Distillation and purification equipment for tributylphosphine

Abstract

The utility model discloses distillation and purification equipment for tributylphosphine, and relates to the technical field of production and processing of tributylphosphine. The device comprises a distillation kettle, the bottom of one side of the surface of the distillation kettle is fixedly connected with a fixing plate, and the top of the fixing plate is fixedly connected with a cooling box; a distillation assembly is arranged in an inner cavity of the distillation still and comprises an air heater, the air heater is fixed to one side of the surface of the distillation still through a bottom plate, and an air guide groove is formed in the top of the inner cavity of the distillation still. The tributyl phosphine distillation kettle is driven by the motor, so that the temperature of a tributyl phosphine mixed solution in the distillation kettle is more uniform, the distillation efficiency is improved, hot air flows annularly in the air guide groove through blowing of the air heater, and the distillation efficiency is improved. When the temperature of the inner cavity of the distillation kettle reaches the boiling point of tributylphosphine, steam is guided into the cooling box through the exhaust pipe, and the steam is condensed into tributylphosphine liquid through blowing of the cooler.

Description

Technical Field

[0001] The utility model belongs to the technical field of tributylphosphine production and processing, in particular to a distillation and purification device for tributylphosphine. Background Art

[0002] The distillation purification equipment of tributyl phosphine is a device used to purify tributyl phosphine from its mixture. This equipment usually includes a distillation tower, in which the mixture is heated and evaporated at different temperatures, so that the target substance (tributyl phosphine) is separated. By controlling the temperature and pressure, efficient purification of tributyl phosphine can be achieved.

[0003] In the prior art, the distillation and purification equipment for tributyl phosphine mostly uses a fan to blow the steam when the evaporated tributyl phosphine is introduced into the cooling device. Since the steam is floating, the efficiency of the fan blowing is low, and the fan blowing will have a certain impact on the temperature in the distillation kettle, and will also cause the steam to hit the fan blades, resulting in the steam condensing in advance, which is easy to reduce the efficiency of the distillation and purification of tributyl phosphine. To this end, we provide a distillation and purification equipment for tributyl phosphine to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a distillation and purification device for tributyl phosphine. By coordinating a distillation component and a stirring component, the utility model solves the problem that the distillation and purification device for tributyl phosphine in the prior art has low efficiency when blowing steam into a cooling box, which easily affects the purification efficiency.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a distillation and purification device for tributylphosphine, comprising a distillation kettle, a fixed plate is fixedly connected to the bottom of one side of the surface of the distillation kettle, and a cooling box is fixedly connected to the top of the fixed plate;

[0007] The inner cavity of the distillation kettle is provided with a distillation component, and the distillation component includes a hot air blower, and the hot air blower is fixed to one side of the surface of the distillation kettle through a bottom plate, and an air guide groove is provided at the top of the inner cavity of the distillation kettle, and an exhaust pipe is connected to one side of the inner cavity of the air guide groove, and one end of the exhaust pipe extends to the top of one side of the inner cavity of the cooling box, and the inner cavity of the cooling box is provided with a cooling element;

[0008] The inner cavity of the distillation kettle is provided with a stirring assembly, which includes a motor. The motor is fixed to the top of the distillation kettle, and the output end extends to the inner cavity of the distillation kettle. The output end of the motor is fixedly connected to a rotating rod, and the surface of the rotating rod is fixedly connected to a stirring blade.

[0009] The utility model is further configured as follows: the cooling element includes a hollow tube, the hollow tube is connected to the top of one side of the inner cavity of the cooling box, one end of the exhaust pipe extends to one side of the inner cavity of the hollow tube, a one-way valve is sleeved on the surface of the exhaust pipe, and the bottom end of the hollow tube is connected to a guide plate.

[0010] The utility model is further configured such that a cooler is fixedly connected to one side of the cooling box, a condensation plate is fixedly connected to the inner cavity of the cooling box, and a refrigeration end of the cooler extends to one side of the inner cavity of the condensation plate.

[0011] The utility model is further configured that the output end of the hot air blower is connected to an air outlet pipe, and one end of the air outlet pipe extends to one side of the inner cavity of the air guide groove.

[0012] The utility model is further configured such that one side of the surface of the rotating rod is movably connected to the inner cavity of the air guide groove, and one end of the rotating rod is rotatably connected to the bottom of the inner cavity of the distillation kettle through a bearing.

[0013] The utility model is further configured that a drainage groove is provided in the inner cavity of the condensation plate, and both ends of the inner cavity of the drainage groove extend to the outside of the condensation plate.

[0014] The utility model is further configured that a feed pipe is connected to the top of one side of the inner cavity of the distillation kettle, and the bottom of the inner cavity of the feed pipe extends to the bottom of the inner cavity of the air guide groove.

[0015] The utility model is further configured that the front side of the inner cavity of the cooling box is movably connected to a box door through a hinge, and a handle is fixedly connected to one side of the front side of the box door.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model drives the motor to make the temperature of the tributyl phosphine mixed liquid inside the distillation kettle more uniform, thereby improving the distillation efficiency. The hot air flow is blown by the hot air blower to make the hot air flow flow in a circular manner inside the air guide groove. When the temperature of the inner cavity of the distillation kettle reaches the boiling point of tributyl phosphine, the steam is introduced into the cooling box through the exhaust pipe, and the steam is condensed into tributyl phosphine liquid by blowing of the cooler.

[0018] 2. The utility model can heat the interior of the distillation kettle by arranging the air guide groove and the hot air blower, and at the same time, the hot air flow flows in a ring inside the air guide groove, so that the tributyl phosphine is evaporated and introduced into the exhaust pipe by the hot air flow for subsequent cooling. By arranging the exhaust pipe and the one-way valve, the steam can be introduced into the cooling box and the steam backflow can be avoided, so as to improve the distillation efficiency. By arranging the stirring blade, the tributyl phosphine mixed liquid can be stirred so that the tributyl phosphine mixed liquid is heated evenly.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural stereogram of a distillation and purification device for tributylphosphine.

[0022] Figure 2 The present invention is a cross-sectional view of a still in a distillation and purification device for tributylphosphine.

[0023] Figure 3 The present invention is a cross-sectional view of a cooling box in a distillation and purification device for tributylphosphine.

[0024] Figure 4 The present invention is a cross-sectional view of a hollow tube and a condensation plate of a tributylphosphine distillation and purification device.

[0025] Figure 5 The present invention is a cross-sectional view of a gas guide groove of a tributylphosphine distillation and purification device.

[0026] In the attached figure: 1. distillation kettle; 2. fixed plate; 3. cooling box; 4. hot air blower; 5. air guide groove; 6. exhaust pipe; 7. motor; 8. rotating rod; 9. stirring blade; 10. hollow tube; 11. one-way valve; 12. guide plate; 13. cooler; 14. condensation plate; 15. air outlet pipe; 16. drainage groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0029] See also Figure 1-5 The utility model is a distillation and purification device for tributylphosphine, comprising a distillation kettle 1, a fixed plate 2 is fixedly connected to the bottom of one side of the surface of the distillation kettle 1, and a cooling box 3 is fixedly connected to the top of the fixed plate 2;

[0030] The inner cavity of the distillation kettle 1 is provided with a distillation assembly, which includes a hot air blower 4, which is fixed to one side of the surface of the distillation kettle 1 through a bottom plate, and an air guide groove 5 is provided at the top of the inner cavity of the distillation kettle 1, and an exhaust pipe 6 is connected to one side of the inner cavity of the air guide groove 5, and one end of the exhaust pipe 6 extends to the top of one side of the inner cavity of the cooling box 3, and a cooling element is provided in the inner cavity of the cooling box 3;

[0031] The inner cavity of the still 1 is provided with a stirring assembly, which includes a motor 7. The motor 7 is fixed to the top of the still 1, and the output end of the motor 7 extends to the inner cavity of the still 1. The output end of the motor 7 is fixedly connected to a rotating rod 8, and the surface of the rotating rod 8 is fixedly connected to a stirring blade 9.

[0032] Specifically: the fixing plate 2 is fixed to the bottom right side of the surface of the distillation kettle 1 to fix the cooling box 3, the hot air blower 4 is fixed to the top left side of the surface of the distillation kettle 1, and the output end extends to one side of the inner cavity of the air guide groove 5 to blow hot air into the air guide groove 5. The shape of the air guide groove 5 is annular, and the bottom of the inner circle is lower than the height of the bottom of the outer circle to make the air flow flow in an annular shape. The top of the air guide groove 5 is closed, and one end of the exhaust pipe 6 extends to the left side of the inner cavity of the air guide groove 5 to introduce steam into the cooling box 3. The stirring blades 9 on the surface of the rotating rod 8 are staggered. Specific embodiment 2

[0034] See also Figure 1-5 On the basis of the specific embodiment 1, the cooling member includes a hollow tube 10, the hollow tube 10 is connected to the top of one side of the inner cavity of the cooling box 3, one end of the exhaust pipe 6 extends to one side of the inner cavity of the hollow tube 10, a one-way valve 11 is sleeved on the surface of the exhaust pipe 6, the bottom end of the hollow tube 10 is connected to a guide plate 12, a cooler 13 is fixedly connected to one side of the cooling box 3, a condensation plate 14 is fixedly connected to the inner cavity of the cooling box 3, the cooling end of the cooler 13 extends to one side of the inner cavity of the condensation plate 14, the output end of the hot air blower 4 is connected to an air outlet pipe 15, and one end of the air outlet pipe 15 extends to one side of the inner cavity of the air guide groove 5.

[0035] Specifically: the left side of the inner cavity of the hollow tube 10 is connected to the right end of the exhaust pipe 6, the right end of the hollow tube 10 is closed, the bottom end of the hollow tube 10 is fixed to the top of the guide plate 12, and the bottom of the inner cavity is connected to the top of the inner cavity of the guide plate 12, the inner cavity of the guide plate 12 is empty, so as to spread the steam discharge area and increase the steam condensation rate, the refrigeration end of the cooler 13 is connected to the inner cavity of the condensation plate 14, so as to cool and condense the steam ejected from the inner cavity of the guide plate 12, and the air outlet pipe 15 extends to one end of the air guide groove 5 and is obliquely distributed to drive the air flow. Specific embodiment three

[0037] See also Figure 1-5On the basis of the specific embodiment 1 and the specific embodiment 2, one side of the surface of the rotating rod 8 is movably connected to the inner cavity of the air guide groove 5, one end of the rotating rod 8 is rotatably connected to the bottom of the inner cavity of the distillation kettle 1 through a bearing, a drainage groove 16 is opened in the inner cavity of the condensation plate 14, and both ends of the inner cavity of the drainage groove 16 extend to the outside of the condensation plate 14, a feed pipe is connected to the top of one side of the inner cavity of the distillation kettle 1, and the bottom of the inner cavity of the feed pipe extends to the bottom of the inner cavity of the air guide groove 5, and the front side of the inner cavity of the cooling box 3 is movably connected to a box door through a hinge, and a handle is fixedly connected to one side of the front of the box door.

[0038] Specifically: since the top of the inner cavity of the air guide groove 5 is closed and the air guide groove 5 is opened at the top of the inner cavity of the distillation kettle 1, one side of the surface of the rotating rod 8 is movably connected to the inner cavity of the air guide groove 5. The drainage groove 16 can quickly cool the steam in the inner cavity of the guide plate 12 and condense it into liquid in the inner cavity of the condensation plate 14, and drip it to the bottom of the inner cavity of the cooling box 3 through the small holes on the surface of the drainage groove 16 for subsequent collection. The top end of the feed pipe extends to the outside of the distillation kettle 1, and the bottom end extends to the bottom of the inner cavity of the air guide groove 5. When the tributyl phosphine that has been distilled and purified needs to be collected, it can be collected by opening the box door.

[0039] The working principle of the utility model is as follows: when it is necessary to distill and purify untreated tributyl phosphine, firstly, the tributyl phosphine mixed liquid is introduced into the distillation kettle 1 through the feed pipe, and then the hot air blower 4 is started to heat the inside of the distillation kettle 1, and the rotating rod 8 is driven to rotate by the starting motor 7, and the rotating rod 8 drives the stirring blade 9 to rotate, so that the tributyl phosphine mixed liquid is heated more evenly. When the temperature of the inner cavity of the distillation kettle 1 reaches the boiling point of the tributyl phosphine, the hot air flow generated by the hot air blower 4 flows in an annular shape inside the air guide groove 5, and the steam rises to the guide groove 5. When the steam is inside the gas tank 5, it will flow with the hot air flow. When the steam passes through the inner cavity of the exhaust pipe 6, due to the temperature difference, it will enter the hollow tube 10 along the exhaust pipe 6. A one-way valve 11 is provided on the surface of the exhaust pipe 6 to prevent the steam from flowing back. The steam is then diffused through the guide plate 12 and ejected from the guide plate 12. Then the cooler 13 is turned on to cool the inner cavity of the condensation plate 14. The steam passes through the drainage groove 16 in the inner cavity of the condensation plate 14 and condenses into tributyl phosphine liquid, and falls to the bottom of the inner cavity of the cooling box 3 through the small hole for subsequent collection.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A distillation and purification device for tributylphosphine, comprising a distillation kettle (1), characterized in that: A fixing plate (2) is fixedly connected to the bottom of one side of the surface of the distillation kettle (1), and a cooling box (3) is fixedly connected to the top of the fixing plate (2); The inner cavity of the distillation kettle (1) is provided with a distillation assembly, and the distillation assembly includes a hot air blower (4), and the hot air blower (4) is fixed to one side of the surface of the distillation kettle (1) through a bottom plate. The top of the inner cavity of the distillation kettle (1) is provided with an air guide groove (5), and one side of the inner cavity of the air guide groove (5) is connected to an exhaust pipe (6), and one end of the exhaust pipe (6) extends to the top of one side of the inner cavity of the cooling box (3), and the inner cavity of the cooling box (3) is provided with a cooling element; The inner cavity of the distillation kettle (1) is provided with a stirring assembly, and the stirring assembly comprises a motor (7). The motor (7) is fixed to the top of the distillation kettle (1), and the output end of the motor (7) extends to the inner cavity of the distillation kettle (1). The output end of the motor (7) is fixedly connected to a rotating rod (8), and the surface of the rotating rod (8) is fixedly connected to a stirring blade (9).

2. The distillation and purification equipment for tributyl phosphine according to claim 1, characterized in that: The cooling element comprises a hollow tube (10), wherein the hollow tube (10) is connected to the top of one side of the inner cavity of the cooling box (3), one end of the exhaust pipe (6) extends to one side of the inner cavity of the hollow tube (10), a one-way valve (11) is sleeved on the surface of the exhaust pipe (6), and the bottom end of the hollow tube (10) is connected to a guide plate (12).

3. The distillation and purification equipment for tributyl phosphine according to claim 1, characterized in that: A cooler (13) is fixedly connected to one side of the cooling box (3), a condensation plate (14) is fixedly connected to the inner cavity of the cooling box (3), and a refrigeration end of the cooler (13) extends to one side of the inner cavity of the condensation plate (14).

4. The distillation and purification equipment for tributylphosphine according to claim 1, characterized in that: The output end of the hot air blower (4) is connected to an air outlet pipe (15), and one end of the air outlet pipe (15) extends to one side of the inner cavity of the air guide groove (5).

5. The distillation and purification equipment for tributyl phosphine according to claim 1, characterized in that: One side of the surface of the rotating rod (8) is movably connected to the inner cavity of the air guide groove (5), and one end of the rotating rod (8) is rotatably connected to the bottom of the inner cavity of the distillation kettle (1) via a bearing.

6. The distillation and purification equipment for tributyl phosphine according to claim 3, characterized in that: The inner cavity of the condensation plate (14) is provided with a drainage groove (16), and both ends of the inner cavity of the drainage groove (16) extend to the outside of the condensation plate (14).

7. The distillation and purification equipment for tributylphosphine according to claim 1, characterized in that: A feed pipe is connected to the top of one side of the inner cavity of the distillation kettle (1), and the bottom of the inner cavity of the feed pipe extends to the bottom of the inner cavity of the air guide groove (5).

8. The distillation and purification equipment for tributylphosphine according to claim 1, characterized in that: The front side of the inner cavity of the cooling box (3) is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the front side of the box door.

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