本文選題：靜電災(zāi)害　切入點(diǎn)：粉體材料　出處：《南京理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：為了研究粉體工業(yè)生產(chǎn)過程中的靜電危險(xiǎn)性,本文通過測(cè)定粉體材料的電阻率參數(shù)及影響規(guī)律、設(shè)計(jì)粉體物料靜電積累過程模擬實(shí)驗(yàn)的方法對(duì)工業(yè)生產(chǎn)過程中的靜電特性進(jìn)行了研究。首先,通過粉體電阻率測(cè)試裝置研究了粒徑對(duì)石英砂、RDX、HMX電阻率的影響,分析了不同測(cè)試方法及粉體物理參數(shù)等對(duì)試驗(yàn)結(jié)果的影響；然后,通過靜電滑槽實(shí)驗(yàn)研究了樣品質(zhì)量、滑槽長(zhǎng)度、滑槽傾斜角度、滑槽材質(zhì)和加料速度對(duì)于靜電電荷積累量的影響；通過過篩實(shí)驗(yàn),研究了樣品質(zhì)量、標(biāo)準(zhǔn)篩孔徑對(duì)玉米粉、小麥粉、RDX靜電電荷積累量的影響,研究了含水量對(duì)玉米粉、小麥粉靜電電荷積累量的影響,研究了樣品粒徑對(duì)RDX、HMX靜電電荷積累量的影響；同時(shí)還通過靜電火花感度實(shí)驗(yàn),分析了超細(xì)化處理對(duì)RDX靜電火花感度的影響。實(shí)驗(yàn)結(jié)果表明,粉體靜電電荷積累量與樣品質(zhì)量存在線性增長(zhǎng)關(guān)系。同時(shí),粉體經(jīng)滑槽摩擦之后的靜電電荷積累量隨著加料速度的增加而減小,隨著滑槽長(zhǎng)度的增長(zhǎng)而增大。粉體中的水分對(duì)摩擦起電靜電電荷積累起到明顯的抑制作用。粉體粒度越小,靜電電荷積累越明顯。不同測(cè)試裝置下,粉體材料的電阻率大小并不相同。使用三極圓環(huán)法測(cè)得的電阻率值與兩極試驗(yàn)槽法所得結(jié)果相比小一個(gè)數(shù)量級(jí)。粉體材料的電阻率隨粉體粒徑的減小有明顯的增大趨勢(shì)。RDX經(jīng)超細(xì)化處理之后的靜電火花感度較工業(yè)級(jí)狀態(tài)下更低。最后,根據(jù)模擬實(shí)驗(yàn)研究的結(jié)果與結(jié)論,本文進(jìn)一步對(duì)粉體工業(yè)生產(chǎn)過程中的靜電帶電體進(jìn)行了分析,比較了不同靜電放電類型的放電特點(diǎn)與引發(fā)條件,預(yù)測(cè)了粉體工業(yè)生產(chǎn)中可能出現(xiàn)的靜電危害。針對(duì)論文的測(cè)試和分析結(jié)果,從減少靜電產(chǎn)生和實(shí)現(xiàn)靜電充分消散兩方面,系統(tǒng)地提出了一些用于工業(yè)生產(chǎn)過程中預(yù)防靜電危害的對(duì)策措施,論文工作、結(jié)論能為粉體工業(yè)生產(chǎn)過程中的靜電危害預(yù)防和治理提供參考和幫助。
[Abstract]:In order to study the electrostatic hazard in the process of powder production, the resistivity parameters and the influence law of powder materials were measured. The electrostatic characteristics in industrial production process were studied by designing a simulation experiment of electrostatic accumulation process of powder materials. Firstly, the influence of particle size on the resistivity of quartz sand RDX HMX was studied by means of the powder resistivity test device. The influence of different testing methods and physical parameters of powder on the test results was analyzed, and then the sample quality, chute length and sloping angle of the chute were studied by the electrostatic chute experiment. The effects of sample quality and standard sieve aperture on electrostatic charge accumulation of corn flour and wheat flour RDX were studied by sifting experiments. The effect of sample size on electrostatic charge accumulation of wheat flour was studied, and the effect of superfine treatment on RDX electrostatic spark sensitivity was also analyzed. The electrostatic charge accumulation of powder increases linearly with the sample quality, and the electrostatic charge accumulation decreases with the increase of feeding speed. With the increase of the length of the chute, the water in the powder obviously inhibited the electrostatic charge accumulation. The smaller the particle size of the powder, the more obvious the electrostatic charge accumulation. The resistivity of powder material is not the same. The resistivity value measured by three-pole ring method is one order of magnitude smaller than that obtained by two-pole test tank method. The resistivity of powder material increases obviously with the decrease of powder particle size. The electrostatic spark sensitivity of RDX after ultrafine treatment is lower than that of industrial grade. Finally, Based on the results and conclusions of the simulation experiments, the electrostatic charge in powder industrial production is further analyzed, and the discharge characteristics and initiation conditions of different electrostatic discharge types are compared. The possible electrostatic hazards in powder industrial production are predicted. In view of the test and analysis results of the paper, the static electricity is reduced and the static electricity is fully dissipated. Some countermeasures and measures for the prevention of electrostatic hazards in industrial production are put forward systematically. The work of the paper can provide reference and help for the prevention and treatment of electrostatic hazards in powder industrial production.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TB383.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 周本謀;范寶春;;靜電放電火花點(diǎn)燃危險(xiǎn)性分級(jí)方法研究[J];北京理工大學(xué)學(xué)報(bào);2005年S1期

2 黨君祥,李剛,鄧煦帆;粉體靜電起電的試驗(yàn)研究[J];中國(guó)粉體技術(shù);2001年03期

3 周本謀,劉尚合,范寶春;靜電放電火花能量耦合特性研究[J];高電壓技術(shù);2004年04期

4 劉尚合;宋學(xué)君;;靜電及其研究進(jìn)展[J];自然雜志;2007年02期

，

本文編號(hào)：1569594