Heavy calcium carbonate imhando ye calcium carbonate powder yakagadzirwa nenzira yekupwanya michina uchishandisa calcite, choko, marble nedzimwe ores sezvinhu zvakagadziriswa. Ine hunhu hwezvinhu zvakagadziriswa zvakasiyana-siyana, kuchena kwakanyanya, kukosha kwakaderera kwekunyudzwa kwemafuta, kushanda zvakanaka uye mutengo wakaderera. Parizvino ndiyo inonyanya kushandiswa inorganic non-metallic mineral powder ine kushandiswa kwakanyanya.

Parizvino, tekinoroji yekugadzirisa zvakanaka ye heavy calcium carbonate inonyanya kutarisa pakukuya nekugadzirisa pamusoro pezvinhu zvinosangana nezvinodiwa zvekupfava munzvimbo dzakasiyana dzekushandisa, kusanganisira fine powder, ultrafine powder, surface modified (active) powder uye papermaking slurry inosanganisira mhando dzakasiyana uye marudzi anopfuura gumi ezvigadzirwa zve calcium carbonate zvine fineness yakasiyana uye surface modification uye activation. Saka ndezvipi zvishandiso zvinogadzira calcium carbonate powder?Michina yeHCM ikambani inozivikanwa zvikuru yekugadzira michina yekugadzira upfu hwecalcium muindasitiri iyi. Nhasi tichakuzivisai zvakadzama nezvemichina yekugadzira upfu hwecalcium.

Tsananguro yakadzama yemichina yekugadzira upfu hwecalcium nemidziyo:

Karubhaidhi yakajairika ine d97≥5μm inonyanya kugadzirwa nenzira yakaoma. Midziyo iyi inosanganisira Raymond mill yakagadziridzwa (hanging roller mill kana pendulum mill), roller mill (kusanganisira pressure roller mill/vertical mill, ring roller mill, nezvimwewo) uye ball mill, nezvimwewo.

Karubhaidhi inorema zvikuru ine d97≥5μm inowanzoshandisa nzira yekugadzira yakaoma, uye dzimwe dzinoshandisa nzira yekukuya yakanyorova + yekuomesa. Kugadzira yakaoma kunonyanya kushandisa madhiramu ebhora + makirasi, maroller mills (kusanganisira ma ring roller mills ane in-band classification, vertical mills/pressure roller mills), madhiramu ekusanganisa + makirasi, nezvimwewo.

Kugadzira mapepa emhando yepamusoro-soro calcium carbonate slurry ine d97≤5μm, kunyanya d90≤2μm, inowanzogadzirwa nenzira yakanyorova, uye michina mikuru imuchina wekusanganisa nejecha.

Mutsetse wekugadzira bhora chigayo + classifier unonyanya kushandiswa kugadzira hupfu hwakakora hwecalcium carbonate nehupfu hwakakora hune d97=5~43μm. Unoratidzwa nekugadzirwa kwesekitori yakavharwa nguva dzose, kupatsanurwa kwezvikamu zvakawanda, mutoro wekufamba netsoka wakawanda (300%~500%), uye kugona kukuru kwekugadzira muchina mumwe chete. Mutsetse uyu wekugadzira wanga uchishandiswa kubva pakati kusvika pakupera kwema1990 uye ndeimwe yetekinoroji huru yekugadzira mitsetse mikuru yekugadzirwa kwecalcium carbonate yakawanda pasi rose nhasi.

Ring roller mill ndiyo michina yekukuya mitsetse mitsetse uye yekukuya mitsetse mitsetse inonyanya kushandiswa mumunda wecalcium carbonate yakawanda muChina mumakore gumi apfuura. Inoratidzwa nekupwanya kukuru uye kushandiswa kwesimba shoma pachikamu chimwe nechimwe. Muchina wemukati kana wekunze unogona kugadzira zvigadzirwa zvakapfava zvikuru zvine d97≤10μm. Kupfava kwechigadzirwa kunogona kugadziriswa pakati pe d97=5~40μm; huwandu hwakakodzera hwezvimedu zvechigadzirwa ndi d97=10~30μm.

Chigayo chinotenderera (vertical roller mill/roller mill) chimwe chezvishandiso zvikuru zvekukuya zvakanaka uye kukuya zvakanaka kwecalcium carbonate inorema. Chinoratidzwa nekupwanya kukuru. Hukuru hwezvimedu zvechigadzirwa hwakakodzera id97=15~45μm. Mushure mekunge chigadziriso chekunze chaiswa, chinogona kugadzira zvigadzirwa zvakanaka kwazvo zvine d97≤10μm. Chigadzirwa chacho chine chimiro chakanaka chezvimedu uye kukosha kwakaderera kwekunyudzwa kwemafuta, izvo zvinonyanya kukodzera kugadzirwa. Zvinhu zvakasanganiswa zvepolyester zvisina kuzara (dombo rekugadzira) zvinoshandisa calcium carbonate fillers inorema, uye zvine simba shoma uye kusakara pachinhu chimwe nechimwe.

Tekinoroji yekukuya yakanyorova zvakanyanya inoshandiswa kugadzira zvigadzirwa zvemhando yepamusoro zvekugadzira mapepa (slurry) zvine d90≤2μm uye d97≤2μm, uye ultrafine heavy calcium carbonate ine d60≤2μm (inoshandiswa sepurasitiki yekuzadza mushure mekuomeswa). Kazhinji, nhanho imwe kana mbiri dzekugadzira kwakanyorova zvakanyanya dzinoshandiswa. Inonyanya kuve nemuchina wekukuya wakanyorova kana muchina wejecha uye matangi ekuchengetera anoenderana nemapombi.

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