Magnesium smelting reduction deslagging and residual heat recycling device and process

The invention relates to a magnesium smelting reduction deslagging and residual heat recycling device and process, belonging to the field of metal magnesium smelting, in particular to a magnesium smelting reduction automatic deslagging and residual heat recycling device and technology. The device comprises a reducing furnace, a deslagging machine, a chain bucket conveyor, a slag cooling machine, a bucket elevator, a bag-type dust collector and a slag storeroom; mechanical automation is realized in whole deslagging, transportation, cooling, conveying and storage processes; the waste slag temperature is reduced from 1,000 DEG C or so to below 100 DEG C by the slag cooling machine; the residual heat of the waste slag is effectively recycled, and energy saving and emission reduction are realized; the waste slag does not fall on the ground in the deslagging process and is dry powdery slag after cooled and can be used as a building cement raw material, and the aim of changing waste materialinto things of value is a