Preparation method of binding agent used for manufacturing blast furnace tapping skimmer

The invention discloses a preparation method of a binding agent used for manufacturing a blast furnace tapping skimmer, and relates to the technical field of binding agents for blast furnace skimmers. The preparation method comprises the following steps: (1) 75-90 parts of asphalt, 20-30 parts of organosilicon resin and 14-18 parts of phenolic resin are weighed and are sequentially added into a reaction kettle, such that a mixture A is prepared; (2) 5-8 parts of melamine formaldehyde resin, 2-4 parts of neoprene and 1-2 parts of benzoic acid are weighed and well mixed, such that a mixture B is obtained; (3) the mixture B is added into the mixture A, such that a mixture C is obtained; and (4) 4-7 parts of a composite additive is weighed and added into the mixture C, such that the binding agent is obtained. According to the binding agent provided by the invention, with the creative component formula, the service life of a skimmer manufactured with the binding agent is greatly improved. Without repairing, the service life of the skimmer reaches approximately 30 days. No feeding is needed during an application process.