A new box type filter press device

Abstract

The utility model provides a novel box type filter press device, including frame, two opposite slide rails of setting up in frame horizontally, the both ends of slide rail are provided with first limit board and second limit board respectively, the movable setting of multiple filter plates is arranged in the frame, both sides of filter plate are provided with the sliding block of sliding connection with corresponding slide rail, except the filter plate closest to second limit board, both sides of filter plate are provided with connecting shaft to first limit board direction, the free end of connecting shaft is provided with limit cap, except the filter plate closest to first limit board, both sides of filter plate are provided with the sliding sleeve of sliding connection with corresponding connecting shaft, the filter plate close to second limit board and the same number of filter plates in the direction of first limit board are provided with connecting seat, and the hydraulic telescopic cylinder is installed between every two adjacent connecting seats. The utility model adopts the mode that multiple filter plates open in batches, effectively improves the efficiency of discharging on the basis of saving length as far as possible.

Description

Technical Field

[0001] This utility model belongs to the field of solid-liquid separation technology and relates to a novel box-type filter press device. Background Technology

[0002] In the field of solid-liquid separation, filter presses are widely used as filtration equipment in industries such as chemical, metallurgy, coal, environmental protection, and food. Among them, box-type filter presses have become one of the preferred equipment in many application scenarios due to their advantages such as simple structure, high filtration efficiency, and convenient operation.

[0003] A box-type filter press mainly consists of multiple filter plates arranged in sequence, with filter cloth placed between adjacent filter plates to form a filtration chamber. During operation, the suspension enters the filtration chamber under pressure, solid particles are trapped by the filter cloth to form a filter cake, while the liquid passes through the filter cloth and is discharged, completing the solid-liquid separation process. After the filtration cycle is completed, the filter plates need to be opened one by one to remove the filter cake and start the next cycle.

[0004] With the improvement of industrial automation, the opening and closing of filter plates in box filter presses has gradually become automated. To save installation space, existing technologies often employ a method of sequentially opening the filter plates by moving them back and forth one by one. This involves using a robotic arm or hydraulic device to pull each filter plate backward in turn and pushing it back to its original position after discharge. While this method effectively reduces the overall space occupied by the equipment, in practical use, it has been found that the need to open and reset the filter plates one by one results in a lengthy discharge process, affecting the overall working efficiency of the filter press. Utility Model Content

[0005] The purpose of this invention is to provide a novel box-type filter press device that uses multiple filter plates to be opened in batches, thereby effectively improving the discharge efficiency while minimizing the length of the filter plates.

[0006] To solve the above-mentioned technical problems, this utility model provides a novel box-type filter press device, including a frame. Two opposing slide rails are horizontally arranged within the frame. A first limiting plate and a second limiting plate are respectively provided at both ends of the slide rails. Multiple filter plates are movably arranged within the frame, distributed along the length of the slide rails. Each filter plate has a slider on both sides that is slidably connected to the corresponding slide rail. Except for the filter plate closest to the second limiting plate, each filter plate has a connecting shaft on both sides facing the first limiting plate. Each connecting shaft has a limiting cap at its free end. Except for the filter plate closest to the first limiting plate, each filter plate has a sliding sleeve on both sides that is slidably connected to the corresponding connecting shaft. The connecting shafts on adjacent filter plates are staggered vertically. Connecting seats are provided on both sides of the filter plate closest to the second limiting plate and the filter plates spaced an equal number of times towards the first limiting plate. A hydraulic telescopic cylinder is installed between the first limiting plate and the adjacent connecting seat, and between every two adjacent connecting seats.

[0007] By adopting the above technical solution, during filter press filtration, all hydraulic telescopic cylinders first shorten, squeezing all the filter plates together. After the water is discharged through filter press filtration, filter cake is left in the filter chamber. When it is necessary to open the filter plates to discharge the filter cake, the hydraulic telescopic cylinder closest to the second limit plate extends first. Due to the connection between the connecting shaft and the sliding sleeve, the hydraulic telescopic cylinder drives the filter plates to open one by one, causing the filter cake between two filter plates to fall onto the filter cake conveyor. Subsequently, the next stage hydraulic telescopic cylinder extends, and the previous stage hydraulic telescopic cylinder shortens, causing the opened filter plates to merge towards the second limit plate. The next stage filter plates gradually open to discharge the filter cake, and finally all the filter cake is discharged. After discharge, the adjacent hydraulic telescopic cylinders cooperate in pairs to close the filter plates towards the first limit plate, and the next filter press filtration can be performed.

[0008] The present invention is further configured such that, except for the filter plate closest to the first limiting plate and the filter plate closest to the second limiting plate, filter chamber grooves are provided on both sides of each filter plate. The filter plate closest to the first limiting plate has a filter chamber groove on the side facing the second limiting plate, and the filter plate closest to the second limiting plate has a filter chamber groove on the side facing the first limiting plate. Each filter chamber groove is provided with filter cloth. Except for the filter plate closest to the second limiting plate, a sewage hole is provided through the middle of each filter plate. Except for the filter plate closest to the second limiting plate, a clean water hole is provided through the four corners of each filter plate and communicates with the corresponding filter chamber groove. The first limiting plate has a sewage inlet hole that communicates with the sewage hole. The first limiting plate is connected to the sewage pipe that communicates with the sewage inlet hole. The first limiting plate has four water outlet holes that communicate with each of the clean water holes. The first limiting plate is connected to a clean water pipe that communicates with each water outlet hole.

[0009] The present invention is further configured such that the bottom of each filter chamber is provided with a plurality of support protrusions for supporting the corresponding filter cloth, and gaps are left between the support protrusions.

[0010] The present invention is further configured such that each slide rail is provided with a support slide shaft arranged along its length, and the lower end of each slider is provided with a C-shaped slot that is slidably connected to the corresponding support slide shaft.

[0011] The present invention is further configured such that a filter cake conveyor is horizontally arranged below the filter plate and arranged along its length.

[0012] The present invention is further provided that both sides of the filter cake conveyor are provided with inclined baffles that are inclined upward and outward.

[0013] Compared with the prior art, this utility model uses multiple hydraulic telescopic cylinders for multi-stage opening and closing. Combined with the connection between the connecting shaft and the sliding sleeve, the extension and retraction of one hydraulic telescopic cylinder can drive multiple filter plates to open and close simultaneously. Compared with opening each filter plate one by one, this can effectively improve efficiency. Moreover, compared with opening all the filter plates at the same time, opening the filter plates in batches does not occupy much space. While saving as much length as possible, it effectively improves the efficiency of material discharge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 These are used to display the slide rails, first limiting plate, and second limiting plate on the display stand;

[0016] Figure 3 Used to demonstrate the connection between two filter plates.

[0017] The components are as follows: 1. Frame; 2. Slide rail; 3. First limiting plate; 4. Second limiting plate; 5. Filter plate; 6. Slider; 7. Supporting slide shaft; 8. C-shaped slot; 9. Filter chamber; 10. Filter cloth; 11. Supporting protrusion; 12. Sewage hole; 13. Clean water hole; 14. Sewage pipe; 15. Clean water pipe; 16. Connecting shaft; 17. Limiting cap; 18. Sliding sleeve; 19. Connecting seat; 20. Hydraulic telescopic cylinder; 21. Filter cake conveyor; 22. Inclined side guard. Detailed Implementation

[0018] The present invention provides a novel box-type filter press device in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0019] Example, refer to Figure 1-3 A novel box-type filter press includes a frame 1. Two opposing slide rails 2 are horizontally arranged inside the frame 1. A first limiting plate 3 and a second limiting plate 4 are respectively provided at both ends of the slide rails 2. 60 filter plates 5 are movably arranged inside the frame 1 along the length of the slide rails 2. Each filter plate 5 has a slider 6 on both sides that is slidably connected to the corresponding slide rail 2. Each slide rail 2 has a support slide shaft 7 arranged along its length. The lower end of each slider 6 has a C-shaped groove 8 that is slidably connected to the corresponding support slide shaft 7.

[0020] Except for the filter plate 5 closest to the first limiting plate 3 and the filter plate 5 closest to the second limiting plate 4, each filter plate 5 has a filter chamber groove 9 on both sides. The filter plate 5 closest to the first limiting plate 3 has a filter chamber groove 9 on the side facing the second limiting plate 4, and the filter plate 5 closest to the second limiting plate 4 has a filter chamber groove 9 on the side facing the first limiting plate 3. Each filter chamber groove 9 is provided with a filter cloth 10. The bottom of each filter chamber groove 9 is provided with several support protrusions 11 for supporting the corresponding filter cloth 10, and there are gaps between the support protrusions 11. Except for the filter plate 5 closest to the second limiting plate 4, each filter plate 5 has a sewage hole 12 through its center. Except for the filter plate 5 closest to the second limiting plate 4, each filter plate 5 has a clean water hole 13 through its four corners that communicates with the corresponding filter chamber 9. The first limiting plate 3 has a sewage inlet hole that communicates with the sewage hole 12. The first limiting plate 3 is connected to a sewage pipe 14 that communicates with the sewage inlet hole. The first limiting plate 3 has four water outlet holes that communicate with the clean water holes 13 one by one. The first limiting plate 3 is connected to a clean water pipe 15 that communicates with each water outlet hole.

[0021] Except for the filter plate 5 closest to the second limiting plate 4, each filter plate 5 has a connecting shaft 16 on both sides towards the first limiting plate 3. Each connecting shaft 16 has a limiting cap 17 at its free end. Except for the filter plate 5 closest to the first limiting plate 3, each filter plate 5 has a sliding sleeve 18 on both sides that is slidably connected to the corresponding connecting shaft 16. The connecting shafts 16 on adjacent filter plates 5 are staggered vertically, and this staggering is repeated every three filter plates 5, so that the connecting shafts 16 do not block each other. Each filter plate 5 near the second limiting plate 4 and each filter plate 5 spaced at the same interval towards the first limiting plate 3 has a connecting seat 19 on both sides, with an interval of 12 filter plates 5. A hydraulic telescopic cylinder 20 is installed between the first limiting plate 3 and the adjacent connecting seat 19, and between each pair of adjacent connecting seats 19. A filter cake conveyor 21 is horizontally arranged below the filter plate 5 on the frame 1, and is arranged along its length. Both sides of the filter cake conveyor 21 are provided with an upward and outward inclined baffle 22, which conveys the filter plate 5 that falls on it outward.

[0022] Working principle: During filter press operation, all hydraulic telescopic cylinders 20 first shorten, causing all filter plates 5 to be squeezed together. Two adjacent filter chambers 9 form a filter chamber. Sewage is introduced through sewage pipe 14, and the sewage gradually enters each filter chamber through sequentially connected sewage holes 12. After being filtered by filter cloth 10, clean water gradually flows into the clean water hole 13 and is then discharged through clean water pipe 15. Finally, filter cake is left in the filter chamber. When it is necessary to open the filter plate 5 to discharge the filter cake, the hydraulic telescopic cylinder 20 closest to the second limit plate 4 extends first. The connection between the connecting shaft 16 and the sliding sleeve 18 is achieved by the hydraulic telescopic cylinder 20 driving the filter plates 5 to open one by one, causing the filter cake between two filter plates 5 to fall onto the filter cake conveyor 21. Subsequently, the next-stage hydraulic telescopic cylinder 20 extends while the previous-stage hydraulic telescopic cylinder 20 shortens, causing the opened filter plates 5 to merge towards the second limit plate 4. The next-stage filter plates 5 gradually open to discharge the filter cake, eventually discharging all the filter cake. After discharge, the adjacent hydraulic telescopic cylinders 20 cooperate in pairs to close the filter plates 5 towards the first limit plate 3, allowing for the next filtration cycle.

[0023] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0024] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A novel box-type filter press device, comprising a frame (1), characterized in that, The frame (1) has two horizontally arranged slide rails (2) facing each other. The frame (1) has a first limiting plate (3) and a second limiting plate (4) at both ends of the slide rails (2). The frame (1) has multiple filter plates (5) arranged movably along the length of the slide rails (2). Each filter plate (5) has a slider (6) on both sides that is slidably connected to the corresponding slide rail (2). Except for the filter plate (5) closest to the second limiting plate (4), each filter plate (5) has a connecting shaft (16) on both sides that faces the first limiting plate (3). The free end of each connecting shaft (16) has A limit cap (17) is provided. Except for the filter plate (5) closest to the first limit plate (3), each filter plate (5) is provided with a sliding sleeve (18) on both sides that is slidably connected to the corresponding connecting shaft (16). The connecting shafts (16) on two adjacent filter plates (5) are arranged in an alternating manner. A connecting seat (19) is provided on both sides of the filter plate (5) close to the second limit plate (4) and the filter plates (5) spaced at the same distance from the first limit plate (3). A hydraulic telescopic cylinder (20) is installed between the first limit plate (3) and the adjacent connecting seat (19) and between each two adjacent connecting seats (19).

2. The novel box-type filter press device according to claim 1, characterized in that, Except for the filter plate (5) closest to the first limiting plate (3) and the filter plate (5) closest to the second limiting plate (4), each filter plate (5) has filter chamber grooves (9) on both sides. The filter plate (5) closest to the first limiting plate (3) has a filter chamber groove (9) on the side facing the second limiting plate (4), and the filter plate (5) closest to the second limiting plate (4) has a filter chamber groove (9) on the side facing the first limiting plate (3). Each filter chamber groove (9) is provided with a filter cloth (10). Except for the filter plate (5) closest to the second limiting plate (4), the middle of each filter plate (5) is penetrated. The filter plate (5) is provided with a sewage hole (12). Except for the filter plate (5) closest to the second limiting plate (4), each filter plate (5) has a clear water hole (13) through which it communicates with the corresponding filter chamber (9) at each of its four corners. The first limiting plate (3) is provided with a sewage inlet hole that communicates with the sewage hole (12). The first limiting plate (3) is connected to a sewage pipe (14) that communicates with the sewage inlet hole. The first limiting plate (3) is provided with four water outlet holes that communicate with the clear water hole (13) one by one. The first limiting plate (3) is connected to a clear water pipe (15) that communicates with each water outlet hole.

3. A novel box-type filter press device according to claim 2, characterized in that, Each filter chamber (9) has several support protrusions (11) at the bottom for supporting the corresponding filter cloth (10), and there are gaps between the support protrusions (11).

4. A novel box-type filter press device according to claim 1, characterized in that, Each slide rail (2) is provided with a support slide shaft (7) arranged along its length direction, and each slider (6) has a C-shaped slot (8) at its lower end that is slidably connected to the corresponding support slide shaft (7).

5. A novel box-type filter press device according to claim 1, characterized in that, The frame (1) is horizontally positioned below the filter plate (5) and a filter cake conveyor (21) is arranged along its length.

6. A novel box-type filter press device according to claim 5, characterized in that, The filter cake conveyor (21) is provided with inclined baffles (22) that are inclined upward and outward on both sides.

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