A kind of microwave roasting equipment

Abstract

The invention relates to mineral roasting equipment, in particular to microwave roasting equipment. The microwave roasting equipment comprises a charging device, a discharging device, a microwave roasting furnace, a microwave heating source, an exhauster for exhausting steam in the microwave roasting furnace and a cooling device, and is characterized in that turnover plate mechanisms are mounted in the microwave hearth of the microwave roasting furnace. Each turnover plate mechanism includes a turnover plate and a roller, each turnover plate is fixed on the roller and can turnover along the rotation of the roller, the two ends of each roller are fixed on a fireproof wall, and one end of each roller is connected with a motor. The amount of the turnover plate mechanisms is two. The turnover plates are made of a stainless steel material. The microwave roasting equipment has a simple structure; continuous production can be realized; a material does not agglomerate and block the channel of the hearth; a steam exhausting section, a temperature rising section and a roasting section in the microwave roasting equipment can be separated, the temperature points of the material are uniform, and the overall reduction rate is prompted.

Description

technical field [0001] The invention relates to a mineral roasting equipment, in particular to a microwave roasting equipment. Background technique [0002] In the mineral roasting-hydrometallurgy process, roasting not only makes the material chemically suitable for subsequent operations, but also provides a suitable physical state. The main industrial roasting devices include: multi-chamber roasting furnace, suspension roasting furnace, boiling roasting Furnace, blast roaster and sintered roaster. The energy of these conventional roasting methods is transferred by conduction and radiation, and the heat energy in the heated object mainly relies on heat conduction to gradually transfer from the surface to the inside. The heating rate of fire roasting is slow, and it takes a certain amount of time to make the central part reach the required temperature, so the holding time is long and the energy consumption is high. In addition, it needs to be equipped with devices such as r...

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Problems solved by technology

[0005] The furnace channel of this vertical roaster is easy to be blocked. This is because when the material layer is too thick, the exhaust is not smooth. The flow rate is uneven and the local temperature exceeds the standard; the overheated agglomerated material will sinter and adhere to the furnace wall when it descends to the furnace outlet position, eventually blocking the furnace channel

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