CN114750080A - Water jet steel rail grinding wagon waste classification recycling system and method - Google Patents
Water jet steel rail grinding wagon waste classification recycling system and method Download PDFInfo
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- CN114750080A CN114750080A CN202210443380.0A CN202210443380A CN114750080A CN 114750080 A CN114750080 A CN 114750080A CN 202210443380 A CN202210443380 A CN 202210443380A CN 114750080 A CN114750080 A CN 114750080A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a waste classification recycling system and method for a water jet steel rail grinding wagon. The recovery unit comprises a vacuum pump, an abrasive waste liquid collecting box, a centrifugal machine, a drying mechanism, a waste storage box, a waste liquid storage box, a liquid collecting port, a conveying belt and an electromagnet sorting machine. When the operation is carried out, the liquid collecting port keeps following with the water jet flow grinding knife, the grinding material waste liquid after the steel rail is ground is sputtered into the liquid collecting port, the grinding material waste liquid is sucked by the vacuum pump and then is transmitted into the grinding material waste liquid collecting box, the centrifugal machine carries out separation work, the waste liquid, abnormal grinding materials with abnormal particle sizes and normal grinding materials are rapidly separated out, the separated waste liquid is discharged into the waste liquid storage box, the abnormal grinding materials enter the waste material storage box, the normal grinding materials are conveyed onto the transmission belt, the drying mechanism is used for drying, the electromagnet sorting machine grinds the steel rail, the falling particles are adsorbed, and the particles are input into the grinding material tank for cyclic utilization.
Description
Technical Field
The invention belongs to the technical field of rail grinding, and particularly relates to a waste classification recycling system and method of a water jet rail grinding wagon.
Background
The railway transportation industry of China is developed, and the running speed and the load of the train are also continuously improved. Railway transportation brings great economic benefits to China, and meanwhile, the problems of fatigue, abrasion and the like of the steel rail are increasingly serious. The high-pressure abrasive particle water jet technology is environment-friendly, cutting and polishing efficiency is high, the high-pressure abrasive particle water jet is adopted for polishing the steel rail, the service life of the steel rail can be prolonged, and the cost of railway operation is reduced.
The high-pressure abrasive particle water jet is applied to steel rail grinding in the prior art, the generated waste material and waste liquid are not recycled by related technical methods due to limited on-rail space, so that environmental pollution and resource waste are caused, meanwhile, the space for loading abrasives on a rail car is limited, and under the condition that the abrasives are not recycled, the high-pressure abrasive particle water jet device loaded on the rail car is limited in grinding time and cannot work for a long time. In addition, the water jet polishing is cold treatment, the crystal phase structure of the steel rail fragments cannot be changed during polishing, the polished steel rail particles can be used for analyzing the polishing condition of the steel rail, and the abrasive materials after polishing can be recycled.
Patent CN103481207A discloses an abrasive recovery unit among abrasive water jet descaling system, can separate the abrasive material in the recovery abrasive material liquid step by high efficiency through being equipped with multistage overflow recycling bin, but its abrasive material deposition time is long, and the device occupation space is big, is unfavorable for laying on the railcar. Therefore, the high-pressure abrasive jet polishing device needs to be improved, and waste liquid and abrasive during polishing are recycled so as to prolong the working time of the polishing device.
Disclosure of Invention
Aiming at the problem that the prior art can not effectively recycle the grinding material waste liquid generated by water jet steel rail grinding, the invention provides a waste material classification recycling system of a water jet steel rail grinding vehicle, which can collect the grinding material waste liquid generated by grinding to the maximum extent when recycling the grinding material waste liquid, can rapidly carry out centrifugal classification, dries the separated normal grinding material, carries out vibration screening to remove all impurities, and then inputs the grinding material waste liquid into a grinding material tank for recycling, thereby effectively prolonging the working time of a water jet grinding unit.
In order to achieve the purpose, the invention provides a waste classification and recycling system of a water jet steel rail grinding wagon, which comprises the water jet steel rail grinding wagon, a water jet grinding unit and a recovery unit, wherein the water jet grinding unit and the recovery unit are arranged on the water jet steel rail grinding wagon; the recovery unit comprises a vacuum pump, an abrasive waste liquid collecting box, a centrifugal machine, a drying mechanism, a waste material storage box, a waste liquid storage box, a liquid collecting port, a conveying belt and an electromagnet sorting machine; the system comprises a liquid collecting port, an abrasive waste liquid collecting box, a conveying belt, an electromagnet sorting machine, a vacuum pump, a centrifugal machine, a vacuum pump, a conveying belt and a vacuum pump, wherein the liquid collecting port is connected with the input end of the vacuum pump through a pipeline, the input end of the abrasive waste liquid collecting box is connected with the output end of the vacuum pump through a pipeline, the input end of the centrifugal machine is connected with the output end of the abrasive waste liquid collecting box, the input end of the conveying belt receives normal abrasives separated by the centrifugal machine, the output end of the conveying belt is connected with an abrasive tank, and the electromagnet sorting machine is arranged at the top of the output end of the conveying belt; the liquid collecting port and the water jet flow grinding cutter keep follow-up, abrasive waste liquid generated after steel rail grinding is splashed into the liquid collecting port, the abrasive waste liquid is sucked by a vacuum pump and then is transmitted to an abrasive waste liquid collecting box, the abrasive waste liquid collecting box inputs the abrasive waste liquid into a centrifugal machine through a pipeline for solid-liquid separation, the separated waste liquid is discharged into a waste liquid storage box, abnormal abrasive materials enter a waste material storage box and are conveyed to a transmission belt, the normal abrasive materials are dried by a drying mechanism, and after falling particles of the steel rail grinding are absorbed by an electromagnet sorting machine, the normal abrasive materials are input into an abrasive tank for cyclic utilization.
Further, the centrifuge comprises a centrifuge shell, a conical filtering part, a driving motor, a motor shaft, fan blades and a filter screen; the centrifuge shell and the conical filtering part are in inverted cone structures; the bottom of the centrifuge shell is provided with a driving motor, a motor shaft of the driving motor penetrates through the centrifuge shell and the conical filtering part, and the top of the motor shaft is provided with fan blades; the conical filtering part is provided with filtering meshes which can filter out particles with the particle size smaller than the normal abrasive material.
Further, the bottom of the conical filtering part is provided with a normal abrasive discharging port which is connected with a second sediment pump through a pipeline, and the second sediment pump pumps and conveys the normal abrasive at the bottom of the conical filtering part to the input end of the conveying belt; the bottom of the centrifuge shell is provided with an abnormal abrasive discharging port which is connected with a third sand pump through a pipeline, and the third sand pump pumps and conveys the abnormal abrasive at the bottom of the centrifuge shell into a waste storage box; the side edge of the conical bottom of the shell of the centrifugal machine is provided with a waste liquid outlet, and a filter screen is arranged on the waste liquid outlet, so that abnormal grinding materials can be prevented from being discharged along with waste liquid; the waste liquid discharge port is connected with the waste liquid storage tank through a pipeline, and a through-stop valve is further arranged on a connecting pipeline between the waste liquid discharge port and the waste liquid storage tank.
Furthermore, the drying mechanism comprises a hot air pipe and a heating wire, the hot air pipe is arranged at the top of the conveying belt, the heating wire is arranged at the bottom of the conveying belt, the hot air pipe is connected with a heat dissipation mechanism on the water jet steel rail grinding vehicle, waste heat on the water jet steel rail grinding vehicle is recovered and then is sent out through the hot air pipe, and normal grinding materials are dried.
Furthermore, the conveying belt is also provided with screen holes, the bottom of the conveying belt is provided with a waste storage tank, abnormal abrasive materials screened out by the screen holes fall into the waste storage tank, and normal abrasive materials meeting the specification and the grain size are reserved.
Furthermore, the transmission band bottom is equipped with the camshaft, and it is periodic striking transmission band when rotating, makes the transmission band produce the vibration.
Furthermore, a liquid level sensor is also arranged in the centrifugal machine
Furthermore, the output end of the abrasive waste liquid collecting box is connected with the input end of a first sand pump through a pipeline, and the output end of the first sand pump is connected with the input port of the centrifuge.
Further, the electromagnet sorting machine enables steel rail grinding falling particles to be adsorbed and separated from normal grinding materials, and the steel rail grinding falling particles are transported to a crystal analyzer unit through a swing arm to be subjected to crystal phase analysis.
According to one aspect of the invention, the waste classification and reuse method for the water jet steel rail grinding wagon comprises the following steps:
s100: the liquid collecting port collects the abrasive waste liquid, and the abrasive waste liquid is sucked by the negative pressure generated by the vacuum pump and then is transmitted into the abrasive waste liquid collecting box;
s200: the first sand pump is started, turbid liquid formed by mixing the abrasive waste liquid is conveyed into the centrifugal machine, and when the liquid level reaches a specified liquid level, the first sand pump is closed, and the conveyance of the turbid liquid is stopped;
s300: the centrifugal machine starts solid-liquid separation, the open-close valve is opened, waste liquid is quickly discharged into the waste liquid storage box, and separated normal abrasive materials and abnormal abrasive materials are obtained;
s400: starting a second sand pump, and pumping and conveying the supporting abrasive at the bottom of the conical filtering part to a conveying belt; starting a third silt pump to pump and convey abnormal grinding materials at the bottom of the centrifuge shell into a waste storage tank;
s500: the hot air pipe and the heating wire dry the normal abrasive on the transmission belt, and the cam shaft impacts the transmission belt to generate vibration so as to quickly screen out the abnormal abrasive;
s600: starting an electromagnet sorting machine, electrifying the electromagnet, and finely separating normal grinding materials and steel rail grinding falling particles;
s700: enabling normal abrasive to enter an abrasive tank for cyclic utilization;
s800: the steel rail grinding falling particles are transmitted to a crystal analyzer unit for analysis and guidance of subsequent grinding work;
and S900, repeating the steps until the polishing operation of the designated area is completed.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1. the waste classification and reutilization system of the water jet steel rail grinding wagon of the invention has the advantages that when the waste grinding material liquid is recycled, the plurality of liquid collecting ports keep following with the water jet flow polishing knife, so that the grinding material waste liquid after polishing the steel rail is sputtered into the liquid collecting ports, the waste grinding material liquid is sucked by a vacuum pump and then is transmitted into a waste grinding material liquid collecting box, a centrifuge is used for separating the waste grinding material liquid, the abnormal grinding material with the particle size of the abnormal specification and the normal grinding material, the waste liquid is discharged into a waste liquid storing box, the abnormal grinding material enters a waste material storing box, the normal grinding material is transmitted onto a transmission belt, after the normal grinding material is dried by a drying mechanism and the particles falling from the rail are ground by an electromagnet sorting machine for absorption, the water jet polishing device is input into the abrasive tank for cyclic utilization, so that the working time of the water jet polishing unit is effectively prolonged, resources are saved, and the pollution of the abrasive waste liquid to the environment is avoided.
2. According to the waste classification recycling system for the water jet steel rail grinding wagon, the liquid collection port and the water jet grinding knife are arranged to keep follow-up, so that the grinding waste liquid generated by grinding can be collected to the maximum extent, the pollution of the grinding waste liquid to the environment is avoided, and the later recovery, classification and recycling are facilitated; the centrifugal machine is arranged and the conical filtering part is arranged in the centrifugal machine, so that solid-liquid separation and primary screening of normal grinding materials can be quickly realized; the hot air pipe is arranged at the top of the conveying belt, and the heating wire is arranged at the bottom of the conveying belt, so that the normal grinding materials are heated in all directions, and are quickly dehydrated and dried; the transmission belt is provided with the filter mesh holes, and the bottom of the transmission belt is provided with the cam shaft, so that the transmission belt can vibrate to quickly screen out abnormal grinding materials; the electromagnet sorting machine is arranged at the top of the output end of the transmission belt to adsorb steel rail grinding falling particles, so that normal grinding materials are thoroughly separated to remove other impurities, and the steel rail grinding machine can be recycled to perform grinding work again.
3. According to the waste classification recycling system for the water jet steel rail grinding wagon, the recovery unit is arranged, so that the grinding waste liquid generated by grinding can be quickly separated and recycled, and the problem of large-scale waste recycling in water jet steel rail grinding is solved; the whole recovery unit occupies less space, is favorable for being arranged on a rail car, can realize the recycling of the grinding materials in the grinding material separation process, and greatly prolongs the working time of the high-pressure water jet steel rail grinding device.
Drawings
FIG. 1 is a schematic view of a water jet rail grinding wagon according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a waste classification and recycling system of a water jet rail grinding wagon according to an embodiment of the invention;
FIG. 3 is a schematic view of a water jet sharpening blade and a liquid collection port in an embodiment of the invention;
FIG. 4 is a schematic diagram of a specific structure of a recycling unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a centrifuge according to an embodiment of the present invention;
FIG. 6 is a schematic view of a structure of a transfer belt according to an embodiment of the present invention;
FIG. 7 is a flow chart of the operation of a waste classification and reuse system of a water jet rail grinding wagon according to an embodiment of the present invention;
FIG. 8 is a flow chart of a waste classification recycling method of a water jet rail grinding wagon according to an embodiment of the invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-water jet steel rail grinding vehicle, 2-water jet grinding unit, 21-water jet grinding knife, 22-grinding material tank, 23-rack, 3-recovery unit, 31-vacuum pump, 32-grinding material waste liquid collecting box, 321-first sand pump, 33-centrifuge, 331-centrifuge shell, 332-conical filtering part, 333-driving motor, 334-motor shaft, 335-fan blade, 336-filtering screen, 337-second sand pump, 338-third sand pump, 339-waste liquid discharging pipe, 34-drying mechanism, 341-heating wire, 342-hot air pipe, 35-waste material storing box, 351-waste material storing groove, 36-waste liquid storing box, 361-through stop valve, 37-liquid collecting port, 38-conveying belt, 381-camshaft, 39-electromagnet sorting machine, 4-crystal analyzer unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 4, an embodiment of the present invention provides a waste classification and recycling system for a water jet rail grinding wagon, which includes a water jet rail grinding wagon 1, a water jet grinding unit 2 and a recovery unit 3, which are disposed on the water jet rail grinding wagon 1. The recovery unit 3 recovers and classifies the abrasives and the waste liquid generated after the water jet polishing unit 2 polishes the steel rail, and comprises a vacuum pump 31, an abrasive waste liquid collecting box 32, a centrifuge 32, a drying mechanism 34, a waste storage box 35, a waste liquid storage box 36, a liquid collecting port 37, a conveying belt 38 and an electromagnet sorting machine 39. When carrying out abrasive waste liquid recovery, a plurality of album of liquid mouth 37 and water jet are polished and are kept the follow-up, make the abrasive waste liquid after polishing the rail sputter in album of liquid mouth 37, transmit to abrasive waste liquid collecting box 32 after inhaling abrasive waste liquid through vacuum pump 31, centrifuge 32 carries out the separation work to the abrasive waste liquid, with the waste liquid, the improper abrasive material and the normal abrasive material quickly separating of off-specification particle diameter, waste liquid discharge waste liquid storage box 36 of isolating, improper abrasive material gets into waste material storage box 35, normal abrasive material is carried to the transmission band 38 on, dry by drying mechanism 34, electromagnet sorting machine 39 polishes the rail and drops the particulate matter absorption back, input in the abrasive tank 22 and carry out cyclic utilization. According to the waste classification recycling system, the abrasive waste liquid generated after the water jet polishes the steel rail is recycled, classified and reused, so that the working time of the water jet polishing unit 2 is effectively prolonged, resources are saved, and the pollution of the abrasive waste liquid to the environment is avoided.
As shown in fig. 2-3, the rack 23 is spanned on the steel rail, the water jet polishing blade 21 and the liquid collecting port 37 are respectively slidably arranged on two sides of the rack 23, the water jet polishing blade 21 and the liquid collecting port 37 are respectively driven by the axial motor, the liquid collecting port 37 and the water jet polishing blade 21 keep following under the control of the control unit, so that the liquid collecting port 37 is always aligned with the sputtering direction of the abrasive water jet, and the polished abrasive and waste liquid are effectively collected. The liquid collecting port 37 is connected with the input end of the vacuum pump 31 through a pipeline, and the abrasive waste liquid is sucked by the negative pressure generated by the vacuum pump 31 and then is transmitted to the abrasive waste liquid collecting box 32 through the output end.
The input end of the abrasive waste liquid collecting box 32 is connected with the output end of the vacuum pump 31 through a pipeline, the output end of the abrasive waste liquid collecting box is connected with the input end of a first sand pump 321 through a pipeline, and the output end of the first sand pump 321 is connected with the input port of a centrifuge 33; after collecting a certain amount of the waste abrasive liquid, the waste abrasive liquid collecting tank 32 may convey the waste abrasive liquid into the centrifuge 33 through the first sand pump 321 for centrifugal classification. As shown in fig. 5, the centrifuge 33 includes a centrifuge housing 331, a conical filter portion 332, a drive motor 333, a motor shaft 334, fan blades 335, and a filter screen 336. The centrifuge shell 331 and the conical filtering portion 332 are of inverted cone structures, wherein the bottom of the centrifuge shell 331 is provided with a driving motor 333, a motor shaft 334 of the driving motor is penetrated through the centrifuge shell 331 and the conical filtering portion 332, fan blades 335 are arranged at the top of the motor shaft 334, and after the waste abrasive liquid is injected into the centrifuge 33, the driving motor 333 drives the motor shaft 334 to drive the fan blades 335 to rotate, so that the waste abrasive liquid is centrifugally classified. The conical filtering portion 332 is disposed in the centrifuge housing 331, and has a filtering mesh thereon for filtering out particles smaller than the normal abrasive particle size. When the centrifugal machine 33 works, the centrifugal machine is driven by the rotation of the fan blades 335, and the suspension formed by mixing the grinding materials and the waste liquid is accelerated to be thrown out of the conical filtering part 332 through the filtering meshes under the action of centrifugal force, so that the normal grinding materials are left, and the rapid separation of the grinding materials is realized. The centrifuge shell 331 is provided with a waste liquid discharge port at the side of the conical bottom, a filter screen 336 is arranged on the waste liquid discharge port, so that abnormal abrasive materials can be prevented from being discharged together with waste liquid, the waste liquid discharge port is connected with the waste liquid storage box 36 through a pipeline, and a through-stop valve 361 is further arranged on a connecting pipeline between the waste liquid discharge port and the waste liquid storage box and can control the discharge of the waste liquid according to a time sequence. The bottom of the conical filtering part 332 is provided with a normal abrasive discharging port which is connected with a second silt pump 337 through a pipeline; the bottom of the centrifuge housing 331 is provided with an abnormal abrasive discharge port, which is connected with a third sand pump 338 through a pipeline, after the centrifuge 33 stops working, the second sand pump 337 pumps and conveys the normal abrasive at the bottom of the conical filtering portion 332 to the conveying belt 38, and the third sand pump 338 pumps and conveys the abnormal abrasive at the bottom of the centrifuge housing 331 to the waste storage tank 35. In a preferred embodiment of the present invention, a liquid level sensor is further disposed in the centrifuge 33, and is in communication connection with the control unit, and the amount of the waste abrasive discharged from the first sand pump 331 can be controlled by liquid level data detected by the liquid level sensor, so as to avoid overflow caused by excessive discharge, and when the centrifuge 33 works, suspension in the centrifuge is at an optimal working liquid level; in the waste liquid discharging process, when the liquid level is reduced to the bottom of the fan blade 335, a signal is sent out to control the driving motor 333 to stop working, so that the fan blade 335 is prevented from idling; when the liquid level is at the bottom of the centrifuge housing 331, the waste liquid is drained at this time, and the second sand pump 337 and the third sand pump 338 start to operate according to the liquid level data detected by the liquid level sensor, and pump out normal and abnormal abrasives.
After the normal abrasive materials are conveyed to the conveyor belt 38, the steel rails are dried by the drying mechanism 34, secondarily screened by other auxiliary devices, and adsorbed by falling particles of the steel rails by the electromagnet sorting machine 39, and then completely separated to remove other impurities, and the steel rails are conveyed by the conveyor belt 38 and enter the abrasive material tank 22 for cyclic utilization.
As shown in fig. 2 and 4, the input end of the conveyor belt 38 is connected with the output end of the second sand pump 337 through a pipeline, and the normal abrasive is output to the input end of the conveyor belt 38 through the second sand pump 337, so as to perform the secondary screening work of the dryer in the next step. The drying mechanism 34 comprises a hot air pipe 342 and a heating wire 342, the hot air pipe 342 and the heating wire 342 are respectively arranged at the top and the bottom of the conveyor belt 38, the hot air pipe 342 is connected with a heat dissipation mechanism on the water jet steel rail grinding wagon 1, waste heat on the water jet steel rail grinding wagon 1 is recovered and then is sent out through the hot air pipe 342, and normal grinding materials are dried. The hot air pipe 342 is matched with the heating wire 341 arranged at the bottom of the conveying belt 38 to heat the normal abrasive in all directions, so that the normal abrasive is quickly dehydrated and dried. The transmission belt 38 is further provided with a screen hole, the normal abrasives meeting the specification grain diameter can be retained through the abnormal abrasives, the recovered abrasives are secondarily screened by matching with the cam shaft 381 arranged at the bottom of the transmission belt 38, and the abnormal abrasives fall into the waste storage tank 351 arranged at the bottom of the transmission belt 38 through the screen hole to be intensively recovered. The cam shaft 381 is provided with a plurality of groups, and is arranged at the bottom of the transmission belt 38 at intervals with the heating wire 341, and periodically impacts the transmission belt 38 when rotating, so that the transmission belt 38 can vibrate to rapidly screen out abnormal abrasive materials, and meanwhile, normal abrasive materials can be prevented from aggregating and hardening. The electromagnet sorting machine 39 is arranged at the top of the output end of the conveying belt 38, after the electromagnet sorting machine is electrified, steel rails can be polished by the electromagnet arranged on the electromagnet sorting machine to fall particles, and the particles are adsorbed and separated from normal grinding materials, and are transported to the crystal analyzer unit 4 through the swing arm to be subjected to crystal phase analysis, after the normal grinding materials are subjected to secondary screening and the electromagnet sorting machine 39 adsorbs the steel rails to polish and fall particles, other impurities are thoroughly separated and removed, and the steel rails enter the grinding material tank 22 under the conveying of the conveying belt 38.
As shown in fig. 7-8, the invention also provides a waste classification and reuse method of the water jet steel rail grinding wagon, which comprises the following steps:
s100: the liquid collecting port 37 collects the abrasive waste liquid, and the abrasive waste liquid is sucked by the negative pressure generated by the vacuum pump 31 and then is transmitted to the abrasive waste liquid collecting box 32;
s200: the first sand pump 321 is started, suspension formed by mixing the abrasive waste liquid is conveyed into the centrifuge 33, when the liquid level reaches a specified liquid level, the first sand pump 321 is closed, and the conveyance of the suspension is stopped;
s300: the centrifuge 33 starts to perform solid-liquid separation, the open-close valve 361 is opened, and the waste liquid is rapidly discharged into the waste liquid storage tank 36, so that separated normal abrasive and abnormal abrasive are obtained;
s400: the second sand pump 337 is turned on to pump the supporting abrasive from the bottom of the conical filter portion 332 to the conveyor belt 38; the third sand pump 338 is started to pump the abnormal abrasives at the bottom of the centrifuge shell 331 into the waste storage tank 35;
s500: the hot air pipe 342 and the heating wire 342 dry the normal abrasives on the transmission belt 38, and the cam shaft 381 impacts the transmission belt 38 to generate vibration so as to quickly screen out the abnormal abrasives;
s600: starting the electromagnet sorting machine 39, electrifying the electromagnet, and finely separating normal grinding materials and steel rail grinding falling particles;
s700: normal abrasive enters the abrasive tank 22 for recycling;
s800: the steel rail grinding falling particles are transmitted to a crystal analyzer unit 4 for analysis and guidance of subsequent grinding work;
and S900, repeating the steps until the polishing operation of the designated area is completed.
According to the waste classification recycling system, the liquid collection port 37 is arranged to keep follow-up with the water jet polishing knife 21, so that the grinding material waste liquid generated by polishing can be collected to the maximum extent, the pollution of the grinding material waste liquid to the environment is avoided, and the later-stage recovery, classification and recycling are facilitated; the solid-liquid separation and the primary screening of normal grinding materials can be quickly realized by arranging the centrifugal machine 33 and the conical filtering part 332 in the centrifugal machine; the hot air pipe 342 is arranged at the top of the conveying belt 38, and the heating wire 341 is arranged at the bottom of the conveying belt, so that the normal grinding materials are heated in all directions, and are quickly dehydrated and dried; by providing the filter holes on the conveyor belt 38 and the cam shaft 381 at the bottom thereof, the conveyor belt 38 can be vibrated to quickly screen out abnormal abrasives; the electromagnet sorting machine 39 arranged at the top of the output end of the conveying belt 38 adsorbs steel rails to polish falling particles, so that normal grinding materials are thoroughly separated to remove other impurities, and the steel rails can be recycled to polish again. According to the waste classification recycling system, the grinding material waste liquid generated by grinding can be quickly separated and recycled through the recycling unit 3, so that the problem of large-scale waste recycling in steel rail grinding by water jet is solved; the integral recovery unit 3 occupies less space, is beneficial to arrangement on a rail car, can realize the recycling of the grinding materials in the grinding material separation process, and greatly prolongs the working time of the high-pressure water jet steel rail grinding device.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.
Claims (10)
1. The utility model provides a water jet rail grinding wagon waste classification system of recycling, includes water jet rail grinding wagon (1) and locates water jet on water jet rail grinding wagon (1) unit (2) of polishing and recovery unit (3), its characterized in that:
the water jet polishing unit (2) comprises a water jet polishing knife (21) and an abrasive tank (22);
the recovery unit (3) comprises a vacuum pump (31), an abrasive waste liquid collecting box (32), a centrifugal machine (32), a drying mechanism (34), a waste storage box (35), a waste liquid storage box (36), a liquid collecting port (37), a conveying belt (38) and an electromagnet sorting machine (39); the liquid collecting port (37) is connected with the input end of a vacuum pump (31) through a pipeline, the input end of the abrasive waste liquid collecting box (32) is connected with the output end of the vacuum pump (31) through a pipeline, the input port of the centrifugal machine (33) is connected with the output end of the abrasive waste liquid collecting box (321), the input end of the conveying belt (38) receives normal abrasives separated by the centrifugal machine (33), the output end of the conveying belt is connected with the abrasive tank (22), and the electromagnet sorting machine (39) is arranged at the top of the output end of the conveying belt (38);
liquid collection mouth (37) and water jet are polished knife (21) and are kept the follow-up, and the abrasive waste liquid sputtering that produces after polishing the rail gets into in liquid collection mouth (37), inhales the back with the abrasive waste liquid through vacuum pump (31) and transmits to abrasive waste liquid collecting box (32), abrasive waste liquid collecting box (32) carry out solid-liquid separation through the pipeline in with abrasive waste liquid input centrifuge (32), and waste liquid discharge waste liquid storage box (36) of separation, unusual abrasive get into waste storage box (35), and normal abrasive is carried to transmission band (38) on, normal abrasive is through drying mechanism (34) stoving, electro-magnet sorting machine (39) polish the rail and drop the absorption back of particulate matter, input abrasive material jar (22) in cyclic utilization.
2. The waste classification and recycling system of the water jet steel rail grinding wagon of claim 1, wherein the centrifuge (33) comprises a centrifuge shell (331), a conical filtering part (332), a driving motor (333), a motor shaft (334), fan blades (335) and a filter screen (336); the centrifuge shell (331) and the conical filtering part (332) are in inverted cone structures; the bottom of the centrifuge shell (331) is provided with a driving motor (333), a motor shaft (334) of the driving motor penetrates through the centrifuge shell (331) and the conical filtering part (332), and the top of the motor shaft (334) is provided with a fan blade (335); the conical filtering part (332) is provided with a filtering mesh which can filter out particles with the particle size smaller than the normal abrasive material.
3. A water jet steel rail grinding vehicle waste sorting and reusing system according to claim 2, wherein the bottom of the conical filtering portion (332) is provided with a normal abrasive discharging port, and the normal abrasive discharging port is connected with a second sand pump (337) through a pipeline, and the second sand pump (337) pumps the normal abrasive at the bottom of the conical filtering portion (332) to the input end of the conveyor belt (38);
the bottom of the centrifuge shell (331) is provided with an abnormal abrasive discharge outlet which is connected with a third silt pump (338) through a pipeline, and the third silt pump (338) pumps the abnormal abrasive at the bottom of the centrifuge shell (331) to a waste storage tank (35);
a waste liquid discharge port is formed in the side edge of the conical bottom of the centrifuge shell (331), and a filter screen (336) is arranged on the waste liquid discharge port and can prevent abnormal abrasives from being discharged along with the waste liquid; the waste liquid discharge port is connected with a waste liquid storage tank (36) through a pipeline, and a through-stop valve (361) is further arranged on the connecting pipeline between the waste liquid discharge port and the waste liquid storage tank.
4. The waste classification and recycling system of the water jet steel rail grinding wagon according to any one of claims 1 to 3, wherein the drying mechanism (34) comprises a hot air pipe (342) and a heating wire (342) which are respectively arranged at the top and the bottom of the conveyor belt (38), the hot air pipe (342) is connected with a heat dissipation mechanism on the water jet steel rail grinding wagon (1), waste heat on the water jet steel rail grinding wagon (1) is recovered and then sent out through the hot air pipe (342), and normal grinding materials are dried.
5. The waste classification and reuse system of a water jet rail grinding wagon according to any one of claims 1-3, characterized in that the conveyor belt (38) is further provided with screen holes, the bottom of the conveyor belt is provided with a waste storage tank (351), and the screen holes screen out abnormal abrasives to fall into the waste storage tank (351) and retain normal abrasives in accordance with the specification grain size.
6. A waste sorting and reusing system for a water jet rail grinding wagon according to any one of claims 1 to 3, wherein the bottom of the conveyor belt (38) is provided with a cam shaft (381) which periodically hits the conveyor belt (38) when rotating, and vibrates the conveyor belt (38).
7. The waste classification and reuse system of a water jet rail grinding wagon according to any one of claims 1 to 3, wherein a liquid level sensor is further disposed in the centrifuge 33.
8. The waste classification and reuse system of a water jet steel rail grinding wagon according to any one of claims 1-3, wherein the output end of the waste abrasive liquid collecting box (32) is connected with the input end of a first sand pump (32) through a pipeline, and the output end of the first sand pump (321) is connected with the input port of a centrifuge (33).
9. The waste classification and reuse system of a water jet steel rail grinding vehicle according to any one of claims 1 to 3, wherein the electromagnet sorting machine (39) adsorbs and separates the falling particles of rail grinding from the normal abrasive and transports the particles to the crystal analyzer unit (4) for crystal phase analysis through a swing arm.
10. A classification and reutilization method of waste of a water jet steel rail grinding wagon, which is realized by applying the classification and reutilization system of the waste of the water jet steel rail grinding wagon according to any one of claims 1-8, and comprises the following steps:
s100: the liquid collecting port (37) collects the abrasive waste liquid, and the abrasive waste liquid is sucked by the negative pressure generated by the vacuum pump (31) and then is transmitted into the abrasive waste liquid collecting box (32);
s200: the first sand pump (321) is started, turbid liquid formed by mixing the abrasive waste liquid is conveyed into the centrifuge (33), when the liquid level reaches a specified liquid level, the first sand pump (321) is closed, and the conveyance of the turbid liquid is stopped;
s300: the centrifuge (33) starts to perform solid-liquid separation, the open-close valve (361) is opened, and the waste liquid is quickly discharged into the waste liquid storage tank (36) to obtain separated normal abrasive and abnormal abrasive;
s400: starting a second silt pump (337) to pump the supporting abrasive at the bottom of the conical filtering portion (332) to the conveyor belt (38); opening a third silt pump (338) to pump abnormal abrasives at the bottom of the centrifuge shell (331) into a waste storage tank (35);
s500: the hot air pipe (342) and the heating wire (342) dry normal abrasive materials on the transmission belt (38), and the cam shaft (381) impacts the transmission belt (38) to generate vibration so as to rapidly screen abnormal abrasive materials;
s600: starting an electromagnet sorting machine (39), electrifying the electromagnet, and finely separating normal grinding materials and steel rail grinding falling particles;
s700: normal abrasive materials enter the abrasive tank (22) for recycling;
s800: the steel rail grinding falling particles are transmitted to a crystal analyzer unit (4) for analysis and guidance of subsequent grinding work;
and S900, repeating the steps until the polishing operation of the designated area is completed.
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| US6161533A (en) * | 1996-10-01 | 2000-12-19 | Nippei Toyoma Corp. | Slurry managing system and slurry managing method |
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| CN114750080B (en) | 2023-05-16 |
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