{"created":"2023-07-25T09:05:35.843702+00:00","id":3672,"links":{},"metadata":{"_buckets":{"deposit":"9b3bcfa0-630f-4265-884b-cc0bf5753243"},"_deposit":{"created_by":3,"id":"3672","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3672"},"status":"published"},"_oai":{"id":"oai:toyama.repo.nii.ac.jp:00003672","sets":["496:556:559:560:569"]},"author_link":["54258","54259"],"item_3_alternative_title_19":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Research on Frictional Electrification Phenomena of Calcium-Silicide Powder"}]},"item_3_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1958-03-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1/2","bibliographicPageEnd":"33","bibliographicPageStart":"27","bibliographicVolumeNumber":"9","bibliographic_titles":[{"bibliographic_title":"富山大学工学部紀要"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"An arrangement shop which was pulverizing calcium-silicide and collecting the powder was exploded by the fire powder at Fusiki Factory of Azuma Kako Co. Ltd. on 19th May, 1957. It is uncertain how the explosion took place, but it may be possible that the ignition was caused by the spark discharge of the static charge given in the course of collecting the powder by the friction, as the calcium-silicide powder as the wheat powder. Static charge given to the powder in the mixer was experimentally studied, and leaf-electrometer connected to the mixer showed that the maximum voltage was over 3000V. The r.p.m. of the blade in the mixer was changed and powders of calcium-silicide, wheat, carbon, alminium, magnesium and polyvinyl-chloride were used. The calcium-silicide powder was in the range from 100 mesh up to 300 mesh down.","subitem_description_type":"Abstract"},{"subitem_description":"近米粉体を製造する工業の種類の増加とその量産化に伴い，その工程中摩擦による静電気を発生する機会が多く，従って静竜気を点火源とする爆発火災の事故が起り易く，被害も遂次増加の傾向がある。\n昭和29年1月22日日清製粉株式会社鶴見工場の小麦粉製品貯蔵タンクの爆発火災事故が発生したので，通産省電気試験所が中心となり，該原因の綜合的調査研究が実施せられたのが，わが国の粉末帯電現象の実用的研究の最初であろう。\nその基礎的実験研究では小麦粉に帯電する原因は大部分タンクの壁又は底との摩擦であるとされ，その実験の範囲内で次の最大諸量が測定された。\n小麦粉の摩擦帯電量16.2μC/kg 空間電荷密度0.153μC/㎥ \n空間電位3,900V 粉麗密度11.8g/㎥ \n小麦粉の電位8,200V \n筆者も本県において最近この種製造工業が増加の傾向にあり，その調査研究を痛感していた際，たまたま去る5月19日東化工株式会社伏木工場のカルシウム・シリサイド粉砕工程に於ける収塵装置の爆発による災害事故が発生したので，偶々筆者に該粉末の帯電現象の有無について研究調査を依頼された。\n該爆発事故発生による被害個所はインペラブレーカーで粗粒に粉砕する主工程ではなく，粉砕によって生じた微粉を回収するため，サイクロン収塵装置に微粉を風送する吸引送風機の吐出側矩形型パイプが最も被害が顕著であった。\n斯様な被害状況に鑑み，若しこの災害事故の原因が摩擦による帯電現象によるならば，該送風機で粉体を風送する際粉体とファンとの接触摩擦による静電気であるとの推定で実験を進行した。\n尚粉体の爆発現象は起爆条件及び伝播条件の二条件が同時に満足した時に起り，その起爆原因が静電気にあるとすれば，その粉体の帯電エネルギーが最少点火エネルギー以上であるとき爆発の可能性が考慮される。\nカルシウム・シリサイド粉（以下Ca-Si粉）の最少点火エネルギーは明らかにされていないが，その粉末の点火温度が600℃～700℃であること並びにその反応の類似性よりみて，既報の文献に示されている本稿中の第一表のマグネシウム又はアルミニウム粉と同程度の20～30mjouleと見るのが妥当であろう。\n従って本研究においてはCa-Si粉の帯電性について，そのエネルギーが20～30mjoule程度に達する可能性の有無について特に重点をおき，問題となる粒度の影響について比較的詳細に検討すると共に小麦粉その他二，三の粉体とも比較検討を行った。","subitem_description_type":"Abstract"}]},"item_3_description_40":{"attribute_name":"資源タイプ(DSpace)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_3_description_6":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"富山大学工学部紀要，9(1/2), Page 27-33","subitem_description_type":"Other"}]},"item_3_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"54259","nameIdentifierScheme":"WEKO"}],"names":[{"name":"TOTTORI, Kotaro"}]}]},"item_3_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15099/00003666","subitem_identifier_reg_type":"JaLC"}]},"item_3_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"富山大学工学部"}]},"item_3_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00175872","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03871339","subitem_source_identifier_type":"ISSN"}]},"item_3_subject_22":{"attribute_name":"国立国会図書館分類","attribute_value_mlt":[{"subitem_subject":"ZM2","subitem_subject_scheme":"NDLC"}]},"item_3_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鳥取, 孝太郎"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-02-16"}],"displaytype":"detail","filename":"Kokiyo_9_001_Page027to033.pdf","filesize":[{"value":"11.7 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Kokiyo_9_001_Page027to033.pdf","url":"https://toyama.repo.nii.ac.jp/record/3672/files/Kokiyo_9_001_Page027to033.pdf"},"version_id":"44ebcaf7-62dd-42d9-9f24-35f09d49a71a"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"カルシウム・シリサイド粉","subitem_subject_scheme":"Other"},{"subitem_subject":"カルシウム","subitem_subject_scheme":"Other"},{"subitem_subject":"シリサイド粉","subitem_subject_scheme":"Other"},{"subitem_subject":"摩擦帯電現象","subitem_subject_scheme":"Other"},{"subitem_subject":"粉体","subitem_subject_scheme":"Other"},{"subitem_subject":"爆発火災事故","subitem_subject_scheme":"Other"},{"subitem_subject":"サイクロン収塵装置","subitem_subject_scheme":"Other"},{"subitem_subject":"インペラブレーカー","subitem_subject_scheme":"Other"},{"subitem_subject":"マグネシウム","subitem_subject_scheme":"Other"},{"subitem_subject":"爆発火災","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"カルシウム・シリサイド粉の摩擦帯電現象に関する研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"カルシウム・シリサイド粉の摩擦帯電現象に関する研究"}]},"item_type_id":"3","owner":"3","path":["569"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-09-11"},"publish_date":"2012-09-11","publish_status":"0","recid":"3672","relation_version_is_last":true,"title":["カルシウム・シリサイド粉の摩擦帯電現象に関する研究"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-07-25T15:17:35.070624+00:00"}