CN111302591A - Deviation correcting system for sewage and sludge dewatering equipment - Google Patents
Deviation correcting system for sewage and sludge dewatering equipment Download PDFInfo
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- CN111302591A CN111302591A CN202010172084.2A CN202010172084A CN111302591A CN 111302591 A CN111302591 A CN 111302591A CN 202010172084 A CN202010172084 A CN 202010172084A CN 111302591 A CN111302591 A CN 111302591A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/056—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
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Abstract
The invention relates to a deviation rectifying system for sewage sludge dewatering equipment.A self-operated deviation rectifying component rectifies deviation of an adjusting roller in real time by depending on a moment balance principle of the system, so that forces on two sides of a centroid of a filter belt are in dynamic balance in the operation process. For dealing with the great condition of offset, actively rectify a deviation to the filter belt through designing the external force deviation rectifying assembly, the external force deviation rectifying assembly can be matched with the aligning bearing seat through the lead screw, and in a further embodiment, the external force deviation rectifying assembly can also be matched with the connecting rod through the air cylinder. The infrared detection assembly is used for detecting whether the left edge and the right edge of the filter belt exceed a set range or not, and then feeding back the left edge and the right edge to the external force deviation rectifying assembly for active deviation rectifying compensation. The photoelectric weft straightening assembly detects whether the filter belt has weft movement or not by means of the cooperative work of the detection light-emitting head and the photoelectric detection receiving head, and feeds the filter belt back to the weft straightening roller group for active compensation. The invention combines active deviation correction and passive deviation correction, obviously improves the deviation correction efficiency, and ensures that excessive deviation correction cannot be carried out by matching a plurality of sensors.
Description
This patent is the divisional application, and the information of former application is as follows, the name: the utility model provides a deviation correcting system for sewage silt dewatering equipment, application number: 2019104664362, filing date: 2019/5/31.
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a deviation rectifying system for sewage sludge dewatering equipment.
Background
In sewage sludge treatment, sludge needs to be dewatered by sludge dewatering equipment to form a sludge cake, and the dewatering equipment needs a plurality of dewatering rollers and filter belt combinations to extrude the sludge. The belt sludge dewatering machine can not always keep uniform stress in the operation process, so that the filter belt deviation condition occurs occasionally, and at the moment, the deviation rectifying system is required to exert the effect, so that the filter belt is timely and effectively rectified to ensure the stable and continuous production.
In the prior art, the deviation rectification is performed on the filter belt by using the deviation rectification roller and the limit switch, the sensitivity of the deviation rectification mode is low, and once the limit switch cannot protect the machine to be stopped in time, one end of the filter belt touches the side frame of the dehydrator to turn on the side, so that the filter belt is damaged.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a deviation correcting system for sewage silt dewatering equipment, through the subassembly of rectifying by oneself, the subassembly of rectifying by external force, infrared detection subassembly and the work of mutually supporting of photoelectric weft straightening subassembly, solved the above-mentioned problem that prior art exists.
The technical scheme is as follows: a deviation rectifying system for sewage sludge dewatering equipment comprises a self-operated deviation rectifying assembly, an external force deviation rectifying assembly, an infrared detection assembly and a photoelectric weft straightening assembly.
The self-operated deviation rectifying assembly comprises an installation frame, a thread amplitude plate fixed on the installation frame, adjusting rollers rotatably arranged on two sides of the thread amplitude plate, and a vertical short shaft fixed in the middle of the installation frame;
the external force deviation rectifying assembly comprises a motor arranged on one side of the mounting frame, a screw rod in meshing transmission with the motor through a gear box, a self-aligning bearing seat fixed on the screw rod, and a limit microswitch arranged on one side of the screw rod;
the infrared detection assembly comprises a transmitting head and a receiving head which are respectively fixed at two ends of the adjusting roller;
the photoelectric weft straightening assembly comprises photoelectric detectors arranged on two sides of the self-operated deviation rectifying assembly, a controller electrically connected with the photoelectric detectors, and a weft straightening roller set electrically connected with the controller.
In a further embodiment, the thread expander is provided with left-handed and right-handed threads from the center. The thread angle is 10-15 degrees; the thread expanding plate is fixedly arranged on the mounting frame, and the direction of a thread arrow in the center of the plate is opposite to the running direction of the filter belt; when the filter belt slides across the plate surface, the filter belt is subjected to the action of the counter force of the thread inclined surface to remove and prevent wrinkles.
In a further embodiment, a filter belt for sludge dewatering is wound on the adjusting roller in a predetermined mode, and edge detection small wheels are arranged at predetermined positions on two sides of the filter belt. The edge-detecting small wheel is arranged at a preset position, and the edge-detecting small wheel senses whether the filter belt deviates or not.
In a further embodiment, the photodetector comprises a set of detecting and light emitting heads and a set of photo-detecting and receiving heads symmetrically arranged on two sides of the filter belt. Detecting that parallel light rays emitted by the light emitting head penetrate through the operating filter belt; the photoelectric detection receiving head receives the optical signal and projects the image of the weft yarn to the silicon photocell; the silicon photocell converts the received luminous flux into an electric signal related to the filter belt skew; the electric signal is sent to the controller, and the controller drives the weft straightening roller set to work.
In a further embodiment, the set of weft straightening rollers comprises a pair of female rollers and male rollers rotatably disposed on the mounting frame. The concave roller and the convex roller are combined to form the concave-convex roller type weft straightening device, the filter belt penetrates between the concave roller and the convex roller, when weft straightening is not needed, two roller surfaces are not in contact with the filter belt, if the filter belt moves forwards in an arc weft manner, the device is rotated by a proper angle through electric operation, the convex roller is in contact with the filter belt to perform weft straightening, and otherwise, the concave roller is in contact with the filter belt to perform weft straightening.
In a further embodiment, the external force deviation rectifying assembly further comprises an air cylinder, a first connecting rod hinged on the adjusting roller, and a second connecting rod hinged with a piston rod of the air cylinder and the first connecting rod together. The second connecting rod is driven to swing by extending and retracting a piston rod of the air cylinder, so that the first connecting rod hinged with the second connecting rod is driven to swing, and finally the adjusting roller is controlled to adjust the angle.
In a further embodiment, the detection light emitting head comprises a light source and a lens; the photoelectric detection receiving head comprises a shading sheet, a cylindrical lens, a slit sheet and a silicon photocell. The detection light-emitting head emits parallel light rays which are received by the photoelectric detection receiving head, the parallel light rays firstly penetrate through the shading sheet and then are focused through the cylindrical lens, and the focused light rays penetrate through the slit sheet and finally are projected onto the silicon photocell.
Has the advantages that: the invention relates to a deviation rectifying system for sewage sludge dewatering equipment, which is used for rectifying deviation of a filter belt operated by the sewage sludge dewatering equipment by arranging a self-operated deviation rectifying component, an external force deviation rectifying component, an infrared detection component and a photoelectric weft straightening component. The self-operated deviation correcting component corrects the deviation of the adjusting roller in real time by depending on the moment balance principle of the system, so that the forces on two sides of the centroid of the filter belt are in dynamic balance in the operation process. In consideration of the condition of large offset, the invention actively corrects the deviation of the filter belt by designing the external force deviation correcting component, the external force deviation correcting component can be matched with the self-aligning bearing seat through the screw rod, and in a further embodiment, the external force deviation correcting component can be matched with the connecting rod through the air cylinder. The infrared detection assembly is used for detecting whether the left edge and the right edge of the filter belt exceed a set range or not, and then feeding back the left edge and the right edge to the external force deviation rectifying assembly for active deviation rectifying compensation. The photoelectric weft straightening assembly detects whether the filter belt has weft movement or not by means of the cooperative work of the detection light-emitting head and the photoelectric detection receiving head, and feeds the filter belt back to the weft straightening roller group for active compensation.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a side cut-away view of the first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 4 is a schematic structural view of a weft straightening roller set in the first embodiment of the invention.
Fig. 5 is a schematic structural diagram of an external force deviation rectifying assembly according to an embodiment of the present invention.
The figures are numbered: the device comprises a mounting frame 1, a small edge-detecting wheel 2, an adjusting roller 3, a thread expanding plate 4, a screw rod 5, a self-aligning bearing seat 6, a limit microswitch 7, a motor 8, a gear box 9, an infrared detection assembly 10, a weft straightening roller group 11, a convex roller 1101, a concave roller 1102, a cylinder 12, a second connecting rod 13 and a first connecting rod 14.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 5, the invention discloses a rectification system for sewage sludge dewatering equipment, wherein the rectification system for sewage sludge dewatering equipment comprises an installation frame 1, a threaded expanding plate 4, an adjusting roller 3, a vertical short shaft, a motor 8, a screw rod 5, an aligning bearing seat 6, a limit microswitch 7, a transmitting head, a receiving head, a photoelectric detector, a controller and a weft straightening roller group 11. The thread width-expanding plate 4 is fixed on the mounting frame 1, the adjusting roller 3 is rotatably arranged on two sides of the thread width-expanding plate 4, the vertical short shaft is fixed in the middle of the mounting frame 1, the motor 8 is arranged on one side of the mounting frame 1, the screw rod 5 and the motor 8 are in meshing transmission through the gear box 9, the aligning bearing seat 6 is fixed on the screw rod 5, the limiting microswitch 7 is arranged on one side of the screw rod 5, the transmitting head and the receiving head are fixed at two ends of the adjusting roller 3, the photoelectric detector is arranged on two sides of the self-operated deviation rectifying assembly, the controller is electrically connected with the photoelectric detector, and the weft straightening roller group 11 is electrically connected with the controller. And the thread expander 4 is provided with threads which are respectively rotated left and right from the center. The thread angle is 10-15 degrees; the thread expanding plate 4 is fixedly arranged on the mounting frame 1, and the direction of a thread arrow in the center of the plate is opposite to the running direction of the filter belt; when the filter belt slides across the plate surface, the filter belt is subjected to the action of the counter force of the thread inclined surface to remove and prevent wrinkles. A filter belt for sludge dewatering is wound on the adjusting roller 3 in a preset mode, and edge detection small wheels 2 are arranged at preset positions on two sides of the filter belt. The edge-detecting small wheel 2 is arranged at a preset position, and whether the filter belt deviates or not is sensed by the edge-detecting small wheel 2. The photoelectric detector comprises a group of detection light-emitting heads and photoelectric detection receiving heads which are symmetrically arranged on two sides of the filter belt. The detection light-emitting head comprises a light source and a lens; the photoelectric detection receiving head comprises a shading sheet, a cylindrical lens, a slit sheet and a silicon photocell. The detection light-emitting head emits parallel light rays which are received by the photoelectric detection receiving head, the parallel light rays firstly penetrate through the shading sheet and then are focused through the cylindrical lens, and the focused light rays penetrate through the slit sheet and finally are projected onto the silicon photocell. Detecting that parallel light rays emitted by the light emitting head penetrate through the operating filter belt; the photoelectric detection receiving head receives the optical signal and projects the image of the weft yarn to the silicon photocell; the silicon photocell converts the received luminous flux into an electric signal related to the filter belt skew; the electric signal is sent to the controller, and the controller drives the weft straightening roller group 11 to work. The weft straightening roller group 11 comprises a pair of concave rollers 1102 and convex rollers 1101 rotatably arranged on the mounting frame 1. The concave roller 1102 and the convex roller 1101 are combined to form a concave-convex roller 1101 type weft straightening device, the filter belt passes through between the concave roller 1102 and the convex roller 1101, when weft straightening is not needed, two roller surfaces are not contacted with the filter belt, if the filter belt moves forwards in an arc weft, the device is rotated by a proper angle through electric operation, the convex roller 1101 is contacted with the filter belt to perform weft straightening, otherwise, the concave roller 1102 is contacted with the filter belt to perform weft straightening.
Example two:
a deviation rectifying system for sewage sludge dewatering equipment comprises a mounting frame 1, a thread width expanding plate 4, an adjusting roller 3, a vertical short shaft, a transmitting head, a receiving head, an external force deviation rectifying assembly, a photoelectric detector, a controller and a weft straightening roller group 11. The thread width-expanding plate 4 is fixed on the mounting frame 1, the adjusting roller 3 is rotatably arranged on two sides of the thread width-expanding plate 4, the vertical short shaft is fixed in the middle of the mounting frame 1, the transmitting head and the receiving head are fixed at two ends of the adjusting roller 3, the photoelectric detectors are arranged on two sides of the self-operated deviation rectifying assembly, the controller is electrically connected with the photoelectric detectors, and the weft straightening roller group 11 is electrically connected with the controller. The external force deviation rectifying assembly comprises an air cylinder 12, a first connecting rod 14 hinged on the adjusting roller 3, and a second connecting rod 13 hinged with a piston rod of the air cylinder 12 and the first connecting rod 14 together. The second connecting rod 13 is driven to swing by extending and retracting the piston rod of the cylinder 12, and then the first connecting rod 14 hinged with the second connecting rod is driven to swing, and finally the adjusting roller 3 is controlled to adjust the angle.
And the thread expander 4 is provided with threads which are respectively rotated left and right from the center. The thread expanding plate 4 is fixedly arranged on the mounting frame 1, and the direction of a thread arrow in the center of the plate is opposite to the running direction of the filter belt; when the filter belt slides across the plate surface, the filter belt is subjected to the action of the counter force of the thread inclined surface to remove and prevent wrinkles. A filter belt for sludge dewatering is wound on the adjusting roller 3 in a preset mode, and edge detection small wheels 2 are arranged at preset positions on two sides of the filter belt. The edge-detecting small wheel 2 is arranged at a preset position, and whether the filter belt deviates or not is sensed by the edge-detecting small wheel 2. The photoelectric detector comprises a group of detection light-emitting heads and photoelectric detection receiving heads which are symmetrically arranged on two sides of the filter belt. The detection light-emitting head comprises a light source and a lens; the photoelectric detection receiving head comprises a shading sheet, a cylindrical lens, a slit sheet and a silicon photocell. The detection light-emitting head emits parallel light rays which are received by the photoelectric detection receiving head, the parallel light rays firstly penetrate through the shading sheet and then are focused through the cylindrical lens, and the focused light rays penetrate through the slit sheet and finally are projected onto the silicon photocell. Detecting that parallel light rays emitted by the light emitting head penetrate through the operating filter belt; the photoelectric detection receiving head receives the optical signal and projects the image of the weft yarn to the silicon photocell; the silicon photocell converts the received luminous flux into an electric signal related to the filter belt skew; the electric signal is sent to the controller, and the controller drives the weft straightening roller group 11 to work.
According to the technical scheme, the specific working process of the invention is as follows: the self-operated deviation rectifying component is a balancer, a mounting frame 1 of which is provided with a thread width expanding plate 4 and two adjusting rollers 3, and the thread width expanding plate and the two adjusting rollers are dragged by a filter belt to rotate passively. The device is fixed by a vertical short shaft in the middle of the mounting rack 1, is mounted on external equipment and can swing left and right by a preset angle. When the filter belt is in a normal running position, the algebraic sum of the moments on the left side and the right side of the vertical short shaft as the centroid is zero, and the device is in a balanced state. When the belt is shifted to one side, the device swings because the moment balance on both sides of the centroid is broken. Because the running speed of the filter belt is different from the circumferential speed of the skewed driven adjusting roller 3, the filter belt automatically moves back to the other side due to the friction force generated by the relative speed between the filter belt and the skewed driven adjusting roller. In the process of moving the filter belt back, the forces on the two sides of the centroid tend to be balanced, and the device returns to a balanced state after the filter belt returns to a normal position. In the whole operation process of the self-operated deviation rectifying assembly, the moment inside the device is kept in dynamic balance all the time. The external force deviation rectifying assembly is used for dealing with the condition of overlarge offset; when the filter belt deviates to one side and touches the edge detection small wheel 2, the motor 8 is started immediately, the screw rod 5 drives the self-aligning bearing seat 6 at one side of the adjusting roller 3 to move along the axis of the screw rod 5, and the adjusting roller 3 is driven to incline, so that the filter belt moves back; the infrared detection assembly 10 composed of a transmitting head and a receiving head works, the transmitting head and the receiving head detect whether the left and right sides of the filter belt exceed a set range, the transmitting head transmits infrared rays, the receiving head is used for receiving the infrared rays, and if the receiving head does not receive the infrared rays, the system automatically judges that the filter belt is not deviated or the deviation amount is within the preset range; if the receiving head receives infrared rays, the system automatically judges that the offset of the filter belt exceeds a preset range, and if the offset needs to be corrected, the offset is fed back to the external force correction component to carry out active correction compensation.
For the photoelectric weft straightening assembly, the action is realized by mainly depending on a photoelectric detector, a controller and an actuating mechanism (namely the weft straightening roller group 11). The number of the photoelectric detectors is even, the number is at least 2, and the photoelectric detectors are respectively arranged on the left side and the right side of the filter belt. Each photoelectric detector consists of a detection light-emitting head and a photoelectric detection receiving head which are respectively positioned on two sides of the filter belt. The photoelectric detection receiving head is a group of optical receiving elements consisting of a shading sheet, a cylindrical lens, a slit sheet and a silicon photocell. Each slit piece is provided with a single splayed slit or a double splayed slit which is transversely arranged, the inclination angles of the slits are various, the single splayed slit is mainly positive and negative 6 degrees, and the double splayed slit is positive and negative 6 degrees, positive and negative 10 degrees, positive and negative 4 degrees and positive and negative 9 degrees. If the angle is proper, the double splayed slits can obtain higher weft detection precision and wider weft detection range. The detection light-emitting head emits parallel light rays which are received by the photoelectric detection receiving head, the parallel light rays firstly penetrate through the shading sheet and then are focused through the cylindrical lens, and the focused light rays penetrate through the slit sheet and finally are projected onto the silicon photocell.
In the second embodiment, the external force deviation rectifying assembly further comprises an air cylinder 12, a first connecting rod 14 hinged on the adjusting roller 3, and a second connecting rod 13 hinged together with a piston rod of the air cylinder 12 and the first connecting rod 14. The horizontal position of the thread expanding roller can adjust the wrapping angle of the filter belt on three roller surfaces and the longitudinal tension of the filter belt. An infrared photoelectric edge-detecting system composed of two sets of emitting heads and receiving heads makes the executing mechanism automatically correct the deviation by the control part according to the photoelectric monitoring signal detected when the deviation of the left and right edges of the running open-width filter belt exceeds the set range. Consists of two passive deviation rectifying rollers, a connecting rod and a cylinder 12. When correcting deviation, the control part commands the pneumatic control valve to control the cylinder 12 to make the deviation correcting roller incline correspondingly according to the deviation direction of the filter belt, until the relative speed is generated between the whole filter belt and the two deviation correcting roller surfaces in operation to make the filter belt rapidly return to the other side to the normal position, and then the deviation correcting roller resets. The special motor 8 capable of changing the steering can be adopted to drive the screw rod 5 to steer according to the command of the control part, and the rectifying roller is operated through the connecting rod. In addition, some sliding strip type deviation correcting rollers with a roller surface provided with a plurality of sliding strips capable of moving along the axial direction of the roller are adopted, and the sliding strips on the roller surface contacted with the filter belt slide in the direction opposite to the offset of the filter belt according to the instruction of a control part to enable the filter belt to move back and return to operate so as to meet the requirements of certain filter belts. The extension deviation-rectifying combination device can effectively extend the filter belt, automatically rectify deviation, and is sensitive and stable.
In summary, the invention relates to a deviation rectifying system for sewage sludge dewatering equipment, wherein a self-operated deviation rectifying component rectifies the deviation of an adjusting roller 3 in real time by means of the moment balance principle of the system, so that the forces on two sides of a centroid of a filter belt are in dynamic balance in the operation process. In order to deal with the situation of large offset, the filter belt is actively corrected by designing the external force correction component, the external force correction component can be matched with the self-aligning bearing seat 6 through the screw rod 5, and in a further embodiment, the external force correction component can also be matched with the connecting rod through the air cylinder 12. The infrared detection assembly 10 is used for detecting whether the left and right edges of the filter belt exceed a set range or not, and feeding back the filter belt to the external force deviation rectifying assembly for active deviation rectifying compensation. The photoelectric weft straightening assembly detects whether the filter belt has weft movement or not by means of the cooperative work of the detection light-emitting head and the photoelectric detection receiving head, and feeds the filter belt back to the weft straightening roller group 11 for active compensation. The invention combines active deviation correction and passive deviation correction, obviously improves the deviation correction efficiency, and ensures that excessive deviation correction cannot be carried out by matching a plurality of sensors.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A deviation rectifying system for sewage and sludge dewatering equipment is characterized by being based on the following components:
the self-operated deviation rectifying assembly comprises a mounting frame, a thread width expanding plate fixed on the mounting frame, adjusting rollers rotatably arranged on two sides of the thread width expanding plate, and a vertical short shaft fixed in the middle of the mounting frame; a filter belt for sludge dewatering is wound on the adjusting roller in a preset mode, and edge detection small wheels are arranged at preset positions on two sides of the filter belt; the thread expander is provided with threads which are respectively rotated left and right from the center;
the external force deviation rectifying assembly comprises a motor arranged on one side of the mounting frame, a screw rod in meshing transmission with the motor through a gear box, a self-aligning bearing seat fixed on the screw rod, and a limit microswitch arranged on one side of the screw rod;
the infrared detection assembly comprises a transmitting head and a receiving head which are respectively fixed at two ends of the adjusting roller;
the photoelectric weft straightening assembly comprises photoelectric detectors arranged on two sides of the self-operated deviation rectifying assembly, a controller electrically connected with the photoelectric detectors, and a weft straightening roller set electrically connected with the controller; the weft straightening roller group comprises a pair of concave rollers and convex rollers which are rotatably arranged on the mounting frame; the concave roller and the convex roller are combined to form a concave-convex roller type weft straightening device, a filter belt passes through between the concave roller and the convex roller, when weft straightening is not needed, two roller surfaces are not contacted with the filter belt, if the filter belt moves forwards in an arc weft manner, the device is rotated by a proper angle through electric operation, the convex roller is contacted with the filter belt to perform weft straightening, otherwise, the concave roller is contacted with the filter belt to perform weft straightening;
the method comprises the following steps:
the self-operated deviation rectifying method comprises the following steps: when the operating position of the filter belt is normal, the moment algebraic sum of the left side and the right side of the vertical short shaft as the centroid is zero, and the device is in a balanced state; when the filter belt deviates to one side, the device swings because the moment balance at the two sides of the centroid is damaged; because the running speed of the filter belt is different from the peripheral speed of the skewed driven adjusting roller, the filter belt automatically moves back to the other side due to the friction force generated by the relative speed between the filter belt and the skewed driven adjusting roller; in the return movement process of the filter belt, the forces on the two sides of the centroid tend to be balanced, and the device returns to a balanced state after the filter belt returns to a normal position;
the external force deviation rectifying method comprises the following steps: when the filter belt deviates to one side and touches the edge detection small wheel, the motor is started immediately, the screw rod drives the self-aligning bearing seat on one side of the adjusting roller to move along the axis of the screw rod, the adjusting roller is driven to incline, and then the filter belt moves back; the infrared detection assembly works, the transmitting head and the receiving head detect whether the left and right sides of the filter belt exceed a set range, the transmitting head transmits infrared rays, the receiving head is used for receiving the infrared rays, and if the receiving head does not receive the infrared rays, the system automatically judges that the filter belt is not deviated or the deviation amount is within the preset range; if the receiving head receives infrared rays, the system automatically judges that the offset of the filter belt exceeds a preset range, and if the offset needs to be corrected, the offset is fed back to the external force correction component to carry out active correction compensation;
the external force deviation rectifying assembly further comprises an air cylinder, a first connecting rod hinged on the adjusting roller and a second connecting rod hinged with a piston rod of the air cylinder and the first connecting rod together; an infrared photoelectric edge detecting system consisting of a left emitting head, a right emitting head and a receiving head automatically corrects the deviation of an actuating mechanism through a control part according to a photoelectric monitoring signal detected when the deviation of the left edge and the right edge of an operating open-width filter belt exceeds a set range; when the deviation is corrected, the control part commands the pneumatic control valve to control the air cylinder to make the deviation correcting roller to make corresponding inclination according to the deviation direction of the filter belt, until the relative speed is generated between the whole filter belt and the two deviation correcting roller surfaces in operation to make the filter belt quickly return to the other side to the normal position, and then the deviation correcting roller resets.
2. The deviation rectifying system for sewage sludge dewatering equipment according to claim 1, wherein: the photoelectric detector comprises a group of detection light-emitting heads and photoelectric detection receiving heads which are symmetrically arranged on two sides of the filter belt.
3. The deviation rectifying system for sewage sludge dewatering equipment according to claim 2, wherein: the detection light-emitting head comprises a light source and a lens; the photoelectric detection receiving head comprises a shading sheet, a cylindrical lens, a slit sheet and a silicon photocell.
4. The deviation rectifying system for sewage sludge dewatering equipment according to claim 1, wherein: the external force deviation rectifying assembly comprises an air cylinder, a first connecting rod hinged on the adjusting roller and a second connecting rod hinged with a piston rod of the air cylinder and the first connecting rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172084.2A CN111302591A (en) | 2019-05-31 | 2019-05-31 | Deviation correcting system for sewage and sludge dewatering equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466436.2A CN110078344B (en) | 2019-05-31 | 2019-05-31 | Deviation correcting system for sewage and sludge dewatering equipment |
| CN202010172084.2A CN111302591A (en) | 2019-05-31 | 2019-05-31 | Deviation correcting system for sewage and sludge dewatering equipment |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910466436.2A Division CN110078344B (en) | 2019-05-31 | 2019-05-31 | Deviation correcting system for sewage and sludge dewatering equipment |
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| CN111302591A true CN111302591A (en) | 2020-06-19 |
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| CN202010172084.2A Withdrawn CN111302591A (en) | 2019-05-31 | 2019-05-31 | Deviation correcting system for sewage and sludge dewatering equipment |
| CN201910466436.2A Active CN110078344B (en) | 2019-05-31 | 2019-05-31 | Deviation correcting system for sewage and sludge dewatering equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4867886A (en) * | 1988-07-25 | 1989-09-19 | Westvaco Corporation | Method and apparatus for controlling sludge flocculant flow |
| GB8900285D0 (en) * | 1989-01-06 | 1989-03-08 | Pierson Henri G W | A web guidance mechanism |
| CN2366430Y (en) * | 1999-01-23 | 2000-03-01 | 无锡市前进纺织仪器厂 | Controlling device for spreading textile fabrics and centering |
| JP2006026455A (en) * | 2004-07-12 | 2006-02-02 | Ishigaki Co Ltd | Concentration device using metal filter medium |
| CN201216897Y (en) * | 2008-05-15 | 2009-04-08 | 武钢集团昆明钢铁股份有限公司 | Apparatus for rectifying deviation of belt of belt filter press |
| CN201330324Y (en) * | 2008-12-27 | 2009-10-21 | 襄樊新四五印染有限责任公司 | The crooked deviation correcting device of a kind of fabric weft yarn |
| US9675915B1 (en) * | 2015-04-10 | 2017-06-13 | Englo, Inc. | Separator for dewatering particulate matter suspended in water |
| CN104986605A (en) * | 2015-07-08 | 2015-10-21 | 南通凯迪自动机械有限公司 | Non-contact wide-range edge automatic skew adjusting system and method |
| CN105332255B (en) * | 2015-11-30 | 2017-10-20 | 蚌埠市禹会区贵宾装饰材料商行 | A kind of automatic weft straightener |
| CN208362698U (en) * | 2018-05-23 | 2019-01-11 | 绍兴柯桥育达纺染有限公司 | A kind of deviation correcting device of forming machine |
-
2019
- 2019-05-31 CN CN202010172084.2A patent/CN111302591A/en not_active Withdrawn
- 2019-05-31 CN CN201910466436.2A patent/CN110078344B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110078344A (en) | 2019-08-02 |
| CN110078344B (en) | 2020-04-24 |
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Application publication date: 20200619 |