US73333A - Improvement in cupola-fuenaces - Google Patents
Improvement in cupola-fuenaces Download PDFInfo
- Publication number
- US73333A US73333A US73333DA US73333A US 73333 A US73333 A US 73333A US 73333D A US73333D A US 73333DA US 73333 A US73333 A US 73333A
- Authority
- US
- United States
- Prior art keywords
- steam
- air
- cupola
- furnace
- improvement
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 239000002184 metal Substances 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000000446 fuel Substances 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 10
- 238000003723 Smelting Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910001108 Charcoal iron Inorganic materials 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
Definitions
- the invention relates to the construction of furnaces for smelting of ironiron ores, or other metals, or metal ores, by the introduction of combined air and steam, either or both of which are snperheatcd before being passed through the tuyeres of the furnaces; and the invention consists in superheating the steam or air, or both, in combination, to any practical temperature, with the waste heat of the furnace, or with heat from an 4independent or separate furnace, so that the steam shall not be condensed before entering the tuyeres, and in passing the combined superhcated air and steam through the tuyeres into the ignited fuel of a cupola or blastfurnace.
- FIG. 1 The drawings represent ablast-furnacc constructed for the application of my invention- I A, showing a vertical central section, and B a horizontal section on the line a a denote iron posts, on a series of which the cupola b is erected, the cupola being covered with an iron casing, c, and lined with tirebrick, d.
- e e denote the superheating-ehamber, in which are erected, on a circular superheatcr base,f, upright return-bends or pipes g.
- h is the air-blast chamber surrounding the cupola, and enclosing the tuyeres z', said chamber being supplied from a pipe, .7', through which air is forced by the blower.
- c denotes a vertical pipe, which conducts the superheated steam to the circular pipe l, placed over the air-blast chamber t, and having a series of short pipes, s, projecting from its lower side a short distance into the air-blast chamber, and opening therein, in order to obtain a uniform distribution of steam into the air in the chamber 71 before the air-blast ⁇ enters the tuyeres,.
- m denotes an outlet-pipe at the bottom of the furnace, through which the molten metal is j discharged from the furnace.
- n is a steam-cock, for admitting and controlling the admission of steam from the steam-boiler through a steam-pipe, o, into the superheater base f.
- the return-bends g are firmly secured to, and open into and from the superheater basef.
- the interior of this base is divided by cross-walls or partitions intera series of compartments, (as denoted by the red lines at 13,) so as to cause lthe steam to pass into the bends; and from bend to bend, as will be readily understood, until, having passed through the whole series, it descends in a. super-heated condition through the pipe 7c into the air-blast chamber t.
- the furnace being charged with, fuel, and with the metal to be smelted, the air and steam are passed through the tuyeres into the ignited fuel in the furnace, and the steam or'air, or both combined, being superheated before entering the tuyeres, the combination is wholly or partially decomposed as it enters the fuel, liberating the hydrogen of the steam in a highly-heated condition, and this hydrogen will at once unite with the sulphur from the fuel and in the melting metal, and will pass oif with the volatile products of combustion.
- I can produce a refined iron with sulphurous, bituminous, or anthracite coal, fully equal to charcoal-iron.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
@uiten tetta atratv @ffice JOHN HOWARTH, OF SALEM, MASSACHUSETTS.
Letters Paten-t No. 73,833, dafeol January 14, 1868. l
IMPROVEMENT IN GUPOLA-I'URNAGS.
TO ALL WIIOM IT MAY CONCERN:
Be it known that I, JOHN HewAn'riI, of Salem, in the county of Essex, and State of Massachusetts, have invented an Improvement'in Smelting Iron, Iron Ores, or other Metals or Metal Orcs in Blast or Cupola- Furnaces; and I do hereby declare that the following, taken in connection with the drawings, which accompany and form part of this specification, is a description of my invention sufficient to enable those skilled in the art to practise it. i
The invention relates to the construction of furnaces for smelting of ironiron ores, or other metals, or metal ores, by the introduction of combined air and steam, either or both of which are snperheatcd before being passed through the tuyeres of the furnaces; and the invention consists in superheating the steam or air, or both, in combination, to any practical temperature, with the waste heat of the furnace, or with heat from an 4independent or separate furnace, so that the steam shall not be condensed before entering the tuyeres, and in passing the combined superhcated air and steam through the tuyeres into the ignited fuel of a cupola or blastfurnace.
The drawings representablast-furnacc constructed for the application of my invention- I A, showing a vertical central section, and B a horizontal section on the line a a denote iron posts, on a series of which the cupola b is erected, the cupola being covered with an iron casing, c, and lined with tirebrick, d. e e denote the superheating-ehamber, in which are erected, on a circular superheatcr base,f, upright return-bends or pipes g. h is the air-blast chamber surrounding the cupola, and enclosing the tuyeres z', said chamber being supplied from a pipe, .7', through which air is forced by the blower. c denotes a vertical pipe, which conducts the superheated steam to the circular pipe l, placed over the air-blast chamber t, and having a series of short pipes, s, projecting from its lower side a short distance into the air-blast chamber, and opening therein, in order to obtain a uniform distribution of steam into the air in the chamber 71 before the air-blast `enters the tuyeres,. m denotes an outlet-pipe at the bottom of the furnace, through which the molten metal is j discharged from the furnace. n is a steam-cock, for admitting and controlling the admission of steam from the steam-boiler through a steam-pipe, o, into the superheater base f. The return-bends g are firmly secured to, and open into and from the superheater basef. The interior of this base is divided by cross-walls or partitions intera series of compartments, (as denoted by the red lines at 13,) so as to cause lthe steam to pass into the bends; and from bend to bend, as will be readily understood, until, having passed through the whole series, it descends in a. super-heated condition through the pipe 7c into the air-blast chamber t. The furnace being charged with, fuel, and with the metal to be smelted, the air and steam are passed through the tuyeres into the ignited fuel in the furnace, and the steam or'air, or both combined, being superheated before entering the tuyeres, the combination is wholly or partially decomposed as it enters the fuel, liberating the hydrogen of the steam in a highly-heated condition, and this hydrogen will at once unite with the sulphur from the fuel and in the melting metal, and will pass oif with the volatile products of combustion. By this means I can produce a refined iron with sulphurous, bituminous, or anthracite coal, fully equal to charcoal-iron.
I claim, in combinationrwith a cupola, blast, or other furnace, (in which combined air and steam are used as described,) the superheater-chamber, located directly ovcr.the furnace, substantially us described.
I also claim the superheater basefand its upright return-bonds g, combined and arranged together, and
relatively to the furnace and air-blast, substantially as shown and described.
' JOHN HOWARTH.
Witnesses:
FRANCIS GouLn, L. H. LATXMER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US73333A true US73333A (en) | 1868-01-14 |
Family
ID=2142843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US73333D Expired - Lifetime US73333A (en) | Improvement in cupola-fuenaces |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US73333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100053075A1 (en) * | 2008-08-29 | 2010-03-04 | Searete Llc | Display control based on bendable interface containing electronic device conformation sequence status |
-
0
- US US73333D patent/US73333A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100053075A1 (en) * | 2008-08-29 | 2010-03-04 | Searete Llc | Display control based on bendable interface containing electronic device conformation sequence status |
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