WO2022174859A1 - Conveying device for a pressing apparatus, and pressing apparatus - Google Patents
Conveying device for a pressing apparatus, and pressing apparatus Download PDFInfo
- Publication number
- WO2022174859A1 WO2022174859A1 PCT/DE2022/100039 DE2022100039W WO2022174859A1 WO 2022174859 A1 WO2022174859 A1 WO 2022174859A1 DE 2022100039 W DE2022100039 W DE 2022100039W WO 2022174859 A1 WO2022174859 A1 WO 2022174859A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- segments
- worm shaft
- conveyor
- pressing
- Prior art date
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000010006 flight Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000010868 animal carcass Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010822 slaughterhouse waste Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/121—Screw constructions
Definitions
- the invention relates to a conveyor device for a device for pressing, in particular in the sense of a conveyor screw for a screw press.
- the invention relates to a device for pressing in the sense of a screw press.
- Screw presses of this type are used to separate free-flowing, liquid or thixotropic components from various substances, solids, organic or inorganic materials by pressing processes.
- So-called colander screw presses have proven particularly useful for separating liquids and, above all, oil-containing components for plant-based products.
- the press chamber which is also called strainer chamber or press chamber, is at least partially geometrically delimited by at least one so-called strainer rod basket.
- the strainer rod baskets are often designed with a cylindrical or hollow-cylindrical geometry and are divided into individual strainer rod fields or strainer fields for receiving and/or holding strainer rods.
- Colander rods or strainer rod baskets of the type mentioned in the introduction are used in the field of devices for squeezing free-flowing or liquid substances from materials or products introduced into the device.
- it can be a squeezing of liquid substances from animal carcasses, slaughterhouse waste or oily fruits, seeds or plants.
- the devices for pressing are drum-like and the strainer bars extend in a longitudinal direction of the drum.
- the pressing material to be processed is also transported in this longitudinal direction. In the area of a drum outlet, the residual substances are discharged from the drum interior almost free of moisture.
- the material to be pressed is transported through the drum using a screw conveyor, which is divided into pressure and transport areas.
- the liquids contained in the input substances are squeezed out by the pressing process between the boundary surfaces of the screw flights of the conveyor screw and the strainer rods.
- the strainer rods are arranged with gap-like distances relative to one another. To ensure that the pressing process runs optimally, the cross-sectional area of the screw flight decreases, starting from the inlet in the direction of the outlet.
- the primary goal of the pressing process is the most complete possible separation of free-flowing and, in particular, oil-containing components and solid components from the pressing material. Furthermore, the goal of the highest possible substance volume flow is striven for. Both objectives are aimed at in the best possible way by constructing the machine elements for applying the pressing forces with maximum performance and by designing the pressing chamber geometrically in a suitable manner.
- Screw presses known from the prior art are equipped with a continuous screw shaft onto which screw elements are pushed, so that a conveyor screw formed from a plurality of screw elements is realized with an internal continuous screw shaft. At least one end of the worm shaft is connected to a press drive, by means of which the worm shaft can be rotated about its longitudinal axis.
- this object is achieved by a conveyor device for a pressing device according to patent claim 1 .
- a further object of the invention is to provide a correspondingly improved device for pressing.
- this object is achieved by a device for pressing according to claim 11 .
- a conveyor device for a device for pressing has a conveyor screw and is characterized in that the conveyor screw has a screw shaft that is segmented in the longitudinal direction.
- the worm shaft segments are connected to one another in such a way that the power transmission between the worm shaft segments required for the rotation of the entire worm shaft is ensured.
- a majority of the worm shaft segments are preferably designed as worm segments.
- the screw segments are designed, for example, as pressure screws, throttle rings, knife rings, mixer rings, feed screws, transition rings or a shaft mount, so that a screw conveyor with different functional areas can be formed. As is already well known from the prior art, this is necessary for the most efficient possible pressing process.
- the screw segments designed as feed screws and the screw segments designed as pressure screws preferably have screw blades on their circumference, with which screw flights with different pitches and different dimensions are formed.
- single- or double-threaded screw threads and both left-handed and right-handed screw threads are possible.
- the worm shaft has at least one worm shaft segment, which is designed as a stub shaft for connecting the worm segments to a press drive, the worm shaft being rotatable about its longitudinal axis with the aid of the press drive.
- the worm shaft has an end ring on the other side, which can be mounted in a device for pressing so as to be rotatable about the longitudinal axis of the worm shaft.
- a worm shaft according to the invention has at least one sealing grooved ring.
- the worm shaft segments of the conveyor device are particularly preferably detachably connected to one another so that the worm shaft can be dismantled into its individual parts (essentially the worm shaft segments) for maintenance and repair purposes or for space-saving transport of the worm shaft.
- the screw shaft segments are at least partially connected to one another by a form fit.
- this can be realized by a bayonet lock.
- the worm shaft segments are connected to one another by a force fit.
- the worm shaft segments are connected to one another by a form fit and a force fit.
- the radial alignment of the worm shaft segments to one another and effective power transmission in the direction of rotation is essentially realized by a form fit, while the force fit connects the worm shaft segments in the axial direction (longitudinal direction of the worm shaft).
- the frictional connection can be realized by screwing the worm shaft segments together and the positive connection can be realized by the worm shaft segments being designed like a plug-in system in the connection area.
- a pair of molds consisting of a positive mold and a negative mold should preferably be selected for the form fit, which enables large forces to be transmitted in the direction of rotation from worm shaft segment to worm shaft segment.
- Such pairs of shapes can be realized, for example, by a polygonal connection (P3G, P4C and similar), a keyway connection, a multi-tooth connection, a polygonal connection (e.g. square, hexagonal and similar) or pinning (axial or radial).
- a polygonal connection P3G, P4C and similar
- a keyway connection e.g. a keyway connection
- a multi-tooth connection e.g. square, hexagonal and similar
- pinning axial or radial
- frictional connections can also be realized, for example, by means of an interference fit or conical connections.
- the worm shaft segments are connected to one another exclusively or in addition to the non-positive and/or positive connection by a material bond.
- a cohesive connection of the screw shaft segments is particularly useful when disassembly of the screw conveyor is not absolutely necessary, but segmentation is advantageous for transporting the screw conveyor, for example to the location of the screw press.
- At least the screw shaft segments designed as screw segments are sealed from one another with the aid of sealing elements, so that pressing material is prevented from penetrating into the gap located between the respective press segments.
- the seal in embodiments of the invention can also serve to allow cooling or heating means to escape into the pressing chamber, which are conducted through one or more corresponding channels in the screw segments.
- water vapor is usually used as the heating medium, while cooling water is usually used as the coolant.
- the worm shaft segments are made of a suitable base material (e.g. steel, in particular C15, S355J2G3, 16MnCr5, 42CrMo4 or 50CrMo4), so that the worm shaft has the necessary strength and stability.
- a suitable base material e.g. steel, in particular C15, S355J2G3, 16MnCr5, 42CrMo4 or 50CrMo4
- At least the functional surfaces of the worm shaft segments are hardened or finished by means of build-up welding in order to reduce wear that occurs.
- the hardened surfaces are case hardened, vacuum hardened, induction hardened, flame hardened or case hardened.
- a screw press shaft according to the invention can be installed in a screw press with either single or multiple bearings.
- segmented screw press shaft makes it possible to save material with the same stability compared to conventional continuous screw press shafts in connection with screw segments mounted thereon.
- a pressing device according to the invention has at least one conveyor device according to the invention.
- Figure 1 A side view of a worm shaft according to the invention
- FIG. 2 A plan view of the ferrule of the invention shown in FIG.
- Figure 3 A section through the worm shaft shown in Figures 1 and 2
- Figure 4 A detailed view of a section of the connection area of
- FIG. 5 A side view of a screw segment according to the invention
- FIG. 6 A plan view of the connection area of a worm segment of a worm shaft according to the invention.
- FIG. 7 A section through a screw segment of a screw according to the invention
- FIG. 1 shows a side view of an embodiment according to the invention of a worm shaft (2) of the conveyor device (1) for a pressing device designed as a worm press.
- the conveyor device (1) has a segmented worm shaft (2), the worm shaft segments (3) being designed as worm segments (4), shaft stubs (6) and end rings (8).
- the stub shaft (6) arranged on a first side of the worm shaft (2) is used to connect the worm shaft (2) to the press drive of a pressing device.
- the stub shaft (6) is connected to a grooved sealing ring (7), which serves to seal the pressing chamber in a device for pressing.
- the screw segments (4) are designed as feed screws (4a), pressure screws (4b) and throttle rings (4c).
- the feed screws (4a) serve to feed material that has been filled into the pressing chamber of a device for pressing into the area of the pressure screws (4b) and throttle rings (4c).
- the alternating arrangement of pressure screws (4b) and throttle rings (4c) of different configurations enables efficient pressing of the material to be pressed.
- the screw conveyors (4a) and pressure screws (4b) have external screw blades (5) which are used to form screw flights in the pressing chamber of a pressing device.
- the diameters of the throttle rings (4c) at the points with the largest diameter are about 190 to 450 mm and the diameters of the conveyor screws (4a) and the pressure screws (4c) without screw blades (5) are about 125 to 390 mm.
- the length of the screw segments (4) is between approximately 100 mm and 400 mm.
- the diameters of the throttle rings (4c) at the points with the largest diameter are about 250 to 440 mm and the diameters of the conveyor screws (4a) and the pressure screws (4c) without screw blades (5) are about 200 to 350 mm .
- the length of the screw segments (4) is between about 100 mm and 300 mm.
- the dimensions of the components essentially depend on the size of the pressing device in which the corresponding conveyor device is to be installed.
- the number of screw segments is also variable.
- FIG. 2 shows a view of the end ring (8) in the longitudinal direction of the worm shaft (2).
- the end ring (8) has four equally spaced openings (15) arranged on a circumference.
- Fastening means (11), not shown here, such as screws, for example, can be inserted into these openings (15) for connection to the adjacent screw segment (4).
- FIG. 3 shows a section through the embodiment shown in FIGS. 1 and 2 of a worm shaft (2) according to the invention along the axis A-A shown in FIG.
- the screw elements (4) have a cylindrical cavity (10) in the area of the longitudinal axis of the screw shaft (2).
- This cavity (10) reduces the weight of the worm shaft (2) and can also be used as a duct for cooling or heating means if this is connected to an appropriate circuit.
- the end ring (8) has an opening for connecting the cavity (10) to a circuit for a cooling or heating medium, which opening is arranged corresponding to the cavity (10).
- the screw segments (4) each have two connecting areas (12), the connecting areas (12) of screw segments (4) connected to one another being designed on the opposite sides to correspond to one another in the manner of a plug-in system.
- the connecting area (12) of a first screw segment (4) is designed as a positive mold and the connecting area (12) of the corresponding second screw segment (4) is designed as a negative mold (14), so that the connecting area (12) of the first screw segment (4) fits into the connecting area of the second screw segment (4) can be plugged.
- a plurality of blind holes (16) are arranged in the area of the negative mold (14), which are arranged opposite openings (15) that extend through the second screw segment (4) with the positive mold (13), so that fastening means (11 ) can engage through the openings (15) in the blind holes (16).
- the blind holes (16) are preferably provided with an internal thread and the openings (15) have a further first area and a narrower second area, so that a contact shoulder is formed in the openings (15), so that fastening means (11) in the form of screws can be used to Attachment of the screw segments (4) can be used.
- the grooved sealing ring (7) is fastened to the shaft stub (6) with the aid of fastening means (11) in the form of screws.
- FIG. 5 shows a side view of a screw segment (4) designed as a pressure screw (4c). On the left side, the screw segment (4) has a positive mold (13) in the connection area (12), the negative mold (14) arranged on the right side is not visible.
- FIG. 6 shows a view of the connecting area (12) of a screw segment (4) designed as a negative mold (14).
- the negative mold (14) is implemented as a P3G polygonal recess.
- FIG. 7 shows a section through a screw segment (4) along the axis A-A shown in FIG.
- the first connection area (12) designed as a positive mold (13) and the second connection area (12) designed as a negative mold (14) on the opposite side of the screw segment (4) can be seen.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112022001107.6T DE112022001107A5 (en) | 2021-02-18 | 2022-01-17 | Conveyor device for a pressing device and pressing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021103824.3A DE102021103824A1 (en) | 2021-02-18 | 2021-02-18 | Conveying device for a pressing device and pressing device |
DE102021103824.3 | 2021-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022174859A1 true WO2022174859A1 (en) | 2022-08-25 |
Family
ID=80113433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2022/100039 WO2022174859A1 (en) | 2021-02-18 | 2022-01-17 | Conveying device for a pressing apparatus, and pressing apparatus |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102021103824A1 (en) |
WO (1) | WO2022174859A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149736A (en) * | 1933-10-21 | 1939-03-07 | Stanley Hiller Ltd | Apparatus and method for expressing fluid |
US3672641A (en) * | 1970-09-14 | 1972-06-27 | French Oil Mill Machinery | Apparatus for removing liquids from elastomeric polymers |
GB2115713A (en) * | 1982-03-01 | 1983-09-14 | Licencia Talalmanyokat | Modular screw press |
US20040182260A1 (en) * | 2003-03-19 | 2004-09-23 | David Miles | Rendering screw presses and methods of operating the same |
US20130199383A1 (en) * | 2012-02-06 | 2013-08-08 | Robert H. Horton | High compression shaft configuration and related method for screw press systems used in rendering applications |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT380829B (en) | 1980-10-22 | 1986-07-10 | Licencia Talalmanyokat | Screw press according to the modular principle |
US4691818A (en) | 1986-01-27 | 1987-09-08 | The Laitram Corp. | Concealed drive coupling for use with modular screw conveyor |
DE3806146A1 (en) | 1988-02-26 | 1989-09-07 | Poettinger Alois Landmasch | SCREW PRESS |
DE4444370A1 (en) | 1994-12-14 | 1996-06-20 | Max Gutknecht | Device for the thermal, mechanical, chemical and / or physical treatment of a product |
DE202005005212U1 (en) | 2005-04-02 | 2006-08-10 | Ect Gmbh | Extruder advancing worm comprises at least two worm sections with a hub and a screw shaped spiral |
DE102013010888B4 (en) | 2013-07-01 | 2024-04-25 | Metzger & Sohn Anlagenbau und Umwelttechnik GmbH | Auger |
CN205112458U (en) | 2015-11-26 | 2016-03-30 | 松阳县松耕农业开发有限公司 | A press spiral shell device for tea -seed oil system of pressing |
JP6505308B1 (en) | 2018-12-27 | 2019-04-24 | 川崎重工業株式会社 | Method of assembling screw conveyor auger |
CN212358495U (en) | 2020-05-06 | 2021-01-15 | 深圳市安邦环境科技有限公司 | Screw shaft and crushing extrusion device |
-
2021
- 2021-02-18 DE DE102021103824.3A patent/DE102021103824A1/en not_active Withdrawn
-
2022
- 2022-01-17 DE DE112022001107.6T patent/DE112022001107A5/en active Pending
- 2022-01-17 WO PCT/DE2022/100039 patent/WO2022174859A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149736A (en) * | 1933-10-21 | 1939-03-07 | Stanley Hiller Ltd | Apparatus and method for expressing fluid |
US3672641A (en) * | 1970-09-14 | 1972-06-27 | French Oil Mill Machinery | Apparatus for removing liquids from elastomeric polymers |
GB2115713A (en) * | 1982-03-01 | 1983-09-14 | Licencia Talalmanyokat | Modular screw press |
US20040182260A1 (en) * | 2003-03-19 | 2004-09-23 | David Miles | Rendering screw presses and methods of operating the same |
US20130199383A1 (en) * | 2012-02-06 | 2013-08-08 | Robert H. Horton | High compression shaft configuration and related method for screw press systems used in rendering applications |
Also Published As
Publication number | Publication date |
---|---|
DE102021103824A1 (en) | 2022-08-18 |
DE112022001107A5 (en) | 2023-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE602005001538T2 (en) | Device for solid / liquid separation | |
EP3019276A1 (en) | Stirred ball mill having axial ducts | |
DE69415673T2 (en) | CLUTCH ROTOR BODY ON AXLE PIN | |
WO2019076656A1 (en) | Mixing and kneading machine with receiving areas for kneading elements, said receiving areas being distributed over the inner circumferential surface of the housing in a non-uniform manner | |
DE2225231C3 (en) | Screw press | |
EP3581374A1 (en) | Stripping member for stripping from outside of a hollow drum of a device for separating materials of varying flowability that are mixed together and device comprising such a stripping element | |
WO2022174859A1 (en) | Conveying device for a pressing apparatus, and pressing apparatus | |
DE102018009685B3 (en) | cutter | |
DE4001501C2 (en) | ||
EP2946904B1 (en) | Device and method for degassing material to be processed | |
EP3831588A1 (en) | Device for pressing | |
EP3020974B1 (en) | System for conveying viscous media, method of operating such a system and corresponding transport unit | |
EP3838577B1 (en) | Method and device for pressing | |
EP1502724B1 (en) | Filter for processing machines, specially extruders | |
DE102011122698B4 (en) | Powerful shredding unit for, in particular, highly viscous and/or solid materials to be conveyed | |
DE19601128C2 (en) | Screw press | |
DE1803266C3 (en) | Device for removing liquids from elastomeric or polymeric material | |
EP3282086B1 (en) | Pump, in particular gear pump, for conveying of additives | |
DE102022122711B3 (en) | Shredding machine with a multi-part housing | |
DE102004040720B4 (en) | Cavity Pump | |
EP0356914A2 (en) | Apparatus for attaching a strand-like drainage element in a press | |
DE102016123919A1 (en) | Device for processing food products | |
WO2009039881A1 (en) | Gearwheel pump with split pump housing | |
DE249083C (en) | ||
WO2022028914A1 (en) | Dewatering press |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22700456 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112022001107 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112022001107 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22700456 Country of ref document: EP Kind code of ref document: A1 |