Filter press convenient for mud unloading and cleaning

Abstract

According to the technical scheme, the filter press is characterized by comprising two cross beams, the length directions of the two cross beams are horizontal, and the two cross beams are arranged side by side; a filter plate; the thrust seat is arranged at one end of the cross beam; the pressing plate slides between the two cross beams so as to press the plurality of filter plates on the thrust seat; the number of the plate opening mechanisms is two, and the two plate opening mechanisms are arranged on the sides, away from each other, of the two cross beams correspondingly. The plate opening mechanism comprises a plate opening chain; and a plate opener; through the arrangement of the plate opener, each filter plate can be independently driven, so that a single plate opening or a group plate opening can be selected according to actual conditions, the plate opening distance is reduced, the plate opening time is shortened, and the sludge discharging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-liquid separation, and more particularly to a filter press which is convenient for mud unloading and cleaning. Background Art

[0002] In the field of solid-liquid separation, filter presses, as core equipment for achieving efficient dehydration of materials, are widely used in chemical, environmental protection, metallurgy, food and other industries.

[0003] When existing filter presses are in use, many of them adopt the method of opening the plates to unload the mud. The common opening and unloading methods of traditional filter presses are divided into full opening and plate opening one by one. The full opening method requires all filter plates to be opened to the maximum gap at one time, and then the mud is unloaded by vibration and beating. However, the total opening stroke increases linearly with the increase in the number of filter plates, resulting in a significant extension of the equipment length and mud unloading cycle; although the plate opening mode can reduce the length of the equipment, the plate opening mode requires the "opening plate, unloading cakes, and closing plates" cycle to be completed one by one. For large filter presses with more than 50 filter plates, the mud unloading time in a single cycle can be up to several hours, which seriously affects production efficiency. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a filter press that is easy to unload and clean. Through the setting of the plate opener, each filter plate can be driven individually, so that it is possible to choose to open a single plate or a group of plates according to actual conditions, which not only reduces the opening distance but also shortens the opening time, thereby improving the efficiency of mud unloading.

[0005] To achieve the above object, the present invention provides the following technical solution: a filter press that is convenient for mud unloading and cleaning, comprising two crossbeams, the length directions of the two crossbeams being horizontal and arranged side by side;

[0006] Filter plates, wherein a plurality of filter plates are provided and arranged between the two cross beams, and sliders are provided on both sides of the top of the filter plates and slide on the two cross beams along the length direction of the cross beams respectively;

[0007] a thrust seat, the thrust seat being arranged at one end of the crossbeam;

[0008] a pressing plate, the pressing plate sliding between the two cross beams to press the plurality of filter plates onto the thrust seat;

[0009] and a plate opening mechanism, wherein two plate opening mechanisms are provided, and the two plate opening mechanisms are respectively provided on one side of the two beams away from each other;

[0010] The plate opening mechanism includes a plate opening chain, which is connected to the crossbeam through two sprockets. The sprockets are rotatably connected to the crossbeam and are respectively located at both ends of the crossbeam. The plate opening chain is arranged in a closed loop around the two sprockets, and the transmission direction of the top of the plate opening chain is horizontal;

[0011] And a plate opener, which is arranged on the outside of the plate opening chain surrounding the sprocket and arranged around the plate opening chain. There are multiple plate openers, each of which corresponds to a slider on the top of the beam. The plate opener controls whether to push the corresponding slider to move together while following the chain through opening and closing.

[0012] The present invention is further configured as follows: the panel opening device includes a panel opening frame, and the panel opening frame is connected to the panel opening chain through a bottom plate;

[0013] And a rotating frame, one end of which is rotatably connected to the open plate frame, and the other end of which is rotated on the open plate frame so that the height of the other end of the rotating frame is higher or lower than the height of the bottom of the slider, thereby being able to switch between pushing and not pushing the slider.

[0014] The present invention is further configured as follows: the panel opener also includes a panel opening member, and the panel opening member is configured as an electric cylinder, a pneumatic cylinder or an oil cylinder to drive the rotation of the rotating frame on the panel opening frame.

[0015] The present invention is further configured such that: the other end of the rotating frame is rotatably connected to a roller, and the rotating frame realizes switching between contact and separation between the roller and the slider by rotating.

[0016] The present invention is further configured as follows: an upper bracket and a lower bracket are respectively provided on the top and bottom of the filter plate;

[0017] Two filter cloths are arranged on both sides of the filter plate, and an upper winding assembly connected to the upper bracket and a lower winding assembly connected to the lower bracket are respectively arranged on the top and bottom of the two filter cloths.

[0018] The present invention is further configured as follows: the upper winding assembly includes an upper winding shaft and a tensioning shaft, and the top end of the filter cloth is wound around the top of the tensioning shaft and then wound around the upper winding shaft.

[0019] The present invention is further configured as follows: the upper reel is rotatably connected to the upper bracket;

[0020] The upper bracket is fixedly connected to a pressure sensor, a bottom end of the pressure sensor is fixedly connected to a tensioning device, and the tensioning shaft is rotatably connected to the bottom end of the tensioning device;

[0021] The tensioning device includes a fixing portion connected to the pressure sensor;

[0022] and an adjusting portion, which is arranged at the bottom of the fixing portion and can move up and down on the fixing portion and can be fixed on the fixing portion, and the tensioning shaft is rotatably connected to one end of the bottom of the adjusting portion.

[0023] The present invention is further configured as follows: the lower winding assembly includes a lower reel and a mud discharge roller, and the bottom end of the filter cloth is wound around the bottom of the mud discharge roller and then wound upward on the lower reel.

[0024] The present invention is further configured to include: a cleaning mechanism, the cleaning mechanism being arranged below the filter plate and located at the bottom of the lower winding assembly;

[0025] The cleaning mechanism includes two cleaning components respectively arranged corresponding to the two filter cloths;

[0026] The cleaning assembly includes a scraper, the top end of the scraper contacts the filter cloth at the bottom of the mud discharge roller and the bottom end of the scraper is inclined in a direction away from the other cleaning assembly;

[0027] A cleaning roller is provided between the scraper and the lower reel, the axis of the cleaning roller is parallel to the lower reel and a plurality of bristles in contact with the filter cloth are fixedly connected to the outside of the cleaning roller;

[0028] And a spray pipe, which is arranged between the cleaning roller and the lower reel. Two groups of nozzles are provided on the spray pipe, one group is used to spray water onto the filter cloth between the cleaning roller and the lower reel, and the other group is used to spray water onto the bristles of the cleaning roller away from the filter cloth.

[0029] The present invention is further configured as follows: the cleaning mechanism further comprises a lifting frame, the lifting frame being capable of sliding up and down on the lower bracket, and the scraper, the cleaning roller and the spray pipe being all arranged on the lifting frame;

[0030] The end of the scraper away from the filter cloth is fixedly connected to a rotating plate perpendicular to the scraper. When the scraper contacts the filter cloth, the rotating plate is located on the side of the scraper close to the other cleaning assembly, and the side of the rotating plate away from the scraper is rotatably connected to the lifting frame. The rotation of the rotating plate can rotate the scrapers of the two cleaning assemblies to a side where the two rotating plates are close to each other. At this time, the two scrapers are located below the side where the two rotating plates are connected to the scraper, and the bottom ends of the two scrapers, that is, the ends that contact the filter cloth, are inclined in a direction close to each other.

[0031] The spray pipe is rotatably connected to the lifting frame, and the axis of the spray pipe is parallel to the lower scroll. The spray pipe rotates around its own axis on the lifting frame. The two spray pipes can spray and clean the two scrapers that rotate to the side where the two rotating plates are close to each other through rotation.

[0032] In summary, the present invention has the following beneficial effects compared with the prior art: through the setting of the plate opener, each filter plate can be driven individually, so that it is possible to choose to open a single plate or a group of plates according to actual conditions, which not only reduces the opening distance but also shortens the opening time, thereby improving the efficiency of mud unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0034] Figure 2 This is a schematic diagram of an upper winding assembly according to an embodiment;

[0035] Figure 3 A schematic diagram of a plate opener according to an embodiment;

[0036] Figure 4 Schematic diagram of the lower winding assembly of the embodiment.

[0037] In the figure: 1. Crossbeam; 11. Thrust seat; 12. Pressing plate; 2. Filter plate; 3. Plate opening mechanism; 31. Plate opening chain; 32. Sprocket; 33. Plate opener; 331. Plate opening frame; 332. Rotating frame; 333. Roller; 4. Upper winding assembly; 41. Upper reel; 42. Tensioning shaft; 43. Pressure sensor; 44. Fixing part; 45. Adjusting part; 5. Lower winding assembly; 51. Lower reel; 52. Mud unloading roller; 6. Cleaning mechanism; 61. Scraper; 62. Rotating plate; 63. Cleaning roller; 64. Spray pipe; 65. Spray head. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0039] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0040] Example: A filter press that is easy to unload and clean, see attached Figure 1 -Attached Figure 4, including a crossbeam 1, a filter plate 2, a thrust seat 11, a pressure plate 12 and an opening mechanism 3, wherein two crossbeams 1 are provided, and the length direction of the two crossbeams 1 is horizontal and arranged side by side; multiple filter plates 2 are provided and arranged between the two crossbeams 1, and sliders are provided on both sides of the top of the filter plate 2 to slide along the length direction of the crossbeam 1 on the two crossbeams 1; the thrust seat 11 is provided at one end of the crossbeam 1; the pressure plate 12 slides between the two crossbeams 1 to press the multiple filter plates 2 against the thrust seat 11; there are two opening mechanisms 3, and the two opening mechanisms 3 are respectively provided on the side of the two crossbeams 1 away from each other; the opening mechanism 3 includes an opening The plate chain 31 and the plate opener 33, the plate opening chain 31 is connected to the beam 1 through two sprockets 32, the sprockets 32 are rotatably connected to the beam 1 and are respectively located at both ends of the beam 1, the plate opening chain 31 is arranged in a closed loop around the two sprockets 32 and the transmission direction of the top of the plate opening chain 31 is horizontal; the plate opener 33 is arranged on the outside of the plate opening chain 31 around the sprocket 32 ​​and is arranged around the plate opening chain 31, and there are multiple plate openers 33, each plate opener 33 corresponds to a slider at the top of the beam 1, and the plate opener 33 controls whether to push the corresponding slider to move together in the process of following the chain movement by opening and closing.

[0041] By setting the plate opener 33, each filter plate 2 can be driven individually, so that it is possible to choose to open the plate individually or in groups according to actual conditions, which not only reduces the opening distance but also shortens the opening time, thereby improving the efficiency of mud unloading.

[0042] Specifically, the plate opener 33 includes a plate opening frame 331 and a rotating frame 332, and the plate opening frame 331 is connected to the plate opening chain 31 through a base plate; one end of the rotating frame 332 is rotatably connected to the plate opening frame 331, and the other end of the rotating frame 332 is rotated on the plate opening frame 331 so that the height of the other end of the rotating frame 332 is higher or lower than the height of the bottom of the slider, thereby being able to switch between pushing and not pushing the slider.

[0043] Specifically, the plate opener 33 further includes a plate opening member, which is configured as an electric cylinder, a pneumatic cylinder or an oil cylinder to drive the rotating frame 332 to rotate on the plate opening frame 331 .

[0044] Specifically, the other end of the rotating frame 332 is rotatably connected to the roller 333 , and the rotating frame 332 is rotated to switch the contact and separation between the roller 333 and the slider.

[0045] Specifically, an upper bracket and a lower bracket are respectively provided on the top and bottom of the filter plate 2; two filter cloths are provided on both sides of the filter plate 2, and an upper winding assembly 4 connected to the upper bracket and a lower winding assembly 5 connected to the lower bracket are respectively provided on the top and bottom of the two filter cloths.

[0046] Specifically, the upper winding assembly 4 includes an upper winding shaft 41 and a tensioning shaft 42 . The top end of the filter cloth is wound around the top of the tensioning shaft 42 and then wound around the upper winding shaft 41 .

[0047] Specifically, the upper reel 41 is rotatably connected to the upper bracket; a pressure sensor 43 is fixedly connected to the upper bracket, and a tensioning device is fixedly connected to the bottom end of the pressure sensor 43, and the tensioning shaft 42 is rotatably connected to the bottom end of the tensioning device; the tensioning device includes a fixing portion 44 and an adjusting portion 45, and the fixing portion 44 is connected to the pressure sensor 43; the adjusting portion 45 is arranged at the bottom of the fixing portion 44 and can move up and down on the fixing portion 44 and can be fixed on the fixing portion 44, and the tensioning shaft 42 is rotatably connected to the bottom end of the adjusting portion 45.

[0048] By setting the pressure sensor 43, the sticking condition of the filter cloth can be fed back online in real time, and the mud unloading speed can be dynamically adjusted online in real time.

[0049] Specifically, the lower winding assembly 5 includes a lower reel 51 and a mud discharge roller 52 . One end of the bottom of the filter cloth is wound around the bottom of the mud discharge roller 52 and then wound upward on the lower reel 51 .

[0050] Specifically, this embodiment also includes a cleaning mechanism 6, which is arranged below the filter plate 2 and at the bottom of the lower winding assembly 5; the cleaning mechanism 6 includes two cleaning assemblies respectively arranged corresponding to the two filter cloths; the cleaning assembly includes a scraper 61, a cleaning roller 63 and a spray pipe 64, the top end of the scraper 61 contacts the filter cloth at the bottom of the mud unloading roller 52 and the bottom end of the scraper 61 is inclined in the direction away from the other cleaning assembly; the cleaning roller is arranged between the scraper 61 and the lower reel 51, the axis of the cleaning roller is parallel to the lower reel 51 and a number of bristles in contact with the filter cloth are fixedly connected to the outside of the cleaning roller; the spray pipe 64 is arranged between the cleaning roller 63 and the lower reel 51, and two groups of nozzles 65 are provided on the spray pipe 64, one group of which is used to spray water onto the filter cloth between the cleaning roller 63 and the lower reel 51, and the other group is used to spray water onto the bristles of the cleaning roller 63 away from the filter cloth.

[0051] By setting up the cleaning mechanism 6, the filter cloths on both sides of each filter plate 2 can be cleaned separately, so that the filter plates 2 can be grouped during use. After each filtration and mud unloading, the filter cloths on one or several groups of filter plates 2 are cleaned in a planned manner, which not only ensures the timely cleaning of the filter cloths, but also improves the overall work efficiency.

[0052] Specifically, the cleaning mechanism 6 also includes a lifting frame, which can slide up and down on the lower bracket, and the scraper 61, the cleaning roller 63 and the spray pipe 64 are all arranged on the lifting frame; the end of the scraper 61 away from the filter cloth is fixedly connected to a rotating plate 62 perpendicular to the scraper 61. When the scraper 61 contacts the filter cloth, the rotating plate 62 is located on the side of the scraper 61 close to the other cleaning component, and the side of the rotating plate 62 away from the scraper 61 is rotatably connected to the lifting frame, and the scrapers 61 of the two cleaning components can be moved by rotating the rotating plate 62. Rotate to the side where the two rotating plates 62 are close to each other. At this time, the two scrapers 61 are located below the side where the two rotating plates 62 are connected to the scraper 61, and the bottom ends of the two scrapers 61, that is, the ends that contact the filter cloth, are tilted in the direction of approaching each other; the spray pipe 64 is rotatably connected to the lifting frame, and the axis of the spray pipe 64 is parallel to the lower scroll 51. The spray pipe 64 rotates around its own axis on the lifting frame. The two spray pipes 64 can spray and clean the two scrapers 61 that are rotated to the side where the two rotating plates 62 are close to each other by rotating.

[0053] The rotation of the scraper 61 and the spray pipe 64 can ensure that the scraper 61 is clean after the scraper 61 scrapes away the mud on the filter cloth, and then the scraper 61 is rinsed by spraying, thereby ensuring the cleanliness of the scraper 61.

[0054] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A filter press that is easy to unload and clean, characterized by: It comprises a crossbeam (1), wherein two crossbeams (1) are provided, and the length directions of the two crossbeams (1) are horizontal and arranged side by side; A filter plate (2), wherein a plurality of filter plates (2) are provided and arranged between the two cross beams (1), and sliders are provided on both sides of the top of the filter plate (2) and slide on the two cross beams (1) along the length direction of the cross beam (1); A thrust seat (11), wherein the thrust seat (11) is arranged at one end of the crossbeam (1); A pressing plate (12) slides between the two cross beams (1) to press the plurality of filter plates (2) onto the thrust seat (11); and a plate opening mechanism (3), wherein two plate opening mechanisms (3) are provided, and the two plate opening mechanisms (3) are respectively provided on the sides of the two beams (1) that are away from each other; The plate opening mechanism (3) includes a plate opening chain (31), the plate opening chain (31) is connected to the crossbeam (1) through two sprockets (32), the sprockets (32) are rotatably connected to the crossbeam (1) and are respectively located at both ends of the crossbeam (1), the plate opening chain (31) is arranged in a closed loop around the two sprockets (32), and the transmission direction of the top of the plate opening chain (31) is horizontal; and a plate opener (33), wherein the plate opener (33) is arranged on the outside of the plate opening chain (31) surrounding the sprocket (32) and is arranged around the plate opening chain (31), and a plurality of plate openers (33) are provided, each plate opener (33) corresponds to a slider on the top of the crossbeam (1), and the plate opener (33) controls whether to push the corresponding slider to move together in the process of following the chain movement by opening and closing.

2. A filter press convenient for mud unloading and cleaning according to claim 1, characterized in that: The plate opener (33) includes a plate opening frame (331), and the plate opening frame (331) is connected to the plate opening chain (31) through a bottom plate; and a rotating frame (332), one end of which is rotatably connected to the open plate frame (331), and the other end of which is rotated on the open plate frame (331) so that the height of the other end of the rotating frame (332) is higher or lower than the height of the bottom of the slider, thereby being able to switch between pushing and not pushing the slider.

3. A filter press convenient for mud unloading and cleaning according to claim 2, characterized in that: The plate opener (33) further comprises a plate opening member, which is configured as an electric cylinder, a pneumatic cylinder or an oil cylinder to drive the rotating frame (332) to rotate on the plate opening frame (331).

4. A filter press convenient for mud unloading and cleaning according to claim 3, characterized in that: The other end of the rotating frame (332) is rotatably connected to a roller (333), and the rotating frame (332) realizes switching between contact and separation between the roller (333) and the slider by rotating.

5. The filter press convenient for mud unloading and cleaning according to claim 1, characterized in that: The top and bottom of the filter plate (2) are respectively provided with an upper bracket and a lower bracket; Two filter cloths are provided on both sides of the filter plate (2), and an upper winding assembly (4) connected to an upper bracket and a lower winding assembly (5) connected to a lower bracket are provided on the top and bottom of the two filter cloths, respectively.

6. The filter press convenient for mud unloading and cleaning according to claim 5, characterized in that: The upper winding assembly (4) comprises an upper winding shaft (41) and a tensioning shaft (42), and the top end of the filter cloth is wound around the top of the tensioning shaft (42) and then wound around the upper winding shaft (41).

7. The filter press convenient for mud unloading and cleaning according to claim 6, characterized in that: The upper reel (41) is rotatably connected to the upper bracket; A pressure sensor (43) is fixedly connected to the upper bracket, a bottom end of the pressure sensor (43) is fixedly connected to a tensioning device, and the tensioning shaft (42) is rotatably connected to the bottom end of the tensioning device; The tensioning device includes a fixing portion (44), and the fixing portion (44) is connected to the pressure sensor (43); and an adjusting portion (45), wherein the adjusting portion (45) is arranged at the bottom of the fixing portion (44) and can move up and down on the fixing portion (44) and can be fixed on the fixing portion (44), and the tensioning shaft (42) is rotatably connected to one end of the bottom of the adjusting portion (45).

8. The filter press convenient for mud unloading and cleaning according to claim 7, characterized in that: The lower winding assembly (5) comprises a lower reel (51) and a mud discharge roller (52), and one end of the bottom of the filter cloth is wound around the bottom of the mud discharge roller (52) and then wound upward on the lower reel (51).

9. The filter press convenient for mud unloading and cleaning according to claim 8, characterized in that: It also includes a cleaning mechanism (6), which is arranged below the filter plate (2) and located at the bottom of the lower winding assembly (5); The cleaning mechanism (6) comprises two cleaning components respectively arranged corresponding to the two filter cloths; The cleaning assembly includes a scraper (61), a top end of the scraper (61) contacts the filter cloth at the bottom of the mud discharge roller (52), and a bottom end of the scraper (61) is tilted in a direction away from another cleaning assembly; A cleaning roller (63) is provided between the scraper (61) and the lower reel (51), the axis of the cleaning roller is parallel to the lower reel (51), and a plurality of bristles in contact with the filter cloth are fixedly connected to the outside of the cleaning roller; and a spray pipe (64), wherein the spray pipe (64) is arranged between the cleaning roller (63) and the lower reel (51), and two groups of nozzles (65) are arranged on the spray pipe (64), one group of which is used to spray water onto the filter cloth between the cleaning roller (63) and the lower reel (51), and the other group of which is used to spray water onto the bristles of the cleaning roller (63) away from the filter cloth.

10. The filter press convenient for mud unloading and cleaning according to claim 9, characterized in that: The cleaning mechanism (6) further comprises a lifting frame, which is capable of sliding up and down on the lower bracket, and the scraper (61), the cleaning roller (63) and the spray pipe (64) are all arranged on the lifting frame; The end of the scraper (61) away from the filter cloth is fixedly connected to a rotating plate (62) perpendicular to the scraper (61); when the scraper (61) contacts the filter cloth, the rotating plate (62) is located on the side of the scraper (61) close to the other cleaning component; the side of the rotating plate (62) away from the scraper (61) is rotatably connected to the lifting frame; the rotation of the rotating plate (62) can rotate the scrapers (61) of the two cleaning components to the side where the two rotating plates (62) are close to each other; at this time, the two scrapers (61) are located below the side where the two rotating plates (62) are connected to the scraper (61), and the bottom ends of the two scrapers (61), that is, the ends in contact with the filter cloth, are inclined in a direction of approaching each other; The spray pipe (64) is rotatably connected to the lifting frame, and the axis of the spray pipe (64) is parallel to the lower reel (51). The spray pipe (64) rotates around its own axis on the lifting frame. The two spray pipes (64) can spray and clean the two scrapers (61) that are rotated to the side where the two rotating plates (62) are close to each other through rotation.

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