The invention belongs to the technical field of iron-making and specifically relates to hot briquetted iron
coke for iron-making and a preparation method thereof. The hot briquetted iron
coke is composed of the following raw materials in percentage by
mass: 10%-30% of
iron ore powder, 60%-80% of pulverized soft
coal and 10%-20% of pulverized blind
coal. The preparation method comprises the following steps: thoroughly and evenly mixing the raw materials to obtain a mixture, heating the mixture in a
heating furnace to 200-350 DEG C, performing instant hot briquetting on the mixture to obtain a hot briquetted iron
coke green ball, putting the hot briquetted iron coke green ball in a
tunnel kiln and performing high-temperature
destructive distillation and
carbonization at a certain temperature increased previously at a certain rate, and then taking out the braised material for cooling, thereby obtaining the hot briquetted iron coke. The prepared hot briquetted iron coke has excellent
compressive strength,
abrasive resistance, reactivity and post-reaction strength; the hot briquetted iron coke is used for
blast furnace iron-making instead of partial coke, and therefore, the adaptability of
blast furnace iron-making to fuels is improved. The preparation method of the hot briquetted iron coke is wide in
raw material source, low in production cost, simple in process flow and free from the use of a binder, and has wide industrial application prospect.