Suspended matter filtering device for wastewater treatment

Abstract

The suspended matter filtering device for wastewater treatment comprises a filtering tank, an aeration mechanism and a cleaning mechanism, a partition plate is arranged in the filtering tank and divides the interior of the filtering tank into a filtering cavity, an overflow cavity and a liquid discharging cavity, one side of the top of the filtering cavity is communicated with the overflow cavity, a mounting hole is formed in the partition plate, and the aeration mechanism is arranged in the mounting hole. The filter cavity is communicated with the liquid discharge cavity through the mounting hole, a filter screen is fixedly arranged in the mounting hole, the aeration mechanism is communicated with the filter cavity, and the aeration mechanism is used for aerating the filter cavity; the cleaning mechanism comprises a driving part and a sweeping part, the fixed end of the driving part is connected with the filter tank, the sweeping part is connected with the movable end of the driving part and arranged in the liquid discharging cavity in a penetrating mode, the sweeping part makes contact with the filter screen, and the sweeping part is driven by the driving part to do reciprocating motion so that impurities attached to the filter screen can be cleaned through the sweeping part. The problems that when suspended solids in waste water are filtered, impurities in the waste water easily cause blockage of a filter screen, and the liquid level in a filter tank cannot be ensured to be constant are solved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a suspended solids filtration device for wastewater treatment. Background Technology

[0002] Wastewater treatment refers to the removal of pollutants from water using physical, chemical, or biological methods to ensure that the water quality meets certain standards and can be safely discharged into the environment or reused. Wastewater treatment is generally divided into primary treatment, secondary treatment, and advanced treatment.

[0003] Primary treatment mainly removes suspended solids and impurities from wastewater through physical methods. Typically, an air flotation machine is used to generate a large number of bubbles in the filtration chamber. Impurities and suspended solids in the water adhere to the bubbles and rise to the surface with the buoyancy of the bubbles, forming a layer of scum. This scum can be easily removed. However, because a filter screen is installed between the filtration chamber and the discharge chamber, impurities in the wastewater are easily adsorbed onto the filter screen, causing the mesh to become clogged. This results in a mismatch between the flow rate of wastewater entering the filtration chamber and the flow rate exiting the filtration chamber, which can easily lead to repeated changes in the liquid level in the filtration chamber. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a suspended solids filtration device for wastewater treatment, which solves the problem in the prior art that impurities in wastewater easily clog the filter screen and cannot guarantee a constant liquid level in the filtration tank when filtering suspended solids in wastewater.

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

[0006] This utility model provides a suspended solids filtration device for wastewater treatment, including a filtration tank and an aeration mechanism. The filtration tank is equipped with a partition that divides the tank into a filtration chamber, an overflow chamber, and a drainage chamber. One side of the top of the filtration chamber communicates with the overflow chamber. An installation hole is provided on the partition, and the filtration chamber communicates with the drainage chamber via the installation hole. A filter screen is fixed within the installation hole. The aeration mechanism communicates with the filtration chamber and is used to aerate the filtration chamber. The device also includes a cleaning mechanism, comprising a driving component and a cleaning component. The driving component is connected to the filtration tank, and the cleaning component is connected to the driving component and passes through the drainage chamber, contacting the filter screen. The driving component drives the cleaning component to reciprocate, allowing it to clean impurities adhering to the filter screen.

[0007] In some embodiments, the drive unit includes a frame, a threaded rod, a mounting base, and a forward and reverse motor. The frame is connected to the top of the filter tank, the threaded rod is rotatably connected to the frame, the mounting base is slidably connected to the frame and threadedly rotatably connected to the threaded rod, the forward and reverse motor is connected to the frame, and the output end of the forward and reverse motor is fixedly connected to one end of the threaded rod.

[0008] The cleaning component includes a geared motor and a cleaning roller. The geared motor is connected to the mounting base, the cleaning roller is connected to the output end of the geared motor, and the cleaning roller is in contact with the filter screen.

[0009] In some embodiments, a wave-pushing mechanism is further included, which is connected to the top of the filter tank and is used to push suspended matter on the surface of the wastewater in the filter tank into the overflow cavity.

[0010] In some embodiments, the wave-pushing mechanism includes a rotating shaft, a chain, and a servo motor. The two rotating shafts are spaced apart and rotatably disposed on the top of the filter tank. Sprockets are fixed at opposite ends of the two rotating shafts. A chain is connected between the two sprockets at one end of the two rotating shafts, and at least one wave-pushing plate is fixed between the two chains. The servo motor is connected to the filter tank, and the output end of the servo motor is connected to one end of one of the rotating shafts.

[0011] In some embodiments, the filter chamber is provided with a baffle that is slidably connected to the partition, and a telescopic member is fixedly connected to the partition. The movable end of the telescopic member is connected to the baffle, and the telescopic member is used to drive the baffle to rise and fall to open or close the mounting hole.

[0012] In some embodiments, the telescopic member is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

[0013] In some embodiments, a dosing mechanism is further included, which includes a drug storage tank and a liquid extraction device. The drug storage tank is used to hold the drug and is connected to the filter chamber via the liquid extraction device.

[0014] In some embodiments, a stirring element connected to the filter tank is further included, the stirring element being used to stir the wastewater in the filter chamber.

[0015] In some embodiments, the aeration mechanism includes air guide pipes and a blower. A plurality of air guide pipes are arranged at intervals within the filtration chamber, and a plurality of aeration heads are provided at intervals on the air guide pipes. The blower is located outside the filtration tank and is connected to the plurality of air guide pipes.

[0016] In some embodiments, the cleaning roller is a bristle roller.

[0017] Compared with the prior art, the suspended solids filtration device for wastewater treatment provided by this utility model divides the filtration tank into a filtration chamber, an overflow chamber, and a drainage chamber by a partition. One side of the top of the filtration chamber is connected to the overflow chamber. The partition has a mounting hole, through which the filtration chamber is connected to the drainage chamber. A filter screen is fixed in the mounting hole. An aeration mechanism is connected to the filtration chamber and is used to aerate the filtration chamber. A driving component is connected to the filtration tank, and a cleaning component is connected to the driving component and passes through the drainage chamber. The cleaning component is in contact with the filter screen. The driving component drives the cleaning component to reciprocate, which can clean the impurities attached to the filter screen. This ensures that the wastewater in the filtration chamber can flow smoothly into the drainage chamber. When the inflow rate and outflow rate in the filtration chamber are kept consistent, it is beneficial to keep the wastewater level in the filtration tank constant, which facilitates the removal of suspended solids into the overflow chamber. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of a suspended solids filtration device for wastewater treatment provided in an embodiment of this utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of a suspended solids filtration device for wastewater treatment provided in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the cleaning mechanism provided in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] To address the technical problem in existing wastewater filtration technologies where impurities easily clog the filter screen and prevent a constant liquid level in the filtration tank, this invention provides a wastewater treatment suspended solids filtration device that can clean the filter screen and prevent clogging.

[0024] Please see Figure 1 and Figure 4 , Figure 1 and Figure 4A suspended solids filtration device for wastewater treatment according to one embodiment of the present invention includes a filter tank 1 and an aeration mechanism 2. The filter tank 1 is provided with a partition 10, which divides the filter tank 1 into a filter chamber 1a, an overflow chamber 1b, and a drainage chamber 1c. One side of the top of the filter chamber 1a communicates with the overflow chamber 1b. The partition 10 has a mounting hole, through which the filter chamber 1a communicates with the drainage chamber 1c. A filter screen 11 is fixed within the mounting hole. The aeration mechanism 2 is connected to the filter chamber 1. The aeration mechanism 2 is used to aerate the filter chamber 1a; it also includes a cleaning mechanism 3, which includes a driving component 31 and a cleaning component 32. The fixed end of the driving component 31 is connected to the filter tank 1, and the cleaning component 32 is connected to the movable end of the driving component 31 and passes through the drain chamber 1c. The cleaning component 32 is in contact with the filter screen 11. The driving component 31 drives the cleaning component 32 to reciprocate, so that the cleaning component 32 can clean the impurities attached to the filter screen 11.

[0025] In this specific embodiment, the aeration mechanism 2 includes air guide pipes 21 and a blower 22. Multiple air guide pipes 21 are arranged at intervals within the filter chamber 1a. Multiple aeration heads are provided at intervals on the air guide pipes. The blower is located outside the filter tank, and all the multiple air guide pipes 21 are connected to the blower 22. By injecting a large number of microbubbles into the wastewater in the filter chamber 1a through multiple aeration heads, it is possible to ensure that impurities and suspended solids in the wastewater adhere to the bubbles and rise to the water surface with the buoyancy of the bubbles, forming a layer of scum. This scum can be easily removed, thereby achieving the purpose of purifying the wastewater.

[0026] In this specific embodiment, the driving component 31 includes a frame 311, a threaded rod 312, a mounting base 313, and a forward / reverse motor 314. The frame 311 is connected to the top of the filter tank 1, the threaded rod 312 is rotatably connected to the frame 311, the mounting base 313 is slidably connected to the frame 311 and threadedly rotatably connected to the threaded rod 312, the forward / reverse motor 314 is connected to the frame 311, and the output end of the forward / reverse motor 314 is fixedly connected to one end of the threaded rod 312. The cleaning component 32 includes a reduction motor 321 and a cleaning roller 322. The reduction motor 321 is connected to the mounting base 313, the cleaning roller 322 is connected to the output end of the reduction motor 321, and the cleaning roller 322 contacts the filter screen 11. The cleaning roller 322 is a bristle brush roller.

[0027] It should be noted that the threaded rod 312 is set along the width direction of the filter tank 1. The threaded rod 312 is driven to rotate in the forward or reverse direction by the forward and reverse motors 314, thereby driving the mounting base 313 to reciprocate along the length direction of the threaded rod 312, so that the cleaning roller 322 can clean the filter screen 11. At the same time, the reduction motor 321 drives the cleaning roller 322 to rotate, which further improves the cleaning effect of the cleaning roller 322 on the filter screen 11.

[0028] Based on the above scheme, in order to facilitate the removal of scum into the overflow cavity 1b, a wave pushing mechanism 4 is specifically included. The wave pushing mechanism 4 is connected to the top of the filter tank 1 and is used to push the suspended matter on the surface of the wastewater in the filter tank 1 into the overflow cavity 1b.

[0029] In this specific embodiment, the wave-pushing mechanism 4 includes a rotating shaft 41, a chain 42, and a servo motor 43. The two rotating shafts 41 are spaced apart and rotatably disposed on the top of the filter tank 1. Sprockets 411 are fixed at opposite ends of the two rotating shafts 41. A chain 42 is connected between the two sprockets 411 at one end of the two rotating shafts 41, and at least one wave-pushing plate 44 is fixed between the two chains 42. The servo motor 43 is connected to the filter tank 1, and the output end of the servo motor 43 is connected to one end of one of the rotating shafts 41.

[0030] It should be noted that the two rotating shafts 41 are arranged along the width direction of the filter tank. One of the rotating shafts 41 is driven to rotate by the servo motor 43, which can drive the two chains 42 to rotate, thereby driving the wave pusher plate 44 to move along the length direction of the filter tank. The wave pusher plate 44 can push the scum into the overflow chamber 1b.

[0031] In this specific embodiment, the filter chamber 1a is provided with a baffle 12 that is slidably connected to the partition 10. A telescopic member 13 is fixedly connected to the partition 10, and the movable end of the telescopic member 13 is connected to the baffle 12. The telescopic member 13 is used to drive the baffle 12 to rise and fall to open or close the mounting hole.

[0032] It should be noted that when the baffle 12 closes the mounting hole, wastewater is injected into the filter chamber 1a so that the wastewater can reach the specified liquid level. Furthermore, depending on the flow rate of the wastewater injected into the filter chamber 1a, the size of the mounting hole opening can be adjusted by driving the baffle 12 to rise and fall through the telescopic component 13, ensuring that the flow rate of the wastewater in the filter chamber 1a to the drain chamber 1c is consistent with the flow rate of the wastewater entering the filter chamber 1a.

[0033] In this specific embodiment, the telescopic member 13 is an electric push rod. Of course, in other embodiments, the telescopic member 13 can also be a pneumatic cylinder or a hydraulic cylinder.

[0034] Based on the above scheme, in order to facilitate the addition of medicine into the filter chamber 1a, a dosing mechanism 5 is specifically included. The dosing mechanism 5 includes a medicine storage tank 51 and a liquid extraction component 52. The medicine storage tank 51 is used to hold medicine, and the medicine storage tank 51 is connected to the filter chamber 1a via the liquid extraction component 52.

[0035] Based on the above scheme, it also includes a stirring element 6 connected to the filter tank 1. The stirring element 6 is used to stir the wastewater in the filter chamber 1a, which can prevent impurities from settling and ensure that impurities and suspended solids are in better contact with the air bubbles.

[0036] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A suspended solids filtration device for wastewater treatment, comprising a filtration tank and an aeration mechanism, wherein a partition is provided in the filtration tank, the partition dividing the filtration tank into a filtration chamber, an overflow chamber, and a drainage chamber, one side of the top of the filtration chamber communicating with the overflow chamber, an installation hole is provided on the partition, the filtration chamber communicating with the drainage chamber through the installation hole, and a filter screen is fixed in the installation hole, the aeration mechanism communicating with the filtration chamber, the aeration mechanism being used to aerate the filtration chamber; characterized in that... It also includes a cleaning mechanism, which includes a driving component and a cleaning component. The fixed end of the driving component is connected to the filter tank, and the cleaning component is connected to the movable end of the driving component and passes through the drainage chamber. The cleaning component is in contact with the filter screen. The driving component drives the cleaning component to reciprocate, so that the cleaning component can clean the impurities attached to the filter screen.

2. The suspended solids filtration device for wastewater treatment according to claim 1, characterized in that, The driving component includes a frame, a threaded rod, a mounting base, and a forward and reverse motor. The frame is connected to the top of the filter tank, the threaded rod is rotatably connected to the frame, the mounting base is slidably connected to the frame and threadedly rotatably connected to the threaded rod, the forward and reverse motor is connected to the frame, and the output end of the forward and reverse motor is fixedly connected to one end of the threaded rod. The cleaning component includes a geared motor and a cleaning roller. The geared motor is connected to the mounting base, the cleaning roller is connected to the output end of the geared motor, and the cleaning roller is in contact with the filter screen.

3. The suspended solids filtration device for wastewater treatment according to claim 1, characterized in that, It also includes a wave-pushing mechanism, which is connected to the top of the filter tank and is used to push suspended matter on the surface of the wastewater in the filter tank into the overflow cavity.

4. A suspended solids filtration device for wastewater treatment according to claim 3, characterized in that, The wave-pushing mechanism includes a rotating shaft, a chain, and a servo motor. The two rotating shafts are spaced apart and rotatably mounted on the top of the filter tank. Sprockets are fixed at opposite ends of the two rotating shafts. A chain is connected between the two sprockets at one end of each rotating shaft, and at least one wave-pushing plate is fixed between the two chains. The servo motor is connected to the filter tank, and the output end of the servo motor is connected to one end of one of the rotating shafts.

5. A suspended solids filtration device for wastewater treatment according to claim 1, characterized in that, The filter chamber is provided with a baffle that is slidably connected to the partition. A telescopic member is fixedly connected to the partition, and the movable end of the telescopic member is connected to the baffle. The telescopic member is used to drive the baffle to rise and fall to open or close the mounting hole.

6. A suspended solids filtration device for wastewater treatment according to claim 5, characterized in that, The telescopic component is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

7. A suspended solids filtration device for wastewater treatment according to claim 1, characterized in that, It also includes a dosing mechanism, which includes a drug storage tank and a liquid extraction device. The drug storage tank is used to hold the drug and is connected to the filter chamber via the liquid extraction device.

8. A suspended solids filtration device for wastewater treatment according to claim 1, characterized in that, It also includes a stirring element connected to the filter tank, which is used to stir the wastewater in the filter chamber.

9. A suspended solids filtration device for wastewater treatment according to claim 1, characterized in that, The aeration mechanism includes air guide pipes and a blower. Multiple air guide pipes are arranged at intervals in the filter chamber. Multiple aeration heads are provided at intervals on the air guide pipes. The blower is located outside the filter tank and is connected to the multiple air guide pipes.

10. A suspended solids filtration device for wastewater treatment according to claim 2, characterized in that, The cleaning roller is a brush roller.

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