GAS DISPERSER FOR A SPRAY DRYER AND METHODS

    公开(公告)号:US20210293477A1

    公开(公告)日:2021-09-23

    申请号:US17254801

    申请日:2018-06-29

    Abstract: In the gas disperser (3), a flow conditioning device (5, 6) is located in the inlet duct section (32). The flow conditioning device comprises a hole plate (5) and a flow straightener (6) positioned in parallel with and at a distance (h) in the axial direction (axd) from the downstream side of the hole plate (5). The hole plate (5) has a predefined hole plate thickness (tp) in the axial direction (axd) and each flow straightener (6) has a predefined flow straightener length (Is) in the axial direction (axd), the flow straightener length (Is) being substantially larger than the hole plate thickness (tp).

    A DRYER AND A METHOD FOR DRYING A LIQUID FEED INTO A POWDER

    公开(公告)号:US20210262730A1

    公开(公告)日:2021-08-26

    申请号:US17255360

    申请日:2018-06-28

    Abstract: A dryer for drying a liquid feed into a powder comprises a drying chamber defined by a chamber wall including a bottom wall portion; a feed inlet for receiving the liquid feed and dispersing particulate feed into the drying chamber; at least one air inlet for entering drying air into the drying chamber; and at least one drying chamber outlet for dried powder and/or spend drying air from the drying chamber. The feed inlet comprises a decanter centrifuge with an axis of rotation; a first axial end; a second axial end; and a solid phase outlet at the first axial end.

    Screw press apparatus including an improved CIP arrangement and method of cleaning the apparatus

    公开(公告)号:US10850465B2

    公开(公告)日:2020-12-01

    申请号:US16307603

    申请日:2017-06-07

    Abstract: The invention relates to a screw press apparatus (1) comprising an outer casing (2) surrounding a screening tube (6a) with a plurality of liquid discharge holes, a slurry inlet port (3) at one end of the screening tube and a solids discharge port (4) at an opposite end of the screening tube, the screening tube housing an axially located auger (5), the outer casing (2) having a first opening in fluid communication with the slurry inlet port (3), a second opening in fluid communication with the solids discharge port (4), and a third opening (8) in fluid communication with the liquid discharge holes of the screening tube (6), a cleaning device (20) located between the outer casing and the screening tube, a device (10) for axially moving the cleaning device. The cleaning device (20) has a rigid co-axial liquid supply pipe (30) having at least one washing pipe (21, 22, 23, 24) at least partially surrounding the screening tube (6), each at least one washing pipe (21, 22, 23, 24) containing a plurality of nozzles (211, 221, 231, 241) facing the screening tube (6a). The screw press apparatus is especially suited for processing protein containing slurries, and in another aspect the invention relates to a method of producing a gluten product using the screw press apparatus.

    Sanitary diverter valve, drying system including an improved valve assembly comprising such a valve, and method of cleaning the system

    公开(公告)号:US10428961B2

    公开(公告)日:2019-10-01

    申请号:US16309953

    申请日:2016-06-20

    Inventor: Morten Gregersen

    Abstract: The sanitary diverter valve (70) is for use in a drying system or powder conveying system including conveying lines and a purge line of a purge arrangement. The sanitary diverter valve comprises a valve housing (71) with a number of openings (72, 73, 74) configured to be connected to respective lines of the system. The valve housing (71) is substantially cylindrical and includes a first opening (72), a second opening (73) and a third opening (74). Furthermore, the diverter valve (70) comprises a rotatable diversion member (75) provided with a flow channel (76) having a first end (76a) and a second end (76b), an open space (77) being defined between the valve housing (71) and the rotatable diversion member (75). The rotatable diversion member (75) is configured to be rotated between a first position and a second position to allow that fluid communication is selectively provided between the first opening (72) and the third opening (74) and between the first opening (72) and the second opening (73) of the valve housing (71).

    EXTERNAL MIXING PRESSURIZED TWO-FLUID NOZZLE AND A SPRAY DRYING METHOD

    公开(公告)号:US20190255455A9

    公开(公告)日:2019-08-22

    申请号:US15954769

    申请日:2018-04-17

    Abstract: Disclosed herein is an external mixing pressurized two-fluid nozzle for atomising a liquid by means of liquid pressure and gas, comprising an inner feed liquid pipe (1) extending axially between an upstream end and a downstream end, having a feed liquid conduit (2), a feed liquid inlet (3) positioned at the upstream end and a feed orifice (4) positioned at the downstream end, and a co-axial first gas pipe (5) extending radially outside the inner feed liquid pipe (1) and forming a first gas conduit (6) between the first gas pipe (5) and the inner feed liquid pipe (1), the first gas pipe (5) having a gas outlet slit (7) positioned at the downstream end. Said external mixing two-fluid nozzle provides a swirling motion of the gas, which combined with a pressurized feed liquid enables the production of spray dried powder at industrially applicable capacities with low energy consumption and a small particle size.

    Drying system with improved energy efficiency and capacity control

    公开(公告)号:US11085696B2

    公开(公告)日:2021-08-10

    申请号:US16461485

    申请日:2016-11-18

    Abstract: The invention relates to a drying system (1) comprising a drying plant (2) and a heat pump assembly (3) comprising one or more heat pumps operating with a primary fluid and being connected to at least two heat sources and at least one heat sink by means of a number of heat exchangers in a fluid network, in which a secondary fluid circulates. The heat sources may comprise dew point dehumidification in at least one heat exchanger (41) of process gas entering the drying plant; and recovery in another heat exchanger (42) of latent and/or sensible heat from exhaust gas leaving the drying plant. The heat sink may comprise pre-heating in a heat exchanger (51) of process gas used within the plant. Further, a method of integrating a heat pump assembly into a drying system is devised. By the invention, it is possible to increase the capacity of the drying plant while reducing the specific energy demand.

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