TecProMin Sampling System Main Applications


SAMPLING SYSTEMS

TecProMin S.A.

  • Established in 1984 – Santiago, Chile.
  • Company specialized in the design engineering and fabrication of technologies and equipment used on mineral processing .
  • Installation all throughout South and central America, Spain, Indonesia and Australia, among others.
  • Staff of engineers and professionals with proven experience in mineral processing plants on mining and chemical industry.
  • In house Multy-Disciplinary Engineering Department.
  • Sampling Stations manufactured under Current Industry Standards.

SAMPLING SYSTEM MAIN APPLICATIONS

  • Metallurgical Balances
  • Optimization of existing operations
  • Process Control
  • Sales & Purchasing Products

MAIN MINERAL APPLICATIONS

  • Ore Sampling Systems
  • Slurry Sampling Systems
  • Concentrate Sampling Systems. (8-12% Moisture)
  • Solutions Sampling Systems

TYPES OF SAMPLE CUTTERS

  • Non Standard
    • Static
    • Deflectors
    • Flexible Hoses
    • Mobile Gates
    • Pendulum Path
    • Others
  • Standard
    • Cross Cutter
    • Rotary Cutter

ADDITIONAL INFORMATION

  • Standards References: ISO 11.794, 12.744, 12.743, CNAM007, etc.
  • Flow obstruction going to static cutter
  • Critical pit falls of static cutters
  • Segregation in the entry of a tertiary cutter by generation of bubbles from the secondary cutter
  • Sample output flow
  • Obstructed static cutter
  • Critical pit falls of static cutters
  • Delimitation error
  • Critical points of
  • Cross cutters
  • The totality of the flow is not taken
  • Critical points of
  • Cross cutters

WHAT IMPACT HAS A NON-STANDARD (INCORRECT GEOMETRY) SAMPLING SYSTEM?

  • Differences between the ore declared from mine, and what the plant receives
  • Differences between the calculated and the effective balance
  • Performance of equipment in grinding, grading, etc.
  • Do we know the reasons behind these differences?
  • Is the way we are taking the sample the correct one?
  • Is the sampling station adequate for the current process?

WHAT QUESTIONS SHOULD WE ASK OURSELVES AS PLANT OPERATORS

  • Simulation of particle size segregation and its impact on proper sampling station design
  • Example particle size distribution
  • Cross stream cut of a slurry weir and size distributions
  • Simulation of particle size segregation and its impact on proper sampling station design
  • Operation of a stationary sampler, partially blocked
  • Obstructed cutter
  • Simulation of particle size segregation and its impact on proper sampling station design
  • Simulation of particle size segregation and its impact on proper sampling station design
  • Comparation between the real weight distribution by size v/s actual mass taken by a partially obstructed stationary sampler
  • Simulation of particle size segregation and its impact on an undersized cross cutter
  • Actual Sample Volume = 287 lt
  • Proy. Sample Volume = 490 lt.
  • Simulation of particle size segregation and its impact on an undersized cross cutter
  • Comparation between the real weight distribution by size v/s actual mass taken by an undersized cross cutter
  • Simulation of particle size segregation and its impact on a properly designed cross cutter
  • Actual Sample Volume = 490 lt
  • Proy. Sample Volume = 490 lt.
  • Comparation between the real weight distribution by size v/s actual mass taken by a properly designed cross cutter
  • Simulation of particle size segregation and its impact on a properly designed cross cutter

GENERAL CONCLUSIONS OF THE PREVIOUS ANALYSIS

  • Static or stationary Cutters do not take the actual complete granulometric profile.
    This leads to differences up to 15% in the actual mass distribution taken from the stream.
  • Non Standard designed cross cutters lose a significant portion of the sample.
    This leads to differences of up to 12% (or more) in calculated mass balance vs. real fine in concentrates.
  • The only equipment that guarantees a representative sample, is a cross cutter and/or rotary cutter, well designed.
  • For a sampling system to work properly, it should also include a good design of: cross and rotatory equipment, pipelines, ducts, slurry boxes, chutes, handling of rejects, among others.
  • It is important that the client has proper equipment maintenance procedure.

MAIN FEATURES OF A SAMPLING SYSTEM

  • Cut the entire flow of a stream
  • Heavy Duty Design
  • Avoid loss of sample material
  • Avoid contamination of samples
  • Easy to maintain, clean and / or wash
  • Appropriate accesses
  • Control system suitable for all signals
  • HSEC Considerations
  • Proper materials handling
  • Representative
  • Auditable

COMPUTATIONAL FLUID DYNAMICS (CFD)

  • Discret Element Method (DEM)
  • Ore Sampling System
  • Ore Sampling System
  • Ore Sampling System
  • Slurry Sampling System

SLURRY SAMPLING SYSTEM

  • Concentrate Sampling System
  • Concentrate Sampling System