Energy diffusing wear ring and methods thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B04C-011/00
B04C-005/085
B04C-005/08
B29C-045/14
F16J-015/16
F04D-029/02
F04D-029/40
F16J-015/06
F16J-015/10
F16L-023/18
F16J-015/447
출원번호
US-0238594
(2012-08-10)
등록번호
US-8991621
(2015-03-31)
국제출원번호
PCT/US2012/050275
(2012-08-10)
§371/§102 date
20140212
(20140212)
국제공개번호
WO2013/025472
(2013-02-21)
발명자
/ 주소
Harwell, Travis
Moorhead, Robert G.
출원인 / 주소
Flsmidth A/S
대리인 / 주소
Sharp, Jeffrey A.
인용정보
피인용 횟수 :
0인용 특허 :
12
초록▼
An energy diffusion sealing ring 872 for use with a hydrocyclone or pump is provided. The energy diffusion sealing ring 872 comprises a sacrificial suspension matrix 872A comprised of a polymer, elastomer, or combination thereof, and a number of packed inserts 872B suspended in the matrix 872. The m
An energy diffusion sealing ring 872 for use with a hydrocyclone or pump is provided. The energy diffusion sealing ring 872 comprises a sacrificial suspension matrix 872A comprised of a polymer, elastomer, or combination thereof, and a number of packed inserts 872B suspended in the matrix 872. The matrix 872 serves as delivery means for the inserts 872B into one or more recessed portions 833, 841. The inserts 872B comprise a hard material (e.g., ceramic or carbide) and form wear bodies which slow and dissipate kinetic energy of escaping slurry by way of creating paths of resistance. As the suspension matrix 872A erodes over time, a plurality of interstices 872C between the inserts 872B are formed. Escaping slurry 852 slows as it traverses three-dimensional serpentine paths defined by said interstices 872C, thereby reducing its potential to wear surrounding components. Methods for manufacturing an energy diffusion sealing ring 872 and for dissipating the energy of slurry 850 are also disclosed.
대표청구항▼
1. A hydrocyclone comprising: a first section having a first casing and a first liner which is disposed radially inwardly of the first casing;a second section having a second casing and a second liner which is disposed radially inwardly of the second casing;a receiving portion comprising an annular
1. A hydrocyclone comprising: a first section having a first casing and a first liner which is disposed radially inwardly of the first casing;a second section having a second casing and a second liner which is disposed radially inwardly of the second casing;a receiving portion comprising an annular groove provided in said first and second casings; a radially inner portion of the receiving portion being defined by radially outwardly facing surfaces of the first and second liners; a radially outer portion of the receiving portion being defined by radially inwardly facing surfaces of the first and second casings; an upper portion of the receiving portion being defined by a surface of the first casing; and a lower portion of the receiving portion being defined by a surface of the second casing; thereby defining a cavity for an annular energy diffusion ring to reside, and,an annular energy diffusion ring situated in said receiving portion, the annular energy diffusion ring comprising a resilient suspension matrix of at least one of a polymer or elastomer which is configured to be sacrificed by erosion during use, and a plurality of closely-packed hard inserts suspended within said resilient suspension matrix;wherein in use, the annular energy diffusion ring is configured to diffuse slurry passing between said first liner and said second liner before it reaches a portion of the first or second casing. 2. A hydrocylone according to claim 1, wherein the closely-packed hard inserts are formed of a ceramic or carbide material. 3. A hydrocylone according to claim 1, wherein the resilient suspension matrix comprises one or more of a silicone, a silicone rubber, fluorosilicone rubber, a urethane, a polyurethane, ethylene propylene copolymer, a polybutadiene rubber, a butyl rubber, a nitrile rubber, a natural rubber, an isoprene rubber, a fluoroelastomer, polychloroprene, tetrafluoroethylene, tetrafluoropropylene, an acrylic or acrylic rubber, styrene butadiene rubber, or soft rubber. 4. A hydrocylone according to claim 1, wherein a configuration or distribution of the closely-packed hard inserts is randomized to allow tighter packing of the closely-packed hard inserts. 5. A hydrocylone according to claim 1, wherein said closely-packed hard inserts comprise one or more of the following: prismatic shapes, cylindrical shapes, surface textures, sharp edges, depressions, grooves, ridges, smooth round spheres, circular tiles, cubes, 3-dimensionally packing polyhedrons, 3-dimensionally non-packing polyhedrons, hexagonal shapes, honeycomb shapes. 6. A method of reducing wear in a hydrocyclone comprising a first section having a first casing and a first liner which is disposed radially inwardly of the first casing; a second section having a second casing and a second liner which is disposed radially inwardly of the second casing; a receiving portion comprising an annular groove provided in said first and second casings; a radially inner portion of the receiving portion being defined by radially outwardly facing surfaces of the first and second liners; a radially outer portion of the receiving portion being defined by radially inwardly facing surfaces of the first and second casings; an upper portion of the receiving portion being defined by a surface of the first casing; and a lower portion of the receiving portion being defined by a surface of the second casing; thereby defining a cavity for an annular energy diffusion ring, and, an annular energy diffusion ring situated in said receiving portion, the annular energy diffusion ring comprising a resilient suspension matrix of at least one of a polymer or elastomer which is configured to be sacrificed by erosion during use, and a plurality of closely-packed hard inserts suspended within said resilient suspension matrix; the method comprising: allowing slurry to wear away portions of the resilient suspension matrix thereby forming a plurality of interstices between said closely-packed hard inserts;maintaining the closely-packed hard inserts within the receiving portion even after portions of the resilient suspension matrix have been worn away; and,diffusing energy of slurry moving between said first and second liners via paths of resistance created by said plurality of interstices between said closely-packed hard inserts. 7. The method according to claim 6, wherein the closely-packed hard inserts are formed of a ceramic or carbide material. 8. The method according to claim 6, wherein the resilient suspension matrix comprises one or more of a silicone, a silicone rubber, fluorosilicone rubber, a urethane, a polyurethane, ethylene propylene copolymer, a polybutadiene rubber, a butyl rubber, a nitrile rubber, a natural rubber, an isoprene rubber, a fluoroelastomer, polychloroprene, tetrafluoroethylene, tetrafluoropropylene, an acrylic or acrylic rubber, styrene butadiene rubber, or soft rubber. 9. The method according to claim 6, wherein a configuration or distribution of the closely-packed hard inserts is randomized to allow tighter packing of the closely-packed hard inserts. 10. The method according to claim 6, wherein said closely-packed hard inserts comprise one or more of the following: prismatic shapes, cylindrical shapes, surface textures, sharp edges, depressions, grooves, ridges, smooth round spheres, circular tiles, cubes, 3-dimensionally packing polyhedrons, 3-dimensionally non-packing polyhedrons, hexagonal shapes, honeycomb shapes.
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이 특허에 인용된 특허 (12)
Streckert Holger H. (San Diego CA) Kantner Richard D. (La Jolla CA), Adjustable seal assembly.
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