Multilayer centrifugal granulator for efficiently treating large-flow liquid slag

Abstract

The invention discloses a multilayer centrifugal granulator for efficiently treating large-flow liquid slag. The multilayer centrifugal granulator comprises a granulator main body, a tray (4) and a rotating shaft (5); the tray (4) is fixed at the top end of the rotating shaft (5); the granulator main body (1) is fixed on the tray (4); the granulator main body (1) is composed of a plurality of granulating units which are stacked along the height direction; all the granulating units are coaxially arranged; the granulating units except the granulating unit at the bottommost layer are all arrangedas a rotary-cup structure, and the side walls of the granulating units except the granulating unit at the bottommost layer are all provided with a plurality of flow distribution holes (3); and the flow distribution holes (3) are uniformly distributed along the circumferential direction of the wall surfaces of the granulating units. According to the multilayer centrifugal granulator, the size of particles is effectively reduced, slagging is inhibited, and the device can be widely applied to the fields of iron and steel metallurgy, waste heat recovery, chemical engineering and the like.

Description

technical field [0001] The invention relates to a centrifugal granulator, in particular to a multi-layer centrifugal granulator for efficiently processing large-flow liquid slag. Background technique [0002] Using centrifugal granulation technology to treat high-temperature liquid slag is the most promising way to recover waste heat from high-temperature liquid slag while taking into account the material quality. Under the action of centrifugal force, the high-temperature liquid slag will be granulated into fine droplets, and the droplets are rapidly cooled and solidified under the action of the cooling air flow to form particles and release a large amount of heat. During this process, due to the rapid cooling of the particles, particles with high vitreous content will be formed, which can be used as cement additives. At the same time, a large amount of high-temperature gas obtained can be used in waste heat boilers to generate steam and drive steam turbines to generate el...

AI Technical Summary

Problems solved by technology

The space near the active blast furnace is very limited, and the number of granulation bins cannot be increased without limit. Therefore, it is urgent to develop a new type of centrifugal granulator that can increase the throughput of a single granulator, so as to reduce the number of granulation bins, thereby reducing the particle size. Footprint of the chemical bin array

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