A sewage filtering device for environmental protection water treatment

Abstract

The utility model relates to a sewage filtering device for environmental protection water treatment, which comprises a water tank, a filter cartridge, a L-shaped pollution guide plate and a filter plate. The filter cartridge is rotatably arranged above the water tank through a support mechanism, and a plurality of first filter holes are formed in the wall of the filter cartridge. The vertical plate of the L-shaped pollution guide plate is fixedly arranged on the water tank, and the horizontal plate of the L-shaped pollution guide plate extends into the filter cartridge. The filter plate is arranged in the filter cartridge and above the horizontal plate of the L-shaped pollution guide plate. The filter cartridge and the filter plate with different filter hole diameters constitute a two-stage filtering system. The filter plate first performs coarse filtration to intercept large particles. The filter cartridge then performs fine filtration to further remove fine suspended solids, thereby improving the efficiency and effect of single filtration and increasing the processing capacity. The device controls the rotation of the filter cartridge and the filter plate through a driving mechanism and cooperates with the unique L-shaped pollution guide plate to automatically and centrally clean the filter residue. This design avoids the blockage of the filter holes, ensures the continuity and stability of the filtration process, and reduces the frequency of shutdown cleaning and the maintenance workload.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater filtration device for environmental water treatment. Background Technology

[0002] With increasingly stringent environmental protection requirements, the efficient treatment of industrial and domestic wastewater has become a crucial step. In wastewater treatment processes, filtration is an important pretreatment step for removing suspended solids from water, and its effectiveness directly affects the load of subsequent treatment units and the quality of the effluent.

[0003] Currently, common mechanical filtration equipment such as drum filters and disc filters are widely used. These devices typically achieve liquid-solid separation through a rotating filter cylinder or disc in a dynamic process. The filtered water is discharged through the filter holes, while the trapped filter residue is carried to the unloading area and discharged as the filter body rotates. However, existing technologies generally suffer from easy clogging, requiring frequent cleaning, which increases labor intensity and reduces wastewater filtration efficiency. To address this, a wastewater filtration device for environmental water treatment is proposed to solve the problems of easy clogging of filter screens, incomplete residue unloading, and discontinuous operation in existing technologies. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problem by providing a wastewater filtration device for environmentally friendly water treatment.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a wastewater filtration device for environmentally friendly water treatment, comprising: sink; A filter cylinder is rotatably mounted above the water tank via a support mechanism, and a number of filter holes of No. 1 are opened on the cylinder wall of the filter cylinder. The L-shaped guide plate has its vertical plate fixed on the water tank and its horizontal plate extending into the filter cylinder. A filter plate is disposed inside the filter cylinder and located above the horizontal plate of the L-shaped guide plate. The filter plate is rotatably disposed, and its rotation axis is parallel to or coincides with the rotation axis of the filter cylinder. The filter plate is configured such that when it is rotated to the lowest position, its plate surface faces the horizontal plate of the L-shaped guide plate to guide the trapped filter residue onto it.

[0006] As a preferred embodiment of the present invention, it further includes a drive mechanism; the drive mechanism includes a No. 1 motor fixedly installed on one side of the water tank, the No. 1 motor being connected to the filter cartridge through a transmission mechanism to drive it to rotate around its own axis.

[0007] As a preferred embodiment of the present invention, the driving mechanism further includes a second motor and a transmission shaft; the second motor is fixedly installed, and its output end is connected to one end of the transmission shaft, while the other end of the transmission shaft passes through the end of the filter cylinder and is fixedly connected to the filter plate, so as to drive the filter plate to rotate independently of the filter cylinder.

[0008] As a preferred embodiment of this utility model, the second motor is a servo motor or a stepper motor with an encoder.

[0009] As a preferred embodiment of this utility model, it also includes a cleaning mechanism; the cleaning mechanism includes an air pump and an air pipe; the air pump is fixedly mounted on the water tank, and its outlet is connected to the air pipe; the air pipe is located above the filter cartridge, and the air pipe wall has several downward-facing air outlets.

[0010] As a preferred embodiment of this utility model, the filter plate is provided with a plurality of second filter holes, the diameter of which is larger than that of the first filter hole.

[0011] As a preferred embodiment of this utility model, the filter plate is further provided with a plurality of protruding triangular blocks on its surface, the inclined surfaces of the triangular blocks being disposed away from the L-shaped guide plate; the second filter hole is formed between adjacent triangular blocks.

[0012] As a preferred embodiment of this utility model, the support mechanism includes a slide rail fixed to the water tank and a support roller mounted on the filter cylinder, wherein the support roller and the slide rail are in rolling cooperation.

[0013] This invention has the following advantages: by setting filter cylinders and filter plates with filter holes of different diameters, a two-stage filtration system is formed. The filter plates first perform coarse filtration to intercept larger particulate impurities; the filter cylinders then perform fine filtration to further remove fine suspended matter, thereby improving the efficiency and effect of single filtration and increasing the processing capacity.

[0014] The device controls the rotation of the filter cartridge and filter plate through a drive mechanism, and with the help of a unique L-shaped guide plate, it realizes automatic and centralized cleaning of filter residue. This design avoids the filter holes from being blocked, ensures the continuity and stability of the filtration process, and reduces the frequency of downtime for cleaning and maintenance workload. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection structure of the drive mechanism according to a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the connection structure of the filter plate according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a filter plate according to a preferred embodiment of the present invention.

[0016] Explanation of reference numerals in the attached diagram: 1. Water tank; 2. Filter cartridge; 3. Motor No. 1; 4. Motor No. 2; 5. Air pump; 6. Air pipe; 7. Air outlet; 8. Filter hole No. 1; 9. L-shaped guide plate; 10. Support plate; 11. Drive shaft; 12. Filter plate; 13. Triangular block; 14. Filter hole No. 2; 15. Mounting plate. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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. They do not 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to the following: Figure 1-3 This utility model discloses a wastewater filtration device for environmentally friendly water treatment, including a water tank 1. A filter cylinder 2 is mounted on top of the water tank 1. The filter cylinder 2 is rotatably connected to the water tank 1 via supporting rollers and slides. An L-shaped guide plate 9 is provided on one side inside the filter cylinder 2. The vertical plate of the L-shaped guide plate 9 extends to the outside of the filter cylinder 2 and is fixedly connected to the water tank 1. A rotatable filter plate 12 is provided inside the filter cylinder 2 and above the L-shaped guide plate 9. When the filter plate 12 rotates to its lowest point, it faces the top of the L-shaped guide plate 9.

[0021] A mounting plate 15 is fixedly connected to the middle of the side of the water tank 1 away from the L-shaped guide plate 9. A motor 3 is fixedly connected to the bottom of the mounting plate 15 away from the filter cartridge 2. The output end of the motor 3 passes through the mounting plate 15 and is connected to the filter cartridge 2 through a gear set, driving the filter cartridge 2 to rotate.

[0022] An air pump 5 is fixedly connected to the top of the mounting plate 15. An air pipe 6 is fixedly connected to the air outlet end of the air pump 5. Several air outlets 7 are equidistantly cut at the bottom of the air pipe 6.

[0023] A second motor 4 with an encoder is fixedly connected to the middle of the mounting plate 15. The output end of the second motor 4 passes through the mounting plate 15 and is fixedly connected to a drive shaft 11. The drive shaft 11 is fixedly connected to the bottom of the filter plate 12. A support plate 10 is fixedly connected to the top of the water tank 1 on the side away from the mounting plate 15. The drive shaft 11 is rotatably connected to the support plate 10.

[0024] Several triangular blocks 13 are fixedly connected at equal intervals on the top of the filter plate 12. The inclined surface of the triangular blocks 13 faces away from the L-shaped guide plate 9. The filter plate 12 is provided with a second filter hole 14 between the triangular blocks 13. The second filter hole 14 penetrates the filter plate 12.

[0025] The filter cylinder 2 is provided with several No. 1 filter holes 8 at equal intervals. The No. 1 filter holes 8 penetrate the filter cylinder 2, and the inner diameter of the No. 2 filter hole 14 is larger than the inner diameter of the No. 1 filter hole 8.

[0026] Specifically, when this utility model is used, sewage is sent into the continuously rotating filter cylinder 2 through the inlet. The sewage first encounters the filter plate 12, which has a second filter hole 14 with a larger aperture, to perform coarse filtration of the sewage and intercept larger solid particles, such as fruit peels, plastic bag fragments, and larger organic matter. The sewage that has passed the coarse filtration continues to pass through the first filter hole 8 on the wall of the filter cylinder 2 for fine filtration. Fine suspended solids are intercepted, and the filtered clean water flows into the stainless steel water tank 1 below and is discharged through the outlet. Sludge Removal Operation: Over time, a significant amount of coarse filter residue accumulates on filter plate 12. The control system activates motor 4 at preset time intervals or based on position signals from the motor encoder. Motor 4 drives the transmission shaft 11, causing filter plate 12 to rotate rapidly, aligning it with the L-shaped guide plate 9. When filter plate 12 reaches its lowest, downward-facing position, the filter residue trapped on its surface is precisely dumped onto the stationary L-shaped guide plate 9 under gravity. The filter residue slides along the inclined surface of the L-shaped guide plate 9 and is eventually discharged from its end, completing one automatic sludge removal process. After cleaning, motor 4 rotates in the opposite direction, resetting filter plate 12 to its working position for continued filtration.

[0027] Multiple raised triangular blocks 13 are welded on the surface of the filter plate 12. These triangular blocks can play a role in "stirring and turbulence" when the filter cylinder rotates, preventing the filter residue from adhering too tightly to the surface of the filter plate, making it easier to be cleaned during cleaning. The second filter hole 14 is opened in the recess between the triangular blocks 13.

[0028] The air pump 5 is fixedly installed, and its outlet is connected to a main air pipe 6. The main air pipe 6 is arranged axially above the filter cartridge 2, and a row of densely packed air outlets 7 is opened on the lower side of the main air pipe 6. High-pressure airflow is continuously or pulsedly ejected from the air outlets 7 and blown towards the outer surface of the filter cartridge 2. This can effectively blow the fine particles blocked in the first filter hole 8 back into the filter cartridge or blow them off, keeping the fine filter holes unobstructed.

[0029] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0030] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wastewater filtration device for environmentally friendly water treatment, characterized in that, include: sink(1); The filter cylinder (2) is rotatably mounted above the water tank (1) by a support mechanism, and a number of filter holes (8) are opened on the cylinder wall of the filter cylinder (2). The L-shaped guide plate (9) has its vertical plate fixed on the water tank (1) and its horizontal plate extending into the filter cylinder (2); A filter plate (12) is disposed inside the filter cylinder (2) and located on the horizontal plate of the L-shaped guide plate (9). The filter plate (12) is rotatably disposed, and its rotation axis is parallel or coincident with the rotation axis of the filter cylinder (2). The filter plate (12) is configured such that when it is rotated to the lowest position, its plate surface faces the horizontal plate of the L-shaped guide plate (9) so as to guide the intercepted filter residue onto it.

2. The wastewater filtration device for environmental water treatment according to claim 1, characterized in that, It also includes a drive mechanism; the drive mechanism includes a No. 1 motor (3) fixedly installed on one side of the water tank (1), the No. 1 motor (3) is connected to the filter cylinder (2) through a transmission mechanism to drive it to rotate around its own axis.

3. The wastewater filtration device for environmental water treatment according to claim 2, characterized in that, The driving mechanism also includes a second motor (4) and a transmission shaft (11); the second motor (4) is fixedly installed, and its output end is connected to one end of the transmission shaft (11). The other end of the transmission shaft (11) passes through the end of the filter cylinder (2) and is fixedly connected to the filter plate (12) so as to drive the filter plate (12) to rotate independently of the filter cylinder (2).

4. The wastewater filtration device for environmental water treatment according to claim 3, characterized in that, The second motor (4) is a servo motor or stepper motor with an encoder.

5. A wastewater filtration device for environmentally friendly water treatment according to claim 2, characterized in that, It also includes a cleaning mechanism; the cleaning mechanism includes an air pump (5) and an air pipe (6); the air pump (5) is fixedly installed on the water tank (1), and its outlet is connected to the air pipe (6); the air pipe (6) is located above the filter cartridge (2), and a number of downward-facing air outlets (7) are opened on the wall of the air pipe (6).

6. A wastewater filtration device for environmentally friendly water treatment according to claim 1, characterized in that, The filter plate (12) has several second filter holes (14), and the diameter of the second filter hole (14) is larger than the diameter of the first filter hole (8).

7. A wastewater filtration device for environmentally friendly water treatment according to claim 6, characterized in that, The filter plate (12) is also provided with a plurality of protruding triangular blocks (13), the inclined surfaces of the triangular blocks (13) are set away from the L-shaped guide plate (9); the second filter hole (14) is opened between the adjacent triangular blocks (13).

8. A wastewater filtration device for environmental water treatment according to claim 1, characterized in that, The support mechanism includes a slide fixed on the water tank (1) and a support roller installed on the filter cylinder (2), wherein the support roller and the slide are in rolling cooperation.

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