CN111469061B - Abrasive recovery system of low-temperature micro-abrasive gas jet machine tool - Google Patents
Abrasive recovery system of low-temperature micro-abrasive gas jet machine tool Download PDFInfo
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- CN111469061B CN111469061B CN202010353687.2A CN202010353687A CN111469061B CN 111469061 B CN111469061 B CN 111469061B CN 202010353687 A CN202010353687 A CN 202010353687A CN 111469061 B CN111469061 B CN 111469061B
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- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 239000002699 waste material Substances 0.000 claims abstract description 61
- 239000002245 particle Substances 0.000 claims abstract description 56
- 238000012545 processing Methods 0.000 claims abstract description 26
- 238000004064 recycling Methods 0.000 claims abstract description 17
- 238000004887 air purification Methods 0.000 claims abstract description 5
- 239000003082 abrasive agent Substances 0.000 claims description 34
- 239000000428 dust Substances 0.000 claims description 30
- 238000005520 cutting process Methods 0.000 claims description 20
- 230000005484 gravity Effects 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 12
- 238000005488 sandblasting Methods 0.000 claims description 11
- 239000013589 supplement Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 19
- 229920000642 polymer Polymers 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 description 10
- 238000003754 machining Methods 0.000 description 8
- 239000002861 polymer material Substances 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000009469 supplementation Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
A kind of low-temperature little abrasive air jet lathe abrasive recovery system, its characteristic is that it includes: a dry air generation part, a low-temperature jet generation part, a large-particle waste recovery part, an air purification part, a purified air recycling part and an abrasive recycling part; the invention not only can recycle the abrasive generated by the low-temperature micro-abrasive air jet machine tool when processing elastoplastic materials such as high polymer, but also can recycle the purified air, thereby being more economic and environment-friendly.
Description
Technical Field
The invention relates to an abrasive finish machining technology, in particular to a low-temperature abrasive finish machining technology, and specifically relates to an abrasive recovery system of a low-temperature micro-abrasive air jet machine tool.
Background
Abrasive gas jet machining is a novel micro-machining technology developed on the basis of the traditional sand blasting machining process. The abrasive gas jet processing is particularly suitable for local processing of high-hardness metal materials and high-brittleness non-metal materials, such as local processing of structural shapes of narrow grooves and the like on materials of silicon, germanium, glass, ceramics, quartz and the like.
Ceramic materials are not suitable in some applications due to their limitations. Such as lack of optical transparency of ceramic materials, and their limited biocompatibility, have limited application in biomedicine. Based on this, high molecular polymer materials have been used instead of ceramic materials.
Use abrasive material air jet to process high molecular polymer material at normal atmospheric temperature, because high molecular polymer material is mostly elastoplasticity, can take place the abrasive material embedding, cause machining efficiency extremely low. Researches show that abrasive gas jet processing is performed on the high polymer material at low temperature, the embedding of the abrasives is obviously reduced compared with that at normal temperature, and the processing efficiency is greatly improved. Based on the design, a low-temperature micro-abrasive air jet machine tool is designed. Whether the generated grinding materials can be efficiently recycled or not in the processing process determines the economical efficiency and the environmental protection property of the processing method.
Disclosure of Invention
The invention aims to solve the problems that alumina abrasive with uniform particle size distribution has high cost and needs to be recycled when being used for low-temperature jet, and designs an abrasive recycling system of a low-temperature micro-abrasive air jet machine tool.
The technical scheme of the invention is as follows:
a kind of low-temperature little abrasive air jet lathe abrasive recovery system, its characteristic is that it includes:
a dry air generating section: the dry air generating part comprises an air compressor 1, a pressure regulating valve 2, an air dryer 3 and an air storage tank 4, wherein a first air outlet of the air storage tank 4 is connected with a sand blasting machine 6, a second air outlet of the air storage tank 4 is connected with a cyclone separator 18, and the part can generate dry air flow with stable pressure;
a low-temperature jet generating section: the low-temperature jet flow generation part comprises an abrasive material cylinder 5, a sand blasting machine 6, an abrasive material through-stop valve 7, a cooler 8 and a jet flow nozzle 9, wherein the abrasive material cylinder 5 is installed on the sand blasting machine 6, the cooler 8 cools jet flow by using liquid nitrogen to generate low-temperature micro-abrasive material air jet flow, and elastoplastic materials such as high-molecular polymers and the like are ejected from the jet flow nozzle 9;
a large particle waste recovery section: the large-particle waste recovery part comprises a funnel 10, a coarse screen 12, a large-particle waste electromagnetic valve 13, a timer 14 and a large-particle waste collection box 15, wherein the coarse screen 12 is respectively arranged in the funnel 10 and the large-particle waste collection box 15, wherein the coarse screen 12 is installed in the hopper 10 in an inclined manner, the middle of the hopper 10 and the top of the large-granule waste collection box 15 are connected by a pipe, the large-particle waste electromagnetic valve 13 is arranged on the pipeline, the large-particle waste electromagnetic valve 13 is electrically connected with the timer 14, the bottom of the funnel 10 and the bottom of the large-particle waste collecting box 15 are also connected through the pipeline, the large-particle waste materials generated in the processing process are separated from the fine materials such as abrasive materials and cutting scraps by using a coarse screen 12, the separated materials such as the abrasive materials and the cutting scraps fall into a pipeline, and the materials enter a cyclone separator 18 through the air flow generated by a dry air generation part;
an air purifying section: the air purification part comprises a cyclone separator 18, an electrostatic dust collector 19 and an air seal machine 31, the cyclone separator 18 can separate materials such as abrasive materials and cuttings from dust suspended in the air, the air with the dust enters the electrostatic dust collector 19 after coming out of the cyclone separator 18, the air after being subjected to electrostatic adsorption and dust removal does not contain the dust any more, purification is realized, the separated materials such as the abrasive materials and the cuttings fall into an abrasive material recovery pipeline from the bottom of the cyclone separator 18, the air flow purified by the electrostatic dust collector 19 enters a gravity separator 23, and the air seal machine 31 is installed at the bottom of the cyclone separator 18 and can prevent the air flow in the pipeline from flowing back into the cyclone separator 18;
a purified air reusing portion: the purified air recycling part comprises a dry air through-stop valve 20, a fan 21 and an air guide hood 22, purified dry air flow from the air purifying part can directly enter a processing part of a machine tool, and the processing environment is dried by the fan 21 and the air guide hood 22 to prevent freezing in low-temperature processing, so that the purified air is recycled;
an abrasive recycling portion: the abrasive recycling part comprises a gravity separator 23, an abrasive separator 24, a fine screen 25, a chip collecting box 26, an abrasive collecting box 27, a fine abrasive collecting box 28, an abrasive supplementing electromagnetic valve 29 and an abrasive position sensor 30, wherein the gravity separator 23 is connected with the chip collecting box 26 through a pipeline, the fine screen 25 is obliquely arranged in the abrasive separator 24, the abrasive separator 24 is respectively connected with the gravity separator 23, the abrasive collecting box 27 and the fine abrasive collecting box 28 through pipelines, the abrasive collecting box 27 is connected with the abrasive cylinder 5 through a pipeline, the abrasive supplementing electromagnetic valve 29 is arranged on the pipeline, the abrasive supplementing electromagnetic valve 29 is electrically connected with the abrasive position sensor 30, the abrasive position sensor 30 is arranged on the abrasive cylinder 5, the gravity separator 23 separates the abrasive and the chips mixed in the abrasive through density difference, and the fine screen 25 in the abrasive separator 24 can further divide normal abrasive and the fine abrasive broken due to processing into fine abrasives And the separated normal abrasive can enter the abrasive collecting box 27 along the inclined fine screen 25, and then abrasive supplementation is carried out according to the amount of the residual abrasive in the abrasive cylinder 5, so that the recovery and the reutilization of the abrasive are realized.
And one-way valves 17 are respectively arranged at the bottom of the funnel 10 and the second air outlet of the air storage tank 4.
The bottoms of the funnel 10, the large particle waste collection box 15, the abrasive separator 24 and the abrasive collection box 27 are all designed in a conical shape.
The coarse screen 12 and the fine screen 25 are both provided with the vibration motor 11, and the vibration motor 11 can vibrate the screens, so that the screening efficiency is improved.
The timer 14 can control the large-particle waste electromagnetic valve 13 to be opened once every five minutes, so that the large-particle waste in the funnel 10 enters the large-particle waste collection box 15 along the inclined coarse screen 12, and the recovery of the large-particle waste is realized.
The large particle waste collecting box 15, the chip collecting box 26, the abrasive collecting box 27 and the fine abrasive collecting box 28 are all provided with a collecting box sensor 16, and when the collecting box is fully collected, the collecting box sensor 16 gives an alarm.
The cyclone 18 is suitable for separating particles with a diameter of 5 μm or more, so that the abrasive grain size recovery range of the abrasive grain recovery system is 5 μm or more.
The abrasive supplement solenoid valve 29 is controlled by the abrasive position sensor 30, when the amount of the abrasives in the abrasive cylinder 5 is less than a quarter, the abrasive position sensor 30 controls the abrasive supplement solenoid valve 29 to be opened to supplement the abrasives recovered in the abrasive collection box 27; when the abrasive in the abrasive cylinder 5 exceeds three quarters, the abrasive position sensor 30 will control the abrasive replenishment solenoid valve 29 to close, and the replenishment of the abrasive will be stopped.
The invention has the beneficial effects that:
the invention not only can recycle the abrasive generated by the low-temperature micro-abrasive air jet machine tool when processing elastoplastic materials such as high polymer, but also can recycle the purified air, and simultaneously reasonably processes other waste materials except the abrasive, so that the processing method is more economic and environment-friendly.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. an air compressor; 2. a pressure regulating valve; 3. an air dryer; 4. a gas storage tank; 5. a cylinder of abrasive material; 6. a sand blasting machine; 7. an abrasive pass-stop valve; 8. a cooler; 9. a jet nozzle; 10. a funnel; 11. a vibration motor; 12. coarse screening; 13. large-particle waste electromagnetic valves; 14. a timer; 15. a large particle waste collection box; 16. a collection box sensor; 17. a one-way valve; 18. a cyclone separator; 19. an electrostatic precipitator; 20. a dry air pass-stop valve; 21. a fan; 22. a gas guide hood; 23. a gravity separator; 24. an abrasive separator; 25. a fine screen; 26. a chip collecting box; 27. an abrasive material collecting box; 28. a fine abrasive collecting box; 29. an abrasive replenishing solenoid valve; 30. an abrasive position sensor; 31. an air seal machinery.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1.
A low-temperature micro-abrasive air jet machine abrasive recovery system comprises a dry air generation part, a low-temperature jet generation part, a large-particle waste recovery part, an air purification part, a purified air recycling part and an abrasive recycling part; the dry air generating part comprises: the air dryer comprises an air compressor 1, a pressure regulating valve 2, an air dryer 3 and an air storage tank 4, wherein the pressure regulating valve 2 is arranged on an air outlet pipe of the air compressor 1 to regulate the output pressure, so that the working requirement of the system is met; the input end of the air dryer 3 is connected with the output end of the air compressor 1, the output end of the air dryer 3 is connected with the air storage tank 4, the output of the air storage tank 4 is divided into two paths, one path is used as a power source and conveyed into the sand blasting machine 6, and the other path is conveyed into the cyclone separator 18 through the check valve and used as the power of the cyclone separator 18. The cryogenic jet generating section includes: the device comprises an abrasive cylinder 5, a sand blasting machine 6, an abrasive open-close valve 7, a cooler 8 and a jet nozzle 9; the abrasive drum 5 is intended to supply the blasting machine 6 with working abrasive, which is on the one hand in communication with the supply conduit for abrasive and on the other hand in communication with the recovered abrasive collection tank 27, and the system is automatically replenished when the amount of abrasive in the abrasive drum 5 is lower than the amount required for the work, preferably from the abrasive collection tank 27 and from the delivery conduit when the amount is not. The large-particle waste recycling part comprises: the large-particle waste collection and treatment device comprises a funnel 10, a coarse screen 12, a large-particle waste electromagnetic valve 13, a timer 14 and a large-particle waste collection box 15, wherein the coarse screen 12 is respectively installed in the funnel 10 and the large-particle waste collection box 15, the coarse screen 12 can be driven by a vibration motor 11 to vibrate, the coarse screen 12 is obliquely installed in the funnel 10, the middle part of the funnel 10 is connected with the top part of the large-particle waste collection box 15 through a pipeline, the large-particle waste electromagnetic valve 13 is installed on the pipeline, and the large-particle waste electromagnetic valve 13 is electrically connected with the timer 14; the bottom of the funnel 10 and the bottom of the large particle waste collecting box 15 are also connected through a pipeline, the large particle waste generated in the processing process is separated from the fine abrasive and the cuttings by the coarse screen 12, the separated fine abrasive and the cuttings drop in the pipeline, and the airflow generated by the drying air generation part enters the cyclone separator 18; the air purifying part comprises: the dust collector comprises a cyclone separator 18, an electrostatic dust collector 19 and an air seal machine 31, wherein the cyclone separator 18 can separate grinding materials and cutting scraps from dust suspended in air, the air with the dust comes out of the cyclone separator 18 and enters the electrostatic dust collector 19, the air subjected to electrostatic adsorption and dust removal does not contain dust any more, purification is realized, the separated grinding materials and cutting scraps fall into a grinding material recovery pipeline from the bottom of the cyclone separator 18, the air flow purified by the electrostatic dust collector 19 enters a gravity separator 23, and the air seal machine 31 is installed at the bottom of the cyclone separator 18 and can prevent the air flow in the pipeline from flowing back into the cyclone separator 18; the purified air reusing part comprises: the dry air circulation valve 20, the fan 21 and the air guide hood 22, the purified dry air flow from the air purification part can directly enter the processing part of the machine tool, the processing environment is dried by the fan 21 and the air guide hood 22 to prevent icing during low-temperature processing, and the purified air is recycled; the abrasive recycling part comprises: a gravity separator 23, an abrasive separator 24, a fine screen 25, a chip collecting box 26, an abrasive collecting box 27, a fine abrasive collecting box 28, an abrasive supplement solenoid valve 29, and an abrasive position sensor 30, wherein the gravity separator 23 is connected with the chip collecting box 26 through a pipe, the fine screen 25 is installed in the abrasive separator 24 in an inclined manner, the abrasive separator 24 is respectively connected with the gravity separator 23, the abrasive collecting box 27, and the fine abrasive collecting box 28 through pipes, the abrasive collecting box 27 is connected with the abrasive cylinder 5 through a pipe, the abrasive supplement solenoid valve 29 is installed on the pipe, the abrasive supplement solenoid valve 29 is electrically connected with the abrasive position sensor 30, the abrasive position sensor 30 is installed on the abrasive cylinder 5, the gravity separator 23 separates the abrasive and the chips mixed therein through density difference, the fine screen 25 in the abrasive separator 24 can further separate the normal abrasive and the fine abrasive broken due to the processing, the separated normal abrasive can enter the abrasive collecting box 27 along the inclined fine screen 25, and then abrasive supplementation is carried out according to the amount of the residual abrasive in the abrasive cylinder 5, so that the recovery and the reutilization of the abrasive are realized.
The working principle of the invention is as follows:
the low-temperature jet flow generation part generates low-temperature micro-abrasive gas jet flow, and the low-temperature micro-abrasive gas jet flow is ejected from the jet flow nozzle 9 to process elastoplastic materials such as high molecular polymers. The materials such as abrasive, cutting scraps and dust generated in the processing process fall on the coarse screen 12 in the funnel 10, the coarse screen 12 can separate large-particle waste materials from the materials such as the fine abrasive and the cutting scraps, the vibration motor 11 is installed on the coarse screen 12, and the screening efficiency is improved through vibration. The timer 14 can control the large granule waste electromagnetic valve 13 to open once every five minutes, let the large granule waste material enter into the large granule waste collecting box 15 along the coarse screen 12 that inclines, the abrasive material that has not screened out in the funnel 10 still probably is thoughtlessly mixed to the inside of the large granule waste material that enters into the large granule waste collecting box 15, so also install coarse screen 12 and vibrating motor 11 in the large granule waste collecting box 15 and carry out the secondary screening. The large particle waste collecting box 15, the chip collecting box 26, the abrasive collecting box 27 and the fine abrasive collecting box 28 are all provided with a collecting box sensor 16, and when the collecting box is full of collection, the collecting box sensor 16 gives an alarm. The grinding materials and some fine cuttings after primary and secondary screening can fall into a pipeline, air flow generated by a drying air generation part enters the cyclone separator 18, the cyclone separator 18 can separate the grinding materials, the cuttings and other substances from dust suspended in the air, the air with the dust enters the electrostatic dust collector 19 after coming out of the cyclone separator 18, the air subjected to electrostatic adsorption dust removal does not contain dust any more, the air can directly enter a machining part of a machine tool, the machining environment is dried through the fan 21 and the air guide cover 22 to prevent icing during low-temperature machining, and the purified air is recycled. The cyclone 18 is adapted to separate particles having a diameter of 5 μm or more, and chips having a diameter of 5 μm or less and abrasive particles having a particle size of 5 μm or less generated during the processing are introduced into the electrostatic precipitator 19 together with dust-laden air and electrostatically adsorbed for dust removal. The separated materials such as the abrasive, the cuttings and the like fall into an abrasive recovery pipeline from the bottom of the cyclone separator 18, the airflow purified by the electrostatic dust collector 19 enters the gravity separator 23, the gravity separator 23 separates the abrasive and the cuttings mixed in the airflow through density difference, the separated abrasive enters the abrasive separator 24, and the cuttings enter the cuttings collection box 26. The abrasive separator 24 is provided with a fine screen 25 and a vibration motor 11, and is capable of separating normal abrasives from the fine abrasives broken due to processing, the separated normal abrasives can enter an abrasive collection box 27 along the inclined fine screen 25, and the broken fine abrasives enter a fine abrasive collection box 28. An abrasive position sensor 30 is mounted on the abrasive cylinder 5, when the abrasive in the abrasive cylinder 5 is less than a quarter, the abrasive position sensor 30 controls the abrasive replenishing electromagnetic valve 29 to be opened, so that the abrasive recovered in the abrasive collecting box 27 is replenished; when the abrasive in the abrasive cylinder 5 exceeds three quarters, the abrasive position sensor 30 will control the abrasive replenishment solenoid valve 29 to close, and the replenishment of the abrasive will be stopped.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (9)
1. A kind of low-temperature little abrasive air jet lathe abrasive recovery system, its characteristic is that it includes:
a dry air generating section: the dry air generation part comprises an air compressor (1), a pressure regulating valve (2), an air dryer (3) and an air storage tank (4), wherein the air compressor (1) is connected with an input port of the air dryer (3) through the pressure regulating valve (2), an output port of the air dryer (3) is connected with an input port of the air storage tank (4), a first air outlet of the air storage tank (4) is connected with a sand blasting machine (6), and a second air outlet of the air storage tank is connected with a cyclone separator (18);
a low-temperature jet generating section: the low-temperature jet flow generation part comprises an abrasive cylinder (5), a sand blasting machine (6), an abrasive material through-stop valve (7), a cooler (8) and a jet flow nozzle (9), wherein the abrasive cylinder (5) is installed on the sand blasting machine (6), the abrasive material through-stop valve (7) and the cooler (8) are installed on an abrasive material conveying pipeline, the abrasive material through-stop valve (7) is installed close to the sand blasting machine (6) and is positioned outside the cooler (8), and the cooler (8) cools abrasive material jet flow in the conveying pipeline by using liquid nitrogen to generate low-temperature micro abrasive material air jet flow and eject the low-temperature micro abrasive material air jet flow from the jet flow nozzle (9) installed at the outlet end of the abrasive material conveying pipeline;
a large particle waste recovery section: the large-particle waste recycling part comprises a funnel (10), a coarse screen (12), a large-particle waste electromagnetic valve (13), a timer (14) and a large-particle waste collection box (15), wherein the coarse screen (12) is respectively arranged in the funnel (10) and the large-particle waste collection box (15), the coarse screen (12) is obliquely arranged in the funnel (10), the middle of the funnel (10) is connected with the top of the large-particle waste collection box (15) through a pipeline, the large-particle waste electromagnetic valve (13) is arranged on the pipeline, the large-particle waste electromagnetic valve (13) is electrically connected with the timer (14), the bottom of the funnel (10) is also connected with the bottom of the large-particle waste collection box (15) through a pipeline, the large-particle waste generated in the processing process is separated from fine abrasive and cutting scraps by using the coarse screen (12), and the separated fine abrasive, The cuttings fall into the duct and enter the cyclone (18) through an air flow generated by the drying air generating section;
an air purifying section: the air purification part comprises a cyclone separator (18), an electrostatic dust collector (19) and an air seal machine (31), the cyclone separator (18) can separate abrasive materials and cutting scraps from dust suspended in the air, the air with the dust enters the electrostatic dust collector (19) after coming out of the cyclone separator (18), the air after being subjected to electrostatic adsorption and dust removal does not contain dust any more, purification is realized, the separated abrasive materials and cutting scraps fall into an abrasive material recovery pipeline from the bottom of the cyclone separator (18), the air flow purified by the electrostatic dust collector (19) enters a gravity separator (23), and the air seal machine (31) is arranged at the bottom of the cyclone separator (18) and can prevent the air flow in the pipeline from flowing back into the cyclone separator (18);
a purified air reusing portion: the purified air recycling part comprises a dry air through-stop valve (20), a fan (21) and an air guide hood (22), purified dry air flow from the air purifying part can directly enter a processing part of the machine tool, and the processing environment is dried by the fan (21) and the air guide hood (22) to prevent icing during low-temperature processing, so that the purified air recycling is realized;
an abrasive recycling portion: the abrasive recycling part comprises a gravity separator (23), an abrasive separator (24), a fine screen (25), a chip collecting box (26), an abrasive collecting box (27), a fine abrasive collecting box (28), an abrasive supplementing electromagnetic valve (29) and an abrasive position sensor (30), wherein the gravity separator (23) is connected with the chip collecting box (26) through a pipeline, the fine screen (25) is obliquely arranged in the abrasive separator (24), the abrasive separator (24) is respectively connected with the gravity separator (23), the abrasive collecting box (27) and the fine abrasive collecting box (28) through pipelines, the abrasive collecting box (27) is connected with the abrasive cylinder (5) through a pipeline, the abrasive supplementing electromagnetic valve (29) is arranged on the pipeline, the abrasive supplementing electromagnetic valve (29) is electrically connected with the abrasive position sensor (30), and the abrasive position sensor (30) is arranged on the abrasive cylinder (5), the gravity separator (23) separates the abrasive from the chips mixed in the abrasive through density difference, a fine screen (25) in the abrasive separator (24) can further separate normal abrasive from the fine abrasive crushed due to processing, the separated normal abrasive can enter an abrasive collecting box (27) along the inclined fine screen (25), and then abrasive supplement is carried out according to the amount of the residual abrasive in the abrasive cylinder (5), so that the recovery and the reutilization of the abrasive are realized.
2. The abrasive recovery system of the low-temperature micro-abrasive gas-jet machine tool according to claim 1, wherein the bottom of the hopper (10) and the pipeline of the second air outlet of the air storage tank (4) are respectively provided with a one-way valve (17) to ensure the one-way flow of the air flow.
3. The abrasive recovery system of the cryogenic micro-abrasive gas jet machine tool according to claim 1, characterized in that the bottom of the hopper (10), the large particle waste collection box (15), the abrasive separator (24) and the abrasive collection box (27) are all designed in a cone shape.
4. The abrasive recovery system of the low-temperature micro-abrasive gas-jet machine tool according to claim 1, wherein the coarse screen (12) and the fine screen (25) are respectively provided with a vibration motor (11), and the vibration motors (11) can vibrate the screens so as to improve the screening efficiency.
5. The abrasive recycling system of claim 1, wherein the timer (14) controls the large particle waste solenoid valve (13) to open once every period of time, so that the large particle waste in the hopper (10) can enter the large particle waste collection box (15) along the inclined coarse screen (12) to recycle the large particle waste.
6. The abrasive recycling system of low-temperature micro-abrasive air-jet machine tool according to claim 1, characterized in that the coarse screen (12) in the large particle waste collection box (15) can perform secondary screening on the large particle waste entering into the large particle waste collection box (15).
7. The abrasive recovery system of the low-temperature micro-abrasive gas jet machine tool according to claim 1, wherein the large particle waste collection box (15), the chip collection box (26), the abrasive collection box (27) and the fine abrasive collection box (28) are all provided with a collection box sensor (16), and when the collection box is full, the collection box sensor (16) gives an alarm.
8. The cryogenic micro-abrasive gas jet machine tool abrasive recovery system of claim 1, wherein the cyclone separator (18) is adapted to separate particles having a diameter of 5 μm or more.
9. The abrasive recovery system of the low-temperature micro-abrasive gas jet machine tool according to claim 1, wherein the abrasive supplement solenoid valve (29) is controlled by an abrasive position sensor (30), when the abrasive in the abrasive drum (5) is less than a quarter, the abrasive position sensor (30) controls the abrasive supplement solenoid valve (29) to be opened to supplement the abrasive recovered in the abrasive collection box (27); when the abrasive in the abrasive drum (5) exceeds three quarters, the abrasive position sensor (30) controls the abrasive replenishing solenoid valve (29) to be closed, and abrasive replenishing is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353687.2A CN111469061B (en) | 2020-04-29 | 2020-04-29 | Abrasive recovery system of low-temperature micro-abrasive gas jet machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN112157597B (en) * | 2020-09-29 | 2022-04-08 | 南京航太机电有限公司 | Low-temperature nitrogen cooling focusing abrasive gas jet machining machine tool |
| CN112140003B (en) * | 2020-09-29 | 2022-04-08 | 南京航太机电有限公司 | Ultra-low temperature micro-abrasive air jet processing device for micro-processing of polymer |
| CN114434344B (en) * | 2022-01-12 | 2022-12-09 | 武汉大学 | High-pressure abrasive water jet steel rail grinding abrasive separation and cyclic utilization system |
| CN114633219B (en) * | 2022-02-21 | 2023-06-16 | 武汉大学 | Water jet steel rail polishing waste liquid separation and abrasive recycling system and method |
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| US5468174A (en) * | 1992-11-13 | 1995-11-21 | Ipec Advanced Systems, Inc. | Recyclable abrasive blasting system |
| JPH09295268A (en) * | 1996-05-07 | 1997-11-18 | Alps Eng:Kk | Blasting device |
| CN2661373Y (en) * | 2003-12-02 | 2004-12-08 | 王惠忠 | Environment-friendly type sandblasting machine with automatic screening, separating, circulating and reclaiming |
| CN106670983B (en) * | 2017-01-11 | 2018-07-13 | 南京航空航天大学 | A kind of low temperature abradant jet processing unit (plant) |
| CN206951553U (en) * | 2017-06-29 | 2018-02-02 | 上海运城制版有限公司 | Reciprocating sieve separator for the sandblasting circulatory system |
| CN207576687U (en) * | 2017-11-24 | 2018-07-06 | 无锡富岛科技股份有限公司 | Cyclone separator |
| CN108857911A (en) * | 2018-09-20 | 2018-11-23 | 南京苏格信息技术有限公司 | A kind of sand-blasting machine of recycling |
| CN109676538B (en) * | 2019-01-22 | 2021-03-16 | 南京航空航天大学 | Low-temperature micro-abrasive gas jet machining machine tool |
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