CN215462358U - External water inlet type reverse suction filtering system - Google Patents

Abstract

The utility model discloses an external water inlet type reverse suction filtration system which comprises a filter tank, wherein a central water outlet pipe is arranged in the filter tank, a plurality of filter discs are arranged on the outer wall of the central water outlet pipe, a reverse suction device is arranged on one side of each filter disc, the inlet of each reverse suction device is connected with a suction hose, the two ends of the central water outlet pipe are respectively provided with a water distribution weir and a driving device, one side of each driving device is provided with a water outlet overflow weir, the bottom of the inner tank of the filter tank is provided with a perforated pipe, the outer side of the filter tank is provided with two sludge discharge pumps, the inlets of the sludge discharge pumps are connected with a plurality of sludge discharge electric valves, and one ends of the sludge discharge electric valves are provided with sludge discharge pipes. The utility model improves a backflushing sludge discharge system, the regeneration of the filter cloth is carried out by adopting a backflushing mode, and the sludge attached and stored on the surface of the filter cloth can be better eluted; the sludge pump adopts a non-blocking centrifugal pump, integrates backwashing and sludge discharge, and solves the problems of poor backwashing effect of the filter pool and blockage of the sludge pump.

Description

External water inlet type reverse suction filtering system

Technical Field

The utility model relates to the field of filtering equipment, in particular to an external water inlet type reverse suction filtering system.

Background

The rotary disc filter is used for removing suspended solid impurities in water, has the characteristics of small occupied area, simple and convenient installation, high automation degree and the like, and is widely applied to the field of sewage treatment; the requirement of the external water inlet type on automatic control is higher, and the external water inlet type rotary disc filter is applied and developed more and more along with the development of the automatic control technology.

The working principle of the external water inlet type rotary disc filter is as follows: the sewage enters the filter tank by gravity flow or pressure flow, after the sewage is filtered by the filter cloth, filtrate is collected by the hollow pipe, sludge trapped outside the filter cloth gradually forms a sludge layer, the filtering resistance is gradually increased, the water level of the filter tank is raised, when the water level difference in the filter tank reaches a backwashing set value, the PLC starts the backwashing pump to start backwashing, sludge accumulated at the bottom of the filter tank is periodically discharged by the sludge discharge pump, and the whole system automatically operates.

The existing external water inlet type rotary disc filter has the problems of poor back washing effect, high sludge content of inlet water due to improper operation management in China and easy blockage of a sludge discharge pump.

Therefore, it is desirable to provide an external water intake reverse suction filtration system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an external water inlet type reverse suction filtration system to solve the problems that the existing external water inlet type rotary disc filter has poor back washing effect and a sludge discharge pump is easy to block due to improper operation management and high sludge content of inlet water in China.

In order to achieve the above purpose, the utility model provides the following technical scheme: an external water inlet type reverse suction filtration system comprises a filter tank, wherein a central water outlet pipe is arranged in the filter tank, a plurality of filter discs are arranged on the outer wall of the central water outlet pipe side by side, a reverse suction device is arranged on one side of each filter disc, the inlet of the reverse suction device is connected with a suction hose, the two ends of the central water outlet pipe are respectively provided with a water distribution weir and a driving device, one side of the driving device, which is far away from the central water outlet pipe, is provided with a water outlet overflow weir, a perforated pipe is arranged at the bottom of the filter tank, the outer side of the filter tank is provided with two sludge discharge pumps, the inlets of the sludge discharge pumps are connected with a plurality of sludge discharge electric valves through pipelines, one ends of the sludge discharge electric valves, which are far away from the sludge discharge pumps, are provided with sludge discharge pipes, one ends of the sludge discharge pipes, which are far away from the sludge discharge electric valves, penetrate through the filter tank and extend to the perforated pipes, and the water distribution weirs comprise supporting rods, the filter tank is characterized in that a pressing rod is arranged above the supporting rod, two ends of the supporting rod are fixedly welded with baffles, the two baffles are fixedly connected with the filter tank, and a plurality of water distribution ports are formed between the two baffles through a splitter plate.

Preferably, the top of the flow distribution plate is provided with an insertion hole, a positioning block is installed at the center of the bottom end of the flow distribution plate, a positioning blind hole is formed in the center of the positioning block, and an iron block is installed in the positioning blind hole.

Preferably, the bracing piece top is equipped with a plurality of constant head tanks side by side, constant head tank and flow distribution plate one-to-one, install the locating lever in the constant head tank, locating lever and location blind hole phase-match, permanent magnet is installed on the locating lever top, permanent magnet and the mutual actuation of iron plate.

Preferably, the depression bar top alternates and is provided with two threaded sleeves, two threaded sleeve is the symmetry setting, every equal spiro union has the threaded rod in the threaded sleeve, the handle is installed on the top of threaded rod, the bottom and the depression bar top of threaded rod are rotated and are connected.

Preferably, the bottom of the pressure lever is provided with a plurality of inserted bars side by side, and the inserted bars correspond to the jacks one by one and are connected with the jacks in an inserting manner.

Preferably, both ends of the filter tank are respectively provided with a water inlet and a discharge port, and one ends of the water inlet and the discharge port are communicated with the filter tank.

In the technical scheme, the utility model provides the following technical effects and advantages:

1. the filter has good filtering effect, sewage flows in from the water inlet after the water distribution weir is added, the sewage is uniformly dispersed in the tank through the water distribution weir, the water flow of the central water outlet pipe is discharged after passing through the overflow weir, the disturbance of the water flow in the tank is very low, the whole filter disc is submerged in the sewage during filtering, the disturbance of the water flow is low, and the stable flow state is favorable for sewage filtering and sludge sedimentation;

2. the system is more stable in operation, after the sludge discharge pump adopts a non-clogging centrifugal pump, the blockage of the sludge discharge system can be effectively avoided, the operation stability of the system is ensured, the system is limited by the management level of a sewage treatment plant, solid impurities contained in sewage actually entering a filtering system comprise fiber substances, large particle substances and the like besides suspended particles, the water pump is easily blocked, the blockage is effectively avoided due to the improvement of the non-clogging centrifugal pump, the quality of discharged water is good, the impact load is resistant, the instantaneous backwashing surface of a reverse suction sucking disc is only 1% of that of a single disc, the continuous filtering is carried out during backwashing, and the impact load resistance is strong;

3. the cleaning is thorough, no chemical is required to be added, the operation of the filtering equipment can be ensured by the conventional filter cloth structure, backwashing frequency and strength, and the problem of algae breeding is avoided;

4. through with locating piece, constant head tank, locating lever and location blind hole, accomplish the location of flow distribution plate, utilize the cooperation of permanent magnet and iron plate, can stabilize the flow distribution plate, drive the threaded rod through turning handle and rotate for the depression bar drives the inserted bar and inserts the jack, compresses tightly the flow distribution plate through the depression bar simultaneously, thereby has accomplished the installation of flow distribution plate, has realized the equipment of water distribution weir, and the assembling process is simple, makes things convenient for the later stage to change or clear up the flow distribution plate.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of a filter chamber A-A according to the present invention;

FIG. 3 is a sectional view of a filter B-B of the present invention;

FIG. 4 is a schematic view of a water distribution weir of the present invention;

FIG. 5 is a view of the connection of the baffle and the support rod of the present invention;

FIG. 6 is an enlarged view taken at A of FIG. 5 in accordance with the present invention;

fig. 7 is a schematic view of the horizontal arrangement of the splitter plate of the present invention.

Description of reference numerals:

1. a filter chamber; 2. a reverse pumping device; 3. a central water outlet pipe; 4. a filter disc; 5. a mud discharge electric valve; 6. a sludge discharge pipe; 7. a sludge discharge pump; 8. a drive device; 9. a suction hose; 10. a perforated pipe; 11. an effluent overflow weir; 12. a water distribution weir; 13. a water inlet; 14. a baffle plate; 15. a support bar; 16. a flow distribution plate; 17. a pressure lever; 18. a threaded rod; 19. positioning a groove; 20. positioning a rod; 21. a permanent magnet; 22. a handle; 23. positioning blocks; 24. a jack; 25. and (4) inserting the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. And the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with the prior art as the case may be. Furthermore, the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. One or more of the illustrated components may be required or unnecessary, and the relative positions of the illustrated components may be adjusted according to actual needs.

The utility model provides an external water inlet type reverse suction filtration system as shown in figures 1-7, which comprises a filter tank 1, wherein a central water outlet pipe 3 is arranged in the filter tank 1, a plurality of filter discs 4 are arranged on the outer wall of the central water outlet pipe 3 side by side, a reverse suction device 2 is arranged on one side of each filter disc 4, the reverse suction device 2 and a driving device 8 both adopt the prior art, and are not specifically described herein, a suction hose 9 is connected to an inlet of the reverse suction device 2, and a water distribution weir 12 and a driving device 8 are respectively arranged at two ends of the central water outlet pipe 3.

One side that central outlet pipe 3 was kept away from to drive arrangement 8 is equipped with out water overflow weir 11, just perforated pipe 10 is installed at the bottom of the pool in filtering pond 1, the outside in filtering pond 1 is equipped with two mud pumps 7, and mud pump 7 adopts the non-clogging centrifugal pump, there are a plurality of mud discharging motorised valves 5 in the import of mud pump 7 through the pipe connection, mud discharging motorised valve 5 keeps away from the one end of mud pump 7 and installs mud discharging pipe 6, the one end that mud discharging motorised valve 5 was kept away from to mud discharging pipe 6 runs through filtering pond 1 and extends to perforated pipe 10 department.

Mud pipe 6 link up mutually with perforated pipe 10, just water distribution weir 12 includes bracing piece 15, the top of bracing piece 15 is equipped with depression bar 17, the both ends welded fastening of bracing piece 15 has baffle 14, two baffle 14 all with 1 fixed connection in filtering pond, two divide through flow distribution plate 16 between the baffle 14 has a plurality of water distribution ports, and when sewage flowed through water distribution weir 12, can divide water through flow distribution plate 16, sewage was evenly flowed into filtering pond 1 by the water distribution port this moment to make sewage ability homodisperse in filtering pond 1, it is a plurality of the both ends in filtering pond 1 are equipped with water inlet 13 and discharge port respectively, the one end of water inlet 13 and discharge port all link up mutually with filtering pond 1, and sewage flows into filtering pond 1 through water inlet 13, and the water after the processing is discharged by the discharge port.

Further, in above-mentioned technical scheme, 16 tops of flow distribution plate are equipped with jack 24, 16 bottom center department of flow distribution plate installs locating piece 23, the center department of locating piece 23 is equipped with the location blind hole, install the iron plate in the location blind hole, the bracing piece 15 top is equipped with a plurality of constant head tanks 19 side by side, constant head tank 19 and flow distribution plate 16 one-to-one, install locating lever 20 in the constant head tank 19, locating lever 20 and location blind hole phase-match, permanent magnet 21 is installed on the 20 top of locating lever, permanent magnet 21 and the mutual actuation of iron plate insert the constant head tank 19 with locating piece 23 in, locating lever 20 inserts the location blind hole this moment, accomplishes flow distribution plate 16's location, and the location is quick accurate, can improve the efficiency of flow distribution plate 16 installation, and utilizes the cooperation of permanent magnet 21 and iron plate, can stabilize flow distribution plate 16.

Further, in above-mentioned technical scheme, depression bar 17 top interlude is provided with two threaded sleeves, two threaded sleeve is the symmetry setting, every equal spiro union has threaded rod 18 in the threaded sleeve, handle 22 is installed on the top of threaded rod 18, the bottom and the depression bar 17 top of threaded rod 18 rotate to be connected, the bottom of depression bar 17 is equipped with a plurality of inserted bars 25 side by side, inserted bar 25 and jack 24 one-to-one and with jack 24 plug-in connection, drive threaded rod 18 through turning handle 22 and rotate, utilize threaded rod 18 and threaded sleeve's meshing transmission to make depression bar 17 move down for inserted bar 25 inserts jack 24, compresses tightly flow distribution plate 16 through depression bar 17 simultaneously, has accomplished flow distribution plate 16's installation, has realized the equipment of water distribution weir 12, and the assembling process is simple, makes things convenient for later stage change or clearance flow distribution plate 16.

This practical theory of operation:

referring to the attached drawings 1-7 of the specification, in a filtering state, after a water distribution weir 12 is added, sewage flows in from a water inlet 13 and is uniformly dispersed in a tank through the water distribution weir 12, water flow of a central water outlet pipe 3 is discharged after passing through a water outlet overflow weir 11, the disturbance of the water flow in the tank is very low, the whole filter disc 4 is submerged in the sewage during filtering, the disturbance of the water flow is low, the stable flow state is favorable for sewage filtering and sludge sedimentation, suspended impurities are intercepted by fiber filter cloth on the surface of the filter disc 4, part of the suspended impurities are stored in a filter layer of 2-3mm on the surface of the fiber filter cloth and part of the suspended impurities are settled to the bottom of the tank, the filter disc 4 uniformly and slowly rotates under the driving of a driving device 8 during filtering, and each fan-shaped disc piece of the filter disc 4 can be more fully and uniformly utilized.

In a backwashing state, a reverse suction device 2 fixedly arranged on the inner wall of the filter tank 1 sucks the surface of the filter cloth through negative pressure to suck away sludge particles accumulated on the filter cloth, and simultaneously water in the filter turntable is sucked from inside to outside to clean the filter cloth, sludge generated by the system is discharged through a backwashing suction hose 9, and sludge accumulated at the bottom of the filter tank is discharged through a perforated pipe 10 arranged at the bottom;

referring to the attached drawings 1-7 of the specification, a positioning block 23 is inserted into a positioning groove 19, a positioning rod 20 is inserted into a positioning blind hole at the moment, the positioning of the splitter plate 16 is completed through the matching of a permanent magnet 21 and an iron block, then a handle 22 is rotated to drive a threaded rod 18 to rotate, a pressing rod 17 is moved downwards through the meshing transmission of the threaded rod 18 and a threaded sleeve, an inserting rod 25 is inserted into a jack 24, the splitter plate 16 is pressed through the pressing rod 17, the installation of the splitter plate 16 is completed, the assembly of the water distribution weir 12 is realized, the assembly process is simple, and the splitter plate 16 is convenient to replace or clean at the later stage.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof, and any modification, equivalent replacement, or improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims (6)

1. The utility model provides an outer anti suction filtration system of formula of intaking, includes filtering pond (1), its characterized in that: the filter is characterized in that a central water outlet pipe (3) is arranged in the filter pool (1), a plurality of filter discs (4) are arranged on the outer wall of the central water outlet pipe (3) side by side, one side of each filter disc (4) is provided with a reverse suction device (2), the inlet of the reverse suction device (2) is connected with a suction hose (9), the two ends of the central water outlet pipe (3) are respectively provided with a water distribution weir (12) and a driving device (8), one side of the driving device (8) far away from the central water outlet pipe (3) is provided with a water outlet overflow weir (11), a perforated pipe (10) is arranged at the bottom of the filter pool (1), the outer side of the filter pool (1) is provided with two sludge discharge pumps (7), the inlet of each sludge discharge pump (7) is connected with a plurality of sludge discharge (5) through a pipeline, one end of each sludge discharge electric valve (5) far away from the sludge discharge pump (7) is provided with a sludge discharge pipe (6), the one end that row's mud motorised valve (5) was kept away from in mud pipe (6) runs through filtering pond (1) and extends to perforated pipe (10) department, mud pipe (6) link up mutually with perforated pipe (10), just water distribution weir (12) are including bracing piece (15), the top of bracing piece (15) is equipped with depression bar (17), the both ends welded fastening of bracing piece (15) has baffle (14), two baffle (14) all with filtering pond (1) fixed connection, two divide through flow distribution plate (16) between baffle (14) and have a plurality of water distribution mouths.

2. An external water inlet type back suction filtration system according to claim 1, wherein: the improved iron core splitter is characterized in that a jack (24) is arranged at the top of the splitter plate (16), a positioning block (23) is installed at the center of the bottom end of the splitter plate (16), a positioning blind hole is formed in the center of the positioning block (23), and an iron block is installed in the positioning blind hole.

3. An external water inlet type back suction filtration system according to claim 2, wherein: the utility model discloses a permanent magnet, including bracing piece (15), flow distribution plate (16), locating lever (20) and location blind hole phase-match, permanent magnet (21) are installed on locating lever (20) top, permanent magnet (21) and the mutual actuation of iron plate to the bracing piece (15) top is equipped with a plurality of constant head tanks (19) side by side, constant head tank (19) and flow distribution plate (16) one-to-one, install locating lever (20) in constant head tank (19), locating lever (20) and location blind hole phase-match, permanent magnet (21) are installed on locating lever (20) top.

4. An external water inlet type back suction filtration system according to claim 3, wherein: the utility model discloses a pressure bar (17) is provided with two threaded sleeve, two in the interlude of depression bar (17) top the threaded sleeve is the symmetry and sets up, every equal spiro union has threaded rod (18) in the threaded sleeve, handle (22) are installed on the top of threaded rod (18), the bottom and the depression bar (17) top of threaded rod (18) are rotated and are connected.

5. An external water inlet type back suction filtration system according to claim 4, wherein: the bottom of depression bar (17) is equipped with a plurality of inserted bars (25) side by side, inserted bar (25) and jack (24) one-to-one and with jack (24) plug connection.

6. An external water inlet type back suction filtration system according to claim 1, wherein: the two ends of the filter tank (1) are respectively provided with a water inlet (13) and a discharge port, and one ends of the water inlet (13) and the discharge port are communicated with the filter tank (1).

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