FIELD: materials handling; transportation of loose materials. SUBSTANCE: device for pneumatic transportation of powder material liquefied on porous base consists of working chamber with porous base 19, 21 divided into two parts. First part is loaded under feed column 15 on horizontal below level of second part located under balancing column 16. Each part is supplied with independent amounts of material. Difference in pressure in each part 18, 20 is measured. This difference increases with choking of porous base 19 placed under feed column and makes it possible to unseal base 19 if difference exceeds definite value. Device can be used for transportation of any products in liquefied layer (aluminium, lime, cement, metal powders, plastics, food products). EFFECT: enlarged operating capabilities. 5 cl, 5 dwg
