Split-hole plate type trash screen

Abstract

The application provides a split-hole plate type grid cleaner and relates to the technical field of water treatment equipment, which solves the technical problems of easy clogging, low interception efficiency and grid residue leakage in the prior art. The device is a split-hole plate type grid cleaner, which comprises a grid mechanism, a plurality of alternately arranged first plates and second plates, a plurality of filter holes respectively arranged on the contact sidewalls of the first plates and the second plates, a box body composed of two symmetrically arranged box plates, a plurality of back-shaped sliding grooves respectively arranged on the opposite inner sidewalls of the two box plates, a cleaning mechanism for automatically cleaning the first plates and the second plates, a conveying system comprising a transmission conveying mechanism and a cleaning conveying mechanism, the transmission conveying mechanism is used for driving the first plates and the second plates to circularly move along the back-shaped sliding grooves, and the cleaning conveying mechanism is used for accelerating the driving of the plates when the plates reach below the cleaning device, so that the first plates and the second plates are separated, and the cleaning device can efficiently clean the surfaces of the plates.

Description

A split-type perforated bar screen cleaner Technical Field

[0001] This invention relates to the field of water treatment equipment technology, and in particular to a split-type perforated plate bar screen cleaner. Background Technology

[0002] In water treatment systems, bar screens serve as a crucial pretreatment unit for ensuring stable system operation. Their primary function is to remove larger floating and suspended solids from wastewater. Based on the spacing between the bars, bar screens can be categorized into coarse, fine, and ultrafine screens, each designed to trap suspended solids of different sizes, protecting subsequent treatment facilities from clogging or damage. Specifically:

[0003] Coarse screen: The spacing between the bars is 10~20mm. It is used to intercept large suspended solids and ensure that subsequent equipment such as pipes, water pumps and aeration systems of grit chambers are not blocked.

[0004] Fine screen: The spacing between the screen bars is 5~10mm, which further removes floating objects and suspended debris from the sewage and maintains the stable operation of the sewage treatment system.

[0005] Ultrafine grid: The grid spacing is 1~2mm. It is used in separation membrane or biofilm processes to reduce the risk of membrane fibers and fillers being blocked and entangled by fine particles and fibers.

[0006] However, traditional fine and ultrafine bar screens have the following significant problems:

[0007] Mesh clogging is common: For fine screens of the internal flow rotary and drum types, although they can effectively reduce screen residue leakage, the mesh or perforated plate structure they use can easily cause suspended matter (such as inorganic particles, grease particles, and fiber balls) to get stuck on the surface. This is difficult to completely remove by gravity or high-pressure water washing. Long-term accumulation will reduce the flow area and increase the screen resistance.

[0008] Low retention efficiency: For bar-type grids, although the short side spacing of the rectangular bars meets the design requirements, the long side spacing is greater than the bar spacing, resulting in a low retention rate for strip-shaped impurities or fibers, which affects the filtration effect.

[0009] Screenings leakage: Common rotary rake and rotary orifice plate type fine screens, due to insufficient weight of the intercepted impurities, have difficulty falling onto the screenings conveyor when returning from a high position, causing some impurities to enter subsequent channels with the water flow, reducing the overall interception efficiency.

[0010] To overcome the above problems, several improved bar screen designs have been developed for the market, such as:

[0011] Patent CN217148596U proposes a bar screen with a telescopic structure, which can collect floating objects of different sizes by adjusting the mesh spacing through an adjustment mechanism. However, its bar screen is relatively fixed and lacks effective screen cleaning equipment, so the screen cleaning effect is limited.

[0012] Patent CN210751593U describes a bar screen machine that can filter sewage. The spacing is adjusted by combining movable and fixed plates, but it is more suitable for bar-type filtration and is difficult to efficiently intercept fine particles and fibers.

[0013] Patent CN208965511U describes a telescopic bar screen cleaner, which achieves bar spacing adjustment, but has low cleaning efficiency because it cannot rotate.

[0014] Patent CN106430350A provides a curved bar screen cleaning machine that uses scrapers to clean screen debris, but it also faces the problem of incomplete screen debris removal.

[0015] Based on the above background, the present invention aims to provide a split-cleaning perforated plate bar screen cleaner. Through optimized perforated plate structure design and efficient cleaning mechanism, it solves the problems of clogging, low interception efficiency and screen residue leakage in the prior art, thereby improving the filtration performance and maintenance convenience of the bar screen. Summary of the Invention

[0016] The purpose of this invention is to provide a split-type perforated plate bar screen to solve the technical problems of easy clogging of the mesh, low interception efficiency, and screenings leakage in the prior art. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0017] To achieve the above objectives, the present invention provides the following technical solution:

[0018] The present invention provides a split-type perforated plate bar screen cleaner, comprising:

[0019] The grid mechanism includes multiple alternating first plates and second plates. The contact sidewalls of the first plates and the second plates are respectively provided with multiple filter holes. When the first plates and the second plates are spliced ​​together, the corresponding filter holes can be aligned with each other to form a complete filter channel.

[0020] The enclosure consists of two symmetrically arranged panels connected by at least one fixing rod to ensure the stability and rigidity between the panels.

[0021] The sliding guide has a spiral groove on the inner sidewall of the two boxes to guide multiple first plates and second plates to slide along a preset path, so that the plates can move cyclically inside the box.

[0022] The cleaning mechanism, installed on the top of the panel, is used to automatically clean the first and second panels passing below it, ensuring that the panel surfaces are clean and preventing dirt from clogging the filter holes.

[0023] The conveying system includes a drive conveying mechanism and a cleaning conveying mechanism:

[0024] The transmission and conveying mechanism is used to drive the first plate and the second plate to move cyclically along the loop groove, maintaining a tight fit between the plates to achieve an effective filtration function;

[0025] The cleaning conveying mechanism is used to accelerate the drive of the plate when it reaches below the cleaning device, so that the first plate and the second plate are separated, so that the cleaning device can efficiently clean the surface of the plate.

[0026] Furthermore, the box panel is arranged in a parallelogram shape, and the four sides of the box panel are the bottom surface, the water-facing surface, the top surface and the back surface connected in sequence, respectively. The spiral groove is opened along the circumferential direction of the parallelogram.

[0027] Furthermore, the transmission and conveying mechanism is used to drive the first plate and the second plate to move in the loop-shaped chute located on the back surface, bottom surface and front surface of the water, and the cleaning and conveying mechanism is used to drive the first plate and the second plate to move in the loop-shaped chute on the top surface.

[0028] Furthermore, the transmission and conveying mechanism includes two driving wheels and two driven wheels. The two driving wheels are respectively located on the inner side of the corner connecting the back surface and the bottom surface and on the upper part of the front surface. The two driven wheels are respectively located on the inner side of the corner connecting the front surface and the bottom surface and on the back surface. A transmission chain for driving the first plate and the second plate to move is provided on the outer side of the two driving wheels and the two driven wheels.

[0029] Furthermore, the cleaning and conveying mechanism includes two cleaning drive wheels and two cleaning driven wheels. The two cleaning drive wheels are respectively located inside the corner connecting the water-facing surface and the top surface and inside the corner connecting the back water surface and the top surface. The two cleaning driven wheels are respectively located on the upper part of the water-facing surface and the back water surface, and are both located above the transmission chain. A cleaning chain for driving the first plate and the second plate to move is provided on the outer side of the two cleaning drive wheels and the two cleaning driven wheels.

[0030] Furthermore, the first plate and the second plate are respectively provided with slots, and the transmission chain and the cleaning chain are respectively provided with blocks for correspondingly engaging in the slots, so that the transmission chain and the cleaning chain drive the first plate and the second plate to move.

[0031] Furthermore, the spacing between two adjacent blocks on the cleaning chain is greater than the spacing between two adjacent blocks on the drive chain.

[0032] Furthermore, both the first plate and the second plate are cubic structures, meaning that the width and thickness of the first plate and the second plate are rectangular.

[0033] Furthermore, the cleaning mechanism includes a nozzle and a roller brush. An operating platform is installed on the top of the housing. The nozzle is located at the lower end of the operating platform for rinsing the separated first and second plates with water. The roller brush is rotatably installed below the operating platform for cleaning impurities on the first and second plates by rolling.

[0034] Furthermore, the cleaning mechanism also includes a collection box and a screw conveyor. The collection box is fixedly installed inside the box and located below the nozzle and the roller brush, and clamps the first plate and the second plate transported by the cleaning conveyor in the middle to collect the cleaned impurities. The screw conveyor extends from the side wall of the box to the outside to transport and discharge the cleaned impurities.

[0035] This invention provides a split-type perforated plate bar screen cleaner, which aims to solve the problems of easy clogging of the mesh, low interception efficiency and leakage of screenings in the prior art, so as to achieve better filtration effect.

[0036] Significantly reduces the risk of mesh clogging

[0037] Optimized perforated plate structure design: By employing alternating first and second plates with filter holes on the contact sidewalls, a complete filter channel is formed when the two plates are joined together. This design avoids the problem of traditional single-layer perforated plates or grids easily trapping suspended matter, greatly reducing the possibility of mesh clogging.

[0038] Highly efficient cleaning mechanism: The cleaning mechanism is installed on the top of the panel and can automatically clean the first and second panels as they pass underneath. In particular, the cleaning conveyor mechanism accelerates the separation of the panels, making the cleaning more thorough and further preventing blockages caused by dirt accumulation.

[0039] Improve interception efficiency

[0040] Precise control of filter pore size: Since each filter pore is formed when two plates are spliced ​​together, the size of the filter pore can be controlled more precisely to ensure that it meets the design requirements, thereby effectively intercepting suspended matter of the target size, especially fine particles and fibers with a higher interception rate.

[0041] Tightly fitted plate design: The transmission and conveying mechanism ensures a tight fit between the first and second plates, eliminating the problem of gaps that may appear on the long side of the plates, improving the interception effect of strip-shaped impurities or fibers, and enhancing the overall filtration performance.

[0042] Reduce screenings leakage

[0043] Separate cleaning and conveying: When the cleaning and conveying mechanism reaches below the cleaning device, it accelerates the separation of the plates. This not only helps with cleaning, but also ensures that the intercepted impurities fall smoothly onto the screenings conveyor under gravity, avoiding screenings leakage due to insufficient weight.

[0044] The cyclic movement design: The sliding guide system allows the plates to circulate within the housing, maintaining continuous operation and reducing the risk of screenings leakage caused by downtime for cleaning.

[0045] Enhance maintenance convenience

[0046] Split-type structure: The split perforated plate design makes each component easy to disassemble and replace, reducing maintenance costs and time. At the same time, the automated operation of the cleaning mechanism reduces the need for manual intervention and improves the convenience of daily maintenance.

[0047] In summary, the split-type perforated plate bar screen provided by this invention, through its innovative structural design and efficient cleaning mechanism, successfully solves the problems of easy clogging of the mesh, low interception efficiency, and screenings leakage existing in the prior art, significantly improving the pretreatment effect and operational stability of the water treatment system. Furthermore, its modular and split-type construction greatly facilitates the maintenance and management of the equipment. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 is a side view provided in an embodiment of the present invention;

[0050] Figure 2 is a front view provided in an embodiment of the present invention:

[0051] Figure 3 is a cross-sectional view of the box panel provided in an embodiment of the present invention;

[0052] Figure 4 is a schematic diagram of a partial conveying system structure provided in an embodiment of the present invention;

[0053] Figure 5 is a schematic diagram of the splicing of the first plate and the second plate provided in an embodiment of the present invention;

[0054] Figure 6 is a side view of the splicing of the first plate and the second plate provided in an embodiment of the present invention;

[0055] Figure 7 is a cross-sectional view of the box provided in an embodiment of the present invention;

[0056] Figure 8 is a schematic diagram of a partial cleaning mechanism structure provided in an embodiment of the present invention.

[0057] Explanation of reference numerals in the attached drawings: 100, box body; 110, box plate; 120, U-shaped chute; 130, water-facing surface; 140, top surface; 150, water-repellent surface; 160, bottom surface; 200, grating mechanism; 210, first plate; 220, second plate; 230, slot; 240, filter hole; 250, locking block; 300, cleaning mechanism; 310, collection box; 320, screw conveyor; 330, operating platform; 340, nozzle; 350, roller brush; 400, transmission and conveying mechanism; 410, conveying drive wheel; 420, conveying driven wheel; 430, transmission chain; 500, cleaning conveying mechanism; 510, cleaning drive wheel; 520, cleaning driven wheel; 530, cleaning chain. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0059] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of this invention, it should also be noted that, 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The present application will be further described in detail below with reference to Figures 1-8. The embodiments of the present application disclose a split perforated plate bar screen for cleaning.

[0062] Referring to Figures 1 and 2, a split-type perforated plate bar screen cleaner includes a housing 100, a bar screen mechanism 200, a cleaning mechanism 300, and a conveying system.

[0063] The housing 100 includes two symmetrically arranged parallelogram-shaped panels 110, connected by at least one fixing rod. The fixing rod connects and secures the two symmetrically arranged panels 110 to each other. The side walls forming the parallelogram are, in sequence, a bottom surface 160, a water-facing surface 130, a top surface 140, and a back surface 150, giving the housing 100 higher structural strength and rigidity. This allows it to maintain stable operation in complex water treatment environments and avoids the malfunctions caused by structural instability in traditional bar screens.

[0064] The bar screen mechanism 200 is designed to circulate around the bottom surface 160, the water-facing surface 130, the top surface 140, and the back surface 150 of the tank 100. Specifically, when water flows in, it first contacts the water-facing surface 130 of the tank plate 110, where the bar screen mechanism 200 begins to function, performing preliminary filtration of the incoming wastewater. Wastewater can smoothly enter the treatment zone with minimal resistance, improving filtration efficiency. Because the bar screen mechanism 200 moves continuously throughout the process, wastewater can be uniformly treated using bar screen mechanisms 200 in different areas, avoiding localized clogging and further improving filtration efficiency.

[0065] The cleaning mechanism 300 is installed on the top of the housing 100 and above the top surface 140 of the housing panel 110. Whenever the grille mechanism 200 reaches the top surface 140, the cleaning mechanism 300 thoroughly cleans the impurities adhering to its surface, ensuring that the grille mechanism 200 is always clean and maintaining high filtration performance.

[0066] The conveying system is used to drive the grid mechanism 200 to move smoothly along a predetermined path of the box plate 110, ensuring that it reciprocates along the parallelogram circumference of the box plate 110.

[0067] Referring to Figures 3 and 4, the bar screen mechanism 200 comprises multiple alternating first plates 210 and second plates 220, each plate having multiple filter holes 240 on its contact sidewall. When the first plates 210 and second plates 220 are joined, the corresponding filter holes 240 align with each other to form a complete filter channel. The filter holes 240 are semi-circular openings with a diameter ranging from 1 to 5 mm and a depth of 5 to 15 mm. This pore size design effectively intercepts larger particulate pollutants while ensuring smooth water flow.

[0068] Both the first plate 210 and the second plate 220 adopt a cubic structure with rectangular cross-sections in width and thickness. This design not only ensures a tight fit between the plates but also facilitates installation.

[0069] The angle between the water-facing surface 130 and the water surface is generally 60 degrees. When the internal flow method is adopted, the water flows in through the filter hole 240 between the two parallel plates, and the flow direction is perpendicular to the plane of the plate.

[0070] Referring to Figures 5 and 6, the surfaces of the first plate 210 and the second plate 220 are specially treated to maintain a smooth surface and prevent contaminant adhesion. This helps reduce cleaning frequency and extend equipment lifespan. The first plate 210 and the second plate 220 are preferably made of polymer or stainless steel. Polymers have good corrosion resistance and anti-aging properties, while stainless steel has higher mechanical strength and wear resistance.

[0071] Two inner walls of the two chamber panels 110 are respectively provided with spiral grooves 120 to guide multiple first plates 210 and second plates 220 to slide along a preset path. The groove design ensures the smoothness and accuracy of the plates during their cyclical movement within the chamber 100. The spiral grooves 120 are arranged circumferentially along the parallelogram of the chamber panels 110, so that the first plates 210 and second plates 220 pass sequentially through the bottom surface 160, the water-facing surface 130, the top surface 140, and the back surface 150 during their movement. This path design not only optimizes the water flow path but also ensures that each plate can fully participate in the filtration process.

[0072] As the first plate 210 and the second plate 220 pass the water-facing surface 130, they come close together under the influence of gravity, ensuring the consistency of the pore size of the filter holes 240. This design guarantees the stability and reliability of the filtration channel, maintains high filtration accuracy, and prevents fluctuations in filtration effect due to changes in pore size. If it is necessary to change the filtration effect, simply replace the first plate 210 and the second plate 220 with different pore sizes. This enhances the versatility and adjustability of the equipment, meeting the needs of different application scenarios.

[0073] Referring to Figures 3 and 7, the conveying system includes a transmission conveying mechanism 400 and a cleaning conveying mechanism 500:

[0074] The transmission and conveying mechanism 400 is located at the lower part of the housing 100. It is mainly used to drive the first plate 210 and the second plate 220 located on the back surface 150, the bottom surface 160 and the front surface 130 to move along the loop 120, keeping the first plate 210 and the second plate 220 in close contact during the movement. Especially on the front surface 130, it ensures that the filter holes 240 are aligned to form a complete filter channel, thereby achieving efficient wastewater filtration.

[0075] The cleaning and conveying mechanism 500 is located on the upper part of the housing 100 and is mainly used to drive the first plate 210 and the second plate 220 located at the corner of the water-facing side 130 near the top surface 140 and at the corner of the top surface 140 to the back surface 150. Its main function is to accelerate the driving of the plates when they pass the top surface 140, so that the first plate 210 and the second plate 220 are separated, so that the cleaning mechanism 300 can efficiently clean the impurities on the surface of the plates and between the plates.

[0076] The cleaning conveyor mechanism 500 operates at a higher speed than the transmission conveyor mechanism 400, enabling it to separate the first plate 210 from the second plate 220 in a short time, ensuring that impurities on the plate surface and in the gaps are thoroughly removed. The cleaning conveyor mechanism 500, through accelerated drive, widens the plate spacing to over 3mm, allowing the cleaning mechanism 300 to easily enter the gaps between the plates for deep cleaning, effectively preventing dirt accumulation and extending equipment lifespan. The spacing of over 3mm ensures that the cleaning device can completely cover the plate surface and gaps, ensuring thorough cleaning of every corner and avoiding cleaning dead zones.

[0077] The properly controlled spacing between the plates ensures that the plates do not need to be re-attached during the cleaning process, preventing removed impurities from re-adhering to the plate surface and guaranteeing the cleaning quality.

[0078] The linear speed of the cleaning conveyor mechanism 500 is 3-5 times the speed limit of the transmission conveyor mechanism 400. This speed difference design allows the high speed of the cleaning conveyor mechanism 500 to quickly separate the plates as they move from the water-facing surface 130 to the top surface 140, creating sufficient gaps to allow the cleaning mechanism 300 to enter the gaps for cleaning. Through rapid separation, impurities on the plate surface and in the gaps can be captured and removed by the cleaning device in a short time, reducing the chance of contaminant residue and ensuring cleaning effectiveness.

[0079] Referring to Figures 4 and 7, the transmission and conveying mechanism 400 includes two driving wheels 410 and two driven wheels 420, as well as a transmission chain 430 for driving the first plate 210 and the second plate 220 to move. The transmission chain 430 is used in conjunction with the driving wheels 410 and the driven wheels 420.

[0080] Two conveying drive wheels 410 are respectively located on the inner side of the corner connecting the back water surface 150 and the bottom surface 160 and on the upper part of the front water surface 130. Each conveying drive wheel 410 is equipped with a drive motor to drive the conveying drive wheel 410 to rotate, thereby driving the transmission chain 430 to reciprocate.

[0081] Two driven conveyor wheels 420 are respectively located on the inner side of the corner connecting the water-facing side 130 and the bottom side 160 and on the upper part of the back side 150. The main function of the driven conveyor wheels 420 is to ensure that the transport path of the transmission chain 430 is consistent with the loop chute 120 inside the housing 100, so as to ensure that the plate does not deviate from the predetermined track during the movement.

[0082] The first plate 210 and the second plate 220 are respectively provided with slots 230, and the outer side of the transmission chain 430 is provided with multiple locking blocks 250, which correspond to the slots 230 on the first plate 210 and the second plate 220. When the transmission chain 430 rotates, the locking blocks 250 will engage in the slots 230 of the plates, thereby driving the plates to move synchronously.

[0083] The design of the locking block 250 and the locking slot 230 ensures precise positioning of the plate during movement, avoiding the risk of the plate shifting or falling off during transportation. The continuous movement of the drive chain 430 ensures smooth transmission of the plate, especially during the transition between the back surface 150, bottom surface 160 and front surface 130, ensuring tight contact of the plate and guaranteeing the stability of the filter holes 240.

[0084] When the drive wheel 410 starts, the transmission chain 430 begins to rotate, first receiving the first plate 210 and the second plate 220 after cleaning from the upper part of the backwater side 150. As the transmission chain 430 rotates, the locking block 250 gradually engages in the plate's slot 230, and the transmission chain 430 carries the plates in synchronous motion. The plates travel along the path of the transmission chain 430, passing the bottom surface 160 of the housing 100 to reach the frontwater side 130. During movement on the frontwater side 130, due to gravity, the first plate 210 and the second plate 220 will fit tightly together, ensuring the alignment of the filter holes 240 and forming a stable filter channel.

[0085] When the filter plates move at an angle of 130° towards the water, gravity causes them to naturally adhere, reducing the need for additional power and ensuring the stability of the filter holes 240, thus improving filtration efficiency. Gravity-assisted adhesion reduces the energy required to drive the system, lowering system energy consumption and improving overall energy efficiency.

[0086] When the first plate 210 and the second plate 220 reach the upper part of the water-facing surface 130, the locking block 250 of the transmission chain 430 disengages from the locking groove 230 of the plate. At this time, the plate continues to move along the loop chute 120 under the push of the first plate 210 and the second plate 220 below it, and gradually approaches the cleaning conveying mechanism 500.

[0087] The separate design of the card block 250 and the card slot 230 ensures seamless connection between the plates in different working areas, avoids jamming, and guarantees continuous operation of the system. After the plates are disengaged from the drive chain 430, they can still continue to move by the push of the plates below, ensuring efficient plate transmission and shortening the entire cycle.

[0088] Referring to Figures 4 and 7, the cleaning conveying mechanism 500 includes two cleaning drive wheels 510 and two cleaning driven wheels 520, as well as a cleaning chain 530 for driving the first plate 210 and the second plate 220 to move. The cleaning chain 530 is used in conjunction with the cleaning drive wheels 510 and the cleaning driven wheels 520.

[0089] Two cleaning drive wheels 510 are respectively located on the inner side of the corner connecting the water-facing surface 130 and the top surface 140, and on the inner side of the corner connecting the back surface 150 and the top surface 140. Each cleaning drive wheel 510 is also equipped with a drive motor to drive the cleaning drive wheel 510 to rotate, thereby driving the transmission chain 430 to reciprocate. By setting cleaning drive wheels 510 on the water-facing surface 130 and the back surface 150 respectively, a smooth transition of the plate between different working areas is ensured. The independent drive motor can flexibly adjust the rotation speed according to the actual working conditions, ensuring the efficiency and stability of the cleaning process.

[0090] Two cleaning driven wheels 520 are respectively set on the upper part of the water-facing side 130 and the back side 150. The main function of the cleaning driven wheels 520 is to ensure that the transport path of the transmission chain 430 is consistent with the loop 120 in the housing 100, so as to prevent the plates from deviating from the predetermined track during movement.

[0091] Multiple locking blocks 250 are also provided on the outer side of the cleaning chain 530. The spacing between these locking blocks 250 is larger than the spacing between the locking blocks 250 on the drive chain 430. When the cleaning chain 530 rotates, the locking blocks 250 engage with the slots 230 of the plates, thereby separating the first plate 210 and the second plate 220 that are in contact with each other. The larger spacing between the locking blocks 250 allows the cleaning chain 530 to separate the first plate 210 and the second plate 220 in a shorter time, ensuring that the cleaning device can efficiently clean impurities on the surface of the plates and in the gaps.

[0092] The rotational speed of the cleaning chain 530 is 3-5 times greater than that of the drive chain 430. This speed difference design ensures that the plates can be quickly separated when entering the cleaning area and maintain sufficient spacing during the cleaning process, facilitating thorough cleaning by the cleaning device. The faster speed of the cleaning chain 530 allows the plates to be quickly pulled apart upon entering the cleaning area, creating sufficient gaps for the cleaning device to enter and clean between the plates. Through rapid separation, impurities on the plate surface and in the gaps can be captured and removed by the cleaning device in a short time, reducing the chance of contaminant residue and ensuring effective cleaning.

[0093] When the cleaning drive wheel 510 starts, the cleaning chain 530 begins to rotate. First, the upper part of the water-facing surface 130 receives the first plate 210 and the second plate 220 that have detached from the drive chain 430. Because the cleaning chain 530 rotates at a relatively high speed, when the locking block 250 on the cleaning chain 530 is engaged in the slot 230 of the first plate 210, the next locking block 250 with a larger spacing is engaged in the slot 230 of the second plate 220, thereby separating the first plate 210 from the second plate 220.

[0094] As the cleaning chain 530 continues to rotate, the plates are transported to the bottom of the cleaning mechanism 300 for cleaning of the first plate 210 and the second plate 220. After cleaning, the cleaning chain 530 continues to move, transporting the cleaned first plate 210 and second plate 220 to one side of the back surface 150 and detaching them from the upper part of the back surface 150.

[0095] At this time, the first plate 210 and the second plate 220 slide along the loop 120 towards the transmission chain 430 under the action of gravity, and wait for the transmission chain 430 to receive them for the next cycle.

[0096] Referring to Figures 1 and 8, the cleaning mechanism 300 includes a nozzle 340 and a roller brush 350 and is equipped with a collection box 310 and a screw conveyor 320.

[0097] An operating platform 330 is installed on the top of the housing 100, and the spray nozzle 340 and roller brush 350 are fixedly installed below the operating platform 330. The spray nozzle 340 is located in front of the roller brush 350 in the transmission direction of the drive chain 430. Its main function is to perform preliminary water rinsing on the separated first plate 210 and second plate 220.

[0098] The nozzle 340 first uses high-pressure water to rinse the first plate 210 and the second plate 220, quickly removing most of the loose impurities from the plate surfaces and laying a good foundation for subsequent cleaning by the roller brush 350. Through water rinsing, the impurities on the plate surfaces are softened and loosened, reducing the friction between the roller brush 350 and the plates during cleaning and extending the service life of the roller brush 350. The high-pressure water flow from the nozzle 340 can cover the entire surface of the plates, ensuring that every corner is thoroughly rinsed and improving overall cleaning efficiency.

[0099] The roller brush 350 is located behind the nozzle 340. Its main function is to clean residual impurities on the first plate 210 and the second plate 220 after they have been rinsed by the water flow. Through its rotational motion, the roller brush 350 can penetrate deep into the surface and gaps of the plates to remove stubborn dirt and deposits, ensuring that the plate surface is clean and free of residue.

[0100] This allows it to apply pressure evenly to the surface of the cleaning plate, avoiding incomplete cleaning or excessive wear in certain areas and ensuring consistent cleaning quality. The rotation direction of the roller brush 350 is opposite to the movement direction of the cleaning plate, which effectively prevents removed impurities from re-adhering to the plate surface and avoids secondary contamination.

[0101] The collection box 310 is fixedly installed inside the housing 100, located below the nozzle 340 and the roller brush 350. Its main function is to collect impurities generated during the cleaning process and to hold the first plate 210 and the second plate 220 in the middle to prevent impurities from splashing or scattering. By holding the first plate 210 and the second plate 220 in the middle, the collection box 310 can effectively prevent impurities from entering other equipment components, avoiding the risk of equipment damage and extending the service life of the equipment.

[0102] The screw conveyor 320 extends from the side wall of the housing 100 to the outside and is used to transport and discharge impurities from the collection box 310. Its main function is to transfer the cleaned impurities from inside the housing 100 to the external processing area.

[0103] The split-type perforated bar screen cleaner provided by this invention has successfully solved the problems of easy clogging of the mesh, low interception efficiency and leakage of screenings in the prior art through innovative structural design and efficient cleaning mechanism.

[0104] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A split-type perforated plate bar screen for wastewater treatment, characterized in that, include: The grid mechanism (200) includes multiple alternating first plates (210) and second plates (220). Multiple filter holes (240) are provided on the contact sidewalls of the first plates (210) and second plates (220). When the first plates (210) and second plates (220) are joined, the corresponding filter holes (240) can align to form a complete filter channel. The housing (100) consists of two symmetrically arranged box plates (110). The two box plates (110) are connected by at least one fixed rod to ensure the stability and rigidity between the box plates (110). A sliding guide is provided on the opposite inner sidewalls of the two box plates (110) to guide the multiple first plates (210) and second plates (220) to slide along a preset path, allowing the plates to... It can circulate within the housing (100); the cleaning mechanism (300), installed on the top of the housing plate (110), is used to automatically clean the first plate (210) and the second plate (220) passing below it, ensuring that the plate surface is clean and preventing dirt from clogging the filter holes (240); the conveying system includes a transmission conveying mechanism (400) and a cleaning conveying mechanism (500): the transmission conveying mechanism (400) is used to drive the first plate (210) and the second plate (220) to circulate along the loop groove (120) to keep the plates tightly fitted to achieve effective filtration; the cleaning conveying mechanism (500) is used to accelerate the driving plate when the plate reaches below the cleaning mechanism, so that the first plate (210) and the second plate (220) are separated, so that the cleaning mechanism can efficiently clean the plate surface.

2. The split-type perforated plate bar screen as described in claim 1, characterized in that, The box plate (110) is arranged in the shape of a parallelogram. The four sides of the box plate (110) are connected in sequence as the bottom surface (160), the water-facing surface (130), the top surface (140), and the back surface (150). The spiral groove (120) is opened along the circumferential direction of the parallelogram.

3. A split-type perforated plate bar screen as described in claim 2, characterized in that, The transmission and conveying mechanism (400) is used to drive the first plate (210) and the second plate (220) to move in the loop (120) located on the back water surface (150), bottom surface (160) and front water surface (130) side, and the cleaning and conveying mechanism (500) is used to drive the first plate (210) and the second plate (220) to move in the loop (120) on the top surface (140).

4. A split-type perforated plate bar screen as described in claim 3, characterized in that, The transmission and conveying mechanism (400) includes two driving wheels (410) and two driven wheels (420). The two driving wheels (410) are respectively located on the inner side of the corner connecting the back surface (150) and the bottom surface (160) and on the upper part of the front surface (130). The two driven wheels (420) are respectively located on the inner side of the corner connecting the front surface (130) and the bottom surface (160) and on the back surface (150). The two driving wheels (410) and the two driven wheels (420) are provided with a transmission chain (430) for driving the first plate (210) and the second plate (220) to move.

5. A split-type perforated plate bar screen cleaner according to claim 4, characterized in that, The cleaning conveying mechanism (500) includes two cleaning drive wheels (510) and two cleaning driven wheels (520). The two cleaning drive wheels (510) are respectively located on the inner side of the corner connecting the water-facing surface (130) and the top surface (140) and the inner side of the corner connecting the back water surface (150) and the top surface (140). The two cleaning driven wheels (520) are respectively located on the upper part of the water-facing surface (130) and the back water surface (150), and are both located above the transmission chain (430). The two cleaning drive wheels (510) and the two cleaning driven wheels (520) are provided with a cleaning chain (530) for driving the first plate (210) and the second plate (220) to move.

6. A split-type perforated plate bar screen as described in claim 5, characterized in that, The first plate (210) and the second plate (220) are respectively provided with slots (230), and the transmission chain (430) and the cleaning chain (530) are respectively provided with locking blocks (250) for corresponding locking in the slots (230). Thus, the transmission chain (430) and the cleaning chain (530) drive the first plate (210) and the second plate (220) to move.

7. A split-type perforated bar screen cleaning machine according to claim 6, characterized in that, The distance between two adjacent blocks (250) on the cleaning chain (530) is greater than the distance between two adjacent blocks (250) on the transmission chain (430).

8. A split-type perforated plate bar screen as described in claim 1, characterized in that, Both the first plate (210) and the second plate (220) are cubic structures, meaning that the width and thickness of the first plate (210) and the second plate (220) are rectangular.

9. A split-type perforated bar screen cleaner according to claim 1, characterized in that, The cleaning mechanism (300) includes a nozzle (340) and a roller brush (350). An operating table (330) is installed on the top of the housing (100). The nozzle (340) is located at the lower end of the operating table (330) for rinsing the separated first plate (210) and second plate (220) with water flow. The roller brush (350) is rotatably installed below the operating table (330) for cleaning impurities on the first plate (210) and second plate (220) by rolling.

10. A split-type perforated bar screen cleaner according to claim 9, characterized in that, The cleaning mechanism (300) also includes a collection box (310) and a screw conveyor (320). The collection box (310) is fixedly installed inside the box body (100) and located below the nozzle (340) and the roller brush (350), and clamps the first plate (210) and the second plate (220) transported by the cleaning conveying mechanism (500) in the middle to collect the cleaned impurities. The screw conveyor (320) extends from the side wall of the box body (100) to the outside to transport and discharge the cleaned impurities.

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