CN211936892U - Horizontal reation kettle of high viscosity polymer - Google Patents

Abstract

The utility model discloses a horizontal reation kettle of high viscosity polymer, including the cauldron body that is equipped with the clamp cover, set up a plurality of heat medium mouths on the cauldron body clamp cover, the access hole of setting at cauldron body upside rear end, the front end cover access hole of front end and the rear end cover access hole of rear end, cauldron body upside front end is equipped with the gas phase mouth, both ends are equipped with discharge gate and feed inlet respectively around the cauldron body downside, the internal rabbling mechanism that is equipped with of cauldron, rabbling mechanism is including passing cauldron body front end and axial installation at the internal rotation axis of cauldron, the back shaft, install on the rotation axis high viscosity disc piece subassembly and install the low viscosity disc piece subassembly between rotation axis and back shaft, the rigid coupling has the scraper on the cauldron body inner wall around the high viscosity disc piece subassembly, scraper and the mutual dislocation set of high viscosity disc piece subassembly. The utility model provides a horizontal reation kettle of traditional polymer can't handle the problem of high viscosity polymerization fuse-element.

Description

Horizontal reation kettle of high viscosity polymer

Technical Field

The utility model belongs to the chemical industry equipment field, concretely relates to horizontal reation kettle of high viscosity polymer.

Background

The traditional polymerization reaction kettle mostly adopts a horizontal polymerization reaction kettle as a final polymerization reaction kettle, and is commonly used for the polymerization reaction of polymers such as PET, PBT, PTT and the like. The polymerization reaction kettle structurally comprises a shell with two sealed ends, wherein a stirring shaft is arranged in the shell, a disc is arranged on the stirring shaft, the stirring shaft is connected with a transmission device, a melt is pulled up in the reaction kettle to form a film shape along with the rotation of the stirring shaft, and the polymerization reaction is carried out in a vacuum state.

However, the traditional horizontal reaction kettle device adopted in the polymerization reaction of polymers such as PET, PBT, PTT and the like can generally process polymer melt with intrinsic viscosity of 0.1-0.7dl/g, and then the polymer melt with high intrinsic viscosity can generate the problem of unsmooth blanking in the reaction, and along with the growth of the market of high-viscosity products, a horizontal reaction kettle capable of processing the viscosity of 0.7-1.0dl/g is urgently needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a horizontal reation kettle of high viscosity polymer solves the problem that the horizontal reation kettle of traditional polymer can't handle the high viscosity polymerization fuse-element.

The utility model discloses a realize through following technical scheme: the utility model provides a horizontal reation kettle of high viscosity polymer, is including the cauldron body that is equipped with the clamp cover, set up a plurality of heat medium mouths on the cauldron body presss from both sides the cover, set up the access hole at cauldron body upside rear end, the front end cap access hole of front end and the rear end cap access hole of rear end, cauldron body upside front end is equipped with the gas phase mouth, both ends are equipped with discharge gate and feed inlet respectively around the cauldron body downside, the internal rabbling mechanism that is equipped with of cauldron, rabbling mechanism is including passing cauldron body front end and install with the axial the internal rotation axis of cauldron, back shaft, install the high viscosity disc piece subassembly of rotation axis and install the low viscosity disc piece subassembly between rotation axis and back shaft, around the high viscosity disc piece subassembly the rigid coupling has the scraper on the cauldron internal wall, the scraper with the mutual dislocation set of high viscosity disc piece subassembly.

Preferably, the internal component clearance in the high viscosity disc component is 12cm, 14cm, 15cm, 17cm, 19cm or 22 cm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses increased the scraper around high viscous disc piece subassembly and come the rupture of membranes, adjusted the clearance of inside subassembly simultaneously at high viscosity reaction zone, made polymer melt mobility good, can effectively fall, and then made the unloading of high viscosity polymer smooth and easy, solved the polymer melt reaction unsmooth problem of unloading of 0.7-1.0dl/g viscosity, enlarged this horizontal reation kettle application range of polymer greatly.

Drawings

FIG. 1 is an assembly view of the present invention;

FIG. 2 is a front view of the kettle body of the present invention;

FIG. 3 is a front view of the stirring mechanism of the present invention;

fig. 4 is a side view of the high viscosity disc assembly of the present invention;

fig. 5 is a side view of a low-stick disc assembly of the present invention.

In the drawings: 1. a gas phase port; 2. a kettle body; 3. an access hole; 4. a feed inlet; 5. a discharge port; 6. a scraper; 7. a heat medium port; 8. a rear end cover access opening; 9. a front end cover access opening; 10. a high-viscosity disc assembly; 11. a low-stick assembly; 12. a stirring mechanism; 13. a rotating shaft; 14. and supporting the shaft.

Detailed Description

As shown in the attached drawings of the specification and figures 1 to 5, a high viscosity polymer horizontal reaction kettle comprises a kettle body 2 provided with a jacket, a plurality of heat medium ports 7 arranged on the jacket of the kettle body (the heat medium ports 7 comprise an inlet arranged below the kettle body 2 and an outlet arranged above the kettle body 2, and heat conduction oil is guided into the jacket through an external circulation system), an access port 3 arranged at the upper side and the rear end of the kettle body 2, a front end cover access port 9 at the front end and a rear end cover access port 8 at the rear end, a gas phase port 1 is arranged at the front end of the upper side of the kettle body 2, a discharge port 5 and a feed port 4 are respectively arranged at the front end and the rear end of the lower side of the kettle body 2, a stirring mechanism 12 is arranged in the kettle body 2, the stirring mechanism 12 comprises a rotating shaft 13 which penetrates through the front end of the kettle body 2 and is coaxially arranged in the kettle body 2, a supporting shaft 14, a high viscosity disc assembly 10 arranged on the rotating shaft 13 and a low, the inner wall of the kettle body 2 around the high-viscosity disc sheet assembly 10 is fixedly connected with a scraper 6, and the scraper 6 and the high-viscosity disc sheet assembly 10 are arranged in a staggered mode.

The internal assembly clearance in the high viscosity disc assembly 10 is 12cm, 14cm, 15cm, 17cm, 19cm or 22 cm.

The low-viscosity polymer melt enters the kettle body 2 from the feeding hole 4, the melt is taken up on the stirring mechanism 12 under the drive of the rotating shaft 13, a film shape is formed in the ascending and descending process, the polymerization reaction is carried out under the high vacuum environment (the vacuum pumping operation can be carried out through a vacuum system arranged outside) of the vacuumizing of the gas phase port 1, the low-molecular substance and the alcohol reaction product are pumped out from the gas phase port 1, the molecular chain of the polymer is increased, the polymerization degree is increased, the intrinsic viscosity of the melt is increased, the material melt is increased gradually along the axial motion viscosity along with the continuous rising of the material level of the feeding hole 4 due to certain viscosity of the melt, the material is moved towards the discharging hole 5 continuously due to the self-weight effect, and the high-viscosity melt of 0.7-1.0dl/g is discharged along with the effect that the discharging hole 5 is connected with;

because some scrapers 6 fixedly connected with the inner wall of the kettle body 2 around the high-viscosity disc piece assembly 10 can effectively break membranes, the scrapers 6 and the high-viscosity disc piece assembly 10 are arranged in a staggered mode, membrane breaking efficiency is higher, meanwhile, the gap between the inner assemblies in the high-viscosity disc piece assembly 10 is adjusted in a high-viscosity reaction area, polymer melt is good in flowability and can effectively fall down, high-viscosity polymer is smooth in blanking, reaction time is shorter, melt quality is better, the problem that blanking is not smooth when the polymer melt with the viscosity of 0.7-1.0dl/g is reacted is solved, and the application range of the polymer horizontal reaction kettle is greatly expanded.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.

Claims (2)

1. The utility model provides a horizontal reation kettle of high viscosity polymer, includes the cauldron body (2) that is equipped with the clamp cover, sets up a plurality of heat medium mouth (7) on the cauldron body presss from both sides the cover, sets up in access hole (3) of cauldron body (2) upside rear end, front end cover access hole (9) of front end and rear end cover access hole (8), its characterized in that: cauldron body (2) upside front end is equipped with gaseous phase mouth (1), both ends are equipped with discharge gate (5) and feed inlet (4) respectively around the cauldron body (2) downside, be equipped with rabbling mechanism (12) in the cauldron body (2), rabbling mechanism (12) are including passing cauldron body (2) front end and install with the axial rotation axis (13), back shaft (14) in the cauldron body (2), install hyperviscosity disc piece subassembly (10) on rotation axis (13) and install low discotic disc piece subassembly (11) between rotation axis (13) and back shaft (14), hyperviscosity disc piece subassembly (10) around on cauldron body (2) inner wall the rigid coupling has scraper (6), scraper (6) with hyperviscosity disc piece subassembly (10) dislocation set each other.

2. The horizontal reactor of claim 1, wherein: the gap between the internal components in the high-viscosity disc component (10) is 10-25 cm.

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