साउथ ईस्टर्न कोलफील्ड्स लिमिटेड

South Eastern Coalfields Limited

(भारत सरकार का उपक्रम)

(A Government of India Undertaking)

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हमसे संपर्क करें | वेबसाईट अंतिम अद्यतन : August 13 2022 21:07:06

UNDERGROUND TECHNOLOGY

SECL in its endeavor for higher production from underground mines, has successfully introduced thick seam extraction with cable bolting; depillaring of contiguous seams with floor pinning and Powered Support Longwall Technology at Under Ground Mines; Mass production technology with continuous miners; Hydro-fracturing and long hole blasting at goaf from underground for hard roof management at Churcha West Mines; Indigenously developed Cutter Loader to avoid blasting in gassy mine etc.
  • Long Wall Mining : The technology, though presently not in use at SECL ,was successfully operated in the past at Kumda New, Balrampur and Rajendra Mines of SECL.
  • Shortwall Mining : This method is a combination of Longwall and Board & Pillar (B&P) mining which envisages the extraction of standing coal pillars (formed by development in Board & Pillar layout) with the help of Self Advancing PSLW equipment. Though this technology is presently not in use at SECL, it has been successfully utilized in the past at Balrampur UG mine of Bishrampur Area SECL.

MASS PRODUCTION TECHNOLOGY

  • Continuous Miner & Shuttle Car Combination: Initially it was introduced at Anjan Hill mine of Chirimiri Area in May 2002. Now at present this technology is in successful operation at nine underground mines of SECL viz; vindhya , kurja ,Vijay west, Haldibari , Kapildhara , Churcha ,Khairaha & Bangwar

  • Low Capacity Continuous Miner (LCCM). The Low height Continuous Miner which has been introduced for low height seam of Rani Atari UG mine of Chirimiri Area, is in successful operation since May’2021. Further It is proposed to be installed in Kurja- Sheetaldhara UGM.

  • High Wall Mining : This technology is suitable for thin (minimum 0.9m) and moderate coal seams where neither opencast nor the conventional underground mining methodology is possible to exploit the coal seams economically. It enables recovery of coal from surface pits that have reached the final high wall position due to uneconomic stripping ratio, or where coal has become sterilized due to surface constraints (infrastructure, water-courses, habitation etc.). Highwall mining has been successfully introduced for the first time in Coal India Ltd in February,2011 at Sharda mine of Sohagpur Area

OPENCAST TECHNOLOGY

Up-gradation of technology is a continuous process. As a Major mechanization drive in opencast mining, 42 Cum Electric Rope Shovels and 240 Te. Dumpers have been deployed for the first time in the country at Gevra & Dipka Mega OC projects.
  • Introduction of Surface Miners for coal production in Gevra OC project. Surface Miners have been deployed for coal production at Gevra Expn, Dipka OC Expn, Kusmunda OC Expn & Chhal OC ,Baroud, Jampali OC, Bijari OC of Raigarh Area. The total coal production from surface miners during FY2020-21 was 89.153 MT.

  • Man-riding System To avoid arduous travelling and hence enhance efficiency and effective working hours in underground method of mining,man-riding system has been installed which is at present running successfully in 13 underground mines of SECL viz; Jhiria ,Kurja-Sheetaldahara, Kapildhara, Behrabandh, Navpara, Shivani, Bagdeva, Singhali , Bangwar, Rajendra , Churcha RO, Katkona, Jhilimili etc. Further supply order has been given for two more mines and proposal is in pipeline for installing this system in additional 6 no’s of mines.