Slag granulation equipment

Abstract

The invention discloses slag granulation equipment, which partially utilizes polluted process emission substances in a steam heat cleaning metallurgy process and is applied to production of condensate. The equipment comprises a slide chute, a hydraulic nodulizer, a sediment receiving cabin, an overflow device, a steam / gas emission collecting chamber, an air lifter, a slag chamber, a water clarifying chamber, a slurry dehydrator and a slag conveyer, wherein a grid of the sediment receiving cabin is arranged at the position which is 1-3m away from the horizontal (mark) direction of the overflow device; the size of the grid hole is 1 / 4 to 1 / 2 of the diameter of an opening of a suction tube of the air lifter; the air lifter is formed by a zone of a stainless steel tube in which Kamnelit (hard vanish) insertion is lined, and comprises an air nozzle made of wear-resisting cast iron; and the feature size of the suction pipe in front of the air nozzle is 1.0-0.8 times of the diameter of a lift tube of the air lifter. By adopting the slag granulation equipment, the working reliability of the equipment is improved, the service life is prolonged, the dehydrator is compact, and steam is recovered from the granulation equipment through a heat exchanger by using exudation generated in the thermal purification metallurgy process of the slag.

Description

technical field [0001] The system according to the invention is used for the granulation of molten slag, preferably as a slag granulation plant, partly using steam heat, for cleaning polluted process emissions of metallurgical processes via cascade evaporation and subsequent condensation and Production of condensate for technical purposes. Background technique [0002] The slag granulation plant is equipped with a slag chute, a slag dispersing hydraulic granulator, a sediment receiving bin with a grill, an overflow unit with an exhaust pipe, an air lifter connected to a rotary dehydration unit, and a A circulating water container with a pump connected to the hydraulic granulator (SU529132, published in 1971) [1]. [0003] Some equipment has grilles with hole sizes that do not correspond to other features of the equipment and fixtures. The wear resistance of the air lifter of the equipment is insufficient. There is no equipment to remove the slurry from the water clarifica...

AI Technical Summary

Problems solved by technology

The weakness of this plant is the loss of heat from the slag and the significant energy consumption for cooling, conveying circulating water and cooling air is unavoidable

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