US2171399A - Method and apparatus for homogenizing powdered mixtures - Google Patents

Method and apparatus for homogenizing powdered mixtures Download PDF

Info

Publication number
US2171399A
US2171399A US30574A US3057435A US2171399A US 2171399 A US2171399 A US 2171399A US 30574 A US30574 A US 30574A US 3057435 A US3057435 A US 3057435A US 2171399 A US2171399 A US 2171399A
Authority
US
United States
Prior art keywords
air
homogenizing
currents
mass
powdered mixtures
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
US30574A
Inventor
Hastert Edouard
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
Application granted granted Critical
Publication of US2171399A publication Critical patent/US2171399A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/406—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles with gas supply only at the bottom

Definitions

  • the air under pressure used for homogenizing powdered or pulverulent masses has to accomplish two diflerent functions. First this air produces in the powdered mass trapsport currents of variable localiration and secondly this air has to drive into these currents powdered mass taken vfrom around it.
  • the invention thus provides for introducing .0 the amount of air in conditions of delivery, pressure and emplacement such as to produce in .the powdered mass distinct currents taking along the whole of their travel material from the surrounding mass, and'this with an impulse suiiicient for 5 going through the whole width of the mass.
  • the invention also provides for producing the incorporation. of part of the surrounding mass in the transport currents by continually varying the impulse imparted to these currents.
  • the invention provides for varying this impulsion of the air under pressure in the mass to be treated.
  • Figure l is a' longitudinal vertical section; Figure 2.is in its left part a section along- Ila-41 of Figure 1 and in its right part va section along IIb-AIb of Figure 1.
  • air ducts such as T are provided, the number, form and disposition of which being determined for each particular case. These ducts are provided withapertures of small section for the in- 5 troductlon of air in the mass to be treated.
  • Each of these ducts is connected to the air supply header B by a valve chamber 8.
  • the diflerent valves are actuated by a cam-shaft A common to all the valves.
  • the form of the cams and their 40 arrangement on the shaft A determine the order of air admission in each duct, the relative duration .of each admission and the amount of impulsion, which last is in'relatlon with the degree July 9, 1935, Serial No. 30,574 Germany October 24, 1934 of maximum aperture of the different valves.
  • the rotational speed of the shaft A determines the frequency of the variations of impulsion of the different transport currents. vThe speed, by
  • the invention provides for es-' tablishing between the delivery of air under pressure and the speed of rotation of theshaft A such a relation that the impulse imparted to the matter in the proximity of the air introduction apertures be suiiicient to maintain it away from these apertures.
  • a process for homogenizing pulverulent material consisting in injecting currents of air of varied speed into non-contiguous locations of the material to be treated.
  • a process for homogenizing pulverulent material consisting in injecting a plurality of currents of air into non-contiguous locations of the material to be treated, and varying the locations of injection of said currents of air.
  • Apparatus of the character described comprising-a vessel for holding material to be homogenized, means for supplying compressed air associated with the base of said vessel, conduits for feeding air under pressure from said supply means to regions within said vessel adjacent the base thereof, and means for controlling the periodic admission of compressed air to said conduits.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Air Transport Of Granular Materials (AREA)

Description

E. HASTERT Aug. 29, 1939.
METHOD AND APPARATUS FOR HOMOGENIZING POWDERED MIXTURES Filed July 9, -1935 Patented Aug. 29, 1939 PATENT OFHFIC'F.
METHOD AND APPARATUS roa HOMOGEN- rznvc rownnann Mix-mans Edouard Hastert, Esch-Alzctte, Luxemburg, as.- signor'to Louis Peters, Duesseldorf, Germany Application 3 Claims.
According to this invention the air under pressure used for homogenizing powdered or pulverulent masses has to accomplish two diflerent functions. First this air produces in the powdered mass trapsport currents of variable localiration and secondly this air has to drive into these currents powdered mass taken vfrom around it.
r The invention thus provides for introducing .0 the amount of air in conditions of delivery, pressure and emplacement such as to produce in .the powdered mass distinct currents taking along the whole of their travel material from the surrounding mass, and'this with an impulse suiiicient for 5 going through the whole width of the mass.
The invention also provides for producing the incorporation. of part of the surrounding mass in the transport currents by continually varying the impulse imparted to these currents.
And also the invention provides for varying this impulsion of the air under pressure in the mass to be treated.
The accompanying drawing shows by way of example, and in a non-limitating manner, a'de- 25 vice for carrying out the invention.
In the drawing: Figure l is a' longitudinal vertical section; Figure 2.is in its left part a section along- Ila-41 of Figure 1 and in its right part va section along IIb-AIb of Figure 1.
Inthe bottom of the receptacle or container M air ducts such as T are provided, the number, form and disposition of which being determined for each particular case. These ducts are provided withapertures of small section for the in- 5 troductlon of air in the mass to be treated.
Each of these ducts is connected to the air supply header B by a valve chamber 8. The diflerent valves are actuated by a cam-shaft A common to all the valves. The form of the cams and their 40 arrangement on the shaft A determine the order of air admission in each duct, the relative duration .of each admission and the amount of impulsion, which last is in'relatlon with the degree July 9, 1935, Serial No. 30,574 Germany October 24, 1934 of maximum aperture of the different valves. The rotational speed of the shaft A determines the frequency of the variations of impulsion of the different transport currents. vThe speed, by
I acting on the eiiective duration of each impulse, 5
also acts on its amplitude, that is, on the extent of its influence zone.
For preventing matter in treatment penetrating the air ducts, the invention provides for es-' tablishing between the delivery of air under pressure and the speed of rotation of theshaft A such a relation that the impulse imparted to the matter in the proximity of the air introduction apertures be suiiicient to maintain it away from these apertures.
When the container has been filled with powdered mass, air is admitted in the header B and the shaft A is put in rotation.
Whenthe matter is homogenized, it is talren out otthe container by the discharge opening V, the action of air under pressure, being maintained until the container is wholly empty.
What I claim is:
1. A process for homogenizing pulverulent material, consisting in injecting currents of air of varied speed into non-contiguous locations of the material to be treated. o
-2. A process for homogenizing pulverulent material, consisting in injecting a plurality of currents of air into non-contiguous locations of the material to be treated, and varying the locations of injection of said currents of air.
3. Apparatus of the character described, comprising-a vessel for holding material to be homogenized, means for supplying compressed air associated with the base of said vessel, conduits for feeding air under pressure from said supply means to regions within said vessel adjacent the base thereof, and means for controlling the periodic admission of compressed air to said conduits.
EDOUARD HAS I T.
US30574A 1934-10-24 1935-07-09 Method and apparatus for homogenizing powdered mixtures Expired - Lifetime US2171399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2171399X 1934-10-24

Publications (1)

Publication Number Publication Date
US2171399A true US2171399A (en) 1939-08-29

Family

ID=7988442

Family Applications (1)

Application Number Title Priority Date Filing Date
US30574A Expired - Lifetime US2171399A (en) 1934-10-24 1935-07-09 Method and apparatus for homogenizing powdered mixtures

Country Status (1)

Country Link
US (1) US2171399A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073576A (en) * 1959-05-16 1963-01-15 Kloeckner Humboldt Deutz Ag Pneumatic mixer for pulverulent or fine-granular material
US3148864A (en) * 1960-11-02 1964-09-15 Gouverneur Talc Company Inc Pneumatic conveying and reclaiming method and apparatus
US4664526A (en) * 1984-09-22 1987-05-12 Peter Scheffler Process and apparatus for mixing a liquid sample to be analyzed
US20020163854A1 (en) * 2001-05-07 2002-11-07 Parks Richard E. Method and apparatus for gas induced mixing and blending of fluids and other materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073576A (en) * 1959-05-16 1963-01-15 Kloeckner Humboldt Deutz Ag Pneumatic mixer for pulverulent or fine-granular material
US3148864A (en) * 1960-11-02 1964-09-15 Gouverneur Talc Company Inc Pneumatic conveying and reclaiming method and apparatus
US4664526A (en) * 1984-09-22 1987-05-12 Peter Scheffler Process and apparatus for mixing a liquid sample to be analyzed
US20020163854A1 (en) * 2001-05-07 2002-11-07 Parks Richard E. Method and apparatus for gas induced mixing and blending of fluids and other materials
US6629773B2 (en) * 2001-05-07 2003-10-07 Richard E. Parks Method and apparatus for gas induced mixing and blending of fluids and other materials

Similar Documents

Publication Publication Date Title
US3700468A (en) Sterilizing separate compartments of particulate material
US3055744A (en) Apparatus for the fermentation of solid organic waste materials for making compost
US2171399A (en) Method and apparatus for homogenizing powdered mixtures
US3979170A (en) Apparatus for injection molding articles composed of a material in which are embedded masses of one or more other materials
US2194728A (en) Method and apparatus for making ropes or cords from glass or slag
US1415830A (en) Agitator
US1722289A (en) Pump
US1695383A (en) Method of and apparatus for separating and cleaning mica
US1413332A (en) Process of converting viscous materials
GB979932A (en) Method and apparatus for enveloping granular and/or shortfibred substances in coatings of other substances
US742385A (en) Mixing apparatus.
US2466130A (en) Process and apparatus for drying materials
US989126A (en) Machine for hydrating lime.
US1284305A (en) Process of drying edible pastes.
US1666130A (en) Mica-separating machine
US778558A (en) Apparatus for treating asphalt.
US1308904A (en) Method of aerating liquescent material and machine for the purpose
US1190554A (en) Feeding mechanism for nut-blanching machines.
US2081512A (en) Apparatus for preparing food substances
US1933529A (en) Method of surface treating glassware
US1457459A (en) Feed mechanism for small metal articles
US2622724A (en) Continuous process rotary apparatus
US964550A (en) Apparatus for the manufacture of black powder and other explosives.
US2017691A (en) Method of processing fiber cakes
DE490892C (en) Peat press