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Riser for preparing chlorinated polyvinyl chloride through circulating fluidized bed

A technology of chlorinated polyvinyl chloride and circulating fluidized bed, which is applied in the field of riser to solve the problem of chlorination uniformity, improve safety and ensure reliability

Active Publication Date: 2016-03-02
XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a riser for the preparation of chlorinated polyvinyl chloride by a circulating fluidized bed to solve the problems of uniformity of ultraviolet initiation and uniformity of material activation in the chlorination reaction process

Method used

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  • Riser for preparing chlorinated polyvinyl chloride through circulating fluidized bed
  • Riser for preparing chlorinated polyvinyl chloride through circulating fluidized bed
  • Riser for preparing chlorinated polyvinyl chloride through circulating fluidized bed

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1, as specification attached Figure 1-5 , the riser device includes a connecting device 3, a rising pipe 4, a fixing device 5, and a purging device 2; Unicom; at least two corresponding fixing devices 5 are provided on any diagonal surface of the side wall of the riser 4; the fixing devices 5 are distributed in a dislocation array on the surface of the riser 4, and the center distance of the fixing devices 5 is an ultraviolet lamp 10 twice the diameter, the fixing device 5 includes a connecting pipe 6, a locking nut 7, a sealing ring 8, an outer pipe 9, and a fixed ring 11; the connecting pipe 6 is connected with the riser 4, and the outer pipe 9 is used The material is a silicon dioxide material, preferably quartz, which is horizontally inserted into the riser 4, and connected with the corresponding connecting pipe 6 on the diagonal surface, and its two ends are connected to the connecting pipe 6 through lock nuts 7 and sealing rings 8. Sealing, the ultrav...

Embodiment 2

[0029]Embodiment 2: with reference to attached Figure 1-5 , The difference between this embodiment and Embodiment 1 is that the distance between the centers of the fixing devices 5 is three times the diameter of the ultraviolet lamp 10 .

Embodiment 3

[0030] Embodiment 3: with reference to attached Figure 1-5 , The difference between this embodiment and Embodiments 1 and 2 is that the distance between the centers of the fixing devices 5 is 4 times the diameter of the ultraviolet lamp 10 .

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Abstract

The invention relates to a riser for preparing chlorinated polyvinyl chloride through a circulating fluidized bed. The riser is formed by connecting devices, a riser body, fixing devices and purging devices in a connected mode. The riser is characterized in that the riser body is square, and the two ends of the riser body are communicated with the connecting devices with circular-to-square structures; at least two corresponding fixing devices are arranged on any diagonal plane of the side walls of the square riser body, the fixing devices are distributed on the surfaces of the square riser body in a staggered and arrayed mode, and the distance between the centers of the fixing devices is 1.5-4 times the diameter of a lamp tube. According to the riser, the purposes of ultraviolet-induced uniformity and material activation uniformity are effectively achieved, the problems of material sintering, carbonization and the like caused by material gathering or clustering in the industrialized enlargement process are avoided, and industrialized enlargement of chlorinated polyvinyl chloride prepared through the circulating fluidized bed is made possible.

Description

technical field [0001] The invention belongs to the field of chemical equipment, in particular to a riser for preparing chlorinated polyvinyl chloride in a circulating fluidized bed. Background technique [0002] Chlorinated polyvinyl chloride resin Chlorinated polyvinyl chloride is a product obtained after chlorination of polyvinyl chloride resin polyvinyl chloride, and its chlorine content is between 65% and 69%. Because of its excellent heat resistance, corrosion resistance and good comprehensive mechanical properties, it has attracted widespread attention at home and abroad, and the research and development of its synthesis technology has also been highly valued by people. In 1936, Germany A. G. Farben Company was the first to use the solution method to conduct research on chlorinated polyvinyl chloride, and it was put into production in 1942. In the 1940s, the British ICI company first studied the chlorinated polyvinyl chloride aqueous phase suspension process; in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/24C08F14/06C08F8/22
Inventor 刘军周军熊新阳靖志国蒋琨李自兵周欢陈财来池建忠臧缪洋刘东阳苏钵郭靖
Owner XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD
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