This team has been deeply engaged in the soda ash industry for over 60 years (since 1957), ranking first in China for design capability in this field. The technical system comprehensively covers three major process routes: ammonia-soda process, combined alkali process, and natural soda process. Independently developed core technologies include: salt-alkali-calcium joint production process—injecting soda manufacturing waste liquid and residue into underground salt caverns for salt dissolution, desulfurization, and solid filling, which is a world first; horizontal belt vacuum filtration and energy-saving technology for soda ash—recognized by authoritative evaluation as reaching international advanced level and included in the National Key Energy-Saving and Low-Carbon Technology Promotion Catalog; as well as key technologies such as shift gas soda making, pressurized carbonation, solid-phase hydration重型碱, fluidized bed drying, self-returning alkali steam calciner, secondary jet ammonia absorption, and whole-system mother liquor balance interlock control. The team has obtained 7 invention patents and utility model patents, along with 9 industry-recognized proprietary technologies. Past performance encompasses 60 large-scale soda ash projects (based on complete project list statistics), with capacities ranging from 80,000 tons/year to 1,200,000 tons/year, including 3 overseas projects in Iran (20,000 tons/year, 20,000 tons/year, and 80,000 tons/year renovation respectively). Engineering design achievements have repeatedly won national and provincial-level Outstanding Engineering Design Awards (with total awards exceeding 40).