TIANHUA ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

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LIAONING TIANHUA ENVIRONMENTAL PROTECTION TECHNOLOGY CO.LTD

COMPANY HONORS

Liaoning Tianhua Environmental Protection Technology Co., Ltd. was established in 2001 and has been established for more than 15 years.

The company's spirit is: relying on diligence to build factories, relying on integrity to build a foundation. Consulting, development, research and production integration process.

ABOUT US

PRODUCTS CENTER

LIAONING TIANHUA ENVIRONMENTAL PROTECTION TECHNOLOGY CO.LTD

polyester

polyacrylonitrile Copomopolymer

polyphenylene sulfide

polytetrafuorcethylene

Normal atmospheric temperature 0℃-120℃

Medium temperature 130℃-160℃

high temperature 170℃-280℃

framework

of PTFE sewing thread

NEWS CENTER

Dust bag: dust bag can be selected according to the dust cleaning mode

The dust removal method of bag filter is the main condition to select the type of dust bag. It can first determine whether the dust bag is woven, needle felt, compressed felt or dust bag. As for the detailed specification of dust removal bag, other filtering conditions can be further considered.

Happy New Year

Dust bag: the ability of dust bag manufacturers will also affect the processing

When selecting dust bag manufacturers, we certainly hope that they can effectively ensure a good quality. If we can really contact good manufacturers, the natural environment is also the teacher can get good bag processing effect. However, we may not have found that the ability of dust bag manufacturers has a great impact on the price. If you really want social security to be cost-effective, we should choose Liaoning Tianhua environmental protection Co., Ltd. only such high-quality dust bag manufacturers have better natural resources. It is certainly very important to measure the actual work of the manufacturers.

Common faults and elimination of blast furnace coal injection system

Oncetheblastfurnacecoalinjectionsystemfails,itmustbetreatedintimetoensurenormalcoalinjectionandreducetheimpactontheblastfurnaceoperation.Topreventthecoalinjectionsystemfrommalfunctioning,itmustfirstbeoperatedreasonably.Itisnoteasytomalfunctionduringthenormalblowingprocess,anditiseasytocausesomefailureswhenthetankispoured. 2coalinjectionsystemcompositionandoperationTheblastfurnacemustfirstbenotifiedbeforepouringthetank,payingattentiontofluctuations.Thecorrecttankingprocedureis:(1)Closethecoalvalvetoensurethatthepulverizedcoalinthelineispurged;(2)closingpurgevalve,quickshut-offvalve,injectionvalveandpressure-replenishingvalve;(3)openingtheblowdowntankdischargevalveandthepressureequalizingvalve;(4)Whenthepressureoftheblowingpipedropstozero,thebellvalveunderthecoalstoragetankisfilledwithcoaltotheinjectiontank;(5)Afterthecoalpowderinthecoalstoragetankisdischarged,theelectronicscaleiszero,andthebellvalveisclosed;(6)closingpressureequalizingvalve;(7)Openthechargingvalveunderthecoaltank,andthelowerfillingvalveisclosedafterthetankpressureisnormal.Openthesprayblowvalve,quickshut-offvalve,sprayguninletvalveandpressure-replenishingvalvetoresumenormalcoalinjection. 3commonfaultsintheproductionprocess3.1Themixerisdisconnectedbeforeandafterthesoftconnection(1)Closethecoalvalveandstopfeedingthecoal;(2)Closethepurgevalve,thequickshut-offvalve,andthesprayguninletvalve;(3)Starttheexhaustfan,blowtheindoorN2,cleanthesite,andreplacethesoftconnection;(4)Informtheblastfurnacetospraycoalnormally. 3.2explosion-proofmembraneblasting(1)Explosion-proofmembraneblastingofcoal-collectingtanksandcoalstoragetankscausedbynon-pulverizedcoalexplosions,coalinjectiontankscancontinuetospraycoal,andnotifyequipmentmaintenancepersonneltoreplaceexplosion-proofmembranes.(2)Duetotheexplosionoftheexplosion-proofmembraneofthecoal-collectingtankandthecoal-collectingtankcausedbytheexplosionofcoalpowder,thesprayairblowerischangedtoN2,andthecoalpowderofthespraypipeiscleanedandthecoalinjectionisstopped.(3)Iftheexplosion-proofmembraneofthecoalinjectiontankisblasted,thecoalinjectionwillbestoppedimmediately,andthecauseoftheexplosionwillbeinspectedandnotified,andtheblastfurnacewillbenotified.Ifitiscausedbynon-pulverizedcoalexplosion,afterthereplacementoftheblastingmembraneiscompleted,normalcoalinjectionwillresume.Ifitiscausedbypulverizedcoalexplosion,thefiresourceistreatedfirst,aftertheexplosion-proofmembraneisreplaced.AllweretransferredtoN2. 3.3Thetemperatureofpulverizedcoalinthetankexceeds70°CWhenthepulverizedcoaltemperatureinthepulverizedcoaltankexceeds70°C,allofthemarechangedtoN2coalinjection.Afterthepulverizedcoalinthespraytankiscompletelysprayed,thetankinspectionandthesourceofthefireextinguishingarecarriedout. 3.4compressedairsuddenlystoppedStamping,pressurecompensation,fluidizationandinjectionareallconvertedtoN2coalinjection.IfthereisnoN2facility,stopthecoalinjectionandnotifytheblastfurnace. The3.5N2pressuresuddenlydropstofull-usecompressedairinjectioncoal.Afterthepulverizedcoalineachpulverizedcoaltankissprayed,theN2pressurecanstillnotberecovered,thentheinjectionofbituminouscoalisstopped,andiftheconditionspermit,itcanbechangedtoanthracite. 3.6Whenthetankisinverted,thebellvalvecannotbeopened.(1)Checkthelimitpositionoftheelectromechanicalequipmentandwhetherthetransmissionsteelropeisdown;(2)Ifnon-electromechanicalproblemsaresolved,openthevalvetoreleasethepressureofthecoalstoragetankby0.2to0.25MPa,andthenclose.Openthechargingvalveunderthecoalstoragetanksothatthepressureisslightlyhigherthanthepressureofthecoalinjectiontankby0.03MPa,andthenopenthebellvalve,andrepeatthecycleuntilitisopened. 3.7Thecoalstoragetankistoofull,andtheupperbellvalvecannotbeclosed.Closethedischargevalveandopenthechargingvalveonthestoragetankfor2~5s.Repeatthismanytimesuntiltheupperbellvalveisclosed. 3.8mixerblockagephenomenon:(1)Thecoalflowatthetuyeredisappears.(2)Thepressureoftheblowingpipedropstothelevelofthehotairpressure.Approach:Stopsprayingcoal,removethemixer,andremoveanyinternaldebris. 3.9filterblockagePhenomenon:Thepressuredifferencebetweenthefilterincreasesbeforeandafter,andtheamountofcoalinjecteddecreases.Treatment:stopsprayingcoalandremoveitsinternaldebris. 3.10Coallinepluggingphenomenon:(1)Theflowofcoalatthetuyeredisappears;(2)Thefrontendisblocked,andtheinjectionpressureisclosetothepressureoftheconveyingmedium;(3)Thebackendcloggingspraypressureisclosetotheblastfurnacehotairpressure. 3.11gunjamphenomenon:(1)Thereisnocoalflowatthetuyere;(2)Thepressureoftheinjectionbranchpipeisclosetothepressureofthewindsource(multiplepipelines).Treatmentmethod:(1)Openthespraygunreverseblowvalve;(2)Replacethespraygunwhenitcannotbeblown. 3.12Injectingsystemexceeds80°CineachtankTreatment:(1)Disposalofthetank,sprayallthecoalpowderinthetankassoonaspossible,andthenre-sprayafterthetemperaturedropstonormal.(2)Switchtonitrogenblowingtochangetheblowingsourceandchargingpressurefromcompressedairtofullnitrogen.

LIAONING TIANHUA ENVIRONMENTAL PROTECTION TECHNOLOGY CO.LTD