CN101417842A

CN101417842A - Multi-stage self-cleaning water treatment system

Info

Publication number: CN101417842A
Application number: CNA200810234912XA
Authority: CN
Inventors: 卢正华; 李长春
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-11
Filing date: 2008-11-11
Publication date: 2009-04-29

Abstract

The invention discloses a multilevel self-cleaning water treatment system which relates to a device for aggregating and filtering the suspended substances of feed water, reclaimed water recycling, sewage and oily sewage. A tank body is internally and sequentially provided with a sink and float separation section, a curtain filter separation section and a filter material separation section from the front end to the rear end; wherein the sink and float section is internally provided with a plurality of sets of lateral flow slant plates, the upper end of the middle part of the sink and float separation section is connected with an oil residue discharge device, and the lower part is connected with a sludge discharge device; the curtain filter separation section is internally provided with a filter curtain formed by thick fibers; the filter material separation section is provided with at least a set of filter material separation device; the lower end of a filter cavity is connected with a backwash outlet hopper, and the upper end is connected with a backwash feed inlet; and a filter wash cylinder is connected between the backwash outlet hopper and the backwash feed inlet, and the top of the filter wash cylinder is connected with a drain pipe. Using only one type of lifting power, the system can complete aggregation, filtration, self-cleaning backwash, continuous filtration and discontinuous effluence of at least three sections, without stirring force or backwash water lifting power or switch between filtration and backwash, thus saving energy.

Description

A kind of multi-stage self-cleaning water treatment system

Technical field

The suspended substance that the present invention relates to a kind of feedwater, middle water reuse, sewage and oily(waste)water is assembled and filtration unit, belongs to water filtration and environmental protection technical field.

Background technology

The technical equipment of suspended substance gathering separation and filtering separation is to adopt plurality of devices to carry out combined serial in the existing treating water, various device all is confined to the processing accuracy of each section, accuracy requirement is to go up the envelope lower limit, and long flow path, equipment is many, pipeline is complicated, control is complicated, utility appliance is many, maintenance is big, occupation of land is many, power consumption is big, running cost is high.General water technology: come water successively through gravity separation, flotation separation, coarse filtration separation, smart filtering separation, last water outlet.

Divide three kinds of gravity separation, flotation separation and filtering separation on the slave unit principle.

Gravity separation: utilize sedimentation basin or oil trap, the residence time is long, need to be equipped with mud and slag scraping machine, has kinetic energy, floor space big.

Flotation separation: utilize air compressor machine to cooperate recycle pump, fuse by dissolving water, atmospheric pressure, be discharged in the water body again, the suspended substance supporting water surface with in the water in suspension strikes off by slag scraper again.The liquid level control of air supporting flotation, dissolved air water system are joined, the control difficulty is complicated unstable, air compressor machine, recycle pump, slag scraper, power consumption is big, noise is big, maintenance capacity is big, continuously operation troubles is many, the sewage obnoxious flavour polluted air that discharges, and manufacturing cost height, floor space big, northern cold season of winter operation inconvenience.

Filtering separation: utilize mechanical stirring backwash strainer,,, need cascade filtration, one-level, secondary even three-stage filtration because of the limitation of filter process accuracy rating according to the water outlet accuracy requirement.Valve switches frequently when in-line filter intercommunication pipeline complexity, backwash, actuating mechanism controls bothers, the filtrate backwash need stop to filter, initial filter water matter is poor after the backwash, the mechanical stirring transmission brings difficult sealing easily to guarantee, run, drip, leak happen occasionally, mechanical fault is many, consumable accessory change frequent, management difficulty is big, power of agitator is big, big energy-consuming, many multistage combinations filtrations, it is standby to add backwash, and the table of equipment number is many, cost of investment is big, floor space is many.

Summary of the invention

The object of the invention provide a kind of technology one, flow process one, wide advance essence go out, control convenient, management is simple, save kinetic energy, save the multi-stage self-cleaning water treatment system that takes up an area of, reduces investment outlay.

The present invention includes the tank body of a sealed horizontal, the tank body front-end and back-end are provided with water-in and water outlet respectively, arrange sink-float segregation section, curtain filter segregation section and filtrate formula segregation section in the tank body from front to back successively; In described sink-float segregation section, arrange many group lateral flow inclined plates, connect oil extraction slag device, connect mud discharging device in the lower end at sink-float segregation section middle part in the upper end at sink-float segregation section middle part; In curtain filter segregation section, arrange dense fibrous filtration heavy curtain; Arrange at least one group of filtrate formula tripping device at filtrate formula segregation section, described filtrate formula tripping device comprises filter material chamber, one group of louvered blocking material plate, one group of sieve nest assembly and filtrate are washed tube by rubbing with the hands, described louvered blocking material plate and sieve nest assembly be arranged in filter material chamber before, back both sides, lower end in described filter material chamber connects the backwash discharge bucket, upper end in described filter material chamber connects the backwash opening for feed, between backwash discharge bucket and backwash opening for feed, connect filtrate and wash tube by rubbing with the hands, described backwash discharge bucket and filtrate are washed by rubbing with the hands between the tube and are connected with by-pass valve control by the backwash discharge nozzle, one end of described backwash discharge nozzle is connected footpath that filtrate washes tube by rubbing with the hands upwards, filtrate is washed by rubbing with the hands between tube and the backwash opening for feed and is connected check valve, washes a top by rubbing with the hands at filtrate and connects blow-off pipe.

The present invention carries out three stage processing in a tank body:

Leading portion is sink-float segregation section, adopt maturation process technology lateral flow ripple swash plate, heavy, floating roughing out is tentatively assembled in water inlet, when water inlet is slowly passed through the ripple tilted plate section, the suspended substance of water float and oil, rise to its upper side along swash plate, regularly open the Valved discharge greasy dirt by top oil extraction slag device.Settled mud slides into device bottom under swash plate, regularly open Valved discharge mud by the bottom mud discharging device.

The stage casing is a curtain filter segregation section, adopts the heavy curtain gathering to filter, and when sewage passed through to filter heavy curtain, suspended substance was once more by fiber yarn interception, gathering, absorption in the sewage.

Back segment is a filtrate formula segregation section, is made up of to multistage filtrate formula tripping device one-level, adopts the granule filter material filtration, during normal filtration, closes backwash discharge bucket and filtrate and washes by-pass valve control between the tube by rubbing with the hands.After sewage was handled by preceding two sections gatherings, sewage entered filtering chambers at different levels successively, can be carried out by slightly filtering to smart staged the water purification after being handled by the water outlet discharge of tank body rear end at last by different size, granule filter material dissimilar, difference in functionality.Because filtrate is washed by rubbing with the hands between tube and the backwash opening for feed and is connected with check valve, can prevent effectively that sewage from entering filtrate and washing tube by rubbing with the hands.

Because each grade filtrate formula tripping device is made up of louvered blocking material plate and sieve nest assembly, filtrates at different levels are piled up under the ballast at filtrate, the mutual self-closing slit of fitting between the louvered blocking material plate, reach the material leak-proof purpose, when sewage enters filter material chamber, under certain hydraulic pressure, push louvered blocking material plate automatically open, enter filtering chamber by the gap between the blocking material plate and reach into that the water dirt does not stop up purpose, each water outlet rear portion, chamber is equipped with porous plate and the anti-material net that runs.Enter next stage filtrate formula tripping device by the filtrate behind the media filtrations at different levels from the sieve nest assembly, finally discharge by posticum.

Each filtering chamber top of filtrate formula segregation section of the present invention is provided with filtrate and washes tube by rubbing with the hands, opens to be connected backwash discharge bucket and filtrate and to wash by-pass valve control between the tube by rubbing with the hands, and under the positive pressure of sewage, the filtrate of filter material chamber bottom is thus lifted to be washed tube by rubbing with the hands and wash by rubbing with the hands.Be arranged in filtrate and wash the footpath of tube by rubbing with the hands and make progress owing to wash the backwash discharge nozzle that is connected of tube by rubbing with the hands with filtrate, promptly turning round and round after filtrate enters, the present invention can not have additionaling power ground and automatically the filtrate of soil pick-up is washed by rubbing with the hands.When closing control valve, current stop to flow, and stop to promote filtrate, and filtrate turns round and round because of stopping to sink, and the sinking filtrate enters filter material chamber because of deadweight by check valve, and the blow-off pipe that the sewage under cleaning is washed a top by rubbing with the hands by filtrate is discharged.The present invention can clean the filtrate that pollutes by turns.

Flow process one of the present invention: by a kind of lifting power, finish at least three sections gathering, filtration, certainly clear backwash, continuous filtration, uninterrupted water outlet, need not stir power, do not need backwash water to promote power, save energy is not switched in filtration and backwash.The present invention is wide to advance essence and goes out: can handle the water inlet suspended substance at 100mg/L-300mg/L, and the water quality in the oil-containing 100mg/L-300mg/L scope, separation efficiency can reach more than 98%.

In order to save maintenance time, the present invention also is provided with at curtain filter segregation section and filters the heavy curtain washing unit.

Described filtration heavy curtain washing unit comprises the tubular shaft at lateral arrangement place, axle center in tank body, and an end of described tubular shaft is a blind end, and the other end is an open end, and described open end connects the blow-off pipe that is communicated with the tank body outside; On described tubular shaft, connect some vertical open tubes, on each vertical open tube, offer through hole, at each through hole inside clearance formula plant broach; The blind end of tubular shaft connects the tubular shaft rotating mechanism.

Behind the absorption certain hour, open the tubular shaft rotating mechanism, the broach that each vertical open tube drives on it carries out combing to filtering heavy curtain, because the effect of sewage positive pressure and above-mentioned each through hole, open tube, the gap of greasy dirt under the combing between broach and vertical open tube enters vertical open tube, through the open end of tubular shaft, discharge then, reach and filter the purpose that heavy curtain cleans automatically by blow-off pipe.

Produce for convenience, safeguard that also be beneficial to the filtrate that prevents filtrate formula tripping devices at different levels and leak, sieve nest assembly of the present invention is made up of porous plate and screen cloth, porous plate is fixedly connected in the tank body, and screen cloth covers the one side in porous plate.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention.

Fig. 2 bows to view for Fig. 1's.

Fig. 3 is that the A-A of Fig. 1 is to sectional drawing.

Fig. 4 is the C-C sectional drawing of Fig. 1.

Embodiment

As shown in Figure 1, 2, the present invention includes the tank body 1 of a sealed horizontal, tank body 1 front end is provided with water-in 2, and the rear end sets out the mouth of a river 17, arranges sink-float segregation section I, curtain filter segregation section II and filtrate formula segregation section III in the tank body 1 from front to back successively.

As shown in Figure 3, in sink-float segregation section I, arrange many group lateral flow inclined plates 3, connect oil extraction slag device 4, connect mud discharging device 5 in the lower end at sink-float segregation section I middle part in the upper end at sink-float segregation section I middle part.

As shown in Figure 1, many groups that arrange dense modified fibre composition in curtain filter segregation section II are filtered heavy curtains 7 and filter the heavy curtain washing unit.

Filter the tubular shaft 19 that the heavy curtain washing unit comprises lateral arrangement place, axle center in tank body 1, an end of tubular shaft 19 is a blind end, and the other end is an open end, and open end connects the blow-off pipe 8 that is communicated with tank body 1 outside.On tubular shaft 19, connect some vertical open tubes 21, on each vertical open tube 21, offer densely covered through hole, at each through hole inside clearance formula plant broach 22.The blind end of tubular shaft 21 connects tubular shaft rotating mechanism---rotary electric machine 23 by two pairs of conical gear 6.

Shown in Fig. 1,2,4, arrange three groups of filtrate formula tripping devices at filtrate formula segregation section III, each filtrate formula tripping device since filter material chamber 10 and one group of louvered blocking material plate 9, one group of sieve nest assembly 15 form.Sieve nest assembly 15 is made up of porous plate and screen cloth, and porous plate is fixedly connected in the tank body 1, and screen cloth covers the one side in porous plate.

Louvered blocking material plate 9 and sieve nest assembly 15 are arranged in the forward and backward both sides of filter material chamber 10, lower end in filter material chamber 10 connects backwash discharge bucket 14, the upper end connects backwash opening for feed 20, connect the filtrate that is arranged in tank body 1 upper top in backwash discharge bucket 14 lower ends by backwash discharge nozzle 13 and wash tube 11 by rubbing with the hands, and on backwash discharge nozzle 13, be connected in series a by-pass valve control 16.And make backwash discharge nozzle 13 be connected filtrate to wash tube 11 footpath by rubbing with the hands upwards.Filtrate is washed tube 11 lower ends by rubbing with the hands and is connected on the backwash opening for feed 20 by check valve 18, and the top of washing tube 11 at filtrate by rubbing with the hands connects blow-off pipe 12.

In order to be cheaper than observation, to safeguard, manhole and vision slit are set in many places also on the equipment.

Claims

1, a kind of multi-stage self-cleaning water treatment system is characterized in that comprising the tank body of a sealed horizontal, and the tank body front-end and back-end are provided with water-in and water outlet respectively, arranges sink-float segregation section, curtain filter segregation section and filtrate formula segregation section in the tank body from front to back successively; In described sink-float segregation section, arrange many group lateral flow inclined plates, connect oil extraction slag device, connect mud discharging device in the lower end at sink-float segregation section middle part in the upper end at sink-float segregation section middle part; In curtain filter segregation section, arrange dense fibrous filtration heavy curtain; Arrange at least one group of filtrate formula tripping device at filtrate formula segregation section, described filtrate formula tripping device comprises filter material chamber, one group of louvered blocking material plate, one group of sieve nest assembly and filtrate are washed tube by rubbing with the hands, described louvered blocking material plate and sieve nest assembly be arranged in filter material chamber before, back both sides, lower end in described filter material chamber connects the backwash discharge bucket, upper end in described filter material chamber connects the backwash opening for feed, between backwash discharge bucket and backwash opening for feed, connect filtrate and wash tube by rubbing with the hands, described backwash discharge bucket and filtrate are washed by rubbing with the hands between the tube and are connected with by-pass valve control by the backwash discharge nozzle, one end of described backwash discharge nozzle is connected footpath that filtrate washes tube by rubbing with the hands upwards, filtrate is washed by rubbing with the hands between tube and the backwash opening for feed and is connected check valve, washes a top by rubbing with the hands at filtrate and connects blow-off pipe.

2,, it is characterized in that filtration heavy curtain washing unit being set at curtain filter segregation section according to the described multi-stage self-cleaning water treatment system of claim 1.

3, according to the described multi-stage self-cleaning water treatment system of claim 1, it is characterized in that described filtration heavy curtain washing unit comprises the tubular shaft at lateral arrangement place, axle center in tank body, one end of described tubular shaft is a blind end, the other end is an open end, and described open end connects the blow-off pipe that is communicated with the tank body outside; On described tubular shaft, connect some vertical open tubes, on each vertical open tube, offer through hole, at each through hole inside clearance formula plant broach; The blind end of tubular shaft connects the tubular shaft rotating mechanism.

4, according to the described multi-stage self-cleaning water treatment system of claim 1, it is characterized in that described sieve nest assembly is made up of porous plate and screen cloth, porous plate is fixedly connected in the tank body, and screen cloth covers the one side in porous plate.