Khetho ea lisebelisoa tsa leloala la mashala 1: leloala la mashala a lebelo le tlase

Moemeli ea tloaelehileng oa leloala la mashala a lebelo le tlase ke leloala la bolo.Molao-motheo oa ts'ebetso ke: mochini o nang le matla a phahameng ka har'a lebokose la gear ho khanna poleiti ena e boima e pota-potileng, bolo ea tšepe ka mokhoa o bonolo e potoloha ho ea bophahamong bo itseng ebe e oela fatše, ka tšusumetso ea bolo ea tšepe holim'a mashala le pakeng tsa eona. bolo ea tšepe, pakeng tsa bolo ea tšepe le poleiti ea balebeli, mashala a siloa.Mashala a sa tšoaneleheng a mahoashe ka ho fetesisa aa aroloa ha a phalla ka separator ea phofo e mahoashe ka morao ho leloala la bolo, ebe e romelloa poleiti e chitja ho tloha pompong ea phofo e khutlisang bakeng sa ho sila hape.Ntle le ho tsamaisa phofo ea mashala, moea o chesang o boetse o phetha karolo ea ho omisa mashala.Ka hona, moea o chesang o boetse o bitsoa desiccant tsamaisong ea phofo.Sehlahisoa se na le litšobotsi tsa nako e telele e sa khaotseng ea ts'ebetso, tlhokomelo e bonolo, tlhahiso e tsitsitseng le botle, bokhoni bo boholo ba polokelo, karabelo e potlakileng, phetoho e kholo ea ts'ebetso, tekanyo e tlaase ea moea oa mashala, mochine o bolokang mashala, mefuta e mengata ea mashala a sila joalo-joalo.Haholo-holo e sebelisoa bakeng sa mashala a thata le a mahareng, haholo-holo bakeng sa mashala a nang le moferefere o phahameng le thepa e matla e senyang.Leha ho le joalo, leloala lena la lebelo le tlaase le leholo, le sebelisa tšepe e ngata, le nka mobu o mongata, 'me le na le matsete a holimo.Kahoo leloala la bolo le loketse ts'ebetso e felletseng ea mojaro.

Mofuta oa 2 oa lisebelisoa tsa mashala:leloala la mashala a lebelo le mahareng 

Leloala la mashala a lebelo le mahareng le boetse le tsejoa e le leloala la mashala le emeng, le khetholloang ka likarolo tse silang tse entsoeng ka lihlopha tse peli tsa motsamao o lekanyelitsoeng oa 'mele o silang.Leshala le hatelloa le ho siloa pakeng tsa bokaholimo ba litopo tse peli tse silang ebe lia pshatloa.Ka nako e tšoanang, moea o chesang ka leloala o omisa mashala ’me o romela mashala a thuntsoeng ho searohanyang se karolong e ka holimo ea leloala.Ka mor'a karohano, leshala le kolobisitsoeng la boholo bo itseng bo ntšoa ka leloala ka moea o phallang, 'me mashala a mahoashe a pshatlehileng a khutlisetsoa sebakeng sa ho sila bakeng sa ho siloa hape.Leloala la mashala a lebelo le mahareng le na le melemo ea lisebelisoa tse kopaneng, maoto a manyane, ho boloka matla a matla (hoo e ka bang 50% ~ 75% ea leloala la bolo), lerata le tlase, taolo e bobebe le ts'ebetso e bobebe.Empa ha e loketse ho sila mashala a thata ho feta.

Khetho ea 3 ea lisebelisoa tsa leloala la mashala: leloala la mashala a lebelo le phahameng

Lebelo la leloala la mashala le lebelo le phahameng ke 500~ 1500 r/min, le entsoeng haholo-holo ka rotor e lebelo le khetla e silang.Tloaelehileng fene sila le hamore sila joalo-joalo.Leloaleng, mashala a silakanngoa ke ho thulana pakeng tsa matla a lebelo le phahameng le khetla e silang le ho thulana ha mashala.Mofuta ona oa leloala la mashala le pulverized mashala separator theha ka kakaretso, sebopeho ke e bonolo, diseke ee, le dipeeletso tsa pele ke tlaase, haholo-holo a loketse bakeng sa ho sila phahameng mongobo lignite le dikahare tse phahameng fetohang, ho le bonolo ho sila bituminous mashala.Leha ho le joalo, hobane poleiti ea tšusumetso e senyehile ka ho toba mme e apesoa ke phallo ea moea, bophelo ba eona ba ts'ebeletso hangata bo ka ba 1000h feela ha ho sila lignite, ho nkela sebaka khafetsa, 'me metsi a mashala a fatše ha aa lokela ho ba holimo haholo, ao hangata a sebelisetsoang li-boilers tse fehloang ka kotloloho litsing tsa motlakase, 'me ha lia lokela ho sebelisoa bakeng sa lithupelo tsa ente ea sebōpi.

Mefuta e meraro e ka holimo ea khetho ea lisebelisoa tsa ho sila ka mashala e na le melemo le melemo, ha ho khethoa lisebelisoa tsa ho sila ka mashala, hoa hlokahala ho nahana ka khetho e akaretsang ea tsamaiso ea pulverizing.Sistimi ea phofo e ka aroloa ka mekhahlelo e 'meli: mofuta o otlang ka kotloloho le mofuta oa polokelo oa mahareng (o hlalosoang e le mofuta oa polokelo).Mokhoeng oa ho pshatla ka ho toba, mashala a siloa hore e be leshala le thunngoeng ka leloala la mashala ebe le bululeloa ka ho toba sebōping hore le tuka.Ka tsamaiso pulverization polokelo, leshala pulverized pele ho bolokoa ka moqomo oa mashala pulverized, 'me joale ho ea ka litlhoko tsa moroalo boiler, leshala pulverized e romeloa ho tloha pulverized mashala bin ho sebopi bakeng sa ho tuka ke pulverizer.Litsamaiso tse fapaneng tsa pulverizing li boetse li loketse mefuta e fapaneng ea khetho ea lisebelisoa tsa ho sila tsa mashala le mashala.Ho ea ka sistimi ea pulverization, re akaretse motheo o latelang oa khetho ea leloala la mashala:

(1) Steel bolo leloala bohareng polokelo bin mofuta chesang moea phofo tsamaiso: e ka sebelisoa bakeng sa anthracite (Vsr <9%) le apara ka matla ka holim'a mashala.

(2) Ball mill bohareng ba mofuta oa ho qeta mokhoa oa ho fana ka phofo ea khase: haholo-holo e sebelisetsoang mashala a nang le matla a matla le a mahareng (Var-19% ~ 27%) mashala a bituminous.

(3) Ka makhetlo a mabeli ho tsoa habeli bolo ea tšepe leloala leloala ka ho toba tsamaiso ea 22-241: bakeng sa maqhubu a mahareng a phahameng (Vs.7-27% ~ 40%) mashala a bituminous.

(4) Leloala la mashala a lebelo le phahameng ka ho toba: le loketse ho sila mashala a bituminous a nang le lintho tse ngata tse sa tsitsang (Vanr-27% ~ 40%), mongobo o phahameng (mongobo oa ka ntle Mp≤15%) le ho apara ka matla, hammoho le mashala. tahlehelo ea bohata e ka tlase ho matla, ts'ebetso ea ho tuka ha mashala e ka tuka, 'me boleng ba mashala a pulverized bo finyella litlhoko tsa leloala la mashala.

(5) Fan leloala ka ho toba tsamaiso e butsoelang: e loketse bakeng sa lignite khoholeho ea mobu apara index Ke≤3.5 le 50 MW le ka tlas'a bituminous mashala yuniti boiler