Cryopulverizing packed bed control system
US4222527A · kind A · utility
14Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1979 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Feb 22, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A control system for optimizing the flow of a cryogenic refrigerant into the precooler and mill of a cryopulverizing system including means responsive to a change in the discharge temperature in the mill for introducing refrigerant into the mill in direct proportion to such temperature change and means responsive to the change in discharge temperature in the mill for introducing refrigerant into the precooler at a linear rate proportional to the product of the material feed rate and the change in discharge temperature and inversely proportional to the residence time of the feed material in the precooler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.