Slag quenching system and process

Abstract

The invention discloses a slag quenching system, which comprises a tipping device, wherein the tipping device is provided with a tundish; the front of the tundish tipping device is provided with a granulator; an explosionproof quenching tank is arranged in the spraying direction of the granulator, and is connected with a dehydration and deslagging device through a sluiceway; a feed belt is arranged below a tapping device of the dehydration and deslagging device; one end of the feed belt is connected with a bunker; and a drainage ditch is arranged below the dehydration and deslagging device and is connected with a circulating water tank. A slag quenching process comprises the following steps of: 1, pouring slag of a slag ladle into the tundish; 2, pouring the slag in the tundish into the explosionproof quenching tank, quenching the slag by spraying water mist through the granulator, making granulated slag fall into the explosionproof quenching tank, flushing the explosionproof quenching tank to make the slag and water in the explosionproof quenching tank enter the sluiceway, and making the quenched slag enter the dehydration and deslagging device; and 3, making water separated by the dehydration and deslagging device fall into the drainage ditch and flow into the circulating water tank, and transporting the separated slag to the bunker for storage.

Description

technical field [0001] The invention relates to a steel slag water quenching system and process. Background technique [0002] In the current steel slag water quenching system, the steel slag in the slag tank is directly tipped into the water quenching tank, and the water mist of the granulator below the slag tank cuts and granules the steel slag and falls into the water quenching tank. When there are large pieces of solid steel slag in the steel slag, the high-temperature steel slag will directly penetrate the water mist of the granulator and fall into the water quenching pool without being granulated, causing the water in the water quenching pool to be partially vaporized, resulting in an explosion. . Moreover, when the steel slag comes out of the slag tank, due to the arc of the conical slag tank and the surface tension of the steel slag, the poured steel slag falls in strands, resulting in that the water quenching strength cannot be improved, and the water quenching ti...

AI Technical Summary

Problems solved by technology

The water quenching strength referred to refers to the amount of water-quenched steel slag per unit time. Theoretically, by increasing the water volume, the water-quenching strength will be increased accordingly. The steel slag discharged falls in strands. When the amount of water-quenched steel slag is increased, the amount of water-quenched steel slag in the granulator only increases locally, and cannot be evenly distributed in the spray direction of the granulator.

Therefore, it is easy to cause the liquid steel slag to penetrate the water mist formed by spraying water from the granulator without being granulated, and directly fall into the water to explode

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