CN110919545A - Neodymium iron boron product grinds chamfer and concentrates solution feed system - Google Patents
Neodymium iron boron product grinds chamfer and concentrates solution feed system Download PDFInfo
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- CN110919545A CN110919545A CN201911322769.4A CN201911322769A CN110919545A CN 110919545 A CN110919545 A CN 110919545A CN 201911322769 A CN201911322769 A CN 201911322769A CN 110919545 A CN110919545 A CN 110919545A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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Abstract
The invention discloses a neodymium iron boron product grinding chamfer centralized liquid supply system which comprises a sedimentation tank, a clean water tank and a filter pressing system, wherein the filter pressing system comprises a filter press and a delivery pump, the delivery pump conveys grinding fluid in the sedimentation tank into the filter press, the filter press conveys the filtered grinding fluid into the clean water tank, the filter press stores impurities in the grinding fluid into a filter chamber of the filter press, a first water level monitoring system is arranged in the sedimentation tank, the first water level monitoring system controls the on-off of the delivery pump according to the water level in the sedimentation tank, a second water level monitoring system is arranged in the clean water tank, and the second water level monitoring system controls the on-off of the delivery pump according to the water level in the sedimentation tank. The invention solves the problem of grinding fluid sewage treatment, reduces the sewage treatment cost, realizes the unattended operation of a liquid supply system, and reduces the labor intensity and the labor cost.
Description
Technical Field
The invention relates to the technical field of neodymium iron boron magnet processing, in particular to a neodymium iron boron product grinding chamfer centralized liquid supply system.
Background
The neodymium iron boron product is a permanent magnetic material with hard and brittle mechanical properties. The neodymium iron boron product with the single weight less than 50 g generally needs to be grinded and chamfered before surface electroplating, so that the edge of the surface of the product becomes round and smooth, the bonding force of a subsequent electroplating coating is improved, and the phenomenon of bubbling of the coating during product transportation and packaging is prevented. The working principle of grinding the chamfer is as follows: the neodymium iron boron product, the grinding material and the grinding liquid in a certain ratio are filled into a chamfering grinding machine, the grinding machine vibrates or rolls and throws under specific amplitude and rated frequency, the grinding material and the product generate collision, rolling and trace grinding, and the edge deburring, chamfering and surface finishing processing of the neodymium iron boron product are realized.
The grinding fluid used in the grinding, rolling, polishing and chamfering process is disposable, and the grinding fluid after chamfering is discharged from the equipment and flows into the sedimentation tank through the trench. Because the grinding fluid carries a certain amount of grinding materials and solid particles, the grinding fluid belongs to industrial sewage, needs to be recycled and treated uniformly by an environment-friendly recycling unit, and has higher cost. The grinding materials and the magnetic mud are precipitated at the bottom of the tank, and operators need to enter the tank bottom periodically to carry out dredging and magnetic mud recovery. Because the sedimentation tank is a sealed space, the labor intensity of the operation at the bottom of the sedimentation tank is high, and potential safety hazards exist.
Disclosure of Invention
Aiming at the defects of the prior art, the neodymium iron boron product grinding chamfer centralized liquid supply system is provided, the problem of grinding liquid sewage treatment is solved, the sewage treatment cost is reduced, the unattended operation of the liquid supply system is realized, and the labor intensity and the labor cost are reduced.
In order to achieve the above object, the present invention provides the following technical solutions.
A concentrated liquid supply system for grinding and chamfering neodymium iron boron products comprises a sedimentation tank, a clean water tank and a filter pressing system, wherein grinding liquid discharged by a chamfering grinder flows into the sedimentation tank, the filter pressing system comprises a filter press and a delivery pump, the delivery pump delivers the grinding fluid in the sedimentation tank into the filter press, the filter press filters the grinding fluid, the filter press conveys the filtered grinding fluid to a clean water tank, the filter press stores impurities in the grinding fluid in a filtering chamber of the filter press, a first water level monitoring system for detecting the water level in the sedimentation tank is arranged in the sedimentation tank, the first water level monitoring system controls the on-off of the conveying path of the conveying pump according to the water level in the sedimentation tank, and a second water level monitoring system for detecting the water level in the clean water tank is arranged in the clean water tank, and the second water level monitoring system controls the on-off of the conveying path of the conveying pump according to the water level in the clean water tank.
The invention has the beneficial effects that: when the liquid supply system is used, the chamfer angle grinder discharges grinding fluid into the sedimentation tank, the conveying pump conveys the grinding fluid in the sedimentation tank to the filter press for filtering, the filter press conveys the filtered grinding fluid to the clean water tank, the filter press stores impurities in the grinding fluid into a filtering chamber of the filter press, the problem of grinding fluid sewage treatment is solved, the sewage treatment cost is reduced, in addition, the first water level monitoring system is arranged in the sedimentation tank, the second water level monitoring system is arranged in the clean water tank, when the water level in the sedimentation tank is lower than a threshold value, the filtering is finished, the first water level monitoring system controls the disconnection of the conveying path of the conveying pump, so that the conveying pump stops working, when the water level in the cleaning tank is higher than the threshold value, the second water level monitoring system controls the disconnection of the conveying path of the conveying pump, so that the conveying pump stops working, the grinding fluid in the clean water tank is prevented from overflowing, so that unattended operation of the liquid supply system is realized, and the labor intensity and the labor cost are reduced.
As an improvement of the invention, a plurality of stirrers for stirring the grinding fluid are arranged in the sedimentation tank. Through the improvement, the solid particles in the grinding fluid are in a churning suspension state, and the solid particles in the grinding fluid are prevented from being deposited in the sedimentation tank.
As an improvement of the invention, the device also comprises a trench, one end of the trench is positioned below the chamfer angle grinder, and the other end of the trench is communicated with the sedimentation tank.
As an improvement of the invention, a filter screen is arranged at the joint of the trench and the sedimentation tank. Through the improvement, impurities in the grinding fluid can be roughly filtered.
As an improvement of the present invention, the first water level monitoring system includes a first floating ball type water level controller and a first electric two-way valve, the first floating ball type water level controller is disposed in the sedimentation tank, the first electric two-way valve is located on a conveying path of the conveying pump, the first floating ball type water level controller sends a water level signal in the sedimentation tank to the first electric two-way valve, and the first electric two-way valve is activated or closed according to the water level signal to control on/off of the conveying path of the conveying pump.
As an improvement of the present invention, the second water level monitoring system includes a second floating ball type water level controller and a second electric two-way valve, the second floating ball type water level controller is disposed in the clean water tank, the second electric two-way valve is located on a conveying path of the conveying pump, the second floating ball type water level controller sends a water level signal in the clean water tank to the second electric two-way valve, and the second electric two-way valve is activated or closed according to the water level signal to control on/off of the conveying path of the conveying pump.
As an improvement of the invention, a self-sucking pump is also arranged at the clean water tank, the inlet of the self-sucking pump is communicated with the clean water tank, and the outlet of the self-sucking pump is communicated with the chamfer angle grinding machine. Through the improvement, the grinding fluid filtered in the clean water tank can be recycled.
As a refinement of the invention, the delivery path between the outlet of the self-priming pump and the chamfer grinder is provided with a shut-off valve. Through the improvement, the on-off between the self-sucking pump and the chamfering grinder is convenient to control.
As an improvement of the invention, a floating type water suction port is arranged in the clean water tank, the floating type water suction port is arranged on the grinding fluid in the clean water tank in a floating manner, a non-return bottom valve is arranged at the bottom of the floating type water suction port, and an inlet of the self-priming pump is connected with the floating type water suction port through a hose. By the above improvement, the self-priming pump can be prevented from sucking vacuum.
As an improvement of the invention, the outlet of the self-priming pump is provided with a pressure tank matched with the self-priming pump. Through the improvement, the frequent starting of the self-priming pump can be avoided.
The pneumatic diaphragm pump is connected with the air tank, so as to supply air to the pneumatic diaphragm pump, a three-way cock is arranged at the joint of the delivery pump and the air tank, the inlet of the three-way cock is communicated with the air tank, the first outlet and the second outlet of the three-way cock are both communicated with the pneumatic diaphragm pump, the first water level monitoring system and the second water level monitoring system both control the connection and disconnection between the first outlet of the three-way cock and the pneumatic diaphragm pump, and a manual valve is arranged between the second outlet of the three-way cock and the pneumatic diaphragm pump. Through the improvement, the manual control system and the automatic control system can be switched.
Drawings
Fig. 1 is a schematic diagram of the operation of the present invention.
Fig. 2 is a schematic view of the floating type water suction port of the present invention located in a clean water basin.
In the figure, 1, a sedimentation tank; 2. a clean water tank; 3. a filter press; 4. a delivery pump; 5. a stirrer; 6. a trench; 7. filtering with a screen; 8. a first floating ball type water level controller; 9. a first electrically powered two-way valve; 10. a second floating ball type water level controller; 11. a second electrically powered two-way valve; 12. a self-priming pump; 13. a pressure tank; 14. an air tank; 15. a three-way cock; 16. a manual valve; 17. a stop valve; 18. a chamfering grinder; 19. a floating water suction port; 20. a non-return bottom valve.
Detailed Description
The invention is further explained with reference to the drawings.
Referring to fig. 1, the neodymium iron boron product grinding chamfer centralized liquid supply system comprises a sedimentation tank 1, a clean water tank 2, a filter pressing system and a trench 6, wherein one end of the trench 6 is positioned below a chamfer grinding machine 18, the other end of the trench 6 is communicated with the sedimentation tank 1, the inclination of the trench 6 is 1:100, so that grinding liquid discharged by the chamfer grinding machine 18 can flow into the sedimentation tank 1 along the trench 6, a plurality of chamfer grinding machines 18 can be arranged on the trench 6, the grinding liquid discharged by the chamfer grinding machines 18 can flow into the sedimentation tank 1 through the trench 6, a filter screen 7 is arranged at the joint of the trench 6 and the sedimentation tank 1, the grinding liquid firstly passes through the filter screen 7 and then enters the sedimentation tank 1, and impurities in the grinding liquid can be coarsely filtered by the filter screen 7. And the filter screen 7 adopts a basket type filter screen 7, even if the filter screen 7 at the lower part of the basket filter screen 7 is blocked in use, the water level in the filter screen 7 is only slightly raised, and the grinding fluid can still be filtered by the filter screen 7 at the upper part of the basket.
The filter pressing system comprises a filter press 3 and a delivery pump 4, the delivery pump 4 conveys the grinding fluid in the sedimentation tank 1 into the filter press 3, the liquid supply system further comprises an air tank 14, the delivery pump 4 is a pneumatic diaphragm pump, the air tank 14 is connected with the pneumatic diaphragm pump so as to supply air to the pneumatic diaphragm pump, the filter press 3 filters the grinding fluid, the filter press 3 conveys the filtered grinding fluid to the clean water tank 2, the filter press 3 stores impurities in the grinding fluid in a filter chamber of the filter press 3, a first water level monitoring system for detecting the water level in the sedimentation tank 1 is arranged in the sedimentation tank 1, the first water level monitoring system controls the on-off of a control gas circuit of the delivery pump 4 according to the water level in the sedimentation tank 1, a second monitoring system for detecting the water level in the clean water tank 2 is arranged in the clean water tank 2, and the second water level monitoring system controls the on-off of the control gas circuit of the delivery pump 4 according to the water level in the clean water tank 2.
When the liquid supply system is used, the chamfer angle grinder 18 discharges grinding fluid into the sedimentation tank 1, the delivery pump 4 delivers the grinding fluid in the sedimentation tank 1 to the filter press 3 for filtration, the filter press 3 delivers the filtered grinding fluid to the clean water tank 2, the filter press 3 stores impurities in the grinding fluid in a filter chamber of the filter press 3, the problem of grinding fluid sewage treatment is solved, the sewage treatment cost is reduced, in addition, a first water level monitoring system is arranged in the sedimentation tank 1, a second water level monitoring system is arranged in the clean water tank 2, when the water level in the sedimentation tank 1 is lower than a threshold value, the filtration is finished, the first water level monitoring system controls the disconnection of a control gas circuit of the delivery pump 4, the delivery pump 4 stops working, when the water level in the clean water tank 2 is higher than the threshold value, the second water level monitoring system controls the disconnection of the control gas circuit of the delivery pump 4, the conveying pump 4 is stopped to prevent the grinding fluid in the clean water tank 22 from overflowing, so that the unattended operation of the liquid supply system is realized, and the labor intensity and the labor cost are reduced.
After impurities in the filtering chamber of the filter press 3 form a filter cake and the filter cake reaches a certain thickness and is filled in the whole plate frame, a worker only needs to loosen the hydraulic plunger of the filter press 3, open the plate frame of the filter press 3, discharge the filter cake and clean the filter cloth in the filter press 3, and the use is convenient.
Specifically, the first water level monitoring system comprises a first floating ball type water level controller 8 and a first electric two-way valve 9, the first floating ball type water level controller 8 is arranged in the sedimentation tank 1, the water level in the sedimentation tank 1 is detected through the position of the floating ball in the sedimentation tank 1, the first electric two-way valve 9 is positioned on a control air path of the delivery pump 4, the on-off of the delivery pump 4 is controlled through the first electric two-way valve 9, when the first electric two-way valve 9 is opened, the conveying pump 4 can convey the grinding fluid in the sedimentation tank 1 to the filter press machine 3, when the first electric two-way valve 9 is closed, the conveying pump 4 can not convey the grinding fluid in the sedimentation tank 1 to the filter press machine 3, the first floating ball type water level controller 8 sends a water level signal in the sedimentation tank 1 to the first electric two-way valve 9, and the first electric two-way valve 9 is started or closed according to the water level signal so as to control the on-off of the control air path of the conveying pump 4.
When the liquid level of the sedimentation tank 1 is lower than a threshold value, the first floating ball type water level controller 8 sends a detection signal to the first electric two-way valve 9, the first electric two-way valve 9 is closed, the conveying pump 4 stops working, when the liquid level of the sedimentation tank 1 is higher than the threshold value, the first floating ball type water level controller 8 sends the detection signal to the first electric two-way valve 9, the first electric two-way valve 9 is opened, and the conveying pump 4 starts working.
The second water level monitoring system comprises a second floating ball type water level controller 10 and a second electric two-way valve 11, the second floating ball type water level controller 10 is arranged in the clean water tank 2, the water level in the clean water tank 2 is detected through the position of the floating ball in the clean water tank 2, the second electric two-way valve 11 is positioned on a control air path of the delivery pump 4, when the second electric two-way valve 11 is opened, the conveying pump 4 can convey the grinding fluid in the sedimentation tank 1 to the filter press machine 3, when the second electric two-way valve 11 is closed, the delivery pump 4 can not deliver the grinding fluid in the sedimentation tank 1 to the filter press machine 3, the second floating ball type water level controller 10 sends the water level signal in the clean water tank 2 to the second electric two-way valve 11, therefore, the on-off of the pipeline is controlled through the second electric two-way valve 11, and the second electric two-way valve 11 is started or closed according to the water level signal so as to control the on-off of the control air passage of the conveying pump 4.
When the liquid level of the clean water tank 2 is higher than the threshold value, the second floating ball type water level controller 10 sends a detection signal to the second electric two-way valve 11, the second electric two-way valve 11 is closed, the conveying pump 4 stops working, when the liquid level of the clean water tank 22 is lower than the threshold value, the second floating ball type water level controller 10 sends the detection signal to the second electric two-way valve 11, the second electric two-way valve 11 is opened, and the conveying pump 4 starts working.
Through first water level monitored control system and second water level monitored control system, can automated inspection sedimentation tank 1 and the water yield in the clean water pond 2, control delivery pump 4's work to realize supply system's unmanned on duty, reduced intensity of labour and human cost.
As an improvement of the present invention, a plurality of stirrers 5 for stirring the grinding fluid are arranged in the sedimentation tank 1. In this embodiment, the sedimentation tank 1 is square, the number of the stirrers 5 is five, the five stirrers 5 are installed around and in the center of the sedimentation tank 1, and the chamfering liquid in the tank is continuously stirred by the stirrers 5, so that the solid particles in the grinding liquid are in a tumbling suspension state, and the solid particles in the grinding liquid are prevented from being deposited in the sedimentation tank 1.
As an improvement of the invention, a self-sucking pump 12 is further arranged at the clean water tank 2, an inlet of the self-sucking pump 12 is communicated with the clean water tank 2, and an outlet of the self-sucking pump 12 is communicated with a chamfer angle grinder 18. The filtered grinding fluid in the clean water tank 2 is conveyed to the chamfer grinding machine 18 again through the self-sucking pump 12, and the filtered grinding fluid in the clean water tank 2 can be reused. The delivery path between the export of self priming pump 12 and the chamfer grinds machine 18 is equipped with stop valve 17, pipeline and chamfer grind machine 18 are passed through in the export of self priming pump 12, stop valve 17 sets up on the pipeline, break-make between stop valve 17 control self priming pump 12 and the chamfer grind machine 18, when chamfer grind machine 18 needs the lapping liquid, stop valve 17 opens, carry the lapping liquid in clean water basin 2 to chamfer grind machine 18 department through self priming pump 12, when chamfer grind machine 18 does not need the lapping liquid, stop valve 17 closes. And a pressure tank 13 matched with the self-priming pump 12 is arranged at the outlet of the self-priming pump 12. The pressure tank 13 is used for storing energy, and the pressure relay is combined, so that frequent starting of the self-priming pump 12 can be avoided. In this embodiment, the self-priming pump 12 is adjusted to be started when the pressure of the outlet pipeline of the pressure tank 13 is less than or equal to 0.2Mpa, and stopped when the pressure is greater than or equal to 0.6 Mpa. The automatic control of the outlet pressure of the self-priming pump 12 is realized.
In addition, as shown in fig. 2, a floating water suction port 19 is arranged in the clean water tank 2, the floating water suction port 19 is arranged on the grinding fluid in the clean water tank 2 in a floating manner, the floating water suction port 19 comprises a hollow pipe, a metal floating ball and a triangular plate, the metal floating ball is arranged on the triangular plate, so that the floating water suction port 19 can float on the grinding fluid in the clean water tank 2, an inlet of the self-priming pump 12 is connected with the floating water suction port in the clean water tank 2 through a hose, the floating water suction port 19 floats on the grinding fluid in the clean water tank 2, and a check bottom valve 20 is arranged at the bottom of the hollow pipe of the floating water suction port 19, so that water is always arranged in an inlet pipeline of the self-priming pump.
As an improvement of the present invention, a three-way cock 15 is disposed between the delivery pump 4 and the air tank 14, an inlet of the three-way cock 15 is communicated with the air tank 14, a first outlet and a second outlet of the three-way cock 15 are both communicated with the pneumatic diaphragm pump, wherein the first electric two-way valve 9 and the second electric two-way valve 11 are disposed between the first outlet of the three-way cock 15 and the pneumatic diaphragm pump, and a manual valve 16 is disposed between the second outlet of the three-way cock 15 and the pneumatic diaphragm pump to switch a valve core of the three-way cock 15, so as to switch a manual control system and an automatic control system, thereby preventing the system from failing due to a failure of the automatic control system.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a neodymium iron boron product grinds chamfer and concentrates feed liquid system, includes sedimentation tank (1), clean water basin (2), filter-pressing system, chamfer grinding machine (18) exhaust lapping liquid flow in sedimentation tank (1), its characterized in that: the filter pressing system comprises a filter press (3) and a delivery pump (4), the delivery pump (4) delivers the grinding fluid in the sedimentation tank (1) to the filter press (3), the filter press (3) filters the grinding fluid, the filter press (3) conveys the filtered grinding fluid to the clean water tank (2), the filter press (3) stores impurities in the grinding fluid in a filter chamber of the filter press (3), a first water level monitoring system for detecting the water level in the sedimentation tank (1) is arranged in the sedimentation tank (1), the first water level monitoring system controls the on-off of the delivery pump (4) according to the water level in the sedimentation tank (1), a second water level monitoring system for detecting the water level in the clean water tank (2) is arranged in the clean water tank (2), and the second water level monitoring system controls the on-off of the delivery pump (4) according to the water level in the clean water tank (2).
2. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 1, characterized in that: and a plurality of stirrers (5) used for stirring the grinding fluid are arranged in the sedimentation tank (1).
3. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 1, characterized in that: the device is characterized by further comprising a trench (6), wherein one end of the trench (6) is located below the chamfering grinder (18), and the other end of the trench (6) is communicated with the sedimentation tank (1).
4. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 3, characterized in that: and a filter screen (7) is arranged at the joint of the trench (6) and the sedimentation tank (1).
5. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 1, characterized in that: the first water level monitoring system comprises a first floating ball type water level controller (8) and a first electric two-way valve (9), the first floating ball type water level controller (8) is arranged in the sedimentation tank (1), the first electric two-way valve (9) is located on a conveying path of the conveying pump (4), the first floating ball type water level controller (8) sends a water level signal in the sedimentation tank (1) to the first electric two-way valve (9), and the first electric two-way valve (9) is started or closed according to a water level signal to control the on-off of the conveying pump (4).
6. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 1, characterized in that: the second water level monitoring system comprises a second floating ball type water level controller (10) and a second electric two-way valve (11), the second floating ball type water level controller (10) is arranged in the clean water tank (2), the second electric two-way valve (11) is located on a conveying path of the conveying pump (4), the second floating ball type water level controller (10) sends a water level signal in the clean water tank (2) to the second electric two-way valve (11), and the second electric two-way valve (11) is started or closed according to the water level signal to control the on-off of the conveying pump (4).
7. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 1, characterized in that: still include self priming pump (12), the entry of self priming pump (12) communicate in clean water basin (2), the export of self priming pump (12) communicates in chamfer grinds machine (18).
8. The concentrated liquid supply system for grinding and chamfering neodymium iron boron products according to claim 7, wherein: be equipped with floating water sucking mouth (19) in clean water basin (2), floating water sucking mouth (19) float and set up on the grinding fluid in clean water basin (2), non return bottom valve (20) are installed to the bottom of floating water sucking mouth (19), the entry of self priming pump (12) passes through the hose and links to each other with floating water sucking mouth (19).
9. The concentrated liquid supply system for grinding and chamfering neodymium iron boron products according to claim 7, wherein: the exit of self priming pump (12) be equipped with self priming pump (12) complex overhead tank (13).
10. The neodymium iron boron product grinding chamfer centralized liquid supply system according to claim 1, characterized in that: the air tank (14) is connected with the pneumatic diaphragm pump so as to supply air to the pneumatic diaphragm pump, a three-way cock (15) is arranged at the joint of the delivery pump (4) and the air tank (14), an inlet of the three-way cock (15) is communicated with the air tank (14), a first outlet and a second outlet of the three-way cock (15) are communicated with the pneumatic diaphragm pump, the first water level monitoring system and the second water level monitoring system control on-off between the first outlet of the three-way cock (15) and the pneumatic diaphragm pump, and a manual valve (16) is arranged between the second outlet of the three-way cock (15) and the pneumatic diaphragm pump.
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CN109397101A (en) * | 2018-12-13 | 2019-03-01 | 宁波韵升磁体元件技术有限公司 | A kind of neodymium iron boron grinding central liquid supply system |
CN109970227A (en) * | 2019-04-17 | 2019-07-05 | 重庆市机电设计研究院 | A kind of waste water treatment system operating method |
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