NORTHERN COALFIELDS LIMITED - Environmental Clearance

MINING PLAN

FOR DUDHICHUA OPENCAST PROJECT

(17.5 Mtpa)

NORTHERN COALFIELDS LIMITED

September – 2018

NORTHERN COALFIELDS LIMITED P.O.-SINGRAULI, DISTT.-SINGRAULI (M.P.), 489889

Table of Contents 1. Introduction .................................................................................................................... 1-2

1.1 Reasons for closure……………………………………………………………………………….2-3

1.2 Statutory obligations…………………………………………………………………………….3-4

1.3 Closure plan preparation………………………………………………………………………..4

2. Mine Description……………………………………………………………………………………………..5

2.1 Geology…………………………………………………………………………………………………5-6

2.2 Reserves………………………………………………………………………………………………..6-7 2.3 Mining Method……………………………………………………………………………………..7-9 2.4 Coal Beneficiation if any………………………………………………………………………… 9

3. Closure Plan ………………………………………………………………………………………………..9 3.1 Mined out land…………………………………………………………………………………….. 9-12 3.2 Water Quality Management………………………………………………………………. 12-15 3.3 Air Quality Management……………………………………………………………………. 15-16 3.4 Waste Management…………………………………………………………………………… 17-19 3.5 Top Soil Management…………………………………………………………………………… 19 3.6 Management of Coal Rejects from Washery…………………………………………. 20 3.7 Infrastructure……………………………………………………………………………………….. 20 3.8 Disposal of Mining Machinery………………………………………………………………. 20 3.9 Safety and Security………………………………………………………………………………21-22

3.10 Economic Repercussions of closure of mine.................................…......22-24

4. Time Scheduling for abandonment………………………………………………………….. 24 5. Abandonment Cost……………………………………………………………………………….. 24-26 6. Financial Assurance………………………………………………………………………………… 27 7. Responsibility of the mine owner………………………………………………………….. 27-29 8. Provision for Mine closure………………………………………………………………………. 29

0 Mine Closure Plan Dudhichua OCP 17.5 Mtpa

1 Mine Closure Plan Dudhichua OCP 17.5 Mtpa

MINING PLAN FOR ENHANCED COAL PRODUCTION

AT DUDHICHUA OPENCAST PROJECT (17.50 Mtpa)

(FOR ENVIRONMENTAL CLEARANCE) 1.0 INTRODUCTION

1.1 As per Master Plan of Singrauli Coalfield, Dudhichua Mining Block was iden-

tified as 10 Mtpa coal project. Accordingly, FR for Dudhichua OCP was prepared by CMPDI in 1981 for a

rated capacity of 10 Mtpa and processed for approval. When the FR was discussed in the meeting of IMG (Inter Ministerial Group) held on 11th January '82, it was de-cided that the project may be developed in two stages, Stage-I of 5.00 Mtpa and ul-timate stage of 10.00 Mtpa.

1.2 FR for Dudhichua OCP (5 mtpa) i.e. Ph-I FR for Dudhichua OCP for the rated capacity of 5 mtpa was sanctioned by the

Govt. in Feb., '84 at an estimated capital of Rs.289.68 crores. The implementation of the project was taken up with the World Bank Assistance of US $ 151 million. As per FR, the project was to achieve rated production of 5 mtpa in Mar '94.

1.3 EPR for Dudhichua OCP (10 mtpa):- With the increased demand of coal on NCL during VIIIth Plan period for pow-

er sector it had become necessary to expand Dudhichua OCP to its ultimate stage. Accordingly, the PR for Dudhichua OCP (Ph-II) was prepared by CMPDI in

Dec.’89 (and updated in Aug.'91) for an additional output of 5 mtpa. At the time of sanctioning of the report, the economics of Dudhichua Ph-I (5 mtpa) and additional production of Dudhichua Ph-II (incremental 5 Mtpa) was presented in a composite manner to the Govt. The EPR for Dudhichua OCP (10 Mtpa) was sanctioned by the Govt. on 25.8.92 for a capital investment of Rs. 868.93 crores.

The scheduled date of completion of this EPR (10 Mtpa) was Mar'98. Howev-

er, implementation of the project could not be started in full swing due to fund con-straints.

1.4 Completion Report of Dudhichua OCP (5 Mtpa): The Ph-I of Dudhichua Project (5 Mtpa) was completed in March '93 at a capi-

tal cost of Rs.417.74 crores which also included Rs.21.13 crores for Ph-II part.

Mining Plan for Enhanced Coal Production at Dudhichua Opencast Project (17.50 Mtpa)

Page No.

1.5 RCE for Dudhichua OCP (10 mtpa) RCE for Dudhichua OCP (10 Mtpa) was prepared for a capital investment of

Rs.1281.39 crores (updated Dec., 2000) and the same has been approved by the Govt. on March, 2001.

1.6 Completion Report of Dudhichua OCP (10 Mtpa):-

The RCE of Dudhichua Project (10 Mtpa) has been completed in March '2004 at a initial capital cost of Rs. 1267.97 crores

1.7 Mining Plan for Enhanced Coal Production (12.50 Mtpa) As all the opencast projects of NCL are working 365 days per annum against

the sanctioned working schedule of 300 days per annum, there is possibility to en-hance coal production to the tune of about 25% (maximum), more than the planned capacity of the project. Considering the above fact, this Mining Plan has been pre-pared for enhanced coal production of 12.50 Mtpa by increasing efficiency for the preparation of EMP (Environment Management Plan) and submitted.

EMP was prepared on the basis of the Mining Plan and Public Hearing was conduct-

ed. Environmental Clearance for 12.50 Mtpa was granted by MoEF vide letter No. J-11015/426/2007-IA.II (M) dated 28/02/2008.

1.8 Mining Plan for Enhanced Coal Production (15.50 Mtpa) With the start of outsourcing of OB removal in NCL mines in 2006-07 under

Emergency Coal Production Plan of CIL, further possibility to enhance coal produc-tion of about 3 Mtpa was envisaged. Considering the above fact, a Mining Plan was been prepared in August 2008 for enhanced coal production of 15.50 Mtpa by re-moving OB with the help of outsourcing.

Environmental Clearance for 15.50 Mtpa was granted by MoEF vide letter No. J-

11015/382/2008-IA.II (M) dated 10/12/2008. 1.9 Mining Plan for Enhanced Coal Production (17.50 Mtpa) The Project has further potential for enhancement in coal production up to

17.50 Mtpa. A Surface Miner of 3 Mt capacity was deployed on Pilot Project basis which has worked successfully and proposed increase in coal production from 15.50 Mtpa to 17.50 Mtpa will be achieved by Surface Miner.

2.0 PROJECT SITE INFORMATION 2.1 Location & Communication Dudhichua Opencast Project is located on the east of Jayant Opencast Project

and on the west of Khadia Opencast Project in NCL of Singrauli Coalfield. The in-


Page No.

ter-state boundary between MP and UP passes through the project area and thus pro-ject is partly in the district of Sidhi in MP and partly in the district of Sonebhadra of UP. The nearest Railway Station, Shaktinagar is at a distance of 6 Kms. and the ap-proachable by all weather metalled road. The project is at a distance of 63 Kms. by road from Renukut in UP and 18 Kms. from Waidhan in MP.

2.2 Physiography Dudhichua Opencast Block stands out on a plateau above plains on its south

west side. The average elevation at the foot of the plateau is 325 m. above MSL. The plateau is pronounced by a steep escarpment facing south west, rising

from the elevation of 320-390 m. The escarpment is characterized by thick growth of vegetation rolled-boulders and is dissected by numerous small seasonal streams. The area on the top of the plateau is undulating with elevation varying from 375-400 m with occasional high hills rising to 450 m.

The most important stream around the area is Balia Nalla. The drainage of the

area is controlled by seasonal streams which discharge into Balia nalla, which ulti-mately drains into GBP Sagar in the south. Similarly, towards north, the drainage is through seasonal streams which ultimately join Bijul Nalla.

2.3 Climate The climate of the area is tropical. The summer months are severe and prevail

from Mach-June. Generally, the minimum and maximum temperature during sum-mer are 21oC and 48oC respectively. The temperature in the winter during the month of November-February varies between 4oC to 21oC. The average annual rainfall is about 1000 mm out of which about 95% precipitation is during rainy seasons (from June-September only).

2.4 Land The total land acquired for Dudhichua OCP is 1752 Ha which includes 750 Ha.

of forest land and 1002 Ha. of non-forest land. No additional land is required for this Mine Plan of 17.50 Mtpa Status of land acquisition is given below:

Type of Land Required

(Ha.) Possessed as On 31.3.2008

Balance to be possessed

Forest Land (Total) -UP -Mp

750.00 555.00 194.78

750.00 555.00 194.78

0 0 0

Govt. Land (UP) 366.22 366.22 0 Tenancy Land (UP) 636.00 636.00 0 Total 1752.00 1752.00 0


Page No.

3.0 MARKETABILITY The project is linked to upcountry Power Stations through Basket Linkage. As

NTPC has inter-lined Dudhichua Railway siding with the MGR of NTPC, this pro-ject will serve as a Basket Linkage mine for pithead power stations of NTPC to meet any shortfall from any respective link mines. The proposed additional coal produc-tion, as per this mining plan(17.50Mtpa), will meet the enhanced demand on NCL.

4.0 GEOLOGY 4.1 The geological data given in this report are as per “Geological Report on

Dudhichua Block prepared by CMPDI in 1979”. The Geological Report is based on the data of 142 boreholes (13951 m) drilled by GSI, IBM and CMPDI. The bore-holes density for Dudhichua Block is 16 boreholes per sq. km.

4.2 Description of Coal Seams There are four coal seams occurring in the area viz. Kota, Turra, Purewa Bot-

tom and Purewa Top seam in ascending order. The lower most Kota seam does not outcrop in the area and has not been investigated in detail because it is thin and inter-banded and hence has not been considered in the EPR.

4.2.1 Turra Seam Turra seam is most attractive and important seam from the exploitation point

of view. The seam incrops on the face of escarpment is represented by a zig-zag pat-tern following the rugged escarpment face. The thickness of Turra seam within in-crop zone varies from 0.2 m to 20.67 m within a depth range of 25.08 m to 77.15m. The full thickness of Turra seam including all dirt bands varies from 17.40m to 24.99m and occurs within a depth range of 42.15m to 216.00 m.

Turra seam is an interbanded thick seam and no. of bands of thickness more

than 1 m varies from 1 to 3 in number. The broad qualitative characteristics of Turra seam are given in Table No.1 Table No.1

Particulars M% Ash% VM% Gross CV (K.Cal/

Kg.)

UHV (K.Cal/

Kg.)

Grade

Excluding all bands 7.0- 8.5

16.1- 22.3

27.1- 28.8

5250-5695 4939- 5367

B,C & D

Including all bands but excluding bands of thickness 1 m and above

6.7- 8.2

21.6- 32.8

24.8- 27.3

4725-5260

3504- 4801

D & E

Including all bands 5.8- 7.2

26.8- 36.8

22.7- 25.9

4225-4840 3021- 4222

D,E & F


Page No.

4.2.2 Purewa Bottom Seam Purewa Bottom seam incrops on the top of the plateau and is characterized by

the presence of clay. It overlies Turra Seam after a parting of 49-61 m and underlies Purewa Top seam after a parting of 27-44m. The thickness of Purewa Bottom Seam within the incrop zone varies from 1.6 to 7.79 m and occurs within a depth range of 25.20m to 79.40 m. The full thickness of Purewa Bottom seam including all dirt bands varies from 8.05 m to 13.70 m and occurs within a depth range of 40.92 m to 142.55m.

Like Turra seam, Purewa Bottom seam is also interbanded coal seam. One

persistent bands of thickness more than 1 m occurs in Purewa Bottom seam. The broad qualitative characteristics of Purewa Bottom seam is given in Table

No.2. Table No.2

Particulars M% Ash% VM% Gross CV (K.Cal/Kg.)

UHV (K.Cal/Kg.)

Grade


18.3- 24.3

28.6- 29.6

4975-5305 4470- 5077

C & D


6.5- 8.3

28.0- 33.9

25.8- 26.2

4335-4570

3325- 3891

E &

F


28.0- 36.4

25.8- 26.2

4335-4570 2994- 3891

E & F

4.2.3 Purewa Top Seam Purewa Top seam is the top most seam of the area. Like Turra and Purewa

Bottom seam, the incrops of this seam is also characterized by clay and hence the in-crop of coal is at depth due to the outcrop region being burnt by spontaneous com-bustion.

Purewa Top seam overlies the Purewa Bottom seam after a parting of 27 to 44

m. The thickness of Purewa Top seam within the incrop zone varies from 0.42 to 9.33 m occurs within a depth range of 31.20 m to 42.25 m. The full thickness of Purewa Top seam including all bands varies from 7.01 m to 10.28 m and the seam occur within a depth range of 34.82 m to 98.50 m.

Like Turra and Purewa Bottom seam, this seam also contain a number of

bands. The number of dirt bands of thickness more than 1 m varies from 0 to 2. The broad qualitative characteristics of Purewa Top seam is given in Table No.3.


Page No.

Table No.3 Particulars M% Ash% VM% Gross CV

(K.Cal/Kg.) UHV

(K.Cal/Kg.) Grade


22.6- 25.0

28.0- 30.1

4760-4980 4249- 4622

D


6.0- 6.7

41.8- 49.2

22.6-

3540

1269- 2207

Un- Graded to G


41.8- 49.2

5.0 MINING TECHNOLOGY

5.1 Description of the Minefield Dudhichua Block having an area of 8.68 sq. kms. Is located in the central part

of Moher Half Basin of Singrauli Coalfield. Existing Jayant Opencast Mine (10 Mtpa) lies to the west of the block and Khadia (4 Mtpa/10 Mtpa) lies to the east. The terrain of the opencast minefield represents the hilly plateau with steep escarpment facing south with RLs of 375m to 400 m with occasional hills rising upto 450 m. The average elevation at the foot of the plateau is 325 m above MSL.

5.2 Mine Boundaries 5.2.1 Delineation of Mine Boundaries The criteria for fixing the quarry boundary are given below:

i) Southern Boundary: The southern boundary has been fixed in Turra seam in-crop zone.

ii) Eastern & Western Boundary: Dudhichua Mining Block shares the boundary with Jayant Opencast Mine on the west and Khadia Opencast Mine in the east.

iii) Northern Boundary: Northern Boundary has been taken as identified in the feasibility study of Singrauli Coalfield for Dudhichua Project.

5.3 Mineable Reserves

As per PR the total mineable reserves are 344.96 Mt. and the total volume of OB is 1133.41 Mm3 with average stripping ratio of 3.29 m3/t. The seamwise break-up of the mineable reserves are given below: - Turra Seam - 202.68 Mt. - Purewa Bottom Seam - 91.37 Mt. - Purewa Top Seam - 50.91 Mt. - Total - 344.96 Mt. As per the latest estimation done by CMPDI, seam-wise break-up of the balance mineable reserves as on 31/03/2016 within the leasehold boundary considered in 15.50 Mtpa mine is given below:


Page No.

- Turra Seam - 58.41 Mt. - Purewa Bottom Seam - 21.62 Mt. - Purewa Top Seam - 10.82 Mt. - Total - 90.85 Mt. Balance volume of overburden as on 31/03/2016 is 437.72 Mcum as per the assess-ment. Dudhichua Opencast Mine has produced 29.51 Mt. of coal alongwith 99.74 Mm3 of OB removal during the period from 01/04/2016 to 31/03/2018. Hence there is balance mineable coal reserve of 61.34 Mt with corresponding overburden of 337.98 Mcum at average stripping ratio of 5.51 cum/t. The actual progress of the project vis-à-vis sanctioned provision is given in Table No.4. Table No. 4

PRODUCTION

5.4 Mining and Geological Characteristics .

The mining and geological characteristics of Dudhichua Mining block are giv-en in Table No.5.

Table No.5

MINING & GEOLOGICAL CHARACTERISTICS DUDHICHUA MINING BLOCK

S.No. Particulars Turra Seam

Purewa Bottom Seam

Purewa Top Seam

I. COAL SEAMS :- Seam Thickness 17-20

18 8.1-13.7

12 7.0-10.3

9

Years As per Mine Plan (15.50 MT)

Actual (Mt)

Coal (M.Tes)

OB (MM3)

Coal (M.Tes)

OB (MM3)

Upto 07-08 127.76 428.92 08-09 13.00 49.40 13.27 34.36 09-10 13.50 51.84 13.31 28.79 10-11 14.00 53.62 10.50 26.41 11-12 15.00 53.25 11.73 31.15 12-13 15.50 55.03 12.23 30.62 13-14 15.50 54.25 11.17 31.45 14-15 15.50 54.25 10.82 25.39 15-16 15.50 54.25 13.08 63.11 16-17 15.50 54.25 14.01 57.52 17-18 15.50 54.25 15.50 42.23 Total 148.50 534.39 125.63 371.01


Page No.

S.No. Particulars Turra Seam

Purewa Bottom Seam

Purewa Top Seam

2 Dip, in deg., 2-3 2-3 2-3 3 Volume Weight of ROM Coal

(te/m3) 1.54 1.60 1.72

4 Hardness Co-efficient (Protodia- konov's Scale)

1-2 1-2 1-2

5 Drilling Category VIII VIII VIII 6 Excavation Category III-90%

IV- 10% III-90% IV- 10%

III-90% IV- 10%

II. OVERBURDEN :- Sections South East West

1 External OB thickness above seams, M

25-100 30-105 15-75

2 Thickness of parting between Turra & Purewa Bottom Seam, M

54-61 49-57

3 Thickness of parting between Purewa Bottom & Purewa Top Seams, M

32-44 28-36

4 OB Volume weight te/m3 2.35 2.35 2.35 5 Hardness co-efficient (Protodia-

konov's Scale) 1 - 4 1 - 4 1 – 4

6 Drilling Category X X X 7 Excavation Category III-90%

IV- 10% III-90% IV- 10%

III-90% IV- 10%

III. QUARRY PARAMETERS :- 1 Length of quarry along the floor

(in Km.) 1.0 - 1.16 1.75 2.5

2 Width of quarry at floor (in Km.) 0.4 - 0.73 1.90 1.58 3 Maximum depth, in M 85 235 205 4 Total area, in sq.km. 8.68

5.4.1 Selection of Mining Method

Considering the mining and geological condition of:

a) flat gradient of 2-3o of the coal seam; b) Mining of multiple seams viz. Turra (17-25 m), Purewa Bottom Seam

(8-14 m) and Purewa Top Seam (7-10 m); c) The parting between Turra and Purewa Bottoms seam being 54-61 m in

the east and 49-57 m in the west sections and d) Large scope of work including 12.50 Mt. of ROM coal and 43.30 Mm3

of OB per annum, the combined system of mining with the use of Draglines and Shovel-Dumper com-

bination has been implemented at the project. 5.4.2 Status of HEMM


Page No.

The status of HEMM has been shown in Table No.6. Table No.6.

MAIN MINING & TRANSPORT EQUIPMENT

S.No. Equipment Size/ Cap.

As per RCE (10 Mtpa)

Existing as on 1.4.2018

1 Dragline 24/88 mR 4 4 2 Rope Shovel 10 m3 20 1 3 Rope Shovel 10 m3 18 12 4 Hyd.Elect.Shovel 5.5 m3 2 - 5 Hyd. Shovel 1.2 m3 - 2 6 RBH Elect.Drill 300-330mm 4 4 7 RBH Elect.Drill 225-250mm 16 6 8 RBH Drill 160 mm 8 7 9 Rear Dumper 120 T 38 13 10 Rear Dumper 100 T 72 40 11 Rear Dumper 85 T 28 19 12 Dozer 770/860 HP 5 8 13 Dozer 410 HP 21+2 # 12 14 Wheel Dozer/Dozer 300/480 HP 8+3 # 2 15 Dozer/Wheel Dozer 250/320 HP 2** 1 16 Crane 50-120 T 2 2 17 Crane 30-40 T 1 2 18 Crane 8-20 T 4 19 FE Loader 11.5 M3 1 1 20 FE Loader 5.74 M3 3 1 21 Grader 280 HP 10 8 22 Surface Miner 4000mm 1

** 2 Nos. of 250-320 HP Dozer/Wheel Dozer under the head Other P&M. # 2 Nos. of 410 HP & 3 Nos. of 300 HP Dozer for Land Reclamation. 5.4.3 Sequence of Mine Development

The opencast minefield was proposed to be developed in three sections namely South Section followed by East and West sections through a central mine entry. The south section was exhausted and presently the minefield is has been developed in two sections namely East & West Sections with the deployment of 2 Nos. of 24 m3/88R draglines in each section.

5.4.4 Production Target & Mine Life

The enhanced coal production target of 17.50 Mtpa is proposed to be achieved

in 2nd year i.e. 2019-20 as per the proposed mining plan.


Page No.

The estimated life of the project for balance mineable coal reserves works out to 4 years with the enhanced coal production target. Coal Reserve is available in dip side of the mine which will be exploited in future as per Expansion Project Report (20 Mtpa).

5.4.5 Design Criteria

The following design criteria have been envisaged for the mining operations as per proposed mining plan: - No. of Annual Working Days - 365 days - No. of Daily Shifts - 03 - Duration of each shift - 08 Hours The opencast mine is proposed to be work on the above 3 shifts per day, 7 days per week and 365 days per annum schedule.

5.4.6 Equipment Productivity

Annual productivity of the various excavators has been calculated on the fol-lowing basis:

a) Excavation Category: - Coal - 90% Cat-III - 10% Cat-IV - OB - 90% Cat-III - 10% Cat-IV b) Average overall annual standard utilization of shift hour:

- Draglines - 73% - Elect. Rope Shovel - 58%

c) Factor allowed for traveling, positioning etc. The following factors have been considered in the EPR/RCE:

- Dragline - 0.8 - Elect. Rope Shovel - 0.8

The above factors have been minimized/eliminated in the proposed mining plan. Based on the above operating conditions and norms with efficiency improve-ment, the estimated annual productivity of various excavators is given below:

S.No. Equipment Annual Productivity

1 Dragline, 24m3/88R - 90o swing - 120o swing

4.53 Mm3 4.09 Mm3

2 10 m3 Elect. Rope Shovel with 120 T RD 2.99 Mm3 3 10 m3 Elect. Rope Shovel with 85 T RDCH 3.02 Mm3 4 20 m3 Elect. Rope Shovel with 170/190 T RD 5.76 Mm3

In future, it is proposed to replace all the existing 120 T and 85 T rear dumpers deployed in OBR with 190 T electric drive rear dumpers. Also, it is proposed to re-place existing 10 m3 Elect. Rope Shovel deployed in OBR with equivalent nos. of


Page No.

20 m3 Elect. All the 85 T dumpers deployed in coal extraction are proposed to be replaced by 100T dumpers which will work in conjunction with 10 cum ER/Hydraulic shovels. Such standardization of HEMM will improve efficiency.

With part OB removal by outsourcing, it will be possible to enhance coal production from the present level of 15.50 Mtpa to 17.50 Mtpa as indicated in the calendar pro-gramme (Table No.7).

5.4.7 Mine Plans The following mine plans are included: - Location Plan - Mine workings as on 01.04.2018 5.4.8 Drilling & Blasting Operations

Drilling and blasting operations are necessary for loosening the OB and Coal before excavation. Sufficient numbers of drills of 311 mm, 250 mm and 160 mm have been provided. The following specific consumption of explosives has been adopted for esti-mated annual requirement of explosives:

- OB from Shovel benches - 0.3 Kg./m3 - OB from D.L benches - 0.6 Kg./m3 - Coal seams - 0.2 Kg./m3

5.4.9 Waste Disposal Techniques

Main OB bench overlying Turra seam is proposed to be worked by Dragline system and backfill the OB in the decoaled area of previous cut. The advance benches above the dragline sitting level are to be developed by Shovel-Dumper sys-tem. Overburden above Purewa top seam will partially be removed by oursourcing. The additional composite volume removal/production required above the 17.50 Mtpa as envisaged in the Mining Plan will be done by outsourcing. The total balance volume of OB will be dumped internally.

Spoil dumps are proposed to be formed in benches of 30 M in height above the dragline heaps. Shovel-Dumper dumps should be away from the twice of the drag-line dump heaps. The recommended ultimate dump slope shall not exceed 28o.

5.5 Mining Schedule 5.5.1 Calendar Plan of Mining Operations Summarised Calendar Program is given at Table No.7:


Page No.

Table No.7

SUMMARIZED CALENDAR PROGRAM

Year Coal (Mt) OB (Mcum) SR (cum/t)

2018-19 17.00 77.01 4.53 2019-20 17.50 81.85 4.68 2020-21 17.50 95.00 5.43 2021-22 9.34 84.12 9.01 Total 61.34 337.98 5.51


Page No.

6.0 INFRASTRUCTURES 6.1 Coal Handling Plant: Dudhichua OCP has CHP of 10.0 MTY capacity. The Phase-I CHP having capacity of 5.0 MTY was constructed in 1993. The

Phase-I CHP has two gyratory crushers of 1400 TPH capacity each, one 25000 T ca-pacity on ground bunker, one 4000 T capacity Silo and double circuit conveyor sys-tem.

The Ph-II CHP of 5.0 MTY consists 1 No. Gyratory Crusher of 1500 t per hour, 1 No. of 10,000 t bunker, silo of 3000 t capacity and associated conveyor sys-tem.

Phase-III CHP of 10 Mty with Semi-mobile In-Pit Crushing & Conveying

(IPCC) system for (-)100 mm size output, 3000 T capacity Silo for loading on Rail-way Wagons and associated conveyors, has been approved by CIL Board. Draft NIT for Phase-III CHP has been prepared.

There is one surface miner of 3 Mty capacity with output size of (-)100 mm

crushed coal. Till construction of Phase-III CHP, there is one hired mobile crusher of 1.5

Mty capacity with output size of (-)100 mm crushed coal. Further, contract for one number additional Mobile Crusher of 1.5 Mty capacity is under finalization.

The total dispatch for the year 2017-18 is 15.49 Mt. 6.2 Power Supply Arrangement

6.2.1 Existing power supply arrangement

There are three 2x10 MVA 33/6.6 KV sub-stations in this project - Two for OB and one for coal. The project is receiving power at 33 KV from Madhauli sub-station of NCL

Out of two 2x10 MVA OB sub-station, one sub-station is called "C" (Part of

4x10 MVA Central Substation) and the other substation is called 'H'. The coal sub-station is called 'F'.

Sub-station "C (Part of 4x10 MVA Central Substation) & H" These two sub-stations supply power to 24/96 draglines, 10 M3 shovels, 311

mm & 250 mm drills etc. Sub-station "F" This sub-station supplies power to coal section shovels, Pumps, CHP, W/S and

colony etc.


Page No.

6.2.2 TELECOMMUNICATION:- This project has 400 Lines RAX electronic Telephone exchange, twenty no. of

MART telephone connection and nine no. of P&T telephone connections. 6.2.3 Energy & Power Demand The contract demand of the project is 25.04 MVA as per sanctioned RCE, out

of which 3.8 MVA is for colony and water supply. The industrial annual energy con-sumption is about 63.24 MKWH and that for colony is 13.53 MKWH in 2007-08 against the total annual energy consumption of 91.37 MKWH envisaged in the sanc-tioned RCE. Specific energy annual energy consumption is 6.62 KWH/t against 9.14 KWH/t envisaged in the sanctioned RCE.

6.3 Workshop 6.3.1 Existing Workshop The existing workshop at Dudhichua OCP caters the repair and maintenance

needs of HEMM, transport equipment, electrical equipment, LMV, pumps, CHP equipment etc. Existing workshop has the following main sheds :-

a) Dumper repair and maintenance shed b) Dozer repair and maintenance shed c) Field equipment repair and maintenance shed d) Store shed e) E&M repair and maintenance shed In addition to the above facilities, other allied facilities like washing, parking,

fuel filling, car parking, canteen etc. are provided in the sanctioned RCE. The expansion of existing workshop has been completed & is under operation.

6.4 Railway Siding There are two railway tracks below silo of CHP, one for loading of MGR rakes

and other for loading of Public Railways rakes. The tracks meant for MGR rakes are interconnected to Jayant MGR. The PR siding is taking-off from Shaktinagar Rail-way Station.

Both the siding has separate empty receiving line, after load line and engine

escape line. Three additional lines have been envisaged for 3rd Silo of Phase-III CHP with interconnections from existing lines.

6.5 Civil Constructions Residential Buildings


Page No.

Out of total 2456 houses envisaged in the approved EPR and also in the pre-sent RCE, 2250 Nos. of houses have been constructed as on 31.03.2018.

Type of Qtrs No. of Qtrs as per

EPR (AUG'92) No. of Qtrs as per

RCE Houses constructed

MQ 967 1144 1222 A Type 256 79 Hostel 160 160 50

B - Type 919 919 824 C- Type 108 108 108 D - Type 46 46 46

Total 2456 2456 2250 Service Buildings

All the Service Buildings like office (GM office, Town & Admn. office, Time/ Security office), statutory buildings like fuel analysis lab., Magazine, first aid centre, rest shelter etc.) and community and welfare buildings, dispensary, bank, post office, staff club, staff training centre are already completed.

6.6 Manpower

In the sanctioned RCE total manpower was 3018 with an OMS of 14.14 t. The existing manpower as on 01.04.2017 is 2246 and the required production of 17.50 Mtpa can be achieved within the sanctioned manpower in view of the im-proved size and efficiency of HEMM as well as outsourcing.

7.0 SAFETY & CONSERVATION 7.1 SAFETY

The Safety rules in force as per Rules and Regulations made under Mine's Act,

1952 shall be observed for all kinds of mining operations and required safety measures taken. Circulars issued from time to time regarding safety measures should be implemented. In order to ensure safety to the personnel and equipment of the mine and to improve the working conditions of the mine, the proposed mining plan envisages following measures mainly :

- Attempts shall be made to remove/dress down the loose material/overhangs from high wall side to prevent any accidental falling of the same while advancing the key cut.

- Coal winning by shovels and drilling on the roof of the coal seam under dragline reach is prohibited. - Coal is prone to spontaneous heating and catches fire. - Sufficient haul road width should be provided/recommended.


Page No.

- Safety berm should be left on benches. - For Stability of bench, the dump slope should be kept within permissible limit

as far as possible. - Gradient of haul road should be within permissible limit. - Communication network inside the mine should be further strengthened. - There should be intensive training on safety so that the workers/operators be-

come more conscious about the safety aspects. - Measures suggested for pollution control should be implemented. - Considering the steeper slope of dumps, the monitoring of dump slope is de-

sirable. - For a dump height of more than 80 m, permission from DGMS may be re-

quired.

7.2 Conservation Rising coal demand profile coupled with limited coal reserves warrant

immediate measures for conservation of coal. The Mining Plan suggests following strategies to minimise coal losses

and to improve conservation of coal :- - Attempts shall be made to minimise mining losses of coal and coal

extraction shall be upto the fixed floor boundary. Attempts shall also be made to take all the exposed coal from mine floor.

- On the main dragline bench, drilling is not recommended below the

roof of coal seam to avoid mixing of coal with OB due to blasting with a view to minimize coal loss.

- The coal is susceptible to spontaneous heating. Action shall be taken

to minimize coal loss due to fire minimized. - Care shall be taken in Dumper loading so that there is no loss of coal

during transportation. - Recovery of coal from boundaries with adjacent mines shall be done

as per planned process.


Page No.

8.0 ENVIRONMENTAL MANAGEMENT

A provision of Rs. 26.00 crores has been made towards Environmental Control Measures as per the sanctioned Revised Cost Estimate (Dec’2000). This includes the cost of rehabilitation, compensatory afforestation, technical reclamation, community development, pollution control measures etc.

For the implementation of the environmental control measures in Dudhichua Project, the total manpower provision is 29.

Adequate number and size of equipment have been provided for the purpose of reclamation.

9.0 CAPITAL PROVISION

The total initial capital requirement for Dudhichua Opencast Project (10 Mtpa) was sanctioned for Rs. 1281.39 crores against which the project has been completed on 31.3.2004 as per the schedule given in the sanctioned RCE. The completion cost works out to Rs.1267.97 crores. As this proposal is for enhanced coal production from the sanctioned 15.50 Mtpa to 17.50 Mtpa by additional OB outsourcing, no ad-ditional capital is envisaged for the proposed mining Plan. Surface Miner has already been procured under a pilot scheme.

-00000-


Page No.

MINING PLAN FOR

ENAHANCED COAL PRODUCTION AT

DUDHICHUA OPENCAST PROJECT (17.50 Mtpa) (FOR EMP CLEARANCE)

CONTENTS

SL. NO.

PARTICULARS PAGE NO.

1 INTRODUCTION 1 2 PROJECT SITE INFORMATION 2 3 MARKETABILITY 3 4 GEOLOGY 3 5 MINING TECHNOLOGY 5 6 INFRASTRUCTURES 11 7 SAFETY & CONSERVATION 17 8 ENVIRONMENTAL MANAGEMENT PLAN 18 9 CAPITAL PROVISION 18 10 MINE CLOSURE PLAN MCP-1 TO 18


Page No.

MINING PLAN

FOR ENAHANCED COAL PRODUCTION

AT DUDHICHUA OPENCAST PROJECT (17.50 Mtpa)

(FOR EMP CLEARANCE)

LIST OF PLATES

Sl. No. Particulars Plates 1 Location Plan 1 1 Mine workings as on 01.04.2018 2


Page No.

NORTHERN COALFIELDS LIMITED - Environmental Clearance

Documents

Transcript of NORTHERN COALFIELDS LIMITED - Environmental Clearance