Rectifying tower for MPE refining

Abstract

The utility model relates to the technical field of rectifying towers, and discloses a rectifying tower for MPE refining, which comprises a rectifying tower, a feed port is fixedly mounted on the left side of the rectifying tower, a baffle is fixedly mounted above a filter plate I, a sealing ring is clamped on the outer side of a bolt, and the sealing ring is positioned on the outer side of the rectifying tower. According to the reboiler, the connecting shaft is arranged in the first filter plate, the connecting shaft is rotationally connected into the first filter plate, after materials are injected into the feeding port, the driving blade is pushed to drive the connecting shaft to rotate, the connecting shaft drives the spiral blade to rotate at the moment, and when liquid flows out of the reboiler, the spiral blade is driven to rotate; and meanwhile, due to the fact that the interior of a baffle is meshed with a bolt, when impurities in the rectifying tower are too many, the bolt can be detached through the meshing effect of the bolt and the baffle, and therefore the effect of being convenient to detach and clean is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rectifying tower technical field more specifically, the utility model relates to MPE rectifying tower for refining. BACKGROUND

[0002] MPE is chlorpheniramine maleate key raw material, chlorpheniramine maleate is a kind of strong allergic drug, belongs to histamine H1 receptor antagonist, in the preparation of MPE usually with N-methylpyrrolidone, dimethyl sulfate, ethyl cyanoacetate as raw material, after esterification, catalysis etc. Reaction, with formic acid, sodium nitrite is prepared MPE crude product, the effective content of crude product is low, and there are many impurities, in order to improve the content and quality of MPE, it needs to rectify and refine its crude product. UTILITY MODEL CONTENT

[0003] In order to overcome the deficiencies of the prior art, the utility model provides MPE rectifying tower for refining, has the advantages of reducing impurities, improving refining.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: MPE rectifying tower for refining, including rectifying tower, the left side of the rectifying tower is fixedly installed with feed inlet, the inside of the rectifying tower is equipped with filter plate no.

[0005] As a preferred technical scheme of the utility model, the inside of the rectifying tower is equipped with filter plate no.

[0006] As a preferred technical scheme of the utility model, the bottom of the rectifying tower is fixedly installed with connecting pipe no.

[0007] As a preferred technical scheme of the utility model, the inside of the connecting pipe two is fixedly installed with a support, the left side of the support is fixedly installed with an extension rod, the outside of the extension rod is fixedly installed with a spring, the left side of the spring is fixedly installed with a sealing plate, the inside of the connecting pipe two is fixedly installed with a limiting ring two, the sealing plate is attached to the limiting ring two, and the limiting ring two is located at the left side of the sealing plate.

[0008] As a preferred technical scheme of the utility model, the upper side of the rectifying tower is fixedly installed with a connecting pipe three, one end of the connecting pipe three away from the rectifying tower is fixedly installed with a condenser, the bottom of the condenser is fixedly installed with a connecting pipe four, the bottom of the connecting pipe four is fixedly installed with a reflux tank, the left side of the reflux tank is fixedly installed with a reflux pipe, the reflux pipe is fixedly connected to the rectifying tower, and the right side of the condenser is fixedly installed with a cold water inlet.

[0009] As a preferred technical scheme of the utility model, the driving blades are multiple, the driving blades are located above the filter plate one, and the driving blades are arc-shaped, the filter holes are multiple, and the filter holes are located below the driving blades.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] 1、The utility model discloses a connecting shaft is seted up in the inside of filter plate one, and is rotatably connected with the connecting shaft in the inside of filter plate one, and the driving blade, the limiting ring one and the spiral blade are fixedly installed on the outside of the connecting shaft, after the material is injected to the feed inlet, the driving blade is pushed and the connecting shaft is driven to rotate, at this time, the connecting shaft drives the spiral blade to rotate, when the liquid flows out from the inside of the reboiler, is dispersed by the spiral blade, reaches the effect that raw materials are mixed conveniently, improves the refining efficiency, and simultaneously, because the inside of the baffle is engaged with the bolt, when the impurities in the rectifying tower are too much, the bolt can be disassembled through the engagement with the baffle, so that the effect that the cleaning is convenient to disassemble is reached.

[0012] 2, the utility model discloses a inside fixed mounting has support through connecting pipe no. 2, the left side fixed mounting of support has telescopic link, the outside fixed mounting of telescopic link has spring, the left side fixed mounting of spring has sealing plate, the inside fixed mounting of connecting pipe no. 2 has limit ring no. 2, sealing plate and limit ring no. 2 carry out the adhesion, limit ring no. 2 is located the left side of sealing plate, spring always provides the elasticity and pushes sealing plate to the direction of limit ring no. 2, makes sealing plate to limit ring no. 2 seal, when the inside injection steam of reboiler, the liquid in the inside of reboiler is heated, the pressure of reboiler inside will increase at this time, when the pressure in the inside of reboiler is greater than the elasticity of spring, will push sealing plate to the direction of spring, at this time, liquid and steam will flow into the inside of rectifying tower, reach the situation that the liquid in the inside of reboiler is not reacted completely and is transported the inside of rectifying tower appears, reach the effect of improving reaction. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is whole structure schematic view of the utility model;

[0014] Figure 2 It is whole structure sectional view of the utility model;

[0015] Figure 3 It is the A place structure enlarged schematic view of the utility model Figure 2 ;

[0016] Figure 4 It is the B place structure enlarged schematic view of the utility model Figure 2 ;

[0017] Figure 5 It is the C place structure enlarged schematic view of the utility model Figure 2 .

[0018] In the drawing: 1, rectifying tower;2, feed inlet;3, filter plate one;4, filter hole;5, connecting shaft;6, driving blade;7, limit ring one;8, spiral blade;9, baffle;10, bolt;11, sealing ring;12, filter plate two;13, connecting pipe one;14, reboiler;15, steam port;16, steam condensate outlet;17, blowdown port;18, connecting pipe no. 2;19, support;20, telescopic link;21, spring;22, sealing plate;23, limit ring no. 2;24, connecting pipe three;25, condenser;26, connecting pipe four;27, reflux tank;28, reflux pipe;29, cold water port. DETAILED DESCRIPTION

[0019] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] As shown in Figures 1 to 5 The utility model provides rectifying column for MPE refining, including rectifying column 1, rectifying column 1's left side fixed mounting has feed inlet 2, the inside of rectifying column 1 is equipped with filter plate no. 3, the inside of filter plate no. 3 is equipped with filter hole 4, and the outside of connecting shaft 5 is fixedly installed with driving blade 6 and limit ring no. 7, and limit ring no. 7 is located below driving blade 6 and is located above filter plate no. 3, and the outside of connecting shaft 5 is fixedly installed with spiral blade 8, and spiral blade 8 is located below filter hole 4, and the upper side of filter plate no. 3 is fixedly installed with baffle 9, and the inside of baffle 9 is engaged with bolt 10, and the outside of bolt 10 is connected with sealing ring 11, and sealing ring 11 is located on the outside of rectifying column 1.

[0021] The material quality of sealing ring 11 is soft, mainly for when sealing ring 11 passes through rectifying column 1 and engages with baffle 9, sealing ring 11 and the joint of rectifying column 1 are sealed, prevent liquid from the inside of rectifying column 1 to discharge outward, cause to appear the situation of missing, sealing ring 11 is mainly used for fixing filter plate no. 3, so that filter plate no. 3 is convenient to install and has the effect of convenient disassembly and cleaning.

[0022] Wherein, the inside of rectifying column 1 is equipped with filter plate no. 2 12, and filter plate no. 2 12 is located below filter plate no. 3, and filter plate no. 2 12 is circular and the diameter of filter plate no. 2 12 is equal to that of filter plate no. 3.

[0023] The main role of filter plate no. 2 12 is to filter the mixed material above, so that the liquid flowing downward has the effect of being filtered.

[0024] Wherein, the bottom of rectifying column 1 is fixedly installed with connecting pipe no. 1 13, and the end, away from rectifying column 1, of connecting pipe no. 1 13 is fixedly installed with reboiler 14, and the outside of the upper side of reboiler 14 is fixedly installed with steam port 15, steam condensate outlet 16 and blowdown port 17, and steam port 15 is located above steam condensate outlet 16, and steam condensate outlet 16 is located above blowdown port 17, and the upper side of reboiler 14 is fixedly installed with connecting pipe no. 2 18, and connecting pipe no. 2 18 is fixedly connected with rectifying column 1.

[0025] The steam port 15 mainly functions to inject steam into the inside of the reboiler 14, so that the liquid in the inside of the reboiler 14 is heated to generate gas, which is then injected into the inside of the rectifying tower 1 through the connecting pipe II 18, thereby achieving the effect of having a refining effect.

[0026] The inside of the connecting pipe II 18 is fixedly installed with a bracket 19, the left side of the bracket 19 is fixedly installed with an extension rod 20, the outside of the extension rod 20 is fixedly installed with a spring 21, the left side of the spring 21 is fixedly installed with a sealing plate 22, the inside of the connecting pipe II 18 is fixedly installed with a limiting ring II 23, the sealing plate 22 is attached to the limiting ring II 23, and the limiting ring II 23 is located on the left side of the sealing plate 22.

[0027] The spring 21 always provides an elastic force to push the sealing plate 22 towards the limiting ring II 23, so that the sealing plate 22 seals the limiting ring II 23, when the inside of the reboiler 14 is injected with steam, the liquid in the inside of the reboiler 14 is heated, at this time, the pressure in the inside of the reboiler 14 will increase, when the pressure in the inside of the reboiler 14 is greater than the elastic force of the spring 21, the sealing plate 22 will be pushed towards the spring 21, at this time, the liquid and the steam will flow into the inside of the rectifying tower 1, thereby preventing the liquid in the inside of the reboiler 14 from being incompletely reacted and then being transported into the inside of the rectifying tower 1, and improving the effect of the reaction.

[0028] The upper side of the rectifying tower 1 is fixedly installed with a connecting pipe III 24, the end of the connecting pipe III 24 away from the rectifying tower 1 is fixedly installed with a condenser 25, the bottom of the condenser 25 is fixedly installed with a connecting pipe IV 26, the bottom of the connecting pipe IV 26 is fixedly installed with a reflux tank 27, the left side of the reflux tank 27 is fixedly installed with a reflux pipe 28, the reflux pipe 28 is fixedly connected to the rectifying tower 1, and the right side of the condenser 25 is fixedly installed with a cold water inlet 29.

[0029] The main function of the condenser 25 is to condense the steam rising in the inside of the rectifying tower 1, so that the raw materials in the steam are cooled to form liquid, thereby facilitating the collection of the materials.

[0030] The driving blades 6 are multiple, the driving blades 6 are located above the filter plate I 3 and are arc-shaped, and the filter holes 4 are multiple and located below the driving blades 6.

[0031] The main function of the multiple driving blades 6 is that when the raw materials in the liquid are injected into the inside of the feeding inlet 2, the multiple driving blades 6 are pushed to drive the connecting shaft 5 to rotate, at this time, the connecting shaft 5 drives the spiral blade 8 to rotate, when the liquid flows out of the inside of the multiple reboilers 14, the liquid is dispersed by the spiral blade 8, thereby facilitating the mixing of the raw materials.

[0032] The working principle and use process of the utility model are as follows:

[0033] Firstly, the connecting shaft 5 is arranged in the filter plate one 3, and the connecting shaft 5 is rotatably connected in the filter plate one 3, the driving blade 6, the limiting ring one 7 and the spiral blade 8 are fixedly installed on the outer side of the connecting shaft 5, when the material is injected into the feeding port 2, the driving blade 6 is pushed to drive the connecting shaft 5 to rotate, at this time, the connecting shaft 5 drives the spiral blade 8 to rotate, when the liquid flows out from the inside of the reboiler 14, the liquid is dispersed by the spiral blade 8, so that the raw materials are mixed conveniently, and the refining efficiency is improved;

[0034] Meanwhile, the inner part of the baffle 9 is engaged with the bolt 10, when the impurities in the rectifying tower 1 are too much, the bolt 10 can be disassembled through the engagement with the baffle 9, so that the effect of convenient disassembly and cleaning is achieved;

[0035] Finally, the bracket 19 is fixedly installed in the connecting pipe two 18, the telescopic rod 20 is fixedly installed on the left side of the bracket 19, the spring 21 is fixedly installed on the outer side of the telescopic rod 20, the sealing plate 22 is fixedly installed on the left side of the spring 21, the limiting ring two 23 is fixedly installed in the connecting pipe two 18, the sealing plate 22 is attached to the limiting ring two 23, the limiting ring two 23 is located on the left side of the sealing plate 22, the spring 21 always provides elastic force to push the sealing plate 22 to the direction of the limiting ring two 23, so that the sealing plate 22 seals the limiting ring two 23, when the steam is injected into the reboiler 14, the liquid in the reboiler 14 is heated, at this time, the pressure in the reboiler 14 increases, when the pressure in the reboiler 14 is greater than the elastic force of the spring 21, the sealing plate 22 is pushed to the direction of the spring 21, at this time, the liquid and the steam flow into the inside of the rectifying tower 1, so that the situation that the liquid in the reboiler 14 is not completely reacted and is transported into the inside of the rectifying tower 1 is prevented, and the effect of improving the reaction is achieved.

[0036] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article, or equipment.

[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Distillation column for MPE refining, comprising a distillation column (1), characterized in that: The left side of the rectifying tower (1) is fixedly installed with a feed inlet (2), the inside of the rectifying tower (1) is provided with a filter plate one (3), the inside of the filter plate one (3) is provided with a filter hole (4), the inside of the filter plate one (3) is rotatably connected with a connecting shaft (5), the outside of the connecting shaft (5) is fixedly installed with a driving blade (6) and a limiting ring one (7), the limiting ring one (7) is below the driving blade (6) and above the filter plate one (3), the outside of the connecting shaft (5) is fixedly installed with a spiral blade (8), the spiral blade (8) is below the filter hole (4), the top of the filter plate one (3) is fixedly installed with a baffle (9), the inside of the baffle (9) is engaged with a bolt (10), the outside of the bolt (10) is clamped with a sealing ring (11), and the sealing ring (11) is outside the rectifying tower (1).

2. The rectification column for MPE refining according to claim 1, characterized by: The inside of the rectifying tower (1) is provided with a filter plate two (12), the filter plate two (12) is below the filter plate one (3), and the filter plate two (12) is circular and has the same diameter as the filter plate one (3).

3. The MPE refining rectification column according to claim 1, characterized by: The bottom of the rectifying tower (1) is fixedly installed with a connecting pipe one (13), the end of the connecting pipe one (13) away from the rectifying tower (1) is fixedly installed with a reboiler (14), the top of the reboiler (14) is fixedly installed with a steam port (15), a steam condensate outlet (16) and a blowdown port (17) on the outside, the steam port (15) is above the steam condensate outlet (16), the steam condensate outlet (16) is above the blowdown port (17), the top of the reboiler (14) is fixedly installed with a connecting pipe two (18), and the connecting pipe two (18) is fixedly connected with the rectifying tower (1).

4. The MPE refining rectification column according to claim 3, characterized in that: The inside of the connecting pipe two (18) is fixedly installed with a support (19), the left side of the support (19) is fixedly installed with a telescopic rod (20), the outside of the telescopic rod (20) is fixedly installed with a spring (21), the left side of the spring (21) is fixedly installed with a sealing plate (22), the inside of the connecting pipe two (18) is fixedly installed with a limiting ring two (23), the sealing plate (22) is attached to the limiting ring two (23), and the limiting ring two (23) is on the left side of the sealing plate (22).

5. The MPE refining rectification column according to claim 1, characterized by: The top of the rectifying tower (1) is fixedly installed with a connecting pipe three (24), the end of the connecting pipe three (24) away from the rectifying tower (1) is fixedly installed with a condenser (25), the bottom of the condenser (25) is fixedly installed with a connecting pipe four (26), the bottom of the connecting pipe four (26) is fixedly installed with a reflux tank (27), the left side of the reflux tank (27) is fixedly installed with a reflux pipe (28), the reflux pipe (28) is fixedly connected with the rectifying tower (1), and the right side of the condenser (25) is fixedly installed with a cold water inlet (29).

6. The MPE refining rectification column according to claim 1, characterized by: The driving blades (6) are multiple, and the multiple driving blades (6) are above the filter plate (3) and are arc-shaped. The filter holes (4) are multiple, and the multiple filter holes (4) are below the multiple driving blades (6).

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