Coal and coke inspection
Coal and coke inspection is a process of quality control of goods at different stages of logistic chain, which minimizes major trade risks related to the likelihood of cargo delivered or received not according to agreed specification, not being supplied in agreed quantity or incomplete set of accompanying documents agreed between parties for coal and coke export/import operations is issued and received.
CISS GROUP provides coal and coke inspection services to large metallurgical holdings, processing plants, scrap steel purveyors and international metal trading companies during procurement, storage, as well as loading / unloading at intermediate warehouses or in ports around the world.
The distinctiveness of coal and coke inspection is to ensure that all tests are conducted according to the methods included in the relevant standards, and confirm the compliance of the cargo with the requirements of regulatory documents, including commercial terms as well as the cargo impact on the safety of human and the environment.
Accredited inspectors and laboratory technicians from CISS GROUP carry out coal and coke inspection at any point of the supply chain.
The main stages of coal and coke inspection:
Incoming/outgoing coal and coke inspection.
It is carried out during the procurement, delivery of coal and coke to warehouses or to the port, or during removal from the warehouses of.
The CISS GROUP inspector will visually assess the condition of the premises for the suitability for cargo storage; inspect the cargo for possible losses (theft or spills from the wagons); check compliance with the class in terms of the size of pieces, the content of fines and mineral impurities (rocks), will control the weight of the incoming / unloaded cargo, carry out sampling.
Acceptance of cleanliness containers / holds of vessels before loading coal and coke.
This is a visual inspection of containers and empty holds for their cleanliness and suitability for coal and coke transportation. The inspector carefully examines their internal surfaces, checks the integrity and condition of locks, hinges and other fasteners on the container doors, rubber seals for container doors and hold covers.
Visual control of the loading process and sampling of coal and coke.
During loading, the inspector controls the loading of coal and coke, confirms the gross / net weight during re-weighing; in the case of loading coal and coke into the holds - the initial, intermediate and final check of the weight of the loaded cargo by the draft survey method, controls the fumigation process; conducts a visual assessment of the quality of the cargo, takes samples in accordance with sampling rules, forms composite samples. At the end of the loading, the inspector will seal the loaded containers or holds. He enters all the data into reports to which the client gets direct access. Note that the CISS GROUP loading inspection and sampling can be carried out around the clock on 24/7 basis.
Laboratory analyzes of coal and coke quality.
We check the quality of coal and coke exclusively in accredited laboratories in accordance with the requirements of agreed per contract international standards.
In laboratory conditions, tests of the chemical, physical and mechanical properties of solid minerals, as well as special tests for combustion are carried out.
The chemical properties of coal are characterized by the content of moisture, ash content, volatiles, bound carbon, and sulfur.
Moisture content is determined by direct and indirect methods. In the first case, in the process of testing, water is distilled out of the sample in a closed system, the evolved water vapor is captured and the weight (volume) of water in the sample is determined.
In the second case, indirect indicators are assessed, in particular, the loss in the weight of a sample of coal after drying it in a drying oven until a constant weight is achieved. This is monitored as the presence of moisture can change the properties of solid fuel depending on the content of it.
To calculate the ash content, the sample is burned (ashed), after which the ash residue is calcined at a temperature of 815 ± 10 ° C to constant weight and then the mass of the resulting ash is determined.
Sulfur analysis is performed to determine the level of sulfur oxide emissions during coal combustion.
The content of fixed carbon is determined by subtracting moisture, volatiles and ash (in percent) from the initial sample weight. The bonded carbon test allows you to determine how much coke can be obtained from coal.
Physical and mechanical properties of solid fuel are characterized by specific gravity, particle size distribution, float tests and wear (abrasion)
Special combustion tests include specific energy determination, ash melting test, crucible swelling index (free swelling index).
Photo and video report.
The inspector records each stage of the inspection with photos and videos. All such data contain the date and time of recorded stage of inspection. At the end of the coal and coke inspection, CISS GROUP provides a detailed photo report of all stages of control and inspection.
Based on the results of the coal and coke inspection the final certificate or reports are issued. The client can check the authenticity of the documents using a unique QR code, which is the "key" to the CISS GROUP website, where pdf versions of certificates are stored. Our certificates are protected with a digital cryptographic signature, which also guarantees their reliability and security.
Digitally signed certificates are often required by banks to verify the integrity of trading process when financing trade operations in the form of a letter of credit.Send request