Novel sand filter tank

Abstract

The novel sand filter tank comprises a water inlet cylinder, a water outlet cylinder and a filter cylinder, annular plates are rotatably connected to the top and the bottom of the filter cylinder, the bottom of the water inlet cylinder is opened and detachably fixed on the annular plate at the top of the filter cylinder in a sealed mode, and the top of the water outlet cylinder is opened and detachably fixed on the annular plate at the bottom of the filter cylinder in a sealed mode. A back washing mechanism is arranged in the water outlet cylinder; a mounting plate is arranged at the center of the separation net; a stirring shaft is inserted into the lower mounting plate; a bearing connected with the stirring shaft is arranged on the upper mounting plate; a main shaft of the first motor penetrates into the water inlet cylinder and is fixedly connected with the stirring shaft through a coupling; a power mechanism for driving the filter cylinder to rotate is arranged on the water outlet cylinder. The filter is convenient to disassemble and assemble, the filter sand is convenient to replace, the cleaning effect is good, and the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and in particular to a novel sand filter tank. Background Technology

[0002] A sand filter is a type of filter filled with filter sand. Water to be filtered is passed into the sand filter, and as the water passes through the filter sand, some impurities in the water are filtered out. The filtered water then exits from the sand filter, thus completing the filtration process. Because impurities filtered out by the sand can remain on the filter sand, the filter sand in the sand filter needs to be backwashed to avoid affecting the filtration effect.

[0003] Currently, traditional sand filters directly filter the water flow during filtration. As the water flows down, it impacts the same spot, affecting the filtration effect. During backwashing, only the water flow is used to wash the filter sand, which is not enough to clean the filter sand thoroughly. Impurities and dirt left on the filter sand can easily condense and clump together, causing the filtration effect of the sand filter to decrease. At the same time, sand filters are often installed as a single unit, making it inconvenient to remove and replace the filter sand. Summary of the Invention

[0004] The present invention aims to address the shortcomings of the prior art by providing a novel sand filter tank.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A novel sand filter tank includes an inlet cylinder, an outlet cylinder, and a filter cylinder. The inlet cylinder has an inlet on one side, and the outlet cylinder has an outlet on one side. An annular plate is rotatably connected to the top and bottom of the filter cylinder. The bottom opening of the inlet cylinder is detachably and sealed to the annular plate at the top of the filter cylinder, and the top opening of the outlet cylinder is detachably and sealed to the annular plate at the bottom of the filter cylinder. A separation mesh is detachably installed on the inner wall of the annular plate. Filter sand is filled inside the filter cylinder and separated from the inlet and outlet cylinders by the separation mesh. A backwashing mechanism is provided inside the outlet cylinder. A mounting plate is located at the center. A stirring shaft is inserted into the lower mounting plate, and a bearing connected to the stirring shaft is located on the upper mounting plate. The top of the stirring shaft passes through the water inlet cylinder, and a first motor is installed at the top of the water inlet cylinder. The main shaft of the first motor passes through the water inlet cylinder and is connected and fixed to the stirring shaft through a coupling. A working port corresponding to the coupling is located on one side of the water inlet cylinder, and a sealing cover is hinged to the working port. A power mechanism for driving the filter cylinder to rotate is located on the water outlet cylinder. A first stirring blade is located on the stirring shaft inside the filter cylinder, and several second stirring blades are radially arranged on the inner wall of the filter cylinder. The first and second stirring blades are arranged vertically and horizontally.

[0006] Specifically, a number of first screws are evenly distributed around the bottom circumference of the water inlet cylinder, and a number of first through holes corresponding to the first screws are provided on the annular plate above. The first screws pass through the first through holes and are fixed by tightening nuts, and a first sealing gasket is provided at the bottom of the water inlet cylinder.

[0007] Specifically, several second screws are evenly distributed around the top circumference of the water outlet cylinder, and several second through holes corresponding to the second screws are provided on the annular plate below. The second screws pass through the second through holes and are fixed by tightening nuts, and a second sealing gasket is provided at the top of the water outlet cylinder.

[0008] Specifically, the upper and lower annular plates have corresponding grooves on opposite sides, and the edges of the isolation net are fixed in the corresponding grooves by bolts.

[0009] Specifically, the backwashing mechanism includes a coil with support rods fixed to the inner wall of the outlet cylinder on both sides. The coil is equipped with several nozzles corresponding to the lower isolation net, and the outlet cylinder has a water filling port connected to the coil on the outside.

[0010] Specifically, the bottom of the stirring shaft has a cross-shaped insert, and the mounting plate below has a cross-shaped slot, into which the insert is inserted.

[0011] Specifically, the power mechanism includes a second motor installed on the outside of the water outlet cylinder, a first gear on the outside of the filter cylinder, a second gear meshing with the first gear fixed on the main shaft of the second motor, and the stirring shaft and the filter cylinder rotating in opposite directions.

[0012] The beneficial effects of this utility model are as follows: This utility model is designed with an inlet cylinder, an outlet cylinder, a filter cylinder, an annular plate, an isolation net, a mounting plate, a stirring shaft, a first motor, a first stirring blade, a second stirring blade, and a power mechanism, all of which are set up as separate units. The inlet cylinder, outlet cylinder, filter cylinder, and isolation net are easy to disassemble and assemble, and the filter sand is easy to replace. Moreover, during filtration and backwashing, the filter sand is stirred and can fully contact the water, resulting in good filtration and cleaning effects and convenient use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] In the diagram: 1-Inlet cylinder; 2-Outlet cylinder; 3-Filter cylinder; 4-Inlet; 5-Outlet; 6-Annular plate; 7-Isolation net; 8-Mounting plate; 9-Agitator shaft; 10-First motor; 11-Working port; 12-First agitator blade; 13-Second agitator blade; 14-First screw; 15-Second screw; 16-Coil; 17-Nozzle; 18-Support rod; 19-Insertion block; 20-Second motor; 21-First gear; 22-Second gear;

[0015] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] like Figure 1 As shown, a novel sand filter tank includes an inlet cylinder 1, an outlet cylinder 2, and a filter cylinder 3. The inlet cylinder 1 has an inlet 4 on one side, and the outlet cylinder 2 has an outlet 5 on one side. An annular plate 6 is rotatably connected to the top and bottom of the filter cylinder 3. The bottom opening of the inlet cylinder 1 is detachably and sealed to the annular plate 6 at the top of the filter cylinder 3. The top opening of the outlet cylinder 2 is detachably and sealed to the annular plate 6 at the bottom of the filter cylinder 3. A plurality of first screws 14 are evenly distributed around the bottom circumference of the inlet cylinder 1. A plurality of first through holes corresponding to the first screws 14 are provided on the upper annular plate 6. The first screws 14 pass through the first through holes and are secured with nuts. A first sealing gasket is provided at the bottom of the inlet cylinder 1. A plurality of second screws 15 are evenly distributed around the top circumference of the outlet cylinder 2. A plurality of second through holes corresponding to the second screws 15 are provided on the lower annular plate 6. The second screws 15 pass through the second through holes and are secured with nuts. A second sealing gasket is provided at the top of the outlet cylinder 2.

[0018] An isolation net 7 is detachably installed on the inner wall of the annular plate 6. The upper and lower annular plates 6 are provided with grooves on opposite sides. The edge of the isolation net 7 is fixed in the corresponding groove by bolts. The filter sand is filled in the filter cylinder 3 and separated from the water inlet cylinder 1 and the water outlet cylinder 2 by the isolation net 7. The water outlet cylinder 2 is provided with a backwashing mechanism, which includes a coil 16. The coil 16 is provided with support rods 18 fixed to the inner wall of the water outlet cylinder 2 on both sides. The coil 16 is provided with several nozzles 17 corresponding to the lower isolation net 7. The water outlet cylinder 2 is provided with a water filling port connected to the coil 16 on the outside.

[0019] An installation plate 8 is provided in the center of the isolation net 7. A stirring shaft 9 is inserted into the lower installation plate 8. A cross-shaped insert 19 is provided at the bottom of the stirring shaft 9. A cross-shaped slot is provided on the lower installation plate 8. The insert 19 is inserted into the slot. A bearing connected to the stirring shaft 9 is provided on the upper installation plate 8. The top of the stirring shaft 9 passes through the water inlet cylinder 1. A first motor 10 is installed on the top of the water inlet cylinder 1. The main shaft of the first motor 10 passes through the water inlet cylinder 1 and is connected and fixed to the stirring shaft 9 through a coupling. A working port 11 corresponding to the coupling is provided on one side of the water inlet cylinder 1. A sealing cover is hinged on the working port 11.

[0020] The water outlet cylinder 2 is equipped with a power mechanism that drives the filter cylinder 3 to rotate. The power mechanism includes a second motor 20 installed on the outside of the water outlet cylinder 2, a first gear 21 on the outside of the filter cylinder 3, a second gear 22 that meshes with the first gear 21 fixed on the main shaft of the second motor 20, a stirring shaft 9 and the filter cylinder 3 rotating in opposite directions, a first stirring blade 12 on the stirring shaft 9 located inside the filter cylinder 3, and a plurality of second stirring blades 13 radially arranged on the inner wall of the filter cylinder 3, with the first stirring blades 12 and the second stirring blades 13 arranged vertically and horizontally.

[0021] In operation, the water to be filtered enters the inlet cylinder 1 through the inlet 4, then passes through the upper isolation net 7 into the filter cylinder 3 for filtration by filter sand. During filtration, the first motor 10 operates, and the stirring shaft 9 drives the first stirring blade 12 to rotate, stirring the filter sand and ensuring full contact between the filter sand and the wastewater, thus filtering impurities. The water then passes through the lower isolation net 7 into the outlet cylinder 2 and is discharged through the outlet 5. To backwash the filter sand, the nozzles 17 on the coil 16 spray water. At this time, the first motor 10 and the second motor 20 operate simultaneously, and the stirring shaft 9 and the filter... When the cylinder 3 rotates in the opposite direction, the first stirring blade 12 and the second stirring blade 13 fully agitate the filter sand and rinse it. The rinsed wastewater can be discharged through the upper inlet 4. When the filter sand needs to be replaced, open the sealing cover, separate the main shaft of the first motor 10 and the stirring shaft 9, remove the nut on the first screw 14, remove the inlet cylinder 1, remove the nut on the second screw 15, remove the filter cylinder 3, remove the upper isolation screen 7, rotate the stirring shaft 9 so that the first stirring blade 12 and the second stirring blade 13 are staggered, remove the upper isolation screen 7, and at the same time take out the stirring shaft 9, and pour out the filter sand.

[0022] This invention makes it easy to disassemble and assemble the inlet cylinder 1, outlet cylinder 2, and filter cylinder 3, and the filter sand is easy to replace. Furthermore, the filter sand is in full contact with water during filtration and backwashing, resulting in good filtration and cleaning effects and convenient use.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A new type of sand filter tank, characterized by, The utility model provides a filter, including water inlet cylinder (1), water outlet cylinder (2), filter cylinder (3), water inlet cylinder (1) one side is equipped with water inlet (4), and water outlet cylinder (2) one side is equipped with water outlet (5), and the top and bottom of filter cylinder (3) are rotatably connected with annular plate (6), and the bottom opening of water inlet cylinder (1) is arranged and can be detachably sealed and fixed on the annular plate (6) on the top of filter cylinder (3), and the top opening of water outlet cylinder (2) is arranged and can be detachably sealed and fixed on the annular plate (6) on the bottom of filter cylinder (3), and the inner wall of annular plate (6) is detachably installed with isolation net (7), and filter sand is filled in filter cylinder (3) and is separated from water inlet cylinder (1) and water outlet cylinder (2) through isolation net (7), and water outlet cylinder (2) is equipped with backflush mechanism, and the center of isolation net (7) is equipped with mounting plate (8), and the lower mounting plate (8) is inserted with stirring shaft (9), and the upper mounting plate (8) is equipped with bearing connected with stirring shaft (9), and the top of stirring shaft (9) penetrates into water inlet cylinder (1), and the top of water inlet cylinder (1) is installed with first motor (10), and the spindle of first motor (10) penetrates into water inlet cylinder (1) and is connected and fixed with stirring shaft (9) through coupling, and one side of water inlet cylinder (1) is equipped with with the work opening (11) corresponding with the coupling, and the work opening (11) is hinged with sealing cover, and water outlet cylinder (2) is equipped with power mechanism for driving filter cylinder (3) to rotate, and the stirring shaft (9) in filter cylinder (3) is equipped with first stirring blade (12), and the inner wall of filter cylinder (3) is equipped with a plurality of second stirring blades (13) radially, and first stirring blade (12) and second stirring blade (13) are arranged alternately.

2. A new sand filter tank according to claim 1, characterized in that The bottom of water inlet cylinder (1) is uniformly provided with a plurality of first screws (14), the upper annular plate (6) is provided with a plurality of first through holes corresponding to the first screws (14), the first screws (14) pass through the first through holes and are fixed by rotating nuts, and the bottom of the water inlet cylinder (1) is provided with a first sealing gasket.

3. A new sand filter tank according to claim 1, characterized in that, The top of the water outlet cylinder (2) is uniformly provided with a plurality of second screws (15), the lower annular plate (6) is provided with a plurality of second through holes corresponding to the second screws (15), the second screws (15) pass through the second through holes and are fixed by rotating nuts, and the top of the water outlet cylinder (2) is provided with a second sealing gasket.

4. A new sand filter tank according to claim 1, characterized in that, The opposite sides of the upper and lower annular plates (6) are correspondingly provided with grooves, and the edges of the isolation net (7) are fixed in the corresponding grooves by bolts.

5. A new sand filter tank according to claim 1, characterized in that, The backflush mechanism includes a coil pipe (16), the coil pipe (16) is provided with support rods (18) fixed to the inner wall of the water outlet cylinder (2) on both sides, a plurality of nozzles (17) corresponding to the lower isolation net (7) are provided on the coil pipe (16), and a water inlet is provided on the outer side of the water outlet cylinder (2) and connected with the coil pipe (16).

6. A new sand filter tank according to claim 1, characterized in that, The bottom of the stirring shaft (9) is provided with a cross-shaped insertion block (19), the lower mounting plate (8) is provided with a cross-shaped insertion slot, and the insertion block (19) is inserted into the insertion slot.

7. A new sand filter tank according to claim 1, characterized in that, The power mechanism comprises a second motor (20) installed outside the water outlet cylinder (2), the filter cylinder (3) is provided with a first gear (21) outside, the main shaft of the second motor (20) is fixedly provided with a second gear (22) engaged with the first gear (21), and the stirring shaft (9) and the filter cylinder (3) rotate in opposite directions.

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