CN120573904A - A biological denitrification and phosphorus removal MBR sewage treatment system and its treatment process - Google Patents
A biological denitrification and phosphorus removal MBR sewage treatment system and its treatment processInfo
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- CN120573904A CN120573904A CN202510997834.2A CN202510997834A CN120573904A CN 120573904 A CN120573904 A CN 120573904A CN 202510997834 A CN202510997834 A CN 202510997834A CN 120573904 A CN120573904 A CN 120573904A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2303/04—Disinfection
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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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses a biological denitrification and dephosphorization MBR sewage treatment system and a treatment process thereof, wherein the process steps are as follows, 1) pretreatment; 2) anaerobic tank treatment, 3) anoxic tank treatment, 4) aerobic tank treatment, 5) MBR membrane tank treatment, wherein sewage enters the box body through a water inlet, a moving mechanism drives an aeration mechanism and a scum cleaning mechanism to move, the aeration mechanism carries out aeration treatment on the sewage in the box body, when the aeration mechanism blows out gas into the sewage through a bronchus, bubbles are scattered by spiral blades, the contact area of the gas and liquid is further increased, the aeration effect is enhanced, scum after aeration treatment rises, the scum cleaning mechanism carries out multiple scraping on the scum floating after aeration, the scum after scraping is collected and sent out of the box body, the impurity suspended in the middle layer of the sewage is salvaged, and the sewage after scum cleaning is carried out enters the next treatment procedure through a water outlet.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a biological denitrification and dephosphorization MBR sewage treatment system and a biological denitrification and dephosphorization MBR sewage treatment process.
Background
Biological nitrogen and phosphorus removal MBR sewage treatment technology is a high-efficiency sewage treatment technology combining a traditional activated sludge method with a membrane separation technology, has a synchronous nitrogen and phosphorus removal function, sewage is degraded through nitrifying bacteria in an aerobic tank, an aeration pipeline is usually fixed at the bottom of the aerobic tank in the existing aerobic tank technology, gas cannot be efficiently and quickly fused with sewage during aeration, in the aeration process, viscous substances secreted by microorganisms are easy to form foam, and sludge particles are adsorbed to form scum, if the scum is not cleaned, the scum can be adhered to the surface of subsequent membrane treatment, membrane holes are blocked, the cleaning frequency is increased, and finally the sewage treatment effect is affected.
Through the search, the device realizes the fusion between the activated sludge and the sewage through a sedimentation tank, and then realizes the full mixing between the activated sludge and the sewage in an anaerobic tank through a driving mechanism, and the device does not provide aeration and a deslagging mechanism in an aerobic tank, so that the sewage treatment efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a biological denitrification and dephosphorization MBR sewage treatment system and a treatment process thereof, wherein when an aeration mechanism blows out gas into sewage through a bronchus, bubbles can be scattered by spiral blades, the contact area of the gas and liquid is further increased, the aeration effect is enhanced, scum cleaning mechanism scrapes scum floating up after aeration for a plurality of times, the scum after scraping is collected and sent out of a box body, and impurities suspended in the middle layer of the sewage are salvaged, so that scum cleaning work is completed.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A biological denitrification and dephosphorization MBR sewage treatment system comprises a pretreatment tank, an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank, wherein the pretreatment tank, the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank are sequentially arranged.
A treatment process of biological denitrification and dephosphorization MBR sewage treatment system comprises the following specific steps:
1) A pretreatment tank, wherein coarse gratings with gaps of 20-50 mm are arranged, large-particle sundries such as plastics, branches and the like are filtered, fine gratings with gaps of 1-5 mm are arranged, fine suspended matters such as fibers, hair and the like are filtered, membrane winding and blocking are prevented, the pH value of sewage is controlled to be in the range of 6.5-8.5 by adding HCl or alkali NaOH, a low-speed submersible stirrer is adopted, the stirring rotating speed is set to be 50-60 rpm, and sludge deposition is prevented;
2) Anaerobic pool treatment, which is to ensure that the hydraulic retention time HRT is 1-3 hours, the dissolved oxygen concentration is less than 0.2 mg/L, the strict anaerobic environment is ensured, the sludge concentration is kept to be 3,000-5,000 mg/L, the sludge floats upwards easily when the sludge is too high, the phosphorus release is insufficient when the sludge is too low, the low-speed mechanical stirring is adopted, the stirring rotating speed is set to be 20-30 rpm, the sludge deposition is prevented, and the excessive stirring is avoided, but the introduction of oxygen is avoided;
3) The anoxic tank treatment is used for denitrification, improves the denitrification efficiency of a system, ensures that the hydraulic retention time HRT is 2-4 hours, ensures that the concentration of dissolved oxygen is less than 0.5 mg/L, ensures a micro anoxic environment, adopts low-speed mechanical stirring, and sets the stirring rotating speed to be 10-20 rpm to prevent denitrification produced gas from floating upwards after sludge deposition;
4) The treatment of an aerobic tank, wherein the hydraulic retention time HRT is guaranteed to be 4-8 hours, the concentration of dissolved oxygen is guaranteed to be 2-4 mg/L, aeration is carried out in the aerobic tank through an aeration mechanism, a motor II drives a transmission shaft I to rotate, the transmission shaft I drives a bevel gear I to rotate, the bevel gear I is meshed with a bevel gear II, the bevel gear II drives a transmission shaft II to rotate, the transmission shaft II drives a bevel gear III, the bevel gear III is meshed with a bevel gear IV, the bevel gear IV drives a connecting shaft I to rotate, the connecting shaft I drives a bronchus and a helical blade to rotate, when gas is blown out into sewage through the bronchus, bubbles are scattered by the helical blade, the contact area of the gas and the liquid is further increased, the aeration effect is enhanced, the pore diameter of an air hole arranged on the bronchus is less than or equal to 2mm, the oxygen utilization rate is improved to 30% -40%, and the operation period is 5min after aeration is 15 min;
The scum generated after aeration is cleaned through a scum cleaning mechanism, a travelling mechanism in the scum cleaning mechanism controls a first scraping mechanism and a second scraping mechanism to scrape, a motor V controlled by the travelling mechanism controls a gear III to rotate, the gear III is meshed with a rack III, the rack III is fixed on a supporting plate, the gear III drives a bracket to move along the rack III, a motor VI drives a worm to rotate, the worm is meshed with a worm wheel, the worm wheel is internally and centrally meshed with a threaded rod, the worm wheel rotates to drive the threaded rod to lift, the threaded rod lifts to drive a lifting plate II to lift, the lifting plate drives an adjusting mechanism to move and lift, a motor VIII of the adjusting mechanism controls a connecting rod I to rotate, the connecting rod I drives a connecting rod IV to swing through a connecting rod II and the connecting rod III, the connecting rod IV drives the motor IX to swing with a connecting shaft II, and the connecting shaft II adjusts the positions of the first scraping mechanism and the second scraping mechanism;
The scum salvaging mechanism on the first scraping mechanism controls the rotation of a screw rod II through a motor VII, the screw rod II drives a movable seat to move, the movable seat drives an angle stepping motor I to move, the angle stepping motor I controls a connecting plate I to rotate, the connecting plate I drives a stranded wire wheel to swing, the stranded wire wheel controls the winding and unwinding of a towing wire, the towing wire drives a net bag at the lower part, when the scum salvaging mechanism is driven to move to one side of a box body through a travelling mechanism, the net bag salvages and cleans suspended impurities in sewage, the problem that a large amount of suspended impurities exist at the lower layer in the sewage after the upper impurities in the sewage are scraped is avoided, so that the cleaning efficiency is more efficient;
The motor X and the motor XI of the second scraping mechanism control the angle between the scraping plate III and the screen plate, so that two groups of scraping plates and the screen plate form an included angle, the efficiency of scraping and cleaning scum is improved, the angle stepping motor IV controls the scraping plate IV to swing downwards, the scraping plate IV forms a height difference with the scraping plate II and the scraping plate III at the front end, scum which cannot be scraped by the scraping plate II and the scraping plate III is scraped again, the overflow plate arranged on the scraping plate IV prevents scum from passing on the premise of ensuring water flow, the scraping efficiency is further improved, and the first scraping mechanism and the second scraping mechanism carry out reciprocating scraping on floating scum in sewage for 35-50min at the speed of 25-60rpm to the scum conveying mechanism;
The motor III of the scum conveying mechanism controls the screw rod I to rotate, the screw rod I drives the lifting plate I to lift, the screw rod I is lifted to a proper position according to the height of sewage in the box body, the motor IV controls the screw conveyer to rotate, the scraping groove collects scum at the upper part of the sewage and then is sent out by the screw conveyer, the electric push rod pulls the push plate backwards in the scum collecting process, the push plate drives the rack II backwards, the rack II is meshed with the half gear, the half gear drives the sliding cover to rotate backwards, the sliding cover is opened to collect scum, the electric push rod pushes the push plate forwards in the scum conveying process, the push plate drives the rack II forwards, the rack II is meshed with the half gear, the half gear drives the sliding cover to slide forwards, the sliding cover is closed, the scum cannot leak outwards in the conveying process, and large-area scum cleaning is completed;
5) MBR membrane pool treatment, namely thoroughly removing suspended matters and bacteria through a microfiltration membrane with the aperture of 0.01-0.4 mu m, degrading residual organic matters, setting the membrane flux to 15-25L/(m2.h), setting the aeration intensity to 0.3-0.5 Nm3/(m2.h), stopping 2-3 min every 8-12 min, sterilizing by adopting UV (ultraviolet) at the dosage of 30-40 mJ/cm < 2 >, and then adding sodium hypochlorite with the dosage of 5-10 mg/L, thereby completing the sewage treatment process.
The aerobic tank in the step 4) comprises a water inlet, a tank body, a moving mechanism, an aeration mechanism, a scum cleaning mechanism, a protective cover I and a water outlet, wherein the water inlet is arranged at the front end of the tank body, the water outlet is arranged at the rear end of the tank body, the moving mechanism is arranged at one side of the tank body, the protective cover I is fixed at two sides of the tank body, the moving mechanism is arranged in the protective cover I, the scum cleaning mechanism and the aeration mechanism are arranged in the tank body, the scum cleaning mechanism is arranged at the upper layer in the tank body, the aeration mechanism is arranged at the lower layer in the tank body, the scum cleaning mechanism and the aeration mechanism are connected with the moving mechanism, sewage enters the tank body through the water inlet, the moving mechanism drives the aeration mechanism and the scum cleaning mechanism to move, the aeration mechanism carries out aeration treatment on sewage in the tank body, scum after aeration treatment is lifted, scum in the sewage after the scum cleaning is completed through the scum cleaning mechanism, and the sewage enters the next treatment procedure through the water outlet.
The movable mechanism comprises a motor I, a motor mounting frame I, a rocker arm, a sliding shaft, a sliding groove plate and a connecting frame, wherein the motor I is mounted on the motor mounting frame I, the motor mounting frame I is fixed on the outer side of a box body, the output end of the motor I is connected with one end of the rocker arm, the other end of the rocker arm is provided with the sliding shaft, the sliding shaft is simultaneously arranged in the sliding groove plate, the sliding shaft is in sliding connection with the sliding groove plate, the sliding groove plate is fixedly connected with the connecting block, the connecting block is fixedly connected with a rack I on the lower side, the rack I is arranged in the sliding rail I, the sliding rail I is fixed on the outer side of the box body, the connecting frame is fixedly connected with the connecting frame, the connecting frame is arranged in the box body, the upper group of racks I and the lower group of racks I are simultaneously meshed with a gear I, the gear I is rotationally connected with a positioning shaft I, the positioning shaft I is fixed on the outer side of the box body, the motor I controls the rocker arm to rotate, the rocker arm drives the sliding shaft to slide in the sliding groove plate to move, the sliding groove plate is simultaneously, the lower side racks I are driven by the connecting block to move, the upper group of racks I and lower group I are simultaneously meshed with the gear I, the upper group I and lower group I are driven to move relative to each other.
The aeration mechanism comprises a movable frame, a motor II, a gas pipe, a connecting shaft I, a bronchus, a helical blade and a supporting frame; the utility model provides a sewage aeration device, including a connecting frame, a motor II output is connected transmission shaft I, helical gear I sets up on transmission shaft I, helical gear I meshing helical gear II, motor II, transmission shaft I, helical gear II all set up inside buckler I, helical gear II sets up in transmission shaft II one end, the transmission shaft II other end is equipped with helical gear III, helical gear III meshing helical gear IV, helical gear III and helical gear IV set up inside buckler II, helical gear IV sets up on connecting axle I, the connecting axle sets up in gas-supply pipe upper portion, still be equipped with bronchus and helical blade on the connecting axle simultaneously, helical blade sets up simultaneously in the support frame, helical blade rotates with the support frame to be connected, the support frame is fixed in protection casing II, protection casing II is fixed on the removal frame, transmission shaft II passes protection casing II and rotates with protection casing II to be connected, motor II drives transmission shaft I and rotates, helical gear I meshes helical gear II, II drives helical gear III and drives helical gear III, helical gear III drives helical gear IV and connect axle I rotates, connecting axle I, connecting axle drive bronchus and helical blade rotates, when the gas passes through the bronchus, the extension to the helical blade, when the extension is blown out to the helical blade, the extension is blown out to the air, the aeration effect can be further blown out to the bubble, the aeration device is increased.
The scum cleaning mechanism comprises a supporting plate, a water pump, a water pipe, a scum conveying mechanism, a travelling mechanism, a scum salvaging mechanism, a first scraping mechanism, an adjusting mechanism and a second scraping mechanism, wherein the supporting plate is fixedly connected with a connecting frame, the water pump is fixed on the upper portion of the supporting plate, the water pump is connected with the water pipe, the scum conveying mechanism is arranged on the lower portion of the supporting plate, two groups of travelling mechanisms are arranged on two sides of the supporting plate, the adjusting mechanism is arranged on the lower portion of the travelling mechanism, the two groups of adjusting mechanisms are respectively connected with the second scraping mechanism and the first scraping mechanism, the scum salvaging mechanism is arranged on the upper portion of the first scraping mechanism, the angle of the second scraping mechanism is adjusted through the adjusting mechanism of the scum cleaning mechanism, the second scraping mechanism scrapes large-area scum on the upper portion of sewage to one side, the scum is collected and scraped through the scum conveying mechanism, large-area scum is cleaned, residual scum in the sewage is scraped through the first scraping mechanism, and impurities suspended in the liquid are cleaned through the scum salvaging mechanism in the process, and the scum cleaning work is more efficient.
The scum conveying mechanism comprises a motor III, a lifting plate I, a motor IV, a scraping groove, a packing auger, a sliding cover support, a sliding cover and an electric push rod; the motor III is arranged on the supporting plate, the output end of the motor III is connected with the lead screw I, the lifting plate I is arranged on the lead screw I, the lifting plate I is connected with the lead screw I in a matched manner, two groups of limiting upright posts I are arranged at the lower part of the supporting plate, the limiting upright posts I are in sliding connection with the lifting plate I, two groups of scraping grooves are formed in the lower part of the lifting plate I, the motor IV is arranged on one side of the scraping grooves, the output end of the motor IV is connected with the auger, the auger is integrally arranged in the scraping grooves, a plurality of groups of sliding cover supports are arranged on the scraping grooves, the sliding cover supports are in sliding connection with the sliding cover, a half gear is fixed on the sliding cover, the half gear is meshed with the rack II, one end of the rack II is provided with a push plate, the push plate is connected with an electric push rod, the electric push plate is fixed on the lifting plate I, the electric push plate I controls the lead screw I to rotate, the lifting plate I drives the lifting plate I to lift, the electric push plate II drives the lifting plate I to move to a proper position according to the height of sewage in the box, the electric push rod in the collection process pulls the push plate backwards, the push plate II drives the rack II to mesh with the half gear, the half gear is meshed with the half gear in the sliding cover in the sliding process, the half gear is meshed with the sliding cover, the half gear is driven to be opened, and is opened when the electric push and pushed forward in the pushing the push rod is pushed forward and pushed forward.
The running mechanism comprises a motor V, a support, a sliding rail II, a motor VI, a limit upright post II and a lifting plate II, wherein the motor V is arranged at the front end of the support, the output end of the motor V is connected with two groups of gears III, the gears III are simultaneously arranged in the support, the gears III are meshed with the racks III, the racks III are fixed on the support, the sliding rail II is arranged on the outer side of the racks III and is fixed on the support, the sliding rail II is in sliding connection with the support, the motor VI is arranged on one side of the support, the output end of the motor VI is connected with a worm, the worm is meshed with a worm wheel, the worm wheel is rotationally connected with the support, a threaded rod is installed in central meshing mode inside the worm wheel, the threaded rod penetrates through the support to be connected with the lifting plate II, the limit upright post II is arranged at the other end of the support, the limit upright post II is slidingly connected with the support, the limit upright post II penetrates through the support to be connected with the lifting plate II, the motor V controls the gears III to rotate, the gears III are meshed with the racks III are fixed on the support, the racks III drive the racks III to move along the racks III, the racks II are limited, the racks VI are limited, the position of the worms are limited, the worm are driven by the worm wheel are, the worm wheel is driven to rotate, the worm wheel is to rotate, the worm is to rotate, and the worm wheel is to rotate and is driven to be driven to lift, to rotate, and to be.
The scum salvaging mechanism comprises a motor VII, a moving seat, an angle stepping motor I, a wire twisting wheel, a wire pulling and a net bag, wherein the motor VII is arranged at one end of a limiting sliding groove, two groups of limiting sliding grooves are formed and fixed on a lifting plate II, a lead screw II is arranged in the limiting sliding groove and is connected with the moving seat in a matched mode, the angle stepping motor I is arranged at the upper part of the moving seat, the output end of the angle stepping motor I is connected with the connecting plate I, the wire twisting wheel is arranged at the upper part of the connecting plate I, the wire pulling is wound on the wire twisting wheel, the lower part of the wire pulling is connected with the net bag, the motor VII controls the lead screw II to rotate, the lead screw II drives the moving seat to move, the moving seat drives the angle stepping motor I to move, the connecting plate I drives the wire twisting wheel to swing, the wire twisting wheel drives the net bag at the lower part to move towards one side of the box, and when the net bag at the lower part is driven by the travelling mechanism, so that the net bag salvages and cleans suspended impurities in sewage, and the upper impurities in the sewage after the impurities in the sewage are scraped, a large number of suspended impurities in the sewage are avoided, and the cleaning efficiency is higher.
The adjusting mechanism comprises a motor VIII, a limiting rod, a connecting rod, a motor IX and a connecting shaft II, wherein the motor VIII is arranged on a lifting plate II, the output end of the motor VIII is connected with a connecting rod I, the connecting rod II, the connecting rod III and the connecting rod IV are sequentially connected in a rotating mode through a pin shaft, the limiting rod is connected with the lifting plate II in a rotating mode, the limiting rod is parallel to the connecting rod IV, the limiting rod is connected with the connecting rod IV in a rotating mode through the connecting rod, the upper portion of the connecting rod is provided with the motor IX, the output end of the motor IX is connected with the connecting shaft II, the motor VIII controls the connecting rod I to rotate, the connecting rod I drives the connecting rod IV to swing through the connecting rod II and the connecting rod III, the connecting rod IV drives the connecting rod to swing, the connecting rod IX and the connecting shaft II to swing, and the limiting rod guarantees the swing range of the connecting rod IV.
The first scraping mechanism comprises a positioning frame, a scraping plate I, an angle stepping motor II, a spray pipe and an angle stepping motor III, wherein the first scraping mechanism is connected with an adjusting mechanism on one side of a water outlet, the positioning frame is fixed at the lower part of a connecting shaft II, the scraping plate I is arranged in the positioning frame and is connected with the positioning frame in a rotating mode, the angle stepping motor II is arranged at the front end of the upper part of the positioning frame, the output end of the angle stepping motor II is connected with a gear IV, the gear IV is meshed with a gear V, the gear V is connected with the scraping plate II, the waterproof cover IV is fixed at the front end of the positioning frame, the angle stepping motor II, the gear IV and the gear V are all positioned in the waterproof cover IV, the waterproof cover III is fixed at the rear end of the positioning frame, the angle stepping motor III is fixed in the waterproof cover III, the output end of the angle stepping motor III is connected with a gear VI, the gear VI is meshed with the gear VII, the gear VII is connected with the spray pipe, the spray pipe is in a rotating mode, the spray pipe is connected with the positioning frame at the same time, the spray pipe is connected with the spray pipe, the angle stepping motor II drives the gear IV to rotate, the gear IV drives the scraping plate I to tilt angle according to the needs, the gear IV drives the rotation, the gear V drives the scraping plate I to rotate, the angle to the speed, the gear V drives the gear VI to rotate, the speed, the gear VII drives the gear VII to rotate the waterproof cover to the water pipe to the surface to be cleaned, and the scum I is adhered to the surface.
The second scraping mechanism comprises a scraping plate II, a motor X, a scraping plate III, a reinforcing connecting rod, a motor XI, a screen plate I, a screen plate II, an angle stepping motor IV, a scraping plate IV and an overflow plate, wherein the second scraping mechanism is connected with an adjusting mechanism on one side of a water inlet, the scraping plate II is fixed on the lower part of a connecting shaft II, the motor mounting frame II is fixed on the upper part of the scraping plate II, the motor X is arranged in the motor mounting frame II, the output end of the motor X is connected with a gear VIII, the gear VIII is meshed with the gear IX, the gear IX is connected with the scraping plate III, the scraping plate III is rotationally connected with the scraping plate II, the reinforcing connecting rod is arranged between the scraping plate III and the scraping plate II, the motor mounting frame III is fixed on the upper part of the scraping plate III, the motor XI is arranged in the motor mounting frame III, the output end of the motor XI is connected with the gear X, the gear X is meshed with the gear XI, the gear XI is connected with the screen plate I, the screen plate I is rotationally connected with the scraping plate III, a fixed shaft is fixed on the lower end of the scraping plate III, a bevel gear V is fixed on the fixed, the bevel gear V is meshed with the bevel gear VI, the bevel gear VI is arranged in the waterproof cover V, the waterproof cover V is fixed on the lower part of the waterproof cover, the bevel gear II is connected with the bevel gear II, the mesh II is connected with the screen plate III, the bevel gear II is rotationally connected with the screen III, the two sets of the bevel plates IV are fixedly connected with the two sides of the bevel plates IV, the two sides of the bevel plates IV are fixedly connected with the angle III, the two sides of the angle stepping plates IV are fixedly connected with the upper end of the connection plate IV, and the two sides of the connection plate III are fixedly connected with the angle III, and the two sides and the V is fixedly connected with the angle and the angle III.
Compared with the prior art, the invention has the beneficial effects that:
1) The moving mechanism drives the floating slag cleaning mechanism to move oppositely, the floating slag cleaning mechanism can clean floating slag on the other side of the floating slag cleaning mechanism when the floating slag cleaning mechanism carries out aeration treatment, the whole working efficiency is improved, when the air is blown out into sewage by the aeration mechanism through a bronchus, bubbles can be scattered by the spiral blades, the contact area of the air and liquid is further increased, the aeration effect is enhanced, the floating slag cleaning mechanism drives the floating slag cleaning mechanism to move integrally in the box body through the moving mechanism, the angle of the first scraping mechanism and the angle of the second scraping mechanism are regulated by the regulating mechanism, the inclined angle of the scraping plate I is regulated by the first scraping mechanism according to the requirement, the floating slag adhered to the surface of the scraping plate I is washed by the water spraying pipe, the included angle of the scraping plate III and the screen is controlled by the motor X and the motor XI, the included angle of the two groups of scraping plates is formed by the second scraping mechanism, the efficiency of scraping slag cleaning is improved, the scraping plate IV and the scraping plates II and III at the front end are formed to scrape the floating slag again, and the floating slag passing through is blocked on the premise that the water flow is ensured to pass, and the scraping efficiency is further improved;
2) The scum salvaging mechanism salvages and cleans suspended impurities in the sewage, so that the problem that a large amount of suspended impurities exist in the lower layer of the sewage after the upper impurities in the sewage are scraped off is avoided, and the cleaning efficiency is more efficient; the scum conveying mechanism is lifted to a proper position according to the height of sewage in the box body, the scum on the upper part of the sewage is collected by the scraping groove and then sent out by the auger, the electric push rod pulls the push plate backwards in the process of collecting the scum, the push plate drives the rack II backwards, the rack II is meshed with the half gear, the half gear drives the sliding cover to rotate backwards, the sliding cover is opened to collect the scum, the electric push rod pushes the push plate forwards in the process of conveying the scum, the push plate drives the rack II forwards, the rack II is meshed with the half gear, the half gear drives the sliding cover to slide forwards, and the sliding cover is closed to ensure that the scum cannot leak in the conveying process;
3) Through the angle of motor X and motor XI control scraper blade III and otter board, make two sets of scrapers and otter board form the contained angle, improve the efficiency of scraping clearance dross, through angle stepper motor IV control scraper blade IV downward swing, scraper blade II of scraper blade IV and front end, scraper blade III forms the difference in height, scrape the dross that scraper blade II and scraper blade III failed to strike off again, the overflow plate that sets up on the scraper blade IV stops the dross to pass through under the prerequisite of guaranteeing rivers and pass through, further improvement scrapes efficiency, the second scrapes the mechanism and scrapes the dross to one side when moving forward, the dross conveying mechanism is forward with the dross collection after scraping and carry out the box, accomplish the clearance dross work.
Drawings
FIG. 1 is a schematic diagram 1 of a biological denitrification and dephosphorization MBR sewage treatment system;
FIG. 2 is a schematic diagram 2 of a biological denitrification and dephosphorization MBR sewage treatment system structure of the invention;
FIG. 3 is a schematic view of the moving mechanism of FIG. 2;
FIG. 4 is a schematic view of the aeration mechanism of FIG. 2;
FIG. 5 is a schematic view of the scum cleaning mechanism of FIG. 2, shown in FIG. 1;
FIG. 6 is a schematic view of the dross conveying mechanism of FIG. 5;
FIG. 7 is a schematic view of the travel mechanism of FIG. 5;
FIG. 8 is a schematic diagram of the scum salvaging mechanism of FIG. 5;
FIG. 9 is a schematic view of the adjustment mechanism of FIG. 5;
FIG. 10 is a schematic view of the first scraping mechanism of FIG. 5;
FIG. 11 is a schematic view of the scum cleaning mechanism of FIG. 2;
Fig. 12 is a schematic view of the second scraping mechanism of fig. 11, shown in fig. 1;
fig. 13 is a schematic view of the second scraping mechanism of fig. 11;
In the figure, 11 parts of water inlet, 12 parts of box body, 13 parts of moving mechanism, 14 parts of aeration mechanism, 15 parts of scum cleaning mechanism, 16 parts of protective cover I, 17 parts of water outlet;
101. 102, a motor I, 103, a rocker arm, 104, a sliding shaft, 105, a sliding groove plate, 106, a connecting block, 107, a rack I, 108, a gear I, 109, a positioning shaft I, 110, a sliding rail I, 111 and a connecting frame;
201. 202, a motor II, 203, a transmission shaft I, 204, a bevel gear I, 205, a bevel gear II, 206, a transmission shaft II, 207, a bevel gear III, 208, a bevel gear IV, 209, a gas pipe, 210, a connecting shaft I, 211, a bronchus, 212, a helical blade, 213, a support frame, 214, a waterproof cover I, 215, a waterproof cover II, 216 and a protective cover II;
301. The device comprises a supporting plate, 302, a water pump, 303, a water pipe, 304, a scum conveying mechanism, 305, a travelling mechanism, 306, a scum salvaging mechanism, 307, a first scraping mechanism, 308, an adjusting mechanism, 309 and a second scraping mechanism;
3101. motor III, 3102, screw I, 3103, limit upright I, 3104, lifting plate I, 3105, motor IV, 3106, scraping groove, 3107, auger, 3108, sliding cover support, 3109, sliding cover, 3110, half gear, 3111, rack II, 3112, push plate, 3113, electric push rod;
3201. motor V, 3202, support, 3203, gear III, 3204, rack III, 3205, slide rail II, 3206, motor VI, 3207, worm, 3208, worm gear, 3209, threaded rod, 3210, limit upright post II, 3211 and lifting plate II;
3301. The device comprises a motor VII, a limiting chute, a screw rod II, a moving seat 3304, an angle stepping motor I, a connecting plate I, a wire twisting wheel 3306, a wire pulling wheel 3308, a wire pulling wheel 3309 and a net bag;
3401. 3402, a scraper I, 3403, an angle stepping motor II, 3404, a gear IV, 3405, a gear V, 3406, a water spray pipe, 3407, an angle stepping motor III, 3408, a gear VI, 3409, a gear VII, 3410, a waterproof cover III, 3411 and a waterproof cover IV;
3501. Motor VIII, 3502, connecting rod I, 3503, connecting rod II, 3504, connecting rod III, 3505, connecting rod IV, 3506, stop lever, 3507, connecting rod, 3508, motor IX, 3509, connecting shaft II;
3601. The scraper II, 3602, a motor mounting rack II, 3603, a motor X, 3604, a gear VIII, 3605, a gear IX, 3606, a scraper III, 3607, a reinforcing connecting rod, 3609, a motor mounting rack III, 3610, a motor XI, 3611, a gear X, 3612, a gear XI, 3613, a screen I, 3614, a screen II, 3615, a waterproof cover V, 3616, a fixed shaft, 3617, a bevel gear V, 3618, a bevel gear VI, 3619, an angle stepping motor IV, 3620, a connecting plate II, 3621, a connecting shaft III, 3622, a scraper IV, 3623, an overflow plate, 3624 and a fixed plate.
Detailed Description
The technical scheme of the present invention will be further specifically described below with reference to fig. 1 to 13 for the convenience of understanding of those skilled in the art.
Example 1:
A biological denitrification and dephosphorization MBR sewage treatment system comprises a pretreatment tank, an anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank, wherein the pretreatment tank, the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank are sequentially arranged.
A treatment process of biological denitrification and dephosphorization MBR sewage treatment system comprises the following specific steps:
1) A pretreatment tank, wherein coarse gratings with gaps of 35 mm are arranged, large-particle impurities are filtered, fine gratings with gaps of 3 mm are arranged, fine suspended matters are filtered, membrane winding and blocking of equipment are prevented, the pH value of sewage is controlled to be 7 by adding HCl or alkali NaOH, a low-speed submersible stirrer is adopted, the stirring rotating speed is set to be 50 rpm, and sludge deposition is prevented;
2) Anaerobic pool treatment, namely ensuring that the hydraulic retention time HRT is 2 hours, the concentration of dissolved oxygen is 0.17mg/L, ensuring a strict anaerobic environment, avoiding oxygen from entering, keeping the concentration of sludge at 4000mg/L, easily causing sludge to float upwards when the concentration is too high, and inadequate phosphorus release when the concentration is too low, adopting low-speed mechanical stirring, setting the stirring rotating speed to be 30 rpm, preventing sludge deposition, and avoiding excessive stirring to introduce oxygen;
3) The anoxic tank treatment, namely ensuring that the hydraulic retention time HRT is 3 hours, the concentration of dissolved oxygen is 0.3 mg/L, ensuring the micro anoxic environment, adopting low-speed mechanical stirring, setting the stirring rotating speed to be 20 rpm, and preventing the denitrification produced gas from floating upwards after the sludge is deposited;
4) The treatment of an aerobic tank, wherein the hydraulic retention time HRT is ensured to be 6 hours, the concentration of dissolved oxygen is ensured to be 3mg/L, the aeration mechanism 14 is used for aerating in the aerobic tank, the motor II202 drives the transmission shaft I203 to rotate, the transmission shaft I203 drives the bevel gear I204 to rotate, the bevel gear I204 is meshed with the bevel gear II205, the bevel gear II205 drives the transmission shaft II206 to rotate, the transmission shaft II206 drives the bevel gear III207, the bevel gear III207 is meshed with the bevel gear IV208, the bevel gear IV208 drives the connecting shaft I210 to rotate, the connecting shaft I210 drives the bronchus 211 and the helical blades 212 to rotate, when gas is blown out into sewage through the bronchus 211, the bubbles are scattered by the helical blades 212, the contact area between the gas and the liquid is further increased, the aeration effect is enhanced, the pore diameter of the air holes arranged on the bronchus 211 is less than or equal to 2 mm, the oxygen utilization rate is improved to 30% -40%, and the operation period is that aeration is stopped by 5 min after 15 min;
The scum generated after aeration is cleaned through a scum cleaning mechanism 15, a travelling mechanism 305 in the scum cleaning mechanism 15 controls a first scraping mechanism 307 to scrape off a second scraping mechanism 309, a motor V3201 controlled by the travelling mechanism 305 controls a gear III3203 to rotate, the gear III3203 is meshed with a rack III3204, the rack III3204 is fixed on a supporting plate 301, the gear III3203 drives a support 3202 to move along the rack III3204, a motor VI3206 drives a worm 3207 to rotate, the worm 3207 is meshed with a worm gear 3208, the worm gear 3208 rotates, the center of the worm gear 3208 is meshed with a threaded rod 3209, the worm gear 3208 rotates to drive a threaded rod 3209 to lift, the threaded rod 3209 lifts to drive a lifting plate II3211 to lift, the lifting plate II3211 drives an adjusting mechanism 308 to move and lift, a motor VIII3501 of the adjusting mechanism 308 controls a connecting rod I3502 to rotate, the connecting rod I3502 drives a connecting rod IV3505 to swing through the connecting rod III 3503, the connecting rod IV 3504 drives the connecting rod 3507 to swing, the connecting rod 3507 drives the connecting rod IX3508 to swing with a connecting shaft II3509, and the connecting shaft II3509 to adjust the positions of the first scraping mechanism 307 and the second scraping mechanism 309;
The scum salvaging mechanism 306 on the first scraping mechanism 307 controls the screw rod II3303 to rotate through the motor VII3301, the screw rod II3303 drives the moving seat 3304 to move, the moving seat 3304 drives the angle stepping motor I3305 to move, the angle stepping motor I3305 controls the connecting plate I3306 to rotate, the connecting plate I3306 drives the stranded wire wheel 3307 to swing, the stranded wire wheel 3307 controls the winding and unwinding of the towing wire 3308, the towing wire 3308 drives the lower net bag 3309, when the scum salvaging mechanism 306 is driven to move to one side of the box 12 through the travelling mechanism 305, the net bag 3309 salvages and cleans suspended impurities in sewage, the problem that a large amount of suspended impurities exist in the lower layer of the sewage after the upper impurities in the sewage are scraped is avoided, the cleaning efficiency is more efficient, the angle stepping motor II3403 of the first scraping mechanism 307 drives the gear IV3404 to rotate, the gear IV 3405 is meshed with the gear V3405, the gear V3405 drives the scraper I3402 to rotate according to the requirement, and the inclination angle of the scraper I3402 is regulated;
the motor X3603 and the motor XI3610 of the second scraping mechanism 309 control the angle between the scraping plate III3606 and the screen plate, so that two groups of scraping plates and the screen plate form an included angle, the efficiency of scraping and cleaning scum is improved, the angle stepping motor IV3619 controls the scraping plate IV3622 to swing downwards, the scraping plate IV3622 forms a height difference with the scraping plate II3601 and the scraping plate III3606 at the front end, scum which cannot be scraped by the scraping plate II3601 and the scraping plate III3606 is scraped again, the overflow plate 3623 arranged on the scraping plate IV3622 stops scum from passing on the premise of ensuring water flow, the scraping efficiency is further improved, and the floating scum in sewage is scraped to the scum conveying mechanism 304 in a reciprocating manner at a speed of 40rpm by the first scraping mechanism 307 and the second scraping mechanism 309;
The motor III3101 of the scum conveying mechanism 304 controls the screw rod I3102 to rotate, the screw rod I3102 drives the lifting plate I3104 to lift, the motor IV3105 controls the auger 3107 to rotate according to the height of sewage in the box 12, the scraping groove 3106 collects scum on the upper part of the sewage and then is sent out by the auger 3107, the electric push rod 3113 pulls the push plate 3112 backwards in the process of collecting the scum, the push plate 3112 drives the rack II3111 backwards, the rack II3111 is meshed with the half gear 3110, the half gear 3110 drives the slide cover 3109 to rotate backwards, the slide cover 3109 opens the collected scum, the electric push rod 3113 pushes the push plate 3112 forwards in the process of conveying the scum, the push plate 3112 drives the rack II3111 forwards, the rack II 3110 is meshed with the half gear 3110, the half gear 3110 drives the slide cover 3109 to slide forwards, and the slide cover 3109 is closed to ensure that the scum cannot leak outwards in the conveying process, and large-area scum cleaning is completed;
5) And the MBR membrane pond is characterized in that suspended matters and bacteria are thoroughly removed through a microfiltration membrane, the aperture of the membrane is 0.05 mu m, residual organic matters are degraded, the membrane flux is set to be 20L/(m2.h), the aeration intensity is set to be 0.4Nm 3/(m2.h), the suction time is 2 min of every 10min stops, UV disinfection is firstly adopted, the dosage is 35 mJ/cm < 2 >, sodium hypochlorite is then added, and the adding amount is 8 mg/L, so that the sewage treatment process is completed.
According to the step 4), the aerobic tank comprises a water inlet 11, a tank body 12, a moving mechanism 13, an aeration mechanism 14, a scum cleaning mechanism 15, a protection cover I16 and a water outlet 17, wherein the water inlet 11 is arranged at the front end of the tank body 12, the water outlet 17 is arranged at the rear end of the tank body 12, the moving mechanism 13 is arranged at one side of the tank body 12, the protection cover I16 is fixed at two sides of the tank body 12, the moving mechanism 13 is arranged in the protection cover I16, the scum cleaning mechanism 15 and the aeration mechanism 14 are arranged in the tank body 12, the scum cleaning mechanism 15 is arranged at the upper layer in the tank body 12, the aeration mechanism 14 is arranged at the lower layer in the tank body 12, the scum cleaning mechanism 15 and the aeration mechanism 14 are connected with the moving mechanism 13, sewage enters the tank body 12 through the water inlet 11, the moving mechanism 13 drives the aeration mechanism 14 and the scum cleaning mechanism 15 to move, the aeration mechanism 14 carries out aeration treatment on sewage in the tank body 12, the scum cleaned in the sewage is cleaned through the scum cleaning mechanism 15, and the scum after the aeration treatment goes through the scum cleaning mechanism 15 enters the lower treatment procedure through the water outlet 17.
The moving mechanism 13 comprises a motor I101, a motor mounting frame I102, a rocker arm 103, a sliding shaft 104, a sliding groove plate 105 and a connecting frame 111, wherein the motor I101 is mounted on the motor mounting frame I102, the motor mounting frame I102 is fixed on the outer side of the box body 12, the output end of the motor I101 is connected with one end of the rocker arm 103, the sliding shaft 104 is arranged at the other end of the rocker arm 103, the sliding shaft 104 is simultaneously arranged in the sliding groove plate 105, the sliding shaft 104 is in sliding connection with the sliding groove plate 105, the sliding groove plate 105 is fixedly connected with a connecting block 106, the connecting block 106 is fixedly connected with a rack I107 on the lower side, the rack I107 is arranged in a sliding rail I110, the sliding rail I110 is fixed on the outer side of the box body 12, the other side of the rack I107 is fixedly connected with the connecting frame 111, the connecting frame 111 is arranged in the box body 12, an upper group of the rack I107 and a lower group of racks I107 are simultaneously meshed with a gear I108, the gear I108 is rotatably connected with a positioning shaft I109, the positioning shaft I109 is fixed on the outer side of the box body 12, the motor I101 controls the rocker arm 103 to rotate, the sliding shaft 104 slides in the sliding groove plate 105, the sliding plate 105 is driven by the sliding groove plate 105, the sliding plate 105 is fixedly connected with the sliding groove plate 105, the connecting block 105 is fixedly connected with the connecting block 106, the connecting block 106 is driven by the sliding groove I, and the upper side and the lower side of the upper side of the rack I107 and the lower side of the lower rack I is driven by the upper rack 107 to move relative to move through the rack I107.
The aeration mechanism 14 comprises a movable frame 201, a motor II202, a gas pipe 209, a connecting shaft I210, a bronchus 211, helical blades 212 and a supporting frame 213, wherein the movable frame 201 is fixedly connected with the connecting frame 111, the motor II202 is arranged on the movable frame 201, the output end of the motor II202 is connected with a transmission shaft I203, the helical blades I204 are arranged on the transmission shaft I203, the helical gears I204 are meshed with a helical gear II205, the motor II202, the transmission shaft I203, the helical gear I204 and the helical gear II205 are respectively arranged in a waterproof cover I214, the helical gear II205 is arranged at one end of the transmission shaft II206, a helical gear III207 is arranged at the other end of the transmission shaft II206, the helical gear III207 is meshed with a helical gear IV208, the helical gear III207 and the helical gear IV208 are arranged in a waterproof cover II215, the helical gear IV208 is arranged on the connecting shaft I210, the connecting shaft is arranged on the upper part of the gas pipe 209, the connecting shaft is simultaneously provided with a bronchus 211 and helical blades 212, the helical blades 212 are simultaneously arranged in the supporting frame 213, the helical blades 212 are simultaneously, the helical blades 212 are rotatably connected with the supporting frame 213, the supporting frame 213 is fixedly arranged in a protective cover 216 II, the protective cover II is fixedly arranged on the movable frame 201 II, the protective cover II206, the protective cover 206 is rotatably driven by the helical gear II, the protective cover 206 is penetrated by the motor II and the protective cover 206 and the helical gear 205, and the helical gear 205 is rotatably drives the helical gear 208 and the helical gear 208 to rotate, and the helical gear 208 to drive the helical gear 208 to rotate, the helical gear 208 and the helical gear 208.
The scum cleaning mechanism 15 comprises a supporting plate 301, a water pump 302, a water pipe 303, a scum conveying mechanism 304, a traveling mechanism 305, a scum salvaging mechanism 306, a first scraping mechanism 307, an adjusting mechanism 308 and a second scraping mechanism 309, wherein the supporting plate 301 is fixedly connected with the connecting frame 111, the water pump 302 is fixedly arranged on the upper portion of the supporting plate 301, the water pump 302 is connected with the water pipe 303, the scum conveying mechanism 304 is arranged on the lower portion of the supporting plate 301, two groups of traveling mechanisms 305 are arranged on two sides of the supporting plate 301, the adjusting mechanism 308 is respectively connected with the second scraping mechanism 309 and the first scraping mechanism 307, the scum salvaging mechanism 306 is arranged on the upper portion of the first scraping mechanism 307, the scum salvaging mechanism 306 is driven by the moving mechanism 13 to move in the whole body of the scum cleaning mechanism 15 in the box 12, the angle of the second scraping mechanism 309 is adjusted by the adjusting mechanism 308, the scum on the upper portion of the large area is scraped to one side by the scum conveying mechanism 309, the scum conveying mechanism 304 is collected, the scum in the large area is scraped off and conveyed out of the box 12 by the scum conveying mechanism 307, the scum is scraped off by the first scraping mechanism 307, the scum left in the large area is salvaged in the sewage, the scum is salvaged in the liquid, the scum is salvaged in the liquid in the first scraping mechanism, and the scum is salvaged in the liquid, and the scum in the liquid, in the floating in the liquid, in the body, and the scum is more than is more efficiently.
The scum conveying mechanism 304 comprises a motor III3101, a lifting plate I3104, a motor IV3105, a scraping groove 3106, a packing auger 3107, a sliding cover bracket 3108, a sliding cover 3109 and an electric push rod 3113; the motor III3101 is arranged on the supporting plate 301, the output end of the motor III3101 is connected with the lead screw I3102, the lifting plate I3104 is arranged on the lead screw I3102, the lifting plate I3104 is in matched connection with the lead screw I3102, two groups of limiting stand columns I3103 are arranged at the lower part of the supporting plate 301, the limiting stand columns I3103 are in sliding connection with the lifting plate I3104, two groups of scraping grooves 3106 are arranged at the lower part of the lifting plate I3104, the motor IV3105 is arranged at one side of the scraping grooves 3106, the output end of the motor IV3105 is connected with the auger 3107, the auger 3107 is integrally arranged in the scraping grooves 3106, a plurality of groups of sliding cover supports 3108 are arranged on the scraping grooves 3106, the sliding cover supports 3108 are in sliding connection with the sliding cover 3109, a half gear 3110 is fixed on the sliding cover 3100, the half gear 3110 is meshed with the rack II3111, one end of the rack II3111 is provided with a push plate 3112, the push plate 3112 is connected with the electric push rod 3113, and the electric push rod 3113 is fixed on the lifting plate I3104. The motor III3101 controls the lead screw I3102 to rotate, the lead screw I3102 drives the lifting plate I3104 to lift, the lead screw I3105 controls the auger 3107 to rotate according to the height of sewage in the box 12 to lift to a proper position, the scraping groove 3106 collects scum on the upper portion of the sewage and then is sent out by the auger 3107, the electric push rod 3113 pulls the push plate 3112 backwards in the process of collecting the scum, the push plate 3112 drives the rack II3111 backwards, the rack II3111 is meshed with the half gear 3110, the half gear 3110 drives the sliding cover 3109 to rotate backwards, the sliding cover 3109 is opened to collect the scum, the electric push rod 3113 pushes the push plate 3112 forwards in the process of conveying the scum, the push plate 3112 drives the rack II3111 forwards, the rack II3111 is meshed with the half gear 3110, the half gear 3110 drives the sliding cover 3109 to slide forwards, and the sliding cover 3109 is closed to ensure that the scum cannot leak outwards in the conveying process.
The traveling mechanism 305 comprises a motor V3201, a bracket 3202, a sliding rail II3205, a motor VI3206, a limiting stand column II3210 and a lifting plate II3211; the motor V3201 is arranged at the front end of the support 3202, the output end of the motor V3201 is connected with two groups of gears III3203, the gears III3203 are simultaneously arranged in the support 3202, the gears III3203 are meshed with racks III3204, the racks III3204 are fixed on the support 301, a sliding rail II3205 is arranged on the outer side of the racks III3204, the sliding rail II3205 is fixed on the support 301, the sliding rail II3205 is in sliding connection with the support 3202, the motor VI3206 is arranged on one side of the support 3202, the output end of the motor VI3206 is connected with a worm 3207, the worm 3207 is meshed with a worm wheel 3208, the worm wheel 3208 is in rotating connection with the support 3202, a threaded rod 3209 is meshed with the inner center of the worm wheel 3208 and is installed, the threaded rod 3209 penetrates through the support 3202 to be connected with the lifting plate II3211, the limiting stand II3210 is arranged at the other end of the support 3202, the limiting stand II3210 is in sliding connection with the support 3202, and the limiting stand II3210 penetrates through the support 3202 to be connected with the lifting plate II 3211. The motor V3201 controls the gear III3203 to rotate, the gear III3203 is meshed with the rack III3204, the rack III3204 is fixed on the supporting plate 301, the gear III3203 drives the support 3202 to move along the rack III3204, the sliding rail II3205 limits the position of the support 3202, the motor VI3206 drives the worm 3207 to rotate, the worm 3207 is meshed with the worm gear 3208, the worm gear 3208 rotates, the center inside the worm gear 3208 is meshed with the threaded rod 3209, the worm gear 3208 rotates to drive the threaded rod 3209 to lift, and the threaded rod 3209 lifts to drive the lifting plate II3211 to lift.
The scum salvaging mechanism 306 comprises a motor VII3301, a moving seat 3304, an angle stepping motor I3305, a wire pulling wheel 3307, a wire pulling 3308 and a net bag 3309, wherein the motor VII3301 is arranged at one end of a limiting sliding groove 3302, the limiting sliding groove 3302 is provided with two groups of fixed on a lifting plate II3211, a lead screw II3303 is arranged in the limiting sliding groove 3302, the lead screw II3303 is connected with the moving seat 3304 in a matched manner, the upper part of the moving seat 3304 is provided with the angle stepping motor I3305, the output end of the angle stepping motor I3305 is connected with a connecting plate I3306, the upper part of the connecting plate I3306 is provided with a wire pulling wheel 3307, the wire pulling wheel 3308 is wound on the wire pulling wheel 3307, the lower part of the wire pulling wheel 3308 is connected with the net bag 3309, the motor VII is used for controlling the lead screw II3303 to rotate, the lead screw II3303 drives the moving seat 3304 to move, the moving seat 3304 drives the angle stepping motor I3305 to rotate, the connecting plate I3306 drives the wheel 3307 to swing, the wheel 3307 controls the wire pulling wheel 3308 to control the wire pulling wheel 3308 to collect and release the wire pulling wheel 3308, the wire pulling wheel 3308 is connected with the upper part of the net bag 3308, and the impurity is more efficiently cleaned up, and the problem of the suspended impurities in the net bag is avoided when the net bag is more efficiently salvaged, and the problem is solved by the suspended impurity is more removed, and the impurity in the net bag layer is more removed by the net bag layer when the suspended layer is more removed.
The adjusting mechanism 308 comprises a motor VIII3501, a limit rod 3506, a connecting rod 3507, a motor IX3508 and a connecting shaft II3509, the motor VIII3501 is arranged on a lifting plate II3211, the output end of the motor VIII3501 is connected with a connecting rod I3502, the connecting rod I3502, a connecting rod II3503, a connecting rod III3504 and the connecting rod IV3505 are sequentially connected in a rotating mode through a pin shaft, the limit rod 3506 is connected with the lifting plate II3211 in a rotating mode, the limit rod 3506 is parallel to the connecting rod IV3505, the limit rod 3506 is connected with the connecting rod IV3505 in a rotating mode through a connecting rod 3507, a motor IX3508 is arranged on the upper portion of the connecting rod 3507, the output end of the motor IX3508 is connected with the connecting shaft II3509, the motor VIII3501 controls the connecting rod I3502 to rotate, the connecting rod I3502 drives the connecting rod IV3505 to swing through the connecting rod II3503 and the connecting rod III3504, the connecting rod IV 3507 drives the connecting rod 3507 to swing, the connecting rod 3508 drives the connecting rod 3508 to swing, the connecting rod 3509 and the limiting rod 3506 to swing.
The first scraping mechanism 307 comprises a positioning frame 3401, a scraping plate I3402, an angle stepping motor II3403, a water spray pipe 3406 and an angle stepping motor III3407, wherein the first scraping mechanism 307 is connected with an adjusting mechanism 308 at one side of a water outlet 17, the positioning frame 3401 is fixed at the lower part of a connecting shaft II3509, the scraping plate I3402 is arranged in the positioning frame 3401 and is in rotary connection with the positioning frame 3401, the angle stepping motor II3403 is arranged at the upper front end of the positioning frame 3401, the output end of the angle stepping motor II3403 is connected with a gear IV3404, the gear IV3404 is meshed with a gear V3405, the gear V3405 is connected with the scraping plate II3601, a waterproof cover IV3411 is fixed at the front end of the positioning frame 3401, the angle stepping motor II3403, the gear IV3404 and the gear V3405 are all positioned in the waterproof cover IV3411, the waterproof cover III3410 is fixed at the rear end of the positioning frame 3401, the angle stepping motor III3407 is fixed in the waterproof cover III3410, the output end of the angle stepping motor III 3408 is connected with the gear VII 8, the gear VI 8 is meshed with the gear VII 8, the gear V3405 is meshed with the gear V3406, the gear V3406 is meshed with the gear V3406, and the gear V is required to be rotated, and the gear V1 is required to be rotated, and the gear I2, and the gear is required to be rotated, and the gear I and the gear is required to be rotated.
The second scraping mechanism 309 includes a scraper II3601, a motor X3603, a scraper III3606, a reinforcing link 3607, a motor XI3610, a screen I3613, a screen II3614, an angle stepper motor IV3619, a scraper IV3622, and an overflow plate 3623; the second scraping mechanism 309 is connected with an adjusting mechanism 308 at one side of the water inlet 11, the scraper II3601 is fixed at the lower part of a connecting shaft II3509, a motor installation frame II3602 is fixed at the upper part of the scraper II3601, a motor X3603 is arranged in the motor installation frame II3602, the output end of the motor X3603 is connected with a gear VIII3604, the gear VIII3604 is meshed with a gear IX3605, the gear IX3605 is connected with a scraper III3606, the scraper III3606 is rotationally connected with the scraper II3601, a reinforcing connecting rod 3607 is arranged between the scraper III3606 and the scraper II3601, the motor installation frame III3609 is fixed at the upper part of the scraper III3606, a motor XI3610 is arranged in the motor installation frame III3609, the output end of the motor XI3610 is connected with a gear X3611, the gear X3611 is meshed with a gear XI3612, the gear XI3612 is connected with a screen I3613, the screen plate I3613 is rotationally connected with the scraper III3606, a fixed shaft 3616 is fixed at the lower end of the scraper III3606, a bevel gear V3617 is fixed on the fixed shaft 3616, the bevel gear V3617 is meshed with a bevel gear VI3618, the bevel gear V3617 and the bevel gear VI3618 are both arranged in a waterproof cover V3615, the waterproof cover V3615 is fixed at the lower part of the scraper III3606, the bevel gear VI3618 is connected with the screen plate II3614, the screen plate II3614 is rotationally connected with the screen plate I3613, two groups of fixed plates 3624 are respectively arranged at the rear ends of the scraper II3601 and the scraper III3606, an angle stepping motor IV3619 is arranged on one side of the fixed plate 3624, the output end of the angle stepping motor IV3619 is connected with a connecting shaft III3621, a connecting plate II3620 is fixed on the connecting shaft III3621, the scraper IV3622 is rotationally connected with two groups of connecting plates II3620, and an overflow plate 3623 is arranged on the scraper IV 3622.
The motor X3603 controls the gear VIII3604 to rotate, the gear VIII3604 is meshed with the gear IX3605, the gear IX3605 rotates to drive the scraping plate III3606 to adjust the angle, the motor XI3610 controls the gear X3611 to rotate, the gear X3611 is meshed with the gear XI3612, the gear XI3612 rotates to drive the screen I3613 to rotate, the screen I3613 rotates and simultaneously drives the screen II3614 to rotate, the screen II3614 rotates to drive the bevel gear VI3618 to rotate, the bevel gear VI3618 is meshed with the bevel gear V3617, the bevel gear V3617 is fixed below the fixed shaft 3616, the bevel gear VI3618 rotates along the bevel gear V3617, the rotation generated by the bevel gear VI3618 drives the screen II3614 to rotate downwards to be opened, the angle stepping motor IV3619 controls the connecting shaft III3621 to rotate, the connecting shaft III3621 drives the connecting plate II3620 to rotate, and the connecting plate II3620 drives the scraping plate IV3622 to swing; the angle between the scraping plate III3606 and the screen plate is controlled by the motor X3603 and the motor XI3610, so that two groups of scraping plates and the screen plate form an included angle, the efficiency of scraping and cleaning the scum is improved, the scraping plate IV3622 is controlled by the angle stepping motor IV3619 to swing downwards, the height difference between the scraping plate IV3622 and the scraping plate II3601 and the scraping plate III3606 at the front end is formed, scum which cannot be scraped by the scraping plate II3601 and the scraping plate III3606 is scraped again, the overflow plate 3623 arranged on the scraping plate IV3622 stops the scum from passing under the premise of ensuring water flow, the scraping efficiency is further improved, the scum is scraped to one side while the second scraping mechanism 309 moves forwards, and the scum conveying mechanism 304 collects and conveys the scraped scum out of the box 12 forwards, so that the scum cleaning operation is completed.
Example 2:
The differences from example 1 are:
1) The pretreatment tank is characterized in that the aperture of a coarse grille is set to be 20mm, the aperture of a fine grille is set to be 1mm, and the PH of sewage is controlled to be 6.5;
2) Anaerobic pool treatment, wherein the hydraulic retention time HRT is 1 hour, the concentration of dissolved oxygen is 0.15mg/L, and the concentration of sludge is kept at 3000 mg/L;
3) Anoxic tank treatment, namely, hydraulic retention time HRT is 2 hours, dissolved oxygen concentration is 0.3mg/L, and mechanical stirring rotating speed is set to be 15rpm;
4) The aerobic tank treatment, namely, the hydraulic retention time HRT is 4 hours, the concentration of dissolved oxygen is 2mg/L, and the sewage is repeatedly aerated and the floating scum in the sewage is repeatedly scraped and cleaned for 35 minutes at the speed of 25 rpm;
5) MBR membrane pool treatment, wherein the aperture of a filter membrane is 0.01 mu m, the membrane flux is set to 15L/(m2.h), the aeration intensity is set to 0.3Nm < 3 >/(m2.h), the suction time is 2min after stopping every 8 min, UV disinfection is firstly adopted, the dosage is 30 mJ/cm < 2 >, then sodium hypochlorite is added, and the addition amount is 5mg/L;
the remaining procedure and values are the same as in example 1 and will not be repeated here.
Example 3:
The differences from example 1 are:
1) Pretreatment, wherein the aperture of a coarse grille is set to be 50mm, the aperture of a fine grille is set to be 5mm, and the PH of sewage is controlled to be 8.5;
2) Anaerobic pool treatment, wherein the hydraulic retention time HRT is 3 hours, the concentration of dissolved oxygen is 0.2mg/L, and the concentration of sludge is kept at 5000mg/L;
3) Anoxic tank treatment, namely, hydraulic retention time HRT is 4 hours, dissolved oxygen concentration is 0.5mg/L, and mechanical stirring rotating speed is set to be 10rpm;
4) The aerobic tank treatment, namely, the hydraulic retention time HRT is 8 hours, the concentration of dissolved oxygen is 4mg/L, and the sewage is repeatedly aerated and floating scum in the sewage is repeatedly scraped and cleaned at the speed of 60rpm for 50 minutes;
5) MBR membrane pool treatment, wherein the aperture of a filter membrane is 0.4 mu m, the membrane flux is set to 25L/(m2.multidot.h), the aeration intensity is set to 0.5Nm3/(m2.multidot.h), the suction time is 3min after stopping every 12 min, UV disinfection is firstly adopted, the dosage is 40 mJ/cm < 2 >, then sodium hypochlorite is added, and the adding amount is 10mg/L;
the remaining procedure and values are the same as in example 1 and will not be repeated here.
Comparative example 1:
the difference from example 1 is that the aeration mechanism is not controlled to treat the sewage when the step 4) is performed.
Comparative example 2:
The difference from example 1 is that the scum cleaning mechanism is not controlled to treat the sewage when step 4) is performed.
Comparative example 3:
the difference from example 1 is that the aeration mechanism and the scum cleaning mechanism are not controlled to treat the sewage when the step 4) is performed.
The sewage treated by the above examples and comparative examples was examined, and the test results are shown in Table 1;
| suspended matter mg/L | PH value | Fat mg/L | Phosphorus content mg/L | Nitrogen content mg/L | |
| Example 1 | 4 | 7.2 | 0.3 | 0.3 | 5 |
| Example 2 | 3 | 7.0 | 0.2 | 0.2 | 6 |
| Example 3 | 5 | 6.9 | 0.4 | 0.5 | 8 |
| Comparative example 1 | 16 | 8.0 | 0.9 | 1.2 | 14 |
| Comparative example 2 | 14 | 7.8 | 0.7 | 1.0 | 11 |
| Comparative example 3 | 20 | 8.0 | 1.2 | 1.4 | 18 |
As can be seen from the data of comparative examples 1-3 and comparative example 3, the sewage can be treated with better effect by the aeration mechanism and the scum cleaning mechanism;
As can be seen from the data of examples 1-3 and comparative examples 1,2 and 3 in Table 1, the environmental engineering sewage can reach the recycling standard specified in pollutant emission standard of urban sewage treatment plants (GB 18918-2002) after being treated by the process and the device provided by the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "plurality" is two or more, and the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
In summary, the electronic or electric components including but not limited to the motor, the electric push rod, the angle stepping motor, etc. are components in the prior art, and the electrical connection between the components is conventional circuit connection or electrical connection in the prior art through private customization or purchase, which is not the protection scope of the present invention.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121449185A (en) * | 2025-11-27 | 2026-02-03 | 内蒙古鄂尔多斯永煤矿业有限公司 | Waste residue treatment and recycling device for coal water treatment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160567A (en) * | 2018-09-19 | 2019-01-08 | 深圳市玖品空气净化科技有限公司 | A kind of water treatment facilities with scraper plate regulatory function |
| CN112661342A (en) * | 2019-10-15 | 2021-04-16 | 龙岩市瑞泽环保科技有限公司 | MBR sewage treatment system of degree of depth nitrogen and phosphorus removal |
| CN116332353A (en) * | 2023-05-01 | 2023-06-27 | 山东绿立冠环保科技有限公司 | Sewage treatment process for high-efficiency denitrification and dephosphorization |
| CN116605943A (en) * | 2023-06-20 | 2023-08-18 | 山东科恒环境科技有限公司 | Air supporting machine for pollution control |
| CN118908492A (en) * | 2024-09-12 | 2024-11-08 | 临沂市环境保护科学研究所有限公司 | Purification treatment device for efficiently treating oily wastewater |
| CN222623801U (en) * | 2024-06-07 | 2025-03-18 | 广州市市政工程设计研究总院有限公司 | Sewage treatment pool and equipment |
| CN119912117A (en) * | 2025-03-15 | 2025-05-02 | 临沂科技职业学院 | Industrial wastewater resource regeneration treatment system and process |
-
2025
- 2025-07-20 CN CN202510997834.2A patent/CN120573904B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160567A (en) * | 2018-09-19 | 2019-01-08 | 深圳市玖品空气净化科技有限公司 | A kind of water treatment facilities with scraper plate regulatory function |
| CN112661342A (en) * | 2019-10-15 | 2021-04-16 | 龙岩市瑞泽环保科技有限公司 | MBR sewage treatment system of degree of depth nitrogen and phosphorus removal |
| CN116332353A (en) * | 2023-05-01 | 2023-06-27 | 山东绿立冠环保科技有限公司 | Sewage treatment process for high-efficiency denitrification and dephosphorization |
| CN116605943A (en) * | 2023-06-20 | 2023-08-18 | 山东科恒环境科技有限公司 | Air supporting machine for pollution control |
| CN222623801U (en) * | 2024-06-07 | 2025-03-18 | 广州市市政工程设计研究总院有限公司 | Sewage treatment pool and equipment |
| CN118908492A (en) * | 2024-09-12 | 2024-11-08 | 临沂市环境保护科学研究所有限公司 | Purification treatment device for efficiently treating oily wastewater |
| CN119912117A (en) * | 2025-03-15 | 2025-05-02 | 临沂科技职业学院 | Industrial wastewater resource regeneration treatment system and process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121449185A (en) * | 2025-11-27 | 2026-02-03 | 内蒙古鄂尔多斯永煤矿业有限公司 | Waste residue treatment and recycling device for coal water treatment |
| CN121449185B (en) * | 2025-11-27 | 2026-05-19 | 内蒙古鄂尔多斯永煤矿业有限公司 | A waste residue treatment and recycling device for coal-water treatment |
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| CN120573904B (en) | 2026-03-31 |
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