CN117357941B - Vertical filter press fault monitoring device - Google Patents
Vertical filter press fault monitoring device Download PDFInfo
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- CN117357941B CN117357941B CN202311638596.3A CN202311638596A CN117357941B CN 117357941 B CN117357941 B CN 117357941B CN 202311638596 A CN202311638596 A CN 202311638596A CN 117357941 B CN117357941 B CN 117357941B
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- Prior art keywords
- filter cloth
- roller
- washing
- filter press
- bracket
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 119
- 238000005406 washing Methods 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000002893 slag Substances 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000012065 filter cake Substances 0.000 description 11
- 238000001914 filtration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005693 optoelectronics Effects 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of filter presses, in particular to a fault monitoring device of a vertical filter press, which comprises: the vertical filter press comprises a plurality of laminates, and a bend roll is slidably arranged at one end of each laminate; the washing device comprises a washing bin and a tension adjusting frame, and a filter cloth adjusting device is rotatably arranged in the washing bin and the tension adjusting frame; further comprises: a filter cloth deviation detection device; slag inclusion detection device. According to the invention, the filter cloth deviation detection devices are arranged at the two ends of the bend roll and positioned at the outer sides of the laminate, so that the deviation of the filter cloth can be automatically monitored; a contact roller is arranged above the second redirecting roller on the right side, the contact roller is matched with the second redirecting roller to clamp the filter cloth, the displacement of the contact roller is utilized to reflect the change of the thickness of the filter cloth, and the photoelectric switch is matched to realize the real-time monitoring of the change of the thickness of the filter cloth, namely the real-time monitoring of slag inclusion of the filter cloth; through the cooperation of filter cloth off tracking detection device and clamp slag detection device, can realize the preliminary judgement to filter cloth state.
Description
Technical Field
The invention relates to the technical field of filter presses, in particular to a fault monitoring device of a vertical filter press.
Background
When the vertical automatic filter press is operated, slurry is pumped into each filter chamber by a feed pump, solids are trapped by a filter cloth belt to form filter cakes, liquid is discharged through the filter cakes, the filter cloth and a filter plate liquid discharge channel, the filter cakes are formed and then enter an extrusion process, or compressed air can be used for drying the filter cakes to minimize residual moisture in the filter cakes, washing water is entered for washing the filter cakes if washing is needed, then the plates are pulled open, the length of one plate of the filter cloth is moved, the dehydrated filter cakes are moved to a roller to be discharged, and one operation cycle is completed and the next operation cycle is entered. However, the filter plates are placed from vertical to horizontal, so that compared with a plate-and-frame filter press, the filter plates have more uniform thickness, and the filter cake washing effect and the washing tax utilization rate are higher than those of the plate-and-frame filter press, and the single filtering area of the equipment can reach about 160 square meters at present.
The vertical filter press is characterized in that the filter cloth is discharged by walking, so that after the filter cloth is used for a period of time, certain longitudinal or transverse deformation can be generated due to the pulling of the filter cake, the filter cloth is deviated, and after the filter cloth is deviated, the filtering effect is reduced, and the problem of incomplete filtering is solved; in addition, due to deformation or incomplete installation of the scraper, blockage of the cleaning nozzle and other reasons, residue can be produced and remained on the filter cloth, so that the filter cloth becomes thicker, the filtering efficiency of the filter cloth is reduced, and the problems of incomplete filtering, deviation of the filter cloth and the like occur. The vertical filter press in the prior art cannot automatically monitor key components of the filter press, and cannot accurately judge when to maintain or overhaul, so that the production quality and the production efficiency of the filter press are affected, and the time cost is increased.
Disclosure of Invention
In order to solve the problems of deflection of the filter cloth and slag inclusion of the filter cloth of the vertical filter press and the problem of high cost of overhauling and maintaining time in the prior art, the invention provides a fault monitoring device of the vertical filter press.
The technical scheme of the invention is as follows:
a fault monitoring device for a vertical filter press, comprising:
the vertical filter press comprises a plurality of laminates, and a bend roll is slidably arranged at one end of each laminate;
the washing device comprises a washing bin, a tension adjusting frame is fixedly arranged at the right end of the top surface of the washing bin, and filter cloth adjusting devices are rotatably arranged in the washing bin and the tension adjusting frame;
the improvement is that the method also comprises the following steps:
the filter cloth deviation detection device is arranged at two ends of the direction-changing roller and is positioned at the outer side of the laminate, the filter cloth deviation detection device comprises a first sliding support, the first sliding support is rotatably connected with the direction-changing roller and is slidably arranged at the outer side of the laminate, the first sliding support is connected with a limiting support through a pre-tensioning assembly, one side, close to the first sliding support, of the limiting support is provided with a self-resetting switch, and after the first sliding support contacts with the top surface of the self-resetting switch, the self-resetting switch sends out a signal;
the slag inclusion detection device is located above the filter cloth adjusting device and fixedly installed on the tension adjusting frame, the slag inclusion detection device comprises a contact roller, two ends of the contact roller penetrate through the tension adjusting frame and then are slidably installed on the inner side of the top of the tension adjusting frame through a sliding support, the bottom surface of the contact roller is in contact with the filter cloth, and the sliding support is connected with a movable amplifying device.
As a preferable technical scheme of the invention, one end of each laminate is provided with an open slot, and the directions of the open slots of two adjacent laminates are opposite.
As a preferable technical scheme of the invention, the bend roll is slidably arranged at one end of the laminate with an open slot and can slide along the open slot, and the filter cloth sequentially bypasses the bend roll of each layer.
As a preferable technical scheme of the invention, the filter cloth adjusting device comprises a washing roller which is rotatably arranged at the left end and the right end of the inside of the washing bin, and a squeezing roller which is rotatably arranged above the washing bin and at the bottom of the tension adjusting frame.
As the preferable technical scheme of the invention, a filter cloth deviation correcting roller is rotatably arranged on the right side of the top of the tension adjusting frame, two second redirecting rollers are rotatably arranged on the left side of the filter cloth deviation correcting roller, the contact roller is positioned above the second redirecting rollers on the right side, and the upper surface and the lower surface of the filter cloth are respectively contacted with the contact roller and the second redirecting rollers on the right side.
As the preferable technical scheme of the invention, a limiting plate is arranged on one side of the first sliding support, which is close to the limiting support, and the pretension component is fixedly arranged on one side of the limiting plate, which is close to the limiting support.
As a preferable technical scheme of the pretension assembly, the pretension assembly comprises a guide rod, one end of the guide rod is fixedly connected with a limiting plate, the other end of the guide rod penetrates through a limiting support and can slide through the limiting support, a tension spring is arranged on the guide rod, and two ends of the tension spring are respectively propped against the limiting plate and the limiting support.
As a preferable technical scheme of the invention, the mobile amplifying device comprises a connecting rod, a sliding groove is arranged on the top of the connecting rod in a penetrating way, and the mobile amplifying device further comprises an eccentric rotating rod which is rotatably arranged on the outer side of the tension adjusting frame and is positioned between the connecting rod and the tension adjusting frame.
As the preferable technical scheme of the invention, the front surface of the shorter end part of the eccentric rotating rod is provided with a cylindrical bulge, the cylindrical bulge is inserted into the sliding groove and can slide in the sliding groove, the back surface of the longer end part of the eccentric rotating rod is provided with a photoelectric switch, and the photoelectric switch is fixedly arranged outside the tension adjusting frame.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the filter cloth deviation detection devices are arranged at the two ends of the direction-changing roller and positioned at the outer sides of the laminate, the filter cloth is perpendicular to the center of the axis of the direction-changing roller, when the filter cloth deviates, the pressure applied by the filter cloth to the direction-changing roller deviates from the center of the axis of the direction-changing roller, and the elastic force of the tension spring can drive one end of the direction-changing roller with smaller stress to move, so that the deviation of the filter cloth is automatically monitored;
2. according to the invention, the contact roller is arranged above the second redirecting roller on the right side, the contact roller is matched with the second redirecting roller to clamp the filter cloth, the displacement of the contact roller is utilized to reflect the change of the thickness of the filter cloth, when the contact roller is displaced, the eccentric rotating rod can be driven to rotate by the connecting rod, the length of the two sides of the rotating point of the eccentric rotating rod is utilized to be different, and the movement amount of the contact roller is amplified, so that the change of the thickness of the filter cloth is amplified, the detection is convenient, and the real-time monitoring of the change of the thickness of the filter cloth, namely the real-time monitoring of slag inclusion of the filter cloth can be realized by matching with the photoelectric switch;
3. according to the invention, the filter cloth state can be primarily judged through the cooperation of the filter cloth deviation detection device and the slag inclusion detection device, the direction-changing roller is uniformly displaced or is not displaced, but the filter cloth is deformed and needs to be replaced or repaired when the thickness of the filter cloth is changed; when one end of the bend roll is displaced, but the thickness of the filter cloth is not changed, the filter cloth is deviated and still can be used continuously.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a schematic view of a neutral filter press according to the present invention;
FIG. 3 is an enlarged schematic view of the structure A in the present invention;
FIG. 4 is a schematic view of a washing apparatus according to the present invention;
FIG. 5 is a cross-sectional view of a washing structure according to the present invention;
FIG. 6 is an enlarged schematic view of the structure at B in the present invention;
FIG. 7 is an exploded view of the structure of the filter cloth deviation detecting device in the invention;
FIG. 8 is a schematic diagram of a slag inclusion detection device according to the present invention;
fig. 9 is a schematic diagram of a mobile amplifying device according to the present invention.
In the figure:
1. a vertical filter press; 11. a base; 12. a frame; 13. a laminate; 14. an open slot; 15. a redirecting roller; 16. a filter cloth;
2. a washing device; 21. a washing bin; 22. a washing roller; 23. a spraying device; 24. a wringing roller; 25. a tension adjusting frame; 26. a filter cloth deviation correcting roller; 27. a second redirecting roller; 28. a tension adjusting roller; 29. a tension adjusting device;
3. a filter cloth deviation detection device; 31. a first sliding bracket; 32. a limiting plate; 33. a guide rod; 34. a tension spring; 35. a limit bracket; 36. a self-resetting switch;
4. slag inclusion detection device; 41. a contact roller; 42. a sliding support; 43. a connecting rod; 44. a sliding groove; 45. an eccentric rotating rod; 46. an optoelectronic switch.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-9, the present invention is described in detail by the following embodiments:
a fault monitoring device for a vertical filter press, comprising:
the vertical filter press 1, the vertical filter press 1 includes a plurality of plywood 13, and plywood 13 one end slidable mounting has bend roll 15, and filter cloth off tracking detection device 3 is installed to bend roll 15 both ends and lie in plywood 13 outside.
The vertical filter press 1 further comprises a base 11, a frame 12 is fixedly arranged above the base 11, and a laminate 13 is slidably arranged inside the frame 12.
One end of each laminate 13 is provided with an open slot 14, and the open slots 14 of two adjacent laminates 13 are opposite in direction. The direction-changing roller 15 is slidably installed at one end of the laminate 13 having the open groove 14 and is capable of sliding along the open groove 14, and the filter cloth 16 sequentially passes around the direction-changing roller 15 of each layer.
The direction-changing roller 15 is used for changing the direction of the filter cloth 16, and under normal conditions, the filter cloth 16 should be just positioned in the middle of the direction-changing roller 15, and the distances from the two sides of the filter cloth 16 to the two ends of the direction-changing roller 15 are the same. The redirecting roller 15 can rotate around the axis while sliding along the open groove 14.
The washing device 2, the washing device 2 comprises a washing bin 21, a tension adjusting frame 25 is fixedly arranged at the right end of the top surface of the washing bin 21 through bolts, a filter cloth adjusting device is rotatably arranged in the washing bin 21 and the tension adjusting frame 25, and a slag inclusion detecting device 4 is fixedly arranged above the filter cloth adjusting device and on the tension adjusting frame 25.
The washing bin 21 is fixedly installed on the right side edge of the top surface of the base 11.
The filter cloth adjusting device comprises a washing roller 22, the washing roller 22 is rotatably arranged at the left end and the right end of the inside of the washing bin 21, and a squeezing roller 24 is rotatably arranged above the washing bin 21 and at the bottom of a tension adjusting frame 25.
The spray devices 23 are symmetrically and fixedly arranged on the left side and the right side above the washing roller 22 and inside the washing bin 21, and the spray devices 23 can spray water in the direction of the washing roller 22. As shown in fig. 5, the arrow in the drawing indicates the movement direction of the filter cloth, and the filter cloth 16 enters from the left opening of the washing bin 21, passes through the two washing bins 21, passes around the left washing roller 22, passes inside the washing bin 21, passes around the right washing roller 22, passes through the two spraying devices 23 on the right, and finally passes out from the right opening of the washing bin 21.
The squeezing rollers 24 are one by one and two, the diameter of the squeezing roller 24 above is smaller, after the filter cloth 16 passes out from the right opening of the washing bin 21, the squeezing roller 24 with smaller diameter is bypassed from the left side, then passes between the two squeezing rollers 24, and then extends upwards after being bypassed from the lower part of the squeezing roller 24 with larger diameter to the right side.
The right side of the top of the tension adjusting frame 25 is rotatably provided with a filter cloth deviation correcting roller 26, the left side of the filter cloth deviation correcting roller 26 is rotatably provided with two second redirecting rollers 27, a contact roller 41 is positioned above the right second redirecting roller 27, and the upper surface and the lower surface of the filter cloth 16 are respectively contacted with the contact roller 41 and the right second redirecting roller 27.
The two filter cloth deviation correcting rollers 26 are arranged, the filter cloth 16 extends upwards after passing through the wringing roller 24, and firstly winds from the right side of the upper filter cloth deviation correcting roller 26 to the upper side, then passes through between the two filter cloth deviation correcting rollers 26, winds from the lower side of the lower filter cloth deviation correcting roller 26 to the left side, and then winds from the right side of the right second redirecting roller 27 to the left side and then extends downwards.
The tension adjusting rollers 28 are arranged on the perpendicular bisectors of the axis connecting lines of the two second redirecting rollers 27, and the tension adjusting rollers 28 are slidably arranged on the tension adjusting frame 25 through the tension adjusting device 29 and are positioned below the two second redirecting rollers 27.
The filter cloth 16 which passes around the second redirecting roll 27 on the right side and extends downward extends upward from the right side of the tension adjusting roll 28 to the left side through the bottom side, and then extends to the redirecting roll 15 from the right side of the second redirecting roll 27 on the left side to the left side.
Further comprises:
the filter cloth deviation detecting device 3 comprises a first sliding support 31, the first sliding support 31 is rotatably connected with the bend roll 15 and is slidably mounted on the outer side of the laminate 13, the first sliding support 31 is connected with a limiting support 35 through a pretension assembly, one side, close to the first sliding support 31, of the limiting support 35 is provided with a self-resetting switch 36, and after the first sliding support 31 contacts with the top surface of the self-resetting switch 36, the self-resetting switch 36 sends out a signal.
Under the condition that the filter cloth 16 is not deviated, the filter cloth 16 is positioned in the middle of the redirecting roller 15, the tension of the filter cloth 16 can apply a pressure to the redirecting roller 15, the pressure applied by the filter cloth 16 to the redirecting roller 15 is perpendicular to the center of the axis of the redirecting roller 15, and the pressure applied by the filter cloth 16 to the redirecting roller 15 can drive the redirecting roller 15 to move towards the limit bracket 35, so that the first sliding bracket 31 is driven to move towards the limit bracket 35 until the first sliding bracket 31 contacts with the top surface of the self-resetting switch 36.
The side of the first sliding support 31, which is close to the limiting support 35, is provided with a limiting plate 32, and the pretension assembly is fixedly arranged on the side of the limiting plate 32, which is close to the limiting support 35. The pretension assembly comprises a guide rod 33, one end of the guide rod 33 is welded with the limiting plate 32, the other end of the guide rod 33 penetrates through the limiting support 35 and can slide through the limiting support 35, a tension spring 34 is arranged on the guide rod 33, and two ends of the tension spring 34 respectively abut against the limiting plate 32 and the limiting support 35.
When the limiting plate 32 contacts with the self-resetting switch 36, the tension spring 34 is compressed, the tension spring 34 deforms to generate elastic force, and at the moment, the elastic force of the tension spring 34 is smaller than the pressure exerted by the filter cloth 16 on the redirecting roller 15, but a pretightening force is exerted on the filter cloth 16, so that the filter cloth 16 is tensioned.
When the filter cloth 16 deflects, the pressure applied by the filter cloth 16 to the direction-changing roller 15 deflects relative to the center of the axis of the direction-changing roller 15, so that the pressure applied to the direction-changing roller 15 is uneven, when the pressure applied to one end of the direction-changing roller 15 is smaller than the elastic force of the tension spring 34, the end is far away from the self-resetting switch 36 under the action of the elastic force of the tension spring 34, and the signal generated by the self-resetting switch 36 is changed, so that the detection of the deflection of the filter cloth 16 is realized.
The slag inclusion detection device 4 comprises a contact roller 41, two ends of the contact roller 41 penetrate through the tension adjusting frame 25 and are slidably arranged on the inner side of the top of the tension adjusting frame 25 through a sliding bracket 42, the bottom surface of the contact roller 41 is in contact with the filter cloth 16, and the sliding bracket 42 is connected with a movable amplifying device.
The contact roller 41 clamps the filter cloth 16 in cooperation with the second redirecting roller 27 on the right side, and when the thickness of the filter cloth 16 is changed due to filter cake residues or deformation, the contact roller 41 slides upwards or downwards to displace because the second redirecting roller 27 is not movable.
The movement amplifying device comprises a connecting rod 43, a sliding groove 44 is formed in the top of the connecting rod 43 in a penetrating manner, the movement amplifying device further comprises an eccentric rotating rod 45, and the eccentric rotating rod 45 is rotatably arranged on the outer side of the tension adjusting frame 25 and located between the connecting rod 43 and the tension adjusting frame 25. The front surface of the shorter end head of the eccentric rotating rod 45 is provided with a cylindrical bulge, the cylindrical bulge is inserted into the sliding groove 44 and can slide in the sliding groove 44, the back surface of the longer end head of the eccentric rotating rod 45 is provided with a photoelectric switch 46, and the photoelectric switch 46 is fixedly arranged outside the tension adjusting frame 25.
The connection rod 43 is fixedly installed at the outer top surface of the sliding bracket 42 and maintained in a vertical state. When the contact roller 41 is displaced, the sliding support 42 moves along with the contact roller 41, so that the connecting rod 43 moves up and down, and when the connecting rod 43 moves up and down, the cylindrical protrusion on the front face of the head of the shorter end of the eccentric rotating rod 45 moves up or down along with the connecting rod 43, so that the eccentric rotating rod 45 is driven to rotate. Since the rotation point of the eccentric rotation rod 45 is not located at the geometric center of the eccentric rotation rod 45, the rotation amount of the longer end of the eccentric rotation rod 45 is larger than that of the shorter end, and thus the movement amount of the contact roller 41 is amplified, that is, the thickness variation of the filter cloth 16 is amplified.
When the thickness of the filter cloth 16 is changed excessively, when the eccentric rotating rod 45 rotates, the longer end of the eccentric rotating rod 45 cannot cover the photoelectric switch 46, the photoelectric switch 46 receives external illumination to send out a signal, and the thickness change of the filter cloth 16 is monitored, namely the deformation and slag inclusion of the filter cloth 16 are monitored.
The invention relates to a fault monitoring device of a vertical filter press, which has the following working principle:
s1: normally, in order to ensure the pressure effect, the filter cloth 16 should be positioned in the middle of the redirecting roller 15, when the filter cloth 16 does not deviate or deform, the pressure applied by the filter cloth 16 to the redirecting roller 15 is uniform, under the tension action of the filter cloth 16, the redirecting roller 15 moves towards the direction of the limit bracket 35, and the self-reset switch 36 is extruded by the limit plate 32;
s2: when the filter cloth 16 is offset or deformed, the pressure born by the bend roll 15 is offset, the stress at the two ends of the bend roll 15 is uneven, the end of the bend roll 15 with smaller stress is acted by the elasticity of the tension spring 34 and moves in the direction away from the self-resetting switch 36, the self-resetting switch 36 at the end is not extruded by the limiting plate 32 any more, a signal is sent, the offset detection of the filter cloth 16 is realized, and the offset direction can be detected;
s3: normally, the contact roller 41 and the second redirecting roller 27 on the right side are clamped, when the filter cloth 16 does not clamp slag, the thickness of the filter cloth 16 is uniform, the contact roller 41 cannot jump, the sliding support 42 does not move at the moment, the eccentric rotating rod 45 cannot rotate, and the longer end head of the eccentric rotating rod 45 can shield the photoelectric switch 46;
s4: when the filter cloth 16 clamps slag, a layer of filter cake residues is attached to the surface of the filter cloth 16, so that the thickness of the filter cloth 16 is increased, at this time, the contact roller 41 moves upwards due to the increased thickness of the filter cloth 16, so as to drive the sliding support 42 to move upwards, the sliding support 42 moves upwards so as to drive the connecting rod 43 to move upwards, and the shorter end of the eccentric rotating rod 45 is driven to rotate upwards, and the longer end of the eccentric rotating rod 45 is driven to rotate downwards;
s5: the longer end of the eccentric rotating rod 45 can rotate downwards, so that the head of the longer end of the eccentric rotating rod 45 does not shield the photoelectric switch 46 any more, the photoelectric switch 46 receives external illumination to generate a signal, and the detection of slag inclusion of the filter cloth 16 is realized;
s6: if both of the opto-electronic switches 46 generate signals for a long time at the same time, this indicates that the filter cloth 16 is stuck, and if one of the opto-electronic switches 46 generates signals for a short time or occasionally, no signal is generated from the reset switch 36 at this time, this indicates that deformation occurs in the middle of the filter cloth 16.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A fault monitoring device for a vertical filter press, comprising:
the vertical filter press (1), the vertical filter press (1) comprises a plurality of laminates (13), and a bend roll (15) is slidably arranged at one end of each laminate (13);
the washing device (2) comprises a washing bin (21), a tension adjusting frame (25) is fixedly arranged at the right end of the top surface of the washing bin (21), and filter cloth adjusting devices are rotatably arranged in the washing bin (21) and the tension adjusting frame (25);
characterized by further comprising:
the filter cloth deviation detection device (3), the filter cloth deviation detection device (3) is arranged at two ends of the redirecting roller (15) and is positioned at the outer side of the laminate (13), the filter cloth deviation detection device (3) comprises a first sliding bracket (31), the first sliding bracket (31) is rotatably connected with the redirecting roller (15) and is slidably arranged at the outer side of the laminate (13), the first sliding bracket (31) is connected with a limit bracket (35) through a pretensioning component, one side of the limit bracket (35) is provided with a self-reset switch (36) close to the first sliding bracket (31), the self-reset switch (36) sends out a signal, one side of the first sliding bracket (31) close to the limit bracket (35) is provided with a limit plate (32), the pretensioning component is fixedly arranged at one side of the limit plate (32) close to the limit bracket (35), one end of the guide rod (32) is fixedly connected with the limit plate (32), and the other end of the guide rod (32) can penetrate through the limit bracket (35) and can penetrate through the limit bracket (35) to guide the limit spring (33), two ends of the tension spring (34) are respectively propped against the limiting plate (32) and the limiting bracket (35);
the slag inclusion detection device (4), slag inclusion detection device (4) are located filter cloth adjusting device top and fixed mounting are on tensioning frame (25), slag inclusion detection device (4) are including contact roller (41), after tensioning frame (25) are run through at contact roller (41) both ends, through sliding support (42) slidable mounting in tensioning frame (25) top inboard, contact roller (41) bottom surface and filter cloth (16) contact, sliding support (42) are connected with and remove amplification device.
2. The vertical filter press fault monitoring device of claim 1, wherein: one end of each laminate (13) is provided with an open slot (14), and the directions of the open slots (14) of two adjacent laminates (13) are opposite.
3. The vertical filter press fault monitoring device of claim 2, wherein: the direction-changing roller (15) is slidably arranged at one end of the laminate (13) with the open slot (14) and can slide along the open slot (14), and the filter cloth (16) sequentially bypasses the direction-changing roller (15) of each layer.
4. The vertical filter press fault monitoring device of claim 1, wherein: the filter cloth adjusting device comprises a washing roller (22), the washing roller (22) is rotatably arranged at the left end and the right end of the inside of the washing bin (21), and a squeezing roller (24) is rotatably arranged above the washing bin (21) and at the bottom of the tension adjusting frame (25).
5. The vertical filter press fault monitoring device of claim 4, wherein: the utility model discloses a filter cloth correction roller, including tension adjustment frame (25), filter cloth correction roller (26) are rotatably installed on tension adjustment frame (25) top right side, two second bend rolls (27) are rotatably installed on filter cloth correction roller (26) left side, contact roller (41) are located the right side second bend roll (27) top, two sides respectively with contact roller (41) and right side about filter cloth (16) second bend roll (27) contact.
6. The vertical filter press fault monitoring device of claim 1, wherein: the movable amplifying device comprises a connecting rod (43), a sliding groove (44) is formed in the top of the connecting rod (43) in a penetrating mode, the movable amplifying device further comprises an eccentric rotating rod (45), and the eccentric rotating rod (45) is rotatably arranged on the outer side of the tension adjusting frame (25) and located between the connecting rod (43) and the tension adjusting frame (25).
7. The vertical filter press fault monitoring device of claim 6, wherein: the front face of the shorter end part of the eccentric rotating rod (45) is provided with a cylindrical bulge, the cylindrical bulge is inserted into the sliding groove (44) and can slide in the sliding groove (44), the back face of the longer end part of the eccentric rotating rod (45) is provided with a photoelectric switch (46), and the photoelectric switch (46) is fixedly arranged on the outer side of the tension adjusting frame (25).
Priority Applications (1)
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