US3206070A - Method of discharging material from rotary kiln - Google Patents

Method of discharging material from rotary kiln Download PDF

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Publication number
US3206070A
US3206070A US285997A US28599763A US3206070A US 3206070 A US3206070 A US 3206070A US 285997 A US285997 A US 285997A US 28599763 A US28599763 A US 28599763A US 3206070 A US3206070 A US 3206070A
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US
United States
Prior art keywords
kiln
product
rotary kiln
edge
diagonally
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
US285997A
Other languages
English (en)
Inventor
Sasaki Hideo
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.)
Taiheiyo Cement Corp
Original Assignee
Onoda Cement Co Ltd
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 Onoda Cement Co Ltd filed Critical Onoda Cement Co Ltd
Application granted granted Critical
Publication of US3206070A publication Critical patent/US3206070A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F27B7/33—Arrangement of devices for discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/224—Discharge ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F27B7/32—Arrangement of devices for charging
    • F27B7/3205—Charging
    • F27B2007/3258—Charging at the open end of the drum
    • F27B2007/3264—Charging at the open end of the drum using special discharge means located around the discharge end, e.g. lifting scoops or a transversal annular partition

Definitions

  • the ununiform distribution of the product on the pan conveyor does not result in a uniform treatment, that is, a uniformly finished product. Therefore, it is required to distribute the product from the rotary kiln on the pan conveyor.
  • the product is of a considerable high temperature and therefore means for distributing such product uniformly must be simple and durable.
  • the present invention relates particularly to the method of distributing the product discharged from a rotary kiln, which comprises employing a rotary kiln having a discharge end wherein the edge thereof recedes diagonally, whereby the point from which the product falls in continuously changing axially of the kiln.
  • a rotary kiln having a discharge end wherein the edge thereof recedes diagonally, whereby the point from which the product falls in continuously changing axially of the kiln.
  • FIG. 1 shows a side-view of one form of apparatus suitable for carrying out the invention
  • FIG. 2 shows the developed figure of FIG. 1
  • FIG. 3 shows a side-view of another form.
  • the outlet end of the rotary kiln is formed by a line ABCDA as shown in FIG. 2.
  • Lines AB and CD are at right angles to the longitudinal axial line of the rotary kiln 1, a line BC recedes diagonally with the axial line and a line DA advances diagonally.
  • the range between X and Y is relatively limited, but when the outlet end of the rotary kiln 1 is expanded into a conical form and at least a part of the end is provided with a spiral edge, as shown in FIG. 3, the product slides down on the conical part and the distributing range thereof can be enlarged as compared with the case in FIG. 1, because the discharging velocity depends on the length of sliding, that is, the longer the length, the higher the initial velocity.
  • the method of distributing over a predetermined width the product to be discharged from an inclined rotary kiln which comprises employing a rotary kiln having at least a portion of the edge of the discharge end thereof lying in a plane extending diagonally to the axis of the kiln wherein as the kiln rotates a part of the edge recedes diagonally with the longitudinal direction and a part of the edge advances diagonally whereby the product discharged from the kiln is distributed within the range of a certain width since the falling point of the product is continually changing.
  • the method of distributing over a predetermined width the product discharged from an inclined rotary kiln which comprises employing a rotary kiln having at least half of the peripheral edge at the discharge end thereof lying in a plane normal to the axis of the kiln and the remainder of the peripheral edge cut back with portions lying in a plane extending diagonally of said axis wherein as the kiln rotates a part of the edge recedes diagonally from said'plane and another part advances diagonally whereby the falling point of the product is continually changed and the discharge from said kiln is distributed within the range of a certain width.
  • the method of distributing over a predetermined width the product discharged from an inclined rotary kiln which comprises employing a rotary kiln having at least half of the peripheral edge at the discharge end thereof lying in a plane normal to the axis of the kiln and the remainder of the peripheral edge out back with portions lying in a plane extending diagonally of said axis and a connecting portion lying in a plane normal to said axis wherein as the kiln rotates a part of the edge recedes diagonally from. said plane and a part advances diagonally whereby the falling point of the product is continually changed and the discharge from said kiln is distributed within the range of a certain width.
  • the method of distributing over a predetermined width the product discharged from an inclined rotary kiln which comprises employing a rotary kiln having a flaring flange extending from the discharge end of the kiln, said 4. flange extending from an edge that is normal to the axis of the kiln, said flange gradually increasing in width to a point diametrically opposite the narrowest portion of the flange whereby the falling point of the product is continually changed and the discharge from said kiln is distributed within the range of a certain width.
  • RAPHAEL M. LUPO Primary Examiner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
US285997A 1962-08-10 1963-06-06 Method of discharging material from rotary kiln Expired - Lifetime US3206070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3304362 1962-08-10

Publications (1)

Publication Number Publication Date
US3206070A true US3206070A (en) 1965-09-14

Family

ID=12375745

Family Applications (1)

Application Number Title Priority Date Filing Date
US285997A Expired - Lifetime US3206070A (en) 1962-08-10 1963-06-06 Method of discharging material from rotary kiln

Country Status (3)

Country Link
US (1) US3206070A (da)
DK (1) DK105747C (da)
GB (1) GB985963A (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109855423A (zh) * 2019-04-09 2019-06-07 厦工(三明)重型机器有限公司 一种化工转炉

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL85055C (da) * 1951-07-13
GB191221110A (en) * 1912-09-16 1913-03-06 Harry Ernest Waters Improvements in Ore Feeders.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191221110A (en) * 1912-09-16 1913-03-06 Harry Ernest Waters Improvements in Ore Feeders.
NL85055C (da) * 1951-07-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109855423A (zh) * 2019-04-09 2019-06-07 厦工(三明)重型机器有限公司 一种化工转炉

Also Published As

Publication number Publication date
DK105747C (da) 1966-10-31
GB985963A (en) 1965-03-10

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