Dehydration device for tetramethylammonium fluoride hydrate

Abstract

The utility model provides a tetramethylammonium fluoride hydrate dehydration device which comprises a horizontally placed tank body, one end of the tank body is fixedly connected with a driving motor, one end of the driving motor extends to be provided with a motor shaft, the motor shaft extends into the tank body, the two ends of the motor shaft are both fixedly connected with fixing frames, and the fixing frames are fixedly connected with the driving motor. A plurality of stirring blades are arranged between the two fixing frames, the stirring blades are spiral, the cross section of each stirring blade is L-shaped, one side of each L-shaped stirring blade is in contact with the inner wall of the tank body, an air inlet pipe and an air outlet pipe are arranged at the two ends of the tank body respectively, the air inlet pipe extends into the tank body and surrounds to form an annular structure, and the air outlet pipe extends into the tank body. And a rear air outlet hole is formed in the side wall. According to the drying device, drying is conducted in an internal circulation mode, the spiral stirring blades are arranged, the drying effect is improved, and energy consumption can be reduced through the arranged heat energy circulation device.

Description

Technical Field

[0001] The present invention relates to the technical field of dehydration devices, in particular to a dehydration device for tetramethylammonium fluoride hydrate. Background Art

[0002] Tetramethylammonium fluoride is a commonly used fluorination reagent for pharmaceutical intermediates. However, tetramethylammonium fluoride itself easily absorbs water and generally contains crystal water. Its anhydrate is difficult to buy on the market. Currently, the production of most pharmaceutical intermediates, especially the fluorination reaction, has a great influence on the reaction, so the water content is extremely high. Therefore, the tetramethylammonium fluoride hydrate needs to be dehydrated to meet the standard before use. The common method is to dissolve the tetramethylammonium fluoride in a water-miscible solvent and then repeatedly distill and dehydrate it.

[0003] The tetramethylammonium fluoride produced by the reaction contains water, so dehydration is required. During the drying process, a large amount of water vapor is generated, which must be purified before it can be discharged. This water vapor also contains a large amount of heat energy, and if it cannot be recycled, it will undoubtedly increase energy consumption. Summary of the Invention

[0004] To solve the above problems, the present invention discloses a dehydration device for tetramethylammonium fluoride hydrate, comprising a horizontally placed tank body, one end of the tank body being fixedly connected to a drive motor, one end of the drive motor being extended with a motor shaft, and the motor shaft extending to the interior of the tank body, both ends of the motor shaft being fixedly connected to a fixed frame, a plurality of stirring blades being provided between the two fixed frames, the stirring blades being spiral-shaped, and the cross-section of the stirring blades being "L"-shaped, and one side of the "L" being in contact with the inner wall of the tank body. When the device is used, tetramethylammonium fluoride is fed into the interior of the tank body, the drive motor is started, and the stirring blades are driven to rotate. During the rotation, the "L" structure scoops up the tetramethylammonium fluoride, and when the rotation reaches a high position, the tetramethylammonium fluoride is dropped again. At the same time, the spiral structure causes the tetramethylammonium fluoride on the stirring blades to gradually drop at the highest position. This arrangement continuously stirs the tetramethylammonium fluoride, which can prevent the tetramethylammonium fluoride from becoming calcified.

[0005] The tank body is provided with an air inlet and an air outlet at each end. The air inlet extends into the interior of the tank body and forms a circular structure. Delayed air outlets are provided on the sidewalls. Dry hot gas is introduced into the air inlet and discharged through the air outlet. The hot gas passes through the tetramethylammonium fluoride during its descent, achieving a drying process. Simultaneously, the circular air inlet structure inside the tank body ensures that the hot gas is evenly discharged.

[0006] Preferably, a feed port is provided on a side wall at one end of the tank body, and a discharge port is provided at the lower portion of the tank body for feeding and discharging materials.

[0007] Preferably, support legs are fixedly connected to both sides of the lower part of the tank body to support the tank body.

[0008] Preferably, a heat circulation device is provided above the tank body, and the air inlet pipe and the air outlet pipe are connected to both ends of the heat circulation device respectively. The heat circulation device is used for heat transfer and can reduce energy consumption.

[0009] Preferably, the interior of the thermal energy circulation device is sequentially provided with a heating chamber, a transition chamber, and a cooling chamber. The interior of the heating chamber is provided with a condenser, the interior of the transition chamber is provided with a compressor, and the interior of the cooling chamber is provided with an evaporator. That is, the condenser, compressor, and evaporator have the same functions as those of air conditioning refrigeration, that is, the gas sent out from the outlet pipe first enters the cooling chamber for cooling, and at the same time, the moisture therein is condensed and sent out, that is, used to dry the sent gas. Then the gas passes through the transition chamber and cools the compressor. Finally, the air enters the heating chamber, and the cooled air is heated and sent into the interior of the tank. This device is designed for internal circulation, which avoids the volatilization of materials during the drying process and the occurrence of air pollution.

[0010] Preferably, a fan and an electric heating network are provided inside the heating chamber, wherein the fan is used for air circulation and the electric heating network is used for auxiliary heating.

[0011] Preferably, the lower side wall of the thermal energy circulation device is provided with a water chamber, the water chamber is connected to the cooling chamber, and a drain pipe is fixedly connected to the side wall of the water chamber. Water condensed in the cooling chamber enters the water chamber and is then discharged from the drain pipe.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. It is equipped with a spiral stirring blade, and its "L"-shaped cross section can scoop up the tetramethylammonium fluoride during the rotation process and then drop it at a high position. This method is conducive to the dehydration of tetramethylammonium fluoride when hot air passes through, and also avoids the agglomeration of tetramethylammonium fluoride.

[0014] 2. A heat energy circulation device is provided, that is, air circulates in the heat energy circulation device and inside the tank body, which avoids the overflow of substances during the dehydration process and causes pollution, and at the same time, the purification of the generated condensed water is more convenient.

[0015] 3. A heat energy circulation device is provided, the purpose of which is to dehydrate the air, transfer the heat therein and heat the dehydrated air again, thereby realizing heat circulation and greatly reducing the energy consumption required for dehydration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2It is a cross-sectional schematic diagram of the present invention;

[0018] Figure 3 Schematic diagram of the stirring structure of the present invention;

[0019] Figure 4 Schematic diagram of the structure of the stirring blade of the present invention;

[0020] Figure 5 It is a perspective view of the thermal energy circulation device of the present invention.

[0021] List of reference numerals:

[0022] 1. Tank body; 2. Heat circulation device; 3. Support legs; 4. Drive motor; 5. Air inlet pipe; 6. Stirring blade; 7. Motor shaft; 8. Discharge port; 9. Air outlet pipe; 10. Fixing bracket; 11. Air outlet hole;

[0023] 21. Heating chamber; 22. Fan; 23. Electric heating network; 24. Condenser; 25. Transition chamber; 26. Compressor; 27. Water chamber; 28. Evaporator; 29. ​​Cooling chamber; 210. Drain pipe. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0025] like Figures 1 to 5 As shown, a dehydration device for tetramethylammonium fluoride hydrate comprises a horizontally placed tank body 1, the tank body 1 is cylindrical, one end of the tank body 1 is fixedly connected to a drive motor 4, one end of the drive motor 4 is extended with a motor shaft 7, the drive motor 4 is started, so that the motor shaft 7 rotates, and the motor shaft 7 extends to the interior of the tank body 1, both ends of the motor shaft 7 are fixedly connected to a fixed frame 10, a plurality of stirring blades 6 are provided between the two fixed frames 10, the stirring blade 6 rotates with the motor shaft 7, the stirring blade 6 is spiral, and the cross section of the stirring blade 6 is "L" shaped, and one side of the "L" contacts the inner wall of the tank body 1, during the rotation of the stirring blade 6, its "L" shape scoops up the tetramethylammonium fluoride in the tank body 1, and after rotating to the highest position, it falls, and the stirring blade 6 is spiral, that is, the scooped tetramethylammonium fluoride gradually reaches a high position and falls. In the above structure, the problem of tetramethylammonium fluoride caking during the drying process can be avoided.

[0026] An air inlet pipe 5 and an air outlet pipe 9 are respectively provided at both ends of the tank body 1. The air inlet pipe 5 sends hot air into the interior of the tank body 1 to dry the tetramethylammonium fluoride. At the same time, the dried air is sent out from the air outlet pipe 9. The air inlet pipe 5 extends to the interior of the tank body 1 and is surrounded by a ring structure. A delayed air outlet 11 is provided on its side wall. Its ring structure can evenly send hot air into the interior of the tank body 1.

[0027] A feed port is provided on the side wall of one end of the tank body 1, and a discharge port 8 is provided at the lower portion of the tank body 1 for feeding in and out tetramethylammonium fluoride.

[0028] Support legs 3 are fixedly connected to both sides of the lower part of the tank body 1 to support and fix the tank body 1.

[0029] A heat energy circulation device 2 is provided above the tank body 1 to provide hot air and reduce energy consumption. The air inlet pipe 5 and the air outlet pipe 9 are respectively connected to the two ends of the heat energy circulation device 2 to realize internal circulation and avoid material overflow and air pollution.

[0030] The interior of the thermal energy circulation device 2 is sequentially provided with a heating chamber 21, a transition chamber 25 and a cooling chamber 29. The interior of the heating chamber 21 is provided with a condenser 24, the interior of the transition chamber 25 is provided with a compressor 26, and the interior of the cooling chamber 29 is provided with an evaporator 28. The condenser 24, the compressor 26 and the evaporator 28 are functionally the same as those of an air conditioner, and the pipe connections between the components are not described here. When the device is in operation, the air in the tank body 1 enters the cooling chamber 29 from the outlet pipe 9 to be cooled, and condensed water is formed, that is, the air sent out is dried, and then the air passes through the transition chamber 25, and the compressor 26 is cooled in the process, and finally enters the heating chamber 21 to be heated and then enters the interior of the tank body 1 through the intake pipe 5.

[0031] The inside of the heating chamber 21 is provided with a blower fan 22 and an electric heating network 23. The blower fan 22 works to realize the circulation of air, and the electric heating network 23 is the heat generated by electricity, which heats the air and plays the role of auxiliary heat.

[0032] The thermal energy circulation device 2 is provided with a water chamber 27 on the lower side wall. The water generated by condensation eventually falls into the water chamber 27. The water chamber 27 is connected to the cooling chamber 29. The side wall of the water chamber 27 is fixedly connected with a drain pipe 210, which discharges the water in the water chamber 27.

[0033] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above-mentioned embodiment, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A dehydration device for tetramethylammonium fluoride hydrate, characterized in that: The invention comprises a horizontally placed tank body (1), one end of the tank body (1) is fixedly connected to a driving motor (4), one end of the driving motor (4) is provided with a motor shaft (7), and the motor shaft (7) extends into the interior of the tank body (1), both ends of the motor shaft (7) are fixedly connected to fixing frames (10), and a plurality of stirring blades (6) are provided between the two fixing frames (10), the stirring blades (6) are spiral-shaped, and the cross section of the stirring blades (6) is "L"-shaped, and one side of the "L" contacts the inner wall of the tank body (1); An air inlet pipe (5) and an air outlet pipe (9) are respectively provided at both ends of the tank body (1). The air inlet pipe (5) extends into the interior of the tank body (1) and surrounds the tank body (1) to form a ring structure, and a delayed air outlet hole (11) is provided on the side wall thereof.

2. A dehydration device for tetramethylammonium fluoride hydrate according to claim 1, characterized in that: A feed port is provided on a side wall at one end of the tank body (1), and a discharge port (8) is provided at the lower portion of the tank body (1).

3. The dehydration device for tetramethylammonium fluoride hydrate according to claim 1, wherein: Support legs (3) are fixedly connected to both sides of the lower portion of the tank body (1).

4. The dehydration device for tetramethylammonium fluoride hydrate according to claim 1, wherein: A heat energy circulation device (2) is provided above the tank body (1), and the air inlet pipe (5) and the air outlet pipe (9) are respectively connected to two ends of the heat energy circulation device (2).

5. The dehydration device for tetramethylammonium fluoride hydrate according to claim 4, characterized in that: The heat energy circulation device (2) is provided with a heating chamber (21), a transition chamber (25) and a cooling chamber (29) in sequence. A condenser (24) is provided inside the heating chamber (21), a compressor (26) is provided inside the transition chamber (25), and an evaporator (28) is provided inside the cooling chamber (29).

6. The dehydration device for tetramethylammonium fluoride hydrate according to claim 5, characterized in that: A fan (22) and an electric heating network (23) are provided inside the heating chamber (21).

7. The dehydration device for tetramethylammonium fluoride hydrate according to claim 4, characterized in that: The heat energy circulation device (2) is provided with a water chamber (27) on the lower side wall. The water chamber (27) is connected to the cooling chamber (29). A drainage pipe (210) is fixedly connected to the side wall of the water chamber (27).

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