Filtering device of high-pressure diaphragm filter press

Abstract

The utility model relates to a filtering device of a high pressure diaphragm filter press, which comprises a mounting rack and a fixed plate fixedly connected in the mounting rack, one side of the mounting rack is provided with a compaction filtering structure extending into the mounting rack, and the compaction filtering structure comprises a hydraulic cylinder which is fixedly connected with the mounting rack and extends into the mounting rack; a pressing plate is fixedly connected to the output end of the hydraulic cylinder, and a thrust plate is fixedly connected to the side, away from the pressing plate, of the interior of the mounting frame. According to the filtering device of the high-pressure diaphragm filter press, the fixing plates and the fixing bolts are arranged, so that the filtering plates are conveniently connected with the pressing plate and the thrust plate respectively, meanwhile, a worker only needs to disassemble the fixing bolts, and then the hinging rods and the connecting rods are arranged, so that the multiple filtering plates are conveniently connected; on one hand, the multiple filter plates can be driven to be attached to each other at the same time, and on the other hand, the multiple filter plates can be pulled open at the same time, and discharging treatment of materials is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm filter presses, in particular to a high-pressure diaphragm filter press filtering device. Background Art

[0002] Diaphragm filter press, also known as diaphragm filter press, is a filter press with an elastic membrane installed between the filter plate and the filter cloth. During use, when the feeding is completed, high-pressure fluid or gas medium can be injected into the diaphragm plate, then the entire diaphragm will bulge to compress the filter cake, thereby achieving further dehydration of the filter cake, which is usually referred to as squeeze filtration.

[0003] After searching, Chinese patent CN218011265U discloses a filtering device of a membrane filter press, including a filter press base, a feed pipe, a hydraulic cylinder, a clamping plate, a thrust plate, a filter plate, a linkage assembly, a plugging plate, a baffle, a plugging plug, a sponge core column, an air pump, a hard air pipe and a soft air pipe, wherein the filter plates are provided in multiple groups and are all slidably arranged on the filter press base, the thrust plate is fixedly arranged at one end of the filter press base, the thrust plate is fixedly connected to a group of filter plates, the hydraulic cylinder is fixedly arranged at the other end of the filter press base, the clamping plate is fixedly arranged at one end of the hydraulic cylinder and slidably arranged on the filter press base, the clamping plate is fixedly connected to another group of filter plates, and the feed pipe is slidably penetrated between the clamping plate and the multiple groups of filter plates. The utility model relates to the technical field of filter presses, and specifically provides a filtering device of a membrane filter press that can be uniformly squeezed and stretched and is convenient for solid-liquid separation.

[0004] However, during use of the utility model, since there is no detachable structure between the pressing plate and the filter plate, the filter plate cannot be removed from the pressing plate, which makes it inconvenient for workers to add or remove filter plates and cannot meet production needs. Therefore, a high-pressure diaphragm filter press filtering device is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-pressure diaphragm filter press filtering device, which has the advantage of easy disassembly of the filter plate, and solves the problem that the filter plate cannot be disassembled from the pressing plate due to the lack of a detachable structure between the pressing plate and the filter plate, making it inconvenient for staff to add or remove the filter plate and failing to meet production needs.

[0006] To achieve the above object, the utility model provides the following technical solution: a high-pressure diaphragm filter press filtering device, comprising a mounting frame and a fixing plate fixedly connected to the inside of the mounting frame, wherein one side of the mounting frame is provided with a compacting filtering structure extending to the inside thereof;

[0007] The compression filtering structure includes a hydraulic cylinder fixedly connected to a mounting frame and extending into the interior thereof, a compression plate fixedly connected to the output end of the hydraulic cylinder, a thrust plate fixedly connected to the side of the mounting frame away from the compression plate, a group of filter plates are arranged between the compression plate and the thrust plate, a connecting plate is arranged on the top of the filter plate close to the compression plate, and a fixing bolt extending into the interior of the filter plate is threadedly connected to the top of the connecting plate.

[0008] Furthermore, the front side of the filter plate is rotatably connected to two hinged rods, a connecting rod is provided on the top of the filter plate, and one end of the two hinged rods away from the filter plate is rotatably connected to the connecting rod.

[0009] Furthermore, a limiting block extending into the interior of the fixed plate is fixedly connected to the front side of the filter plate, and a limiting groove matched with the limiting block is provided inside the fixed plate.

[0010] Furthermore, filter cloths are fixedly connected to both left and right sides of the filter plate, a feed port communicating with the outside is opened inside the filter plate, and a feed pipe adapted to the feed port is fixedly connected to the side of the mounting frame away from the hydraulic cylinder.

[0011] Furthermore, a filter port is provided inside the filter plate and at the bottom of the filter cloth, and a drainage pipe matching the filter port is fixedly connected to a side of the mounting frame away from the hydraulic cylinder.

[0012] Furthermore, a steel pipe extending to the outside of the mounting frame is fixedly connected to the inside of the mounting frame, a connecting pipe is fixedly connected between the front surface of the filter plate and the steel pipe, and an intake valve and an exhaust valve are fixedly connected to the outside of the steel pipe.

[0013] Furthermore, a collecting box is provided at the bottom of the mounting frame, and a feeding port communicating with the collecting box is provided inside the mounting frame.

[0014] Furthermore, the bottom of the mounting frame is fixedly connected with support columns, the number of the support columns is four, and the four support columns are evenly distributed at the bottom of the mounting frame.

[0015] Compared with the prior art, the utility model provides a high-pressure diaphragm filter press filtering device, which has the following beneficial effects:

[0016] The filtering device of the high-pressure diaphragm filter press is convenient for connecting the filter plate to the clamping plate and the thrust plate respectively by arranging a fixing plate and fixing bolts. At the same time, the staff only needs to disassemble the fixing bolts, and then arrange a hinge rod and a connecting rod to facilitate connecting multiple filter plates. When the hydraulic cylinder is started, on the one hand, it can simultaneously drive multiple filter plates to fit each other, and on the other hand, it can simultaneously pull multiple filter plates apart, which is convenient for unloading materials. It solves the problem that the filter plate cannot be disassembled from the clamping plate due to the lack of a detachable structure between the clamping plate and the filter plate, which makes it inconvenient for the staff to add or reduce the filter plate and cannot meet the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing plate of the utility model;

[0019] Figure 3 It is a structural side view of the filter plate of the utility model.

[0020] In the figure: 1 mounting frame, 2 fixing plate, 3 hydraulic cylinder, 4 clamping plate, 5 thrust plate, 6 filter plate, 7 hinged rod, 8 connecting rod, 9 connecting plate, 10 fixing bolt, 11 limiting block, 12 filter cloth, 13 feed port, 14 feed pipe, 15 filter port, 16 drain pipe, 17 steel pipe, 18 connecting pipe, 19 intake valve, 20 exhaust valve, 21 discharge port, 22 collection box, 23 support column. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-3A high-pressure diaphragm filter press filtering device in this embodiment includes a mounting frame 1 and a fixing plate 2 fixedly connected to the inside of the mounting frame 1, a compression filtering structure extending into the inside of the mounting frame 1 is provided on one side of the mounting frame 1, the compression filtering structure includes a hydraulic cylinder 3 fixedly connected to the mounting frame 1 and extending into the inside of the mounting frame 1, a compression plate 4 is fixedly connected to the output end of the hydraulic cylinder 3, a thrust plate 5 is fixedly connected to the side of the mounting frame 1 away from the compression plate 4, a group of filter plates 6 are provided between the compression plate 4 and the thrust plate 5, a connecting plate 9 is provided on the top of the filter plate 6 close to the compression plate 4, and a fixing bolt 10 extending into the inside of the filter plate 6 is threadedly connected to the top of the connecting plate 9.

[0024] Among them, the front side of the filter plate 6 is rotatably connected to two hinged rods 7, a connecting rod 8 is arranged on the top of the filter plate 6, and the ends of the two hinged rods 7 away from the filter plate 6 are rotatably connected to the connecting rod 8, and the front side of the filter plate 6 is fixedly connected to a limit block 11 extending to the interior of the fixed plate 2, and a limit groove adapted to the limit block 11 is opened inside the fixed plate 2.

[0025] It should be noted that there are two fixing plates 2 , and the two fixing plates 2 are symmetrically distributed on the front and back sides of the filter plate 6 .

[0026] In this embodiment, filter cloths 12 are fixedly connected to the left and right sides of the filter plate 6, a feed port 13 communicating with the outside is opened inside the filter plate 6, a feed pipe 14 compatible with the feed port 13 is fixedly connected to the side of the mounting frame 1 away from the hydraulic cylinder 3, a filter port 15 is opened inside the filter plate 6 and at the bottom of the filter cloth 12, and a drain pipe 16 compatible with the filter port 15 is fixedly connected to the side of the mounting frame 1 away from the hydraulic cylinder 3.

[0027] When all the filter plates 6 are fitted together, the feed port 13 and the filter port 15 will respectively form a channel for the material to flow through, and at the same time, a connecting port connected to the filter cloth 12 is opened on the inner wall of the filter port 15 .

[0028] In this embodiment, a collecting box 22 is disposed at the bottom of the mounting frame 1 , and a material discharge port 21 communicating with the collecting box 22 is provided inside the mounting frame 1 .

[0029] In this embodiment, a support column 23 is fixedly connected to the bottom of the mounting frame 1 . The number of the support columns 23 is four, and the four support columns 23 are evenly distributed at the bottom of the mounting frame 1 .

[0030] Embodiment 2:

[0031] See also Figure 1 On the basis of the first embodiment, it includes a steel pipe 17 fixedly connected to the inside of the mounting frame 1 and extending to the outside thereof, a connecting pipe 18 is fixedly connected between the front of the filter plate 6 and the steel pipe 17, and an intake valve 19 and an exhaust valve 20 are fixedly connected to the outside of the steel pipe 17.

[0032] In this embodiment, the connecting pipe 18 is a hose.

[0033] By adopting the above technical solution, the air inlet valve 19 is opened to inflate the interior of the filter plate 6 so that the filter cloth 12 expands, thereby facilitating the separation of the filter cloth 12 from the material attached to the filter cloth 12 .

[0034] The working principle of the above embodiment is:

[0035] First, the hydraulic cylinder 3 is started to squeeze the filter plate 4 so that the multiple filter plates 4 fit together, and then the material to be filtered is transported to the inside of the filter plate 6 through the feed pipe 14, and then the material to be collected will be blocked by the filter cloth 12. At this time, the filtered water will flow into the drain pipe 16 through the filter port 15 for discharge, and then the air inlet valve 19 is opened to inflate the inside of the filter plate 6 to expand the filter cloth 12, so as to facilitate the separation of the filter cloth 12 from the material attached to the filter cloth 12, and then the exhaust valve 20 is opened to discharge the gas, and finally the hydraulic cylinder 3 is started to drive the filter plate 6 to stretch. At this time, due to the action of the connecting rod 8 and the hinged rod 7, all the filter plates 6 will be pulled apart at the same time, and the material in the filter plate 6 will fall due to the action of gravity.

[0036] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure membrane filter press filtering device, comprising a mounting frame (1) and a fixing plate (2) fixedly connected to the inside of the mounting frame (1), characterized in that: One side of the mounting frame (1) is provided with a compression filtering structure extending into the interior thereof; The compression filtering structure comprises a hydraulic cylinder (3) fixedly connected to a mounting frame (1) and extending into the interior thereof, a compression plate (4) fixedly connected to the output end of the hydraulic cylinder (3), a thrust plate (5) fixedly connected to the side of the mounting frame (1) away from the compression plate (4), a group of filter plates (6) arranged between the compression plate (4) and the thrust plate (5), a connecting plate (9) arranged at the top of the filter plate (6) close to the compression plate (4), and a fixing bolt (10) extending into the interior of the filter plate (6) being threadedly connected to the top of the connecting plate (9).

2. A high pressure membrane filter press filtering device according to claim 1, characterized in that: The front side of the filter plate (6) is rotatably connected to two hinged rods (7), the top of the filter plate (6) is provided with a connecting rod (8), and the ends of the two hinged rods (7) away from the filter plate (6) are both rotatably connected to the connecting rod (8).

3. The high-pressure membrane filter press filtering device according to claim 1, characterized in that: A limiting block (11) extending into the interior of the fixing plate (2) is fixedly connected to the front side of the filter plate (6), and a limiting groove matching the limiting block (11) is provided inside the fixing plate (2).

4. The high-pressure membrane filter press filtering device according to claim 1, characterized in that: Filter cloths (12) are fixedly connected to the left and right sides of the filter plate (6), a feed port (13) communicating with the outside is provided inside the filter plate (6), and a feed pipe (14) adapted to the feed port (13) is fixedly connected to the side of the mounting frame (1) away from the hydraulic cylinder (3).

5. A high pressure membrane filter press filtering device according to claim 4, characterized in that: A filter port (15) is provided inside the filter plate (6) and at the bottom of the filter cloth (12), and a drainage pipe (16) adapted to the filter port (15) is fixedly connected to a side of the mounting frame (1) away from the hydraulic cylinder (3).

6. The high-pressure membrane filter press filtering device according to claim 1, characterized in that: The interior of the mounting frame (1) is fixedly connected to a steel pipe (17) extending to the outside thereof, a connecting pipe (18) is fixedly connected between the front surface of the filter plate (6) and the steel pipe (17), and the outside of the steel pipe (17) is respectively fixedly connected to an intake valve (19) and an exhaust valve (20).

7. The high-pressure membrane filter press filtering device according to claim 1, characterized in that: A collecting box (22) is provided at the bottom of the mounting frame (1), and a material discharge port (21) connected to the collecting box (22) is provided inside the mounting frame (1).

8. The high-pressure membrane filter press filtering device according to claim 1, characterized in that: The bottom of the mounting frame (1) is fixedly connected with a support column (23), the number of the support columns (23) is four, and the four support columns (23) are evenly distributed at the bottom of the mounting frame (1).

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