Surface scum removal device for a sedimentation tank

Abstract

The utility model relates to a kind of surface scum removing devices of sedimentation tank, it is characterized by: including sedimentation tank, the upper portion of the sedimentation tank is transversely provided with skimming tube, the both ends of the skimming tube are rotatably connected to the side wall of the sedimentation tank, the upper portion of the skimming tube is exposed to liquid level and is provided with a plurality of residue inlets, the upper portion of the sedimentation tank is provided with operating mechanism for controlling the rotation of the skimming tube, and the side wall of one side of the sedimentation tank is provided with residue discharge port which is connected to the corresponding end of the skimming tube.The utility model surface scum removing devices of sedimentation tank is reasonable in design, convenient and practical, the floating scum is automatically flowed in by controlling the rotation of the skimming tube, mechanical salvage is realized, the labor intensity is reduced, and workers are prevented from frequently entering dangerous environment.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment, and in particular to a device for removing scum from the surface of a sedimentation and separation tank. Background Technology

[0002] In sewage treatment ponds, solid sediments in the sewage settle to the bottom of the pond under the action of gravity. Floating matter, foam, and some floating sludge particles will float on the surface of the sedimentation pond. These floating objects need to be dredged by workers regularly, which is not only time-consuming and labor-intensive, but also ineffective and poses certain dangers. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a reasonably designed and convenient device for removing scum from the surface of a sedimentation and separation tank, so as to achieve mechanical sludge removal and reduce the intensity of manual labor.

[0004] This utility model is achieved by the following scheme: a scum removal device for the surface of a sedimentation separation tank, including a sedimentation separation tank, a scum skimming pipe horizontally placed at the top of the sedimentation separation tank, the two ends of the scum skimming pipe being rotatably connected to the side wall of the sedimentation separation tank, the top of the scum skimming pipe being exposed above the liquid surface and having several scum inlets, the top of the sedimentation separation tank being provided with an operating mechanism for controlling the rotation of the scum skimming pipe, and a scum discharge port connected to the corresponding end of the scum skimming pipe being opened on one side wall of the sedimentation separation tank.

[0005] Furthermore, the operating mechanism includes a fixed frame fixedly connected to the upper edge of the sedimentation separation tank. A sleeve arranged vertically is connected to the fixed frame. An operating rod is rotatably connected in the sleeve. The lower end of the operating rod extends to the vicinity of the skimming pipe. The lower part of the operating rod is threaded and fitted with a threaded sleeve that engages with the thread. A connecting plate is fixedly connected to the side of the threaded sleeve. A crank handle that is hinged to the connecting plate via a pin is fixedly connected to the lower part of the skimming pipe. A transverse elongated hole that engages with the pin is opened on the connecting plate.

[0006] Furthermore, the upper part of the fixed frame is provided with a transmission box, and a pair of meshing conical wheels are provided inside the transmission box. The power input end of the transmission box is connected to a handwheel, and the power output end of the transmission box is connected to the upper end of the operating lever.

[0007] Furthermore, the sedimentation separation tank has sleeves fixedly connected to both sides of the slag skimmer, the ends of the slag skimmer extending into the sleeves and rotating and sealing with them, and the slag discharge port connecting to the slag skimmer through the sleeves on the corresponding side walls.

[0008] Furthermore, the slag discharge port is connected to an outwardly extending slag discharge pipe.

[0009] Furthermore, it also includes a lifting support mechanism for supporting the slag discharge pipe; the lifting support mechanism includes a pair of angle steels located on both sides of the slag discharge pipe, and an upper support plate and a lower support plate located above and below the slag discharge pipe are connected between the two angle steels. The lower part of the upper support plate and the upper part of the lower support plate are provided with arc-shaped grooves that are consistent with the contour of the slag discharge pipe. Rollers that are attached to the slag discharge pipe are rotatably connected in the arc-shaped grooves.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The surface scum removal device of the sedimentation separation tank of the present invention is reasonably designed, convenient and practical. By controlling the rotation of the skimming pipe, the scum flows in automatically, the scum cleaning effect is good, and mechanical retrieval is realized, which reduces the intensity of manual labor and avoids workers from frequently entering dangerous environments.

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model; Figure 2 yes Figure 1 Sectional view of AA; Figure 3 yes Figure 1 BB section view; Figure 4 This is a schematic diagram showing the position of the skimming tube relative to the liquid surface in an embodiment of this utility model; The following are the labels in the diagram: 100-Sedimentation separation tank, 110-Slag discharge port, 120-Shell, 130-Slag discharge pipe, 200-Slag skimming pipe, 210-Slag inlet, 220-Handle, 230-Blocking ring, 300-Operating mechanism, 310-Fixed frame, 320-Sleeve, 330-Operating lever, 340-Threaded sleeve, 341-Connecting plate, 350-Transmission box, 360-Handwheel, 400-Lifting support mechanism, 410-Angle steel, 420-Upper support plate, 430-Lower support plate, 440-Roller. Detailed Implementation

[0013] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0014] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0015] like Figures 1-4 As shown, a scum removal device for a sedimentation separation tank includes a sedimentation separation tank 100. A skimming pipe 200 is horizontally placed at the top of the sedimentation separation tank. The two ends of the skimming pipe 200 are rotatably connected to the side wall of the sedimentation separation tank. The upper part of the skimming pipe protrudes above the liquid surface and has several scum inlets 210. The upper part of the sedimentation separation tank is provided with an operating mechanism 300 for controlling the rotation of the skimming pipe. A scum discharge port 110 is opened on one side wall of the sedimentation separation tank 100, which connects to the corresponding end of the skimming pipe. When scum removal is not required, the scum inlets 210 are rotated to the top, and the liquid level is lower than the height of the scum inlets 210. At this time, scum will not enter the skimming pipe. When there is a large amount of scum in the sedimentation tank that needs to be cleaned, the skimming pipe is rotated at a certain angle by the operating mechanism 300, so that the scum inlet 210 of the skimming pipe is slightly lower than the liquid level. The scum on the liquid surface will enter the scum inlet 210 with the sewage, and then flow with the sewage towards the scum outlet in the skimming pipe, and finally be discharged from the scum outlet. This device achieves automatic scum inflow by controlling the rotation of the skimming pipe, resulting in good scum cleaning effect, reducing manual labor intensity, and avoiding frequent entry of workers into hazardous environments.

[0016] In this embodiment, the operating mechanism 300 includes a fixed frame 310 fixedly connected to the upper edge of the sedimentation separation tank. A sleeve 320 arranged vertically is connected to the fixed frame. An operating rod 330 is rotatably connected in the sleeve. The lower end of the operating rod extends to the vicinity of the skimming pipe. The lower part of the operating rod is threaded and fitted with a threaded sleeve 340. A connecting plate 341 is fixedly connected to the side of the threaded sleeve. A crank 220 hinged to the connecting plate via a pin is fixedly connected to the lower part of the skimming pipe. A transverse elongated hole that mates with the pin is opened on the connecting plate.

[0017] In this embodiment, a transmission box 350 is provided on the upper part of the fixed frame. A pair of meshing conical wheels are provided inside the transmission box. A handwheel 360 is connected to the power input end of the transmission box, and a power output end is connected to the upper end of the operating lever. The worker rotates the handwheel, which in turn drives the operating lever to rotate via the transmission box, causing the screw sleeve to move upwards or downwards. This, in turn, drives the skimming pipe to rotate via the crank handle, adjusting the angle of the skimming pipe and ultimately achieving height adjustment of the slag inlet 210.

[0018] In this embodiment, sleeves 120 located at both ends of the skimming pipe are fixedly connected to the side walls of the sedimentation separation tank. The end of the skimming pipe extends into the sleeve and is rotated and sealed with it. The slag discharge port is connected to the skimming pipe through the sleeve on the corresponding side wall. The sleeve is fixedly connected to the side wall of the sedimentation separation tank by a flange.

[0019] In this embodiment, the outer periphery of both ends of the skimming pipe is provided with retaining rings 230 near the end face of the casing to limit the axial displacement of the skimming pipe.

[0020] In this embodiment, the slag discharge port is connected to an outwardly extending slag discharge pipe 130.

[0021] In this embodiment, a lifting support mechanism 400 for supporting the slag-skimming pipe is also included. The lifting support mechanism 400 includes a pair of angle steels 410 located on both sides of the slag-skimming pipe. An upper support plate 420 and a lower support plate 430 located above and below the slag-skimming pipe are connected between the two angle steels. The upper support plate 420 and the lower support plate 430 are welded to the angle steels. The upper part of the angle steels 410 is fixedly connected to a concrete component above the sedimentation separation tank. The lower part of the upper support plate and the upper part of the lower support plate are provided with arc-shaped grooves that conform to the contour of the slag-skimming pipe. Rollers 440 that are attached to the slag-skimming pipe are rotatably connected in the arc-shaped grooves. The number of lifting support mechanisms 400 is set according to the length of the slag-skimming pipe to avoid deformation due to insufficient support in the middle section as the slag-skimming pipe grows. Generally, one lifting support mechanism 400 is set every 2 to 4 meters.

[0022] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0023] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0024] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0025] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A device for removing scum from the surface of a sedimentation separation tank, characterized in that: The system includes a sedimentation separation tank, with a skimming pipe horizontally placed at the top. The two ends of the skimming pipe are rotatably connected to the side wall of the sedimentation separation tank. The top of the skimming pipe protrudes above the liquid surface and has several slag inlets. The upper part of the sedimentation separation tank is equipped with an operating mechanism for controlling the rotation of the skimming pipe. A slag discharge port that connects to the corresponding end of the skimming pipe is opened on one side wall of the sedimentation separation tank.

2. The scum removal device for the sedimentation separation tank surface according to claim 1, characterized in that: The operating mechanism includes a fixed frame fixedly connected to the upper edge of the sedimentation separation tank. A sleeve arranged vertically is connected to the fixed frame. An operating rod is rotatably connected to the sleeve. The lower end of the operating rod extends to the vicinity of the skimming pipe. The lower part of the operating rod is threaded and fitted with a threaded sleeve that engages with the thread. A connecting plate is fixedly connected to the side of the threaded sleeve. A crank handle that is hinged to the connecting plate via a pin is fixedly connected to the lower part of the skimming pipe. A transverse elongated hole that engages with the pin is opened on the connecting plate.

3. The scum removal device for the sedimentation separation tank surface according to claim 2, characterized in that: The upper part of the fixed frame is equipped with a transmission box, and a pair of meshing conical wheels are provided inside the transmission box. The power input end of the transmission box is connected to a handwheel, and the power output end of the transmission box is connected to the upper end of the operating lever.

4. The scum removal device for the sedimentation separation tank surface according to claim 1, characterized in that: The sedimentation separation tank has sleeves fixedly connected to both sides of the slag skimmer. The ends of the slag skimmer extend into the sleeves and are rotated and sealed with them. The slag discharge port is connected to the slag skimmer through the sleeves on the corresponding side walls.

5. The scum removal device for the sedimentation separation tank surface according to claim 4, characterized in that: The slag discharge port is connected to an outwardly extending slag discharge pipe.

6. The scum removal device for the sedimentation separation tank surface according to claim 1, characterized in that: It also includes a lifting support mechanism for supporting the slag discharge pipe; the lifting support mechanism includes a pair of angle steels located on both sides of the slag discharge pipe, and an upper support plate and a lower support plate located above and below the slag discharge pipe are connected between the two angle steels. The lower part of the upper support plate and the upper part of the lower support plate are provided with arc-shaped grooves that are consistent with the contour of the slag discharge pipe. Rollers that are attached to the slag discharge pipe are rotatably connected in the arc-shaped grooves.

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