GB619888A - Improvements in or relating to a method of and apparatus for manufacturing light-weight aggregate for concrete - Google Patents

Improvements in or relating to a method of and apparatus for manufacturing light-weight aggregate for concrete

Info

Publication number
GB619888A
GB619888A GB2531246A GB2531246A GB619888A GB 619888 A GB619888 A GB 619888A GB 2531246 A GB2531246 A GB 2531246A GB 2531246 A GB2531246 A GB 2531246A GB 619888 A GB619888 A GB 619888A
Authority
GB
United Kingdom
Prior art keywords
clay
heated
kiln
heating zone
expansion
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
GB2531246A
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.)
AMERICAN AGGRCGATC Co Inc
Original Assignee
AMERICAN AGGRCGATC Co Inc
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 AMERICAN AGGRCGATC Co Inc filed Critical AMERICAN AGGRCGATC Co Inc
Priority to GB2531246A priority Critical patent/GB619888A/en
Publication of GB619888A publication Critical patent/GB619888A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
    • F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
    • F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • C04B20/06—Expanding clay, perlite, vermiculite or like granular materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

619,888. Rotary kilns. RYNER, A. (American Aggregate Co., Inc.). Aug. 23, 1946, No. 25312. [Class 51 (ii)] [Also in Group V] A method of manufacturing light-weight aggregate from clay consists in breaking up the clay, passing the clay in its divided form through an initial heating zone for a time sufficient to heat the clay uniformly to a temperature slightly less than that required to cause expansion thereof and then subjecting the heated clay to the heat of a final heating zone at a higher temperature which is sufficient to precipitate expansion of the clay. In apparatus for carrying out the above method a rotary kiln, into which clay is charged in a divided form, is provided with an internal wall having projections 10 which lift the clay and allow it to fall through a flame 14 directed along the axis of the kiln : at this stage the clay is heated to a temperature below that at which expansion and hardening occur. The clay passes to a final heating zone constituted by the lower end of the kiln and is heated by a burner 24, the clay expanding and hardening. An adjustable intermediate burner 20 may be provided so that supplementary heating may be furnished as required.
GB2531246A 1946-08-23 1946-08-23 Improvements in or relating to a method of and apparatus for manufacturing light-weight aggregate for concrete Expired GB619888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2531246A GB619888A (en) 1946-08-23 1946-08-23 Improvements in or relating to a method of and apparatus for manufacturing light-weight aggregate for concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2531246A GB619888A (en) 1946-08-23 1946-08-23 Improvements in or relating to a method of and apparatus for manufacturing light-weight aggregate for concrete

Publications (1)

Publication Number Publication Date
GB619888A true GB619888A (en) 1949-03-16

Family

ID=10225669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2531246A Expired GB619888A (en) 1946-08-23 1946-08-23 Improvements in or relating to a method of and apparatus for manufacturing light-weight aggregate for concrete

Country Status (1)

Country Link
GB (1) GB619888A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227789A (en) * 1961-04-12 1966-01-04 Chemical & Ind Corp Process of pelletizing a water soluble material
FR2366921A1 (en) * 1976-10-11 1978-05-05 Tsex P Porous aggregate with hard crust prodn. - by roasting for very short period at high temp., used esp. for lightweight concrete mfr. (DK 1.5.78)
GB2128307A (en) * 1982-10-01 1984-04-26 Mansfeld Kombinat W Pieck Veb Apparatus for the drying and de-oiling of metal swarf

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227789A (en) * 1961-04-12 1966-01-04 Chemical & Ind Corp Process of pelletizing a water soluble material
FR2366921A1 (en) * 1976-10-11 1978-05-05 Tsex P Porous aggregate with hard crust prodn. - by roasting for very short period at high temp., used esp. for lightweight concrete mfr. (DK 1.5.78)
GB2128307A (en) * 1982-10-01 1984-04-26 Mansfeld Kombinat W Pieck Veb Apparatus for the drying and de-oiling of metal swarf

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