EP1520940A2 - drague suceuse - Google Patents

drague suceuse Download PDF

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Publication number
EP1520940A2
EP1520940A2 EP04023007A EP04023007A EP1520940A2 EP 1520940 A2 EP1520940 A2 EP 1520940A2 EP 04023007 A EP04023007 A EP 04023007A EP 04023007 A EP04023007 A EP 04023007A EP 1520940 A2 EP1520940 A2 EP 1520940A2
Authority
EP
European Patent Office
Prior art keywords
suction
guide tube
tube
air passage
dredger 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Withdrawn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
EP04023007A
Other languages
German (de)
English (en)
Other versions
EP1520940A3 (fr
Inventor
Karl Rinker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1520940A2 publication Critical patent/EP1520940A2/fr
Publication of EP1520940A3 publication Critical patent/EP1520940A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8816—Mobile land installations
    • E02F3/8825—Mobile land installations wherein at least a part of the soil-shifting equipment is mounted on a dipper-arm, backhoes or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/902—Component parts, e.g. arrangement or adaptation of pumps for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/003—Dredgers or soil-shifting machines for special purposes for uncovering conduits

Definitions

  • the invention relates to a suction dredger for targeted recording of suction material, in particular for excavating soil on buried pipes, with a pneumatic suction nozzle for picking up the suction material, a suction hose has arranged at the lower end of a suction nozzle is and at its opposite upper end in one Sump empties, with the suction on a Suction hose attached guide tube and a in the guide tube having inserted mouthpiece tube.
  • suction dredger For the targeted picking up of suction material are so-called suction dredger been developed in which with the help of a blower creates a negative pressure and the suction material via a proboscis, which hangs on a boom and in all directions is adjustable, to be sucked into a collection container can. There, the suction material is separated from the suction air stream. Dust or other particles still in the Transport air are present, are filtered out before the transport air blown off at the outlet side of the blower becomes.
  • suction dredger From DE 197 18 868 A1 is a suction dredger said Art known, the one at the free end of the suction pipe a suction nozzle has, which is placed on the sucked suction becomes.
  • the suction nozzle has a suction hose attached guide tube, in which a mouthpiece tube used axially displaceable.
  • Means of a drive device can the mouthpiece tube that at its lower End a soil loosening, usually serrated Mouthpiece carries, fed into the guide tube and out to be extended. In this way, the locomotive can of the soil to be automated, thus reducing the actuation the suction dredger for the operator much easier and at the same time a high suction power too achieve.
  • the invention is based on the object, a suction dredger for targeted picking up of suction material, in particular for lifting of soil, causing excessive sticking of suction material on the inner wall of the guide tube is avoided.
  • top and bottom are used in this description in relation to the normal direction of use of the suction nozzle used, i. the guide tube and the inside used mouthpiece tube are substantially vertical aligned and the mouthpiece tube carries at its lower End a mouthpiece with the ground or the male Suction comes into contact with the suction material through the Mouthpiece tube and the guide tube vertically from below is sucked up.
  • a plurality of air passage openings over the Scope of the guide tube distributed to the air from the outside of the guide tube approximately uniformly the annular channel supply. It has been shown that at least four Air passage openings and in particular at least eight Air passage openings should be provided, preferably in even mutual distance over the Scope of the guide tube are arranged distributed.
  • the annular channel is above the spacer sleeve between the Inner wall of the outer guide tube and the outer wall formed of the inner mouthpiece tube.
  • the air comes through the air inlet openings in a substantially radial Direction through the wall of the guide tube, is then deflected and flows in the annular channel in the axial direction of the guide tube.
  • the annular channel should have sufficient have axial length, which, for example can be achieved that the air passages on lower end of the annular channel and preferably immediately are formed above the spacer sleeve.
  • the limiting the annular channel at the lower end Upper end wall of the spacer sleeve as an inclined air duct is formed by means of the through the air passage opening the guide tube passing air in the longitudinal direction the annular channel can be deflected.
  • the upper the end wall can be at an angle of 45 ° inclined and from the inner wall of the outer guide tube facing radially outer side to the outer wall the inner mouthpiece tube facing radially inner Side formed rising in the flow direction be.
  • the radial incident from the outside on the end wall, air flowing through the air passage opening bounces the upper end wall of the spacer sleeve and is characterized deflected directly in the axial direction of the guide tube.
  • the upper end wall of the spacer sleeve in addition is rounded concave and / or smooth and almost infinitely in the wall of the air passage opening or the outer surface of the mouthpiece tube passes.
  • a nozzle ring in the annular channel preferably downstream of the air duct a nozzle ring is arranged, which has a plurality of nozzle openings having.
  • the nozzle ring blocks the cross section of the Ring channel, so that the air flowing through the annular channel through the nozzle openings must pass. Because the cross section the nozzle openings much smaller than the cross section of the annular channel, this leads to a significantly increased Flow velocity of the nozzle openings flowing through Air. To at least over the circumference of the nozzle ring approximately uniform flow velocity of To reach air, the nozzle openings should be even be distributed over the circumference of the nozzle ring.
  • the increase in the flow rate of the air can be in Development of the invention additionally supported be that the nozzle openings one in the flow direction have conically tapered cross-section.
  • the suction dredger is provided in a known manner, that the mouthpiece tube relative to the guide tube axially movable and by means of a drive device in the guide tube retractable and extendable from this is.
  • a drive device in the guide tube retractable and extendable from this is.
  • the mouthpiece tube In all axial positions of the mouthpiece tube is However, it ensures that above the spacer sleeve between the outer wall of the mouthpiece tube and the inner wall the outer guide tube of the annular channel formed is.
  • the axial length of the annular channel changes depending after axially adjusted position of the mouthpiece tube.
  • the mouthpiece tube must be relatively in its adjustment be guided safely to the outer guide tube.
  • the mouthpiece tube at least one radially protruding Has approach that in a guide of the spacer sleeve slidably engaged.
  • the guide groove runs preferably vertically and limits the axial adjustment the mouthpiece tube relative to the guide tube and defines its maximum extended position as well as its maximum retracted position.
  • a Ring seal is arranged between the guide tube and the mouthpiece tube below the spacer sleeve, and preferably at the lower end of the outer guide tube.
  • the air passages either individually or jointly closed.
  • a cover sleeve is arranged slidably between a the air passage openings at least partially covering Closure position and one the air passage openings be moved axially releasable opening position can.
  • a suction dredger 1 which has a chassis 2 in a conventional manner, on the conventional structures, including a collection container 5 are stored.
  • a swiveling telescopic arm 3 is provided, which ends in a deflection roller 4.
  • One pneumatic suction nozzle 10 comprises a suction hose 8, which opens with its upper end in the collecting container 5 and passes over the deflection roller 4.
  • a suction nozzle 11 is arranged, the one Grip frame 7 has. An operator can use the suction nozzle 11 on the handle frame 7 and capture him in a known Way together with the suction hose 8 horizontally and / or move vertically freely, being away from the pivotable one Telescopic arm 3 is supported.
  • a negative pressure which is generated in the collecting container 5 and thus also at the lower end of the suction nozzle 11 is effective, can a suction, for example soil, with the help of the suction nozzle 11 received and through the suction hose 8 in the Sump 5 are transported.
  • the suction nozzle 11 comprises an outer Guide tube 12, which is not shown in itself known manner at its upper end to the suction hose. 8 connected.
  • the guide tube 12th In the lower region of the guide tube 12th is mounted on the inner wall of a spacer sleeve 14, the inward opening on its inner wall, vertical Guide grooves 19 has.
  • a vertical mouthpiece tube 13 In the spacer sleeve 14 is a vertical mouthpiece tube 13 inserted, which is coaxial with the Guide tube 12 is arranged and by means of a not shown Drive device relative to the guide tube 12 axially, i. pulled into the guide tube 12 as well as from this can be extended down as it indicated by the double arrow V.
  • the mouthpiece tube 13 has on its outer surface several radially to outwardly projecting lugs 18, each in one of Guide grooves 19 of the spacer sleeve 14 engage.
  • the mouthpiece tube 13 has at its lower end a toothed mouthpiece 21, with which the male suction material, in particular the Soil can be loosened.
  • spacer sleeve 14 is between the inner wall the outer guide tube 12 and the outer wall of the inner Mouthpiece tube 13 a in the longitudinal direction of the guide tube 12 and thus axially extending annular channel 15th educated.
  • annular channel 15 At the lower end of the annular channel 15, i. near the upper end of the spacer sleeve 14 are in the guide tube 12th a plurality of radially extending air passage openings 16 are formed.
  • a the annular channel 15 at the lower end limiting upper end wall 14a of the spacer sleeve 14 is as inclined air guide surface formed by means of the by the air passage openings 16 from the outside of the guide tube 12 passing air in the longitudinal direction of Ring channel 15 is deflected.
  • the upper end wall 14a of the spacer sleeve 14 is concave rounded and smooth and essentially stepless in the outer surface 13a of the mouthpiece tube 13 via.
  • the radially outer end of the upper goes End wall 14 a smooth in the air passage opening 16 via.
  • this negative pressure also acts at the bottom End of the mouthpiece tube 13 and sucks the suction material in the Mouthpiece tube 13 and from this in the guide tube 12 a.
  • air is passing through the air passage openings 16 of the guide tube 12 sucked in and through the upper End wall 14a of the spacer sleeve 14 in the longitudinal direction of the Ring channel 15 deflected.
  • the air builds up in front of the nozzle ring 23, since they only this at the nozzle openings 24th can penetrate.
  • the flow rate increases the air substantially.
  • the air occurs as axial Ring flow at high speed from the annular channel 15th out.
  • the air flow is indicated by the arrows in Fig. 2.
  • the additional air ring flow in the guide tube 12 equalizes the flow velocity of the Air in cross-section of the guide tube 12 and prevents that the suction material on the inner wall of the guide tube 12 settles.
  • a cover sleeve 20 slidably arranged, which can be moved to a state in they the outside of the air passage openings 16 covered and thus prevents the additional air flow, as it makes sense in certain aufaugaugenden media can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Refuse Collection And Transfer (AREA)
  • Earth Drilling (AREA)
EP04023007A 2003-09-30 2004-09-28 Drague suceuse Withdrawn EP1520940A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10345320A DE10345320A1 (de) 2003-09-30 2003-09-30 Saugbagger
DE10345320 2003-09-30

Publications (2)

Publication Number Publication Date
EP1520940A2 true EP1520940A2 (fr) 2005-04-06
EP1520940A3 EP1520940A3 (fr) 2005-05-11

Family

ID=34306157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023007A Withdrawn EP1520940A3 (fr) 2003-09-30 2004-09-28 Drague suceuse

Country Status (2)

Country Link
EP (1) EP1520940A3 (fr)
DE (1) DE10345320A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300026046A1 (it) 2023-12-06 2025-06-06 Longo Euroservice S R L Automezzo per l’aspirazione di materiale secco e/o liquido

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1295470B (de) * 1963-12-13 1969-05-14 Hartmann Ag Maschf Saugvorrichtung zum Zufuehren von Schuettgut oder staubfoermigem Gut in eine Foerderleitung
JPS58222228A (ja) * 1982-06-17 1983-12-23 Hakko Co Ltd 土砂の真空排土装置
US5681132A (en) * 1994-11-16 1997-10-28 Sheppard, Jr.; C. James Laminar flow pneumatic conveying device
NL194554C (nl) * 1994-12-20 2002-07-02 Ihc Holland Nv Zuiginrichting die door middel van een zuigbuis met een baggervaartuig kan worden verbonden.
DE19718868A1 (de) * 1997-05-03 1998-11-05 Rinker Karl Dipl Ing Fh Saugbagger
JP2001207473A (ja) * 2000-01-28 2001-08-03 Toho Gas Co Ltd 吸込ノズル及び吸込装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300026046A1 (it) 2023-12-06 2025-06-06 Longo Euroservice S R L Automezzo per l’aspirazione di materiale secco e/o liquido

Also Published As

Publication number Publication date
EP1520940A3 (fr) 2005-05-11
DE10345320A1 (de) 2005-04-14

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