Thong tin khoa hpc cong nghe m o V THIET KE, CHE TAO GIAN MEM GM 20/30 AP DUNG TRONG KHAI THAC VIA TRUNG BINH, DOC TREN 45" TAI CAC MO THAN HAM LO ThS Doan Ngoc Canh Viin Khoa hpc Cdng nghi Md - Vinaeomin Bien tap: TS Ta Ngoc Hdi Tom tat: Bdi viit niu kit qud nghiin ciru thiet ki, chi Igo gidn chong mim GM 20/30 dp dung khai thdc via trung binh, doc tren 45 dp tgi cdc mo ihgn ham Id Thdi gian vu'a qua, viec thir nghiem doi mdi cdng nghe khai thac md, ching 16 chg xien cheo bing gian ching m i m ZRY da dugc trien khai ap dung tai mgt s l md c6 diiu kien phu hgp vung Quang Ninh Tai Cdng ty than Hdng Thai, ap dung edng nghe budc d i u da mang lai nhirng cdng nhu: Giam chi phi d i u tu thilt bj so vdi to hgp 2ANSH; san lugng khai thae cao ban, dat g i n 90 ngan t i n / thang, nang suit lao dgng trung binh 5,5 t i n / cong; Ton t h i t than giam dang ke, ehi e6n 12,6 d i n 16,3%, eae cdng nghe trude dd, ton t h i t d i n 35% Oac biet, cdng nghe ed quy trinh khai thae dan gian, s l cong nhan ca giam, d i i u kien lam viec tit, mirc an toan cao Hien nay, mgt s l edng ty than nhu Udng Bi, Mao Khe, Mdng Duang, Nam M l u dang quan tam, ed nhu e l u ap dung cdng nghe khai thae Id chg xien cheo, chdng bing gian m i m dang ZRY cae Id chg diiu kien via d i e tren 45 do, thuan tien han ap dung bdi cac cdng nghe khae N i m bat nhu elu thye t i i n tren va vdi nang lyc kinh nghiem s i n cd v l thilt k l , e h l tao cac loai gian chdng sir dung h i m Id, Vien Khoa hpc cong nghe Md da chii ddng d l x u i t va dugc Tap doan Cdng nghiep Than - Khoang san Viet Nam giao thyc hien d l tai "Nghien eiru, thiet ke, c h i tao gian mem cd ea c l u thuy lye d i i u kien khai thae cac via than cd c h i l u day trung binh, gdc d i e tren 45°" vdi mue tieu lam chii thiet k l , c b l tao ngi dja hda gian m i m ed d l l u khiln thuy lyc, dap irng nhu c l u sir dung ciia cac dan vj san x u i t than ham Id Viet Nam Thiet ke, chi tao gian mem GM 20/30 Gian mem GM 20/30 dugc Vien Khoa hgc Cdng nghe Md thilt ke, cd tae dung ngan d i t da sup do, dam bao khdng gian lam viec an toan eho ngudi va thilt bj hoat dgng Pham vi ap dung phil hgp vdi cac via than mdng d i n trung binh, gdc d i e tu' 45° H- 75° Theo thilt ke (hinh 1), gian mem duge k i t e l u bdi cac bd phan sau: Xa dinh hucmg (hinh 2): La mdt k i t c l u duge to hgp bang phuang phap ban tir thep t i m chiu mai mdn Xa dugc Hinh Gian mim GM 20/30 Xa dinh hirong: Xa ndc: Xa pha hoa; Xa dudi: Kich dieu khien xa dudi; Cdt chdng phu; Cum tay van diiu khiin 1mm ^ _ ISO 9001 Hinh Xa djnh huo'ng KHCNM SO 2/2017 * CO DIEN - TU DONG HOA Thong tin khoa hpc cong nghe mo Hinh Xa ndc lap phia trudc eua xa ndc qua lien k i t khdp n i l true vdi xa ndc Tae dung chinh xa djnh hudng la chong da mgt d i u gian len phia guang than va dam bao cho dau trude ciia xa ndc tiep xuc va ehing giu' ed hieu qua vdi ndo Id va djnh hudng gian di chuyen Do vay, yeu c l u xa e i n cd b i n , mai mdn lam viee d l l u kien ndc 16 lli 15m, khdng bang phang, dam bao hoat dong linh hoat eiia gian Xa noc (hinh 3): Xa ndc cd k i t d u dang khung hop duge ban tu' thep k i t c l u hgp kim t h i p (thep tam, thep Ing), Tren xa cd ranh md dung d l l i p xich lien k i t gitra eae gian Oau xa cd goi dd edt de ching cot phu trg Xa ndc lien ket vdi xa pha hda nhd chit djnh vj va buldng k i t noi Xa pha hoa (hinh 4): Xa pha hda ed dang khung hop, dugc ban tir thep t i m gilng nhu xa ndc Xa pha boa mdt d i u lien k i t cirng vdi xa ndc, mgt dau lien k i t vdi xa duoi qua chit xoay dd ed the d l l u chinh gde giO'a xa nhd kieh day Tac dung cua xa pha hda la eung vdi xa ndc tao b l mat da d i t da nd rdi qua trinh chong giu' cua gian chong Xa duoi (hinh 5): Xa dudi duge ban tu' thep t i m , thep hinh Nhd kieh day n i i giO'a xa dudi va xa pha hda qua khdp n i l chit ma xa dudi duge d i i u chinh quay quanh chot pham vi nhit djnh (phu hgp vdi sy thay doi chilu day via than) Phin dudi ciia xa duoi tilp xuc vdi n l n Id, dung chan dd hinh cung d l xa duoi d l dang chuyln dgng trugt Tac dung chu y l u eiia xa duoi la: Hinh Xa pha hoa Hinh Xa duoi tri xa dudi thich irng vdi s y thay doi dg day ciia via than Thdng qua chuyen dgng cua xa dudi, cd the i l y than d phia sau Gian m i m lam viee h i m 16 vdi cac dieu kien dae biet nhu: Khdng gian lam viec chat hep, tai trgng tac dgng Idn, moi trudng lam viee ed cac y l u t l tac ddng an mdn hoa ly kim loai Do vay, cac yeu d u lya ehgn vat lieu ehe tao gian chong d n dam bao: - Ou b i n , lam viee an toan dudi tac dgng ciia tai trgng chong giii' Chju dugc tac dgng an mdn hoa ly mdi trudng lam viec ham Id; Tren eg s d phan tich vat lieu gian chong m l u dang sir dung va nghien eiru cac loai vat lieu s i n ed tren thj truang, dieu kien lam viee, kha nang ehju lyc nhdm thiet k l lya chgn vat lieu Thdng qua kich day xa duoi d i i u khien vj e h l tao k i t c l u gian chdng nhu sau: n KHCNM SO 2/2017 * CO DIEN - TU DONG HOA Thong tin khoa hpc cong nghe mo Thep k i t c l u : Sir dung thep 16Mn theo tieu ehuan thep can ndng, cirng cao, chdng mai mdn GB/T 1591-94 (Tieu chuan quoc gia Trung Quic) Thep c b l tao true chit: sir dung thep C45 theo r O C T 1050-88 (Tieu ehuan qudc gia Nga) Thep e h l tao than xilanh: Sir dung thep ST52 theo DIN 2393 (Tieu chuin quoc gia Du'e) cd ban s i n tren thj trudng Gidi ban b i n la a^ = 490 ^ 600 MPa Thep che tao d n piston: Sir dung thep S45C theo tieu ehuan JIS G 4051: 1979 (tuang duang vdi thep C45 theo TCVN 1766-75) Gidi ban ben ciia thep a^= 600 MPa Vdi cae vat lieu tren, qua tinh toan kiem nghiem, gian ching dam bao cae yeu e l u v l ben va bien dang Thiet ke gian m i m GM 20/30 dugc Cue Ky thuat An toan va Mdi trudng Cdng nghiep Bg Cdng Thuang cho phep san xuat va ap dung thir nghiem thye t l h i m Id Vien Khoa hge Cdng nghe Md da phii hgp eung Cdng ty CP Ca Mao Khe (ehl tao k i t c l u ) va Cong ty CP Cong nghiep dtd - Vinaeomin ( c h i tao eae chi t i l t thuy lyc) to chu'c san xuit, e h l tao hoan chinh 06 bg gian m i m GM 20/30, vdi cac thdng s l ky thuat dugc the hien bang Gian m i m c h i tao ed thdng s l ky thuat tuang duang gian ching eung loai eiia nudc ngoai San pham sau e h l tao da dugc k i l m djnh thir nghiem dam bao cac tieu chi b i n , an toan theo dung yeu c l u thilt k l Hien cae gian mem c h i tao da dugc dua vao ap dung thir nghiem tai Id chg 11-9-2 mire +158/+200 khu Trang Khe 11 Bude d i u theo d5i, san p h i m lam viee on djnh, cae thong so ky thuat kiem tra dap irng theo yeu d u thilt k l Cong tae theo ddi danh gia hoat dgng thyc t l ciia gian m i m hien van dang t i l p tue thyc hien Viee nghien eiru va ap dung thir gian mem GM20/30 vao thyc t l san xuit h i m Id da ghi nhan mdt budc t i l n mdi cdng tae nghien ciru thilt k l , ehe tao thilt bj chdng giir h i m 16 cua Vien Khoa hgc Cdng nghe Md va cac dan vj ea nganh, khang dinh nang Bang Dac tinh ky thuat gian chong GM 20/30 TT Ten goi Don vj Gia tri GM 20/30 Ky hieu Kich thudc xa d i n hudng mm 500 220 Kich thudc xa noc mm 800 320 Kich thuoc xa pha hoa mm 1100 320 Kich thudc xa duoi mm Chieu dai day cung Ion nhat mm 3000 Chieu dai day cung nho nhat mm 2000 Goc d i e via dp 45*75 Kich dieu khien xa duoi 10 Cot chdng phu 11 Khoang each tam giua hai gian mm 350+370 12 Tai trpng lam viec theo huccng doc via kN 650 13 Khdi lugng kg 450 14 Ap s u i t dinh mirc bom 15 Dung djch cong tac 1295 (280-320) 2100/70*370 DH23-400/110S MPa 20 Nhu hoa JAS-ANZ IQUACEH ISO ^ _ 900 KHCNM SO 2/2017* CODIES - T l DONG HOA Thong tin khoa hpc cong nghe m o wjm-'-' wmm Hinh Thir nghiem ben cum xa noc, xa pha hoa Hinh Thir nghiem bin cum xa du6i lye lam ehii edng nghe c h i tao thilt bj sir dung a Viet Nam./ nganh khai thae than h i m Id Ben canh Tai lieu tham khao: dd, viec thilt k l , c h i tao nudc san pham [1] Bao cao tong hgp k i t qua ap dung cdng gian mem cung tao dieu kien giup eho eae dan nghe khai thac Id chg xien cheo, ching bing vj san xuit ca nang cao nang lyc, due rut gian mem ZRY tai Cdng ty than Hong Thai kinh nghiem, tirng budc lam chii va tiln tdi ehii [2] Vien Khoa hgc Cong nghe Md (2016), ddng hoan toan viee ngi dia hda nhieu Thuyit minh thiit ki chi tao gian mim GM loai thiet bj khac phue vu nganh khai thac than, 20/30 khoang san Jit dd, tao them viec lam, chu dgng [3] Cdng ty TNHH thilt bj md Thanh Oiln viec cung c l p thilt bj, giam gia san Bae Kinh, Thuyit minh sir dung gian ching ZRY pham, gdp phin day nhanh han nO'a chuang trinh doi mdi, hien dai hda nganh khai khoang 20/30L Design and manufacture of flexible shield support GM 20/30 used in mining medium coal seams with the dip angle of more than 45° at underground coal mines MSc Doan Ngoc Canh Institute of Mining Science and Technology - Vinaeomin Summary: The paper refers to some research results from the design and manufacture of flexible shield support GM 20/30 used in mining medium coal seams with the dip angle of more than 45" al underground coal mines KHCNM SO 2/2017 * CO DIEN - T l DONG HOA ... tinh ky thuat gian chong GM 20/ 30 TT Ten goi Don vj Gia tri GM 20/ 30 Ky hieu Kich thudc xa d i n hudng mm 500 220 Kich thudc xa noc mm 800 320 Kich thuoc xa pha hoa mm 1100 320 Kich thudc xa duoi... Vien Khoa hgc Cong nghe Md (201 6), ddng hoan toan viee ngi dia hda nhieu Thuyit minh thiit ki chi tao gian mim GM loai thiet bj khac phue vu nganh khai thac than, 20/ 30 khoang san Jit dd, tao them... manufacture of flexible shield support GM 20/ 30 used in mining medium coal seams with the dip angle of more than 45" al underground coal mines KHCNM SO 2 /201 7 * CO DIEN - T l DONG HOA