Inhibitor for high-calcium fluorite mine and flotation method

The invention discloses a high-calcium fluorite mine inhibitor and a flotation method.The high-calcium fluorite mine inhibitor comprises modified water glass and a calcium carbonate strengthening inhibitor, the modified water glass is a complex of organic acid and water glass, and the organic acid is 3-carboxyl-3-hydroxyglutaric acid, 2-hydroxysuccinic acid, 2, 3, 4-trimethyl-1, 3-pentanedioic acid, 2, 3, 4-trimethyl-1, 3-pentanedioic acid or 2, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3-pentanedioic acid. The solvent is one or more of 1, 3-dihydroxysuccinic acid; the calcium carbonate strengthening inhibitor is one or two of sulfonated asphalt powder or sulfonated phenolic resin, and the structural formula of the sulfonated phenolic resin is shown as a formula (III); wherein n is an integer. According to the method, a new flotation reagent system and a new technological process are combined, low-cost, efficient and accurate separation of fluorite and calcite can be achieved, and high-quality flu