Bulk solids sampling station SPC series

for solidsrotaryautomatic

Product overview
Today, an automatic sand testing system is a must for a modern sand preparation plant. SPC is a universal measuring system with selective sampling to control the operation of batch mixers. The system extracts representative small samples of flowing sand, prepares the sample in a cylindrical test container and performs automated tests to allow corrective dosing for the next batch.

SPC II — installation at a conveyor belt transfer point
For installation at a conveyor belt transfer point: the standard system SPC II is preferably installed at a conveyor belt transfer point between the mixer and the molding line. A miniature turntable continuously extracts small amounts of sand from the flowing sand stream and fills a cylindrical test container (Diameter 50 mm, height 100 mm). The sand sample is tested for compactability and optionally for compression or shear strength, moisture content and temperature. The number of test samples per batch can be adjusted. The system has only a small number of moving components, which ensures long life expectancy and low maintenance requirements.

SPC III — samples directly from the mixer
For installation on a mixer with sampling and preparation unit: the SPC II plus a sampling/preparation unit is mounted directly on the mixer. SPC III is suitable for mixers with a fixed mixing drum and requires an opening in the mixer drum wall of approximately 70 mm. The sand sample is prepared and then dropped into the cylindrical test container. The same measurements are available as for the standard system.

SPC IV — sampling from a belt conveyor
For installation at a conveyor belt with mechanical sampling device: this system consists of the standard system equipped with a mechanical device capable of extracting sand samples directly from the conveyor belt. The mechanical sampling device can be designed in a variety of ways to meet customer requirements. The system performs the same tests as the standard system.

Measured parameters

• Compactability
• Compression strength (optional)
• Shear strength (optional)
• Moisture content (optional)
• Temperature (optional)

Design & features

• Modular basic model allowing installation in various positions (belt transfer point, directly on mixer, conveyor sampling).
• Selective / continuous miniature turntable sampling (SPC II) or mechanical sampling devices (SPC IV) or integrated mixer sampling unit (SPC III).
• Small number of moving parts for long lifetime and low maintenance.
• Adjustable number of test samples per batch.
• Automated feedback capability to correct water and bentonite additions for subsequent batches based on measured values.

Technical characteristics / specifications

• Model / series: SPC
• Test container dimensions: diameter 50 mm, height 100 mm
• Required mixer drum opening for SPC III: approx. 70 mm
• Typical installation locations: conveyor belt transfer point (SPC II), directly on mixer (SPC III), conveyor sampling with mechanical device (SPC IV)
• Measured values: compactability; optional: compression/shear strength, moisture content, temperature
• Sampling method: miniature turntable continuous extraction or mechanical sampler or integrated mixer sampling/preparation unit
• Adjustable sampling frequency / number of samples per batch
• Construction: modular, few moving components, designed for low maintenance and long service life