Screw Conveyors - 15501N0111

on [_____] mm inch diameter carbon steel shafts spaced at not more

than 3 meters 10 feet apart.

f.

Discharge Chute: Construct of not less than 10 mm 3/8 inch steel

plate and slope at not less than 60 degrees.

g.

Electric Motor and Drive: Totally enclosed, fan cooled, high

torque, [_____] volt, [_____] phase, 60 Hz not less than [_____] kW

hp as specified in paragraph entitled "Motors and Drives," in

this section, direct connected by means of flexible coupling to a

reduction gear unit having alloy steel helical or herringbone

gears and antifriction bearings enclosed in oiltight housing.

Provide an adjustable base for motor and reduction gear. Drive,

from output shaft of reduction gear to conveyor head shaft, shall

be by means of finished steel roller chain running over cut tooth

sprockets complete with steel plate chain guard. Roller chain,

sprockets and roller chain attachments shall conform to ASME B29.1M.

2.12.5.2

Screw Conveyors

Provide each screw conveyor dusttight and furnished complete, with trough,

screw, inlet and discharge spouts, discharge gates, bearings, bearing

hangers, dust cover, electric motor, reduction gear, [service platform,]

and supports. Each screw conveyor shall meet the following minimum design

and performance specifications when handling dry flyash of density not

greater than [_____] kg per cubic meter pounds per cubic foot:

CONVEYOR NO. 1

CONVEYOR NO. 2

Capacity

[_____] Mg/hr

Screw diameter

[_____] mm

Length

[_____] meters

Coupling diameter

[_____] mm

Motor horsepower

[_____] kW

Screw flight thickness

[_____] mm

Trough thickness

[_____] mm

Trough cover thickness

[_____] mm

Trough end plate thickness [_____] mm

[_____] mm

Maximum speed

[_____] rpm

CONVEYOR NO. 1

CONVEYOR NO. 2

Capacity

[_____] tons/hr

Screw diameter

[_____] inches

Length

[_____] feet

Coupling diameter

[_____] inches

SECTION 15501N

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