Torpedo tank car molten iron opening protection cover device

Abstract

The invention relates to the field of ironmaking engineering, in particular to a torpedo tank car molten iron opening protection cover device. The device comprises a sliding conveying mechanism (1), a protection cover (2), a counter weight mechanism (3) and an opening and closing mechanism (4). The protection cover (2) and the counter weight mechanism (3) are connected with two annular sliding rails (7) of the sliding conveying mechanism (1) into an integral unit surrounding a torpedo tank car body (30) and rotating in the circumferential direction. Under the action of gravity of a counter weight plate (35), a cover cap (31) is automatically located on a molten iron opening (29). The cover cap (31) is automatically opened and closed through the opening and closing mechanism (4) before and after the torpedo tank car body (30) receives molten iron. When the torpedo tank car body (30) dumps the molten iron in a rotating mode, the cover cap (31) is opened and closed in a following mode. The independently arranged opening and closing mechanism (4) can be shared by multiple torpedo tank car bodies (30). In the molten iron conveying process of the torpedo tank car body (30), the cover cap (31) is in a covering protection state for the molten iron opening (29) so that emission of noxious fume and heat loss of the molten iron can be reduced, and the service life of lining refractory is prolonged. The device has the advantages of being simple in structure, high in automation degree and worth applying and popularizing.

Description

technical field [0001] The invention relates to the field of ironmaking engineering, in particular to a protective cover device for an iron nozzle of a torpedo tank car. Background technique [0002] At present, in domestic iron and steel enterprises, ironworks generally use torpedo tankers to transport molten iron to steelworks for further smelting. In older iron and steel enterprises, the distance between iron and steel plants is generally more than 3 kilometers, and in new iron and steel enterprises, the distance between iron and steel plants is also 1 km. The iron nozzle of the torpedo tank car is open. During the long-distance transportation, the molten iron will lose a lot of heat when it is in direct contact with the atmosphere. Rainwater can directly enter the tank and damage the lining refractory material. Graphite and a large amount of smoke pollute the environment. [0003] There is an existing invention patent with the application number 201310234747.9 titled "...

AI Technical Summary

Problems solved by technology

Although this invention realizes the installation of a protective cover on the iron nozzle of the torpedo tank, the hydraulic cylinder is affected by the high-temperature radiation heat on the surface of the tank body up to 300°C, the hydraulic oil and the sealing material of the cylinder body are prone to aging and deformation, the performance of the equipment is reduced, and the service life is short; The power supply requires vehicle dispatchers to operate at the hot metal receiving and pouring stations of the torpedo tank, and the working environment is harsh; the steel structure frame is installed on the torpedo tank car body, and the original car body structure needs to be modified; the torpedo tank car automatically adds a cover The device is installed in a complete set on each torpedo tank car, and the cost is high

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