CN210813976U

CN210813976U - Distillation device for producing di-tetra-difluoronitrobenzene

Info

Publication number: CN210813976U
Application number: CN201921571233.1U
Authority: CN
Inventors: 张雪林
Original assignee: Zhejiang Jiade Fine Chemical Co ltd
Current assignee: Zhejiang Jiade Fine Chemical Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-06-23
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to the technical field of production of di-and tetra-difluoronitrobenzene, in particular to a distillation device for producing di-and tetra-difluoronitrobenzene, which comprises a base, a distillation box is fixed on the outer wall of the top of the base through bolts, an exhaust fan is fixed on the outer wall of the top of the distillation box through bolts, the air inlet end of the exhaust fan is connected with an exhaust pipe through a flange, one end of the exhaust pipe, which is far away from the exhaust fan, extends into the distillation box, the air outlet end of the exhaust fan is connected with an air outlet pipe through a flange, a fixed groove is arranged on the outer wall of the top of the base, which is close to the central position, a motor is fixed inside the fixed groove through bolts, the end part of an output shaft of the motor is coaxially connected with a rotating shaft, the rotating shaft extends into the distillation box, a plurality of stirring rods are welded, the evaporation speed of the raw materials is accelerated, the distillation time is shortened, and the working efficiency is improved.

Description

Distillation device for producing di-tetra-difluoronitrobenzene

Technical Field

The utility model relates to a two, four-difluoronitrobenzene production technical field, specifically speaking relates to a two, four-difluoronitrobenzene distillation plant for production.

Background

The di-tetrafluoronitrobenzene and the tetra-difluoronitrobenzene are light yellow transparent liquid and can be used as intermediates of medicines or pesticides, and the di-difluoronitrobenzene and the tetra-difluoronitrobenzene are produced by distillation, however, the distillation device for producing the di-difluoronitrobenzene and the tetra-difluoronitrobenzene at present has the defects of low distillation speed, low production efficiency, easy generation of gas reflux phenomenon during distillation and no contribution to the distillation work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a distillation plant is used in two, four-difluoronitrobenzene production to solve some or some defects that propose in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a distillation device for producing di-tetrafluoronitrobenzene and tetra-difluoronitrobenzene comprises a base, wherein a distillation box is fixed on the outer wall of the top of the base through bolts, an exhaust fan is fixed on the outer wall of the top of the distillation box through a bolt, the air inlet end of the exhaust fan is connected with an exhaust pipe through a flange, one end of the exhaust pipe, which is far away from the exhaust fan, extends to the interior of the distillation box, the air outlet end of the exhaust fan is connected with an air outlet pipe through a flange, a fixed groove is arranged on the outer wall of the top of the base close to the center, a motor is fixed inside the fixed groove through a bolt, the end part of the output shaft of the motor is coaxially connected with a rotating shaft which extends to the inside of the distillation box, the circumference outer wall of pivot is located both sides department and all welds and has a plurality of puddlers, be fixed with the heater through the bolt on the circumference outer wall of distillation case.

Preferably, a filter screen plate is fixed on the circumferential inner wall of the distillation box close to the top through bolts.

Preferably, the outer wall of the bottom of the base is close to four corners and is fixedly provided with supporting legs through bolts.

Preferably, the outlet duct is kept away from the one end of air exhauster is equipped with condensation mechanism, condensation mechanism includes the outer tube, the inside of outer tube is equipped with the inner tube, the both ends of inner tube all extend to the outside of outer tube, the outer tube with the inner tube is the integrated into one piece structure, the outer tube with be equipped with the cooling chamber between the inner tube, the air inlet has been seted up on the circumference outer wall of outer tube, and the welding has the intake pipe on the inner wall of air inlet, the one end of inner tube with through flange fixed connection between the one end of outlet duct, the other end of inner tube has the discharging pipe through flange joint.

Preferably, the circumference outer wall of distillation case is close to top department and has seted up the inlet, and has welded the feed liquor pipe on the inner wall of inlet, the circumference outer wall of distillation case is close to bottom department and has seted up the liquid outlet, and has welded the drain pipe on the inner wall of liquid outlet.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in this distillation plant is used in two, four-difluoronitrobenzene production, through the setting of motor, pivot and puddler, can stir the raw materials for the raw materials is heated more evenly, has accelerated the evaporation rate of raw materials, has shortened the distillation time, has improved work efficiency.

2. In the distillation device for producing the di-tetrafluoronitrobenzene and the tetra-difluoronitrobenzene, the arrangement of the exhaust fan can extract evaporated gas, prevent the steam from generating a reflux phenomenon and facilitate the distillation work.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic sectional view of a part of a distillation tank in example 1;

FIG. 3 is an enlarged schematic view of the structure at A in example 1;

fig. 4 is a partial sectional view of the outer tube in embodiment 1.

In the figure: 1. a base; 10. fixing grooves; 11. supporting legs; 12. a motor; 13. a rotating shaft; 14. a stirring rod; 2. a distillation box; 20. a liquid inlet pipe; 21. a liquid outlet pipe; 22. a filter screen plate; 23. an exhaust fan; 230. an air exhaust pipe; 231. an air outlet pipe; 24. a heater; 3. a condensing mechanism; 30. an outer tube; 31. an inner tube; 32. a cooling chamber; 33. an air inlet pipe; 4. and (4) discharging the pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

In the second kind of the method, distillation plant is used in production of four-difluoronitrobenzene, as shown in fig. 1-4, including base 1, there is distillation box 2 through the bolt fastening on base 1's the top outer wall, there is air exhauster 23 through the bolt fastening on distillation box 2's the top outer wall, there is exhaust tube 230 air inlet end of air exhauster 23 through flange joint, exhaust tube 230 keeps away from the inside that one end of air exhauster 23 extends to distillation box 2, there is outlet duct 231 air outlet end through flange joint of air exhauster 23, base 1's the top outer wall is close to central point department and has seted up fixed slot 10, there is motor 12 inside fixed slot 10 through the bolt fastening, there is pivot 13 motor 12's output shaft end coaxial coupling, pivot 13 extends to distillation box 2's inside, the circumference outer wall of pivot 13 is located that both sides department all welds and has a plurality of puddlers 14, there is heater 24 through the bolt fastening on distillation box 2.

In this embodiment, the inner wall of the circumference of the distillation box 2 is fixed with the filter screen plate 22 near the top by bolts, and the impurity particles contained in the raw material steam can be filtered by the filter screen plate 22, so that the produced product has better quality.

Specifically, the outer wall of the bottom of the base 1 is close to four corners and is fixedly provided with supporting legs 11 through bolts, and the supporting legs 11 can stably support the base 1, so that the stability of the base is enhanced.

Further, the one end that air exhauster 23 was kept away from to outlet duct 231 is equipped with condensation mechanism 3, condensation mechanism 3 includes outer tube 30, the inside of outer tube 30 is equipped with inner tube 31, the both ends of inner tube 31 all extend to the outside of outer tube 30, outer tube 30 and inner tube 31 are the integrated into one piece structure, be equipped with cooling chamber 32 between outer tube 30 and the inner tube 31, the air inlet has been seted up on the circumference outer wall of outer tube 30, and the welding has intake pipe 33 on the inner wall of air inlet, through flange fixed connection between the one end of inner tube 31 and the one end of outlet duct 231, the other end of inner tube 31 has discharging pipe 4 through flange connection, add appropriate amount air conditioning in to cooling chamber 32 through intake pipe 33, can become liquid with the hot steam condensation through inner tube 31 through air conditioning.

Besides, a liquid inlet is formed in the position, close to the top, of the circumferential outer wall of the distillation box 2, a liquid inlet pipe 20 is welded to the inner wall of the liquid inlet, raw materials for distillation production of di-fluoro nitrobenzene and tetra-fluoro nitrobenzene can be added into the distillation box 2 through the liquid inlet pipe 20, a liquid outlet is formed in the position, close to the bottom, of the circumferential outer wall of the distillation box 2, a liquid outlet pipe 21 is welded to the inner wall of the liquid outlet, and distilled waste liquid can be discharged through the liquid outlet pipe 21.

It should be noted that the motor 12 can be a motor of 57HB76-401A type manufactured by deuxuan motor limited company, le qing, and its matching circuit and power supply can also be provided by the manufacturer, the exhaust fan 23 can be an exhaust fan of GP-180 type manufactured by nying sheng fenglong mechanical science and technology limited company, and its matching circuit and power supply can also be provided by the manufacturer, the heater 24 can be a heater of TH1508A type manufactured by qingdaotai and american electronics technology limited company, and its matching circuit and power supply can also be provided by the manufacturer; furthermore, the present invention relates to the motor 12, the exhaust fan 23 and the heater 24, which are all the prior art, and can be implemented by those skilled in the art without exception, and the protection of the present invention does not relate to the improvement of the structure and the working principle of the motor 12, the exhaust fan 23 and the heater 24.

When the distillation device for producing the di-fluoronitrobenzene and the tetra-fluoronitrobenzene is used, the motor 12, the exhaust fan 23 and the heater 24 are sequentially connected with an external power supply and work, then a proper amount of raw materials for producing the di-fluoronitrobenzene and the tetra-fluoronitrobenzene are added into the distillation box 2 through the liquid inlet pipe 20, the raw materials can be heated and evaporated into steam through the heater 24, the motor 12 can drive the rotating shaft 13 and the stirring rod 14 to rotate, the raw materials can be uniformly stirred, the raw materials are uniformly heated, the evaporation speed is accelerated, the evaporated gas is pumped out by the exhaust fan 23, the steam can be cooled into liquid through cold air in the cooling cavity 32 through the condensing mechanism 3, the discharge can be carried out through the discharge pipe 4, and the distilled waste liquid can be discharged through the discharge pipe 21.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a distillation plant is used in two, four-difluoronitrobenzene production, includes base (1), its characterized in that: the distillation box is characterized in that a distillation box (2) is fixed on the outer wall of the top of the base (1) through bolts, an exhaust fan (23) is fixed on the outer wall of the top of the distillation box (2) through bolts, an air inlet end of the exhaust fan (23) is connected with an exhaust pipe (230) through a flange, one end, far away from the exhaust fan (23), of the exhaust pipe (230) extends to the inside of the distillation box (2), an air outlet end of the exhaust fan (23) is connected with an air outlet pipe (231) through a flange, a fixing groove (10) is formed in the position, close to the central position, of the outer wall of the top of the base (1), a motor (12) is fixed in the fixing groove (10) through bolts, a rotating shaft (13) is coaxially connected to the end part of an output shaft of the motor (12), the rotating shaft (13) extends to the inside of the distillation box (2), a plurality, and a heater (24) is fixed on the circumferential outer wall of the distillation box (2) through bolts.

2. The distillation apparatus for producing di-or tetrafluoronitrobenzene according to claim 1, wherein: and a filter screen plate (22) is fixed on the circumferential inner wall of the distillation box (2) close to the top through bolts.

3. The distillation apparatus for producing di-or tetrafluoronitrobenzene according to claim 1, wherein: the outer wall of the bottom of the base (1) is close to four corners and is fixedly provided with supporting legs (11) through bolts.

4. The distillation apparatus for producing di-or tetrafluoronitrobenzene according to claim 1, wherein: keep away from outlet duct (231) the one end of air exhauster (23) is equipped with condensation mechanism (3), condensation mechanism (3) include outer tube (30), the inside of outer tube (30) is equipped with inner tube (31), the both ends of inner tube (31) all extend to the outside of outer tube (30), outer tube (30) with inner tube (31) are the integrated into one piece structure, outer tube (30) with be equipped with cooling chamber (32) between inner tube (31), the air inlet has been seted up on the circumference outer wall of outer tube (30), and the welding has intake pipe (33) on the inner wall of air inlet, the one end of inner tube (31) with through flange fixed connection between the one end of outlet duct (231), the other end of inner tube (31) has discharging pipe (4) through flange joint.

5. The distillation apparatus for producing di-or tetrafluoronitrobenzene according to claim 1, wherein: the circumference outer wall of distillation case (2) is close to top department and has seted up the inlet, and the welding has feed liquor pipe (20) on the inner wall of inlet, the circumference outer wall of distillation case (2) is close to bottom department and has seted up the liquid outlet, and has welded drain pipe (21) on the inner wall of liquid outlet.