WO1986000826A1 - Broyeur du type a vis - Google Patents

Broyeur du type a vis Download PDF

Info

Publication number
WO1986000826A1
WO1986000826A1 PCT/SE1984/000268 SE8400268W WO8600826A1 WO 1986000826 A1 WO1986000826 A1 WO 1986000826A1 SE 8400268 W SE8400268 W SE 8400268W WO 8600826 A1 WO8600826 A1 WO 8600826A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
anvils
crusher
outlets
crusher according
Prior art date
Application number
PCT/SE1984/000268
Other languages
English (en)
Inventor
Sven Haglund
Original Assignee
Sven Haglund
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 Sven Haglund filed Critical Sven Haglund
Priority to DE19843490734 priority Critical patent/DE3490734T1/de
Priority to PCT/SE1984/000268 priority patent/WO1986000826A1/fr
Priority to GB08607630A priority patent/GB2177022B/en
Publication of WO1986000826A1 publication Critical patent/WO1986000826A1/fr

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
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/22—Crushing mills with screw-shaped crushing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
    • B65G33/10—Screw or rotary spiral conveyors for fluent solid materials with non-enclosed screws
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods

Definitions

  • the present invention relates to a screw type crusher for comminuting materials between a material feeder in the form of a rotatable screw conveyor, and a number of substantially stationary breaker anvils arranged along the length direc ⁇ tion of the screw.
  • materials means especial- 0 ly waste wood products but also other di si ntegrab le materials, such as peats.
  • the material is fed through two rota ⁇ table screws, the material thereby being comminuted and crushed between the screws before it discharges through the 0 interspaces therebetween.
  • Such crushers consume much energy.
  • they provide crushed materials of irregular size.
  • the wear of the screws has a non-uniform d stribution along the length of the screws.
  • the second main type of screw type crushers to which the pre ⁇ sent invention is related is based upon a co-operation bet ⁇ ween a rotary screw and substantially stationary crusher sur ⁇ faces.
  • An example of such a crusher is disclosed in the U.S. patent specification No. 3,102,694. With such known crushers, 0 the material is fed. into one end of the screw, and then along the screw, thereby being crushed against the substantially stationary crusher surfaces. The material is then discharged at the other end of the screw. With such crushing, material is often liable to get stuck, thereby causing a stop of the 5 . eeding.
  • the object of the present invention is to provide a screw type crusher of the aforesaid kind, which requires less energy consumption than known crushers, and which provides a more efficient feeding and comminuting of the material along the screw and with a reduced risk of getting the material stur-ck.
  • the material anywhere along the entire length of the screw.
  • the material will be clamped at the feeding side of the screw between the screw and the breaker anvils while material is being thrown upwards at the opposite side of the screw.
  • the material is comminuted between the screw and the breaker anvils and is fed at the feeding side of the screw towards one end of the screw, thereby successively discharging comminuted material.
  • the material is then fed at the other side of the screw, which now constitutes the feeding side, towards the opposite end of the screw, the material thereby being successively discharged.
  • Figure 1 is a cross-sectional view showing a screw and a crusher anvil of the screw type crusher.
  • Figure 2 is a front elevational view, partially in sectional view, showing the screw and a number of crusher anvils accor ⁇ ding to Figure 1.
  • Figure 3 is a cross-sectional view si ilar to Figure 1, but at reduced scale, showing the screw type crusher.
  • Figure 4 is a plan view of the screw type crusher shown in Figure 3.
  • the screw type crusher presents a housing 1 which is open at its top, and the bottom of which substantially consists of a plurality (ten of which are shown) of tubes 2 being rectangu ⁇ lar in cross-section. These tubes extend parallel relative to one another, spaced apart at a given, preferably adjustable distance.
  • a crusher anvil 3 (the shape of which will be de ⁇ scribed further below) is welded to the upper side of each tube 2 at the centre thereof.
  • the screw 4 extends above every crusher anvil 3 perpendicular to the tubes 2, and spaced apart from the periphery of the blade 5 at a distance which is preferably adjustable.
  • Each anvil 3 consists of a plate 8 (see Figs. 1 and 2) being welded to a respect ve one of the tubes 2, the plate presen ⁇ ting a recess in the shape of a cylindrical circle segment 9 (see Fig. 1) having the same radius as the periphery of the blade 5.
  • the segment 9 is orientated perpendicularly to the tube 2, the plate 8 being outwardly inclined at each side of the lengthwise extending edges of the segment 9, thereby forming a bevelled surface 10 and 11, respecti ⁇ vely, at each side of the segment 9.
  • the lengthwise edges of the segment 9 are cut obliquely, as seen from a respec ⁇ tive end of two opposite ends of the segment 9, thus forming two slopes 12 and 13 which also intersect the bevelled sur- faces 10 and 11.
  • the reverse side of the slopes 12 and 13 therefore forms a shearing or cutting edge 14 and 15, respec ⁇ tively (see also Fig. 4), consisting of a first portion having the shape of an arc AB of a circle (see Figs. 1-2), which represents half of the arc line of the segment 9, and a second portion having the shape of a straight line BC (see Figs. 1-2), which represents the rear edge of the inclined cut surface 10 and 11, respectively.
  • the tubes 2 and thus also the anvils 3 are suitably mounted in an adjustable spaced relationship relative to one another and relative to the periphery of the blade 5 (as has been indicated above) in order to enable an adjustment to a de ⁇ sired maximum size of the crushed material.
  • the interspaces between the tubes 2 therefore form discharge outlets 16 for crushed material. Said adjustability can readily be done by a man skilled in the art, and thus no instructions there ⁇ for will be needed. Any constructional details for accomp ⁇ lishing said adjustability would be apparent, and need, there ⁇ fore, not be shown or described here.
  • the anvils 3 as well as the screw 4 are uniformly dimensioned along the entire working length of the screw.
  • working length here means the length of the screw between the outermost anvils.
  • the bottom of the housing 1 that is formed by the tubes 2 is pivotable downwardly via a joint 17 by means of two hydraulic cylinders 18, thereby enabling non-crushable material to be removed.
  • Two press plates 19 and 20 are arranged to feed material that is to be com inuted sideways and under pressure towards the screw 4.
  • the press plates are each powered by an indi ⁇ vidual hydraulic cylinder 21, only one of which being shown in Figure 4.
  • the press plates 19 and 20 can either alter ⁇ natively or together feed material toward the screw.
  • Each of the plates 19 and 20 consists, in the embodiment shown, of a sheet having a U-shaped cross-section, the front wall of which extends in parallel to the screw 4 and which consti ⁇ tutes the essential press plate which can be parallelly dis ⁇ placed to or from the screw by said cylinder 21.
  • the press plates 19 and 20 are provided wi h cleaning plates 22 of iron which protrude into the outlets 16 (see Fig. 3).
  • the cleaning plates are intended to scrape the outlets 16 while the plates 19 and 20 are being parallelly displaced.
  • the front edge of the cleaning plates is obliquely cut, suitably by about 45°, which is shown at 22a in Figure 3.
  • the cleaning plates 22 are guided by the elongated apertures 16 but also by elongated apertures 23 between stationary tubes 24 which form extensions of the tubes 2.
  • Each end of the screw 4 has a throttle ring 25 in order to reduce discharge of material via the ends of the screw.
  • Every component of the crusher is preferably manufactured from high resistant steel or the like.
  • the blade 5 and possible also the anvils 3 are, however, preferably made of a hard metal alloy.
  • Material to be disintegrated is introduced from above through the open upper part of the housing 1.
  • the material may be introduced anywhere between the press plates 19 and 20 and over the entire working length of the screw 4.
  • the press plates 19 and 20 feed the material toward the screw 4, which has been given a rotational speed in a first direction by means of the motor 7, depicted by the arrow 26 in Figure 1.
  • the direction of rotation of the blade 5, also corresponding to the arrow 26 in Figure 1, causes the feed direction of the screw to be upwards, as seen in Figure 4, i.e. in a direction opposite to the direc ⁇ tion of the cutting edges 14.
  • the blade 5 Upon reversal of the direc ⁇ tion of rotation of the screw by means of the motor 7, the blade 5 will feed the material at the other side of the screw and in the opposite direction, i.e. downwardly in Fi gure 4.
  • the segments 9 of the anvils extend only over about 60° of the circumference of the screw 4. According to an alternative embodiment some of the segments 9 of the anvils may instead extend over 360°, i.e. the anvil surrounds entirely the screw. Each of the two circular re ⁇ cess edges of the anvils thereby forming an edge for acting upon the material.
  • said surrounding anvils When lowering the bottom of the housing 1 by swinging it about the joint 17 said surrounding anvils of course will remain around the screw, whereas only the split anvils, i.e. those anvils shown in Figure 1, ill be lowered by the bottom of the housing 1.
  • Such surroundings anvils are suitable especially when disintegrating peats and the like material.
  • the tubes 2 together with the anvils 3 form, as mentioned above, a swingable bottom of the housing 1.
  • a spring in the joint 17 at each side of the bottom.
  • one of said springs wi ll be compressed, and then released when the force of the screw is removed.
  • the other spring wi ll be compressed, and so on.
  • a vibrating movement of the bottom wi ll be achieved.
  • substantially stationary anvi ls means not only true stationary anvi ls, but also anvi ls capable of performing small movements, for example shaking movements. These movements should not exceed a sideways displacement of 5-10 mm, because the function of the cylinders 18 may otherwise be di stu rbed .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

Un broyeur broie du matériau entre un dispositif d'alimentation rotatif se présentant sous la forme d'une transporteuse à vis (4) et plusieurs enclumes stationnaires (3). Les enclumes sont disposées suivant une relation espacée réglable les une par rapport aux autres et par rapport à la vis, de sorte que des sorties (16) sont formées entre les enclumes de manière à décharger successivement le matériau broyé pendant l'alimentation en matériau le long de la vis. Le sens de rotation de la vis peut être inversé de sorte que le matériau peut être amené dans n'importe quelle direction le long de la vis pour le broyer successivement et le décharger au travers des sorties (16). Deux plaques de compression (19, 20) sont prévues pour amener sous pression latéralement vers la vis (4) les plaques pourvues de tôle de nettoyage (22) pour racler les sorties (16). Le fond du broyeur peut pivoter de sorte que les enclumes (3) peuvent être retirées, permettant ainsi de décharger du broyeur le matériau non broyable. Chaque extrémité de la vis est pourvue d'un anneau de régulation (25) pour réduire toute décharge de matériau par les extrémités de la vis. Les enclumes (3) sont pourvues d'un bord de coupe (14, 15) de chaque côté de la vis.
PCT/SE1984/000268 1984-07-31 1984-07-31 Broyeur du type a vis WO1986000826A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19843490734 DE3490734T1 (de) 1984-07-31 1984-07-31 Schraubenbrecher
PCT/SE1984/000268 WO1986000826A1 (fr) 1984-07-31 1984-07-31 Broyeur du type a vis
GB08607630A GB2177022B (en) 1984-07-31 1984-07-31 Screw type crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1984/000268 WO1986000826A1 (fr) 1984-07-31 1984-07-31 Broyeur du type a vis

Publications (1)

Publication Number Publication Date
WO1986000826A1 true WO1986000826A1 (fr) 1986-02-13

Family

ID=20354369

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1984/000268 WO1986000826A1 (fr) 1984-07-31 1984-07-31 Broyeur du type a vis

Country Status (3)

Country Link
DE (1) DE3490734T1 (fr)
GB (1) GB2177022B (fr)
WO (1) WO1986000826A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217232A (en) * 1988-04-13 1989-10-25 Duesterloh Gmbh Helical roll crusher
GB2231510A (en) * 1989-02-15 1990-11-21 Onninen Oy Crusher
WO1995011085A1 (fr) * 1993-10-19 1995-04-27 Ballermann, Karin Dispositif servant a desintegrer des debris horticoles
CN108824046A (zh) * 2018-07-04 2018-11-16 湖南图强科技开发有限公司 一种废纸板浸煮绞碎装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910115C3 (de) * 1988-04-13 1994-04-28 Duesterloh Gmbh Walzenbrecher

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656122A (en) * 1951-06-25 1953-10-20 Glanzstoff Ag Tooth arrangement for screw type comminuting devices
US2717742A (en) * 1953-05-29 1955-09-13 Courtaulds Ltd Shredding machine with expansion chamber
US2738932A (en) * 1952-04-12 1956-03-20 Rietz Mfg Co Preliminary disintegrating machine particularly adapted to size reduce wood blocks, rubber tires and the like
US3705644A (en) * 1970-01-23 1972-12-12 Claude Edward Kawchitch Conveyor screw element
US3823878A (en) * 1972-11-17 1974-07-16 Horai Iron Works Shearing crusher
US4272032A (en) * 1979-04-25 1981-06-09 Bengt Hellberg Disintegrator of wooden products
SU869669A1 (ru) * 1980-03-14 1981-10-07 Тамбовский Филиал Всесоюзного Научно-Исследовательского Института Электрификации Сельского Хозяйства Измельчитель материалов

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656122A (en) * 1951-06-25 1953-10-20 Glanzstoff Ag Tooth arrangement for screw type comminuting devices
US2738932A (en) * 1952-04-12 1956-03-20 Rietz Mfg Co Preliminary disintegrating machine particularly adapted to size reduce wood blocks, rubber tires and the like
US2717742A (en) * 1953-05-29 1955-09-13 Courtaulds Ltd Shredding machine with expansion chamber
US3705644A (en) * 1970-01-23 1972-12-12 Claude Edward Kawchitch Conveyor screw element
US3823878A (en) * 1972-11-17 1974-07-16 Horai Iron Works Shearing crusher
US4272032A (en) * 1979-04-25 1981-06-09 Bengt Hellberg Disintegrator of wooden products
SU869669A1 (ru) * 1980-03-14 1981-10-07 Тамбовский Филиал Всесоюзного Научно-Исследовательского Института Электрификации Сельского Хозяйства Измельчитель материалов

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217232A (en) * 1988-04-13 1989-10-25 Duesterloh Gmbh Helical roll crusher
GB2227955A (en) * 1988-04-13 1990-08-15 Duesterloh Gmbh Roll crusher
GB2227955B (en) * 1988-04-13 1992-10-28 Duesterloh Gmbh Roll crusher.
GB2217232B (en) * 1988-04-13 1992-11-25 Duesterloh Gmbh Roll crusher.
GB2231510A (en) * 1989-02-15 1990-11-21 Onninen Oy Crusher
WO1995011085A1 (fr) * 1993-10-19 1995-04-27 Ballermann, Karin Dispositif servant a desintegrer des debris horticoles
CN108824046A (zh) * 2018-07-04 2018-11-16 湖南图强科技开发有限公司 一种废纸板浸煮绞碎装置

Also Published As

Publication number Publication date
GB8607630D0 (en) 1986-04-30
DE3490734T1 (de) 1986-08-07
GB2177022B (en) 1988-06-08
GB2177022A (en) 1987-01-14

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