A rapid molten salt device for high temperature salt tanks

Abstract

The utility model discloses a kind of for high-temperature salt tank's quick molten salt device, it is related to molten salt equipment technical field, including molten salt tank, the inside of molten salt tank is provided with molten salt tank, the inside rotationally connected of molten salt tank has stirring shaft.The beneficial effect of the utility model is as follows: the quick molten salt device for high-temperature salt tank, by the heat conduction fin of multiple groups of vertical welding in molten salt tank, it is favorable to increase the heating area of solid salt, improve heating effect, under the action of the pneumatic rod installed between multiple heat conduction fins, cooperate with the operation of air pump, nitrogen gas in nitrogen gas tank can be extracted into the annular gas groove of molten salt tank and the air cavity of multiple pneumatic rods, then be discharged to molten salt tank by multiple exhaust holes, a large number of bubbles are generated in high-temperature molten salt, molten salt is violently agitated, form powerful forced convection, and carry bottom high-temperature molten salt to move upwards, it is favorable to realize the rapid uniformity of temperature in whole tank body.

Description

Technical Field

[0001] This utility model relates to the field of molten salt equipment technology, specifically a rapid molten salt device for high-temperature salt tanks. Background Technology

[0002] Molten salt is a mixture of salts that is liquid at high temperatures. High-temperature salt baths are mainly used for heating and temperature control of molten salt. They achieve uniform temperature through mechanical stirring and have a precise temperature control system, making them suitable for fields such as chemical engineering, pharmaceuticals, and materials science.

[0003] Application No. 202422641747.7 discloses a rapid salt melting device for high-temperature salt tanks. By pre-storing salt blocks in a storage tank and conveying them downwards at a uniform speed by rotating propeller blades, the occurrence of blockage at the feed point is reduced. The rotation of the crushing rod can crush the salt blocks into granules, which facilitates melting. The rotation of the cylinder can intermittently convey the salt blocks downwards, avoiding excessive falling and poor crushing effect.

[0004] The small contact area between the inner wall of the furnace and the molten salt in the above-mentioned application can easily lead to uneven heating and affect the melting effect of solid salt. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a rapid salt melting device for high-temperature salt baths, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid salt melting device for a high-temperature salt bath, comprising a molten salt tank, an internal molten salt tank, a stirring shaft rotatably connected inside the molten salt tank, multiple stirring blades fixedly connected to corresponding sides of the stirring shaft, a heating plate installed on the inner wall of the molten salt tank and outside the molten salt tank, multiple vertically distributed heat-conducting fins welded inside the molten salt tank, each heat-conducting fin comprising multiple metal fins, and pneumatic rods rotatably connected inside the molten salt tank and between the heat-conducting fins. The pneumatic rod has an internal air chamber, and multiple exhaust holes are provided on both sides of the air chamber. An annular air groove is provided on the inner wall of the molten salt tank at the top of the molten salt tank. Multiple air guide pipes are fixedly connected to the bottom of the annular air groove, and one end of each air guide pipe is inserted into one of the multiple air chambers. A nitrogen tank is installed on one side of the molten salt tank, and an air pump is installed on the top of the nitrogen tank. An inlet pipe and an exhaust pipe are fixedly connected to the input and output ends of the air pump, respectively. One end of the inlet pipe is fixedly connected to the inside of the nitrogen tank, and one end of the exhaust pipe is fixedly connected to the annular air groove.

[0007] Preferably, a feed trough is provided inside the molten salt tank and at the top of the molten salt trough, and a feed inlet is provided inside the molten salt tank and at the top of the feed trough. A spiral conveying shaft is rotatably connected inside the feed trough, and spiral conveying blades are installed on the outside of the spiral conveying shaft. One end of the spiral conveying shaft is fixedly connected to a stirring shaft.

[0008] Preferably, a motor is installed on the top of the molten salt tank and on one side of the feed inlet, and the output end of the motor is fixedly connected to the screw conveyor shaft via a coupling.

[0009] Preferably, a pressure reducing valve and a check valve are installed on one side of the intake pipe and the exhaust pipe, respectively.

[0010] Preferably, the inner wall of the molten salt tank and the bottom of the molten salt tank are provided with a hollow groove. A first rotating shaft is rotatably connected inside the hollow groove. A plurality of second rotating shafts are rotatably connected inside the hollow groove and outside the plurality of first rotating shafts. A first gear is installed on the outside of the first rotating shaft. A second gear is installed on the outside of each of the plurality of second rotating shafts. The first gear meshes with the plurality of second gears. The first rotating shaft and the plurality of second rotating shafts are fixedly connected to a stirring shaft and a plurality of pneumatic rods, respectively.

[0011] Preferably, an inflation pipe and a discharge pipe are fixedly connected to one side of the nitrogen tank and the molten salt tank, respectively, and a valve is installed on one side of both the inflation pipe and the discharge pipe.

[0012] Preferably, a control panel is installed on the outer wall of the molten salt tank.

[0013] This invention provides a rapid salt melting device for high-temperature salt baths, which has the following advantages: 1. This rapid salt melting device for high-temperature salt baths utilizes multiple sets of vertically welded heat-conducting fins within the molten salt bath to increase the heating area of ​​the solid salt and improve the heating effect. Simultaneously, under the action of pneumatic rods installed between the multiple sets of heat-conducting fins, in conjunction with the operation of an air pump, nitrogen from the nitrogen tank can be drawn into the annular air groove of the molten salt bath and the air chambers of the multiple sets of pneumatic rods. The nitrogen is then discharged into the molten salt bath through multiple exhaust holes, generating a large number of bubbles in the high-temperature molten salt, violently agitating the molten salt, forming a powerful forced convection, and carrying the high-temperature molten salt from the bottom upwards, which helps to achieve rapid and uniform temperature throughout the entire bath.

[0014] 2. This rapid salt melting device for high-temperature salt baths uses the meshing of gear sets within the empty tank to drive the stirring shaft and multiple sets of pneumatic rods to rotate. The airflow then agitates the molten salt in all directions, which helps to increase the movement of the molten salt and avoid uneven distribution and heating of the molten salt between the heat-conducting fins. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This is a side view of the present invention.

[0016] In the diagram: 1. Molten salt tank; 2. Molten salt trough; 3. Stirring shaft; 4. Stirring blade; 5. Heating plate; 6. Heat-conducting fins; 7. Pneumatic rod; 8. Air chamber; 9. Exhaust port; 10. Annular air groove; 11. Air guide pipe; 12. Nitrogen tank; 13. Air pump; 14. Air inlet pipe; 15. Exhaust pipe; 16. Feed trough; 17. Feed inlet; 18. Screw conveyor shaft; 19. Motor; 20. Control panel; 21. Empty trough; 22. First rotating shaft; 23. Second rotating shaft; 24. First gear; 25. Second gear; 26. Air filling pipe; 27. Discharge pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figures 1 to 4 This utility model provides a technical solution: a rapid salt melting device for a high-temperature salt bath, comprising a molten salt tank 1, a molten salt tank 2 inside the molten salt tank 1, a stirring shaft 3 rotatably connected inside the molten salt tank 2 via a sealed bearing, and multiple stirring blades 4 fixedly connected to corresponding sides of the stirring shaft 3. A feed trough 16 is provided inside the molten salt tank 1 and at the top of the molten salt tank 2, and a feed inlet 17 is provided inside the molten salt tank 1 and at the top of the feed trough 16. A spiral conveying shaft 18 is rotatably connected inside the feed trough 16, and spiral conveying blades are installed on the outer side of the spiral conveying shaft 18 to facilitate uniform conveying of falling solid salt and avoid blockage. One end of the spiral conveying shaft 18 is fixedly connected to the stirring shaft 3. A motor 19 is installed on the top of the salt tank 1 and on one side of the feed inlet 17. The output end of the motor 19 is fixedly connected to the screw conveyor shaft 18 via a coupling, providing power for the rotation of the screw conveyor shaft 18 and the stirring shaft 3, so that the stirring shaft 3 drives multiple stirring blades 4 to stir the molten salt. A heating plate 5 is installed on the inner wall of the molten salt tank 1 and on the outer side of the molten salt tank 2. Multiple vertically distributed heat-conducting fins 6 are welded inside the molten salt tank 2. Each heat-conducting fin 6 includes multiple metal fins, which, in conjunction with the heating plate 5, increase the heating area of ​​the solid salt and improve the heating effect. Pneumatic rods 7 are rotatably connected inside the molten salt tank 2 and between the multiple heat-conducting fins 6. Air chambers 8 are opened inside the pneumatic rods 7, and multiple exhaust holes 9 are opened on both sides of the air chambers 8. An annular air groove 10 is opened on the inner wall of the molten salt tank 1 and at the top of the molten salt tank 2. Multiple air guide pipes 11 are fixedly connected to the bottom of the annular air groove 10, and one end of each air guide pipe 11 is inserted into one of the air chambers 8. A nitrogen tank 12 is installed on one side of the molten salt tank 1, and an air pump 13 is installed on the top of the nitrogen tank 12. The input and output ends of the air pump 13 are... An inlet pipe 14 and an outlet pipe 15 are fixedly connected to the nitrogen tank 12. One end of the inlet pipe 14 is fixedly connected to the inside of the nitrogen tank 12, and one end of the outlet pipe 15 is fixedly connected to the annular gas groove 10. Under the action of the air pump 13, nitrogen in the nitrogen tank 12 is drawn into the annular gas groove 10 and the gas chambers 8 of the multiple pneumatic rods 7, and discharged through multiple outlet holes 9. A large number of bubbles are generated in the high-temperature molten salt, which violently agitates the molten salt, forming a strong forced convection and carrying the high-temperature molten salt at the bottom upwards. This helps to achieve rapid and uniform temperature throughout the tank. A pressure reducing valve and a check valve are respectively installed on one side of the inlet pipe 14 and the outlet pipe 15 to ensure the safety of the nitrogen tank 12 and prevent the molten salt from flowing back into the outlet pipe 15 when the gas supply is stopped. An air filling pipe 26 and a discharge pipe 27 are fixedly connected to one side of the nitrogen tank 12 and the molten salt tank 2, respectively. Valves are installed on one side of both the air filling pipe 26 and the discharge pipe 27. A slot 21 is provided on the inner wall of the molten salt tank 1 and at the bottom of the molten salt tank 2. A first rotating shaft 22 is rotatably connected to the inside of the slot 21 via bearings. A plurality of second rotating shafts 23 are rotatably connected to the inside of the slot 21 and on the outside of the plurality of first rotating shafts 22 via bearings. A first gear 24 is installed on the outside of the first rotating shaft 22, and a second gear 25 is installed on the outside of the plurality of second rotating shafts 23. The first gear 24 meshes with the plurality of second gears 25. The first rotating shaft 22 and the plurality of second rotating shafts 23 are fixedly connected to the stirring shaft 3 and the plurality of pneumatic rods 7, respectively. Through the meshing of the first gear 24 with the plurality of second gears 25, the stirring shaft 3 and the plurality of pneumatic rods 7 are driven. The plurality of pneumatic rods 7 rotate with the rotation of the stirring shaft 3, so that the airflow can agitate the molten salt in all directions. A control panel 20 is installed on the outer wall of the molten salt tank 1.

[0019] In summary, this rapid salt melting device for high-temperature salt baths operates by feeding solid salt into the feed trough 16 through the feed inlet 17. The motor 19 drives the screw conveyor shaft 18 and the stirring shaft 3 to rotate, conveying the solid salt to the molten salt tank 2 within the molten salt tank 1. Simultaneously, the stirring shaft 3 drives the stirring blades 4 to stir the salt. The heating plate 5 heats the molten salt tank 2 and multiple heat-conducting fins 6, melting the salt. The air pump 13 draws nitrogen from the nitrogen tank 12 into the annular gas trough 10 within the molten salt tank 1 through the exhaust pipe 15, and then discharges it through multiple gas guide pipes 11. The air is discharged through the exhaust port 9 into the air chamber 8 inside the pneumatic rod 7 between the heat-conducting fins 6, generating a large number of bubbles in the high-temperature molten salt and violently agitating it. Since the first rotating shaft 22 and multiple second rotating shafts 23 in the empty tank 21 are fixedly connected to the stirring shaft 3 and multiple pneumatic rods 7 respectively, the first gear 24 on the outside of the first rotating shaft 22 meshes with the second gear 25 on the outside of the multiple second rotating shafts 23 respectively. Therefore, the stirring shaft 3 and multiple pneumatic rods 7 are driven, and the multiple pneumatic rods 7 rotate with the rotation of the stirring shaft 3, causing the airflow to drive the molten salt to agitate in all directions.

[0020] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or screw is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rapid salt melting device for high-temperature salt baths, comprising a molten salt tank (1), characterized in that: The molten salt tank (1) has a molten salt tank (2) inside. A stirring shaft (3) is rotatably connected inside the molten salt tank (2). Multiple stirring blades (4) are fixedly connected to the two sides of the stirring shaft (3). A heating plate (5) is installed on the inner wall of the molten salt tank (1) and on the outer side of the molten salt tank (2). Multiple vertically distributed heat-conducting fins (6) are welded inside the molten salt tank (2). Each heat-conducting fin (6) includes multiple metal fins. A pneumatic rod (7) is rotatably connected inside the molten salt tank (2) and between the multiple heat-conducting fins (6). An air chamber (8) is opened inside the pneumatic rod (7) and on the two sides of the air chamber (8) are... Multiple exhaust holes (9) are provided. An annular gas groove (10) is provided on the inner wall of the molten salt tank (1) and at the top of the molten salt tank (2). Multiple gas guide pipes (11) are fixedly connected to the bottom of the annular gas groove (10). One end of the multiple gas guide pipes (11) is inserted into multiple gas chambers (8). A nitrogen tank (12) is installed on one side of the molten salt tank (1). A gas pump (13) is installed on the top of the nitrogen tank (12). An air inlet pipe (14) and an exhaust pipe (15) are fixedly connected to the input end and the output end of the gas pump (13). One end of the air inlet pipe (14) is fixedly connected to the inside of the nitrogen tank (12), and one end of the exhaust pipe (15) is fixedly connected to the annular gas groove (10).

2. The rapid salt melting device for a high-temperature salt bath according to claim 1, characterized in that: A feed trough (16) is provided inside the molten salt tank (1) and at the top of the molten salt tank (2). A feed inlet (17) is provided inside the molten salt tank (1) and at the top of the feed trough (16). A spiral conveying shaft (18) is rotatably connected inside the feed trough (16). Spiral conveying blades are installed on the outside of the spiral conveying shaft (18). One end of the spiral conveying shaft (18) is fixedly connected to the stirring shaft (3).

3. The rapid salt melting device for a high-temperature salt bath according to claim 2, characterized in that: A motor (19) is installed on the top of the molten salt tank (1) and on one side of the feed inlet (17). The output end of the motor (19) is fixedly connected to the screw conveyor shaft (18) via a coupling.

4. The rapid salt melting device for a high-temperature salt bath according to claim 1, characterized in that: A pressure reducing valve and a check valve are respectively installed on one side of the intake pipe (14) and the exhaust pipe (15).

5. A rapid salt melting device for a high-temperature salt bath according to claim 1, characterized in that: The inner wall of the molten salt tank (1) and the bottom of the molten salt tank (2) are provided with a slot (21). The slot (21) is rotatably connected to a first rotating shaft (22). The slot (21) is rotatably connected to a plurality of second rotating shafts (23) on the outside of the plurality of first rotating shafts (22). A first gear (24) is installed on the outside of the first rotating shaft (22). A second gear (25) is installed on the outside of the plurality of second rotating shafts (23). The first gear (24) meshes with the plurality of second gears (25). The first rotating shaft (22) and the plurality of second rotating shafts (23) are fixedly connected to the stirring shaft (3) and the plurality of pneumatic rods (7) respectively.

6. The rapid salt melting device for a high-temperature salt bath according to claim 1, characterized in that: The nitrogen tank (12) and the molten salt tank (2) are respectively fixedly connected to one side of an air filling pipe (26) and a discharge pipe (27), and valves are installed on one side of both the air filling pipe (26) and the discharge pipe (27).

7. A rapid salt melting device for a high-temperature salt bath according to claim 1, characterized in that: A control panel (20) is installed on the outer wall of the molten salt tank (1).

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