WO2001052993A1 - Outil de traitement - Google Patents

Outil de traitement Download PDF

Info

Publication number
WO2001052993A1
WO2001052993A1 PCT/SE2000/001575 SE0001575W WO0152993A1 WO 2001052993 A1 WO2001052993 A1 WO 2001052993A1 SE 0001575 W SE0001575 W SE 0001575W WO 0152993 A1 WO0152993 A1 WO 0152993A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
disintegrating
processing
processing tool
circumferential surface
Prior art date
Application number
PCT/SE2000/001575
Other languages
English (en)
Inventor
Franz Wroblewski
Original Assignee
Franz Wroblewski
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 Franz Wroblewski filed Critical Franz Wroblewski
Priority to AU2000266040A priority Critical patent/AU2000266040A1/en
Publication of WO2001052993A1 publication Critical patent/WO2001052993A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B07B1/24—Revolving drums with fixed or moving interior agitators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

Definitions

  • the present invention relates to a processing tool for sorting machines of the kind which are intended for processing goods, especially refuse, with a view to sorting said goods and which comprise a rotatable, hori- zontal drum having one or more processing stations provided in succession between an inlet and an outlet at opposite ends of the drum, each of said processing stations comprising one or suitably more such rotatable processing tools which are arranged m connection with openings m the drum wall, an axis of rotation of the respective processing tools being located outside an inner periphery of the drum and processing means on the circumferential surfaces of the processing tools projecting into the drum via said openings, the processing means comprising at least one first thread or feeding thread helically extending along the circumferential surface of the processing tool and at least one second thread or disintegrating thread likewise helically extending along the circumferential surface, more specifically m such a manner that the feeding thread has a relatively small pitch along the circumferential surface and principally serves to feed goods, supplied to the drum, m the longitudinal direction
  • Such machines are subject to the partially conflicting demands of obtaining a high processing capacity, i.e. a great flow of material through the machine, and of obtaining a high degree of processing, i.e. complete
  • the feeding thread has substantially the same height as a disintegrating thread, or at least 80%, preferably 90% and most preferably at least 95% of the height of the disintegrating thread, in the area immediately behind the same, said height gradually decreasing, preferably step- lessly, to 30-70%, preferably 40-60% and most preferably 45-55% or about 50% of the height of the disintegrating thread in the area immediately in front of the next disintegrating thread.
  • the processing tool further has the form of a roller with a circumferential sur- face, which is circular-cylindrical in cross-section, and is provided with four disintegrating threads and one feeding thread which are each formed like a cam which is welded to the circumferential surface and which is rectangular or square in cross-section.
  • the disintegrating threads and the feeding thread further have opposite pitch directions and the directions of rotation of the processing tools are opposed to the direction of rotation of the drum.
  • the circumferential surface of the processing tool could, for instance, have a different cross-sectional shape and also varying cross-sectional shape in its longitudinal direction.
  • the number and the shape of the disintegrating and feeding threads can also vary. They could, for instance, be formed as a truncated cone in cross-section.
  • the feeding thread and the disintegrating threads could also have the same direction of pitch. The essential thing is that they should have different pitches, the disintegrating threads having a greater pitch, and that the feeding thread, seen in the feeding direction of the material, has a pitch di- rected opposite to the direction of rotation of the tool.
  • the directions of rotation of the processing tools could also be the same as the direction of rotation of the drum.
  • the disintegrating threads are inclined m cross-section so that their rear sides form an obtuse angle with the tangent of the circumferential surface m this point, while the front side forms an acute angle with the tangent of the circumferential surface.
  • the angle of inclination can suitably be about 5°.
  • the processing tool is provided with projections or studs m the spaces between the cams of the threads.
  • the studs can be arranged at different intervals and m different patterns. They suitably have substantially the same height above the circumferential surface as the disintegrating threads which, m combination with the decreasing height of the feeding thread between two successive disintegrating threads, means that the studs can easily seize the material and process the same.
  • the studs are particularly suitable to tear plastic bags and the like to pieces so that the material therein can be processed m a satisfactory manner. In order to prevent material from sticking to the studs, the latter have cross-sectional dimensions decreasing outwards and are preferably circular m cross-section with a pointed or conical shape.
  • the studs have different heights above the circumferen- tial surface. More specifically, the processing tool has a first set of studs, which suitably have substantially the same height as the disintegrating thread and serve to disintegrate material, tear bags and the like to pieces, and at least one second set of studs with a preferably 5-15% or about 10% lower height than the disintegrating threads . These second studs mainly serve to prevent large, solid objects from entering the spaces between the first studs, which otherwise could cause stoppage or breakdown. As the second set of studs has a lower height than the first, they do not reduce the capacity of the first set to seize the material, m particular bags and the like.
  • the number and the distribution of the first and the second type of studs, respectively, can be varied m a number of ways. As a rule, there are preferably 3-8 large studs and 2-6 smaller studs m a space defined by two feeding threads and two disintegrating threads.
  • Processing tools according to the invention can be useful m sorting machines of many different kinds. In the embodiments below, they are arranged m a sorting machine having three separate processing stations or sections. In each of these, a special type or size fraction of the material is sorted out.
  • the machine could also comprise only one station or section sorting the material into two separate fractions, namely a first fraction which is discharged from the openings m the circumferential surface of the drum by means of the processing tools and a second fraction which is passed through the entire drum and fed out of an opening m its output end.
  • machines provided with processing tools according to the invention m only one section are very well suited to tear up plastic or paper bags containing refuse and, at an initial stage, open the bags and make their contents accessible to subsequent sorting and/or processing.
  • the machine in this manner as a bag opener, the major part of the bags will be drawn out of the openings in the circumferential surface of the drum by means of the studs and the disintegrating threads of the processing tools and thus be separated from the rest of the refuse .
  • FIG. 1 is a longitudinal section of a sorting machine
  • FIG. 2 is a top plan view of the machine shown in Fig. 1
  • FIG. 3 is a cross-sectional view on a larger scale of the machine according to Figs 1 and 2
  • FIG. 4 is a cross-sectional view of a processing tool according to the invention.
  • FIG. 5 is a side view of a portion of the processing tool in Fig. 4,
  • FIG. 6 is a side view of a portion of a processing tool according to an alternative embodiment
  • FIG. 7 is a side view of a portion of a processing tool according to yet another alternative embodiment having studs with different height above the circumferential surface
  • FIG. 8 is a cross-sectional view of the processing tool in Fig. 7.
  • FIGs 1-3 schematically show a sorting machine for goods, especially for refuse and waste, of prior-art kind.
  • reference numeral 1 generally refers to a rotatable drum, which is supported by a frame generally designated 2 and which is open at both of its opposite ends to form an inlet 3 and an outlet 4 for the material that is to be sorted.
  • processing stations 5, 6, 7 are arranged in succession, each comprising a plurality of rotatable shafts or processing tools 8, whose circumferential surfaces are provided with projecting proces- sing means which, as seen in Figs 4-6, comprise, on the one hand, cams or threads 9, 10 helically extending along the circumferential surface 11 of the shaft and, on the other hand, studs or projections 12 positioned in the spaces between the threads.
  • the number of processing tools 8 in a processing station amounts to six, the processing tools in question suitably being equidistantly distributed along the circumference of the drum 1.
  • Each of the processing tools 8 is mounted in connection with an associated opening 13 in the drum wall 14, the processing means 9, 10, 12 being adapted to cooperate with the edge portions of the drum wall defining said opening.
  • at least one of the two opposite, elongate edge portions of the drum wall defining the opening 13 may be provided with a special wearing rail 15 which is positioned such that the crests of the processing means 9, 10, 12 will pass immediately adjacent to the wearing rail during rotation.
  • the material entering the space between the circum- ferential surface 11 and the wearing rail 14 is processed in such a manner that the material is subjected to a shearing, tearing and/or crushing action between the threads and/or the studs and the wearing rail .
  • one of the threads 9 has a relatively small pitch along the circumferential surface 11 of the shaft 8, whereas the other thread 10 has a considerably greater pitch and extends in a direction opposite to that of the first-mentioned thread.
  • the first thread or the feeding thread 9 thus principally serves to feed material, supplied to the drum, in the longitudinal direction of the drum, whereas the second thread or the disintegrating thread 10 prin- cipally serves to shear or cut the material to pieces against the edge or the rail 15 of the opening.
  • a first conveyor 17 is provided before the inlet 3 and a second conveyor 18 is provided after the outlet 4 for taking care of material having passed through the drum.
  • additional conveyors 19, 20, 21 are provided for taking care of material sorted out at the respective stations.
  • the sorting machine is provided with a fan 22, a collecting device 23 and a belt conveyor 24 arranged for taking care of, for instance, plastic bags m prior-art manner.
  • the conveyor 18 is arranged with a certain inclination relative to the supporting surface and is provided with a second fan assembly 25 at its underside.
  • this fan assembly 25 it is possible to classify into different fractions the components that drop onto the conveyor and have different weight.
  • Figs 4-6 which, m cross- section m Fig. 4 and m a side view m Fig. 5, show a first preferred embodiment of a processing tool according to the invention and in a side view according to Fig. 6 an alternative embodiment of the invention.
  • the process- ing tool is designed as a roller m the form of a circular-cylindrical pipe 26 on the circumferential surface 11 of which processing means are arranged m the form of a feeding thread 9, four disintegrating threads 10 and a number of studs 12 as previously described.
  • the process- mg tool is rotated on an axis of rotation 27 m the sorting machine.
  • the processing tool according to Fig. 4 is intended to be driven m a clockwise direction and, as seen, the feeding thread 9 has a gradually decreasing height above the circumferential surface between two suc- cessive disintegrating threads 10.
  • the feeding thread 9 has substantially the same height as the disintegrating thread m connection with a rear edge 28 thereof and gradually decreases to about 50% of the height of the next disintegrating thread m connection with the front edge 29 thereof. The feeding thread then continues with a full height from its rear edge and sub- sequently gradually decreases again towards the next disintegrating thread.
  • the disintegrating thread 10 is somewhat inclined forwards m the direction of rotation so as to form a somewhat obtuse angle between the rear edge 28 of the disintegrating thread and the tangent to the circumferential surface 11 in this point and in a corresponding manner a somewhat acute angle between the front edge 29 of the disintegrating thread and the tangent to the circumferential surface 11 m this point.
  • the angle of inclination can suitably be about 5°.
  • the studs 12 are circular m cross-section and have at a distance above the circumferential surface cross- sectional dimensions decreasing outwards so that they have a pointed or conical shape.
  • the points of the studs are located substantially at the same height above the circumferential surface as the disintegrating threads 10.
  • the studs can be distributed m optional manner over the circumferential surface of the processing tool, and Figs 4 and 5 show an embodiment m which the studs are distributed diagonally m a space between the cams of the threads, whereas Fig. 6 shows an embodiment m which the studs are placed linearly and parallel with the disintegrating threads 10.
  • Figs 7 and 8 show another alternative embodiment of a processing tool according to the invention.
  • the feeding thread 9 and the disintegrating thread 10 have substantially the same design as m the previous embodiments.
  • the studs between them are of two different types.
  • two rows of three studs 12 each are arranged having substantially the same height as the disintegrating threads in the above-described manner. Between these studs 12, there is also a row of four studs 12' which have a somewhat lower height, preferably 5-15% lower height and most preferably about 10% lower height than the studs 12 and the disintegrating threads 10.
  • studs are drawn in only some of the spaces defined by the feeding threads 9 and the disintegrating threads 10. It should, however, be under- stood that in a real embodiment of the processing tool, all the spaces should be provided with studs in a uniform manner.
  • the low studs 12' should fill out the space between the high studs 12 and prevent large solid objects, such as metal objects, from entering the space between the studs and being seized thereby as they pass the processing wearing rail 15 in the opening 13 of the drum. If this should happen, the object can get stuck between the wearing rail and the studs 12 and/or the disintegrating thread 10 and cause stoppage or breakdown by the wearing rail or the processing means 9, 10, 12 being deformed or by the driving mechanism of the processing tool being damaged.
  • the low studs 12' have substantially the same shape as the high studs 12, i.e. a pointed shape. Since the low studs 12' are not primarily intended to tear up and process the material, they could also have a somewhat more blunt shape.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Sorting Of Articles (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

L'invention concerne un outil de traitement, destiné à des machines de triage, du type conçues pour le traitement de matières, notamment les ordures ménagères, dans le but de trier ces matières; cet outil comprend un tambour rotatif, horizontal, des éléments de traitement (8), agencés en relation avec des ouvertures ménagées dans la paroi du tambour, ainsi que des moyens de traitement (9, 10, 12) situés sur les surfaces périphériques (11) des éléments de traitement saillant à l'intérieur du tambour par le biais desdites ouvertures. Ces moyens de traitement comprennent au moins un filetage d'alimentation (9) s'étendant de manière hélicoïdale le long de la surface périphérique ainsi qu'au moins un filetage de désintégration (10) s'étendant également de manière hélicoïdale le long de la surface périphérique. Le filetage d'alimentation (9) possède une hauteur décroissant graduellement, sur la surface périphérique (11), entre deux points d'intersection successifs avec les filetages de désintégration (10).
PCT/SE2000/001575 2000-01-11 2000-08-14 Outil de traitement WO2001052993A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2000266040A AU2000266040A1 (en) 2000-01-11 2000-08-14 Processing tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0000052-1 2000-01-11
SE0000052A SE515649C2 (sv) 2000-01-11 2000-01-11 Bearbetningsverktyg för sorteringsmaskiner av det slag som är avsedda för bearbetning av gods, i synnerhet sopor

Publications (1)

Publication Number Publication Date
WO2001052993A1 true WO2001052993A1 (fr) 2001-07-26

Family

ID=20278052

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2000/001575 WO2001052993A1 (fr) 2000-01-11 2000-08-14 Outil de traitement

Country Status (3)

Country Link
AU (1) AU2000266040A1 (fr)
SE (1) SE515649C2 (fr)
WO (1) WO2001052993A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185777A1 (fr) 2012-06-12 2013-12-19 Renescience A/S Procédés de traitement de déchets urbains solides (msw) par hydrolyse enzymatique et fermentation microbienne simultanées
EP3453765A1 (fr) 2013-06-12 2019-03-13 Renescience A/S Procédé de traitement de déchets ménagers solides (msw) utilisant une hydrolyse et une fermentation microbiennes et suspension ainsi obtenue
WO2019201765A1 (fr) 2018-04-20 2019-10-24 Renescience A/S Procédé de détermination de composés chimiques dans des déchets
WO2022096406A1 (fr) 2020-11-04 2022-05-12 Renescience A/S Procédé de traitement enzymatique et/ou microbien de déchets comprenant la recirculation d'eau de traitement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949916A (en) * 1986-12-10 1990-08-21 Franz Wroblewski Device for disintegrating material, such as waste

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949916A (en) * 1986-12-10 1990-08-21 Franz Wroblewski Device for disintegrating material, such as waste

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013185777A1 (fr) 2012-06-12 2013-12-19 Renescience A/S Procédés de traitement de déchets urbains solides (msw) par hydrolyse enzymatique et fermentation microbienne simultanées
WO2013185778A1 (fr) 2012-06-12 2013-12-19 Renescience A/S Procédés et compositions de production de biométhane
EP3453765A1 (fr) 2013-06-12 2019-03-13 Renescience A/S Procédé de traitement de déchets ménagers solides (msw) utilisant une hydrolyse et une fermentation microbiennes et suspension ainsi obtenue
WO2019201765A1 (fr) 2018-04-20 2019-10-24 Renescience A/S Procédé de détermination de composés chimiques dans des déchets
WO2022096406A1 (fr) 2020-11-04 2022-05-12 Renescience A/S Procédé de traitement enzymatique et/ou microbien de déchets comprenant la recirculation d'eau de traitement

Also Published As

Publication number Publication date
SE0000052D0 (sv) 2000-01-11
AU2000266040A1 (en) 2001-07-31
SE515649C2 (sv) 2001-09-17
SE0000052L (sv) 2001-07-12

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