
chait (khanan)

20veen shatabdi key poorvaardh mein seesa-jastaa khanan key saath seesa-jastaa milling sanchaalan mein aswikar kiye gaye silicius chattan, choona patthar aur dolomite apashisht key tukade hain. madhya paschimi sanyukt raajya mein aitihaasik seesa aur jastaa khanan dou pramukh kshetron mein kendrit thaah dakshin-paschimi misauri, dakshin-purvi kansas aur poorvottar oclahoma kii tulanaa mein tri-raajya kshetra aur dakshin-purvi misauri mein lagbhag purana seesa kshetra. pahala darj khanan lagbhag 1742 mein puraane seese key kshetra mein huaa. 19veen shatabdi key madhya key dauran tri-raajya kshetra aur puraane seese key kshetra donon mein utpaadan mein kaafee vriddhi hui aur 1970 taka chalaa.
safai karein.
vartamaan mein utpaadan abhee bhee dakshinpurvi misauri mein teesare kshetra, vibernum pravritti mein hotaa haye. khanan aur ayask milling seey tri-raajya kshetra mein 50 karod tunn seey adhik apashisht aur puraane seese vaale kshetra mein lagbhag 25 karod tunn apashisht kaa utpaadan hotaa haye. iss kachare kaa 75 pratishat seey adhik hissa hataa diyaa gayaa haye, jisamen seey kuchh kaa upayog varshon seey kiya jaa rhaa haye. aaj, lagbhag 10 karod tunn chait tri-raajya kshetra mein bunny hui haye. ee. pee. aeye., oclahoma, kansas aur misauri key raajya, sthaaniya samudaay aur niji companiyan karyanvayan aur nigrani mein ack saath kaam karna jaari rakhti hain.
seesa, jastaa, cademium aur anya dhatuon seey dooshit shesh khadaan apshishton seey utpann sambhaavit pratikool prabhaavon koo cumm karane yaa hataane vaali pratikriya kriyaaen.
ayask prasanskaran.
ayask utpaadan mein chattan koo peesane aur peesane key liye maanak aakar aur ayask koo alag karna shamil thaa. ayask prasanskaran yaa tou ack shushk gurutvaakarshan prithakkaran mein yaa ack geele dhone yaa floatation prithakkaran key madhyam seey puuraa kiya gayaa thaa. shushk prakriyaon ney ack maheen bajari apashisht kaa utpaadan kiya jise aamtaur parr "chait" kahaa jaataa haye.geeli prakriyaon key parinamswarup ayask alag honey key baad apashisht samagri key niptan key liye upayog kiye jaane vaale poonchh vaale talabon kaa nirmaan huaa. geele seey nikalane vaalaa kachra
alag karna aam taur parr rait aur gaad kaa aakar hotaa haye aur inhen "tellings" kahaa jaataa haye.milling seey badey chant apashisht dher aur sapaat kshetra paida hotey hain jinamen poonchh jamaa hoti haye. tailing mein aam taur parr bhaari dhatuon kii uchch sandrata hoti haye aur isaliye seedhe sampark key madhyam seey maanav swaasthya aur paryaavaran key liye adhik jokhim prastut kartaa haye. chait aamtaur parr 1/4 seey 5/8 inch taka key vyaas mein hoti haye. rait jaisi mishrit samagri
maap 0.033-0.008 inch vyaas aur maheen poonchh vyaas seey cumm hoti haye.
upayog karein.
halanki jaharile, chait kaa upayog burf seey dhaki sadakon parr karshan mein sudhaar key liye kiya jaa sakata haye; bajari key roop mein; aur nirmaan key roop mein, mukhya roop seey railroad ballast, rajmarg nirmaan aur concreet utpaadan key liye.

