Patent · US Expired

Method of automatically controlling a dust-collecting plant

US4521226A · kind A · utility

9Cited by

4References

6Claims

0Family size

Assignee

Metallgesellschaft AG · DE

Inventors

Franz Alig · Goldbach, DE
Horst Hemmerling · Kronberg, DE
Franz Neulinger · Langen (Hessen), DE

Key dates

Filing date	Jan 6, 1984
Grant date	Jun 4, 1985
Priority date	—
Expiry date	Jan 6, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21C5/38
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

For a dust-collecting plant, in which a plurality of gas streams are sucked from spaced apart dust sources and are delivered in a manifold to a dust-collecting unit and the gas is delivered by a controllable exhaust fan to an exhaust gas chimney, a method is provided wherein the automatic control and the operation of the plant are improved whereas the power requirement is minimized. A feedback control system having an individually adjustable desired value r.sub.i is associated with each gas source. An overriding feedback control system is provided for controlling the exhaust fan. The pressure drop R to be maintained by the exhaust fan is changed in dependence on the position of the final control elements associated with the several dust sources.

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