B29B7/483

THERMAL DECOMPOSITION TREATMENT APPARATUS AND THERMAL DECOMPOSITION TREATMENT METHOD

There is provided with a thermal decomposition treatment apparatus capable of thermally decomposing a resin under an appropriate thermal decomposition condition. The thermal decomposition treatment apparatus comprises: a thermal decomposition treatment unit configured to thermally decompose a recycled material containing a resin; a detection unit configured to detect an impurity in the recycled material to be introduced into the thermal decomposition treatment unit; and a determination unit configured to determine a condition related to an introduction amount of a virgin material of the resin to be introduced, together with the recycled material, into the thermal decomposition treatment unit, based on a detection result of the detection unit.

METHOD FOR PRODUCING WATER-ABSORBING RESIN POWDER

Provided is a method for producing a water-absorbing resin powder excellent in water absorption speed. The method for producing a water-absorbing resin powder includes a polymerization step of polymerizing an aqueous monomer solution to obtain a crosslinked hydrogel polymer and a gel-crushing step of crushing the crosslinked hydrogel polymer after the polymerization step using a gel-crushing device to obtain a crosslinked particulate hydrogel polymer, in which the gel-crushing device includes an input port, a discharge port, and a main body incorporating a plurality of rotation axes each including a crusher, and in the gel-crushing step, the crosslinked hydrogel polymer is continuously put into the input port and the crosslinked particulate hydrogel polymer is continuously taken out from the discharge port, the crosslinked hydrogel polymer to be put into the input port has a rate of polymerization of 90 mass % or more, a gel-crushing coefficient is 0.020 J/g.Math.sec or more and 3.0 J/g.Math.sec or less, and the crosslinked particulate hydrogel polymer discharged from the discharge port has a mass average particle diameter of 500 m or less as converted to a solid content.

METHOD AND REPROCESSING INSTALLATION FOR REPROCESSING FILM WASTE MATERIAL
20220105662 · 2022-04-07 ·

In a method for reprocessing film waste material, the film waste material is comminuted into recycling material by means of a comminuting device. The recycling material is fed by means of a feeding device in a multi-shaft screw machine. In the multi-shaft screw machine, the recycling material is plasticized into a material melt and processed into raw material. The raw material may again be fed to a production installation for the production of films.

Processor and a process for granulation of powders

A fractional lobe processor is disclosed. The fractional lobe processor comprises an intake zone comprising at least one deep flighted shovel element on each intermeshing screw for receiving a input blend comprising an active substance and an excipient; a granulation zone consisting of only fractional lobe elements, and having a provision for introducing moisture or a binder solution, for granulating the active substance and the excipient; an optional, drying zone for drying the wet granules; and a discharge zone for discharging the granules; wherein the granulation zone is located before the discharge zone and after the intake zone; wherein the drying zone has one or more fractional lobe elements on each shaft; and wherein the granulation zone has a plurality of fractional lobe elements on each shaft.

Method for granulating powder

Methods for granulating powder in a single piece of equipment include at least the following: (a) continuously introducing the powder and a granulating fluid to the single piece of equipment; (b) passing the powder and the granulating fluid through a granulating zone of the single piece of equipment to form wet granules; (c) passing the wet granules through a drying zone of the single piece of equipment; (d) optionally passing granules through a discharge zone of the single piece of equipment; and (e) continuously discharging the granules from the single piece of equipment where the single piece of equipment is not a fluid bed processor.

SCREW FOR EXTRUDER COMPRISING A PASSAGE CROSSING OVER BETWEEN ADJACENT CYLINDRICAL BODIES

A screw includes a screw main body, a conveyance portion conveying a raw material, and a passage provided in the screw main body. The passage includes a first passage element, a second passage element, and a third passage element. The screw main body has a plurality of cylindrical bodies arranged in an axial direction of the rotating shaft. At least a portion of the conveyance portion is formed on outer peripheral surfaces of the cylindrical bodies adjacent to each other, and the passage is formed in the cylindrical body so as to cross over between the adjacent cylindrical bodies.

Extruder screw having paths within the screw, extruder, and extrusion method

A conveyance portion, a barrier portion, and a path are provided at places of a portion of a screw main body in which a kneading portion is provided. In at least one of the places, an entrance is opened to cause raw materials, conveyance of which is limited by a barrier portion to increase pressure on the raw materials, to flow in. The raw materials flowing in from the entrance flow through the path in the opposite direction to a conveyance direction of the conveyance portion. An exit is opened in an outer circumferential surface of the screw main body at a position outside the conveyance portion in which the entrance is opened.

Screw machine and method for the processing of material to be processed
11117306 · 2021-09-14 · ·

A screw machine includes an inductive heating device for processing of material to be processed. The inductive heating device is used to heat the material in a heating zone. In the heating zone, at least one housing portion is made of an electromagnetically transparent material at least partly, the material being non-magnetic and electrically non-conductive, whereas at least one treatment element shaft is made of an electrically conductive material at least partly. The inductive heating device includes at least one coil formed integrally with a component of the at least one housing portion, in particular in such a way as to form a hybrid component. During the processing of the material, the inductive heating device generates an alternating magnetic field that produces eddy current losses in the at least one treatment element shaft, the eddy current losses leading to a temperature increase of the at least one treatment element shaft.

Screw for extruder comprising a passage crossing over between adjacent cylindrical bodies

A screw includes a screw main body, a conveyance portion conveying a raw material, and a passage provided in the screw main body. The passage includes a first passage element, a second passage element, and a third passage element. The screw main body has a plurality of cylindrical bodies arranged in an axial direction of the rotating shaft. At least a portion of the conveyance portion is formed on outer peripheral surfaces of the cylindrical bodies adjacent to each other, and the passage is formed in the cylindrical body so as to cross over between the adjacent cylindrical bodies.

Process for obtaining thermoplastic composite pellets reinforced with cellulose pulp and additive cellulose pulp

The present invention refers to a process for obtaining thermoplastic composite pellets reinforced with cellulose pulp or additive cellulose pulp, cellulose fibers, and/or hydrophilic material from renewable source, and/or natural source material comprising the steps of cellulose pulp dry processing carried out in a binder mill, and/or plastic agglomerator and/or densifier, and preparation of the masterbach comprising the steps of drying the pulp and the thermoplastic materials, preparing the compositions of polymer and cellulose fiber, milling the masterbatch produced, drying the product, extruding the polymer and the masterbatch, and injecting the obtained material.