| 摘要 |
FIELD: technological processes.SUBSTANCE: group of inventions relates to devices for grinding particles in a fluid material, in particular a powder or a semi-liquid for producing a chocolate mass, and to methods of grinding particles in such devices. Device comprises at least one pair of rollers, for which is installed at least one process parameter, in particular pressing pressure of rollers and/or speed of rotation, at least one of rollers, containing optical or acoustic sensor level gauge for measuring level of fluid material in roller gap or roller trough located in front of rollers. Control unit is configured to change at least one process parameter depending on measured level of fluid material in roller gap or roller trough. Method comprises grinding at least one roller pair, wherein one process parameter is controlled. In particular, pressing pressure of rollers and/or rotational speed of at least one roller is adjusted and level of fluid material in roller gap or roller trough located in front of rollers is measured. Depending on measured level, at least one process parameter is changed, said parameter selected, in particular, from pressing pressure of rollers, roller gap and rotational speed of at least one of rollers, as well as combination thereof. Level of fluid material in roller gap or roller trough is measured in a contactless manner using an optical or acoustic sensor.EFFECT: invention discloses a device for grinding particles in a fluid material.18 cl, 5 dwg |
