A tower filter press

Abstract

The application discloses a tower type filter press and belongs to the technical field of filter presses, which comprises a base and a support, a lifting plate is arranged between the base and the support, a plurality of plate layer groups are arranged between the lifting plate and the base, the spacing between the plate layer groups can be changed through lifting of the lifting plate; the base is connected with a driving mechanism through a fixing seat, the driving mechanism comprises a motor lead screw, an elliptical plate and a connecting rod assembly, the motor lead screw is used for driving the elliptical plate to swing, one end of the elliptical plate is rotationally connected with the fixing seat, the other end of the elliptical plate is rotationally connected with one end of the connecting rod assembly, and the other end of the connecting rod assembly is rotationally connected with the bottom end of the lifting plate. Since the elliptical plate has a unique structure of a long radius and a short radius, when the elliptical plate is rotated, the connecting rod mechanism can realize quick response in the alternating process of the short radius and the long radius, the lifting plate is driven to quickly rise and fall, efficient and quick movement is realized, the single-machine operation time is saved, and the overall process efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of filter presses, and more particularly to a tower filter press. Background Technology

[0002] Filter presses, as a commonly used equipment for solid-liquid separation, are now widely used in various fields such as coal, metallurgy, mining, fine chemicals, and photovoltaic cells. Their wide range of applications and low barriers to entry have enabled them to occupy a significant share of the solid-liquid separation industry. Vertical filter presses are mostly driven by hydraulic cylinders, and come in various forms such as top-mounted, side-mounted, and bottom-mounted hydraulic cylinders, but most use hydraulic cylinders as the main power source.

[0003] Due to the inherent characteristics of hydraulic cylinders, the high internal pressure and risk factor, coupled with the difficulty in cleaning and installing hydraulic pipelines, lead to frequent failures of hydraulic components and a high equipment failure rate. During application, problems such as hydraulic oil leakage contaminating materials and hydraulic pipeline rupture jeopardizing safety may occur. Malfunctions in hydraulic mechanisms affect equipment operation and reduce efficiency. Furthermore, the precision of hydraulic devices makes maintenance difficult and results in high maintenance costs in the long run. Summary of the Invention

[0004] This application addresses the shortcomings of existing technologies by providing a tower filter press with a purely mechanical travel mechanism to replace the original hydraulic system. The mechanical motion unit not only boasts high reliability, zero pollution, and easy maintenance, but also offers low cost and low maintenance expenses in later application. Furthermore, the motion unit is detachable, facilitating long-distance transportation and simplifying installation.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows:

[0006] A tower filter press includes a base and a support frame. A lifting plate is provided between the base and the support frame, and multiple plate layers are provided between the lifting plate and the base. The lifting plate can change the spacing between the plate layers by raising and lowering. The base is connected to a driving mechanism via a fixed seat. The driving mechanism includes an electric lead screw, an elliptical plate, and a connecting rod assembly. The electric lead screw is used to drive the elliptical plate to swing. One end of the elliptical plate is rotatably connected to the fixed seat, and the other end of the elliptical plate is rotatably connected to one end of the connecting rod assembly. The other end of the connecting rod assembly is rotatably connected to the bottom end of the lifting plate.

[0007] By adopting the above technical solution, when the tower filter press is operating, the electric screw pushes the elliptical plate to rotate inward. The elliptical plate drives the connecting rod assembly at the top to move upward, thereby driving the lifting plate to move upward. The fixed seat serves as a fixed point, and one end of the elliptical plate rotates at the fixed point to support the entire mechanism. This mechanized drive mechanism enables the lifting plate to move quickly and efficiently, which is more efficient and faster than the previous hydraulic cylinder drive. This mechanism utilizes the crankshaft connecting rod principle, which is different from the slow and uniform movement of a hydraulic cylinder. This mechanism can move more quickly, improves stability, and reduces later maintenance costs. Due to the unique structure of the ellipse's major and minor radii, the linkage mechanism can react quickly during the alternation of the major and minor radii when the elliptical plate is rotated, thereby driving the lifting plate to rise and fall rapidly, achieving efficient and rapid movement, saving single-machine operating time, and improving overall process efficiency.

[0008] Furthermore, there are four drive mechanisms, arranged in pairs on both sides of the base. Each drive mechanism includes two elliptical plates, which are located on both sides of the connecting rod assembly and the electric lead screw, respectively.

[0009] Furthermore, the output end of the electric lead screw is provided with a sliding pin, and a slide rail is provided in the middle of the elliptical plate, with the sliding pin slidably connected to the slide rail.

[0010] Furthermore, the support is provided with a driven mechanism, which includes a first rotating rod, a second rotating rod, and an angular rotation motor. One end of the first rotating rod is rotatably connected to the bottom end of the support, and the other end of the first rotating rod is rotatably connected to one end of the second rotating rod. When the lifting plate is in the falling state, the end of the second rotating rod connected to the first rotating rod abuts against the upper surface of the lifting plate.

[0011] Furthermore, angular rotation motors are connected to the rotation shafts at both ends of the first rotating rod, and the two angular rotation motors are used to drive the first rotating rod and the second rotating rod to rotate.

[0012] Furthermore, the bottom end of the bracket is movably connected to a built-in lead screw, and the second rotating rod has a receiving groove. When the lifting plate is in the falling state, the built-in lead screw and the receiving groove are slidably connected along the length direction of the second rotating rod.

[0013] Furthermore, a guide plate is provided between the base and the support, the guide plate passing through the lifting plate and perpendicular to the lifting plate.

[0014] Furthermore, a guide wheel is rotatably connected inside the lifting plate, and the guide plate is connected to the lifting plate through the guide wheel, with the guide wheel and the guide plate in a rolling connection.

[0015] Furthermore, the upper end of the guide plate is provided with an upper fixing groove and a lower fixing groove, and the upper end of the lifting plate is provided with a trapezoidal locking pin. When the lifting plate is in the raised state, the trapezoidal locking pin is connected to the upper fixing groove, and when the lifting plate is in the lowered state, the trapezoidal locking pin is connected to the lower fixing groove.

[0016] Furthermore, the connecting rod assembly includes an adjusting nut, a positive lead screw, and a negative lead screw. The positive lead screw is connected to the negative lead screw via the adjusting nut, and the adjusting nut is threadedly connected to both the positive lead screw and the negative lead screw.

[0017] In summary, compared with the prior art, the beneficial effects of the above technical solution are:

[0018] The tower filter press described in this application, during operation, uses an electric lead screw to drive an elliptical plate to rotate inward. The elliptical plate drives the connecting rod assembly at the top to move upward, thereby moving the lifting plate upward. A fixed base serves as a fixed point, with one end of the elliptical plate rotating at this point to support the entire mechanism. This mechanized drive mechanism enables rapid and efficient movement of the lifting plate, offering higher efficiency and speed compared to previous hydraulic cylinder-driven mechanisms. This mechanism utilizes the crankshaft connecting rod principle, unlike the slow and uniform movement of hydraulic cylinders. This mechanism allows for faster action, improved stability, and reduced maintenance costs. Due to the unique structure of the ellipse's major and minor radii, the alternation between the major and minor radii during the rotation of the elliptical plate allows for a rapid response of the connecting rod mechanism, resulting in rapid upward and downward movement of the lifting plate. This achieves efficient and rapid movement, saving single-machine operating time and improving overall process efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0020] Figure 2 This is a structural schematic diagram of the lifting plate in the falling state according to an embodiment of this application;

[0021] Figure 3 This is a side view of the driving mechanism and the driven mechanism in the embodiments of this application;

[0022] Figure 4 This is a schematic diagram of the operation of the driven mechanism in the embodiments of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the guide plate and the lifting plate in the embodiments of this application;

[0024] Figure 6 for Figure 5 A magnified view of part A in the image.

[0025] Explanation of reference numerals in the attached drawings: 1. Base; 2. Bracket; 3. Lifting plate; 4. Plate assembly; 5. Fixed seat; 6. Drive mechanism; 61. Electric lead screw; 62. Elliptical plate; 63. Linkage assembly; 631. Adjusting nut; 632. Positive lead screw; 633. Negative lead screw; 64. Sliding pin; 65. Slide rail; 7. Driven mechanism; 71. First rotating rod; 72. Second rotating rod; 73. Angular rotation motor; 74. Built-in lead screw; 75. Receiving groove; 8. Guide plate; 9. Guide wheel; 10. Upper fixed groove; 11. Lower fixed groove; 12. Trapezoidal locking pin; 13. Upper connecting block; 14. Lower connecting block; 15. Guide roller; 16. Built-in bearing; 17. Locking lead screw. Detailed Implementation

[0026] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0027] This application discloses a tower filter press.

[0028] Reference Figures 1-6 A tower filter press includes a base 1 and a support 2. A lifting plate 3 is provided between the base 1 and the support 2. Multiple plate groups 4 are provided between the lifting plate 3 and the base 1. The lifting plate 3 can change the spacing between the plate groups 4 by lifting and lowering. A drive mechanism 6 for driving the lifting plate 3 to lift and lower is provided on the base 1.

[0029] The drive mechanism 6 includes an electric lead screw 61, an elliptical plate 62, and a connecting rod assembly 63. A fixed seat 5 is fixed on the base 1, and the fixed seat 5 is connected to the elliptical plate 62 through a sliding bearing. The fixed seat 5 is used to support the entire connecting rod device. The electric lead screw 61 is used to drive the elliptical plate 62 to swing. One end of the elliptical plate 62 is rotatably connected to the fixed seat 5, and the other end of the elliptical plate 62 is rotatably connected to one end of the connecting rod assembly 63. The other end of the connecting rod assembly 63 is rotatably connected to the bottom end of the lifting plate 3.

[0030] When the tower filter press needs to be operated to the rising position, the electric lead screw 61 pushes the elliptical plate 62 to rotate inward. The elliptical plate 62 drives the top connecting rod assembly 63 to move upward, thereby moving the lifting plate 3 upward. The fixed base 5 is a fixed point, and one end of the elliptical plate 62 rotates at the fixed point to support the entire mechanism. This mechanized drive mechanism 6 can achieve rapid and efficient movement of the lifting plate 3, which is more efficient and faster than the previous hydraulic cylinder drive.

[0031] This mechanism utilizes the crankshaft connecting rod principle, which, compared to the slow and uniform movement of a hydraulic cylinder, allows for faster action, improved stability, and reduced maintenance costs. Due to the unique structure of the ellipse's major and minor radii, the alternation between the minor and major radii during the rotation of the elliptical plate 62 enables a rapid response of the connecting rod mechanism, thereby driving the lifting plate 3 to rise and fall quickly. This achieves efficient and rapid movement, saving single-machine operating time and improving overall process efficiency.

[0032] There are four drive mechanisms 6, which are arranged in pairs on both sides of the base 1. When the tower filter press is in operation, the four drive mechanisms 6 drive synchronously and cooperate to lift the lifting plate 3, which improves the driving power of the lifting plate 3 and makes the tower filter press more powerful.

[0033] Each drive mechanism 6 includes two elliptical plates 62, which are located on opposite sides of the connecting rod assembly 63 and the electric lead screw 61, respectively. The output end of the electric lead screw 61 is provided with a sliding pin 64. A slide rail 65 is formed along the length of the elliptical plate 62 at its center, located on opposite sides of the two elliptical plates 62. Each sliding pin 64 is slidably connected to both slide rails 65.

[0034] When the tower filter press needs to be operated to the lowering state, the electric screw 61 extends its output shaft outward. The sliding pin 64 at the output end of the electric screw 61 moves outward along the slide rail 65 inside the elliptical plate 62, pushing the elliptical plate 62 to rotate outward. The elliptical plate 62 drives the top connecting rod assembly 63 to move downward, thereby driving the top lifting plate 3 to move downward. The connecting rod assembly 63 includes an adjusting nut 631, a positive screw 632, and a negative screw 633. The positive screw 632 is connected to the negative screw 633 through the adjusting nut 631, and the adjusting nut 631 is threadedly connected to both the positive screw 632 and the negative screw 633. An upper connecting block 13 is fixed at the bottom end of the lifting plate 3. The positive screw 632 is connected inside the upper connecting block 13 through a pin and a sliding joint bearing. One end of the elliptical plate 62 is connected to a lower connecting block 14. The negative screw 633 is connected inside the lower connecting block 14 through a pin and a sliding joint bearing.

[0035] The adjusting nut 631 can be rotated to connect with the positive lead screw 632 and the negative lead screw 633 respectively, thereby changing the relative position relationship between the positive lead screw 632 and the negative lead screw 633. The adjusting nut 631 is used to adjust the tightness of the connecting rod assembly 63. At the same time, the adjusting nut 631, the positive lead screw 632 and the negative lead screw 633 can be separated from each other, which also facilitates the disassembly, installation and transportation of the connecting rod assembly 63.

[0036] A guide plate 8 is provided between the base 1 and the support 2. The guide plate 8 passes through the lifting plate 3 and is perpendicular to the lifting plate 3. When the lifting plate 3 is raised or lowered, the guide plate 8 is used to guide the lifting plate 3, cancel out the lateral force on the lifting plate 3, and realize the smooth and rapid raising and lowering action of the lifting plate 3.

[0037] A guide wheel 9 is rotatably connected inside the lifting plate 3. The guide plate 8 is connected to the lifting plate 3 via the guide wheel 9, and the guide wheel 9 and the guide plate 8 are in a rolling connection. In this embodiment, eight guide wheels 9 are installed between the guide plate 8 and the lifting plate 3. A guide roller 15 is fixed inside the lifting plate 3 to support the entire guide wheel 9. The guide wheel 9 is connected to the guide roller 15 via an internal bearing 16.

[0038] When the lifting plate 3 is raised or lowered, the guide wheel 9 rolls inside the lifting plate 3 and moves along the outer wall of the guide plate 8 to ensure that the top pressing plate moves in a straight line without deviating. On the basis of realizing the guiding function of the guide plate 8 on the movement trajectory of the lifting plate 3, the relative movement process between the guide plate 8 and the lifting plate 3 is made smoother and less labor-intensive.

[0039] The upper end of the guide plate 8 is provided with an upper fixing groove 10 and a lower fixing groove 11. The upper end of the lifting plate 3 is provided with a trapezoidal locking pin 12. When the lifting plate 3 is in the raised state, the trapezoidal locking pin 12 is connected to the upper fixing groove 10. When the lifting plate 3 is in the lowered state, the trapezoidal locking pin 12 is connected to the lower fixing groove 11. The lifting plate 3 is provided with a locking screw 17 for driving the movement of the trapezoidal locking pin 12.

[0040] When the lifting plate 3 needs to be kept in the raised state, the locking screw 17 moves out and drives the trapezoidal locking pin 12 to lock in the upper fixed groove 10; when the lifting plate 3 needs to be kept in the lowered state, the locking screw 17 moves out and drives the trapezoidal locking pin 12 to lock in the lower fixed groove 11; when the lifting plate 3 needs to perform the lifting action, the locking screw 17 retracts and drives the trapezoidal locking pin 12 to disengage from the upper fixed groove 10 and the lower fixed groove 11.

[0041] The support 2 is provided with a driven mechanism 7, which includes a first rotating rod 71, a second rotating rod 72 and an angular rotation motor 73. One end of the first rotating rod 71 is rotatably connected to the bottom end of the support 2, and the other end of the first rotating rod 71 is rotatably connected to one end of the second rotating rod 72. When the lifting plate 3 is in the falling state, the end of the second rotating rod 72 connected to the first rotating rod 71 abuts against the upper surface of the lifting plate 3.

[0042] Angle motors 73 are connected to the rotation shafts at both ends of the first rotating rod 71. The two angle motors 73 are used to drive the first rotating rod 71 and the second rotating rod 72 to rotate. Sliding bearings are installed at the rotation shaft of the first rotating rod 71 and inside the bracket 2 to ensure that the first rotating rod 71 and the second rotating rod 72 can rotate and be positioned accurately under the drive of the angle motors 73.

[0043] When the lifting plate 3 is in the raised state, both the first rotating rod 71 and the second rotating rod 72 are in a horizontal state and flush with the bottom surface of the bracket 2. When the lifting plate 3 is in the lowered state, the first rotating rod 71 rotates away from the bracket 2 under the drive of the angular rotation motor 73, and the second rotating rod 72 rotates away from the first rotating rod 71 under the drive of the angular rotation motor 73 until the second rotating rod 72 reaches the vertical position. At this time, the lower end of the second rotating rod 72 abuts against the upper surface of the lifting plate 3.

[0044] The second rotating rod 72 works in conjunction with the first rotating rod 71 to provide pre-tightening support, ensuring that the tower filter press will not malfunction due to the failure of the drive device during operation, thus increasing the safety of the tower filter press's pre-tightening.

[0045] The bottom of the support frame 2 is movably connected to a built-in lead screw 74, and a receiving groove 75 is provided inside the second rotating rod 72. When the lifting plate 3 is in the lowering state, the built-in lead screw 74 and the receiving groove 75 are slidably connected along the length of the second rotating rod 72. When the second rotating rod 72 limits the position of the lifting plate 3, the built-in lead screw 74 slides into the receiving groove 75. The built-in lead screw 74 limits the position of the second rotating rod 72 through the receiving groove 75, so that the second rotating rod 72 can be stably placed in the required position to provide pre-tight support for the tower filter press.

[0046] The implementation principle of a tower filter press according to an embodiment of this application is as follows: When the tower filter press is operating, the electric screw 61 pushes the elliptical plate 62 to rotate inward. The elliptical plate 62 drives the connecting rod assembly 63 at the top to move upward, thereby driving the lifting plate 3 to move upward. The fixed seat 5 is a fixed point, and one end of the elliptical plate 62 rotates at the fixed point to support the entire mechanism. This mechanized drive mechanism 6 can realize the rapid and efficient movement of the lifting plate 3, which is more efficient and faster than the previous hydraulic cylinder drive. This mechanism uses the crankshaft connecting rod principle, which is different from the slow and uniform movement of the hydraulic cylinder. This mechanism can move more quickly, improve stability, and reduce later maintenance costs. Due to the unique structure of the long and short radii of the ellipse, when the elliptical plate 62 is driven to rotate, the short and long radii alternate, which can realize the rapid response of the connecting rod mechanism, thereby driving the lifting plate 3 to rise and fall rapidly, realizing efficient and rapid movement, saving single machine operation time, and improving overall process efficiency.

[0047] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tower filter press, characterized in that, include: A base (1) and a support (2) are provided. A lifting plate (3) is provided between the base (1) and the support (2). Multiple plate groups (4) are provided between the lifting plate (3) and the base (1). The lifting plate (3) can change the spacing between the plate groups (4) by lifting and lowering. The base (1) is connected to a drive mechanism (6) through a fixed seat (5). The drive mechanism (6) includes an electric screw (61), an elliptical plate (62) and a connecting rod assembly (63). The electric screw (61) is used to drive the elliptical plate (62) to swing. One end of the elliptical plate (62) is rotatably connected to the fixed seat (5). The other end of the elliptical plate (62) is rotatably connected to one end of the connecting rod assembly (63). The other end of the connecting rod assembly (63) is rotatably connected to the bottom end of the lifting plate (3). The drive mechanism (6) is provided in four groups, and is provided in pairs on both sides of the base (1). Each drive mechanism (6) includes two elliptical plates (62), which are located on both sides of the connecting rod assembly (63) and the electric lead screw (61). The output end of the electric lead screw (61) is provided with a sliding pin (64), and the middle part of the elliptical plate (62) is provided with a slide rail (65). The sliding pin (64) is slidably connected to the slide rail (65). The bracket (2) is provided with a driven mechanism (7), which includes a first rotating rod (71), a second rotating rod (72) and an angle rotating motor (73). One end of the first rotating rod (71) is rotatably connected to the bottom end of the bracket (2), and the other end of the first rotating rod (71) is rotatably connected to one end of the second rotating rod (72). When the lifting plate (3) is in a falling state, the end of the second rotating rod (72) connected to the first rotating rod (71) abuts against the upper surface of the lifting plate (3). Angle rotation motors (73) are connected to the rotation shafts at both ends of the first rotating rod (71). The two angle rotation motors (73) are used to drive the first rotating rod (71) and the second rotating rod (72) to rotate. The bottom end of the bracket (2) is movably connected to a built-in lead screw (74), and a receiving groove (75) is provided in the second rotating rod (72). When the lifting plate (3) is in the falling state, the built-in lead screw (74) and the receiving groove (75) are slidably connected along the length direction of the second rotating rod (72).

2. A tower filter press according to claim 1, characterized in that: A guide plate (8) is provided between the base (1) and the bracket (2), and the guide plate (8) passes through the lifting plate (3) and is perpendicular to the lifting plate (3).

3. A tower filter press according to claim 2, characterized in that: The lifting plate (3) is rotatably connected to a guide wheel (9), and the guide plate (8) is connected to the lifting plate (3) through the guide wheel (9). The guide wheel (9) and the guide plate (8) are in a rolling connection.

4. A tower filter press according to claim 2, characterized in that: The upper end of the guide plate (8) is provided with an upper fixing groove (10) and a lower fixing groove (11). The upper end of the lifting plate (3) is provided with a trapezoidal locking pin (12). When the lifting plate (3) is in the raised state, the trapezoidal locking pin (12) is connected to the upper fixing groove (10). When the lifting plate (3) is in the lowered state, the trapezoidal locking pin (12) is connected to the lower fixing groove (11).

5. A tower filter press according to claim 1, characterized in that: The connecting rod assembly (63) includes an adjusting nut (631), a positive lead screw (632), and a negative lead screw (633). The positive lead screw (632) is connected to the negative lead screw (633) through the adjusting nut (631). The adjusting nut (631) is threadedly connected to the positive lead screw (632) and the negative lead screw (633) respectively.

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