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

Abstract

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 due to the fact that high-salinity wastewater generated after incineration of hazardous wastes is sprayed back to the quench tower and is easy to block a pipeline, and is convenient and simple to use and good in effect.

Description

technical field

[0001] The invention relates to the technical field of water treatment, in particular to a quenching tower salt ash softener in a rotary kiln incineration process and an application method. Background technique

[0002] There are many types of solid waste and hazardous waste, and there are many classification methods for solid waste. According to its composition, it can be divided into organic waste and inorganic waste; according to its hazard status, it can be divided into hazardous waste (cyanide tailings, mercury-containing waste, etc., see Hazardous Waste Inventory), hazardous waste (referring to corrosion, corruption, highly toxic, infectious, spontaneous combustion, sharp thorns, radioactive waste, etc.) and general waste; according to its form, it can be divided into solid waste (block, granular, powder), semi-solid waste (waste engine oil, etc.) and unconventional solid waste (solid waste containing gaseous or solid substances, such as waste oil drums...

Images