Acoustic Cleaners For Cement Plants
Cement & Gypsum Applications

Blending Silos: Aeration within the various types of silos can cause ratholing, uneven blending and material bridging. Acoustic cleaners can ensure that material flows smoothly on the "first in - first out" principle to ensure consistent blend quality

Bulk Tankers: Acoustic cleaners can bring two distinct advantages to these units. Firstly they can dramatically decrease load time and enable additional payload of up to 10%. Secondly, on discharge of the unit, an acoustic cleaner can ensure that material does not adhere to the tanker walls and facilitates complete evacuation.

Calciners: Acoustic cleaners can aid hot air flow through the range of modern calciners and prevent material bridging in both the unit itself and ductwork.

Ductwork: How often does material build up in ductwork significantly affect the general plant efficiency? Ductwork is not easy to manually clean and so major downtime occurs. Acoustic cleaners will eliminate blockages and prevent particulate build up.

Dynamic Cyclones: These can be prone to impeller blockage and damage which in turn can lead to cyclone blockages and prevent efficient up-stream equipment operation. Acoustic cleaners maintain correct airflow and efficient solids separation by eliminating particulate build up.

Filters: Acoustic cleaners are employed in all types of filters and applications. They reduce differential pressure, extend bag life, maintain correct airflow and prevent hopper pluggage.

Grate Coolers: Blockages here are a real challenge, whether with a fixed or dynamic inlet section. A single acoustic cleaner can replace a multi air cannon installation. Unlike air cannons, an acoustic cleaner actually prevents the occurrence of build-ups and continually aids thick bed material flow. In addition, it eliminates the need for large volume of air produced by air cannons and therefore does not disturb the operation of the kiln

ID Fans: Blockages and material build up which cause fan imbalance leading to costly kiln shutdown can be eliminated by employing acoustic cleaners. Both the impeller and internal fan casing are continually cleared, thus preventing particulate build up from occurring

Kiln Inlet: Acoustic cleaners prevent particulate build up and these benefits could be applied at the kiln inlet to help prevent nose ring formation

Mechanical Pre Collectors: Particulate build up in these units significantly reduces their efficiency and can place additional dust loading onto the electrostatic precipitator or filter. Acoustic cleaners can prevent particulate build up around the impellers and between tubes, thus ensuring that they always operate to maximum efficiency.

Mills: Acoustic cleaners can maintain material flow and prevent blockages in the pre-grind silos. They can also be highly effective in preventing material build up in the downstream separators and fans. The positive end result is to provide even, consistent material flow, which results in consistent quality.

Planetary Coolers: Those kiln systems, which still retain this type of cooler, would benefit from the installation of acoustic cleaners to prevent bridging and ensure complete evacuation.

Precipitators: Acoustic cleaners can provide many benefits for the effective cleaning of turning vanes, distribution plates, collecting plates and electrode wires. Acoustic cleaners have been employed to either replace or assist mechanical rapping systems and provide superior cleaning through the precipitator. In addition they prevent particulate build up in the underhoppers, which can result in opacity spiking. Other advantages include, cleaning of walls, roof and steelwork with no mechanical stress or damage to the vessel or equipment

Pre Heaters: Acoustic cleaners can be employed within the towers, gas risers, cyclones and fans to provide highly effective, remote and automatic cleaning by preventing the material build up from occurring in the first place

Ship Cargo Holds: Here acoustic cleaners are being used to eliminate current unsatisfactory unloading/cleaning methods such as large vibrator pads or dangerous manual cleaning. The acoustic cleaners can either be lowered down into the hold or attached to the ship unloader to ensure that material hang-ups are eliminated. Also on loading their cargo holds, acoustic cleaners can be employed to de-aerate the material thus ensuring maximum payload.

Silos and Hoppers: Blocked silos and hoppers cause major plant shutdowns and loss of valuable bulk storage space. Acoustic cleaners eliminate both material bridging and ratholing and ensure that the entire capacity of the silo can be utilised. For these applications the acoustic cleaner is usually top mounted. In addition an acoustic cleaner can be mounted at the discharge end of a silo cone to prevent blockage and ensure maximum, continuous material flow.

Static Cyclones: Acoustic cleaners prevent blockages and prevent material build up both within the cyclone and the associated ductwork, thus ensuring constant air flow and maximum particulate removal.

These are some of the process areas where Primasonics® acoustic cleaners have successfully been employed within the Cement Industry. The list is not exhaustive, indeed should any facility incorporate a power generation plant then remember that Primasonics® acoustic cleaners have also been successfully employed in boilers, superheaters, economizers and air heaters.