CN210710931U - Hydraulic stirring anoxic tank biofilm reactor - Google Patents
Hydraulic stirring anoxic tank biofilm reactor Download PDFInfo
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- CN210710931U CN210710931U CN201921308084.XU CN201921308084U CN210710931U CN 210710931 U CN210710931 U CN 210710931U CN 201921308084 U CN201921308084 U CN 201921308084U CN 210710931 U CN210710931 U CN 210710931U
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Abstract
The utility model belongs to the field of wastewater treatment, and relates to a hydraulic stirring anoxic pond biofilm reactor, which comprises a reactor main body, wherein the reactor main body comprises a reaction area and a water distribution area; a guide plate and an effluent weir are arranged in the reaction zone along the direction far away from the water distribution zone; a first circulating system and a second circulating system which are communicated with the reactor main body are arranged on the outer side of the reactor main body, a water inlet pipe and a nitrified liquid return pipe are arranged on the first circulating system, and the circulating direction of the first circulating system is from the reaction area to the water distribution area; the circulation direction of the second circulation system is opposite to that of the first circulation system; the reactor also comprises a water outlet pipe which is communicated with the water outlet weir and is connected to the outside of the reactor main body. The utility model discloses a set up reasonable structural configuration, make the suspension fill abundant fluidization, avoid piling up of packing and the breakage that causes because of mechanical stirring.
Description
Technical Field
The utility model belongs to the waste water treatment field relates to a water conservancy stirring oxygen deficiency pond biofilm reactor.
Background
As environmental requirements become more stringent, the importance of wastewater treatment becomes more and more prominent. The anoxic tank is used as an important treatment device in the wastewater treatment process, has the capability of simultaneously removing nitrogen and carbon, and is widely applied to wastewater treatment.
The traditional anoxic tank adopts an activated sludge process, biochemical reaction is carried out by utilizing activated sludge, removal of pollutants is completed, sludge concentration is an important factor for ensuring removal of the pollutants, the traditional activated sludge method utilizes sludge backflow to ensure normal sludge concentration, then the anoxic tank with fixed filler is developed, the fixed filler is installed in the tank body, a carrier is provided for growth and attachment of microorganisms, the sludge concentration in the reaction tank is increased, and the fixed filler has the defects of inconvenience in installation and maintenance and the like. On the basis, a suspended filler process is developed, suspended fillers are added into the tank body and serve as carriers for growth and attachment of microorganisms, and the problem of maintenance is effectively solved while higher sludge concentration in the tank body is ensured. In order to ensure the rapid growth and reproduction of microorganisms attached to the suspended filler and the effective removal of pollutants, the suspended filler needs to be fully contacted with wastewater, and the fluidization of the suspended filler is realized by adopting a mechanical stirring mode in a traditional anoxic tank, but the following problems exist: (1) the mechanical stirring is easy to cause filler crushing; (2) the mechanical stirring fluidization is uneven, the filler can not be fully and uniformly distributed in the wastewater, and the filler is easy to deposit and accumulate at the bottom and corners of the tank.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a water conservancy stirring oxygen deficiency pond biofilm reactor to realize the abundant fluidization of suspended filler, solve traditional oxygen deficiency pond biofilm reactor suspended filler fluidization inequality, the easy broken problem.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a hydraulic stirring anoxic tank biomembrane reactor comprises a reactor main body, wherein the reactor main body comprises a reaction zone and a water distribution zone; a guide plate and an effluent weir are arranged in the reaction zone along the direction far away from the water distribution zone; a first circulating system and a second circulating system which are communicated with the reactor main body are arranged on the outer side of the reactor main body, a water inlet pipe and a nitrified liquid return pipe are arranged on the first circulating system, and the circulating direction of the first circulating system is from the reaction area to the water distribution area; the circulation direction of the second circulation system is opposite to that of the first circulation system; the reactor also comprises a water outlet pipe which is communicated with the water outlet weir and is connected to the outside of the reactor main body.
Optionally, the second circulation system circulates in the reaction zone from the side close to the water distribution zone to the side far from the water distribution zone.
Optionally, a suspended filler is added in the reaction zone, the reaction zone is separated from the water distribution zone by a water distribution plate, the water distribution plate is provided with water distribution holes with a hole diameter smaller than the outer diameter of the suspended filler, and the effluent weir is provided with through holes with a hole diameter smaller than the outer diameter of the suspended filler.
Optionally, one side of the reaction zone facing the water distribution zone is in a shape of a circular truncated cone, and the diameter of the reaction zone is gradually reduced along the direction close to the water distribution zone.
Optionally, the included angle between the generatrix of the part of the reaction zone in the shape of a circular truncated cone and the side wall of the reactor body is 30-45 degrees.
Optionally, the water distribution zone is in a shape of a "cylinder" with the same diameter as the end of the reaction zone facing the water distribution zone.
Optionally, the effluent weir is disposed around the inner wall of the reaction zone, and comprises an effluent weir side wall and an effluent weir bottom plate.
Optionally, the included angle between the bottom plate of the water outlet weir and the side wall of the reactor body is 120-150 degrees.
Optionally, the guide plate is of a cylinder-like structure and is fixed on the inner wall of the reactor main body through reinforcing ribs.
Optionally, a barrier net with a mesh aperture smaller than the outer diameter of the suspended filler is arranged at the communication position of the first circulating system and the reaction zone; and a blocking net with the mesh aperture smaller than the outer diameter of the suspended filler is arranged at the communication part of the second circulating system and one side of the reaction zone close to the water distribution zone.
The beneficial effects of the utility model reside in that:
the utility model discloses a set up two circulation systems and guide plate and found the inner loop flow field, the second circulation system adopts upper portion tangential to intake, form around the decurrent vortex of reactor main part inner wall spiral between reactor main part inner wall and guide plate outer wall, to the reaction zone bottom, under the impact of first circulation system bottom water distribution, upwards get into inside the guide plate, form and rise the flow, to the guide plate top, under the water conservancy diversion effect of play weir inclined bottom plate, get into decurrent vortex once more, the circulation is reciprocal, the suspension is packed under the effect in this inner loop flow field, fill in the reaction zone and shunt, fully contact with waste water, the accumulation that suspension was packed can effectively be avoided to the play weir bottom plate that reaction zone bottom round platform planar structure and slope set up simultaneously.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a top view of a preferred embodiment of the present invention;
fig. 2 is a schematic front structural view of the preferred embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-2, the reference numbers in the figures refer to the following elements: the device comprises a reactor main body 1, an effluent weir side wall 2, a reinforcing rib 3, a guide plate 4, a water distribution plate 5, a water inlet pipe 6, a nitrifying liquid return pipe 7, a water outlet pipe 8, a first circulating system 9, a second circulating system 10, an effluent weir bottom plate 11, a water distribution area 12 and a reaction area 13.
The utility model relates to a water conservancy stirring oxygen deficiency pond biofilm reactor, including reactor main part 1, play weir, guide plate 4, inlet tube 6, nitrify liquid back flow 7, outlet pipe 8, first circulation system 9 and second circulation system 10, the reactor main part comprises reaction zone 13 and water distribution district 12. Suspension filler is added into the reaction zone 13, the upper part of the reaction zone 13 is of a cylindrical structure, the lower part of the reaction zone 13 is of a round table top structure, the suspension filler is prevented from being accumulated, and preferably, the included angle between a round table top bus and the inner wall of the reactor main body is 30 degrees. The water distribution area 12 is a cylindrical structure, the diameter of the water distribution area is the same as the bottom surface of a round table top at the lower part of the reaction area 13, the water distribution area 12 and the reaction area 13 are separated by a water distribution plate 5, and a plurality of water distribution holes with the aperture slightly smaller than that of the suspended filler are uniformly arranged on the water distribution plate 5. The water inlet and the water outlet of the second circulating system 10 are respectively connected with the lower part and the upper part of the reaction zone 13, the water outlet is tangent with the outer wall of the reactor main body 1, and a blocking net with the mesh aperture slightly smaller than that of the suspended filler is arranged on the water inlet to prevent the filler from entering; the water inlet and the water outlet of the first circulating system 9 are respectively communicated with the upper part of the reaction zone 13 and the water distribution zone 12, similarly, a blocking net with a mesh aperture slightly smaller than that of the suspended filler is arranged on the water inlet to prevent the filler from entering, and the water inlet pipe 6 and the nitrification liquid return pipe 7 are connected with the first circulating system 9; the guide plate 4 is positioned in the middle of the reaction zone 13 and is fixed on the inner wall of the reactor main body 1 through the reinforcing ribs 3, and the guide plate 4 has two cylindrical structures and the diameter is the same as that of the water distribution plate 5; the effluent weir is positioned at the top of the reaction zone 13 and consists of an effluent weir side wall 2 and an effluent weir bottom plate 11, the effluent weir bottom plate 11 is obliquely arranged to play a role in guiding flow and simultaneously avoid filler accumulation, and preferably, the included angle between the effluent weir bottom plate 11 and the inner wall of the reactor body is 135 degrees. Wastewater in the reaction zone 13 enters the second circulating system 10 from the bottom of the reaction zone 13, tangentially enters the reaction zone 13 from a top water outlet, forms a spiral downward vortex in an annular space between the inner wall of the reactor main body 1 and the outer wall of the guide plate 4, reaches the bottom of the reaction zone 13, enters the first circulating system 9 from the top of the reaction zone 13, is mixed with newly-fed wastewater and reflux nitrified liquid of a subsequent unit, enters the water distribution zone 12 through the water outlet, is vertically distributed upwards through the water distribution plate 5, enters the guide plate 4 to form an upward upflow, reaches the top end of the guide plate 4, moves downwards around the inner wall of the reactor main body 1 to the bottom of the reaction zone 13 under the action of the downward vortex, enters a cavity formed by the guide plate 4 under the action of the upflow, rises to the top, enters the downward vortex again under the guide action of the guide plate 11 of the water outlet weir, and, and fully fluidizing. The water outlet pipe 8 is positioned on the outer wall of the reactor main body 1 and is communicated with the effluent weir. The side wall 2 of the water outlet weir and the bottom plate 11 of the water outlet weir are provided with a plurality of through holes with the aperture slightly smaller than that of the suspended filler, wastewater enters the water outlet weir through the through holes, the suspended filler is blocked, the loss of the filler is avoided, and the wastewater then enters the subsequent treatment unit through the water outlet pipe 8.
The utility model has the advantages that:
(1) the accumulation of the filler is avoided and the diversion effect can be achieved through the round table surface structure at the bottom of the reaction zone 13 and the water outlet weir bottom plate 11 which is obliquely arranged.
(2) An internal circulation flow field consisting of an external downward vortex and an internal upward upflow is formed in the reactor through the backflow water distribution with the vertically upward bottom, the tangential backflow water inlet at the top, the guide plate at the middle part of the reaction zone 13 and the inclined water outlet weir bottom plate 11, so that the filler is fully fluidized, and the filler is prevented from being crushed due to mechanical stirring.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. A hydraulic stirring anoxic pond biofilm reactor is characterized in that: the reactor comprises a reactor main body, wherein the reactor main body comprises a reaction area and a water distribution area; a guide plate and an effluent weir are arranged in the reaction zone along the direction far away from the water distribution zone; a first circulating system and a second circulating system which are communicated with the reactor main body are arranged on the outer side of the reactor main body, a water inlet pipe and a nitrified liquid return pipe are arranged on the first circulating system, and the circulating direction of the first circulating system is from the reaction area to the water distribution area; the circulation direction of the second circulation system is opposite to that of the first circulation system; the reactor also comprises a water outlet pipe which is communicated with the water outlet weir and is connected to the outside of the reactor main body.
2. The hydraulically agitated anoxic tank biofilm reactor of claim 1 wherein: the second circulating system circulates in the reaction zone from one side close to the water distribution zone to one side far away from the water distribution zone.
3. The hydraulically agitated anoxic tank biofilm reactor of claim 1 wherein: the reaction zone is internally added with suspended filler and is separated from the water distribution zone by a water distribution plate, the water distribution plate is provided with water distribution holes with the aperture smaller than the outer diameter of the suspended filler, and the water outlet weir is provided with through holes with the aperture smaller than the outer diameter of the suspended filler.
4. The hydraulically agitated anoxic tank biofilm reactor of claim 1 wherein: one side of the reaction zone facing the water distribution zone is in a shape of a circular truncated cone, and the diameter of the reaction zone is gradually reduced along the direction close to the water distribution zone.
5. The hydraulically agitated anoxic tank biofilm reactor of claim 4 wherein: the included angle between the generatrix of the part of the reaction zone in the shape of a truncated cone and the side wall of the reactor main body is 30-45 degrees.
6. The hydraulically agitated anoxic tank biofilm reactor of claim 4 wherein: the water distribution area is in a cylindrical shape, and the diameter of the water distribution area is the same as that of one end of the reaction area facing the water distribution area.
7. The hydraulically agitated anoxic tank biofilm reactor of claim 1 wherein: the water outlet weir is arranged around the inner wall of the reaction zone and comprises a side wall of the water outlet weir and a bottom plate of the water outlet weir.
8. The hydraulically agitated anoxic tank biofilm reactor of claim 7 wherein: the included angle between the bottom plate of the water outlet weir and the side wall of the reactor body is 120-150 degrees.
9. The hydraulically agitated anoxic tank biofilm reactor of claim 1 wherein: the guide plate is of a cylinder-like structure and is fixed on the inner wall of the reactor main body through reinforcing ribs.
10. The hydraulically agitated anoxic tank biofilm reactor of claim 3 wherein: a blocking net with the mesh aperture smaller than the outer diameter of the suspended filler is arranged at the communication part of the first circulating system and the reaction zone; and a blocking net with the mesh aperture smaller than the outer diameter of the suspended filler is arranged at the communication part of the second circulating system and one side of the reaction zone close to the water distribution zone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921308084.XU CN210710931U (en) | 2019-08-13 | 2019-08-13 | Hydraulic stirring anoxic tank biofilm reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921308084.XU CN210710931U (en) | 2019-08-13 | 2019-08-13 | Hydraulic stirring anoxic tank biofilm reactor |
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| CN210710931U true CN210710931U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372092A (en) * | 2019-08-13 | 2019-10-25 | 中冶赛迪技术研究中心有限公司 | A kind of hydraulic mixing anoxic pond biofilm reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372092A (en) * | 2019-08-13 | 2019-10-25 | 中冶赛迪技术研究中心有限公司 | A kind of hydraulic mixing anoxic pond biofilm reactor |
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