EP2599554A2 - Dispositif de broyage de matériaux de chargement - Google Patents

Dispositif de broyage de matériaux de chargement Download PDF

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Publication number
EP2599554A2
EP2599554A2 EP12007947.0A EP12007947A EP2599554A2 EP 2599554 A2 EP2599554 A2 EP 2599554A2 EP 12007947 A EP12007947 A EP 12007947A EP 2599554 A2 EP2599554 A2 EP 2599554A2
Authority
EP
European Patent Office
Prior art keywords
rotor
flap
cylinder piston
hydraulic
actuator
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.)
Withdrawn
Application number
EP12007947.0A
Other languages
German (de)
English (en)
Other versions
EP2599554A3 (fr
Inventor
Hartmut Pallmann
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.)
Pallmann Maschinenfabrik GmbH and Co KG
Original Assignee
Pallmann Maschinenfabrik GmbH and Co KG
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 Pallmann Maschinenfabrik GmbH and Co KG filed Critical Pallmann Maschinenfabrik GmbH and Co KG
Publication of EP2599554A2 publication Critical patent/EP2599554A2/fr
Publication of EP2599554A3 publication Critical patent/EP2599554A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
    • 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
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • 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
    • B02C2018/164—Prevention of jamming and/or overload
    • 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
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the invention relates to a device for comminuting feed material according to the preamble of patent claim 1.
  • the field of application of the above-mentioned devices is in addition to the general comminution of solid pourable feedstock, inter alia, in the processing of waste or the recovery of recyclables in the course of recycling.
  • Examples include plastics, rubber, wood, waste wood, paper, cardboard, textiles, collections from the dual system and the like called as possible feedstock.
  • this type of feed material it can not be ruled out that foreign matter contained therein can also be supplied to the comminution with the feed material. If these foreign bodies, due to their size and / or their material, are not accessible to comminution, there is the risk that components of the comminuting device will suffer considerable damage, with the result of repair-related machine downtimes. There is therefore a great deal of interest on the part of the generic device operators to take measures to avoid such damage.
  • Both the DE 28 19 611 as well as the DE 1 931 250 disclose a hammer mill for grinding garbage and similar waste, in which no or hardly crushable fractions of the waste upstream of the crushing zone are continuously separated from the feed.
  • an opening is arranged in the region of the feed shaft close to the rotor, which opening is closed by means of a spring-loaded or weight-loaded flap.
  • the non-crushable feed material is driven by the rotation of the crushing tools, pressed against the flap. Under the applied pressure, the flap opens, so that foreign bodies pass through the released opening into a subsequent shaft, which leads out of the device. It proves to be disadvantageous that the bias of the flap of the movement of the excreted Guts always counteracts and thus hinders a rapid removal of foreign bodies.
  • the EP 0 687 503 A1 describes a roller shredder with a rotor whose distributed over the circumference crushing elements are arranged on a gap and cooperate with radially engaging in the gaps stationary comb teeth.
  • the Comb teeth sit non-rotatably on a common shaft, which is coupled with a hydraulic servo motor. By activating the servomotor, the shaft can be rotated about its axis and thus the comb teeth can be pivoted from a rest position into an operating position. To ensure escape of the comb teeth in the presence of foreign bodies, the supply lines to the actuators are depressurized, causing a pivoting of the comb teeth.
  • the object of the invention is to eliminate as completely as possible the risk of damage to comminution devices due to the action of foreign bodies in the comminution process, or at least to further reduce it.
  • the invention is based on the recognition that it can not be prevented that foreign objects can reach the immediate area of the comminuting zone with the feed material, where they are clamped between the rotor and the stator. Is a Shredding the foreign body due to their size, shape and / or material composition is not possible, foreign bodies are often the cause of damage to the device. Here, especially in rigid machine designs, the kinetic energy inherent in the rotor is fed undiminished into the machine construction, where as a result an overstressing of machine parts occurs.
  • the basic idea of the invention is to eliminate foreign bodies in the region in front of the comminution zone via an opening, even before they can cause damage.
  • the opening can be closed with a flap, whereby the drive for opening and closing the flap takes place with the aid of a prestressed energy store.
  • To perform the flap movement it only requires a relaxation of the energy storage, which causes a sudden opening of the flap.
  • extremely short reaction times from the detection of the foreign body to the opening of the flap can be achieved, which ensure a safe and reliable elimination of foreign bodies from the device even before they enter the crushing zone.
  • the risk that devices are damaged by foreign body action is thereby significantly reduced compared to known devices.
  • a hydraulic drive for the flap wherein the biased energy storage is formed by a hydraulic accumulator.
  • the biased in the hydraulic accumulator pressure medium for example, a hydraulic oil
  • the bias voltage can be generated by compressing a gas, for example nitrogen, or by elastic pre-deformation of a mechanical spring.
  • the flap is associated with a single cylinder piston unit.
  • the pivoting drive for the flaps can also be two cylinder-piston units include, which are articulated in each case at the opposite flap ends.
  • each of the two cylinder piston units can be fed from a hydraulic accumulator assigned to it alone, or both cylinder piston units are supplied via a common hydraulic accumulator.
  • the invention provides in an advantageous development that the volume of the hydraulic accumulator corresponds to 5 times to 10 times the stroke volume of the cylinder piston unit (s) assigned to it. In this way, it is ensured that the pressure drop in the hydraulic system, which accompanies the onset of relaxation of the energy accumulator, does not lead to a significant reduction in the pivoting speed.
  • the bias of the hydraulic accumulator is advantageously carried out with the aid of a gas which is preferably biased at 40 bar to 200 bar, most preferably at 100 bar to 200 bar. This makes it possible to extend the actuator piston of the cylinder piston unit with great force and constant high speed over the entire stroke.
  • the invention is provided in an advantageous development of the hydraulic oil flow cross-section of the hydraulic line at least as large as the pressurized cross-sectional area of the actuating piston, preferably at least twice as large.
  • suitable stroke velocities of the actuating piston are in a range of more than 0.5 m / s.
  • Preferred are lifting speeds of at least 1 m / s, preferably at least 1.5 m / s and most preferably at least 2 m / s.
  • a stop is provided against which the lower longitudinal edge of the flap during the closing movement moves.
  • the stop is displaceable in the radial direction with respect to the rotor axis, but at the same time fixed to the device with a defined retention force. If the defined retention force is exceeded, a movement of the stop begins against the closing movement of the flap.
  • the causative force is exerted by the feed material, which, driven by the rotor, presses against the surface facing the feed chute at the stop.
  • the movement of the stop initiates a minimum pivotal movement of the flap, which can serve as an additional signal for triggering the preloaded hydraulic drive and which contributes to further increasing the operational safety.
  • the in the Fig. 1 to 4 The apparatus shown has a substantially symmetrical structure based on a machine base frame with two plane-parallel transverse walls 1, which are connected in their lower corners by lower longitudinal beams 2 and in their upper corners of upper longitudinal members 3 with each other.
  • the longitudinal walls 4 are formed over their entire surface by doors 5, which are pivotable about hinges 6 for opening and closing the housing and thus ensure accessibility to the interior of the device.
  • a bracket 7 is welded in each case for receiving shaft bearings 8.
  • the shaft bearing 8 carry a rotor 9, which is essentially formed by a rotor drum 11, in the front side in each case a stub shaft 10 rotatably engages.
  • the two stub shafts 10 extend with their free ends through openings in the transverse walls 1 to the shaft bearings 8.
  • the rotor 9 is fitted over its circumference with a plurality of rotor tools 12, which are spaced apart both in the circumferential direction and in the axial direction.
  • Each rotor tool 12 is mounted replaceably in a receptacle on the lateral surface of the rotor drum 11. As indicated by the arrow 45, the rotor 9 can be operated in both directions of rotation.
  • the circle of the rotor tools 12 is indicated by reference numeral 46 ( FIG. 4 ).
  • the lower peripheral portion of the rotor 9 is surrounded by a screen web, which is formed in the present example of four sieve elements 13.
  • Each sieve element 13 consists essentially of a portafilter 14, on which a perforated screen 15 is clamped.
  • two sieve elements 13 extend in mirror image over approximately a quarter of the rotor circumference ( FIG. 1 ); longitudinally two sieve elements 13 follow each other axially ( FIG. 3 ).
  • axle bearings 17 are arranged on the inside of the transverse wall 1 and on both sides of an intermediate wall, in which the filter holder 14 are rotatably mounted.
  • the sieve elements 13 can each be pivoted downwards. With the doors 5 open access to the perforated screens 15 and the rotor 9 is thus ensured.
  • the upper longitudinal members 3 each serve for the stationary mounting of an axially parallel stator 48, their concrete structure under FIG. 4 is explained in more detail.
  • the longitudinal walls 26 In the connection region to the stator devices 48, the longitudinal walls 26 each have an opening 27 which extends from the one transverse wall 1 to the opposite.
  • the transverse walls of the feed chute 25 are reinforced with respect to the transverse walls 1 of the machine base frame and continue upwards beyond the rotor 9.
  • Each opening 27 is closed by a flap 28 which is mounted analogously to the screen elements 13 pivotally mounted in the transverse walls of the feed chute 25.
  • the pivot axes 29 of the flaps 28 lie in the region of the upper longitudinal edge of a flap 28, where axial bearing pins 47 are provided for this purpose.
  • the longitudinal walls 26 have on their inner side along their lower edge each a strip-shaped skirt 30 which overlaps the upper longitudinal edge of the flap 28.
  • a deflector plate 33 extends over its entire length and extends inclined towards its free edge in order to prevent accumulation of material in the swivel range of the flaps 28.
  • FIG. 2 shows the drive of the flaps 28 via cylinder piston units 34
  • the cylinders are connected to the outside of the transverse walls of the feed chute 25 each fixed to the machine housing, while the movable actuating piston are each hinged to a non-rotatably mounted on the drive pin of the flaps 28 lever 35.
  • the hydraulic drive and the control for the pivotal movement of the flaps 28 are in Fig. 2 shown schematically.
  • the core of the drive forms a hydraulic accumulator 36 in the form of a bladder accumulator, but which may also be formed by a piston or diaphragm accumulator.
  • a bladder 37 made of a stretchable gas-tight material, which, as indicated by the arrow 49, can be filled with a compressible gas up to a predetermined pressure. For example, can be filled with a pressure of 40 bar to 200 bar in the bladder 37 for this purpose, which is strongly compressed.
  • the pressure chamber 38 formed between the bubble 37 and memory 36 serves to store the pressure medium and is connected via the hydraulic lines 39 with the cylinder piston units 34.
  • valves 40 By means of valves 40, the flow through the hydraulic lines 39 can be regulated, wherein pressure sensors 41 monitor the pressure of the pressure medium in the cylinder piston units 34.
  • the measured values of the pressure sensors 41 are transmitted via the data lines 44 to a higher-level data processing unit 43 which, if required, actuates the valves 40 via the lines 45 for setting a specific flow in the hydraulic lines 39.
  • the data processing unit 43 monitors by means of the pressure sensor 42, the pressure in the bladder 37. To control the gas supply 49 to the hydraulic accumulator 36.
  • Fig. 4 shows a partial cross section of the device in the region of the stator 48.
  • the stator 48 includes a bar-shaped tool carrier 19 which extends in the longitudinal direction over the entire length of the rotor 9 and extends with its two ends beyond the transverse walls of the feed slot 25, where it removably attached is. With its underside of the tool carrier 19 rests on the upper longitudinal members 3 ( FIG. 1 ), while its upper side 51 is inclined towards the rotor 9 and thereby assumes an approximately radial aligned position.
  • the tool carrier 19 has a transversely stepped upper side 51, wherein a stop 52 acting in the radial direction is formed by a height offset in the edge region.
  • the top 51 serves as a bearing surface for a plate-shaped stator 21, which may extend integrally over the entire axial length of the rotor 9 or is formed by a plurality of axially juxtaposed segments.
  • the cooperating with the rotor tools 12 leading edge of the stator 21 is in the radial direction over the rotor 9 facing inside of the tool carrier 19 and depending on the type of application of the device may have a straight, wavy or zigzag course.
  • centrally arranged openings 54 serve to carry out clamping screws 23.
  • a bearing strip 53 is arranged, which is loosely supported on the stop 52.
  • On the bearing strip 53 act two axially spaced adjusting screws 24, of which in Fig.
  • the adjusting screws 24 extend into threaded bores which extend in the plane of the stator tool 21 from the outside of the tool carrier 19 to the bearing strip 53.
  • the position of the bearing bar 53 can be adjusted in the radial direction and thus the supernatant of the stator 21 on the inside of the tool carrier 19 and the gap width are set to the rotor tools 12.
  • the attachment of the stator 21 is carried out by means of a clamping plate 22 which rests with its underside on the top of the stator 21.
  • the clamping force for the clamping attachment of the stator 21 is generated by clamping screws 23 which extend through the clamping plate 22 and the stator 21 in a threaded bore in the tool carrier 19.
  • At the top of the clamping plate 22 in the region of the clamping screws 23 each have a surface recess 55 for receiving the screw head is arranged, which continues in the region of the screw shaft in the form of an elongated hole 56 to the underside of the clamping plate 22.
  • the radial length of the elongated hole 56 in this case has a sufficiently large clearance relative to the screw shank in order not to hinder movements of the clamping plate 22 in the radial direction.
  • a strip-shaped projection 32 which serves to form a pivotal movement 57 of the flap 28 limiting stop.
  • the feed material is fed to the rotor 9 via the feed chute 25, where it is first compressed between the outer circumference of the rotor 9 and the longitudinal wall 26 of the feed chute 25 before its comminution takes place in cooperation of the rotor knives 12 with the stator knives 21. If foreign bodies 50 which can not be comminuted in the feed material are also present as a result of the entrainment action of the rotor 9 in the region of the longitudinal wall 26 and are pressed there against the flap 28.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
EP12007947.0A 2011-11-29 2012-11-26 Dispositif de broyage de matériaux de chargement Withdrawn EP2599554A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011119595A DE102011119595A1 (de) 2011-11-29 2011-11-29 Vorrichtung zum Zerkleinern von Aufgabegut

Publications (2)

Publication Number Publication Date
EP2599554A2 true EP2599554A2 (fr) 2013-06-05
EP2599554A3 EP2599554A3 (fr) 2013-06-19

Family

ID=47290543

Family Applications (1)

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EP12007947.0A Withdrawn EP2599554A3 (fr) 2011-11-29 2012-11-26 Dispositif de broyage de matériaux de chargement

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EP (1) EP2599554A3 (fr)
DE (1) DE102011119595A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217894A1 (de) * 2013-09-06 2015-03-12 B. Maier Zerkleinerungstechnik Gmbh Hackmaschine zum Zerhacken von Gegenständen aus Holz oder anderen Materialien
CN108993735A (zh) * 2018-07-19 2018-12-14 安徽云帆科技咨询有限公司 一种饲料磨粉机
CN110373748A (zh) * 2019-08-30 2019-10-25 安徽正力纺织科技有限公司 一种纺织业废丝回收喂料装置及其回收工艺
US20220072560A1 (en) * 2018-12-21 2022-03-10 Metso Outotec Sweden Ab Monitoring System
CN116037296A (zh) * 2023-03-28 2023-05-02 廊坊市燕美化工有限公司 用于高分子粉末涂料制备的防粘连磨粉设备及生产工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1931250A1 (de) 1968-06-27 1971-01-28 Anderson Ab A Bjoern Vorrichtung an Muehlen zur Zerkleinerung von Muell und aehnlichem Abfall
DE2819611A1 (de) 1977-05-06 1978-11-09 Svedala Arbra Ab Vorrichtung an muehlen zur zerkleinerung von muell und aehnlichem abfall
EP0687503A1 (fr) 1994-06-16 1995-12-20 Werner Doppstadt Déchiqueteur à rouleau
DE29907584U1 (de) 1999-04-29 1999-07-15 Lindner Maschinenfabrik Gmbh, Spittal Zerkleinerungsvorrichtung für durch Messereinwirkung zerkleinerbares Material

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037104A1 (de) * 1970-07-27 1972-02-03 Hazemag Hartzerkleinerungs und Ze ment Maschinenbau GmbH, 4400 Munster Prallmühle mit gegenüber dem Rotor ein und verstellbarer nachgiebiger Mahlbahn
DE3245199A1 (de) * 1982-12-07 1984-06-07 Strabag Bau-AG, 5000 Köln Vorrichtung zur hartzerkleinerung von grobstueckigen, verfestigten gesteinsgemischen
US4778114A (en) * 1987-04-10 1988-10-18 Blower Application Company Shredding apparatus
DE4016295A1 (de) * 1990-05-21 1991-11-28 Lindemann Maschfab Gmbh Hammerbrecher
DE4328506C1 (de) * 1993-08-25 1995-02-09 Buerener Maschf Gmbh Spänebrecher
DE29505133U1 (de) * 1995-03-25 1996-07-25 Krupp Fördertechnik GmbH, 47226 Duisburg Zerkleinerungsmaschine
DE10006757C1 (de) * 2000-02-15 2001-05-17 Mayfran Int Bv Verfahren und Vorrichtungen zum Zerkleinern von Spänen
DE10056637B4 (de) * 2000-11-15 2005-10-13 Metso Lindemann Gmbh Verfahren und Anlage zur Zerkleinerung von Abfall
GB0723505D0 (en) * 2007-11-30 2008-01-09 Terex Pegson Ltd Impact crusher
AT10892U1 (de) * 2008-05-02 2009-12-15 Unterwurzacher Patentverwertun Zerkleinerungsvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1931250A1 (de) 1968-06-27 1971-01-28 Anderson Ab A Bjoern Vorrichtung an Muehlen zur Zerkleinerung von Muell und aehnlichem Abfall
DE2819611A1 (de) 1977-05-06 1978-11-09 Svedala Arbra Ab Vorrichtung an muehlen zur zerkleinerung von muell und aehnlichem abfall
EP0687503A1 (fr) 1994-06-16 1995-12-20 Werner Doppstadt Déchiqueteur à rouleau
DE29907584U1 (de) 1999-04-29 1999-07-15 Lindner Maschinenfabrik Gmbh, Spittal Zerkleinerungsvorrichtung für durch Messereinwirkung zerkleinerbares Material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217894A1 (de) * 2013-09-06 2015-03-12 B. Maier Zerkleinerungstechnik Gmbh Hackmaschine zum Zerhacken von Gegenständen aus Holz oder anderen Materialien
CN108993735A (zh) * 2018-07-19 2018-12-14 安徽云帆科技咨询有限公司 一种饲料磨粉机
US20220072560A1 (en) * 2018-12-21 2022-03-10 Metso Outotec Sweden Ab Monitoring System
US12239995B2 (en) * 2018-12-21 2025-03-04 Metso Outotec USA Inc. Method and system for monitoring a hydraulic system of a comminution apparatus
CN110373748A (zh) * 2019-08-30 2019-10-25 安徽正力纺织科技有限公司 一种纺织业废丝回收喂料装置及其回收工艺
CN116037296A (zh) * 2023-03-28 2023-05-02 廊坊市燕美化工有限公司 用于高分子粉末涂料制备的防粘连磨粉设备及生产工艺
CN116037296B (zh) * 2023-03-28 2023-06-16 廊坊市燕美化工有限公司 用于高分子粉末涂料制备的防粘连磨粉设备及生产工艺

Also Published As

Publication number Publication date
EP2599554A3 (fr) 2013-06-19
DE102011119595A1 (de) 2013-05-29

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