混凝土喷射机利用压缩空气,将按一定配比的混凝土拌和料通过管道输送并高速喷射到受喷面上凝结硬化,从而形成混凝土支护层。具有效率高、成本底、工艺简单和机械化程度高等优点,它还可以一次成巷,省料,节约工程投资,故在全国大中型煤矿中得到广泛应用。我公司在II水平斜巷,采用 Concrete jet machine using compressed air, according to a certain ratio of concrete mix through the pipeline and spray high-speed jet sprayed surface condensation hardened to form a concrete support layer. It has the advantages of high efficiency, low cost, simple process and high degree of mechanization. It can also be an alley, material saving and project investment saving. Therefore, it is widely used in large and medium-sized coal mines nationwide. My company is inclined in the II level, adopted