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Research On ESD Characteristics Of Florfenicol And Tilmicosin

Posted on:2017-02-28Degree:MasterType:Thesis
Country:ChinaCandidate:Z K ZhangFull Text:PDF
GTID:2311330488497426Subject:Mechanical and electrical engineering
Abstract/Summary:PDF Full Text Request
With the development of domestic and foreign powder technology, various industries powder material is more and more widely used in various national economic sectors. In the process of powder production, transportation and processing, as contact friction and impact of the powder or powder and equipment, containers,powder will bring a lot of static electricity. The essence of dust electrostatic is residual electric charge. Electric charge is all physical in nature about electrostatic phenomenon. voltage,current and other related quantity is a physical quantity caused by movement of the electric charge. Electrostatic discharge can form high potential, strong electric field and instantaneous large current,so it as the ignition source can release large amounts of energy at the moment, most probably caused by combustible dust ignition or explosion.In this paper, the quantitative test of spark sensitivity was carried out by using two typical drug dusts,further study on the physical properties and thermal analysis of veterinary drug powder to study its electrostatic sensitivity.And building simulation process experimental platform,the experimental study on the friction between transport pipeline and veterinary drug powder under gravity and storage device of air dusting friction.Finally, the article analyzes the existence of the electrostatic safety hidden trouble of veterinary drug powder.The results show that electrostatic leakage current increase with the diameter of the pipe and the growth of the length about the single Veterinary medicine powder; With the increase of slope Angle, static leakage current increase after the first increase; Galvanized iron pipe leakage current is greater than the PVC tuber. The MIE of single Veterinary medicine powder along with the change of mass concentration showed a trend of the change of the conic. The trend of test results of Veterinary medicine powder mixed is consistent with single veterinary medicine dust.In two kinds of powder dusting process,the leakage current is larger than the dusting down slightly from the bottom to the leakage current on the powder.The ratio of 1:1 powder injection mixed leakage current is more obvious than many single test.For the installation of conducting bar test, static loading powder produced decreased significantly.
Keywords/Search Tags:Electrostatic discharge, Veterinary medicine powder, Dust friction, Dust cloud, Electric spark sensitivity
PDF Full Text Request
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