Filter tank structure with automatic backwashing function

Abstract

The utility model relates to the technical field of filter tanks, and discloses a filter tank structure with an automatic backwashing function, which comprises a tank body, two groups of fillers and a liquid level meter are arranged in the tank body, a pollution discharge mechanism is mounted close to the bottom end in the tank body, and a cleaning mechanism is mounted close to the top end in the tank body. The sewage discharging mechanism comprises a spraying frame and a material collecting pipe, the spraying frame is fixedly installed at the position, close to the bottom end, in the tank body, a water inlet pipe is installed at the position, close to the top end, penetrating through the front portion of the tank body, a backwashing pipe is installed at the front end of the spraying frame in a connected mode, a water discharging pipe is installed at the position, close to the bottom end, penetrating through the rear portion of the tank body, and the material collecting pipe is fixedly installed between the two sets of filler. Through a material collecting pipe and a screw rod, automatic backwashing inside the tank body is realized, and sludge generated by washing can be automatically discharged, so that the labor capacity of post personnel is reduced; through the overflow groove and the scraper, cleaning of the interior of the overflow groove is facilitated, and the influence of impurity accumulation on wastewater discharge is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter tank technical field, concretely is a filter tank structure with automatic backwash function. BACKGROUND

[0002] The filter tank is important equipment for water treatment, and its main function is to purify water by physically or biologically removing suspended solids, particulate matter and certain dissolved substances in water. After long-term use, more dirt and clogging substances accumulate in the filler, which is cleaned by backwashing to restore the filtration performance of the filter tank.

[0003] The utility model discloses a filter tank's backflush device discloses a filter tank's backflush device, including filter tank body and movable plate, the inside of filter tank body is provided with filter material layer and filter plate, the opposite inner wall of filter tank body is fixedly connected with branch pipe.

[0004] The above-mentioned backflush device has the advantages of facilitating the cleaning of the surface of the filter plate by the brush, improving the cleaning effect of the device, but after backwashing, dirt is easy to enter the filler again, and the dirt floating into the overflow tank is easy to accumulate and cause blockage, which is not convenient for regular cleaning. UTILITY MODEL CONTENTS

[0005] The utility model discloses a filter tank structure with automatic backwash function to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A filter tank structure with automatic backwash function, comprising a tank body, the inside of the tank body is provided with two groups of fillers and a liquid level meter, the inside of the tank body is installed with a sewage discharge mechanism near the bottom end, the inside of the tank body is installed with a cleaning mechanism near the top end, the sewage discharge mechanism comprises a spray frame and a material collecting pipe, the spray frame is fixedly installed inside the tank body near the bottom end, a water inlet pipe is installed through the front part of the tank body near the top end, a backwash pipe is connected and installed at the front end of the spray frame, a drain pipe is installed through the rear part of the tank body near the bottom end, the material collecting pipe is fixedly installed between the two groups of fillers, a screw rod is movably installed inside the material collecting pipe, a first motor is installed at the front end of the screw rod, and a sewage discharge pipe is installed at the rear end of the material collecting pipe.

[0008] Preferably, the height of the outer side of the filler is higher than that of the inner side, and the two groups of fillers are symmetrically arranged.

[0009] Preferably, the water inlet of the water inlet pipe, the drain pipe, the backwash pipe and the sewage discharge pipe is provided with a pneumatic valve.

[0010] Preferably, the top of the spray frame is provided with a plurality of spray heads, and the spray frame is in communication with the interior of the backwashing pipe.

[0011] Preferably, the top of the collecting pipe is in an open form, and the screw rod is fixedly connected with the first motor.

[0012] Preferably, the cleaning mechanism comprises an overflow tank, the overflow tank is installed in the inner wall of the top end of the pool body, a waste water pipe is installed at the rear end of the overflow tank, the same pneumatic valve is installed at the water inlet of the waste water pipe, a screw rod is movably installed in the interior of the overflow tank, a scraper is movably installed on the exterior of the screw rod, a sewage tank is installed at the front end of the overflow tank, and a second motor is installed at the front end of the screw rod.

[0013] Preferably, the bottom of the sewage tank is threadedly connected and sealed by a sealing cover, and the top of the overflow tank is lower than the top end of the pool body.

[0014] Preferably, the scraper is threadedly connected with the screw rod, and the scraper is slidably arranged in the overflow tank.

[0015] Compared with the prior art, the filter pool structure has the following beneficial effects:

[0016] 1) The filter pool structure has the pollution discharge mechanism, the washed sludge enters the collecting pipe, the sludge is transported to the pollution discharge pipe by the screw rod, the opening and closing of each pneumatic valve are collected by the liquid level meter, the automatic backwashing of the interior of the pool body is realized, the washed sludge can be automatically discharged, and the labor of the post personnel is reduced.

[0017] 2) The filter pool structure has the cleaning mechanism, the scraper is slidably driven by the screw rod, the impurities in the overflow tank are scraped by the scraper, the interior of the overflow tank is cleaned, and the accumulation of the impurities is reduced to affect the discharge of the waste water. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the filter pool structure with the automatic backwashing function according to an embodiment of the utility model;

[0019] Figure 2 It is an internal structure schematic view of the pollution discharge mechanism in the embodiment of the utility model;

[0020] Figure 3 It is a structure schematic view of the cleaning mechanism in the embodiment of the utility model;

[0021] Figure 4 It is an internal front view of the whole in the embodiment of the utility model.

[0022] In the figure: 1, pool body; 2, filler; 3, liquid level meter; 4, pollution mechanism; 5, cleaning mechanism; 6, spray frame; 7, water inlet pipe; 8, backwashing pipe; 9, drain pipe; 10, material collecting pipe; 11, screw rod; 12, first motor; 13, pollution discharge pipe; 14, overflow tank; 15, waste water pipe; 16, screw rod; 17, scraper; 18, pollution discharge tank; 19, second motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment one

[0025] In combination Figures 1-4 A filter tank structure with automatic backwashing function, comprising a pool body 1, two groups of fillers 2 and a liquid level meter 3 are arranged in the pool body 1, a pollution mechanism 4 is installed at the bottom end in the pool body 1, and a cleaning mechanism 5 is installed at the top end in the pool body 1.

[0026] In combination Figure 2 And Figure 4 Further, the pollution mechanism 4 comprises a spray frame 6 and a material collecting pipe 10, the spray frame 6 is fixedly installed at the bottom end in the pool body 1, a water inlet pipe 7 is installed at the top end in the front part of the pool body 1, a backwashing pipe 8 is connected and installed at the front end of the spray frame 6, a drain pipe 9 is installed at the bottom end in the rear part of the pool body 1, the material collecting pipe 10 is fixedly installed between the two groups of fillers 2, a screw rod 11 is movably installed in the material collecting pipe 10, a first motor 12 is installed at the front end of the screw rod 11, a pollution discharge pipe 13 is installed at the rear end of the material collecting pipe 10, the liquid level meter 3 is interlocked with each pneumatic valve, the upper limit of the liquid level to be controlled is input in the PLC system, when the liquid level meter 3 collects the liquid level of the pool body 1 to the upper limit, the PLC system automatically triggers the opening and closing state of the pneumatic valve.

[0027] The height of the outer side of the filler 2 is higher than that of the inner side, the two groups of fillers 2 are symmetrically arranged, and the sewage is filtered through the fillers 2.

[0028] The water inlet of the water inlet pipe 7, the drain pipe 9, the backwashing pipe 8 and the pollution discharge pipe 13 is provided with a pneumatic valve, each pneumatic valve is connected with the PLC system, and the PLC system is used for triggering the opening and closing state of the pneumatic valve.

[0029] A plurality of spray heads are arranged at the top of the spray frame 6, the spray frame 6 and the inside of the backwashing pipe 8 are communicated with each other, the backwashing pipe 8 is connected with a high-pressure water pump, and the fillers 2 are backwashed through the spray heads of the spray frame 6.

[0030] Specifically, the fine particles and sludge in the filler 2 are repeatedly washed to the collecting pipe 10 by backwashing of the filler 2 by the spray head in the spray frame 6, and the sludge is transported and discharged by the screw rod 11.

[0031] Embodiment two

[0032] Referring to Figure 3 and Figure 4 and based on embodiment one, it is further obtained that the top of the collecting pipe 10 is open, and the screw rod 11 is fixedly connected with the first motor 12.

[0033] The cleaning mechanism 5 comprises an overflow tank 14, the overflow tank 14 is installed in the top inner wall of the pool body 1, the rear end of the overflow tank 14 is provided with a waste water pipe 15, the water inlet of the waste water pipe 15 is provided with the same pneumatic valve, the inside of the overflow tank 14 is movably provided with a screw rod 16, the outside of the screw rod 16 is movably provided with a scraper 17, the front end of the overflow tank 14 is provided with a sewage tank 18, and the front end of the screw rod 16 is provided with a second motor 19.

[0034] The bottom of the sewage tank 18 is threadedly connected and sealed by a sealing cover, the top of the overflow tank 14 is lower than the top end of the pool body 1, and the sewage tank 18 is used for temporarily storing the sludge and sundries remaining after cleaning, and the waste water pipe 15 is used for discharging waste water.

[0035] The scraper 17 is threadedly connected with the screw rod 16, the scraper 17 is slidably arranged in the overflow tank 14, the screw rod 16 drives the scraper 17 to slide, and the sludge and sundries in the overflow tank 14 are scraped away by the scraper 17.

[0036] Specifically, the second motor 19 drives the screw rod 16 to rotate, so that the scraper 17 slides under the action of threads, the sundries and sludge in the overflow tank 14 are scraped to the waste water pipe 15 for discharge, and when the scraper 17 slides back to the original position, the residual sundries and sludge are scraped into the sewage tank 18 for temporary storage.

[0037] In actual operation, sewage enters the pool body 1 through the water inlet pipe 7, impurities, fine particles and sludge in the sewage are intercepted by the two groups of fillers 2, and filtered water is discharged through the drain pipe 9, the upper limit of the liquid level to be controlled is input in the PLC system, when the liquid level meter 3 collects the liquid level of the pool body 1 to the upper limit, the PLC system automatically triggers the opening and closing state of the pneumatic valve;

[0038] When backwashing, the backwashing pipe 8 is connected with the high-pressure water pump, water flows into the spray frame 6 and is sprayed into the filler 2 through the spray head, the impurities, small particles and sludge in the filler 2 are flushed out, the flushed impurities enter the collecting pipe 10 under the action of water flow and the inclined filler 2, the first motor 12 is started to rotate the spiral rod 11, the spiral rod 11 transports the impurities and sludge backward to the sewage pipe 13, and the impurities and sludge are discharged through the sewage pipe 13;

[0039] When cleaning, the impurities floating on the water surface during backwashing enter the overflow tank 14, the second motor 19 is started to rotate the screw rod 16, the scraper 17 slides backward through the screw thread of the screw rod 16, the sludge and impurities in the overflow tank 14 are scraped into the waste water pipe 15 to be discharged, when the scraper 17 slides forward to reset, the residual sludge and impurities are scraped into the sewage tank 18 to be temporarily stored, and the sewage tank 18 is regularly cleaned through the cover at the bottom of the sewage tank 18.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A filter tank structure with automatic backwashing function, comprising a tank body (1), the inside of the tank body (1) is provided with two groups of fillers (2) and a liquid level meter (3), characterized in that: The inside of the pool body (1) is provided with a sewage mechanism (4) at the bottom end, and the inside of the pool body (1) is provided with a cleaning mechanism (5) at the top end; The sewage mechanism (4) comprises a spray frame (6) and a collecting pipe (10), the spray frame (6) is fixedly installed at the inside of the pool body (1) at the bottom end, a water inlet pipe (7) is installed through the front end of the pool body (1) at the top end, a backwashing pipe (8) is connected and installed at the front end of the spray frame (6), a drain pipe (9) is installed through the rear end of the pool body (1) at the bottom end, the collecting pipe (10) is fixedly installed between the two groups of fillers (2), a screw rod (11) is movably installed in the collecting pipe (10), a first motor (12) is installed at the front end of the screw rod (11), and a sewage pipe (13) is installed at the rear end of the collecting pipe (10).

2. The filter tank structure with automatic backwashing function according to claim 1, characterized in that: The outer side of the filler (2) is higher than the inner side, and the two groups of fillers (2) are symmetrically arranged.

3. The filter tank structure with automatic backwashing function according to claim 1, characterized in that: The water inlet of the water inlet pipe (7), the drain pipe (9), the backwashing pipe (8) and the sewage pipe (13) is provided with a pneumatic valve.

4. The filter tank structure with automatic backwashing function according to claim 1, characterized in that: The top of the spray frame (6) is provided with a plurality of spray heads, and the spray frame (6) is in communication with the inside of the backwashing pipe (8).

5. The filter tank structure with automatic backwashing function according to claim 1, characterized in that: The top of the collecting pipe (10) is open, and the screw rod (11) is fixedly connected with the first motor (12).

6. The filter tank structure with automatic backwashing function according to claim 1, characterized in that: The cleaning mechanism (5) comprises an overflow tank (14), the overflow tank (14) is installed on the inner wall of the top end of the pool body (1), a waste water pipe (15) is installed at the rear end of the overflow tank (14), the same pneumatic valve is installed at the water inlet of the waste water pipe (15), a screw rod (16) is movably installed in the overflow tank (14), a scraper (17) is movably installed outside the screw rod (16), a sewage tank (18) is installed at the front end of the overflow tank (14), and a second motor (19) is installed at the front end of the screw rod (16).

7. The filter tank structure with automatic backwashing function according to claim 6, characterized in that: The bottom of the sewage tank (18) is sealed by a sealing cover connected by threads, and the top of the overflow tank (14) is lower than the top end of the pool body (1).

8. The filter tank structure with automatic backwashing function according to claim 6, characterized in that: The scraper (17) and the screw rod (16) are threadedly connected, and the scraper (17) is slidably arranged in the overflow tank (14).

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