CN210302473U

CN210302473U - Double-tower rectification device for 2-ethoxypropylene

Info

Publication number: CN210302473U
Application number: CN201921147768.6U
Authority: CN
Inventors: 张豪
Original assignee: Anhui Weichi Chemical Co ltd
Current assignee: Anhui Weichi Chemical Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-14
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a 2-ethoxy propylene's double tower rectifier unit, including first rectifying column, second rectifying column and support frame, the lower extreme of first rectifying column and second rectifying column is equipped with the support frame, the support frame includes main support, slide rail, auxiliary stand and auxiliary stand, the lower extreme of first rectifying column, second rectifying column is connected with the main support of U type through the cylinder, there is the auxiliary stand through slide rail sliding connection on the inner wall of main support, two pipeline mouths have all been seted up on the lateral wall of first rectifying column and second rectifying column, the pipeline mouth passes through spout slide, the installing port has been seted up at the middle part of spout. The height of two rectifying towers is adjusted through the air cylinder, so that the internal connecting layers of the two rectifying towers are mutually alternated, the staggered operation is quick, the mixing of 2-ethoxypropylene with different purities is avoided, the rectifying efficiency and the rectifying quality are improved, the pipeline opening formed on the side wall of the rectifying tower is reduced, and the sealing performance is improved.

Description

Double-tower rectification device for 2-ethoxypropylene

Technical Field

The utility model relates to a rectifier unit technical field especially relates to a two tower rectifier units of 2-ethoxy propylene.

Background

2-ethoxy propylene (EPP) is colorless and transparent liquid with special odor, is insoluble in water, is soluble in various organic solvents such as ketone, alcohol and the like, has a boiling point of 62-64 ℃, is a medical intermediate of traditional Chinese medicines, and currently, 2-ethoxy propylene is replaced by the EPP step by step to become a key intermediate for synthesizing clarithromycin, so that the market demand is large, and a large amount of 2-ethoxy propylene needs to be prepared, wherein in the rectification treatment adopted for removing one molecule of ethanol from 2, 2-diethoxy propane at high temperature to obtain 2-ethoxy propylene, the rectification efficiency is low, and the purity is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two tower rectifier units of 2-ethoxy propylene possesses high efficiency, high-quality characteristics, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a 2-ethoxy propylene's double-tower rectifier unit, includes first rectifying column, second rectifying column and support frame, first rectifying column is located one side of second rectifying column, first rectifying column includes baffle, upper cover and lower cover, the middle part of first rectifying column is equipped with annular a baffle, the upper cover is located the upper end of first rectifying column, the lower cover is located the lower extreme of first rectifying column, the lower extreme of first rectifying column and second rectifying column is equipped with the support frame, the support frame includes main support, slide rail, auxiliary stand and auxiliary stand, the lower extreme of first rectifying column, second rectifying column is connected with the main support of U type through the cylinder, there is the auxiliary stand through slide rail sliding connection on the inner wall of main support, the upper end of auxiliary stand is connected with the upper cover, the lower extreme of auxiliary stand is connected with the lower cover, the middle part of auxiliary stand is equipped with the auxiliary stand, one end of the auxiliary bracket is abutted against the side wall of the partition plate;

two pipeline mouths, four have all been seted up on the lateral wall of first rectifying column and second rectifying column the pipeline mouth is connected with the slide, the slide includes spout and installing port, the pipeline mouth passes through spout slide sliding plate, the installing port has been seted up at the middle part of spout.

Preferably, the first rectifying column and the second rectifying column have the same structure.

Preferably, the pipeline mouths are four in number, and are distributed on two sides of the sliding plate in pairs, one end of each pipeline mouth is provided with an annular clamping ring, and the clamping rings are connected with sliding grooves in an embedded mode.

Preferably, the number of the mounting ports is four, and the mounting ports are connected with the pipeline ports.

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

the utility model discloses a 2-ethoxy propylene double-tower rectifying device, which drives a first rectifying tower or a second rectifying tower to ascend and descend along a slide rail through a cylinder, the pipeline port ascends and descends along a chute on the slide plate when the slide rail ascends and descends, the height of the two rectifying towers is adjusted by the cylinder, the internal connecting layers of the two towers can be mutually alternated (for example, the bottom layer of the first rectifying tower is connected with the upper layer of the second rectifying tower), the interleaving operation is rapid, purified substances can be directly fed into a post-treatment stage during the reaction period with higher rectifying purity, the purified substances are discharged into the lower layer of the second rectifying tower during the reaction period with more impurities, the secondary rectification is carried out, the mixing of 2-ethoxy propylene with different purity is avoided, the rectification efficiency and the rectification quality are improved, and the replacement of internal reactants can be realized through the pipeline which is interleaved to the discharged substances and entered into the raw materials, the pipeline openings formed on the side wall of the rectifying tower are reduced, and the sealing performance is improved.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a view of the first rectifying tower structure of the present invention;

FIG. 3 is a structural view of the slide plate of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a first rectification column; 2. a second rectification column; 3. a support frame; 31. a main support; 32. a slide rail; 33. a sub-mount; 34. an auxiliary support; 4. a partition plate; 5. a cylinder; 6. a pipe orifice; 61. a collar; 7. a slide plate; 71. a chute; 72. an installation port; 8. an upper cover; 9. and (7) a lower cover.

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.

Referring to fig. 1-2, a double-tower rectification device of 2-ethoxypropylene comprises a first rectification tower 1, a second rectification tower 2 and a support frame 3, wherein the first rectification tower 1 is located at one side of the second rectification tower 2, the first rectification tower 1 comprises a partition plate 4, an upper cover 8 and a lower cover 9, the middle part of the first rectification tower 1 is provided with an annular partition plate 4, the upper cover 8 is located at the upper end of the first rectification tower 1, the lower cover 9 is located at the lower end of the first rectification tower 1, the support frame 3 is arranged at the lower ends of the first rectification tower 1 and the second rectification tower 2, the support frame 3 comprises a main support 31, a slide rail 32, an auxiliary support 33 and an auxiliary support 34, the lower ends of the first rectification tower 1 and the second rectification tower 2 are connected with a U-shaped main support 31 through an air cylinder 5, the air cylinder 5 drives the first rectification tower 1 or the second rectification tower 2 to move up and down along the slide rail 32, the slide rail 32 moves up and down to enable a pipeline port 6 to move up and down along a chute 71 on a slide plate 7, utilize cylinder 5 to adjust the height of two rectifying column, then can make two tower body internal connection layer alternate each other for example: the bottom layer of the first rectifying tower 1 is connected with the high layer of the second rectifying tower 2, the staggered operation is rapid, the purified substances can be directly fed into the post-treatment stage during the reaction period with higher rectifying purity, the purified substances are discharged into the lower layer of the second rectifying tower 2 during the reaction period with more impurities for secondary rectification, the mixing of 2-ethoxy propylene with different purity is avoided, the rectification efficiency and the rectification quality are improved, an auxiliary bracket 33 is connected on the inner wall of the main bracket 31 in a sliding way through a sliding rail 32, the upper end of the auxiliary bracket 33 is connected with an upper cover 8, the lower end of the auxiliary bracket 33 is connected with a lower cover 9, the auxiliary bracket 33 and the auxiliary bracket 34 are used for supporting, the rectifying tower is ensured to be kept in a stable state during the lifting process, the auxiliary bracket 34 is arranged in the middle part of the auxiliary bracket 33, one end of the auxiliary bracket 34 is abutted against the side wall of the partition plate 4, the structures of the first rectifying tower 1 and, two pipeline mouths 6 have all been seted up on the lateral wall of first rectifying column 1 and second rectifying column 2, and four pipeline mouths 6 are connected with slide 7, and pipeline mouth 6 all is equipped with the valve, at crisscross slip in-process, valve department and closure state to two pipeline mouths 6 and kneck are equipped with the sealing washer, guarantee the leakproofness.

Referring to fig. 3-4, the sliding plate 7 includes a sliding slot 71 and a mounting port 72, the pipeline port 6 slides the sliding plate 7 through the sliding slot 71, the mounting port 72 is provided in the middle of the sliding slot 71, four pipeline ports 6 are provided, and two pipeline ports are distributed on two sides of the sliding plate 7, an annular collar 61 is provided at one end of the pipeline port 6, the collar 61 is connected to the sliding slot 71 in a snap-fit manner, the collar 61 ensures that the pipeline port 6 does not fall off from the sliding plate 7 in the sliding process, four mounting ports 72 are provided, the mounting ports 72 are connected to the pipeline port 6, a sealing ring is provided at the connection of the pipeline port 6 and the mounting port 72, so as to ensure the sealing performance, the replacement of internal reactants can be realized by staggering the pipeline ports for discharging substances and entering raw materials, the pipeline port 6 provided on.

In summary, the following steps: the utility model discloses a 2-ethoxy propylene's double-tower rectifier, through cylinder 5 drive first rectifying column 1 or second rectifying column 2 along slide rail 32 lift, make pipeline mouth 6 along the spout 71 on slide 7 lift at slide rail 32 lift, utilize cylinder 5 to adjust the height of two rectifying columns, then can make two tower body internal connection layers alternate each other (for example: connect the bottom layer of first rectifying column 1 with the high level of second rectifying column 2), the interleaving operation is fast, can directly enter the post-processing stage with the material of purification during the reaction period that rectification purity is higher, to discharging into the lower floor of second rectifying column 2 during the reaction period that contains more impurity, carry out the secondary rectification, avoid different purity 2-ethoxy propylene to mix, the rectification efficiency is improved, and rectification quality, and can realize the change of internal reactant through the pipeline that interleaves to discharging material and entering raw materials, the pipeline opening 6 arranged on the side wall of the rectifying tower is reduced, and the sealing performance is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two tower rectifier unit of 2-ethoxy propylene, includes first rectifying column (1), second rectifying column (2) and support frame (3), its characterized in that: the first rectifying tower (1) is positioned on one side of the second rectifying tower (2), the first rectifying tower (1) comprises a partition plate (4), an upper cover (8) and a lower cover (9), the middle part of the first rectifying tower (1) is provided with an annular partition plate (4), the upper cover (8) is positioned at the upper end of the first rectifying tower (1), the lower cover (9) is positioned at the lower end of the first rectifying tower (1), the lower ends of the first rectifying tower (1) and the second rectifying tower (2) are provided with a support frame (3), the support frame (3) comprises a main support (31), a sliding rail (32), an auxiliary support (33) and an auxiliary support (34), the lower ends of the first rectifying tower (1) and the second rectifying tower (2) are connected with the main support (31) in a U shape through a cylinder (5), the inner wall of the support (31) is connected with the auxiliary support (33) through the sliding rail (32), the upper end of the auxiliary support (33) is connected with an upper cover (8), the lower end of the auxiliary support (33) is connected with a lower cover (9), an auxiliary support (34) is arranged in the middle of the auxiliary support (33), and one end of the auxiliary support (34) abuts against the side wall of the partition plate (4);

two pipeline mouths (6), four have all been seted up on the lateral wall of first rectifying column (1) and second rectifying column (2) pipeline mouth (6) are connected with slide (7), slide (7) include spout (71) and installing port (72), pipeline mouth (6) are through spout (71) slide (7), installing port (72) have been seted up at the middle part of spout (71).

2. The double-tower rectification device of 2-ethoxypropene according to claim 1, characterized in that: the first rectifying tower (1) and the second rectifying tower (2) are identical in structure.

3. The double-tower rectification device of 2-ethoxypropene according to claim 1, characterized in that: pipeline mouth (6) are total four, and two liang of distributions are in the both sides of slide (7), and the one end of pipeline mouth (6) is equipped with annular rand (61), and rand (61) inlay card is connected with spout (71).

4. The double-tower rectification device of 2-ethoxypropene according to claim 1, characterized in that: the number of the mounting ports (72) is four, and the mounting ports (72) are connected with the pipeline port (6).