VD (Vacuum Degassing) vacuum furnace shielding cover
2012
The invention discloses a VD (Vacuum Degassing) vacuum furnace shielding cover, which is provided with a shielding cover supporting ring (1) and a refractory material shielding cover (2), wherein the shielding cover supporting ring (1) is made of steel and is annular; the refractory material shielding cover (2) is a frustum-shaped cover with a small top and a large bottom; the upper end face and the side face of the frustum are enclosed into a whole, and the lower end face of the frustum is open; and a lower edge opening of the refractory material shielding cover (2) is supported and connected by the shielding cover supporting ring (1). By using the technical scheme, the shielding cover is divided into two parts; the steel structure is effectively separated from the refractory material under the condition of guaranteeing the function of the shielding cover, so that the workload of maintenance, repair and replacement of the steel structure is reduced, meanwhile, the service life of the refractory material is prolonged, and further, the working efficiency of the VD furnace is increased and the workload and the labor intensity of workers are reduced; and through the rationally designed supporting ring structure, overall refractory material shielding cover, hanging ring and locking device, the furnace cover is more convenient and faster to replace and hang.
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