EP3838389A1 - Dispositif d'incorporation des matières pulvérulentes, en particulier des matières pulvérulentes explosives de poussière, dans un liquide, en particulier facilement inflammable - Google Patents

Dispositif d'incorporation des matières pulvérulentes, en particulier des matières pulvérulentes explosives de poussière, dans un liquide, en particulier facilement inflammable Download PDF

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Publication number
EP3838389A1
EP3838389A1 EP19216645.2A EP19216645A EP3838389A1 EP 3838389 A1 EP3838389 A1 EP 3838389A1 EP 19216645 A EP19216645 A EP 19216645A EP 3838389 A1 EP3838389 A1 EP 3838389A1
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EP
European Patent Office
Prior art keywords
powder
liquid
pump
pressure
liquid circuit
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Withdrawn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
EP19216645.2A
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German (de)
English (en)
Inventor
Markus Bär
Peter Deininger
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP19216645.2A priority Critical patent/EP3838389A1/fr
Priority to EP20821297.7A priority patent/EP4076716A1/fr
Priority to BR112022012039A priority patent/BR112022012039A2/pt
Priority to PCT/EP2020/086243 priority patent/WO2021122610A1/fr
Priority to CN202080086528.9A priority patent/CN115151338A/zh
Priority to US17/757,459 priority patent/US20230038859A1/en
Publication of EP3838389A1 publication Critical patent/EP3838389A1/fr
Withdrawn legal-status Critical Current

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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
    • B01F23/50—Mixing liquids with solids
    • B01F23/59—Mixing systems, i.e. flow charts or diagrams
    • 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
    • B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/52—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle with a rotary stirrer in the recirculation tube
    • 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
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2113—Pressure
    • 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
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/833—Flow control by valves, e.g. opening intermittently

Definitions

  • the invention relates to a device for incorporating powder substances, in particular powder substances capable of dust explosion, into an, in particular highly flammable, liquid and a corresponding method according to the preamble of claim 1 or claim 12.
  • Hollow plastic spheres in powder form are introduced into liquids in order to reduce the density of the liquids. Powders are sprinkled into the liquid and stirred in. Due to the physical properties of a powder or a powder-air mixture and the associated risk of dust explosion, this is often not possible or not readily possible in the case of lightweight fillers.
  • dust-explosive powder materials are sprinkled into solvent-containing liquids, the solid passes through an inflammable gas phase protruding above the liquid (e.g. from evaporated solvent) and there can lead to the ignition of the gas or a gas mixture.
  • the invention is therefore based on the object of providing a device and a method for incorporating, in particular dust explosive, powder substances into an, in particular highly flammable, liquid which enables a homogeneous mixture to be produced in a safe and at the same time inexpensive manner to produce the powder and the liquid, with no mixing of solvent vapor and powder can occur, so that ignition of There is no solvent vapor and / or liquid and thus an explosion is avoided.
  • An essential idea of the invention is that a homogeneous mixture of, in particular, dust-explosive powder materials and a liquid, in particular a flammable or highly inflammable liquid, can be ensured under safe circumstances.
  • the device makes it possible to work the powder material directly into the liquid without the powder material having to pass through a layer of flammable (solvent) vapor.
  • Flammable vapors can be understood to mean, for example, solvent vapors that arise from the evaporation of one or more solvents contained in the liquid.
  • the device according to the invention prevents the formation of such vapors, so that the process of introducing the powder substance into the liquid can be carried out safely.
  • the powder feed line is arranged on a pump inlet side and fluidly connected via a connection to the pipeline system of the liquid circuit, the distance between the connection of the powder feed line and a pump inlet of the pump being a maximum of 70 cm, more preferably less than 50 cm.
  • a ratio of a diameter of the pipeline system of the liquid circuit to a diameter of the powder feed rate is 2.5: 1.5.
  • the ratio can also deviate from the value 2.5: 1.5, for example in order to compensate for physical properties such as the viscosity of the liquid and / or a pump capacity of the pump.
  • the pump in particular a rotary lobe pump, is designed to allow a liquid to circulate in the liquid circuit in such a way that a negative pressure on the pump inlet side sucks the powder from the powder container through the powder feed line into the liquid circuit by means of a gas flow.
  • the liquid circuit further comprises at least one, preferably active, homogenizer, in particular a chopper, that does this is designed to homogenize a mixture of the powder and the liquid, wherein the homogenizer is preferably arranged on a pump outlet side, and wherein the homogenizer is preferably a maximum of 30 cm, more preferably less than 25 cm on a pump outlet side from a pump outlet of the pump.
  • at least one, preferably active, homogenizer in particular a chopper, that does this is designed to homogenize a mixture of the powder and the liquid
  • the homogenizer is preferably arranged on a pump outlet side, and wherein the homogenizer is preferably a maximum of 30 cm, more preferably less than 25 cm on a pump outlet side from a pump outlet of the pump.
  • An active homogenizer can also be actively controlled and / or regulated in order to mix as homogeneously as possible, depending on the liquid and / or powder used. In one embodiment it is possible, for example, that a speed of an impeller of the homogenizer is actively increased the higher the viscosity of the liquid and / or that the speed of the impeller of the homogenizer is adapted to a change in viscosity during a mixing process.
  • the liquid circuit further comprises at least one pressure measuring device, in particular comprising a differential pressure measuring device, which is designed to detect a pressure on the pump inlet side and / or the pump outlet side in the liquid circuit, and wherein a pressure difference of a pressure on the pump inlet side and a pressure at the pump outlet side is in a range of -10 - -600 mbar, preferably -100 - -400 mbar.
  • the detected variable in particular the differential pressure
  • the detected variable can be used for further (optimization) processes of a mixing process.
  • the pressure in the pipeline system it is possible to quickly and reliably identify damage, for example a leak in the fluid circuit and / or damage to the pump.
  • the powder feed line comprises a control valve which is designed to continuously regulate a powder flow and / or a powder flow change in the liquid circuit.
  • the control valve can close when the pressure is too high and / or open only when the differential pressure is applied to the pump. Furthermore, the continuous regulation and / or control of the control valve enables an amount of the powder substance to be incorporated into the liquid to be regulated or compensated for via a powder flow and / or a change in powder flow. What is achieved thereby is that the proportion of the powder in the liquid / powder mixture can be controlled and / or regulated in a controlled manner via the control valve and accordingly optimized.
  • Powder flow is to be understood as an amount of powder material which is conveyed through the powder feed line in a time interval.
  • “Change in powder flow rate” means a change in “powder flow rate” over time. A change in the powder flow rate is caused in particular by a change in the pressure in the liquid circuit.
  • further control valves can also be present on and / or in the powder feed line.
  • the pressure measuring device comprises a computing unit, wherein the control valve is communicatively connected to the computing unit, and wherein the computing unit is designed to continuously control the control valve.
  • control valve regulates the powder flow and / or the powder flow change continuously by means of the computing unit based on a programmed function and / or on a pressure difference between a pressure on the pump inlet side and a pressure on the pump outlet side.
  • a control via a programmed function allows, for example, the powder flow of the powder material to be varied over time (of a mixing process) via a corresponding control or regulation of the control valve.
  • the powder container comprises a conveying line which is designed to convey the powder substance to be incorporated by means of a conveying pump, in particular a membrane pump, from a powder feed station into the powder container.
  • a conveying pump in particular a membrane pump
  • Powders are usually bought in sacks.
  • One and / or more bags of powder material can be introduced into the powder feed station in such a way that the powder material is conveyed into the powder container by means of the feed pump without creating a dust load for an employee and / or in the environment in which the device is located.
  • the powder container and / or the powder feed station comprises at least one gas supply line which is designed to supply a gas, in particular inert gas, to the powder material in such a way that the powder material is fluidized.
  • the fluidization of the powder material with a gas in particular with an inert gas, enables the powder material to be easily conveyed by the pump and / or the feed pump without clogging and / or clumping occurring.
  • a gas in particular with an inert gas
  • inert gas prevents a fire from breaking out and / or an explosion, since inert gases are very inert.
  • the powder material is fluidized by supplying a gas, preferably inert gas, before being sucked in.
  • a gas preferably inert gas
  • the fluidization of the powder material with a gas in particular with an inert gas, enables the powder material to be optimally conveyed by the pump and / or the feed pump and to prevent clumping and / or clogging.
  • a gas in particular with an inert gas
  • inert gas prevents a fire from breaking out and / or an explosion, since inert gases are very inert.
  • the mixing of the liquid and the powder material in the liquid circuit takes place actively by a homogenizer, in particular a chopper, a mixture being created by the mixing.
  • the proportion of powder material introduced into the mixture is 0.1-10% by weight, preferably 0.1-5% by weight, 0.1-2.5% by weight, 0.1-1.5% by weight, 0.2-1.2% by weight. -%, especially preferably 0.3-0.8% by weight and / or 2.5-50% by volume, preferably 5-45% by volume, 7.5-40% by volume, 10-35% by volume, 15- 35% by volume, in particular 20-35% by volume.
  • the controlled introduction of the powder substance into the liquid in the liquid circuit takes place via a continuously adjustable control valve, the control valve via a computing unit based on a programmed function and / or on a pressure difference between a pressure on the pump inlet side and a pressure on the pump outlet side, regulates a powder flow rate and / or a powder flow rate change in such a way that a proportion of powder material to be incorporated can be optimized.
  • the liquid is formed by a flammable liquid, in particular a liquid with ATEX classification (Directive 2014/34 / EU), the liquid preferably having a viscosity of 500 mPas - 3000 mPas, preferably 1000 mPas - 1800 mPas, at 50 ° C.
  • viscosity is preferably understood to mean a viscosity which is measured using a Physica MCR 301 plate-plate rheometer with a measuring gap of 0.5 mm in accordance with DIN 53019-1. Compliance with the ATEX guidelines ensures the necessary safety when carrying out the process.
  • the liquid preferably contains at least one solvent, in particular an organic solvent, preferably selected from the list consisting of white spirit, isobutanol, benzene, toluene, xylene, ethyl acetate, butyl acetate, acetone, methyl ethyl ketone and cyclohexanone, in particular xylene.
  • the proportion of solvent is preferably 3 to 30% by weight, in particular 5 to 20% by weight, based on the total weight of the liquid.
  • the liquid preferably contains at least one additive selected from the list consisting of epoxy resin, a polyurethane compound and an alkyd resin AH.
  • the proportion of additive is preferably 5-60% by weight, in particular 10-50% by weight, preferably in particular 20-40% by weight, based on the total weight of the liquid.
  • the temperature of the liquid is preferably from 30 to 75.degree. C., in particular from 40 to 60.degree.
  • the powder material (31) comprises, in particular closed-pore, wooden balls made of plastic, the hollow balls preferably having a particle size of 20 ⁇ m-140 ⁇ m, more preferably 25 ⁇ m-55 ⁇ m.
  • the hollow spheres can enclose a gas and thereby reversibly deform their volume when there is a change in an ambient pressure and / or an ambient temperature.
  • Fig. 1 is a schematic representation of the device for incorporating powder substances, in particular powder substances capable of dust explosion, in a, in particular highly flammable, liquid.
  • the powder material 31 can comprise wooden balls made of plastic. These hollow spheres have a particle size of, for example, 20 ⁇ m-140 ⁇ m, preferably 25 ⁇ m-55 ⁇ m.
  • Hollow spheres within the meaning of the present invention are preferably microspheres with a cavity volume of at least 30%, in particular at least 50%, in particular at least 75% of the total volume of the individual microsphere, which contain at least one gas in this cavity.
  • At least one gas encompasses pure gases and gas mixtures of two or more gases.
  • the at least one gas is preferably selected from air, carbon dioxide, oxygen, nitrogen, helium, neon, argon or xenon, any organic compounds that are gaseous at room temperature, such as hydrocarbons, or else halogenated hydrocarbons.
  • Hydrocarbons which are gaseous at room temperature are preferably C1-C5 hydrocarbons which are branched or unbranched (methane to pentane). Air, isobutane and isopentane are particularly preferred, and isopentane is most preferred.
  • Microspheres which have a single central cavity filled with gas / gases are preferred.
  • They are preferably closed-pore microspheres.
  • They are preferably expanded microspheres.
  • Preferred materials for the microspheres are natural and synthetic, in particular synthetic, polymers or copolymers, particularly preferably synthetic copolymers, most preferably cyanoacrylates and polylactides.
  • the density of the microspheres is preferably less than 100 kg / cm3.
  • the density of the microspheres is particularly preferably between 20 and 100 kg / cm3, most preferably between 20 and 50 kg / cm3.
  • the powder material 31 is introduced into a powder application station 40.
  • a gas preferably an inert gas, can be introduced into the powder application station 40 through a gas feed line 50 into the powder application station 40. It is thereby achieved that the powder material 31 is fluidized in the powder application station 40.
  • the powder material 31 can be conveyed through a conveying line 42 into a powder container 30 by means of a conveying pump 41.
  • the feed pump 41 can comprise a diaphragm pump.
  • the powder container 31 has a volume of 2000 l.
  • the powder container 31 may have a shape that tapers downward.
  • the shape can be designed in such a way that the powder container 31 tapers towards an outlet, in particular a powder outlet, on the underside of the powder container 31.
  • the powder container 31 can have a breathing line 35.
  • the breathing line 35 is preferably attached to an upper side of the powder container 31.
  • the breathing line 35 is used to equalize the pressure in the powder container 31 with an ambient pressure in an environment outside the powder container 31.
  • a filter 35b can be provided on the breathing line 35, which prevents the powder 31 from escaping through the breathing line 35.
  • the breathing line 35 comprises at least one pressure relief valve 35a. The pressure relief valve 35a prevents too high a pressure from building up in the powder container 31.
  • the powder container 31 has a gas supply line 50. It is thereby achieved that the powder material 31 is fluidized in the powder container 31 by supplying a gas, in particular an inert gas.
  • the fluidization of the powder material 31 in the powder container 30 can take place alternatively or additionally, in particular afterwards, to the fluidization of the powder material 31 in the powder application station 40.
  • the powder container 30 has a scale for the internal weighing of the powder material 31.
  • the powder container 30 has an internal sensor device, the sensor device serving to record atmospheric data, in particular a temperature and / or a pressure and / or a gas concentration, in the powder container 30.
  • a powder feed line 32 is attached to the outlet of the powder container 30 in a fluid-conducting manner.
  • the powder feed line 32 enables the powder material 31 to be fed into the liquid circuit 10.
  • the liquid circuit 10 comprises a liquid container 11, a pipeline system 12 and at least one pump 13.
  • the liquid circuit 10 is designed so that a liquid can circulate through the liquid circuit 10 by means of the pump 13.
  • the direction of flow of the liquid in the liquid circuit is indicated by the arrows 17 in FIG Fig. 1 shown.
  • the liquid comprises at least one alkyd resin AH.
  • alkyd resin AH is preferably an alkyd resin AH as described under the term “ Alkydharze “in Römpp Chemie Lexikon, online version, Georg Thieme Verlag, accessed on 04 November 2018 .
  • the alkyd resins are preferably air-drying and oxidatively drying alkyd resins, in particular linseed oil, soybean oil, safflower oil or ricinic alkyd resins.
  • the powder supply line 32 is arranged on a pump inlet side 13a and connected in a fluid-conducting manner to the pipeline system 12 of the liquid circuit 10 via a connection 33.
  • the distance between the connection 33 of the powder feed line 32 and a pump inlet of the pump 13 is a maximum of 70 cm, more preferably less than 50 cm. Depending on the type of pump and / or the pump output of the pump 13, this distance can vary. It is essential that the solid is introduced takes place essentially immediately in front of the pump 13 on a pump inlet side 13a of the liquid circuit.
  • a homogenizer 14 which is designed to actively mix the liquid with the powder material 31, in particular the powder material 31 which is explosive in particular, and / or to actively wet the powder material 31.
  • the homogenizer 14 is designed as a chopper with at least one rotatable impeller.
  • the pump 13 is designed as a rotary lobe pump.
  • a negative pressure on the pump inlet side 13 a sucks the powder material 31 from the powder container 30 through the powder feed line 32 by means of a gas flow in order to work the powder material into the liquid in the liquid circuit 10.
  • a differential pressure applied to the pump 13 is measured by means of a pressure measuring device 15.
  • the differential pressure results from a pressure on the pump inlet side 13a and a pressure on the pump outlet side 13b.
  • the powder feed line 32 has a control valve 34.
  • the control valve 34 is designed to dose an amount of the powder 31 to be introduced into the liquid.
  • the control valve 34 can be controlled, for example, by a computing unit 16.
  • the control valve 34 is continuously regulated by means of the computing unit 16 based on a programmed function and / or on a pressure difference between a pressure on the pump inlet side 13a and a pressure on the pump outlet side 13b.
  • the amount of powder material 31 to be incorporated can either be controlled or regulated via a powder flow and / or the change in powder flow can be compensated for when a powder flow changes (due to a change in the pressure in the liquid circuit 10). It is conceivable, for example, that introducing a first portion of the powder material 31 into the liquid changes a viscosity of the liquid. This leads to a change in the pressure difference at the pump 13 and thus to a change in the powder flow. In order to ensure a constant powder flow of a second (or further) portion of the powder material 31 despite the change in viscosity, the control valve 34 can be controlled or regulated. By controlling or regulating the control valve 34, an optimal amount of powder material 31 can always be introduced into the liquid.
  • control valve 34 can also follow a programmed function that is stored on the computing unit 16.
  • control valve 34 prevents the liquid from penetrating into the powder feed line.
  • control valve 34 can close when the pressure is too high and / or open only when the differential pressure is applied to the pump 13.
  • the powder feed line 32 comprises a ball valve which is designed to prevent the liquid from penetrating the powder feed line in the event of an excessively high pressure (> -10 mbar) in the pipeline system of the liquid circuit.
  • the ball valve can close when the pressure is too high and / or open only when the differential pressure is applied to the pump 13.
  • the ball valve is controlled by the computing unit 16 in a manner analogous to the control valve 34.
  • a redundant pressure measurement can take place on the pump 13 and / or in the pipeline system 12 for opening and closing the ball valve.
  • the liquid container 11 can comprise a device which enables a mixture of powder and liquid to be removed.
EP19216645.2A 2019-12-16 2019-12-16 Dispositif d'incorporation des matières pulvérulentes, en particulier des matières pulvérulentes explosives de poussière, dans un liquide, en particulier facilement inflammable Withdrawn EP3838389A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP19216645.2A EP3838389A1 (fr) 2019-12-16 2019-12-16 Dispositif d'incorporation des matières pulvérulentes, en particulier des matières pulvérulentes explosives de poussière, dans un liquide, en particulier facilement inflammable
EP20821297.7A EP4076716A1 (fr) 2019-12-16 2020-12-15 Dispositif d'incorporation de matières pulvérulentes, notamment de matières pulvérulentes d'explosion de poussière, dans un liquide, notamment un liquide inflammable
BR112022012039A BR112022012039A2 (pt) 2019-12-16 2020-12-15 Dispositivo e método para a incorporação de materiais pulverulentos
PCT/EP2020/086243 WO2021122610A1 (fr) 2019-12-16 2020-12-15 Dispositif d'incorporation de matières pulvérulentes, notamment de matières pulvérulentes d'explosion de poussière, dans un liquide, notamment un liquide inflammable
CN202080086528.9A CN115151338A (zh) 2019-12-16 2020-12-15 用于将粉状材料，特别是能够粉尘爆炸的粉状材料置入特别是易燃液体的装置
US17/757,459 US20230038859A1 (en) 2019-12-16 2020-12-15 Device for incorporation of pulverulent materials, especially dust-explosive pulverulent materials, into a liquid, especially an inflammable liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19216645.2A EP3838389A1 (fr) 2019-12-16 2019-12-16 Dispositif d'incorporation des matières pulvérulentes, en particulier des matières pulvérulentes explosives de poussière, dans un liquide, en particulier facilement inflammable

Publications (1)

Publication Number Publication Date
EP3838389A1 true EP3838389A1 (fr) 2021-06-23

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP19216645.2A Withdrawn EP3838389A1 (fr) 2019-12-16 2019-12-16 Dispositif d'incorporation des matières pulvérulentes, en particulier des matières pulvérulentes explosives de poussière, dans un liquide, en particulier facilement inflammable
EP20821297.7A Pending EP4076716A1 (fr) 2019-12-16 2020-12-15 Dispositif d'incorporation de matières pulvérulentes, notamment de matières pulvérulentes d'explosion de poussière, dans un liquide, notamment un liquide inflammable

Family Applications After (1)

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EP20821297.7A Pending EP4076716A1 (fr) 2019-12-16 2020-12-15 Dispositif d'incorporation de matières pulvérulentes, notamment de matières pulvérulentes d'explosion de poussière, dans un liquide, notamment un liquide inflammable

Country Status (5)

Country Link
US (1) US20230038859A1 (fr)
EP (2) EP3838389A1 (fr)
CN (1) CN115151338A (fr)
BR (1) BR112022012039A2 (fr)
WO (1) WO2021122610A1 (fr)

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EP2961523A1 (fr) * 2013-03-01 2016-01-06 Tetra Laval Holdings & Finance SA Mélangeur de traitement de liquide et procédé
EP3069786A1 (fr) * 2015-03-20 2016-09-21 Silverson Machines Limited Appareil et procédé de mélange à cisaillement élevé
EP3275532A1 (fr) * 2016-07-29 2018-01-31 Daniatech ApS Système et procédé d'alimentation en poudre et de mélange de la poudre dans un liquide
US20190060850A1 (en) * 2017-03-22 2019-02-28 Isopure, Corp. Acid Mixing System

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FR2664506B1 (fr) * 1990-07-13 1993-05-07 Bp Chemicals Snc Procede et dispositif d'introduction d'une poudre dans un reacteur.
US5642939A (en) * 1996-04-24 1997-07-01 Comardo; Mathis P. Liquid mixing, conveying and circulating system for pulverulent material

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US3207365A (en) * 1964-06-11 1965-09-21 Pennsalt Chemicals Corp Chemical apparatus and method
EP1712271A2 (fr) * 2005-04-13 2006-10-18 Ekato Unimix Gmbh Dispositif pour homogénéiser et/ou disperser des matériaux fluides
US20110299357A1 (en) * 2008-06-20 2011-12-08 Jan Kristians Vasshus Mixing Apparatus and Method of Using Same
EP2961523A1 (fr) * 2013-03-01 2016-01-06 Tetra Laval Holdings & Finance SA Mélangeur de traitement de liquide et procédé
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BR112022012039A2 (pt) 2022-09-06
WO2021122610A1 (fr) 2021-06-24
CN115151338A (zh) 2022-10-04
EP4076716A1 (fr) 2022-10-26

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