EP3145687A2 - Installation séquentielle de mélange continu - Google Patents

Installation séquentielle de mélange continu

Info

Publication number
EP3145687A2
EP3145687A2 EP15736167.6A EP15736167A EP3145687A2 EP 3145687 A2 EP3145687 A2 EP 3145687A2 EP 15736167 A EP15736167 A EP 15736167A EP 3145687 A2 EP3145687 A2 EP 3145687A2
Authority
EP
European Patent Office
Prior art keywords
mixer
vertical
housing
horizontal
plant according
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.)
Granted
Application number
EP15736167.6A
Other languages
German (de)
English (en)
Other versions
EP3145687B1 (fr
Inventor
Karl ENZENHOFER
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.)
Geolyth Mineral Technologie GmbH
Original Assignee
Geolyth Mineral Technologie GmbH
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 Geolyth Mineral Technologie GmbH filed Critical Geolyth Mineral Technologie GmbH
Priority to SI201530414T priority Critical patent/SI3145687T1/sl
Priority to PL15736167T priority patent/PL3145687T3/pl
Publication of EP3145687A2 publication Critical patent/EP3145687A2/fr
Application granted granted Critical
Publication of EP3145687B1 publication Critical patent/EP3145687B1/fr
Priority to HRP20181562TT priority patent/HRP20181562T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B01F35/10—Maintenance of mixers
    • B01F35/11—Maintenance of mixers using fluids
    • 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
    • B28C5/1238—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1292—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
    • 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
    • B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
    • 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
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/053—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials
    • 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
    • B01F27/0721—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis parallel with respect to 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
    • B01F27/0727—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 two or more radial rods, e.g. the shaft being interrupted between the rods, or of crankshaft type
    • 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
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • 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
    • B01F27/1921—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements comprising helical elements and paddles
    • 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
    • B01F27/627—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis the receptacles being tiltable, e.g. for emptying
    • 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
    • B01F27/80—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
    • 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 
    • B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms  with fixed axis
    • 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
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • 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
    • B01F35/10—Maintenance of mixers
    • 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
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • 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
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • 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
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • B01F35/4122—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft at the side walls of the receptacle
    • 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
    • B01F35/50—Mixing receptacles
    • B01F35/511—Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
    • 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
    • B01F35/56—General build-up of the mixers
    • 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
    • B01F35/715—Feeding the components in several steps, e.g. successive steps
    • 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
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • 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
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • 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
    • B01F35/7544—Discharge mechanisms characterised by the means for discharging the components from the mixer using pumps
    • 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
    • B28C5/1238—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1269—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices for making cellular concrete
    • 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
    • B28C5/1238—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1276—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with consecutive separate containers with rotating stirring and feeding or discharging means
    • B28C5/1284—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 for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with consecutive separate containers with rotating stirring and feeding or discharging means having a feeding hopper and consecutive vertical or inclined mixing container fed at its upper part
    • 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
    • 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
    • B28C5/16—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 vertical or steeply inclined axis

Definitions

  • the invention relates to a continuous mixing plant, which serves pulverulent and / or granular solids with a liquid to a slurry (pulpy mass) to mix and foam this slurry.
  • the advantages of the continuous mixing plant according to the invention are especially valuable when the foamed slurry produced therewith is a self-hardening composition, in particular a rapidly curing composition, for example a mineral formulation such as foam concrete, or a foamed mineral thermal insulation material.
  • a problem with mixing powdered and / or granular solids with liquid to form a self-curing foamed slurry is that good mixing of the slurry and the foam must occur without destroying the foam structure.
  • Another problem is that after completion of the discharge from the mixer a residue of slurry remains as adhesion in the mixer and cures there, unless the mixer is cleaned promptly.
  • a continuous mixer with the help of which one can mix over a longer period in the flow - and not in individual separate batches with intermediate downtime has to mix, - Although the cleaning effort is reduced, but must also here after discharge or in an unscheduled Stop the mixer for cleaning.
  • Typical continuous mixers for producing self-curing slurry of powdered and / or granular solids and water comprise a conveyor and a mixer, wherein the conveyor continuously moves the solids through an opening into the chamber of the mixer, wherein at least one additional opening liquid in the Chamber of the mixer is introduced, wherein the mixer continuously ierlich mixes and wherein the continuously resulting slurry in the mixer flows out through a further opening from the mixer.
  • DE 3100443 AI shows a continuous mixer for concrete or foam concrete, in which the solids are transported via a screw conveyor from the bottom of a feed container into the chamber of a horizontally arranged mixer.
  • the auger and the rotor of the mixer lie on a common shaft and are driven together by a motor.
  • mixing water is added and the slurry stirred.
  • foam is added in the rear part of the mixer and mixed into the slurry. From the outlet of the mixer, the foamed slurry enters the reservoir of a pump, with which the foamed slurry is pumped to the place of use.
  • a disadvantage of this inherently robust and simple design is, on the one hand, that the foamed slurry gently generated in the mixer by lifting is transported through a pump arranged after the mixer, whereby there is a risk that the foam structure in the pump or by the pump gets destroyed.
  • the mixer can only be emptied when the screw conveyor has run empty. Rapid, unplanned shutdown, as may be required in the event of faults on any parts of the system, thus leading to significant problems.
  • EP 1065033 A2 shows a continuous mixer in which the pulverulent and / or granular solids are introduced from above into a vertical mixing chamber and not, as in the aforementioned publications, from one side into a horizontally arranged mixing chamber.
  • an eccentric screw pump connects, which serves to transport the slurry to the place of use.
  • DE 2437231 AI shows a vertical mixer, which has an eccentric screw pump at the lower end.
  • compressed air is added to the slurry.
  • the eccentric screw pump is followed by a swirl chamber, in which a rapidly rotating tool further mixes the slurry mixed with compressed air.
  • the disadvantage is that the stirrer is mounted vertically in the vortex chamber and rotates rapidly, thereby the mixing distance in the vortex chamber is limited to the diameter of the stirrer and by the short vigorous mixing, the structure of the air pores can be adversely affected.
  • DE 3807250 A1 shows a continuous mixer for mixing a slurry and a foam component.
  • the mixer will fed via the hose of a concrete pump with slurry, wherein in the mixer and the foam is injected.
  • the disadvantage is that a premixed slurry is used, which is transported to the reservoir of a concrete pump and from this via a hose to the mixer.
  • the device shown is therefore expedient for use on a construction site, in which a certain distance has to be overcome between the pump and the place of use. For the production of prefabricated components such as thermal insulation panels of rapidly curing foamed slurry, this device is unsuitable.
  • DE 4408088 AI shows a method for producing a porous mineral lightweight insulation board.
  • a slurry is stirred in a first mixer, which passes into an intermediate container and is transported away by this with a pump via a line.
  • the line of the slurry and the line of the foam component are combined via a y-shaped branched mixing tube and homogenized by a static mixer.
  • a static mixer has no rotating parts. The mixing takes place through static obstacles, which causes a turbulence of the components.
  • the disadvantage is that the mixing in the static mixer can not be adapted to a variable flow rate.
  • the cleaning of the static mixer is difficult, since at a standstill of the pump, a material discharge from the static mixer is not possible.
  • a rapidly hardening mass tends to caking on the complex shaped obstacles in the static mixer, with areas behind the obstacles are difficult to clean even by water, which is pumped under pressure through the static mixer.
  • the object underlying the invention is to provide a continuous mixing plant for producing a very rapidly curing highly foamed slurry.
  • Partial tasks of the invention can be seen in the fact that it does not cure the slurry in the continuous mixing plant comes, the amount and density of the produced foamed slurry should be adjustable in a wide range, a gentle foaming of the slurry is made possible, destruction of the foam structure is prevented, the production can be stopped at any time without major problems and the system at the end of continuous operation is easy to clean.
  • the invention proposes mixing in a first vertically arranged mixer solids and the mixing liquid to a flowable slurry, wherein at the lower end of the vertical mixing chamber an eccentric screw pump is mounted, which the premixed material from the first mixing chamber under pressure directly into the Promotes beginning region of a second mixing chamber, wherein the second mixing chamber is arranged horizontally and has a rotating horizontally disposed elongated mixing tool.
  • the foam component Via a foam gun, the foam component is also conveyed under pressure into the initial region of the horizontal mixing chamber, wherein the slurry and the foam are moved through the horizontal mixing chamber, wherein the mixing tool gently lifts the foam component to the slurry. It is important that the connection of the foam gun and the eccentric screw pump to the horizontal mixer are pressure-tight.
  • the amount of slurry and foam is preferably chosen so that the promotion by the horizontal mixing chamber is mainly due to the higher volume flow of the foam.
  • the amount of slurry which is pumped into the horizontal mixer is thereby preferably between 1 and 12 liters per minute, more preferably an amount of 2 to 9 liters / minute.
  • the amount of foam which is pumped into the horizontal mixer is preferably between 30 and 200 liters / minute, more preferably between 50 and 100 1 / min.
  • the ratio between the volume of the foam and the volume of the slurry is between 200: 1 and 30:12, more preferably between 50: 1 and 5: 1.
  • an outlet port through which the ready-mixed foamed slurry leaves the continuous mixing plant and is preferably poured directly into molds.
  • a hose can also be connected to the outlet opening, wherein the diameter of the hose should correspond to that of the horizontal mixing chamber.
  • the vertical arrangement of the first mixer prevents the inlet for the solids, which is located at the upper end of the vertical mixer, from coming into contact with the mixing liquid during operation.
  • the vertical arrangement of the first mixer and the vertically arranged eccentric screw pump ensures that they can be emptied almost completely when the material supply is stopped and the mixing tool of the vertical mixer and the eccentric screw pump continues to operate.
  • the horizontal arrangement of the second mixer ensures that the foam and thus the resulting pores are not compressed, since, in contrast to the vertical arrangement, the influence of gravity is negligible. This allows a very regular pore size. The influence of gravity is also negligible due to the very low weight of the foamed slurry, if the preferred high proportion of foam is added.
  • outlet opening of the horizontal mixer preferably opens into the open air or a hose with a large diameter and thereby that the horizontal mixer and optionally the hose have a significantly larger diameter than the feed openings of the slurry and the foam, takes place Lowering the foam in a horizontal mixer almost depressurized, whereby the foam and thus the resulting pores are not compressed or destroyed. This is particularly advantageous compared to static mixers, since in these the promotion of the slurry and the foam is carried out by the static mixer under pressure.
  • the rotating elongated mixing tool in the horizontal mixer ensures that the material in the mixer is moved even when the foam gun is stopped.
  • the continuous mixing plant can process self-hardening slurries very quickly, since the amount of slurry in the system is as low as possible, the slurry is constantly actively moved in every area of the system, the system can be emptied almost completely and is easy to clean and disassemble.
  • the supply of solids is carried out by a screw conveyor, which continuously conveys the solids from the lower end of a reservoir to the upper end of the vertical mixer.
  • the shaft of the mixing tool of the vertical mixer at the lower end on a coupling which is in operative connection with the rotor of the eccentric pump, so that the chamber of the vertical mixer with the motor mounted thereon and the mixing tool of the eccentric screw pump and the solid feed opening moves away, in particular pivoted away can be.
  • the vertical mixing chamber and / or the horizontal mixing chamber supply valves for cleaning liquid, via which cleaning liquid can be fed under high pressure.
  • the vertical mixing chamber preferably has high-pressure injection nozzles, via which the required process water can also be injected.
  • vertical mixers with an eccentric screw pump can be used. These can be used, for example, as mortar Mixing pumps (eg models of the series PFT G4 of Knauf PFT GmbH & Co. KG) are obtained.
  • mortar Mixing pumps eg models of the series PFT G4 of Knauf PFT GmbH & Co. KG
  • the first preferred improvement of the vertical mixer according to the invention consists in that an additional cover, or gate valve is present.
  • the vertical mixer can be closed in a region between the supply port of the solids and the supply port of the mixing liquid.
  • the mixer can be cleaned with cleaning fluid under high pressure or normal pressure. The cleaning liquid is injected through the supply opening of the mixing liquid, or through additional nozzles.
  • the second preferred improvement of the vertical mixer according to the invention is that it is designed in two parts, with mixing water being added only in the second, lower section of the mixing chamber.
  • the two sections are formed by the use of a disc which has a closable opening for the passage of solids.
  • a mixing tool which sweeps at least once per revolution, all surface areas of the inside of the lower portion of the mixing chamber, so that no material can adhere to it and harden.
  • the mixing tool located in this section has two plug-in couplings for connection to the rotor of the eccentric cam. on the one hand and with the shaft of the engine on the other.
  • the housing of the mixing chamber can be opened in the lower section and the mixing tool removed.
  • the improvement according to the invention of the eccentric screw pump is that it is mounted with its lower end in or on the housing of the horizontal mixer, so that the housing of the eccentric screw pump is secured at its lower end against horizontal displacement and use.
  • a further improvement of the eccentric screw pump according to the invention may consist in that it is provided at its lower end with a bearing plate for supporting the rotor, wherein this bearing plate is directly pressure-tightly connected to the inlet opening of the horizontal mixer.
  • the rotor of the eccentric screw pump is mounted directly in the mixer housing of the horizontal mixer.
  • a part of the rotor protrudes into the supply opening of the housing of the horizontal mixer, so that the lateral surface of this opening is swept by the rotor.
  • the compound of the eccentric screw pump and the mixer housing is preferably detachable, for example by means of clamping lever, electric linear drive, or a pneumatic or hydraulic cylinder, so that the horizontal mixer housing can be moved away if necessary from the eccentric screw pump.
  • the particularly preferred improvement of the horizontal mixer according to the invention consists in that the mixing tool of the horizontal mixer consists of an elongated shaft to which elastically deformable mixing elements are preferably made of high-strength steel. These mixing elements are exposed during operation to bending forces and vibrations, whereby a shape change tion of the flexible spring steel, which has the release of caking result. This is particularly advantageous if the solids have no fraction of coarse-grained particles which would otherwise contribute to the dissolution of caking.
  • the ends of the mixing elements are in contact with the inner wall of the mixing chamber so that during operation they constantly strip the material adhering to the inner wall.
  • the mixing elements are designed so that all surface areas of the inner wall are stripped in one revolution of the mixing tool.
  • the mixing elements are made of a 0.5 - 1.5 mm thick spring steel sheet and biased against the inner wall of the mixing chamber.
  • Fig. 1 Shows the continuous mixing plant according to the invention in a side partial sectional view.
  • Fig. 2 shows a particularly preferred continuous flow mixing plant according to the invention in a side partial sectional view.
  • Fig. 3 Shows the bearing plate of the eccentric screw pump in lateral sectional view and from above.
  • Fig. 4 Shows a vertical mixer according to the invention with closed shut-off elements in a side partial sectional view and in a sectional view from above.
  • Fig. 5 Shows a vertical mixer according to the invention in a lateral sectional view.
  • Fig. 6 Shows the exemplary construction of a particularly preferred shut-off in sectional view.
  • Fig. 7 shows a particularly preferred invention
  • Fig. 8 Shows a horizontal mixer according to the invention in
  • FIG. 9 shows a further horizontal mixer according to the invention in rear view and in lateral sectional view.
  • 10 shows a further horizontal mixer according to the invention in rear view and in lateral sectional view.
  • FIG. 11 shows the particularly preferred mounting of the eccentric screw pump in a lateral sectional view.
  • Fig. 12 Shows the particularly preferred embodiment of the continuous mixing plant according to the invention in a lateral sectional view.
  • Fig. 13 shows the particularly preferred embodiment of the continuous mixing plant according to the invention in disassembled state.
  • Fig.l are fed from a reservoir 1, the solid powdery to granular solids with a conveyor 2 in the vertical mixer 3.
  • a conveyor 2 At the lower end of the vertical mixer 3 there is an eccentric screw pump 4.
  • the vertical mixer 3 has at least one connection 3.3 for introducing the mixing liquid, which may consist of water or water with various liquid additives.
  • the connection 3.3 is located below the feed opening for the solids, which prevents mixing water from entering or entering the conveying device 2.
  • the solids are mixed with the Anmachfactkeit to a flowable slurry, which passes directly from the lower end of the vertical mixer 3 in the eccentric screw 4.
  • the shaft of the vertical mixing tool 3.1 has a connection to the rotor 4.1 of the eccentric screw pump 4, so that the shaft and the rotor 4.1 are driven by a common drive, the motor 3.2.
  • the eccentric screw pump 4 pumps the slurry directly into the horizontal mixer 5.
  • the slurry passes from above through the slurry inlet opening 5.3.1 in the housing 5.3 of the horizontal mixer 3 in the mixing chamber.
  • foam inlet opening 5.3.2 foam foam is introduced into the horizontal mixer 5 with a foam gun.
  • the slurry inlet opening 5.3.1 and the Foam inlet opening 5.3.2 are located in the front area of the mixer housing 5.3.
  • the mixer housing 5.3 is elongate and preferably has an annular cross-section, so it is preferably formed as a horizontal hollow cylinder, which is closed at one or both ends with a disc.
  • the housing 5.3 has the outlet opening 5.3.3, through which the slurry mixed with foam leaves the continuous mixing plant.
  • the horizontal mixing tool 5.1 This consists of an elongated shaft, which is provided with a plurality of mixing elements 5.1.1. The shaft can be mounted on both sides of the mixer 5 in the housing 5.3.
  • the horizontal mixing tool 5.1 This consists of an elongated shaft, which is provided with a plurality of mixing elements 5.1.1. The shaft can be mounted on both sides of the mixer 5 in the housing 5.3.
  • the foamed slurry preferably passes directly from the outlet opening 5.3.3 into a mold 6 in which it can harden to form an element, in particular to a plate or plate geometry. Instead of the mold 6, the slurry could be filled into preformed components such as bricks to improve their thermal insulation properties.
  • FIG. 2 shows a continuous mixing plant according to the invention, wherein details, in particular preferred details of the embodiment, are shown.
  • the conveying device 2 is a screw conveyor.
  • the auger 2.1 is powered by a motor
  • the screw conveyor 2.1 projects into the mixing chamber of the vertical mixer 3.
  • the shaft of the vertical mixer 3 is connected via a plug-in coupling with the rotor 4.1.
  • the vertical mixer 3 can be released from the eccentric screw pump 4, in particular be pivoted away from it. Will the vertical Swiveled mixer 3 in the operating position, the parts of the plug-in clutch re-engage.
  • the eccentric screw pump 4 may be firmly connected at its lower end with a bearing plate 4.2, which may be formed for example of high-strength steel.
  • the bearing plate 4.2 serves as a bearing for the rotor 4.1, since this is connected only via a plug-in coupling with the shaft of the vertical mixing tool 3.1.
  • the rotor 4.1 is decentralized with an eccentric portion of its lower end on the bearing plate
  • the vertically acting forces are transmitted from the eccentric part of the rotor 4.1 on the bearing plate 4.2.
  • the rotor 4.1 may preferably also be mounted directly in or on the housing 5.3.
  • the housing 5.3 can preferably be moved away from the eccentric screw pump 4 and can be fixed to it by means of two clamping levers or a pneumatic cylinder 9, for example.
  • an exemplary bearing plate 4.2 is shown.
  • the body of the support plate 4.2 is formed as a plate with a central opening, preferably annular.
  • An additional radial guidance of the rotor 4.1 can take place if it has at its lower end an eccentric to the axis of rotation pin which rotates on the lateral surface of the opening of the bearing plate 4.2.
  • the central opening could thus also be formed as a slot so that it is longitudinally oval, the diameter of the pin corresponding to the width of the slot.
  • the slurry inlet opening 3.5.1 could also be configured with two opening cross-sections of different size in order to create a bearing surface for the rotor 4.1 in the same way as the bearing plate 4.2.
  • the vertical mixer preferably has a shut-off element 7.
  • This shut-off element 7 can be moved into the mixing chamber of the vertical mixer 3 such that a liquid-tight separation of the conveyor device 2 and the parts of the vertical mixer 3 coming into contact with the mixing liquid can be produced.
  • the shut-off element 7 can close the vertical mixer 3 as a gate valve 7.2 in a cross-sectional area which lies between the material supply of the solids and the port 3.3.
  • the gate valve 7.2 is preferably made of two slides, which can be moved horizontally from two sides into the vertical mixer 3.
  • FIG. 4 shows the vertical mixer 3 with closed shut-off elements 7. Two variants of the shut-off element 7 are shown, wherein only one of the two is used in the implementation of the device.
  • the shut-off element 7 can be designed as a slidably held lid 7.1. This cover 7.1 can be inserted into the connecting line of mixer 3 and conveyor 2. When shutting off, the conveyor 2 is first moved slightly away from the mixer 3, whereupon the lid 7.1 is moved into the resulting gap and seals it off.
  • the shut-off element 7 can be designed as a gate valve 7.2.
  • This gate valve 7.2 is preferably made of two slides, which can be moved horizontally from two sides into the mixer 3. Both slides have a recess with which they enclose the shaft of the vertical mixing tool 3.1 in the locked state. On the side surfaces at which the slide come into contact with each other and with the shaft, they may be provided with rubber or a similar material.
  • Fig. 5 shows the particularly preferred embodiment of the vertical mixer 3 with a two-part mixing chamber.
  • the separation into two sections takes place through the partition plate 3.4.
  • the actual mixing element 3.1.1 is arranged in the lower section of the mixing chamber.
  • the partition plate 3.4 has concentric with the shaft of the vertical mixing tool 3.1 an opening.
  • the gap between the shaft and the partition plate forms the opening for passage of the solids from the upper portion of the vertical mixer 3 into the lower portion.
  • the shut-off 7 is designed as an automatically adjustable sealing body 7.3, which can seal the two sections of the vertical mixing chamber.
  • the sealing body 7.3 has a hollow cylindrical shape, wherein this is tapered frustoconical at the lower and upper end.
  • the opening in the partition plate 3.4 is funnel-shaped, so that the lateral surface of the truncated cone of the sealing body 7.3 rests in the closed state on the lateral surface of the opening.
  • the hollow cylinder of the sealing body 7.3 surrounds the drive shaft of the vertical mixing tool 3.1, wherein the sealing body 7.3 can be moved along the drive shaft.
  • the drive shaft of the vertical mixing tool 3.1 is rotatably mounted with respect to the part of the sealing body 7.3, which rests against the partition plate 3.4 in the closed state.
  • the mixing element 3.1.1 and the rotor 4.1 of the eccentric screw pump 4 can still be driven even after tight separation of the two sections of the mixing chamber.
  • the upper section of the mixing chamber should not have any areas in which solids can settle, so no horizontal surface areas.
  • the upper portion preferably has a funnel-shaped inner shape. In the example, this is achieved in that above the partition plate 3.4 a funnel insert, for example made of plastic, is inserted into the mixing chamber.
  • the movement of the solids through the opening of the separation plate 3.4 may be assisted by a vibrator or vibrator which is externally attached to the housing of the upper portion of the mixing chamber.
  • FIG. 6 the cross section of an exemplary sealing body 7.3 is shown. This is mounted translationally displaceable in an outer sleeve.
  • the outer sleeve is connected to the housing of the mixer, for example via two webs as shown.
  • the outer sleeve and the sealing body 7.3 have an opening for the passage of the drive shaft of the vertical mixing tool 3.1, wherein seals (not shown) are provided at these locations. can be.
  • the sealing body 7.3 can be hydraulically, pneumatically or be adjusted by an electric drive.
  • a further advantageous variant of the vertical mixer 3 is shown, in which case the conveyor 2 supplies material into a chute.
  • This chute opens into an opening in the housing of the mixing chamber, wherein the opening is spaced from the passage opening of the drive shaft of the vertical mixing tool 3.1.
  • the chute can be closed by a gate valve 7.2.
  • the mouth of the chute is preferably provided diagonally opposite the port 3.3 in the top of the mixer housing.
  • At least one air pressure nozzle in the transition region from the solids to the slurry zone of the vertical mixer 3, ie in the region of the mouth of the chute or the opening in the partition plate 3.4 may be present, which leads to better introduction of the powdery solids in particular of the cement powder.
  • shut-off element 7, 7.1, 7.2, 7.3 Before the beginning of the cleaning of the continuous mixing plant can be ensured that even with high-pressure cleaning of the vertical mixer 3 no cleaning liquid gets to the conveyor 2 and forms a self-hardening mass with the solids located there. This has the advantage that the cleaning can be done at any time, without the conveyor 2 would have to be emptied before.
  • the vertical mixer 3 and / or the horizontal mixer 5 preferably has at least one nozzle opening 8, via which cleaning liquid can preferably be sprayed under high pressure.
  • This enables rapid and automated cleaning of the continuous mixing plant.
  • the injection of cleaning fluid can also exclusively or additionally take place via the connection 3.3, wherein the cleaning liquid is subsequently pumped by the eccentric screw pump 4 in the horizontal mixer 5.
  • the foam inlet opening 5.3.2, the connection 3.3 and the cleaning nozzles 8 have check valves which prevent slurry or cleaning liquid from penetrating into one of the lines for foam, mixing water and cleaning liquid.
  • the mixing elements 5.1.1 are made of high-strength steel, which leads to a self-cleaning effect of this.
  • FIGS. 8-10 show horizontal mixers 5 according to the invention.
  • the motor 5.2 is preferably not at the rear end of the horizontal mixer 5 but at its front end, ie the end at which the supply of slurry and foam takes place.
  • the rear end of the horizontal mixer 5 can be open, designed as an outlet opening 5.3.3.
  • the bearing of the drive shaft in the passage opening at the front end of the housing 5.3 must be pressure-tight.
  • the mixing elements 5.1.1 consist of an elastic material, in particular high-strength steel or wear-resistant plastic.
  • the individual mixing elements 5.1.1 are preferably formed by a web which runs parallel and spaced from the drive axis of the horizontal mixing tool 5.1. The web is connected via two legs, which preferably attach at both ends, connected to the drive shaft. Of course, more than two webs may be provided, in particular to increase the stability when the web is made of thin sheet metal and / or very long.
  • the mixing elements 5.1.1 are radially designed to be longer than the distance between the shaft and the inside of the housing, so that the mixing elements 5.1.1 rest against the inside of the housing and are biased against them.
  • mixing elements 5.1.1 for example in the region between two legs of a mixing element 5.1.1 and radially offset to this, also differently shaped mixing elements 5.1.1 may be attached to the shaft. These could be designed, for example, as high-strength steel platelets, which do not extend to the inner surface of the housing 5. 3.
  • the mixing elements 5.1.1 especially in the two end portions of the horizontal mixer 5, may be formed differently.
  • the thickness of the spring steel sheet should be slightly larger, for example, 1.5 mm.
  • a larger number of mixing elements 5.1.1 may be provided on the same circumferential area of the shaft. In the example, these are two mixing elements 5.1.1, which are arranged at an angle of 180 ° to each other.
  • the number of mixing elements 5.1.1 on a peripheral region could also be made larger, in particular three at an angle of 120 ° to each other, four at an angle of 90 ° to each other, five at an angle of 72 ° to each other and so on. Due to the design with a plurality of radially offset mixing elements 5.1.1, the horizontal mixing tool 5.1 is supported and guided in the housing 5. 3, so that on a special te storage of the shaft can be dispensed with at the rear end of the mixing chamber. As a result, the outlet opening 5.3.3 can extend over the entire rear side surface of the housing 5.3.
  • the rear end of the tubular horizontal mixing chamber can be largely open even when the shaft is mounted, if an example circular-sector bearing plate 5.4 is provided, which is connected at one end to the housing 5.3 and in the region of the other end having a recess for supporting the shaft.
  • the legs of the mixing element 5.1.1 can be fastened radially offset relative to one another on the shaft. Depending on the direction of the offset with respect to the direction of rotation thereby the discharge of the foamed slurry is supported, or counteracted.
  • the outlet opening 5.3.3 may have a cover 7.1 or a gate valve 7.1.
  • the horizontal mixer 5 can be sealed.
  • the horizontal mixer 5 can be closed during cleaning and filled with cleaning liquid, which is circulated by the horizontal mixing tool 5.1.
  • the outlet opening 5.3.3 can also be closed in the periods in which a filled mold 6 is exchanged for an unfilled mold 6.
  • the particularly preferred embodiment is shown in which the eccentric screw pump 4 promotes directly without bearing plate 4.2 in the horizontal mixing chamber.
  • the rotor 4.1 can preferably protrude into the slurry inlet opening 5.3.1, the lower end of the rotor 4.1 preferably sweeping off the lateral surface of the slurry inlet opening 5.3.1.
  • the rotor 4.1 of the eccentric screw pump 4 is not supported at its lower end. This is possible if on the rotor 4.1, during operation of the eccentric screw pump 4 by the rotational movement in approximately helical housing 4.3, after directed upward force acts.
  • an insert 4.4 is used in the housing 5.3 of the horizontal mixer 5, which serves for horizontal and vertical mounting of the eccentric screw pump 4 and forms the Slurryeinlassö réelle 5.3.1.
  • a holding pin 4.3.1 protrudes therefrom which engages in a U-shaped retaining plate which is attached to the housing 5.3.
  • the insert 4.4 is interchangeable and the device thereby adaptable to the dimension of the respective eccentric screw pump 4 used.
  • a pneumatic cylinder 9 may preferably attach to the horizontal mixer 5.
  • a hydraulic cylinder or an electro-mechanical linear drive could also be used.
  • the horizontal mixer 5 can be selectively pressed against the eccentric screw pump 4, or be moved away from it.
  • the insert 4.4 may have at the upper edge of its opening a phase which serves to center the eccentric screw pump 4 during insertion.
  • Fig. 12 a particularly preferred mixing plant according to the invention is shown, which can be considered as the best mode of the invention.
  • the vertical mixer 3 is designed in two parts, wherein in the upper region, the supply of solids via the screw conveyor 2.1 takes place and in the lower part of the Anmachnetkeit is added via the port 3.3.
  • the motor 3.2 can be pivoted away together with the lid 3.2.2 of the mixer housing, for example with a hinge joint and the Mixing tool 3.1 can be removed vertically from the mixer housing for cleaning.
  • the upper area of the vertical mixer 3 has a funnel-shaped area at its lower end.
  • the stirring element 3.1 has a wiping element 11 which scrapes off the conical section of the upper region so that solids and solids already in contact with liquid can not accumulate.
  • the stripping element 11 can be fastened to the vertical mixing tool 3.1 via a helical element, as shown.
  • a tube insert 12 made of plastic is used, which can be removed from the housing of the mixer 3.
  • This tube insert 12 has the advantages that material attaches less easily to plastic than to steel and that after removal of the tube insert this is quickly cleaned by tapping and the associated elastic deformation of adhering material.
  • the mixing tool 3.1.1 is designed as a whirl.
  • the eccentric screw pump 4 whose rotor 4.1 is preferably releasably connected to the lower end of the whisk.
  • the housing of the eccentric screw pump 4 is mounted in the insert 4.4.
  • the inner circumferential surface of the horizontal mixer 5 is formed by a plastic tube 13, which is advantageous for the reasons mentioned for the tube insert 12.
  • the plastic tube 13 is accommodated in a preferably three-part housing 15.
  • the housing 15 has a front portion 15.1 having an opening for the insert 4.4, a bearing for the horizontal mixing tool and an opening for the foam supply.
  • the housing 15 has a rear portion 15.2, which has a bearing as shown in Fig. 10 for the horizontal mixing tool.
  • the housing 15 has a central section 15.3, which connects the two sections 15.1 and 15.2 preferably releasably.
  • Section 15.3 is preferred by a rod, for example three over the circumference of the plastic tube
  • the section 15.3 may preferably have a trough-shaped support for the plastic tube 13 in order to prevent even a slight sagging of it.
  • At the rear section 15.2 preferably includes a conically widening rubber connection 16, which opens into a material container, not shown, a bottling plant, or to which a hose line, not shown, is connected.
  • the horizontal mixing tool 5.1 is formed by a square element 14, are attached to the elastic mixing elements 14.1 and 14.2.
  • the square element 14 has at both ends a shaft extension for storage in the sections 15.1 and 15.3 of the housing 15.
  • the mixing elements 14.1, 14.2 are preferably formed of elastic sheet metal, in particular spring steel, and each have two spaced apart on the square element attached leg, which are connected at its outer end via a stag.
  • the mixing elements 14.1 and 14.2 differ in that the webs of the mixing elements 14.1 are aligned parallel to the square element 14 and the webs of the mixing elements 14.2 obliquely thereto. This is achieved in that the legs of a mixing element 14.1 are fastened to the same side surface of the square element 14 and the legs of a mixing element 14.2 are fastened to opposite side surfaces of the square element 14.
  • the inclination of the mixing elements 14.2 is selected so that upon rotation of the mixing tool a conveying effect in the direction of the rubber connection 16 results.
  • the rigidity of the mixing elements 14.1 or 14.2 can be adjusted by making them multi-layered in the region of the legs, the legs of the mixing elements 14.1 are preferably formed of two layers of sheet metal, the mixing elements 14.2 of einlagigem sheet. Two mixing elements 14.1 successive in the longitudinal direction of the mixer are preferably on opposite side surfaces of the square element
  • Fig. 13 the system described in Fig. 12 is shown in disassembly.
  • the motor (3.2) with the lid 3.2.2 is first pivoted away and the vertical mixing tool 3.1 is removed. Thereafter, at least a portion of the housing of the lower portion of the vertical mixer 3 and the tube insert 11 is removed, wherein the housing part can also be pivoted away with a hinge joint.
  • the horizontal mixer is first pivoted away from the bottom of the eccentric screw pump 4, so that the insert 4.4 can be removed.
  • the section 15.2 or only the bearing plate 5.4 of section 15.2 is removed together with the rubber connector 16 or swung away. Thereafter, the horizontal mixing tool 5.1 and the plastic tube 13 can be removed from the device.
  • the mixing tools 3.1, 5.1 and the pipes 11, 13 can be cleaned particularly quickly by tapping off buildup.
  • the motor 5.2 can also be mounted remotely or pivoted away in order to be able to knock out the horizontal mixing tool 5.1 at its protruding from the mixer housing shaft journal from the mixer housing, this should be stuck.
  • the formulation to be processed is preferably Geolyth the Geolyth Mineral Technology GmbH or comparable mineral formulations, as described, inter alia, in WO 2011044604 AI or WO 2011106816 AI.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)

Abstract

L'invention concerne une installation de mélange continu et un procédé pour la préparation d'une suspension moussée, des solides et un liquide de gâchage étant mélangés en une suspension fluide dans un mélangeur vertical (3) et une pompe à vis excentrique (4) disposée verticalement se situant à l'extrémité inférieure du mélangeur vertical (3). La pompe à vis excentrique (4) débouche, côté sortie, de manière étanche à la pression, directement dans la première extrémité avant du carter (5.3) d'un mélangeur horizontal (5), qui présente une ouverture d'entrée de mousse (5.3.2) en l'extrémité avant.
EP15736167.6A 2014-05-20 2015-05-12 Installation de mélange continue pour la preparation d'une composition de coulis alvéolaire et procédé d'opération de ladite installation de mélange continue Active EP3145687B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201530414T SI3145687T1 (sl) 2014-05-20 2015-05-12 Pretočna mešalna naprava za izdelavo penjene brozge in postopek za delovanje take pretočne mešalne naprave
PL15736167T PL3145687T3 (pl) 2014-05-20 2015-05-12 Urządzenie do mieszania w trybie ciągłym do wytwarzania spienionej zawiesiny i sposób eksploatacji takiego urządzenia do mieszania w trybie ciągłym
HRP20181562TT HRP20181562T1 (hr) 2014-05-20 2018-10-02 Uređaj za kontinuirano miješanje za proizvodnju pjenaste isplake i postupak za upravljanje takvim uređajem za kontinuirano miješanje

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50360/2014A AT515881B1 (de) 2014-05-20 2014-05-20 Sequentielle Durchlaufmischanlage
PCT/AT2015/050118 WO2015176092A2 (fr) 2014-05-20 2015-05-12 Installation séquentielle de mélange continu

Publications (2)

Publication Number Publication Date
EP3145687A2 true EP3145687A2 (fr) 2017-03-29
EP3145687B1 EP3145687B1 (fr) 2018-07-04

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EP15736167.6A Active EP3145687B1 (fr) 2014-05-20 2015-05-12 Installation de mélange continue pour la preparation d'une composition de coulis alvéolaire et procédé d'opération de ladite installation de mélange continue

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Country Link
EP (1) EP3145687B1 (fr)
AT (1) AT515881B1 (fr)
DK (1) DK3145687T3 (fr)
ES (1) ES2689310T3 (fr)
HR (1) HRP20181562T1 (fr)
HU (1) HUE039845T2 (fr)
LT (1) LT3145687T (fr)
PL (1) PL3145687T3 (fr)
SI (1) SI3145687T1 (fr)
WO (1) WO2015176092A2 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110917924A (zh) * 2019-12-16 2020-03-27 肖文婷 一种用于化学发泡的混合装置

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US10532332B2 (en) * 2016-05-13 2020-01-14 United States Gypsum Company Continuous ready mix joint treatment and texture product production
CN106040080A (zh) * 2016-07-21 2016-10-26 柳州合科技有限公司 一种混合室防腐型农药混合装置
CN106166454A (zh) * 2016-07-21 2016-11-30 柳州合科技有限公司 一种多功能农药混合装置
CN106669572B (zh) * 2016-12-21 2018-09-21 重庆德蒙特科技发展有限公司 一种反应釜
CN106881033A (zh) * 2017-05-03 2017-06-23 刘运华 一种电子配件点胶用胶水稀释设备
DE102017005798B3 (de) 2017-06-21 2018-09-13 Tracto-Technik Gmbh & Co. Kg Mischanlage und Verfahren zum Herstellen einer Bohrflüssigkeit für eine Erdbohrung sowie Verwendung beim Herstellen einer Bohrflüssigkeit für eine Erdbohrung
CN107243991A (zh) * 2017-08-14 2017-10-13 朱鸿杰 一种桥梁施工设备
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CN108221677A (zh) * 2017-08-16 2018-06-29 潘绍合 一种实用的桥梁装置
CN108890885A (zh) * 2018-05-30 2018-11-27 广东知识城运营服务有限公司 一种道路桥梁建设施工用混凝土混合设备
CN109012325A (zh) * 2018-08-27 2018-12-18 郑州莉迪亚医药科技有限公司 一种便于清洗的智能制药混合装置
CN109129894B (zh) * 2018-09-05 2020-10-27 佛山市南海第二建筑工程有限公司 一种建筑工程分级搅拌装置
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CN109849180A (zh) * 2019-01-11 2019-06-07 武汉理工大学 一种水泥搅拌机
CN111359513A (zh) * 2019-12-29 2020-07-03 邢台职业技术学院 一种机械工程用高效混料机
CN111330488A (zh) * 2020-03-03 2020-06-26 湖南文理学院 一种基于医药化工实验用提取物原液的分析混合装置
CN111546490A (zh) * 2020-05-12 2020-08-18 靳森元 混凝土搅拌设备
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CN111660437A (zh) * 2020-06-27 2020-09-15 李彦红 一种混凝土搅拌机
AT523413B1 (de) * 2020-09-08 2021-08-15 Geolyth Mineral Tech Gmbh Anlage zur Erzeugung eines Mineralschaumes
CN114314586A (zh) * 2020-09-27 2022-04-12 靖州县华荣活性炭有限责任公司 一种活性炭生产用自动循环快速漂洗装置
CN112354404A (zh) * 2020-10-23 2021-02-12 上海电机学院 一种复合材料的混合出料装置
CN112454661A (zh) * 2020-11-03 2021-03-09 杨星文 一种可快速凝固的特种混凝土生产装置及工艺
CN113318663A (zh) * 2021-07-13 2021-08-31 张源航 一种二氧化碳驱油用泡沫驱油制备装置
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AT515881B1 (de) 2020-01-15
EP3145687B1 (fr) 2018-07-04
HRP20181562T1 (hr) 2018-11-30
LT3145687T (lt) 2018-10-10
DK3145687T3 (da) 2018-10-29
SI3145687T1 (sl) 2018-11-30
WO2015176092A3 (fr) 2016-01-07
AT515881A1 (de) 2015-12-15
PL3145687T3 (pl) 2019-01-31
ES2689310T3 (es) 2018-11-13
WO2015176092A2 (fr) 2015-11-26

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