(Flour Ton mi hta Power law law jai lang ai kun? Wan n-gun manu hpe sha mara hkum shagun-90% Mills ni gaw "N kaja ai arung arai n bung ai" a majaw tsin-yam tsindam hkrum nga ai)
Daini na yak hkak ai masa hta, muk tawng n-gun n rawng ai hte mam manu kaba ai aten hta, matut manoi rawt jat wa ai wan manu ni gaw, muk tawng law law a matu "hpang jahtum na hkaulan mam" tai wa nga ai. Mill manager ni gaw, galaw shapraw ai lam hta ngang grin ai raitim, shata shagu na wan jahpu gaw matut nna rawt jat wa ai hpe ayan mu lu ma ai.
Masha shagu gaw "peak-shifting production" hte "high-efficiency motors ni hte galai shai na" hpe myit maju jung ai shaloi, shanhte gaw, hka htung kata na grau makoi magap da ai hte manu dan ai manghkang langai hpe n yu n hkan galaw chye ma ai: n tara ai arung arai ni hpe shingdaw ai lam hte n-gun n law ai.
Ma ni a hkyepdin hta masha kaba langai hpe marathon gat na matu atik anang galaw ai hte bung ai-shanhte gaw n-gun yawm mat na sha n-ga, grai kaba ai n-gun hpe mung shamat kau na re.
1. Makoi da ai wan n-gun sat ai wa: "Gumra kaba gaw leng kaji hpe gang je kau ai" ngu ai mabyin
Hkaulan mam htu ai jak law malawng a roller mill room de shang wa yang, n bung ai lam langai hpe mu lu na re: mying jahpan hta lawm ai power rating gaw grai tsaw ai, raitim, teng sha bungli galaw ai current gaw rated current hta grau yawm ai.
"Gumra kaba gaw leng kaji hpe gang je kau ai" ngu ai gaw hpa rai ta?
Dai hpe shim lum ai hku ginsup na matu, design institute ni (sh) madu ni gaw, jak rung ni hpe lata ai shaloi, shim lum ai lam kaba hpe jat bang chye ma ai. Ga shadawn, roller mill langai mi hta 30 kW motor sha ra na re, raitim, "overload shocks" ngu sawn la ai hpe hparan na matu (sh) spare parts ni hpe madang masat da na matu, 45 kW (sh) 55 kW motor hpe pyi bang da ai.
Hpa manu jahpu nga ai kun?
Galoi mung Iron sum ai lam:Motor hpe n-gun jaw nna shinggrup nga ai aten du hkra (load npu kaw rai tim, n rai tim), magri core kata na eddy current sum ai lam ni hte hysteresis sum ai lam ni gaw n galai shai ai sha nga ai. kW motor gaw 30 kW motor hta grau nna no-load sum ai lam grau law ai.
N kaja ai atsam:Motor langai mi gaw n-gun n law ai (rated load a 40% npu) hta hkawm ai shaloi, power factor grai hkrat sum mat ai. Lachyum gaw, n-gun law law hpe grid hte motor lapran hta nhtang nhtang galai shai ai, akyu rawng ai bungli n galaw ai-rai tim, na a wan jahpu hta naw ka da ai.
Kaja ai akyu:Motor langai a n-gun grau ja ai gaw 75%-100% load range hta byin pru wa ai. Load 50% npu de hkrat wa ai shaloi, efficiency gaw hkrat sum mat ai. Ndai aten hta, motor gaw power source hta grau nna n-gun n rawng ai heater zawn galaw ai.
2. N yu n hkan galaw ai jak rung sum mat ai lam: Belt Drive "N-gun lagu ai lam"
Motor hkum nan hta lai nna, power transmission stage mung manghkang kaba langai mi rai nga ai. Hkaulan mam htu ai jak law malawng gaw V-belt ni hpe ya du hkra grai lang nga ai.
Belt Drive ni a akyu rawng ai hkalem hkalau ai lam:
Belt nnan langai gaw 95%-98% daram shapoi lu ai atsam nga ai. Raitim, belt ni asak kaba wa ai, galu wa ai, aten ladaw ni na wa ai hte maren, efficiency gaw 100 de hkrat sum mat chye ai.85% (sh) dai hta grau yawm ai.
Over-Tension ngu ai n hkru n kaja ai lam:Belt n hkrat hkra, gram lajang ai magam gun ni gaw belt ni hpe grai gang je kau chye ai. Ndai grai n-gun ja ai majaw, motor a shawng na bearing hte roller bearing lahkawng yan hta friction sum ai lam grau law wa nna, grai katsi mat ai, sau htum mat ai, mechanical friction sum ai lam grai law wa ai.
Belt Pulley ni a lawan ai lam n bung ai:Belt law law hpe parallel lang ai shaloi, n bung ai wear a majaw linear speed hta shai hkat ai lam byin chye ai. Nkau belt ni gaw jahtum e "drag along" byin mat nna, kata na n-gun atsam hpe jahten kau ya ai.
Data hpe shingdaw yu ai:Standard V-belt ni hpe -htuk manu ai n-gun n law ai V-belt (sh) synchronous belt ni hte galai ai gaw, 5%-8% daram n-gun dat ai lam hpe jat ya lu ai. kW roller mill langai a matu, ndai gaw shaning shagu kWh 10,000 daram hpe hkye la lu ai lachyum re.
3. Ahkyak ai lam: VFD hpe jai lang ai lam hte lawan ai hku gram lajang ai lam
Hkaulan mam htu ai jak law law hta, Variable Frequency Drives (VFDs) ni hpe "soft starter" hku sha lang ai-dai gaw atsam kaba hpe jahten kau ai lam rai nga ai. VFD hpaji masa a madung tara gaw:Motor a pru ai n-gun hpe load a matu ra ai n-gun majing hte hkrak hkrak hkra galaw ai.
VFD ni hpe lang nna power jai lang ai lam hpe gara hku shayawm na?
1. Roller Mills ni hpe n-gun rawng ai hku gram lajang ai lam
Htunghking roller mill ni gaw, arung arai ni galai shai ai lam hpe n sawn ai sha, lawan ai hku sha galaw nga ai. VFD hpe shalawm nna, roller mill a n-gun (load signal) hpe yu reng ai hku nna, .tengman ai - aten hta lusha jaw ai mawdaw a lawan ai hpe gram lajang ai, shing nraikaja dik htum grup yin lawan ai hte hkrak hkrak bung un bung ai fluted/smooth roll hkrang ni hpe madung tawn nna galaw ai.
Scenario: Hpang jahtum na shayawm ai rolls ni de arung arai lwi ai lam yawm mat ai shaloi, VFD gaw shi hkum shi feeder a lawan ai hpe shayawm kau ya nna, "idle grinding" hpe pat shingdang ya ai. Ndai gaw bran a hkam kaja lam hpe makawp maga ya ai sha n-ga, no-load power jai lang ai lam hpe mung hkrak shayawm ya lu ai.
2. Nbung n-gun hpe hkang ai
Pneumatic htaw sa ai ladat gaw n-gun lang ai lam kaba langai rai nga ai. Nbung lwi ai lam hpe hkang na matu htunghking ladat gaw, "na a n-gup hpe shinggrup let nsa sa ai" hte bung ai dampers- hpe hpaw/hkap nna, motor hpe full load hte naw galaw nga ai.
VFD hparan ladat: Nbung hka htung kata de n-gun sensor hpe bang da u. Filter/dust collector a ninghkap ai lam law wa ai shaloi (sh) suction point langai mi pat mat ai shaloi, VFD gaw fan a lawan ai hpe shi nan shayawm kau ya ai (damper langai hpe pat kau na malai).
N-gun hpe hkye la ai tara: Fan affinity tara ni hte maren, .nbung lwi ai gaw lawan ai hte maren sha rai nna, n-gun gaw lawan ai cube hte maren sha re. Speed hpe 10% shayawm ai gaw theoretical hku nna power hpe 27% shayawm ya ai. Ndai gaw kaga power-hkye la ai ladat ni hta grau nna kalang ta mahtai jaw ya lu ai.
3. "Regenerative Energy" ngu ai n kaja ai lam ni hpe koi gam na (Common DC Bus hpaji masa)
Hkaulan mam htu ai jak kaba ni hta, ayan brake galaw ai arung arai ni (pit drag conveyors ni hpe hkap la ai zawn re ai, shing nrai, hkring ai shaloi plansifters ni a inertia) gaw, bai gram lajang ai n-gun hpe shapraw ya ai. Common DC bus solution hku nna, motor langai hpe brake galaw ai hku nna pru wa ai n-gun hpe kaga motor langai mi hpe hkrak sha jaw ya lu nna, kata lam hpe bai jai lang lu ai. Ndai hpaji masa gaw high-end muk tawng ni hta kungkyang wa sai majaw, wan n-gun hpe 5%-10% hkye la lu ai.
4. Tatut galaw mai ai Lahkam Masum-Lam: Hkaulan mam Ton mi hta n-gun jai lang ai lam hpe shayawm na matu galaw sa wa na lam ni hpe jep joi ai lam
Na a hkaulan mam htu ai jak a n-gun lang ai lam gaw, hkaulan mam ton mi hta 70 kWh jan rai yang (hkaulan mam hkai ai a matu, hkaulan mam htu ai arung arai ni hpe shaw la ai n-gun hta hkan nna, 65-75 kWh/ton grup yin rai nga ai) rai nna, n-gun ja ai hku naw law nga ai rai yang, ndai lahkam masum hpe kalang ta galaw u:
Lahkam 1: Hpun ting -Hpun n-gun "Hkamja lam jep yu"
Clamp meter lang nna, hkawm sa nga ai motor shagu a 3-phase n-gun hpe shadawn u. Load Rate=(Shadawn ai / Rated) × 100% hpe sawn la u.
Hkrang shala ai:45% npu na aten galu-load rate nga ai motor langai ngai hpe "galai shai na jahpan" hta bang ra ai. Lajang da ai gram lajang ai aten hta, shanhte hpe hkrak hkrak n-gun rawng ai YE4 (sh) YE5 high-efficiency motor ni hte galai kau u.
Lahkam 2: Drive System ni a matu "Kaja dik htum galaw ai aten"
Hten za mat sai -htum mat sai V-belt ni hpe synchronous toothed belt ni hte tsep kawp galai kau u. Synchronous belt ni gaw n-gun n law htum ra ai, zero slip nga ai, 98% jan na shapoi ai atsam hpe lu la ai, bearing ni a n-gun hpe shayawm ya lu ai.
"Belt Tension hpe jep joi ai lam hpe gawgap na." Strobe nhtoi (sh) tension gauge lang nna n-gun n-gun hpe jep yu u. "Grai n-gun ja ai hta grai n-gun ja ai grau kaja ai" ngu ai n hkru n kaja ai lailen hpe pat hkum u.
Step 3: Key Equipment ni hta VFD ni hpe bang na
Ahkyak ai lam 1:Ga nhpu hpe shinggyin la lu ai nbung laru (n-gun kaba, galai shai lu ai atsam kaba).
Ahkyak ai lam 2:Tail-hpang jahtum na roller mill ni (arung arai galai shai ai lam law ai, n-gun n rawng ai aten galu).
Ahkyak ai lam 3:Screw hte htaw ai jak ni / drag chain hte htaw ai jak ni (arung arai lwi ai aten kadun laman hta full-speed idling hpe koi nga u).
Daw dan lam
Daini na aten hta grai shingjawng hkat ai muk tawng galaw ai bungli hta, kilowatt-hkying hkum shagu hpe hkye la lu ai gaw, akyu san seng ai akyu rai nga ai.Hkaulan mam ton mi hta n-gun lang ai hpe shayawm ai gaw na a jak rung a shadawn sharam hpe shinggrup kau ai lam n re-motor shagu, belt shagu, roller shagu gaw shi a "optimal efficiency zone" hta bungli galaw lu hkra galaw ai lam re.
"Gumra kaba gaw leng kaji hpe gang je kau ai" ngu ai myit masa hpe kau da nna, hkrak tup hkrak shadawn shadang hpe hkap la u-ndai gaw wan manu grai tsaw ai prat hta muk tawng ni a matu ngang kang dik htum npawt nhpang rai nga ai.
(Madung: VFD hpe bai gram lajang na matu hte mawdaw sizing hpe sawn la na matu, laksan parameters ni hpe na a hka htung a process flow diagram hte arung arai ni a jahpan hpe hpaji ninghkring ni hku nna jep joi ai lam hpe madung tawn nna galaw ra ai.)
