Abstract:
The invention relates to an anticorrosive agent comprising zinc dust, and a second component, an organic binder and a VOC-free or VOC-compatible solvent. In order to allow the metal workpieces to be coated in a reliable and energy-saving manner at constant quality, the binder comprises silicon dioxide and alkali silicate in a molar ratio of at least 4:1. The invention also relates to a device for mixing and metering solid and liquid components of an anticorrosive agent. Said device comprises means for metering the quantities of the respective components of the anticorrosive agent, a solution tank and a mixing device. An application system for applying the anticorrosive agent to a workpiece comprises a solution tank, feeding means, at least one pressure reducer connected to the solution tank and at least one spraying device connected to the solution tank.
Abstract:
The invention relates to a stirring device for the treatment of free-flowing media. According to the invention the device comprises the following features or components: at least two stirrers, each with a stirrer shaft and one stirring tool per stirrer shaft, said shafts run parallel to each other, or at an acute angle to each other, the stirring tools are either disc- or shell-shaped, the discs on the one stirrer shaft are displaced in the axial direction relative to the discs on the other shaft, one disc of the one stirrer shaft covers a part of the disc of the other stirrer shaft in plan view, the shafts of the stirrer may be driven in the same sense, the small gap between the adjacent stirring tools of different stirrer shafts is approximately constant in the region of overlap.
Abstract:
Device for efficiently coating a powdery material with an ionic-conductive polymer, a coating method, and a coated powdery material. A press-slide kneader processes a mixture of an ionic-conductive polymer or ionic-conductive polymer material (121) and a powdery material (11) to coat the powdery material (11) with the ionic-conductive polymer (12). A coating method and a powdery material are also disclosed.
Abstract:
The invention relates to a device consisting of a rotor chamber (1) in which a rotor (4) having a vertical rotor axis (3) is arranged, where the rotor (4) at least along its radial outer third has the shape of a conical envelope (22), and guide vanes(11) for circulating the starting material or product. The guide vanes (11) are arranged above the plane (9) of the upper edge (5) of the rotor (1) and statically against the inner wall (6) of the rotor chamber (1). Their cross-section in relation to the rotor axis (3) substantially has the shape of a segment of a circle or spiral and their inner ends are situated approximately in the central part of the rotor radius. The conical envelope (22) can have at least partly flat gas passages in the shape of holes or screens. The invention also relates to the use of the device for the production of pourable products. According to said method, cores are prepared or a coating layer is deposited on cores.
Abstract:
A method of densifying a bulk particulate material includes at least partially confining the bulk particulate material, and rotating a rotatable member (14) submerged under the bulk particulate material about an axis of rotation (16) to cause movement of the material particles essentially towards or away from the axis of rotation, thereby to provide a densified bulk particulate material. The method is particularly suitable for densifying silica fume. The invention extends to apparatus for densifying a bulk particulate material.
Abstract:
A machine (1)for homogenising a food substance has: a container (10) with a side wall (11) and a bottom wall (12) delimiting a cavity (10'); an impeller (30) with an impelling member (31) forming an impelling surface (31',31'',31''') that is drivable in rotation (r) about a central axial direction (30') of the impelling surface (31',31'',31''') for imparting a mechanical effect to the food substance; and a module (20) which has a housing means (22') that contains an inner chamber (22,22a) and that delimits a seat (21) for the container (10), the chamber (22,22a) containing an electric motor (24). The electric motor (24) has an output drive axis (24') with a driver device (24'') configured to drive a follower device (35) of the impeller (30). The driver device (24'') and the follower device (35) are magnetically coupled through a sidewall (11) and/or bottom wall (12) of the container (10). The driver device (24'') comprises a ferromagnetic or magnetic field-generating element (24a) that is arranged to be magnetically coupled to a corresponding ferromagnetic or magnetic field-generating element (36) of the follower device (35).The follower device (35) extends over a predominant part of the bottom wall (12) of the container (10) or across a substantial part of the wall (12) along a diameter thereof. The driver device (24) extends over a predominant part of a bottom part of the seat (21) or across a substantial part of the bottom part of the seat (21) along a diameter thereof. The ferromagnetic and magnetic field generating elements (24a,36) are positioned at extremal or peripheral parts of the follower device (35) and of the driver device (24'').