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COMPANY CULTURE

PROFILE 

 

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

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    polyacrylonitrile Copomopolymer

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    polyphenylene sulfide

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    polytetrafuorcethylene

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.
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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

TEL:024-54265333、15041317999 

EMAIL:  peng@ln-th.com

ADD:Beishan Street, Gaowan Development Zone, Fushun City, Liaoning Province

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