| 摘要 |
FIELD: construction. SUBSTANCE: apparatus comprises sealed mixing vessel whose lower bottom has discharge port, central shaft, auxiliary shaft, and feeding pipe. Both shafts are provided with scrapers which have at each end inclined blades. Central shaft is coupled to auxiliary one by coupling sleeve to enable its limited vertical axial movement. EFFECT: apparatus can be used for preparing and applying plastering and fine-grain concrete, as well as all types of decorative stucco. |
