The influence of biomaterial in the binder composition on the quality of reclaim from furan no-bake sands

• Autorzy: Major-Gabryś Katarzyna , Hosadyna-Kondracka Małgorzata , Skrzyński Mateusz , Stachurek Iwona

Identyfikatory

DOI

10.24425/ace.2022.143032

Warianty tytułu

PL

Wpływ biomateriału w spoiwie na jakość regeneratu otrzymywanego z samoutwardzalnych mas furanowych

• Języki publikacji: EN

Abstrakty

EN

The aim of this paper is to determine the influence of biomaterial in the binder composition on the quality of reclaim from furan no-bake sands. The biomaterial is introduced into the moulding sand in order to accelerate the biodegradation of post-regeneration dust and thus to reduce the amount of harmful waste from foundries in landfills. This addition, however, can’t deteriorate the technological properties of the moulding sand, including its ability to mechanical regeneration. Chemically bonded moulding sands are characterized by high ability to mechanical regeneration, which reduces the consumption of the raw material and costs related to their transport and storage. A side effect of the regeneration process is the formation of a large amount of post-regeneration dusts. According to the tendencies observed in recent years, moulding processes must meet high requirements connected to environmental protection including problems related to the disposal of generated wastes. A partial replacement of synthetic binding materials with biomaterials may be one of scientific research directions on the production of innovative foundry moulding and core sands. The conducted regeneration tests presented in this paper initially proved that biomaterial slightly decreases the quality of reclaim from moulding sand with its addition. However, its ability to regeneration increases with time of the process. In previous research authors tested biodegradability of the dust remaining after the regeneration process. The tests proved that moulding sand with biomaterial added at the stage of the production process is characterized by about three times better biodegradability than the same moulding sand without additive.

PL

Tematem niniejszej pracy jest określenie wpływu dodatku biomateriału (PCL) do spoiwa na jakość regeneratu z samoutwardzalnych mas furanowych. Zadaniem biomateriału jest przyspieszenie biodegradacji pyłów poregeneracyjnych i tym samym doprowadzenie do zredukowania na składowiskach ilości szkodliwych odpadów pochodzących z odlewni. Dodatek ten nie może jednak pogarszać właściwości technologicznych masy, w tym jej zdolności do regeneracji mechanicznej. Autorzy przeprowadzili proces regeneracji mechanicznej, a następnie badaniom poddali regeneraty z mas formierskich utwardzanych chemicznie przeznaczonych do produkcji wielkogabarytowych odlewów żeliwnych. Odlewy żeliwne znajdują szerokie zastosowanie w motoryzacji, transporcie morskim i kolejowym, w energetyce, rolnictwie oraz budownictwie. Produkcja odlewu wielkogabarytowego o złożonym kształcie, charakteryzującego się wysoką jakością przy zachowaniu wymaganych właściwości użytkowych, obejmuje wiele etapów procesu produkcyjnego. Jednym z nich jest odpowiedni dobór technologii mas formierskich i rdzeniowych. Masy formierskie i rdzeniowe wykorzystywane są do produkcji odlewów w około 80% wszystkich odlewni. Największą ilość odpadów wytwarzanych w odlewniach stanowi zużyta masa formierska / rdzeniowa i sięga ona czasem nawet 90%. Przyjmuje się, że średnio z 1 Mg odlewów powstaje 0,6-1,0 Mg zużytej masy [4, 5], a według [2] do wyprodukowania 1 kg odlewu potrzeba około 4 kg masy formierskiej. Światowa produkcja odlewów wynosi około 100 mln Mg [2, 6], w tym odlewy żeliwne w masach formierskich utwardzanych chemicznie w ilości 30 mln Mg, co przy założeniu stopnia regeneracji na poziomie 40-50% daje 15-18 mln Mg zużytego piasku [4]. Prezentowany w pracy temat poświęcony jest materiałom pochodzącym z procesu odlewania do form piaskowych wykonanych z piasku kwarcowego ze spoiwem organicznym na bazie żywicy modyfikowanej alkoholem furfurylowym, utwardzanej mieszaniną kwasów zawierających siarkę.

Słowa kluczowe

EN

biodegradability; biomaterial; PCL; mechanical regeneration; furan no-bake; organic mass; moulding sand; post-regeneration dust; waste disposal

PL

biodegradowalność; biomateriał; PCL; masa formierska; masa furanowa; masa organiczna; pył poregeneracyjny; regeneracja mechaniczna; utylizacja odpadów

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2022
• Tom: Vol. 68, nr 4
• Strony: 163--177
• Opis fizyczny: Bibliogr. 36 poz., il.

Twórcy

autor

Major-Gabryś Katarzyna

• AGH University of Science and Technology, Faculty of Foundry Engineering, Cracow, Poland

• https://orcid.org/0000-0003-1956-9734

autor

Hosadyna-Kondracka Małgorzata

• Łukasiewicz Research Network - Krakow Institute of Technology, Cracow, Poland

• https://orcid.org/0000-0002-6819-0563

autor

Skrzyński Mateusz

• AGH University of Science and Technology, Faculty of Foundry Engineering, Cracow, Poland

• https://orcid.org/0000-0003-1097-7790

autor

Stachurek Iwona

• Łukasiewicz Research Network - Krakow Institute of Technology, Cracow, Poland

• https://orcid.org/0000-0002-4788-9455

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