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Mokhoa o bolokehileng oa tšebeliso ea sesebelisoa sa alamo ea crucible leakage ea sebōpi se qhibilihang sa tšepe

Mokhoa o bolokehileng oa tšebeliso ea sesebelisoa sa alamo ea crucible leakage ea sebōpi se qhibilihang sa tšepe

The crucible leakage alarm device of the tšepe e pshatlang sebōpi 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.

Lesela le lecha la sebōpi sa ho qhibilihisa tšepe le boemong ba pele ba ho qhibiliha ha onto ea lesela. Ka lebaka la ho khabisoa ha metsi le pula ea metsi a kristale ea boric acid holim’a lesela, ho hanyetsa ha lesela ho fokotseha, ‘me ho baloa ha ammeter ea alamo hoa phahama. Ha e phahame, boleng ba alamo bo ka finyelloa, empa hona joale hangata e phahama butle-butle ka nako ena. Ka mor’a hore libōpi tse ‘maloa li qhibilihe, butle-butle li tla fokotseha’ me li khutlele sebakeng se tloaelehileng, se ka khetholloang ho tloha ho alamo e tloaelehileng ea ho lutla. Ka linako tse ling lerata la alamo, le neng le ntse le theoha nakong ea ho omisa, le qalile ho phahama hape. Ka nako ena, sebōpi se ile sa hlahlojoa ‘me ha fumanoa hore ka lebaka la ts’ebetso e sa tsotelleng, scaffolding ea thepa ea tšepe e ekelitsoeng e ile ea etsa hore mocheso o tlaase oa ho qhibiliha oa tšepe o phahame ka matla le ho feta mocheso oa sintering. (Ka holimo ho 1600 ° C), lesela lohle la sebōpi le chesitsoe ka hoo e batlang e le feela lesela le thata la vitrified le le thata, ntle le lera la phetoho le lera le hlephileng, kahoo le baka kotsi ea ho lutla ha sebōpi. Ka nako ena, alamo ea ho lutla ha sebōpi nakong ea ontong e nepahetse. Sebōpi sa ho qhibilihisa sa maqhubu a 3t se sebelisa sesebelisoa se seng sa alamo, se le seng se thehileng sesebelisoa sa ho lemoha ho lutla. Sesebelisoa se kenyelletsa mojule oa ho lemoha fatše o hokahaneng le phepelo ea motlakase le probe ea ho lutla fatše e fumanehang ka sebōping. Haeba mokelikeli oa alloy o kopana le coil, probe ea ho lutla fatše e tla lebisa coil hona joale fatše, ‘me mochine oa ho hlahloba fatše o tla o lemoha ebe o o khaola. Phepelo ea matla ho emisa ho senyeha ha arc ea coil le ho thibela mokelikeli oa alloy hore o se ke oa jara motlakase o phahameng. Sesebediswa sa teko ya teko ya ho dutla ha mobu se ka sebediswang kgafetsa le kgafetsa ho lekola hore na sistimi ya ho dutla ha mobu e ntse e tiile mme e ka tshepeha ho etsa bonnete ba hore phuputso ya ho dutla fatshe e theilwe ka botlalo, e le hore polokeho ya mosebeletsi le sebōpi se tiisitsoe.