CN111453938A

CN111453938A - Integrated rural domestic sewage treatment equipment

Info

Publication number: CN111453938A
Application number: CN202010384691.5A
Authority: CN
Inventors: 李伟; 原众雄
Original assignee: China Korea Duke Pump Industry Zhejiang Co ltd
Current assignee: China Korea Duke Pump Industry Zhejiang Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-07-28

Abstract

The invention discloses integrated rural domestic sewage treatment equipment, which comprises a ground pool, a buried pool and a sedimentation discharge pool, wherein the ground pool comprises a water storage pool, a filtering installation device and a rotary stirring device; the device meets the current situation of rural development, can treat and discharge domestic sewage, can properly concentrate the domestic sewage to the device by utilizing the existing drain pipe for discharging, does not need to lay a drain pipe network again in a large scale, saves the operating cost, is simple to operate, does not need a specially-assigned person to stare and watch the treatment, and saves the labor cost.

Description

Integrated rural domestic sewage treatment equipment

Technical Field

The invention belongs to the technical field of water treatment, and particularly relates to integrated rural domestic sewage treatment equipment.

Background

With the continuous development of rural economy and the continuous improvement of the requirements of people on the quality of living environment, the new rural construction promoted by levels of governments greatly improves the living environment of farmers, but the contradiction between the relative lag of the infrastructure construction in rural areas and the scattered point source water pollution in rural areas is increasingly prominent, and the problem of rural water environment pollution is urgently solved.

Because rural economic strength is lower than the city, the existing urban sewage treatment equipment has high construction cost, large operation investment in manpower and material resources, and higher later maintenance cost, and is not suitable for the current situation in rural areas.

Disclosure of Invention

The invention aims to provide a technical scheme of integrated rural domestic sewage treatment equipment aiming at the defects in the prior art, the integrated rural domestic sewage treatment equipment is low in development investment and small in occupied area, meets the current development situation of rural areas, can treat domestic sewage and then discharge the treated sewage, can properly concentrate the treated sewage to the equipment by utilizing the existing drainage pipe to discharge the treated sewage, does not need to lay a drainage pipe network again in a large scale, saves operating cost, is simple to operate, does not need specially-assigned people to stare and watch the treatment, and saves labor cost.

In order to solve the technical problems, the invention adopts the following technical scheme:

an integrated rural domestic sewage treatment equipment is characterized in that: the underground water-saving sewage treatment device comprises a ground pool, an underground pool and a sedimentation discharge pool, wherein the ground pool is installed on the ground, the underground pool is embedded under the ground, the ground pool comprises a water storage tank, a filtering installation device and a rotary stirring device, the water storage tank is of a cover-free structure, the filtering installation device comprises a filtering structure and an installation structure, the installation structure comprises a fixed plate and water inlet pipe installation positions, two ends of the fixed plate are fixed on the water storage tank, a plurality of water inlet pipe installation positions are arranged on the fixed plate, each water inlet pipe installation position comprises an installation platform, a pipe kit and a splash baffle, a water inlet pipe is installed on the pipe kit, the pipe kit is installed on the installation platform, the splash baffle is installed on one side of the installation platform, the filtering structure is installed on the inner side wall of the water storage tank, the filtering structure is positioned below the water inlet, the rotary stirring device comprises a rotator and a surrounding baffle groove, the rotator is arranged in the surrounding baffle groove, cobblestones are filled in a reservoir, the reservoir is communicated with the inside of a buried pool through a flow guide device, the buried pool comprises a closed pool body and combined filler, the combined filler is filled in the closed pool body, the sedimentation discharge pool comprises a sedimentation pool body and an automatic medicine feeding device, a cover plate is arranged at the top of the sedimentation pool body, and the automatic medicine feeding device is arranged on the cover plate; the drainage pipes of various rural streets or groups are connected into the water inlet pipes and fixed on the water inlet pipe mounting positions, due to the dispersion of rural living areas, the water inlet pipe mounting positions arranged in the device are suitable for the connection of the water inlet pipes in multiple directions, the workload of laying a main pipe can be reduced, the laying cost is reduced, domestic sewage is injected into the reservoir through the water inlet pipes, the filtering structure can intercept solid impurities in the domestic sewage to play a role of primary filtering, a layer of biomembrane can be formed on the surface of cobblestone arranged in the reservoir, the biomembrane can obtain oxygen required by growth under the action of the rotary stirring device, the removal effect on soluble and colloidal organic pollutants in the sewage in the reservoir is achieved, the sewage treated by the reservoir enters the buried pool, due to the fact that the bottom of the buried pool is in an anaerobic environment, part of organic matters which are difficult to degrade in the sewage can be removed under the action of anaerobic bacteria, then sewage flows upwards to the oxygen-deficient environment on the upper part of the underground pond, denitrifying bacteria can denitrify and denitrify organic matters in the sewage, the underground pond adopts a mode of water inlet from the lower part and water outlet from the top, the sewage after denitrification and dephosphorization in the underground pond enters a sedimentation discharge pond, a flocculating agent is injected into the sedimentation pond body through an automatic dosing device, particles which are difficult to separate in the sewage can be polymerized and settled, the oil removal and suspended matter removal effects are good, the effluent can reach the discharge standard, and as the liquid flow between the underground pond and the sedimentation discharge pond adopts gravity flow, no additional lifting device is needed, and the operation cost can be saved.

Furthermore, the filtering structure comprises a baffle plate and a filtering plate, the shape of the filtering plate is matched with that of the inner wall of the reservoir, the filtering plate is fixedly connected with the inner wall of the reservoir, and the baffle plate is vertically arranged on the filtering plate; the filter can hold back the solid impurity in the sewage, and the baffle can prevent that the solid impurity on the filter is rushed into in the cistern of below under the impact of rivers.

Furthermore, the cistern includes column main part and play weir, and one side of column cell body is provided with the open end, and the open end is connected with a play weir, and the bottom of a play weir is connected on burying the pond with ground, and a play weir is formed by weir plate and connecting plate connection, and the both sides at the open end are installed to the connecting plate, and the both ends of weir plate respectively with connecting plate fixed connection.

When the discharge amount of sewage exceeds the treatment capacity of the reservoir, the sewage directly enters the underground pond through the overflow port, and the sewage can be prevented from escaping from the reservoir and polluting the earth surface.

Further, the rotator comprises a first motor, a lifter and a radial brush rod assembly, the lifter is installed at the bottom of the surrounding baffle groove, the first motor is fixedly installed on the lifter, and the radial brush rod assembly is installed on a motor shaft of the first motor; through first motor drive, radial brush-holder stud subassembly can rotate and drive the liquid fluctuation in the retaining pond, can increase the oxygen content in the cistern at this in-process, provides the oxygen of the capacity for the activity of the biomembrane on cobblestone surface, can realize the up-and-down motion of radial brush-holder stud subassembly through the riser, makes its stirring to liquid in the cistern more even.

Further, radial brush-holder stud subassembly includes loop bar and brush-holder stud, and the loop bar cover is established in the motor shaft outside of first motor and with motor shaft fixed connection, and the brush-holder stud is provided with a plurality ofly, and the side at the loop bar is installed to the brush-holder stud to crisscross setting from top to bottom between a plurality of brush-holder studs, be provided with a plurality of brush boards on the brush-holder stud.

Further, the flow guiding device comprises a flow guiding channel, a channel gate and a flow guiding pipe, wherein one end of the flow guiding channel is connected to the weir plate, the other end of the flow guiding channel is fixedly provided with a blocking plate, one end of the flow guiding pipe is fixed on the blocking plate, the other end of the flow guiding pipe is bent downwards and extends to the bottom of the combined filler, the channel gate is arranged in the middle of the flow guiding channel, and the channel gate is driven by a second motor; the guiding device can bury the pond with the liquid water conservancy diversion in the cistern to ground in, and the water conservancy diversion volume and the switching degree of water conservancy diversion canal can be adjusted to the channel gate to can guarantee that sewage dwells enough time in the cistern in order to be handled.

Further, the combined filler at least comprises three fillers with different particle sizes, and the fillers are distributed in a descending order according to the size from top to bottom; the underground pond adopts a mode of water inlet at the lower part and water outlet at the top part, and impurities in the sewage are intercepted in the combined filler through the layer-by-layer filtering effect of the combined filler.

Further, the automatic dosing device comprises a solution tank, a control cabinet and a dosing pipe, the solution tank and the control cabinet are arranged on the cover plate in parallel, the upper end of the dosing pipe is connected to the inside of the solution tank, and the bottom of the dosing pipe penetrates through the cover plate and extends into the sedimentation tank body; the time and the total amount of going out of medicine of switch board control dosing pipe contain instruments such as mixer in the solution case, can be with medicine misce bene.

Furthermore, the sedimentation discharge tank also comprises a cleaning structure and a flushing structure, the cleaning structure comprises a pushing cylinder and a mud scraper, the pushing cylinder is arranged at the bottom of the sedimentation tank body, the mud scraper is arranged on the pushing cylinder, the bottom of the mud scraper is contacted with the bottom of the sedimentation tank body, the flushing structure comprises a drain pipe, a suction pump and a clean water pipe, one end of the clean water pipe is connected to the municipal pipe network, the other end of the clean water pipe extends into the sedimentation tank body, the suction pump is arranged on the drain pipe, one end of the drain pipe extends into the bottom of the sedimentation tank body, and the other end of the drain pipe is connected to the reservoir; the clearance structure can be washd the precipitate in the sedimentation discharge tank with washing the structure, close the outlet pipe of sedimentation tank body and bury the connecting pipe between the pond with ground, pour into a large amount of clear water into sedimentation tank body inside through the clear water pipe, thereby promote cylinder work simultaneously and make the mud scraping plate will deposit and promote the mixture that makes precipitate and water under the effect of suction pump through the blow off pipe and pour into the cistern into to the realization is to the cleanness of sedimentation discharge tank.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the invention has low development investment and small occupied area, accords with the current development situation of rural areas, can treat and discharge domestic sewage, can properly concentrate the domestic sewage to the equipment by utilizing the existing drain pipe for discharging, does not need to lay a drain pipe network again in a large scale, saves the operating cost, is simple to operate, does not need a specially-assigned person to stare and watch the treatment, and saves the labor cost.

The invention relates to a device for removing organic pollutants, which is characterized in that drain pipes of various streets or groups in rural areas are connected with water inlet pipes and fixed on water inlet pipe mounting positions, as rural living areas are dispersed, a plurality of water inlet pipe mounting positions arranged in the device are suitable for the connection of the water inlet pipes in a plurality of directions, the workload of laying a header pipe can be reduced, the laying cost is reduced, domestic sewage is injected into a reservoir through the water inlet pipes, a filtering structure can intercept solid impurities in the domestic sewage to play a role of primary filtering, a layer of biomembrane is formed on the surface of cobblestone arranged in the reservoir, the biomembrane can obtain oxygen required by growth under the action of a rotary stirring device, and plays a role of removing soluble and colloidal organic pollutants in the sewage in the reservoir, the sewage treated by the reservoir enters a buried pool, as the bottom of the buried pool is an anaerobic environment, and part of refractory organic matters in the sewage are removed under the, then sewage flows upwards to the oxygen-deficient environment on the upper part of the underground pond, denitrifying bacteria can denitrify and denitrify organic matters in the sewage, the underground pond adopts a mode of water inlet from the lower part and water outlet from the top, the sewage after denitrification and dephosphorization in the underground pond enters a sedimentation discharge pond, a flocculating agent is injected into the sedimentation pond body through an automatic dosing device, particles which are difficult to separate in the sewage can be polymerized and settled, the oil removal and suspended matter removal effects are good, the effluent can reach the discharge standard, and as the liquid flow between the underground pond and the sedimentation discharge pond adopts gravity flow, no additional lifting device is needed, and the operation cost can be saved.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of an integrated rural domestic sewage treatment device according to the present invention;

FIG. 2 is a schematic structural view of a ground pool according to the present invention;

FIG. 3 is a schematic view of a rotator according to the present invention;

FIG. 4 is a schematic structural view of the underground pond of the present invention;

FIG. 5 is a schematic structural view of a cleaning structure according to the present invention;

FIG. 6 is a schematic view of the structure of the filter structure of the present invention.

The device comprises a ground pool 1, a buried pool 2, a sedimentation discharge pool 3, a sedimentation discharge pool 4, a water reservoir 5, a clean water pipe 6, a rotary stirring device 7, a filtering structure 8, a mounting structure 9, a fixing plate 10, a water inlet pipe mounting position 11, a mounting platform 11, a pipe kit 12, a splash baffle 13, a water inlet pipe 14, a rotator 15, a confining groove 16, a suction pump 17, a closed tank 18, a combined filler 19, a sedimentation tank 20, an automatic dosing device 21, a cover plate 22, a baffle 23, a filter plate 24, a columnar main body 25, a water outlet weir 26, an open end 27, a weir plate 28, a connecting plate 29, a water outlet 30, an overflow port 31, a flow guide device 32, a flow guide pipe 33-L, a first motor 34, a lifter 35, a brush rod assembly 36, a sleeve rod 37, a brush rod 38, a brush rod 39, a flow guide plate 40, a channel 41-42-44, a flow guide pipe 43-44, a first motor, a lifting device 35-a lifting device 36-a radial brush rod assembly 37-sleeve rod, a radial flushing mechanism 50-47, a sludge pushing cylinder 50-47, a sludge pushing mechanism and a sludge pushing mechanism.

Detailed Description

As shown in fig. 1 to 6, an integrated rural domestic sewage treatment device of the present invention comprises a ground pool 1, a buried pool 2 and a sedimentation discharge pool 3, wherein the ground pool 1 is installed on the ground, the buried pool 2 is buried under the ground, the ground pool 1 comprises a water storage tank 4, a filtering installation device and a rotary stirring device 6, the water storage tank 4 is of a uncovered structure, the filtering installation device comprises a filtering structure 7 and an installation structure 8, the installation structure 8 comprises a fixing plate 9 and a water inlet pipe installation position 10, both ends of the fixing plate 9 are fixed on the water storage tank 4, the fixing plate 9 is provided with a plurality of water inlet pipe installation positions 10, the water inlet pipe installation positions 10 comprise an installation platform 11, a pipe kit 12 and a splash baffle 13, the pipe kit 12 is provided with a water inlet pipe 14, the pipe kit 12 is installed on the installation platform 11, the splash baffle 13 is installed on one side of the installation platform 11, the filtering structure 7 is, the filter structure 7 is positioned below the water inlet pipe installation position 10, the right lower side of the water storage tank 4 is fixedly installed at the top of the underground pond 2, the rotary stirring device 6 is installed in the middle of the water storage tank 4, the rotary stirring device 6 comprises a rotator 15 and a surrounding groove 16, the rotator 15 is installed in the surrounding groove 16, cobblestones are filled in the water storage tank 4, the water storage tank 4 is communicated with the inside of the underground pond 2 through a flow guide device 32, the underground pond 2 comprises a closed pond body 18 and a combined filler 19, the combined filler 19 is filled in the closed pond body 18, the sedimentation discharge pond 3 comprises a sedimentation pond body 20 and an automatic medicine feeding device 21, a cover plate 22 is arranged at the top of the sedimentation pond body 20, and the automatic medicine feeding device 21 is installed on the cover plate 22; the drainage pipes of various rural streets or groups are connected into the water inlet pipe 14 and fixed on the water inlet pipe mounting positions 10, due to the dispersion of rural living areas, the water inlet pipe mounting positions 10 arranged in the device are suitable for the connection of the water inlet pipes 14 in multiple directions, the workload of laying a header pipe can be reduced, the laying cost is reduced, domestic sewage is injected into the water storage tank 4 through the water inlet pipes 14, the filtering structure 7 can intercept solid impurities in the domestic sewage to play a role of primary filtering, a layer of biomembrane can be formed on the surface of cobblestone arranged in the water storage tank 4, the biomembrane can obtain oxygen required by growth under the action of the rotary stirring device 6, the removal effect on soluble and colloidal organic pollutants in the sewage in the water storage tank 4 is achieved, the sewage treated by the water storage tank 4 enters the underground tank 2, due to the anaerobic environment at the bottom of the underground tank 2, part of organic matters which are difficult to degrade in the sewage can be removed under the action, then sewage flows upwards to the anoxic environment on the upper part of the underground pond 2, denitrifying bacteria can denitrify and denitrify organic matters in the sewage, the underground pond 2 adopts a mode of water outlet from the water inlet top at the lower part, the sewage after denitrification and dephosphorization in the underground pond 2 enters the sedimentation discharge pond 3, a flocculating agent is injected into the sedimentation pond body 20 through the automatic medicine adding device 21, particles which are difficult to separate in the sewage can be polymerized and settled, the effects of removing oil and suspended matters are good, the effluent can reach the discharge standard, and because the liquid flow among the ground pond 1, the underground pond 2 and the sedimentation discharge pond 3 adopts gravity flow, no additional lifting device is needed, and the operation cost can be saved.

The filtering structure 7 comprises a baffle plate 23 and a filtering plate 24, the shape of the filtering plate 24 is matched with that of the inner wall of the water storage tank 4, the filtering plate 24 is fixedly connected with the inner wall of the water storage tank 4, and the baffle plate 23 is vertically arranged on the filtering plate 24; the filter plate 24 can intercept solid impurities in sewage, and the baffle 23 can prevent the solid impurities on the filter plate 24 from being flushed into the reservoir 4 below under the impact action of water flow.

The reservoir 4 comprises a columnar main body 25 and an effluent weir 26, wherein an open end 27 is arranged on one side of the columnar pool body, the open end 27 is connected with the effluent weir 26, the bottom of the effluent weir 26 is connected to the underground pool 2, the effluent weir 26 is formed by connecting a weir plate 28 and a connecting plate 29, the connecting plate 29 is arranged on two sides of the open end 27, and two ends of the weir plate 28 are fixedly connected with the connecting plate 29 respectively.

The lower part of the weir plate 28 is provided with a water outlet 30, the upper part of the weir plate 28 is provided with an overflow port 31, the water outlet 30 is provided with a filter screen, the outer side of the overflow port 31 is connected with an L-shaped guide pipe 33, the bottom of the L-shaped guide pipe 33 extends downwards to the bottom of the buried pond 2, and when the discharge amount of sewage exceeds the treatment capacity of the water storage pond 4, the sewage directly enters the buried pond 2 through the overflow port 31, so that the sewage can be prevented from escaping from the water storage pond 4 and polluting the earth surface.

The rotator 15 comprises a first motor 34, a lifter 35 and a radial brush rod assembly 36, wherein the lifter 35 is installed at the bottom of the baffle groove 16, the first motor 34 is fixedly installed on the lifter 35, and the radial brush rod assembly 36 is installed on a motor shaft of the first motor 34; driven by the first motor 34, the radial brush rod assembly 36 can rotate and drive liquid in the water storage tank 4 to fluctuate, so that the oxygen content in the water storage tank 4 can be increased in the process, sufficient oxygen is provided for the activity of a biological membrane on the surface of cobblestones, and the up-and-down movement of the radial brush rod assembly 36 can be realized through the lifter 35, so that the liquid in the water storage tank 4 is stirred more uniformly.

The radial brush rod assembly 36 comprises a sleeve rod 37 and a plurality of brush rods 38, the sleeve rod 37 is sleeved on the outer side of a motor shaft of the first motor 34 and fixedly connected with the motor shaft, the plurality of brush rods 38 are arranged, the brush rods 38 are arranged on the side surface of the sleeve rod 37, the plurality of brush rods 38 are arranged in a vertically staggered mode, and the plurality of brush plates 39 are arranged on the brush rods 38.

The flow guiding device 32 comprises a flow guiding channel 40, a channel gate 41 and a flow guiding pipe 42, wherein one end of the flow guiding channel 40 is connected to the weir plate 28, the other end of the flow guiding channel 40 is fixed with a blocking plate 43, one end of the flow guiding pipe 42 is fixed on the blocking plate 43, the other end of the flow guiding pipe 42 is bent downwards and extends to the bottom of the combined packing 19, the channel gate 41 is arranged in the middle of the flow guiding channel 40, and the channel gate 41 is driven by a second motor 44; the diversion device 32 can divert the liquid in the reservoir 4 to the underground tank 2, and the channel gate 41 can adjust the diversion amount and the opening and closing degree of the diversion channel 40, so that the sewage can be ensured to stay in the reservoir 4 for a sufficient time to be treated.

The combined filler 19 at least comprises three fillers with different particle sizes, and the fillers are distributed in a descending order according to the size from top to bottom; the underground pool 2 adopts a mode of water inlet at the lower part and water outlet at the top part, and impurities in the sewage are trapped in the combined filler 19 through the layer-by-layer filtering action of the combined filler 19.

The automatic medicine feeding device 21 comprises a solution tank 45, a control cabinet 46 and a medicine feeding pipe 47, the solution tank 45 and the control cabinet 46 are arranged on a cover plate 22 in parallel, the upper end of the medicine feeding pipe 47 is connected to the inside of the solution tank 45, and the bottom of the medicine feeding pipe 47 penetrates through the cover plate 22 and extends into the sedimentation tank body 20; the control cabinet 46 controls the dispensing time and the total amount of the dispensing tube 47, and the solution tank 45 contains instruments such as a stirrer, etc., so that the medicines can be uniformly mixed.

The sedimentation discharge tank 3 further comprises a cleaning structure 48 and a flushing structure 49, the cleaning structure 48 comprises a pushing cylinder 50 and a mud scraper 51, the pushing cylinder 50 is installed at the bottom of the sedimentation tank body 20, the mud scraper 51 is installed on the pushing cylinder 50, the bottom of the mud scraper 51 is in contact with the bottom of the sedimentation tank body 20, the flushing structure 49 comprises a sewage discharge pipe 52, a suction pump 17 and a clean water pipe 5, one end of the clean water pipe 5 is connected to a municipal pipe network, the other end of the clean water pipe 5 extends into the sedimentation tank body 20, the suction pump 17 is installed on the sewage discharge pipe 52, one end of the sewage discharge pipe 52 extends into the bottom of the sedimentation tank body 20, and the other end of the sewage discharge pipe 52 is connected to the water reservoir 4; the cleaning structure 48 and the flushing structure 49 can clean the sediments in the sedimentation discharge tank 3, close the outlet pipe of the sedimentation tank body 20 and the connecting pipe between the underground ponds 2, inject a large amount of clear water into the sedimentation tank body 20 through the clear water pipe 5, and simultaneously push the working of the air cylinder 50 to ensure that the mud scraper 51 pushes the sediments precipitated in the sedimentation tank body 20 so as to ensure that the mixture of the sediments and water is injected into the reservoir 4 through the sewage discharge pipe 52 under the action of the suction pump 17, thereby realizing the cleaning of the sedimentation discharge tank 3.

The invention relates to a water outlet pipe of each street or small group in rural areas, which is connected with a water inlet pipe 14 and fixed on a water inlet pipe mounting position 10, because of the dispersion of rural living areas, a plurality of water inlet pipe mounting positions 10 arranged in the device are suitable for the connection of water inlet pipes 14 in a plurality of directions, the workload of laying a header pipe can be reduced, the laying cost is reduced, domestic sewage is injected into a reservoir 4 through the water inlet pipes 14, a filtering structure 7 can intercept solid impurities in the domestic sewage to play a role of primary filtering, a layer of biomembrane can be formed on the surface of cobblestone arranged in the reservoir 4, the biomembrane can obtain oxygen required by growth under the action of a rotary stirring device 6, the soluble and colloidal organic pollutants in the sewage in the reservoir 4 can be removed, the sewage treated by the reservoir 4 enters a buried pond 2, because the bottom of the buried pond 2 is in an anaerobic environment, part of refractory organic matters in the sewage can be removed under the action of anaerobic bacteria, then sewage flows upwards to the anoxic environment on the upper part of the underground pond 2, denitrifying bacteria can denitrify and denitrify organic matters in the sewage, the underground pond 2 adopts a mode of water outlet from the water inlet top at the lower part, the sewage after denitrification and dephosphorization in the underground pond 2 enters the sedimentation discharge pond 3, a flocculating agent is injected into the sedimentation pond body 20 through the automatic medicine adding device 21, particles which are difficult to separate in the sewage can be polymerized and settled, the effects of removing oil and suspended matters are good, the effluent can reach the discharge standard, and because the liquid flow among the ground pond 1, the underground pond 2 and the sedimentation discharge pond 3 adopts gravity flow, no additional lifting device is needed, and the operation cost can be saved.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.

Claims

1. An integrated rural domestic sewage treatment equipment is characterized in that: the underground water-saving sewage treatment device comprises a ground pool, an underground pool and a sedimentation discharge pool, wherein the ground pool is installed on the ground, the underground pool is buried under the ground, the ground pool comprises a water storage tank, a filtering installation device and a rotary stirring device, the water storage tank is of a cover-free structure, the filtering installation device comprises a filtering structure and an installation structure, the installation structure comprises a fixed plate and a water inlet pipe installation position, two ends of the fixed plate are fixed on the water storage tank, the fixed plate is provided with a plurality of water inlet pipe installation positions, the water inlet pipe installation position comprises an installation platform, a pipe kit and a splash baffle, the pipe kit is provided with a water inlet pipe, the pipe kit is installed on the installation platform, the splash baffle is installed on one side of the installation platform, the filtering structure is installed on the inner side wall of the water storage tank, and the filtering structure is positioned below, the right side below fixed mounting of cistern is in bury the top in pond, rotatory agitating unit installs the middle part of cistern, rotatory agitating unit includes the circulator and encloses the retaining groove, the circulator is installed enclose in the retaining groove, it has the cobblestone to fill in the cistern, the cistern with bury the inside in pond and be linked together through the guiding device, bury the pond including sealing cell body and combination filler, the combination filler is filled seal the inside of cell body, it discharges the pond including settling cell body and automatic reagent feeding device to precipitate, the top of settling the cell body is provided with the apron, install automatic reagent feeding device on the apron.

2. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the filtration includes baffle and filter, the shape of filter with the shape phase-match of cistern inner wall, the filter with the inner wall fixed connection of cistern, the baffle is installed perpendicularly on the filter.

3. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the cistern includes column main part and play weir, one side of column cell body is provided with the open end, the open end with it connects to go out the weir, the bottom of going out the weir is connected bury on the pond, it is formed by weir plate and connecting plate connection to go out the weir, the connecting plate is installed the both sides of open end, the both ends of weir plate respectively with connecting plate fixed connection.

4. The integrated rural domestic sewage treatment equipment according to claim 3, wherein the lower part of the weir plate is provided with a water outlet, the upper part of the weir plate is provided with an overflow port, a filter screen is arranged at the water outlet, the outer side of the overflow port is connected with an L-shaped guide pipe, and the bottom of the L-shaped guide pipe extends downwards to the bottom of the underground pond.

5. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the rotator comprises a first motor, a lifter and a radial brush rod assembly, the lifter is installed at the bottom of the surrounding baffle groove, the first motor is fixedly installed on the lifter, and the radial brush rod assembly is installed on a motor shaft of the first motor.

6. The integrated rural domestic sewage treatment equipment of claim 5, wherein: the radial brush rod assembly comprises a sleeve rod and a brush rod, the sleeve rod is sleeved on the outer side of a motor shaft of the first motor and fixedly connected with the motor shaft, the brush rod is provided with a plurality of brush rods, the brush rod is installed on the side face of the sleeve rod and is arranged between the brush rods in a vertically staggered mode, and a plurality of brush plates are arranged on the brush rod.

7. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the guiding device includes water conservancy diversion canal, channel gate and honeycomb duct, the one end of water conservancy diversion canal is connected on the weir plate, the other end of water conservancy diversion canal is fixed with the closure plate, the one end of honeycomb duct is fixed on the closure plate, the other end downwarping of honeycomb duct extends to the bottom that the combination was packed, the channel gate sets up the middle part of water conservancy diversion canal, the channel gate is by second motor drive.

8. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the combined filler at least comprises three fillers with different particle sizes, and the fillers are sequentially distributed in a descending manner according to the size from top to bottom.

9. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the automatic dosing device comprises a solution tank, a control cabinet and a dosing pipe, wherein the solution tank and the control cabinet are installed on the cover plate in parallel, the upper end of the dosing pipe is connected to the inside of the solution tank, and the bottom of the dosing pipe penetrates through the cover plate and extends into the sedimentation tank body.

10. The integrated rural domestic sewage treatment equipment according to claim 1, wherein: the sedimentation drainage pond still includes the clearance structure and washes the structure, the clearance structure is including promoting cylinder and mud scraper, the promotion cylinder is installed the bottom of sedimentation cell body, the mud scraper is installed promote on the cylinder, the bottom of mud scraper with the bottom contact of sedimentation cell body, it includes blow off pipe, suction pump and clean water pipe to wash the structure, the one end of clean water pipe is connected on municipal administration pipe network, the other end of clean water pipe stretches into in the sedimentation cell body, the suction pump is installed on the blow off pipe, the one end of blow off pipe stretches into the bottom of sedimentation cell body, the other end of blow off pipe is connected in the cistern.