Drying and conditioning apparatus for tobacco
US4640299A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1984 |
| Grant date | Feb 3, 1987 |
| Priority date | — |
| Expiry date | Dec 21, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for drying and conditioning tobacco leaves, including a heater for heating conditioning air for conditioning tobacco leaves after drying, a temperature controller for controlling the heater so that the temperature of the conditioning air becomes a preset temperature, an atomized water sprayer for cooling the conditioning air fed to the heater, a humidifier for humidifying the conditioning air, and a humidity controller for detecting the moisture content of the tobacco leaves after drying and conditioning and controlling the humidifier so that the moisture content of the tobacco leaves becomes a target moisture content. The humidity controller is so constructed as to control the humidifier on the basis of a wet-bulb temperature. Saving of heat energy can be attained, and because a cooling chamber is not needed, the apparatus can be made compact and it becomes easier to stabilize a target moisture content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.