本文選題：試驗測試 + 粉碎室�。� 參考：《內(nèi)蒙古科技大學》2015年碩士論文

【摘要】：飼料粉碎機是飼料加工過程中重要設備之一，由于錘片式粉碎機具有良好的通用性、結(jié)構(gòu)簡單、價格便宜、適應性強、工作可靠等優(yōu)勢，得以廣泛應用。因粉碎室內(nèi)存在物料環(huán)流層，造成物料升溫大、耗能高和物料過粉碎等諸多問題。為了使傳統(tǒng)錘片式粉碎機存在的問題得以解決，新型錘片式飼料粉碎機采用了不同于常規(guī)的粉碎和分離方式，將環(huán)形齒板安裝在粉碎室內(nèi)壁，通過齒板和錘片的摩擦及擊打來粉碎物料，并在上置的分離裝置中對物料進行分離。在粉碎機粉碎室中，良好的多相流場結(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，是影響粉碎機物料粉碎、分離和功耗的重要因素，因此，，對新型錘片式粉碎機粉碎室內(nèi)多相流場特性的研究是研究粉碎機粉碎機理、篩分機理以及對整機進行優(yōu)化設計的關(guān)鍵所在。 本文將從三個方面對粉碎室內(nèi)流場壓強分布進行研究： （1）基于虛擬儀器技術(shù)，設計一套關(guān)于粉碎機粉碎室內(nèi)氣壓測量的測試系統(tǒng)，包括儀器選型、測量點分布、傳感器安裝、傳感信號引出、傳感器標定、主軸轉(zhuǎn)速標定和數(shù)據(jù)采集等，并對粉碎室進行測量試驗，記錄原始測量數(shù)據(jù)。 （2）利用LABVIEW強大的數(shù)據(jù)和信號分析工具對采集到的壓強信號做數(shù)字信號處理。針對采集信號特點（有用信號為低頻），設計一個集成的虛擬數(shù)字濾波器，得到原始信號中的有用成分，并記錄數(shù)據(jù)，對數(shù)據(jù)結(jié)果整理并做比較分析。 （3）將測量數(shù)據(jù)點圖形化，用6個圖形化的平行描述截面來表達粉碎室空間的壓強強度的大小和分布。鑒于所測量的數(shù)據(jù)點有限，本文將采用遺傳算法和BP神經(jīng)網(wǎng)絡結(jié)合的方法推測和補充未知數(shù)據(jù)點，根據(jù)足夠多的數(shù)據(jù)點描繪出描述截面的壓強強度圖，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.
【學位授予單位】：內(nèi)蒙古科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：S817.122

【參考文獻】

相關(guān)期刊論文 前10條

1 滕汜穎,李永光,周偉國,馬昕霞;氣固兩相流動測量技術(shù)的現(xiàn)狀與展望[J];上海電力學院學報;2002年04期

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

3 藍發(fā)超;王洪;;基于Matlab的遺傳算法程序設計[J];廣西物理;2008年01期

4 謝三毛;基于LabVIEW虛擬數(shù)字濾波器的設計[J];華東交通大學學報;2005年01期

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

6 何桂春,黃開啟,倪文;基于MATLAB遺傳神經(jīng)網(wǎng)絡的實現(xiàn)及其在磨機故障診斷中的應用[J];礦山機械;2005年10期

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

8 王德福,馬力;通風量對錘片粉碎機工作性能的影響[J];農(nóng)機化研究;2004年02期

9 劉文廣;劉偉峰;;梯形篩片對錘片式粉碎機性能影響的試驗研究[J];農(nóng)機化研究;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)在我國農(nóng)業(yè)機械領(lǐng)域的應用[J];農(nóng)機化研究;2007年01期

相關(guān)博士學位論文 前2條

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

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

本文編號：1977034