CN115724524A - Environment-friendly sewage treatment system - Google Patents
Environment-friendly sewage treatment system Download PDFInfo
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- CN115724524A CN115724524A CN202211484657.0A CN202211484657A CN115724524A CN 115724524 A CN115724524 A CN 115724524A CN 202211484657 A CN202211484657 A CN 202211484657A CN 115724524 A CN115724524 A CN 115724524A
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- floating
- oxidation ditch
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- 239000010865 sewage Substances 0.000 title claims abstract description 114
- 238000007667 floating Methods 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000010802 sludge Substances 0.000 claims abstract description 55
- 230000003647 oxidation Effects 0.000 claims abstract description 50
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 45
- 230000005540 biological transmission Effects 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 27
- 230000033001 locomotion Effects 0.000 claims description 17
- 238000013461 design Methods 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 7
- 238000010992 reflux Methods 0.000 abstract description 4
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- 230000005484 gravity Effects 0.000 description 16
- 239000000126 substance Substances 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000007790 scraping Methods 0.000 description 5
- 230000009189 diving Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 241000894006 Bacteria Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
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- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
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Images
Classifications
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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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- Removal Of Floating Material (AREA)
Abstract
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to an environment-friendly sewage treatment system which comprises an oxidation ditch, wherein an aeration device is arranged in the oxidation ditch, the aeration device continuously aerates the oxidation ditch, and one end of the oxidation ditch is externally connected with a sewage discharge device; the system comprises a secondary sedimentation tank and a reflux pump room, wherein the reflux pump room is used for pumping active sludge at the bottom of the secondary sedimentation tank and conveying the active sludge into an oxidation ditch; the device also comprises a collecting assembly, wherein the collecting assembly is arranged on the oxidation ditch and is used for collecting the floating mud on the liquid surface of the oxidation ditch; the floating sludge collecting device comprises a collecting assembly, a residue discharging assembly, a water collecting assembly and a conveying assembly, wherein the collecting assembly is used for collecting floating sludge, the residue discharging assembly is arranged on the collecting assembly and matched with the collecting assembly, and the residue discharging assembly is used for guiding the floating sludge to be discharged.
Description
Technical Field
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to an environment-friendly sewage treatment system.
Background
Among the related processes of sewage treatment, the activated sludge process is widely used in the sewage treatment field because of its advantages of good treatment effect, flexible adjustment of the height of sewage treatment degree, high water inlet load and the like, and the activated sludge process performs continuous mixed culture of sewage and various microbial populations under the condition of artificial oxygenation during sewage treatment to form activated sludge, removes organic pollutants in the sewage by utilizing the biological coagulation, adsorption and oxidation effects of the activated sludge, and then separates sludge from water to further purify the sewage.
In the activated sludge water treatment process, activated sludge presents alum floc-like particles in sewage, also called biological floc, the diameter of the floc is generally 0.02-0.2 mm, the floc can be immediately condensed into larger floc particles to sink when standing, when the activated sludge removes organic matters, the sludge can be expanded due to the conditions of environment change, insufficient oxygen supply, overhigh aeration value, overhigh oil and dirt content in the sewage and the like in the long-time water treatment process, the expanded activated sludge has increased volume and reduced density, and floats on the liquid surface of the sewage to form floating sludge, and the existence of the floating sludge can isolate the sewage from the air, reduce the dissolution rate of oxygen in the air into the water and also cause negative influence on the water quality and water outlet.
In order to reduce the negative impact that the mud floats caused to sewage, in sewage treatment process, can adopt machinery mud scraping device usually, collect the mud float on the sewage liquid level, get rid of, but strike off the mud float through machinery, on the one hand, because machinery mud scraping device produces stirring at the in-process of scraping mud, will cause partial mud to subside in the sewage, upwards float once more afterwards, it is relatively poor to cause mud float collection efficiency, on the other hand mud float contains a large amount of moisture in collection process, consequently, it is great to the delivery pressure of the mud float of collecting, the portable of mud float is handled not convenient for.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
In order to make up the defects of the prior art and solve the technical problems, the invention provides an environment-friendly sewage treatment system.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to an environment-friendly sewage treatment system which comprises an oxidation ditch, wherein an aeration device is arranged in the oxidation ditch, the aeration device carries out continuous aeration in the oxidation ditch, and one end of the oxidation ditch is externally connected with a sewage discharge device;
the end, far away from the water inlet, of the oxidation ditch is provided with a water outlet, and the water outlet is in conduction connection with the secondary sedimentation tank through a pipeline;
the backflow pump room is used for pumping active sludge at the bottom of the secondary sedimentation tank and conveying the active sludge into the oxidation ditch;
the device also comprises a collecting assembly, wherein the collecting assembly is arranged on the oxidation ditch and is used for collecting the floating mud on the liquid surface of the oxidation ditch;
the collecting assembly comprises a lifting column, and the lifting column is fixedly arranged in the oxidation ditch;
the floating plate is connected to the lifting column in a sliding mode and is suspended on the liquid level;
the sewage collection tank is fixedly arranged in the middle of the floating plate, and the top end of the sewage collection tank is open;
the lifting device comprises an impeller, a transmission wheel group and a lifting wheel, wherein the bottom of a floating plate is rotatably connected with the impeller through a guide rod, an arc-shaped groove is formed in the floating plate, the lifting wheel is rotatably connected into the arc-shaped groove through the guide rod, the transmission wheel group is installed on the floating plate, and the transmission wheel group is respectively in transmission with the impeller and a lifting wheel belt through a belt;
the lifting wheel rotates upwards at one side far away from the sewage collection tank and is used for conveying floating mud into the sewage collection tank;
the slag discharging component is installed on the collecting component, matched with the collecting component and used for guiding floating mud to be discharged.
Preferably, the floater is kept away from dirty case one side fixedly connected with guide plate, it is smooth excessive between guide plate and the arc wall, the guide plate slope sets up, the guide plate least significant end aligns with the impeller middle part.
Preferably, the lifting wheel blade is provided with an extension groove, the lifting wheel blade is provided with an extension plate, and the extension plate is in sliding connection with the lifting wheel blade through the extension groove.
Preferably, micropores which are uniformly distributed are formed in the lifting wheel blade and the extension plate, and the extension plate is far away from the arc design of one end of the lifting wheel center.
Preferably, dirty case that collects is close to lifting wheel one side and articulates there is the diving board, diving board arc design, through spring elastic connection between diving board and the kickboard, dirty case one end of collection is kept away from to the diving board, is located lifting wheel motion route.
Preferably, the slag discharging assembly comprises a filter pressing pipe, the filter pressing pipe is fixedly connected to the bottom of the sewage collection tank, and the filter pressing pipe is communicated with the inner cavity of the sewage collection tank;
the reciprocating pressure plate is slidably arranged in the filter pressing pipe, and two ends of the reciprocating pressure plate are fixedly connected with moving rods;
the sewage collection tank is provided with a sewage inlet and a sewage outlet, the sewage inlet is connected with the sewage collection tank through a pipeline, the sewage collection tank is provided with a driving cavity, the driving cavity is internally and rotatably connected with a reciprocating screw rod, the reciprocating screw rod is in belt transmission with a transmission wheel set through a belt, a nut is arranged on the reciprocating screw rod and fixedly connected with a moving rod, and the nut is in screw transmission with the reciprocating screw rod;
the mud discharging pipe is symmetrically arranged at the bottom of the filter pressing pipe and is communicated with the filter pressing pipe.
Preferably, the filter pressing pipe is fixedly connected with an elastic sheet at a conduction position of the dirt collecting box, the elastic sheet is provided with a one-way opening, the bottom of the filter pressing pipe is provided with a one-way water removing opening, a filter screen is fixedly connected onto the one-way water removing opening, two ends of the filter pressing pipe are elastically connected with spring plates, and the spring plates are located on a moving path of the reciprocating pressing plate.
Preferably, the bottom of the filter pressing pipe is fixedly connected with a water guide pipe, the water guide pipe is communicated with the one-way dewatering port, the water guide pipe extends to the guide plate, the water guide pipe is opened on the guide plate, and the opening direction is upward.
Preferably, the guide plate is made of a perforated plate, and the holes in the guide plate are gradually dense from top to bottom.
The invention has the following beneficial effects:
1. compared with a mud scraping mode in the related technology, the environment-friendly sewage treatment system provided by the invention has the advantages that the collection assembly is arranged, on one hand, the floating mud suspends on the liquid surface and is lifted from the bottom of the floating mud through the lifting wheel, the floating mud salvaging efficiency can be effectively enhanced by matching the gravity of the floating mud, on the other hand, the part of the lifting wheel under water rotates in the direction opposite to the water flow direction, even if the lifting wheel breaks up and pushes part of the floating mud, the broken floating mud can flow towards the lifting wheel along the water again due to the fact that the lifting wheel moves in the opposite direction, the collection effect of the floating mud is further enhanced, meanwhile, in the process that the floating mud rotates upwards along with the lifting wheel, the water flow mixed in the floating mud slides down under the action of the gravity, the water content of the floating mud collected in the sewage collection tank can be reduced, and the discharge pressure of the floating mud is further relieved.
2. According to the environment-friendly sewage treatment system, the reciprocating pressure plate periodically reciprocates in the filter pressing pipe to periodically press floating mud at two ends of the filter pressing pipe, so that the floating mud is driven to flow into the mud discharging pipe to move along with water under the action of pressure, the floating mud is discharged in real time, on one hand, the storage pressure of the sewage collecting tank can be effectively reduced, on the other hand, the volume of the sewage collecting tank is reduced during design, the manufacturing cost and the occupied space of equipment are reduced, on the other hand, the collected floating mud is discharged in real time, the influence of the floating mud on the total gravity of the equipment can be reduced, the suspension stability of the equipment on the liquid level is enhanced, and the effect of collecting the floating mud on the sewage level is facilitated.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the collection assembly and the slagging assembly;
FIG. 3 is a perspective view of the collection assembly and the slag discharge assembly from another perspective;
FIG. 4 is a cross-sectional view of the collection assembly and the slag discharge assembly;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a partial cross-sectional view taken at B-B of FIG. 4;
FIG. 7 is an assembly view of the impeller, the drive wheel set and the lift wheel;
in the figure: 1. an oxidation ditch; 2. a lifting column; 21. a floating plate; 22. a sewage collection tank; 23. an impeller; 24. a transmission wheel set; 25. a lifting wheel; 26. an arc-shaped slot; 3. a baffle; 4. an extension groove; 41. an extension plate; 42. a spring plate; 5. pressing a filter tube; 51. reciprocating pressing plates; 52. a travel bar; 53. a reciprocating screw; 54. a drive chamber; 55. a nut; 56. a sludge discharge pipe; 57. an elastic sheet; 58. a one-way water removing port; 6. a spring plate; 61. a water conduit.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the environmental protection sewage treatment system of the present invention comprises an oxidation ditch 1, wherein an aeration device is installed in the oxidation ditch 1, the aeration device continuously aerates the oxidation ditch 1, and one end of the oxidation ditch 1 is externally connected with a sewage discharge device;
the oxidation ditch 1 is provided with a water outlet at one end far away from the water inlet, and the water outlet is communicated and connected with the secondary sedimentation tank through a pipeline;
the backflow pump room is used for pumping the activated sludge at the bottom of the secondary sedimentation tank and conveying the activated sludge into the oxidation ditch 1;
the device also comprises a collecting component, wherein the collecting component is arranged on the oxidation ditch 1 and is used for collecting the floating mud on the liquid surface of the oxidation ditch 1;
the collecting assembly comprises a lifting column 2, and the lifting column 2 is fixedly arranged in the oxidation ditch 1;
the floating plate 21 is connected to the lifting column 2 in a sliding mode, and the floating plate 21 is suspended on the liquid level;
the sewage collection tank 22 is fixedly arranged in the middle of the floating plate 21, and the top end of the sewage collection tank 22 is opened;
the bottom of the floating plate 21 is rotatably connected with the impeller 23 through a guide rod, the floating plate 21 is provided with an arc-shaped groove 26, the lifting wheel 25 is rotatably connected into the arc-shaped groove 26 through the guide rod, the transmission wheel group 24 is arranged on the floating plate 21, and the transmission wheel group 24 is respectively in belt transmission with the impeller 23 and the lifting wheel 25 through a belt;
the lifting wheel 25 rotates upwards at one side far away from the sewage collection tank 22, and the lifting wheel 25 is used for conveying floating mud into the sewage collection tank 22;
the slag discharging assembly is arranged on the collecting assembly, is matched with the collecting assembly and is used for guiding floating mud to be discharged;
in the sewage treatment process, sewage after primary filtration is introduced into an oxidation ditch 1 through a sewage discharge device, water flows into the oxidation ditch 1 after being pressurized, meanwhile, a reflux pump room pumps back activated sludge precipitated in a secondary sedimentation tank, the pumped back activated sludge is introduced into the oxidation ditch 1, the water flow and the activated sludge simultaneously enter the oxidation ditch 1 and are mixed in the oxidation ditch 1 and then synchronously flow directionally in the oxidation ditch 1, in the process of co-flowing of the activated sludge and the sewage, microorganisms in the activated sludge absorb and adsorb organic substances in the sewage, the activated sludge is decomposed into micromolecular soluble organic substances through extracellular enzymes of the microorganisms after adsorbing a large amount of macromolecular organic substances, the micromolecular soluble organic substances and the soluble organic substances in the sewage enter cells together for conversion and degradation, and a part of the activated sludge is degraded into carbon dioxide and water, energy is provided for the activity of microorganisms, the other part is converted and synthesized into new cell substances to promote cell division and proliferation, so that the elimination effect of organic substances in the sewage is realized, along with the joint movement of the sewage and the activated sludge, when the sewage and the activated sludge move to the other end of the oxidation ditch 1, part of the sewage mixed with the activated sludge flows into a secondary sedimentation tank through a water outlet and a pipeline, and is kept stand and sedimentated in the secondary sedimentation tank, during sedimentation, the activated sludge is separated from the purified sewage, the separated activated sludge is settled at the bottom of the secondary sedimentation tank under the action of gravity and is extracted through a reflux pump room, the extracted activated sludge is discharged to the outside, part of the activated sludge is re-conveyed into the oxidation ditch 1 to be purified again, and simultaneously, part of the sewage which does not flow out through the water outlet and the activated sludge in the oxidation ditch 1 are in the process of continuous movement, the sewage is contacted with an aeration device arranged in an oxidation ditch 1, the aeration device extracts outside air and conveys the extracted air into the sewage, the sewage is coated with a large amount of oxygen and flows to the water inlet end of the oxidation ditch 1 to be mixed with the sewage and activated sludge which newly flow into the oxidation ditch 1, the circulation and the purification are carried out again, the air conveyed in the aeration device can greatly increase the content of dissolved oxygen in the sewage, oxygen support is provided for the activity and the increment of microorganisms in the activated sludge, and further the activated sludge is promoted to absorb, adsorb and convert organic substances in the sewage, meanwhile, in the process of continuous circulation operation, filamentous bacteria in the activated sludge are greatly propagated due to over-aged sludge or anoxic sludge, so that the sludge is increased in volume and adhesiveness, floats upwards and suspends on the liquid surface of the sewage to form floating sludge, and in the process of circulation and flow, the floating mud contacts with the collecting assembly, and then is collected by the collecting assembly, concretely, in the process that the floating mud flows along the water, the floating plate 21 is installed on the lifting column 2 in a sliding manner, the floating plate 21 is suspended on the liquid surface under the action of the floating force, the water flow gives the impeller 23 installed below the floating plate 21 a driving force, and further the impeller 23 is driven to rotate, the rotating impeller 23 is in belt transmission with the driving wheel set 24, so that the impeller 23 drives the driving wheel set 24 to rotate through the transmission of the belt installed on the shaft of the impeller 23 and the shaft of the driving wheel set 24, meanwhile, the driving wheel set 24 transmits the power to the lifting wheel 25 through the belt after transmission, speed reduction or speed increase, and further the lifting wheel 25 rotates in the arc-shaped groove 26, because the floating mud and the floating plate 21 are both suspended on the liquid surface in a mixed manner, the floating mud flows into the arc-shaped groove 26, and the lifting wheel 25 in the arc-shaped groove 26 rotates after transmission, dirty case 22 one side is kept away from to lifting wheel 25, lifting wheel 25 is close to and floats mud one side upwards rotation promptly, consequently at lifting wheel 25 pivoted in-process, flabellum on the lifting wheel 25 upwards lifts below the sewage liquid level, and then utilize lifting wheel 25 flabellum to carry out the lifting to the superficial mud that suspends on the liquid level, collect, at lifting wheel 25 continuously pivoted in-process afterwards, lifting wheel 25 promotes the superficial mud of collecting to dirty case 22 direction of collection, and assemble in dirty case 22 of collection, realize the collection to floating mud, the superficial mud after the collection is through arranging sediment subassembly effect back, discharge to the external world, avoid floating mud to cause great influence to the total gravity of device.
In the invention, in order to enhance the operation stability of the components, the impeller 23, the transmission wheel set 24, the lifting wheel 25 and the belt for transmission are covered by a protective shell, the shaft parts of the impeller 23 and the lifting wheel 25 extend into the protective shell, the connection parts are rotationally connected by adopting sealed bearings, the transmission wheel set 24 is completely positioned in the protective shell, and the stability of transmission of the impeller 23, the transmission wheel set 24, the lifting wheel 25 and the like in the application is enhanced.
Compared with a mud scraping mode in the related technology, the invention has the advantages that the collection component is arranged, on one hand, the floating mud is suspended on the liquid level and is lifted from the bottom of the floating mud through the lifting wheel 25, the floating mud can be effectively enhanced by matching with the gravity of the floating mud, on the other hand, the rotation direction of the part of the lifting wheel 25 under the water is opposite to the flow direction of water flow, even if the lifting wheel 25 breaks up and pushes the part of the floating mud, the broken floating mud can flow towards the lifting wheel 25 along the water again due to the fact that the movement directions of the floating mud and the lifting wheel are opposite, the collection effect of the floating mud is further enhanced, meanwhile, in the process that the floating mud rotates upwards along with the lifting wheel 25, the water flow mixed in the floating mud slides down under the action of the gravity, the water content of the floating mud collected in the mud collection box 22 can be reduced, and the discharge pressure of the floating mud is further relieved.
As a preferred embodiment of the present invention, a flow guide plate 3 is fixedly connected to one side of the floating plate 21 away from the dirt collection tank 22, the flow guide plate 3 and the arc-shaped groove 26 are in smooth transition, the flow guide plate 3 is arranged in an inclined manner, and the lowest end of the flow guide plate 3 is aligned with the middle of the impeller 23;
through setting up guide plate 3, sewage is mixing when activated sludge flows in oxidation ditch 1, the flowing sewage receives the hindrance of guide plate 3, and because guide plate 3 is the slope form setting, consequently, the velocity of flow that causes the sewage that corresponds with guide plate 3 in the vertical direction receives the hindrance, cause upper and lower floor's sewage velocity of flow difference in oxidation ditch 1, and lower floor's sewage velocity of flow increase, consequently, in the in-process that sewage flows, because the upper strata sewage is close to guide plate 3 department velocity of flow slower, the mud of floating of being convenient for is piled up in guide plate 3 department, and be guided by inclined guide plate 3, move in arc groove 26, the lifting wheel 25 of being convenient for is collected the mud of floating, lower floor's sewage velocity of flow increase simultaneously, consequently, along with the increase of sewage velocity of flow, the impact force reinforcing of sewage to impeller 23, and because guide plate 3 least significant end aligns with impeller 23 middle part, consequently, cause the impact force difference that both ends received about impeller 23 to further increase, order to about to impeller 23 rotational speed increase, the adjustment of impeller 24 to the transmission ratio of cooperation transmission wheelset, effectual reinforcing lifting wheel 25 rotation efficiency, and then improve the lifting of the mud of floating, collect the effect.
As a preferred embodiment of the present invention, the blade of the lifting wheel 25 is provided with an extension slot 4, the blade of the lifting wheel 25 is provided with an extension plate 41, and the extension plate 41 is slidably connected with the blade of the lifting wheel 25 through the extension slot 4;
by arranging the extension slot 4 and the extension plate 41, the extension plate 41 and the blades of the lifting wheel 25 can slide relatively in the rotation process of the lifting wheel 25, and because the lifting wheel 25 and the extension slot 4 are limited by the arc-shaped slot 26 and gravity, in the process that the extension plate 41 rotates along with the lifting wheel 25, when the extension plate 41 is located at the lowest end of the lifting wheel 25, the extension plate 41 is obstructed by the arc-shaped slot 26, so that the overlapping degree between the extension plate 41 and the blades of the lifting wheel 25 is relatively large, and along with the rotation of the lifting wheel 25, the extension plate 41 gradually separates from the arc-shaped slot 26, and under the action of gravity, the extension plate 41 gradually moves towards the outer sides of the blades of the lifting wheel 25, so that the relative movement is generated between the extension plate 41 and the blades of the lifting wheel 25, and further, the length of the combination of the blades of the lifting wheel 25 and the extension plate 41 is increased, and along with the continuous rotation of the lifting wheel 25, the blades of the lifting wheel 25 and the extension plate 41 lift the floating mud, then, when the extension plate 41 moves to a position above the axis of the lifting wheel 25, under the action of gravity, the extension plate 41 moves towards the axis direction of the lifting wheel 25, so that the length of the combination of the extension plate 41 and the blades of the lifting wheel 25 is shortened, the lifted floating mud is gathered between the blades of the lifting wheel 25 under the action of gravity, is driven by the lifting wheel 25 to gradually move to one side of the lifting wheel 25 close to the dirt collection box 22, rotates along with the extension plate 41 along with the lifting wheel 25, so that the extension plate 41 moves to a position below the axis of the lifting wheel 25 again, at the moment, the extension plate 41 stretches out again, and simultaneously, under the action of gravity, the floating mud gathered between the blades of the lifting wheel 25 flows to one side of the dirt collection box 22 along the blades of the lifting wheel 25 and the extension plate 41, finally flows into the dirt collection box 22, and is discharged to the outside through the residue discharge assembly, through setting up extension board 41 in this application, utilize the motion of extension board 41 on lifting wheel 25 blade, cause lifting wheel 25 when collecting the mud that floats, the increase of lifting area, to the collection effect reinforcing of floating mud, and when leading in mud to collection dirt box 22 will float, extension board 41 extension, the reinforcing is to the guide effect of floating mud.
As a preferred embodiment of the present invention, the blades of the lifting wheel 25 and the extension plate 41 are provided with uniformly distributed micro-holes, and one end of the extension plate 41 away from the center of the lifting wheel 25 is designed in an arc shape;
follow the lifting wheel 25 at the extension board 41 and rotate, lift the mud that floats, the in-process of collection, set up evenly distributed's micropore on lifting wheel 25 and the extension board 41, can lift the mud that floats with water at lifting wheel 25 and extension board 41, when breaking away from the liquid level, rivers flow downwards along the micropore on lifting wheel 25 blade and the extension board 41, drip, and the mud of suspension on the surface of water is attached to on lifting wheel 25 blade and the extension board 41, on the one hand, breaking away from of rivers, the resistance when lifting wheel 25 has continuously rotated has been reduced, on the other hand, extension board 41 tip curved setting cooperation micropore, can further strengthen the interception effect to the mud that floats of lifting, reduce the probability that the mud that floats and follow the rivers downward flow, and then the reinforcing is to the collection effect of mud.
As a preferred embodiment of the present invention, an elastic plate 42 is hinged to one side of the sewage collection tank 22 close to the lifting wheel 25, the elastic plate 42 is designed in an arc shape, the elastic plate 42 is elastically connected to the floating plate 21 through a spring, and one end of the elastic plate 42, which is far away from the sewage collection tank 22, is located on the movement path of the lifting wheel 25;
with the continuous movement of the extension plate 41 and the lifting wheel 25, when the lifting wheel 25 moves to a position below the axis of the lifting wheel 25 near the extension plate 41 on one side of the dirt collection box 22, under the action of gravity, the extension plate 41 moves to the outer side of the blades of the lifting wheel 25, so that the extension plate 41 contacts with the elastic plate 42, and then the mud floating between the blades of the lifting wheel 25 flows to one side of the dirt collection box 22 along the extension plate 41 and the elastic plate 42, and with the continuous rotation of the lifting wheel 25, the elastic plate 42 is gradually pressed, the elastic plate 42 compresses the bottom spring, the bottom spring approaches the surface of the floating plate 21, and the elastic plate 42 and the extension plate 41 generate relative movement until the elastic plate 42 and the extension plate 41 are separated, then the extension plate 41 enters the arc-shaped groove 26 and is limited by the arc-shaped groove 26, so that the extension plate 41 gradually moves to the center of the lifting wheel 25, and after the elastic plate 42 is separated from the extension plate 41, the elastic plate 42 is restored under the action of the bottom spring, so that the mud floating plate 42 is pushed by the floating plate 22 and the mud is guided to the dirt collection box.
As a preferred embodiment of the present invention, the deslagging assembly includes a filter pressing pipe 5, the filter pressing pipe 5 is fixedly connected to the bottom of the sewage collecting tank 22, and the filter pressing pipe 5 is in a communicating design with the inner cavity of the sewage collecting tank 22;
the reciprocating pressure plate 51 is slidably mounted inside the filter pressing pipe 5, and two ends of the reciprocating pressure plate 51 are fixedly connected with a moving rod 52;
the sewage collecting tank 22 is provided with a reciprocating screw 53, two sides of the sewage collecting tank 22 are provided with driving cavities 54, the driving cavities 54 are rotationally connected with the reciprocating screw 53, the reciprocating screw 53 and the transmission wheel set 24 are in belt transmission through a belt, the reciprocating screw 53 is provided with a nut 55, the nut 55 is fixedly connected with the moving rod 52, and the nut 55 and the reciprocating screw 53 are in spiral transmission;
the sludge discharge pipes 56 are symmetrically arranged at the bottom of the filter pressing pipe 5, and the sludge discharge pipes 56 are communicated with the filter pressing pipe 5;
after the floating mud flows into the sewage collection tank 22, under the action of gravity, the floating mud is gathered at the bottom of the sewage collection tank 22 and enters the filter pressing pipe 5 through the communication part between the sewage collection tank 22 and the filter pressing pipe 5, in the process of rotating the impeller 23, the impeller 23 drives the transmission wheel set 24 to rotate through belt transmission, then the transmission wheel set 24 is connected with the reciprocating screw 53 through a belt, belt grooves for mounting the belt are respectively arranged on the shaft of the transmission wheel set 24 and the reciprocating screw 53, two ends of the belt are sleeved on the shaft of the transmission wheel set 24 and the reciprocating screw 53, thereby causing a belt drive between the driving pulley set 24 and the reciprocating screw 53, so that when the driving pulley set 24 rotates, synchronously drives the reciprocating lead screw 53 to rotate, thereby causing the nut 55 on the reciprocating lead screw 53 to convert the rotary motion into parallel motion, since the nut 55 is fixedly coupled to the moving rod 52, when the nut 55 reciprocates on the reciprocating lead screw 53, simultaneously, the moving rod 52 and the reciprocating pressure plate 51 are driven to reciprocate, the reciprocating pressure plate 51 carries out periodic reciprocating motion in the filter pressing pipe 5, floating mud at two ends of the filter pressing pipe 5 is periodically and reciprocally pressed, further drives the floating mud to flow into the mud discharging pipe 56 together with water under the action of pressure, thereby realizing the discharge of the floating mud, by removing the collected floating mud in real time, on the one hand, the storage pressure of the sewage collection tank 22 can be effectively reduced, furthermore, during the design, the volume of the sewage collecting tank 22 is reduced, the manufacturing cost and the occupied space of the equipment are reduced, on the other hand, the collected floating mud is discharged in real time, the influence of the floating mud on the total gravity of the equipment can be reduced, thereby enhancing the suspension stability of the equipment on the liquid surface and facilitating the collection effect of the floating mud on the sewage liquid surface.
As a preferred embodiment of the present invention, an elastic sheet 57 is fixedly connected to a communicating portion between the filter pressing pipe 5 and the dirt collecting box 22, the elastic sheet 57 is provided with a one-way opening, a one-way water removing opening 58 is formed at the bottom of the filter pressing pipe 5, a filter screen is fixedly connected to the one-way water removing opening 58, spring plates 6 are elastically connected to two ends of the filter pressing pipe 5, and the spring plates 6 are located on a moving path of the reciprocating pressing plate 51;
in the process of the periodic reciprocating motion of the reciprocating pressure plate 51, the elastic sheet 57 with the one-way opening and the spring plate 6 are arranged, when the reciprocating pressure plate 51 moves towards one end of the filter pressing pipe 5, the floating sludge in the moving direction is under the action of pressure, the elastic sheet 57 rotates towards the dirt collecting box 22, so that the elastic sheet 57 separates the filter pressing pipe 5 from the dirt collecting box 22, meanwhile, under the continuous pressurizing action, the water flow in the floating sludge with high water content flows outwards through the one-way water removing port 58 at the bottom of the filter pressing pipe 5, and the pressure synchronously acts on the spring plate 6, so that the spring plate 6 moves towards the end part of the filter pressing pipe 5, along with the continuous motion of the spring plate 6, the opening of the sludge discharging pipe 56 is opened, and the floating sludge dehydrated by extrusion flows outwards through the sludge discharging pipe 56, then, after the reciprocating pressure plate 51 moves to the maximum unidirectional stroke, the reciprocating pressure plate 51 moves in the reverse direction to pressurize the floating mud at the other end, negative pressure is formed in the filter pressing pipe 5 after the mud is discharged, the elastic sheet 57 rotates towards the filter pressing pipe 5 under the action of the negative pressure, the floating mud and water in the sewage collecting tank 22 are filled into the filter pressing pipe 5 under the action of gravity, and then the pressurizing, the dewatering and the directional discharging of the floating mud are realized through the reciprocating motion of the reciprocating pressure plate 51, it is clear that the floating mud still contains a large amount of water and still has certain fluidity after being compressed, and the filter screen fixedly connected with the unidirectional water gap 58 can be scraped in the moving process of the reciprocating pressure plate 51, so that the probability of filter screen blockage is reduced.
As a preferred embodiment of the present invention, the bottom of the filter pressing pipe 5 is fixedly connected with a water guiding pipe 61, the water guiding pipe 61 and the one-way water removing port 58 are designed to be communicated, the water guiding pipe 61 extends to the guide plate 3, the water guiding pipe 61 has an opening on the guide plate 3, and the opening directions are all upward;
through setting up aqueduct 61, the mixture of the mud floating in the filter-pressing pipe 5 and water receives behind the pressure boost effect, part water circulation filter screen, one-way water gap 58 that removes gets into in the aqueduct 61, and under the pressure action, flow to the external world along aqueduct 61 opening, because aqueduct 61 opening is perpendicular upwards, therefore aqueduct 61 goes out water and upwards moves, cause the impurity of the guide plate 3 top of slope, rivers receive certain ascending impetus, and then the trend of the little volume mud floating upward movement of reinforcing suspension in sewage, make the mud floating pile up on the liquid level, the lifting wheel 25 of being convenient for is collected the mud floating.
As a preferred embodiment of the present invention, the air deflector 3 is made of a perforated plate, and the holes on the air deflector 3 are gradually dense from top to bottom;
adopt the orifice plate preparation guide plate 3, and guide plate 3 from top to bottom trompil is intensive gradually, consequently after water impact on guide plate 3, the upper strata rivers velocity of flow is slow, the lower floor's rivers velocity of flow is fast, consequently at the whole flow in-process of sewage, can make upper laitance assemble on the guide plate 3 through the flow of rivers, the rivers velocity of flow is slower again, is convenient for salvage, collect the laitance.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An environment-friendly sewage treatment system comprises an oxidation ditch (1), wherein an aeration device is arranged in the oxidation ditch (1), the aeration device continuously aerates the oxidation ditch (1), and one end of the oxidation ditch (1) is externally connected with a sewage discharge device;
the end, far away from the water inlet, of the oxidation ditch (1) is provided with a water outlet, and the water outlet is in conduction connection with the secondary sedimentation tank through a pipeline;
the backflow pump room is used for pumping active sludge at the bottom of the secondary sedimentation tank and conveying the active sludge into the oxidation ditch (1);
the method is characterized in that: the device also comprises a collecting assembly, wherein the collecting assembly is arranged on the oxidation ditch (1) and is used for collecting the floating mud on the liquid surface of the oxidation ditch (1);
the collecting assembly comprises a lifting column (2), and the lifting column (2) is fixedly arranged in the oxidation ditch (1);
the floating plate (21) is connected to the lifting column (2) in a sliding mode, and the floating plate (21) is suspended on the liquid level;
the sewage collection tank (22), the sewage collection tank (22) is fixedly arranged in the middle of the floating plate (21), and the top end of the sewage collection tank (22) is opened;
the lifting device comprises an impeller (23), a transmission wheel set (24) and a lifting wheel (25), wherein the bottom of a floating plate (21) is rotatably connected with the impeller (23) through a guide rod, an arc-shaped groove (26) is formed in the floating plate (21), the lifting wheel (25) is rotatably connected into the arc-shaped groove (26) through the guide rod, the transmission wheel set (24) is installed on the floating plate (21), and the transmission wheel set (24) is respectively in belt transmission with the impeller (23) and the lifting wheel (25) through a belt;
the lifting wheel (25) rotates upwards at one side far away from the sewage collection tank (22), and the lifting wheel (25) is used for conveying floating mud into the sewage collection tank (22);
the slag discharging component is installed on the collecting component, matched with the collecting component and used for guiding floating mud to be discharged.
2. The environmental protection sewage treatment system of claim 1 wherein: dirty case (22) one side fixedly connected with guide plate (3) are kept away from in kickboard (21), it is smooth excessive between guide plate (3) and arc wall (26), guide plate (3) slope sets up, guide plate (3) least significant end aligns with impeller (23) middle part.
3. The environmental protection sewage treatment system of claim 2, wherein: the utility model discloses a lifting wheel, including lifting wheel (25), lifting wheel (25) blade, has seted up on the blade extending groove (4), install on lifting wheel (25) blade and extend board (41), extend board (41) are through extending groove (4) and lifting wheel (25) blade sliding connection.
4. The environmental protection sewage treatment system of claim 3, wherein: evenly distributed micropores are formed in the blades of the lifting wheel (25) and the extension plate (41), and the extension plate (41) is far away from the arc design of one end of the center of the lifting wheel (25).
5. The environmental protection sewage treatment system of claim 4, wherein: dirty case (22) of collection is close to lifting wheel (25) one side and articulates there is springboard (42), springboard (42) arc design, through spring elastic connection between springboard (42) and kickboard (21), dirty case (22) one end of collection is kept away from in springboard (42), is located lifting wheel (25) motion route.
6. The environmental protection sewage treatment system of claim 2, wherein: the slag discharging assembly comprises a filter pressing pipe (5), the filter pressing pipe (5) is fixedly connected to the bottom of the sewage collection box (22), and the filter pressing pipe (5) is communicated with the inner cavity of the sewage collection box (22);
the reciprocating pressure plate (51), the reciprocating pressure plate (51) is slidably mounted inside the filter pressing pipe (5), and two ends of the reciprocating pressure plate (51) are fixedly connected with moving rods (52);
the sewage collecting tank is characterized by comprising a reciprocating lead screw (53), driving cavities (54) are formed in two sides of the sewage collecting tank (22), the reciprocating lead screw (53) is rotationally connected in the driving cavities (54), the reciprocating lead screw (53) and a transmission wheel set (24) are in belt transmission through a belt, a nut (55) is installed on the reciprocating lead screw (53), the nut (55) is fixedly connected with a moving rod (52), and the nut (55) and the reciprocating lead screw (53) are in spiral transmission;
mud pipe (56), mud pipe (56) symmetry is installed in filter-pressing pipe (5) bottom, mud pipe (56) and filter-pressing pipe (5) switch on the design.
7. The environmental protection sewage treatment system of claim 6, wherein: press strainer (5) and dirt collection box (22) switch on a fixed connection elastic sheet (57), elastic sheet (57) one-way opening sets up, one-way mouth of a river (58) of removing has been seted up to press strainer (5) bottom, one-way fixedly connected with filter screen on the mouth of a river (58) of removing, press strainer (5) both ends elastic connection has spring board (6), spring board (6) are located the removal route of reciprocal clamp plate (51).
8. The environmental protection sewage treatment system of claim 7, wherein: the filter pressing pipe (5) bottom fixedly connected with aqueduct (61), aqueduct (61) and one-way water gap (58) that removes switch on the design, aqueduct (61) extend to on guide plate (3), aqueduct (61) are in guide plate (3) upper shed, and the opening direction all up.
9. The environmental protection sewage treatment system of claim 8, wherein: the guide plate (3) is made of a perforated plate, and the holes in the guide plate (3) are gradually dense from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211484657.0A CN115724524A (en) | 2022-11-24 | 2022-11-24 | Environment-friendly sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211484657.0A CN115724524A (en) | 2022-11-24 | 2022-11-24 | Environment-friendly sewage treatment system |
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| CN115724524A true CN115724524A (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211484657.0A Pending CN115724524A (en) | 2022-11-24 | 2022-11-24 | Environment-friendly sewage treatment system |
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| CN213037453U (en) * | 2020-08-21 | 2021-04-23 | 重庆市南川排水有限责任公司 | Dross clearing device of oxidation ditch |
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2022
- 2022-11-24 CN CN202211484657.0A patent/CN115724524A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106807143A (en) * | 2017-03-23 | 2017-06-09 | 荆门尚迪环保科技有限公司 | A kind of fowl and animal excrement forces solid-liquid separating machine |
| CN208136061U (en) * | 2018-03-07 | 2018-11-23 | 中国煤炭地质总局水文地质局 | A kind of sludge of sewage treatment plant filter-pressing device |
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