System for baking alloy materials processed by rotary cloth revolving furnace and operation method of system

Abstract

The invention relates to an alloy material furnace and particularly relates to a system for baking an alloy materials processed by a rotary cloth revolving furnace and an operation method of the system. The system comprises a loading device, a baking furnace, combustors, an air heat exchanger, a discharging tank and a smoke exhausting device, wherein the loading device comprises a charging tank, aconveying belt, a primary preheating bin and a chute type material distributor; the baking furnace is of an annular rotation bottom type and is used for heating an upper cavity and a lower cavity, and an annular chamber is internally divided into a preheating section, a heating section and uniform heating section; the combustors are mounted in the upper cavity and the lower cavity of the baking furnace, the combustor in the upper cavity is used for tangentially heating downwards, and the combustor in the lower cavity is used for tangentially heating upwards; the air heat exchanger and the chute type material distributor are mounted above the baking furnace, and the smoke exhausting device is connected with air heat exchanger, penetrates through the primary preheating bin and stretches outof the upper end of the primary preheating bin; and the discharging tank is arranged below the baking furnace. The alloy materials are uniformly distributed and heated, so that the heating effect isgood; the utilization rate of energy sources is high, the energy sources are saved, and the environmental protection is promoted; and the alloy material furnace is compact in structure and occupies asmall area.

Description

technical field [0001] The invention relates to an alloy material baking furnace, in particular to a system and an operation method of an alloy material baking furnace after a rotating material-distributing converter. Background technique [0002] Converter steelmaking uses alloying materials for alloying. Alloying materials are necessary raw materials for alloying molten steel in converter steelmaking. The amount of alloying materials added varies from several hundred kilograms to several tons depending on the type of steel being smelted. The alloy material at normal temperature will absorb a lot of heat when it is added to the molten steel above 1600 °C, resulting in a drop in the temperature of the molten steel. In order to ensure the castability of the molten steel, the converter is forced to increase the tapping temperature. Raising the tapping temperature not only deteriorates the quality of molten steel, but also reduces the service life of converter refractory materi...

AI Technical Summary

Problems solved by technology

But this kind of baking system has the following disadvantages: first, it occupies a large area; second, the hot gas source of the combustion chamber can only enter the alloy baking furnace through the gas channel, which is easy to cause heat loss

The disadvantages of this kind of baking and feeding equipment are: the production of the converter requires a variety of alloys, and each alloy requires a silo. The alloy silo is directly arranged behind the converter and occupies a large area. The old factory area is generally small and small. This structure The layout cannot be realized. In addition, this kind of baking and feeding equipment requires two alloy material baking furnaces, which not only occupies a large area, but also costs high equipment and maintenance.

The shortcoming of this kind of baking system is that the burner is placed on the external hot air stove, and only the hot air sent to the baking silo is used to heat the alloy material, so the utilization rate of energy is low

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