The invention relates to a method and a plant for the continuous production of engineered stone slabs. In the method, raw materials comprising at least one mineral filler and one organic binder are mixed, applied to a lower belt of a dual-belt press, or a conveying means mounted upstream of the lower belt, and subsequently continuously pressed, and the binder is cured. A continuously-obtained material strand is separated into individual engineered stone slabs. It is provided that the mixing operation of the raw materials is carried out at staggered times in a batch mixing operation by means of at least two separate mixing devices. The mixed raw materials from the mixing devices are transferred into one, or multiple, spreading device(s) at staggered times and are applied continuously and without interruption to the lower belt, or the conveying means mounted upstream of the lower belt, by means of the spreading device(s).

Levelling device for materials in powder or granule form, comprising: a rest plane (2), mobile in advancement along a longitudinal direction (X) and predisposed to transport a layer (L) having a thickness (S) of material in powder or granule form. The device comprises a leveller (5,6), positioned above the rest plane (2).

The invention is directed to a machine for compacting agricultural fibrous matter into a board, comprising a hopper for receiving the agricultural fibrous matter; an extruder comprising an extrusion passage downstream of the hopper; and a ram configured for moving in a reciprocal manner along the extrusion passage; wherein the extrusion passage further comprises a movable wall configured for moving between a feed position, opening the extrusion passage to the hopper, and an extrusion position, closing the extrusion passage.

A filling apparatus for filling cavities of a rotary press includes a filling chamber defining an inlet opening through which filling material enters the filling chamber and an outlet opening through which filling material exits into the cavities of the rotary press. A conveyor wheel is positioned in the filling chamber and defines a plurality of conveyor pockets structured to receive the filing material. The conveyor wheel is rotatable relative to the filling chamber about an axis of rotation arranged at an angle (α) to a vertical axis. The plurality of conveyor pockets are arranged along a circular path and are rotated along the inlet opening and along the outlet opening when the conveyor wheel is rotated about the axis of rotation. The filling material received in each of the plurality of the plurality of conveyor pockets is conveyed from the inlet opening to the outlet opening.

A dry granulator includes a rack, a feeding device mounted on the rack, and a slip roller device. The feeding device includes a vertical feeding screw, a buffer hopper, a stirring paddle, a horizontal feeding screw, and two drive assemblies. The drive assembly includes a drive motor and a drive shaft. The slip roller device includes a servo motor, a trapezoidal screw, a primary slip roller assembly and a secondary slip roller. The primary slip roller assembly includes a support frame, and a primary slip roller. A guide rail is arranged between the servo motor and the secondary slip roller. The support frame is provided with a screw hole. A coupling member is arranged between the output shaft of the drive motor and the drive shaft. The coupling member includes a reserved space. The horizontal feeding screw and the vertical feeding screw are drivingly provided with a transmission member, respectively.

A powdery-material mixing and feeding system is configured to feed a machine configured to execute a post process with mixed-powdery materials obtained by mixing a first powdery material and a second powdery material discharged from powdery-material feeding devices at a required ratio, wherein when a flow rate of the first powdery material discharged from the first powdery-material feeding device departs from a target value by a predetermined amount or more, a controller increases or decreases the flow rate of the second powdery material discharged from the second powdery-material feeding device such that the ratio of the first powdery material to the second powdery material contained in the mixed-powdery materials is kept within a desired range.

Methods of manufacturing a conveyor belt (126) include applying a rubber composition (114) to a first side of fabric reinforcement (112) and scattering productive thermoplastic elastomer pellets (106) onto a second side of the fabric reinforcement to produce an uncured belt structure (120). The uncured belt structure (120) is continuous fed into a double belt press (116) to press the productive thermoplastic elastomer pellets (106) together with the fabric reinforcement (112) to produce an uncured belt (128). Uncured belt (128) is then heated in the double belt press (116) to a temperature of at least 300° F. and maintained in the double belt press (116) under a pressure of at least 12 psi and a temperature of at least 300° C. for a residence time of at least 20 minutes to produce a cured conveyor belt (130), which is continuously withdrawn from the double belt press (116).

The present invention provides a solvent-free process for producing foil with a functional coating containing an active material and a meltable polymer, the foil with a functional coating and its use as an electrode foil, electrolyte in solid-state batteries or separator for electrochemical storage. The process comprises scattering a dry powder mixture onto a foil, melting the dry powder mixture, and calendering the foil covered with the molten powder.

A filling apparatus comprises a filling material reservoir and a filling chamber that is connected to the filling material reservoir with a filling opening configured to dispense filling material into cavities in the rotary press. A first rotatably driven stirrer blade wheel with one or more stirrer blades and a second rotatably driven stirrer blade wheel with one or more stirrer blades are arranged in the filling chamber. The first rotatably driven stirrer blade wheel has at least one of a different geometry, a different direction of rotation, or a different rotary speed, than the second rotatably driven stirrer blade wheel.

Machine and method for compacting a powder material; the machine comprises a compacting device, which is designed to compact the powder material; a conveyor assembly to transport the powder material along a first portion of a given path to the compacting device; and a feeding assembly, which is designed to feed the powder material to the conveyor assembly and comprises a transfer chamber designed to hold and transfer the powder material; movable elements are present at a wall of the transfer chamber.