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Publication numberUS1545055 A
Publication typeGrant
Publication dateJul 7, 1925
Filing dateJun 7, 1924
Publication numberUS 1545055 A, US 1545055A, US-A-1545055, US1545055 A, US1545055A
InventorsPovii T. Lindhard
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rotary cooler
US 1545055 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

July 7, 1925. 1,545,055A


Filed June v. 1924 2 sheets-sheet 1 `uly 7, 1925.


Filed June '7, 1924 2 Sheets-Sheet 2 Patented July 7, 1925.




Application led .Tune 7,

To LIZ whom 'it may concern.'

Be it known that l, Fovr. T. LINDHARD, a citizen of the United States, residing in thev borough of Brooklyn, of the city of New York, in the State of New York, have invented certain new and useful lmprovements in Rotary Coolers for Cement Clinker, Etc.,

of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

This invention relates to rotary coolers of the general type of that shown in Letters Patent of the 'United States No. 1,049,610, dated January 7, 1913, and No. 1,503,193, dated July 29, 1924. The object of the present invention has been not only to improve the construction in some particulars but to simplify and reduce the cost of construction of such coolers, particularly when the cooling requirements are not severe, as when the room in which the cooler is placed is well ventilated and the heat radiated from the shell of the cooler is readily disposed of. rlhe invention is particularly concerned with the introduction of the cooling air, the construction and arrangement of the air seals, the suppression of dust, etc., and will be eX- plained more particularly hereinafter with reference to the accompanying drawings in which it is illustrated and in which- Figure 1 is a view in longitudinal section,

vpartly diagrammatic, of a cooler in which the improvements are embodied.

Figure 2 is a view in transverse section on the plane indicated by the broken line 2 2 Df Figure 1.

Figure 3 is a detail view in section and on a larger scale showing particularly the construction and arrangement of ,the air seals at the feed end of the cooler.

'i Figures 4 and 5 are detail views in section on the planes indicated by the broken lines 4-4 and 5.-5, respectively, of Figure 3.A

Figure 6 is a detail view in section, also on a larger scale, showing particularly the construction of the air seal at the discharge end of the cooler.

, In the embodiment of the invention illustrated the outer or main shell'a is shown as cylindrical and as supported as usual by riding rings or tires a which rest on rollers ya?, movement of rotation being imparted to the shell in any suitable manner. Within the main shell, separated therefrom by an annular space and extended from the feed 1924. Serial No. 718,456.

f end of the cooler for a portion only of its length, is an inner shell b, which is open at both ends, its left hand end having a conical flange, as at b', to prevent the spilling of the clinker into the dust chamber e. rl`he annular space between the two shells is closed at the left hand end, as by a Hange b2, but is open at thel right hand end so as to permit the free passage of air from the annular space within the shell b at a point relatively near the feed end of the cooler'. This cooling air, which first comes in contact with the shell b and then with the incoming clinker where the temperature is highest, is received under pressure from any suitable source, such as a fan d, being conducted through a conduit al to an air pressure chamber d3 formed between air seals Z4 and d supported in the wall of the dust chamber', the cooling air passing from the chamber, d? to the annular space between the two shells through openings d formed in the main shell a. The coolingair, after it hasperformed its function, passes, as usual, through the open end of the inner shell b into the dust chamber e from which it escapes after the dust has been deposited. 'lhe hot clinker or other material to be cooled is delivered from the kiln or other source through a chute f and the open end of the inner shell b into the space within the shell and then travels, as usual, to the discharge end of the cooler.

Near its discharge end the main shell a may be formed with holes to permit the smaller clinker to be discharged and is provided at its end with an inturned angle a4 to impede the passage of the smaller'clinker, while permitting the larger pieces of clinker to pass from the shell. rlhe discharge end of the shell is enclosed within4 a hood h which has at k an inlet for cooling air under pressure from any source and at 72.2 an air seal. The hood has also a partition ha which fits rather closely to the shell at its under side, preferably for about a third of its circumference, as shown at h4 in Figure 2, but through the remainder of the circumference is separated therefrom by a partly annular space as at k to permit the free passage of air from the air chamber he intothe chamber k7 of the hood, this air passage h being formed by a conical flange 72.8 to direct the passage of air into the air

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2434845 *Dec 15, 1943Jan 20, 1948Fuller CoCooling means for rotary kiln nose rings
US2677195 *Jun 26, 1951May 4, 1954Rudolf LorenzApparatus for treating granular materials
US2877562 *Jun 26, 1956Mar 17, 1959Svenska Flaektfabriken AbCirculating gaseous medium through rotating drums
US2952356 *Apr 12, 1954Sep 13, 1960Exxon Research Engineering CoControl of particle size distribution in fluid coking of petroleum oils
US3076270 *Aug 11, 1958Feb 5, 1963Baldwin Lima Hamilton CorpSand or fines filtering device for dryers
US3302937 *May 19, 1964Feb 7, 1967Pelm Res And Dev CorpApparatus for colling metallic and nonmetallic particles
US5116363 *May 6, 1991May 26, 1992Romweber Frank TMethod and apparatus for conditioning refuse
US5220732 *Feb 10, 1992Jun 22, 1993Michael LeeCooling rocks and sand
US5412881 *May 22, 1992May 9, 1995Rss, Inc.Method and apparatus for conditioning refuse
US5613306 *May 8, 1995Mar 25, 1997Rapo-Shrink, Inc.Method and apparatus for conditioning refuse
US20130042493 *Apr 30, 2010Feb 21, 2013Enbiocons Co., LtdOrganic waste drying apparatus
U.S. Classification34/137, 34/85, 34/432
International ClassificationF26B11/00, F26B11/02
Cooperative ClassificationF26B11/028
European ClassificationF26B11/02E