MikroPul - a Nederman company products

The FS series dust collector with horizontally installed flat bag filters is a compact and efficient filter system with intelligent air cleaning technology. This system is ideal for high dust loads of finer dust particles and high gas temperatures.

The addition of the adsorbent takes place on the pneumatic way. The hydrated lime is taken out of a silo through a slide gate, a rotary valve and a screw conveyor. In an intermediate vessel the adsorbent will be weighted and blown into the ductwork. The dosing quantity can be adjusted by a frequency drive so that the necessary amount of adsorbent can be adapted. Additive Dosing Systems can be placed under a Silo for smaller amounts of additive consumption. Additives can be Hydrated Lime (separation of HCL or HF), Activated Carbon (separation of dioxines) or a mixture of both (for small amount of dioxines).

For large applications, generally greater than 4,500 ft2 (440 m2) media area, pulse jet baghouse / collectors are provided in prewired sections sized to suit shipping limitations. Sub-assemblies can be prepared for bolting and/or welding on site. Common applications for sectional pulse jet dust collectors include kilns, boilers, dryers, mixers, coke pushing systems, sinter strand systems, furnaces, ladle casters, foundry sources, smelters, and many chemical applications. They can come in Top Access or Walk-in Access versions.

Nederman MikroPul`s round pulse jet dust collectors are for high vacuum or high pressure applications. These round pulse jet dust collectors?are well suited for high internal or external static pressures. They are often chosen for applications requiring explosion protection as well as those with tangential inlets (used to reduce bag loading). Typical applications include spray drying, separating, coal grinding, mixing, food manufacturing, rail car loading, and product receiving. Commonly filtered dusts include sander dust, fine lint, grain, and cellulose (center photo above shows two Type W baghouses with tangential inlets in cellulose dust application).

Fully assembled Mikro-Pulsaire™ pulse jet dust collectors are ideal for applications requiring filter media area generally between 151 - 8,246 ft² (14 m² - 766 m²). Some of the common applications of Mikro-Pulsaire® pulse jet dust collectors include size reduction machinery, spray dryers, separators, calciners, mixers, packaging machines, conveyors, chemical manufacturers, foundries, grinders, and many other industrial applications.

The Reverse Air Filter II (RAF II) uses a continuous cleaning system, avoiding the need for compressed air and unreliable valves. Each bag is cleaned once every 120 seconds using the efficient reversed flow of processed air. This complete and systematic cleaning dramatically reduces the pressure drop across the media as well as the load demands on the complete fan system. Bag life is extended because of the cleaning method. RAF uses two techniques to remove dust: cyclonic separation and media filtration, allowing larger particles to be removed easily before meeting the media.

The RAF-IS Reverse Air Filter is specifically designed for highly combustible dust and high temperature applications. The RAF-IS dust collector is ideally suited for a Coal (including PRB), Wood and Agro material filtration. It combines high performance, low energy use, and reliable and effective reverse-air cleaning in a ledge-less filter housing totally free of internal electrical components.

Pneumafil offers two types of self-cleaning pulse filter systems for gas turbine inlets: up-draft (`Pneuma-Pulse`) and cross flow.

The Pneumafil multi-stage static intake air systems use a combination of time proven filtration components to provide high quality gas turbine inlet air. Each stage has a separate and distinct function that is vital to the overall system performance. Selection of the various stages of the system depends on the environmental conditions that will be encountered. The first stage of inlet filtration will consist of either a weather louver section or a weather hood section. For environments subject to frequent periods of fog or mists, the weather hood option with integral droplet eliminator should be chosen.

Lowering the inlet temperature with evaporative cooling can increase system heat rate, while only causing a relatively small increase in inlet pressure drop. Proper monitoring of wet and dry bulb temperatures will allow most operators to recognize changes in cooler system performance. However, best operation and reliability can also be achieved with periodic inspections by using high-quality evaporative cooling components.