【摘要】：煤炭是我國的主體能源，2014年我國煤炭總產(chǎn)量達(dá)38.7億噸，接近全世界煤炭產(chǎn)量的一半。隨著我國經(jīng)濟(jì)的快速增長，對煤炭的需求也將逐漸上升，所以在未來很長一段時期內(nèi)，煤炭作為主體能源的地位無法取代。煤礦生產(chǎn)隨著科技進(jìn)步也向著全面自動化的方向發(fā)展，綜采工作面成套設(shè)備自動化是礦井自動化的重要內(nèi)容。 在綜采工作面，乳化液作為重要的傳遞能量的載體，其最重要的應(yīng)用便是乳化液泵站將其提供給液壓支架作為動力源。論文通過調(diào)查發(fā)現(xiàn)國內(nèi)大多數(shù)的乳化液自動配比裝置主要有以下幾個特點(diǎn)：機(jī)械式配比，結(jié)構(gòu)復(fù)雜、自動化程度低；自動化配比，選擇的執(zhí)行機(jī)構(gòu)故障率高，配比精度有限，經(jīng)常達(dá)不到濃度要求；或者其設(shè)備適應(yīng)性較差，不能靈活的調(diào)節(jié)其配比濃度；不能很好的集成于其他控制系統(tǒng)之中，沒有很好開放性等。隨著煤礦自動化程度的提高，現(xiàn)有乳化液自動配比裝置愈發(fā)暴露出很多缺點(diǎn)。 基于以上原因，論文重新設(shè)計(jì)研發(fā)了“智能型乳化液自動供配液系統(tǒng)”。系統(tǒng)選擇液位傳感器和濃度傳感器采集的數(shù)據(jù)作為反饋環(huán)節(jié)，控制齒輪泵和電磁閥為動作，進(jìn)行濃度連續(xù)可調(diào)的自動配比，整體具有自動運(yùn)行、自動診斷、即時顯示、適應(yīng)性強(qiáng)、安全可靠等特點(diǎn)。 首先設(shè)計(jì)了模塊化的乳化液液箱，將乳化油箱集成在其中，并合理安排布局，將系統(tǒng)所有的傳感器和執(zhí)行機(jī)構(gòu)全部布置在液箱設(shè)計(jì)時預(yù)留的空腔之中，也對其內(nèi)部的電氣走線以及部分機(jī)構(gòu)的安裝進(jìn)行了特別的設(shè)計(jì)，整體成型后合上相應(yīng)的蓋板，箱體干凈整潔，集成度高。 其次在電氣部分設(shè)計(jì)了組合開關(guān)，，主要包括主回路、控制回路以及保護(hù)回路的設(shè)計(jì)，并特別進(jìn)行了防爆設(shè)計(jì)，包括本質(zhì)安全型電路和隔爆外殼的設(shè)計(jì)。 基于上述硬件條件，設(shè)計(jì)了先進(jìn)的乳化液自動配置系統(tǒng)，解決了現(xiàn)有乳化液自動配比不精確的問題，并提高了系統(tǒng)工作的可靠性和穩(wěn)定性。具體設(shè)計(jì)方法為：設(shè)計(jì)先進(jìn)的傳感器信號處理方法，設(shè)計(jì)了兩種配液方案，分別為體積法配比和濃度傳感器反饋配比法，并設(shè)計(jì)了基于傳感器故障的自動配液冗余切換方案，當(dāng)傳感器損壞時自動切換到另一種工作方案繼續(xù)運(yùn)行，并且保證配液的準(zhǔn)確迅速。方案經(jīng)過后期地面實(shí)驗(yàn)和井下工業(yè)現(xiàn)場運(yùn)行驗(yàn)證都取得了良好的效果。
[Abstract]:Coal is the main source of energy in China. In 2014, China's total coal production reached 3.87 billion tons, nearly half of the world's coal production. With the rapid growth of China's economy, the demand for coal will rise gradually, so in a very long period of time in the future, the status of coal as the main energy can not be replaced. With the development of science and technology, the automation of complete sets of equipment in fully mechanized coal face is an important part of mine automation. In fully mechanized mining face, emulsion is an important carrier of energy transfer, and its most important application is that emulsion pump station provides it to hydraulic support as power source. Through investigation, it is found that most of the domestic emulsion automatic proportioning devices mainly have the following characteristics: mechanical proportioning, complex structure, low automation degree; Automatic proportioning, the selected actuator failure rate is high, the matching accuracy is limited, often can not reach the concentration requirements, or its equipment is poor adaptability, can not flexibly adjust its matching concentration; Not well integrated into other control systems, not very open, and so on. With the improvement of coal mine automation, the existing emulsion automatic proportioning device has exposed many shortcomings. For the above reasons, the paper redesigned and developed the intelligent emulsion automatic supply and distribution system. The system selects the data collected by the liquid level sensor and the concentration sensor as the feedback link, controls the gear pump and the solenoid valve as the action, carries on the concentration continuously adjustable automatic proportioning, the whole has the automatic operation, the automatic diagnosis, the real-time display, Strong adaptability, safety and reliability and other characteristics. First, the modularized emulsion tank is designed, the emulsified oil tank is integrated in it, and the reasonable arrangement is arranged. All the sensors and actuators of the system are arranged in the cavity reserved for the design of the tank. Special design is also made for the internal electrical wiring and the installation of some mechanisms. After the whole forming, the corresponding cover plate is closed, the box body is clean and tidy, and the integration level is high. Secondly, the combined switch is designed in the electrical part, including the main circuit, the control circuit and the protection circuit, and the design of explosion proof is carried out, including the design of intrinsically safe circuit and flameproof shell. Based on the above hardware conditions, an advanced emulsion automatic configuration system is designed, which solves the problem of inaccurate automatic proportion of emulsion, and improves the reliability and stability of the system. The specific design methods are as follows: the advanced sensor signal processing method is designed, two kinds of liquid distribution schemes are designed, one is volume matching method and the other is concentration sensor feedback matching method, and the automatic liquid distribution redundancy switching scheme based on sensor fault is designed. When the sensor is damaged, switch to another work plan to continue to run, and ensure the accurate and rapid distribution. After the later stage of surface experiment and underground industrial field operation verification, good results have been obtained.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TD67

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王勇;劉青;;一類遞推估計(jì)數(shù)據(jù)融合算法研究[J];國外電子測量技術(shù);2006年03期

2 柴光遠(yuǎn),王曉麗;基于模糊控制的乳化液自動配比系統(tǒng)[J];機(jī)床與液壓;2004年06期

3 楊書儀,陳立鋒;基于PLC的模擬信號數(shù)字濾波方法的研究[J];機(jī)床與液壓;2005年08期

4 張紅兵;;礦用乳化液使用中的問題與解決途徑[J];機(jī)械管理開發(fā);2009年04期

5 忻賢同;屠月娟;;正確選用過電壓阻容吸收器[J];煤礦機(jī)電;1990年02期

6 李軍霞,寇子明,楊貴元;一種新型的乳化液自動配比裝置[J];煤礦機(jī)電;2004年03期

7 張東進(jìn);趙繼云;;雙缸定比乳化液自動配制系統(tǒng)[J];煤礦機(jī)械;2006年08期

8 樊偉;;煤炭綜采自動化系統(tǒng)工程淺談[J];內(nèi)蒙古煤炭經(jīng)濟(jì);2014年05期

9 劉雷;;阻容吸收的作用[J];湖南水利水電;2012年06期

10 烏駿;袁丹青;王冠軍;劉吉春;;射流泵的發(fā)展現(xiàn)狀與展望[J];排灌機(jī)械;2007年02期

本文編號：2307438