THEORETICAL INVESTIGATIONS OF THE AIR FLOW OF THE MOVEMENT IN ITS GRAIN MIXTURES
DOI:
https://doi.org/10.31734/agroengineering2018.01.047Keywords:
theoretical dependence, grain mix, dosage, separation, distribution, efficiency, productivity, injury, quality, circular speed, radial speedAbstract
The article presents the theoretical researches on the technological process of pneumoviral separation of grain mixtures, which makes it possible to determine the design-kinematic and technological parameters of the grain-cleaning centrifugal separator with a productivity of 25…50 tons per hour on the initial purification of wheat grain with the provision of quality indicators in accordance with DSTU 3768: 2010 and seed yields, respectively, RN-1-3 DSTU 2240-93 with a productivity of 10…20 tons per hour. Pneumatic seeding method and design of the device for separation of grain mixtures provide the necessary controlled loading (productivity) of the module and the uniform distribution of the grain mixture in the pneumatic air flow due to the new design of the rotary spreader and dosing device. An analytical expression is obtained for determining the radial velocity of the particle motion in the pneumoviral flow, as well as the differential equation of motion of the pneumoviral flow with the grain mixture. The solution of this differential equation, obtained in the form of graphical dependence of the velocity of the particle motion in the pneumoviral flow from time to time by simulation. The solution of the differential equation made it possible to determine the hydrodynamic conditions of the stable operation of the vortex aspiration chamber when a constant countercurrent motion of the vortex flow of particles of grain material and vortex air flow was made. The conducted studies confirm the possibility of intensifying the grain mix separation process in a vortex aspiration chamber, and theoretical studies and mechano-technological substantiation of operations make it possible to determine the technological and structural elements of such devices. It was established that the application of the process of pneumoviral separation of grain mixtures when used in structures of vibrocentric separators makes it possible to increase its productivity by 1,5…2 times in comparison with the productivity of known industrial separators and on its basis create new universal centrifugal centrifugal separators with productivity of 50…200 tons per hour.
References
Adamchuk V. V., Prylutskyi A. N., Zaryshniak A. S., Stepanenko S. P. Kontseptsiia perspektyvy kompleksnoho vyrishennia problemy pisliazbyralnoi obrobky i zberihannia zerna v silskohospodarskykh pidpryiemstvakh Ukrainy. Mekhanizatsiia ta elektryfikatsiia silskoho hospodarstva: mizhvidom. temat. nauk. zb. Hlevakha, 2014. Vyp. 99, t. 1. S. 40–56.
Barskiy M. D. Fraktsionirovanie poroshkov. Moskva: Nedra, 1980. 327 s.
Vasylkovskyi M. I., Honcharova S. Ya., Leshchenko S. M. Obgruntuvannia parametriv separatsii zerna v pokhylomu povitrianomu pototsi. Konstruiuvannia, vyrobnytstvo ta ekspluatatsiia silskohospodarskykh mashyn: zahalnoderzh. mizhvidom. nauk.-tekhn. zb. Kirovohrad: KNTU, 2007. Vyp. 37. S. 132–137.
Gortinskiy V. V., Demskiy A. B., Boriskin M. A. Protsessyi separirovaniya na zernopererabatyivayuschih predpriyatiyah. Moskva: Kolos, 1980. 304 s.
Drincha V. M. Issledovanie separatsii semyan i razrabotka mashinnyih tehnologiy ih podgotovki. Voronezh: Izd-vo NPO «MODEK», 2006. 384 s.
Ermak V. P. Kontseptsiia aerodynamichnoi separatsii nasinnia silskohospodarskykh kultur ta zasoby yii realizatsii: avtoref. dys. … d-ra tekhn. nauk: 05.05.11. Ternopil, 2009. 39 s.
Zlochevskiy V. L., Terehova O. N. Povyishenie tehnologicheskoy effektivnosti pnevmofraktsionirovaniya zernovyih mass. Hranenie i pererabotka zerna. 2004. № 5 (59). S. 38–40.
Kolodii O. S. Obgruntuvannia konstruktyvno-tekhnolohichnykh parametriv pnevmo-hravitatsiinoho separatora nasinnia soniashnyka: avtoref. dys. … kand. tekhn. nauk: 05.05.11. Melitopol, 2015. 23 s.
Kotov B. I., Kalinichenko R. A., Stepanenko S. P. ta in. Modeliuvannia tekhnolohichnykh protsesiv v typovykh obiektakh pisliazbyralnoi obrobky i zberihannia zerna (separatsiia, sushinnia, aktyvne ventyliuvannia, okholodzhennia): monohrafiia. Nizhyn: PP Lysenko M. M., 2017. 552 s.
Koshulko V. S. Tendentsii razvitiya tehnologicheskih i tehnicheskih sredstv dlya separatsii zernovyih materialov. Hranenie i pererabotka zerna. 2014. № 2 (179). S. 22–24.
Kucherenko S. I., Olshanskyi V. P., Olshanskyi S. V., Tishchenko L. M. Balistyka krapel, yaki vyparovuiutsia pry poloti. Kharkiv: KhNTUSH, 2007. 203 s.
Nesterenko O. V. Obgruntuvannia parametriv pnevmoseparuiuchoho kanalu z bahatorivnevym vvedenniam zernovoho materialu: avtoref. dys. … kand. tekhn. nauk: 05.05.11. Kropyvnytskyi, 2017. 21 s.
Separator zerna: pat. №60985 Ukraina: MPK V07V1/00/. № U 2010 04775; zaiavl. 21.04.2010; opubl. 11.07.2011, Biul. № 13. 3 s.
Separator zerna pnevmovidtsentrovyi: Pat. № 119186 Ukraina: MPK (2006.01) V07V 1/28. № u 2017 041129; zaiavl. 25.04.2017; opubl. 11.09.2017, Biul. № 17. 3 s.
Slipchenko M. V. Obgruntuvannia parametriv protsesu i rozrobka pnevmoseparuiuchoho prystroiu vibrovidtsentrovykh zernovykh separatoriv: avtoref. dys. … kand. tekhn. nauk: 05.05.11. Kharkiv, 2013. 20 s.
Stepanenko S. P. Doslidzhennia protsesu pnevmatychnoi separatsii nasinnia v kiltsevomu zyhzahopodibnomu separatori. Visnyk Kharkivskoho natsionalnoho tekhnichnoho universytetu imeni Petra Vasylenka. Vyp. 75, t. 1: Mekhanizatsiia silskohospodarskoho vyrobnytstva. Kharkiv: KhNTUSH, 2008. S. 59–65.
Stepanenko S. P., Kotov B. I. Doslidzhennia zakonomirnostei rukhu komponentiv zernovoho materialu pid chas pnevmohravitatsiinoho fraktsionuvannia u vertykalnomu kanali. Mekhanizatsiia ta elektryfikatsiia silskoho hospodarstva: zahalnoderzh. zb. Hlevakha: NNTs «IMESH». 2018. Vyp. 7 (106). S. 82–89.
Stepanenko S. P., Kotov B. I., Spirin A. V. Do pytannia matematychnoho opysu rukhu vymolochenoho nasinnia v kiltsevomu kanali zminnoho pererizu. Visnyk Kharkivskoho natsionalnoho tekhnichnoho universytetu imeni Petra Vasylenka. Vyp. 180: Mekhanizatsiia silskohospodarskoho vyrobnytstva. Kharkiv: KhNTUSH, 2017. S. 330–339.
Stepanenko S. P., Kotov B. I., Shvydia V. O., Koval Yu. H. Do teorii rozdilennia zerna v povitrianomu pototsi. Konstruiuvannia, vyrobnytstvo ta ekspluatatsiia silskohospodarskykh mashyn: zahalnoderzhav. mizhvidom. nauk.-tekhn. zb. Kirovohrad: KNTU, 2009. Vyp. 39. S. 54–62.
Stepanenko S. P., Prylutskyi A. N., Koval Yu. H. Do obgruntuvannia shliakhiv pidvyshchennia intensyfikatsii protsesu i konstruktsiinoi skhemy pnevmoseparuiuchoi chastyny vibrovidtsentrovoho separatora zerna. Mekhanizatsiia ta elektryfikatsiia silskoho hospodarstva: mizhvidom. temat. nauk. zb. Hlevakha, 2010. Vyp. 94. S. 216–219.
Stepanenko S. P., Shvydia V. O., Popadiuk I. S. Analiz rozvytku konstruktsii pnevmoseparuiuchykh system separatoriv. Mekhanizatsiia ta elektryfikatsiia silskoho hospodarstva: zahalnoderzh. zb. Hlevakha: NNTs «IMESH», 2017. Vyp. № 5 (104). S. 132–142.
Ushakov S. G. Zverev N. I. Inertsionnaya separatsiya pyili. Moskva: Energiya, 1974. 168 s.
Shvydia V. O. Pidvyshchennia efektyvnosti pnevmovidtsentrovoho separatora ta obgruntuvannia parametriv robochykh orhaniv: avtoref. dys. … kand. tekhn. nauk: 05.05.11. Hlevakha, 2012. 18 s.
Shilin V. V. Povyishenie effektivnosti ochistki zerna vibrotsentrobezhnyim separatorom putem razrabotki pnevmosistemyi s vertikalnyim koltsevyim aspiratsionnyim kanalom: avtoref. diss. … kand. tehn. nauk: 05.20.01. Kirov, 2004. 20 s.
