EURL Briqueterie Irdjen chooses Bongioanni
Bongioanni, the plant engineering company based in Fossano, Italy, has supplied a new 612FR primary crusher for the first stage of the preparation line. This high-capacity machine (≥ 200 t/h) is capable of processing big blocks of clay even with very high hardness. The primary crusher has been installed outside the workshop and feeds one of the two box feeders that prepare the clay body ready for production.
The precomminuted clay is then further reduced in size in a 13LD clay disintegrator and an LE810 roughing roller mill. Before it goes into the silo, the clay is mixed in a Mix 710I wetting mixer.
The storage area has not been modified by Bongioanni. The clay is picked up by a mechanic paddle that feeds the box feeder of the production line. This consists of an LI1012 refining roller mill, a machine featuring hydraulic safety system with sleeves made of thermally treated alloy steel with a hardness of 60-62 HRC.
The extruder installed is the Tecno 750M model equipped with a Mix 710D de-airing mixer. The key features of this machine are its reduction unit with wide-dimensioned parallel axes and a weight of approx. 6 t. The big vacuum chamber ensures excellent de-airing of the clay. The optimized pitch of the augers enables a high rate of productions at a reduced speed.
With the electric control panel supplied as standard by Bongioanni, the R.A.V. system for automatic speed control regulates the speed of the extruder to ensure optimal filling of the auger at all times and therefore constant pressure for enhanced quality of the extruded products.
The customer has ordered the pressure head and dies from the subsidiary Bongioanni Moulds and dies. The pressure head with different cone shapes has been dimensioned for use with the dies B8 with five exits and B12 with three exits. For the dies, the customer has chosen the top of the range Omega series from Bongioanni Moulds and dies. These dies can be equipped with a single lubricate braking system with outside adjustment, bridge support cores sectioned for single exit and with all the components that touch the clay protected with abrasion-proof inserts that can be completely disassembled. These state-of-the-art dies have been purpose-designed to meet the customer’s requirements in terms of easy use and cost savings. Cores and frame are made of en bloc tungsten carbide with a thickness of 15 mm. Anticorrosive dusts are used to produce these components.
The bridge is made from a new abrasion-proof steel with a hardness of 40 HRC, and further protected with thick and hard chromium plating. The use of these very abrasion-resistant materias ensures constant quality of the product over long periods of time.
