Vehicle-mounted slag-raking machine for converter, and use method

Abstract

The invention relates to a vehicle-mounted slag-raking machine for a converter, and a use method, and belongs to the field of steelmaking slag-raking technology. The vehicle-mounted slag-raking machine for the converter comprises a slag-raking plate, a walking chassis, a rotary central disk, a telescopic working arm, a cab and a power system, wherein the rotary central disk is arranged above the walking chassis, and the power system is arranged at the left side over the rotary central disk; the cab is arranged at the right side over the rotary central disk, and the power system is adjacent to the cab; and one end of the telescopic working arm is connected onto the power system, and the other end of the telescopic working arm is connected with the slag-raking plate. The slag-raking is started in 4minutes to 7minutes after the start of converting, and the slag-raking machine is driven to a converter mouth, and is rightly opposite to the converter; and in a deslagging process, the slag-raking plate is fed into the converter by the telescopic working arm to slag off. The vehicle-mounted slag-raking machine for the converter has the advantages that: the use is flexible and convenient, and one slag-raking machine can be used for multiple converters; most of converter slag can be fast and effectively racked out, the decarburization slag basicity can be effectively improved by raking out a large number of dephosphorization slag, the dephosphorization efficiency can be improved, the lime consumption of the converter can be reduced, and the consumption of iron and steel materials can be reduced.

Description

technical field [0001] The invention belongs to the technical field of steelmaking slag removal, and in particular relates to a vehicle-mounted slag removal machine for a converter and a use method thereof. Background technique [0002] With the development of metallurgical technology and fierce competition in the market, reducing the cost of converter smelting and improving the quality of molten steel in converter smelting have become a means to improve the competitiveness of steel plants. [0003] In recent years, the domestic converter smelting process has been gradually refined, from a single single slag and double slag smelting to a single slag, double slag, double, multi-functional steelmaking method. The double-slag and multi-functional steelmaking methods are generally divided into dephosphorization period and decarburization period. After the dephosphorization period, the slag needs to be poured out—the dephosphorization slag. The main characteristics of the dephosp...

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Problems solved by technology

[0004] Usually, the slag removal method adopted at the end of the dephosphorization period is to pour the slag after the blowing of the converter dephosphorization period. Nearly 30% to 40% of the slag can be removed by the slag pouring, but after the slag discharge reaches a certain proportion, The slag in the furnace cannot continue to be poured out, if the slag continues to be poured out, it is easy to pour out the molten iron

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