Large capacity high temperature and high pressure solvent thermal reaction kettle

Abstract

The invention discloses a large-capacity high-temperature high-pressure solvent thermal reaction kettle. The large-capacity high-temperature high-pressure solvent thermal reaction kettle comprises a reaction kettle body and a flange cover, wherein an opening is formed in the top of the reaction kettle body; a flange plate corresponding to the flange cover is arranged on the top of the reaction kettle body; the flange cover is connected to the flange plate on the top of the reaction kettle body to form a sealed chamber with a working volume which is greater than or equal to 1000 liters; an electric heating tube is arranged on the flange cover, stretches into the reaction kettle body and is used for heating materials which are conveyed to the reaction kettle body and generating a solvothermal reaction condition with a working temperature of 450 DEG C and a working pressure of 43MPa. According to the large-capacity high-temperature high-pressure solvent thermal reaction kettle, the electric heating tube in the reaction kettle is used for directly heating the materials. Compared with the external heating, the condition that the external temperature of the reaction kettle is excessively higher than the working temperature can be avoided, so that the safety of the reaction kettle is improved; and a flow material system is directly heated, so that the large-capacity high-temperature high-pressure solvent thermal reaction kettle is quick in heat transfer speed, high in thermal efficiency and good in energy-saving effect.

Description

technical field [0001] The invention relates to an industrial reaction vessel, in particular to a large-capacity high-temperature and high-pressure solvent thermal reaction kettle with a working volume ≥ 1000L, so as to meet the preparation requirements of special materials such as nano sol. Background technique [0002] At present, large-capacity high-temperature and high-pressure solvent thermal reactors with a working volume ≥ 1000L, a maximum working temperature of 450°C, and a maximum working pressure of 43MPa are still in a blank state in China's chemical industry and can only rely on imports. The lack of such special reactors Seriously restricting the industrialization of nanomaterials in China. At the same time, the large-capacity high-temperature and high-pressure reactors commonly used at home and abroad still have the following deficiencies: (1) Because the working volume is ≥ 1000L, the maximum working temperature is 450°C, and the maximum working pressure The la...

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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a large-capacity high-temperature and high-pressure solvothermal reactor, which solves the problem that the external heating of the existing reactor can easily cause the temperature of a certain thickness of the outer wall to be too high and affect the strength and heat transfer of the reactor. Slow speed, high energy consumption and other problems, and at the same time solve the problem of poor corrosion resistance of the reactor under high temperature and high pressure conditions, and make up for the technical gap in the field of large capacity high temperature and high pressure reactors in my country

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