AAF International Type N RotoClone - Manual (Page 2)

2
Entrained moisture in the cleaned air is removed by specially
designed, wide-space chevron eliminators made in removable
sections for Size 1
1 ⁄
2
through 6 and curved entrainment baffles for
Sizes 8 and larger.
The water in the reservoir is continually reused, and since the water
curtain is produced by the air flow, no pumps or nozzles are required.
The water level is maintained by the overflow weir in the control box
as long as a small amount of fresh water is supplied through the
make-up water connection or by electrical controls that automatically
add water, as required, to compensate for evaporation and water lost
as the collected dust is removed from the unit.
Sludge Ejector
The sludge hopper is designed with steep sides to prevent material
buildup on the hopper walls. The ejector is constructed for heavy duty
service and long life. The chains and sprockets are constructed of
wear resistant materials and the chain speed is slow enough to permit
sufficient dewatering of sludge.
There are two types of ejector designs. Sizes 1 1 ⁄
2
thru 12 have the
“W” ejector system. Sizes 16 thru 48 use the “L” ejector system.
Figures 9 and 10 show the designs and designate the appropriate
replacement parts by part number.
The sludge ejector is operated continuously for most applications.
It is driven by a flange-mounted, fractional horsepower motor.
An optional accessory that can be obtained is an automatic sludge
ejector timer control. This timer allows the sludge ejector to operate
for two hours after the RotoClone shuts down. Thus, materials
with slow settling rates can be removed from the unit after
RotoClone operation.
Size
1 1 ⁄
2
2 1 ⁄
2
4
6
8
12
16
20
24
28
32
36
40
44
48
Maximum
Operating
Wt. Lbs.
(Note 1)
6,300
6,400
9,500
11,400
13,200
16,500
28,500
33,600
40,300
46,000
51,100
56,300
64,500
70,200
76,100
Normal
Operating
Wt. Lbs.
(Note 2)
4,800
4,900
7,100
8,700
10,500
13,200
21,600
25,300
30,500
34,800
38,500
42,400
49,200
53,500
58,000
Water
Capacity
Gallons
300
300
470
540
530
650
1,370
1,650
1,950
2,220
2,500
2,775
3,050
3,330
3,610
RotoClone
Only
2,000
2,000
2,700
3,600
5,300
6,500
8,000
9,400
11,000
12,400
13,700
14,800
19,300
21,300
23,400
Exhauster
Only
300
400
500
600
800
1,300
2,200
2,200
3,300
4,000
4,000
4,500
4,500
4,500
4,500
Installation Instructions
Read the following instructions completely and carefully.
A. Foundations
Foundations must be true, level and rigid enough to prevent vibration
and to support the weight of the RotoClone with its maximum dust
and water load given below.
Erecting Weights
B. RotoClone Erection
1. Set RotoClone on foundation and adjust base until unit is level.
Place spirit level on the leveling strips welded on two or more sides
of the hopper. Use care in leveling both directions as the operation
of the RotoClone depends on the accuracy of the leveling function.
Note: This level can be checked by filling the unit with water until the level reaches
the entering edge (Figure 1) of the impeller. This entering edge should be level with
the water along its entire length with maximum variation of
1 ⁄
8
" plus or minus. (See
Operating Instructions, Item A-2).
2. For Sizes 1 1 ⁄
2
thru 6, chevron mist eliminator bundles are shipped
loose for installation at the jobsite. Refer to drawing 1400415 for
Installation Instructions. For Sizes 8 thru 48, the entrainment baffles
are fixed in place as an integral part of the unit and it is not
necessary to make any adjustments (Figure 3).
Table 1—RotoClone weights
Note 1: Weight based on maximum sludge capacity with a sludge
weight of 100 pounds per cubic foot.
Note 2: Weight based on weight of water, 62.4 pounds per
cubic foot.
Clean Air
Side
Intermediate
Sheet
Dirty Air Side
Entering
Edge
Figure 1. Cross section of Type N RotoClone ® Impeller.