US1786713A - Method of manufacturing artificial aggregate for mortars and concretes - Google Patents

Method of manufacturing artificial aggregate for mortars and concretes Download PDF

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Publication number
US1786713A
US1786713A US340642A US34064229A US1786713A US 1786713 A US1786713 A US 1786713A US 340642 A US340642 A US 340642A US 34064229 A US34064229 A US 34064229A US 1786713 A US1786713 A US 1786713A
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US
United States
Prior art keywords
charge
clay
sintering
concretes
mortars
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
US340642A
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English (en)
Inventor
John E Greenawalt
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 US340642A priority Critical patent/US1786713A/en
Priority to FR696068D priority patent/FR696068A/fr
Priority to DE1930562485D priority patent/DE562485C/de
Priority to BE370602A priority patent/BE370602A/fr
Application granted granted Critical
Publication of US1786713A publication Critical patent/US1786713A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C04B20/063—Expanding clay, perlite, vermiculite or like granular materials by grate sintering
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/101—Aggregate and pellet

Definitions

  • My invention contemplates the sintering of a charge made up of finely crushed clay' and ordinary furnace cindc Tie proportion of from 20 ,0 o o 76 cinders.
  • the cinders used contain all the original substance as they come from the grate, that is ashes, clinkers, unburned coal and coke, the coal and coke being present in suflicient quantity to furnish the necessary fuel for sintering.
  • These cinders are finely crushed and mixed with the crushed clay in the proportions mentioned, and the charge thus made up then moistened slightly with water. If desired, the moistening may be done while the cinders and clay are being mixed.
  • This charge is then placed on a sintering apparatus of either the Greenawaltor Dwight & Lloyd type, care being taken not to compact the charge as it is important that the voids therein be preserved.
  • a Greenawalt sintering apparatus comprising a rotatable pan, 1, to the hollow trunnions 2, 2 of which is connected a dust chamber 3 by means of conduits 4, 4.
  • a suitable exhauster 5 serves to create suction in the chamber 3, and of course through the pan, and has its outlet 6 connected to a stack 7.
  • a charge car 8 may be used to feed the material 727., m onto the grate 9 of the sintering pan, said material being preferably fed with the component m of the coarser particles directly onto the grate and the component m of the finer particles on the coarser particles.
  • An igniter 10 is now moved into position over the charge C and the exhauster 5 set into operation after which the fuel in the igniter is kindled to immediately fill the igniter with flame, which is sucked into the charge by the action of the exhauster and ignites the combustibles therein.
  • the particles of clinker and ash in the charge not only preserve its voids and permit the passage of air therethrough, but also supply silica which fuses readily and unites with the expanded and partially fused clay particles.
  • silica which fuses readily and unites with the expanded and partially fused clay particles.
  • sintering and sinter have substantially the same meaning that they have in the metallurgical art: to wit, sintering in the process of treating materials (generally metalliferous) by subjecting a charge of finely crushed material containing a combustible to the heat'generated by the internal combustion of said fuel supported by a blast of air passing through the charge. Ignition is effected by the momentary action of a flame at one surface of the charge, the combustion being carried on through the charge under the influence of the air blast.
  • a sinter is the hard, cellular or porous, product of comparative light wei ht produced by this sintering action.
US340642A 1929-02-16 1929-02-16 Method of manufacturing artificial aggregate for mortars and concretes Expired - Lifetime US1786713A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US340642A US1786713A (en) 1929-02-16 1929-02-16 Method of manufacturing artificial aggregate for mortars and concretes
FR696068D FR696068A (fr) 1929-02-16 1930-05-24 Procédé de frittage de l'argile
DE1930562485D DE562485C (de) 1929-02-16 1930-05-25 Verfahren zur Erzeugung eines Zuschlagmaterials fuer Moertel, Beton u. dgl.
BE370602A BE370602A (fr) 1929-02-16 1930-05-29 Procédé de frittage de l'argile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US340642A US1786713A (en) 1929-02-16 1929-02-16 Method of manufacturing artificial aggregate for mortars and concretes

Publications (1)

Publication Number Publication Date
US1786713A true US1786713A (en) 1930-12-30

Family

ID=23334317

Family Applications (1)

Application Number Title Priority Date Filing Date
US340642A Expired - Lifetime US1786713A (en) 1929-02-16 1929-02-16 Method of manufacturing artificial aggregate for mortars and concretes

Country Status (4)

Country Link
US (1) US1786713A (de)
BE (1) BE370602A (de)
DE (1) DE562485C (de)
FR (1) FR696068A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444361A (en) * 1945-07-06 1948-06-29 Republic Steel Corp Refractory article

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833314C (de) * 1943-03-30 1952-03-06 Metallgesellschaft Ag Verfahren zur Herstellung von poroesen Massen durch Gluehen eines Kaolin und Tonerdeenthaltenden Gemenges
DE973724C (de) * 1947-10-24 1960-05-19 Wilhelm Biek Verfahren und Einrichtung zur Herstellung von Baustoffen
DE1148176B (de) * 1960-11-15 1963-05-02 Betonwerk W Reber G M B H Herstellung eines Betonzuschlagstoffes aus Geschiebemergel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444361A (en) * 1945-07-06 1948-06-29 Republic Steel Corp Refractory article

Also Published As

Publication number Publication date
BE370602A (fr) 1930-06-30
FR696068A (fr) 1930-12-26
DE562485C (de) 1932-10-26

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