Cloth folding device for press cage of filter press

Abstract

The utility model discloses a press cage cloth folding device of a filter press, which comprises a press cage, a filter cloth traction frame is arranged above the press cage, a first hydraulic cylinder is arranged on one side of the filter cloth traction frame, the first hydraulic cylinder can drive the filter cloth traction frame to horizontally move above the press cage, and a transmission roller used for dragging filter cloth is arranged on the upper portion of the filter cloth traction frame. And a plurality of groups of flattening rollers are mounted at the lower part of the filter cloth traction frame and are used for flattening the filter cloth laid in the pressing cage. The pressing device has the beneficial effects that the first hydraulic cylinder is arranged to drive the filter cloth traction frame to horizontally reciprocate above the pressing cage to distribute the materials, and the flattening roller can flatten the filter cloth which is stacked below and sludge in the filter cloth in the process of moving along with the filter cloth traction frame; the filter cloth and cloth sludge are kept in a flat state, the thickness deviation between sludge materials is reduced, and the sludge filter pressing effect of a subsequent filter press is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of cloth stacking mechanism for filter press cages, and in particular to a cloth stacking device for filter press cages. Background Technology

[0002] Vertical sludge deep pressure filter dewatering equipment is a type of mechanical dewatering equipment that has gradually emerged in recent years. Compared with common sludge dewatering machines, it has the advantages of simple system, larger single processing capacity, lower operating cost, and high-pressure mechanical vertical extrusion of sludge. Under the conditions of proper selection and dosage of equipment reagents and precise control, the moisture content of the influent sludge is about 80%, and the average moisture content of the outfluent sludge can reach 50%-55%. The sludge feeding mechanism is an important component of the vertical sludge deep pressure filter dewatering equipment. After the sludge comes out of the hopper, it is fed onto the filter belt through the feeding system.

[0003] During the material feeding process, the filter press cage requires the cooperation of a folding device and a feeding device to sandwich the sludge between the upper and lower layers of filter cloth. Although the discharge end of the feeding device of some existing filter press cages can achieve uniform material discharge during the material feeding process, the folded filter cloth changes from a taut state to a slack state after entering the filter press cage. This causes the sludge on the filter cloth to accumulate in some areas, resulting in deviations in the thickness of the sludge material. This affects the sludge filtration effect in the subsequent filtration process. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of some existing filter press cages. Although the discharge end of the cloth feeding device can achieve uniform discharge during the cloth feeding process, the folded filter cloth changes from a tense state to a relaxed state after entering the cage, which causes the sludge on the filter cloth to easily accumulate and the thickness of the sludge to deviate. This affects the sludge filtration effect in the subsequent filtration process. The invention provides a cloth folding device for filter press cages.

[0005] The purpose of this utility model is achieved through the following technical solution: a filter press cage stacking device, including a cage, a filter cloth traction frame is provided above the cage, a first hydraulic cylinder is installed on one side of the filter cloth traction frame, the first hydraulic cylinder can drive the filter cloth traction frame to move horizontally above the cage, a transmission roller for traction of the filter cloth is provided on the upper part of the filter cloth traction frame, and multiple sets of flattening rollers are installed on the lower part of the filter cloth traction frame. The flattening rollers are responsible for flattening the filter cloth laid in the cage and the sludge material below. By setting the transmission rollers, the filter cloth can be stably tractioned and driven, ensuring the stability of the movement of the filter cloth and the sludge material.

[0006] The filter cloth traction frame has liftable bearing seats installed on both inner sides. The flattening roller is installed between the two sets of bearing seats, and the two ends of the flattening roller are rotatably connected to the two ends of the bearing seats. The filter cloth traction frame has corresponding blocks installed on both inner sides. Telescopic tubes are installed between the blocks and the bearing seats. Compression springs corresponding to the telescopic tubes are installed between the blocks and the bearing seats. The compression springs are sleeved on the outside of the telescopic tubes. The filter cloth traction frame is driven to move horizontally back and forth above the press cage to distribute the filter cloth. As the filter cloth traction frame moves, the flattening roller can flatten the filter cloth and the sludge inside, which has already been stacked below, keeping the filter cloth and the sludge in a flat state, reducing the thickness deviation between the sludge and the wrinkles of the filter cloth, and ensuring the filtration effect of the filter press on the sludge. At the same time, the telescopic tube and the compression spring are set to cooperate to give the flattening roller a certain lifting compensation function, which improves the flattening effect of the flattening roller on the filter cloth and the sludge inside.

[0007] A further technical solution is that the filter cloth traction frame has grooves on both inner sides, and a slider that is slidably connected to the groove is installed on one side of the bearing seat. By setting the slider and the groove, the stability between the pressing roller and the filter cloth traction frame during the lifting process can be ensured, thus ensuring the stability of the pressing roller's operation.

[0008] A further technical solution is to install a buffer roller at one end of the filter cloth traction frame near the pressing cage. The buffer roller is located below the drive roller and the buffer roller is inclined to the drive roller. By setting the buffer roller to be inclined to the drive roller, the buffer roller can play a buffering role when the drive roller pulls the filter cloth and sludge into the pressing cage, ensuring that the filter cloth and sludge fall stably into the pressing cage, ensuring the sludge material distribution effect, and reducing the accumulation of sludge during material discharge.

[0009] A further technical solution involves installing a first electric push rod and a second electric push rod at each end of the press cage. The telescopic end of the first electric push rod is equipped with a second pressure rod for pressing the filter cloth, and the telescopic end of the second electric push rod is used to press the first pressure rod of the filter cloth. A second infrared receiver is installed on the first electric push rod, and a first infrared receiver is installed on the second electric push rod. An infrared transmitter, corresponding to the first and second infrared receivers, is installed on the filter cloth traction frame. All the first and second electric push rods, the first and second infrared receivers, and the infrared transmitters are connected to a control center. During the process of the filter cloth traction frame pulling the filter cloth towards the press cage, when the first infrared receiver receives a signal emitted by the infrared transmitter, it sends a signal to the control center, which then controls the operation. The second electric push rod drives the first pressure rod to press the filter cloth. The first electric push rod drives the second pressure rod to retract. At this time, the transmission roller on the filter cloth traction frame pulls the filter cloth to continue moving above the first pressure rod, thus completing the first fold of the filter cloth. When the second infrared receiver detects the signal from the infrared transmitter, the second infrared receiver sends a signal to the control center. The control center controls the first electric push rod to drive the second pressure rod to press the filter cloth, and at the same time controls the filter cloth traction frame to pull the transmission roller back, thus completing the first fold of the filter cloth. The first and second folds can complete the folding operation of the filter cloth. By setting the first electric push rod, the second electric push rod, the first infrared receiver, the second infrared receiver, and the infrared transmitter to be connected to the control center, the automatic folding of the equipment can be realized, ensuring the smooth operation of the equipment.

[0010] A further technical solution is to install a feeding mechanism on one side of the pressing cage, which is located above the filter cloth traction frame and connected to the control center. By setting up the control center connection, material can be intermittently fed onto the filter cloth during the stacking process, thereby filling the pressing cage with sludge and covering the sludge with the filter cloth, realizing automatic feeding and improving the feeding efficiency of the equipment.

[0011] A further technical solution involves installing a second hydraulic cylinder at the bottom of the pressing cage. This second hydraulic cylinder is connected to the control center. The telescopic end of the second hydraulic cylinder extends into the pressing cage and is equipped with a support plate. The support plate is responsible for raising and lowering the filter cloth inside the pressing cage. By connecting the second hydraulic cylinder to the control center, after the equipment completes the single-layer cloth application in the pressing cage, the control center controls the second hydraulic cylinder to lower the support plate by a certain height. This keeps the height of the cloth and the height of the filter cloth traction frame stable, ensuring that the filter cloth traction frame can apply the cloth stably and improving the cloth application effect of the equipment.

[0012] This utility model has the following advantages: By setting a transmission roller, the filter cloth can be stably pulled and driven, ensuring the stability of the movement of the filter cloth and the sludge. By setting a first hydraulic cylinder to drive the filter cloth traction frame to move horizontally back and forth above the press cage for cloth distribution, the flattening roller can flatten the filter cloth and the sludge inside the filter cloth that have been stacked below as the filter cloth traction frame moves, keeping the filter cloth and the sludge in a flat state, reducing the thickness deviation between the sludge materials, and ensuring the filtration effect of the subsequent filter press. At the same time, the combination of the telescopic tube and the compression spring gives the flattening roller a certain lifting compensation function, improving the flattening effect of the flattening roller on the filter cloth and the sludge inside. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of another state structure of the present invention;

[0016] Figure 4 This is a partial sectional view of the side structure of the filter cloth traction frame in this utility model;

[0017] Figure 5 This is a front view sectional view of the filter cloth traction frame in this utility model;

[0018] In the diagram, 1. Pressing cage; 2. Filter cloth traction frame; 3. First hydraulic cylinder; 4. Transmission roller; 5. Flattening roller; 6. Feeding mechanism; 7. Stop block; 8. Bearing seat; 9. Telescopic tube; 10. Compression spring; 11. Sliding block; 12. Slide groove; 13. Buffer roller; 14. Second hydraulic cylinder; 15. Support plate; 16. First electric push rod; 17. Second electric push rod; 18. First infrared receiver; 19. Second infrared receiver; 20. Infrared transmitter; 21. Filter cloth; 22. First pressure rod; 23. Second pressure rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-5As shown, a filter press cage stacking device includes a cage 1, a filter cloth traction frame 2 is provided above the cage 1, a first hydraulic cylinder 3 is installed on one side of the filter cloth traction frame 2, the first hydraulic cylinder 3 can drive the filter cloth traction frame 2 to move horizontally above the cage 1, a transmission roller 4 for traction of filter cloth 21 is provided on the upper part of the filter cloth traction frame 2, and multiple sets of flattening rollers 5 are installed on the lower part of the filter cloth traction frame 2. The flattening rollers 5 are responsible for flattening the filter cloth 21 laid in the cage 1 and the sludge material below it. By setting the transmission rollers 4, the filter cloth 21 can be stably tractioned and driven, ensuring the stability of the movement of the filter cloth 21 and the cloth sludge.

[0026] The filter cloth traction frame 2 has two liftable bearing seats 8 installed on its inner sides. A flattening roller 5 is installed between the two sets of bearing seats 8, with both ends of the roller 5 rotatably connected to the two ends of the bearing seats 8. The filter cloth traction frame 2 also has two corresponding stops 7 installed on its inner sides. A telescopic tube 9 is installed between the stop 7 and the bearing seat 8, and a compression spring 10 corresponding to the telescopic tube 9 is installed between the stop 7 and the bearing seat 8. The compression spring 10 is sleeved on the outside of the telescopic tube 9. The filter cloth traction frame 2 is driven by a first hydraulic cylinder 3 within the press cage 1. The upper horizontal reciprocating movement spreads the material. As the filter cloth traction frame 2 moves, the pressing roller 5 can flatten the already stacked filter cloth 21 and the sludge inside, keeping the filter cloth 21 and the sludge in a flat state, reducing the thickness deviation between sludge materials and the wrinkles of the filter cloth 21, and ensuring the filtration effect of the filter press on the sludge. At the same time, the telescopic tube 9 and the compression spring 10 are set to cooperate to give the pressing roller 5 a certain lifting compensation function, which improves the flattening effect of the pressing roller 5 on the filter cloth 21 and the sludge inside.

[0027] The filter cloth traction frame 2 has grooves 12 on both inner sides. A slider 11 that is slidably connected to the groove 12 is installed on one side of the bearing seat 8. By setting the slider 11 and the groove 12, the stability between the pressing roller 5 and the filter cloth traction frame 2 during the lifting process can be guaranteed, thus ensuring the stability of the pressing roller 5 during operation.

[0028] A buffer roller 13 is installed at one end of the filter cloth traction frame 2 near the press cage 1. The buffer roller 13 is located below the drive roller 4 and the buffer roller 13 and the drive roller 4 are inclined. By setting the buffer roller 13 and the drive roller 4 to be inclined, the buffer roller 13 can play a buffering role during the process of the drive roller 4 pulling the filter cloth 21 and sludge into the press cage 1, ensuring that the filter cloth 21 and sludge fall stably into the press cage 1, ensuring the sludge material distribution effect, and reducing the accumulation of sludge during material falling.

[0029] A first electric push rod 16 and a second electric push rod 17 are respectively installed at both ends of the press cage 1. The telescopic end of the first electric push rod 16 is equipped with a second pressing rod 23 for pressing the filter cloth 21, and the telescopic end of the second electric push rod 17 is equipped with a first pressing rod 22 for pressing the filter cloth 21. A second infrared receiver 19 is installed on the first electric push rod 16, and a first infrared receiver 18 is installed on the second electric push rod 17. An infrared transmitter 20 corresponding to the first infrared receiver 18 and the second infrared receiver 19 is installed on the filter cloth traction frame 2. The first electric push rod 16, the second electric push rod 17, the first infrared receiver 18, the second infrared receiver 19, and the infrared transmitter 20 are all connected to the control center. During the process of the filter cloth traction frame 2 pulling the filter cloth 21 to move the cloth towards the press cage 1, when the first infrared receiver 18 receives the signal emitted by the infrared transmitter 20, the first infrared receiver 18 sends a signal to the control center, and the control center controls the operation. The second electric push rod 17 drives the first pressure rod 22 to press the filter cloth, and the first electric push rod 16 drives the second pressure rod 23 to retract. At this time, the transmission roller 4 on the filter cloth traction frame 2 pulls the filter cloth 21 to continue moving above the first pressure rod 22, thereby completing the first fold of the filter cloth 21. When the second infrared receiver 19 detects the signal of the infrared transmitter 20, the second infrared receiver 19 sends a signal to the control center. The control center controls the first electric push rod 16 to drive the second pressure rod 23 to press the filter cloth, and at the same time controls the filter cloth traction frame 2 to pull the transmission roller 4 back, thereby completing the first fold of the filter cloth 21. The first fold and the second fold can complete the folding operation of the filter cloth 21. By setting the first electric push rod 16, the second electric push rod 17, the first infrared receiver 18, the second infrared receiver 19 and the infrared transmitter 20 to be connected to the control center, the automatic folding of the equipment can be realized, ensuring the smooth operation of the equipment.

[0030] A feeding mechanism 6 is provided on one side of the pressing cage 1. The feeding mechanism 6 is located above the filter cloth traction frame 2 and is connected to the control center. By setting the feeding mechanism 6 to be connected to the control center, material can be intermittently fed onto the filter cloth 21 during the stacking process, thereby filling the sludge into the pressing cage 1 and making the filter cloth 21 cover the sludge, realizing automatic feeding and feeding, and improving the feeding efficiency of the equipment.

[0031] A second hydraulic cylinder 14 is installed at the bottom of the pressing cage 1. The second hydraulic cylinder 14 is connected to the control center. The telescopic end of the second hydraulic cylinder 14 extends into the pressing cage 1 and is equipped with a support plate 15. The support plate 15 is responsible for driving the filter cloth 21 inside the pressing cage 1 to rise and fall. The connection between the second hydraulic cylinder 14 and the control center allows the control center to control the second hydraulic cylinder 14 to drive the support plate 15 to fall a certain height after the equipment completes the single-layer cloth application in the pressing cage 1. This keeps the height of the cloth and the height of the filter cloth traction frame 2 stable, ensuring that the filter cloth traction frame 2 can stably apply the cloth and improving the cloth application effect of the equipment.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter press cage stacking device, comprising a filter cage (1), characterized in that: A filter cloth traction frame (2) is provided above the press cage (1). A first hydraulic cylinder (3) is installed on one side of the filter cloth traction frame (2). The first hydraulic cylinder (3) can drive the filter cloth traction frame (2) to move horizontally above the press cage (1). A transmission roller (4) for traction of the filter cloth (21) is provided on the upper part of the filter cloth traction frame (2). Multiple sets of flattening rollers (5) are installed on the lower part of the filter cloth traction frame (2). The flattening rollers (5) are responsible for flattening the filter cloth (21) laid in the press cage (1). The filter cloth traction frame (2) is equipped with lifting bearing seats (8) on both inner sides. The flattening roller (5) is installed between the two sets of bearing seats (8). The two ends of the flattening roller (5) are rotatably connected to the two ends of the bearing seats (8). The filter cloth traction frame (2) is equipped with a stop block (7) corresponding to the bearing seat (8) on both inner sides. A telescopic tube (9) is installed between the stop block (7) and the bearing seat (8). A compression spring (10) corresponding to the telescopic tube (9) is installed between the stop block (7) and the bearing seat (8). The compression spring (10) is sleeved on the outside of the telescopic tube (9).

2. The filter press cage stacking device according to claim 1, characterized in that: The filter cloth traction frame (2) has sliding grooves (12) on both inner sides, and a slider (11) that is slidably connected to the sliding grooves (12) is installed on one side of the bearing seat (8).

3. The filter press cage stacking device according to claim 1, characterized in that: The filter cloth traction frame (2) is equipped with a buffer roller (13) at one end near the press cage (1). The buffer roller (13) is located below the transmission roller (4), and the buffer roller (13) and the transmission roller (4) are inclined.

4. The filter press cage stacking device according to claim 1, characterized in that: The two ends of the pressing cage (1) are respectively equipped with a first electric push rod (16) and a second electric push rod (17). The telescopic end of the first electric push rod (16) is equipped with a second pressure rod (23) for pressing the filter cloth (21). The telescopic end of the second electric push rod (17) is equipped with a first pressure rod (22) for pressing the filter cloth (21). A second infrared receiver (19) is installed on the first electric push rod (16). A first infrared receiver (18) is installed on the second electric push rod (17). An infrared transmitter (20) corresponding to the first infrared receiver (18) and the second infrared receiver (19) is installed on the filter cloth traction frame (2). The first electric push rod (16), the second electric push rod (17), the first infrared receiver (18), the second infrared receiver (19) and the infrared transmitter (20) are all connected to the control center.

5. The filter press cage stacking device according to claim 1, characterized in that: A feeding mechanism (6) is provided on one side of the press cage (1). The feeding mechanism (6) is located above the filter cloth traction frame (2) and is connected to the control center.

6. The filter press cage stacking device according to claim 1, characterized in that: The bottom of the press cage (1) is equipped with a second hydraulic cylinder (14). The telescopic end of the second hydraulic cylinder (14) extends into the press cage (1) and is equipped with a support plate (15). The support plate (15) is responsible for driving the filter cloth (21) inside the press cage (1) to rise and fall.

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