EP0490257A1 - Verfahren und Kessel zur Kesselentleerung durch einen Ausschubkolben - Google Patents

Verfahren und Kessel zur Kesselentleerung durch einen Ausschubkolben Download PDF

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Publication number
EP0490257A1
EP0490257A1 EP91120844A EP91120844A EP0490257A1 EP 0490257 A1 EP0490257 A1 EP 0490257A1 EP 91120844 A EP91120844 A EP 91120844A EP 91120844 A EP91120844 A EP 91120844A EP 0490257 A1 EP0490257 A1 EP 0490257A1
Authority
EP
European Patent Office
Prior art keywords
piston
boiler
pistons
extension
tank
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Withdrawn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
EP91120844A
Other languages
German (de)
English (en)
French (fr)
Inventor
Bert Kleberg
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.)
Herm J Hellmers GmbH
Original Assignee
Herm J Hellmers GmbH
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 Herm J Hellmers GmbH filed Critical Herm J Hellmers GmbH
Publication of EP0490257A1 publication Critical patent/EP0490257A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • E03F7/103—Wheeled apparatus for emptying sewers or cesspools with a tank featuring one or more partition walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/58—Large containers characterised by means facilitating filling or emptying by displacement of walls
    • B65D88/60—Large containers characterised by means facilitating filling or emptying by displacement of walls of internal walls
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

Definitions

  • the invention relates to a method according to the preamble of claim 1 and to a boiler according to the preamble of claim 6 for performing the method.
  • Such boilers as z. B. from DE-PS 923 716 or, with a composite double-concave piston, from US-PS 3 828 988 are known, in particular parts of tank wagons, with a mud space, which has been filled with mud, for example, in the case of pit or sewer emptying and should be emptied at the appropriate place with the help of the extension piston.
  • a pneumatic pressure cushion is built up on the back of the piston, which pushes the piston forward.
  • the boiler size and the operating pressure for such a procedure are limited in order to limit the air volume under pressure and thus the stored energy.
  • the invention is based on the object, despite the restrictions of the compressed air volume and the operating pressure, of emptying longer boilers with the aid of an extension piston.
  • This is achieved by the invention characterized in claims 1 and 6.
  • the extension piston is advanced in stages, followed by a second piston, between which and the extension piston the pneumatic pressure is built up.
  • the piston pushed in is locked at the end of each step, so that the new piston stroke and the new pressure volume only relate to the new thrust section of the extension piston. In most cases, pushing out in two steps should suffice, since in boilers on vehicles of the boiler length there are also limits to the vehicle length.
  • the second piston can differ in construction from the first piston. Because of the lower load, a lighter design, e.g. B. only conceivable as a movable partition. It can also be transported by means other than pneumatic means, for example with the aid of a cable winch acting between the pistons or another suitable device.
  • 1 to 4 each show a schematic longitudinal sectional view of a boiler with an extension piston and a second piston in different operating positions.
  • an extension piston 2 and a second piston 3 are longitudinally displaceable.
  • a bottom flap 4 of the boiler 1 can be opened and is shown in the open state in all the figures.
  • the boiler 1 Along the longitudinal extension of the boiler 1 there are three releasable detents 11, 12 and 13 for fixing the pistons 2 and 3, and two stops 14 and 15 for limiting the piston movement.
  • the detents and stops are each shown in a simple manner, but two or more detents or stops may also be present on the relevant cross sections around the circumference of the boiler.
  • the stop 15 is rigid and prevents the piston from escaping from the boiler
  • the stop 14 is a pneumatically operated bolt which, like the stop 15, projects into the boiler in its rest position, but can be withdrawn from it.
  • the boiler volume is divided into three different sections or rooms, namely a room 21 which represents the actual usable space of the boiler, for example loaded with sludge, a room 22 which lies between the pistons 2 and 3, and a room 23 which lies between the Piston 3 and the end of the boiler.
  • the sizes of these spaces are variable due to the piston movements.
  • the pistons 2 and 3 usually consist of guide rings which partially surround the spaces 22 and 23. In the area of the guide rings, the releasable detents 11, 12 and 13 also engage the pistons 2 and 3.
  • the length of the pressure chamber, and thus the stroke of the extension piston 2 must not exceed a length L for the required pneumatic pressure and in relation to the boiler diameter.
  • the construction shown works as follows: First, according to FIG. 1, the pistons 2 and 3 are held in their respective initial positions by the catches 11 and 12, namely abutting against one another at the bottom end 4 of the boiler end. The bottom flap 4 is opened, and then the locking device 12 is released and compressed air is conveyed into the room 22 via pipes, not shown. The pushing-out piston 2 is moved in the direction of the open bottom flap 4 by the pressure that builds up and pushes the sludge out until it comes to a stop after measuring the length L at the stop 14 (FIG. 2). The pressure from the room 22 is now released and the lock 11 is released, whereupon the compressed air is conveyed into the room 23.
  • the second piston 3 which is not slowed down by the sludge to be pushed out, can be moved forward even by relatively low pressure and, at the end of its stroke, lies against the rear of the extension piston (FIG. 3), whereupon the pressure in chamber 23 is released and the Locking 13, which is arranged at a distance from the stop 14 corresponding to the piston constructions, operates so that it fixes the second piston 3.
  • the stop 14 is withdrawn from the boiler and compressed air is again conducted into the space 22, the position of which in the boiler has changed compared to the starting position (FIG. 1).
  • the second piston 3 now serves as a type of boiler partition wall, which limits the pressure chamber 22 to the rear, while the extension piston 2 is pushed as far as the stop 15 and the sludge is pushed out of the long boiler. Again, the piston stroke is less than or equal to length L.
  • the laying of the lines and valves does not present any difficulties to the person skilled in the art.
  • the feed points or pressure relief points are predetermined, to a certain extent flexible pipes connected to the pistons can also be considered.
  • the sequence of the individual work steps can alternatively be controlled manually or automatically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
EP91120844A 1990-12-07 1991-12-04 Verfahren und Kessel zur Kesselentleerung durch einen Ausschubkolben Withdrawn EP0490257A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4039131 1990-12-07
DE19904039131 DE4039131A1 (de) 1990-12-07 1990-12-07 Verfahren und kessel zur kesselentleerung durch einen ausschubkolben

Publications (1)

Publication Number Publication Date
EP0490257A1 true EP0490257A1 (de) 1992-06-17

Family

ID=6419838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120844A Withdrawn EP0490257A1 (de) 1990-12-07 1991-12-04 Verfahren und Kessel zur Kesselentleerung durch einen Ausschubkolben

Country Status (2)

Country Link
EP (1) EP0490257A1 (enrdf_load_stackoverflow)
DE (1) DE4039131A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0625616A3 (de) * 1993-05-08 1994-12-07 Karl Wiedemann Vorrichtung zur Aufnahme von Schütt- und/oder Schwemmgut
CN111806329A (zh) * 2020-04-17 2020-10-23 李巧庆 一种流态水泥土运输装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH682569A5 (de) * 1991-01-04 1993-10-15 Benninger Ag Maschf Fadenwächter für die Ueberwachung der Fadenspannung an Textilmaschinen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923716C (de) * 1953-10-20 1955-02-21 Herm I Hellmers G M B H Fahrze Vorrichtung zum Entleeren von Aufnahme- oder Transportbehaeltern fuer schlammartige Massen mittels einer im Aufnahmebehaelter axial beweglichen Trennwand
US3828988A (en) * 1973-04-04 1974-08-13 Bervy Inc Tank for bulk transport and storage of semisolid materials
US4172538A (en) * 1976-09-02 1979-10-30 Ab Broderna Rickardsson Transport and storage container for fluent or fluidizable material
EP0013591A1 (en) * 1979-01-05 1980-07-23 Mohammed Ruholah Yazdani Kassravi Bulk liquid container
DE8801127U1 (de) * 1988-01-30 1988-03-24 Müller Umwelttechnik GmbH & Co KG, 32816 Schieder-Schwalenberg Zylindrischer Schlammabfuhrbehälter eines Reinigungsfahrzeuges

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923716C (de) * 1953-10-20 1955-02-21 Herm I Hellmers G M B H Fahrze Vorrichtung zum Entleeren von Aufnahme- oder Transportbehaeltern fuer schlammartige Massen mittels einer im Aufnahmebehaelter axial beweglichen Trennwand
US3828988A (en) * 1973-04-04 1974-08-13 Bervy Inc Tank for bulk transport and storage of semisolid materials
US4172538A (en) * 1976-09-02 1979-10-30 Ab Broderna Rickardsson Transport and storage container for fluent or fluidizable material
EP0013591A1 (en) * 1979-01-05 1980-07-23 Mohammed Ruholah Yazdani Kassravi Bulk liquid container
DE8801127U1 (de) * 1988-01-30 1988-03-24 Müller Umwelttechnik GmbH & Co KG, 32816 Schieder-Schwalenberg Zylindrischer Schlammabfuhrbehälter eines Reinigungsfahrzeuges

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0625616A3 (de) * 1993-05-08 1994-12-07 Karl Wiedemann Vorrichtung zur Aufnahme von Schütt- und/oder Schwemmgut
CN111806329A (zh) * 2020-04-17 2020-10-23 李巧庆 一种流态水泥土运输装置
CN111806329B (zh) * 2020-04-17 2023-02-17 李巧庆 一种流态水泥土运输装置

Also Published As

Publication number Publication date
DE4039131A1 (de) 1992-06-11
DE4039131C2 (enrdf_load_stackoverflow) 1992-10-15

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