Practical notes for industrial fouling control, soot and ash build-up, acoustic cleaning systems, and online cleaning decisions.
High-resistivity ash can cause ESP back corona, lower collection and raise opacity. Learn how to diagnose it and which chemistry and design fixes work.
Read articleESP opacity spikes have several causes. Learn when hopper ash drives re-entrainment, where acoustic cleaning helps, and where it can make matters worse.
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24 articles
Why pulp mill lime kiln rings and chain buildup form, what they cost, and how blasting, water, rodding, air cannons and prevention compare.
Coal bunker hang-ups can starve mills and expose crews to engulfment. Learn the causes, no-entry options and narrow role of acoustic cleaning.
Separate sticky hot-end deposits from dry back-end fouling, then use the right cleaning methods to extend recovery boiler runs between wash outages.
Learn what high air preheater differential pressure reveals, how dry ash differs from cold-end ABS, and which cleaning method fits each deposit.
Diagnose SCR catalyst pluggage, dry ash masking, ammonium bisulphate fouling and poisoning from pressure drop, slip and inspection evidence.
How to match sootblowers and acoustic horns to SCR catalyst fouling: dry ash pluggage, ammonium bisulphate, poisoning, cost and limits.
How to estimate sonic horn count and place each unit around vessel geometry, obstructions, gas conditions, maintenance access and noise exposure.
Size sonic horn compressed air from firing CFM, dynamic pressure, receiver storage, pipe losses, filtration, drying and multi-horn sequencing.
Learn how vessel size, geometry and deposit behaviour shape sonic horn frequency selection, from audible horns to engineered infrasonic systems.
How to cost the return on an acoustic cleaning system: what to count, a documented example, a conservative payback model, and the honest limits of the business case.
Learn why fly ash bridges and rat-holes in silos, how vessel design and material condition cause it, and which flow aid fits each failure.
Air cannons, bin vibrators and sonic horns all promise to keep solids flowing, but they apply different energy to different materials. Here is how to match the flow aid to the dust and the failure mode.
Compare rappers and acoustic cleaners across wear, coverage and re-entrainment, including why horns must stay out of the ESP outlet field.
Extend filter bag life and reduce baghouse compressed-air use by tuning pulse demand, cleaning energy, gas velocity, media selection and hopper discharge.
Use pressure trends and inspection findings to separate bag blinding, cake bridging and hopper buildup, then match the corrective action to the fault.
Rising baghouse differential pressure is a symptom, not a diagnosis. Here are the real causes, why pulse-jet cleaning cannot fix some of them, and where the hopper is to blame.
Compare acoustic and ultrasonic cleaning in industry by medium, frequency, mechanism, scale and application, including the limits of each method.
A practical comparison of acoustic cleaning and sootblowing for online fouling control: how each removes deposits, what they cost to run, and how to match the method to the deposit and the zone.
First-pass fouling can force de-slagging outages in grate-fired incinerators. See which online methods fit, and where acoustic cleaning does not.
Learn how biomass boiler economiser fouling drives pressure drop and exit gas temperature upwards, and where online acoustic cleaning fits.
Understand slagging, fouling and sintering by boiler zone, temperature and deposit condition, then see where acoustic cleaning genuinely fits.
Potassium and chlorine make biomass and waste ash sticky. Here is why alkali chlorides foul superheaters and air heaters, and how to keep heat-transfer surfaces clean online.
Learn how compressed air, diaphragm motion and pressure waves release dry, friable deposits, and why hard deposits resist acoustic cleaning.
A practical guide to acoustic cleaning systems for boilers, baghouses, ESPs, SCR reactors, hoppers, silos and cement process equipment.