CN-122010229-A - Intelligent double-layer folding micro-filter and micro-filtration method

CN122010229ACN 122010229 ACN122010229 ACN 122010229ACN-122010229-A

Abstract

The invention discloses an intelligent double-layer folding micro-filter and a micro-filtering method.A filtering system adopts a unique design of an inner filter screen frame and an outer filter screen frame, the outer filter screen frame can be radially unfolded or folded relative to the inner filter screen frame, and the double-layer filter screens can be used independently and folded under a specific environment to perform double-layer filtering, so that the effective filtering area is remarkably increased. The driving system precisely controls the rotation and folding actions of the filter screen through the motor, the gear set and the gear shifting mechanism. The back flushing system utilizes a high-pressure water pump, a water pipe and a nozzle to clean the filter screen with high efficiency. The intelligent control system integrates liquid level and turbidity sensors, and can automatically adjust the running mode of the filter screen according to the water quality condition. The bottom is provided with a submerged ultraviolet sterilizing lamp, and the surfaces of the filtered water and the filter screen are sterilized and disinfected. The invention solves the problems of easy blockage of the filter screen, inconvenient cleaning, low automation degree and the like caused by sudden increase of pollutants in the feeding stage of the traditional micro-filter, and has the advantages of high filtering efficiency, water saving and energy saving.

Inventors

CHEN YUAN
ZHUANG JUNJIE
DAI LIMIN
LI CHANGWEI
GE ZHENBO
LUO DONG
XU CHAOWEI

Assignees

江苏大学

Dates

Publication Date: 20260512
Application Date: 20260401

Claims (10)

1. The intelligent double-layer folding micro-filter is characterized by comprising a frame and shell assembly, a driving system, a filtering system, a back flushing system, a sewage disposal system, an intelligent control system and a sterilization system, wherein the frame and shell assembly is used for supporting the driving system, the filtering system, the back flushing system, the sewage disposal system, the intelligent control system and the sterilization system; The frame and housing assembly comprises an integral frame (1), a driving motor bracket (25), a frame plate (24), a rear plate (29), a front supporting wheel (21) and a rear supporting seat (7), the driving system comprises a driving motor (19), a gear shifting motor (17), an inner filter screen gear (12), an outer filter screen gear (11) and a gear shifting crank (16) which are used for providing power and controlling the running mode of the filtering system, the filtering system comprises an inner filter screen frame (3) and an outer filter screen frame (4) which can rotate relatively and a filter screen sheet supporting frame (5) paved on the inner filter screen frame (3) and the outer filter screen frame (4), the outer filter screen frame (4) can be radially unfolded or folded relative to the inner filter screen frame (3) under the control of the driving system, the back flushing system comprises a high-pressure water pump (9), a high-pressure water pipe (2) and a high-pressure nozzle (28) which are used for cleaning the filtering system, the sewage draining system comprises a collecting tank (26) and a sewage draining port (20) which is used for collecting and draining the washed sewage, the intelligent control system comprises a control box (22), an automatic sensor (23) and a liquid level sensor (10) and a filter screen sheet supporting frame (5) which is paved on the inner filter screen frame (3) and the inner filter screen frame (4), the outer filter screen frame (3) can be folded, the ultraviolet sterilizing lamp tube (31) is connected with the lamp tube system (30) through the ultraviolet lamp sterilizing system, is used for carrying out preliminary sterilization and disinfection on the filtered water body and the surface of the filter screen.
2. The intelligent double-layer folding micro-filter according to claim 1, wherein the front supporting wheel (21) and the rear supporting seat (7) are used for supporting and guiding the rotation of the inner filter screen frame (3), and the front water baffle (6) and the rear supporting wheel (8) are used for supporting and sealing the outer filter screen frame (4).
3. The intelligent double-layer folding micro-filter according to claim 1, wherein the gear shifting motor (17) drives the driving gear (13) arranged on the guide spline (14) through driving the gear shifting crank (16), the crank sliding block groove (42) and the connecting rod (41), and the driving gear can be selectively meshed with the inner filter screen gear (12) or/and the outer filter screen gear (11) to realize synchronous rotary filtering or back flushing.
4. The intelligent double-layer folding micro-filter according to claim 3, wherein the gear shifting mechanism comprises two gear baffle plates (15), a crank block groove (42) and connecting rods (41), one end of each connecting rod (41) is provided with the corresponding gear baffle plate (15), the other end of each connecting rod (41) is arranged on an extension rod of the corresponding crank block groove (42), the two connecting rods (41) are arranged in parallel, a driving gear (13) is arranged between the two gear baffle plates (15), and a crank block is arranged in the corresponding crank block groove (42) and is arranged at the output end of a gear shifting crank (16).
5. The intelligent double-layer folding micro-filter according to claim 1, wherein the inner filter screen frame (3) and the outer filter screen frame (4) are integrated with the inner filter screen gear (12) and the outer filter screen gear (11) respectively, and the filter screen sheet supporting frame (5) is fixed on the inner filter screen frame (3) and the outer filter screen frame (4) through bolts.
6. The intelligent double-layer folding micro-filter according to claim 5, wherein the filter screen sheet supporting frame (5) is provided with an inner filter screen and an outer filter screen corresponding to the inner filter screen frame (3) and the outer filter screen frame (4), and the inner filter screen and the outer filter screen adopt 100-mesh and 200-mesh filter meshes respectively.
7. The intelligent double-layer folding micro-filter according to claim 1, characterized in that the high-pressure nozzle (28) is arranged outside the inner screen frame (3) and the outer screen frame (4), and the clean water is applied from the high-pressure nozzle to the inner screen and the outer screen through the high-pressure water pump (9) through the high-pressure water pipe (2).
8. The intelligent double-layer folding micro-filter according to claim 1, wherein the turbidity sensor (23) and the liquid level sensor (10) monitor the filtered water quality and the filter screen blockage in real time, when the liquid level exceeds a preset threshold value, the intelligent control system automatically starts a back flushing program, and according to the turbidity change, the intelligent control system automatically changes the filtering mode.
9. The intelligent double-layer folding micro-filter according to claim 1, wherein the ultraviolet lamp tube (30) is arranged in the axial direction of the inner filter screen frame (3) and the outer filter screen frame (4), and disinfects the filtered water body and the filter screen surface at the same time, and is fixed on the ultraviolet lamp tube seat (31).
10. A control method based on the intelligent double-layer folding micro-filter as claimed in claims 1-8, characterized by comprising the following modes: A single inner/outer filtering mode, wherein a driving gear (15) is meshed with an inner filter screen gear (12) or an outer filter screen gear (11), the single inner filter screen frame (3) or the outer filter screen frame (4) is rotated to a position that the notch of one inner filter screen frame (3) or the notch of the outer filter screen frame (4) faces upwards, the notch of the other inner filter screen frame (3) or the notch of the outer filter screen frame (4) faces downwards, and in the single filter screen mode, a nozzle (28) can independently clean the inner filter screen through the notch; In the double-layer filter screen mode, the gaps of the inner filter screen frame (3) or the outer filter screen frame (4) are all positioned at the upward position; The back flushing mode is that the high pressure water pump (9) is started, high pressure water is sprayed out through the spray nozzle (28), the inner filter screen and the outer filter screen on the inner filter screen frame (3) and the outer filter screen frame (4) are cleaned, and the back flushing mode can be carried out simultaneously with the filtering mode.

Description

Intelligent double-layer folding micro-filter and micro-filtration method Technical Field The invention relates to the technical field of water treatment, in particular to precise filtering equipment for removing suspended particles in water, and specifically relates to an intelligent double-layer folding micro-filter and a micro-filtering method. Background The micro-filter is a mechanical filter device and is widely applied to solid-liquid separation links in the fields of aquaculture, sewage treatment, industrial circulating water, food processing and the like. The core principle is that the water to be filtered flows through the inside of the filter screen through a rotary drum-type filter screen, suspended matters larger than meshes are trapped on the inner wall of the filter screen, and filtered clear water flows out through the filter screen. With the progress of filtration, especially fish excrement and feed residues in the feeding stage suddenly increase, the trapped impurities can gradually block the filter screen, so that the filtration efficiency is reduced and the water consumption is increased. The micro-filter in the prior art is mainly used for continuously or intermittently flushing a rotary filter screen through a high-pressure water pump and a spray head of a back flushing assembly so as to remove the blockage. Although the problem of non-stop cleaning is solved to a certain extent, the method has a plurality of limitations that the number of the filtering meshes is fixed, the number of the filtering meshes of the filtering filter screen of the traditional rotary drum filter cannot be changed, and the filter screen is frequently blocked due to the increase of large-particle pollutants in the feeding stage, so that the filtering efficiency is affected. And the energy consumption and the water consumption are that the back flushing needs to continuously consume high-pressure water and electric energy, and if the cleaning frequency is set improperly, the water resource waste can be caused. The degree of automation is limited, most equipment needs to judge the cleaning time and the cleaning time according to experience manually, and the real intelligent and self-adaptive operation cannot be realized. The frequent blockage of the filter screen causes repeated flushing of the back flushing system, so that excessive waste of water resources and electric energy is caused, and the industrial cultivation cost is increased. Disclosure of Invention Aiming at the defects existing in the prior art, the invention provides an intelligent double-layer folding micro-filter and a micro-filtering method, wherein the design of a double-layer folding filter screen is adopted, the controllable conversion and the high-efficiency self-cleaning of the mesh number of the filter screen are realized, and the full-automatic, high-efficiency and energy-saving operation is realized by combining an intelligent sensing control system. The present invention achieves the above technical object by the following means. The intelligent double-layer folding micro-filter comprises a frame and shell assembly, a driving system, a filtering system, a back flushing system, a sewage disposal system, an intelligent control system and a sterilization system, wherein the frame and shell assembly is used for supporting the driving system, the filtering system, the back flushing system, the sewage disposal system, the intelligent control system and the sterilization system; The frame and shell assembly comprises an integral frame, a driving motor bracket, a frame plate, a rear plate, a front supporting wheel and a rear supporting seat; the driving system comprises a driving motor, a gear shifting motor, an inner filter screen gear, an outer filter screen gear and a gear shifting crank, and is used for providing power and controlling the running mode of the filtering system; The filter system comprises an inner filter screen frame, an outer filter screen frame and a filter screen sheet supporting frame, wherein the inner filter screen frame and the outer filter screen frame can rotate relatively, and the filter screen sheet supporting frame is paved on the inner filter screen frame and the outer filter screen frame; the back flushing system comprises a high-pressure water pump, a high-pressure water pipe and a high-pressure nozzle and is used for cleaning the filtering system with high-pressure water; the sewage disposal system comprises a sewage collecting tank and a sewage outlet, and is used for collecting and discharging the flushed sewage; the intelligent control system comprises a control box, a turbidity sensor and a liquid level sensor and is used for receiving sensor signals and automatically controlling the operation of the driving system and the back flushing system; the sterilization system comprises an ultraviolet sterilization lamp tube and a lamp tube connecting seat, and is used for primarily sterilizing and disinfecting th