Mau oyamba a Malasha
Malasha ndi mtundu wa mchere wa carbonized.Amapangidwa ndi kaboni, haidrojeni, mpweya, nayitrogeni ndi zinthu zina, zomwe zimagwiritsidwa ntchito ngati mafuta ndi anthu.Pakali pano, malashawa ali ndi mphamvu zokwana 63 kuposa mafuta amafuta.Malasha amatchedwa golide wakuda komanso chakudya chamakampani, ndiye mphamvu yayikulu kuyambira zaka za zana la 18.Panthawi ya Revolution Revolution, komanso kupanga ndi kugwiritsa ntchito injini ya nthunzi, malasha amagwiritsidwa ntchito kwambiri ngati mafuta akumafakitale ndipo amabweretsa mphamvu zazikulu zomwe sizinachitikepo m'mbiri ya anthu.
Kugwiritsa Ntchito Malasha
Malasha aku China amagawidwa m'magulu khumi.Nthawi zambiri, malasha owonda, malasha akuyaka, malasha amafuta, malasha a gasi, ophatikizana mofooka, osamangika komanso malawi aatali amatchulidwa pamodzi kuti malasha a bituminous;Malasha owonda amatchedwa semi Anthracite;Ngati zosakhazikika zili zazikulu kuposa 40%, zimatchedwa lignite.
Gome la magulu a malasha (makamaka malasha)
| Gulu | Malasha ofewa | Malasha ochepa | Lala lamoto | Kuphika malasha | Mafuta amoto | Malasha a gasi | Chomangira chofooka malasha | Makala opanda bond | Lawi lamoto lalitali | Malasha a bulauni |
| Kusasinthasintha | 0-10 | > 10-20 | > 14-20 | 14-30 | 26-37 | >30 | > 20-37 | > 20-37 | > 37 | > 40 |
| Makhalidwe a cinder | / | 0 (ufa) | 0 (ma block) 8-20 | 12-25 | 12-25 | 9 ndi 25 | 0 (mabowo) ~ 9 | 0 (ufa) | 0~5 pa | / |
Lignite:
Nthawi zambiri zazikulu, zofiirira zakuda, zonyezimira zakuda, mawonekedwe otayirira;Lili ndi zinthu zosakhazikika 40%, poyatsira moto pang'ono komanso zosavuta kugwira moto.Nthawi zambiri amagwiritsidwa ntchito mu gasification, liquefaction industry, boiler boiler, etc.
Malasha a Bituminous:
Nthawi zambiri imakhala ya granular, yaying'ono komanso yaufa, makamaka yakuda ndi yonyezimira, yokhala ndi mawonekedwe abwino, okhala ndi zinthu zopitilira 30% zosasunthika, malo oyatsira otsika komanso osavuta kuyatsa;Makala ambiri a bituminous ndi omata komanso osavuta kuwotcha akayaka.Amagwiritsidwa ntchito pophika, kusakaniza malasha, boiler yamagetsi ndi gasification.
Anthracite:
Pali mitundu iwiri ya ufa ndi tiziduswa tating'ono, zomwe ndi zakuda, zachitsulo komanso zonyezimira.Zonyansa zochepa, mawonekedwe ophatikizika, kaboni wambiri wosasunthika, mpaka 80%;Zomwe zimakhala zosasunthika ndizochepa, pansi pa 10%, malo oyatsira moto ndi apamwamba, ndipo sikophweka kugwira moto.Kuchuluka kwa malasha ndi dothi loyenera kuonjezedwa kuti uyake kuti moto uchepetse.Itha kugwiritsidwa ntchito kupanga gasi kapena mwachindunji ngati mafuta.
Njira yotuluka pakupuntha malasha
Pakugaya malasha, amachokera ku Harzburg grindability coefficient.Kukula kwa Harzburg grindability coefficient, bwino kupera (≥ 65), komanso kucheperako kwa Harzburg grindability coefficient, kumapangitsanso kugaya (55-60).
Ndemanga:
① sankhani makina akuluakulu molingana ndi zomwe mukufuna komanso zabwino;
② Ntchito yayikulu: malasha oyaka moto
Analysis pa mphero zitsanzo
1. Pendulum mphero (HC, HCQ mndandanda pulverized malasha mphero):
Mtengo wotsika mtengo, kutulutsa kwakukulu, kugwiritsa ntchito mphamvu zochepa, zida zokhazikika komanso phokoso lochepa;Choyipa chake ndi chakuti mtengo wa ntchito ndi kukonza ndi wokwera kuposa wa mphero yoyima.
Kuthekera tebulo la HC mndandanda akupera mphero (200 mauna D90)
|
| Mtengo wa HC1300 | Chithunzi cha HC1700 | HC2000 |
| Kuthekera (t/h) | 3-5 | 8-12 | 15-20 |
| Makina opangira magetsi (kw) | 90 | 160 | 315 |
| Makina opangira magetsi (kw) | 90 | 160 | 315 |
| Classifier motor (kw) | 15 | 22 | 75 |
Ndemanga (kusintha kwakukulu):
① Hongcheng patenti lotseguka dera dongosolo anatengera lignite ndi malawi yaitali lawi ndi kusakhazikika kwambiri.
② Chimake cha maluwa a maula chokhala ndi mawonekedwe osunthika a pendulum amatengera mawonekedwe a manja, omwe amakhala ndi zotsatira zabwino.
③ Chipangizo chotsimikizira kuphulika chapangidwira dongosolo.
④ Chotolera fumbi ndi mapaipi apangidwa kuti apewe kuchulukana kwafumbi pakona yakufa momwe kungathekere.
⑤ Panjira yotumizira ufa, ndikofunika kuti makasitomala azitha kutengera gasi ndikuwonjezera ma nitrogen conveying ndi nitric oxide kuzindikira.
2. Chigayo cha malasha choyimirira (HLM ofukula malasha):
Kutulutsa kwakukulu, kupanga kwakukulu, kutsika kochepa kokonzekera, digiri yapamwamba ya automation ndi luso lokhwima la mpweya wotentha.Choyipa chake ndi kukwera mtengo kwa ndalama komanso malo akulu pansi.
Kufotokozera ndi magawo aukadaulo a HLM pulverized malasha ofukula mphero (makampani opanga zitsulo)
| Chitsanzo | Chithunzi cha HLM1300MF | Chithunzi cha HLM1500MF | Chithunzi cha HLM1700MF | Chithunzi cha HLM1900MF | Chithunzi cha HLM2200MF | Chithunzi cha HLM2400MF | Chithunzi cha HLM2800MF |
| Kuthekera (t/h) | 13-17 | 18-22 | 22-30 | 30-40 | 40-50 | 50-70 | 70-100 |
| Zinthu chinyezi | ≤15% | ||||||
| Ubwino wazinthu | D80 | ||||||
| Mankhwala chinyezi | ≤1% | ||||||
| Mphamvu yayikulu yamagalimoto (kw) | 160 | 250 | 315 | 400 | 500 | 630 | 800 |
Gawo I:Ckuthamanga kwa zipangizo
ChachikuluMalashaZinthu zimaphwanyidwa ndi chophwanyira ku chakudya chabwino (15mm-50mm) chomwe chingalowe mu mphero.
GawoII: Gkukwera
WophwanyidwaMalashazipangizo zing'onozing'ono zimatumizidwa ku hopper yosungirako ndi elevator, ndiyeno zimatumizidwa ku chipinda chopera cha mphero mofanana komanso mochuluka ndi wodyetsa kuti akupera.
Gawo III:Sankhanindi
Zida zogayidwa zimasinthidwa ndi makina opangira, ndipo ufa wosayenerera umayikidwa ndi gulu ndikubwerera ku makina akuluakulu kuti agayidwenso.
GawoV: Ckusonkhanitsa zinthu zomalizidwa
Ufa womwe umagwirizana ndi fineness umayenda mupaipi ndi gasi ndikulowa m'malo otolera fumbi kuti alekanitse ndi kusonkhanitsa.Ufa womalizidwa womwe wasonkhanitsidwa umatumizidwa ku silo yomalizidwa ndi chipangizo chotumizira kudzera pa doko lotayira, kenako nkumapakidwa ndi tanker yaufa kapena paki yokha.
Zitsanzo zogwiritsira ntchito pokonza ufa wa malasha
Chitsanzo ndi chiwerengero cha zipangizo izi: 3 waika HC1700 lotseguka dera mphero akupera
Kukonza zopangira: Anthracite
Ubwino wa zinthu zomalizidwa: 200 mauna D92
Zida Mphamvu: 8-12 matani / ola
Ntchitoyi ndi yopereka malasha opangira malasha otenthetsera pansi pa nthaka mu mgodi wa malasha wa Bulianta wa gulu.Wopanga ntchitoyo ndi China Academy of Coal Sciences.Kuyambira 2009, Chinese Academy of Coal Sciences yakhala bwenzi lapamtima la Hongcheng komanso mgwirizano wamphamvu.Ma projekiti onse otenthetsera malasha ndi malasha opukutidwa amatengera mphero ya Hongcheng kuti agwirizane ndi dongosolo.Pazaka 6 zapitazi, Hongcheng wagwirizana moona mtima ndi Academy of Malasha Sciences, ndi pulverized malasha pulverizing ntchito zafalikira m'madera onse waukulu kupanga malasha ku China.Ntchitoyi imatengera ma seti atatu a mphero za Raymond okhala ndi HC1700 open circuit system, omwe adapangidwa mwapadera kuti azipera malasha opukutidwa.Hc1700 pulverized malasha akupera mphero utenga dera lotseguka, unsembe wa chipangizo kuphulika-umboni ndi miyeso zina, ndi dongosolo ndi otetezeka ndi odalirika.Kutulutsa kwa HC1700 mphero ndi 30-40% kuposa mphero yachikhalidwe ya pendulum, yomwe ndi yopulumutsa mphamvu komanso yosamalira chilengedwe.
Nthawi yotumiza: Oct-22-2021
