Treatment process of falling slag under furnace during converter smelting

Abstract

The invention discloses a technology for processing slag falling below a rotary furnace in the smelting process of the furnace. The technology comprises the following steps: (1) remotely controlling a slag removing vehicle to remove and collect the slag in a first position in a furnace pit below the rotary furnace without stopping the rotary furnace; (2) receiving the slag in a second position outside the furnace by a transport vehicle, and transferring the slag in the slag removing vehicle to a hopper of the transport vehicle; (3) transporting the hopper to a slag processing field by the transport vehicle, and in a third position for slag processing, spraying water to the hopper and soaking the slag; (4) after cooling the slag, dumping the hopper by a dumping device and pouring out the slag; and (5) returning the transport vehicle to the second position and continuously using the hopper. With the technology, the slag can be removed without stopping the rotary furnace, the removed slag are processed in an environment-friendly manner, normal steelmaking production is ensured, and the clearing processing of the slag of the rotary furnace is realized.

Description

Technical field [0001] The invention belongs to the field of iron and steel metallurgy, and specifically relates to a process for treating falling slag in a converter smelting process. Background technique [0002] The converter is an important equipment in steelmaking production. During the production process of the converter, slag will be splashed from the furnace mouth at any time, and slag leaked from the converter slag dumping process may fall into the pit. The role of the converter pit is to collect the slag. To prevent steel leakage in converter accidents, a certain volume must be guaranteed under normal use of the furnace pit. If it cannot be cleaned in time, it will inevitably bring safety hazards to the converter production. If the slag in the furnace pit exceeds the track plane, it will block the ladle trolley and slag bed platform. The car cannot be driven under the furnace, even if it is forced to the furnace, it is unavoidable. The large slag scrapes off the ladle n...

AI Technical Summary

Problems solved by technology

[0002] The converter is an important equipment in steelmaking production. During the production process of the converter, the slag will be sprayed from the furnace mouth at any time, and the slag leaked during the slag dumping process of the converter will fall into the furnace pit, and the function of the converter pit is to collect the slag. To prevent steel leakage due to converter accidents, the furnace pit must have a certain volume under normal use. If it cannot be cleaned in time, it will inevitably bring safety hazards to the converter production. If the slag in the furnace pit exceeds the track plane, it will block the ladle trolley and slag ladle platform The car cannot be driven under the furnace, even if it is forced to drive under the furnace, it cannot be avoided. The large slag scrapes off the ladle nozzle slide plate. After the slide plate is scraped off, the ladle tap hole is opened. Leakage will cause steel leakage accident

The cleaning of the slag under the converter is usually carried out when the furnace is shut down. The cleaned slag is transported to the slag treatment. During the loading and dumping process, the dust is huge, which is not conducive to the environmental protection requirements of steelmaking.

Some steel mills use remote control crawler loaders for cleaning, but the effect is not very satisfactory. Remote control crawler loaders not only consume a lot of fuel, but also are very inconvenient to operate the equipment

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