CA2151436C - A drum chipper apparatus - Google Patents
A drum chipper apparatus Download PDFInfo
- Publication number
- CA2151436C CA2151436C CA 2151436 CA2151436A CA2151436C CA 2151436 C CA2151436 C CA 2151436C CA 2151436 CA2151436 CA 2151436 CA 2151436 A CA2151436 A CA 2151436A CA 2151436 C CA2151436 C CA 2151436C
- Authority
- CA
- Canada
- Prior art keywords
- sieve
- accordance
- drum
- layers
- 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.)
- Expired - Fee Related
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
- B02C18/14—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
- 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
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C18/2225—Feed means
- B02C18/225—Feed means of conveyor belt and cooperating roller type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
- B02C21/02—Transportable disintegrating plant
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Crushing And Pulverization Processes (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The drum chipper apparatus includes a frame (7), feed device (4, 5), a drum (2) equipped with blades and rotating devices, a counter-blade (8), a sieve (3) located beneath the drum (2), and a chip conveyor located beneath that. The sieve (3) includes two sieve layers (3.1, 3.2) on top of one another and devices (9) for moving them in relation to one another in order to adjust the opening size.
Description
21514~~
A DRUM CHIPPER APPARATUS
The object of the invention is a drum chipper apparatus, which includes a frame, feed device, a drum equipped with blades and its rotating devices, a counter-blade, a sieve set beneath the drum, and a woodchip thrower located beneath the sieve.
A problem in known apparatuses is the blocking of the sieve and as a result its cleaning and the difficulty of handling several sieves of differing sizes. Different sizes of chips are manufac-tured for different purposes and this is achieved in present apparatuses by changing the sieve in the chipper to one with a different mesh size. In present apparatuses the sieve must often be totally removed and the chipper opened, if these clog.
The intention of the invention is to remove the aforementioned defects and to create an easily used drum chipper apparatus with a changeable chip particle size. The characteristic features of the invention are presented in the accompanying Patent Claims.
In practice, a two-part sieve with an adjustable mesh size makes a good device for opening a possible blockage. Here the chip thrower must be arranged to create a certain degree of vacuum, so that for its part it keeps the sieve clean.
In what follows, the invention is described by reference to the accompanying figures, which show one drum chipper apparatus and its details in accordance with the invention.
Figure 1 shows a drum chipper apparatus in accordance with the invention located on a truck.
Figure 2 shows the construction of the drum chipper in greater detail.
Figure 3 shows a double-level sieve in detail.
Figure 4 shows an improved sieve structure.
In Figure 1 the drum chipper apparatus is marked schematically 1 and is installed on truck 11. The basic components of the apparatus are the drum 2, sieve 3, feed device 4 together with pressure roller 5, chip thrower 6, and frame 7. From the chip thrower the chips enter transfer pipe 8, which throws the chips to an intermediate storage place. The apparatus includes a loading device 12, by means of which timber is fed to the conveyor 4.
The drum chipper apparatus is as such conventional, except for the sieve structure. The feed device pushes the timber pressed by the pressure roller onto the counter-blade 8' and against the drum 2. The blades cut the timber into smaller pieces in a known manner and they enter the sieve 3, the construction of which is described in greater detail later. The chip thrower 6 beneath the sieve is in the form of a centrifugal fan and causes a considerable vacuum in the lower surface of the sieve, which promotes the passage of the chips. The rotor 6.1 of the chip thrower is rotated by hydraulic motor 6.2, the revolutions of which per minute can be adjusted. The chip thrower includes pressure sensor, an the basis of the data from which it is possible to note t:he possible blockage of the chipper. This makes possible immediate and even automatic repair. The under-neath of the sieve is protected by the frame 7 and connected as well as possible 'to the chip thrower, which makes possible vacuum in this space . There is a service manhole 10 on top of the drum.
The sieve 3 is composed of two layers 3 .1 and 3 . 2 , the upper of which is locked to the frame 7 and the lower moves beneath it, driven by hydraulic operating device 9. There are slide members between the sieve layers, which hold them together and the sieves can be changed as a single package, if required. An advantageous mesh size of the sieve layers is 100 mm x 60 mm. Generally the ratio of the length to the breadth is most advantageously 1,3 - 2,0. Two sieve layers set one on top of the other can then form openings of different size over a large area.
The layers of the sieve are half the thickness of a conventional sieve, in which case two plate-like sieve layers will fit in to the groove 7.1 intended for an original single sieve, as shown in Figure 3. The sieve layers 3.1 and 3.2 are substantially similar, though the attachment devices differ somewhat. There are slide members between the sieve layers, which limit the mutual movement between the sieves.
On the basis of test runs, the sieve construction has been improved in accordance with Figure 4. The same reference numbers as in Figure 3 are used for corresponding components. in this case there is the addition of filler pieces 3.10 welded to the lateral crossbars of the sieve layer 3.1, which raise them to essentially the same level as the rest of the sieve surface. It is true that in this case a little of the maximum size of the opening is lost, as the lower layer is no longer able to go completely under the upper layer. With a larder opening size the filler pieces 3.10 are driven next to the crossbars of the upper layer.
A drum chipper apparatus in accordance with the invention makes it possible to adapt the chips to the quality demands of the buyer. The largest free opening ( 100 x 60 mm) makes possible the harvesting of large particle energy wood. By adjusting the opening to a smaller size the chipper is made ready to produce small-particle chips, which are suitable for instance to trans-portation by a screw conveyor. If a possible fault develops, the sieve layers can be driven backwards and forwards in relation to one another and the vacuum beneath the sieve can be increased.
In most cases, the blackage is then opened a.nd valuable working time is not lost cleaning the apparatus.
Even though it is most advantageous to use a centrifugal fan type chip thrower of the type in the accompanying example, it is possible to use a conventional conveyor belt beneath the sieve, especially in factory conditions.
A DRUM CHIPPER APPARATUS
The object of the invention is a drum chipper apparatus, which includes a frame, feed device, a drum equipped with blades and its rotating devices, a counter-blade, a sieve set beneath the drum, and a woodchip thrower located beneath the sieve.
A problem in known apparatuses is the blocking of the sieve and as a result its cleaning and the difficulty of handling several sieves of differing sizes. Different sizes of chips are manufac-tured for different purposes and this is achieved in present apparatuses by changing the sieve in the chipper to one with a different mesh size. In present apparatuses the sieve must often be totally removed and the chipper opened, if these clog.
The intention of the invention is to remove the aforementioned defects and to create an easily used drum chipper apparatus with a changeable chip particle size. The characteristic features of the invention are presented in the accompanying Patent Claims.
In practice, a two-part sieve with an adjustable mesh size makes a good device for opening a possible blockage. Here the chip thrower must be arranged to create a certain degree of vacuum, so that for its part it keeps the sieve clean.
In what follows, the invention is described by reference to the accompanying figures, which show one drum chipper apparatus and its details in accordance with the invention.
Figure 1 shows a drum chipper apparatus in accordance with the invention located on a truck.
Figure 2 shows the construction of the drum chipper in greater detail.
Figure 3 shows a double-level sieve in detail.
Figure 4 shows an improved sieve structure.
In Figure 1 the drum chipper apparatus is marked schematically 1 and is installed on truck 11. The basic components of the apparatus are the drum 2, sieve 3, feed device 4 together with pressure roller 5, chip thrower 6, and frame 7. From the chip thrower the chips enter transfer pipe 8, which throws the chips to an intermediate storage place. The apparatus includes a loading device 12, by means of which timber is fed to the conveyor 4.
The drum chipper apparatus is as such conventional, except for the sieve structure. The feed device pushes the timber pressed by the pressure roller onto the counter-blade 8' and against the drum 2. The blades cut the timber into smaller pieces in a known manner and they enter the sieve 3, the construction of which is described in greater detail later. The chip thrower 6 beneath the sieve is in the form of a centrifugal fan and causes a considerable vacuum in the lower surface of the sieve, which promotes the passage of the chips. The rotor 6.1 of the chip thrower is rotated by hydraulic motor 6.2, the revolutions of which per minute can be adjusted. The chip thrower includes pressure sensor, an the basis of the data from which it is possible to note t:he possible blockage of the chipper. This makes possible immediate and even automatic repair. The under-neath of the sieve is protected by the frame 7 and connected as well as possible 'to the chip thrower, which makes possible vacuum in this space . There is a service manhole 10 on top of the drum.
The sieve 3 is composed of two layers 3 .1 and 3 . 2 , the upper of which is locked to the frame 7 and the lower moves beneath it, driven by hydraulic operating device 9. There are slide members between the sieve layers, which hold them together and the sieves can be changed as a single package, if required. An advantageous mesh size of the sieve layers is 100 mm x 60 mm. Generally the ratio of the length to the breadth is most advantageously 1,3 - 2,0. Two sieve layers set one on top of the other can then form openings of different size over a large area.
The layers of the sieve are half the thickness of a conventional sieve, in which case two plate-like sieve layers will fit in to the groove 7.1 intended for an original single sieve, as shown in Figure 3. The sieve layers 3.1 and 3.2 are substantially similar, though the attachment devices differ somewhat. There are slide members between the sieve layers, which limit the mutual movement between the sieves.
On the basis of test runs, the sieve construction has been improved in accordance with Figure 4. The same reference numbers as in Figure 3 are used for corresponding components. in this case there is the addition of filler pieces 3.10 welded to the lateral crossbars of the sieve layer 3.1, which raise them to essentially the same level as the rest of the sieve surface. It is true that in this case a little of the maximum size of the opening is lost, as the lower layer is no longer able to go completely under the upper layer. With a larder opening size the filler pieces 3.10 are driven next to the crossbars of the upper layer.
A drum chipper apparatus in accordance with the invention makes it possible to adapt the chips to the quality demands of the buyer. The largest free opening ( 100 x 60 mm) makes possible the harvesting of large particle energy wood. By adjusting the opening to a smaller size the chipper is made ready to produce small-particle chips, which are suitable for instance to trans-portation by a screw conveyor. If a possible fault develops, the sieve layers can be driven backwards and forwards in relation to one another and the vacuum beneath the sieve can be increased.
In most cases, the blackage is then opened a.nd valuable working time is not lost cleaning the apparatus.
Even though it is most advantageous to use a centrifugal fan type chip thrower of the type in the accompanying example, it is possible to use a conventional conveyor belt beneath the sieve, especially in factory conditions.
Claims (7)
1. A drum chipper apparatus which includes feed means, a drum equipped with blades and rotating means, a counter-blade, a sieve frame, a sieve located beneath the drum, and a chip conveyor located beneath the sieve, characterized in that the sieve includes two sieve layers overlying one another and means for moving the layers in relation to one another in order to adjust the opening size of the sieve.
2. An apparatus in accordance with claim 1, characterized in that the chip conveyor is a centrifugal fan type chips thrower which includes means for adjusting the rotational speed of its rotor and wherein the fan is arranged to create at least a slight vacuum in the exit surface of the sieve.
3. An apparatus in accordance with one of claims 1 or 2, characterized in that the sieve layers have openings generally of the same size and the ratio of the length to the breadth of the opening size is between 1.3 - 2Ø
4. An apparatus in accordance with any one of claims 1 to 3, characterized in that the two sieve layers on top of each other are formed from sheet-metal pieces bent generally into a semi-circle, which are placed in grooves on each side of the frame.
5. An apparatus in accordance with claim 4, characterized in that one sieve layer is arranged to be moved in a direction transverse to the axis of the sieve with the aid of an opening device, the other layer being immovable, secured to the frame.
6. An apparatus in accordance with any one of claims 1 to 5, characterized in that the apparatus includes one or more pressure sensors located beneath the sieve and/or in connection with the thrower in order to monitor the passage of the mass.
7. An apparatus in accordance with any one of claims 1 to 6, characterized in that there are filler pieces in the crossbars of the lower sieve layer, which rise generally to same level as the rest of the sieve surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI942729A FI95109C (en) | 1994-06-10 | 1994-06-10 | Drum chipper Order |
| FI942729 | 1994-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2151436A1 CA2151436A1 (en) | 1995-12-11 |
| CA2151436C true CA2151436C (en) | 2007-02-13 |
Family
ID=8540882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2151436 Expired - Fee Related CA2151436C (en) | 1994-06-10 | 1995-06-09 | A drum chipper apparatus |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA2151436C (en) |
| DE (1) | DE19520982B9 (en) |
| FI (1) | FI95109C (en) |
| SE (1) | SE509046C2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29517867U1 (en) * | 1995-11-10 | 1996-01-04 | Weis Georg Gmbh | Shredding machine |
| IT1307541B1 (en) * | 1999-12-31 | 2001-11-06 | Giuseppe Loppoli | SHREDDER-MIXER FOR WOOD RESIDUES |
| DE10204772A1 (en) * | 2002-02-05 | 2003-08-21 | Tbe Habermehl Anlagenbau Gmbh | Cutting device, in particular for shredding chips |
| DE10234763A1 (en) * | 2002-07-30 | 2004-02-12 | Mathias Falkenberg | Method of comminuting flexible bulk material involves precompressing material prior to cutting |
| FR2859649B1 (en) * | 2003-09-16 | 2006-02-24 | Dussau Distrib | SCREEN GRID GRINDER |
| DE102004050926A1 (en) * | 2004-10-19 | 2006-04-20 | Georg Weiss Gmbh | Wood chips crushing machine, has two-way band provided at chipping knife and cone shaped chipping rotor swivellably arranged in rotor area, where each point of cutting edge of knife describes orbit with different radius |
| DE202005008077U1 (en) | 2005-05-19 | 2006-10-05 | Doppstadt Calbe Gmbh | comminution device |
| DE202006006802U1 (en) | 2006-04-25 | 2007-08-30 | Doppstadt Calbe Gmbh | comminution device |
| DE102007009658B3 (en) | 2007-02-22 | 2008-10-02 | Bruks Klöckner GmbH | Holzhäckselmaschine |
| EP2047911A1 (en) * | 2007-10-11 | 2009-04-15 | PC Maskiner ApS | Wood chipping machine with peripheral sieving and disintegration device |
| DE202007015635U1 (en) * | 2007-11-09 | 2009-03-26 | Komptech Gmbh | Hoe |
| FI122766B (en) | 2010-02-17 | 2012-06-29 | Kesla Oyj | Chopper rotor |
| DE102010050786B3 (en) * | 2010-11-10 | 2012-03-15 | Hogha Gmbh | Discharge device for a wood chipper |
| DE102012018074A1 (en) * | 2012-09-13 | 2014-03-13 | Hogha Gmbh | Device for sorting wood chips |
| DE102013100254B4 (en) | 2013-01-11 | 2019-12-24 | Jenz Gmbh Maschinenbau- Und Fahrzeugbau | Mobile drum chipper |
| NO345925B1 (en) * | 2017-08-16 | 2021-10-25 | Arbaflame Tech As | Method and apparatus for production of cellulose based fuel pellets. |
| EP4176980B1 (en) * | 2021-11-03 | 2024-01-10 | Mus-Max GmbH | Adjustable screening device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3612431A1 (en) * | 1986-04-12 | 1987-10-15 | Bernhard Laufenberg | Apparatus for shredding sheets or strips of paper, of film and of plastics |
| DE4319957C1 (en) * | 1993-06-16 | 1994-11-17 | Rhodia Ag Rhone Poulenc | Apparatus for recovering components of rod-shaped articles in the tobacco processing industry |
-
1994
- 1994-06-10 FI FI942729A patent/FI95109C/en not_active IP Right Cessation
-
1995
- 1995-06-08 DE DE1995120982 patent/DE19520982B9/en not_active Expired - Fee Related
- 1995-06-09 CA CA 2151436 patent/CA2151436C/en not_active Expired - Fee Related
- 1995-06-09 SE SE9502112A patent/SE509046C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI95109B (en) | 1995-09-15 |
| CA2151436A1 (en) | 1995-12-11 |
| DE19520982B9 (en) | 2005-10-13 |
| DE19520982A1 (en) | 1995-12-14 |
| SE9502112L (en) | 1995-12-11 |
| DE19520982B4 (en) | 2004-12-02 |
| FI95109C (en) | 1995-12-27 |
| SE509046C2 (en) | 1998-11-30 |
| SE9502112D0 (en) | 1995-06-09 |
| FI942729A0 (en) | 1994-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150609 |