CN103335331A

CN103335331A - Firing gun of continuous casting cutting gun

Info

Publication number: CN103335331A
Application number: CN2013103086137A
Authority: CN
Inventors: 陈寅明
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-22
Filing date: 2013-07-22
Publication date: 2013-10-02
Anticipated expiration: 2033-07-22
Also published as: CN103335331B

Abstract

The invention discloses a firing gun of a continuous casting cutting gun, wherein the firing gun is reasonable in structure, high in firing success rate and little in air consumption. The firing gun comprises a composite discharge electrode composed of a current-conducting rod and a ceramic tube, a polyvinyl chloride fiberglass tube and an asbestos sleeve which are sleeved on the current-conducting rod, wherein an inner sleeve and an outer sleeve are sleeved on the composite discharge electrode; the part, out of one end of the inner sleeve and/or outer sleeve, of the current-conducting rod of the composite discharge electrode forms a discharge end; the inner sleeve or the outer sleeve is internally provided with a gas pipe; the end surface of one end of the outer sleeve, corresponding to the discharge end of the composite discharge electrode, is provided with gas ejection holes; and a gun body, corresponding to the discharge end, is provided with a loop electrode.

Description

A kind of burning torch of continuous casting burning torch

Technical field

The present invention relates to a kind of steel-making continuous casting cutter sweep, relate in particular to a kind of burning torch of continuous casting burning torch.

Background technology

In the steel-making continuous casting cutting, what adopt usually is the combustion gas cutting, because the particularity that the steel-making continuous casting cutting is produced, the cutting of steel is intermittence and noncontinuity, and cutting gun can not be followed intermittent igniting and flame-out in batch process, the one, and working time and the intermittent time of igniting cutting are all very short, and cutting gun has little time following intermittent igniting and flame-out, the 2nd, even cutting gun has such sensitivity, the waste of its combustion gas also is very surprising; The rate of lighting is low excessively because general electronic ignition rifle discharge is struck sparks for what is more important, can't realize normal burning torch igniting, all the time, steel industry attempts to use the high-voltage pulse sparking mode to be applied to the automatic igniting cutting that burning torch is realized burning torch, but subject matter one that run into and insurmountable is burning torch and burning torch all to be in the extra high high temperature billet steel environment, the related device of burning torch is difficult to adapt to this hot environment, the 2nd, because the steam that the steel billet cutting environment exists a large amount of cooling waters to produce, steam is attached with the operate as normal that a large amount of steam has a strong impact on the relevant sparking system of burning torch again at the not cold burning torch of heat, and burning torch electric leakage Insulation Problems is difficult to solve; Thereby burning torch can't operate as normal, the success rate of igniting is only less than 75%, such burning torch is that the igniting that can't satisfy the steel-making continuous casting cutting gun requires, therefore up to the present, also do not have really to realize using burning torch to carry out the reliable cutting of igniting automatically of high temperature billet steel continuous casting cutting gun.

Summary of the invention

The objective of the invention is the deficiency at the prior art existence, a kind of burning torch of continuous casting burning torch is provided.This burning torch is rational in infrastructure, stable performance, and reliable operation, the ignition success rate height, air consumption is minimum.

Technical scheme of the present invention comprises the sparking electrode of being located in the rifle body that is connected with corresponding priming supply, described sparking electrode is one to comprise contact rod, and be sheathed on earthenware on the contact rod successively, the compound sparking electrode of Huang Laguan and asbestos sleeve, be arranged with inner sleeve on the described compound sparking electrode, the inner sleeve outside is arranged with outer tube, the contact rod of compound sparking electrode grows in the part of an end of interior and/or outer tube and constitutes discharge end, be provided with Gas Pipe in inner sleeve or the outer tube, in and/or offer combustion gas squit hole with described Gas Pipe UNICOM corresponding to the discharge end of this compound sparking electrode on the corresponding end end face of outer tube, be provided with a loop electrode corresponding to this discharge end on the described rifle body.

Described loop electrode by be connected in described in and/or a return wire on the corresponding end outer face of outer tube and interior or outer tube thereof constitute.

In described and/or outer tube be connected with a fan housing corresponding to this discharge end by the discharge end of compound sparking electrode.

Be evenly equipped with some benefit air regulator mouths around described fan housing perisporium.

Described fan housing is a conical pipe fan housing.

Described fan housing constitutes the return wire of the loop electrode of compound sparking electrode.

Described inside and outside sleeve pipe is respectively copper pipe or stainless steel tube.

Be provided with corresponding water leg between the inside and outside sleeve pipe of described rifle body.

Described compound sparking electrode by corresponding ceramic swivel nut be fixedly connected on described in and/outer tube on, described contact rod is a tungsten bar.

Described priming supply is a high-voltage pulse power source, and described compound sparking electrode is one to be connected in the high pressure pulse discharge electrode of this high-voltage pulse power source.

The burning torch of continuous casting burning torch of the present invention is not only simple and reasonable for structure, be easy to make, it can obtain more powerful discharge pulse with lower relatively high-voltage pulse power source power, can adapt to high temperature billet steel continuous casting cutting environment especially, under high temperature and high humidity environment, can guarantee to stablize, reliably, operate as normal, very little combustion gas can guarantee that igniting is in time reliable, and tolerance consumes low, reaches 99. 99% through the on-the-spot test ignition success rate.

Description of drawings

Fig. 1 is burning torch one example structure schematic diagram of the present invention; Fig. 2 is another embodiment of the present invention structural representation.

The specific embodiment

Now also the present invention will be further described by reference to the accompanying drawings by embodiment.As shown in Figure 1, the burning torch rifle body 12 of present embodiment comprises inside and outside

sleeve pipe

5 and 6, the high pressure pulse discharge electrode outside being located at, in the

inner sleeve

6 and 5 etc.; The high pressure pulse discharge electrode comprises that its two ends grow respectively in the tungsten bar 1 at rifle body 12 two ends, be arranged with one deck earthenware 2 on the tungsten bar 1, be arranged with the yellow cured pipe 3 of one deck on the earthenware 2, be arranged with one deck asbestos sleeve 4 on the yellow cured pipe 3, by tungsten bar 1, earthenware 2, the high pressure pulse discharge electrode that yellow cured pipe 3 and asbestos sleeve 4 constitute is fixed on inner sleeve 5 and outer tube 6 two ends by ceramic swivel nut 11 from its two ends, space between inner sleeve 5 and the outer tube 6 constitutes water leg, implement cooling by 13 pairs of rifle bodies of water leg, to guarantee that each insulating element has better insulating properties in the rifle body, the water inlet pipe and water outlet pipe 7 external feed pipes of water leg 13 by being located at the relative both sides of outer tube.

Growing in rifle body 12(or internal and external casing) end of the tungsten bar 1 of high pressure pulse discharge electrode on the corresponding end end face constitutes its discharge end 1a, loop electrode 10 is by inner sleeve 5 and be connected on inner sleeve 5 end faces by discharge end 1a one end, the return wire 10a corresponding with discharge end 1a constitute, tungsten bar 1 and loop electrode 10 respectively from the other end of rifle body 12 be connected in the voltage output end of high-voltage pulse power source and zero line () hold; In or

outer tube

5 or 6 by the end end faces of discharge end 1a are provided with corresponding with this discharge end 1a, with the combustion gas squit hole 8 of Gas Pipe 9 UNICOMs, the igniting combustion gas inserts from the other end of Gas Pipe 9.

Leaning on the end of discharge end 1a of outer tube 6 is connected with the conical pipe fan housing 15 corresponding with the discharge end 1a of high pressure pulse discharge electrode, the space constitutes the water leg 13 of rifle body 12 between the inside and

outside sleeve pipe

5,6, water leg 13 two inlet tube and outlet tubes 7 of the relative both sides by being located at rifle body 12 1 ends respectively forms the water cooling loops, for the rifle body that is under the hot operation state is implemented necessary cooling, inlet tube and outlet tube 7 is inserted into 1/3rd or 2/3rds places of water leg 13 degree of depth, to obtain good relatively water circulating effect; Inside and

outside sleeve pipe

5,6 is respectively copper pipe.

During work, the high-voltage pulse of high-voltage pulse power source is from the electrion sparking very strong with the return wire 10a formation of discharge loop electrode of the discharge end 1a of tungsten bar 1 output back, with the Gas Pipe 9 inputs input of the end by rifle body 12, outside combustion gas ejiction opening 8, spray combustion gas from the other end of Gas Pipe 9 and light, finish the igniting of burning torch, be the igniting of continuous casting burning torch by burning torch again.

Another embodiment of the present invention as shown in Figure 2, what be connected in outer tube 6 mends air regulator mouth 14 by evenly being interval with 3-6 around its perisporium on the conical pipe fan housing 15 on the end of discharge end 1a, the discharge end 1a of tungsten bar 1 is made of the return wire 10a of the loop electrode corresponding with the discharge end 1a of tungsten bar 1 to a side sidewall slope of conical pipe fan housing 15 appropriate section of conical pipe fan housing 15 these side sidewalls.All the other structures can with above-described embodiment roughly the same.

Other modified products based on the technical scheme of the burning torch of this continuous casting burning torch all belong to protection scope of the present invention; Above-described embodiment is not the exhaustive of the specific embodiment of the present invention.

Claims

1. the burning torch of a continuous casting burning torch, comprise the sparking electrode of being located in the rifle body that is connected with corresponding priming supply, it is characterized in that described sparking electrode is one to comprise contact rod, and be sheathed on earthenware on the contact rod successively, the compound sparking electrode of Huang Laguan and asbestos sleeve, be arranged with inner sleeve on the described compound sparking electrode, the inner sleeve outside is arranged with outer tube, the contact rod of compound sparking electrode grows in the part of an end of interior and/or outer tube and constitutes discharge end, be provided with Gas Pipe in inner sleeve or the outer tube, offer combustion gas squit hole with described Gas Pipe UNICOM corresponding to the discharge end of this compound sparking electrode on the corresponding end end face of interior and/or outer tube.

2. according to the burning torch of the described continuous casting burning torch of claim 1, it is characterized in that described loop electrode by be connected in described in and/or a return wire on the corresponding end outer face of outer tube and interior or outer tube thereof constitute.

3. according to the burning torch of claim 1 or 2 described continuous casting burning torches, it is characterized in that described in and/or outer tube be connected with a fan housing corresponding to this discharge end by the discharge end of compound sparking electrode.

4. according to the burning torch of the described continuous casting burning torch of claim 3, it is characterized in that being evenly equipped with some benefit air regulator mouths around described fan housing perisporium.

5. according to the burning torch of the described continuous casting burning torch of claim 3, it is characterized in that described fan housing is a conical pipe fan housing.

6. according to the burning torch of the described continuous casting burning torch of claim 3, it is characterized in that described fan housing constitutes the return wire of the loop electrode of compound sparking electrode.

7. according to the burning torch of claim 1 or 2 described continuous casting burning torches, it is characterized in that described inside and outside sleeve pipe is respectively copper pipe or stainless steel tube.

8. according to the burning torch of claim 1 or 2 described continuous casting burning torches, it is characterized in that described compound sparking electrode by corresponding ceramic swivel nut be fixedly connected on described in and/outer tube on, described contact rod is a tungsten bar.

9. according to the burning torch of claim 1 or 2 described continuous casting burning torches, it is characterized in that described priming supply is a high-voltage pulse power source, described compound sparking electrode is one to be connected in the high pressure pulse discharge electrode of this high-voltage pulse power source.

10. according to the burning torch of the described continuous casting burning torch of claim 1, it is characterized in that being provided with corresponding water leg between the inside and outside sleeve pipe of described rifle body.