- Home
- Companies
- Aerzener Maschinenfabrik GmbH
- Applications
- Water and wastewater treatment ...
Water and wastewater treatment solutions for pneumatic conveyance sector - Manufacturing, Other
The pneumatic transport of bulk materials should be fast, gentle and with minimal energy expenditure. A clear task for real specialist. Oil-free roots blowers, screw blowers and screw compressors from AERZEN can handle any kind of transport need. With unparalleled efficiency and reliability. Versatile, Efficient and Reliable: Our products Delta Blower, Delta Screw and Delta Hybrid are powerful universal geniuses: The smallest units can be mounted on silo vehicles. The largest machines are used in pumping stations. They are used to unload freighters and have a capacity of up to 1,000 tons an hour. You would like a personal consultation?
Pneumatic Conveyance of powder, bulk and solids material, quickly, gently, and with minimal energy expenditure – a job for real specialists.
Oil-free roots blowers, screw blowers and screw compressors from AERZEN can handle any kind of transport need. With unparalleled efficiency and reliability.
Safety
We guarantee 100% product purity, safety and reliability.
Discharge silencers free of absorption material, ATEX compliant machines and Oil free class 0
The absolutely oil-free and absorption-free compressed-air technology from AERZEN guarantees you 100% product purity in all pneumatic conveying processes of sensitive bulk material. We solve demanding production requirements, e.g. in the food industry, in the pharmaceutical industry, or in chemical and petrochemical processes thanks to innovative and ATEX-certified technology.
Thanks to certified oil free class 0
100% product purity
In many industries, the pureness of the compressed air is decisive since it significantly influences the quality of the processes for the production of high-quality products in the food industry, pharmaceutical and cosmetics industry, in parts of the automotive industry, the paper and textile industry, the medical technology but also in sensitive chemical or petrochemical processes, to name only a few. Always when compressed air can come in contact with the product, as this is the case with pneumatic conveyance for example, it is important to guarantee that the compressed air is free of oil according to ISO 8573-1, class 0. Since a contamination of the product with oil can have bad consequences, as for example the destruction of complete production batches.
Aerzener Maschinenfabrik GmbH has set a new safety standard.
In cooperation with Tüv Rheinland LGA Products GmbH, this safety standard has been defined according to the following guidelines and standards:
- ISO 8573-1: 2010 Part 1: Contaminants and purity class
- ISO 8573-2: 2007 Part 2: Test methods for aerosol oil content
- ISO 8573-5: 2001 Part 5: Test methods for oil vapour and organic solvent content.
100 % Flexibility
Increased energy efficiency and lifetime extension of the compressed-air system and compliance with the required sound pressure level thanks to new and patented silencers. In the research and development centre belonging to the factory, AERZEN developed a completely new silencer technology and could successfully patent this (European Patent No. 1857682). In future, AERZEN will use socalled reactive silencers to reduce the pipe noise for the series Delta Blower (positive displacement blower), Delta Hybrid (rotary lobe compressor) and Delta Screw (screw compressor).
Safe, efficient and cost-saving. Compressor and blower packages made by AERZEN have always been used in highly critical areas. The know how and the experience which we have built over decades in almost any application range can particularly be found in processes covered by the ATEX guideline.
- 100% Safety with ATEX applications
- Absorption material-free pulsation discharge silencers as spark arrester
- Explosion protection in the pneumatic bulk material conveyance
- 100% product purity and safety thanks to certified technology
- AERZEN stands for consequent further development, because your safety and your product is our utmost concern
Absorption material-free pulsation discharge silencers as spark arrester
For example, an aspect that is seldom considered in pneumatics, means, that according to the risk analysis the blowers and compressors can produce sparks which then are blown into the conveying pipe (pressure conveying) and there they can lead to an ignition of a dust-air-mixture. Here, the AERZEN ATEX concept already provides a TÜV certified solution. A spark arrester which is integrated into the base support or the discharge side of the silencer avoids sparking over in the hazardous zone in a case of emergency. The installation of spark arresters on site can completely be omitted - a decisive advantage for the customer. Therefore, investment costs are not necessary. This saves sustainably energy costs, as pressure losses - due to downstream spark arresters - can be avoided.
ATEX (French: “ATmosphère EX- plosible”) is the name of a Europe- an directive for devices and protection systems used in potentially explosive atmospheres. Since 18th April 2014, ATEX product directive RL 2014/34/EU has been in effect. As a legal provision, it serves to protect persons working in potentially explosive atmospheres, or who might be affected by explosions. In addition, ATEX directive 1999/92/EG specifies, that with- in a risk assessment, plant operators have to prepare an explosion protection document and have to assign areas with explosive atmospheres in zones.
AERZEN offers solutions in its wide-ranging product portfolio for nearly all ATEX zones. These are based on experience acquired over several decades, as compressor and blower packaged units made by AERZEN have been used for a long time in extremely critical working atmospheres. As sound advice is the key in ATEX-compliant plant design, before any action is taken, engineers from AERZEN discuss all the project details with the customer. They collect the ATEX-relevant information concerning type of gas and dust, operational environment, explosion group, temperature class (concerning gases) or ignition temperature (concerning dusts), ambient temperature and frequency converter operation. Once all these details have been collected, and evaluated, the plant can be assigned to one of three categories. According to ATEX product directive RL 2014/34/EU, distinction is made between normal, high and very high safety requirements.
To provide customers with exactly the product they require, the ATEX specialists from AERZEN develop a tailored unit con- cept, including all the required documentation, and the corresponding accessories, according to ATEX product directive RL 2014/34/EU. Before they are executed, particular customer requests are checked by AERZEN engineers to ensure their conformity with the ATEX-directive. The customer is thus provided with an ATEX compliant, and of course TÜV-approved, comprehensive solution from one source, no matter whether the packaged unit is used in overpressure or negative pressure range. Depending on the product groups and the zone type, AERZEN interprets the technologies in different ways:
- zone separation filter
- special documentation
- use of special materials for medium-contacting parts
- ex-instrumentation
- vibration monitoring
- spark arrester
- special motors according to the corresponding zone
AERZEN products are used, for example, in environmental engineering for compression of biogas and natural gas, as well as for gas feed-in, in the chemical and pharmaceutical industry for conveying gas and degassing, in refineries, as well as in power plant technology. Furthermore, they are used in the foodstuff and plastics industries for the loading and unloading of silos and for pneumatic conveyance.
During pneumatic conveyance of combustible or explosive bulk material, ignitable mixtures may develop in the plant, so its components have to be declared for different zones, in order for corresponding protective measures to be taken. AERZEN offers all unit components in appropriate ATEX design. Furthermore, with the TÜV- approved and in-house developed zone separation filter, and the integrated spark arrester, cost- effective alternatives to the conventional protective components are available. So, as far as legal explosion protection is concerned, AERZEN’s customers are always on the safe side.