ES397665A1 - Recuperative furnaces - Google Patents
Recuperative furnacesInfo
- Publication number
- ES397665A1 ES397665A1 ES397665A ES397665A ES397665A1 ES 397665 A1 ES397665 A1 ES 397665A1 ES 397665 A ES397665 A ES 397665A ES 397665 A ES397665 A ES 397665A ES 397665 A1 ES397665 A1 ES 397665A1
- Authority
- ES
- Spain
- Prior art keywords
- percent
- passages
- flue gas
- air
- recuperator
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/02—Brick hot-blast stoves
- C21B9/06—Linings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Air Supply (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Recuperative furnaces, such as soaking pits, have recuperators formed of sets of ceramic tiles arranged end to end with aligned holes in each set of tiles forming one series of passages for the flue gas and openings between the sets of tiles forming a second series of passages for the air to be heated. The heated air from the recuperator is directed through an air tunnel to an entry or burner port where it is mixed with coke oven gas or other fuel. Combustion is completed in the combustion or heating chamber which also receives the ingots to be heated. The burnt gases pass from the chamber through a flue gas port to the recuperator. It is impossible to maintain a gas tight connection between the tile. To prevent air leakage into the flue gas passages and increase fuel efficiency and production the entry port area is made at least approximately 75 percent (preferably 100 percent) of the cross sectional area of the air tunnel and the flue port area is made at least approximately 75 percent (preferably 100 percent) of the total cross sectional area of the flue gas passages in the recuperator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9473570A | 1970-12-03 | 1970-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES397665A1 true ES397665A1 (en) | 1975-03-01 |
Family
ID=22246849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES397665A Expired ES397665A1 (en) | 1970-12-03 | 1971-12-03 | Recuperative furnaces |
Country Status (10)
Country | Link |
---|---|
US (1) | US3690636A (en) |
AU (1) | AU456753B2 (en) |
BR (1) | BR7108002D0 (en) |
CA (1) | CA943762A (en) |
DE (1) | DE2159842A1 (en) |
ES (1) | ES397665A1 (en) |
FR (1) | FR2117286A5 (en) |
GB (1) | GB1341316A (en) |
IT (1) | IT943164B (en) |
NL (1) | NL7116601A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4029465A (en) * | 1975-02-06 | 1977-06-14 | Hague International Corporation | Energy conserving process furnace system and components thereof |
US5018707A (en) * | 1989-03-14 | 1991-05-28 | Gas Research Institute | Heating furnace |
JP5751743B2 (en) | 2009-03-09 | 2015-07-22 | 三菱重工業株式会社 | Exhaust gas treatment apparatus and exhaust gas treatment method |
SE534084C2 (en) * | 2010-05-04 | 2011-04-26 | Linde Ag | Process for increasing the heat homogeneity in a pit oven |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1824876A (en) * | 1927-09-09 | 1931-09-29 | Chapman Stein Company | Recuperative soaking pit |
US2079560A (en) * | 1934-02-14 | 1937-05-04 | Amco Inc | Recuperative soaking pit furnace |
US2124888A (en) * | 1934-07-05 | 1938-07-26 | Amco Inc | Recuperative soaking pit furnace |
US2092402A (en) * | 1934-08-07 | 1937-09-07 | Amco Inc | Recuperator tile structure |
US2126095A (en) * | 1936-10-12 | 1938-08-09 | William T Dean | Soaking pit and like heating furnace |
US2297696A (en) * | 1940-10-29 | 1942-10-06 | Elder Harold Griffin | Furnace |
US2414888A (en) * | 1941-07-03 | 1947-01-28 | Amsler Morton Company | Recuperative soaking pit furnace |
US2563683A (en) * | 1946-02-07 | 1951-08-07 | United States Steel Corp | Gas burner for soaking pit furnaces and the like |
US3198855A (en) * | 1962-04-24 | 1965-08-03 | Loftus Engineering Corp | Method of operating soaking pits |
-
1970
- 1970-12-03 US US94735A patent/US3690636A/en not_active Expired - Lifetime
-
1971
- 1971-11-29 AU AU36277/71A patent/AU456753B2/en not_active Expired
- 1971-11-30 GB GB5561371A patent/GB1341316A/en not_active Expired
- 1971-12-02 FR FR7143249A patent/FR2117286A5/fr not_active Expired
- 1971-12-02 CA CA129,158A patent/CA943762A/en not_active Expired
- 1971-12-02 IT IT70971/71A patent/IT943164B/en active
- 1971-12-02 DE DE19712159842 patent/DE2159842A1/en active Pending
- 1971-12-02 NL NL7116601A patent/NL7116601A/xx unknown
- 1971-12-02 BR BR8002/71A patent/BR7108002D0/en unknown
- 1971-12-03 ES ES397665A patent/ES397665A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU3627771A (en) | 1973-06-07 |
US3690636A (en) | 1972-09-12 |
NL7116601A (en) | 1972-06-06 |
GB1341316A (en) | 1973-12-19 |
AU456753B2 (en) | 1974-12-11 |
CA943762A (en) | 1974-03-19 |
DE2159842A1 (en) | 1972-06-29 |
FR2117286A5 (en) | 1972-07-21 |
IT943164B (en) | 1973-04-02 |
BR7108002D0 (en) | 1973-04-05 |
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