Tsanangudzo yekusefa, mukugadziriswa kwemvura, kusefa kazhinji kunoreva maitiro ekuchengeta yakamiswa tsvina mumvura nesefa zvinhu sefa sejecha requartz uye anthracite, kuitira kuti mvura ijekeswe.Iyo porous zvinhu zvinoshandiswa kusefa zvinodaidzwa sefa media, uye jecha requartz ndiyo inonyanya kufarirwa midhiya.Iyo sefa zvinhu ndeye granular, powdery uye fibrous.Zvinowanzoshandiswa sefa zvinhu ijecha requartz, anthracite, activated carbon, magnetite, garnet, ceramics, mabhora epurasitiki, nezvimwe.
Multi-media sefa (sefa mubhedha) iri yepakati sefa inoshandisa mbiri kana kupfuura midhiya sesefa layer.Muindasitiri inotenderedza mvura yekurapa sisitimu, inoshandiswa kubvisa tsvina mutsvina, adsorb mafuta, nezvimwewo, kuitira kuti mhando yemvura isangane nezvinodiwa zvekudzokorodza..Basa rekusefa rinonyanya kubvisa zvakamiswa kana colloidal tsvina mumvura, kunyanya kubvisa zvinobudirira tunhu tudiki uye mabhakitiriya asingakwanisi kubviswa nehunyanzvi hwekunaya.MaBOD uye COD zvakare ane imwe dhigirii yekubvisa maitiro.
Maitiro ekuita anoratidzwa mune inotevera tafura:
filter composition
Multimedia sefa inonyanya kuumbwa nesefa muviri, inotsigira pombi uye vharafu.
Muviri wesefa unonyanya kusanganisira zvinotevera zvikamu: Yakarerutswa;zvikamu zvekugovera mvura;kutsigira zvikamu;backwash air pipe;sefa zvinhu;
Sefa hwaro hwekusarudza
(1) Inofanirwa kunge iine simba rakakwana remagetsi kudzivirira kukurumidza kupera uye kubvaruka panguva yekuwachira musana;
(2) Kugadzikana kwemakemikari kuri nani;
(3) Haina zvinhu zvinokuvadza uye zvine chepfu kuhutano hwevanhu, uye haina zvinhu zvinokuvadza kugadzirwa uye zvinokanganisa kugadzirwa;
(4) Sarudzo yemidziyo yekusefa inofanirwa kuyedza kushandisa sefa zvinhu zvine hombe adsorption, yakakwira kusvibiswa kwekubata simba, kugadzirwa kwemvura yakakwira uye kunaka kwemvura.
Musefa zvinhu, hurungudo dzinonyanya kuita basa rekutsigira.Munguva yekusefa, nekuda kwesimba rayo rakakwirira, mapeji akagadzikana pakati peumwe neumwe, uye mapores makuru, zviri nyore kuti mvura ipfuure mumvura yakanatswa zvakanaka mukugezesa kwakanaka.Saizvozvo, backwashing Panguva yekuita, backwash mvura uye backwash mhepo inogona kupfuura nepakati zvakanaka.Muchigadziro chemazuva ose, matombo akakamurwa kuita zvinyorwa zvina, uye nzira yekugadzira inobva pasi kusvika kumusoro, yekutanga yakakura uye idiki.
Hukama huri pakati pehukuru hwechikamu chesefa zvinhu uye kureba kwekuzadza
Huyero hwehurefu hwemubhedha wesefa kusvika paavhareji saizi yesefa zvinhu ndeye 800 kusvika 1 000 (design yakatarwa).Saizi yechikamu chesefa zvinhu zvine hukama nekurongeka kwesefa
Multimedia sefa
Multi-media mafirita anoshandiswa mukurapa kwemvura, akajairika ndeaya: anthracite-quartz sand-magnetite filter, activated carbon-quartz sand-magnetite filter, activated carbon-quartz sand filter, quartz sand-ceramic filter Wait.
Zvinhu zvikuru zvinofanirwa kutariswa mukugadzirwa kwesefa layer yemulti-media sefa ndeiyi:
1. Zvigadzirwa zvakasiyana-siyana zvemasefa zvine musiyano mukuru we density kuti uone kuti chiitiko chezvikamu zvakasanganiswa hazvizoitiki mushure mekuvhiringidza kwe backwashing.
2. Sarudza iyo sefa zvinhu zvinoenderana nechinangwa chekugadzira mvura.
3. Saizi yechikamu inoda kuti saizi yechikamu chepasi sefa idiki pane saizi yechinhu chepamusoro chesefa kuti ive nechokwadi chekushanda uye kushandiswa kuzere kweiyo yakaderera sefa zvinhu.
Muchokwadi, kutora matatu-layer sefa mubhedha semuenzaniso, iyo yekumusoro layer yesefa zvinhu ine yakakura particle size uye inoumbwa nemwenje sefa zvinhu zvine low density, senge anthracite uye activated kabhoni;chikamu chepakati chesefa zvinhu zvine saizi yepakati uye yepakati density, kazhinji inoumbwa nejecha requartz;Iyo sefa zvinhu ine inorema sefa zvinhu zvine diki diki saizi uye yakakura density, senge magnetite.Nekuda kwekudzikisira kwe density mutsauko, iyo sefa zvinhu kusarudzwa kwematatu-layer midhiya sefa inogadziriswa.Iyo yekumusoro sefa zvinhu inotora basa rekusefa yakakasharara, uye iyo yakaderera layer sefa zvinhu zvinotamba basa rekusefa, kuitira kuti basa remubhedha we-multi-media sefa rinoitwa zvizere, uye kunaka kwemvura kunobuda pachena kuri nani pane izvozvo. ye single-layer filter material sefa mubhedha.Pamvura yekunwa, kushandiswa kweanthracite, resin uye mamwe mafirita media kunowanzo kurambidzwa.
Quartz jecha sefa
Iyo quartz jecha sefa sefa inoshandisa jecha requartz sesefa zvinhu.Inogona kunyatsobvisa yakaturikwa yakaoma mumvura, uye ine pachena kubvisa mhedzisiro pa colloid, iron, organic matter, mishonga yezvipembenene, manganese, mabhakitiriya, mavhairasi uye zvimwe zvinosvibisa mumvura.
Iine mabhenefiti ekupikisa kudiki kusefa, yakakura chaiyo nzvimbo, yakasimba asidhi uye alkali kuramba, oxidation kuramba, PH application renji ye2-13, yakanaka kusvibiswa kwekudzivirira, etc. Iyo yakasarudzika mukana wequartz jecha sefa ndeyekuti nekugadzirisa sefa. zvinhu uye sefa Dhizaini yesefa inoona iyo yekuzvigadzirisa-inogadzirisa kushanda kwesefa, uye iyo sefa zvinhu zvine simba kuchinjika kumisikidzwa yemvura yakasvibira, mamiriro ekushanda, pre-kurapa maitiro, nezvimwe. Pasi pemamiriro akasiyana ekushanda, kunaka kwemvura yetsvina inovimbiswa, uye iyo sefa zvinhu zvakaparadzirwa zvizere panguva yekugezeswa kumashure, uye maitiro ekuchenesa akanaka.
Iyo jecha sefa ine mabhenefiti ekukurumidza kusefa kumhanya, yakanyanya kusefa kurongeka, uye yakakura yekubira kugona.Inoshandiswa zvakanyanya mumagetsi emagetsi, zvemagetsi, zvinwiwa, pombi mvura, peturu, indasitiri yemakemikari, simbi, machira, kugadzira mapepa, chikafu, dziva rekushambira, mainjiniya ekanzuru uye mamwe magadzirirwo emvura, mvura yemumba, mvura yakadzokororwa uye minda yemvura yakasvibiswa.
Iyo quartz jecha sefa ine hunhu hwechimiro chakareruka, kudzora otomatiki kwekushanda, kuyerera kukuru kwekugadzirisa, nguva shoma yekugezesa kumashure, kunyatsoita kusefa, kushomeka kushomeka, uye nyore kushanda nekugadzirisa.
Activated carbon filter
Iyo sefa zvinhu ino activated kabhoni, iyo inoshandiswa kubvisa ruvara, hwema, yasara chlorine uye organic zvinhu.Iyo nzira huru yekuita ndeye adsorption.Activated carbon is an artificial adsorbent.
Activated kabhoni mafirita anoshandiswa zvakanyanya mukugadziriswa kwemvura yemumba nemvura muindasitiri yechikafu, indasitiri yemakemikari, simba remagetsi uye mamwe maindasitiri.Nekuti activated carbon ine pore yakagadziridzwa zvakanaka uye yakakura chaiyo nzvimbo, ine yakasimba adsorption inokwana yezvakanyungudutswa organic compounds mumvura, zvakaita sebenzene, phenolic compounds, etc. madhayi anobviswa zvakanaka.Kubviswa kweplasma yegranular activated carbon yeAg^+, Cd^2+ uye CrO4^2- mumvura inopfuura 85%.[3] Mushure mokupfuura neyakagadzirwa kabhoni sefa mubhedha, zvakaturikwa zvakasimba mumvura zviri pasi pe 0.1mg/L, iyo COD yekubvisa mwero inowanzoita 40% ~ 50%, uye yemahara chlorine iri pasi pe0.1mg/L.
Backwash process
Iyo yekudzokera kumashure kwesefa inonyanya kureva kuti mushure mesefa yashandiswa kweimwe nguva, iyo sefa zvinhu layer inochengeta uye inotora imwe huwandu hwema sundries uye tsvina, izvo zvinoderedza kunaka kweiyo tsvina yesefa.Unhu hwemvura hunoderera, mutsauko wepakati pakati pekupinza uye kubuda kwepombi unowedzera, uye panguva imwe chete, kuyerera kwesefa imwe kunoderera.
Nheyo yekugezesa kumashure: kuyerera kwemvura kunodzokera kumashure kunopfuura nepakati pesefa zvinhu layer, kuitira kuti iyo sefa layer iwedzere uye inomisa, uye iyo sefa zvinhu layer inocheneswa neshear simba rekuyerera kwemvura uye kudhumhana kwesimba rezvimedu. kuti tsvina iri musefa layer inopatsanurwa uye inoburitswa nemvura yekugezesa musana.
Kudiwa kwekugezeswa musana
(1) Munguva yekusefa, izvo zvakamiswa zvakamiswa mumvura yakasvibira zvinochengetwa uye zvinoshambadzirwa nesefa zvinhu layer uye zvinoramba zvichiunganidzwa musefa zvinhu layer, saka ma pores eiyo sefa layer anovharika zvishoma nezvishoma netsvina, uye keke yekusefa. inoumbwa pamusoro pesefa layer, ichisefa musoro wemvura.Kurasikirwa kunoramba kuchiwedzera.Kana imwe muganhu yasvika, iyo sefa zvinhu zvinoda kucheneswa, kuitira kuti iyo sefa layer idzorere kushanda kwayo uye kuramba ichishanda.
(2) Nekuda kwekuwedzera kwekurasikirwa kwemusoro wemvura panguva yekusefa, simba rekugera remvura inoyerera pane tsvina yakashambadzirwa pamusoro pesefa zvinhu inova yakakura, uye zvimwe zvimedu zvinoenda kune yakaderera sefa zvinhu pasi pesimba re mvura inoyerera, iyo inozopedzisira yakonzera nyaya yakamiswa mumvura.Sezvo zviri mukati zvichiramba zvichikwira, kunaka kwemvura kunoderera.Kana tsvina ikapinda musefa layer, sefa inorasikirwa nekusefa kwayo.Naizvozvo, kune imwe nhanho, iyo sefa zvinhu zvinoda kucheneswa kuitira kudzoreredza iyo tsvina inobata simba reiyo sefa zvinhu layer.
(3) Nyaya yakaturikwa mumvura yetsvina ine huwandu hukuru hwezvinhu zvipenyu.Kuchengeta kwenguva refu musefa layer kunotungamira mukupfumisa uye kuberekana kwebhakitiriya uye tupukanana musefa layer, zvichikonzera huwori hweanaerobic.Sefa zvinhu zvinoda kucheneswa nguva nenguva.
Backwash parameter kudzora uye kutsunga
(1) Kureba kwekuzvimba: Panguva yekugezesa kumashure, kuitira kuti ive nechokwadi chekuti mafirita emidziyo ane mapeji akakwana kuitira kuti tsvina ikurumidze kuburitswa kubva musefa layer nemvura, chiyero chekuwedzera chesefa layer chinofanira kunge chakakura.Nekudaro, kana chiyero chekuwedzera chakanyanya, huwandu hwezvikamu zviri musefa zvinhu pavhoriyamu inodzikira, uye mukana wekudhumhana kwechidimbu wakaderedzwa, saka hazvina kunaka kuchenesa.Double layer sefa zvinhu, kuwedzera mwero i40%—-50%.Ongorora: Panguva yekushanda kwekugadzira, kureba kwekuzadza uye kureba kwekuwedzera kwesefa zvinhu zvinotariswa zvisina tsarukano, nekuti panguva yakajairika yekuwachira, pachave nekurasikirwa kana kupera kwesefa zvinhu, izvo zvinoda kuzadzikiswa.Iyo yakagadzika sefa layer ine zvinotevera zvakanakira: kuve nechokwadi kugadzikana kweiyo yakasefa yemhando yemvura uye mhedzisiro ye backwashing.
(2) Kuwanda uye kumanikidzwa kwemvura yekugeza shure: Muchigadziro chekugadzirisa zvinodiwa, simba remvura yekudzokera shure ndeye 40 m3 / (m2 • h), uye kumanikidzwa kwemvura yekudzokera shure ndeye ≤0.15 MPa.
(3) Backwash air volume uye pressure: simba re backwash air is 15 m / (m • h), uye kumanikidzwa kwemhepo yekudzokera shure ndeye ≤0.15 MPa.Cherechedza: Munguva yekuwachira kwemashure, mhepo inopinda yekudzokera shure inounganidzwa kumusoro kwesefa, uye yakawanda yacho inofanira kubudiswa kuburikidza nevhavha-yegomba rekupedza simba.mukugadzirwa kwemazuva ose.Izvo zvinodiwa kuti utarise patency yevhavha yekupedza nguva zhinji, iyo inonyanya kuratidzwa nehuwandu hwerusununguko rwevhavha bhora kumusoro uye pasi.
Gasi-mvura yakasanganiswa backwash
(1) Shamba nemhepo kutanga, wozogeza neshure nemvura: kutanga, dzikisa mwero wemvura wesefa kusvika 100 mm pamusoro pepamusoro pesefa layer, rega mumhepo kwemaminetsi mashoma, wozogeza kumashure nemvura.Inokodzera mafirita ane inorema pamusoro kusvibiswa uye chiedza mukati kusvibiswa.
Cherechedza: Ivhavha inoenderana inofanira kuvharwa panzvimbo;kana zvisina kudaro, kana chiyero chemvura chichidonha pasi pepamusoro pesefa, chikamu chepamusoro chesefa hachizopiswi nemvura.Munguva yekukanganiswa kwepamusoro uye pasi kwezvikamu, tsvina haigoni kubudiswa zvakanaka, asi ichaenda zvakadzika mukati mesefa.kufamba.
(2) Yakasanganiswa backwashing yemhepo nemvura: Mhepo nemvura yekuwachisa kumashure inodyiswa panguva imwe chete kubva kuzasi kweiyo static sefa layer.Mhepo inoumba mabhuru mahombe mujecha rejecha panguva yekusimuka, uye inoshanduka kuita mabhuru madiki kana wasangana nesefa zvinhu.Iyo ine scrubbing mhedzisiro pamusoro peiyo sefa zvinhu;backwashing pamusoro pemvura kunosunungura sefa layer, kuitira kuti sefa zvinhu zvive zvakamira, izvo zvinobatsira kumhepo kukwesha sefa zvinhu.Migumisiro yekuwedzera yemvura yekudzokera shure uye mhepo yekudzokera shure inoiswa pamusoro peumwe neumwe, iyo yakasimba kudarika kana ichiitwa yega.
Cherechedza: Kumanikidzwa kwemvura yekudzokera shure kwakasiyana nekumanikidzwa kwemashure uye kusimba kwemhepo.Kuchenjerera kunofanira kubhadharwa kune hurongwa hwekudzivirira mvura yekugeza kumashure kuti ipinde mupombi yemhepo.
(3) Mushure mokunge mhepo-mvura yakasanganiswa yakagadziriswa yapera, rega kupinda mumhepo, chengetedza kuyerera kwakafanana kwemvura yekudzokera shure, uye ramba uchigeza kwemaminetsi matatu kusvika ku5 min, mabhudzi emhepo akasara mumubhedha wesefa anogona kubviswa.
Matauriro: Unogona kutarisisa chimiro chevharuvhu yekuburitsa kaviri-gomba kumusoro.
Ongororo yeZvikonzero zveSefa Material Kuomeswa
(1) Kana iyo tsvina yakavharirwa pamusoro pepamusoro pesefa yakatsetseka haigone kubviswa zvinobudirira mukati meimwe nguva, mune inotevera backwashing process, kana kugoverwa kwemhepo yekudzokera kumashure isiri yunifomu, kukwirira kwekuwedzera kuchave kusina kuenzana.Kusvetwa kwemhepo yekugezesa, uko kusvusvura kukurumidza kudiki, kusvibiswa kwakafanana nemafuta emafuta pamusoro peiyo sefa zvinhu hazvigone kubviswa zvinobudirira.Mushure meiyo inotevera yakajairika kusefa kwemvura kutenderera kunoshandiswa, mutoro wemunharaunda unowedzera, tsvina inonyura kubva kumusoro ichienda mukati, uye mapellets anowedzera zvishoma nezvishoma.hombe, uye panguva imwechete wedzera mukati mekuzadza kudzika kwesefa kusvika iyo sefa yese yakundikana.
Matauriro: Mukushanda chaiko, chiitiko chemhepo isina kuenzana yekuwash inowanzoitika, kunyanya nekuda kwekupwanya kwepombi yepasi yekuparadzira mhepo, kuvharika kana kukuvara kwechivharo chesefa yenzvimbo, kana deformation yegridi tube spacing.
(2) Iyo sefa zvinhu zvimedu zviri pamusoro pesefa layer idiki, pane mashoma mikana yekudhumhana panguva yekuwachira kumashure, uye iyo yekumhanyisa idiki, saka hazvisi nyore kuchenesa.Majecha akabatanidzwa ari nyore kugadzira mabhora madiki ematope.Kana iyo sefa layer yadzokororwa mushure mekugezeswa kumashure, mabhora edhaka anopinda muchikamu chezasi chesefa uye oenda kukadzika sezvo mabhora ematope anokura.
(3) Mafuta ari mumvura mbishi anovharirwa musefa.Mushure mekugeza kumashure uye chikamu chakasara, chinounganidza nekufamba kwenguva, chinova ndicho chinhu chikuru chinotungamira kuoma kwesefa zvinhu.Nguva yekuita backwashing inogona kutariswa zvinoenderana nemhando yemhando yemvura yemvura yakasvibira uye zvinodikanwa zvemhando yemvura inoyerera, uchishandisa maitiro akadai sekurasikirwa kwemusoro, effluent kunaka kana nguva yekusefa.
Chengetedzo yekusefa kugadzirisa uye kugamuchirwa maitiro
(1) Kushivirira kwakafanana pakati pekubuda kwemvura uye ndiro yekusefa kunodiwa kusapfuura 2 mm.
(2) The levelness uye kusaenzana kwesefa ndiro zvese zviri pasi pe ± 1.5 mm.Chimiro cheplate yesefa inotora yakanakisa kugadzirisa kwese.Kana iyo dhayamita ye cylinder yakakura, kana kudziviswa nezvinhu zvakasvibirira, chekufambisa, nezvimwe, maviri-lobed splicing anogona kushandiswa zvakare.
(3) Kurapa kunonzwisisika kwezvikamu zvakabatana zveplate resefa uye cylinder inonyanya kukosha kune air backwashing link.
① Kuti ubvise iyo radial gap pakati pesefa ndiro uye silinda yakakonzerwa nekukanganisa mukugadziriswa kweplate resefa uye kutenderedzwa kwecylinder, iyo arc mhete ndiro inowanzo sungwa chikamu nechikamu.Zvikamu zvinosangana zvinofanira kunge zvakanyatsobatanidzwa.
②Nzira yekurapa yeradial clearance yepakati pombi uye sefa ndiro yakafanana nepamusoro.
Matauriro: Aya matanho ari pamusoro anovimbisa kuti kusefa uye kugezeswa kumashure kunogona kutaurirwa chete kuburikidza nemukaha uri pakati pesefa cap kana pombi yekuburitsa.Panguva imwecheteyo, kufanana kwekugovera kwemashure ekudzokera shure uye kusefa nzira kunovimbiswa zvakare.
(4) Iyo radial kukanganisa kweiyo kuburikidza nemakomba akagadzirwa pandiro yekusefa ndeye ± 1.5 mm.Kuwedzera kwehukuru hwekukodzera pakati pegwara tsvimbo yesefa kapu uye kuburikidza negomba resefa ndiro haikodzeri kuisirwa kana kugadzirisa kwesefa cap.Kugadzira kuburikidza nemaburi kunofanirwa kuitwa nemakanika.
(5) Zvinhu zvesefa cap, nylon ndiyo yakanyanya kunaka, inoteverwa neABS.Nekuda kweiyo sefa zvinhu yakawedzerwa muchikamu chepamusoro, iyo extrusion mutoro pane sefa kapu yakakura zvakanyanya, uye simba rinodiwa kuti rive rakakwirira kudzivirira deformation.Iyo yekubata kumeso (yepamusoro nepasi pepamusoro) yesefa kavha uye ndiro yekusefa ichapihwa elastic rabha pads.
Nguva yekutumira: Jun-20-2022