A device for monitoring the health status of filter press equipment
By setting up an independent monitoring box and cleaning unit on the filter press, the signal instability and mineral mud deposition problems caused by vibration in the prior art are solved, and the whole life cycle health status monitoring and efficient operation of the filter press are achieved.
Patent Information
- Application Number
- CN202510703380.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2045-05-29
AI Technical Summary
The existing filter press detection device is hard-connected to the filter press frame, which is greatly affected by equipment vibration, unstable signal, and short service life of the flowmeter; the deposition of ore sludge in the filtrate leads to inaccurate detection.
A monitoring box independent of the filter press is designed, with a liquid level acquisition part and a turbidity acquisition part inside, equipped with a flushing unit and a scrubbing unit. It is monitored in real time through the liquid level sensor and the slurry turbidity sensor. The cleaning unit includes a flushing nozzle, a speed reduction motor and an elastic cleaning component to automatically clean the sensor mirror.
The entire life cycle monitoring of the filter press is realized, the accuracy of data acquisition and equipment stability are improved, vibration interference is reduced, real-time monitoring of filtrate turbidity is ensured, and operation efficiency is improved.
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Figure CN120227685B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of filter presses, and in particular to a device for monitoring the health status of filter press equipment. Background Art
[0002] The filter press is a mechanical device that uses a special filter medium to apply a certain pressure to the object, causing the liquid to seep out. It is a commonly used solid-liquid separation equipment.
[0003] The reference patent is titled: A fault monitoring device for a vertical filter press (patent publication number: CN117357941A, patent publication date: 2024-01-09), comprising: a vertical filter press, the vertical filter press comprising several layers, one end of which is slidably provided with a redirecting roller; a washing device, the washing device comprising a washing bin and a tension adjustment frame, a filter cloth adjustment device rotatably provided in the washing bin and the tension adjustment frame; further comprising: a filter cloth deviation detection device; a slag inclusion detection device, wherein filter cloth deviation detection devices are installed at both ends of the redirecting roller and on the outside of the layer plate, capable of automatically monitoring the deviation of the filter cloth; a contact roller is provided above the second redirecting roller on the right side, the contact roller cooperates with the second redirecting roller to clamp the filter cloth, the displacement of the contact roller reflects the change in the thickness of the filter cloth, and in conjunction with a photoelectric switch, the change in the thickness of the filter cloth, i.e., the real-time monitoring of the slag inclusion in the filter cloth, can be achieved; the cooperation of the filter cloth deviation detection device and the slag inclusion detection device enables a preliminary judgment of the filter cloth state.
[0004] Based on the description in the above-mentioned document, the existing device for detecting the filter press fixes the flow meter on the discharge port of the filter press and hard-connects it to the filter press frame. It is greatly affected by the vibration of the equipment, the signal is unstable, and the service life of the flow meter is short due to the vibration. Secondly, when there is a problem with the filter cloth, diaphragm or seal, the separated filtrate will contain a large amount of mineral mud. If it is not cleaned regularly, it will be deposited on the sensor, resulting in inaccurate detection. For this reason, the present invention provides a device for monitoring the health status of filter press equipment. Summary of the Invention
[0005] In response to the deficiencies in the prior art, the present invention provides a device for monitoring the health status of filter press equipment, which solves the problem that the existing detection device for the filter press fixes the flow meter on the filter press discharge port and is hard-connected to the filter press frame, is greatly affected by the vibration of the equipment, and the signal is unstable. In addition, due to the influence of vibration, the service life of the flow meter is short; secondly, when there is a problem with the filter cloth, diaphragm or seal, the separated filtrate will contain a large amount of mineral mud, which will be deposited on the sensor if not cleaned regularly, resulting in inaccurate detection.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for monitoring the health status of a filter press, comprising a filter cartridge of the filter press, a monitoring box disposed below the filtrate outlet of the filter cartridge of the filter press, and a status monitoring mechanism disposed in the monitoring box to collect parameters of the filtrate, wherein the status monitoring mechanism comprises:
[0007] Liquid level collection unit: the liquid level sensor is set on the side wall of the monitoring box to collect liquid level status data;
[0008] Turbidity collection unit: the slurry turbidity sensor is set at the bottom of the inner cavity of the monitoring box to collect slurry turbidity data;
[0009] The cleaning section includes a flushing unit and a scrubbing unit to simultaneously clean the liquid level collection section and the turbidity collection section. The scrubbing unit includes an upper plate and a lower plate, and the upper plate and the lower plate are vertically or horizontally displaced by an adjustment unit. The sides of the upper plate and the lower plate facing away from each other are each provided with multiple elastic cleaning components that contact the sensor mirror and clean it.
[0010] The drainage part is responsible for regulating the water output and discharging the water.
[0011] Preferably, the flushing unit comprises:
[0012] A pair of flushing nozzles are provided, and an extension rod is installed on the arc surface of each flushing nozzle, and the extension rod passes through the monitoring box and is rotatably connected to the monitoring box;
[0013] The reduction motor is installed at the driving device slot of the monitoring box, and one end of the reduction motor output shaft is fixed to the extended end of one of the extension rods through a coupling, and the surfaces of the extension rods are rotated synchronously through a transmission member.
[0014] Preferably, the transmission member includes a transmission wheel fixedly mounted on the surface of the extension rod, and the transmission wheels are located in the same plane and at the same height, and the surface of the transmission wheel is connected by a transmission belt to realize the synchronous rotation of the two extension rods.
[0015] Preferably, the adjustment unit includes:
[0016] The vertical frame is located in the drive equipment slot of the monitoring box and is equipped with a pneumatic component to drive the vertical frame to move horizontally to the left and right sides;
[0017] The vertical block is located on the inner side of the vertical frame through a sliding member to perform a vertical sliding operation, and an upper push rod is installed on the top of the vertical block, and the top end of the upper push rod extends through the outside of the vertical frame and is connected and fixed to the bottom side of the upper plate, and a lower push rod is installed at the bottom of the vertical block, and the bottom end of the lower push rod extends through the outside of the vertical frame and is connected and fixed to the top side of the lower plate, and a push spring is sleeved on the surface of the lower push rod, and the two ends of the push spring are respectively fixed to the opposite sides of the vertical block and the vertical frame, and the push spring resets the elastic force without being affected by other external forces to realize the vertical upward movement of the vertical block;
[0018] The front side of the vertical block is limited by the control member and the inner wall of the monitoring box, so that the vertical block can be moved vertically in the vertical frame.
[0019] Preferably, the pneumatic component includes a control cylinder, and the control cylinder is connected and installed on the side wall of the drive equipment slot of the monitoring box. A piston rod slides inside the control cylinder, and the extended end of the piston rod extends through the sheet metal water tank of the monitoring box and is fixed to the side center of the vertical frame, so that the vertical frame can move horizontally to the left and right sides.
[0020] Preferably, the sliding member includes a sliding bar fixedly mounted on the left side of the vertical block, and a sliding groove adapted to slide with the sliding bar is opened on the left side inside the vertical frame, and the sliding bar is located in the sliding groove to move the limiting vertical block only to perform vertical movement operations.
[0021] Preferably, the control element includes:
[0022] A rolling wheel is provided, and a reset member is provided between the rolling wheel and the vertical block to enable the rolling wheel to move forward and backward;
[0023] The L-shaped groove is provided on the front inner wall of the sheet metal water tank in the monitoring box, and when the rolling wheel is located at the horizontal position of the L-shaped groove and moves, the push-up spring is compressed, and the elastic cleaning component on the lower plate cleans the bottom side of the sheet metal water tank in the monitoring box until it moves to the vertical position in the L-shaped groove, and the push-up spring recovers and causes the vertical block to move upward;
[0024] The arc block rolls when the rolling wheel contacts the inner side of the arc block, and moves along the inner side of the arc block to the level of the L-shaped groove. In the process of moving from the vertical position of the L-shaped groove to the inner side of the arc block, the elastic cleaning component on the upper plate cleans the mirror of the liquid level collection part in the monitoring box.
[0025] Preferably, the reset member includes a cylindrical seat installed on the side of the vertical block, and the rolling wheel is rotatably installed on the end of the support shaft, and a movable plate is installed at one end of the support shaft close to the cylindrical seat, and the movable plate slides inside the cylindrical seat, and a reset spring is installed on the opposite side of the movable plate and the inside of the cylindrical seat, and the reset spring realizes the movement of the rolling wheel to the front side through the reset elastic force without being affected by other external forces.
[0026] Preferably, the elastic cleaning component includes a soft brush, and a plurality of placement grooves are provided on the surfaces of the upper plate and the lower plate, and the base of the soft brush is adapted to the aperture of the placement groove to achieve vertical sliding, and a telescopic spring is installed between the base of the soft brush and the opposite side of the placement groove. The telescopic spring realizes the movement of the soft brush to the side away from the placement groove through the reset elastic force without being affected by other external forces.
[0027] Preferably, the drainage part includes an electric proportional valve, and the electric proportional valve is installed in the drainage equipment slot of the monitoring box, the water inlet of the electric proportional valve is installed with an inlet pipe and is connected to the sheet metal water tank of the monitoring box, and the water outlet of the electric proportional valve is installed with an outlet pipe and is connected to an external storage water tank.
[0028] The present invention provides a device for monitoring the health status of filter press equipment. Compared with the prior art, it has the following advantages:
[0029] 1. The device for monitoring the health status of filter press equipment is equipped with a status monitoring mechanism and another set of detection devices independent of the filter press. The detected information is embedded in the filter press system and is not affected by vibration. It is designed with an automatic tank cleaning device, which greatly improves the accuracy of data collection and can monitor the turbidity of the filtrate in real time, realizing full life cycle monitoring of filter press failures, improving the operating efficiency and stability of the filter press, and effectively avoiding the influence of equipment interference in the existing technology.
[0030] 2. The device for monitoring the health status of the filter press equipment is equipped with a flushing unit. It uses the existing water inlet to discharge water into the sheet metal water tank of the monitoring box through the flushing nozzle. It can not only flush the mud on the inner wall of the sheet metal water tank, but also effectively expand the flushing range of the flushing nozzle through the regulation of the transmission parts, and simultaneously clean the mud on the sensor mirror, so as to keep it clean before the next round of slurry inflow and reduce the impact on subsequent monitoring data.
[0031] 3. The device for monitoring the health status of the filter press equipment is provided with a scrubbing unit. The control cylinder is started to drive the vertical frame to move horizontally, so that the elastic cleaning component can scrub the bottom side of the sheet metal water tank and the sensor mirror in the monitoring box, thereby improving the cleaning force while ensuring the cleanliness. The vertical position of the vertical block is regulated by controlling the rolling wheel, the L-shaped groove and the arc block, thereby ensuring that the scrubbing of the sensor mirror is only a one-way scrubbing operation, avoiding the problem of reciprocating scrubbing leaving marks or mud not being cleaned. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is an external three-dimensional structural diagram of the present invention;
[0033] Figure 2 This is a sectional view of the three-dimensional structure of the monitoring box of the present invention;
[0034] Figure 3 It is a three-dimensional structural diagram of the flushing unit of the present invention;
[0035] Figure 4 It is a three-dimensional structural diagram of the drainage part of the present invention;
[0036] Figure 5 This is a three-dimensional diagram of the internal structure of the monitoring box of the present invention;
[0037] Figure 6 A three-dimensional structural diagram of the control component of the present invention;
[0038] Figure 7 A three-dimensional structural diagram of the scrubbing unit of the present invention;
[0039] Figure 8 A partial three-dimensional structural diagram of the scrubbing unit of the present invention;
[0040] Figure 9 A sectional view of the three-dimensional structure of the adjustment unit of the present invention;
[0041] Figure 10 For the present invention Figure 9 A magnified view of the local structure at center A;
[0042] Figure 11 A three-dimensional structural diagram of the elastic cleaning component of the present invention;
[0043] Figure 12 This is a three-dimensional structural exploded view of the control component of the present invention.
[0044] In the picture:
[0045] 1-Filter press cartridge;
[0046] 2-Monitoring box;
[0047] 3-Liquid level collection unit;
[0048] 4- turbidity collection unit;
[0049] 5-flushing unit, 51-flushing nozzle, 52-extension rod, 53-reduction motor, 54-transmission part, 541-transmission wheel, 542-transmission belt;
[0050] 6- scrubbing unit, 61- upper plate, 62- lower plate, 63- elastic cleaning component, 631- soft brush, 632- placement slot, 633- telescopic spring;
[0051] 7-Adjustment unit, 71-Vertical frame, 72-Pneumatic assembly, 721-Control cylinder, 722-Piston rod, 73-Vertical block, 74-Slider, 741-Sliding bar, 742-Sliding slot, 75-Upper ejector, 76-Lower ejector, 77-Ejector spring, 78-Control element, 781-Roller, 782-Reset element, 7821-Cylindrical seat, 7822-Support shaft, 7823-Abutment plate, 7824-Reset spring, 783-L-shaped slot, 784-Arc block;
[0052] 8-drainage part, 81-electric proportional valve, 82-water inlet pipe, 83-water outlet pipe. DETAILED DESCRIPTION
[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0054] See also Figures 1-12 The present invention discloses a device for monitoring the health status of a filter press, comprising a filter press filter cartridge 1. The number of filter press filter cartridges 1 is specifically set according to the size of the filter press and is installed on the filter press. A monitoring box 2 is commonly provided below the filtrate discharge outlets of the plurality of filter press filter cartridges 1. Fixing plates are installed on the two diagonal sides of the monitoring box 2, and screw holes are provided on the other two diagonal sides. Adjacent monitoring boxes 2 can be connected to the fixing plates and screw holes by bolts to realize splicing of the monitoring boxes 2. A status monitoring mechanism is provided in the monitoring box 2 to realize parameter collection operation of the filtrate, and the status monitoring mechanism includes:
[0055] Liquid level acquisition unit 3, the liquid level sensor is arranged on the side wall of the monitoring box 2 to realize the collection of liquid level status data;
[0056] Turbidity collection unit 4, the slurry turbidity sensor is set at the bottom of the inner cavity of the monitoring box 2 to collect slurry turbidity data;
[0057] The cleaning section includes a flushing unit 5 and a scrubbing unit 6 to simultaneously clean the liquid level acquisition section 3 and the turbidity acquisition section 4. The scrubbing unit 6 includes an upper plate 61 and a lower plate 62, and the upper plate 61 and the lower plate 62 are vertically or horizontally displaced by an adjustment unit 7. A plurality of elastic cleaning components 63 are provided on the sides of the upper plate 61 and the lower plate 62 that are away from each other to contact the sensor mirror and clean it.
[0058] The drainage part 8 realizes the regulation of water output and discharges the water.
[0059] Among them, the liquid level sensor static pressure level gauge / liquid level transmitter / liquid level sensor / water level sensor is a pressure sensor for measuring liquid level and is an existing mature product. One model of the slurry level sensor is the GUY5-mining intrinsically safe liquid level sensor, and the slurry turbidity sensor is also a mature existing product. The main models of the slurry turbidity sensor include MDS-G400SS and WQS-T-SC1.
[0060] By setting up a status monitoring mechanism and another set of detection devices independent of the filter press, the detected information is embedded in the filter press system and is not affected by vibration. An automatic tank cleaning device is designed to greatly improve the accuracy of data collection, and the turbidity of the filtrate can be monitored in real time, realizing full life cycle monitoring of filter press failures, improving the operating efficiency and stability of the filter press, and effectively avoiding the influence of equipment interference in the existing technology.
[0061] There are three spaces inside the monitoring box 2, which are the drive equipment slot, the sheet metal water slot and the drainage equipment slot from left to right. The sheet metal water slot is used to load the slurry, while the drive equipment slot and the drainage equipment slot are used for protective loading of electrical equipment.
[0062] See also Figure 2-Figure 3 In the embodiment of the present invention, the flushing unit 5 includes:
[0063] A pair of flushing nozzles 51 are provided, and an extension rod 52 is installed on the arc surface of each flushing nozzle 51. The extension rod 52 passes through the monitoring box 2 and is rotatably connected to the monitoring box 2.
[0064] The reduction motor 53 is installed at the driving device slot of the monitoring box 2, and one end of the output shaft of the reduction motor 53 is fixed to the extended end of one of the extension rods 52 through a coupling, and the surfaces of the extension rods 52 are rotated synchronously through a transmission member 54.
[0065] The flushing nozzle 51 is connected to a water inlet pump through a hose, and the water inlet pump extracts clean water from the water tank through a pipe. The water absorption components are existing mature technologies and are all arranged in the drive equipment slot of the monitoring box 2. The reduction motor 53 realizes forward and reverse operations, and is used to control the flushing nozzle 51 to rotate to complete a larger range of flushing. The reduction motor 53 is electrically connected to an external power supply and can be controlled through the personnel control panel. The rotation of the reduction motor 53 does not exceed 360°, so it will not cause entanglement of the hose.
[0066] See also Figure 3 In an embodiment of the present invention, the transmission member 54 includes a transmission wheel 541 fixedly mounted on the surface of the extension support rod 52, and the transmission wheel 541 is located in the same plane and at the same height, and the surface of the transmission wheel 541 is connected by a transmission belt 542 to realize the synchronous rotation of the two extension support rods 52.
[0067] By providing a flushing unit 5 and utilizing the existing water inlet, water is discharged into the sheet metal water tank of the monitoring box 2 through the flushing nozzle 51. This not only realizes the operation of flushing the mud on the inner wall of the sheet metal water tank, but also effectively expands the flushing range of the flushing nozzle 51 through the regulation of the transmission part 54, and simultaneously cleans the mud on the sensor mirror surface, thereby keeping it clean before the next round of slurry inflow and reducing the impact on subsequent monitoring data.
[0068] See also Figure 5-10 In this embodiment of the present invention, the adjustment unit 7 includes:
[0069] The vertical frame 71 is located in the driving device slot of the monitoring box 2 and is provided with a pneumatic component 72 to drive the vertical frame 71 to move horizontally to the left and right sides;
[0070] The vertical block 73 is located inside the vertical frame 71 through a sliding member 74 for vertical sliding operation, and an upper push rod 75 is installed on the top of the vertical block 73, and the top end of the upper push rod 75 extends through the vertical frame 71 and is fixed to the bottom side of the upper plate 61, while a lower push rod 76 is installed at the bottom of the vertical block 73, and the bottom end of the lower push rod 76 extends through the vertical frame 71 and is fixed to the top side of the lower plate 62. The surface of the lower push rod 76 is provided with a push spring 77, and the two ends of the push spring 77 are fixed to the opposite sides of the vertical block 73 and the vertical frame 71 respectively. The push spring 77 resets the elastic force of the vertical block 73 without being affected by other external forces to achieve vertical upward movement.
[0071] The front side of the vertical block 73 is limited by the control member 78 and the inner wall of the monitoring box 2 to achieve vertical displacement operation of the vertical block 73 in the vertical frame 71 .
[0072] By providing a scrubbing unit 6, the control cylinder 721 is started to drive the vertical frame 71 to move horizontally, so that the elastic cleaning component 63 can perform a scrubbing operation on the bottom side of the sheet metal sink and the sensor mirror in the monitoring box 2, thereby improving the cleaning force while ensuring the degree of cleanliness. The vertical position of the vertical block 73 can be regulated by controlling the rolling wheel 781, the L-shaped groove 783 and the arc block 784, so as to ensure that the scrubbing of the sensor mirror is only performed in one direction, thereby avoiding the problem of leaving marks or mud not being cleaned due to reciprocating scrubbing.
[0073] See also Figure 5 In the embodiment of the present invention, the pneumatic component 72 includes a control cylinder 721, and the control cylinder 721 is connected and installed on the side wall of the driving device slot of the monitoring box 2. A piston rod 722 slides inside the control cylinder 721, and the extended end of the piston rod 722 extends through the sheet metal water tank of the monitoring box 2 and is fixed to the center of the side of the vertical frame 71, so that the vertical frame 71 can move horizontally to the left and right.
[0074] See also Figure 9-10 In the embodiment of the present invention, the sliding member 74 includes a sliding bar 741 fixedly installed on the left side of the vertical block 73, and a sliding groove 742 adapted to slide with the sliding bar 741 is opened on the left side inside the vertical frame 71, and the sliding bar 741 is located in the sliding groove 742 to move the limiting vertical block 73 only to perform vertical movement operations.
[0075] The control cylinder 721 is connected to the external air circuit, and can be opened and closed by a person operating the control panel.
[0076] See also Figure 5-Figure 6 In this embodiment of the present invention, the control element 78 includes:
[0077] A rolling wheel 781 is provided, and a reset member 782 is provided between the rolling wheel 781 and the vertical block 73 to enable the rolling wheel 781 to move forward and backward;
[0078] The L-shaped groove 783 is provided on the front inner wall of the sheet metal water tank in the monitoring box 2. When the rolling wheel 781 is located at the level of the L-shaped groove 783 and moves, the push-up spring 77 is compressed, and the elastic cleaning assembly 63 on the lower plate 62 cleans the bottom side of the sheet metal water tank in the monitoring box 2 until it moves to the vertical position in the L-shaped groove 783. The push-up spring 77 is restored and the vertical block 73 moves upward.
[0079] The arc block 784 rolls when the rolling wheel 781 contacts the inner side of the arc block 784, and moves along the inner side of the arc block 784 to the level of the L-shaped groove 783. In the process of moving vertically from the L-shaped groove 783 to the inner side of the arc block 784, the elastic cleaning component 63 on the upper plate 61 cleans the mirror surface of the liquid level collection part 3 in the monitoring box 2.
[0080] See also Figure 12 In the embodiment of the present invention, the reset member 782 includes a cylindrical seat 7821 installed on the side of the vertical block 73, and the rolling wheel 781 is rotatably installed on the end of the support shaft 7822, and a movable plate 7823 is installed at one end of the support shaft 7822 close to the cylindrical seat 7821, and the movable plate 7823 is located inside the cylindrical seat 7821 and slides, and a reset spring 7824 is installed on the opposite side of the movable plate 7823 and the cylindrical seat 7821, and the reset spring 7824 realizes the movement of the rolling wheel 781 to the front side through the reset elastic force without being affected by other external forces.
[0081] See also Figure 11 In an embodiment of the present invention, the elastic cleaning component 63 includes a soft brush 631, and a plurality of placement grooves 632 are provided on the surfaces of the upper plate 61 and the lower plate 62, and the base of the soft brush 631 is adapted to the aperture of the placement groove 632 to achieve vertical sliding, and a telescopic spring 633 is installed between the base of the soft brush 631 and the opposite side of the placement groove 632. The telescopic spring 633 realizes the movement of the soft brush 631 to the side away from the placement groove 632 through the reset elastic force without being affected by other external forces.
[0082] See also Figure 4 In an embodiment of the present invention, the drainage part 8 includes an electric proportional valve 81, and the electric proportional valve 81 is installed in the drainage equipment slot of the monitoring box 2. The water inlet of the electric proportional valve 81 is installed with an inlet pipe 82 and is connected to the sheet metal water tank of the monitoring box 2. The water outlet of the electric proportional valve 81 is installed with an outlet pipe 83 and is connected to the external storage water tank.
[0083] Among them, the electric proportional valve 81 is electrically connected to the external power supply and can be opened and closed by the personnel operation panel. Since the filter press does not matter whether the slurry is fed from the front end, the rear end, or the front and back are fed at the same time, the slurry feeding condition of each filter chamber is in a certain proportional relationship with the distance between it and the slurry inlet. This relationship will affect the water output of the filtrate per unit time. Adjusting the cross-sectional area of the drain outlet by the electric proportional valve 81 can compensate for the interference caused by the above proportional relationship.
[0084] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0085] During operation, after the filter press works, the water flows from the filter box 1 of the filter press, and the filtrate produced enters the sheet metal water tank of the monitoring box 2;
[0086] During the pulp feeding process, the volume of filtrate flowing out of the pores per unit time first rises and then falls, and accordingly the liquid level in the tank first rises and then falls. During the liquid level falling process, the liquid level information is obtained by the liquid level sensor in the liquid level acquisition unit 3. When the acceleration of the liquid level falling reaches the set threshold, it is determined that the pulp feeding is completed. Similarly, during the squeezing and drying process, the process can also be controlled by judging the acceleration of the liquid level falling.
[0087] The turbidity sensor in the turbidity collection unit 4 is used to determine the health status of the filter cloth, diaphragm and seals. The turbidity data of each press is recorded and saved as the health indicator value of the filter cloth. When the set threshold is reached, a prompt for timely maintenance is issued.
[0088] After each pressing is completed, the water tank and sensor surface should be cleaned before the next round of pulping. The specific operations are as follows:
[0089] The liquid level collection part 3 is cleaned by the water discharge operation of the flushing nozzle 51, and the extension rod 52 is driven by the reduction motor 53 to rotate, and the transmission wheel 541 and the transmission belt 542 are coordinated to realize the synchronous rotation of the extension rod 52 and the connected flushing nozzle 51, thereby expanding the flushing range;
[0090] The piston rod 722 and the vertical frame 71 are moved horizontally by starting the control cylinder 721, and when the rolling wheel 781 is located at the level of the L-shaped groove 783 and moves, the push spring 77 is compressed, and the elastic cleaning component 63 on the lower plate 62 cleans the bottom and side surfaces of the sheet metal water tank in the monitoring box 2, thereby simultaneously achieving the mirror cleaning of the slurry turbidity sensor.
[0091] Until the rolling wheel 781 moves to the vertical position in the L-shaped groove 783, the push spring 77 is restored and the vertical block 73 moves upward, and then the vertical frame 71 is moved horizontally by controlling the cylinder 721 to contract. At this time, the elastic cleaning component 63 on the lower plate 62 is separated from the contact with the bottom side of the sheet metal water tank in the monitoring box 2, and the elastic cleaning component 63 on the upper plate 61 cleans the mirror surface of the liquid level collection part 3 in the monitoring box 2 until the rolling wheel 781 contacts the inner side of the arc block 784 to roll, and moves along the inner side of the arc block 784 to the level of the L-shaped groove 783 to realize the next cleaning.
[0092] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0093] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A device for monitoring the health status of a filter press, comprising a filter press cartridge (1), a monitoring box (2) disposed below a filtrate outlet of the filter press cartridge (1), and characterized in that: A status monitoring mechanism is provided in the monitoring box (2) to realize parameter collection operation of the filtrate, and the status monitoring mechanism includes: A liquid level acquisition unit (3), wherein a liquid level sensor is arranged on the side wall of the monitoring box (2) to collect liquid level status data; A turbidity collection unit (4), wherein the slurry turbidity sensor is arranged at the bottom of the inner cavity of the monitoring box (2) to collect slurry turbidity data; The cleaning portion includes a flushing unit (5) and a scrubbing unit (6) for synchronously performing cleaning operations on the liquid level collecting portion (3) and the turbidity collecting portion (4); the scrubbing unit (6) includes an upper plate (61) and a lower plate (62); and the upper plate (61) and the lower plate (62) are vertically or horizontally displaced by an adjusting unit (7); and a plurality of elastic cleaning components (63) are provided on the sides of the upper plate (61) and the lower plate (62) that are away from each other, so as to contact with the sensor mirror surface and perform cleaning; The drainage part (8) is used to control the water output and discharge the water; The regulating unit (7) comprises: A vertical frame (71) is located in a driving device slot of the monitoring box (2) and is provided with a pneumatic component (72) to drive the vertical frame (71) to move horizontally to the left and right sides; The vertical block (73) is located on the inner side of the vertical frame (71) through the sliding member (74) to perform a vertical sliding operation, and an upper push rod (75) is installed on the top of the vertical block (73), and the top end of the upper push rod (75) extends through the outside of the vertical frame (71) and is fixedly connected to the bottom side of the upper plate (61), and a lower push rod (76) is installed on the lower part of the vertical block (73), and the bottom end of the lower push rod (76) extends through the outside of the vertical frame (71) and is fixedly connected to the top side of the lower plate (62), and the surface of the lower push rod (76) is provided with a push spring (77), and the two ends of the push spring (77) are respectively fixed to the opposite sides of the vertical block (73) and the vertical frame (71), and the push spring (77) resets the elastic force without being affected by other external forces to realize the vertical upward movement of the vertical block (73); The front side of the vertical block (73) is limited by the control member (78) and the inner wall of the monitoring box (2), so that the vertical block (73) is located in the vertical frame (71) and performs a vertical displacement operation; The control member (78) includes: A rolling wheel (781), wherein the rolling wheel (781) and the vertical block (73) are connected via a reset member (782) to enable the rolling wheel (781) to move forward and backward; The L-shaped groove (783) is provided on the inner wall of the front side of the sheet metal water tank in the monitoring box (2), and when the rolling wheel (781) is located at the level of the L-shaped groove (783) and moves, the jacking spring (77) is compressed, and the elastic cleaning component (63) on the lower plate (62) cleans the bottom side of the sheet metal water tank in the monitoring box (2) until it moves to the vertical position in the L-shaped groove (783), and the jacking spring (77) is restored and the vertical block (73) moves upward; The arc block (784) rolls when the rolling wheel (781) contacts the inner side of the arc block (784), and moves along the inner side of the arc block (784) to the level of the L-shaped groove (783). In the process of moving vertically from the L-shaped groove (783) to the inner side of the arc block (784), the elastic cleaning component (63) on the upper plate (61) cleans the mirror surface of the liquid level collection part (3) in the monitoring box (2).
2. The device for monitoring the health status of a filter press according to claim 1, characterized in that: The flushing unit (5) comprises: A pair of flushing nozzles (51) are provided, and an extension rod (52) is installed on the arc surface of each flushing nozzle (51), and the extension rod (52) passes through the monitoring box (2) and is rotatably connected to the monitoring box (2); The reduction motor (53) is installed at the driving device slot of the monitoring box (2), and one end of the output shaft of the reduction motor (53) is fixed to the extended end of one of the extension rods (52) through a coupling, and the surfaces of the extension rods (52) are synchronously rotated through a transmission member (54).
3. The device for monitoring the health status of a filter press according to claim 2, characterized in that: The transmission member (54) includes a transmission wheel (541) fixedly mounted on the surface of the extension rod (52), and the transmission wheel (541) is located in the same plane and at the same height, and the surface of the transmission wheel (541) is connected by a transmission belt (542) to realize the synchronous rotation of the two extension rods (52).
4. The device for monitoring the health status of a filter press according to claim 1, characterized in that: The pneumatic assembly (72) includes a control cylinder (721), and the control cylinder (721) is connected and installed at the side wall of the driving device slot of the monitoring box (2). A piston rod (722) slides inside the control cylinder (721), and the extended end of the piston rod (722) extends through the sheet metal water tank of the monitoring box (2) and is fixed to the center of the side of the vertical frame (71), so that the vertical frame (71) can move horizontally to the left and right sides.
5. The device for monitoring the health status of a filter press according to claim 1, characterized in that: The sliding member (74) includes a sliding bar (741) fixedly mounted on the left side of the vertical block (73), and a sliding groove (742) adapted to slide with the sliding bar (741) is provided on the left side of the interior of the vertical frame (71), and the sliding bar (741) is located in the sliding groove (742) so that the movable limiting vertical block (73) only performs a vertical movement operation.
6. The device for monitoring the health status of a filter press according to claim 1, characterized in that: The reset member (782) includes a cylindrical seat (7821) mounted on the side of the vertical block (73), and the rolling wheel (781) is rotatably mounted on the end of the support shaft (7822), and a moving plate (7823) is mounted on one end of the support shaft (7822) close to the cylindrical seat (7821), and the moving plate (7823) is located inside the cylindrical seat (7821) and slides, and a reset spring (7824) is mounted on the opposite side of the moving plate (7823) and the inside of the cylindrical seat (7821), and the reset spring (7824) realizes the movement of the rolling wheel (781) to the front side through the reset elastic force without being affected by other external forces.
7. The device for monitoring the health status of a filter press according to claim 1, characterized in that: The elastic cleaning component (63) includes a soft brush (631), and a plurality of placement grooves (632) are provided on the surfaces of the upper plate (61) and the lower plate (62). The base of the soft brush (631) is adapted to the aperture of the placement groove (632) to achieve vertical sliding. A telescopic spring (633) is installed between the base of the soft brush (631) and the opposite side of the placement groove (632). The telescopic spring (633) enables the soft brush (631) to move to a side away from the placement groove (632) through a reset elastic force without being affected by other external forces.
8. The device for monitoring the health status of a filter press according to claim 1, characterized in that: The drainage portion (8) includes an electric proportional valve (81), and the electric proportional valve (81) is installed in the drainage equipment slot of the monitoring box (2). The water inlet of the electric proportional valve (81) is installed with a water inlet pipe (82) and is connected to the sheet metal water tank of the monitoring box (2). The water outlet of the electric proportional valve (81) is installed with a water outlet pipe (83) and is connected to an external storage water tank.
Citation Information
Patent Citations
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