Supergravity reactor for intensifying modification of polysaccharide high polymer

A high-gravity reactor and polymer modification technology, applied in chemical/physical/physical chemical fixed reactors, chemical/physical/physical chemical mobile reactors, chemical instruments and methods, etc., can solve raw material loss Large size, many reaction equipment, large power consumption, etc., to achieve the effect of reducing the loss of raw materials, shortening the reaction time, and preventing the material from sticking to the wall

Inactive Publication Date: 2015-04-08
GUANGXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used modification equipment generally adopts the traditional tank-type stirred reactor, the reaction is intermittent, the reaction time is long, the reaction is discontinuous, the quality of different batches of products is unstable, and because the heating area of ​​a single tank-type reactor is very limited, There

Method used

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  • Supergravity reactor for intensifying modification of polysaccharide high polymer
  • Supergravity reactor for intensifying modification of polysaccharide high polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high-gravity reactor that strengthens the modification of polysaccharide polymers. The outer cylinder 5 is a horizontal structure, and the outer cylinder 5 is equipped with a reaction inner cylinder 8. The reducer I1 is connected to the stirring shaft 2 through a coupling, and the stirring The shaft 2 is inserted into the reaction inner cylinder 8 through the through hole on the end cover 3 of the outer cylinder 5, and the stirring shaft 2 is fixed on the two ends of the outer cylinder 5 through the bearing seats at both ends; the outside of the reaction inner cylinder 8 is provided with A jacket 6 with a heating device, the heating device includes a heating medium and a heater, wherein the heating medium is heat transfer oil, and the heater is an electric heater. A temperature controller 11 is also provided in the jacket 6 . A total inlet and outlet 7 is arranged on the top of the outer cylinder 5, and the total inlet and outlet 7 communicate with the reaction inner ...

Embodiment 2

[0035] The difference from Example 1 is that, during installation, the outermost end of the outer helical belt 10 is spaced 2 mm from the inner wall of the reaction inner cylinder 8 . The outer cylinder 5 is connected with the driving device, and the driving device includes a reducer II12 and a gear set 13 installed on the outer cylinder 5; the reducer II12 controls the rotation of the outer cylinder 5 by being connected with the gear set 13. The outer ring of the outer cylindrical body 5 is provided with supporting rollers 14 . The heating medium in the jacket 6 is steam. The outer ring of the outer cylinder 5 is equipped with supporting rollers 15, which reduces the loss of the outer cylinder 5 in the turnover movement, improves the service life, and can adjust the inclination of the outer cylinder 5 through the supporting rollers 14 for different materials and modification methods The speed and rotation speed are used to control the residence time of the material in the re...

Embodiment 3

[0038] The difference from Example 2 is that when two or more high-gravity reactors modified by the reinforced polysaccharide polymer described in Example 2 are connected in series, at both ends of the outer cylinder 5 A fixed cover is provided, one end of the fixed cover is provided with a material inlet, and the other fixed cover is provided with a material outlet. The material outlet is connected in series with the material outlet of another high-gravity reactor modified by the reinforced polysaccharide polymer through a pipeline to realize continuous production.

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Abstract

The invention discloses a supergravity reactor for intensifying the modification of a polysaccharide high polymer. An outer cylinder body is in a horizontal type structure, the outer cylinder body is internally provided with a reaction inner cylinder, a speed reducer I is connected with a stirring shaft through a coupler, the stirring shaft penetrates through a through hole positioned on an end cover of the outer cylinder body to be inserted into the reaction inner cylinder, and the stirring shaft is fixed on two ends of the outer cylinder body through bearing seats positioned on two ends of the stirring shaft; the outer side of the reaction inner cylinder is provided with a jacket, a main inlet and outlet is arranged on the outer cylinder body, the main inlet and outlet is communicated with the reaction inner cylinder, the stirring shaft is provided with an inner spiral band and an outer spiral band, and the inner spiral band and the outer spiral band are reversely arranged along an axial direction; and the radius of the inner spiral band is smaller than the radius of the outer spiral band. According to the supergravity reactor, the inner spiral band and the outer spiral band move at high speed back and forth to generate strong centrifugal force and shearing force so as to enhance mass transfer and micromixing effect, so that the reaction is intensified, and the reaction time is effectively shortened; in addition, the outer spiral band is capable of scraping to remove a wall-adhering material in time, so that the product quality is enhanced.

Description

technical field [0001] The invention relates to a high-gravity reactor, in particular to a high-gravity reactor modified by polysaccharide polymers. Background technique [0002] Polysaccharide polymers include starch, lignocellulose, chitosan, etc. Polysaccharide polymers are generally crystalline polymers, consisting of crystalline regions and amorphous regions. Hydrogen bonds are formed to form a highly crystalline structure. Most of the reagents can only reach the amorphous region, but not the crystalline region. Therefore, in order to improve the modification and deep processing efficiency of polysaccharide crystalline polymers, they must be activated. [0003] The development and research of high-gravity technology began in the late 1970s. Professor Ramshaw of the British ICI company first researched and applied for a patent EP0002568, which disclosed a packed high-gravity rotating bed (rotating packed bed). As a new engineering technology of process intensification, ...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01F7/08B01F15/06
CPCB01J19/0013B01J19/0066B01J19/20B01J19/28B01J2219/00051B01J2219/182
Inventor 黄祖强岑忠儒胡华宇张燕娟刘军冯振飞黄爱民杨梅覃宇奔覃杏珍朱园勤沈芳
Owner GUANGXI UNIV
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