A sewage filtering and impurity intercepting device

Abstract

The utility model relates to sewage filtering impurity intercepting device technical field, especially sewage filtering impurity intercepting device, including, water collecting hopper, it includes the water collecting hopper frame with guide conduit, the recess is established at the right side center position of the hopper frame, and the recess inside carries out the fixed bolt to guide conduit, screen cloth group, it includes the impurity screening filter cartridge, the filter cartridge both sides are rotatably installed in two bearing rings inside, the bearing ring left and right sides are connected with two support legs for supporting, and the support leg is fixed in the hopper frame edge of water collecting hopper through bolt The utility model discloses the design of rotating filter cartridge, the synergies of scraper group and washing part, can continuously intercept the small suspended solids, fiber and hair and other impurities in sewage, simultaneously automatically scrape and wash filter cartridge pore surface, effectively prevent filter screen mesh eye block, significantly improve the filtration efficiency and system continuous operation time.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage filtration impurity interception devices, and in particular to a sewage filtration impurity interception device. Background Technology

[0002] In industrial production, municipal drainage, and environmental water treatment, wastewater typically contains a large amount of suspended solids, fibers, hair, and other impurities. To purify the water and protect downstream treatment equipment (such as pumps and membrane modules) from clogging and damage, it is usually necessary to install impurity interception devices at the front end of the process.

[0003] Currently, widely used primary filtration devices mainly fall into two categories: bar screens and sieves. Traditional bar screens, such as manual or mechanical bar screens, have relatively large gaps and are mainly used to intercept large floating objects. They are less effective at intercepting fine suspended solids and fibrous impurities. While fine bar screens or sieves can improve the interception accuracy for precision filtration, they generally suffer from the following technical drawbacks.

[0004] Existing wastewater filtration devices suffer from extremely high filtration efficiency due to their fine mesh openings, which are easily clogged by tangled impurities such as fibers and hair. This leads to a rapid decline in filtration efficiency and a sharp increase in water flow resistance. This not only increases system energy consumption but also forces frequent shutdowns for backwashing or manual cleaning. Furthermore, the devices suffer from low automation, high maintenance workload, and negatively impact the continuous and stable operation of the entire water treatment system. Therefore, a wastewater filtration and impurity interception device is needed to address these issues. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wastewater filtration and impurity interception device, comprising, A water collection hopper includes a water collection frame and a guide channel pipe. A groove is provided at the center of the right side of the hopper frame, and the guide channel pipe is fixed inside the groove by bolts. The screen assembly includes a filter cartridge for screening impurities. The filter cartridge is rotatably mounted inside two bearing rings on both sides. Two support legs are symmetrically connected to the left and right sides of the bearing rings, and these legs are bolted to the edge of the water collection hopper frame. One side of the filter cartridge engages with an external gear drive device via circumferentially arranged teeth to control the rotation of the filter cartridge. The water collection hopper serves as the inlet and initial collection device for wastewater, guiding wastewater evenly into the filter cartridge through a guide pipe to ensure uniform water flow distribution and avoid localized impacts that could reduce filtration efficiency. The grooved design of the hopper frame facilitates quick installation and replacement of the guide pipe, improving the maintainability of the equipment.

[0007] Preferably, a movable scraper assembly is movably arranged on the left side of the water collection hopper frame. The scraper assembly includes a slider movably installed in the slide groove of the water collection hopper frame, and a support plate is connected to the top of the slider. A rotatable and adjustable scraper is provided on the inner side of the top of the support plate. The scraper assembly is used to remove entangled impurities such as hair and fibers adhering to the inner wall of the filter cartridge. The displacement of the slider in the slide groove drives the scraper to approach or move away from the inner wall of the filter cartridge.

[0008] Preferably, a threaded shaft is threaded from right to left through a threaded hole inside the slider, and one end of the threaded shaft is rotatably mounted on the inner wall of the water collection bucket frame groove. The threaded shaft serves as the driving component of the scraper assembly, and controls the linear movement of the slider by rotation, thereby adjusting the gap between the scraper and the inner wall of the filter cartridge.

[0009] Preferably, the scraping component includes a bearing seat that passes through a through hole behind the support plate. A nut is threaded onto the left end of the bearing seat, and one side of the nut abuts against the surface of the support plate. A blade is bolted to the right side of the bearing seat. The scraping component is the part that directly performs the scraping operation. The blade is designed to be detachable for easy replacement and maintenance. The fit between the bearing seat and the nut allows for adjustment of the angle and position of the blade.

[0010] Preferably, a locking bolt is vertically inserted into the top of the support plate through a threaded hole. The bottom end of the locking bolt shaft is provided with a rubber pad end with a groove, and the rubber pad end is attached to the threaded surface of the shaft end of the bearing seat. The locking bolt is used to fix the position of the scraping part and prevent the blade from shifting due to vibration or water flow impact during operation.

[0011] Preferably, a rinsing section is provided at the center of the edge of the water collection bucket frame. The rinsing section includes a support fixed to the surface of the water collection bucket. Two clamping rings are provided on the inner side of the support, and a spray pipe for rinsing the filter cartridge is provided between the two clamping rings. The rinsing section sprays water through the spray pipe to backwash the surface of the filter cartridge, remove residual impurities, and restore the permeability of the filter cartridge.

[0012] Preferably, the support has a T-shaped vertical cross-section, and the surface of the spray pipe is provided with several flushing nozzles, which are inclined downwards. The inclined downward nozzle design concentrates the water flow to impact the surface of the filter cartridge, thereby improving the flushing efficiency.

[0013] This utility model has at least the following beneficial effects: 1. This device, through the design of a rotating filter cartridge, combined with the synergistic effect of the scraper assembly and the flushing section, can continuously intercept fine suspended solids, fibers, hair and other impurities in sewage. At the same time, it automatically scrapes and flushes the surface of the filter cartridge pores, effectively preventing the filter screen from clogging and significantly improving filtration efficiency and system continuous operation time.

[0014] 2. This device uses gears to drive the filter cartridge to rotate and controls the displacement of the scraper assembly and the automatic flushing of the spray pipe through a threaded shaft, realizing automated operation of filtration, cleaning and maintenance, reducing manual intervention and frequent shutdowns, and reducing maintenance workload and energy consumption.

[0015] 3. The device features a modular design, including guide pipes for the water collection hopper, bearing ring supports for the screen assembly, and adjustable scraping components. This makes the device easy to install, debug, and maintain, suitable for industrial, municipal, and environmental water treatment scenarios of different scales, and enhances the versatility and stability of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the external structure of a wastewater filtration impurity interception device proposed in this utility model; Figure 2 This is a schematic diagram of the external disassembly structure of a wastewater filtration impurity interception device proposed in this utility model; Figure 3 This is a top view of the scraper assembly in a wastewater filtration impurity interception device proposed in this utility model; Figure 4 This is a partial disassembly diagram of the scraper assembly in a wastewater filtration impurity interception device proposed in this utility model; Figure 5 This is a three-dimensional structural diagram of the locking bolt in a wastewater filtration impurity interception device proposed in this utility model. Figure 6 This is a three-dimensional bottom view of the flushing section in a wastewater filtration and impurity interception device proposed in this utility model; Figure 7 This is a three-dimensional bottom view of the screen group in a sewage filtration and impurity interception device proposed in this utility model.

[0018] In the picture: 1. Water collection hopper; 2. Scraper assembly; 21. Threaded shaft; 22. Support plate; 23. Scraper component; 231. Shaft seat; 232. Blade; 233. Nut; 234. Locking bolt; 24. Slider; 3. Flushing section; 31. Support; 32. Clamping ring; 33. Spray pipe; 4. Screen assembly; 41. Filter cartridge; 42. Bearing ring; 43. Support leg. Detailed Implementation

[0019] 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Reference Figure 1-7 A wastewater filtration and impurity interception device, comprising, Water collection hopper 1 includes a water collection hopper frame and a guide channel pipe. A groove is provided at the center of the right side of the hopper frame, and the guide channel pipe is fixed inside the groove by bolts. The screen assembly 4 includes a filter cylinder 41 for screening impurities. The filter cylinder 41 is rotatably mounted inside two bearing rings 42 on both sides. Two support legs 43 are symmetrically connected on the left and right sides of the bearing rings 42 for support. The support legs 43 are fixed to the edge of the bucket frame of the water collection bucket 1 by bolts. One side of the filter cylinder 41 is connected to an external gear drive device through teeth arranged around it to control the rotation of the filter cylinder 41.

[0021] A movable scraper assembly 2 is movably arranged on the left side of the bucket frame of the water collection bucket 1. The scraper assembly 2 includes a slider 24 movably installed in the slide groove of the bucket frame of the water collection bucket 1, and a support plate 22 is connected to the top of the slider 24. A rotatable and adjustable scraping component 23 is provided on the inner side of the top of the support plate 22.

[0022] The slider 24 has a threaded shaft 21 threaded from right to left through a threaded hole inside, and one end of the threaded shaft 21 is rotatably installed on the inner wall of the water collection bucket 1 frame slide groove.

[0023] The scraping component 23 includes a bearing 231 that passes through the support plate 22 through a through hole. A nut 233 is threaded on the left end of the bearing 231, and one side of the nut 233 abuts against the surface of the support plate 22. A blade 232 is bolted to the right side of the bearing 231.

[0024] A locking bolt 234 is vertically inserted into the top of the support plate 22 through a threaded hole. The bottom end of the locking bolt 234 is provided with a grooved rubber pad end, and the rubber pad end is attached to the threaded surface of the shaft end of the bearing seat 231.

[0025] A rinsing section 3 is provided at the center of the edge of the water collection hopper 1. The rinsing section 3 includes a support 31 fixed to the surface of the water collection hopper 1. Two clamping rings 32 are provided on the inner side of the support 31, and a spray pipe 33 for rinsing the filter cartridge 41 is provided between the two clamping rings 32.

[0026] The support 31 has a T-shaped vertical cross section, and the surface of the spray pipe 33 is provided with several flushing nozzles, which are inclined downwards.

[0027] The water collection hopper 1 serves as the inlet and initial collection device for sewage. It guides the sewage evenly into the filter cartridge 41 through the guide pipe, ensuring uniform water flow distribution and avoiding localized impacts that could reduce the filtration effect. The grooved design of the hopper frame facilitates the quick installation and replacement of the guide pipe, improving the maintainability of the equipment. As the core filtration component, the filter cartridge 41 uses rotational motion to intercept solid suspended matter, fibers, and other impurities in the sewage on its inner wall. The rotational motion also helps to distribute impurities evenly and prevents localized blockages. The bearing ring 42 and the support leg 43 provide a stable support structure, ensuring that the filter cartridge 41 remains balanced during high-speed rotation and extending the service life of the equipment.

[0028] The scraper assembly 2 is used to remove entangled impurities such as hair and fibers adhering to the inner wall of the filter cartridge 41. The displacement of the slider 24 in the groove drives the scraper 23 to approach or move away from the inner wall of the filter cartridge 41, achieving precise scraping and avoiding filter screen blockage caused by impurity accumulation, thus maintaining filtration efficiency. The threaded shaft 21 serves as the driving component of the scraper assembly 2. By rotating, it controls the linear movement of the slider 24, thereby adjusting the gap between the scraper 23 and the inner wall of the filter cartridge 41. This mechanical transmission method is simple and reliable, facilitates automated control, and ensures that the scraper assembly 2 works in the optimal position.

[0029] The scraping component 23 is the part that directly performs the scraping operation. The blade 232 is detachable for easy replacement and maintenance. The fit between the bearing 231 and the nut 233 allows for adjustment of the angle and position of the blade 232 to adapt to different impurity types and filter cartridge 41 conditions, thereby improving the scraping effect. The locking bolt 234 is used to fix the position of the scraping component 23, preventing the blade 232 from shifting due to vibration or water flow impact during operation. The rubber pad design of the locking bolt 234 increases friction, avoids wear caused by direct metal-to-metal contact, and improves the durability of the equipment.

[0030] The rinsing section 3 sprays water through the spray pipe 33 to backwash the surface of the filter cartridge 41, remove residual impurities, and restore the permeability of the filter cartridge 41. The T-shaped structure of the support 31 provides stable support, and the clamp ring 32 allows the spray pipe 33 to flexibly adjust its angle to ensure comprehensive rinsing coverage. The downward-sloping nozzle design concentrates the water flow to impact the surface of the filter cartridge 41, improving rinsing efficiency while avoiding water splashing and reducing water waste. The spray pipe 33 is connected to an external water pump and water tank to achieve continuous automatic rinsing, further reducing maintenance requirements.

[0031] Working principle: According to Figure 1 , Figure 3 and Figure 7As shown, during use, a gear that meshes with the teeth of the filter cylinder 41 is set on the side of the frame of the water collection hopper 1. The gear shaft is connected to an external drive device. The filter cylinder 41 is rotated in the bearing ring 42 by the gear meshing teeth, and the sewage is guided to the guide channel of the water collection hopper 1. The sewage is guided into the filter cylinder 41. An appropriate height blocking ring is set on both ends of the inner wall of the filter cylinder 41. After the sewage passes through the rotating filter cylinder 41, it enters the frame of the water collection hopper 1. At the same time, the rotation of the filter cylinder 41 can intercept impurities and prevent impurities from accumulating in the same area and forming a blockage. Secondly, according to Figure 3 and Figure 4 As shown, by rotating the threaded shaft 21, the threaded shaft 21 can drive the slider 24 to move in the groove of the water collection hopper 1 frame. The slider 24 can drive the support plate 22 to move, and the support plate 22 can drive the scraper 23 to move, driving the blade 232 to approach the inner wall of the filter cylinder 41, so that the blade 232 and the filter cylinder 41 maintain a certain gap. When the filter cylinder 41 rotates, the blade 232 can wrap around the filamentous impurities inside the filter cylinder 41 and scrape the debris that is stacked and adhered to a certain thickness. At the same time, according to Figure 6 As shown, the spray pipe 33 is rotatably installed inside the clamping ring 32, so that one end of the spray pipe 33 shaft is connected to a water tank containing a water pump through a water pipe. Water flows from the flushing nozzle of the spray pipe 33 to flush the pores on the surface of the filter cartridge 41, preventing impurities from clogging the pores of the filter cartridge 41.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wastewater filtration and impurity interception device, characterized in that, include, Water collection hopper (1), which includes a water collection hopper frame and a guide channel pipe, wherein a groove is provided at the center of the right side of the hopper frame, and the guide channel pipe is fixed inside the groove by bolts; The screen assembly (4) includes a filter cylinder (41) for screening impurities. The filter cylinder (41) is rotatably mounted inside two bearing rings (42) on both sides. Two support legs (43) are symmetrically connected on the left and right sides of the bearing rings (42) and are fixed to the edge of the bucket frame of the water collection bucket (1) by bolts. One side of the filter cylinder (41) is connected to an external gear drive device through teeth arranged around it to control the rotation of the filter cylinder (41).

2. The wastewater filtration impurity interception device according to claim 1, characterized in that, The left side of the water collection bucket (1) is provided with a movable scraper assembly (2). The scraper assembly (2) includes a slider (24) that is movably installed in the slide groove of the water collection bucket (1) frame. The top of the slider (24) is connected to a support plate (22). The inner side of the top of the support plate (22) is provided with a rotatable and adjustable scraper (23).

3. The wastewater filtration impurity interception device according to claim 2, characterized in that, The slider (24) has a threaded shaft (21) threaded from right to left through a threaded hole inside, and one end of the threaded shaft (21) is rotatably installed on the inner wall of the trough of the water collection bucket (1).

4. The wastewater filtration impurity interception device according to claim 2, characterized in that, The scraping component (23) includes a bearing (231) that passes through a through hole through the support plate (22). A nut (233) is threaded on the left end of the bearing (231), and one side of the nut (233) abuts against the surface of the support plate (22). A blade (232) is bolted to the right side of the bearing (231).

5. A wastewater filtration impurity interception device according to claim 4, characterized in that, The top of the support plate (22) is vertically inserted with a locking bolt (234) through a threaded hole. The bottom end of the locking bolt (234) is provided with a rubber pad with a groove, and the rubber pad is attached to the threaded surface of the shaft end of the bearing seat (231).

6. The wastewater filtration impurity interception device according to claim 1, characterized in that, A flushing section (3) is provided at the center of the frame of the water collection hopper (1). The flushing section (3) includes a support (31) fixed on the surface of the water collection hopper (1). Two clamping rings (32) are provided on the inner side of the support (31), and a spray pipe (33) for flushing the filter cartridge (41) is provided between the two clamping rings (32).

7. A wastewater filtration impurity interception device according to claim 6, characterized in that, The support (31) has a T-shaped vertical cross section and the surface of the spray pipe (33) is provided with several flushing spray holes, which are inclined downwards.

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