Energy-saving and consumption-reducing scrap steel preheating spray gun

Abstract

The invention discloses an energy-saving and consumption-reducing scrap steel preheating spray gun, and relates to the technical field of ferrous metallurgy. The energy-saving and consumption-reducingscrap steel preheating spray gun comprises a gun body, one side of the gun body is fixedly connected with a fuel gas inlet pipeline communicating with the gun body, the bottom end of the gun body isfixedly connected with a fuel gas accelerator a, the bottom end of the fuel gas accelerator a is connected with a fuel gas distributor, the bottom end of the fuel gas distributor is connected with a fuel gas injection mechanism a and a fuel gas injection mechanism b, and the fuel gas injection mechanism b is fixedly connected with a mixed gas injection mechanism. According to the energy-saving andconsumption-reducing scrap steel preheating spray gun, the preheating effect is enhanced, the covering range is large, preheating is uniform, the combustion rate and the utilization rate of fuel gasare guaranteed, the preheating speed is high, fuel gas is saved, and the energy-saving and consumption-reducing effects are obvious.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to an energy-saving and consumption-reducing scrap steel preheating spray gun. Background technique [0002] With the rapid development of the national economy, the cumulative amount of steel scrap in my country is increasing rapidly. Whether it is the converter steelmaking process or the electric furnace steelmaking process, improving the effect of energy saving and emission reduction and improving the utilization rate of valuable elements in scrap steel are the current developments in the field of iron and steel metallurgy technology. problems that need to be faced. [0003] Under normal conditions, scrap preheating can shorten the production rhythm of the converter process and the electric furnace steelmaking process, and improve production efficiency. At present, many steel mills add steel scrap to iron ladle or steel ladle, and then use traditional baker burne...

AI Technical Summary

Problems solved by technology

However, when the traditional scrap preheating flame is ejected from the burner, the combustion space is insufficient and the upward lift force is very large, it is difficult to press down into the iron ladle or ladle to heat the scrap steel, causing a large amount of heat energy to radiate and burn in the outer space of the ladle

Therefore, it takes more time to bake, resulting in a large waste of gas

Moreover, this method has insufficient gas combustion, low combustion temperature, and long baking time, which is difficult to meet the fast-paced production requirements of the converter process or the electric furnace process.

And when using a single burner set on the cover for baking, the flame coverage is small, and the flame is directly facing the position to bake better, and even local melting occurs, but the preheating temperature of the scrap steel in the area far away from the flame is very low, causing preheating Very uneven phenomenon, it is difficult to meet the scrap preheating requirements of steel mills

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