Plate-type full-automatic filter press

Abstract

The utility model discloses a plate-type full-automatic filter press, which solves the problems that the traditional filter press is low in production efficiency and cannot realize automatic operation, and comprises a filter pressing component, an upper pressing plate, a lower pressing plate and a hydraulic oil cylinder, wherein the filter pressing assembly comprises a plurality of filter pressing plates which are sequentially and horizontally arranged from top to bottom, the upper surface of each filter pressing plate is used for material distribution, and the plurality of filter pressing plates are horizontally arranged between an upper pressing plate and a lower pressing plate and are parallel to the upper pressing plate and the lower pressing plate; the hydraulic oil cylinder is connected to the bottom of the filter pressing assembly, an oil inlet of the hydraulic oil cylinder is connected with the hydraulic station, filter cloth is arranged between the filter pressing plates, the filter press is further provided with a driving motor, the driving motor is connected with the filter cloth through a driving roller, and the filter cloth is driven by the driving roller to rotate. And a tension roller is arranged to adjust the tension degree. The filter pressing plate disclosed by the utility model adopts a split type design, is convenient to transport and store, and simultaneously improves the toughness and maintainability of the filter plate.

Description

Technical Field

[0001] The utility model relates to a filter press, in particular to a plate type full-automatic filter press. Background Art

[0002] There are many deficiencies in the technology and structure of existing filtering and pressing devices. Traditional horizontal manual or semi-automatic pressure filtration equipment mostly uses filter plate frames made of plastic products. Such equipment has obvious shortcomings in production efficiency, and due to a large number of manual operations during use, it is easy to cause environmental pollution. In addition, although the semi-automatic vertical pressure filtration device introduces an electric control method, due to the poor automation cooperation performance of other mechanisms, the overall stability and production efficiency are still not satisfactory. Especially when the sealed cavity is under pressure, the equipment is prone to vibration and liquid spraying phenomena, which not only affect production efficiency but also increase maintenance costs. More importantly, in terms of the cleaning and replacement of filter cloth, these devices basically cannot achieve automatic operation and cannot meet the requirements of modern industrial production for a fully automated processing process. Content of the Utility Model

[0003] The utility model provides a plate type full-automatic filter press to solve the technical problems of low production efficiency and inability to achieve automatic operation of traditional filter presses.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A plate type full-automatic filter press provided by the present application includes a filter pressing assembly, an upper pressing plate, a lower pressing plate, and a hydraulic cylinder; wherein, the filter pressing assembly includes a plurality of filter pressing plates horizontally arranged from top to bottom in sequence, the upper surface of each filter pressing plate is used for cloth feeding, and the plurality of filter pressing plates are horizontally arranged between the upper pressing plate and the lower pressing plate and are parallel to them; the hydraulic cylinder is connected to the bottom of the filter pressing assembly, the oil inlet of the hydraulic cylinder is connected to a hydraulic station, the hydraulic station transports hydraulic oil to the hydraulic cylinder through an oil pipe, and the hydraulic oil generates pressure in the cylinder, thereby driving the piston rod of the cylinder to perform lifting motion, and its lifting motion is used to achieve two functions respectively: driving each filter pressing plate to rise so that each filter pressing plate is in close contact; driving each filter pressing plate to descend and generating a gap between adjacent filter pressing plates; a filter cloth is arranged between the filter pressing plates, and a driving motor is also arranged on the filter press, the driving motor is connected to the filter cloth through a driving roller, the filter cloth is driven to rotate by the driving roller, and a tensioning roller is arranged to adjust the tension.

[0006] Further, a filter cloth roller is arranged on one side of each filter pressing plate, and the filter cloth rollers of two adjacent filter pressing plates are located in opposite directions of the filter pressing plate.

[0007] Further, the lowermost filter pressing plate is provided with an upper pressing surface, and the remaining filter pressing plates are provided with upper and lower pressing surfaces. A gap is provided between the lower pressing surface of the upper filter pressing plate and the upper pressing surface of the lower filter pressing plate. The filter cloth passes through the filter cloth roller through the gap, and the filter cloth is arranged in an S shape on the filter pressing assembly.

[0008] Further, the filter pressing plate is provided with a filtrate inlet and a filter pressing water outlet.

[0009] The beneficial effects achieved by the present utility model are as follows:

[0010] The plate-type full-automatic filter press provided by the present utility model realizes the full-automatic operation from feeding and filtering, backfeeding and pressure relief, filter cake air drying, exhaust pressure relief to filter cloth tensioning, driving discharge and relaxation through the integrated hydraulic system and electrical control system, greatly improving the production efficiency and automation level; by realizing the automatic cleaning and replacement of the filter cloth, the environmental pollution problem caused by improper manual operation is reduced. At the same time, the split structure design makes the replacement of the filter plate and the filter screen more accurate, avoiding the waste of resources. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0012] Figure 2 is a schematic structural diagram of the filter pressing plate of the present utility model.

[0013] Reference Signs:

[0014] 1. Filter Pressing Plate; 11. First Filter Pressing Plate; 12. Second Filter Pressing Plate; 13. Connection Assembly; 131. Connection Block; 132. Locking Screw; 2. Upper Pressing Plate; 3. Lower Pressing Plate; 4. Hydraulic Cylinder; 5. Filter Cloth; 6. Driving Motor; 7. Driving Roller; 8. Filter Cloth Roller; 9. Filtrate Inlet; 10. Filter Pressing Water Outlet.

[0015] The drawings are only for illustrative purposes and should not be construed as a limitation of this patent; for better illustration of this embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted; the same or similar reference signs correspond to the same or similar components; the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. Detailed Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0017] The technical solutions of the present utility model will be described in detail below in conjunction with specific accompanying drawings.

[0018] As Figure 1 - Figure 2 shown, a plate-type full-automatic filter press includes a filter pressing assembly, an upper pressing plate 2, a lower pressing plate 3, and a hydraulic cylinder 4; wherein, the filter pressing assembly includes a plurality of filter pressing plates 1 arranged horizontally from top to bottom in sequence, the upper surface of each filter pressing plate 1 is used for cloth feeding, and the plurality of filter pressing plates 1 are horizontally arranged between the upper pressing plate 2 and the lower pressing plate 3 and are parallel to them; the hydraulic cylinder 4 is connected to the bottom of the filter pressing assembly, the oil inlet of the hydraulic cylinder 4 is connected to a hydraulic station, and the hydraulic station transports hydraulic oil into the hydraulic cylinder through an oil pipe. The hydraulic oil generates pressure in the cylinder, thereby driving the piston rod of the cylinder to perform lifting motion, and its lifting motion is used to achieve two functions respectively: driving each filter pressing plate to rise so that each filter pressing plate is in close contact; driving each filter pressing plate to descend and generating a gap between adjacent filter pressing plates; a filter cloth 5 is arranged between the filter pressing plates, and a driving motor 6 is also provided on the filter press. The driving motor 6 is connected to the filter cloth 5 through a driving roller 7. The filter cloth 5 is driven to rotate by the driving roller 7, and a tensioning roller is provided to adjust the tension.

[0019] In a specific embodiment, a filter cloth roller 8 is arranged on one side of each filter pressing plate 1, and the filter cloth rollers 8 of two adjacent filter pressing plates 1 are located in opposite directions of the filter pressing plate 1.

[0020] In a specific embodiment, the lowermost filter pressing plate 1 is provided with an upper pressing surface, and the remaining filter pressing plates 1 are provided with an upper pressing surface and a lower pressing surface. A gap is provided between the lower pressing surface of the upper filter pressing plate 1 and the upper pressing surface of the lower filter pressing plate 1. The filter cloth 5 passes through the filter cloth roller 8 through the gap, and the filter cloth 5 is arranged in an S shape on the filter pressing assembly.

[0021] In a specific embodiment, a filtrate inlet 9 and a filter pressing water outlet 10 are provided on the filter pressing plate 1.

[0022] The operation mode of the above plate-type full-automatic filter press will be described in detail below:

[0023] The oil pump of the hydraulic station starts, and the hydraulic cylinder extends to press the platen to the set pressure of 9 - 11 MPa;

[0024] Feed filtration: After the closing pressure reaches the set value, the feed valve opens and the feed pump starts, and the slurry is injected into the platen of the filter press for filtration;

[0025] Return material pressure relief: After the feeding time is up (or the feeding pressure is reached), the return valve opens to discharge the remaining slurry in the feeding pipeline to prepare for the air - drying operation;

[0026] Filter cake air - drying: The air - drying valve opens, and compressed air is introduced into the platen of the filter press to apply wind pressure to the filter cake to dry the moisture in the filter cake;

[0027] Exhaust pressure relief: After the air - drying time is up, the return valve opens again to release the pressure in the platen to ensure that there is no pressure in the platen when it is opened;

[0028] Platen opening: The oil pump of the hydraulic station starts, and the hydraulic cylinder descends;

[0029] Filter cloth tensioning: The oil pump of the hydraulic station starts, the tensioning hydraulic motor rotates, and the tensioning roller is driven by the chain to move downward to tension the filter cloth. If the tensioning is not performed, the filter cloth cannot drive the discharging;

[0030] Filter cloth driven discharging: The oil pump of the hydraulic station starts, the driving motor rotates to drive the filter cloth to run, and the filter cake on the filter cloth is discharged through the scraper. At the same time, the cloth - washing water pump starts and the cloth - washing valve opens to wash the filter cloth. The basis for the completion of discharging is that the filter cloth joint is positioned outside the pressing platen;

[0031] Filter cloth relaxation: After the filter cloth driven discharging is completed, the tensioning hydraulic motor rotates, and the tensioning roller is driven by the chain to move upward to relax the filter cloth, providing enough filter cloth offset length for the platen closing stroke.

[0032] The serial numbers of the embodiments of the present application above are only for description and do not represent the advantages or disadvantages of the embodiments. The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. A plate-type fully automatic filter press, characterized in that: The invention comprises a filter press assembly, an upper pressure plate (2), a lower pressure plate (3), and a hydraulic cylinder (4); wherein the filter press assembly comprises a plurality of filter press plates (1) arranged horizontally in sequence from top to bottom, the upper surface of each filter press plate (1) is used for cloth, and the plurality of filter press plates (1) are arranged horizontally between the upper pressure plate (2) and the lower pressure plate (3) and are parallel thereto; the hydraulic cylinder (4) is connected to the bottom of the filter press assembly, the oil inlet of the hydraulic cylinder (4) is connected to the hydraulic station, filter cloth (5) is arranged between the filter press plates, and the filter press is also provided with a driving motor (6), the driving motor (6) is connected to the filter cloth (5) through a driving roller (7), the filter cloth (5) is driven to rotate by the driving roller (7), and a tensioning roller is provided to adjust the tension.

2. The plate-type fully automatic filter press according to claim 1, characterized in that: A filter cloth drum (8) is provided on one side of each filter press plate (1), and the filter cloth drums (8) of two adjacent filter press plates (1) are located in opposite directions of the filter press plates (1).

3. The plate-type fully automatic filter press according to claim 1, characterized in that: The bottom filter press plate (1) is provided with an upper pressure surface, and the other filter press plates (1) are provided with an upper pressure surface and a lower pressure surface. A gap is provided between the lower pressure surface of the upper filter press plate (1) and the upper pressure surface of the lower filter press plate (1). The filter cloth (5) passes through the gap and passes through the filter cloth drum (8). The filter cloth (5) is provided in an S shape on the filter press assembly.

4. The plate-type fully automatic filter press according to claim 1, characterized in that: The filter press plate (1) is provided with a filtrate feed port (9) and a filter press water outlet (10).

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