Thaum xaivrefractory cibcov ntaub ntawv rau cement precalciner ntau lawm kab kilns, dua li tus nqi, yam xws li lub neej ntev kev pab cuam, zoo rwb thaiv tsev, yooj yim siv txoj kev, ceev kev tsim kho ceev, yooj yim txij nkawm, thiab zoo versatility feem ntau yuav tsum tau txiav txim siab. Raws li qhov no, tsab xov xwm no tsom mus rau kev tsim cov khoom siv refractory rau ntau qhov tshwj xeeb ntawm cov cement rotary kilns, muab cov txheej txheem xaiv rau cov ntaub ntawv refractory siv hauv cov cement rotary kilns rau cov khoom siv refractory manufacturers thiab cov neeg ua haujlwm kev lag luam cement.
1: Kev tsim kho ntawm cov ntu ntu ntawm lub plhaub kiln welded ua ke
Refractory mortartuaj yeem muab tso ncaj qha rau hauv cov pob zeb refractory kom ntseeg tau tias kev sib cuag nruj ntawm cov hluav taws kub thiab lub plhaub kiln thiab cov refractory firebricks ntawm ob sab. Lub thickness ntawm lub mortar nyob rau hauv lub refractories bricks yuav tsum tsis txhob ntau tshaj 8 hli, txwv tsis pub nws yuav cuam tshuam qhov chaw ruaj khov ntawm cov hluav taws cib thiab kev ruaj ntseg ntawm lub nplhaib.
Yog hais tias weld thickness tshaj 8 hli:
Rau cov welds siab hauv zos, siv ib txhais tes - tuav grinder kom tshem tawm cov khoom ntau dhau.
Rau welds nrog ib tug ntev, siab heev seem, siv ib tug cib grinder mus zom cov seem ntawm refractory hluav taws cib tsa los ntawm weld, kom lub plaub fab ntawm lub refractory cib haum snugly tiv thaiv lub cev kiln.
Rau cov welds ntev protruding me ntsis saum lub qhov cub lub cev, cov txheej txheem saum toj no tuaj yeem siv ua ke.
II: Kev tsim kho ntawm Deformed Tshooj ntawm Rotary Kiln Lub Cev
Tom qab lub sijhawm ua haujlwm, lub qhov cub hluav taws xob feem ntau ntsib qhov chaw deformation vim qhov chaw liab - kub. Nyob rau hauv xws li mob, xyuas kom meej qhov zoo ntawm masonry yog nyuaj. Kev ntsuas tsim nyog yuav tsum tau ua raws li qhov xwm txheej tshwj xeeb. Txawm li cas los xij, nws yog ib qho tseem ceeb los xyuas kom meej tias cov pob qij txha ntev ntawm lub cib yog sib npaug mus rau lub axis, thiab cov pob qij txha cib cib yog qhov sib npaug rau thiab coplanar nrog cov axis. Rau me me deformation, yuav tsum tau siv ib tug tshiab ua ke ntawm ob hom ntawm bricks nrog txawv curvatures, raws li nyob rau hauv lub cheeb tsam ntawm lub voj voog ntawm curvature, hloov cov refractory bricks rau curvature ntawm lub deformed seem. Siv refractory mortar sib xws nrog cov refractory firebricks tso cai rau cov cib hloov mus rau lub cev deformed kiln. Thaum siv txoj kev no, qhov sib txawv siab tshaj plaws ntawm cov refractories bricks yuav tsum tsis pub tshaj 1.5 hli. Lub thickness ntawm refractory mortar ntawm refractory hluav taws cib thiab lub plhaub kiln yuav tsum tsis pub tshaj 8 hli.
III. Kev tsim kho ntawm Refractory Castable ntawm Feed End
Txoj kev tsim kho rau lub refractory castable ntawm qhov kawg pub yog zoo ib yam li ntawm lub taub hau kawg. Cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov yog: Qhov siab ntawm qhov casting yuav tsum yog tsawg kawg yog 50 hli siab tshaj lub nplhaib sib khi lub nplhaib, tso cai rau cov cua sov- cov hlau sealing nplhaib kom thim rov qab rau hauv nruab nrab ntawm cov refractory castable. Qhov no tiv thaiv cov cua kub ntau dhau los ntawm kev ua rau lub cev kiln los ntawm lub nplhaib sealing. Txij li qhov no ntawm cov castable tsis muaj kev txhawb nqa ntawm lub plhaub hlau, nws lub zog yuav cuam tshuam me ntsis; Yog li ntawd, kev txhawb nqa yuav tsum tau muab rau hauv cov pob qij txha nthuav dav thiab tso cov thauj tog rau nkoj bolts.
Yuav tsum muaj qhov sib txawv tsawg kawg yog 40 hli nruab nrab ntawm lub refractory castable thiab pub tus nplaig ntawm lub qhov cub tail pamber chamber. Qhov no ua kom cov nyiaj them rau cov xwm txheej hauv qab no:
a. Thermal expansion ntawm tus nplaig pub thiab lub cev kiln;
b. Nce deflection ntawm tus nplaig noj vim txo qis nruj nyob rau hauv siab - qhov kub thiab txias, ua rau nws sag;
c. Misalignment ntawm lub qhov cub lub cev lub axis thaum lub sij hawm installation thiab tom qab ua hauj lwm.
Txawm li cas los xij, qhov sib txawv no yuav tsum tsis pub tshaj 50mm. Qhov sib txawv loj heev yuav ua rau muaj roj ntau dhau thiab cov nqi ntws hauv qab ntawm tus nplaig noj, nqa cov khoom siv ntau dhau mus rau hauv qhov sib khi thiab ua rau cov khoom xau ntawm lub qhov cub tawg.
