SOIL-OFFTAKE UNIT

The soil-offtake unit has a pressure chamber, with the inlet through pressure branch pipe connected to the pressure pipeline, and with outlet connected to conical mixing chamber by circular gap. Suction chamber is installed inside the mixing chamber coaxially to the last one and the circular gap. To provide possibility of pulp suction to mixing chamber at small and at large depths without preliminary detachment of soil two-chamber jet aerators are installed in the circular gap. The first chamber of each aerator is connected with pressure chamber, and the second one - to additional air chamber connected through air duct to atmosphere.