JPS5446174A - Calcining furnace of fluidized bed type - Google Patents

Calcining furnace of fluidized bed type

Info

Publication number
JPS5446174A
JPS5446174A JP11370277A JP11370277A JPS5446174A JP S5446174 A JPS5446174 A JP S5446174A JP 11370277 A JP11370277 A JP 11370277A JP 11370277 A JP11370277 A JP 11370277A JP S5446174 A JPS5446174 A JP S5446174A
Authority
JP
Japan
Prior art keywords
air chamber
air
fuel
fluidized bed
combustion
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.)
Granted
Application number
JP11370277A
Other languages
Japanese (ja)
Other versions
JPS5532419B2 (en
Inventor
Kunihisa Fujiwara
Yoshimine Hebihami
Toshio Katayama
Hiromi Osaka
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.)
Mitsubishi Heavy Industries Ltd
Yoshizawa Lime Industry Co Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Yoshizawa Lime Industry 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 Mitsubishi Heavy Industries Ltd, Yoshizawa Lime Industry Co Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP11370277A priority Critical patent/JPS5446174A/en
Publication of JPS5446174A publication Critical patent/JPS5446174A/en
Publication of JPS5532419B2 publication Critical patent/JPS5532419B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B01J6/004—Calcining using hot gas streams in which the material is moved

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

PURPOSE:To provide a calcining furnace described in the titled which makes it possible to control the quantity of calcined products without decrease in combustion efficiency, by constituting it so as to make it possible to control the quantities of fuel and air which are injected separately into each air chamber made by dividing an air chamber into plural chambers. CONSTITUTION:To an annular air chamber 3' and a cylindrical air chamber 3 divided separately is fed fuel through separate fuel feed pipes 4', 4, and combustion air by means of separate blowers 5', 5 respectively. When raw material charge through a shoot 6 is decreased, fuel and air related, for example, to the air chamber 3 is stopped, i.e., fuel and air related to the air chamber 3' is fed to a fluidized bed 2' with a valve 15 and a damper 16 closed totally. Particles of a fluidized bed 2 present above the air chamber 3 comes to a standstill because no combustion gas passes the bed. Dotted lines show a boundary between stationary and fluidizing regions of the particles. Thereby, effective cross sectional area of the furnace is decreased, decreasing the quantity of calcined products with little decrease in combustion efficiency.
JP11370277A 1977-09-21 1977-09-21 Calcining furnace of fluidized bed type Granted JPS5446174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11370277A JPS5446174A (en) 1977-09-21 1977-09-21 Calcining furnace of fluidized bed type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11370277A JPS5446174A (en) 1977-09-21 1977-09-21 Calcining furnace of fluidized bed type

Publications (2)

Publication Number Publication Date
JPS5446174A true JPS5446174A (en) 1979-04-11
JPS5532419B2 JPS5532419B2 (en) 1980-08-25

Family

ID=14618998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11370277A Granted JPS5446174A (en) 1977-09-21 1977-09-21 Calcining furnace of fluidized bed type

Country Status (1)

Country Link
JP (1) JPS5446174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5664211A (en) * 1979-10-26 1981-06-01 Babcock Hitachi Kk Starting of fluidized bed furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5664211A (en) * 1979-10-26 1981-06-01 Babcock Hitachi Kk Starting of fluidized bed furnace

Also Published As

Publication number Publication date
JPS5532419B2 (en) 1980-08-25

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