NEW PROCESS AND SYSTEM FOR MOBILE 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 pellets in a mobile 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 mobile bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and obviously improving the reduction efficiency of the ore powder.