CN110589923A - Cocurrent flow flotation solid-liquid separation tank - Google Patents
Cocurrent flow flotation solid-liquid separation tank Download PDFInfo
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- CN110589923A CN110589923A CN201910900222.1A CN201910900222A CN110589923A CN 110589923 A CN110589923 A CN 110589923A CN 201910900222 A CN201910900222 A CN 201910900222A CN 110589923 A CN110589923 A CN 110589923A
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- 238000000926 separation method Methods 0.000 title claims abstract description 78
- 238000005188 flotation Methods 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 123
- 239000010802 sludge Substances 0.000 claims abstract description 74
- 238000005192 partition Methods 0.000 claims abstract description 37
- 239000010865 sewage Substances 0.000 claims description 35
- 238000005086 pumping Methods 0.000 claims description 20
- 238000005189 flocculation Methods 0.000 claims description 17
- 230000016615 flocculation Effects 0.000 claims description 17
- 210000004027 cell Anatomy 0.000 claims description 11
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 238000005273 aeration Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 210000005056 cell body Anatomy 0.000 claims description 6
- 230000000712 assembly Effects 0.000 abstract description 8
- 238000000429 assembly Methods 0.000 abstract description 8
- 238000007790 scraping Methods 0.000 description 17
- 238000004140 cleaning Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009300 dissolved air flotation Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a cocurrent flow flotation solid-liquid separation tank, which comprises a tank body, wherein a contact chamber, a separation chamber and a clear water collection chamber which are communicated with each other are sequentially arranged in the tank body along the flow direction of water flow, a cocurrent flow flotation separation assembly is arranged in the separation chamber, the cocurrent flow flotation separation assembly comprises a plurality of inclined plate assemblies, each inclined plate assembly comprises a vertical straight plate, a capturing inclined plate with the top end connected to the bottom end of the straight plate, and a mud sliding inclined plate with the top end connected to the bottom end of the capturing inclined plate, a sludge partition plate is arranged at the bottom of each inclined plate assembly, the sludge partition plate is positioned between the adjacent inclined plate assemblies, the space between the sludge partition plate and the inclined plate assembly at the front side is a clear water conveying cavity, the space between the sludge partition plate and. The cocurrent flow flotation solid-liquid separation tank has good water outlet quality and high treatment efficiency.
Description
Technical Field
The invention relates to sewage treatment equipment, in particular to a cocurrent flow flotation solid-liquid separation tank.
Background
At present, river water treatment has a common characteristic that the minimum treatment amount is tens of thousands of tons every day, and the large treatment amount is millions of tons every day. Maximum processing capacity 2500m capable of being transported by conventional dissolved air floatation single machine in market3Every day, if the treatment capacity of the river water is 20000m38 pieces are needed for a/day calculation. The number of air floaters ordered by the owner is too large, and the investment cost of the owner is increased. And the conventional pressure dissolved air flotation backflow water amount is designed according to 30%, the lift is designed according to 50 meters, and the converted power cannot be tolerated by owners. Treating river water by adopting a conventional air floatation process. The energy consumption is too high, and the investment cost is too high. Bring the above problems into considerationThe main technical reason for (1) is that the conventional pressure dissolved air flotation has low operation efficiency. The design point of the conventional pressure dissolved air floatation hydraulic load is 7-10m3/m2The reflux ratio design point is 30-50%. One of the important factors affecting the efficiency of air floatation sewage treatment is the inclined plate component in the separation chamber. At present, in a common air floatation tank with an inclined plate assembly, the inclined plate assembly is a single inclined plate, and sludge is not isolated from clear water to a certain extent, so that the sludge easily enters a clear water chamber along with water flow, and the quality of the discharged water is reduced.
In view of the above-mentioned defects, the present designer is actively making research and innovation to create a novel structure of cocurrent flow flotation solid-liquid separation tank, so that the tank has more industrial utilization value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the cocurrent flow flotation solid-liquid separation tank which is good in effluent quality and high in treatment efficiency.
The cocurrent flow flotation solid-liquid separation tank comprises a tank body, wherein a contact chamber, a separation chamber and a clear water collection chamber which are mutually communicated are sequentially arranged in the tank body along the flow direction of water flow, a cocurrent flow flotation separation assembly is arranged in the separation chamber and comprises a plurality of inclined plate assemblies, each inclined plate assembly comprises a vertical straight plate, a capture inclined plate with the top end connected to the bottom end of the straight plate, and a sludge sliding inclined plate with the top end connected to the bottom end of the capture inclined plate, a sludge partition plate is arranged at the bottom of each inclined plate assembly and positioned between adjacent inclined plate assemblies, the space between each sludge partition plate and the inclined plate assembly on the front side of the sludge partition plate is a clear water conveying cavity, the space between each sludge partition plate and the inclined plate assembly on the rear side of the sludge partition plate is a sludge conveying cavity, and.
Further, the cocurrent flow flotation solid-liquid separation tank is characterized in that a high-speed flocculation separation reactor is arranged in the contact chamber, the high-speed flocculation separation reactor comprises a plurality of folded plate assemblies, each folded plate assembly comprises a vertical plate which is vertically arranged, and a flocculation catching inclined plate of which the top end is connected to the bottom end of the vertical plate.
Furthermore, the cocurrent flow flotation solid-liquid separation tank also comprises a water distribution assembly, wherein the water distribution assembly comprises a water distribution main pipe positioned at the bottom of the tank and water distribution pipes positioned at two sides of the water distribution main pipe, one end of each water distribution pipe is communicated with the water distribution main pipe, the other end of each water distribution pipe is communicated with the contact chamber, and the cross section of an inner hole of the water distribution main pipe and the cross section of an inner hole of each water distribution pipe are triangular.
Furthermore, in the co-current flotation solid-liquid separation tank, the two sides of the main water distribution pipe are respectively provided with a first partition plate, the bottom end of each first partition plate is fixedly connected with the tank body, two second partition plates, the bottom ends of each second partition plate are connected with the main water distribution pipe, the contact chamber is arranged on the outer side of each first partition plate, the separation chamber is arranged between each first partition plate and the adjacent second partition plate, and the clean water collection chamber is arranged between each two second partition plates.
Further, in the cocurrent flow flotation solid-liquid separation tank, a U-shaped clear water collecting tank is arranged in the clear water chamber.
Furthermore, the bottom of the separation chamber is provided with a mud scraping assembly, the mud scraping assembly comprises a scraper mounting rod, a plurality of wedge-shaped scrapers are arranged on the scraper mounting rod, and the mud scraping assembly further comprises a mounting rod linear driving device for driving the scraper mounting rod to move back and forth.
Furthermore, according to the cocurrent flow flotation solid-liquid separation tank, the end face of the end with the larger size of the wedge-shaped scraper is provided with the negative pressure groove.
Furthermore, the cocurrent flow flotation solid-liquid separation tank also comprises a sludge collection assembly, wherein the sludge collection assembly comprises a sewage pumping pipe connected with the vacuum pump and a plurality of horn-shaped sludge suction ports arranged on the side wall of the sewage pumping pipe and communicated with the sewage pumping pipe, and the sewage pumping pipe is arranged at the bottom of the contact chamber.
Further, the sludge collection assembly of the co-current flotation solid-liquid separation tank further comprises an aeration flushing pipe, and the aeration flushing pipe is communicated with the sewage pumping pipe through a communicating pipe.
Furthermore, the cocurrent flow flotation solid-liquid separation tank also comprises a sludge vacuumizing and discharging assembly, the sludge vacuumizing and discharging assembly comprises a vacuum pump and a storage tank, a vent hole, a sewage inlet and a sewage outlet are formed in the storage tank, the vent hole is communicated with one port of the four-way valve through a pipeline, the other two ports of the four-way valve are respectively communicated with the air inlet and the air outlet of the vacuum pump through pipelines, and the last port of the four-way valve is communicated with the atmosphere.
By the scheme, the invention at least has the following advantages: according to the cocurrent flow flotation solid-liquid separation tank, the inclined plate assembly is arranged, so that efficient separation of the floccule, clear water and sludge is realized. The running load is 30-35m3/m2H is increased to 40-50m3/m2H is used as the reference value. The suspended matter in the effluent is increased to 5 mg/L from 15 mg/L, and the target effluent index is close to that of a sand filter. Wherein, the setting of entrapment swash plate has realized the capture to less wadding body, makes it can be along the back come-up of entrapment swash plate and with other wadding body gathering for the wadding body of great volume and finally along the space come-up to the liquid level between the straight board. The setting of smooth mud swash plate for in the mud bucket of separation chamber bottom can be deposited on the surface of smooth mud swash plate and fall into along the smooth mud swash plate to the mud granule of great volume, during the concrete implementation, the inclination of smooth mud swash plate and horizontal plane is greater than the inclination of entrapment swash plate, thereby more does benefit to the landing of mud. In addition, the arrangement of the sludge partition plate enables the sludge conveying cavity for sludge sliding to be isolated from the clear water conveying cavity for clear water circulation to a certain extent, and further achieves the effects of diversion and isolation of sludge and clear water. During concrete during operation, mud slides along the smooth mud swash plate and falls into the sludge bucket under the action of gravity, because the middle part position that the clear water transfer port that communicates clear water transport chamber and clear water collection room corresponds the mud baffle, consequently the mud granule is difficult for carrying the chamber to enter into clear water through the clear water and collects indoor to separate mud and clear water each other, prevent that mud from entering into the clear water along with rivers and collecting indoor, improved the quality of water of final play.
In conclusion, the co-current flotation solid-liquid separation tank disclosed by the invention has the advantages of good water outlet quality and high treatment efficiency.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a process system diagram of a co-current flotation solid-liquid separation tank;
FIG. 2 is a schematic elevation view of a co-current flotation solid-liquid separation cell;
FIG. 3 is a schematic top view of the cell body;
FIG. 4 is a schematic right view of a co-current flotation solid-liquid separation cell;
FIG. 5 is a schematic structural diagram of components of the tank body and the water distribution main pipe;
FIG. 6 is a schematic view of the structure of a flocculation separation reactor;
FIG. 7 is a schematic right view of a co-current flotation separation module;
FIG. 8 is a schematic elevation view of a co-current flotation separation module;
FIG. 9 is a schematic structural view of a ramp assembly;
FIG. 10 is a schematic elevation view of the mud scraping assembly;
FIG. 11 is a schematic view of the construction of a wedge-shaped squeegee;
FIG. 12 is a schematic view of the structure of the sludge collection assembly;
FIG. 13 is a schematic view of the structure of the soil pick-up pipe;
FIG. 14 is a schematic end view of a sludge collection assembly;
FIG. 15 is a schematic elevational view of a water distribution assembly;
FIG. 16 is a schematic top view of a water distribution assembly;
FIG. 17 is a side schematic view of a sludge collection assembly;
FIG. 18 is a structural block diagram of a sludge evacuation discharge assembly.
In the figure, a tank body 1, a contact chamber 2, a separation chamber 3, a clear water collection chamber 4, an inclined plate assembly 5, a straight plate 6, a collecting inclined plate 7, a mud sliding inclined plate 8, a mud baffle plate 9, a clear water conveying chamber 10, a mud conveying chamber 11, a flocculent body 12, a clear water conveying hole 13, a laminar flow baffle plate 14, a folded plate assembly 15, a vertical plate 16, a flocculation collecting inclined plate 17, an online self-cleaning releaser 18, a hydraulic distribution plate 19, a water distribution main pipe 20, a water distribution branch pipe 21, a first baffle plate 22, a second baffle plate 23, a U-shaped clear water collecting tank 24, a chain plate rotating slag scraping device 25, a scraper mounting rod 26, a wedge-shaped scraper 27, an electric push-pull rod 28, a negative pressure groove 29, a sewage suction pipe 30, a horn-shaped mud suction port 31, an aeration flushing pipe 32, a communicating pipe 33, a vacuum pump 34, a storage tank 35, a blow-off port 36, an inlet 37, a.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 18, a cocurrent flow flotation solid-liquid separation tank, including cell body 1, contact chamber 2 that communicates each other is equipped with in proper order along the flow direction of rivers in the cell body, separation chamber 3 and clear water collection chamber 4, be provided with cocurrent flow flotation separation subassembly 4 in the separation chamber, cocurrent flow flotation separation subassembly includes a plurality of ramp plate subassemblies 5, ramp plate subassembly includes vertical setting's straight board 6, the top is connected in the entrapment swash plate 7 of straight board bottom, the top is connected in the smooth mud swash plate 8 of entrapment swash plate bottom, ramp plate subassembly's bottom is provided with sludge baffle 9, sludge baffle is located between the adjacent ramp plate subassembly, sludge baffle and the space between its front side ramp plate subassembly carry chamber 10 for clear water, sludge baffle and the space between its rear side ramp plate subassembly are mud and carry chamber 11, clear water carries chamber and clear water collection chamber intercommunication.
Due to the arrangement of the inclined plate assembly, efficient separation of the floccule 12, clear water and sludge is realized. Wherein, the setting of entrapment swash plate has realized the capture to less wadding body, makes it can be along the back come-up of entrapment swash plate and with other wadding body gathering for the wadding body of great volume and finally along the space come-up to the liquid level between the straight board. The setting of smooth mud swash plate for in the mud bucket of separation chamber bottom can be deposited on the surface of smooth mud swash plate and fall into along the smooth mud swash plate to the mud granule of great volume, during the concrete implementation, the inclination of smooth mud swash plate and horizontal plane is greater than the inclination of entrapment swash plate, thereby more does benefit to the landing of mud. In addition, the arrangement of the sludge partition plate enables the sludge conveying cavity for sludge sliding to be isolated from the clear water conveying cavity for clear water circulation to a certain extent, and further achieves the effects of diversion and isolation of sludge and clear water. During specific work, mud slides along the smooth mud swash plate and falls into the sludge bucket under the action of gravity, because the middle part position that the clear water delivery hole 13 that communicates clear water delivery chamber and clear water collection room corresponds the sludge baffle, consequently the mud granule is difficult for carrying the chamber through the clear water and enters into in the clear water collection room to separate mud and clear water each other, prevent that mud from entering into the clear water along with rivers and collect indoorly, improved the quality of water of final play water.
Preferably, the included angle between the collecting inclined plate and the horizontal plane is 55-65 degrees, and the included angle between the mud sliding inclined plate and the horizontal plane is more than 60 degrees.
Preferably, the inclined collection plate forms an angle of 60 degrees with the horizontal plane.
The inclination of the trapping clapboard is set to be 60 degrees, which is more beneficial to trapping and floating of the floccule.
Preferably, a laminar flow partition plate 14 is further arranged between the inclined plate assemblies, and two ends of the laminar flow partition plate are respectively connected with the inclined plate assemblies.
The setting of laminar flow baffle makes its connecting piece as the ramp assembly on the one hand, and on the other hand has realized the laminar flow effect to rivers, makes it be difficult for producing the turbulent flow. The sludge baffle plate can be arranged at the bottom end of the laminar flow baffle plate and is basically vertical to the laminar flow baffle plate.
Preferably, a high-speed flocculation separation reactor is arranged in the contact chamber, the high-speed flocculation separation reactor comprises a plurality of folded plate assemblies 15, each folded plate assembly comprises a vertical plate 16 which is vertically arranged, and a flocculation catching inclined plate 17 of which the top end is connected to the bottom end of the vertical plate.
In specific implementation, the high-speed flocculation separation reactor is arranged at the upper half part of the contact chamber, the height from the hydraulic distribution plate is controlled to be about 300 mm, high-pressure gas-dissolved water flowing out of the on-line self-cleaning releaser 18 forms a micro bubble group with the particle size of 1-10um after energy dissipation treatment, and in the contact chamber, "bubble floc" formed by contact reaction of the bubbles, the floc and the high-molecular medicament flows into the high-speed flocculation separation component after flowing through the distance of about 300 mm to buffer and dissipate energy. At the moment, the high-speed flocculation separation reactor cannot impact flocs in the sewage and cannot crash the floc particles formed in the sewage. After flowing into high-speed flocculation separation reactor inner space, the wadding body grows up along catching the wadding swash plate back and gathering, and the rising speed can be faster and faster, and self rising speed adds the promotion of rivers, makes its rising speed improve more than the twice to accomplish the quick separation of wadding body and clear water. When the flocs float to the liquid level, scum is formed, and clear water turns around in the separation chamber and enters the cocurrent flow flotation separation assembly downwards to continuously finish floating and precipitation of a small amount of flocs. The sewage can reach 99.9 percent of suspended matter removal rate after being treated by the high-speed flocculation separation reactor and the cocurrent flow flotation separation component.
Preferably, an online self-cleaning releaser 18 is arranged on the side wall of the tank body, and the output end of the online self-cleaning releaser is communicated with the contact chamber.
The on-line self-cleaning releaser is a micro-bubble releasing device with a self-cleaning function, and is used for releasing micro-bubbles into a contact chamber, so that the aims of combining flocs and medicaments and forming flocs are fulfilled. The specific structure refers to Chinese patent with publication number 209113526U, an on-line self-cleaning releaser.
Preferably, a hydraulic balance plate 19 with a plurality of water distribution holes on the surface is arranged in the contact chamber, and the high-speed flocculation separation reactor is positioned above the hydraulic balance plate at a distance of 250-350 mm.
Preferably, the device also comprises a water distribution assembly, wherein the water distribution assembly comprises a main water distribution pipe 20 positioned at the bottom of the tank and water distribution pipes 21 positioned at two sides of the main water distribution pipe, one end of each water distribution pipe is communicated with the main water distribution pipe, and the other end of each water distribution pipe is communicated with the contact chamber.
Preferably, the cross section of the inner hole of the water distribution main pipe and the cross section of the inner hole of the water distribution pipe are both triangular.
The arrangement of the water distribution main pipe realizes the input of sewage. During specific work, sewage input to the water distribution main pipe enters the contact chamber through the water distribution pipes on the two sides, and therefore the sewage is input. The water distribution main pipe and the water distribution branch pipe are arranged to be triangular pipe bodies with triangular cross sections, so that sinking flocs can slide into the sludge hopper at the bottom along the side wall of the triangular pipe bodies, sludge is effectively prevented from being deposited on the surfaces of the water distribution main pipe and the water distribution branch pipe, meanwhile, the sludge is conveniently subjected to centralized treatment, and preferably, the included angles between the side walls of the water distribution main pipe and the water distribution branch pipe and the horizontal plane are larger than 55 degrees, so that the sludge can slide down conveniently.
Preferably, the two sides of the main water distribution pipe are provided with first partition plates 22, the bottom ends of which are fixedly connected with the tank body, two second partition plates 23, the bottom ends of which are connected with the main water distribution pipe, are arranged above the main water distribution pipe, the outer side of each first partition plate is a contact chamber, a separation chamber is arranged between each first partition plate and the corresponding adjacent second partition plate, and a clean water collection chamber is arranged between each two second partition plates.
Preferably, the hydraulic distribution plate is respectively connected with the tank body and the first partition plate, and the end part of the water distribution pipe penetrates through the first partition plate and extends into the contact chamber.
Preferably, a U-shaped clear water collecting groove 24 is arranged in the clear water chamber.
Preferably, the second clapboard is provided with a clean water conveying hole 13 which is communicated with the clean water conveying cavity and the clean water collecting chamber.
Preferably, the top of the tank body is provided with a chain plate rotating slag scraping device 25.
The chain plate rotating slag scraping device is used for treating scum on a liquid level, and the specific structural principle of the chain plate rotating slag scraping device can refer to a reverse chain plate type slag scraping mechanism in a rectification sedimentation air floatation water treatment device with the publication number of 202054680U.
Preferably, the bottom of the separation chamber is provided with a mud scraping assembly, the mud scraping assembly comprises a scraper mounting rod 26, a plurality of wedge-shaped scrapers 27 are arranged on the scraper mounting rod, and the mud scraping assembly further comprises a mounting rod linear driving device for driving the scraper mounting rod to move back and forth.
The arrangement of the wedge-shaped scraper and the linear driving device of the mounting rod realizes the scraping operation of the sludge. The scraper mounting rod is used for mounting a wedge-shaped scraper, the wedge-shaped scraper is used for scraping sludge at the bottom of the pool, and the mounting rod linear driving device is used for realizing linear displacement driving on the scraper mounting rod, and can be an electric push-pull rod 28, an air cylinder or an oil cylinder and the like, wherein the electric push-pull rod is preferred. When specifically implementing, the great one end of wedge scraper blade size is towards the exit end of mud, concrete during operation, installation pole linear driving device drives scraper blade installation pole and wedge scraper blade and removes to the mud exit end, thereby it removes to the mud exit end to drive mud, scraper blade installation pole and wedge scraper blade are after that to remove to the opposite direction under installation pole drive arrangement's drive, at its reverse removal's in-process, the mud that is located wedge scraper blade wedge top side just removes to the other end of wedge scraper blade along the inclined plane of wedge scraper blade, thereby make the scraper blade can drive this mud when removing to the mud delivery outlet once more and further remove to the exit end, finally make the mud of bottom of the pool scraped out completely. The mud scraping assembly is simple in structure and high in mud scraping efficiency.
Preferably, the end face of the larger dimension end of the wedge-shaped scraper is provided with a negative pressure groove 29.
The arrangement of the negative pressure groove enables sludge on the wedge top side of the wedge-shaped scraper to be rapidly moved to the negative pressure groove along the inclined plane under the negative pressure effect generated by the negative pressure groove when the wedge-shaped scraper moves reversely, and accordingly the efficiency of scraping sludge is improved. Specifically, wedge scraper blade propelling movement mud speed is half of the speed of returning the journey, and the quick return is convenient for form vacuum negative pressure in the negative pressure groove department of wedge scraper blade to with the quick suction of mud to the negative pressure groove end of wedge scraper blade, be convenient for like this the propelling movement to the sludge impoundment. The angle of the wedge-shaped scraper is set between 20 and 30 degrees.
Preferably, the device also comprises a sludge collection assembly, wherein the sludge collection assembly comprises a sewage pumping pipe 30 connected with a vacuum pump, and a plurality of horn-shaped sludge suction ports 31 arranged on the side wall of the sewage pumping pipe and communicated with the sewage pumping pipe, and the sewage pumping pipe is arranged at the bottom of the contact chamber.
Preferably, the sludge collection assembly further comprises an aeration flushing pipe 32, and the aeration flushing pipe is communicated with the sewage suction pipe through a communication pipe 33.
The function of the sludge collection assembly is to ensure that the sludge is discharged quickly and smoothly. Its sewage pumping pipe that adopts length 7 meters, the sewage pumping pipe need guarantee to be greater than the outer drainage pressure more than 4 meters, just so can guarantee that the degree of consistency that sewage pumping pipe arranged mud reaches more than 90%, and the 10 meters negative pressure suction that produce through the vacuum pump provides the energy, can guarantee that the bottom of the pool row mud process is stable orderly. The arrangement of the horn-shaped sludge suction port increases the sludge suction action space of the sewage suction pipe. In addition, the arrangement of the aeration flushing pipe facilitates the flushing of the sewage pumping pipe by operators, thereby preventing the blockage of the sewage pumping pipe.
Preferably, the sludge vacuumizing and discharging device further comprises a sludge vacuumizing and discharging assembly, the sludge vacuumizing and discharging assembly comprises a vacuum pump 34 and a storage tank 35, a vent hole 36, a dirt inlet 37 and a dirt outlet 38 are arranged on the storage tank, the vent hole is communicated with one port of a four-way valve 39 through a pipeline, the other two ports of the four-way valve are respectively communicated with an air inlet and an air outlet of the vacuum pump through pipelines, and the last port of the four-way valve is communicated with the atmosphere.
The sludge vacuumizing outward discharging assembly realizes efficient discharge of scum and sludge, the vacuum pump is utilized to generate 10-meter negative pressure, air inside the storage tank is sucked and exhausted to the atmosphere, scum in the tank body and sludge at the bottom of the tank body are sucked and stored inside the tank body through the negative pressure generated inside the storage tank, after the sludge is fully collected, outlet air of the vacuum pump is pumped into the storage tank body through switching of the four-way valve, and the sludge and the scum are extruded from a sewage outlet into a subsequent sludge treatment device through air pressure.
Preferably, the sludge vacuumizing outward discharging assembly further comprises a transfer tank 40, one inlet of the transfer tank is communicated with the sewage pumping pipe through a pipeline, the other inlet of the transfer tank is communicated with the scum storage chamber on the tank body through a pipeline, and an output port of the transfer tank is communicated with a sewage inlet of the storage tank through a pipeline.
The setting of transfer pond has realized the extraction to dross and mud, and it is closed cell body during the concrete implementation.
Preferably, the vent of the canister is provided with an overflow prevention valve 41.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description.
In addition, the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention. Also, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A cocurrent flow flotation solid-liquid separation pond, its characterized in that: including the cell body, the room is collected to contact chamber, separation chamber and the clear water that follows rivers in the cell body and be equipped with mutual intercommunication in proper order, be provided with cocurrent flow flotation separation subassembly in the separation chamber, cocurrent flow flotation separation subassembly includes a plurality of sloping plate subassemblies, and the sloping plate subassembly includes that straight board, the top of vertical setting connect in the entrapment swash plate of straight board bottom, the smooth mud swash plate that the top is connected in entrapment swash plate bottom, and the bottom of sloping plate subassembly is provided with the sludge baffle, and the sludge baffle is located between the adjacent sloping plate subassembly, and the space between sludge baffle and its front side sloping plate subassembly is clear water transport chamber, and the space between sludge baffle and its rear side sloping plate subassembly is mud transport chamber, clear water transport chamber with clear water collection chamber intercommunication.
2. The co-current flotation solid-liquid separation cell of claim 1, wherein: the indoor high-speed flocculation separation reactor that is provided with of contact, high-speed flocculation separation reactor includes a plurality of folded plate subassemblies, and the folded plate subassembly includes that riser, the top of vertical setting connect in the flocculation catching swash plate of riser bottom.
3. The co-current flotation solid-liquid separation cell of claim 1, wherein: the water distribution assembly comprises a water distribution main pipe positioned at the bottom of the pool, water distribution branch pipes positioned at two sides of the water distribution main pipe, one ends of the water distribution main pipe are communicated with the water distribution main pipe, the other ends of the water distribution branch pipes are communicated with the contact chamber, and the cross sections of the water distribution main pipe inner holes and the cross sections of the water distribution branch pipe inner holes are both triangular.
4. The co-current flotation solid-liquid separation cell of claim 10, wherein: the water distribution device is characterized in that first partition plates are arranged on two sides of the main water distribution pipe, the bottom ends of the first partition plates are fixedly connected with the tank body, two second partition plates are arranged above the main water distribution pipe, the bottom ends of the second partition plates are connected with the main water distribution pipe, the contact chamber is arranged on the outer side of each first partition plate, the separation chamber is arranged between each first partition plate and the corresponding adjacent second partition plate, and the clean water collection chamber is arranged between each two second partition plates.
5. The co-current flotation solid-liquid separation cell of claim 1, wherein: and a U-shaped clear water collecting tank is arranged in the clear water chamber.
6. The co-current flotation solid-liquid separation cell of claim 1, wherein: the bottom of separation chamber is provided with scrapes the mud subassembly, it includes scraper blade installation pole to scrape the mud subassembly, is provided with polylith wedge scraper blade on the scraper blade installation pole, scrapes the mud subassembly and still includes the installation pole linear drive device that is used for driving scraper blade installation pole back-and-forth movement.
7. The co-current flotation solid-liquid separation cell of claim 6, wherein: and a negative pressure groove is formed in the end face of the end with the larger size of the wedge-shaped scraper.
8. The co-current flotation solid-liquid separation cell of claim 1, wherein: still include the mud collection subassembly, the mud collection subassembly includes the sewage pumping pipe of being connected with vacuum pump, locate on the sewage pumping pipe lateral wall set up and with a plurality of loudspeaker form sludge suction mouth of sewage pumping pipe intercommunication, the sewage pumping pipe sets up in the bottom of contact chamber.
9. The co-current flotation solid-liquid separation cell of claim 8, wherein: the sludge collection assembly further comprises an aeration flushing pipe, and the aeration flushing pipe is communicated with the sewage pumping pipe through a communicating pipe.
10. The co-current flotation solid-liquid separation cell of claim 9, wherein: still including the outer subassembly of arranging of mud evacuation, the outer subassembly of arranging of mud evacuation includes vacuum pump and storing jar, sets up blow vent, filth entry and filth export on the storing jar, and the blow vent passes through a port intercommunication of pipeline and cross valve, and the other two ports of cross valve are respectively through the air inlet and the gas outlet intercommunication of pipeline and vacuum pump, and the last port and the atmosphere intercommunication of cross valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910900222.1A CN110589923A (en) | 2019-09-23 | 2019-09-23 | Cocurrent flow flotation solid-liquid separation tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910900222.1A CN110589923A (en) | 2019-09-23 | 2019-09-23 | Cocurrent flow flotation solid-liquid separation tank |
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| CN110589923A true CN110589923A (en) | 2019-12-20 |
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| CN201910900222.1A Pending CN110589923A (en) | 2019-09-23 | 2019-09-23 | Cocurrent flow flotation solid-liquid separation tank |
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