JPS5641499A - Jet pump for transporting muddy water - Google Patents

Abstract

PURPOSE:To discharge smoothly muddy waste water, that is, muddy water mixing in muck, by introducing perssurized muddy water through a muddy water transportation pump into a muddy water drain pipe and thus raising pressure in the tube instead of installing an independent suction pump. CONSTITUTION:In the operation of a muddy water transportation system, part of the pressurized muddy water in a muddy water transportation pipe 24 from jet holes 46 in a pressurized muddy water intake 26 through a pressurized muddy water chamber 48, conduit 34, and the pressurized muddy water chamber 52 of a pressurized muddy water supply section 32 is jetted out at a diameter expanding portion 30b of a pressurized muddy water supply section 32 from a jet hole that is in an end wall 56, and the jet does not obstruct the flow of muck but pressurizes it and keeps urging its flow. Because the diameter expanding portion 30b of the pessurized muddy water supply section 32 is tapered to reduce its diameter gradually and pressureized muddy water is jetted out past the end wall 56 which is at the portion with the largest diameter, high pressure water can be introduced into a muddy water drain pipe 30 without substantially reducing its inner diameter, and smooth drainage of muddy water can be promoted without stones and sands and mud staying in the diameter expanding portion 30b.