CN102452689A - Rotary filtering pond for sewage treatment - Google Patents

Rotary filtering pond for sewage treatment Download PDF

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Publication number
CN102452689A
CN102452689A CN2010105306087A CN201010530608A CN102452689A CN 102452689 A CN102452689 A CN 102452689A CN 2010105306087 A CN2010105306087 A CN 2010105306087A CN 201010530608 A CN201010530608 A CN 201010530608A CN 102452689 A CN102452689 A CN 102452689A
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CN
China
Prior art keywords
water
filter
filter cloth
turnplate
sewage
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Pending
Application number
CN2010105306087A
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Chinese (zh)
Inventor
李华
胡登燕
郑传勇
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Sichuan Stong Omex Environmental Engineering Co Ltd
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Sichuan Stong Omex Environmental Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Sichuan Stong Omex Environmental Engineering Co Ltd filed Critical Sichuan Stong Omex Environmental Engineering Co Ltd
Priority to CN2010105306087A priority Critical patent/CN102452689A/en
Publication of CN102452689A publication Critical patent/CN102452689A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a rotary filtering pond for sewage treatment, which is applied in sewage depth filtration treatment, belonging to the technical field of sewage treatment, wherein the main body comprises: a water inflow distribution well, a water inflow distribution dam, a turnplate support, a turnplate and a filter cloth thereof, a central rotary drum, a speed reducer and a transmission device thereof, a back-washing water pump, a back-washing sprayer, a pulse pressure regulating device, a sludge suction pump, a water level regulating checkgate, a clean-water reservoir, a sludge bucket, a turnplate suction pump and so on. The pond employs the outer inflow type and is provided with the distribution dam for water inflow, and is also provided with the sludge suction device and the washing device for the filter cloth. The inflow water enters the filter pond from the water distribution dam on the two ends by rectifying the water flow through the water distribution well. Because of the differences between the inner and outer pressures of the turnplate, water passes through the micrometre-scale filter cloth while suspended matters are held back in the filtering pond and precipitated in the sludge bucket on the lower part, and sucked out of the filtering pond by the sludge suction pump, wherein the permeated water enters the clean-water reservoir through the hollow central rotary drum to finish the filtering on the sewage. The suspended matters held back on the surface of the filter cloth of the turnplate are washed away by a high pressure sprayer and a suction device.

Description

WWT rotating disc type filtering basin
Technical field
The present invention relates to a kind of WWT rotating disc type filtering basin, be applied to sewage water depth-type filtration and handle, belong to technical field of sewage.
Background technology
In the advanced treatment of wastewater field, mainly adopt tank body filtering under pressure and filler not to have ballast power to sewage water filtration and filter at present, its filtrate major part is horizontal distribution; Its main drawback: suspended substance is deposited in the surface of filtrate very soon in the water, thereby makes open area reduce the choked flow aquaporin; Must shut down and carry out back flushing, need to build large-scale air blast machine room, and the back flushing pump house; And for some time will be changed filtrate, and operation energy consumption is high, and manipulation strength is big; Floor space is very big, and civil engineering costs is high, and unit ton water cost filters high than rotating disc type.
In recent years, in the advanced treatment of wastewater field, the application of rotating disc type filtration unit more and more widely, advantage such as it is good to have a treatment effect, and water quality and quantity is stable, and running maintenance is simple and convenient.The key distinction is had nothing in common with each other on water intake mode and backwash mode.Interior water intake mode: it is inner that sewage flows into filter disc through pipe core, and action of gravity sees through filtration medium down and flows into the filter tank, is discharged by the filter tank effluent weir again.The main drawback of interior water intake mode is: it is inner to get into filter disc if any the bulk dirt with water in the sewage, and the utmost point is easy to clean not, and can cause plugged filtration media, reduces effective filtration area.The backwash in interior water inlet filter tank can only be through certainly outer inside high-pressure spray wash.The work liquid level of interior water inlet rotating disk is positioned at the dirt of rotating disk and is accepted the bucket limitation in height; Effective filtration area (being inundated area) can only reach about half of the total area, makes that design dish number is more than the required dish number of outer water inlet form under the equal flow; Take up an area of greatlyyer, invest more.Therefore on filtering water intake mode and backwash mode, make rotating disc type filtration unit treatment effect better, running maintenance is more convenient, has become this area technical problem anxious to be solved.
Summary of the invention
The present invention relates to a kind of WWT rotating disc type filtering basin, it is characterized in that main body comprises: support behind support before pond body, water inlet distributing well, water-in, water outlet, riser, the rotating disk, rotating disk and filter cloth, center rotary drum, the rotating disk, step-down gear and transmission mechanism, backwash shower nozzle, backwash water pump, pulsating pressure setting device, mud suction pump, motorized valve, suction pipe, regulation of level weir gate, clean water basin, blowoff basin, water inlet cloth mill weir, sludge bucket, rotating disk suction unit etc.The present invention relates to WWT rotating disc type filtering basin, adopts outer water intake mode, and water inlet has the cloth mill weir, is furnished with mud-sucking device and filter cloth is carried out flushing arrangement.
The present invention relates to WWT rotating disc type filtering basin; The outer water intake mode of described employing; With the difference of interior water intake mode, be that the suspended substance of holding back is easy to nature on the surface of rotating disk filter cloth and comes off to the difference of the way of output of the suspended substance held back; Be deposited in the sludge bucket of bottom, aspirate by sludge pump.And rotating disk can be submerged in the filter tank fully, and the usable floor area of filter cloth is fully used.
Described rotating disc type filtering basin water inlet has distributing well, and current are carried out rectification, also can carry out water distribution to the rotating disc type filtering basin of many groups form.Be provided with the cloth mill weir in water inlet, make current evenly enter into filtering basin, reduce filtering influence.Cloth mill weir side is provided with perforation, makes level surely enter into the filter tank.
WWT rotating disc type filtering basin of the present invention adopt high-pressure nozzle to clean filter cloth, and the backwash water pump draws water in clean water basin, and is provided with filter screen in the backwash water pump inlet; The high pressure backwash water is carried out pressure and regulating through the person in charge; Enter into take-off pipe then, clean the surperficial suspended substance of filter cloth, the water spraying direction of shower nozzle identical with the sense of rotation of rotating disk (as shown in Figure 4) through shower nozzle; Rotating disk after the cleaning enters into the filtration state, accomplishes the cleaning to filter cloth.
In when operation, water inlet is carried out rectification through distributing well to current, enters into the filter tank from the cloth mill weir at two ends.Because the pressure difference that rotating disk is inside and outside makes water pass through micron-sized filter cloth, suspended substance is trapped within the filter tank; Be deposited in the sludge bucket of bottom; Aspirate out the filter tank by sludge pump, the water that sees through enters into clean water basin through the center rotary drum of hollow, accomplishes the filtration to sewage.Be trapped in the suspended substance on rotating disk filter cloth surface, clean through high-pressure nozzle.
The present invention relates to WWT rotating disc type filtering basin, and its advantage is:
(1) adopts unique water intake mode and cleaning way, make the rotating disc type filtering basin arrive superior performance.
(2) effluent quality is good and stable, anti impulsion load.The filter cloth rotary disc filter is to adopt filter disc outsourcing filter cloth, and the filter cloth aperture is very little, and can hold back particle diameter is the molecule of several microns (μ m), replaces the sand filtering material in traditional filter tank, so effluent quality and stable water outlet property all are superior to the pellet filter tank.And relatively poor before the flushing of conventional filter tank because of penetration problem water quality, can be influential to water outlet after the flushing because of rinse water remaining in the filtering layer.The filter cloth rotary disc filter is the equal of the combination of filter tank and settling tank, has the function of spoil disposal.The mud that particle is big directly is deposited at the bottom of the bucket shape pond, can not stop up filter cloth, and promptly unlike general filter chamber, all suspended substances (SS) all must be through filter material.Therefore filtration cycle long, Clean after every is long, and the hydraulic load that can bear and sludge loading also be far longer than conventional sand filter, suspended substance (SS) is loaded and is equivalent to 1.5 times of the normal sands filter tank, 1.5 times of filtering velocity ratio general filter chamber increases.Therefore the impact of more anti-high suspended matter concentration of filter cloth rotary disc filter and macrobead suspended substance.
(3) simple and compact device, auxiliary facility is few, and the investment of whole filtering system is low.But continuous filtration when the filter cloth rotary disc filter cleans.And can not continuous filtration during the sand filter back flushing, for guaranteeing continuously, tank or adopt Duo Tai filter tank alternation in the middle of need before sand filter, establishing.The rotating disk filtering basin adopt small pump suction filter back water to clean filter cloth automatically, save back flushing pond that many traditional filter tanks need, water tower etc.The tradition filter tank is big because of back washing strength, and air water back washing not only needs high powered water pump, gas blower, also has the larger-diameter system of pipe and valve of air water two covers, and whole system is many and mix, the investment height, and automatic control system is bulky complex very.
(4) lness ratio of plant is low, and total installed capacity power is low.Because filter cloth is thinner, be very easy to rinse well, clean very efficiently, during cleaning, the area of cleaning filter disc only is equivalent to 1% of whole filter disc area, and the overall cleaning water yield is also less.And the equipment of the air-water backwashing water pump in traditional filter tank and gas blower is many, automatic valve is big and many, power is big, and vacancy rate height.
(5) operation robotization, thereby move and safeguard simple, convenient.Filtration procedure can be adjusted the pitch time and the process of cleaning process and spoil disposal process and lasted by computer control.Basically do not need special messenger's maintenance management.The maintenance amount of filter cloth rotary disc filter is little.Filter cloth rotary disc filter mechanical means is less, pump and motor intermittent operation, and the filter cloth wearing and tearing are less, and filter cloth is easy to change.For sand filter,, then need very big cleaning amount if filtrate stops up.And very difficulty of filtrate is changed in sand filtration.
(6) head loss is little more a lot of than sand filter.The filter cloth rotary disc filter is generally 0.3m, and that the head loss of sand filter is generally 2m is many.The head loss of sandfiltration pot then is higher than 5m, and power loss is big, increases working cost.
(7) floor space is little more a lot of than other filter tanks.Because the design of filter disc vertical centering control blank pipe makes little floor space can guarantee big filtration area, thereby reduced the pond appearance, has reduced quantity of material and earth volume, has significantly reduced construction costs, endurance requirement in base is low over the ground, the less investment of equipment ground.
(8) the filter cloth rotary disc filter is easy to install than pellet filter tank.After on-the-spot pipe connecting accessory and the electricinstallation, can come into operation.The pellet filter tank then often need be carried out filtrate and installed.
(9) design cycle and short construction period.Filter cloth rotary disc filter integral deviceization can whole be loaded and transported, and design and easy construction are also quick; And enlarging easily.
Description of drawings
Fig. 1 is a WWT rotating disc type filtering basin structural representation of the present invention
Fig. 2 is a WWT rotating disc type filtering basin diagrammatic cross-section of the present invention
Fig. 3 is a WWT rotating disc type filtering basin vertical view of the present invention
Fig. 4 is the filter cloth washing synoptic diagram
More than among the figure: 1-pond body 2-water inlet distributing well 3-water-in
Support before the 4-water outlet 5-riser 6-rotating disk
7-rotating disk and filter cloth 8-center rotary drum 9-rotating disk suction unit
Support 11-step-down gear and transmission mechanism 12-backwash shower nozzle behind the 10-rotating disk
The suction pump of 13-backwash water pump 14-pulsating pressure setting device 15-mud
16-motorized valve 17-suction pipe 18-regulation of level weir gate
19-clean water basin 20-blowoff basin 21-water inlet cloth mill weir
The suction pump of 22-sludge bucket 23-rotating disk
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.The present invention relates to a kind of WWT rotating disc type filtering basin, it is characterized in that main body comprises: support (10), step-down gear and transmission mechanism (11), backwash shower nozzle (12), backwash water pump (13), pulsating pressure setting device (14), mud suction pump (15), motorized valve (16), suction pipe (17), regulation of level weir gate (18), clean water basin (19), blowoff basin (20), water inlet cloth mill weir (21), sludge bucket (22), rotating disk suction pump (23) etc. after supporting (6), rotating disk and filter cloth (7), center rotary drum (8), rotating disk suction unit (9), rotating disk before pond body (1), water inlet distributing well (2), water-in (3), water outlet (4), riser (5), the rotating disk.
Described rotating disc type filtering basin water inlet has distributing well (2), and current are carried out rectification, also can carry out water distribution (as shown in Figure 3) to the rotating disc type filtering basin of many groups form.Be provided with cloth mill weir (21) in water inlet, make current evenly enter into filtering basin, reduce filtering influence.
The present invention relates to WWT rotating disc type filtering basin and adopts high-pressure nozzle (12) to clean filter cloth; Backwash water pump (13) draws water in clean water basin (19), and is provided with filter screen in backwash water pump (13) import, and the high pressure backwash water is carried out pressure and regulating pulsating pressure setting device (14) through the person in charge; Enter into take-off pipe then; Clean the surperficial suspended substance of filter cloth through shower nozzle, the water spraying direction of shower nozzle identical with the sense of rotation of rotating disk (as shown in Figure 4) is opened rotating disk suction pump (23) the surperficial suspended substance of filter cloth is aspirated; Rotating disk after the cleaning enters into the filtration state, accomplishes the cleaning to filter cloth.
In when operation, water inlet is carried out rectification through distributing well (2) to current, enters into the filter tank from the cloth mill weir (21) at two ends.Because the pressure difference that rotating disk is inside and outside makes water pass through micron-sized filter cloth, suspended substance is trapped within the filter tank; Be deposited in the sludge bucket of bottom; Aspirate out the filter tank by sludge pump (15), the water that sees through enters into clean water basin through the center rotary drum of hollow, accomplishes the filtration to sewage.Be trapped in the suspended substance on rotating disk filter cloth surface, clean through high-pressure nozzle (12).
Specific examples is like (as shown in Figure 1), and day output is 10,000 ton per days, adopts 8 rotating disks, and disk diameter is 2.0m, and the filter cloth filter opening is 10 microns, and the suspended substance of treatment process mesophytization post precipitation sewage is reduced to below the 10mg/L.Other cleans the water yield is 25m 3/ h, cleaning pressure position 0.7Mpa.
The present invention relates to WWT rotating disc type filtering basin; Be specially adapted to building the upgrading of sewage work; Can make water outlet reach one-level A standard from " urban wastewater treatment firm pollutant emission standard (GB18918-2002) " one-level B standard, promptly suspended substance is reduced to 10mg/L from 20mg/L.

Claims (3)

1. the present invention relates to a kind of WWT rotating disc type filtering basin, be applied to sewage water depth-type filtration and handle, belong to technical field of sewage.It is characterized in that main body comprises: water inlet distributing well (2), water inlet cloth mill weir (20), carousel supports (6), rotating disk and filter cloth (7), center rotary drum (8), step-down gear and transmission mechanism (11), backwash water pump (13), backwash high-pressure nozzle (12), pulsating pressure setting device (14), mud suction pump (15), regulation of level weir gate (18), clean water basin (19), sludge bucket (22), rotating disk suction pump compositions such as (23).
2. WWT rotating disc type filtering basin according to claim 1 is characterized in that described have distributing well (2) and water inlet cloth mill weir (21), enter into the filter tank from the cloth mill weir at two ends, and cloth mill weir side is provided with perforation.
3. WWT rotating disc type filtering basin according to claim 1 is characterized in that the described high pressure cleaning shower nozzle (12) that has, and the water spraying direction of shower nozzle is identical with the sense of rotation of rotating disk.
CN2010105306087A 2010-11-03 2010-11-03 Rotary filtering pond for sewage treatment Pending CN102452689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105306087A CN102452689A (en) 2010-11-03 2010-11-03 Rotary filtering pond for sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105306087A CN102452689A (en) 2010-11-03 2010-11-03 Rotary filtering pond for sewage treatment

Publications (1)

Publication Number Publication Date
CN102452689A true CN102452689A (en) 2012-05-16

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ID=46036433

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105306087A Pending CN102452689A (en) 2010-11-03 2010-11-03 Rotary filtering pond for sewage treatment

Country Status (1)

Country Link
CN (1) CN102452689A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107999439A (en) * 2016-11-02 2018-05-08 天津天控科技有限公司 A kind of cleaning equipment in sewage disposal
CN110563227A (en) * 2019-09-30 2019-12-13 杭州太赫环保科技有限公司 Wastewater zero-discharge treatment device
CN111790203A (en) * 2020-07-22 2020-10-20 郭萌萌 Based on carousel filter for sewage treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107999439A (en) * 2016-11-02 2018-05-08 天津天控科技有限公司 A kind of cleaning equipment in sewage disposal
CN110563227A (en) * 2019-09-30 2019-12-13 杭州太赫环保科技有限公司 Wastewater zero-discharge treatment device
CN111790203A (en) * 2020-07-22 2020-10-20 郭萌萌 Based on carousel filter for sewage treatment

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Addressee: Sichuan Stong OMEX Environmental Engineering Co., Ltd.

Document name: Notification of Publication and of Entering the Substantive Examination Stage of the Application for Invention

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120516