Ua ntej, thaum lub sij hawm coking txheej txheem, thee yog rhuab mus rau qhov kub siab tshaj 1000 degree, ua rau muaj kev cuam tshuam uas tsim cov pa roj carbon monoxide (CO) thiab hydrogen (H₂). Hydrogen sulfide (H₂S) yog tsim thaum sulfur tam sim no nyob rau hauv cov thee ua ke nrog hydrogen ntawm qhov kub thiab txias; Yog li ntawd, qhov siab dua cov sulfur cov ntsiab lus hauv cov thee, qhov ua rau H₂S concentration ntau dua. Tsis tas li ntawd, lwm yam tshuaj xws li benzene, ammonia (NH₃), thiab hydrogen cyanide (HCN) raug tsim.
Qhov thib ob, cov txheej txheem sintering yog qhov ua rau muaj kuab paug ntau tshaj plaws ntawm kev ua haujlwm, tsim cov pa tawm tseem ceeb ntawm sulfur dioxide (SO₂) thiab nitrogen oxides (NOx).
Thib peb, thaum lub sij hawm tawg rau hauv lub cub tawg hlau, qhov tsis tiav ntawm coke ntawm lub cub tawg ua rau carbon monoxide (CO), nrog rau cov khoom me me ntawm H₂S thiab SO₂.
Thaum kawg, nyob rau theem steelmaking, siab - siab oxygen yog txhaj rau hauv cov hlau molten; Qhov no ua rau muaj zog oxidation ntawm cov pa roj carbon monoxide, uas ua rau muaj cov pa roj carbon monoxide ntau heev (CO).
Qhov chaw tawg tawg: Lub hom phiaj tseem ceeb yog saib xyuas cov pa tawm CO ze ze ntawm tuyeres, tapholes, slag notches, thiab lub cub tawg sab saum toj them nyiaj. Vim yog qhov siab - qhov kub thiab muaj plua plav ib puag ncig, kev saib xyuas feem ntau yog ua los ntawm kev ruaj khov - cov cuab yeej ntes lossis tshuaj xyuas neeg hlau.
Hloov Lub Rauv Cheeb Tsam: Cov ntsiab lus tseem ceeb saib xyuas suav nrog cov pa oxygen thiab sub-Lance insertion ports, nrog rau cov pa taws thiab cov chaw them nyiaj, txhawm rau tiv thaiv cov pa tawm.
Coke Cub Cheeb Tsam: Kev saib xyuas tsom mus rau qhov ntau ntawm CO, H₂S, thiab benzene-series compounds nyob rau hauv lub qhov cub coke hauv qab daus (ib cheeb tsam txaus ntshai / tawg) thiab nyob rau saum lub cub tawg (tshwj xeeb ntawm lub qhov them nyiaj thiab cov kav dej).
Gas Holders thiab Pipeline Networks: Nws yog qhov yuav tsum tau saib xyuas ob qho tib si CO concentrations thiab cov ntsiab lus oxygen (O₂) hauv cov kwj roj kom tsis txhob muaj hluav taws kub.
Cov cuab yeej pom zoo: Cov khoom siv roj ruaj ruaj raug pom zoo; zoo li ib qho CO detector,tas h2s gas detector, ammonia detector, cov no tuaj yeem txuas nrog DCS lossis PLC system ntawm 4-20 mA lossis RS485 Modbus outputs. Tsis tas li ntawd, portable multi gas detectors muaj peev xwm ua piv txwv thiab txheeb xyuas CO, O₂, H2S, thiab cov roj hluav taws xob (EX)- raug pom zoo rau ntawm - chaw kuaj xyuas.