EP1568477A1 - Müllverdichtungsmaschine - Google Patents

Müllverdichtungsmaschine Download PDF

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Publication number
EP1568477A1
EP1568477A1 EP05003862A EP05003862A EP1568477A1 EP 1568477 A1 EP1568477 A1 EP 1568477A1 EP 05003862 A EP05003862 A EP 05003862A EP 05003862 A EP05003862 A EP 05003862A EP 1568477 A1 EP1568477 A1 EP 1568477A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
wall
pressurized chamber
machine
frame
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Withdrawn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
EP05003862A
Other languages
English (en)
French (fr)
Inventor
Alberto Malaspina
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.)
VM PRESS Srl
Original Assignee
VM PRESS Srl
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 VM PRESS Srl filed Critical VM PRESS Srl
Publication of EP1568477A1 publication Critical patent/EP1568477A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/042—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with casings mounted on a movable carrier, e.g. turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/025—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is transferred into the press chamber by relative movement between a ram and the press chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • B30B11/10—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable intermittently rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
    • B30B9/067—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers with a retractable abutment member closing one end of the press chamber

Definitions

  • the present invention relates to an improvement in a waste-compacting machine, particularly for urban solid waste.
  • Machines which compact urban solid waste by pressing it under very high pressure, thereby causing its humid fraction, which can be recycled for production of fertilizers, to be separated from its dry fraction, which can be recycled as fuel.
  • a waste-compacting machine which comprises three perforated cylinders supported on a revolving drum and arranged to be cyclically filled with the material to be compacted.
  • the drum is driven to rotate by steps so that all the cylinders are successively conveyed in front of a plunger, which penetrates into the cylinder and squeezes the material contained therein, thereby causing the fluid fraction to be drained through the holes.
  • the drained fluid has a high abrasive power, mainly in consideration of the very high pressure reached during squeezing so that, when draining the fluid, a tight seal should be provided at the ends of the perforated cylinder, in order to prevent humid material from being drained therethrough, thereby causing precocious wear of the sealing surfaces.
  • the bottom of the hydraulic cylinder is closed by a very thick cover suited to stand the high pressures to which the cylinder is subjected, so that the above sealing system is very cumbersome in relation to the size of the frame of the machine, as well as very expensive, mainly considering that a perfect seal is required along the perimeter of the bottom.
  • a waste-compacting machine 10 comprises a frame 12 consisting of two longitudinal, side members 12a, 12b joined at their ends by respective cross-pieces 12c, 12d, which pivotally support a drum 14 about longitudinal, horizontal axis A (Fig. 4) therebetween.
  • Drum 14 supports three cylinders 16 which are open at their ends and also have horizontal axes.
  • the cylinders are spaced at equal angles from each other around the axis A of the drum, and are provided with a plurality of radial holes 18.
  • a cylindrical chamber C is defined within each cylinder for receiving the material to be compacted therein.
  • a loading station 20, a squeezing station 22 and an unloading station 24 are arranged in front of the drum and are angularly spaced from each other around the axis A, correspondingly to cylinders 16.
  • the drum is driven to rotate by steps by a motor (not shown), in order to cyclically convey one cylinder in front of the loading station, another cylinder in front of the squeezing station, and the last cylinder in front of the unloading station.
  • Loading station 20 comprises a pressing member 26, or any other suitable feeding device such as, e.g., a screw feeder, which is coaxial to cylinder 16 when the latter is positioned in front of the loading station, and is axially operated for conveying the material from a hopper 28 to the cylinder.
  • a pressing member 26 or any other suitable feeding device such as, e.g., a screw feeder, which is coaxial to cylinder 16 when the latter is positioned in front of the loading station, and is axially operated for conveying the material from a hopper 28 to the cylinder.
  • a screen 30 integral with stationary frame 12 is arranged in front of the base of drum 14 on the side of hopper 28, and is provided with three openings which are aligned to cylinders 16 when they are positioned in front of stations 20, 22, 24.
  • a wall 32 integral with stationary frame 12 is arranged in front of the opposite side of the drum, and is provided with two openings which are aligned to those cylinders 16 which are positioned in front of squeezing station 22 and unloading station 24. On the contrary, wall 32 shuts the end of that cylinder which is arranged in front of loading station 20.
  • Squeezing station 22 comprises a shutting piston 34, which is coaxial to the cylinder positioned in front of such station and sealingly closes one of its ends, as well as a pushing member or plunger 36 that is operable to penetrate into cylinder 16 through the other end, thereby causing the material contained therein to be squeezed and the humid fraction to be drained through holes 18.
  • Plunger 36 is driven by a hydraulic cylinder 38 supported on the frame.
  • Piston 34 is biased against the end of perforated cylinder 16 by a counter-cylinder 39, in which is defined a pressurized chamber 39c that is sealed at one first of its axial ends by a slidable shutter 39b integral with piston 34.
  • the other axial end of the pressurized chamber is abutted against an inner, side wall L of the adjacent cross-piece 12d.
  • a toroidal gasket 41 is received within an annular seat S cut on the bottom of counter-cylinder 39, and sealingly engages a corresponding, smooth annular area R of inner, side wall L.
  • the unloading station comprises a knockout piston 40 which is coaxial to that cylinder positioned in front of such station, and is operable to penetrate cylinder 16 under control of a hydraulic actuator 42 for knocking the compacted material out through that opening cut in the wall on the opposite side with respect to the piston.
  • the knocked-out material is unloaded onto a chute 43 for removal.
  • the drum is driven to rotate by steps of 120° for cyclically subjecting each cylinder to:
  • piston 34 effectively seals the corresponding end of perforated cylinder 16, because the force opposed by counter-cylinder 39 directly acts upon frame 12, which has a structure suited to effectively stand the force of the cylinder without deforming, with reduction of cost and size with respect to the solution with the bottom of cylinder 39 closed by a thick cover.
  • Figs. 7, 8 show an alternative embodiment of the invention, which is particularly advantageous when the material of the frame is difficult to be machined, so that smoothing the area engaged by the toroidal gasket is difficult to be carried out.
  • the parts similar to those described in the previous embodiment will be referenced by adding 100 to their reference numbers.
  • the inner wall of counter-cyinder 139 is provided with a smooth, cylindrical seat 139a adjacent to the base of the cylinder, in which is received a disc P supporting a toroidal gasket 141 along its perimeter, which gasket sealingly engages inner, cylindrical seat 139a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
EP05003862A 2004-02-26 2005-02-23 Müllverdichtungsmaschine Withdrawn EP1568477A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO20040110 ITTO20040110A1 (it) 2004-02-26 2004-02-26 Macchina per la compattazione di rifiuti
ITTO20040110 2004-02-26

Publications (1)

Publication Number Publication Date
EP1568477A1 true EP1568477A1 (de) 2005-08-31

Family

ID=34746738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05003862A Withdrawn EP1568477A1 (de) 2004-02-26 2005-02-23 Müllverdichtungsmaschine

Country Status (2)

Country Link
EP (1) EP1568477A1 (de)
IT (1) ITTO20040110A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020001689A1 (de) * 2018-06-29 2020-01-02 Tu Bergakademie Freiberg Verfahren zur herstellung von presslingen und anordnung zur herstellung von presslingen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263411A (en) * 1991-01-10 1993-11-23 Neyrpic Framatome Mecanique Press for compacting and for treatment of waste
EP0684117A1 (de) * 1994-05-25 1995-11-29 TECNOECO S.r.l. Maschine zum Bearbeiten feuchter Materialien, insbesondere zur Wiederverwendung des Hausmülls
EP1207040A2 (de) * 2000-11-17 2002-05-22 VM Press S.r.l. Presse zur Behandlung von festem städtischem Müll

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263411A (en) * 1991-01-10 1993-11-23 Neyrpic Framatome Mecanique Press for compacting and for treatment of waste
EP0684117A1 (de) * 1994-05-25 1995-11-29 TECNOECO S.r.l. Maschine zum Bearbeiten feuchter Materialien, insbesondere zur Wiederverwendung des Hausmülls
EP1207040A2 (de) * 2000-11-17 2002-05-22 VM Press S.r.l. Presse zur Behandlung von festem städtischem Müll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020001689A1 (de) * 2018-06-29 2020-01-02 Tu Bergakademie Freiberg Verfahren zur herstellung von presslingen und anordnung zur herstellung von presslingen
CN112368138A (zh) * 2018-06-29 2021-02-12 弗赖贝格工业大学 用于制造压坯的方法和用于制造压坯的布置结构
RU2770793C1 (ru) * 2018-06-29 2022-04-21 Ту Бергакадеми Фрайберг Способ и устройство для изготовления пресс-изделий
CN112368138B (zh) * 2018-06-29 2023-12-08 弗赖贝格工业大学 用于制造压坯的方法和用于制造压坯的布置结构

Also Published As

Publication number Publication date
ITTO20040110A1 (it) 2004-05-26

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