Powder lime calcining process and system
US8834819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2010 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Oct 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/40
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A powder lime calcining process comprises: transporting fine granules of limestones having a water content less than 4%, and a granule size less than 15 mm, from a raw material storing bin to a small material bin, transporting the materials from the small material bin into an airflow pipe by a belt conveyer, heating and drying the materials, sieving the materials by a sieving device, transporting granules into a cyclone cylinder deduster and a clothbag deduster in turn by airflow pipes, the fine powders of limestones after dedusted are transported into an intermediate bin; the materials within the intermediate bin are transported to four preheating cyclone cylinders by a pneumatic lift pump and airflow pipes, and are preheated and separated; the materials after separated are transported into three cooling cyclone cylinders for cooling and separating the materials, finally transported into a finished product bin by a finished product transporting system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.