Heat energy recovery, gasification and metallurgy integrated device

Abstract

The invention discloses a heat energy recovery, gasification and metallurgy integrated device, and relates to the technical field of gasification and metallurgy process devices. The heat energy recovery, gasification and metallurgy integrated device comprises a gasification furnace and a waste boiler, the waste boiler is arranged on the outer portion of the gasification furnace, the gasification furnace communicates with the waste boiler through a first high-temperature-resistant pipeline, the gasification furnace comprises a shell and a furnace cavity, a pulverized coal burner is arranged at the top of the shell, and a batching burner is arranged on the upper middle portion of the shell. When the gasification furnace is used for gasification production, the batching burner is a slurry burner, when the gasification furnace is used for ironmaking production, the batching burner is adjusted to be an iron ore powder nozzle, a reaction chamber is arranged on the upper portion of the furnace chamber, and a chilling chamber is arranged on the lower portion of the furnace chamber. The gasification device combines the advantages of two gasification processes of a dry process and a wet process and has the advantages of being low in oxygen consumption, high in H2 proportion, high in effective gas content, environment-friendly and the like, when used for metallurgical production, the device directly reduces iron ore powder in the furnace, the iron ore powder pellet and coke production links necessary for traditional ironmaking are completely removed, and energy consumption and the pollution are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of gasification and metallurgy process devices, in particular to a thermal energy recovery gasification and metallurgy integrated device. Background technique [0002] The most advanced gasification technology at present is entrained bed gasification, which is divided into dry method and wet method, which are called dry pulverized coal gasification technology and coal water slurry gasification technology respectively. [0003] Dry pulverized coal gasification is to grind coal and other raw materials into extremely fine powder, and then spray it into the gasification furnace through the burner at a certain pressure. Rapid reaction produces CO and H 2 Such as crude gas, coal-water slurry gasification is to grind coal and other raw materials into powder, prepare coal-water slurry with water, and then spray it into the gasifier through the burner at a certain pressure. At a high temperature above 1200 ° C, Rap...

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Problems solved by technology

In this process, in addition to the slow and insufficient reaction in the ironmaking blast furnace, resulting in low efficiency and serious pollution in the prod...

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