DE2029492C3 - Device for drawing off melts, in particular organic melts and plastics - Google Patents

Device for drawing off melts, in particular organic melts and plastics

Info

Publication number
DE2029492C3
DE2029492C3 DE2029492A DE2029492A DE2029492C3 DE 2029492 C3 DE2029492 C3 DE 2029492C3 DE 2029492 A DE2029492 A DE 2029492A DE 2029492 A DE2029492 A DE 2029492A DE 2029492 C3 DE2029492 C3 DE 2029492C3
Authority
DE
Germany
Prior art keywords
coolant
melt
melts
sieve
nozzles
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.)
Expired
Application number
DE2029492A
Other languages
German (de)
Other versions
DE2029492B2 (en
DE2029492A1 (en
Inventor
Hans 8750 Aschaffenburg Hench Sen.
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2029492A priority Critical patent/DE2029492C3/en
Priority to PL14252070A priority patent/PL80962B1/pl
Priority to CS5434A priority patent/CS178070B2/cs
Priority to FR7028736A priority patent/FR2056570A5/fr
Priority to AT708470A priority patent/AT320266B/en
Priority to CH1175370A priority patent/CH520522A/en
Priority to BE754427D priority patent/BE754427A/en
Priority to SE10736/70A priority patent/SE352015B/xx
Priority to JP45068994A priority patent/JPS5225422B1/ja
Priority to NL7011659.A priority patent/NL166878C/en
Priority to GB3792970A priority patent/GB1306979A/en
Publication of DE2029492A1 publication Critical patent/DE2029492A1/en
Publication of DE2029492B2 publication Critical patent/DE2029492B2/en
Application granted granted Critical
Publication of DE2029492C3 publication Critical patent/DE2029492C3/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/38Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • B29B9/06Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05Filamentary, e.g. strands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/345Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87Cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91Heating, e.g. for cross linking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911Cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04Particle-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

3535

Die Erfindung betrifft eine Vorrichtung zum Abziehen von Schmelzen, insbesondere organischen Schmelzen und Kunststoffen, mit Hilfe von flüssigen Stoffen, die einerseits als Kühlmittel und andererseits als Saugmittel für den Abfluß der Schmelze dienen und deren Geschwindigkeit und/oder Menge regelbar ist, wobei die Schmelze zunächst in einen im wesentlichen parallel zur Abflußrichtung der Schmelze gerichteten Kühl- und Saugmittelstrom führbar und gemeinsam mit dem Kühl- und Saugmittel abführbar ist und wobei ein Gießer mit einem Hauptventil versehen ist und einen allseitig mit Blechen umgebenen stumpfen Verteilerkegel aufweist, der radial in der Kegelneigung eine große Anzahl einzelner Verteilerrohre aufweist, die am Ende etwa parallel zur Achse des Verteilerkegels hin gebogen in mittels einzeln oder gemeinsam zu betätigender Ventile absperrbare Ausiauföffnungen eines Ringes münden.The invention relates to a device for drawing off melts, in particular organic ones Melts and plastics, with the help of liquid substances, on the one hand as a coolant and on the other hand serve as suction means for the outflow of the melt and its speed and / or quantity can be regulated is, wherein the melt is initially directed in a direction substantially parallel to the outflow direction of the melt The flow of coolant and suction medium can be guided and can be discharged together with the coolant and suction medium and wherein a caster is provided with a main valve and one surrounded on all sides with metal sheets having obtuse distribution cone, the radial in the cone inclination a large number of individual distribution pipes has, bent at the end approximately parallel to the axis of the distributor cone in by means of individually or valves to be operated together open to shut-off openings of a ring.

Der Erfindung liegt die Aufgabe zugrunde, das den Abzugsdüsen von oben im Überlauf z.ugeführte Kühlwasser, auch Oberwasser genannt, gleichmäßig und ohne Wirbel den Abzugsdüsen zuzuführen. Dies geschieht erfindungsgemäß dadurch, daß für die Zuführung des Kühlmittels zu jedem Schmelzestrang eine Mehrzahl von Abzugsdüsen angeordnet ist und dcß alle Abzugsdüsen aus einem diese umgebenden Sieb, durch das das Kühlmittel hochdrückbar ist, nach oben herausragen.The invention is based on the task of guiding the exhaust nozzle from above in the overflow Cooling water, also called upstream water, is supplied to the exhaust nozzles evenly and without eddies. this happens according to the invention that for the supply of the coolant to each melt strand a plurality of draw-off nozzles is arranged and dcß all draw-off nozzles from a surrounding them The sieve, through which the coolant can be pushed up, protrudes upwards.

Das hochsteigende Kühlwasser (Oberwasser) muß aiso beim Hochsteigen um die Abzugsdüsen im gesamten Bereich um jede Abzugsdüse herum die Siebfläche durchsetzen, wodurch dem Kühlwasser ein uleichmäßiger Widerstand entgegengesetzt wird und "eine möglicherweise vorher vorhandene Turbulenz weitgehend beseitigt wird. Da der gesamte Raum zwischen und um die Abzugsdüsen für die Zuführung des Kühlwassers ausgenutzt wird, steht diesem also ein relativ großer Querschnitt zur Verfügung, was ebenfalls einer Wirbelbildung entgegenwirkt. Darüber hinaus wird durch die Siebfiäche eine Filter1 mg des Kühlwassers erreicht. Eventuelle Verunreinigungen werden hierdurch ausgeschieden.The rising cooling water (head water) must penetrate the sieve surface in the entire area around each exhaust nozzle when rising up around the exhaust nozzle, whereby the cooling water is opposed to an inadequate resistance and "any previously existing turbulence is largely eliminated. Since the entire space between and around If the outlet nozzle is used for the supply of the cooling water, a relatively large cross-section is available, which also counteracts the formation of vortices. In addition, a 1 mg filter of the cooling water is achieved through the screen surface.

Eine vorteilhafte Weiterbildung besteht darin, daß das Sieb nach oben über die Abzugsdüsen abnehmbar ist. Die Reinigung des Siebes stellt dcmit kein Problem dar.An advantageous further development consists in the fact that the screen can be removed upwards via the extraction nozzles is. Cleaning the sieve is no problem.

In den Figuren ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigtIn the figures is an embodiment of the invention shown. It shows

F i g. 1 einen Querschnitt durch ein Abzuggerät nach Γ i g. 2,F i g. 1 shows a cross section through a trigger device according to Γ i g. 2,

Fig.2 einen Ausschnitt einer Draufsicht auf ein Abzuggerät.2 shows a detail of a plan view of a Trigger device.

Nach dem in F i g. 1 dargestellten Querschnitt ist das Gehäuse des Abzuggerätes mit 1 bezeichnet, in dem die Abzugsdüsen 2 gegen einen nicht dargesteli ten Schmelzflußverteiler ragend befestigt sind.After the in F i g. 1, the housing of the trigger device is denoted by 1, in FIG which the exhaust nozzles 2 are attached protruding against a not dargesteli th melt flow distributor.

Auf das Gehäuse 1 ist das das Oberwasser begrenzende Gehäuseteil 3 in Form eines Ringes mit Flansch 3' festgeschraubt. Dieses Gehäuseteil 3 hat innen einen Ringbund 4, auf dem das mit Ausstanzungen 5 versehene Sieb 6, übergeschoben über die Abzugsdüsen, zur Auflage kommt. Zum Ausheben des Siebes 6 über die Abzugsdüsen 2 sind an demselben Griffösen 7 vorgesehen. Das Sieb 6 könnte auch mittels Drahthaken abgehoben werden.On the housing 1, the housing part 3 delimiting the upper water is in the form of a ring Flange 3 'screwed tight. This housing part 3 has an annular collar 4 on the inside, on which the punched-out parts 5 provided sieve 6, pushed over the extraction nozzles, comes to rest. For digging of the sieve 6 via the extraction nozzles 2 are provided on the same handle eyelets 7. The sieve 6 could also can be lifted off by means of a wire hook.

Aus der Draufsicht gemäß F i g. 2 ersieht man deutlich, daß das Sieb als durchgehende, alle Abzugsdüsen umgebende Siebfläche ausgebildet ist, so daß also das Oberwasser (Kühlwasser) mit relativ großem Querschnitt neben den Abzugsdüsen 2 durch das Sieb6 hochsteigen kann. Die in Fig. 1 eingezeichneten Pfeile zeigen dabei die Zuführungsrichtung des Oberwassers an.From the top view according to FIG. 2 you can see clearly that the sieve as a continuous, all exhaust nozzles surrounding screen surface is formed, so that the upper water (cooling water) with a relatively large Cross-section next to the extraction nozzles 2 through the sieve 6 can rise. The ones shown in FIG Arrows indicate the direction in which the headwater is fed.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: 1. Vorrichtung zum Abziehen von Schmelzen, insbesondere organischen Schmelzen und Kunststoffen, mit Hilfe von flüssigen Stoffen, die einerseits als Kühlmittel und andererseits als Saugmittel für den Abfluß der Schmelze dienen und deren Geschwindigkeit und/oder Menge regelbar ist, wobei die Schmelze zunächst in einen im we- «° sentlichen parallel zur Abflußrichtung der Schmelze gerichteten Kühl- und Saugmittelstrom führbar und gemeinsam mit dem Kühl- und Saugmittel abführbar ist und wobei ein Gießer mit einem Hauptventil versehen ist und einen allseitig mit «5 Blechen umgebenen stumpfen Verteilerkegel aufweist, der radial in der Kegelneigung eine große Anzahl einzelner Verteilerrohre aufweist, die am Ende etwa parallel zur Achse des Verteilerkcgels hin gebogen in mittels einzeln oder gemeinsam zu betätigender Ventile absperrbare Auslauföffnungen eines Ringes münden, nach Patent 1 939 871, dadurch gekennzeichnet, daß für die Zuführung des Kühlmittels zu jedem Schmelzestrang eine Mehrzahl von Abzugsdüsen (2) ange- ordnet ist und daß alle Abzugsdüsen (2) aus einem diese umgebenden Sieb (6), durch das das Kühlmittel hochdrückbar ist, nach oben herausragen.1. Device for drawing off melts, in particular organic melts and plastics, with the help of liquid substances, on the one hand as a coolant and on the other hand as a suction agent serve for the drainage of the melt and its speed and / or amount can be regulated is, the melt initially in an essentially parallel to the outflow direction of the Melt-directed coolant and suction medium flow can be guided and together with the coolant and suction medium can be discharged and one pourer is provided with a main valve and one with «5 Has truncated distributor cone surrounded by metal sheets, the radial cone inclination having a large Has number of individual distribution pipes, which at the end approximately parallel to the axis of the distribution cone curved towards outlet openings that can be shut off by means of individually or jointly operated valves of a ring open, according to patent 1 939 871, characterized in that for the Supply of the coolant to each melt strand a plurality of take-off nozzles (2) is arranged and that all exhaust nozzles (2) from a surrounding sieve (6) through which the coolant can be pushed up, protrude upwards. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Sieb (6) nach oben über die Abzugsdüsen (2) abnehmbar ist.2. Apparatus according to claim 1, characterized in that the sieve (6) upwards over the exhaust nozzle (2) is removable.
DE2029492A 1969-08-06 1970-06-15 Device for drawing off melts, in particular organic melts and plastics Expired DE2029492C3 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE2029492A DE2029492C3 (en) 1970-06-15 1970-06-15 Device for drawing off melts, in particular organic melts and plastics
CS5434A CS178070B2 (en) 1969-08-06 1970-08-04
FR7028736A FR2056570A5 (en) 1969-08-06 1970-08-04
AT708470A AT320266B (en) 1969-08-06 1970-08-04 Device for drawing off melts, in particular melts of an organic type, such as plastics, and for the production of granules
CH1175370A CH520522A (en) 1969-08-06 1970-08-04 Device for drawing off melts, in particular melts of an organic type, such as plastics, and for the production of granules
PL14252070A PL80962B1 (en) 1969-08-06 1970-08-04
BE754427D BE754427A (en) 1969-08-06 1970-08-05 APPARATUS FOR MANUFACTURING A PELLET OF SYNTHETIC MATERIAL
SE10736/70A SE352015B (en) 1969-08-06 1970-08-05
JP45068994A JPS5225422B1 (en) 1969-08-06 1970-08-06
NL7011659.A NL166878C (en) 1969-08-06 1970-08-06 Apparatus for drawing melts in the form of strands and for producing granules from the strands.
GB3792970A GB1306979A (en) 1969-08-06 1970-08-06 Production of granules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2029492A DE2029492C3 (en) 1970-06-15 1970-06-15 Device for drawing off melts, in particular organic melts and plastics

Publications (3)

Publication Number Publication Date
DE2029492A1 DE2029492A1 (en) 1972-07-06
DE2029492B2 DE2029492B2 (en) 1973-06-14
DE2029492C3 true DE2029492C3 (en) 1974-02-21

Family

ID=5774019

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2029492A Expired DE2029492C3 (en) 1969-08-06 1970-06-15 Device for drawing off melts, in particular organic melts and plastics

Country Status (1)

Country Link
DE (1) DE2029492C3 (en)

Also Published As

Publication number Publication date
DE2029492B2 (en) 1973-06-14
DE2029492A1 (en) 1972-07-06

Similar Documents

Publication Publication Date Title
DE3342016C2 (en) Device for mixing and settling liquids containing particles
DE2129974B2 (en) Device for wet cleaning of reaction and combustion gases
DE2106316B2 (en) Sieve device in pulp digesters
DE1761339C3 (en) Device for separating the liquid content of a fiber slurry
DE1557184A1 (en) Device for continuous mixing, homogenizing and aerating of pasty masses, especially chocolate masses
DE658208C (en) Spinneret for artificial silk u. like
DE2029492C3 (en) Device for drawing off melts, in particular organic melts and plastics
DE1231050B (en) Spray device for combating plant pests
DE577048C (en) Nozzle for filter material jet washer
DE2727724C2 (en) Filling element without filling tube for counter pressure filling machines
DE2058395A1 (en) Screening device for separating solids from fluid flows in pipelines
DE2542426A1 (en) DEVICE FOR FILTERING A FLUID
DE1058511B (en) Device for carrying out oxidations in a liquid state with oxygen-containing gases
DE240354C (en)
DE448795C (en) Funnel-shaped overmolding insert with a riser pipe intended for cooking vessels
DE1966407C3 (en) Device for drawing off melts, in particular organic melts and plastics. Eliminated from: 1939871
DE1102650B (en) Pneumatic conveyor for conveying bulk goods by means of compressed air from a container into a pipeline
DE2305234A1 (en) METHOD AND DEVICE FOR DISCHARGING GRAINY MATERIAL FROM A CONTAINER
DE3138808A1 (en) Device for the continuous mixing of a building material with water
AT158717B (en) Rectifying, washing and reaction column trays.
DE323256C (en) Device for extracting air using jets of water
DE4419129C1 (en) Sepn. column process and assembly
CH663158A5 (en) CARTRIDGE FILTER AND FILTER DEVICE.
AT266867B (en) Nozzle for backwashable water treatment devices with nozzle bottom
DE859856C (en) Device for washing fibrous fabrics

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977