US3782646A - Roller mill of the edge runner type - Google Patents

Roller mill of the edge runner type Download PDF

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Publication number
US3782646A
US3782646A US00248643A US3782646DA US3782646A US 3782646 A US3782646 A US 3782646A US 00248643 A US00248643 A US 00248643A US 3782646D A US3782646D A US 3782646DA US 3782646 A US3782646 A US 3782646A
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United States
Prior art keywords
rolls
ring
roller mill
edge runner
loading
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Expired - Lifetime
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US00248643A
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English (en)
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H Brundiek
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/007—Mills with rollers pressed against a rotary horizontal disc

Definitions

  • the invention relates to an edge runner type roller mill, and more particularly to such a mill with a three roll system, in the case of which the rolls are adapted to cooperate with a rotary grinding table under spring or hydraulic loading pressure and a ring, arranged above the grinding rolls holds the rolls in a three point system.
  • a disadvantage with known edge runner type roller mills is that the system is tied to the use of three rolls so that the rolls make proper engagment with an even distribution of pressing forces. Accordingly, as a result, the dimensions of such a roller mill are limited for economic reasons because the rolls cannot, for economic reasons, exceed a certain size. Furthermore, it is difficult to control bearing pressures in the case of very large rolls.
  • One object of the present invention is that of developing a construction, using the three roll system, which allows an increase in the size of the mill while observing economic limits, so that the capacity can be increased without unduly increasing the amount of space required.
  • the invention consists in an edge runner type roller mill comprising three rolls adapted to cooperate with a grinding table, loading means for the rolls, a first ring arranged above the rolls for applying force to the rolls in accordance with a three point system, a yoke for holding down the ring, a second ring arranged in operative relationship to the first-mentioned ring for loading three further rolls alternating with the first-mentioned rolls and adapted with them to cooperate with the grinding table.
  • the inner parts of the two rings are arranged immediately one above the other, while one ring has recesses on its outer side, whose depth is approximately twice the thickness of the two rings together on the inner side, the other ring having projections extending into the recesses in a complementary manner to fill the recesses.
  • Such a construction offers the possiblity of using two roll systems with six rolls in all while using the same basic constructional units.
  • a substantially larger type of mill can be constructed.
  • FIG. 1 shows diagrammatically in side view an edge runner type roller mill in accordance with the invention in the case of which the guide rings or loading rings are subjected to spring pressure.
  • FIG. 2 shows a second embodiment in a similar view in the case of which the guide or loading rings are acted upon by hydraulic pressure.
  • FIG. 3 shows in plan view diagrammatically the arrangement of the guide or loading rings.
  • FIG. 4 shows a plan view indicated in the arrangement of the two roll systems.
  • FIG. 5 shows the arrangement and construction of the two-loading rings and their matching configuration.
  • FIG. 1 firstly shows the main conventional parts of an edge runner type roller mill, comprising grinding rolls 2, 6 which are acted upon by levers 3 and 7.
  • the grinding rolls 2 and 6 run on a rotating grinding table 17, which is driven via a drive 18 and a drive shaft 19.
  • the roll 2 belongs to a system 1 with a loading ring 5, which is connected with the lever 3 via balls 4.
  • the roll 6 belongs to a system 2 with a loading ring 9, with which the lever 7 is connected in an articulated manner, for example by means of balls 8.
  • the pressing force acting on the loading rings 5 and 9 is exerted by a pressing ring 10, which is connected via springs 28 with the rings 5 and 9.
  • the pressing ring 10 is held by parts 11 and 12, which, via joints or balls 15, and 16 act on the pressing ring 10 and which underneath have articulated bearing means 13 and 14.
  • FIG. 2 which only serves to show the differently constructed parts has an oil pressure cylinder 20 on the end ofa pulling rod 12.
  • the oil pressure cylinder 20 is supplied with oil and the pressure by a supply line 20'.
  • the articulated arrangement 14 underneath the oil pressure cylinder is in principle the same as that previously described.
  • FIG. 3 shows a plan view of the: arrangement of the rings 5 and 9.
  • the loading ring 5 belongs to system 1i and the loading ring 9 to system 2.
  • FIG. 4 shows diagrammatically a plan view of the arrangement of the grinding rolls 2 which belong to system I and correspondingly the arrangement of the grinding rolls 6 which belong to system 2.
  • FIG. 5 shows, in the upper arrangement, the two rings 5 and 9, whose inner parts 23 and 26 are arranged immediately above one another. From the views underneath this it can be seen that the loading ring 5 of the system It has projections 21 extending into recesses 24 of the loading ring 9 which belongs to the system 2. The construction is, furthermore, so designed that the projections 21 have their side faces 22 lying directly against side faces 25 of the recesses 24.
  • An edge runner type roller mill comprising a grinding table, three rolls adapted to cooperate with said grinding table, a loading means for the rolls, a first ring arranged above the rolls for applying force to the rolls in accordance with a three point system, a yoke for holding down the first ring, and a second ring arranged in operative relation to the first ring for loading three further rolls alternating with the first mentioned rolls and adapted with them to cooperate with the grinding table.
  • edge runner type roller mill in accordance with claim 1, in which the inner parts of the first and second rings are arranged immediately one above the other, one ring having recesses on its outer side, whose depth is approximately twice the thickness of the first and second rings together on the inner side, and the type.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
US00248643A 1971-05-18 1972-04-28 Roller mill of the edge runner type Expired - Lifetime US3782646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2124521A DE2124521B2 (de) 1971-05-18 1971-05-18 Walzenschüsselmühle

Publications (1)

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US3782646A true US3782646A (en) 1974-01-01

Family

ID=5808177

Family Applications (1)

Application Number Title Priority Date Filing Date
US00248643A Expired - Lifetime US3782646A (en) 1971-05-18 1972-04-28 Roller mill of the edge runner type

Country Status (4)

Country Link
US (1) US3782646A (de)
CH (1) CH537752A (de)
DE (1) DE2124521B2 (de)
GB (1) GB1336119A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072276A (en) * 1977-04-07 1978-02-07 Foster Wheeler Energy Corporation Pulverizer with caster roller assembly
US4133488A (en) * 1976-09-16 1979-01-09 Polysius Ag Roller mill with removable separator structure
US4235385A (en) * 1978-09-06 1980-11-25 Loesche Gmbh Roller mill with liquid-gas suspension
US4382558A (en) * 1979-03-19 1983-05-10 F. L. Smidth & Co. Roller mill
US4382561A (en) * 1980-02-18 1983-05-10 F. L. Smidth & Co. Vertical roller mill
US4705223A (en) * 1984-11-30 1987-11-10 Deutsche Babcock Werke Aktiengesellschaft Bowl mill
RU2176552C2 (ru) * 1997-04-15 2001-12-10 Фсб Мельница
US6609669B2 (en) 2001-09-07 2003-08-26 The Babcock & Wilcox Company Hydraulic loading system for ball and ring pulverizers
US20110068203A1 (en) * 2008-03-20 2011-03-24 Dirk Hoffmann Roller grinding mill
US20230191418A1 (en) * 2020-04-16 2023-06-22 Loesche Gmbh Key grinding pan segment, grinding pan segment system, and method for same
EP4499316A4 (de) * 2022-03-24 2026-03-18 Moviator Oy Feinschleifvorrichtung und verfahren zum schleifen von körnigem material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1507010A (en) * 1976-07-27 1978-04-12 Smidth & Co As F L Roller mill
DE3212724A1 (de) * 1982-04-05 1983-10-13 Gebr. Pfeiffer Ag, 6750 Kaiserslautern Walzenmuehle
NL8301678A (nl) * 1983-05-11 1984-12-03 Johan Massee Forceermachine.
DE10343218B4 (de) 2003-09-12 2006-05-04 Loesche Gmbh Sicherheitssystem für eine Wälzmühle und Verfahren zur Herstellung von Zement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083920A (en) * 1961-05-20 1963-04-02 Pfeiffer Barbarossawerke A G G Grinding mill
US3458142A (en) * 1965-12-30 1969-07-29 Wolfgang Berz Roller-crushing mill
US3658264A (en) * 1969-11-15 1972-04-25 Pfeiffer Barbarossawerke Ag Fa Roller mill drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3083920A (en) * 1961-05-20 1963-04-02 Pfeiffer Barbarossawerke A G G Grinding mill
US3458142A (en) * 1965-12-30 1969-07-29 Wolfgang Berz Roller-crushing mill
US3658264A (en) * 1969-11-15 1972-04-25 Pfeiffer Barbarossawerke Ag Fa Roller mill drive

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133488A (en) * 1976-09-16 1979-01-09 Polysius Ag Roller mill with removable separator structure
US4072276A (en) * 1977-04-07 1978-02-07 Foster Wheeler Energy Corporation Pulverizer with caster roller assembly
US4235385A (en) * 1978-09-06 1980-11-25 Loesche Gmbh Roller mill with liquid-gas suspension
US4382558A (en) * 1979-03-19 1983-05-10 F. L. Smidth & Co. Roller mill
US4382561A (en) * 1980-02-18 1983-05-10 F. L. Smidth & Co. Vertical roller mill
US4705223A (en) * 1984-11-30 1987-11-10 Deutsche Babcock Werke Aktiengesellschaft Bowl mill
RU2176552C2 (ru) * 1997-04-15 2001-12-10 Фсб Мельница
US6609669B2 (en) 2001-09-07 2003-08-26 The Babcock & Wilcox Company Hydraulic loading system for ball and ring pulverizers
US20110068203A1 (en) * 2008-03-20 2011-03-24 Dirk Hoffmann Roller grinding mill
US8172168B2 (en) 2008-03-20 2012-05-08 Gebr. Pfeiffer Ag Roller grinding mill
US20230191418A1 (en) * 2020-04-16 2023-06-22 Loesche Gmbh Key grinding pan segment, grinding pan segment system, and method for same
US12415187B2 (en) * 2020-04-16 2025-09-16 Loesche Gmbh Key grinding pan segment, grinding pan segment system, and method for same
EP4499316A4 (de) * 2022-03-24 2026-03-18 Moviator Oy Feinschleifvorrichtung und verfahren zum schleifen von körnigem material

Also Published As

Publication number Publication date
DE2124521A1 (de) 1972-12-07
CH537752A (de) 1973-06-15
GB1336119A (en) 1973-11-07
DE2124521B2 (de) 1979-10-18

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