CN202876496U - Air-lift rapid circulating filter cloth filter chamber - Google Patents

Abstract

The utility model relates to an air-lift rapid circulating filter cloth filter chamber mainly comprising a filter chamber body. The air-lift rapid circulating filter cloth filter chamber is characterized in that a water distributing zone, a clean water zone and a water inlet zone are arranged inside the filter chamber body; the water distributing zone is arranged below the clean water zone; partition boards are arranged in the water distributing zone and the clean water zone; the water inlet zone is arranged at one side of the filter chamber body; a master water inlet pipe is connected to the upper side of the water inlet zone; the water inlet zone is communicated with the water distributing zone through a water inlet branch pipe; a perforating air distributing pipe and a perforating water distributing pipe are arranged inside the water distributing zone; and a filter element and an air-lift accessory are arranged on the stainless steel plate. The air-lift rapid circulating filter cloth filter chamber disclosed by the utility model has the biggest advantages that an independent back-flushing device is not needed, few power plants are needed, and back-flushing period is long compared with the other filter cloth filter chambers.

Description

A kind of air lift Rapid Circulation formula filtering cloth filtering pool

Technical field

The utility model relates to the technical field of water treatment facilities, specifically a kind of air lift Rapid Circulation formula filtering cloth filtering pool that is applied to advanced treatment of wastewater and middle water reuse.

Background technology

The filtering cloth filtering pool technology is a kind of novel surface filtering technique that development in recent years is got up, alternative traditional deep-bed filtration equipment, because of its compact conformation, the characteristics such as the loss of flood peak is little, floor space is few, disposal cost is low, in advanced treatment of wastewater, show up prominently in recent years.The type of filtering cloth filtering pool mainly is divided into two kinds in the market, turntable filter chamber and tabular filter tank.

Turntable filter chamber is a kind of filtering cloth filtering pool technique of present comparative maturity, the Aqua disk that U.S. Aqua-Aerobic Systems company provides is widely used, the filtered water stream direction from outside to inside, carry out backwash by dial rotation, the fixing back suction suction mode of sucker, PuHua Stock Co., Ltd is to the aqua disk fibre turntable filter chamber that carried out a series of optimization utility model, and be successfully applied to the domestic market, the major advantage in these two kinds of filter tanks is: wash easy, water consumption is few.Shortcoming is: the contact filter layer of cloth carries out the back suction suction and is easy to extract out with the wearing and tearing of filter cloth top layer and with the long wool line and affect filter effect, and filter disc constantly rotation in back flushing process, and this kind underwater engine equipment is very easily damaged; The forty-X that simens water technologies company provides ^TMWhat Disc Filter adopted is a kind of filter type from inside to outside, backwash then is by water under high pressure the filter disc top area to be carried out high pressure washing from outside to inside, backwashing water directly falls into the backwash effluent trough of filter disc internal upper part and discharges, the advantage of this kind filter tank form is: mouth spray needn't directly contact filter cloth during backwash, thereby can not cause wearing and tearing to filter cloth.Shortcoming is: the backwash effluent trough is located at the filter disc internal upper part, and the deposit of bottom can't be discharged the pond body in the filter disc.

The engineering in tabular filter tank is used relatively less, fixed plate cloth media filtration that FLUIDYNE company provides adopts is from inside to outside filtered version, realize the normal Inlet and outlet water in filter tank by the mode of gas punching and the frequent unlatching of a plurality of electrically operated valves during the backwash, major advantage is: the unpowered equipment of part under the pool inner water.Shortcoming is: need many electrically operated valve control back-flushing operations, investment cost increase and electrically operated valve are wayward easily damaged; The vertical sheet filter of Town in Shanghai ancient cooking vessel Ji water treatment Science and Technology Ltd. utility model adopts is from outside to inside filtered version, what backwash was adopted is that driving drives the sucker motion, the fixing back suction of filter disc is inhaled mode, major advantage is: unpowered equipment under the pool inner water, to wash easyly, and water consumption is few.Major defect is: need contact filter cloth during backwash, easily cause the wearing and tearing on filter cloth surface, and the filter cloth assembly is that the bottom is fixed, change difficulty.

At present the research of filtering cloth filtering pool is concentrated on the selection of backwash mode, the backwash mode of the filtering cloth filtering pool of above-mentioned two kinds of forms can both reach good developing result, but flushing device is complicated, and require highly to accuracy is installed, the method for operation of seeking a kind of novel minimizing power-equipment is very favourable to the development of filtering cloth filtering pool.Airlift loop reactor be a kind of with source of the gas as power, utilize reacting gas injection can and the interior poor formed pressure difference of severe of reactor as power, cause Fluid Circulation, reach the reactor of gas-liquid mixed.The air-lift device of this kind form is simple in structure, inner movement-less part, fluid effect is splendid, can make solid particle even heavier particle keep suspended state fully, also can realize circulating of current in the dry pump situation, and can reach the effect of removing polluter, and have at present the research that the air lift recirculation reactor is applied to sanitary sewage disposal, proposed the theory of air lift is applied to the new idea of filtering cloth filtering pool operation at this.

The utility model content

The purpose of this utility model is to provide a kind of air lift Rapid Circulation formula filtering cloth filtering pool, during operation by the negative pressure fast lifting sewage of γ-ray emission, the mixed liquor of sewage and floating stuffing forms the current scour filter cloth surface of Rapid Circulation in filter core simultaneously, namely, constantly the filter cloth surface is washed in the time of operation, thereby slowed down obstruction; Blowoff valve is opened automatically during recoil, water oppositely reaches the purpose of water punching after the filter by filter cloth, acting in conjunction by surface washing and sluicing reaches the purpose of thoroughly cleaning the filter cloth surface deposits, if the flushing under the normal operation fails effectively to reduce filtration resistance, can strengthen aeration rate, water movement speed is accelerated, and scouring intensity strengthens, reach better developing result, flushing water is finally discharged the pond body through discharge pipe line.

To achieve these goals, the technical solution of the utility model is: a kind of air lift Rapid Circulation formula filtering cloth filtering pool, it mainly comprises the filter tank, it is characterized in that: described filter tank comprises water distributing area and clear water zone, water distributing area is located at the clear water zone below, water distributing area and clear water zone are provided with dividing plate, establish perforation gas-distribution pipe and perforation sparge pipe in the water distributing area, and corrosion resistant plate is equipped with filter core and air lift accessory.According to specific embodiment of the utility model, clear water zone one side is provided with the Graceful water pipe, perforation sparge pipe uniform spreading is located at every lattice water distributing area bottom, the air lift accessory is loaded in the accessory hole on the corrosion resistant plate, the filter core socket joint on the air lift accessory, the perforation gas-distribution pipe be located at air lift accessory in the water distributing area under.The air lift accessory comprises gas-collecting pipe, and described gas-collecting pipe top is provided with plectane, the plectane center drilling, and the position of opening of described plectane is welded with central intake pipe.Seal ring links to each other with plectane by fixing muscle, is symmetrically welded with four clips bottom the seal ring, and the socket joint baffle tube is welded on seal ring top.Described filter core comprises central tube and is set in the outer filter cloth support of central tube, the filter cloth support is made by stainless (steel) wire, filter cloth support inboard or outside tiling filter cloth, central tube is fixedly connected with outside filter cloth support by the central tube support, filter screen is established in the nearly bottom of filter core, the perforate of filter screen center, the central intake pipe of air lift accessory is installed in the filter screen centre bore.

In the utility model when operation, is by the negative pressure fast lifting sewage of γ-ray emission, the mixed liquor of sewage and floating stuffing forms the current scour filter cloth surface of Rapid Circulation in filter core simultaneously, that is, constantly the filter cloth surface is washed in the time of operation, thereby slowed down obstruction; Blowoff valve is opened automatically during recoil, water oppositely reaches the purpose of water punching after the filter by filter cloth, acting in conjunction by surface washing and sluicing reaches the purpose of thoroughly cleaning the filter cloth surface deposits, if the flushing under the normal operation fails effectively to reduce filtration resistance, can strengthen aeration rate, water movement speed is accelerated, and scouring intensity strengthens, reach better developing result, flushing water is finally discharged the pond body through discharge pipe line.The sharpest edges of filtering cloth filtering pool of the present utility model are to need not independently backwashing equipment, and power-equipment is few, the recoil cycle is long.

Description of drawings

Fig. 1 is filter tank of the present utility model lower floor planar structure schematic diagram.

Fig. 2 is corrosion resistant plate layer plane structural representation of the present utility model.

Fig. 3 is upper strata, filter tank of the present utility model planar structure schematic diagram.

Fig. 4 is the 1-1 generalized section of Fig. 3.

Fig. 5 is filter cartridge construction schematic diagram of the present utility model.

Fig. 6 is the stainless steel filtering net layer plane structural representation of filter core of the present utility model.

Fig. 7 is air lift accessory elevational schematic view of the present utility model.

Fig. 8 is air lift accessory floor map of the present utility model.

Water (flow) direction schematic diagram when Fig. 9 is filter core operation of the present utility model.

The specific embodiment:

The utility model will be further described below in conjunction with drawings and Examples.

Mark is as follows in each accompanying drawing: water distributing area 1, clear water zone 2, inhalant region 3, water inlet manifold 4, water inlet pipe 5, blowoff valve 6, main sewer 7, intermediate plate 8, the inlet manifold 9, intake valve 10, air intake branch 11, filter core 12, air lift accessory 13, corrosion resistant plate 14, water inlet mozzle 15, water inlet sparge pipe 16, ball float 17, clip hole 18, accessory hole 19, floating stuffing 20, central tube 21, filter screen 22, rubber sheet gasket 23, filter screen centre bore 24, central tube support 25, filter cloth support 26, suspension ring 27, socket joint baffle tube 28, seal ring 29, clip 30, gas-collecting pipe 31, central intake pipe 32, fixedly muscle 33, plectane 34, perforation hole sparge pipe 35, perforation gas-distribution pipe 36, water inlet water conservancy diversion pore 37, Graceful water pipe 38.

The utility model mainly comprises the filter tank, and its difference with the prior art is: described filter tank is provided with water distributing area 1, and clear water zone 2 and inhalant region 3, water distributing area 1 are located at clear water zone 2 belows, is separated by by corrosion resistant plate 14, and inhalant region 3 is located at pond body one side.Water inlet manifold 4 is connected to inhalant region 3 upsides, and perforation sparge pipe 35 uniform spreadings are located at every lattice water distributing area 1 bottom.Perforation gas-distribution pipe 36 be located at gas accessory 13 in the water distributing area under, filter core 12 socket joints are on air lift accessory 13, air lift accessory 13 is loaded in the accessory hole 19 on the corrosion resistant plate 14 and is fixing by clip 30 rotations.

Described filter core 12 inside are provided with central tube 21, and are fixing by central tube support 25.Filter cloth support 26 is made by stainless (steel) wire, inboard or outside tiling filter cloth, and the inner floating stuffing 20 of filling, filter screen 22 is established in nearly bottom, and the central intake pipe 32 that filter screen centre bore 24 is used on the assembly air lift accessory 13 is established at filter screen 22 centers.Establish rubber sheet gasket 23 and corrosion resistant plate 14 sealings around filter core 12 bottoms.As shown in Figure 5 and Figure 6.

Gas-collecting pipe 31 tops of described air lift accessory 13 need to seal with plectane 34, plectane 34 center drillings, central intake pipe 32 is welded in the position with pores of plectane 34, seal ring 29 passes through fixedly, and muscle 33 links to each other with plectane 34, four clips 30 are symmetrically welded in seal ring 29 bottoms, seal ring 29 tops welding socket joint baffle tube 28, plectane 34 bottom welding gas-collecting pipes 31, as shown in Figure 7 and Figure 8.The filter core support 26 of described filter core 12 is set in socket joint baffle tube 28, and by rubber sheet gasket 23 and corrosion resistant plate 14 sealings.

Be provided with into water sparge pipe 16 in the described inhalant region 3, every lattice water distributing area correspondence is established a water inlet sparge pipe 16.Establish water inlet mozzle 15 in the water inlet sparge pipe 16, water inlet mozzle 15 downsides are closely managed the even evolution shape water inlet in bottom water conservancy diversion pore 37, be of a size of 20mm * 80mm, establish 17 1 of ball floats in the water inlet mozzle 15, mozzle 15 belows communicate with water inlet pipe 5, and water inlet pipe 5 links to each other with perforation sparge pipe 35 in the water distributing area 1.Water inlet mozzle 15 highly is higher than the ordinary water level height, and sparge pipe 16 highly is lower than the ordinary water level height.As shown in Figure 3.

Described water distributing area 1 is divided into 2 ~ 8 water distribution cells by intermediate plate 8, the normal operation of system during with realization recoil draining.As shown in Figure 1.

Described perforation sparge pipe 35 even perforates, perforation gas-distribution pipe 36 is positioned at the part perforate under the gas-collecting pipe 31.As shown in Figure 3.Described perforation sparge pipe also can be used as the blow-off pipe of backwash, and the sewage collecting of every lattice water distributing area is collected to main sewer, establishes blowoff valve on the main sewer.

Open accessory hole 19 on the described corrosion resistant plate 14, symmetry is opened four clip holes 18 around each accessory hole 19, matches with the clip 30 of seal ring 29 bottoms of air lift accessory 13, in order to air lift accessory 13 to be installed.

In the enforcement, sewage at first flows into inhalant region 3, carry out water distribution through water inlet sparge pipe 16, then the water inlet water conservancy diversion pore 37 through water inlet mozzle 15 downsides flows in the water inlet mozzle 15, rely on flow by gravity to water inlet pipe 5, to flow in the water distributing area 1 through the 35 even water outlets of water inlet pipe hole, enter in the filter core 12 by the seal ring 29 of air lift accessory and the gap between the plectane 34.Air evenly discharges after air intake branch 11 enters perforation gas-distribution pipe 36, by gas-collecting pipe 31 centralized collection, discharge by central intake pipe 32, the air that discharges is with after sewage mixes, the mixed liquor density that forms is low than stoste density, the liquid level that density contrast forms central intake pipe 32 inside and outside liquid changes, the mixed liquor fast rise that density is little, gas in the mixed liquor enters in the air after rising to liquid level, and sewage falls between central tube 21 and the filter cloth support 26 after rising to central tube 21 tops, part of contaminated water flows into clear water zone 2 behind filter-cloth filtering, again through 38 dischargings of Graceful water pipe, part of contaminated water flow to from top to bottom and forms new mixed liquor with gas behind filter core 12 belows and continue to move upward, thereby forms sewage circulating in filter core 12.Because the effect of air lift, water velocity in the filter core 12 is much larger than the water speed that filters out in filter tank, floating stuffing 20 follows the sewage one filter core 12 interior Rapid Circulations that coexist to flow, be that the filter tank is in the process of moving simultaneously water outlet and flushing, this kind method of operation is difficult for causing the deposition of filter cloth surfactant suspension thing, prolonged the obstruction cycle, and the further organic matter in the degradation of sewage of aeration, namely also can slow down obstruction.

The filter tank is after operation a period of time, and filter cloth stops up serious, causes the water outlet difficulty, needs backwash this moment.Backwash is carried out successively according to several subdivision lattice of water distributing area, the blowoff valve 6 of a certain cell is opened automatically, backwashing water constantly is discharged from the pond body, because after blowoff valve 6 is opened, resistance to water-flow reduces, and the water level in the water inlet mozzle 15 descends rapidly, and ball float 17 descends simultaneously and the water conservancy diversion pore 37 of will intaking is blocked, be that raw sewage can not continue to discharge, do not affect the normal operation of other cells.Behind the recoil 3-5min, sewage in this cell is discharged substantially fully, this moment blowoff valve 6 autoshutdowns because resistance increases, ball float 17 is rushed floating to the water surface, water inlet pod apertures 37 begins water outlet again, if fail to reach the effect of effective reduction filtration resistance in the normal aeration situation, can and increase aeration rate, thereby accelerate circulating of filter core 12 interior sewage and floating stuffing 20, that is floating stuffing 20 increases with the scouring intensity that water carries out the filter cloth surface, reaches better developing result.Carry out successively the backwash of other several cells.

After filter tank operation 5 years or longer time, filter cloth is aging, and the effluent quality variation needs more renew cartridge 12 this moment.More during renew cartridge 12, the filter tank need stop into water, need by suspension ring 27 filter core 12 to be extracted out, and the filter core 12 that more renews, socket joint gets final product again.

The specific characteristic that novel filtering cloth filtering pool of the present utility model is compared with other filtering cloth filtering pools is:

1. adopt the mode of air lift to realize that the Rapid Circulation of sewage in filter core flows, both the filter cloth surface was washed away, prolonged the obstruction cycle, can further reduce organic concentration in the sewage because of aeration again.

2. need not to increase backwashing equipment.The sucker that the disc filter tank that present domestic and international application is more and vertical sheet filter etc. all drive in the suction pump by the purlin car is close to the filter cloth apparent motion, adopt Smoking regime from inside to outside to finish backwash, not only wearing and tearing have been caused on the filter cloth surface but also the situation of underwater engine device damage very easily occurred.The backwash of Novel filter of the present utility model can realize washing away fast of filter cloth surface by increasing aeration rate, can finish backwash by the sewage of discharging water distributing area, need not newly-increased backwashing equipment, reduce cost.

3. pond, filter tank body need not to establish separately discharge pipeline, the blowdown effect of can holding concurrently simultaneously of perforation sparge pipe.The sewage of the emptying water distribution cell of automatic unlatching by blowoff valve during novel filtering cloth filtering pool backwash of the present utility model can realize that water discharge time is short, and 3 ~ 5min can realize, and adopts the mode of lattice backwash, does not affect the normal operation in filter tank during blowdown.

4. filter area is larger.The clear water zone part of the utility model filtering cloth filtering pool so the filter core layout can be more compact, has reduced floor space without other operating equipments.

5. back-flushing operation is more stable, and is simple to operate.Filtering cloth filtering pool backwash of the present utility model can be finished by increasing aeration rate and draining, operates comparatively simple.

6. change simple to operate.Filter element replacing only needs to promote the filter core socket joint by suspension ring and gets final product in the socket joint baffle tube, and the air lift accessory also is to finish installation by the rotation clip, and maintain and replace is simple.

7. require relatively not high to precision of equipment installation.The sucker mouth that all need satisfy backwashing equipment when turntable filter chamber commonly used and vertical sheet filter are installed at present fits tightly in the filter disc surface, the installation accuracy of every a slice filter disc is had relatively high expectations, and the utility model is general to the installation accuracy requirement of filter core.

8. influent quality is required to reduce.Owing to place floating stuffing in the filter core, can in water inlet, add a small amount of medicine, little wadding reaction occurs in filter core, large settling of floccus is regularly discharged the pond body to the water distributing area bottom,, can omit the coagulative precipitation tank of pre-treatment that is.

Claims (6)

1. air lift Rapid Circulation formula filtering cloth filtering pool, it mainly comprises the filter tank, it is characterized in that: described filter tank is provided with water distributing area and clear water zone, water distributing area is located at the clear water zone below, water distributing area and clear water zone are provided with dividing plate, establish perforation gas-distribution pipe and perforation sparge pipe in the water distributing area, dividing plate is equipped with filter core and air lift accessory.

2. filtering cloth filtering pool according to claim 1, it is characterized in that: described dividing plate is corrosion resistant plate, clear water zone one side is provided with the Graceful water pipe, perforation sparge pipe uniform spreading is located at every lattice water distributing area bottom, the air lift accessory is loaded in the accessory hole on the corrosion resistant plate, the filter core socket joint on the air lift accessory, the perforation gas-distribution pipe be located at air lift accessory in the water distributing area under.

3. filtering cloth filtering pool according to claim 2, it is characterized in that: the air lift accessory comprises gas-collecting pipe, described gas-collecting pipe top is provided with plectane, the plectane center drilling, the position of opening of described plectane is welded with central intake pipe.

4. filtering cloth filtering pool according to claim 3, it is characterized in that: described filter core comprises central tube and is set in the outer filter cloth support of central tube, the filter cloth support is made by stainless (steel) wire, filter cloth support inboard or outside tiling filter cloth, central tube is fixedly connected with outside filter cloth support by the central tube support, filter screen is established in the nearly bottom of filter core, the perforate of filter screen center, and the central intake pipe of air lift accessory is installed in the filter screen centre bore.

5. a kind of filtering cloth filtering pool according to claim 4, it is characterized in that: the air lift accessory also is provided with seal ring, and seal ring links to each other with plectane by fixing muscle, and the socket joint baffle tube is welded on seal ring top, and the seal ring bottom welding has a plurality of clips.

6. the filtering cloth filtering pool of stating according to claim 2 is characterized in that: the filter core place is installed on the described corrosion resistant plate opens the accessory hole, symmetry is opened a plurality of clips hole around each accessory hole.

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