CN111300720A

CN111300720A - Vertical supercritical fluid foaming bottom-opening reaction kettle

Info

Publication number: CN111300720A
Application number: CN201911041690.4A
Authority: CN
Inventors: 张小海; 陈建亚
Original assignee: Jinjiang Xingxun New Material Technology Co ltd
Current assignee: Jinjiang Xingxun New Material Technology Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-19

Abstract

The invention provides a vertical supercritical fluid foaming bottom-opening reaction kettle, relating to the field of high polymer material processing; the structure comprises a kettle body, a kettle cover and a kettle body lifting mechanism for controlling the kettle body to lift; the opening of the kettle body is arranged downwards, and the kettle cover is arranged right below the opening of the kettle body; compared with the traditional vertical device of the lower kettle body/the upper kettle cover, the vertical supercritical fluid foaming bottom-opening reaction kettle has the advantages that the opening of the kettle body is downward, so that after the supercritical fluid is processed and decompressed, when the kettle body is opened upwards, materials can quickly fall out of the interior of the kettle body under the action of gravity, and the free foaming and expansion of the materials are ensured.

Description

Vertical supercritical fluid foaming bottom-opening reaction kettle

Technical Field

The invention relates to the field of high polymer material processing, in particular to a vertical supercritical fluid foaming bottom-opening reaction kettle.

Background

Since the supercritical fluid foaming needs to be performed under relatively high temperature and pressure conditions, the sealing performance of the kettle and the kettle cover for processing the supercritical fluid is extremely important to the safety and the use effect of equipment. Supercritical fluid foaming is usually sealed by a clamp, and the clamp is used for tightly sealing a locking end of a cover body and a locking end of a kettle body through a pair of semicircular split clamps with grooves.

The clamp type sealed supercritical fluid processing equipment mainly has a vertical placing mode and a horizontal placing mode, wherein the vertical equipment has the advantage of small occupied space, but is mainly suitable for laboratory research and application with small scale because the batch materials are placed and taken and the inside of a kettle is not easy to clean, and the horizontal placing mode is usually adopted for industrial production.

Utility model CN205731168U (201620114104.X) discloses a quick-open polymer supercritical reaction kettle, the kettle body of which is vertically arranged, the kettle body is arranged below, and the kettle cover is arranged above; the kettle cover is locked with the kettle body through two semicircular hoops; the lifting arm connected to the screw rod is driven to move up and down by rotating the hand wheel, so that the lifting operation of the kettle cover is realized; the operation of turning the kettle cover into or out of the buckling position is realized by rotating the horizontal frame and the lifting arm around the upright post. The installation of clamp locking kettle cover, clamp locking and kettle cover among the device is whole to adopt the manual work to go on, improves by a wide margin for split type structure operating efficiency, can satisfy the requirement to laboratory bench test, but if the device further increases, operating efficiency can receive great influence.

The invention patent CN109894063A (201910283587.4) discloses a full-automatic opening and closing vertical supercritical fluid foaming device, which realizes full-automatic locking and moving of a hoop and a kettle cover, reduces the labor intensity of operators and improves the operation safety, but the device is still only suitable for manufacturing small devices and cannot be applied to industrial large-scale supercritical fluid processing production.

In utility model patent CN205731168U and invention patent CN109894063A, one end of the clamp is fixed and the other end is suspended when the clamp is not locked, so the weight of the clamp cannot be too large, otherwise the size and strength of the clamp fitting fixed shaft and the clamp and shaft fitting part are enough, otherwise the clamp hanging end may droop to affect the locking accuracy.

The supercritical fluid foaming processing is characterized in that after materials are processed in a kettle body, the interior of the kettle body is rapidly released, the materials can be rapidly expanded, if the materials cannot be rapidly taken out of the kettle body, the shape and the size of the foamed materials are possibly limited by the space of the kettle body, the materials can be irregularly extruded and deformed when being in a high-temperature state in the kettle body, and free supercritical foaming of the materials cannot be realized, so that the defects exist in a kettle body lower mode adopted by the utility model CN205731168U and the invention patent CN 109894063A; in addition, the arrangement mode of the lower kettle body also has great difficulty in cleaning the kettle body.

Disclosure of Invention

The invention aims to provide a vertical supercritical fluid foaming bottom-opening reaction kettle with an upper kettle body/a lower kettle cover, and aims to solve the technical problems that a supercritical fluid foaming device in the prior art cannot quickly take out materials from a kettle body, the kettle body is difficult to clean, and the suspended end of a sealing hoop sags to influence the locking accuracy.

A vertical supercritical fluid foaming bottom-opening reaction kettle comprises a kettle body, a kettle cover and a kettle body lifting mechanism for controlling the kettle body to lift; the opening of the kettle body is arranged downwards, and the kettle cover is arranged under the opening of the kettle body.

Further, still include the sealing mechanism who seals the cauldron body and kettle cover.

Further, sealing mechanism includes first semicircle clamp and the second semicircle clamp of looks lock in cauldron body and kettle cover junction, drives first semicircle clamp and is close to or keeps away from the first clamp push-and-pull institution of second semicircle clamp to and drive second semicircle clamp and be close to or keep away from the second clamp push-and-pull institution of first semicircle clamp.

Further, the opening part of the kettle body is provided with a kettle body locking end, the kettle cover is provided with a cover body locking end, the kettle body locking end is provided with a first extending part, and the cover body locking end is provided with a second extending part.

Further, a first groove is formed in the inner side of the first semicircular hoop, and the height of the first groove is equal to the sum of the heights of the first extending part and the second extending part; the inboard of second semicircle clamp is equipped with the second recess, the height of second recess equals with the height of first recess.

Further, the kettle body lifting mechanism comprises a lifting support platform, a platform support, a lifting support, hydraulic lifting devices and a connecting support, wherein the platform support plays a supporting role in supporting the support platform; the lifting support is vertically and fixedly connected with the hydraulic lifting device, and the lifting support is fixedly connected with the kettle body through a connecting support.

Furthermore, the first hoop pushing and pulling mechanism comprises a first hydraulic pushing and pulling device and a first fixed support which plays a role in fixing the first hydraulic pushing and pulling device; the first hydraulic push-pull device is fixedly connected with the middle part of one side of the first hoop, which is far away from the kettle body; the second hoop pushing and pulling mechanism comprises a second hydraulic pushing and pulling device and a second fixed support which plays a role in fixing the second hydraulic pushing and pulling device; and the second hydraulic push-pull device is fixedly connected with the middle part of one side of the second hoop, which is deviated from the kettle body.

Furthermore, a first clamp moving and fixing lug is arranged at the joint of the first clamp and the first hydraulic push-pull device, and a second clamp moving and fixing lug is arranged at the joint of the second clamp and the second hydraulic push-pull device.

Further, be equipped with first clamp support track between platform support and the first semicircle clamp, be equipped with second clamp support track between platform support and the second semicircle clamp.

Further, the kettle body lifting mechanism also comprises a guide upright post and a kettle body lifting guide rod matched with the guide upright post; one side of the guide upright column facing the kettle body lifting guide rod is provided with a lifting guide matching end, and the kettle body lifting guide rod is fixedly connected with the upper end of the kettle body.

Further, still include the guiding mechanism who plays the guide effect to first semicircle clamp and second semicircle clamp.

Furthermore, the guide mechanism comprises a guide shaft, a guide support A and a guide support B which are respectively arranged at two ends of the guide shaft, and a guide lug which moves back and forth on the guide shaft; the guide support A and the guide support B are fixedly connected with the upper end of the base respectively, and the guide lug is fixedly connected with the first semicircular clamp and the second semicircular clamp.

Furthermore, the side of the lifting support platform close to the kettle body is in a chamfer shape, and the height of the first semicircular hoop and the height of the second semicircular hoop are lower than the height of the lifting support platform.

Further, still including locating the base of kettle cover, first semicircle clamp, second semicircle clamp, first clamp push-and-pull mechanism and second clamp bottom.

Furthermore, the number of the connecting supports is two.

Has the advantages that:

1) compared with the traditional vertical device of the lower kettle body/the upper kettle cover, the invention ensures that the materials can quickly fall out from the interior of the kettle body under the action of gravity when the kettle body is opened upwards after the supercritical fluid is processed and decompressed through the design that the opening of the kettle body is downward, thereby ensuring the free foaming and expansion of the materials;

2) compared with a vertical device of a lower kettle body/an upper kettle cover, the material is not easy to be bonded on the surface of the kettle body, and the interior of the kettle body is convenient to clean;

3) the hoop and the kettle body are fixed in a supporting manner, so that the weight of the device can be greatly improved, the capacity of the device is increased, and the supercritical fluid foaming batch production of a vertical device is realized;

4) the locking of the clamp and the lifting of the kettle body adopt an automatic mode, so that the labor intensity is reduced, and the operation efficiency and the safety are improved;

drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is an assembly diagram of a vertical supercritical fluid foaming bottom-opening reaction vessel in accordance with the present invention;

FIG. 2 is a view from the B-B direction of FIG. 1;

FIG. 3 is a view in the direction C-C and a half-sectional view of FIG. 1;

FIG. 4 is an open state diagram of FIG. 1;

in the figure: 1. the device comprises a kettle body, 2 parts of a hoop, 3 parts of a lifting support platform, 4 parts of a platform support, 5 parts of a hydraulic push-pull device, 6 parts of a base, 7 parts of a kettle cover, 9 parts of a hoop support rail, 10 parts of a guide support A, 11 parts of a guide shaft, 12 parts of a guide lug, 13 parts of a guide support B, 14 parts of a hoop moving fixing lug, 15 parts of a fixing support, 21 parts of a guide upright post, 22 parts of a hydraulic lifting device, 23 parts of a lifting support, 24 parts of a connecting support, 25 parts of a kettle body lifting guide rod and 26 parts of a lifting guide matching end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Examples

Referring to fig. 1 to 4, an embodiment of the invention provides a vertical supercritical fluid foaming bottom-opening reaction kettle, which includes a kettle body, a kettle cover and a kettle body lifting mechanism for controlling the kettle body to lift; the opening of the kettle body is arranged downwards, and the kettle cover is arranged right below the opening of the kettle body; compared with the traditional supercritical foaming device, the supercritical fluid foaming device has the advantages that through the design that the opening of the kettle body faces downwards, after the supercritical fluid is processed and decompressed, when the kettle body is opened upwards, materials can quickly fall out of the kettle body under the action of gravity, and the free foaming and expansion of the materials are guaranteed.

Further, still carry out the sealing mechanism sealed to the cauldron body and kettle cover.

Sealing mechanism includes first semicircle clamp and the second semicircle clamp of looks lock in cauldron body and kettle cover junction, drives first semicircle clamp and is close to or keeps away from the first clamp push-and-pull institution of second semicircle clamp to and drive second semicircle clamp and be close to or keep away from the second clamp push-and-pull institution of first semicircle clamp.

A kettle body locking end is arranged at an opening of the kettle body, a cover body locking end is arranged on the kettle cover, a first extending part is arranged on the kettle body locking end, and a second extending part is arranged on the cover body locking end; a first groove is formed in the inner side of the first semicircular hoop, and the height of the first groove is equal to the sum of the heights of the first extending part and the second extending part; the inboard of second semicircle clamp is equipped with the second recess, the height of second recess equals with the height of first recess, guarantees the compact type and the leakproofness of clamp, the cauldron body 1 and the contact of kettle cover 7.

The kettle body lifting mechanism comprises a lifting support platform 3, a platform support 4 for supporting the support platform 3, a lifting support 23 arranged in the middle of the upper end of the kettle body 1, hydraulic lifting devices 22 arranged at two ends of the lifting support 23, and a connecting support 24 arranged between the lifting support 23 and the kettle body 1; the lifting support 23 is vertically and fixedly connected with the hydraulic lifting device 22, and the lifting support 23 is fixedly connected with the kettle body 1 through a connecting support 24; the invention drives the lifting support 23 to vertically lift through the hydraulic lifting device 22, and the lifting support 23 drives the kettle body 1 through the connecting support 24, thereby realizing the vertical lifting of the kettle body 1.

The kettle body lifting mechanism also comprises a guide upright post 21 and a kettle body lifting guide rod 25 matched with the guide upright post 21; guide column 21 is equipped with lift direction cooperation end 26 towards one side of cauldron body lift guide bar 25, cauldron body lift guide bar 25 and the 1 upper end fixed connection of the cauldron body guarantee the stability of the cauldron body 1 at vertical lift in-process, prevent the slope of the cauldron body 1.

The first hoop push-pull mechanism comprises a first hydraulic push-pull device and a first fixed support which plays a role in fixing the first hydraulic push-pull device; the first hydraulic push-pull device is fixedly connected with the middle part of one side of the first hoop, which is far away from the kettle body 1; the second hoop pushing and pulling mechanism comprises a second hydraulic pushing and pulling device and a second fixed support which plays a role in fixing the second hydraulic pushing and pulling device; and the second hydraulic push-pull device is fixedly connected with the middle part of one side of the second hoop, which is away from the kettle body 1.

The joint of the first clamp and the first hydraulic push-pull device is provided with a first clamp movable fixing lug, the joint of the second clamp and the second hydraulic push-pull device is provided with a second clamp movable fixing lug, and firmness of connection of the clamp and the hydraulic push-pull device is guaranteed through the movable fixing lugs.

A plurality of first hoop support rails are arranged between the platform support 4 and the first hoops, and a plurality of second hoop support rails are arranged between the platform support 4 and the second hoops; first clamp, second clamp, first clamp support rail are in same horizontal plane with first clamp support rail, and clamp support rail plays the purpose that prevents the clamp and control the slope and rock at horizontal migration's in-process.

As shown in fig. 2, the guide mechanism includes a guide shaft 11, a guide support a10 and a guide support B13 respectively disposed at two ends of the guide shaft 11, and a guide lug 12 moving back and forth on the guide shaft 11; the direction is supported A10, direction and is supported B13 and base 6 upper end fixed connection respectively, direction ear 12 and sealing mechanism fixed connection guarantee that the clamp horizontal migration direction is correct, prevent that the clamp from controlling the slope and rocking at horizontal migration's in-process.

Improve promote one side that supporting platform 3 leaned on into cauldron body 1 is the chamfer shape, promotes the design that supporting platform 3's bottom surface is higher than sealing mechanism's height, prevents that the upper end of clamp from touchhing on promoting supporting platform 3 at horizontal migration.

Still including locating the base 6 of kettle cover 7, sealing mechanism and push-and-pull institution bottom, first clamp and the setting of second clamp through sealing mechanism are on base 6, thereby effectively solved the flagging problem that influences the closure accuracy of traditional foaming device clamp hanging end.

The number of the connecting supports 24 is two, so that the stability of the connecting supports 24 and the kettle body 1 is ensured.

The working principle of the invention comprises two processes of automatic control closing and automatic control opening:

1. starting an automatic control closing process:

the 1 hydraulic lifting device 22 drives the kettle body 1 to descend through the lifting support 23, the connecting support 24 and the kettle body lifting guide rod 25, when descending, the pair of guide upright posts 21 are matched with the lifting guide matching end 26 of the kettle body lifting guide rod 25, the end part of the kettle body 1 is aligned with the locking end of the kettle cover 7, and the hydraulic lifting device 22 stops descending;

2, starting the hydraulic push-pull device 5, pushing the hoop 2 inwards to move, matching the hoop 2 with the guide shaft 11 through the guide lug 12, and stopping the action of the hydraulic push-pull device 5 after the aligned end parts of the kettle body 1 and the locking end of the kettle cover 7 are clamped by the pair of hoops 2;

3 the equipment can start the supercritical fluid processing flow of the material.

2. Starting an automatic control starting process:

the method comprises the following steps that 1, a pair of hydraulic push-pull devices 5 are started to push a hoop 2 outwards to move, the hoop 2 moves in a matched mode through a guide lug 12 and a guide shaft 11, and when the pair of hoops 2 completely release and loosen the end portion of an aligned kettle body 1 and a locking end of a kettle cover 7, the hydraulic push-pull devices 5 stop acting;

2 the hydraulic lifting device 22 drives the kettle body 1 to ascend through the lifting support 23, the connecting support 24 and the kettle body lifting guide rod 25, when ascending, the pair of guide upright posts 21 are matched with the lifting guide matching end 26 of the kettle body lifting guide rod 25, the end part of the kettle body 1 is completely separated from the locking end of the kettle cover 7, and when the kettle body 1 ascends to a certain height, the hydraulic lifting device 22 stops ascending;

and 3, directly taking and placing the materials.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical supercritical fluid foaming bottom-opening reaction kettle comprises a kettle body and a kettle cover, and is characterized by also comprising a kettle body lifting mechanism for controlling the kettle body to lift; the opening of the kettle body is arranged downwards, and the kettle cover is arranged under the opening of the kettle body.

2. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 1, further comprising a sealing mechanism for sealing the kettle body and the kettle cover.

3. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 2, wherein the sealing mechanism comprises a first semicircular clamp and a second semicircular clamp fastened at the connection of the kettle body and the kettle cover, a first clamp push-pull mechanism driving the first semicircular clamp to approach or be away from the second semicircular clamp, and a second clamp push-pull mechanism driving the second semicircular clamp to approach or be away from the first semicircular clamp.

4. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 3, wherein the opening of the kettle body is provided with a kettle body locking end, the kettle cover is provided with a cover body locking end, the kettle body locking end is provided with a first extension part, and the cover body locking end is provided with a second extension part.

5. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 4, wherein the inner side of the first semicircular hoop is provided with a first groove, and the height of the first groove is equal to the sum of the heights of the first extension part and the second extension part; the inboard of second semicircle clamp is equipped with the second recess, the height of second recess equals with the height of first recess.

6. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 5, wherein the kettle body lifting mechanism comprises a lifting support platform, a platform support for supporting the support platform, a lifting support arranged in the middle of the upper end of the kettle body, hydraulic lifting devices arranged at two ends of the lifting support, and a connecting support arranged between the lifting support and the kettle body; the lifting support is vertically and fixedly connected with the hydraulic lifting device, and the lifting support is fixedly connected with the kettle body through a connecting support.

7. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 6, wherein the first hoop pushing and pulling mechanism comprises a first hydraulic pushing and pulling device and a first fixed support for fixing the first hydraulic pushing and pulling device; the first hydraulic push-pull device is fixedly connected with the middle part of one side of the first hoop, which is far away from the kettle body; the second hoop pushing and pulling mechanism comprises a second hydraulic pushing and pulling device and a second fixed support which plays a role in fixing the second hydraulic pushing and pulling device; and the second hydraulic push-pull device is fixedly connected with the middle part of one side of the second hoop, which is deviated from the kettle body.

8. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 7, wherein a first hoop moving and fixing lug is arranged at the joint of the first hoop and the first hydraulic push-pull device, and a second hoop moving and fixing lug is arranged at the joint of the second hoop and the second hydraulic push-pull device.

9. The vertical supercritical fluid foaming bottom opening reactor according to claim 8, wherein a first hoop support rail is provided between the platform support and the first semicircular hoop, and a second hoop support rail is provided between the platform support and the second semicircular hoop.

10. The vertical supercritical fluid foaming bottom opening reaction kettle according to claim 9, wherein the kettle body lifting mechanism further comprises a guide upright post, and a kettle body lifting guide rod matched with the guide upright post; one side of the guide upright column facing the kettle body lifting guide rod is provided with a lifting guide matching end, and the kettle body lifting guide rod is fixedly connected with the upper end of the kettle body.