Process for hydraulic transport of bulk material
US6024111A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Dec 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2506
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In a process for hydraulic transport of bulk material from a receiving site to a remote location via a conveying pipeline, a dispersion is prepared from bulk material and a liquid, and conducted into a feed pump which has a pressure side in communication with the entry into conveying pipeline, whereby a fraction of the liquid is withdrawn at a location between the pump and the entry into the conveying pipeline. Suitably, either the volume flow of the withdrawn fraction of the liquid represents a manipulated variable which is changed in dependence on a controlled variable constituted by the volume flow through or pressure in the conveying pipeline, or/and the dispersion is produced upstream of the feed pump from a controllable bulk material stream and controllable liquid amount, whereby the amount of liquid may also include at least a fraction of the liquid withdrawn from the pressure side of the feed pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.