Ndondomeko ya multihead weigher, chiwembu chogwiritsa ntchito magawo oyambira, kuwerengera ndi chitsanzo chakugwiritsa ntchito

Wolemba: Smartweigh-Multihead Weighter

Multihead weigher (Loss-in-weightfeeder) ndi mtundu wa kusanthula kachulukidwe kolemera kwa zida zodyetsera. Kuchokera pa cholinga chachikulu, choyezera cha multihead chimagwiritsidwa ntchito panjira yonse yoyezera mosalekeza, yomwe imatha kunyamula zida zomwe ziyenera kudyetsedwa mosalekeza. Kuyeza ndi kusanthula kachulukidwe ntchito, ndipo pali pompopompo kutulutsa kwathunthu kwa zopangira ndi chidziwitso chonse chowonetsera. Kunena zoona, ndi njira yoyezera ma data yokhazikika, yomwe imatenga ukadaulo woyezera wa sikelo ya static data hopper, ndipo imagwiritsa ntchito sensa yoyezera kulemera kwake. Komabe, mu gulu lowongolera la multihead weigher, ndikofunikira kuwerengera kulemera kwa ukonde komwe kunatayika pa nthawi ya unit ya sikelo ya hopper kuti mupeze kuchuluka kwazinthu zonse nthawi yomweyo.

Chithunzi 1 ndikuwona ndondomeko ya mfundo ya multihead weigher. Kufotokozera mwachidule kwa multihead weigher, dongosolo la mapangidwe, kuyeza ndi kugwiritsa ntchito magawo akuluakulu a ntchitoyo ndi momwe amagwiritsira ntchito. Chithunzi 1. Ndondomeko ya ndondomeko ya multihead weigher. Chithunzi 1 ndi chithunzi chojambula cha kapangidwe ka multihead weigher. Kutulutsa, pamene mulingo wapamwamba wazinthu wafika, valavu yotulutsa imatsekedwa, ndipo hopper yoyezera imathandizidwa ndi woyezera ma multihead. Kuti muyeso ukhale wolondola, mbali zam'mwamba ndi zapansi za hopper yoyezera zonse zimalumikizidwa molingana ndi njira yofewa kapena polowera ndikutuluka, kotero kuti kulemera kwa ukonde kutsogolo ndi kumbuyo, kumanzere ndi kumanja makina ndi zida ndi Zopangira sizimagwiritsidwa ntchito poyezera zitsulo.

Mbali yakumanja ya Chithunzi 1 ndikuwona ndondomeko ya ndondomeko yonse ya wodyetsa mosalekeza. Njira yonse ya wodyetsa mosalekeza imakhala ndi dongosolo lozungulira (zozungulira zitatu zikuwonetsedwa pachithunzi). Dongosolo lililonse lozungulira limakhala ndi nthawi ziwiri zozungulira: pomwe choyezera choyezera chilibe kanthu, valavu yotulutsa imatsegulidwa kuti itulutse zinthuzo, ndipo kulemera kwa ukonde wazinthu zopangira zoyezera kumapitilira kukula. Pamene mulingo wapamwamba wazinthu ufikira pa t1, valavu yotulutsa imatsekedwa. Chowozera wonongacho chinangoyamba kutsanulira zakuthupi, ndiyeno choyezera chamitundu yambiri chinayamba kugwira ntchito; Patapita nthawi, pamene kulemera kwa ukonde wa zopangira muzitsulo zoyezera kunapitirira kuchepa ndikufika pa mlingo wocheperako pa t2, valavu yotulutsa inatsegulidwanso, ndipo nthawi yochokera ku t1 mpaka t2 inali ntchito ya Force feeder cycle. nthawi; pakapita nthawi, pamene kulemera kwa ukonde wa zopangira muzitsulo zoyezera kumapitirira kuwonjezeka ndikufika pamlingo wazinthu zowonjezera panthawi ya T3, valve yotulutsa imatsekedwa, ndipo nthawi yochokera ku t2 mpaka t3 ndi nthawi yozungulira. kubwezeretsanso, ndi zina zotero. Pa nthawi yozungulira ya mphamvu yowonjezera mphamvu, chiŵerengero cha liwiro la conveyor wononga chimayang'aniridwa molingana ndi kuthamanga kwa nthawi yomweyo kuti mukwaniritse chakudya chokhazikika; pa kukonzanso kutsitsa mkombero nthawi, liwiro chiŵerengero cha conveyor wononga adzasunga liwiro chiŵerengero basi isanayambe nthawi mkombero. Sinthani chodyetsa kukhala njira yowunikira kuchuluka kwa voliyumu.

Chifukwa choyezera chamitundu yambiri chimaphatikiza kuyeza kwamphamvu komanso kusinthasintha kwa data, ndikuphatikiza chodyetsa chosokonekera komanso kudyetsa mosalekeza, kapangidwe kake ndi kosavuta kusindikiza, ndipo ndi koyenera kuyeza zopangira zabwino kwambiri monga konkire, ufa wa quicklime, malasha opukutidwa, chakudya. , mankhwala, etc. Kulemera ndi kulamulira zokometsera, akhoza kukwaniritsa mkulu masekeli mwatsatanetsatane ndi linearity. 2. Kufunika kwa dongosolo la mapangidwe a magawo akuluakulu a ntchito ya multihead weigher Popanga chiwembu cha multihead weigher, magawo akuluakulu a ntchitoyo monga kuchuluka kwa kutulutsa, kuchuluka kwa kutulutsanso, mphamvu ya chopimira choyezera, ndi kuchuluka kwa kutulutsanso kuyenera kuganiziridwa, apo ayi choyezera chamitundu yambiri sichingagwire ntchito moyenera. Makasitomala adagula choyezera mitu yambiri kuchokera kwa wopanga kuti azikonza zida zapamalo kuti ziwunikidwe. Masensa a 3 100kg okha ndi omwe adagulidwa. Pambuyo pogwiritsidwa ntchito, zidapezeka kuti zero point inali yosakhazikika, ndipo kutuluka kwathunthu nthawi zina sikunawonetse zidziwitso ndi zolakwika zina wamba.

Wopangayo atatumiza munthu pamalopo, adazindikira kuti zopangira za kasitomala ndi boric acid, kachulukidwe wachibale ndi 1510kg/m3, otaya pazipita okwana 36kg/h, ndipo wamba otaya okwana ndi 21 ~ 24kg/ h. Kuthamanga konseko ndikochepa kwambiri, hopper imatenga magawo atatu othandizira ma sensor 100kg, ndipo mphamvu ya hopper yowunikira ndi yayikulu kwambiri. Munthu akhoza kutsatira kwambiri analimbikitsa ntchito zinachitikira malamulo pansipa“Kuchuluka kwa phulusa kuli kwakukulu, kutulutsanso pafupipafupi kumasankhidwa ngati 15 mpaka 20 nthawi / h.”Kuti mupitilize, kulemera konse kwa kutulutsanso kulikonse ndi 36/15 ~ 36/20, ndiko kuti, 1.9kg ~ 2.4kg. Kulemera konse kwazinthu zopangira zonyamula ndi sensa iliyonse yolemetsa ndi yochepera 1 kg, ndipo muyeso woyenera ndi pafupifupi 0.5 ~ 1%.

Nthawi zambiri, muyeso woyenera wa sensa yoyezera uyenera kukhala osachepera 10-30% kapena kupitilira apo, kuti mutsimikizire kulemera kolondola. Malinga ndi kulemera kwa zinthu zopangira 2.4kg kuphatikiza kulemera kwa ukonde wa hopper ndi zida zodyetsera (monga screw conveyor), kulemera kwake ndi pafupifupi 10kg. Ngati ma cell atatu olemetsa agwiritsidwa ntchito, muyeso wamtundu uliwonse wonyamula ukhoza kusankhidwa kuchokera ku 5kg ~ 10kg. Ndiye kuti, kuyeza kwa sensa yomwe idalamulidwa koyambirira ya 100kg imakhala yokulirapo nthawi 10-20, zomwe zimapangitsa kudalirika kocheperako kwa choyezera chamitundu yambiri komanso kutsika kocheperako.

Mlanduwu ukuwonetsa kuti kapangidwe kake ka multihead weigher kuyeneranso kutsatizana ndi dongosolo la kapangidwe kake, ndipo magawo akulu a zida zamakina ndikugwiritsa ntchito choyezera chamagulu ambiri ayenera kutsimikiziridwa pambuyo powerengera. 3. Kuwerengera kwa dongosolo la mapangidwe a magawo akuluakulu a ntchito ya multihead weigher 3.1 Kuwerengera kwafupipafupi kutulutsa Chithunzi 1 tsatanetsatane wa ntchito ya multihead weigher. Dongosolo lililonse lozungulira limaphatikizapo njira yonse yotulutsira, ndiye kuchuluka koyenera kotulutsa ndi kotani? Kwa choyezera mutu wambiri, kukulira kwa kuchuluka kwa kuchuluka kwa ophatikizira mphamvu panjira iliyonse yozungulira (kukhalapo kwa nthawi = kuzungulira kwa chakudya champhamvu / kutulutsanso mphamvu), ndibwino, nthawi zambiri kuyenera kupitilira 10: 1. Izi ndichifukwa choti kulondola kwanthawi yozungulira kwa chopha mphamvu kumapitilira nthawi yotsitsanso. Kuchulukira kwa kuchuluka kwa kuzungulira kwa cholumikizira mphamvu, m'pamenenso choyezera mitu yambiri chimakwera kwambiri.

Kuchuluka kwa kayendedwe ka kayendedwe ka kayendedwe ka nthawi ya unit ya multihead weigher nthawi zambiri kumawonetsedwa ngati mafupipafupi a kayendedwe ka magazi pa ola pamene kuchuluka kwa phulusa kuli kwakukulu, ndiko kuti, nthawi / h. Chifukwa chikhalidwecho chimachokera ku kuchuluka kwa phulusa pa ola limodzi, kudyetsa phulusa pa nthawi ya unit (mwachitsanzo, pamphindikati) ndi nthawi yokhazikika. Kuchepa kwapang'onopang'ono kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake kuchulukirachulukira kwa kayendedwe ka kayendedwe ka kayendedwe ka kayendedwe ka kayendedwe ka kayendedwe ka kayendedwe ka kayendedwe ka kayendedwe kake, kuchepetsa kuchuluka kwa kutulutsa kulikonse, kuchepa kwa mphamvu ndi kulemera kwa ukonde wa hopper yolemera, komanso kukwezera kulondola kwa kuwonda ndi kuwerengera pogwiritsa ntchito kachipangizo koyezera ndi kagawo kakang'ono koyezera.

Komabe, mafupipafupi a kayendedwe ka kayendedwe kake ndi kwakukulu kwambiri, makina odyetserako zakudya amayamba ndikuyima pafupipafupi, ndipo gulu lolamulira la multihead weigher nthawi zambiri limasintha pakati pa nthawi yozungulira ya mphamvu yowonjezera mphamvu ndi nthawi yozungulira ya kudyetsanso, zomwe. si zabwino kwambiri. Maulendo omwe akulimbikitsidwa kuti azitulutsanso akuwonetsedwa mu Gulu 1, koma chofunikira kwambiri komanso cholimbikitsidwa kwambiri ndi ma frequency atatu otulutsa pakati. Monga lamulo lachidziwitso cha ntchito, mapulogalamu ambiri otaya-mu-weight feeder system ndi abwino kwambiri kwa zipangizo za powdery ndi zipangizo za granular zokhala ndi madzi ochepa. nthawi/ola.

Pamene phulusa kudyetsa kuchuluka ndi m'munsi kuposa lalikulu phulusa kudyetsa kuchuluka, pafupipafupi kudyetsanso yafupika, kuti mkombero occupancy mlingo wa mphamvu wodyetsa ndi lalikulu, amene ali opindulitsa kwambiri kusintha mwatsatanetsatane. Monga lamulo lachidziwitso cha ntchito, ntchito zina zokhala ndi otsika kwambiri otaya okwana mlingo wa wodyetsa, ngakhale kuti hopper mphamvu ndi yaing'ono kwambiri, akhoza kusunga zopangira kwa ola limodzi kapena yaitali kudyetsa, ndi nthawi kudyetsa kachiwiri kuposa 1 ora. . Chitsanzo chotsatirachi: Kutulutsa kwathunthu kwa chodyetsa chachikulu ndi 2kg/h. Chiŵerengero cha mulu wa zopangira ndi 803kg/m3. Kuthamanga konse kwa chodyetsa voliyumu yayikulu ndi 2/803=0.0025m3/h. Ngati mphamvu ya hopper ndi 0.01m3 (pafupifupi yofanana ndi 25b250m×25b250m×Kukula kwa kyube hopper ngati 25b250m), zokwanira zopangira ntchito 2h ~ 3h, ndipo aliyense kudyetsa kuchuluka m'munsimu 10kg, kotero palibe chifukwa chodyera basi, kudyetsa pamanja utumiki akhoza kuonedwa kupanga ndi kupanga malamulo, koma okwana kuyenda ndi mzere kutsika pang'ono.

3.2 Njira yowerengera kuchuluka kwa kutulutsanso kwasankha mafupipafupi otulutsanso, ndiyeno kuchuluka kwa kutulutsanso komanso kuchuluka kwa odyetsa kutha kuwerengedwa. Malinga ndi kusanthula kwa ma weigher a multihead weigher: kuchuluka konse kwa chowonjezera chokulirapo ndi 275kg / h, kuchuluka kwazinthu zopangira ndi 485kg/m3, ndipo kuchuluka konse kwa chowonjezera chokulirapo ndi 270/480= 0.561m3/h. Kuchuluka kwa zinthuzo kumasankhidwa ngati 15 nthawi / h. Njira yowerengera kuchuluka kwa kutulutsanso ndi: kuchuluka kwa kutulutsanso = kuchuluka kwa phulusa (kg / h)÷Kachulukidwe (kg/m3)÷Kutulutsanso pafupipafupi (kutulutsanso pafupipafupi / h) Muchitsanzo ichi, kutulutsanso voliyumu = 270÷480÷15=0.0375m33.3 Kuwerengetsera kulemera kwa hopper Kukhoza kwa choyezera choyezera mu dongosolo la kamangidwe mosakayika kudzaposa voliyumu yowerengeranso yotulutsanso. Izi ndichifukwa choti ndikofunikira kulingalira kuti choyezera choyezera sichingalephereke pamene kutulutsanso kumayambika. Palinso ena“Zotsalira zopangira”ndipo pamwamba pa hopper ili ndi zosungirako zomwe sizingatheke kudzaza“malo aulere”, ngati aliyense amawerengera 20%, ndiye kuti voliyumu yotulutsanso imagawidwa ndi 0,6, ndipo mphamvu ya hopper yofunikira ingapezeke, ndipo mphamvu yomaliza yoyezera silo iyenera kukhala yonyezimira molingana ndi mphamvu yomaliza ya silo. Njira yowerengera yotulutsanso voliyumu: kuyeza mphamvu ya hopper = kutulutsanso voliyumu÷Kumene k: k ndi chiwerengero chowerengera cha mphamvu ya hopper, yomwe ingakhale 0.4 ~ 0.7, ndipo 0.6 ikulimbikitsidwa kwambiri.

Mu chitsanzo ichi, Weigh Hopper Capacity = 0.0375÷0.6 = 0.0625m3 Ngati mphamvu ya silo yojambula ili ndi zofunikira monga 0.6m3, 0.2m3, 1.b2503, etc., iyenera kukhala yonyezimira mpaka 0.08m3, ndipo mphamvu ya hopper yolemera iyenera kukhala 0.08m3. 3.4 Mlingo wa kutulutsa ukuwerengedwanso chifukwa cha choyezera chamitundu yambiri Munthawi yobwezeretsanso, njira yochepetsera yokhazikika-yokhazikika imasankhidwa, kotero kuti kuthamanga kwapang'onopang'ono kwa wodyetsa wonjenjemera kumanenedwa kukhala mwachangu (nthawi zambiri, iyenera kugwiritsidwa ntchito mkati mwa 5s ~ 20s). Njira yowerengera yotulutsanso: mlingo wotulutsanso = [re-discharge volume (m3)÷Kubwereranso nthawi (s)×60(s/min)]+[Kutulutsa konse kwa chowonjezera chokulirapo (m3/h)÷60 (min/h)] Mu chilinganizo 2, kuchuluka kwa kutulutsa kumakhalanso ndi zinthu ziwiri.

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