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coal field 煤田,產煤區。

coal fish

The geology characteristics of the coal field and the distribution characteristics of the cbm ( coal - bed methane ) resourse in china were analyzed briefly , and the technologies of methane drainage and cbm utilization and its suitablity were researched , and the problems of methane treatment and cbm development were analyzed , and the technical measures for promoting and strengthening the methane treatment such as strengthening the gas drainage , excavating after gas drainage , choosing the method of gas drainage according to its condition were put forward 摘要簡要分析了我國煤田地質特點以及煤層氣資源分布特征,總結了瓦斯抽放及煤層氣開發技術及其適應性,剖析了煤礦瓦斯治理及煤層氣開發的技術難題,提出了促進和加強我國煤礦瓦斯治理的強化瓦斯抽放,堅持先抽后采,因地制宜選擇瓦斯抽放方法等技術對策。

The qitaihe coal resources isadvantageous , the coal field total area 8 , 000 square kilometers , haveverified the geological reserve 1 . 7 billion tons , the prospectivereserves 4 . 2 billion tons , the coal plant completely , has the cokingcoal , 1 / 3 coking coal , the gas coal , the anthracite and so on 10varieties , by coking coal primarily ; excellent in quality , has theespecially low phosphorus , especially low characteristic and so onsulfur , high heat value , high ash melting point , high silicon content , most is suitable for the coal chemical industry product thedevelopment , is national one of three big protections mining rare coalfields , is the heilongjiang province most important anthraciteproduction base , also is the national important coking coal and thenortheast area biggest high quality coke production base 七臺河煤炭資源得天獨厚,煤田總面積8000平方公里,已探明地質儲量17億噸,遠景儲量42億噸,煤種齊全,有主焦煤、 1 / 3焦煤、氣煤、無煙煤等10個品種,以主焦煤為主;品質優良,具有特低磷、特低硫、高發熱值、高灰熔點、高硅含量等特點,最適于煤化工產品的開發,是全國三大保護性開采稀有煤田之一,是黑龍江省最重要的無煙煤生產基地,也是國家重要的主焦煤和東北地區最大的優質焦炭生產基地。

According to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field , including lithology , size distribution , sedimenta ry structure , geochemistry and paleontology etc . , the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt . it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal . the peat flat is the important paleoenviron ment for coal accumulation . the tidal channel destroys the coal bed . the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation 根據肥城煤田石炭系太原組的巖性、粒度分布、沉積構造、地球化學及古生物等沉積特征,將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境,認為太原組形成于潮汐作用為主的陸表海海岸,泥炭坪是成煤的重要古地理環境,潮渠對煤層有一定的破壞作用,地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。

Has established a multi - objectives multi - level decisions - making model and its the decision support system based on the analytic hierarchy method and the multiple source selected location mathematical model , proposed a new urban coal field configuration , compared with the original plan , reduced the coal total transportation amount , reduced the coal field cost of operation , reduced the coal transportation the pollution which created to the urban environment 基于層次分析方法和多源選址數學模型建立了一個多目標多層次的決策模型及計算機決策支持系統,提出了一個新的煤場布局方案,與原方案相比,減少了煤炭總運量,降低了煤場經營成本,減輕了煤炭運輸對城市環境造成的污染。

Are about 12 billion tons . the main types of coal are coking coal , gas bituminous coal , lean coal and anthracite , etc . xiangning coal field is one of the three biggest metallurgical coal bases of the whole country , with the characteristics of thick bed , 首屈一指的煤炭資源,儲藏面積1 . 54萬平方公里,占總面積的5 % ,總儲量960億噸,探明儲量120億噸,主要煤種有主焦煤氣肥煤貧肥煤瘦煤無煙煤等,其中鄉寧主焦煤為全國三大主焦煤基地之一,而且煤層厚埋藏淺易開采。

In spatial distribution , coal fields are developed in the anomalies of high chargeability sedimentary areas ; metamorphic iron deposits occur in the anomalies of high chargeability metamorphic areas ; endogenic gold deposits are found in the anomalies of high chargeability igneous areas 空間分布上,與沈積作用密切相關的煤礦主要分布在沈積巖高極化率地區,變質鐵礦主要分布在變質巖高極化率地區,內生金礦則主要分布在火成巖高極化率地區。

Surface collapse of coal field is one kind of geological disaster with great hazard , which may result from distortion and breakout of overlying strata that lose their support after underground coal beds are excavated in a large area 摘要采煤區地面塌陷是由于地下煤層大面積采空引起上覆巖層失去支撐而變形崩落最后導致地面沉降一種危害很大的地質災害。

The system is utilized to store and manage the basic geographical information , coal field exploration materials , coalbed methane exploration materials and regional geological survey achievement of qinshui basin interactively 運用該系統對沁水盆地的基本地理信息、煤田勘探資料、煤層氣勘探資料及區域地質調查成果進行了一體化存儲管理。

This is not always true - as with the manufacture of pig iron and steel from low - grade iron ores - but it did lead to the concentration of industrial developments on the coal fields 并非一概如此?例如從低級鐵礦石中生產生鐵和鋼材的情況一但是這導致了工業發展集中在煤田上。

Hegang coal field , of the type of a ( inland ) faulted basin far from the sea , was formed in the early neo - jurassic age about 140 million years ago 鶴崗煤田約形成于一億四千多萬年前的晚侏羅世初期,是遠海內陸斷陷盆地型煤田。

Sequence of primary sedimentary structures and sedimentary environment for the permian coal measures in the luling mine of the huaibei coal field 淮北煤田蘆嶺井田二疊紀含煤巖系原生沉積構造序列與沉積環境

Influence of the tectonic thermal events in yanshan epoch on coalbed methane enrichment and high - productivity in xishan coal field in taiyuan 燕山期構造熱事件對太原西山煤層氣高產富集影響

Causes analysis for coal seam prone to spontaneous combustion in yima coal field and practice of comprehensive preventive technology 義馬煤田易自燃煤層火災原因分析與綜合防治技術實踐

Optimum design and constructin for the upper air - returning system at the sixth mining area , no . 1 well , yaojie coal field 窯街煤田一號井六采區上部回風系統優化設計與施工

The total collapsing area of coal field in yanzhou city had accumulated to 23 . 901 km ^ 2 by september , 2002 至2002年9月,該地區地面塌陷的面積達23 . 901平方公里。

Studies optimization problems which a urban coal field location layout and the coal allocates and dispatches 摘要研究一個城市煤場布局與煤炭配送的最優化問題。

Study on chemical composition characteristics of tonstein in taiyuan formation in xinwen and feicheng coal fields 陸表海盆地含煤地層的高分辨率層序地層研究

Analysis to the deposit environment and coal forming model in permian period in yong - xia xin - qiao coal field 永夏煤田新橋井田二疊系沉積環境與聚煤規律淺析

Characteristics and utilization prospects of coal gangue from daliuta mine area of shendong coal field 神東煤田大柳塔礦區煤矸石特征及利用前景