Apparatus and method for transferring a Bingham solid through a long conduit
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0375543
(1982-05-06)
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발명자
/ 주소 |
- Coursen David L. (Mercersburg PA)
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출원인 / 주소 |
- E. I. Du Pont de Nemours and Company (Wilmington DE 02)
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인용정보 |
피인용 횟수 :
8 인용 특허 :
2 |
초록
▼
An apparatus for injecting a lubricating liquid, e.g., water, into a conduit as an annular layer around a flowing Bingham solid, e.g., a water gel or water-in-oil emulsion explosive, to facilitate the flow of the Bingham solid has an annular passageway from which the lubricating liquid flows into a
An apparatus for injecting a lubricating liquid, e.g., water, into a conduit as an annular layer around a flowing Bingham solid, e.g., a water gel or water-in-oil emulsion explosive, to facilitate the flow of the Bingham solid has an annular passageway from which the lubricating liquid flows into a cylindrical chamber containing the flowing Bingham solid. The annular passageway has a constricted throat portion of adjustable width, which, along with the flow rates of the Bingham solid and the lubricating liquid, is adjusted to produce a thin film of lubricant which allows lubricated plug flow of the Bingham solid in a descending section of conduit under the propelling force of gravity alone. Low drag permits the delivery of Bingham solid explosives into very deep vertical holes with no increase in the required pumping pressure.
대표청구항
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Apparatus for aiding in the transfer of a Bingham solid by lubricated plug flow through a conduit comprising: (a) a first cylinder open at both ends and having a substantially uniform internal diameter; (b) a second cylinder open at both ends and having a substantially uniform internal diameter less
Apparatus for aiding in the transfer of a Bingham solid by lubricated plug flow through a conduit comprising: (a) a first cylinder open at both ends and having a substantially uniform internal diameter; (b) a second cylinder open at both ends and having a substantially uniform internal diameter less than the internal diameter of said first cylinder, the outer surface of said second cylinder being stepped down at one end in a manner such that (1) an initial stepdown portion has a diameter which is less than the outer diameter, and greater than the internal diameter, of said first cylinder, and (2) a terminal stepdown portion, adjacent a blunt end surface of said second cylinder, has a diameter which is substantially uniform and less than the internal diameter of said first cylinder; and (c) a third cylinder open at both ends and fitted over, and in fluid-tight, axially rigid, coupling engagement with, overlapping ends of said first and second cylinders, said first and second cylinders being positioned coaxially with respect to one another in a manner such that said blunt end surface adjacent said terminal stepdown portion of the outer surface of said second cylinder is inside said first cylinder, thereby forming coaxial, communicating, first and second cylindrical chambers delimited by the plane which passes through said blunt end surface, said initial stepdown portion of the outer surface of said second cylinder, the end surface of said first cylinder adjacent thereto, and a portion of the inside surface of said third cylinder together forming an annular chamber coaxial with said first and second cylindrical chambers, the relative displacement of said first and second cylinders along their common axis being adjustable at their coupling with said third cylinder, thereby allowing said annular chamber to be (1) closed to said cylindrical chambers whereby a portion of a surface between said initial and terminal stepdown portions of the outer surface of said second cylinder is in contact with a conforming portion of a facing surface at the end of said first cylinder, or (2) open as a result of the separation of said conforming surface portions, said separation forming an annular passageway connecting said annular chamber with said first cylindrical chamber, said annular passageway having a constricted throat portion and a wider exit portion that is coaxial with, and ends in said plane which delimits, said cylindrical chambers, the distal end of said second cylinder being adapted to connect with a source of Bingham solid, and the wall of said third cylinder containing a passageway from its outer surface to said annular chamber adapted to connect with a source of lubricating liquid, and the distal end of said first cylinder being adapted to connect with a conduit for receiving Bingham solid and lubricating liquid exiting from said first cylindrical chamber.
이 특허에 인용된 특허 (2)
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Brockington James W. (Allentown PA), Transportation and placement of water-in-oil emulsion explosives and blasting agents.
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Olney Robert S. (Bethlehem PA), Transportation and placement of water-in-oil explosive emulsions.
이 특허를 인용한 특허 (8)
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Allyn Daniel W. (Corona CA), Additive injection system for fluid transmission pipelines.
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Smith William C. (7701 Whiterim Ter. Potomac MD 20854), Air operated low pressure spraying system.
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Kerry S. Atkinson ; John B. Halander, Delivery of emulsion explosive compositions through an oversized diaphragm pump.
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Benzie,Scott Anthony; Bosma,Martin Gerard Rene; Geilikman,Mikhail Boris; Filippov,Andrei Gregory, Method of installing a tubular assembly in a wellbore.
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Miller Kenneth A. (West Jordan UT), Methods of pumping and loading emulsion slurry blasting compositions.
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Esparza, Jose Oscar; Zabaras, George John, Pipes, systems, and methods for transporting fluids.
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McDonald Keith J. (Abbotsford CAX) Atkinson Kerry S. (Lehi UT), System for pneumatic delivery of emulsion explosives.
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Engelhard, Rolf; Tessitore, Joseph Anthony; Renigar, Seth Darrell, Venturi bypass system and associated methods.
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