| 摘要 |
A vehicle and tank apparatus for hydro excavation has an inner tank, and an outer tank enclosing the inner tank such that a water space is created between walls of the inner and outer tanks. A water pump draws water from the water space and directs same to a pressure nozzle, and a vacuum system draws a mixture of water and excavated soil into the inner tank. A vehicle bed mounted on wheels for movement alone the ground supports the inner and outer tanks, water pump, and vacuum system. The apparatus can be configured such that during operations the center of gravity of the tanks remains in the same location on the vehicle bed. |
