GB1331553A - Shaft furnaces - Google Patents
Shaft furnacesInfo
- Publication number
- GB1331553A GB1331553A GB2633471*A GB2633471A GB1331553A GB 1331553 A GB1331553 A GB 1331553A GB 2633471 A GB2633471 A GB 2633471A GB 1331553 A GB1331553 A GB 1331553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- valves
- charging hopper
- waste gas
- pipe
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/20—Arrangements of devices for charging
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/007—Controlling or regulating of the top pressure
Abstract
1331553 Charging blast furnaces DEMAG AG 19 April 1971 [4 April 1970] 26334/71 Heading F4B Apparatus for equalizing pressures in a blast furnace 2 and its charging hopper 1 includes a crude waste gas reservoir 22 fed from one of the offtakes 9 with a connection to the charging hopper 1 through valves 24 and 27, and gas cleaners 16 fed from offtakes 8, 9, 10 and 11 also having a connection to said charging hopper through valves 21 and 27. Owing to loss of pressure in the cleaners 16, the pressure at valve 21 is less than that at valve 24. An impulse from a pressure differential control 29 opens valve 21 admitting clean waste gas through pipe 18 and non-return valve 27 into the charging hopper. Later valve 24 is opened admitting crude waste gas into said charging hopper via pipe 32 valve 27 to equalize the pressure. The pipe 32 is of substantially greater diameter than pipe 18. To charge the hopper 1 sealing valve 3 is opened and relief valve 20 in an offtake 19 allows displaced gas to escape. Other relief or safety valves 13, 14 and 30 are provided in the system and valve 17 controls the passage of cleaned waste gas for conventional uses. Heavier particles are deposited in chamber 22 owing to the presence of baffles 25. In a modification (Fig. 2) the flap valves 3, 4, 5 and 6 are replaced by ball valves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702016205 DE2016205A1 (en) | 1970-04-04 | 1970-04-04 | Method and device for equalizing the gas pressures of lock chambers and furnace space of shaft furnace, in particular of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1331553A true GB1331553A (en) | 1973-09-26 |
Family
ID=5767142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2633471*A Expired GB1331553A (en) | 1970-04-04 | 1971-04-19 | Shaft furnaces |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3735970A (en) |
| AT (1) | AT319296B (en) |
| DE (1) | DE2016205A1 (en) |
| FR (1) | FR2085848B1 (en) |
| GB (1) | GB1331553A (en) |
| NL (1) | NL7104317A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU73752A1 (en) * | 1975-11-06 | 1976-06-11 | ||
| US4196892A (en) * | 1976-03-17 | 1980-04-08 | Air Pollution Industries | Apparatus for equalizing top gas pressure in a blast furnace |
| US4082253A (en) * | 1976-03-17 | 1978-04-04 | Air Pollution Industries, Inc. | Blast furnace pressure equalizing apparatus |
| JPS5665908A (en) * | 1979-10-30 | 1981-06-04 | Ishikawajima Harima Heavy Ind Co Ltd | Blast furnace gas recovery method and its device |
| EP0064090A1 (en) * | 1981-05-05 | 1982-11-10 | MANNESMANN Aktiengesellschaft | Pressure equalizer for shaft furnaces operating at a pressure higher than the atmospheric pressure, especially blast furnaces |
| LU100035B1 (en) * | 2017-01-25 | 2018-08-14 | Wurth Paul Sa | Shaft Furnace Plant With Full Recovery Pressure Equalizing System |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3297432A (en) * | 1963-12-26 | 1967-01-10 | Mohr & Sons John | Blast furnace charging apparatus pressurization |
-
1970
- 1970-04-04 DE DE19702016205 patent/DE2016205A1/en not_active Ceased
-
1971
- 1971-03-31 NL NL7104317A patent/NL7104317A/xx not_active Application Discontinuation
- 1971-04-02 AT AT282371A patent/AT319296B/en not_active IP Right Cessation
- 1971-04-05 FR FR7111965A patent/FR2085848B1/fr not_active Expired
- 1971-04-14 US US00133895A patent/US3735970A/en not_active Expired - Lifetime
- 1971-04-19 GB GB2633471*A patent/GB1331553A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2016205A1 (en) | 1971-10-07 |
| AT319296B (en) | 1974-12-10 |
| US3735970A (en) | 1973-05-29 |
| FR2085848A1 (en) | 1971-12-31 |
| NL7104317A (en) | 1971-10-06 |
| FR2085848B1 (en) | 1975-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |