training report of a u/g coal mine

8/10/2019 Training Report of a U/G Coal Mine

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1.INTRODUCTION

1.1GENERAL INFORMATION

Name of the Mine : RAVINDRAKHANI No.5 INCLINE

Location of Mine : Mine code: 010025 Post: Srirampur

Pin: 504303 Area: Srirampur

Surface Area : 3.06 sq.km

Total Estimated Reserve : 13.218 MT (GEOLOGICAL)

11.235 MT (EXTRACTABLE) @85%

Life of the Mine : 39 Years

Average Monthly output : 34500 Tonnes

1.2 MINE LOCATION

The RK 5 Incline located in the north central part of Somagudem-Indaram coal belt closelyto the north of Mancherial Chennur highway NH-16 and covers an area of 3.06 Sq.Km. The

block is lying between latitude N 18 0 51 53 to N 18 0 52 0 48 and longitude E 79 0 30 41to E 79 0 31 24. The block is covered by Barakar/Barren measure formation.

1.3 GEOLOGICAL INFORMATION

23 metres to 40 metres up through Flat plane running from North to South with an acuteangle separating the seams lying in Sector A and Sector B causing some seams coming in

same origin and some are closer together.

RMR Values:


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Sl.No Seam RMR Value Section/place Where

RMR Undertaken

1 1A 46 1DS/33L

2 1S 47 3DS/30L

3 2B 59 1RS/22L

4 2S 62.1 23DS/26L

5 2 57.6 5RS/35L

6 3 56.7 24RS/21L

7 4 53.6 27LN/MWD

8 5 59.4 23DN/21L

MINE DETAILS

Name of the Mine : RAVINDRAKHANI No.5 INCLINE

Date of opening of the mine : 04-04-1974

Production started : 1976-1977

Total Estimated Reserve : 13.218 MT (GEOLOGICAL)

11.235 MT (EXTRACTABLE) @85%

Total Numbers of Seam : 8

Number of Workable Seam : 5

Number of Seams being worked : 4

Minimum Depth of Mine : 30m

Maximum Depth of Mine : 320m

Average Inclination of Mine : 1 in 4

Average Dip of Seams : 1 in 4

Direction of Seam : N 63 015 00 E

Grade of Coal : E

Manpower : 2100


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SEAM DETAILS:

S.No. SEAM Thicknessin 'm'

Partingin 'm'

Thicknessof extn.

Depth inm.

Min. Max

Grade

1 1A 5.20

20.00

40.00

12.00

25.00

35.00

11.00

12.00

4.50 50 160

F

2 1S 4.5 2.40 32 240

F

3 2B 0.9

1.40 45 60

F

4 2A 1.60

1.60 48 220 E

5 2 4.8

4.50 45 300 E

6 3 1.2

1.60 44 144 F

7 4 1.7

1.70 40 286 D

8 5 1.7 1.70 35 300 E

STATUS OF MINE(MAY-2014)

Ravindrakhani No. 5 mine is an underground mine using Bord and Pillar mining method forextraction of coal and is currently in depillaring stage, whole mine is already developed.Total four seams are being worked. Depillaring is done using blasting and caving methodaccompanied by SDL.

Currently there are 11 SDL out of which 7 are working and 4 south seam is ofconventional mining.


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MACHINERY

DRILLING:-

Type of Drilling : Hand held Electric Rotary Drill

Motor : 1.1 Kw (Squirrel cage induction motor)

Length of Drill rod : 5 ft.

Diameter of Drill rod : 32 mm

Type of Bit : V

Energy Source : Electrically operated

Drilling Rate : 1.2m/min

Two to Three persons are required for drilling holes.Motor is flame proof and weight of drillis about 21kg.External fan is given for cooling.

PUMPING ARRANGEMENTS:

S.No. H .P/KW Place Range H ead

1 190 X 2 5S/26L 230M 198 M

2 75 X 2 5S/30L/3D 150M 53M

3 75 X 1 4S/15D/38L 150M 80.5M

4 75 4S/18D/38L 150M 80.5M

5 75 2S/2D/38L 150M 60M

6 75 2S/1D/46L 150M 73M

7 40 2S/MWD/45L 80M 5M

8 15 1S/3D/30L 45M 10M

9 15 2S/3D/49L 45M 26M

10 15 2S/X-Cut/50l 45m 12M

11 15 2S/1D/38L 45M 10M

12 15 2S/6D/51L 45M 11M


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S.No. H .P/KW Place Range H ead

13 5 2S/12D/37L 45M 10M

14 15 Surface 45M 15M

Make of Water (GPM) : 600 GPMQuantity of water to be discharged onto the Surface : 600 GPM Overall HP/KW of the mine : 2942 HP Working : 2520 HP

TRANSPORTATION:-

For men : Man Riding

For coal : Belt conveyor (inside the mine)

Direct Rope Haulage (on the surface)

Man Riding:

Driving sheave diameter : 1550 mm

Return sheave diameter : 1480 mm

Speed : 0-3 m/s

Gradient : 1 in 4

Maximum Pulling Force : 17.42 KN

Working pressure : 200 bar

Tunnel Width : 4.2 m

Tunnel Height : 2.5 m

Haulage rope for man riding :

Rope Diameter : 16 mm

Type : Lengthslay

Construction : 6-Strand

Core : 7-Wire RHL

Breaking Force : 167 N

Weight per Meter : 0.915 kg/m


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HAULAGE:

For 87HP hauler:

Tare weight of tub : 0.85 tonnes

Coal weight per tub : 1.6 tonnes

Gross weight of loaded tub : 2.45 tonnes

Rating of the motor : 87 HP

Weight of rope : 2.238kg/m

Length of incline : 415m

Gradient : 1 in 4

Coefficient of rope friction : 1/10

Coefficient of tub friction : 1/50

Speed of rope : 7.2KMPH

Other Hauler details:

S.No. H P/KW Place L ength Gradient

1 150 HP Surface 5A Incline 565 M 1 in 4

2 150 HP MID /12L - 2S 758 M 1 in 4

3 87 HP Surface 6 Incline 1102 M 1 in 4

4 40 HP 23R/20L - 2SN 216 M 1 in 4

5 40 HP 18R/14L - 2SS 220M 1 in 4

6 40 HP 6D/33L 216M 1 in 4

7 40HP 1D/21L Endless 1200 M Level gradient

8 40 HP 2ASN/1Dip Endless 420M Level gradient

9 40 HP 2S/MID/36L Endless 350 M Level gradient

10 40 HP 2S/2D/42L Endless 270M Level gradient

11 40 HP 1D/42L 216M 1 in 4

12 40HP 3D/43L 216M 1 in 4


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S.No. H P/KW Place L ength Gradient

13 40HP 5D/45L 216M 1 in 4

14 40HP X-Cut D/50L 206M 1 in 4

15 35 HP 2D/42L -Ret.tunnel. 20M 1 in 416 35HP 2D/29L-1S 144M 1 in 4

17 35HP MID/28L - 1S 216M 1 in 4

18 40HP 12D/34L - 2S 120M 1 in 4

Safety measures in haulage track:

Retarders

Rerailers

Backstay

Direct Rope Haulage is being used and tubs are attached by hook couplingarrangement.This is used to take out coal from mines and also for transportingmaterial to inside the mine.

35 HP, 87 HP, 100 HP & 150 HP capacity haulage is being used.

WINDING DRUM:

Type of drum : Cylindrical drum

Drum diameter : 2.6 m

Type of Rope : Locked coil rope

Drum capacity : 1525 m

Diameter of rope : 26 mm

Rope speed : 8 kmph

Frictional pulley mounted on a pillar is used a head gear arrangement.


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VENTILATION:-

Type of Fan : Exhaust fan

No of blades : 10

Diameter of fan : 2.95 m

Fan RPM : 578

Shaft diameter : 4.8 m

Shaft depth : 5.4 m

Blade angle : 20

Drift angle : 120 0

Sl.No. Type of fan /M ake Capacity inCu.m/min.

Waterguage

KW ofmotor

Remarks

1 Axial Flow 300HP Fan/ MMM 10300Cu.m. 50MM 225 Main Fan

2 Axial Flow 200HP Fan/Voltas 6000 Cu.m. 23 MM 150 Standby Fan

3 Axial Flow 100HP Fan/Voltas 2570 Cu.m. 23 MM 75 Standby Fan

Air lock doors are being used at every fan drift.Stoping are made inside mine to divertair as per our requirement.

Particulars of mechanical ventilators (auxiliary & booster fans)installed below ground

Sl.No L ocation Type of fan Booster orauxiliary

Capacity

1 X-Cut D/51LS Forcing Auxiliary 20 HP

2 51LS/9Dip Forcing Auxiliary 20 HP

3 MID/42L H-Tun. Forcing Auxiliary 20 HP

4 50LS/10D Forcing Auxiliary 20 HP

5 2D/42L-R-Tun. Forcing Auxiliary 05 HP

6 1AS-Tunnel Exhaust Auxiliary 20 HP

7 MIR/25LN(1Seam) Exhaust Auxiliary 05 HP


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Shaft Detail:

Sl.No Nu mber /name ofthe shaf t

Di ameter Depth Worki ngs of dif ferentseams conn ected wi th

the shaf t

Purpose

1 Air shaft 5.48M 41.8OM 4 & 5 Seams ventilation

DUST:

Source of Dust : Blasting, moving vehicles, transportation of coal

Measurement of dust : APM 550 dust sampler

Control measures : Water sprinkler for dust suppression


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A. The machine should be fitted with wide track shoes and extra large tracks forensuring stability and low ground pressure that enables the machine to negotiategradients upto 1 in 4 and cross gradients 1 in 6 . The machine should be fittedwith grouser track pads and track should be suitable for working in severeunder ground conditions.

B. The tracks should be hydraulically powered through suitable hydraulic motors &reduction gear boxes. Each right and left tracks should be independentlypowered.

C. Fail safe brake should be provided for the tracks so that the machine will standeven in the inclined position in the gradient of 1 in 4.

D. Turning of the machine should be done through independent drives for tracks, byblocking or reverse rotation of crawlers.

E. The speed of the machine should be smoothly controlled by hydraulic controlvalve. Zero to Maximum speed should be obtained by operation of controllevers with less effort. The speed of the machine should be same in both thedirections of the travel.

F. All track parts of the machine should be guaranteed for minimum working of3,000 Hrs.

Loading Boom & Bucket :

G. The machine should be equipped with loading boom and 1.0 Cu.M bucket forcollection of coal from the face, carry and unload on to a coal tub / Chain or beltconveyor . The height of the boom should be suitable to unload coal into tubs upto a height of 1.5 M.

H. The side discharge chain bucket should be bi-directional, suitable to unload coalfrom either sides of the machine. The chain should be double out board, fittedwith suitable flights, hydraulically powered with suitable hydraulic motor.

I. The attachment and detachment of the bucket for changing the direction ofunloading should be quick and easy. It should be carried out easily at the coal

face. J. The break-out force of the machine should be around 4500 Kgs for Std-height

around 3000 Kgs for LH SDL enabling the machine to fill the bucket in onestroke.

K. The boom should be fitted with suitable hydraulic cylinders for lifting ad rollingback.

L. All the operation of the loading boom and buckets should be through hydrauliccontrol valves. The loading boom & bucket should be guaranteed for the life of

the machine.


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3.DETAILS ABOUT SDLs:( SIDE DISCHARGE LOADERS)

INTRODUCTION

With the changing scenario of modernization it has become necessary to modernizeCoal Mining in SCCL. At present most of Underground mines in SCCL have gonein to more than 200 mt to 300 mt depth. To reduce the physical fatigue of the CoalFillers who are being exposed to the freshly exposed faces, it is proposed tointroduce intermediate Technology. SDL is one answer. At present about 100SDLs are working in SCCL .

The SDL machines being utilized are Track Mounted Electro Hydraulically Operated,Side Discharging Bucket Loaders. These Loaders collect Coal from Coal Face and

discharge it on to Belt Conveyors / Tubs. These machines can work on 1 in 4gradients at maximum speed of 2.75 KMPH .

DIFFERENT MODELS OF SDLS

In SCCL two companies have supplied their machines M/s Eimco Elecon (I) Ltdand M/s Simplex Engineering Corporation.

1. Eimco Models :

SDL 625 with Cable Reeling SDL 625 with out Cable Reeling

SDL 611 Low Height

2. Simplex Engineering Co Models :

D113 / 1000 with Cable reeling

D137/1000 Low Heigh Machine

3. M/s BEML also developed one SDL and woking at GDK 10A under trial basis.


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SPECIFICATION OF SDL:(STANDARD HEIGHT ):

Slno

Make Eimico Elecon (India) Ltd. Simplex Engg .Works&Foundary works

1 Model 625 D 113/1000

2 OverallLength

4216 mm +850 mm 4816 mm

3 Maximumlength

1778 mm 1825 mm

4 Dumping

Height

2300 mm 1515 mm

5 MachineWeight

8450 Kg +750 Kg 8900 Kg

6 ElectricMotor

65HP,550V,3ph,50C/s,1470Rpm,Air Cooled FlagedMounted,FLP type SquirrelCage Induction Motor

65HP,550V,3ph,50C/s,1470Rpm,Air Cooled FlagedMounted,FLP type SquirrelCage Induction Motor

7 TrailingCable

25 Sq.mm,FT -4/6 Type 5 Core 25 Sq.mm,FT -4/6 Type 5 Core

8 PilotVoltaage

7.5 V/12 V Rectified With HalfWave Rectifier By 127 Diode

7.5 V/12 V Rectified With HalfWave Rectifier By 127 Diode

9 LightingVoltage

24/12 V DC 24 V DC

10 A.V AlaramVoltage

12 V DC 12 V DC

11 HydraulicPump

3 Stage Gear Type 93 lpm (lefttraction) 93 lpm (right

traction) 58 lpm +27lpm(Bucket service +cable

reeling

3 Stage Gear Type 105 lpm(left traction) 105 lpm (right

traction) 105 lpm(Bucketservice +cable reeling


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12 Cagingheight

1790 mm 1900 mm

13 TractionHydraulic

Motor RPM

300

14 TractionSporketsRP

M

30

15 TrackWidth/Track

Pad

330 mm 350 mm

16 Track PadWidth

150 mm aprox. 170 mm

17 MachineMax Speed

2.59 KMPH 2.75 KMPH

18 BucketType

Chain conveyer Type Chain conveyer Type

19 BucketCapacity

1 cu.M/1 Tonnes 1 cu. M/1 Tonnes

20 Break out

Force

3629 kg 4500 Kg

21 Lifting time 4 sec 4 sec

22 Loweringtime

3 sec 3 sec

SPECIFICATION OF SDL:(LOW HEIGHT ):

Make Eimco Elecon (India) Ltd. Simplex Engg. Work &foundary works

1 Model 611 D 137/1000

2 Over all Length 5509 mm Carry on position 5444 mm

3 Maximum Width 1770 mm 1700 mm

4 Caging Height 1350 mm


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5 Dumping Height 1454 mm. Max 1481 mm Max

6 Machine Weight 9700 Kg 8900 Kg

Lighting Voltage 24 V AC 24 V AC

A V AlaramVoltage

12 V DC 12 V DC

Hydraulic Pump 4 Stage Gear Type,71 lpm (lefttraction),71 lpm (right traction),71

lpm (Bucket traction),27 lpm

Triple Tandem Gearpump 105 lpm (left

traction),105 lpm(righttraction),105 lpm

(Bucket Services +Cable Reeling)

Radiator fanspeed

2200 RPM 2200 RPM

Filter for handpump

20 microns 20 microns

Breaking OutForce

4854 Kg 4500 Kg

How to start the machine?

1.Ensure gear oil level and hydraulic oil level.

2.Ensure the incoming cable is locked into the isolator socket.

3.Turn the Isolator Control / Dump Valve to ON position.

4.Press down the Foot Switch and keep in this position.

5. Press Start Button on the Push Button Station which startsElectric Motor.

NOTE: The Foot Switch acts as Dead Man Switch which must be depressed tooperate the machine otherwise the machine stops. To start the machine points (3),4) above shall be repeated.

How to operate the machine?

There are SIX Control levers apart from the Dump Valve on the Machine.

Traction Bucket Services PowerTakeOff /Standby

Left Right Left Middle Right


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Item Operation Function

Traction

Both levers Push Machine moves in forward direction Pull Machine moves in reverse direction

Left lever only Push Machine turns to right in forward

Pull Machine turns to right in reverses

Right lever only Push Machine turns to left in forward

Pull Machine turns to left in reverse

Bucket Services Left Push Bucket lowers

Pull Bucket raises Middle Push Bucket rolls on

Pull Bucket rolls back Right Push Bucket Door opens - coal gets discharged

Pull Bucket door closes.

NOTE:

All SIX control levers are self centered by means of springs and the speed ofoperation is directly proportional to the amount of the movement of the controllevers.

When the machine is not being used these control levers are to be locked withthe lock levers to prevent the accidental movement of the same.

BUCKET:

It is fitted with one fixed plate on one side and hinged door on the other side toenable it to discharge on one side only and the coal can be discharged on the otherside by reversing the arrangement and it is also fitted with a conveyor chain whichwill be driven by the hydraulic motor.

LOADING AND DISCHARGING

As the machine having sufficient weight and adequate power, DO NOT make along run at the muck pile.

Hence, dig the bucket into the muck pile and move the machine forward side bypushing the traction control levers gently as required.


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As soon as the machine stalls, roll back the bucket and again move forward tocontinue to collect the coal. Maintain the rolling and thrusting operation until thebucket is full and clear off the muck pile, raise it to the carry on position.

Position the loader for discharge:

Efficient loading depends on the closeness of the discharge point to the muckpile. The machine travels back a minimum distance with minimum ofmaneuvering .

DO NOT STALL THE MACHINE FOR MORE THAN A SECOND OR TWO TO AVOID UNDUE HEATING OF THE HYDRAULIC FLUID.

SIMILARLY, DO NOT STALL THE HYDRAULIC RAMS BEYOND THEIR LIMITSFOR MORE THAN A SECOND OR TWO OTHER WISE, THE HYDRAULICFLUID GETS HEATED UP.

THE ABOVE OPERATIONS LEAD TO PREMATURE REPLACEMENT OFTHE HYDRAULIC OIL.

NEVER USE THE BUCKET TO SCALE THE ROOF / FLOOR / FACE / SIDESOF THE GALLERY, SINCE IT CAN DAMAGE THE MAIN LIFT RAMS OR THEBUCKET .

Pilot circuit is controlled by the following:

Low Oil Level Switch - Trips pilot circuit when the hydraulicoil level reduces.

High Temperature Limit Switch - Trips pilot circuit when thetemperature of the oil reaches

65-80 deg. C range

Recommended Lubricants ( 625 SDL ) :


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SlNo

Lubricant Location Quantity Type ofLubricant

1 Hydraulic oil Hydraulic tank 305 liters HFB- 68

2 Gear oil Hull Gear box 22.7 liters SP 60

3 Lubricating oil Idlers, Rollers etc; 80% - 90% cap SP - 28

4 Machine oil Control lever hingesetc;

As perrequirement

-

5 Waste oil /Removed oil

Pins, Pivots, hingesetc;

As perrequirement

Any removedoil

6 Grease Electric Motor As perrequirement

AP - 3

7 Grease Other points As perrequirement

SG.- 3

HYDRAULIC SYSTEM:

1) The SDL should be fitted with heavy duty tandem gear pump for feedinghydraulic fluid independently to each track and services ( bucket, cable reel,cooling fan etc). The main hydraulic pump should be guaranteed for a minimumworking of 3000 hours.

2) Pressure line and return line filter with by pass and clog indicator should beprovided in the hydraulic circuit to maintain clean fluid.

3) The capacity of the oil tank should be sufficiently large to keep the fluid at lowoperating temperatures and for better hydro dynamics of fluid and does notcause discomfort to the operator.

4) The tank should be robust and there should be provision of providing O-ringsbetween sealing / matching parts.

5) The tank should be provided with oil level indicator, low fluid level cut off andhigh temperature cut off switches.

6) The hydraulic system should be incorporated with radiator / cooler of adequatecapacity & fan cooled.

7) The design of oil tank and cooling system should ensure that the temperature ofhydraulic system does not exceed 65 0 C under full load, continuous workingconditions The system should be suitable to work the machine in hot and humidunder ground mining conditions, where ventilation requirement is strictly adhereto Coal Mines Regulation 1957 & amendments there of made to the same.

8) All hydraulic hose assemblies and fittings of the machine should be DGMSapproved.

9) Self sealing hydraulic fluid filling arrangement should be provided to prevent

ingress of dirt.


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10) The hydraulic fluid pressure meter should be provided for online conditionmonitoring of the machine. This should be provided on control panel of themachine so that the reading is clearly visible to the operator, while operating themachine.

11) The machine should be designed to operate on DGMS approved Fire ResistantHydraulic Fluid (FRHF) , HFB-68. All hydraulic components and system shouldbe compatible to HFB 68 FRHF.

ELECTRICALS:

1. The electro-hydraulically powered SDL should be fitted with FLP motor of ratedKW, suitable for 550 +\- 10% V, 3-Ph, 50 Hz. The motor should be provided withFLP type plug and socket assembly approved by DGMS.

2. The cable reeler should be provided with DGMS approved plug & Sockets.

3. FLP Push button station and all FLP electrical apparatus on the machine shouldbe approved and permitted by DGMS for use in under ground gassy coal minesof India.

4. The SDL should be provided with halogen /metal halide lights both in the frontand rear side of the machie to ensure good visibility. Entire lighting arrangementshould be suitable to work on 24 V and all fittings should be FLP type, approvedby DGMS and ISI marked.

5. All Power cables should have indirect entry.


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DRILLING ROOF BOLT

1. Conventional Electric Drills

2. Pneumatic drills

3. Hydraulic drills

Conventional electric drills are used in soft fragile roofs where compressivestrength is less (56Kg/sq cm)

PNEUMATIC ROOF BOLTER:

1) Pneumatic Roof Bolter are used where roof is very hard(C S above 200 Kg/cm) 2) Rotary Percussive. 3) Percussive.

HYDRAULIC ROOF BOLTER :

1. Medium to strong roof. 2. Smooth but excessive.

COMPRESSER:


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CHUCK SELECTION:

HEXAGONAL 19 mm 3/4 HEXAGONAL 22 mm 7/8 SELF LOCKING SQUARE DRIVE 25 mm 1

MODELS CLOSED HEIGHT OPEN HEIGHT RANA/03/13-29 1225 2870 RANA/03/14-33 1370 3295 RANA/03/15-37 1470 3695

OTHER CUSTOM REQUIRED 2 STAGE SMALLER HEIGHT ROOF BOLTERS ALSOARE AVAILABLE WITH US.

Installation of a 2.4m rockbolt:

1) Ready to drill 2) Drill until chuck hits roof (Fit 1.2m drill rod) 3) Drop down to change drill rod(Fit 2.4m drill rod) 4) Drill until chuck touches roof

5) Lower drill down 6) Install resin

7) Red then green

8) Place bolt in hole

9) Fit bolt onto spinner

10) Run the spinner

11) Drill until chuck touches roof

12) Tighten nut


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13) Drop machine down

Drilling Machine: Specif ica t ion- - 1.5HP,

- volts,

- three phase squirrel cage moter,

- gear ratio 1:10

- current:

- at no load 9 amp,at full load 14-18 amp,

- remotely operated drill machine,

MAN RIDING SYSTEM


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MAN RIDING SYSTEM TECHNICAL DATA

TECHNICAL DATA :

A. Fluid Quality - 200 Cm 3/Revolution B. Fluid Quality - Mineral oil or fire resistance fluid C. Weight without Motor - 950 Kg.

D. 280 L/Min at 1450 RPM E. Operating Pressure - 230 Bar F. Maximum Pressure - 400 Bar G. Electric Motor - 1450 RPM at 50 Hz H. Electrical motor Performance - 110 KW I. Fluid Quality - approx. 100J. Axial piston pump - Linde BPV 200 with pressure controlledK. variable swash angle L. Fluid quantity(Main pump) - 200 cm 3/Rev M. Fluid flow rate (Main pump) - 280 litre/min at 1450, 50 Hz N. Fluid quantity (Auxiliary pump) - 42 cm 3/Rev O. Fluid flow rate (Auxiliary pump) - 60 lit/min at 1450 RPM P. Max. pressure - 400 Q. Max. operating pressure - 220 bar R. Operating pressure - 200 bar S. Boost pressure - 16 bar T. Axial piston pressure - 2 - 8 bar U. Electric motor - 1450 RPM

V. Electric motor performance - 110 kW at 1450 RPM W. Fluid type - Mineral oil or fire resistant fluid X. Capacity - 100 Liters Y. Cooling - Air cooler for Hydraulic fluid Z. Weight without motor - 950 Kg. AA. Other devices - Rinse value

1.Hydraulic control cylinder with solenoid valve to move the operating lever2. Boost pressure control switch. 3) Fluid level control unit 4) Temp. control unit 85 0

5) Boost pressure Manometer 6) Operating pressure Manometer DIMENSIONS AND TECHNICAL DATA :

1. Length of frame :: 2410 mm 2. Width of frame :: 930 mm 3. Height of frame :: 725 mm 4. Drive sheave diameter :: 1550 mm 5. Grooved drive sheave diameter :: 1475 mm 6. Brake pads dimensions :: 2 X 300 cm 2 7. Brake pads thickness :: 25 mm 8. Brake force :: 9630 daN 9. Brake release pressure :: 38.3 bar


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10. Maximum pulling force :: 2700 daN 11. Working pressure :: 210 bar 12. Drive speed :: 0 to 3 Mts./sec.

Electric Motor-

110k W, 550 V, 3 Ph,50 C/ s, 1450 RPM, Flange Mounted, Air Cooled,Non - FLP Type,Squirrel Cage Induction Motor .

Brake-

1. Spring Applied

2. Hydraulic Released

Parking,Service , Emergency

Parking Brake: For holding in the same condition

Service Brake: For stopping the system when in motion

Emergency Brake- Stalling of the system either by the Driver or anybody elseor byitself in case of Emergency .

Brake Pad - Area - 2 X 300 Sq Cm, Thickness - 25 mm

Brake Force - 9630 da N,9630 Kg,9.63 T

Brake Release Force - 38.3 Bar,38.3 Kg / Sq Cm

Maximum Pulling Force - 2700 da N , 2700 Kg, 2.7 T

Hanging Chair


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*Suspended with four Rollers.

*Lateral Swing on either side shall be 1 3 degrees.

*Minimum Gap between Roof and Rope-

- 330 mm

*Gap between bottom of the chair and floor

- 300 - 500 mm

Operation:

1) Chairs must be in condition.

2) In case of detachable chairs, the chair before boarding

3) be attached in the correct position i.e; foot rests in the direction of travel. 4) Do not Swing the chair during travel.

5) To steady oneself one can for some metres touch the foot wall with thefeet if the travel allows this;

6) other wise, the feet must be on the foot rest.

7) In case where the system is not equipped with a device

8) where by the distance between the chairs is automatically controlled,

9) the prescribed distance of 15 mtr. must be maintained.


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10) On arrival , please un board and take off the chair as quickly as possible.

11) Pack chair away neatly on the rack provided .

12) Do not lean back on to the seat or touch the rope with the hands

13) or push oneself off

Emergency ropes-

These are to be used only in case emergency to stop the drive unit.

SAFETY:

Organization : SCCL Internal Safety Organization

FATAL ACCIDENTS:

Sl.No Year No. of No. of per sons Death rate Classif ication by Death rate


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accidentsFatal

Serious per 1000persons

cause per mil li ontonnes of

1 2003 1 1 -- 0.74 Fall of roof 3.OO

2 2004 -- -- -- -- -- --

SERIOUS ACCIDENTS:

Sl.No. Year No. ofaccidents

No. ofpersonsinjured

I njur y rateper 1000persons

employed

Classif ication by cause I nj ur y rateper mil li ontonnes of

Output

1 2003 --- --- --- -- ---

2 2004 2 2 1.5 Fall of Person

Rope Haulage

6.52

REPORTABLE ACCIDENTS:

Sl.N o.

Yea r

No. ofaccide

nts

No.of

perso ns

injure d

Injuryrateper

1000person

semploy

ed

In jur y rate

permilli on

tonne s ofoutp

ut

Classif ication by cause

F a

l lofro of

F a

llofsid e

Rope

Haula ge

Fall

ofobje ct

Fall

ofpers on

Excaug

ht

Miscellane

ous

1200

3 166 166 123.8 498.1 2 6-

106 33 15 4

2200

4 169 169 125.3 499.8 2 6 1 100 41 17 2


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ISM DHANBAD

MINING MACHINERYENGINEERING

TRAINING REPORTRAVINDRA KHANI 5 INCLINE

(MAY-JUN 2014)

NAME : KUNTI ARUN KUMAR REDDY

R.NO: 2011JE1259

SEMESTER:7

S.NO. 28


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ISM DHANBAD MINING MACHINERY

ENGINEERING


(MAY-JUN 2014)

NAME : MENTA MALLIKARJUNA

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