Manganese ore roasting rotary kiln system

Abstract

The invention relates to a manganese ore roasting rotary kiln system, comprising a batching system, a feeding system, a rotary kiln, a tail gas dust removal system and a gas burner. The batching system comprises a batching belt weigher; the batching belt weigher is provided with a quality inspection device; the feeding system comprises a disc feeder and a feeding chute; the tail gas dust removal system comprises a cooler, a cloth bag type dust remover, an induced draft fan and a chimney; the gas burner comprises a gas burner nozzle and a control valve set; the cooler is provided with a kiln-out tail gas detection device; the kiln-out tail gas detection device detects the content of various smoke in kiln-out tail gas; and the quality inspection device inspects the quality of manganese ore to be batched. When the smoke content in the kiln-out tail gas exceeds a preset value, it is indicated that the roasting reaction in the rotary kiln is insufficient; and the rotary kiln is fed by adjusting the disc feeder and the feeding chute to increase the quality of the manganese ore in the rotary kiln, so that the roasting reaction in the rotary kiln is more sufficient, the emission of smoke is reduced, the cost and resources are saved, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of manganese ore roasting, in particular to a manganese ore roasting rotary kiln system. Background technique [0002] Roasting refers to heat treatment in air or inert gas flow at a certain temperature, also known as calcination. In the manganese ore roasting metallurgical process, roasting not only makes the material chemically suitable for subsequent operations, but also provides a suitable physical state. Rotary kiln refers to a rotary calciner, a thermal equipment for heating bulk or slurry materials. Its characteristics are: (1) low speed and heavy load; (2) high ambient temperature, the surface temperature of the rotary kiln shell is often above 200 ° C, and a large amount of heat is radiated to the surrounding; (3) the environment is dusty, the sealing belt of the rotary kiln and the The kiln dust conveying equipment and the chimney at the end of the kiln all scattered dust around; (4) The degree o...

AI Technical Summary

Problems solved by technology

Its characteristics are: (1) low speed and heavy load; (2) high ambient temperature, the surface temperature of the rotary kiln shell is often above 200 ° C, and a large amount of heat is radiated to the surrounding; (3) the environment is dusty, the sealing belt of the rotary kiln and the The kiln dust conveying equipment and the chimney at the end of the kiln all scattered dust around; (4) The degree of kiln lining damage varies with the temperature of each section, which is likely to cause damage to local refractory materials; (5) There is sliding accumulation of powder in the kiln, Some granular materials are impervious to roasting, resulting in "dead burn" of the powder and the quality of the granular materials cannot be guaranteed

[0003] Manganese ore roasting process will produce a variety of flue gas that pollutes the environment, especially in the case of insufficient reaction of the rotary kiln, more flue gas that pollutes the environment will be produced. The current rotary kiln directly processes the flue gas generated In order to reduce the pollution to the environment, but this treatment method cannot accurately monitor the flue gas volume, the input cost is high, and the resource waste is serious

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