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US2754068A - Roll mill for grinding liquid and pasty material - Google Patents

Roll mill for grinding liquid and pasty material Download PDF

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Publication number
US2754068A
US2754068A US305841A US30584152A US2754068A US 2754068 A US2754068 A US 2754068A US 305841 A US305841 A US 305841A US 30584152 A US30584152 A US 30584152A US 2754068 A US2754068 A US 2754068A
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US
United States
Prior art keywords
roll
auxiliary
grinding
ground
main
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
US305841A
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English (en)
Inventor
Ploberger Friedrich
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.)
Individual
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
Application granted granted Critical
Publication of US2754068A publication Critical patent/US2754068A/en
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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B02C4/18—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a bar
    • B02C4/22—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a bar specially adapted for milling paste-like material, e.g. paint, chocolate, colloids

Definitions

  • the known constructions do not sutficiently allow for the fact that particularly in the case of viscous or pasty substances the rolls are hardly wetted or are wetted not at all, the grinding operation being interrupted if the peripheral speed of the rolls is increased beyond a cer tain limit.
  • the output of the mill depends also on the peripheral speed of the grinding roll, which controls the auxiliary roll. For this reason high speeds are desirable.
  • the invention relates to a roller mill for grinding liquid and pasty material and has as its object, on the one hand, to enable high rotary speeds without disadvantage and, on the other hand, to provide for forcing the auxiliary roll under uniform pressure against the main roll, without a special device.
  • This is achieved in that the auxiliary roll lies loosely on the main roll, under its own weight, and is secured against travelling around the main roll, and that the auxiliary roll has coordinated therewith an applying device for feeding the liquid or pasty material to be ground, in the form of liquid filaments of controllable thickness.
  • the liquid filaments distribute evenly on the surface roll at the point of contact of the two rolls.
  • the construction according to the invention may be developed to enable a repeated passage of the material to be ground, as in the known mills mentioned hereinthe roll 2, and
  • ing roll defines a chamber in which the material to be ground is homogenized before being discharged from the bar.
  • the material to be ground is subjected to pregrinding between the two rolls, to a continuous kneading in the chamber, without use of the previously employed stirring tools, and to a final grinding between the bar and the main roll.
  • the excess of material to be ground will escape from the filled chamber at the point of contact of the auxiliary roll with the wall, to be preground additionally at this point, and will be reintroduced into the chamber.
  • the grinding efl'iciency can be substantially increased.
  • the auxiliary roll 3 With the wall 4 and the main roll 2, the auxiliary roll 3 defines a cavity 12. Above the auxiliary roll a reservoir 13 for the material to be ground is provided. Several mutually spaced discharge pipes 14 only one of which is shown in the drawing, with cocks or outlets 15 to control the downfiow or thickness of the filaments of material to be ground, are provided at the trough-shaped bottom of the reservoir. The pipes 14 are arranged above and along the auxiliary roll 3 so that the liquid filaments of the material come on top of the roll 3, where they distribute evenly over the peripheral surface thereof and during the rotation of the roll 3 in the sense of the arrow 3, effected by the main roll, are transferred to the main roll in the form of an even layer.
  • the material to be ground is pretreated as in an edge mill, passed into the cavity 12 and thereback so that the space 12 progressively fills with mateenters the receiver.
  • the roll 3 is surrounded by a hopper-like co tainer 16, which as contrasted With the known roll-type grinding mills Tests have shown that the grinding efiiciency can be between the two rolls the material to be treated is ground at the point of contact between the auxiliary roll 3 and the wall 4, and the material to be ground which is enclosed in the cavity 12 is subjected to rapid homogenization.
  • Pasty material can be fed also by separate conveyor means, which feed the material to be ground to the main roll by pressure.
  • a roll mill for grinding liquid stock comprising a main roll, an auxiliary roll loosely supported on the main roll, means engaged by the auxiliary roll preventing same from traveling around the main roll and means feeding the liquid to be ground in filaments to the auxiliary roll.
  • a roll mill for grinding liquid stock comprising a main roll, an auxiliary roll loosely supported above the main roll, means engaged by the auxiliary roll and preventing same from traveling around the main roll, means feeding the liquid to be ground in filaments to the auxiliary roll, and means connected to .the feeding means and controlling the thickness of the filaments.
  • a roll machine for grinding liquid stock comprising a main roll, an auxiliary roll loosely supported on the main roll, means engaged by the auxiliary roll and preventing same from traveling around the main roll and discharge pipes feeding liquid to be ground in filaments to the auxiliary roll and each having an outlet.
  • a roll mill comprising a main roll, a grinding bar adjacent to the main roll, a wall in guiding engagement with said grinding bar, an auxiliary roll loosely supported by said main roll and bearing against said wall, said wall, and the peripheries of said main and auxiliary rolls defining between them a chamber, and means arranged adjacent to said auxiliary roll and feeding material to be ground thereto, said auxiliary roll feeding said material to said chamber and said main and auxiliary rolls kneading said material in said chamber to homogenize said material upon rotation of said main roll

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
US305841A 1951-08-24 1952-08-22 Roll mill for grinding liquid and pasty material Expired - Lifetime US2754068A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT308059X 1951-08-24
AT701774X 1951-08-24
AT2754068X 1951-08-24

Publications (1)

Publication Number Publication Date
US2754068A true US2754068A (en) 1956-07-10

Family

ID=27669547

Family Applications (1)

Application Number Title Priority Date Filing Date
US305841A Expired - Lifetime US2754068A (en) 1951-08-24 1952-08-22 Roll mill for grinding liquid and pasty material

Country Status (3)

Country Link
US (1) US2754068A (de)
CH (1) CH308059A (de)
DE (1) DE1025702B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643876A (en) * 1969-12-11 1972-02-22 Richardson Co Automatic apparatus for supplying liquids to roller mills
RU2592905C1 (ru) * 2015-02-05 2016-07-27 Общество с ограниченной ответственностью "НПО ВТОРМ" Валковая машина

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189414005A (en) * 1894-07-20 1894-08-25 Adolf Ludwig Gelinek An Improved Washing or Mixing Apparatus.
US1728411A (en) * 1927-09-06 1929-09-17 Oliver O Howard Mixer
US1837772A (en) * 1927-04-11 1931-12-22 British Dyestuffs Corp Ltd Process for the preparation of solid bodies in finely divided states
US2044757A (en) * 1936-03-11 1936-06-16 Cross Matthew Forbes Method of dispersing particles and apparatus therefor
US2075403A (en) * 1932-06-21 1937-03-30 Geneva Processes Inc Apparatus for dispersing materials
US2162778A (en) * 1936-05-02 1939-06-20 Raymond W Kent Manufacture of pile fabrics
US2313010A (en) * 1938-12-10 1943-03-02 Brudal Holger Apparatus for the producing of aqueous suspensions of clay
US2492421A (en) * 1945-03-31 1949-12-27 American Viscose Corp Viscose preparation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562885C (de) * 1932-10-25 Voegele Ag J Einwalzwerk fuer pastenfoermiges Gut
FR711185A (fr) * 1930-05-17 1931-09-04 Le Clezio Ets Perfectionnements apportés aux moulins pour le broyage des peintures, couleurs, émaux, laques, encres et autres matières visqueuses ou pâteuses, même alimentaires

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189414005A (en) * 1894-07-20 1894-08-25 Adolf Ludwig Gelinek An Improved Washing or Mixing Apparatus.
US1837772A (en) * 1927-04-11 1931-12-22 British Dyestuffs Corp Ltd Process for the preparation of solid bodies in finely divided states
US1728411A (en) * 1927-09-06 1929-09-17 Oliver O Howard Mixer
US2075403A (en) * 1932-06-21 1937-03-30 Geneva Processes Inc Apparatus for dispersing materials
US2044757A (en) * 1936-03-11 1936-06-16 Cross Matthew Forbes Method of dispersing particles and apparatus therefor
US2162778A (en) * 1936-05-02 1939-06-20 Raymond W Kent Manufacture of pile fabrics
US2313010A (en) * 1938-12-10 1943-03-02 Brudal Holger Apparatus for the producing of aqueous suspensions of clay
US2492421A (en) * 1945-03-31 1949-12-27 American Viscose Corp Viscose preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643876A (en) * 1969-12-11 1972-02-22 Richardson Co Automatic apparatus for supplying liquids to roller mills
RU2592905C1 (ru) * 2015-02-05 2016-07-27 Общество с ограниченной ответственностью "НПО ВТОРМ" Валковая машина

Also Published As

Publication number Publication date
CH308059A (de) 1955-06-30
DE1025702B (de) 1958-03-06

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