Vertical vacuum modular sludge filter press
By separating the vacuum chamber into independent upper and lower chambers and setting up independent drainage systems and cleaning mechanisms, the problem of sludge blocking the upper drainage holes in the vertical stacked filter cloth filter press is solved, which improves the filter press efficiency and simplifies the cleaning of the filter cloth, and achieves efficient and flexible sludge treatment.
Patent Information
- Application Number
- CN202422003138.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-19
AI Technical Summary
During the filtration process of the existing vertical stacked filter cloth filter press, the sludge is prone to block the drainage holes, affecting the filtering efficiency and effect, and the main filter cloth is difficult to clean and covers a large area.
The vacuum chamber is divided into two independent chambers at the upper and lower levels. The lower drain hole and the upper drain hole are connected to different chambers respectively, and are equipped with independent air compensation ports and vacuum drain pipes to ensure that the pumping and blowing and removal process does not interfere with each other and avoid blockage. At the same time, a winding and cleaning mechanism is set up at both ends of the main filter cloth to simplify the cleaning process.
It improves the working efficiency of the filter press, ensures the filter pressing effect, and simplifies the cleaning and replacement process of the main filter cloth, reducing the equipment footprint.
Smart Images
Figure CN223239969U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vertical sludge filter presses, in particular to a vertical vacuum modular sludge filter press. Background Art
[0002] Existing sludge dewatering equipment includes belt filter presses, centrifugal dewatering machines, horizontal diaphragm plate and frame dewatering machines, vertical laminated filter cloth filter presses, etc. Belt filter presses and centrifugal dewatering machines can generally reduce the moisture content of sludge to about 80%, while horizontal diaphragm plate and frame dewatering machines and vertical laminated filter cloth filter presses can reduce the moisture content of sludge to about 60%. However, the horizontal diaphragm plate and frame dewatering machine occupies a relatively large area, the diaphragm is easily damaged, and the filter cloth cleaning time is long (the machine needs to be stopped for cleaning), and the energy consumption is high. The vertical laminated filter cloth filter press occupies a small area, but it also has certain defects, such as (reference Figure 1 ): Two filter press modules 30 with the same structure are stacked up and down, and the sludge 60 after filtration is blown off after filtration. Then, the sludge 60 after filtration moves with the main filter cloth 5 into the mud unloading link. Since the main filter cloth 5 has gaps (similar to a filter belt), and the sludge 60 after filtration also contains moisture, a small amount of sludge may fall into the vacuum chamber 35 along the lower drainage hole 31.3 during the movement of the main filter cloth 5. An upper drainage hole 31.4 is also provided at the bottom of the vacuum chamber 35. The sludge falling into the vacuum chamber 35 will block the upper drainage hole 31.4, and the upper filter screen 37 and the upper filter cloth 38 provided at the bottom of the upper drainage hole 31.4 are difficult to disassemble and replace. Once the upper drainage hole 31.4 is blocked, the filtration efficiency of the filter press will be affected and the filtration effect cannot be guaranteed. Utility Model Content
[0003] The utility model aims to provide a vertical vacuum modular sludge filter press.
[0004] The innovation of the utility model is that the vacuum chamber is divided into two independent upper and lower chambers, water pumping and air stripping do not interfere with each other, and the lower drainage hole will not be blocked, thereby ensuring the filtration efficiency and filtration effect of the filter press.
[0005] In order to achieve the above-mentioned utility model purpose, the technical solution of the utility model is:
[0006] A vertical vacuum modular sludge filter press comprises a vertical frame, a main oil cylinder fixed on the top of the vertical frame, a filter press unit arranged in the vertical frame and a pressure plate arranged on the top of the filter press unit, the telescopic end of the main oil cylinder is connected to the top of the pressure plate, the filter press unit comprises a plurality of filter press modules stacked up and down with the same structure; the filter press module comprises a filter press piston, a filter press sleeve and a small oil cylinder arranged between the filter press piston and the filter press sleeve; the filter press piston comprises a pressure plate, the middle part of the lower surface of the pressure plate extends downward to form a piston column matching the shape of the inner cavity of the filter press sleeve, the main filter cloth is arranged at the bottom of the filter press sleeve, and the filter press sleeve is provided with a main filter cloth. A sludge filter press chamber is formed between the bottom of the piston column, the filter sleeve and the main filter cloth; the piston column is a hollow structure, and a vacuum chamber is formed inside. One end of the mud inlet pipe passes through the vacuum chamber and is connected to the sludge filter press chamber; a partition is arranged in the vacuum chamber to separate the vacuum chamber into an upper first chamber and a lower second chamber; lower drainage holes are evenly distributed on the top of the pressure plate, and the lower drainage holes are connected to the first chamber; upper drainage holes are evenly distributed on the bottom of the piston column, and the upper drainage holes are connected to the second chamber, and an upper filter screen and an upper filter cloth are arranged at the bottom of the upper drainage hole in sequence; an air compensation port and a vacuum drainage pipe are respectively arranged on the first chamber and the second chamber.
[0007] Furthermore, a lower filter is provided on the top of the lower drainage hole.
[0008] Furthermore, a winding and cleaning mechanism is provided at both ends of the main filter cloth, including a roller respectively wound and connected to the two ends of the main filter cloth and a cleaning tank provided between the main filter cloth and the roller. A cleaning nozzle is provided in the cleaning tank, and a cleaning brush is also provided between the top of the cleaning tank and the main filter cloth.
[0009] Furthermore, a guide and limiting mechanism is provided between two upper and lower adjacent filter press modules.
[0010] Furthermore, the guide and limiting mechanism is evenly arranged along the circumference of the two filter press modules, and includes guide columns and retaining bolts. The guide columns pass through the pressure plates in the two filter press modules respectively, and the retaining bolts are arranged at both ends of the guide columns.
[0011] Furthermore, the guide and limiting mechanism is evenly arranged along the circumference of the two filter press modules, and includes a connecting piece; a positioning hole and a guide groove are set on the connecting piece, a positioning rod is set at the edge of the pressure plate in the upper filter press module, and the positioning rod is fixed by a positioning bolt after being inserted into the positioning hole, and a guide rod is set at the edge of the pressure plate in the lower filter press module, and the guide rod is inserted into the guide groove and can move up and down along the guide groove, and a limiting bolt is also set at the end of the guide rod.
[0012] The beneficial effects of the utility model are:
[0013] 1. The present application sets a partition in the vacuum chamber to separate the vacuum chamber into an upper first chamber and a lower second chamber, and an air compensation port and a vacuum drainage pipe are set on both the first chamber and the second chamber; the lower drainage hole is connected to the first chamber, and the upper drainage hole is connected to the second chamber. After such a design, even if a small amount of sludge falls into the first chamber along the lower drainage hole, it will not block the upper drainage hole. The first chamber and the second chamber can independently complete the work of pumping and blowing off, which are independent of each other and do not interfere with each other, which can greatly improve the working efficiency of the filter press and ensure the filtration effect.
[0014] 2. This application is equipped with independent winding and cleaning mechanisms at both ends of each main filter cloth, which has a flexible structure and is simple to clean and replace the main filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the existing technology structure.
[0016] Figure 2 This is a schematic structural diagram of the utility model.
[0017] Figure 3 Schematic diagram of the filter press module structure.
[0018] Figure 4 Schematic diagram of the guide limit mechanism structure (guide column and locking bolt structure).
[0019] Figure 5 Schematic diagram of the guide and limit mechanism structure (connecting piece, positioning rod, and guide rod structure).
[0020] Figure 6 Schematic diagram of the connecting piece structure.
[0021] In the figure: 1 is the vertical frame, 2 is the main oil cylinder, 3 is the filter press unit, 4 is the pressure plate, 5 is the main filter cloth, 6 is the mud inlet pipe, 30 is the filter press module, 31 is the filter press piston, 31.1 is the pressure plate, 31.2 is the piston column, 31.3 is the lower drain hole, 31.4 is the upper drain hole, 32 is the filter press sleeve, 33 is the small oil cylinder, 34 is the sludge filter press chamber, 35 is the vacuum chamber, 35.1 is the first chamber, 35.2 is the first chamber, 35.3 is the air compensation port, 35.4 is the vacuum chamber. Empty drainage pipe, 36 is a partition, 37 is an upper filter screen, 38 is an upper filter cloth, 39 is a lower filter screen, 40 is a winding and cleaning mechanism, 41 is a roller, 42 is a cleaning tank, 43 is a cleaning nozzle, 44 is a cleaning brush, 50 is a guide and limiting mechanism, 51 is a guide column, 52 is a positioning bolt, 53 is a connecting piece, 53.1 is a positioning hole, 53.2 is a guide groove, 54 is a positioning rod, 55 is a positioning bolt, 56 is a guide rod, 57 is a limiting bolt, and 60 is the sludge after filtration. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.
[0023] A vertical vacuum modular sludge filter press, comprising a vertical frame 1, a main oil cylinder 2 fixed to the top of the vertical frame 1, a filter press unit 3 arranged in the vertical frame 1 and a pressure plate 4 arranged on the top of the filter press unit 3, the telescopic end of the main oil cylinder 2 is connected to the top of the pressure plate 4, the filter press unit 3 comprises a plurality of filter press modules 30 stacked up and down with the same structure; the filter press module 30 comprises a filter press piston 31, a filter press sleeve 32 and a small oil cylinder 33 arranged between the filter press piston 31 and the filter press sleeve 32; the filter press piston 31 comprises a pressure plate 31.1, the middle part of the lower surface of the pressure plate 31.1 extends downward to form a piston column 31.2 that matches the shape of the inner cavity of the filter press sleeve 32, the main filter cloth 5 is arranged at the bottom of the filter press sleeve 32, and a space between the bottom of the piston column 31.2 and the filter press sleeve 32 and the main filter cloth 5 is formed. The sludge filter press chamber 34 is formed; the piston column 31.2 is a hollow structure, and a vacuum chamber 35 is formed inside. One end of the mud inlet pipe 6 passes through the vacuum chamber 35 and communicates with the sludge filter press chamber 34; a partition 36 is provided in the vacuum chamber 35 to separate the vacuum chamber 35 into an upper first chamber 35.1 and a lower second chamber 35.2; lower drainage holes 31.3 are evenly distributed on the top of the pressure plate 31.1, and the lower drainage holes 31.3 are connected to the first chamber 35.1; upper drainage holes 31.4 are evenly distributed on the bottom of the piston column 31.2, and the upper drainage holes 31.4 are connected to the second chamber 35.2. An upper filter screen 37 and an upper filter cloth 38 are sequentially provided at the bottom of the upper drainage holes 31.4; an air compensation port 35.3 and a vacuum drainage pipe 35.4 are respectively provided on the first chamber 35.1 and the second chamber 35.2.
[0024] Furthermore, after the vacuum chamber 35 is divided into two independent chambers, the first chamber 35.1 and the second chamber 35.2, the lower drainage hole 31.3 is connected to the first chamber 35.1, and the upper drainage hole 31.4 is connected to the second chamber 35.2. After the sludge is filtered, when unloading the sludge, even if a small amount of sludge falls into the first chamber 35.1 along the lower drainage hole 31.3, it will not affect the upper drainage hole 31.4. The two chambers can be independently pumped and blown off without interfering with each other. The upper drainage hole 31.4 will not be blocked, which greatly improves the filtration efficiency of the filter press and ensures the filtration effect.
[0025] Furthermore, the jacking force of the small oil cylinder 33 can be adjusted dynamically, that is, it can be adjusted according to the pressure in the sludge filter press chamber 34, so as to avoid excessive pressure in the sludge filter press chamber 34, which may cause sludge bursting.
[0026] Furthermore, a lower filter screen 39 is provided on the top of the lower drainage hole 31.3.
[0027] (refer to Figure 3) Furthermore, a winding and cleaning mechanism 40 is provided at both ends of the main filter cloth 5, including a roller 41 respectively wound and connected to the two ends of the main filter cloth 5 and a cleaning tank 42 provided between the main filter cloth 5 and the roller 41, a cleaning nozzle 43 is provided in the cleaning tank 42, and a cleaning brush 44 is also provided between the top of the cleaning tank 42 and the main filter cloth 5.
[0028] (refer to Figure 3 ) Further, Figure 3 The direction indicated by the middle arrow is the mud unloading direction. The motor drives the left roller 41 to rotate counterclockwise, and the main filter cloth 5 moves to the left and is rolled up by the left roller 41. The sludge falls off automatically due to gravity; at the same time, the right roller 42 unwinds, and the main filter cloth 5 is rinsed with a cleaning nozzle 43 after unwinding. The rinsed main filter cloth 5 moves to the bottom of the filter sleeve 32 and enters the next round of filtration; when the right roller 41 can no longer unwind, the motor drives the right roller 41 to rotate clockwise, the right roller 41 rewinds, and the left roller 41 unwinds, and the cycle continues.
[0029] Furthermore, a guide and limiting mechanism 50 is provided between two upper and lower adjacent filter press modules 30 .
[0030] (refer to Figure 4 ) Furthermore, the guide and limiting mechanism 50 is evenly arranged along the circumference of the two filter press modules 30, and includes a guide column 51 and a retaining bolt 52. The guide column 51 passes through the pressure plates 31.1 in the two filter press modules 30 respectively, and the retaining bolt 52 is set at both ends of the guide column 51.
[0031] (refer to Figure 5 ) Furthermore, the guide and limiting mechanism 50 is evenly arranged along the circumference of the two filter press modules 30, and includes a connecting piece 53; a positioning hole 53.1 and a guide groove 53.2 are set on the connecting piece 53, and a positioning rod 54 is set at the edge of the pressure plate 31.1 in the upper filter press module 30, and the positioning rod 54 is fixed by a positioning bolt 55 after being inserted into the positioning hole 53.1, and a guide rod 56 is set at the edge of the pressure plate 31.1 in the lower filter press module 30, and the guide rod 56 is inserted into the guide groove 53.2 and can move up and down along the guide groove 53.2. A limiting bolt 57 is also set at the end of the guide rod 56.
[0032] The embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
Claims
1. A vertical vacuum modular sludge filter press, comprising a vertical frame (1), a main oil cylinder (2) fixed to the top of the vertical frame (1), a filter press unit (3) arranged in the vertical frame (1), and a pressure plate (4) arranged on the top of the filter press unit (3), wherein the telescopic end of the main oil cylinder (2) is connected to the top of the pressure plate (4), and the filter press unit (3) comprises a plurality of filter press modules (30) stacked up and down and having the same structure; the filter press module (30) comprises a filter press piston (31), a filter press sleeve (32), and a filter press sleeve (33). 2) and a small oil cylinder (33) arranged between a filter press piston (31) and a filter press sleeve (32); the filter press piston (31) includes a pressure plate (31.1), the middle portion of the lower surface of the pressure plate (31.1) extends downward to form a piston column (31.2) that matches the shape of the inner cavity of the filter press sleeve (32), a main filter cloth (5) is arranged at the bottom of the filter press sleeve (32), and a sludge filter press cavity (34) is formed between the bottom of the piston column (31.2) and the filter press sleeve (32) and the main filter cloth (5); characterized in that: The piston rod (31.2) is a hollow structure, and a vacuum chamber (35) is formed inside. One end of the mud inlet pipe (6) passes through the vacuum chamber (35) and is connected to the sludge filter press chamber (34). A partition (36) is provided in the vacuum chamber (35) to separate the vacuum chamber (35) into an upper first chamber (35.1) and a lower second chamber (35.2). The top of the pressure plate (31.1) is evenly distributed with lower drainage holes (31.3). The lower drainage holes (31.3) ) is communicated with the first chamber (35.1); upper drainage holes (31.4) are evenly distributed on the bottom of the piston column (31.2), and the upper drainage holes (31.4) are communicated with the second chamber (35.2); an upper filter screen (37) and an upper filter cloth (38) are sequentially arranged at the bottom of the upper drainage holes (31.4); an air compensation port (35.3) and a vacuum drainage pipe (35.4) are respectively arranged on the first chamber (35.1) and the second chamber (35.2).
2. The vertical vacuum modular sludge filter press according to claim 1, characterized in that: A lower filter screen (39) is provided on the top of the lower drainage hole (31.3).
3. The vertical vacuum modular sludge filter press according to claim 1, characterized in that: A winding and cleaning mechanism (40) is further provided at both ends of the main filter cloth (5), comprising a roller (41) respectively wound and connected to both ends of the main filter cloth (5) and a cleaning tank (42) provided between the main filter cloth (5) and the roller (41), a cleaning nozzle (43) being provided in the cleaning tank (42), and a cleaning brush (44) being provided between the top of the cleaning tank (42) and the main filter cloth (5).
4. The vertical vacuum modular sludge filter press according to claim 1, characterized in that: A guide and limiting mechanism (50) is also provided between two upper and lower adjacent filter press modules (30).
5. The vertical vacuum modular sludge filter press according to claim 4, characterized in that: The guide and limiting mechanism (50) is evenly arranged along the circumference of the two filter press modules (30), and comprises guide columns (51) and retaining bolts (52). The guide columns (51) respectively pass through the pressure plates (31.1) in the two filter press modules (30), and the retaining bolts (52) are arranged at both ends of the guide columns (51).
6. The vertical vacuum modular sludge filter press according to claim 4, characterized in that: The guide and limiting mechanism (50) is evenly arranged along the circumference of the two filter press modules (30), and includes a connecting piece (53); a positioning hole (53.1) and a guide groove (53.2) are provided on the connecting piece (53); a positioning rod (54) is provided on the edge of the pressure plate (31.1) in the upper filter press module (30); the positioning rod (54) is inserted into the positioning hole (53.1) and fixed by a positioning bolt (55); a guide rod (56) is provided on the edge of the pressure plate (31.1) in the lower filter press module (30); the guide rod (56) is inserted into the guide groove (53.2) and can move up and down along the guide groove (53.2); and a limiting bolt (57) is also provided at the end of the guide rod (56).