GB1106406A - A process for heat-treating a material - Google Patents
A process for heat-treating a materialInfo
- Publication number
- GB1106406A GB1106406A GB11389/66A GB1138966A GB1106406A GB 1106406 A GB1106406 A GB 1106406A GB 11389/66 A GB11389/66 A GB 11389/66A GB 1138966 A GB1138966 A GB 1138966A GB 1106406 A GB1106406 A GB 1106406A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotary furnace
- fed
- low grade
- solid fuel
- grade solid
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/2016—Arrangements of preheating devices for the charge
- F27B7/2025—Arrangements of preheating devices for the charge consisting of a single string of cyclones
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/434—Preheating with addition of fuel, e.g. calcining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/125—Fuels from renewable energy sources, e.g. waste or biomass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A process for heat-treating a material, particularly applicable to the manufacture of cement clinker, comprises first heating the material at a temperature below 1000 DEG C. in a non-rotary furnace in which low grade solid fuel is burnt in the suspended state to provide at least part of the thermal energy requirement, and thereafter heating the material at above 1000 DEG C. in a rotary furnace. The non-rotary furnace is preferably a fluidized bed. The heat content of the gaseous and/or solid products of the rotary furnace may be exchanged with the starting material prior to treatment in the rotary furnace. The low grade solid fuel may be of coarser grain size than the starting material in which case the coarse grain slag is drawn off separately, or the low grade solid fuel may be finely divided and the finely divided slag drawn off with the flue gases and separated therefrom by means of a cyclone. In the manufacture of cement clinker the deacidification of the CaCO3 component may be at least partially effected in the non-rotary furnace and at least 30% of the energy required therefor obtained from the raw materials, the remainder of the energy requirement for deacidification being supplied by the fuel fed to the non-rotary furnace. Preferably, a pre-heater is disposed up-stream of the non-rotary furnace to which the meal of ground limestone is fed. The product of the non-rotary furnace may be adjusted to have a standard lime value of 95\sB5 before being fed to the rotary furnace.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER0040229 | 1965-03-26 | ||
| DER0040474 | 1965-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1106406A true GB1106406A (en) | 1968-03-20 |
Family
ID=25991878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11389/66A Expired GB1106406A (en) | 1965-03-26 | 1966-03-15 | A process for heat-treating a material |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE677986A (en) |
| CH (1) | CH479497A (en) |
| ES (1) | ES324315A1 (en) |
| GB (1) | GB1106406A (en) |
| IL (1) | IL25377A (en) |
| SE (1) | SE317616B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2354982A1 (en) * | 1976-06-16 | 1978-01-13 | Dotternhaus Portland Zement | CEMENT CLINKER MANUFACTURING PROCESS |
| EP0020060A1 (en) * | 1979-05-18 | 1980-12-10 | Exxon Research And Engineering Company | Cement production from residues from conversion of coal or the like |
| CN102690071A (en) * | 2012-05-30 | 2012-09-26 | 陕西大唐新能电力设计有限公司 | Graded energy utilization system used in cement production |
| CN114561504A (en) * | 2022-04-28 | 2022-05-31 | 中国恩菲工程技术有限公司 | Melting device and melting method based on fluidization prereduction |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL101001A (en) * | 1992-01-29 | 1995-01-24 | Moshe Gewertz | Method for the exploitation of oil shales |
-
1966
- 1966-03-03 CH CH302166A patent/CH479497A/en not_active IP Right Cessation
- 1966-03-14 IL IL25377A patent/IL25377A/en unknown
- 1966-03-15 GB GB11389/66A patent/GB1106406A/en not_active Expired
- 1966-03-17 BE BE677986D patent/BE677986A/xx not_active IP Right Cessation
- 1966-03-17 ES ES0324315A patent/ES324315A1/en not_active Expired
- 1966-03-25 SE SE3984/66A patent/SE317616B/xx unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2354982A1 (en) * | 1976-06-16 | 1978-01-13 | Dotternhaus Portland Zement | CEMENT CLINKER MANUFACTURING PROCESS |
| EP0020060A1 (en) * | 1979-05-18 | 1980-12-10 | Exxon Research And Engineering Company | Cement production from residues from conversion of coal or the like |
| CN102690071A (en) * | 2012-05-30 | 2012-09-26 | 陕西大唐新能电力设计有限公司 | Graded energy utilization system used in cement production |
| CN102690071B (en) * | 2012-05-30 | 2013-12-25 | 陕西大唐新能电力设计有限公司 | Graded energy utilization system used in cement production |
| CN114561504A (en) * | 2022-04-28 | 2022-05-31 | 中国恩菲工程技术有限公司 | Melting device and melting method based on fluidization prereduction |
Also Published As
| Publication number | Publication date |
|---|---|
| SE317616B (en) | 1969-11-17 |
| CH479497A (en) | 1969-10-15 |
| IL25377A (en) | 1970-03-22 |
| ES324315A1 (en) | 1967-02-01 |
| BE677986A (en) | 1966-09-01 |
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