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1. Chigadzirwa Overview
Polyacrylamide pfupiso (amide)
polyacrylamide (PAM)
Zvimedu zvichena zvakachena
Polyacrylamide, inonzi PAM, yakakamurwa kuita anionic (APAM), cationic (CPAM), uye nonionic (NPAM). Iyo mutsara wepolymer uye imwe yeanonyanya kushandiswa marudzi emvura-soluble polymer makomisheni. Polyacrylamide uye zvinobva kwayo zvinogona kushandiswa seanoshanda flocculants, thickeners, bepa enhancers uye mvura inodhonza inoderedza vamiririri, nezvimwewo, uye inoshandiswa zvakanyanya mukurapa kwemvura, kugadzira mapepa, peturu, marasha, migodhi nesimbi, geology, machira, kuvaka, nezvimwe. industry sector.

3. Kungwarira pakusarudza polyacrylamide zvigadzirwa:
① Kusarudzwa kweflocculant kunotora kuzere kufunga kwemaitiro uye zvinodiwa zvemidziyo.

②Simba re floc rinogona kuwedzerwa nekuwedzera molecular weight ye flocculant.

③Kukosha kwekuchaja kweiyo flocculant kunoongororwa kuburikidza nemiedzo.

④Kushanduka kwemamiriro ekunze (tembiricha) kunokanganisa kusarudzwa kweflocculant.

⑤Sarudza huremu hwema molecular ye flocculant maererano nehukuru hwe floc hunodiwa nemaitiro ekurapa.

⑥Sanganisa iyo flocculant uye sludge zvakakwana usati warapwa.
4. Maitiro ekuita:

1. Iyo polyacrylamide morekuru ine majini akanaka, simba re flocculation rakasimba, dosi yakaderera, uye maitiro ekurapa ari pachena.

2. Iine solubility yakanaka uye yakakwirira basa. Iyo alum maruva akaumbwa ne condensation mumvura yemvura yakakura uye inogara nekukurumidza. Iyo ine simba rekuchenesa 2-3 nguva yakakura kupfuura mamwe mapolymer anonyungudika nemvura.

3. Kuchinja kwakasimba uye kushoma kunokanganisa pH kukosha uye tembiricha yemuviri wemvura. Mushure mekucheneswa kwemvura yakasvibirira, inosvika pachiyero chemvura yenyika. Mushure mekurapa, zvimedu zvakamiswa mumvura zvinozadzisa chinangwa chekuyerera uye kujekeswa, izvo zvinoita kuti ion kuchinjana kurapwa uye kugadzirira kwepamusoro-kuchena mvura.

4. Haina kukuvadza uye iri nyore kushanda, iyo inogona kuvandudza simba rekushanda uye mamiriro ekushanda ekuita dosing.

5. Kushandiswa kwechikamu chepolyacrylamide

Iyo polyacrylamide molecule ine yakanaka gene (-CONH2), iyo inogona adsorb uye bhiriji yakaturikwa zvimedu zvakaparadzirwa mumhinduro. Iyo ine yakasimba flocculation effect. Inogona kukurumidzira kugadzirisa kwezvikamu mukumiswa, uye ine kukurumidza kuri pachena kwemhinduro. Inogona kujekesa uye kukurudzira kusefa, saka inoshandiswa zvakanyanya mukurapa kwemvura, simba remagetsi, migodhi, kugadzirira marasha, zvigadzirwa zveasbestos, petrochemical industry, papermaking, textile, kunatsa shuga, mushonga, kuchengetedzwa kwezvakatipoteredza, nezvimwe.
1. Se flocculant, inonyanya kushandiswa mumaindasitiri akasimba-mvura yekuparadzanisa maitiro, kusanganisira sedimentation, kujekesa, kuisa pfungwa uye sludge dehydration. Maindasitiri makuru anoshandiswa ndeaya: kugadzirwa kwetsvina yemumaguta, indasitiri yemapepa, indasitiri yekugadzira chikafu, petrochemical indasitiri, Kugadziriswa kweWastewater muindasitiri yesimbi, indasitiri yekugadzira zvicherwa, indasitiri yekudhaya, indasitiri yeshuga uye maindasitiri akasiyana. Inoshandiswa kugadzira sludge sedimentation uye sludge dehydration mukurapwa kwetsvina yemumaguta uye nyama, huku, uye chikafu chekugadzira tsvina. Mapoka anochajiswa zvakanaka ayo ane magetsi anokonzeresa izvo zvisina kunaka zvinochajiswa organic colloids mumatope uye Iyo bridging uye kubatana kwekushanda kwemapolymers inosimudzira iyo colloidal particles kuti ibatane kuita flocs huru uye iparadzanise kubva pakumiswa kwavo. Mhedzisiro yacho iri pachena uye dosage idiki.
2. Muindasitiri yemapepa, inogona kushandiswa sepepa yakaoma simba mumiriri, rubatsiro rwekuchengetedza uye rubatsiro rwesefa, iyo inogona kuvandudza kunaka kwepepa, kuchengetedza mari uye kuwedzera huwandu hwekugadzira mapepa emagetsi. Inogona kuumba zvakananga mabhiriji emagetsi ane inorganic salt ions, fiber uye mamwe organic mapolymers kuti awedzere kusimba kwebepa, kuderedza kurasikirwa kwefiber kana mafirita, kukurumidza kusefa kwemvura, uye kutamba basa rekusimbisa, kuchengetedza uye kusefa. Inogona zvakare kushandiswa kuWhite mvura kurapwa, panguva imwe chete, inogona kuve yakajeka flocculation mhedzisiro panguva yekuita deinking.
3. Fiber slurry (asbestos-cement products) inogona kuvandudza mvura yekugadzirwa kweasbestos-simende zvigadzirwa uye kuwedzera simba reasbestos board blanks; mumabhodhi ekudzivirira, inogona kuvandudza kugona kwekusunga kwezvinowedzera uye fiber.
4. Inogona kushandiswa seanojekesa yemvura yakasviba yemugodhi uye marasha ekugeza tsvina mumigodhi uye marasha ekugadzirira maindasitiri.
5. Inogona kushandiswa kurapa dhayi tsvina, dehwe tsvina, uye mafuta tsvina tsvina kubvisa turbidity uye decolorize kuti vasangane discharge mitemo.
6. Mu phosphoric acid kucheneswa, inobatsira kuparadzanisa gypsum mune wet phosphoric acid process.
7. Inoshandiswa semvura yekurapa flocculant mumiti yemvura ine mvura yerwizi.
6. Nzira dzekushandisa uye dziviriro:
1. Shandisa mvura isina kwayakarerekera, isina munyu kuti ugadzirire mvura ine mvura ine 0.2%.
2. Sezvo chigadzirwa ichi chakakodzerwa nehuwandu hwehuwandu hwepH hutsika hwemvura, huwandu hwehuwandu huri 0.1-10ppm (0.1-10mg / L).
3. Yakanyungudika zvizere. Pakunyunguduka, kurunga mvura zvakanaka wobva wawedzera hupfu hwemushonga zvishoma nezvishoma uye zvakaenzana kudzivirira kuvharika kwepombi nemapombi kunokonzerwa nehove huru uye maziso ehove.
4. Kusanganiswa kwekukurumidza kunowanzoita 200 rpm uye nguva haisi pasi pemaminitsi makumi matanhatu. Kuwedzera zvakakodzera tembiricha yemvura ne20-30 madhigirii Celsius kunogona kukurumidza kupera. Iyo yakanyanya tembiricha yemushonga wemvura inofanira kunge iri pasi pe60 degrees.
5. Sarudza yakakwana dosage. Sarudza iyo yakakwana dosage kuburikidza nekuyedza usati washandisa. Nekuti iyo dosage yakadzikira, haishande, uye kana iyo dosage yakawandisa, ichava nemhedzisiro inopesana. Kana ichipfuura kumwe kusungirirwa, PAM haingotenderere chete, asi inoparadzirwa uye inoshandiswa zvakatsiga.
6. Ichi chigadzirwa chinofanira kuchengetwa munzvimbo inotonhorera, yakaoma kudzivirira unyoro.
7. Nzvimbo yebasa inofanira kugezwa nemvura nguva nenguva kuti igare yakachena. Nekuda kwekupenya kwayo kwepamusoro, PAM yakapararira pasi pevhu inotsvedzerera kana yaiswa mumvura, ichidzivirira vanoshanda kuti vatsvedze uye kukonzera tsaona dzekuchengetedza.
8. Ichi chigadzirwa chinoputirwa nemabhegi epurasitiki uye chikamu chekunze chakagadzirwa nemasaga epurasitiki akarukwa, bhegi rimwe nerimwe 25Kg.
7. Zvinhu zvemuviri uye maitiro ekushandisa
1. Zvinhu zvemuviri: Molecular formula (CH2CHCONH2)r
PAM iine mutsara polymer. Inonyungudika zviri nyore mumvura uye inenge isinganyungudike mubenzene, ethylbenzene, esters, acetone uye mamwe mageneral organic solvents. Mushonga wayo une aqueous imvura inoonekera inoonekera uye isiri-ine njodzi chigadzirwa. Isiri-corrosive, PAM yakasimba ndeye hygroscopic, uye hygroscopicity inowedzera nekuwedzera ionicity. PAM ine kugadzikana kwakanaka kwekushisa; ine kugadzikana kwakanaka kana ichipisa kusvika 100 ° C, asi inoora nyore kuburitsa gasi renitrogen kana ichipisa kusvika 150 ° C kana pamusoro. Iyo inopinda imidization uye haina kunyungudika mumvura. Density (g) ml 23°C 1.302. Tembiricha yekuchinja kwegirazi i153°C. PAM inoratidza isiri-Newtonian fluidity pasi pekunetseka.
2. Maitiro ekushandisa
Flocculation: PAM inogona kumisa zvinhu zvakamiswa kuburikidza nemagetsi, bhiriji adsorption, uye kuita flocculation.
Adhesion: Inogona kuita seanonamatira kuburikidza nemakanika, emuviri uye makemikari mhedzisiro.
Kudzikisira kudzikisira: PAM inogona kunyatso kudzikisa kushomeka kwemvura. Kuwedzera huwandu hushoma hwePAM kumvura kunogona kuderedza kupesana kwe50-80%.
Kukora: PAM ine thickening mhedzisiro pasi pese kwazvakarerekera uye acidic mamiriro. Kana iyo pH kukosha iri pamusoro pe10 ° C, PAM iri nyore hydrolyzed uye ine semi-reticular chimiro, uye kukora kuchave kuri pachena.
8. Synthesis uye maitiro e polyacrylamide PAM
9. Kurongedza uye kuchengetedza:
Nokuda kwechigadzirwa ichi, iva nechokwadi chekudzivirira kubva kune unyoro, mvura, uye zuva.
Nguva yekuchengeta: 2 makore, 25kg bhegi bhegi (yepurasitiki bhegi rakaputirwa nepurasitiki kraft bepa bhegi kunze).