Blast furnace top chute distributing device

Abstract

The present invention discloses a furnace top chute distributor for a blast furnace, including an airtight case, a choke, an upper slewing bearing, a rotating sleeve, a chute, a universal frame, a lower slewing bearing, a dial wheel assembly, a cylinder and a horizontal driving apparatus for driving the upper slewing bearing to rotate. The choke extends through a top cover provided on top of the airtight case and into the airtight case. An inner ring of the upper slewing bearing is connected with the top cover. The rotating sleeve on which a lug is provided is connected with an outer ring of the upper slewing bearing, and the chute is hung within the rotating sleeve via the lug. The lug is connected to one end of a crank, while the other end of the crank is positioned within a slideway of the universal frame. An inner ring of the lower slewing bearing is connected with the universal frame. One end of the dial wheel assembly is connected with the inner ring of the lower slewing bearing, while the other end thereof is positioned within a runner of the rotating sleeve. The cylinder is used for drawing the lower slewing bearing to move up and down. The furnace top chute distributor for a blast furnace according to the present invention has advantages, such as reasonable structure, long lifetime, the shortest gearing chain, more stable operation, and no lateral force to the guide rail.

Description

technical field [0001] The invention relates to a furnace top charging device for a smelting blast furnace, in particular to a blast furnace top chute distributor. Background technique [0002] Blast furnace top charging equipment is the key equipment for blast furnace ironmaking. Whether the equipment can meet the technological requirements directly restricts the output of blast furnace. Since blast furnace ironmaking, blast furnace top charging equipment has experienced the following three generations of development. The first generation is bell-type furnace top charging equipment; the second generation is furnace top charging equipment with material bell and movable throat baffle; the third generation is furnace top charging equipment without material bell. With the development and progress of the iron and steel industry, in the past two decades, especially in the past ten years, the blast furnace roof charging equipment has gradually replaced the bell-type furnace roof ...

AI Technical Summary

Problems solved by technology

The distribution device of the planetary differential transmission has a complex structure, high equipment price, maintenance and repair costs, difficult equipment manufacturing, poor equipment process performance and high temperature resistance performance of the furnace roof; single oil cylinder and steel wire rope combined transmission, servo motor and steel wire rope combined transmission The wire rope system of the device is complex, and the wire rope is prone to fatigue and fracture. The chute is lifted by the counterweight of the translation support ring. The structure has certain limitations, and it is not suitable for large blast furnaces. The lever-driven distributor has two lifting points and four lifting points. , regardless of the form, there are problems of mechanical over-constraint and asynchronous processing and assembly, resulting in a short life of the distributor and failing to meet the requirements of a generation of furnace life

Images