Steel slag wind-crushing system

Abstract

The invention relates to a steel slag wind-crushing system which belongs to the steel slag treatment and is characterized in that a slag water sucking and separating device is arranged between a slag tank in a slag pretreating device and a magnetic separation belt in a slag separating device, wherein the slag water sucking and separating device mainly comprises a slag water sucker, a slag water pipeline, a slag water primary separating device, a slag water secondary separating device and a slag water third-stage separating device, a water return tank is arranged between the slag water primary separating device, the slag water secondary separating device and the slag water third-stage separating device and the slag tank; the outer side of a slag place is provided with a water circulating device, the water circulating device comprises a circulating water sedimentation tank, an absorbing well and a high-pressure pump which are sequentially connected, the high pressure pump is connected with the slag water sucker through a pipe, the periphery of a water-cooling granulator is additionally provided with a water-cooling sleeve and a water inlet pipe, a steam and dust collector of a dust-laying spraying device and a noise shielding chamber are arranged above the slag place of the slag tank, and the shielding chamber is externally provided with a steam and dust discharging pipe, a dust-laying chamber, a steam discharging pipeline and a steam discharging chimney which are sequentially connected. The invention treats the slag on-line so as to effectively utilize the resource, lowers the cost and reduces the consumption, saves the energy and reduces the emission, thereby meeting the environmental-friendly requirement.

Description

technical field [0001] The invention belongs to metallurgical steelmaking steel slag treatment, in particular to a steel slag treatment system. Background technique [0002] Steel slag treatment is an important link in the production chain of the modern metallurgical industry. Its technological process and treatment methods not only determine the work efficiency and treatment cost of steel slag treatment, but also directly lead to the availability of its products, and at the same time bring different impacts on the environment. influences. [0003] The original steel slag treatment technology is generally on-line pretreatment of high-temperature liquid steel slag and off-line deep processing of normal-temperature solid steel slag. There are many methods for on-line pretreatment of high-temperature liquid steel slag, which are generally arranged close to the smelting furnace, among which steel slag air crushing and granulation is one of the more typical methods; normal-tempe...

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Problems solved by technology

[0004] 1. Separation of pretreatment and deep processing, steel slag is transported twice, which increases operating costs, or without deep processing, steel slag is not separated from slag and steel, and limited resources are lost;

[0005] 2. Occupy arable land, special slag yard and deep processing line, causing secondary pollution;

[0006] 3. The steel slag stored in the pool can only be grasped by the crane in the gap between the wind and the wind, and the operating time of the crane is limited, which has potential safety hazards and cannot meet the needs of continuous production;

[0007] 4. The granulator is deformed due to high-speed air friction and scorching heat, resulting in disordered air flow and affecting the granulation effect of steel slag;

[0008] 5. The noise, dust and steam in the wind crushing will have adverse effects on the environment

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