Painting tractors yellow at Caterpillar demands the use of a significant number of filters. When these filters are spent, the paint continues to cure in an exothermic process, which may result in spontaneous combustion and a dangerous filter fire. We at Caterpillar hypothesized that a filter made from starch could be dissolved in water, solving two problems: decrease the probability of spontaneous combustion, as well as nearly eliminate a significant waste stream. Several different filter types were made from starch: foam filter, perforated and expanded filter, paper baffle filter, thermoformed baffle filter, and fibrous filter. The foam filter was never successfully produced; the perforated and expanded filter as well as the paper and thermoformed baffle filters were successfully produced, but are of no significant use to Caterpillar's painting operation. The fibrous filter was produced with a non-ideal sized fiber, resulting in a filter of 75% starch and 25% polyester. The fibrous filter is one that is used in Caterpillar's everyday operations, and the starch prototype provides much promise to meet the necessary requirements for use in production. Future goals include finalizing the starch fibrous filter and testing it in a real-life situation; this, however, is dependent on developing technologies to create the ideal sized fiber.
|Place of Publication
|Illinois Waste Management and Research Center
|Published - 1998
- Painting, industrial -- Waste minimization
- Painting, industrial -- Pollution prevention
- Filters and filtration
Rangi ya trektora ya manjano katika Caterpillar inahitaji matumizi ya idadi kubwa ya vichungi. Wakati filters hizi ni kutumika, rangi inaendelea kuponya katika mchakato exothermic, ambayo inaweza kusababisha mwako wa moja kwa moja na hatari filter moto. "Katika Caterpillar, tulidhani kwamba kichujio kilichotengenezwa kutoka kwa wanga inaweza kufutwa katika maji, kutatua matatizo mawili: kupunguza uwezekano wa kuchoma kwa wenyewe kwa wenyewe, na pia karibu kuondoa mkondo mkubwa wa taka. """ Aina kadhaa tofauti za vichungi zilitengenezwa kutoka kwa wanga: vichungi vya povu, vichungi vilivyofunikwa na kupanuliwa, vichungi vya karatasi vya baffle, vichungi vya baffle vya thermoformed, na vichungi vya nyuzi. Filter ya foam haikufanikiwa kutengenezwa; filters perforated na kupanuliwa, pamoja na karatasi na thermoformed baffle filters, zilitengenezwa kwa mafanikio, lakini hazina matumizi makubwa kwa shughuli ya uchoraji ya Caterpillar. Filter ya nyuzi ilitengenezwa na nyuzi zisizo na ukubwa mzuri, na kusababisha kichujio cha 75% cha wanga na 25% ya polyester. Filter ya nyuzi ni moja ambayo hutumiwa katika shughuli za kila siku za Caterpillar, na mfano wa starch hutoa ahadi nyingi za kukidhi mahitaji muhimu ya matumizi katika uzalishaji. Lengo la baadaye ni pamoja na kukamilisha kichujio cha nyuzi za starch na kuijaribu katika hali ya maisha halisi, lakini hii inategemea teknolojia za kuendeleza kuunda nyuzi za ukubwa bora. """Kuna vitu vingi vya kuvutia katika mazingira ya mazingira, na kwa hivyo ni muhimu sana kwa viwanda vya kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora, kuchora."