CN104512976B

CN104512976B - coagulation gravity type fibre filter

Info

Publication number: CN104512976B
Application number: CN201410834376.2A
Authority: CN
Inventors: 曹成
Original assignee: ZIBO MINGCHUANG ENVIRONMENTAL TECHNOLOGY Co Ltd
Current assignee: Shandong Ming Ming Environmental Engineering Co., Ltd.
Priority date: 2014-12-26
Filing date: 2014-12-26
Publication date: 2016-05-18
Anticipated expiration: 2034-12-26
Also published as: CN104512976A

Abstract

This device belongs to sewage-treatment plant field, be particularly related to a kind of coagulation gravity type fibre filter, the dividing plate that bottom communicates is set between coagulating basin and aerobic fermentation tank, agitating device is set in coagulating basin, one side arranges water inlet pipe, water inlet pipe is communicated with chemicals dosing plant, intake antrum is set respectively in filtering ponds, filter chamber, produce water cavity and backwash drain chamber, intake antrum communicates with aerobic fermentation tank, intake antrum top arranges inlet valve, the inner fibre filter of installing of filter chamber, fibre filter top connects fibre bundle control device, fibre filter inner chamber communicates with product water cavity, produce on water cavity sidewall and set out the mouth of a river, fibre filter exterior bottom arranges backwash aerator, backwash aerator is all by backwash air pipeline connecting fan, backwash water discharging valve is set in backwash drain chamber. this device effluent quality is good, and treatment effect is stable, and anti-shock loading is strong, and dosing is few, low without water supply and backwash pump energy consumption.

Description

Coagulation gravity type fibre filter

Technical field

The present invention relates to a kind of coagulation gravity type fibre filter filtering without the direct coagulating of precipitation, belong to dirtyWater treatment facilities field.

Background technology

Existing sewage disposal end remove SS (suspension) and phosphorus mainly by add chemical agent coagulating+precipitation+Filter to realize and remove SS and chemical dephosphorization. Owing to must just entering filter, therefore its existence through precipitation before filteringThe shortcomings such as floor space is large, operating cost is high, investment is high.

Summary of the invention

The technical problem to be solved in the present invention is: provide a kind of efficient, low energy consumption, floor space is little, effluent quality good, locateReason effect stability, without precipitation, is directly crossed filtering SS and phosphorus and can be reduced ring by gravity type fabric filter after dosing coagulationEnvironment pollution, the coagulation gravity type fibre filter maintaining easily.

Coagulation gravity type fibre filter of the present invention, comprises process chamber, and process chamber comprises coagulating basin, aerobic fermentation tankAnd filtering ponds, the dividing plate that communicates of bottom is set between coagulating basin and aerobic fermentation tank, agitating device is set in coagulating basin, a side arrange intoWater pipe, water inlet pipe is communicated with chemicals dosing plant, and intake antrum, filter chamber, product water cavity and backwash drain chamber are set respectively in filtering ponds, water inletChamber communicates with aerobic fermentation tank, and intake antrum top arranges inlet valve, inner fibre filter, the fibre filter installed of filter chamberTop connects fibre bundle control device, and fibre filter inner chamber communicates with producing water cavity, produces on water cavity sidewall and sets out the mouth of a river, fibreDimensional filter device exterior bottom arranges backwash aerator, and backwash aerator is all by backwash air pipeline connecting fan, anti-Wash backwash water discharging valve is set in drain chamber.

Coagulating basin adopts mechanical agitation coagulation mode, and water inlet adds inorganic metal salt medicament, under the effect of agitating deviceMix, enter aerobic fermentation tank. Deliquescent salt in itself and sewage, as after phosphate mixes, forms graininess, non-solubilityMaterial, this process is chemical precipitating process. Also carrying out chemical flocculation reaction, along with the increase of precipitating thing and less simultaneouslyNon-solubility solids build up into larger non-solubility solids, make stable elimination of colloid stability, Negotiation speed gradient or expansionLoose process makes de-steady colloid contact with each other generation floccule body. Enter subsequently by solid-liquid separating part---gravity type fiberFilter is purified the object of dephosphorization. Fibre filter adopts without pump configuration, and filter course is by porous plate surface pressureTight filamentary fibers bundle forms, and can under Action of Gravity Field, filter with the hydraulic pressure that is less than 30cm. Fiber filter belongs to in-depth filtration, mistakeFilter precision can reach several microns, and SS removal efficiency can reach 93.2%, BOD5 removal efficiency can reach 91.2%. System operation is certainAfter time, by automatic backwash, backwash does not need backwash pump, and backwashing water is passed through to rise by the product water that closes on filterGas lift is supplied with, by loosening fibre bundle and spraying into the backwash air that there is strong shearing force and can vibrate fiber, withThe powerful air-flow forming upwards completes the execution that backwash is moved, and not only realizes air bump rinse operation, relies on filametntary play simultaneouslyThe shearing force that strong shake forms and frictional force is each other clean the dirt cleaning down on tow surface, backwash effectGood. Fibre filter filter element can adopt import PP filament, at elasticity, toughness, wearability, chemical stability, resistance to strong acid, strongThe aspects such as alkali, strong oxidizer, resistance to biodegradation have good performance. Intake antrum, filter chamber, product water cavity and backwash drain chamberSetting can effectively utilize space.

Described backwash drain chamber connects circulating water pool and aerobic fermentation tank successively by backwash cycles pipeline, backwash drain chamber withBackwash cycles control valve is set between circulating water pool, between circulating water pool and aerobic fermentation tank, circulating pump is set. Reusable edible recoilWash water, saving resource, improves water outlet efficiency and quality.

Described fibre bundle control device comprises pneumatic actuator, and pneumatic actuator is connected and fixed by connecting rodFolder, geometrical clamp connects the fibre bundle of fibre filter, and inlet valve is connected gas by connecting rod respectively with backwash water discharging valveMoving executing agency, pneumatic actuator is all arranged on filtering ponds top by support, and connects by compressed air line respectivelyAir compressor. Simple and compact for structure, save space, easily realize.

Described chemicals dosing plant comprises dosing pump, and dosing pump connects water inlet pipe by chemical feed pipe. Simple in structure, easily realExisting.

Described filter chamber internal upper part arranges liquid level gauge. Can send signal according to the liquid level in filter chamber, to control anti-The control of flushing process and product water process.

In addition, its arrangement form of coagulation gravity type fibre filter can be realized according to technological requirement and installation location situationMultiple arrangement, is generally usually used in cylindrical or square, regular polygon shape more and carries out entirely above underground, semi-underground or groundFormula is built; Building materials mostly is steel construction or armored concrete, if can reach requirement of strength and corrosion-resistant requirement also canSelect other material to build.

Coagulation gravity type fibre filter effluent quality is good, and treatment effect is stable, and anti-shock loading is strong, dosingFew, low without water supply and backwash pump energy consumption. Its dosing pump, blower fan and air compressor coordinate Automatic Control system,Can realize the fully automatic operation control of water treatment system.

The invention has the beneficial effects as follows:

1) after flocculation, do not need precipitation directly to carry out in-depth filtration by fiber filter, filtering accuracy can reach several microns, can haveEffect is removed phosphorus and the SS in water, and effluent characteristics is good;

2) fillter section does not need raw water pump, utilizes Natural Water potential difference to realize and filters, and the loss of flood peak is very low;

3), when backwash, without backwash pump, backwashing water is promoted by ascending air by the product water that closes on filterSupply with, the energy consumption of processing unit sewage is low;

4) strong shock resistance, climate, the water yield and change of water quality impact are little;

5) part backwash water circulating reflux, has reduced the dosage of medicament and has discharged the water yield, improves the rate of recovery of water;

6) automaticity is high, and operational management is convenient, is convenient to safeguard;

7) can build up enclosed construction, reduce foul smell, the impact of noise on surrounding environment, visual perception is effective;

8) whole modular constructions, are convenient to carry out the reorganization and expansion in later stage;

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

In figure: 1, water inlet pipe 2, agitating device 3, dividing plate 4, coagulating basin 5, aerobic fermentation tank 6, intake antrum 7, circulating pump8, circulating water pool 9, backwash cycles control valve 10, backwash cycles pipeline 11, product water cavity 12, backwash aerator 13, fiberFilter 14, backwash drain chamber 15, geometrical clamp 16, inlet valve 17, backwash water discharging valve 18, connecting rod 19, gasMoving executing agency 20, support 21, delivery port 22, air compressor 23, compressed air line 24, backwash air pipeline25, filter chamber 26, liquid level gauge 27, blower fan 28, switch board 29, dosing pump 30, chemical feed pipe.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described further:

As shown in Figure 1, coagulation gravity type fibre filter of the present invention, comprises process chamber, and process chamber comprises mixedSolidifying pond 4, aerobic fermentation tank 5 and filtering ponds, arrange the dividing plate 3 that bottom communicates between coagulating basin 4 and aerobic fermentation tank 5, the interior setting of coagulating basin 4 is stirredMix device 2, one sides water inlet pipe 1 is set, water inlet pipe 1 is communicated with chemicals dosing plant, in filtering ponds, arrange respectively intake antrum 6, filter chamber 25,Produce water cavity 11 and backwash drain chamber 14, intake antrum 6 communicates with aerobic fermentation tank 5, and intake antrum 6 tops arrange inlet valve 16, filter chamberThe 25 inner fibre filters 13 of installing, fibre filter 13 tops connect fibre bundle control device, fibre filter 13Inner chamber communicates with producing water cavity 11, produces on water cavity 11 sidewalls and sets out the mouth of a river 21, and fibre filter 13 exterior bottom arrange backwashAerator 12, backwash aerator 12, all by backwash air pipeline 24 connecting fans 27, arranges anti-in backwash drain chamber 14Wash water discharging valve 17. Backwash drain chamber 14 connects circulating water pool 8 and aerobic fermentation tank 5 successively by backwash cycles pipeline 10, backwash rowBetween water cavity 14 and circulating water pool 8, backwash cycles control valve 9 is set, between circulating water pool 8 and aerobic fermentation tank 5, circulating pump 7 is set. FineDimension bundle control device comprises pneumatic actuator 19, and pneumatic actuator 19 is by connecting rod 18 connection fixing clamps 15, geometrical clamp15 connect the fibre bundle of fibre filter 13, and inlet valve 16 is connected gas by connecting rod 18 respectively with backwash water discharging valve 17Moving executing agency 19, pneumatic actuator 19 is all arranged on filtering ponds top by support 20, and passes through respectively compressed air hoseRoad 23 connects air compressor 22. Chemicals dosing plant comprises dosing pump 29, and dosing pump 29 connects water inlet pipe 1 by chemical feed pipe 30. CrossFilter chamber 25 internal upper parts arrange liquid level gauge 26.

When work, dosing pump 29, circulating pump 7, backwash cycles control valve 9, liquid level gauge 26 and agitating device 2 all can connect controlCabinet 28 processed, by the setting of the program to switch board 28, realizes the automation control to above-mentioned parts.

Sewage enters coagulating basin 4 through water inlet pipe 1, and dosing pump 29 adds polymerization medicament by chemical feed pipe 30, through agitating device 2After being uniformly mixed, enter aerobic fermentation tank 5. When filtration, inlet valve 16 is opened, and fibre bundle control device makes fibre filter 13Fibre bundle is in tension, and backwash water discharging valve 17 is closed. Aerobic fermentation tank 5 water outlets are introduced into intake antrum 6, by inlet valve 16Enter through filter chamber 25, then after fibre filter 13 depth-type filtrations, enter produce discharge by delivery port 21 after water cavity 11 orReuse. The design of filtration system multimode, after operation a period of time, in the time that resistance increase liquid level rises to setting liquid level, liquid level gauge26 send backwash signal, and backwash signal is to switch board 28, and switch board carries out air-water backwashing and washing in 28 controlled filter ponds, makesObtaining the dirt of holding back fiber filter unit removes in time. When backwash, inlet valve 16 is closed, and fibre bundle control device makes fiberThe fibre bundle of filter 13 is in relaxation state, and backwash water discharging valve 17 is opened. Open blower fan 27, by backwash air pipeline24 and backwash aerator 12 release air in filtering ponds, by fibre filter 13 with spray into and there is strong shearingThe backwash air that can vibrate fiber of power, completes with the powerful air-flow forming upwards the execution that backwash is moved, not onlyRealize air bump rinse operation, rely on shearing force that the violent shake of fibre filter 13 forms and frictional force general each other simultaneouslyThe dirt cleaning down on tow surface is clean, and backwash effect is good. The backwash initial stage backwashing sewage water of high concentration is discharged to backwashThe rear discharge of drain chamber 14. In the backwash later stage, backwash cycles control valve 9 is opened, and the backwashing sewage water of low concentration passes through backwash cyclesPipeline 10 is discharged in circulating water pool 8, then passes through the even pump of circulating pump 7 to aerobic fermentation tank 5, is mixed into filter with former water, realThe minimizing saving of existing reagent consumption and displacement. After backwash process completes, return to filtration condition.

Claims

1. a coagulation gravity type fibre filter, is characterized in that: comprise process chamber, process chamber comprises coagulating basin (4), ripeChange pond (5) and filtering ponds, the dividing plate (3) that bottom communicates is set between coagulating basin (4) and aerobic fermentation tank (5), in coagulating basin (4), arrangeAgitating device (2), a side arranges water inlet pipe (1), and water inlet pipe (1) is communicated with chemicals dosing plant, and intake antrum is set respectively in filtering ponds(6), filter chamber (25), produce water cavity (11) and backwash drain chamber (14), intake antrum (6) communicates with aerobic fermentation tank (5), intake antrum (6)Top arranges inlet valve (16), inner fibre filter (13), fibre filter (13) top of installing of filter chamber (25)Connect fibre bundle control device, fibre filter (13) inner chamber communicates with producing water cavity (11), produces on water cavity (11) sidewall and arrangesDelivery port (21), fibre filter (13) exterior bottom arranges backwash aerator (12), and backwash aerator (12) is all logicalCross backwash air pipeline (24) connecting fan (27), backwash water discharging valve (17) is set in backwash drain chamber (14); Backwash drainingChamber (14) connects circulating water pool (8) and aerobic fermentation tank (5) successively by backwash cycles pipeline (10), backwash drain chamber (14) and circulationBackwash cycles control valve (9) is set between pond (8), circulating pump (7) fiber is set between circulating water pool (8) and aerobic fermentation tank (5)Bundle control device comprises pneumatic actuator (19), and pneumatic actuator (19) passes through connecting rod (18) connection fixing clamp (15),Geometrical clamp (15) connects the fibre bundle of fibre filter (13), and inlet valve (16) and backwash water discharging valve (17) pass through respectivelyConnecting rod (18) connects pneumatic actuator (19), and pneumatic actuator (19) is all arranged on filtering ponds top by support (20)Portion, and connect air compressor (22) by compressed air line (23) respectively.

2. coagulation gravity type fibre filter according to claim 1, is characterized in that: chemicals dosing plant comprises dosing pump(29), dosing pump (29) connects water inlet pipe (1) by chemical feed pipe (30).

3. coagulation gravity type fibre filter according to claim 1 and 2, is characterized in that: in filter chamber (25)Portion arranges liquid level gauge (26).