The invention discloses a horizontal
continuous casting crystallizer of a
cast iron and a preparing method of
cast iron proximate matter. The crystallizer comprises a crystallizer body; a collector
nozzle type isolation ring is arranged at the front end of a high-purity
graphite casting mold of the crystallizer body; according to the horizontal
continuous casting crystallizer of the
cast iron, the collector
nozzle type isolation ring is arranged at the front end of the high-purity
graphite casting mold, the blocking effect of the collector
nozzle type isolation ring is used for forcing molten iron not to enter the high-purity
graphite casting mold in a laminar flow manner, the molten iron must enter the high-purity graphite
casting mold in a forced laminator flow manner, the high-speed washing effect generated by turbulent fluid flowing of the molten iron is sufficiently utilized, the molten iron is pushed backwards before being solidified, and the molten iron enters a forced cooling area of a water-cooled iron sleeve of the crystallizer and then is crystallized and solidified; and the surface of the cast iron
proximate matter produced through the crystallizer is smooth in surface, the phenomenon of scar
skin discharging is prevented from appearing, the structure is compact and uniform,
hardness distribution is uniform, the
mechanical property is improved to a certain degree, the
cutting machining performance is good, the
machining allowance is small, and the production cost is reduced.