毕业设计论文双鸭山矿业集团集贤煤矿24Mta新井设计

Keywords:miningtechnology;longwallcoalminingmethodPuttopcoalIII-1--2--2--2--2--2--2--2--2--3--3--3--3--3--4--5--6--7--7--7--7--7--7--7--7--9--10--10--10--10--11--13--13--13--13--15--16--17--18--18--18--19--19--20--21--21--23--23--23--25--25--25--25--28--30--31--31--31--32--33--33--33--33--33--33--34--34--35--37--38--40--40--41--41--41--43--43--43--43--43--44--45--47--47--47--47--48--49--49--51--51--51--51--51--52--52--52--54--54--55--56--56--57--58--58--59--60--60--60--60--61--62--62--62--62--63--63--64--68--70--71--72--73--77-综上所述，刮板输送机选择型号为：SGZ764/500，输送量1000t/h,刮板链速1.31m/s,中部槽，1500×764×290mm（2）转载机选型原则因本设计矿井排水量为m3/h，所以一台使用，一台备用，一台检修。排水主干管选用DG200mm,一趟使用，一趟备用。总结MiningprocessoftheimpactofgroundwaterAbstract:Thecoalistheourcountryprimaryenergy,accountsforabove76%intheourcountrydisposableenergyThecoalformationstratummostlyformswithrestorestheenvironment,aftercoalbedminingisintheoxidizedenvironment,afterflowstheironoreandthepitwaterandtheaircontact,passesthroughaseriesofresponseandsoonoxidations,hydrolisis,causesthewatertoassumetheacidity,formstheacidicpitwater.Andsoonhavethecertainenvironmentaleffectandthedestructiontothegroundwateraswellasotherenvironmentandthefacility.Thisarticleparaacidpitwaterharm,formedthereasonaswellastheparaacidpitwaterpreventionandthegovernmenthascarriedonthesimpleelaboration.Essentialcharacter:MiningcoalacidicpitwaterenvironmentaleffectpreventiongovernmentAbstract:Thecoalistheourcountryprimaryenergy,accountsforabove76%intheourcountrydisposableenergy.Thecoalformationstratummostlyformswithrestorestheenvironment,aftercoalbedminingisintheoxidizedenvironment,afterflowstheironoreandthepitwaterandtheaircontact,passesthroughaseriesofresponseandsoonoxidations,hydrolisis,causesthewatertoassumetheacidity,formstheacidicpitwater.Andsoonhavethecertainenvironmentaleffectandthedestructiontothegroundwateraswellasotherenvironmentandthefacility.Thisarticleparaacidpitwaterharm,formedthereasonaswellastheparaacidpitwaterpreventionandthegovernmenthascarriedonthesimpleelaboration.Essentialcharacter:MiningcoalacidicpitwaterenvironmentaleffectpreventiongovernmentForeword[onlinetranslation]：Thecoalistheourcountryprimaryenergy,accountsforabove76%intheourcountrydisposableenergy,surelymustcarryonmassiveminingcoal.Intheminingcoalprocessdestroyedtheenvironmentwhichthecoalbedlocates,originalmadeitstorestoretheenvironmentturnedtheoxidizedenvironment.Inthecoalgenerallyallincludesapproximately0.3%~5%sulfur,mainlybytheyellowironoreformexistence,approximatelycomposesthecoaltocontainthesulfurquantity2/3.Aftercoalbedminingisintheoxidizedenvironment,afterflowstheironoreandthepitwaterandtheaircontact,passesthroughaseriesofresponseandsoonoxidations,hydrolisis,theproductionsulfuricacidandthehydroxideofiron,causesthewatertopresenttheacidity,namelyhasproducedtheacidicpitwater.ThePHvalueislowerthan6pitwatertocalltheacidicpitwater.Souththeacidicpitwaterspeciallycausesthecoalminedistinctionintheourcountrypartialcoalminestobewidespread.SouthourcountrythecoalminepitwaterpHvaluegenerallyin2.5~5.8,sometimesreaches2.0.InthepHvaluelowreasonandthecoalcontainsthesulfurquantityhightohavethecloserelation.Theacidicpitwaterformationhascausedtheseriouspollutiontothegroundwater,meanwhilecancorrodedown-holeequipmentandtheconcretewallofawellandsoonthepipeline,waterpump,rail,alsotheseriouspollutionsurfacewaterandthesoil,causeintheriverwaterthefishandshrimpcertainlygeneration,thesoiltoharden,thecropswither,affectthehumanbodyhealth.AcidicpitwaterharmThepitwaterpHvalueislowerthan6namelytohavetheacidity,hasthecertaincorrosivenesstothehardware;ThepHvalueislowerthan4namelytohaveastrongercorrosiveness,hastheseriousharmtothesafetyinproductionandtheminingareaecologicalenvironment.Specificallyhasfollowingseveralaspects:Corrosioncoalminetransportvehicleandsoonmineshaftrail,steelwire.Ifrail,steelwirepHvalueSearchesputsthepHvaluelowwaterunder,ferroguinouscontrolsandthestrobewashesoutinthecurrentofwatercorrodesveryquickly,causestoturnonthewaterlosesthecontroltobringthedisaster;IntheacidicpitwatertheSO42-contentisveryhigh,certainingredientsmutuallyaffectstheproductionwiththecementintocontainwaterthesulfatecrystallization.Thesesaltswhenproductionvolumeexpansion.Afterdetermination,whenSO42-producesCaSO42H2O,thevolumeincreasesatime;WhenformsMgSO47H2O,thevolumeincreases430%;Thevolumeincreasesambassadortheconcreteconstructionstructuretobeloose,theintensityreducesreceivesthedestruction.Acidicpitwaterorenvironmentsourceofpollution.Theacidicpitwaterdispersesintotherivers,thepHnatureissmallerthan4o'clock,cancausethefishdeath;Theacidicpitwaterdispersesintothesoil,thedestructionsoilgranularstructure,causesthesoiltoharden,cropswitheredandyellow,theoutputreduces,affectstheworkerandpeasantrelations;Theacidicpitwaterhumanityisunabletodrinkuses,thelong-termcontact,maycausethepeoplehandsandfeettoburst,theeyepainitches,entersthehumanbodythroughthefoodchain,affectsthehumanbodyhealth.AcidicpitwaterformsreasonThecoalformationstratummostlyformstorestoringtheenvironment,containstheyellowironore(FeS2)thecoalbedformstostronglyrestorestheenvironment.Inthecoalgenerallyallincludesapproximately0.3%~5%sulfur,mainlybytheyellowironoreformexistence,approximatelycomposesthecoaltocontainthesulfurquantity2/3.Aftercoalbedminingisintheoxidizedenvironment,afterflowstheironoreandthepitwaterandtheaircontact,passesthroughaseriesofresponseandsoonoxidations,hydrolisis,theproductionsulfuricacidandthehydroxideofiron,causesthewatertopresenttheacidity,namelyhasproducedtheacidicpitwater.Theacidicpitwaterformsthemainreasonnamelyoccursmainchemicalreactionasfollows:1>Theyellowironoreoxidationproductiondriftsawaythesulfuricacidandtheferroussulfate:Theferroussulfateindriftsawayundertheoxygenfunctiontotransformastheironsulfate:Inpitwater,ferroussulfateoxidation,sometimesuncertainneedsulfuricacid:Inthepitwatertheironsulfate,hasfurtherdissolveseachkindofcuringmineralthefunction:Theironsulfatehasthehydrolisisintheweakacidwatertoproducedriftsawaythesulfuricacid:Ishighwhentheminepitdepthportionhydrogensulfidecontent,underthereturntooriginalstatecondition,therichsulfuracidferrouspitwateralsomayproducedriftsawaythesulfuricacid:Theacidicpitwaternaturebesidescontainsthesulfurquantityrelatedwiththecoalin,butalsowellsupwatervolumewiththepitwater,closedstate,aircirculationcondition,coalbedinclinationangle,miningdepthandarea,watergeologicalconditionandthemethodofexploitationandsoonmobilewayconcerns.Theminepitwellsupthewatervolumestably,thenthewateracidityisstable;Airtightdifference,aircirculationgood,thenwateraciditystronger,theFe3+ioncontentaremore;Otherwise,thenacidityweaker,theFe2+ionaremore;Miningdeeper,thecoalcontainsthesulfurquantitytobehigher;Miningareabigger,waterclassafterwaylonger,thenoxidizes,responseandsoonhydrolisiscarriesonfully,wateraciditystronger,otherwisethenisweak.AcidicpitwaterpreventionandgovernmentcidicpitwaterpreventionConditionandreasonformswhichaccordingtotheacidicpitwater,mayfromreducethesource,thedecrement,reduceswhenandsoonthreeaspectstocarryonthepreventionortoreduceitsharmdegree.Reducesthesource:Pickschoosestheusetomakethesourmineral,meltsharmsfortheadvantage.Thecoaloredepositmainlymakeswhenthesourmineralmixeswiththeyellowironoretuberculosisandcoalitselfcontainsthesulfurquantityinthecoalbed.Coalminingrateislow,theresidualcoalcolumnorfloatsthecoaltolosemuch,theyellowironoretuberculosisabandonsinthemineshaftpicksinthedepletionregion,issoakedforalongtimebytheponding,hastheacidwaterimportantroot.Reducestheworkingsurfacetolosefloatsthecoal,positivelypickselectstousetheyellowironoretuberculosis,canreduceproducestheacidwatermatter.Theinterceptionsurfacewater,reducesintoinfiltratesthequantity.Forexamplethebackfillgangue,thecontrolroof,preventedthegroundwaterfrontcavesinthecrevassetoplungetheolddepletionregion.Inthemineshaft,speciallytheoldwellorabandonsthesealwelllaneplace,dischargesrightamounttothepitwater,thesuppressionorkillsextinguishesthemicroorganismactiveness,orinreducedpitwatermicroorganism'squantity.Throughreducesthemicroorganismtothesulfideusefuleffect,achievesthecontrolacidicpitwaterproductionthegoal.Reduceddisplacement:Theestablishmentspeciallydrainagesystem,acentralismrowofacidwater,andretainsinthesurface,causesittoevaporate,theconcentration,butadd-onprocesses,avoidsthepollution.Thereductiondischargestheacidwaterthetime:Thereducedpitwaterinthemineshaftresidenttime,mayreducethemicroorganisminthecertaindegreetothecoalinthesulfideoxidation,thusishelpfultothereducedacidicpitwaterformation.Tocontainstheyellowironoremany,ishigh,thesurfacewaterleakageconditiongoodshallowcoalbed,orhasformedthestrongacidwatertheoldcellartoaccumulatethewaterdistrict,mustweightheadvantagesanddisadvantagesinthedevelopmentlayout,theoverallplanarrangement,doesnotgiveminingintheminepitearlierperiodorsearchesputs,waitspitwaterlaststageprocessing,avoidsdischargingtheacidwaterforalongtime.3.2AcidicpitwatergovernmentUnderthecertaingeologicalcondition,intheacidwatersulfuricacidmayhasandtheresponsewiththecalcareousrockorotherbasicmineralsreducestheacidity.Withburnsthealkalitomaketheneutralizaingagentamountusedfew,sludgeproductionalsofew,butwatertotalhardnessoftenveryhigh,althoughreducedthewateracidity,butincreaseddegreeofhardness,moreovercosthigh,alreadywasbasicdoesnotuse.Atpresent,theprocessingmethodhastakethemilkoflimeastheneutralizaingagentmethod,thelimestonefortheneutralizaingagentmethodaswellasthelimestonelimelaw,themicroorganismlawandthewetlandprocessinglaw.Themilkoflimeneutralizaingagentprocessinglawissuitablefortheprocessingacidityisstronger,wellsupawatervolumesmallerpitwater;Thelimestonelimelawissuitableforeachkindofacidicpitwater,whenintheacidicpitwaterFe2+ionareinparticularmoreissuitable,butalsomayreducethelimeamountused;Whenmicroorganismlawbasicprinciplecarriesontheoxidationusingtheferricoxidebacteriumexcepttheiron,thisfunguscanabsorbtheironfromtheaquaticenvironment,thenbyhydroxideofironformhardprecipitationwhentheirs