Recycling of copper scrap is not only environmentally friendly and an example of worthy circular economy but is a good opportunity of prosperous business.
Continuus-Properzi introduced an important evolution of the old model of Reverberatory Furnaces, tiltable on wheels or rollers that were developed during the second part of the 20 th Century for the steel and copper industries.
The general geometry of the old reverberatory furnaces was always similar, except for the size and the different brands. The charging door(s) and the slagging door were on one lateral side while the pouring spout and the tuyeres were on the opposite side. The main burner(s) and the fumes exit were located on the shorter sides of the Furnace and opposite to one another.
Continuus-Properzi patented a new design in 2010, where, as a major difference, the charging door is now located on the roof of the Furnace thereby allowing a faster, simpler, and more automatic operation.
The loading system can be accomplished via a skip charging machine or an industrial belt conveyor. The second system is the most advantageous for big size furnaces allowing many tons of scrap to be charged in just one minute.
Continuus-Properzi provides Reverberatory Refining Furnaces that cover all the different sizes of Copper Casting Lines from small ones, which produce 10,000 tons per year, up to large ones producing 75,000 tons per year (the first 250-ton capacity Refining Furnace using this new, roof top, charging concept has been in operation in the USA since 2012 with great satisfaction and excellent results. Top-charging 100 ton and 150-ton capacity Refining Furnaces followed.
The refining know-how developed and optimized in several installations during the last 25 years is the key of the profitable operation that Properzi can offer to Client worldwide.
The Reverberatory Furnace can be fed with 100% copper scrap with minimum 94% Cu that could be a mix of many different kinds of copper scrap thereby saving hundreds of dollars per ton on the raw material!
This technology is designed and capable to process copper scrap into liquid metal with a controlled content of impurities. The production of this molten copper is suitable to produce FRHC (Fire Refined High Conductivity) copper rod, strip, billets or copper ingot.
Typical raw material
The raw material that can be used in the Properzi process is a wide range of copper scrap such as:
Kanal or Birch: this type of scrap contains unalloyed copper wire having a minimum copper content of 96%.
Second class scrap (Birch and Candy): comprised of small diameter wire without insulation, normally telephone wire, as well as copper plates and wire with varnish or paper insulation moreover, clean large and small diameter copper tubes.
Granular copper (Clove): chopped wire without insulation with minimum copper content of 99%.
Third class scrap (Dream): normally a mixture of miscellaneous unalloyed scrap having an average nominal copper content of 92%.
Main advantages of our design
- EASY CHARGING SYSTEM
- IMPROVED TOTAL THERMAL EFFICIENCY
- QUANTITY OF LOADABLE SCRAP
- CONSTANT TEMPERATURES DURING CHARGING
- FASTER CHARGING PHASE
- LESS FUMES
- LESS ENERGY LOSSES
- LESS THERMAL SHOCK ON THE FURNACE’S REFRACTORY