Heat-insulating and burning-preventing protective device for furnace-front tapping of submerged arc furnace

The utility model relates to a submerged arc furnace stokehole tapping heat insulation burning prevention protective device which comprises two stand columns, an upper protective plate and a lower protective plate are fixedly installed between the two stand columns respectively, a connecting rod is fixedly installed at the top ends of the two stand columns, and a protective gate is fixedly installed between the two stand columns. And the protective gate is fixedly mounted between the upper protective plate and the lower protective plate. And a protective middle door is fixedly mounted on the surface of the protective front door. And a small protective door is fixedly mounted on the surface of the middle protective door. And an anti-falling device is fixedly mounted on the surface of the upper protective plate. The device has the advantages of being reasonable in structural design, novel in conception, low in production and manufacturing cost, convenient and fast to operate, high in safety performance and capa