Half immersion fiber rotary disc filter jet douche device
Technical field
The utility model relates to field of sewage treatment, particularly the jet douche device of half immersion fiber rotary disc filter.
Background technology
Fiber rotary disc filter is that more sewage water depth-type filtration device is applied in advanced treatment of wastewater and Treated sewage reusing field, belongs to Millipore filtration techniques category.Fiber rotary disc filter is made up of central tube and the filter disc be distributed on central tube, and can reach 80mg/L for advanced treatment of wastewater field water inlet suspension (SS), water outlet SS can be low to moderate 5mg/L.The course of work of fiber rotary disc filter is as follows: before filter, water enters in filter, and under water-head effect, ecto-entad completes filtration by the filter cloth on each filter disc, and after filter, water is flowed out by the central tube of fibre turntable, and foreign material are trapped in the filter cloth surface of filter disc.
According to the degree of depth in fibre turntable immersion water, fiber rotary disc filter is divided into full immersion and half immersion.Full immersion is that filter disc is all immersed in the sewage of filtration, and half immersion is that the half of filter disc is immersed in the sewage of filtration.Go out in entering outside being divided into according to the flow direction of filter sewage and enter to go out two kinds with interior.Sewage first flow in filter tank by filter clear water after filtering and enter the central tube of fibre turntable by filter disc and the filter type of outer row for enter interior removing from mould outward; Sewage is introduced in filtering table, and after being filtered by filter disc, filtration clear water enters outer removing from mould filter tank in by filtering ponds outer row mode being.
Considering that filter disc is all or part of is immersed in sewage, and therefore, the cleaning way of filter disc is generally the filter cloth adopting anti-Smoking regime to clean filter disc below sewage level.When needs clean, open backwash pump, filter disc rotates, and sucker outwards absorbs water, and the foreign material on the fiber filter cloth surface being trapped in filter disc outwards wash down by fibre turntable by clear water, and cleaning waste water is discharged by water pump.But according to current actual state, this backwash is not thorough, reduces the removal effect of fiber rotary disc filter to TP and SS.
Utility model content
The utility model, for the above-mentioned deficiency of half immersion fiber rotary disc filter, provides a kind of half immersion fiber rotary disc filter jet douche device.The utility model is achieved through the following technical solutions:
A kind of half immersion fiber rotary disc filter jet douche device, comprising:
Some high pressure self-cleaning nozzles, are arranged at the both sides being positioned at each filter disc above sewage level of half immersion fiber rotary disc filter;
High-pressure injection water pump, connects the central tube of half immersion fiber rotary disc filter, and connects each high pressure self-cleaning nozzle by a flushing line;
Interior flushing tank, the central tube being arranged on half immersion fiber rotary disc filter is inner;
Outside flushing tank, the central tube being arranged on half immersion fiber rotary disc filter is outside;
In working order, clear water is injected at a certain angle the fiber filter cloth of filter disc from high pressure self-cleaning nozzle under the driving of high-pressure injection water pump, the impurity be attached in fiber filter cloth is followed clear water and is entered interior flushing tank and discharge, and the impurity being attached to fiber filter cloth outside is followed clear water and entered the outside tank that rinses and discharge.
Preferably, flushing line comprises:
Flushing line is responsible for, and connects high-pressure injection water pump;
Flushing line arm, connect flushing line supervisor, some high pressure self-cleaning nozzles connects flushing line arm, and in rotary moving and in rotary moving with flushing line arm.
Preferably, some flushing line arms connect flushing line supervisor by loose joint.
Preferably, the quantity of flushing line arm is that the quantity of filter disc adds 1.
Preferably, flushing line is provided with pressure indicator, gate valve and pressure maintaining valve, in order to prevent hydraulic pressure excessive.
Preferably, some high pressure self-cleaning nozzles comprise by the both sides being positioned at each filter disc above sewage level of arranging high pressure self-cleaning nozzle more and be arranged at respectively half immersion fiber rotary disc filter.
Preferably, it is U-shaped that interior flushing tank rinses tank with outside, and has certain slope, and the lower one end of the gradient is that outlet connects outside blowoff line.
Preferably, the gradient is 0.01.
Preferably, high-pressure injection water pump is 1 to 2, and the outlet pressure of high-pressure injection water pump is greater than 5kgf/cm
2, be 7kgf/cm to the maximum
2.
The utility model adds high pressure jet and wash mode in half immersion fiber rotary disc filter, high-pressure injection water pump utilizes the clear water filtering and obtain, high pressure self-cleaning nozzle is dispensed to by flushing line after pressurization, water under high pressure spurts into the fiber filter cloth of filter disc at a certain angle from high pressure self-cleaning nozzle, the water under high pressure being attached to foreign material inside and outside fiber filter cloth injected is taken away, fiber filter cloth filtration flux is recovered, water outlet TP can be low to moderate 0.1mg/L, there is dosing phosphorus removal functional, the be low to moderate 3mg/L of water outlet SS.
Accompanying drawing explanation
Shown in Fig. 1 is front perspective view of the present utility model;
Shown in Fig. 2 and Fig. 3 is two side perspective view of the present utility model respectively;
In figure, tank, 8-pressure indicator, 9-gate valve, 10-pressure maintaining valve, 11-loose joint are rinsed in 1-pond body, 2-fibre turntable, 3-high-pressure injection water pump, 4-flushing line, 5-high pressure self-cleaning nozzle, 6-interior flushing tank, 7-outside.
Detailed description of the invention
Below with reference to accompanying drawing of the present utility model; clear, complete description and discussion are carried out to the technical scheme in the utility model embodiment; obviously; as described herein is only a part of example of the present utility model; it is not whole examples; based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to protection domain of the present utility model.
For the ease of the understanding to the utility model embodiment, be further explained for specific embodiment below in conjunction with accompanying drawing, and each embodiment does not form the restriction to the utility model embodiment.
As shown in Figure 1 to Figure 3, the half immersion fiber rotary disc filter jet douche device that the utility model provides, be arranged on pond body 1 and fibre turntable 2, comprise spray water jetting at high pressure pump 3, flushing line 4, high pressure self-cleaning nozzle 5, interior flushing tank 6, outside flushing tank 7.Pond body 1 and fibre turntable 2 are prior art, fibre turntable 2 is distributed with some filter discs, and be each 10 filter discs up and down in Fig. 1, the utility model does not limit this, filter disc is provided with fiber filter cloth, and the clear water filtered through fiber filter cloth enters central tube in fibre turntable 2 and discharges and reclaim.High pressure self-cleaning nozzle 5 is arranged at the both sides being positioned at each filter disc above sewage level of half immersion fiber rotary disc filter.
Clear water in high-pressure injection water pump 3 vacuum fibers rotating disk 2 inner central tube after filtering, high pressure self-cleaning nozzle 5 is dispensed to by flushing line 4 after pressurization, water under high pressure spurts into the fiber filter cloth filter disc 2 from high pressure self-cleaning nozzle 5 at a certain angle, the foreign material be attached to inside and outside fiber filter cloth are taken away by water under high pressure, and the filtration flux of fiber filter cloth is recovered; The flushing water carrying foreign material is discharged in the lump by the interior flushing tank 6 of fibre turntable 2, outside flushing after tank 7 is collected respectively.
Flushing line 4 at least comprises pressure indicator 8, gate valve 9, pressure maintaining valve 10, loose joint 11, pipeline etc., and pressure indicator 8 can show flushing line 4 pressure; Gate valve 9 is in order to open flushing line; The instantaneous pressure excessive damage that fiber filter cloth is caused when pressure maintaining valve 10 can prevent jet pump 3 from starting; Loose joint 11 is in order to connect flushing line arm and supervisor, and arm can in rotary moving, maintenance overhaul.
Flushing line 4 comprises flushing line supervisor and flushing line arm, flushing line arm and flushing line are responsible for be connected and are adopted loose joint to connect, install and maintenance time, flushing line arm and self-cleaning nozzle thereof can in rotary moving, maintenance overhauls, and arm quantity is that fibre turntable number adds 1.Each flushing arm end is connected with the multiple high pressure self-cleaning nozzle 5 of a row, high pressure self-cleaning nozzle 5 bore and specification can adjust according to filtering water, high pressure self-cleaning nozzle 5 can rotate and upgrade with flushing arm, maintenance overhaul, self-cleaning nozzle adopts ABS material, and high pressure self-cleaning nozzle 5 quantity adjusts according to the diameter of fibre turntable 2.
In the present embodiment, jet pump 3 is positioned at fabric filter one end, flushing line 4 can be arranged in pond body 1 inside/outside, high pressure self-cleaning nozzle 5 is arranged in more than fibre turntable liquid level, interior flushing tank 6 to be arranged in core barrel and not to be flooded by peak level in core barrel, outsidely rinses tank 7 to be arranged in central tube outer and do not flooded by peak level in pond, within peak level and the outer peak level difference of central tube remain on 0.3m in central tube, be specially 0.25m.
High-pressure injection water pump 3 adopts long-shaft pump type under liquid, and every platform fiber rotary disc filter comprises 1 to 2 high-pressure injection water pump 3, and pump discharge pressure is greater than 5 kgf/cm
2, be 7kgf/cm to the maximum
2.The central tube that interior flushing tank 6 is arranged on fibre turntable 2 is inner, the central tube that outside flushing tank 7 is arranged on half immersion fiber rotary disc filter is outside, be U-shaped, U-shaped top adopts quality of rubber materials, be provided with 0.01 gradient bottom U-shaped, the lower one end of tank is provided with connecting line and leads to outside blowoff line.
In sum, the utility model also has the following advantages:
1) enhance fiber rotary disc filter opposing pollutant performance, improve filter effluent quality.
2) the utility model adopts high pressure jet and wash, and fiber rotary disc filter filtration flux recovers more thorough.
3) flushing line that relates to of the utility model is safe and reliable, and arm adopt loose joint connect can in rotary moving, installation and maintenance inspection convenient.
4) self-cleaning nozzle that relates to of the utility model, self-cleaning nozzle bore and specification can adjust according to filtering water, and self-cleaning nozzle quantity can adjust according to fibre turntable diameter, changes separately, arrange flexibly.
5) the flushing tank that relates to of the utility model, arranges rationally, and after flushing waste water and filter, water is effectively isolated.
In addition, adopt the fiber rotary disc filter high-pressure flushing device of half immersion of the present utility model, filter rinses thoroughly, filtration flux recovers thoroughly, under filter front adds macromolecule organic situation, water outlet TP can be low to moderate 0.1mg/L, the be low to moderate 3mg/L of water outlet SS.Adopt fiber rotary disc filter of the present invention, stable water outlet is up to standard, has a good application prospect.
The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.