Tubular polymer reactor

Abstract

The invention relates to a tubular polymer reactor, comprising polymer reaction tubes. Each polymer reaction tube consists of a stainless steel tube, is externally sleeved with a jacket and internally provided with a helical tape and is provided with flanges at two ends, wherein the helical tape is arranged in the stainless steel tube, and is connected with a connecting ring at each end, a fixed ring is connected at the external end of the connecting ring, a gibbose head is arranged on each fixed ring, the installation position of each fixed ring is level with the corresponding gibbose head and the surface of the corresponding flange, and the two ends of the jacket are provided with jacket flange interfaces. A plurality of the polymer reaction tubes are connected in series to form a polymer reaction unit; and more than one polymer reaction unit is laminated and overlaid to form the polymer reactor, and each polymer reaction unit of the polymer reactor is provided with the polymer reaction tubes different in diameter. By means of the tubular polymer reactor, inert gas can be conveniently used as delivery power to control the sufficient polymerization time of polymers different in molecular weight; the heating temperature inside the jacket is convenient to regulate; the molecular weight of materials in the reactor can be tested on line at any time; and the integral tubular polymer reactor is convenient and fast to operate, is convenient to implement automation and easy to clean, and can be detached and restructured randomly.

Description

technical field [0001] The invention relates to a polymerization device for methyl vinyl high-temperature vulcanized silicone rubber, in particular to a tubular polymerization reactor. Background technique [0002] At present, there are two kinds of polymerization devices for methyl vinyl high temperature vulcanized silicone rubber commonly used in China. Namely static mixers and polymerization reactors with bidirectional ribbons. The static mixer has the characteristics of low energy consumption, simple structure, compact device, small footprint and small space; but its disadvantages are also inevitable, that is, small operating flexibility, difficult process operation, mass exchange and heat exchange Insufficient; unable to produce ultra-high molecular weight methyl vinyl high-temperature vulcanized silicone rubber; and it is not very suitable for the real needs of the current market for frequent switching of molecular weight. Although the polymerization reactor with two...

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Problems solved by technology

The static mixer has the characteristics of low energy consumption, simple structure, compact device, small footprint and small space; but its disadvantages are also inevitable, that is, small operating flexibility, difficult process operation, mass exchange and heat exchange Insufficient; unable to produce ultra-high molecular weight methyl vinyl high-temperature vulcanized silicone rubber; and it is not suitable for the real demand of the current market for frequent switching of molecular weight

Although the polymerization reactor with two-way spiral belt can be more convenient to switch requirements, and the mass exchange has also been improved; it also significantly reduces the difficulty of operation, and the controllability has also been improved; but there are also some disadvantages As we all know, when the reaction starts from a low molecular weight of only a few hundred, and after polymerization, the molecular weight soars to hundreds of thousands, or even as high as one million or more, sometimes it will cause the polymer to fail due to too much mechanical load during polymerization. often down

Even if it is started, the speed is very slow. Due to the problem of equipment load, the current solution is to start and stop, which is obviously not conducive to the mass exchange and heat exchange of polymers.

Moreover, due to the structural reasons of the reactor itself, it is limited by the exchange area. First, the heat exchange area is too small, and there is a certain temperature gradient inside the material.

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