Control device for cover of electric induction furnace
A control device and furnace cover technology, applied in furnaces, furnace components, lighting and heating equipment, etc., can solve problems such as large heat loss
Inactive Publication Date: 2012-07-18
KEHUA HLDG
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The invention relates to a control device for a cover of an electric induction furnace. A framework with a vertical shaft in the middle is arranged on one side of a furnace body, a sleeve is installed outside the vertical shaft through a bearing in sleeve mode, a connection rod is installed at the upper end of the sleeve through a connecting rod I and a pin shaft I, a lifting cylinder is installed between the sleeve and the connection rod, and the connection rod is further connected with a big furnace cover. Two limiting contact blocks of a limiting switch X2 are further installed between a lifting cylinder tube body and the connection rod, a rotary cylinder is further installed on the framework, a piston rod of the rotary cylinder is connected with the sleeve through a pin shaft III and a connecting rod V, and two limiting contact blocks of a limiting switch X1 are further installed between the rotary cylinder tube body and the sleeve. A high-pressure air pump is respectively communicated with the lifting cylinder and a front air chamber and a rear air chamber of the rotary cylinder through a solenoid directional valve DTI and a solenoid directional valve DTII, and a 220-volt alternate current power source is respectively electrically connected a first return circuit, a second return circuit, a third return circuit, a fourth return circuit, a fifth return circuit and a sixth return circuit through an L connection point and an N connection point. The control device for the cover of the electric induction furnace can open and close the furnace cover safely and conveniently,can greatly reduce loss of heat energy and greatly reduces casting cost.
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