Case
History: Drilling Mud Slurry Sampler [Sprenger Continuous
Solids Sampler]
Problem:
High Abrasion, Slurry Sampling
BHP Copper
operates a mining operation in southern Arizona. A drilling rig is used
to collect samples which are used to direct mining operations and planning.
The drilling mud must be sampled for every 20 feet of sample boring.
The drilling mud has a wide particle size range and is abrasive.
Solution:
A
Sprenger Continuous Solids Sampler, designed for slurry service, with
AR 500 steel wear components and sample collection chutes, was installed
in the drilling mud slurry line. All of the material flowing from the
drill rig passes through the sampler. The sampler inlet is 200 gallons
per minute of drilling mud. A continuous 0. 13% representative cut of
the slurry (5.2 gallons every 20 minutes) is delivered to the sample
receiver. This sampler was delivered to the mine in 1998 and continues
to operate well.
Case
History:
Molybdenum Slurry Sampler
Problem:
High Abrasion, Ball Mill Slurry Sampling
Climax Molybdenum Company operates a large-scale molybdenum mill near Parshall, Colorado.
Molybdenum ore is received via rail from Empire, CO and milled in ball mills. The ball mill
product is a slurry of finely ground ore which is then purified in down-stream processing
operations. Collecting a representative sample of mill slurry has been a continuing problem
due to the large flow volume (1,500 gpm), the abrasive nature of the slurry and presence of
small amounts of trash material.
Solution:
A Sprenger Continuous Solids Sampler, specially designed for slurry service, with ceramic wear
components and sample collection probes, was installed in the mill product slurry line. All of
the material flowing from the mill passes through the sampler. The sampler takes a continuous
30 gpm, representative cut of the slurry which is then delivered to a secondary splitting
device. This sampler was delivered to the mill in late 1997 and continues to operate well.
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