Efficient energy-saving adjustable electronic control electrolytic aluminum crust breaking valve terminal system

Abstract

The invention discloses method for controlling an efficient energy-saving electronic control electrolytic aluminum crust breaking valve terminal. A efficient energy-saving electronic control electrolytic aluminum crust breaking valve terminal system comprises an air source inlet, a first electromagnetic reversing valve, an air control reversing valve, a throttling valve for regulating speed and a single valve for controlling fast reverse which are integrated; the air source air inlet is connected with two outlets of a valve terminal again through passages of the electromagnetic reversing valve, a pneumatic control valve and the throttling valve; the two outlets on the valve terminal are respectively connected with a rod cavity and a rodless cavity of an air cylinder; an energy-saving mode is adopted firstly, a coil of the first electromagnetic reversing valve is electrified, a valve core of the first electromagnetic reversing valve acts and controls a valve core of the air control reversing valve to the energy-saving operation position; air enters the rodless cavity of the air cylinder, the throttling valve controls the air exhaust speed of the rod cavity, the rod cavity exhausts a gas, a unidirectional valve is closed, and a piston rod runs downwards; after an aluminum crust is broken through, the coil of the valve is power off and is closed, a valve core of the valve is reset, a unidirectional valve connected with the rod cavity is started up, air enters the rod cavity rapidly, the air cylinder returns, the piston rod returns soon, and fast reverse is realized; and if the aluminum crust is difficult to break through by an electrolytic aluminum crust breaking hammer head, a conventional mode is adopted.

Description

technical field [0001] The invention relates to an electrolytic aluminum shelling valve island system, in particular to a control system for the working mode of the shelling cylinder and the movement speed of the piston rod through the valve island system. Background technique [0002] At present, the domestic aluminum industry uses electrolytic aluminum liquid to produce aluminum. The shelling (cutting) material system is the key equipment for the production of electrolytic aluminum. It automatically controls the coordination and cooperation between shelling and cutting by computers and PLCs to complete the normal production of electrolytic aluminum. Since the electrolytic aluminum equipment was put into production, there has been a problem that the cylinder piston cannot return quickly due to the excessive inertia of the shelling hammer head during the downward extension process, and the hammer head is soaked in the aluminum liquid for too long, which directly affects the ...

AI Technical Summary

Problems solved by technology

Because the energy consumption of the gas discharged by the cylinder is too high for each action, it can be considered to reuse the gas discharged from the rod cavity of the cylinder; there is a large amount of alumina dust in the electrolytic cell workshop, and some of the dust will adhere to the piston rod of the shelling cylinder. During the long-term operation of the cylinder, the dust adsorbed on the piston rod will rub against the sealing ring of the cylinder body, resulting in serious leakage inside the cylinder body

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