Patent · US Expired

On-line drying control method for powdered or granular materials and a system to execute the method

US5165180A · kind A · utility

3Cited by
10References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 26, 1990
Grant dateNov 24, 1992
Priority date
Expiry dateJul 26, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05D22/02
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

An on-line drying control method for powdered or granular materials and a related system to execute the method. A fixed amount of materials stored and dried in a drying means such as a hopper dryer is sampled, transported into a moisture measuring/operating station wherein the sampled materials are heated in a heat treatment chamber and the moisture content is calculated by an operation unit. The moisture content is sent to a temperature controller to control the temperature of the drying means so that the obtained moisture content corresponds to a predetermined moisture content while comparing both moisture contents.

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