Hka lim ai arung arai ni hte galaw ai arung arai ni gaw n dang hti ai. Arung arai amyu myu hte arung arai ra kadawn ai lam ni a physicochemical properties ni hta shai hkat ai lam ni hta n-ga, katsi ai aten na arung arai ni a thermophysical properties ni hte katsi ai aten hta hkyet mat ai system arung arai ni a matu ra ai arung arai ni gaw designer ni a matu ahkyak ai myit yu ra ai lam ni mung rai nga ai. Ndai laika hta, designer ni hpe hkan tam na matu, hka ja ai arung arai ni hta, arung arai ni hpe lata la na matu ladat nkau mi hpe tang madun da ai.
Hka ja ai arung arai ni a arawn alai
Ya aten du hkra, hka lim ai arung arai amyu myu hpe awng dang hkra galaw lu sai rai nna, hpaga lam hta lang ai masha latsa jan hpe mung law law lang lang ai. Hka lim ai arung arai ni hpe garan ginhka ai ladat amyu myu mung nga ai. Hka lim ai lam hta katsi ai hpe htawt sit ai ladat hpe madung tawn nna, shanhte hpe convection dryer (nbung n-gun shayawm ai jak ni, hka lim ai hka lim ai jak ni, hka n-gun rawng ai hka lim ai jak ni, hka n-gun rawng ai hka htung ni, etc.)), n-gun rawng ai hka n-gun (rake dryer, roller dryers zawn re ai), hte radiation dryers ( microwave dryer, tsan ai de tsan ai hka htung ni, tsan ai de tsan ai hka htung ni, tsan ai shara kaw na hka n-gun shayawm ai jak) ni hku nna garan mai ai. Dai hta n-ga, hka lim ai jak law law hpe hpawng de da ai hka lim ai arung arai ni nga ai, dai ni gaw paddle dryers.
Dryer law malawng gaw non{0}}planerdard arung arai ni rai nga ai, madung gaw dryer langai hte langai gaw n bung ai arung arai ni hpe galaw ai majaw, hka lim ai masa law law gaw arung arai ni hta hkan nna galai shai wa ai majaw, dryer a hkrang hte arung arai ni hta galai shai wa ai. Dai majaw, katsi na matu ra ai arung arai ni a masat da ai lam ni hpe asan sha chye na na matu ahkyak nga ai, ga shadawn, arung arai masa, hka lim ai lam amyu myu, hka lim ai aten hta arung arai ni, n-gun n rawng ai lam ni nga ai, wan hkru ai lam hte bawm kapaw chye ai lam, n shamu n shamawt ai wan n-gun shapraw ai lam, laksan arung arai ni hpe ra sharawng ai lam ni, hte dai arai a thermosensens ni hpe ra sharawng ai lam ni, hka lim ai jak a parameter amyu myu hpe chye na lu na matu. Ndai lam a majaw, dryer law law gaw mass- hpe n mai galaw ai; dai majaw, hkrang shapraw ai lam gaw, arung arai a laklai ai lam hte bungli galaw ai masa ni hpe galai shai lu ai atsam hpe myit maju jung ra ai.
Hka lum ai arung arai ni hta lang ai arung arai ni a matu lata ai ladat gaw well- hpe chye ai. Hka lim ai arung arai ni a arung arai gaw, katsi ai nta a manu hta ahkyak ai lam langai rai nna, arung arai ni hpe lata ai lam gaw, jak manu ni hpe hkang lu na matu ahkyak ai ladat langai rai nga ai. Madung hku nna, katsi ai arung arai ni a matu ra ai arung arai ni hpe lata ai shaloi lawu na lam ni hpe myit yu ra ai: Hpa baw galaw nga ai arung arai ni a ra kadawn ai lam ni hpe galaw ra ai. Hka lim ai arung arai ni a madung bungli gaw, jaw da ai arung arai langai hpe hkyet kau na matu re. Hpa majaw nga yang, dryers ni gaw arung arai amyu myu hpe hparan ya ai, hkai nmai, malu masha, tsi mawan, tsi mawan, nam maling arung arai ni, laika pa, hte nlung npan ni zawn re ai hkai sun law law hpe shinggrup da ai majaw, arung arai ni a jahpan gaw n dang hti ai. Hka htum mat ai arung arai ni a matu ra kadawn ai lam ni grai shai hkat ai. Ga shadawn, tsi mawan ni hpe lang ai shaloi, hka lim ai aten hta magri ion ni hte n kayau ai sha, tsi mawan ni hpe bai gram lajang ai, tsi mawan ni, electronic arung arai ni, wan n-gun n-gun ni hpe n mai kayau ai; dai majaw, carbon steel arung arai ni hpe jak rung ni hpe lata ai shaloi koi ra ai. Dai hta n-ga, dai arung arai ni hta rawng ai hka n-gun hta acid, alkali, sau, shing nrai, organic solvent ni lawm yang, n bung ai n-gun rawng ai arung arai ni hpe n-gun n rawng hkra galaw ya lu ai. Ndai n-gun yawm ai lam gaw grau sawng wa ai, grau nna katsi ai aten hta. Dai majaw, dai arung arai hta lawm ai hka n-gun a arawn alai ni hpe madung tawn nna, htap htuk ai arung arai ni hpe lata la ra ai.
Dryer amyu hpe madung tawn nna, shawng de tsun lai wa sai hte maren, langai hte langai bungli galaw ai npawt nhpang n bung ai, dryer amyu myu hpe lata ai lam hte seng nna, arung arai ni hpe lata ai. Dai majaw, ndai hpe arung arai ni hpe lata ai shaloi, tup hkrak myit yu ra ai. Ga shadawn, nbung lwi ai lam hta magnesium oxide hpe hkyet kau ai shaloi, nbung lwi ai pipe kata na arung arai a n-gun kaba ai hte magnesium oxide a n-gun ja ai lam gaw, hkyet ai pipe a bends ni hta grai sawng ai hku n-gun yawm mat ai. Dai majaw, ndai ginra a matu, n-gun n rawng ai hkrang (sh) hpun palawng hpe bai gram lajang lu ai baw hpe bai gram lajang lu ai. Dai hta n-ga, stainless steel gaw carbon steel hta grau n-gun yawm ai. Dai majaw, hka lim ai arung arai ni hta, n-gun dat hpe madung hku nna lata la ai rai yang, n-gun n rawng ai n-gang ni a thermal conductivity hpe madung tawn nna, n-gun galai shai ai shara hpe sawn la ra ai. Engineering ga shadawn ni gaw, steam heat exchanger ni hpe lata ai shaloi, stainless steel gaw carbon n-gang hta 30% grau ra ai hpe madun dan ai.
Hka lim ai lam a matu ra ai arung arai ni hpe lata ai lam gaw, arung arai hte katsi ai masa hta hkan nna shai hkat nga ai. Kalang mi hta ngai gaw, n-gun ja ai{1}} n-gun ja ai dryer hpe hkrang shapraw nna, dai gaw n-gun n rawng ai sau ni hpe kalang ta htum kau nna, polymerization reaction hpe hpaw hpang wa ai. Ra ai hka katsi ai nbung katsi ai lam gaw 800℃jan rai nna, manu dan ai tsaw ai- a n-gun n rawng ai stainless steel hpe jai lang ra ai. Raitim, hkyet mat ai nta yawng gaw tsaw ai- aten kadun ginra hta n nga ai hpe myit yu yang, jahpan ni hta, tsaw ai- n-gun n rawng ai arung arai ni hpe tsaw ai- n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-nga ai shara hta sha lang ai hpe mu lu ai. Ya gaw laning mi jan na sai.
Arung arai ni hpe jung ai makau grup yin hpe madung tawn nna, arung arai ni hpe lata ai lam: Law malawng hta, lahta na masa ni hpe hkan sa ai rai yang pyi, arung arai ni hta lawm ai arung arai ni hpe jung ai shara a ra kadawn ai lam ni hpe myit yu ra ai. Dai jak hpe chemical plant hta jung da ai rai yang, grup yin a n-gun n rawng ai lam ni hpe jak rung, hkang zing ai ladat, wan jak ni hpe atsawm sha myit yu nna, hkam la mai ai hkrang shapraw hparan ladat hpe galaw shapraw ra ai.
Hka lim ai arung arai ni a matu Corrosion makawp maga ai ladat ni: Hka lim ai arung arai law malawng gaw, n-gun rawng ai daw ni, plate, cylinder ni lawm ai. Corrosion makawp maga ai tsi gaw, n bung ai jai lang ai lam ni a dryer ni a matu ra kadawn nga ai. Lawu na gaw, arung arai ni hpe makawp maga ai hte galaw shapraw ai ladat ni hta mahkrum madup nkau mi hpe madun da ai.
Phosphating-passivation galaw ai lam: Hka lum ai hka htung ni hpe n-gun ja hkra galaw ai hta, 70% gaw carbon n-gang hte galaw da ai. Process ni a lapran na galu kaba ai galai shai ai aten gaw, npu kaw n-gun law law pru wa ai majaw, n-gun n-gun hpe n-hkap la shi yang, n-gup n-gu n-gun n-rawng ai sha, n-gup n-gu hpe n-gup n-gu shapraw na matu, lata hte galaw ra ai. Phosphating-passivation, electrochemical reaction hku nna, n-gun n rawng ai n-gang bungli galaw ai arai ni hpe lahkam mi hta sha, n-gun rawng ai n-gun hpe madun dan ai, dai shaloi, n-gun ja ai n-gang nsam hpe hpaw shadan dan nna, dai aten hta kalang ta, n-gun ja ai anti{6}}}rust sumla hpe galaw ai. Ndai sumla hkrung gaw n-gun n rawng ai sha, nbung hpe nhtoi shi ya jan hkam sharang lu ai. Shi a bungli gaw asan sha rai nga ai, bungli galaw ai makau grup yin hpe gram lajang ya ai, bungli galaw masha ni a n-gun hpe shayawm ya ai, masha n-gun hte arung arai ni hpe mung hkye la ya ai. Phosphating-}passivation hka hta emulsifier, molybdate, hka hta lwi ai phosphates ni, acid amyu myu ni lawm ai. Ndai ladat gaw, lahta e tsun lai wa sai jak amyu ni hta sha n-ga, kaga bung ai hkrang masa (sh) frame ni hpe n-gun n rawng hkra makawp maga na matu mung jai lang mai ai.
Hka lim ai arung arai ni hpe galaw shapraw ai hta electrostatic powder coating hpe jai lang ai lam: htunghking nsam ni gaw esters, ketone, hte hydrocarbons law law lawm ai ntsin ni rai nna, galaw shapraw ai, shinggyin tawn da ai, htawt sit ai, gawgap ai lam ni hta manghkang law law byin shangun ai. Shanhte gaw wan hkru chye ai, kapaw ai, grai n shim ai. Shanhte a n hkru n kaja ai lam a majaw, shanhte gaw nbung kata de galai shai mat nna, grup yin hpe grai awu asin di kau ma ai. Dai majaw, mungdan kata hte mungkan ting na coating galaw ai ni gaw, hparan ladat n law ai (sh) n lang ai coating amyu nnan ni hpe gyin shalat na matu ap nawng nga ma ai. Ndai zawn re ai coating amyu nnan langai gaw powder coating re.
N-gun ja ai hka lim ai hka htung a ntsa na shingnip gaw law malawng gaw katsi ai-}roll hte galaw da ai majaw, manu grai law ai. Hpa majaw nga yang, n-gun n rawng ai carbon steel a malai, stainless steel hpe lang ai a lam gaw, dai jak ni gaw, bungli galaw ai aten hta, n-gun n rawng ai arung arai amyu myu hte gases amyu myu hte matut mahkai wa na re, stainless steel gaw, n-gun ja ai n-gun hpe ninghkap lu ai atsam grai kaja ai; dai majaw, katsi ai-rolled stainless steel hpe lang ai.
Electrostatic powder hpe n-gun n rawng ai n-gang ni hte shingdaw yang, n-gun n rawng ai n-gang hte shingdaw mai ai. Ndai zawn re ai powder coating gaw ngang kang ai, ngang kang ai, mawn sumli ai atsam kaja ni nga ai, shinggan na nbung laru hpe ninghkap lu ai atsam hte katsi ai hpe ninghkap lu ai atsam kaja ni mung nga ai, dai hta n-ga, grai kaja ai corrosion hpe ninghkap lu ai atsam, chalking hpe ninghkap lu ai atsam, gloss, hte nsam amyu myu galaw ai, electrostatic powder spraying gaw dryer shells ni a corrosion makawp maga lam a matu hkum tsup ai.
Austentic Nickel-Chromium n-gun n-gun n-rawng ai Steel hte seng ai lam ni hpe bawngban ai Hka lim ai arung arai law law hpe shinggrup da ai, n-gup magap law malawng gaw 1Cr18Ni9Ti (18{10}}8 amyu) rai nga ai. welding galaw ai shaloi, corrosion hte fracture manghkang ni law law byin chye ai. Ndai lam gaw, arung arai ni a prat hpe grai hkra machyi shangun nna, bungli galaw ai lam hpe mung hkra machyi shangun ai. Austentic stainless steel hte shinggyim carbon steel lapran na shai hkat ai lam gaw, shi a n kaja ai nbung n-gun, nbung laru aten hta thermal jat wa ai lam kaba, wan n-gun grai law hkra hkam sharang lu ai lam ni hta nga ai. Ndai arawn alai ni a majaw, austentic steel a matu laksan welding galaw ai lam ni ra nga ai. Intergranular conrosion gaw high-alloy steel a madung manghkang langai mi rai nga ai. Ndai n-gang hkum nan hta n-gun n-gun grai law ai raitim, welding galaw ai lam gaw ndai ninghkap ai lam hpe shayawm ya ai. Austentic steel hpe welding galaw ai shaloi, corrosion byin wa ai gaw: yawng hpe, buga ginra, hte lapran na n-gun n rawng ai lam ni lawm ai. mungdan kata na hka lim ai arung arai ni hpe maigan kaw na shapraw ai. N kaja ai welding ladat ni gaw, bag filter a stainless steel frame a microstructure hpe hkra machyi shangun nna, shada da lapran na n-gun hpe hkra machyi shangun ai. Hka lim ai aten hta, dai arung arai hta acid rawng ai arung arai ni lawm nna, n-gang n-gang hpe lawan ai hku daw kau ya ai.
Ngut nna tsun ga nga yang, hka ja ai hpaji masa gaw, ya aten na shi a masa de rawt jat wa ai hte maren, engineering hpaji masa hku nna, shi a awng dang lam gaw, hka ja ai lam a masa hta sha n-ga, jak rung hkrang masa, arung arai ni hpe lata la ai lam, galaw shapraw ai ladat ni hta mung madung nga ai. Lam amyu myu hpe myit yu yang, hkam la mai ai hpaga lam masing hpe gyin shalat ai gaw sut masa lam hta grai ahkyak ai.