DE1558245A1 - Cutting torch for cutting off the semi-finished product in a system for continuous metal casting - Google Patents

Description

FRANKfURT (MAIN) 1 February _{1, 1967}

ill Al

Gosudarstveny Sojuzny Institute Projektirovanya Metallouigitcheskilch Zavodov, prospectus I.Iira "toi-,

Moscow, USSH.

Cutting torch for cutting off the semi-finished product in a system to itontinuous metal guas. ·

The invention relates to a cutting torch / with the at continuous metal casting from the die koiaaeade Semi-finished product is continuously cut into pieces. These are cutting torches that have an exhaust nozzle for the Have fuel gas and the cutting oxygen, a pot carrying this nozzle and a housing carrying the head.

With cutting torches for continuous metal casting it is very important that they work evenly and without interruption. It must therefore be used during the cutting process Avoid the flame going out or flashing back. '. '. "■' ■

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! .lit Ince .ctoxvorrichtun ^ en. it is schv.ieri ^, ./οκη r: i · /:;! ■ * ξλ-possible, a ^ lcichmäßeg and interruption ^ :: ei eii A- ": ito · To achieve. LIaTi can only improve the stability of the!?! - * .. "c by oiar. For the Bre: .n _u -3S a'- · higher 2r c: - :, than allre ... a usual, selects and the: Schneiibr snner ,, especially the supply line of the fuel gas, r ^ it cooling water.

Sine except ·, i · h. A mixture of fuel gas and oxygen at the outlet of the nozzle does not allow the fuel gas to be used effectively. Better results are achieved with cutting torches with colored interior. For these, it is in turn essential to provide check valves in the gas lines. However, the arrangement of check valves "at the output can not guarantee more than jrleiefemässige z ^ ei MeterL _t D3S with cutting torches great length of z. B. works.

Another difficulty is that dss too. cutting semi-finished product deformations or unevenness type of place where the cut is made, can be removed. This results in an uncertainty about the right one Position with which the cutting torch cuts the edge of the Attack semi-finished products 3oll · The cutting torch 23133 therefore looks "in the area of the edge to be cut at a reduced speed move to begin the cut can.

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"exist. also with regard to the cooling of the ocbiieidbrenners, as this is attached to the elongated holding and guide members H are arranged, whereby the cooling water. . to a more attractive price reduction of the entire cutting. burner9nlag®

the 3rfinching is the elimination of the above lisciiteile j scvvobl with regard to the uniform underbxecbun ^ sfxeien Working as well as the safe start of the cut as 3ucb of cooling the cutting biennex. Bracket. and leaders. Another task is protection the supply range including flexible lines 'and otherwiseit-eii Zliifcebörs,. · such as valves-, 3teuerun £; seerät9, pressure

i switch, etc. ..-.

The invention extends from an ochneidbrermsr to the ab- 'e-älHisiäeii' the lislbastigs in a system for the continuous metal charge of the one burner nozzle for the fuel gas and the oxygen, 'eiiien · this »D; ^: se carrying head and an open Ko |) £ tra-eBQeS'housing. The cutting torch is öaSuich, g ^^ Röseiehnetv d / ass-sein-Gebjiuse two in the V / inkel ·. sueinaxiö ^ g: sSe ^ enps-JEeile points to. from. which one V / in - "- 'kelary. the SaarteMbisennei'köpf .." carries and ο ex other v / inkel-' - 'poor · as a carrier .-. "^ isrtt- .. and. _i: aij his fx-ei, enSnce through connections - ffli1i .-: £ i; .es3Jb-le-Q iZufühxledtungen is connected and is mounted to the SciineiSeji. that be with

bad original *

The end connected to the supply lines in each position the V / urn is protected from radiation.

Further details can be sent to the person shown in the drawings Embodiment explained.

J? I £. 1 is a partially cutaway view a set of two cutting torches.

FIr. 2 is a section along the line II - II of the j? IK. 1.

! / i ITi ^. 1 sine zv: n cut off! ces -us der Aue pulling device of the GiessiMscLine coming H8lb :: cu £: s 1 two f.'ohneicbrenner with heads 2 and 3 provided. When cutting '"''" the two cutting torches are moved against each other. ,,

Each cutting torch has a housing that has an angled * part. One Yiinkelaria 4 carries the cutting torch head 2 or J. The other 7 / arm is the arm 5 'which is connected with its free end by means of the various connections 6 with the flexible supply lines is. At the free end of the carrier 5, all devices provided for supplying and regulating the cutting torch, such as valves, pressure regulators, switches, control devices, etc., can also be arranged. "

Every cutting torch leads in its own way. one line 7 for Jrenngss, one line 8 for cutting oxygen, two Eühl-Tsa; p s he lines 9 and a line 1o for heating oxygen.

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The carriers 3 have a double jacket 11. Cooling air is introduced into the space between the nozzle 12 and then escapes through the opening 13. This air cooling is sufficient for the carrier 5 and the lines contained in them.

On the other hand, the angle arm 4 is cooled by water by means of the lines 9. This water cooling guarantees one effective protection of the ..inkelarnis 4 and those contained in it. Cables. ; .

A known ignition device 14-, ζ is used to ignite the cutting torch. B ► a spark nzündung _t seen before.

Before the zone in which the fuel gas is mixed with oxygen will j hafindan Hückgchlagventile 15 to a uniform Working of the cutting torch without flashback and penetration of one gas into the line of another gas to ensure.

In the case of the illustrated embodiment, the backlash valve is used! .15 arranged at the junction of the two housing arms A and 5.

The combustion nozzles are arranged in such a way that their axes make a slight angle of about 2 ° to the surfaces 16 of the semi-finished product to form 3 °. As a result, the nozzle axes are directed in such a way that the combustion flame is in ßichtußg the tip of the flame the surface 16 removed. The from the semi-finished surface 18, on the

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the cutting torches move past, u & - edges 17 formed by Cen surfaces graze in the correct way as a result of this Btisen-Alignment, even if the semifinished product has Le formatione.i. The attack of the snow fl-r, e does not take place with a single point, but with one point of its lingsau expansion. This creates favorable lexhllvnlss-z for the cut, in particular at the beginning of the cut, at the edges 17. This avoids the wrong setting and failure of Eer ^ chr.itt.

Eie two supports 5 of the cutting torch can be directed towards of the arrows 19 can be moved back and forth · Bis sia free ünäe the carrier 5 connected flexible i ^ eitrtin ^ s stay with Always work the cutting torch outside the eggs Zone.

cUr f

Of course, other changes are also possible.

For example, the two housing parts 4 and 5 do not need, as in the embodiment shown, at right angles to each other

and the angle need not be the same for both cutting torches. -

ORIGINAL

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Claims (6)

■ '■ - claims -. i. ! ScIsBeiefeenner for cutting the Halbzeugs- in a plant ZUH3 continuous lietallguss which a burner nozzle for the Kreraiiias and ^{Scbneidsauerstof;} , has a head carrying the se nozzle and an ε housing stepping on the head, thereby gels. EiiEiEelolhnet that the housing has the cutting brake; e rs zi ^ ei im, flake I £ u.einsn.ier_habenJe parts. ,, of which one Äirakei-jrm (4-) the ^^ cutting torch head (2, 3) wear ^ t and the --1 »Αβ1 ^ χ: α. serves as a carrier (5), at its free end inscli'l «3i? e tS) -jnit flexible Suf uhr lines is connected tmt -zumliolraeiden of the semi-finished product - (I) shifts-ar mounted / is * nm-d &gss' ^: ÄÄ: 3jäng3 of the carrier (5). so bemes.san is that sit 'G eil.Zufoh-rlinien, verbiyjü e.ne s Snce in each, S te 1- the ." ^T är me radiation is protected. *, ■ 2. Scfeseidb-reniier * "after. Claim 1 ', -. Thereby ^ that oae aei3en = G-ehäuseteile, - naialich del carrier (5) and ": (*}, /. göiiadIinig _; are and-to each other at an angle 5. SctaEeidbreüner according to claim 1 or 2, characterized in that the axis of the burner nozzle ₉ to the side (16) of HAIB seiigE (1), which is adjacent to DER side (18) along which during the cutting AEIE Exenneröüse Trerschieht, in a circlet. wan et \ ra 2 to 3 ^{P is} aligned, so that at the intersection "Begiim ül-2 formed by the mentioned surfaces edge (17) of BADORiGiNAL 0098i27Cf? 05 a point of the flame length is hit or the flame (kr <§ ■ £ ■ «edge (17) is directed outwards. 4. cutting torch according to claim 1 to J, characterized in that that in the cutting torch housing in the fuel gas and oxygen lines .Check valves (15) are provided and that these check valves in front of and at a short distance from the Zone in which fuel gas and oxygen are mixed. ;; · Cutting torch according to claim 4, characterized in that the check valves (15) in the connector - ;; · c> 3 η dean angle noise (4) and the carrier (5) are arranged. 6. Cutting torch according to claim 1 to 4, characterized daduxch, that in the son's burner housing a device for water cooling in dar from the check valves (15) up to the burner nozzle-reaching zone is provided, while in the from the check valves (15) to the free end of the carrier (5) Reaching zone a double jacket (11) with connections for cooling air is provided. BA _{0 o} p? O \ HAL