US3612488A - Mixer - Google Patents

Mixer Download PDF

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Publication number
US3612488A
US3612488A US873003A US3612488DA US3612488A US 3612488 A US3612488 A US 3612488A US 873003 A US873003 A US 873003A US 3612488D A US3612488D A US 3612488DA US 3612488 A US3612488 A US 3612488A
Authority
US
United States
Prior art keywords
tank
stirrer
tubular
tines
components
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 - Lifetime
Application number
US873003A
Other languages
English (en)
Inventor
Gunter Friedrich Bartel
Martin Klawitter
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.)
Kunststoffbuero Osnabrueck Dr Reuter GmbH and Co KG
Original Assignee
Kunststoffbuero Osnabrueck Dr Reuter GmbH and Co KG
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 Kunststoffbuero Osnabrueck Dr Reuter GmbH and Co KG filed Critical Kunststoffbuero Osnabrueck Dr Reuter GmbH and Co KG
Application granted granted Critical
Publication of US3612488A publication Critical patent/US3612488A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary

Definitions

  • MIXER This invention relates generally to mixing devices and more particularly to an apparatus adapted to mix rapidly the chemical reactive components of a synthetic resin such as a polyurethane.
  • a mixer having a tank with a mixing chamber and an open ended tubular stirrer forked into a plurality of tines which serve as mixing blades.
  • the stirrer is adapted to receive components to be mixed together at its upper end and to discharge them through the open ends of the tines.
  • An overflow pipe extends through the bottom of the mixer and terminates with an open end.
  • the overflow pipe is located outside the path of the rotating tines.
  • the overflow pipe is arranged centrally and vertically in the mixer.
  • the mixer provided by this invention can be used for mixing various liquids with other liquids or solids. It is particularlyadvantageous for mixing organic polyisocyanates, organic ,compounds having reactive hydrogen atoms such as polyesters, polyethers and the like and other components of a reaction mixture which forms upon chemical reaction a polyurethane plastic. It can be used, for example, to prepare the mixtures described in U.S. Pat. Nos. 2,764,565 and 2,729,618 and similar patents for making polyurethane plastics.
  • the apparatus of this invention is particularly advantageous because it is of such simple construction but assures substantially uniform mixing of the components together.
  • the use of feedpipes with attendant complicated sealing means is avoided.
  • the agitator blades form a fork, space is conveniently provided for extension of an overflow pipe into the center of the mixer. It can, of course, be spaced from the center, if desired, as long as it wont be struck by the stirrer.
  • a tank or container 1 is provided with a tubular fork-shaped stirrer 2 adapted to be driven through shait3 by motor 4.
  • a pin or spider extends through shaft 3 and the wall of tube 5 to cause the two to be rotated together.
  • the stirrer 2 has a single tube portion 5 extending through the top of tank I and forks into two tines 6 and 7 within tank 1.
  • Passageways l3, l4 and 15 communicate with each other and with tubular portion 5 and tines 6 and 7.
  • the shape of stirrer 2 somewhat resembles an inverted Y.
  • Conduits 8, 9, l0 and 11 conduct components to be mixed together into passageway 13. The components are swirled and mixed with each otheras they pass through passageways l3, l4 and 15.
  • An overflow tube or pipe 12 extends through the bottom wall of tank 1 and terminates in an open end between the tines 6 and 7.
  • Tube 12 is preferably centered in tank ll.
  • a mixing device comprising a container and within said container a tubular fork-shaped stirrer extending as a single open ended tube through the top of said tank and forking into tubular tines having open ends within said tank, means adjacent the top of said tank for introducing components to be mixed into said single tube, and an overflow tubular member for discharging liquid through the bottom of said container extending into said tank and having an open end temiinating between the forked tubular portions of said stirrer.
  • a method for mixing liquids which comprises introducing at least two liquids into the top of a tubular fork-shaped stirrer extending as a single open ended tube through the top of a tank and forking into tubular tines having open ends within said tank, rotating said stirrer, allowing liquid to flow from the tines of said stirrer into said tank and collecting liquid mixture from an overflow tubular member extending into said tank and having an open end terminating between the forked tubular portions of said stirrer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Tubes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US873003A 1968-11-02 1969-10-31 Mixer Expired - Lifetime US3612488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681806639 DE1806639A1 (de) 1968-11-02 1968-11-02 Mischvorrichtung zum Aufbereiten von Mehrkomponenten-Kunststoffen

Publications (1)

Publication Number Publication Date
US3612488A true US3612488A (en) 1971-10-12

Family

ID=5712189

Family Applications (1)

Application Number Title Priority Date Filing Date
US873003A Expired - Lifetime US3612488A (en) 1968-11-02 1969-10-31 Mixer

Country Status (6)

Country Link
US (1) US3612488A (enrdf_load_stackoverflow)
BR (1) BR6913761D0 (enrdf_load_stackoverflow)
DE (1) DE1806639A1 (enrdf_load_stackoverflow)
FR (1) FR2022442A1 (enrdf_load_stackoverflow)
GB (1) GB1227067A (enrdf_load_stackoverflow)
SE (1) SE347194B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127137A (en) * 1975-12-11 1978-11-28 Butcher Reginald H Washing apparatus
US4217145A (en) * 1977-01-12 1980-08-12 Gaddis Preston G Process for admixing polymer emulsions with water to produce highly viscous liquids
US4820269A (en) * 1983-03-07 1989-04-11 Vanderbilt University Mixer apparatus for controlling intravenous drug infusion

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE26398C (de) * F. MÜLLER in Hadamar Mantelschornstein mit Ventilationseinrichtung
US3414245A (en) * 1965-05-07 1968-12-03 Frazer David Froth flotation apparatus or pump device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE26398C (de) * F. MÜLLER in Hadamar Mantelschornstein mit Ventilationseinrichtung
US3414245A (en) * 1965-05-07 1968-12-03 Frazer David Froth flotation apparatus or pump device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127137A (en) * 1975-12-11 1978-11-28 Butcher Reginald H Washing apparatus
US4217145A (en) * 1977-01-12 1980-08-12 Gaddis Preston G Process for admixing polymer emulsions with water to produce highly viscous liquids
US4820269A (en) * 1983-03-07 1989-04-11 Vanderbilt University Mixer apparatus for controlling intravenous drug infusion

Also Published As

Publication number Publication date
SE347194B (enrdf_load_stackoverflow) 1972-07-31
FR2022442A1 (enrdf_load_stackoverflow) 1970-07-31
DE1806639A1 (de) 1970-05-21
BR6913761D0 (pt) 1973-01-11
GB1227067A (enrdf_load_stackoverflow) 1971-03-31

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