Nā pōhaku lepo SK32 a me SK34: He kūpono no nā ʻoihana wela kiʻekiʻe

I loko o ka honua o nā noi ʻenehana kiʻekiʻe, ʻo SK32 a me SK34 nā pōhaku lepo e kū nei i mea hilinaʻi a kiʻekiʻe - hana refractory solutions. ʻO kēia mau pōhaku lepo kekahi ʻāpana o ka SK moʻo o nā pōhaku ahi ahi, kaulana no ko lākou kūpaʻa wela a me ka lōʻihi.​

1. Hoʻohui a me ka hana ʻana

Hana ʻia nā pōhaku lepo ahi SK32 a me SK34 mai nā mea maka maikaʻi loa, me ka pālolo refractory, chamotte calcined, a me ka mullite. ʻO ke kaʻina hana e pili ana i nā ʻenehana holomua e hōʻoia i ka haʻahaʻa haʻahaʻa o nā pōhaku lepo, ikaika kiʻekiʻe, a me ke kūpaʻa maikaʻi loa i ka spalling thermal, abrasion, a me ka corrosion.​

Pilikia SK32

Loaʻa i nā pōhaku lepo SK32 ka 35 - 38% alumina. Hāʻawi kēia haku iā lākou i ka refractoriness o ≥1690 °C a me ka refractoriness ma lalo o ka ukana (0.2 MPa) o ≥1320 °C. Loaʻa iā lākou kahi porosity o 20 - 24% a me ka nui nui o 2.05 - 2.1 g / cm³.​

SK34 Pilikia

ʻO nā pōhaku lepo SK34, ma ka ʻaoʻao ʻē aʻe, loaʻa ka ʻike alumina kiʻekiʻe, mai ka 38 - 42%. Loaʻa kēia i ka refractoriness kiʻekiʻe o ≥1710 °C a me ka refractoriness ma lalo o ka ukana (0.2 MPa) o ≥1340 °C. ʻO kā lākou porosity ʻike ʻia he 19 - 23%, a ʻo ka nui nui he 2.1 - 2.15 g/cm³.​

2. Nā noi

Ma muli o ko lākou mau waiwai koʻikoʻi, loaʻa i nā pōhaku lepo SK32 a me SK34 ka hoʻohana nui ʻana i nā ʻano ʻoihana wela kiʻekiʻe.​

Nā mea kanu kila

Ma ka hana kila, SK34 bricks ka mea e koho ai - no ke koho ana i ka umu ahi, ladles, a me na mea wela wela e ae. ʻO nā kūlana wela loa o nā mea kanu kila e koi aku i nā mea me ke kūpaʻa wela kiʻekiʻe, a kūpono nā pōhaku SK34 i ka bila. Hiki iā lākou ke pale i ka wela nui a pale i nā hale lalo mai ka pōʻino

ʻO nā pōhaku lepo SK32, me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa o ka wela akā ʻoi aku ka maikaʻi o ka hana, hoʻohana pinepine ʻia i nā wahi o ka mea kanu kila i ʻike ʻia i ka wela haʻahaʻa, e like me kekahi mau uhi umu kahi ʻaʻole ʻoi loa ka nui o nā koi wela.​

ʻOihana Seramika,

Hoʻohana mau ʻia nā pōhaku ʻelua SK32 a me SK34 i nā kiln seramika. He kūpono nā pōhaku lepo SK32 no nā kiln e hana ana i nā wela haʻahaʻa, e hāʻawi ana i ka insulation pono a me ka pale wela. Hoʻohana ʻia nā pōhaku lepo SK34, me ko lākou hiki ke pale aku i ka wela, i loko o nā kiln kahi e komo ai nā mahana wela, e hōʻoiaʻiʻo ana i ka maikaʻi o nā huahana ceramic i ke kī ʻana.​

Nā mea kanu sima

I loko o nā kiln rotary sima, hana koʻikoʻi nā pōhaku SK32 a me SK34. ʻO ka loaʻa ʻana o ka wā lōʻihi i nā wela kiʻekiʻe a me nā mea abrasive i nā mea kanu sima e pono ai i nā brick refractory me ka ikaika mechanical maikaʻi a me ke kūpaʻa ʻana. Hoʻohana ʻia nā pōhaku SK32 ma nā ʻāpana o ke kiln kahi i ʻole ai ka wela ma nā pae kiʻekiʻe loa, aʻo nā pōhaku SK34 i hoʻokomo ʻia ma nā wahi i loaʻa i ka wela nui loa, e like me ka wahi wela o ka kiln.​

Nā mea kanu petrokimia a me nā mea kanu

Hoʻohana nui ʻia nā pōhaku SK34 i nā reactors a me nā mea wela i ka petrochemical a me nā mea kanu kemika. Hoʻopili pinepine kēia mau mea kanu i nā hopena kemika kiʻekiʻe, a ʻo ka hiki i nā bata SK34 ke pale aku i ka wela a me ka ʻino kemika e lilo lākou i koho maikaʻi loa. Hiki ke hoʻohana ʻia nā pōhaku lepo SK32 i kekahi mau noi i loko o kēia mau mea kanu kahi i ʻoi aku ka haʻahaʻa o ka mahana

3. Pono

Hāʻawi nā pōhaku SK32 a me SK34 i nā pono he nui i makemake nui ʻia i nā noi wela kiʻekiʻe.​

Kūleʻa wela maikaʻi loa

E like me ka mea i ʻōlelo ʻia ma mua, hiki i nā ʻano ʻelua o nā pōhaku ke kū i nā mahana kiʻekiʻe. ʻO ka refractoriness kiʻekiʻe a me ka hana maikaʻi ma lalo o ka ukana e hōʻoia i hiki iā lākou ke hoʻomau i ko lākou hoʻonohonoho pono ʻana i loko o nā wahi wela nui loa.​

Haʻahaʻa Thermal Conductivity

He haʻahaʻa ko lākou conductivity thermal, ʻo ia hoʻi e hōʻemi lākou i ka nalo wela. ʻAʻole pono kēia waiwai no ka mālama ʻana i ka mahana i makemake ʻia i loko o nā mea hana ʻoihana akā kōkua pū kekahi i ka hōʻemi ʻana i ka ikehu. Ma ka pale ʻana i ka wela mai ka holo ʻana, hiki i nā mea kanu ke hana ʻoi aku ka maikaʻi a me ke kumu kūʻai

Ikaika Mechanical Kiʻekiʻe,

Loaʻa i nā pōhaku SK32 a me SK34 ka ikaika mechanical kiʻekiʻe. ʻAe kēia iā lākou e hoʻomanawanui i ke koʻikoʻi mechanical, abrasion, a me ka hopena i loaʻa i nā ʻoihana ʻoihana. ʻO kā lākou hoʻonohonoho pono e hōʻoia i ka lōʻihi o ka lawelawe ʻana, e hōʻemi ana i ka pono no ka hoʻololi pinepine ʻana a pēlā e mālama ai i nā kumukūʻai mālama.​

Kūleʻa maikaʻi i ka Thermal Spalling a me ka Corrosion

Kūleʻa nui nā pōhaku lepo i ka spalling thermal, ʻo ia ka māhā a i ʻole ka ʻili ʻana o ka mea ma muli o ka loli wikiwiki o ka mahana. Hāʻawi pū lākou i ke kūpaʻa maikaʻi loa i ka corrosion, ʻoi aku ka maikaʻi ma nā kaiapuni waiwai. ʻO kēia ka mea i kūpono iā lākou no ka hoʻohana ʻana i nā ʻoihana ākea kahi e maʻamau ai kēlā mau pilikia

4. Ke koho ʻana i ka Brick Pono

Ke hoʻoholo nei ma waena o SK32 a me SK34 brick no kahi noi kūikawā, pono e noʻonoʻo ʻia kekahi mau mea
Pono wela

ʻO ke kumu koʻikoʻi ka mahana e ʻike ʻia ai ka brick. Inā pili ka noi i nā wela kiʻekiʻe loa, e like me nā kapuahi hana kila a i ʻole kekahi mau kiln wela kiʻekiʻe, ʻo SK34 nā pōhaku lepo ke koho maopopo. Eia nō naʻe, no nā noi me nā wela haʻahaʻa kiʻekiʻe, hiki i nā pōhaku SK32 ke hāʻawi i kahi hopena ʻoi aku ka uku - ʻoi aku ka maikaʻi me ka ʻole e kaumaha nui i ka hana.​

Kaiapuni Kemika

He mea koʻikoʻi nō hoʻi ke ʻano kemika o ke kaiapuni kahi e hoʻohana ʻia ai ka pōhaku. Ma nā kaiapuni me nā kiʻekiʻe o nā kemika corrosive, pono paha ke kūpaʻa ʻoi aku ka maikaʻi o nā pōhaku lepo SK34. Akā inā he liʻiliʻi ka ʻike kemika, lawa paha nā brick SK32.​
Noonoo Kumukuai

ʻOi aku ke kumu kūʻai - ʻoi aku ka maikaʻi o nā pōhaku SK32 ma mua o nā pōhaku SK34. Inā ʻae ka mahana a me nā koi kemika o ka noi, hiki i ka hoʻohana ʻana i nā pōhaku SK32 ke kōkua i ka hōʻemi ʻana i nā kumukūʻai holoʻokoʻa. Eia nō naʻe, ʻaʻole pono e hoʻololi i ka hana no ka mālama kālā

I ka hopena, ʻo SK32 a me SK34 brick ʻelua o nā mea refractory hilinaʻi loa i loaʻa no nā noi ʻoihana kiʻekiʻe. ʻO kā lākou mau waiwai kūʻokoʻa, ka laulā o nā noi, a me ke kumu kūʻai - hoʻolilo iā lākou i koho kūpono no nā ʻoihana like ʻole. Inā he hale kila, hale hana seramika, mea kanu sima, a i ʻole kahi hale petrochemical, hiki i kēia mau pōhaku lepo ke hāʻawi i ka pale wela a me ka lōʻihi e pono ai e hōʻoia i nā hana maʻemaʻe a maikaʻi.​