US3610543A - Waste and refuse disintegrating mill - Google Patents

Waste and refuse disintegrating mill Download PDF

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Publication number
US3610543A
US3610543A US833339A US3610543DA US3610543A US 3610543 A US3610543 A US 3610543A US 833339 A US833339 A US 833339A US 3610543D A US3610543D A US 3610543DA US 3610543 A US3610543 A US 3610543A
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US
United States
Prior art keywords
teeth
tools
disintegrating
nondisintegratable
rotor
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 - Lifetime
Application number
US833339A
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English (en)
Inventor
Alfred Jensen
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.)
ABJORN ANDERSON AB
Original Assignee
ABJORN ANDERSON AB
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
Priority claimed from SE8724/68A external-priority patent/SE314277B/xx
Priority claimed from SE5476/69A external-priority patent/SE344887B/xx
Application filed by ABJORN ANDERSON AB filed Critical ABJORN ANDERSON AB
Application granted granted Critical
Publication of US3610543A publication Critical patent/US3610543A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/04—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters hinged to the rotor; Hammer mills
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D02J1/226—Surface characteristics of guiding or stretching organs

Definitions

  • said distributor having blades thereon, a discshaped impeller provided at the opposite end thereof, and an end cover attached at one end of said casing having in its center material-feeding inlet, said inlet opening into said distributor at said shaft, and another end cover attached to the opposite end of said casing the improvement comprising a whirl chamber provided adjacent the material feeding inlet formed in the center of said end cover at said one end of said casing wherein material supplied from sad inlet is given a prewhirl movement before reaching said distributor.
  • a pulverizer comprising:
  • each rotor having radially extending blades, the outer extremities thereof terminating short of said liner;
  • said inlet port, whirl chamber, distributor, rotors, impeller and outlet port being arranged for causing air and material which is to be pulverized and which is fed into said inlet port to be given a prewhirling movement in said whirling chamber in the direction of rotation of said shaft and then to be supplied by said distributor to the outer periphery of said radially extending rotor blades where the material is pulverized and from whence said pulverized material is carried to said outlet port.
  • a pulverizer according to claim 3 characterized in that a plurality of axially spaced flat discs are attached to said shaft between said rotors, thereby fonning a plurality of partitioned areas in said casing.
  • a pulverizer according to claim 3 characterized in that an end cover is provided adjacent the material feeding inlet and said whirl chamber is formed in the center of said end cover wherein material supplied from said inlet is given a prewhirl movement.
  • a pulverizer according to claim l wherein the said blades of said distributor extend radially and axially of the axis of rotation of said shaft.
  • This invention relates to a waste and refuse disintegrating mill comprising a shaft, a rotor body mounted for rotation about said shaft, hammerlike tools pivotally mounted in the rotor body, and a grate penetrating with its webs between the paths of movement of said tools and adapted to cooperate therewith for disintegration of the refuse.
  • the webs of the grate have surfaces which cooperate with the tools for the disintegration of the refuse and extend tangentially to a circle concentric with the rotor shaft whereby when said surfaces are in position in the gratelke bridge such an angle is formed between the surfaces of the tools mutually cooperating with the surfaces of the grate webs at the disintegration that the apex of the angle is directed towards the rotor body, and that in the gratelke bridge at the ends of the grate webs situated outside the operating range of the tools there is provided a tilting door through which nondisintegratable material is discharged by the force that the tools making an angle with the bridge exert on the nondisintegratable material at their passage through said bridge.
  • said tilting door In its lowered normal position said tilting door will conduct material introduced through the entrance end of the disintegrator into the disintegrating region and only yield when a metal object by cooperation between the tools and the grate is thrown against the door which thereby allows the object to pass and then returns to initial position.
  • FIG. I is a vertical section of a disintegrator according to the invention.
  • FIG. 2 is a section corresponding to that in FIG. 1 and which is more diagrammatic to facilitate the understanding of the function of the disintegrator;
  • FIG. 3 is a modification of the invention
  • FIG. 4 is a section substantially on line IV-IV in FIG. 3.
  • the waste and refuse disintegrating mill is provided with a rotor body 2 adapted to rotate about a shaft l and bearing hammerlike tools 3.
  • a rotor body 2 adapted to rotate about a shaft l and bearing hammerlike tools 3.
  • a rotor body 2 is of a relatively large extension in the longitudinal direction of the shaft 1 and carries several rows of tools 3 extending in the longitudinal direction of the shaft l.
  • each row can comprise a relatively great number of tools.
  • the tools 3 are pivotally mounted in the rotor body 2 by detachable shafts 4 which by removal and reinsertion permit exchange of tools when these have been worn out.
  • the tools 3 can also be provided at both ends with holes 5 for the shaft 4, whereby the tools 3 can be turned to permit using both ends thereof for disintegrating purposes.
  • the rotor body 2 has several series of holes 6 for the shafts 4 at different radial distances from the shaft 1 so that the tools 3 by being successively moved into holes 6 at an ever increasing distance from the shaft 1 can be utilized to the highest extent possible.
  • the disintegrator further comprises a gratelke bridge 7 with webs 8 that project in between the paths of movement of the tools 3 about the shaft l, and a perforate jacket 9 through the gaps l0 of which refuse can be discharged which has been disintegrated to a mouldlike consistency.
  • the rotor body 2 is mounted in a frame ll in which the jacket 9 is disposed, and is surrounded by a housing 12 having an entrance opening I3 and an exit opening 14 for refuse that has been only partly disintegrated in the disintegrator. Such material is but an insignificant part of the total amount of refuse supplied to the disintegrator. Tests have shown that the disintegrator effectively comminutes even articles of clothing into a mouldlike product which is discharged from the disintegrator through the gaps l0 in the jacket 9.
  • the invention suggests the combination that the grate webs 8 are provided with surfaces l5 which cooperate with the tools for disintegrating the refuse and extend tangentially to a circle concentric with the rotor shaft l. ln the embodiment illustrated this circle I6, FIG. l, almost coincides with some of the circles on which lie the holes 6 in the rotor body 2. When in position in the gratelke bridge the tools 3 and the grate webs 8 will make between their mutually cooperating surfaces 18 and 15, respectively, an angle 17 whose apex is directed towards the rotor body 2.
  • the tools 3 At the rotation of the rotor body 2 in the direction indicated by the arrow 19 the tools 3 substantially take a radial position with respect to the rotor body 2 and therefore the angle 17 will be relatively constant but still vary to a certain extent due to the resistance that the material ground between the surfaces l5 and 18 exerts on the tools 3. The tools thus more or less swing away about the shafts 4 and yield until the refuse has been comminuted. The same applies, on the whole, when nondisintegratable material, such as metal objects, enters the disintegrator, as will appear from the following.
  • a tilting door 20 is further provided at the gratelke bridge 7 at the ends of the webs 8 lying outside the operating range of the tools 3. Through this door 20 nondisintegratable material is discharged under the action of the force exerted by the tools 3 at their passage through the bridge.
  • the tilting door 20 can be weight or spring loaded in a manner not shown in detail. lf for example an iron object enters the disintegrator together with other disintegratable material the iron object will be thrown against the door 20 which yields and, as soon as the iron object has passed therethrough, returns to its initial position in which it guides the disintegratable material towards the gratelke bridge.
  • the disintegratable material is comminuted by the cooperation of the tools 3 with the bridge 7, but in a not insignificant degree also by the passage of the tools 3 over the perforate jacket 9.
  • a pair of guide plates 21 and 22 lead but partly comminuted material through the exit opening 14.
  • the grate webs 8 are reversibly disposed beneath a bottom 23 of a discharge chute 24 for the nondisintegratable material, said bottom inclining downwardly and outwardly from the door 20.
  • Rods 25 are passed through the grate webs 8 and fixedly mounted in the frame ll in a manner not shown. Between adjacent grate webs 8 distance members 26 are provided, which members are curved on the same arc as the perforate jacket 9.
  • the disintegrating surfaces 15 of the grate webs 8 are provided in a plane A indicated by dash and dot lines and spaced from and beneath a plane B also indicated by dash and dot lines and in which the grate webs 8 penetrate beneath the inclined bottom 23 of the discharge chute 24.
  • the tilting door 20 in the closed position illustrated extends past the plane A up to or in proximity of the plane B. This arrangement will give the grate webs 8 a free part 27 'at the rear edge, and by the tilting door 20 being swung aside metal waste in the form of sheet metal cans which have been bent about the upper surfaces l5 of the grate webs 8 can be discharged over said edge part 27.
  • the said door 20 in addition to the portion 28 extending at right angles to the surfaces l5 of the grate webs 8 also has a portion 29 which forms the free end of the door and which at least on the whole extends parallel with the inclined bottom 23 of the discharge chute 24. More particularly, the main plane of the portion 29 substantially coincides with that of the inclined bottom 23.
  • the door is pivoted on a shaft 30 and has an arm 3l which is connected to one end of a coil spring 32 whose other end is anchored in a fastening 33 in the disintegrator.
  • the grate webs 8 are inserted in a stationary box 34 in such a manner as to permit reversal.
  • Said box 34 is disposed beneath the inclined bottom 23 of the discharge chute 24, and one wall of said box constitutes the inclined bottom 23, while the wall 35 of the box 34 facing the rotor body 2 is provided with openings through which the webs 8 are inserted in the box 34 in a reversible and exchangeable manner.
  • the parts of the wall 35 situated between the openings are protected by wearing elements 36 which are locked in active position by a safety pin 39 inserted through lugs 37 of the wearing elements 36 and holes in the webs 8 and also through the box sidewalls 38 parallel with said webs 8.
  • the upper portion of the respective wearing elements 36 is bent to form a hook 40 which grasps about the upper end of the respective part of the wall 35, thereby ensuring a still more steady position of the respective wearing element 36.
  • a wasteand refuse-disintegrating mill comprising a housing, said housing having an entrance opening at the top thereof, a discharge opening at the bottom through which comminuted material is discharged and a discharge opening on one side thereof through which nondisintegratable material may be discharged, a shaft mounted for rotation in said housing, a rotor mounted for rotation on said shaft, a plurality of hammerlike disintegrating tools pivotally mounted on said rotor for rotation therewith, a foraminous grinding cage concentric with the shaft and rotor for coaction with said disintegrating tools, and a plurality of stationary disintegrating teeth positioned adjacent to said entrance opening extending inwardly toward said rotor and interspersed between said disintegrating tools, the upper surface of said teeth being disposed tangentially to a circle concentric with said shaft to form an angle with said tools as they approach said teeth, the apex of which is disposed towards said rotor, said side discharge opening being located adjacent to said disintegrating teeth to receive nondisintegratable materials therethrough as said dis
  • a device as set forth in claim 4 and including a box disposed beneath said chute, a plurality of spaced openings in the wall of the box facing said rotor, said teeth having similar wearing surfaces on each end and being reversibly disposed in said openings in said box, and means locking said teeth in position with respect to said tools.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
US833339A 1968-06-27 1969-06-16 Waste and refuse disintegrating mill Expired - Lifetime US3610543A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8724/68A SE314277B (sv) 1968-06-27 1968-06-27
SE5476/69A SE344887B (sv) 1969-04-18 1969-04-18

Publications (1)

Publication Number Publication Date
US3610543A true US3610543A (en) 1971-10-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
US833339A Expired - Lifetime US3610543A (en) 1968-06-27 1969-06-16 Waste and refuse disintegrating mill

Country Status (10)

Country Link
US (1) US3610543A (sv)
AT (1) AT314949B (sv)
BE (1) BE735027A (sv)
CH (1) CH496475A (sv)
DK (1) DK124176B (sv)
FI (1) FI49246C (sv)
FR (1) FR2014349A1 (sv)
GB (1) GB1248995A (sv)
NL (1) NL165075C (sv)
NO (1) NO128309B (sv)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817462A (en) * 1972-07-17 1974-06-18 Mtd Prod Inc Shredder
US4767066A (en) * 1986-08-25 1988-08-30 Williams Patent Crusher And Pulverizer Company Downdraft reversible hammer mill
US4917310A (en) * 1989-02-27 1990-04-17 Sorain Cecchini Recovery, Incorporated Processing apparatus for solid refuse
US5205667A (en) * 1991-10-07 1993-04-27 Montgomery Industries International Inc. Pivot pin for shredder
US5381971A (en) * 1993-07-09 1995-01-17 Williams Patent Crusher And Pulverizer Company Grinding apparatus
US5484110A (en) * 1993-04-20 1996-01-16 Doppstadt; Werner Comminuting machine with communication cover plate
US5657933A (en) * 1995-08-16 1997-08-19 Williams; Robert M. Adjustable feed plate for paper shredder
US20110036936A1 (en) * 2009-08-12 2011-02-17 Harris Waste Management Group Comminuting machine containment system
CN102941139A (zh) * 2012-12-08 2013-02-27 福建固尔特矿山机械有限公司 双转子对撞式破碎机
US9186684B2 (en) 2012-04-16 2015-11-17 Harris Waste Management Group, Inc. Comminuting machine drive system
CN109530008A (zh) * 2018-12-29 2019-03-29 深圳市能源环保有限公司 一种电厂锅炉干渣的碎渣装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5294563A (en) * 1976-02-03 1977-08-09 Kyokuto Kaihatsu Kogyo Co Ltd Breaker capable of controlling jumps-out
GB2024654A (en) * 1978-07-05 1980-01-16 Metal Box Co Ltd Dealing with intractable material in a shredding machine
DE2909942C2 (de) * 1979-03-14 1983-11-17 Erwin 7953 Bad Schussenried Staudacher Vorrichtung zum Zerkleinern und Homogenisieren, insbesondere eines überwiegend weichplastisch verformbaren Mischgutes, wie z.B. Moormasse

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817462A (en) * 1972-07-17 1974-06-18 Mtd Prod Inc Shredder
US4767066A (en) * 1986-08-25 1988-08-30 Williams Patent Crusher And Pulverizer Company Downdraft reversible hammer mill
US4917310A (en) * 1989-02-27 1990-04-17 Sorain Cecchini Recovery, Incorporated Processing apparatus for solid refuse
US5205667A (en) * 1991-10-07 1993-04-27 Montgomery Industries International Inc. Pivot pin for shredder
US5484110A (en) * 1993-04-20 1996-01-16 Doppstadt; Werner Comminuting machine with communication cover plate
US5381971A (en) * 1993-07-09 1995-01-17 Williams Patent Crusher And Pulverizer Company Grinding apparatus
US5657933A (en) * 1995-08-16 1997-08-19 Williams; Robert M. Adjustable feed plate for paper shredder
US20110036936A1 (en) * 2009-08-12 2011-02-17 Harris Waste Management Group Comminuting machine containment system
US8152081B2 (en) * 2009-08-12 2012-04-10 Harris Waste Management Group, Inc. Comminuting machine containment system
US9186684B2 (en) 2012-04-16 2015-11-17 Harris Waste Management Group, Inc. Comminuting machine drive system
US9793832B2 (en) 2012-04-16 2017-10-17 Harris Waste Management Group, Inc. Comminuting machine drive system
CN102941139A (zh) * 2012-12-08 2013-02-27 福建固尔特矿山机械有限公司 双转子对撞式破碎机
CN109530008A (zh) * 2018-12-29 2019-03-29 深圳市能源环保有限公司 一种电厂锅炉干渣的碎渣装置

Also Published As

Publication number Publication date
DK124176B (da) 1972-09-25
FI49246B (sv) 1975-01-31
DE1931250A1 (de) 1971-01-28
NL6909875A (sv) 1969-12-30
GB1248995A (en) 1971-10-06
AT314949B (de) 1974-04-25
CH496475A (de) 1970-09-30
NL165075C (nl) 1981-03-16
FR2014349A1 (sv) 1970-04-17
NL165075B (nl) 1980-10-15
FI49246C (sv) 1975-05-12
BE735027A (sv) 1969-12-01
NO128309B (sv) 1973-10-29

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