Convenient type quick narrow-slit accident cutting gun

Abstract

The invention relates to a convenient type quick narrow-slit accident cutting gun. The cutting gun comprises an accident cutting gun gun-head, an accident cutting gun main body, a protective cover anda stop pin part, wherein the accident cutting gun gun-head comprises an internal mixing type accident cutting nozzle, a cutting nozzle locking screw and a 180-degreee micro cutting nozzle base, the internal mixing type accident cutting nozzle is in locking connection to the 180-degree micro cutting nozzle base through the cutting nozzle locking screw cap; the stop pin part comprises a rotary cover, a stop pin, a blocking head body, a blocking sleeve, a pin sleeve I, a pin sleeve II and a stop pin supporting plate, the rotary cover is welded with one end of a cylindrical head of the stop pin through silver soldering, the pin sleeve I is welded with the pin sleeve II, the blocking head body and the blocking sleeve are arranged at one end of the cylindrical surface of the stop pin in a sleeving mode, a welded welding assembly of the pin sleeve I and the pin sleeve II is arranged in the sleeving mode, and the threads are locked for tightly locking the blocking sleeve with the stop pin; one end of the stop pin supporting plate is welded with the assembled stop pin part, and the other end of the stop pin supporting plate is welded on a position between the rear surface of the protectivecover and a cutting oxygen handle; and the protective cover is arranged on the middle rear part of the accident cutting gun main body. The convenient type quick narrow-slit accident cutting gun is small in size, is light in weight, and relieves labor intensity of a worker.

Description

technical field [0001] The invention relates to a cutting torch, in particular to a portable fast narrow-slit accident cutting torch. Background technique [0002] A continuous casting machine generally has 3-6 strands of strands, and the spacing between the strands is generally about 1.2-1.5 meters. When the automatic torch on the flame cutting machine breaks down unexpectedly and cannot be used, the heavy-duty accident torch is generally used to cut the high-temperature billet manually. Due to the high temperature of the intermediate billet flow, workers cannot access it, so only the extended accident torch is used. The head and cutting nozzle are relatively heavy and require a lot of physical strength. If the conventional light-duty hand-held G01-300 accident torch is used, the thickness of the continuous casting billet is generally greater than 100MM, which is difficult to cut. When workers use heavy-duty accident torches, they must press the cutting oxygen opening pres...

AI Technical Summary

Problems solved by technology

Another technical background is that when a steel leakage accident occurs in the continuous casting machine, a large amount of molten steel overflows to various equipment such as the rollers below the crystallizer, and the molten steel condenses on these equipment and must be cleaned up. The gun head is relatively wide, and it is difficult to extend into the narrow roll gap, so the steel slag inside the equipment is not easy to clean

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