This invention provides a hydrophilic-lipophilic balanced
coal-water
slurry additive, its preparation method, and its application. By weight, the raw materials include: 18-28 parts of gemini-type polyether-modified
naphthalene sulfonate, 4-10 parts of zwitterionic nano-
hybrid stabilizer, 12-20 parts of
sodium lignosulfonate, 6-12 parts of polycarboxylate-based dispersant, 1.5-4 parts of biopolysaccharide
rheology modifier, 10-16 parts of low-temperature flowability improver, 2-4 parts of pH adjuster, 2-5 parts of chelating agent, and 35-50 parts of deionized water. The hydrophilic-lipophilic balanced
coal-water
slurry additive provided by this invention can form an adsorption layer on the surface of
coal particles, achieving synergistic dispersion through electrostatic repulsion and steric hindrance. This improves the low-temperature flowability, long-term storage stability, and coal type adaptability of the coal-water
slurry, regulates
thixotropy, chelates interfering ions, optimizes the effects of each component, and ensures a stable and homogeneous
system.