GB416168A - Method of aerating slurries - Google Patents

Method of aerating slurries

Info

Publication number
GB416168A
GB416168A GB1992933A GB1992933A GB416168A GB 416168 A GB416168 A GB 416168A GB 1992933 A GB1992933 A GB 1992933A GB 1992933 A GB1992933 A GB 1992933A GB 416168 A GB416168 A GB 416168A
Authority
GB
United Kingdom
Prior art keywords
slurry
chamber
air
pressure
unaerated
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
GB1992933A
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 GB1992933A priority Critical patent/GB416168A/en
Publication of GB416168A publication Critical patent/GB416168A/en
Expired legal-status Critical Current

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
    • B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
    • B28C5/381—Producing cellular concrete
    • B28C5/383—Producing cellular concrete comprising stirrers to effect the mixing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

416,168. Foam. HARRISON, A. H., Gold Pines, Ontario, Canada. July 14, 1933, No. 19929. [Class 47 (ii).] An aerated slurry of inorganic building materials such as cement, plaster of Paris, lime, or clay, is prepared by the process of agitation in an enclosed space under pressure in the presence of an emulsifying agent, characterized in that a product of predetermined density is formed by regulating the pressure to a predetermined amount. The slurry is admitted to the closed space to but partially fill the space, so that the volume of air in the agitating chamber is greater than that incorporated in the slurry. The relative volumes of air and unaerated slurry in the mixing chamber are preferably 2 : 1. The aerated slurry may be agitated after relieving the pressure to reduce the size of the cells. In a preferred form the apparatus comprises a chamber 1 containing shafts 2, carrying a plurality of agitator blades 3, which revolve at 270 r.p.m. and have the ends bent at right angles along the sides of the chamber to scrape and clean the inner walls. Slurry is fed in at inlet 5 by a pump, and discharged at outlet 7 by a pump 8 driven from shaft 10. Impellers 11 to accelerate the travel of the slurry are provided. Air is admitted under pressure at 12. A travelling belt 16 is provided to remove the unaerated slurry. The time of agitation is approximately 2 minutes. Examples are given showing the density of the slurry which may be produced under different conditions.
GB1992933A 1933-07-14 1933-07-14 Method of aerating slurries Expired GB416168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1992933A GB416168A (en) 1933-07-14 1933-07-14 Method of aerating slurries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1992933A GB416168A (en) 1933-07-14 1933-07-14 Method of aerating slurries

Publications (1)

Publication Number Publication Date
GB416168A true GB416168A (en) 1934-09-13

Family

ID=10137480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1992933A Expired GB416168A (en) 1933-07-14 1933-07-14 Method of aerating slurries

Country Status (1)

Country Link
GB (1) GB416168A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666271A1 (en) * 1989-12-15 1992-03-06 Hutt Rene PROCESS FOR PRODUCING A FOAM BASED BINDER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666271A1 (en) * 1989-12-15 1992-03-06 Hutt Rene PROCESS FOR PRODUCING A FOAM BASED BINDER.

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