The paper, especially dealt with problems of reclamation of used furan sand, carried out in new, vibratory sand reclamation unit REGMAS
developed by researches from AGH-University of Science and Technology, Faculty of Foundry Engineering in Cracow (Poland).
Functional characteristics of reclamation unit as well as the results of reclamation of used sand with furfuryl resin are discussed in the
paper. The quality of reclaim was tested by means of the LOI and pH value, dust content in the reclaim and at least by the the quality of
the castings produced in moulds prepared with the use of reclaimed matrix.
The problem related to the management of post reclamation dusts generated in the reclamation process of waste moulding sands with
organic binders is presented in the hereby paper. Waste materials generated in this process are products hazardous for the environment and
should be utilised. The prototype stand for the utilisation of this dangerous material in its co-burning with coal was developed and patented
in AGH in Krakow. The stand was installed in one of the domestic casting houses. As the utilisation result the transformed waste product
is obtained and its management in the production of ceramic materials constitutes the subject of the presented publication.
The results of mechanical reclamation of waste moulding sands with furfuryl resin and activators of new generation are presented.
The aim of the research described in this study was to determine what effect the addition of reclaim obtained in the process of dry mechanical reclamation could have on the properties of furan sands.
The sand supplied by one of the domestic foundries was after the initial reclamation subjected to a two-step proper reclamation
process. The following tests were carried out on the obtained reclaim: pH, S and N content, loss on ignition and comprehensive
sieve analysis. The obtained reclaim was next used as a component of moulding sands with furfuryl resin, wherein it formed 50%
and 80% of the base moulding material, respectively. The strength properties of the ready sand mixtures (bending strength Rg u and tensile strength Rm u ) were determined after the hardening time of 0.5, 1, 2, 4 and 24 hours.