Nghiên cứu ảnh hưởng của sắt pyrit đến sự gia tăng entapi của than mỡ, than bùn

I S S ^ l S ^ C d N G NGHE -CHUYEN GIAO NGHIEN CUU ANH HUlDn4,G CUA SAT - PYRIT DEN Sir GIA TANG ENTAPI CUA THAN Md, THAN BUN NGUYftN VAN LAfVl Vlin /V/C KHKT Bao 1)6 Lao dong Tdm tit: Hiin than ddng vai trd quan (rpng (rong nhieu nginh cdng nghiep chO chdt tren thi gidl Nhu ciu tieu thu Ihan dang rit cao va van khdng ngdng tang len tuang lai Do dd, keo theo nganh cong nghiep khai thac than ngiy cang phit triin Nhung ben canh mat tlch cue id cung cd nhdng diem cdn ton tai tmng khai thac mi mdt so dd la hiin tuang tu ndng dan den lu chay giy mil an toin eung nhu anh hudng tdi chit Iddng san pham Nhdm nghiin cdu thuoc Vien KHKT Bao Ho Lao Bong da tiip can va thtfc hien di til "Nghiin cilu anh hddng cda SitPyrit den suting entanpi cda than md, than bdn" nhim tim nguyin nhin ciia hien tuang gdp phin glim thieu nii ro, thiet hai vi ngudi, kinh te vi mdi tnrdng Summary: Currently coal plays an imporiant role in many key industries in the world Bemand for coal Is very high and has been increasing in the future Therefore, Involve coal mining industty is growing But the positive side Is that there are also operators that exist in one of the phenomena of heat which leads to spontaneous combustion unsafe as well as affect the quality of the product The reseamh team at the National Institute of Labor Protection have access to and implementation of the 'Study of Iron-Pyrite affected In an Increase in the enthalpy of coking coal and peat," to find the cause of this phenomenon contributes to minimize losses, loss of human, economic and environmental LMOfDiU Todn t h i gid hien fieu thu khoing ty t i n Ihan hang nam Mdt sd ngSnh sff dung than ISm nguydn lieu dau vSo nhu: sin xult diSn, thdp vS kim loai, xi mang va cac loai hda Idng Than ddng vai Ird chinh san xuat didn (ttian dd vS than non), cdc s i n pham ttiep vS kim loai (Ihan cdc) Hing nam cP khoing hon 4.030 trieu tan than dupc khai thde, s l ndy dd tang 38% vdng 20 nam qua San iupng khai thac lang nhanh nhat d chau A, dd chau Au khai thac v d tie dd giam dan Cdc nude khai thac nhilu nhll khdng lap trung frdn m i l chdu luc md nam r l l rdc trdn I h l gid, nam nudc khai tiiac Idn nhat hien Id: Tmng Quic, My An Dd, Jc va Nam Phi Hlu hit cdc nudc khai thde than cho nhu ciu fidu dOng nil dja, chicd khoing 18% than cung ffng ddnh cho thj trudng xult khd'u Lupng than khai thde dupc dy bdo t d nam 2030 vdo khoang ty tan (Tmng Quic chidm khoang hon mdt nffa s i n lupng) Tai Viet Nam Iheo thing ke giai doan 2003 - 2007, san lupng fidu ttiu than tang 119,89% Dac bidt, nhu cau fidu ttiu Ihan cua Viet Nam dupc du dodn tang nhffng | B J U > H O LAO D0NG 12/2014 nam filp theo Hidn tai than Viet Nam phuc vu cho cdc hd sin xuit chinh IS den, xl mang, g i l y phdn bdn vS xult khiu Didn hien fieu thu khoang 30% s i n luong than khai thde d Vidt Nam COng vdi su bOng n l khai Ihdc than thi s l cdc vy tai nan h i m md cOng lang Idn Tmng Quic IS nffdc dffng dau I h l gid v l khai thac Ihan Ihi cOng Id nudc cd s l vu tai nan ham md lOn nhat I h l gid Trong nam 2010, 2.433 ngud da chit khai thSc than d Tmng Qudc Cd nhilu nguydn nhan d i n d i n cdc tai nan trdn, dd cd tdc ddng cOa su oxy hda d i n Idi su lu ndng, cd t h i gdy hiln tupng chSy cOa than Hiln d Viet nam m i l s l khu vuc md nhu Khe Chudi da xdc djnh cd hiln tupng ty ndng dan ddn chdy cOa than Hidn tupng tu ndng d i n d i n chdy cOa than Id van d l nhffc nhll cdng nghiep khai thde than, de dpa d i n tinh mang, tdi san cOa nhffng ngud iam vide d md than Nd cOng gdy ONMT vd ttiiet hai nghiem trpng vd kmh t l Mac ham lupng cOa edc kim loai chuyin filp (Sit - Pyrit, ) vd chit khodng, vi khuan Oian IS rat nhd, nhung k i t hpp v d mdt s l ydu t l khac dd gdy ndn hidn tupng ty npng ddn ddn chay frong qud trinh khai Uidc than Vffa qua, chung tdi da filn hanh thuc hidn dd tdi "Nghien cdu inh hirdng cda Sat-Pyrit dSn sir ting entanpi cda than md, than bun" Kit qua phSn tich nhilu xa fia X 07 mau than mS nhdm nghidn cffu phdi hpp v d Tmng tdm An todn Mo Ily tai Quing Ninh vd Thai Nguydn duoc d i n Bing vd cac Hinh - II MUC TlCU, NAI nUNG VA PHUONG PHAP NGHI!N CUU 2.1 Myc tieu nghidn cffu: Xdc djnh dupc anh hudng cOa SIt-Pyrit d i n su tSng entanpi cOa than md vS than bOn d Vidt Nam 2.2 Npi dung nghidn cffli: - PhSn tich IhSnh phin cOa mdt s l loai than md, than bdn d Viet Nam: kim loai chuyin filp (Sat - Pyrit), iuu huynh, ; - Xdc djnh Inh hffdng cOa Sat-Pyrit than dan ddn Sff tang entanpi cffa than chpn nghiSn cffu 2.3.Phuang phdp nghien cuu: - Hdi cffu vd thu thdp tu lidu v l edc loai than cP ndng tff chay d Viet Nam; - Phdn fich nhidu xa tia X (nhilu xa Ronghen) d l xdc djnh thdnh phIn Sat - Pyrit Irong mdi mau Ihan; - Phdn lich quang p h i phdt xa plasma d i xdc djnh hdm lupng sat vd mdt sd kim ioai (Cu, Mn ) vd phi kim Iff dd du dodn hdm lupng Pyrit miu than; - Sff dyng ky ttiudt nhidt Iffpng vi sai qudt DSC d l tim Inh hudng cOa S i t - Pyrit d i n su tang entanpi ,-^ Hinh 1: Gian nhiiu xa tia Xcua miu than m6 Ha Rang - 91 III KET QUA NGHI£N CI)U 3.1 Ket qua phdn tfch nhilu xa tia X: Nhom thyc hidn d l tdi da filn hdnh phdn tich nhilu xa tia X miu than d l xdc djnh cdc mdu Ihan ndy cd Pyrit hay khdng trdn thilt bi 08 ADVANCE-Bmker (Offc) cOa frudng OH KHTN Hd Ndi Bing 1: Ket qua xac dinh Pyrit 07 mau than lay tai Quing Ninh vi Thil Nguyen Hidn tuong tir Pyrit Miu ndng din den (FcSJ chay Hinh 2: Gian nhiiu xa tia Xcda miu than md Phan Mi n HSRdng-91(HR) Phin M l (PM) 618 HdngThSi(HT) Thdng Nhat (TN) Mdng Duong (MD) Khe ChSm (KC) Cd Cd _X-wv>*^v| Khdng Khdng ,ll',.,l,i, I'l,,! •' J il.J, h-t: Hmh 3: Giin dS nhiiu xa tia X cua miu thanmdSIS 12/2014 BjkO HO LAO DONcIl? E J ^ l E W c O N C NGHE -CHUYEN GIAO Hinh 4: Giin to nhiiu xa tia Xcda miu than md Khe Chim f^i^f, j /jiji, ggnhiiu xa tia X cda miu than md Thing Nhit Nhin xit: Qua Bing vd cdc Hinh -7 la thay, kit qui phdn lich nhilu xa fia X mdu than Id, bdn canh thach anh ghdp d d Dauphlnee - SiO, vd Silicon Oxit SiO,thi mau than lay tff cdc md HS RSng-91, md Phin MS va md 618 cdn cd chffa Sat - Pyrit FeS, v d c i u tnic lap phuong (cubic) vS cdc thdng s l mang iud Id a = b = c= 5,4281 A"; trdn cdc giin dd cOng cd cdc dfnh (peak) dac tmng cho FeS, tai cdc gdc 29 = 28,5°; 33°; 37"; 40,75'; 47,3°; 56,1°; 64,05° Oil v d cac mau than cdn lai khdng chffa FeS,thi trdn giin dd nhilu xa tia X d i u ktidng cd cdc dinh ddc tmng ndy Hinh 5: Giin dd nhiiu xa tia Xcua miu thanmd Mdng Duang 3.2 Ke't qua quang p h i phdt xa plasma: Vide quang p h i phat xa plasma mau than lay tff Quing Ninh vd Thdi Nguydn d l xdc djnh hdm iupng % Fe, Cu, Mn vd S dffPC thffc hidn trdn Ihilt bi quang phi phdt xa Plasma IRIS INTREPID cffa TT Piidn tich Thi nghiem Dia chat - Ting cue Dja chat Khodng sin K i t q u i quang p h i phdt xa plasma bang thilt bj IRIS INTREPID dupc ddn trcng Bing Nhin xit: Kit qua trdn Bang cho ttiay c l miu ttian lay tff cdc md Hd Rdng-91, Thdng Nhat, Hing Thdi, Khe Chdm, Mdng Duong, Phan M l vd md 618 ddu cd chffa Fe, S, Cu vd Mn v d cdc hdm lugng % id khdng gilng Cdc miu than lay tff md Hd Rdng-91, md Phan M l vd md 618 sau phdn tich nhilu xa tia X da xdc djnh thdnh phin cd chffa Pyrit FeS,, cdn frong k i t qua djnh lupng Fe vd S Hmh 6: Giin dd nhiiu xa tia X cua miu than md Hdng Thai bang quang p h i plasma da cho thay hdm lupng Fe tong miu than tff mo 618 Id Idn nhat (6,13%), sau IS miu tJ Kit q u i phdn ttch cho thdy, v d 03 mau ttian ily tff cdc md HS Rang-91 (2,38%) vd cudi cung id miu tff md Phin M l (1,25%); nhidn, hdm lupng S lai cd nhidu nhll frong mo Hd RSng - 91, md Phin M l vd md 618 IS cdc md ddu mau than tff md Hd Rdng-91 (0,5%), sau dd Id tff md 618 cd hidn tupng t i ; ndng d i n d i n chdy thi ddu cd chffa Pyrit (0,1 %) vd tff md Phin M l (0,005%) Cd sff khdc frong Cdn cdc md Hing Thdi, Thing Nhat, Mdng Dffong, l