Page 99 - Shale Shakers Drilling Fluid Systems

82 SHALE SHAKERS AND DRILLING FLUID SYSTEMS

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Brandt Mud Agitators

Brandt mud agitators, available in seven models from 2
through 25 horsepower, are quiet, smooth and
vibration-free. The simplicity and strength of their
single-reduction worm gear drive provide long, reliable
service.
Worm gear drives are 50% more resistant to shock
and vibration than gear reductions utilizing twice as
many helical and bevel gears. Also, worm gear drives
wear in rather than wear out. Steady operation con-
tinues to form the tooth rather than destroy the tooth
form.
Brandt impeller blades are canted at 60° to promote
axial as welt as radial flow. This induces a bottom-to-
top movement and results in a more homogeneous
mixture.

; Selection of Agitator Size

Select the right size agitator by first locating the tank from the impeller diameter to the curve showing the
width on the right side of the graph. A recommended heaviest anticipated mud weight. Now locate the
impeller diameter is shown across on the left side. This nearest vertical line to the right of this point and note
impeller size is correlated to the mud weight and the the required horsepower at the top of the graph,
required horsepower. Simply follow a horizontal tine

EXAMPLE: Agitators are required for a
10-foot-wide tank, 30 feet long, to
maintain weighting materials m sus-
pension for a 12 Sbs/gal mud.
Find the tank width (10 ft) and the
recommended corresponding impeller
diameter (36 in) on the graph. Follow a
horizontal line from the impeller diame-
ter to the curve ol the given mud weigh?
{12 Ib&'gal rnud—use the curve on the
next higher mud weight). From the in-
tersection of the mud weight curve and
the impeller dtarnetef, locate the
nearest vertical line to the right and
note the horsepower at the top of the
graph.
This particular application will require
a 7,5-hp size Brandt Agitator for each
10 feet o? tank length—a total of three
?.S-hp agitators.