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1、<p><b> 附 錄A</b></p><p><b> 英文翻譯(原文)</b></p><p> 在當(dāng)今科技經(jīng)濟(jì)發(fā)展的新形勢(shì)下,煤炭開(kāi)采技術(shù)的研究必須面向國(guó)內(nèi)國(guó)外兩個(gè)市場(chǎng)、面向經(jīng) 濟(jì)建設(shè)主戰(zhàn)場(chǎng),立足于煤炭開(kāi)采技術(shù)的前沿,立足于中國(guó)煤炭發(fā)展戰(zhàn)略所必要的技術(shù)儲(chǔ)備,立足于煤炭工業(yè)中長(zhǎng)期發(fā)展戰(zhàn)略所必須的關(guān)鍵技術(shù)的攻關(guān),立足于煤炭
2、工業(yè)工程實(shí)際問(wèn)題的解決,重點(diǎn)從事中長(zhǎng)期研究開(kāi)發(fā)和技術(shù)儲(chǔ)備,跟蹤產(chǎn)業(yè)科技前沿,開(kāi)發(fā)有自主知識(shí)產(chǎn)權(quán)的以煤礦開(kāi)采技術(shù)及配套裝備為主導(dǎo)的核心技術(shù),占領(lǐng)技術(shù)制高點(diǎn)。</p><p><b> 1 采煤方法和工藝</b></p><p> 采煤方法和工藝的進(jìn)步和完善始終是采礦學(xué)科發(fā)展的主題。采煤工藝的發(fā)展將帶動(dòng)煤炭開(kāi)采 各環(huán)節(jié)的變革,現(xiàn)代采煤工藝的發(fā)展方向是高產(chǎn)、高效、高安
3、全性和高可靠性,基本途徑是使采煤技術(shù)與現(xiàn)代高新技術(shù)相結(jié)合,研究開(kāi)發(fā)強(qiáng)力、高效、安全、可靠、耐用、智能化的采 煤設(shè)備和生產(chǎn)監(jiān)控系統(tǒng),改進(jìn)和完善采煤工藝。在發(fā)展現(xiàn)代采煤工藝的同時(shí),繼續(xù)發(fā)展多層次、多樣化的采煤工藝,建立具有中國(guó)特色的采煤工藝?yán)碚?。我?guó)長(zhǎng)壁采煤方法已趨成熟,放頂煤采煤的應(yīng)用在不斷擴(kuò)展,應(yīng)用水平和理論研究的深度和廣度都在不斷提高,急傾斜、不穩(wěn)定、地質(zhì)構(gòu)造復(fù)雜等難采煤層采煤方法和工藝的研究有很大空間,主要方向是改善作業(yè) 條件,提高
4、單產(chǎn)和機(jī)械化水平。</p><p> 開(kāi)發(fā)煤礦高效集約化生產(chǎn)技術(shù)、建設(shè)生產(chǎn)高度集中、高可靠性的高產(chǎn)高效礦井開(kāi)采技術(shù)。以提高工作面單產(chǎn)和生產(chǎn)集中化為核心,以提高效率和經(jīng)濟(jì)效益為目標(biāo),研究開(kāi)發(fā)各種條件下的高效能、高可靠性的采煤裝備和工藝,簡(jiǎn)單、高效、可靠的生產(chǎn)系統(tǒng)和開(kāi)采布置,生產(chǎn)過(guò)程監(jiān)控與科學(xué)管理等相互配套的成套開(kāi)采技術(shù),發(fā)展各種礦井煤層條件下的采煤機(jī)械化,進(jìn)一步改進(jìn)工藝和裝備,提高應(yīng)用水平和擴(kuò)大應(yīng)用范圍,提高采煤
5、機(jī)械化的程度和水平。</p><p> (2)開(kāi)發(fā)“淺埋深、硬頂板、硬煤層高產(chǎn)高效現(xiàn)代開(kāi)采成套技術(shù)”,主要解決以下技術(shù)難題。</p><p> 硬頂板控制技術(shù),研究埋深淺、地壓小的硬厚頂板控制技術(shù),主要通過(guò)巖層定向水力 壓裂、傾斜深孔爆破等頂板快速處理技術(shù),使直接頂能隨采隨冒,提高頂煤回收率,且基本頂能按一定步距垮落,既有利于頂煤破碎,又保證工作面的安全生產(chǎn)。</p>
6、<p> 硬厚頂煤控制技術(shù),研究開(kāi)發(fā)埋深淺、支承壓力小條件硬厚頂煤的快速處理技術(shù),包括高壓注水壓裂技術(shù)和頂煤深孔預(yù)爆破處理技術(shù),使頂煤體能隨采隨冒,提高其回收率。</p><p> 頂煤冒放性差、塊度大的綜放開(kāi)采成套設(shè)備配套技術(shù),研制既有利于頂煤破碎和頂板控制,又有利于放頂煤的新型液壓支架,合理確定后部輸送機(jī)能力。兩硬條件下放頂煤開(kāi)采快速推進(jìn)技術(shù),研究合適的綜放開(kāi)采回采工藝,優(yōu)化工序,縮短放
7、煤時(shí)間,提高工作面的推進(jìn)度,實(shí)現(xiàn)高產(chǎn)高效。5~5.5m寬煤巷錨桿支護(hù)技術(shù),通過(guò)寬煤巷錨桿支護(hù)技術(shù)的研究開(kāi)發(fā)和應(yīng)用,有利于綜采配套設(shè)備的大功率和重型化,有助于連續(xù)采煤機(jī) 的應(yīng)用,促進(jìn)工作面的高產(chǎn)高效。</p><p> ?。?)緩傾斜薄煤層長(zhǎng)壁開(kāi)采。主要研究開(kāi)發(fā):體積小、功率大、高可靠性的薄煤層采煤機(jī)、刨煤機(jī);研制適合刨煤機(jī)綜采的液壓支架;研究開(kāi)發(fā)薄煤層工作面的總體配套技術(shù)和高效開(kāi)采技術(shù)。</p>
8、<p> (4)緩傾斜厚煤層一次采全厚大采高長(zhǎng)壁綜采。應(yīng)進(jìn)一步加強(qiáng)完善支架結(jié)構(gòu)及強(qiáng)度,加強(qiáng)支架防倒、防滑、防止頂梁焊縫開(kāi)裂和四連桿變形、防止嚴(yán)重?fù)p壞千斤頂措施等的研究,提高支架的可靠性,縮小其與中厚煤層(采高3m左右)高產(chǎn)高效指標(biāo)的差距。</p><p> ?。?)各種綜采高產(chǎn)高效綜采設(shè)備保障系統(tǒng)。要實(shí)現(xiàn)高產(chǎn)高效,就要提高開(kāi)機(jī)率,對(duì)“支架—圍巖”系統(tǒng)、采運(yùn)設(shè)備進(jìn)行監(jiān)控。今后研究的重點(diǎn)是:通過(guò)電液控
9、制閥組操縱支架和改善“支架—圍巖”系統(tǒng)控制,進(jìn)一步完善液壓信息、支架位態(tài)、頂板狀態(tài)、支護(hù)質(zhì)量信息的自動(dòng)采集系統(tǒng);乳化液泵站及液壓系統(tǒng)運(yùn)行狀態(tài)的檢測(cè)診斷;采煤機(jī)在線與離線相結(jié)合的“油—磨屑”監(jiān)測(cè)和溫度、電信號(hào)的監(jiān)測(cè);帶式輸送機(jī)、刮板輸送機(jī)全面狀態(tài)監(jiān)控。</p><p><b> 2 深礦井開(kāi)采技術(shù)</b></p><p> 深礦井開(kāi)采的關(guān)鍵技術(shù)是:煤層開(kāi)采的礦壓控
10、制、沖擊地壓防治、瓦斯和熱害治理及深井通風(fēng)、井巷布置等;需要攻關(guān)研究的是:深井圍巖狀態(tài)和應(yīng)力場(chǎng)及分布狀態(tài)的特征;深井作業(yè)場(chǎng)所工作環(huán)境的變化;深井巷道(特別是軟巖巷道)快速掘進(jìn)與支護(hù)技術(shù)與裝備;深井沖擊地 壓防治技術(shù)與監(jiān)測(cè)監(jiān)控技術(shù);深礦井高產(chǎn)高效開(kāi)采有關(guān)配套技術(shù);深礦井開(kāi)采熱害治理技術(shù)與裝備。</p><p> 3 “三下”采煤技術(shù)</p><p> 提高數(shù)值模擬計(jì)算和相似材料模擬等,
11、深入研究開(kāi)采上覆巖層運(yùn)動(dòng)和地表沉陷規(guī)律,研究滿足地表、建筑物、地下水資源保護(hù)需要的合理的開(kāi)采系統(tǒng)和優(yōu)化參數(shù),發(fā)展沉降控制理論和關(guān)鍵技術(shù),包括用地表廢料向垮落法工作面采空區(qū)充填的系統(tǒng);研究與應(yīng)用各種充填技術(shù)和組合充填技術(shù),村莊房屋加固改造重建技術(shù),適于村莊保護(hù)的開(kāi)采技術(shù);研究近水體開(kāi)采的開(kāi)采設(shè)計(jì)、工藝參數(shù)優(yōu)化和裝備,提出煤炭開(kāi)采與煤礦城市和諧統(tǒng)一的開(kāi)采沉陷控制、開(kāi)采村莊下壓煤、土地復(fù)墾和礦井水資源化等關(guān)鍵技術(shù)。</p>&
12、lt;p> 4 優(yōu)化巷道布置,減少矸石排放的開(kāi)采技術(shù)</p><p> 改進(jìn)、完善現(xiàn)有采煤方法和開(kāi)采布置,以實(shí)現(xiàn)開(kāi)采效益最大化為目標(biāo),研究開(kāi)發(fā)煤礦地質(zhì)條件開(kāi)采巷道布置及工藝技術(shù)評(píng)價(jià)體系專家系統(tǒng),實(shí)現(xiàn)開(kāi)采方法、開(kāi)采布置與煤層地質(zhì)條件 的最優(yōu)匹配。</p><p> 總結(jié)推廣神華集團(tuán)大柳塔礦、潞安漳村礦實(shí)行全煤巷布置單一煤層開(kāi)采,矸石基本不運(yùn)出地面,生產(chǎn)系統(tǒng)大大簡(jiǎn)化,分別實(shí)現(xiàn)無(wú)軌
13、膠輪、單軌吊輔助運(yùn)輸一條龍,從井口直達(dá)工作面,同時(shí)實(shí)現(xiàn)了綜采與綜掘同步發(fā)展,生產(chǎn)效率大幅提高的經(jīng)驗(yàn)的同時(shí),重點(diǎn)研究高產(chǎn)高效礦井開(kāi)拓部署與巷道布置系統(tǒng)的優(yōu)化,簡(jiǎn)化巷道布置,優(yōu)化采區(qū)及工作面參數(shù),研究單一煤層集中開(kāi)拓,集中準(zhǔn)備、集中回采的關(guān)鍵技術(shù),大幅度降低巖巷掘進(jìn)率,多開(kāi)煤巷,減少出矸率;研究矸石在井下直接處理、作為充填材料的技術(shù),既是減少污染的一項(xiàng)有力措施,又簡(jiǎn)化了生產(chǎn)系統(tǒng),有利于高產(chǎn)高效集中化開(kāi)采,應(yīng)加緊研究。</p>
14、<p> 5 采場(chǎng)圍巖控制技術(shù)</p><p> (1)進(jìn)一步完善采場(chǎng)圍巖控制理論。以科學(xué)合理、優(yōu)化高效的巖層控制技術(shù)來(lái)保證開(kāi)采活動(dòng)的安全、高效、低成本為目標(biāo),深入總結(jié)我國(guó)幾十年的礦山壓力研究成果,以理論分析(解析法)、現(xiàn)代數(shù)學(xué)力學(xué)(統(tǒng)計(jì)分析預(yù)測(cè)、數(shù)值法)和實(shí)測(cè)法相結(jié)合運(yùn)用先進(jìn)的計(jì)算機(jī)技術(shù),深入研究各種煤層地質(zhì)及開(kāi)采條件,如急傾斜、大采高、大采深采場(chǎng)礦山壓力顯現(xiàn)規(guī)律及圍巖 破壞與平衡機(jī)理,不斷完善
15、采場(chǎng)圍巖控制技術(shù)。</p><p> (2)研究堅(jiān)硬頂板與破碎頂板條件下應(yīng)用高技術(shù)低成本巖層控制技術(shù)。目前,由于應(yīng)用高壓注水、深孔預(yù)裂爆破處理堅(jiān)硬頂板和應(yīng)用化學(xué)加固技術(shù)存在工藝復(fù)雜、成本高的問(wèn)題,因而需進(jìn)一步研究開(kāi)發(fā)新技術(shù)、新工藝、新材料來(lái)解決這些問(wèn)題。</p><p> (3)放頂煤開(kāi)采巖層和支架—圍巖相互作用機(jī)理。研究放頂煤開(kāi)采力學(xué)模型、圍巖應(yīng)力、頂煤破碎機(jī)理、支架—頂煤—直接
16、頂—基本頂相互作用關(guān)系;運(yùn)用離散元等方法研究頂煤放落規(guī)律,提出放煤優(yōu)化準(zhǔn)則和提高頂煤回收率的途徑。</p><p> (4)支護(hù)質(zhì)量與頂板動(dòng)態(tài)監(jiān)測(cè)技術(shù)。在總結(jié)緩傾斜中厚長(zhǎng)壁工作面開(kāi)展支護(hù)質(zhì)量與頂板動(dòng)態(tài)監(jiān)測(cè)方面,應(yīng)進(jìn)一步在堅(jiān)硬頂板、破碎頂板、急傾斜、放頂煤工作面開(kāi)展支護(hù)質(zhì)量與頂板動(dòng)態(tài)監(jiān)測(cè),同時(shí)應(yīng)不斷完善現(xiàn)有的監(jiān)測(cè)技術(shù),發(fā)展智能化監(jiān)測(cè)系統(tǒng),改進(jìn)監(jiān)測(cè)儀表,使監(jiān)測(cè)儀表向直觀、輕便、小型化方向發(fā)展。</p>
17、<p> (5)沖擊地壓的預(yù)測(cè)和防治。通過(guò)計(jì)算機(jī)模擬研究沖擊性礦壓顯現(xiàn)發(fā)生的機(jī)理;進(jìn)一步完善沖擊性礦壓顯現(xiàn)監(jiān)測(cè)系統(tǒng),發(fā)展遙控測(cè)量和預(yù)報(bào)技術(shù),完善沖擊性礦壓綜合防治措施的優(yōu)化 選擇專家系統(tǒng)。</p><p> (6)研究開(kāi)發(fā)新型的支護(hù)設(shè)備。研究硬煤層、硬頂板放頂煤液壓支架,完善液壓支架性能和快速移架系統(tǒng),開(kāi)發(fā)耐炮崩、輕型化單體液壓支柱和厚煤層巷道錨索和可伸縮錨桿。</p><
18、;p> 6 小煤礦技術(shù)改造和機(jī)械化開(kāi)采技術(shù)</p><p> 實(shí)施國(guó)家關(guān)閉小煤礦,淘汰落后生產(chǎn)技術(shù)和生產(chǎn)設(shè)備,提高平均單井規(guī)模的技術(shù)政策,開(kāi)發(fā)小型煤礦機(jī)械化、半機(jī)械化開(kāi)采技術(shù)和裝備,改進(jìn)小煤礦的采煤方法和開(kāi)采工藝,提高采煤工作面的單產(chǎn)和工效;提高小煤礦的頂?shù)装蹇刂萍夹g(shù)水平,最大限度地減少頂?shù)装迨鹿事省?lt;/p><p> 7 煤炭地下氣化技術(shù)</p><p&g
19、t; 煤炭地下氣化技術(shù)是將處于地下的煤炭進(jìn)行有控制的燃燒,通過(guò)對(duì)煤的熱化學(xué)作用而產(chǎn)生可燃?xì)怏w的過(guò)程。煤炭地下氣化技術(shù)屬于一種特殊的采煤方法,它屬國(guó)際首創(chuàng)。煤炭地下氣化技術(shù)具有投資少、工期短、見(jiàn)效快、用人少、效率高、成本低、效益好等優(yōu)點(diǎn),尤其適合我國(guó)煤礦地質(zhì)條件復(fù)雜、劣質(zhì)煤比例高、“三下”壓煤嚴(yán)重的具體國(guó)情,具有廣闊的推廣應(yīng)用前景。應(yīng)繼續(xù)研究完善“長(zhǎng)通道、大斷面、兩階段”和“礦井式氣化”兩種典型煤炭地下氣化工藝,進(jìn)行較大規(guī)模的地下氣化試
20、驗(yàn)研究,摸索實(shí)現(xiàn)“兩個(gè)控制、三個(gè)穩(wěn)定”的技術(shù)途徑,并實(shí)現(xiàn)連續(xù)、穩(wěn)定生產(chǎn)探索應(yīng)用的途徑。</p><p><b> 附 錄B</b></p><p><b> 英文翻譯(譯文)</b></p><p> Nowadays science and technology the new situation of the
21、economic development under, coal's mining a technical research has to be faced to domestic foreign two markets and faced to was constuct by main battlefield, have a foothold in the coal mine technical of before follo
22、w, have a foothold the development is in the Chinese coal strategy necessity of technique storage, have a foothold strategic in the long-term development in the coal industry have to of the key offends a pass technically
23、, have </p><p> 1 adopt the coal method and craft</p><p> Adopt the coal method and the progress of the craft with perfect is the topic that the always opencast academics develop.The developme
24、nt that adopts the coal craft will arouse the change that the coal mines each link, modern's adopting the development direction of the coal craft is high to produce,efficiently,high safety with high and dependable, t
25、he basic path makes to adopt a high new technique of the coal technique and modern to combine together, studying to destrong dint,efficiently,safety,c</p><p> Develop coal mine efficiently intensive turn a
26、production technique,the construction produce height concentration,high credibility of high produce efficiently the mineral well to mine a technique.Produce by raising the work noodles list and produce concentration to c
27、hange into core, with lift high-efficiency with economic performance for target, study to develop under various condition of high performance,the high credibility adopt the coal material and craft, simple,efficiently,dep
28、endable produ</p><p> (2)the development"shallow cover up deeply, hard crest the plank,hard coal seam is high to produce efficiently modern mine a set a technique", mainly solve a following techni
29、que hard nut to crack.</p><p> Hard crest the plank control technique, the research covers up a depth,ground to press a small hard and thick crest the plank control technique, mainly pressing and tilting
30、to one side deep bore to blow up through the rock strata definite direction water power etc. crest the plank dispatch a technique, make direct crest can with adopt with emit, exaltation crest the coal recovery rate, and
31、the basic crest can press certain step to be apart from to fall, since be advantageous to a coal broken up</p><p> Hard and thick crest the coal control technique, the research development covers up a depth
32、 and pays to accept a hard and thick crest of small condition of pressure the dispatch of coal technique, including high pressure to note the water pressure technique and crest coal deep bore to prepare to blow up the pr
33、ocessing technique, make a coal physique with adopt with emit, raise its recovery rate.</p><p> Crest the coal emit to put sex bad,piece degree the big release to adopt a set the equipments kit technique,
34、develop since be advantageous to a coal broken up with crest plank control, and then be advantageous to the new liquid that puts a crest coal to press a support, the empress of the reasonable assurance the department tra
35、nsport function dint.</p><p> Under two hard conditions put a coal to mine fast push forward a technique, study suitable to release to adopt back to adopt a craft, excellent chemical engineering preface, s
36、horten to put the coal time, exaltation the work noodles of the propulsion degree, carry out high produce efficiently.The 5-5.5 m breadth coal lane anchor man pole protects a technique, protecting the technical research
37、development and application through the breadth coal lane anchor man pole, be advantageous to the adopts </p><p> (3)tilt to one side long wall of thin coal seam to mine slowly.Main research development:The
38、 physical volume is small,power the thin coal seam of[with] big and high credibility adopt coal machine and plane coal machine;The liquid that develops to suit to plane the coal machine to adopt presses a support;The re
39、search develops the total kit technique of the thin coal seam work noodles with mine a technique efficiently.</p><p> (4)tilt to one side thick coal seam slowly once to adopt whole thick adopt high and lon
40、g wall to adopt greatly.Should strengthen the perfect support structure and strength further, add a strong support to defend to pour,antiskid,keep a beam from sew to open with four connect a pole to transform,prevent
41、6;from the serious damage jack measure research of[with] etc., suggest the credibility of the high support, contract the margin that it is high with medium thick coal seam(adopt a high 3 ms or so) t</p><p>
42、 (5)various adopt high produce efficiently to adopt equipments guarantee system.Want to carry out to be high to produce efficiently, will raise to switch on a rate, to the "support- round a rock" system,adopt t
43、he luck equipments to carry on supervision.The point that will study from now on BE:Manipulate a support and change through the electricity liquid control valve set well"support- round a rock" system control, t
44、he further perfect liquid presses an information,the support ,crest plank appeara</p><p> 2 deep mineral wells mine a technique</p><p> The key technique that the deep mineral well mine BE:The
45、 mineral that the coal seam mine presses a control,pound at ground to press the prevention and cure,gas and heat to harm to manage and the deep well breeze,the well lane decoration...etc.;Demand's offending what pass
46、 study BE:The deep well rounds the rock appearance with should the dint field and distribute the characteristic of the appearance;The variety of homework place work environment in deep well;The deep well tunnel(especiall
47、y soft r</p><p> 3 three times"s adopt a coal technique</p><p> The exaltation number imitates the calculation and alike material to imitate etc., the thorough research mines to exercise
48、to sink to sink regulation and earth's surface up the rock strata, studying a full foot earth's surface,building,the groundwater resources protection to need of reasonable of mine system with excellent turn param
49、eter, develop to sink to decline the control theories and the key technique, include to use the earth's surface waste toward to fall the method work noodles to adopt</p><p> 4 excellent turn the tunnel
50、decoration, reduce the stone to exhaust of mine a technique</p><p> Improvement,perfect and existing adopt the coal method and mine a decoration, with the realization mine a performance biggest change into
51、a target, research development the coal mine geology condition mine the tunnel decoration and the craft technique evaluation system expert system, carrying out to mine method,mine to decoration and the coal seam geology
52、condition of superior match.</p><p> Summary expansion the absolute being group big LIU3 TA3 GONG3 ,the Anne Tsun mineral practice the whole coal lane to set out single coal seam to mine, the stone basic
53、 not deliver a ground of side, produce system consumedly simplify, respectively carry out to have no a track gum round,single track hang an assistance to transport a dragon, from the mouth of a well go directly to the wo
54、rk noodles, in the meantime carry out adopt to dig a synchronous development with , produce an efficiency signi</p><p> 5 adopt a field to round a rock control technique</p><p> (1)further pe
55、rfect adopt a field to round rock control theories.With science is reasonable and excellent to turn efficiently of the rock strata control technique to promise a safety of mine the activity,efficiently,low cost is target
56、, thorough summary our country the mineral mountain pressure of several decades research result, with theories analysis(solution the method),modern mathematics mechanics(statistics analysis estimate,the number method) wi
57、th measure a method to combine together the usa</p><p> (2)study a strong and tough crest plank the lath piece to descend the applied high technique low cost rock strata control technique with the broken up
58、 crest. Currently, because of applied high press to note a water,deep bore to prepare to blow up to handle a strong and tough crest plank and applied the chemistry reinforce the technique existence craft complications,co
59、st high problem, as a result need the further research development a new technique,new craft,new material to resolve these problem</p><p> (3)put a coal to mine the rock strata and support-round rock intera
60、ction mechanism.Research's putting a coal to mine mechanics model and rounding a rock should the dint,crest mechanism with broken up coal,the support-crest coal-direct crest-basic crest interaction relation;Make use
61、of a long-lost dollar the etc. method research crest coal to put to fall regulation, put forward put coal is excellent to turn standard and exaltation a crest the coal recovery rate of path.</p><p> (4)pay
62、 to protect the quality and crest plank dynamic state monitor technique.In the aspects of tally up slowly tilt to one side win thickly grow wall work noodles openning the exhibition to protect the quality and crest plank
63、 dynamic state monitor, should further at strong and tough crest the plank,broken up crest plank,nasty tilt to one side and put a coal work noodles to open the exhibition to protect the quality and crest plank dynamic st
64、ate monitor, in the meantime should continuously perfe</p><p> (5)pound at ground the estimate and the prevention and cure for press.Pass the mechanism that the calculator emulation research impact mineral
65、presses to present occurrence;Finish to pound at sex mineral to press to present monitor system well further, develop to control from a distance measure and forecast a technique, the perfect impact mineral press comprehe
66、nsive prevention and cure measure of excellent turn choice expert system.</p><p> (6)the research develop to pay to protect an equipments newly.Study the hard coal seam,hard crest plank puts a coal liquid
67、to press a support, the perfect liquid presses the support function with move a system quickly, develop to bear cannon to collapse,the light type turn single body fluid to press to pay pillar with the thick coal seam tun
68、nel anchor man and the flexible anchor man pole.</p><p> 6 small coal mine technique reformation and mechanization mine a technique</p><p> Carry out the nation closes small coal mine, elimin
69、ating to fall behind the production technique and producing an equipments, raising the technique policy of the single well scale equally, develop small scaled coal mine mechanization,the half mechanization to mine the te
70、chnique and material, improve small coal mine to adopt the coal method with mine a craft, the list that raises to adopt the coal work noodles produces with the work effect;Raise the crest of the small coal mine scaleboar
71、d control</p><p> 7 coal underground gasify a technique</p><p> The coal underground's gasifying a technique is the coal that will be placed in an underground to carry on the combustion th
72、at has a control, passing to the hot chemical effect of the coal but producing can the process of the air.The coal underground gasification technique belong to a kind of adopt the coal method specially, it belongs to nat
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