Graphite reactor

Abstract

The invention relates to a graphite reactor. The graphite reactor comprises a driving stirring device and a reaction barrel body; the driving stirring device comprises an explosion-proof motor, a speed reducer, a stirring shaft and a stirring gear, and further comprises a sealing structure; the reaction barrel body comprises a graphite reactor liner, a steel-structure shell, auxiliary supporting legs and a temperature measuring structure; the graphite reactor liner sequentially comprises an upper end socket, a graphite inner barrel body 91 and a lower end socket; the graphite inner barrel body and the lower end sockets are provided with flow channels for heat-exchange media to flow; the steel-structure shell comprises an upper cover plate, a lower cover plate and an outer barrel; the auxiliary supporting legs are arranged on the lower cover plate; and the temperature measuring structure of the graphite reactor is located at the lower end part of the reaction barrel body. The graphite reactor has the advantages that a heat-exchange medium flow channel design with a better heat dissipation property is realized; the sealing structure with a good sealing effect is arranged at the connection part of the driving stirring device and the reaction barrel body; the temperature measuring structure is improved so that the temperature measuring structure is firmer and safer and is convenient to detach; and the graphite reactor has a simple whole structure, is convenient to machine and manufacture and is economical and practical.

Description

technical field [0001] The invention relates to a reactor, in particular to a graphite reactor. Background technique [0002] Graphite reactor has good high temperature resistance, thermal conductivity, lubricity, chemical stability, plasticity, thermal shock resistance, etc. When graphite is used at room temperature, it can withstand drastic changes in temperature without damage. The volume of the graphite reactor does not change much, and no cracks will occur. Therefore, graphite is used as a material for making reactors in many reactions, but the strength of graphite is not high. It is often necessary to make a steel structure skin on the outer layer of graphite reactors. The same is true for the upper end of the graphite reactor. The upper end of the graphite reactor needs to be connected with a stirring shaft. The sealing requirements of the joint are very high, and the current technology is not perfect. [0003] The graphite reactor generally has a temperature measuri...

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Problems solved by technology

[0002] Graphite reactor has good high temperature resistance, thermal conductivity, lubricity, chemical stability, plasticity, thermal shock resistance, etc. When graphite is used at room temperature, it can withstand drastic changes in temperature without damage. The volume of the graphite reactor does not change much, and no cracks will occur. Therefore, graphite is used as a material for making reactors in many reactions, but the strength of graphite is not high. It is often necessary to make a steel structure skin on the outer layer of graphite reactors. The same is true for the upper end of the graphite reactor. The upper end of the graphite reactor needs to be connected to a stirring shaft. The sealing requirements of the connection are very high, and the current technology is not perfect.

[0003] Generally, there is a temperature measuring device in the graphite reactor. The existing temperature measuring device is not fixed firmly, and the thermocouple tube is not easy to replace, and the thermocouple tube is directly placed in the inner cylinder 91 without protective parts, which is easy to be damaged.

[0004] The heat of reaction inside the graphite reactor is dissipated through the interlayer filled with heat transfer medium between the outer skin and the graphite liner, but the heat transfer medium will corrode the outer skin of the steel structure, damage the outer skin, and reduce the service life

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