The utility model relates to the technical field of calcining equipment, in particular to
oxygen injection calcining equipment for
zinc oxide production. According to the technical scheme, the
heating furnace comprises an upper furnace body and a lower furnace body, the upper furnace body is fixedly connected to the top of the lower furnace body, the
heating furnace further comprises a telescopic
pipe and a connecting
pipe which are fixedly connected between the upper furnace body and the lower furnace body, an air inlet
pipe and an air outlet pipe are fixedly connected to the lower furnace body, and a heating
assembly used for heating air is arranged in the lower furnace body. An adjusting
assembly used for adjusting the air inlet amount of the air inlet pipe is fixedly installed on one side of the lower furnace. According to the utility model, air entering the upper furnace is heated, and insufficient and incomplete reaction caused by lower
air temperature is avoided, so that the production
utilization rate of
zinc oxide is improved; and meanwhile, air in the upper furnace flows uniformly,
zinc makes uniform contact with the air, the
calcination effect is improved, the air inlet amount of the air inlet pipe is adjusted, and the use requirement for
calcination equipment in zinc
oxide production is met.