MATS SCHOOL OF ENGG. & TECH. RAIPUR

MINING ENGINEERING TRAINING REPORT OF RAJNAGAR R.O 5 & 6 MINE

SUBMITTED TO SUBMITTED BY Mr. BHARGAVA K. IYENGAR 1. VIJAYANT PRATAP SINGH (H.O.D. OF MINING) (ID No: MU12BEMIN015) 2. LUCKY KUMAR BHARTI (ID No: MU12BEMIN016)

INTRODUCTION

SITUATED IN SOUTH EASTERN PART OF RAJNAGAR COLLIERY AREA AND ABOUT 15 KM FROM AREA HQ RAJNAGAR RO 5&6 MINE IS LOCATED ABOUT 2 KM . NAME OF THE SEAM BEING WORKED: BIJURI RAILWAY STATION AND ABOUT 8 KM NORTH WEST OF KOTMA RAILWAY STAION.

A METALLED ROAD LINKING ANUPPUR TO MANENDRAGARH PASSAS PARALLEL TO NORTH BOUNDARY OF THE MINE . IT IS APPROACHABLE FROM RAJNAGAR TOWN BY A 3 KM LONG METALLED ROAD AND IS IN THE ANUPPUR DISTRICT OF MADHYA PRADESH .

INTRODUCTIONTHE SEAM IS THE LOWEST ONE OUT OF THE FOUR

COAL BOARING HORIZON FOUND IN THE AREA AND IS APPROACHED THROUGH A PAIR OF INCLINE NO. 5 AND NO. 6 .BOTH THE INCLINE ARE USED AS INTAKE AIRWAYS . RETURN OF THE MINE IS THROUGH THE AIR SHAFT WITH AN AXIAL FLOW EXHAUST FAN INSTALLED THERE ON.

THE MAIN STARTED PRODUCING COAL IN 1990. PRODUCTION TARGET IS MEET BY WORKING TWO PANELS A MECHANISED SDL PANEL LOADING ON CONVEYORS BELT PONIES AND A MANUAL PANEL THE COAL BEING LOADED.

THE MAIN PRODUCED 154216 Te. IN THE PROCEEDING YEAR .THE TARGET OF PRESENT YEAR IS 389420 Te. AND DURING THE CURRENT YEAR WE HAVE PRODUCED 325422 UP TO Dec. 2013

TECHNICAL INFORMATION 1. NAME OF MINE : RAJNAGAR RO

5&6 MINE 2. NAME OF SEAM BEING WORKED : 5A,7A1,6E 3. DATE OF OPENING : 1976 4. MINING LEASE AREA : 306.86HECTARE 5. SURFACE RIGHT AREA : 5.962 HECTARE 6. GEOLOGICAL RESERVES : 5MT 7. DIRECTION OF FULL DEPTH : 5.31 DEGREEEAST 8. SEAM GRADIENT : 1 IN 23 9. AVERAGES THICKNESS 2.6M

11 .NATURE OF ROOF DEPILLARING PANEL

WESTERN PART: SANDSTONE NORTHERN PART: SANDSTONE 12. NATURE OF FLOOR SHALAY SANDSTONE

13. ROCKMASS RATING (RMR) DEPILLARING PANEL

WESTERN PART : 55.14 14. ROOF CATEGORIZATION

FAIR

HISTORY SHEET OF RAJNAGAR RO 5&6 MINE GENERAL INFORMATION  NAME OF MINE :

RAJNAGAR RO 5&6 MINE. DATE OF OPENING : 1976 LIFE OF MINE : 40 Yr MANPOWER ON ROLL ON AS (01/01/14) : 1248 MANDAYS WORKED IN 2013 - 2014 : 255480 PRODUCTION IN 2013 - 2014 : 325422

 

NAME OF AGENT : SUDHIR CHOUDHARY  

NAME OF MANAGER : 1)V.R. KATHERIA 2) P.K.

VISHWAKARMA NAME OF SAFETY OFFICER : R.L. PATEL NAME OF SURVEYOR : ANAND SINGHNAME OF MINE ER. : DEEPAK BANTHIYA NAME OF SE. MANAGER : BHARAT SINGH

NAME OF VENTILATION OFFICER : S.L . RAINAME OF COLLIERY ENGG. : T.K. CHATTERGEENAME OF SE. OVERMAN : P.K. SHRIVASTAVANAME OF SE. SIRDAR : POHARI SINGHNAME OF SE. DOCTOR : S.S. RAM VOCATIONAL TRAINING

T ARGET - 180

ACTUAL - 92 ACCIDENT UPTO JAN13 TO DEC 13 :REPORTABLE -05

PART-II GEOLOGICAL AND MINE CONDITION   1.No/NAME OF SEAM BEING WORKED : 5A,7A1,6E2.NATURE OF ROOF & FLOOR : SHALAY

SANDSTONE 3.HYDRO GEOLOGICAL CONDITION OF MINE  WATER SEEPAGE FROM STRATA MAKES THE FLOOR OF

THE MOST OF MINE WET . TOTAL MAKE OF WATER IS 400 GPM TO PUMPOUT THIS MAKE THREE PUMPS OF 500GPM CAPACITY EACH INSTALLED IN MAIN DIP

PART-III  STATUS OF SAFETY , INFLAMABL E :NIL 2. HISTORY OF IGNITION OR EXPLOSIONS FIRE :NIL    HISTORY OF SURFACE FIRE :NIL   HISTORY OF UNDERGROUND FIRE :NIL   IGNITION TEMPERATURE 112DEG. C   

ROOF CONTROL SUPPORT OF ROOF BY ROOF BOLTING WHERE EVER REQUIRED BY ROPE

STICHING, COG SUPPORT LIABILITY TO BUMPS IF ANY AND THEIR FREQUENCY : NIL TYPE OF ROOF DRILLING M/C USED : HAND HOLD ELECTRIC DRILL OF 1-1/2

HP.  TYPE OF ROOF BOLT USED :TOR STEEL RIBBED 19 -22 mm 1-5 m

LONG   & BEARING PLATES. TYPE OF GROUTING MATERIALS USED : MICON ENGG. CALCUTTA   MAKE & NO. OF ANCHOR TESTING MACHING USED : NIL TYPE OF STEEL SUPPORT USED AND REASON FOR PREFRENCE.  PIT PROPS : AS CONVENTIONAL PROP AND AS NOTCH PROPS BELOW

GIRDERS TATA CHOCKES : AS CONVENTIONAL COG AND FOR GOAF EDGE

SUPPORT 

PART-IV   VENTILATION FAN

TYPE, CAPACITY AND WATER GUAGE OF THE TYPE PV -160 MAIN MECHANICAL VENTILATOR MENTION CAPACITY -3500MCUBE /min AND H.P.OF MOTOR W.G. -19 H.P. -90 2. ARRANGEMENT REVERSAL POWER CABLE : PROVIDED BY

ARRANGEMENT OF DOORS   3. AVAILABILITY OF EQUIPMENT FOR VENTILATION SURVEY. : ANEMOMETER : VANE

TYOE -02 : DIGITAL -01 : HYDROMET :METHANOMETER

STRATA CONTROL SYSTEM & ORGANISATION   GEOMINING CONDITIONS:  NAME OF SEAM BEING WORKED : 5A , 6E , 7A1  WORKNG THICKNESS :2.4 TO 3.0 m  METHOD OF WORKING :BORD & PILLAR (DEV) &DEPILLARING  GALLERY SIZE :4.2 TO 2.1 m  PILLAR SIZE : 25 X 25m  COVER : 70m TO 110 m  ROOF : FINE TO MEDIUM GRAINED SAND STONE  FLOOR : INTER BENDED FINE TO MEDIUM GRAINED,

SAND STONE WITH LENTICALS OF

COAL & CARD SHALE OCCURRENCE OF SLIPS , CLEAVAGE , PLANES , FAULTS , FISSURES ,

COAL STREAKS ,

SYSTEMATIC SUPPORT RULES /SUPPORT PLAN :  SUPPORT OF FRESHLY EXPOSED ROOF WITHIN 10m OF DEVLOPMENT

PANELS FRESHLY EXPOSED ROOF OF EITHIN 10m WILL BE SUPPORTED BY FULL COLUMN GROUTED ROOF BOLTS WITH INORGANIC CEMENT CAPSULES OR WITH TIMBER /PROPS/PIT PROP AT A DISTANCE OF 1.2 m IN SAME ROW AND 1.2m BETWEEN TWO ADJACENT ROWS OR WITHCROSS BARS AT 1.2m OR ROOF STITCHING AT A DISTANCE OF 1.2m WITH ONE OR TWO DOWELS 1.2m APART

THE LAST ROW OF SUPPORT SHALL NOT BE MORE THAN 1.8

FROM THE FACE AND SHALL BE AS CLOSE TO THE FACE AS POSSIBLE . 

VENTILATION THE VENTILATION OF THE MINE IS BEING PLANNED WITH THE

VIEW OF SAFETY & ECONOMY OF WHOLE OF THE MINE. THE MAIN MECHANICAL VENTILATOR EXHAUST FAN INSTALLED ON SURFACE AT AIR SHAFT. INCLINE NO. 5 & 6 ARE SERVING AS THE MAIN RETURN .

THE VENTILATION STOPPINGS AND AIR

CROSSINGS HAVE BEEN AND BEING MADE AND MAINTAINED . LEAKAGES ARE BEING CHECKED AND MINIMISED .

THE EFFECTIVE TEMPERATURE INALL THE DISTRICT IS BEING MAINTAINED AROUND 25DEG C.

 

THE DETAILS OF MAIN MECHANICAL VENTILATOR ARE AS FOLLOWS . MAKE : VOLTS PV 160  MOTOR: : 90 HP   TYPE : AXIAL FLOW FAN ,

EXHAUST   QUANTITY : 3500m3/minutes

PRESSURE W.G. : 19mm  DIAMETER OF IMPELLER : 1600mm   NO. OF IMPELLER BLADES : 08 Nos.  F AN SPEED : 780 RPM  

POWER SUPPLY & DISTRIBUTION   AT SURFACE SUB STATION OF RAJNAGAR R.O. 5/6 MINE. 3.3KV ARE

RECEIVED AT 600Amps OBTAINED FROM SURFACE SUB STATION OF RAJNAGAR TRANSMITTED THROUGH A400 Amps. TO SURFACE TRANSFORMER OF 500 KVA AND TO THE UG 600Amps. AT SUB STATION .

  FROM SURFACE TRANSFORMER 550 volts ARE FED TO :- SURFACE BELT . MAIN MECHANICAL

VENTILATOR . HAULAGE . MAIN DIP OF UG PUMP SAW MACHINE AND LIGHTING TRANSFORMER  

FROM 600Amps OCB AT O LEVELS SUB STATION 3.3 KV ARE TRANSMITTED TO KVA TRANSFORMER THERE ITSELF AND THROUGH 400 Amps ACB TO THE TRANSFORMER OF 315 KVA AT 15 LEVELS SUB STATION TO THE 22 RISE SUB STATION IN P9 SDL PANELS AND TO 15 RISE/3 LEVELS SUB STATION IN P5MANUAL PANEL.

   FROM 315 KVA TRANSFORMER AT O LEVELS 550 volts ARE FED TO: - LIGHTING TRANSFORMER   GATE BELT LEVELS AND ALL WORKING LEVELS PONY CONVEYORS

.

O LEVELS PUMP AND ALL OTHER PUMPS  RISE & 2 LEVELS ENDLESS HAULAGE

FROM 315 TRANSFORMER AT 15 L SUB STATION 550 volts ARE FED TO:-  7A GATE BELT CONVEYORS.  MAIN DIP / 17 AND 5A LEVELS PUMP   2 LEVELS ENDLESS .  LIGHTING TRANSFORMER   

FROM 315 KVA TRANSFORMER AT 22 RISE/9L 550 volts ARE FED TO :- 

30 RISE AND 33 RISE PONY BELT CONVEYORS .  SWITH GEAR PANELS OF AL FOUR SDLs UDM MACHINE PUMPS  DRILL PANELS & DRILLING MACHINE LIGHTING TRANSFORMER .

FROM 315 KVA TRANSFORMER IN 15 RISE /2 LEVELS SUB STATION 550 volts ARE FED TO :- SWITH GEAR PANELS OF 432 NO. SDL. TUGGER HAULAGE OF 32 RISE . FACE PUMP OF 16L/20D AND 4AOF 3L/2D  DRILL PANELS

ELECTRICAL LAYOUT IS SHOWN IN SEPERATELY :

SURFACE MACHINERY  LIGHTING LOAD :TRANSFORMER CRAMP ----5KVA   BAND SAW M/C : 5HP  DIRECT HAULAGE :50 HP TRUNK BELT : 120 HP LATHE M/C : 03 HP 

 

UNDERGROUND MACHINERY

DRILLS :1.5 HP   HAULAGES ENDLESS : 50   DIRECT HAULAGESS : 50   PUMPS :120 CONVEYORS , GATE :120   LIGHTING LOAD :5KVA

USE OF EXPLOSIVES

ONLY APPROVED TYPE OF SHOTFIRING IS USED . TYPE OF EXPLODER : SUPERCOAL 5 NUMBER SHOT FIRING CABLE : TWIN CORE 4/0.91

sq/inchPRESCRIBED SHOTFIRING TOOLS : PROVIDED . RESERVED STATION : PROVIDED AND

MAINTAINED

ALL ACTION OF SAFETY DURING BLASTING / SHOTFIRING : PRECAUTION ARE TAKEN

 MAGAZINE TYPE : PORTABLE

TYPE  

TRANSPORTATION OF COAL & MATERIALS  FROM DEV. PANEL COAL LOADE D BY SDLs

ON CONVEYORS POINTS IS TRANSPORTED OUT BY THROUGH GATE BELT CONVEYORS AND TRUNK BELT CONVEYORS TO SURFACE BUNKER PANELS.

TRANSPORTATION LAYOUT IS SHOWN IN A SEPARATE LEAF WHICH FOLLOWS.

DISCRIPTION RAJNAGAR 5/6 MINE IS A UNDERGROUND MINE AND THE SEAM IN WHICH THE

DEVELOPMENT AS WELL AS DEPILLARING METHOD IS GOING ON. RAJNAGAR MINE WAS STARTED ON MARCH 1976 AND AT THE TIME OF SURVEY ITS AGE IS ESTIMATED 35 YEAR . BUT THE PRODUCTION FROM THE 5 & 6 MINE IS STILL IN PROGRESS. RAJNAGAR 5/6 MINE IS 9KM FROM BIJURI RAILWAY STATION. RAJNAGAR 5/6 MINE IS IN SHALLOW DEPTH . SO THE INCLINE OPENING METHOD IS ADOPTED. IN THE INCLINE OPENING THERE IS TWO PATH ONE FOR THE IN AND OUT OF MAN POWER WHICH IS CONNECTED TO THE INCLINE AND THE SECOND IS THE INCLINE ITSELF WHERE THE TRANSPORTATION OF MATERIAL TAKE PLACE WITH THE HELP OF HAULAGE TRACLINE MADE FOR MATERIAL TRANSPORTATION . THE TRANSPORTATION OF MATERIAL INCLUDE HEAVY MACHINERY i.e. SAND ,BRICK , WIRE, etc. WHICH ARE USEFUL AND VALUABLE FOR THE MINE . THE TRANSPORTATION ARE DONE WITH THE TUBS . THE TUBS USED FOR THE TRANSPORTATION ARE OPERATED BY THE ROPE WHICH PULL THE TUBS BY THE ELECTRICALLY OPERATED MOTER ON WHICH THE ROPE IS WOUNDED IN A ROUND . IN THE RAJNAGAR 5/6 MINE WHEN WE ENTER INSIDE THE MINE THEN THE FLOOR THE SEAM AT THE RIGHT SIDE OF THE HAULAGE THERE IS A PUMP ON WHICH ALL THE WATER OF THE MINE IS STORED AND THEIR IT IS PUMPED OUT . IF WE PROCEED FURTHER IN STRATED WAY THEN THE HAULAGE IS DIVIDED INTO TWO PATH RIGHT PROCEED TO THE DEVELOPMENT AND LEFT TO THE DEPILLARING FACE. AT THE DEVELOPMENT SIDE THE DEVELOPMENT PROCESS IS IN PROGRESS BY DRILLING AND BLASTING METHOD.IN ADDITION TO THAT THE CONSTRUCTION OF HAULAGE AS WELL AS SUPPORT AND OTHER ELECTRICAL CONNECTION ARE DONE . THE TRANSPORTATION OF THE COAL IS DONE WITH THE HELP OF SIDE DISCHARGE LOADER (SDL) IN WHICH THE COAL IS LOADED AND DISCHARGED TO THE TUBS FROM WHERE IT IS TAKEN TO THE TIPPLER WITH THE HELP OF ROPE OR DIRECTLY TRANSPORTED TO THE CONVEYOR BELT FROM IT IS TAKEN TO THE SURFACE AND LOADED TO THE TRUCKS AND TRANSPORTED TO MAIN VEHICLE i.e. RAILWAY TUBS FROM WHERE IT IS TAKEN BY THE POWERPLANT.

 

THANK- YOU