NEW PROCESS AND SYSTEM FOR CONVEYING BED SMELTING OF REDUCING GAS PREPARED BY USING MEDIUM/LOW-RANK COAL GASIFICATION

摘要

An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore powder in a conveying bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; performing desulfurization and decarburization processing on the reduction exhaust to obtain a purified reduction exhaust; and introducing the purified reduction exhaust into the conveying bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and improving the reduction efficiency of the ore powder.