本文關(guān)鍵詞：平煤器的優(yōu)化設(shè)計(jì)與控制研究　出處：《河北工程大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 平煤器 離散元分析 仿真 三維建模 PLC控制

【摘要】：煤礦產(chǎn)煤運(yùn)輸過(guò)程中,由于裝煤方式的限制,導(dǎo)致煤料在列車廂內(nèi)部高低不平,并出現(xiàn)灑落現(xiàn)象,所以在運(yùn)輸前須將車廂內(nèi)部煤料進(jìn)行相應(yīng)的平整,避免運(yùn)輸途中出現(xiàn)煤料飛揚(yáng)現(xiàn)象的發(fā)生,提高運(yùn)載效率和安全可靠性[1]。目前,煤炭裝車系統(tǒng)普遍存在裝車質(zhì)量差、效率低、自動(dòng)化程度低、工人勞動(dòng)強(qiáng)度大、平煤裝置易變性失效等諸多問(wèn)題[2]。因此需要加以改進(jìn)。傳統(tǒng)平煤板一般是長(zhǎng)方形刮板,簡(jiǎn)單的平面對(duì)于塊煤平整問(wèn)題不僅效率低而且易變型,本文以平煤板的外形設(shè)計(jì)、結(jié)構(gòu)優(yōu)化以及控制原理為研究對(duì)象,著重分析平煤板工作過(guò)程中的受力,并利用有限元軟件進(jìn)行微觀仿真。運(yùn)用離散元分析方法對(duì)平煤過(guò)程中的運(yùn)動(dòng)力學(xué)和接觸力學(xué)進(jìn)行分析,在確定煤料模型的基礎(chǔ)上對(duì)煤料的運(yùn)動(dòng)規(guī)律和相互作用力的變化規(guī)律進(jìn)行理論分析。根據(jù)煤料顆粒實(shí)際參數(shù),利用PFC3D軟件對(duì)裝車過(guò)程進(jìn)行模型建立,對(duì)平煤過(guò)程進(jìn)行動(dòng)態(tài)仿真,獲得在不同時(shí)刻煤料的微觀分布圖以及相互作用力的變化。對(duì)以上理論的研究可以為平煤板的結(jié)構(gòu)優(yōu)化提供理論依據(jù)。本文針對(duì)裝車系統(tǒng)存在的裝車質(zhì)量差和平煤設(shè)備易變型主要問(wèn)題,在塊煤平整方面進(jìn)行了新型平煤板的設(shè)計(jì)。對(duì)平煤器整體設(shè)備進(jìn)行基于Proe三維建模軟件的設(shè)計(jì)以及對(duì)輔助設(shè)備的選型,直觀的了解平煤器各部分的工作和連接方式。為了提高設(shè)備的自動(dòng)化程度,編制設(shè)計(jì)相應(yīng)的PLC控制程序?qū)ζ矫浩鞲鞑糠诌M(jìn)行自動(dòng)控制,自動(dòng)控制相應(yīng)部分按照平整流程進(jìn)行先后動(dòng)作。不同煤礦對(duì)平整后的煤料有不同的標(biāo)記規(guī)定,針對(duì)選煤廠的標(biāo)準(zhǔn),設(shè)計(jì)了自動(dòng)噴灑裝置,進(jìn)行平整標(biāo)記。降低勞動(dòng)強(qiáng)度和成本,提高裝車效率。工業(yè)試驗(yàn)表明,新型平煤系統(tǒng)的設(shè)計(jì),不僅解決了易變型問(wèn)題,同時(shí)平整效果有了較大改善,自動(dòng)控制程序的使用提高了設(shè)備運(yùn)行可靠性,降低生產(chǎn)成本。
[Abstract]:The coal mines in the process of transportation, due to the limitation of coal, resulting in coal in the train compartment inside the rugged, and falling phenomenon, so the transport should be accordingly smooth inside the coal transportation, avoid occurrence of coal dust phenomenon, improve transport efficiency and safety and reliability of [1]. At present, there are many problems in the coal loading system, such as poor loading quality, low efficiency, low automation, large labor intensity and inefficiency of Pingdingshan coal plant, [2]. Therefore, it needs to be improved. The traditional coal leveling plate is generally rectangular scraper, a simple plane for coal Unknitting problem not only low efficiency and easy to form, taking shape design, Pingdingshan plate structure optimization and control principle as the research object, focuses on the analysis of the working process of the coal leveling plate in force, and micro simulation by finite element software. Discrete element analysis is applied to analyze the movement mechanics and contact mechanics in the process of coal leveling. Based on the coal material model, the law of the motion and interaction force of the coal is analyzed theoretically. According to the actual parameters of coal particles, the PFC3D software is applied to model the loading process, and the dynamic simulation of the coal leveling process is carried out to get the microscopic distribution map and interaction force of coal at different times. The research on the above theory can provide a theoretical basis for the optimization of the structure of flat coal. Aiming at the problems of poor quality of loading and loading system of peace coal equipment main problems easy to form, in the aspects of the design of a new type of flat coal coal leveling plate. Based on the Proe 3D modeling software and the selection of auxiliary equipment, we can intuitively understand the work and connection mode of all parts of the coal leveler. In order to improve the automation level of the equipment, the corresponding PLC control program is programmed to control the parts of the coal leveler automatically, and the corresponding parts are automatically controlled according to the smoothing process. Different coal mines have different marking regulations on the coal after leveling. According to the standard of the coal preparation plant, an automatic spraying device is designed to carry out the leveling mark. Reduce labor intensity and cost and improve the efficiency of loading. The industrial test shows that the design of the new flat coal system not only solves the problem of easy transformation, but also improves the leveling effect. The use of automatic control program improves the reliability of the equipment and reduces the production cost.
【學(xué)位授予單位】：河北工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TD634

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 夏亞慧;楊學(xué)民;信延才;孫濤;;一種安全高效的平煤裝置[J];科技傳播;2014年19期

2 趙新平;;選煤廠裝車自動(dòng)平煤裝置的研究與應(yīng)用[J];中國(guó)煤炭;2013年12期

3 侯俊梅;;鐵路裝車平煤器的性能技術(shù)改造[J];煤;2012年06期

4 侯波波;楊珍珍;王圣林;;裝車站平煤裝置的改進(jìn)及有限元分析[J];煤礦機(jī)械;2012年05期

5 陳寇忠;雷汝海;胡志強(qiáng);;基于S7-300PLC的煤炭裝車自動(dòng)控制系統(tǒng)[J];煤炭技術(shù);2012年05期

6 孫丙科;劉睿;牛小兵;貴明鑫;;基于PLC的鐵路裝車自動(dòng)化控制系統(tǒng)設(shè)計(jì)[J];工礦自動(dòng)化;2011年02期

7 孫春平;李世忠;周旭升;;雙向防撞平煤器的研制與應(yīng)用[J];礦山機(jī)械;2010年22期

8 劉紅賓;;超化礦西煤場(chǎng)平煤器的改造[J];煤礦機(jī)械;2010年06期

9 姚偉;閔建國(guó);殷大力;秦丹;;改進(jìn)后的平煤裝置在望峰崗選煤廠的應(yīng)用[J];煤炭加工與綜合利用;2010年02期

10 劉龍飛;;機(jī)械平煤器的安全設(shè)計(jì)[J];煤礦機(jī)械;2009年02期

相關(guān)博士學(xué)位論文 前1條

1 張銳;基于離散元細(xì)觀分析的土壤動(dòng)態(tài)行為研究[D];吉林大學(xué);2005年

相關(guān)碩士學(xué)位論文 前2條

1 張帥帥;一種新型火車自動(dòng)裝車系統(tǒng)的設(shè)計(jì)與研究[D];山東大學(xué);2012年

2 蘇永紅;異型面平煤裝置的特性分析與結(jié)構(gòu)優(yōu)化[D];太原理工大學(xué);2011年

，

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