Valmet Technologies, Inc. Patente

The invention relates to a system for pyrolyzing pyrolyzable material (PM) to produce pyrolytic vapours (PV). The system comprises a pyrolysis reactor (100) for pyrolyzing pyrolyzable material (PM), a first particle separator (200) for separating the pyrolytic vapours (PV) and a first solid material fraction (SF1) from a pyrolysis product feed, and a particulate material heater (300) for heating the first solid material fraction. The particulate material heater (300) comprises second distributors (320) for feeding second fluidizing gas (Gas2) into the particulate material heater (300) to fluidize particulate material within the particulate material heater (300) and an electric heater (310) configured to electrically heat particulate material arranged in the particulate material heater (300). The invention relates also to a method for pyrolyzing pyrolyzable material (PM) to produce pyrolytic vapours (PV). The method comprises at a first period, heating the particulate material arranged in the particulate material heater (300) using an electrical heater (310), guiding heated particulate material from the particulate material heater (300) into the pyrolysis reactor (100).

A method for manufacturing micro fibrillated cellulose from a cellulosic raw material comprises treating the cellulosic raw material by a steam explosion at a temperature of 170°C to 215°C and thereafter refining the treated cellulosic raw material.

In the presented solution the boiler (1) comprises a furnace (2). The furnace (2) comprises at least two side walls (4), at least two end walls (3), a roof (5), and a bottom (6). A distance between the at least two side walls (4) defines a width (W) of the furnace, a distance between the at least two end walls (3) defines a depth (D) of the furnace, and a direction between the at least two end (3) walls is a depth direction (Dd). The arrangement further comprises at least one beam (7) extending in the depth direction (Dd). The beam (7) is positioned under the bottom (6) for supporting the bottom, and the beam (7) is also positioned between the at least two side walls (4) at a distance from each side wall (4). The ends of the beam (7) extend under the vertical portions (3a) of the at least two end walls (3). The arrangement also comprises at least one rod (8) between each end of the beam (7) and the corresponding vertical portion (3a) of the side wall. The rods (8) are substantially vertical, and the rods (8) are attached to the end of the at least one beam (7) and to the corresponding vertical portion (3a) of the side wall. Thereby the rods (8) are arranged to transfer load from the beam (7) to the vertical portions (3a) of the end walls.

The invention relates to an adhesive application device (50) for a turn-up system of a reeler of a fiber web production line, which comprises a melter (40) and an adhesive applicator (20), which adhesive applicator (20) comprises nozzles (31), in which adhesive application device (50) the melter (40) is connected to the adhesive applicator (20) via a feed channel (42) for providing adhesive to the nozzles (31) of the adhesive applicator (20). The melter (40) is a hotmelt adhesive melter (40). The adhesive applicator (20) is a high pressure hotmelt adhesive applicator (20) comprising an applicator head (21), a high-pressure pump unit (22), a linear actuator (23) and a linear actuator mover (24), and the high-pressure pump unit (22) is driven by the linear actuator (23) and the linear actuator mover (24).

A fabric edge support device (2) for use in connection with an edge (100) of a forming fabric (10) of a fiber web machine (1) fourdrinier section, the fabric edge support device (2) comprising- a bar (20), which comprises a cross sectionally a curved surface to provide an edge support surface (201) extending in a machine direction (MD) for the forming fabric (10), the bar (20) is provided to be set at a distance downstream from a headbox (12) to bend the forming fabric edge (100) upwards to prevent fiber stock (FS) to flow over the edge (100) of the forming fabric (10) when installed,- a water channel (21) arranged in operational connection with the edge support surface (201) so as to provide water (W) stream on the edge support surface (201) when in use,- a holder (22) for supporting the bar (20) and setting the position of the bar (20), the holder (22) comprising attachment means (224) for attaching the fabric edge support device (2) to a fiber web machine (1),- the fabric edge support device (2) comprises a fabric guide (23) to support the forming fabric (10) during a fabric change.

A measurement system for monitoring a gap adjustment mechanism of a processing device. The processing device comprises oppositely positioned processing elements with a gap between them. The measurement system comprises a first measuring device to measure information describing a position of that processing element which is moved by at least one actuating unit of the gap adjustment mechanism for adjusting the size of the gap, and at least one second measuring device to measure information describing a position of the at least one actuating unit. The measurement system further comprises a data processing device configurable to determine the condition of the gap adjustment mechanism based on the information describing the position of the processing element and the information describing the position of the at least one actuating unit. Additionally, a method for monitoring a condition of a gap adjustment mechanism of a processing device.

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The invention relates to a method for applying at least one substance layer in form of foam onto a moving fiber web (W) directly or indirectly by foam application through at least one opening of at least one nozzle opening (16) of a nozzle tip (15) of an application device (C10; C20; C30) as a foam flow (C). In the method an angle (A), in which the foam flow (C) through the nozzle opening (16) meets a target surface, is less than 90 degrees, advantageously 30-85 degrees, which target surface is in direct application the surface of the fiber web and in indirect application the surface of a roll, or of a belt or of a wire or of a felt or of like. The invention also relates to a system for applying a substance layer onto a moving fiber web (W) directly or indirectly by foam application comprising an application device (C10; C20; C30) comprising at least one nozzle tip (15) with at least one nozzle opening (16) for a foam flow (C). The system comprises means (17; 18; 19,20) configured to set/adjust an angle (A), in which the foam flow (C) through the nozzle opening (16) meets a target surface to less than 90 degrees, advantageously 30-85 degrees, which target surface is in direct application the surface of the fiber web and in indirect application the surface of a roll or of a belt or of a wire or of a felt or of like.

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