Skimming device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a skimming device for sewage treatment, which comprises a treatment box, two mounting plates are slidably connected between two opposite inner walls of the treatment box, a connecting shaft is rotatably connected between the two mounting plates, a motor 7 is mounted on the side wall of one mounting plate 5, and the other mounting plate 5 is mounted on the side wall of the other mounting plate 5. And an output shaft of the motor 7 penetrates through one of the mounting plates 5 and is fixedly connected with one end of the connecting shaft 8. According to the skimming device for sewage treatment, four filter screens with different mesh sizes are clamped on a rotating connecting shaft at equal intervals, so that particles and floating objects floating on sewage in a treatment box in different sizes can be fished, and movable positioning keys can be stably clamped with positioning grooves through elastic force of stretching of positioning springs; therefore, the mounting frame and the filter screen can be stably fixed to the connecting shaft, meanwhile, the mounting frame and the filter screen can be conveniently detached from the connecting shaft to be cleaned and maintained, and the situation that meshes are blocked can be effectively avoided.

Description

Technical Field

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

[0002] Wastewater treatment is the process of purifying sewage until it reaches the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] In the process of sewage treatment, sewage is often mixed with a lot of residues. Existing sewage treatment operations usually use filters to remove impurities and filter sewage. The filters are easy to be clogged when working for a long time, and impurities of different sizes cannot be treated in layers, which reduces the accuracy of impurity treatment. The treated sewage still has a lot of impurities. Therefore, a skimming device for sewage treatment is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a skimming device for sewage treatment, which has the advantages of easy disassembly and assembly of the filter screen and salvage of impurities of different sizes, thereby solving the problem that the filter screen of the skimming device is easily clogged and impurities of different sizes cannot be salvaged.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of facilitating the disassembly and assembly of the filter screen and the salvage of impurities of different sizes, the utility model provides the following technical solutions:

[0008] A skimming device for sewage treatment comprises a treatment box, two mounting plates are slidably connected between two opposite inner walls of the treatment box, a connecting shaft is rotatably connected between the two mounting plates, a motor is mounted on the side wall of one of the mounting plates, the output shaft of the motor passes through one of the mounting plates and is fixedly connected to one end of the connecting shaft, four mounting frames are equidistantly clamped on the side wall of the connecting shaft, filter screens are fixedly installed inside the four mounting frames, the mesh sizes of the four filter screens are all different, and the filter screen at the bottom of the connecting shaft extends below the sewage liquid level of the treatment box.

[0009] As a preferred technical solution of the utility model, a slide bar is horizontally installed between two opposite inner parts of the processing box, and an electric slide sleeve is slidably connected to the slide bar, wherein the mounting plate is fixedly installed on the electric slide sleeve.

[0010] As a preferred technical solution of the utility model, a mounting groove is provided on the side wall of the connecting shaft, and the mounting frame is clamped on the side wall of the connecting shaft through the mounting groove.

[0011] As a preferred technical solution of the utility model, positioning grooves are provided on the two opposite side walls of the installation groove, and positioning keys are fixedly and movably installed on the two separated side walls of the installation frame, wherein the two positioning keys are respectively engaged with the two positioning grooves.

[0012] As a preferred technical solution of the utility model, an elastic component is arranged on one of the side walls of the installation frame, and the movable positioning key is installed on the elastic component.

[0013] As a preferred technical solution of the utility model, the elastic component includes a spring groove opened on one of the side walls of the installation frame, a positioning spring installed inside the spring groove, and a limit plate installed on the positioning spring, wherein the movable positioning key is fixedly installed on the limit plate.

[0014] As a preferred technical solution of the utility model, a spiral blade is rotatably connected to the inner bottom wall of the processing box.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a slag skimming device for sewage treatment, which has the following beneficial effects:

[0017] The skimming device for sewage treatment has four filter screens with different mesh sizes equidistantly connected on a rotating connecting shaft, so that particles and floating objects of different sizes floating on the sewage in the treatment box can be salvaged, and the elastic force of the extended positioning spring enables the movable positioning key to be stably connected with the positioning groove, so that the installation frame and the filter screen can be stably fixed on the connecting shaft, and at the same time, it is also convenient to disassemble the installation frame and the filter screen from the connecting shaft for cleaning and maintenance, thereby effectively avoiding the clogging of the mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view cross-sectional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a top view and cross-section of the structure of the utility model;

[0020] Figure 3 The utility model structure Figure 2 A partial enlarged schematic diagram of part A is shown.

[0021] In the figure: 1. treatment box; 2. spiral blade; 3. slide rod; 4. filter screen; 5. mounting plate; 6. electric slide sleeve; 7. motor; 8. connecting shaft; 9. mounting frame; 10. mounting slot; 11. spring slot; 12. positioning spring; 13. limit plate; 14. positioning key; 15. positioning slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in 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 in 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.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-3A slag skimming device for sewage treatment comprises a treatment box 1, wherein two mounting plates 5 are slidably connected between two opposite inner walls of the treatment box 1, wherein a slide bar 3 is transversely installed between two opposite inner parts of the treatment box 1, and an electric sliding sleeve 6 is slidably connected to the sliding bar 3, wherein the mounting plate 5 is fixedly installed on the electric sliding sleeve 6, so that the two mounting plates 5 can slide transversely above the treatment box 1, and a connecting shaft 8 is rotatably connected between the two mounting plates 5, wherein bearings are installed on the adjacent side walls of the two mounting plates 5, and both ends of the connecting shaft 8 penetrate into the inside of the two bearings, and a motor 7 is installed on the side wall of one of the mounting plates 5, and the output shaft of the motor 7 passes through one of the mounting plates 5 and is fixedly connected to one end of the connecting shaft 8, so that the connecting shaft 8 can be driven to rotate automatically by the rotation of the output shaft of the motor 7, and the side wall of the connecting shaft 8 is provided with a plurality of bearings. There are four mounting frames 9 connected by a card, and filter screens 4 are fixedly installed inside the four mounting frames 9. The mesh sizes of the four filter screens 4 are different. The filter screen 4 at the bottom of the connecting shaft 8 extends below the sewage liquid level of the treatment box 1, so that the mounting frame 9 and the filter screen 4 can rotate automatically by the connecting shaft 8 to salvage the particles and floating objects floating on the liquid surface. The effect of salvaging floating objects of different sizes is achieved by the different mesh sizes. The side wall of the connecting shaft 8 is provided with a mounting groove 10, and the mounting frame 9 is connected to the side wall of the connecting shaft 8 through the mounting groove 10, so that the mounting frame 9 and the filter screen 4 can be easily disassembled and installed from the connecting shaft 8, and then the filter screen 4 is cleaned and replaced, thereby effectively preventing the filter screen 4 from being blocked and affecting the salvage effect.

[0026] In this embodiment, positioning grooves 15 are provided on the two opposite side walls of the installation groove 10, and positioning keys 14 are fixedly and movably installed on the two separated side walls of the installation frame 9, wherein the two positioning keys 14 are respectively engaged with the two positioning grooves 15. By engaging the two positioning keys 14 with the two positioning grooves 15, the installation frame 9 can be stably fixed on the side wall of the connecting shaft 8.

[0027] In this embodiment, an elastic component is provided on one of the side walls of the installation frame 9, and a movable positioning key 14 is installed on the elastic component, wherein the elastic component includes a spring groove 11 opened on one of the side walls of the installation frame 9, a positioning spring 12 installed inside the spring groove 11, and a limit plate 13 installed on the positioning spring 12, wherein the movable positioning key 14 is fixedly installed on the limit plate 13, so that the positioning key 14 can be driven to move toward one of the positioning grooves 15 through the elastic force of the extended positioning spring 12 until it is engaged with one of the positioning grooves 15, thereby achieving the effect of fixing the installation frame 9 on the side wall of the connecting shaft 8. When the filter screen 4 needs to be removed, the filter screen 4 can be moved toward the side of the movable positioning key 14, and the side of the fixed positioning key 14 can be pulled out from the positioning groove 15, so that the installation frame 9 can be removed from the connecting shaft 8 as a whole, thereby achieving the effect of facilitating the installation and removal of the filter screen 4.

[0028] In this embodiment, a spiral blade 2 is rotatably connected to the inner bottom wall of the treatment box 1. The rotating spiral blade 2 can effectively prevent the floating particles from settling quickly, so that the particles can float on the upper layer of the sewage as much as possible, so that they can be salvaged by the filter net 4, thereby improving the salvage efficiency.

[0029] Working principle: Start the motor 7 to make the connecting shaft 8 rotate automatically, and then make the four mounting frames 9 and the four filter screens 4 rotate automatically, so that the particles of different sizes floating in the sewage can be salvaged by rotating the four filter screens 4 with different mesh sizes. When more particles are salvaged on the filter screen 4, the two electric sliding sleeves 6 can be started to move the mounting plate 5 and the connecting shaft 8 to the edge of the treatment box 1. The filter screen 4 can be moved toward the side of the movable positioning key 14 and the side of the fixed mounting positioning key 14 can be pulled out from the positioning groove 15, so that the mounting frame 9 can be removed from the connecting shaft 8 as a whole, thereby facilitating the cleaning and maintenance of the filter screen 4. When the maintenance is completed, the fixed positioning key 14 is first inserted into the positioning groove 15, and then the movable positioning key 14 is pressed toward the inside of the mounting frame 9, and the mounting frame 9 is completely inserted into the mounting groove 10. The movable positioning key 14 will automatically engage with the positioning groove 15 through the elastic force of the positioning spring 12, thereby achieving the effect of installing the filter screen 4.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A skimming device for sewage treatment, comprising a treatment box (1), characterized in that: Two mounting plates (5) are slidably connected between two opposite inner walls of the treatment box (1); a connecting shaft (8) is rotatably connected between the two mounting plates (5); a motor (7) is mounted on the side wall of one of the mounting plates (5); an output shaft of the motor (7) passes through one of the mounting plates (5) and is fixedly connected to one end of the connecting shaft (8); four mounting frames (9) are equidistantly connected to the side wall of the connecting shaft (8); a filter screen (4) is fixedly mounted inside each of the four mounting frames (9); the mesh sizes of the four filter screens (4) are different; the filter screen (4) at the bottom of the connecting shaft (8) extends below the sewage level of the treatment box (1).

2. A slag skimmer for sewage treatment according to claim 1, characterized in that: A sliding rod (3) is transversely installed between two opposite inner parts of the processing box (1), and an electric sliding sleeve (6) is slidably connected to the sliding rod (3), wherein the mounting plate (5) is fixedly installed on the electric sliding sleeve (6).

3. A slag skimmer for sewage treatment according to claim 1, characterized in that: A mounting groove (10) is provided on the side wall of the connecting shaft (8), and the mounting frame (9) is clamped on the side wall of the connecting shaft (8) through the mounting groove (10).

4. A slag skimmer for sewage treatment according to claim 3, characterized in that: Positioning grooves (15) are provided on two opposite side walls of the installation groove (10), and positioning keys (14) are respectively fixedly and movably installed on two separated side walls of the installation frame (9), wherein the two positioning keys (14) are respectively engaged with the two positioning grooves (15).

5. A slag skimmer for sewage treatment according to claim 4, characterized in that: An elastic component is arranged on one of the side walls of the installation frame (9), and the movable positioning key (14) is installed on the elastic component.

6. A slag skimmer for sewage treatment according to claim 5, characterized in that: The elastic component comprises a spring groove (11) formed on one of the side walls of the installation frame (9), a positioning spring (12) installed in the spring groove (11), and a limiting plate (13) installed on the positioning spring (12), wherein a movable positioning key (14) is fixedly mounted on the limiting plate (13).

7. A slag skimmer for sewage treatment according to claim 1, characterized in that: A spiral blade (2) is rotatably connected to the inner bottom wall of the processing box (1).

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