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How to increase the useful life of conveyor belts

How to increase the useful life of conveyor belts

  • Classification: Industry News
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  • Release time: 2018-05-17
  • Views:81

【概要描述】MechatronicsOnlineNews]Inrecentyears,asEuropeanandAmericancountries’demandforcoalplummeted,thisyear’ssouthernChinahasplentyofrain,andmajorhydropowerstationsareoperatingatfullcapacity.Ithasbecomethereasonforthedeclineincoalpricesthisyear.Atthesametime,thedeclineincoalpriceshasgreatlyaffectedtheenthusiasmofupstream-relatedcompaniestoputintoproduction,anditisparticularlyimportanttoimprovetherecyclingofresourceswithintheenterprise.Let’snottalkabouttheconveyorbelt.Ibelievethatitisabigexpenseforeverycoalminingenterprise.WhenItalkaboutithere,Iwanttobrieflytalkaboutsomeissuesaboutimprovingtheconveyorbelt,andsomeaboutimprovingtheconveyorbelt.Questionofage.哪些Whichmethodsdoyouuse?Theauthorhassummarizedafewpoints,andeveryonemaywishtolearnfromthem.1.Improvetheconveyordrophopper.Improvingthefallinghopperoftheconveyorbeltisoneoftheeffectivemeasurestopreventtheearlydestructionoftheconveyorbelt.Improvethedroppinghopperatthetransferplaceofeachbeltconveyor,sothatitsabilitytopassforeignobjectsisincreasedby2.5times.Longandlargeforeignobjectsarenoteasilycaughtbetweenthefunnelwallandtheconveyorbeltduringtransportation,reducingtheriskofforeignmaterialstearingtheconveyorbelt.Probability.Thematerialguideskirtatthefallinghoppermakesthegapbetweentheconveyorbeltandtheconveyorbeltlargerandlargeralongtherunningdirectionoftheconveyorbelt,solvestheproblemofcoalandstonestuckbetweentheconveyorbeltandtheskirtboard,andeliminatestheconveyorbeltcausedbyit.damage.Thehopperwithalargedrophasaninternalbufferbaffletopreventthematerialfromdirectlyimpactingtheconveyorbelt.2.Addthescrapingdeviceatthedivertingroller.Ascrapingdeviceisinstalledattheredirectingrolleralongtheconveyorbelttoeliminatetheproblemofmaterialadhesionattheredirectingrollerandtosolvethelocaldamageoftheconveyorbeltcausedbythestickymaterialoftheroller.3.Improvementsonthetransitionsoftheconveyorhead,tailandintermediatetransfer.Thetransitionlengthandtransitionmodeoftheconveyorhead,tailandintermediatetransferplacehaveagreatimpactontheservicelifeoftheconveyorbelt.Reasonabletransitiondesignshallbecarriedout,andthewearoftherubbersurfaceoftheconveyorbeltshallbereducedasmuchaspossibletoensurethatthefoldingoftheconveyorbeltandtheprotrusioninthemiddledonotoccur,andnomaterialleakageoccursattheblankingplace.4.Conveyorrollerattheconcavetransition.Practicehasprovedthatthetransversestrengthofthesteelropeconveyorbeltisinsufficient.Whenstartingup,thepressurerollercausesthelocalbelttobeoverstressed,causingthebelttotear.Changingthepressurerollertoapressurerollercancompletelysolvethisproblem..5.Reducetheloadofthelargearmconveyorbelt.Theinitialservicelifeoftheboomconveyorbeltofthestackerofthecoalminesystemisveryshort.Theoverweightdesignisanimportantreasonfortheexcessivetensionoftheconveyorbeltandtheprematurecrackingandaging.Onthebasisofmeetingthetensionofthematerialscarriedbytheconveyorbelt,afterreducingthecounterweight,theservicelifeoftransportingcoalhasbeenextendedfrom1.5milliontonsto4.5milliontons.Theoriginaldesigncounterweightofthe200,000tminingsystemstackerandreclaimerconveyorbeltwas25t(includingtheweightofthecounterweightroller).Afterthesecondaryloadreductionand6tweightreduction,thedomesticordinarysteelwirebeltisused,andtheoperationvolumeexceeds8milliontons.6.Materialflowdirectionadjustment.Thematerialflowdirectionhasanimportantinfluenceontheservicelifeoftheconveyorbelt.Thematerialflowshouldruninthesamedirectionastheconveyorbelt,whichcangreatlyincreasetheservicelifeoftheequipment.7.Conveyorbeltlocaldamagerepairtechnologyprolongstheservicelife.(1)Localthermalvulcanization;thatis,thethermalfluidizationofconveyorbelts,whichisoftensaid,requiresvulcanizingmachines.(2)Partialcoldsplash,theproductsincludeGermandeeptechnologyliquidpolymercompositerepairmaterials,etc.,butneedtobecuredatroomtemperatureforabout10h;(3)Localcoldadhesion,usingGermandeeptechnologyrepairpatch(longitudinalcrack),coldViscose-T2compoundgluefillscracksinthelongitudinaldirection(requiresspecialgluegun).Thesetwomethodshavetheadvantagesoflessinvestmentinhumanandmaterialresources,betterwearresistanceandreinforcementperformance,shorterrecoverytime,andthedisadvantageisthattheyrequirehighenvironmentalrequirementsandcannotberestoredtotheoriginalsurfacerequirementsoftheconveyorbelt;(4)Conveyorbeltsprayrepairtechnology.Thistechnologymixesseveralliquidmaterialsthroughspecialequipment,spraysthemonthewearsurfaceofthebeltunderhighpressure,andspraysacertainthicknessofabrasion-resistantlayerasrequired.Shortcuringtime,suitableforlocalabrasionofcontinuouspieces,theeffectisverygood,thedisadvantageisthatspecialequipmentisneeded.8.Reasonablechoiceofbelttypeandmaintenance.Reasonablyselectthetype,adjustthecorrectiondevicealongthelineintimeaccordingtoseasonalchanges,addsunshieldsandwintermaintenancemeasurestoextendthelifeoftheconveyorbelt.9.Othermanagementissues.Strengthenthemanagementofidlerrollersandcleaners,andtimelyreplacethedamage.Controlstartwithload.

How to increase the useful life of conveyor belts

(Summary description)MechatronicsOnlineNews]Inrecentyears,asEuropeanandAmericancountries’demandforcoalplummeted,thisyear’ssouthernChinahasplentyofrain,andmajorhydropowerstationsareoperatingatfullcapacity.Ithasbecomethereasonforthedeclineincoalpricesthisyear.Atthesametime,thedeclineincoalpriceshasgreatlyaffectedtheenthusiasmofupstream-relatedcompaniestoputintoproduction,anditisparticularlyimportanttoimprovetherecyclingofresourceswithintheenterprise.Let’snottalkabouttheconveyorbelt.Ibelievethatitisabigexpenseforeverycoalminingenterprise.WhenItalkaboutithere,Iwanttobrieflytalkaboutsomeissuesaboutimprovingtheconveyorbelt,andsomeaboutimprovingtheconveyorbelt.Questionofage.哪些Whichmethodsdoyouuse?Theauthorhassummarizedafewpoints,andeveryonemaywishtolearnfromthem.1.Improvetheconveyordrophopper.Improvingthefallinghopperoftheconveyorbeltisoneoftheeffectivemeasurestopreventtheearlydestructionoftheconveyorbelt.Improvethedroppinghopperatthetransferplaceofeachbeltconveyor,sothatitsabilitytopassforeignobjectsisincreasedby2.5times.Longandlargeforeignobjectsarenoteasilycaughtbetweenthefunnelwallandtheconveyorbeltduringtransportation,reducingtheriskofforeignmaterialstearingtheconveyorbelt.Probability.Thematerialguideskirtatthefallinghoppermakesthegapbetweentheconveyorbeltandtheconveyorbeltlargerandlargeralongtherunningdirectionoftheconveyorbelt,solvestheproblemofcoalandstonestuckbetweentheconveyorbeltandtheskirtboard,andeliminatestheconveyorbeltcausedbyit.damage.Thehopperwithalargedrophasaninternalbufferbaffletopreventthematerialfromdirectlyimpactingtheconveyorbelt.2.Addthescrapingdeviceatthedivertingroller.Ascrapingdeviceisinstalledattheredirectingrolleralongtheconveyorbelttoeliminatetheproblemofmaterialadhesionattheredirectingrollerandtosolvethelocaldamageoftheconveyorbeltcausedbythestickymaterialoftheroller.3.Improvementsonthetransitionsoftheconveyorhead,tailandintermediatetransfer.Thetransitionlengthandtransitionmodeoftheconveyorhead,tailandintermediatetransferplacehaveagreatimpactontheservicelifeoftheconveyorbelt.Reasonabletransitiondesignshallbecarriedout,andthewearoftherubbersurfaceoftheconveyorbeltshallbereducedasmuchaspossibletoensurethatthefoldingoftheconveyorbeltandtheprotrusioninthemiddledonotoccur,andnomaterialleakageoccursattheblankingplace.4.Conveyorrollerattheconcavetransition.Practicehasprovedthatthetransversestrengthofthesteelropeconveyorbeltisinsufficient.Whenstartingup,thepressurerollercausesthelocalbelttobeoverstressed,causingthebelttotear.Changingthepressurerollertoapressurerollercancompletelysolvethisproblem..5.Reducetheloadofthelargearmconveyorbelt.Theinitialservicelifeoftheboomconveyorbeltofthestackerofthecoalminesystemisveryshort.Theoverweightdesignisanimportantreasonfortheexcessivetensionoftheconveyorbeltandtheprematurecrackingandaging.Onthebasisofmeetingthetensionofthematerialscarriedbytheconveyorbelt,afterreducingthecounterweight,theservicelifeoftransportingcoalhasbeenextendedfrom1.5milliontonsto4.5milliontons.Theoriginaldesigncounterweightofthe200,000tminingsystemstackerandreclaimerconveyorbeltwas25t(includingtheweightofthecounterweightroller).Afterthesecondaryloadreductionand6tweightreduction,thedomesticordinarysteelwirebeltisused,andtheoperationvolumeexceeds8milliontons.6.Materialflowdirectionadjustment.Thematerialflowdirectionhasanimportantinfluenceontheservicelifeoftheconveyorbelt.Thematerialflowshouldruninthesamedirectionastheconveyorbelt,whichcangreatlyincreasetheservicelifeoftheequipment.7.Conveyorbeltlocaldamagerepairtechnologyprolongstheservicelife.(1)Localthermalvulcanization;thatis,thethermalfluidizationofconveyorbelts,whichisoftensaid,requiresvulcanizingmachines.(2)Partialcoldsplash,theproductsincludeGermandeeptechnologyliquidpolymercompositerepairmaterials,etc.,butneedtobecuredatroomtemperatureforabout10h;(3)Localcoldadhesion,usingGermandeeptechnologyrepairpatch(longitudinalcrack),coldViscose-T2compoundgluefillscracksinthelongitudinaldirection(requiresspecialgluegun).Thesetwomethodshavetheadvantagesoflessinvestmentinhumanandmaterialresources,betterwearresistanceandreinforcementperformance,shorterrecoverytime,andthedisadvantageisthattheyrequirehighenvironmentalrequirementsandcannotberestoredtotheoriginalsurfacerequirementsoftheconveyorbelt;(4)Conveyorbeltsprayrepairtechnology.Thistechnologymixesseveralliquidmaterialsthroughspecialequipment,spraysthemonthewearsurfaceofthebeltunderhighpressure,andspraysacertainthicknessofabrasion-resistantlayerasrequired.Shortcuringtime,suitableforlocalabrasionofcontinuouspieces,theeffectisverygood,thedisadvantageisthatspecialequipmentisneeded.8.Reasonablechoiceofbelttypeandmaintenance.Reasonablyselectthetype,adjustthecorrectiondevicealongthelineintimeaccordingtoseasonalchanges,addsunshieldsandwintermaintenancemeasurestoextendthelifeoftheconveyorbelt.9.Othermanagementissues.Strengthenthemanagementofidlerrollersandcleaners,andtimelyreplacethedamage.Controlstartwithload.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2018-05-17
  • Views:81
Information

Mechatronics Online News] In recent years, as European and American countries ’demand for coal plummeted, this year ’s southern China has plenty of rain, and major hydropower stations are operating at full capacity. It has become the reason for the decline in coal prices this year. At the same time, the decline in coal prices has greatly affected the enthusiasm of upstream-related companies to put into production, and it is particularly important to improve the recycling of resources within the enterprise. Let ’s not talk about the conveyor belt. I believe that it is a big expense for every coal mining enterprise. When I talk about it here, I want to briefly talk about some issues about improving the conveyor belt, and some about improving the conveyor belt. Question of age.哪些 Which methods do you use? The author has summarized a few points, and everyone may wish to learn from them. 1. Improve the conveyor drop hopper. Improving the falling hopper of the conveyor belt is one of the effective measures to prevent the early destruction of the conveyor belt. Improve the dropping hopper at the transfer place of each belt conveyor, so that its ability to pass foreign objects is increased by 2.5 times. Long and large foreign objects are not easily caught between the funnel wall and the conveyor belt during transportation, reducing the risk of foreign materials tearing the conveyor belt. Probability. The material guide skirt at the falling hopper makes the gap between the conveyor belt and the conveyor belt larger and larger along the running direction of the conveyor belt, solves the problem of coal and stone stuck between the conveyor belt and the skirt board, and eliminates the conveyor belt caused by it. damage. The hopper with a large drop has an internal buffer baffle to prevent the material from directly impacting the conveyor belt. 2. Add the scraping device at the diverting roller. A scraping device is installed at the redirecting roller along the conveyor belt to eliminate the problem of material adhesion at the redirecting roller and to solve the local damage of the conveyor belt caused by the sticky material of the roller. 3. Improvements on the transitions of the conveyor head, tail and intermediate transfer. The transition length and transition mode of the conveyor head, tail and intermediate transfer place have a great impact on the service life of the conveyor belt. Reasonable transition design shall be carried out, and the wear of the rubber surface of the conveyor belt shall be reduced as much as possible to ensure that the folding of the conveyor belt and the protrusion in the middle do not occur, and no material leakage occurs at the blanking place. 4. Conveyor roller at the concave transition. Practice has proved that the transverse strength of the steel rope conveyor belt is insufficient. When starting up, the pressure roller causes the local belt to be overstressed, causing the belt to tear. Changing the pressure roller to a pressure roller can completely solve this problem. . 5. Reduce the load of the large arm conveyor belt. The initial service life of the boom conveyor belt of the stacker of the coal mine system is very short. The overweight design is an important reason for the excessive tension of the conveyor belt and the premature cracking and aging. On the basis of meeting the tension of the materials carried by the conveyor belt, after reducing the counterweight, the service life of transporting coal has been extended from 1.5 million tons to 4.5 million tons. The original design counterweight of the 200,000t mining system stacker and reclaimer conveyor belt was 25t (including the weight of the counterweight roller). After the secondary load reduction and 6t weight reduction, the domestic ordinary steel wire belt is used, and the operation volume exceeds 8 million tons. 6. Material flow direction adjustment. The material flow direction has an important influence on the service life of the conveyor belt. The material flow should run in the same direction as the conveyor belt, which can greatly increase the service life of the equipment. 7. Conveyor belt local damage repair technology prolongs the service life. (1) Local thermal vulcanization; that is, the thermal fluidization of conveyor belts, which is often said, requires vulcanizing machines. (2) Partial cold splash, the products include German deep technology liquid polymer composite repair materials, etc., but need to be cured at room temperature for about 10h; (3) Local cold adhesion, using German deep technology repair patch (longitudinal crack), cold Viscose-T2 compound glue fills cracks in the longitudinal direction (requires special glue gun). These two methods have the advantages of less investment in human and material resources, better wear resistance and reinforcement performance, shorter recovery time, and the disadvantage is that they require high environmental requirements and cannot be restored to the original surface requirements of the conveyor belt; (4 ) Conveyor belt spray repair technology. This technology mixes several liquid materials through special equipment, sprays them on the wear surface of the belt under high pressure, and sprays a certain thickness of abrasion-resistant layer as required. Short curing time, suitable for local abrasion of continuous pieces, the effect is very good, the disadvantage is that special equipment is needed. 8. Reasonable choice of belt type and maintenance. Reasonably select the type, adjust the correction device along the line in time according to seasonal changes, add sun shields and winter maintenance measures to extend the life of the conveyor belt. 9. Other management issues. Strengthen the management of idler rollers and cleaners, and timely replace the damage. Control start with load.

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