Cooling device for dye intermediate preparation

Abstract

The invention discloses a cooling device for dye intermediate preparation. The cooling device comprises a preparation reaction kettle discharging pipe, wherein a discharging opening of the preparationreaction kettle discharging pipe is connected with a first cooling box; openings are respectively formed in two ends of the first cooling box; the first cooling box is communicated with the preparation reaction kettle discharging pipe through the opening at one end; the bottom end inside the first cooling box is provided with an installing bottom plate; the top of the first cooling box is uniformly provided with heat radiation fans at equal distance; heat radiation openings are formed in two groups of side walls of the first cooling box; the top of the first cooling box is uniformly providedwith installing support frames at equal distance; the first cooling box is connected with a cold water pipe through the installing support frames; one end, far away from the preparation reaction kettle discharging pipe, of the first cooling box is communicated with a semicircle material conveying pipe. Through the first cooling box and a second cooling box, an intermediate product prepared by thedye intermediate can be fast and efficiently subjected to cooling and temperature reduction; the temperature reduction rate is fast; the temperature reduction efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of cooling devices, in particular to a cooling device for dye intermediates. Background technique [0002] Dye intermediates, also known as intermediates, generally refer to various aromatic derivatives used in the production of dyes and organic pigments. They are prepared from aromatics such as benzene, toluene, naphthalene and anthracene from coal chemical industry and petrochemical industry through a series of organic synthesis unit processes (see reaction process). With the development of the chemical industry, the application range of dye intermediates has been extended to the pharmaceutical industry, pesticide industry, explosives industry, information recording material industry, and production departments such as auxiliary agents, surfactants, spices, plastics, and synthetic fibers. There are many kinds of dye intermediates, and there are hundreds of more important ones. [0003] During the prepara...

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Problems solved by technology

[0003] During the preparation of dye intermediates, the intermediate products of the dye intermediates must be cooled after high-temperature reaction before proceeding to the next step of process treatment, while the existing cooling usually adopts natural cooling or blowing in cold air for cooling , this method has low efficiency and long cooling time, which greatly increases the preparation time of dye intermediates. Therefore, we have designed a new cooling device for dye intermediates to solve the above problems

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