nkhani

1. Mwachidule cha mankhwala
Chidule cha Polyacrylamide (amide)
Polyacrylamide (PAM)
Choyera choyera particles
Polyacrylamide, yotchedwa PAM, imagawidwa kukhala anionic (APAM), cationic (CPAM), ndi nonionic (NPAM). Ndi polima mzere ndipo ndi imodzi mwa mitundu yomwe imagwiritsidwa ntchito kwambiri ndi ma polima osungunuka m'madzi. Polyacrylamide ndi zotumphukira zake angagwiritsidwe ntchito ngati flocculants ogwira, thickeners, enhancers pepala ndi madzi kuukoka kuchepetsa wothandizila, etc., ndipo chimagwiritsidwa ntchito madzi mankhwala, papermaking, mafuta, malasha, migodi ndi zitsulo, geology, nsalu, zomangamanga, etc. gawo la mafakitale.

3. Kusamala posankha zinthu za Polyacrylamide:
① Kusankhidwa kwa flocculant kumaganizira mozama ndondomeko ndi zofunikira za zipangizo.

②Mphamvu ya floc imatha kukulitsidwa powonjezera kulemera kwa maselo a flocculant.

③ Mtengo wa mtengo wa flocculant umawunikidwa kudzera muzoyesera.

④Kusintha kwanyengo (kutentha) kumakhudza kusankha kwa flocculant.

⑤Sankhani kulemera kwa maselo a flocculant malinga ndi kukula kwa floc komwe kumafunidwa ndi njira ya chithandizo.

⑥Sakanizani flocculant ndi sludge bwinobwino musanalandire chithandizo.
4. Makhalidwe amachitidwe:

1. Molekyulu ya polyacrylamide ili ndi majini abwino, luso lamphamvu la flocculation, mlingo wochepa, komanso zotsatira zodziwikiratu za mankhwala.

2. Ili ndi kusungunuka kwabwino komanso ntchito yayikulu. Maluwa a alum opangidwa ndi condensation m'madzi amadzi ndi aakulu ndipo amakhazikika mofulumira. Ili ndi mphamvu yoyeretsa nthawi 2-3 kuposa ma polima ena osungunuka m'madzi.

3. Kusinthasintha kwamphamvu komanso kukhudza pang'ono pH mtengo ndi kutentha kwa madzi. Pambuyo pa kuyeretsedwa kwa madzi osaphika, amafika pamtundu wadziko lonse wa madzi. Pambuyo mankhwala, ndi inaimitsidwa particles m'madzi kukwaniritsa cholinga cha flocculation ndi kumveketsa bwino, amene amathandiza kuti ion kuwombola mankhwala ndi kukonzekera madzi mkulu-chiyero.

4. Imakhala yocheperako komanso yosavuta kuyigwiritsa ntchito, yomwe imatha kupititsa patsogolo kuchuluka kwa ntchito komanso momwe magwiridwe antchito amagwirira ntchito.

5. Kugwiritsa ntchito kuchuluka kwa Polyacrylamide

Molekyu ya polyacrylamide ili ndi jini yabwino (-CONH2), yomwe imatha kutsitsa ndikuyimitsa tinthu tating'ono tomwe timamwazikana mu yankho. Ili ndi mphamvu ya flocculation. Ikhoza imathandizira kuthetsa particles mu kuyimitsidwa, ndipo ali ndi zoonekeratu mathamangitsidwe wa yankho. Ikhoza kufotokozera ndi kulimbikitsa kusefera, kotero imagwiritsidwa ntchito kwambiri pochiza madzi, mphamvu yamagetsi, migodi, kukonza malasha, zinthu za asibesitosi, mafakitale a petrochemical, kupanga mapepala, nsalu, kuyenga shuga, mankhwala, kuteteza chilengedwe, etc.
1. Monga flocculant, amagwiritsidwa ntchito makamaka m'mafakitale olimba-madzi olekanitsa amadzimadzi, kuphatikizapo sedimentation, kufotokozera, ndende ndi kutaya madzi m'thupi. Mafakitale akuluakulu omwe amagwiritsidwa ntchito ndi awa: kuyeretsa zimbudzi zam'tawuni, mafakitale a mapepala, mafakitale opangira chakudya, mafakitale a petrochemical, Madzi otayira m'mafakitale azitsulo, mafakitale opangira mchere, mafakitale opaka utoto, mafakitale a shuga ndi mafakitale osiyanasiyana. Amagwiritsidwa ntchito pochotsa zinyalala ndi kutaya madzi m'thupi pochotsa zinyalala zam'tawuni ndi nyama, nkhuku, ndi madzi otayira chakudya. The zabwino mlandu magulu lili electrically neutralize ndi zoipa mlandu organic colloids mu sludge ndi The bridging ndi mgwirizano ntchito ma polima amalimbikitsa colloidal particles kuti akaphatikiza mu lalikulu flocs ndi kupatukana awo kuyimitsidwa. Zotsatira zake ndi zoonekeratu ndipo mlingo wake ndi wochepa.
2. M'makampani opanga mapepala, angagwiritsidwe ntchito ngati mapepala owuma amphamvu, zothandizira kusunga ndi zosefera, zomwe zingathe kupititsa patsogolo mapepala, kusunga ndalama ndikuwonjezera mphamvu zopangira mapepala. Ikhoza kupanga mwachindunji milatho ya electrostatic yokhala ndi ayoni amchere amchere, ulusi ndi ma polima ena achilengedwe kuti apititse patsogolo kulimba kwa pepala, kuchepetsa kutayika kwa ulusi kapena zodzaza, kufulumizitsa kusefera kwamadzi, ndikuchita gawo la kulimbikitsa, kusunga ndi kusefera. Itha kugwiritsidwanso ntchito pochiza madzi oyera, nthawi yomweyo, imatha kukhala ndi zotsatira zodziwikiratu za flocculation panthawi ya deinking.
3. CHIKWANGWANI slurry (asibesito-simenti mankhwala) akhoza kusintha ngalande za zopangidwa asibesito-simenti mankhwala ndi kuonjezera mphamvu akusoweka bolodi asibesitosi; m'mabodi otchinjiriza, imatha kupititsa patsogolo luso lomanga la zowonjezera ndi ulusi.
4. Itha kugwiritsidwa ntchito ngati chowunikira chamadzi onyansa amigodi ndi madzi ochapira a malasha m'mafakitale opangira migodi ndi kukonza malasha.
5. Itha kugwiritsidwa ntchito popaka utoto wamadzi otayira, madzi otayira achikopa, ndi madzi otayira amafuta kuti achotse turbidity ndikuwapangitsa kuti akwaniritse miyezo yotulutsa.
6. Mu kuyeretsa asidi phosphoric, kumathandiza kulekanitsa gypsum mu chonyowa phosphoric asidi ndondomeko.
7. Ntchito ngati madzi mankhwala flocculant mu madzi zomera ndi mtsinje madzi gwero.
6. Njira zogwiritsira ntchito ndi zodzitetezera:
1. Gwiritsani ntchito madzi osalowerera, opanda mchere kuti mukonzekere njira yamadzimadzi ndi 0.2%.
2. Popeza mankhwalawa ndi oyenerera pamitundu yambiri ya pH yamadzi, mlingo waukulu ndi 0.1-10ppm (0.1-10mg / L).
3. Kusungunuka kwathunthu. Mukasungunuka, gwedezani madzi bwino ndikuwonjezera ufa wamankhwala pang'onopang'ono komanso molingana kuti mupewe kutsekeka kwa mapaipi ndi mapampu chifukwa cha flocculation yayikulu ndi maso a nsomba.
4. Liwiro losakanikirana nthawi zambiri limakhala 200 rpm ndipo nthawiyo siichepera mphindi 60. Kuchulukitsa moyenerera kutentha kwa madzi ndi 20-30 digiri Celsius kumatha kufulumizitsa kusungunuka. Kutentha kwakukulu kwa mankhwala amadzimadzi kuyenera kukhala kosakwana madigiri 60.
5. Dziwani mlingo woyenera. Dziwani mulingo woyenera kwambiri poyesera musanagwiritse ntchito. Chifukwa mlingowo ndi wochepa kwambiri, sugwira ntchito, ndipo ngati mlingo uli wochuluka, udzakhala ndi zotsatira zosiyana. Ikadutsa ndende inayake, PAM sikuti imangoyendayenda, koma imamwazika ndikugwiritsidwa ntchito mokhazikika.
6. Izi ziyenera kusungidwa pamalo ozizira, owuma kuti ateteze chinyezi.
7. Malo ogwirira ntchito akuyenera kutsukidwa ndi madzi pafupipafupi kuti akhale aukhondo. Chifukwa cha kukhuthala kwake kwakukulu, PAM yobalalika pansi pa nthaka imakhala yosalala ikakhala pamadzi, kulepheretsa oyendetsa ntchito kuti asatengeke ndikuyambitsa ngozi zachitetezo.
8. Mankhwalawa amapangidwa ndi matumba apulasitiki ndipo wosanjikiza wakunja amapangidwa ndi matumba apulasitiki opangidwa ndi laminated, thumba lililonse ndi 25Kg.
7. Katundu wakuthupi ndi mawonekedwe ogwiritsira ntchito
1. Thupi lakuthupi: Mapangidwe a maselo (CH2CHCONH2)r
PAM ndi polima mzere. Ndiwosavuta kusungunuka m'madzi ndipo pafupifupi osasungunuka mu benzene, ethylbenzene, esters, acetone ndi zosungunulira zina zonse. Yankho lake lamadzimadzi ndi pafupifupi mandala viscous madzi ndipo si mankhwala owopsa. PAM yosawononga, yolimba ndi hygroscopic, ndipo hygroscopicity imawonjezeka ndi kuwonjezeka kwa ionicity. PAM ili ndi kukhazikika kwabwino kwa kutentha; imakhazikika bwino ikatenthedwa kufika 100°C, koma imawola mosavuta kupanga mpweya wa nitrogen ikatenthedwa kufika 150°C kapena kupitirira apo. Imapita ku imidization ndipo imasungunuka m'madzi. Kachulukidwe (g) ml 23°C 1.302. Kutentha kwa galasi ndi 153 ° C. PAM imawonetsa madzi osakhala a Newtonian pansi pa kupsinjika.
2. Makhalidwe ogwiritsira ntchito
Flocculation: PAM imatha kusokoneza zinthu zomwe zayimitsidwa kudzera pamagetsi, kutsatsa kwa mlatho, ndikuchita flocculation.
Adhesion: Itha kukhala ngati zomatira kudzera muzochita zamakina, zakuthupi komanso zamankhwala.
Kuchepetsa kukana: PAM imatha kuchepetsa kukana kwamadzimadzi. Kuonjezera pang'ono PAM m'madzi kungathe kuchepetsa kusagwirizana ndi 50-80%.
Kunenepa: PAM imakhala ndi kukhuthala pansi pazandale komanso za acidic. Pamene pH mtengo uli pamwamba pa 10 ° C, PAM ndi hydrolyzed mosavuta ndipo ali ndi semi-reticular dongosolo, ndipo thickening adzakhala zoonekeratu.
8. Kaphatikizidwe ndi ndondomeko ya Polyacrylamide PAM
9. Njira zodzitetezera pakuyika ndi kusunga:
Pazinthu izi, onetsetsani kuti mukuziteteza ku chinyezi, mvula, ndi kuwala kwa dzuwa.
Nthawi yosungirako: zaka 2, 25kg pepala thumba (pulasitiki thumba alimbane ndi pulasitiki kraft pepala thumba kunja).