GB1301502A - - Google Patents
Info
- Publication number
- GB1301502A GB1301502A GB1301502DA GB1301502A GB 1301502 A GB1301502 A GB 1301502A GB 1301502D A GB1301502D A GB 1301502DA GB 1301502 A GB1301502 A GB 1301502A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- zone
- fed
- fuel
- bridge
- 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
- 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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1301502 Shaft furnaces K BECKENBACH 10 Dec 1970 [10 Dec 1969] 58790/70 Heading F4B [Also in Division C1] Magnesite, dolomite or other material to be calcined and sintered is fed to the top of a shift furnace, to be calcined in a zone A to which is fed hot gas from combustion chambers 12. The flow of material is restricted by a bridge 14 in a roasting zone B through which no gases flow. The bridge 14 has a recess 20 in its lower edge, Fig. 2, into which combustion chamber 22 delivers a fuel/air mixture which forms a downdraught gas current to sinter the material in zone C, additional fuel or air being supplied to the cavity 16 below the bridge by ducts 24. Exhaust gas from the sintering zone C, together with heated air from the updraught cooling zone D is fed to the upper combustion chambers 12 together with additional fuel and air. The air supplied to the lower combustion chamber 22 is preheated by the exhaust gases. The additional fuel or air for sintering may be fed to the furnace above the lower combustion chambers, and the composition of the gas delivered from the lower combustion chamber and the fuel or air supplied is regulated to give the required sintering temperature without damage to the furnace.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691961789 DE1961789C (en) | 1969-12-10 | Process for operating a shaft furnace for sintering, in particular dolomite and shaft furnace for carrying out this process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1301502A true GB1301502A (en) | 1972-12-29 |
Family
ID=5753391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1301502D Expired GB1301502A (en) | 1969-12-10 | 1970-12-10 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3695595A (en) |
| JP (1) | JPS4929439B1 (en) |
| AT (1) | AT305860B (en) |
| BE (1) | BE760160A (en) |
| FR (1) | FR2074985A5 (en) |
| GB (1) | GB1301502A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2093575A (en) * | 1981-02-25 | 1982-09-02 | Catagas Ltd | Combustion apparatus |
| JPS6055755B2 (en) * | 1981-11-05 | 1985-12-06 | 宇部興産株式会社 | double inclined furnace |
| CN1076400C (en) * | 1998-03-06 | 2001-12-19 | 杨兆祥 | Boron-magnesium compound additives and preparing method thereof |
| EP1669708A3 (en) * | 2004-12-13 | 2007-01-24 | Terruzzi Fercalx S.p.A. | Kiln for burning lump materials |
| CN101921074B (en) * | 2010-08-31 | 2012-07-04 | 贾会平 | Beam-type limekiln |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3285590A (en) * | 1964-06-11 | 1966-11-15 | Marshall F Parsons | Down draft vertical kiln system |
| US3544096A (en) * | 1968-05-22 | 1970-12-01 | Kloeckner Humboldt Deutz Ag | Cross-current blast furnace |
-
1970
- 1970-10-08 AT AT909470A patent/AT305860B/en not_active IP Right Cessation
- 1970-11-30 US US93578A patent/US3695595A/en not_active Expired - Lifetime
- 1970-12-09 FR FR7044275A patent/FR2074985A5/en not_active Expired
- 1970-12-09 JP JP45108842A patent/JPS4929439B1/ja active Pending
- 1970-12-10 BE BE760160A patent/BE760160A/en unknown
- 1970-12-10 GB GB1301502D patent/GB1301502A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1961789B2 (en) | 1972-10-19 |
| US3695595A (en) | 1972-10-03 |
| BE760160A (en) | 1971-06-10 |
| DE1961789A1 (en) | 1972-05-31 |
| FR2074985A5 (en) | 1971-10-08 |
| AT305860B (en) | 1973-03-12 |
| JPS4929439B1 (en) | 1974-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |