CMC yana amfani da shi a Masana'antar yumbura

Sodium carboxymethyl cellulose, Turanci gajarta CMC, yumbu masana'antu da aka fi sani da "sodium CMC“, wani nau'in sinadari ne na anionic, an yi shi da cellulose na halitta azaman albarkatun ƙasa, ta hanyar gyare-gyaren sinadarai da fari ko launin rawaya mai haske. CMC yana da kyawawa mai kyau kuma ana iya narkar da shi cikin gaskiya da bayani iri ɗaya a cikin ruwan sanyi da ruwan zafi.

1. Takaitaccen gabatarwar CMCamfani a cikin yumbu

1.1 aikace-aikacen CMC a cikin yumbu

1.1.1. Ƙa'idar aikace-aikacen

CMC yana da tsari na musamman na polymer madaidaiciya. Lokacin da aka ƙara CMC a cikin ruwa, rukuninsa na hydrophilic (-Coona) yana haɗuwa da ruwa don samar da wani nau'i mai narkewa, wanda a hankali ya watsar da kwayoyin CMC a cikin ruwa. Tsarin hanyar sadarwa tsakanin polymers CMC an kafa shi ta hanyar haɗin hydrogen da karfi van der Waals, don haka yana nuna haɗin kai. CMC na musamman na jiki ana iya amfani dashi azaman kayan haɓakawa, filastikizer da ƙarfafa billet a masana'antar yumbu. Ƙara daidai adadin CMC a cikin billet na iya ƙara ƙarfin haɗin gwiwa na billet, sanya billet ɗin cikin sauƙi don ƙirƙirar, ƙara ƙarfin sassauƙa da sau 2 ~ 3, da haɓaka kwanciyar hankali na billet, don haɓaka ƙimar ƙimar. yumbu, rage farashin sarrafawa daga baya. Haka kuma, saboda kara CMC, ana iya inganta saurin sarrafa koren billet, da rage yawan amfani da makamashi, da kuma fitar da ruwan da ke cikin billet din daidai gwargwado don hana bushewa da tsagewa, musamman ma girman girmansa. na billet ɗin bene da gogaggen billet ɗin bulo, tasirin ya fi bayyane. Idan aka kwatanta da sauran wakilai masu ƙarfafa jiki, takamaiman CMC na jiki yana da halaye masu zuwa:

(1) ƙarancin sashi: sashi gabaɗaya ƙasa da 0.1%, wanda shine 1/5 ~ 1/3 na sauran wakili na ƙarfafa jiki, yayin da ƙarfin lanƙwasawa na jikin kore a bayyane yake kuma ana iya rage farashin.

(2) asarar ƙonawa mai kyau: bayan ƙonewa kusan babu toka, babu saura, ba ya shafar launin kore.

(3) tare da kyakkyawan dakatarwa: don hana ƙarancin albarkatun ƙasa da hazo, ta yadda slurry ya watse.

(4) Juriya: a cikin aikin niƙa ƙwallon, sarkar kwayoyin ba ta da lalacewa.

1.1.2. Hanyar ƙari

Babban adadin CMC a cikin billet shine 0.03 ~ 0.3%, wanda za'a iya daidaita shi bisa ga ainihin bukatun. Ga slurry da yawa matalauta albarkatun kasa a cikin dabara, CMC za a iya kara wa ball niƙa da ƙasa tare da laka, kula da uniform watsawa, don haka kamar yadda ba ya zama da wuya a narke bayan agglomeration, ko CMC iya. a narkar da shi da ruwa a 1:30 daban sannan a saka shi a cikin injin ball don hadawa 1 ~ 5 hours kafin a nika.

1.2. Aikace-aikacen CMC a cikin slurry glaze

1.2.1 Ka'idar aikace-aikacen

Glaze manna na musamman TYPE CMC ne mai kyau yi stabilizer da ɗaure, amfani da yumbu tayal kasa glaze da surface glaze, na iya ƙara bonding karfi na glaze slurry da jiki, saboda glaze slurry ne mai sauki ga hazo da matalauta kwanciyar hankali, da kuma CMC da kowane irin. glaze karfinsu yana da kyau, yana da kyau kwarai watsawa da m colloid, sabõda haka, glaze jiki ne a cikin wani sosai barga watsawa jihar. Bayan ƙara CMC, za a iya inganta yanayin zafi na glaze, za a iya hana ruwa daga yaduwa daga glaze zuwa jiki, za a iya ƙara santsi na glaze, fashewa da fashewar abin da ke haifar da raguwar ƙarfin jiki bayan raguwar ƙarfin jiki. Za a iya kauce wa aikace-aikacen glaze, kuma za a iya rage abin da ya faru na glaze bayan yin burodi.

1.2.2. Hanyar ƙarawa

Adadin CMC da aka ƙara zuwa glaze na ƙasa da glaze na ƙasa ya fito daga 0.08 zuwa 0.30%. Ana iya daidaita shi bisa ga ainihin buƙatu. Na farko, an shirya CMC cikin 3% na ruwa mai ruwa. Idan ana buƙatar adana shi na kwanaki da yawa, ya kamata a sanya maganin a cikin akwati marar iska tare da abubuwan da suka dace kuma a ajiye shi a cikin ƙananan zafin jiki. Sa'an nan kuma, an haxa maganin daidai da glaze.

1.3 aikace-aikacen CMC a cikin bugu glaze

1.3.1, bugu glaze na musamman CMC yana da kyau thickening dukiya da tarwatsawa da kwanciyar hankali, da musamman CMC zuwa dauko sabon fasaha, mai kyau solubility, high nuna gaskiya, kusan babu insoluble, amma kuma yana da m karfi thinning da lubrication, ƙwarai inganta bugu glaze bugu. daidaitawa, rage allon allo, abin da ke toshe allo, rage lokutan cibiyar sadarwa, lokacin buga aiki mai santsi, Bayyanar tsari, daidaiton launi mai kyau.

1.3.2 Babban adadin ƙara glaze bugu shine 1.5-3%. Ana iya jika CMC da ethylene glycol sannan a zuba shi da ruwa domin ya zama mai narkewa, ko kuma 1-5% sodium tripolyphosphate da kayan kala za a iya bushe su hade tare, sannan a narkar da shi da ruwa, ta yadda za a iya narkar da kayan daban-daban gaba daya.

1.4. Aikace-aikacen CMC a cikin infiltration glaze

1.4.1 Ka'idar aikace-aikacen

Shigarwa glaze ya ƙunshi mai yawa mai narkewa gishiri, acid, da kuma wasu m shigar azzakari cikin farji glaze na musamman CMC yana da m acid gishiri juriya kwanciyar hankali, sa shigar azzakari cikin farji glaze a cikin aiwatar da amfani da jeri kiyaye barga danko, hana saboda canje-canje na danko, launi da kuma shigar azzakari cikin farji glaze na musamman CMC ruwa mai narkewa, net permeability da ruwa riƙewa yana da kyau sosai, don kula da kwanciyar hankali na mai narkewa gishiri glaze yana da yawa taimako.

1.4.2. Hanyar ƙari

Narkar da CMC tare da ethylene glycol, wasu ruwa da kuma hadadden wakili, sa'an nan kuma Mix da kyau tare da narkar da launi bayani.

2.CMC ya kamata a kula da shi wajen samar da yumbu

2.1 Daban-daban na CMC suna taka rawa daban-daban wajen samar da yumbu. Zaɓin da ya dace zai iya cimma manufar tattalin arziki da inganci.

2.2. A cikin glaze da bugu na glaze, ba lallai ba ne don ɗaukar samfuran CMC tare da ƙarancin tsabta, musamman ma a cikin glaze na bugu, babban CMC mai tsabta tare da tsafta mai kyau, juriya mai kyau da gishiri da kuma nuna gaskiya dole ne a zaɓi don hana ripples da pinholes akan kyalli. A lokaci guda, kuma zai iya hana amfani da net ɗin toshe, rashin daidaituwa da launi da sauran abubuwan mamaki.

2.3 Idan yawan zafin jiki yana da girma ko kuma ana buƙatar sanya glaze na dogon lokaci, ya kamata a ƙara abubuwan kiyayewa.

3. Binciken matsalolin gama gari na CMC a cikin samar da yumbu

3.1. Rashin ruwa na laka ba shi da kyau kuma yana da wuya a saka manne.

Saboda dankowar CMC da kanta, dankon laka ya yi yawa, wanda ke haifar da wahalar bugun jini. Maganin shine don daidaita adadin da nau'in coagulant, bada shawarar dabarar decoagulant mai zuwa1) sodium tripolyphosphate 0.3%; (2) sodium tripolyphosphate 0.1%+ sodium silicate 0.3%; (3) Sodium humate 0.2%+ sodium tripolyphosphate 0.1%

3.2. Glaze manna da bugu mai sirara ne.

Dalilan zabar glaze paste da bugu na man sune kamar haka1) glaze manna ko bugu mai yana lalacewa ta hanyar ƙananan ƙwayoyin cuta, ta yadda CMC ya kasa. Maganin shine a wanke kwandon man glaze ko bugu da kyau sosai, ko kuma a saka abubuwan da ake kiyayewa kamar su formaldehyde da phenol. (2) A ƙarƙashin ci gaba da motsawa na karfi mai ƙarfi, danko yana raguwa. Ana bada shawara don daidaita maganin ruwa na CMC.

3.3. Manna raga yayin amfani da glaze ɗin bugawa.

Maganin shine a daidaita adadin CMC, don dankon glaze na bugawa ya zama matsakaici, idan ya cancanta, ƙara ƙaramin adadin ruwa don motsawa daidai.

3.4, toshe hanyar sadarwa, goge adadin lokuta.

Mafita ita ce inganta bayyana gaskiya da solubility na CMC. Buga shirye-shiryen man fetur bayan kammala 120 mesh sieve, bugu kuma yana buƙatar wucewa 100 ~ 120 raga; Daidaita bugu glaze danko.

3.5, riƙewar ruwa ba shi da kyau, bayan buguwar gari na fili, ya shafi bugu na gaba.

Maganin shine ƙara yawan adadin glycerin a cikin aikin bugu na shirye-shiryen mai; Canja zuwa babban matsayi na maye (maye gurbin daidaitattun daidaito), ƙananan danko CMC don shirya mai bugu.