CN114750080B - Waste classification and recycling system and method for water jet steel rail grinding wagon - Google Patents
Waste classification and recycling system and method for water jet steel rail grinding wagon Download PDFInfo
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- CN114750080B CN114750080B CN202210443380.0A CN202210443380A CN114750080B CN 114750080 B CN114750080 B CN 114750080B CN 202210443380 A CN202210443380 A CN 202210443380A CN 114750080 B CN114750080 B CN 114750080B
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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 classifying and recycling system and method for a water jet rail grinding wagon. The recovery unit comprises a vacuum pump, an abrasive waste liquid collecting box, a centrifuge, a drying mechanism, a waste storage box, a waste liquid storage box, a liquid collecting port, a conveying belt and an electromagnet sorting machine. During operation, the liquid collecting port and the water jet polishing knife keep following, so that the abrasive waste liquid after polishing the steel rail is sputtered into the liquid collecting port, the abrasive waste liquid is sucked by the vacuum pump and then is transmitted to the abrasive waste liquid collecting tank, the centrifugal machine performs separation work, the waste liquid, abnormal abrasive with different specification particle sizes and normal abrasive are rapidly separated, the separated waste liquid is discharged into the waste liquid storage box, the abnormal abrasive enters the waste storage box, the normal abrasive is conveyed onto the conveying belt, and the steel rail is dried by the drying mechanism and is input into the abrasive tank for recycling after the particles falling from the steel rail are adsorbed by the electromagnet sorting machine.
Description
Technical Field
The invention belongs to the technical field of steel rail grinding, and particularly relates to a waste classification recycling system and method for a water jet steel rail grinding wagon.
Background
The railway transportation industry in China is very developed, and the running speed and the loading capacity of the train are continuously improved. The railway transportation brings great economic benefit 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, the cutting and polishing efficiency is high, and the high-pressure abrasive particle water jet is adopted to polish the steel rail, so that the service life of the steel rail can be prolonged, and the railway operation cost is reduced.
In the prior art, the high-pressure abrasive particle water jet is applied to rail polishing, and waste liquid generated by the high-pressure abrasive particle water jet is recycled due to limited on-orbit space and no related technical method, so that environmental pollution and resource waste are caused, meanwhile, the space for loading the abrasive materials by the rail car is limited, and the polishing time of the high-pressure abrasive particle water jet device loaded by the rail car is limited under the condition that the recycling of the abrasive materials is not realized, so that the high-pressure abrasive particle water jet device loaded by the rail car cannot work for a long time. In addition, the water jet polishing is cold treatment, the crystal phase structure of steel rail scraps cannot be changed during polishing, polished steel rail particles can analyze the polishing condition of the steel rail, and polished abrasive materials can be recycled.
Patent CN103481207a discloses an abrasive recovery device in an abrasive water jet descaling system, and the abrasive in the abrasive liquid can be efficiently separated and recovered step by being provided with a multistage overflow recovery barrel, so that the abrasive can be recycled, but the abrasive deposition time is long, the occupied space of the device is large, and the device is unfavorable for being arranged on a railway car. Therefore, the high-pressure abrasive jet polishing device needs to be improved, and polished waste liquid and abrasive are recycled so as to prolong the working time of the polishing device.
Disclosure of Invention
The invention provides a waste material classifying and recycling system for a water jet rail grinding wagon, which can collect grinding waste material generated by grinding to the greatest extent and rapidly perform centrifugal classification when the grinding waste material is recycled, and the separated normal grinding materials are dried and subjected to vibration screening to remove all impurities and then input into a grinding tank for recycling, so that the working time of the water jet grinding unit is effectively prolonged.
The invention provides a waste classifying and recycling system of a water jet rail grinding wagon, which comprises a water jet rail grinding wagon, a water jet grinding unit and a recycling unit, wherein the water jet grinding unit and the recycling unit are arranged on the water jet rail grinding wagon, and the water jet grinding unit comprises a water jet grinding knife and a grinding tank; the recovery unit comprises a vacuum pump, an abrasive waste liquid collecting box, a centrifuge, a drying mechanism, a waste storage box, a waste liquid storage box, a liquid collecting port, a conveying belt and an electromagnet sorting machine; the centrifugal machine comprises a centrifugal machine 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 of an inverted conical structure; 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, so that particles smaller than the particle size of normal abrasive materials can be filtered out; the bottom of the conical filtering part is provided with a normal abrasive discharge port which is connected with a second silt pump through a pipeline, and the second silt 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 discharge port which is connected with a third sediment pump through a pipeline, and the third sediment pump pumps and conveys the abnormal abrasive at the bottom of the centrifuge shell into a waste storage box; the side edge of the cone bottom of the centrifuge shell is provided with a waste liquid outlet, and a filter screen is arranged on the waste liquid outlet, so that abnormal abrasive materials can be prevented from being discharged together with the waste liquid; the waste liquid discharge port is connected with the waste liquid storage box 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 box; the liquid collecting port is connected with the input end of the vacuum pump through a pipeline, the input end of the grinding material 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 grinding material waste liquid collecting box, the input end of the conveying belt is connected with normal grinding materials separated by the centrifugal machine, the output end of the conveying belt is connected with the grinding material tank, and the electromagnet sorting machine is arranged at the top of the output end of the conveying belt; the conveying belt is also provided with a screen mesh, the bottom of the conveying belt is provided with a waste storage tank, abnormal abrasive materials screened out by the screen mesh fall into the waste storage tank, and normal abrasive materials meeting the specification particle size are reserved; the electromagnet sorting machine adsorbs and separates the steel rail polishing dropping particles from normal abrasive materials, and conveys the steel rail polishing dropping particles to the crystal analyzer unit through the swing arm for crystal phase analysis; the grinding device is characterized in that the liquid collecting port is kept following with the water jet grinding knife, grinding material waste liquid generated after grinding the steel rail is sputtered into the liquid collecting port, the grinding material waste liquid is sucked into the liquid collecting tank through the vacuum pump and then is transmitted into the grinding material waste liquid collecting tank, the grinding material waste liquid collecting tank inputs the grinding material waste liquid into the centrifugal machine for solid-liquid separation through a pipeline, the separated waste liquid is discharged into the waste liquid storage tank, abnormal grinding material enters the waste storage tank and is normally conveyed onto the conveying belt, and the normal grinding material is dried through the drying mechanism and is input into the grinding material tank for recycling after the grinding material falls off after particles are adsorbed by the electromagnet sorting machine.
Further, the drying mechanism comprises a hot air pipe and a heating wire, wherein the hot air pipe and the heating wire are respectively arranged at the top and the bottom of the conveying belt, the hot air pipe is connected with a heat dissipation mechanism on the water jet steel rail grinding wagon, waste heat on the water jet steel rail grinding wagon is recovered and then sent out through the hot air pipe, and normal abrasive materials are dried.
Further, a cam shaft is arranged at the bottom of the transmission belt, and periodically impacts the transmission belt when rotating, so that the transmission belt vibrates.
Further, a liquid level sensor is arranged in the centrifugal machine.
Further, the output end of the grinding material waste liquid collecting box is connected with the input end of the first sediment pump through a pipeline, and the output end of the first sediment pump is connected with the input end of the centrifugal machine.
According to one aspect of the invention, there is also provided a method for classifying and recycling waste materials of a water jet rail grinding wagon, comprising the steps of:
s100: the liquid collecting port collects the waste abrasive liquid, and the waste abrasive liquid is sucked by negative pressure generated by the vacuum pump and then is transmitted to the waste abrasive liquid collecting box;
s200: the first silt pump is started, the suspension formed by mixing the abrasive waste liquid is conveyed into the centrifugal machine, and when the specified liquid level is reached, the first silt pump is closed, and the suspension is stopped being conveyed;
s300: the centrifugal machine starts to perform solid-liquid separation, a through-stop valve is opened, and the waste liquid is rapidly discharged into a waste liquid storage box, so that separated normal abrasive materials and abnormal abrasive materials are obtained;
s400: starting a second sediment pump, and pumping and conveying the supported abrasive at the bottom of the conical filtering part to a conveying belt; starting a third sediment pump to extract and convey abnormal abrasive materials at the bottom of the centrifuge shell into a waste storage box;
s500: the hot air pipe and the heating wire dry the normal abrasive on the conveyor belt, and the camshaft impacts the conveyor belt to vibrate so as to rapidly screen out abnormal abrasive;
s600: starting an electromagnet sorting machine, electrifying the electromagnet, and finely separating normal abrasive materials and steel rail polishing dropping particles;
s700: the normal abrasive enters an abrasive tank for recycling;
s800: the steel rail polishing dropping particles are transmitted to a crystal analyzer unit for analysis and guidance of subsequent polishing work;
and S900, repeating the steps until finishing the polishing operation of the designated area.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1. according to the waste sorting and recycling system for the water jet steel rail grinding wagon, when the waste liquid of the grinding materials is recycled, the liquid collecting ports are kept to follow with the water jet grinding blade, so that the waste liquid of the grinding materials after grinding the steel rails is sputtered into the liquid collecting ports, the waste liquid of the grinding materials is sucked into the waste liquid of the grinding materials through the vacuum pump and is transmitted into the waste liquid collecting box of the grinding materials, the waste liquid of the grinding materials is separated by the centrifugal machine, abnormal grinding materials with different particle sizes and normal grinding materials are quickly separated, the separated waste liquid is discharged into the waste liquid storage box, the abnormal grinding materials enter the waste storage box, the normal grinding materials are conveyed onto the conveying belt, and after the waste liquid of the grinding materials is dried by the drying mechanism and adsorbed by the electromagnet sorting machine, the waste liquid of the grinding materials falls into the grinding material tank for recycling, so that the working time of the water jet grinding unit is effectively prolonged, resources are saved, and the pollution of the waste liquid to the environment is avoided.
2. According to the water jet steel rail grinding wagon waste sorting and recycling system, the liquid collecting port is arranged to keep following with the water jet grinding wagon, so that grinding waste liquid generated by grinding can be collected to the greatest extent, the pollution of the grinding waste liquid to the environment is avoided, and the later recycling, sorting 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 rapidly realized; the normal abrasive is dehydrated and dried rapidly by arranging a hot air pipe at the top of the conveying belt and a heating wire at the bottom of the conveying belt; the transmission belt is provided with the filter meshes, and the bottom of the transmission belt is provided with the cam shaft, so that the transmission belt can vibrate to rapidly screen out abnormal abrasive materials; through being equipped with the electro-magnet sorter at transmission band output top and adsorbing rail and polish and drop the granule, make normal abrasive material thoroughly separate and get rid of other debris, can retrieve the back and polish again.
3. According to the classified recycling system for the waste materials of the water jet steel rail grinding wagon, provided by the invention, the recycling unit is arranged, so that the waste materials of the grinding materials generated by grinding can be rapidly separated and recycled, and the problem of large-scale waste material recycling during water jet steel rail grinding is solved; the whole recovery unit occupies less space, is beneficial to being arranged on the railway car, can realize the recycling of the abrasive in the abrasive separation process, and greatly prolongs the working time of the high-pressure water jet rail grinding device.
Drawings
FIG. 1 is a schematic view of a waterjet rail grinding wagon according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a system for classifying and recycling waste materials of a water jet rail grinding wagon according to an embodiment of the present invention;
FIG. 3 is a schematic view of a water jet polishing blade and a liquid collection port in an embodiment of the present invention;
FIG. 4 is a schematic diagram showing 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 diagram of a transmission belt according to an embodiment of the present invention;
FIG. 7 is a flow chart of a water jet rail grinding wagon waste sorting and recycling system according to an embodiment of the present invention;
FIG. 8 is a flow chart of a method for classifying and recycling waste materials of a water jet rail grinding wagon according to an embodiment of the present invention.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-water jet rail grinding wagon, 2-water jet grinding unit, 21-water jet grinding blade, 22-grinding pot, 23-frame, 3-recovery unit, 31-vacuum pump, 32-abrasive waste liquid collecting box, 321-first silt pump, 33-centrifuge, 331-centrifuge shell, 332-conical filter part, 333-driving motor, 334-motor shaft, 335-fan blade, 336-filter screen, 337-second silt pump, 338-third silt pump, 339-waste liquid discharge pipe, 34-drying mechanism, 341-heating wire, 342-hot blast pipe, 35-waste storage box, 351-waste storage tank, 36-waste liquid storage box, 361-through stop valve, 37-liquid collecting port, 38-transmission belt, 381-cam shaft, 39-electromagnet sorter, 4-crystal analyzer unit.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 4, an embodiment of the present invention provides a waste sorting 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 recycling unit 3 disposed on the water jet rail grinding wagon 1. The recycling unit 3 is used for recycling and classifying the grinding materials and the waste liquid generated by the water jet polishing unit 2 after polishing the steel rail, and comprises a vacuum pump 31, a grinding material waste liquid collecting box 32, a centrifugal machine 33, 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 the waste liquid of the grinding materials is recovered, the liquid collecting ports 37 and the water jet grinding knife 21 keep following, so that the waste liquid of the grinding materials after grinding the steel rail is sputtered into the liquid collecting ports 37, the waste liquid of the grinding materials is sucked by the vacuum pump 31 and then is transmitted into the waste liquid collecting box 32 of the grinding materials, the centrifugal machine 33 separates the waste liquid of the grinding materials, the waste liquid, the abnormal grinding materials with the particle size which does not meet the specification and the normal grinding materials are quickly separated, the separated waste liquid is discharged into the waste liquid storage box 36, the abnormal grinding materials enter the waste storage box 35 and are transmitted onto the transmission belt 38, and the waste liquid is dried by the drying mechanism 34, and the waste liquid of the grinding materials of the steel rail is ground and falls off after the particles are adsorbed by the electromagnet sorting machine 39 and then is input into the grinding material tank 22 for recycling. According to the waste classifying and recycling system, the abrasive waste liquid generated after the steel rail is polished by the water jet is recycled, so that the working time of the water jet polishing unit 2 is effectively prolonged, the resources are saved, and the pollution of the abrasive waste liquid to the environment is avoided.
As shown in fig. 2-3, by arranging the frame 23 on the rail in a straddling manner, the water jet polishing knife 21 and the liquid collecting port 37 are respectively arranged on two sides of the frame 23 in a sliding manner, and are respectively driven by an axial motor, and the liquid collecting port 37 and the water jet polishing knife 21 keep following under the control of the control unit, so that the liquid collecting port 37 is always aligned to the abrasive water jet sputtering direction, 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 negative pressure generated by the vacuum pump 31 sucks the waste abrasive liquid and then transmits the waste abrasive liquid to the waste abrasive liquid collecting box 32 through the output end.
The input end of the grinding material waste liquid collecting box 32 is connected with the output end of the vacuum pump 31 through a pipeline, the output end of the grinding material waste liquid collecting box is connected with the input end of the first sediment pump 321 through a pipeline, and the output end of the first sediment pump 321 is connected with the input end of the centrifugal machine 33; after collecting a certain amount of the abrasive waste liquid, the abrasive waste liquid collecting tank 32 may input the abrasive waste liquid into the centrifuge 33 through the first silt pump 321 for centrifugal classification. The centrifuge 33, as shown in fig. 5, includes a centrifuge housing 331, a conical filter 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 of an inverted conical structure, wherein a driving motor 333 is arranged at the bottom of the centrifuge shell 331, a motor shaft 334 of the driving motor 334 penetrates through the centrifuge shell 331 and the conical filtering part 332, a fan blade 335 is arranged at the top of the motor shaft 334, and after the abrasive waste liquid is injected into the centrifuge 33, the driving motor 333 drives the motor shaft 334 to drive the fan blade 335 to rotate, so that the abrasive waste liquid is centrifugally classified. The cone-shaped filtering part 332 is disposed in the centrifuge housing 331, and has a filtering mesh thereon, so as to filter out particles smaller than the normal abrasive particle size. When the centrifugal machine 33 works, the fan blades 335 are driven to rotate, and the suspension formed by mixing the abrasive and the waste liquid is thrown out of the conical filtering part 332 through the filter meshes under the action of centrifugal force, so that normal abrasive is left, and the quick separation of the abrasive is realized. The centrifuge shell 331 is equipped with the waste liquid discharge port at the bottom of the awl side, is equipped with filter screen 336 on it, can avoid abnormal abrasive material to discharge along with the waste liquid, the waste liquid discharge port passes through the pipeline and is connected with waste liquid storage box 36, still is equipped with on the connecting tube between the two and leads to stop valve 361, can control the waste liquid discharge according to the time sequence. The bottom of the conical filtering part 332 is provided with a normal abrasive discharge outlet which is connected with a second silt pump 337 through a pipeline; the bottom of the centrifuge shell 331 is provided with an abnormal abrasive discharge port, which is connected with a third silt pump 338 through a pipeline, after the centrifuge 33 stops working, the second silt pump 337 pumps and conveys the normal abrasive at the bottom of the conical filter part 332 to the conveyor belt 38, and the third silt pump 338 pumps and conveys the abnormal abrasive at the bottom of the centrifuge shell 331 to the waste storage box 35. In the 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 abrasive waste discharged by the first silt pump 331 can be controlled by the liquid level data detected by the liquid level sensor, so as to avoid overflow caused by excessive discharge, and make the suspension in the centrifuge 33 be at its optimal working liquid level when the centrifuge is in operation; in the waste liquid discharge process, when the liquid level is reduced to the bottom of the fan blade 335, a signal is sent 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 silt pump 337 and the third silt pump 338 start to work according to the liquid level data detected by the liquid level sensor, so that normal and abnormal abrasive materials are pumped out.
After the normal abrasive materials are conveyed onto the conveying belt 38, the normal abrasive materials are dried by the drying mechanism 34, subjected to secondary screening by other auxiliary devices and adsorbed by the electromagnet sorter 39, and then thoroughly separated to remove other impurities, and conveyed by the conveying belt 38 to enter the grinding tank 22 for recycling.
As shown in fig. 2 and 4, the input end of the conveying belt 38 is connected with the output end of the second silt pump 337 through a pipeline, and normal abrasive is output to the input end of the conveying belt 38 through the second silt pump 337 for the next dryer secondary screening work. The drying mechanism 34 comprises a hot air pipe 342 and a heating wire 341, wherein the hot air pipe 342 and the heating wire 341 are respectively arranged at the top of the conveying belt 38, the hot air pipe 342 is connected with a heat dissipation mechanism on the water jet rail grinding wagon 1, waste heat on the water jet rail grinding wagon 1 is recovered and then 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 an omnibearing way, so that the normal abrasive is dehydrated and dried rapidly. The conveyor belt 38 is further provided with a screen hole, normal abrasive materials meeting the specification particle size can be reserved through abnormal abrasive materials, the cam shaft 381 arranged at the bottom of the conveyor belt 38 is matched, the recovered abrasive materials are screened for the second time, and the abnormal abrasive materials fall into the waste storage tank 351 arranged at the bottom of the conveyor belt 38 through the screen hole to be recovered in a concentrated mode. The cam shaft 381 is provided with a plurality of groups, is arranged at the bottom of the transmission belt 38 at intervals with the heating wires 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 material aggregation and hardening can be avoided. The electromagnet sorter 39 is arranged at the top of the output end of the transmission belt 38, after the electromagnet sorter 39 is electrified, the steel rail polishing dropping particles are adsorbed and separated from the normal abrasive materials through the electromagnet arranged on the electromagnet sorter, and are transported to the crystal analyzer unit 4 through the swing arm to carry out crystal phase analysis, and after the normal abrasive materials are subjected to secondary screening and the electromagnet sorter 39 adsorbs the steel rail polishing dropping particles, other impurities are thoroughly separated and removed, and the steel rail polishing dropping particles enter the grinding tank 22 under the transmission of the transmission belt 38.
The crystal analyzer unit 4 is connected with the electromagnet sorting machine 39, can receive rail polishing dropping particles adsorbed by the electromagnet sorting machine 39, analyzes the rail polishing dropping particles through the crystal analyzer unit 4, detects parameters such as a crystal phase structure, a shape, a rust degree and the like, comprehensively judges the real-time state and polishing quality of the rail, and plays a guiding role for subsequent polishing of the water jet polishing vehicle.
As shown in fig. 7-8, the invention also provides a method for classifying and recycling the waste materials of the water jet rail grinding wagon, which comprises the following steps:
s100: the liquid collecting port 37 collects the waste abrasive liquid, and the waste abrasive liquid is sucked by the negative pressure generated by the vacuum pump 31 and then is transmitted to the waste abrasive liquid collecting box 32;
s200: the first silt pump 321 is started, the suspension formed by mixing the abrasive waste liquid is conveyed into the centrifugal machine 33, and when the specified liquid level is reached, the first silt pump 321 is closed, and the suspension is stopped being conveyed;
s300: the centrifuge 33 starts to perform solid-liquid separation, the stop 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: turning on the second silt pump 337 to pump and convey the supporting abrasive at the bottom of the conical filtering part 332 to the conveyor belt 38; starting a third sediment pump 338 to extract and convey abnormal abrasive materials at the bottom of the centrifuge shell 331 into the waste storage box 35;
s500: the hot air pipe 342 and the heating wire 341 dry the normal abrasive on the conveyor belt 38, and the cam shaft 381 impacts the conveyor belt 38 to vibrate so as to quickly screen out abnormal abrasive;
s600: starting an electromagnet sorting machine 39, electrifying the electromagnet, and finely separating normal grinding materials and steel rail grinding falling particles;
s700: the normal abrasive enters the grinding material tank 22 for recycling;
s800: the steel rail polishing dropping particles are transmitted to a crystal analyzer unit 4, and analysis is conducted to guide the subsequent polishing work;
and S900, repeating the steps until finishing the polishing operation of the designated area.
According to the waste classifying and recycling system, the liquid collecting port 37 is arranged to follow the water jet polishing knife 21, so that the abrasive waste liquid generated by polishing can be collected to the greatest extent, the pollution of the abrasive waste liquid to the environment is avoided, and the waste liquid is beneficial to the recycling and classifying at the later stage; by arranging the centrifugal machine 33 and the conical filtering part 332 in the centrifugal machine, solid-liquid separation and primary screening of normal grinding materials can be rapidly realized; the normal abrasive is dehydrated and dried rapidly by the omnibearing heating of the normal abrasive through arranging a hot air pipe 342 at the top and a heating wire 341 at the bottom of the conveying belt 38; by providing the filter mesh on the conveyor belt 38 and the cam shaft 381 on the bottom thereof, the conveyor belt 38 can vibrate to rapidly screen out abnormal abrasive materials; the electromagnet sorter 39 is arranged at the top of the output end of the conveying belt 38 to adsorb the rail polishing dropping particles, so that normal abrasive materials are thoroughly separated to remove other impurities, and the rail polishing particles can be recycled and polished again. According to the waste classifying and recycling system, the recycling unit 3 can be used for rapidly separating and recycling the waste abrasive liquid generated by grinding, so that the problem of large-scale waste recycling of water jet steel rail grinding is solved; the whole recovery unit 3 occupies less space, is beneficial to being arranged on a railway car, can realize the recycling of the abrasive in the abrasive separation process, and greatly prolongs the working time of the high-pressure water jet rail polishing device.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The utility model provides a waste material classification recycling system of water jet rail grinding wagon, includes water jet rail grinding wagon (1) and locates water jet grinding unit (2) and recovery unit (3) on water jet rail grinding wagon (1), 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 (33), 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); 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 of an inverted conical structure; a driving motor (333) is arranged at the bottom of the centrifuge shell (331), a motor shaft (334) of the driving motor penetrates through the centrifuge shell (331) and the conical filtering part (332), and fan blades (335) are arranged at the top of the motor shaft (334); the conical filtering part (332) is provided with filtering meshes, so that particles smaller than the particle size of normal abrasive materials can be filtered out; the bottom of the conical filtering part (332) is provided with a normal abrasive discharge port which is connected with a second sediment pump (337) through a pipeline, and the second sediment pump (337) is used for pumping and transmitting the normal abrasive at the bottom of the conical filtering part (332) to the input end of the conveying belt (38); the bottom of the centrifuge shell (331) is provided with an abnormal abrasive discharge port which is connected with a third sediment pump (338) through a pipeline, and the third sediment pump (338) pumps and conveys the abnormal abrasive at the bottom of the centrifuge shell (331) into a waste storage box (35); the side edge of the cone bottom of the centrifuge shell (331) is provided with a waste liquid discharge outlet, and a filter screen (336) is arranged on the waste liquid discharge outlet and can prevent abnormal abrasive materials from being discharged together with waste liquid; the waste liquid discharge port is connected with a waste liquid storage box (36) through a pipeline, and a through-stop valve (361) is arranged on the connecting pipeline between the waste liquid discharge port and the waste liquid storage box; the liquid collecting port (37) is connected with the input end of the 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 end of the centrifugal machine (33) is connected with the output end of the abrasive waste liquid collecting box (32), the input end of the conveying belt (38) receives normal abrasive 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); the conveyor belt (38) is also provided with a screen mesh, the bottom of the conveyor belt is provided with a waste storage tank (351), abnormal abrasive materials screened out by the screen mesh fall into the waste storage tank (351) and normal abrasive materials meeting the specification particle size are reserved; the electromagnet sorting machine (39) adsorbs and separates the steel rail polishing dropping particles from normal abrasive materials, and conveys the steel rail polishing dropping particles to the crystal analyzer unit (4) through the swing arm for crystal phase analysis;
the grinding device is characterized in that the liquid collecting opening (37) is kept following with the water jet grinding knife (21), grinding material waste liquid generated after grinding the steel rail is sputtered into the liquid collecting opening (37), the grinding material waste liquid is sucked into the vacuum pump (31) and then is conveyed into the grinding material waste liquid collecting box (32), the grinding material waste liquid collecting box (32) inputs the grinding material waste liquid into the centrifugal machine (33) through a pipeline for solid-liquid separation, the separated waste liquid is discharged into the waste liquid storage box (36), abnormal grinding material enters the waste storage box (35), normal grinding material is conveyed onto the conveying belt (38), and the normal grinding material is dried through the drying mechanism (34) and is input into the grinding material tank (22) for recycling after the grinding material waste liquid is sucked by the electromagnet sorting machine (39).
2. The classified recycling system for the waste materials of the water jet rail grinding wagon of claim 1, wherein the drying mechanism (34) comprises a hot air pipe (342) and a heating wire (341) which are respectively arranged at the top of the conveying belt (38), the hot air pipe (342) is connected with a heat dissipation mechanism on the water jet rail grinding wagon (1), waste heat on the water jet rail grinding wagon (1) is recovered and then sent out through the hot air pipe (342), and normal grinding materials are dried.
3. A water jet rail grinding wagon waste sorting and recycling system according to claim 2, characterized in that the bottom of the conveyor belt (38) is provided with a cam shaft (381) which periodically hits the conveyor belt (38) during rotation, causing the conveyor belt (38) to vibrate.
4. A water jet rail grinding wagon waste sorting and recycling system according to any one of claims 1-3, wherein a liquid level sensor is further provided in the centrifuge 33.
5. A water jet rail grinding wagon waste sorting and recycling system according to claim 3, wherein the output end of the abrasive waste liquid collecting box (32) is connected with the input end of a first silt pump (321) in a pipeline manner, and the output end of the first silt pump (321) is connected with the input end of a centrifugal machine (33).
6. A method for classifying and recycling waste materials of a water jet rail grinding wagon, which is realized by using the system for classifying and recycling waste materials of the water jet rail grinding wagon according to claim 5, and comprises the following steps:
s100: the liquid collecting port (37) collects the waste liquid of the grinding materials, and the waste liquid of the grinding materials is sucked by the negative pressure generated by the vacuum pump (31) and then is transmitted to the waste liquid collecting box (32) of the grinding materials;
s200: the first sediment pump (321) is started, the suspension formed by mixing the abrasive waste liquid is conveyed into the centrifugal machine (33), and when the specified liquid level is reached, the first sediment pump (321) is closed, and the suspension is stopped being conveyed;
s300: the centrifuge (33) starts to perform solid-liquid separation, a stop valve (361) is opened, and the waste liquid is rapidly discharged into a waste liquid storage box (36) to obtain separated normal abrasive materials and abnormal abrasive materials;
s400: starting a second sediment pump (337) to pump and convey the supported abrasive at the bottom of the conical filtering part (332) to the conveying belt (38); starting a third sediment pump (338) to extract and convey abnormal abrasive materials at the bottom of the centrifuge shell (331) into a waste storage box (35);
s500: the hot air pipe (342) and the heating wire (341) are used for drying normal abrasive materials on the conveyor belt (38), and the cam shaft (381) impacts the conveyor belt (38) to vibrate so as to quickly 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: the normal abrasive enters the grinding material tank (22) for recycling;
s800: the steel rail polishing dropping particles are transmitted to a crystal analyzer unit (4) for analysis and guidance of subsequent polishing work;
and S900, repeating the steps until finishing the polishing operation of the designated area.
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| CN114750080B true CN114750080B (en) | 2023-05-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5489235A (en) * | 1993-09-13 | 1996-02-06 | Minnesota Mining And Manufacturing Company | Abrasive article and method of making same |
| US6161533A (en) * | 1996-10-01 | 2000-12-19 | Nippei Toyoma Corp. | Slurry managing system and slurry managing method |
| CN106541506B (en) * | 2016-10-27 | 2018-06-12 | 天津大学 | Laser crystal plasmaassisted lithography method |
| CN108166066A (en) * | 2017-12-25 | 2018-06-15 | 天津大学 | Laser crystal plasma modification etching auxiliary polishing processing method |
| CN109352536B (en) * | 2018-10-25 | 2019-12-31 | 长春理工大学 | Pulse type abrasive particle flow polishing device and method |
| CN110670012A (en) * | 2019-10-10 | 2020-01-10 | 淄博大亚金属科技股份有限公司 | Carburizing steel shot and production device thereof |
| CN110939026A (en) * | 2019-11-26 | 2020-03-31 | 中铁第四勘察设计院集团有限公司 | Magnetic suspension track beam |
| CN212553400U (en) * | 2020-08-07 | 2021-02-19 | 武汉大学 | Grinding device is united with pure water efflux to track superhigh pressure abrasive material efflux |
| CN112474350A (en) * | 2020-11-26 | 2021-03-12 | 宁海艾雅机械设备有限公司 | Automatic machine of retrieving screening and grading of shot-blasting machine abrasive material |
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