CN214115175U

CN214115175U - Novel internal circulation clarification tank

Info

Publication number: CN214115175U
Application number: CN202023007351.5U
Authority: CN
Inventors: 危杏; 胡翌珣
Original assignee: Zhongxu Biotechnology Wuhan Co ltd
Current assignee: Zhongxu Biotechnology Wuhan Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-03
Anticipated expiration: 2030-12-15

Abstract

The utility model provides a novel inner loop clarification tank, it includes the box, the vertical two first baffles that are provided with in the box, the vertical two second baffles that are provided with between two first baffles, form the clarification district between first baffle and the box inner wall, form the area of falling stream between two second baffles, form the area of falling stream between first baffle and the second baffle, the area of rising stream is linked together with the area of falling stream, and the area of falling stream is linked together with the clarification district, the area of rising stream bottom is provided with the inlet tube, the inlet tube below is provided with the aeration pipe, it is provided with the pencil that falls the district top of falling stream, clarification district top is provided with the pipe chute filler, is provided with the outlet pipe on the box lateral wall at clarification district top place. The utility model discloses an inner loop clarification tank through the aeration circulation, can make mud flocculus circulation backward flow to go on to flocculus mud high efficiency flocculation and precipitation, mud after the while deposits falls into the bottom half, can not influence and cause the aeration pipe normal work, thereby improve sewage separation efficiency.

Description

Novel internal circulation clarification tank

Technical Field

The utility model relates to a waste water treatment technical field especially relates to a novel inner loop depositing reservoir.

Background

In the water treatment industry, a clarification tank is a structure integrating a flocculation reaction process and a clarification solid-liquid separation process. The method is widely applied to a water treatment process flow, and the principle of the method is that an active sludge area with high-concentration large particles is formed in a pool, raw water after medicine is added is in contact flocculation with flocs with high-concentration large particles in the area, so that the collision, adsorption and combination opportunities of the micro flocs in the raw water and the coarse particles are increased, and the effect of removing the micro flocs is achieved. The clarification tank has been used for removing suspended matters in water for over 70 years, has various types, and is divided into more than 50 types according to the water inlet mode and the stirring mode. At present, although the movement, collision and coalescence processes of the flocculation particles in common clarification tanks on the market are all multifaceted, the mechanisms of collision, coalescence and the like among the flocculation particles are basically the same, and the mode of mutual collision and coalescence of the particles mostly adopts a mechanical stirring mode.

The settling pond in a mechanical stirring form has some problems, the aeration and stirring equipment is installed at the bottom of the pond, and the stirring strength is weak, so that larger sedimentation floc particles are not enough to be stirred again to return mixed liquid, the sludge backflow effect is weakened, the normal operation of an aerator is influenced, the sludge backflow effect is weakened, and the effect of a medicament is further reduced.

Moreover, most of the floc particles are precipitated in the aeration zone and cannot enter the precipitation zone, so that the sludge cannot be discharged in time, the tank body needs to be emptied and cleaned regularly, and the equipment cannot run normally and continuously.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a novel inner loop depositing reservoir solves prior art's depositing reservoir and has mud and influence the normal operating of aeration pipe easily, leads to mud circulation backward flow inefficiency, the problem that floc flocculation inefficiency.

The technical scheme of the utility model is realized like this: the utility model provides a novel inner loop clarification tank, it includes the box, the vertical two first baffles that are provided with in the box, the vertical two second baffles that are provided with between two first baffles, form the clarification district between first baffle and the box inner wall, form the area of rising between two second baffles, form the area of falling stream between first baffle and the second baffle, the area of rising stream is linked together with the area of falling stream, and the area of falling stream is linked together with the clarification district, the area of rising stream bottom is provided with the inlet tube, the inlet tube below is provided with the aeration pipe, the area of falling stream top is provided with the pencil that adds, clarification district top is provided with the pipe filler, is provided with the outlet pipe on the box lateral wall at clarification district top place.

On the basis of the above technical scheme, preferably, a plurality of first flow guide protrusions are arranged on the side wall of the first partition plate and the side wall of the second partition plate in the down-flow area, the first flow guide protrusions are arranged at equal intervals in the vertical direction, the longitudinal section of each first flow guide protrusion is triangular, and the first flow guide protrusions on the first partition plate and the first flow guide protrusions on the second partition plate are arranged in a staggered manner.

Further, preferably, a first guide plate is arranged at the bottom of the first partition plate, and the first guide plate inclines towards the bottom of the downflow zone.

Further, it is preferable that the bottom of the tank body opposite to the clarification area is provided with a mud guide plate, the mud guide plate is parallel to the first guide plate, the highest end of the mud guide plate is fixedly connected with the inner side wall of the tank body where the clarification area is located, the lowest end of the mud guide plate is fixedly connected with the bottom surface of the tank body where the bottom of the down-flow area is located, and a sludge backflow channel is formed between the first guide plate and the mud guide plate.

Further, preferably, the included angle between the mud guide plate and the bottom surface of the box body is 45-60 degrees.

A second flow guide bulge is arranged on the bottom surface of the box body under the upflow region, the longitudinal section of the second flow guide bulge is triangular, and the included angle between the second flow guide bulge and the bottom of the box body is 45-60 degrees.

On the basis of the technical scheme, preferably, a perforated sludge discharge pipe is arranged on the bottom surface of the box body where the bottom of the flow descending area is located.

Further, preferably, the bottom of the box body at two sides of the perforated sludge discharge pipe is provided with a high-pressure flushing water pipe.

Preferably, a plurality of water outlet holes are formed in the surface of the water inlet pipe at equal intervals, and a plurality of water inlet holes are formed in the water outlet pipe at equal intervals.

The utility model discloses following beneficial effect has for prior art:

(1) the utility model discloses a novel internal circulation clarification tank, through setting up first baffle and second baffle, divide the box into upwelling district, downwelling district and clarification district, through setting up the inlet tube bottom upwelling district, the inlet tube bottom sets up the aeration pipe, and set up the dosing pipe at downwelling district top, pour into solid-liquid mixture into upwelling district through the inlet tube, under the effect of aeration pipe, utilize the air-lift principle, suspended sludge flows into the downwelling district from the upwelling district, and react with the coagulant aid that drops into in the downwelling district and combine, flocculate into large granule flocculus, large granule flocculus falls into downwelling district bottom because of the dead weight, small granule flocculus enters into the clarification district under the fluid push effect, contact flocculation through the pipe filler, and form the suspended sludge layer, the mixed liquor that rises obtains the clarified effluent through the filtration of suspended sludge layer, discharging the flocculated sewage from the tank via the water outlet pipe in the top of the clarifying area, circulating the formed large granular flocs back to the down-flow area, and flocculating the flocs and the chemical in the up-flow area and the down-flow area under the action of the circulating fluid. The utility model discloses an inner loop clarification tank through the aeration circulation, can make mud flocculus circulation backward flow to go on to flocculus mud high efficiency flocculation and precipitation, mud after the while deposits falls into the bottom half, can not influence and cause the aeration pipe normal work, thereby improve sewage separation efficiency.

(2) A plurality of first flow guide bulges are arranged on the side wall of the first partition board and the side wall of the second partition board in the flow reducing area, and the first flow guide bulges on the first partition board and the first flow guide bulges on the second partition board are arranged in a staggered mode. Can make mixed liquid constantly change its rivers direction when flowing, make the floc of suspended state and the protruding collision that overturns of taking place of first water conservancy diversion, make the air in the floc release, the floc can combine with the medicament rapidly, accomplishes the flash mixed reaction of medicament, waste water and circulation mud sediment, and then improves the reaction efficiency of floc and medicament, reduces the medicament and throws the volume.

(3) Through set up the perforation sludge discharge pipe in the district bottom that falls, can in time aspirate the sedimentary mud of bottom half, set up high-pressure wash water pipe simultaneously, can prevent that the drill way of perforation sludge discharge pipe from being blockked up by the floccule of sediment.

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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the novel internal circulation clarification tank disclosed by the utility model;

fig. 2 is a top view of the novel internal circulation clarification tank disclosed by the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1, combine fig. 2, the embodiment of the utility model discloses a novel inner loop clarification tank, it includes box 1, box 1 is square structure, vertically in the box 1 be provided with two first baffles 2, vertically between two first baffles 2 be provided with two second baffles 3, form clarification area 11 between first baffle 2 and the 1 inner wall of box, form upflow district 12 between two second baffles 3, form downflow district 13 between first baffle 2 and the second baffle 3, it is preferred, two first baffles 2 and two second baffles 3 homogeneous phases set up to box 1 central mid-section symmetry, from this, make two downflow district 13 sizes equal, two clarification area 11 sizes equal.

The two ends of the first partition board 2 and the second partition board 3 are respectively fixedly connected with the front side wall and the rear side wall of the box body 1, and the bottoms of the first partition board and the second partition board are not connected with the bottom of the box body 1, so that the flow rising area 12 is communicated with the flow falling area 13, the flow falling area 13 is communicated with the clarification area 11, the bottom of the flow rising area 12 is provided with the water inlet pipe 4, the water inlet pipe 4 is horizontally inserted along the front side wall and the rear side wall of the box body 1, preferably, the surface of the water inlet pipe 4 is provided with a plurality of water outlet holes 41 at equal intervals, sewage in the water inlet pipe 4 can uniformly enter the flow rising area 12 through the water outlet holes, and uniform water distribution of the sewage is realized. The aeration pipe 5 is arranged below the water inlet pipe 4, air is blown into the upflow zone 12 through the aeration pipe 5, under the action of air lifting, solid-state in sewage, liquid and gas three-phase mixture are in a suspension flow state and flow to the downflow zone 13, the top of the downflow zone 13 is provided with the dosing pipe 6, coagulant aid can be added into the downflow zone 13 through the dosing pipe 6, sludge floc particles are rapidly flocculated to form flocs with larger volume, one part of large flocs fall into the bottom of the downflow zone 13 due to self weight, the other part of mixed liquid enters the clarification zone 11 under the action of aeration lifting, the inclined pipe filler 8 is arranged above the clarification zone 11, contact flocculation is carried out through the inclined pipe filler 8, a suspended sludge layer is formed, the ascending mixed liquid is filtered through the suspended sludge layer to obtain clarified effluent, and the tank body 1 is discharged from the water outlet pipe 7 at the top of the clarification zone 11.

By adopting the technical scheme, under the action of the aeration pipe 5, the suspended sludge flows into the down-flow area 13 from the up-flow area 12 by utilizing the pneumatic lifting principle, and reacts and combines with coagulant aid put into the flow-down zone 13 to flocculate into large granular floccules, the large granular floccules fall into the bottom of the flow-down zone 13 due to self weight, the small granular floccules enter the clarification zone 11 under the action of fluid push, the contact flocculation is carried out through the inclined tube filler 8, a suspended sludge layer is formed, the ascending mixed liquor is filtered through the suspended sludge layer to obtain clarified effluent, the effluent is discharged out of the box body 1 from a water outlet pipe 7 at the top of the clarification zone 11, large-particle floccule formed in the clarification zone 11 circularly flows back to the down-flow zone 13, under the driving action of the circulating fluid, the combined flocculation of the floccules and the medicament is carried out again in the upflow zone 12 and the downflow zone 13, so that more floccules are flocculated and separated. The utility model discloses an inner loop depositing reservoir through the aeration circulation, can make mud flocculus circulation backward flow to carry out the high efficiency flocculation and precipitation to flocculus mud, mud after the sediment simultaneously falls into 1 bottom of box, can not influence and cause 5 normal work of aeration pipe, thereby improve sewage separation efficiency.

In order to make the floc particles flocculate with the coagulant aid faster in the downflow zone 13 to form large flocs, the utility model adopts the technical scheme that: a plurality of first flow guide bulges 20 are arranged on the side wall of the first partition plate 2 and the side wall of the second partition plate 3 in the down-flow area 13, the first flow guide bulges 20 are arranged at equal intervals in the vertical direction, the longitudinal section of each first flow guide bulge 20 is triangular, and the first flow guide bulges 20 on the first partition plate 2 and the first flow guide bulges 20 on the second partition plate 3 are arranged in a staggered manner. By adopting the technical scheme, the flow direction of the mixed liquid can be continuously changed when the mixed liquid flows, the flocs in the suspension state and the first flow guide protrusions 20 are overturned and collided, air in the flocs is released, the flocs can be rapidly combined with the coagulation assistant agent, the rapid mixing reaction of the agent, the wastewater and the circulating sludge is completed, the reaction efficiency of the flocs and the agent is further improved, and the adding amount of the agent is reduced.

As the preferred embodiment of the present invention, the first baffle 21 is disposed at the bottom of the first partition board 2, and the first baffle 21 is inclined toward the bottom of the down-flow area 13. The bottom of the box body 1 opposite to the clarification area 11 is provided with a mud guide plate 111, the mud guide plate 111 is parallel to the first guide plate 21, the highest end of the mud guide plate 111 is fixedly connected with the inner side wall of the box body 1 where the clarification area 11 is located, the lowest end of the mud guide plate 111 is fixedly connected with the bottom surface of the box body 1 where the bottom of the down-flow area 13 is located, and a sludge backflow channel 112 is formed between the first guide plate 21 and the mud guide plate 111. By adopting the technical scheme, the inclined first guide plate 21 is arranged at the bottom of the first clapboard 2, and a sludge return channel 112 is formed between the first guide plate 21 and the sludge guide plate 111 by arranging the sludge guide plate 111 parallel to the first guide plate 21, on one hand, under the action of the circulating fluid, the mixed liquid in the down-flow area 13 is changed in flow direction by the first guide plate 21 to circulate to the up-flow area 12 under the action of the fluid, meanwhile, when the flowing direction is changed, part of the mixed liquor can be blocked by the second partition plate 3 to flow towards the direction of the clarification zone 11, the mixed liquor enters the clarification zone 11 through the sludge return channel 112, the inclined tube filler 8 is used for contact flocculation, a suspended sludge layer is formed, large-particle floccules formed on the inclined tube filler 8 in the clarification zone 11 slide down onto the sludge guide plate 111 due to self weight, and circularly flow back to the down-flow zone 13 through the sludge backflow channel 112 to obtain sediment.

Preferably, the included angle between the mud guide plate 111 and the bottom surface of the box body 1 is 45-60 degrees. Therefore, the flocculent sludge can quickly slide into the downcast zone 13 after falling onto the sludge guide plate 111, and the sludge circulation backflow is realized.

As some preferred embodiments, a second flow guide protrusion 9 is arranged on the bottom surface of the box body 1 right below the flow rising area 12, the longitudinal section of the second flow guide protrusion 9 is triangular, and the included angle between the second flow guide protrusion 9 and the bottom of the box body 1 is 45-60 degrees. By adopting the technical scheme, the second flow guide bulge 9 in a triangular shape is arranged, on one hand, under the action of pneumatic lifting, large granular floccules precipitated at the bottom of the downflow zone 13 cannot circularly enter the upflow zone 12 due to the self weight under the action of fluid and the obstruction of the second flow guide bulge 9, so that the part of large floccule sludge can be precipitated at the bottom of the downflow zone 13 so as to be discharged out of the box body 1. On the other hand, a part of the neutral flocs can move along the inclined plane of the second guide protrusion 9 toward the ascending flow region 12 under the action of pneumatic lifting circulation, so that the part of the medium flocs enters the ascending flow region 12, and the medium flocs flow into the descending flow region 13 along with the sewage under the action of aeration circulation, so that the medium flocs and the coagulant aid are further flocculated to obtain large-particle flocs, and the large-particle flocs are precipitated in the descending flow region 13, so that more flocs in the sewage can be separated and precipitated, and clear water meeting the standard is obtained after solid-liquid separation.

In order to discharge the box 1 with the large granule flocculus that deposits in the zone 13 that falls, the utility model discloses a scheme be provided with perforation mud pipe 10 in the 1 bottom surface of 13 bottom places boxes in the zone that falls. Thereby, the precipitated sludge can be sucked from the perforations of the perforated sludge discharge pipe 10 and discharged outside the tank 1 by the suction device.

In order to avoid blockage of the holes of the perforated sludge discharge pipe 10 by sludge, the bottom of the box body 1 where the two sides of the perforated sludge discharge pipe 10 are located is provided with the high-pressure flushing water pipe 101, so that the sludge blocked in the holes can be flushed by utilizing high-pressure flushing, and the sludge suction of the perforated sludge discharge pipe 10 is prevented from being influenced.

In some preferred embodiments, the surface of the water inlet pipe 4 is provided with a plurality of water outlet holes 41 at equal intervals, and the water outlet pipe 7 is provided with a plurality of water inlet holes 71 at equal intervals. Adopt such technical scheme, inlet tube 4 surface equidistant be provided with a plurality of apopores, sewage in the inlet tube 4 can be through the even entering into of apopore in rising class district 12, realize the even water distribution of sewage. The outlet pipe 7 in this embodiment sets up in the box 1 of clarification district 11 top, and the both ends of outlet pipe 7 respectively with box 1 around lateral wall fixed connection, so, can carry out a plurality of boxes 1 and establish ties the arrangement around, all inlet tubes 4 link to each other in proper order, and all outlet pipes 7 link to each other in proper order, and the water in the clear water district of clarification district 11 top flows into outlet pipe 7 through the inlet opening to discharge outside the box 1. Therefore, a plurality of clarification tanks are connected in series, thereby improving the sewage separation and clarification efficiency.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel inner loop depositing reservoir, its includes box (1), its characterized in that: two first partition boards (2) are vertically arranged in the box body (1), two second partition boards (3) are vertically arranged between the two first partition boards (2), a clarification area (11) is formed between the first partition boards (2) and the inner wall of the box body (1), an up-flow area (12) is formed between the two second partition boards (3), a down-flow area (13) is formed between the first partition boards (2) and the second partition boards (3), the upflow zone (12) is communicated with the downflow zone (13), the downflow zone (13) is communicated with the clarification zone (11), a water inlet pipe (4) is arranged at the bottom of the upwash area (12), an aeration pipe (5) is arranged below the water inlet pipe (4), the top of the downcast area (13) is provided with a dosing pipe (6), an inclined pipe filler (8) is arranged above the clarification area (11), and a water outlet pipe (7) is arranged on the side wall of the box body (1) where the top of the clarification area (11) is located.

2. The new internal circulation clarifier according to claim 1, characterized in that: a plurality of first flow guide bulges (20) are arranged on the side wall of the first partition plate (2) and the side wall of the second partition plate (3) in the flow reducing area (13), the first flow guide bulges (20) are arranged at equal intervals in the vertical direction, the longitudinal section of each first flow guide bulge (20) is triangular, and the first flow guide bulges (20) on the first partition plate (2) and the first flow guide bulges (20) on the second partition plate (3) are arranged in a staggered mode.

3. The new internal circulation clarifier according to claim 1, characterized in that: the bottom of the first partition plate (2) is provided with a first guide plate (21), and the first guide plate (21) inclines towards the bottom of the downflow zone (13).

4. A novel internal circulation clarifier according to claim 3, characterized in that: the bottom of the box body (1) opposite to the clarification area (11) is provided with a mud guide plate (111), the mud guide plate (111) is parallel to the first guide plate (21), the highest end of the mud guide plate (111) is fixedly connected with the inner side wall of the box body (1) where the clarification area (11) is located, the lowest end of the mud guide plate (111) is fixedly connected with the bottom surface of the box body (1) where the bottom of the downdraft area (13) is located, and a sludge backflow channel (112) is formed between the first guide plate (21) and the mud guide plate (111).

5. The new internal circulation clarifier according to claim 4, characterized in that: the included angle between the mud guide plate (111) and the bottom surface of the box body (1) is 45-60 degrees.

6. The new internal circulation clarifier according to claim 5, characterized in that: a second flow guide bulge (9) is arranged on the bottom surface of the box body (1) below the upflow region (12), the longitudinal section of the second flow guide bulge (9) is triangular, and the included angle between the second flow guide bulge (9) and the bottom of the box body (1) is 45-60 degrees.

7. The new internal circulation clarifier according to claim 6, characterized in that: and a perforated sludge discharge pipe (10) is arranged on the bottom surface of the box body (1) at the bottom of the downcast area (13).

8. The new internal circulation clarifier according to claim 7, characterized in that: and a high-pressure washing water pipe (101) is arranged at the bottom of the box body (1) at the two sides of the perforated sludge discharge pipe.

9. The new internal circulation clarifier according to claim 1, characterized in that: the surface of the water inlet pipe (4) is provided with a plurality of water outlet holes (41) at equal intervals, and the water outlet pipe (7) is provided with a plurality of water inlet holes (71) at equal intervals.