Device and method for drying scales by using slab continuous casting afterheat

Abstract

The invention provides a device and a method for drying scales by using slab continuous casting afterheat. The device comprises a cantilever crane, a mobile sealing chain plate machine, a material receiving bin and a belt machine, wherein naturally aired wet scales are lifted to the material receiving bin by the cantilever crane; the mobile sealing chain plate machine is arranged above an after-cutting hot feeding roller way; the material receiving bin is positioned above the mobile sealing chain plate machine; after the material receiving bin is fully filled with materials, a first electric gate valve arranged at the lower part of the material receiving bin is started, and the wet scales are unloaded onto the mobile sealing chain plate machine and dried by using the slab afterheat; the belt machine extends from the mobile sealing chain plate machine to a finished product bin by a preset dip angle; the scales dried by the slab afterheat are conveyed into the finished product bin along the belt machine; and after the finished product bin is fully filled with the materials, a second electric gate valve is started, and the dried scales are transferred to a loading system of a metallurgy furnace by a transportation vehicle. The water content of the scales dried by radiation heat of a continuous-cast blank is lower than 1%; and the device is low in investment, low in operation cost and reasonable in process.

Description

technical field [0001] The invention belongs to the technical field of continuous casting technology and comprehensive utilization of resources, and in particular relates to a device and method for drying iron oxide scales by utilizing waste heat of continuous casting of slabs. Background technique [0002] Iron and steel enterprises are the basic industry of the national economy. Under the situation of rapid development of the national economy, steel production has been continuously increasing in recent years. In 2015, my country's crude steel production reached 8.04×10 8 t / a, accounting for 49.5% of global crude steel production. [0003] The iron and steel industry is a large energy consumer. The energy consumption of my country's iron and steel industry accounts for about 15% of the country's total energy consumption. The energy efficiency of iron and steel enterprises in the production process is only 30%. The energy consumption of key large and medium-sized enterprises...

AI Technical Summary

Problems solved by technology

At present, most domestic manufacturers use it directly in the steelmaking converter, but the wet oxide scale contains a certain amount of water, so it cannot be directly put into the furnace. It must be dried after treatment to prevent accidents and affect product quality.

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