EP0184207B1 - Verfahren zur Trogherstellung bei Wasserförderschnecken - Google Patents

Verfahren zur Trogherstellung bei Wasserförderschnecken Download PDF

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Publication number
EP0184207B1
EP0184207B1 EP85115433A EP85115433A EP0184207B1 EP 0184207 B1 EP0184207 B1 EP 0184207B1 EP 85115433 A EP85115433 A EP 85115433A EP 85115433 A EP85115433 A EP 85115433A EP 0184207 B1 EP0184207 B1 EP 0184207B1
Authority
EP
European Patent Office
Prior art keywords
screw
trough
sections
manufacturing
turning
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.)
Expired - Lifetime
Application number
EP85115433A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0184207A3 (en
EP0184207A2 (de
Inventor
Karl-August Radlik
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.)
Radlik Karl-August
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
Priority to AT85115433T priority Critical patent/ATE50835T1/de
Publication of EP0184207A2 publication Critical patent/EP0184207A2/de
Publication of EP0184207A3 publication Critical patent/EP0184207A3/de
Application granted granted Critical
Publication of EP0184207B1 publication Critical patent/EP0184207B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/08—Scoop devices
    • F04B19/12—Scoop devices of helical or screw-type
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/22—Adaptations of pumping plants for lifting sewage

Definitions

  • the invention relates to the production of troughs in water screw conveyors.
  • In-situ concrete troughs are pre-concreted in rough outlines.
  • the screw is then installed and the final screed is removed using a scraper attached to the screw.
  • a small gap that is constant over the entire circumference is achieved.
  • shape deviations, the z. B. due to the manufacture or installation, are compensated for by adapting the trough to the screw.
  • a disadvantage is the low strength of the screed applied by hand because it cannot be compacted. Rapid wear has the consequence that the quality of the gap and thus the function of the screw quickly deteriorate.
  • Steel troughs are not made with the screw. They are manufactured according to the given dimensions of the screw in a sheet metal processing workshop. The rough tolerances of the trough and screw add up, so that it is not always possible to maintain the hydraulic gap. An additional enlargement of the gap is necessary to compensate for changes in shape. After installing the prefabricated trough, the screw must be adapted to the no longer changeable trough and aligned with it. Aligning the screw according to the trough is a complex task, depending on the screw dimensions, which is not always optimal.
  • the screw can only be installed when it is fully assembled on site, aligned with the shell and undamaged.
  • the tolerance of the shaped stones is smaller than that of a steel trough, but it also adds to the tolerance of the screw.
  • the shaped stones can still be aligned individually using a cord or other aids when installing the trough, but once the snail has been installed you can no longer move it, so alignment with the snail itself is not possible. Therefore, the screw must also be adapted to the trough in the case of prefabricated concrete blocks. The reverse is not possible.
  • the worm is first mounted, preferably fixed immovably in the final position on the foundations. Only then are dimensionally accurate and wear-resistant precast concrete blocks installed, so that it is possible to use the screw itself as a teaching tool and to rule out any deviations from the correct position.
  • the stones can be installed with or without an axial connection. All stones can be brought to their end position together, but also individually by rotating the screw. The end faces of the shaped blocks can be sealed against each other.
  • Figure 1 shows the elevation of a water screw
  • Figure 2, 3 and 4 show a cross section through the screw at the location shown in Figure 1 in successive stages of the process.
  • the screw body 1 is attached to the foundations 3 with its bearings 2.
  • Figure 2 it can be seen that the screw body 1 is surrounded on the right, left and below by a concrete channel 4 which is at a sufficient distance from the screw body 1 for the installation of the trough.
  • Figure 3 are placed on the screw body 1 spacer 5 and the shaped stones 6 on this.
  • the shaped blocks 6 are aligned with the screw body 1 and fastened to it.
  • the screw body 1 is rotated according to Figure 4 so that the shaped blocks 6 hang in their final position.
  • the space between the concrete channel 4 and the shaped blocks 6 is filled with in-situ concrete 7 in order to fix the shaped blocks 6.
  • the attachment of the shaped blocks 6 to the screw body 1 is released and the spacers 5 are removed. This makes the trough with the correct gap and wear-resistant surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Screw Conveyors (AREA)
  • Revetment (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Sewage (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP85115433A 1984-12-06 1985-12-05 Verfahren zur Trogherstellung bei Wasserförderschnecken Expired - Lifetime EP0184207B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85115433T ATE50835T1 (de) 1984-12-06 1985-12-05 Verfahren zur trogherstellung bei wasserfoerderschnecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3444440 1984-12-06
DE19843444440 DE3444440A1 (de) 1984-12-06 1984-12-06 Verfahren zur trogherstellung bei wasserfoerderschnecken

Publications (3)

Publication Number Publication Date
EP0184207A2 EP0184207A2 (de) 1986-06-11
EP0184207A3 EP0184207A3 (en) 1986-12-03
EP0184207B1 true EP0184207B1 (de) 1990-03-07

Family

ID=6252004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115433A Expired - Lifetime EP0184207B1 (de) 1984-12-06 1985-12-05 Verfahren zur Trogherstellung bei Wasserförderschnecken

Country Status (3)

Country Link
EP (1) EP0184207B1 (enrdf_load_stackoverflow)
AT (1) ATE50835T1 (enrdf_load_stackoverflow)
DE (1) DE3444440A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913148C1 (enrdf_load_stackoverflow) * 1989-04-21 1990-10-04 Karl-August 7070 Schwaebisch Gmuend De Radlik

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094376A (en) * 1958-10-03 1963-06-18 American Metal Prod Method of construction of low friction elements
DE1163147B (de) * 1960-01-13 1964-02-13 Georg Neidl Dipl Ing Foerdertrog aus Beton fuer eine schraeg liegende Wasserschnecke
AT217870B (de) * 1960-04-26 1961-10-25 Purator Klaeranlagen Grosshand Trog für Schneckenpumpen
GB1099535A (en) * 1965-06-08 1968-01-17 Naamlooze Vennootschap Machf S Improvements in or relating to screw pumps
DE1975186U (de) * 1967-04-19 1967-12-14 Maschf Augsburg Nuernberg Ag Trog fuer eine schraeg liegende foerderschnecke.
DD151334A1 (de) * 1980-06-06 1981-10-14 Horst Wagner Verfahren zur herstellung einer betontrogschale

Also Published As

Publication number Publication date
EP0184207A3 (en) 1986-12-03
DE3444440A1 (de) 1986-06-19
ATE50835T1 (de) 1990-03-15
DE3444440C2 (enrdf_load_stackoverflow) 1987-08-06
EP0184207A2 (de) 1986-06-11

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