Entrapment ya poubelle ya mbuma mpe ba accidents ya ba machines PTO ya ferme¶
Mituya ya mbalakaka ekeseni na mikili. Lokasa oyo esaleli 911, nimero ya États-Unis mpe Canada. Bikólo mosusu mingi esalelaka 112, 999, to motángo mosusu. Luka nimero ya mboka na yo.
Bisika ya kobomba mbuma ya bilanga, ba silos ya bilei ya banyama, mpe banzela ya bozui nguya ya tracteur (PTO) ezali kati na bisika ya mosala oyo ebomaka mingi na mokili mobimba. Lokola masangu, blé, soya mpe sorgho oyo ezali kosopana esalaka lokola mai oyo ezali na densité makasi ntango ba augers oyo ezali kokita ezali kopota mbangu, mokóló oyo azali konyata mbuma oyo ezali kotambola babendamaka tii na loketo na boumeli ya segɔnde 5 te mpe bazindisaka yango mobimba na boumeli ya segɔnde 20 te. Soki mbuma ekómi na bolai ya ntolo, friction latérale mpe verticale ya noix esalaka résistance ya extraction oyo eleki 400 à 700 kilos (900 à 1.500 livres) ya force, kosala que physiquement ezala impossible ya kobenda victime libanda na nsinga tango azali ko crusher ribcage na bango makasi na chaque exhalation.
Ezali mpe kolimbisa te ezali ba arbres ya stub ya décollage ya puissance ya tracteur (PTO) oyo ebatelami na 540 to 1.000 revolutions par minute (RPM) mpe ba silos ya forage ya espace confiné oyo etondi na gaz toxique ya gaz d’azote (\(NO_2\)) to gaz carbonique oyo e déplacer oxygène (\(CO_2\)). Na 540 RPM, arbre PTO oyo ezali kobalusama ezingaka 2,1 mètres (7 feet) ya veste to nsinga ya botte ya mosali zingazinga ya nsinga ya motuka ya bibende na segɔnde moko, mpe esalaka ete kokatakata nzoto na mbala moko, kokata motó, to kobukana ya mokuwa ya mokɔngɔ. Koyeba ndenge ya kokanga ba augers ya déchargement mpe kofungola mbala moko ba ventilateurs d’aération, mpo na nini babikisi basengeli soko moke te kopumbwa na kati ya poubelle ya mbuma oyo ezangi nsinga ya bomoi to kobenda victime oyo akundami na maboko, lolenge nini ko désactiver moteur ya tracteur diesel na tango ya entanglement ya PTO, mpe ndenge nini ko éviter ba réactions ya chaîne ya gaz silo oyo ekoki koboma bato ebele ebikisaka bomoi na ferme.
Sala boye sikoyo¶
- Kanga mbala moko auger ya déchargement ya mbuma mpe ON ventilateur ya aération ya poubelle soki mutu akangami na mbuma. Komeka ata moke te kobimisa moto oyo akundami na nsinga; kokata nguya na auger ya nse etelemisaka kobenda na nse mbala moko, nzokande kofungola ventilateur ya aération (na chauffe-eau ekangami) ezali kopumbwa mopepe ya sika likolo na nzela ya ba noix mpo ete moto oyo azindi na mai akoki kopema.
- Kopumbwa ata moke te na kati ya sanduku ya mbuma to kokota na silo ya komela likaya/gaz kozanga nsinga oyo ekangami mpe aparɛyi ya kopema. Koleka katikati ya bato nyonso oyo bakufaka na sanduku ya mbuma mpe na silo ezali bato oyo balingi kobikisa oyo bakɔtaka mbangumbangu mpo na kobikisa moto ya libota to moninga ya mosala mpe bazindisami mbala moko na bifelo ya mbuma oyo ekweyi to babɛtaka bango kozanga koyeba na mwa basegɔnde na gaze ya silo oyo emonanaka te.
- Boma moteur ya tracteur to longola embrayage ya PTO yambo ya kosimba moto nyonso oyo akangami na ligne d’entraînement. Benda bouton ya bokangami ya carburant ya gazole ya motane, boma clé ya allumage, to botia levier ya engagement ya PTO na neutre, mpe bokanga ba roues ya tracteur; komeka ata moke te kokanga to kobenda moto oyo azwi mpasi ntango arbre ezali naino kobaluka.
- Tika bilamba oyo epasuka, oyo ezingami makasi na arbre ya PTO mpe pakola tourniquet na maboko oyo bakati mbala moko. Kata moto oyo azwi mpasi na elamba oyo ebalusami na nzela ya ba cisailles ya kilo to mbeli ya utilité kozanga kofungola arbre na sima soki kosala bongo ezali kotinda mikuwa oyo ebukani, mpe pakola tourniquet ya mombongo na santimetele 5 kino 7 (2 kino 3 pouces) likolo ya amputation nionso ya traumatique.
- Kobenda victime te na volant ya auger, mutu ya masangu, to ba rouleaux ya baller na kozongisa sima puissance ya machine. Kozongisa sima ba rouleaux to ba augers ya bilanga oyo ezali na puissance esalaka que ba rouleaux secondaires ebebisaka mpe epasola; kangá allumage ya tracteur mpe salelá biloko oyo epalanganisaka mai, ba jacks to ba clés mpo na kokata ndako oyo ezali zingazinga ya enama.
- Benga ba services ya urgence mbala moko mpe yebisa "tube ya rescue ya poubelle ya mbuma" to "extrication ya ba machines lourde" na appel. Ba départements ya pompiers ya ba volontaires ya bamboka esengeli koyebisa liboso mpo na kotinda ba tubes spécialisés ya kobikisa mbuma ya cofferdam, ba camions ya mbuma ya aspirateur, mpe ba ambulances aériennes; benga nimero ya urgence ya esika ofandi (911 na Etats-Unis mpe Canada, 112 na Union européenne mobimba, 999 na Royaume-Uni) to tala banimero ya mbalakaka.
flowchart TD
Start["Sanduku ya mbuma ya bilanga, Silo, to Urgence ya Machines ya PTO"] --> Type{"Lolenge nini ya likambo ya mbalakaka ezali kosalema?"}
Type -->|"Entrapment ya sanduku ya mbuma"| AugerOff["1. Kanga OFF auger ya déchargement mbala moko<br/>2. Bofungola ventilateur d’aération (chauffe-eau OFF)<br/>3. Benga na 911 / 112 / 999 mpo na Tube ya kobikisa mbuma"]
Type -->|"PTO Arbre to Auger Entanglement"| PTOOff["1. Kolongola PTO mpe kokanga moteur ya tracteur<br/>2. Kozongisa ata moke te ba machines oyo esalaka na puissance<br/>3. Pakola tourniquet mpo na kobima makila makasi"]
Type -->|"Moto oyo akwei na Silo to Libulu ya Manure"| GasStop["STOP: Kokota jamais sans paquet d’air ya SCBA<br/>Bofungola souffleur ya silo to ventilateur ya ventilation ya mabulu<br/>Benga 911 / 112 / 999 pona Confined Space Rescue"]
AugerOff --> BuriedLevel{"Motó ya moto oyo azwi mpasi ezali naino likoló ya mbuma?"}
BuriedLevel -->|"Ee: Bozindo ya loketo to ya ntolo"| Cofferdam["Kobenda victime na ba nsinga TE<br/>Kisa ba feuilles ya contreplaqué po atelema<br/>Zela ba pompiers ba kotisa tube ya cofferdam"]
BuriedLevel -->|"Te: Ezindisami mobimba na mai"| CutBin["Kata mabulu ya lisungi oyo ezali na lolenge ya V ndenge moko zingazinga ya moboko ya bifelo ya sanduku ya bibende mpo na kobimisa mbuma ntango ventilateur ezali kopumbwa mopɛpɛ"]
PTOOff --> Amputation{"Ezali kokata enama to chiffre mobimba?"}
Amputation -->|"Ɛɛ"| SavePart["Contrôler hémorragie ya tige na tourniquet, envelopper partie coupée na gaze humide na kati ya sac en plastique na glace"]
Amputation -->|"Te"| Stabilize["Stabiliser métal oyo ekangami to enama oyo enyatami na esika na yango, fungola ba boulons ya ba gardes ya machine to ndako na bokebi"]
Physique ya entrapment ya poubelle ya grain na pourquoi okoki kobenda victime te libanda¶
Mpo na koyeba ntina oyo kokangama ya mbuma ebomaka na boumeli ya mwa basegɔnde, osengeli kososola ndenge oyo mai esalaka mpe friction granulaire ya milona oyo ebombami. Ntango bafungolaki auger ya kokita na nse ya katikati ya sanduku ya mbuma, mbuma ekiti na nse ndenge moko te na nse ya sanduku lokola mai oyo ezali kobima na baignoire. Na esika na yango, mbuma eutaka uta na likolo ya katikati ya likolo semba na nse na nzela ya noyau vertical ya katikati (koleka ya entonnoir) kino na porte ya sump ya nse na mbangu ya 1,5 kino 3 mètres (5 kino 10 pieds) na miniti moko.
| Scénarios ya kokangama na motambo | Mecanisme physique ya nzoto | Tango ya Immobilisation | Force de Extrication oyo esengeli |
|---|---|---|---|
| Entonnoir ya mbuma oyo ezali kosopana (Kokitanya Auger oyo ezali kopota mbangu) | Kolona verticale centrale ya mbuma ekiti semba na nse na kati ya esika ya kobwaka mai na nse, esalaka lokola ceinture convoyeur oyo ezali kokita na mbangu mingi | 3 to 5 secondes na bozindo ya genoux/taille (point ya kozanga kokima yo moko); 15 à 22 secondes na bokundi mobimba | Koleka 1.500 Newtons (325 lbf) na bozindo ya loketo; koleka 4.000 Newtons (900 lbf) na bozindo ya ntolo; koleka 6.500 Newtons (1.500 lbf) ntango ezindi na mai |
| Collapse ya Pont ya Croûte (Cavité creuse na se) | Bagato ya mbuma oyo ezali na likoló oyo ezali na moustique to oyo ezali na mai mingi na kati ya croûte ya makasi ya santimɛtrɛ 10 tii 30 ntango kokitanya yango liboso elongolaki libulu monene oyo ezali na mabulu na nse | Kokwea ya ofele na mbala moko tango mosali abimi na croûte mpe yango ekatani, elandi na avalanche ya ba murs ya zinga zinga | Bakundaka mbala moko moto oyo bazwi mpasi na mozindo ya mɛtrɛ 1 to 10 na nse ya cône; esengaka tube ya cofferdam to kokata V-mur ya poubelle ya libanda |
| Avalanche ya mur ya grain vertical | Mbuma oyo ebebi etelemi na likonzi ya mabanga oyo etɛlɛmi tii na bolai ya mɛtrɛ 6 na kati ya sanduku ntango mosali moko azali kobɛtabɛta na nse na yango na pipe to na pelle | 1 à 2 secondes: Mur vertical oyo bakati na se ekatamaka mpe ekundaka mosali na nse ya poubelle na se ya ba tonnes ya mbuma | Kilo ya konyata mpe ya kokangama makasi; likama monene ya kokweya ya efelo ya mibale likoló ya bato oyo babikisaka |
Mpo na nini kobenda moto oyo akangami na nsinga ebomaka¶
Ntango bakundi moto na mbuma tii na loketo to na ntolo, mbala mingi baninga ya mosala oyo bazali na makanisi malamu babwakaka ye nsinga ya kobenda to nsinga oyo bakangi na tracteur to na levage mpe balukaka kobenda ye semba. Komeka ata moke te kobimisa moto oyo akundami na mbuma.
- Bokangami ya granulaire mpe friction: Mbuma ya kokauka ezali na kilo soki 750 na mètre cube moko (47 livres na pied cube moko, to 56 kino 60 livres na bushel moko mpo na masangu mpe blé). Ntango batye tension oyo ezali komata na nzoto oyo ekundami, ba noix oyo ezali zingazinga ekangamaka esika moko na ba arches oyo ezali kokita na nse na basapato, mabɔlɔngɔ, loketo mpe bilamba ya moto oyo azwi mpasi.
- Kokabwana ya mokuwa ya mokɔngɔ mpe ya matonga: Kobenda mokóló oyo ekómi tii na loketo na mbuma esɛngaka makasi koleka kilo 400 oyo etɛlɛmi, nzokande mokóló oyo akundami mobimba esɛngaka makasi koleka kilo 680. Matonga ya mokuwa ya mokɔngɔ mpe ya mapeka ya moto epanzani na ndenge ya likama, misisa epasukaka, mpe ekabwanaka na nguya oyo ezali mosika na nse ya nguya oyo esengeli mpo na kolonga kofinafina ya mbuma.
- Asphyxiation restrictive: Mbala nyonso oyo moto oyo akundami tii na ntolo na kati ya mbuma abimisaka mpema, mokuwa na ye ya mokɔngɔ ekangamaka na santimɛtrɛ 2 to 3, mpe mbuma oyo ezali lokola mai oyo ezali zingazinga na ye ekɔtaka mbala moko na kati mpo na kotondisa esika wana ya moke. Ntango moto oyo azali kobɛtama ameki kopema, mbuma oyo ekangami ekoki te kozongisama nsima na libándá na misisa ya diaphragme. Na boumeli ya mwa miniti, moto oyo azwi mpasi azali kokangama na nzela ya compression mécanique ya ntolo (asphyxie traumatique) ata soki motó na bango ezali mpenza likoló ya mbuma.
Danger
Kotika ata moke te moto moko atambola na kati ya sanduku ya mbuma ntango auger ya kokita ezali kotambola, mpe kokota ata moke te na sanduku mpo na kobuka mbuma oyo ezali na pont to oyo ezali na croûte uta na kati. Soki mbuma etiki kobima na auger ya nse ntango sanduku ezali naino na mbuma na kati, pont moko ya mabulu esalemi; kobwaka yango na nse bobele uta na ekuke ya libanda ya nsamba na kosaleláká nzete molai ya fibre de verre ntango olati nsinga oyo ekangami.
Eyano ya mbalakaka na litambe na litambe mpo na bokangami ya sanduku ya mbuma¶
Soki omoni moto moko akangami to akundami na sanduku ya mbuma, wagɔ ya gravité, to na ndako ya kobomba biloko ya patatalu, salá matambe yango na molɔngɔ ya sikisiki.
1. Soki ozali moto oyo azali kozinda na mbuma oyo ezali kosopana (komibika) .¶
Soki ozali na kati ya sanduku mpe mbuma etiki nzela na mbalakaka na nse ya makolo na yo:
- Koluka te kotambola to komata likolo na katikati ya poubelle: Na katikati ya poubelle ezali noyau ya aspiration verticale ya vitesse makasi. Bokende mbala moko epai ya efelo ya libanda ya sanduku ya bibende oyo ezali na ondulation, epai mbuma ezali kotɛlɛma tii ntango entonnoir ya katikati ekokóma monene.
- Soki babendi yo na kati ya cône central mpe okoki kokoma na mur te: Bwaka plat na mokɔngɔ to na libumu mbala moko mpo na kopalanganisa esika na yo ya likoló (effet ya sapato ya neige) liboso ete makolo na yo ezinda verticalement na entonnoir.
- Soki bazali kobenda yo mobimba na nse ya likolo ya mbuma: Pema mozindo, katisa maboko na yo likolo ya ntolo na yo mpo na kopesa esika ya bopanzani ya mokuwa na yo ya mokɔngɔ, mpe kɔpɔ mabɔkɔ nyonso mibale makasi likoló ya zolo mpe monɔkɔ na yo (to benda ntolo ya chemise to casquette na yo likoló ya elongi na yo). Masangu to blé oyo ekauki ezali na esika ya mopɛpɛ oyo ezali na eloko te na katikati ya banzete ya mbila soki 35 to 40 %; kokɔtisa mabɔkɔ na yo na kɔpɔ liboso ya monɔkɔ na yo epekisaka ete ba noix mokomoko ekɔta na nzela na yo ya mopɛpɛ (aspiration bronchique) mpo okoka kopema mopɛpɛ ya kati oyo ekangami kati na noix ntango babikisi bazali kokata sanduku.
2. Misala ya mbala moko mpo na baye bazali kotala libanda ya poubelle¶
- Kanga ba augers nionso ya déchargement, ba transporteurs, na ba portes gravitées mbala moko: Bwaka levier principal ya déconnexion électrique na base ya poubelle to kanga tracteur PTO oyo ezali ko diriger auger ya balabala. Kotelemisa koleka ya mbuma etelemisaka kozinda na nse mbala moko.
- Kofungola ventilateur ya aération / séchage ya poubelle ya mbuma (na brûleur/chauffe-eau OFF): Segɔnde nionso etangami mpo na victime oyo akundami oyo azali ko étouffer na mbuma ya molunge mpe ya mputulu. Kofungola ventilateur ya aération ya nse etindaka mopepe ya libanda ya malili, ya sika emata likolo na nzela ya mabele ya sanduku oyo ezali na mabulu mpe na bisika oyo ezali kati na ba noix, epelisaka moto oyo azwi mpasi mpe elongolaka gaz carbonique na zingazinga ya elongi na bango. Verifier soki brûleur ya séchage ya propane to gaz naturel ezali OFF po o souffler mopepe superchauffé te na poubelle.
- Benga 911, 112, to 999 mbala moko: Loba polele: "Tozali na moto oyo akangami na sanduku ya mbuma na [addresse], bonene ya poubelle pene na ezali [X] bushels/tonnes, tozali na mposa ya Tube ya kobikisa mbuma ya Departema ya Pompier mpe Equipe ya Esika oyo ekangami."
- Lock out mpe tag out ba interrupteurs ya auger: Tia serrure na disjoncteur électrique ya auger to tia mutu directement liboso ya panneau de commande po mosali moko te oyo akoya afungola lisusu auger na mbalakaka.
- Ko rassurer victime soki mutu na bango ezali komonana pe stabiliser pente ya grain:
- Lakisa moto oyo azwi mpasi azala kimia, apema malɛmbɛmalɛmbɛ na ntolo na ye ya likoló, mpe abunda te, mpamba te kobalusabalusa esalaka ete bázinda na mozindo mpe esalaka ete bisika oyo mbuma oyo ezali zingazinga na ye ekita na nse likoló ya motó na ye.
- Soki moto oyo azwi mpasi azindi na katikati ya cône inversé na bifelo ya mbuma ya mabangamabanga oyo etombwami likolo ya motó na bango, kotambola ata moke te na nse ya nse ya mbuma wana, oyo ekobimisa avalanche oyo ekokunda elongi na bango.
- Kaka soki mobikisi alati nsinga ya nzoto mobimba oyo ekangami na nsinga ya bomoi ya likoló oyo ezali na bolɛmbu zéro, mpe atɛlɛmi likoló ya nkasa ya minene ya contreplaqué to eskalye ya likoló ya likoló oyo etandami na likoló ya mbuma mpo na kokabola kilo, nde basengeli kolekisa masque ya mputulu, ba lunettes ya libateli, to masque ya oxygène epai ya moto oyo azwi mpasi.
3. Tube ya rescue ya Cofferdam vs kokata ba murs ya poubelle ya mbuma¶
Ba départements ya pompiers basalelaka ba méthodes mibale ya ingénierie primaire pona kobimisa victime oyo akangami na mbuma selon soki mutu ya victime ezali komonana likolo ya grain:
- Méthode A: Victime akundami ndambo (mutu ezali komonana) -> Ko déployer tube ya rescue ya mbuma (Cofferdam):
- Babikisi oyo batɛlɛmi na ba plateformes ya mosala ya contreplaqué batindika ba panneaux courbes ya aluminium to ya polyéthylène ya densité makasi oyo ekangami na nse na se na mbuma na sɛrklɛ oyo ezingi mpenza moto oyo azwi mpasi.
- Soki cylindre ekangami zingazinga ya moto oyo azwi mpasi, babikisi basalelaka mini-auger portable (oyo esalemaka na perceuse sans fil), camion à vide ya mbuma oyo ezali na nguya mingi, to ba bidons/seau ya café mpo na kobimisa mbuma kaka na kati ya tube.
- Wana bazali kolongola mbuma oyo ezali na kati ya nsinga yango, bapusanaka nsinga yango na mozindo tii ntango mpasi oyo ezali na ntolo mpe na makolo ya moto oyo azali kobɛtama ekosila mpe bakoki komata na eskalye oyo batye na kati ya cylindre.
- Méthode B: Victime azali kozindisa mobimba (motó na nse ya mbuma) -> Kata bifelo ya poubelle ya bibende:
- Ntango moto oyo azwi mpasi akundami mobimba na nse ya bamɛtrɛ ya mbuma mpe akoki komonana te, kotimola longwa na likoló esɛngaka ntango molai mingi. Na esika na yango, bato oyo babomaka mɔ́tɔ bakataka bifelo ya libándá ya bibende oyo ezali na ondulation ya sanduku yango na lisalisi ya ba scies circulaires ya kobikisa oyo ezali na ba lame oyo ekata bibende to na ba scies oyo ezongaka sima (jamais ba torches oxy-acétylène, oyo epelisaka mputulu ya mbuma oyo ekoki kopanzana).
- Mobeko ya ingénierie critique pona kokata ba murs ya poubelle: Kokata jamais libulu moko ya munene na ngambo moko ya poubelle ya mbuma. Kolongola bankóto ya ba tonnes ya mbuma na esika moko oyo efungwami na ngámbo moko esalaka ete chargement latérale excentrique ya monene oyo ekangami na bifelo ya sanduku ya bibende mpe ebendaka toit mobimba ya sanduku ya mbuma na nse likoló ya moto oyo azwi mpasi mpe babikisi.
- Na esika na yango, babikisi bakataki 4 kino 6 ya ba flaps symétriques ya forme ya V to ya triangle ya relief oyo ezali na esika moko zingazinga ya circonférence mobimba ya 360 degrés ya poubelle (na bisika ya ngonga ya 12, 2, 4, 6, 8, mpe 10), oyo ezali kaka na nse ya bosanda oyo ekanisami ya moto oyo akundami, kopesaka nzela na mbuma ete esopana libanda ndenge moko na esika ya kobomba biloko mabele zingazinga ya sanduku tii ntango moto oyo azwi mpasi akozipama te.
4. Soins médicaux sima ya extrication ya poubelle ya mbuma¶
Soki asili kosikola na mbuma, moto oyo azwi mpasi asengeli kotalela mbala moko mpasi ya motema mpe kotalela ye na lisalisi ya monganga oyo azali na maladi ya mpasi:
- Kolongolama ya nzela ya mopepe: Tala na monoko mpe na zolo soki ezali na ba noix ya maïs, ba coquillages ya soya, mpe poussière organique dense. Sukola nzela ya mopɛpɛ mpe pesá oxygène humidifié oyo ezali koleka mingi. Ata soki moto oyo azwi mpasi amonani ete azali ekɛngɛ na ebandeli, mputulu ya mbuma ya biologique oyo epemami mpe ba spores ya ba champignons ekoki kobimisa pneumonite chimique aiguë oyo eumelaka, makasi bronchospasme oyo ezali lokola asthme, to Mimpululu ya Mosali bilanga bangonga nsima.
- Kopekisa collapse post-extrication (syndrome ya écrasement/compartiment na choc orthostatique): Na boumeli ya entrapment, mbuma oyo ezalaki zingazinga esalaki lokola elamba ya monene anti-choc kofina makila libanda ya makolo na nzoto ya likolo. Soki otomboli moto oyo akundami na boumeli ya miniti 30 kino 90 semba na likoló, makila esanganaka mbala moko na misisa na ye ya makolo oyo epanzani ntango potassium mpe acide lactique ekɔtaka na motema, mpe yango esalaka ete motema ekangama na mbalakaka (liwa ya kobikisa). Bomba moto oyo azwi mpasi na ngámbo ya nse ntango kaka makolo na ye ebimi, banda kokɔtisa ye mai na misisa liboso ya kosilisa mpasi mobimba soki basali ya lisalisi ya liboso bazali na kati ya poubelle, mpe salá mpo na yango hypothermie oyo ezali na kati to maladi ya molunge na kotalela molunge ya bin.
Gaz silo (\(NO_2\)) mpe libulu ya manure (\(H_2S\)) ba urgences ya espace confiné¶
Ba silos ya tour oyo etondi na masangu ya vert oyo euti kokatama sika, sorgho, alfalfa to avoine, bakisa mpe mabulu ya bosoto ya bibwele na nse ya mabele, ebimisaka bagaze oyo emonanaka te, oyo ebomaka mpe ebomaka basali bilanga mpe mabota mobimba ya bato oyo balingi kobikisa bato na miniti moke.
| Gaz ya Espace Confiné | Formule chimique na ba propriétés physiques | Fenêtre ya Likama ya Sommet | Mecanisme ya Toxicité na ba Symptômes |
|---|---|---|---|
| Dioxyde d'azote (Gaz ya silo) | \(NO_2\): Kilo koleka mopepe (gravité spécifique 1,58); esalaka mbula-mpɛmbɛ ya langi ya jaune to ya motane mpe nsolo makasi oyo ezali lokola javel; efandaka na ba chutes ya silo mpe na ba salles ya alimentation ya nse | Ngonga 12 ya liboso kino poso 3 sima ya kotondisa silo ya tour na silage ya vert oyo bakati (ekómaka na nsɔngɛ na ngonga 24 kino 72) | Ezali kosala réaction na humidité na ba poumons mpo na kosala acide nitrique (\(HNO_3\)) corrosif; ezikisaka ba alvéoles, epesaka kosukosu, kokangama ya ntolo, mpe œdème pulmonaire oyo ebomaka retard ngonga 4 to 30 nsima ya kokutana na yango |
| Gaz carbonique (Gaz ya fermentation) | \(CO_2\): Ezali na langi te, ezali na nsolo te, ezali kilo koleka mopepe (gravité spécifique 1,52); esalaka pisini moko ya mozindo oyo emonanaka te likoló ya silage to mbuma | Ngonga 12 kino baposo mingi sima ya ko ensiling forage ya vert, to na kati ya ba poubelles ya mbuma ya humidité makasi oyo ekangami mpe ba cuvelles ya fermentation | Asphyxiant simple: Ezali ko déplacer oxygène (\(O_2\)) na se ya 10 pour cent; esalaka ete apema nokinoki, azala na kizunguzungu, ayeba lisusu makanisi na boumeli ya segɔnde 30 to 60, mpe akufa na hypoxie |
| Sulfure d'hydrogène (Gaz ya canalisation ya libulu ya manure) | \(H_2S\): Ezali na langi te, ezali kilo koleka mopepe (gravité spécifique 1.19); ezo nsolo lokola makei oyo epɔli na niveau ya se, kasi e paralyser sens ya odeur mbala moko likolo ya 100 ppm | Mbala moko ntango ozali kobulunganisa to kopompa ngulu ya mai to mabulu ya bosoto ya miliki | Asphyxiant cellulaire: Ezali kopekisa cytochrome c oxidase na mitochondrie; likolo ya 500 kino 1.000 ppm, pema moko ("knockdown") epesaka kozanga koyeba mbala moko, kokangama ya mpema, mpe liwa |
| Méthane | \(CH_4\): Ezali na langi te, ezali na nsolo te, ezali pɛpɛlɛ koleka mopɛpɛ (gravité spécifique 0,55); emati tii na likoló ya ba plafonds ya mabulu ya manure oyo ekangami | Bosangisi ya seko na ba tanks ya bosoto oyo ezipami na mopepe te | Gaz inflamable explosif (na 5 à 15 pour cent ya concentration na mopepe) mpe asphyxiant simple na concentration ya likolo |
Ndenge nini kopekisa mpe koyanola na makambo ya mbalakaka ya gaz ya silo¶
- Tikala mobimba libanda ya silo ya tour oyo etondi sika na ba poso 2 to 3 ya liboso: Ba concentrations ya gaz ya dioxyde d’azote (\(NO_2\)) ya likolo esalemaka na ngonga 48 to 72 ya liboso sima ya kokata matiti ya kolia ya vert (mingimingi maïs oyo ezali na stress ya sécheresse to milona oyo ezali na engrais makasi oyo ezali na niveau ya nitrate mingi).
- Tala mpe nsolo liboso ya kopusana penepene na chute ya silo to salle ya kolia: Lokola \(NO_2\) ezali kilo mbala 1,58 koleka mopepe, esopaka na nse chute ya escalier ya silo vertical lokola mayi oyo emonanaka te mpe ba piscines na mabele ya ndako ya bibwele to salle ya kolia oyo ekangami. Luka esika ya langi ya jaune-marron to ya motane oyo ezali kopumbwapumbwa pene na mabele, tache ya jaune na silage to na béton, nsolo ya makasi lokola javel, to bandeke oyo ekufá, bampuku, to ba rodent oyo balali na nse ya chute.
- Tambolá souffleur ya bilei ya silo na boumeli ya miniti ata 30 liboso ya kokota (soki kokota ezali kopengolama te nsima ya pɔsɔ 3): Bomba baporte ya shambre ya silo mpe ekuke ya toit ya likoló polele, fungola souffleur ya bilei oyo esalaka na tracteur mpo na kopompa ba volumes minene ya mopɛpɛ ya sika likoló ya tuyau ya kotondisa, mpe bomba ete souffleur etambola ntango nyonso oyo moto nyonso azali na kati ntango alati monitore oyo ezali na gaz mingi.
- Kokota ata moke te na silo to libulu ya manzanza mpo na kobikisa moto oyo akweyi kozanga Eloko ya kopema oyo ekoki kozala na yango moko (SCBA): Masque ya mputulu ya papier to respirateur ya cartouche epesaka bobateli zéro na bozangi ya oxygène, \(CO_2\), to na concentration makasi \(NO_2\) / \(H_2S\). Soki omoni moto alali kozanga koyeba na kati ya silo to libulu ya manzanza, vanda libanda, fungola souffleur mécanique to ba ventilateurs ya ventilation depuis libanda, fungola ba portes ya libanda ya ndako ya bibwele, mpe benga 911, 112, to 999 mpo na kobikisa SCBA ya departement ya pompier.
- Luka observation obligatoire na lopitalo 48 heures mpo na mutu nionso oyo azali ko inhaler gaz silo: Ata soki mosali bilanga azali kosekwa sima ya kopema mwa gaz ya silo jaune mpe ayoki totalement normal 20 minutes sima, acide nitrique oyo esalemi na kati ya ba poumons na bango ezali kokoba kobebisa ba murs capillaires na kimia. Nsima ya ngonga 6 kino 30, ntango azali kolala na mbeto, mimpululu ya moto oyo azwi mpasi ekoki kotonda na mbalakaka na mai (édème pulmonaire flash aigu), mpe yango ekoki kosala ete akangama ya kokangama ya liwa. Moto nyonso oyo azali na gaz silo asengeli kokende mbala moko na salle d’urgence mpo na kozwa lisalisi ya corticostéroïde mpe kotala ye.
PTO ya tracteur, auger, na ba erueux ya entanglement ya urgence¶
Arbre ya stub ya décollage ya puissance (PTO) na sima ya tracteur e transférer puissance brute ya moteur na ba moteurs rotatifs, ba augers ya mbuma, ba panneurs ya manure, ba balers rond, na ba diggers ya post-hole.
- Ba arbres ya 540 RPM ebalukaka mbala 9 na seconde moko moko, kozinga 2,1 mètres (7 feet) ya bilamba na seconde.
- Ba arbres 1.000 RPM ebalukaka mbala 16,6 na seconde moko moko, kozinga 4 mètres (13 feet) ya bilamba na seconde.
- Tango ya réaction ya mutu pona ko réaliser bilamba ekangami pe etiki ezuaka soki 0,5 à 0,75 secondes. Na ntango bɔɔngɔ na yo ekomi ete nsinga ya sapato oyo ekangami te, nsinga ya sweatshirt oyo ezali na kapoti, manchette ya couvercle oyo epasuka, to nsuki milai esimbaki arbre PTO oyo ezali kobaluka to nsinga ya articulation universelle, arbre esi ebalukaki mbala 5 to 12 mpe ebendi enama to nzoto na yo na nzela ya motuka.
Warning
Komata ata moke te likolo ya nsinga ya motuka ya PTO oyo ezali kobaluka to arbre ya auger ya mbuma mpo na kobikisa kotambola ya segɔnde mitano zingazinga ya tracteur, mpe kosimba ata moke te na ngambo mosusu ya nsima ya tracteur pene na stub ya PTO mpo na kobongisa levier ya bokangami ya points misato ntango PTO ezali kokangama. Ata soki bouclier maître PTO tubulaire ya plastique ezali na esika na yango, roulements oyo ebebi ekoki kopesa nzela na bouclier ya plastique ebalukaka na arbre ya bibende, to gardien ya broche ya clevis oyo ezangi ekoki kokanga makolo ya pantalon na yo mbala moko.
Eyano ya litambe na litambe na bokangami ya PTO to ya masini¶
- Bokanga moteur ya tracteur na puissance PTO mbala moko:
- Mata na kati ya cabine ya tracteur (na ngambo ya sécurité mosika na ligne d’entraînement) to koma na ba commandes mpo na kokende na **levier/interrupteur ya engagement ya PTO na OFF (Disengaged) mpe kobalusa fungola ya allumage na OFF.
- Na ba tracteurs mécaniques diesel ya kala esika kobalusa clé ekataka kaka chargement ya pile sans ko arrêter pompe ya injection ya carburant diesel, benda bouton rouge mécanique Fuel Shutoff (Stop) bouton nzela mobimba libanda pe simbá yango tii tango moteur diesel ekoya na arrêt mort, to kokanga moteur na kokata entrée ya mopepe.
- Botia frein ya parking ya tracteur mpe botia ba blocs ya mabaya to mabanga na se ya ba pneus ya tracteur mpo ete masini ekoka kobalusa mpe kobalola nsinga ya motuka.
- Assess the victim for life-threatening arterial hemorrhage first:
- PTO entanglements frequently tear an arm or leg completely off at the shoulder, elbow, or knee, or cause catastrophic open fractures.
- If bright red blood is spurting or pooling rapidly from a mangled or amputated limb, apply a commercial windlass tourniquet (such as a CAT or SOFTT-W) 5 to 7 centimeters (2 to 3 inches) above the injury site (directly on the upper arm or thigh, never over a joint) and twist the windlass rod until all bleeding stops completely. Note the exact time of application on the victim's forehead.
- Never put the machine in reverse to "unwind" a trapped person:
- If a person's arm, leg, or torso is wrapped around a PTO shaft, pulled into a grain auger tube, or wedged between round baler rollers or corn-picker snapping rolls, never start the tractor or reverse the PTO/hydraulics to back them out. Powered reversal inflicts massive additional crushing, shearing, and arterial tearing.
- How to free a victim wrapped tightly to a PTO shaft:
- Often, a victim's coverall, jacket, or heavy denim pants are wound so tightly around the steel shaft that the fabric acts like a steel band pinning their body against the driveline.
- Cut the clothing away from the victim's body using trauma shears or a curved seat-belt cutter hook, leaving the tightly wound roll of cloth attached to the shaft rather than trying to unwind the victim's broken body around the bar.
- If a limb is wedged inside the universal joint yoke or auger flighting, wait for fire department heavy rescue crews to cut the steel shaft with hydraulic cutters or plasma/reciprocating saws while cooling the metal with water, or use sockets and wrenches to unbolt the telescoping PTO shaft halves from the tractor stub shaft so the shaft section can be transported with the patient if impaled.
- Preserve any amputated hand, arm, foot, or fingers properly:
- Once the victim is stabilized and bleeding is controlled, search the immediate ground or machinery housing for the severed body part (only after verifying the machine is 100 percent locked out).
- Rinse loose dirt or chaff off the amputated part gently with sterile saline or clean bottled water (do not scrub).
- Wrap the severed part in sterile gauze moistened with saline, seal it inside a watertight plastic zip-top bag, and place that sealed bag inside a second container filled with crushed ice and water.
- Never place an amputated limb or finger directly onto bare ice or dry ice, and never submerge it directly in liquid water, as freezing destroys microvascular tissue and makes surgical replantation impossible. Send the cooled part in the same ambulance or helicopter with the patient.
Tip
Every farm family and agricultural crew should keep a trauma first aid kit containing at least two commercial windlass tourniquets, hemostatic gauze, pressure dressings, and trauma shears mounted inside every tractor cab and combine harvester, and take a hands-on Stop the Bleed and farm first aid course from the Red Cross, St John Ambulance, or your regional agricultural safety extension.
Mituna oyo batunaka mingi¶
If someone is trapped waist-deep in a grain bin and the auger is already turned off, why can't we just tie a rope around their chest and pull them out with a hoist?
Dry grain locks tightly around the contours of a buried person's boots, knees, and hips, creating immense frictional resistance. Research by agricultural engineering programs (such as Purdue University and the National Education Center for Agricultural Safety in the United States) shows that pulling a waist-deep adult straight up out of grain requires over 400 kilograms (900 pounds) of force, and pulling a chest-deep adult requires over 680 kilograms (1,500 pounds). Applying that much upward traction with a rope or winch will tighten around the chest to suffocate the victim or dislocate their spine and shoulder joints before their feet ever budge. Instead, rescuers must insert a grain rescue tube (cofferdam) around the victim and scoop the grain out from inside the tube.
Why should you turn ON the grain bin aeration fan when someone is trapped in grain?
When a person is buried chest-deep or completely submerged in grain, they rapidly consume the limited oxygen trapped in the tiny spaces between the kernels around their face while exhaling carbon dioxide, and the surrounding grain traps intense body heat and dust. Switching on the bin's bottom aeration fan (while making sure the drying burner/heater is turned OFF) forces cool, fresh outside air upward through the perforated bin floor and through the grain mass, providing breathable oxygen and cooling the victim until firefighters cut open the bin or deploy a rescue tube.
Can I wear a cartridge respirator or N95 dust mask to go inside a newly filled silo or manure pit to rescue someone?
No, never enter a newly filled forage silo or a manure pit wearing an N95 mask or a chemical cartridge respirator. Air-purifying masks only filter particles or small amounts of vapor from air that already contains normal oxygen; they do not supply oxygen. Inside a gassing silo or manure pit, carbon dioxide and methane displace breathable oxygen below survival levels, while nitrogen dioxide ($NO_2$) and hydrogen sulfide ($H_2S$) reach concentrations that overwhelm filter cartridges immediately. Only rescuers wearing a positive-pressure Self-Contained Breathing Apparatus (SCBA) with an independent compressed-air tank and a tied-off retrieval harness can safely enter.
Why do doctors insist on keeping a farmer in the hospital for 24 to 48 hours after breathing a small amount of yellowish silo gas, even if they feel fine?
Silo gas is nitrogen dioxide ($NO_2$). When inhaled, nitrogen dioxide dissolves in the moist lining of the deep lung air sacs (alveoli) and converts into corrosive nitric acid. Often, the initial coughing and throat irritation subside within 15 minutes, tricking the farmer into going home. Over the next 6 to 30 hours, however, the chemical burn inside the lungs causes delayed, catastrophic fluid leakage (acute pulmonary edema) that can drown the patient in their own lung fluid in the middle of the night, and can cause permanent scarring called bronchiolitis obliterans if not treated early with hospital corticosteroids and oxygen.
How do I stop a diesel tractor engine during a PTO emergency if turning the ignition key to OFF does not stop the engine?
Unlike gasoline engines that require an electrical spark to run, many older and mechanical diesel farm tractors use compression ignition and a mechanical fuel injection pump that continues running even if the electrical ignition key is turned off or the battery cable is cut. To shut down a mechanical diesel tractor immediately, pull the red mechanical "Fuel Shutoff / Engine Stop" pull-knob on the dashboard all the way out and hold it until the flywheel stops turning, or move the hand throttle lever all the way past the idle detent into the fuel cut-off position, while simultaneously moving the PTO lever to the disengaged position.
What is the safest way to clear a plugged combine header, corn picker, or round baler in the field?
Before stepping out of the tractor or combine cab to inspect or clear a plugged header, auger, or baler intake, you must follow the mandatory agricultural Lockout rule: (1) Disengage the PTO or header drive clutch, (2) Lower raised hydraulic headers to the ground or engage the mechanical steel hydraulic cylinder safety lock stop, (3) Place the transmission in Park or Neutral and set the parking brake, (4) Shut off the engine completely and remove the ignition key into your pocket, and (5) Wait until all spinning flywheels, slip clutches, and shafts have come to a complete dead stop (which can take 15 to 30 seconds after engine shutdown) before touching the crop blockage with a wooden clearing stick.
Ba guides oyo etali yango¶
- Severe bleeding and tourniquet application
- Kozoka ya konyata mpe syndrome ya compartiment
- Broken bones, fractures, and sprains
- Kozoka na bisika ya mosala mpe makama ya baizini
- Lisalisi ya liboso ya kozwa monoxyde de carbone mpe milinga
- Asthma attacks and acute respiratory distress
Ba sources e vérifié¶
- Occupational Safety and Health Administration (OSHA, United States): Grain Handling Facilities Standard (29 CFR 1910.272) and Agricultural Machine Guarding (29 CFR 1928.57)
- National Institute for Occupational Safety and Health (NIOSH / CDC, United States): Preventing Entrapment and Suffocation Caused by the Unstable Surfaces of Stored Grain and Silo Gas / Manure Pit Confined Space Alerts
- Health and Safety Executive (HSE, United Kingdom): Safe Working with Agricultural Power Take-Off (PTO) Drive Shafts, Grain Storage, and Slurry Gases (AIS9 / G167)
- Purdue University Agricultural Safety and Health Program (United States): Summary of U.S. Agricultural Confined Space-Related Injuries and Fatalities and Grain Rescue Tube Extrication Protocols
- Canadian Agricultural Safety Association (CASA, Canada): BeGrainSafe Firefighter Grain Entrapment Rescue Training Manual and Farm Machinery Entanglement Guidelines