METHOD OF AND DEVICE FOR PNEUMATIC TRANSPORTATION OF LOOSE MATERIALS Russian patent published in 2008 - IPC B65G53/40 B65G53/52 

FIELD: non-ferrous metallurgy.

SUBSTANCE: invention relates to equipment for pneumatic transportation of loose materials in non-ferrous metallurgy, particularly, alumina and it can be used in other industries. According to proposed method pneumatic transportation of loose materials is provided in dense layer built by means of pneumochamber pumps. Method includes delivery of additional air into transported material through aerating pipe placed inside transportation pipeline. Additional aeration air is supplied on curvilinear sections of aerating pipe at turning of transportation pipeline in horizontal plane in seven cross sections of said pipe and in 2-5 points of said sections, at turning of transportation pipeline in vertical plane with output to its vertical in ten cross sections and in 2-4 points of said sections, and at turning of transportation pipeline in vertical plane with output to horizontal, in seven cross sections and 2-6 points of said sections. Holes to deliver additional air are made in left-hand or right-hand lower quarter of said pipe to the left or right, accordingly. At arrangement of curvilinear section of transportation pipeline in vertical plane with output to vertical and to horizontal, holes are made in aerating pipe with arrangement symmetrically relative to vertical axis of corresponding cross sections of said pipe.

EFFECT: reduced velocity of transportation of loose materials with reduction of grinding of transported material, reduced consumption of compressed air for transportation, improved efficiency of transportation process.

4 cl, 3 tbl, 32 dwg