本文選題：試驗(yàn)測(cè)試 + 粉碎室��； 參考：《內(nèi)蒙古科技大學(xué)》2015年碩士論文

【摘要】：飼料粉碎機(jī)是飼料加工過(guò)程中重要設(shè)備之一，由于錘片式粉碎機(jī)具有良好的通用性、結(jié)構(gòu)簡(jiǎn)單、價(jià)格便宜、適應(yīng)性強(qiáng)、工作可靠等優(yōu)勢(shì)，得以廣泛應(yīng)用。因粉碎室內(nèi)存在物料環(huán)流層，造成物料升溫大、耗能高和物料過(guò)粉碎等諸多問(wèn)題。為了使傳統(tǒng)錘片式粉碎機(jī)存在的問(wèn)題得以解決，新型錘片式飼料粉碎機(jī)采用了不同于常規(guī)的粉碎和分離方式，將環(huán)形齒板安裝在粉碎室內(nèi)壁，通過(guò)齒板和錘片的摩擦及擊打來(lái)粉碎物料，并在上置的分離裝置中對(duì)物料進(jìn)行分離。在粉碎機(jī)粉碎室中，良好的多相流場(chǎng)結(jié)構(gòu)和特性是物料被合理粉碎、順利輸送和回收的必要條件，是影響粉碎機(jī)物料粉碎、分離和功耗的重要因素，因此，，對(duì)新型錘片式粉碎機(jī)粉碎室內(nèi)多相流場(chǎng)特性的研究是研究粉碎機(jī)粉碎機(jī)理、篩分機(jī)理以及對(duì)整機(jī)進(jìn)行優(yōu)化設(shè)計(jì)的關(guān)鍵所在。 本文將從三個(gè)方面對(duì)粉碎室內(nèi)流場(chǎng)壓強(qiáng)分布進(jìn)行研究： （1）基于虛擬儀器技術(shù)，設(shè)計(jì)一套關(guān)于粉碎機(jī)粉碎室內(nèi)氣壓測(cè)量的測(cè)試系統(tǒng)，包括儀器選型、測(cè)量點(diǎn)分布、傳感器安裝、傳感信號(hào)引出、傳感器標(biāo)定、主軸轉(zhuǎn)速標(biāo)定和數(shù)據(jù)采集等，并對(duì)粉碎室進(jìn)行測(cè)量試驗(yàn)，記錄原始測(cè)量數(shù)據(jù)。 （2）利用LABVIEW強(qiáng)大的數(shù)據(jù)和信號(hào)分析工具對(duì)采集到的壓強(qiáng)信號(hào)做數(shù)字信號(hào)處理。針對(duì)采集信號(hào)特點(diǎn)（有用信號(hào)為低頻），設(shè)計(jì)一個(gè)集成的虛擬數(shù)字濾波器，得到原始信號(hào)中的有用成分，并記錄數(shù)據(jù)，對(duì)數(shù)據(jù)結(jié)果整理并做比較分析。 （3）將測(cè)量數(shù)據(jù)點(diǎn)圖形化，用6個(gè)圖形化的平行描述截面來(lái)表達(dá)粉碎室空間的壓強(qiáng)強(qiáng)度的大小和分布。鑒于所測(cè)量的數(shù)據(jù)點(diǎn)有限，本文將采用遺傳算法和BP神經(jīng)網(wǎng)絡(luò)結(jié)合的方法推測(cè)和補(bǔ)充未知數(shù)據(jù)點(diǎn)，根據(jù)足夠多的數(shù)據(jù)點(diǎn)描繪出描述截面的壓強(qiáng)強(qiáng)度圖，分析得出結(jié)論。
[Abstract]:Feed pulverizer is one of the important equipment in the process of feed processing. It is widely used because of its good versatility, simple structure, low price, strong adaptability and reliable operation. There are many problems in crushing room, such as high temperature, high energy consumption and over crushing. In order to solve the problems existing in the traditional hammer mill, the new type hammer feed mill adopts the different comminution and separation methods, and the ring tooth plate is installed on the wall of the crushing chamber. The material is crushed by friction and impact of the tooth plate and hammer, and separated in the upper separation device. In the comminution chamber of pulverizer, good multiphase flow field structure and characteristics are the necessary conditions for material to be comminuted, transported and recovered smoothly, and are the important factors that affect the crushing, separation and power consumption of pulverizer material. The study on the characteristics of multi-phase flow field in the grinding chamber of a new type of hammer mill is the key to the study of the mechanism of grinding, screening mechanism and optimization design of the whole machine. In this paper, the pressure distribution of flow field in crushing chamber is studied from three aspects: Based on the virtual instrument technology, the paper designs a test system about the pressure measurement in the pulverizer crushing chamber, including instrument selection, measurement point distribution, sensor installation, sensor signal extraction, sensor calibration. The spindle speed is calibrated and data collected, and the raw measurement data are recorded by measuring and testing the comminution chamber. 2) using the powerful data and signal analysis tool of LABVIEW to process the collected pressure signal. According to the characteristics of the collected signal (the useful signal is low frequency), an integrated virtual digital filter is designed to obtain the useful components of the original signal and record the data. (3) the measurement data points are graphed and the size and distribution of the pressure intensity in the comminution chamber space are expressed by six graphical parallel sections. In view of the limited number of measured data points, the method of combining genetic algorithm and BP neural network is used to speculate and supplement the unknown position. According to enough data points, the pressure intensity diagram describing the section is described, and the conclusion is obtained by analysis.
【學(xué)位授予單位】：內(nèi)蒙古科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：S817.122

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 滕汜穎,李永光,周偉國(guó),馬昕霞;氣固兩相流動(dòng)測(cè)量技術(shù)的現(xiàn)狀與展望[J];上海電力學(xué)院學(xué)報(bào);2002年04期

2 朱建東;錘片和篩板的不同參數(shù)對(duì)粉碎機(jī)性能的影響[J];飼料工業(yè);1998年12期

3 藍(lán)發(fā)超;王洪;;基于Matlab的遺傳算法程序設(shè)計(jì)[J];廣西物理;2008年01期

4 謝三毛;基于LabVIEW虛擬數(shù)字濾波器的設(shè)計(jì)[J];華東交通大學(xué)學(xué)報(bào);2005年01期

5 黃志堯,金寧德,李海青;層析成像技術(shù)在多相流檢測(cè)中的應(yīng)用[J];化學(xué)反應(yīng)工程與工藝;1996年04期

6 何桂春,黃開啟,倪文;基于MATLAB遺傳神經(jīng)網(wǎng)絡(luò)的實(shí)現(xiàn)及其在磨機(jī)故障診斷中的應(yīng)用[J];礦山機(jī)械;2005年10期

7 劉曼茹;錘片式飼料粉碎機(jī)的研究[J];糧油加工與食品機(jī)械;1986年07期

8 王德福,馬力;通風(fēng)量對(duì)錘片粉碎機(jī)工作性能的影響[J];農(nóng)機(jī)化研究;2004年02期

9 劉文廣;劉偉峰;;梯形篩片對(duì)錘片式粉碎機(jī)性能影響的試驗(yàn)研究[J];農(nóng)機(jī)化研究;2006年11期

10 王靜;廖慶喜;田波平;廖宜濤;吳福通;;高速攝像技術(shù)在我國(guó)農(nóng)業(yè)機(jī)械領(lǐng)域的應(yīng)用[J];農(nóng)機(jī)化研究;2007年01期

相關(guān)博士學(xué)位論文 前2條

1 曹麗英;新型錘片式粉碎機(jī)物料分離特性的模擬與測(cè)試分析[D];內(nèi)蒙古農(nóng)業(yè)大學(xué);2010年

2 譚超;基于多傳感器融合的兩相流參數(shù)測(cè)量方法[D];天津大學(xué);2010年

本文編號(hào)：1977034