Setene se sa keneleng phosphate

Litene tse sa keneleng letho tse nang le phosphate tse phahameng li boetse li bitsoa litene tse sa keneleng phosphate. Litene tse sa keneleng phosphate ke mofuta oa lisebelisoa tse sa sebeliseng ho sebetsa, tse boleng bo holimo bauxite clinker kapa thense ea phosphoric acid e le sesebelisoa sa mantlha se tala, kapa aluminium phosphate binder, kamora ho hatelloa le ho theoa ke mochini o omileng, e phekoloa ka mocheso ka 400-600 ℃ ho etsa lihlahisoa tse kopantsoeng tse kopantsoeng ka lik’hemik’hale. E kopantsoe le litene. Bakeng sa ho qoba shrinkage e kholo nakong ea ts’ebeliso ea sehlahisoa ka mocheso o phahameng, hangata metsoako e hloka ho kenyelletsa lisebelisoa tsa ho futhumatsa tse futhumatsang, joalo ka kyanite, sillimanite, pyrophyllite, le silicon carbide. Sintered ka litene tse phahameng tsa alumina le letsopa, ho hanyetsa ho ebola ho molemo, empa mocheso o nolofatsang o tlase ebile o hanyetsa ts’enyeho, kahoo ho hlokahala hore ho eketsoe palo e nyane ea furu ea corundum, mullite, jj ho tiisa matrix. Ho ipapisitsoe le litene tsa phosphoric acid le phosphoric acid, litene tse haelloang tse entsoeng ka litene tse tloaelehileng tsa alumina ka mahlale a khethehileng le lisebelisoa tsa lik’hemik’hale li ntlafalitse khanyetso ea abrasion le mocheso o nolofatsang mojaro, o phahameng ho feta litene tse phahameng tsa alumina, matla a matle, ho pholisa ka potlako le ho hanyetsa mocheso ka potlako, Manganga ho ts’enyeho lik’hemik’hale le abrasion. Ponahalo ea eona e phahame ho feta ea litene tse phahameng tsa alumina li-kilns tsa rotary tsa samente.

Ts’ebetso ea tekheniki:

(1) Ts’ebetso e phahameng ea ho hanyetsa mocheso e ntle, mocheso o honyetsang o moholo ho feta likhato tse 1770, o khona ho mamella lithemparetjha tse phahameng haholo, mme ho fetoha hoa maemo a phahameng ha ho na tšusumetso e kholo.

(2) Ho tsitsitse hantle haholo ha mocheso, ho hanela serame se potlakileng le mocheso o potlakileng, ‘me ha ho na delamination kapa ho ebola tlasa liphetoho tsa mocheso.

(3) Ho hanyetsa lik’hemik’hale, ha ho na ho petsoha le ho eboloa ho tla etsahala moeeng oa Co mocheso oa 400-600 ° C.

(4) Ho apara hantle ho hanyetsa le matla a phahameng a ho patala.

Litene tsa phosphate li amohetsoe e le litene tsa boleng bo holimo bakeng sa lilnete tsa samente le lillo tsa kalaka.

Ho na le mefuta e ‘meli ea litene tse phahameng tsa alumina tse nang le phosphate: e’ ngoe ke litene tse phahameng tsa alumina (tse bitsoang litene tsa phosphate), ‘me e’ ngoe ke litene tse phahameng tsa alumina (tse bitsoang litene tse sa keneng).

Litene tsa phosphate li sebelisa tharollo ea acid ea phosphoric ka palo ea 42.5% ho ea ho 50% e le binder, ‘me kakaretso ke bauxite clinker e lekantsoeng mocheso o kaholimo ho 1600 ° C sebonong sa rotary. Nakong ea ts’ebeliso ea setene, phosphoric acid e itšoara ka phofo e ntle ea bauxite ka setene ho itšoara ka letsopa, mme qetellong e theha binder eo boholo ba eona e entsoeng ka cristobalite aluminium orthophosphate. Litene tse sa keneleng liaparo li sebelisa phosphoric acid le indasteri aluminium hydroxide ho lokisa tharollo ea aluminium phosphate joalo ka binder. Sekhahla sa eona sa molar ke Al2O3: P2O5 = 1: 3.2. Kakaretso e sebelisitsoeng e ts’oana le ea litene tsa phosphate. Ha ho sebelisoa litene, joalo ka phosphate, ho thehoa binder e thehiloeng ho mofuta oa cristobalite aluminium orthophosphate.

Litene tsa phosphate li loketse molomo oa sebōpi oa sebaka sa phetoho ea li-kilns tsa rotary le likarolo tse ling moo litene li leng bonolo ho oela, hape ho molemo bakeng sa sebaka sa ho thunya. E boetse e sebelisoa ka li-kiln shaft shaft, li-kilns tsa lime, li-kilns tsa indasteri ea carbon, jj.

Ts’ebetso ea sehlahisoa: E na le litšobotsi tsa matla a phahameng a ho tiisa mocheso oa kamore, botsitso bo botle ba mocheso, mocheso o phahameng o nolofatsang mocheso, litekanyo tse nepahetseng, bophahamo ba molumo o phahameng le khanyetso e ntle ea ho roala.

Litlhahiso tsa ‘mele le tsa lik’hemik’hale tsa litene tsa phosphate: