Equipment for steel slag air quenching and waste heat recycling
A waste heat recovery and steel slag technology, which is applied in the field of converter steel slag treatment equipment, high temperature steel slag treatment and heat recovery in converter steelmaking, can solve the problems of high temperature slag particle collection, loss of simple iron element, uneven feeding, etc. The effect of small land area, improved mobility, and reduced investment
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[0045] The present invention uses nitrogen as the quenching gas source, the grate conveyor 3 and the high temperature resistant bucket elevator 4 as the conveying equipment, the circulating fluidized bed waste heat boiler 5 is the sensible heat recovery equipment, and adopts the steel slag gas quenching and waste heat recovery process.
[0046] The equipment of the present invention includes an air quenching slag tank 1, a granulation wind tunnel 2, a grate cooling conveyor 3, a high temperature resistant bucket elevator 4, a circulating fluidized bed waste heat boiler 5, a nitrogen circulation pipe 6, and an external nitrogen pipe 7.
[0047] The figure shows that the slag discharge port of the wind quenching slag tank 1 is connected with the slag inlet of the granulation wind tunnel 2, and the granulation wind tunnel 2 is connected with the grate cooling conveyor 3. The lower part of the granulated wind tunnel 2 is a slope structure. The lower port of the granulated wind tunnel 2 ...
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