JPS5750539A - Calcining furnace of powdered raw material such as cement raw material - Google Patents
Calcining furnace of powdered raw material such as cement raw materialInfo
- Publication number
- JPS5750539A JPS5750539A JP12407780A JP12407780A JPS5750539A JP S5750539 A JPS5750539 A JP S5750539A JP 12407780 A JP12407780 A JP 12407780A JP 12407780 A JP12407780 A JP 12407780A JP S5750539 A JPS5750539 A JP S5750539A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- waste gas
- raw material
- heat
- flames
- 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
- 239000002994 raw material Substances 0.000 title abstract 5
- 238000001354 calcination Methods 0.000 title abstract 4
- 239000004568 cement Substances 0.000 title 1
- 239000002912 waste gas Substances 0.000 abstract 7
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 230000005855 radiation Effects 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)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
PURPOSE:To make the temp. of waste gas lower than that of an induced draft fan, suppress the loss of the sensible heat of the waste gas, eventually lower the original unit of the quantity of heat of a calcining furnace and make the stable continuous operation of the device possible by improving the heat transfer efficiency of the calcining furnace. CONSTITUTION:A calcining furnace 3 is formed of a horizontal cylindrical shape wherein the flames by the combustion of fuel are formed in the axial direction roughly to the overall length of the furnace by a burner 5 at the center of the left end. The raw material discharged from a preheater 2 rides on the gaseous flow of a kiln waste gas supply pipe 7 via a raw mterial supply pipe 9, and flows into the furnace 3 in a tangential direction from the cylindrical side wall of the furnace 3. En route of going toward the other end while being swirled in the inside, it receives the radiation transfer heat of the flames of the burner 5, and the convectional transfer heat from kiln waste gas or the high temp. air such as cooler waste gas introduced through a secondary air supply pipe. Also it receives the agitation effect by the projections 10 of the inside wall of the furnace, whereby it is calcined with good efficiency. The calcined raw material is fed together with the waste gas via a conduit 8 to a separating cyclone 1, where it is separated from the waste gas and is calcined in a kiln 6. Since the raw material is thin in the central part of the furnace 3, the stable combustion of flames is maintained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55124077A JPS6036551B2 (en) | 1980-09-09 | 1980-09-09 | Calcining furnace for powder raw materials such as cement raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55124077A JPS6036551B2 (en) | 1980-09-09 | 1980-09-09 | Calcining furnace for powder raw materials such as cement raw materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5750539A true JPS5750539A (en) | 1982-03-25 |
| JPS6036551B2 JPS6036551B2 (en) | 1985-08-21 |
Family
ID=14876355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55124077A Expired JPS6036551B2 (en) | 1980-09-09 | 1980-09-09 | Calcining furnace for powder raw materials such as cement raw materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6036551B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT517589B1 (en) * | 2015-07-03 | 2017-03-15 | Ge Jenbacher Gmbh & Co Og | Piston for an internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222352A (en) * | 1975-08-13 | 1977-02-19 | Kurita Water Ind Ltd | Aerobic rotary type of waste water purifying equipment |
| JPS5238053A (en) * | 1975-09-16 | 1977-03-24 | Tomita Pharma | Method of maintaining freshness of unripe fruit during storing |
-
1980
- 1980-09-09 JP JP55124077A patent/JPS6036551B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222352A (en) * | 1975-08-13 | 1977-02-19 | Kurita Water Ind Ltd | Aerobic rotary type of waste water purifying equipment |
| JPS5238053A (en) * | 1975-09-16 | 1977-03-24 | Tomita Pharma | Method of maintaining freshness of unripe fruit during storing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6036551B2 (en) | 1985-08-21 |
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