A steel slag cooling and crushing treatment system and method for plowing and synchronous steam decomposition

Abstract

The invention discloses a steel slag crushing and cooling treatment system for synchronous water vapor decomposition by plow breaking, comprising a steel slag plant, a turbid ring water system is arranged inside the steel slag plant, and a slag spreading plow is arranged on the right side of the turbid ring water system area, a transfer system is set on the right side of the slag plowing area, a water vapor collection tank is set on the right side of the slag plowing area, a crane is installed on the right side of the water vapor collection tank, and a crane is installed under the crane A steam drum is provided, and a dust removal device is provided on the left side of the steam drum, and a PLC control system is provided on the left side of the dust removal device.

Description

technical field [0001] The invention relates to the technical field of steel slag treatment, in particular to a steel slag cooling and crushing treatment system and method for plowing and synchronous steam decomposition. Background technique [0002] In the metallurgical iron and steel manufacturing industry, steel slag treatment methods have successively gone through steel slag dumping, hot water spraying method, wind quenching method, water quenching method, roller method, and roller pressing method. And it is basically a process of spraying water onto the surface of the steel slag for cooling, or the cooling and solidification of the hot molten steel slag is realized by the method of rolling and stirring the steel slag with the stirring teeth on the roller and spraying water on the surface to cool it. But the above method still has the following problems to be solved: [0003] (1) As the surface is cooled by spraying water, the surface of steel slag is rapidly cooled and...

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Problems solved by technology

[0003] (1) As the surface is cooled by spraying water, the surface of steel slag is rapidly cooled and solidified, and the amount of hydration reaction between free calcium oxide f-CaO and free magnesium oxide f-MgO in steel slag is relatively small, which increases the amount of hydration in the subsequent slag treatment process. The burden of dissolving free calcium oxide f-CaO and free magnesium oxide f-MgO into Ca(OH)2 and Mg(OH)2 will increase the time and amount of digestion by water spraying, and then affect the free calcium oxide f in the tailings after simmering - The content of CaO and free magnesium oxide f-MgO affects the stability of steel slag tailings when reused as raw materials for building materials, and cannot guarantee that the building materials will not deform;

[0004] (2) In the currently used pressure slag slag method, the water vapor collected by the slag slag tank has been discussed and experimentally carried out for steam power generation. However, due to the unstable pressure and temperature of the steam generated by steel slag, the pressure is low and the dust content is large. The maintenance intensity of power generation equipment is high, the power generation equipment is easily damaged, and the power generation is low, and the economic benefit is poor;

[0005] (3) The status quo is basically dissipated after being treated by the dust removal system. On the one hand, it is a waste of energy, and on the other hand, it increases the cost consumption of dust removal and cooling

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