A high-efficiency and durable wastewater treatment bar

Abstract

This utility model relates to the field of wastewater treatment technology and discloses a high-efficiency and durable wastewater treatment screen, including a frame, fine screen filters, and a chain drive mechanism. Multiple fine screen filters are arranged in a wave-like pattern within the frame, with an arc-shaped outer surface. The chain drive mechanism within the frame drives the multiple fine screen filters. A rinsing mechanism for rinsing the fine screen filters is located on the upper top of the frame, and a cleaning mechanism for cleaning the fine screen filters is located on the lower top of the frame. This utility model reduces damage caused by long-term water flow impact through its arc-shaped surface design and wave-like arrangement, improving the durability of the fine screen filters. The dual cleaning process using brushes and high-pressure water ensures thorough cleaning, maintaining the high filtration efficiency of the fine screen filters.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-efficiency and durable wastewater treatment bar. Background Technology

[0002] Fine screens are core equipment in the pretreatment stage of wastewater treatment plants. They are mainly used to intercept small suspended impurities in wastewater, protecting downstream treatment equipment (such as pumps, aeration systems, and sedimentation tanks) from clogging or wear. The main structure of a fine screen consists of a set of parallel metal bars (or metal mesh) forming a "screen". It is installed vertically or at an angle in the channel through which the wastewater flows. When wastewater flows through the screen, the water can pass through the gaps between the bars and enter the subsequent treatment unit; however, impurities larger than the screen spacing are blocked by the bars, adhering to the bar surface or accumulating upstream of the screen, forming "screening residue".

[0003] Existing fine screen filters often feature right-angled and chamfered edges to carry away impurities when rising from the water, and are mostly arranged in a stepped pattern. This stepped arrangement creates a significant drop, further enhancing impurity removal. However, this design suffers from significant wear and tear during actual operation due to water flow and grit impacts, resulting in rapid damage and a short service life. Furthermore, large "screening debris" accumulates on existing fine screens and is often only cleaned with brushes. Brushes only superficially clean surface impurities and are insufficient to remove sand and gravel clogging the mesh. Long-term accumulation leads to extensive blockages, impacting efficiency. Therefore, there is an urgent need to develop a high-efficiency, durable wastewater treatment screen that uses an arc-shaped surface design and a wave-like arrangement to reduce damage from long-term water flow impacts, improve the durability of the fine screen filter, and achieve a more thorough cleaning through a combination of brush cleaning and high-pressure water flow. This would overcome the shortcomings of current applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency and durable wastewater treatment bar to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency and durable wastewater treatment screen includes a frame, fine screen filters, and a chain drive mechanism. The fine screen filters are multiple in number and have an arc-shaped outer surface. The multiple fine screen filters are arranged in a wave-like pattern within the frame. A chain drive mechanism for moving the multiple fine screen filters is installed within the frame. A rinsing mechanism for rinsing the fine screen filters is provided on the upper top side of the frame, and a cleaning mechanism for cleaning the fine screen filters is provided on the lower top side of the frame.

[0007] Preferably, the fine mesh filter is made of stainless steel.

[0008] Preferably, the chain drive mechanism includes: a first motor, a driving wheel, a driven wheel, a transmission belt, a rotating shaft, a sprocket, and a chain. Two chains are installed on opposite sides inside the frame. Multiple sprockets drive and connect the same chain. The first motor is fixed to the frame. A driving wheel is fixed to the output shaft of the first motor. The driving wheel is connected to the driven wheel via the transmission belt. The driven wheel is fixed to the rotating shaft, which is rotatably connected to the frame. The rotating shaft is fixed to the sprocket. A connecting rod is fixed inside the fine mesh screen, and both ends of the connecting rod are connected to the chain.

[0009] Preferably, the rinsing mechanism includes a high-pressure pump, a diversion pipe, and nozzles. The high-pressure pump is fixed on the frame. The inlet of the high-pressure pump is connected to external tap water through a pipe. The outlet of the high-pressure pump is connected to the diversion pipe. Multiple nozzles are provided on the diversion pipe, and the nozzles face the fine screen filter.

[0010] Preferably, the cleaning mechanism includes a second motor and a brush roller, wherein the second motor is fixed to the frame, the brush roller is rotatably connected to the frame, and the output shaft of the second motor is fixed to the brush roller via a coupling.

[0011] The beneficial effects of this utility model are as follows: When using this high-efficiency and durable wastewater treatment screen, the lower half of the frame is placed in the wastewater. A first motor drives the drive wheel, driven wheel, transmission belt, shaft, sprocket, and chain to rotate. The chain rotation causes the fine screen to move up and down. As the fine screen moves upward from the wastewater, it lifts impurities from the wastewater. When the fine screen extends to the cleaning mechanism, a second motor drives the brush roller to rotate, causing the impurities attached to the fine screen to fall off. Additionally, the flushing mechanism is activated periodically. A high-pressure pump delivers high-pressure water to the distribution pipe and nozzles, which spray the high-pressure water onto the fine screen, washing away the sand and gravel clogging it and preventing further blockage. In summary, this utility model reduces damage from long-term water flow impact through its arc-shaped surface design and wave-shaped arrangement, improving the durability of the fine screen. The dual cleaning of the brush and high-pressure water ensures a more thorough cleaning, maintaining the high-efficiency filtration effect of the fine screen. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is an internal sectional view of the frame in this utility model.

[0014] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0015] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0016] Figure 5 This is a partial structural diagram of the present invention. Figure 3 .

[0017] Figure 6 This is a partial structural diagram of the present invention. Figure 4 .

[0018] Legend:

[0019] 1. Frame; 2. Fine screen filter; 201. Connecting rod; 3. Chain drive mechanism; 301. First motor; 302. Drive wheel; 303. Driven wheel; 304. Drive belt; 305. Shaft; 306. Sprocket; 307. Chain; 4. Washing mechanism; 401. High-pressure pump; 402. Diverter pipe; 403. Nozzle; 5. Cleaning mechanism; 501. Second motor; 502. Brush roller. Detailed Implementation

[0020] 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.

[0021] Specific implementation examples are given below.

[0022] See Figures 1-6 In this embodiment of the utility model, a high-efficiency and durable sewage treatment bar includes a frame 1, a fine screen filter 2, and a chain drive mechanism 3. The fine screen filter 2 has a circular arc shape, which makes it smoother and facilitates water flow, effectively reducing the impact of the water flow. The multiple fine screen filters 2 are arranged in a wave-like pattern within the frame 1. When the fine screen filters 2 face downwards, impurities attached to them are easily dislodged under the influence of gravity. The fine screen filters 2 are used to clean impurities in sewage. A chain drive mechanism 3 is installed within the frame 1 to drive the multiple fine screen filters 2. A rinsing mechanism 4 for rinsing the fine screen filters 2 is provided on the upper top side of the frame 1, and a cleaning mechanism 5 for cleaning the fine screen filters 2 is provided on the lower top side of the frame 1.

[0023] The fine mesh filter 2 is made of stainless steel.

[0024] The chain drive mechanism 3 includes: a first motor 301, a drive wheel 302, a driven wheel 303, a transmission belt 304, a rotating shaft 305, a sprocket 306, and a chain 307. Two chains 307 are installed on opposite sides inside the frame 1. Multiple sprockets 306 drive and connect the same chain 307. The first motor 301 is fixed to the frame 1. The drive wheel 302 is fixed to the output shaft of the first motor 301. The drive wheel 302 is connected to the driven wheel 303 via the transmission belt 304. The driven wheel 303 is fixed to the rotating shaft. On 305, the rotating shaft 305 is rotatably connected to the frame 1, and the rotating shaft 305 is fixed to the sprocket 306. A connecting rod 201 is fixed inside the fine screen 2, and the two ends of the connecting rod 201 are respectively connected to the chain 307. In use, the first motor 301 drives the driving wheel 302, the driven wheel 303, the transmission belt 304, the rotating shaft 305, the sprocket 306 and the chain 307 to rotate. The rotation of the chain 307 drives the fine screen 2 to move up and down. When the fine screen 2 moves upward from the sewage, it can carry the impurities in the sewage upward.

[0025] The flushing mechanism 4 includes a high-pressure pump 401, a diversion pipe 402, and nozzles 403. The high-pressure pump 401 is fixed on the frame 1. The inlet of the high-pressure pump 401 is connected to the external tap water through a pipe. The outlet of the high-pressure pump 401 is connected to the diversion pipe 402. Multiple nozzles 403 are provided on the diversion pipe 402. The nozzles 403 face the fine screen filter 2. In use, the high-pressure pump 401 delivers high-pressure water to the diversion pipe 402 and the nozzles 403. The high-pressure water is sprayed onto the fine screen filter 2 through the nozzles 403, thereby washing away the sand and gravel clogging the fine screen filter 2.

[0026] The cleaning mechanism 5 includes a second motor 501 and a brush roller 502. The second motor 501 is fixed to the frame 1, and the brush roller 502 is rotatably connected to the frame 1. The output shaft of the second motor 501 is fixed to the brush roller 502 through a coupling. In use, the second motor 501 drives the brush roller 502 to rotate, and the brush roller 502 rotates to clean the fine screen filter 2.

[0027] The first motor 301, the high-pressure pump 401, and the second motor 501 mentioned above are all controlled by a PLC controller, which is located in the control room (not shown).

[0028] Working principle: When using this high-efficiency and durable sewage treatment screen, the lower half of the frame 1 is placed in the sewage. The first motor 301 drives the drive wheel 302, driven wheel 303, transmission belt 304, rotating shaft 305, sprocket 306 and chain 307 to rotate. The rotation of the chain 307 drives the fine screen filter 2 to move up and down. When the fine screen filter 2 moves upward from the sewage, it can carry the impurities in the sewage upward. When the fine screen filter 2 extends to the cleaning mechanism 5, the second motor 501 drives the brush roller 502 to rotate. The rotation of the brush roller 502 removes the impurities attached to the fine screen filter 2. In addition, the flushing mechanism 4 is activated once every period of use. The high-pressure pump 401 delivers high-pressure water to the diversion pipe 402 and nozzle 403. The high-pressure water is sprayed onto the fine screen filter 2 through the nozzle 403, thereby washing away the sand and gravel clogging the fine screen filter 2 and preventing clogging.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high efficiency and durable sewage treatment grate, characterized in that, The system includes a frame (1), a fine grid filter (2), and a chain drive mechanism (3). There are multiple fine grid filters (2). The outer surface of each fine grid filter (2) is arc-shaped. The multiple fine grid filters (2) are arranged in a wave-like pattern inside the frame (1). The frame (1) is equipped with a chain drive mechanism (3) for moving the multiple fine grid filters (2). The upper top of the frame (1) is equipped with a rinsing mechanism (4) for rinsing the fine grid filters (2). The lower top of the frame (1) is equipped with a cleaning mechanism (5) for cleaning the fine grid filters (2).

2. The high efficiency, long lasting, sewage treatment grate of claim 1, wherein, The fine mesh filter (2) is made of stainless steel.

3. The high efficiency, long lasting, sewage disposal grate of claim 1, wherein, The chain drive mechanism (3) includes: a first motor (301), a driving wheel (302), a driven wheel (303), a transmission belt (304), a rotating shaft (305), a sprocket (306), and a chain (307). Two chains (307) are installed on both sides of the machine frame (1). Multiple sprockets (306) drive and connect the same chain (307). The first motor (301) is fixed to the machine frame (1). 1) A drive wheel (302) is fixed on the output shaft. The drive wheel (302) is connected to the driven wheel (303) via a transmission belt (304). The driven wheel (303) is fixed on a rotating shaft (305). The rotating shaft (305) is rotatably connected to the frame (1). The rotating shaft (305) is fixed to a sprocket (306). A connecting rod (201) is fixed inside the fine grid filter (2). The two ends of the connecting rod (201) are connected to the chain (307) respectively.

4. The high-efficiency and durable wastewater treatment bar according to claim 1, characterized in that, The rinsing mechanism (4) includes: a high-pressure pump (401), a diversion pipe (402) and a nozzle (403). The high-pressure pump (401) is fixed on the frame (1). The inlet of the high-pressure pump (401) is connected to the outside tap water through a pipe. The outlet of the high-pressure pump (401) is connected to the diversion pipe (402). Multiple nozzles (403) are provided on the diversion pipe (402). The nozzles (403) face the fine screen filter (2).

5. The high-efficiency and durable wastewater treatment bar according to claim 1, characterized in that, The cleaning mechanism (5) includes a second motor (501) and a brush roller (502). The second motor (501) is fixed to the frame (1), and the brush roller (502) is rotatably connected to the frame (1). The output shaft of the second motor (501) is fixed to the brush roller (502) through a coupling.

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