Fomba fampiasana azo antoka amin’ny fitaovana fanairana leakage amin’ny lafaoro metaly

The crucible leakage alarm device of the fantsom-piraketan’ny metaly is necessary to ensure safe production, prevent the occurrence and expansion of furnace leakage accidents, help judge the use of the furnace lining, and prolong the furnace age. It is necessary to set up a crucible leakage alarm system. Generally, a direct current alarm device is used to install the stainless steel wire bottom electrode (first electrode) in contact with the molten iron and the stainless steel plate (mesh) side electrode (second electrode) between the induction coil of the furnace lining. Connect the electrode leads to the alarm device. When the molten metal leaks to the side electrode, the current rises to the set value, and the alarm device is activated. During the installation of the alarm device, it is necessary to check whether the connection between the lead wire and the electrode is good; whether the lead wire is grounded (resistance to ground> 5kC). During operation, sometimes the stainless steel wire melts at the bottom of the furnace. You can insert a conductive rod into the molten iron and use a multimeter to measure it. If the stainless steel wire is disconnected in the furnace lining, the alarm system will fail and it can only be laid when the furnace is rebuilt next time. After the alarm occurs, check whether it is a false alarm (false alarms mainly include: induced potential interference, lead wire grounding, and furnace lining wet). If the false alarm is eliminated, the furnace lining can be determined to be damaged.

Ny fandoroana ny lafaoro fandoroana metaly dia eo am-piandohan’ny fandoroana ny fatana fandoroana. Noho ny adsorption ny rano sy ny rotsak’orana ny boric asidra rano kristaly eo amin’ny ambonin’ny lining, ny fanoherana ny lining mihena, ary ny famakiana ny fanairana ammeter miakatra. Rehefa ambony dia azo tratrarina ny sandan’ny fanairana, fa amin’ny ankapobeny dia miakatra tsikelikely ny courant amin’izao fotoana izao. Rehefa levona ny lafaoro vitsivitsy, dia hihena tsikelikely izany ary hiverina amin’ny sehatra ara-dalàna, izay azo avahana amin’ny fanairana fanairana ankapobeny. Indraindray dia manomboka miakatra indray ny rivo-doza fanairana, izay nihena nandritra ny vanim-potoana fanamainana. Tamin’io fotoana io dia nojerena ny lafaoro ary hita fa noho ny fampandehanana tsy am-piheverana, ny scaffolding akora vy nampiana dia nahatonga ny mari-pana levona vy ambany kokoa niakatra be ary nihoatra ny mari-pana sintering. (Ambony 1600 ° C), ny soson’ny lafaoro manontolo dia sintered amin’ny saika vitrified mafy sy mafy sintered sosona, tsy misy ny tetezamita sosona sy malalaka sosona, ka mahatonga ny lafaoro leakage loza. Amin’izao fotoana izao, ny fanairana ny fandoroana lafaoro mandritra ny lafaoro dia marina. Ny lafaoro fandrendrehana matetika 3t dia mampiasa fitaovana fanairana iray hafa, tsirairay avy amin’ny fitaovana fitiliana leakage. Ny fitaovana dia misy môdôm-pandrefesana fototra mifandray amin’ny famatsiana herinaratra ary probe fandoroana gorodona hita ao amin’ny lafaoro. Raha mifandray amin’ny coil ny ranon-tsolika, dia hitarika ny coil amin’ny tany ny probe leakage grounding, ary ny module probe grounding dia hamantatra izany ary hanapaka azy. Famatsiana herinaratra mba hampitsaharana ny fahatapahan’ny arc amin’ny coil ary hisorohana ny rano firaka tsy hitondra malefaka. Ny fitaovana fitiliana leakage tany tan-tanana dia azo ampiasaina mba hanamarinana matetika sy tsy tapaka raha toa ka tsy misy dikany sy azo itokisana ny rafitry ny fandoroana ny tany ao amin’ny lafaoro mba hahazoana antoka fa miorim-paka tanteraka ny fitsirihana ny tany, mba ho fiarovana ny mpandraharaha sy ny azo antoka ny lafaoro.