Mixing and conveying facility for dry building materials from a supply silo
US10427323B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Feb 26, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a mixing and conveying system for dry mortar materials. The dry mortar materials can be obtained from a storage silo (1) through an openable closure panel (3). A pipe (17), in which a drivable screw conveyor (4) is mounted, is arranged under the closure panel (3). The pipe (17) leads into a mixing and buffer container (18), in which a coil (20) is rotatably mounted on a central axis (19). The mixing and buffer container (18) has a volume which equals at least 1.5-times the minute capacity of the pump-screw conveyor (14). It is thus ensured that the dry mortar material is mixed therein with the added water for at least 90 seconds or longer. The mixing and buffer container (18) leads into a pipe (15) at the bottom having a pump-screw conveyor (14) which conveys the mixed mortar into a hose (5). The pump-screw conveyor (14) can be allowed to run backward. The coil (20) runs continually such that the mortar is constantly agitated to prevent setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.