JPS56124436A - Calcination of powder stock material - Google Patents
Calcination of powder stock materialInfo
- Publication number
- JPS56124436A JPS56124436A JP2619280A JP2619280A JPS56124436A JP S56124436 A JPS56124436 A JP S56124436A JP 2619280 A JP2619280 A JP 2619280A JP 2619280 A JP2619280 A JP 2619280A JP S56124436 A JPS56124436 A JP S56124436A
- Authority
- JP
- Japan
- Prior art keywords
- stock material
- fuel
- duct
- calcination
- conduit
- 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
- 239000000463 material Substances 0.000 title abstract 7
- 239000000843 powder Substances 0.000 title abstract 5
- 238000001354 calcination Methods 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 abstract 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 2
- 230000002829 reductive effect Effects 0.000 abstract 2
- 239000002912 waste gas Substances 0.000 abstract 2
- 239000004568 cement Substances 0.000 abstract 1
- 239000003245 coal Substances 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 238000000034 method Methods 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
- B01J6/002—Calcining using rotating drums
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)
- Treating Waste Gases (AREA)
Abstract
PURPOSE:To carry out the calcination of a stock material by supplying an adequate amount of a fuel to a conduit supplying the preheated powder stock material to a raiser duct to hold an interior of the riser duct under a reductive atmosphere to remove nitrogen oxides in a kiln waste gas effectively. CONSTITUTION:The preheated powder stock material is supplied to the riser duct 4 from a preheated stock material conduit 7. To an appropriate position of said conduit 7, a supply apparatus 8 of a fuel such as a heavy oil or a fine powder coal is provided and the fuel is united into the powder stock material. Further, a high temp. waste gas from a rotary kiln 12 is introduced into the riser duct 4. In this case, a carbon monoxide concn. is measured by a carbon monoxide analyser 13 provided to an upper part of the duct 4 and, based on the resulting valve, a flow amount control vlave 15 is controlled through a controller 14 to control a supply amount of the fuel. By the above described method, the maintaenance of a reductive atmosphere in the riser duct 4 is made easy and the calcination of a cement stock material or the like can be carried out by a simplified apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55026192A JPS6012899B2 (en) | 1980-03-04 | 1980-03-04 | Calcination method of powder raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55026192A JPS6012899B2 (en) | 1980-03-04 | 1980-03-04 | Calcination method of powder raw materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56124436A true JPS56124436A (en) | 1981-09-30 |
| JPS6012899B2 JPS6012899B2 (en) | 1985-04-04 |
Family
ID=12186624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55026192A Expired JPS6012899B2 (en) | 1980-03-04 | 1980-03-04 | Calcination method of powder raw materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012899B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560412A (en) * | 1983-04-02 | 1985-12-24 | Krupp Polysius Ag | White cement production |
| US4808108A (en) * | 1985-03-22 | 1989-02-28 | Krupp Polysius Ag | Method and apparatus for the heat treatment of fine-grained material |
-
1980
- 1980-03-04 JP JP55026192A patent/JPS6012899B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560412A (en) * | 1983-04-02 | 1985-12-24 | Krupp Polysius Ag | White cement production |
| US4808108A (en) * | 1985-03-22 | 1989-02-28 | Krupp Polysius Ag | Method and apparatus for the heat treatment of fine-grained material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6012899B2 (en) | 1985-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2044011T3 (en) | PROCEDURE FOR THE MANUFACTURE OF STEEL FROM THIN MINERAL. | |
| CA2023955C (en) | ||
| ZA837907B (en) | Apparatus and process for regulating the delivery of solid materials by a blowing lance | |
| JPS56124436A (en) | Calcination of powder stock material | |
| UA12328A (en) | Method for repair of refractory brick and device for its realization | |
| ES8300867A1 (en) | Method of controlling furnace atmospheres | |
| JPS5719148A (en) | Pressure casting device | |
| JPS5362718A (en) | Manufacture of reduced iron | |
| ATE34210T1 (en) | METHOD OF FEEDING POWDERY MATERIAL INTO A BOILER FURNACE AND APPARATUS FOR CARRYING OUT THESE METHOD. | |
| JPS5423230A (en) | Controlling system of sulfur oxide discharge amount contained in the combustion gas | |
| DE3461118D1 (en) | Device for the pulsating supply of a gaseous medium to a kiln or suchlike | |
| GB948775A (en) | Charging device for electric reduction furnace | |
| JPS56169769A (en) | Carbonitriding method | |
| SU471501A1 (en) | The method of gunning converter | |
| JPS5713169A (en) | Method for controlling concentration of carbon in carburizing atmosphere | |
| JPS5761628A (en) | Regeneration of calcium oxide from calcium sulfate utilizing fluidized bed | |
| JPS56102518A (en) | Annealing method for steel | |
| JPS5629668A (en) | Carbon concn. controlling method of carburizing atmosphere | |
| ES8206635A1 (en) | Method for achieving low sulfur levels in the DRI product from iron oxide reducing kilns | |
| JPS5761627A (en) | Regeneration of clucium oxide from calcium sulfate utilizing fluidized bed | |
| JPS56133022A (en) | Calcining device for powder material | |
| JPS52117277A (en) | Denitration apparatus of coke oven waste gas | |
| JPS57131639A (en) | Bedding method of iron ore | |
| JPS5232895A (en) | Process for controlling supplying quantity of lime in the wet recovery process of sulfur in the waste gas as gypsum with lime | |
| JPS57169009A (en) | Pretreatment of hot metal |