【正文】 ...................................................................... 107 煤炭自燃機(jī)理 ........................................................................................................... 107 煤炭自燃的一般規(guī)律及發(fā)火期 ............................................................................... 107 煤炭自燃條件 ................................................................................................. 107 煤炭自燃過程 ................................................................................................. 107 煤的自然發(fā)火期 ....................................................................................................... 109 2 采空區(qū)自燃環(huán)境分析 ......................................................................................................... 110 采空區(qū)浮煤厚度 ....................................................................................................... 110 松散煤體空隙率 ....................................................................................................... 110 采空區(qū)漏風(fēng)強(qiáng)度氧氣分布 ....................................................................................... 111 工作面推進(jìn)速度 ...................................................................................................... 111 采空區(qū)圍巖原始溫度 .............................................................................................. 112 3 采空區(qū)遺煤的發(fā)火特點(diǎn)及“三帶”的劃分 .................................................................... 113 采空區(qū)遺煤自然發(fā)火特點(diǎn) ........................................................................................ 113 采空區(qū)“三帶”分布規(guī)律 ...................................................................................... 113 采空區(qū)“三帶”概述 ..................................................................................... 113 范各莊礦 150萬噸新井設(shè)計(jì) 6 采空區(qū)“三帶”劃分 ......................................................................................114 采空區(qū)“氧化帶”自燃危險(xiǎn)分析 ..................................................................115 ..........................................................................................116 注氮防滅火技術(shù) .......................................................................................................116 綜采放頂煤工作面采空區(qū)注氮防滅火工藝 ..................................................116 無煤柱開采綜放工作面采空區(qū)注氮防滅火工藝 .........................................117 利用水泥砂漿防治已封閉采空區(qū)發(fā)火 ...................................................................119 防滅火措施 .................................................................................................... 120 實(shí)施效果 ...................................................................................................... 121 自泥阻化泥漿法預(yù)防綜放面采空區(qū)自然發(fā)火 ....................................................... 122 5 結(jié)論 .................................................................................................................................... 124 參考文獻(xiàn) ................................................................................................................................ 125 致謝 ........................................................................................................................................ 126 華北科技學(xué)院畢業(yè)設(shè)計(jì)一般部分 一 般 部 分 范各莊礦 150 萬噸新井設(shè)計(jì)華北科技學(xué)院畢業(yè)設(shè)計(jì)一般部分 第 1 頁(yè) 共 126 頁(yè) 1 礦區(qū)概述及井田地質(zhì)特征 礦區(qū)概況 交通位置 范各莊礦業(yè)分公司位于開平向斜之東南翼，北距古冶火車站 ，地理坐標(biāo)為東徑 113176。礦井風(fēng)機(jī)工作方式為抽出式，礦井通風(fēng)方式 為中央分列式通風(fēng) 。開采水平標(biāo)高為 475和 750兩個(gè)水平。相對(duì)瓦斯涌出量為 m3/t，絕對(duì)瓦斯涌出量為 ，屬于低瓦斯礦井。 開灤礦務(wù)局范各莊礦位于河北省唐山市古冶區(qū)境內(nèi)，礦井井田走向 ，傾向長(zhǎng)度為 。華北科技學(xué)院畢業(yè) 設(shè)計(jì) 設(shè)計(jì)總說明 本設(shè)計(jì)包括兩部分：一般部分和專題部分。井田面積 。煤層無自然發(fā)火現(xiàn)象。礦井采用 走向 長(zhǎng)壁 一次采全高全部垮落 綜合機(jī)械化采煤法。 專題部分為 綜放工作面采空區(qū) 自然發(fā)火的規(guī)律及防治 關(guān)鍵詞 ：井田開拓； 采煤方式 ； 通風(fēng)安全；綜合機(jī)械化 華北科技學(xué)院畢業(yè)設(shè)計(jì) The Brief Introduction of the Design The design includes two parts: a general part and special part. The general part of the Group of Hebei Kailuan Fangezhuang mine million tons of new wells design. A total of 10 full papers, were: an overview of mining and mine geology, mine level and reserves, mine production capacity and design of work systems, mine development, with the layout of roadway, mining methods, underground transport, mine hoist, mine ventilation and security. Bureau of Mines Fangezhuang Kailuan mine is located in Tangshan City, Hebei Province guye district territory to mine Waida kilometers, inclined to a length of kilometers. Mine area of square kilometers. Mine coal seam with a 2 layer, respectively, on the 9th and the 12th coal seam, the main coal seam No. 9 coal seam, coal storage stability of the average thickness of meters, with an average inclination of 12 degrees. Mine industrial reserves of 198 million tons, recoverable reserves of 147 million tons. Gas emission relative to m3 / t, the absolute amount of gas emission , a lowgas coal mine. Seamfree spontaneous bustion phenomenon. The designed annual production capacity of the mine million tons, length of service for 70 years. Twolevel dualshaft mining area to open up mining. Mining the level of elevation for the two levels of 475 and 750. Mine used to take a long time the entire wall falling all integrated highmechanized coal mining law. Mine layout of a fully mechanized coal mining face, face length of 200 meters. The use of coal belt conveyor transport. Mine fans for taking the type of work, ventilation points out for the central ventilation. Thematic part of topcoal caving face goaf spontaneous bustion of the Regulation and Control Key words: Mine development。 28′，北緯 39176。礦井南有京唐港，東有秦皇島港，西有塘沽港，公路、鐵路、海運(yùn)極為便利。地貌簡(jiǎn)單，地表平坦，地勢(shì)呈現(xiàn)北高南低，坡度 1176。夏季流量顯著增加，最高洪峰達(dá) ，流速 。 范各莊礦 150萬噸新井設(shè)計(jì) 第 2 頁(yè) 共 126 頁(yè) 礦區(qū)水文及工農(nóng)業(yè)供水 因?yàn)槊合档貙由细采w著巨厚的沖積層，大氣降水后大部分從地表流走，所以礦井涌水量無季節(jié)性變化，井田西部沙河在冬春季河水近于干涸， 只排泄礦井水，夏季流量顯著增加，汛期有時(shí)泛濫，歷史最高洪峰水位為 ，最高洪峰達(dá) ，流速。礦井每日排水量約為 4500 m3，全部進(jìn)入污水凈化站進(jìn)行處理，凈化水主要用于井下防水注漿、灑塵、電廠冷卻、洗煤廠補(bǔ)充用水。常年最高氣溫 176。 本礦井建設(shè)期間，所需要建設(shè)材料，除鋼材、木材和部 分水泥需由國(guó)家計(jì)劃供應(yīng)外，其它磚、石、砂等土產(chǎn)材料，均由當(dāng)?shù)毓?yīng)，滿足建設(shè)需要。