| 摘要 |
Apparatus for mixing metered quantities of cement with metered quantities of water has a horizontal housing with a first section having an inlet for admission of cement, a cylindrical intermediate section which receives cement from the first section, and a mixing chamber which receives cement from the intermediate section and further receives metered quantities of water by way of a pipe. A feed screw is rotatably mounted in the first and intermediate sections to convey cement toward and into the mixing chamber. The thread of the feed screw carries radially outwardly extending paddles which are located in the first section and prevent accumulations of cement in the space around the corresponding portion of the feed screw. The mixing chamber is connected to the intermediate section by a hinge and contains a rotary mixing element whose shaft is separably coupled to the core of the feed screw. The mixing element can be withdrawn from the mixing chamber upon lifting of a cover which partially overlies the outlet opening of the mixing chamber, whereupon the mixing chamber is pivotable to a position for convenient cleaning of its interior. |
