II. Nhatu Dzinoshanda Nzvimbo dzeDesulfurization Absorber

Iyo inopinza inogona kukamurwa kuita matatu anoshanda nzvimbo kubva kumusoro kusvika pasi: oxidation crystallization, absorption uye demisting zone.

(1) Oxidation crystallization zone inoreva slurry dziva remunyu, uye basa rayo guru kunyungudutsa limestone uye oxidize calcium sulfite.

(2) Nzvimbo yekunyura inosanganisira inopinza, tireyi uye akati wandei akaturikidzana espray. Kune akawanda hollow cone nozzles pane imwe neimwe layer yespray mudziyo; basa guru rekunyura rinogara pane acidic inosvibisa uye inobhururuka madota anotorwa mu flue gasi.

(3) Demisting zone inoratidzira maviri-nhanho demisters pamusoro pekupfapfaidza layer. Basa rayo guru nderekuparadzanisa madonhwe mumhepo yeflue, kuderedza kukanganiswa kwemidziyo yepasi uye dosage yekunyura.

Nzvimbo yekunyura (absorption area) inoreva nzvimbo iri pakati pemutsara wepakati peinopinza yechinhu chinopinza uye chepamusoro-soro chekupfapfaidza. Slurry yakapfapfaidzwa inosuka gasi rine sulfur-ine flue munzvimbo iyi. Hurefu hwakakwana hwenzvimbo yekunyura hunova nechokwadi chepamusoro desulfurization rate. Iyo yakakwirira yehurefu, yakaderera iyo inodiwa kutenderera pombi kuyerera mwero Pasi pezvinodiwa zvakafanana pane desulfurization rate.

Iyo yekupfapfaidza zone ye absorber inotsanangurwa se:

(1) Pfayira shongwe: 1.5m pazasi pepfumbu yakaderera kusvika kunzvimbo yekubuda yemuromo wepamusoro.

(2) Liquid column tower: kubva panobuda muromo wakadzikira kusvika 0.5m pamusoro pembiru yemvura yepamusoro apo mapombi ese ekutenderera ari kushanda.

Iyo inopinza ndiyo yakakosha mudziyo we flue gas desulfurization system. Inoda hombe gasi-mvura yekuonana nzvimbo, yakanaka gasi kunyudzwa kuita, kudiki kudzvinyirira kurasikirwa. Yakakodzera hukuru-hukuru flue gasi kurapwa. Matanho ekutanga anotevera anopedzwa muchishandiso ichi:

① Kutorwa kwemagasi anokuvadza mukuwacha slurry;

② Kupatsanurwa kwe flue gasi uye kugeza slurry;

③ Neutralization ye slurry;

④ Oxidation yepakati neutralization zvigadzirwa mugypsum;

⑤ Gypsum crystallization.

III. Absorber Kuumbwa

Iyo inopinza inowanzo kupatsanurwa kuita silinda, flue gasi inlet uye flue gasi rekubuda muchimiro. Iyo flue gasi inopinza uye yekubuda yakarara kunze mukati meiyo inonyudza uye pamusoro peiyo inonyudza zvinoenderana neyakajairwa. Iyo absorber cylinder inogona kukamurwa kuita slurry pool, spray layer uye demisting nzvimbo mukushanda. Dziva rinotsvedza riri pazasi peiyo inonyudza inlet kazhinji, uye iyo yekupfapfaidza layer uye demister iri pakati pe flue gasi inlet nekubuda. Iyo flue gasi inobuda yeabsorber inogona kunge iri pamusoro yakananga yekubuda kana yakatwasuka parutivi.

Nzvimbo yakajairwa yekupfapfaidza inoratidzira masaya ekupfapfaidza uye nozzles nemimwe michina. Zvichienderana nekuita desulfurization, nzvimbo yekupfapfaidza yemamwe maabsorber ichave yakashongedzerwa nematireyi, Venturi tsvimbo uye zvimwe zvishandiso.

IV. Zvido zvekugadzira zveAbsorber

(1) Iyo calcium-sarufa ratio haifanirwe kunge yakakura kupfuura 1.05.

(2) Paunenge uchishandisa in-tower demister, flue gasi velocity yeabsorber pasi pemamiriro ekugadzira haifanirwe kudarika 3.8m/s, inogona kutariswa ne Coriolisflowvakasanganaer.

(3) Chimiro chakasanganiswa chedziva slurry uye shongwe muviri inosarudzwa.

(4) Nguva yekugara yekutenderera kwe slurry haifanire kunge isingasviki 4 min, uye mvura column tower haifanirwe kunge isingasviki 2.5 min.

(5) Mhete inochengetedza mvura uye chivharo chekunaya kwemvura inofanira kuiswa pamharadzano yemvura inopinza inopinza uye rusvingo rwakamira rwechinyuchi.

(6) The inlet flue yespray shongwe isina chinhu inofanira kurongeka nenzira ye oblique yakadzika yekupinda. Kana iyo yakachinjika yekupinda hurongwa inogamuchirwa, inofanirwa kuve nechokwadi kuti yakaderera nzvimbo yeflue pagokora rekutanga padhuze neinopinza inopinza ndeye 1.5 kusvika 2m yakakwirira kupfuura yakajairwa inoshanda yemvura level yeabsorber slurry pool. Iyo inlet flue yeiyo liquid column tower inogona kurongeka nenzira yakatwasuka kana yakatwasuka yekupinda.

(7) Chinhambwe chiri pakati pezvimedu zvekupfapfaidza zviri padyo neshongwe isina chinhu haifanire kunge iri pasi pe1.8m.

(8) Yepamusoro yekupfapfaidza layer yeshongwe yekupfapfaidza isina chinhu inofanira kungopfapfaidza ichidzika, uye chinhambwe chemambure kubva pachikamu chepasi chedhishi haifanire kunge chiri pasi pe2m.

(9) Kune shongwe dzekupfapfaidza dzakashongedzerwa ane porous trays uye tabulators, porous trays uye tabulator blades anofanira kugadzirwa alloy anti-corrosion zvinhu.

(10) Kana iyo yekupisa gasi yekudziya uye kupisa yekutsinhana mudziyo isina kuisirwa, kusarudzwa kwemagadzirirwo paramita senge isina shongwe yekuyerera mwero, yemvura-gasi reshiyo, uye slurry yakasimba yemukati yekunyudza inofanirwa kufunga nezve zvinodiwa zve desulfurization kunyatsoita uye pesvedzero yezvinhu zvakaita sekudzikisa huwandu hwemambure egasi madonhwe anotakurwa.

(11) Iyo dhizaini yekunyudza inofanirwa kuchinjirwa kune dhizaini renji yebhailer mutoro uye marasha sarufa yemukati. Munhu ane njereisiri yenyukireyaslurry density meterkubvaLonnmeterinokurudzirwa kutarisa kuwanda kwe limestone uye gypsum panzvimbo yekubuda kuti ive nechokwadi chakakwana desulfurization rate.