A Continuous Polymerization Reactor for the Production of Mesophase Carbon Microspheres

Abstract

The invention relates to a continuous polymerization reactor used for producing mesocarbon microbeads. The reactor comprises a shell and a quick temperature rising device and a dual-stirring drive device arranged at the top of the shell, wherein a nitrogen hole, a discharge hole and a jacket are respectively formed in and arranged on the shell; a frame type stirrer and a shunting main stirrer are arranged in the shell; a material inlet and a material outlet are formed at the bottom of the quick temperature rising device; a scraper group and a horizontal baffle are fixed on the frame type stirrer; the paddle group of the shunting main stirrer and the horizontal baffle are arranged in a crossed way. According to the reactor disclosed by the invention, material moves to the upper part of the shell due to inverse rotation, and the reaction polymerization effect is relatively uniform along with the extension of reaction time, so that uniform and quick growth of mesocarbon microbeads can be promoted, and the purpose of efficient, energy-saving, low-cost and continuous production of mesocarbon microbeads can be achieved.

Description

technical field [0001] The invention belongs to the technical field of coal chemical production equipment, and particularly designs a continuous polymerization reactor for producing mesophase carbon microspheres. Background technique [0002] At present, at home and abroad, medium-temperature coal tar pitch is used as raw material to prepare mesophase carbon microspheres. The batch production process is adopted; the key equipment in the production process - the polymerization reactor is indirectly heated by external high-temperature waste gas, and the polymerization reaction It takes 6 hours for the materials in the reactor to heat up to the reaction temperature of 450°C. In addition, the reaction time for the materials in the polymerization reactor is 5 hours, and the material cools down for 4 hours. The production cycle of each reactor is about 17 to 19 hours. [0003] With this heating method, the heating uniformity of the materials in the kettle is poor, and the inner wa...

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Problems solved by technology

[0003] With this heating method, the heating uniformity of the materials in the kettle is poor, and the inner wall of the kettle is prone to coking and hanging on the wall during the production process.

At the same time, the stirring device is an ordinary single stirrer, and the materials move in the same direction, so there is no shearing of the materials, and the reaction interface cannot be quickly updated during the polymerization reaction, resulting in a slow reaction rate of polymerization into balls, and the formation of mesophase carbon microspheres. Uneven particle size

Since this kind of polymerization reactor cannot be operated continuously for a long time, it leads to many problems such as low production efficiency of the device, high product cost, and unstable quality.

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