EP0103240B1 - Broyeur à marteaux - Google Patents

Broyeur à marteaux Download PDF

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Publication number
EP0103240B1
EP0103240B1 EP83108623A EP83108623A EP0103240B1 EP 0103240 B1 EP0103240 B1 EP 0103240B1 EP 83108623 A EP83108623 A EP 83108623A EP 83108623 A EP83108623 A EP 83108623A EP 0103240 B1 EP0103240 B1 EP 0103240B1
Authority
EP
European Patent Office
Prior art keywords
hammer mill
mill according
grating
rotor
hammer
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
Application number
EP83108623A
Other languages
German (de)
English (en)
Other versions
EP0103240A3 (en
EP0103240A2 (fr
Inventor
Manfred Adolph
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.)
Lyndex Recycling Systems Ltd
Original Assignee
Lindemann Maschinenfabrik GmbH
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 Lindemann Maschinenfabrik GmbH filed Critical Lindemann Maschinenfabrik GmbH
Priority to AT83108623T priority Critical patent/ATE30854T1/de
Publication of EP0103240A2 publication Critical patent/EP0103240A2/fr
Publication of EP0103240A3 publication Critical patent/EP0103240A3/de
Application granted granted Critical
Publication of EP0103240B1 publication Critical patent/EP0103240B1/fr
Expired legal-status Critical Current

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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
    • B02C13/26—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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • 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

Definitions

  • the invention relates to a hammer crusher, in particular for crushing old material, preferably metallic scrap, consisting of a housing with a good inlet and a good outlet covered with a classifying grate, located in the region of a shaft, and a hammer rotor rotatably mounted in the housing.
  • Hammer crushers of this type for example shown and described in DE-PS 1 272 091, are increasingly used to shred car bodies, stoves, refrigerators, washing machines, steel furniture and the like. used.
  • a dedusting system which is generally two-stage and explosion-proof and usually consists of a cyclone pre-separator and a wet scrubber, which are connected downstream of the hammer crusher.
  • the size and suction capacity of the dedusting system are determined solely by the high air capacity of the hammer rotor, which was previously not accepted as influenceable, and not by the power which is merely required for the amount of dust actually to be extracted. So far, this has led to the fact that the known dedusting systems not only have unnecessarily high energy consumption, but because of the oversizing, which is inevitably accepted, they are relatively expensive with a relatively high level of noise pollution.
  • the invention has for its object to provide a hammer crusher of the type mentioned, which makes it possible to assign or connect dedusting systems that are not oversized but can be dimensioned according to the requirements arising from the amount of dust.
  • This object is achieved according to the invention based on the basic idea of reducing the blower effect of the hammer rotor by an air-permeable subdivision of the shaft into at least two spaces one behind the other in the direction of rotation of the rotor, of which the second space (21) opens into the area of the material inlet in the direction of rotation.
  • a version with a horizontally mounted hammer rotor has proven particularly useful, in which the shaft is then located above the rotor and is covered with a preferably horizontal grading grate, which can also be curved.
  • the additional shaft space provided according to the invention is not delimited by the classification grate but surrounds the hammer rotor in a width adapted to the rotor power over a certain circumferential angle range; it preferably extends from the exit to the entrance to the entrance.
  • the air connection to be provided between the two spaces is expediently achieved in the context of the invention by a baffle separating the spaces from one another, which extends at an angle to the grate plane from the edge of the grate facing the material inlet to close to the percussion circle of the rotor and in particular with openings or Breakthroughs is provided, which will be explained in detail.
  • a hammer rotor 2 which can be driven in the direction of rotation R is mounted horizontally with its axis 3. It is equipped in a manner known per se with the rotor hammers (not shown here in particular) as actual crushing tools, which can be freely pivoted in radial planes about their respective suspension on the circumference of the rotor 2.
  • the dash-dotted circle 4 marks the so-called hammer impact circle 4 described by the outer edges of the rotor hammers.
  • the housing 1 has a material inlet 5 for the material to be spread, for example car bodies, which are introduced into the housing 1 via the slope 6 in a state that is usually already highly compressed.
  • a classifying grate 7 forming the product outlet is arranged above the hammer rotor 2 and covers one through a discharge flap 8 for coarse parts that cannot be comminuted or only inadequately baffle 9 to be explained here and side walls (not described in greater detail) formed shaft 10 transversely to its axis.
  • a hood 11 above the grating 7 serves to collect and deflect the shredded scrap passing through the grate and is provided with a connection 11a for a dedusting system, not shown. Through a laterally located, lower opening 12 of the hood 11, the processed goods fall onto or into suitable transport devices.
  • the baffle 9 according to the invention is suspended or fastened in the housing 1 in a slightly inclined position immediately below the classification grate 7 in such a way that it extends at an angle to the grate plane from the edge of the grate 7 facing the material inlet 5 to close to the impact circle 4.
  • the baffle 9 has openings or openings 13 which are described in more detail below.
  • the baffle 9 in the illustrated embodiment is slightly flared with its edge facing the rotor in the direction of the material inlet 5, the angle a between the baffle surface 14 and a perpendicular to the plane of the grating 7 being chosen between approximately 10 ° and 30 ° can.
  • a further anvil edge 16 is provided for further comminution, namely on the edge of the baffle 9 facing the rotor; in this area there is also one of the end fastenings 17 of the baffle 9.
  • the openings or openings 13 passing through the baffle 9 should at least be dimensioned in such a way that they also let through those pieces of scrap which are comminuted and / or compacted enough to pass through the grating 7.
  • the air flow is influenced particularly favorably in the sense of the invention if larger dimensions are selected for the openings 13. If a rectangular cross section is selected for the openings 13. then it is expedient to give the long sides of the cross-sectional rectangles a minimum length of about 80 mm to 100 mm, depending on the material processed.
  • the sum of the inlet cross sections of the openings 13 should advantageously take up at least two thirds of the impact surface 14 of the baffle 9.
  • the openings 13 continuously expand from the impact surface 14 of the baffle 9 to the rear thereof.
  • the angle ⁇ between two opposing wall surfaces 18, 19 of the openings 13 is advantageously chosen in the range from 4 ° to 20 °, in particular between 6 ° and 16 °. The openings widening towards the outlet in this way prevent crushed parts from jamming in the openings.
  • the baffle 9 according to the invention in particular in connection with a housing wall 20 shaped approximately according to FIG. 1 in the area of the inlet 5 results in a surprising, extremely advantageous effect.
  • a substantial part of the amount of air conveyed by the fan action of the hammer rotor 2 into the shaft 10 below the classifying grate 7 is namely through the openings 13 in the baffle 9 in the direction of rotation R of the rotor 2 into the housing wall 20, which partly also extends from the arch to the material inlet 5 enclosed space 21 behind the baffle 9 and from there into the area of the inlet 5, supported by the slight negative pressure prevailing here relative to the space 21.
  • the measures and features according to the invention ensure that a substantial part of the air flow generated by the hammer rotor is conveyed in a circle through the baffle openings, namely initially into the space between the baffle and the inlet-side housing wall and from there again into the suction area of the hammer breaker at the good inlet. This reduces the amount of air sucked in from the outside and thus also the amount of air that has previously determined the dimensioning of the suction and blown off by the classifying grate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Electronic Switches (AREA)
  • Saccharide Compounds (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (16)

1. Broyeur à marteaux, notamment pour le broyage de vieux matériaux, constitué par une enveloppe comportant une ouverture d'entrée des matériaux et une ouverture de sortie des matériaux recouverte par une grille de classement placée dans un conduit vertical, ainsi que par un rotor à marteaux monté de manière à pouvoir tourner dans l'enveloppe, caractérisé par l'utilisation d'un dispositif laissant passer l'air et subdivisant le conduit vertical en deux espaces (10, 21) au moins qui sont situés l'un derrière l'autre dans le sens de la rotation du rotor et dont l'un, celui qui est le deuxième (21), s'ouvre dans la zone de l'entrée (5) des matériaux.
2. Broyeur à marteaux selon la revendication 1, caractérisé en ce que, le rotor à marteaux (2) étant horizontal, le conduit vertical (10, 21) se trouve au-dessus du rotor (2) et est recouvert par une grille de classement (7).
3. Broyeur à marteaux selon l'une des revendications 1 ou 2, caractérisé en ce que les espaces (10 et 21) sont séparés l'un de l'autre par une paroi d'impact (9).
4. Broyeur à marteaux selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que la paroi d'impact (9) s'étend depuis la grille de classement (7) jusqu'à proximité immédiate de la circonférence (4) de choc des marteaux décrite par les bords extérieurs des marteaux.
5. Broyeur à marteaux selon la revendication 4, caractérisé en ce que la paroi d'impact (9) s'étend, en formant un angle avec le plan de la grille, depuis le bord de la grille (7) situé du côté de l'entrée (5) des matériaux jusqu'à proximité de la circonférence de choc (4) du rotor (2).
6. Broyeur à marteaux selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que la surface d'impact (9) percée d'ouvertures (13) est disposée pratiquement perpendiculairement au plan de la grille de classement (7), de telle manière que la projection verticale de la paroi d'impact (9) sur le plan de la grille de classement (7) tombe en dehors de sa surface de passage.
7. Broyeur à marteaux selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que les sections d'entrée des ouvertures (13) ménagées dans la paroi d'impact (9) représentent au moins les deux tiers de la surface d'impact.
8. Broyeur à marteaux selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que la paroi d'enveloppe (20) voisine de l'ouverture d'entrée (5) des matériaux est, à partir de l'ouverture d'entrée (5), incurvée en arc jusqu'à la grille de classement (7) et entoure un espace libre (21) ouvert vers l'ouverture d'entrée (5) des matériaux et délimité par la paroi (20), par le côté arrière de la paroi d'impact (9) et par le rotor (2).
9. Broyeur à marteaux selon l'un ou plusieurs des revendications 1 à 8, caractérisé en ce que la paroi d'impact (9) forme, avec un plan passant par son bord horizontal situé approximité immédiate de la grille de classement (7) et perpendiculaire au plan de la grille de classement (7), un angle (a) d'écart par rapport à l'axe (3) du rotor compris entre 10° et 30°.
10. Broyeur à marteaux selon l'une ou plusieurs des revendications 1 à 9, caractérisé en ce que la paroi d'impact (9) est une grille comportant des ouvertures de passage (13) qui vont en s'élargissant constamment de son côté d'impact à son côté arrière.
11. Broyeur à marteaux selon la revendication 10, caractérisé en ce que les ouvertures de passage ont une section de forme rectangulaire.
12. Broyeur à marteaux selon l'une des revendications 10 ou 11, caractérisé en ce que les grands côtés des rectangles mesurés du côté de l'impact ont au moins 80 mm de long.
13. Broyeur à marteaux selon l'une ou plusieurs des revendications 1 à 12, caractérisé en ce que les grands côtés des sections rectangulaires sont perpendiculaires aux bords sensiblement horizontaux de la paroi d'impact (9).
14. Broyeur à marteaux selon l'une ou plusieurs des revendications 10 à 13, caractérisé en ce que les plus petits diamètres latéraux des sections des ouvertures de passage (13) ont, du côté entrée, suivant les matériaux traités, une longueur de 40 à 100 mm.
15. Broyeur à marteaux selon l'une ou plusieurs des revendications 10 à 14, caractérisé en ce que les surfaces des parois opposées (18, 19) des passages ou des ouvertures (13) font entre elles un angle (25) compris entre 4° au minimum et 20° au maximum.
16. Broyeur à marteaux selon l'une ou plusieurs des revendications 10 à 15, caractérisé en ce que les surfaces des parois opposées des passages ou des ouvertures (13) forment entre elles un angle de 6° à 16°.
EP83108623A 1982-09-14 1983-09-01 Broyeur à marteaux Expired EP0103240B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83108623T ATE30854T1 (de) 1982-09-14 1983-09-01 Hammerbrecher.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3233985 1982-09-14
DE19823233985 DE3233985A1 (de) 1982-09-14 1982-09-14 Hammerbrecher

Publications (3)

Publication Number Publication Date
EP0103240A2 EP0103240A2 (fr) 1984-03-21
EP0103240A3 EP0103240A3 (en) 1985-10-02
EP0103240B1 true EP0103240B1 (fr) 1987-11-19

Family

ID=6173140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108623A Expired EP0103240B1 (fr) 1982-09-14 1983-09-01 Broyeur à marteaux

Country Status (7)

Country Link
US (1) US4542856A (fr)
EP (1) EP0103240B1 (fr)
JP (1) JPS5966359A (fr)
AT (1) ATE30854T1 (fr)
AU (1) AU567506B2 (fr)
DE (2) DE3233985A1 (fr)
ES (1) ES8405292A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431658C1 (de) * 1984-08-29 1986-01-23 Thyssen Industrie Ag, 4300 Essen Ausbildung des Arbeitsspalts bei einer Zerkleinerungsmaschine mit waagerecht angeordnetem Hammerbrecherrotor
DE3839341A1 (de) * 1988-11-22 1990-05-23 Orenstein & Koppel Ag Verfahren und einrichtung zum universellen zerkleinern und trennen von materialien
US5244158A (en) * 1990-08-02 1993-09-14 Popovich Paul D Scrap processor
FR2713107B1 (fr) * 1993-11-30 1996-05-31 Ferrailles Cie Fse Broyeur à porte ajourée, utilisé pour le broyage des automobiles.
US5881959A (en) * 1995-05-04 1999-03-16 Cmi Corporation Materials grinder with infeed conveyor and anvil
DE19835796C2 (de) * 1998-08-07 2001-12-06 Svedala Lindemann Gmbh Verfahren zum Betreiben des Luftkreislaufes und Fördern des Gutstromes im Gehäuse eines Hammerbrechers und Gehäuse eines Hammerbrechers zur Durchführung des Verfahrens
MX2010012329A (es) * 2008-05-27 2011-02-25 Polycorp Ltd Forro del extremo de descarga.
EP2331261B1 (fr) * 2008-08-01 2014-03-19 Polycorp Ltd. Ensemble de grilles de décharge unidirectionnelles
US9289775B2 (en) 2012-11-22 2016-03-22 Polycorp Ltd. Discharge grate assembly
CN104492544A (zh) * 2014-12-18 2015-04-08 天津汉德威药业有限公司 专用破碎机
CN107694135B (zh) * 2017-11-13 2021-09-14 昆明特康科技有限公司 一种用于高湿高黏性物料干燥制粉的磨机及其运用方法
ES1209238Y (es) * 2018-03-07 2018-07-03 Talleres Zb S A Dispositivo de fragmentacion mejorado para una fragmentadora de materiales metalicos
CN108855536A (zh) * 2018-06-21 2018-11-23 南京达迈科技实业有限公司 一种镍合金粉碎设备

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502482C (de) * 1929-05-04 1930-07-12 Braunschweigische Maschb Ansta Hammermuehle
US2706088A (en) * 1952-01-16 1955-04-12 Emil H Paul Rotary cake breaker
US2756001A (en) * 1952-09-13 1956-07-24 Lyman N Kemp Soil and compost shredder with foreign object discharge door
US3202367A (en) * 1963-05-24 1965-08-24 Missouri Rogers Corp Two hammer single rotor crusher with hydraulic operated feed chute
FR1409886A (fr) * 1964-07-23 1965-09-03 Broyeur multiple
DE1272091C2 (de) * 1965-03-18 1973-05-30 Alton S Newell Hammerbrecher zum Zerkleinen von Abfaellen, insbesondere von metallischen Gegenstaenden
US3516613A (en) * 1967-10-27 1970-06-23 Poor & Co Rotary impact crusher
DE2126895C2 (de) * 1971-05-29 1985-05-15 Klöckner-Humboldt-Deutz AG, 5000 Köln Mahltrocknungsanlage
AU512623B2 (en) * 1973-05-30 1980-10-23 Verdun Barker Arnold Hammer mills
US3887141A (en) * 1973-09-17 1975-06-03 Ind Mining Machinery Corp Impact-attrition mill utilizing air flow
DE2516014C3 (de) * 1975-04-12 1986-05-28 Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster Zerkleinerungsmaschine für Abfälle
US4009836A (en) * 1975-06-30 1977-03-01 American Pulverizer Company Material reducing machine
DE2713177C2 (de) * 1977-03-25 1989-06-08 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Hammerbrecher
DE3017437C2 (de) * 1980-05-07 1989-10-12 Lindemann Maschinenfabrik GmbH, 4000 Düsseldorf Schleißeinsatz für Hammerbrecher

Also Published As

Publication number Publication date
DE3374523D1 (en) 1987-12-23
JPS5966359A (ja) 1984-04-14
EP0103240A3 (en) 1985-10-02
ES525561A0 (es) 1984-06-01
AU1898483A (en) 1984-03-22
US4542856A (en) 1985-09-24
DE3233985A1 (de) 1984-03-15
ES8405292A1 (es) 1984-06-01
EP0103240A2 (fr) 1984-03-21
AU567506B2 (en) 1987-11-26
ATE30854T1 (de) 1987-12-15

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