N-N-diethyl m-methylbenzamide reactor

Abstract

The invention discloses an N-N-diethyl m-methyl benzamide reactor which comprises a kettle body, a shell and a cover body. The outer side wall of the kettle body is sleeved with the shell, and a discharge port is welded in the center of the bottom of the shell. Supporting columns are welded to the edge of the bottom end of the shell at equal angles, and the bottom ends of the supporting columns are sleeved with flange plates. The cover body is arranged right above the shell, and a driving mechanism is mounted in the center of the top end of the cover body. A main feeding opening is formed in the left side of the top end of the cover body, and auxiliary feeding openings are formed in the right side of the top end of the cover body at equal angles. Butt joint openings are fixedly formed in the top ends of the auxiliary feeding openings, shaft sleeves are arranged on the outer sides of the butt joint openings, and conveying pipes are fixed to the top ends of the shaft sleeves. According to the N-N-diethyl m-methylbenzamide reactor, the assembling efficiency of the reactor is improved, the stability of the reactor during operation is improved, and safety and convenience during feedingare achieved.

Description

technical field [0001] The invention relates to the technical field of chemical reaction devices, in particular to an N-N-diethyl-m-toluamide reactor. Background technique [0002] N-N-diethyl-m-toluamide is a common chemical product, which has a large demand in the fields of preparation of mosquito repellants and strong solvents. In the prior art, the raw materials for the preparation of this substance are mainly ethylenediamine, water, benzene, m-toluoyl chloride and acid absorption refining preparation, etc., and are produced in batches through a dedicated reactor. [0003] But existing N-N-diethyl m-toluamide reactor still has certain problems, and specific problems have the following points: [0004] 1. In the prior art, since this type of reactor is often accompanied by a variety of supporting components, a combined installation structure is often used. However, due to the lack of convenient limiting and positioning structures, problems such as installation misalignme...

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Problems solved by technology

[0004] 1. In the prior art, since this type of reactor is often accompanied by a variety of supporting components, a combined installation structure is often used. However, due to the lack of convenient limiting and positioning structures, problems such as installation misalignment and loose positioning may occur;

[0005] 2. Especially the connection between the reactor and the supporting structure (ground, platform), often due to the unevenness of the supporting structure or the influence of internal and external vibrations, etc., the reactor shakes or collides, and then the reactor and its interior react negatively;

[0006] 3. During the preparation reaction of N-N-diethyl-m-methylbenzamide, toxic gas will be produced, which may leak from the feed port, so there is a certain potential safety hazard

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