CN215427383U

CN215427383U - Distillation tower for producing drug intermediate

Info

Publication number: CN215427383U
Application number: CN202121860217.1U
Authority: CN
Inventors: 韩兵; 李晓平
Original assignee: Haicheng Leach Carbon Materials Co ltd
Current assignee: Haicheng Leach Carbon Materials Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-07
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a distillation tower for producing a drug intermediate, which relates to the technical field of biopharmaceutical processing and comprises a distillation tower body, a distillation tube, a heating tank and a plurality of reflux tanks, wherein the heating tank is arranged on the lower bottom surface in the distillation tower body; the plurality of reflux grooves are groove bodies formed by L-shaped plates and the inner wall of the distillation tower body respectively, two adjacent reflux grooves are arranged in a staggered mode, and an airflow acceleration structure is arranged between each L-shaped plate and the distillation tower body; a feed inlet is arranged at the center of the distillation tower body; the distillation tower has the advantages that the collection port is arranged on the upper surface of the distillation tower body, the distilled water can be used for refluxing to drive the fan to rotate, so that the airflow in the distillation tower is driven to flow at an accelerated speed, the distillation is accelerated, the production efficiency is improved, the external motor is not required for driving, the cost and the energy are saved to a certain extent, and the practicability is high.

Description

Distillation tower for producing drug intermediate

Technical Field

The utility model relates to the technical field of biological pharmaceutical processing, in particular to a distillation tower for producing a drug intermediate.

Background

The production process of the chemical medicine consists of two parts of raw material medicine production and pharmaceutical preparation production; the raw material medicine is the material basis of medicine production, but must be processed into a pharmaceutical preparation suitable for taking to become a medicine; the pharmaceutical industry is a department of national economy and a social welfare cause for treating diseases, preventing diseases, protecting health and planning birth; after preparing acetophenone which is one of drug preparation intermediates, benzene is recovered by normal pressure distillation, and fractions at the temperature of 199-.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides the distillation tower for producing the drug intermediate, the distilled water can be used for refluxing to drive the fan to rotate, so that the airflow in the distillation tower is driven to flow at an accelerated speed, the distillation is accelerated, the production efficiency is improved, the external motor is not required for driving, the cost and the energy are saved to a certain extent, and the practicability is high.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a distillation tower for producing a drug intermediate comprises a distillation tower body, a distillation tube, a heating tank and a plurality of reflux tanks, wherein the heating tank is arranged on the lower bottom surface in the distillation tower body; the plurality of reflux grooves are groove bodies formed by L-shaped plates and the inner wall of the distillation tower body respectively, two adjacent reflux grooves are arranged in a staggered mode, and an airflow acceleration structure is arranged between each L-shaped plate and the distillation tower body; a feed inlet is arranged at the center of the distillation tower body; surface mounting has the collection mouth on the distillation column body, collect the mouth and be connected with the one end of distillation tube, the other end of distillation tube is connected with the back flow respectively and arranges the material pipe, arranges and installs first control valve on the material pipe, install the second control valve on the back flow, the back flow is connected with the inside upper end of distillation column body, install steam collecting box and cooling compressor on the distillation tube in proper order.

Preferably, the airflow accelerating structure comprises four fan plates and a rotating shaft, two ends of the rotating shaft are mounted between the L-shaped plate and the distillation tower body through bearings, the four fan plates are mounted on the side wall of the rotating shaft at equal angles, a plurality of water receiving grooves which are uniformly distributed are formed in each fan plate, and the mounting direction of each water receiving groove on each fan plate is the same.

Preferably, the L-shaped plate vertical end just corresponds the water receiving tank water receiving direction and has seted up the arc mouth, the arc mouth bottom is less than the vertical edge of serving of L-shaped plate, installs the drainage plate in the arc mouth, drainage plate water outlet end corresponds fan plate central point and puts.

Preferably, the drainage plate forms an angle of 10-30 degrees with the horizontal direction.

Preferably, the shape of the collecting opening is an inverted funnel shape.

Preferably, the lower half part of the outer part of the distillation tower body is provided with heat preservation cotton.

The utility model provides a distillation tower for producing a drug intermediate, which has the following beneficial effects:

1. the utility model can utilize the reflux distilled water to fall under the action of gravity to drive the fan to rotate, thereby driving the airflow in the distillation tower to flow at an accelerated speed, accelerating the collection and cooling of steam, and improving the speed of extracting raw materials and the efficiency of producing products;

2. the fan of the utility model does not need external power to drive, thus saving production cost and a large amount of energy to a certain extent and having strong practicability; the temperature of the lower half part of the distillation tower is ensured by the heat insulation cotton so as to prevent the heat from being dissipated too fast and wasting energy.

Drawings

FIG. 1 is a schematic front sectional view of a distillation column for producing a pharmaceutical intermediate of the present invention.

FIG. 2 is a top sectional view schematically showing the present invention at A-A.

Fig. 3 is a left side view of the fan plate according to the present invention.

Fig. 4 is an enlarged view of the schematic diagram of fig. 3 according to the present invention.

In the figure: 1. a heating tank; 2. a distillation column body; 3. heat preservation cotton; 4. a fan plate; 5. a bearing; 6. a water receiving tank; 7. a feed inlet; 8. a return pipe; 9. a second control valve; 10. a discharge pipe; 11. a first control valve; 12. cooling the compressor; 13. a steam collecting box; 14. a distillation tube; 15. a collection port; 16. an L-shaped plate; 17. a rotating shaft; 18. a reflux tank; 19. a drainage plate; 20. an arc-shaped opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, a distillation column for producing a pharmaceutical intermediate comprises a distillation column body 2, a distillation tube 14, a heating tank 1 and a plurality of reflux tanks 18, the heating tank 1 being installed in the lower bottom inside the distillation column body 2; the reflux grooves 18 are groove bodies formed by L-shaped plates 16 and the inner wall of the distillation tower body 2 respectively, adjacent two reflux grooves 18 are arranged in a staggered mode, and an airflow acceleration structure is arranged between each L-shaped plate 16 and the distillation tower body 2; a feed inlet 7 is arranged at the center of the distillation tower body 2; the upper surface of the distillation tower body 2 is provided with a collecting port 15, the collecting port 15 is connected with one end of a distillation pipe 14, the other end of the distillation pipe 14 is respectively connected with a return pipe 8 and a discharge pipe 10, the discharge pipe 10 is provided with a first control valve 11, the return pipe 8 is provided with a second control valve 9, the return pipe 8 is connected with the upper end inside the distillation tower body 2, and the distillation pipe 14 is sequentially provided with a steam collecting box 13 and a cooling compressor 12; the structure for accelerating airflow flow comprises four fan plates 4 and a rotating shaft 17, wherein two ends of the rotating shaft 17 are arranged between an L-shaped plate 16 and a distillation tower body 2 through bearings 5, the four fan plates 4 are arranged on the side wall of the rotating shaft 17 at equal angles, a plurality of water receiving grooves 6 which are uniformly distributed are formed in each fan plate 4, and the installation directions of the water receiving grooves 6 on the fan plates 4 are the same; an arc-shaped opening 20 is formed in the vertical end of the L-shaped plate 16 and corresponds to the water receiving direction of the water receiving groove 6, the bottom end of the arc-shaped opening 20 is lower than the upper edge of the vertical end of the L-shaped plate 16, a drainage plate 19 is installed in the arc-shaped opening 20, and the water outlet end of the drainage plate 19 corresponds to the center of the fan plate 4; the drainage plate 19 forms an angle of 10-30 degrees with the horizontal direction; the collecting port 15 is in an inverted funnel shape; the lower half part of the outside of the distillation tower body 2 is provided with heat preservation cotton 3.

The detailed connection means is a technique known in the art, and the following main description is provided for the working principle and process, and specifically provided for the following:

as can be seen from the attached figures 1-4 in the specification, the cooling compressor 12 and the heating tank 1 are both connected with an external electric control system through wires; when in use, the first control valve 11 and the second control valve 9 are closed, and the solution to be distilled is poured from the feed inlet 7; the heating tank 1 is opened to heat the solution, and the heat preservation cotton 3 outside the distillation tower body 2 is used for preserving the heat of the bottom of the device, so that the temperature is prevented from being dissipated, and energy is wasted; as the temperature rises, the solution starts to vaporize, rises continuously along the edge of the fan plate 4 and enters the collecting port 15, and the steam is easily collected because the collecting port 15 is in an inverted funnel shape; the steam enters a distillation pipe 14 through a collecting port 15, then enters a steam collecting box 13, is further processed by a cooling compressor 12, is liquefied, and enters a return pipe 8 and a discharge pipe 10, and a first control valve 11 and a second control valve 9 are adjusted to ensure that part of the liquid flows out of the discharge pipe 10 for collection and part of the liquid flows back to a return tank 18 in the distillation tower body 2 from the return pipe 8; along with the increase of the backflow liquid, the liquid level in the backflow groove 18 rises until the liquid flows out along the arc-shaped opening 20 at the vertical end of the L-shaped plate 16, the flowing-out liquid is guided to one side of the groove of the water receiving groove 6 of the fan plate 4 by the guide plate 19, the liquid flowing downwards is accumulated in the water receiving groove 6 of the fan plate 4, and under the action of gravity, the liquid flowing downwards hits the fan plate 4, and because the fan plate 4 is rotatably connected between the L-shaped plate 16 and the distillation tower body 2 through the rotating shaft 17 and the bearing 5, the fan plate 4 is driven to rotate, the rotating fan plate 4 accelerates the air flow in the distillation tower body 2 and accelerates the evaporation of the solution in the heating groove 1, and simultaneously the rotating fan plate 4 enables the evaporated steam to rapidly reach the collecting opening 15 and be liquefied by the cooling compressor 12 through the distillation pipe 14, thereby greatly improving the distillation efficiency of the device, and the rotation of the fan plate 4 does not need external power support, saving energy and cost.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A distillation tower for producing pharmaceutical intermediates, comprising a distillation tower body (2), a distillation tube (14), a heating tank (1) and a plurality of reflux tanks (18), wherein the heating tank (1) is installed at the lower bottom surface inside the distillation tower body (2); the reflux grooves (18) are groove bodies formed by L-shaped plates (16) and the inner wall of the distillation tower body (2), two adjacent reflux grooves (18) are arranged in a staggered mode, and an airflow acceleration structure is arranged between each L-shaped plate (16) and the distillation tower body (2); a feed inlet (7) is arranged at the center of the distillation tower body (2); surface mounting has collection mouth (15) on distillation column body (2), collect mouth (15) and be connected with the one end of distillation tube (14), the other end of distillation tube (14) is connected with back flow (8) and row's material pipe (10) respectively, arranges and installs first control valve (11) on material pipe (10), install second control valve (9) on back flow (8), back flow (8) are connected with distillation column body (2) inside upper end, install steam collecting box (13) and cooling compressor (12) on distillation tube (14) in proper order.

2. The distillation tower for producing the pharmaceutical intermediate according to claim 1, wherein the structure for accelerating the flow of the air stream comprises four fan plates (4) and a rotating shaft (17), two ends of the rotating shaft (17) are installed between the L-shaped plate (16) and the distillation tower body (2) through bearings (5), the four fan plates (4) are installed on the side wall of the rotating shaft (17) at equal angles, each fan plate (4) is provided with a plurality of water receiving grooves (6) which are uniformly distributed, and the installation direction of each water receiving groove (6) on the fan plate (4) is the same.

3. The distillation tower for producing the drug intermediate according to claim 2, wherein an arc-shaped opening (20) is formed in the vertical end of the L-shaped plate (16) and corresponds to the water receiving direction of the water receiving groove (6), the bottom end of the arc-shaped opening (20) is lower than the upper edge of the vertical end of the L-shaped plate (16), a drainage plate (19) is installed in the arc-shaped opening (20), and the water outlet end of the drainage plate (19) corresponds to the central position of the fan plate (4).

4. A distillation column for the production of pharmaceutical intermediates according to claim 3, wherein the flow guide plate (19) is at an angle of 10-30 degrees to the horizontal.

5. A distillation column for producing pharmaceutical intermediates, according to claim 1, wherein the shape of the collection port (15) is inverted funnel shaped.

6. A distillation column for the production of pharmaceutical intermediates according to claim 1, wherein the lower external half of the distillation column body (2) is fitted with insulation cotton (3).