Method for charging and emptying aluminum powder and control system thereof

Abstract

The invention discloses a method for charging and emptying aluminum powder and a control system thereof, belonging to the field of petrochemical industrial equipment, in particular to a device for charging aluminum powder in production equipment of aluminium ethyl and a control method thereof. In the invention, the control system for charging and emptying the aluminum powder consists of an aluminum powder charging and emptying device and a control unit; the control unit is consists of a nitrogen gas control unit, a pressure detection unit and a vacuum control unit; a first charging valve is used for controlling the opening and closing of the feed opening of a feeder and the inlet point of an emptying device; and a baiting piston unit is used for controlling the opening and closing of a channel between the inlet point of the emptying device and the inlet point of a reactor. Due to the reasonable allocation of the control system for charging and emptying aluminum powder in the invention, a nitrogen displacement tank body and a material transferring tank body can be controlled to be mutually independent, and can work simultaneously without mutual interface so as to optimize th process and improve the industrial efficiency; and compared with the prior art, the method for charging and emptying aluminum powder in the invention is more simple, safer and more reliable, facilitates an operator to master and effectively improves the operating efficiency.

Description

technical field [0001] The invention belongs to the field of petrochemical equipment, in particular to aluminum powder feeding equipment and a method thereof in the production equipment of triethylaluminum. 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...

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 reactor, which makes it difficult to put the aluminum powder in smoothly, which makes feeding difficult;

[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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