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Bisphenol A production granulating system

A granulation and granulation tower technology, applied in the field of bisphenol A production granulation system, can solve the problem of not ensuring the uniform distribution of the rising nitrogen flow, and achieve the effects of reasonable structure, uniform particle size, and guaranteed heat exchange effect.

Active Publication Date: 2009-10-07
NANTONG XINGCHEN SYNTHETIC MATERIAL
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AI Technical Summary

Problems solved by technology

However, when the amount of nitrogen flow is relatively large, reaching 80,000 to 100,000 cubic meters per hour, the uniform distribution of rising nitrogen flow cannot be guaranteed

Method used

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  • Bisphenol A production granulating system
  • Bisphenol A production granulating system

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Embodiment Construction

[0015] A production and granulation system for bisphenol A, comprising a granulation tower, the granulation tower has a granulation tower body 1, a casing 2 is arranged at the lower part of the prilling tower body, the upper and lower ends of the casing are sealed and joined with the prilling tower body, There is a nitrogen chamber between the tower bodies, cooling nitrogen inlets 3 and 4 are arranged on the jacket, and a plurality of nitrogen gas inlet holes 5 are arranged at the same height of the prilling tower body inside the jacket.

[0016] There are 16 nitrogen air intake holes, and the air intake holes are rectangular.

[0017] The cross-section of the prilling tower body is circular, and the ①, ⑧, ⑨, ⑨ Air intake holes, the ② to ⑦ air intake holes are evenly arranged between the ① air intake hole and the ⑧ air intake hole, and the ⑨ air intake hole and the ⑧ air intake hole The ⑩~th air intake. The size of the air inlet is 1240×500mm, and the long side is arrang...

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Abstract

The invention discloses a bisphenol A production granulating system, comprising a granulating tower. The granulating tower is provided with a granulating tower body; the lower part of the granulating tower body is provided with an outer sleeve; the upper end and the lower end of the outer sleeve are jointed with the granulating tower body in a sealing way; a nitrogen cavity is arranged between the outer sleeve and the granulating tower; an inlet for cooling nitrogen is arranged on the outer sleeve; and a plurality of nitrogen inlet holes are arranged at the same height with the granulating tower in the outer sleeve. The bisphenol A production granulating system has reasonable structure, can guarantee uniform distribution of rising nitrogen flow, finally achieve uniform size of granulated particles and meet the requirements of the expected value of the technique.

Description

Technical field: [0001] The invention relates to a bisphenol A production and granulation system. Background technique: [0002] In the production process of 90,000 tons / year bisphenol A, the granulation unit needs to use a granulation tower to cool and granulate the qualified liquid bisphenol A. Pelletization is a gas-liquid two-phase heat exchange process. Qualified liquid bisphenol A flows down from the top nozzle, while nitrogen used for cooling flows countercurrently from the bottom of the prilling tower. During the process of falling liquid bisphenol A and rising nitrogen The flow performs heat exchange, thereby cooling the liquid bisphenol A, so that the bisphenol A changes from a liquid phase to a solid phase. [0003] At present, due to the small production capacity (25,000 tons / year) of bisphenol A equipment in China, the amount of rising nitrogen flow used for cooling is relatively small, ranging from 17,000 to 30,000 cubic meters per hour, so its requirements fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/04C07C39/16
Inventor 万荣波蔡红卫范洪明何雪飞盛小裕江岭盛国峰张金泉
Owner NANTONG XINGCHEN SYNTHETIC MATERIAL
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