A rotary screen-type filter device

Abstract

The application provides a rotary mesh-bag type filtering device, which comprises a conical mesh bag, a blockage prevention device, a suction pump and a flushing device used for flushing the mesh holes of the conical mesh bag; the conical mesh bag has a large port and a small port, the large port of the conical mesh bag is arranged in the direction of incoming water, and the small port of the conical mesh bag is sequentially communicated with the blockage prevention device and the suction pump; the rotary mesh-bag type filtering device is further provided with a driving device, and the driving device can drive the conical mesh bag to rotate.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and more specifically, to a rotating mesh filter device. Background Technology

[0002] In industries such as energy and chemical engineering, water containing slag and other impurities is commonly filtered for reuse or discharge, placing higher demands on the treatment effect and efficiency. Existing filtration devices for cold source water intake use nylon or plastic mesh bags with 3mm mesh openings for the second and third stages. These mesh bags are tetrahedral, and most of the slag inside needs to be manually emptied from the small end. Furthermore, the mesh bags need to be periodically removed from the water for cleaning and unclogging, resulting in a short lifespan. This process requires significant manual labor, is time-consuming and inefficient, and fails to meet the requirements for automated, high-efficiency filtration. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the purpose of this invention is to provide a rotating mesh bag type filter device.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0005] A rotating mesh filter includes a conical mesh, an anti-clogging device, a suction pump, and a flushing device. The flushing device is used to flush the mesh openings of the conical mesh. The conical mesh has a large port and a small port. The large port of the conical mesh faces the incoming water direction, and the small port of the conical mesh is connected to the anti-clogging device and the suction pump in sequence. The suction pump sucks out seawater and debris from the small port of the conical mesh. The rotating mesh filter also includes a driving device that can drive the conical mesh to rotate.

[0006] Preferably, the top of both the small and large ports of the conical net are positioned above the design water level.

[0007] Preferably, when the flushing device washes the mesh of the conical net, the main line at the highest point of the conical net is completely exposed above the water surface.

[0008] Preferably, the conical mesh bag consists of several detachable mesh panels or filter screens connected by a support frame.

[0009] Preferably, the rinsing device includes a rinsing pipe and a plurality of rinsing nozzles arranged on the rinsing pipe, the rinsing pipe being located above or to the side of the conical net.

[0010] Preferably, the driving device includes a driving gear, and the conical net bag is provided with a driven gear that performs gear transmission with the driving gear. The driving gear drives the conical net bag to rotate under the drive of a driving motor or a hydraulic motor.

[0011] Preferably, the anti-clogging device is a pulverizer used to pulverize aquatic plants, animals, and debris in the water.

[0012] Preferably, the conical net bag is provided with spiral propulsion blades.

[0013] Preferably, when the conical net rotates above the water surface, the flushing device washes the attached debris in the mesh of the conical net into the water. Aquatic plants and animals and debris are collected at the small port of the conical net by the water flow, and enter the anti-clogging device for crushing under the action of the suction pump and / or the spiral propulsion blades. The crushed solid-liquid mixture is discharged through the sewage pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The rotary net filter device provided by the present invention uses water flow and spiral propulsion blades to continuously collect aquatic plants and animals and debris to the small port of the conical net. The impurities are sucked into the anti-clogging device by a suction pump for crushing. The crushed solid-liquid mixture is discharged through the sewage pipe, realizing the automated operation of the filter device, with high filtration efficiency and greatly reducing the labor costs of operation and maintenance.

[0016] 2. The rotating mesh bag filter device provided by the present invention consists of a conical mesh bag composed of a detachable mesh plate or filter screen. The rotating conical mesh bag is continuously rinsed by a rinsing device, which can prevent the mesh from clogging, ensure the seawater flow rate, and greatly improve the service life of the conical mesh bag.

[0017] 3. The rotary mesh filter device provided by the present invention features a modular design among the conical mesh, anti-clogging device, suction pump and flushing device, resulting in a high degree of integration, simple installation foundation, and short construction and commissioning cycle. Attached Figure Description

[0018] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the rotating mesh filter device in the embodiment;

[0020] Figure 2 This is a side sectional view of the rotating mesh filter device in the embodiment;

[0021] Figure 3 This is an enlarged view of part A in the side sectional view of the rotating mesh filter device in the embodiment;

[0022] Figure 4 This is a top view of the rotating mesh filter device in the embodiment;

[0023] Figure 5 This is an enlarged view of part B in the top view of the rotating mesh filter device in the embodiment;

[0024] Figure 6 This is an enlarged view of part C in the top view of the rotating mesh filter device in the embodiment;

[0025] Figure 7 This is a schematic diagram of the conical net bag in the embodiment;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1- Conical mesh bag;

[0028] 2-Anti-clogging device;

[0029] 3-Suction pump;

[0030] 4- Flushing device;

[0031] 41-Flush the pipes;

[0032] 42- Rinse nozzle;

[0033] 5-Drive gear;

[0034] 6-Support frame;

[0035] 7-Driven gear. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, all directional indications (such as up, down, left, right, front, back, bottom, etc.) in this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0039] Example

[0040] like Figure 1-7 As shown, the rotary net bag filter device provided in this embodiment includes a conical net bag 1, an anti-clogging device 2, a suction pump 3, and a flushing device 4. The rotary net bag filter device is arranged on the shore via a first support platform and a second support platform. The conical net bag 1 consists of several detachable mesh plates or filter screens connected by support frames 6. The conical net bag 1 has a large port and a small port. The top of both the large port and the small port of the conical net bag 1 are set above the design water level, ensuring that the generatrix of the highest point of the conical net bag 1 can be completely exposed above the water surface. The diameter of the large port of the conical net bag 1 is larger than the diameter of the small port. The width of the fan ring used to form the conical net bag 1 is the generatrix of the conical net bag 1. The distance from the center of the large port to the center of the small port is the height of the conical net bag 1. Figure 2 The diagram shows the generatrix and height of the conical net 1. The large port of the conical net 1 is equipped with a front support ring, which connects to the second support platform. The small port of the conical net 1 is equipped with a rear support ring, which connects to a rear support seat on the first support platform. The suction pump 3 is mounted on the first support platform and connected to the small port of the conical net 1 via a pipe. The large port of the conical net 1 faces the direction of the incoming water. The conical shape allows aquatic plants, animals, and debris to be concentrated at the small port of the conical net 1 by the water flow, facilitating suction by the suction pump 3. In actual operation, the water flow pumped by the suction pump 3 often contains debris such as plastic strips and fishing net lines, which can cause the suction pump 3 to jam. Therefore, an anti-clogging device 2 is installed between the conical net 1 and the suction pump 3 to break up debris and ensure the normal operation of the suction pump 3. Specifically, the anti-clogging device 2 is a shredder, used to shred aquatic plants, animals and debris in the water.

[0041] The rotary mesh filter device provided in this embodiment is further equipped with a drive device, which can be located at the large or small port of the conical mesh bag 1 to drive the conical mesh bag 1 to rotate. Specifically, the drive device includes a drive gear 5, and a driven gear 7 that performs gear transmission with the drive gear 5 is provided at the large or small port of the conical mesh bag 1. In this embodiment, the drive device and the driven gear 7 are located at the large port of the conical mesh bag 1. Driven by a drive motor or hydraulic motor, the drive gear 5 drives the conical mesh bag 1 to rotate about the axis where the height line of the conical mesh bag 1 is located.

[0042] The rotary net filter device provided in this embodiment includes a rinsing device 4, which comprises a rinsing pipe 41 and several rinsing nozzles 42 arranged on the rinsing pipe 41. The rinsing pipe 41 is located above or to the side of the conical net 1. The driving device drives the conical net 1 to rotate about the axis containing the height line of the conical net 1. The rinsing device 4 continuously rinses the mesh openings of the conical net 1 that are exposed above the water surface, washing away aquatic plants, animals, and debris attached to the conical net 1 into the water, keeping the mesh openings of the conical net 1 clean, preventing clogging, and ensuring the flow rate of water.

[0043] In this embodiment, a filter screen is provided on the second support platform, covering the large port of the conical net bag 1. The nylon net bags used in the prior art have rectangular water inlets. Compared to circular inlets with a diameter equal to the side length of the rectangular inlet, the rectangular inlet has a 21.5% larger area. Therefore, the number of conical net bags 1 can be increased on the water flow cross-section to increase the water intake area. A filter screen is used to connect adjacent conical net bags 1 at their junctions. Depending on the needs of the debris interception path, the conical net bags 1 can be arranged in a straight line or an arc along the water flow cross-section. The filter screen, as a blind spot for the flushing device 4, needs to be manually cleaned periodically using a high-pressure water gun that can be connected to underwater video equipment.

[0044] The rotary net filter device provided in this embodiment has a spiral propulsion blade inside the conical net 1, which further concentrates debris in the water towards the small port of the conical net 1, preventing debris from remaining stationary on the water surface and obstructing water flow. As the conical net 1 rotates, the flushing device continuously washes the attached debris from the mesh of the portion of the conical net 1 that rotates to the water surface into the water. Aquatic plants and debris are concentrated at the small port of the conical net 1 under the action of water flow and spiral propulsion blades, and then enter the anti-clogging device 2 for fragmentation under the action of the suction pump 3. The fragmented solid-liquid mixture is discharged through the sewage pipe.

[0045] This structural design allows for several advantages. First, the water flow and spiral propulsion blades continuously collect aquatic plants, animals, and debris to the small port of the conical net bag 1. The impurities are then sucked into the anti-clogging device 2 by the suction pump 3 for fragmentation. The fragmented solid-liquid mixture is discharged through the sewage pipe, achieving automated operation of the rotating net bag filter. This results in high filtration efficiency and significantly reduces the labor costs of operation and maintenance. Second, the conical net bag 1 is composed of detachable mesh plates or filter screens. The continuous rinsing of the rotating conical net bag 1 by the rinsing device 4 prevents mesh blockage, ensures seawater flow, and greatly extends the service life of the conical net bag 1. Third, the modular design of the conical net bag 1, anti-clogging device 2, suction pump 3, and rinsing device 4 results in a high degree of integration, simple installation foundation, and short construction and commissioning cycle.

[0046] The specific embodiments of the present invention have been described above. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A rotating mesh filter device, characterized in that, The device includes a conical net bag (1), an anti-clogging device (2), a suction pump (3), and a flushing device (4). The flushing device (4) is used to flush the mesh of the conical net bag (1). The conical net bag (1) has a large port and a small port. The large port of the conical net bag (1) is set in the direction of incoming water. The small port of the conical net bag (1) is connected to the anti-clogging device (2) and the suction pump (3) in sequence. The suction pump (3) sucks out the seawater and debris at the small port of the conical net bag (1). The rotating net bag filter device is also equipped with a driving device, which can drive the conical net bag (1) to rotate.

2. The rotary mesh filter device according to claim 1, characterized in that, The top of both the small and large ports of the conical net (1) are set above the design water level.

3. The rotary mesh filter device according to claim 1, characterized in that, When the flushing device (4) flushes the mesh of the conical net (1), the main line at the highest point of the conical net (1) is completely exposed above the water surface.

4. The rotary mesh filter device according to claim 1, characterized in that, The conical mesh bag (1) consists of several detachable mesh plates or filters connected by a support frame (6).

5. The rotary mesh filter device according to claim 1, characterized in that, The rinsing device (4) includes a rinsing pipe (41) and a plurality of rinsing nozzles (42) arranged on the rinsing pipe (41). The rinsing pipe (41) is located above or on the side of the conical net bag (1).

6. The rotary mesh filter device according to claim 1, characterized in that, The driving device includes a driving gear (5), and the conical net (1) is provided with a driven gear (7) that performs gear transmission with the driving gear (5). The driving gear (5) drives the conical net (1) to rotate under the drive of a driving motor or a hydraulic motor.

7. The rotary mesh filter device according to claim 1, characterized in that, The anti-clogging device (2) is a crusher, used to crush aquatic plants, animals and debris in the water.

8. The rotary mesh filter device according to claim 1, characterized in that, The conical net (1) is equipped with a spiral propulsion blade.

9. The rotary mesh filter device according to claim 8, characterized in that, When the conical net (1) rotates above the water surface, the flushing device (4) flushes the attached debris in the mesh of the conical net (1) into the water. Under the action of the water flow, the aquatic plants and debris gather at the small port of the conical net (1) and enter the anti-clogging device (2) for crushing under the action of the suction pump (3) and / or the spiral propulsion blades. The crushed solid-liquid mixture is discharged through the sewage pipe.

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