Centrifugal machine liquid outlet filter screen structure capable of efficiently intercepting microparticles

Abstract

The utility model relates to the field of centrifugal machines, and discloses a centrifugal machine liquid outlet filter screen structure capable of efficiently intercepting microparticles, which comprises a connecting pipe, a cover plate is detachably arranged at the bottom end of the connecting pipe through a limiting assembly, internal threads are arranged on the surface of the cover plate, and a deslagging bolt is in threaded connection with the inner wall of the internal threads of the cover plate. A motor is fixedly connected to the center of the top end of the cover plate, a guide vane is fixedly connected to an output shaft of the motor, a wedge block is fixedly connected to the end, away from the rotating ring, of the connecting column, and the wedge block is elastically connected to the inner wall of the cover plate through a reset spring. According to the utility model, the guide vanes are driven by the motor to rotate, so that liquid forms turbulent flow in the filter cartridge, the contact between microparticles and the filter cartridge is greatly improved, and meanwhile, the guide vanes can also drive the filter cartridge to grab, so that the interception effect is obviously enhanced, the situation that the microparticles flow out along with the liquid is effectively reduced, and the purity of the liquid is improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifuges, and in particular to a centrifuge outlet filter structure that efficiently intercepts microparticles. Background Technology

[0002] A centrifuge is a device that uses centrifugal force to separate substances of different densities. It is widely used in fields such as biomedicine, chemistry, food, and materials science. Its basic principle is to use the centrifugal force generated by high-speed rotation to separate components of different densities in a sample, thereby achieving the purpose of separation, precipitation, and concentration.

[0003] In various industrial production and experimental processes involving centrifuges, the effective interception of microparticles in the effluent is crucial. The centrifuge outlet filter structure, as a key component for achieving this function, directly affects product quality, production efficiency, and equipment operational stability.

[0004] Currently, existing equipment has some shortcomings: in terms of interception effect, some filter structures lack effective flow guiding and stirring devices, the liquid flows relatively smoothly inside the filter, and the contact opportunity between microparticles and the filter is limited, resulting in low interception efficiency and a large number of microparticles still flowing out with the liquid. Therefore, a centrifuge outlet filter structure with high efficiency in intercepting microparticles is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a centrifuge outlet filter structure for high-efficiency interception of microparticles. It aims to improve the problem in the prior art where the liquid flows relatively smoothly inside the filter, the contact opportunity between microparticles and the filter is limited, resulting in low interception efficiency and a large number of microparticles still flowing out with the liquid.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a centrifuge outlet filter structure for high-efficiency interception of microparticles, comprising a connecting pipe, a cover plate being detachably installed at the bottom end of the connecting pipe via a limiting component, an internal thread being formed on the surface of the cover plate, a slag discharge bolt being threadedly connected to the inner wall of the internal thread of the cover plate, a motor being fixedly connected to the center of the top end of the cover plate, a guide vane being fixedly connected to the output shaft of the motor, a filter cartridge being fixedly connected to the outer wall of the bottom end of the guide vane, and a sealing ring being contacted on the surface of the bottom end of the cover plate;

[0007] The limiting component includes a rotating ring with two sets of annular grooves on its surface. A connecting post is slidably connected to the inner wall of the annular groove of the rotating ring. A wedge is fixedly connected to the end of the connecting post away from the rotating ring. The wedge is elastically connected to the inner wall of the cover plate by a reset spring.

[0008] As a further description of the above technical solution:

[0009] The surface of the cover plate has a slot, the inner wall of the slot is in contact with a positioning screw, and the bottom end of the outer wall of the positioning screw is threaded with a cleaning brush.

[0010] As a further description of the above technical solution:

[0011] The bottom end of the connecting pipe has an annular groove, and the outer wall of the sealing ring is in contact with the inner wall of the annular groove.

[0012] As a further description of the above technical solution:

[0013] The inner sidewall of the cover plate is in contact with the bottom end of the outer wall of the connecting pipe, the outer wall of the filter cartridge is in contact with the inner wall of the connecting pipe, and the guide vanes are rotatably connected to the inner surface of the cover plate.

[0014] As a further description of the above technical solution:

[0015] One end of the reset spring is fixedly connected to the inner wall of the cover plate, and the other end of the reset spring is fixedly connected to the outer wall of the wedge block.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the connecting pipe has a groove, and the side wall of the groove has a slot. The outer wall of the wedge block engages with the inner wall of the slot.

[0018] As a further description of the above technical solution:

[0019] The swivel ring is rotatably connected to the outer arc surface of the cover plate, the connecting column is slidably connected to the inner wall of the cover plate, and the wedge is slidably connected to the inner side wall of the cover plate.

[0020] As a further description of the above technical solution:

[0021] The cleaning brush has an internal threaded groove at its top end, the top end of the cleaning brush contacts the bottom end of the outer wall of the cover plate, and the surface of the cleaning brush contacts the inner side wall of the filter cartridge.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the guide vanes rotate under the drive of the motor, causing the liquid to form turbulence inside the filter cartridge, which greatly improves the contact between microparticles and the filter cartridge. At the same time, the guide vanes also drive the filter cartridge to rotate, significantly enhancing the interception effect, effectively reducing the amount of microparticles flowing out with the liquid, and improving the purity of the liquid. Meanwhile, through the cooperation of components such as the rotating ring, connecting column and wedge, the cover plate and filter cartridge can be quickly disassembled and installed. Operators only need to rotate the rotating ring to complete the disassembly, which is simple and quick to operate and greatly shortens the maintenance time.

[0024] 2. In this utility model, the cleaning brush contacts the inner wall of the filter cartridge and cleans the filter holes when the filter cartridge rotates. This can promptly remove microparticles attached to the filter holes, prevent the filter cartridge from clogging, ensure that the filter screen always maintains good filtration performance, eliminate the need for frequent manual cleaning, save maintenance costs, and ensure the continuity and stability of the production process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a centrifuge outlet filter screen structure for high-efficiency interception of microparticles proposed in this utility model.

[0026] Figure 2 This is a partial cross-sectional view of the connecting pipe of a centrifuge outlet filter structure that efficiently intercepts microparticles, as proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the separation state of the connecting pipe and filter cartridge of a centrifuge outlet filter structure for high-efficiency interception of microparticles proposed in this utility model.

[0028] Figure 4 This is a partial cross-sectional view of the cover plate and filter cylinder of a centrifuge outlet filter screen structure for high-efficiency interception of microparticles proposed in this utility model.

[0029] Figure 5 This invention presents a schematic diagram of the cover plate, filter cylinder, and cleaning brush in the separation state of a centrifuge outlet filter structure for high-efficiency interception of microparticles.

[0030] Legend:

[0031] 1. Connecting pipe; 2. Cover plate; 3. Limiting assembly; 31. Rotary ring; 32. Connecting column; 33. Wedge block; 34. Return spring; 4. Filter cartridge; 5. Sealing ring; 6. Motor; 7. Guide vane; 8. Slag discharge bolt; 9. Positioning screw; 10. Cleaning brush. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 3This utility model provides an embodiment of a centrifuge outlet filter structure for high-efficiency interception of microparticles, including a connecting pipe 1. Connecting flanges are provided on both sides of the connecting pipe 1, allowing the entire structure to be connected and fixed to the centrifuge outlet. The other end can be connected to a collection box or similar location. A cover plate 2 is detachably installed at the bottom end of the connecting pipe 1 via a limiting component 3. The inner side wall of the cover plate 2 contacts the bottom end of the outer wall of the connecting pipe 1. Two sets of protrusions are provided on the inner surface of the cover plate 2, corresponding to the grooves at the bottom end of the connecting pipe 1, allowing the cover plate 2 to be positioned and installed with the bottom end of the connecting pipe 1 during installation. An internal thread is provided on the surface of the cover plate 2, and a slag discharge bolt 8 is threaded onto the inner wall of the internal thread of the cover plate 2. The slag discharge bolt 8 can be disassembled using a special tool, thereby discharging the microparticles collected inside the slag discharge bolt 8.

[0034] Reference Figure 3 and Figure 4 A motor 6 is fixedly connected to the center of the top of the cover plate 2. A guide vane 7 is fixedly connected to the output shaft of the motor 6. The motor 6 drives the guide vane 7 to rotate, thereby creating turbulence in the liquid inside the filter cartridge 4. This further improves the contact between microparticles and the filter cartridge 4, enhancing the interception effect. The outer wall of the filter cartridge 4 contacts the inner wall of the connecting pipe 1. The opening at the bottom of the filter cartridge 4 corresponds to the outlet of the connecting pipe 1 and the centrifuge. This ensures that when the liquid enters the interior of the filter cartridge 4, microparticles are intercepted by the filter cartridge 4. The guide vane 7 is rotatably connected to the inner surface of the cover plate 2, and the outer wall at the bottom of the guide vane 7... A filter cartridge 4 is fixedly connected. A protruding rod is provided at the bottom end of the guide vane 7, and the guide vane 7 is connected and fixed to the filter cartridge 4 through the protruding rod. This allows the guide vane 7 to drive the filter cartridge 4 to rotate synchronously when it rotates. At the same time, there is a gap between the guide vane 7 and the inner diameter of the filter cartridge 4, which can accommodate the cleaning brush 10. A sealing ring 5 is in contact with the surface of the bottom end of the cover plate 2. An annular groove is opened at the bottom end of the connecting pipe 1. The outer wall of the sealing ring 5 is in contact with the inner wall of the annular groove. By setting the sealing ring 5, the connection between the cover plate 2 and the connecting pipe 1 can be sealed.

[0035] Reference Figure 3 and Figure 4The limiting component 3 includes a rotating ring 31. Two sets of annular grooves and an anti-slip groove are formed on the surface of the rotating ring 31, allowing it to rotate. Connecting posts 32 are slidably connected to the inner walls of the annular grooves of the rotating ring 31. As the rotating ring 31 rotates, the two sets of connecting posts 32 cause the wedges 33 to move outwards, disengaging them from the slots on the sidewalls of the bottom groove of the connecting pipe 1. This allows for quick disassembly of the cover plate 2 and the filter cartridge 4, facilitating cleaning of the filter cartridge 4. A wedge 33 is fixedly connected to the end of the connecting post 32 away from the rotating ring 31. When the connecting post 32 moves due to the rotation of the rotating ring 31, it synchronously drives the corresponding return spring 34 to move. The wedge 33 is elastically connected to the inner wall of the cover plate 2 via the return spring 34. One end of the spring 34 is fixedly connected to the inner wall of the cover plate 2, and the other end of the spring 34 is fixedly connected to the outer wall of the wedge 33. The function of the spring 34 is to automatically reset the position of the wedge 33 after the bottom slope of the wedge 33 is squeezed and the wedge 33 is moved by the connecting column 32. The bottom end of the connecting tube 1 is provided with a groove, and the side wall of the groove is provided with a slot. The outer wall of the wedge 33 is engaged with the inner wall of the slot. The engagement between the two can fix the cover plate 2, the filter cartridge 4 and the guide vane 7 in the position after the bottom end of the connecting tube 1. The rotating ring 31 is rotatably connected to the outer arc surface of the cover plate 2. The connecting column 32 is slidably connected to the inner wall of the cover plate 2. The inner side of the cover plate 2 is provided with a guide groove that fits the connecting column 32, so as to guide the movement direction of the connecting column 32. The wedge 33 is slidably connected to the inner side wall of the cover plate 2.

[0036] Reference Figure 4 and Figure 5 The cover plate 2 has a slot on its surface. The inner wall of the slot is in contact with a positioning screw 9. The bottom of the outer wall of the positioning screw 9 is threaded with a cleaning brush 10. The top of the cleaning brush 10 has an internal threaded groove. The top of the cleaning brush 10 is in contact with the bottom of the outer wall of the cover plate 2. A special tool is used to penetrate the inside of the cover plate 2 to make a threaded connection with the top of the cleaning brush 10, thereby fixing the position of the cleaning brush 10. When the filter cartridge 4 rotates, its inner side will contact the cleaning brush 10. The cleaning brush 10 can clean the filter holes on the surface of the filter cartridge 4, thereby preventing them from becoming clogged. The surface of the cleaning brush 10 is in contact with the inner side wall of the filter cartridge 4.

[0037] Working principle: When the cover plate 2 and filter cartridge 4 need to be disassembled for cleaning, the operator rotates the rotating ring 31. When the rotating ring 31 rotates, it drives the connecting column 32 to move through the annular groove. The connecting column 32 then drives the wedge block 33 to move outward, so that the wedge block 33 disengages from the groove side wall of the bottom end of the connecting pipe 1. At this time, the cover plate 2 and filter cartridge 4 can be quickly removed from the connecting pipe 1. After cleaning, the cover plate 2 and filter cartridge 4 are reinstalled on the connecting pipe 1. The wedge block 33 can be pressed against the inclined surface of the groove of the connecting pipe 1 through the inner wall of the groove, so that the wedge block 33 moves on the inner wall of the cover plate 2 until the cover plate 2 is completely installed at the bottom end of the connecting pipe 1. The wedge block 33 is automatically reset under the action of the return spring 34, and its outer wall is once again inserted into the groove of the connecting pipe 1, realizing quick installation and fixation.

[0038] The outer wall of the filter cartridge 4 is fitted to the inner wall of the connecting pipe 1, and its bottom opening corresponds to the connecting pipe 1 and the centrifuge outlet. When liquid containing microparticles flows from the centrifuge outlet into the connecting pipe 1 and into the filter cartridge 4, the filter cartridge 4 plays an interception role, blocking the microparticles inside the filter cartridge 4, while the liquid continues to flow downward through the filter cartridge 4, and finally flows to the collection box and other devices through the right side of the connecting pipe 1. At the same time, the bottom end of the guide vane 7 is fixedly connected to the filter cartridge 4 through a protruding rod, so that when the guide vane 7 rotates, it drives the filter cartridge 4 to rotate synchronously, further optimizing the contact between microparticles and the filter cartridge 4 and enhancing the interception effect. In addition, the reserved gap between the guide vane 7 and the inner diameter of the filter cartridge 4 provides a space for the cleaning brush 10. Since the guide vane 7 is located inside the filter cartridge 4, its rotation causes the liquid to form turbulence inside the filter cartridge 4. This turbulent state increases the complexity of the movement of microparticles in the liquid, which greatly improves the contact between microparticles and the filter cartridge 4.

[0039] The cover plate 2 has an internal thread that connects to the slag discharge bolt 8. This allows for easy removal of the slag discharge bolt 8 using a special tool when needed, thus expelling the micro-particles collected inside. Meanwhile, the cleaning brush 10 has an internal threaded groove at its top that connects to the positioning screw 9. A special tool is used to penetrate the cover plate 2 and connect to the top of the cleaning brush 10, thereby fixing the position of the cleaning brush 10. When the filter cartridge 4 rotates under the drive of the guide vane 7, its inner wall contacts the cleaning brush 10. The cleaning brush 10 cleans the filter holes on the surface of the filter cartridge 4, effectively preventing the filter holes from clogging and ensuring that the filter cartridge 4 always maintains good filtration performance.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifuge outlet filter structure for high-efficiency interception of microparticles, comprising a connecting pipe (1), characterized in that: The bottom end of the connecting pipe (1) is detachably installed with a cover plate (2) via a limiting component (3). The surface of the cover plate (2) is provided with an internal thread. The inner wall of the internal thread of the cover plate (2) is threaded with a slag discharge bolt (8). A motor (6) is fixedly connected to the center of the top of the cover plate (2). The output shaft of the motor (6) is fixedly connected with a guide vane (7). The outer wall of the bottom end of the guide vane (7) is fixedly connected with a filter cartridge (4). A sealing ring (5) is in contact with the surface of the bottom end of the cover plate (2). The limiting component (3) includes a rotating ring (31). The surface of the rotating ring (31) is provided with two sets of annular grooves. A connecting post (32) is slidably connected to the inner wall of the annular groove of the rotating ring (31). A wedge (33) is fixedly connected to the end of the connecting post (32) away from the rotating ring (31). The wedge (33) is elastically connected to the inner wall of the cover plate (2) by a reset spring (34).

2. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 1, characterized in that: The surface of the cover plate (2) is provided with a slot, the inner wall of the slot of the cover plate (2) is in contact with a positioning screw (9), and the bottom end of the outer wall of the positioning screw (9) is threaded with a cleaning brush (10).

3. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 1, characterized in that: The bottom end of the connecting pipe (1) is provided with an annular groove, and the outer wall of the sealing ring (5) is in contact with the inner wall of the annular groove.

4. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 1, characterized in that: The inner sidewall of the cover plate (2) is in contact with the bottom end of the outer wall of the connecting pipe (1), the outer wall of the filter cylinder (4) is in contact with the inner wall of the connecting pipe (1), and the guide vane (7) is rotatably connected to the inner surface of the cover plate (2).

5. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 1, characterized in that: One end of the reset spring (34) is fixedly connected to the inner wall of the cover plate (2), and the other end of the reset spring (34) is fixedly connected to the outer wall of the wedge block (33).

6. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 1, characterized in that: The bottom end of the connecting pipe (1) is provided with a groove, and the side wall of the groove is provided with a slot. The outer wall of the wedge (33) is engaged with the inner wall of the slot.

7. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 1, characterized in that: The rotating ring (31) is rotatably connected to the outer arc surface of the cover plate (2), the connecting column (32) is slidably connected to the inner wall of the cover plate (2), and the wedge (33) is slidably connected to the inner side wall of the cover plate (2).

8. The centrifuge outlet filter structure for high-efficiency interception of microparticles according to claim 2, characterized in that: The cleaning brush (10) has an internal threaded groove at its top end. The top end of the cleaning brush (10) is in contact with the bottom end of the outer wall of the cover plate (2). The surface of the cleaning brush (10) is in contact with the inner side wall of the filter cylinder (4).

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