US2207102A - Igniting device - Google Patents
Igniting device Download PDFInfo
- Publication number
- US2207102A US2207102A US2207102DA US2207102A US 2207102 A US2207102 A US 2207102A US 2207102D A US2207102D A US 2207102DA US 2207102 A US2207102 A US 2207102A
- Authority
- US
- United States
- Prior art keywords
- oxygen
- torch
- aperture
- ladle
- steel
- 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
- 239000001301 oxygen Substances 0.000 description 38
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 38
- 229910052760 oxygen Inorganic materials 0.000 description 38
- 235000010599 Verbascum thapsus Nutrition 0.000 description 34
- 239000011449 brick Substances 0.000 description 18
- 241001088417 Ammodytes americanus Species 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000007789 gas Substances 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 240000000969 Verbascum thapsus Species 0.000 description 10
- 238000002844 melting Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J17/00—Forge furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/22—Auxiliary equipment, e.g. backings, guides
Definitions
- This invention relates to igniting devices, and more particularly to those used for igniting oxygen torches or so called oxygen lances.
- oxygen torches or so called oxygen lances arel used; and in some cases the torch is ignited by the heat of the device to which it is applied.
- attention is called to blast furnaces, open hearth furnaces and other types of metal furnaces used in steel mills wherein the temperature is extremely high.
- these torches are used in steel mills for freeing the stopper head in hotmetal pouring ladles.
- These hot-metal pouring ladles are lined with refractory brick and constructed with a small opening in the bottom through which the hot metal is teemed into ingot molds or the like.
- this small opening in the bottom of the ladle is closed by means of a stopper rod which is made up of suitably shaped superposed refractory sections which are fitted over a steel rod, the latter being provided with means for controlling its position outside of the ladle.
- this stopper rod The lowermost end of this stopper rod, and therefore that which is adapted to close the small opening in the bottom of the ladle, is called the stopper head and it is -this part of the stopper rod which frequently sticks to the small opening or nozzle of the ladle. Whenever such sticking. occurs it is necessary to use an oxygen torch or so called oxygen lance to free these two parts. In order to operate the torch it is necessary to ignite the same b-y raising the steel in the tip thereof to melting temperature, thereby supporting combustion in the presence of the oxygen passing therethrough. However, there are times during which the temperature of the nozzle or small opening in the bottom of the ladle is not sufficiently high to raise the steel in the tip of the torch to melting temperature to thereby ignite the torch.
- Another object is the provision of a device of the class described which is easy and inexpensive to manufacture and use.
- Figure 1 is a plan of the device of the invention.
- Figure 2 is a sectional elevation on the line II-lI of Figure 1.
- the numeral 2 designates .a refractory brick having a central aperture 3 extending therethrough. Referring more particularly to' Figure 2 this aperture'3 terminates at the top of the brick 2 in an ⁇ enlarged recess, indicated at 5, the purpose of which will be later described.
- This refractory brick 2 is disposed with its aperture extending vertically in a metallic container l, the bottom of which is provided with an annular inwardly extending portion 8 which terminates short of the aperture 3 in the said brick.
- an ignition plate I2 which is secured to the support 9 as by welds I3.
- the ignition plate I2 while not in contact with the refractory brick 2, extends across the aperture 3 therein and in adjacent relationship With respect thereto.
- a gas line' I5 is extended into the bottom of the aperture 3 in the refractory brick 2 and to one side thereof in such manner as to permit of the extension of the oxygen torch or oxygen lance into and through the said aperture,
- gas is supplied through the gas line I5 and ignited in any suitable manner.
- the oxygen torch or lance II is connected to a source of oxygen supply and disposed to extend through the aperture 3 in the refractory brick 2 in the manner illustrated in dotted lines in Figure 2. rI'he tip of the torch I'I is thus in contact with the ignition plate I2 which is composed of steel or other suitable material, and this ignition plate I2 is quickly heated by the gas from the gas line I5 and oxygen flame resulting from the ignition of the oxygen passing out of the lance II.
- the sai-d ignition plate Due to the rapid heating of the ignition plate I2 by the gas and oxygen name, the sai-d ignition plate rapidly heats the tip of the torch to its melting point which, in turn, starts the combustion of the steel tip on the torch. The torch is then ready for its intended use, such as freeing the stopper head of the ladle stopper rod from the nozzle or small opening in the bottom of the ladle.
- An igrliting device for oxygen torches and the like comprising, in combination, a support, a refractory element carried. by said support, said refractory element having a vertical aperture extending therethrough, means for supplying a combustible gas through said aperture, and a metallic plate disposed above and over the aperture in said refractory element.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
P. D. NIELSEN IGNITING DEVICE July 9, 1940;
Filed oct. 7, 1959 Patented July 9, 1940 IGNITING DEVICE Peer D. Nielsen, Lorain, Ohio, assigner to l National Tube Company, a corporation of New Jersey Application October 7,
2 oiaims.
This invention relates to igniting devices, and more particularly to those used for igniting oxygen torches or so called oxygen lances.
There are numerous instances wherein oxygen torches or so called oxygen lances arel used; and in some cases the torch is ignited by the heat of the device to which it is applied. As a typical instance of such use, attention is called to blast furnaces, open hearth furnaces and other types of metal furnaces used in steel mills wherein the temperature is extremely high. Even more commonly these torches are used in steel mills for freeing the stopper head in hotmetal pouring ladles. These hot-metal pouring ladles are lined with refractory brick and constructed with a small opening in the bottom through which the hot metal is teemed into ingot molds or the like. In most instances this small opening in the bottom of the ladle is closed by means of a stopper rod which is made up of suitably shaped superposed refractory sections which are fitted over a steel rod, the latter being provided with means for controlling its position outside of the ladle.
The lowermost end of this stopper rod, and therefore that which is adapted to close the small opening in the bottom of the ladle, is called the stopper head and it is -this part of the stopper rod which frequently sticks to the small opening or nozzle of the ladle. Whenever such sticking. occurs it is necessary to use an oxygen torch or so called oxygen lance to free these two parts. In order to operate the torch it is necessary to ignite the same b-y raising the steel in the tip thereof to melting temperature, thereby supporting combustion in the presence of the oxygen passing therethrough. However, there are times during which the temperature of the nozzle or small opening in the bottom of the ladle is not sufficiently high to raise the steel in the tip of the torch to melting temperature to thereby ignite the torch.
It is among the objects of the present invention to provide an ignting device for oxygen torches or so called oxygen lances whereby the same may be readily ignited at all times.
Another object is the provision of a device of the class described which is easy and inexpensive to manufacture and use.
The foregoing and other objects will be apparent after referring to the drawing, in which:
Figure 1 is a plan of the device of the invention; and
Figure 2 is a sectional elevation on the line II-lI of Figure 1.
1939, serial No. 298,469
Referring more particularly tothe drawing, the numeral 2 designates .a refractory brick having a central aperture 3 extending therethrough. Referring more particularly to'Figure 2 this aperture'3 terminates at the top of the brick 2 in an` enlarged recess, indicated at 5, the purpose of which will be later described.
This refractory brick 2 is disposed with its aperture extending vertically in a metallic container l, the bottom of which is provided with an annular inwardly extending portion 8 which terminates short of the aperture 3 in the said brick.
'Ihe container I is secured in vertical position to a suitable support 9, as by means of top and bottom Welds, indicated a-t I0.
Immediately above the container I and the v contained refractory brick 2 there is disposed an ignition plate I2 which is secured to the support 9 as by welds I3. Referring to Figure 2 it will be noted that the ignition plate I2, while not in contact with the refractory brick 2, extends across the aperture 3 therein and in adjacent relationship With respect thereto.
A gas line' I5 is extended into the bottom of the aperture 3 in the refractory brick 2 and to one side thereof in such manner as to permit of the extension of the oxygen torch or oxygen lance into and through the said aperture,
In operation:
When it is desired to ignite the oxygen torch or oxygen lance, designated hereinafter at I'I, gas is supplied through the gas line I5 and ignited in any suitable manner. The oxygen torch or lance II is connected to a source of oxygen supply and disposed to extend through the aperture 3 in the refractory brick 2 in the manner illustrated in dotted lines in Figure 2. rI'he tip of the torch I'I is thus in contact with the ignition plate I2 which is composed of steel or other suitable material, and this ignition plate I2 is quickly heated by the gas from the gas line I5 and oxygen flame resulting from the ignition of the oxygen passing out of the lance II. Due to the rapid heating of the ignition plate I2 by the gas and oxygen name, the sai-d ignition plate rapidly heats the tip of the torch to its melting point which, in turn, starts the combustion of the steel tip on the torch. The torch is then ready for its intended use, such as freeing the stopper head of the ladle stopper rod from the nozzle or small opening in the bottom of the ladle.
While I have shown and described one specific embodiment of the present invention, it will be 2. An igrliting device for oxygen torches and the like comprising, in combination, a support, a refractory element carried. by said support, said refractory element having a vertical aperture extending therethrough, means for supplying a combustible gas through said aperture, and a metallic plate disposed above and over the aperture in said refractory element.
PEER D. NIELSEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US2207102A true US2207102A (en) | 1940-07-09 |
Family
ID=3431340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US2207102D Expired - Lifetime US2207102A (en) | Igniting device |
Country Status (1)
Country | Link |
---|---|
US (1) | US2207102A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3193269A (en) * | 1962-11-09 | 1965-07-06 | Hammon Prec Equipment Company | Flame hardening mechanism |
US3592457A (en) * | 1968-11-20 | 1971-07-13 | Freeman Corp | Process and composition for sealing and discharging metallurgical furnaces and other vessels |
US5452655A (en) * | 1993-05-19 | 1995-09-26 | Tani Denkikogyo Co., Ltd. | Screen printing apparatus for printing of viscous material |
-
0
- US US2207102D patent/US2207102A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3193269A (en) * | 1962-11-09 | 1965-07-06 | Hammon Prec Equipment Company | Flame hardening mechanism |
US3592457A (en) * | 1968-11-20 | 1971-07-13 | Freeman Corp | Process and composition for sealing and discharging metallurgical furnaces and other vessels |
US5452655A (en) * | 1993-05-19 | 1995-09-26 | Tani Denkikogyo Co., Ltd. | Screen printing apparatus for printing of viscous material |
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