DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS
ABSTRACT To improve the working performance of hammer mill, cutting-edge hammer and oblique hammer were designed in this study. The advantages of new hammers were theoretically analyzed. The grinding process of corn grain with different hammers was studied by discrete element method (DEM) and experi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Engenharia Agrícola
2021-12-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000500559&tlng=en |
| _version_ | 1818975024766255104 |
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| author | Di Wang Haiqing Tian Tao Zhang Changbin He Fei Liu |
| author_facet | Di Wang Haiqing Tian Tao Zhang Changbin He Fei Liu |
| author_sort | Di Wang |
| collection | DOAJ |
| description | ABSTRACT To improve the working performance of hammer mill, cutting-edge hammer and oblique hammer were designed in this study. The advantages of new hammers were theoretically analyzed. The grinding process of corn grain with different hammers was studied by discrete element method (DEM) and experiments. Discrete element simulation results showed that under same rotor speed conditions, the cutting-edge hammer had highest bond-breaking efficiency in corn grain model. The oblique hammer could reduce the incident angle of corn grain and improve sieving efficiency. The motion trajectory of corn grain in grinding chamber was relatively dispersed and similar when using common hammer and cutting-edge hammer, and the motion trajectory was more concentrated when oblique hammer was used. The experimental results showed that both cutting-edge hammer and oblique hammer could improve the working performance of hammer mill. The productivity of hammer mill could be improved by using cutting-edge hammer, electricity consumption per ton and temperature rise of feed could be reduced by using oblique hammer, and the experimental results were consistent with simulation results and theoretical analysis results. The research results can provide references for the design of new hammer and the grinding process simulation of other agricultural materials. |
| first_indexed | 2024-12-20T15:49:23Z |
| format | Article |
| id | doaj.art-39082f1f272e4319a20854f68988c805 |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-12-20T15:49:23Z |
| publishDate | 2021-12-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-39082f1f272e4319a20854f68988c8052022-12-21T19:34:45ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162021-12-0141555956610.1590/1809-4430-eng.agric.v41n5p559-566/2021DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESSDi WangHaiqing Tianhttps://orcid.org/0000-0001-5438-5629Tao ZhangChangbin HeFei LiuABSTRACT To improve the working performance of hammer mill, cutting-edge hammer and oblique hammer were designed in this study. The advantages of new hammers were theoretically analyzed. The grinding process of corn grain with different hammers was studied by discrete element method (DEM) and experiments. Discrete element simulation results showed that under same rotor speed conditions, the cutting-edge hammer had highest bond-breaking efficiency in corn grain model. The oblique hammer could reduce the incident angle of corn grain and improve sieving efficiency. The motion trajectory of corn grain in grinding chamber was relatively dispersed and similar when using common hammer and cutting-edge hammer, and the motion trajectory was more concentrated when oblique hammer was used. The experimental results showed that both cutting-edge hammer and oblique hammer could improve the working performance of hammer mill. The productivity of hammer mill could be improved by using cutting-edge hammer, electricity consumption per ton and temperature rise of feed could be reduced by using oblique hammer, and the experimental results were consistent with simulation results and theoretical analysis results. The research results can provide references for the design of new hammer and the grinding process simulation of other agricultural materials.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000500559&tlng=enhammer millfeedhammer structurecirculation layer |
| spellingShingle | Di Wang Haiqing Tian Tao Zhang Changbin He Fei Liu DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS Engenharia Agrícola hammer mill feed hammer structure circulation layer |
| title | DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS |
| title_full | DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS |
| title_fullStr | DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS |
| title_full_unstemmed | DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS |
| title_short | DEM SIMULATION AND EXPERIMENT OF CORN GRAIN GRINDING PROCESS |
| title_sort | dem simulation and experiment of corn grain grinding process |
| topic | hammer mill feed hammer structure circulation layer |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000500559&tlng=en |
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