A separating device is provided for separating a harvested mixture of root crops and admixtures. The separating device includes at least one conveyor element which circulates in operation at least for supplying the harvested mixture to a separation region, or for discharging the root crops from the separation region in a conveying direction. The separating device includes at least one fluid flow generator and at least one directing device for directing a fluid flow in a fluid flow direction to the separation region. The directing device is at least realized in at least one directing portion by the conveyor element itself.

A separating device is provided for separating a harvested mixture of root crops and admixtures. The separating device includes at least one conveyor element which circulates in operation at least for supplying the harvested mixture to a separation region, or for discharging the root crops from the separation region in a conveying direction. The separating device includes at least one fluid flow generator and at least one directing device for directing a fluid flow in a fluid flow direction to the separation region. The directing device is at least realized in at least one directing portion by the conveyor element itself.

A dedusting apparatus removes dust and debris from particulate material flowing over the surface of a wash deck formed with steps and incorporating an air knife engaging the flow of particulate material as the material drops from one wash deck level to another. An ionizing wire is placed at each step on the wash deck so that the air knife blows negative ions from the ionizing wire into the particulate material falling off the step onto the level of wash deck below the ionizing wire. The wash deck is formed with openings to allow air to blow through the wash deck surface and remove dust and debris from the flow of particulate material. The wash deck can be constructed from modules supported on one another in a manner to present an overhang at each step. The wash deck can be formed from a flat pattern as a unitary bent structure.

A dedusting apparatus removes dust and debris from particulate material flowing over the surface of a wash deck formed with steps and incorporating an air knife engaging the flow of particulate material as the material drops from one wash deck level to another. An ionizing wire is placed at each step on the wash deck so that the air knife blows negative ions from the ionizing wire into the particulate material falling off the step onto the level of wash deck below the ionizing wire. The wash deck is formed with openings to allow air to blow through the wash deck surface and remove dust and debris from the flow of particulate material. The wash deck can be constructed from modules supported on one another in a manner to present an overhang at each step. The wash deck can be formed from a flat pattern as a unitary bent structure.

A vertical roller mill includes a housing, a chute that supplies materials to be grinded to a center portion of the housing, a grinder that is provided below the chute and grinds the materials to be grinded, an exhaust pipe that is provided above the grinder, a transport mechanism that forms an air flow for transporting, to the exhaust pipe, grinded materials grinded by the grinder, and a flow-constricting flow path provided between the grinder and the exhaust pipe and narrows a flow path area for the air flow, in which the flow-constricting flow path is formed between a first flow-constricting ring provided in the center portion of the housing and a second flow-constricting ring provided to protrude from the housing toward the center portion of the housing.

A vertical roller mill includes a housing, a chute that supplies materials to be grinded to a center portion of the housing, a grinder that is provided below the chute and grinds the materials to be grinded, an exhaust pipe that is provided above the grinder, a transport mechanism that forms an air flow for transporting, to the exhaust pipe, grinded materials grinded by the grinder, and a flow-constricting flow path provided between the grinder and the exhaust pipe and narrows a flow path area for the air flow, in which the flow-constricting flow path is formed between a first flow-constricting ring provided in the center portion of the housing and a second flow-constricting ring provided to protrude from the housing toward the center portion of the housing.

This system is for implementing a method for feeding of a granulated substance, and is provided with: a feeding path through which cut tobacco is fed toward a tobacco band in a cigarette manufacturing machine; a separation device for separating, by winnowing, the cut tobacco into good products and sub-standard products that are heavier than the good products, in the process of feeding the cut tobacco; an adjustment device that is capable of directly and/or indirectly adjusting the velocity of a current of air used for separation through winnowing; a transfer path which receives and transfers the sub-standard products discharged from the separation device; a weighing device which takes a sample of the sub-standard products being transferred on the transfer path and measures the weight of the sampled sub-standard products and outputs the weighing result; and a controller which, on the basis of the weighing result, controls the operation of the adjustment device so as to bring the sampling weight equal to a target value being the management standard.

This system is for implementing a method for feeding of a granulated substance, and is provided with: a feeding path through which cut tobacco is fed toward a tobacco band in a cigarette manufacturing machine; a separation device for separating, by winnowing, the cut tobacco into good products and sub-standard products that are heavier than the good products, in the process of feeding the cut tobacco; an adjustment device that is capable of directly and/or indirectly adjusting the velocity of a current of air used for separation through winnowing; a transfer path which receives and transfers the sub-standard products discharged from the separation device; a weighing device which takes a sample of the sub-standard products being transferred on the transfer path and measures the weight of the sampled sub-standard products and outputs the weighing result; and a controller which, on the basis of the weighing result, controls the operation of the adjustment device so as to bring the sampling weight equal to a target value being the management standard.

A passive food screen device (1) for flour in a delivery flow comprising: a housing (2) with a housing inlet (3) and a housing outlet (4); a closed screen insert (5) arranged substantially within the housing (2) such that a spatial area (6) is formed between the inner wall (7) of the housing (2) and the outer wall (8) of the screen insert (5) and screen elements (9) of the screen insert (5) are arranged substantially parallel to the main conveying direction (F); and a hose coupling (10) on the housing inlet (3) and/or on the housing outlet (4). The food screen device allows a high delivery capacity, and, by virtue of its narrow design, can be carried on a silo vehicle and used as a control screen when delivering flour. The food screen device (1) is designed such that the flour can be moved in an air delivery stream.

A passive food screen device (1) for flour in a delivery flow comprising: a housing (2) with a housing inlet (3) and a housing outlet (4); a closed screen insert (5) arranged substantially within the housing (2) such that a spatial area (6) is formed between the inner wall (7) of the housing (2) and the outer wall (8) of the screen insert (5) and screen elements (9) of the screen insert (5) are arranged substantially parallel to the main conveying direction (F); and a hose coupling (10) on the housing inlet (3) and/or on the housing outlet (4). The food screen device allows a high delivery capacity, and, by virtue of its narrow design, can be carried on a silo vehicle and used as a control screen when delivering flour. The food screen device (1) is designed such that the flour can be moved in an air delivery stream.