成果報告書詳細
管理番号20130000000638
タイトル*平成24年度中間年報 国際石炭利用対策事業 クリーン・コール・テクノロジー実証普及事業 高効率簡易選炭システム実証普及モデル事業(インド)
公開日2013/7/27
報告書年度2012 - 2012
委託先名一般財団法人石炭エネルギーセンター 永田エンジニアリング株式会社
プロジェクト番号P93054
部署名環境部
和文要約1.実証事業の内容及び成果等
本事業は、我が国の高効率簡易選炭技術をインド炭に適用し、比較的低コストで選炭(灰分離)して一定品質の石炭の安定供給を実証するとともに、当該システムのインド国内への普及促進を図り、インドでの石炭供給の効率アップと環境負荷低減を実現することを目的としている。
本事業では、インドのモネット・イスパット・エネルギー株式会社(Monnet Ispat & Energy LTD)のUTKL B2炭鉱にて採掘された原炭(灰分40-50%程度)を受け入れ、精炭(灰分34%以下の石炭)と残渣(主に灰分)に分離する「高効率簡易選炭システム」を導入し、我が国で実績のある選炭技術(「可変波形型ジグ技術」及び「自動ボタ抜き制御技術」)のインド炭への有効性を実証する。
英文要約1. Contents and results of the Model Project: This Model Project introduces highly efficient coal preparation technology from Japan to the Indian coal industry. Coal preparation technology (ash separation) is demonstrated in order to provide a stable supply of coal with consistent quality at a relatively low cost. Also, through this Model Project efforts are made to disseminate the technology in India in order to improve the efficiency of coal supplies and to mitigate its negative environmental impact. In this Model Project, the raw coal (ash content 40-50%) produced in UTKAL B2 coalmine that Monnet Ispat & Energy LTD in India owns is divided into clean coal (ash content 34% or less) and waste (mainly ash) at high efficiency. In order to get the high separation efficiency, the Vari-Wave JIG technology and the Auto Reject Control technology are introduced, and this Model Project will prove the validity of both technologies. Monnet Ispat began leveling the construction site in fiscal year 2010. However, the land issue of the construction site happened in January 2010 and the leveling was interrupted. The land issue was settled in September, and the leveling was restarted and completed. However, because the construction site had been specified for the Critical Polluted Area by Ministry of Environment & forest, the construction of the coal preparation plant was interrupted again. Specification of the Critical Polluted Area was canceled at the end of March 2011. However, since obtaining the Environment Clearance was ordered by Ministry of Environment & forest, the construction work could not be started till the end of the fiscal year. In the 2011 fiscal year, in order to obtain the Environment Clearance, the environmental data for three months were measured and submitted to the Ministry of Environment & forest in June 2011.The Environment Clearance was obtained through the governmental examination in September 2011. Although this Environment Clearance was attached and Consent to Establish was applied for construction permission of the coal preparation plant to the state government, paperwork was overdue and Consent to Establish was published at the end of February 2012, five months after. For this reason, the great portion of carried-out items that were due to be completed in the 2011 fiscal year became incomplete. Full-scale construction work was started from April 2012. By increasing a construction worker, ending the project on September 28, 2012 was aimed. However, it became difficult to make the project finish on September 28, 2012 for the following reasons. Therefore, project duration was extended till March 19, 2013. * The low technological level of the field-worker employed as a local measure. * Insufficient tools. * Intense heat for the first time in 40 years, which occurred from the middle of May to mid-June, and the field-worker, decreased sharply. * The monsoon (rainy season) came in September from the end of June. However, it was shown by Monnet in the meeting on February 4, 2013 (Monnet, JCOAL & NAGATA Engineering) that the end of the project became at the end of June 2013. The reason is as follows. * Insufficient process control. * The low technological level of the fieldwork member of India. * The design error of the conveyor belt. The carried-out items in the 2012 fiscal year are as follows. (1) Installation of equipments produced in India. (2) Installation of equipments produced in Japan and the third country. 2. Results: (1) Publishing and lecture: The following contribution was performed in order to publicize this Model Project. * Visit-to-Japan training of Mongolians. * Clean Coal for Earth, CEA-JCOAL Workshop in India. * Clean Coal for Earth, Visit-to-Japan training of Indians. 3. Other special notes. (1) Effort for dissemination of the model project. * Rajrappa Coal Preparation Plant (CIL): It was offered that Rajrappa wanted to make a special order coal preparation machines including Vari-Wave JIG to JCOAL.
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