A filtering structure and salt separation device

Abstract

The present invention relates to the technical field of filtering devices, and in particular to a filtering structure and salt-stripping separation device, comprising a cylinder, a coaxial rotating shaft rotatably installed in the cylinder, a plurality of evenly distributed frames installed along the circumferential direction on the side of the rotating shaft, the end faces of the frames are in contact with the inner wall of the cylinder, a first filter screen is installed in the frames, a feed port, a discharge port and a waste port are provided on the side of the cylinder, and a positioning device for stabilizing the position of the first filter screen is installed on the cylinder; the positioning device is used to ensure that the first filter screen can stably stay in a preset position during the rotation process, thereby ensuring the stable operation of the device.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, and in particular to a filtering structure and a salt separation device. Background Art

[0002] Brine filtration is to separate solids from liquids. The conventional filtration method is to separate solids from brine through a filter screen. However, during long-term use, more solids are filtered on the filter screen, and long-term use easily leads to low filtration efficiency. A salt lake brine lithium separation device with publication number CN118084114A discloses a device including a top plate, a rotating mechanism for lithium separation is provided at one end of the top of the top plate, pillars are fixedly installed around the bottom of the top plate, a bottom plate is fixedly installed at the bottom end of the pillar, a shaking mechanism for mixing is provided on the top of the bottom plate, a mixing mechanism for extracting lithium is provided on the top of the shaking mechanism, and a processing mechanism for adsorbing and separating lithium ions is provided on the inner side of the pillar; it discloses a method of adsorbing solids by means of a thin film, which is costly and cannot be reused, and has a relatively narrow scope of use. Summary of the invention

[0003] The technical problem to be solved by the present invention is that in the process of separating solid and liquid in brine, the filtering structure is relatively complex and the cost is relatively high.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] First, a filtering structure is provided, including a cylinder, in which a coaxial rotating shaft is rotatably installed, and a plurality of evenly distributed frames are installed on the side of the rotating shaft along the circumferential direction, and the end faces of the frames are in contact with the inner wall of the cylinder, and a first filter screen is installed in the frames. A feed port, a discharge port and a waste port are provided on the side of the cylinder, and a positioning device for stabilizing the position of the first filter screen is installed on the cylinder.

[0006] Furthermore, a baffle is provided between the rotating shaft and the two first filter screens, and the outer end of the baffle is in contact with the inner wall of the cylinder.

[0007] Furthermore, the positioning device comprises a first magnet, the first magnet is installed at a position on the cylinder corresponding to the baffle, and a second magnet matching the first magnet is installed at an outer end of the baffle.

[0008] Furthermore, the inner wall of the cylinder is provided with a plurality of evenly distributed arc-shaped protrusions.

[0009] Furthermore, a mounting seat is provided at a position of the rotating shaft corresponding to the frame, and the mounting seat is plug-fitted with the frame.

[0010] Furthermore, a rubber pad is provided at the contact point between the mounting seat and the frame.

[0011] Furthermore, a second filter screen is installed on the discharge port.

[0012] Furthermore, a funnel is installed at the outer end of the waste outlet.

[0013] Furthermore, the positioning device includes a motor, the output shaft of the motor is connected to the rotating shaft, and a pressure sensor is arranged between the first filter and the rotating shaft.

[0014] A salt separation device comprises the filtering structure as described above, wherein a conveying pipe is provided at the outer end of the feed port, a screen frame is provided at the outer end of the discharge port, a screen is provided inside the screen frame, and a waste barrel is provided at the outer end of the discharge port. The present invention has the following beneficial effects: the present invention utilizes that after solids are slowly accumulated on the first filter screen during the filtering process, the impact force on the first filter screen becomes larger, thereby causing the rotating shaft to rotate, and the rotation of the rotating shaft causes the next first filter screen to rotate to the position of the feed port, thereby ensuring the smooth progress of the filtering work, and at the same time, the coordination of the arc-shaped protrusion and the frame enables the solids on the first filter screen to be shaken off smoothly, thereby ensuring the next rotation use; at the same time, the provision of the rubber pad also makes the vibration effect of the first frame better, and also facilitates the replacement of the frame, maintenance and cleaning; the provision of the positioning device also enables the first filter screen to stay at a preset position, thereby ensuring the stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of this embodiment;

[0017] Figure 2 Schematic diagram of the filtering structure of this embodiment;

[0018] Figure 3 for Figure 2 A magnified image of point A;

[0019] Figure 4 Schematic diagram of the framework structure of this embodiment;

[0020] Figure 5 This is a first use state diagram of this embodiment;

[0021] Figure 6 is a second use state diagram of this embodiment;

[0022] Figure 7 This is a diagram of the third use state of this embodiment; Figure 8 This is a fourth usage state diagram of this embodiment. DETAILED DESCRIPTION

[0023] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0024] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention provides a filtering structure, such as Figure 1 and Figure 2 As shown, it includes a sealed cylinder 10, wherein a coaxially arranged rotating shaft 11 is rotatably installed in the cylinder 10, and a plurality of first filter screens 20 equidistantly distributed are installed on the side of the rotating shaft 11 along the circumferential direction, and a feed port 12, a discharge port 13 and a waste port 14 are opened on the side of the cylinder 10.

[0028] The material that needs solid-liquid separation enters the cylinder 10 through the feed port 12, and then passes through the first filter screen 20, leaving the filtered solid on the first filter screen 20, and the liquid is discharged through the discharge port 13. When there are more solids on the first filter screen 20, the rotating shaft 11 rotates to align another first filter screen 20 with the position of the feed port 12, and then the solids remaining on the first filter screen 20 are discharged through the waste port 14, and so on. This allows the device to filter materials for a long time without cleaning the first filter screen 20.

[0029] A frame 21 is installed at the position of the rotating shaft 11 corresponding to the first filter screen 20, and the end of the frame 21 does not contact the inner wall of the cylinder 10. The first filter screen 20 is installed in the frame 21. When more solids are accumulated on the first filter screen 20, when the solid-liquid mixture impacts the first filter screen 20, the first filter screen 20 will be subjected to a greater impact force, and this impact force can drive the rotating shaft 11 to rotate. In order to ensure that the position where the next first filter screen 20 stops can be aligned with the feed port 12, a baffle 22 is arranged between the two first filter screens 20. The baffles 22 are equidistantly distributed along the circumference of the rotating shaft 11 and are connected to the rotating shaft 11.

[0030] Specifically, in this embodiment, when there are more solids accumulated on the first filter screen 20 facing the feed port 12, the solid-liquid mixture impacts the first filter screen 20 to cause the first filter screen 20 to rotate counterclockwise, which in turn drives the rotating shaft 11 to rotate.

[0031] like Figure 5 As shown, when the first filter screen 20 rotates to the position of the discharge port 13, the first filter screen 20 will tilt because the filtration speed of the liquid on the first filter screen 20 slows down under the action of the residual solids. Therefore, liquid will remain on the first filter screen 20 at this time. The liquid will move toward the inner wall of the cylinder 10 under the action of gravity. At this time, the force of the liquid acts on the outer end of the first filter screen 20. At this time, the lever arm increases, and the first filter screen 20 rotates faster. At the same time, the baffle 22 moves to the position of the feed port 12, and the solid-liquid mixture impacts the baffle 22, which can also drive the rotating shaft 11 to rotate.

[0032] When the first filter screen 20 with residual solids moves to the position of the waste port 14 , the waste is discharged from the waste port 14 under the action of gravity. A funnel 17 is installed at the outer end of the waste port 14 .

[0033] like Figure 6As shown, the shaft 11 continues to rotate, the first filter screen 20 passes over the discharge port 13, and the solid-liquid mixture is discharged from the discharge port 13 until the first filter screen 20 passes over the discharge port 13. At this time, the baffle 22 is directly opposite the feed port 12. Since the baffle 22 cannot filter the liquid, there is more solid-liquid mixture on the baffle 22 at this time. The baffle 22 continues to rotate under the action of the gravity and impact force of the solid-liquid mixture.

[0034] like Figure 7 As shown, when the baffle 22 rotates to the position of the discharge port 13, the solid-liquid mixture on the baffle 22 will be discharged from the discharge port 13. At this time, the next first filter screen 20 will move to the position of the feed port 12, and the shaft 11 will continue to rotate under the action of inertia.

[0035] like Figure 8 As shown, the rotating shaft 11 continues to rotate until the next first filter screen 20 stops at the working position of the previous first filter screen 20, and at this time, one replacement is completed.

[0036] In order to prevent the solid-liquid mixture from being discharged from the discharge port 13 without passing through the first filter screen 20, a second filter screen 15 is installed on the discharge port 13. The solids remaining on the second filter screen 15 will be taken away by the next baffle 2 or frame 21 and discharged from the waste port 14.

[0037] Through the above process, the rotation of the first filter screen 20 facing the feed port 12 is completed, and during the rotation process, the solids remaining on the first filter screen 20 are discharged from the waste port 14, ensuring that the device can be used for a long time and has a longer service life. The device has a simple structure, low cost, and is convenient for modifying the existing structure.

[0038] At the same time, in order to ensure that the first filter screen 20 can stay in a stable position during the rotation process, a first magnet 23 is installed at the position of the baffle 22 on the outer side of the cylinder 10, and a second magnet 24 adsorbed with the first magnet 23 is installed in the outer end of the baffle 22. This ensures that after each rotation, even if the positions of the various components have not returned to their original positions, the first magnet 23 and the second magnet 24 attract each other at the approximate positions, and the baffle 22 can stay in the preset position, thereby allowing the first filter screen 20 to stay in the preset position. At the same time, the magnetic force can also enable the first filter screen 20 to return to its original position when it is subjected to a certain impact force, thereby ensuring the accuracy of the working position.

[0039] In order to make the solid filtered on the first filter screen 20 fall smoothly when passing through the waste port 14 to prevent adhesion, Figure 2 , Figure 3 and Figure 4As shown, a plurality of evenly distributed arc-shaped protrusions 16 are provided on the inner wall of the cylinder 10. When the frame 21 scrapes against the arc-shaped protrusions 16, the frame 21 will vibrate, thereby shaking off the solids attached to the first filter screen 20.

[0040] Furthermore, in order to make the vibration frequency of the frame 21 higher, a mounting seat 25 is installed at the position of the rotating shaft 11 corresponding to the frame 21, and one end of the frame 21 is plugged into the mounting seat 25, and a rubber pad 26 is provided on the contact surface between the mounting seat 25 and the frame 21. At this time, it is ensured that the vibration frequency of the frame 21 is higher when passing through the arc-shaped protrusion 16, so that the effect of shaking off the solid on the first filter screen 20 is better, making the use of the device more effective.

[0041] At the same time, in order to make the position of the first filter screen stay more accurately, the shaft 11 can be driven to rotate by a motor, and a pressure sensor is installed at the connection between the frame 21 and the shaft 11. A motor is installed on the cylinder 10, and the output shaft of the motor is connected to the shaft 11 to drive the shaft 11 to rotate. When the pressure sensor detects a preset pressure, the motor starts to drive the shaft 11 to rotate, thereby completing the rotation of the first filter screen 20.

[0042] A salt separation device, such as Figure 1 As shown, it includes the filtering structure and the conveying pipeline 30 as described above, the conveying pipeline 30 is used to convey the salt-peeling liquid mixture, the outlet of the conveying pipeline 30 is opposite to the feed port 12, and also includes a screen frame 31, the outer end of the discharge port 13 is provided with the screen frame 31, the screen 32 is provided inside the screen frame 31, and the outer end of the waste port 14 is provided with a waste barrel 33, and the waste from the waste port 14 is discharged through the waste barrel 33, which is convenient for subsequent processing. It should be understood that the above description of the specific embodiments of the present invention is only to illustrate the technical route and characteristics of the present invention, and its purpose is to enable technicians in this field to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above-mentioned specific implementation mode. All kinds of changes or modifications made within the scope of the claims of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A filtering structure, characterized in that: It comprises a cylinder (10), a coaxial rotating shaft (11) is rotatably mounted in the cylinder (10), a plurality of evenly distributed frames (21) are mounted on the side of the rotating shaft (11) along the circumferential direction, the end faces of the frames (21) are in contact with the inner wall of the cylinder (10), a first filter screen (20) is mounted in the frames (21), a feed inlet (12), a discharge outlet (13) and a waste outlet (14) are formed on the side of the cylinder (10), and a positioning device for stabilizing the position of the first filter screen (20) is mounted on the cylinder (10); A baffle (22) is provided between the rotating shaft (11) and the two first filter screens (20), and the outer end of the baffle (22) is in contact with the inner wall of the cylinder (10); The positioning device comprises a first magnet (23), the first magnet (23) being installed at a position on the cylinder (10) corresponding to the baffle (22), and a second magnet (24) matching the first magnet (23) being installed at an outer end of the baffle (22); The inner wall of the cylinder (10) is provided with a plurality of evenly distributed arc-shaped protrusions (16); A mounting seat (25) is provided at a position of the rotating shaft (11) corresponding to the frame (21), and the mounting seat (25) is plug-fitted with the frame (21); A rubber pad (26) is provided at the contact point between the mounting seat (25) and the frame (21).

2. A filtering structure according to claim 1, characterized in that: A second filter screen (15) is installed on the discharge port (13).

3. A filtering structure according to claim 1, characterized in that: A funnel (17) is installed at the outer end of the waste opening (14).

4. A filtering structure according to claim 1, characterized in that: The positioning device comprises a motor, the output shaft of the motor is connected to the rotating shaft, and a pressure sensor is provided between the first filter screen (20) and the rotating shaft (11).

5. A salt separation device, characterized in that: It comprises the filtering structure according to any one of claims 1 to 4, wherein a conveying pipe (30) is arranged at the outer end of the feed port (12), a screen frame (31) is arranged at the outer end of the discharge port (13), a screen (32) is arranged inside the screen frame (31), and a waste barrel (33) is arranged at the outer end of the discharge port.

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