An industrial wastewater precipitation device

Abstract

This utility model discloses an industrial wastewater sedimentation device, including a vertical sedimentation tank. A water inlet channel is horizontally fixed at the top of the vertical sedimentation tank, and a central pipe is fixed at the bottom of the water inlet channel. A reflector plate is fixed at the bottom of the central pipe. An overflow weir is arranged at the top of the vertical sedimentation tank below the water inlet channel. A filter plate is horizontally arranged at the top of the interior of the vertical sedimentation tank, and an anti-clogging component is arranged below the filter plate. A sludge scraping component is connected to the bottom of the anti-clogging component. In this utility model, a vertical sedimentation tank, a water inlet channel, a central pipe, a sedimentation tank, a first ring plate, a second ring plate, and a filter plate are provided. After wastewater enters the vertical sedimentation tank through the water inlet channel and the central pipe, sludge is discharged along the bottom of the central pipe and settles into the sedimentation tank. As sedimentation proceeds, a small amount of sludge floats to the surface. The filter plate prevents the sludge from continuing to float to the overflow weir, thus ensuring that the water discharged from the overflow weir is cleaner.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and in particular to an industrial wastewater sedimentation device. Background Technology

[0002] A vertical flow sedimentation tank is a vertical structure that treats industrial wastewater using the principle of gravity settling. Its main structure consists of a central inlet pipe, a sedimentation zone, a sludge hopper, and an effluent weir. Wastewater flows vertically into the central pipe at the top, and after being de-energized by a reflector or diffuser, it rises evenly, slowing the flow velocity and allowing suspended particles to settle naturally under gravity. Sludge is deposited in the conical sludge hopper at the bottom and is periodically discharged by static pressure or mechanical means. The clarified water is collected and discharged through the surrounding overflow weir. This type of tank has a small footprint and is suitable for treating small to medium flow rates of wastewater. However, its structure has drawbacks, including significant disturbance at the central inlet and sludge hopper clogging. To improve efficiency, the inlet energy dissipation device (such as a reflector cone or flow stabilizer) can be optimized to improve water flow distribution, the sludge hopper angle can be increased, and smooth lining materials can be used to enhance sludge removal. Inclined packing can also be added to increase the settling area.

[0003] However, existing vertical flow sedimentation tanks still have the following drawbacks: vertical flow sedimentation tanks usually use conical sludge hoppers, but the inclination angle of the hopper walls may be insufficient, causing sludge to adhere and accumulate, making it difficult to discharge by gravity. If the sludge discharge pipe diameter is too small or the location is unreasonable, it is easy to get clogged and requires frequent manual cleaning. During sedimentation, as the sludge at the bottom accumulates higher, a small amount of sludge will float up and pass through the overflow weir and be discharged from the effluent pipe, affecting the quality of the discharged water. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an industrial wastewater sedimentation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an industrial wastewater sedimentation device, comprising a vertical sedimentation tank, an inlet channel horizontally fixed at the top of the vertical sedimentation tank, a central pipe fixed at the bottom of the inlet channel, a reflector plate fixed at the bottom of the central pipe, an overflow weir at the top of the vertical sedimentation tank and below the inlet channel, a filter plate horizontally installed at the top of the interior of the vertical sedimentation tank, an anti-clogging component installed below the filter plate, a sludge scraping component connected to the bottom of the anti-clogging component, a sedimentation tank at the bottom of the vertical sedimentation tank, a reduction motor for driving the anti-clogging component and the sludge scraping component to rotate installed on the lower surface of the sedimentation tank, and support feet fixed on the lower surface of the vertical sedimentation tank.

[0006] Furthermore, an inlet pipe is fixed to the top of the vertical sedimentation tank and is connected to the inlet channel; an outlet pipe is fixed to the top of the vertical sedimentation tank and is positioned below the overflow weir.

[0007] Furthermore, a sludge discharge pipe is fixed to the side wall of the sedimentation tank.

[0008] Furthermore, a first ring plate is fixed to the top of the outer wall of the central tube, and a second ring plate is fixed to the inner wall of the vertical sedimentation tank. The second ring plate is at the same height as the first ring plate, and the filter plate is located on the upper surface of the first and second ring plates.

[0009] Furthermore, the filter plate is composed of multiple sector-shaped filter plates spliced ​​together.

[0010] Furthermore, the sludge scraping assembly includes a vertical shaft that is rotatably connected to the bottom wall of the sedimentation tank via a sealed bearing, and the bottom end of the vertical shaft is connected to a reduction motor. A horizontal bar is fixed to the top end of the vertical shaft, and a scraper is fixed to the other end of the horizontal bar. The scraper is in contact with the bottom wall of the vertical sedimentation tank.

[0011] Furthermore, the anti-clogging component includes a brush located on the lower surface of the filter plate, and a vertical rod is fixed to the lower surface of the brush, with the bottom end of the vertical rod fixedly connected to the scraper.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model is an industrial wastewater sedimentation device, which is equipped with a vertical sedimentation tank, an inlet channel, a central pipe, a sedimentation trough, a first ring plate, a second ring plate, and a filter plate. After the wastewater enters the vertical sedimentation tank through the inlet channel and the central pipe, the sludge is discharged along the bottom of the central pipe and settles into the sedimentation trough. As the sedimentation proceeds, a small amount of sludge will float to the surface. The filter plate can prevent the sludge from continuing to float to the overflow weir, thereby ensuring that the water discharged from the overflow weir is cleaner.

[0014] 2. In use, this utility model is an industrial wastewater sedimentation device equipped with an anti-clogging component, a sludge scraping component, and a geared motor. The geared motor can drive the anti-clogging component and the sludge scraping component to rotate synchronously. The brush of the rotating anti-clogging component rubs the lower surface of the filter plate to prevent sludge from adsorbing and accumulating on the lower surface of the filter plate, thus ensuring good passability of the filter plate. Secondly, the sludge scraping component scrapes the bottom wall of the vertical sedimentation tank, allowing the sludge to smoothly enter the bottom sedimentation tank, which is conducive to the discharge of sludge. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : Overall sectional view of this utility model;

[0017] Figure 2Partial perspective view of this utility model;

[0018] Figure 3 The present utility model Figure 1 Enlarged view of point A in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Vertical sedimentation tank; 2. Inlet channel; 3. Inlet pipe; 4. Central pipe; 5. Reflector plate; 6. Overflow weir; 7. Outlet pipe; 8. Sedimentation tank; 9. Sludge discharge pipe; 10. First ring plate; 11. Second ring plate; 12. Filter plate; 13. Anti-clogging component; 131. Vertical rod; 132. Brush; 14. Sludge scraping component; 141. Vertical shaft; 142. Horizontal rod; 143. Scraper; 15. Gear motor; 16. Support feet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, an industrial wastewater sedimentation device is disclosed, comprising a vertical sedimentation tank 1, an inlet channel 2 horizontally fixed at the top of the vertical sedimentation tank 1, a central pipe 4 fixed at the bottom of the inlet channel 2, a reflector plate 5 fixed at the bottom of the central pipe 4, an overflow weir 6 at the top of the vertical sedimentation tank 1 and below the inlet channel 2, a filter plate 12 horizontally installed at the top inside the vertical sedimentation tank 1, an anti-clogging component 13 installed below the filter plate 12, a sludge scraping component 14 connected to the bottom of the anti-clogging component 13, a sedimentation tank 8 at the bottom of the vertical sedimentation tank 1, a reduction motor 15 for driving the anti-clogging component 13 and the sludge scraping component 14 to rotate installed on the lower surface of the sedimentation tank 8, and support feet 16 fixed on the lower surface of the vertical sedimentation tank 1.

[0023] The top of the vertical sedimentation tank 1 is fixed with an inlet pipe 3, which is connected to the inlet channel 2. The top of the vertical sedimentation tank 1 is fixed with an outlet pipe 7, which is positioned at a height lower than the overflow weir 6.

[0024] In this embodiment, the overflow weir 6, the inlet pipe 3 and the outlet pipe 7 are set up in the same way as in the prior art. Wastewater enters the inlet channel 2 from the inlet pipe 3 and then flows down along the central pipe 4 at the bottom of the inlet channel 2. The sludge settles down into the sedimentation tank 8.

[0025] A sludge discharge pipe 9 is fixed to the side wall of sedimentation tank 8.

[0026] In this embodiment, the other end of the sludge discharge pipe 9 is connected to a sludge pump, which replaces the original static pressure sludge discharge, thereby improving the sludge discharge efficiency.

[0027] A first ring plate 10 is fixed to the top of the outer side wall of the central pipe 4, and a second ring plate 11 is fixed to the inner side wall of the vertical sedimentation tank 1. The second ring plate 11 is at the same height as the first ring plate 10, and the filter plate 12 is located on the upper surface of the first ring plate 10 and the second ring plate 11.

[0028] The first ring plate 10 and the second ring plate 11 can support the filter plate 12.

[0029] The filter plate 12 is composed of multiple sector-shaped filter plates 12 spliced ​​together. This allows each individual sector-shaped filter plate 12 to be directly disassembled from the surface of the second ring plate 11 and the first ring plate 10, which facilitates the removal of the smaller sector-shaped filter plates 12 from the top of the vertical sedimentation tank 1, and makes it easier to replace or deeply clean the filter plates 12.

[0030] The sludge scraping assembly 14 includes a vertical shaft 141 that is rotatably connected to the bottom wall of the sedimentation tank 8 via a sealed bearing. The bottom end of the vertical shaft 141 is connected to a geared motor 15. A horizontal bar 142 is fixed to the top end of the vertical shaft 141, and a scraper 143 is fixed to the other end of the horizontal bar 142. The scraper 143 is in contact with the bottom wall of the vertical sedimentation tank 1.

[0031] In this embodiment, the scraper 143 is inclined on the bottom wall of the vertical sedimentation tank 1. After the vertical shaft 141 is driven to rotate by the reduction motor 15, the scraper 143 is driven to rotate along the bottom wall of the vertical sedimentation tank 1 by the vertical shaft 141 and the crossbar 142, which avoids the sludge from accumulating on the bottom wall of the vertical sedimentation tank 1, so that the sludge can smoothly enter the sedimentation tank 8, which is conducive to the discharge of sludge.

[0032] The anti-clogging component 13 includes a brush 132 located on the lower surface of the filter plate 12, and a vertical rod 131 is fixed on the lower surface of the brush 132. The bottom end of the vertical rod 131 is fixedly connected to the scraper 143.

[0033] When the geared motor 15 drives the scraper 143 to rotate, the vertical rod 131 on the scraper 143 will drive the brush 132 to rotate. The brush 132 scrapes the lower surface of the filter plate 12, thereby preventing sludge from adsorbing and accumulating on the lower surface of the filter plate 12 and ensuring good flow of the filter plate 12.

[0034] Working principle: Wastewater enters the inlet channel 2 through the inlet pipe 3, and then flows downward along the central pipe 4. Sludge is discharged from the bottom of the central pipe 4 and settles in the sedimentation tank 8. Under the filtration and blocking effect of the filter plate 12, the sludge will not float upward. The wastewater filtered by the filter plate 12 is discharged along the overflow weir 6 and the outlet pipe 7. As the sludge settles, the sludge pump on the sludge discharge pipe 9 is turned on to pump out the sludge from the sedimentation tank 8. Throughout the process, the geared motor 15 drives the scraper 143 and the brush 132 to rotate. The scraper 143 rotates along the bottom wall of the vertical sedimentation tank 1 to prevent sludge from accumulating on the bottom wall of the vertical sedimentation tank 1. The brush 132 scrapes the lower surface of the filter plate 12, thereby preventing sludge from adsorbing and accumulating on the lower surface of the filter plate 12.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An industrial wastewater sedimentation device, comprising a vertical sedimentation tank (1), characterized in that: The vertical sedimentation tank (1) has a horizontally fixed inlet channel (2) at the top, and a central pipe (4) is fixed at the bottom of the inlet channel (2). A reflector plate (5) is fixed at the bottom of the central pipe (4). An overflow weir (6) is set at the top of the vertical sedimentation tank (1) and below the inlet channel (2). A filter plate (12) is horizontally set at the top inside the vertical sedimentation tank (1), and an anti-clogging component (13) is set below the filter plate (12). A sludge scraping component (14) is connected to the bottom of the anti-clogging component (13). A sedimentation tank (8) is set at the bottom of the vertical sedimentation tank (1). A reduction motor (15) for driving the anti-clogging component (13) and the sludge scraping component (14) to rotate is installed on the lower surface of the sedimentation tank (8). A support foot (16) is fixed on the lower surface of the vertical sedimentation tank (1).

2. The industrial wastewater sedimentation device according to claim 1, characterized in that: The vertical sedimentation tank (1) is fixed with an inlet pipe (3) at the top, and the inlet pipe (3) is connected to the inlet channel (2). The vertical sedimentation tank (1) is fixed with an outlet pipe (7) at the top, and the outlet pipe (7) is positioned at a height lower than the overflow weir (6).

3. The industrial wastewater sedimentation device according to claim 1, characterized in that: The sedimentation tank (8) is fixed with a sludge discharge pipe (9) on its side wall.

4. The industrial wastewater sedimentation device according to claim 1, characterized in that: The top of the outer wall of the central pipe (4) is fixed with a first ring plate (10), and the inner wall of the vertical sedimentation tank (1) is fixed with a second ring plate (11), and the second ring plate (11) is at the same height as the first ring plate (10). The filter plate (12) is located on the upper surface of the first ring plate (10) and the second ring plate (11).

5. An industrial wastewater sedimentation device according to claim 4, characterized in that: The filter plate (12) is composed of multiple fan-shaped filter plates (12) spliced ​​together.

6. The industrial wastewater sedimentation device according to claim 1, characterized in that: The sludge scraping assembly (14) includes a vertical shaft (141) rotatably connected to the bottom wall of the sedimentation tank (8) via a sealed bearing, and the bottom end of the vertical shaft (141) is connected to a reduction motor (15). A horizontal bar (142) is fixed at the top end of the vertical shaft (141), and a scraper (143) is fixed at the other end of the horizontal bar (142). The scraper (143) is in contact with the bottom wall of the vertical sedimentation tank (1).

7. An industrial wastewater sedimentation device according to claim 6, characterized in that: The anti-clogging component (13) includes a brush (132) located on the lower surface of the filter plate (12), and a vertical rod (131) is fixed on the lower surface of the brush (132), the bottom end of the vertical rod (131) being fixedly connected to the scraper (143).

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