US2494816A - Hot-blast stove - Google Patents
Hot-blast stove Download PDFInfo
- Publication number
- US2494816A US2494816A US594519A US59451945A US2494816A US 2494816 A US2494816 A US 2494816A US 594519 A US594519 A US 594519A US 59451945 A US59451945 A US 59451945A US 2494816 A US2494816 A US 2494816A
- Authority
- US
- United States
- Prior art keywords
- arches
- manifold
- chamber
- ports
- checkerwork
- 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 - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S165/00—Heat exchange
- Y10S165/009—Heat exchange having a solid heat storage mass for absorbing heat from one fluid and releasing it to another, i.e. regenerator
- Y10S165/03—Mass formed of modules arranged in three dimensional matrix, i.e. checkerwork
- Y10S165/032—Mass formed of modules arranged in three dimensional matrix, i.e. checkerwork having gas supply or exhaust manifold structure
- Y10S165/034—Mass formed of modules arranged in three dimensional matrix, i.e. checkerwork having gas supply or exhaust manifold structure with flow distributing baffle
Definitions
- This invention relates to improvements in hot blast stoves and more particularly to improved means for injecting the cold blast therein.
- the supporting structure for hot blast stove checkerwork has been a source of considerable trouble in recent years due to increased size of checkerwork and high operating temperatures. Steel supports have frequently failed due to high temperatures. While this may be corrected by using steel blooms and thick slabs, this undesirably increases the total weight of the stoves. Brick supports are generally preferable for the high temperature conditions involved, but these too have collapsed, putting the stoves out of operation while the checkerwork was still in fair condition. I have discovered that such failures are largely due to abrading or eroding of the brick supports by the cold air blast picking up and swirling dust and spalled ofi pieces of checkerbrick against the supporting pillars and arches.
- Figure 1 is a vertical section
- FIG 2 is an enlarged detail of Figure 1 showing the manifold of my invention
- Figure 3 is a section on line III--III of Figure 2;
- Figure 4 is a section on line IVIV of Figure 2;
- Figure 5 is a plan of a modified form of manifold
- Figure 6 is a side view thereof
- Figure 7 is an elevation of the outer end
- Figure 8 is an elevation of the inner end.
- FIG. l a hot blast stove composed of a combustion chamber A and checker chamber B.
- the checkerwork in checker chamber Bis preferably supported on main arches 2 and cross arches 4, formed of brick.
- a manifold I2 connected to the cold blast inlet 8 and mounted at its inner end on a suitable support Id.
- the manifold I2 is generally rectangular in vertical cross section but tapers on its sides towards the inner end to 2 provide an even distribution of air through ports l-6 oppositely disposed on either side throughout the length thereof.
- the ports l6 are disposed opposite the open spaces l8 between the arches 2.
- FIGS 5 through 8 there is shown a modified form of a manifold 20 wherein the air is projected therefrom upwardly at an angle of 45 or thereabouts instead of laterally.
- the manifold has sloping top or roof sections 22 in which are disposed ports 24 at desired intervals to coincide with the spaces l8 between the arches 2.
- Wire mesh screens 26 are placed over the ports 24 to prevent spalled off pieces of checker-brick from entering the manifold.
- a small slot 28 may be provided at the inner end to permit any small pieces of brick to be blown out of the manifold.
- the manifold is tapered upwardly from the bottom, so that the inner end has the same width but less depth than the entry end.
- the taper is regulated to provide an equal distribution of air from the ports from entry to inner end thereof.
- flanges 30 are provided rearwardly of the ports 16 and 24 to direct the cold blast directly into the spaces I58.
- a hot blast stove including checkerwork and spaced supporting arches therefor, said supporting arches forming a chamber below said checkerwork, a cold blast main connected to said chamber, an elongated box-like manifold of decreasing cross section extending across the center portion of said chamber between said arches connected to said cold blast main, spaced ports in said manifold on the outer sides thereof, baffles on said manifold rearwardly of said ports, said ports being disposed between said arches and said ports and said baflies being proportioned to direct the cold blast outwardly at substantially right angles from said manifold transversely of said chamber between said arches whereby eroding of said arches by said cold blast i substantially prevented.
- a hot blast stove including checkerwork and spaced supporting arches therefor, said supporting arches forming a chamber below said checkerwork, a cold blast main connected to said chamber, an elongated box-like manifold extending across the center portion of said chamber between said arches, said manifold being connected to said cold blast main, spaced ports in said manifold on the outer sides thereof, said ports being disposed between said arches to direct the air blast transversely of said chamber between said arches whereby eroding of said arches by said cold blast is substantially eliminated.
- a hot blast stove including checkerwork and spaced supporting arches therefor, said supporting arches forming a chamber below said checkerwork, a cold blast main connected to said chamber, an elongated box-like manifold of decreasing cross-sectional area extending across the center portion of said chamber between said arches, said manifold being connected to said cold blast main, spaced ports in said manifold on the outer sides thereof, said ports being disposed between said arches to direct the air blast transversely of said chamber between said arches whereby eroding of said arches by said cold blast is substantially eliminated.
Description
F. E. KLING HOT BLAST STOVE Jan. W 1950 2 Sheets-Sheet l FIEA- Filed May 18, 1945 fizz/mam". F550 5 Kz/A IEJL- Jan. W 1950 F. E. mums 2,494,816
HOT BLAST STOVE Filed May 18, 1945 2 Sheets-Sheet 2 W mu 6 r v /[5 n w a 1 am 6 k E M 6 0 MUM/ m W F E W/ l h r m 0 0 Z@ i /w j w y in H fi Patented Jan. 17, 1950 HOT-BLAST sTovE Fred E. Kling, Youngstown, Ohio, assignor to Carnegie-Illinois Steel Corporation, a commationof New Jersey Application May 18, 1945,,Serihl No. 594,519
3 Claims. (01. 263-19)"- This invention relates to improvements in hot blast stoves and more particularly to improved means for injecting the cold blast therein.
The supporting structure for hot blast stove checkerwork has been a source of considerable trouble in recent years due to increased size of checkerwork and high operating temperatures. Steel supports have frequently failed due to high temperatures. While this may be corrected by using steel blooms and thick slabs, this undesirably increases the total weight of the stoves. Brick supports are generally preferable for the high temperature conditions involved, but these too have collapsed, putting the stoves out of operation while the checkerwork was still in fair condition. I have discovered that such failures are largely due to abrading or eroding of the brick supports by the cold air blast picking up and swirling dust and spalled ofi pieces of checkerbrick against the supporting pillars and arches.
It is accordingly an object of the present invention to provide an improved means for injecting the cold blast into hot blast stoves.
It is a further object to permit the use of brick supports for the checkerwork in hot blast stoves.
It is another object to obviate the collapsing of checkerwork in hot blast stoves due to failure of the supporting structure. a
The foregoing and further objects will be apparent from the specification and drawings, wherein:
Figure 1 is a vertical section;
Figure 2 is an enlarged detail of Figure 1 showing the manifold of my invention;
Figure 3 is a section on line III--III of Figure 2;
Figure 4 is a section on line IVIV of Figure 2;
Figure 5 is a plan of a modified form of manifold;
Figure 6 is a side view thereof;
Figure 7 is an elevation of the outer end; and
Figure 8 is an elevation of the inner end.
Referring more particularly to the drawings, there is shown in Figure l a hot blast stove composed of a combustion chamber A and checker chamber B. The checkerwork in checker chamber Bis preferably supported on main arches 2 and cross arches 4, formed of brick. Below the arches 2, forming a chamber 6, there is provided in the stove wall an inlet 8 connected to the cold blast main l0. Interiorly'of the stove in the chamber 6, there is disposed a manifold I2 connected to the cold blast inlet 8 and mounted at its inner end on a suitable support Id. The manifold I2 is generally rectangular in vertical cross section but tapers on its sides towards the inner end to 2 provide an even distribution of air through ports l-6 oppositely disposed on either side throughout the length thereof. The ports l6 are disposed opposite the open spaces l8 between the arches 2.
In Figures 5 through 8 there is shown a modified form of a manifold 20 wherein the air is projected therefrom upwardly at an angle of 45 or thereabouts instead of laterally. In this form, the manifold has sloping top or roof sections 22 in which are disposed ports 24 at desired intervals to coincide with the spaces l8 between the arches 2. Wire mesh screens 26 are placed over the ports 24 to prevent spalled off pieces of checker-brick from entering the manifold. A small slot 28 may be provided at the inner end to permit any small pieces of brick to be blown out of the manifold.
In this form, the manifold is tapered upwardly from the bottom, so that the inner end has the same width but less depth than the entry end. As in the first described form, the taper is regulated to provide an equal distribution of air from the ports from entry to inner end thereof.
In both forms of manifolds, flanges 30 are provided rearwardly of the ports 16 and 24 to direct the cold blast directly into the spaces I58.
From the foregoing it is seen that the cold blast is directed into the checkerwork in a manner that does not cause turbulence in the chamber 6 and thereby prevents dust and brick particles from being picked up and projected against the supporting structure. As before stated this permits the use of brick supports.
While I have shown and described two specific embodiments of my invention, it will be understood that these embodiments are merely for the purpose of illustration and description and that various other forms may be devised within the scope of my invention, as defined in the appended claims.
I claim:
1. In a hot blast stove including checkerwork and spaced supporting arches therefor, said supporting arches forming a chamber below said checkerwork, a cold blast main connected to said chamber, an elongated box-like manifold of decreasing cross section extending across the center portion of said chamber between said arches connected to said cold blast main, spaced ports in said manifold on the outer sides thereof, baffles on said manifold rearwardly of said ports, said ports being disposed between said arches and said ports and said baflies being proportioned to direct the cold blast outwardly at substantially right angles from said manifold transversely of said chamber between said arches whereby eroding of said arches by said cold blast i substantially prevented.
2. In a hot blast stove including checkerwork and spaced supporting arches therefor, said supporting arches forming a chamber below said checkerwork, a cold blast main connected to said chamber, an elongated box-like manifold extending across the center portion of said chamber between said arches, said manifold being connected to said cold blast main, spaced ports in said manifold on the outer sides thereof, said ports being disposed between said arches to direct the air blast transversely of said chamber between said arches whereby eroding of said arches by said cold blast is substantially eliminated.
3. In a hot blast stove including checkerwork and spaced supporting arches therefor, said supporting arches forming a chamber below said checkerwork, a cold blast main connected to said chamber, an elongated box-like manifold of decreasing cross-sectional area extending across the center portion of said chamber between said arches, said manifold being connected to said cold blast main, spaced ports in said manifold on the outer sides thereof, said ports being disposed between said arches to direct the air blast transversely of said chamber between said arches whereby eroding of said arches by said cold blast is substantially eliminated.
FRED E. KLING.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS 5 Number Name Date 732,867 Kloman July 7, 1903 1,168,014 Landgrebe Jan. 11, 1916 1,825,259 Brassert Sept. 29, 1931 1,849,657 Boynton Mar. 15, 1932 20 1,904,237 Irwin Apr. 18, 1933 2,136,993 Palmgren Nov. 15, 1938 2,376,099 Swartz May 15, 1945
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US594519A US2494816A (en) | 1945-05-18 | 1945-05-18 | Hot-blast stove |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US594519A US2494816A (en) | 1945-05-18 | 1945-05-18 | Hot-blast stove |
Publications (1)
Publication Number | Publication Date |
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US2494816A true US2494816A (en) | 1950-01-17 |
Family
ID=24379224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US594519A Expired - Lifetime US2494816A (en) | 1945-05-18 | 1945-05-18 | Hot-blast stove |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4174948A (en) * | 1978-03-06 | 1979-11-20 | Toledo Engineering Company | Manifold inputs and outputs for furnace regenerators |
USRE33814E (en) * | 1978-03-06 | 1992-02-04 | Toledo Engineering Co., Inc. | Manifold inputs and outputs for furnace regenerators |
USD973854S1 (en) * | 2016-02-12 | 2022-12-27 | Zakrytoye Akcionernoye Obschestvo “Kalugin” | Hot stove for blast furnace |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US732867A (en) * | 1902-08-09 | 1903-07-07 | Andrew C Kloman | Hot-blast stove. |
US1168014A (en) * | 1915-07-31 | 1916-01-11 | Karl L Landgrebe | Hot-blast stove. |
US1825259A (en) * | 1926-11-26 | 1931-09-29 | Herman A Brassert | Apparatus for heating air and other gases for industrial uses |
US1849657A (en) * | 1930-04-17 | 1932-03-15 | Brassert & Co | Hot blast stove |
US1904237A (en) * | 1932-07-06 | 1933-04-18 | William J Irwin | Regenerative chamber |
US2136993A (en) * | 1934-11-13 | 1938-11-15 | Palmgren Eric | Drying apparatus for washing and the like |
US2376099A (en) * | 1942-05-06 | 1945-05-15 | Carnegie Illinois Steel Corp | Hot-blast stove |
-
1945
- 1945-05-18 US US594519A patent/US2494816A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US732867A (en) * | 1902-08-09 | 1903-07-07 | Andrew C Kloman | Hot-blast stove. |
US1168014A (en) * | 1915-07-31 | 1916-01-11 | Karl L Landgrebe | Hot-blast stove. |
US1825259A (en) * | 1926-11-26 | 1931-09-29 | Herman A Brassert | Apparatus for heating air and other gases for industrial uses |
US1849657A (en) * | 1930-04-17 | 1932-03-15 | Brassert & Co | Hot blast stove |
US1904237A (en) * | 1932-07-06 | 1933-04-18 | William J Irwin | Regenerative chamber |
US2136993A (en) * | 1934-11-13 | 1938-11-15 | Palmgren Eric | Drying apparatus for washing and the like |
US2376099A (en) * | 1942-05-06 | 1945-05-15 | Carnegie Illinois Steel Corp | Hot-blast stove |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4174948A (en) * | 1978-03-06 | 1979-11-20 | Toledo Engineering Company | Manifold inputs and outputs for furnace regenerators |
USRE33814E (en) * | 1978-03-06 | 1992-02-04 | Toledo Engineering Co., Inc. | Manifold inputs and outputs for furnace regenerators |
USD973854S1 (en) * | 2016-02-12 | 2022-12-27 | Zakrytoye Akcionernoye Obschestvo “Kalugin” | Hot stove for blast furnace |
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