{"id":6703,"date":"2012-09-20T04:56:10","date_gmt":"2012-09-20T09:56:10","guid":{"rendered":"https:\/\/www.insta-pro.com\/fr\/2012\/09\/20\/soybean-dehulling-how-does-it-work\/"},"modified":"2026-01-07T12:41:17","modified_gmt":"2026-01-07T18:41:17","slug":"soybean-dehulling-how-does-it-work","status":"publish","type":"post","link":"https:\/\/instapro.spinuhost.com\/fr\/blog\/ingenierie-maintenance\/soybean-dehulling-how-does-it-work\/","title":{"rendered":"Le d\u00e9pelliculage du soja &#8211; Comment \u00e7a marche&#160;?"},"content":{"rendered":"<p>Le besoin, ou le souhait, de d\u00e9pelliculer les graines de soja, c\u2019est un sujet qui revient souvent.&#160; Le d\u00e9pelliculage (ou d\u00e9cortication) est le proc\u00e9d\u00e9 qui consiste \u00e0 retirer la coque d\u2019une graine, et il peut s\u2019appliquer \u00e0 bien d\u2019autres graines que celles de soja.&#160; Habituellement, un producteur cherche \u00e0 r\u00e9duire la teneur en fibres dans le produit fini, et le d\u00e9pelliculage est alors la solution.<\/p>\n<p>&#160;<\/p>\n<p>Pour commencer, les graines devraient avoir une teneur en humidit\u00e9 d\u2019environ 10&#160;%.&#160; Cette s\u00e9cheresse permet aux graines d\u2019\u00eatre concass\u00e9es lors de leur passage dans le broyeur \u00e0 cylindres.<\/p>\n<p><strong>\u00c9tapes de transformation pour un d\u00e9pelliculage typique&#160;:<\/strong><\/p>\n<p>1. Les graines sont envoy\u00e9es dans le broyeur \u00e0 cylindres.&#160; Id\u00e9alement, les graines de soja devraient \u00eatre broy\u00e9es en 4 \u00e0 6 morceaux.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/rollermill.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-625 aligncenter\" src=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/rollermill.jpg\" alt=\"\" width=\"245\" height=\"234\" \/><\/a><\/p>\n<p>2.&#160;Ensuite, elles sont transport\u00e9es vers l\u2019aspirateur primaire.&#160; L\u2019aspirateur poss\u00e8de une s\u00e9rie de marches sur lesquelles les graines rebondissent.&#160; Le syst\u00e8me ventilateur\/cyclone est r\u00e9gl\u00e9 pour retirer par aspiration uniquement les coques alors que la chair tombe par gravit\u00e9 dans le convoyeur.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/Primary-aspirator.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-626 aligncenter\" src=\"https:\/\/www.insta-pro.com\/wp-content\/uploads\/2015\/10\/DSC_1721-300x199.jpg\" alt=\"\" width=\"225\" height=\"300\" \/><\/a><\/p>\n<p>3. Le cyclone emporte un m\u00e9lange de coques et de chairs et les d\u00e9pose dans le tamiseur\/s\u00e9parateur.&#160; Le tamiseur\/s\u00e9parateur contient une s\u00e9rie de tamis qui s\u00e9parent et classent les coques et les chairs qui restent.&#160; L\u2019action vibratoire d\u00e9tasse le tout et les place suivant diff\u00e9rents niveaux, g\u00e9n\u00e9ralement particules du dessus, particules du dessous, et rebut.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/Sifter.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-629 aligncenter\" src=\"https:\/\/www.insta-pro.com\/wp-content\/uploads\/2015\/10\/DSC_1691-300x199.jpg\" alt=\"\" width=\"300\" height=\"222\" \/><\/a><\/p>\n<p>4. Les particules du dessus et du dessous sont convoy\u00e9es vers leurs propres syst\u00e8mes d\u2019aspiration comprenant des ventilateurs.&#160; De l\u00e0, elles suivent les m\u00eames \u00e9tapes qu\u2019\u00e0 l\u2019aspiration primaire, mais avec des r\u00e9glages moins agressifs pour r\u00e9cup\u00e9rer encore plus de chairs.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/Secondary-aspiration1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-622 aligncenter\" src=\"https:\/\/www.insta-pro.com\/wp-content\/uploads\/2015\/10\/DSC_4181-300x199.jpg\" alt=\"\" width=\"203\" height=\"300\" \/><\/a><\/p>\n<p>5. Enfin, le produit d\u00e9pellicul\u00e9 est pr\u00eat \u00e0 subir une nouvelle \u00e9tape de transformation, qui dans notre cas est bien souvent l\u2019extrusion.&#160; Les coques sont g\u00e9n\u00e9ralement collect\u00e9es et envoy\u00e9es vers un broyeur \u00e0 marteaux pour le broyage final, permettant de r\u00e9duire le volume global.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/dehulled-soybeans.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-630 aligncenter\" src=\"http:\/\/www.insta-pro.com-content\/uploads\/2012\/09\/dehulled-soybeans.jpg\" alt=\"\" width=\"263\" height=\"211\" \/><\/a><\/p>\n<p>En g\u00e9n\u00e9ral, un syst\u00e8me tel que celui d\u00e9crit permettra de r\u00e9cup\u00e9rer environ 98&#160;% du tourteau de soja disponible.&#160; Le reste est g\u00e9n\u00e9ralement perdu, \u00e0 cause de la production de fines et des pertes lors des op\u00e9rations de transport.&#160; Ce syst\u00e8me serait utilis\u00e9 pour une r\u00e9tention de tourteau maximale dans une usine qui produit au moins 4 \u00e0 6 tonnes par heure.&#160; Il existe d\u2019autres possibilit\u00e9s pour les exploitations plus modestes, comme l\u2019ex\u00e9cution de la seule aspiration primaire ou l\u2019utilisation d\u2019un classificateur plus petit.<\/p>\n<p>&#160;<\/p>\n<p>Il faut \u00e9tudier le rapport co\u00fbt\/b\u00e9n\u00e9fice si l\u2019on envisage le d\u00e9pelliculage.&#160; De nouveau, les syst\u00e8mes comme celui qui a \u00e9t\u00e9 d\u00e9crit devraient \u00eatre utilis\u00e9s sur des lignes de grande capacit\u00e9, car les co\u00fbts de l\u2019investissement risqueraient d\u2019\u00eatre plus \u00e9lev\u00e9s que ce que le syst\u00e8me peut rapporter.&#160; Un autre point important, c\u2019est de savoir si vous avez r\u00e9ellement besoin du d\u00e9pelliculage ou non.&#160; Les fibres peuvent \u00eatre n\u00e9cessaires dans l\u2019alimentation, et donc conserver les coques pendant la transformation peut s\u2019av\u00e9rer la meilleure option.&#160; Suivant le processus en aval, les restrictions habituelles dues aux coques peuvent \u00eatre \u00e9limin\u00e9es en faisant appel \u00e0 des moyens comme l\u2019extrusion \u00e0 cisaillement \u00e9lev\u00e9.&#160; Pour plus d\u2019informations, contactez l\u2019\u00e9quipe Insta-Pro pour discuter de transformation et de nutrition.&#160; Joyeux d\u00e9pelliculage&#160;!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le besoin, ou le souhait, de d\u00e9pelliculer les graines de soja, c\u2019est un sujet qui revient souvent.&#160; Le d\u00e9pelliculage (ou d\u00e9cortication) est le proc\u00e9d\u00e9 qui consiste \u00e0 retirer la coque d\u2019une graine, et il peut s\u2019appliquer \u00e0 bien d\u2019autres graines que celles de soja.&#160; Habituellement, un producteur cherche \u00e0 r\u00e9duire la teneur en fibres dans [&hellip;]<\/p>\n","protected":false},"author":68,"featured_media":5240,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7177],"tags":[1220,734],"class_list":["post-6703","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ingenierie-maintenance","tag-depelliculage-des-graines-de-soja","tag-tourteau-de-soja"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Insta-Pro | Soybean Dehulling - How Does it Work?<\/title>\n<meta name=\"description\" content=\"The experts at Insta-Pro discuss the process of dehulling, or decortication, through our roller mill. 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