【作者】 李超；

【导师】 李田泽； 张国良；

【作者基本信息】 山东理工大学 ， 检测技术与自动化装置， 2012， 硕士

【摘要】 陶瓷生产企业源源不断的给人们提供各种优质产品的同时也不断的产生着大量陶瓷粉尘,国家规定的粉尘健康标准10mg／m3,而大多陶瓷生产企业厂房环境中粉尘浓度超标。陶瓷粉尘的危害性很大,长时间在超标环境中可诱发尘肺病,每年因陶瓷粉尘危害而造成的人员伤亡数量极大,也给国家造成了巨大的经济损失。因此,本文提出针对陶瓷厂房中的粉尘浓度检测进行研究。本论文的研究内容主要包括以下几个方面：1.陶瓷粉尘颗粒特性的研究。首先比较了国内外粉尘浓度测量方法的优缺点,找出陶瓷粉尘浓度测量的最优方法；其次,研究陶瓷粉尘颗粒的一些特性,包括粒度性,分散性,含硅性,粉尘颗粒的数学分布等,通过研究后,为陶瓷粉尘浓度的理论研究奠定基础。2.陶瓷粉尘浓度测量的理论基础。介绍了光强散射基本理论,包括相关散射和非相关散射,消光系数和散射系数的计算公式等；采用经典的Mie散射理论对非球形散射体的散射光强进行求解,推导出陶瓷粉尘的后向散射光强与陶瓷粉尘浓度呈一定的线性关系,因此采用后向散射法来测量陶瓷粉尘浓度,这也是本检测仪的理论依据。3.陶瓷粉尘浓度测量仪研制。完成检测仪的硬件电路部分和软件部分的设计。本论文选用STC89C52RC作为核心微处理器,对单片机的外围电路进行设计,包括光电检测电路、放大电路,无线发射电路、串行通信接口电路等；软件部分在Keil软件开发环境中完成控制及计算程序的设计编写工作；利用可视化编程工具LabVIEW进行上位机控制与显示界面的设计。4.实验与分析。本论文中将该检测仪在实验室中进行了大量测试,对检测仪的参数进行了设定,可靠性、精确度均达到应用要求。在淄川一家陶瓷厂房中进行了实地测试,得到了大量的数据,并且和当地环保部门所得到的数据进行了对比,结果相差度在2%左右。实验数据表明该检测仪器达到设计要求,具有较高精度。更多还原

【Abstract】 Production enterprises of ceramic continuously provide people with various high quality products at the same time also unceasingly make a lot of ceramic dust, The dust health standard of national regulations is10mg/m3, but most ceramic production enterprises plant environment dust concentration exceed the level.The dust of ceramics are very dangerous, the over standard environment for long hours may induce pneumoconiosis disease, this paper puts forward the research of ceramic dust concentration test in ceramics factory. The following contents are mainly studied in this dissertation:1. The characteristics research of ceramic dust particle. First, look up dust concentration measurement methods at home and abroad, compared with their advantages and disadvantages, and find out the optimal method of ceramic dust concentration measurement; Secondly, research some characteristics of the ceramic dust particle, including particle granularity, dispersion, silicon content, mathematics distribution of dust particle, through the study, lay a foundation for the study of the theory of the ceramic dust concentration.2. Theoretical basis of Ceramic dust concentration measurement. Introduces the strong scattering light basic theory, including the related scattering and the related scattering, extinction coefficient and scattering coefficient calculation formula, and so on; The Mie scattering theory of classic to the spherical scattering body the scattering intensity by the dust of ceramics is deduced to the scattering intensity and ceramic dust concentration of certain linear relationship, so the method to the scattering method to measure after ceramic dust concentration, this also is the theoretical basis of the detector.3. The development of ceramic dust concentration detection instrument. Complete the hardware circuit of the detector and software of the design. This paper STC89C52RC choose as the core microprocessor, to design the periphery of the single chip microcomputer circuit, including the photoelectric detection circuit, amplifying circuit, wireless transmitting circuit, serial communication interface circuit; Software of software development environment Keil in complete control of the design and calculation program written work; The visual programming tool for LabVIEW upper machine control and display interface design.4. Test and analysis. This paper the detector will on the extensive testing, the parameters of detector set, reliability. Environmental protection of the local and the data obtained were compared, the results are degrees at about2%. The experimental data show that the testing instrument to meet the design requirements, and has a high precision.更多还原