GB1291974A - Improvements in treating particulate materials - Google Patents

Improvements in treating particulate materials

Info

Publication number
GB1291974A
GB1291974A GB184670A GB184670A GB1291974A GB 1291974 A GB1291974 A GB 1291974A GB 184670 A GB184670 A GB 184670A GB 184670 A GB184670 A GB 184670A GB 1291974 A GB1291974 A GB 1291974A
Authority
GB
United Kingdom
Prior art keywords
cylinders
pipe
casing
shell
heating tube
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
Application number
GB184670A
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.)
FLSmidth and Co AS
Original Assignee
FLSmidth and Co AS
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 FLSmidth and Co AS filed Critical FLSmidth and Co AS
Publication of GB1291974A publication Critical patent/GB1291974A/en
Expired legal-status Critical Current

Links

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 peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/24—Seals between rotary and stationary parts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • 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 peculiar to rotary-drum furnaces
    • F27B7/2016—Arrangements of preheating devices for the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D99/0035—Heating indirectly through a radiant surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1291974 Rotary kilns; drying particulate material F L SMIDTH & CO A/S 14 Jan 1970 [15 Jan 1969] 1846/70 Headings F4B and F4G A rotary kiln for roasting ores or drying particulate material comprises a shell 10 with refractory lining 18, a feed tube 41 entering an unlined upper portion 20 of the shell with which are associated preheating cylinders 24, a discharge pipe 57 extending from a stationary casing 53 receiving material from planetary cooling cylinders 47, and an axial heating tube 33 receiving hot furnace gases through a pipe 67 and discharging waste gases through radial branches 39 into a housing 30 surrounding the preheating cylinders 24. Feed tube 41 extendings through a fixed casing 42 and known labyrinth seals 45 and 55 are disposed between the kiln shell and this casing and also casing 53. A treatment gas, which may be admitted through pipe 58, passes over a guiding member 59, through ports 22 into the kiln and discharges through pipe 66. An additional furnace (44, Figs. 1 and 5) may open into housing 30. The guiding member 59 comprises a funnel shaped member 60 enclosing a cylindrical member 61 closed by end plates 63 and 64, the former being formed with openings receiving delivery conduits 51 from the cooling cylinders 47. Guiding member 59 shields the cooled material from the extension 62 of the heating tube 33 as said material passes to discharge pipes 57. Cylinders 47 may be additionally cooled by power driven fans or by water sprays. Expansion bellows 29, 46 and 68, and 71 are provided respectively on the preheating cylinders 24, the heating tube 33 and the cooling cylinder 47. The particulate material may include oxide or sulphide ores of Ni, Co, Mn, Fe, Zn, Cd, Cu and A2 or sulphide ores of Pb and Sn.
GB184670A 1969-01-15 1970-01-14 Improvements in treating particulate materials Expired GB1291974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79145469A 1969-01-15 1969-01-15

Publications (1)

Publication Number Publication Date
GB1291974A true GB1291974A (en) 1972-10-04

Family

ID=25153783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB184670A Expired GB1291974A (en) 1969-01-15 1970-01-14 Improvements in treating particulate materials

Country Status (8)

Country Link
JP (1) JPS5016726B1 (en)
AT (1) AT301192B (en)
BE (1) BE744489A (en)
CA (1) CA922521A (en)
DE (1) DE2001592C3 (en)
DK (1) DK152298C (en)
FR (1) FR2028397A1 (en)
GB (1) GB1291974A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112547277A (en) * 2020-10-26 2021-03-26 克拉玛依东方国源环保科技有限公司 Method and device for producing regenerated masonry mortar and concrete

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110655341B (en) * 2019-11-01 2023-10-13 中铁工程装备集团有限公司 System and method for improving chemical activity of steel slag
JP2021167460A (en) * 2020-04-13 2021-10-21 住友金属鉱山株式会社 Method for smelting oxide ore

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE420041C (en) * 1923-05-12 1925-10-14 Patentaktiebolaget Groendal Ra Longitudinally divided drum furnace
GB275222A (en) * 1926-07-27 1928-01-12 Albert Fritz Meyerhofer Improvements in and relating to furnaces
US2007121A (en) * 1933-02-15 1935-07-02 Johannsen Friedrich Roasting furnace
DE1922985U (en) * 1965-06-30 1965-09-02 Benno Schilde Maschb A G ROTATING DRUM FOR DRAINING GYPSUM DOUBLE HYDRATE.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112547277A (en) * 2020-10-26 2021-03-26 克拉玛依东方国源环保科技有限公司 Method and device for producing regenerated masonry mortar and concrete

Also Published As

Publication number Publication date
AT301192B (en) 1972-08-25
BE744489A (en) 1970-07-15
JPS5016726B1 (en) 1975-06-16
DK152298B (en) 1988-02-15
DK152298C (en) 1988-07-11
FR2028397A1 (en) 1970-10-09
DE2001592B2 (en) 1979-07-26
DE2001592C3 (en) 1980-03-27
CA922521A (en) 1973-03-13
DE2001592A1 (en) 1970-07-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee