US107712A - Improvement in furnaces for smelting scrap-iron - Google Patents
Improvement in furnaces for smelting scrap-iron Download PDFInfo
- Publication number
- US107712A US107712A US107712DA US107712A US 107712 A US107712 A US 107712A US 107712D A US107712D A US 107712DA US 107712 A US107712 A US 107712A
- Authority
- US
- United States
- Prior art keywords
- iron
- furnace
- furnaces
- improvement
- blast
- 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 Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 38
- 229910052742 iron Inorganic materials 0.000 title description 22
- 238000003723 Smelting Methods 0.000 title description 4
- 239000000203 mixture Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 210000001331 Nose Anatomy 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 229910001037 White iron Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 101700065062 andA Proteins 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910000499 pig iron Inorganic materials 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B1/00—Bakers' ovens
- A21B1/42—Bakers' ovens characterised by the baking surfaces moving during the baking
- A21B1/48—Bakers' ovens characterised by the baking surfaces moving during the baking with surfaces in the form of an endless band
Definitions
- My invention relates to Vthe combination of a generator-furnace with a reverberatory furnace having one or Several hearths or sumps, inwhich the iron to be melted is placed; also, with a system of blast or nose pipes, which are connected with a hot-blast pipe, and terminate within the elliptical vault opposite of the several tapping-holes.
- the object of this invention is to secure a great and steady heat, a flame of a constant chemical composition, and the possibility7 to reduce or to oxidize at will.
- Figure l is a horizontal transverse section of my furnace after the line A B.
- Fig. 2 is a vertical transverse section of the same after the line y e.
- a a a are the' hearths or sumps, which should be constructed of iire-proof stones or brick.
- c c c are working or charging doors, which are linedon the inside with a fire-proof material.
- l is a chamber for introducing air.
- g is the generator-furnace.
- e are fire-bars, resting on the cast-iron beams t' t'.
- q is the ash-hole.
- C is the ash-hole door.
- F is a door for feeding the generator-furnace. It is malde of heavy iron plates, so that it may shut we l.
- P is a variously-bent iron pipe, leading from a ventilator, and serving to burn the carbureted gases produced in the generator-furnace. It passes horizontally, being bent twice, between the perforated iron plate r r and the furnace-wall n u, Where the blast is heated by radiation or contact of the ashes, the fuel, and the walls oftt-he generator-furnace.
- This pipe leaves the furnace at about the height of the air-chamber Z, andA turns from there first vertically upward along the furnace. Having reached a. height of about half a foot above the aforementioned furnace, it turns in a horizontal direction within a distance of half its width, in order to pass parallel with the vault in the direction of its length, as represented in Fig.
- a s s s are stop-cocks.
- f f f are nozzles or blast-pipes. They are constructed of sheetiron, and extend themselves in the form of a slit/"The aperture or mouth of such a nozzle is to consist of two heavy sheet-iron plates, i
- n is the nre-bridge.
- t is the stack.
- o o are tappingholes to run off the melted iron.
- the furnace is charged with fuel.
- the ventilator is set in motion ⁇ and blast turned on. ,Y Through an opening in the working-doors the melted parts are brought in contact with the nnmelted pieces by means of a crowbar. If the iron has obtained the proper degree of fluidity, it is run olf into a mold or into an iron box lined inside with clay.
- the fuel it should be as dry as possible; but I may use an inferior fuel, as peat, lignite, bituminous and earthy coal.
- the blast should effect a pressure of one or two lines in the mercury-gage.
Description
ADOLPH OTT, OF VNEW YORK, N. Y.
IMPROVEMENT IN FURNACES FOR SMELTING SCRAP-IRON.
Specification forming part of Letters Patent No. 107,712, dated September 27, 1870.
I, ADoLPH Ornor N ew York, in the county of New York and State of New York, have in`` vented certain Improvementslin Furnaces for Smelting Scrap-Iron, of which the following is aspecication: 7
My invention relates to Vthe combination of a generator-furnace with a reverberatory furnace having one or Several hearths or sumps, inwhich the iron to be melted is placed; also, with a system of blast or nose pipes, which are connected with a hot-blast pipe, and terminate within the elliptical vault opposite of the several tapping-holes.
The object of this invention is to secure a great and steady heat, a flame of a constant chemical composition, and the possibility7 to reduce or to oxidize at will. v
Figure lis a horizontal transverse section of my furnace after the line A B. Fig. 2 is a vertical transverse section of the same after the line y e.
a a a are the' hearths or sumps, which should be constructed of iire-proof stones or brick. c c c are working or charging doors, which are linedon the inside with a fire-proof material. lis a chamber for introducing air. g is the generator-furnace. e are lire-bars, resting on the cast-iron beams t' t'. q is the ash-hole. C is the ash-hole door. F is a door for feeding the generator-furnace. It is malde of heavy iron plates, so that it may shut we l.
P is a variously-bent iron pipe, leading from a ventilator, and serving to burn the carbureted gases produced in the generator-furnace. It passes horizontally, being bent twice, between the perforated iron plate r r and the furnace-wall n u, Where the blast is heated by radiation or contact of the ashes, the fuel, and the walls oftt-he generator-furnace. This pipe leaves the furnace at about the height of the air-chamber Z, andA turns from there first vertically upward along the furnace. Having reached a. height of about half a foot above the aforementioned furnace, it turns in a horizontal direction within a distance of half its width, in order to pass parallel with the vault in the direction of its length, as represented in Fig. 2Q A s s s are stop-cocks. f f f are nozzles or blast-pipes. They are constructed of sheetiron, and extend themselves in the form of a slit/"The aperture or mouth of such a nozzle is to consist of two heavy sheet-iron plates, i
which are connected with screw-bolts with the pipes leading from P. m is the nre-bridge. n
is the flue. t is the stack. o o are tappingholes to run off the melted iron.
The operation of the furnace described is easily understood. After the sumps have been charged with the scraps, which should be formed in packets, the furnace is charged with fuel. When the same is in full glow the ventilator is set in motion` and blast turned on. ,Y Through an opening in the working-doors the melted parts are brought in contact with the nnmelted pieces by means of a crowbar. If the iron has obtained the proper degree of fluidity, it is run olf into a mold or into an iron box lined inside with clay.
In stirring the fluid mass just before tapping it gets more homogeneous. Y The furnace is charged anew while glowing.
Instead of charging the furnace with scrapiron alone, I may mix it with gray or any other kind of pig-iron.
In turning on more blast than ordinarily, which blast will burn the carbon of the iron to carbonio oxide and carbonio acid, and separate the sulphur, phosphorus, and earthy metals, I am thus enabled to obtain a pure, line-grained white cast-iron.
In order that the scrapiron may weld if employed byitself, it is of advantage to throw sand upon it. A concentrated solution of liquid glass has also been found serviceable for this purpose.
As regards the fuel, it should be as dry as possible; but I may use an inferior fuel, as peat, lignite, bituminous and earthy coal. The blast should effect a pressure of one or two lines in the mercury-gage.
Claims.
I claim as my invention- 1. The combination of a generator-furnace, g, with a reverberatory furnace having the hearths or sumps a a a, substantially as and for the purpose hereinbefore set forth.
2. The combination of the nozzles or blastpipes ffj' with the reverberatory furnace, substantially as and for the purpose hereinbeforek set forth.
ADOLPH OTT.
Witnesses:
THo. F. WELLS, RICHARD ARcHDEAcoN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US107712A true US107712A (en) | 1870-09-27 |
Family
ID=2177186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US107712D Expired - Lifetime US107712A (en) | Improvement in furnaces for smelting scrap-iron |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US107712A (en) |
-
0
- US US107712D patent/US107712A/en not_active Expired - Lifetime
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