Environment-friendly iron runner ramming material as well as preparation method and construction method thereof

The invention discloses an environment-friendly iron runner ramming material as well as a preparation method and a construction method thereof. The iron runner ramming material comprises aggregate powder, polyvinyl alcohol fibers and silica sol, wherein the bone meal comprises the following components in percentage by mass: 52-60% of waste aluminum oxide ceramic particles, 5-9% of waste silicon carbide sagger particles, 10-14% of waste aluminum oxide ceramic powder, 3-7% of waste silicon carbide dust extraction powder, 5-9% of waste silicon carbide sagger powder, 1-2% of waste polycrystalline silicon slice powder, 8-12% of waste brown aluminum oxide dust extraction powder and 1-3% of waste electrode powder. When the iron runner is used on site, a layer of silica sol is sprayed after a branch runner or a slag runner is cleaned up, then an iron runner ramming material is put into the runner to be rammed, liquid high-temperature slag is scooped from a main runner and poured on the ramming material which is compa