PROCESSING LINE FOR PRODUCTION OF MODIFIED CEMENT-FIBER PLATES Russian patent published in 2019 - IPC B28B15/00 

FIELD: construction.

SUBSTANCE: invention relates to production of construction materials and can be used at enterprises of construction industry for production of modified fiber-cement plates based on modified mixed binder autoclave hardening by wet method. Invention relates to production of construction materials and can be used at enterprises of construction industry for production of modified cement-fibrous boards with water-repellent surface based on modified mixed binder autoclave hardening by wet method. Process line comprises sections for feeding components with hoppers and dispensers, connected by conveyors with area of preparation of fibrous material, section for mixing components, format drum, press shafts and mechanical cutter, cutting mechanism connected by means of conveyor with mixer of wastes for cutting raw sheets, which is connected to bucket mixer, press, stacker, heat treatment chamber conveyor, trays, finished products section. Fibrous material preparation section contains runners, a water reducer and a water dispenser. Component mixing section includes turbo mixer and bucket mixer connected by means of chute and pipelines with sheet forming machine containing baths, pump supplying process water to recuperator, pit, mesh cylinders, cloth conveyor. Besides, the line additionally contains a section for preparation of modified mixed binder, including unit for mechanical activation of quartz sand, units for thermal and chemical activation of mineral additive, mixer of modified mixed binder, two autoclaves interconnected by pipeline with shutoff valve.

EFFECT: improved operational properties and durability of fiber-cement plates.

1 cl, 1 dwg