US1459895A - Edwabd l - Google Patents
Edwabd l Download PDFInfo
- Publication number
- US1459895A US1459895A US1459895DA US1459895A US 1459895 A US1459895 A US 1459895A US 1459895D A US1459895D A US 1459895DA US 1459895 A US1459895 A US 1459895A
- Authority
- US
- United States
- Prior art keywords
- plates
- furnace
- steel
- stock line
- stock
- 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
- 239000000463 material Substances 0.000 description 14
- 230000004224 protection Effects 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 229910001018 Cast iron Inorganic materials 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 239000011572 manganese Substances 0.000 description 6
- 229910001208 Crucible steel Inorganic materials 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 2
- 210000001138 Tears Anatomy 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000003313 weakening Effects 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/08—Top armourings
Definitions
- Figure 2 is a fragmentary section on an enlarged scale showing the stock line protec-tion.
- the upper portion or stock line section 3 of the furnace is provided with the wear plates t havine flanges 5 extending in ardly of the lin-ich work to anchor the plates thereto. 'lhe plates are placed a small distance apart in order to provide for their expansion when heated.
- the top o he furnace is provided with the hopper 6, the lower portion ot' which is closed byithe hell 7. It is to he understood that in the operation of the furnace, a, charge of ore. stone or coke is placed in the hopper G and then is dumped 'into the furnace by lowering the bell 7.
- the bell 7 is operated by well known means which form no part of the present invew tion and have not been shown. This hell distributes the charge. throughout the crcumference of the furnace throwing it against the. plates 4 protectincr the stock line. y
- These plates are formed of a steel having added thereto manganese. in percentagns rurr ning over 3%.
- This manA gallese has-heen shown hy experience to forni a steel which resists wear iu this application far better than ordinary steel or cast iron.
- This manganese steel contains less than lj, yi of carbon and has the necessary hardness and strength to withstand the wear and tear To HU fr/mm it may concern.'
- 'l'his invention relates to a new and inlprovcd nic-ans for protectingr the top portion of blast furnaces known as the stoel( line, and more particularly to a composition of metal adapted for use in such protection.
- a hlast furnace is lined with refractory hrick to resist the heat action of combustion ⁇
- the colte. ore and limestone or other tluxng material are introduced into the furnace from above, and in the usual form.
- this material distributed hv means of a hell.
- This hell throws the material against the sides of a furnace adjacent the top.
- This portion of the furnace is known the stock line and protecting means must he provided or otherwise the hricltr walls are rapidly worn away by the action of the materials implnging against them. It has been common practice to protect this portion of the furnacel by means of cast iron or steel plates or hy a continuousrinlg'v of cast iron or steel.
- lt is a further object to provide material '.l' great hardness and toughness whereby the protecting plates may be made relatively iight and whereby their cost is reduced.
Description
June 26, 923r 1,459,895
E. L. IVES BLAST FURNACE STOCK LINE PROTECTION Filed Oct. 24 1921 Patented June 26, |923.
UNITED STATES PATENT OFF-ICE.
EDWARD L, IVES, OF CHICAGO, ILLINOIS, ASSIGNR T FREYN. BRASSERT & COM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.
BLASTFURNACE STOCK-LINE PROTECTION.
Application flied october 24, 1921. sierial No. 509,774.
havingr stock line protcctin,rr plates, 1u the accompanyingr drawings, in whichi Figure, liis a. somewhat diagrammatic cross section of a blast furnace; and
Figure 2 is a fragmentary section on an enlarged scale showing the stock line protec-tion.
As shown in the drawings, the upper portion or stock line section 3 of the furnace is provided with the wear plates t havine flanges 5 extending in ardly of the lin-ich work to anchor the plates thereto. 'lhe plates are placed a small distance apart in order to provide for their expansion when heated. The top o he furnace is provided with the hopper 6, the lower portion ot' which is closed byithe hell 7. It is to he understood that in the operation of the furnace, a, charge of ore. stone or coke is placed in the hopper G and then is dumped 'into the furnace by lowering the bell 7. The bell 7 is operated by well known means which form no part of the present invew tion and have not been shown. This hell distributes the charge. throughout the crcumference of the furnace throwing it against the. plates 4 protectincr the stock line. y
These plates are formed of a steel having added thereto manganese. in percentagns rurr ning over 3%. The addition ol' this manA gallese has-heen shown hy experience to forni a steel which resists wear iu this application far better than ordinary steel or cast iron. This manganese steel contains less than lj, yi of carbon and has the necessary hardness and strength to withstand the wear and tear To HU fr/mm it may concern.'
lo it` known that l, [Comuni L. Ives, a citizen of the l'nited AQtates., residing at (laicago. in the county ot @ook and State ol' lllinoh. hanl invented certain new I.1nd useful improvements in l last-If`urn:1Co Stoclehiuc Protections, ot' which the following is a specification.
'l'his invention relates to a new and inlprovcd nic-ans for protectingr the top portion of blast furnaces known as the stoel( line, and more particularly to a composition of metal adapted for use in such protection.
As is well known in the art` a hlast furnace is lined with refractory hrick to resist the heat action of combustion` The colte. ore and limestone or other tluxng material are introduced into the furnace from above, and in the usual form. this material distributed hv means of a hell. This hell throws the material against the sides of a furnace adjacent the top. This portion of the furnace is known the stock line and protecting means must he provided or otherwise the hricltr walls are rapidly worn away by the action of the materials implnging against them. It has been common practice to protect this portion of the furnacel by means of cast iron or steel plates or hy a continuousrinlg'v of cast iron or steel. These methods of protection have not been satisfactory (lue to the qualities of materials used. If cast iron is used, with its high carbon content, the. metal is' soft and the carbon which amounts to about 4% is gradually eliminated from the metal causing deterioration and weakening thertI- ot. If steel is used in which the carhon to which the stock line of the furnace is intent has heen reduced to H fj or' lower` subjected. the metal is so soft that it is easily worn I claim:
1. In a blast furnace, protectincr plates lo` cated at the stock line thereof, said plates containingrr in excess of three per cent of manganese. i2. In a. blast furnace, steel protecting plates located at the stock line thereof, -said plates containingr less than one and onehalf per cent of carbon and in excess of three per cent of manganese.
Signed at Chicago, Illinois, this th dav of October, 1921.
It is an object of my invention to provide a material for stock line wear plates which is adapted to ,give the necessary strength and esistalu'e to wear and ahrasion.
lt is a further object to provide material '.l' great hardness and toughness whereby the protecting plates may be made relatively iight and whereby their cost is reduced.
Other and further objects will appear aus the description proceeds.
In order to make clear the application of my invention, I have shown a. blast furnace EDWARD l., lVllS.
titl
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1459895A true US1459895A (en) | 1923-06-26 |
Family
ID=3404446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1459895D Expired - Lifetime US1459895A (en) | Edwabd l |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1459895A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2713481A (en) * | 1952-10-17 | 1955-07-19 | Modern Equipment Co | Cupola linings, including railroad rails |
-
0
- US US1459895D patent/US1459895A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2713481A (en) * | 1952-10-17 | 1955-07-19 | Modern Equipment Co | Cupola linings, including railroad rails |
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