Conducted　a　numerical　simulation　to　model　a　novel　swirl　precalciner,　investigating　how　altering　in　the　position　of　the　raw　meal　inlet　affects　the　internal　gas-flow,　temperature　field,　and　component　concentration　field　within　the　precalciner.　Applied　the　realizable　k-Ε　two-equation　turbulent　model　to　the　continuous　phase.　For　the　particle　phase　(pulverized　coal),　employed　the　discrete　particle　model　and　the　discrete　random　walk　model.　Simulated　the　combustion　of　pulverized　coal　and　the　decomposition　of　calcium　carbonate　by　using　the　species　transport　model　combined　with　the　finite-rate/eddy-dissipation　model.　Modeled　the　generation　of　NOx　using　a　NOx　model.　The　results　show　that,　in　comparison　to　the　condition　with　four　raw　meal　inlets,　the　six　raw　meal　inlets　condition　has　a　better　coupling　of　pulverized　coal　combustion　and　raw　meal　decomposition.　The　decomposition　rate　of　raw　meal　has　seen　a　slight　improvement,　and　there　is　a　significant　improvement　in　the　occurrence　of　localized　high　temperatures　within　the　precalciner,　resulting　in　a　reduction　of　the　outlet　NOx　concentration　from　1251　ppm　to　225　ppm.　2024　Published　by　the　Vinča　Institute　of　Nuclear　Sciences,　Belgrade,　Serbia.　This　is　an　open　access　article　distributed　under　the　CC　BY-NC-ND　4.0　terms　and　conditions.