JP2654898B2 - Lance pipe ignition method and lance pipe provided with ignition combustion material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, cutting, drilling, opening, ladle, and the like in a steelmaking furnace in front of a molten steel furnace.
Used when cleaning nozzles of electric furnaces, etc., or structures and other structures such as reinforced concrete, metal materials such as steel frames, refractories such as refractory bricks, structures in rocks or water, reefs Lance pipe ignition method and ignition for devising the tip of a lance pipe used when performing drilling, cutting, demolition work, etc. while melting a workpiece such as The present invention relates to a lance pipe having a combustion material.

[0002]

2. Description of the Related Art Conventionally, metal materials (for example, steel pipes and the like) are appropriately used.
When the tip of the lance pipe constituted by the lance pipe is burned, if the tip of the lance pipe is not sufficiently heated (melted state), it will not easily ignite, and even if ignited, it will easily be misfired. For this reason, for example, the tip of the lance pipe is ignited by melting it with an oxygen acetylene cutting machine, or burning materials such as wood, charcoal, coke, etc. Means for ignition and the like are employed.

[0003]

However, the above-mentioned means requires an oxygen acetylene cutting machine and its peripheral equipment, and has a disadvantage that the ignition operation becomes large. Also, when burning materials such as wood, charcoal, coke, etc., it is necessary to secure a place for burning them, and there is a problem that ignition of the tip of the lance pipe takes a relatively long time. . Particularly, at the time of drilling a nozzle such as a ladle, washing, or opening a gate of a cupola at a steel mill or a steel mill, a lance pipe having its tip burned in advance is relatively high. The lance pipe is burned at the tip of the lance pipe, so that the lance pipe is burned, and it is difficult to accurately hit the desired position. In addition, it is difficult to apply the tip of the lance pipe, which is relatively heavy and long, to the perforated portion at a relatively high place, and there are difficulties such as physical strength and skill required for this work, and a misfire while moving, etc. . In addition, this type of lance pipe is simple, small, lightweight, bulky, easy to handle, easy to use, and stably and efficiently heats the lance pipe tip. What can be burned has conventionally been desired.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been created to solve the above-mentioned difficulties and the like, and a lance pipe ignition method according to claim 1 is provided. At the same time, the ignition combustion material A is attached to the tip of P, and the ignition combustion material A is moved to a predetermined position on the workpiece. And the oxygen from the oxygen cylinder
The fuel is supplied into the lance pipe P through a hose, and is ejected from the tip of the lance pipe P.
Is pressed against a predetermined position of the workpiece to be heated in a high temperature state to burn the ignition material 5 of the combustion material A for ignition. Then, means for burning the igniting material 6 of the igniting combustion material A by burning the igniting material 5 and burning the tip portion of the lance pipe P by burning the igniting material 6 is employed.

In the lance pipe provided with the ignition combustion material according to the second aspect, the outer pipe P1 of the lance pipe P
A igniting material interior space P3 is provided at the tip portion, and the igniting material 6 is filled in the igniting material interior space P3, and the igniting material 5 is disposed so as to penetrate the igniting material 6, and the igniting material interior of the outer tube P1 is provided. Means for perforating a combustion flame outlet P4 capable of passing oxygen behind the space P3 is employed.

[0006]

According to the method for igniting a lance pipe according to the first aspect of the present invention, oxygen from an oxygen cylinder is supplied into the lance pipe P via a hose, and the lance pipe P is attached to a tip portion of the lance pipe P. The ignition combustion material A is moved to a predetermined position of the workpiece, and is pressed against a predetermined position of the workpiece in a high temperature state. Then, the igniting material 5 of the igniting combustion material A is burned by the heat of the workpiece, and
The combustion of the igniting material 5 causes the igniting material 6 of the igniting combustion material A to burn, and the combustion flame of the igniting material 6 and the lance pipe P
The tip of the lance pipe P is heated in a short time by the oxygen ejected from the tip and burns.

Further, in the lance pipe provided with the ignition combustion material according to the second aspect, the ignition material 6 is filled in the ignition material interior space P3 at the tip of the outer tube P1 of the lance pipe P, and The igniting material 5 is disposed so as to penetrate the igniting material 6, and the entirety of the igniting material 5 is burned by igniting the tip of the igniting material 5. Burn.
Then, oxygen is blown to the burning portion of the igniting material 6, and the combustion flame is blown out from the combustion flame blowing hole P4 while the base end of the lance pipe P slightly returns along the inner peripheral surface of the outer pipe P1. Then, the tip of the lance pipe P is heated and burned.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. A shown in FIG. 1 and FIG. 2 indicates an ignition combustion material. The ignition combustion material A is filled into the case 1 having a substantially bottomed cylindrical shape that can be attached to the tip of the lance pipe P. A part of the ignition material 6 is disposed through a substantially central line of the case 1 so as to penetrate the ignition material 6 and through a through hole 3 formed at the center of the bottom plate at the tip of the case 1. An opening portion around the base end of the case 1 serves as a mounting portion 2 to the leading end of the lance pipe P.

The case 1 is formed of an appropriate material such as wood, paper, metal, ceramic or the like into an appropriate shape.
This is configured so that it can be attached to the distal end portion of the lance pipe P by caulking, bonding, or forcibly inserting a fitting material as appropriate. By the way, the mounting portion 2 is appropriately provided with a space between the inner peripheral surface and the outer surface of the lance pipe P, through which oxygen (and the combustion flame of the ignition material 6) ejected from the tip of the lance pipe P can pass. And
The combustion flame when the igniting material 6 is burned through this space is blown out by passing through the ejection pressure of oxygen, and the lance pipe P
The tip is designed to be heated and burned over a wide range.

[0010] The squib 5 is, for example, an explosive, a squib,
It is configured to burn easily by using fired charcoal powder, oiled paper, oiled cloth, or those coated with explosives. Further, the igniting material 6 is formed by, for example, binding iron powder, charcoal powder (coke, charcoal, coal) or the like with a molten wax or an adhesive, or forming an iron wire, a titanium wire, or a coil shape. Made of titanium wire, steel wool or the like.

A lance pipe P shown in FIGS.
Consists of an outer tube P1 and a filler P2 filled so as to leave an oxygen passage in the outer tube P1, and an ignition material interior space P3 is provided in a tip portion of the outer tube P1 of the lance pipe P (the outer space P3). The igniting material interior space P3 is provided so as not to dispose the filler material P2 at the end of the pipe P1), and the igniting material 6 is filled in the igniting material interior space P3 and the lid 7 is formed.
, The tip of the outer tube P1 is closed, and the above-described firing material 5 is arranged so as to penetrate the lid 7 and the firing material 6. Further, a combustion flame blow-out hole P4 is formed behind the ignition material interior space P3 of the outer pipe P1, so that the filler P2
The oxygen supplied to the space surrounded by the
1 is configured to pass through the space between the inner peripheral surface and the outer surface of the filler P2 and to be ejected to the outside of the lance pipe P via the combustion flame outlet P4. That is, the combustion flame when the igniting material 6 is burned is ejected from the combustion flame blowing hole P4 through the space between the inner peripheral surface of the outer tube P1 and the outer surface of the filler P2 by the pressure of the oxygen jet, The tip of the lance pipe P is configured to be heated and burned over a wide range. The lid 7 need not be provided if the ignition material 6 filled in the ignition material interior space P3 does not deviate.

Incidentally, the specific configuration of the lance pipe P,
Shape, size, material, specific configuration, shape, size, material of outer tube P1, specific configuration, shape, size, material of filler P2, specific size of ignition material interior space P3, combustion flame outlet P
4 specific configuration, shape, size, arrangement position, number, specific configuration and material of ignition combustion material A, specific configuration, shape, dimension, material of case 1, mounting means to lance pipe P, insertion Specific shape, size, arrangement position of hole 3, specific configuration, shape, size, arrangement position, material of ignition material 5, specific configuration, shape, dimension, material of ignition material 6, and lid 7 The specific configuration, shape, dimensions, material, and the like are not limited to those shown in the drawings, but can be freely set as appropriate.

Next, a method of igniting the lance pipe of the present invention using the lance pipe P constructed as described above will be described. First, the ignition combustion material A attached to the tip of the lance pipe P is covered. The molten material is moved to a predetermined position, and oxygen from the oxygen cylinder is supplied into the lance pipe P via a hose to be ejected from the tip of the lance pipe P. Then, the tip portion of the ignition combustion material A is pressed against a predetermined position of the workpiece to be heated in a high temperature state, and the ignition material 5 is pressed.
Is ignited, and the igniter 5 is burned. Further, the combustion of the igniting material 5 causes the igniting material 6 of the igniting combustion material A to burn from the center and the rear end thereof. Then, the tip of the lance pipe P is burned by the combustion flame of the ignition material 6 and the oxygen ejected from the tip of the lance pipe P.

[0014]

Therefore, the lance pipe P according to claim 1
In the ignition method, the ignition combustion material A is attached to the tip portion of the lance pipe P, and the ignition combustion material A is moved to a predetermined position of the workpiece to be cut, and oxygen from the oxygen cylinder is removed.
The fuel is supplied into the lance pipe P through a hose, and is ejected from the tip of the lance pipe P.
Is pressed against a predetermined position of the workpiece to be heated in a high temperature state to burn the igniting material 5 of the igniting combustion material A, and the igniting material 6 of the igniting combustion material A is burned by the combustion of the igniting material 5. The lance pipe P is burned and the tip of the lance pipe P is burned by the burning of the igniting material 6. Therefore, the lance pipe P can be easily, reliably, quickly and safely removed without a large-scale ignition facility. You will be able to burn. In other words, this is an easy and optimal means for igniting the lance pipe P. In particular, in steel mills and steel mills, when drilling nozzles such as taps and ladles in blast furnaces,
At the time of washing or opening of the cupola of the cupola, the ignition combustion material A at the tip of the lance pipe P can be accurately applied to a desired position to perform the operation, and this operation does not require physical strength and skill. In addition, it is possible to solve the problem of misfiring while moving.

Further, in the lance pipe having the ignition combustion material according to the second aspect, an ignition material interior space P3 is provided at a tip portion of the outer tube P1 of the lance pipe P, and the ignition material interior space P3 is provided.
The inside is filled with the igniting material 6 and the igniting material 5 is disposed so as to penetrate the igniting material 6.
The combustion flame blow-out hole P4 is provided behind, so that the igniting material 5 can be easily burned by a match or a lighter, and the igniting material 6 is surely burned by the combustion of the igniting material 5. The lance pipe P can be burned, and the combustion of the ignition material 6 can generate sufficient energy to heat and burn the lance pipe P, so that the lance pipe P can be reliably burned. .
In addition, the lance pipe P provided with the combustion material for ignition is simply
It can be made small and lightweight, not bulky,
Easy to handle and easy to use lance pipe P
Becomes

In particular, since the combustion flame outlet P4 is formed behind the ignition material interior space P3 of the outer tube P1, oxygen is blown to the combustion portion of the ignition material 6 and this combustion flame is discharged by the outer tube P3.
(1) The base end of the lance pipe P slightly returns along the inner peripheral surface, and is blown out from the combustion flame outlet P4 to heat and burn the front end portion of the lance pipe P over a relatively wide range. The tip of the lance pipe P can be very stably and efficiently heated and burned.
Further, the oxygen and the combustion flame of the igniting material 6 which are ejected by the combustion flame outlet P4 of the outer pipe P1 move smoothly along the front surface inside the outer pipe P1 and are ejected from the combustion flame outlet P4. .

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a combustion material for ignition.

FIG. 2 is a partially cutaway front view showing a state in which a combustion material for ignition is mounted on a lance pipe.

FIG. 3 is a partially cutaway perspective view of a lance pipe of the present invention, with a part omitted.

FIG. 4 is a partially omitted longitudinal front view of the lance pipe of the present invention.

[Explanation of symbols]

P Lance pipe P1 Outer pipe P2 Filling material P3 Ignition material interior space P4 Combustion flame blow-out hole A Ignition combustion material 1 Case 2 Mounting part 3 Insertion hole 5 Induction material 6 Ignition material 7 Lid

Claims (2)

(57) [Claims] An ignition combustion material is attached to a tip portion of a lance pipe, and the ignition combustion material is moved to a predetermined position on a workpiece to be cut. Oxygen from an oxygen cylinder is supplied to the lance pipe via a hose. Into the lance pipe and eject it from the tip of the lance pipe. At the same time, the tip of the igniting combustion material is pressed against a predetermined position of the workpiece to be heated to burn the igniting material of the ignition combustion material. A method of igniting a lance pipe, characterized in that the igniting material of the igniting combustion material is burned by burning the igniting material, and the tip of the lance pipe is burned by burning of the igniting material. 2. An igniting material interior space is provided at a tip portion of an outer tube of a lance pipe, an igniting material is filled in the igniting material interior space, and a igniting material is arranged so as to penetrate the igniting material. A lance pipe provided with a combustion material for ignition, characterized in that a combustion flame outlet is formed behind the interior space of the ignition material.