Kugawa lamba wothirira ndi zida zoyambira

Malamba othirira madzi Pakadali pano ndi njira yothandiza kwambiri yothirira madzi m'malo ouma komanso osowa madzi, ndipo kuchuluka kwa madzi kumagwiritsa ntchito mpaka 95 peresenti. Kuthirira pogwiritsa ntchito madontho kumasunga madzi ambiri komanso kumawonjezera phindu kuposa kuthirira pogwiritsa ntchito ma sprinkler, ndipo kumatha kuphatikizidwa ndi kuthirira feteleza kuti feteleza agwire bwino ntchito mopitirira kawiri. Itha kugwiritsidwa ntchito pamitengo ya zipatso, ndiwo zamasamba, mbewu zogulitsa ndi kuthirira m'malo obiriwira, ndipo ingagwiritsidwenso ntchito pothirira mbewu m'munda m'malo ouma komanso osowa madzi.

Tepi yothirira madzi ikukula mofulumira muukadaulo wathu wothirira madzi, choncho ndikofunikira kwambiri kudziwa za tepi yothirira madzi.

Tepi yothirira madzi pogwiritsa ntchito chubu cha pulasitiki (njira yothirira madzi pogwiritsa ntchito drip irrigation pipe lead) idzagwiritsidwa ntchito ndi madzi kudzera m'mimba mwake wa pafupifupi 10mm capillary kapena mutu wa madontho pa doko kupita ku mizu ya mbewu kuti igwiritsidwe ntchito pothirira. Ndi kudzera mu doko lotulukira lomwe ndi laling'ono kwambiri mu drip head kapena tepi yothirira madzi pang'onopang'ono, madzi amatsika mofanana ndipo pang'onopang'ono amatsika m'nthaka pafupi ndi mizu ya mbewu.

Matepi othirira madzi amagawidwa m'magulu awiri: matepi othirira madzi amagawidwa m'magulu awiri: matepi othirira madzi amagawidwa m'magulu awiri: machubu othirira madzi amaikidwa m'ma ...

Zinthu zomwe zimagwiritsidwa ntchito poika tepi yothirira pogwiritsa ntchito madontho a madzi

● Mutu wothira madzi mkati mwake uli ndi zenera lake losefera, ntchito yabwino yoletsa kutsekeka kwa madzi.

● Kapangidwe ka madzi othamanga. Kuthirira kofanana.

● Kulimba kwamphamvu kwa mutu wodontha ndi payipi.

● Kusintha kosinthasintha kwa malo otsetsereka, mitundu yosiyanasiyana ya ntchito.

Zipangizo zopangira tepi yothirira madzi makamaka single-screw extruder (makina akuluakulu), makina othandizira ndi zozungulira. Kapangidwe koyambira ka chotulutsira chopangidwa ndi sikelo imodzi ndi: chipangizo chotumizira, chipangizo chodyetsera, mbiya, sikelo, mutu ndi die ndi magawo ena asanu.

Chipangizo chotumizira. Ndiko kuti, gawo loyendetsa la screw drive, nthawi zambiri ndi mota, makina ochepetsera ndi ma bearing, ndi zina zotero, mu njira yokhazikika yotulutsira, liwiro la screw liyenera kusungidwa pamlingo wokhazikika kuti lipewe kusinthasintha kwa kuchuluka kwa extrusion, kuti ikwaniritse zofunikira zosiyanasiyana zopangira, screw iyenera kuyendetsedwa pa liwiro losinthasintha, chipangizo chotumizira cha extruder nthawi zambiri chimagwiritsidwa ntchito liwiro losinthasintha lopanda stepless.

Chipangizo chodzazira. Chipangizo chodzazira nthawi zambiri chimagwiritsa ntchito chotsegulira chozungulira, chokhala ndi jekete lamadzi ozizira mozungulira chotsegulira chotsegulira chochotsera kutentha kuchokera mu mbiya yotentha kwambiri kupita ku chotsegulira chotsegulira chotetezera kuti pulasitiki isatenthe mu chotsegulira chotsegulira ndikulumikizana, zomwe zimapangitsa kuti chiwongolerocho chisafanane kapena kuti zinthu zitseke.

Mbiya ndi imodzi mwa zigawo zazikulu za extruder, njira zopangira pulasitiki ndi kupanikizika zimachitika mmenemo, kupanikizika mkati mwa mbiya panthawi yotulutsa kumatha kufika 30 ~ 50Mpa, kutentha nthawi zambiri kumakhala 150 ~ 300℃, ndipo pali zipangizo zotenthetsera ndi zoziziritsira zomwe zili mkati mwa mbiya.

Skurufu ndiye gawo lofunika kwambiri la extruder, chifukwa cha kuzungulira kwa screw, mbiya ya pulasitiki kuti isunthe, kupeza kupanikizika ndi gawo la kutentha, magawo a geometry a screw ali ndi gawo lalikulu pa magwiridwe antchito a screw, magawo akuluakulu a screw: m'mimba mwake wa screw, chiŵerengero cha mbali, chiŵerengero cha kupsinjika, ndi zina zotero, ndipo tsopano screw ya extruder yothirira madzi ndi ya m'mimba mwake wa 40, 50mm, chiŵerengero cha mbali cha pafupifupi 30: 1 ~ 40: 1.

Chivundikiro cha mutu ndi pakamwa. Mutu ndi gawo lopitirira muyeso pakati pa chivundikiro cha pakamwa ndi mbiya, ndipo chivundikiro cha pakamwa ndi gawo lopanga gawo la chinthu, lomwe limakhazikika pamutu ndi mabolts kapena njira zina. Kaya mutu ndi chivundikiro cha pakamwa ndi choyenera kapena ayi zimakhudza kwambiri kutulutsa ndi ubwino wa zinthuzo, ndipo kukula kwake kumatsimikiziridwa malinga ndi zomwe zachitika kapena chidziwitso cha rheological. Makina othandizira, makina othandizira makamaka amapanga zivundikiro, makina okoka ndi makina owongolera magawo. Ntchito yake yayikulu ndi kupanga zinthu, kuziziritsa zinthu, kuwongolera magawo a chinthu. Makina opindika, makamaka opangira zinthu kukhala zinthu zomalizidwa, ndikulemba kuchuluka kwa mamita.

Pulasitiki kuchokera ku hopper kupita ku mbiya, pang'onopang'ono akukankhidwira kumutu, pamene akuzungulira screw, pang'onopang'ono akukankhira ku gawo loyatsira, pamene zinthuzo zikulowa mu gawo lopondereza, chifukwa cha kusazama pang'onopang'ono kwa ulusi, komanso chifukwa cha chophimba chowongolera chakumanja ndi pakamwa pa nkhungu ndi zina zotero, kotero kuti zinthuzo zimapanga kupanikizika kwakukulu.

Zinthuzo zimapindika pang'onopang'ono, nthawi yomweyo mu mbiya ya kutentha kwakunja ndi screw yamkati ndi khoma la mbiya la shear yosakaniza zinthu zomwe zimapangidwa ndi kutentha kwa shear, kutentha kwa pulasitiki kumawonjezeka pang'onopang'ono, pafupifupi gawo limodzi mwa magawo atatu a gawo lopanikizika, linayamba kufika kutentha kokhuthala, pamene njira yotulutsira mpweya ikupita kumutu, kuchuluka kwa zinthu zosungunuka kumawonjezeka pang'onopang'ono, ndipo kuchuluka kwa zinthu zosasungunuka kumachepetsedwa pang'onopang'ono, pafupifupi kumapeto kwa gawo lokakamiza, zinthu zonse zimasungunuka ndipo mkhalidwe wokhuthala, koma kusungunuka sikusungunuka.

Pamapeto pa gawo lopanikizika, zinthu zonse zimasungunuka ndikukhala ngati zokhuthala, koma panthawiyi, kutentha kwa mfundo iliyonse sikuli kofanana. Pambuyo pa gawo losakanikirana la mphamvu ya homogenizing, screw idzasungunula zinthuzo m'mutu pa mphamvu yokhazikika, kuchuluka ndi kutentha.

Chiboliboli cha pakamwa chomwe chili mumutu wa makina ndi gawo lopanga, zinthuzo kudzera mu chiboliboli cha pakamwa chomwe chili mumutu wa makina kuti apange gawo linalake la mawonekedwe ndi kukula kwake, kenako kudzera mu gudumu lopanga pa vacuum kupanga, kuziziritsa, kudula ndi zina zotero kuti mupeze chinthu chonse.