GB670083A - Improvements in or relating to methods of and apparatus for effecting drying and products produced thereby - Google Patents

Improvements in or relating to methods of and apparatus for effecting drying and products produced thereby

Info

Publication number
GB670083A
GB670083A GB27183/48A GB2718348A GB670083A GB 670083 A GB670083 A GB 670083A GB 27183/48 A GB27183/48 A GB 27183/48A GB 2718348 A GB2718348 A GB 2718348A GB 670083 A GB670083 A GB 670083A
Authority
GB
United Kingdom
Prior art keywords
bed
particles
pellets
solution
pict
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
GB27183/48A
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.)
Morton Salt Co
Original Assignee
Morton Salt Co
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 Morton Salt Co filed Critical Morton Salt Co
Publication of GB670083A publication Critical patent/GB670083A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/026—Arrangements for charging or discharging the materials to be dried, e.g. discharging by reversing drum rotation, using spiral-type inserts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/028—Arrangements for the supply or exhaust of gaseous drying medium for direct heat transfer, e.g. perforated tubes, annular passages, burner arrangements, dust separation, combined direct and indirect heating

Abstract

<PICT:0670083/III/1> <PICT:0670083/III/2> <PICT:0670083/III/3> Solutions of solids are dried to give uniform pellets by introducing the solution directly into the interior of a heated, agitated bed of particles established in a cylinder rotating about its longitudinal axis which is disposed approximately horizontal; the operating conditions, and particularly the temperature of the bed and the depth at which the solution is introduced below the surface of the bed, being adjusted so that the peripheral particles are maintained in a dry state. The process is particularly applicable to the drying of an aqueous solution of calcium chloride, and also to solutions of magnesium chloride, sodium phosphate, and sodium silicate. A kiln 10 containing a bed 22 of calcium chloride pellets, is rotated, via a chain and sprockets, by motor 18. The bed is heated to 400 DEG F. by a series of burners 48 (see Group XI) supplied with a mixture of gas and air through conduit 46. The burners are disposed at an angle of about 20 DEG with the surface of the bed so that the flames do not actually contact it. A solution containing approximately 55 per cent by weight of calcium chloride is pumped through pipes 39 and 34 into main feed-pipe 26, and it is then distributed through a series of pipes 24 into the interior of the bed; the points of introduction below the surface of the bed being between 10 to 45 per cent of the depth of the bed. The kiln discharges the product (pellets having an average diameter between 1/4 inch and 3/4 inch and a density between 1.32 and 1.64 grm./ml. respectively) through cylinder 62 into chamber 64 and chute 67; while combustion gases are discharged through flue 68. Fresh bed particles may be supplied to the kiln from hopper 73 through chute 71. The process may be employed to convert material made up of irregular particles of mixed sizes into nearly uniform pellets by dissolving a portion only of the original material in a solvent, feeding the resulting solution to the drying apparatus p while at the same time also feeding the remaining portion of the material as solid particles.
GB27183/48A 1947-10-21 1948-10-19 Improvements in or relating to methods of and apparatus for effecting drying and products produced thereby Expired GB670083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US670083XA 1947-10-21 1947-10-21

Publications (1)

Publication Number Publication Date
GB670083A true GB670083A (en) 1952-04-16

Family

ID=22073134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27183/48A Expired GB670083A (en) 1947-10-21 1948-10-19 Improvements in or relating to methods of and apparatus for effecting drying and products produced thereby

Country Status (1)

Country Link
GB (1) GB670083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304296A (en) * 1995-08-21 1997-03-19 D & C Ltd Distillation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2304296A (en) * 1995-08-21 1997-03-19 D & C Ltd Distillation process
ES2121541A1 (en) * 1995-08-21 1998-11-16 D & C Ltd Distillation process

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