Kedu ka Osisi Asphalt si arụ ọrụ ma ka na-enwe mmasị na gburugburu ebe obibi?

Ị chetụla echiche ihe na-eme n'azụ Stack ahụ?

Oge ọ bụla ị na-aga n'okporo ụzọ e ji osisi rụọ ọhụrụ, ị na-anya ụgbọala n'elu obere ụlọ ọrụ kemịkalụ nke na-ada ụda na 180 °C. Mana kedu ka ụlọ ọrụ asphalt si arụ ọrụ, gịnịkwa mere ndị ọrụ nkwekọrịta, ndị na-etinye ego, ma ọ bụ ọbụna ndị na-eme njem gburugburu ebe obibi kwesịrị iji lebara ya anya? Nọgidenụ na-aga ebe ahụ—mgbe ị gụchara akwụkwọ a, ị ga-enwe ike ịga ije n'ebe ọrụ ọ bụla wee kwuo okwu dị ka onye nwe ebe ahụ.

Isi Ọrụ: Site na Nchịkọta ruo na Ngwakọta Na-ekpo ọkụ

N'obi ya, osisi asphalt bụ njikọ nke okpomọkụ, kemistri, na fiziki mekaniki nke oge ya. Usoro ihe a na-eme bụ otu ihe ahụ mgbe niile:

1. Ebe a na-etinye ihe n'ime akpa oyi na-ewepụta ihe ndị e ji agwakọta ihe (nkume, ájá, RAP) n'elu ihe e ji ebu eriri na nha nhazi mbụ.
2. Ihuenyo e ji ekpuchi ihe dị iche iche na-adọta nnukwu nkume karịa mmiri ahụ—ee, “ọ bụghị” ka ndị na-eme ihe nkiri na-ekwu—tupu ọ daa n'ịkụ ọkpọ ahụ.
3. Igwe nkụ na-eme ka okpomọkụ dị n'ime ya dịkwuo elu ruo ±160 °C ebe igwe nkụ na-eme ka ọkụ dị ogologo karịa bọs ụlọ akwụkwọ.
4. Igwe elu ọkụ na-ebuli ihe kpọrọ nkụ ahụ elu n'elu ụlọ elu ahụ ebe ọ na-adaba n'ime oche mkpuchi na ebe a na-etinye ihe ọkụ.
5. A na-esi na tankị ndị a na-anaghị ekpuchi ekpuchi apụta bitumen ma gbanye ya site na ihe e ji agba mmiri; a na-eji ihe na-eme ka ihe dị n'ime ya (lime, simenti) tụọ ya iji gbanwee viscosity ya.
6. Pugmill ma ọ bụ igwekota ihe eji agwakọta ihe abụọ na-agwakọta ihe niile ruo ihe dị ka sekọnd isii—oge dị mkpa n'ihi na asphalt na-esi ike ngwa ngwa.
7. Silos ndị na-ebu ibu na-echekwa ngwakọta ọkụ ahụ ruo mgbe gwongworo na-abata, nke na-eme ka ụlọ ọrụ ahụ na-arụ ọrụ n'ọnọdụ kwụsiri ike kama ịkwụsị ịmalite.

Ị na-agbanwe site na otu ogbe gaa na nke na-aga n'ihu? Ọ dịghị mkpa. Osisi ngwakọta drum na-apịachi nzọụkwụ 3-6 n'ime otu ogbe ogologo, na-agbanwe njikwa nri ziri ezi maka mmepụta ton dị elu karịa 20% kwa elekere.

Ihe Ndị Dị Mkpa Ọ dịghị Onye Na-ekwu Maka Ya

1. RAP olu akwa

A naghị atụfu pavement asphalt reclaimed (RAP) naanị; ọ na-abanye site na olu dị n'etiti drum ebe ihe mejupụtara virgin nke a kpoolarị ruo 180 °C na-agbapụta mmiri mmiri na-agbaghị bitumen ochie ọkụ. Ọ na-ekpo oke ọkụ, anwụrụ ọkụ na-acha anụnụ anụnụ na-apụta; ọ dị oke oyi ma ị ga-enweta ihe na-arapara arapara, nke na-anaghị ejikọta ọnụ.

2. Njide Ụlọ Akpa na nke Abụọ

Mgbe gas ikuku si n'ime drum ahụ pụta, ihe na-eme ka akpa akpa nke pulse-jet gbapụta na-amịkọrọ obere ihe ruo 1 micron. Osisi ọgbara ọhụrụ na-etinye carbon ma ọ bụ lime slurry arụ ọrụ iji mee ka polycyclic aromatic hydrocarbons (PAHs) gbaa gburugburu. Nsonaazụ ya: oghere dị n'okpuru 10%, nke na-emeri ọtụtụ anwụrụ ọkụ kọfị.

3. Ákwà mkpuchi okpomọkụ silo nke na-ebu ibu

Ị hụtụla ka ụfọdụ silos si na-enwu obere n'abalị? Ihe mkpuchi na-ekpuchi okpomọkụ gburugburu silo cone ahụ, na-egbochi "ebe ọkụ" nke na-eme ka bitumen dị oke ọnụ gbanwee ngwakọta gị ka ọ bụrụ popcorn na-agbawa agbawa.

Akụkọ Ifo Gburugburu Ebe Obibi - Ịkwụsị

"Osisi Asphalt bụ nnukwu anụ na-eme ka anwụrụ ọkụ na-agbaze." Nke a bụ ihe dị ka afọ 1970. Kemgbe nnwale EPA nke Usoro 9 ghọrọ ihe a na-ahụkarị, nkezi mwepụta kwa tọn ngwakọta agbadala 97%. Ihe ọkụ NOx dị ala, draịva ugboro ole na-agbanwe agbanwe na moto ọ bụla, na ihe mgbakwunye ngwakọta ọkụ nke na-ebelata okpomọkụ mmepụta ruo 135 °C niile. Isi okwu: ugbu a ị na-ewepụta obere ihe ọkụkụ na-agba tọn 200/awa karịa ka nwanne nna gị na-agba otu paver asphalt.

Nhazi dijitalụ na mmezi amụma

Ihe mmetụta ndị e ji ígwé ojii jikọọ na-esochi nrụgide eriri, ịma jijiji na-ebute, na ionization ọkụ ọkụ. Ụdị mmụta igwe na-egosi ihe ndị na-adịghị mma izu ole na ole tupu eriri nri oyi agbaa n'elekere abụọ nke ụtụtụ - kwenye m, ọ dịghị onye chọrọ iji ọkụ ọkụ jikọọ ya. N'ime afọ 25 nke osisi, nyocha amụma nwere ike ịchekwa ruo nde US $1.2 n'oge ezumike na-atụghị anya ya.

Ihe Nlereanya ROI nke Ụwa N'ezie

Otu mpaghara Midwestern gbanwere site na 100% virgin gaa na 40% RAP ngwakọta. Ọnụ ego mbụ: US $180,000 maka olu na ihuenyo RAP ọhụrụ. Ịkwụghachi ụgwọ: ọnwa 14 site na nchekwa US $110,000 kwa afọ na virgin aggregate na bitumen. Uru: modulus siri ike nke ụzọ ahụ ka mma 8%, n'ihi na bitumen ochie na-eme ka mastic sie ike. Ọ dịghị njọ maka "ihe mkpofu" mpempe akwụkwọ ochie gwara gị ka ị jupụta.

Nsogbu Ndị A Na-ahụkarị na Ndozi Ngwa Ngwa

• Mmiri dị na RAP: Ogologo mkpuchi ahụ dị mita 3, kpuchie ya na tarps, ma tinye ya n'ihu na mbụ.
• Anwụrụ ọkụ na-acha anụnụ anụnụ: Belata okpomọkụ ntinye drum site na 10 Celsius ma lelee oke ikuku na mmanụ ọkụ; ọ na-abụkarị nke bara ụba.
• Nkewa na silo: Wụnye ihe ntinye cone nke na-eruba ibu; ọ na-efu US $5, ọ na-echekwa tọn 50 nke ngwakọta a na-efunahụ kwa ọnwa.

Usoro Ọdịnihu Ị Ga-elele

Ụlọ ọrụ OEM nke ụlọ ọrụ na-eji ihe ndị na-ere ọkụ hydrogen na 60% RAP mixes site na iji bio-rejuvenators sitere na pine resin. Ọ bụrụ na kredit carbon dị n'elu US $70 kwa tọn, tụọ anya na ndị na-ebu ụzọ ga-enwetaghachi ihe ndozi n'ime ihe na-erughị afọ anọ. Ka ọ dị ugbu a, ngwa ndị na-ekpo ọkụ na-agbakọ n'elu ụlọ ọrụ ọ bụla dị adị na-ada n'okpuru US $30, nke pụtara na ọbụna obere pavers nwere ike itinye aka na nkwekọrịta "okporo ụzọ ndụ ndụ" ozugbo edobere maka ụmụ nwoke ukwu.