Scrap is now considered an indispensable and relevant raw material in steel metallurgy because of its environmental ( raw material recovery), economic (lower production costs) and quality advantages.<\/p>\n\n
The use of scrap, however, is subject to compliance with precise supply conditions, demanded and imposed by the legislature and the steel mills in order to obtain high-quality materials in compliance with legal standards regarding atmospheric emissions during the smelting phase, less smelting slag, and lower production costs with the use of \u201cclean\u201d and furnace-ready materials.<\/p>\n\n
The cost of scrap and whether it can be reused for steel production depend on the companies that provide for its collection, preparation, reclamation, sorting and delivery. Each of these operations involves the use of appropriate technologies, with which the collection and sorting centers must be equipped, to minimize handling costs and maximize the characteristics of the material for it to be accepted by the steel mills, with the possibility of recovering the nonferrous materials contained in the crop and possibly broken down.<\/p>\n\n
The scrap collected and usable for smelting processes can be summarized into two groups: <\/p>\n\n
1- non-hazardous materials because they are non-polluting (heavy demolition, production waste, molding trim, pantograph scrap, etc…) to be reduced dimensionally to make them palatable to the furnace.<\/p>\n\n
2- hazardous materials such as durable goods (automobiles and their parts, household appliances, electric motors, etc…), which are polluted by the presence of substances and metals that are not compatible with melting and therefore need to be sorted, dimensionally reduced and reclaimed.<\/p>\n\n
The use of machines (shears and balers) or grinding equipment (shredders\/mills) capable of reducing the size or crushing and sorting the scrap as is, placed in the collection and storage centers, is now indispensable to reduce the costs involved in the collection, delivery, storage and handling of scrap and to meet the supply conditions required and demanded by steel mills.<\/p>\n\n
With shear baler, in addition to improving and rationalizing transportation and storage costs, unpolluted scrap is reduced to sizes corresponding to the needs of steelmaking processes, which begins with proper and appropriate furnace loading with dimensionally suitable material.<\/p>\n\n
Balers machine allows a significant reduction in transportation costs and the proper delivery of material in the shape, size and density accepted by centers equipped with facilities suitable for shredding scrap.<\/p>\n\n
These centers equipped with hammer mills, magnetic systems, screens, and vacuum systems, crush the polluted scrap and reduce it to a size that can be separated:<\/p>\n\n
The MINIMILL module is designed to enhance collection scrap, light white (dishwashers, kitchen furniture, household appliances, etc…), decommissioned car parts and bodywork properly reclaimed, pre-crushed or sheared, by grinding and sorting.<\/p>\n\n
The input product is mixed and polluted scrap iron of heterogeneous materials; the output product is clean scrap iron, homogeneous in weight and size separated from the various constituent materials.<\/p>\n\n
The MINIMILL does not compete with crushing plants of large size and production, huge occupied space, huge investment and high installed power, but is aimed at customers who simply want to equip themselves with a crushing module to complement traditional pressing and shearing techniques.<\/p>\n\n
Eco-environmental reasons and requirements of steel mills penalize the supply of scrap collection, light and household appliances by not remunerating their collection, storage and transfer and dispersing the metals contained in the whole. The justified demand for scrap reclaimed from the presence of pollutants makes it necessary to have a grinding and sorting system that in terms of size, operating space, personnel employed, installed power, production and operating costs fits smoothly into the reality of a scrap yard by not disrupting its organization and guaranteeing a supply of high quality raw materials that meets the standards required by end users.<\/p>\n\n