Patent · US Expired

Installation for transporting fine-grained material

US4381897A · kind A · utility

23Cited by

4References

5Claims

0Family size

Assignee

Krupp Polysius AG · DE

Inventors

Carlos Arbeletche · Beckum, DE
Ingo Boelcke · Hamm, DE
Peter Poehlmann · Munster, DE
Klaus Kirchner · Nidderau, DE

Key dates

Filing date	Mar 29, 1982
Grant date	May 3, 1983
Priority date	—
Expiry date	Mar 29, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21B5/003
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An installation for transporting fine-grained material to a consumer using two alternately filled and emptied pneumatic pressure vessels (3, 4) together with an outlet valve (12, 12') and a control nozzle (15, 15') in the material discharge pipe of each of the two pressure vessels. The control nozzles (15, 15') are connected to an air distributor (18) through which the control nozzle receives a reduced amount of compressed air when the material discharge pipe is shut off. With an installation such as this, a continuous and exactly metered delivery of fine-grained material is obtained without any mechanically moved parts in the delivery path and with a low rate of flow in the delivery pipe.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.