Filtering device for chemical sewage treatment

Abstract

The utility model discloses a filtering device for chemical sewage treatment in the technical field of sewage filtering, which comprises a barrel, a water inlet pipe is arranged at the upper end of the barrel, and a water outlet pipe is arranged at the lower end of the barrel. The lower end of the cylinder is opened and provided with a lower cover through a lock catch, and a sealing ring is arranged on the inner side of the lower cover. A conical filter screen is mounted in the cylinder body and divides the interior of the cylinder body into a to-be-filtered area and a filtered area. A plurality of strip-shaped convex structures are arranged on the periphery of the filter screen, and grooves in the inner sides of the strip-shaped convex structures are communicated with the to-be-filtered area. And a stirring structure is also arranged in the filter screen. And the water inlet pipe is communicated with the to-be-filtered area. The risk that the filter screen is blocked is reduced, the filtering efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage filtration, in particular to a filtering device for chemical sewage treatment. Background Art

[0002] Chemical wastewater contains a large amount of suspended matter, such as particles, sand, fibers, etc. These suspended matter not only affect the transparency and water quality of the wastewater, but may also cause damage to subsequent treatment equipment. Through filtration, these suspended matter can be effectively removed, making the wastewater clear and transparent, creating better conditions for subsequent treatment steps.

[0003] However, the existing chemical wastewater filtration devices still have the following problems: during filtration, suspended matter such as particles and sediment in the wastewater can easily clog the filter screen, requiring frequent shutdowns for maintenance, reducing filtration efficiency and increasing labor costs. Utility Model Content

[0004] The main purpose of the utility model is to provide a filtering device for chemical wastewater treatment, which is used to solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A filtering device for treating chemical wastewater comprises a cylinder, an inlet pipe is arranged at the upper end of the cylinder, and an outlet pipe is arranged at the lower end of the cylinder. The lower end of the cylinder is open and a lower cover is installed through a lock, a conical filter screen is installed in the cylinder, and the filter screen divides the inside of the cylinder into a to-be-filtered area and a filtered area. A plurality of strip-shaped convex structures are arranged around the filter screen, and the inner grooves of the strip-shaped convex structures are connected to the to-be-filtered area. A stirring structure is also arranged in the filter screen. The inlet pipe is connected to the to-be-filtered area.

[0007] Furthermore, the stirring structure includes a motor and a spiral blade. The motor is fixed to the top of the cylinder. The power output shaft of the motor rotates and extends into the cylinder and is connected to a rotating shaft, on which the spiral blade is installed.

[0008] Furthermore, the strip-shaped outwardly protruding structure is arranged along the side edge of the filter screen.

[0009] Furthermore, an upper annular groove is provided on the inner wall of the top of the cylinder, a lower annular groove is provided on the upper end surface of the lower cover, and the upper and lower ends of the filter screen are respectively installed in the upper annular groove and the lower annular groove.

[0010] Furthermore, the lock includes a first connecting piece, a second connecting piece and a bolt. The first connecting piece is fixed to one side of the lower cover, and the second connecting piece is correspondingly fixed to the outside of the cylinder. The first connecting piece and the second connecting piece are respectively provided with coaxial mounting holes, and bolts are installed in the mounting holes.

[0011] Furthermore, a sealing ring is installed on the inner side of the lower cover.

[0012] The utility model also includes other components that enable the filter device for chemical wastewater treatment to be used normally, and these devices or components all adopt conventional technical means in the field. In addition, the devices and components not limited in the utility model all adopt conventional technical means in the field, such as the motor in this application. In the specific implementation process, the appropriate device or component model can be selected according to the specific working scenario.

[0013] The working principle of the utility model is as follows: the strip-shaped convex structure is arranged around the filter screen, and the inner groove thereof is connected with the area to be filtered, which increases the filtering area on the one hand, and facilitates the entry of suspended matter into the groove on the other hand, reducing the chance of clogging of the filter screen. At the same time, the motor drives the spiral blade to rotate, and the spiral blade can continuously stir the sewage, speeding up the passage of sewage through the filter screen, thereby improving the filtering efficiency. When the filter screen needs to be cleaned, the lock and the lower cover are opened, and the filter screen is removed from the bottom for washing.

[0014] Compared with the prior art, the utility model has the following beneficial effects: reducing the risk of filter screen clogging, improving filtering efficiency, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a filtering device for treating chemical wastewater.

[0016] Figure 2 It is a structural schematic diagram of the filter screen of the present utility model.

[0017] In the figure: 1. Cylinder; 2. Lower cover; 21. Lock; 22. Lower annular groove; 23. Sealing ring; 3. Filter screen; 4. Strip-shaped convex structure; 5. Motor; 6. Spiral blades; 7. Water inlet pipe; 8. Water outlet pipe; 11. Area to be filtered; 12. Filtered area; 13. Upper annular groove. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Example:

[0020] like Figures 1-2 As shown, a filtering device for treating chemical wastewater comprises a cylinder 1, an inlet pipe 7 is provided at the upper end of the cylinder 1, and an outlet pipe 8 is provided at the lower end of the cylinder 1. The lower end of the cylinder 1 is open and a lower cover 2 is installed through a lock buckle 21. A conical filter screen 3 is installed in the cylinder 1, and the filter screen 3 divides the inside of the cylinder 1 into a to-be-filtered area 11 and a filtered area 12. A plurality of strip-shaped convex structures 4 are provided around the filter screen 3, and the inner grooves of the strip-shaped convex structures 4 are connected to the to-be-filtered area 11. A stirring structure is also provided in the filter screen 3. The inlet pipe 7 is connected to the to-be-filtered area 11.

[0021] Specifically, the stirring structure includes a motor 5 and a spiral blade 6. The motor 5 is fixed to the top of the cylinder 1. The power output shaft of the motor 5 rotates and extends into the cylinder 1 and is connected to a rotating shaft, on which the spiral blade 6 is installed. The lock buckle 21 includes a first connecting piece, a second connecting piece and a bolt. The first connecting piece is fixed to one side of the lower cover 2, and the second connecting piece is correspondingly fixed to the outer side of the cylinder 1. The first connecting piece and the second connecting piece are respectively provided with coaxial mounting holes, and bolts are installed in the mounting holes.

[0022] In addition, the strip-shaped convex structure 4 is arranged along the side edge of the filter screen 3. An upper annular groove 13 is arranged on the inner wall of the top of the cylinder 1, and a lower annular groove 22 is arranged on the upper end surface of the lower cover 2. The upper and lower ends of the filter screen 3 are respectively installed in the upper annular groove 13 and the lower annular groove 22. A sealing ring 23 is installed on the inner side of the lower cover 2.

[0023] The working principle of the filter device for treating chemical wastewater of the utility model is as follows: the strip-shaped convex structure 4 is arranged around the filter screen 3, and the inner groove thereof is connected with the to-be-filtered area 11, which increases the filtering area on the one hand, and facilitates the entry of suspended matter into the groove on the other hand, thereby reducing the chance of clogging of the filter screen 3. At the same time, the motor 5 drives the spiral blade 6 to rotate, and the spiral blade 6 can continuously stir the sewage, speeding up the passage of the sewage through the filter screen 3, thereby improving the filtering efficiency. When the filter screen 3 needs to be cleaned, the lock buckle 21 and the lower cover 2 are opened, and the filter screen 3 is removed from the bottom for washing.

[0024] The above embodiments are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope of the present invention.

Claims

1. A filtering device for treating chemical wastewater, comprising a cylinder (1), wherein the upper end of the cylinder (1) is provided with a water inlet pipe (7), and the lower end of the cylinder (1) is provided with a water outlet pipe (8), characterized in that: The lower end of the cylinder (1) is open and is provided with a lower cover (2) via a lock buckle (21). A conical filter screen (3) is provided inside the cylinder (1), and the filter screen (3) divides the interior of the cylinder (1) into a to-be-filtered area (11) and a filtered area (12). A plurality of strip-shaped convex structures (4) are provided around the filter screen (3), and the inner grooves of the strip-shaped convex structures (4) are connected to the to-be-filtered area (11). A stirring structure is also provided inside the filter screen (3); and the water inlet pipe (7) is connected to the to-be-filtered area (11).

2. The filter device for treating chemical wastewater according to claim 1, characterized in that: The stirring structure comprises a motor (5) and a spiral blade (6); the motor (5) is fixed to the top of the cylinder (1); a power output shaft of the motor (5) rotates and extends into the cylinder (1) and is connected to a rotating shaft; and the spiral blade (6) is installed on the rotating shaft.

3. The filter device for treating chemical wastewater according to claim 1, characterized in that: The strip-shaped outwardly convex structure (4) is arranged along the side edge of the filter screen (3).

4. The filter device for treating chemical wastewater according to claim 1, characterized in that: An upper annular groove (13) is provided on the inner wall of the top of the cylinder (1), a lower annular groove (22) is provided on the upper end surface of the lower cover (2), and the upper and lower ends of the filter screen (3) are respectively installed in the upper annular groove (13) and the lower annular groove (22).

5. The filter device for treating chemical wastewater according to claim 1, characterized in that: The lock buckle (21) includes a first connecting piece, a second connecting piece and a bolt, wherein the first connecting piece is fixed to one side of the lower cover (2), and the second connecting piece is correspondingly fixed to the outside of the cylinder (1), and the first connecting piece and the second connecting piece are respectively provided with coaxial mounting holes, and the bolts are installed in the mounting holes.

6. The filter device for treating chemical wastewater according to claim 1, characterized in that: A sealing ring (23) is installed on the inner side of the lower cover (2).

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