Heavy calcium carbonate ni poda ya kalsiamu kabonati inayozalishwa kwa njia ya kusagwa kwa mitambo kwa kutumia kalisi, chaki, marumaru na madini mengine kama malighafi.Ina sifa ya chanzo pana cha malighafi, weupe wa juu, thamani ya chini ya kunyonya mafuta, utumiaji mzuri na bei ya chini.Kwa sasa ndiyo bidhaa inayotumika zaidi ya unga wa madini ya isokaboni isiyo ya metali yenye matumizi makubwa zaidi.

Kwa sasa, teknolojia nzuri ya usindikaji wa kaboni nzito ya kalsiamu inalenga zaidi kusaga na kurekebisha uso ili kusindika bidhaa zinazokidhi mahitaji ya laini ya nyanja tofauti za matumizi, ikiwa ni pamoja na unga laini, unga wa ultrafine, uso uliobadilishwa (hai) na tope la kutengeneza karatasi ni pamoja na makundi kadhaa. na zaidi ya aina kumi za bidhaa maalum nzito za kalsiamu kabonati zenye laini tofauti na urekebishaji wa uso na kuwezesha.Kwa hiyo ni vifaa gani vinavyotengeneza poda ya kalsiamu carbonate?Mitambo ya HCM ni mtengenezaji anayejulikana wa mashine na vifaa vya usindikaji wa poda ya kalsiamu katika sekta hiyo.Leo tutakuletea mashine na vifaa vya kusindika poda ya kalsiamu kwa undani.

Maelezo ya kina ya mashine na vifaa vya usindikaji wa poda ya kalsiamu:

Kalsiamu nzito ya kabonati ya kawaida yenye d97≥5μm huzalishwa hasa kwa njia kavu.Vifaa hivyo ni pamoja na kinu cha Raymond kilichoboreshwa (kinu cha kuning'inia au kinu cha pendulum), kinu cha roller (ikiwa ni pamoja na kinu cha shinikizo / kinu cha wima, kinu cha kupigia, nk. ) na kinu ya mpira, nk.

Kabonati ya kalsiamu nzito isiyo na kipimo iliyo na d97≥5μm kwa ujumla hutumia mchakato wa uzalishaji kavu, na baadhi hutumia mchakato wa kusaga na kukausha.Uzalishaji wa kukausha hutumia hasa vinu vya mipira ya ngoma + viainishaji, vinu vya roller (ikiwa ni pamoja na vinu vya kuvingirisha vilivyo na uainishaji wa bendi, vinu vya wima/vipimo vya shinikizo), vinu vya kuchanganya kavu + viainishaji, n.k.

Daraja la utengenezaji wa karatasi la utepe mwepesi mzito wa kalsiamu kabonati yenye d97≤5μm, hasa d90≤2μm, kwa ujumla hutolewa kwa njia ya mvua, na kifaa kikuu ni kinu cha kuchochea na kinu cha mchanga.

Mstari wa uzalishaji wa kinu + cha uainishaji hutumiwa hasa kutoa unga mwembamba wa kalsiamu kabonati na unga wa hali ya juu wenye d97=5~43μm.Ina sifa ya uzalishaji unaoendelea wa mzunguko funge, uainishaji wa hatua nyingi, mzigo mkubwa wa mzunguko (300% ~ 500%), na uwezo mkubwa wa uzalishaji wa mashine moja.Mstari huu wa uzalishaji umetumika tangu katikati hadi mwishoni mwa miaka ya 1990 na ni mojawapo ya teknolojia kuu za uzalishaji kwa njia kubwa za uzalishaji wa kalsiamu nzito ya kalsiamu duniani leo.

Kinu cha roller cha pete ndicho kifaa kinachotumika sana cha kusaga na kusaga laini zaidi katika uwanja wa kalsiamu nzito ya kaboni nchini China katika miaka kumi iliyopita.Inajulikana na uwiano mkubwa wa kusagwa na matumizi ya chini ya nishati kwa kila kitengo cha bidhaa.Kiainishi cha faini cha ndani au cha nje kinaweza kutoa bidhaa bora zaidi zenye d97≤10μm.Ubora wa bidhaa unaweza kubadilishwa kati ya d97=5~40μm;safu ya ukubwa wa chembe ya bidhaa inayofaa zaidi ni d97=10~30μm.

Kinu cha roller (wima roller mill/roller mill) ni mojawapo ya vifaa vikubwa vya kusaga vizuri na kusaga laini ya kalsiamu nzito ya kaboni.Inajulikana na uwiano mkubwa wa kusagwa.Safu ya ukubwa wa chembe ya bidhaa inayofaa zaidi ni d97=15~45μm.Baada ya kiainishaji cha faini cha nje kusakinishwa, kinaweza kutoa bidhaa bora zaidi zenye d97≤10μm.Bidhaa hiyo ina sura nzuri ya chembe na thamani ya chini ya kunyonya mafuta, ambayo yanafaa hasa kwa uzalishaji.Nyenzo za mchanganyiko wa polyester zisizojaa (mawe bandia) hutumia vichungi vizito vya kalsiamu kabonati, na huwa na matumizi ya chini ya nishati na kuvaa kwa kila kitengo cha bidhaa.

Teknolojia yenye unyevunyevu ya kusaga yenye ubora wa juu zaidi hutumika kuzalisha bidhaa za kiwango cha upakaji karatasi (slurry) zenye d90≤2μm na d97≤2μm, na ultrafine kabonati nzito ya kalsiamu yenye d60≤2μm (hutumika kama kichungio cha plastiki baada ya kukaushwa).Kwa ujumla, hatua moja au mbili za mchakato wa kusaga laini zaidi hutumiwa.Hasa linajumuisha grinder ya kuchanganya mvua au kinu cha mchanga na mizinga ya kuhifadhi sambamba na pampu.

The production capacity of ordinary heavy calcium in the domestic market has become saturated, and the product price is low, and the technological content and added value are not high. For ultra-fine and active heavy calcium, domestic production capacity cannot meet the demand and still has great market potential. Overall, the main development trends of heavy calcium carbonate industry technology are large-scale, functional and intelligent. This is an inevitable requirement for the intensification, stabilization, structural optimization or specialization of heavy calcium carbonate production, as well as improving production efficiency, reducing energy consumption, wear and tear and reducing production costs. It is also an inevitable requirement for the development of production technology due to the significant increase in market demand and saving the amount of resin in polymer-based composite materials.It is necessary for domestic heavy calcium carbonate companies to learn from the successful experiences of world-famous calcium carbonate companies such as Omya and Imerys, and adopt high-efficiency, energy-saving large-scale equipment and advanced production technology to promote the in-depth development of my country’s heavy calcium carbonate industry in terms of scale and product refinement.As an equipment supplier recognized by Omya, HCM has provided calcium powder processing machinery and equipment to many Omya factories around the world, which are highly praised and favored by customers. If you have purchasing needs for calcium powder processing machinery and equipment, please contact us for details of the equipment. Email:hcmkt@hcmilling.com