Oxygen injection calcinator for production of zinc oxide

Abstract

The invention discloses an oxygen injection calcinator for production of zinc oxide. The oxygen injection calcinator comprises a motor I, a combustion chamber, a cyclone collector and a feeder, wherein an oxygen injection pipe is arranged above the motor I, the motor I is communicated with the combustion chamber through a fuel injection pipe, a thermometer is arranged above the combustion chamber, the cyclone collector is arranged between a conveying pipe and a zinc oxide storage chamber, the conveying pipe is connected with the combustion chamber through a filtering interlayer, a zinc powder storage chamber is installed below the feeder, the feeder is connected with the combustion chamber through a zinc powder injection pipe, and a motor II is arranged between the feeder and the cyclone collector. The oxygen injection calcinator has the beneficial effects that zinc powder and oxygen are calcined to produce the zinc oxide, then the contact area of zinc and oxygen is increased, so that the production efficiency of the zinc oxide is improved, production of impurities during reaction between zinc and gas in the air is avoided, and the quality of the zinc oxide is improved.

Description

technical field [0001] The invention belongs to the field of zinc oxide production equipment, and in particular relates to an oxygen-injected calciner for zinc oxide production. Background technique [0002] Zinc oxide is an oxide of zinc, which is widely used in the production of plastics, silicate products, synthetic rubber, lubricating oil and other products. The production of zinc oxide by calcining zinc ingots is an important zinc oxide production method, accounting for 50% of current zinc oxide production. The application number is: 201510102553.2 Chinese patent, the specific content is: a kiln for the production of zinc oxide that can recover and utilize the heat in the flue gas, including: an oxidation chamber surrounded by furnace walls, a furnace, a flue and a combustion chamber There is a burner in the combustion chamber, a zinc melting pot in the flue, and an evaporation pot in the furnace. The volatilization channel is connected with a smoke exhaust pipe at th...

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Problems solved by technology

The above patents produce zinc oxide by calcining zinc ingots in the air. The contact area between zinc ingots and oxygen is small, and the production efficiency is low. The reaction between zinc ingots and components in the air will generate impurities, resulting in high impurity content in zinc oxide.

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