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Opportunities to recycle insulation components

Because of their superior dielectric qualities and mechanical strength, ceramics and thermosets are popular in the electrical sector. These materials are great for making insulators and bushings as well as instrument transformers. An appropriate waste management policy must therefore ideally be available in relation to reutilization/recycling of scrapped components. Poland's legislation, for example is based on European Directives. According to them, waste management development should be focused on wastes that satisfy the following requirements.

* can also be used as raw material for a production line

* can completely or partially replace any fuel or raw material being used in a production line;

* can improve the quality and efficiency in a production process.

* can be used as a way to reduce the harmful effects of the process upon the environment

* can provide valuable materials

* A valuable product can be made after processing

Scrap Thermosets

In order to reduce the amount of waste materials in landfills and increase their volume, we need to encourage more innovative recycling methods. For thermoset wastes, the following options were explored in the past:

* For use as construction materials

* energy recovery;

* degradation

Many times, the use of cured epoxy-based waste in concrete or asphalt construction materials was considered and it seems to be a straightforward way of using them. This is because the quantities of these materials are small and the waste streams are distributed geographically, so there is very little economic benefit to such a solution. Epoxy scrap is widely used in electronic equipment, so many internal parts made of metals such as cores, windings, etc. cores, windings, etc.) They are embedded into the epoxy. This requires that the scrap be subject to some pre-treatment, such as the removal of metal parts followed by crushing. Due to the high energy density of thermosets (LHV 10-20 MJ/kg, depending on filler), energy recovery via combustion can be a great option. Although large amounts are produced by such treatment, they can also produce inorganic matter as filler. This must be dealt with in a cost-effective manner. If the process is properly controlled, then thermosets combustion can be considered to be relatively safe. The other option is to reduce plastics to lower molecular mass materials via photo-degradation or chemical degradation. Pyrolysis is one type of chemical degradation and the research presented here has focused on that form of thermoset scrap usage.

Scrap Ceramic Insulators

However, scrap porcelain insulators have not been extensively utilized. The insulators can also be used in road aggregate, outdoor tiling and ice melt. Sometimes, the manufacturer can re-use old porcelain insulators to make new insulators. They may have been stored at substations on site, sometimes without any disposal solution, or simply buried.

It is clear that the development of a better technology and implementation a cost-effective waste management strategy to manage large quantities of porcelain insularators has become a necessity. This was the motivation for investigating a new way to solve this problem.

Proposed Recycling Solution to Thermosets

A recycling method for thermoset-based products such as silicones and epoxies must consider the fact that insulation materials often contain valuable components made of metals, such as aluminum and copper. Any recycling option must yield high quality parts. Due to both economic and ecological aspects, pyrolysis has been chosen as a utilization method. Pyrolysis allows thermal degradation in an environment that is oxygen-free and produces a large number of end products. :

* Pyrolytic gases

* liquid products;

* solids (char, mineral fillers, metals).

Conclusions

Laboratory investigations have shown that there are patented technologies for recycling various types of insulation components. To commercialize these technologies, waste disposal companies must have appropriate policies for the efficient collection of these components. Local governments can also support these policies.

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