JPS56100627A - Calcining method of powder raw material - Google Patents
Calcining method of powder raw materialInfo
- Publication number
- JPS56100627A JPS56100627A JP312380A JP312380A JPS56100627A JP S56100627 A JPS56100627 A JP S56100627A JP 312380 A JP312380 A JP 312380A JP 312380 A JP312380 A JP 312380A JP S56100627 A JPS56100627 A JP S56100627A
- Authority
- JP
- Japan
- Prior art keywords
- kiln
- raw material
- pressure losses
- damper
- rate
- 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.)
- Pending
Links
- 239000002994 raw material Substances 0.000 title abstract 6
- 238000001354 calcination Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 abstract 3
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 230000000630 rising effect Effects 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000000725 suspension 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)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
PURPOSE:To operate a secondary air duct damper of a combustion air system in its full open position, decrease pressure losses and save energy, by regulating the pressure losses of a kiln system by changing the rate of raw material feed into a rising duct of a kiln thereby maintaining a balance of the draft between the kiln system and the combustion air system. CONSTITUTION:The powder raw material preheated by a suspension preheater flows through a raw material chute 14 from the lowermost stage cyclone 13 and is distributed by a branching damper 27. By way of raw material chutes 28, 29, the one is charged into a kiln rising duct 20, and the other into the lower body 2b of a calcining furnace 2. At this time, the higher the rate of the raw materials to be fed into gas, the higher the pressure losses; therefore, the regulation of the pressure losses in the kiln system is made possible by changing the rate of the distribution. Thereupon, said pressure losses are regulated by controlling the damper 27, with the detected value of an oxygen concn. analyzer 30 at the kiln end, whereby the draft balance of the kiln system and the combustion air system is taken. In this way it is not necessary to set such pressure loss as would be generated by the disposition of a stationary orifice. The pressure loss can be held at loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP312380A JPS56100627A (en) | 1980-01-17 | 1980-01-17 | Calcining method of powder raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP312380A JPS56100627A (en) | 1980-01-17 | 1980-01-17 | Calcining method of powder raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56100627A true JPS56100627A (en) | 1981-08-12 |
Family
ID=11548574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP312380A Pending JPS56100627A (en) | 1980-01-17 | 1980-01-17 | Calcining method of powder raw material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56100627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065752A (en) * | 1984-06-29 | 1985-04-15 | 株式会社神戸製鋼所 | Raw material powder calcining process |
| CN102878811A (en) * | 2012-09-28 | 2013-01-16 | 长兴国盛耐火材料有限公司 | Special prefabricated part for tertiary air duct bifurcation positions |
-
1980
- 1980-01-17 JP JP312380A patent/JPS56100627A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065752A (en) * | 1984-06-29 | 1985-04-15 | 株式会社神戸製鋼所 | Raw material powder calcining process |
| JPH0152339B2 (en) * | 1984-06-29 | 1989-11-08 | Kobe Steel Ltd | |
| CN102878811A (en) * | 2012-09-28 | 2013-01-16 | 长兴国盛耐火材料有限公司 | Special prefabricated part for tertiary air duct bifurcation positions |
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