Abstract:
In order to efficiently discharge crushed biomass powder to the outside, the biomass crushing device body (13) of a biomass crushing device is configured in such a manner that the barrel section (21) at the center of the biomass crushing device body (13) in the vertical axis direction is reduced in diameter, and discharge pipes (22) for discharging the biomass powder (17) are provided in the circumferential direction at the top plate (13a) of the crushing device body (13), the top plate (13a) being located on a line extended from the vertical axis of the barrel section (21) reduced in diameter. In order to efficiently crush a biomass material, the biomass crushing device body (13) is configured in such a manner that the table liner (14b) of a crush table (14) comprises fan-like segments (31a, 31b), with the segments having different thicknesses in the height direction. The biomass crushing device is provided with a roller speed adjustment mechanism (71) which can adjust the rotational speed of a crushing roller (16) so that the peripheral speed of the crushing roller (16) is different from the peripheral speed of the crushing table (14).
Abstract:
The invention concerns a crusher consisting of a ring (10) with horizontal axis, means for driving the ring in rotation about its axis, at least one roller (16) whereof the axis is parallel to that of the ring and which is placed inside the latter so as to roll on its internal surface and elastic means (30) pressing the roller on the ring, the roller being supported at its ends by two arms (22) fixed on the crusher frame so as to pivot about an axis parallel to the ring axis. In order to limit the canting of the roller while limiting the crushing pressure and, thereby the mechanical stresses to acceptable values, the arms (22) are mutually linked by a torque shaft (24) parallel to the rotation axis of the arms.
Abstract:
A tubular mill for grinding natural and synthetic raw materials, in particular for the cement industry, comprising a rotary cylindrical drum (11, 111) arranged with its axis (27) horizontal and containing at least one grinding element (25, 34), in which there are one or more grinding chambers (22; 23, 123) connected together, in at least one (22) of which the grinding element consists of a roller (25) which when in its operating position has its axis (26) essentially parallel to the axis (27) of the drum (11, 111) and is supported by an independent external pressure and extraction support (28), the roller (25) being idle and, at least along one of its outer generating lines, engaging an annular grinding track (24) rigid with the inner wall of the drum. As the grinding element for the second chamber (23), the mill can comprise a second roller (34) arranged and supported as the first roller (25), or a plurality of grinding balls.
Abstract:
A device for removing adhering material from sand surfaces is provided. The device includes a rotary box (5), driving means (20) for rotating the rotary box, and movable means (8) having a movable surface (15). The rotary box includes a circular bottom plate (5A), a circumferential, inclined wall (5B), and a ring portion (5C). The movable surface (15) is substantially parallel to and spaced apart from the inclined wall (5B) of the rotary box. As the sand is centrifuged by the rotary box, a sand layer S is formed along the inclined wall. The sand layer, the thickness of which is greater than distance between the movable surface (15) and the inclined wall (5B), moves around with the rotary box and come between the surface (15) and the wall (5B) to thereby impart to the sand compressive and shearing forces to effectively remove the adhering material. The processed sand then overflows the ring portion (5C) of the rotary box.
Abstract:
In order to efficiently discharge crushed biomass powder to the outside, the biomass crushing device body (13) of a biomass crushing device is configured in such a manner that the barrel section (21) at the center of the biomass crushing device body (13) in the vertical axis direction is reduced in diameter, and discharge pipes (22) for discharging the biomass powder (17) are provided in the circumferential direction at the top plate (13a) of the crushing device body (13), the top plate (13a) being located on a line extended from the vertical axis of the barrel section (21) reduced in diameter. In order to efficiently crush a biomass material, the biomass crushing device body (13) is configured in such a manner that the table liner (14b) of a crush table (14) comprises fan-like segments (31a, 31b), with the segments having different thicknesses in the height direction. The biomass crushing device is provided with a roller speed adjustment mechanism (71) which can adjust the rotational speed of a crushing roller (16) so that the peripheral speed of the crushing roller (16) is different from the peripheral speed of the crushing table (14).
Abstract:
The invention concerns a crusher consisting of a ring (10) with horizontal axis, means for driving the ring in rotation about its axis, at least one roller (16) whereof the axis is parallel to that of the ring and which is placed inside the latter so as to roll on its internal surface and elastic means (30) pressing the roller on the ring, the roller being supported at its ends by two arms (22) fixed on the crusher frame so as to pivot about an axis parallel to the ring axis. In order to limit the canting of the roller while limiting the crushing pressure and, thereby the mechanical stresses to acceptable values, the arms (22) are mutually linked by a torque shaft (24) parallel to the rotation axis of the arms.
Abstract:
A tubular mill for grinding natural and synthetic raw materials, in particular for the cement industry, comprising a rotary cylindrical drum (11, 111) arranged with its axis (27) horizontal and containing at least one grinding element (25, 34), in which there are one or more grinding chambers (22; 23, 123) connected together, in at least one (22) of which the grinding element consists of a roller (25) which when in its operating position has its axis (26) essentially parallel to the axis (27) of the drum (11, 111) and is supported by an independent external pressure and extraction support (28), the roller (25) being idle and, at least along one of its outer generating lines, engaging an annular grinding track (24) rigid with the inner wall of the drum. As the grinding element for the second chamber (23), the mill can comprise a second roller (34) arranged and supported as the first roller (25), or a plurality of grinding balls.