GB653357A - Improvements in calcining decrepitating rocks including limestone - Google Patents

Improvements in calcining decrepitating rocks including limestone

Info

Publication number
GB653357A
GB653357A GB1684348A GB1684348A GB653357A GB 653357 A GB653357 A GB 653357A GB 1684348 A GB1684348 A GB 1684348A GB 1684348 A GB1684348 A GB 1684348A GB 653357 A GB653357 A GB 653357A
Authority
GB
United Kingdom
Prior art keywords
bed
dust
pipe
supplied
zone
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
GB1684348A
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.)
Dorr Co
Original Assignee
Dorr Co
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 Dorr Co filed Critical Dorr Co
Priority to GB1684348A priority Critical patent/GB653357A/en
Publication of GB653357A publication Critical patent/GB653357A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/10—Preheating, burning calcining or cooling
    • C04B2/106—Preheating, burning calcining or cooling in fluidised bed furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

<PICT:0653357/III/1> Decrepitatable dust-forming solids, particularly lime-bearing materials, are heat-treated by a multi-bed fluidized process, in which the gases rising from a bed are treated for the reduction of their dust content before being passed to the next bed. As shown, the finely-divided material is fed by screw 14 to a preheating bed 62, overflowing through pipe 53 to calcining bed 20, and thence through pipe 21 to cooling bed 35 from which it is discharged through pipe 46. Air is supplied to windbox 34 to fluidize bed 35, and passes through partition 25 into bed 20 wherein it combines with fuel supplied through conduit 22. The dust-laden gases pass through pipe 40 to cyclone 42, the separated dust being sent either into the cooling zone or combined with the cooled product. The dust-diminished gases pass to zone 66 and thence through partition 50 into the preheating zone. In starting up the apparatus, additional fluid or fluidized fuel is supplied through conduit 28. Hydrocarbon oils, coal gas, natural gas and powdered coal are specified as fuels.
GB1684348A 1948-06-23 1948-06-23 Improvements in calcining decrepitating rocks including limestone Expired GB653357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1684348A GB653357A (en) 1948-06-23 1948-06-23 Improvements in calcining decrepitating rocks including limestone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1684348A GB653357A (en) 1948-06-23 1948-06-23 Improvements in calcining decrepitating rocks including limestone

Publications (1)

Publication Number Publication Date
GB653357A true GB653357A (en) 1951-05-16

Family

ID=10084676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1684348A Expired GB653357A (en) 1948-06-23 1948-06-23 Improvements in calcining decrepitating rocks including limestone

Country Status (1)

Country Link
GB (1) GB653357A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169982A2 (en) * 1984-06-05 1986-02-05 Deutsche Babcock Anlagen Aktiengesellschaft Shaft furnace
EP0222078A2 (en) * 1985-11-12 1987-05-20 Deutsche Babcock Anlagen Aktiengesellschaft Process and plant for producing aggregate for concrete from washery tailings
CN107062904A (en) * 2017-04-18 2017-08-18 胡光雄 A kind of indirect roaster of carbide slag
CN117735864A (en) * 2023-12-04 2024-03-22 南京赤博环保科技有限公司 Dry lime mixing digestion secondary device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169982A2 (en) * 1984-06-05 1986-02-05 Deutsche Babcock Anlagen Aktiengesellschaft Shaft furnace
EP0169982A3 (en) * 1984-06-05 1986-08-27 Deutsche Babcock Anlagen Aktiengesellschaft Shaft furnace
EP0222078A2 (en) * 1985-11-12 1987-05-20 Deutsche Babcock Anlagen Aktiengesellschaft Process and plant for producing aggregate for concrete from washery tailings
EP0222078A3 (en) * 1985-11-12 1988-05-25 Deutsche Babcock Anlagen Aktiengesellschaft Process and plant for producing aggregate for concrete from washery tailings
CN107062904A (en) * 2017-04-18 2017-08-18 胡光雄 A kind of indirect roaster of carbide slag
CN117735864A (en) * 2023-12-04 2024-03-22 南京赤博环保科技有限公司 Dry lime mixing digestion secondary device

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