Feeding control unit

Abstract

The invention discloses a feeding control unit which relates to a control device of aluminum powder feeding equipment in aluminum triethyl production equipment. The feeding control unit consists of a nitrogen control unit, a pressure detection unit and a vacuum control unit, wherein the nitrogen control unit consists of a first nitrogen valve unit and a second nitrogen valve unit; the first nitrogen valve unit is arranged between a nitrogen source and the nitrogen replacing tank body of the feeding device; and the second nitrogen valve is arranged between the nitrogen source and the feed delivery tank body of the feeding device. The invention can independently control different working tanks, and the two tank bodies work at the same time without interfering with each other, thereby optimizing the process and enhancing the industrial efficiency; and the invention has simpler structure, is easier for operators to master, and can effectively improve operating efficiency and equipment safety.

Description

technical field [0001] The invention belongs to the field of petrochemical equipment, in particular to a control device for aluminum powder feeding equipment in triethylaluminum production equipment. Background technique [0002] The production of triethylaluminum is an existing technology, such as the commonly known "two-step method" process: first mix triethylaluminum seeds and aluminum powder in a seed metering tank and then transfer them to a reaction kettle, and hydrogen is introduced into the kettle for hydrogenation reaction to generate diethylaluminum hydride, then all the reaction solution is transferred to the ethylation reactor and ethylene is added for ethylation reaction to generate triethylaluminum crude product, and 84%-85% of the product generated by each kettle is returned to After adding aluminum powder into the seed metering tank and mixing it, it is transferred to the hydrogenation reactor for the next reaction, and the remaining 15% of the product enters...

AI Technical Summary

Problems solved by technology

[0006] The published Chinese patent "00819839.X crystallization and refining device and method", although related to the feeding technology in the production process of chemical products, can not solve such problems: when the aluminum powder is put in, due to the sticky characteristics of the aluminum powder itself and the There is usually a slight positive pressure in the reaction kettle, which makes the feeding of aluminum powder always difficult, which makes feeding difficult, and easily causes the danger of flammable gas leakage;

[0009] In addition, the reaction heat removal process and equipment in the reactor are not optimized enough, etc. Therefore, the industry urgently needs a production equipment for triethylaluminum with simpler equipment, simpler operation and higher safety.

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