CN214653892U - Filter backwashing equipment - Google Patents

Abstract

The utility model belongs to the technical field of sewage treatment and specifically relates to a filtering pond backwash equipment, including backwash equipment main part and translation mechanism, backwash equipment main part includes frame, fan, gas circuit auto-change over device and lower extreme open-ended washing seal cover, the fan sets up in the frame, the frame sets up in translation mechanism, the fan passes through gas circuit auto-change over device intercommunication with washing seal cover, the below of frame is connected to through elevating system and washes the seal cover, backwash equipment main part still is equipped with the water pump, the water pump makes the outside water pump of washing the seal cover go into and washes the seal cover intracavity. The utility model provides a movable, wash effectual, overhaul easy maintenance swift backwash equipment. The main body of the backwashing equipment is arranged on the translation mechanism, moves to the position right above the filtering component of the filter tank through the plane mechanism, and drives the lifting mechanism to cover the filtering component with the flushing seal cover for backwashing, thereby realizing good flushing effect.

Description

Filter backwashing equipment

Technical Field

The utility model belongs to the technical field of sewage treatment and specifically relates to a filtering pond backwash equipment.

Background

Backwashing is one of the important functions of a filtration tank. In the filtering process of the filter, suspended matters in water are adsorbed by the surface of a filter material and are continuously accumulated in a filter material layer, and because the pores of the filter layer are gradually blocked by dirt, the loss of a filtering head is continuously increased. Because head loss increases during the filtration, rivers are to the shearing force grow of the filth of adsorbing on the filter material surface, and some of them granules move down to the lower floor filter material in the impact of rivers, can make the content of the suspended solid in aquatic constantly rise eventually, and quality of water worsens, need wash the filter material when to a certain extent, and the back flush can resume the pollutant carrying capacity on filter material layer.

The common backwashing method of the filter tank is that a water and air distribution system is arranged at the bottom of a filter layer, compressed air is pressed into the filter tank, impurities attached to the surface of a filter material are removed and suspended in water by utilizing the vibration and scrubbing action generated by rising air bubbles, and then the impurities are discharged out of the filter tank by backwashing with water.

However, the backwashing method has the following problems:

1. sand running and leaking. At present, quartz sand is adopted as a filter layer in common filter tanks. The water distribution and air distribution pipe is arranged at the bottom of the filter layer to wash the filter layer, and if the washing strength is too high or the grading of the filter material is not proper, a large amount of fine filter material can be washed away by backwashing. If the washing water is unevenly distributed, the padding layer can be translated, the uneven water distribution is further promoted, finally, the partial padding layer is washed away and emptied, and the filter material is leaked into the clean water tank through the water distribution systems at the parts during filtering. The sand leakage and the sand leakage of the filtering layer can cause the thickness of the filtering layer to be reduced, so that the filtering effect is poor;

2. the water distribution and air distribution pipes of the filter are deeply buried at the bottom of the filter layer, and once the blockage situation occurs, the overhauling difficulty is very high. Common filtering pond filtering layer thickness is more than 1.8 meters, and structurally, the filtering layer bottom that water distribution gas distribution pipe set up buries deeply under the filtering layer promptly, in case the water distribution gas distribution pipe blocking condition appears, need the shut down and excavate the filtering layer and restore, and the maintenance degree of difficulty is very big, brings very big influence to the operation of sewage treatment facility.

Therefore, the development of the backwashing equipment which has good backwashing effect and is easy to maintain is of great significance.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the filter backwashing equipment is provided.

The utility model provides a filtering pond backwash equipment, includes backwash equipment main part and translation mechanism, backwash equipment main part includes frame, fan, gas circuit auto-change over device and lower extreme open-ended washes the sealed cowling, the fan sets up in the frame, the frame sets up on translation mechanism, the fan passes through gas circuit auto-change over device intercommunication with washing the sealed cowling, the below of frame is connected to washing the sealed cowling through elevating system, backwash equipment main part still is equipped with the water pump, the water pump makes the outside water pump of washing the sealed cowling go into and washes the sealed cowling intracavity.

Preferably, the water pump sets up on the frame, the one end intercommunication of water pump has first water pipe, the other end intercommunication of water pump has the second water pipe, the second water pipe runs through and washes the sealed cowling and communicate to the intracavity that washes the sealed cowling.

Preferably, the water pump is the immersible pump, the immersible pump sets up in washing the sealed cowling intracavity, the one end intercommunication of immersible pump has the third water pipe, the third water pipe runs through and washes the sealed cowling and communicates to the outside of washing the sealed cowling, the other end and the sealed cowling intercommunication of washing of immersible pump.

Preferably, the gas circuit switching device comprises a tee joint, a swing assembly and a linear reciprocating motion device, one end of the swing assembly extends into an inner cavity of the tee joint, a movable baffle is installed in the tee joint, the swing assembly is fixedly connected with the baffle, and the linear reciprocating motion device drives the swing assembly to enable the baffle to swing in the tee joint.

Preferably, the linear reciprocating device is an electric cylinder.

Preferably, the tee joint comprises an air inlet, a first air outlet and a second air outlet, the outlet of the fan is communicated with the air inlet through a first telescopic pipe, and the first air outlet is communicated to the flushing sealing cover through a second telescopic pipe.

Preferably, the swing assembly comprises a telescopic rod, a rotating rod and a swing rod, the telescopic rod is hinged to the linear reciprocating motion device, the swing rod is fixedly connected with the rotating rod in a mutually perpendicular mode, and the swing rod is fixedly connected with the baffle.

Preferably, the translation mechanism comprises a running rail, a first moving vehicle frame capable of sliding on the running rail, and a second moving vehicle frame capable of sliding on the first moving vehicle frame, the first moving vehicle frame and the second moving vehicle frame are arranged perpendicular to each other, and the frame is mounted on the second moving vehicle frame.

Preferably, the travelling crane rail is provided with a first rack, the first moving frame comprises a first moving frame main body, a first support fixed with the first moving frame main body, first driven wheel devices arranged at two ends of the first support, a first driving device linked with the first driven wheel devices, and a cross beam fixed above the first support, the first driven wheel devices are meshed with the first rack, and the cross beam is provided with a second rack; the second movable frame comprises a second movable frame main body, a second support fixed with the second movable frame main body, second driven wheel devices arranged at two ends of the second support, and a second driving device linked with the second driven wheel devices, and the second driven wheel devices are meshed with the second rack.

Preferably, a sealing rubber strip is arranged at the opening of the flushing sealing cover.

Advantageous effects

The filter backwashing equipment has the following effects:

1. the backwashing equipment is arranged above the surface of the filter pool, and brings great convenience to the installation, maintenance and repair of the equipment;

2. the fan and the air path switching device are adopted to wash the filtering assembly, so that suspended matters remained on the filtering assembly are effectively washed away, and the phenomena of sand leakage or sand leakage can be avoided;

3. the washing seal cover covers a certain single filtering component during backwashing, the washing of the single filtering component does not influence the normal filtering of other filtering components of the filtering pool, the water consumption is reduced, the treatment capacity and the treatment efficiency of the filtering pool are greatly improved, and the filtering pool is more energy-saving and environment-friendly.

Drawings

FIG. 1 is a schematic structural diagram of a main body of a backwashing device in embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a main body of a backwashing device in embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of an air path switching device in an embodiment of the present invention;

fig. 4 is a front view of the first moving frame in the embodiment of the present invention;

fig. 5 is a plan view of the first moving frame in the embodiment of the present invention;

FIG. 6 is an enlarged partial view taken at A in FIG. 4;

fig. 7 is a front view of the second moving frame in the embodiment of the present invention;

fig. 8 is a plan view of the second moving frame in the embodiment of the present invention;

fig. 9 is a schematic view of a first operating state of the embodiment of the present invention;

fig. 10 is a schematic view of a second operating state of the embodiment of the present invention;

the figures are labeled as follows:

1-backwashing equipment main body, 11-frame, 2-fan, 3-gas circuit switching device, 31-tee joint, 311-gas inlet, 312-first gas outlet, 313-second gas outlet, 32-swinging component, 321-telescopic rod, 322-rotating rod, 323-swinging rod, 324-baffle, 33-linear reciprocating motion device, 4-flushing sealing cover, 41-sealing rubber strip, 5-lifting mechanism, 6-water pump, 61-first water pipe, 62-second water pipe, 63-third water pipe, 7-first telescopic pipe, 8-second telescopic pipe, 9-translation mechanism, 91-driving track, 92-first moving frame, 921-first moving frame main body, 922-first driving device, 923-a first support, 924-a first driven wheel device, 925-a cross beam, 926-a second rack, 93-a second moving frame, 931-a second moving frame body, 932-a second driving device, 933-a second support, 934-a second driven wheel device, 10-a filter tank and 101-a filter assembly.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The filter backwashing equipment shown in fig. 1 and 3 to 7 comprises a backwashing equipment main body 1 and a translation mechanism 9, wherein the backwashing equipment main body 1 comprises a frame 11, a fan 2, an air channel switching device 3 and a flushing seal cover 4 with an opening at the lower end, the fan 2 is arranged in the frame 11, the frame 11 is arranged on the translation mechanism 9, the fan 2 is communicated with the flushing seal cover 4 through the air channel switching device 3, the lower part of the frame 11 is connected to the flushing seal cover 4 through a lifting mechanism 5, and the backwashing equipment main body 1 is further provided with a water pump 6 which enables water outside the flushing seal cover 4 to be pumped into a cavity of the flushing seal cover 4.

The water pump 6 is arranged on the frame 11, one end of the water pump 6 is communicated with a first water pipe 61, the other end of the water pump 6 is communicated with a second water pipe 62, and the second water pipe 62 penetrates through the flushing seal cover 4 and is communicated to the cavity of the flushing seal cover 4.

In the embodiment, the water pump 6 can be any device for conveying liquid, such as a centrifugal pump, an axial flow pump, a vane pump and the like, the pump can normally work only when being installed on the ground or in a dry environment, the water pump 6 is arranged on the frame 11, and as the whole backwashing equipment main body 7 is arranged above the filter tank 10 in the working process, electrical elements of the water pump 6 cannot touch the liquid, the requirement on the waterproof grade of the water pump 6 is low, and the cost is reduced. When the water pump 6 is installed on the frame 11 side, the first water pipe 61 is a water pumping pipe, the second water pipe 62 is a water outlet pipe, a water inlet of the water pump 6 is communicated to the first water pipe 61, and a water outlet of the water pump 6 is communicated to the second water pipe 62. The washing sealing cover 4 is a semi-closed structure with an opening at the lower end, a closed space is formed after the washing sealing cover and the 4 filtering components 101 are tightly pressed, clean water on the upper layer of the filter chamber 10 enters the pump body through a water pumping pipe by the water pump 6, and the clean water is discharged to the inside of the washing sealing cover 4 through a water outlet pipe after being pressurized and used for washing the filtering components 101.

The gas circuit switching device 3 comprises a tee joint 31, a swing component 32 and a linear reciprocating motion device 33, one end of the swing component 32 extends into an inner cavity of the tee joint 31, a movable baffle 324 is installed in the tee joint 31, the swing component 32 is fixedly connected with the baffle 324, and the linear reciprocating motion device 33 drives the swing component 32 to enable the baffle 324 to swing in the tee joint 31.

The linear reciprocating device 33 is an electric cylinder. The linear reciprocating device 33 may be any device for driving the swing assembly 32 to move horizontally, such as a cam mechanism, a slider-crank mechanism, etc. In the present embodiment, the linear reciprocating device 33 is a widely used electric cylinder. The electric cylinder is a modularized product which integrally designs the servo motor and the lead screw, and converts the rotary motion of the servo motor into linear motion, so that high-precision linear motion can be realized.

The tee joint 31 comprises an air inlet 311, a first air outlet 312 and a second air outlet 313, the outlet of the fan 2 is communicated with the air inlet 311 through a first telescopic pipe 7, and the first air outlet 312 is communicated to the flushing seal cover 4 through a second telescopic pipe 8.

After the flushing seal cover 4 is driven by the lifting mechanism 5 to descend and dip into the filter chamber 10, when the air path switching device 3 is switched to a state that the air inlet 311 is communicated with the first air outlet 312, the fan 2 is started, air exhausted by the fan 2 enters the air inlet 311 of the air path switching device 3 through the first telescopic pipe 7 and then enters the flushing seal cover 4 along the second telescopic pipe 8, the air pressure in the cover rises, and the water level descends; when the air path switching device 3 is switched to the state that the first air outlet 312 is communicated with the second air outlet 313, the outside air is communicated with the flushing sealing cover 4, the air pressure in the cover is reduced, the water level is raised, the air in the cover escapes from the outside, and the washing of the up-and-down fluctuating water flow of the filtering component 101 is realized. After the washing is finished, the water pump 6 works to pump the filtered clean water outside the cover into the cover to wash the filtering component 101 in the cover with clean water. After the washing is finished, the lifting mechanism 5 lifts the washing sealing cover 4 away from the water surface, and the filtering assembly 101 recovers to filter the water normally.

The swing assembly 32 comprises a telescopic rod 321, a rotating rod 322 and a swing rod 323, the telescopic rod 321 is hinged with the linear reciprocating motion device 33, the swing rod 323 is vertically and fixedly connected with the rotating rod 322, and the swing rod 323 is fixedly connected with the baffle 324.

When the air path switching device 3 works, the output rod of the electric cylinder makes a linear reciprocating motion to drive the expansion rod 321 to swing back and forth, the expansion rod 321 twists and transmits to the swing rod 323 through the rotating rod 322, and thus the baffle 324 connected with the swing rod 323 swings back and forth around the rotating rod 322 in the Y-shaped tee 31. When the output rod of the electric cylinder moves to the maximum stroke and the baffle 324 blocks the second air outlet 313, the air flows out from the first air outlet 312; when the output rod of the electric cylinder moves to the minimum stroke, the baffle 324 blocks the air inlet 311, and at the moment, the first air outlet 312 is communicated with the second air outlet 313, so that the air passage is rapidly and continuously switched in turn in the Y-shaped tee joint 31.

The translation mechanism 9 includes a running rail 91, a first moving vehicle frame 92 capable of sliding on the running rail 91, and a second moving vehicle frame 93 capable of sliding on the first moving vehicle frame 92, the first moving vehicle frame 92 and the second moving vehicle frame 93 are arranged perpendicular to each other, and the frame 11 is mounted on the second moving vehicle frame 93.

The traveling rail 91 is provided with a first rack, the first moving frame 92 includes a first moving frame body 921, a first support 923 fixed to the first moving frame body 921, a first driven wheel device 924 provided at both ends of the first support 923, a first driving device 922 linked to the first driven wheel device 924, and a cross beam 925 fixed above the first support 923, the first driven wheel device 924 meshes with the first rack, the cross beam 925 is provided with a second rack 926, the second moving frame 93 includes a second moving frame body 931, a second support 933 fixed to the second moving frame body 931, a second driven wheel device 934 provided at both ends of the second support 933, and a second driving device 932 linked to the second driven wheel device 934, and the second driven wheel device 934 meshes with the second rack 926.

The first moving frame 92 and the second moving frame 93 are both frame type structures, and rectangular vacant positions are reserved after the first moving frame and the second moving frame are assembled so as to facilitate the vertical movement of the flushing sealing cover. The first driven wheel device 924 and the second driven wheel device 934 are gears matched with the first rack and the second rack 926 respectively, the first driving device 922 and the second driving device 932 are both motor-driven screw mechanisms, and the motors drive screws to rotate so as to drive the first driven wheel device 924 and the second driven wheel device 934 to rotate, so that the second moving frame 93 moves left and right on the first moving frame 92, and the first moving frame 92 moves back and forth on the driving track 91. The frame 11 with the flushing seal cover 4 mounted thereon is accurately moved to a position above a designated filter unit 101 of the filter chamber 10 by controlling the motors of the first driving device 922 and the second driving device 932 to rotate in the forward or reverse directions.

And a sealing rubber strip 41 is arranged on the lower edge of the flushing sealing cover 4. The flushing seal cover 4 is moved above the filter assembly 101 by the lifting mechanism 5 and is pressed against the edge of the filter assembly 101, so that a gap between the two is eliminated, and air leakage or water leakage is prevented.

The specific working principle is as follows:

a filter assembly 101 is arranged in the filter tank 10, the overall dimension of the filter assembly 101 is matched with that of the flushing seal cover 4, and a reticular filter material and a suspension filler are arranged in the filter assembly 101. The mesh filter material is a common filter material, has the characteristic of high porosity and can effectively intercept suspended matters. The suspension filler can be porous spherical suspension filler, provides an excellent carrier for microorganisms, and is beneficial to the decomposition of pollutants by the microorganisms. As the filter chamber 10 continues to feed, filter and discharge water, the suspended matter in the wastewater captured in the modular filter assembly 101 increases and requires backwashing.

During backwashing, under the control of an automatic control program, the first moving frame 92 moves back and forth along the travelling rail 91 arranged above the filter tank 10, the second moving frame 93 moves left and right above the first moving frame 92 to drive the backwashing equipment main body 1 to move right above the filter assemblies 101, and the lifting mechanism 5 is driven to cover the filter assemblies 101 with the flushing seal covers 4 and complete the flushing of all the filter assemblies 101 of the whole tank one by one. The water level in the flushing seal cover 4 is regularly and alternately descended and ascended through the backwashing mode, and the water level in the filtering component 101 is pushed to alternately descend and ascend in a shaking mode, so that suspended matters accumulated in the filtering component 101 are washed clean. Compare with conventional gas rush, water-washed, this kind of washing mode rivers are more even to filtering component 101's impact force distribution, more wash away the suspended solid that remains in filtering component 101 effectively, and through washing water pump 6 in the sealed cowling 4 at last, the clear water of taking out in to the cover from the clear water outside the cover realizes washing to filtering component 101 realization in the cover, further erodees the suspended solid in the clean filtering component 101, realizes good washing effect.

Example 2

As shown in fig. 2, the difference from embodiment 1 is that the water pump 6 is a submersible pump, the submersible pump is disposed in the cavity of the flushing seal cover 4, one end of the submersible pump is communicated with a third water pipe 63, the third water pipe 63 penetrates through the flushing seal cover 4 and is communicated to the outside of the flushing seal cover 4, and the other end of the submersible pump is communicated with the flushing seal cover 4. When the immersible pump is installed in washing sealed cowling 4, third water pipe 63 is the drinking-water pipe, and the water inlet of immersible pump communicates to third water pipe 63, the delivery port of immersible pump with wash sealed cowling 4 intercommunication. The immersible pump can normally work under water, therefore the immersible pump can install and wash 4 intracavity of sealed cowling, has reduced the overall dimension of whole equipment, and the water pipe no longer receives the restriction of elevating system 5 to follow the motion, has shortened the length of water pipe, makes overall structure more compact.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a filtering pond backwash equipment, its characterized in that, includes backwash equipment main part (1) and translation mechanism (9), backwash equipment main part (1) includes frame (11), fan (2), gas circuit auto-change over device (3) and lower extreme open-ended washes sealed cowling (4), fan (2) set up in frame (11), frame (11) set up on translation mechanism (9), fan (2) and wash sealed cowling (4) and pass through gas circuit auto-change over device (3) intercommunication, the below of frame (11) is connected to and washes sealed cowling (4) through elevating system (5), backwash equipment main part (1) still is equipped with water pump (6), the water pump makes the outside water pump of washing sealed cowling (4) go into and washes sealed cowling (4) intracavity.

2. A filter chamber backwashing apparatus according to claim 1, wherein the water pump (6) is arranged on the frame (11), one end of the water pump (6) is communicated with a first water pipe (61), the other end of the water pump (6) is communicated with a second water pipe (62), and the second water pipe (62) penetrates through the flushing seal cover (4) and is communicated with the cavity of the flushing seal cover (4).

3. A filter backwashing device according to claim 1, wherein the water pump (6) is a submersible pump, the submersible pump is arranged in a cavity of the flushing seal cover (4), one end of the submersible pump is communicated with a third water pipe (63), the third water pipe (63) penetrates through the flushing seal cover (4) and is communicated to the outside of the flushing seal cover (4), and the other end of the submersible pump is communicated with the flushing seal cover (4).

4. A filter backwashing apparatus according to claim 1, wherein the air channel switching device (3) comprises a tee joint (31), a swinging assembly (32) and a linear reciprocating device (33), one end of the swinging assembly (32) extends into an inner cavity of the tee joint (31), a movable baffle (324) is installed in the tee joint (31), the swinging assembly (32) is fixedly connected with the baffle (324), and the linear reciprocating device (33) drives the swinging assembly (32) to swing the baffle (324) in the tee joint (31).

5. A filter backwashing apparatus according to claim 4, wherein the linear reciprocating device (33) is an electric cylinder.

6. A filter backwashing apparatus according to claim 4, wherein the tee joint (31) comprises an air inlet (311), a first air outlet (312) and a second air outlet (313), the outlet of the fan (2) is communicated with the air inlet (311) through a first telescopic pipe (7), and the first air outlet (312) is communicated to the flushing seal housing (4) through a second telescopic pipe (8).

7. A filter chamber backwashing apparatus according to claim 4, wherein the swing assembly (32) comprises a telescopic rod (321), a rotating rod (322) and a swing rod (323), the telescopic rod (321) is hinged with the linear reciprocating device (33), the swing rod (323) and the rotating rod (322) are vertically and fixedly connected with each other, and the swing rod (323) and the baffle plate (324) are fixedly connected.

8. A filter backwash apparatus as claimed in claim 1 wherein the translation mechanism (9) comprises a running rail (91), a first travelling carriage (92) slidable on the running rail (91) and a second travelling carriage (93) slidable on the first travelling carriage (92), the first travelling carriage (92) and the second travelling carriage (93) being arranged perpendicular to each other, the frame (11) being mounted on the second travelling carriage (93).

9. A filter backwashing apparatus according to claim 8, wherein the running rail (91) is provided with a first rack, the first moving frame (92) comprises a first moving frame body (921), a first support (923) fixed to the first moving frame body (921), first driven wheel devices (924) provided at both ends of the first support (923), a first driving device (922) linked with the first driven wheel devices (924), and a cross beam (925) fixed above the first support (923), the first driven wheel devices (924) are engaged with the first rack, and the cross beam (925) is provided with a second rack (926); the second moving frame (93) comprises a second moving frame body (931), a second support (933) fixed to the second moving frame body (931), second driven wheel devices (934) arranged at two ends of the second support (933), and a second driving device (932) linked with the second driven wheel devices (934), and the second driven wheel devices (934) are meshed with a second rack (926).

10. A filter backwashing apparatus according to claim 1, wherein a sealing rubber strip (41) is provided at an opening of the flushing seal cover (4).

Images