EP4045177A1 - Mélangeur - Google Patents

Mélangeur

Info

Publication number
EP4045177A1
EP4045177A1 EP20792649.4A EP20792649A EP4045177A1 EP 4045177 A1 EP4045177 A1 EP 4045177A1 EP 20792649 A EP20792649 A EP 20792649A EP 4045177 A1 EP4045177 A1 EP 4045177A1
Authority
EP
European Patent Office
Prior art keywords
mixer
module
tangential
input
section
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.)
Pending
Application number
EP20792649.4A
Other languages
German (de)
English (en)
Inventor
Oscar Centelles Vilalta
Carlos Chumillas Villalba
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.)
Chumillas Tech S L
Chumillas Technology SL
Original Assignee
Chumillas Tech S L
Chumillas Technology SL
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 Chumillas Tech S L, Chumillas Technology SL filed Critical Chumillas Tech S L
Publication of EP4045177A1 publication Critical patent/EP4045177A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B01F23/30—Mixing gases with solids
    • 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
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/103—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components with additional mixing means other than vortex mixers, e.g. the vortex chamber being positioned in another mixing chamber
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/25—Mixing by jets impinging against collision plates
    • 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
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4338—Mixers with a succession of converging-diverging cross-sections, i.e. undulating cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B01F33/811—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
    • 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
    • B01F35/71745—Feed mechanisms characterised by the means for feeding the components to the mixer using pneumatic pressure, overpressure, gas or air pressure in a closed receptacle or circuit system
    • 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
    • B01F35/718—Feed mechanisms characterised by the means for feeding the components to the mixer using vacuum, under pressure in a closed receptacle or circuit system
    • 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
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties

Definitions

  • the present invention refers to a mixer by gas flow, for example for mixing ceramic components with their additives, which form a raw material for ceramics.
  • Patents such as EP2550242 describe a way to mix the different components and additives of a ceramic products, such as a tile.
  • This mixing apparatus comprises a series of concentric cyclones, with two inputs in the center and a radial output.
  • This system is not easily configurable due to the function of a variable speed conditioned by the radius, meaning that a high initial speed is required, which can break the particles, to prevent the lower output speed from depositing the material.
  • CN207288885U is considered the closest prior art. It refers to an airflow mixer that joins several metallic powders in a sintering process. However, it requires that the air traverses the mixer at high velocity, eroding the insides and producing loud noises.
  • the invention consists of a mixer according to the claims. It ' s different realizations solve the problems from the prior art and provide noteworthy advantages.
  • the mixer is made from a plurality of modules and allows mixing granulated or powdered components using a carrier gas.
  • the modules comprise a common part formed by a first cylindrical section in which at least one tangential entry (usually one, but several in the input module) is defined, a narrowing section and a cylindrical final section with a smaller radius. This final section is connected to the tangential input of the next module or, in a case of the last module, to the output of the mixer.
  • the gas flux is generated by a vacuum or blowing pump of the carrier gas, placed at the appropriate point (downstream or upstream, depending on the type of pump).
  • tangential input comprises a longitudinal component to the module, i.e. it is not fully transverse.
  • an insert facing the tangential input of one or more modules can be installed.
  • This insert can be adjustable, meaning that the distance between the insert and the tangential input can be varied.
  • it can be mounted on a threaded shank which can be rotated from the outside of the module to advance it from the module’s wall.
  • the tangential inputs of two consecutive modules are oriented alternately between levogyre and dextrogyre.
  • the different modules will be positioned at a small angle regarding the horizontal, with the tangential input at a higher point than the intake of the end part.
  • a new improved mixer with just one module is also sought. It contains a single module with an insert facing the tangential input, as previously defined. This mixer can be also used as several modules to better improve efficiency.
  • Figure 1 Example of the mixer with six modules.
  • Figure 2 Detail of a main module in Figure 1.
  • Figure 3 Detail section of a module example showing its insert.
  • the mixer of the invention comprises a series of modules (1 ,2,3):
  • An inlet module (1) with at least one inlet component, including a carrier inlet gas which will usually be the air.
  • the carrier gas is filtered to prevent the introduction of an external material.
  • Figure 1 represents a plurality of tangential inputs (4) in the input module (1), but it must be considered that there may be a single common tangential input (4) through which all mixture components enter, each from its own reservoir, so they are premixed. In this case, the input module (1) is indistinguishable from the main module (2).
  • a series of the main modules (2) is installed after the input module (1). These main modules (2) are repeated as many times as necessary to obtain the mix. Optionally, they end in an output module (3), from where the gas and the mixed components exit the mixer.
  • the process method of the expelled gas and its treatment (cyclone, chemical/physical treatment, etc.) is not a part of this invention.
  • carrier gas flux that runs through all modules (1 ,2,3), which can be generated by suction or by blowing. Preferably, it will be generated by the suction from downstream of the output module (3).
  • Figure 1 represents how the modules (1,2,3) are similar and the small elements are those who produce the differentiation.
  • the main difference between the so- called output module (3) and the main modules (2) is the angle of its outlet, proving that it is optional.
  • the exact size of the modules (1,2,3) may also be different.
  • the input module (1) can also be similar to the main module (2).
  • FIG. 2 represents an example of a main module (2), which will be used to explain all the rest of the modules (1,2,3).
  • This main module (2) consists of a cylindrical first section (5), a narrowing section (6) which reduces the stage (usually of a conical shape) and a final section (7) with a circular shape, through which the carrier gas passes towards the next module (1,2,3) and which links to the next module (1,2,3).
  • the length and curvature of the final section (7) may be changed from the one shown. For instance, it can be longer or comprise a length of tube.
  • the union between the final section (7) and the adjacent module (1,2,3) is made at a tangential angle, in order to generate a vortex in the module (1,2,3).
  • a series of top and bottom entries for each module will be situated alternately to create sequences of levogyre and dextrogyre vortices.
  • Figure 3 points out the presence of an insert (8) in the first section (5) of a main module (2), aligned with the final section (7), in order to increase the turbulence at the entrance to the section.
  • This insert (8) can be stationary or installed over a sliding support (9), such as could be a threaded shank. Thereby the distance between the inlet of the final section (7) and the insert (8) can be regulated.
  • (1.2.3) is tilted, making not only the carrier gas to enter in at a tangential angle, but also includes a longitudinal component, i.e. , that the input is not fully transverse to the module
  • the optimal angle with the longitudinal axis of the module will be between 10° and 65°, pointing slightly towards the final section (7), depending on the material.
  • a second embodiment of the invention comprises a single module (1 ,2,3), with an insert (8) facing all or part of the tangential inputs (4). This embodiment also achieves the results sought, although several modules (1,2,3) will improve the result.
  • Figure 1 shows that the material inlets are situated in the input module (1). However, there may be additional (unrepresented) inlets in one or more main modules (2), which can be connected to the previous module (1.2) and to one or more additional tangential (4) inlets. This additional inlet allows to introduce other components of the mixture, after the mixing process had started.
  • the material from these additional inlets can have the origin from one or more previous module (1,2), meaning that this material has already been pre mixed.
  • the optimal insert (8) is shown in Figure 3 and has his head section (10) oriented towards the bottom section (7) of the previous module (1.2) roughly conical in shape to deflect the component and the carrier gas flows.
  • the shape at the other end is less relevant, but it is preferred to use the curve shape to reduce the noise, turbulences and a pressure loss.
  • the interior of the different modules is made of erosion resistant material, i.e., stainless steel.
  • the initial material input comes from dosing equipment, usually with mass flow sensors.
  • Each tangential input (4) of the input module (1) can come from a single tank or from multiple tanks gathered in a single input.
  • a cyclone or some other type of decanter of the particles carried by the gas flow there is a cyclone or some other type of decanter of the particles carried by the gas flow. If necessary, sensors or samplers can be integrated to verify that the mixture is suitable, and if it is necessary to recirculate it, either through the all modules or just from an intermediate main module (2).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Confectionery (AREA)

Abstract

Mélangeur, pour différents composants de matériaux granulaires ou en poudre utilisant un gaz vecteur, comprend une pluralité de modules (1, 2, 3), comprenant chacun : une première section cylindrique (5) dans laquelle au moins une entrée tangentielle (4) est définie ; une section de rétrécissement (6) ; et une section cylindrique finale (7) avec un rayon plus petit, reliée à l'entrée tangentielle (4) du module suivant (1, 2, 3) ou à la sortie du mélangeur ; et un soufflage ou une pompe à vide du gaz vecteur. Un mélangeur comprend un module unique (1, 2, 3) comprenant un insert (8) faisant face à l'entrée tangentielle (4).
EP20792649.4A 2019-10-18 2020-10-16 Mélangeur Pending EP4045177A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201930927A ES2820148B2 (es) 2019-10-18 2019-10-18 Mezclador
PCT/EP2020/079210 WO2021074377A1 (fr) 2019-10-18 2020-10-16 Mélangeur

Publications (1)

Publication Number Publication Date
EP4045177A1 true EP4045177A1 (fr) 2022-08-24

Family

ID=72895980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20792649.4A Pending EP4045177A1 (fr) 2019-10-18 2020-10-16 Mélangeur

Country Status (3)

Country Link
EP (1) EP4045177A1 (fr)
ES (1) ES2820148B2 (fr)
WO (1) WO2021074377A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345841A (en) 1980-06-20 1982-08-24 Geosource Inc. Multi-stage centrifugal mixer
JPS60161722A (ja) * 1984-01-31 1985-08-23 Mita Ind Co Ltd 粉体の気流混合方法およびその装置
BR8807535A (pt) * 1987-05-29 1990-05-22 Nordson Corp Processo e aparelho para mistura de po e aparelho para estabelecer e ajustar a razao de mistura de pos e para mistura dos pos
US6746511B2 (en) * 2002-07-03 2004-06-08 Inco Limited Decomposition method for producing submicron particles in a liquid bath
IT1398853B1 (it) 2010-03-23 2013-03-21 Lb Officine Meccaniche Spa Metodo per preparare materiale ceramico in polvere alla propria formatura
WO2016044749A1 (fr) * 2014-09-19 2016-03-24 Nanosynthesis Plus. Ltd. Procédés et appareils servant à produire des nanostructures dispersées
CN105903963B (zh) * 2016-06-14 2018-07-06 电子科技大学 一种块材合金制备系统及其制备方法
CN207288885U (zh) * 2017-07-10 2018-05-01 向勇 金属粉末混合装置及高通量金属合金制备系统

Also Published As

Publication number Publication date
ES2820148A1 (es) 2021-04-19
WO2021074377A1 (fr) 2021-04-22
ES2820148B2 (es) 2023-07-28

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