Hengke Instruments produces various coal testing equipment, mainly including: calorimeter series, sulfur tester series, moisture tester series, hydrogen tester, colloid layer tester, ash melting point tester, temperature control device series, muffler Furnace, Bonding Index Tester, Blast Drying Oven, Mikum Drum Machine, Standard Vibrating Screen Machine, Hammer Crusher, Jaw Crusher, Sealed Test Sample Crusher, Coal Burning Point Tester, Aoya Expansion tester, crushing and shrinking combined sample making machine, coal transport sampling machine, coal sampling machine and other coal mining and sample preparation laboratory analysis equipment.
The signs of various indicators or operating conditions detected by various coal testing equipment are expressed as: internal moisture; external moisture, total sulfur content, St organic sulfur So; ferric sulfur salt sulfur Sp; sulfate sulfur Ss; cartridge calorific value Qb; high The calorific value; Qgr; the low calorific value Qnet coal quality analysis and test indicators of different benchmarks are shown in Table 30-10.
Examples of symbolic representation: analysis of basic moisture Mad received basic moisture Mar <analysis-based volatiles Vad dry ash-free volatiles Vdaf analysis-based total sulfur St, ad Table 30-10 coal quality analysis test indicators different benchmarks
Analysis base (air-dry base) dry base (anhydrous base) received base dry ash-free organic base (anhydrous and mineral-free base) symbolic representation
Dry base total sulfur content St, d
Cartridge calorific value Qb
High calorific value Qgr
Low calorific value Qnet
Received base high calorific value Qgr, ar
Received base low calorific value Qnet, ar
Analysis of the base high calorific value Qgr, ad
Analysis base low calorific value Qnet, ad
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