CN219449591U

CN219449591U - Polymer devolatilization device

Info

Publication number: CN219449591U
Application number: CN202320296672.6U
Authority: CN
Inventors: 徐小武; 潘微
Original assignee: Zhejiang Tuoen Optical New Materials Co ltd
Current assignee: Zhejiang Tuoen Optical New Materials Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-08-01
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a polymer devolatilization device, which comprises a devolatilization tower for polymer devolatilization; the volatile component outlet pipe is used for discharging volatile components and is arranged at the top of the devolatilization tower; the heat exchanger is used for heat exchange and cooling of volatile matters and is arranged on the volatile matters outlet pipe; a vacuum pump for volatile extraction. According to the utility model, the volatile matters in the devolatilization tower are pumped out through the vacuum pump, the volatile matters are cooled and discharged under the condensation action of the heat exchanger, and the vacuum pump generates negative pressure and simultaneously generates pressure on the sealing plate, so that the sealing plate is separated from the volatile matters inlet, and the normal discharge of the volatile matters is ensured.

Description

Polymer devolatilization device

Technical Field

The utility model belongs to the technical field of devolatilization devices, and particularly relates to a polymer devolatilization device.

Background

The devolatilization device is used for removing a small amount of residual volatile substances in the polymerization liquid in the production process of the polymer, and plays a vital role in the quality of the final product;

the application number is as follows: CN201520783078.5 discloses a devolatilizing device, comprising a devolatilizing tower, a feed inlet, a discharge outlet and a volatile matter outlet, wherein one or more packing layers are arranged in the devolatilizing tower, a material distributor is arranged at the top of the devolatilizing tower, and a steam nozzle is arranged at the bottom of the devolatilizing tower. The material taking-off device is internally provided with the filler layer, so that not only can the material form a large enough specific surface, but also the material liquid can have enough taking-off time in the tower, and the taking-off efficiency can be greatly improved;

although the above comparative case solves the corresponding technical problems, the above comparative case has the following drawbacks: the comparative case is easy to cause the backflow of the volatile matters when the volatile matters are cooled and discharged, thereby affecting the stable operation of the device.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a polymer devolatilization device, which aims to solve the technical defects that when a vacuum pump is opened, volatile matters in a devolatilization tower are pumped out through the vacuum pump, the volatile matters are cooled and discharged under the condensation action of a heat exchanger, and pressure is generated on a sealing plate when the vacuum pump generates negative pressure, so that the sealing plate is separated from a volatile matters inlet, and the normal discharge of the volatile matters is ensured, and when the vacuum pump stops operating, the sealing plate can be driven to be close to the volatile matters inlet under the action of the elasticity of a reset spring, the volatile matters inlet is blocked, and further, the cooled volatile matters can be effectively prevented from flowing back, so that the stable operation of the device is ensured.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a polymer devolatilization apparatus comprising a devolatilization tower for polymer devolatilization;

the volatile component outlet pipe is used for discharging volatile components and is arranged at the top of the devolatilization tower;

the heat exchanger is used for heat exchange and cooling of volatile matters and is arranged on the volatile matters outlet pipe;

the vacuum pump is used for extracting volatile matters and is arranged at one end, far away from the volatile matters outlet pipe, of the heat exchanger;

the anti-reflux mechanism comprises an anti-reflux shell arranged on the volatile component outlet pipe, one side of the anti-reflux shell is provided with a volatile component inlet, the other side of the anti-reflux shell is provided with a volatile component outlet, and an anti-reflux component is arranged in the anti-reflux shell and corresponds to the position of the volatile component inlet.

As a further scheme of the utility model, the anti-countercurrent assembly comprises a sealing plate matched with the volatile matter inlet, a reset spring is fixedly connected to the side face of the sealing plate, a connecting rod is fixedly connected to the other end of the reset spring, a connecting sliding sleeve is fixedly connected to the top and the bottom of the connecting rod, and one sides, far away from the connecting rod, of the two connecting sliding sleeves are fixedly connected to the inner wall of the anti-countercurrent shell through mounting rods.

As a further preferable scheme of the utility model, a feeding pipe is arranged at the top of the side surface of the devolatilization tower, and supporting legs for supporting the devolatilization tower are fixedly connected to the two sides of the bottom of the devolatilization tower.

As a further scheme of the utility model, one side of the sealing plate, which is close to the volatile inlet, is fixedly connected with a sealing ring matched with the volatile inlet.

As a further scheme of the utility model, one side of the sealing plate, which is close to the volatile inlet, is in sealing connection with the volatile inlet through the sealing ring.

As a further preferable scheme of the utility model, the side surfaces of the sealing plates are fixedly connected with limiting slide bars corresponding to the two connecting slide sleeves, and the limiting slide bars are in sliding connection with the connecting slide sleeves.

Compared with the prior art, the polymer devolatilization device provided by the utility model has the following beneficial effects: when the vacuum pump is used, the volatile matters in the devolatilization tower are pumped out through the vacuum pump, the volatile matters are cooled and discharged under the condensation action of the heat exchanger, and the vacuum pump generates negative pressure and simultaneously generates pressure to the sealing plate, so that the sealing plate is separated from the volatile matters inlet, the normal discharge of the volatile matters is further ensured, and when the vacuum pump stops operating, the sealing plate can be driven to be close to the volatile matters inlet under the elastic action of the reset spring, the volatile matters inlet is blocked, and further the volatile matters after cooling are effectively prevented from flowing back, so that the stable operation of the device is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only examples of embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a reverse flow prevention mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an anti-reflux assembly according to an embodiment of the present utility model.

Reference numerals:

the device comprises a 1-devolatilization tower, a 2-volatile component outlet pipe, a 3-heat exchanger, a 4-vacuum pump, a 5-backflow prevention mechanism, a 501-backflow prevention shell, a 502-volatile component inlet, a 503-volatile component outlet, a 504-backflow prevention component, a 5041-sealing plate, a 5042-reset spring, a 5043-connecting rod, a 5044-connecting sliding sleeve, a 5045-mounting rod, a 5046-limiting sliding rod and a 5021-sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the implementation routine of the present utility model is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the embodiments of the utility model will be understood by those skilled in the art in the specific case.

Referring to fig. 1 to 3, a polymer devolatilizer comprises a devolatilizer tower 1 for polymer devolatilization;

a volatile component outlet pipe 2 for discharging volatile components, wherein the volatile component outlet pipe 2 is arranged at the top of the devolatilization tower 1;

the heat exchanger 3 is used for heat exchange and cooling of volatile matters, and the heat exchanger 3 is arranged on the volatile matters outlet pipe 2;

a vacuum pump 4 for extracting volatile components, wherein the vacuum pump 4 is arranged at one end of the heat exchanger 3 far away from the volatile component pipe 2;

a prevent against current mechanism 5 for placing volatile cooling backward flow, prevent against current mechanism 5 is including installing the anti-reflux casing 501 on volatile exit tube 2, and volatile import 502 has been seted up to one side of anti-reflux casing 501, and volatile export 503 has been seted up to the opposite side of anti-reflux casing 501, and the inside of anti-reflux casing 501 just corresponds the position of volatile import 502 and is provided with anti-reflux subassembly 504.

The top of the side of the devolatilization tower 1 is provided with a feeding pipe, and the two sides of the bottom of the devolatilization tower 1 are fixedly connected with supporting legs for supporting the devolatilization tower 1.

The anti-countercurrent component 504 comprises a sealing plate 5041 matched with the volatile component inlet 502, a reset spring 5042 is fixedly connected to the side face of the sealing plate 5041, a connecting rod 5043 is fixedly connected to the other end of the reset spring 5042, connecting sliding sleeves 5044 are fixedly connected to the top and the bottom of the connecting rod 5043, and one sides, far away from the connecting rod 5043, of the two connecting sliding sleeves 5044 are fixedly connected to the inner wall of the anti-countercurrent shell 501 through mounting rods 5045.

Referring to fig. 1-3, a sealing ring 5021 matched with the volatile inlet 502 is fixedly connected to one side of the sealing plate 5041 close to the volatile inlet 502, and one side of the sealing plate 5041 close to the volatile inlet 502 is in sealing connection with the volatile inlet 502 through the sealing ring 5021. By adopting the above technical scheme, the sealing performance of the sealing plate 5041 for blocking the volatile inlet 502 is improved.

Referring to fig. 1-3, a limit slide bar 5046 is fixedly connected to the side surface of the sealing plate 5041 and corresponds to the positions of the two connecting slide bars 5044, and the limit slide bar 5046 is slidably connected with the connecting slide bars 5044. By adopting the technical scheme, the sealing plate 5041 is limited, so that the moving stability of the sealing plate 5041 is improved.

The working principle of the polymer devolatilization device of the embodiment of the utility model is as follows: opening vacuum pump 4, will take off the inside volatile matter of volatilizing tower 1 through vacuum pump 4 to under the condensation effect of heat exchanger 3, realize the cooling discharge to the volatile matter, and when vacuum pump 4 produced negative pressure, can produce pressure to closing plate 5041, thereby make closing plate 5041 break away from volatile matter import 502, and then guaranteed the normal discharge of volatile matter, and when vacuum pump 4 stops the operation, under reset spring 5042's elasticity effect, can drive closing plate 5041 and be close to volatile matter import 502, and plug up volatile matter import 502, and then can effectually avoid the volatile matter backward flow after the cooling, thereby guaranteed the steady operation of device.

While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.

Claims

1. A polymer devolatilizer, characterized in that: comprising

A devolatilizer column (1) for devolatilizing the polymer;

a volatile component pipe (2) for discharging volatile components, wherein the volatile component pipe (2) is arranged at the top of the devolatilization tower (1);

the heat exchanger (3) is used for heat exchange and cooling of volatile matters, and the heat exchanger (3) is arranged on the volatile matters outlet pipe (2);

a vacuum pump (4) for extracting volatile matters, wherein the vacuum pump (4) is arranged at one end of the heat exchanger (3) far away from the volatile matters outlet pipe (2);

a prevent mechanism (5) against current for placing volatile cooling backward flow, prevent against current mechanism (5) including install in prevent against current casing (501) on volatile exit tube (2), volatile import (502) have been seted up to one side of preventing against current casing (501), volatile export (503) have been seted up to the opposite side of preventing against current casing (501), prevent against current casing (501) inside and correspond the position of volatile import (502) is provided with prevent against current subassembly (504).

2. The polymer devolatilizer as claimed in claim 1, wherein: anti-reflux assembly (504) include with volatile matter import (502) assorted closing plate (5041), the side fixedly connected with reset spring (5042) of closing plate (5041), the other end fixedly connected with connecting rod (5043) of reset spring (5042), the top and the equal fixedly connected with of bottom of connecting rod (5043) are connected sliding sleeve (5044), and two connect sliding sleeve (5044) keep away from one side of connecting rod (5043) is all through installation pole (5045) fixed connection on the inner wall of anti-reflux casing (501).

3. The polymer devolatilizer as claimed in claim 2, wherein: the top of devolatilization tower (1) side is provided with the material feeding pipe, just the both sides of devolatilization tower (1) bottom are all fixedly connected with and are used for supporting the supporting leg of devolatilization tower (1).

4. A polymer devolatilizer as claimed in claim 3 in which: one side of the sealing plate (5041) close to the volatile component inlet (502) is fixedly connected with a sealing ring (5021) matched with the volatile component inlet (502).

5. The polymer devolatilizer as claimed in claim 4, wherein: one side of the sealing plate (5041) close to the volatile component inlet (502) is in sealing connection with the volatile component inlet (502) through the sealing ring (5021).

6. The polymer devolatilizer as claimed in claim 5, wherein: the side surfaces of the sealing plates (5041) are fixedly connected with limiting slide bars (5046) corresponding to the two connecting slide sleeves (5044), and the limiting slide bars (5046) are in sliding connection with the connecting slide sleeves (5044).