Industrial Filters We make air work on your behalf

High performance with quality The designers in our Research & Development department are continually hard at work to improve quality parameters such as efficiency and extraction percentages, noise levels and strength. Our equipment thus makes a decisive contribution to the smooth running of production. Industrial filters from Venti Oelde prove their worth every day in numerous industrial sectors such as in mineral processing, metalworking & metal processing, in recycling as well as in the fibre and wood industries. Our filters clean unwanted dust from air and process gases. They are very versatile...

Robust industrial filters – single and double-row

Special separation systems are required for very fine dusts. The same is true for fibrous, sticky or moist dusts, or for dusts which are difficult to agglomerate. Processes with a high concentration of dust and material require filter systems which continue to work reliably when the filter surfaces are subject to maximum loading. Venti Oelde offers a singleor double-row filter, depending upon the amount of air, the amount of dust it carries and upon the space available. All filters can be used as suction and as pressure filters. The double-row designs We make the filters using sophisticated modular...

Round and cyclone filters exactly as required To separate large quantities of bulk materials, our robust and low-maintenance round filters with integrated cyclone separators are tried and tested. They are used as final separators for pneumatic conveying systems. Venti Oelde makes round and cyclone filters tailored to your requirements. Depending on the application, we use a variety of sheet thicknesses and materials such as stainless steel and very wearresistant steel. We offer these filters in a variety of types, amongst others, to fit on top of bunkers, with a filtered air dome or with a swivel...

One principle - many options Single-row filter Round cyclone filter © Dust-laden gas inlet © Tangential dust-laden gas inlet © Dust-laden gas baffle © Inlet duct © Filter bags © Filter bags @ Filter head © Compressed air tank © Filtered gas outlet © Walk-In tiltered air plenum © Trough worm conveyor © Filtered gas outlet

Round filter Double-row filter © Dust/filtered gas duct partition

A fully mature technology The right choice of filter media brings a decisive reduction in operating costs. We use only high-quality materials. The surface of the filters can be treated in different ways. We can thus make special adjustments according to dust to be separated and its characteristics. The cleaned air can frequently be fed back into the workrooms significantly reducing energy costs, especially during cold periods. For dusts in hot gases up to 250°C, we equip our filters with filter media suitable for high temperatures. Through careful design, we take account of extreme thermal

expansion. The filters are thermally insulated, as required, or are heated, if necessary. As standard, filter bags with a diameter of 160 mm are installed. We offer bag lengths varying up to 5.5 m. Maintenance is particularly easy when it comes to exchanging the filter bags. Our snap ring fixtures form a particularly air-tight seal. They press the filter bag firmly into the opening in the base plate, providing a good seal. The double bead also prevents assembly errors. The filter bags are exchanged via the vertical hatch in the area of the filter head. For protection from the weather when changing...

Automatic cleaning – convenient and efficient Depending on the product and the process, filter bags are cleaned either at regular intervals or on the basis of pressure difference, in part with pulse pressure control. A brief, powerful pulse of compressed air dislodges the caked dust from the filter bag and transports it to the hopper to be discharged. Behaviour of the filter bags during cleaning For each filter head, a compressed air reservoir is used to clean the individual rows of filter bags with a maximum cleaning pressure of 6 bar. Via electronic membrane valves, the reservoirs are controlled...

Cleaning with filter bag fixing Detail of filter bag fixing: Snap ring fixture Base plate Inlet nozzle Support cage Cleaning the intermediate spaces In addition to conventional jet cleaning, Venti Oelde offers another cleaning process which also keeps the spaces between the filter bags free. This is located in the unfiltered gas space and is primarily used to separate lighter, fibrous materials. Cleaning pulse Filter bag Cleaning pulse Intermediate space An additional empty chamber serves to calm the gas for large quantities of dust. Here, a large part of the dust will separate out.

Modern safety technology including accessories Dust fires and explosions occur on an almost daily basis. You should thus make use of our extensive experience in the field of safety technology. Venti Oelde cooperates with its customers to plan and integrate both active and passive safety measures. Speak to our engineers, who cooperate with renowned companies. Venti Oelde reduces the risk of fire and explosions. We offer equipment to suppress fires and explosions, such as a spark detection system with an automatic extinguisher. This detects and extinguishes sparks before they can reach the endangered...

For additional protection from explosions, we can decouple the systems from one another so as to deflect the pressure wave. Non-return valves in the unfiltered gas pipes protect other parts in the system and prevent the pressure wave from spreading through the workshops. The explosive force is directed and reduced by the use of adequately dimensioned pressure relief areas. Local monitoring equipment is of central importance in a safety concept – equipment such as • Infra-red detectors • Spark detectors • Pressure monitors • Rupture sensors • Fill-level sensors • Rotation sensors When faults occur,...