JPS6037371A - Method and apparatus for welding and drilling concrete structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to structures such as reinforced concrete 1 and the like, metal materials such as steel frames, refractories such as fire bricks, structures in rocks or underwater, and coverings such as reefs. The present invention relates to a method and apparatus for cutting and drilling concrete structures, etc., for drilling, cutting, and demolishing a molten material while melting it.

Conventionally, cutting and drilling of materials to be melted have been carried out using gas cutting, powder lance, oxygen lance, etc. However, in the case of gas cutting, the cutting torch is easily damaged and it is difficult to cut concrete structures. In the case of a powder lance, powder such as iron powder is continuously fed to the oxy-combustion part, so some of the powder remains unburned and scatters around. There was a risk that the oxygen or compressed air used to feed the powder could backfire and cause an explosion. In addition, in the case of an oxygen lance, each time the lance wears out, a new lance must be attached to the holder, and the process must be repeated by re-igniting the lance, which is both troublesome and inefficient.

Moreover, 1. Those configured to cause the lance to burn and react with an appropriate flammable gas have problems such as the risk of explosion if the lance misfires.

Therefore, the present invention was created to solve the above-mentioned problems.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, the metal wire 1 is wound around a pair of glue 2, respectively.
is unwound from the reel 2, and the tips of the gold side 1 are brought close to each other via the metal wire guide 3. J, an arc is generated between the ends of the metal wire 1 by the arc generator 4, and the ends of the metal wire 1 are melted.

Then, oxygen and combustible gas are ejected from the oxygen ejection port 6 and the combustible gas ejection lower part of the oxygen combustible gas nozzle 5, respectively, to burn and react the molten part at the tip of the metal wire 1. The molten particles are blown toward the workpiece 1 by using the jetting force of oxygen and combustible gas, and the workpiece H is cut by the molten particles and the flame of the oxygen and combustible gas to form a hole J. (See Figure 1).

In the embodiment shown in FIG. 2, the tip of the metal wire 1 is first melted by the arc generator 4 as described above. Oxygen is then jetted out from the oxygen spout 11 of the oxygen nozzle 10 to cause the molten portion at the tip of the metal wire 1 to burn and react, without blowing molten particles forward from the molten portion of the metal wire 1. Further, oxygen and combustible gas are ejected from the oxygen ejection port 13 and the combustible gas ejection port 14 of the oxygen combustible gas nozzle 12, respectively, to cause the molten particles of the metal wire 1 to burn and react, and to release oxygen and the combustible gas. The workpiece H is melted using the jet force of
The melted particles and the flame of oxygen and combustible gas cut and perforate the workpiece 1'' (see Fig. 2).

The metal wire 1, which is consumed by combustion and reaction, is wound onto a reel 2 as shown in the illustrated example, and is unwound automatically or manually, so that it can be continuously fed. Note that the metal wire 1 itself can be made of any suitable material, and its structure may be constructed by twisting a large number of thin metal wires, or any other suitable structure may be used. , 21 is a combustible gas cylinder that supplies flammable gas to the oxygen combustible gas nozzle 5.12, and 22 is a combustible gas cylinder that supplies oxygen to the oxygen nozzle 10. This is an oxygen cylinder that supplies oxygen.

Incidentally, instead of the flammable gas, gasoline, kerosene, etc. may be ejected from the flammable gas ejection lower 14.

Further, as the flammable gas, for example, a slow combustion gas such as propane or butane is used, and this gas is placed at a position appropriately away from the tip of the oxygen combustible gas nozzle 5.
The oxygen combustible gas nozzles 5 and 12 may be burned together with oxygen ejected from the oxygen combustible gas nozzle 13, and the oxygen combustible gas nozzles 5 and 12 may be used continuously for a long time without being damaged by the heat generated by the combustion. In particular, the ejection power of oxygen and combustible gas can be increased or decreased depending on various conditions.

The structure, number, etc. of the oxygen nozzle 10 and the oxygen combustible gas nozzle 5.degree. 12 are not limited to the illustrated example and can be freely set as appropriate. In addition, the arrangement positions of the oxygen nozzle 101, the oxygen combustible gas nozzle 5, 12, the metal wire guide 3, etc. are such that oxygen, combustible gas, molten particles, etc. do not diffuse, and the predetermined position of the workpiece H is fixed. It can be set freely as long as it concentrates the cutting and drilling force on the cutting and drilling locations and can obtain efficient cutting and drilling forces, and is not limited to the illustrated example.

The arc generators 4 may be respectively connected to the metal wire kite 3 as shown in the illustrated example, or may be connected to the reel 2 portions respectively, so that an arc can be reliably generated at the tip portion of the metal wire 1. It is good if there is. It is also possible to increase the arc generation capacity of the arc generator 4 itself so that it can melt a large amount of metal mi, thereby improving its melting ability and increasing its fusing and piercing ability.

Therefore, the arc melts the gold imi, and this metal 1
The molten particles in the molten part of 1 are burned with oxygen and flammable gas to avoid reaction and are blown forward, and the object to be melted 1-1, such as a concrete structure, is fused with the flame of oxygen and combustible gas and the molten particles. , since the perforation was covered, the metal wire 1
The combination of molten particles with a high calorific value generated by the combustion and reaction of Efficiency can be improved. Moreover, concrete 1
- Fusing and drilling of refractory bricks, etc., can be easily carried out.

In addition, unlike powder lances, there is no risk of powder such as iron powder scattering around and having a negative impact on the human body, and there is no risk of explosions caused by backfire in the oxygen or compressed air used to feed the powder. There is no risk of this happening. Furthermore, unlike oxygen lances, there is no risk of the lance misfiring, and extremely safe cutting and drilling operations can be performed.

Moreover, the gold R wire 1 can be reliably and easily ignited by the arc, and the automatic continuous feeding of the metal wire 1 can be easily achieved.

Also, the metal wire 7 is melted by an arc, and the gold Ji1
Blowing oxygen onto the molten part of wire 1, the molten particles are blown forward as they burn and react, and are further blown off forward as they burn and react with oxygen and flammable gas.
Since the object H to be melted, such as a concrete structure, is melted and pierced by the flame of oxygen and combustible gas and the molten particles, the molten particles of gold JffiM1 can be reliably burned and reacted, and this The molten particles can be powerfully blown toward the object H to be welded, further enhancing the fusing and perforating capabilities and helping to shorten the working time.

The metal wire 1 is formed to be meltable by an arc generated by an arc generator 4, and the molten particles of the molten part of the metal 111 are combusted and reacted with oxygen and flammable gas, and are blown forward. Since a fusing and perforating device such as the above is formed, the molten part can be burned and reacted with oxygen and flammable gas, and the molten particles can be fused from the molten part of the metal wire 1 by the jetting force of oxygen and combustible gas. The molten particles and the flame of oxygen and combustible gas can reliably and easily fuse and perforate the workpiece.

It should be noted that it is possible to blow oxygen forward onto the molten part of the metal 1i11, and the molten part is blown away by this oxygen.
According to a device for fusing and perforating concrete structures, etc., which is formed so that the molten particles of the metal wire 1 are combusted and reacted with oxygen and combustible gas and blown forward, the molten part of the metal wire 1 is The molten particles can be combusted and reacted with oxygen and combustible gas, and the molten particles can be blown forward from the molten part of the metal wire 1 with the jet power of this oxygen. At the same time, the molten particles are powerfully blown away toward the workpiece 1-1 by the jetting force of oxygen and combustible gas, and the molten particles and the flame of oxygen and combustible gas blow away the workpiece. 1-1 can be cut and drilled in a short time.

As explained above, according to the present invention, there is no risk of combustion of the metal wire causing a misfire during the work, the ignition is easy, and continuous melt cutting and drilling work can be performed easily for a long time. It further increases fusing cutting and drilling capabilities, helping to improve work efficiency, and is also easy to automate, and has excellent effects such as reliably preventing the occurrence of pollution and sparks. Become.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a schematic diagram of the device, and FIG. 2 is a schematic diagram of the device in another embodiment. DESCRIPTION OF SYMBOLS 1... Metal wire, 2... Reel, 3... Metal wire guide, 4... Arc generator, 5... Oxygen combustible gas nozzle, 6... Oxygen spout, 7... Combustible gas outlet, 10...Oxygen nozzle 11...Oxygen outlet, 12.
...Oxygen combustible gas nozzle, 13...Oxygen jet port, 1
4... Flammable gas outlet, 20... Oxygen cylinder, 21... Flammable gas cylinder,
22...Oxygen cylinder, H...Thing to be melted. 43J i'l Applicant Fire Lance Industry Co., Ltd. Agent Patent attorney Nakamura 1 non-political person procedural amendment yen (voluntary) Gu. , Elementary School 111 Display 1981 'l' 4 yl Application No. 146127 @ 2, Name of Invention Concrete 1 - Method and device for fusing and drilling structures, etc. 3;
Address: Chuo, Edogawa-ku, Tokyo -3-5 Name: Fire Lance Industrial Co., Ltd. Representative: Masao Sugaya 5, Subject of amendment: 6, ? iI'i Masaaki Contents ■ 14 was captured on the street of Attachment Ba J Masaaki Kenzan [Jru 1,
7. Attached Catalog of Ordinances Jll [Specification a I J+ Above Amended Specification 1, Name of Invention Concrete 1 - Method and Apparatus for Melting and Drilling Structures, etc. 2, Claim 1, Metal wire by arc The molten particles of the molten part of the metal wire are combusted with oxygen and combustible gas or high-pressure oxygen, and when the reaction is avoided, they are blown away in the direction of oxygen and combustible gas 1. L 1% wide flame and 1 particle of melted concrete 1-4 toma 1 course? lI
2 Melting 111j It is assumed that cutting and perforating the material is a sign of 1.
This is a method for fusing and drilling structures into concrete 1. 2. Melt the metal wire with an arc, blow oxygen into the molten part of the metal wire, and burn the molten particles that are blown forward while combusting and reacting with oxygen and flammable gas. Concrete products 1 to 41+5, etc., which are characterized by cutting and perforating objects such as concrete structures with flames of oxygen and combustible gas and molten particles by blowing them in the opposite direction at the same time. fusing and drilling methods. 3. Form a metal wire so that it can be melted by an arc generated by an arc generator, and burn the molten particles of the molten part of the metal wire with oxygen and 1'IU gas or high pressure.
When reacted, it is characterized by being blown away (spread) forward by the Jt.
perforation device. 4. Direct oxygen forward to the molten part of the metal wire and form it so that it can be blown.
The molten particles of the exposed metal wire are exposed to oxygen and '71
'Ill! [Claim 3C: Molten concrete 1-4'li structure, etc.] city i
, perforation fittings. 3. Detailed Description of the Invention The present invention is applicable to structures such as reinforcing bars (1) and other buildings, steel frames, etc., refractories such as refractory bricks, rocks, or underwater. The building, rock!i!1
1st place welded 1! l! Concrete 1 for drilling, cutting, and demolishing structures while melting them - a method and apparatus for melting and drilling structures. Conventionally, fusing and drilling work on the workpiece has been carried out using a gas cutter, a powder lance, an oxygen lance, etc.;
(Easy to do and concrete 1~fusing of structures etc./J<
In the case of a powder lance, continuously add powder such as iron powder to 111
Since it is fed to elementary combustion II, there is a problem that some of the powder is scattered around the combustion area. <There was a serious risk of explosion due to the oxygen or compressed air used to feed the powder. However, in the case of an oxygen lance, as soon as the lance wears out, you have to quickly insert the lance into the holder, relight it, and repeat the process, which is troublesome and reduces work efficiency. However, those configured to cause the lance to burn and react with an appropriate flammable gas had the following problems, including the risk of explosion if the lance misfired. Therefore, the present invention has been created to solve the above-mentioned problems. Hereinafter, embodiments of the present invention will be explained with reference to the drawings. line 1
is unwound from the reel 2, and the tip phase t7 of the metal wire 1 is approached via the metal wire blade 3. Then, an arc is generated between the metal tips of the metal wire 1 in the arc generator 4, and the tip of the metal wire 1 is melted. Then, oxygen 1111 is output from the oxygen combustible gas nozzle F) [
16 and combustible gas ejection lower, respectively, to burn and react the molten part at the tip of the metal wire 1, and molten particles from the molten part of the metal wire 1,
The workpiece 1-1 is melted using the jetting force of oxygen and combustible scum.
The weld Fa')+ particles and the flame of oxygen and combustible dregs melt and pierce the object 1 (see Fig. 1). , First, as mentioned above, No.7-
The tip of the metal wire 1 is melted and covered by the oxidation generator 4. Then,
Oxygen is ejected from the oxygen ejection D 11 of the oxygen nozzle 10 to burn and react the molten portion at the tip of the metal wire 1.
The molten particles are blown away from the molten part of the metal wire 1 forward. Further, oxygen and combustible gas are ejected from the oxygen jet port 13 and the combustible gas jet port 14 of the oxygen combustible gas nozzle 12, respectively. ＞&After the molten particles of the metal powder 1 are prevented from burning and reacting, they are blown away toward the workpiece 1-1 using the jetting force of oxygen and combustible gas, and the molten particles are combined with the oxygen and combustible gas. The object to be melted 1'jlJ 1-1 is fused and perforated with the flame of the hot gas. Although not shown, when the tip of the metal wire 1 is melted by the arc generator 4, high-pressure oxygen is ejected to it.
f L/me, burn the molten part at the tip of the metal wire 1 to avoid reaction, and use the jet force of high-pressure oxygen to direct the molten particles from the molten part of the metal wire 1 toward the object 1-1 to be melted. The molten particles can be melted and cut with a high-pressure acid flame and the object to be melted can be pierced.The nozzle for spouting high-pressure oxygen is equipped with a nozzle for high-pressure Fjlf element. This may be used, or the oxygen combustible gas nozzle 5 and the oxygen nozzle 10 may be used as they are. The metal wire 1, which is consumed by combustion and reaction, is wound onto a reel 2 as shown in the figure, and is unwound automatically or manually, so that it can be fed continuously. . The material of the metal wire 1 itself may be any suitable material, and its structure may be composed of a large number of thin gold B powders, or may be made of other materials as appropriate. Can be configured freely. In the figure, 20 is an oxygen cylinder that supplies oxygen to the oxygen combustible gas nozzle r; This is an oxygen cylinder that supplies oxygen to the nozzle 1o.In addition, gasoline, kerosene, etc. can be used instead of flammable gas.
71 gas may be ejected [17,'11]. In addition, as a flammable gas, for example, a slow-burning gas such as propane or butane is used, and this gas is poured into the oxygen outlet 6.13J: The oxygen combustible gas nozzle 5,
12 The tip portion may be made so that it can withstand continuous use for a long time without being damaged. In particular, the ejection power of oxygen and combustible gas can be increased or decreased depending on various conditions. The structure, number, etc. of the oxygen nozzle 10 and the oxygen combustible gas nozzle 5.degree. 12 are not limited to the illustrated example and can be freely set as appropriate. In addition, the arrangement positions of the oxygen nozzle 10, oxygen combustible gas nozzle 5.12, metal wire guide 3, etc. are such that oxygen, MM, combustible gas, molten particles, etc. do not diffuse into the workpiece 1 ( The arc generator 4 is not limited to the illustrated example, and can be set as desired as long as it concentrates on a predetermined melting and drilling location and provides efficient melting and drilling power. They may be connected to the metal wire guides 3 as in the sixth example, or they may be connected to the reel 2, as long as the arc can be reliably generated at the tip of the metal a11. It is also possible to increase the arc generation capacity of the arc generator 4 itself, to melt the metal wire 1 of the seedlings, to improve its melting ability, and to increase the fusing and piercing ability. First, the tip of the metal FAI is melted in an arc, and then oxygen and flammable gas or high-pressure oxygen is released into it, and when the combustion state of the molten part can be maintained sufficiently, the generation of the arc is stopped. 9. PI melting of the metal wire 1 can be promoted in iJ3 by continuously generating an arc, or can be used intermittently. According to the work situation, the metal wire 1 can be freely generated and used according to the work situation.
The molten particles in the 1'HHi+ portion of the metal wire 1 are combusted with oxygen and flammable gas or high-pressure oxygen, and while the reaction is avoided, the molten particles are blown forward, and the molten particles are combined with oxygen and combustible scum or the flame of the high-pressure 11tf element. Since the object to be welded 1-1 of 1-1-1 is made to be perforated by the weld 11, the heat generated by the combustion and reaction of the metal wire 1 is generated by the weld Hg. ! Particles, W element, and flammable gas or high-pressure oxygen flame combine! The cutting and drilling ability of the workpiece 11 during the opening time of J1 is further improved, and the work efficiency can be improved. It is easy to cut, cut, and drill firebricks, etc. By burning the metal wire 1, there is no risk of powder such as iron powder being scattered around the surroundings and having a negative impact on the human body, as in a powder lance, and oxygen or Since compressed air and the like are not required, there is no risk of explosion caused by backfire. Furthermore, since the gold rF wire 1 is melted by the arc, there is no risk of the lance misfiring unlike an oxygen lance. Even if there is a misfire, it can be quickly re-burned by the arc, making cutting and drilling operations extremely safe. Furthermore, since the metal wire 1 can be easily and reliably ignited by an arc, automatic continuous feeding of the metal wire 1 can be easily achieved. In particular, when molten particles are combusted, reacted, and blown forward using only high-pressure oxygen, and the workpiece 1 is cut and drilled using the flame of high-pressure oxygen and the molten particles, the workpiece is Can be reliably cut and drilled. Furthermore, the structure of the nozzle itself becomes simple and no flammable gas is required, making it extremely economical. In addition, the metal FA1 is melted by an arc, and this metal #
Blowing oxygen into the molten part of Q1 (), the molten L (11 particles) is blown and blown forward while burning and reacting.
To avoid combustion and reaction with oxygen and OJ flammable gases, blow it forward and use the flame and molten particles of oxygen and combustible gases to burn the object 1-1, such as the structure.
, a cut, perforation j: sea urchin C1 gold bend line 1 melt i
In order to reliably burn the H1+ particles and avoid the reaction, the molten R1! particles can be strongly blown (=t I) toward the target V and lY cutting material 11. The drilling capacity is further enhanced, which helps to shorten the working time.The arc η゛α strand 1 generated by the arc generator 4 is formed to be meltable, and the molten portion of the metal I!1 is
Powder particles, oxygen and combustible gas or high-pressure oxygen are used to burn the concrete, avoiding reactions and blowing the concrete 1 forward.
~ Since we have formed a fusing and perforating device for structures, etc., it is possible to burn and react the molten part with oxygen and flammable gas or high-pressure oxygen, and also to cut the metal wire 1 with the jetting force of oxygen and flammable gas or high-pressure oxygen. The molten particles are blown away from the molten part of the workpiece H, and the workpiece (H) can be easily melted and perforated using the molten particles and the flame of oxygen and combustible gas or high-pressure oxygen. In addition, it is possible to blow oxygen forward onto the molten part of the metal wire 1, and the molten particles of the metal a1 that are blown away by this oxygen are treated with oxygen, combustible gas, or high pressure. Concrete is formed into a shape that can be combusted and reacted with oxygen and blown forward. At the same time, the jet power of this oxygen blows the molten particles forward from the molten part of the gold FA wire 1.
tl-, and furthermore, this 18 melt particle can be 1! ! The molten particles can be combusted and reacted with combustible gas or high pressure oxygen, and the molten particles can be powerfully blown toward the material to be melted using the jet power of oxygen and combustible gas or high pressure oxygen. J that can fuse and perforate the workpiece 1-1 in a short time with oxygen and flammable gas or high pressure oxygen flame.
：It becomes a snarl. As explained above, according to the present invention, there is no risk of misfire during the combustion of metal powder, and it is easy to ignite the metal powder, and furthermore, 11. Continuous for 'j' k '11> FI+
In addition to making drilling work easier, it further increases fusing and drilling performance1], helping to improve work efficiency, and is easy to automate, reliably preventing the occurrence of pollution and flashing accidents. A monkey, etc., makes a roar that has the effect of sitting down. 4. Brief Description of the Drawings 11 The drawings show an embodiment of the present invention, and FIG. 1 is a schematic diagram of the device, and FIG. 2 is a schematic diagram of the device in another embodiment. DESCRIPTION OF SYMBOLS 1... Metal wire, 2... Reel, 3... Metal wire guide, 4... Arc generator, 5... Acid-based combustible waste nozzle, 6... Oxygen spout, 7...・Flammable gas IW output C1. 10... Oxygen nozzle 11... M element 10 output 1, 12
... Acid-based combustible waste nozzle, 13... Oxygen spout,
14... Flammable gas blowout (ko), 20... Oxygen cylinder, 21... Combustible waste cylinder, 22... M raw cylinder, 1-1... Object to be melted.

Claims (1)

[Claims] 1. A metal wire is melted by an arc, and the molten particles in the melted part of the metal wire are combusted and reacted with oxygen and flammable gas, and are blown forward to form a flame of oxygen and combustible gas. A method for cutting and drilling concrete structures, etc., characterized by cutting and drilling a concrete-like material to be cut using molten particles. 2. The metal wire is melted by an arc, oxygen is blown onto the molten part of the metal wire, and the molten particles are blown forward as they burn and react. 1. A method for cutting and drilling concrete la 1M objects, which is characterized by cutting and drilling objects such as concrete structures using a flame of oxygen and combustible gas and molten particles. 3. A metal wire is formed so that it can be melted by an arc generated by an arc generator, and the molten particles in the molten part of the metal wire are combusted and reacted with oxygen and flammable gas, and the metal wire is formed so that it can be blown forward. A cutting and drilling device for concrete, etc., characterized by the following: 4. It is possible to blow oxygen forward onto the molten part of the metal wire, and the molten lit particles of the metal wire that are blown away by this oxygen are combusted and reacted with oxygen and flammable gas, and are also directed forward. Cutting a concrete structure, etc., according to claim 3, which is formed so as to be blown away;
perforation device.