US3811624A - Rotary tubular crusher - Google Patents

Rotary tubular crusher Download PDF

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Publication number
US3811624A
US3811624A US00293044A US29304472A US3811624A US 3811624 A US3811624 A US 3811624A US 00293044 A US00293044 A US 00293044A US 29304472 A US29304472 A US 29304472A US 3811624 A US3811624 A US 3811624A
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US
United States
Prior art keywords
drum
crusher
spacing means
rods
spacing
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
US00293044A
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English (en)
Inventor
J Giorgi
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.)
Fives Lille Cail
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Fives Lille Cail
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Filing date
Publication date
Application filed by Fives Lille Cail filed Critical Fives Lille Cail
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Publication of US3811624A publication Critical patent/US3811624A/en
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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
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers

Definitions

  • a rotary crusher comprises a cylindrical crusher drum rotating about a horizontal axis and inwardly project- [52] US. Cl. 241/176, 241/184 ing spacers Occupying only a Small part of the interior [5]] lllt. Cl. B026 17/10 Wall Surface of the drum and disposed in planes [58] new of Search 241/170 clined in respect of the drum axis or along curves so as 241/177 184 to support and space the freely moving crushing rods in the drum at least at two points at opposite sides of [56] References Cit-ed the center of gravity of the rods.
  • the present invention relates to improvements in a rotary tubular crusher comprising a cylindrical drum having a horizontal axis and containing freely moving rods forming crushing elements.
  • crushing of the material charged into the drum is effected, on the one hand, between the rods and, on the other hand, between the wall of the crushing drum and the rods.
  • the invention provides a crusher drum with a peripheral wall whose interior surface has projecting portions occupying only a small part of the surface and disposed along curves extending in planes inclined in respect'of the drum axis in such a manner that the rods are always supported on at least two points at respective sides of the center of gravity of the rods.
  • projecting portions may form one or several continuous ribs, or they may be distinct from'one another and inclined in respect of the direction of the curve in which they are disposed. If desired, the projectingportions may be provided only in the terminal parts of the crusher drum while the central drum part is free of such projecting portions.
  • peripheral wall of the crusher drum has screened ports for discharging the attrited material
  • these ports are preferably arranged upstream of the projecting portions in the direction of the advance of the material in the crusher drum.
  • FIG. 1 is a longitudinal section of a crusher drum with rods according to one embodiment.
  • FIG. 2 is a transverse section along line IIII of FIG. 1
  • FIG. 4 is a transverse section along line IVIV FIG. 3. 2
  • FIGS. 1 and 2 there is shown a cylindrical crusher drum having a horizontal axis about which extends a peripheral wall the ends of which are closed off by end walls 12 and 14 one of which, i.e., wall l2 has a central open-
  • FIG. 3 is similar to FIG. 1, showing another embodi- .rib 18 projecting inwardly from the interior of the drum wall and maintaining the crushing rods spaced from the wall.
  • This rib may be soldered to the interior surface of v the wall or be constituted by armor plating fixed to, or integral with, the wall.
  • the pitch and the axial length of the helical rib 18 are so chosen that the rods 16 will always rest on the rib at least at two points situated on respective sides of the center of gravity of -the rods during rotation of the drum.
  • the crushing rods will always remain spaced from the crusher wall, and no attrition of the material charged into the drum will take place between the crushing rods and the drum wall whereby the production of super fines is avoided.
  • the drum wall has either along its entire length or, as
  • a series of peripheral ports 20 which have screens through which the attrited material may be discharged from the drum at the desired particle size.
  • the discharge ports are arranged adjacent the spacing rib l8 and upstream in respect thereto relative. to the direction of advance of the material in the drum, which is indicated by a horizontal arrow in FIG. I.
  • the attrited material is discharged as it is produced.
  • the rib 18 forms an obstacle to the further advance of the attrited material which accordingly accumulates on the screens of the ports, which facilitates the screening of the material.
  • the screens are not blocked because the attrited material is not compacted by the crushing rods which are maintained spaced from the drum wall by rib 18.
  • the screened material discharged through ports 20 may be gathered in a fixed casing surrounding the crusher drum.
  • the direction of the helical spacing rib 18 may be chosen in respect to the direction of rotation of the drum so as to accelerate the advance of the material in the drum, or to retard this advance.
  • serveral helical ribs of the same pitch, or of different pitches, may be provided. Furthermore, the
  • ribs may take different forms by disposing them along curves different from helices as long as these curves do not extend in a plane perpendicular to the axis of the drum 10. In any event, however, only a very small fraction of the total surface of the interior of the drum wall must be covered by the spacing rib or ribs so that no substantial attrition of the material takes place between the rods and the spacing rib or ribs.
  • the central part of the helical rib 18 of FIG. 1 may be analogously omitted.
  • the series of spacing segments 22 may be disposed along curves different from helices under the conditions described hereinabove in connection with the embodiment of FIG. 1.
  • a rotary tubular crusher comprising 1. a cylindrical crusher drum having a. a horizontal axis and b. a wall extending peripherally about the axis and having an interior surface; 2. spacing means projecting inwardly from the interior surface of the drum wall, the spacing means a. occupying only a small part of the surface and by disposed along curves extending in planes inclined in respect of the drum axis; and 3. freely moving crushing rods contained in the drum,
  • the spacing means being so disposed that the rods are always supported thereon, and spaced thereby from the interior wall surface, at least at two points at opposite sides of the center of gravity of the rods.
  • the rotary tubular crusher of claim 1 wherein the spacing means comprises spacing portions distinct from one another, the spacing portions being disposed along a curve and each spacing portion being inclined in respect of the direction of the curve.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
US00293044A 1971-09-29 1972-09-28 Rotary tubular crusher Expired - Lifetime US3811624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7134998A FR2154897A5 (enExample) 1971-09-29 1971-09-29

Publications (1)

Publication Number Publication Date
US3811624A true US3811624A (en) 1974-05-21

Family

ID=9083636

Family Applications (1)

Application Number Title Priority Date Filing Date
US00293044A Expired - Lifetime US3811624A (en) 1971-09-29 1972-09-28 Rotary tubular crusher

Country Status (9)

Country Link
US (1) US3811624A (enExample)
BE (1) BE788708A (enExample)
DE (1) DE2247527C3 (enExample)
FR (1) FR2154897A5 (enExample)
GB (1) GB1397801A (enExample)
IT (1) IT967465B (enExample)
LU (1) LU66170A1 (enExample)
OA (1) OA04264A (enExample)
SE (1) SE373048B (enExample)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183213A (en) * 1991-07-30 1993-02-02 Knez Building Materials Company Method for recycling wallboard
US5238195A (en) * 1991-07-30 1993-08-24 Knez Building Materials Company Method for recycling wallboard
RU2185885C2 (ru) * 2000-05-25 2002-07-27 Институт горного дела Севера СО РАН Способ дезинтеграции горных пород и роторная мельница для его осуществления
RU2190473C2 (ru) * 2001-01-12 2002-10-10 Открытое акционерное общество "ТЯЖМАШ" Устройство для измельчения кусковых материалов
RU2192309C2 (ru) * 2000-11-28 2002-11-10 ООО Фирма "РОСТ - Л" Барабанная мельница для приготовления угольного жидкого топлива
US20070243018A1 (en) * 2006-04-13 2007-10-18 Andre Roy Apparatus and method for processing vegetative material
US20140061019A1 (en) * 2012-02-22 2014-03-06 John J. Hagerty, JR. Method and Apparatus for Reducing Organic Waste by Rotary Desiccation
CN107597308A (zh) * 2017-11-13 2018-01-19 福州大学 一种罐体内壁带增强双肋的通气体反应球磨罐及其使用方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52136455A (en) * 1976-05-11 1977-11-15 Nippon Jiriyoku Senkou Kk Rotary crusher
DE3026074A1 (de) * 1980-07-10 1982-02-04 Basf Ag, 6700 Ludwigshafen Kugelmuehle mit einbauten
GB2129706A (en) * 1982-11-10 1984-05-23 Chung Ding Rubber Co Limited Improved ball grinder
RU2712898C1 (ru) * 2019-05-17 2020-01-31 Акционерное общество "Торговый Дом "Кварц" Эластомерная футеровка цапфы барабанной мельницы и модульный элемент футеровки цапфы
RU2712899C1 (ru) * 2019-06-05 2020-01-31 Акционерное общество "Торговый Дом "Кварц" Футеровка цапфы барабанной мельницы и комплект для ее изготовления

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180581A (en) * 1962-07-19 1965-04-27 Reserve Mining Co Ball mill discharge trommel
US3380670A (en) * 1963-07-25 1968-04-30 Rech S Geol Et Minieres Bureau Rotating grinders

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180581A (en) * 1962-07-19 1965-04-27 Reserve Mining Co Ball mill discharge trommel
US3380670A (en) * 1963-07-25 1968-04-30 Rech S Geol Et Minieres Bureau Rotating grinders

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183213A (en) * 1991-07-30 1993-02-02 Knez Building Materials Company Method for recycling wallboard
US5238195A (en) * 1991-07-30 1993-08-24 Knez Building Materials Company Method for recycling wallboard
RU2185885C2 (ru) * 2000-05-25 2002-07-27 Институт горного дела Севера СО РАН Способ дезинтеграции горных пород и роторная мельница для его осуществления
RU2192309C2 (ru) * 2000-11-28 2002-11-10 ООО Фирма "РОСТ - Л" Барабанная мельница для приготовления угольного жидкого топлива
RU2190473C2 (ru) * 2001-01-12 2002-10-10 Открытое акционерное общество "ТЯЖМАШ" Устройство для измельчения кусковых материалов
US20070243018A1 (en) * 2006-04-13 2007-10-18 Andre Roy Apparatus and method for processing vegetative material
US7731111B2 (en) * 2006-04-13 2010-06-08 Mill Creek Enterprises, Inc. Apparatus and method for processing vegetative material
US20140061019A1 (en) * 2012-02-22 2014-03-06 John J. Hagerty, JR. Method and Apparatus for Reducing Organic Waste by Rotary Desiccation
CN107597308A (zh) * 2017-11-13 2018-01-19 福州大学 一种罐体内壁带增强双肋的通气体反应球磨罐及其使用方法
CN107597308B (zh) * 2017-11-13 2023-04-25 福州大学 一种罐体内壁带增强双肋的通气体反应球磨罐及其使用方法

Also Published As

Publication number Publication date
IT967465B (it) 1974-02-28
SE373048B (enExample) 1975-01-27
OA04264A (fr) 1979-12-31
DE2247527A1 (de) 1973-04-12
DE2247527B2 (enExample) 1974-05-16
GB1397801A (en) 1975-06-18
DE2247527C3 (de) 1974-12-19
FR2154897A5 (enExample) 1973-05-18
BE788708A (fr) 1973-01-02
LU66170A1 (enExample) 1973-01-17

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