CN113800656A - Urban sewage treatment device - Google Patents
Urban sewage treatment device Download PDFInfo
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- CN113800656A CN113800656A CN202111152515.XA CN202111152515A CN113800656A CN 113800656 A CN113800656 A CN 113800656A CN 202111152515 A CN202111152515 A CN 202111152515A CN 113800656 A CN113800656 A CN 113800656A
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- aeration
- aeration tank
- pipe
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- stirring frame
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1278—Provisions for mixing or aeration of the mixed liquor
- C02F3/1284—Mixing devices
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
- C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/12—Prevention of foaming
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a town sewage treatment device, which comprises an aeration tank, wherein a mounting plate is arranged on the upper side of the aeration tank, a plurality of support columns are fixedly connected between the mounting plate and the aeration tank, a stirring mechanism and an aeration mechanism are arranged in the aeration tank, the stirring mechanism comprises a stirring frame which is rotatably arranged in the aeration tank and a motor which drives the stirring frame to rotate, the motor is fixedly arranged on the mounting plate, the aeration mechanism comprises a plurality of aeration pipes and an aerator which provides air sources for the aeration pipes, the aerator is fixedly arranged on the mounting plate, the aeration pipes are fixedly arranged on the stirring frame, and when the aeration pipes rotate along with the stirring frame, the aeration range passed by the aeration pipes covers the whole aeration tank. The device can effectively reduce the foam on the liquid surface in the aeration tank, and can also make the mixed liquid in the aeration tank more even, improve sewage treatment's quality.
Description
Technical Field
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a town sewage treatment device.
Background
The town sewage generally refers to domestic sewage of towns and residents, drainage of offices, schools, hospitals, commercial service organizations and various public facilities, industrial wastewater and initial rainwater which are allowed to be discharged into a town sewage collection system, and the like. Town sewage treatment is generally divided into three levels. The first stage is physical treatment, which is a technological process of removing impurities such as suspended matters, floating matters and the like in sewage, adjusting the pH value and reducing the rotting degree of the sewage by simple sedimentation, filtration or proper aeration, and usually adopts a mechanical grid tank or a primary sedimentation tank to treat the sewage; the second stage is biological treatment, namely a process for further purifying sewage through the treatment of an aeration tank with activated sludge and a sedimentation tank; the third stage is advanced treatment, and further treatment of refractory organic matter, soluble inorganic matter capable of causing water eutrophication, such as nitrogen, phosphorus and the like, is carried out by a biological nitrogen and phosphorus removal method, a coagulating sedimentation method, a sand filtration method, an activated carbon adsorption method, an ion exchange method, an electroosmosis analysis method and the like.
However, the change of the water quantity and the water quality of the urban sewage is large, and the conditions of equipment and facilities are poor, so that the treatment is relatively difficult, particularly in the aeration treatment stage in the secondary treatment, a large amount of foams often appear on the water surface in the aeration tank, the foams not only can influence the normal display of a meter, but also can prevent the normal aeration oxygenation, so that the dissolved oxygen of the mixed liquid in the tank is reduced, and some foams even can overflow the aeration tank, thereby influencing the normal maintenance of sewage treatment equipment. The reasons for foam generation are mainly: 1. the sludge has long retention time and low jumping degree, and stable foam is easily formed; 2. the dissolved oxygen is insufficient, so that denitrification foam is easily generated; 3. the aeration is uneven, and a foam layer is easily generated in an area with low aeration strength; 4. the aeration is too violent, and foam is easily formed.
At present, for the problem of foam in sewage treatment, most sewage treatment plants adopt chemical agents such as defoaming agents to eliminate foam, but the addition of the chemical agents can also greatly affect sludge while solving the problem of foam, and after the chemical agents are used, the quality of effluent water can be greatly affected, and residual substances are not convenient to treat, so that the foam on the surface of an aeration tank becomes a problem to be solved urgently.
Disclosure of Invention
The purpose of the invention is: aims to provide a town sewage treatment device which is used for solving the problem of more foam on the water surface in an aeration tank pointed out in the background technology.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a town sewage treatment plant, includes the aeration tank, the upside of aeration tank is provided with the mounting panel, many support columns of fixedly connected with between mounting panel and the aeration tank, install rabbling mechanism and aeration mechanism in the aeration tank, rabbling mechanism is including rotating the stirring frame of installing in the aeration tank and drive stirring frame pivoted motor, motor fixed mounting is on the mounting panel, aeration mechanism includes many aeration pipes and provides the aeration machine of air supply for the aeration pipe, aeration machine fixed mounting is on the mounting panel, aeration pipe fixed mounting is on the stirring frame.
By adopting the scheme, when the stirring frame rotates, the plurality of aeration pipes can be driven to rotate in the aeration tank, so that the aeration range is enlarged, the aeration in the aeration tank is more uniform, the aeration tank has sufficient dissolved oxygen, the activity of activated sludge and the activity of various microorganisms are improved, and the probability of generating foams is reduced; simultaneously, the stirring frame and the aeration pipe rotate, so that the sewage is mixed with the activated sludge, the flocculating agent and the like more uniformly, and the sewage treatment effect is enhanced.
Further inject, the stirring frame includes the center pillar, go up the spreader, lower spreader and two side posts that integrated into one piece set up, the center pillar is located the central point of aeration tank and puts, two the side post is located the left and right sides of center pillar respectively, one side that the side post is far away from the center pillar is contacted with the lateral wall of aeration tank each other all the time, go up the spreader and be located the upper and lower both sides of center pillar respectively with lower spreader, the bottom side of lower spreader is contacted with aeration tank diapire each other all the time.
Through adopting above-mentioned scheme, the activated sludge who adheres to on the aeration tank lateral wall can be scraped down to the side post, and the activated sludge who adheres to on the aeration tank diapire can be scraped down to the lower spreader, not only can improve activated sludge's activeness, reduces the probability that produces the foam, has also reduced the probability that activated sludge adheres to on the aeration tank inner wall simultaneously, the follow-up aeration tank of clearing up of being convenient for.
Further inject, be fixed with down the rotation post on the spreader down, the rotation post rotates to be installed on the diapire of aeration tank down, be fixed with on the spreader, go up the rotation post and rotate to be installed on the mounting panel, be fixed with first belt pulley on going up the rotation post, the output shaft of motor passes the mounting panel and is fixed with the second belt pulley, the transmission is connected with the belt between second belt pulley and the first belt pulley.
By adopting the scheme, the stirring frame can be driven by the motor to rotate in the aeration tank conveniently.
The gas-liquid separation device is characterized in that the gas-liquid separation device is further limited, one end of each aeration pipe is fixedly installed in the middle upright post, the other end of each aeration pipe extends to the position of the side upright post, the aeration pipes are uniformly distributed on two sides of the middle upright post, gas guide pipelines are arranged in the middle upright post and are communicated with all the aeration pipes, the upper end of each gas guide pipeline extends into the corresponding upper rotating post, the top end of each upper rotating post is rotatably connected with a rotary joint, the rotary joints are communicated with the gas guide pipelines, the rotary joints are fixedly installed on the installation plates, one ends, far away from the gas guide pipelines, of the rotary joints are communicated with gas pipes, and one ends, far away from the rotary joints, of the gas pipes are communicated with the aerator.
By adopting the scheme, the aerator can smoothly convey the air source into all aeration pipes, so that the aeration pipes can smoothly aerate.
Further limiting, a plurality of groups of aeration holes are arranged on the side wall of the aeration pipe, each group of aeration holes are linearly arranged and are arranged along the length direction of the aeration pipe, the plurality of groups of aeration holes are distributed on the aeration pipe in a circumferential array structure, a sleeve is sleeved outside the aeration pipe, the inner diameter of the sleeve is equal to the outer diameter of the aeration pipe, a plurality of air outlets are arranged on the side wall of the sleeve and are distributed on the sleeve in a circumferential array structure, a mud blocking strip is arranged between every two adjacent air outlets, the mud blocking strip and the air outlets are arranged along the length direction of the aeration pipe, and each mud blocking strip or each air outlet can cover one group of aeration holes; the sleeve pipe rotates and is installed on the stirring frame, and when the stirring frame rotates, the sleeve pipe can rotate relative to the aeration pipe.
By adopting the scheme, when the stirring frame rotates, the sleeve can also rotate relative to the aeration pipe, so that the plurality of mud blocking strips can uninterruptedly rotate outside the aeration pipe, and when the mud blocking strips rotate around the aeration pipe, the aeration holes can be intermittently blocked, the probability of depositing activated sludge in the aeration holes is reduced, meanwhile, the activated sludge deposited on the aeration pipe can be cleaned, and the probability of blocking the aeration holes is reduced; and the purpose of intermittent aeration can be achieved, the condition of over intense aeration is avoided, and the probability of generating foam is reduced.
Further limiting, one end of the sleeve is rotatably installed on the middle upright post, the other end of the sleeve is rotatably installed on the side upright post and penetrates through the side upright post, a gear is fixed at one end of the sleeve, which is far away from the middle upright post, an annular groove is formed in the aeration tank, an annular rack is arranged in the annular groove of the aeration tank, and the gear is located in the annular groove and is in meshed connection with the annular rack.
By adopting the scheme, the stirring frame can smoothly drive the sleeve to rotate relative to the aeration pipe when rotating.
Further, a plurality of stirring blades are fixed on one side, away from the aerator pipe, of each mud guard strip, and the stirring blades are distributed in the length direction of the mud guard strips at equal intervals.
Through adopting above-mentioned scheme, when the relative aeration pipe of sleeve pipe rotates, stirring vane can enough be rotatory around the center post, can rotate around the aeration pipe again to make different horizontal position, the sewage homoenergetic of different water level height can obtain the intensive mixing, stirring vane mutually supports with stirring frame, aeration pipe, and it is more even to both make the mixed liquid in the aeration tank, improves sewage treatment efficiency, can improve the activity of activated sludge and microorganism again, reduces the probability that produces the foam.
Further, the lower side surface of the upper cross column is lower than the liquid level in the aeration tank, and the upper side surface of the upper cross column is higher than the liquid level in the aeration tank.
By adopting the scheme, when the upper transverse column rotates around the middle upright column, the upper transverse column can push and disperse the foam on the water surface and crush a small part of the foam, so that the stability of the gathered foam is damaged, and the probability of forming a large amount of stable foam is reduced.
Further inject, install watering mechanism on the last spreader, watering mechanism includes suction pump and sprinkler bead, suction pump and sprinkler bead fixed mounting are on last spreader, the end intercommunication of intaking of suction pump has the inlet tube, the inlet tube is fixed on the agitator and is extended to under the liquid level in the aeration tank, the play water end intercommunication of suction pump has the outlet pipe, the outlet pipe is communicated with the sprinkler bead.
Through adopting above-mentioned scheme, the water pump can be with the water uptake in the aeration tank come, then spout the liquid level through the sprinkler bead on, eliminate remaining foam on the liquid level, further reduce the foam on the surface of water in the aeration tank.
The number of the water spraying heads is two, and the two water spraying heads are arranged in a central symmetry mode around the upper rotating column; the sprinkler bead is the elongated structure, the water spray direction of sprinkler bead is towards the liquid level in the aeration tank, when the sprinkler bead rotates along with the stirring frame, the water spray scope that the sprinkler bead passes covers the liquid level of whole aeration tank.
By adopting the scheme, when the sprinkler bead rotates along with the stirring frame, the water spraying range of the sprinkler bead covers the liquid level of the whole aeration tank, and the effect of eliminating foam is improved.
The invention adopting the technical scheme has the advantages that:
1. when the stirring frame rotates, the plurality of aeration pipes can be driven to rotate in the aeration tank, so that the aeration range is enlarged, the aeration in the aeration tank is more uniform, sufficient dissolved oxygen is reserved in the aeration tank, the activity of activated sludge and the activity of various microorganisms are improved, and the probability of generating foams is reduced; simultaneously, the stirring frame and the aeration pipe rotate, so that the sewage is mixed with the activated sludge, the flocculating agent and the like more uniformly, and the sewage treatment effect is enhanced.
2. When the stirring frame rotates, the side upright posts can scrape the activated sludge attached to the side wall of the aeration tank, the lower cross posts can scrape the activated sludge attached to the bottom wall of the aeration tank, the activity of the activated sludge can be improved, the probability of generating foam is reduced, the probability of attaching the activated sludge to the inner wall of the aeration tank is reduced, and the aeration tank is convenient to clean subsequently.
3. When the stirring frame rotates, the sleeve can also rotate relative to the aeration pipe, so that the plurality of mud blocking strips can uninterruptedly rotate outside the aeration pipe, and when the mud blocking strips rotate around the aeration pipe, the aeration holes can be intermittently blocked, the probability that the activated sludge is deposited in the aeration holes is reduced, meanwhile, the activated sludge deposited on the aeration pipe can be cleaned, and the probability that the aeration holes are blocked is reduced; and the purpose of intermittent aeration can be achieved, the condition of over intense aeration is avoided, and the probability of generating foam is reduced.
4. When the relative aeration pipe of sleeve pipe rotated, stirring vane can enough be rotatory around the center post, can rotate around the aeration pipe again to make different horizontal position, the sewage homoenergetic of different water level height can obtain the intensive mixing, stirring vane mutually supports with stirring frame, aeration pipe, and the mixed liquid in the aeration tank that has both made is more even, improves sewage treatment efficiency, can improve the activity of activated sludge and microorganism again, reduces the probability that produces the foam.
5. The water pump can suck up the water in the aeration tank and then spray the water onto the liquid surface through the water spray head, thereby eliminating the residual foam on the liquid surface and further reducing the foam on the water surface in the aeration tank; when the sprinkler bead rotates along with the stirring frame, the water spraying range of the sprinkler bead covers the liquid level of the whole aeration tank, and the effect of eliminating foam is improved.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the embodiment of the present invention at A in FIG. 2;
FIG. 4 is a schematic structural view illustrating a stirring rack and a water spraying mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating the structure of an aerator pipe and a sleeve according to an embodiment of the present invention;
the main element symbols are as follows: 1. an aeration tank; 11. mounting a plate; 12. a support pillar; 13. an annular groove; 14. a rack; 2. a stirring mechanism; 21. a stirring frame; 211. a middle upright post; 212. an upper transverse column; 213. a lower cross post; 214. a side column; 215. a lower rotating column; 216. an upper rotating column; 22. a motor; 23. a first pulley; 24. a second pulley; 25. a belt; 3. an aeration mechanism; 31. an aeration pipe; 311. an aeration hole; 32. an aerator; 33. an air guide duct; 34. a gas delivery pipe; 35. a sleeve; 351. an air outlet; 352. a mud guard bar; 353. a stirring blade; 354. a gear; 36. a rotary joint; 4. a watering mechanism; 41. a water suction pump; 42. a sprinkler head; 43. a water inlet pipe; 44. a water outlet pipe; 45. and (4) branch pipes.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the town sewage treatment device of the present invention comprises a circular aeration tank 1, the top end of the aeration tank 1 is open, a square mounting plate 11 is arranged on the upper side of the aeration tank 1, four support columns 12 with an L-shaped structure are fixedly connected between the mounting plate 11 and the open end of the aeration tank 1, so that the mounting plate 11 is fixed above the aeration tank 1, a stirring mechanism 2 and an aeration mechanism 3 are arranged in the aeration tank 1, the stirring mechanism 2 comprises a stirring frame 21 rotatably arranged in the aeration tank 1 and a motor 22 driving the stirring frame 21 to rotate, the motor 22 is fixedly arranged on the upper side surface of the mounting plate 11 through bolts, the aeration mechanism 3 comprises a plurality of aeration pipes 31 and an aerator 32 providing an air source for the aeration pipes 31, the aerator 32 is also fixedly arranged on the upper side surface of the mounting plate 11 through bolts, the aeration pipes 31 are fixedly arranged on the stirring frame 21, when the aeration pipes 31 rotate along with the stirring frame 21, the aeration range of the aeration pipes 31 can cover the whole aeration tank 1, and when the motor 22 drives the stirring frame 21 to rotate, the aeration pipes 31 can be driven to rotate in the aeration tank 1, so that the aeration range is enlarged, the aeration in the aeration tank 1 is more uniform, the aeration tank 1 is provided with sufficient dissolved oxygen, the activity of activated sludge and the activity of various microorganisms are improved, and the probability of generating foams is reduced; meanwhile, the sewage is mixed with the activated sludge, the flocculating agent and the like more uniformly by rotating the stirring frame 21 and the aeration pipe 31, so that the sewage treatment effect is enhanced.
The stirring frame 21 comprises a middle upright post 211, an upper upright post 212, a lower upright post 213 and two side upright posts 214 which are integrally formed, wherein the middle upright post 211, the upper upright post 212, the lower upright post 213 and the two side upright posts 214 are rectangular posts, the middle upright post 211 is positioned at the central position of the aeration tank 1, the two side upright posts 214 are respectively positioned at the left side and the right side of the middle upright post 211, one side of each side upright post 214, which is far away from the middle upright post 211, is of an arc-shaped surface structure, the radian of the arc-shaped surface is matched with the side wall of the aeration tank 1, one side of each side upright post 214, which is far away from the middle upright post 211, is always contacted with the side wall of the aeration tank 1, the upper upright post 212 and the lower upright post 213 are respectively positioned at the upper side and the lower side of the middle upright post 211, through the arrangement, the side upright posts 214 can scrape the activated sludge attached to the bottom wall of the aeration tank 1, the activity of the activated sludge can be improved, the probability of generating foam is reduced, the probability of the activated sludge attached to the inner wall of the aeration tank 1 is reduced, and the subsequent cleaning of the aeration tank 1 is facilitated; lower integrated into one piece has down rotation post 215 under centering stand 211 on spreader 213, the downthehole that changes has been seted up on the diapire of aeration tank 1, rotation post 215 rotates down and installs in the commentaries on classics of aeration tank 1 diapire, go up spreader 212 and go up centering stand 211 and have last rotation post 216 directly over integrated into one piece, the through-hole has been seted up on the mounting panel 11, the upper end of going up rotation post 216 is rotated and is installed in the through-hole of mounting panel 11, it has first belt pulley 23 to go up the key joint on rotation post 216, first belt pulley 23 is located between aeration tank 1's the opening end and the mounting panel 11, the output shaft of motor 22 passes mounting panel 11 and key joint has second belt pulley 24, the transmission is connected with belt 25 between second belt pulley 24 and the first belt pulley 23.
One end of each aeration pipe 31 is fixedly arranged in the middle upright post 211, the other end of each aeration pipe 31 extends to the side upright post 214, and each aeration pipe 31 is perpendicular to the middle upright post 211, the number of the aeration pipes 31 in the embodiment is four, the four aeration pipes 31 are uniformly distributed on the left side and the right side of the middle upright post 211, a vertical air guide pipeline 33 is arranged in the middle upright post 211, the air guide pipelines 33 are communicated with all the aeration pipes 31, the upper end of each air guide pipeline 33 extends into the upper rotating post 216 and penetrates through the upper rotating post 216, the top end of the upper rotating post 216 is rotatably connected with a rotary joint 36, the lower end of the rotary joint 36 is communicated with the air guide pipeline 33, the rotary joint 36 is fixedly arranged in the through hole of the mounting plate 11, the upper end of the rotary joint 36 is positioned outside the through hole and is communicated with an air pipe 34, one end, far away from the rotary joint 36, of the air pipe 34 is communicated with the aerator 32, and by the arrangement, when the stirring frame 21 drives the aeration pipes 31 to rotate, the aerator 32 can smoothly convey the air source to all the aeration pipes 31.
The side wall of the aeration pipe 31 is provided with a plurality of groups of aeration holes 311, each group of aeration holes 311 is arranged in a straight line and is arranged along the length direction of the aeration pipe 31, the number of the groups of aeration holes 311 is four in this embodiment, the four groups of aeration holes 311 are distributed on the circumferential side wall of the aeration pipe 31 in a circumferential array structure, the aeration pipe 31 is externally sleeved with a sleeve 35, the inner diameter of the sleeve 35 is equal to the outer diameter of the aeration pipe 31, the side wall of the sleeve 35 is provided with four air outlets 351, the four air outlets 351 are distributed on the circumferential side wall of the sleeve 35 in a circumferential array structure, a mud blocking strip 352 is arranged between every two adjacent air outlets 351, the mud blocking strip 352 and the air outlets 351 are arranged along the length direction of the aeration pipe 31, the number of the mud blocking strips 352 and the air outlets 351 in this embodiment is four, and each mud blocking strip 352 or air outlet 351 can cover one group of aeration holes 311, the sleeve 35 is rotatably installed on the stirring frame 21, one end of the sleeve 35 is rotatably mounted on the middle upright post 211 through a bearing, the other end of the sleeve 35 is rotatably mounted on the side upright post 214 through a bearing and penetrates through the side upright post 214, the annular groove 13 is formed in the inner wall side of the aeration tank 1, the aeration tank 1 is integrally provided with the annular rack 14 on the bottom wall of the annular groove 13, the gear 354 is positioned in the annular groove 13 and is meshed and connected with the annular rack 14, through the arrangement, when the stirring frame 21 rotates, the sleeve 35 can also rotate relative to the aeration pipe 31, so that the plurality of mud blocking strips 352 can uninterruptedly rotate outside the aeration pipe 31, and when the mud blocking strips 352 rotate around the aeration pipe 31, the aeration holes 311 can be intermittently blocked, the probability that activated sludge is deposited into the aeration holes 311 is reduced, meanwhile, the activated sludge deposited on the aeration pipe 31 can be cleaned, and the probability that the aeration holes 311 are blocked is reduced; and the purpose of intermittent aeration can be achieved, the condition of over intense aeration is avoided, and the probability of generating foam is reduced.
One side that aeration pipe 31 was kept away from to every fender mud strip 352 all is fixed with a plurality of stirring vane 353, a plurality of stirring vane 353 equidistance distribute on the length direction of fender mud strip 352, through setting up like this, when the relative aeration pipe 31 of sleeve pipe 35 rotates, stirring vane 353 can enough be rotatory around the center post, can rotate around aeration pipe 31 again, thereby make different horizontal positions, the sewage homoenergetic of different water level height can obtain the intensive mixing, stirring vane 353 and stirring frame 21, aeration pipe 31 mutually supports, it is more even to make the mixed liquid in aeration tank 1, improve sewage treatment efficiency, can improve the activity of active sludge and microorganism again, reduce the probability that produces the foam.
The lower side surface of the upper cross column 212 is lower than the liquid level in the aeration tank 1, and the upper side surface of the upper cross column 212 is higher than the liquid level in the aeration tank 1, so that when the upper cross column 212 rotates around the middle upright column 211, the upper cross column 212 can push away foams on the water surface and break small parts of foams, the stability of the gathered foams is damaged, and the probability of forming a large amount of stable foams is reduced.
Go up still to install watering mechanism 4 on the spreader 212, watering mechanism 4 includes water suction pump 41 and sprinkler bead 42, water suction pump 41 and sprinkler bead 42 all pass through bolt fixed mounting at the upper left side of last spreader 212, install portable power source in the water suction pump 41, portable power source provides power for water suction pump 41, water intake end intercommunication of water suction pump 41 has inlet tube 43, inlet tube 43 passes through the staple bolt to be fixed on stirring frame 21 and extends to under the liquid level in the aeration tank 1, water outlet end intercommunication of water suction pump 41 has outlet pipe 44, the one end and the sprinkler bead 42 intercommunication of water suction pump 41 are kept away from to outlet pipe 44, through setting up like this, the water pump can be inhaled the water in the aeration tank 1 and come up, then spout on the liquid level through sprinkler bead 42, eliminate remaining foam on the liquid level, further reduce the foam on the water level in the aeration tank 1.
The quantity of sprinkler bead 42 is two in this implementation, two sprinkler beads 42 set up about last rotation post 216 central symmetry, the one end intercommunication that water outlet pipe 44 kept away from water suction pump 41 has two branch pipes 45, two branch pipes 45 communicate with two sprinkler beads 42 respectively, sprinkler bead 42 is rectangular shape structure, sprinkler bead 42 inclines in the horizontal plane setting, and the liquid level in aeration tank 1 is faced towards to sprinkler bead 42's water spray direction, when sprinkler bead 42 rotates along with stirring frame 21, the water spray scope that sprinkler bead 42 passes through can cover the liquid level of whole aeration tank 1, improve the effect of eliminating the foam.
The working principle of the technical scheme is as follows: when the motor 22 rotates, the motor 22 drives the stirring frame 21 to rotate, and the stirring frame 21 drives all the aeration pipes 31 to rotate around the central upright post 211, so that the aeration range is enlarged, the aeration in the aeration tank 1 is more uniform, sufficient dissolved oxygen is reserved in the aeration tank 1, the activity of activated sludge and the activity of various microorganisms are improved, and the probability of generating foam is reduced; meanwhile, the side upright columns 214 are attached to the inner wall of the aeration tank 1 to move, the lower cross column 213 is attached to the bottom wall of the aeration tank 1 to move, so that the activated sludge attached to the inner wall of the aeration tank 1 is scraped, and the activity of the activated sludge can be improved; meanwhile, the sleeve 35 can rotate relative to the aeration pipe 31 through the matching effect of the gear 354 and the annular rack 14, so that the plurality of mud blocking strips 352 can rotate outside the aeration pipe 31 uninterruptedly, and when the mud blocking strips 352 rotate around the aeration pipe 31, the aeration holes 311 can be blocked intermittently, the probability that the activated sludge is deposited in the aeration holes 311 is reduced, the activated sludge deposited on the aeration pipe 31 can be cleaned, the probability that the aeration holes 311 are blocked is reduced, the purpose of intermittent aeration can be achieved, the condition that the aeration is too severe is avoided, and the probability of generating foams is reduced; meanwhile, the sleeve 35 can drive the stirring blade 353 to rotate, and the stirring blade 353 can rotate around the central column and rotate around the aeration pipe 31, so that sewage at different horizontal positions and different water level heights can be fully mixed, the mixed liquid in the aeration tank 1 is more uniform, the sewage treatment efficiency is improved, the activity of activated sludge and microorganisms can be improved, and the probability of generating foam is reduced; meanwhile, the water pump can suck up the water in the aeration tank 1, then the water is sprayed onto the liquid level through the water spray head 42, the stirring frame 21 drives the water spray head 42 to rotate, the water spray range passed by the water spray head 42 covers the whole liquid level of the aeration tank 1, residual foam on the liquid level can be eliminated, and the foam on the water level in the aeration tank 1 is further reduced.
The town sewage treatment device provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The town sewage treatment device comprises an aeration tank and is characterized in that: the upside of aeration tank is provided with the mounting panel, many support columns of fixedly connected with between mounting panel and the aeration tank, install rabbling mechanism and aeration mechanism in the aeration tank, rabbling mechanism is including rotating the stirring frame and the drive stirring frame pivoted motor of installing in the aeration tank, motor fixed mounting is on the mounting panel, aeration mechanism includes many aeration pipes and provides the aeration machine of air supply for the aeration pipe, aeration machine fixed mounting is on the mounting panel, aeration pipe fixed mounting is on the stirring frame.
2. The town sewage treatment device according to claim 1, wherein: the stirring frame comprises a middle upright post, an upper transverse post, a lower transverse post and two side upright posts which are integrally formed, the middle upright post is located at the center of the aeration tank, the two side upright posts are located on the left side and the right side of the middle upright post respectively, one side, far away from the middle upright post, of each side upright post is always in contact with the side wall of the aeration tank, the upper transverse post and the lower transverse post are located on the upper side and the lower side of the middle upright post respectively, and the bottom side of the lower transverse post is always in contact with the bottom wall of the aeration tank.
3. The town sewage treatment device according to claim 2, wherein: the aeration tank is characterized in that a lower rotating column is fixed on the lower transverse column, the lower rotating column is rotatably installed on the bottom wall of the aeration tank, an upper rotating column is fixed on the upper transverse column, the upper rotating column is rotatably installed on the installation plate, a first belt pulley is fixed on the upper rotating column, an output shaft of the motor penetrates through the installation plate and is fixed with a second belt pulley, and a belt is in transmission connection between the second belt pulley and the first belt pulley.
4. The town sewage treatment device according to claim 3, wherein: the one end fixed mounting of aeration pipe is in the center pillar, the other end of aeration pipe extends to side stand department, and many aeration pipe evenly distributed is in the center pillar both sides, be equipped with the air guide pipeline in the center pillar, air guide pipeline and all aeration pipe intercommunications, the upper end of air guide pipeline extends to in the column of rotating, the top of going up the column of rotating is rotated and is connected with rotary joint, just rotary joint and air guide pipeline intercommunication, rotary joint fixed mounting is on the mounting panel, the one end intercommunication that air guide pipeline was kept away from to rotary joint has the gas-supply pipe, rotary joint's one end and aeration machine intercommunication are kept away from to the gas-supply pipe.
5. The town sewage treatment device according to claim 4, wherein: the side wall of the aeration pipe is provided with a plurality of groups of aeration holes, each group of aeration holes are linearly arranged and are arranged along the length direction of the aeration pipe, the plurality of groups of aeration holes are distributed on the aeration pipe in a circumferential array structure, a sleeve is sleeved outside the aeration pipe, the inner diameter of the sleeve is equal to the outer diameter of the aeration pipe, the side wall of the sleeve is provided with a plurality of air outlets, the plurality of air outlets are distributed on the sleeve in a circumferential array structure, a mud blocking strip is arranged between every two adjacent air outlets, the mud blocking strip and the air outlets are both arranged along the length direction of the aeration pipe, and each mud blocking strip or each air outlet can cover one group of aeration holes; the sleeve pipe rotates and is installed on the stirring frame, and when the stirring frame rotates, the sleeve pipe can rotate relative to the aeration pipe.
6. The town sewage treatment device according to claim 5, wherein: one end of the sleeve is rotatably installed on the middle upright post, the other end of the sleeve is rotatably installed on the side upright post and penetrates through the side upright post, a gear is fixed at one end of the sleeve, which is far away from the middle upright post, an annular groove is formed in the aeration tank, an annular rack is arranged in the annular groove of the aeration tank, and the gear is located in the annular groove and is meshed with the annular rack.
7. The town sewage treatment device according to claim 5, wherein: and a plurality of stirring blades are fixed on one side of each mud blocking strip, which is far away from the aerator pipe, and the stirring blades are distributed in the length direction of the mud blocking strips at equal intervals.
8. The town sewage treatment plant according to any one of claims 2-7, wherein: the lower side surface of the upper transverse column is lower than the liquid level in the aeration tank, and the upper side surface of the upper transverse column is higher than the liquid level in the aeration tank.
9. The town sewage treatment device according to claim 8, wherein: the water spraying mechanism is installed on the upper transverse column and comprises a water suction pump and a water spraying head, the water suction pump and the water spraying head are fixedly installed on the upper transverse column, the water inlet end of the water suction pump is communicated with a water inlet pipe, the water inlet pipe is fixed on the stirring frame and extends to the position below the liquid level in the aeration tank, the water outlet end of the water suction pump is communicated with a water outlet pipe, and the water outlet pipe is communicated with the water spraying head.
10. The town sewage treatment device according to claim 9, wherein: the number of the water spraying heads is two, and the two water spraying heads are arranged in a central symmetry mode around the upper rotating column; the sprinkler bead is the elongated structure, the water spray direction of sprinkler bead is towards the liquid level in the aeration tank, when the sprinkler bead rotates along with the stirring frame, the water spray scope that the sprinkler bead passes covers the liquid level of whole aeration tank.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117602731A (en) * | 2023-12-21 | 2024-02-27 | 安徽三番环保工程有限公司 | Sewage treatment aeration tank |
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| CN113800656B (en) | 2023-08-01 |
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