Sedimentation tank with self-cleaning function

Abstract

The utility model discloses a sedimentation tank with a self-cleaning function, which comprises a sedimentation tank and a driving mechanism arranged in the middle of the sedimentation tank, the driving mechanism is connected with a driving rod for driving scum and foam, and the end part of the driving rod is provided with a cleaning component which automatically rotates along with the driving rod. The cleaning assembly comprises a side surface cleaning brush arranged on the side surface of the sedimentation tank and a top cleaning brush arranged on the top of the sedimentation tank. The cleaning assembly is arranged at the end of the driving rod and comprises the side face cleaning brush and the top cleaning brush, so that when the driving rod rotates, the cleaning assembly can be driven to rotate to clean the top and the side face flowing through the sedimentation tank, manual regular cleaning is not needed, and the labor cost and the labor intensity are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical production sewage treatment, specifically relates to a sedimentation tank with self -cleaning function. BACKGROUND

[0002] The sewage sedimentation tank is an important structure in the sewage treatment system, which realizes solid-liquid separation through gravity settling principle. The conventional sedimentation tank is usually provided with an inner and outer double overflow weir structure. Specifically, an inner weir wall and an outer weir wall arranged in a ring shape are arranged inside the containing cavity, an intermediate collecting tank is formed between the two weir walls, and a water outlet of the outer weir wall is communicated with the intermediate tank to form a water outlet channel. During operation, the treated water flows through the sedimentation zone first over the inner weir wall into the intermediate tank, and then is discharged through the water outlet of the outer weir wall.

[0003] Since the inner weir wall bears the flow guiding function of the water flow over the weir top for a long time, the weir top plane and the outer side surface are continuously exposed to the sewage environment containing suspended matter. Under the action of fluid mechanics, colloidal substances and fine particles in the sewage are prone to deposit in the flow boundary layer on the weir top, and the influence of the surface tension of the water-air interface causes the formation of a stubborn dirt layer on the upper end surface of the weir body. More seriously, the outer side surface is continuously infiltrated by the water film containing suspended matter, which forms a composite dirt composed of microbial membrane and organic matter. The accumulation of these pollutants not only reduces the effective flow section of the weir body and affects the uniformity of the effluent, but also may cause secondary pollution.

[0004] The existing solution mainly relies on periodic manual cleaning, but manual climbing and cleaning has safety hazards, high labor intensity, low efficiency, and frequent manual maintenance significantly increases the operation and maintenance cost. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a sedimentation tank with self-cleaning function, which solves the problem that the flow guiding surface of the sedimentation tank is prone to form dirt and needs to be cleaned periodically by manual labor, and the manual cleaning has high labor intensity, low efficiency and high cost.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A sedimentation tank with self-cleaning function, comprising a sedimentation tank and a driving mechanism arranged in the middle of the sedimentation tank, a driving rod for driving floating sludge and foam is connected to the driving mechanism, a cleaning assembly is arranged at the end of the driving rod and rotates automatically with the driving rod, the cleaning assembly comprises a side cleaning brush arranged on the side of the sedimentation tank, and a top cleaning brush arranged on the top of the sedimentation tank.

[0008] By adopting the structural design, the end of the driving rod is provided with the cleaning assembly, the cleaning assembly comprises the side cleaning brush and the top cleaning brush, therefore, when the driving rod rotates, the cleaning assembly can be driven to rotate to clean the top and the side of the sedimentation tank, and manual cleaning is not needed.

[0009] Preferably, the sedimentation tank comprises an internal containing cavity, the containing cavity is provided with an inner weir wall and an outer weir wall, and an intermediate groove is arranged between the inner weir wall and the outer weir wall, a water outlet is arranged on the outer weir wall and communicates with the intermediate groove, and the cleaning assembly is arranged at the position of the inner weir wall, wherein the side cleaning brush is in contact with the outer side of the inner weir wall, and the top cleaning brush is in contact with the top of the inner weir wall.

[0010] By adopting the structural design, according to the weir turning and sedimentation principle, the top and the side of the inner weir wall serve as the flow guide surface, and when the cleaning assembly rotates with the driving rod, the side cleaning brush automatically cleans the side, and the top cleaning brush automatically cleans the top.

[0011] Preferably, the top of the inner weir wall is provided with a filter element, and the upper end of the filter element is sawtooth-shaped.

[0012] By adopting the structural design, most of the floating dregs can be filtered.

[0013] Preferably, the cleaning assembly further comprises a connecting rod, one end of the connecting rod is welded and fixed to the end of the driving rod, and the other end of the connecting rod is detachably provided with the side cleaning brush and the top cleaning brush.

[0014] By adopting the structural design, the side cleaning brush and the top cleaning brush are detachably designed, which facilitates regular replacement and guarantees the cleaning effect.

[0015] Preferably, a first mounting hole is vertically and penetratingly arranged in the free end of the connecting rod, a second mounting hole is horizontally and penetratingly arranged in the free end of the connecting rod, the upper end of the side cleaning brush is provided on the connecting rod by penetrating the second mounting hole and the side cleaning brush through a bolt, the top of the side cleaning brush is connected with the free end of the connecting rod through a first spring, a second spring is arranged at the middle position of the side cleaning brush and connected with the connecting rod, the first spring and the second spring form opposite pulling forces, and the pulling forces on both sides are the same.

[0016] By adopting the structural design, the mounting mode of the side cleaning brush is convenient for dismounting, and the first spring and the second spring arranged in opposite directions can make the side cleaning brush have a certain activity when rotating to clean the outer side of the inner weir wall, so that the side cleaning brush can be self-adaptively adjusted at irregular positions.

[0017] Preferably, the lower end of the connecting rod is provided with a mounting portion, and a strip-shaped third mounting hole is arranged on the mounting portion, and the top cleaning brush is fixedly connected with the mounting portion through the third mounting hole.

[0018] With the above structure, the top cleaning brush can be replaced, and the height of the cleaning brush can be adjusted according to the cleaning effect.

[0019] Preferably, the lower end of the driving mechanism is provided with a scraping assembly, the scraping assembly comprises a mounting beam and scraping plates arranged at two ends of the mounting beam, and the middle part of the sedimentation tank is provided with a sewage outlet.

[0020] With the above structure, when the scraping assembly is uniformly rotated by the starting mechanism, the sludge deposited at the bottom of the sedimentation tank can be automatically cleaned.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1、 the utility model discloses a cleaning assembly is arranged at the end of the driving rod, and the cleaning assembly comprises a side cleaning brush and a top cleaning brush, so that when the driving rod rotates, the cleaning assembly can be rotated to clean the top and the side of the sedimentation tank, manual cleaning is not needed, and the labor cost and labor intensity are reduced.

[0023] 2、 the side cleaning brush of the utility model is fixedly connected with the connecting rod through the first spring and the second spring arranged in opposite directions, so that the side cleaning brush has a certain activity when rotating and cleaning the outer side of the weir wall, and the side cleaning brush can be self-adaptively adjusted in an irregular position.

[0024] 3、 the driving rod, the cleaning assembly and the scraping assembly of the utility model are driven to rotate by the same driving mechanism, so that the equipment can be simplified, and the cost can be reduced. DETAILED DESCRIPTION

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is Figure 1 the enlarged view of A in the middle part;

[0027] Figure 3 It is Figure 1 the structural schematic view of the cleaning assembly.

[0028] In the drawing:

[0029] Sedimentation tank 1, containing cavity 1a, inner weir wall 1b, outer weir wall 1c, intermediate groove 1d, water outlet 1e, sewage outlet 1f, driving mechanism 2, driving rod 3, cleaning assembly 4, side cleaning brush 4a, top cleaning brush 4b, connecting rod 4c, first mounting hole 4d, second mounting hole 4e, first spring 4f, second spring 4g, mounting portion 4h, third mounting hole 4i, filter 5, scraping assembly 6, mounting beam 6a, scraping plate 6b, channel 7. DETAILED DESCRIPTION

[0030] To make the technical content, structural features, purposes and effects of the present application clear, the following will be described in detail in combination with embodiments and the accompanying drawings.

[0031] The technical solutions of the present application will be described clearly and completely in combination with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] Please refer to 1, Figure 2 and Figure 3 A sedimentation tank with a self-cleaning function, comprising a sedimentation tank 1 and a driving mechanism 2 arranged in the middle of the sedimentation tank 1, the sedimentation tank 1 comprising an internal containing cavity 1a, the containing cavity 1a being provided with an inner weir wall 1b and an outer weir wall 1c, and an intermediate groove 1d being arranged between the inner weir wall 1b and the outer weir wall 1c, and a water outlet 1e being formed in the outer weir wall 1c and communicating with the intermediate groove 1d. The inner weir wall 1b is provided with a filter 5 at the top, and the upper end of the filter 5 is arranged in a sawtooth shape. When the water in the sedimentation tank 1 is full, the water flows over the weir from the filter 5, and the filter 5 can filter out the scum in the sedimentation tank 1.

[0033] The driving mechanism 2 is connected with a driving rod 3 for driving away the scum and foam, wherein the driving rod 3 is driven to rotate by the driving mechanism 2, the driving rod 3 is located at the water surface in the sedimentation tank 1, and the scum and foam floating on the surface are driven away and removed. The driving mechanism 2 is formed by a plurality of motors in combination, and the driving mechanism 2 is prior art in the field, and will not be described here. The end of the driving rod 3 is provided with a cleaning assembly 4 which rotates automatically with the driving rod 3, the cleaning assembly 4 comprises a side cleaning brush 4a arranged on the side of the sedimentation tank 1 and a top cleaning brush 4b arranged on the top of the sedimentation tank 1. In the embodiment, the driving rod 3 can be arranged in one group or two groups, and the cleaning assembly 4 can also be arranged in one group or two groups, which can be arranged according to the use requirement.

[0034] Please continue to refer to Figure 2 and Figure 3 In the embodiment, the cleaning assembly 4 is arranged at the position of the inner weir wall 1b, wherein the side cleaning brush 4a is in contact with the outer side of the inner weir wall 1b, and the top cleaning brush 4b is in contact with the top of the inner weir wall 1b. Based on the sedimentation principle of the sedimentation tank 1, the water in the sedimentation tank 1 flows into the middle groove 1d along the top and side of the inner weir wall 1b. Therefore, by arranging the top cleaning brush 4b and the side cleaning brush 4a on the top and the outer side of the inner weir wall 1b, and driving the driving rod 3 to rotate, automatic cleaning is realized. The cleaning assembly 4 added in the utility model does not need to be provided with a separate driving mechanism, but only needs to be arranged on the original driving rod 3, and therefore the cost is low.

[0035] The cleaning assembly 4 also includes a connecting rod 4c. One end of the connecting rod 4c is welded and fixed to the end of the drive rod 3, and the other end of the connecting rod 4c is detachably fitted with a side cleaning brush 4a and a top cleaning brush 4b. A first mounting hole 4d is vertically drilled through the free end of the connecting rod 4c, and a second mounting hole 4e is horizontally drilled through it. The upper end of the side cleaning brush 4a is bolted through the second mounting hole 4e and onto the connecting rod 4c. Both the first mounting hole 4d and the second mounting hole 4e are elongated, and the length and width of the first mounting hole 4d are greater than the length and width of the mounting position of the side cleaning brush 4a, facilitating adjustment of the position of the side cleaning brush 4a. During installation, bolts are used for fastening, but a certain degree of rotation is allowed. The top of the side cleaning brush 4a is connected to the free end of the connecting rod 4c via a first spring 4f. A second spring 4g is located in the middle of the side cleaning brush 4a and connected to the connecting rod 4c. The first spring 4f and the second spring 4g exert opposing pulling forces, and the pulling forces of the first spring 4f and the second spring 4g are the same, ensuring sufficient contact between the side cleaning brush 4a and the outer side of the inner dam wall 1b. The pulling force can be adjusted before use. The arrangement of the first spring 4f and the second spring 4g allows the side cleaning brush 4a to rotate and clean along the inner dam wall 1b. When the curvature of the outer side is uneven, the design of the first spring 4f and the second spring 4g enables adaptive adjustment, allowing for smooth passage and cleaning, and avoiding jamming. In this embodiment, the first spring 4f is one set, and the second spring 4g is two sets symmetrically arranged to maintain force balance. Due to the connection method of the side cleaning brush 4a,

[0036] The lower end of the connecting rod 4c is provided with a mounting part 4h, and the mounting part 4h is provided with a strip-shaped third mounting hole 4i. The top cleaning brush 4b is fixedly connected to the mounting part 4h by passing through the third mounting hole 4i with a bolt.

[0037] Please continue reading. Figure 1 Furthermore, the lower end of the drive mechanism 2 is provided with a scraping assembly 6, which includes a mounting beam 6a and scraping plates 6b disposed at both ends of the mounting beam. The scraping plates 6b are arc-shaped, and a drain outlet 1f is provided in the middle of the sedimentation tank 1. A channel 7 is also provided above the sedimentation tank 1 to facilitate personnel observation and maintenance of the drive motor.

[0038] The working principle of this utility model is as follows:

[0039] The utility model discloses a drive rod 3's end welding fixed connecting rod 4c, and the top and the lateral surface of the inner weir wall 1b are provided with the lateral surface cleaning brush 4a and the top cleaning brush 4b on the connecting rod 4c, when the drive mechanism 2 drives the rotation of drive rod 3, the lateral surface cleaning brush 4a and the top cleaning brush 4b complete automatic cleaning along the inner weir wall 1b water surface, do not need artificial periodic cleaning, reduce the artificial cost and labor intensity. Meanwhile, the scraper assembly 6 in the accommodating cavity 1a carries out the automatic cleaning to the mud of bottom.

[0040] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above-mentioned embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.

Claims

1. A sedimentation tank with self-cleaning function, characterized in that, It includes a sedimentation tank (1) and a drive mechanism (2) located in the middle of the sedimentation tank (1). The drive mechanism (2) is connected to a drive rod (3) for driving away scum and foam. The end of the drive rod (3) is provided with a cleaning component (4) that rotates automatically with the drive rod (3). The cleaning component (4) includes a side cleaning brush (4a) located on the side of the sedimentation tank (1) and a top cleaning brush (4b) located on the top of the sedimentation tank (1).

2. A sedimentation tank with self-cleaning function as described in claim 1, characterized in that, The sedimentation tank (1) includes an internal receiving cavity (1a), which is provided with an inner weir wall (1b) and an outer weir wall (1c). An intermediate channel (1d) is provided between the inner weir wall (1b) and the outer weir wall (1c). An outlet (1e) is provided on the outer weir wall (1c) and communicates with the intermediate channel (1d). The cleaning component (4) is located at the position of the inner weir wall (1b). The side cleaning brush (4a) contacts the outer side of the inner weir wall (1b), and the top cleaning brush (4b) contacts the top of the inner weir wall (1b).

3. A sedimentation tank with self-cleaning function as described in claim 2, characterized in that, The inner weir wall (1b) is provided with a filter element (5) at the top, and the upper end of the filter element (5) is set in a sawtooth shape.

4. A sedimentation tank with self-cleaning function as described in claim 1, characterized in that, The cleaning assembly (4) also includes a connecting rod (4c), one end of which is welded and fixed to the end of the drive rod (3), and the other end of which is detachably equipped with a side cleaning brush (4a) and a top cleaning brush (4b).

5. A sedimentation tank with self-cleaning function as described in claim 4, characterized in that, The free end of the connecting rod (4c) has a first mounting hole (4d) extending vertically and a second mounting hole (4e) extending horizontally. The upper end of the side cleaning brush (4a) is mounted on the connecting rod (4c) by bolts passing through the second mounting hole (4e) and the side cleaning brush (4a). The top of the side cleaning brush (4a) is connected to the free end of the connecting rod (4c) by a first spring (4f). A second spring (4g) is provided at the middle position of the side cleaning brush (4a) and connected to the connecting rod (4c). The first spring (4f) and the second spring (4g) form opposite tensions, and the tensions on both sides are the same.

6. A sedimentation tank with self-cleaning function as described in claim 4, characterized in that, The lower end of the connecting rod (4c) is provided with a mounting part (4h), and the mounting part (4h) is provided with a strip-shaped third mounting hole (4i). The top cleaning brush (4b) is fixedly connected to the mounting part (4h) by passing through the third mounting hole (4i) with a bolt.

7. A sedimentation tank with self-cleaning function as described in claim 1, characterized in that, The lower end of the drive mechanism (2) is provided with a scraping assembly (6), which includes a mounting beam (6a) and scraping plates (6b) disposed at both ends of the mounting beam. The middle part of the sedimentation tank (1) is provided with a sewage outlet (1f).

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