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E pānuitia ana e Martin Engineering ngā taputapu horoi whitiki tuarua pakari e rua, he mea hanga ēnei mō te tere me te ngāwari o te tiaki.
Kua hangaia ngā Kaihoroi Whakahoki DT2S me DT2H hei whakaiti i te wā kore mahi o te pūnaha me te mahi mō te horoi, te whakatika rānei, me te āwhina hoki ki te whakaroa i te roa o te ora o ētahi atu.ngā wāhanga kawe.
He kātere mata wehewehe ahurei e neke ana ki roto, ki waho hoki i runga i te mandrel maitai kore waikura, ka taea te mahi tiaki, te whakakapi rānei i te kaihoroi me te kore e aukati i te kaikawe ina whakaaetia te haumaru o te mara. "Ahakoa kī tonu te kaihoroi i ngā rauemi," te kī a Dave Mueller, Kaiwhakahaere Hua Kaikawe i Martin Engineering, "ka taea te tango i te haurua o te anga wehewehe kia taea ai te whakakapi i te huānga tātari i roto i te rima meneti. Mā tēnei ka taea e te kaiwhakamahi te whai kātere tāpui me te whakakapi wawe i ngā mata ina hiahiatia kia whakakapia. Kātahi ka taea e rātou te whakahoki i ngā kātere kua whakamahia ki te toa, te horoi me te whakakapi i ngā mata kia rite ai mō te ratonga e whai ake nei."
He pai ēnei kaihoroi tuarua mō ngā momo mahi maha, mai i te keri maina, te tukatuka rauemi me te keri rua ki te hanga sima, te tukatuka kai me ētahi atu mahi whakahaere rauemi papatipu. Ka whakaitihia e ngā hua e rua te whakahokinga mai o ngā rauemi, ā, kua hangaia hei whakauru i ngā kaikawe whakamuri kia kore ai e pakaru ngā whitiki, ngā hononga rānei. He mata maitai me te pito tungsten carbide i roto i te turanga ngāwari, ka whakaratohia e te kaihoroi DT2 he otinga māmā, whai hua hoki mō ngā raruraru maha e pā ana ki te backhaul.
Kua hangaia te DT2H Reversible Cleaner XHD mō ngā āhuatanga tino uaua, me ngā kawenga taumaha i runga i ngā whitiki 18 ki te 96 inihi (400 ki te 2400 mm) te whānui, ā, e tere ana ki te 1200 ft/min (6.1 m/s). Ka puta pea te kohikohinga kawe-muri i te hokinga mai o te kawe ina kore te pūnaha horoi i runga i te kawe e tango i te nuinga o ngā rauemi e piri ana ki te whitiki kawe i muri i te tango i te kawenga. Ko te pikinga o te kohikohinga ka hua ake he utu mahi horoi koretake, ā, ki te kore e whakahaeretia, ka arahi pea ki te pakaru wawe o ngā wāhanga kawe.
"Ka tino piri te kakano o te kawe whakamuri, ā, ka taea e tēnei te whakakino i ngā wāhanga kawe me te pakaru wawe," te whakamārama a Mueller. "Ko tētahi o ngā mea nui ki te angitu o ēnei kaihoroi ko te koki rake kino (iti iho i te 90°) o ngā mata. Ki te koki kino, ka whiwhi koe i tētahi mahi 'karakura' e whakaiti ana i te kino pea o te whitiki me te whakarato i te mahi horoi pai rawa atu," tāna.
Pērā i tōna tuakana, teina rānei, ka taea te tāuta i te Martin DT2S Reversing Cleaner ki ngā whitiki 18 ki te 96 inihi (400 ki te 4800 mm) te whānui. Heoi, he rerekē ki te DT2H, kua hangaia te DT2S kia eke ki te tere whitiki iti iho o te 900 fpm (4.6 m/hēkona) ki ngā whitiki me ngā hononga whakamomona. E tohu ana a Mueller ko te take nui o tēnei ko ngā rerekētanga o te tono: "He anga angiangi te DT2S e āhei ai te uru ki ngā wāhi whaiti tae atu ki te 7 inihi (178 mm). Nō reira, ka taea te tāpiri i te DT2S ki tētahi whitiki iti rawa."
Ka taea te whakamahi i ngā kaihoroi DT2 e rua i roto i ngā taiao mahi-waenga ki te taumaha, e whakarato ana i ngā otinga roa ki ngā raruraru uaua e puta mai ana i te backhaul me te whakaiti i ngā rauemi e mawhiti ana.
Ka kitea tētahi tauira o te mahi ma i te maina o Pueblo Viejo Dominicana Corporation (PVDC) i te kawanatanga o Sanchez Ramirez, tata ki te 89 kiromita ki te raki mā uru o Santo Domingo, Dominican Republic.
Ka nui rawa te kawe mai me te puehu i runga i ā rātou pūnaha kawe, ka hua ake he pakaru utu nui o ngā taputapu, he wā kore mahi i whakaritea, ā, ka nui haere te tiaki. E 365 ngā rā o te tau e mahi ana te whakaputa, engari i waenga i a Āperira me Oketopa, ka meinga e te makuku te kohikohi o ngā matūriki uku pai, ka piri te utanga. Ko te matū, he rite te matotoru ki te paraihe niho matotoru, ka taea hoki te piri i ngā matūriki iti ki te whitiki, ka puta he kawe kino ka kino ai ngā pūrei me ngā pane.
I roto noa i ngā wiki e rua, i whakakapia e ngā tohunga hangarau a Martin ngā waru whitiki o nāianei i ngā wāhi 16 ki ngā horoi tuatahi a Martin QC1 Cleaner XHD me ngā mata urethane piri-iti i hangaia mō ngā kawenga rauemi piri, me te horoi tuarua DT2H. Ka taea e ngā mata horoi tuarua te tu atu i ngā pāmahana raumati wera, ngā taumata makuku teitei me ngā wā whakaputa pumau.
Whai muri i te whakahoutanga, kua ma ake, kua haumaru ake, kua whai hua ake hoki ngā mahi, ā, kua nui ake te whakapono o ngā kaiwhakahaere me ngā kaipupuri hea ki te haere tonu o te mahi a te maina, e matapaetia ana ka whai hua mō ngā tau 25 e whai ake nei, neke atu rānei.
Wā tuku: Hurae-18-2022
