METHOD AND DEVICE FOR CONVEYING SNOW TROUGH PIPE LINE

PURPOSE:To enable conveyance of snow for a long distance by means of a small amount of water, by a method wherein snow is formed in the shape of cylinder, the snow is inserted into a launcher by dint of a low water pressure, and is pressed in a snow conveying pipe line with high water pressure. CONSTITUTION:Snow conveyed by a conveyor 12 is pressed against a mould 18 with the aid of a press cylinder 16 for moulding. The mould 18 is slid, a mould removing acylinder 22 is lowered, and launchers 30 are charged with the moulded snow through a collecting conveyor 24. When the launcher 30 is full of the snow, a valve 34 is closed, and valves 50 and 48 are opened. Gaps between the moulded snow pieces in the launcher 30 are filled with water until water outgoes in a tank 54 through the valve 50, and the valves 50 and 48 are closed. With valves 46 and 36 opened, high pressure water is fed in the lauchers 30. After the moulded snow passes a sensor 60, the valves 34 and 46 are closed and a valve 56 is opened to feed the moulded snow in a snow conveyance pipe 32. Repetition of the aboves enables the snow to be conveyed for a long distance by the use of a small amount of water.