JPS5446174A - Calcining furnace of fluidized bed type - Google Patents
Calcining furnace of fluidized bed typeInfo
- 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
Links
- 238000001354 calcination Methods 0.000 title abstract 2
- 239000000446 fuel Substances 0.000 abstract 5
- 238000002485 combustion reaction Methods 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 239000000567 combustion gas Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5664211A (en) * | 1979-10-26 | 1981-06-01 | Babcock Hitachi Kk | Starting of fluidized bed furnace |
-
1977
- 1977-09-21 JP JP11370277A patent/JPS5446174A/en active Granted
Cited By (1)
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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