Abstract:
Process for producing an elastomeric compound (108) comprising at least one elastomeric polymer (102) and a reinforcing filler (103), comprising at least one step of feeding at least one batch mixer (101) with at least part of elastomeric polymer and at least part of reinforcing filler, the batch mixer including a mixing chamber, a pair of rotors and a pair of pistons movable to and from the pair of rotors; thereafter, at least one mixing step in the batch mixer so as to obtain a batch of elastomeric compound (108); thereafter, a step of completely unloading the batch of elastomeric compound; thereafter, a step of feeding a twin-screw conical mixer (201) having a mixing chamber (202) accommodating two counter-rotating screws (205) converging towards an outlet mouth, and a door (206) for closing and opening the outlet mouth; thereafter, a step of mixing the batch of elastomeric compound in the twin-screw conical mixer with the door closed; thereafter, unloading the batch of elastomeric compound from the twin-screw conical mixer with the door open.
Abstract:
Bei einem Verfahren zur kontinuierlichen thermischen Trennung von Stoffgemischen, insbesondere von Lösungen, Suspensionen und Emulsionen, soll die kontinuierliche Behandlung der Stoffgemische in eine Hauptverdampfung und eine Entgasung unterteilt werden, wobei die Hauptverdampfung und die Entgasung in jeweils einem separaten Mischkneter stattfinden.
Abstract:
A continuous process wherein a mechanized and automated feeding system provides precision delivery of thermally and atmospherically conditioned components to a pelletization process including extrusion, pelletization, thermal processing, drying, and post- processing of the polymeric pellets formed. The components can be combined to form solutions, dispersions, emulsions, formulations, and the like. These components can further be reacted and thermally modified to form oligomers, pre-polymers, polymers, copolymers, and many combinations thereof.
Abstract:
A method for extrusion of polymer products, comprising a stage of preparing a base mixture in a turbomixer (2) which base mixture contains polymer powders and at least an additive, and a stage of introducing the base mixture into at least an extruder 810), via a mixer (6) into which an additional quantity of the additive and/or at least a further additive is introduced.
Abstract:
An apparatus and method for melting polymer is provided. In at least one embodiment, the apparatus includes a housing, two or more rotatable members at least partially contained within the housing, where each rotatable member having a shaft coupled thereto. The apparatus also includes a motor (220) having a drive shaft (270) directly coupled to the shaft of the rotatable members such that the rotatable members rotate at a speed of the motor drive shaft. The rotatable members are non-intermeshing and counter-rotating.
Abstract:
The installation for implementation of the process and for obtaining a construction material comprises a mixing tank and a unit for delivering the products mixed in the tank to a mould for shaping the construction material. The mixing tank (1) receives and kneads doses of phenolic resin and of powder products of various materials, such a mica, schist, talc, etc., and a screw-type unit (11) conveys the kneaded products to an intermediate hopper (2) for stabilizing the temperature, and which feeds a supply unit (3), which delivers them to a mixing and extrusion head (4), into which also opens a pipe (32) for the supply of a hardening catalyst. Application to the production of a uniform material, which can easily be machined with wood working tools and which is resistant to fire and to corrosive substances.
Abstract:
Disclosed herein is an apparatus for dispensing a mixture of at least two liquid components. The apparatus may comprise an A liquid component source fluidly connected with an A liquid component pump driven by a first motor; and a B liquid component source fluidly connected with a B liquid component pump driven by the first motor. Each of the A liquid component pump and the B liquid component pump may comprise at least two chambers. The A liquid component pump and the B liquid component pump may be fluidly connected with a dispenser unit. There may be one or more A liquid temperature regulators between the A liquid component pump and the dispenser unit. Similarly, there may be one or more B liquid temperature regulators between the B liquid component pump and the dispenser unit.
Abstract:
System (10) and method for producing rubber mixtures comprising: a series of rubber mixture production installation (20, 100, 300, 400) that define monopassage and multipassage sequences, and transport means (114, 116, 200, 240, 250), wherein the series of rubber mixture production installation comprises at least one mixing and cooling installation (100), the latter comprising: at least one external mixer having a pair of cylinders (110) for transforming the rubber mixture into a continuous sheet (112), at least one spray system having one or more spray rails (124, 126) positioned at each of an upper (102) and a lower (104) spray station, each spray rail being in communication with a source for supplying water and air to one or more nozzles (124a, 126a), and at least one aspiration system having one or more aspiration hoods (134, 136) positioned downstream of each spray rail, each aspiration hood being in communication with a source for supplying air.