EP2305385A2 - Moulin pour le broyage de matière à broyer - Google Patents

Moulin pour le broyage de matière à broyer Download PDF

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Publication number
EP2305385A2
EP2305385A2 EP20100174142 EP10174142A EP2305385A2 EP 2305385 A2 EP2305385 A2 EP 2305385A2 EP 20100174142 EP20100174142 EP 20100174142 EP 10174142 A EP10174142 A EP 10174142A EP 2305385 A2 EP2305385 A2 EP 2305385A2
Authority
EP
European Patent Office
Prior art keywords
mill according
grinder
knives
motor
mill
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
EP20100174142
Other languages
German (de)
English (en)
Other versions
EP2305385A3 (fr
EP2305385B1 (fr
Inventor
Josef Lechner
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.)
Treffler Maschinenbau GmbH and Co KG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2305385A2 publication Critical patent/EP2305385A2/fr
Publication of EP2305385A3 publication Critical patent/EP2305385A3/fr
Application granted granted Critical
Publication of EP2305385B1 publication Critical patent/EP2305385B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/13—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and combined with sifting devices, e.g. for making powdered fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens
    • 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
    • B02C18/18—Knives; Mountings thereof
    • B02C18/182—Disc-shaped knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C9/00—Other milling methods or mills specially adapted for grain
    • 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

Definitions

  • the invention relates to a mill for grinding regrind according to the preamble of claim 1.
  • a mill for grinding regrind for grinding regrind, in particular cereals for the production of flour, various types of mill are known.
  • traditional stone mills and mills are used in which the grinding work is done by means of a knife set, which rotates in a grinder and crushed the ground material directly or by hitting a baffle plate.
  • Such a mill is in German utility model DE 20 2004 005 117 described.
  • the object of the invention is to further increase the performance of such a mill. This means that the grinding capacity should be increased in order to increase the volume flow through the mill with as little as possible increased power consumption and thus to further improve the effectiveness of the machine. In this case, a sufficient Mahlgüte is a prerequisite.
  • a mill having a grinder in which a knife set is driven by a motor having circumferentially teeth provided with inserts.
  • the grinding performance is significantly increased compared to the knives known in mills, which have only teeth.
  • the inserts can be ground, which enables a very high grinding performance with excellent grinding quality.
  • the blades are formed like a disk and the inserts are arranged on the teeth of the knife so that their surface is at right angles to the disk plane. Also, a slight inclination of the inserts relative to this plane is advantageously possible.
  • the cutting plates are advantageously arranged inclined relative to the radius of the disc and tilted with the upper edge in the direction of rotation to the front.
  • the cutting plates as already explained, made of a material that allows grinding same or a regrinding. For this purpose, Vidiaplatten have proven.
  • the inserts are about twice as wide as the discs of the knives are strong. Depending on the material to be ground, the high grinding performance of such knives can easily lead to blockage of the knife set. This is avoided with the stated dimensioning, as is created by the blade wheels, which have a lower thickness, so to speak radially within the inserts space in which the ground millbase can move and thus blocking the knife is largely prevented.
  • a strength of the knives of about 2mm and an insert width of about 4mm has proven to be useful.
  • an arrangement with twelve to fourteen knives in the grinding chamber has proven itself.
  • the blades are advantageously mounted directly on the drive shaft and rotatably connected thereto, for example via a keyway connection.
  • a displacement of the knife so that the teeth of the knife is not aligned is not required. Rather, an excellent grinding performance has been shown in aligned mounting on the drive shaft. Due to the fact that the knives are made narrower than the inserts, the blades must be mounted with a certain distance on the drive shaft. For this purpose, spacers have proven that 4 or 5mm are strong in the specific embodiment. Advantageously, stronger spacers are used in the outer area of the knife set than in the middle area.
  • the engine is provided with a motor control, which allows a slow start-up of the engine to the target speed.
  • a motor control which allows a slow start-up of the engine to the target speed.
  • rapid startup of the engine leads, especially in conjunction with the described powerful blade set to a strong mechanical stress on the mill, especially the grinder, by the Occurrence of unwanted vibrations. This can be avoided by slowly starting the engine.
  • the material to be ground is advantageously fed from above via a hopper to the grinder.
  • funnel magnets can be provided, which have the task to retain any metallic objects located in the material to be ground so as to avoid damage to the set of knives.
  • the outlet for the ground regrind is provided on the underside of the grinder. If the outlet is arranged at the lowest point of the interior of the grinder, the discharge of the ground grind is reliably possible.
  • the grinder can further be provided with a connection for introducing a fluid, preferably air, which can be blown into the grinder in order to achieve a superposition of the flow of the ground material with a second fluid flow, which is advantageous in particular for very dense material to be ground on the grinding result effect.
  • the connection for introducing this fluid may be provided laterally above the blade set, so that the flow impinges on the ground material flow at approximately right angles.
  • the grinder is provided with a lockable flap, which allows to inspect the interior of the grinder and, where appropriate, to eliminate occurring blockages.
  • this flap is arranged in the vicinity of the knife set.
  • Fig. 1 is good to see the actual grinder housing 1 on which the drive motor 2 is flanged.
  • the controlled Mahlguteinlass 5 which is arranged on top of the grinder housing 1 and is fed by a grinding mill hopper 4 with ground material.
  • a control device by means of the fluid flow of ground material in the grinder housing 1 is adjustable.
  • a fluid inlet 7 is provided below the Mahlguteinlasses 5, the side of the grinder housing 1, by means of which a fluid, such as air, can be blown into the grinder housing.
  • Mahlgutauslass 6 is located at the bottom of the grinder housing 1 at the lowest point of the interior of the grinder and leads via a pipeline to a collecting container, not shown, in which the ground millbase is collected.
  • Fig. 2 the mill is shown with open grinder.
  • the shown wall of the grinder housing 1 opened by means of a flap 8, so that the blade set 9 is visible.
  • the flap 8 is pivotally mounted on a bolt 10 and locked on a not-explained control mechanism on the grinder housing 1.
  • not visible shaft of the drive motor 2 protrudes into the interior of the grinder and is there directly connected to the knives 11 of the set of blades 9.
  • a knife 11 of the mill according to the invention is shown.
  • This knife 11 has a disk-like shape with four large recesses and is provided in the central region with further recesses 14 which allow a rotationally fixed mounting on the shaft of the drive motor 2.
  • At the outer periphery of the knife 11 is provided with teeth 13.
  • the flanks protruding in the direction of rotation are provided with cutting plates 15.
  • the teeth 13 and also the cutting plates 15 are slightly inclined relative to the radius of the blade 11 in the direction of rotation to the front.
  • the disc-like base body of the blade 11 has a thickness of 2 mm, whereas the cutting plates 15 has a width in the axial direction of the blade 11 and in the direction of the drive shaft of the drive motor 2 of 4 mm.
  • the cutting plates 15 are made of a grindable or regrindable steel, so that a high sharpness of the blade 11 can be ensured.
  • the knives 11 are mounted as a knife set 9 in the concrete embodiment consisting of twelve knives 11 in the interior of the grinder.
  • the disk-like blades 11 are mounted at a predetermined distance on the shaft of the drive motor 2.
  • spacers 16 are used, which looks like good
  • Fig. 4 can be seen to ensure the desired distance between the blades 11.
  • the blades 11 are shown simplified as discs.
  • the cutting plates 15 are not shown. Since twelve knives 11 are used, eleven shims 16 must be used.
  • each have three outer spacers 16a of the knife set 9 has a thickness of 5mm, wherein the inserted in the central region of the blade set 9 five shims 16b have a thickness of 4mm.
  • a 4mm thick lens 16c mounted at the end, ie right or left of the outermost knife.
  • Fig. 5 shows the drive motor 2 with additional shaft seal 17.
  • the additional shaft seal 17 is mounted by means of an additional flange 18 which is arranged on a collar 19 of the housing of the drive motor 2.
  • the additional flange 18 is screwed to the collar 19.
  • Fig. 6 shows the grinding hopper 4 in the inner region of the transition into the Mahlguteinlass 5 rod-shaped magnets 20 are mounted, which are mounted by means of a carrier 21 and screws 22 in the interior of the grinding hopper 4.
  • metallic objects which could lead to damage of the blade 11, kept away from the grinder.
  • the carrier 21 with all the magnets 20 can be completely removed after loosening the screws 22.
  • metallic objects can be picked up by the magnets 20 in a simple manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Crushing And Grinding (AREA)
EP10174142.9A 2009-10-02 2010-08-26 Moulin pour le broyage de matière à broyer Active EP2305385B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910045308 DE102009045308B4 (de) 2009-10-02 2009-10-02 Mühle zum Mahlen von Mahlgut

Publications (3)

Publication Number Publication Date
EP2305385A2 true EP2305385A2 (fr) 2011-04-06
EP2305385A3 EP2305385A3 (fr) 2014-09-10
EP2305385B1 EP2305385B1 (fr) 2015-11-04

Family

ID=43256375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10174142.9A Active EP2305385B1 (fr) 2009-10-02 2010-08-26 Moulin pour le broyage de matière à broyer

Country Status (3)

Country Link
EP (1) EP2305385B1 (fr)
DE (1) DE102009045308B4 (fr)
ES (1) ES2561490T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117504993A (zh) * 2024-01-08 2024-02-06 四川省郫筒酱园有限责任公司 一种辣椒加工用转运输送机
US20240375119A1 (en) * 2021-03-31 2024-11-14 Treffler Maschinenbau Gmbh & Co. Kg Grinding unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004005117U1 (de) 2004-03-31 2004-06-09 Lechner, Josef Mühle zur Herstellung von Mehl

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090568A (en) * 1960-06-27 1963-05-21 Earnest M Wetmore Apparatus for grinding and pulverizing ear corn and the like
US4374573A (en) * 1979-05-08 1983-02-22 Rouse Michael W Apparatus for shredding rubber tires and other waste materials
US6880774B2 (en) * 2000-05-08 2005-04-19 Morbark, Inc. Reducing machine rotor assembly and methods of constructing and operating the same
US20040099755A1 (en) * 2002-11-26 2004-05-27 Craft Thomas H. Method & apparatus for reducing tires
WO2007010563A1 (fr) * 2005-07-19 2007-01-25 Cams Srl Meuleuse de gravats

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004005117U1 (de) 2004-03-31 2004-06-09 Lechner, Josef Mühle zur Herstellung von Mehl

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240375119A1 (en) * 2021-03-31 2024-11-14 Treffler Maschinenbau Gmbh & Co. Kg Grinding unit
CN117504993A (zh) * 2024-01-08 2024-02-06 四川省郫筒酱园有限责任公司 一种辣椒加工用转运输送机
CN117504993B (zh) * 2024-01-08 2024-03-19 四川省郫筒酱园有限责任公司 一种辣椒加工用转运输送机

Also Published As

Publication number Publication date
DE102009045308A1 (de) 2011-04-07
ES2561490T3 (es) 2016-02-26
DE102009045308B4 (de) 2012-06-06
EP2305385A3 (fr) 2014-09-10
EP2305385B1 (fr) 2015-11-04

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