WO2023072814A1 - Separatorvorrichtung zur entwässerung feuchter massen - Google Patents
Separatorvorrichtung zur entwässerung feuchter massen Download PDFInfo
- Publication number
- WO2023072814A1 WO2023072814A1 PCT/EP2022/079549 EP2022079549W WO2023072814A1 WO 2023072814 A1 WO2023072814 A1 WO 2023072814A1 EP 2022079549 W EP2022079549 W EP 2022079549W WO 2023072814 A1 WO2023072814 A1 WO 2023072814A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- drive shaft
- separator device
- outlet
- screw
- Prior art date
Links
- 238000012216 screening Methods 0.000 claims abstract description 161
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 59
- 239000007787 solid Substances 0.000 claims abstract description 32
- 238000007493 shaping process Methods 0.000 description 51
- 238000011161 development Methods 0.000 description 29
- 230000018109 developmental process Effects 0.000 description 29
- 230000007423 decrease Effects 0.000 description 24
- 238000000465 moulding Methods 0.000 description 19
- 230000003247 decreasing effect Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 210000003746 feather Anatomy 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
- B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
- B01D29/828—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using screws
Definitions
- the invention relates to a separator device for dewatering a moist mass, the separator device having a drive shaft which is mounted rotatably about a drive axis of rotation and extends in an axial direction between an upstream shaft end and a downstream shaft end, a screw conveyor which is connected to the drive shaft and is designed to convey the mass in a conveying direction from an inlet located upstream to an outlet located downstream opposite the inlet, a screening device which encloses the conveyor screw, the screening device being designed to separate liquid from the solids of the mass, and the mass, in particular the solid of the Mass to be guided from the inlet to the outlet in the conveying direction, and a drive unit which is coupled to drive the drive shaft with the drive shaft, in particular with the downstream end of the drive shaft.
- this object is achieved by a separator device according to claim 1 .
- the separator device is designed for dewatering moist masses.
- a moist mass is in particular a suspension containing solids.
- a wet mass includes in particular solids and liquid.
- the separator device In order to drain the moist mass, the separator device has a drive shaft which is mounted so as to be rotatable about a drive axis of rotation.
- the drive shaft extends in an axial direction between an upstream shaft end and a downstream shaft end.
- the drive axis of rotation extends essentially along the axial direction.
- the separator device has a screw conveyor.
- the auger is connected to the drive shaft.
- the auger encloses the drive shaft at least partially.
- the drive shaft preferably extends through the auger.
- the screw conveyor is designed to convey the mass to be dewatered in a conveying direction from an inlet located upstream to an outlet located downstream opposite the inlet.
- the mass to be dewatered is increasingly dewatered in the conveying direction, ie liquid is separated from the mass to be dewatered, so that the dry matter content of the mass to be dewatered increases from the inlet to the outlet.
- the dry matter content of the mass to be dewatered is therefore greater at the outlet than at the inlet.
- the degree of dewatering essentially depends on the conveying pressure generated by the conveying screw. The higher the delivery pressure, the higher the dry matter content of the mass to be dewatered at the outlet.
- the dry matter content is in particular the ratio of a mass of dry matter in relation to the total mass, which includes the mass of dry matter and the mass of liquid.
- the screw conveyor is conical or cylindrical.
- the auger has an auger cross-sectional area that decreases or is constant from the upstream inlet to the downstream outlet.
- the conveyor screw has a screw blade, in particular a conical screw blade, with a screw blade height that varies or is constant in the conveying direction.
- the screw blade height decreases from the upstream inlet to the downstream outlet.
- the screw blade has an outer screw blade radius and an inner screw blade radius that is smaller than the outer screw blade radius, with the outer screw blade radius decreasing in the conveying direction and the inner screw blade radius being constant, or the outer screw blade radius decreasing in the conveying direction and the inner screw blade radius decreasing, or the outer screw blade radius and the inner screw blade radius in the conveying direction are constant.
- the separator device has a screening device which encloses the conveyor screw.
- the auger extends within the screening device.
- the screw conveyor in particular the screw blade, is in close contact with the screening device, in particular the inner surface of the screen.
- the screw conveyor is rotatably arranged within the screening device.
- the screening device is preferably arranged in a stationary manner in relation to the screw conveyor. It can be preferred that the screening device is mounted in a floating manner. A floating screen device can move in the radial direction, for example on guide rails, but is not arranged to be displaceable in the axial direction.
- the screening device is doubly mounted.
- the screening device is designed to separate the liquid from the moist mass, i.e. to dewater it. Furthermore, the screening device is designed to guide the moist mass, in particular solids of the moist mass, in the conveying direction from the inlet to the outlet.
- the screening device of the separator device is conical, in the shape of a truncated cone, in particular in the shape of a hollow cone.
- the screening device comprises a screen wall made of a bent or rolled metal sheet or a bent or rolled steel plate, in which/s outlet openings have been introduced as a screen pattern.
- the outlet openings are introduced, for example, by means of laser cutting.
- the screen wall is rolled conically or cylindrically and/or conically or cylindrically curved screen wall.
- the screen wall has a weld seam which fixes the conically or cylindrically rolled and/or conically or cylindrically bent screen wall in a conical or cylindrical shape.
- the sieve device for separating the liquid from the moist mass has a cone-shaped and liquid-permeable sieve wall with outlet openings located between an inner sieve surface of the sieve wall, which faces the conveyor screw, and an outer sieve surface, which is radially outward in relation to the inner sieve surface Screen wall facing away from the auger extend.
- the screening device has an annular screen cross-sectional area and/or a screen inner diameter and/or a screen outer diameter that decreases from the upstream inlet to the downstream outlet or is/are constant between the upstream inlet and the downstream outlet.
- the separator device preferably has a screen device housing, an inlet chamber and/or an outlet chamber.
- the screening device is arranged within the screening device housing.
- the screening device housing has the inlet and the outlet and the screening device is arranged within the screening device housing in such a way that the screening device fluidically connects the inlet and the outlet.
- the screening device housing preferably has a drain opening through which the separated liquid can be discharged from the screening device housing.
- the separator device has a suction device which is fluidically connected to the outflow opening.
- the suction device is preferably arranged outside the screening device and is fluidically connected to the screening device downstream of the inlet.
- the suction device is designed to separate the liquid from the moist mass.
- the suction device sucks the liquid through the outlet openings of the liquid-permeable screen wall away.
- the suction device can be fluidically connected to a liquid tank into which the liquid is sucked.
- a desired suction pressure can be set in the screening device by means of the suction device, with which the liquid is sucked out of the screening device.
- the suction device can be used to set the desired suction pressure as a function of a dry matter content desired at the outlet and/or the moisture content of the moist mass to be dewatered provided at the inlet and/or the viscosity of the moist mass to be dewatered provided at the inlet. For example, if a high dry matter content of the mass at the outlet is desired or if the moist mass provided at the inlet is particularly moist, the suction pressure can be set correspondingly higher.
- This preferred embodiment of the separator device is based on the finding of the inventors that no feed pump is required, which has to feed the moist mass to be drained to the screening device. There is therefore no need for a feed pump, which must be designed to feed both liquid and solids to the screening device. Since only the liquid separated from the moist mass to be drained is sucked out by the sieve device in the radial direction, the suction device advantageously only has to be designed to suck out liquid and, if necessary, to convey it. The suction device is therefore exposed to significantly less wear in comparison to the feed pumps of the known systems.
- the suction device is designed to suck in the liquid separated from the moist mass and/or the moist mass to be provided at the inlet with a negative pressure.
- the negative pressure is in particular a pressure that is lower than the atmospheric pressure that prevails in particular at the operating site of the separator device.
- the suction device sucks off the liquid with a pressure that is lower than the pressure present at the inlet and/or outlet.
- the suction device is designed to generate such a negative pressure that the moist mass to be provided at the inlet can also be provided from a pit or the like that is significantly lower than the separator device.
- a separator device designed in this way has the advantage that the moist mass provided at the inlet is sucked in particularly well. Furthermore, this development has the advantage that the moist mass can also be sucked out of pits that are deeper than the separator device.
- the inlet chamber is arranged at the inlet, with the inlet chamber being designed to receive the moist mass to be dewatered and make it available at the inlet.
- the outlet chamber is arranged at the outlet, with the outlet chamber being designed to receive the mass that is provided at the outlet and has been separated from the liquid.
- the mass that is provided in the inlet chamber at the inlet has a higher humidity than the mass that is provided to the outlet chamber at the outlet.
- the separator device has a shaping device which is arranged downstream of the outlet and which encloses the drive shaft.
- the shaping device is arranged to be displaceable in the axial direction.
- the shaping device is particularly preferably arranged such that it can be displaced in the axial direction relative to the outlet.
- the molding device has a variable inner diameter that can be varied between a minimum inner diameter and a maximum inner diameter that is larger than the minimum inner diameter.
- the minimum inside diameter preferably corresponds to an outside diameter of the auger shaft.
- the molding device can be varied in particular between a closed position, in which the outlet is closed, and an open position, in which the outlet is open. In the closed position, the minimum inner diameter corresponds to the outer diameter of the auger shaft, and in the open position, the inner diameter of the shaping device is larger than the minimum inner diameter.
- the molding device comprises a ring unit.
- the ring unit can be designed as an elastic one-piece ring, in particular as a one-piece rubber ring.
- the molding device has a molding device flange to which the ring unit is attached.
- the mold flange has a cylindrical mold flange portion.
- the outlet is designed as a flange, it being possible for the outlet designed as a flange to have a cylindrical outlet section.
- the cylindrical mold flange portion is movably supported on the cylindrical outlet portion.
- the separator device preferably has a shaping device adjustment unit, which is designed to shift the shaping device in the axial direction relative to the screening device.
- the position of the shaping device in the axial direction relative to the screening device is fixed once by shifting the shaping device.
- the separator device is designed to displace the shaping device in the axial direction relative to the screening device during operation.
- the shaping device adjustment unit is designed to displace the shaping device in the axial direction relative to the screening device during operation of the separator device.
- the forming device can be displaced axially with respect to the screening device depending on the desired degree of dry matter content of the dewatered mass at the outlet and/or the moisture of the wet mass to be dewatered at the inlet and/or the viscosity of the wet mass to be dewatered at the inlet.
- a desired delivery pressure can be set in the sieve device by means of the shaping device, with which the liquid is delivered through the sieve device.
- the shaping device can be used to shift the desired delivery pressure in the axial direction depending on a dry matter content desired at the outlet and/or the moisture content of the moist mass to be dewatered provided at the inlet and/or the viscosity of the moist mass to be dewatered provided at the inlet. If, for example, a high dry matter content of the mass at the outlet is desired or if the moist mass provided at the inlet is particularly moist, the shaping device can be arranged at a correspondingly greater distance from the outlet.
- the invention is based on the finding that known solutions have solids flaps which close the outlet by means of a complex and space-consuming mechanism comprising a drive unit, lever and possibly weights and open at a certain delivery pressure. According to the inventors, such conventional solutions are maintenance-intensive in comparison to the molding device according to the invention. Due to the space-saving design of the molding device according to the invention and the shorter maintenance intervals, an arrangement of the drive unit on the side of the outlet is advantageous according to the invention. In particular because a dewatered moist mass emerges on the outlet side, so that the drive unit does not have to be sealed separately against the possible ingress of liquid, as is the case with the known solutions in which the drive unit is arranged on the inlet side. In this respect, too, the separator device according to the invention requires less maintenance and is more cost-effective than known solutions.
- the separator device comprises a drive unit which is coupled, in particular mechanically coupled, to the downstream shaft end of the drive shaft in order to drive the drive shaft.
- the drive unit is mechanically coupled to the drive shaft in the area of the downstream shaft end without a seal.
- Seal-free in the present case means in particular that no seal is provided which is designed to prevent liquid from entering the drive unit.
- the drive shaft is coupled to the drive unit in such a way that the drive shaft is designed as a tension rod.
- Such a separator device has various advantages. Due to the drive shaft designed as a tension rod, the drive shaft can be made thin compared to known solutions. In particular, the drive shaft designed as a tension rod can be designed to be flexible. In particular, the design of the drive shaft as a tension rod means that the tolerance requirements are significantly lower. This is because the drive shaft, which is designed as a tension rod, easily compensates for angle errors caused by manufacturing and/or assembly.
- the invention is based on the finding that the conveyor screw rests tightly against the screening device even with significantly lower manufacturing accuracy compared to known solutions. Furthermore, the invention is based on the finding that the arrangement of the drive shaft as a pull rod enables the conveyor screw to be centered independently in relation to the screening device.
- the configuration of the separator device according to the invention enables the drive unit to be arranged on the side of the outlet. This eliminates the need for a seal which is designed to prevent the liquid from entering the mass to be dewatered into the drive unit. Since such seals wear out over time, the arrangement of the drive unit on the outlet side results in a separator device with significantly less wear and tear than in the known solutions. Thus, with the separator device according to the invention, significantly less maintenance and repair work is required in comparison to the known solutions. Further decreases through this Arrangement of the drive unit on the outlet side significantly increases the probability of failure of the separator device due to the ingress of liquid into the drive unit.
- the drive shaft is designed as a solid shaft and/or the screw conveyor is designed as hollow.
- the drive shaft extends inside the auger.
- the drive shaft preferably has an outside diameter that is smaller than the inside diameter of the conveyor screw designed as a hollow shaft.
- the drive shaft extends inside the auger at a distance from the inner wall of the auger. This has the advantage that the drive shaft can also compensate for larger angle errors with the screw conveyor. Furthermore, this has the advantage that the drive shaft can be mounted more easily on the auger and only the upstream shaft end of the drive shaft and the upstream end of the auger are in contact with one another.
- the drive shaft is designed to be flexible and the screw conveyor is designed to be rigid compared to the drive shaft.
- the drive shaft has a lower area moment of inertia than the screw conveyor.
- the drive shaft has a lower flexural rigidity and/or a lower torsional rigidity in comparison to the conveyor screw.
- the comparatively rigid conveyor screw of this preferred development of the separator device enables a particularly advantageous pressing effect for dewatering the mass to be dewatered.
- the comparatively flexible drive shaft compensates for possible angle errors.
- this preferred embodiment enables the separator device to be manufactured in a less narrow tolerance range without the pressing effect of the conveyor screw being reduced by a reduced conveyor pressure due to leakage.
- the drive shaft is designed in several parts.
- the multi-part drive shaft has a first part-shaft and a second part-shaft. Provision is made for the first partial shaft to be mounted in the drive unit in a rotatable and drivable manner.
- the second partial shaft is coupled to the screw conveyor and coupled to the auger at an upstream end.
- the first part-shaft and the second part-shaft and the second part-shaft and the screw conveyor are coupled to one another in a torque-resistant manner and/or in a manner that transmits axial forces.
- the first partial shaft and the second partial shaft can be coupled to one another, for example, with a screw and plug connection.
- the first partial shaft has a through hole in the axial direction, through which a screw is passed
- the second partial shaft has a threaded hole in the axial direction, into which the screw is screwed.
- the first partial shaft has a shaft shoulder and the second partial shaft has a receiving section in which the shaft shoulder of the first partial shaft can be received.
- the first shaft shoulder can be displaced in the axial direction within the receiving section.
- the first and second partial shafts are preferably connected to one another in the area of the outlet chamber.
- the drive shaft which is designed in several parts, facilitates the assembly and disassembly of the separator device for maintenance and repair work. This effect is achieved in particular when the first partial shaft and the second partial shaft are connected to one another in the area of the outlet chamber.
- the screw conveyor extends in the axial direction between an upstream screw end and a downstream screw end, the screw conveyor in the area of the upstream screw end being mechanically coupled to the drive shaft in the area of the upstream shaft end.
- the screw conveyor and the drive shaft are coupled to one another in a non-positive and/or positive manner.
- the screw conveyor and the drive shaft are coupled to one another in a non-positive manner by means of a screw connection and/or press fit and/or feather key or the like.
- the screw conveyor and the drive shaft are coupled to one another in a torque-resistant manner and/or in a way that transmits an axial force.
- the drive shaft is designed as a pull rod which, in the area of the upstream shaft end and in the area of the downstream shaft end, has a shaft end section with a cross section whose surface area is greater than a surface area of a cross section of a Shaft center portion extending between the two shaft end portions.
- Such a constricted pull rod has the advantage that it is particularly flexible on the one hand, but has the necessary strength at the ends for coupling to the drive unit and/or the auger to transmit the torque from the drive unit to the auger.
- the drive shaft is particularly easy to manufacture and requires comparatively little maintenance.
- the drive shaft has at least one universal joint and/or is designed as a cardan shaft.
- This preferred embodiment advantageously enables a comparatively compact design of the drive shaft and thus, if desired, also of the separator device.
- the universal joint or the cardan shaft allows possible angle errors and the like to be compensated for.
- the drive shaft in the area of the shaft end located downstream and the drive unit are coupled to one another in a non-positive and/or positive manner.
- the drive shaft in the region of the downstream shaft end and the drive unit are coupled to one another in a non-positive manner by a screw connection and/or press fit and/or feather key or the like.
- the drive shaft and the drive unit are coupled to one another in a torque-proof manner and/or in an axial force-transmitting manner.
- the drive unit has a motor shaft which is mounted rotatably about a motor axis of rotation, the drive unit being arranged such that the motor axis of rotation is inclined relative to the drive axis of rotation.
- the drive unit is arranged in relation to the drive shaft in such a way that the Motor axis of rotation extends orthogonally to the drive axis of rotation.
- Such an arrangement of the drive unit enables comparatively easy access in the axial direction to the separator device.
- the outlet is arranged between the drive unit and the screening device.
- the drive shaft and/or the screw conveyor is/are arranged such that it can be displaced in the axial direction relative to the screening device.
- the separator device has a shaft adjustment unit for adjusting the drive shaft and/or the screw conveyor in the axial direction.
- the position of the drive shaft and/or the screw conveyor in the axial direction relative to the screening device is fixed once by shifting the drive shaft and/or the screw conveyor.
- the drive shaft and/or the screw conveyor can be displaced in the axial direction relative to the screening device by means of the shaft adjustment unit.
- the separator device is designed to displace the drive shaft and/or the conveyor screw in the axial direction relative to the screening device during operation.
- the shaft adjustment unit is designed to displace the drive shaft and/or the screw conveyor in the axial direction relative to the screening device during operation of the separator device.
- the drive shaft and/or the screw conveyor can be positioned axially relative to the screening device depending on the desired degree of dry matter content of the dewatered mass at the outlet and/or the moisture of the wet mass to be dewatered at the inlet and/or the viscosity of the wet mass to be dewatered at the inlet be moved.
- Second aspect of the invention Conical screen device and screw conveyor.
- the invention relates to a separator device for dewatering a moist mass.
- this object is achieved by a separator device for dewatering a moist mass, the separator device having a drive shaft which is mounted rotatably about a drive axis of rotation and extends in an axial direction between an upstream shaft end and a downstream shaft end, a conveyor screw which is connected to the drive shaft is connected and is designed to convey in a conveying direction the moist mass to be separated from the liquid from an upstream inlet to an outlet opposite the inlet downstream, a screening device which encloses the conveyor screw, the screening device being configured to separate the liquid from the moist To separate mass, and to lead the moist mass, in particular solids of the moist mass, in the conveying direction from the inlet to the outlet, and characterized in that the envelope of the screw conveyor and the inner surface of the screening device are each conical.
- the separator device is designed for dewatering moist masses.
- a moist mass is in particular a suspension containing solids.
- a wet mass includes in particular solids and liquid.
- the separator device In order to drain the moist mass, the separator device has a drive shaft which is mounted so as to be rotatable about a drive axis of rotation.
- the drive shaft extends in an axial direction between an upstream shaft end and a downstream shaft end.
- the separator device preferably comprises a drive unit which is coupled, in particular mechanically coupled, to the drive shaft in the area of the downstream shaft end in order to drive the drive shaft.
- the mechanical coupling between the drive shaft and the drive unit is preferably a non-positive and/or positive coupling.
- the drive shaft and the drive unit are coupled to one another in a non-positive manner by means of a screw connection and/or press fit.
- the drive unit is mechanically coupled to the drive shaft in the area of the downstream shaft end without a seal.
- a drive unit that is mechanically coupled to the drive shaft in the area of the downstream shaft end without a seal has, in particular, no shaft seal and/or mechanical seal. This has the advantage that fewer wearing parts are used in this separator device and therefore less maintenance work is required.
- the drive unit has a motor shaft which is mounted so as to be rotatable about a motor axis of rotation.
- the drive unit is preferably arranged in such a way that the axis of rotation of the motor is inclined relative to the axis of rotation of the drive. It can be particularly preferred that the drive unit is arranged opposite the drive shaft in such a way that the motor axis of rotation extends orthogonally to the drive axis of rotation.
- the drive shaft is mechanically coupled to the drive unit in such a way that the drive shaft is prestressed with a tensile force in the axial direction.
- the drive shaft is preferably designed as a tension rod.
- the pull rod can, for example, be cylindrical with a constant cross section, or the pull rod can have a shaft end section with a cross section, for example in the area of the upstream shaft end and in the area of the downstream shaft end, the surface extent of which is greater than a surface area Extension of a cross-section of a shaft center section, which extends between the two shaft end sections.
- the drive shaft is preferably designed as a solid shaft.
- the separator device has a screw conveyor.
- the conveyor screw is connected to the drive shaft and is designed to convey the moist mass to be separated from the liquid, i.e. the moist mass to be dewatered, in a conveying direction from an inlet located upstream to an outlet located downstream opposite the inlet.
- the screw conveyor is preferably hollow.
- the auger encloses the drive shaft at least partially.
- the drive shaft particularly preferably extends inside the conveyor screw.
- the auger extends axially between an upstream auger end and a downstream auger end.
- the screw conveyor is mechanically coupled to the drive shaft in the area of the upstream end of the screw, particularly in the area of the upstream end of the screw. It is preferred that the screw conveyor and the drive shaft are coupled to one another in a non-positive and/or positive manner. In particular, it is preferred that the screw conveyor and the drive shaft are coupled to one another in a non-positive manner by means of a screw connection and/or press fit.
- the drive shaft and/or the conveyor screw is/are preferably arranged such that it can be moved or adjusted in the axial direction.
- the separator device has a shaft adjustment unit for adjusting the drive shaft and/or the screw conveyor in the axial direction.
- the drive shaft and/or the screw conveyor is arranged such that it can be moved or adjusted in the axial direction relative to a screening device described below.
- the separator device has a screening device which encloses the conveyor screw.
- the auger extends within the screening device.
- the screening device is preferably arranged in a stationary manner in relation to the screw conveyor.
- the screening device is designed to separate the liquid from the moist mass, ie to drain it.
- the screening device is designed to guide the moist mass, in particular solids of the moist mass, in the conveying direction from the inlet to the outlet.
- the screening device extends between the inlet and the outlet.
- Both the screw conveyor and the screening device of the separator device are each conical.
- the screening device comprises a screen wall made of a bent or rolled metal sheet or a bent or rolled steel plate, in which/s outlet openings have been introduced as a screen pattern.
- the outlet openings are introduced, for example, by means of laser cutting.
- the screen wall is a conically rolled and/or conically curved screen wall.
- the screen wall has a weld seam which fixes the conically rolled and/or conically bent screen wall in a conical shape.
- the separator device has a screen device housing, an inlet chamber and an outlet chamber.
- the screening device is arranged within the screening device housing.
- the screening device housing has the inlet and the outlet and the screening device is arranged within the screening device housing in such a way that the screening device fluidically connects the inlet and the outlet.
- the screening device housing preferably has a drain opening through which the separated liquid can be discharged from the screening device housing.
- the separator device has a suction device which is fluidically connected to the outflow opening.
- the suction device is preferably arranged outside the screening device and is fluidically connected to the screening device downstream of the inlet.
- the suction device is designed to separate the liquid from the moist mass.
- the suction device sucks the liquid through the outlet openings of the liquid-permeable screen wall.
- the suction device can be fluidically connected to a liquid tank into which the liquid is sucked.
- the suction device is designed to suck in the liquid separated from the moist mass and/or the moist mass to be provided at the inlet with a negative pressure.
- the negative pressure is in particular a pressure that is lower than the atmospheric pressure that prevails in particular at the operating site of the separator device.
- the suction device sucks off the liquid with a pressure that is lower than the pressure present at the inlet and/or outlet.
- the suction device is designed to generate such a negative pressure that the moist mass to be provided at the inlet can also be provided from a pit or the like that is significantly lower than the separator device.
- a separator device designed in this way has the advantage that the moist mass provided at the inlet is sucked in particularly well. Furthermore, this development has the advantage that the moist mass can also be sucked out of pits that are deeper than the separator device.
- the inlet chamber is arranged at the inlet, with the inlet chamber being designed to receive the moist mass to be separated from the liquid and to make it available at the inlet.
- the outlet chamber is arranged at the outlet, with the outlet chamber being designed to receive the mass that is provided at the outlet and has been separated from the liquid.
- the mass that is provided in the inlet chamber at the inlet has a higher humidity than the mass that is provided to the outlet chamber at the outlet.
- the separator device has a shaping device which is arranged downstream of the outlet and which encloses the drive shaft.
- the shaping device is arranged to be displaceable in the axial direction.
- the shaping device is particularly preferably arranged such that it can be displaced in the axial direction relative to the outlet.
- the molding device has a variable inner diameter that can be varied between a minimum inner diameter and a maximum inner diameter that is larger than the minimum inner diameter.
- the minimum inside diameter preferably corresponds to an outside diameter of the auger shaft.
- the molding device can be varied in particular between a closed position, in which the outlet is closed, and an open position, in which the outlet is open. In the closed position, the minimum inner diameter corresponds to the outer diameter of the minimum inner diameter Screw conveyor shaft, and in the open position the inner diameter of the forming device is greater than the minimum inner diameter.
- the molding device comprises a ring unit.
- the ring unit can be designed as an elastic one-piece ring, in particular as a one-piece rubber ring.
- the molding device has a molding device flange to which the ring unit is attached.
- the mold flange has a cylindrical mold flange portion.
- the outlet is designed as a flange, it being possible for the outlet designed as a flange to have a cylindrical outlet section.
- the cylindrical mold flange portion is movably supported on the cylindrical outlet portion.
- Such a separator device has various advantages.
- the screw conveyor rests tightly against the screening device, regardless of wear and tear on the screw conveyor.
- the conical design enables improved dewatering of moist masses compared to known solutions.
- the screening device is in the form of a hollow cone.
- the hollow-cone-shaped screening device has a conical screen interior.
- the sieve device has an annular sieve cross-sectional area and/or an inside diameter of the sieve and/or an outside diameter of the sieve, which decreases from the upstream inlet to the downstream outlet.
- the screening device for separating the liquid from the solids in the mass has a cone-shaped and liquid-permeable screen wall with outlet openings, which is located between an inner screen surface of the screen wall that faces the screw conveyor and a relative to the Screen inner surface radially outer screen outer surface of the screen wall, which faces away from the screw conveyor, extend through which the liquid separated from the moist mass during operation of the separator device can escape.
- the outlet openings have an opening cross section that increases from the inner surface of the screen in the direction of the outer surface of the screen.
- the conveying screw has a screw cross-sectional area which decreases from the upstream inlet to the downstream outlet.
- the separator device provides that the conveyor screw has a conical screw blade with a screw blade height that varies or is constant in the conveying direction, and/or the conveyor screw has a conveyor screw shaft with a conveyor screw outer diameter, with the conveyor screw outer diameter preferably being constant or varying in the conveying direction .
- the screw blade height decreases from the upstream inlet to the downstream outlet.
- the screw blade has an outer screw blade radius and a screw blade inner radius, the screw blade inner radius being smaller than the screw blade outer radius. It is provided here that the outer radius of the screw blade decreases in the conveying direction and the inner radius of the screw blade is constant or that the outer radius of the screw blade decreases in the direction of conveyance and the inner radius of the screw blade decreases.
- the conveyor screw in particular the screw blade, rests tightly against the screening device, in particular the inner surface of the screen.
- the screw conveyor is arranged such that it can be displaced relative to the screening device in the conveying direction.
- a screening device (30) which encloses the conveyor screw (20), the screening device (30) being designed o to separate the liquid (L) from the moist mass (M), and o to separate the moist mass (M), in particular solids of the moist mass (M), in the conveying direction (F) from the inlet (31) to the outlet (32), and characterized in that the envelope of the conveyor screw (20) and the inner surface of the screening device (30) are each conical.
- Separator device (1) according to the preceding claim 1, wherein the screening device (30) is designed as a hollow cone.
- Separator device (1) according to one of the preceding claims 1 or 2, wherein the screen device (30) has an annular screen cross-sectional area and/or a screen inner diameter and/or a screen outer diameter which decreases from the upstream inlet (31) to the downstream outlet (32). /lose weight. 4.
- the sieve device (30) for separating the liquid from the solids of the mass has a cone-shaped and liquid-permeable sieve wall with outlet openings, which is located between an inner sieve surface of the sieve wall, which is conveyor screw (20) and an outer surface of the screen wall that is radially outward in relation to the inner surface of the screen and faces away from the conveyor screw (20), through which the wet mass (M) is separated during operation of the separator device (1). Liquid (L) can escape.
- a separator device (1) according to any one of the preceding claims 1 to 5, wherein the auger (20) has an auger cross-sectional area which decreases from the upstream inlet (31) to the downstream outlet (32).
- Third aspect of the invention Slidable rubber disc to adjust the dry matter content of the mass provided at the outlet.
- the invention relates to a separator device for dewatering a moist mass.
- Such separator devices For dewatering moist masses, such separator devices have a cylindrical screw conveyor which is surrounded by a screening device and conveys the moist mass from an inlet to an outlet. Furthermore, such separator devices have a shaping device which is arranged stationarily at the outlet of the separator device and closes the outlet until a certain conveying pressure generated by the screw conveyor is exceeded and the separator device provides the dewatered moist mass at the outlet.
- the molding device thus holds back the moist mass to be conveyed, depending on the rigidity of the molding device.
- the degree of residual moisture that the moist mass to be dewatered should have at the outlet therefore depends on the rigidity of the molding device. If the residual moisture of the dewatered mass at the outlet is to be changed, a shaping device with a correspondingly modified rigidity must be provided.
- this object is achieved by a separator device for dewatering a moist mass, the separator device having a drive shaft which is rotatably mounted about a drive axis of rotation and extends in an axial direction between an upstream shaft end and a downstream shaft end, a conveyor screw which is connected to the drive shaft is connected and is designed to convey the mass in a conveying direction from an inlet located upstream to an outlet located downstream opposite the inlet, a screening device which encloses the conveyor screw, the screening device being configured to separate liquid from the moist mass, and the moist mass, in particular solids of the moist mass, in the conveying direction from the inlet to the outlet, and characterized in that a shaping device, which encloses the conveyor screw, is arranged downstream of the outlet so as to be displaceable in the axial direction.
- the forming device is relatively displaceable in the axial direction. This can be realized by shifting the forming device together with the screw conveyor and/or the drive shaft, so that this entire unit can be shifted relative to the screening device.
- the shaping device can also be axially displaceable relative to the auger or relative to the drive shaft, so that the displacement of the shaping device can take place independently of the position and displacement of the auger and/or the drive shaft.
- the separator device is designed for dewatering moist masses.
- a moist mass is in particular a suspension containing solids.
- a wet mass includes in particular solids and liquid.
- the separator device has a drive shaft which is mounted so as to be rotatable about a drive axis of rotation.
- the drive shaft extends in an axial direction between an upstream shaft end and a downstream shaft end.
- the separator device preferably comprises a drive unit which is coupled, in particular mechanically coupled, to the drive shaft in the area of the downstream shaft end in order to drive the drive shaft.
- the mechanical coupling between the drive shaft and the drive unit is preferably a non-positive and/or positive coupling.
- the drive shaft and the drive unit are coupled to one another in a non-positive manner by means of a screw connection and/or press fit.
- the drive unit is mechanically coupled to the drive shaft in the area of the downstream shaft end without a seal.
- a drive unit that is mechanically coupled to the drive shaft in the area of the downstream shaft end without a seal has, in particular, no shaft seal and/or mechanical seal. This has the advantage that fewer wearing parts are used in this separator device and therefore less maintenance work is required.
- the drive unit has a motor shaft which is mounted so as to be rotatable about a motor axis of rotation.
- the drive unit is preferably arranged in such a way that the axis of rotation of the motor is inclined relative to the axis of rotation of the drive. It can be particularly preferred that the drive unit is arranged opposite the drive shaft in such a way that the motor axis of rotation extends orthogonally to the drive axis of rotation.
- the drive shaft is mechanically coupled to the drive unit in such a way that the drive shaft is prestressed with a tensile force in the axial direction.
- the drive shaft is preferably designed as a tension rod.
- the pull rod can, for example, be cylindrical with a constant cross section, or the pull rod can have a shaft end section with a cross section, for example in the area of the upstream shaft end and in the area of the downstream shaft end, the surface extent of which is greater than a surface extent of a cross section of a shaft middle section , which extends between the two shaft end sections.
- the drive shaft is preferably designed as a solid shaft.
- the separator device has a screw conveyor.
- the screw conveyor is connected to the drive shaft and designed to convey the moist mass to be separated from the liquid, ie the moist mass to be dewatered, in a conveying direction from an upstream inlet to an outlet downstream of the inlet.
- the auger encloses the drive shaft at least partially.
- the screw conveyor is conical.
- the auger has an auger cross-sectional area that decreases from the upstream inlet to the downstream outlet.
- the auger has a conical auger blade with an auger blade height that varies or is constant in the conveying direction.
- the screw blade height decreases from the upstream inlet to the downstream outlet.
- the screw blade has an outer screw blade radius and an inner screw blade radius that is smaller than the outer screw blade radius, with the outer screw blade radius decreasing in the conveying direction and the inner screw blade radius being constant or the outer screw blade radius decreasing in the conveying direction and the inner screw blade radius decreasing.
- the separator device has a screening device which encloses the conveyor screw.
- the auger extends within the screening device.
- the screw conveyor in particular the screw blade, is in close contact with the screening device, in particular the inner surface of the screen.
- the screw conveyor is rotatably arranged within the screening device.
- the screening device is preferably arranged in a stationary manner in relation to the screw conveyor.
- the screening device is designed to separate the liquid from the moist mass, i.e. to dewater it. Furthermore, the screening device is designed to guide the moist mass, in particular solids of the moist mass, in the conveying direction from the inlet to the outlet.
- the screening device of the separator device is preferably conical, in particular in the form of a hollow cone.
- the screening device comprises a screen wall made of a bent or rolled metal sheet or a bent or rolled steel plate, in which/s outlet openings have been introduced as a screen pattern.
- the outlet openings are introduced, for example, by means of laser cutting.
- the Screen wall a conically rolled and/or conically curved screen wall.
- the screen wall has a weld seam which fixes the conically rolled and/or conically bent screen wall in a conical shape.
- the sieve device for separating the liquid from the moist mass has a cone-shaped and liquid-permeable sieve wall with outlet openings located between an inner sieve surface of the sieve wall, which faces the conveyor screw, and an outer sieve surface, which is radially outward in relation to the inner sieve surface Screen wall facing away from the auger extend.
- the screening device has an annular screen cross-sectional area and/or a screen inner diameter and/or a screen outer diameter that decreases from the upstream inlet to the downstream outlet.
- the separator device has a screen device housing, an inlet chamber and an outlet chamber.
- the screening device is arranged within the screening device housing.
- the screening device housing has the inlet and the outlet and the screening device is arranged within the screening device housing in such a way that the screening device fluidically connects the inlet and the outlet.
- the screening device housing preferably has a drain opening through which the separated liquid can be discharged from the screening device housing.
- the separator device has a suction device which is fluidically connected to the outflow opening.
- the suction device is preferably arranged outside the screening device and is fluidically connected to the screening device downstream of the inlet.
- the suction device is designed to separate the liquid from the moist mass.
- the suction device sucks the liquid through the outlet openings of the liquid-permeable screen wall.
- the suction device can be fluidically connected to a liquid tank into which the liquid is sucked.
- the suction device is designed to suck in the liquid separated from the moist mass and/or the moist mass to be provided at the inlet with a negative pressure.
- the negative pressure is in particular a pressure that is lower than the atmospheric pressure that prevails in particular at the operating site of the separator device.
- the suction device sucks off the liquid with a pressure that is lower than the pressure present at the inlet and/or outlet.
- the suction device is designed to generate such a negative pressure that the moist mass to be provided at the inlet can also be provided from a pit or the like that is significantly lower than the separator device.
- a separator device designed in this way has the advantage that the moist mass provided at the inlet is sucked in particularly well. Furthermore, this development has the advantage that the moist mass can also be sucked out of pits that are deeper than the separator device.
- the inlet chamber is arranged at the inlet, with the inlet chamber being designed to receive the moist mass to be separated from the liquid and to make it available at the inlet.
- the outlet chamber is arranged at the outlet, with the outlet chamber being designed to receive the mass that is provided at the outlet and has been separated from the liquid.
- the mass that is provided in the inlet chamber at the inlet has a higher humidity than the mass that is provided to the outlet chamber at the outlet.
- the separator device further comprises a shaping device which encloses the auger and is arranged to be axially displaceable downstream of the outlet.
- Such a separator device has various advantages.
- the movably mounted shaping device enables a flexible and cost-effectively adjustable residual moisture content of the moist mass to be dewatered at the outlet.
- the shaping device has a variable inner diameter, which can be changed between a minimum inner diameter and a maximum inner diameter, which is larger than the minimum inner diameter.
- the minimum inner diameter corresponds to an outer diameter of the drive shaft.
- the shaping device can be varied between a closed position, in which the outlet is closed, and an open position, in which the outlet is open, with the minimum inner diameter corresponding to the outer diameter of the drive shaft in the closed position. and in the open position the inside diameter of the mold assembly is greater than the minimum inside diameter.
- the shaping device has a ring unit.
- the ring unit is designed as a one-piece ring, in particular as a one-piece rubber ring.
- the ring unit is designed as an elastic, one-piece ring.
- the shaping device has a shaping device flange to which the ring unit is fastened.
- the shaping device flange has a cylindrical shaping device flange section.
- the outlet is designed as a flange.
- the outlet designed as a flange has a cylindrical outlet section.
- the cylindrical shaping device flange section is movably mounted on the cylindrical outlet section.
- Separator device for dewatering a moist mass
- the separator device comprising: a drive shaft which is mounted rotatably about a drive axis of rotation and which extends in an axial direction between an upstream shaft end and a downstream shaft end, a screw conveyor which is connected to the drive shaft and is designed in a conveying direction to convey the mass from an upstream inlet to an outlet located downstream opposite the inlet, a screening device which encloses the conveyor screw, the screening device being designed to separate o liquid from the moist mass, and o to separate the moist mass, in particular solids of wet mass, in the conveying direction from the inlet to the outlet, and characterized in that a shaping device enclosing the conveying screw is arranged downstream of the outlet in an axially displaceable manner.
- the shaping device has a variable inner diameter which can be changed between a minimum inner diameter and a maximum inner diameter which is larger than the minimum inner diameter.
- FIG. 1 a schematic, three-dimensional view of an exemplary preferred embodiment of a separator device
- FIG. 2 shows a sectional view of a preferred embodiment of the separator device based on the preferred embodiment of a separator device shown in FIG. 1;
- FIG. 3 a sectional view of a further preferred embodiment of the separator device based on the preferred embodiment of a separator device illustrated in FIG. 2;
- FIG. 4 a sectional view of a further preferred embodiment of the separator device based on the preferred embodiment of a separator device shown in FIG. 1;
- FIG. 5a a sectional view of a further preferred embodiment of the separator device based on the preferred embodiment of a separator device shown in FIG. 1;
- FIG. 5b a detailed illustration of the sectional view shown in FIG. 5a;
- FIG. 6 shows a sectional view of a further preferred embodiment of a separator device based on the preferred embodiment of a separator device illustrated in FIGS. 5a and 5b;
- FIG. 7 a sectional view of a further preferred embodiment of a separator device based on the preferred embodiment of a separator device illustrated in FIG.
- FIG. 1 shows a schematic, three-dimensional view of an exemplary embodiment of a separator device 1 .
- the separator device 1 is designed to dewater a moist mass M in order to provide a dewatered mass S with a desired dry matter content.
- the separator device 1 has a drive shaft 10 which is mounted rotatably about a drive axis of rotation D1 and which extends in an axial direction A between an upstream shaft end 11 and a downstream shaft end 12 .
- the drive shaft 10 is driven by a motor shaft of a drive unit 40 which is rotatably mounted about a motor axis of rotation D2.
- the motor rotation axis D2 extends orthogonally to the drive rotation axis D1; a different arrangement of the drive unit 40, in which the motor axis of rotation D2 is oriented inclined to the drive axis of rotation D1 or the motor axis of rotation D2 extends parallel to the drive axis of rotation D1, is conceivable.
- a screw conveyor 20 is arranged rotatably within a screening device 30 so that the Screening device 30, the screw conveyor 20 encloses.
- the screening device 30 is in turn arranged within a screening device housing 50 .
- the arrangement of the screening device 30 within the screening device housing 50 as well as the drive shaft 10 is covered by the screening device housing 50 in the depiction of the separator device 1 in FIG. Only the shaft end 12 of the drive shaft 10 lying downstream and a section of the auger shaft of the auger 20 are visible in FIG.
- FIGS. 3 and 4 preferred embodiments of the separator device 1 are shown, which have a cylindrical screening device 30, within which a cylindrical conveyor screw 20 is rotatably mounted.
- FIGS. 5a, 5b and 6 preferred embodiments of the separator device 1 are shown, which have a conical screening device 30, within which a conical screw conveyor 20 is rotatably mounted.
- the screw conveyor 20 and the screening device 30 are designed in such a way that the screw conveyor 20 rests tightly against the screening device 30, in particular on a screen inner surface of a fluid-permeable screen wall of the screening device 30.
- the moist mass M to be drained is compressed in the conveying direction F between the conveying screw 20 and that of the screening device 30 as a function of a conveying pressure. This causes the liquid L to be pressed out of the moist mass M through the fluid-permeable screen wall of the screening device 30 .
- the fluid-permeable screen wall has outlet openings that extend between the inner surface of the screen wall that faces the screw conveyor 20 and an outer surface of the screen wall that is radially outward in relation to the inner surface of the screen and faces away from the screw conveyor 20 .
- the liquid L separated from the moist mass M can exit the screening device 30 through the outlet openings.
- the size of the outlet openings is designed such that the liquid L but not the solids of the moist mass M can escape through the screen wall from the screening device, so that the solids of the moist mass M are guided through the screening device 30 to the outlet 32 .
- the outlet openings preferably have a cross section which increases from the inner surface of the screen towards the outer surface of the screen.
- the screen device housing 50 has an inlet 31 and an outlet 32 which the screen device 30 fluidly connects.
- An inlet chamber 51 is arranged at the inlet 31 of the screen device housing 50 and an outlet chamber 52 is arranged at the outlet 32 of the screen device housing 50 .
- the screen device housing 50 thus extends in the axial direction between the inlet chamber and the outlet chamber.
- the inlet chamber and the outlet chamber are thus fluidly connected to one another by the screener housing 50 .
- the inlet chamber 51 is designed to receive the moist mass M to be dewatered and to make it available at the inlet 31 .
- the inlet chamber 51 shown in FIG. 1 has an opening 51a through which the moist mass M to be dewatered can be fed to the inlet chamber 51 .
- the moist mass M supplied to the inlet chamber 51 is conveyed with the conveying screw in the conveying direction F from the inlet 31 lying upstream to the outlet 32 lying downstream opposite the inlet 31 .
- the screw conveyor 20 is connected to the drive shaft 10 so that the rotational movement of the drive shaft 10 is transmitted to the screw conveyor 20 .
- the moist mass conveyed by the screw conveyor 20 then reaches the outlet as a dewatered moist mass S 32 with a desired dry matter content, the dewatered mass S is conveyed into the outlet chamber 52, which is designed to receive the dewatered mass S provided at the outlet 32.
- the dewatered mass S can have residual moisture.
- the dry matter content of the dewatered mass S provided at the outlet is in any case greater than the dry matter content of the moist mass M to be dewatered provided at the inlet.
- the shaping device 70 is arranged downstream of the outlet 32 in the axial direction A. As shown in FIG.
- the shaping device 70 is designed to be flexible or elastic and has a variable inside diameter that can be changed between a minimum inside diameter and a maximum inside diameter that is larger than the minimum inside diameter.
- the minimum inner diameter corresponds to an outer diameter of the auger shaft 23.
- the mold assembly 70 includes a ring assembly 71 and a mold assembly flange 72 to which the ring assembly 71 is attached.
- the ring unit 71 is designed as a one-piece rubber ring. The rubber ring is placed with the former flange 72 on the screener housing 50 in the area of the outlet.
- the molding device 70 can be varied between a closed position in which the outlet 32 is closed and an open position in which the outlet 32 is open.
- the closed position the screening device housing 50 is closed with respect to the outlet chamber 52 , that is to say it is not fluidically connected to the outlet chamber 52 .
- the open position the screening device housing 50 is open with respect to the outlet chamber 52 , that is to say it is fluidically connected to the outlet chamber 52 .
- the minimum inner diameter corresponds to the outer diameter of the conveyor screw shaft 23. If the separator device 1 is operated, dewatered mass S enters the outlet chamber 52 through the outlet 32 from the screening device housing 50 or the screening device 30.
- the dewatered mass S presses the shaping device 70, in particular the ring unit, outwards as soon as a certain delivery pressure is reached.
- the shaping device 70 is then in the open position, in which the inner diameter of the shaping device 70 is greater than its minimum inner diameter and the screening device at the outlet is fluidically connected to the outlet chamber.
- the shaping device 70 serves as a flexible resistance and helps to build up a required conveying pressure in the mass M to be conveyed between the conveyor screw 20 and the screening device 30 in order to drain the moist mass M provided in the conveying direction F.
- FIGS. 2 and 3 each show a sectional view of a preferred embodiment of the separator device 1 based on the preferred embodiment of the separator device 1 shown in FIG.
- the drive shaft 10 is designed as a solid shaft in the form of a tie rod and the cylindrical auger shaft 23 of the auger 20 is hollow.
- the screw conveyor 20 extends in the axial direction A between an upstream end 21 and a downstream end 22 of the screw.
- the screw conveyor is rotatably mounted within the screening device 30 and the screw conveyor 20 or the screw conveyor shaft 23 is mechanically coupled in the area of the upstream screw end 21 to the drive shaft 10 in the area of the upstream shaft end 11 .
- the drive shaft 10 and the screw conveyor 20 are mechanically coupled in a non-positive manner by means of a press fit. The rotational movement of the drive shaft 10 is transmitted to the auger 20 by this mechanical connection.
- the drive shaft 10 is mechanically coupled to the drive unit 40 in the area of the downstream shaft end 12 (not shown in detail).
- the drive shaft 10 is designed in several parts.
- the drive shaft 10 has a first partial shaft 10a and a second partial shaft 10b. Provision is made for the first partial shaft 10a to be mounted in the drive unit 40 in a rotatable and drivable manner. Provision is also made for the second partial shaft 10b to be coupled to the conveyor screw 20 .
- the first partial shaft 10a and the second partial shaft 10b are coupled to one another in a torque-proof manner within the outlet chamber 52 and in an axially force-transmitting manner.
- a screw and plug connection is provided for the torque-resistant and axial force-transmitting coupling of the first and second partial shafts 10a, 10b.
- the first partial shaft 10a has at least one shaft shoulder 16, which is inserted into the second partial shaft 10b.
- the second partial shaft 10b has a corresponding receiving section 17 for the shaft shoulder 16 of the first partial shaft 10a. This allows the first partial shaft 10a in the second Sub-shaft 10b are inserted, in particular for torque transmission. It is particularly preferred that the first and second partial shafts are arranged such that they can be displaced relative to one another in the axial direction. Furthermore, it is provided that the first partial shaft 10a has a through bore 18 and an internally threaded bore 19 is formed on the second partial shaft 10b.
- a shaft adjustment unit 80 is provided for adjusting the position of the second partial shaft 10b relative to the first partial shaft 10a in the axial direction.
- the shaft adjustment unit 80 has a threaded rod 81 which extends through the through hole 18 and is screwed into the internally threaded hole 19 .
- an axial bearing 82 of the shaft adjustment unit 80 is arranged on the face side, in which the threaded rod 81 is arranged so that it can rotate and is fixed in the axial direction. If the threaded rod 81 is now rotated, this causes the second partial shaft 10b to be displaced in the axial direction A relative to the first partial shaft 10a.
- the distance between the screw blade 24 and the shaping device 70 arranged at the outlet 32 and thus the dry matter content of the dewatered mass S provided at the outlet can be adjusted. If the second partial shaft 10a and thus the conveyor screw 20 are pushed in the axial direction in the direction of the inlet chamber 51, the distance between the screw blade 24 and the shaping device 70 is increased. As a result, the dry matter content of the dewatered mass S provided at the outlet 32 increases. If the distance between the screw blade 24 and the shaping device 70 is reduced, i.e.
- the screw conveyor or the second partial shaft can be displaced in the axial direction A by manually turning the threaded bolt or the screw.
- the drive shaft 10 In order to realize a drive shaft 10 that is as flexible as possible and that compensates for angular errors, the drive shaft 10, in this case the second partial shaft 10b, has different cross-sectional areas.
- the drive shaft 10 designed as a tension rod has a shaft end section 13, 14 in the region of the upstream shaft end 11 and in the coupling region of the first and second partial shafts 10a, 10b, between which a shaft center section 15 extends.
- the planar extent of the cross section of the shaft end sections 13, 14 is greater than the planar extent of the cross section of the shaft center section 15.
- the embodiment of the separator device 1 shown in Figure 3 differs essentially from the preferred embodiment of the separator device 1 shown in Figure 2 in that the shaft adjustment unit 80 can be controlled automatically by a drive in order to bring about an axial displacement of the conveyor screw 20 within the screening device 30 .
- the axial bearing 82 of the shaft adjustment unit 80 has a corresponding connection for a drive and a correspondingly mounted axial bearing of the shaft adjustment unit 80 .
- Figure 4 shows a schematic sectional view of a further preferred embodiment of a separator device 1 based on the preferred embodiments of a separator device 1 shown in Figures 1 to 3.
- the conveyor screw 20 or the drive shaft 10 of the embodiment of the separator device 1 shown in FIG. 4 cannot be displaced in the axial direction relative to the screening device 30.
- the separator device 1 shown in FIG. 4 also has no shaft adjustment unit 80 .
- the shaping device 70 has a variable inside diameter that can be changed between a minimum inside diameter and a maximum inside diameter that is larger than the minimum inside diameter.
- the minimum inner diameter corresponds to an outer diameter of the auger shaft 23.
- the shaping device 70 can be varied between a closed position, in which the outlet 32 is closed, and an open position, in which the outlet 32 is open.
- FIG. 4 shows the molding device 70 in a closed position. In the closed position, the minimum inner diameter corresponds to the outer diameter of the conveyor screw shaft 23. If the separator device 1 is operated and dry mass S enters the outlet chamber 52 from the outlet 32, the mass M presses the shaping device 70 outwards. The molding device 70 is then in the open position, in which the inside diameter of the molding device 70 is greater than its minimum inside diameter.
- the mold assembly 70 includes a ring assembly 71 and a mold assembly flange 72 to which the ring assembly 71 is secured.
- the ring unit 71 is designed as a one-piece rubber ring.
- the mold flange 72 has a cylindrical mold flange portion.
- the outlet is formed as a flange 32a having a cylindrical outlet portion.
- the mold 70 is arranged opposite to the outlet 32 such that the cylindrical mold flange portion encloses the cylindrical outlet portion, so that the mold 70 is movable in the axial direction A with respect to the outlet 32 .
- a mold device adjusting unit (not shown) can be provided, which is designed. to displace the forming device 70 in the axial direction with respect to the outlet.
- the shaping device 70 is displaced in the direction of the drive unit 40 so that the distance between the outlet 32 and the ring unit increases, the dry matter content of the dewatered mass S provided at the outlet 32 increases. Conversely, the dry matter content of the dewatered mass S provided at the outlet 32 decreases, ie the water content increases, if the distance between the outlet 32 and the ring unit of the shaping device 70 is reduced.
- the preferred embodiment of a separator device 1 shown in FIG. 5a is essentially based on the preferred embodiments of a separator device 1 shown in FIGS.
- the screening device 30 in the sectional view shown in FIG. 5a is designed conically as a hollow cone.
- the hollow cone comprises an annular screen cross-sectional area that changes in the axial direction, as well as a screen inner diameter that changes in the axial direction A and a screen outer diameter that changes in the axial direction A.
- the ring-shaped screen cross-sectional area and also the screen inner diameter and the screen outer diameter of the screening device 30 decrease in the conveying direction F from the upstream inlet 31 to the downstream outlet 32 .
- the screw conveyor 20 is conical.
- the auger has an auger cross-sectional area that decreases in the conveying direction F from the upstream inlet 31 to the downstream outlet 32 .
- the auger includes a tapered auger flight 24 having an auger height.
- the screw height decreases in the conveying direction F.
- the conical screw blade 24 has, in the conveying direction F constant screw blade inner radius and a decreasing screw blade outer radius.
- the inner radius of the screw blade corresponds to the outer radius or the outer diameter of the screw conveyor shaft 23.
- the detailed representation in Figure 5b illustrates the conical shape of the screening device 30 and the conical screw conveyor 20 arranged therein.
- the preferred embodiment of the separator device 1 shown in FIG. 6 is based on the preferred embodiment of a separator device 1 shown in FIGS. 5a and 5b.
- the embodiment of the Separator device 1 has a shaping device 70 that can be displaced relative to the outlet 32 in the axial direction A, as described above in relation to the preferred embodiment of a separator device 1 shown in FIG.
- FIG. 7 shows a schematic sectional view of another preferred embodiment of a separator device 1 based on the preferred embodiment of a separator device 1 shown in Figure 1.
- the separator device 1 shown in Figure 7 has a suction device 60 which is arranged outside of the screening device 30 and downstream of the inlet 31 is fluidically connected to the screening device 30 .
- the screening device housing 50 preferably has an outflow opening 53 to which the suction device 60 for sucking off the liquid L is fluidically connected.
- the suction device 60 is designed, in order to separate the liquid L from the moist mass M to be drained, to suck off the liquid L, in particular also through the outlet openings of the liquid-permeable screen wall.
- the suction device 60 generates a suction pressure with which the liquid is separated from the mass to be drained. Furthermore, the suction pressure of the suction device 60 can be used in a preferred manner in order to suck in the moist mass M to be drained that is provided at the inlet.
- the separator device 1 can also have a liquid tank 61 which is fluidically connected to the suction device 60 and receives the liquid L sucked off by the suction device 60 .
- a solids tank 62 can also be provided, which receives the dewatered mass S conveyed into the outlet chamber 52 .
- the suction pressure generated by the suction device 60 can be adjusted as a function of the desired dry matter content of the dewatered material S to be provided at the outlet and/or the viscosity of the moist material M to be dewatered provided at the inlet and/or the liquid of the moist material M to be dewatered provided at the inlet set.
- the preferred embodiments of a separator device 1 shown above in FIGS. 1 to 6 include the suction device described in relation to the preferred embodiment of a separator device 1 shown in FIG.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Centrifugal Separators (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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AU2022377034A AU2022377034A1 (en) | 2021-10-28 | 2022-10-24 | Separator device for dewatering wet matter |
CA3236651A CA3236651A1 (en) | 2021-10-28 | 2022-10-24 | Separator device for dewatering wet matter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102021128199.7A DE102021128199A1 (de) | 2021-10-28 | 2021-10-28 | Separatorvorrichtung zur Entwässerung feuchter Massen |
DE102021128199.7 | 2021-10-28 |
Publications (1)
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WO2023072814A1 true WO2023072814A1 (de) | 2023-05-04 |
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PCT/EP2022/079549 WO2023072814A1 (de) | 2021-10-28 | 2022-10-24 | Separatorvorrichtung zur entwässerung feuchter massen |
Country Status (4)
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AU (1) | AU2022377034A1 (de) |
CA (1) | CA3236651A1 (de) |
DE (1) | DE102021128199A1 (de) |
WO (1) | WO2023072814A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3943034A (en) * | 1973-04-05 | 1976-03-09 | Lennart Wallen & Co Ab | Dewatering and homogenizing apparatus |
EP0672519A1 (de) * | 1994-03-14 | 1995-09-20 | Andreas Kufferath GmbH & Co. KG | Schneckenpresse zum Entwässern von Suspensionen |
DE19706803A1 (de) * | 1997-02-21 | 1998-09-03 | Klaus Dipl Ing Buttchereit | Verfahren und Vorrichtung zur mechanischen Trockenextraktion und Zerkleinerung organischer Rohstoffe |
DE10059839A1 (de) * | 2000-12-01 | 2002-06-20 | Walter Gesner | Verfahren und Vorrichtung zur Schlammeindickung in mechanisch-biologischen Abwasser-Kläranlagen |
WO2003000603A2 (de) * | 2001-06-21 | 2003-01-03 | Kühn Umweltprodukte Gmbh | Vorrichtung zum eindicken oder entwässern von schlämmen, sedimenten aus gewässern oder dergleichen, insbesondere von überschusschlämmen in kläranlagen |
AT509618A1 (de) * | 2010-03-18 | 2011-10-15 | Celtec Gmbh | Pressschneckenseparator |
DE102014200577B3 (de) * | 2014-01-15 | 2015-05-28 | Röhren- Und Pumpenwerk Bauer Ges.M.B.H. | Pressschnecke, Pressschneckenseparator, Verschleißelement und Verfahren zum Herstellen einer Pressschnecke |
-
2021
- 2021-10-28 DE DE102021128199.7A patent/DE102021128199A1/de active Pending
-
2022
- 2022-10-24 WO PCT/EP2022/079549 patent/WO2023072814A1/de active Application Filing
- 2022-10-24 CA CA3236651A patent/CA3236651A1/en active Pending
- 2022-10-24 AU AU2022377034A patent/AU2022377034A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3943034A (en) * | 1973-04-05 | 1976-03-09 | Lennart Wallen & Co Ab | Dewatering and homogenizing apparatus |
EP0672519A1 (de) * | 1994-03-14 | 1995-09-20 | Andreas Kufferath GmbH & Co. KG | Schneckenpresse zum Entwässern von Suspensionen |
DE19706803A1 (de) * | 1997-02-21 | 1998-09-03 | Klaus Dipl Ing Buttchereit | Verfahren und Vorrichtung zur mechanischen Trockenextraktion und Zerkleinerung organischer Rohstoffe |
DE10059839A1 (de) * | 2000-12-01 | 2002-06-20 | Walter Gesner | Verfahren und Vorrichtung zur Schlammeindickung in mechanisch-biologischen Abwasser-Kläranlagen |
WO2003000603A2 (de) * | 2001-06-21 | 2003-01-03 | Kühn Umweltprodukte Gmbh | Vorrichtung zum eindicken oder entwässern von schlämmen, sedimenten aus gewässern oder dergleichen, insbesondere von überschusschlämmen in kläranlagen |
AT509618A1 (de) * | 2010-03-18 | 2011-10-15 | Celtec Gmbh | Pressschneckenseparator |
DE102014200577B3 (de) * | 2014-01-15 | 2015-05-28 | Röhren- Und Pumpenwerk Bauer Ges.M.B.H. | Pressschnecke, Pressschneckenseparator, Verschleißelement und Verfahren zum Herstellen einer Pressschnecke |
Also Published As
Publication number | Publication date |
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AU2022377034A1 (en) | 2024-05-09 |
CA3236651A1 (en) | 2023-05-04 |
DE102021128199A1 (de) | 2023-05-04 |
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