Can a hazardous-area site simply buy an explosion-proof model?
No. Confirm the hazardous zone, medium, temperature class, system arrangement and certificate scope, then have the specific configuration checked by technical staff.
Online Concentration, Density and Trace-Moisture Selection for Petrochemical, Chemical and Mining Processes
カテゴリ：Industry application · Petrochemical, chemical and mining
A condition-based guide for acids/alkalis, solvents, brine, amine service, trace moisture in oils and mineral slurries, covering IR100/MW100 matching, materials, protection and validation.
Split the requirement by medium and target
Petrochemical and chemical sites may need acid/alkali or solvent concentration, brine/amine concentration or trace moisture in oil; mining sites may need slurry or lime-milk concentration and density. Yifan Technology can first compare IR100 and MW100 from the target and medium, then screen materials, temperature, pressure, corrosion and hazardous-area conditions.
- Liquid refractive index/concentration: evaluate IR100 and confirm the application curve and prism-cleaning conditions
- Slurry concentration/density or moisture state: evaluate MW100 and confirm particles, bubbles and flow
- Trace moisture in oil: confirm target range, temperature compensation, reference method and sample representativeness
Materials, temperature/pressure and Ex boundaries
Strong acids, alkalis, solvents and solids-bearing media require an item-by-item check of wetted materials, seals, temperature/pressure limits and cleaning. A hazardous-area requirement cannot be satisfied by the word ‘explosion-proof’ alone: confirm the nameplate, zone/gas group, temperature class, associated equipment, installation system and certificate scope. Without project evidence, this page is only a preliminary assessment.
- Corrosive service: confirm compatibility of 316L, PTFE/PFA, Hastelloy or other proposed materials
- High temperature/pressure: confirm process boundary, thermal design, seal life and isolation
- Hazardous areas: confirm Ex level, associated apparatus, wiring and certificate scope
Pipe/tank installation and model validation
For pipe installation, confirm full-pipe condition, velocity, straight runs, bubbles and deposits; for tank insertion, confirm insertion depth, mixing, stratification and representative location. Use samples covering the main conditions with laboratory references to validate microwave and concentration models, and reassess after major composition changes.
- Record temperature, pressure, flow/pipe size, sampling location and online timestamp
- Review accuracy, repeatability, trend response and alarm behavior separately
- Document cleaning, calibration, maintenance and review responsibilities in acceptance records
よくある質問
Why does mineral-slurry concentration usually require site validation?
Particle composition, size, bubbles, stratification and velocity affect microwave response and sample representativeness. Site samples and a reliable reference are normally needed to validate the model and installation.