GB2176865A - Pipe having a segmented lining - Google Patents

Pipe having a segmented lining Download PDF

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Publication number
GB2176865A
GB2176865A GB08516265A GB8516265A GB2176865A GB 2176865 A GB2176865 A GB 2176865A GB 08516265 A GB08516265 A GB 08516265A GB 8516265 A GB8516265 A GB 8516265A GB 2176865 A GB2176865 A GB 2176865A
Authority
GB
United Kingdom
Prior art keywords
inserts
sleeve
pipe
insert
pipe according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08516265A
Other versions
GB8516265D0 (en
Inventor
Geoffrey Mervyn Buttrick
Richard Burton Rands
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Steel Corp
Original Assignee
British Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Steel Corp filed Critical British Steel Corp
Priority to GB08516265A priority Critical patent/GB2176865A/en
Publication of GB8516265D0 publication Critical patent/GB8516265D0/en
Publication of GB2176865A publication Critical patent/GB2176865A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/22—Pipes composed of a plurality of segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/10—Winding-up or coiling by means of a moving guide
    • B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum
    • B21C47/143—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum the guide being a tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/52—Adaptations of pipes or tubes
    • B65G53/523—Wear protection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • G02B6/4461—Articulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The present invention provides a pipe having an outer sleeve and a lining extending along the length of said sleeve comprising a plurality of commonly shaped and dimensioned apertured inserts (6) each formed to present a concave surface on one side and a convex surface on the other, the surfaces on adjacent inserts making sliding area contact with one another whereby the inserts together conform to the shape adopted by the outer sleeve. The outer sleeve may be fixed, advantageously curved, or it may be flexible, and the inserts are made from a wear resistant material, e.g. a high grade steel or a ceramic material or 'Nihard'. <IMAGE>

Description

SPECIFICATION Lined pipes This invention relates to lined pipes and more particularly relates to such pipes having linings which are replacable and suitable for use in a flexible or in a fixed mode.
From one aspect of the present invention provides a pipe having an outer sleeve and a lining extending along the length of said sleeve comprising a plurality of commonly shaped and dimensioned apertured inserts each formed to present a concave surface on one side and a convex surface on the other, said surfaces on adjacent inserts making sliding area contact with one another whereby the inserts together conform to the shape adopted by the outer sleeve.
The outer sleeve may be fixed, advantageously curved, or it may be flexible.
Probably the inserts are made from a wear resistant material, e.g. a high grade steel or a ceramic material or'Nihard'.
The inserts may readily be removed, inspected and replaced as necessary within the existing outer sleeve.
This invention is particularly suited to guiding particulate abrasive material injected from one site to another, the mode of mutual area contact between the inserts ensuring a consistent seal irrespective of the attitude of the pipe whilst maintaining a clear flow path for said material.
One specific use in this regard is in connection with the injection of granular coal into a blast furnace via tuyeres.
In order that the invention may be fully understood, two embodiments thereof will now be described, with reference to the accompanying drawings; in which: Figure 1 shows a fixed lined pipe according to this invention; Figure 2 shows a flexible lined pipe according to this invention; and Figures 3 and 4 show details of the inserts.
Referring now to Figure 1 a fixed pipe is depicted for transporting particulate material in the direction shown by the arrows. Two end pieces 1 and 2 each have flanges 3, 4 secured to them for the permanent fixings and each end piece is recessed to accommodate a steel sleeve 5. A number of ceramic members together make up the lining, these comprise apertured inserts 6 all commonly shaped and dimensional and dished to present a spherical concavity on one side and a spherical convexity on the other. One of the endmost inserts mates with a matching concave surface 7 provided on the end piece 1 whilst at the other end the relevant insert 6 mates with a convex surface provided on a ceramic insert 8 principally differing from the others in so far as its opposite surface is planarabutting a plain recessed surface in the end piece 2.Details of the insert 6 and the insert 8 are shown in Figures 3 and 4, respectively.
Upon assembly of the inserts within the sleeve 5 the end pieces 1 and 2 are seal welded to the sleeve making up the composite body.
Figure 2 illustrates a flexible pipe. In this instance the flanged end pieces (9,10) are different from the Figure 1 embodiment since they are designed to receive a flexible hose 11 on their outer surfaces, clamped in position by circlips (not shown). In particular the end piece 9 has grooves 13 on its outer surface and is provided with a spherical concavity 14 to mate with the adjacent insert 6 and the end piece 10 likewise has grooves 13 on its outer surface but has a plain end abutting its adjacent insert 15. This insert 15 is identical to the corresponding insert 8 except for the bored aperture which in this insert is inwardly tapered.
As will be evident, as the hose 11 is flexed the inserts accommodate the change in attitude making sliding contact with one another, maintaining a consistent seal whilst ensuring a clear flow path for the material.
The hose may be rubber or plastics material, reinforced as necessary.
Although this invention has been described with reference to the particular embodiments illustrated it is to be understood that various modifications may readily be made without departing from the scope of the invention. For example, the precise shape, dimensions and number of inserts may clearly vary consistent with attaining the object of this invention; the terminal end pieces and the mode of clamping may also be different from that shown. Further, the inserts need not be ceramic, an alternative hard material may be used.
1. A pipe having an outer sleeve and a lining extending along the length of said sleeve comprising a plurality of commonly shaped and dimensioned apertured inserts each formed to prevent a concave surface on one side and a convex surface on the other, said surfaces on adjacent inserts making sliding area contact with one another whereby the inserts together conform to the shape adopted by the outer sleeve whilst maintaining a consistent passage throughout the length of the pipe for the transport therethrough of a medium.
2. A pipe according to claim 1, wherein the inserts comprise a wear resistant material.
3. A pipe according to claim 2, wherein the inserts comprise steel or ceramic.
4. A pipe according to any one of claims 1 to 3, wherein the inserts are annular in cross-section.
5. A pipe according to any one of claims 1 to 4, therein the sleeve is flexible.
6. A pipe according to claim 5, wherein the sleeve comprises rubber or plastics.
7. A pipe according to any one of claims 1 to 6, comprising apertured capping pieces at each end of the pipe by which the endmost inserts and the sleeve are sealed to form an integral body.
8. A lined pipe, substantially as herein described and illustrated.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Lined pipes This invention relates to lined pipes and more particularly relates to such pipes having linings which are replacable and suitable for use in a flexible or in a fixed mode. From one aspect of the present invention provides a pipe having an outer sleeve and a lining extending along the length of said sleeve comprising a plurality of commonly shaped and dimensioned apertured inserts each formed to present a concave surface on one side and a convex surface on the other, said surfaces on adjacent inserts making sliding area contact with one another whereby the inserts together conform to the shape adopted by the outer sleeve. The outer sleeve may be fixed, advantageously curved, or it may be flexible. Probably the inserts are made from a wear resistant material, e.g. a high grade steel or a ceramic material or'Nihard'. The inserts may readily be removed, inspected and replaced as necessary within the existing outer sleeve. This invention is particularly suited to guiding particulate abrasive material injected from one site to another, the mode of mutual area contact between the inserts ensuring a consistent seal irrespective of the attitude of the pipe whilst maintaining a clear flow path for said material. One specific use in this regard is in connection with the injection of granular coal into a blast furnace via tuyeres. In order that the invention may be fully understood, two embodiments thereof will now be described, with reference to the accompanying drawings; in which: Figure 1 shows a fixed lined pipe according to this invention; Figure 2 shows a flexible lined pipe according to this invention; and Figures 3 and 4 show details of the inserts. Referring now to Figure 1 a fixed pipe is depicted for transporting particulate material in the direction shown by the arrows. Two end pieces 1 and 2 each have flanges 3, 4 secured to them for the permanent fixings and each end piece is recessed to accommodate a steel sleeve 5. A number of ceramic members together make up the lining, these comprise apertured inserts 6 all commonly shaped and dimensional and dished to present a spherical concavity on one side and a spherical convexity on the other. One of the endmost inserts mates with a matching concave surface 7 provided on the end piece 1 whilst at the other end the relevant insert 6 mates with a convex surface provided on a ceramic insert 8 principally differing from the others in so far as its opposite surface is planarabutting a plain recessed surface in the end piece 2.Details of the insert 6 and the insert 8 are shown in Figures 3 and 4, respectively. Upon assembly of the inserts within the sleeve 5 the end pieces 1 and 2 are seal welded to the sleeve making up the composite body. Figure 2 illustrates a flexible pipe. In this instance the flanged end pieces (9,10) are different from the Figure 1 embodiment since they are designed to receive a flexible hose 11 on their outer surfaces, clamped in position by circlips (not shown). In particular the end piece 9 has grooves 13 on its outer surface and is provided with a spherical concavity 14 to mate with the adjacent insert 6 and the end piece 10 likewise has grooves 13 on its outer surface but has a plain end abutting its adjacent insert 15. This insert 15 is identical to the corresponding insert 8 except for the bored aperture which in this insert is inwardly tapered. As will be evident, as the hose 11 is flexed the inserts accommodate the change in attitude making sliding contact with one another, maintaining a consistent seal whilst ensuring a clear flow path for the material. The hose may be rubber or plastics material, reinforced as necessary. Although this invention has been described with reference to the particular embodiments illustrated it is to be understood that various modifications may readily be made without departing from the scope of the invention. For example, the precise shape, dimensions and number of inserts may clearly vary consistent with attaining the object of this invention; the terminal end pieces and the mode of clamping may also be different from that shown. Further, the inserts need not be ceramic, an alternative hard material may be used. CLAIMS
1. A pipe having an outer sleeve and a lining extending along the length of said sleeve comprising a plurality of commonly shaped and dimensioned apertured inserts each formed to prevent a concave surface on one side and a convex surface on the other, said surfaces on adjacent inserts making sliding area contact with one another whereby the inserts together conform to the shape adopted by the outer sleeve whilst maintaining a consistent passage throughout the length of the pipe for the transport therethrough of a medium.
2. A pipe according to claim 1, wherein the inserts comprise a wear resistant material.
3. A pipe according to claim 2, wherein the inserts comprise steel or ceramic.
4. A pipe according to any one of claims 1 to 3, wherein the inserts are annular in cross-section.
5. A pipe according to any one of claims 1 to 4, therein the sleeve is flexible.
6. A pipe according to claim 5, wherein the sleeve comprises rubber or plastics.
7. A pipe according to any one of claims 1 to 6, comprising apertured capping pieces at each end of the pipe by which the endmost inserts and the sleeve are sealed to form an integral body.
8. A lined pipe, substantially as herein described and illustrated.
GB08516265A 1985-06-27 1985-06-27 Pipe having a segmented lining Withdrawn GB2176865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08516265A GB2176865A (en) 1985-06-27 1985-06-27 Pipe having a segmented lining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08516265A GB2176865A (en) 1985-06-27 1985-06-27 Pipe having a segmented lining

Publications (2)

Publication Number Publication Date
GB8516265D0 GB8516265D0 (en) 1985-07-31
GB2176865A true GB2176865A (en) 1987-01-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB08516265A Withdrawn GB2176865A (en) 1985-06-27 1985-06-27 Pipe having a segmented lining

Country Status (1)

Country Link
GB (1) GB2176865A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194307A (en) * 1986-07-09 1988-03-02 Zueblin Ag Pipe jocking conduits or tubular rings
GB2219440A (en) * 1988-06-06 1989-12-06 Gore & Ass Flexible housing
US5306449A (en) * 1980-01-25 1994-04-26 Brittain Perry N Process for lining high pressure pipeline
US5320388A (en) * 1988-02-25 1994-06-14 Miller Pipeline Service Corporation Well tubing liner system
US5634598A (en) * 1994-09-20 1997-06-03 Minerals Technologies, Inc. Abrasion resistant lined sweep nozzle
EP1134045A2 (en) * 2000-03-10 2001-09-19 SMS Demag AG Coil forming head for rod shaped rolled stock
EP1270871A1 (en) * 2001-06-21 2003-01-02 Hochtief Aktiengesellschaft Tubing segment, tubing ring and tunnel lining
US20120000564A1 (en) * 2010-07-02 2012-01-05 Tsapatsaris Dino L Flexible tubing
CN103016882A (en) * 2012-12-07 2013-04-03 江苏华创机械有限公司 Wear resistant elbow structure with internally pasted ceramic
CN103008394A (en) * 2011-09-26 2013-04-03 西门子工业公司 Rolling mill coil-forming laying head with path or pipe having laterally joined segmented construction
WO2014007615A1 (en) * 2012-07-06 2014-01-09 Yousef Basel A wear resistant and flexible hose
WO2015071684A3 (en) * 2013-11-15 2015-07-02 Tekmar Energy Limited Bend restrictor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538960A (en) * 1940-02-21 1941-08-22 Harry Da Costa Improvements in refractory linings for pipes or other conduits or narrow chambers
GB972361A (en) * 1962-07-25 1964-10-14 British Oxygen Co Ltd Abrasion-resistant linings for flexible pipes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538960A (en) * 1940-02-21 1941-08-22 Harry Da Costa Improvements in refractory linings for pipes or other conduits or narrow chambers
GB972361A (en) * 1962-07-25 1964-10-14 British Oxygen Co Ltd Abrasion-resistant linings for flexible pipes

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306449A (en) * 1980-01-25 1994-04-26 Brittain Perry N Process for lining high pressure pipeline
GB2194307A (en) * 1986-07-09 1988-03-02 Zueblin Ag Pipe jocking conduits or tubular rings
US5320388A (en) * 1988-02-25 1994-06-14 Miller Pipeline Service Corporation Well tubing liner system
GB2219440A (en) * 1988-06-06 1989-12-06 Gore & Ass Flexible housing
GB2219439A (en) * 1988-06-06 1989-12-06 Gore & Ass Flexible housing
GB2219440B (en) * 1988-06-06 1992-09-09 Gore & Ass Flexible housing
US5634598A (en) * 1994-09-20 1997-06-03 Minerals Technologies, Inc. Abrasion resistant lined sweep nozzle
US5884851A (en) * 1994-09-20 1999-03-23 Minerals Technologies Inc. Abrasion resistant lined sweep nozzle
EP1134045A2 (en) * 2000-03-10 2001-09-19 SMS Demag AG Coil forming head for rod shaped rolled stock
EP1134045A3 (en) * 2000-03-10 2002-07-24 SMS Demag AG Coil forming head for rod shaped rolled stock
EP1270871A1 (en) * 2001-06-21 2003-01-02 Hochtief Aktiengesellschaft Tubing segment, tubing ring and tunnel lining
WO2003001033A1 (en) * 2001-06-21 2003-01-03 Hochtief Aktiengesellschaft Tubbing, tubbing ring and tunnel works
US20120000564A1 (en) * 2010-07-02 2012-01-05 Tsapatsaris Dino L Flexible tubing
CN103008394A (en) * 2011-09-26 2013-04-03 西门子工业公司 Rolling mill coil-forming laying head with path or pipe having laterally joined segmented construction
WO2014007615A1 (en) * 2012-07-06 2014-01-09 Yousef Basel A wear resistant and flexible hose
CN103016882A (en) * 2012-12-07 2013-04-03 江苏华创机械有限公司 Wear resistant elbow structure with internally pasted ceramic
WO2015071684A3 (en) * 2013-11-15 2015-07-02 Tekmar Energy Limited Bend restrictor

Also Published As

Publication number Publication date
GB8516265D0 (en) 1985-07-31

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)