Large-flux automatic backwashing filter tank equipment

Abstract

The utility model relates to the technical field of sewage treatment, and provides large-flux automatic backwashing filter equipment, which comprises a filter body, a filter material layer, an intercepting mechanism, a flow slowing plate, a drain hole, a backwashing mechanism, a suspended matter cleaning mechanism and a cleaning nozzle, the filter material layer is fixedly arranged at the bottom end in the filter body, the intercepting mechanism is positioned above the filter material layer, and the flow slowing plate is positioned above the drain hole. A plurality of water flowing holes are formed in the three flow slowing plates, the backwashing mechanism is mounted at the bottom end of the filter tank body, the three washing water pumps are fixedly connected to the outer wall of the filter tank body, and the suspended matter cleaning mechanism is mounted in the filter tank body. The problems that after to-be-filtered water enters a filter tank, suspended solids block pores of a filter material, water circulation is affected, backwashing is not thorough when the filter tank is backwashed, the water purification amount is reduced, and the water purification efficiency of a whole water treatment system is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a large-flux automatic backwash filter tank device. Background Art

[0002] Filters are used for filtering purposes. Some are used to remove suspended matter in water to obtain water with lower turbidity, while others are used to remove water from sludge to obtain sludge with lower water content. There are many types of filter tanks, which can be divided into fast filters and slow filters according to the filtration speed.

[0003] Filter backwashing is the process of using reverse water flow to flush the filter layer in order to restore the normal operation of the filter. When backwashing the filter, you first need to empty the filter, open the drain valve or sewage valve on the wall to drain the residual water in the filter, then open the exhaust valve to release the gas, and then open the backwash water valve and backwash air inlet valve to allow backwash water and air to flow into the filter for backwashing. During the backwashing process, pollutants and impurities will be cleaned and discharged, and then close the drain valve and backwash water valve to prevent water from continuing to lose, and open the water inlet valve again. After the backwashing is completed, open the water inlet valve again to restore the normal operation of the filter.

[0004] In the prior art, during the backwashing of the filter tank, since the water to be filtered contains suspended solids, the solid suspended matter blocks the pores of the filter material after the filtered water enters the filter tank, affecting the circulation of water, resulting in incomplete backwashing of the filter tank, thereby causing a decrease in the amount of purified water and affecting the water purification efficiency of the entire water treatment system. Utility Model Content

[0005] The utility model provides a large-flux automatic backwash filter device, which solves the problem in the related art that when the pores between the filter materials of the backwash filter device are blocked, the water inlet volume becomes smaller, resulting in uneven and incomplete backwashing, thereby causing a decrease in the amount of purified water and affecting the water treatment efficiency.

[0006] The technical solution of the utility model is as follows:

[0007] A large-flux automatic backwash filter device comprises a filter body, a filter material layer, an interception mechanism, a slow flow plate, a water flow hole, a backwash mechanism, a suspended matter cleaning mechanism and a cleaning nozzle;

[0008] The filter material layer is fixedly arranged at the bottom end of the filter tank body;

[0009] The interception mechanism is installed in the filter tank body, the interception mechanism is located above the filter material layer, and the interception mechanism includes: three slow flow plates, and a plurality of water flow holes are opened on the three slow flow plates;

[0010] The backwashing mechanism is installed at the bottom end of the filter tank body, and the backwashing mechanism includes a flushing water pump. Three flushing water pumps are provided, and the three flushing water pumps are fixedly connected to the outer wall of the filter tank body;

[0011] The suspended matter cleaning mechanism is installed in the filter tank body, and the suspended matter cleaning mechanism includes a cleaning nozzle.

[0012] Furthermore, the interception mechanism includes a partition plate, a rotating blade, a rotating shaft, a bearing plate, a water hole and a filter assembly;

[0013] There are two partition plates, which are fixedly connected to the filter tank body to divide the filter tank body into three filter chambers;

[0014] The rotating blade is provided with a plurality of blades, and the rotating blade is arranged in a cross shape. The three slow flow plates are fixedly connected in the three filter chambers, and the three slow flow plates are located above the rotating blades.

[0015] There are multiple rotating shafts, and the multiple rotating shafts are rotatably connected in the three filter chambers, and each rotating shaft is provided with a rotating blade;

[0016] There are three bearing plates, which are respectively fixedly connected to the three filter chambers, and the three bearing plates are located below the plurality of rotating blades, and a plurality of water holes are provided on the three bearing plates;

[0017] The filter assembly is mounted on the rotating blade.

[0018] Furthermore, the backwashing mechanism includes a flushing pipe and a flushing head;

[0019] There are three flushing pipes, which are fixedly connected to the filter tank body, are located below the filter material layer, and one end of each flushing pipe is connected to a flushing water pump;

[0020] There are multiple flushing heads, and each flushing pipe is connected to multiple flushing heads.

[0021] Furthermore, the suspended matter cleaning mechanism includes a water filling pipe and a sealing plate;

[0022] There are three water irrigation pipes, which are respectively connected to the outer walls of the three filter chambers, and each of the three water irrigation pipes is connected to a plurality of cleaning nozzles;

[0023] There are three sealing plates, and the bottom end of each of the bearing plates is slidably connected with one of the sealing plates. Each of the sealing plates is provided with a through hole that matches the water through hole.

[0024] Preferably, the filter assembly comprises an interception box and a filter layer;

[0025] There are multiple interception boxes, and four interception boxes are fixedly connected to each rotating blade;

[0026] There are multiple filter layers, and each interception box is equipped with one filter layer.

[0027] More preferably, the plurality of water flow holes opened on the slow flow plate are arranged above the interception box.

[0028] The working principle and beneficial effects of the utility model are:

[0029] 1. In the utility model, the solid suspended matter in the water to be filtered can be intercepted by the cooperation between the interception mechanism and the filter tank body to prevent the solid suspended matter from clogging the filter material layer, so that the backwashing process of the filter tank will not be incomplete due to the obstruction of water flow, thereby affecting the efficiency of water treatment;

[0030] 2. In the utility model, the interception mechanism does not affect the rate at which the water to be filtered enters the filter material layer during the process of intercepting the solid suspended matter. While filtering out the solid suspended matter, the water to be filtered can also be ensured to quickly enter the filter material layer, thus avoiding the interception mechanism from failing or being blocked and affecting the efficiency of water treatment;

[0031] 3. In the utility model, the solid suspended matter intercepted by the interception mechanism can be flushed away and discharged through other ports through the suspended matter cleaning mechanism, so that the interception mechanism can circulate and filter the suspended matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the interception mechanism of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the interception box of the utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the sealing plate and the bearing plate of the utility model;

[0037] Figure 5 This is a schematic diagram of the backwashing mechanism structure of the utility model.

[0038] In the figure: 1. filter tank body; 2. filter material layer; 3. slow flow plate; 4. water flow hole; 5. flushing water pump; 6. cleaning nozzle; 7. partition plate; 8. interception box; 9. rotating shaft; 10. rotating blade; 11. bearing plate; 12. water hole; 13. filter layer; 14. flushing pipe; 15. flushing head; 16. water pipe; 17. sealing plate. DETAILED DESCRIPTION

[0039] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figure 1~Figure 5 As shown, this embodiment proposes a large-flux automatic backwash filter device, including a filter body 1, a filter material layer 2, an interception mechanism, a slow flow plate 3, a water flow hole 4, a backwashing mechanism, a suspended matter cleaning mechanism and a cleaning nozzle 6. The filter material layer 2 is fixedly arranged at the bottom end of the filter body 1, and the interception mechanism is installed in the filter body 1. The interception mechanism is located above the filter material layer 2. The interception mechanism includes: three slow flow plates 3 are provided, and a plurality of water flow holes 4 are opened on the three slow flow plates 3. The backwashing mechanism is installed at the bottom end of the filter body 1. The mechanism includes a flushing water pump 5, and three flushing water pumps 5 are provided. The three flushing water pumps 5 are fixedly connected to the outer wall of the filter tank body 1. The suspended matter cleaning mechanism is installed in the filter tank body 1. The suspended matter cleaning mechanism includes a cleaning nozzle 6. When the water to be filtered is about to enter the filter tank for filtration, the water to be filtered before entering the filter tank first falls on the slow flow plate 3. The slow flow plate 3 slows down the impact force of the water flow, and then the water flow is intercepted by the interception mechanism to filter out the solid suspended matter. In this way, when the recoil mechanism is working, the water flows through the filter material layer 2 without hindrance, and the filter material layer 2 is evenly cleaned.

[0041] Among them, the interception mechanism includes a partition plate 7, a rotating blade 10, a rotating shaft 9, a bearing plate 11, a water hole 12 and a filter assembly. There are two partition plates 7, and the two partition plates 7 are fixedly connected in the filter body 1 to divide the filter body 1 into three filter chambers. There are multiple rotating blades 10, and the rotating blades 10 are set in a cross shape. Three slow flow plates 3 are fixedly connected in the three filter chambers, and the three slow flow plates 3 are located above the rotating blades 10. There are multiple rotating shafts 9, and multiple rotating shafts 9 are rotatably connected in the three filter chambers. Each rotating shaft 9 is provided with a rotating blade 10. There are three bearing plates 11, and the three bearing plates 11 are fixedly connected to the three filter chambers respectively. The three bearing plates 11 is located below the multiple rotating blades 10, and multiple water holes 12 are provided on the three supporting plates 11. When the filtered water is poured onto the slow flow plate 3, the slow flow plate 3 reduces the impact and plays a diversion role, guiding the water flow to flow down above the rotating blades 10 and into the interception box 8. The bottom of the interception box 8 is fixed with activated carbon and other materials with adsorption capacity. The filtered water with solid suspended matter filtered out flows out from the holes at the bottom of the interception box 8. The impact force of the water flow causes the rotating blades 10 to rotate, and the other interception boxes 8 are turned to the water flow position. The rotating blades 10 gradually tilt during the rotation, so that the water in the interception box 8 can flow out quickly, thereby filtering the solid suspended matter in the filtered water without affecting the water flow.

[0042] Secondly, the backwashing mechanism includes a flushing pipe 14 and a flushing head 15. There are three flushing pipes 14, which are fixedly connected to the filter tank body 1. The three flushing pipes 14 are located below the filter material layer 2. One end of each flushing pipe 14 is connected to a flushing water pump 5. There are multiple flushing heads 15, and each flushing pipe 14 is connected to multiple flushing heads 15. The backwashing mechanism performs backwashing by spraying water onto the filter material layer 2. After the water to be filtered is pre-treated by the interception mechanism, the filter material layer 2 will be flushed more evenly and fully, which is beneficial to improving the water purification efficiency.

[0043] Again, the suspended matter cleaning mechanism includes a water filling pipe 16 and a sealing plate 17. There are three water filling pipes 16, which are respectively connected to the outer walls of the three filter chambers. The three water filling pipes 16 are connected to multiple cleaning nozzles 6. There are three sealing plates 17. The bottom end of each supporting plate 11 is slidably connected to a sealing plate 17. Each sealing plate 17 is provided with a through hole that cooperates with the water hole 12. The suspended cleaning mechanism is used to clean the solid suspended matter adsorbed on the interception box 8. During cleaning, the sealing plate 17 is slid to block the water hole 12 on the supporting plate 11, and then the water filling pipe 16 is used to fill water into the cavity where the interception box 8 is located through a water pump to flush the solid suspended matter out of the filter tank, thereby ensuring the interception effect of the interception box 8 on the solid suspended matter.

[0044] Among them, the filtering component includes an interception box 8 and a filter layer 13. There are multiple interception boxes 8, and four interception boxes 8 are fixedly connected to each rotating blade 10. There are multiple filter layers 13, and each interception box 8 has a filter layer 13. The interception box 8 can rotate synchronously when the rotating blade 10 rotates to pour out the water without affecting the flow rate of the water flow.

[0045] Finally, the plurality of water flow holes 4 opened on the slow flow plate 3 are arranged above the interception box 8, so that when the water flows onto the slow flow plate 3, the water can be poured onto the interception box 8, thereby enhancing the filtering effect on the solid filtrate.

[0046] In this embodiment, the water to be filtered first enters the slow flow plate 3, and then enters the interception box 8 through the guiding effect of the slow flow plate 3. The adsorptive material in the interception box 8 adsorbs the solid suspended matter, and then the water enters the filter layer 2 to be filtered. After pretreatment by the interception mechanism, the solid suspended matter in the water to be filtered is greatly reduced, and will not cause blockage of the filter layer 2. Therefore, the backwashing mechanism is started, and the filter layer 2 is cleaned more evenly and fully when flushing the filter tank, which further improves the water purification efficiency. It is unnecessary to systematically remove the solid suspended matter from the water to be filtered before filtration, thereby reducing costs and improving water purification efficiency.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-flux automatic backwash filter device, comprising a filter body (1), characterized in that: Also includes: A filter material layer (2), the filter material layer (2) being fixedly arranged at the bottom end of the filter tank body (1); An interception mechanism, the interception mechanism being installed in the filter tank body (1), the interception mechanism being located above the filter material layer (2), the interception mechanism comprising a slow flow plate (3), three slow flow plates (3) being provided, and a plurality of water flow holes (4) being provided on the three slow flow plates (3); A backwashing mechanism, the backwashing mechanism being mounted at the bottom end of the filter tank body (1), the backwashing mechanism comprising a flushing water pump (5), three flushing water pumps (5) being provided, and the three flushing water pumps (5) being fixedly connected to the outer wall of the filter tank body (1); A suspended matter cleaning mechanism, wherein the suspended matter cleaning mechanism is installed in the filter tank body (1), and the suspended matter cleaning mechanism comprises a cleaning nozzle (6).

2. A large flux automatic backwash filter device according to claim 1, characterized in that: The interception mechanism comprises: A partition plate (7), wherein two partition plates (7) are provided, and the two partition plates (7) are fixedly connected in the filter tank body (1) to divide the filter tank body (1) into three filter chambers; A rotating blade (10), wherein a plurality of the rotating blades (10) are provided, the rotating blade (10) is arranged in a cross shape, the three slow flow plates (3) are fixedly connected in the three filter chambers, and the three slow flow plates (3) are located above the rotating blade (10); A rotating shaft (9), wherein a plurality of the rotating shafts (9) are provided, and the plurality of rotating shafts (9) are rotatably connected in the three filter chambers, and each of the rotating shafts (9) is provided with a rotating blade (10); A bearing plate (11), wherein three bearing plates (11) are provided, the three bearing plates (11) are respectively fixedly connected to the three filter chambers, the three bearing plates (11) are located below the plurality of rotating blades (10), and the three bearing plates (11) are provided with a plurality of water holes (12); A filter assembly is mounted on the rotating blade (10).

3. A large flux automatic backwash filter device according to claim 2, characterized in that: The backwashing mechanism comprises: A flushing pipe (14), wherein three flushing pipes (14) are provided, the three flushing pipes (14) are fixedly connected to the filter tank body (1), the three flushing pipes (14) are located below the filter material layer (2), and one end of each flushing pipe (14) is connected to one of the flushing water pumps (5); A flushing head (15), wherein a plurality of flushing heads (15) are provided, and each flushing pipe (14) is connected to a plurality of flushing heads (15).

4. A large flux automatic backwash filter device according to claim 3, characterized in that: The suspended matter cleaning mechanism comprises: A water irrigation pipe (16), wherein three water irrigation pipes (16) are provided, and the three water irrigation pipes (16) are respectively connected to the outer walls of the three filter chambers, and the three water irrigation pipes (16) are each connected to a plurality of the cleaning nozzles (6); A sealing plate (17), wherein three sealing plates (17) are provided, and the bottom end of each of the supporting plates (11) is slidably connected to one of the sealing plates (17), and each of the sealing plates (17) is provided with a through hole that matches the water through hole (12).

5. A large flux automatic backwash filter device according to claim 4, characterized in that: The filter assembly comprises: An interception box (8), wherein a plurality of the interception boxes (8) are provided, and each of the rotating blades (10) is fixedly connected to four of the interception boxes (8); A filter layer (13), wherein a plurality of filter layers (13) are provided, and each interception box (8) is provided with one filter layer (13).

6. A large flux automatic backwash filter device according to claim 5, characterized in that: The plurality of water flow holes (4) formed on the slow flow plate (3) are arranged above the interception box (8).

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