Automatic circulating water descaling system for hot-rolled rod and wire steel

Abstract

An automatic circulating water descaling system for hot-rolled bar and wire steel, the invention discloses an automatic circulating water descaling system for billets. It is composed of automatic backwashing water filter, high-level water tank, pneumatic jet valve, plunger pump descaling box and electric control cabinet. Its working method is: the descaling water enters the high-level water tank after being filtered. The signal generated by detecting the water level of the water tank by the magnetic float level gauge controls the closing of the electric water supply valve. The descaling water enters the descaling box header after being pressurized by the plunger pump after a steady flow. When the hot metal detector first detects the temperature of the billet head, it sends out a signal to control the closing of the pneumatic injection valve. The descaling water falls into the descaling box after descaling. When the hot metal detector detects the temperature of the tail of the billet, a signal is sent to control the automatic opening of the pneumatic injection valve. The water in the descaling tank is circulated to the head tank. Because the system is equipped with pneumatic injection valve, electric water supply valve, magnetic float liquid level gauge, etc., the degree of automation is greatly improved. Because of the return water pipeline, the descaling water can be recycled, which saves a lot of production water and reduces the production cost of the enterprise.

Description

technical field [0001] The invention discloses a billet automatic circulating water descaling system. Background technique [0002] At present, in the rolling process of hot-rolled rods and wire billets, most of the water descaling equipment used are extrusion descaling machines or tumbling descaling machines. The extrusion descaling machine works on the way to the rolling mill after the billet is released from the furnace. The extrusion descaling machine mechanically extrudes the four corners of the billet to lift the scale on the billet surface, and then sprays the billet surface with medium and low pressure descaling water , Remove the raised oxide skin. The tumbling descaling machine turns the billet several times on the roller table to break the scale on the surface of the steel, and then sprays the surface of the billet with medium and low pressure descaling water to remove the scale. The disadvantages of these two machines are complex structure, complex process, low...

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Problems solved by technology

To solve the problems existing in the existing equipment

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