Fabric kuwedzera uye okisijeni kugabhuka utsotso

Okisijeni kana okisijeni-weighted kugabhuka kubvunda (KVP kana ZWL) Nzira iri mhando autogenous nokupenya simbi sulfide mhangura inonyanya, kuitwa kuturika. The chikuru zviri izvi zvinoshandiswa sezvo hwokugadzira okisijeni ichivhuvhuta uye nokupisa sulfides chinjikira plume uye compensator jira.

Process INCO (DPC) yakatanga zvikurukuru senzira kubudisa mvura nesarufa yakasviba zuva pulp nebepa maindasitiri iri kubudiswa mhangura sulphide inonyanya. Autogenous simbi mutoo uchishandisa zvokutenga chikero ive oxidant rakachena okisijeni kwacho (95% O2) rinoitwa mufekitari 1953 Copper Cliff muCanada. Zvakafanana muitiro yakazokudziridzwa muSoviet Union uye chinotaurwa pana mupudzi mhangura Almalyk (Uzbekistan). Musiyano mukuru kubva CFP PVP ndechokuti anobvarurwa-bvarurwa nokuoma sanganisa uchabereka zvikuru muvira kubudikidza burner esimende mbishi rinotungamirirwa yakatambarara (hunyambiri mugodhi utsotso is) uye anoshandisa akachena okisijeni sezvo nedanho oxidative kwebhosvo. simbi muitiro rinoitwa kuwana matte 45-55% (kana kugamuchira mumwe dzakapfuma matte nokuda kwazvo kupisa muovheni overheats). The tsvina magasi ane 80% SO2. Tarisiro yakafarikana maindasitiri kushanda kwacho ane INCO.

Chinonyanya kukosha rwokugadzira zvinhu CFP vari: kuvapo muna chinjikira murazvo vira kunowedzera dzokugara nguva inoramba zvirimo, izvo zvinofanira mu pfungwa kusimudzira oxidation intensification nezvimedu kupatsanurwa batch mangé pezvakaitwa, uyewo kudziyisa uye tishu compensators; shoma zvingangoitika yokudzora ukuru desulfurization yakananga zvibereko zvayo, uye hazviiti yokuwana matte ine zviri 65-70% mhangura nokuda kukangamwirwa iyi yakawanda zvakawandisa kupisa uye kurera tembiricha muchoto kusvika 1550-1600 ° C, uye zvakawanda, nokudaro chaizvo achidzikisa nemishonga yacho refractory brickwork; kusakwanisika nokuti chete nezvikonzero kuwedzera kugadzirwa mwero simbi mevira; Vhoriyamu duku vakawana panguva kuvanatsa sarufa-vapfumi magasi, ari yokungotaura zviri SO2 zvinogona kusvika 90-95%. Kana CFP zvishandiswezve pulverulent Kuisa pfungwa pachinhu iri chakaunzwa unopfuta kwazvo nzvimbo hwokugadzira okisijeni ndege kubva Kompenz kwakavharwa nenyama, zvinoita kuti paumbwe guruva uye gasi plume, sezvamakaropafadzwa oxidized uye yakarukutika zvokuvakisa. Pfungwa paumbwe uchanyangadika iri bhati muvira delaminated kuti matte uye gang. Fungai aomeswa nenguvo dzakarukwa zvakanaka vakapararira musanganiswa pamwe fluxes chinjikira ndege iridzwe rinokosha burner rimi muchoto. Physico-namakemikari aiita pakati zvakamisa hurongwa mutoro ichivhuvhuta okisijeni aibuda muguruva dziriko. Madonhwe vari rakachengetedzwa kubva plume uchanyangadika pakudzika mevira uye dzinoumba mvura nemvura.

Zvinotevera makasimba muvira CFP:

- mutariri-okisijeni tochi, uko oxidation kuti sulphide kuitika zvisina kukwana uye slagging pezvakaitwa shteyno- (I);

- gang kugeza pemvura, sezvamakaropafadzwa zvinoyerera uye pakupedzisira ozeyewa zvinoitwa nekuita ose sulfides vane oxides (II);

- Stein-gang kugeza, uko wakagumiswa muitiro uye slagging shteyno- (II, III).

- jira kuwedzera majoini

CFP vira mutariri zvinosanganisira remhangura Kuisa pfungwa pachinhu chimwe uye Goldstone. Musanganiswa yakanga yakasvinwa, uye mwando zviri 12-16% muna dhiramu rwakapwa kuti residual Kuwanda 4-7%, ukuwo kushandisa compensators. Chechipiri nokuomesa Danho rinoitwa munyika wehunyambiri Dryer mutopota, rezasi chikamu iyo inoshanda inopisa magasi, nenharo kune 400-500 C pamwero wenyika 12-14 m / s. Final mwando pamusoro 0.1-0.5%, dryers waivako Kuisa pfungwa pachinhu chimwe ndiwo 80-85 m / hr, kubudikidza bvisika mwando kusvika 4 t / h.

High nokukurumidza oxidative pezvakaitwa Proportional kutotanga kuonana pemvura, zvinoomesa kuchigadzirisa uye chafariz sezvamunoita matte simbi muoti. Kugadzirira dzakapfuma matte kunoguma paumbwe zvakawandisa kupisa uye zvinokonzera pfeka lining. For chafariz kudzora muitiro uyu nyaya zvakafanira kuderedza vachikwanisa pamusoro Unit Kuisa pfungwa pachinhu chimwe. Kuwedzera kurwisa lining kessoniruyut Arch uye vira rusvingo chinogadzirwa achiparadzira zvinhu (guruva, graphs gang), nokudaro dzekugonesa mhangura zviri matte pasina kuwedzera chafariz kunokonzerwa mukereke uye compensators tishu.

CFP vira masonry yakavakwa nezvidhinha uye compensators hromomagnezitovogo Kompenz-kwakavharwa nenyama. The magasi kubva muchoto kuburikidza flue pakati imwe combustion nzvimbo chimwe. Sezvo okisijeni ichivhuvhuta muitiro rinoshandiswa aine zviri 95-98 vol. %. Stein, rine 40-50% mhangura, iri asunungurwa kuburikidza maburi migomo siphons. Gang chadururirwa kuburikidza taphole iri gang, uye anotumirwa kutambisa. Furnace magasi uye guruva kuburikidza rakananga kubatana kusvika flue gasi kutonhora. Guruva Kubviswa vanenge 10% maererano nokurema musanganiswa. Guruva magasi 300-400 g / m≥ kupinda pakupora bhaira uye panguva yayo nzira yokubudisa - 200-250 g / m≥.

CFP inogona zvinobudirira kushandiswa kubudiswa cú-Zn-, cú-Ni-, et unto. Sulphide inonyanya.