EP2283916A1 - Mischvorrichtung und -verfahren zur Herstellung einer homogenen und stabilen Suspension - Google Patents

Mischvorrichtung und -verfahren zur Herstellung einer homogenen und stabilen Suspension Download PDF

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Publication number
EP2283916A1
EP2283916A1 EP09167156A EP09167156A EP2283916A1 EP 2283916 A1 EP2283916 A1 EP 2283916A1 EP 09167156 A EP09167156 A EP 09167156A EP 09167156 A EP09167156 A EP 09167156A EP 2283916 A1 EP2283916 A1 EP 2283916A1
Authority
EP
European Patent Office
Prior art keywords
container
mixing
suspension
mixing according
solid
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.)
Withdrawn
Application number
EP09167156A
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English (en)
French (fr)
Inventor
Vygantas Kirejevas
Aram Kazarjan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bacterfield International SA
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Bacterfield International SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bacterfield International SA filed Critical Bacterfield International SA
Priority to EP09167156A priority Critical patent/EP2283916A1/de
Publication of EP2283916A1 publication Critical patent/EP2283916A1/de
Withdrawn legal-status Critical Current

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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
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • 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
    • B01F23/70—Pre-treatment of the materials to be mixed
    • 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
    • B01F23/70—Pre-treatment of the materials to be mixed
    • B01F23/713—Sieving materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4523—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through sieves, screens or meshes which obstruct the whole diameter of the tube
    • 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
    • B01F27/87—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the receptacle being divided into superimposed compartments
    • 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
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
    • 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
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
    • 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
    • B01F2101/44—Mixing of ingredients for microbiology, enzymology, in vitro culture or genetic manipulation

Definitions

  • the present invention relates to a method and an apparatus for producing a homogeneous and stable suspension.
  • GB 242,020 discloses an apparatus relating to the extraction, solution and mixture of soluble and insoluble substances.
  • the apparatus comprises a first vessel inserted in a second vessel wherein the sides or bottom of the first vessel is perforated allowing an impeller to move fluid from the first vessel to the second vessel.
  • US 4,089,050 discloses a device for mixing a powder in a liquid.
  • the mixture of liquid and powder is passed through an impeller and the dispersion obtained is discharged after having passed though a fine mesh grid.
  • the invention preferably seeks to mitigate, alleviate or eliminate one or more of the above mentioned disadvantages singly or in any combination by providing a mixing apparatus and method which efficiently produces homogeneous and stable suspension.
  • an apparatus for mixing at least two media such as a solid and a liquid medium, to produce a solid-liquid suspension
  • the apparatus comprising a container in which the mixing takes place, the container comprising: i) at least one inlet through which the solid medium enters into said container, ii) at least one inlet through which the liquid medium enters into said container, iii) rotating means, iv) at least one grid, and v) an outlet through which said solid-liquid suspension leaves the container.
  • the container may be also referred hereafter as blending tank, as the container is the tank where the mixing/blending of the solid medium and liquid medium take place.
  • the container has a capacity preferably between 1 and 100 liters, more preferably between 2 and 80 liters, even more preferably between 3-50 liters.
  • a suspension is herein defined as a system in which a solid medium, i.e. the dispersed phase, is dispersed in a liquid medium, i.e. the dispersing medium or continuous phase. Therefore, suspension may be also referred hereafter as a dispersion of a solid in a liquid. Generally, being a suspension not a colloid and therefore having a suspension a dispersed medium formed by solid particle with a size that allows precipitation, a suspension eventually settles over time if left undisturbed and produces sedimentation of the dispersed phase.
  • the apparatus through the synergic effect of the features disclosed allows for production of suspensions of a solid medium, such as dry powder, into a liquid medium, such as oil, which has a surprising homogeneity and stability.
  • Stabilization may be steric or electrostatic stabilization, i.e. based on size or based on the mutual repulsion as the particles of the dispersed phase have similar electrical charges. For example, small particle sizes have enormous surface areas which in turns produce steric stabilization.
  • a stable suspension is herein defined as a suspension where the mass of the particles of the dispersed phase is so low that their buoyancy is too weak to overcome the electrostatic repulsion between the particles of the dispersed phase, so as to avoid precipitation.
  • stability may be obtained by optimizing the ratio between the size of the particles in the dispersed phase and the viscosity of the continuous phase.
  • the particle size is crucial for obtaining stable suspension.
  • the features described according to the first aspect of the invention allows for reduction of the particle size of the dispersed phase to a minimum.
  • Minimum is intended as the minimum size obtainable taking into consideration the particle size at the inlet of the blending tank.
  • a grid is herein defined as any device which performs the function of reduction of lumps into a finely dived state.
  • the presence of the grid allows for reduction of the particle size of the dispersed phase to a value close to, if not equal to, the particle size introduced into the container, e.g. 1 ⁇ m.
  • the high stability of the suspension formed in the apparatus for mixing according to the first aspect of the invention is also obtained through the synergic effect of all the features of the apparatus which allows mixing without physical deformation of the particles in the dispersed phase, e.g. stretching.
  • physical deformation allows for increase of the Van der Waals forces over stabilization forces, e.g. electrostatic stabilization, resulting in coagulation and precipitation of the particles suspended.
  • stabilization forces e.g. electrostatic stabilization
  • the at least one grid allows for disaggregation of aggregate bodies of said solid medium into original particle size.
  • aggregate bodies are flakes, lumps and chunks of solid material. Disaggregation is defined as the separation of an aggregate body into its component parts.
  • the synergic effect of the mixing apparatus provides stable suspension also by avoiding particle cluster formation. Clusters, which would fall to the bottom of the suspension, or eventually float on the top if the particles are less dense than the dispersing medium, are avoided as the flow caused by the rotating means keeps the particles in suspension overcoming the gravitational forces.
  • a measure of stability of the suspension can be evaluated by measuring the sedimentation rate or the flocculation rate, by measuring turbidity or by direct particle counting.
  • a homogenous suspension is herein defined as a suspension where the concentration of particles of the dispersed phase is evenly distributed in the continuous phase.
  • a suspension may be therefore defined not-homogenous when depending of the sampling position in the suspension, different concentration of dispersed phase maybe found.
  • the rotating means is adapted to mix the at least two media and to generate a flow within the container going through said at least one grid.
  • the flow generated by the rotating means provides the advantage of further mixing the media and of destroying/disaggregating agglomerate bodies which may be formed during the mixing process.
  • the apparatus for mixing and the method according to the first and second aspect of the invention may be used as part of a vacuum infusion manufacturing line, for example for production of extruded food products.
  • the suspension produced for example between micro organisms and oil, could be used for manufacturing of probiotic based products by being introduced into a vacuum infusion system.
  • the apparatus for mixing allows for maximization of the dispersion of the probiotic micro organisms throughout the oil.
  • a further advantage of the present invention is that the mixing apparatus and method produce a stable and homogenous suspension so that it can be further processed without any further mixing intermediate step.
  • the at least one inlet through which the solid medium enters into the container comprises means for sifting said solid medium.
  • Means for sifting may be any device which separate out, by passing through a sieve or other straining devices, coarser elements.
  • means for sifting are meshes, nets, filters, strainers, wire screens, woven strands such as web or nets, made of metal, fibers or composites, such as polymer composites.
  • plastic meshes may be extruded, oriented, expanded or tubular.
  • Metal meshes can be woven, welded, expanded, photo-chemically etched or electroformed (screen filters) from steel or other metals.
  • the presence of sifting means ensures that only particles with small size, determined by the mesh size of the sifting means enter the container. The presence of sifting means also ensures that the particles will have a substantially equal particle size within a range between the value of the mesh size and the minimum value of the powder provided.
  • the sifting means also allows for a slow rate of addition. Gradual addition avoids the probability of flocculation of the suspension.
  • the sifting means can be designed accordingly to the needs as a function of the solid medium physical/chemical properties, such as average size, morphology and composition.
  • the cell size of the sifting grid may vary from 1 ⁇ m to 5 mm.
  • sifting means design e.g. type of rotating means used, size of the container, solid medium particle size distribution, liquid medium viscosity. Taking in consideration all the parameters an appropriate sifting means can be designed as to obtain after mixing a homogeneous and stable suspension.
  • the rotating means is located outside the container.
  • the container may be a rotating drum, such as a rotating kiln reactor.
  • the container may be journalled for rotation on bearings, while the rotation may be induced by an external variable speed motor, gear and rotating means though a fluid film bearings or rolling element bearings.
  • the container comprises a plurality of protrusions adapted to generate a non laminar flow, such as a turbulent flow within the container.
  • Protrusions may be any element inside the container with the function of generating non laminar flow.
  • Examples of protrusions are ribs or ribbons internally connected to the container.
  • Other examples are cavities, fins or blades located along the container.
  • protrusions may be also located along a central shaft fixed to the container which rotates together with the container. The rotation of the container comprising these protrusions generates non-laminar flow of the suspension internally contained.
  • the said rotating means is located inside the container.
  • the container may be a stationary drum having internal rotating elements, i.e. rotating means, therefore the bearings of the rotating part may be provided on a central shaft.
  • the rotating means When said rotating means is located inside the container, the rotating means comprises a plurality of protrusions generating swirling motions of the solid-liquid suspension.
  • the rotating means when the rotating means is located inside the container, the rotating means comprises a plurality of protrusions generating non laminar flow such as a turbulent flow within the container.
  • Rotating means is herein defined as rotating elements such as impeller, propeller, blades or rotating discs.
  • the function of these elements is to produce motion within the suspension present in the blending tank so as to generate swirling motion and produce a homogeneous and stable suspension.
  • rotating means rotates at speed between 1 and 1000 rpm, more preferably between 3 and 800 rpm, even more preferably between 5 and 500 rpm.
  • the rotating means when the rotating means is located inside the container the rotating means is or comprise an impeller.
  • the rotating means comprises an axial flow impeller. This imposes essentially bulk motion to the suspension as to provide optimal homogenization.
  • the rotating means comprises a radial flow impeller. This imposes essentially shear stress to the suspension so as to produce an optimal mixing in suspension with very viscous continuous phase, e.g. oil.
  • the apparatus for mixing according to the first aspect of the invention further comprises at least one storage tank for storing the solid medium and at least one storage tank for storing the liquid medium both connected to the container.
  • the apparatus for mixing according to the first aspect of the invention further comprises: i) at least one measuring device for measuring the solid medium, located along the connection between the at least one storage tank for storing the solid medium and the container, and ii) at least one measuring device for measuring the liquid medium, located along the connection between the at least one storage tank for storing the liquid medium and the container.
  • the apparatus for mixing further comprises controlling means for controlling the amount of media to be introduced into said container.
  • Controlling means may be opening and closing valves in or out of the storage tank for storing the solid or liquid medium or in or out of the measuring devices.
  • Controlling means may be also an electronic device which coordinates measuring devices with the needs in the containers.
  • the method for mixing at least two media in a container to produce a stable and homogeneous suspension comprises: introducing a solid medium into the container, introducing a liquid medium into the container, mixing the at least two media to generate a flow going through at least one grid.
  • the method further comprises sifting said solid medium while introducing it into said container.
  • the method further comprises: measuring a precise amount of the solid medium before introducing it into said container, and measuring a precise amount of the liquid medium before introducing it into the container.
  • Precise amount is the amount which is necessary in order to obtain a homogeneous and stable suspension by operating the apparatus for mixing according to the first aspect of the invention.
  • precise amount is also defined as the precise amount requested for further processing. So that it may be seen as a further advantage of the present invention to provide a mixing apparatus and method which produce stable and homogenous suspensions in the precise amount requested for further processing. Producing suspension in the precise amount needed in the further processing has the advantage that storage of the suspension is not required.
  • the production of the precise amount needed in the vacuum infusion process ensures that probiotic micro organisms are thoroughly mixed just before the particular batch of kibbles is exposed to vacuum. Using a precise amount also allows for minimal exposure to vacuum of the kibble.
  • a further advantage obtained by preparing the precise amount required by the following process is that this method avoids temperature increase or any other factors that might affect the dry powder suspended in the liquid for the whole production period in a large tank. This is particular relevant when the dispersed phase contains, for example micro organisms, and the continuous phase, oil.
  • the first, second aspect of the present invention may each be combined with any of the other aspects.
  • Figure 1 shows schematically a preferred embodiment of the invented homogenous suspension blending device.
  • the preferred embodiment of the invented device comprises of two storing means, one tank for storing raw dry powder (1) and one tank for storing raw oil (5).
  • the storing for raw dry powder (1) could have a storage size between 5-350 kg, depending on the capacity of the production line (10), and have to be made of a stable and neutral materials, suitable for storing micro-organisms and/or biological active material, such as stainless steel, polytetrafluoroetylen (PTFE) or food graded plastics.
  • PTFE polytetrafluoroetylen
  • the opening and closing of the outlet mechanisms (2,11) of these two storing tanks (1,5) are controlled by controlling means (3, 4).
  • the outlet mechanism (2) of the tank for storing raw dry powder(1) is controlled by a precise powder scaling system (3) and the outlet mechanism (11) of the tank for storing raw oil (5) is controlled by a precise oil measuring device (4), such as a weighting box or a pump with a flow counter. These are designed to measure precise amounts, of the materials to be blended, either by weight and/or by volume.
  • the powder scaling system (3) and the oil measuring device (4) could be controlled by a controlling mean such as a pre-programmed electronic control device (12).
  • a controlling mean such as a pre-programmed electronic control device (12).
  • information regarding the precise powder/oil ratios required for a batch cycle of a suspension with desired charactericts are pre-programmed and stored.
  • the precisely measured amount of raw powder and oil is transferred to the blending tank (7) through single or plurality of individual inlets.
  • the volume of the blending tank (7) in this preferred embodiment, could vary from 3-50 I, depending on the needs of the production plant, and be made of a range of materials such as stainless steel, plastic, glass or composite materials, and shapes such as cylindrical, conical, spherical or others.
  • the orientation of the blending tank is vertical, which is having the maximum inclination in respect to the direction of the suspension flow between the inlet of the powder and oil and the outlet of the suspension.
  • the blending tank may be positioned with a different degree of inclination, which may facilitate the flow of a suspension with the desired properties by means of gravity.
  • a different negative inclination may also be achieved by a particular shape of the blending tank, e. g. a conical shape.
  • the powder sifting device (6) a sifting grid with cell size, that could vary from 1 ⁇ m to 5 mm, is located between the powder scaling system (3) and the blending tank (7), preferably the sifting device (6) is mounted just before the powder submerges into the raw oil and/or suspension in the blending tank (7).
  • the sifting device (6) removes and/or breaks and/or mashes, e.g. sifts, oversized particles in the powder prior to the powder being introduced into the blending tank (7), hence ensuring that only small and equalised particle sizes of the powder enters the blending tank.
  • a broad range of suitable types of devices could be used such as pneumatic, centrifugal, reclaim, vibration sifters and in a range of suitable materials such as plastic, polytetrafluoroetylen (PTFE), glass, stainless steel, composite materials.
  • PTFE polytetrafluoroetylen
  • the blending tank (7) comprises a plurality of means, in this preferred embodiment these are: rotating means for mixing (8) that could have one or a plurality of rotor(s) and/or impeller(s), these could have different numbers and shapes of the blades depending on the chemical/physical parameters of the oils, powder and/or suspensions,
  • the blending tank (7) will further comprise one or a plurality of mixing grids (9) used to break the laminar flow and achieve non-laminar flow and/or turbulent flow in the blending and mixing process.
  • These means could further be used to mash and/or break and/or destroy flake formations, sedimentation and clotting which could appear from aggregation of particles during blending processes.
  • ribbons and/or ribs could be used in conjunction with the mixing grid(s) (9).
  • the design of the mixing grid(s) (9), ribbons and ribs (not shown) are determined by the design of the blending tank (7).
  • preferred size of the grid cells may vary from 1 mm to 5 cm.
  • a plurality of suspension outlet(s) (13) is/are connected to the blending tank (7) and used to transfer the final suspension product to manufacturing equipments or production plants (10).
  • FIG. 2 shows schematically the method used to achieve high homogeneity and dispersion stability of the final suspension, according to an embodiment of the invention.
  • a batch cycle starts by precisely measuring a required amount of raw oil for one run of the production line or manufacturing plant (20).
  • Raw oil from a storage tank (15) is precisely measured using an oil measuring device (18) such as a weighting box or a pump with a flow counter.
  • the amount of oil used in a batch cycle is determined by the needs of the production plant and could be up to the maximum capacity of the blending tank (19) according to one aspect of the invention.
  • the maximum capacity may vary from the maximum size of the blending tank may receive to an optimal capacity modulated to obtain optimal mixing flow, e.g. 3-50 I.
  • the size of the blending tank (19) is smaller if compared to what is normally used in an average production line. This provides the advantage of reducing flake formation, sedimentation and clotting.
  • the amount of raw oil, that should be precisely measured and taken out from the oil storing tank (15) for each batch cycle, may be stored in a pre-programmed electronic control device (16).
  • This electric control device (16) may also stores parameters on how much dry powder is needed for each batch and for different cycle.
  • the electric control device (16) could also be used to store information and control such parameters such as temperature and speed of mixing as well as other parameters that could be used to optimise the blending and mixing process in order to receive the desired property of the suspension, regarding homogeneity and dispersion stability.
  • the addition of the dry powder begins.
  • the amount of powder is preferable in the range of 10g to 5kg per batch cycle. In a preferred embodiment 40g of powder per litre of raw oil may be used.
  • the precise amount of powder, from a dry powder storing tank (14), is measured using a precise powder scaling system (17) controlled by an electronic control device (16).
  • the powder When the required amount of dry powder is measured, the powder is transferred to a sifting device. Sifting the powder before introducing it to the raw oil and/or suspension will equalize the particle size, of the already small particles in the powder, leading to better solubility and therefore a better homogeneity and dispersion stability of the final suspension. After being sifted, the powder is gradually introduced and mixed with the raw oil and/or suspension in the blending tank (19) hence avoiding flocculation and therefore achieving the wanted dispersion stability and homogeneity of the suspension.
  • different means such as grids that could be used in conjunction with ribbons and/or ribs, are used to break laminar flow and to create and maintain a preferred non-laminar flow and/or turbulent flow in the blending tank (19).
  • the ribbons and ribs could be used as extra features in conjunction with the grids to further modulate the flow in the tank.
  • the grid means could also be used for break and/or mash flake formations, sedimentation and/or clotting that could appear in the suspension during the blending process.
  • the size, shape and material of the blending tank (19), mixing means and means for achieving non-laminar flow and/or turbulent flow could vary from different production and batches depending on the need of the production line (20) and the physical and/or chemical properties of the raw oil and/or the dry powder being used.
  • the blending tank will be emptied through one or a plurality of outlets and the suspension transferred to the production line or manufacturing plant (20).

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
EP09167156A 2009-08-04 2009-08-04 Mischvorrichtung und -verfahren zur Herstellung einer homogenen und stabilen Suspension Withdrawn EP2283916A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09167156A EP2283916A1 (de) 2009-08-04 2009-08-04 Mischvorrichtung und -verfahren zur Herstellung einer homogenen und stabilen Suspension

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Application Number Priority Date Filing Date Title
EP09167156A EP2283916A1 (de) 2009-08-04 2009-08-04 Mischvorrichtung und -verfahren zur Herstellung einer homogenen und stabilen Suspension

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CN107159022A (zh) * 2017-07-12 2017-09-15 光大环保技术研究院（南京）有限公司 一种混合配料装置
CN108002644A (zh) * 2017-11-29 2018-05-08 宁波江北峰尚环保设备有限公司 用于水的过滤方法
CN108934378A (zh) * 2018-06-28 2018-12-07 罗珍香 农业用灌溉施肥装置
CN109012322A (zh) * 2018-08-21 2018-12-18 王维春 一种畜牧业用消毒液配制装置
CN109070023A (zh) * 2017-01-03 2018-12-21 株式会社Lg化学 溶解混合器
CN109331700A (zh) * 2018-11-28 2019-02-15 泉州朔康工业设计服务有限公司 一种高效率生物肥料搅拌罐
CN113416606A (zh) * 2021-05-12 2021-09-21 黄仁焕 一种基于无损筛分的沉香提取物制备装置
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CN108002644A (zh) * 2017-11-29 2018-05-08 宁波江北峰尚环保设备有限公司 用于水的过滤方法
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CN109012322A (zh) * 2018-08-21 2018-12-18 王维春 一种畜牧业用消毒液配制装置
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CN113416606A (zh) * 2021-05-12 2021-09-21 黄仁焕 一种基于无损筛分的沉香提取物制备装置
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