Molybdenum oxide roasting kiln

Abstract

The invention provides a kiln for roasting molybdenum oxide. One end of a kiln barrel is provided with a guiding barrel and a guiding sleeve; the outside of a combustion cavity of the kiln barrel is sleeved with a combustion cavity barrel; the front of the combustion cavity is provided with a flow distribution plate; a flow distribution port is respectively arranged at the ends of the flow distribution plate and the combustion cavity barrel; a backflow cavity is arranged at the flow distribution plate and the outside of the inner wall of the kiln barrel combustion cavity; a turning port and aturning plate are arranged between the backflow cavity and a reflow cavity; the reflow cavity is arranged between the kiln barrel and a backflow cavity barrel; and a roasting cavity is arranged at one end of the kiln barrel of the outside of the reflow cavity. All the barrel walls and the plates of the kiln are made of heat-resistant steel plates. The kiln has turning and reflow structure and forms a plurality of cavities, thus being characterized by high heat utilization ratio and light, short and hard ring-forming of the kiln, having good energy saving and environment protection and being applicable to the application of roasting the molybdenum oxide.

Description

technical field [0001] The invention provides a molybdenum oxide roasting device, specifically a molybdenum oxide roasting kiln body. Background technique [0002] After the molybdenum concentrate is roasted to become molybdenum oxide, the soluble molybdenum salt can be further extracted, and then smelted into molybdenum metal or its alloy. In the past fifty years, the roasting kilns for molybdenum oxide at home and abroad have basically adopted two structures. One is the traditional reverberatory kiln from the former Soviet Union, which directly uses coal as fuel. The kiln used for roasting molybdenum oxide has low yield, high labor intensity, high temperature operation, and serious smoke pollution. Furnace form. The second is the straight rotary kiln adopted in recent years. Although it has improved compared with the reverberatory kiln, its kiln weight (the chamber is lined with refractory bricks), long furnace body, large floor area, large equipment supporting power, an...

AI Technical Summary

Problems solved by technology

One is the traditional reverberatory kiln from the former Soviet Union, which directly uses coal as fuel. The kiln used for roasting molybdenum oxide has low yield, high labor intensity, high temperature operation, and serious smoke pollution. furnace form

The second is the straight rotary kiln adopted in recent years. Although it has improved compared with the reverberatory kiln, its kiln weight (the chamber is lined with refractory bricks), long furnace body, large floor area, large equipment supporting power, and low yield

At the same time, since refractory bricks occupy a large volume of the furnace and increase the weight of the furnace body, the equipment needs a lot of power and high power consumption

The straight cylinder rotary kiln adopts a straight cylinder structure, which has small frontal resistance, poor heat preservation effect, relatively high fuel consumption, and molybdenum dust is easy to fly

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