CN217798933U - Anti-backfire oxygen burning pipe holder and oxygen burning device - Google Patents

Abstract

The utility model provides an anti-backfire oxygen-burning pipe holder and oxygen-burning device relates to the casting technology field, anti-backfire oxygen-burning pipe holder include that body, protection handheld structure and symmetry locate the oxygen pipe locking structure of both sides about the body, oxygen pipe locking structure are suitable for the locking or loosen and insert this internal oxygen pipe, and protection handheld structure locates on the body, just protection handheld structure for oxygen pipe locking structure keeps away from the link setting of body and oxygen pipe, anti-backfire oxygen-burning pipe holder pass through oxygen pipe locking structure and realize the two side locking to the oxygen pipe, improved the oxygen pipe acutely shake the gas leakage phenomenon that leads to after logical oxygen, protection handheld structure is suitable for and controls anti-backfire oxygen-burning pipe, burn operating personnel when avoiding backfire phenomenon to take place, effectively reduce incident such as equipment damage and personnel scald, easy and simple to handle, the security obtains the guarantee.

Description

Anti-backfire oxygen burning pipe holder and oxygen burning device

Technical Field

The utility model relates to a casting technical field particularly, relates to an anti-backfire oxygen burning pipe holder and oxygen burning device.

Background

Continuous casting (continuous casting) is a common casting method, molten steel is poured into a crystallizer through a ladle for casting, so that the metal yield and the casting blank quality can be greatly improved, and the method is widely applied to modern industrial production. However, in the continuous casting process, residual molten steel exists in the long nozzle when each furnace of steel ladle stops casting, cold steel is formed after cooling and solidification, a steel flow channel is easy to block, so that the molten steel turns out to cause safety accidents, and meanwhile, the condition that the steel ladle does not open automatically can occur in the continuous casting process.

The oxygen burning device generally comprises a leather hose, an oxygen pipe and a holder, wherein the oxygen pipe is arranged in the holder during operation, oxygen is used for igniting the oxygen pipe for operation, and the oxygen is blown out from the leather hose. The current oxygen device that burns is at the during operation, after the holder installation oxygen pipe and the oxygen pipe clearance big, produce the problem of junction gas leakage easily, the holder is fixed for the unilateral to the oxygen pipe, leads to oxygen gas back, and the oxygen pipe can produce violent rocking, makes the junction gas leakage problem appear, leads to oxygen pipe, holder and leather hose to appear tempering phenomenon, leads to equipment damage and emergence personnel to scald incident such as easily, has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problem that the existing oxygen burning device has serious tempering phenomenon and great potential safety hazard.

In order to solve the problem, the utility model provides an oxygen pipe holder is burnt in anti-backfire, locate including body, protection handheld structure and symmetry the oxygen pipe locking structure of both sides about the body, oxygen pipe locking structure is suitable for the locking or loosens and inserts this internal oxygen pipe, protection handheld structure locates on the body, just protection handheld structure for oxygen pipe locking structure keeps away from the link setting of body and oxygen pipe.

Optionally, the protection handheld structure includes a protection portion and a handheld portion, the protection portion is annularly disposed outside the body, and the handheld portion is far away from the oxygen tube locking structure with respect to the protection portion.

Optionally, the protection part is a circular plate sleeved outside the body, and the diameter range of the circular plate is 120-180mm.

Optionally, a protrusion adapted to control the rotation direction of the body is disposed on the handheld portion.

Optionally, the body includes leather hose connecting portion and oxygen hose connecting portion, oxygen hose locking structure locates on the oxygen hose connecting portion, the diameter of leather hose connecting portion is greater than the diameter of oxygen hose connecting portion, and part oxygen hose connecting portion are suitable for inserting in the leather hose connecting portion.

Optionally, the oxygen tube locking structure includes a fixing portion and a locking portion, the fixing portion is fixedly disposed on the outer surface of the body, and the locking portion is matched with the fixing portion and is adapted to be inserted into the fixing portion to lock or release the oxygen tube.

Optionally, the end of the locking portion remote from the fixing portion is provided with a handle.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model provides an oxygen pipe holder is burnt in anti-backfire includes the body, the oxygen pipe locking structure of both sides about the body is located to protection handheld structure and symmetry, pipe locking structure inserts and respectively with the upper and lower both sides outer wall contact who inserts the inside oxygen pipe of body from the upper and lower both sides of body, it compresses tightly oxygen pipe from upper and lower two directions to exert pressure to it, realize the locking of oxygen pipe or loosen, it is fixed that two sides have been changed into from original unilateral with the fixed mode of holder to oxygen pipe, the gas leakage phenomenon that the oxygen pipe acutely rocks and leads to after leading to oxygen has been improved, the oxygen pipe has effectively been avoided, the tempering phenomenon that holder and leather hose appear. In addition, the connection setting that body and oxygen pipe were kept away from for oxygen pipe locking structure to protection handheld structure is suitable for to hold the anti-backfire oxygen pipe that burns, burns operating personnel when avoiding the phenomenon of tempering to take place, has promoted safeguard function greatly, the utility model provides an anti-backfire oxygen pipe holder can effectively reduce equipment damage and incident such as personnel scald, and is easy and simple to handle, and the security is ensured.

The utility model discloses another aim at is one kind burns the oxygen device, including above-mentioned back fire prevention oxygen pipe holder, oxygen pipe, leather hose, air supply and connecting piece, the one end of back fire prevention oxygen pipe holder with the oxygen union coupling, the other end of back fire prevention oxygen pipe holder passes through the connecting piece with the one end of leather hose is connected, the air supply passes through the connecting piece with the other end of leather hose is connected and is suitable for and provides oxygen.

Optionally, the connection is a spherical sealing joint.

Optionally, the inner wall of the leather hose is provided with a double-layer steel wire mesh.

Burn oxygen device to prior art's advantage with above-mentioned back fire prevention burn oxygen pipe holder the same, no longer give consideration to here.

Drawings

Fig. 1 is a schematic structural view of an anti-backfire oxygen-burning pipe holder provided by the embodiment of the utility model.

Description of reference numerals:

1-a body; 11-a leather hose connection; 12-an oxygen tube connection; 2-protecting the hand-held structure; 21-a guard; 22-a hand-held portion; 3-oxygen tube locking structure; 31-a stationary part; 32-a locking portion; 33-handle.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be understood that the forward direction of "X" in the drawings represents the right direction, the reverse direction of "X" represents the left direction, the forward direction of "Z" represents the lower direction, the reverse direction of "Z" represents the upper direction, and the directions or positional relationships indicated by the terms "X" and "Z" are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "utility model" merely for convenience and without intending to voluntarily limit the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed.

Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1, the anti-backfire oxygen-burning tube holder provided in this embodiment includes a body 1, a protection handheld structure 2, and oxygen tube locking structures 3 symmetrically disposed on upper and lower sides of the body 1, where the oxygen tube locking structures 3 are adapted to lock or release an oxygen tube inserted into the body 1, the protection handheld structure 2 is disposed on the body 1, and the protection handheld structure 2 is disposed far away from a connection end between the body 1 and the oxygen tube with respect to the oxygen tube locking structures 3.

Specifically, the body 1 is internally provided with an oxygen channel, one end of the oxygen channel is connected with the oxygen tube, the other end of the oxygen channel is connected with the leather hose, and the oxygen tube locking structure 3 is arranged on one side close to the oxygen tube connecting end of the body 1, symmetrically arranged on the upper side and the lower side of the body 1 and suitable for respectively clamping the oxygen tube from the upper side and the lower side. It is worth noting that since the back fire position of the oxygen tube usually occurs at the connection position of the oxygen tube and the holder, the protection handheld structure 2 is arranged far away from the connection end of the body 1 and the oxygen tube relative to the oxygen tube locking structure 3, so that when the back fire phenomenon occurs at the connection end of the anti-back fire oxygen tube holder and the solar switch, the operator can be prevented from being burned, and the operator can be protected.

The anti-backfire oxygen burning tube holder provided by the embodiment comprises a body, the oxygen tube locking structure of both sides about the body is located to protection handheld structure and symmetry, tube locking structure inserts from the upper and lower both sides of body and contacts with the upper and lower both sides outer wall that inserts the inside oxygen pipe of body respectively, exert pressure to it and compress tightly the oxygen pipe from upper and lower two directions, realize the locking of oxygen pipe or loosen, the fixed mode that will hold the holder to the oxygen pipe has changed into two fixed sides from original unilateral is fixed, the gas leakage phenomenon that the acutely rocks the result in after leading to oxygen pipe is improved, effectively avoided the oxygen pipe, the tempering phenomenon that holder and leather hose appear, the protection handheld structure keeps away from the link setting of body and oxygen pipe for oxygen pipe locking structure, be suitable for holding anti-backfire oxygen burning tube, burn operating personnel when avoiding tempering phenomenon to take place, the safeguard function has greatly been promoted, the utility model provides an anti-backfire oxygen burning tube holder can effectively reduce safety accidents such as equipment damages and personnel scald, and is easy and simple to handle, and high safety is obtained.

Specifically, the phenomenon that oxygen is tempered in the existing anti-tempering oxygen pipe holder may occur in the using process, so that personnel are scalded and safety accidents are caused, therefore, the protective handheld structure 2 in the embodiment includes a protective portion 21 and a handheld portion 22, the protective portion 21 is annularly arranged outside the body 1, and flame can be blocked to protect operators when the tempering phenomenon occurs.

In addition, in the present embodiment, the protection part 21 may be a plate shape having a certain area and a cross-sectional shape, the hand-held part 22 is disposed apart from the oxygen tube locking structure 3 with respect to the protection part 21 and is suitable for an operator to hold, and the protection part 21 and the hand-held part 22 are disposed according to the above arrangement, so that the operator is located behind the protection part 21 when in use, thereby effectively protecting the operator.

In some embodiments, the protection part 21 is a circular plate sleeved outside the body 1, and the diameter of the circular plate ranges from 120mm to 180mm.

In this embodiment, the protection part 21 is made to be circular, which is beneficial to fully blocking flame, the diameter range of the circular plate is 120-180mm, which can fully protect the operator and facilitate the operation, if the diameter is too small, the protection part 21 cannot fully block flame, if the diameter is too large, the weight of the whole anti-backfire oxygen burning tube holder is too large and the center of gravity is deviated, which is not beneficial to the actual use of the operator, therefore, the protection part 21 is preferably made to be the above specification, so that the anti-backfire oxygen burning tube holder is controlled to be at a proper weight on the premise of ensuring the protection performance, and the holding is convenient. In some specific embodiments, the protection part 21 is arranged at a position 120mm away from the oxygen tube holder near the end part of the oxygen tube at the position of the anti-backfire oxygen tube holder, and the diameter of the protection part 21 is preferably 150mm, and the thickness of the protection part is preferably 3mm, so as to achieve the best use effect.

In some specific embodiments, the handle 22 is provided with a protrusion adapted to control the rotation direction of the body 1.

Specifically, in actual operation, need control the mouth of pipe direction of leather hose so that carry out diversified sweeping to the ladle long nozzle, when operating personnel handheld anti-backfire oxygen tube holder, because inside air current intensity is great, can appear driving whole holder and maintain the phenomenon that specific direction is difficult to control, and because the holder body is the cylinder tubulose, easily take place to slide when holding, certain difficulty appears when making operating personnel control the direction of sweeping of leather hose, therefore, be equipped with the arch that is suitable for control body 1 direction of rotation on handheld portion 22, when using, the staff holds on handheld portion 22, through the above-mentioned protruding friction of increasing between and the hand, be convenient for operating personnel radial rotation holder and then control the direction of sweeping of leather hose, increase anti-backfire oxygen tube holder's practicality and maneuverability, prevent simultaneously that the holder from taking off hand and arouse the incident. In some specific embodiments, the holding portion 22 is two tubular objects symmetrically disposed on the outer surface of the body 1, the central axis of the tubular object is parallel to the central axis of the body 1, the diameter of the tubular object is smaller than that of the body 1, when in use, an operator holds the holding portion 22, because the tubular objects are symmetrically disposed on two sides of the body 1, an originally cylindrical holding position is changed to be flat, and when the operator holds the holding portion, the operator can conveniently apply force to turn the holding portion to a proper angle to adjust the purging direction of the leather hose. Simple structure, the tubulose easily obtains, can be according to the suitable length of actual demand intercepting, utilizes modes such as welding to fix it at body 1 surface. In some specific embodiments, the tube is disposed on a side of the protection portion 21 away from the oxygen tube locking structure 3, and the tube is a stainless steel tube with a diameter of 10 × 1.5mm and a length of 100mm, so as to facilitate handling and control of the holder during use.

In some specific embodiments, the body 1 comprises a leather hose connecting part 11 and an oxygen hose connecting part 12, the oxygen hose locking structure 3 is disposed on the oxygen hose connecting part 12, the diameter of the leather hose connecting part 11 is larger than that of the oxygen hose connecting part 12, and a portion of the oxygen hose connecting part 12 is adapted to be inserted into the leather hose connecting part 11.

Herein, the diameter of leather hose connecting portion 11 is greater than the diameter of oxygen hose connecting portion 12 can play the effect of carrying out the pressure boost to oxygen, and oxygen is earlier through the great oxygen hose connecting portion 12 of diameter, and the effect of increase pressure can be realized to the less leather hose connecting portion 11 of rethread diameter to this reaches more effective clearance and drainage effect.

In some specific embodiments, the leather hose connecting portion 11 is a stainless steel seamless steel tube with a length of 200mm and a diameter of 32 × 4mm, the oxygen hose connecting portion 12 is a stainless steel seamless steel tube with a length of 740mm and a diameter of 25 × 4mm, the oxygen hose connecting portion 12 is a stainless steel seamless steel tube with a length of 40mm inserted into the leather hose connecting portion 11, the total length of the backfire oxygen hose holder body is 900mm, the leather hose connecting portion 11 is a short thick steel tube with a larger diameter, the oxygen hose connecting portion 12 is a long steel tube with a smaller diameter, oxygen can be sufficiently pressurized, meanwhile, on the premise that the pressurization effect is guaranteed, the weight of the backfire oxygen hose holder is reduced, the total length of the holder is set to 900mm, wherein the oxygen hose connecting portion 12 occupies 700mm, the leather hose connecting portion 11 occupies 200mm, the oxygen hose connecting portion is convenient for an operator to hold, the oxygen hose connecting portion is convenient for actual use, if the length is long, a sufficient pressurization effect cannot be achieved, meanwhile, the total length of the oxygen hose connecting portion is too close to the operator, the oxygen hose connecting portion 12 occupies 700mm, the oxygen hose connecting portion is inconvenient for the oxygen hose connecting portion, the oxygen hose connecting portion is convenient for the operator to handle, the oxygen hose is convenient for the effective use, the oxygen hose drainage efficiency is increased, and the drainage efficiency is increased.

In some specific embodiments, the oxygen tube locking structure 3 includes a fixing portion 31 and a locking portion 32, the fixing portion 31 is fixed on the outer surface of the body 1, for example, the connection is realized by welding, the locking portion 32 is matched with the fixing portion 31 and is suitable for being inserted into the fixing portion 31 to lock or loosen the oxygen tube, corresponding mounting holes can be formed in the fixing portion 31 and the body 1, the locking portion 32 is suitable for being inserted into the mounting holes and can move up and down in the mounting holes, the oxygen tube can be fixed at a certain position during movement without slipping off, so that the oxygen tube locking function is realized, in operation, the oxygen tube is inserted into the body 1, the extending length of the oxygen tube locking structure 3 is greater than the distance from the end of the oxygen tube fixing portion 11 where the oxygen tube is mounted, at the moment, the two locking portions 32 are respectively close to the oxygen tube from the upper and lower directions until the two locking portions are in contact with the outer walls of the upper and lower sides of the oxygen tube and apply certain pressure to the oxygen tube, the oxygen tube is clamped, and the oxygen tube is fixed. More, the mounting hole on the fixing part 31 is provided with an internal thread, the locking part 32 is provided with an external thread matched with the internal thread, the locking part 32 is connected with the fixing part 31 through a thread, and the locking part 32 can rotate up and down in the second mounting hole 211 to realize the clamping and locking of the oxygen tube. The oxygen tube fixing device is simple to operate due to the fact that threaded connection is used, the fixing portion 31 and the locking portion 32 can directly use the existing fixing portion and locking portion, obtaining is facilitated, meanwhile firm clamping of the oxygen tube can be achieved, and connection is reliable. In some specific embodiments, a hole is formed on both sides of a position 50mm away from one end of the oxygen tube, and a fixing portion of M10 is welded thereon as a fixing portion 31, and a locking portion of M10 × 30 is used as a locking portion 32, so that the fixing portion 31 and the locking portion 32 of the above specifications can firmly clamp the oxygen tube, and the whole back fire oxygen tube holder is controlled to have a suitable weight for easy holding, if the oxygen tube locking device 3 is too small in size, the oxygen tube cannot firmly clamp, and the oxygen tube is easily loosened to cause a safety accident, and if the oxygen tube locking device 3 is too large in size, the whole back fire oxygen tube holder is too heavy and has a deviated center of gravity, which is not beneficial to the practical use of an operator.

In some specific embodiments, the end of the locking portion 32 away from the fixing portion 31 is provided with a handle 33. Therefore, the handle can be conveniently held by a worker to control the vertical displacement of the locking part 32, and meanwhile, when the holder is used, the handle can be held, so that the phenomenon that the handle falls off due to too large oxygen airflow is prevented, safety accidents are prevented, and the practicability and the safety of the anti-backfire oxygen burning tube holder are improved.

In this embodiment, the handle can select suitable shape according to actual conditions and operating personnel demand, in some specific embodiments, selects T type handle, and above-mentioned T type handle cover is located locking portion 32 on with it fixed connection, and the head of T type handle is held to operating personnel hand in the during operation, is convenient for operate and borrows the power.

The embodiment provides an oxygen device burns, include as above-mentioned anti-backfire oxygen tube holder, oxygen pipe, leather hose, air supply and connecting piece, the one end and the oxygen union coupling of anti-backfire oxygen tube holder, the other end passes through the connecting piece to be connected with the one end of leather hose, and the air supply passes through the connecting piece to be connected with the other end of leather hose and is suitable for providing oxygen.

Specifically, one end of the oxygen tube is connected with one end of the anti-backfire oxygen tube holder and locked by the oxygen tube locking structure 3, and the leather tube is connected with the other end of the anti-backfire oxygen tube holder by a connecting piece. When the device is used, an air source is opened, oxygen sequentially passes through the rubber tube, the anti-backfire oxygen burning tube holder and the oxygen tube, and is blown out from an oxygen tube opening, so that cold steel residues at a long water opening of a steel ladle are swept and cleaned. When the ladle is not opened, the oxygen pipe is ignited by oxygen at high temperature provided by high-temperature molten steel in the ladle, oxygen is burnt for drainage, and ladle casting drainage operation is realized.

In some specific embodiments, the connection is a spherical sealing joint.

Traditional oxygen pipe holder is connected the leather hose and is adopted iron wire stranded bundle mode often fixed, at the in-process of clearance cold steel or ladle drainage, when the increase of oxygen use amount, because inside air current becomes fast and produces stronger impact force, the easy slippage in leather hose and oxygen pipe holder connection position causes the condition that the leather hose flies in disorder in the twinkling of an eye, when oxygen gas leakage condition appears in leather hose department simultaneously, easily takes place oxygen tempering phenomenon and leads to personnel to scald. In this embodiment, adopt spherical sealing joint to realize being connected of oxygen pipe holder and leather hose, preferred G3/4 spherical sealing welded joint has increased the leakproofness between leather hose and the anti-backfire oxygen pipe holder, prevents to lead to the leather hose to throw off because oxygen pressure increases in the use, and then hits operating personnel, effectively prevents simultaneously that the joint position from appearing leaking gas and leading to appearing the tempering accident. Wherein, the preferred sphere female connection mode that adopts is equipped with the internal thread with the sealed welded joint screw thread assorted of sphere at the leather hose inner wall, has promoted the convenience that the leather hose was changed.

In some specific embodiments, the inner wall of the leather pipe is provided with a double-layer steel wire mesh.

The traditional continuous casting leather pipe is a common leather pipe, is generally an armored cloth (air) rubber pipe, and is easy to be scalded by high-temperature molten steel to cause air leakage. The leather hose inner wall of this embodiment is equipped with double-deck wire net, for the special leather hose of double-deck wire net in-band screw thread, has increased the intensity of itself and the high temperature resistant intensity of leather hose, has prevented the leather hose because the steel flower splashes and causes the leather hose gas leakage to damage in the use, has increased the life of leather hose, has effectively controlled the oxygen tempering incident that personnel scald accident and leather hose gas leakage in the use caused.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the disclosure.

Claims (10)

1. The utility model provides an oxygen pipe holder is burnt in anti-backfire, its characterized in that includes body (1), protection handheld structure (2) and symmetry and locates oxygen pipe locking structure (3) of both sides about body (1), oxygen pipe locking structure (3) are suitable for the locking or loosen and insert oxygen pipe in body (1), protection handheld structure (2) are located on body (1), just protection handheld structure (2) for oxygen pipe locking structure (3) are kept away from the link setting of body (1) and oxygen pipe.

2. The back fire prevention oxygen tube holder as claimed in claim 1, wherein the protective hand-held structure (2) comprises a protective part (21) and a hand-held part (22), the protective part (21) is annularly arranged outside the body (1), and the hand-held part (22) is arranged away from the oxygen tube locking structure (3) relative to the protective part (21).

3. The holder for the back fire proof oxygen tube as claimed in claim 2, wherein the protection part (21) is a circular plate sleeved outside the body (1), and the diameter of the circular plate is in the range of 120-180mm.

4. The anti-backfire oxygen tube holder according to claim 2, wherein the hand-held part (22) is provided with a projection adapted to control the rotating direction of the body (1).

5. The anti-backfire oxygen tube holder as claimed in claim 1, wherein the body (1) comprises a leather tube connecting part (11) and an oxygen tube connecting part (12), the oxygen tube locking structure (3) is provided on the oxygen tube connecting part (12), the diameter of the leather tube connecting part (11) is larger than that of the oxygen tube connecting part (12), and a part of the oxygen tube connecting part (12) is adapted to be inserted into the leather tube connecting part (11).

6. The back fire prevention oxygen tube holder as claimed in claim 1, wherein the oxygen tube locking structure (3) comprises a fixing portion (31) and a locking portion (32), the fixing portion (31) is fixedly provided on the outer surface of the body (1), and the locking portion (32) is matched with the fixing portion (31) and adapted to be inserted into the fixing portion (31) to lock or release the oxygen tube.

7. The back fire prevention oxygen tube holder as claimed in claim 6, wherein the locking part (32) is provided with a handle (33) at an end thereof away from the fixing part (31).

8. A device for burning oxygen, comprising the anti-backfire oxygen-burning tube holder as claimed in any one of claims 1 to 7, an oxygen tube, a leather tube, a gas source and a connecting member, wherein one end of the anti-backfire oxygen-burning tube holder is connected to the oxygen tube, the other end of the anti-backfire oxygen-burning tube holder is connected to one end of the leather tube through the connecting member, and the gas source is connected to the other end of the leather tube through the connecting member and is adapted to supply oxygen.

9. The oxygen combustion device as claimed in claim 8, wherein the connecting piece is a spherical sealing joint.

10. The oxygen combustion device as claimed in claim 8, wherein the inner wall of the leather hose is provided with a double-layer steel wire mesh.

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