CN104275001B - A kind of circular settling tank - Google Patents
A kind of circular settling tank Download PDFInfo
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- CN104275001B CN104275001B CN201410573757.XA CN201410573757A CN104275001B CN 104275001 B CN104275001 B CN 104275001B CN 201410573757 A CN201410573757 A CN 201410573757A CN 104275001 B CN104275001 B CN 104275001B
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Abstract
The present invention relates to technical field of sewage, particularly relate to a kind of circular settling tank.Circular settling tank includes cell body, water inlet, outlet, heavy mud plate and mud collection cylinder, and heavy mud plate is provided with multilamellar, and the upside of each heavy mud plate is both provided with water inlet and outlet, and water inlet and outlet are arranged along the tangential direction of cell body.Circular settling tank provided by the invention, tangentially water-in and water-out, this kind of water intake mode can make sewage form circulation in circular settling tank, add the sewage time of staying in circular settling tank, the effect of settling of mud and the setting of the heavy mud plate of multilamellar can be improved, be equivalent to add many group precipitations pond, under taking identical floor space, add sludge settling area, substantially increase deposition efficiency；Further, since between the heavy mud plate of every two-layer, vertical spacing is less up and down, and the granule of so relatively small particle diameter also can settle down, and enhances sedimentation effect.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of circular multilayer precipitation.
Background technology
Suspended material in current sewage, can precipitate removal under gravity, simultaneously part that can be removed BOD5, improve the service condition of biological treatment structures and reduce BOD5Load.Depositing technology is a kind of physical treatment method, simple, respond well, is one of the important technology of sewage disposal.The direction of pool inner water stream pressed by sedimentation tank, can be divided into rectangular sedimentation tank, radical sedimentation basin, vertical sedimentation basin.
1, rectangular sedimentation tank
Rectangular sedimentation tank is rectangle sedimentation tank, and water (flow) direction is for flow to opposite side along pond length direction from sedimentation tank side, and float in the vertical direction is precipitated at the bottom of pond.Horizontal sedimentation tank cell body floor space is relatively big, also exist current at pond width and depth direction uneven and turbulent problem, sludge settling is inefficient.
2, radical sedimentation basin
Radical sedimentation basin is generally circular or square, is divided into center water inlet, peripheral effluent sedimentation tank and precipitation pool with peripheral by water (flow) direction.
The water inlet pipe of center water inlet peripheral effluent sedimentation tank is at center, pond, spout is located at pond surrounding, because the flow velocity in central draft tube is bigger, when as the secondary sedimentation tank used time, activated sludge is difficult to flocculate in central draft tube, kinetic energy when this strand of current flow downward is relatively big, easily impacts heavy mud at the bottom of pond, and the volumetric efficiency in pond is also less.
Circumferential water feed peripheral effluent radical sedimentation basin flows into groove and peripherally arranges, and bottom land offers water distributing pore and short tube equably, for water distribution.Flow in groove owing to water distribution aperture is less, therefore water distributing pore stopping state often occurs, affects outlet effect.
3, vertical sedimentation basin
Vertical sedimentation basin can with circular or square.Current are intake from center, are radiating to surrounding.In order to pool inner water flow distribution is uniform, Chi Jing is not easily too big, is not suitable for heavy traffic condition.And the flow rate of water flow of vertical sedimentation tank is upwards, and particle precipitation is downward, therefore only has particle sinking speed more than the precipitated removal of energy of flow rate of water flow bulky grain mud, and therefore clearance is less.
Therefore, for above deficiency, it is desirable to provide the sedimentation tank that a kind of deposition efficiency is high, sedimentation effect is good, Precipitation Potential is strong, volumetric efficiency is high.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is the problem that deposition efficiency is low, sedimentation effect is poor, Precipitation Potential is low of traditional sedimentation tank.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of circular settling tank, including: cell body, water inlet, outlet, heavy mud plate and mud collection cylinder, described mud collection cylinder is connected with described heavy mud plate, described heavy mud plate is provided with multilamellar, and the upside of every layer of heavy mud plate is both provided with water inlet and outlet, described water inlet is arranged along the tangential direction of described cell body.
Wherein, described cell body is circular cylindrical cavity, and described water inlet and described outlet are positioned at the top of described cell body, and described outlet and described water inlet are symmetrical about the axis centre of cell body.
Further, the circular cone being shaped as annular of heavy mud plate described in multilamellar, its upper end is connected with described cell body inwall, lower end is all connected with a mud collection cylinder.
Wherein, described each mud collection cylinder is all connected, and is provided with gap between the bottom of next layer of heavy mud plate that is adjacent, the bottom of each described mud collection cylinder.
Wherein, the gradient of described heavy mud plate is 50 °-60 °.
Wherein, also including water inlet pipe, increaser, outlet pipe and reducing pipe, described water inlet pipe is connected with multiple described water inlets by increaser；Described outlet pipe is connected with multiple described outlets by reducing pipe.
Further, described heavy mud plate arranges four layers, and described water inlet and described outlet are each provided with 4 accordingly.
Wherein, also including mud discharging device, described mud discharging device includes: mud-removing bucket, discharge pipeline and mud valve, and described discharge pipeline upper end is connected with mud valve, lower end is connected with described mud-removing bucket, and described mud-removing bucket is positioned at the bottom of described cell body.
Wherein, the horizontal pipe of described discharge pipeline and the distance of the liquid level in the vertical direction in described cell body are more than 1.5 meters.
Further, the material of described heavy mud plate is armored concrete or PP or ABS.
(3) beneficial effect
The technique scheme of the present invention has the advantage that the invention provides a kind of circular settling tank includes cell body, water inlet, outlet, heavy mud plate and mud collection cylinder, described heavy mud plate is provided with multilamellar, and the upside of each heavy mud plate is both provided with water inlet and outlet, described water inlet and described outlet and arranges along the tangential direction of described cell body.The water inlet arranged by tangential direction and outlet, circular settling tank is tangentially intake, the water intake mode of this uniqueness ensure that uniform fluid flow, control less flow velocity, reduce disturbance, and tangentially intake, sewage can form spiral circulation in circular settling tank, and (that is: current first flow downward in outer ring, after in the middle part of cell body, flow up again, helically circulation form, from cell body opposite side water outlet), the form of this circulation increases sewage in circular settling tank residence time, enhances the sedimentation effect of sewage；It addition, the setting of the heavy mud plate of multilamellar, be equivalent to add in pond organize circular settling tank more, when identical floor space, be equivalent to add sludge settling area, substantially increase deposition efficiency, being vertically gravitational settling due to mud granule, therefore the heavy speed meeting of bulky grain mud is more greatly, under identical tanks is deep, the bulky grain sludge settling time can be shorter, first settle down, and the heavy speed of little granule sludge is low, it is necessary to the sedimentation time is long, it is likely to have little time sedimentation, just discharges with sewage.And in pond, arrange the heavy mud plate of multilamellar, owing to the spacing on vertical direction between the heavy mud plate of every two-layer is less, the degree of depth all ratios being equivalent to every layer of pond are shallower, even if the heavy speed of little granule sludge is little, but due to the pond depth, the time needing sedimentation also reduces, and therefore the mud of smaller particle also can settle down, and enhances settlement of sewage effect.
Accompanying drawing explanation
The present invention is above-mentioned and/or the advantage of additional aspect is from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the plan structure schematic diagram of the circular settling tank described in one embodiment of the invention；
Fig. 2 is the sectional structure schematic diagram of the circular settling tank described in one embodiment of the invention.
Wherein in Fig. 1 and Fig. 2, corresponding relation between accompanying drawing labelling and component names is:
1, circular settling tank, 11, cell body, 12, water inlet pipe, 13, outlet pipe, 14, water inlet, 15, outlet, 16, increaser, 17, reducing pipe, 18, heavy mud plate, 19, mud collection cylinder, 2, mud-removing bucket, 3, discharge pipeline, 4, mud valve.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention.
As depicted in figs. 1 and 2, circular settling tank 1 provided by the invention includes: cell body 11, water inlet 14, outlet 15, heavy mud plate 18 and mud collection cylinder 19, described heavy mud plate 18 is provided with multilamellar, and the upside of each heavy mud plate 18 is both provided with water inlet 14 and outlet 15, and described water inlet 14 is arranged along the tangential direction of described cell body 11, described cell body 11 is circular cylindrical cavity, and described water inlet 14 and described outlet 15 are positioned at the top of described cell body 11, and are arranged on the both sides of described cell body 11.By the water inlet 14 arranged along cell body 11 tangential direction and outlet 15, circular settling tank 1 is tangentially intake, the water intake mode of this uniqueness ensure that uniform fluid flow in circular settling tank 1, control less flow velocity, reduce disturbance, and the mode tangentially intake, sewage can form spiral circulation in sedimentation tank, and (that is: current first flow downward in outer ring, after in the middle part of cell body 11, flow up again, helically circulation form, from cell body 11 opposite side water outlet), the form of this circulation increases sewage residence time in sedimentation tank, enhance the sedimentation effect of sewage；It addition, the setting of the heavy mud plate 18 of multilamellar, be equivalent in pond, add many group precipitations pond, when identical floor space, be equivalent to add sludge settling area, substantially increase deposition efficiency；And, owing to the spacing on vertical direction between the heavy mud plate 18 of every two-layer is less, the degree of depth all ratios being equivalent to every layer of pond are shallower, the granule of so relatively small particle diameter also can easily settle down, enhance settlement of sewage effect, substantially increase precipitation hydraulic load and solid loading, more than 3 times can be increased to, under adopting identical sedimentation time, identical floor space, improve Precipitation Potential.
Wherein, heavy mud plate 18 is the conical plate of annular, the gradient of cone plate is between 50 °-60 °, so it is deposited in the mud on heavy mud plate 18 and can slide in the mud collection cylinder 19 being connected with heavy mud plate 18 lower end under the effect of self gravitation, and the heavy mud plate of cone contributes to sewage and forms spiral helicine circulation in sedimentation tank, increase sewage residence time in sedimentation tank, lifting sewage sedimentation effect, preferably, the gradient of cone plate is 55 °；Adjacent mud collection cylinder 19 is connected, and it is provided with gap between bottom and the bottom of next layer of heavy mud plate 18 of described mud collection cylinder 19, do not affect the sedimentation of next layer of heavy mud plate 18 base sludge, and the mud in upper strata mud collection cylinder 19 can enter in next layer of mud collection cylinder 19, final all of mud has been enter in the middle of the mud-removing bucket 2 bottom circular settling tank 1；Such setting can reduce the flowing of the sewage impact on sludge settling in each layer, the sedimentation of last layer mud does not affect the effect of next layer of sludge settling, and at the bottom of the pond of circular settling tank 1, it is additionally provided with mud-removing bucket 2 and discharge pipeline 3, the lower end that is connected with mud valve 4, the upper end of discharge pipeline 3 is connected with mud-removing bucket 2, and mud valve 4 is regularly opened and discharged outside circular settling tank 1 by discharge pipeline 3 by the mud in mud-removing bucket 2；It should be noted that the distance of the horizontal pipe of discharge pipeline 3 and circular settling tank 1 the superiors liquid level in the vertical direction need to more than 1.5 meters, such mud can discharge circular settling tank 1 under the effect of liquid level static pressure.
Circular settling tank 1 also includes water inlet pipe 12, increaser 16, outlet pipe 13 and reducing pipe 17, and water inlet pipe 12 is connected with multiple water inlets 14 by increaser 16；Outlet pipe 13 is connected with multiple outlets 15 by reducing pipe 17, such sewage is introduced into water inlet pipe 12, afterwards in increaser 16 mean allocation to multiple water inlets 14, then sewage in tangential direction is even into circular settling tank 1, owing to being provided with multiple water inlet 14, therefore the current distributed uniform that sewage is in circular settling tank 1, flow velocity is less, turbulent water can be reduced, the tangential current entered form circulation in pond, current first flow downward in outer ring, after in the middle part of cell body 11, flow up again, helically circulation form, from cell body 11 opposite side water outlet.The form of this circulation increases the sewage time of staying in sedimentation tank.Due to current sluggish flow in sedimentation tank, and mud granule is along gravity direction natural subsidence, and therefore to be subject to the disturbance of current less for sludge settling, and sludge settling effect also enhances.
Heavy mud plate 18 described in above-described embodiment can by the selection of multiple material, such as armored concrete, PP, ABS etc..
Certainly, heavy mud plate can also be manufactured by other material, as long as material meets certain intensity; and it is water insoluble so that heavy mud plate will not leak, and just also can realize the purpose of the application; its objective, without departing from the design philosophy of the present invention, should belong to the protection domain of the application.
Below by concrete example, advantages of the present invention is described.
Be 1000m3/h, SS concentration at flow being the sewage of 2000mg/L, entering diameter is 15 meters, and the periphery depth of water is the circular settling tank 1 of 4 meters, adopts 4 layers of heavy mud plate 18, and every layer of gradient is 55 ° of degree, and bottom bucket core is 0.5 meter wide, and surface loading is 5.66m3/m2.h, for more than 3 times of common radial-flow sedimentation tank load, it is meant that floor space is 1/3rd of common radial-flow sedimentation tank.And water outlet SS stably reaches below 15mg/L, outlet effect is ideal.
In sum, a kind of circular settling tank provided by the invention, it is characterized in that: include cell body, water inlet, outlet, heavy mud plate and mud collection cylinder, described heavy mud plate is provided with multilamellar, and the upside of each heavy mud plate is both provided with water inlet and outlet, described water inlet is arranged along the tangential direction of described cell body.The water inlet arranged by tangential direction and outlet, circular settling tank is tangentially intake, the water intake mode of this uniqueness ensure that uniform fluid flow, control less flow velocity, reduce disturbance, and the tangentially mode of water-in and water-out, sewage can form spiral circulation in circular settling tank, and (that is: current first flow downward in outer ring, after in the middle part of cell body, flow up again, helically circulation form, from cell body opposite side water outlet), the form of this circulation increases sewage residence time in circular settling tank, enhances the sedimentation effect of sewage；It addition, the setting of the heavy mud plate of multilamellar, be equivalent to add in pond organize circular settling tank more, when identical floor space, be equivalent to add sludge settling area, substantially increase deposition efficiency；Further, owing to the spacing on vertical direction between the heavy mud plate of every two-layer is less, the degree of depth all ratios being equivalent to every layer of pond are shallower, and the granule of so relatively small particle diameter also can settle down, and enhances settlement of sewage effect
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a circular settling tank, it is characterized in that: include cell body (11), water inlet (14), outlet (15), heavy mud plate (18) and mud collection cylinder (19), described heavy mud plate (18) is arranged in described cell body (11), and described heavy mud plate (18) is connected to described mud collection cylinder (19), described heavy mud plate (18) is provided with multilamellar, and the upside of every layer of heavy mud plate (18) is both provided with water inlet (14) and outlet (15), described water inlet (14) is arranged along the tangential direction of described cell body (11)；
Described cell body (11) is circular cylindrical cavity, described water inlet (14) and described outlet (15) are positioned at the top of described cell body (11), and described outlet (15) and described water inlet (14) are symmetrical about the axis centre of cell body (11)；
The circular cone being shaped as annular of heavy mud plate (18) described in multilamellar, its upper end is connected with described cell body (11) inwall, lower end is all connected with a mud collection cylinder (19)；
Described each mud collection cylinder (19) is all connected, and is provided with gap between the bottom of the heavy mud plate (18) of next layer of being adjacent of the bottom of each described mud collection cylinder (19)；
Also include mud discharging device, described mud discharging device includes: mud-removing bucket (2), discharge pipeline (3) and mud valve (4), described discharge pipeline (3) upper end is connected with mud valve (4), lower end is connected with described mud-removing bucket (2), described mud-removing bucket (2) is positioned at the bottom of described cell body (11), and the mud in mud-removing bucket is discharged by discharge pipeline under the effect of liquid level static pressure.
2. circular settling tank according to claim 1, it is characterised in that: the gradient of described heavy mud plate (18) is 50 °-60 °.
3. circular settling tank according to claim 1, it is characterized in that: also include water inlet pipe (12), increaser (16), outlet pipe (13) and reducing pipe (17), described water inlet pipe (12) is connected with multiple described water inlets (14) by increaser (16)；Described outlet pipe (13) is connected with multiple described outlets (15) by reducing pipe (17).
4. circular settling tank according to claim 3, it is characterised in that: described heavy mud plate (18) is provided with four layers, and described water inlet (14) and described outlet (15) are each provided with 4 accordingly.
5. circular settling tank according to claim 1, it is characterised in that: the distance of the liquid level in the vertical direction in the horizontal pipe of described discharge pipeline (3) and described cell body (11) is more than 1.5 meters.
6. the circular settling tank according to any one of claim 1-5, it is characterised in that: the material of described heavy mud plate (18) is armored concrete or PP or ABS.
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| CN201410573757.XA CN104275001B (en) | 2014-10-23 | 2014-10-23 | A kind of circular settling tank |
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| CN201410573757.XA CN104275001B (en) | 2014-10-23 | 2014-10-23 | A kind of circular settling tank |
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| CN106153584A (en) * | 2016-08-15 | 2016-11-23 | 力合科技（湖南）股份有限公司 | A kind of liquid transparency detection device |
| CN106430409B (en) * | 2016-08-31 | 2023-08-01 | 秦皇岛莱特流体设备制造有限公司 | Sludge concentration equipment |
| CN106823488A (en) * | 2017-02-14 | 2017-06-13 | 北京博汇特环保科技股份有限公司 | Sedimentation basin and the sewage disposal system with it |
| CN112370824B (en) * | 2020-11-24 | 2021-12-14 | 中国水利水电第九工程局有限公司 | Automatic dredging and water cleaning tank of sandstone production wastewater treatment system and use method |
| CN112960868A (en) * | 2021-03-30 | 2021-06-15 | 南京太心动信息技术有限公司 | But biochemical flocculation's sediment device |
| CN113368553B (en) * | 2021-06-17 | 2022-10-18 | 珠海九通水务股份有限公司 | Water treatment device control system and method |
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| FR2689781B1 (en) * | 1992-04-14 | 1994-09-09 | Itera Sa | Clarification device for liquids charged with particles. |
| CN2481391Y (en) * | 2001-05-25 | 2002-03-13 | 湛含辉 | High-efficiency secondary stream settler |
| US8342338B2 (en) * | 2010-03-22 | 2013-01-01 | Hydro International Plc | Separator for separating solids from an influent |
| CN204170462U (en) * | 2014-10-23 | 2015-02-25 | 浦华环保有限公司 | A kind of circular settling tank |
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