Nyob rau hauv cov txheej txheem ntawm kev siv cov ntaub ntawv tsis zoo li refractory, muaj ntau yam cuam tshuam rau lawv cov kev ua tau zoo, xws li kev xaiv cov khoom siv, kev tsim kho, kev tu thiab lwm yam. Ntawm lawv, qhov tseem ceeb ntawm kev tsim kho yog qhov tseem ceeb.
Cov kev cai yuav tsum tau ua raws li thaum tsim kho
(1) Yog hais tias lub ntim ntawmrefractory castablesyog puas, cov ntaub ntawv yog obviously to, paug los yog damp thiab deteriorated, lub ntim yuav tsum tsis txhob siv.
(2) Qhov saum npoo ntawm cov qauv hlau thiab cov khoom siv hauv kev sib cuag nrog cov ntaub ntawv amorphous refractory yuav tsum tau ntxuav ntawm cov xeb ua ntej. (3) Qhov sib xyaw ua ke ntawm cov khoom siv amorphous refractory yuav tsum tsis txhob hloov pauv raws li kev tsim kho. Dej los yog lwm yam ntaub ntawv yuav tsum tsis txhob muab ntxiv rau cov khoom sib xyaw amorphous refractory ntawm lub siab nyiam.
(4) Qhov saum npoo ntawm lub refractory prefabricated Cheebtsam thauj mus rau qhov chaw tsim kho yuav tsum muaj: ① cov cim tsim khoom; ② kev soj ntsuam zoo dhau lub cim; ③ tus naj npawb raws li kev tsim kho ntawm peb lub ntsej muag sib txawv; ④ lub cim taw tes dai; ⑤ hnub tsim khoom.
(5) Thaum muab cov khoom siv refractory prefabricated, txoj hauj lwm thiab cov txheej txheem ntawm kev txhawb nqa yuav tsum ua raws li cov kev ntxhov siab ntawm cov khoom thiab yuav tsum tsis txhob ua rau overstress thiab kev puas tsuaj rau lub prefabricated Cheebtsam. Lawv yuav tsum tau pre-moistened ua ntej pouring thiab txau.
(6) Hlau tamping cov cuab yeej xws li vibrating rods thiab tamping hammers yuav tsum tsis txhob ua ncaj qha rau lub thauj tog rau nkoj. Yog tias tsim nyog, cov rooj ntoo ntoo yuav tsum tau siv los ua cov ntaub qhwv.
(7) Qhov kev tso cai qhov yuam kev ntawm amorphous refractory cov ntaub ntawv hauv ob sab phlu tuaj yeem txiav txim siab los ntawm kev xa mus rau qhov yuav tsum tau ua rau lub refractory cib hauv ob sab phlu.
(8) Cov dej huv yuav tsum tau siv rau kev sib xyaw refractory castables. Hauv thaj chaw ntug dej hiav txwv, cov dej sib tov yuav tsum tau sim thiab nws cov tshuaj chloride ion (C1-) concentration yuav tsum tsis txhob siab tshaj 300 mg / L.
(9) Lub formwork siv rau pouring yuav tsum muaj txaus rigidity thiab lub zog, lub formwork loj yuav tsum raug, thiab deformation yuav tsum tau tiv thaiv thaum lub sij hawm tsim kho. Lub formwork pob qij txha yuav tsum nruj thiab to-proof. Kev tiv thaiv kev tiv thaiv yuav tsum tau ua rau lub formwork. Kev ntsuas dej tsis zoo yuav tsum tau coj mus rau qhov chaw ntawm insulating masonry nyob rau hauv kev sib cuag nrog cov castable.
(10) Lub castable yuav tsum tau tov nrog ib tug quab yuam tov khoom. Lub sijhawm sib tov thiab cov kua ntxiv yuav tsum nruj me ntsis raws li cov lus qhia kev tsim kho. Thaum hloov cov khoom lag luam, lub tov khoom, lub hopper sab sauv, lub thawv ntim, thiab lwm yam yuav tsum tau ntxuav.
(11) Lub stirred refractory castable yuav tsum tau poured nyob rau hauv 30 feeb, los yog poured nyob rau hauv lub sij hawm teev raws li cov kev cai ntawm kev tsim kho cov lus qhia. Lub castable uas tau tsim los ua ntej yuav tsum tsis txhob siv.
(12) Cov hlau tuav lossis hlau embedded qhov chaw nyob rau hauv castable yuav tsum muab tso rau ntawm qhov chaw uas tsis yog-rhuab. Qhov kev sib cuag ntawm cov hlau tuav lossis hlau embedded qhov chaw thiab cov refractory castable yuav tsum tau muab nrog ib tug expansion buffer txheej raws li tsim nyog. Lus Cim: Kev khiav hauj lwm kub ntawm cov hlau zoo tib yam yuav tsum tsis pub tshaj 350 degree.
(13) Kev teeb tsa ntawm kev nthuav dav sib koom ua ke ntawm kev sib koom ua ke cam khwb cia refractory hauv ob sab phlu yuav tsum tau teev los ntawm tus tsim. Rau av nplaum los yog high-alumina refractory castables, thaum tus qauv tsim tsis qhia txog tus nqi expansion sib koom ua ke, qhov nruab nrab tus nqi ntawm expansion sib koom ib 'meter' ntawm ob sab phlu tuaj yeem yog cov ntaub ntawv hauv qab no: ① av nplaum refractory castable yog 4-6 hli ② High-alumina cement refractory castable yog 6-8mm; ③ Phosphate refractory castable yog 6-8 hli ④ Dej iav refractory castable yog 4-6 hli ⑤ Portland cement refractory castable yog 5-8 hli.
(14) Lub castable yuav tsum tau vibrated thiab compacted. Lub tshuab vibrating yuav tsum yog lub vibrator ntxig lossis lub phaj tiaj tus vibrator. Hauv cov xwm txheej tshwj xeeb, lub vibrator txuas nrog lossis phau ntawv compaction tuaj yeem siv tau. Thaum siv lub vibrator ntxig, lub thickness ntawm txheej casting yuav tsum tsis pub tshaj 1.25 npaug ntawm qhov ntev ntawm qhov ua haujlwm ntawm lub vibrator; Thaum siv lub tiaj tiaj vibrator, nws thickness yuav tsum tsis txhob ntau tshaj 200mm. Nws tus kheej ntws castables yuav tsum tau ua raws li cov lus qhia kev tsim kho. Insulating refractory castables yuav tsum tau compacted manually. Thaum siv cov cuab yeej siv tshuab, kev sib cais thiab qhov ntim ntau dua yuav tsum raug tiv thaiv.
(15) Lub pouring ntawm castables yuav tsum tau nqa tawm tsis tu ncua. Qhov thib ob txheej ntawm castables yuav tsum tau nchuav ua ntej txheej txheej ntawm castables solidifies. Yog hais tias lub caij nyoog dhau lub sij hawm solidification, nws yuav tsum tau kho raws li kev tsim kho kev sib koom ua ke. Kev tsim kho kev sib koom ua ke yuav tsum tau tso rau ntawm kab nruab nrab ntawm tib kab ntawm thauj tog rau nkoj cib.
(16) Tom qab kev tsim kho, refractories castables yuav tsum tau kho raws li cov txheej txheem teev nyob rau hauv tus tsim. Yog tias tsis muaj kev cai tshwj xeeb, nws tuaj yeem ua raws li cov lus qhia. Thaum lub sij hawm kho ntawm castables, lawv yuav tsum tsis txhob raug rau sab nraud quab yuam thiab vibrations. Cov cua kub ntawm chav kho yuav tsum yog 10-15 degree / h, thiab qhov cua txias yuav tsum tsis pub tshaj 40 degree / h.
(17) Non-load-bearing formwork yuav tsum raug tshem tawm tsuas yog thaum lub zog ntawm cov castable tuaj yeem xyuas kom meej tias nws cov npoo thiab cov npoo yuav tsis raug puas los yog deformed vim demolding; load-bearing formwork yuav tsum raug tshem tawm tsuas yog tom qab lub castable ncav cuag 70% ntawm lub zog tsim. Thermosetting castables yuav tsum tau ci rau qhov ntsuas kub ua ntej demolding.
(18) Rau qhov zoo ntawm qhov chaw pouring zoo ntawm castables, rau txhua hom lossis sib xyaw piv, 20m3 ntawm cov ntawv xeem yuav tsum khaws cia ua ib pawg rau kev tshuaj xyuas. Yog tias tus lej tsawg dua qhov no, kev tshuaj xyuas batch yuav tsum ua. Thaum tib lub hom phiaj los yog qhov sib tov sib xyaw yog siv rau ntau qhov kev tsim kho, cov ntawv xeem yuav tsum tau khaws cia rau kev tshuaj xyuas txhua zaus. Cov khoom soj ntsuam thiab cov kev cai yuav tsum tau xa mus rau cov kev cai ntawm cov qauv kev lag luam tam sim no "Clay and High Alumina Dense Refractory Castables" YB/T5083.
(19) Yuav tsum tsis muaj qhov tsis xws luag xws li tev, tawg, qhov, thiab lwm yam. Mesh tawg yog tso cai. (20) Thaum lifting castable prefabricated qhov chaw, lub zog ntawm prefabricated qhov chaw yuav tsum tau raws li lub zog xav tau los ntawm tus tsim rau lifting. Prefabricated qhov chaw yuav tsum tau lifted thiab muab tso rau maj mam thaum lub sij hawm lifting, thiab lifting yuav tsum tau nruj me ntsis raws li txoj cai. Qhov dav ntawm qhov sib txawv ntawm masonry ntawm prefabricated qhov chaw thiab kev kho ntawm qhov sib txawv yuav tsum ua raws li cov qauv tsim.
(21) Prefabricated qhov chaw yuav tsum tau nruab nrog lifting rings, thiab lifting rings yuav tsum tau lifting thaum lifting prefabricated qhov chaw. Rau qhov cub ru tsev prefabricated qhov chaw uas siv dai cib raws li lub zog xa hluav taws xob, thaum lub sij hawm nqa thiab installation txheej txheem, nws yog ib qho tsim nyog los xyuas kom meej tias txhua dai cib sib npaug sib npaug thiab cov cib dai yuav tsum tsis txhob puas los ntawm kev sib tsoo. Rauv ru tsev prefabricated qhov chaw yuav tsum tsis txhob muab stacked, thiab thaum stacking, lub prefabricated qhov chaw yuav tsum tsis txhob ncaj qha stacked rau ntawm dai cib ntawm lub cub tawg ru tsev prefabricated qhov chaw.
