Lub ladle yog ib qho khoom siv tseem ceeb hauv cov txheej txheem casting, siv los thauj thiab thauj cov hlau kub kub. Txawm li cas los xij, vim qhov tshwj xeeb ntawm nws qhov chaw ua haujlwm, lub ladle feem ntau ntsib kev hnav hnyav thiab kub-kub corrosion, ua rau lub neej luv luv. Yog li ntawd, yuav ua li cas txhim kho lub neej ntawm lub hauv ob sab phlurefractory castablentawm lub ladle muaj qhov tseem ceeb ntawm kev siv.
1. Ladle nruab nrab
Lub ladle muaj ib lub plhaub thiab ib sab. Lub plhaub yog riveted thiab welded los ntawm steel daim hlau, thiab hauv ob sab phlu muaj txheej ua hauj lwm + txheej txheej. Cov txheej txheem ua haujlwm yog cam khwb cia thiab tsim nrog cov kub kub resistant castables, ua hauj lwm hauv ob sab phlu thickness yog 100 ~ 150 hli, thiab txheej txheej thickness yog 10 ~ 15 hli.
2. Cov khoom lag luam thiab teeb meem
Thaum cov hlau molten raug thauj mus rau hauv lub ladle, lub hauv ob sab phlu yog raug kub, thermal shock, mechanical hnav thiab chemical yaig ntawm slag thiab hlau; Thaum pouring tawm lub molten hlau, molten hlau cuam tshuam nto yog ntau corroded. Nyob rau tib lub sijhawm, lub ladle ua haujlwm nyob rau hauv qhov kub thiab tsis kub hloov pauv. Lub sijhawm luv luv, qhov kev puas tsuaj loj dua rau hauv ob sab phlu. Yog li ntawd, lub hauv paus ntawm lub ladle yuav tsum feem ntau yog ua los ntawm cov ntaub ntawv refractory uas tiv taus corrosion, siab zog, thiab resistant rau thermal shock.
Thaum lub sij hawm inoculation kev kho mob nyob rau hauv lub ladle, lub molten hlau txav hnyav, uas aggravates lub yaig ntawm ob sab phlu. Lub slag nyob rau saum npoo ntawm cov hlau molten yog aggregated thiab bonded los ntawm ib tug casting slag tshem tawm. Thaum lub sij hawm tshem tawm slag, lub slag ua nplaum thiab yooj yim dai rau ntawm phab ntsa hauv ob sab phlu, ua rau nws nyuaj rau ntxuav. Tsis tas li ntawd, qhov scouring ntawm cov nplawm molten hlau thiab qhov kub thiab txias hloov pauv los ntawm kev ua haujlwm tsis sib xws ua rau muaj kev puas tsuaj ntawm cov refractory castable hauv ob sab phlu, tshwj xeeb tshaj yog nyob rau hauv cov kab slag.
3. Kev ua kom zoo thiab xaiv cov khoom siv refractory castables thiab lwm yam khoom siv rau hauv ob sab phlu
(1) Cov txheej txheem ua haujlwm ntawm lub ladle yog cam khwb cia nrog cov dej noo tsawg, cov khoom siv qis-cement alumina, uas muaj cov yam ntxwv zoo thiab cov yam ntxwv hauv qab no: ① Muaj peev xwm los tiv thaiv stripping ② Zoo heev txias thiab kub lub zog ③ Thermal shock resistance
(2) Cov khoom siv kho mob ntawm cov txheej txheem ua haujlwm ntawm lub ladle siv phosphoric acid ua cov ntawv khi thiab cov khoom siv alumina-based refractory. Cov khoom no muaj plasticity siab thiab tsim nyog rau kev kho cov txheej nyias nyias. Nws kuj muaj cov organic fibers, uas ua rau nws yooj yim rau qhuav. Nws muaj qhov zoo thiab cov yam ntxwv hauv qab no. ① Thermal shock resistance ② Abrasion kuj thiab corrosion kuj ③ Haum rau ferrous thiab non-ferrous hlau
(3) Cov txheej txheej ntawm lub ladle siv cov pa roj carbon-muaj kev kho refractory castable. Cov khoom no muaj qhov zoo adhesion thiab tuaj yeem siv rau kev kho cov txheej txheem nyias ntawm cov hlau sib txuas xws li cov ladles hauv kev lag luam hauv kev lag luam. Nws tseem tuaj yeem siv los ua cov khoom siv txheej txheej rau lub ladle kom txhim kho cov slag sticking ntawm lub ladle. Nws muaj qhov zoo thiab cov yam ntxwv hauv qab no: ① Kev siv ncaj qha, kev tsim kho yooj yim ② Zoo adhesion ③ Kev ua haujlwm zoo los tiv thaiv slag.
4. Ladle kho txoj kev
(1) Ladle kho txoj kev:
Lub ladle yuav tsum tau kho yuav tsum tau txias rau 4 teev ua ntej, ces cov nplaum nplaum nyob ib ncig ntawm lub ladle slag kab yuav tsum tau ntxuav, thiab kho phosphoric acid yuav tsum tau siv los ua ib tug khi rau 4 teev. Tom qab kev kho tiav, qhov saum npoo yog coated nrog cov pa roj carbon-muaj cov av nkos refractory thiab ci rau 2 teev. Nws tuaj yeem muab tso rau hauv online rau standby.
(2) Ladle unpacking txheej txheem: Unpack lub ladle uas yuav tsum tau hloov lub hauv ob sab phlu castable. Ua ntej, txias lub ladle hauv dej rau 8 teev. Tom qab lub ladle yog kiag li txias, unpack nws. Tom qab ntxuav, koj tuaj yeem siv lub ladle castable los ncuav lub ladle. Tom qab pouring, qhuav nws nyob rau hauv qhov ntxoov ntxoo rau 48 teev kom paub meej tias cov dej nyob rau hauv lub ladle yog kiag li evaporated. Tom qab ziab hauv qhov ntxoov ntxoo, siv cov pa roj carbon refractory av nkos rau ntawm qhov chaw, thiab thaum kawg ci rau 72 teev ua ntej muab tso rau hauv online siv.
