Distillation equipment

Abstract

The utility model discloses distillation equipment which comprises a distillation retort, a cover body is hinged on the distillation retort, the cover body is connected with a mounting frame, and the cover body and the mounting frame are coaxially hinged on the distillation retort; the stirring mechanism is rotationally connected to the cover body, the stirring mechanism comprises a first stirring assembly and a second stirring assembly, and the first stirring assembly and the second stirring assembly enable a target solution to form opposite spiral directions during stirring; the driving motor is mounted on the mounting frame, and the driving motor is in transmission connection with the stirring mechanism; the condensation mechanism is communicated with the distillation retort, and the condensation mechanism is used for cooling the steam into liquid so as to facilitate recovery. The utility model solves the problems in the background art that when the existing distillation reaction kettle is used for preparing a target mixed solution, the mixed solution rotates along with a stirring paddle during stirring, eddy current is easy to generate, the mixing effect is poor, and the stirring is not uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of distillation equipment, belong to chemical pharmaceutical equipment technical field. BACKGROUND

[0002] In chemical pharmaceutical industry, distillation is a thermodynamic separation process, it uses the different boiling points of each component in mixed liquid or liquid-solid system, so that low-boiling component evaporates, and then condenses to separate the whole component unit operation process, which is the combination of evaporation and condensation two unit operations. Compared with other separation methods, such as extraction, filtration crystallization, etc., its advantage lies in not using other solvents except system components, so as to ensure that no new impurities are introduced.

[0003] The existing distillation reaction kettle utilizes stirring paddle with a certain rotating speed to drive mixed liquid, and the mixed liquid is mixed into relatively uniform target mixed liquid under the impact of collision with the inner wall of stirring cylinder and the stirring action of stirring paddle, like Chinese patent with publication number CN212282918U. However, when preparing the target mixed liquid, the mixed liquid rotates with the stirring paddle during stirring, which is easy to produce vortex, and the mixing effect is not good and the stirring is not uniform. SUMMARY

[0004] The utility model aims at providing a kind of distillation equipment, solve the problem that the existing distillation reaction kettle in background art mentioned in preparing target mixed liquid, mixed liquid rotates with stirring paddle during stirring, which is easy to produce vortex, and the mixing effect is not good and the stirring is not uniform.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of distillation equipment, comprising:

[0007] A distillation tank, a cover is hinged to the distillation tank, the cover is connected to a mounting bracket, the cover and the mounting bracket are coaxially hinged to the distillation tank;

[0008] A stirring mechanism is rotatably connected to the cover, the stirring mechanism includes a first stirring assembly and a second stirring assembly, the first stirring assembly and the second stirring assembly form opposite spiral directions when stirring;

[0009] A drive motor is installed on the mounting bracket, and the drive motor is drivingly connected to the stirring mechanism;

[0010] A condensing mechanism is in communication with the distillation tank, and the condensing mechanism is used to cool the steam into liquid for recycling.

[0011] Preferably, the first stirring assembly includes:

[0012] A stirring shaft is arranged to pass through the cover and is rotatably connected to the cover.

[0013] A circular plate is fixedly connected to the end of the stirring shaft, and a plurality of first stirring blades are arranged at equal intervals on the periphery of the circular plate and are arranged at an angle with the circular plate.

[0014] Preferably, the second stirring assembly comprises:

[0015] A fixed disc is fixedly connected to the stirring shaft.

[0016] Two circular ring plates are arranged, and a plurality of second stirring blades are arranged at equal intervals on the periphery between the two circular ring plates, and the rotation direction of the second stirring blades is opposite to that of the first stirring blades.

[0017] A plurality of connecting rods are arranged to fixedly connect the circular ring plates to the fixed disc.

[0018] Preferably, the first stirring blades are arranged between the two circular ring plates.

[0019] Preferably, an annular turbulence grid is arranged between the first stirring blades and the second stirring blades, and the annular turbulence grid is arranged between the two circular ring plates.

[0020] Preferably, the condensing mechanism comprises:

[0021] A box is formed with a cooling cavity, and a condensing pipe is wound on the side wall of the cooling cavity.

[0022] A gas-liquid separation pipe is connected to the distillation tank, and the gas-liquid separation pipe is arranged in the cooling cavity.

[0023] A liquid receiving tank is arranged at the bottom of the box, the gas-liquid separation pipe is connected to the liquid receiving tank, and the liquid receiving tank is used to receive the liquid separated from the gas-liquid separation pipe.

[0024] Preferably, the gas-liquid separation pipe is spiral-shaped to increase the gas-liquid separation area and help the liquid droplets on the inner wall of the gas-liquid separation pipe to converge after gas-liquid separation.

[0025] Preferably, an exhaust fan is arranged at the top of the box, and the exhaust fan is used to ensure the circulation of air in the cooling cavity and further improve the cooling effect in the cooling cavity.

[0026] Preferably, a lock is arranged between the distillation tank and the cover, and the lock is used to lock the cover on the distillation tank.

[0027] Preferably, the lock comprises:

[0028] The locking rod is hinged to the distilling tank through a pin shaft, and a threaded structure is arranged on the locking rod.

[0029] The locking member is provided with a threaded connecting portion, which is threadedly connected to the threaded structure.

[0030] The abutting portion is arranged on the cover body and is provided with a slot, and the slot has a width greater than the outer diameter of the locking rod and less than the outer diameter of the threaded connecting portion.

[0031] The utility model discloses the beneficial effects are:

[0032] Compared with the prior art, the utility model discloses through starting servo motor, servo motor drives the stirring shaft rotation through first pulley, belt and second pulley, thereby make the circular plate of fixed connection at the end of stirring shaft and the first stirring vane of fixed setting on the circular plate rotate, simultaneously, the fixed disc of fixed connection on the stirring shaft rotates, and the fixed disc is taken to the second stirring vane of fixed connection between two circular ring plate rotation through connecting rod, because the rotation direction of the second stirring vane is opposite with the rotation direction of the first stirring vane, the vortex direction of the target solution that is stirred by two when stirring makes the vortex direction of the target solution that is stirred by two exactly opposite, make the part of target solution that is stirred by the first stirring vane, with the target solution that is stirred by the second stirring vane mixes, to overcome the vortex phenomenon that background art mentions to generate, thereby improved the mixing effect of target solution. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0034] Figure 2 It is the three-dimensional structure schematic diagram of the distilling tank of the utility model

[0035] Figure 3 It is the sectional structure schematic diagram of the distilling tank of the utility model;

[0036] Figure 4 It is the structure schematic diagram of the cover body and mounting frame of the utility model;

[0037] Figure 5 It is the structure schematic diagram of the stirring mechanism of the utility model;

[0038] Figure 6 It is the first stirring vane and the second stirring vane position structure schematic diagram of the utility model;

[0039] Figure 7 It is the Figure 2 The locking device structure schematic diagram of the utility model is enlarged.

[0040] In the figure: 1, distillation tank; 101, outer shell; 102, inner shell; 103, heating cavity; 2, electric heater; 3, first resistance thermometer; 4, second resistance thermometer; 5, condensing mechanism; 501, box body; 502, condenser tube; 503, door; 504, exhaust fan; 505, gas-liquid separation tube; 506, liquid receiving tank; 507, exhaust pipe; 508, liquid discharge valve;

[0041] 6, cover body; 7, mounting frame; 701, connecting part; 8, driving motor; 9, air cylinder; 10, stirring shaft; 11, belt; 12, second belt pulley; 13, steam standby output port; 14, raw material solution input port; 15, locking rod; 16, locking piece; 17, abutting part; 18, circular plate; 19, first stirring blade; 20, circular ring plate; 21, second stirring blade; 22, annular turbulence grid; 23, connecting rod; 24, shaft sleeve; 25, fixed disc 25. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative characteristics, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0043] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] In the utility model, unless explicitly defined and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the application. For simplicity of the disclosure, the description below refers to specific examples of the application. Of course, the application is not limited to these examples. They are presented simply to explain how the application can be implemented. The description below assumes a person of ordinary skill in the art is implicitly capable of generating examples of the application, such as the appropriate voltage, current, and / or power source, based on the overall description of the application to follow. In addition, the description below refers to a number of publications, patents, and patent documents; the structure, content, and / or examples of which are not intended to be limiting of the application. The description below refers to a number of publications, patents, and patent documents; the structure, content, and / or examples of which are not intended to be limiting of the application. In addition, the description below provides a number of specific examples, and uses of the application. Of course, it is not possible to describe every conceivable combination of components or methodologies for purposes of describing the application, the application can be practiced with the specific examples and uses described below, and the application can be practiced with other examples and uses.

[0046] As shown in Figures 1-7 A distillation apparatus, comprising: a distillation tank, a cover, a stirring mechanism, a driving motor, a condensing mechanism.

[0047] Specifically, the distillation tank 1 comprises an inner container 102 and an outer container 101, a heating cavity 103 is formed between the inner container 102 and the outer container 101, an electric heater 2 is installed on the distillation tank 1, an electric heating element is arranged in the heating cavity 103, the electric heating element is connected with the electric heater 2, the electric heating element, the electric heater 2 and their connection mode are all prior art, and will not be described in detail. A heat conducting oil inlet and a heat conducting oil outlet are arranged on the outer container 101, the heat conducting oil inlet is used for pouring heat conducting oil into the heating cavity 103, the heat conducting oil outlet is used for replacing the heat conducting oil, and the heat conducting oil inlet and the heat conducting oil outlet are both sealed by sealing plugs when not in use. Four supporting legs are fixedly arranged at the bottom of the distillation tank 1, and the four supporting legs are arranged in pairs of symmetry. The inner container 102 and the cover 6 jointly form a closed stirring cavity; a first electric resistance thermometer 3 and a second electric resistance thermometer 4 are further installed on the distillation tank 1, the first electric resistance thermometer 3 penetrates through the inner container 102 and extends into the stirring cavity, and the first electric resistance thermometer 3 is used for detecting the temperature of a target solution in the stirring cavity; the second electric resistance thermometer 4 is in communication with the heating cavity 103 and is used for detecting the temperature of heat conducting oil in the heating cavity 103. A discharge pipe is connected to the bottom of the inner container 102, a discharge valve for opening or closing the channel of the discharge pipe is installed on the discharge pipe, and the discharge valve is prior art.

[0048] A cover 6 is fixedly connected with a mounting frame 7, the cover 6 and the mounting frame 7 are coaxially hinged to the distillation tank 1, so that the staff can open the cover 6 to clean the inner container 102 or add solid raw materials to the inner container 102 by opening the cover 6. A plurality of steam standby outlets 13 are arranged on the cover 6, so that multiple devices can be supplied at the same time. When the steam standby outlets 13 are no longer needed to supply other devices, they are blocked by plugs and clamps. Two raw material solution inlets 14 are also arranged on the cover 6, so that the required raw material solution can be supplemented into the inner container 102 of the distillation tank 1 through the raw material inlets. When in use, the raw material solution supply connection pipe is connected.

[0049] A stirring mechanism is rotatably connected to the cover 6 and extends into the inner container 102. The stirring mechanism includes a first stirring assembly and a second stirring assembly. When stirring, the first stirring assembly and the second stirring assembly make the target solution form opposite spiral directions, so that the first stirring assembly stirs the target solution and the second stirring assembly stirs the target solution to achieve a more uniform and sufficient mixing effect. The driving motor 8 of the present application is a servo motor. The servo motor is installed on the mounting frame 7. The output shaft of the servo motor penetrates the mounting plate of the mounting frame 7 and is fixedly connected with a first belt pulley 11. The output shaft is rotatably connected with the mounting plate. A second belt pulley 12 is fixedly connected to the stirring shaft 10 of the stirring mechanism. The first belt pulley 11 and the second belt pulley 12 are drivingly connected through a belt 11. The outer diameter of the first belt pulley 11 is smaller than the outer diameter of the second belt pulley 12.

[0050] The condensing mechanism 5 is communicated with the distillation tank 1 through a pipeline, and is used for cooling steam into liquid for recycling. Specifically, the condensing mechanism 5 comprises a box body 501, which is formed with a cooling cavity, the side wall of the cooling cavity is wound with a condensing pipe 502, the side wall of the box body 501 is provided with an outlet and an inlet communicated with the condensing pipe 502, and the box body 501 is connected with a cooling liquid supply system through the outlet and the inlet. The cooling liquid supply system comprises a cooling liquid storage tank and a circulating pump. The cooling liquid is introduced into the condensing pipe 502 from the inlet and is returned to the cooling liquid storage tank from the outlet by the circulating pump, so as to form a closed loop. Four supporting columns are installed at the bottom of the box body 501. A door 503 is further formed in the side wall of the box body 501. The door 503 is in an open state when maintenance is needed or the cooling cavity needs to be ventilated. An exhaust fan 504 is installed at the top of the box body 501. The exhaust fan 504 is used to ensure the circulation of air in the cooling cavity, and further improves the cooling effect in the cooling cavity. A gas-liquid separation pipe 505 is communicated with the distillation tank through a pipeline, and is installed in the cooling cavity. The gas-liquid separation pipe 505 is in a spiral shape, so as to increase the gas-liquid separation area and help the liquid drops on the inner wall of the gas-liquid separation pipe 505 to gather after gas-liquid separation. A liquid outlet pipe is arranged at the bottom of the gas-liquid separation pipe 505, penetrates through the bottom of the box body 501 and is communicated with a liquid receiving tank 506. An exhaust pipe 507 is further communicated with the gas-liquid separation pipe 505. The exhaust pipe 507 is used to deliver the unseparated gas to the next link. The liquid receiving tank 506 is installed at the bottom of the box body 501 and is communicated with the gas-liquid separation pipe 505. The liquid receiving tank 506 is used to receive the liquid separated from the gas-liquid separation pipe 505. A liquid discharge port is arranged at the bottom of the liquid receiving tank 506, and a liquid discharge valve 508 is installed at the liquid discharge port. The liquid discharge valve 508 is a prior art.

[0051] As a preferred embodiment, the first stirring assembly comprises a stirring shaft 10 penetrating through the cover body 6 and being rotationally connected with the cover body 6; a circular plate 18 fixedly connected to the end of the stirring shaft 10; the circular plate 18 is circumferentially provided with a plurality of first stirring blades 19, and each first stirring blade 19 is provided with a clamping groove, which is clamped to the circular plate 18 and then welded by a welding gun, and the plurality of first stirring blades 19 are arranged at an angle with the circular plate 18. The second stirring assembly comprises a fixed disc 25 fixedly connected to the stirring shaft 10 by a key, and the fixed disc is rotationally connected with a shaft sleeve 24 fixedly connected to the cover body 6; a circular ring plate 20, which is provided with two circular ring plates 20 arranged axially at intervals, and a plurality of second stirring blades 21 are circumferentially and equidistantly arranged between the two circular ring plates 20, the rotating direction of the second stirring blades 21 being opposite to that of the first stirring blades 19; a connecting rod 23, which is provided with a plurality of threaded holes in the fixed disc 25, and the connecting rod 23 is provided with a threaded structure matched with the threaded holes, and the plurality of connecting rods 23 are used to fixedly connect the circular ring plates 20 to the fixed disc by bolts, and each connecting rod 23 is provided with an internal threaded hole at the end, and the bolt is screwed into the internal threaded hole after penetrating through the two circular ring plates 20. The first stirring blades 19 are located between the two circular ring plates 20.

[0052] In order to further improve the mixing effect of the target solution, an annular turbulence grid 22 is arranged between the first stirring blades 19 and the second stirring blades 21, the annular turbulence grid 22 is installed between the two circular ring plates 20, and the target solution stirred by the first stirring assembly is disturbed by the annular turbulence grid 22 after passing through the mesh holes of the annular turbulence grid 22, and then mixed with the target solution stirred by the second stirring assembly, the direction of the vortex of the target solution stirred by the second stirring assembly being opposite to that of the target solution stirred by the first stirring assembly, so as to achieve further mixing and further improve the target solution.

[0053] As a preferred embodiment, the mounting bracket 7 is provided with a connecting portion 701 hinged to the free end of the air cylinder 9, and the other end of the air cylinder 9 is hinged to an air cylinder mounting seat. The air cylinder mounting seat is fixedly connected to the distillation tank 1, and the air cylinder mounting seat is welded to the distillation tank 1. It should be noted that the air cylinder 9 in this document is in communication with the air compressor and the electromagnetic valve of the air supply system, and the air cylinder 9, the air compressor and the electromagnetic valve of the air cylinder air supply system are all prior art, which will not be described here.

[0054] As a preferred embodiment, a lock is arranged between the distillation tank 1 and the cover 6, which is used to lock the cover 6 on the distillation tank 1. Specifically, the lock comprises:

[0055] A locking rod 15 is hingedly connected to a hinge arranged on the distillation tank 1, and a threaded structure is arranged on the locking rod 15. A locking piece 16 is arranged, and a threaded connecting portion 701 is arranged on the locking piece 16 and is threadedly connected to the threaded structure. An abutting portion 17 is arranged on the cover 6, and the abutting portion 17 is provided with a slot, and the width of the slot is greater than the outer diameter of the locking rod 15 and is less than the outer diameter of the threaded connecting portion 701. The locking piece 16 has a locking position and an unlocking position. When the locking piece 16 is in the locking position, the locking rod 15 is located in the slot, and the locking piece 16 abuts against the abutting portion 17. When the locking piece 16 is in the unlocking position, the locking piece 16 is separated from the abutting portion 17 by rotating the locking piece 16, and the locking rod 15 is separated from the slot by rotating the locking rod 15, so as to achieve the purpose of unlocking. A plurality of locks are arranged along the circumference of the cover 6.

[0056] Principle: Start the servo motor, and the servo motor drives the stirring shaft 10 to rotate through the first belt pulley 11, the belt 11 and the second belt pulley 12, so that the circular plate 18 fixedly connected to the end of the stirring shaft 10 and the first stirring blade 19 fixedly arranged on the circular plate 18 rotate. At the same time, the fixed disc fixedly connected to the stirring shaft 10 rotates, and the fixed disc drives the second stirring blade 21 fixedly connected between the two circular ring plates 20 to rotate through the connecting rod 23. Since the rotation direction of the second stirring blade 21 is opposite to that of the first stirring blade 19, the vortex directions of the target solution stirred by the two stirring blades are opposite, so that the target solution stirred by the first stirring blade 19 is mixed with the target solution stirred by the second stirring blade 21, so as to overcome the vortex phenomenon mentioned in the background art, thereby improving the mixing effect of the target solution. The steam generated by the distillation tank 1 is input into the gas-liquid separation pipe 505 through the pipeline, and under the action of the condenser pipe 502 and the exhaust fan 504, the steam is separated in the gas-liquid separation pipe 505, and the liquid drops condensed on the inner wall of the gas-liquid separation pipe 505 flow into the liquid receiver 506 from the liquid outlet pipe at the bottom of the gas-liquid separation pipe 505 after gathering, and the gas not separated flows out from the exhaust pipe 7 to the next link.

[0057] It should be further explained that sealing members are arranged at each connection for sealing. The sealing members at each connection are prior art, and the material of the distillation reaction kettle needs to strictly meet the requirements of corrosion resistance, high temperature resistance and sanitary grade standards to ensure the safety and quality of drug production, such as 316L stainless steel or nickel-based alloy, which will not be described here.

[0058] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. Distillation apparatus, characterized in that The utility model relates to a distillation device, including: a distillation tank, a cover body is hinged on the distillation tank, a mounting frame is connected to the cover body, the cover body and the mounting frame are coaxially hinged on the distillation tank; a stirring mechanism is rotationally connected to the cover body, the stirring mechanism includes a first stirring assembly and a second stirring assembly, the first stirring assembly and the second stirring assembly form opposite spiral directions when stirring; a drive motor is installed on the mounting frame, and the drive motor is in transmission connection with the stirring mechanism; a condensing mechanism is in communication with the distillation tank, and the condensing mechanism is used to cool the steam into liquid for recycling.

2. A distillation apparatus according to claim 1, wherein, The first stirring assembly includes: a stirring shaft that penetrates the cover body and is rotationally connected to the cover body; a circular plate is fixedly connected to the end of the stirring shaft, and a plurality of first stirring blades are circumferentially and equidistantly arranged on the circular plate at an angle to the circular plate.

3. A distillation apparatus according to claim 2, wherein, The second stirring assembly includes: a fixed disc is fixedly connected to the stirring shaft; two circular ring plates are provided, and a plurality of second stirring blades are circumferentially and equidistantly arranged between the two circular ring plates, and the rotation direction of the second stirring blades is opposite to that of the first stirring blades; a plurality of connecting rods are provided, and the connecting rods are used to fixedly connect the circular ring plates to the fixed disc.

4. A distillation apparatus according to claim 3, wherein The first stirring blades are located between the two circular ring plates.

5. A distillation apparatus as claimed in claim 4, characterised in that: An annular turbulence grid is arranged between the first stirring blades and the second stirring blades, and the annular turbulence grid is installed between the two circular ring plates.

6. A distillation apparatus according to claim 1 or 5, wherein The condensing mechanism includes: a box body is formed with a cooling cavity, and a condensing pipe is wound on the side wall of the cooling cavity; a gas-liquid separation pipe is in communication with the distillation tank and is installed in the cooling cavity; a liquid receiving tank is installed at the bottom of the box body, and the gas-liquid separation pipe is in communication with the liquid receiving tank, and the liquid receiving tank is used to receive the liquid separated from the gas-liquid separation pipe.

7. A distillation apparatus according to claim 6, wherein: The gas-liquid separation pipe is spiral-shaped to increase the gas-liquid separation area and help the liquid droplets on the inner wall of the gas-liquid separation pipe to converge after gas-liquid separation.

8. A distillation apparatus according to claim 7, characterised in that: An exhaust fan is installed on the top of the box body, and the exhaust fan is used to ensure the circulation of air in the cooling cavity, further improving the cooling effect in the cooling cavity.

9. A distillation apparatus according to claim 1, wherein: A lock is arranged between the distillation tank and the cover body, and the lock is used to lock the cover body on the distillation tank.

10. A distillation apparatus according to claim 9, wherein: The lock includes: a lock rod is hinged on the distillation tank by a pin shaft, and a threaded structure is arranged on the lock rod; a locking piece is provided with a threaded connection part, and the threaded connection part is in threaded connection with the threaded structure; an abutting part is arranged on the cover body, and the abutting part is provided with a slot, and the width of the slot is greater than the outer diameter of the lock rod and less than the outer diameter of the threaded connection part.

Images