Process and apparatus for drying and conditioning chicken manure or similar pasty substances
US4909825A · kind A · utility
Inventor
Key dates
| Filing date | Nov 26, 1986 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Nov 26, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a method and device for drying and conditioning poultry manure or similar pasty materials in the form of particles, selective micro-organisms are, in a microbiological phase, fixed onto stable moulded carrier element, added to the past material to be treated, optimum climatic conditions being generated with air conditioned for the activity of the micro-organisms. Released heat as well as water vapor are evacuated. In the case of a temperature drop, the microbiological phase is substituted by an air stream drying which is terminated when the desired dessication degree is obtained. The device comprises a closed cylindrical tank (1) wherein there is arranged a suspended mounting which may vibrate vertically and which is comprised of two cylindrical coaxial air-tight mantels (14,15) between which are distributed the carrier elements for the selective microorganisms. A conduit (9) and an air distribution space (13) are provided for the air supply; the discharge of air is effected through the inner cylindrical mantel (15) and an exhaust pipe starting from the bottom of the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.