Novel high-viscosity final polycondensation reactor

A high-viscosity, final polycondensation technology, applied in chemical/physical/physical-chemical processes, chemical/physical/physical-chemical stationary reactors, chemical instruments and methods, etc., can solve the problem of large cost investment, heat loss, unfavorable energy saving and environmental protection and other problems to achieve the effect of reducing production costs and improving production efficiency

Inactive Publication Date: 2017-05-10
NANJING HAOYANG CHEM EQUIP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The equipment cost of this solution is large, and the heat loss will be lost during the material transfer proces

Method used

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  • Novel high-viscosity final polycondensation reactor

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Example Embodiment

[0013] Example

[0014] The structure of the new high-viscosity final polycondensation reactor of this embodiment is shown in Figure 1. It adopts a horizontal structure and mainly includes a transmission end 1, a left end cover 2, a feed port 3, a front cylinder body 4, a ring seat 5, and a cage stirrer 6. Bearing seat 7, cylinder middle flange 8, disc agitator 9, scraper 10, discharge port 11, rear cylinder 12, right end cover 13, bubbling liquid level gauge 14 at both ends, mechanical seal and bracket 15.

[0015] Embodiment Two stirring devices with different rotation speeds are arranged in the cylinder. One of the stirring devices uses a cage stirrer 6 to be placed in the front cylinder 4, and the other uses a disc stirrer 9 with an inclined scraper 10 to be placed Inside the barrel 12 of the rear section; in the middle of the barrel, two half-tile bearings are provided to support two stirring devices; a reinforcement ring is provided on the barrel.

[0016] The rotating speeds ...

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Abstract

The invention belongs to the technical field of chemical equipment and relates to a novel high-viscosity final polycondensation reactor. The reactor sequentially comprises a transmission end, a left end cover, a feeding port, a front drum section, a ring seat, a bearing seat, a drum middle flange, a discharging port, a rear drum section, a right end cover, mechanical seal and a supporting frame. The reactor is characterized in that two stirring devices different in rotation speed are arranged in a drum, one of the stirring devices is a cage stirrer arranged in the front drum section, and the other stirring device is a disc stirrer with an inclination scraper and is arranged in the rear drum section. Two half pad bearings are arranged in the middle of the drum to support the two stirring devices, and reinforcement rings are arranged on the drum. The novel high-viscosity final polycondensation reactor has the advantage that by integration of an original final polycondensation reactor and a tackifying reactor, production cost reduction, production efficiency improvement, energy saving, environment friendliness and high market competitiveness are realized.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a novel high-viscosity final polycondensation kettle. It can produce PET to meet the production of various polymer materials such as PBT and PTT. Background technique [0002] The final polycondensation reactor is the key equipment in the production of polyester. There is only a single stirring device in the traditional final polycondensation reactor. The reaction, and the film is pulled through the agitator mesh to increase the viscosity of the material. After the polymer stays in the reactor for a certain period of time, the polymer melt that meets the product index requirements is pumped out from the outlet by the melt discharge pump. [0003] The viscosity of the traditional final polycondensation reactor is relatively high near the discharge port. When it is necessary to obtain a higher viscosity product, it is necessary to change the stirring struct...

Claims

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Application Information

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IPC IPC(8): B01J19/18C08G63/78
CPCB01J19/18B01J19/0066B01J2219/182C08G63/785
Inventor 高驰汪少朋何胜君
Owner NANJING HAOYANG CHEM EQUIP
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