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EP0722364A1 - Dispositif servant a desintegrer des debris horticoles - Google Patents

Dispositif servant a desintegrer des debris horticoles

Info

Publication number
EP0722364A1
EP0722364A1 EP94930151A EP94930151A EP0722364A1 EP 0722364 A1 EP0722364 A1 EP 0722364A1 EP 94930151 A EP94930151 A EP 94930151A EP 94930151 A EP94930151 A EP 94930151A EP 0722364 A1 EP0722364 A1 EP 0722364A1
Authority
EP
European Patent Office
Prior art keywords
drum
cutting
cutting edge
worm
forms
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.)
Granted
Application number
EP94930151A
Other languages
German (de)
English (en)
Other versions
EP0722364B1 (fr
Inventor
Karl Johan Klitgaard Frandsen
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.)
BALLERMANN KARIN
Original Assignee
BALLERMANN KARIN
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 BALLERMANN KARIN filed Critical BALLERMANN KARIN
Publication of EP0722364A1 publication Critical patent/EP0722364A1/fr
Application granted granted Critical
Publication of EP0722364B1 publication Critical patent/EP0722364B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/22—Crushing mills with screw-shaped crushing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B02C2201/066—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for garden waste

Definitions

  • the present invention relates to an apparatus for disintegration of waste, in particular garden refuse, or so-called compost mill of the type described in the introductory part of claim 1.
  • the invention relates to a disintegration apparatus or a compost mill of said type - preferably for hobby use.
  • Minor aggregates of this type comprise most often an electric drive engine.
  • the electric driven compost mills are known as very noisy, which especially is caused by the mechanical consturcti- on of the cutting aggegate; but also the high speed of the driving electric motor is a contributury cause to relative noise nuisance, because the cutting aggregate normally is directly coupled to the electric engivne, that is being rotated with a high speed.
  • compost mills often have problems with the capacity, which mostly is due to a bad utilization of the engine effect and a technical insufficient cutting or knife system with plate-shaped knives, which in practice often cause that compost mills are relatively easy to choke for instance by filling too thick branch material into the mill.
  • the invention has for its purpose to provide an apparatus for disintegration of waste, in particular garden refuse of the type described in the introductory part, and which by means of simple provisions makes it possible - without specific noise nuisances - to obtain a quick and effective disintegration of garden refuse - including relatively heavy branches.
  • the apparatus for disintegration or the compost mill according to the invention is distinctive in that the cutting device comprises a drum with an external, worm-shaped projection, which forms a combined material conveyor and cutting part, and a stationary cutting edge, and that the drum is drive-connected with a preferably electric engine via a gear, as the drum is adapted to be rotated with a speed of 300 to 500 rpm, preferably about 400 rpm.
  • the compost mills according to the invention is such provided, that the position of the drum is inclined in relation to the inlet funnel, that said worm-shaped projection of the drum has a bigger pitch at the rearmost part, which forms the material conveyor part, than the pitch of the frontmost part, which forms the cutting part, and that the worm-shaped cutting part at the side facing the cutting edge is provided with a sharp edge.
  • said cutting edge may advantageously be such provided, that it partly surrounds the cutting part of the drum and partly is stretching external in an acute angle inwards around the drum along the cutting part, that is that the cutting edge is stretching arched both in the axial direction of the drum and in said acute angle thereto.
  • the cutting edge - in order to maintain its sharpness - is made from a relatively soft material, for instance non-hardened steel, and is arranged in such a self- sharpening and displacable manner, that the cutting edge, for instance by means of an external eccentric, may be pressed against the worm-shaped cutting part of the drum.
  • the worm-shaped cutting part is apparently provided as a separate drum part, which is adapted to be inserted over and secured to a frontmost narrow end part of the cutting device of said drum.
  • that part of the cutting part which by co-operation with the cutting edge actively assist in the cutting over of the material, is produced of specially hardened knife steel.
  • the cutting device of the drum at the rearmost end, that is opposite the cutting edge is provided with an internal, peripheral toothed rim.
  • the apparatus is such provided that the preferable electric drive engine is provided with a control system being adapted to reverse the drive engine briefly, or that the gear is provided with a control mechanism being adapted to reverse the drum briefly.
  • FIG. 1 shows a side view - partly in section - of an embodiment for a compost mill according to the invention
  • Fig. 2 shows an end view - partly in section - of the composst mill shown in Fig. 1,
  • Fig. 3 shows an enlarged sectional detail view cf. the circle in Fig. 1 of a worm- shaped cutting edge for a compost mill according to the invention
  • Fig. 4 shows a sectional side view of a preferred embodiment for the combined transport and cutting drum for a compost mill according to the invention
  • FIGs. 5-7 show situation views of the cutting system for a compost mill according to the invention
  • Fig. 8 shows a side view - partly in sections - of a preferred embodiment of a compost mill according to the invention.
  • Fig. 9 shows an end view of the compost mill cf. Fig. 8.
  • the compost mill 2 shown in Figs. 1 and 2 comprises an apparatus frame 4 with drive wheels 6, a tubular inlet funnel 8, a cutting aggregate 10 with a combined transport and cutting drum 12 and an electric drive engine 14.
  • the combined transport and cutting drum 12 is shown in more details in Fig. 4, while a engagement area between a worm-shaped cutting device 16 and a stationary cutting edge 18 cf. the circle of Fig. 1 is shown enlarged in Fig. 3.
  • An external also worm- shaped transport part 20 of the drum 12 continues into the worm-shaped cutting device 16.
  • the transport part 20 has - as shown - larger pitch than that of the cutting device 16, so that the material, which is to be disintegrated, for instance a branch 22 (Figs. 5-7), quickly is conveyed to the cutting device 16.
  • the cutting device 16 has smaller pitch than that of the transport part
  • the cutting device 16 is provided in a short, separate drum part 24, which is inserted around a narrow end part 26 of the drum 12 and secured thereto, for instance by means of radial screws 28.
  • the drum 12 is provided with an internal toothed rim 30, in which a toothed drive wheel 32, which is secured to a journal 34 of the drive engine 14, engages.
  • FIG. 3 In fig. 3 is shown how the cutting edge 18, which is stretching half circular both in the axial direction of the drum and perpendicular thereto, is arranged in a displacable manner, so that the cutting edge in an alsol self-sharpening manner - by means of an eccentric 36 - may be lead downwards to engagement with the cutting device 16.
  • the cutting edge 18 is made from a relatively soft material, for instance aluminium, so that the cutting device 16 may be allowed to "adjust" the cutting edge 18, when the latter is displaced a little towards the cutting device 16.
  • FIGs. 8 and 9 A preferred embodiment for compost mill 38 according to the invention is shown in Figs. 8 and 9, where the combined transport and cutting drum 12 is arranged inclined in relation to the also inclined inlet funnel 8, that is that the cutting edge 18, which is placed inside the inlet funnel 8, forms an acute angle (about 50°) in relation to the transport and cutting drum 12.
  • a more effective material transport is obtained towards the active cutting engagement between the cutting device 16 and the cutting edge 18, and the neccessary cutting power may be reduced.
  • a discharge wing 40 is placed, which currently lead the grinded material from a cavity 41 under cutting drum 12 out in the material discharge 42, which by this embodiment consists of a tube with rectangular cross section.
  • the compost mill according to the invention has a so far exceptionally low noise level of about 66 dBA at idle run and about 80 dBA during use.
  • the main aspect of the invention - to provide a both effective and silent compost mill - may primarily be obtained by use of an electric drive engine; but it will - in relation to the the effectiveness of the cutting function - be within the scope of the invention alternatively to use a combustion engine for driving the compost mill according to the invention, so that the latter also advantageously may be used in more remote locations.
  • a further alternative may be, that a compost mill according to the invention - possible with an enlarged cutting drum - could be built on a tractor and be driven either by the power take-off of the tractor or by a hydraulic engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)

Abstract

Dispositif servant à désintégrer des débris horticoles ou broyeur à compost (2) composé d'un entonnoir d'entrée tubulaire (8) servant à introduire les débris à désintégrer, d'un ensemble coupant (10), d'une sortie (15) et d'un moteur d'actionnement (14). L'ensemble coupant (10) comporte au tambour (12) pourvu d'une saillie extérieure hélicoïdale, ce qui constitue une combinaison entre une partie de transport des débris (20) et une partie coupante (16), ainsi qu'un bord coupant fixe (18). Le tambour (12) est accouplé à un moteur électrique (14), de préférence, par l'intermédiaire d'un engrenage et est conçu pour tourner à une vitesse de 300 à 500 tours à la minute, de préférence 400 tours à la minute. Le tambour (12) est soit incliné par rapport à l'entonnoir d'entrée, soit fixé autour d'un axe généralement horizontal et la saillie extérieure hélicoïdale dudit tambour présente un pas au niveau de son extrémité arrière, constituant la partie de transport (20), supérieur au pas de son extrémité avant, constituant la partie coupante (16) pourvue d'un bord aiguisé au niveau du côté opposé au bord coupant (18).
EP94930151A 1993-10-19 1994-10-18 Dispositif servant a desintegrer des debris horticoles Expired - Lifetime EP0722364B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK117993A DK117993D0 (da) 1993-10-19 1993-10-19 Apparat til soenderdeling af affald, navnlig haveaffald
DK1179/93 1993-10-19
PCT/DK1994/000387 WO1995011085A1 (fr) 1993-10-19 1994-10-18 Dispositif servant a desintegrer des debris horticoles

Publications (2)

Publication Number Publication Date
EP0722364A1 true EP0722364A1 (fr) 1996-07-24
EP0722364B1 EP0722364B1 (fr) 1997-03-05

Family

ID=8101880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930151A Expired - Lifetime EP0722364B1 (fr) 1993-10-19 1994-10-18 Dispositif servant a desintegrer des debris horticoles

Country Status (5)

Country Link
EP (1) EP0722364B1 (fr)
AU (1) AU7936794A (fr)
DE (1) DE69401963D1 (fr)
DK (1) DK117993D0 (fr)
WO (1) WO1995011085A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0841313A3 (fr) * 1996-11-06 2000-03-15 Zündapp Gartentechnik GmbH & Co. Entwicklungs KG Procédé pour le traitement des matières végétales, appareil à composter et procédé de compostage des matières végétales en andains

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755836A (en) * 1952-09-03 1956-07-24 Toledo Scale Co Comminuting chopper having a rotatable feed screw
US3760717A (en) * 1970-08-18 1973-09-25 Mil Pac Systems Inc Shredder-compactor
DE3003931A1 (de) * 1980-02-04 1981-08-13 Samix-Waritsch Gmbh, 8205 Kiefersfelden Zerkleinerungsgeraet
DE3490734T1 (de) * 1984-07-31 1986-08-07 Sven Kalmar Haglund Schraubenbrecher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9511085A1 *

Also Published As

Publication number Publication date
AU7936794A (en) 1995-05-08
WO1995011085A1 (fr) 1995-04-27
DE69401963D1 (de) 1997-04-10
EP0722364B1 (fr) 1997-03-05
DK117993D0 (da) 1993-10-19

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