GB1025647A - Improvements in and relating to operating furnaces - Google Patents
Improvements in and relating to operating furnacesInfo
- Publication number
- GB1025647A GB1025647A GB1609/63A GB160963A GB1025647A GB 1025647 A GB1025647 A GB 1025647A GB 1609/63 A GB1609/63 A GB 1609/63A GB 160963 A GB160963 A GB 160963A GB 1025647 A GB1025647 A GB 1025647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slurry
- coal
- furnace
- furnaces
- particle size
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/003—Injection of pulverulent coal
- C21B5/004—Injection of slurries
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
- E05F1/04—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights for wings which lift during movement, operated by their own weight
- E05F1/06—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing
- E05F1/061—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing with cams or helical tracks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
Fuel composition for use in furnaces, e.g. blast furnaces, comprise a slurry of coal having a "nominal particle size" of 1/16 to 3/8 inch in fuel oil having a vixcosity of 75-1000 SFS at 122 DEG F., the coal constituting 40-70% by weight of the slurry. By "nominal particle size" is meant that the majority of the particles have a size approximately equal to the nominal size. In use, the slurry is maintained in an agitated state at a temperature of at least 150 DEG F., and is thus in a pumpable state.ALSO:Furnaces, particularly blast furnaces, are fuelled at least partly by a slurry of coal in a fuel oil having a viscosity of 75-1000 8 FS at 122 DEG F., the coal having a nominal particle size of 1/16 "\ba-3/8 " and constituting 40-70 weight per cent of the slurry. The slurry is heated to a temperature of at least 150 DEG F. and agitated before introduction into the furnace, and may be injected either into the hot air stream blown through the tuyeres of the furnace preferably through a lance into the tuyere opening, or directly into the furnace through the wall proper. The slurry replaces part or all of the normal coke charge in the furnace, preferably the former.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US168200A US3157491A (en) | 1962-01-23 | 1962-01-23 | Method of operating a blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1025647A true GB1025647A (en) | 1966-04-14 |
Family
ID=22610522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1609/63A Expired GB1025647A (en) | 1962-01-23 | 1963-01-14 | Improvements in and relating to operating furnaces |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3157491A (en) |
| AT (1) | AT262348B (en) |
| BE (1) | BE627469A (en) |
| DE (1) | DE1433290A1 (en) |
| FR (1) | FR1344768A (en) |
| GB (1) | GB1025647A (en) |
| SE (1) | SE303774B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406026A (en) * | 1962-07-18 | 1968-10-15 | Central Nat De Rech S Metallur | Method of supplying blast furnace with solid fuel and oil suspension |
| CN110175716A (en) * | 2019-05-27 | 2019-08-27 | 中冶赛迪重庆信息技术有限公司 | State change and gravimetric analysis sensing method, equipment and medium towards blast furnace casting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1507740A (en) * | 1920-02-16 | 1924-09-09 | Edmund B Kirby | Method of operating blast furnaces and similar furnaces |
| US2938782A (en) * | 1956-04-24 | 1960-05-31 | Commw Engineering Corp | Method and operation of blast furnaces and metallurgical fuels therefor |
-
0
- BE BE627469D patent/BE627469A/xx unknown
-
1962
- 1962-01-23 US US168200A patent/US3157491A/en not_active Expired - Lifetime
-
1963
- 1963-01-14 DE DE19631433290 patent/DE1433290A1/en active Pending
- 1963-01-14 GB GB1609/63A patent/GB1025647A/en not_active Expired
- 1963-01-22 SE SE707/63A patent/SE303774B/xx unknown
- 1963-01-22 FR FR922195A patent/FR1344768A/en not_active Expired
- 1963-01-22 AT AT49063A patent/AT262348B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SE303774B (en) | 1968-09-09 |
| US3157491A (en) | 1964-11-17 |
| BE627469A (en) | |
| FR1344768A (en) | 1963-11-29 |
| AT262348B (en) | 1968-06-10 |
| DE1433290A1 (en) | 1968-11-07 |
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