Habka isticmaalka badbaadada leh ee qalabka digniinta dareeraha ee foornada dhalaalaysa ee birta ah

The crucible leakage alarm device of the foornada birta dhalada ah 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.

Dahaarka cusub ee foornada dhalaalaysa birta ayaa ku jirta marxaladda hore ee dhalaalidda foornada dahaarka ah. Sababo la xiriira qulqulka biyaha iyo roobabka boric acid crystal biyaha dusha sare ee xuubka, caabbinta xuubka ayaa hoos u dhacaya, iyo akhrinta ammeter-ka digniinta ayaa kor u kaca. Marka ay sarreeyso, qiimaha alaarmiga waa la gaari karaa, laakiin hadda guud ahaan si tartiib tartiib ah ayuu u kacayaa waqtigan. Ka dib dhowr foornood ayaa dhalaalay, si tartiib tartiib ah ayey u yaraan doontaa waxayna ku noqon doontaa qiyaasta caadiga ah, taas oo laga sooci karo digniinta digniinta guud ee hadda jirta. Mararka qaarkood qaylo-dhaanta qaylo-dhaanta, oo ku socotay isbeddel hoos u dhac ah muddada qallajinta, ayaa bilaabay inay mar kale kor u kacdo. Waqtigaan, foornada ayaa la baaray waxaana la ogaaday in qalliin taxaddar la’aan ah awgeed, isku-laabashada walxaha birta ah ee lagu daray ay keentay heerkulka dhalaalka hoose ee birta inuu si xoog leh kor ugu kaco oo uu ka sarreeyo heerkulka. (Ka sarreeya 1600°C), dhammaan dahaarka foornada waxaa lagu qooyay ku dhawaad ​​kaliya lakab aad u fayteysan oo adag, iyada oo aan lahayn lakab kala-guur ah iyo lakab dabacsan, taas oo keenaysa shil foorno ah. Waqtigan xaadirka ah, alaarmiga foornada ee foornada ayaa sax ah. Foornada dhalaalaysa ee dhexdhexaadka ah ee 3t waxay isticmaashaa qalab kale oo alaarmiga, mid mid oo dhulka dhigaya aaladda ogaanshaha daadinta. Qalabka waxaa ka mid ah module ogaanshaha dhulka oo ku xiran sahayda korontada iyo baaritaanka daadinta dhulka ee ku yaala foornada. Haddii dareeraha daawaha ah uu la xiriiro gariiradda, baaritaanka daadinta dhulka ayaa u horseedi doonta hadda gariiradda dhulka, moduleka baaritaanka dhulka ayaa ogaan doona oo gooyn doona. Korontada si ay u joojiso burburka gariiradda gariiradda oo ay ka ilaaliso dareeraha daawaha in uu qaado danab sare. Qalabka tijaabada daadinta dhulka ee gacanta lagu hayo waxa loo isticmaali karaa in si joogto ah oo joogto ah loo hubiyo in nidaamka baadhista daadinta dhulka ee foornada uu yahay mid sugan oo la isku halayn karo si loo hubiyo in baadhitaanka dhulku uu yahay mid gabi ahaanba dhulka la dhigay, si badbaadada hawlwadeenka iyo foornada waa la dammaanad qaaday.