Progradex Sampling System

Features:

• 100% Recovery for sampling
• Multiple sample bites of both coarse and fine particulate taken randomly from all around and along the length of the interval providing vastly superior representivity.
• True 360 degree annular release of frilled ore over the sampling cutters.
• Approx 2.6m tall.
• Lightweight construction.
• Vastly larger apertures throughout.
• For wet and dry sampling with modes of operation to suit conditions.
• Blockage resistant internal surface treatments throughout.
• All access doors safety interlocked.
• Automatically samples on a continuous, regular sampling sequence as the interval does not need to be stored within the system prior to dumping.
• Continuous sampling provides a consistent, regular flow of ore to exit the system so operators can visibly monitor changing ground conditions as they occur.
• Percentage splits fully adjustable by the simple change of cutter blades.
• Multiple bag station carousel to vastly reduce operator input. Could remove as least one operator from the entire process.

Options:

• Any number of samples can be taken from an interval.
• Fully automatic self leveling capability.
• Moisture detection instrumentation to automatically change the operating mode of the system from dry mode to wet mode as conditions change without any operator input.
• Match the number of carousel stations to the number of intervals to be taken from a hold.
• Rig, Trailer, Skid or Truck mounting options.

Continuous Solids Sampler

The GR Sprenger Engineering, Inc. Continuous Solids Sampler was developed to collect a very small, yet representative sample from a stream of flowing solids. Its design provides for continuously extracting a 0.015% to 5.0% fraction of the process stream. The device is mounted as an integral section of the process line. This sampler is therefore ideal for Product Quality Assurance and regulatory compliance.

FEATURES

• Continuous Sample Collection.
• Entire process stream passes through the Sampler.
• Sample Fraction is 0.3 to 0.8 lb./ton.
• No moving parts.
• No timers or electronic controls required.
• Standard sizes from 4" to 12" for flows from 1 to 250 tons/hr.
• Custom models for higher flow or sampling rates are available.
• Operating Temperatures to 1000 degrees F.

BENEFITS

• All Product has an equal chance of being sampled.
• Minimal installation expense.
• No electronic controls installation or maintenance.
• Minimal operations expense.
• Small sample volume minimizes sample handling and storage.
• Provides basis for high Product Quality Assurance.
• Provides an inexpensive method of collecting Retained Samples of each batch or lot.
• Provides basis for validated Sampling and Analysis.

SERVICES

• Custom Design for specific Product Characteristics.
• Installation Coordination.
• Acceptance Testing.
• Quality Assurance Planning.
• Sampling and Analysis Planning.
• Field Service.

APPLICATIONS

1. Fly Ash
2. Granulars
3. Seed
4. Kiln Dust
5. Resin Beads
6. Feed
7. Powders
8. Slurries
9. Fertilizer
10. Pesticides

Rotating Sample Dividers

Two sizes available – (smaller size is featured within this web site)

- Bench Top RSD for samples less than 5kg
- Stand Alone RSD for samples less than 25kg

The smaller size is designed to be placed on a work bench but can be used in conjunction with the ROCKLABS Continuous Flow Ring Mill (CRM).

These RSD provides a representative split of any proportion from 2% - 50%. Generally the sample is split into two, sample and remainder.

Safety switches are built in to ensure operator’s safety.

Dimensions:
Depth 600mm
Width 420mm
Height 550mm
Weight: 80kg

Rotary Sample Collectors

An indexing carousel for the automatic collection and secure storage of samples being generated by a continuous sampling system.

Essa rotary sample collectors are essentially an electro-mechanically driven rotating carousel table carrying a number of removable sample receivers which are automatically indexed under the final discharge point of a continuous sampling system to collect and store the discharged sample/s. The inlet of all containers except that being immediately filled is kept sealed against moisture and dust loss or the ingress of foreign material. They are equally suitable for collecting free flowing solids or slurry. The sample collection containers are typically proprietary line polyethylene flasks which can be readily fitted to and removed from the carousel and can have screw lids fitted while being transported to the analytical laboratory. Stainless steel containers are an available option. The carousel is housed in a fabricated steel cabinet with easy access mesh frame doors which allow the unit to be viewed while operating. Safety switching is fitted to automatically disable the unit if any access door is opened, with the system automatically returning to its correct operating sequence when re-closed. The carousel can be indexed manually to bring any container to a convenient handling point.

Vezin Samplers

A circular path cross – stream sampler for primary or secondary sampling from a falling stream of slurry or free flowing solids

Essa Vezin sampler is a fully enclosed unit containing a rotating sample cutter that passes at constant speed through the falling stream of slurry or free flowing solids entering it. Correct cutter geometry design ensures radial cutter edges accurately cut a fixed portion of the stream. The portion of the stream sampled by the cutter is diverted to the customer’s sample collection system while the remainder passes through for continuous discharge.

One, two or four cutters can be fitted to ensure a representative sample is collected. The cutters and liners are readily replaceable in the field.

Essa Vezins are specifically designed to be minimum maintenance units.

Linear Cross Stream Samplers

State of the art technology for the primary and secondary sampling of falling streams from belt conveyors.

Essa are the Australian pioneers of a range of electric motor driven ball screw samplers that find particular application in collecting a representative samples from the material stream being discharged over the head pulley of a belt conveyor. These are setting new standards of performance and reliability that traditional chain, pneumatic and hydraulic drive samplers can find difficult to match.

The ball screw sampler maintains genuine uniform cutter speed through the falling stream; even when wear eventually occurs. The concept has been long term field proven in a broad range of medium to extra heavy applications.

The ball screw sampler is of simple yet rugged construction designed for maximum operational availability with low maintenance, in even the most arduous applications.

The electric motor driven ball screw mechanism produces a very rapid acceleration and deceleration time and results in a constant speed drive, which does not slow down when confronted with the falling stream be sampled. It’s combination of a powerful directly coupled electric motor and the huge mechanical advantage produced by the ball screw and nut assembly ensures that sampler performance conforms most closely to recommended sample theory.

The installation of the falling stream (linear) sampler at the discharge end of a belt conveyor is an internationally preferred method of sampling the material being carried by that belt conveyor. Various international standards have been established to assure the sampler performs in a manner which assures that the collected sample is truly representative. One of the most relevant requirements of these standards is the sampling cutter must travel back and forth through the falling stream at a uniform rate. Sampling equipment manufacturers have traditionally used chain, pneumatic or hydraulic drives to satisfy this requirement. Essa have been Australian pioneers in the use of this precision ground (square) screw thread and ball nut concept to drive falling stream samplers. This is a truly positive drive system, which by its very nature is obliged to travel through the falling stream at a uniform rate. It has none of the potential “elasticity” of pneumatics or hydraulics and will continue to operate at a uniform rate even when the mechanism eventually begins to wear. Essa’s simple, yet rugged, application of the concept assures maximum reliability and availability of the system.

Further specifications relating to the ball screw samplers can be obtained by downloading the Ball Screw Sampler Data Sheet below.

Essa also offers a full range of complementary sampling and sample size reduction equipment and a design through to commissioning service for complete sampling stations and systems.