Multifunctional multi-stage filtering device

Abstract

The utility model relates to the technical field of filtering equipment, and discloses a multifunctional multistage filtering device which comprises a plurality of longitudinally stacked filtering cavities, a filtering opening is formed in the bottom of each filtering cavity, a filtering net is installed in each filtering opening, a feeding opening is formed in the side wall of the filtering cavity located on the topmost portion, and a discharging opening is formed in the side wall of the filtering cavity located on the topmost portion. The filtering opening of the filtering cavity located at the bottom is communicated with a discharging hopper, a discharging opening is formed in the bottom of the discharging hopper, and the filtering hole diameters of the filtering nets at the bottoms of the filtering cavities are sequentially reduced from top to bottom. Impurities are sequentially intercepted from coarse to fine through the plurality of longitudinally stacked filtering cavities, so that a multi-stage filtering effect is realized, and resin in each filtering cavity is heated while being stirred by the stirring blades, so that the viscosity of the resin is effectively reduced, the resin always keeps good flowability in the filtering process, and the service life of the resin is prolonged. The filter screen can be effectively prevented from being blocked, and meanwhile, the filtering effect can be greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a multifunctional multi-stage filtration device. Background Technology

[0002] Resin is an essential raw material for paint production. Resin typically has a high relative molecular weight and exists as a solid, medium-solid, or pseudo-solid at room temperature, and sometimes as a liquid organic compound. When storing and handling resin, it first needs to be filled into containers. Because resin contains impurities, these impurities need to be filtered out during the filling process. Currently, filter screens are generally used to filter the resin before filling. However, due to the poor flowability of resin, filter screens are easily clogged, or impurities are not adequately filtered.

[0003] The utility model patent with publication number CN205667752U discloses a resin filling and filtering device. The device overcomes the problem of insufficient resin filtration by having a filter chamber inside the outer shell that is connected to the resin delivery pipe, a filter element inside the filter chamber, the chamber wall being made of a heat-conducting material, and a heating device wrapped around the outer surface of the chamber wall. However, the device only filters the resin once, which still leads to insufficient filtration and urgently needs improvement. Utility Model Content

[0004] The purpose of this invention is to provide a multi-functional, multi-stage filtration device. By using multiple vertically stacked filtration chambers, impurities are intercepted sequentially from coarse to fine, thereby achieving a multi-stage filtration effect. At the same time, the resin in each filtration chamber is heated while being stirred by the stirring blades, which effectively reduces the viscosity of the resin and ensures that the resin maintains good fluidity throughout the filtration process. This not only effectively prevents filter clogging but also greatly improves the filtration effect.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A multifunctional multi-stage filtration device includes multiple vertically stacked filter chambers. Each filter chamber has a filter port at its bottom, and a filter screen is installed inside the filter port. The top filter chamber has a feed inlet on its side wall, and the filter port of the bottom filter chamber is connected to a discharge hopper. The bottom of the discharge hopper has a discharge outlet. The filter pore size of the filter screens at the bottom of each filter chamber decreases sequentially from top to bottom.

[0007] By adopting the above technical solution, the resin to be filtered is fed into the top filter chamber through the inlet. The resin then passes through filter screens of different pore sizes at the bottom of the filter chamber below, allowing impurities to be intercepted sequentially from coarse to fine. This achieves a multi-stage filtration effect, ensuring that the purity of the resin flowing out of the bottom outlet of the discharge hopper is greatly improved. Furthermore, the filter screen pore sizes decrease from top to bottom, allowing each filter chamber to filter impurities of different particle sizes. This significantly reduces the load on a single filtration cycle, effectively lowers the risk of filter screen clogging, and thus improves filtration efficiency.

[0008] A further feature of this invention is that the upper opening of the topmost filter chamber is sealed by a sealing cover plate, which is connected to the discharge hopper via a connecting rod.

[0009] By adopting the above technical solution, the sealing cover can effectively prevent external impurities from entering. At the same time, the connecting rod connects the sealing cover to the discharge hopper, which on the one hand ensures the fixation of the sealing cover, and on the other hand, the limiting effect of the sealing cover and the discharge hopper can tightly fix each filter chamber, preventing the filter chamber from loosening or shifting, ensuring the stability and efficiency of the filtration process, and further improving the overall performance of the device.

[0010] A further feature of this invention is that each of the filter chambers and the upper opening of the discharge hopper is provided with a plurality of positioning grooves, and each positioning groove cooperates with the sealing cover plate above the filter chamber or the positioning block at the bottom of the filter chamber.

[0011] By adopting the above technical solution, the precise cooperation between the positioning groove and the positioning block ensures that the relative positions of each filter chamber are fixed after stacking, avoiding problems such as leakage or loosening caused by misalignment, further enhancing the stability and reliability of the device, making the multi-stage filtration process smoother and more efficient. Moreover, the cooperative design of each positioning groove and positioning block is not only simple in structure and low in development cost, but also greatly simplifies the assembly process and significantly reduces the cost of disassembly and maintenance in the later stage.

[0012] A further feature of this invention is that it includes a stirring rod that passes through each filter chamber and is rotatably connected to each filter chamber. The upper end of the stirring rod is connected to the output shaft of a drive motor fixed on a sealing cover plate, and the lower end of the stirring rod extends into the discharge hopper.

[0013] A further feature of this invention is that the stirring rod is provided with multiple stirring blades on the outer wall of each filter chamber and discharge hopper, and the stirring blades are arranged alternately in sequence, with an electric heating wire embedded in each stirring blade.

[0014] By adopting the above technical solution, the drive motor drives the stirring rod to rotate at high speed. When the stirring rod rotates at high speed, it drives each stirring blade to rotate at high speed synchronously. During the high-speed rotation, the stirring blades come into full contact with the resin entering each filter screen and the discharge hopper, thereby accelerating the resin flow and preventing impurities from depositing. At the same time, the heating wire heats the resin, reducing its viscosity and making it more fluid. This makes it easier for the resin to separate from impurities and quickly pass through the filter screen. This not only further reduces the risk of filter screen clogging, but also further improves the overall filtration efficiency and filtration effect.

[0015] A further feature of this invention is that one end of each stirring blade is fixedly connected to the stirring rod, and the other end abuts against the inner wall of the filter chamber.

[0016] By adopting the above technical solution, the stirring blades can not only effectively stir the resin when rotating, but also scrape and clean the inner wall of the filter chamber to prevent impurities from adhering. This ensures that the inner wall of the filter chamber is always clean while also ensuring that the resin in the filter chamber can be fully filtered.

[0017] A further feature of this invention is that the bottom of the stirring blade located at the bottom of the same filter chamber abuts against the filter screen at the bottom of the filter chamber.

[0018] By adopting the above technical solution, the stirring blades can not only effectively stir the resin when rotating, but also physically clean the filter screen, prevent impurities from clogging the filter screen, ensure the filter screen's filtering effect is stable and long-lasting, and further improve the long-term operating efficiency and reliability of the device.

[0019] A further feature of this invention is that multiple flow holes are evenly distributed on each of the stirring blades.

[0020] By adopting the above technical solution and designing the flow holes, the resin can pass through the flow holes during the stirring process. On the one hand, this improves the dispersion of the resin and breaks up the air bubbles mixed in the resin, effectively reducing the interference of air bubbles on the filtration process. On the other hand, it also reduces the running resistance of the stirring blades and improves the stirring efficiency.

[0021] A further feature of this invention is that the connecting rod is a long bolt, which passes through the sealing cover and the connecting plate on the outer wall of the discharge hopper sequentially from the top of the sealing cover and then connects to the locking nut.

[0022] By adopting the above technical solution, the design of the long bolt not only ensures a tight connection between the components, but also facilitates the disassembly and maintenance of the entire device, thereby improving the overall stability and service life of the device.

[0023] The beneficial effects of this utility model are:

[0024] 1. This utility model introduces a multi-stage filtration method. The resin to be filtered is fed into the topmost filter chamber through the inlet. The resin then passes through filter screens of varying pore sizes at the bottom of the lower filter chambers, allowing impurities to be intercepted sequentially from coarse to fine. This achieves a significantly improved purity of the resin flowing from the bottom outlet of the hopper. Furthermore, the progressively smaller pore size of the filter screens from top to bottom ensures that each filter chamber filters impurities of different particle sizes, greatly reducing the load on a single filtration cycle, effectively lowering the risk of filter clogging, and thus improving filtration efficiency.

[0025] 2. In this utility model, the sealing cover plate can effectively prevent external impurities from entering. At the same time, the connecting rod connects the sealing cover plate to the discharge hopper, which ensures the fixation of the sealing cover plate on the one hand, and on the other hand, the limiting effect of the sealing cover plate and the discharge hopper can tightly fix each filter chamber, preventing the filter chamber from loosening or shifting, ensuring the stability and efficiency of the filtration process, and further improving the overall performance of the device.

[0026] 3. This utility model ensures that the relative positions of each filter chamber are fixed after stacking through the precise cooperation of the positioning groove and the positioning block, avoiding problems such as leakage or loosening caused by misalignment, further enhancing the stability and reliability of the device, making the multi-stage filtration process smoother and more efficient. Moreover, the cooperative design of each positioning groove and positioning block is not only simple in structure and low in development cost, but also greatly simplifies the assembly process and greatly reduces the cost of disassembly and maintenance in the later stage.

[0027] 4. This utility model uses a drive motor to drive the stirring rod to rotate at high speed. When the stirring rod rotates at high speed, it drives each stirring blade to rotate at high speed synchronously. During the high-speed rotation, the stirring blades come into full contact with the resin entering each filter screen and the discharge hopper, thereby accelerating the resin flow and preventing impurities from depositing. At the same time, the heating wire heats the resin, reducing its viscosity and making it more fluid. This makes it easier for the resin to separate from impurities and quickly pass through the filter screen. This not only further reduces the risk of filter screen clogging, but also further improves the overall filtration efficiency and filtration effect.

[0028] 5. In this utility model, the stirring blades can not only effectively stir the resin when rotating, but also scrape and clean the inner wall of the filter chamber and the filter screen, preventing impurities from adhering and the filter screen from clogging. This ensures that the inner wall of the filter chamber is always clean while also ensuring that the resin in the filter chamber can be fully filtered. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a cross-sectional structural diagram of a multi-functional, multi-stage filtration device according to this utility model.

[0031] In the diagram, 1 is the filter chamber; 2 is the filter port; 3 is the filter screen; 4 is the feed inlet; 5 is the discharge hopper; 6 is the discharge outlet; 7 is the sealing cover plate; 8 is the connecting rod; 9 is the positioning groove; 10 is the positioning block; 11 is the stirring rod; 12 is the drive motor; 13 is the stirring blade; 14 is the locking nut; and 15 is the connecting plate. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] like Figure 1 As shown, a multifunctional multi-stage filtration device includes multiple vertically stacked filter chambers 1. Each filter chamber 1 has a filter port 2 at its bottom, and a filter screen 3 is installed inside the filter port 2. The side wall of the top filter chamber 1 has a feed inlet 4, and the filter port 2 of the bottom filter chamber 1 is connected to a discharge hopper 5. The bottom of the discharge hopper 5 has a discharge port 6. The filter pore size of the filter screen 3 at the bottom of each filter chamber 1 decreases sequentially from top to bottom.

[0034] Furthermore, the upper opening of the topmost filter chamber 1 is sealed by a sealing cover plate 7, which is connected to the discharge hopper 5 via a connecting rod 8.

[0035] Furthermore, each of the filter chambers 1 and the discharge hopper 5 is provided with a plurality of positioning grooves 9 on its upper opening, and each positioning groove 9 is respectively engaged with the sealing cover plate 7 above the filter chamber 1 or the positioning block 10 at the bottom of the filter chamber 1.

[0036] Furthermore, it also includes a stirring rod 11 that passes through each filter chamber 1 and is rotatably connected to each filter chamber 1. The upper end of the stirring rod 11 is connected to the output shaft of the drive motor 12 fixed on the sealing cover plate 7, and the lower end of the stirring rod 11 extends into the discharge hopper 5.

[0037] Furthermore, the stirring rod 11 is provided with multiple stirring blades 13 on the outer wall of each filter chamber 1 and discharge hopper 5. The stirring blades 13 are arranged alternately in sequence, and each stirring blade 13 is embedded with an electric heating wire.

[0038] Furthermore, one end of each stirring blade 13 is fixedly connected to the stirring rod 11, and the other end abuts against the inner wall of the filter chamber 1.

[0039] Furthermore, the bottom of the stirring blade 13 located at the bottom of the same filter chamber 1 abuts against the filter screen 3 at the bottom of the filter chamber 1.

[0040] Furthermore, each of the stirring blades 13 has a plurality of flow holes evenly distributed on it.

[0041] Furthermore, the connecting rod 8 is a long bolt, which passes through the sealing cover 7 and the connecting plate 15 on the outer wall of the discharge hopper 5 from the top of the sealing cover 7 and then connects to the locking nut 14.

[0042] The working principle of this utility model is as follows: After the resin to be filtered is put into the top filter chamber 1 through the feed port 4, the resin will pass through the filter screens 3 with different pore sizes at the bottom of the filter chamber 1 below it in stages, so that impurities are intercepted in sequence from coarse to fine, thereby achieving the effect of multi-stage filtration. This ensures that the purity of the resin flowing out of the discharge port 6 at the bottom of the discharge hopper 5 is greatly improved. Moreover, the filter pore size of the filter screen 3 is set to decrease from top to bottom, so that each filter chamber 1 can filter impurities of different particle sizes, thereby greatly reducing the load of a single filtration, effectively reducing the risk of filter screen clogging, and thus improving filtration efficiency.

[0043] Meanwhile, after the resin enters the filter chamber 1, the drive motor 12 drives the stirring rod 11 to rotate at high speed. When the stirring rod 11 rotates at high speed, it drives each stirring blade 13 to rotate at high speed synchronously. During the high-speed rotation, the stirring blades 13 come into full contact with the resin entering each filter screen 3 and the discharge hopper 5, thereby accelerating the resin flow and preventing impurities from depositing. At the same time, the heating wire heats the resin, reducing its viscosity and making it more fluid. This makes it easier for the resin to separate from impurities and quickly pass through the filter screen 3, which not only further reduces the risk of filter screen 3 clogging, but also further improves the overall filtration efficiency and filtration effect.

Claims

1. A multi-functional, multi-stage filtration device, characterized in that: The filter includes multiple vertically stacked filter chambers (1), each of which has a filter port (2) at its bottom. A filter screen (3) is installed inside the filter port (2). The filter chamber (1) at the top has a feed inlet (4) on its side wall. The filter port (2) of the filter chamber (1) at the bottom is connected to a discharge hopper (5). The discharge hopper (5) has a discharge outlet (6) at its bottom. The filter aperture of the filter screen (3) at the bottom of each filter chamber (1) decreases sequentially from top to bottom.

2. The multi-functional multi-stage filtration device according to claim 1, characterized in that: The upper openings of the top filter chamber (1) and the discharge hopper (5) are sealed by a sealing cover plate (7), which is connected to the discharge hopper (5) by a connecting rod (8).

3. The multi-functional multi-stage filtration device according to claim 2, characterized in that: Each of the filter chambers (1) has a plurality of positioning grooves (9) on its upper opening, and each positioning groove (9) is respectively engaged with the sealing cover plate (7) above the filter chamber (1) or the positioning block (10) at the bottom of the filter chamber (1).

4. The multi-functional multi-stage filtration device according to claim 3, characterized in that: It also includes a stirring rod (11) that passes through each filter chamber (1) and is rotatably connected to each filter chamber (1). The upper end of the stirring rod (11) is connected to the output shaft of the drive motor (12) fixed on the sealing cover plate (7), and the lower end of the stirring rod (11) extends into the discharge hopper (5).

5. The multifunctional multi-stage filtration device according to claim 4, characterized in that: The stirring rod (11) is provided with multiple stirring blades (13) on the outer wall of each filter chamber (1) and discharge hopper (5). The stirring blades (13) are arranged alternately in sequence, and each stirring blade (13) is embedded with an electric heating wire.

6. The multifunctional multi-stage filtration device according to claim 5, characterized in that: One end of each stirring blade (13) is fixedly connected to the stirring rod (11), and the other end is in contact with the inner wall of the filter chamber (1).

7. The multifunctional multi-stage filtration device according to claim 6, characterized in that: The bottom of the stirring blade (13) located at the bottom of the same filter chamber (1) is in contact with the filter screen (3) at the bottom of the filter chamber (1).

8. The multifunctional multi-stage filtration device according to claim 7, characterized in that: Multiple flow holes are evenly distributed on each of the stirring blades (13).

9. A multifunctional multi-stage filtration device according to claim 2, characterized in that: The connecting rod (8) is a long bolt. The long bolt passes through the top of the sealing cover (7) and the connecting plate (15) on the outer wall of the discharge hopper (5) in sequence, and then connects to the locking nut (14).

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