Coal-to-gas compact-type process structure for COREX furnace

Abstract

The invention belongs to a coal-to-gas process structure for a COREX furnace and especially relates to a coal-to-gas compact-type process structure for a COREX furnace. A rectangular support frame isdivided into a first main frame and a second main frame through a central column. A bag-type dust remover is arranged on an upper support platform of the first main frame. A raw coal bunker is installed on a middle-upper support platform, and a discharge port of the raw coal bunker is connected to a feeder positioned on a middle-lower support platform. A discharge port of the feeder is connected to a coal pulverizer positioned on a lower support platform. A pocket-type powder collector is installed on an upper support platform of the second main frame, and an outlet of the pocket-type powder collector is connected to a vibrating screen positioned on a middle-upper support platform. A discharge end of the vibrating screen is connected to a pulverized coal bunker installed through a middle-lower support platform. The pulverized coal bunker is connected through a conveyer device to a spitfire pot positioned on a lower support platform. A powder feeding pipe of the coal pulverizer is connected to the pocket-type powder collector. The structure of the invention is compact and will not occupy large space. Through the coal-to-gas device for conveying coal dust with appropriate granularityto a vapourizing furnace of the COREX furnace, the purpose of generating reducing gas is achieved.

Description

technical field [0001] The invention belongs to the Ouyeel furnace coal-to-gas process structure, in particular to a compact Ouyeel furnace coal-to-gas process structure. Background technique [0002] As the most advanced COREX in the world, it has its own technological characteristics, so the COREX furnace was renamed Ouyeel furnace. Combined with the fuel resources in Xinjiang, the Ouyeel furnace was smelted with all-coke at the initial stage. According to the current full-coke fuel structure, there was insufficient reducing gas, and the stable production of the Ouyeel furnace could not be realized. Since Ouyeel Furnace does not have special coal-to-gas equipment, although a certain amount of granular coal is added from the coke distributor of the gasifier, the gas volume has increased and the process production has been stabilized. Oxygen that cannot be injected into the vault oxygen nozzle burns in the vault, and is carried out by the gas when the cracking and combustio...

AI Technical Summary

Problems solved by technology

Combined with the fuel resources in Xinjiang, the Ouyeel furnace was fully coke smelted at the beginning of the furnace. According to the current full coke fuel structure, the reduction gas is insufficient, and the stable production of the Ouyeel furnace cannot be realized.

Since Ouyeel Furnace does not have special coal-to-gas equipment, although a certain amount of granular coal is added from the coke distributor of the gasifier, the gas volume has increased and the process production has been stabilized. Oxygen that cannot be injected into the dome oxygen nozzle burns in the dome, and is carried out by the gas after cracking and burning in the dome area. At the same time, the remaining dust enters the fixed bed with the charge and deteriorates the air permeability and liquid permeability of the lower charge.

Images