METHOD AND DEVICE FOR MINIMISING AIR SEPARATION AND SUSPENSION DURING FLOW OF GYPSUM SUSPENSION Russian patent published in 2016 - IPC B28C5/12 B01F7/16 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to a method and apparatus for producing products based on gypsum from initial materials containing burned plaster, and can be used together with a mixer for suspension, which is used when feeding stirred gypsum suspension on production line for production of wall plates. Method of providing uniformly mixed additive-improved gypsum suspension on cloth comprises feeding burned plaster and water in mixing chamber mixer via at least one inlet of mixing chamber. Method also includes mixing contents of mixing chamber to obtain a suspension containing an aqueous dispersion of calcined gypsum. Suspension is then fed from outlet of mixer into a suspension feeding device having a pipeline. Furthermore, additive is introduced in a place located along length of pipeline suspension feed device with provision of suspension flow/mixtures with additives via pipeline. Method also includes change of flow direction without changing flow cross section with subsequent direction of flow through linear part of pipeline without changing flow cross section or flow direction, with subsequent change of flow without changing flow cross section and with subsequent increase in cross section area of flow in pipeline without changing flow direction before flow from outlet pipeline. Device for use at feed of mixed gypsum suspension on production line for production of wall plates can be communicated with mixer to receive gypsum suspension. Device comprises a pipeline with main inlet hole, connected by means of suspension with outlet hole of mixer and passing downstream to discharge chute for unloading suspension. Pipeline provides for suspension flow path. Device comprises two spaced apart bends in pipeline to provide for change in direction of flow between main inlet and discharge chute. Flow cross-section in bends does not increase. Device also includes a linear part of pipeline made extended between two bends. Flow cross-section does not increase in linear part. Device also includes at least one divergent section in pipeline for increase of flow cross-section between one of two downstream bends and discharge chute. Flow direction does not change in said at least one divergent section.

EFFECT: technical result is improvement of pipeline, extending from mixer, which minimises separation and suspension flow gypsum suspension via pipeline to outlet opening.

16 cl, 4 dwg