CN110860113A - Water outlet equipment for removing floating mud in upflow water treatment structure - Google Patents
Water outlet equipment for removing floating mud in upflow water treatment structure Download PDFInfo
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- CN110860113A CN110860113A CN201911219866.0A CN201911219866A CN110860113A CN 110860113 A CN110860113 A CN 110860113A CN 201911219866 A CN201911219866 A CN 201911219866A CN 110860113 A CN110860113 A CN 110860113A
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- bending
- weir
- water treatment
- water
- treatment structure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 238000005452 bending Methods 0.000 claims abstract description 91
- 239000010802 sludge Substances 0.000 claims description 19
- 239000002893 slag Substances 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000195628 Chlorophyta Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2494—Feed or discharge mechanisms for settling tanks provided with means for the removal of gas, e.g. noxious gas, air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses a water outlet device for removing floating mud in an upflow water treatment structure, which comprises: the water outlet weir is transversely arranged in the water treatment structure, and two ends of the water outlet weir are connected with the side wall of the water treatment structure and positioned at the top in the water treatment structure; the two bending scum baffles are bending structure plate bodies formed by vertical sections and bending sections; the two bending scum baffles are respectively arranged at two sides of the effluent weir and are respectively fixedly connected with the effluent weir through a plurality of connecting rods, the bending sections at the bottoms of the two bending scum baffles face the bottom of the effluent weir, and the lowest edge of the bending section of each bending scum baffle is positioned right below the effluent weir and ends on a vertically downward extension line of the side wall of the effluent weir; the height of the two bending scum baffles extending out of the water surface of the water treatment structure is consistent with the height of the water outlet weir extending out of the water surface of the water treatment structure. This water outlet equipment can block the gas that makes the parcel hold in the palm mud and the separation of flocculent mud, holds back flocculent mud, obtains better pushing off the sediment and the fender mud effect under the efficient prerequisite of not influencing the play water.
Description
Technical Field
The invention relates to the field of water treatment equipment, in particular to water outlet equipment for removing floating mud in an upflow water treatment structure.
Background
An effluent weir is one type of overflow weir commonly used on top of water treatment structures or tray structures. Liquid at the top of the reactor overflows into the weir groove from the weir port of the water outlet weir, and is collected into the pipeline through the weir groove and transported to the downstream. In the water treatment industry, effluent weirs often require different functions, such as automatic water level adjustment, capping to prevent microbial growth, etc., depending on the needs of downstream processes.
The effluent weir is generally divided into a weir crest and a weir segment; the weir segments are equidistantly opened according to the effluent load, and when the liquid level in the reactor reaches the lowest part of the weir port, the liquid starts to flow into the effluent weir and is discharged. The maximum flow load of the effluent weir is the flow load of the liquid when the weir is full of liquid. For a water treatment structure which discharges water by using a water outlet weir, large floating slag such as floating mud, fallen leaves, fibers and the like often exists on the surface of the water treatment structure, for example, in a secondary sedimentation tank or other structures, nitrogen is generated due to denitrification, the problem that the nitrogen-entrained sludge floats upwards exists, and the water quality and the appearance of discharged water are influenced. If manual slag salvaging is adopted, the workload is huge and potential safety hazards exist. Therefore, in order to remove the scum, the design that the height of the effluent weir can be adjusted, the effluent weir can be detached, the effluent weir can be automatically cleaned and the like is adopted, so that the effluent weir has a relatively complex structure, is high in cost and is prone to failure. To two heavy ponds, often erect the shower on the suction dredge, spray through the shower, can wash the mud floating to the pond edge, hang into row's cinder notch with mud floating and debris by the mud scraper on the suction dredge again, nevertheless adopt the shower to wash away the mode of mud floating, the spray water speed is great, has seriously destroyed the water upper strata flow state, causes torrent and backward flow, and then disturbance mud is at the precipitation efficiency of bottom of the pool, also can cause more mud come-ups.
At present, have through setting up rectilinear baffle as pushing off the sediment structure in the play weir outside, solve and adopt the shower to wash the flow state change and the mud come-up problem that the mud caused, nevertheless at a play weir overflow in-process, rivers between rectilinear baffle and the play weir are perpendicular upward direction, directly flow through a play weir mouth, can't block the mud floating, form the blind spot that keeps off the mud floating, influence play water quality of water and pleasing to the eye.
Disclosure of Invention
Based on the problems in the prior art, the invention aims to provide a water outlet device for removing floating mud in an upflow water treatment structure, which can solve the problem that in the overflow process of an effluent weir, in the slag blocking structure of the conventional vertical baffle, effluent water flow in the vertical upward direction between the vertical baffle and the effluent weir directly flows out through a weir port of the effluent weir, so that the effluent water flow cannot block the floating mud, a dead zone for blocking the floating mud is formed, and the effluent water quality and the appearance are influenced.
The purpose of the invention is realized by the following technical scheme:
the embodiment of the invention provides a water outlet device for removing floating mud in an upflow water treatment structure, which comprises:
the water outlet weir, the connecting rods and the two bending scum baffles; wherein,
the water outlet weir is transversely arranged in the water treatment structure, two ends of the water outlet weir are fixedly connected with the side wall of the water treatment structure, and the water outlet weir is positioned at the inner top of the water treatment structure and is positioned at the same plane position with the water surface in the water treatment structure;
the two bending floating slag baffles have the same structure and are bending structure plate bodies formed by upper vertical sections and bottom bending sections;
the two bending scum baffles are respectively arranged at two sides of the effluent weir and are respectively fixedly connected with the effluent weir through a plurality of connecting rods, the bending sections at the bottoms of the two bending scum baffles face the bottom of the effluent weir, and the lowest edge of the bending section of each bending scum baffle is positioned right below the effluent weir and is stopped on a vertically downward extension line of the side wall of the effluent weir;
the height of the two bending scum baffles extending out of the water surface of the water treatment structure is consistent with the height of the water outlet weir extending out of the water surface of the water treatment structure.
According to the technical scheme provided by the invention, the water outlet equipment for removing floating mud in the upflow water treatment structure provided by the embodiment of the invention has the beneficial effects that:
the bending floating slag baffle plate is of a bending structure with the bottom being a bending section and is arranged on two sides of the water outlet weir respectively, the bending section of the bending floating slag baffle plate is located under the water outlet weir, and is located on a vertical downward extension line of the side wall of the water outlet weir, so that the bending section of the bending floating slag baffle plate blocks the bottom of the water outlet weir and an opening between the bending floating slag baffle plates, vertical upward water flow is enabled to pass through the bending floating slag baffle plate firstly, the bending section of the bending floating slag baffle plate can be blocked, the gas and flocculent sludge which are wrapped by the sludge can be separated under the bending floating slag baffle plate, the gas overflows upwards, the sludge sinks, and flocculent sludge is retained, and the flocculent sludge and the floating slag are prevented from flowing into the water outlet weir along. The water outlet equipment of the structure is not complex in structure, cost and energy consumption cannot be increased, water outlet of the water outlet weir cannot be influenced, and the problem that the existing vertical baffle plate which can be well solved has no mud blocking dead zone, floating mud flows out along with water flow, and water quality of the water outlet is influenced is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a plan view of an installation state of a water discharging apparatus for removing floating mud in an upflow water treatment structure according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the water outlet apparatus at A-A in FIG. 1;
fig. 3 is a schematic view of a bending scum baffle of the water outlet apparatus according to the embodiment of the present invention;
the parts corresponding to each mark in the figure are: 1-an effluent weir; 2-a connecting rod; 3-bending a scum baffle; 4-side walls of water treatment structures; 5-floating mud.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the specific contents 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 embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.
As shown in fig. 1 and 2, an embodiment of the present invention provides an effluent apparatus for removing floating mud in an upflow water treatment structure, including: the water outlet weir, the connecting rods and the two bending scum baffles;
the water outlet weir, the connecting rods and the two bending scum baffles are arranged on the bottom of the water tank; wherein,
the water outlet weir is transversely arranged in the water treatment structure, two ends of the water outlet weir are fixedly connected with the side wall of the water treatment structure, and the water outlet weir is positioned at the inner top of the water treatment structure and is positioned at the same plane position with the water surface in the water treatment structure;
the two bending floating slag baffles have the same structure and are bending structure plate bodies formed by upper vertical sections and bottom bending sections;
the two bending scum baffles are respectively arranged at two sides of the effluent weir and are respectively fixedly connected with the effluent weir through a plurality of connecting rods, the bending sections at the bottoms of the two bending scum baffles face the bottom of the effluent weir, and the lowest edge of the bending section of each bending scum baffle is positioned right below the effluent weir and is stopped on a vertically downward extension line of the side wall of the effluent weir;
the height of the two bending scum baffles extending out of the water surface of the water treatment structure is consistent with the height of the water outlet weir extending out of the water surface of the water treatment structure.
Among the above-mentioned water equipment, the dross baffle of bending is bent the dog-ear between section and the vertical section for the obtuse angle, preferably: 120 degrees. It can be known that the dog-ear between the bending section and the vertical section of the scum baffle of bending can also be an arc structure, and the dog-ear structure is easier to process.
In the above water outlet device, the vertical distance d between the side wall of the water outlet weir and the vertical section of the corresponding bending scum baffle1The vertical distance d between the bottom angle of the effluent weir and the bending section of the corresponding bending scum baffle2Are equal. The structure can ensure that the width of the water outlet channel between the water outlet weir and the bending scum baffle is the same, and the water outlet is smoother.
In the above water outlet equipment, the top of the water outlet weir is provided with a top cover. Green algae can be prevented from appearing on the effluent weir.
In the water outlet equipment, the height of the two bending scum baffles extending out of the water surface of the water treatment structure is consistent with the height of the water outlet weir extending out of the water surface of the water treatment structure, so that the two bending scum baffles are kept consistent with the water outlet weir in elevation, and scum or floating mud is prevented from overflowing from the upper parts of the bending scum baffles, and the scum blocking is prevented from losing efficacy.
Preferably, both ends of the effluent weir are fixedly connected with the side wall of the water treatment structure through expansion bolts.
The water outlet equipment can be arranged in a plurality of groups at intervals according to the size of the upflow water treatment structure, and as shown in figure 1, three groups of the water outlet equipment are arranged on the water treatment structure. If the method of flushing floating mud by using the spray pipes is adopted, the flow state of the upper layer of the water body is seriously damaged due to high spray water speed, so that turbulent flow and backflow are caused, and the sedimentation efficiency of the mud at the bottom of the pool is disturbed. By arranging the water outlet equipment, scum or floating mud which possibly enters the water outlet weir is decanted by the two bent scum baffles of the bent structure.
The embodiments of the present invention are described in further detail below.
The invention provides a water outlet device for removing floating mud in an up-flow water treatment structure, which can effectively block floating slag and floating flocculent mud, is arranged in the water treatment structure (which can be a sedimentation tank) and comprises: the device comprises an effluent weir 1, two bending scum baffles 3 and a plurality of connecting rods 2; wherein, both ends of the effluent weir 1 are respectively installed on the side wall of the water treatment structure through expansion bolts, one end of the connecting rod 2 is fixedly connected with the bending scum baffle 3, the other end of the connecting rod 2 is installed on the side wall of the effluent weir through expansion bolts, the two bending scum baffles 3 are respectively arranged on both sides of the effluent weir 1, the upper part of each bending scum baffle 3 is a vertical section, the bottom part is a bending section, the bending angle between the vertical section and the bending section is an obtuse angle, preferably 120 degrees, the lowest edge of the bending section of each bending scum baffle 3 is positioned under the effluent weir 1 and is stopped on a vertical downward extension line of the side wall of the effluent weir, the bending section of the bending scum baffle 3 is stopped in an opening between the effluent weir 1 and the bending scum baffle 3, thus, the bending scum baffle can block the gas wrapping the sludge, the gas wrapping the sludge is separated from the flocculent sludge, and the gas overflows upwards, the sludge sinks, thereby intercepting flocculent sludge; the vertical distance d between the effluent weir 1 and the vertical section of the bending scum baffle 31And the vertical distance d between the bending sections2The same, can guarantee like this that the width of outlet channel is unanimous, makes the water outlet smooth and easy. The top of the water outlet weir is provided with a top cover which can prevent the growth of algae. The height of the bending scum baffle extending out of the water surface is consistent with the height of the weir plate extending out of the water surface. Then, according to the calculation, the proper number of stages of effluent weirs are installed on the top of the water treatment structure.
Examples
The embodiment provides a water outlet device for removing floating mud in an upflow water treatment structure, which is applied above a biochemical pool of a certain sewage treatment plant, wherein the biochemical pool adopts a top overflow drainage method to discharge water. Before the water outlet device is used, the water quality of the outlet water contains floating flocculent sludge, and the SS of the outlet water is maintained between 25mg/L and 35 mg/L. The size of the water outlet weir 1 of the water outlet device is designed and calculated as follows:
the width and the height of the effluent weir 1 are 40cm and the water depth of the effluent weir is 5mm, and the water depth in the weir is 15 cm; the bending scum baffle 3 is arranged at the outer side of the effluent weir 1 by 25cm, the length of the vertical section of the bending scum baffle 3 is designed to be 51.9cm, the actual processing length is 52cm, and the upper part of the bending scum baffle 3 is flush with the top of the effluent weir 1; the bending section of the bending scum baffle 3 is designed to be 28.9cm in length, the actual processing length is 29cm, and the lower part of the bending section extends to the position right below the weir plate of the effluent weir 1; the narrowest part between the weir plate and the baffle plate of the water outlet weir is 25cm, the widest part is 29cm, the cross section of the water outlet weir is increased by 16 percent, and the flow velocity is reduced to 87 percent of the original velocity. After the water outlet device is installed, the lower bending section of the scum baffle 3 is bent to effectively block floating sludge, and the SS of the outlet water is reduced to 5-10 mg/L.
Because baffle is mostly the rectilinear baffle before traditional play weir, at the overflow in-process, rivers between rectilinear baffle and the play weir board are perpendicular upward direction, directly flow through the weir crest, can't block the mud of floating, form the blind spot that keeps off the mud of floating. The water outlet equipment can well solve the problem that the traditional vertical baffle cannot block the dead zone of floating mud, the vertically upward water flow firstly passes through the bending section of the bent floating slag baffle, the gas carrying the sludge is separated from the flocculent sludge on the bending section of the bent floating slag baffle, the gas overflows upwards, the sludge sinks, and the flocculent sludge is intercepted, so that better slag blocking and mud blocking effects can be obtained on the premise of not influencing the water outlet efficiency of the water outlet weir.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. An apparatus for removing floating mud from an upflow water treatment structure, comprising:
the water outlet weir, the connecting rods and the two bending scum baffles; wherein,
the water outlet weir is transversely arranged in the water treatment structure, two ends of the water outlet weir are fixedly connected with the side wall of the water treatment structure, and the water outlet weir is positioned at the inner top of the water treatment structure and is positioned at the same plane position with the water surface in the submerged water treatment structure;
the two bending floating slag baffles have the same structure and are bending structure plate bodies formed by upper vertical sections and bottom bending sections;
the two bending scum baffles are respectively arranged at two sides of the effluent weir and are respectively fixedly connected with the effluent weir through a plurality of connecting rods, the bending sections at the bottoms of the two bending scum baffles face the bottom of the effluent weir, and the lowest edge of the bending section of each bending scum baffle is positioned right below the effluent weir and is stopped on a vertically downward extension line of the side wall of the effluent weir;
the height of the two bending scum baffles extending out of the water surface of the water treatment structure is consistent with the height of the water outlet weir extending out of the water surface of the water treatment structure.
2. An upflow water treatment structure as in claim 1, in which the angle between the vertical and the bent sections of the folded scum baffle is obtuse.
3. An upflow water treatment structure as in claim 2, in which the angle of the angle between the curved section and the vertical section of the curved scum baffle is 120 °.
4. A water treatment installation for removing floating sludge from an upflow water treatment structure as in any of claims 1 to 3, wherein the vertical distance d between the side wall of the weir and the vertical section of the corresponding curved scum baffle1The vertical distance d between the bottom edge of the side wall of the effluent weir and the bending section of the corresponding bending scum baffle2Are equal.
5. An effluent plant for removing floating sludge from an upflow water treatment structure as in any one of claims 1 to 3, wherein a top cover is provided on top of said effluent weir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219866.0A CN110860113A (en) | 2019-12-03 | 2019-12-03 | Water outlet equipment for removing floating mud in upflow water treatment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219866.0A CN110860113A (en) | 2019-12-03 | 2019-12-03 | Water outlet equipment for removing floating mud in upflow water treatment structure |
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| Publication Number | Publication Date |
|---|---|
| CN110860113A true CN110860113A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911219866.0A Pending CN110860113A (en) | 2019-12-03 | 2019-12-03 | Water outlet equipment for removing floating mud in upflow water treatment structure |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204134271U (en) * | 2014-09-28 | 2015-02-04 | 苏州市白云环保工程设备有限公司 | A kind of modified form perpendicular stream second pond |
| CN204981313U (en) * | 2015-07-02 | 2016-01-20 | 唐山城市排水有限公司 | Oxidation ditch goes out mill weir door spray set |
| CN205391817U (en) * | 2016-02-25 | 2016-07-27 | 大连涌清水处理技术有限公司 | Weir left -falling stroke liquid ware floats |
| CN109908631A (en) * | 2019-02-15 | 2019-06-21 | 无锡市锡山区污水处理厂 | A kind of elasticity effluent weir |
| CN211912833U (en) * | 2019-12-03 | 2020-11-13 | 北京首创股份有限公司 | Water outlet equipment for removing floating mud in upflow water treatment structure |
-
2019
- 2019-12-03 CN CN201911219866.0A patent/CN110860113A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204134271U (en) * | 2014-09-28 | 2015-02-04 | 苏州市白云环保工程设备有限公司 | A kind of modified form perpendicular stream second pond |
| CN204981313U (en) * | 2015-07-02 | 2016-01-20 | 唐山城市排水有限公司 | Oxidation ditch goes out mill weir door spray set |
| CN205391817U (en) * | 2016-02-25 | 2016-07-27 | 大连涌清水处理技术有限公司 | Weir left -falling stroke liquid ware floats |
| CN109908631A (en) * | 2019-02-15 | 2019-06-21 | 无锡市锡山区污水处理厂 | A kind of elasticity effluent weir |
| CN211912833U (en) * | 2019-12-03 | 2020-11-13 | 北京首创股份有限公司 | Water outlet equipment for removing floating mud in upflow water treatment structure |
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