Vacuum conveying apparatus with a weighing or metering device
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65G-051/00
G01G-017/00
출원번호
US-0912315
(2004-08-05)
등록번호
US-7368671
(2008-05-06)
우선권정보
DE-203 12 073 U(2003-08-05)
발명자
/ 주소
Volkmann,Thilo
출원인 / 주소
Volkman GmbH
대리인 / 주소
Fay Sharpe LLP
인용정보
피인용 횟수 :
3인용 특허 :
4
초록▼
A Vacuum conveying apparatus with a weighing and metering device, comprises a separation container (10), acted on by a vacuum, for intermittent intermediate storage of material conveyed in a suction gas flow, a force isolation means for entry of conveyed material into the separation container (worki
A Vacuum conveying apparatus with a weighing and metering device, comprises a separation container (10), acted on by a vacuum, for intermittent intermediate storage of material conveyed in a suction gas flow, a force isolation means for entry of conveyed material into the separation container (working side), a weighing device (50) for, in particular, continuous weighing of the separation container, as well as a vacuum pump (70) and a controller. In order to create a vacuum conveying apparatus that can guarantee a more precise weighing and/or a more accurate stipulation of the timepoint for turning off the vacuum pump or for interrupting the suction process during the ongoing conveyance process, the vacuum pump (70) is isolated in terms of force from the separation container (10) and is also situated such that it is not weighed.
대표청구항▼
The invention claimed is: 1. Vacuum conveying apparatus with a weighing and metering device, said vacuum conveying apparatus comprising: a separation container (10), acted on by a vacuum, for intermittent intermediate storage of material conveyed in a suction gas flow, a weighing device (50) for we
The invention claimed is: 1. Vacuum conveying apparatus with a weighing and metering device, said vacuum conveying apparatus comprising: a separation container (10), acted on by a vacuum, for intermittent intermediate storage of material conveyed in a suction gas flow, a weighing device (50) for weighing of the separation container, a vacuum pump (70) and a controller, wherein: the separation container (10) is vacuumtight and comprises a vacuumtight discharge device (16); an entry opening (12A) for entrance of conveyed material into the separation container (10) is connected in a vacuumtight manner through a first (working side) force isolation means to a suction conduit (40); an outlet opening (14A) for exit of suction gas from the separation container (10) is connected in a vacuumtight manner through a second (pure gas side) force isolation means to a vacuum conduit (42); the vacuum pump (70) is isolated in terms of force from the separation container (10) and is also situated such that it is not weighed by the weighing device (50); the entry and outlet openings (12A, 14A) point in opposing directions; and, the first and second force isolation means comprise respective flexible, vacuum-pressure-resistant elements arranged at least approximately coaxially relative to each other. 2. Vacuum conveying apparatus according to claim 1, further comprising: an inner holding frame (22) for a connection with the separation container (10), and an outer holding frame (24), which has holding means (28A, 28B) for the suction conduit on the working side and for the vacuum conduit on the pure gas side. 3. Vacuum conveying apparatus according to claim 2, wherein the first and second force isolation means are arranged between the outer holding frame (24) and the entry and outlet openings (12A; 14A) to the separation container (10), respectively. 4. Vacuum conveying apparatus according to claim 2, wherein the inner and/or outer holding frames (22, 24) are designed approximately in a U shape. 5. Vacuum conveying apparatus according to claim 4, wherein the inner and/or outer holding frames (22, 24) are equipped with vertical supports (23, 25) that are placed approximately in the center of the U's. 6. Vacuum conveying apparatus according to claim 2, wherein the weighing device (50) is located and acts between the outer (22) and the inner holding frames (24). 7. Vacuum conveying apparatus according to claim 6, wherein the weighing device is detachably connected to the outer and/or inner holding frames (22, 24). 8. Vacuum conveying apparatus according to claim 1, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 9. Vacuum conveying apparatus according to claim 3, wherein the inner and/or outer holding frames (22, 24) are designed approximately in a U shape. 10. Vacuum conveying apparatus according to claim 3, wherein the weighing device (50) is located and acts between the outer (22) and the inner holding frames (24). 11. Vacuum conveying apparatus according to claim 4, wherein the weighing device (50) is located and acts between the outer (22) and the inner holding frames (24). 12. Vacuum conveying apparatus according to claim 5, wherein the weighing device (50) is located and acts between the outer (22) and the inner holding frames (24). 13. Vacuum conveying apparatus according to claim 2, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 14. Vacuum conveying apparatus according to claim 3, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 15. Vacuum conveying apparatus according to claim 4, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 16. Vacuum conveying apparatus according to claim 5, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 17. Vacuum conveying apparatus according to claim 6, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 18. Vacuum conveying apparatus according to claim 7, further comprising a filter (15) in the suction gas flow between the working and pure gas sides, wherein a differential pressure resulting from the filter (15) is compensated by a suitable orientation of the mouth openings (12A, 14A) with respect to one another, and/or of the separation container (10) in the weighing frame. 19. A vacuum conveying apparatus comprising: a separation container for intermittent intermediate storage of material conveyed in a suction gas flow, a weighing device for weighing the separation container, a vacuum pump and a controller, wherein: the separation container is vacuumtight and comprises a vacuumtight discharge device; an entry opening in communication with separation container is connected in a vacuumtight manner through a first (working side) force isolator to a suction conduit; an outlet opening in communication with the separation container is connected in a vacuumtight manner through a second (pure gas side) force isolator to a vacuum conduit; the vacuum pump is in fluid communication with the vacuum conduit and is physically isolated from the separation container such that it is not weighed by the weighing device; and, the first and second force isolation means comprise respective flexible, vacuum-pressure-resistant elements arranged at least approximately coaxially relative to each other.
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이 특허에 인용된 특허 (4)
Bruder Stephen (Budd Lake NJ) Higby Philip (Towaco NJ) Roth Edgar (Dumont NJ), Apparatus and method for weighing fluent material.
Estes, Andrew C.; Stobaugh, Kyle A.; Moody, Mark A.; Estes, Jeremy B.; Balaster, Ray W.; Danzy, Kurt R., Vacuum transfer apparatus having load isolation weighing system including a rigid pipe section pivotally mounted to a support frame.
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