A corrosion-resistant seawater filter

Abstract

The application discloses a kind of with corrosion-resistant seawater filter, it is related to wastewater treatment technical field, including first processing frame and second processing frame, the first processing frame is arranged at the top of second processing frame, the first processing frame top is equipped with conveying valve pipe, the output valve pipe is installed at the bottom of the front side of second processing frame, the output port is opened in the corresponding position of output valve pipe at the bottom of the front side of second processing frame, the preliminary filter plate is installed in the upper end of the first processing frame cavity, and the number of preliminary filter plate is two, the top of preliminary filter plate is equidistantly provided with a plurality of conical convex structures, and a plurality of seepage holes are formed in the outside of conical convex structure.The application increases effective filtering area by conical convex structure and seepage hole structure, first retains large-particle impurities, protects rear-end precision filter layer, gradually reduces aperture by arc-shaped screen, bucket-type filter plate and processing filter plate, forms gradient retention, reduces single-stage load, and improves overall pollutant load.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a corrosion-resistant seawater filter. Background Technology

[0002] Currently, seawater filtration is the mainstream technology for seawater desalination pretreatment, marine aquaculture water purification, ship ballast water treatment, and offshore platform circulating water. Conventional filters are prone to clogging due to the high content of suspended solids in seawater (silt, algae, shell fragments, and plankton, etc.).

[0003] The filter holes of traditional flat filter plates are on the same horizontal plane. After impurities are intercepted, they are evenly spread on the filter surface and will cover all the filter holes in a short time. The effective filtration area will decrease rapidly. In addition, the water intake of ordinary flat filter plates is concentrated in the central area, and the central filter holes are blocked first. The utilization rate of the edge filter holes is low, and the overall dirt holding capacity is only about half of the design value.

[0004] Furthermore, the high humidity and salt spray at the seaside make flocculants extremely prone to absorbing moisture and clumping. Traditional gravity feed ports often experience bridging and material interruption. When the dosing system fails, the filter clogging rate doubles. Moreover, the flocs formed by the dosing are loose and large in volume. If they directly enter the fine filtration layer, they will quickly become embedded inside the filter pores and cannot be backwashed out, resulting in irreversible clogging. Traditional filters rely on the pressure difference between the inlet and outlet to judge clogging, or on manual inspection and disassembly. By the time clogging is discovered, it is often already severely clogged, or even pressure buildup and leakage have occurred, making it impossible to provide early warning. Summary of the Invention

[0005] The purpose of this invention is to provide a corrosion-resistant seawater filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant seawater filter, comprising a first processing frame and a second processing frame, wherein the first processing frame is disposed at the top of the second processing frame;

[0007] The first processing frame is equipped with a conveying valve pipe at its top, and the second processing frame is equipped with an output valve pipe at its front bottom. The second processing frame has an output port at the corresponding position of the output valve pipe at its front bottom.

[0008] The first processing frame has two preliminary filter plates installed at the upper end of its inner cavity. Each preliminary filter plate has several conical protrusions at equal intervals at its top end. The conical protrusions have several perforations on their outer surfaces. The middle part of the preliminary filter plate has an installation opening at the corresponding position of the conical protrusions.

[0009] A dosing mechanism is installed at the top of the second processing frame, and a processing mechanism is installed inside the second processing frame.

[0010] Preferably, an arc-shaped screen is installed at the upper end of the inner cavity of the second processing frame. The arc-shaped screen has a concave structure around its perimeter. A connection port is provided at the top of the second processing frame and the bottom of the first processing frame. A connecting valve pipe is installed at the top of the second processing frame. A connecting hose is installed at the top of the connecting valve pipe, and the top of the connecting hose is connected to the bottom of the first processing frame.

[0011] Preferably, storage tanks are installed on both sides of the top of the second processing frame, and a discharge channel is provided between the two sides of the top of the second processing frame and the bottom of the storage tank. An extrusion plate is provided at the upper end of the inner cavity of the storage tank, and compression springs in a compressed state are installed around the top of the extrusion plate. The top of the compression springs is pre-connected to the upper end of the inner cavity of the storage tank.

[0012] Preferably, a working frame head is provided at the upper end of the inner cavity of the second processing frame. A connecting round opening is provided on both sides of the working frame head. A discharge valve pipe is installed at the corresponding position of the connecting round opening on both sides of the working frame head. A solenoid valve is provided at the top of the discharge valve pipe. Rubber mounting pads are installed at the corresponding positions of the discharge channel on both sides of the top of the inner cavity of the second processing frame. A round opening is provided in the middle of the rubber mounting pad, and the top of the solenoid valve is connected to the bottom of the rubber mounting pad.

[0013] Preferably, a working motor is installed at the top of the working frame head, and mounting ports are provided at the middle and both sides of the top of the working frame head. A rotating rod is installed at the upper end of the inner cavity of the working frame head through a bearing. The top of the rotating rod passes through the mounting port and is connected to the output shaft at the bottom of the working motor. A turbofan head is installed at the bottom of the rotating rod. The bottom of the working frame head has a funnel-shaped structure. Intake solenoid valves are installed at corresponding positions on both sides of the top of the working frame head at the mounting ports. The working motor and the intake solenoid valves are electrically connected to an external control center.

[0014] Preferably, the inner cavity of the feeding channel is provided with a movable rod, the bottom end of the movable rod is connected to the top end of the rubber mounting pad, a crossbar is installed on the outside of the movable rod, and a pressure controller is installed on the top end of the movable rod. The pressure controller is electrically connected to an external control center.

[0015] Preferably, a processing filter plate is provided at the lower end of the inner cavity of the second processing frame. The top of the processing filter plate has a convex structure, and the surrounding area of ​​the processing filter plate has a concave structure with an arc-shaped structure. A funnel-shaped filter plate is installed at the upper end of the processing filter plate in the inner cavity of the second processing frame. The funnel-shaped filter plate has a funnel-shaped structure.

[0016] Preferably, an installation slot is provided at the lower end of the inner cavity of the second processing frame. An installation slider is slidably installed at the upper end of the inner cavity of the installation slot. The side of the installation slider away from the installation slot is connected to the processing filter plate. A pressure sensor is installed at the bottom of the installation slider. The pressure sensor is electrically connected to an external control center. A fixing spring is installed around the bottom of the installation slider. The bottom of the fixing spring is connected to the bottom of the inner cavity of the installation slot.

[0017] Preferably, a fixed base plate is installed at the bottom of the second processing frame, and electric telescopic rods are installed on both sides of the top of the fixed base plate. The top of the electric telescopic rods is connected to the outside of the first processing frame, and the electric telescopic rods are electrically connected to an external control center.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention increases the effective filtration area by using a conical protrusion and perforated structure to first intercept large particles of impurities and protect the precision filter layer at the back end. The pore size is gradually reduced through an arc-shaped screen, a bucket-shaped filter plate and a treatment filter plate to form a gradient interception, which reduces the load of a single stage and increases the overall dirt holding capacity.

[0020] 2. The present invention uses a high-speed rotating turbine head to create negative pressure for automatic drug suction, eliminating the need for an additional metering pump. It achieves drug delivery through negative pressure suction and introduces gas through an air intake solenoid valve to create gas-liquid turbulence, improving the drug diffusion efficiency compared to static mixing, shortening the flocculation reaction time, and achieving enhanced aeration mixing. Furthermore, the vibration of the working motor is transmitted to the discharge channel through a movable rod, preventing the drug from absorbing moisture, clumping, and clogging the discharge port, thus achieving vibration-assisted discharge.

[0021] 3. This invention utilizes the structure of the filter plate with a raised center and a recessed perimeter to allow the flocculated sludge to automatically slide towards the edge and accumulate, ensuring the central filtration zone remains unobstructed and improving the effective filtration area utilization rate. It achieves a sludge-collecting structural design, monitors the filter plate load in real time using a pressure sensor, and automatically alarms when the sludge accumulation reaches a threshold to prevent sudden shutdowns and provide automatic blockage warnings. The first processing frame enables coarse filtration, while the second processing frame enables fine filtration and chemical dosing. The invention also features a split structure that allows for individual disassembly and maintenance. The compression spring inside the storage tank continuously applies pressure, keeping the chemical in a compacted state and preventing material shortages due to overloading. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure is provided for embodiments of the present invention;

[0023] Figure 2 This is a horizontal cross-sectional view of the first processing block and the second processing block provided in an embodiment of the present invention.

[0024] Figure 3 This is a structural diagram showing a cross-sectional view of the top of the inner cavity of the first processing frame provided in an embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of the bottom of the inner cavity of the storage tank provided in an embodiment of the present invention;

[0026] Figure 5 This is a cross-sectional view of one side of the inner wall of the second processing frame provided in an embodiment of the present invention.

[0027] In the diagram: 1. Second processing frame; 2. First processing frame; 3. Conveying valve pipe; 4. Output valve pipe; 5. Dosing mechanism; 501. Storage tank; 502. Extrusion top plate; 503. Extrusion spring; 504. Discharge channel; 505. Discharge valve pipe; 506. Arc-shaped screen; 507. Working frame head; 508. Working motor; 509. Inlet solenoid valve; 510. Rubber mounting pad; 511. Turbine fan head; 512. Rotating rod; 513. Movable rod; 514. Crossbar; 515. Pressure controller; 6. Processing mechanism; 601. Processing filter plate; 602. Bucket-shaped filter plate; 603. Mounting slot; 604. Mounting slider; 605. Pressure sensor; 606. Fixing spring; 7. Electric telescopic rod; 8. Preliminary filter plate; 9. Fixing base plate; 10. Connecting valve pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-5 The present invention provides a technical solution: a corrosion-resistant seawater filter, comprising a first processing frame 2 and a second processing frame 1, wherein the first processing frame 2 is disposed at the top of the second processing frame 1;

[0030] The first processing frame 2 is equipped with a conveying valve pipe 3 at its top, and the second processing frame 1 is equipped with an output valve pipe 4 at its front bottom. The second processing frame 1 has an output port at the corresponding position of the output valve pipe 4 at its front bottom.

[0031] The first processing frame 2 has two preliminary filter plates 8 installed at the upper end of its inner cavity. Each of the preliminary filter plates 8 has several conical protrusions at equal intervals at its top end, and several seepage holes are opened on the outside of the conical protrusions. The middle part of the preliminary filter plate 8 has an installation opening at the corresponding position of the conical protrusions.

[0032] A dosing mechanism 5 is installed at the top of the second processing frame 1, and a processing mechanism 6 is installed inside the second processing frame 1.

[0033] An arc-shaped screen 506 is installed at the upper end of the inner cavity of the second processing frame 1. The arc-shaped screen 506 has a concave structure around its perimeter. A connection port is provided at the top of the second processing frame 1 and the bottom of the first processing frame 2. A connecting valve pipe 10 is installed at the top of the second processing frame 1. A connecting hose is installed at the top of the connecting valve pipe 10, and the top of the connecting hose is connected to the bottom of the first processing frame 2.

[0034] Storage tanks 501 are installed on both sides of the top of the second processing frame 1. A discharge channel 504 is provided between the top two sides of the second processing frame 1 and the bottom of the storage tank 501. An extrusion plate 502 is provided at the upper end of the inner cavity of the storage tank 501. Compression springs 503 in a compressed state are installed around the top of the extrusion plate 502. The top of the compression springs 503 is pre-connected to the upper end of the inner cavity of the storage tank 501.

[0035] The upper end of the inner cavity of the second processing frame 1 is provided with a working frame head 507. Both sides of the working frame head 507 are provided with connecting round openings. The corresponding positions of the connecting round openings on both sides of the working frame head 507 are provided with a discharge valve pipe 505. The top of the discharge valve pipe 505 is provided with a solenoid valve. The corresponding positions of the discharge channel 504 on both sides of the top of the inner cavity of the second processing frame 1 are provided with rubber mounting pads 510. The middle of the rubber mounting pad 510 is provided with a round opening, and the top of the solenoid valve is connected to the bottom of the rubber mounting pad 510.

[0036] A working motor 508 is installed at the top of the working frame head 507. The working frame head 507 has mounting holes in the middle and on both sides of the top. A rotating rod 512 is installed on the upper end of the inner cavity of the working frame head 507 through a bearing. The top of the rotating rod 512 passes through the mounting hole and is connected to the output shaft at the bottom of the working motor 508. A turbo fan head 511 is installed at the bottom of the rotating rod 512. The bottom of the working frame head 507 has a funnel-shaped structure. An intake solenoid valve 509 is installed on both sides of the top of the working frame head 507 at the corresponding positions of the mounting holes. The working motor 508 and the intake solenoid valve 509 are electrically connected to an external control center.

[0037] The inner cavity of the feeding channel 504 is provided with a movable rod 513. The bottom end of the movable rod 513 is connected to the top end of the rubber mounting pad 510. A crossbar 514 is installed on the outside of the movable rod 513. A pressure controller 515 is installed on the top end of the movable rod 513. The pressure controller 515 is electrically connected to an external control center.

[0038] The specific implementation method is as follows: When the liquid after preliminary treatment needs to be treated with chemicals during use, the working motor 508 and the solenoid valve in the discharge valve pipe 505 are activated, allowing the material in the inner cavity of the storage tank 501 to be discharged into the discharge valve pipe 505. At the same time, the working motor 508 drives the rotating rod 512 to rotate, and the rotating rod 512 drives the turbine head 511 to rotate in the inner cavity of the working frame head 507, creating a negative pressure in the inner cavity of the working frame head 507. This negative pressure also creates a negative pressure in the inner cavity of the discharge valve pipe 505, drawing the chemicals from the inner cavity of the storage tank 501 into the working frame head 507. Finally, the chemicals are sprayed out through the bottom of the working frame head 507, allowing the sprayed chemicals to come into contact with the liquid for flocculation treatment. To increase the mixing of chemicals and liquid... The system has the capability to close the solenoid valve and activate the intake solenoid valve 509. When the turbine head 511 rotates inside the working frame head 507, gas is supplied to the working frame head 507 through the intake solenoid valve 509. Finally, the gas is compressed and blown into the liquid inside the working frame head 507, increasing the efficiency of mixing the agent with the liquid. When the working motor 508 is working, it will generate vibration, and the generated vibration force is transmitted to the rubber mounting pad 510 through the working frame head 507 and the discharge valve pipe 505. The rubber mounting pad 510 then drives the movable rod 513 and the crossbar 514 to vibrate. By vibrating inside the discharge channel 504, the efficiency of discharging the agent into the storage tank 501 is improved, and blockages are avoided during the discharging process.

[0039] A processing filter plate 601 is provided at the lower end of the inner cavity of the second processing frame 1. The top of the processing filter plate 601 has a convex structure, and the surrounding area of ​​the processing filter plate 601 has a concave structure with an arc-shaped structure. A funnel-shaped filter plate 602 is installed at the upper end of the processing filter plate 601 in the inner cavity of the second processing frame 1. The funnel-shaped filter plate 602 has a funnel-shaped structure, and a control solenoid valve is installed at the bottom end of the funnel-shaped filter plate 602.

[0040] The second processing frame 1 has a mounting slot 603 at the lower end of its inner cavity. Mounting sliders 604 are slidably mounted on the upper end of the inner cavity of the mounting slot 603. The side of the mounting slider 604 away from the mounting slot 603 is connected to the processing filter plate 601. Pressure sensors 605 are mounted on the bottom of each mounting slider 604 and are electrically connected to an external control center. Fixing springs 606 are mounted around the bottom of each mounting slider 604, and their bottom ends are connected to the bottom of the inner cavity of the mounting slot 603. The size of the filter holes on the processing filter plate 601 is smaller than the size of the filter holes on the arc-shaped filter screen 506, and the size of the filter holes on the arc-shaped filter screen 506 is smaller than the size of the filter holes on the preliminary filter plate 8.

[0041] The specific implementation method is as follows: When the pre-treated liquid is discharged into the second treatment frame 1, the connecting valve pipe 10 is activated to discharge the pre-treated liquid from the first treatment frame 2 into the second treatment frame 1. During the discharge process, the liquid comes into contact with the arc-shaped screen 506 for further separation. When the liquid flows to the upper end of the funnel-shaped filter plate 602, the dosing mechanism 5 is activated to add chemicals to the liquid to coagulate the impurities inside. After coagulation is completed, the control solenoid valve is activated to discharge the liquid and the coagulated impurities downwards, and they come into contact with the upper end of the treatment filter plate 601. The treatment filter plate 601 filters the impurities in the liquid, leaving the coagulated impurities on the upper end of the treatment filter plate 601. Through the structure of the protrusion in the middle and the concave sides of the treatment filter plate 601, the impurities are filtered. The impurities gathered around the perimeter of the filter plate allow the perforations in the raised center to remain exposed, preventing blockages during subsequent treatments. This also ensures the timely and stable operation of the filter plate 601 by collecting impurities generated during use. When too many impurities accumulate at the top of the filter plate 601, it moves downwards, causing the mounting slider 604 to move towards the bottom of the mounting slot 603. Simultaneously, it compresses the fixing spring 606. When the bottom of the mounting slider 604 reaches the bottom of the mounting slot 603, the pressure sensor 605 presses against the bottom of the mounting slot 603, triggering the external control center to notify the operator that the accumulated impurities at the top of the filter plate 601 need to be cleaned.

[0042] The bottom of the second processing frame 1 is equipped with a fixed base plate 9, and electric telescopic rods 7 are installed on both sides of the top of the fixed base plate 9. The top of the electric telescopic rods 7 is connected to the outside of the first processing frame 2, and the electric telescopic rods 7 are electrically connected to the external control center.

[0043] The specific implementation method is as follows: When it is necessary to adjust the height of the first processing frame 2 during use, the electric telescopic rod 7 is activated through the external control center. The electric telescopic rod 7 drives the first processing frame 2 to move upward. When the height of the first processing frame 2 increases, the water pressure when the first processing frame 2 discharges liquid is higher, ensuring the flow rate when the liquid is discharged.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant seawater filter, comprising a first treatment frame (2) and a second treatment frame (1), wherein the first treatment frame (2) is disposed at the top of the second treatment frame (1), characterized in that: The first processing frame (2) is equipped with a conveying valve pipe (3) at the top, and the second processing frame (1) is equipped with an output valve pipe (4) at the bottom front side. The bottom front side of the second processing frame (1) is provided with an output port at the corresponding position of the output valve pipe (4). The first processing frame (2) has a preliminary filter plate (8) installed at the upper end of its inner cavity, and there are two preliminary filter plates (8). The top of each preliminary filter plate (8) is provided with several conical protrusions at equal intervals, and several seepage holes are opened on the outside of the conical protrusions. The middle part of the preliminary filter plate (8) is provided with an installation round opening at the corresponding position of the conical protrusions. The top of the second processing frame (1) is equipped with a dosing mechanism (5), and the inner cavity of the second processing frame (1) is equipped with a processing mechanism (6).

2. A corrosion-resistant seawater filter according to claim 1, characterized in that: An arc-shaped screen (506) is installed at the upper end of the inner cavity of the second processing frame (1). The arc-shaped screen (506) has a concave structure around its perimeter. A connection port is provided at the top of the second processing frame (1) and the bottom of the first processing frame (2). A connecting valve pipe (10) is installed at the top of the second processing frame (1). A connecting hose is installed at the top of the connecting valve pipe (10), and the top of the connecting hose is connected to the bottom of the first processing frame (2).

3. A corrosion-resistant seawater filter according to claim 1, characterized in that: Storage tanks (501) are installed on both sides of the top of the second processing frame (1). A discharge channel (504) is provided between the top two sides of the second processing frame (1) and the bottom of the storage tank (501). An extrusion plate (502) is provided at the upper end of the inner cavity of the storage tank (501). Compression springs (503) in a compressed state are installed around the top of the extrusion plate (502). The top of the compression springs (503) is connected to the upper end of the inner cavity of the storage tank (501).

4. A corrosion-resistant seawater filter according to claim 3, characterized in that: The upper end of the inner cavity of the second processing frame (1) is provided with a working frame head (507). Both sides of the working frame head (507) are provided with connecting round openings. Both sides of the working frame head (507) are provided with a discharge valve pipe (505) at the corresponding position of the connecting round opening. The top of the discharge valve pipe (505) is provided with a solenoid valve. Both sides of the top of the inner cavity of the second processing frame (1) are provided with a rubber mounting pad (510) at the corresponding position of the discharge channel (504). The middle of the rubber mounting pad (510) is provided with a round opening, and the top of the solenoid valve is connected to the bottom of the rubber mounting pad (510).

5. A corrosion-resistant seawater filter according to claim 4, characterized in that: A working motor (508) is installed at the top of the working frame head (507). The middle and both sides of the top of the working frame head (507) are provided with mounting ports. A rotating rod (512) is installed on the upper end of the inner cavity of the working frame head (507) through a bearing. The top of the rotating rod (512) passes through the mounting port and is connected to the output shaft at the bottom of the working motor (508). A turbo fan head (511) is installed at the bottom of the rotating rod (512). The bottom of the working frame head (507) has a funnel-shaped structure. An intake solenoid valve (509) is installed on both sides of the top of the working frame head (507) at the corresponding positions of the mounting ports. The working motor (508) and the intake solenoid valve (509) are electrically connected to an external control center.

6. A corrosion-resistant seawater filter according to claim 5, characterized in that: The inner cavity of the discharge channel (504) is provided with a movable rod (513), the bottom end of the movable rod (513) is connected to the top end of the rubber mounting pad (510), a crossbar (514) is installed on the outside of the movable rod (513), and a pressure controller (515) is installed on the top end of the movable rod (513). The pressure controller (515) is electrically connected to an external control center.

7. A corrosion-resistant seawater filter according to claim 1, characterized in that: A processing filter plate (601) is provided at the lower end of the inner cavity of the second processing frame (1). The top of the processing filter plate (601) has a convex structure, and the surrounding area of ​​the processing filter plate (601) has a concave structure, and the concave part has an arc-shaped structure. A funnel-shaped filter plate (602) is installed at the upper end of the processing filter plate (601) in the inner cavity of the second processing frame (1). The funnel-shaped filter plate (602) has a funnel-shaped structure.

8. A corrosion-resistant seawater filter according to claim 7, characterized in that: The second processing frame (1) has an installation slot (603) at the lower end of the inner cavity. An installation slider (604) is slidably installed on the upper end of the inner cavity of the installation slot (603). The side of the installation slider (604) away from the installation slot (603) is connected to the processing filter plate (601). A pressure sensor (605) is installed on the bottom end of the installation slider (604). The pressure sensor (605) is electrically connected to the external control center. A fixing spring (606) is installed around the bottom end of the installation slider (604). The bottom end of the fixing spring (606) is connected to the bottom end of the inner cavity of the installation slot (603).

9. A corrosion-resistant seawater filter according to claim 1, characterized in that: The bottom of the second processing frame (1) is equipped with a fixed base plate (9), and electric telescopic rods (7) are installed on both sides of the top of the fixed base plate (9). The top of the electric telescopic rods (7) is connected to the outside of the first processing frame (2), and the electric telescopic rods (7) are electrically connected to the external control center.

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