Scum scraping mechanism for sedimentation tank

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a settling pond scum scraping mechanism, which comprises a spiral conveyer, a plurality of scrapers and a scum baffle, the spiral conveyer is positioned at the bottom of a settling pond, the scrapers are mounted on a circulating motion mechanism, and the scum baffle is mounted on one side of a water outlet of the settling pond. According to the utility model, scum is scraped by the scraping plate in a circulating motion mode, so that the scraping effect and the scraping efficiency of the scum are improved; the scraping plate can move according to a set track to scrape slag through the guide mechanism, and deviation of the scraping plate in the moving process is prevented; and the scum baffle is arranged at the water outlet of the sedimentation tank and is used for intercepting scum at the water outlet and preventing the scum from entering the next process.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sedimentation tank scum scraping mechanism. Background Art

[0002] The sedimentation tank of a sewage treatment plant is used to precipitate impurities in sewage. The sewage entering the sedimentation tank contains a large amount of scum, which cannot settle to the bottom of the tank. Therefore, it is necessary to provide a scum scraping mechanism for the sedimentation tank to scrape off the scum of the sewage in the sedimentation tank. Utility Model Content

[0003] The utility model solves the problems in the related technology and proposes a sedimentation tank scum scraping mechanism, in which a scraper is driven by a transmission mechanism to move along a frame structure formed by the transmission mechanism, thereby scraping scum in the wastewater and conveying it out of the sedimentation tank through a screw conveyor.

[0004] In order to solve the above technical problems, the utility model is realized through the following technical scheme: a sedimentation tank scum scraping mechanism, including a screw conveyor, a scraper, and a scum baffle, the screw conveyor is located at the bottom of the sedimentation tank, a plurality of the scrapers are installed on a circulating motion mechanism, and the scum baffle is installed on one side of the sedimentation tank outlet.

[0005] As a preferred solution, it also includes a water inlet baffle, which is located at one side of the sedimentation tank and forms a water inlet space with the inner wall of the sedimentation tank.

[0006] As a preferred solution, the cyclic motion mechanism includes a driving mechanism and a transmission mechanism of a frame structure, and the transmission mechanism performs cyclic motion under the drive of the driving mechanism.

[0007] As a preferred solution, the transmission mechanism is a sprocket drive and includes a transmission chain, a sprocket and a transmission shaft. The sprocket is mounted on the transmission shaft, and the scraper is mounted on the transmission chain through a mounting seat.

[0008] As a preferred solution, both ends of a plurality of the transmission shafts are mounted on the inner wall of the sedimentation tank through bearing assemblies to form a frame structure.

[0009] As a preferred embodiment, it also includes a guide mechanism, which includes a first guide bar and a second guide bar, the first guide bar is installed at the bottom of the sedimentation tank, the second guide bar is installed at the top of the sedimentation tank, and the scraper is slidably matched with the first guide bar and the second guide bar.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the scraper of the utility model adopts a cyclic motion to scrape off the scum, thereby improving the scraping effect and efficiency of the scum; the guide mechanism enables the scraper to move along a predetermined trajectory to scrape off the scum, thereby preventing it from deviating during the movement; a scum baffle is installed at the water outlet of the sedimentation tank to intercept the scum at the water outlet and prevent the scum from entering the next process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] In the figure: 1. leather screw conveyor, 2. scraper, 3. scum baffle, 4. sedimentation tank, 5. transmission mechanism, 51. transmission chain, 52. sprocket, 53. transmission shaft, 54. bearing assembly, 6. water inlet baffle, 71. first guide bar, 72. second guide bar, 8. walkway. DETAILED DESCRIPTION

[0013] 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0015] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0016] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0017] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0018] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0019] like Figure 1 As shown, a sedimentation tank scum scraping mechanism includes a screw conveyor 1, a scraper 2, and a scum baffle 3. The screw conveyor 1 is located at the bottom of the sedimentation tank 4. Several scrapers 2 are installed on a circulating motion mechanism so that the scraper 2 can scrape the scum in a circulating motion. The scum baffle 4 is installed on one side of the water outlet of the sedimentation tank 4 to intercept the scum at the water outlet to prevent the scum from entering the next process.

[0020] In one embodiment, a water inlet baffle 6 is further included. The water inlet baffle 6 is located at one side of the water inlet in the sedimentation tank 4 and forms a water inlet space with the inner wall of the sedimentation tank 4 .

[0021] In one embodiment, the cyclic motion mechanism includes a driving mechanism and a transmission mechanism 5 of a frame structure, and the transmission mechanism 5 cyclically moves under the drive of the driving mechanism, wherein the driving mechanism may be a motor.

[0022] In one embodiment, the transmission mechanism 5 is a sprocket transmission, including a transmission chain 51, a sprocket 52 and a transmission shaft 53. The sprocket 52 is installed on the transmission shaft 53, and the scraper 2 is installed on the transmission chain 51 through a mounting seat. The driving mechanism drives the transmission shaft 53 to rotate and then drives the sprocket 52 to rotate, so that the transmission chain 51 drives the scraper 2 thereon to move with the transmission chain 51, thereby scraping off the scum in the water. When the scraper 2 moves to the screw conveyor 1, the screw conveyor 1 transports the scum out.

[0023] In one embodiment, the two ends of a plurality of transmission shafts 53 are installed on the inner wall of the sedimentation tank 4 through a bearing assembly 54 to form a frame structure, wherein the bearing assembly 54 includes a bearing and a bearing seat, and bearings are installed at both ends of the transmission shaft 53, the bearings are installed on the bearing seat, and the bearing seat is fixed to the inner wall of the sedimentation tank 4. In this embodiment, the transmission shaft 53 is surrounded by a right-angled trapezoidal shape.

[0024] In one embodiment, a guiding mechanism is also included, which includes a first guide bar 71 and a second guide bar 72. The first guide bar 71 is installed at the bottom of the sedimentation tank 4, and the second guide bar 72 is installed at the top of the sedimentation tank 4. The scraper 4 slides with the first guide bar 71 and the second guide bar 42. Specifically, a groove matching the shape of the first guide bar 71 is provided on the scraper 2, and the two ends of the scraper are stepped to adapt to the shape of the second guide bar 72. The guiding mechanism can enable the scraper 4 to move along a predetermined trajectory to scrape the residue to prevent it from deviating during the movement.

[0025] In addition, a walkway 8 is provided at the top of the sedimentation tank 4 , and guardrails are installed on both sides of the walkway 8 .

[0026] The above are preferred implementation modes of the present invention. Technicians in the field to which the present invention belongs can also change and modify the above implementation modes. Therefore, the present invention is not limited to the above specific implementation modes. Any obvious improvements, substitutions or modifications made by technicians in this field on the basis of the present invention belong to the protection scope of the present invention.

Claims

1. A sedimentation tank scum scraping mechanism, characterized in that: It comprises a screw conveyor, a scraper and a scum baffle. The screw conveyor is located at the bottom of a sedimentation tank. A plurality of scrapers are installed on a circulating motion mechanism. The scum baffle is installed on one side of a water outlet of the sedimentation tank.

2. The sedimentation tank scum scraping mechanism according to claim 1, characterized in that: It also includes a water inlet baffle, which is located at one side of the sedimentation tank and forms a water inlet space with the inner wall of the sedimentation tank.

3. The sedimentation tank scum scraping mechanism according to claim 1, characterized in that: The cyclic motion mechanism comprises a driving mechanism and a transmission mechanism of a frame structure, and the transmission mechanism performs cyclic motion under the driving of the driving mechanism.

4. The sedimentation tank scum scraping mechanism according to claim 3 is characterized in that: The transmission mechanism is a sprocket transmission and comprises a transmission chain, a sprocket and a transmission shaft. The sprocket is mounted on the transmission shaft, and the scraper is mounted on the transmission chain through a mounting seat.

5. The sedimentation tank scum scraping mechanism according to claim 4, characterized in that: Both ends of a plurality of transmission shafts are installed on the inner wall of the sedimentation tank through bearing assemblies to form a frame structure.

6. The sedimentation tank scum scraping mechanism according to claim 1, characterized in that: It also includes a guide mechanism, which includes a first guide bar and a second guide bar. The first guide bar is installed at the bottom of the sedimentation tank, and the second guide bar is installed at the top of the sedimentation tank. The scraper is slidably matched with the first guide bar and the second guide bar.

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