Used vertical stainless steel silos for powders with total volume about 6000 l. Tank has internal diameter 180 cm x length of straight side of wall 144 cm. Silos has conical bottom, equipped with vibrating discharge outlet driven by el vibrating motor…. and pneumatically operated valve. Diameter of discharge 200 mm. Silos had been mounted on cylindrical support. Feeding inlet via top located connection to pneumatic conveyer. Silos has side wall rectangular connection for dust filter with dimensions 570 mm x 490 mm. There is a inspection manway with bolted lid with diameter 500 mm. Last time used in food industry.