Method for rehabilitating superannuated pipes using shot blasting equipment

摘要

The present invention relates to a paint injection apparatus for forming a coating film, which comprises: a rotation driving body (100) loaded on a truck (M) driven in a pipe (P) and having a swivel joint (110) rotationally installed in the front direction; a support (200) rotating by supported by the swivel joint (110); an injecting gun (300) supported by the support (200), rotating with the support (200), and injecting a double fluid-type paint mixture; and a washing water tank (400) supported by the support (200), rotating with the support (200), and storing washing water for washing the inside of the injecting gun (300).