The auger sampling device is mounted on the positioning device which moves the unit to the chosen position. The sample will be taken in accordance with regulations from any place or depth of the dump truck bed.
Extraction of sample
The auger sampling device is mounted on the positioning device which moves the unit to the chosen position. The sample will be taken in accordance with regulations from any place or depth of the dump truck bed. The auger will extract the material from the truck while performing primary division. The needed part of the sample is collected into the sample hopper and the rest is dropped back to the truck. After the hopper is full, the sampler returns back to the home position to discharge the sample into the chute of the processing line for further sample processing.
From the chute the sample is transported to the crusher to be sized down to 10mm. The processing of the crushed sample continues onto the analysis conveyor and then the sampling conveyor to be further divided by the secondary sampling mechanism. The divided portion of the sample is stored into the containers at the carousel, the remaining part is dumped outside the processing line house.
The sample containers are equipped by closing lids which are only opened in case of filling by the sample. The rotary carousel can handle up to 16 containers for sample storage so that the distinct final samples can be stored selectively according to different suppliers, freighters or other criteria. The sampler can be also equipped by automatic packing machine with indexing for long-term sample storage.
For the best achievable sample representativeness the place of sample extraction from the truck bed is chosen automatically on random basis. Based on the batch size information the system will determine the number of samples taken from the trucks in order to collect suitable amount of final sample for the laboratory analysis.
The sampler is controlled from the operator cabin. The process of sample extraction and processing is
pre-programmed and fully automatic. Work of the operator is limited to start the automatic operation and supervision. Communication with the system is ensured by the rugged industrial-grade control panel where it is possible to monitor, change and setup all working parameters of the automatic system, e.g. the time of sample extraction, number of samples taken, statistics of samples taken for each supplier, status of individual devices etc. It is also possible to set the parameters of the sampling process and view the errors and alarm messages.
- Sample extraction from the full material depth
- Works with a range of coal qualities including wet or frozen material
- Short sample extraction cycle
- Integrates complete sample preparation procedure
- Environmental protection of the collected sample
- Simple operation and manipulation
- Automatic operation with one supervisor only
General technical data
|Sampled material*||Lignite, Hard coal, Other bulk materials|
|Granularity of sampled material*||0 – 250 mm|
|Final sample granularity||as per requirement, min. 0 – 3 mm|
|Quantity of final sample||as per regulations & customer requirement|
|Homogenization of final sample||as per regulations & customer requirement|
|No. of final sample containers*||Max. 16|
|Volume of final sample*||Max. 80 l|
|Overall dimensions||2,5 m x 6,1 m x 4,8 m (w x l x h)
|Boom length||typ. 7 m|
|Side distance||typ. 3 m|
|Auger diameter*||max. 500 mm|
|Auger speed||typ. 45 to 120 rpm|
|Power feed*||3 NPE 400 VAC/50Hz, TN - S,
3 PEN 400 VAC/50 Hz,
|Environmental protection||IP 65 (Ex zone 22)
|Working temperature||-40°C / +55°C|
|Ouputs||ModBus, ProfiBus, Ethernet|