Dryer for manufacturing phosphorus trifluoride
By using a servo motor to drive the molecular sieve container to tumble and a hot air blower to heat it, the problem of manually removing molecular sieve particles during regeneration was solved, achieving efficient regeneration and drying of the dryer used in phosphorus trifluoride production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing molecular sieve dryers require manual removal and regeneration by workers when the molecular sieve particles are saturated, which is cumbersome and results in low work efficiency.
A dryer for phosphorus trifluoride production was designed. It uses a servo motor to drive the molecular sieve container to tumble, and uses a hot air blower and inert gas heating to regenerate the molecular sieve particles, thus avoiding the need to remove the molecular sieve particles.
It enables rapid regeneration of molecular sieve particles, improves working efficiency and drying efficiency, and simplifies the operation process.
Smart Images
Figure CN224086405U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the dryer technical field, especially is involved in a kind of phosphorus trifluoride preparation using dryer. BACKGROUND
[0002] Phosphorus trifluoride needs to use dryer in preparation process, and dryer is usually used to remove moisture or other impurities in gas or solvent, to ensure the purity of reactant and the stability of reaction process, in the process of preparing phosphorus trifluoride, using dryer can help to ensure the purity and efficiency of reaction, and common dryer includes molecular sieve dryer, which uses molecular sieve as adsorbent, and uses the microporous structure and adsorption performance of molecular sieve to remove moisture or other impurities.
[0003] The molecular sieve particles of the existing molecular sieve dryer are usually filled in the container, and the gas passes through the container, so that the moisture inside the gas is adsorbed by the molecular sieve. In long-term use, the molecular sieve particles are saturated, and the adsorption capacity thereof decreases. At this time, the molecular sieve particles need to be taken out for regeneration treatment. In the existing equipment, the worker needs to open the container to take out the molecular sieve, and then regenerate the molecular sieve by using a special regeneration device. This is relatively troublesome. UTILITY MODEL CONTENT
[0004] Therefore, the utility model aims at providing a phosphorus trifluoride preparation using dryer to solve the problem that the worker needs to open the container to take out the molecular sieve for regeneration treatment when the molecular sieve particles are saturated in the prior art, and the operation is relatively complicated and the work efficiency is reduced.
[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:
[0006] A phosphorus trifluoride preparation using dryer, comprising an upward pipeline, a hot air machine, a drying assembly and an air inlet pipeline, the hot air machine is arranged on one side wall of the upward pipeline, the air inlet pipeline is arranged on the other side wall of the upward pipeline, and the output ends of the hot air machine and the air inlet pipeline extend into the interior of the upward pipeline.
[0007] The drying assembly is arranged in the interior of the upward pipeline, and the drying assembly is arranged above the hot air machine and the air inlet pipeline.
[0008] The drying assembly comprises a support, a molecular sieve container and a servo motor, the support is arranged on the inner wall of the upward pipeline, the servo motor is arranged outside the upward pipeline, and the molecular sieve container is rotatably arranged in the support by the servo motor.
[0009] Preferably, the inner wall of the upward pipeline is made of hastelloy to avoid corrosion of phosphorus trifluoride, so as to achieve the effect of corrosion resistance.
[0010] Preferably, the gas inlet pipe is fixed on the riser pipe by welding.
[0011] Further, the bracket is circular, and the outer end of the bracket is fixed on the inner wall of the riser pipe.
[0012] Preferably, the bracket is fixed in the riser pipe by welding.
[0013] Further, the molecular sieve container is spherical, and the outer diameter of the molecular sieve container corresponds to the inner diameter of the bracket.
[0014] Further, one end of the molecular sieve container is provided with a first limiting rod, and the other end of the molecular sieve container is provided with a second limiting rod symmetrically arranged with the first limiting rod.
[0015] Preferably, the first limiting rod and the second limiting rod are fixed on the molecular sieve container by welding.
[0016] The first limiting rod is rotationally connected to one end of the bracket, and the second limiting rod successively penetrates the other end of the bracket and the side wall of the riser pipe and extends to the outside of the riser pipe.
[0017] Further, the mounting end of the servo motor is arranged on the side wall of the riser pipe, and the output shaft of the servo motor is fixedly connected with the second limiting rod.
[0018] The servo motor can drive the second limiting rod to rotate, thereby driving the molecular sieve container to rotate inside the bracket, so that the molecular sieve particles in the molecular sieve container tumble, and the phosphorus trifluoride gas in the molecular sieve container fully contacts with the molecular sieve particles, so that the water in the molecular sieve particles is absorbed, achieving the drying effect.
[0019] The regeneration treatment of the molecular sieve particles is performed by heating, and the water and other substances adsorbed by the molecular sieve particles can be removed by using a hot air blower to increase the temperature. The temperature setting needs to be determined according to the specific molecular sieve type and regeneration requirements.
[0020] Further, the molecular sieve container is provided with a plurality of through holes, and each of the plurality of through holes is provided with a mesh plate, and the outer diameter of the mesh plate corresponds to the inner diameter of the through hole.
[0021] The mesh plate covers more than half of the area of the surface of the molecular sieve container, which can prevent the molecular sieve particles from falling out while ensuring that the phosphorus trifluoride gas smoothly enters the inside of the molecular sieve container.
[0022] Further, the mesh plate is arranged in a longitudinal circular equidistant manner with the first limiting rod and the second limiting rod as the centers.
[0023] Further, a plurality of heat-conducting wires are arranged between every two adjacent net plates, one end of the heat-conducting wires is arranged on the side wall of the molecular sieve container and is flush with the outer surface of the molecular sieve container, and the other end of the heat-conducting wires extends into the molecular sieve container.
[0024] Preferably, the heat-conducting wires are fixed on the molecular sieve container by welding.
[0025] Preferably, the material of the heat-conducting wires is aluminum alloy, which has elasticity and excellent heat-conducting performance; in the process of rotating the molecular sieve container, the molecular sieve particles in the molecular sieve container collide with the plurality of heat-conducting wires, and the elasticity of the heat-conducting wires can intensify the rolling degree of the molecular sieve particles; meanwhile, the heat-conducting wires extend to the outside of the molecular sieve container and can directly contact the hot air output by the air heater, so that the heat can be better conducted to the inner cavity of the molecular sieve container and the molecular sieve particles in contact with the inner cavity, thereby effectively improving the regeneration efficiency.
[0026] Further, the molecular sieve container is filled with molecular sieve particles.
[0027] The diameter of the molecular sieve particles is greater than the pore size of the net plate.
[0028] Further, the air inlet pipeline is provided with a valve.
[0029] The air inlet pipeline is connected with an external air pump; when the air heater inputs hot air into the upward pipeline, the user can synchronously input inert gas into the inner cavity of the upward pipeline through the air inlet pipeline; in the heating process, the inert gas can uniformly transmit heat to the molecular sieve particles as a gas, thereby helping to improve the overall heating efficiency; when passing through the molecular sieve particles, the inert gas can help to remove the water or other impurities adsorbed in the molecular sieve particles, thereby promoting the regeneration effect; the valve is a flow regulating valve, which can adjust the opening degree according to needs, thereby controlling the flow of the inert gas in the air inlet pipeline and adjusting the oxygen concentration in the regeneration process, thereby reducing the oxidation influence of oxygen on the materials.
[0030] Preferably, the inert gas is nitrogen.
[0031] Compared with the prior art, the phosphorus trifluoride preparation drying device has the following advantages:
[0032] (1) The phosphorus trifluoride preparation drying device can directly heat the molecular sieve container filled with molecular sieve particles by using the air heater when regenerating the molecular sieve particles, so that the water in the molecular sieve particles can be quickly and conveniently removed, and the working efficiency is effectively improved.
[0033] (2) The phosphorus trifluoride preparation drying device has the advantages that the molecular sieve container is arranged, the contact area of the molecular sieve particles and the phosphorus trifluoride or hot air can be effectively improved during drying and regeneration, so that the drying efficiency and the regeneration efficiency are improved, the heat conduction is accelerated by the heat-conducting wires arranged in the molecular sieve container, and the regeneration treatment speed is improved. BRIEF DESCRIPTION OF DRAWINGS
[0034] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application, and their
[0035] Fig. 1 A kind of phosphorus trifluoride preparation drying device for the whole schematic diagram of the embodiment of the utility model is described in the utility model embodiment;
[0036] Fig. 2 The internal schematic diagram of the riser pipe of the phosphorus trifluoride preparation drying device for the embodiment of the utility model is described in the utility model embodiment;
[0037] Fig. 3 The schematic diagram of the molecular sieve container of the phosphorus trifluoride preparation drying device for the embodiment of the utility model is described in the utility model embodiment;
[0038] Fig. 4 The internal structure schematic diagram of the molecular sieve container of the phosphorus trifluoride preparation drying device for the embodiment of the utility model is described in the utility model embodiment.
[0039] Explanation of the drawings:
[0040] 1, riser pipe;2, hot air blower;3, support;4, servo motor;5, molecular sieve container;6, screen plate;7, heat-conducting wire;8, air inlet pipe;9, valve;10, first limit rod;11, second limit rod. DETAILED DESCRIPTION
[0041] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0042] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.
[0043] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0044] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0045] As Figs. 1 to 4 shown, a phosphorus trifluoride preparation drying device, including the rising pipeline 1, hot air machine 2, drying assembly, air inlet pipeline 8, hot air machine 2 is arranged on the one side wall of rising pipeline 1, air inlet pipeline 8 is arranged on the other side wall of rising pipeline 1, and the output end of hot air machine 2 and air inlet pipeline 8 all extends to the inside of rising pipeline 1.
[0046] The drying assembly is arranged inside the rising pipeline 1, and the drying assembly is arranged above the hot air machine 2 and the air inlet pipeline 8.
[0047] The drying assembly includes support 3, molecular sieve container 5, servo motor 4, support 3 is arranged on the inner wall of rising pipeline 1, servo motor 4 is arranged outside rising pipeline 1, and molecular sieve container 5 is rotatably arranged inside support 3 by servo motor 4.
[0048] The inner wall of the rising pipeline 1 is made of hastelloy, so as to avoid the corrosion of phosphorus trifluoride, and corrosion resistance can be achieved.
[0049] The air inlet pipeline 8 is fixed on the riser pipeline 1 by welding.
[0050] The bracket 3 is circular, and the outer end of the bracket 3 is fixed on the inner wall of the riser pipeline 1.
[0051] The bracket 3 is fixed in the riser pipeline 1 by welding.
[0052] The molecular sieve container 5 is spherical, and the outer diameter of the molecular sieve container 5 corresponds to the inner diameter of the bracket 3.
[0053] One end of the molecular sieve container 5 is provided with a first limiting rod 10, and the other end of the molecular sieve container 5 is provided with a second limiting rod 11 symmetrically arranged with the first limiting rod 10.
[0054] The first limiting rod 10 and the second limiting rod 11 are fixed on the molecular sieve container 5 by welding.
[0055] The first limiting rod 10 is rotationally connected to one end of the bracket 3, and the second limiting rod 11 sequentially penetrates the other end of the bracket 3 and the side wall of the riser pipeline 1 and extends to the outside of the riser pipeline 1.
[0056] The mounting end of the servo motor 4 is arranged on the side wall of the riser pipeline 1, and the output shaft of the servo motor 4 is fixedly connected with the second limiting rod 11.
[0057] The servo motor 4 can drive the second limiting rod 11 to rotate, thereby driving the molecular sieve container 5 to rotate inside the bracket 3, so that the molecular sieve particles in the molecular sieve container 5 tumble, and the water in the molecular sieve particles is absorbed by the phosphorus trifluoride gas in the molecular sieve container 5, so that the drying effect is achieved.
[0058] The regeneration treatment of the molecular sieve particles is performed by heating, and the water and other substances adsorbed by the molecular sieve particles can be removed by using the hot air blower 2 to increase the temperature, and the temperature setting needs to be determined according to the specific molecular sieve type and regeneration requirements.
[0059] The molecular sieve container 5 is provided with a plurality of through holes, and each of the plurality of through holes is provided with a mesh plate 6, and the outer diameter of the mesh plate 6 corresponds to the inner diameter of the through hole.
[0060] The mesh plate 6 covers more than half of the area of the surface of the molecular sieve container 5, which can prevent the molecular sieve particles from falling out while ensuring that the phosphorus trifluoride gas smoothly enters the inside of the molecular sieve container 5.
[0061] The mesh plate 6 is arranged in a longitudinal circular equidistant manner with the first limiting rod 10 and the second limiting rod 11 as the center.
[0062] A plurality of heat-conducting wires 7 are arranged between every two adjacent mesh plates 6, one end of the heat-conducting wires 7 is arranged on the side wall of the molecular sieve container 5 and is flush with the outer surface of the molecular sieve container 5, and the other end of the heat-conducting wires 7 extends into the interior of the molecular sieve container 5.
[0063] The heat-conducting wires 7 are fixed on the molecular sieve container 5 by welding.
[0064] The material of the heat-conducting wires 7 is aluminum alloy, which has elasticity and excellent heat-conducting performance; during the rotation of the molecular sieve container 5, the molecular sieve particles in the interior of the molecular sieve container 5 collide with the plurality of heat-conducting wires 7, and the elasticity of the heat-conducting wires 7 intensifies the rolling degree of the molecular sieve particles; meanwhile, the heat-conducting wires 7 extend to the outside of the molecular sieve container 5 and can directly contact the hot air output by the hot air machine 2, so that the heat can be better conducted to the inner cavity of the molecular sieve container 5 and the molecular sieve particles in contact with the inner cavity, thereby effectively improving the regeneration efficiency.
[0065] The molecular sieve container 5 is filled with molecular sieve particles.
[0066] The diameter of the molecular sieve particles is greater than the pore size of the mesh plate 6.
[0067] The air inlet pipeline 8 is provided with a valve 9.
[0068] The air inlet pipeline 8 is connected with an external air pump; when the hot air machine 2 inputs hot air into the interior of the upward pipeline 1, the user can synchronously input inert gas into the inner cavity of the upward pipeline 1 through the air inlet pipeline 8; during the heating process, the inert gas can uniformly transmit heat to the molecular sieve particles as a gas, thereby helping to improve the overall heating efficiency; when passing through the molecular sieve particles, the inert gas can help to carry away the moisture or other impurities adsorbed in the molecular sieve particles, thereby promoting the regeneration effect; the valve 9 is a flow regulating valve, which can adjust the opening degree according to the need, thereby controlling the flow of the inert gas in the air inlet pipeline 8 and adjusting the oxygen concentration during the regeneration process, thereby reducing the oxidation influence of oxygen on the material.
[0069] The inert gas is nitrogen.
[0070] In the specific implementation, when in use, the phosphorus trifluoride gas rises through the inner cavity of the upward pipeline 1, the user starts the servo motor 4 to drive the second limiting rod 11 to rotate, and then drives the molecular sieve container 5 to rotate inside the bracket 3, so that the molecular sieve particles in the molecular sieve container 5 roll, the phosphorus trifluoride gas enters the inner cavity of the molecular sieve container 5 through the plurality of mesh plates 6 and fully contacts the rolling molecular sieve particles, so that the internal moisture is absorbed, and finally discharged upward again through the mesh plate 6; when the molecular sieve particles are regenerated, the user starts the air heater 2 to input hot air into the inner cavity of the upward pipeline 1, the hot air rises into the inner cavity of the molecular sieve container 5, and at the same time, the user starts the servo motor 4 to drive the molecular sieve container 5 to rotate, so that the hot air fully contacts the rolling molecular sieve particles, so that the molecular sieve particles are quickly heated to discharge the moisture, the discharged moisture is discharged upward in the form of water vapor, when the air heater 2 inputs the hot air into the inner cavity of the upward pipeline 1, the user synchronously inputs nitrogen into the inner cavity of the upward pipeline 1 through the air inlet pipeline 8, the nitrogen can uniformly transmit the heat to the molecular sieve particles as a gas, and helps to improve the overall heating efficiency, in the process of rotating the molecular sieve container 5, the molecular sieve particles in the molecular sieve container 5 collide with the plurality of heat-conducting wires 7, and the elastic effect of the heat-conducting wires 7 can intensify the rolling degree of the molecular sieve particles, and the heat-conducting wires 7 extend to the outside of the molecular sieve container 5 and can directly contact the hot air output by the air heater 2, so that the heat can be better conducted to the inner cavity of the molecular sieve container 5 and the molecular sieve particles in contact with the inner cavity.
[0071] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A dryer for manufacturing phosphorus trifluoride, characterized in that: It includes an ascending pipe (1), a hot air blower (2), a drying assembly, and an air inlet pipe (8). The hot air blower (2) is installed on one side wall of the ascending pipe (1), and the air inlet pipe (8) is installed on the other side wall of the ascending pipe (1). The output ends of the hot air blower (2) and the air inlet pipe (8) extend into the interior of the ascending pipe (1). The drying assembly is located inside the rising pipe (1) and above the hot air blower (2) and the air inlet pipe (8); The drying assembly includes a support (3), a molecular sieve container (5), and a servo motor (4). The support (3) is set on the inner wall of the rising pipe (1), the servo motor (4) is set outside the rising pipe (1), and the molecular sieve container (5) is rotated inside the support (3) by the servo motor (4).
2. The dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: The bracket (3) is circular, and the outer end of the bracket (3) is fixed on the inner wall of the rising pipe (1).
3. A dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: The molecular sieve container (5) is spherical, and the outer diameter of the molecular sieve container (5) corresponds to the inner diameter of the support (3).
4. A dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: One end of the molecular sieve container (5) is provided with a first limiting rod (10), and the other end of the molecular sieve container (5) is provided with a second limiting rod (11) symmetrically arranged with the first limiting rod (10). The first limiting rod (10) is rotatably connected to one end of the bracket (3), and the second limiting rod (11) passes through the other end of the bracket (3) and the side wall of the rising pipe (1) and extends to the outside of the rising pipe (1).
5. A dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: The mounting end of the servo motor (4) is set on the side wall of the rising pipe (1), and the output shaft of the servo motor (4) is fixedly connected to the second limiting rod (11).
6. A dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: The molecular sieve container (5) has several through holes on its exterior, and each of the through holes has a mesh plate (6) inside it. The outer diameter of the mesh plate (6) corresponds to the inner diameter of the through hole.
7. A dryer for manufacturing phosphorus trifluoride according to claim 6, characterized in that: The mesh plate (6) is arranged in a longitudinal ring at equal intervals with the first limiting rod (10) and the second limiting rod (11) as the center.
8. A dryer for manufacturing phosphorus trifluoride according to claim 6, characterized in that: Between each pair of adjacent mesh plates (6), there are several heat-conducting wires (7). One end of the heat-conducting wire (7) is set on the side wall of the molecular sieve container (5) and is flush with the outer surface of the molecular sieve container (5). The other end of the heat-conducting wire (7) extends into the interior of the molecular sieve container (5).
9. A dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: The molecular sieve container (5) is filled with molecular sieve particles.
10. A dryer for manufacturing phosphorus trifluoride according to claim 1, characterized in that: A valve (9) is provided on the air intake pipe (8).