HOW SCRAP METAL IS RECYCLED
Everyone knows very well that minerals are not limitless and their reserves will someday run out. Natural resources used in the metallurgical industry are no exception.
This industry is among the key ones in the world market. Large-scale production requires considerable financial expenses. Because of this, metal waste recycling comes to the fore, as it is much more profitable than mining new raw materials. In addition, the use of recycled raw materials reduces the cost of the entire production process.
It should not b
e forgotten that it is not only economically profitable, but also largely affects the environmental aspect, thanks to the reduction of the loads of the use of minerals. Instead of junk my car scarborough, scrap it.
Stages of scrap metal recy
Now, let us take a closer look at the process of scrap metal recycling itself. It consists of several stages: sorting of metal, primary and secondary processing.
Sorting of scrap metal
In every city there is a huge number of specialized points of scrap metal reception. The metal arriving here is sorted and sent for further processing.
Metal is sorted into different categories, because different metals require different processing. First, ferrous and non-ferrous waste, pig iron and stainless steel are sorted.
In a second stage, each type of scrap is re-sorted to separate, for example, brass from bronze, which are virtually indistinguishable from one another in appearance but have different ductility characteristics. The more meticulous the first stage, the less labor will be needed for the second one.
After the metal has been sorted, recycling begins.
Scrap is brought to the recycling plant, where, if necessary, all non-metallic parts are separated from the metal – this could be the shell cladding or fixtures.
The next step is to determine the quality of the material and its composition, after which there is additional sorting, or separation. For this, there is a special machine with a magnetic mechanism that “pulls” ferrous metals. In order to separate non-ferrous metals, vortex current separators are used.
A special treatment is used for metal-containing components. For example, it is impossible to fully automate the process when processing electronic equipment. This necessitates manual dismantling.
Special processing methods are also used for batteries. They contain lead salts which are used later on. In order to separate them out, the batteries have to be dissolved in acid.
The scrap metal is then cut and cut up for recycling.
Recycling is the final stage. This takes place in special melting facilities and foundry constructions.
Modern facilities are fully automated. This gives the best results. The capacity of melting furnaces varies from 1 to 10 tons.
The main advantage of scrap metal recycling is the preservation of iron and coal. Reuse of metal reduces environmental problems and helps to save natural resources, as well as being economically beneficial for all participants in the recycling process.