Rural domestic sewage treatment equipment

Abstract

The application discloses a rural domestic sewage treatment equipment, and relates to the technical field of sewage treatment, aiming to solve the technical problem of poor efficiency of traditional sedimentation method in treating rural domestic sewage, comprising a sewage pool, a speed reducer is installed at the center of the sewage pool, the driving end of the speed reducer penetrates through the sewage pool and is connected with a driving rod, stirring structure is arranged on the outer periphery of the driving rod, and the upper half of the outer periphery of the driving rod is connected with a plankton cleaning structure, a flocculation suction structure and a deflocculation roller. The application adopts magnetic seed spheres for flocculation and adsorption, replaces the traditional sedimentation method, and significantly improves the treatment efficiency of small solid particle impurities. The magnetic seed spheres continuously adsorb small particles in the sewage flow process through various mechanisms such as surface adsorption, bridging effect and adsorption layer trapping. The design not only saves a large amount of treatment time, but also reduces the equipment floor area. Meanwhile, the magnetic seed spheres can be reused, thereby reducing the operation cost, and are especially suitable for rural areas with limited economic conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment technical field, more particularly, to a rural domestic sewage treatment equipment. BACKGROUND

[0002] In the vast rural areas, domestic sewage sources are extensive, including kitchen wastewater, washing sewage and the like, which contain a large amount of silt, food residue, fiber debris and other small solid particle impurities. These impurities have a small particle size (usually in microns) and a density close to that of water, making it difficult for traditional sedimentation methods to achieve rapid and effective solid-liquid separation. Sedimentation treatment relies on gravity to make particles settle naturally, but is limited by the slow settling speed of small particles, and the treatment period is often several hours or even several days. Long-term sedimentation not only occupies a large amount of equipment space and delays the processing flow, but also causes bacteria to breed in the sewage during the standing process, exacerbating water corruption and deterioration, and affecting the subsequent purification treatment effect. For example, in rural areas where seasonal rainfall is frequent, the demand for sewage treatment increases, and the problem of insufficient treatment capacity of the sedimentation equipment is particularly prominent, resulting in untreated sewage directly entering the subsequent purification link, clogging the filter membrane, consuming chemicals, greatly reducing the purification efficiency, and even causing equipment failure. In addition, the traditional sedimentation method also has the problems of inconvenient solid residue cleaning and high labor maintenance cost. In view of this, we propose a rural domestic sewage treatment equipment. SUMMARY

[0003] The present application aims to provide a rural domestic sewage treatment equipment to solve the technical problem of poor efficiency of traditional sedimentation method in treating rural domestic sewage.

[0004] To solve the above technical problems, the present application provides the following technical scheme: a rural domestic sewage treatment equipment, comprising a sewage pool, the outer edge of the sewage pool is provided as a plankton cleaning area, a walkway platform is arranged on the top of the sewage pool, a reduction motor is installed at the center of the walkway platform, a drive rod is connected to the drive end of the reduction motor and penetrates the sewage pool, and a stirring structure is arranged on the outer periphery of the drive rod.

[0005] A plankton cleaning structure is connected to the upper half of the outer periphery of the drive rod, the plankton cleaning structure comprises a spiral coil plate, the spiral coil plate has a spiral structure, a communication pipe is arranged below the drive rod and communicates with the liquid outlet of the sewage pool, a flocculation suction structure is connected to the communication pipe, the flocculation suction structure comprises a flocculation channel with an inverted V-shaped gap, a plurality of magnetic seed spheres are arranged in the flocculation channel, the plurality of magnetic seed spheres are arrayed and have magnetism, a miscellaneous storage frame is arranged at the bottom of the flocculation suction structure, and an ultrafiltration layer is arranged at the bottom of the flocculation channel and the miscellaneous storage frame.

[0006] Preferably, the stirring structure comprises a plurality of stirring blades, the height of the stirring blades is lower than the spiral plate and is submerged under water, a connecting frame is arranged below the stirring blades and is fixed with the driving rod, and a scraping plate is connected with the connecting frame.

[0007] Preferably, the floating cleaning structure comprises a fixed plate, the fixed plate is fixed with the driving rod, the bottom of the fixed plate is connected with the top of the spiral plate, and the upper half of the spiral plate is higher than the horizontal plane.

[0008] Preferably, the flocculation suction structure comprises an outer cone top plate and an inner cone top plate, the outer cone top plate and the inner cone top plate are in a conical structure, the flocculation channel is located between the adjacent side of the outer cone top plate and the inner cone top plate, a plurality of recessed ball grooves are arranged between the outer cone top plate and the inner cone top plate, an installation arc plate is mounted on the inner wall of the recessed ball groove of the inner cone top plate, and the magnetic seed ball body is located at the inner wall position of the installation arc plate.

[0009] Preferably, an outer ring layer made of a material easy to generate static electricity is arranged on the outer periphery of the magnetic seed ball body, a plurality of impurity storage grooves are arranged on the outer periphery of the outer ring layer, the outer ring layers are arranged in a close array, a plurality of annular arrays of engagement hemispheres are integrally formed on the outer periphery of the outer ring layer, and the engagement hemispheres between the outer ring layers are in contact with each other.

[0010] Preferably, a friction generating piece is arranged between the outer peripheries of the plurality of magnetic seed ball bodies, the friction generating piece comprises an extension rod fixed with the bottom end of the driving rod, an outer connecting sleeve is fixed on the outer periphery of the extension rod, a plurality of driving plates are connected with the outer periphery of the outer connecting sleeve, one end of the driving plate is provided as an arc driving surface, the arc driving surface is in close contact with the outer periphery of the outer ring layer and has a thickness smaller than the gap between adjacent two engagement hemispheres.

[0011] Preferably, a funnel partition plate is arranged on the inner periphery of the impurity storage frame, a plurality of flocculation removal rollers are arranged between the impurity storage frame and the inner cone top plate, the flocculation removal roller comprises a main cylinder body fixed to the inner side wall of the outer cone top plate, the main cylinder body is composed of a cylinder frame and a plurality of curved scraping pieces, the curved scraping pieces correspond to the positions of the magnetic seed ball bodies and are in recessed curved surfaces in contact with the engagement hemispheres, and the bottom end of the cylinder frame is communicated with a guide discharge pipe passing through the funnel partition plate.

[0012] Preferably, a plurality of impurity scraping pieces are arranged on the outer periphery of the main cylinder body, the impurity scraping piece comprises a soft gel body, the soft gel body is bonded with the outer arc side of the curved scraping piece, a sliding groove is arranged on the soft gel body, a sliding body is slidably arranged in the sliding groove, and a convex ball scraper is connected with the sliding body.

[0013] Preferably, a twisting and feeding piece is arranged on the inner periphery of the main cylinder body, the twisting and feeding piece comprises a central shaft, a vortex blade is connected with the outer periphery of the central shaft, and a side baffle is integrally formed on the edge of the vortex blade and faces the rotation direction.

[0014] Preferably, a linkage structure is arranged between the plurality of main cylinder top parts, the linkage structure comprising a rotating rod connected with the bottom end of the extension rod, an annular gear connected with the outer periphery of the rotating rod, an engagement bevel gear engaged with the outer periphery of the annular gear, and the center of the engagement bevel gear is fixed with the outer periphery of the central shaft.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1、The present application uses magnetic seed spheres for flocculation and adsorption, replacing the traditional sedimentation method, significantly improving the treatment efficiency of micro solid particle impurities, and the magnetic seed spheres continuously adsorb micro particles during the flow of sewage through various mechanisms such as surface adsorption, bridging effect and adsorption layer capture, without the need for long waiting time for sedimentation, this design not only saves a lot of processing time, but also reduces the equipment floor area, at the same time, the magnetic seed spheres can be reused, reducing the operating cost, especially suitable for rural areas with limited economic conditions, which can not only meet the sewage treatment demand, but also control the cost investment, solving the problem of poor efficiency of traditional sedimentation method for treating rural domestic sewage.

[0017] 2、The present application also generates static electricity by the friction between the outer circle layers of the magnetic seed spheres through the friction generating piece, effectively enhancing the adsorption capacity of the particle impurities, the outer circle layer is made of polytetrafluoroethylene material and has a special occlusion half-sphere structure, which generates static electricity during friction and makes the impurity storage groove in a flexible rolling state, uniformly adsorbing particle impurities and avoiding local adsorption saturation to affect the overall treatment effect, this design further improves the capture rate of micro particles and improves the water quality purification effect, ensuring that the impurities in the sewage are more thoroughly removed, further solving the problem of poor efficiency of traditional sedimentation method for treating rural domestic sewage.

[0018] 3、The present application also realizes efficient cleaning of the plankton in rural domestic sewage through the cooperation of the unique stirring structure and the plankton cleaning structure, the deceleration motor drives the stirring blade to rotate, generating a wave flow moving to the side, cooperating with the design of the bottom inclined surface and the scraper plate to prevent impurities from adhering to the bottom of the pool and guide them to move to the outer edge, at the same time, the spiral structure of the spiral ring plate drives the plankton to rotate and concentrate in the plankton cleaning area, effectively isolating larger agricultural impurities and other plankton, avoiding their mixing into the subsequent treatment link, providing a good foundation for the further treatment of sewage, reducing the damage to the subsequent equipment, and prolonging the service life of the equipment.

[0019] 4、The application also corresponds to the arc scraping of the flocculation removal cylinder and the magnetic seed ball position, and is attached, when the central shaft drives the cylinder frame to rotate, the particles adsorbed on the surface of the magnetic seed ball can be accurately removed, this design avoids the influence of impurity accumulation on the adsorption performance of the magnetic seed ball, ensures that the magnetic seed ball always maintains high adsorption capacity, at the same time, the eddy current generated by the vortex blade quickly transports the removed impurities to the below of the funnel partition, prevents the impurities from being mixed into the sewage and being adsorbed again, effectively improves the efficiency and quality of impurity treatment, and guarantees the continuous and stable operation of the equipment.

[0020] 5、The application also has good adaptability through the soft gel and sliding body design of the impurity scraping part, when the cylinder frame rotates, the convex ball scraper can freely roll according to the position of the occlusion hemisphere, and effectively removes the particle impurities in the gap between the two occlusion hemispheres, this fine cleaning for the gap of complex structure makes up for the shortcomings of the traditional cleaning method, further improves the thoroughness of impurity removal, ensures the efficient treatment capacity of the equipment for small particles in sewage, and improves the overall purification effect.

[0021] 6、The equipment of the application adopts a reduction motor connected in sequence through a driving rod, an extension rod, a central shaft and the like, realizes the continuous driving of multiple components such as the stirring structure, the plankton cleaning structure, the friction generating part and the flocculation removal cylinder, this multi-stage driving design of a single power source avoids the increase of energy consumption and the improvement of equipment complexity caused by using multiple motors, reduces the procurement cost and operation energy consumption of the equipment, at the same time, the simplified transmission structure reduces the probability of failure, improves the reliability and maintenance convenience of the equipment, and is more suitable for the use environment and technical maintenance level of rural areas. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the application.

[0023] Figure 2 It is a cooperation structure schematic diagram of the stirring structure and the plankton cleaning structure in the application.

[0024] Figure 3 It is a structural schematic diagram of a half-penetrated sewage pool in the application.

[0025] Figure 4 It is a separation structure schematic diagram of the flocculation attraction structure in the application.

[0026] Figure 5 It is a cooperation structure schematic diagram among the flocculation attraction structure, the impurity storage frame and the flocculation removal cylinder in the application.

[0027] Figure 6 It is a structural schematic diagram of the friction generating part in the application.

[0028] Figure 7 It is a structural schematic diagram of the magnetic seed ball part in the application.

[0029] Figure 8 Fig. 1 is a schematic diagram of the connection structure of the linkage structure and the flocculation-removing roller in the present application.

[0030] Figure 9 Fig. 2 is a position arrangement diagram of the scrap removing member and the twisting and feeding member in the present application.

[0031] Figure 10 Fig. 3 is a structural schematic diagram of the twisting and feeding member in the present application.

[0032] Figure 11 Fig. 4 is a structural schematic diagram of the scrap removing member in the present application.

[0033] Figure caption:

[0034] 1, sewage pool; 2, walkway platform; 3, speed reducer motor; 4, driving rod; 5, stirring structure; 6, floating cleaning structure; 7, communication pipe; 8, flocculation suction structure; 9, scrap storage frame; 10, ultrafiltration layer; 11, friction generating member; 12, flocculation-removing roller; 13, scrap removing member; 14, twisting and feeding member; 15, linkage structure; 18, funnel partition plate;

[0035] 501, stirring blade; 502, connecting frame; 503, bottom scraping plate; 601, fixed plate; 602, spiral coil plate; 801, outer cone top plate; 802, inner cone top plate; 803, installation arc plate; 804, magnetic seed sphere; 805, outer ring layer; 806, occlusion hemisphere; 111, extension rod; 112, outer connecting sleeve; 113, driving plate; 114, arc driving surface; 121, main cylinder body; 1211, cylinder frame; 1212, curved arc scraping; 122, guide discharge pipe; 131, soft gel body; 132, sliding groove; 133, sliding body; 134, convex ball scraping; 141, central shaft; 142, vortex blade; 143, side baffle; 151, rotating rod; 152, ring gear; 153, meshing helical gear. DETAILED DESCRIPTION

[0036] As Figures 1 to 11As shown, the present application relates to a rural domestic sewage treatment equipment, including sewage pool 1, sewage pool 1 top is provided with conveying pipeline, sewage pool 1 outer edge is set to plankton cleaning area, plankton cleaning area is composed of a ring body and sewage pool 1 side enclose, sewage pool 1 top is provided with walkway platform 2, walkway platform 2 center is installed with speed reducer 3, the driving end of speed reducer 3 penetrates sewage pool 1 and is connected with driving rod 4, in order to clean plankton, avoid larger agricultural impurities mix, driving rod 4 outer periphery is provided with stirring structure 5, stirring structure 5 includes multiple stirring blades 501, stirring blade 501 below is equipped with the connecting frame 502 fixed with driving rod 4, connecting frame 502 is connected with scraping plate 503, and the bottom of scraping plate 503 is in contact with the bottom wall of sewage pool 1, so that it generates the wave flow moving to the outer edge in the process of rotating, the bottom of sewage pool 1 is designed as an inclined surface, and the rotation of scraping plate 503 avoids the adhesion of impurities on the bottom wall, the upper half of driving rod 4 outer periphery is connected with plankton cleaning structure 6, plankton cleaning structure 6 includes fixed plate 601 and spiral coil plate 602, fixed plate 601 is fixed with driving rod 4, the bottom of fixed plate 601 is connected with the top of spiral coil plate 602, the upper half of spiral coil plate 602 is higher than the horizontal plane, and spiral coil plate 602 is a spiral structure, and the height of stirring blade 501 is lower than spiral coil plate 602 and is immersed underwater.

[0037] Working principle: through the operation of speed reducer 3, driving rod 4 is rotated, stirring blade 501 is rotated, and wave flow moving to the side is generated, and the spiral structure of spiral coil plate 602 is rotated, which can drive plankton to rotate, so that spiral coil plate 602 drives plankton to move to the edge, so as to isolate plankton.

[0038] In order to quickly flocculate and collect the small solid particle impurities, a communication pipe 7 is arranged below the driving rod 4 and is communicated with the outlet of the sewage pool 1, and a flocculation suction structure 8 is communicated with the communication pipe 7, the flocculation suction structure 8 comprises an outer conical top plate 801, an inner conical top plate 802 and a flocculation channel between the outer conical top plate 801 and the inner conical top plate 802, the flocculation channel is an inverted V-shaped gap, a plurality of magnetic seed spheres 804 (such as Fe3O4@SiO2 composite spheres) or magnetic carbon materials (magnetic activated carbon) are arranged in the flocculation channel, the plurality of magnetic seed spheres 804 are arrayed and have magnetism, the outer conical top plate 801 and the inner conical top plate 802 are conical structures, the flocculation channel is between the adjacent sides of the outer conical top plate 801 and the inner conical top plate 802, a plurality of recessed ball grooves are arranged between the outer conical top plate 801 and the inner conical top plate 802, an installation arc plate 803 is arranged on the inner circumferential surface of the recessed ball groove of the inner conical top plate 802, the magnetic seed spheres 804 are arranged at the inner circumferential position of the installation arc plate 803, in order to facilitate installation and maintenance, the outer conical top plate 801 can be divided into a plurality of parts and assembled, and during maintenance and installation, the parts can be disassembled and assembled gradually according to the situation, the installation arc plate 803 plays a role of fixing the magnetic seed spheres 804, and a storage frame 9 is arranged at the bottom of the flocculation suction structure 8, the storage frame 9 is connected with the bottom of the inner conical top plate 802, and an ultrafiltration layer 10 is arranged at the bottom of the flocculation channel and the storage frame 9.

[0039] The principle of flocculation impurities generated by the adsorption of solid particles on the magnetic seed spheres 804 is as follows.

[0040] Surface adsorption: there are various functional groups on the surface of the magnetic seed spheres 804, such as hydroxyl, carboxyl, amino and the like, these functional groups can realize adsorption with corresponding groups on the surface of non-magnetic solid particles through electrostatic attraction, hydrogen bond, van der Waals force and the like, for example, when the magnetic seed spheres 804 are positively charged and the non-magnetic solid particles in the sewage are negatively charged, they will be combined together due to electrostatic attraction.

[0041] Bridge effect: the high molecular polymers or biological macromolecules on the surface of the magnetic seed spheres 804 can act as a bridge agent to connect multiple non-magnetic solid particles, for example, some magnetic seed spheres 804 are modified with high molecular substances such as chitosan, and there are many active sites on the chitosan molecular chain, which can simultaneously combine with multiple non-magnetic solid particles, thereby realizing adsorption of them.

[0042] Capture effect of the adsorption layer: in the process of adsorbing non-magnetic solid particles by the magnetic seed spheres 804, the particles first adsorbed on the surface of the magnetic seed spheres 804 will form an adsorption layer, and this adsorption layer can further capture other non-magnetic solid particles around, so that more particles are adsorbed on the magnetic seed spheres 804.

[0043] Working principle: when the float cleaning is completed, the sewage is input into the flocculation channel through the communication pipe 7, and the particulate impurities in the sewage will be adsorbed on the recessed ball groove on the outer periphery of the magnetic seed ball 804, so that the small solid particles are flocculated on the magnetic seed ball 804. The ultrafiltration layer 10 blocks a small amount of particles that have not been adsorbed, and cooperates with the sewage input to make the particles float in the flocculation channel and be gradually adsorbed.

[0044] Thus, the adsorption of multiple array magnetic seed balls 804 replaces sedimentation, so that the small solid particulate impurities can be continuously and gradually adsorbed during input, without the need to wait for sedimentation time, the treatment efficiency is improved, and the magnetic seed balls 804 can be repeatedly used, with high practical value and economic benefit, suitable for rural domestic sewage with limited cost.

[0045] In order to realize the effect of strengthening the adsorption of small solid particulate impurities, the outer periphery of the magnetic seed ball 804 is provided with an outer ring layer 805 made of a material that is easy to generate static electricity, a plurality of impurity storage grooves are formed on the outer periphery of the outer ring layer 805, the plurality of outer ring layers 805 are arrayed in close contact with each other, the outer ring layer 805 is made of polytetrafluoroethylene material, a plurality of annular array engagement hemispheres 806 are integrally formed on the outer periphery of the outer ring layer 805, the engagement hemispheres 806 between the plurality of outer ring layers 805 are in contact with each other, and a friction generating piece 11 is arranged between the outer peripheries of the plurality of magnetic seed balls 804. The friction generating piece 11 includes a extension rod 111 fixed to the bottom end of the driving rod 4, an outer connecting sleeve 112 fixed to the outer periphery of the extension rod 111, a plurality of driving plates 113 connected to the outer periphery of the outer connecting sleeve 112, an arc driving surface 114 provided at one end of the driving plate 113, and the arc driving surface 114 is in close contact with the outer periphery of the outer ring layer 805 and has a thickness less than the gap between adjacent two engagement hemispheres 806.

[0046] Working principle: when the driving rod 4 rotates, the extension rod 111 rotates, the outer connecting sleeve 112 rotates, and the driving plate 113 rotates. Due to the design that the arc driving surface 114 is in close contact with the outer periphery of the outer ring layer 805, the arc driving surface 114 will successively drive the engagement hemispheres 806 to rotate during rotation. Due to the mutual engagement of the engagement hemispheres 806, the plurality of engagement hemispheres 806 can be rubbed and freely rolled, so that static electricity is generated. The effect of static electricity can strengthen the adsorption of particulate impurities. At the same time, the rolling of the outer ring layer 805 makes the impurity storage grooves in a flexible rolling state, which can uniformly adsorb particulate impurities and avoid that one side of the impurity storage groove is full of adsorbed particulate impurities while the other side is not utilized.

[0047] In order to scrape and collect the flocculated particle impurities, the lower half of the impurity storage box 9 is provided with a valve pipe for discharging impurities, the inner wall of the impurity storage box 9 is provided with a funnel partition plate 18, and the impurity storage box 9 and the inner cone top plate 802 are provided with a plurality of flocculation removal rollers 12. The flocculation removal roller 12 includes a main cylinder body 121 fixed to the inner side wall of the outer cone top plate 801. The main cylinder body 121 is composed of a cylinder frame 1211 and a plurality of arc scrapers 1212. The arc scrapers 1212 correspond to the positions of the magnetic seed spheres 804 and are recessed curved surfaces in contact with the engagement hemispheres 806. The bottom end of the cylinder frame 1211 is connected to a guide discharge pipe 122 that passes through the funnel partition plate 18. The inner wall of the main cylinder body 121 is provided with a twisting member 14. The twisting member 14 includes a central shaft 141 connected to the cylinder frame 1211. The outer wall of the central shaft 141 is connected to a vortex blade 142. The edge of the vortex blade 142 is integrally formed with a side baffle 143 in the direction of rotation.

[0048] Working principle: when the central shaft 141 rotates, the cylinder frame 1211 rotates. Due to the corresponding design of the arc scrapers 1212 and the magnetic seed spheres 804, the arc scrapers 1212 can remove the particle impurities that have been collected to a certain extent. The removed particle impurities will first fall into the cylinder frame 1211. In cooperation with the rotation of the vortex blade 142 driven by the central shaft 141, the vortex force can be generated to further move the particle impurities along the length direction of the cylinder frame 1211 and fall into the guide discharge pipe 122, and then be transported to the lower side of the funnel partition plate 18 to further avoid the floating of impurities in the upper half and the re-adsorption of impurities. A small amount of impurities will be settled by gravity and gradually fall to the lower half. In this way, the flocculated particle impurities are removed and collected at the same time, further achieving the effect of recycling.

[0049] The outer wall of the main cylinder body 121 is provided with a plurality of impurity scraping members 13. The impurity scraping member 13 includes a soft body 131 bonded to the outer arc side of the arc scraper 1212. The soft body 131 is provided with a sliding groove 132. A sliding body 133 is slidably arranged in the sliding groove 132. The sliding body 133 is connected to a convex ball scraper 134. The gap between the two engagement hemispheres 806 is adapted to the convex ball scraper 134.

[0050] Working principle: since the soft body 131 is made of soft material, it will be deformed under pressure. In cooperation with the sliding design of the sliding body 133 in the sliding groove 132, when the cylinder frame 1211 and the arc scraper 1212 rotate, the convex ball scraper 134 will freely roll according to the position of the engagement hemisphere 806, so that the convex ball scraper 134 can remove the particle impurities in the gap between the two engagement hemispheres 806, further improving the adaptability and the effect of removing particle impurities.

[0051] In order to realize the driving, the linkage structure 15 is arranged between the top of the plurality of main cylinders 121, the linkage structure 15 comprises the rotating rod 151 connected with the bottom end of the extension rod 111, the rotating rod 151 is connected with the ring gear 152 in the outer periphery, the ring gear 152 is engaged with the meshing helical gear 153 in the outer periphery, and the meshing helical gear 153 is fixed with the outer periphery of the center shaft 141.

[0052] Therefore, through the connection of the driving rod 4, the extension rod 111 and the center shaft 141 in sequence, the continuous driving can be realized through one motor.

[0053] The embodiment of the application discloses the preferred embodiment, but is not limited to this, the ordinary skilled in the art, easily understands the spirit of the application according to the above embodiment, and makes different inferences and changes, but as long as not departing from the spirit of the application, all are within the protection scope of the application.

Claims

1. A rural domestic wastewater treatment apparatus, characterized by, Including sewage pool, sewage pool outer edge is provided with the floating matter cleaning area, the walkway platform is arranged on the sewage pool top, the walkway platform center is installed with the speed reducer, the speed reducer drive end penetrates sewage pool and is connected with the drive rod, the drive rod outer periphery is provided with the agitating structure; The outer periphery of the drive rod is connected with the floating cleaning structure in the upper half, the floating cleaning structure includes a spiral coil plate, the spiral coil plate is a spiral structure, a communication pipe is arranged below the drive rod and communicated with the liquid outlet of the sewage pool, the communication pipe is communicated with a flocculation suction structure, the flocculation suction structure includes a flocculation channel with an inverted V-shaped gap, a plurality of magnetic seed spheres are arranged in the flocculation channel, the magnetic seed spheres are arrayed and have magnetism, a miscellaneous storage frame is arranged at the bottom of the flocculation suction structure, and an ultrafiltration layer is arranged at the bottom of the flocculation channel and the flocculation suction structure. The flocculation suction structure includes an outer cone top plate and an inner cone top plate, the outer cone top plate and the inner cone top plate are conical structures, the flocculation channel is located between the adjacent side of the outer cone top plate and the inner cone top plate, a plurality of recessed ball grooves are arranged between the outer cone top plate and the inner cone top plate, an installation arc plate is installed in the inner periphery of the recessed ball groove of the inner cone top plate, and the magnetic seed spheres are located in the inner periphery of the installation arc plate. An outer ring layer made of a material easy to generate static electricity is arranged on the outer periphery of the magnetic seed sphere, a plurality of miscellaneous storage grooves are arranged on the outer periphery of the outer ring layer, the outer ring layers are arrayed and closely arranged, a plurality of annular arrayed engagement hemispheres are integrally formed on the outer periphery of the outer ring layer, and the engagement hemispheres of the outer ring layers are in contact with each other. A funnel partition plate is arranged in the inner periphery of the miscellaneous storage frame, a plurality of flocculation removal rollers are arranged between the miscellaneous storage frame and the inner cone top plate, the flocculation removal roller includes a main cylinder body fixed to the inner side wall of the outer cone top plate, the main cylinder body is composed of a cylinder frame and a plurality of curved scraping groups, the curved scraping groups correspond to the positions of the magnetic seed spheres and are recessed curved surfaces in contact with the engagement hemispheres, and the cylinder frame is communicated with a guide discharge pipe penetrating through the funnel partition plate. A plurality of miscellaneous scraping groups are arranged on the outer periphery of the main cylinder body, the miscellaneous scraping group includes a soft body, the soft body is bonded to the outer arc side of the curved scraping group, a sliding groove is arranged in the soft body, a sliding body is slidably arranged in the sliding groove, and a convex ball scraper is connected to the sliding body. A plurality of miscellaneous scraping groups are arranged on the outer periphery of the main cylinder body, the miscellaneous scraping group includes a soft body, the soft body is bonded to the outer arc side of the curved scraping group, a sliding groove is arranged in the soft body, a sliding body is slidably arranged in the sliding groove, and a convex ball scraper is connected to the sliding body.

2. The rural domestic sewage treatment device according to claim 1, characterized in that, The main cylinder body is provided with a twisting and feeding member in the inner periphery, the twisting and feeding member includes a central shaft, a vortex blade is connected to the outer periphery of the central shaft, and a side baffle is integrally formed on the edge of the vortex blade in the rotation direction.

3. The rural domestic sewage treatment device according to claim 1, characterized in that, The agitating structure includes a plurality of stirring leaves, the height of the stirring leaf is lower than that of the spiral coil plate and is submerged under water, a connecting frame is arranged below the stirring leaf and fixed to the drive rod, and the connecting frame is connected with a bottom scraping plate. The floating cleaning structure includes a fixed plate, the fixed plate is fixed to the drive rod, the bottom of the fixed plate is connected with the top of the spiral coil plate, and the upper half of the spiral coil plate is higher than the horizontal plane.

4. The rural domestic sewage treatment device according to claim 3, characterized in that, A plurality of said main cylinder top is provided with linkage structure, the linkage structure includes with the extension bar bottom end connection's rotating rod, the rotating rod outer periphery is connected with ring gear, the ring gear outer periphery is engaged with engagement helical gear, the engagement helical gear center with the center shaft outer periphery is fixed.

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