WO1997041957A1 - A disintegrating machine - Google Patents
A disintegrating machine Download PDFInfo
- Publication number
- WO1997041957A1 WO1997041957A1 PCT/SE1997/000741 SE9700741W WO9741957A1 WO 1997041957 A1 WO1997041957 A1 WO 1997041957A1 SE 9700741 W SE9700741 W SE 9700741W WO 9741957 A1 WO9741957 A1 WO 9741957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- machine according
- arrangement
- movable
- parts
- counteredge
- Prior art date
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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
-
- 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
Definitions
- This invention is related to a disintegrating machine of the kind comprising a casing and at least one element rotatably ar ⁇ ranged in the casing for disintegration of material, the casing comp ⁇ sing at least one wall portion extending along the rotatable element.
- the casing is rigidly de ⁇ signed and it comprises on both sides of the rotatable element stationary wall portions extending along the element.
- At least one counteredge arrangement is provided on such a stationary wall portion and this counteredge arrangement comprises a cutting member which is displaceable relative to the stationary wall portion in order to adjust the position of the cutting member relative to the rotatable element.
- overload situations occur at times as a consequence of supply to the machine of an exces ⁇ sive amount of material or material difficult to disintegrate.
- a drive arrangement for the rotatable elements occurring com ⁇ prises suitably an overload function causing reversal of the direction of rotation on overload.
- the object of this invention is to obtain a machine designed so that it may be adapted with respect to the current operational conditions.
- the machine in overload situations should be capable of adapting itself in order to simplify passage of material through the machine or other ⁇ wise simplify for the machine to deliberate itself from material present therein.
- the wall portion being at least partially formed by a device movably arranged relative to the rest of the casing and this device being movable between a first position, in which the device is located in a normal operational position relative to the rotatable ele ⁇ ment, and a second position, in which the device is moved away from the rotatable element.
- the movable device is, however, intended to involve, in its second position, such an opening of the casing that hindering material or material difficult to disintegrate may be fed out of the machine through the opening deliberated by means of the movable device.
- a counter edge arrange- ment is provided on the movable device and adapted to co ⁇ operate with the rotatable element for disintegration of the material.
- the counteredge arrangement will accom ⁇ pany the movable device in its movement between the two positions and be moved towards the rotatable element and away therefrom.
- a locating arrangement is resilient in order to allow the movable device to move away from its first position when forces exerted on the device exceed a predetermined value. In this way it is achieved that unacceptable forces will not be exerted on the movable device and the counteredge arrangement possibly provided thereon.
- the movable device comprises at least two movable parts. It is preferred that the two parts are in engagement with each other by means of engagement members at least when they are in the first position.
- the movable device In case the movable device is designed so that it causes, in its position moved away from the rotatable element, a substantial opening sidewardly relative to the axis of rotation of the rotat ⁇ able element, it is possible to design the machine so that the movable element may be taken out of the machine through an opening formed by the movable device in its second position.
- Fig 1 is a view of the machine according to the invention viewed from above,
- Fig 2 is a view similar to Fig 1 but with two upper first rotatable disintegrating elements removed so that a second rotatable disintegrating element present there ⁇ under is clearly apparent (the latter element is not drawn in Fig 1 ),
- Fig 3 is a partially cut and partially diagrammatical view in a section transverse to the axes of rotation of the rotat ⁇ ably arranged elements
- Fig 4 is a view similar to Fig 3 but illustrating parts con ⁇ tained in a movable device in a somewhat different position
- Fig 5 is a view similar to Figs 3 and 4 but illustrating parts contained in the movable device in an opening posi ⁇ tion,
- Fig 6 is an enlarged view of details in Fig 4,
- Fig 7 is a view from above of the rotatable element shown to the right in Fig 1 and the co-ordination thereof with a part contained in the movable device
- Fig 8 is a view of the latter part viewed in isolation accord ⁇ ing to the arrow VIII-VIII,
- Fig 9 is a view similar to Fig 3 of a somewhat modified embodiment
- Fig 10 is a view similar to Figs 3 and 9 of a further variant.
- Fig 11 is a view of a yet another variant.
- the device according to the invention is particularly suitable for coarse or unsorted material of the most varying kinds but may also be used for other disintegrating operations.
- the machine comprises a casing generally denoted 1.
- This casing comprises at the top (Fig 3) an opening 2 for supply of material to be disintegrated.
- the casing comprises at the bottom an opening 3 for discharge of disintegrated material.
- the casing 1 comprises gable walls and side walls collectively designated 4 and 5 respectively.
- three elements 6, 7, 8 are rotatably arranged in the casing.
- the machine also comprises a frame for supporting the elements.
- This frame and the casing 1 are integrated in a suitable manner.
- the frame may, as indicated in Fig 3, comprise a frame erected in a conventional manner by beams 9, covering wall portions being attached to these beams, namely gable wall portions 10 and side wall portions generally denoted 1 1 in Fig 3, only one side wall portion appearing in Fig 3.
- the frame described and the wall portions form the casing 1.
- the three rotatable elements 6, 7, 8 are conceived to have the character of rolls or shafts and are at their ends rotatably supported in the gables 4 and rotatably driven by suitable motors, of which those for the elements 6, 7 appear in Fig 1 and are denoted 12 and 13 respectively therein.
- the rotatable elements 6, 7, 8 could for instance be adapted to operate mutually for disintegrating purposes in the manner which is characterizing for the inventive aspect according to the European patent No. 81 539. However, it is pointed out that this is not absolutely necessary for the present invention.
- the two upper elements 6, 7 could for instance operate according to the principle of the just mentioned European patent whereas the remaining element 8 could be of a different configuration or otherwise all rotatable elements could be designed to operate according to other disintegrating principles.
- the rotatable elements 6-8 do not necessarily have to have processing members in the forms of threads or the like but they could instead have other processing members, such as beating members, discs etc.
- the two upper rolls 6, 7 form a disintegrating zone 14 between each other and this preferably by the rolls being caused to rotate so that their peripherical portions move downwardly in the processing zone 14.
- the directions of rotation in question for the rolls are, accordingly, indicated by the arrows 15 and 16 respectively in Fig 3.
- the further roll 8 is in the example arranged in the area under the disintegrating zone 14 and more specifically such that the roll 8 forms, with each of the two upper rolls 6, 7, a common disintegrating zone 17 and 18 respectively.
- the roll 8 is rotat- able in opposite directions indicated by the arrows 19, 20.
- the two upper rolls 6, 7 are designed to subject material present in the disintegration zone 14 for actuation in substan- tially opposite directions along the axes of rotation of the rolls 6, 7.
- the rolls 6, 7 present threads 21 , 22 arranged on central cores. These threads 21 , 22 are blade shaped and to obtain a good disintegrating function they slope in opposite directions.
- the directions of rotation and directions of threads of the rolls 6, 7 are chosen such that the screw threads 21 , 22 will tend to actuate material present in the disintegrating zone 14 in opposite directions.
- the rolls 6, 7 are driven with opposite directions of rotation whereas the threads 21 and 22 on the rolls have the same thread direction.
- Other variants are, however, also applicable. For instance, the rolls could be driven in the same direction of rotation but with a differential number of revolutions, still with the same thread direction on the threads 21 , 22.
- the lower roll 8 is in the example designed to operate in accordance with the principle according to the European patent No. 81 539.
- the roll 8 presents a core and threads 22, 23 arranged thereon.
- the threads are here constituted by two different types having a markedly differing pitch.
- the corresponding is due for the thread denoted 23 although it will give rise to comparatively small axial force component on the material under disintegration as a consequence of the very large pitch thereof.
- the roll 8 On rotation of the roll 8 in the direction of the arrow 20, the roll 8 will co-operate for disintegration in the zone 18 between itself and the roll denoted 7 since the threads on the rolls 7 and 8 with the mentioned directions of rotation (arrows 20 and 16) will tend to subject material present in the disintegrating zone 18 and being under disintegration for force actuation in opposite directions along the rolls.
- the corresponding function in the disintegration zone 17 is obtained.
- short thread sections 25 and 26 respec ⁇ tively, which are directed oppositely relative to the threads 21 , 22 on the rolls, are arranged at the opposite ends of the rolls 6, 7. These thread sections 25, 26 have the purpose to avoid stagnation of material at the opposite ends of the rolls 6, 7 as a consequence of the different feeding directions, in which the threads 21 and 22 are acting on the material under disintegra- tion.
- the wall portion 11 appearing in Fig 3 is at least partially formed by a device generally denoted 27 and movably arranged relative to the casing 1 for the rest.
- This device 27 is movable between a first position, which appears from Fig 3 and in which the device is present in a normal operational position relative to the rolls 7, 8, and a second position appearing from Fig 5, in which the device 27 is moved away from the rolls 7, 8.
- the movable device 27 has a wall like character in the sense that the device serves for restriction sidewardly of a space present internally in the casing 1 , in which space disintegration is intended to occur and in which the rolls 6-8 are arranged.
- a counteredge arrangement generally denoted 28 is provided on the movable device 27 and adapted to co-operate with the roll 8 for disintegration of material. As appears from a compari ⁇ son with Fig 5, the counteredge arrangement 28 is adapted to accompany the device 27 in its movement to the position illustrated in Fig 5 and be moved away from the roll 8 during such movement.
- Fig 4 illustrates that the movable device 27 has been read ⁇ justed somewhat relative to the position according to Fig 3 so that the counteredge arrangement 28 has been moved away from the periphery of the roll 8. This periphery is formed by the most extremely located portions of the thread formations 23, 24.
- the movable device 27 is connected to an arrangement gen- erally denoted 29 for locating the device in its first position according to Fig 3.
- the locating arrangement 29 is preferably resilient in order to allow the movable device 27 to be moved away from its first position when the forces exerted on the device exceed a predetermined value.
- the locating arrangement 29 involves at least one power exerting member.
- This may for instance have the character of a member variable in length and acting between a stationary point 30 relative to the casing 1 and a point 31 on the movable device 27.
- An advantageous example of power exert ⁇ ing members is a piston cylinder mechanism capable of operat ⁇ ing, in addition, resiliently in the manner just described.
- the locating arrangement 29 is adapted to displace the mov- able device 27 into a position, in which the device 27 has been moved away from the rolls 7, 8 relative to the first position of the device 27.
- the movable device 27 comprises in the example two movable parts 32, 33.
- the two parts 32, 33 are in engagement with each other by means of engagement members 34, 35 at least when the parts are in the first position according to Fig 3.
- the counteredge arrangement 28 is provided on one of the parts 32, 33.
- the counteredge arrangement 28 is provided on the part denoted 33.
- the locating arrangement 29 acts upon one of the parts 32, 33 for direct actuation thereof whereas the remaining part is arranged to be actuated indirectly via the engagement members 34, 35.
- the locating arrangement 29 acts on the part 33, on which also the counteredge arrangement 28 is located.
- This part 33 forms in the example a lower part of the movable device 27 viewed in its entirety.
- At least one of and suitably both of the parts 32, 33 in the movable device 27 are pivotably movable about axes 36 and 37 respectively.
- the pivot axis 36 of the upper part 32 is located at a level above the counteredge arrangement 28.
- the engagement members comprise (compare also with Fig 5) at least one projection 34 on one of the parts and at least one recess 35, in which the projection is receivable, on the second of the parts.
- the projection/recess 34, 35 involves a meshing engagement between the parts.
- Fig 6 illustrates somewhat more clearly how the counteredge arrangement 28 is constructed, adjustable and attachable.
- a cutting member 38 is secured to a base part 39 by screws.
- This base part 39 is secured relative to the frame of the part 33 by means of a bolt.
- the recess 35 is formed by means of two pieces 41 , 42 secured to the frame of the part 33 by screws.
- the piece 41 abuts against a shoulder on the frame of the part 33 and forms in its turn a support for the base part 39.
- spacers may be put in between the base part 39 and the piece 41 to control the projection of the cutting member 38 from the part 33.
- the bolt 40 is, in order to enable such control, sidewardly displaceably received in slots 43.
- Tensioning means, here in the form of nuts 44, associated to the bolt 40 must of course be released before the spacers may be inserted and removed respectively.
- One 32 of the parts has its pivot axis 36 located considerably higher than the pivot axis 37 of the other part 33.
- the parts 32, 33 are pivoted to its second position according to Fig 5, they are pivoted in opposite directions about their axes so that the engagement members 34, 35 disengage.
- the locating arrangement 29 will in the example maintain its engagement with the part 33 carrying the counteredge arrangement 28 whereas the second part 32 must be pivoted upwardly to the position according to Fig 5 by other means. In this position the counteredge arrangement 28 is conveniently accessible for replacement of the cutting members and the carrying out of other possibly required service.
- the part 32 could be associated to a locating arrangement of its own for displacement of the part 32, in particular to its opened position illustrated in Fig 5.
- the axis 36 could be rigidly connected to the part 32 and associated with a power exerting arrangement forming said locating arrangement for pivoting the part 32.
- the part 33 could be arranged to be imparted its pivoting movement via the axis 37 which then would be rigidly con ⁇ nected to the part 33, said axis 37 then having, in its turn, to be subjected to actuation via a suitable power exerting member.
- the members 45 are in this example formed by projecting ribs, which are located with their edges projecting out from the part 32 relatively close to the periphery of the roll 7.
- the ribs 45 extend in an arc shaped configuration in correspondence to the circumference of the roll 7.
- the ribs 45 are directed substantially perpendicularly to the axis of rotation of the roll 7 but they could also be inclined.
- An important feature of the members or ribs 45 is that they should co-operate with the threads of the roll 7 for disintegration purposes when the threads wander past the members or ribs.
- the movable device 27 comprises wall forming portions located at a level above the counteredge arrangement 28.
- the device 27 is adjusted for conventional operation to the position according to Fig 3 under influence of the locating arrangement 29.
- This position is defined by means of a stop member not shown, which delimits the pivoting movement of the part 33 in a direction towards the roll 8.
- the device 27 may resiliently back away in case the force influence on the device 27 would exceed a certain predetermined level.
- the locating arrangement 29 is intended to have an elastic character so that when the force influence has fallen under said level, the device 27 and accordingly also the counteredge arrangement 28 are moved back to the normal operational position according to Fig 3. When there is a need for removing large undesirable objects, scrap etc.
- the part 32 is pivoted to the opened position according to Fig 5 by means of the locating ar ⁇ rangement 29 and, in addition, the part 32 is pivoted to its opened position.
- the rolls may then be driven, possibly by reversal, such that said objects or scrap may be thrown out of the machine.
- service and maintenance personnel may conveniently get access to the interior of the machine and, of course, particularly the counter- edge arrangement 28.
- Fig 9 corresponds generally to the previously described embodiment with the exception that here the counteredge arrangement 28 is connected to the part 32 in- stead of to the part 33.
- the locating arrangement 29 still acts on the part 33 whereas the counter- edge arrangement 28 is provided on the second part.
- the engagement members 34, 35 are reversed such that the projection 34 is designed on the part 33 whereas the recess 35 occurs on the part 32.
- the movable wall like device 27 is in Fig 10 formed by a single part 32, on which the counteredge arrangement 28 is mounted.
- the part 32 comprises under the counteredge arrangement 28 a lower wall section 47 located adjacent to the roll 8.
- the locating arrangement 29 acts between the frame of the machine and the part 32.
- the locating arrangement 29 in the form of a piston cylinder mechanism or the like serves for manoeuvring the part 32 and, accordingly, the counteredge arrangement 28 between its operational position and an open position corresponding to the position assumed by part 32 in Fig 5.
- Fig 11 illustrates an embodiment substantially corre- sponding to the embodiment according to Figs 1-8 but as far as the part 33 presenting the counteredge arrangement 28 is concerned it is here indicated that the part 33 may be pivoted entirely freely 360° if the roll 8 would not be in the way. More specifically, the part 33 is here intended to be put into its pivoting movement by means of the axis 37, which is under the influence of a suitable power exerting arrangement. It also appears from Fig 11 that the part 32 also here comprises the previously described members or ribs 45 for forming a disinte ⁇ gration zone between itself and the roll 7.
- the invention is of course not only restricted to the embodiment examples discussed above. Thus, a number of modifications may be made within the scope of the basic idea behind the invention. For instance it is pointed out that it is not necessary that the movable device 27 is formed by one or more pivotably movable parts. Instead it would be possible to design one or more of said parts as movable in a displacement movement which could be entirely straight, arcuate or otherwise adjusted to the circumstances. In case of a movable device formed by two parts 32, 33, one of these parts could, for instance, be pivotably movable whereas the other would be movable in translation or otherwise displaceable. Also other modifications are realized by men skilled within this art.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Adjustment And Processing Of Grains (AREA)
- Soil Working Implements (AREA)
- Crushing And Pulverization Processes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97922264A EP1047500A1 (en) | 1996-05-06 | 1997-05-02 | A disintegrating machine |
JP9539843A JP2000509646A (en) | 1996-05-06 | 1997-05-02 | Crushing machine |
AU27980/97A AU2798097A (en) | 1996-05-06 | 1997-05-02 | A disintegrating machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9601732-2 | 1996-05-06 | ||
SE9601732A SE517351C2 (en) | 1996-05-06 | 1996-05-06 | Cutting Machine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997041957A1 true WO1997041957A1 (en) | 1997-11-13 |
Family
ID=20402477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1997/000741 WO1997041957A1 (en) | 1996-05-06 | 1997-05-02 | A disintegrating machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1047500A1 (en) |
JP (1) | JP2000509646A (en) |
AU (1) | AU2798097A (en) |
SE (1) | SE517351C2 (en) |
WO (1) | WO1997041957A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010032037A1 (en) * | 2008-09-19 | 2010-03-25 | Mmd Design & Consultancy Limited | Mineral sizer |
US11484886B2 (en) | 2018-05-23 | 2022-11-01 | Vermeer Manufacturing Company | Shredder for comminuting bulk material |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980000128A1 (en) * | 1978-07-05 | 1980-02-07 | Metal Box Co Ltd | Shredding machines |
US5102059A (en) * | 1989-08-07 | 1992-04-07 | Ab Sandarne Industrimaskiner | Disintergrating apparatus |
-
1996
- 1996-05-06 SE SE9601732A patent/SE517351C2/en not_active IP Right Cessation
-
1997
- 1997-05-02 AU AU27980/97A patent/AU2798097A/en not_active Abandoned
- 1997-05-02 JP JP9539843A patent/JP2000509646A/en active Pending
- 1997-05-02 WO PCT/SE1997/000741 patent/WO1997041957A1/en not_active Application Discontinuation
- 1997-05-02 EP EP97922264A patent/EP1047500A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980000128A1 (en) * | 1978-07-05 | 1980-02-07 | Metal Box Co Ltd | Shredding machines |
US5102059A (en) * | 1989-08-07 | 1992-04-07 | Ab Sandarne Industrimaskiner | Disintergrating apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010032037A1 (en) * | 2008-09-19 | 2010-03-25 | Mmd Design & Consultancy Limited | Mineral sizer |
US11484886B2 (en) | 2018-05-23 | 2022-11-01 | Vermeer Manufacturing Company | Shredder for comminuting bulk material |
US11819856B2 (en) | 2018-05-23 | 2023-11-21 | Vermeer Manufacturing Company | Shredder for comminuting bulk material |
Also Published As
Publication number | Publication date |
---|---|
AU2798097A (en) | 1997-11-26 |
JP2000509646A (en) | 2000-08-02 |
SE9601732D0 (en) | 1996-05-06 |
SE517351C2 (en) | 2002-05-28 |
EP1047500A1 (en) | 2000-11-02 |
SE9601732L (en) | 1997-11-07 |
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