CN108947000B - Energy-saving and emission-reducing town sewage treatment system - Google Patents

Abstract

The invention discloses an energy-saving and emission-reducing town sewage treatment system, which has the technical scheme that the system comprises a filter tank, a chemical sedimentation tank, a sterilization tank and a reservoir which are sequentially connected, a left storage area is arranged from left to right in the filter tank, the water purifier comprises a left filtering area, a right filtering area and a right storage area, wherein a water inlet pipe is connected in the filtering pool, a switching mechanism used for leading water of the water inlet pipe into the left filtering area or the right filtering area is arranged in the filtering pool, a first filtering device and a first decontamination device used for cleaning the water are arranged in the left filtering area, a second filtering device and a second decontamination device used for cleaning the water are arranged in the right filtering area, a first guide mechanism used for leading filtered water into the left storage area in the left filtering pool and a second guide mechanism used for leading filtered water into the right storage area in the right filtering pool are arranged in the filtering pool, and the left storage area and the right storage area are connected with a chemical precipitation pool. When the sewage treatment device is provided with the cleaning and filtering device, sewage can be filtered simultaneously, and the sewage purification efficiency is improved.

Description

Energy-saving and emission-reducing town sewage treatment system

Technical Field

The invention relates to the field of sewage treatment, in particular to an energy-saving and emission-reducing town sewage treatment system.

Background

China is a country with scarce and unevenly distributed fresh water resources, some cities have serious water shortage, and sewage and wastewater need to be recycled to make up for the shortage of water resources while saving water.

The sewage can be filtered through the filtering device in the traditional sewage treatment process, so that some impurities in the sewage are filtered out by the filter screen in the filtering device, and the purpose of purifying the sewage is achieved. But long-term in-process accumulational impurity on the filter screen is more and more can be with the mesh jam of filter screen for sewage reduces through the efficiency of filter screen, the filtration speed that reduces, and need suspend the filtration of sewage when clearing up filter equipment, has reduced the purification efficiency of sewage.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an energy-saving and emission-reducing town sewage treatment system, which can simultaneously filter sewage when a filtering device is cleaned, and improves the sewage purification efficiency.

In order to achieve the purpose, the invention provides the following technical scheme: an energy-saving and emission-reducing town sewage treatment system comprises a filter tank, a chemical sedimentation tank, a sterilization tank and a reservoir which are connected in sequence, a left storage area, a left filtering area, a right filtering area and a right storage area are arranged in the filtering tank from left to right, a water inlet pipe is connected in the filtering tank, a switching mechanism for leading water in the water inlet pipe into the left filtering area or the right filtering area is arranged in the filtering tank, a first filtering device and a first decontamination device for cleaning the first filtering device are arranged in the left filtering area, a second filtering device and a second decontamination device for cleaning the second filtering device are arranged in the right filtering area, the filter tank is internally provided with a first guide mechanism for guiding filtered water in the left filter tank into the left storage area and a second guide mechanism for guiding filtered water in the right filter tank into the right storage area, and the left storage area and the right storage area are connected with the chemical precipitation tank through pipelines.

By adopting the technical scheme, when the first filtering device needs to be cleaned, water flows into the right filtering area through the switching mechanism and is filtered through the second filtering device, the filtered water flows into the right storage area through the second guide mechanism and then flows into the chemical sedimentation tank, and at the moment, the first filtering device can be cleaned through the first decontamination device; when the second filtering device needs to be cleaned, the water flow direction is changed through the switching mechanism, so that water flows into the left filtering area and is filtered through the first filtering device, the filtered water is guided into the left storage area through the guide mechanism, and the second filtering device can be filtered at the moment. In summary, when the first filtering device and the second filtering device are cleaned separately, the water filtering does not need to be stopped, so that the water filtering efficiency is higher.

The invention is further configured to: a left partition plate, a middle partition plate and a right partition plate are fixed in the filtering tank from left to right, and the left storage area, the left filtering area, the right filtering area and the right storage area are partitioned by the left partition plate, the middle partition plate and the right partition plate; the water inlet pipe is located above the left filtering area and fixed on the rear side wall of the filtering tank, the switching mechanism comprises a switching plate, the left end and the right end of the switching plate are respectively connected with the left partition plate and the right partition plate in a rotating mode, the switching plate is driven to rotate by a switching motor fixed on the left partition plate, the switching plate inclines downwards from left to right in an inclined mode, a switching port is formed in the switching plate, and the switching port is located above the right filtering area.

Through adopting above-mentioned technical scheme, when needs sent water into left filtering area, rotate the switching board through the switching motor and make it parallel with the front and back lateral wall of filtering ponds, the inlet tube flows into in the filtering ponds at this moment directly through the space between switching board and the filtering ponds rear side wall and flows into left filtering area.

When water is required to be sent into the right filtering area, the switching plate is rotated through the switching motor to enable the switching plate to be perpendicular to the front side wall and the rear side wall of the filtering tank, at the moment, the water flowing into the filtering tank from the water inlet pipe can flow onto the switching plate and flows into the right filtering area through the switching port along the inclined direction of the switching plate, and therefore the water flow direction is controlled.

The invention is further configured to: the switching plate is provided with a drainage groove communicated with the switching port, the drainage groove extends from left to right, and when the switching plate rotates to be perpendicular to the front side wall and the rear side wall of the filtering tank, the water inlet of the water inlet pipe is positioned right above the drainage groove.

Through adopting above-mentioned technical scheme, when needs are with water direction right filtration district, rotate the switching board and make its perpendicular to filtering ponds around the lateral wall, the water inlet of inlet tube this moment is located the drainage groove directly over for the water that the inlet tube flowed in directly falls into the drainage inslot, and through the drainage groove inflow switching mouth in, make rivers concentrate difficult on switching the board diffusion, make sewage can get into right filtration district through switching the mouth more fast.

The invention is further configured to: the first filtering device and the second filtering device are identical in structure and symmetrical about the middle partition plate, the first filtering device comprises an installation frame which is rotatably connected between the left partition plate and the middle partition plate, the installation frame is driven to rotate by a driving motor fixed on the left partition plate, an installation opening is formed in the middle of the installation frame, and a filtering net is fixed in the installation opening; the first guide mechanism and the second guide mechanism are identical in structure and symmetrical about the middle partition plate, a transmission port is formed in the left partition plate, the first guide mechanism comprises a guide plate penetrating in the transmission port, the guide plate is connected with the front side wall and the rear side wall of the filter tank in a sliding mode, the guide plate is inclined downwards from the middle partition plate to the left partition plate, and a sliding piece used for driving the guide plate to slide along the inclined direction of the guide plate is arranged in the left storage area; the first decontamination device is positioned below the first guide mechanism, and the second decontamination device is positioned below the second guide mechanism.

Through adopting above-mentioned technical scheme, when clearing up first filter equipment's filter screen, earlier with the deflector retraction left storage area of first guiding mechanism, then rotate the installing frame through driving motor for filter screen upset 180 degrees, make debris on the filter screen can fall under the effect of gravity, improved the clean effect to the filter screen, then clear up the filter screen on to first filter equipment through first scrubbing device. The method of cleaning the filter screen of the second filter device is the same as the method of cleaning the filter screen of the first filter device.

The invention is further configured to: the first decontamination device and the second decontamination device are identical in structure and symmetrical about the middle partition plate, the first decontamination device comprises an exhaust pipe fixed at the bottom of the left filtering area, and an air suction pump is fixed at the lower end of the exhaust pipe.

By adopting the technical scheme, when the first filtering device or the second filtering device is cleaned, sundries on the corresponding filter screen on the first filtering device or the second filtering device can be pumped out through the corresponding air pumping pipe only by starting the corresponding air pumping pump.

The invention is further configured to: rubber pads are fixed on the front side and the rear side of the mounting frame.

Through adopting above-mentioned technical scheme, when the installing frame is parallel with the filtering ponds bottom, two rubber pads butt respectively on the inner wall around the filtering ponds for the gap between the lateral wall is less around installing frame and the filtering ponds, makes sewage be difficult for through the installing frame and the filtering ponds gap between the lateral wall downward flow around, makes through filterable sewage more.

The invention is further configured to: and a chamfer is arranged at the upper end of the mounting opening.

Through adopting above-mentioned technical scheme, sewage can flow to the filter screen fast under the guide effect of chamfer for the filter rate of sewage accelerates.

The invention is further configured to: the sliding parts are two adjusting cylinders which are respectively fixed on the front inner wall and the rear inner wall of the left storage area, and piston rods of the adjusting cylinders are connected with the guide plate.

Through adopting above-mentioned technical scheme, every deflector all promotes through two adjust air cylinder for the atress is even around the deflector.

The invention is further configured to: one end of the guide plate, which is close to the middle partition plate, is fixed with a shielding plate, and when the shielding plate moves into the transmission port, the transmission port is shielded by the shielding plate and the guide plate.

Through adopting above-mentioned technical scheme, when the shielding plate removed to the transmission intraoral time, the shielding plate shielded the transmission mouth with the deflector for people are when clearing up first filter equipment and second filter equipment, and the rubbish of clearing up can not fall into left storage area or right storage area through the transmission mouth that corresponds, makes the water after the filtration can not receive secondary pollution.

The invention is further configured to: be connected with flocculating agent feeding mechanism on the lateral wall of chemical precipitation pond, the below of chemical precipitation pond is connected with the dredge pump, be fixed with the mounting panel on the right side wall of chemical precipitation pond, wear to be equipped with the conveyer pipe on the mounting panel, the one end of conveyer pipe is inserted in the sewage of chemical precipitation pond and is fixed with the kickboard, the conveyer pipe other end is connected with the connection pump, and the other end of connection pump is connected with the pond of disinfecting.

Through adopting above-mentioned technical scheme, carry the flocculating agent to chemical sedimentation tank through flocculating agent feeding device, the flocculating agent reacts and forms the flocculent sediment with the impurity in the sewage that flows into chemical sedimentation tank, and the flocculent sediment moves down and discharges through the dredge pump under the effect of gravity, and the connecting pump can be with the clear solution on chemical sedimentation tank upper layer take out send into in the sterilization pond. The kickboard can make the conveyer pipe insert the degree of depth in the sewage and keep inconvenient, is convenient for extract supernatant, prevents that the conveyer pipe from stretching into chemical precipitation pond bottom of the pool will flocculent deposit suction.

In conclusion, the invention has the following beneficial effects:

water flowing into the filter tank through the water inlet pipe can be input into the left filter area or the right filter area under the action of the switching plate, so that when people clear the first filter device, water can be filtered through the second filter device, when the second filter device is cleared with the clearing, the water can be filtered through the first filter device, so that when people clear the first filter device or the second filter device, sewage can be filtered, and the filtering speed is improved.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view showing the internal structure of the filtration tank in this embodiment;

FIG. 3 is a schematic structural diagram of the mounting frame in the present embodiment;

FIG. 4 is a schematic view showing the connection relationship between the chemical precipitation tank and the sterilization tank in this embodiment.

Reference numerals: 1. a filtration tank; 2. a chemical sedimentation tank; 3. a sterilizing pond; 4. a reservoir; 5. a left baffle plate; 6. a middle partition plate; 7. a right baffle plate; 8. a transfer port; 9. a water inlet pipe; 11. a left storage area; 12. a left filtration zone; 13. a right filtration zone; 14. a right storage area; 15. a first filtering device; 16. a second filtering device; 17. a first guide mechanism; 18. a second guide mechanism; 19. a switching mechanism; 121. a first decontamination device; 122. an air exhaust pipe; 123. an air pump; 131. a second decontamination device; 151. installing a frame; 152. a drive motor; 153. an installation port; 154. a filter screen; 155. chamfering; 156. a rubber pad; 171. a guide plate; 172. an adjusting cylinder; 173. a shielding plate; 191. a switch board; 192. switching the motors; 193. a switching port; 194. a drainage groove; 21. a flocculant supply device; 22. a sewage pump; 23. mounting a plate; 24. a delivery pipe; 25. a floating plate; 26. connecting a pump; 31. an ozone generating device; 32. and (6) discharging the water pump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an energy-saving and emission-reducing town sewage treatment system, as shown in fig. 1, the system comprises a filtering tank 1, a chemical sedimentation tank 2, a sterilization tank 3 and a reservoir 4 which are connected in sequence, wherein sewage sequentially passes through the filtering tank 1, the chemical sedimentation tank 2, the sterilization tank 3 and the reservoir 4.

As shown in fig. 1 and 2, a left partition plate 5, a middle partition plate 6 and a right partition plate 7 are sequentially fixed on the bottom of the filtering tank 1 from left to right, the filtering tank 1 is sequentially divided into a left storage area 11, a left filtering area 12, a right filtering area 13 and a right storage area 14 by the left partition plate 5, the middle partition plate 6 and the right partition plate 7, a first filtering device 15 and a second filtering device 16 are respectively arranged in the left filtering area 12 and the right filtering area 13, and the first filtering device 15 and the second filtering device 16 have the same structure and are symmetrical about the middle partition plate 6.

As shown in fig. 2 and 3, the first filtering device 15 includes a mounting frame 151 located in the left filtering area 12, the left and right sides of the mounting frame 151 are respectively rotatably connected to the left partition plate 5 and the middle partition plate 6, and a driving motor 152 for driving the mounting frame 151 to rotate along a rotation axis is fixed on one side of the left partition plate 5 facing the left storage area 11.

As shown in fig. 2 and 3, a mounting opening 153 is provided in the middle of the mounting frame 151, a filter screen 154 is fixed in the mounting opening 153, and rubber pads 156 are fixed to the front and rear sides of the mounting frame 151. When installing frame 151 is parallel with filtering ponds 1 bottom, two rubber pads 156 butt respectively on the inner wall around filtering ponds 1 for the gap between installing frame 151 and the filtering ponds 1 front and back lateral wall is less, makes sewage be difficult for through installing frame 151 and filtering ponds 1 front and back gap between the lateral wall downward flow, makes through filterable sewage more.

As shown in fig. 2 and 3, a chamfer 155 is provided at the upper end of the mounting hole 153, and the sewage can rapidly flow to the filter screen 154 under the guiding action of the chamfer 155, so that the filtering speed of the sewage is increased.

As shown in fig. 2 and 3, a first guide mechanism 17 and a second guide mechanism 18 are respectively arranged below the first filter device 15 and the second filter device 16, and the first guide mechanism 17 and the second guide mechanism 18 are identical in structure and symmetrical with respect to the middle partition plate 6.

As shown in fig. 2 and 3, the left partition 5 is provided with a transfer port 8, the first guide mechanism 17 includes a guide plate 171 penetrating the transfer port 8, the guide plate 171 is slidably connected to the front and rear side walls of the filtration tank 1, the guide plate 171 is inclined obliquely downward toward the left partition 5 from the middle partition 6, two adjusting cylinders 172 are provided below the guide plate 171 and fixed to the front and rear side walls of the filtration tank 1, respectively, and the piston rods of the adjusting cylinders 172 are connected to the lower ends of the guide plate 171 so that the adjusting cylinders 172 can push the guide plate 171 to slide along the inclined direction thereof.

As shown in fig. 2 and 3, the water inlet pipe 9 is located above the left filtering tank 1, the switching mechanism 19 is disposed above the first filtering device 15, the switching cylinder includes a switching plate 191 having left and right ends rotatably connected to the left partition 5 and the right partition 7, respectively, the switching plate 191 is driven to rotate by a switching motor 192 fixed to the left partition 5, the switching plate 191 is inclined downward from left to right, a switching port 193 is disposed on the switching plate 191, and the switching port 193 is located above the right filtering region 13. The middle part of the switching plate 191 is provided with a drainage groove 194 communicated with the switching port 193, the drainage groove 194 extends from left to right, and when the switching plate 191 is vertical to the front side wall and the rear side wall of the filtering tank 1, the water inlet of the water inlet pipe 9 is positioned right above the drainage groove 194.

As shown in fig. 2 and 3, a first pollutant removing device 121 and a second pollutant removing device 131 are arranged at the bottom of the left filtering area 12 and the right filtering area 13, and the first pollutant removing device 121 and the second pollutant removing device 131 are identical in structure and are symmetrical about the middle partition plate 6. The first pollutant removing device 121 comprises an air suction pipe 122 fixed at the bottom of the left filtering area 12, and an air suction pump 123 is fixed at the lower end of the air suction pipe 122. When the filter screen 154 on the first filter device 15 needs to be cleaned, the switch plate 191 is rotated by the switch motor 192 so that the switch plate 191 is perpendicular to the front and rear side walls of the filter tank 1, at this time, the sewage flows into the drainage groove 194 and flows into the right filter area 13 along the guide plate 171 through the switch port 193, and the guide plate 171 on the second guide mechanism 18 abuts on the middle partition plate 6, so that the sewage filtered by the second filter device 16 flows into the right storage area 14 through the guide plate 171, thereby enabling the sewage to be continuously filtered without being affected.

As shown in fig. 2 and 3, after the switching plate 191 rotates perpendicularly to the front and rear side walls of the filtration tank 1, the guide plate 171 of the first guide mechanism 17 is moved into the left storage area 11 by the corresponding adjustment cylinder 172; then the driving motor 152 corresponding to the first filtering device 15 rotates the filter screen 154 on the first filtering device 15 by 180 degrees so that the impurities on the filter screen 154 can automatically fall down through gravity, and then the air pump 123 is started to pump out the impurities on the filter screen 154 downwards, so that the filter screen 154 is cleaned up.

As shown in fig. 2 and 3, when the filter screen 154 on the second filtering device 16 needs to be cleaned, the switch plate 191 is rotated by the switch motor 192 to make the switch plate 191 perpendicular to the front and rear side walls of the filtering tank 1, at this time, the sewage can directly flow into the left filtering area 12, and at this time, the situation of the filter screen 154 on the second filtering device 16 does not affect the filtering of the sewage.

As shown in fig. 2 and 3, after the switching plate 191 is parallel to the front and rear side walls of the filtration tank 1, the guide plate 171 of the second guide mechanism 18 is moved into the right storage area 14 by the corresponding adjusting cylinder 172, and then the filter screen 154 on the second filtration device 16 is rotated by 180 degrees by the corresponding driving motor 152 of the second filtration device 16, so that the impurities on the filter screen 154 can automatically fall down by gravity, and then the air suction pump 123 is started to draw out the impurities on the filter screen 154 downwards, so that the filter screen 154 is cleaned up.

As shown in fig. 2 and 3, a shielding plate 173 is fixed at one end of the guide plate 171 close to the middle partition 6, and when the guide plate 171 of the first guide mechanism 17 is completely located in the left storage area 11 during cleaning of the first filter device 15, the shielding plate 173 and the guide plate 171 shield the transmission port 8, so that dust is not easy to fall into the left storage area 11 during cleaning of the first filter device 15. Similarly, when the second filter device 16 is cleaned, dust is not easily dropped into the right storage region 14.

As shown in fig. 1 and 2, the left storage area 11 and the right storage area 14 are connected to the chemical precipitation tank 2 below the filtration tank 1 through pipes, and a flocculant supply device 21 is connected to the side wall of the chemical precipitation tank 2.

As shown in fig. 1 and 4, a sewage pump 22 is connected below the chemical precipitation tank 2, an installation plate 23 is fixedly connected to the right side wall of the chemical precipitation tank 2, a delivery pipe 24 is arranged on the installation plate 23 in a penetrating manner, one end of the delivery pipe 24 is inserted into the sewage in the chemical precipitation tank 2 and is fixedly provided with a floating plate 25, the other end of the delivery pipe 24 is connected with a connection pump 26, and the other end of the connection pump 26 is connected with the sterilization tank 3.

As shown in fig. 2 and 3, the flocculant is supplied into the chemical precipitation tank 2 by the flocculant supply device 21 so that impurities in the sewage flowing into the chemical precipitation tank 2 react with the flocculant and form flocculent precipitates. The flocculent precipitate moves down under the action of gravity and is discharged through the sewage pump 22, the supernatant in the chemical precipitation tank 2 can be pumped out through the connecting pump 26 and sent into the sterilization tank 3, and the supernatant can be extracted due to the fact that the floating plate 25 has buoyancy and the depth of the conveying pipe 24 inserted into the sewage is certain convenient.

As shown in fig. 1 and 4, an ozone generator 31 is fixed in the sterilization tank 3, a water outlet pump 32 is connected to a side wall of the sterilization tank 3, the other end of the water outlet pump 32 is connected to the water reservoir 4, and the water treated in the chemical precipitation tank 2 flows into the sterilization tank 3, and is delivered into the water reservoir 4 for storage through the water outlet pump 32 after being sterilized by ozone.

The specific cleaning process comprises the following steps: when cleaning the filter screen 154 of the first filtering device 15, the switching plate 191 is rotated to make the switching plate 191 perpendicular to the front and rear side walls of the filtering tank 1, at this time, the sewage flows into the right storage area 14 through the switching port 193 for filtering, at the same time, the guide plate 171 of the first guide mechanism 17 is contracted to shield the transmission port 8 tombstone guide plate 171 and the shielding plate 173, and then the mounting frame 151 of the first filtering device 15 is rotated 180 degrees and is pumped by the air pump 123 of the first dirt removing device 121, so that the impurities accumulated on the first filtering device 15 are cleaned; in cleaning the second filtering means 16, the switching plate 191 is rotated such that the switching plate 191 is parallel to the front and rear side walls of the filtering tank 1, and the sewage is directly dropped into the left filtering section 12 for filtering, and the cleaning method of the second filtering means 16 is the same as that of the first filtering means 15.

In conclusion, when people clean the first filtering device 15 or the second filtering device 16, sewage can still be filtered normally, so that the sewage filtering efficiency is higher.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims (6)

1. The utility model provides an energy saving and emission reduction's town sewage treatment system, includes filtering ponds (1), chemical sedimentation tank (2), sterilization pond (3) and cistern (4) that connect gradually, its characterized in that: the filter tank is characterized in that a left storage area (11), a left filtering area (12), a right filtering area (13) and a right storage area (14) are arranged in the filter tank (1) from left to right, a water inlet pipe (9) is connected in the filter tank (1), a switching mechanism (19) for leading water of the water inlet pipe (9) into the left filtering area (12) or the right filtering area (13) is arranged in the filter tank (1), a first filtering device (15) and a first decontamination device (121) for cleaning the first filtering device (15) are arranged in the left filtering area (12), a second filtering device (16) and a second decontamination device (131) for cleaning the second filtering device (16) are arranged in the right filtering area (13), a first guide mechanism (17) for leading filtered water in the left filtering tank (1) into the left storage area (11) and a second guide mechanism (18) for leading filtered water in the right filtering tank (1) into the right storage area (14) The left storage area (11) and the right storage area (14) are connected with the chemical sedimentation tank (2) through pipelines, a left partition plate (5), a middle partition plate (6) and a right partition plate (7) are fixed in the filtering tank (1) from left to right, and the left storage area (11), the left filtering area (12), the right filtering area (13) and the right storage area (14) are partitioned by the left partition plate (5), the middle partition plate (6) and the right partition plate (7); the water inlet pipe (9) is positioned above the left filtering area (12) and fixed on the rear side wall of the filtering tank (1), the switching mechanism (19) comprises a switching plate (191) with the left end and the right end respectively rotatably connected with the left partition plate (5) and the right partition plate (7), the switching plate (191) is driven to rotate by a switching motor (192) fixed on the left partition plate (5), the switching plate (191) inclines downwards from left to right, a switching port (193) is arranged on the switching plate (191), the switching port (193) is positioned above the right filtering area (13), the first filtering device (15) and the second filtering device (16) have the same structure and are symmetrical about the middle partition plate (6), the first filtering device (15) comprises an installation frame (151) rotatably connected between the left partition plate (5) and the middle partition plate (6), and the installation frame (151) is driven to rotate by a driving motor (152) fixed on the left partition plate (5), a mounting opening (153) is formed in the middle of the mounting frame (151), and a filter screen (154) is fixed in the mounting opening (153); the first guide mechanism (17) and the second guide mechanism (18) are identical in structure and symmetrical about the middle partition plate (6), a transmission port (8) is formed in the left partition plate (5), the first guide mechanism (17) comprises a guide plate (171) penetrating through the transmission port (8), the guide plate (171) is connected with the front side wall and the rear side wall of the filter tank (1) in a sliding mode, the guide plate (171) inclines downwards from the middle partition plate (6) to the left partition plate (5), and a sliding piece used for driving the guide plate (171) to slide along the inclination direction of the guide plate is arranged in the left storage area (11); first scrubbing device (121) are located the below of first guiding mechanism (17), second scrubbing device (131) are located the below that guiding mechanism was crossed to the second, first scrubbing device (121) and second scrubbing device (131) structure is the same and symmetrical about median septum (6), first scrubbing device (121) are including fixing aspiration tube (122) in left filtering area (12) bottom, and the lower extreme of aspiration tube (122) is fixed with aspiration pump (123), the slider is two adjustment cylinder (172) of fixing respectively on inner wall around left storage area (11), the piston rod and the deflector (171) of adjustment cylinder (172) are connected.

2. The town sewage treatment system capable of saving energy and reducing emission as claimed in claim 1, wherein: be equipped with on switching board (191) and switch drainage groove (194) that mouthful (193) communicate, drainage groove (194) extend from a left side to the right side, when switching board (191) rotate to the front and back lateral wall with filtering ponds (1) perpendicular, the water inlet of inlet tube (9) is located drainage groove (194) directly over.

3. The town sewage treatment system capable of saving energy and reducing emission as claimed in claim 1, wherein: rubber pads (156) are fixed to the front side and the rear side of the mounting frame (151).

4. The town sewage treatment system capable of saving energy and reducing emission as claimed in claim 3, wherein: and a chamfer (155) is arranged at the upper end of the mounting opening (153).

5. The town sewage treatment system capable of saving energy and reducing emission as claimed in claim 1, wherein: a shielding plate (173) is fixed at one end, close to the middle partition plate (6), of the guide plate (171), and when the shielding plate (173) moves into the transmission port (8), the transmission port (8) is shielded by the shielding plate (173) and the guide plate (171).

6. The town sewage treatment system capable of saving energy and reducing emission as claimed in claim 1, wherein: be connected with flocculating agent feeding device (21) on the lateral wall of chemical precipitation pond (2), the below of chemical precipitation pond (2) is connected with dredge pump (22), be fixed with mounting panel (23) on the right side wall of chemical precipitation pond (2), wear to be equipped with conveyer pipe (24) on mounting panel (23), the one end of conveyer pipe (24) is inserted in the sewage of chemical precipitation pond (2) and is fixed with kickboard (25), conveyer pipe (24) other end is connected with connection pump (26), and the other end of connection pump (26) is connected with sterilization pond (3).

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