Lithium hexafluorophosphate recovery and dust removal device
By designing a lithium hexafluorophosphate recovery and dust removal device, which combines filter bag filtration and pulse blowing with a cleaning brush, the problem of light powder being sucked away was solved, achieving powder recovery and dust removal, and improving the exhaust gas treatment effect.
Patent Information
- Application Number
- CN202422281050.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During the drying process of lithium hexafluorophosphate, the light powder is drawn away by the exhaust gas absorption system, resulting in waste and pipeline adhesion, which affects the exhaust gas absorption effect.
A lithium hexafluorophosphate recovery and dust removal device was designed. It uses filter bags to filter powder in the exhaust gas and recovers the powder by combining pulse blowing and filter bag shaking with a cleaning brush to prevent clogging.
It achieves the recovery of lithium hexafluorophosphate and the effective removal of dust from exhaust gas, avoiding powder waste and pipeline adhesion, and improving the exhaust gas absorption effect.
Smart Images
Figure CN223747167U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to lithium hexafluorophosphate production technical field, concretely relates to a lithium hexafluorophosphate recovery dust collector. BACKGROUND
[0002] In the industrial production process of lithium hexafluorophosphate, the most stable and commonly used is to adopt wet preparation process, and the specific steps are roughly as follows: lithium fluoride powder is added into anhydrous hydrogen fluoride to form LiFHF solution of lithium fluoride, then phosphorus pentafluoride is introduced into the solution to produce LiPF6HF solution of dissolved lithium hexafluorophosphate, and then LiPF6HF solution is obtained by cooling crystallization, separation and drying to obtain lithium hexafluorophosphate crystals.
[0003] In the drying process of lithium hexafluorophosphate, the light powder is absorbed into the pipeline by the tail gas absorption system due to the agitation of the drying machine, which not only causes the waste of lithium hexafluorophosphate, but also causes the lithium hexafluorophosphate powder to stick to the pipeline for a long time, affecting the effect of tail gas absorption. UTILITY MODEL CONTENT
[0004] In order to solve the above technical problems, the utility model provides a lithium hexafluorophosphate recovery dust collector.
[0005] The technical scheme of the lithium hexafluorophosphate recovery dust collector of the utility model is:
[0006] The lithium hexafluorophosphate recovery dust collector comprises a shell, an air inlet pipe and an air outlet pipe located on the upper side of the air inlet pipe are arranged on the shell, a discharge pipe is arranged at the lower end of the shell, a stop valve is arranged on the discharge pipe, a mounting plate located between the air inlet pipe and the air outlet pipe is arranged in the shell in a guided and sealed sliding manner, a plurality of mounting holes are arranged on the mounting plate, filter bags are arranged in the mounting holes, a pulse blowing pipe is arranged on the upper side of the mounting plate in the shell, a pulse mechanism in communication with the pulse blowing pipe is arranged on the shell, a rotating shaft located on the upper side of the mounting plate is rotatably arranged in the shell, a driving motor driving the rotating shaft is arranged on the shell, an incomplete gear is arranged on the rotating shaft, a rack matched with the incomplete gear is arranged on the mounting plate, and a return spring is arranged between the shell and the mounting plate.
[0007] As a further improvement of the above technical scheme, the shell comprises a lower shell and an upper shell, a lower flange is arranged at the upper end of the lower shell, an upper flange is arranged at the lower end of the upper shell, the upper flange and the lower flange are fixedly connected through a bolt fixing piece, the air inlet pipe is arranged on the lower shell, and the air outlet pipe is arranged on the upper shell.
[0008] As a further improvement of the above technical solution, the lower body is provided with a plurality of pairs of parallel and spaced fixed plates, a guide rod is arranged between each pair of fixed plates, a guide hole matched with the guide rod is arranged on the mounting plate, and the reset spring is respectively sleeved on the guide rods on the upper and lower sides of the mounting plate, and the two ends of the reset spring are fixedly connected with the fixed plate and the mounting plate.
[0009] As a further improvement of the above technical solution, the pulse mechanism comprises a gas source, a pulse controller and an electromagnetic pulse valve, the outer wall of the lower shell is provided with a connecting plate, the gas source is fixedly connected to the connecting plate through a horse clamp, the gas source is connected with the pulse blowing pipe through a connecting pipe, the electromagnetic pulse valve is arranged on the connecting pipe, and the pulse controller is electrically connected with the electromagnetic pulse valve.
[0010] As a further improvement of the above technical solution, the lower end of the filter bag skeleton is rotatably installed with a turbine, the rotating shaft of the turbine is fixedly connected with a fixed frame, the fixed frame is fixedly connected with a cleaning brush in contact with the outer wall of the filter cloth of the filter bag, a plurality of air nozzles for blowing the turbine to rotate are arranged on the inner wall of the lower shell, an annular intermediate pipe in communication with each air nozzle is arranged on the outer wall of the lower shell, a jet pipe is connected to the gas source, the jet pipe is in communication with the intermediate pipe, and a control valve is arranged on the jet pipe.
[0011] As a further improvement of the above technical solution, the fixed frame is U-shaped, the horizontal section of the fixed frame is fixedly connected with the rotating shaft of the turbine at the center position, and the cleaning brush is fixed on the inner walls of the two vertical sections of the fixed frame.
[0012] The utility model provides a lithium hexafluorophosphate recycling dust collector, compared with prior art, its beneficial effect is:
[0013] The lithium hexafluorophosphate recycling dust collector uses, and the tail gas containing lithium hexafluorophosphate powder enters the shell through the air inlet pipe, is filtered from the air outlet pipe after filter bag, and the lithium hexafluorophosphate powder is filtered by the filter bag and remains on the filter bag surface.In order to recycle lithium hexafluorophosphate powder and avoid powder blockage, the pulse controller controls the electromagnetic pulse valve to act, and the filter bag is pulse type air blowing, and the lithium hexafluorophosphate powder adhered to the filter bag is blown off.In this process, the driving motor drives the mounting plate to move up and down, so that the filter bag shakes, and the lithium hexafluorophosphate powder adhered to the surface is shaken off.In addition, the air nozzle can also be jetted through the control valve, the air nozzle drives the turbine to rotate, the turbine drives the cleaning brush to rotate, and the lithium hexafluorophosphate powder adhered to the surface of the filter bag is swept off.The lithium hexafluorophosphate recycling dust collector can recycle lithium hexafluorophosphate on one hand, and can remove the dust in the tail gas on the other hand. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1This is a schematic diagram of the structure of the lithium hexafluorophosphate recovery and dust removal device of this utility model;
[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 yes Figure 1 Enlarged view of point B in the middle;
[0017] In the diagram: 1. Lower housing; 2. Upper housing; 3. Inlet pipe; 4. Outlet pipe; 5. Lower flange; 6. Upper flange; 7. Mounting plate; 8. Fixing plate; 9. Guide rod; 10. Return spring; 11. Drive motor; 12. Rotating shaft; 13. Incomplete gear; 14. Rack; 15. Filter bag; 16. Pulse blow pipe; 17. Connecting pipe; 18. Electromagnetic pulse valve; 19. Pulse controller; 20. Air source; 21. Saddle clamp; 22. Connecting plate; 23. Jet pipe; 24. Control valve; 25. Intermediate pipe; 26. Air nozzle; 27. Turbine; 28. Fixing frame; 29. Sweeping brush. Detailed Implementation
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0019] Specific embodiments of the lithium hexafluorophosphate recovery and dust removal device of this utility model are as follows: Figures 1 to 3 As shown, the device includes a housing, an air inlet pipe 3 and an air outlet pipe 4 located above the air inlet pipe 3, a discharge pipe at the lower end of the housing with a shut-off valve, a mounting plate 7 located between the air inlet pipe 3 and the air outlet pipe 4 and slidably mounted inside the housing, the mounting plate 7 having several mounting holes with filter bags 15 inside, a pulse purge pipe 16 located above the mounting plate 7 inside the housing, a pulse mechanism communicating with the pulse purge pipe 16, a rotating shaft 12 rotatably mounted above the mounting plate 7 inside the housing, a drive motor 11 driving the rotating shaft 12 on the housing, an incomplete gear 13 on the rotating shaft 12, a rack 14 matching the incomplete gear 13 on the mounting plate 7, and a return spring 10 between the housing and the mounting plate 7.
[0020] The housing includes a lower housing 1 and an upper housing 2. The upper end of the lower housing 1 is provided with a lower flange 5, and the lower end of the upper housing 2 is provided with an upper flange 6. The upper flange 6 and the lower flange 5 are fixedly connected by bolt fasteners. The air inlet pipe 3 is provided on the lower housing 1, and the air outlet pipe 4 is provided on the upper housing 2. The lower housing is provided with several pairs of parallel spaced fixing plates 8. A guide rod 9 is provided between each pair of fixing plates 8. The mounting plate 7 is provided with guide holes that match the guide rods 9. The guide rods 9 on the upper and lower sides of the mounting plate 7 are respectively fitted with return springs 10. The two ends of the return springs 10 are fixedly connected to the fixing plates 8 and the mounting plate 7 respectively.
[0021] The pulse mechanism comprises a gas source 20, a pulse controller 19 and an electromagnetic pulse valve 18, the outer wall of the lower shell 1 is provided with a connecting plate 22, the gas source 20 is fixedly connected to the connecting plate 22 through a horse saddle 21, the gas source 20 is connected with the pulse blowing pipe 16 through a connecting pipe 17, the electromagnetic pulse valve 18 is arranged on the connecting pipe 17, and the pulse controller 19 is electrically connected with the electromagnetic pulse valve 18. The lower end of the skeleton of the filter bag 15 is rotatably provided with a turbine 27, the rotating shaft 12 of the turbine 27 is fixedly connected with a fixing frame 28, the fixing frame 28 is fixedly connected with a cleaning brush 29 in contact with the outer wall of the filter cloth of the filter bag 15, and a plurality of air nozzles 26 for blowing the turbine 27 to rotate are arranged on the inner wall of the lower shell 1. The outer wall of the lower shell 1 is provided with a ring-shaped intermediate pipe 25 in communication with the air nozzles 26, the gas source 20 is connected with a jet pipe 23, the jet pipe 23 is in communication with the intermediate pipe 25, and the jet pipe 23 is provided with a control valve 24. The fixing frame 28 is in a U shape, the horizontal section of the fixing frame 28 is fixedly connected with the rotating shaft 12 of the turbine 27 at the center position, and the cleaning brush 29 is fixed to the inner walls of the two vertical sections of the fixing frame 28.
[0022] In use of the lithium hexafluorophosphate recycling and dust removing device, tail gas containing lithium hexafluorophosphate powder enters the shell through the air inlet pipe 3, is filtered through the filter bag 15 and is discharged from the air outlet pipe 4, the lithium hexafluorophosphate powder is filtered by the filter bag 15 and remains on the surface of the filter bag 15. In order to recycle the lithium hexafluorophosphate powder and avoid powder blockage, the pulse controller 19 controls the electromagnetic pulse valve 18 to act, pulse blowing is performed on the filter bag 15, and the lithium hexafluorophosphate powder adhered to the filter bag 15 is blown off. In this process, the driving motor 11 is started, the driving motor 11 drives the incomplete gear 13 to rotate, the incomplete gear 13 drives the mounting plate 7 to move upward when the incomplete gear 13 is engaged with the rack 14, the mounting plate 7 moves downward under the action of the return spring 10 when the incomplete gear 13 is not engaged with the rack 14, and thus the filter bag 15 is shaken and the lithium hexafluorophosphate powder adhered to the surface is shaken off. In addition, the air nozzles 26 can be made to spray air through the control valve 24, the air nozzles 26 drive the turbine 27 to rotate, the turbine 27 drives the cleaning brush 29 to rotate, and the lithium hexafluorophosphate powder adhered to the surface of the filter bag 15 is swept off. The lithium hexafluorophosphate recycling and dust removing device can recycle lithium hexafluorophosphate and remove dust in tail gas.
[0023] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A dust removal device for recovering lithium hexafluorophosphate, characterized by comprising: The shell is provided with an air inlet pipe and an air outlet pipe on the upper side of the air inlet pipe, the lower end of the shell is provided with a discharge pipe, the discharge pipe is provided with a stop valve, a mounting plate between the air inlet pipe and the air outlet pipe is slidingly assembled in the shell in a guided and sealed manner, a plurality of mounting holes are formed in the mounting plate, filter bags are arranged in the mounting holes, a pulse purge pipe is arranged on the upper side of the mounting plate in the shell, a pulse mechanism in communication with the pulse purge pipe is arranged on the shell, a rotating shaft on the upper side of the mounting plate is rotatably installed in the shell, a driving motor for driving the rotating shaft is arranged on the shell, an incomplete gear is arranged on the rotating shaft, a rack matched with the incomplete gear is arranged on the mounting plate, and a return spring is arranged between the shell and the mounting plate.
2. The lithium hexafluorophosphate recovery dedusting device according to claim 1, characterized in that, The shell comprises a lower shell and an upper shell, the upper end of the lower shell is provided with a lower flange, the lower end of the upper shell is provided with an upper flange, the upper flange and the lower flange are fixedly connected through a bolt fixing piece, the air inlet pipe is arranged on the lower shell, and the air outlet pipe is arranged on the upper shell.
3. The lithium hexafluorophosphate recovery dedusting device according to claim 2, characterized in that, A plurality of pairs of fixed plates arranged in parallel and at intervals are arranged in the lower shell, a guide rod is arranged between each pair of fixed plates, a guide hole matched with the guide rod is arranged on the mounting plate, and the return spring is sleeved on the guide rod on the upper and lower sides of the mounting plate, respectively, and the two ends of the return spring are fixedly connected with the fixed plate and the mounting plate, respectively.
4. The lithium hexafluorophosphate recovery dedusting device according to claim 3, characterized by The pulse mechanism comprises an air source, a pulse controller and an electromagnetic pulse valve, a connecting plate is arranged on the outer wall of the lower shell, the air source is fixedly connected to the connecting plate through a horse clamp, the air source is connected to the pulse purge pipe through a connecting pipe, the electromagnetic pulse valve is arranged on the connecting pipe, and the pulse controller is electrically connected to the electromagnetic pulse valve.
5. The lithium hexafluorophosphate recovery dedusting device according to claim 4, characterized in that, A turbine is rotatably installed at the lower end of the framework of the filter bag, a fixing frame is fixedly connected to the rotating shaft of the turbine, a cleaning brush in contact with the outer wall of the filter cloth of the filter bag is fixedly connected to the fixing frame, a plurality of air nozzles for blowing the turbine to rotate are arranged on the inner wall of the lower shell, an annular intermediate pipe in communication with the air nozzles is arranged on the outer wall of the lower shell, a jet pipe is connected to the air source, the jet pipe is in communication with the intermediate pipe, and a control valve is arranged on the jet pipe.
6. The lithium hexafluorophosphate recovery dedusting device according to claim 5, characterized in that, The fixing frame is U-shaped, the horizontal section of the fixing frame is fixedly connected to the rotating shaft of the turbine at the center position, and the cleaning brush is fixed to the inner walls of the two vertical sections of the fixing frame.