Axial filter plate separation mechanism of plate-and-frame filter press

Abstract

The utility model relates to the technical field of filter pressing equipment, in particular to a filter plate axial separation mechanism of a plate-and-frame filter press, which comprises a moving seat arranged in a reciprocating manner relative to a filter plate, and a power piece used for driving the moving seat to reciprocate, the ends, away from each other, of the pushing block and the pulling block are rotationally arranged at the two ends of the moving base respectively, the side wall of the filter plate is provided with a filter plate handle used in cooperation with the moving base, and a containing gap used for containing the filter plate handle is formed between the pushing block and the pulling block. One ends, close to each other, of the push block and the pull block are used for respectively propping against two ends of the filter plate handle to limit the filter plate handle in the accommodating gap; when the power piece drives the moving seat to move forwards, the pulling block is propped against and pressed down by the filter plate handle and gives way to enable the filter plate handle to enter the accommodating gap, then the pulling block is reset and propped against the filter plate handle, and when the power piece drives the moving seat to move backwards, the pulling block is driven by the moving seat to prop against and pull the filter plate handle to separate the filter plate.

Description

Technical Field

[0001] The utility model relates to the technical field of filter pressing equipment, and particularly discloses an axial separation mechanism for filter plates of a plate and frame filter press. Background Art

[0002] A plate and frame filter press is a common solid-liquid separation device, which is widely used in industries such as chemical industry, food processing, and environmental protection. Its basic structure includes filter plates and pull plates. Filter cloth is laid on the filter plates, and solid-liquid separation is achieved through hydraulic or mechanical pressure. In traditional plate and frame filter presses, the main function of the pull plates is to move and support the filter plates during the filtration operation to ensure the smooth progress of the operation.

[0003] However, during use, solid particles such as sludge and solid particles are likely to accumulate on the filter plates. The attachment of these particles to the filter plates will lead to a decrease in filtration efficiency, and at the same time, it will also increase the maintenance cost and operation complexity of the equipment. Traditional cleaning methods include manual cleaning or using external force equipment to shake off, but these methods are inefficient, inconvenient to operate, and may damage the filter plates. Content of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide an axial separation mechanism for filter plates of a plate and frame filter press.

[0005] To achieve the above purpose, an axial separation mechanism for filter plates of a plate and frame filter press of the utility model includes a moving seat that reciprocally moves relative to the filter plates and a power member for driving the moving seat to reciprocally move. A pulling block is provided on the moving seat, and the pulling is used to separate two adjacent filter plates when the moving seat moves; a pushing block is also provided on the moving seat. The ends of the pushing block and the pulling block that are away from each other are respectively rotatably provided at both ends in the length direction of the moving seat via elastic members. A filter plate handle for cooperating with the moving seat is provided on the side wall of the filter plate. A receiving gap for accommodating the filter plate handle is formed between the pushing block and the pulling block. The ends of the pushing block and the pulling block that are close to each other are used to respectively abut against both ends of the filter plate handle to limit it in the receiving gap;

[0006] When the power member drives the moving seat to move forward, the pulling block is pressed down and yields under the abutment of the filter plate handle so that the filter plate handle enters the receiving gap. After the filter plate handle enters the receiving gap, the pulling block is reset under the action of the elastic member and abuts against the filter plate handle. When the power member drives the moving seat to move backward, the pulling block abuts against the filter plate handle under the drive of the moving seat to drive the filter plate away.

[0007] Further, an inclined guide surface is provided on the outer side of the pulling block. An included angle is provided between the inclined guide surface of the pulling block and the bearing surface of the moving seat. When the power member drives the moving seat to move forward, the filter plate handle abuts against the inclined guide surface so that the pulling block is pressed down and yields to allow the filter plate handle to enter the receiving gap.

[0008] Further, an arc-shaped convex surface is provided on the outer side of the pushing block. An included angle is provided between the tangent plane of the arc-shaped convex surface and the bearing surface of the moving seat. When the power member drives the moving seat to move in the reverse direction, the filter plate handle after being separated from the pulled block abuts against the arc-shaped convex surface so that the pushing block presses down to make way for the next transfer action of the pulled block.

[0009] Further, the filter plate axial separation mechanism of the plate-and-frame filter press further includes a mounting seat, which is detachably mounted on the moving seat. The two ends of the pulled block and the pushing block that are away from each other are respectively rotatably arranged at the two ends of the mounting seat via elastic members.

[0010] Further, limiting baffles are provided at both ends in the width direction of the moving seat. Fixing pins are penetrated through the limiting baffles. The elastic member is a torsion spring sleeved outside the fixing pins. The pulled block and the pushing block pass through the fixing pins and are rotatably arranged on the moving seat via the torsion spring.

[0011] Further, a stop plane is provided at the free end of the pulled block. The stop plane of the pulled block intersects with its inclined guide surface. When the pulled block is stationary, the stop plane is perpendicular to the bearing surface of the moving seat.

[0012] Further, the filter plate axial separation mechanism of the plate-and-frame filter press further includes a movable stop rod, which reciprocates and moves at one end of the moving seat close to the pulled block. The moving direction of the movable stop rod is parallel to the moving direction of the moving seat. The movable stop rod moves towards the pulled block and extends between the pulled block and the moving seat to limit the rotation of the pulled block.

[0013] Further, the filter plate axial separation mechanism of the plate-and-frame filter press further includes a vibration assembly provided on the moving seat. The vibration assembly includes a driving motor, an eccentric shaft connected to the output shaft of the driving motor, and a transmission rod rotatably sleeved outside the eccentric shaft. The transmission rod reciprocates and moves on the moving seat. The rotation axis of the eccentric shaft is perpendicular to the moving direction of the transmission rod. A bearing seat is provided at the top of the transmission rod. The bearing seat is used to abut against the filter plate handle located above the moving seat. The driving motor drives the transmission rod to drive the bearing seat to reciprocate via the eccentric shaft to transmit the vibration force to the filter plate handle to shake off the sludge on the filter plate.

[0014] Further, the filter plate axial separation mechanism of the plate-and-frame filter press further includes guide rails for guiding the movement path of the moving seat. The guide rails are provided on both sides in the length direction of the external filter press. The moving seat is slidably arranged on the guide rails. The power member is used to drive the moving seat to reciprocate along the guide rails.

[0015] Further, a controller and a distance sensor connected to the controller are provided on the moving seat. The distance sensor is used to detect the displacement distance of the moving seat on the guide rail and feed back a signal to the controller. The controller controls the power component to drive the moving seat to move forward, move backward or stop along the guide rail according to the fed-back signal.

[0016] The filter plate axial separation mechanism of the plate and frame filter press of the present utility model includes a moving seat, a pulling block and a pushing block, which are used to provide precise control and safe operation during the filter plate separation process. The moving seat reciprocates under the drive of a power component, driving the pulling block to separate adjacent filter plates, and at the same time the pushing block assists in fixing the filter plate handle. The inclined guide surface of the pulling block and the arc-shaped convex outer surface of the pushing block are designed so that the separation and repositioning of the filter plates can be effectively guided during the movement. In addition, the addition of the vibration component can drive the filter plates to vibrate up and down through the filter plate handle during the movement of the moving seat, shaking off the residual sludge on the filter plates, further improving the cleaning efficiency and operation reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the present utility model in a disassembled state;

[0019] Figure 3 is a structural schematic diagram of the present utility model when cooperating with an external plate and frame filter press;

[0020] Figure 4 is Figure 3 an enlarged structural schematic diagram of part A in

[0021] Figure 5 is a planar structural schematic diagram of the vibration component of the present utility model.

[0022] Reference numerals include:

[0023] 1. Moving seat; 2. Guide rail; 3. Filter plate handle; 4. Mounting seat; 5. Limit baffle; 51. Fixed pin; 6. Support block; 61. Movable stop bar; 7. Vibration component; 70. Mounting bracket; 701. Support rod; 71. Eccentric shaft; 72. Transmission rod; 73. Bearing seat; 9. Component; 11. Pulling block; 111. Inclined guide surface; 112. Stopping plane; 12. Pushing block; 121. Arc-shaped convex outer surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the embodiments does not limit the present utility model.

[0025] Please refer toFigures 1 to 5 As shown, a filter plate axial separation mechanism of a plate and frame filter press of the utility model comprises a moving seat 1 which is arranged to move reciprocally relative to the filter plate, a power member for driving the moving seat 1 to move reciprocally, a pulling block 11 is arranged on the moving seat 1, and the pulling is used to separate two adjacent filter plates when the moving seat 1 moves; a pushing block 12 is also arranged on the moving seat 1, and the ends of the pushing block 12 and the pulling block 11 which are away from each other are respectively rotatably arranged at the two ends in the length direction of the moving seat 1 via elastic members, a filter plate handle 3 which is used in conjunction with the moving seat 1 is arranged on the side wall of the filter plate, an accommodating gap for accommodating the filter plate handle 3 is formed between the pushing block 12 and the pulling block 11, and the ends of the pushing block 12 and the pulling block 11 which are close to each other are used to respectively contact the two ends of the filter plate handle 3 to limit it within the accommodating gap;

[0026] When the power member drives the moving seat 1 to move forward, the pulling block 11 is pressed down by the filter plate handle 3 and gives way so that the filter plate handle 3 enters the accommodating gap. After the filter plate handle 3 enters the accommodating gap, the pulling block 11 is reset and contacts the filter plate handle 3 under the action of the elastic member. When the power member drives the moving seat 1 to move reversely, the pulling block 11 contacts the filter plate handle 3 driven by the moving seat 1 to take the filter plate away.

[0027] In this embodiment, two guide rails 2 are provided on both sides of the length direction of the plate and frame filter press, and the movable seat 1 is slidably set on the guide rails 2. The power component is selected as a chain transmission system, and the chain transmission system has a control computer, a motor, a hydraulic motor, a sprocket and a chain; the control computer controls the motor to drive the hydraulic motor to work and converts the rotational motion into linear motion through the sprocket chain and transmits it to the movable seat 1, so that the movable seat 1 can move back and forth along the guide rails 2.

[0028] When in use, first install the moving seat 1 on the guide rail 2 and connect it through the sprocket chain transmission mechanism, and place the moving seat 1 at the front end of the guide rail 2, so that the pulling block 11 and the pushing block 12 are in a tilted state; secondly, the moving seat 1 moves forward under the drive of the power component, and the pulling block 11 is pressed down by the filter plate handle 3 when it moves under the filter plate handle 3, and the moving seat 1 continues to move so that the pulling block 11 moves to the rear side of the filter plate handle 3. At this time, the free end of the pulling block 11 automatically tilts up, and the filter plate handle 3 is located in the accommodating gap; then the power component drives the moving seat 1 to move backward, pulls the filter plate to the preset position and then stops, and repeats this step until all the filter plates reach the preset position to achieve axial separation of multiple filter plates.

[0029] Specifically, an inclined guide surface 111 is provided on the outer side of the pulling block 11. There is an included angle between the inclined guide surface 111 of the pulling block 11 and the bearing surface of the moving seat 1. When the power member drives the moving seat 1 to move forward, the filter plate handle 3 abuts against the inclined guide surface 111 so that the pulling block 11 is pressed down to make way for the filter plate handle 3 to enter the accommodation gap. The included angle formed between this inclined guide surface 111 and the moving seat 1 is preferably no more than 90° during actual use. The design of the inclined guide surface 111 enables the pulling block 11 to be driven forward by the power member to guide the filter plate handle 3 to move towards the accommodation gap.

[0030] Specifically, an arc-shaped convex surface 121 is provided on the outer side of the pushing block 12. There is an included angle between the tangent plane of the arc-shaped convex surface 121 and the bearing surface of the moving seat 1. When the power member drives the moving seat 1 to move backward, the filter plate handle 3 separated from the pulling block 11 abuts against the arc-shaped convex surface 121 so that the pushing block 12 is pressed down to make way and cooperate with the next transfer action of the pulling block 11. The interactive design between the plate handle and the arc-shaped convex surface 121 enables the pushing block 12 to be pushed and pressed down when the convex surface of the pushing block 12 contacts the filter plate handle 3, making way for the filter plate handle 3 pulled by the pulling block 11 to move next time. This design coordinates the actions of the pushing block 12 and the pulling block 11 to ensure that when the filter plate handle 3 is operated, the pushing block 12 can respond quickly and be pressed down, providing space and conditions for the movement of the pulling block 11.

[0031] Specifically, the filter plate axial separation mechanism of the plate-and-frame filter press further includes a mounting seat 4. The mounting seat 4 is detachably mounted on the moving seat 1. The two ends of the pulling block 11 and the pushing block 12 that are away from each other are respectively rotatably arranged at the two ends of the mounting seat 4 via elastic members. This design allows for the quick installation and disassembly of the mounting seat 4, facilitating the maintenance and replacement of the pulling block 11 and the pushing block 12, while ensuring the stability and reliability of the structure. The detachable design of the mounting seat 4 enables the pulling block 11 and the pushing block 12 to be maintained and replaced as independent modules, reducing maintenance time and downtime and improving the availability and operating efficiency of the equipment. In addition, the mounting seat 4 as a connection point enhances the overall structural stability and reduces the risk of mechanical wear or damage caused by vibration or load during operation.

[0032] Specifically, limit baffles 5 are provided at both ends of the moving seat 1 in the width direction. A fixing pin 51 is penetrated through the limit baffle 5. The elastic member is a torsion spring sleeved outside the fixing pin 51. The pulling block 11 and the pushing block 12 pass through the fixing pin 51 and are rotatably arranged on the moving seat 1 via the torsion spring. The function of the torsion spring is to provide rotational restraint and restoring force to the pulling block 11 and the pushing block 12, allowing the pulling block 11 and the pushing block 12 to have a certain degree of rotational freedom during operation, ensuring that they can rotate freely on the moving seat 1 and return to a predetermined position after operation. At the same time, it ensures that they will not exceed the specified range of the limit baffle 5. The use of the fixing pin 51 and the torsion spring enhances the overall structural stability of the moving seat 1, reduces mechanical wear caused by vibration or movement during operation, and extends the service life of the equipment.

[0033] Specifically, a stop plane 112 is provided at the free end of the pulling block 11. The stop plane 112 of the pulling block 11 intersects with its inclined guide surface 111. When the pulling block 11 is stationary, the stop plane 112 is perpendicular to the bearing surface of the moving seat 1. The stop plane 112 being perpendicular to the bearing surface means it is parallel to the side surface of the filter plate, which can provide the maximum frictional force during pulling to ensure that it will not disengage from the filter plate handle 3. The intersecting arrangement of the stop plane 112 and the inclined guide surface 111 enables the pulling block 11 to move along a predetermined inclined direction on the moving seat 1 and maintain a vertical position when stationary, ensuring precise control of the position during operation.

[0034] Specifically, the filter plate axial separation mechanism of the plate and frame filter press further includes a movable stop rod 61. The movable stop rod is reciprocally arranged at one end of the moving seat 1 close to the pulling block 11. The moving direction of the movable stop rod is parallel to the moving direction of the moving seat 1. The movable stop rod moves towards the pulling block 11 and extends between the pulling block 11 and the moving seat 1 to limit the rotation of the pulling block 11. In this embodiment, a support block 6 is provided at one end of the mounting seat 4 close to the pulling block 11. A through hole for accommodating the movement of the movable stop rod 61 is provided on the support block 6. The moving direction of the movable stop rod 61 is parallel to the moving direction of the moving seat 1, usually along the axial direction of the filter plate. By effectively restricting the rotation of the pulling block 11, mechanical wear caused by unnecessary friction or improper position is reduced, thereby extending the service life of the plate and frame filter press and reducing the maintenance cost.

[0035] Specifically, the filter plate axial separation mechanism of the plate and frame filter press further includes a vibration assembly 7 provided on the moving seat 1. The vibration assembly 7 includes a driving motor, an eccentric shaft 71 connected to the output shaft of the driving motor, and a transmission rod 72 rotatably sleeved outside the eccentric shaft 71. A bearing seat 73 is provided at the top of the transmission rod 72, and the bearing seat 73 is used to abut against the filter plate handle 3 located above the moving seat 1. In this embodiment, the vibration assembly 7 has a mounting bracket 70, the mounting bracket 70 is detachably mounted on the moving seat 1, a support rod 701 is provided in the middle of the mounting bracket 70, the transmission rod 72 is slidably arranged on the support rod 701 and rotatably sleeved on the eccentric shaft 71. Under the rotation of the eccentric wheel, the transmission rod 72 is driven to move up and down along the support rod 701 to generate vibration, and the direction of this vibration force is perpendicular to the moving direction of the moving seat 1. This structure can improve the operation efficiency and performance of the plate and frame filter press. Especially when dealing with high-viscosity or difficult-to-separate materials, vibration can help shake off the residual sludge on the filter plate and reduce the operation time of subsequent steps.

[0036] Specifically, the filter plate axial separation mechanism of the plate and frame filter press further includes a guide rail 2 for guiding the movement path of the moving seat 1. The guide rail 2 is arranged on both sides in the length direction of the external filter press, the moving seat 1 is slidably arranged on the guide rail 2, and a power component is used to drive the moving seat 1 to reciprocate along the guide rail 2. During actual use, rollers can be arranged between the guide rail 2 and the moving seat 1 to reduce the friction between the two and improve the movement smoothness. The moving seat 1 is provided on both guide rails 2. During actual use, the two moving seats 1 respectively pull the two filter plate handles 3 on both sides of the filter plate by using a pulling block 11 and a pushing block 12, so that the separation process is more stable.

[0037] Specifically, a controller and a distance sensor connected to the controller are provided on the moving seat 1. The distance sensor is used to detect the displacement distance of the moving seat 1 on the guide rail and feedback a signal to the controller. The controller controls the power component to drive the moving seat 1 to move forward, move backward or stop along the guide rail 2 according to the feedback signal. The controller automatically adjusts the operating state of the power component according to the signal of the distance sensor to realize the automatic forward, backward movement or stop of the moving seat 1. This not only improves the operation convenience but also reduces the risk of human operation errors.

[0038] The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A filter plate axial separation mechanism for a plate-and-frame filter press, comprising a moving seat (1) arranged to reciprocate relative to the filter plate, and a power member for driving the moving seat (1) to reciprocate, wherein the moving seat (1) is provided with a pulling block (11), and the pulling block (11) is used to pull the filter plate to separate it from an adjacent filter plate when the moving seat (1) moves; characterized in that: The movable seat (1) is also provided with a pushing block (12), and the ends of the pushing block (12) and the pulling block (11) that are away from each other are respectively rotatably arranged at the two ends of the length direction of the movable seat (1) via elastic members, and the filter plate handle (3) provided on the side wall of the filter plate is used in conjunction with the movable seat (1), and an accommodating gap for accommodating the filter plate handle (3) is formed between the pushing block (12) and the pulling block (11), and the ends of the pushing block (12) and the pulling block (11) that are close to each other are used to respectively abut against the two sides of the filter plate handle (3) to limit it within the accommodating gap; When the power member drives the movable seat (1) to move forward, the pulling block (11) is pressed down by the filter plate handle (3) and gives way so that the filter plate handle (3) enters the accommodation gap. After the filter plate handle (3) enters the accommodation gap, the pulling block (11) is reset and contacts the filter plate handle (3) under the elastic action of the elastic member. When the power member drives the movable seat (1) to move backward, the pulling block (11) contacts the filter plate handle (3) driven by the movable seat (1) to take the filter plate away.

2. The filter plate axial separation mechanism of the plate and frame filter press according to claim 1, characterized in that: An inclined guide surface (111) is provided on the outer side of the pulling block (11), and an angle is provided between the inclined guide surface (111) of the pulling block (11) and the bearing surface of the movable seat (1). When the power member drives the movable seat (1) to move forward, the filter plate handle (3) contacts the inclined guide surface (111) so that the pulling block (11) is pressed downward to give way and the filter plate handle (3) enters the accommodating gap.

3. The filter plate axial separation mechanism of the plate and frame filter press according to claim 1, characterized in that: The outer side of the pushing block (12) is provided with an arc-shaped outer convex surface (121), and an angle is provided between the tangent surface of the arc-shaped outer convex surface (121) and the bearing surface of the moving seat (1). When the power member drives the moving seat (1) to move in the reverse direction, the filter plate handle (3) that has been taken away by the pulling block (11) contacts the arc-shaped outer convex surface (121), so that the pushing block (12) is pressed down to make way for the next moving action of the pulling block (11).

4. The filter plate axial separation mechanism of the plate and frame filter press according to claim 1, characterized in that: The filter plate axial separation mechanism of the plate and frame filter press also includes a mounting seat (4), which is detachably mounted on the movable seat (1), and the two ends of the pulling block (11) and the pushing block (12) that are away from each other are rotatably arranged at the two ends of the mounting seat (4) via elastic members.

5. The filter plate axial separation mechanism of the plate and frame filter press according to claim 1, characterized in that: The movable seat (1) is provided with limit baffles (5) at both ends in the width direction, and a fixing pin (51) is provided through the limit baffle (5), and the elastic member is a torsion spring sleeved on the fixing pin (51), and the pulling block (11) and the pushing block (12) pass through the fixing pin (51) and are rotatably arranged on the movable seat (1) via the torsion spring outside the fixing pin (51).

6. The filter plate axial separation mechanism of the plate and frame filter press according to claim 2, characterized in that: The free end of the pulling block (11) is provided with a stopping plane (112), and the stopping plane (112) of the pulling block (11) and its inclined guide surface (111) are arranged crosswise, and when the pulling block (11) is stationary, the stopping plane (112) and the bearing surface of the moving seat (1) are perpendicular to each other.

7. The filter plate axial separation mechanism of the plate and frame filter press according to claim 2, characterized in that: The filter plate axial separation mechanism of the plate and frame filter press also includes a movable gear rod (61), which is reciprocatingly arranged at one end of the movable seat (1) close to the pulling block (11), and the moving direction of the movable gear rod (61) is arranged parallel to the moving direction of the movable seat (1). The movable gear rod (61) moves toward the pulling block (11) and extends between the pulling block (11) and the movable seat (1) to limit the rotation of the pulling block (11).

8. The filter plate axial separation mechanism of the plate and frame filter press according to claim 1, characterized in that: The filter plate axial separation mechanism of the plate and frame filter press also includes a vibration assembly (7) arranged on the movable seat (1), the vibration assembly (7) including a driving motor, an eccentric shaft (71) connected to the output shaft of the driving motor, and a transmission rod (72) rotatably sleeved on the outer side of the eccentric shaft (71), the transmission rod (72) being arranged on the movable seat (1) to move back and forth, the rotation axis of the eccentric shaft (71) and the moving direction of the transmission rod (72) being perpendicular to each other, a bearing seat (73) being provided on the top of the transmission rod (72), the bearing seat (73) being used to abut against the filter plate handle (3) located above the movable seat (1), the driving motor drives the transmission rod (72) via the eccentric shaft (71) to link the bearing seat (73) to move back and forth, and transmits the vibration force to the filter plate handle (3) to shake off the sludge on the filter plate.

9. The filter plate axial separation mechanism of the plate and frame filter press according to claim 1, characterized in that: The filter plate axial separation mechanism of the plate and frame filter press also includes a guide rail (2) for guiding the movement path of the movable seat (1); the guide rail (2) is arranged on both sides of the length direction of the external filter press; the movable seat (1) is slidably arranged on the guide rail (2); and the power member is used to drive the movable seat (1) to reciprocate along the guide rail (2).

10. The filter plate axial separation mechanism of the plate and frame filter press according to claim 9, characterized in that: The movable seat (1) is provided with a controller and a distance sensor connected to the controller. The distance sensor is used to detect the displacement distance of the movable seat (1) on the guide rail and to feed back a signal to the controller. The controller controls the power member to drive the movable seat (1) to reciprocate along the guide rail (2) according to the feedback signal.

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