Chikamu cheTekinoroji Yekugadzirisa Zvicherwa (Chikamu II)

Kuwanda kwePulp: "Chinhu Chakavanzika" Chinokanganisa Kushanda Zvakanaka kweMaminerari uye Hunhu hweFroth

Mhedzisiro yehuwandu hwepulp pakudonha kwemvura inoyerera inotevera "yakachinjika muchimiro cheU" curve: kana huwandu hwacho hwakaderera, kushanda kwemineralization kunoderera; kana hwakanyanya kukwira, mabubbles anozara, furo rinonamira, uye giredhi re concentrate rinodonha.

Nzira dzekugadzirisa huwandu hwevanhu panzvimbo iyi:

• Kuwanda kwemvura inobuda kubva mugayo → wedzera mvura kuti iwedzere kuyerera
• Kuwanda kwemvura kwakaderera zvakanyanya → tarisa huwandu hwemvura inoyerera kubva mudutu, kana kuderedza kuwedzera kwemvura
• Kuchinja-chinja kwehuwandu hwevanhu vakawanda → isa system yekuona huwandu hwevanhu otomatiki uye yekuwedzera mvura

Kubatana kuripo pakati pekuwanda uye kupfava:

• Kana kupfava kwe -200 mesh kuchisvika 65%, huwandu hwakanyanya hwema "optimum density" hunosvika 28%
• Kana hutete hwe -200 mesh huchisvika 80%, huwandu hwakakodzera hunenge 25% (zvidimbu zvidiki zvinokurumidza kucheneswa, saka huwandu hunogona kuderedzwa zvishoma)
• Kana hutete hwe -200 mesh huchisvika 50%, huwandu hwakanyanya hwemamesh hunenge 32% (zvimedu zvakakora zvinoda huwandu hwakawanda kuti zvive nechokwadi chekuti zvinogona kugongana)

Nguva Yokuumbwa Kwemaminerari: Kuyerera Kwemvura Hakusi "Kuita Pakarepo"

Nguva yekuumbwa kwemineral (kureva, nguva yekugara kwepulp mu flotation cell) inokanganisa kupora, uye inonyanya kukosha kune zvicherwa zvinofamba zvishoma nezvishoma.

Nzira yekuverenga nguva yekushandiswa kwemineral:

t = V / Q

t: nguva yekucheneswa kwemineral (min)

V: vhoriyamu inoshanda yesero rinoyangarara (m³)

Mubvunzo: mwero wekuyerera kwemvura inoyerera (m³/min)

Mafungiro Asiri Akajairika: "Kutora Sechokwadi" muFlotation Circuits

Pfungwa Isina Kujeka 1: "Kana muunganidzi akawedzerwa zvakawanda, zviri nani - mwero wekuwedzera haugone kukuvadza."

Chokwadi: Muunganidzi wezvinhu zvakawanda haungogumiri pakurasa marara chete, asiwo unokonzera furo kunamira, unoderedza huwandu hwezvinhu zvakasanganiswa, uye kana zvanyanya kuipa, zvinogona kutoderedza mineral inonangwa (reverse adsorption).

Pfungwa isiriyo 2: "Kana ukawedzera furo shoma, unowana furo shoma; kana ukawedzera, unowana furo yakawanda."

Chokwadi: Kana furo ikashandiswa zvakanyanya, furo rinoita gobvu zvakanyanya uye kudzika kwemvura kunowedzera kuipa, zvichiwedzera mutoro zvakanyanya pamatanho ekuchenesa uye pakupedzisira zvichideredza giredhi rekupedzisira re concentrate.

Pfungwa isiriyo 3: "Kana pH yakakwira, pyrite inodzikira zvakanyanya."

Chokwadi: Kana pH yadarika 12, lime yakawandisa inobvisa pamusoro pemaminerari ese esulfide, uye kudzoserwa kwemhangura kunodererawo zvakanyanya. Chiyero che lime hachisi chekuti "kana yakawanda, zviri nani."

Pfungwa Isina Kujeka 4: "Kana mhepo ikawanda, kupora kuchakwira."

Chokwadi: Kufefetera kwakanyanya kunotungamira mukuumbwa kwemabubble coalescence uye kuwedzera kwe pulp turbulence, zvichiwedzera kuvharika kwezvidimbu zvidiki zvegangue, izvo zvinoderedza giredhi rekupedzisira re concentrate. Mune zvimwe zviitiko, kudzoreredza kunogona kutodzikira (sezvo furo risingagadzikane, zvichikonzera kupatsanuka kwemamineral).

Pfungwa Isina Kujeka 5: "Kana nzvimbo dzakawanda dzekuchenesa dzichinyanya kunaka; uye kana nguva yekucheneswa kwezvicherwa ikareba, ndipo panonyanya kuchengetedzeka."

Chokwadi: Nguva yakareba yekuchenesa inotungamira kune furo rakakora zvakanyanya uye kuwedzera kupinza, zvichiwedzera mutoro kumatanho ekuchenesa echipiri nechitatu, pasina kuwedzera giredhi rekupedzisira rekucheneswa. Kazhinji, gadziriro yakakodzera inosanganisira matanho 1-2 akaomarara, matanho 1-2 ekutsvaira, uye matanho 2-3 ekutsvaira.