Drying mechanism for lithium aluminum hydride production
By combining a circulating hot air blower and a stirring column, the problems of uneven drying and quality change of lithium aluminum hydride were solved, achieving a uniform and rapid drying process and improving the quality of the finished product.
Patent Information
- Application Number
- CN202520283152.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In existing lithium aluminum hydride drying processes, the heat transfer rate is slow, resulting in uneven drying. Prolonged drying stagnation can easily cause changes in the properties of the surface lithium aluminum hydride, reducing the quality of the finished product.
The lithium aluminum hydride is heated by a circulating hot air blower and agitated by a stirring column. Combined with a dehumidification mechanism, the air in the drying chamber is kept dry to prevent condensation of hot and humid air and achieve uniform drying of the lithium aluminum hydride.
It accelerates the drying speed of lithium aluminum hydride, avoids the qualitative change caused by long-term accumulation of lithium aluminum hydride, and improves the quality of finished products.
Smart Images
Figure CN223826688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical product drying technology, and in particular to a drying mechanism for the production of lithium aluminum hydride. Background Technology
[0002] Lithium aluminum hydride is an inorganic compound, mainly used as a carbonyl reagent and reducing agent. It is metastable at room temperature. During long-term storage, its properties change. In the chemical industry, lithium aluminum hydride is generally prepared by reacting lithium aluminum hydride with aluminum tribromide in an ether solution, followed by a drying process to obtain solid lithium aluminum hydride.
[0003] The existing process for drying lithium aluminum hydride basically involves transferring the lithium aluminum hydride into a drying chamber and drying it by heating air. Because the lithium aluminum hydride is piled up, the heat transfer to the interior of the lithium aluminum hydride is slow, resulting in uneven drying. At the same time, prolonged drying can easily cause changes in the properties of the lithium aluminum hydride on the surface, reducing the quality of the finished product. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a drying mechanism for lithium aluminum hydride production, which aims to improve the existing drying process, which fails to disperse the lithium aluminum hydride during drying, resulting in uneven drying and easy deterioration of the surface lithium aluminum hydride.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A drying mechanism for lithium aluminum hydride production includes a cabinet with a door on the front side. A feeding hopper is fixedly connected to the top of the cabinet. A drying chamber is opened inside the cabinet, with a feeding inlet between the feeding hopper and the drying chamber. A discharge outlet is opened at the bottom of the drying chamber, and a collection chamber is located at the bottom of the discharge outlet. A circulating hot air fan is installed on the right side of the cabinet, with a hot air pipe fixedly connected to the top of the circulating hot air fan and an air inlet pipe fixedly connected to the right side of the circulating hot air fan. A motor is fixedly connected to the left side of the cabinet, with a rotating shaft fixedly installed at the output end of the motor. Fixed columns are rotatably connected to both ends of the rotating shaft, and a stirring column is fixedly connected to the middle of the rotating shaft. A dehumidification mechanism is installed on the left side of the drying chamber for dehumidifying the drying chamber.
[0007] Preferably, the dehumidification mechanism includes an air outlet pipe, the top end of which is rotatably connected to the left side of the drying chamber, the bottom end of which is rotatably connected to a hot air exchanger, the top of which is fixedly connected to an air inlet pipe, a filter column fixedly connected to the top end of the air inlet pipe and the top end of the air outlet pipe, and a breathable plate fixedly connected to the top end of the filter column.
[0008] Preferably, the bottom surface of the filter column is in contact with the left side surface of the collection chamber.
[0009] Preferably, the rotating shaft passes through and extends to the inner wall of the right side of the cabinet, and the fixing column is fixedly connected to the cabinet.
[0010] Preferably, the bottom surface of the motor is in contact with the top surface of the hot air exchanger.
[0011] Preferably, one end of the hot air duct extends through and to the inner wall of the right side of the drying chamber.
[0012] Preferably, the surface of the stirring column is in contact with the inner wall of the drying chamber.
[0013] Preferably, a material trough plug is provided at the top of the feed hopper, and the surface of the material trough plug is in contact with the inner wall of the top of the feed hopper.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by starting the circulating hot air blower, lithium aluminum hydride enters the drying chamber through the feed hopper. The circulating hot air blower delivers heated air into the drying chamber through the hot air pipe. At the same time, the motor starts, and the rotating shaft drives the stirring column to rotate. The fan blades on the stirring column continuously tumble and disperse the lithium aluminum hydride in the drying chamber, so that the lithium aluminum hydride is heated evenly. After the lithium aluminum hydride is dried, it falls naturally into the collection chamber through the discharge port. Thus, the lithium aluminum hydride is continuously tumbled and dispersed during the drying process, so as to achieve uniform drying, accelerate the drying speed of lithium aluminum hydride, and avoid the quality change that may occur when lithium aluminum hydride is piled up for a long time during drying, which would affect the quality of the finished product.
[0016] 2. In this utility model, the hot air exchanger is activated, and air from the collection chamber is drawn in through the air inlet pipe. Dry air is then sent into the collection chamber through the air outlet pipe. The filter columns and permeable plates set at the front end of the air inlet and air outlet pipes prevent lithium aluminum hydride from entering the pipeline and causing a reduction in output. This achieves the goal of keeping the air in the drying chamber dry and avoiding the condensation of water vapor on the inner wall of the feed inlet, which would affect the lithium aluminum hydride raw material. Attached Figure Description
[0017] Figure 1 This is a front view of a drying mechanism for lithium aluminum hydride production proposed in this utility model;
[0018] Figure 2 This is a cross-sectional view of a drying mechanism for lithium aluminum hydride production proposed in this utility model.
[0019] Figure 3 This is a three-dimensional schematic diagram of the stirring mechanism of a drying mechanism for lithium aluminum hydride production proposed in this utility model.
[0020] Figure 4This is a three-dimensional schematic diagram of the dehumidification mechanism of a drying mechanism for lithium aluminum hydride production proposed in this utility model.
[0021] Legend:
[0022] 1. Cabinet body; 2. Feed hopper; 3. Collection chamber; 4. Drying chamber; 5. Stirring column; 6. Rotating shaft; 7. Hot air duct; 8. Cabinet door; 9. Circulating hot air blower; 10. Motor; 11. Discharge port; 12. Feed port; 13. Fixed column; 14. Material trough plug; 15. Hot air exchanger; 16. Air inlet pipe; 17. Air outlet pipe; 18. Filter column; 19. Air inlet pipe; 20. Ventilation plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1-4 The cabinet 1 has a cabinet door 8 on the front side, a feeding hopper 2 fixedly connected to the top of the cabinet 1, a drying chamber 4 inside the cabinet 1, a feeding port 12 between the feeding hopper 2 and the drying chamber 4, a discharge port 11 at the bottom of the drying chamber 4, a collection chamber 3 at the bottom of the discharge port 11, a circulating hot air fan 9 on the right side of the cabinet 1, a hot air pipe 7 fixedly connected to the top of the circulating hot air fan 9, an air inlet pipe 19 fixedly connected to the right side of the circulating hot air fan 9, a motor 10 fixedly connected to the left side of the cabinet 1, a rotating shaft 6 fixedly connected to the output end of the motor 10, fixed columns 13 rotatably connected to both ends of the rotating shaft 6, a stirring column 5 fixedly connected to the middle of the rotating shaft 6, and a dehumidification mechanism on the left side of the drying chamber 4 for dehumidifying the drying chamber 4.
[0025] Lithium aluminum hydride in the feed hopper 2 enters the drying chamber 4 through the feed inlet 12. The circulating hot air fan 9 delivers heated air into the drying chamber 4 through the hot air pipe 7. At the same time, the motor 10 starts, and the rotating shaft 6 drives the stirring column 5 to rotate. The fan blades on the stirring column 5 continuously tumble and disperse the lithium aluminum hydride in the drying chamber 4, so that the lithium aluminum hydride is heated evenly. After the lithium aluminum hydride is dried, it falls naturally into the collection chamber 3 through the discharge port 11. The finished lithium aluminum hydride is taken out by opening the cabinet door 8. Thus, the lithium aluminum hydride is continuously tumbled and dispersed during the drying process, so as to achieve uniform drying, accelerate the drying speed of lithium aluminum hydride, and avoid the quality change of lithium aluminum hydride that will affect the quality of the finished product when it is piled up for a long time during drying.
[0026] refer to Figure 4The dehumidification mechanism includes an air outlet pipe 17, the top end of which is rotatably connected to the left side of the drying chamber 4, and a hot air exchanger 15 is rotatably connected to the bottom end of the air outlet pipe 17. An air inlet pipe 16 is fixedly connected to the top of the hot air exchanger 15. A filter column 18 is fixedly connected to the top end of the air inlet pipe 16 and the top end of the air outlet pipe 17. A breathable plate 20 is fixedly connected to the top end of the filter column 18.
[0027] When the hot air exchanger 15 is activated, it draws in air from the collection chamber 3 through the air inlet pipe 16 and sends dry air into the collection chamber 3 through the air outlet pipe 17. The filter column 18 and the air permeable plate 20 set at the front end of the air inlet pipe 16 and the air outlet pipe 17 prevent lithium aluminum hydride from entering the pipeline, thus avoiding affecting the production of lithium aluminum hydride. This keeps the air in the drying chamber 3 dry and prevents the condensation of water vapor on the inner wall of the feed inlet 12, which would affect the lithium aluminum hydride raw material.
[0028] refer to Figure 2 The bottom surface of the filter column 18 is in contact with the left side surface of the collection chamber 3, and the filter column 18 and the air vent plate 20 work together to prevent lithium aluminum hydride from entering the pipeline.
[0029] refer to Figure 2 The rotating shaft 6 passes through and extends to the inner right wall of the cabinet 1, and the fixed column 13 is fixedly connected to the cabinet 1, thereby ensuring that the rotating shaft 6 rotates smoothly inside the drying chamber 4.
[0030] refer to Figure 2 The bottom surface of the motor 10 is in contact with the top surface of the hot air exchanger 15, thereby keeping the motor 10 stable.
[0031] Referring to the figure, one end of the hot air pipe 7 passes through and extends to the inner wall of the right side of the drying chamber 4. The air is heated by the circulating hot air fan and enters the drying chamber 4 to achieve the drying of lithium aluminum hydride.
[0032] Referring to the figure, the surface of the stirring column 5 is in contact with the inner wall of the drying chamber 4, so that the lithium aluminum hydride can be continuously turned over when the stirring column 5 rotates to prevent the lithium aluminum hydride from accumulating.
[0033] Referring to the figure, a material trough plug 14 is provided at the top of the feed hopper 2. The surface of the material trough plug 14 is in contact with the inner wall of the top of the feed hopper 2 so as to seal the feed hopper 2 after lithium aluminum hydride is added, thereby achieving a seal for the entire drying mechanism.
[0034] Working principle: The circulating hot air blower 9 is started, and the lithium aluminum hydride in the feed hopper 2 enters the drying chamber 4 through the feed inlet 12. The circulating hot air blower 9 delivers heated air into the drying chamber 4 through the hot air pipe 7. Simultaneously, the motor 10 starts, and the rotating shaft 6 drives the stirring column 5 to rotate. The blades on the stirring column 5 continuously tumble and disperse the lithium aluminum hydride in the drying chamber 4, ensuring uniform heating. After drying, the lithium aluminum hydride naturally falls into the collection chamber 3 through the discharge port 11. The finished lithium aluminum hydride is then removed by opening the cabinet door 8. This process continuously tumbles and disperses the lithium aluminum hydride during drying, ensuring uniform drying. The drying process accelerates the drying speed of lithium aluminum hydride, preventing quality changes that may occur when lithium aluminum hydride is piled up for a long time during drying, thus affecting the quality of the finished product. The hot air exchanger 15 is activated, drawing in air from the collection chamber 3 through the air inlet pipe 16 and sending dry air into the collection chamber 3 through the air outlet pipe 17. The filter column 18 and the air permeable plate 20 set at the front end of the air inlet pipe 16 and the air outlet pipe 17 prevent lithium aluminum hydride from entering the pipeline, thus avoiding affecting the production of lithium aluminum hydride. This ensures that the air in the drying chamber 3 is kept dry, preventing the condensation of water vapor on the inner wall of the feed inlet 12, which would affect the lithium aluminum hydride raw material.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drying mechanism for lithium aluminum hydride production, comprising a cabinet (1), characterized in that: The cabinet (1) has a cabinet door (8) on the front side. A feeding hopper (2) is fixedly connected to the top of the cabinet (1). A drying chamber (4) is opened inside the cabinet (1). A feeding port (12) is provided between the feeding hopper (2) and the drying chamber (4). A discharge port (11) is opened at the bottom of the drying chamber (4). A collection chamber (3) is provided at the bottom of the discharge port (11). A circulating hot air fan (9) is provided on the right side of the cabinet (1). The top of the circulating hot air fan (9) is... A hot air duct (7) is fixedly connected to the cabinet (1). An air inlet duct (19) is fixedly connected to the right side of the circulating hot air blower (9). A motor (10) is fixedly connected to the left side of the cabinet (1). A rotating shaft (6) is fixedly installed at the output end of the motor (10). Fixed columns (13) are rotatably connected to both ends of the rotating shaft (6). A stirring column (5) is fixedly connected to the middle of the rotating shaft (6). A dehumidification mechanism is provided on the left side of the drying chamber (4). The dehumidification mechanism is used to dehumidify the drying chamber (4).
2. The drying mechanism for lithium aluminum hydride production according to claim 1, characterized in that: The dehumidification mechanism includes an air outlet pipe (17), the top end of which is rotatably connected to the left side of the drying chamber (4), the bottom end of which is rotatably connected to a hot air exchanger (15), the top of which is fixedly connected to an air inlet pipe (16), the top end of which is fixedly connected to a filter column (18), and the top end of which is fixedly connected to the air inlet pipe (16) and the top end of the air outlet pipe (17), and the top end of which is fixedly connected to a breathable plate (20).
3. A drying mechanism for lithium aluminum hydride production according to claim 2, characterized in that: The bottom surface of the filter column (18) is in contact with the left side surface of the collection chamber (3).
4. A drying mechanism for lithium aluminum hydride production according to claim 1, characterized in that: The pivot (6) passes through and extends to the inner wall of the right side of the cabinet (1), and the fixing column (13) is fixedly connected to the cabinet (1).
5. A drying mechanism for lithium aluminum hydride production according to claim 1, characterized in that: The bottom surface of the motor (10) is in contact with the top surface of the hot air exchanger (15).
6. A drying mechanism for lithium aluminum hydride production according to claim 1, characterized in that: One end of the hot air duct (7) extends through and into the inner wall of the right side of the drying chamber (4).
7. A drying mechanism for lithium aluminum hydride production according to claim 1, characterized in that: The surface of the stirring column (5) is in contact with the inner wall of the drying chamber (4).
8. A drying mechanism for lithium aluminum hydride production according to claim 1, characterized in that: The top of the feed hopper (2) is provided with a material trough plug (14), and the surface of the material trough plug (14) is in contact with the inner wall of the top of the feed hopper (2).