Calcium carbonate dị arọ bụ ihe e ji eme ntụ ntụ calcium carbonate nke a na-eji usoro igwe eme ihe site na iji calcite, chalk, marble na ihe ndị ọzọ dị ka ihe eji eme ihe. O nwere njirimara nke ọtụtụ ihe eji eme ihe, ọcha dị elu, uru mmịpụta mmanụ dị ala, ezigbo ojiji na ọnụ ala dị ala. Ugbu a ọ bụ ngwaahịa ntụ ntụ mineral inorganic na-abụghị metal nke a na-ejikarị eme ihe nke ukwuu, nke a na-ejikarị eme ihe kachasị ukwuu.

Ugbu a, teknụzụ nhazi dị mma nke calcium carbonate dị arọ na-elekwasị anya na egweri na mgbanwe elu iji hazie ngwaahịa ndị na-emezu ihe achọrọ maka ịdị mma nke ubi ngwa dị iche iche, gụnyere ntụ ntụ dị mma, ntụ ntụ ultrafine, ntụ ntụ agbanwere (na-arụ ọrụ) na slurry ime akwụkwọ gụnyere ọtụtụ ụdị na ihe karịrị ụdị iri nke ngwaahịa calcium carbonate pụrụ iche nwere ịdị mma na mgbanwe elu na mmalite dị iche iche. Yabụ kedu akụrụngwa na-ahazi ntụ ntụ calcium carbonate?Igwe HCM bụ onye a ma ama na-emepụta igwe na akụrụngwa nhazi calcium powder n'ụlọ ọrụ a. Taa, anyị ga-akọwara gị igwe nhazi calcium powder na akụrụngwa zuru ezu.

Nkọwa zuru ezu nke igwe na akụrụngwa nhazi ntụ ntụ calcium:

A na-emepụta calcium carbonate nkịtị dị arọ nke nwere d97≥5μm site na usoro akọrọ. Ngwaọrụ ndị a gụnyere Raymond mill emelitere (nkwado roller mill ma ọ bụ pendulum mill), roller mill (gụnyere roller mill/vetikal mill, ring roller mill, wdg) na ball mill, wdg.

Kalịsịọm dị arọ nke ukwuu nke nwere d97≥5μm na-anabata usoro mmepụta akọrọ, ụfọdụ na-ejikwa usoro egweri mmiri + ihicha. Mmepụta akọrọ na-ejikarị igwe igwe drum + classifiers, igwe igwe igwe (gụnyere igwe igwe mgbanaka nwere nhazi in-band, igwe igwe kwụ ọtọ/igwe igwe igwe nrụgide), igwe igwe ngwakọta akọrọ + classifiers, wdg.

A na-emepụta ihe mkpuchi akwụkwọ nke nwere oke calcium carbonate dị arọ nke nwere d97≤5μm, ọkachasị d90≤2μm, site na usoro mmiri mmiri, ihe kachasị mkpa bụ igwe na-agwakọta ihe na igwe na-akpụ ájá.

A na-ejikarị usoro mmepụta ígwè bọọlụ + classifier emepụta ntụ ntụ calcium carbonate dị arọ na ntụ ntụ ultrafine nwere d97=5~43μm. A na-eji ya eme ihe site na mmepụta sekit mechiri emechi na-aga n'ihu, nhazi ọtụtụ ọkwa, ibu okirikiri buru ibu (300% ~ 500%), na nnukwu ikike mmepụta otu igwe. A na-eji usoro mmepụta a kemgbe etiti ruo na ngwụcha afọ 1990 ma ọ bụ otu n'ime teknụzụ mmepụta bụ isi maka usoro mmepụta calcium carbonate dị oke mma n'ụwa taa.

Igwe igwe eji agba ígwè bụ ngwa igwe eji egweri ihe na igwe eji egweri ihe nke ukwuu n'ọtụtụ ebe n'ọhịa nke calcium carbonate dị arọ na China n'ime afọ iri gara aga. A na-eji oke igwe eji egweri ihe na obere oriri ike kwa otu ngwaahịa mara ya. Ihe nhazi dị mma dị n'ime ma ọ bụ nke mpụga nwere ike imepụta ngwaahịa dị oke mma na d97≤10μm. Enwere ike ịgbanwe ịdị mma nke ngwaahịa ahụ n'etiti d97=5~40μm; oke nha ihe dị n'ime ngwaahịa kacha mma bụ d97=10~30μm.

Igwe igwe na-agbagharị agbagharị (igwe igwe na-agbagharị agbagharị/igwe igwe na-agbagharị agbagharị) bụ otu n'ime ngwa ndị bụ isi maka igwe na-agbagharị agbagharị na igwe na-agbagharị agbagharị nke calcium carbonate dị arọ. A na-eji oke igwe na-agbagharị agbagharị mara ya. Oke nha nke ngwaahịa kachasị mma bụ d97=15~45μm. Mgbe etinyere ihe nhazi dị mma n'èzí, ọ nwere ike imepụta ngwaahịa dị mma nke ukwuu nwere d97≤10μm. Ngwaahịa a nwere ọdịdị dị mma na uru mmịpụta mmanụ dị ala, nke dabara adaba karịsịa maka mmepụta. Ihe mejupụtara polyester nke na-enweghị afọ ojuju (nkume artificial) na-eji ihe na-ejupụta calcium carbonate dị arọ, ha nwekwara obere oriri ike na iyi kwa otu ngwaahịa.

A na-ejikarị teknụzụ igwe egweri ultrafine nke e ji mmiri mee emepụta ihe mkpuchi akwụkwọ (slurry) nke nwere d90≤2μm na d97≤2μm, yana ultrafine heavy calcium carbonate nke nwere d60≤2μm (a na-eji ya eme ihe dị ka ihe e ji eme plastik mgbe ọ kpọchara). N'ozuzu, a na-eji otu ma ọ bụ usoro igwe egweri ultrafine na-aga n'ihu. Ọ bụ isi ihe mejupụtara igwe egweri agwakọta mmiri ma ọ bụ igwe e ji ájá gwerie na tankị na ọkpọkọ nchekwa ndị kwekọrọ.

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