Extreme-speed air cooling treatment device and method for liquid steel slag

Abstract

The invention provides an extreme-speed air cooling treatment device and a method for liquid steel slag. The device comprises a traveling crane device, a slag tank, a tipping platform, a hydraulic control system, a chute, a constant-pressure air system, a screening platform and an automatic control platform, the automatic control platform command is received in real time by the tipping platform and the constant-pressure air system, a pouring angle is detected and adjusted in real time to control the flow speed, and the constant-pressure air flow pressure is adjusted in real time, so that the flow speed and the pressure are highly matched, the formed steel slag pill is of a crystal structure, f-CAO is not contained inside, and the performance is more stable. The produced product has the advantages of high hardness, stable performance, wear resistance, the density is 3.6-4.2 T / m3, the iron element is directly a divalent iron form, the market application is wide, the added value is high,and the product can be applied to weight, abrasive materials and high-performance water permeable bricks.

Description

technical field [0001] The invention relates to the technical field of environmental protection recycling, in particular to an extremely fast air cooling device and method for liquid steel slag treatment. Background technique [0002] As an accompanying product in steel production, steel slag has always been a stumbling block restricting the development of the industry due to its large annual quantity, large storage area, low application value, and serious pollution, and cannot meet today's environmental protection requirements. At present, there are several major types of treatment methods in the industry. The first is the hot splashing method, which is seriously polluted and occupies a large area; the second is the water quenching method, which has water pollution and is prone to explosion when encountering water; the second is the water quenching method. Three kinds of drum methods, the method has high cost, high failure rate, and low processing efficiency; the fourth hot...

AI Technical Summary

Problems solved by technology

[0002] As an accompanying product in steel production, steel slag has always been a stumbling block restricting the development of the industry due to its large annual quantity, large storage area, low application value, and serious pollution, and cannot meet today's environmental protection requirements

At present, there are several major types of treatment methods in the industry. The first is the hot splashing method, which is seriously polluted and occupies a large area; the second is the water quenching method, which has water pollution and is prone to explosion when encountering water; the second is the water quenching method. Three kinds of drum methods, the method has high cost, high failure rate, and low processing efficiency; the fourth hot stuffy method, this method is prone to secondary environmental pollution; the fifth wind quenching method, one of which is the production of iron oxide The form is trivalent iron; the second method needs to use inert gas, such as nitrogen to control the generation of iron oxide form, to achieve the purpose of producing ferrous iron, and there are certain safety hazards

Images