Raws li lub hauv paus tseem ceeb ntawm kev lag luam plua plav thiab cov khib nyiab pov tseg, cov txheej txheem kev ua haujlwm ntawm cov hmoov tshauv hlau ncaj qha cuam tshuam rau cov khoom siv, kev nyab xeeb kev ua haujlwm, thiab kev ua raws li ib puag ncig. Cov txheej txheem ua haujlwm yuav tsum xav txog cov yam ntxwv ntawm cov khoom siv, cov khoom siv, thiab cov kev cai ib puag ncig los tsim cov txheej txheem kev ua haujlwm.
I. Ua ntej- Kev Npaj Ua Haujlwm thiab Kev Tshuaj Xyuas Kev Nyab Xeeb Ua ntej pib ua haujlwm, yuav tsum tau ua qhov kev tshuaj xyuas zoo: Ua ntej, paub meej tias cov qauv kev ncaj ncees ntawm cov tshauv hopper lub cev, soj ntsuam cov kab nrib pleb lossis deformation ntawm welds thiab flange kev sib txuas, thiab kuaj xyuas cov bolts xoob ntawm cov khoom txhawb nqa; thib ob, xyuas cov txheej txheem lubrication ntawm cov khoom sib kis ntawm cov khoom siv unloading (xws li lub rooj vag li qub thiab cov ntsia hlau conveyors), manually tig lub hopper kom paub meej tias tsis muaj jamming; rau cov ntse tshauv hoppers nruab nrog qib ntsuas thiab ntsuas kub ntsuas, txheeb xyuas qhov sib xws ntawm cov ntsuas ntsuas thiab qhov tseeb qhov tseem ceeb ntawm qhov chaw kom ntseeg tau cov teeb liab kis tau tus mob. Yog tias cov hmoov tshauv hopper siv nyob rau hauv ib puag ncig flammable lossis toxic plua plav, kuj xyuas qhov ua tau zoo ntawm cov khoom siv hluav taws xob hauv av thiab paub meej tias qhov tawg - pov thawj siab nyem valve yog qhov zoo. Qhov chaw ua haujlwm yuav tsum zoo -ventilated. Ua ntej ua haujlwm hauv qhov chaw kaw, cov pa oxygen concentration thiab cov pa phem yuav tsum tau kuaj. Qhib manholes hauv cov pa oxygen- qhov chaw tsis txaus lossis cov pa oxygenated ntau dhau yog txwv nruj heev.
II. Kev Saib Xyuas Kev Noj Qab Haus Huv thiab Kev Ua Haujlwm Thaum lub sijhawm pub mis, cov khoom ntws thiab cov concentration yuav tsum nruj me ntsis tswj kom tsis txhob overloading lub hopper vim yog pub ntau dhau rau lub sijhawm luv. Cov neeg ua haujlwm yuav tsum saib xyuas cov ntaub ntawv hloov pauv hauv lub sijhawm ntawm lub tshuab computer lossis cov cuab yeej hauv zos. Thaum cov khoom siv nce mus txog 80% ntawm lub peev xwm ntsuas, cov txheej txheem tshem tawm yuav tsum tau pib sai sai los tiv thaiv "tag nrho hopper" teeb meem uas tuaj yeem ua rau cov khoom tsis zoo lossis cov khoom puas tsuaj. Thaum lub sijhawm ua haujlwm, kev soj ntsuam ze ntawm cov suab nrov txawv txav ntawm lub hopper thiab unloading ntaus ntawv yog qhov tseem ceeb: cov suab nrov ntawm cov hlau nplaum yuav qhia tau tias muaj cov impurities nyuaj hauv cov khoom, ua rau muaj kev hnav ntau dua; kev vibrations txawv txav yuav tsum tau tshawb xyuas los xyuas qhov ruaj khov ntawm cov qauv kev txhawb nqa lossis lub cev muaj zog ua haujlwm tsis zoo. Rau cov hoppers ua haujlwm ntawm qhov kub thiab txias, cov phab ntsa sab nrauv yuav tsum tau sau tseg tsis tu ncua kom tsis txhob muaj hluav taws xob ntau dhau los yog kub hnyiab vim yog cov rwb thaiv tsev puas.
III. Unloading Operation and Process Control Unloading operations yuav tsum ua raws li lub hauv paus ntsiab lus ntawm "qhib ua ntej, tom qab ntawd kaw, thiab kho nyob rau theem." Ua ntej pib lub unloading ntaus ntawv, lub downstream conveying khoom (xws li pneumatic conveying twj thiab scraper conveyors) yuav tsum tau pib ua ntej. Thaum cov cuab yeej ua haujlwm ruaj khov, cov hmoov tshauv hopper tawm valve yuav tsum tau qhib kom tiv thaiv cov khoom ntim hauv cov raj xa dej los yog qhov system siab buildup. Thaum lub sij hawm unloading, lub valve qhib yuav tsum tau hloov raws li lub downstream ua peev xwm: thaum tuav cov ntaub ntawv viscous, intermittent unloading (qhib rau 5-10 feeb, ncua rau 2-3 feeb) yuav siv tau los pab rhuav tshem arches siv cov khoom ntawm tus kheej hnyav; Thaum tuav cov hmoov dawb-ntws, tus nqi thauj khoom tuaj yeem maj mam nce ntxiv, tab sis nws yog qhov tsim nyog kom tsis txhob muaj huab cua nqa plua plav thiab ua rau cov plua plav theem nrab. Tom qab tshem tawm, cov hmoov tshauv hopper tawm valve yuav tsum raug kaw ua ntej, thiab lub tshuab yuav tsum tau nres tsuas yog tom qab cov khoom siv downstream tau nteg cov khoom seem los tiv thaiv cov khoom tsub zuj zuj thiab caking hauv cov kav dej.
IV. Kev kaw thiab kev tu ncua kev ua haujlwm Thaum npaj kev kaw, nws yuav tsum ua raws li hauv qab no: "tso tseg ua ntej noj, tom qab ntawd ntxuav cov hmoov tshauv, thiab thaum kawg kaw cov khoom siv": tom qab tso tseg cov khoom siv sab saud noj, khaws cov khoom siv thauj khoom mus kom txog thaum cov hmoov tshauv khoob khoob. Yog tias tsim nyog, manually pab hauv kev ntxuav cov hmoov tshauv hauv qhov chaw tuag (tseem ceeb ua raws li kev pom zoo ntawm qhov chaw ua haujlwm thiab kev tiv thaiv yuav tsum tau ua). Tom qab kaw, lub hwj chim yuav tsum raug txiav thiab ceeb toom cov cim qhia. Xeb-cov roj nplua nyeem yuav tsum tau siv rau cov khoom sib kis, thiab tus neeg saib xyuas kev tiv thaiv yuav tsum tau muab txau rau hauv qhov chaw yooj yim corroded (xws li cov phab ntsa sab hauv ntawm cov pa roj carbon steel ash hopper). Thaum lub sij hawm niaj hnub tu, cov plua plav saum npoo ntawm qib ntsuas ntsuas yuav tsum tau ntxuav txhua lub lim tiam, thiab cov hnav khaub ncaws- yuav tsum tau kuaj xyuas txhua hli (hloov thaum lub thickness txo mus rau 1/3 ntawm nws thawj thickness). Lub sealing strips thiab compensating pob qij txha yuav tsum tau sim rau elasticity peb lub hlis twg los xyuas kom meej tias tsis muaj kev laus los yog tawg.
V. Thaum muaj xwm txheej ceev thiab xwm txheej tshwj xeeb Thaum muaj kev sib tsoo tam sim ntawd, tsis txhob cuam tshuam ncaj qha rau sab nrauv phab ntsa ntawm cov tshauv hopper (qhov no yuav ua rau muaj kev puas tsuaj). Siv cov cuab yeej txuas tshwj xeeb (xws li lub tshuab pneumatic vibrator) ntawm thaj chaw txuas, lossis qhia ib ntus qis - cua ntws los cuam tshuam cov khoom siv. Yog tias muaj plua plav tawm, tam sim ntawd tso tseg tsis pub noj thiab kaw txhua qhov qhib qhib, qhib lub tshuab tshem tawm plua plav xwm txheej ceev, thiab tsuas yog rov ua haujlwm tom qab cov plua plav concentration mus txog tus qauv. Rau cov hmoov tshauv uas tsis siv sijhawm ntev, cov khoom siv sab hauv yuav tsum tau muab pov tseg thiab kom qhuav. Lub desiccant tuaj yeem muab tso rau sab hauv los tiv thaiv xeb, thiab sab nraud yuav tsum tau npog nrog cov ntaub thaiv dej tsis zoo los tiv thaiv ib puag ncig corrosion.
Hauv cov ntsiab lus, kev ua haujlwm ntawm cov hlau tshauv hoppers yuav tsum ua raws li "kev nyab xeeb, txheej txheem, thiab kev saib xyuas kom meej," thiab cov txheej txheem kev ua haujlwm yuav tsum tau siv los ua kom cov khoom siv tau zoo tshaj plaws thaum ua kom ntev - lub sijhawm ua haujlwm ruaj khov ntawm qhov system.