Method and apparatus for making an air-containing mixture

摘要

A new method for making an air-containing mixture introduces air into a viscous mass of raw mixture for forming the air-containing mixture. The introduction of air is performed in connection with introducing the mixture in a treating unit. The raw mixture is pumped under pressure through a nozzle for forming at least one jet which is sprayed through an air space against the surface of the mixture. Air is entrained in the jet of the mixture. The air-entraining jet enters the mixture, forming the air-containing mixture. The air-containing mixture formed thereby is subsequently introduced into the treatment unit.

主权项

1. A method for making an air-containing mixture, comprising:
providing a supply source of a viscous mass of raw material, providing a nozzle for receiving and supplying the raw material from the supply source, providing a pump coupled to the supply source and the nozzle, providing a mixing tank, providing an air source, pumping the raw mixture under pressure through the nozzle into the mixing tank, introducing air into the viscous mass of the raw material after pumping the raw material into the mixing tank and forming the air-containing mixture, forming an air space above the air-containing mixture in the mixing tank, forming at least one mixing jet by the pumping of the raw material through the nozzle, spraying the at least one mixing jet in the air space against the surface of the air-containing mixture, mixing air with the at least one mixing jet into the air-containing mixture in the mixing tank below the air space, entraining the air in the air-containing mixture and forming a final air-containing mixture, and introducing the final air-containing mixture into a treatment unit.