device can be squeezed, and the pressure exerted by the ultraviolet squeezing lamp rollers 802 will force the retained solid waste to move. The waste is squeezed, and under the action of pressure, the moisture in the solid waste will be squeezed out, thereby reducing the amount of water carried by the solid waste, making it drier and more compact, which makes it possible to separate the liquid part from the solid part more clearly. After the solid waste remaining in the equipment is squeezed and dehydrated, the squeezed solid waste falls on the top of the flip plate 4, and the staff rotates the flip rod 9 to drive the flip plate 4 fixedly connected to it to flip, and the flipping of the flip plate 4 can remove the solid waste squeezed and dehydrated on the surface, thereby avoiding the continuous accumulation of solid waste remaining inside the equipment, which affects the subsequent treatment effect of domestic sewage.

[0076] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0077] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for purifying domestic sewage, comprising a purification box (1) and a drive box (2), wherein the drive box (2) is fixedly connected to the outer wall of the purification box (1), characterized in that: The interior of the purification box (1) is fixedly connected to a conical bottom plate (3), the interior of the conical bottom plate (3) is rotatably connected to a flip plate (4), the interior of the flip plate (4) is fixedly connected to a discharge pipe (5), the outer wall of the flip plate (4) is fixedly connected to a flip rod (9), the interior of the purification box (1) is provided with a purification and dredging component (6) for preliminary solid-liquid separation of sewage, the interior of the purification box (1) is provided with a repeated filtering and clearing component (7) for secondary solid-liquid separation of sewage, and the interior of the purification box (1) is provided with an extrusion filter component (8) for extrusion and disinfection of solid-liquid separation of sewage; The squeeze water filter assembly (8) includes a rotating shaft (801) symmetrically connected to the inside of the purification box (1), the outer wall of the rotating shaft (801) is fixedly connected to the ultraviolet squeeze lamp roller (802), the end of the rotating shaft (801) away from the purification box (1) is penetrated and arranged in the inside of the driving box (2), the inner wall of the purification box (1) is slidably connected to the telescopic plate (803), the telescopic plate (803) is respectively connected to the outer wall of the rotating shaft (801), and the driving The box (2) is internally rotatably connected to a second rotating shaft (804), and the outer wall of the second rotating shaft (804) is symmetrically fixedly connected to a worm gear (808), and the spiral grooves of the two worm gears (808) are arranged in opposite directions. The ends of the first rotating shaft (801) away from the ultraviolet extrusion lamp roller (802) are fixedly connected to a worm gear (805), and the worm gear (805) and the worm gear (808) are respectively engaged with each other. The outer wall of the second rotating shaft (804) is fixedly connected to a worm gear (806); The squeeze water filter assembly (8) further comprises a connecting ring (812) rotatably connected to the outer wall of the rotating shaft (801); a bidirectional screw (811) is rotatably connected inside the driving box (2); a mounting block (813) is fixedly connected to the bottom of the connecting ring (812); the mounting block (813) is threadedly connected to the outer wall of the bidirectional screw (811); a fixed gear (814) is fixedly connected to the outer wall of the rotating shaft (804); a movable gear (815) is slidably connected to the outer wall of the bidirectional screw (811); and the movable gear (815) is fixedly connected to the outer wall of the rotating shaft (804). The outer wall is rotatably connected to a second connecting plate (817), the inner wall of the drive box (2) is fixedly connected to a micro electric pneumatic rod (816), the telescopic shaft of the micro electric pneumatic rod (816) is fixedly connected to the second connecting plate (817), the second connecting plate (817) is slidably connected to the outer wall of the bidirectional screw (811), the interior of the movable gear (815) is provided with a limiting sliding groove (818), the outer wall of the bidirectional screw (811) is fixedly connected to a limiting convex strip (819), and the limiting convex strip (819) is slidably connected to the interior of the limiting sliding groove (818); The squeeze water filter assembly (8) further comprises a rotating rod (820) symmetrically connected to the inner wall of the purification box (1), the outer wall of the rotating rod (820) being fixedly connected to a conical cleaning plate (810), the outer wall of the rotating rod (820) being sleeved with a torsion spring (809), both ends of the torsion spring (809) being fixedly connected to the inner side of the conical cleaning plate (810), and the conical ends of the conical cleaning plate (810) being in contact with the upper surface of the ultraviolet squeeze lamp roller (802).

2. A solid-liquid separation device for domestic sewage purification according to claim 1, characterized in that: The purification and dredging component (6) includes a water inlet pipe (601) rotatably connected to the interior of the purification box (1); the bottom of the water inlet pipe (601) is fixedly connected to a purification filter cartridge (602); the purification filter cartridge (602) is rotatably connected to the interior of the purification box (1); the bottom of the purification filter cartridge (602) is detachably mounted with a bottom plate; the upper surface of the drive box (2) is fixedly connected to a drive motor (610); the output shaft of the drive motor (610) is fixedly connected to a rotating rod (611); the rotating rod (611) is rotatably connected to the interior of the drive box (2); the outer wall of the rotating rod (611) is fixedly connected to a second worm gear (807); the water inlet pipe (601) and the rotating rod (611) are connected via a belt drive; the second worm gear (807) and the second worm gear (806) are meshed with each other.

3. A solid-liquid separation device for domestic sewage purification according to claim 2, characterized in that: The purification and unblocking component (6) further comprises four fixed tubes (603) symmetrically fixedly connected to the interior of the purification box (1), wherein the interiors of the fixed tubes (603) are all slidably connected to movable air pipes (604), and one end of the movable air pipe (604) close to the purification filter cartridge (602) is fixedly connected to an air collecting box (608), and one side of the air collecting box (608) away from the movable air pipe (604) is fixedly connected to dredging air plugs (609) arranged in a linear array, wherein the tips of the dredging air plugs (609) are inserted into the purification filter cartridge (602). The filter holes of the filter cartridge (602) are fixedly connected to the outer wall of the movable air pipe (604) with a retaining ring (605), the outer wall of the movable air pipe (604) is sleeved with a compression spring (607), the two ends of the compression spring (607) are respectively fixedly connected to the inner wall of the fixed pipe (603) and the retaining ring (605), the end of the movable air pipe (604) away from the air collecting box (608) is fixedly connected to the air intake pipe (606), and the end of the air intake pipe (606) away from the movable air pipe (604) is connected to an external air pump.

4. A solid-liquid separation device for domestic sewage purification according to claim 2, characterized in that: The repeated filtering and removing component (7) includes a fixed ring (701) fixedly connected to the inner wall of the purification box (1), a filter screen (702) is detachably installed inside the fixed ring (701), a fixed rod (703) is fixedly connected to the bottom of the bottom plate, a compression spring 2 (704) is fixedly connected to the inner wall of the fixed rod (703), a push plate (705) is fixedly connected to the bottom end of the compression spring 2 (704), a push plate (705) is fixedly connected to the bottom of the push plate (705), a push rod (706) is fixedly connected to the bottom end of the push rod (706), a scraper (707) is fixedly connected to the bottom of the scraper (707), an extrusion arc-shaped protrusion (708) is symmetrically fixedly connected, and four fixed arc-shaped protrusions (709) are symmetrically fixedly connected to the upper surface of the fixed ring (701).

5. The solid-liquid separation device for domestic sewage purification according to claim 1, characterized in that: The purification box (1) and the drive box (2) are each provided with a fixing opening (10), the rotating shaft (801) is slidably connected to the inside of the fixing opening (10), and the telescopic plate (803) is slidably connected to the position of the fixing opening (10) on the side away from the ultraviolet extrusion lamp roller (802).

6. The solid-liquid separation device for domestic sewage purification according to claim 1, characterized in that: The limiting convex strip (819) and the limiting sliding groove (818) are both cross-shaped. A turbidity sensor is provided inside the purification box (1), and the turbidity sensor is located between the fixing ring (701) and the ultraviolet extrusion lamp roller (802).

7. A treatment process for a solid-liquid separation device for purifying domestic sewage according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: After the domestic sewage enters the interior of the purification filter cartridge (602) from the inlet of the water inlet pipe (601) through the pipeline, the drive motor (610) is started to operate, and the water inlet pipe (601) and the purification filter cartridge (602) are rotated at high speed through the belt. The domestic sewage inside is initially filtered by the centrifugal force of the rotation of the purification filter cartridge (602), and larger solid wastes are retained in the interior of the purification filter cartridge (602). The domestic sewage is thrown out into the purification box (1) through the aperture of the purification filter cartridge (602); Step 2: When performing preliminary solid-liquid separation on domestic sewage, the gas is pumped into the gas collecting box (608) through the air inlet pipe (606) and the mobile air pipe (604) by an external air pump and stored. The gas with impact force inside the gas collecting box (608) is blown into the inside of the purification filter cartridge (602) through the dredging air plug (609) in the diameter of the aperture of the purification filter cartridge (602). When the purification filter cartridge (602) rotates, the rotational force pushes the dredging air plug (609), the gas collecting box (608), and the mobile air pipe (604) to move, and the solid waste blocked in the aperture of the purification filter cartridge (602) is pushed into the purification filter cartridge (602) by the reciprocating movement of the dredging air plug (609); Step 3: Domestic sewage and small particles of solid waste thrown onto the fixed ring (701) and the filter (702) are separated into solid and liquid by the filter (702), so that the solid waste remains on the filter (702) and the sewage flows downward; Step 4: During the rotation of the purification filter cartridge (602), the scraper (707) is caused to rotate synchronously. The scraper (707) can scrape away the solid waste covered on the filter screen (702). When the extrusion arc-shaped protrusion (708) rotates on the fixed arc-shaped protrusion (709), the up and down vibration force generated by the scraper (707) vibrates and strikes the filter screen (702), thereby vibrating and clearing the solid waste blocked in the aperture of the filter screen (702); Step 5: After the turbidity sensor automatically senses the volume content of the solid waste in the sewage separated from the filter (702), it sends a signal to the controller, which drives the controller to adjust the distance between the two ultraviolet squeeze lamp rollers (802). If the turbidity sensor senses that the volume of the solid waste in the sewage is small, the distance between the two ultraviolet squeeze lamp rollers (802) is adjusted to be smaller than the diameter of the solid waste. If the turbidity sensor senses that the volume of the solid waste in the sewage is large, the distance between the two ultraviolet squeeze lamp rollers (802) is adjusted to be larger accordingly, but the distance between the two ultraviolet squeeze lamp rollers (802) is still smaller than the diameter of the solid waste. Step 6: The two ultraviolet squeeze lamp rollers (802) rotate in opposite directions, and the ultraviolet squeeze lamp rollers (802) squeeze the falling domestic sewage through the squeezing force, and the squeezed liquid is discharged through the discharge pipe (5), while a part of the squeezed solid waste falls on the turning plate (4), and a small part adheres to the ultraviolet squeeze lamp rollers (802); Step 7: The tip of the conical cleaning plate (810) is always in contact with the ultraviolet extrusion lamp roller (802), so that the solid waste adhering to the ultraviolet extrusion lamp roller (802) can be scraped off. After the liquid is discharged, the solid waste accumulated on the upper part can be poured out by turning the turning plate (4).

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