The industrial sampler with sample material processing is a fully automatic device for regular sampling and processing of the sample according to sampling standards for solid fuels. The device takes coal and other materials from conveyor belts and transfer points without the need of conveyor belt stoppage not even for high speeds conveyors. Automatic samplers are certified to operate in the full range of particle sizes from dust to directzly excavated material, ensuring maximum sample representativeness and high efficiency through high reliability and minimum sampling time.
We take care of the complete installation of the equipment in your facility.
We provide comprehensive customer support, including service.
We always deliver our technology to you on a turnkey basis.
Our technology allows taking of the samples from running belt during normal operation
Example of automatic belt sampling with automatic processing line, crusher and divider inside container-type building. The sampling system includes individual sample containers for the fuel laboratory, a return conveyor to return the remaining material to the main conveyor after the sampling process, an online coal quality analyser installed on the analysis conveyor to provide immediate information of the quality and quantity of the coal, and the control system and software for the automatic sampler.
Sampling of material from the transfer point between two conveyors
Sampling of material from an inclined belt conveyor using a rotary hammer
Sampling of the material from a standard belt conveyor using a rotary hammer
Alternative sampling of materials from two standard conveyors by a rotary hammer system to a common sample processing line.
Alternative sampling of material from two inclined conveyors using a rotary hammer into a common sample processing line
Sampling of the material from transfer point, outdoor version
Sampling of material from two belt conveyors to a common line for sample processing, outdoor design
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The rotary hammer sample cutter is attached to the belt conveyor frame. According to the requirements of the relevant standards, the rotary hammer cuts the full cross-section of the material stream on the main conveyor at constant speed. In each sampling cycle, one sample increment is taken, delivered to the belt feeder and evenly dosed for coarse crushing to the 10 mm granularity. The sample is further divided using the programmable divider and either stored to the sample container or further processed by fine crushing.
The unused material is returned to the main conveyor. If required by the application, the sample processing line can be equipped by on-line analyzer, collection of particle size
distribution sample, homogenization buffer for gross sample or sample splitter. An automatic carousel can be used to collect samples separately into multiple containers.
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The sampler can be equipped by the unit for rapid sample analysis which is installed on the feeding or reject conveyor. The unit evaluates ash content, moisture and calorific value.
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The automatic sampler is thoroughly secured to prevent damages. In case that the sample cutter does not reach its home position within required time, the main conveyor is stopped to prevent conveyor overload or sampler destruction.
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Primary sample increments are collected on timer basis. According to the information of batch size the control system chooses the optimal frequency of primary samples to achieve required amount of final sample for laboratory analysis. The detectors ensure that the sample timers are running only in case that the main conveyor is in operation and there is sufficient material layer for sampling.
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Depending on the method of further processing, the material is taken either into a collecting vessel to perform the granulometry test, or proceeds through a system of hammer mills where it is crushed to a grain size of 0-3 mm. As per individual application requirements the samples are stored into containers after division. Before storing into containers the samples can be mixed and divided at the homogenization splitter, where equal parts of the same sample are stored into several containers. To store different samples separately into different containers there can be utilized the rotating carousel for sample separation according to further criteria. If the sampler is equipped for particle size distribution sampling, the primary samples taken from the main conveyor can be redirected immediately to the special container without further processing.
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The automatic sampler is powered from the control cabinet with power and control circuits. The cabinet is usually installed close to the sampler line. The cabinet door carries the control buttons with signaling and rugged easy-to-use industrial control screen. There it is possible to set the sampling parameters, timing of the sample collection, startup of individual devices, view alarms and faults, watch the operational status of each device, number of executed sample increments, sample increment timers, time until next increment, etc.
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The control system of the automatic sampler can be integrated with superior SCADA system or mining quality control system as per customer requirement (ModBus, ProfiBus, Ethernet, etc.).
Would you be interested in incorporating an automatic coal, fuel and bulk material sampler into your operation? Send us an e-mail or give us a call. We will prepare a tailor-made offer for you. We are a leading Czech manufacturer and exporter of automatic samplers and other technologies.
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