EP3423178B1 - Mélangeur, système pour appliquer un matériau de construction et procédé pour fabriquer une structure en matériau de construction - Google Patents
Mélangeur, système pour appliquer un matériau de construction et procédé pour fabriquer une structure en matériau de construction Download PDFInfo
- Publication number
- EP3423178B1 EP3423178B1 EP17707571.0A EP17707571A EP3423178B1 EP 3423178 B1 EP3423178 B1 EP 3423178B1 EP 17707571 A EP17707571 A EP 17707571A EP 3423178 B1 EP3423178 B1 EP 3423178B1
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- EP
- European Patent Office
- Prior art keywords
- drum
- mixer
- stirring shaft
- component
- conveying device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004566 building material Substances 0.000 title description 28
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000003756 stirring Methods 0.000 claims description 27
- 239000004035 construction material Substances 0.000 claims 4
- 239000000203 mixture Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 22
- 239000000654 additive Substances 0.000 description 11
- 238000011161 development Methods 0.000 description 11
- 230000000996 additive effect Effects 0.000 description 10
- 238000004804 winding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/148—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying a plurality of radially extending mixing bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/60—Mixing solids with solids
- B01F23/64—Mixing solids with solids using rotatable mixing elements at the lower end of discharge hoppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
- B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
- B01F27/0725—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis on the free end of the rotating axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
- B01F27/0726—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1121—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades pin-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
- B01F27/2123—Shafts with both stirring means and feeding or discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
- B01F35/71731—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper using a hopper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle
- B01F35/754551—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle using helical screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0818—Charging or discharging gates or chutes; Sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/142—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades
- B28C5/143—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades for materials flowing continuously through the mixing device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients
Definitions
- the present invention relates to a mixer and a method of making a structure from building material using a mixer.
- mixers with a drum in which an agitator shaft is arranged, which can be driven by a drive are used to mix different components, which can be, for example, solid, liquid or powdery.
- the agitator shaft can be equipped with pins, for example, so that when the agitator shaft rotates, the material to be mixed is moved and mixed.
- Such a mixer is, for example, in the published application WO 2007/066362 A1 shown. With this horizontal continuous mixer, the material to be mixed is fed into the drum via an inlet, mixed there by pins on the agitator shaft, and finally discharged from the drum again via a lateral outlet.
- the pins on the agitator shaft of such a mixer can be designed and arranged in such a way that the material to be mixed is moved by the pins in a predetermined direction in the drum.
- a movement of the material to be mixed through the drum of the mixer only works sufficiently well with certain viscosities of the material to be mixed.
- the conveying of the mixed material to an outlet of the mixer is insufficient, particularly in the case of highly viscous mixed materials. As a result, the mixer can become clogged and its function is impaired.
- An object of the present invention is therefore to avoid the disadvantages of the known devices.
- a mixer is to be made available which can also continuously mix and convey substances with a higher viscosity.
- the mixer should also be easy to use and inexpensive to use.
- the object is initially solved by a system according to claim 1.
- This solution offers the advantage that mixed materials with a higher viscosity can also be continuously mixed and conveyed.
- mixed materials with a higher viscosity can also be continuously mixed and conveyed.
- the conveying device according to the invention in the mixer also allows for such applications to convey the material to be mixed continuously and directly from an inlet of the drum to an outlet of the drum without the mixer being blocked by higher-viscosity mixture materials and thus failing in its function.
- the conveying device is arranged directly after the agitator shaft, so that the mixture mixed by the agitator shaft can be picked up directly by the conveying device and conveyed out of the drum through the outlet.
- the agitator shaft is equipped with pins, so that when the agitator shaft rotates, a material to be mixed in the drum is moved by the pins.
- stirrer shafts with pins are particularly suitable for mixing components with large grain sizes, for example grain sizes of 2 to 10 mm.
- This can be, for example, aggregates such as stones, gravel or sand.
- such a mixer is also suitable for mixing asymmetric substances such as mixed goods with fiber additives (for example carbon fibers, metal fibers or plastic fibers).
- the agitator shaft is not fitted with pins, but is designed, for example, as a helical agitator, disk agitator or inclined blade agitator.
- the conveying device and the agitator shaft are arranged on the same drive shaft, with this drive shaft being able to be driven by the drive. This has the advantage that an inexpensive and robust device results.
- the conveyor device and the agitator shaft are arranged on two separate drive shafts, the conveyor device being arranged on a first drive shaft and the agitator shaft on a second drive shaft, so that the conveyor device and agitator shaft can be driven at different speeds.
- Such an arrangement has the advantage that the mixing and the conveying of the material to be mixed can be adjusted separately from one another. In this way, mixing and conveying that is optimal for the respective purpose can be achieved through a specifically adjustable mixing capacity and conveying capacity. For example, for a first application, low mixing combined with high delivery capacity and/or delivery at high pressure can be advantageous, and for a second application thorough mixing combined with low delivery capacity and/or delivery at low pressure can be advantageous.
- the agitator shaft and the conveyor device are arranged side by side in the drum, with the agitator shaft being arranged on a first drum section and the conveyor device on a second drum section, and with the inlet on the first Barrel section and the outlet are arranged on the second barrel section.
- the first drum section with the agitator shaft arranged therein forms between 50% and 90%, preferably between 60% and 85%, particularly preferably between 70% and 80%, of a volume of the drum. It has been shown that by dividing the drum in this way, an optimal mixing performance can be achieved with a desired conveying performance of the mixer.
- the conveyor element is designed as a conveyor screw.
- the screw conveyor has at least two windings. Such a screw conveyor has the advantage that high-viscosity mixtures can also be conveyed in the drum and can also be conveyed out of the drum through the outlet with a desired pressure.
- windings differ in their extent in the direction of the drive shaft, the windings becoming narrower towards one end of the conveyor device.
- a delivery pressure of the delivery device can be changed, depending on the orientation of the constriction of the windings.
- a cross section of a shaft of the conveyor device can be designed to be variable in the direction of the drive shaft. In this way, a volume for the material to be mixed becomes narrower towards one end of the conveying device. As a result, a delivery pressure of the delivery device can be changed, depending on the orientation of the narrowing of the volume for the mixed material.
- only one inlet or else two or more inlets can be arranged on the drum.
- the components can be brought together, for example, before they are fed into the drum, or the components can be fed into the drum via separate inlets and only in the drum are mixed together.
- the agitator shaft and any agitator elements arranged thereon, such as pins for example can be designed differently.
- the drum comprises a first inlet and a second inlet, with a feed device being arranged at the first inlet.
- a feed device being arranged at the first inlet.
- the feed device comprises a hopper for receiving a powdery component, a second drive and a second agitator shaft coupled thereto and arranged in the hopper.
- the second agitator shaft comprises radially arranged agitator blades, which are arranged in an inlet area of the funnel, and the second agitator shaft has an axially aligned stirring rod, which is radially offset from an axis of rotation of the agitator shaft and is arranged in an outlet area of the funnel.
- stirring blades without a stirring rod or a stirring rod without stirring blades can also be arranged on the stirring shaft.
- a component that is supplied to the system via the supply device can be supplied using a gravimetric method.
- a gravimetric method In contrast to a volumetric method, this has the advantage that a supplied mass of one component can be set precisely, as a result of which a more precise mixing result can be achieved.
- an additional second conveying device is arranged in the drum on the same axis as the agitator shaft and the conveying device in order to guide a first component introduced into the drum via the inlet away from the inlet before the first component is mixed with further components.
- a system for applying a building material according to claim 1 offers the advantage that, for example, building structures can be built efficiently and cost-effectively as a result.
- the advantage of the arrangement proposed here lies in particular in the fact that the components are only mixed with one another shortly before the building material is applied. This is made possible by the fact that the mixer is arranged so that it can be moved via the traversing device, so that it can be brought to the position at which the building material is to be applied. Due to the direct application of the building material after the mixing process, a high-viscosity building material, such as concrete, can be used in the mixer without this high-viscosity building material having to be further conveyed or processed.
- the first component is a pumpable building material such as concrete
- the second component is a pumpable substance which contains a building material additive such as a concrete additive.
- the building material additive is a setting accelerator and/or a hardening accelerator.
- a pumpable building material and a building material additive offers the advantage that both the pumpable building material and the building material additive can be transported in a simple manner from a container to the mixer, with the mixing of these two substances creating a highly viscous building material which can be directly Manufacture of a building structure can be used.
- the traversing device is designed to be movable in the manner of a 3D printer, so that the system can be used to construct structures from the building material.
- Such systems in the form of 3D printers offer the advantage that entire structures can be produced from building material, such as building walls or the like. In this case, no formwork is necessary, and therefore the shape of the structure can also be selected much more freely.
- a method for producing a structure from building material comprising the steps of: mixing a pumpable building material, in particular concrete, and a pumpable substance which contains a building material additive, in particular a concrete additive, with a mixer; and applying the mixture with a traversing device.
- the concrete additive is a setting accelerator and/or hardening accelerator.
- the mixer is operated during mixing at a speed of more than 500 revolutions per minute, preferably at a speed of more than 650 revolutions per minute, particularly preferably at a speed of more than 800 revolutions per minute, particularly preferably at one Speed of more than 1000 revolutions per minute.
- pumpable concrete was mixed with a setting or hardening accelerator at speeds between 200 and 2000 revolutions per minute. It was found that when mixing at speeds below 500 revolutions per minute, a sufficiently homogeneous or smooth mixture is not achieved, so that the pumpable concrete and the pumpable accelerator mix insufficiently with one another. This led to hardening and hardening behavior that was difficult to control, since the insufficiently homogeneous mixture has areas with an above-average amount of additive and areas with a correspondingly insufficient amount of additive. This can lead to blockages in the mixer and/or imperfections in the applied mixture, such as areas of insufficient strength after a certain time after leaving the mixer.
- the average residence time of the mixture in the drum is less than 10 seconds, preferably less than 7 seconds, particularly preferably less than 4 seconds.
- the mean dwell time of the mixture in the drum is the average time that a particle stays in the drum (from the inlet of the drum to the outlet of the drum).
- An above-mentioned advantageous average residence time of at most a few seconds has the advantage that a mix of high or rapidly increasing viscosity can be conveyed, such as pumpable concrete mixed with setting accelerators and/or hardening accelerators.
- the mixture when the mixture is applied, the mixture is applied in a plurality of layers lying at least partially on top of one another.
- a new layer of the mixture is only superimposed on an existing layer during application when the existing layer has sufficient strength to retain its original shape.
- At least partially overlapping layers of the mixture are continuously built up during application, so that the structure is built up from building material in the manner of a 3D printer.
- Such methods offer the advantage that entire structures can be produced from building material, such as building walls or the like.
- such methods offer the advantage that no formwork is necessary and that the shape of the structure can therefore also be selected much more freely.
- the mixer 1 has a drive 3, a drum 2, an agitator shaft 4 and a conveyor device 5.
- the drum 2 has two inlets 6 and one outlet 7.
- the inlets 6 are in a first drum section 10, in which the agitator shaft is arranged and the outlet 7 is located on a second drum section 11, in which the conveyor device 5 is also arranged.
- two inlets 6 are arranged on drum 2 .
- the drum 2 has only one inlet.
- the components to be mixed can already be brought together before they are conveyed into the drum 2 via the inlet.
- the conveying device 5 is arranged directly after the agitator shaft 4 so that the mixture mixed by the agitator shaft 4 can be picked up directly by the conveying device 5 and conveyed through the outlet 7 out of the drum 2 .
- the conveying device 5 is designed as a conveying screw.
- the screw conveyor in this exemplary embodiment has two complete windings 9.
- the screw conveyor can be dimensioned or designed differently.
- the conveying device 5 and the stirring shaft 4 are arranged on the same axis in the drum 2 .
- the agitator shaft 4 is equipped with pins 8 so that when the agitator shaft rotates, a material to be mixed in the drum is moved by the pins 8 .
- an exemplary mixer 1 is again shown.
- a feeding device 12 is arranged at one of the inlets 6 in this mixer. This feed device 12 is suitable, for example, for introducing a powdered component into the drum 2 of the mixer 1 evenly and without clogging.
- the feeding device 12 which in 2 is arranged at one of the inlets 6, shown in more detail.
- the feed device 12 has a second drive 13 and a second agitator shaft 16.
- the second agitator shaft 16 is arranged in a funnel 19 so that it can rotate.
- the hopper 19 has an entrance portion 14 and an exit portion 15.
- stirring blades 17 are arranged on the second stirring shaft in the entrance portion of the hopper 19, and a stirring rod 18 is arranged in the exit portion 15 of the hopper 19 on the second stirring shaft 16.
- the agitator blades 17 are arranged radially on the second agitator shaft, so that they can convey a powdery component through the inlet area 14 of the hopper 19 .
- the stirring rod 18 is axially aligned with respect to the second stirring shaft 16 and radially offset from an axis of rotation of the stirring shaft 16 . As a result, this stirring rod 18 can prevent the outlet region 15 of the funnel 19 from becoming clogged.
- an exemplary mixer 1 is again shown with a feed device 12 at one of the inlets.
- a first component 20 and a second component 22 are fed to the mixer 1 via a first feed 21 and a second feed 23 respectively.
- the first component 20 can be a powdery component, which is fed via the first feed 21 into the hopper of the feed device 12
- the second component 22 can be, for example, a liquid or a pumpable substance, which is fed via the second feed 23 directly into the drum of the mixer 1 is guided.
- the mixture is conveyed by the conveying device 5 through the outlet 25 of the mixer.
- a system 30 for applying a building material includes a traversing device 31 and a first component 32 and a second component 33.
- the first component 32 and the second component 33 are fed to the mixer 1 via a first feed 34 and a second feed 35 .
- the mixer 1 includes an outlet 36 through which the building material can be applied.
- the mixer 1 can be moved by the moving device 31 .
- the traversing device 31, as shown in this exemplary embodiment can have an arm which is designed to be movable.
- a multi-articulated arm can be used to allow a more varied movement of the mixer 1 in space.
- the traversing device 31 is designed as a crane, as a robot, as a mobile device on wheels or caterpillars, or as a 3D printer.
- FIG. 6 an exemplary embodiment of a conveyor device 5 is shown.
- initially more than two turns 9 are formed.
- the windings 9 differ in their extent in the direction of the drive shaft, the windings 9 becoming narrower towards one end of the conveying device 5 .
- a delivery pressure of the delivery device 5 can be changed, depending on the alignment of the constriction of the windings 9.
- a cross section of a shaft of the conveyor device 5 is designed to be variable in the direction of the drive shaft.
- a volume for the material to be mixed becomes narrower towards one end of the conveying device 5 .
- a delivery pressure of the delivery device 5 can be changed, depending on the alignment of the constriction of the volume for the material to be mixed.
Claims (6)
- Système (30) servant à appliquer un matériau de construction, le système (30) comprenantun dispositif de déplacement (31),un premier composant (32),un deuxième composant (33), etun mélangeur (1) servant à mélanger le premier composant (32) et le deuxième composant (33), le mélangeur (1) comprenant un tambour (2) présentant au moins une entrée (6) et une sortie (7), un entraînement (3), une tige d'agitation (4) pour mélanger un produit à mélanger, qui est disposée dans le tambour (2) et qui est couplée à l'entraînement (3), un dispositif d'acheminement (5) étant disposé dans le tambour (2) et étant disposé sur un même axe que la tige d'agitation (4), l'élément d'acheminement (5) étant réalisé sous forme de vis sans fin, la vis sans fin présentant au moins deux spires (9), le mélangeur (1) étant disposé sur le dispositif de déplacement (31) et pouvant être déplacé par celui-ci de sorte qu'il peut être amené respectivement dans la position où le matériau de construction doit être appliqué,le premier composant (32) et le deuxième composant (33) pouvant être amenés au mélangeur (1) pour réaliser le matériau de construction, etdans lequel le matériau de construction produit à partir des composants (32, 33) peut être appliqué par l'intermédiaire de la sortie (36) du mélangeur (1),caractérisé en ce que les spires (9) se distinguent au niveau de leurs dimensions en direction de la tige d'agitation (4), les spires (9) se rétrécissant en direction d'une extrémité du dispositif d'acheminement (5) .
- Système (30) selon la revendication 1, dans lequel le dispositif d'acheminement (5) est directement consécutif à la tige d'agitation (4) de sorte que le produit à mélanger, mélangé par la tige d'agitation (4), peut être saisi directement par le dispositif d'acheminement (5) et peut être acheminé hors du tambour (2) à travers la sortie (7).
- Système (30) selon l'une quelconque des revendications précédentes, dans lequel le dispositif d'acheminement (5) et la tige d'agitation (4) sont disposés sur un même arbre d'entraînement, et dans lequel cet arbre d'entraînement peut être entraîné par l'entraînement (3).
- Système (30) selon l'une quelconque des revendications précédentes, dans lequel la tige d'agitation (4) et le dispositif d'acheminement (5) sont disposés côte à côte dans le tambour (2), la tige d'agitation (4) étant disposée sur une première partie de tambour (10) et le dispositif d'acheminement (5) étant disposé sur une deuxième partie de tambour (11), et dans lequel ladite au moins une entrée (6) est disposée sur la première partie de tambour (10) et la sortie (7) est disposée sur la deuxième partie de tambour (11).
- Système (30) selon la revendication 4, dans lequel la première partie de tambour (10) constitue avec la tige d'agitation (4) disposée dans celle-ci entre 50 % et 90 %, de préférence entre 60 % et 85 %, en particulier de préférence entre 70 % et 80 %, d'un volume du tambour (2) .
- Système (30) selon l'une quelconque des revendications précédentes, dans lequel le tambour (2) comprend une première entrée (6) et une deuxième entrée (6), et dans lequel un dispositif d'amenée (12) est disposé au niveau de la première entrée (6).
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK19208377.2T DK3646943T3 (da) | 2016-03-01 | 2017-03-01 | Fremgangsmåde til fremstilling af en struktur af byggemateriale |
EP19208377.2A EP3646943B1 (fr) | 2016-03-01 | 2017-03-01 | Procédé pour fabriquer une structure en matériau de construction |
EP19208375.6A EP3659699B1 (fr) | 2016-03-01 | 2017-03-01 | Système pour l'application d'un matériau de construction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16158056 | 2016-03-01 | ||
PCT/EP2017/054824 WO2017149040A1 (fr) | 2016-03-01 | 2017-03-01 | Mélangeur, système pour appliquer un matériau de construction et procédé pour fabriquer une structure en matériau de construction |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19208375.6A Division EP3659699B1 (fr) | 2016-03-01 | 2017-03-01 | Système pour l'application d'un matériau de construction |
EP19208375.6A Division-Into EP3659699B1 (fr) | 2016-03-01 | 2017-03-01 | Système pour l'application d'un matériau de construction |
EP19208377.2A Division EP3646943B1 (fr) | 2016-03-01 | 2017-03-01 | Procédé pour fabriquer une structure en matériau de construction |
EP19208377.2A Division-Into EP3646943B1 (fr) | 2016-03-01 | 2017-03-01 | Procédé pour fabriquer une structure en matériau de construction |
Publications (2)
Publication Number | Publication Date |
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EP3423178A1 EP3423178A1 (fr) | 2019-01-09 |
EP3423178B1 true EP3423178B1 (fr) | 2022-08-17 |
Family
ID=55451090
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Application Number | Title | Priority Date | Filing Date |
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EP19208375.6A Active EP3659699B1 (fr) | 2016-03-01 | 2017-03-01 | Système pour l'application d'un matériau de construction |
EP19208377.2A Active EP3646943B1 (fr) | 2016-03-01 | 2017-03-01 | Procédé pour fabriquer une structure en matériau de construction |
EP17707571.0A Active EP3423178B1 (fr) | 2016-03-01 | 2017-03-01 | Mélangeur, système pour appliquer un matériau de construction et procédé pour fabriquer une structure en matériau de construction |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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EP19208375.6A Active EP3659699B1 (fr) | 2016-03-01 | 2017-03-01 | Système pour l'application d'un matériau de construction |
EP19208377.2A Active EP3646943B1 (fr) | 2016-03-01 | 2017-03-01 | Procédé pour fabriquer une structure en matériau de construction |
Country Status (19)
Country | Link |
---|---|
US (1) | US20190047176A1 (fr) |
EP (3) | EP3659699B1 (fr) |
JP (2) | JP7089476B2 (fr) |
KR (2) | KR20220070330A (fr) |
CN (1) | CN108698001B (fr) |
AU (1) | AU2017225809B2 (fr) |
BR (1) | BR112018017136A2 (fr) |
CA (1) | CA3015856A1 (fr) |
CL (1) | CL2018002448A1 (fr) |
CO (1) | CO2018010008A2 (fr) |
DK (1) | DK3646943T3 (fr) |
ES (1) | ES2951846T3 (fr) |
MX (1) | MX2018010452A (fr) |
PT (1) | PT3646943T (fr) |
RU (1) | RU2735761C2 (fr) |
SA (1) | SA518392206B1 (fr) |
SG (1) | SG11201807491SA (fr) |
WO (1) | WO2017149040A1 (fr) |
ZA (1) | ZA201806381B (fr) |
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JP7117692B2 (ja) * | 2018-02-28 | 2022-08-15 | 大成建設株式会社 | 3dプリンタ用ノズル装置および3dプリンタ装置並びにこれを用いた建造物の構築方法、粘性材料の供給方法および製作物構築装置 |
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CN113958089A (zh) * | 2021-09-02 | 2022-01-21 | 绍兴文理学院元培学院 | 一种建筑物地坪散料装置 |
EP4151409A1 (fr) | 2021-09-21 | 2023-03-22 | Holcim Technology Ltd | Mélange de matériau cimentaire sec pour impression 3d |
EP4151408A1 (fr) | 2021-09-21 | 2023-03-22 | Holcim Technology Ltd | Mélange de matériau cimentaire sec pour impression 3d |
RU2767464C1 (ru) * | 2021-10-01 | 2022-03-17 | Общество С Ограниченной Ответственностью "Аркон Констракшн" | Система подготовки и подачи материала строительного 3d принтера |
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-
2017
- 2017-03-01 EP EP19208375.6A patent/EP3659699B1/fr active Active
- 2017-03-01 DK DK19208377.2T patent/DK3646943T3/da active
- 2017-03-01 RU RU2018125991A patent/RU2735761C2/ru active
- 2017-03-01 EP EP19208377.2A patent/EP3646943B1/fr active Active
- 2017-03-01 US US16/075,766 patent/US20190047176A1/en active Pending
- 2017-03-01 SG SG11201807491SA patent/SG11201807491SA/en unknown
- 2017-03-01 CA CA3015856A patent/CA3015856A1/fr active Pending
- 2017-03-01 JP JP2018545591A patent/JP7089476B2/ja active Active
- 2017-03-01 PT PT192083772T patent/PT3646943T/pt unknown
- 2017-03-01 KR KR1020227016257A patent/KR20220070330A/ko not_active Application Discontinuation
- 2017-03-01 WO PCT/EP2017/054824 patent/WO2017149040A1/fr active Application Filing
- 2017-03-01 ES ES19208377T patent/ES2951846T3/es active Active
- 2017-03-01 BR BR112018017136A patent/BR112018017136A2/pt not_active Application Discontinuation
- 2017-03-01 MX MX2018010452A patent/MX2018010452A/es unknown
- 2017-03-01 AU AU2017225809A patent/AU2017225809B2/en active Active
- 2017-03-01 KR KR1020187023238A patent/KR20180119568A/ko not_active Application Discontinuation
- 2017-03-01 EP EP17707571.0A patent/EP3423178B1/fr active Active
- 2017-03-01 CN CN201780013767.XA patent/CN108698001B/zh active Active
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2018
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- 2018-08-27 CL CL2018002448A patent/CL2018002448A1/es unknown
- 2018-09-21 CO CONC2018/0010008A patent/CO2018010008A2/es unknown
- 2018-09-25 ZA ZA2018/06381A patent/ZA201806381B/en unknown
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2021
- 2021-11-02 JP JP2021179368A patent/JP2022016472A/ja not_active Withdrawn
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DE20215662U1 (de) * | 2001-11-20 | 2003-01-02 | Tachus Ag | Betoniervorrichtung für den Tunnelbau |
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DK3646943T3 (da) | 2023-08-14 |
EP3659699A2 (fr) | 2020-06-03 |
KR20180119568A (ko) | 2018-11-02 |
JP2022016472A (ja) | 2022-01-21 |
AU2017225809A1 (en) | 2018-08-16 |
KR20220070330A (ko) | 2022-05-30 |
EP3659699B1 (fr) | 2024-05-08 |
EP3646943B1 (fr) | 2023-05-24 |
US20190047176A1 (en) | 2019-02-14 |
SA518392206B1 (ar) | 2023-01-18 |
RU2018125991A3 (fr) | 2020-09-01 |
AU2017225809B2 (en) | 2022-07-21 |
CN108698001A (zh) | 2018-10-23 |
CA3015856A1 (fr) | 2017-09-08 |
RU2735761C2 (ru) | 2020-11-06 |
CN108698001B (zh) | 2022-08-02 |
PT3646943T (pt) | 2023-07-27 |
EP3646943A3 (fr) | 2020-10-14 |
EP3646943A2 (fr) | 2020-05-06 |
EP3659699A3 (fr) | 2020-10-21 |
EP3423178A1 (fr) | 2019-01-09 |
WO2017149040A1 (fr) | 2017-09-08 |
SG11201807491SA (en) | 2018-09-27 |
JP7089476B2 (ja) | 2022-06-22 |
ZA201806381B (en) | 2019-07-31 |
CO2018010008A2 (es) | 2018-09-28 |
ES2951846T3 (es) | 2023-10-25 |
BR112018017136A2 (pt) | 2019-01-15 |
RU2018125991A (ru) | 2020-04-01 |
MX2018010452A (es) | 2019-03-28 |
CL2018002448A1 (es) | 2018-12-28 |
JP2019511972A (ja) | 2019-05-09 |
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