Metal filter device with backflush cleaning structure

Abstract

This utility model relates to the field of metal filtration devices, specifically to a metal filtration device with a backwash cleaning structure. It includes a support frame, a filter storage cylinder within the support frame, a metal filter cartridge within the filter storage cylinder, and a backwash auxiliary structure within the metal filter cartridge. A pipeline flow control mechanism is connected to the bottom of the filter storage cylinder. Through the backwash auxiliary structure, a motor-driven brush plate performs thorough cleaning without dead angles, and a magnetic suction rod attracts metal particles from pores, preventing impurities from clogging and extending the filter's lifespan. Through the pipeline flow control mechanism, a single motor drives a bevel gear transmission, causing two sets of petal-shaped sealing plates to move synchronously, achieving flow channel switching. This eliminates the need to purchase two separate valves, saving on manual operation costs and electric valve maintenance expenses.

Description

Technical Field

[0001] This utility model relates to the field of metal filtration devices, and in particular to a metal filtration device with a backwash cleaning structure. Background Technology

[0002] In wastewater treatment, industrial wastewater purification, and machining coolant recovery, metal filtration devices, with their advantages of high pressure resistance, corrosion resistance, and stable filtration accuracy, have become core equipment for intercepting solid impurities (especially metal particles) in wastewater. These devices achieve solid-liquid separation through the porous structure of the metal filter cartridge. The filtered clean liquid can be recycled and reused or discharged in compliance with standards, while the intercepted impurities need to be removed periodically through a backwashing cleaning process to restore the filter cartridge's filtration performance and ensure long-term continuous operation of the device. Therefore, the backwashing cleaning effect and flow channel switching efficiency directly determine the reliability and processing efficiency of the metal filtration device.

[0003] Traditional metal filtration devices suffer from two major drawbacks in practical applications: Firstly, they lack auxiliary cleaning and stripping structures for metal impurities, relying solely on high-pressure backflushing liquid to impact the filter cartridge. Metal particles in wastewater, due to their irregular shapes, easily adhere and become embedded in the pores of the metal filter cartridge, causing blockage. A single backflushing force cannot completely remove them, leading to long-term accumulation and clogging of the filter screen. This not only drastically reduces filtration efficiency but also increases the pressure difference between the inside and outside of the filter cartridge, causing deformation or even breakage. Frequent shutdowns for disassembly and cleaning are necessary, increasing maintenance costs and disrupting production. Secondly, switching between the filtration channel and the backflushing channel often relies on a separately installed manual valve or two independent electric valves. From a cost perspective, purchasing two sets of valves increases initial investment. Furthermore, manual valves require dedicated personnel for operation, resulting in high accumulated labor costs over time. Independent electric valves not only require separate maintenance but also necessitate additional synchronization control modules to prevent asynchronous operation, further increasing maintenance and control costs. Utility Model Content

[0004] The purpose of this invention is to provide a metal filter device with a backwash cleaning structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal filter device with a backwash cleaning structure, comprising a support frame, a filter storage cylinder inside the support frame, a metal filter cartridge inside the filter storage cylinder, a backwash auxiliary structure inside the metal filter cartridge, and a pipeline flow control mechanism connected to the bottom of the filter storage cylinder.

[0006] As a preferred embodiment of this utility model, a backflushing input pipe is connected to one side of the top of the filter storage cylinder, a connecting cylinder is provided at the top of the filter storage cylinder, an input pipe is connected to one side of the connecting cylinder, a conveying pipe is connected to the bottom of the connecting cylinder, and the bottom end of the conveying pipe is connected to the metal filter cylinder.

[0007] In a preferred embodiment of this invention, the backwash auxiliary structure includes a motor, the output end of which is connected to a transmission rod. A movable frame is provided inside the metal filter cartridge. The transmission rod extends through a connecting cylinder to the bottom of the metal filter cartridge and is movably mounted within the movable frame. A pair of connecting rods are vertically mounted on the transmission rod, with the upper and lower connecting rods staggered. A magnetic adsorption rod is connected to the other end of each connecting rod. A second connecting rod is provided on the transmission rod on the opposite side of the first connecting rod. A buffer cylinder is connected to the other end of the second connecting rod. A buffer spring is provided inside the buffer cylinder. A buffer column is connected to one end of the buffer spring and is movably mounted inside the buffer cylinder. A metal brush plate is connected to the other end of the buffer column, and the metal brush plate contacts the inner wall of the metal filter cartridge.

[0008] In a preferred embodiment of this utility model, the pipeline flow control mechanism includes a backflushing output pipe and an output pipe. The backflushing output pipe is connected to the bottom of a metal filter cartridge, and the output pipe is connected to a filter storage tank. A transfer and diversion device is provided at the bottom of the filter storage tank. The transfer and diversion device contains an output connecting pipe one and an output connecting pipe two. The backflushing output pipe is connected to output connecting pipe one via a flange, and the output pipe is connected to output connecting pipe two via a flange. A motor two is located below the transfer and diversion device. Both ends of the motor two are power output ends, and each output end is connected to a rotating shaft one and a rotating shaft two, respectively. The other ends of rotating shaft one and rotating shaft two are respectively provided with bevel gear one and bevel gear two. The output pipe... An internal rotating shaft three is movably installed, and a bevel gear three is provided at the bottom end of the rotating shaft three. The bevel gear one meshes with the bevel gear three. An internal rotating shaft four is movably installed inside the recoil output pipe, and a bevel gear four is provided at the bottom end of the rotating shaft four. The bevel gear two meshes with the bevel gear four. The top ends of the rotating shaft three and rotating shaft four are connected to petal-shaped sealing plates. The top end of the recoil output pipe is provided with a perforated baffle one, and the top end of the output pipe is provided with a perforated baffle two. The perforated baffle one and perforated baffle two have the same shape and are arranged at an angle. The petal-shaped sealing plate is adapted to the shape of the holes on the perforated baffle one and perforated baffle two. When the petal-shaped sealing plate blocks the hole of the perforated baffle one, the hole of the perforated baffle two is in a conductive state, and vice versa.

[0009] As a preferred embodiment of this utility model, the filter storage cylinder is provided with an electrical control panel on its exterior, and the electrical control panel is electrically connected to motor one and motor two.

[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: 1. With the backflush auxiliary structure, the motor-driven brush plate cleans without dead angles, and the magnetic suction rod attracts metal particles between pores to prevent impurities from getting stuck, saving disassembly and cleaning time and extending service life.

[0011] 2. Through the pipeline flow control mechanism, a single motor drives a bevel gear transmission to drive two sets of petal-shaped sealing plates to move synchronously and achieve flow channel switching. There is no need to purchase two sets of independent valves, saving the labor cost of manual operation and the maintenance cost of electric valves. Attached Figure Description

[0012] Figure 1 This is an overall drawing of the present utility model; Figure 2 This is a structural diagram of the internal structure of the filter storage cylinder of this utility model; Figure 3 This is a diagram showing the internal structure of the metal filter cartridge of this utility model; Figure 4 This is a front view of the internal structure of the metal filter cartridge of this utility model; Figure 5 This is an internal view of the transfer and diversion device of this utility model; Figure 6 This is a diagram of the pipeline flow control mechanism of this utility model.

[0013] Reference numerals: 1. Support frame; 2. Filter storage cylinder; 3. Metal filter cartridge; 4. Backwash auxiliary structure; 401. Motor 1; 402. Transmission rod; 403. Movable frame; 404. Connecting rod 1; 405. Magnetic adsorption rod; 406. Connecting rod 2; 407. Buffer cylinder; 408. Buffer spring; 409. Buffer column; 410. Metal brush plate; 5. Pipeline flow control mechanism; 501. Backwash output pipe; 502. Output pipe; 503. Transfer and diversion device; 504. Output connecting pipe 1; 505. Output connecting pipe 2; 506. Motor 2; 507. Rotating shaft 1; 508. Rotating shaft 2; 509. Bevel gear 1; 510. Rotating shaft 3; 511. Bevel gear 3; 512. Rotating shaft 4; 513. Bevel gear 4; 514. Petal-shaped sealing plate; 515. Perforated baffle 1; 517. Perforated baffle 2; 6. Backwash input pipe; 7. Connecting cylinder; 8. Input pipe; 9. Conveying pipe; 10. Electrical control panel. Detailed Implementation

[0014] 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 specific embodiments and accompanying drawings. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0015] This utility model provides a technical solution: a metal filter device with a backwash cleaning structure, including a support frame 1, such as... Figure 1 , Figure 2 As shown, the support frame 1 is equipped with a filter storage cylinder 2, the filter storage cylinder 2 is equipped with a metal filter cylinder 3, the metal filter cylinder 3 is equipped with a backflushing auxiliary structure 4, and the bottom of the filter storage cylinder 2 is connected to a pipeline flow control mechanism 5.

[0016] like Figure 1 As shown, a backflushing input pipe 6 is connected to one side of the top of the filter storage cylinder 2, a connecting cylinder 7 is provided at the top of the filter storage cylinder 2, an input pipe 8 is connected to one side of the connecting cylinder 7, a conveying pipe 9 is connected to the bottom of the connecting cylinder 7, and the bottom end of the conveying pipe 9 is connected to the metal filter cylinder 3.

[0017] like Figure 3 , Figure 4 As shown, the backflushing auxiliary structure 4 includes a motor 401, the output end of which is connected to a transmission rod 402. A movable frame 403 is provided inside the metal filter cartridge 3. The transmission rod 402 extends through the connecting cylinder 7 to the bottom end of the metal filter cartridge 3 and is movably disposed within the movable frame 403. A pair of connecting rods 404 are vertically arranged on the transmission rod 402, with the upper and lower connecting rods 404 being staggered. The other end of the connecting rod 404 is connected to a magnetic adsorption rod 405. A connecting rod 406 is provided on the transmission rod 402 on the other side opposite to the connecting rod 404. The other end of the connecting rod 406 is connected to a buffer cylinder 407. A buffer spring 408 is provided inside the buffer cylinder 407. One end of the buffer spring 408 is connected to a buffer column 409, which is movably disposed inside the buffer cylinder 407. The other end of the buffer column 409 is connected to a metal brush plate 410, which is in contact with the inner wall of the metal filter cartridge 3.

[0018] like Figures 4-6As shown, the pipeline flow control mechanism 5 includes a backflushing output pipe 501 and an output pipe 502. The backflushing output pipe 501 is connected to the bottom of the metal filter cartridge 3, and the output pipe 502 is connected to the filter storage tank 2. The bottom of the filter storage tank 2 is provided with a transfer and diversion device 503. The transfer and diversion device 503 is provided with an output connection pipe 1 504 and an output connection pipe 2 505. The backflushing output pipe 501 is connected to the output connection pipe 1 504 through a flange, and the output pipe 502 is connected to the output connection pipe 2 505 through a flange. A motor 2 506 is provided below the transfer and diversion device 503. Both ends of the motor 2 506 are provided with power output ends, and the two output ends are respectively connected to a rotating shaft 1 507 and a rotating shaft 2 508. The other ends of the rotating shaft 1 507 and the rotating shaft 2 508 are respectively provided with a bevel gear 1 509 and a bevel gear 2 510. A rotating shaft 3 is movably installed in the output pipe 502. 511, the bottom end of the rotating shaft 3 511 is provided with a bevel gear 3 512, bevel gear 1 509 meshes with bevel gear 3 512, the backflush output pipe 501 is movably arranged with a rotating shaft 4 513, the bottom end of the rotating shaft 4 513 is provided with a bevel gear 4 514, bevel gear 2 510 meshes with bevel gear 4 514, the top ends of the rotating shaft 3 511 and the rotating shaft 4 513 are both connected with petal-shaped sealing plates 515, the top end of the backflush output pipe 501 is provided with There is a perforated baffle 516, and the top of the output pipe 502 is provided with a perforated baffle 517. The perforated baffle 516 and the perforated baffle 517 have the same shape and are arranged at an angle. The petal-shaped sealing plate 515 is adapted to the shape of the holes on the perforated baffle 516 and the perforated baffle 517. When the petal-shaped sealing plate 515 blocks the hole of the perforated baffle 516, the hole of the perforated baffle 517 is in a conductive state, and vice versa.

[0019] like Figure 1 As shown, the filter storage tank 2 is equipped with an electrical control panel 10 on the outside, and the electrical control panel 10 is electrically connected to motor 401 and motor 506.

[0020] In practice, the operator starts motor 2 506 via the control panel 10. The forward rotation of motor 2 506 is as follows: one end drives shaft 1 507 to rotate bevel gear 1 509. Bevel gear 1 509 meshes with bevel gear 3 512, which in turn drives the petal-shaped sealing plate 515 in the output pipe 502 to rotate, so that the hole of the perforated baffle 2 517 is fully opened, realizing the conduction of the output flow channel. At the same time, the other end of motor 2 506 drives shaft 2 508 to rotate bevel gear 2 510. Bevel gear 2 510 meshes with bevel gear 4 514, which drives the petal-shaped sealing plate in the backflushing output pipe 501 to rotate, completely blocking the hole of the perforated baffle 1 516, realizing the closure of the backflushing flow channel. During this stage, motor 1 401 remains de-energized, and transmission rod 402 and its connected components are all stationary, finally completing the switching of the working conditions of "filter flow channel opening and backflushing flow channel blocking".

[0021] After the operating mode switch is completed, the wastewater to be treated is injected into the connecting cylinder 7 through the input pipe 8, and then flows directly into the metal filter cylinder 3 through the delivery pipe 9. Under the combined action of gravity and pressure, the wastewater passes through the porous metal filter cylinder 3 wall. Solid impurities in the water, including metal particles, are trapped inside the metal filter cylinder 3, while the filtered clean wastewater enters the filter storage cylinder 2. The clean wastewater then flows through the output pipe 502, passes through the perforated baffle 517, and is finally discharged through the output connecting pipe 505, entering the subsequent recycling or discharge stage.

[0022] When the differential pressure sensor detects that the pressure difference between the metal filter cartridge 3 and the filter storage tank 2 has reached the rated value, the system automatically starts the backwash cleaning process: First, the sewage input valve on the input pipe 8 is closed to stop the sewage injection; then the motor 2 506 reverses, driving the two sets of petal-shaped sealing plates 515 to rotate in the opposite direction. The petal-shaped sealing plate 515 in the output pipe 502 blocks the perforated baffle 2 517, thus closing the output flow channel; the petal-shaped sealing plate in the backwash output pipe 501 opens the perforated baffle 1 516, thus opening the backwash flow channel and effectively preventing the backwash sewage from flowing back into the filter storage tank 2.

[0023] After the backwash channel is opened, the external pump injects the backwash cleaning fluid into the connecting cylinder 7 through the backwash input pipe 6, and then into the metal filter cartridge 3 under high pressure through the delivery pipe 9, directly impacting the impurities trapped on the inner wall of the filter cartridge. At the same time, the electronic control panel 10 controls the motor 401 to start rotating, and the transmission rod 402 drives the metal brush plate 410 to quickly brush the inner wall of the metal filter cartridge 3, thoroughly brushing off the metal impurities attached to the filter screen; the buffer spring 408 in the buffer cylinder 407 can push the buffer column 409 through elastic force to ensure that the metal brush plate 410 always adheres to the filter cartridge wall during the brushing process, without any dead corners in the cleaning.

[0024] Simultaneously, the electronic control panel 10 energizes the electromagnet inside the magnetic adsorption rod 405, generating magnetism. Driven by the motor 401, the magnetic adsorption rod 405 rotates synchronously at high speed with the transmission rod 402, precisely adsorbing residual metal impurities within the gaps of the metal filter cartridge 3's filter screen. When the differential pressure sensor detects that the pressure difference between the metal filter cartridge 3 and the filter storage tank 2 has returned to normal, the electronic control panel 10 de-energizes the electromagnet inside the magnetic adsorption rod 405, and the demagnetized metal impurities are then mixed into the backwash cleaning fluid. Under pressure, the backwash cleaning fluid carrying metal particles enters the backwash output pipe 501 through the bottom of the metal filter cartridge 3, and is finally discharged into the preset impurity collection device, achieving complete separation of metal impurities from wastewater.

[0025] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A metal filtering device with backflushing cleaning structure comprising a support frame (1), characterized in that: The support frame (1) is provided with a filter storage cylinder (2), the filter storage cylinder (2) is provided with a metal filter cylinder (3), the metal filter cylinder (3) is provided with a backwash auxiliary structure (4), and the bottom of the filter storage cylinder (2) is connected to a pipeline flow control mechanism (5).

2. The metal filtering device with backflushing cleaning structure according to claim 1, characterized in that: A backflushing input pipe (6) is connected to one side of the top of the filter storage cylinder (2). A connecting cylinder (7) is provided at the top of the filter storage cylinder (2). An input pipe (8) is connected to one side of the connecting cylinder (7). A conveying pipe (9) is connected to the bottom of the connecting cylinder (7). The bottom end of the conveying pipe (9) is connected to the metal filter cylinder (3).

3. The metal filtering device with backflushing cleaning structure according to claim 2, characterized in that: The backflush auxiliary structure (4) includes a motor (401), the output end of which is connected to a transmission rod (402). The metal filter cartridge (3) is provided with a movable frame (403). The transmission rod (402) extends through the connecting cylinder (7) to the bottom end of the metal filter cartridge (3) and is movably disposed in the movable frame (403). A pair of connecting rods (404) are vertically arranged on the transmission rod (402). The upper and lower connecting rods (404) are staggered. The other end of the connecting rod (404) is connected to a magnetic adsorption rod (405). A connecting rod 2 (406) is provided on the other side of the transmission rod (402) opposite to the connecting rod 1 (404). The other end of the connecting rod 2 (406) is connected to a buffer cylinder (407). A buffer spring (408) is provided inside the buffer cylinder (407). One end of the buffer spring (408) is connected to a buffer column (409). The buffer column (409) is movably disposed inside the buffer cylinder (407). The other end of the buffer column (409) is connected to a metal brush plate (410). The metal brush plate (410) is in contact with the inner wall of the metal filter cylinder (3).

4. The metal filtering device with backflushing cleaning structure according to claim 3, characterized in that: The pipeline flow control mechanism (5) includes a backflushing output pipe (501) and an output pipe (502). The backflushing output pipe (501) is connected to the bottom of the metal filter cartridge (3), and the output pipe (502) is connected to the filter storage tank (2). The bottom of the filter storage tank (2) is provided with a transfer and diversion device (503). The transfer and diversion device (503) is provided with an output connection pipe one (504) and an output connection pipe two (505). The backflushing output pipe (501) and the output connection pipe one (504) are connected by a method The output pipe (502) and the output connecting pipe two (505) are connected by a flange. A motor two (506) is located below the transfer and diversion device (503). Both ends of the motor two (506) are power output ends, and the two output ends are respectively connected to a rotating shaft one (507) and a rotating shaft two (508). The other ends of the rotating shaft one (507) and the rotating shaft two (508) are respectively provided with a bevel gear one (509) and a bevel gear two (510). A rotating shaft three (505) is movably installed inside the output pipe (502). 511), the bottom end of the rotating shaft three (511) is provided with bevel gear three (512), the bevel gear one (509) meshes with bevel gear three (512), the recoil output pipe (501) is movably provided with rotating shaft four (513), the bottom end of rotating shaft four (513) is provided with bevel gear four (514), the bevel gear two (510) meshes with bevel gear four (514), the top ends of rotating shaft three (511) and rotating shaft four (513) are both connected with petal-shaped sealing plates (515), the recoil output pipe ( The top of the output tube (501) is provided with a perforated baffle (516), and the top of the output tube (502) is provided with a perforated baffle (517). The perforated baffle (516) and the perforated baffle (517) have the same shape and are arranged at an angle. The petal-shaped sealing plate (515) is adapted to the shape of the holes on the perforated baffle (516) and the perforated baffle (517). When the petal-shaped sealing plate (515) blocks the hole of the perforated baffle (516), the hole of the perforated baffle (517) is in a conductive state, and vice versa.

5. A metal filter device with a backwash cleaning structure according to claim 4, characterized in that: The filter storage cylinder (2) is equipped with an electrical control panel (10) on the outside, and the electrical control panel (10) is electrically connected to motor one (401) and motor two (506).

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