US1049801A - Electric-furnace lining. - Google Patents
Electric-furnace lining. Download PDFInfo
- Publication number
- US1049801A US1049801A US65441511A US1911654415A US1049801A US 1049801 A US1049801 A US 1049801A US 65441511 A US65441511 A US 65441511A US 1911654415 A US1911654415 A US 1911654415A US 1049801 A US1049801 A US 1049801A
- Authority
- US
- United States
- Prior art keywords
- electric
- furnace lining
- tungsten
- furnace
- lining
- 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
- 229910052721 tungsten Inorganic materials 0.000 description 8
- 239000010937 tungsten Substances 0.000 description 8
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 230000001464 adherent effect Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Chemical compound CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- QNHZQZQTTIYAQM-UHFFFAOYSA-N chromium tungsten Chemical compound [Cr][W] QNHZQZQTTIYAQM-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
- F27B3/12—Working chambers or casings; Supports therefor
Definitions
- FREDERICK M BECKET, OF 1 ⁇ TIAGARA FALLS, NEW YORK, ASSIGNOR TO ELECTRO METALLURGICAL COMPANY, OF NIAGARA FALLS, NEW YORK, A CORPORATION OF WEST VIRGINIA.
- Electric-Furnace Lining of which the following is a specification.
- This invention relates to a liningfor electric furnaces, especially those which are used in the production of ferrotungsten, ferrochromium and similar alloys.
- Ores of tungsten chromium and other difiicultly-reducible metals may be smelted in furnaces lined With carbon, but the reduoed metal or alloy then becomes undesirably carburized by contact with such lining.
- Usual linings other than carbon areexpensive and short-lived, notwithstanding the high temperatures and corrosive slagls.
- t ese furnaces are lined with tungsten or a tungsten alloy, preferably a ferroaalloy high in tungsten, for example one containing 80 per cent. and upward.
- the lining may consist of cast plates of the alloy, or of refractory blocks faced with an adherent layer of the alloy.-
- the plates or blocks are preferably :of ferrotungsten.
- a composite block coated with ferrotungsten may be made by molding a mixture of a tungsten ore containing iron and carbon, and heating the surface of the block to the reduction-point of the metals, either by a flame or electrically, whereby the surficial .portion is converted into-an adherent facing An electric are or arcs may be applied. tothe facing, to render it v copiel of this pe tent inay be obtained for Specification of Letters latent.
- ferrotungsten may be reduced from or applied to the blocks either before or after they have been built into the electric furnace.
- An electric furnace having a lining consisting of ferrotungsten.
- a furnace lining comprising a refractory body having an adherent facing of ferrot-ungsten. 4. A furnace lining, comprising a refrac tory body having an adherent facing essentially of tungsten reduced from said body.
- a furnace lining comprising a refractory body having an adherent faclng of fer rotungsten reduced from said body.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
- UNITED STATES PATENT OFFICE.
FREDERICK M. BECKET, OF 1\TIAGARA FALLS, NEW YORK, ASSIGNOR TO ELECTRO METALLURGICAL COMPANY, OF NIAGARA FALLS, NEW YORK, A CORPORATION OF WEST VIRGINIA.
ELECTRIC-FURNACE LINING.
No Drawing.
Electric-Furnace Lining, of which the following is a specification.
- This invention relates to a liningfor electric furnaces, especially those which are used in the production of ferrotungsten, ferrochromium and similar alloys.
Ores of tungsten chromium and other difiicultly-reducible metals may be smelted in furnaces lined With carbon, but the reduoed metal or alloy then becomes undesirably carburized by contact with such lining. Usual linings other than carbon areexpensive and short-lived, notwithstanding the high temperatures and corrosive slagls.
According to the present invention, t ese furnaces are lined with tungsten or a tungsten alloy, preferably a ferroaalloy high in tungsten, for example one containing 80 per cent. and upward. The lining may consist of cast plates of the alloy, or of refractory blocks faced with an adherent layer of the alloy.- The plates or blocks are preferably :of ferrotungsten.
surrounded. by the 'usual Water-cooled cas-- ng.
A composite block coated with ferrotungsten may be made by molding a mixture of a tungsten ore containing iron and carbon, and heating the surface of the block to the reduction-point of the metals, either by a flame or electrically, whereby the surficial .portion is converted into-an adherent facing An electric are or arcs may be applied. tothe facing, to render it v copiel of this pe tent inay be obtained for Specification of Letters latent.
Application filed October 12, 1911.
Patented Jan. '7, 1913.
Serial no. 654,415.
dense, smooth and homogeneous. The facing of ferrotungsten may be reduced from or applied to the blocks either before or after they have been built into the electric furnace. I
A furnace lining consisting essentially of tungsten, for example a higl1-tungsten ferroalloy, has a high melting point and is chemically inert toward the slags produced in smelting ores of tungsten and chromium.
It does not contaminate the product With carbon and is much more durable than a lin ing of magnesia or silica. In operatin furnaces having such linings, it is desira le to maintain a reducing atmosphere in the furnace, to prevent oxidation of the exposed surfaces of the linin above the bath o1 I claim:
1. An electric furnace having a lining consisting of ferrotungsten.
having. a facing consisting essentially of tungsten. 1
3. A furnace lining, comprising a refractory body having an adherent facing of ferrot-ungsten. 4. A furnace lining, comprising a refrac tory body having an adherent facing essentially of tungsten reduced from said body.
5. A furnace lining, comprising a refractory body having an adherent faclng of fer rotungsten reduced from said body.
In testimony whereof, I afiix my signature i in presence of two witnesses.
FREDERICK M. 'BECKET.
Witnesses:
EUGENE A. Brmms,
CHARLES H. Porrnx.
five cents each, by addressing the Commoner of Ietente, Wellington, 30. 0."
. 2. A furnace lmlng, comprising a body i It is hereby certified that in Letters Patent No. 1,049,801, granted January 7 1913, upon the application of Frederick M. Becket, of Niagara Falls, New York,
for an improvement in Electric-Furnace Lining, an error appears in the printed specification requiring correction as follows: Page 1, line 19,- for the word notwithstanding read not withstanding; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.
Signed and sealed this 27th day of April, A. D., 1915.
[SEAL-1 J. T. NEWTON,
Acting Commissioner of Patents.
It is hereby certified. that in 'etters Patent No. 1,049,801, granted January 7,
1913, upon the applieation of Frederick M. Becket, of Niagara Falls, New York,
for an improvement in Electric-Furnace Lining, an error appears in the printed specification requiring correction as follows: Page 1, line 19,- for the word n0twithstanding read not withstanding; and that the said Letters Patent should be reed with this correction therein that the same may conform to the record of the ease in the Pzitent Ofiice. v
Signed and sealed this 27th day of April, A. D. 1915.
we J. T. NEWTON,
Acting Commissioner of Patents. 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65441511A US1049801A (en) | 1911-10-12 | 1911-10-12 | Electric-furnace lining. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65441511A US1049801A (en) | 1911-10-12 | 1911-10-12 | Electric-furnace lining. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1049801A true US1049801A (en) | 1913-01-07 |
Family
ID=3118069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US65441511A Expired - Lifetime US1049801A (en) | 1911-10-12 | 1911-10-12 | Electric-furnace lining. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1049801A (en) |
-
1911
- 1911-10-12 US US65441511A patent/US1049801A/en not_active Expired - Lifetime
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