Filter press pull plate trolley

Abstract

This utility model discloses a filter press plate-pulling trolley, belonging to the field of filtration technology. It includes: a frame; a drive rod rotatably mounted on the frame; a pull rod rotatably mounted on the frame, the pull rod swinging in the same direction as the drive rod; a connecting rod rotatably mounted in the middle of the frame, with the pull rod and drive rod respectively abutting at both ends of the connecting rod; and an elastic element used to push the connecting rod to an angle position where the drive rod is higher than the pull rod. When the drive frame moves towards the filter plate position near the pull rod, the first filter plate abuts against the drive rod, causing the drive rod to rotate and push the connecting rod to rotate against the elastic force of the elastic element. The rotation of the connecting rod pushes the pull rod to insert between the first and second filter plates. Driving the frame in the opposite direction then pulls the first and second filter plates apart. By driving the sliding motion of the filter press plate-pulling trolley to separate adjacent filter plates, manual separation of the two filter plates is eliminated, thus reducing the manual pulling process.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and in particular to a filter press plate pulling trolley. Background Technology

[0002] After the pressure holding period, the box filter press needs to be unloaded, which involves sequentially pulling apart the multiple parallel filter plates to separate the filter cake from the plates. During unloading, each filter plate is typically pulled apart manually, a process that is quite labor-intensive. Utility Model Content

[0003] The purpose of this utility model is to provide a filter press plate pulling trolley to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: A filter press plate pulling trolley is used to separate two adjacent filter plates in a filter press. The filter press plate pulling trolley includes: a frame; a drive rod rotatably mounted on the frame; a pull rod rotatably mounted on the frame, the swing direction of the pull rod being the same as that of the drive rod; a connecting rod rotatably mounted in the middle of the frame, the pull rod and the drive rod respectively abutting against the two ends of the connecting rod due to gravity; an elastic element installed between the frame and the connecting rod, the elastic force of the elastic element pushing the connecting rod to an angle position where the drive rod is higher than the pull rod; when the frame is driven to move closer to the pull rod towards the filter plate position, the first filter plate abuts against the drive rod, causing the drive rod to rotate and push the connecting rod to rotate against the elastic force of the elastic element. The rotation of the connecting rod pushes the pull rod to insert between the first filter plate and the second filter plate, and then the frame is driven in the opposite direction, which can pull the first filter plate and the second filter plate apart.

[0005] The technical solution has at least the following beneficial effects: by driving the sliding motion of the filter press plate pulling trolley to pull the two adjacent filter plates to separate, it is not necessary to manually separate the two filter plates, thereby reducing the process of manually pulling the filter plates.

[0006] As a further improvement to the above technical solution, a cylindrical bearing for contacting the filter plate is installed at the end of the drive rod away from the rotating part of the frame. By using a cylindrical bearing instead of the drive rod to contact the filter plate, wear from relative sliding friction between the drive rod and the filter plate can be reduced.

[0007] As a further improvement to the above technical solution, one end of the pull rod is rotatably connected to the vehicle frame, and the other end protrudes upward to form a protrusion that can be embedded between the two filter plates. Since the greater the distance of the pull rod from the center of rotation, the greater the displacement of the swing, when the connecting rod pushes the pull rod to a small displacement, the protrusion can generate a large displacement and quickly insert between the two filter plates, improving the stability and reliability of pulling the filter plates.

[0008] As a further improvement to the above technical solution, a push rod is installed at one end of the connecting rod, and one end of the push rod is configured as a hemispherical or arc-shaped surface that abuts against the pull rod. The connecting rod is connected to the pull rod through the push rod, which facilitates the layout between the connecting rod and the pull rod.

[0009] As a further improvement to the above technical solution, a first mounting groove is provided at one end of the connecting rod for the insertion of the push rod, and a first bolt passes through the connecting rod and the push rod. This achieves a detachable connection between the connecting rod and the push rod.

[0010] As a further improvement to the above technical solution, a push rod is installed at the other end of the connecting rod. One end of the push rod is configured as a hemispherical or arc-shaped surface and abuts against the drive rod. The connecting rod is connected to the drive rod through the push rod, which facilitates the layout between the connecting rod and the drive rod.

[0011] As a further improvement to the above technical solution, the elastic element is a helical spring sleeved on the push rod, with one end of the helical spring connected to the frame and the other end connected to the push rod. This design is simple in structure, low in cost, and easy to assemble.

[0012] As a further improvement to the above technical solution, a second mounting groove is provided at the other end of the connecting rod for the insertion of the push rod, and a second bolt passes through the connecting rod and the push rod, thereby achieving a detachable connection between the connecting rod and the push rod.

[0013] As a further improvement to the above technical solution, a drive component is also included, which is installed on the filter press. The frame is slidably disposed on the filter press, and the drive component is used to drive the frame to slide. By driving the frame to slide through the drive component, the filter plates can be pulled, reducing the need for manual pulling of the filter plates.

[0014] As a further improvement to the above technical solution, the driving component includes two sprockets rotatably mounted on the filter press, a chain sleeved around the outer circumference of the two sprockets, and a drive motor for driving one of the sprockets to rotate. The frame is connected to the chain. The drive motor can drive one of the sprockets to rotate, thereby causing the chain to pull the frame to slide and thus pull the filter plate to slide, reducing the need for manual pulling of the filter plate. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a three-dimensional installation diagram of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a side view of the installation diagram of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram showing the positions of the upright plate, tie rod, and drive rod in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation of the pull rod and drive rod in an embodiment of this utility model.

[0021] 10. Filter press; 11. Filter plate; 20. Frame; 30. Drive rod; 31. Cylindrical bearing; 40. Tie rod; 41. Protrusion; 50. Connecting rod; 60. Top rod; 61. Hemispherical surface; 62. First bolt; 70. Push rod; 71. Arc surface; 72. Second bolt; 80. Elastic element; 90. Drive element; 91. Sprocket; 92. Chain. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figure 1 A filter press 10 is a device for solid-liquid separation, on which multiple filter plates 11 are arranged side by side. The filter press 10 uses pressure to force the liquid to be treated through the multiple filter plates 11. The filtered liquid is discharged from the outlet, while the solids remain between the filter plates 11, forming a relatively dry filter cake. By separating two adjacent filter plates 11, the filter cake can be removed and processed. Each filter plate 11 has lugs on both sides, and there is a certain gap between the lugs on the same side of two adjacent filter plates 11 to facilitate separation.

[0027] Reference Figure 1-5 The filter press plate pulling trolley includes a frame 20, a drive rod 30, a pull rod 40, a connecting rod 50, and an elastic element 80.

[0028] The frame 20 includes two vertically arranged side-by-side uprights. One end of the drive rod 30 is fitted with a first pivot, and the two ends of the first pivot are rotatably mounted on opposite sides of the two uprights, thereby rotatably connecting one end of the drive rod 30 to the frame 20. The other end of the drive rod 30 extends out from the top of the two uprights and is fitted with a cylindrical bearing 31.

[0029] The cylindrical bearing 31 includes an inner ring, an outer ring sleeved around the outer circumference of the inner ring, and a plurality of balls located between the inner and outer rings. The inner and outer rings are coaxial and can rotate relative to each other, both being cylindrical. A circular channel is formed between the inner and outer rings for the balls to roll, thus making the relative rotation between the inner and outer rings smoother and more stable. The inner ring of the cylindrical bearing 31 is mounted on the side of the drive rod 30 away from the first rotating shaft, and the outer ring of the cylindrical bearing 31 protrudes from the end and both sides of the drive rod 30.

[0030] One end of the pull rod 40 is fitted with a second pivot, and the two ends of the second pivot are rotatably mounted on opposite sides of two upright plates, thereby rotatably connecting one end of the pull rod 40 to the frame 20. The end of the pull rod 40 away from the second pivot protrudes upward to form a protrusion 41, which is integrally formed with the pull rod 40. The swing angle of the pull rod 40 is the same as the swing angle of the drive rod 30, that is, the end of the pull rod 40 away from the second pivot extends inclined to the upper right, and the end of the drive rod 30 away from the first pivot also extends inclined to the upper right.

[0031] A third pivot is inserted through the middle of the connecting rod 50. The two ends of the third pivot are respectively rotatably installed on opposite sides of the two upright plates, so that the middle of the connecting rod 50 is rotatably connected to the frame 20.

[0032] A push rod 60 is installed at the left end of the connecting rod 50. Specifically, a first mounting groove is formed on the left end face of the connecting rod 50, extending through both the upper and lower sides of the connecting rod 50. The bottom of the push rod 60 is inserted into the first mounting groove. A first bolt 62 is provided through both the left end of the connecting rod 50 and the bottom of the push rod 60 inserted into the first mounting groove. The first bolt 62 assembles and fixes the connecting rod 50 and the push rod 60 together, wherein the number of first bolts 62 can be one, two, or more. The top of the push rod 60 is set as a hemispherical surface 61, which abuts against the side wall of the pull rod 40, and the position where the pull rod 40 is abutted by the push rod 60 is between the second pivot and the protrusion 41. It can be understood that the pull rod 40 has a downward rotation tendency under the action of gravity, and the push rod 60 is on the path of the downward rotation of the pull rod 40, thereby keeping the pull rod 40 and the push rod 60 in a state of relative contact. In other embodiments, the top of the push rod 60 may also be configured as an arc surface, with the arc axis of the arc surface parallel to the rotation axis of the pull rod 40, and the arc surface abutting against the pull rod 40.

[0033] A push rod 70 is installed at the right end of the connecting rod 50. Specifically, a second mounting groove is formed on the right end face of the connecting rod 50, extending through both the upper and lower sides of the connecting rod 50. The bottom of the push rod 70 is embedded in the second mounting groove. A second bolt 72 is inserted through the right end face of the connecting rod 50 and the bottom of the push rod 70 embedded in the second mounting groove, and the second bolt 72 assembles and fixes the connecting rod 50 and the push rod 70 together. The number of second bolts 72 can be one, two, or more. The top of the push rod 70 is set as an arc surface 71, and the axis of the arc surface 71 is parallel to the rotation axis of the drive rod 30. The arc surface 71 at the top of the push rod 70 abuts against the side wall of the drive rod 30, and the position where the drive rod 30 is abutted by the push rod 70 is between the first rotating shaft and the cylindrical bearing 31. In other embodiments, the top of the push rod 70 can also be set as a hemispherical surface, with the hemispherical surface abutting against the side wall of the drive rod 30.

[0034] The elastic element 80 is a helical spring, which is sleeved on the outside of the push rod 70. The bottom end of the helical spring is connected to one of the upright plates, thus connecting the bottom end of the helical spring to the frame 20. The push rod 70 includes a body and a head at the top of the body. The cross-sectional dimension of the head is larger than that of the body, thus forming a stepped transition surface between the head and the body. The top of the helical spring abuts against the stepped surface. The elastic force of the helical spring pushes the push rod 70 upward, thereby pushing the drive rod 30 to swing upward. That is, under the action of the elastic force of the helical spring, the push rod 70 is in a higher position, thus placing the drive rod 30 in a higher position as well, and keeping the drive rod 30 in contact with the push rod 70. At this time, the height of the cylindrical bearing 31 of the drive rod 30 is greater than the height of the protrusion 41. It can be understood that the helical spring has a certain degree of flexibility to meet the swinging motion of the push rod 70.

[0035] In other embodiments, the elastic element 80 may also be a torsion spring, which is sleeved in the third rotating shaft. One elastic end of the torsion spring is connected to one of the vertical plates, and the other elastic end is connected to the connecting rod 50. The torsion of the torsion spring keeps the connecting rod 50 in an angle position with the left lower and the right higher, so that the height of the cylindrical bearing 31 of the drive rod 30 is greater than the height of the protrusion 41.

[0036] The filter press plate pulling trolley also includes a drive unit 90. The drive unit 90 includes two sprockets 91, a chain 92, and a drive motor. The two sprockets 91 are rotatably mounted at both ends of the filter press. The chain 92 is fitted around the outer periphery of both sprockets 91, meaning that each sprocket 91 is engaged with the chain 92, so that rotation of one sprocket 91 drives the other sprocket 91 to rotate. The output end of the drive motor is connected to one of the sprockets 91, allowing the drive motor to drive the rotation of that sprocket, causing the chain 92 to slide cyclically between the two sprockets 91. The frame 20 is slidably mounted on one side of the filter press 10 via guide rails, and is located at the bottom of the plate lugs of the filter plate 11. The frame 20 and the chain 92 are detachably connected by bolts. The drive motor can drive one of the sprockets 91 to rotate, causing the chain 92 to slide along the frame 20 during the sliding process.

[0037] It should be noted that the filter press is equipped with a filter press plate pulling trolley of this embodiment on both sides. The filter press plate pulling trolleys on both sides can pull a filter plate 11 together. The sprockets 91 at the same end on both sides can be connected by a horizontal shaft transmission, so only one drive motor is needed to drive the filter press plate pulling trolleys on both sides to work synchronously.

[0038] With the side of the frame 20 closest to the tie rod 40 as the forward direction, the frame 20 is driven forward toward the filter plates 11 that need to be separated. When the first filter plate 11 passes the tie rod 40, the height of the protrusion 41 is lower than the height of the cylindrical bearing 31, allowing the tie rod 40 to pass through the bottom of the first filter plate 11. When the drive rod 30 passes the first filter plate 11, the lug of the first filter plate 11 interferes with the cylindrical bearing 31, pushing the cylindrical bearing 31 downward. This causes the drive rod 30 to swing downward, pushing the push rod 70 to overcome the spring force of the coil spring and move downward. The downward movement of the push rod 70 causes the top rod 60 at the other end of the connecting rod 50 to move upward, pushing the tie rod 40 to swing upward. This allows it to fit precisely into the gap between the lugs of the first and second filter plates 11. Due to the restriction of the second filter plate 11, the frame 20 cannot continue to move, ensuring that only one filter plate 11 can be pulled at a time. Then drive the frame 20 to move in the opposite direction, i.e., move backward, which can pull the first filter plate 11 and the second filter plate 11 apart.

[0039] After the first filter plate 11 is pulled, because the distance between the first and second filter plates 11 is relatively large, the second filter plate 11 no longer obstructs the progress of the protrusion 41. Therefore, when the frame 20 continues to move forward, the cylindrical bearing 31 can disengage from the first filter plate 11. After the cylindrical bearing 31 disengages from the first filter plate 11, under the elastic force of the coil spring, the push rod 70 pushes the drive rod 30 back to a higher position. At the same time, the push rod 70 pulls the connecting rod 50 to swing, causing the top rod 60 to move downward. The pull rod 40 swings downward under its own weight and returns to a lower position, thus allowing the second filter plate 11 to continue to be pulled, and so on, pulling each filter plate 11 in sequence. In other embodiments, the drive component 90 can also be a cylinder, hydraulic cylinder, or electric cylinder to drive the frame 20 to slide.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A filter press plate pulling trolley for separating two adjacent filter plates (11) in a filter press (10), characterized in that, The filter press plate pulling trolley includes: Frame (20); A drive rod (30) is rotatably mounted on the frame (20); A pull rod (40) is rotatably mounted on the frame (20), and the swing direction of the pull rod (40) is the same as the swing direction of the drive rod (30); The connecting rod (50) is rotatably mounted in the middle of the frame (20), and the pull rod (40) and the drive rod (30) abut against the two ends of the connecting rod (50) due to gravity. An elastic element (80) is installed between the frame (20) and the connecting rod (50). The elastic force of the elastic element (80) pushes the connecting rod (50) to an angle position that makes the drive rod (30) higher than the pull rod (40). When the drive frame (20) moves toward the filter plate (11) near the pull rod (40), the first filter plate (11) abuts against the drive rod (30), causing the drive rod (30) to rotate and push the connecting rod (50) to rotate against the elastic force of the elastic element (80). The rotation of the connecting rod (50) pushes the pull rod (40) to insert between the first filter plate (11) and the second filter plate (11), and then drives the frame (20) in the opposite direction, which can pull the first filter plate (11) and the second filter plate (11) apart.

2. The filter press plate pulling trolley according to claim 1, characterized in that: The drive rod (30) is mounted with a cylindrical bearing (31) at the end away from the frame (20) for contacting the filter plate (11).

3. The filter press plate pulling trolley according to claim 1, characterized in that: One end of the pull rod (40) is rotatably connected to the frame (20), and the other end protrudes upward to form a protrusion (41) that can be embedded between the two filter plates (11).

4. The filter press plate pulling trolley according to claim 1, characterized in that: One end of the connecting rod (50) is equipped with a top rod (60), and one end of the top rod (60) is configured as a hemispherical surface (61) or an arc surface (71) and abuts against the pull rod (40).

5. The filter press plate pulling trolley according to claim 4, characterized in that: The connecting rod (50) has a first mounting groove at one end for inserting the top rod (60), and a first bolt (62) passes between the connecting rod and the top rod.

6. The filter press plate pulling trolley according to claim 1, characterized in that: A push rod (70) is installed at the other end of the connecting rod (50). One end of the push rod (70) is configured as a hemispherical surface (61) or an arc surface (71) and abuts against the drive rod (30).

7. The filter press plate pulling trolley according to claim 6, characterized in that: The elastic element (80) is a helical spring sleeved on the push rod (70), with one end of the helical spring connected to the frame (20) and the other end connected to the push rod (70).

8. The filter press plate pulling trolley according to claim 6, characterized in that: The other end of the connecting rod (50) is provided with a second mounting groove for the push rod (70) to be inserted, and a second bolt (72) is provided between the connecting rod (50) and the push rod (70).

9. A filter press plate pulling trolley according to any one of claims 1-8, characterized in that: It also includes a drive unit (90) installed on the filter press, the frame (20) being slidably disposed on the filter press (10), and the drive unit (90) being used to drive the frame (20) to slide.

10. A filter press plate pulling trolley according to claim 9, characterized in that: The drive unit (90) includes two sprockets (91) rotatably mounted on the filter press, a chain (92) sleeved on the outer periphery of the two sprockets (91), and a drive motor for driving one of the sprockets (91) to rotate. The frame (20) is connected to the chain (92).

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