Quenching tower salt ash softening agent in rotary kiln incineration process and application method

The invention relates to a quenching tower salt ash softening agent in a rotary kiln incineration process and an application method of the quenching tower salt ash softening agent in the rotary kiln incineration process. The agent comprises the following raw materials in percentage by weight: 10-50% of an amino acid polymer, 1-50% of organic carboxylic acid or salt thereof, 1-50% of organic phosphoric acid or salt thereof, 1-10% of an anti-caking substance, 1-5% of a polyhydroxy compound containing a dienol structure and 1-10% of an acid neutralizer, the raw materials are mixed according to the proportion and then water is added to prepare a solution with the mass concentration of 30%-40% to obtain the quench tower salt ash softening agent, and the pH value of the quench tower salt ash softening agent is larger than or equal to 7. The quenching tower salt ash softening agent can prevent the problem that high-temperature salt ash at the lower part of the wall of the quench tower is scaled and salt-deposited du