Page 385 - Chemical Process Equipment - Selection and Design

348 DISINTEGRATION, AGGLOMERATION, AND SIZE SEPARATION OF PARTICULATE SOLIDS
TABLE 12.7. Some Other Kinds of Disintegrators
(a) Ring Roller Mills to Make Down to 100 Mesh

Barytes, 8 to 10 tons/hr to 40 mesh Gannister, 10 to 12tons/hr to 14 mesh
Coal, 5 to 6 tons/hr to 40 mesh Iron borings, 8 to IOtons/hr to 20 mesh
Coke (96 hour) 3; to 4 tons/hr to 20 Limestone, 8 to 12 tons/hr to 20 mesh
mesh Limestone, 3 to 4 tons/hr to 85%-200 mesh
Fire clay, 8 to 11 tons/hr Manganese, 2 to 4 tons/hr to 80 mesh
Florida pebble, 7 t. to 85%-60 mesh Marble, 3 to 4tons/hr to 95%-100 mesh
Florida pebble, 3t. to 95%-I00 mesh Oyster shells, 4 to 5 tons/hr to 60 mesh
The No. 2 mill has 50 per cent larger capacities
The No. 0 capacity is approximately 35 per cent of the figures for No. 1; in this table.
Size of feed: 1" to 19.
AND SPEEDS FOR STURTEVANT RING ROLL MILLS
DIMENSIONS
Ring Rolls Ring Speed
Size Diam. x Face Diam. x Face (rpm) Horsepower
NO. 0 24" X 7" 1 4" X 7" 125 8 to 15
No. 1; 45" x 8" 16' x lo;" 64 45 to 50
No. 2 44" x 14" 1 8" X 1 4" 70 75

(Sturtevant Mill Co.).
(b) Attrition Mills for Tough Organic Materials

Capacity
Material Size-reduction details Unit* Ib./hr. Hp.
Alkali cellulose Shredding for xanthation B 4,860 5
Asbestos Fluffing and shredding C 1,500 50
Bagasse Shredding B 1,826 5
Bronze chips 1. in. to No. 100 sieve size A 50 10
Carnauba wax No. 4 sieve to 65% < No. 60 D 1,800 20
sieve
1.
Cast-iron borings 7 In. to No. 100 sieve A 100 10
Cast-iron turnings 5 in. to No. 100 sieve E 500 50
Cocoanut shells 2 x 2 x i in. to 5/100 sieve B 1,560 17
5/100 sieve to 43% <No. 200 D 337 20
sieve
Cork 2/20? sieve to 20/120 < No. D 145 15
200 sieve
Corn cobs 1 in. to No. 10 sieve F 1,500 150
Cotton seed oil Oil release from 10/200 sieve B 2,400 30
and solvent product
Mica 4 x 4 x 4 in. to 3/60 sieve B 2,800 6
8/60 to 75% < 60/200 sieve D 510 7.5
Oil-seed cakes I-; in. to No. 16 sieve F 15,000 100
(hydraulic)
Oil-seed residue 1 in. to No. 16 sieve size F 25,000 100
(screw press)
Oil-seed residue :in. to No. 16 sieve F 35,000 100
(solvent)
Rags Shredding for paper stock B 1,440 11
Ramie Shredding B 820 10
Sodium sulfate 35/200 sieve to 80/325 sieve B 11,880 10
Sulfite pulp sheet Fluffing for acetylation, etc. C 1,500 50
Wood flour 10/50 sieve to 35% < 100 sieve D 130 15
Wood rosin 4 in. max. to 45% < 100 sieve B 7,200 15
*A-8 in. single-runner mill
E-24 in. single-runner mill
C-36 in. single-runner mill
D-20 in. double-runner mill
E-24 in. double-runner mill
+36 in. double-runner mill
t 2/20, or smaller than No. 2 and larger than No. 20 sieve size.
(Sprout-Waldron Co.).