Dry Coal Processing Plant 3D Model (Polygon mesh 3D model) is available on CGTrader for $200. Original author: batkam3. Specs: 1989715 polys, 1261111 verts.
OBJ (OBJ, filesize: 137 MB), MAX (Autodesk 3ds Max, filesize: 80.4 MB), FBX (Autodesk FBX, filesize: 95 MB)