A moving door device of a large electron beam cooling hearth furnace

Abstract

The invention discloses a movable door device for a large-scale electron beam cooling hearth furnace, which comprises: a movable door trolley frame, which is composed of a flat frame and a vertical furnace door; Wheel combination; a pair of furnace inner rails and outer furnace rails; a crucible for electron beam cooling bed furnace is placed in the front area of ​​the mobile door trolley frame, a chute trolley frame is placed in the middle area, and a feeding chute is installed on the on the trolley frame of the chute; the trolley frame of the movable door adopts a built-in water cooling structure, and water inlet and outlet nozzles respectively connected to the crucible, the feeding chute and the cooling water of the furnace door are set on the furnace door, and these inlet and outlet nozzles are moved The main water inlet pipe of the door and the main water outlet pipe of the moving door are connected with the cooling system; a driving device for the trolley of the moving door. It is not only convenient for disassembly and maintenance, but also can greatly reduce the damage rate of equipment, thereby effectively improving production efficiency.

Description

technical field [0001] The invention relates to a movable door device of a large-scale electron beam cooling hearth furnace. Background technique [0002] Electron beam cold bed smelting is a metallurgical technology that combines electron beams with a cold hearth and smelts under high vacuum. The high-current electron beam of the electron gun is mainly used as the melting heat source, and the water-cooled copper crucible is used as the cooling bed, and the kinetic energy of high-speed electrons is converted into heat energy to melt, refine and cast the metal into ingots. Its working principle is to heat the cathode (tantalum or tungsten wire) in a high vacuum environment, and the cathode will emit a large number of thermal electrons. At this time, if a large potential difference is maintained between the cathode and the anode, the electrons will be accelerated under the action of the electric field. Electrical energy is converted into kinetic energy of electrons. Electric...

AI Technical Summary

Problems solved by technology

At present, it is inconvenient to disassemble the water-cooled copper crucible of most electron beam cooling bed furnaces, and because the chute is relatively close to the crucible when feeding, during the melting process, the high-temperature solution in the crucible will splash out and damage the feeding chute, causing users unnecessary loss

Have again: the cooling equipment that the equipment in the past is equipped with is more complex (each faucet on the furnace door is connected with the cooling system, causes many metal hose connections in the furnace to criss-cross), and the connection of too many faucets and flexible pipes not only takes up space, Waste of materials will also bring a lot of trouble to maintenance

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