A multi-effect rapid baking preheating device for alloy material and its application method

Abstract

The invention relates to an alloy material multi-effect rapid baking and preheating device and a using method thereof. The alloy material multi-effect rapid baking and preheating device comprises a heating bin, a material preparing bin, a plurality of main material bins arranged in pair, a weighing feeding system, a combustion system and an automatic control system, wherein a first smoke discharging pipe and a first alloy material block conveying pipe connected with the material preparing bin are arranged in the heating bin; the first smoke discharging pipe is arranged on the side wall of theupper part of the heating bin; a second alloy material block conveying pipe connected with the main material bins is arranged in the material preparing bin; a second smoke discharge pipe is further arranged in the material preparing bin; the main material bins are further provided with a third flue gas discharge pipe; and the automatic control system is respectively in control connection with thecombustion system, the weighing feeding system, gate plate opening and closing valves arranged on the first alloy material block conveying pipe and the second alloy material block conveying pipe. Thealloy material multi-effect rapid baking and preheating device has the advantages of being reasonable in structural design, high in energy utilization rate, capable of saving fuel, capable of avoidingtemperature loss and accidents, convenient to operate and use, low in maintenance cost and relatively high in automation degree.

Description

technical field [0001] The invention relates to the technical field of smelting, in particular to a multi-effect rapid baking preheating device for alloy materials and a use method thereof. Background technique [0002] Baking of scrap steel / alloy material is one of the necessary processes in steelmaking. By adopting a suitable baking process, the adsorption water and crystallization water of ferroalloy can be removed, and the water brought into molten steel by ferroalloy can be reduced, which is beneficial to reduce the hydrogen content of molten steel. content to meet the requirements of the steelmaking process. The production of steelworks is mainly based on varieties of steel. The traditional hot blast furnace baking device needs to increase the amount of alloy material added during deoxidation and alloying of steel. The following defects: [0003] (1) The traditional hot-air stove-type baking device uses 400°C-600°C hot air to directly bake the main silo, and the heat...

AI Technical Summary

Problems solved by technology

[0003] (1) The traditional hot-blast stove-type baking device uses 400°C-600°C hot air to directly bake the main silo, and the heat exchange efficiency of the flue gas is low

[0004] (2) The vibrating feeder and weighing device of the traditional hot stove type baking device withstand high temperature, and the equipment material requirements are high.

[0005] (3) The exhaust gas temperature of the traditional hot stove type baking device is high, and the requirements for the follow-up flue gas dust removal device are high, and a large amount of flue gas heat is lost

[0006] (4) The traditional hot stove type baking device needs a high-power high-temperature blower for flue gas transmission

[0007] The present invention is proposed based on this research background, and aims to provide a rapid baking and preheating device for alloy materials to solve the defects of temperature loss, energy loss, and molten steel quality that cannot be guaranteed in the production process of steelmaking plants.

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