Perovskite quantum dot spray dryer

Abstract

The utility model relates to the technical field of spray dryers, in particular to a perovskite quantum dot spray dryer which comprises a drying tank, a tank cover is arranged at the top end of the drying tank, an air heater is fixed on one side of the drying tank, a feeding pump is fixed at the top end of the tank cover, two exhaust valves are fixed on the tank cover, and telescopic pipes are fixed at the top ends of the two exhaust valves. A barrel body and two filter barrels are arranged on the side, away from the hot-air blower, of the drying tank, barrel covers are in threaded connection with the top ends of the two filter barrels, check rings are fixed in the two filter barrels, filter screens are arranged at the top ends of the two check rings, pressing rings are arranged at the top ends of the two filter screens, and a plurality of vertical rods are fixed to the top ends of the two pressing rings; exhaust pipes are fixed at the bottom ends of the two filter barrels, and the bottom ends of the two exhaust pipes extend into the barrel body; the filter screen can filter gas, the filtered gas with a certain temperature enters the barrel body through the exhaust pipe and heats water in the barrel body, and utilization of redundant gas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dryers, in particular to a perovskite quantum dot spray dryer. Background Art

[0002] Perovskite quantum dots are a new type of semiconductor material with excellent optoelectronic and optical properties. A spray dryer is required during the processing of perovskite quantum dots. A spray dryer is a device that can simultaneously perform drying and granulation. The pressure, flow rate, and nozzle size of the liquid pump can be adjusted according to process requirements to obtain the required spherical particles of a certain size ratio. When the perovskite quantum dot spray dryer is in use, the excess gas with a certain amount of heat in the perovskite quantum dot spray dryer is generally discharged directly into the air, which not only easily pollutes the environment, but also causes a waste of heat energy. Therefore, a perovskite quantum dot spray dryer is proposed to filter the excess gas and save energy. Utility Model Content

[0003] In response to the problems in the prior art, the utility model provides a perovskite quantum dot spray dryer.

[0004] The technical solution adopted by the utility model to solve the technical problem is a perovskite quantum dot spray dryer, comprising a drying tank, a discharge port is provided at the bottom end of the drying tank, a tank cover is provided at the top end of the drying tank, a hot air blower is fixed on one side of the drying tank, an exhaust pipe of the hot air blower extends into the drying tank, a feed pump is fixed on the top end of the tank cover, the output end of the feed pump extends into the tank cover and is fixed with a nozzle, two exhaust valves are fixed on the tank cover, and the top ends of the two exhaust valves are fixed with a telescopic tube, a barrel body and two filter barrels are provided on the side of the drying tank away from the hot air blower, and the two filter barrels are fixed on the top end of the drying tank. The top of the barrel is threadedly connected to the barrel cover, and a sealing ring is fixed in each of the two barrel covers. The end of one telescopic tube away from the exhaust valve extends into one of the filter barrels, and the end of the other telescopic tube away from the exhaust valve extends into the other filter barrel. A retaining ring is fixed in each of the two filter barrels, and the top of the two retaining rings is provided with a filter screen, and the top of the two filter screens is provided with a pressure ring. A plurality of vertical rods are fixed to the top of the two pressure rings, and the bottom ends of the two filter barrels are fixed with an exhaust pipe, and the bottom ends of the two exhaust pipes extend into the barrel body. A branch pipe and a drain valve are fixed to the side of the barrel body away from the drying tank.

[0005] By adopting the above technical solution, one of the exhaust valves is opened, and the excess gas in the drying tank enters the filter barrel through the exhaust valve and the telescopic tube. The filter can filter the gas. The filtered gas with a certain temperature enters the barrel body through the exhaust pipe and heats the water in the barrel body. The heated water can be used by opening the drain valve to realize the utilization of excess gas. When the filter needs to be cleaned or replaced, the exhaust valve next to the filter that needs to be cleaned or replaced is closed, and the other exhaust valve is opened. The barrel cover can be removed by rotating it, and the vertical rod, pressure ring and filter can be taken out to clean or replace the filter. Cleaning or replacing the filter does not affect the filtration of excess gas.

[0006] Specifically, hydraulic cylinders are fixed on both sides of the drying tank, connecting blocks are fixed on the piston rods of the two hydraulic cylinders, and the two connecting blocks are connected to the tank cover.

[0007] By adopting the above technical solution, the piston rods of the two hydraulic cylinders drive the two connecting blocks to move upward, and the tank cover moves upward accordingly, making it easier to open the tank cover and maintain the interior of the drying tank.

[0008] Specifically, a support plate is fixed on the side of the drying tank away from the hot air blower, and the two filter barrels are fixed on the top of the support plate.

[0009] By adopting the above technical solution and setting the support plate, the stability of the two filter barrels can be improved.

[0010] Specifically, handles are fixed on the top ends of the two barrel covers.

[0011] By adopting the above technical solution, the bucket cover can be conveniently taken in and out by holding the handle.

[0012] Specifically, both filter barrels are provided with observation windows, and both observation windows are provided with glass.

[0013] By adopting the above technical solution, the situation inside the filter barrel can be easily observed through the observation window and glass.

[0014] Specifically, an inspection port is provided at the top of the barrel body, and a baffle is provided in the inspection port.

[0015] By adopting the above technical solution, the baffle can prevent debris from falling into the barrel body, and the interior of the barrel body can be maintained through the inspection port by removing the baffle.

[0016] Beneficial effects of the utility model:

[0017] (1) The perovskite quantum dot spray dryer described in the present invention has one exhaust valve opened and the other exhaust valve closed. The excess gas in the drying tank enters the filter barrel through the exhaust valve and the telescopic tube. The filter can filter the gas. The filtered gas with a certain temperature enters the barrel body through the exhaust pipe and heats the water in the barrel body. The heated water can be used by opening the drain valve to realize the utilization of excess gas. When the filter needs to be cleaned or replaced, the exhaust valve next to the filter that needs to be cleaned or replaced is closed, and the other exhaust valve is opened. The barrel cover can be removed by rotating it, and the filter can be cleaned or replaced by taking out the vertical rod, the pressure ring and the filter. Cleaning or replacing the filter does not affect the filtration of excess gas.

[0018] (2) In the perovskite quantum dot spray dryer described in the present invention, the piston rods of the two hydraulic cylinders drive the two connecting blocks to move upward, and the tank cover moves upward accordingly, which facilitates the opening of the tank cover and the maintenance of the interior of the drying tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;

[0022] Figure 3 It is a cross-sectional view of the filter barrel of the present invention.

[0023] In the figure: 1. Drying tank; 2. Hydraulic cylinder; 3. Connecting block; 4. Hot air blower; 5. Tank cover; 6. Feed pump; 7. Barrel cover; 70. Handle; 8. Glass; 9. Filter barrel; 10. Support plate; 11. Exhaust pipe; 12. Baffle; 13. Barrel body; 14. Branch pipe; 15. Drain valve; 16. Exhaust valve; 17. Telescopic tube; 18. Sealing ring; 19. Vertical rod; 20. Pressure ring; 21. Filter screen; 22. Retaining ring. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In order to filter the exhaust gas and save energy, as an embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3As shown, a perovskite quantum dot spray dryer described in the present invention includes a drying tank 1, a discharge port is provided at the bottom end of the drying tank 1, a tank cover 5 is provided at the top end of the drying tank 1, a hot air blower 4 is fixed to one side of the drying tank 1 by bolts, and an exhaust pipe of the hot air blower 4 extends into the drying tank 1, a feed pump 6 is fixed to the top end of the tank cover 5 by bolts, the output end of the feed pump 6 extends into the tank cover 5 and is welded and fixed with a nozzle, two exhaust valves 16 are welded and fixed on the tank cover 5, and a telescopic tube 17 is welded and fixed to the top end of the two exhaust valves 16, a barrel body 13 and two filter barrels 9 are provided on the side of the drying tank 1 away from the hot air blower 4, and the top ends of the two filter barrels 9 are threadedly connected to the barrel cover 7, A sealing ring 18 is fixed to each of the two barrel covers 7 by adhesive, one of the telescopic tubes 17 extends into one of the filter barrels 9 away from the end of the exhaust valve 16, and the other telescopic tube 17 extends into the other filter barrel 9 away from the end of the exhaust valve 16. A retaining ring 22 is welded and fixed in each of the two filter barrels 9, and a filter screen 21 is provided at the top of each of the two retaining rings 22. A pressure ring 20 is provided at the top of each of the two filter screens 21. A plurality of vertical rods 19 are welded and fixed to the top of each of the two pressure rings 20. An exhaust pipe 11 is welded and fixed to the bottom end of each of the two filter barrels 9. The bottom ends of the two exhaust pipes 11 extend into the barrel body 13, and a branch pipe 14 and a drain valve 15 are welded and fixed to the side of the barrel body 13 away from the drying tank 1.

[0026] During use, open one of the exhaust valves and close the other exhaust valve. The perovskite quantum dots that need to be dried are introduced into the drying tank 1 through the feed pump 6. The hot air blower 4 sends hot air into the drying tank +1 to achieve the drying treatment of the perovskite quantum dots. The excess gas in the drying tank 1 enters the filter barrel 9 through the exhaust valve 16 and the telescopic tube 17. The filter 21 can filter the gas. The filtered gas with a certain temperature enters the barrel body 13 through the exhaust pipe 11 and heats the water in the barrel body 13. The heated water can be used by opening the drain valve 15 to realize the utilization of excess gas. When the filter 21 needs to be cleaned or replaced, close the exhaust valve 16 next to the filter 21 that needs to be cleaned or replaced, open the other exhaust valve 16, rotate the barrel cover 7 to remove the barrel cover 7, take out the vertical rod 19, the pressure ring 20 and the filter 21 to clean or replace the filter 21. Cleaning or replacing the filter 21 does not affect the filtration of excess gas.

[0027] In order to facilitate the opening of the tank cover 5, for example, Figure 1 As shown, hydraulic cylinders 2 are fixed to both sides of the drying tank 1 by bolts, connecting blocks 3 are fixed to the piston rods of the two hydraulic cylinders 2 by bolts, and the two connecting blocks 3 are welded to the tank cover 5.

[0028] When in use, the piston rods of the two hydraulic cylinders 2 drive the two connecting blocks 3 to move upward, and the tank cover 5 moves upward accordingly, which facilitates the opening of the tank cover 5 and the maintenance of the interior of the drying tank 1.

[0029] In order to improve the stability of the two filter barrels 9, for example, Figure 1 As shown, a support plate 10 is welded and fixed to the side of the drying tank 1 away from the hot air blower 4 , and the two filter barrels 9 are welded and fixed to the top of the support plate 10 .

[0030] In order to facilitate the taking and placing of the barrel cover 7, for example, Figure 2 As shown, handles 70 are welded and fixed to the top ends of the two barrel covers 7.

[0031] In order to facilitate the observation of the situation inside the filter barrel 9, for example, Figure 1 As shown, both filter barrels 9 are provided with observation windows, and both observation windows are provided with glass 8.

[0032] In order to facilitate the maintenance of the barrel 13, for example, Figure 1 As shown, an inspection port is provided at the top of the barrel body 13, and a baffle 12 is provided in the inspection port.

[0033] When the utility model is in use, one of the exhaust valves is opened and the other exhaust valve is closed. The perovskite quantum dots to be dried are introduced into the drying tank 1 through the feed pump 6. The hot air blower 4 sends hot air into the drying tank +1 to achieve the drying process of the perovskite quantum dots. The excess gas in the drying tank 1 enters the filter barrel 9 through the exhaust valve 16 and the telescopic tube 17. The filter screen 21 can filter the gas. The filtered gas with a certain temperature enters the barrel body 13 through the exhaust pipe 11 and heats the water in the barrel body 13. The heated water can be used by opening the drain valve 15, thereby realizing the utilization of the excess gas.

[0034] When the filter 21 needs to be cleaned or replaced, close the exhaust valve 16 next to the filter 21 that needs to be cleaned or replaced, open the other exhaust valve 16, rotate the barrel cover 7 to remove the barrel cover 7, take out the vertical rod 19, the pressure ring 20 and the filter 21, and then clean or replace the filter 21. Cleaning or replacing the filter 21 does not affect the filtration of excess gas.

[0035] The piston rods of the two hydraulic cylinders 2 drive the two connecting blocks 3 to move upward, and the tank cover 5 moves upward accordingly, which facilitates the opening of the tank cover 5 and the maintenance of the interior of the drying tank 1.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A perovskite quantum dot spray dryer, characterized in that: The drying tank (1) comprises a drying tank (1), wherein a discharge port is provided at the bottom end of the drying tank (1), a tank cover (5) is provided at the top end of the drying tank (1), a hot air blower (4) is fixed on one side of the drying tank (1), an exhaust pipe of the hot air blower (4) extends into the drying tank (1), a feed pump (6) is fixed on the top end of the tank cover (5), an output end of the feed pump (6) extends into the tank cover (5) and a nozzle is fixed thereon, two exhaust valves (16) are fixed on the tank cover (5), and a telescopic tube (17) is fixed at the top end of the two exhaust valves (16), a barrel body (13) and two filter barrels (9) are provided on the side of the drying tank (1) away from the hot air blower (4), the top ends of the two filter barrels (9) are threadedly connected to the barrel cover (7), and sealing rings are fixed in the two barrel covers (7) (18), the end of one telescopic tube (17) away from the exhaust valve (16) extends into one of the filter barrels (9), and the end of the other telescopic tube (17) away from the exhaust valve (16) extends into the other filter barrel (9), a retaining ring (22) is fixed in each of the two filter barrels (9), a filter screen (21) is provided at the top of each of the two retaining rings (22), a pressure ring (20) is provided at the top of each of the two filter screens (21), a plurality of vertical rods (19) are fixed at the top of each of the two pressure rings (20), an exhaust pipe (11) is fixed at the bottom of each of the two filter barrels (9), the bottom ends of the two exhaust pipes (11) extend into the barrel body (13), and a branch pipe (14) and a drain valve (15) are fixed on the side of the barrel body (13) away from the drying tank (1).

2. A perovskite quantum dot spray dryer according to claim 1, characterized in that: Hydraulic cylinders (2) are fixed on both sides of the drying tank (1), connecting blocks (3) are fixed on the piston rods of the two hydraulic cylinders (2), and the two connecting blocks (3) are connected to the tank cover (5).

3. A perovskite quantum dot spray dryer according to claim 1, characterized in that: A support plate (10) is fixed on the side of the drying tank (1) away from the hot air blower (4), and the two filter barrels (9) are both fixed on the top of the support plate (10).

4. A perovskite quantum dot spray dryer according to claim 1, characterized in that: A handle (70) is fixed to the top of each of the two barrel covers (7).

5. A perovskite quantum dot spray dryer according to claim 1, characterized in that: The two filter barrels (9) are both provided with observation windows, and glass (8) is provided in the two observation windows.

6. A perovskite quantum dot spray dryer according to claim 1, characterized in that: The top of the barrel body (13) is provided with an inspection opening, and a baffle (12) is provided inside the inspection opening.

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