CN112174367A - Sewage coagulation filtering separation device for sewage treatment - Google Patents
Sewage coagulation filtering separation device for sewage treatment Download PDFInfo
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- CN112174367A CN112174367A CN202010927308.6A CN202010927308A CN112174367A CN 112174367 A CN112174367 A CN 112174367A CN 202010927308 A CN202010927308 A CN 202010927308A CN 112174367 A CN112174367 A CN 112174367A
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- coagulation
- mixed liquid
- cavity
- sewage
- flocculate
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/15—Use of centrifuges for mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a sewage coagulation filtering separation device for sewage treatment, which comprises a vertical reaction tank, wherein the vertical reaction tank is sequentially provided with a shunt coagulation device and a filtering separation device from top to bottom, the shunt coagulation device comprises a multistage shunt mechanism, a folded plate coagulation mechanism is arranged on one side of the multistage shunt mechanism, a coagulation pre-precipitation mechanism is arranged on one side of the multistage shunt mechanism, which is opposite to the folded plate coagulation mechanism, and the folded plate coagulation mechanism and the coagulation pre-precipitation mechanism are connected with the filtering separation device. Through the rotatory stirring of multistage centrifugation reposition of redundant personnel mechanism, centrifugation reposition of redundant personnel and thoughtlessly congeal preliminary sedimentation mechanism and folded plate and thoughtlessly congeal flocculation once more of mechanism, when promoting sewage and the flocculating agent intensive mixing in the mixed liquid in order to promote sewage by the intensive purification, avoided the stirring to further the negative impact that the flocculation caused, and thoughtlessly congeal flocculation once more of mechanism through coagulating preliminary sedimentation mechanism and folded plate, strengthened the flocculation effect and improved flocculation efficiency.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage coagulation, filtration and separation device for sewage treatment.
Background
The coagulating sedimentation tank is one of sedimentation tanks in waste water treatment. The coagulation process is the most basic and very important treatment process in the treatment of industrial water and domestic sewage, and by adding some medicaments (generally called coagulant and coagulant aid) into water, particles which are difficult to precipitate in the water can be polymerized with each other to form colloid, and then are combined with impurities in the water body to form larger floccules. The flocculating constituent has strong adsorption capacity, can adsorb suspended matters, and can adsorb partial bacteria and soluble substances. The flocs sink down by increasing their volume through adsorption.
At present, the coagulating sedimentation pond includes baffle flocculation basin, whirl flocculation basin, vortex flocculation basin, folded plate flocculation basin, perforation whirl flocculation basin and mechanical flocculation basin, nevertheless because all adopt single flocculation mode, lead to the coagulating sedimentation pond to have the drawback that the flocculation effect is poor or flocculation inefficiency, for example, mechanical flocculation basin is compared in not only flocculation effectual and have the good advantage of adaptability of other flocculation modes, nevertheless owing to promote the flocculation through the mode of mechanical stirring, make the flocculating constituent easy to take place the dispersion, thereby lead to the reduction of flocculation efficiency.
Disclosure of Invention
The invention aims to provide a sewage coagulation, filtration and separation device for sewage treatment, which aims to solve the technical problem that the performance of a coagulation and filtration device is limited due to a single flocculation mode in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a sewage coagulation filtering separation device for sewage treatment comprises a vertical reaction tank, wherein a diversion coagulation device and a filtering separation device are sequentially arranged on the vertical reaction tank from top to bottom, the diversion coagulation device comprises a multistage diversion mechanism, a folded plate coagulation mechanism is arranged on one side of the multistage diversion mechanism, a coagulation pre-precipitation mechanism is arranged on one side of the multistage diversion mechanism relative to the folded plate coagulation mechanism, and the folded plate coagulation mechanism and the coagulation pre-precipitation mechanism are connected with the filtering separation device;
the multi-stage flow dividing mechanism is used for guiding sewage mixed liquor taking sewage as a main component into the folded plate coagulation mechanism through multiple times of centrifugation, the sewage mixed liquor is folded and mixed and flocculated in the folded plate coagulation mechanism for multiple times, and the filtering and separating device is used for filtering and separating the mixed liquor containing the flocculates, which is guided by the folded plate coagulation mechanism and the coagulation and precipitation mechanism, and discharging the flocculates.
As a preferred embodiment of the present invention, the multistage flow dividing mechanism includes a gravity flow type flow dividing tower, a multilayer flow dividing and guiding layer is disposed in the gravity flow type flow dividing tower, the flow dividing and guiding layer includes a mixed liquid introducing cavity and a flocculate mixed liquid discharging cavity sequentially disposed from top to bottom, one side of the mixed liquid introducing cavity and one side of the flocculate mixed liquid discharging cavity are connected by a cyclone centrifugal part, the mixed liquid introducing cavity and the flocculate mixed liquid discharging cavity are provided with a baffle plate on the other side opposite to the cyclone centrifugal part, a sewage mixed liquid discharging cavity is formed between the mixed liquid introducing cavity, the flocculate mixed liquid discharging cavity, the cyclone centrifugal part and the baffle plate, and the cyclone centrifugal part is provided with a plurality of flocculate discharging holes communicated with the flocculate mixed liquid discharging cavity;
the mixed liquid flowing into the sewage mixed liquid leading-out cavity through the mixed liquid leading-in cavity rotates under the flow guiding effect of the rotational flow centrifugal part, the flocculate mixed liquid rotating at the rotational flow centrifugal part is thrown into the flocculate mixed liquid leading-out cavity through the flocculate leading-out hole through centrifugal force, one end of the flocculate mixed liquid leading-out cavity is connected with the coagulation pre-settling mechanism, and the other end, opposite to the coagulation pre-settling mechanism, of the sewage mixed liquid leading-out cavity is connected with the folded plate coagulation mechanism.
In a preferred embodiment of the present invention, the mixed liquid introduction chamber is inclined downward in a direction toward the swirling centrifugal unit, the flocculated mixed liquid discharge chamber is inclined downward in a direction away from the swirling centrifugal unit, and both sides of the mixed liquid introduction chamber and the flocculated mixed liquid discharge chamber which are close to each other are connected tangentially to the swirling centrifugal unit.
As a preferable scheme of the present invention, adjacent ones of the diversion drainage layers are connected by an overflow pipe, one end of the overflow pipe is connected to the baffle plate and penetrates through the sewage mixed liquid outlet chamber, and the other end of the overflow pipe is connected to an inlet of the mixed liquid inlet chamber of the lower diversion drainage layer.
In a preferred embodiment of the present invention, an arc-shaped tube cavity extending to the swirling and centrifugal portion is disposed on a side of the mixed liquid introduction chamber close to the flocculated mixed liquid discharge chamber, the width of the plurality of layers of arc-shaped tube cavities gradually increases from top to bottom toward the outlet of the swirling and centrifugal portion, and the pore diameters of the plurality of layers of flocculated discharge holes gradually increase from top to bottom.
As a preferable aspect of the present invention, the wall of the sewage mixed liquid discharging chamber facing the flocculated mixed liquid discharging chamber is provided with a wave plate extending in the direction of both ends thereof, the surface of the wave plate is gradually inclined downward in the direction facing the plate-folding coagulation mechanism, and the inclination angle of the wave plate in the direction of both ends thereof is smaller than the inclination angle in the direction of both sides thereof.
In a preferred embodiment of the present invention, the wall of the flocculated mixed liquid leading-out chamber, which is away from the corresponding sewage mixed liquid leading-out chamber, is gradually inclined downward in a direction toward the coagulating and pre-precipitating mechanism, and the inclination angles of the wall of the flocculated mixed liquid leading-out chamber in directions of both ends thereof are larger than those in directions of both sides thereof.
As a preferable scheme of the present invention, the coagulating and pre-precipitating mechanism includes a coagulating and pre-precipitating cavity connected to one end of the multiple layers of flocculated mixed liquid leading-out cavities, the bottom of the coagulating and pre-precipitating cavity is connected to the filtering and separating device, a flow guide part in butt joint with the corresponding flocculated mixed liquid leading-out cavity is disposed in the coagulating and pre-precipitating cavity, one side of the multiple layers of flow guide parts, which is far away from the flow-dividing coagulating device, is connected by an inclined plate, the inclined plate is provided with ports in one-to-one correspondence with the flocculated mixed liquid leading-out cavities, and the ports are communicated with the flocculated mixed liquid.
As a preferable scheme of the invention, the folded plate coagulation mechanism comprises a folded plate coagulation cavity connected with one end of the multiple layers of sewage mixed liquid guiding cavities, the bottom of the folded plate coagulation cavity is connected with the filtering and separating device, multiple layers of folded plates arranged at intervals are arranged on both sides of the folded plate coagulation cavity, the folded plate close to one side of the gravity flow type flow dividing tower is in butt joint with the corresponding sewage mixed liquid guiding cavity, the folded plates on both sides are arranged in a staggered manner, and the end, close to the folded plate on both sides, of the folded plate, overlapped in the vertical direction is arranged in a downward inclined manner.
As a preferable scheme of the invention, the filtering and separating device comprises a V-shaped trough plate, one end of the V-shaped trough plate extends to the bottom of the coagulation pre-precipitation cavity, the other end of the V-shaped trough plate extends to the bottom of the folded plate coagulation cavity, a purified water outlet is formed between two ends of the V-shaped trough plate in a penetrating manner, a porous filter plate with two ends respectively bridged over two ends of the purified water outlet is installed on the trough wall of the V-shaped trough plate, a discharge port is formed in one side of the vertical reaction tank, which is located on the porous filter plate, and flocs are arranged in a downward inclined manner on one side of the porous filter plate, which is connected with the floc discharge port.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the rotary stirring and centrifugal shunting of the multistage centrifugal shunting mechanism and the secondary flocculation of the coagulation pre-precipitation mechanism and the folded plate coagulation mechanism, the sewage and the flocculating agent in the mixed liquid are promoted to be fully mixed so as to promote the sewage to be fully purified, meanwhile, the negative influence of the stirring on the further flocculation is avoided, and the preliminarily flocculated flocculate and the mixed liquid which is not flocculated in the initial stage are respectively drained to the coagulation pre-precipitation mechanism and the folded plate coagulation mechanism through the multistage centrifugal shunting mechanism to be flocculated again respectively, so that the flocculation efficiency is improved, and the sewage purification efficiency of the coagulation filtering and separating device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
fig. 2 is a schematic view of a multi-stage flow dividing mechanism according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a vertical reaction tank; 2-a shunt coagulation device; 3-a filtration separation device;
201-a multi-stage flow dividing mechanism; 202-a folded plate coagulation mechanism; 203-a coagulating and pre-precipitating mechanism;
2011-introducing mixed liquid into the cavity; 2012-floc mixed liquor discharge chamber; 2013-cyclone centrifuge; 2014-baffle; 2015-leading out cavity of sewage mixed liquor; 2016-floc exit orifice; 2017-an overflow pipe; 2018-wave plate; 2019-an arc lumen;
2021-folded plate coagulation chamber; 2022-folded plate;
2031-a coagulating and pre-precipitating cavity; 2032-a flow guide; 2033-sloping plate; 2034-interface;
301-V-shaped channel plates; 302-clear water outlet; 303-porous filter plate; 304-floc discharge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, the invention provides a sewage coagulation filtering separation device for sewage treatment, which comprises a vertical reaction tank 1, wherein the vertical reaction tank 1 is sequentially provided with a diversion coagulation device 2 and a filtering separation device 3 from top to bottom, the diversion coagulation device 2 comprises a multi-stage diversion mechanism 201, a folded plate coagulation mechanism 202 is arranged on one side of the multi-stage diversion mechanism 201, a coagulation pre-precipitation mechanism 203 is arranged on one side of the multi-stage diversion mechanism 201 opposite to the folded plate coagulation mechanism 202, and the folded plate coagulation mechanism 202 and the coagulation pre-precipitation mechanism 203 are both connected with the filtering separation device 3.
The mixed liquid containing sewage and flocculating agent is rotated and stirred for a plurality of times in the multistage shunt mechanism 201, flocculate mixed liquid containing more primary flocculates is drained to the coagulation and pre-precipitation mechanism 203 through a plurality of centrifuges, the flocculate mixed liquid is further flocculated in the coagulation and pre-precipitation mechanism 203, the multistage shunt mechanism 201 drains the sewage mixed liquid taking sewage as a main component into the folded plate coagulation mechanism 202 through a plurality of centrifuges, the sewage mixed liquid is folded, mixed and flocculated for a plurality of times in the folded plate coagulation mechanism 202, and the filtering and separating device 3 filters and separates the mixed liquid containing the flocculates led in by the folded plate coagulation mechanism 202 and the coagulation mechanism and then discharges the flocculates.
In this embodiment, the multistage distribution mechanism 201 promotes the rotation of the mixed liquid by guiding the mixed liquid, and the mixed liquid is promoted to rotate a plurality of times to mix or further mix the sewage with the flocculant, and the flocculant mixed with the sewage causes the impurities suspended in the sewage to adsorb each other to form flocs in the form of clusters. Generally, the size of the corresponding sieve pore is usually set according to the volume of the sorted materials during centrifugal separation, in this embodiment, when the flocs rotate along with the mixed liquid, the flocs are thrown to the periphery of the rotating part of the mixed liquid under the action of centrifugal force, and pass through the corresponding sieve pore along with part of the mixed liquid under the action of centrifugal force, so that the mixed liquid forms a floc mixed liquid containing more primary flocs and a sewage mixed liquid taking sewage as a main component after being shunted, and the floc mixed liquid and the sewage mixed liquid are respectively drained to the coagulation pre-precipitation mechanism 203 and the folded plate coagulation mechanism 202 for flocculation again.
This embodiment carries out the rotatory stirring many times to constantly pouring into mixed liquid through multistage centrifugation reposition of redundant personnel mechanism to flocculate once more in drainage to coagulating sedimentation mechanism 203 after the centrifugation is shunted to the flocculation that produces among the rotation stirring process, not only have the flocculation of stirring flocculation mode effectual, head loss is little, adaptable quality of water, the advantage of water yield change, and avoided the stirring to lead to the fact the drawback of negative effect to the further flocculation of flocculation. The flocculate mixed liquor after being drained to the coagulation pre-precipitation mechanism 203 and purified is beneficial to adsorption aggregation and sedimentation among small flocculates due to the increase of the content of the flocculate, thereby being beneficial to accelerating the purification speed of the flocculate mixed liquor.
The sewage mixed liquid generated by centrifugal diversion is guided to the folded plate coagulation mechanism 202, the structure and principle of the folded plate coagulation mechanism 202 and the folded plate 2022 coagulation tank are the same or similar, that is, the folded plate coagulation mechanism 202 is provided with a plurality of folded plates 2022 which are alternately reversed, and the sewage mixed liquid alternately flows on the surfaces of the folded plates 2022 and is flocculated.
In the embodiment of the invention, by the rotary stirring and centrifugal shunting of the multistage centrifugal shunting mechanism and the secondary flocculation of the coagulation pre-precipitation mechanism 203 and the folded plate coagulation mechanism 202, the sewage and the flocculating agent in the mixed solution are promoted to be fully mixed to promote the sewage to be fully purified, meanwhile, the negative influence of the stirring on the further flocculation is avoided, in addition, the preliminarily flocculated flocculate and the mixed solution which is not flocculated in the initial stage are respectively drained to the coagulation pre-precipitation mechanism 203 and the folded plate coagulation mechanism 202 through the multistage centrifugal shunting mechanism 201 to be flocculated again, the flocculation efficiency is improved, and the sewage purification efficiency of the coagulation filtering and separating device 3 is improved.
Wherein, multistage reposition of redundant personnel mechanism 201 includes the gravity flow reposition of redundant personnel tower, be provided with the reposition of redundant personnel drainage layer of multilayer in the gravity flow reposition of redundant personnel tower, reposition of redundant personnel drainage layer is including mixed liquid import chamber 2011 and the mixed liquid of flocculation thing that sets gradually from top to bottom exports chamber 2012, one side that mixed liquid import chamber 2011 and mixed liquid of flocculation thing are exported chamber 2012 is connected through whirl centrifugation portion 2013, mixed liquid import chamber 2011 and mixed liquid of flocculation thing are exported chamber 2012 and are provided with baffle 2014 for whirl centrifugation portion 2013's opposite side, mixed liquid import chamber 2011, mixed liquid of flocculation thing exports chamber 2012, be formed with mixed liquid of sewage and export chamber 2015 between whirl centrifugation portion 2013 and the baffle 2014, set up a plurality of flocculation thing guide holes that intercommunication mixed liquid of flocculation thing exports chamber 2012.
The mixed liquid flowing into the sewage mixed liquid guide cavity 2015 through the mixed liquid guide cavity 2011 rotates under the guide effect of the cyclone centrifugal part 2013, the mixed liquid rotating in the cyclone centrifugal part 2013 throws the produced flocculate mixed liquid into the flocculate mixed liquid guide cavity 2012 through a flocculate guide hole by centrifugal force, one end of the flocculate mixed liquid guide cavity 2012 is connected with the coagulation and pre-precipitation mechanism 203, and the other end of the sewage mixed liquid guide cavity 2015, which is opposite to the coagulation and pre-precipitation mechanism 203, is connected with the folded plate coagulation mechanism 202.
The multi-layer shunting diversion layer is sequentially arranged from top to bottom, the vertical section of the cyclone centrifugal part 2013 is a semicircular arc plate, the mixed liquid in the mixed liquid leading-in cavity 2011 flows towards the cyclone centrifugal part 2013 along the tangential direction of the top end of the cyclone centrifugal part 2013 and rotates along the concave surface of the cyclone centrifugal part 2013, namely the cavity wall on one side of the sewage mixed liquid leading-out cavity 2015, in the process that the mixed liquid rotates along the surface of the cyclone centrifugal part 2013, the mixing of flocculating agent and sewage in the mixed liquid is promoted, flocculate generated in the mixed liquid moves towards the concave surface of the cyclone centrifugal part 2013 under the action of centrifugal force, flocculate at the concave surface of the cyclone centrifugal part 2013 is thrown into the flocculate mixed liquid cavity together with partial mixed liquid through a flocculate leading-out hole under the action of centrifugal force, and the rest of the mixed liquid does not reach the flocculate leading-out hole to form sewage mixed liquid which further flows in, and the sewage mixed liquid flows into the folded plate coagulation mechanism 202 through the sewage mixed liquid guide cavity 2015 for coagulation again.
What further optimizes on above-mentioned embodiment is that mixed liquor import chamber 2011 is in the direction of keeping away from whirl off-center portion 2013 downward sloping gradually, and mixed liquid of flocculation thing exports chamber 2012 and is keeping away from whirl off-center portion 2013 direction downward sloping gradually, and mixed liquid of flocculation thing exports the exit side that chamber 2011, mixed liquid of flocculation thing educes chamber 2012 and mixed liquid of sewage and exports chamber 2015 and all sets up downwards promptly, is favorable to reducing head loss, reduces because of the negative effects that head loss caused flocculation reaction.
It is further optimized in the above embodiment that adjacent shunting drainage layers are connected through overflow pipe 2017, one end of overflow pipe 2017 is connected with baffle 2014 and penetrates to sewage mixed liquid leading-out cavity 2015, and the other end of overflow pipe 2017 is connected with the inlet of mixed liquid leading-in cavity 2011 of lower shunting drainage layer.
When the mixed liquid entering the upper sewage outlet cavity is excessive, the excessive mixed liquid in the sewage outlet cavity can be centrifugally shunted again in the lower separation diversion layer through the overflow pipe 2017 and the lower mixed liquid inlet cavity, on one hand, the self-regulation capability of the diversion coagulation device 2 is increased, so that the coagulation pre-precipitation mechanism 203 and the folded plate coagulation mechanism 202 can be ensured to operate in respective high-performance treatment flow states, and the efficiency of sewage coagulation purification is ensured; on the other hand, in the unnecessary mixed liquid in time flow into the flocculate mixed liquid through the flocculate eduction hole and derive the flocculate of chamber 2012, flow into lower floor by overflow pipe 2017 along with unnecessary mixed liquid and shunt and flocculate in the drainage layer once more, avoided the reduction of reposition of redundant personnel drainage layer utility, and help forming the flocculate of great reunion form in the multilayer diversion layer, reduced folded plate coagulation body 202's load, and help coagulating sedimentation body 203 in the quick polymerization of flocculate, thereby further improve coagulating sedimentation body 203's flocculation efficiency.
In the above embodiment, it is further preferable that an arc-shaped tube cavity 2016 extending to the cyclone centrifugal portion 2013 is provided on a side of the mixed liquid introduction cavity 2011 close to the flocculated mixed liquid discharge cavity 2012, and the width of the plurality of layers of arc-shaped tube cavities 2016 gradually increases from top to bottom toward the outlet of the cyclone centrifugal portion 2013.
Set up the aim at of arc lumen 2016, further lead to mixed liquid when mixed liquid gushes to hydrocyclone separation portion to lead to mixed liquid not rotatory and direct downflow sewage mixed liquid of hydrocyclone separation portion to derive in the chamber 2015 when avoiding the flood peak not enough. And in order to guarantee or be favorable to mixed liquid when surging to the hydrocyclone separation portion by arc lumen 2016, the flocculation thing in the mixed liquid is located rotatory mixed liquid periphery to help the flocculation thing can be preferred to pass through flocculation thing eduction hole, set up the export of arc lumen 2016 to the width that is equivalent to every layer of flocculation thing volume size, avoid too much flocculation thing promptly to surging to the hydrocyclone separation portion along with too much mixed liquid and lead to the flocculation thing can't overcome the buoyancy of mixed liquid at the effect of centrifugal force and lead to the drawback of the quick motion of flocculation thing eduction hole.
And the function that flocculates is carried out in the multilayer reposition of redundant personnel drainage layer for a plurality of times with partial sewage mixed liquor suits, and the width of a plurality of arc pipe exports from top to bottom increases gradually to the outflow of the nodular flocculation thing of adaptation volume increase gradually.
Similarly, the aperture of the multiple layers of floc discharge holes from top to bottom gradually increases to adapt to the flow of the gradually increased volume of the floc from the floc discharge holes into the floc mixed liquid discharge chamber 2012.
It is further optimized in the above embodiment that the wave plates 2018 extending in the directions of both ends of the sewage mixed liquid discharge cavity 2015 and the wall of the floc mixed liquid discharge cavity 2012 are installed on the cavity wall, i.e. the sewage mixed liquid passes through the wave plates 2018 when flowing towards the overflow pipe 2017, similar to the flocculation principle of the folded plate 2022, and the creep sewage mixed liquid is flocculated on the wave plates 2018 to assist in increasing the flocculation speed of the sewage mixed liquid in the folded plate coagulation mechanism 202 and increasing the floc volume in the floc mixed liquid in the multi-layer shunt drainage layer, thereby further increasing the flocculation efficiency.
The surface of the corrugated plate 2018 is gradually inclined downwards in the direction towards the folded plate coagulation mechanism 202, so that the sewage mixed liquid flows downwards to the folded plate coagulation mechanism 202 through self weight, in addition, in order to avoid that the sewage mixed liquid flows to the folded plate coagulation mechanism 202 too fast and the sewage mixed liquid is not guided to flow downwards on the corrugated plate 2018 for enough time, the inclination angles of the corrugated plate 2018 in the directions of the two ends of the corrugated plate 2018 are smaller than those in the directions of the two sides of the corrugated plate 2018, so that the speed of the sewage mixed liquid flowing to the folded plate coagulation mechanism 202 is reduced, and the function of the corrugated plate 2018 for promoting the sewage mixed liquid to further flocculate.
What further optimizes on above-mentioned embodiment is, the chamber wall that the mixed liquid of flocculation derivation chamber 2012 kept away from corresponding sewage mixed liquid derivation chamber 2015 is in the downward sloping gradually towards coagulating sedimentation mechanism 203, the same reason, in order to realize that the mixed liquid of flocculation flows to coagulating sedimentation mechanism 203 through the dead weight, and in order to avoid the mixed liquid of the unnecessary sewage in upper strata to cause the reposition of redundant personnel drainage layer load of lower floor to increase or even overload and lead to the reduction of whole flocculation effect in shunting drainage layer, mixed liquid of flocculation derivation chamber 2012 is greater than the inclination in its both ends direction at the inclination of chamber wall of both ends direction of chamber 2012, accelerate mixed liquid of flocculation in mixed liquid of flocculation derivation chamber 2012 and mix the speed of leading to coagulating sedimentation mechanism 203, in order to prevent to cause the conflict with the mixed liquid of sewage that overflow pipe 2017 flowed in and lead to the drawback that whole.
Wherein, it leads out the coagulation preliminary sedimentation chamber 2031 of chamber 2012 one end including connecting multilayer flocculate mixed liquor to coagulate preliminary sedimentation mechanism 203, coagulate preliminary sedimentation chamber 2031 bottom and filter separator 3 and be connected, it leads out the water conservancy diversion portion 2032 that chamber 2012 docks with corresponding flocculate mixed liquor to be provided with in coagulating preliminary sedimentation chamber 2031, multilayer water conservancy diversion portion 2032 keeps away from shunting coagulation device 2 one side and passes through swash plate 2033 and connect, set up on the swash plate 2033 and lead out the interface 2034 of chamber 2012 one-to-one with flocculate mixed liquor, interface 2034 leads out the chamber 2012 and is linked together through water conservancy diversion portion 2032 and flocculate mixed liquor.
Flocculate mixed liquor sequentially flows to the inclined plate 2033 through the flow guide part 2032 and the interface 2034, and flows to the filtering and separating device 3 at the bottom of the coagulation retention flocculate mixed liquor guide-out cavity 2012 along the inclined plate 2033, so that the flocculate mixed liquor is prevented from directly falling to the filtering and separating device 3 to cause the dispersion of internally formed granular flocculate due to impact, and the service life of the filtering and separating device 3 is prolonged.
Wherein, the folded plate coagulation mechanism 202 comprises a folded plate coagulation cavity 2021 connected with one end of the multi-layer sewage mixed liquid guiding cavity 2015, the bottom of the folded plate coagulation cavity 2021 is connected with the filtering and separating device 3, both sides of the folded plate coagulation cavity 2021 are provided with a plurality of layers of folded plates 2022 arranged at intervals, one side folded plate 2022 close to the gravity flow type flow-dividing tower is butted with the corresponding sewage mixed liquid guiding cavity 2015, the two side folded plates 2022 are arranged in a staggered way, and the end of the two side folded plates 2022 close to and overlapped in the vertical direction is arranged in a downward sloping way, the folded plate coagulation mechanism 202 and the folded plate 2022 coagulation pool which is vertically distributed by the folded plate 2022 have the same or similar structure and principle, have the advantage of good flocculation effect, and the sewage mixed liquid flowing into the folded plate coagulation cavity 2021 has formed with large-mass flocculates, further improve the flocculation effect of the folded plate coagulation mechanism 202, which is beneficial, the defect of higher cost of the folded plate 2022 flocculation mode is improved.
The filtering and separating device 3 comprises a V-shaped groove plate 301, one end of the V-shaped groove plate 301 extends to the bottom of the coagulating and pre-precipitating cavity 2031, the other end of the V-shaped groove plate 301 extends to the bottom of the folded plate coagulating cavity 2021, a purified water outlet 302 is arranged between two ends of the V-shaped groove plate 301 in a penetrating manner, a porous filter plate 303 with two ends respectively bridged at two ends of the purified water outlet 302 is arranged on the groove wall of the V-shaped groove plate 301, a flocculate outlet 304 is arranged on one side of the vertical reaction tank 1, which is located at the porous filter plate 303, and one side of the porous filter plate 303, which is connected with the flocculate.
The porous filter plate 303 is transversely bridged over the purified water outlet 302, the pore diameter of the pores on the porous filter plate 303 is far smaller than the volume of final flocculate, so as to prevent the filter pores on the flocculate porous filter plate 303 from falling into the purified water outlet 302, while the porous filter plate 303 inclined towards the flocculate outlet 304 enables the filtered flocculate to flow out from the flocculate outlet 304 through self weight and the flushing action of mixed liquor, in order to ensure the flatness of the top of the porous filter plate 303 and prevent the flocculate from being embedded into the filter pores when moving on the porous filter plate 303, the top of the porous filter plate 303 can be provided with a filter screen, a filter membrane and the like, which are common.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. The utility model provides a sewage coagulating, filtering and separating device for sewage treatment which characterized in that: the reaction tank comprises a vertical reaction tank (1), wherein a shunt coagulation device (2) and a filtering separation device (3) are sequentially arranged on the vertical reaction tank (1) from top to bottom, the shunt coagulation device (2) comprises a multistage shunt mechanism (201), a folded plate coagulation mechanism (202) is arranged on one side of the multistage shunt mechanism (201), a coagulation pre-precipitation mechanism (203) is arranged on one side, opposite to the folded plate coagulation mechanism (202), of the multistage shunt mechanism (201), and the folded plate coagulation mechanism (202) and the coagulation pre-precipitation mechanism (203) are connected with the filtering separation device (3);
the mixed liquid containing sewage and flocculating agent is rotated and stirred for a plurality of times in the multistage shunting mechanism (201) and flows flocculate mixed liquid containing more primary flocculates into the coagulation and pre-sedimentation mechanism (203) through a plurality of centrifuges, the flocculate mixed liquid is further flocculated in the coagulation and pre-sedimentation mechanism (203), the multistage shunting mechanism (201) flows the sewage mixed liquid taking sewage as a main component into the folded plate coagulation mechanism (202) through a plurality of centrifuges, the sewage mixed liquid is folded and mixed and flocculated for a plurality of times in the folded plate coagulation mechanism (202), and the filtering and separating device (3) filters and separates the mixed liquid containing flocculates introduced by the folded plate coagulation mechanism (202) and the coagulation and sedimentation mechanism and then discharges the flocculates.
2. The coagulation, filtration and separation device for sewage treatment according to claim 1, wherein: the multistage shunting mechanism (201) comprises a self-flowing shunting tower, a plurality of shunting drainage layers are arranged in the self-flowing shunting tower, the shunting and drainage layer comprises a mixed liquor leading-in cavity (2011) and a flocculate mixed liquor leading-out cavity (2012) which are arranged from top to bottom in sequence, one side of the mixed liquid leading-in cavity (2011) and one side of the flocculate mixed liquid leading-out cavity (2012) are connected through a rotational flow centrifugal part (2013), a baffle plate (2014) is arranged on the other side of the mixed liquor leading-in cavity (2011) and the flocculate mixed liquor leading-out cavity (2012) relative to the rotational flow centrifugal part (2013), a sewage mixed liquor leading-out cavity (2015) is formed among the mixed liquor leading-in cavity (2011), the flocculate mixed liquor leading-out cavity (2012), the cyclone centrifugal part (2013) and the baffle (2014), a plurality of flocculate leading-out holes communicated with the flocculate mixed liquid leading-out cavity (2012) are formed in the rotational flow centrifugal part (2013);
the mixed liquor flowing into the sewage mixed liquor guide cavity (2015) through the mixed liquor guide cavity (2011) rotates under the flow guide effect of the rotational flow centrifugal part (2013), the mixed liquor rotating in the rotational flow centrifugal part (2013) throws the produced flocculate mixed liquor into the flocculate mixed liquor guide cavity (2012) through the flocculate guide hole by centrifugal force, one end of the flocculate mixed liquor guide cavity (2012) is connected with the coagulation and pre-precipitation mechanism (203), and the other end of the sewage mixed liquor guide cavity (2015) opposite to the coagulation and pre-precipitation mechanism (203) is connected with the folded plate coagulation mechanism (202).
3. The coagulation, filtration and separation device for sewage treatment according to claim 2, wherein: the mixed liquid introducing cavity (2011) is gradually inclined downwards in the direction towards the rotational flow centrifugal part (2013), the flocculate mixed liquid leading-out cavity (2012) is gradually inclined downwards in the direction away from the rotational flow centrifugal part (2013), and the sides, close to each other, of the mixed liquid introducing cavity (2011) and the flocculate mixed liquid leading-out cavity (2012) are tangentially connected with the rotational flow centrifugal part (2013).
4. The coagulation, filtration and separation device for sewage treatment according to claim 2, wherein: it is adjacent be connected through overflow pipe (2017) between the reposition of redundant personnel drainage layer, the one end of overflow pipe (2017) with baffle (2014) are connected and run through to sewage mixed liquid derives chamber (2015), the other end and the lower floor of overflow pipe (2017) reposition of redundant personnel drainage layer mixed liquid leading-in chamber (2011) entry is connected.
5. The coagulation, filtration and separation device for sewage treatment according to claim 2, wherein: one side that mixed liquid import chamber (2011) is close to mixed liquid of flocculation thing exports chamber (2012) is provided with arc lumen (2016) that extends to whirl centrifugal portion (2013), multilayer from top to bottom arc lumen (2016) towards the export width of whirl centrifugal portion (2013) increases gradually, and multilayer from top to bottom the aperture of flocculation thing eduction hole increases gradually.
6. The coagulation, filtration and separation device for sewage treatment according to claim 2, wherein: the sewage mixed liquid leading-out cavity (2015) is provided with wave plates (2018) extending in the directions of the two ends of the sewage mixed liquid leading-out cavity towards the wall of the flocculated mixed liquid leading-out cavity (2012), the surfaces of the wave plates (2018) are gradually inclined downwards in the direction towards the folded plate coagulation mechanism (202), and the inclination angles of the wave plates (2018) in the directions of the two ends of the wave plates are smaller than those in the directions of the two sides of the wave plates.
7. The coagulation, filtration and separation device for sewage treatment according to claim 2, wherein: the wall of the flocculated mixed liquid leading-out cavity (2012) far away from the corresponding sewage mixed liquid leading-out cavity (2015) is gradually inclined downwards in the direction towards the coagulating and pre-precipitating mechanism (203), and the inclination angles of the wall of the flocculated mixed liquid leading-out cavity (2012) in the directions of the two ends of the wall are larger than those in the directions of the two sides of the wall.
8. The coagulation, filtration and separation device for sewage treatment according to claim 2, wherein: coagulating sedimentation mechanism (203) including connecting the multilayer coagulating sedimentation chamber (2031) of mixed liquid of flocculation derivation chamber (2012) one end, coagulating sedimentation chamber (2031) bottom with filter separator (3) are connected, be provided with in coagulating sedimentation chamber (2031) with corresponding mixed liquid of flocculation derivation chamber (2012) is docked water conservancy diversion portion (2032), the multilayer water conservancy diversion portion (2032) are kept away from one side of reposition of redundant personnel coagulation device (2) and are connected through swash plate (2033), seted up on swash plate (2033) with mixed liquid of flocculation derivation chamber (2012) one-to-one interface (2034), interface (2034) pass through water conservancy diversion portion (2032) with mixed liquid of flocculation derivation chamber (2012) is linked together.
9. The coagulation, filtration and separation device for sewage treatment according to claim 8, wherein: the folded plate coagulation mechanism (202) comprises a folded plate coagulation cavity (2021) connected with multiple layers of one end of a sewage mixed liquid guide cavity (2015), the bottom of the folded plate coagulation cavity (2021) is connected with the filtering and separating device (3), folded plates (2022) arranged at intervals are arranged on two sides of the folded plate coagulation cavity (2021), one side of the gravity flow type flow dividing tower is close to the folded plate (2022) and the corresponding sewage mixed liquid guide cavity (2015) in butt joint, the folded plates (2022) are arranged in a staggered mode, and the folded plates (2022) are arranged on two sides of the folded plate coagulation mechanism and are close to each other and arranged in a downward inclined mode at one end overlapped in the vertical direction.
10. The coagulation, filtration and separation device for sewage treatment according to claim 9, wherein: the filtering and separating device (3) comprises a V-shaped groove plate (301), one end of the V-shaped groove plate (301) extends to the bottom of the coagulating and pre-precipitating cavity (2031), the other end of the V-shaped groove plate (301) extends to the bottom of the folded plate coagulating cavity (2021), a water purifying outlet (302) is formed between the two ends of the V-shaped groove plate (301) in a penetrating mode, a porous filter plate (303) is installed on the groove wall of the V-shaped groove plate (301), two ends of the porous filter plate are respectively bridged on the two ends of the water purifying outlet (302), the vertical reaction tank (1) is located on one side of the porous filter plate (303) and is provided with a flocculate outlet (304), and the porous filter plate (303) and one side connected with the flocculate outlet (304) are downwards inclined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010927308.6A CN112174367A (en) | 2020-09-07 | 2020-09-07 | Sewage coagulation filtering separation device for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010927308.6A CN112174367A (en) | 2020-09-07 | 2020-09-07 | Sewage coagulation filtering separation device for sewage treatment |
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| Publication Number | Publication Date |
|---|---|
| CN112174367A true CN112174367A (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010927308.6A Withdrawn CN112174367A (en) | 2020-09-07 | 2020-09-07 | Sewage coagulation filtering separation device for sewage treatment |
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| Country | Link |
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| CN (1) | CN112174367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939119A (en) * | 2021-05-14 | 2021-06-11 | 诸城市人民医院 | Tower-type purifying equipment for medical wastewater treatment |
-
2020
- 2020-09-07 CN CN202010927308.6A patent/CN112174367A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939119A (en) * | 2021-05-14 | 2021-06-11 | 诸城市人民医院 | Tower-type purifying equipment for medical wastewater treatment |
| CN112939119B (en) * | 2021-05-14 | 2021-08-03 | 诸城市人民医院 | Tower-type purifying equipment for medical wastewater treatment |
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Application publication date: 20210105 |