OberA has just delivered a DUSTOMAT 16M dust collector to a European company, an industrial subcontractor to the aerospace industry specializing in the application of composite materials, to combat the risks associated with exposure to aluminum oxide dust.
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The dangers of aluminum oxide dust
The presence of aluminium oxide dust in the aeronautical industry can present health risks, particularly when these particles are inhaled, which can cause respiratory problems such as irritation of the respiratory tract, coughing, breathing difficulties and lung ailments. These particles can also cause skin irritation and allergies in some sensitive individuals.
From an environmental point of view, when aluminum oxide dust is released into the environment without adequate control, it can become airborne and settle on surrounding soils and vegetation. This can have a negative impact on the local ecosystem and lead to environmental pollution. Appropriate control measures are therefore essential.
There’s one final risk, which concerns production machinery and equipment. Indeed, theaccumulation of aluminum oxide dust on machine and equipment surfaces can lead to operating and performance problems. Dust particles can clog filters, air ducts and sensitive components such as electronic circuits, reducing equipment efficiency and leading to breakdowns.
How to reduce risk?
To minimize these risks, it is crucial to implement measures to control the extraction of aluminum oxide dust. Specialized industrial vacuum systems are designed to efficiently capture dust particles and direct them to appropriate filtration devices. These systems help maintain a clean and safe working environment, reducing risks to workers’ health, environmental impact and potential machine problems.
It is also important to make employees aware of the risks associated with aluminum oxide dust, and to provide them with adequate training in good safety and hygiene practices.
Aeronautical standards and regulations
In the aeronautics industry, specific standards and regulations apply to dust and air quality, to ensure safe and healthy working conditions for employees. Here is an overview of the main relevant standards and regulations:
- ISO 14644: This international standard does not deal specifically with aluminum oxide dust or other specific types of dust. However, it establishes criteria for classifying cleanrooms and controlled environments according to airborne particulate concentration. These criteria can be applied to assess and control the presence of dusts such as aluminum oxide in aerospace environments.
ISO 14644 provides air cleanliness classes ranging from ISO 1 to ISO 9, depending on the maximum number of particles of different sizes permitted per cubic meter of air. These classes define the permissible dust limits for each category. ISO class 1 corresponds to the cleanest class, with the strictest dust limits.
To specifically control aluminum oxide dust, we recommend the use of specialized industrial vacuum systems, such as the industrial dust collectors, capture arms and devices, vacuum tables, industrial vacuum cleaners, filters and industrial vacuum piping mentioned above. This equipment can be integrated into cleanrooms and work environments to effectively capture and eliminate aluminum oxide dust, in line with ISO 14644 requirements.
- European Directive 2004/37/EC, also known as the“CMR Directive” (Carcinogens, Mutagens and Reprotoxins), aims to protect workers from the risks associated withexposure to dangerous substances, including those that are carcinogenic, mutagenic or toxic to reproduction. Although this directive does not refer specifically to aluminum oxide, it is applicable to various hazardous substances used in the aeronautical industry, including dusts potentially generated by aluminum oxide.
Here are the main elements of European Directive 2004/37/EC relevant to aluminum oxide in the aerospace industry:
Classification of dangerous substances: The directive establishes criteria for the classification and labeling of dangerous substances, including substances that are carcinogenic, mutagenic or toxic to reproduction. Aluminum oxide, while considered a hazardous substance under certain conditions, can be classified according to its chemical properties and health effects.
Risk assessment and preventive measures : The directive requires employers to assess the risks associated with workers’ exposure to dangerous substances, including aluminum oxide dust. This assessment must take into account the routes of exposure (inhalation, skin contact, etc.) and the quantities of substances present in the working environment. Based on this assessment, appropriate preventive measures must be put in place to reduce or eliminate risks.
Occupational exposure limits : The directive sets occupational exposure limits (OELs) for certain hazardous substances. These PELs define the maximum permissible concentrations of substances in breathable air in the workplace. Although the directive does not specify specific OELs for aluminum oxide, employers must take account of scientific recommendations and available national or international limit values to ensure thatworkers’ exposure to aluminum oxide remains below hazardous levels.
Employers’ obligations : The directive requires employers to adopt appropriate protective measures to prevent or reduceworkers’ exposure to dangerous substances, including aluminum oxide. This can include technical measures, such as the use of industrial extraction systems to capture aluminum oxide dust, as well as the provision of suitable personal protective equipment (PPE) and the implementation of training and information measures for workers.
It should be stressed that regulations and specific limit values may vary from one country to another within the European Union. Employers must therefore comply with national regulations and implement the necessary measures.
Aluminium oxide dust collection methods
For effective management of aluminum oxide dust and other particles in the aerospace industry, there are various types of extraction systems recommended. These systems are designed to capture, filter and eliminate airborne particles, ensuring a cleaner, safer working environment. Here are some of the types of vacuum systems commonly used:
Industrial dust collectors: Industrial dust collectors, also known as dust collectors, are devices used to capture airborne particles. They use filters to trap particles and thus maintain a clean working environment. Different types of filter can be used, such as bag filters, cartridge filters or electrostatic filters, depending on the specific needs of the application.
Capture arms and devices: Capture arms and devices are flexible, adjustable pieces of equipment used to extract particles directly at source. They can be fitted with suction sensors for efficient capture of particles generated during grinding, sanding or cutting operations. These arms and pick-up devices enable the suction of aluminum oxide particles to be precisely targeted and controlled.
Vacuum tables : Vacuum tables are work surfaces equipped with an integrated vacuum system. They capture particles directly at the work surface, providing a clean working environment and reducing the risk of exposure to aluminum oxide. Suction tables can be used for a variety of applications, such as grinding, polishing or drilling.
Industrial vacuum cleaners: Industrial vacuum cleaners are designed to suck up large particles and debris in industrial work environments. They are equipped with specialized filters that effectively capture fine particles, including aluminum oxide. Industrial vacuum cleaners can be used to clean surfaces, equipment and work areas, helping to maintain a high level of cleanliness.
Industrial suction filters and piping: Industrial suction filters and piping are essential components of suction systems. Filters play a crucial role in capturing and retaining particles, while piping transports sucked-in particles to collectors or dust collectors. It’s important to use high-quality filters and correctly dimensioned piping to ensure optimum suction efficiency.
It is essential to choose the right type of extraction system according to the specific needs of the application and the characteristics of the aluminum oxide dust.
