Apparatus for the production of colloidal mixtures
US4464055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1981 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Jun 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for producing colloidal mixtures, especially water-cement mixtures with or without further solid additions, comprising the steps of feeding the material for forming the colloidal mixture into a container, stirring the material fed into the container by a blade stirrer driven by a motor at a circumferential speed at the outer diameter of the blade stirrer of at least 500 and preferably 1,500 meters per minute, continuously measuring the variations in the energy take-up of the motor, and stopping stirring of the material when the continuously observed energy take-up indicates a sudden transition from a fluctuating to a substantially steady course; and an apparatus for carrying out this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.