37 KB547 KB35 KB199920252011Chen, JinpengHočevar, MarkoŠirok, Braneštevilka:4letnik:57str. 293-303ISSN:0039-2480COBISSID:11837723URN:URN:NBN:SI:doc-DLBINHLXenAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikkamena volnamachine visionmeltmerjenjemineral woolstrojni vidtalinavolume flow measurementvolumski pretokMelt volume flow measurement in the mineral-wool production process|The quality of the end product in mineral wool production depends on the fiberisation process on the spinning machine. An important process variable is the fluctuation of melt volume flow from the melter. In this paper, a method for measuring melt volume flow, which is based on the measuring the diameter and flow velocity using machine vision, is presented. The velocity is measured by measuring the time of the travel of flow disturbances on two consecutive images using a correlation method. The flow disturbances are generated using a pneumatic system. The results of laboratory calibration using water as well as the results of field measurements in a mineral wool plant are presented. The field measurements were performed by comparison with the weight of the final product. The results of laboratory calibration show agreement with reference volume flow measurements with R2 = 0.96 for water. The agreement among field measured values and available comparison method is also very goodKakovost kamene volne je močno odvisna od procesa razvlaknjenja taline na centrifugi. Pomembno vlogo pri tem ima zagotavljanje enakomernosti pretoka taline, ki iz kupolne peči teče na centrifugo. Neprekinjeno merjenje pretoka taline omogoča nadzor hitrosti proizvodne linije kamene volne, kar zmanjšuje spremembe v gostoti končnega izdelka. Zaradi visokih temperatur taline se klasične metode merjenja pretoka ne uporabljajo. V prispevku predstavljamo metodo za merjenje volumskega pretoka toka taline, ki temelji na hkratni meritvi debeline curka taline in hitrosti toka z vizualizacijo. Volumski pretok taline kamene volne izračunamo iz meritve debeline in hitrosti taline z metodo vizualizacije s snemanjem slik in njihovo analizo. Premer curka taline določimo z določanjem roba curka, hitrost pa iz doline potovanja motnje med dvema zaporednima posnetima slikama z metodo križne korelacije. Za določitev hitrosti curek taline s strani po potrebi vzbudimo z motnjo, generirano s curkom stisnjenega zrakaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo