Retreating-proof device for coal gun
The utility model relates to a coal injection lance anti-exit device, which comprises two hemicycle clips, a tight nut, and a pull rod; wherein, the bottom ends of the two clips are actively hinged, and a groove is arranged at the upper end; one end of the pull rod is connected on the upper groove o...
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Sprache: | eng |
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Zusammenfassung: | The utility model relates to a coal injection lance anti-exit device, which comprises two hemicycle clips, a tight nut, and a pull rod; wherein, the bottom ends of the two clips are actively hinged, and a groove is arranged at the upper end; one end of the pull rod is connected on the upper groove of one clip; the tight nut is arranged at the other end of the pull rod; an arc plug board is fixed on a hemicycle clip body of the clip. During the operation, the two hemicycle clips are installed on a coal injection lance fixer, the pull rod is gripped into the upper groove of the other hemicycle clip, and screwed into the tight nut to be fixed, according to the left space after the coal injection lance fixer is gripped into the non-return ball valve groove, the plug board is completely inserted into the opening part of the non-return ball valve, and the two hemicycle clips are tightly fixed on the coal injection lance fixer by the pull rod and the tight nut, then, the installation of the anti-exit device is completed. The utility model can entirely eradicate the coal injection lance exit accident, the adjusting quality of the coal injection lance is improved, and the utility model has good effect on the safe and smooth operation of a blast furnace. |
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