초록 ▼

The invention provides a method and system for establishing a desired atmosphere for perishable or atmosphere-sensitive goods during their storage and/or transportation. A system in one embodiment includes a base cap for receiving goods; a covering which surrounds the goods on the base cap and formi

The invention provides a method and system for establishing a desired atmosphere for perishable or atmosphere-sensitive goods during their storage and/or transportation. A system in one embodiment includes a base cap for receiving goods; a covering which surrounds the goods on the base cap and forming a sealed enclosure around the goods; a valve extending outwardly from a surface of the base cap and a second valve extending outwardly from a surface of the covering.

대표청구항 ▼

The invention provides a method and system for establishing a desired atmosphere for perishable or atmosphere-sensitive goods during their storage and/or transportation. A system in one embodiment includes a base cap for receiving goods; a covering which surrounds the goods on the base cap and formi

The invention provides a method and system for establishing a desired atmosphere for perishable or atmosphere-sensitive goods during their storage and/or transportation. A system in one embodiment includes a base cap for receiving goods; a covering which surrounds the goods on the base cap and forming a sealed enclosure around the goods; a valve extending outwardly from a surface of the base cap and a second valve extending outwardly from a surface of the covering. ted centrally above said sluice wheel supplying bulk material substantially axially to said lower gable wall of said sluice wheel. 2. A sluice according to claim 1, wherein said sluice wheel comprises a plurality of at least substantially radial sluice walls including radial inner and outer ends and distributed spaced apart from one another along the circumference of said sluice wheel, said sluice walls abutting sealingly with said radial outer ends against said circumferential wall except at said outlet, and said radial inner ends of said sluice walls are situated at a predetermined distance from the center of said sluice wheel, so that a central free space communicating with said inlet is formed in said sluice wheel. 3. A sluice according to claim 2, wherein said lower gable wall of said sluice wheel is circular and said sluice wheel comprises an upper annular circular gable wall, and said sluice walls extend axially between and are connected to said lower and upper gable walls. 4. A sluice according to claim 3, further comprising a stationary partial cylindrical wall extending in said central space coaxially with said sluice wheel and abutting sealingly against said upper and lower gable walls, wherein said partial cylindrical wall extends past said outlet as seen in the circumferential direction of said sluice wheel. 5. A sluice according to claim 4, wherein the radial outer end of each sluice wall abuts sealingly against said circumferential wall except when said sluice wall passes said outlet during rotation of said sluice wheel. 6. A sluice according to claim 5, wherein said circumferential wall comprises a curved bendable band including an end which is fixed against movement in the longitudinal direction of said band and an opposite end which is movable in the longitudinal direction of said band for adjustment of the radial extension of said band. 7. A sluice according to claim 6, wherein said opposite end of said band is connected to a pre-stretched draw spring for automatic adjustment of the radial extension of said band, so that a satisfactory sealing between said band and the radial outer ends of said sluice walls is achieved during operation. 8. A sluice according to claim 4, wherein said radial inner end of each sluice wall abuts sealingly against said partial cylindrical wall when the partial cylindrical wall is passed by said sluice wall during rotation of said sluice wheel. 9. A sluice according to claim 8, wherein said partial cylindrical wall extends in the circumferential direction of said sluice wheel such that at least one sluice wall seals between said circumferential wall and said partial cylindrical wall at each side of said outlet, as seen in the circumferential direction, independent of the turning position of said sluice wheel. 10. A sluice adapted for discharging bulk material from a cyclone, comprising: a circumferential wall defining a generally cylindrical chamber having an inlet for receiving said bulk material from the cyclone and an outlet extending substantially tangentially to said cylindrical chamber for discharging bulk material therefrom, and a sluice wheel, which is rotatable in said chamber about a vertical axis extending through the center of said sluice wheel for sluicing said bulk material in batches from said inlet through said chamber to said outlet, wherein said inlet is located centrally above said sluice wheel for supplying bulk material substantially axially to said sluice wheel, wherein said sluice wheel comprises a plurality of at least substantially radial sluice walls including radial inner and outer ends and distributed spaced apart from one another along the circumference of said sluice wheel, said sluice walls abutting sealingly with said radial outer ends against said circumferential wall except at said outlet, and said radial inner ends of said sluice walls are situated at a predetermined distance from the center of said sluice wheel, so that a central free sp