US3726485A - Impact breaker - Google Patents

Impact breaker Download PDF

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Publication number
US3726485A
US3726485A US00140476A US3726485DA US3726485A US 3726485 A US3726485 A US 3726485A US 00140476 A US00140476 A US 00140476A US 3726485D A US3726485D A US 3726485DA US 3726485 A US3726485 A US 3726485A
Authority
US
United States
Prior art keywords
anvil member
impact breaker
impellers
impeller
gap
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
US00140476A
Other languages
English (en)
Inventor
N Oznibichine
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.)
Salzgitter Maschinenbau GmbH
Original Assignee
HAZEMAG HARTZERKLEINERUNG
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 FR7016400A external-priority patent/FR2087123A6/fr
Application filed by HAZEMAG HARTZERKLEINERUNG filed Critical HAZEMAG HARTZERKLEINERUNG
Application granted granted Critical
Publication of US3726485A publication Critical patent/US3726485A/en
Assigned to HAZEMAG DR. E. ANDREAS GMBH & CO. reassignment HAZEMAG DR. E. ANDREAS GMBH & CO. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). DECEMBER 18, 1972 AND MARCH 21, 1977 RESPECTIVELY, GERMANY Assignors: HAZEMAG DR. E. ANDREAS KG (CHANGED TO), HAZEMAG, HARTZERKLEINERUNGS-UND ZEMENT-MASCHINENBAU-GESELLSCHAFT MIT BESCHRANKTER HAFTUNG (CHANGED TO)
Assigned to SALZGITTER MASCHINENBAU GMBH reassignment SALZGITTER MASCHINENBAU GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HAZEMAG DR. E. ANDREAS GMBH & CO., BY: KARL W. WISSING, RECEIVER IN BAKRUPTCY
Assigned to WISSING, KARL-WILHELM, TRUSTEE IN BANKRUPTCY reassignment WISSING, KARL-WILHELM, TRUSTEE IN BANKRUPTCY COURT APPOINTMENT (SEE DOCUMENT FOR DETAILS). Assignors: HAZEMAG DR. E. ANDREAS GMBH & CO. KG, BY: THE DISTRICT COURT OF GERMANY BANKRUPT
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
    • 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
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors

Definitions

  • the impellers have circumferences which define with one another a gap extending longitudinally of the axes of rotation and an anvil member of wedge-shaped crosssection is located at least in part in this gap at a side of an axial plane passing through these axes which is located downstream of this plane as seen with respect to the direction of rotation of the impellers. Material to be crushed which is carried along by the impellers into the gap thus impacts on the anvil member and becomes further crushed.
  • the present invention relates generally to impact breakers, and more particularly to a multiple impact breaker for crushing or comminuting hard materials such as stones or the like.
  • a multiple impact breaker in which a pair of impeller members rotate in the same direction about horizontal axes which are located at two different levels in a housing. Impact plates are arranged in the housing and cooperate with the impellers in such a manner that the material to be crushed and impelled by the impellers against the impact plates will rebound from the latter back to the respective impeller so that this material will at least in part be passed several times in the respective impact plate and impeller before being moved in circumferential direction of the impeller.
  • the impellers are rotary members which are provided with striking blades arranged uniformly spaced from each other about the peripheral surface of the respective impeller member or rotor, with the latter being of substantially cylindrical configuration.
  • a concommitant object of the invention is to provide such an improved impact breaker which is simple in its construction and highly reliable.
  • an impact breaker which, briefly stated, comprises a housing having a pair of impellers mounted therein for rotation about substantially parallel horizontal axes one of which is located at a level higher than the other.
  • the impellers have circumferences which define with one another a gap extending longitudinally of these axes, and according to the invention anvil means is located at least in part in this gap so that material to be crushed which is carried along by the upper impeller into the gap, will impact the anvil BRIEF DESCRIPTION OF THE DRAWING
  • the single FIGURE is a highly diagrammatic and very simplified view illustrating the embodiment of the invention.
  • FIG. 1 I have diagrammatically indicated a housing H in which there are mounted two impellers or rotors identified with reference numerals 2 and 3, respectively.
  • the construction of the impellers or rotors 2 and 3 may be identically the same as disclosed in my aforementioned patent.
  • the rotors rotate about horizontal or substantially horizontal axes A which extend in parallelism with one another.
  • the arrows associated with the rotors indicate that they both rotate in one and the same direction, and reference numerals 2a and 3a respectively indicate impact members or blades provided on the circumferences of the rotors 2 and 3.
  • anvil means in this gap in form of at least one elongated anvil member 20 of substantially wedge-shaped cross-section which extends in parallelism with the axes A and has side faces which are substantially tangential to theperipheries of the rotors 2 and 3.
  • the anvil member 20 must be prevented from turning about the axis 22, and for this purpose I provide bolts or similar members 23 which engage the anvil member 20 and a suitable stationary component for instance of the housing of a frame, and which normally prevent anvil member 20 from turning about the axis 22.
  • These bolts or similar elements 23 are, however, so constructed that when the force or pressure exerted ,upon the anvil member 20 in a sense attempting to turn it about the axis 22, exceeds a preselected limit, the members 23 will yield and shear off, thus permitting the anvil member 20 to turn about the axis 22 and avoiding the possibility of damage to the anvil member 20 and/or rotor 2.
  • an abutment 24 is provided which then limits thetuming movement about the axis. 22.
  • an impact breaker in combination, a housing; a pair of impellers mounted in said housing for rotation in a single direction about substantially parallel horizontal axes one of which is located at a level above the other and whose associated one impeller is the first to contact material admitted into the housing, said impellets having circumferences which define with one another a gap extending longitudinally of said axes; and at least one anvil member located in a lower part of said gap and having side faces one of which is located at a small distance from the circumference of said one impeller, and the other of which is located at a small distance from the other of said impellers, so that material to be crushed which is carried along by said one impeller into said gap in one direction, impacts said said one direction.
  • the abutment 24 is also provided, for the purpose of preventing the anvil member 20 from turning about the axis 22 to such an extent that it could block rotation of the rotor 3.
  • said retaining means comprising'at least one fixed retaining member engaging said anvil member-and adaptedto shear away when the latter is subjected to said predetermined pressure.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
US00140476A 1970-05-05 1971-05-05 Impact breaker Expired - Lifetime US3726485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7016400A FR2087123A6 (enrdf_load_stackoverflow) 1964-07-23 1970-05-05

Publications (1)

Publication Number Publication Date
US3726485A true US3726485A (en) 1973-04-10

Family

ID=9055117

Family Applications (1)

Application Number Title Priority Date Filing Date
US00140476A Expired - Lifetime US3726485A (en) 1970-05-05 1971-05-05 Impact breaker

Country Status (6)

Country Link
US (1) US3726485A (enrdf_load_stackoverflow)
JP (1) JPS544100B1 (enrdf_load_stackoverflow)
AT (1) AT308503B (enrdf_load_stackoverflow)
BR (1) BR7102704D0 (enrdf_load_stackoverflow)
IT (1) IT986791B (enrdf_load_stackoverflow)
ZA (1) ZA712588B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090108110A1 (en) * 2007-10-31 2009-04-30 Brick Jamey O Device and method for improving grinding efficacy in gravity-fed grinding machines
CN103736558A (zh) * 2013-12-30 2014-04-23 江苏正昌粮机股份有限公司 一种锤片式多转子粉碎机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783373A (en) * 1924-05-09 1930-12-02 Pennsylvania Crusher Co Single-roll crusher
US2644644A (en) * 1951-06-08 1953-07-07 Pennsylvania Crusher Co Two stage hammer mill
US3096035A (en) * 1960-08-04 1963-07-02 Barber Greene Co Rotary impact crusher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783373A (en) * 1924-05-09 1930-12-02 Pennsylvania Crusher Co Single-roll crusher
US2644644A (en) * 1951-06-08 1953-07-07 Pennsylvania Crusher Co Two stage hammer mill
US3096035A (en) * 1960-08-04 1963-07-02 Barber Greene Co Rotary impact crusher

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090108110A1 (en) * 2007-10-31 2009-04-30 Brick Jamey O Device and method for improving grinding efficacy in gravity-fed grinding machines
US7946513B2 (en) * 2007-10-31 2011-05-24 Brick Jamey O Device and method for improving grinding efficacy in gravity-fed grinding machines
CN103736558A (zh) * 2013-12-30 2014-04-23 江苏正昌粮机股份有限公司 一种锤片式多转子粉碎机
CN103736558B (zh) * 2013-12-30 2016-08-17 江苏正昌粮机股份有限公司 一种锤片式多转子粉碎机

Also Published As

Publication number Publication date
JPS544100B1 (enrdf_load_stackoverflow) 1979-03-02
BR7102704D0 (pt) 1973-08-28
AT308503B (de) 1973-07-10
IT986791B (it) 1975-01-30
ZA712588B (en) 1972-01-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WISSING, KARL-WILHELM, TRUSTEE IN BANKRUPTCY

Free format text: COURT APPOINTMENT;ASSIGNOR:HAZEMAG DR. E. ANDREAS GMBH & CO. KG, BY: THE DISTRICT COURT OF GERMANY BANKRUPT;REEL/FRAME:005216/0054

Effective date: 19881115

Owner name: SALZGITTER MASCHINENBAU GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HAZEMAG DR. E. ANDREAS GMBH & CO., BY: KARL W. WISSING, RECEIVER IN BAKRUPTCY;REEL/FRAME:005216/0056

Effective date: 19890510

Owner name: HAZEMAG DR. E. ANDREAS GMBH & CO.

Free format text: CHANGE OF NAME;ASSIGNORS:HAZEMAG, HARTZERKLEINERUNGS-UND ZEMENT-MASCHINENBAU-GESELLSCHAFT MIT BESCHRANKTER HAFTUNG (CHANGED TO);HAZEMAG DR. E. ANDREAS KG (CHANGED TO);REEL/FRAME:005216/0044

Effective date: 19881208