CN201719906U - Fibre turnplate filter for depth-type sewage filtration treatment - Google Patents

Abstract

The utility model relates to a fibre turnplate filter for depth-type sewage filtration treatment, belonging to the field of sewage treatment. A pool body comprises a sewage pool and a clear water pool which are mutually communicated, and a round shaft is fixed in the sewage pool through a front support, a middle support and a back support, and is connected with a transmission mechanism. A plurality of rotating filter discs are respectively fixed with the round shaft, and the outer ring of the rotating filter discs is provided with an outer pressure plate. The suction disc fixing device of a filter cloth reverse suction device is arranged at the sides of rotating filter discs, the suction disc is provided with a suction mouth, and a mud pumping pipe is arranged at the bottom part of the sewage pool. By the utility model, the occupied area of a filter plant is reduced, and treatment expense of water/ton is reduced.

Description

Fiber Rotary Disc Filter for Advanced Sewage Filtration Treatment

technical field

The utility model relates to a fiber turntable filter for deep filtration treatment of sewage, which is suitable for the upgrade of effluent water after biochemical treatment in urban sewage treatment plants and the filtration of suspended matter after adding medicine and phosphorus removal in the reclaimed water treatment process, and belongs to sewage treatment

Background technique

Most of the filter materials used in the current prior art are arranged horizontally. The disadvantage is that the suspended solids in the water will soon deposit on the surface of the filter material and block the water flow channel. Therefore, the suspended solids in the influent The impact resistance of the load is small; the energy consumption of backwashing is large; the service life of the filter material is short. Especially the biochemically treated effluent from the sewage treatment plant is easy to form biofilm on the surface of the filter material and harden it. Also because the filter material is arranged horizontally, the floor area of the equipment is very large. Therefore existing various filtering equipment not only cost height, and processing cost is also very high. the

Contents of the invention

The purpose of this utility model is to propose a fiber turntable filter tank for advanced sewage filtration treatment, and to improve the structure of the existing filter equipment, so that the filter equipment occupies a small area and the treatment cost per ton of water is low. the

The fiber turntable filter for deep filtration treatment of sewage proposed by the utility model includes: a pool body, a filter outlet pipe, a filter disc, a transmission mechanism, a filter device and a sewage discharge device. The pool body is composed of a sewage pool and a clean water pool. The pool and the clear water pool are connected to each other by water holes. A water inlet is arranged on the wall of the sewage pool, and a water inlet weir is arranged along the length direction of the sewage pool, and the water inlet weir is connected with the water inlet. A water outlet is provided on the wall of the clear water pool, and an adjustable water outlet weir is arranged in the clear water pool. The circular body shaft is fixed in the sewage pool through the front support, the middle support and the rear support. There are water inlet holes on the circular body shaft, and the circular body shaft is connected with the transmission mechanism fixed above the sewage pool. There are multiple rotary filter discs, which are relatively fixed to the axis of the circular body respectively, and the outer ring of the rotary filter disc is provided with an outer pressure plate. The filter cloth reverse suction device consists of a suction cup, a connecting pipe, an electric valve and a reverse suction water pump. The reverse suction water pump is fixed above the pool body, and the suction cup is fixed by the suction cup relatively fixed to the wall of the pool body. The fixing device is on the side of the rotating filter plate, and the suction plate is provided with a suction port, which is connected with the reverse suction pump above the pool body through a communication pipe and an electric valve. The mud pumping pipe is placed at the bottom of the sewage tank, and the mud pumping pipe is connected with the reverse suction water pump above the tank body through a connecting pipe and an electric valve. the

In the above-mentioned fiber rotating disk filter, the rotating filter disk is formed by splicing a plurality of small disks, each small disk is composed of a filter disk skeleton and a fiber filter cloth, and the fiber filter cloth is set on the filter disk skeleton; The fiber filter cloth is made of polytetrafluoroethylene fibers folded and woven into the base cloth, the length of each polytetrafluoroethylene fiber is 20mm-40mm, and the density of polytetrafluoroethylene fibers on the base cloth is 50-200/cm. the

In the above-mentioned fiber rotary disc filter, the section of the suction port is continuously variable, the radius of the opening of the inner circle is r=10mm-20mm, and the radius of the opening of the outer circle is R=1.8*r. the

The utility model proposes a fiber turntable filter tank for advanced sewage filtration treatment, which has the advantages that the circular body axis is arranged horizontally, the filter disc is arranged vertically, and the fiber filter cloth with hydrophobic function is used, so that the suspended matter in the water is not easy to Bonded to the filter disc, the suspended solids will fall off automatically when accumulated to a certain extent, so the number of back suction can be greatly reduced in the water treatment process, thereby reducing energy consumption and equipment operating costs. The wear between the suction cup and the filter cloth in the back suction device is very small, so the service life of the filter cloth is long. The concentration of suspended solids in the effluent does not change with the change of load, and it can still work normally under the impact of high load, and the removal rate of suspended solids is high. The fiber turntable filter tank of the utility model is convenient for the combined design of multiple sets, so that the occupied area of the equipment is very small, and the treatment cost per ton of water is very low. the

Description of drawings

Fig. 1 is a structural schematic diagram of the fiber rotary disc filter tank of the utility model for advanced sewage filtration treatment. the

FIG. 2 is a cross-sectional view along line A-A of FIG. 1 . the

Figure 3 is an enlarged view of the filter cloth back-suction device and suction cup. the

Figure 4 is an enlarged view of the suction port on the suction cup. the

Fig. 5 is a B-B sectional view of Fig. 2 . the

In Figures 1 to 5, 1 is the pool body, 2 is the water inlet, 3 is the water inlet weir, 4 is the adjustable water outlet weir, 5 is the circular shaft, 7 is the suction cup fixing device, 7-1 is the suction cup fixing spring, 7-2 is the fixed leg of the suction cup, 8 is the suction cup, 8-1 is the suction port of the suction cup, 9 is the connecting pipe, 10 is the water outlet, 11 is the rotary filter disc, 11-1 is the outer pressure plate of the rotary filter disc, and 12 is the fiber filter Cloth, 13 is the filter disc frame, 14 is the mud suction pipe, 15 is the rear support, 16 is the middle support, 17 is the front support, 18 is the transmission mechanism, 19 is the electric valve, 20 is the reverse suction pump, 21 is the sewage tank , 22 is a clear water pool, 23 is a water hole,

Detailed ways

The structure of the fiber rotary disc filter tank for deep filtration treatment of sewage proposed by the utility model is shown in Figure 1 and Figure 2, including: a pool body 1, a circular shaft 5, a rotating filter disc 11, a transmission mechanism 18, and a filter cloth Back suction device and mud suction pipe. The pool body is made up of a sewage pool 21 and a clean water pool 22, and the sewage pool 21 and the clean water pool 22 are connected to each other by a water hole 23. A water inlet 2 is provided on the wall of the sewage tank, and a water inlet weir 3 is provided along the length direction of the sewage tank, and the water inlet weir 3 communicates with the water inlet 2 . The wall of the clear water pool is provided with a water outlet 10, and an adjustable water outlet weir 4 is arranged in the clear water pool. Circular body shaft 5 is fixed in the sewage tank 21 by front support 17, middle support 16 and back support 15, has water inlet hole on the circular body shaft 5, and circular body shaft 5 links to each other with the transmission mechanism 18 that is fixed on the sewage tank top. There are a plurality of rotary filter discs 11, which are respectively fixed relative to the circular shaft 5, and the outer ring of the rotary filter disc 11 is provided with an outer pressure plate 11-1. The structure of the filter cloth back-suction device is shown in Figure 2 and Figure 4. It consists of a suction cup 8, a communication pipe 9, an electric valve 19 and a back-suction water pump 20. The back-suction water pump 20 is fixed above the pool body 1, and the suction cup 8 The suction cup fixing device 7 is fixed on the side of the rotary filter disc 11 through the suction cup fixing device 7 fixed relatively to the wall of the pool body. The suction cup 8 is provided with a suction port 8-1. Suction pump 20 is connected. The mud pumping pipe 14 is placed at the bottom of the sewage pool 21, and the mud pumping pipe 14 is connected to the reverse suction water pump 20 on the top of the pool body 1 through the communication pipe 9 and the electric valve 19. the

Claims (3)

1. the fibre turntable filter handled of a sewage water depth-type filtration, it is characterized in that: form by pond body, circle axle, rotation filter disc, transmission mechanism, filter and blowdown apparatus, the pond body is made up of cesspool and close clear water reserviors, be interconnected by the limbers between cesspool and the clear water reserviors, the sewage pool wall is provided with water inlet, the length direction of cesspool is provided with influent weir, and influent weir is connected with water inlet; The clear water pool wall is provided with delivery port, is provided with adjustable effluent weir in the clear water reserviors; The circle axle by preceding support, intermediate supports and after be supported and fixed in the cesspool, have the inlet opening on the circle axle, the circle axle links to each other with the transmission mechanism that is fixed on the cesspool top, and the rotation filter disc has a plurality of, with circle axle relative fixed, the outer ring of rotation filter disc is provided with outer plate respectively; The filter cloth back suction is inhaled device and is made up of sucker, connecting pipe, motor-driven valve and back suction pulsating pump, described back suction pulsating pump is fixed on body top, described pond, described sucker by with the relatively-stationary sucker fixing of pond body wall the rotation filter disc the side, sucker is provided with suction inlet, and suction inlet links to each other with the back suction sucking pump of motor-driven valve with pond body top by connecting pipe; Extraction mud pipe places the cesspool bottom, and extraction mud pipe links to each other with the back suction pulsating pump of motor-driven valve with pond body top by connecting pipe.

2. fibre turntable filter as claimed in claim 1 is characterized in that: be spliced mutually by a plurality of shallow bids, each shallow bid is made up of filter disc skeleton and fiber filter cloth, and fiber filter cloth is sleeved on the filter disc skeleton; Described fiber filter cloth is woven in the base fabric by the polytetrafluoroethylene fibre doubling and makes, and the length of every polytetrafluoroethylene fibre is 20mm～40mm, and the density of polytetrafluoroethylene fibre is 50～200/cm on the base fabric.

3. fibre turntable filter as claimed in claim 1 is characterized in that: the cross section of suction inlet is a continuous variable cross section, the radius r=10mm of inner lane opening～20mm, the radius R=1.8*r of outer ring opening.

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