JP3541393B2 - Ignition material for oxygen lance pipe and method for igniting oxygen lance pipe - Google Patents

Description

[0001]
[Industrial applications]
The present invention is used, for example, in a steel mill, when performing a cutting operation, a drilling, an opening, a ladle, a cleaning operation of a nozzle of an electric furnace, etc. in a furnace operation before a molten steel furnace, or Drilling, cutting, demolition work, etc. while melting structures such as reinforced concrete, other structures, metal materials such as steel frames, refractories such as firebricks, rocks, or underwater structures, rocks and other refractory materials. The present invention relates to an ignition material for an oxygen lance pipe and a method of igniting the oxygen lance pipe which is designed so that the tip portion of the lance pipe used when performing the above operation can be easily and reliably ignited and burned.
[0002]
[Prior art]
Conventionally, when the tip of the lance pipe is ignited, for example, the tip of the lance pipe is melted with an oxygen acetylene cutting machine (or an arc cutting machine) to ignite, or burning materials such as wood, charcoal and coke are used. Means for burning the fuel and igniting the tip of the lance pipe using the heat of combustion are employed.
[0003]
[Problems to be solved by the invention]
However, in the means as described above, an oxygen acetylene cutting machine (or an arc cutting machine) and its peripheral equipment are required, and the ignition work is relatively large, and the combustible gas explodes depending on handling. There is a fear that there is a problem in safety. Means for burning combustion materials such as wood, charcoal, coke, and the like must secure a place for burning the combustion materials and have the disadvantage that it takes a relatively long time to ignite the tip of the lance pipe. Was.
[0004]
[Means for Solving the Problems]
In view of the above, the present invention has been created in order to solve the above-mentioned difficulties and the like existing in the prior art. The ignition material A for an oxygen lance pipe according to claim 1 mainly includes wood, compressed paper material and the like. An ignition insertion hole 2 into which a tip portion of a lance pipe P can be inserted is provided in an ignition material base 1 made of an appropriate material. Then, the ignition combustion material 3 is formed by solidifying metal powder mainly composed of iron with a binder such as wax or resin. Then, a means is employed in which the ignition combustion material 3 is installed inside the ignition insertion hole 2 so that the lance pipe P insertion space remains near the opening.
[0005]
Further, in the method for igniting a lance pipe according to claim 2, oxygen from an oxygen cylinder is supplied into the lance pipe P via a hose and ejected from the tip of the lance pipe P. The tip portion is inserted into the ignition insertion hole 2 of the ignition material base 1 mainly made of wood, compressed paper, or the like, and an appropriate kind of fire is inserted into the ignition insertion hole 2. Then, the igniting material base 1 is ignited by return oxygen which is ejected from the tip of the lance pipe P and moves through the gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2 toward the opening of the ignition insertion hole 2. The inner wall of the insertion hole 2 is burned. Then, in the primary combustion by the combustion of the inner wall portion of the ignition insertion hole 2, ignition is performed by solidifying metal powder mainly composed of iron, which is preliminarily provided in the ignition insertion hole 2, with a binder such as wax or resin. The combustion material 3 is burned. Then, a means for burning the distal end portion of the lance pipe P in the ignition insertion hole 2 by the secondary combustion having a large calorific value due to the combustion of the ignition combustion material 3 is employed.
[0006]
[Action]
Thus, in the ignition material A for an oxygen lance pipe according to the first aspect, the ignition material base 1 is mainly made of wood, compressed paper, or the like so as to easily burn and reduce the burning speed. In the ignition insertion hole 2 provided in the ignition material base 1, metal powder mainly composed of iron is solidified with a binder such as wax or resin so as to increase the calorific value during combustion. A combustion material for ignition 3 is provided. In addition, near the opening of the ignition insertion hole 2 in which the ignition combustion material 3 is provided, an insertion space is provided in which the tip of the lance pipe P can be inserted. The oxygen spouted from the tip of the pipe P moves toward the opening of the ignition insertion hole 2 through the gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2.
[0007]
In the method for igniting the lance pipe P according to the second aspect, oxygen is supplied from the oxygen cylinder into the lance pipe P via a hose, and is inserted into the ignition insertion hole 2 of the ignition base 1. The lance pipe P is ejected from the tip and moves in the gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2 toward the opening of the ignition insertion hole 2. Then, by appropriately inserting a fire into the ignition insertion hole 2, the inner wall surface portion of the ignition insertion hole 2 is burned. Next, the combustion of the inner wall surface portion of the ignition insertion hole 2 becomes primary combustion, and burns the ignition combustion material 3 having a large calorific value, which is preliminarily installed in the ignition insertion hole 2. Further, the combustion of the ignition combustion material 3 becomes secondary combustion, and the tip portion of the lance pipe P in the ignition insertion hole 2 is heated and burns.
[0008]
【Example】
Hereinafter, the present invention will be described with reference to illustrated examples.
In the figure, A indicates an ignition material for an oxygen lance pipe of the present invention. This ignition material A is easily burned mainly by a suitable material such as wood, compressed wood, or compressed paper, and has a burning speed. Is formed in a substantially rectangular parallelepiped shape, and an appropriate number of ignition insertion holes 2 are provided on the upper surface of the ignition material base 1 so that the leading end of the lance pipe P can be inserted. (For example, as shown in the drawing, two columns are provided in a total of four places in a vertical and horizontal direction.) Then, in the ignition insertion hole 2, metal powder mainly composed of iron is solidified with a binder such as wax or resin. The igniting combustion material 3 configured to generate a large amount of heat at the time of combustion is provided so that the lance pipe P insertion space remains near the opening.
[0009]
The igniting material base 1 is configured by, for example, providing four igniting insertion holes 2 having a depth of about 8 cm in a cubic tree piece having a side of about 10 cm. Also, the oxygen injected from the tip of the lance pipe P moves smoothly in the gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2 toward the opening of the ignition insertion hole 2. The dimensions (inner diameter, depth, shape) of the lance pipe P are appropriately set according to the dimensions (outer diameter) of the lance pipe P and the like.
[0010]
The igniting combustion material 3 is constituted by, for example, putting a binder such as wax into a kettle, melting it, adding a metal powder such as iron powder, mixing, and cooling. At this time, it is preferable that the volume ratio of the metal powder in the ignition combustion material 3 is 95% or more. The ignition combustion material 3 configured as described above is filled into the ignition insertion hole 2 such that the lance pipe P insertion space remains at least about 1 cm near the opening. The ignition material 3 includes, for example, an explosive, a squib, an extinguisher powder, an oiled paper, an oiled cloth, or an ignition material formed by applying an explosive thereto. May be buried so as to be exposed so that the ignition combustion material 3 can be easily burned.
[0011]
Incidentally, the specific configuration, shape and size of the ignition material A, the specific shape, size and material of the ignition material base 1, the specific shape, size, number, arrangement position, and the ignition combustion material 3 of the ignition insertion holes 2 The specific configuration, material, and specific configuration, material, ratio, and the like of the metal powder and the binder are not limited to those in the illustrated example and the like, and can be freely set as appropriate.
[0012]
In the method of igniting the oxygen lance pipe P of the present invention using the ignition material A configured as described above, first, oxygen from an oxygen cylinder is supplied into the lance pipe P via a hose, Let it squirt slightly from the P tip. In addition, at the same time, the tip of the lance pipe P is inserted into the ignition insertion hole 2 of the ignition base 1 mainly made of wood or compressed paper. Next, a suitable type of fire, such as a match, a lighter, a lanyard, a stake, or the like, is inserted into the ignition insertion hole 2 and spouted from the tip of the lance pipe P, and the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2 The inner wall surface of the ignition insertion hole 2 of the ignition base 1 is burned by the return oxygen moving toward the opening of the ignition insertion hole 2 in the gap. Then, by burning (primary combustion) of the inner wall surface portion of the ignition insertion hole 2, iron-based metal powder preliminarily provided in the ignition insertion hole 2 is solidified with a binder such as wax or resin. The combustion material for ignition 3 is burned. Then, by the combustion (secondary combustion) of the ignition combustion material 3 having a large calorific value, which can be raised to the combustion temperature of the lance pipe P, the tip of the lance pipe P in the ignition insertion hole 2 of the ignition material base 1 is formed. Burn parts. The distal end of the lance pipe P is ejected from the distal end of the lance pipe P and returns oxygen moving toward the opening of the ignition insertion hole 2 through the gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2. Then, the combustion (secondary combustion) flame of the ignition combustion material 3 ignites (heats and burns) in a short time so as to be entirely covered.
[0013]
【The invention's effect】
Therefore, the ignition material A for an oxygen lance pipe according to claim 1 has an ignition insertion hole 2 into which the tip portion of the lance pipe P can be inserted into an appropriate ignition material base 1 mainly made of wood, compressed paper, or the like. A combustion material for ignition 3 obtained by solidifying metal powder mainly composed of iron with a binder such as wax or resin is provided inside the ignition insertion hole 2 so that the lance pipe P insertion space remains near the opening. With this configuration, the lance pipe P can be ignited easily, reliably, quickly, and safely by a lighter, a match, or the like, without the need for a large-scale ignition facility. Will be able to Moreover, the ignition material A can be configured to be relatively small and light in weight, which is convenient for carrying, transporting, and storing. This makes it easy and optimal as an ignition means for this kind of lance pipe P. Lance pipe P used in a narrow and limited space such as water supply and sewage works, and an ignition material A for the lance pipe P used in emergency and emergency situations.
[0014]
The lance pipe P can be used repeatedly as many times as necessary until the combustion material 3 for combustion is consumed and consumed, and a considerable number of the lance pipes P can be ignited. Will be excellent. Moreover, a plurality of ignition insertion holes 2 are provided in the ignition material A, and the ignition combustion material 3 is housed therein, so that one ignition material A can ignite more lance pipes P. It will be more economical.
[0015]
In particular, the ignition combustion material 3 obtained by solidifying metal powder mainly composed of iron with a binder such as wax or resin is mainly made of wood or compressed paper material such that the space for inserting the lance pipe P remains near the opening. And so on, the inner wall portion of the ignition insertion hole 2 of the ignition material base 1 is easily burned, and the primary combustion is performed at a slow burning speed. In the combustion material 3 for ignition, metal powder mainly composed of iron is burned, the combustion speed is high, secondary combustion with a large calorific value is performed, and oxygen ejected from the tip of the lance pipe P is The gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2 is moved toward the opening of the ignition insertion hole 2 so as to entirely cover the tip of the lance pipe P, thereby promoting its combustion. Lance pipe P tip Ignition is to be reliably and quickly.
[0016]
Further, according to the ignition method of the lance pipe P, the oxygen from the oxygen cylinder is supplied into the lance pipe P via a hose, and is spouted from the tip of the lance pipe P. Is inserted into the ignition insertion hole 2 of the ignition material base 1 mainly made of wood, compressed paper, or the like, and an appropriate kind of fire is inserted into the ignition insertion hole 2 to be ejected from the tip of the lance pipe P. The return oxygen moving through the gap between the outer surface of the lance pipe P and the inner wall surface of the ignition insertion hole 2 toward the opening of the ignition insertion hole 2 burns the inner wall of the ignition insertion hole 2 of the ignition material base 1, In the primary combustion by the combustion of the inner wall portion of the ignition insertion hole 2, ignition combustion is performed by solidifying metal powder mainly composed of iron, which is preliminarily provided in the ignition insertion hole 2, with a binder such as wax or resin. Burn the material 3 Since the tip portion of the lance pipe P in the ignition insertion hole 2 is burned by the secondary combustion having a large calorific value due to the combustion of the ignition combustion material 3, oxygen is supplied from the oxygen cylinder via a hose. An igniting material which is supplied into the lance pipe P and is easily ignited by an appropriate fire type which is ejected from a tip portion of the lance pipe P inserted into the igniting insertion hole 2 of the igniting material base 1 and put into the igniting insertion hole 2 The inner wall surface of the ignition insertion hole 2 of the base 1 can be easily burned. Further, the combustion (primary combustion) of the inner wall surface portion of the ignition insertion hole 2 ensures that the ignition combustion material 3 preliminarily provided in the ignition insertion hole 2 is burned. At the time of combustion (secondary combustion) of the combustion material 3, combustion at a higher temperature is possible, and the tip of the lance pipe P, which is relatively difficult to ignite, in the ignition insertion hole 2 of the ignition material base 1 is removed. It will surely burn. That is, the lance pipe P, which is relatively difficult to ignite, can be ignited in a stepwise and reliable manner, so that this kind of lance pipe P can be easily and optimally ignited.
[Brief description of the drawings]
FIG. 1 is a perspective view of an ignition material for an oxygen lance pipe of the present invention.
FIG. 2 is a sectional view of an ignition material for an oxygen lance pipe according to the present invention.
[Explanation of symbols]
P Lance pipe A Ignition material 1 Ignition material base 2 Ignition insertion hole 3 Ignition combustion material

Claims (2)

An ignition hole, into which the tip of the lance pipe can be inserted, is provided in an appropriate ignition material base mainly made of wood or compressed paper material, and metal powder mainly composed of iron is solidified with a binder such as wax or resin. An ignition igniting material for an oxygen lance pipe, wherein the ignition igniting material is formed inside the ignition insertion hole such that the lance pipe insertion space remains near the opening. Oxygen from the oxygen cylinder is supplied into the lance pipe through a hose, and at the same time, is ejected from the tip of the lance pipe. The tip of the lance pipe is ignited by an ignition material base mainly made of wood, compressed paper, or the like. The lance pipe is ejected from the tip of the lance pipe, and the gap between the outer surface of the lance pipe and the inner wall surface of the ignition insertion hole is directed toward the opening of the ignition insertion hole. The returning oxygen that is moved causes the inner wall portion of the ignition insertion hole of the ignition material base to burn, and the primary combustion resulting from the combustion of the inner wall portion of the ignition insertion hole results in iron-based metal that is preliminarily embedded in the ignition insertion hole. The ignition combustion material, which is obtained by solidifying the powder with a binder such as wax or resin, is burned, and the secondary combustion having a large calorific value due to the combustion of the ignition combustion material causes the lamination in the ignition insertion hole. Oxygen lance pipe method ignition which is characterized in that to make allowed to burn a tip of Supaipu.

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