Lub No. 3 limestone crusher nyob rau hauv lub Hoobkas cement siv 2P℉-1212 yam cuam tshuam crusher rau thawj crushing. Qhov kev pub mis siv 1500 × 12000cement apron feeder, thiab tsav tsheb siv Y225M-4 peb-theem AC asynchronous lub cev muaj zog. Vim hais tias lub feeder tsis tuaj yeem kho cov kab khiav ceev ntawm lub cev, thaum pub tshaj tawm, tsuas yog tso siab rau txoj hauv kev kom tsis txhob muaj lub cev muaj zog noj, kev tswj kom muaj nuj nqis tau coj ib qho teeb meem, tshwj xeeb tshaj yog cov huab cua los nag, cov khoom siv viscosity, lub cev muaj zog hnyav pib thiab nres tsis tu ncua, lub cev muaj zog thiab kis tau tus mob cuam tshuam. Tsis tas li ntawd, kev pub mis ib ntus tsis yooj yim los tswj qhov sib xws ntawm kev pub mis, muaj kev cuam tshuam zoo rau qhov loj me me ntawm cov paug tawm, nyuaj kom ua tau raws li qhov yuav tsum tau ua. Peb siv thev naus laus zis tswj kev tswj qhov ceev ntawm lub feeder, uas yog, raws li lub hauv paus ntsiab lus ntawm N=6011-s, kom paub qhov ceev tswj ntawm AC lub cev muaj zog. Xav txog qhov yuav tsum tau ua ntawm crushing system, zaus converter tuaj yeem tsis tsuas yog tswj cov kev khiav hauj lwm ceev ntawm lub cev muaj zog, tab sis kuj muab cov zis txaus torque. Txog rau qhov kawg no, peb xaiv ACS600 series zaus converters uas tsim los ntawm ABB ntawm ntau lub inverter hom, uas nws cov yam ntxwv tseem ceeb yog raws li nram no: 1) Direct torque (DT degree) tswj tshuab, hloov cov tsoos vector inverter tswj hom, xoom ceev tsis xav tau ceev tawm tswv yim, muaj peev xwm ua tiav tag nrho torque tso zis yam ntxwv, dynamic teb yog ceev, ruaj khov thiab controllable, pib torque 20%. 150% overload rau 1 min.
2) Txhawm rau muab ntau yam kev tiv thaiv rau lub cev muaj zog, suav nrog dhau voltage, dhau tam sim no, tsis muaj theem thiab lub cev muaj zog thaiv thiab kub nce kev tiv thaiv, tib lub sijhawm tuaj yeem paub qhov muag muag ntawm lub cev muaj zog, ua kom cov cuab yeej ua haujlwm zoo, yog li ncua kev pabcuam lub neej ntawm cov cuab yeej, thiab tuaj yeem txo kev vibration, cuam tshuam thiab suab nrov, muab qhov chaw ua haujlwm zoo. Qhov kev ntsuam xyuas qhia tau hais tias thaum lub cev muaj zog tsav los ntawm cov cement apron feeder ua haujlwm ib txwm, peb qhov - theem nruab nrab tam sim no tsuas yog 30A (rated tam sim no 84.6A), thiab kev xaiv lub cev muaj zog yog qhov loj dua. Txhawm rau kom txuag tau qhov kev nqis peev, tus tswv xeev hloov pauv zaus raug xaiv tom qab ua qauv qhia. Cov kev txwv tshwj xeeb tau qhia hauv Table 1.
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Table 1 Zaus converter parameters |
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Specification |
ACS601-0060-3 |
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Rated tso zis tam sim no / A |
76 |
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Lub sijhawm luv luv overload tam sim no / A |
114 |
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Txhawb lub cev muaj zog / kW |
37 |
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Cov zis zaus / Hz |
0~300 |
Lub installation thiab xaim ntawm lub zaus converter yog qhov yooj yim. Feem ntau, lub zaus converter tsuas yog txuas nrog lub ntsiab Circuit Court cable ntawm lub cev muaj zog hauv series. Txhawm rau kom yooj yim ntawm kev ua haujlwm, 10k2 ceev kho potentiometer thiab cov duab digital tachometer tuaj yeem muab ntxiv rau ntawm lub rooj ua haujlwm, thaum qhov pib pib- nres tswj lub voj tsis tas yuav hloov pauv. Ua ke nrog cov txheej txheem thev naus laus zis ntawm cov txheej txheem crushing, txhawm rau tiv thaiv qhov tshwm sim ntawm qhov tsis zoo xws li cua sov ntawm lub cev muaj zog winding tshwm sim los ntawm kev sib raug zoo siab thaum lub sij hawm tom qab tsis muaj- kev ua haujlwm thauj khoom thiab qis- zaus ua haujlwm, qhov kev txwv qis ntawm zaus yog teem rau 10Hz (ceev 300r / min) thiab qhov siab tshaj li 40 Hz (50 Hz). Los ntawm lub pointer potentiometer, Kho arbitrarily raws li qhov tseeb xav tau ntawm ntau lawm.
1) Kev ceev ceev ntau ntawm kev tswj kev pub noj kom ua tiav kev tswj hwm kev ceev nrawm, raws li cov khoom siv los thiab cov xwm txheej tom ntej hauv lub sijhawm los kho tus nqi pub mis, kom ua tiav qhov kev xav tau ntawm kev pub noj tas mus li thiab niaj hnub.
3) Thaum peb -theem AC asynchronous lub cev muaj zog tsis muaj kev puas tsuaj yog pib los ntawm kev pib ncaj qha, qhov pib tam sim no yog kwv yees li 5 ~ 7 npaug ntawm qhov ntsuas tam sim no. Tom qab kev hloov kho, qhov pib tam sim no tsawg dua 1.7 npaug ntawm qhov ntsuas tam sim no, thiab nquag nres lub cev muaj zog lub sijhawm pub mis yog tshem tawm, uas ua kom zoo dua qub ntawm cov cuab yeej siv thiab txo cov khoom siv tu cov neeg ua haujlwm ntawm tus ncej . 3) Cov txiaj ntsig tseem ceeb ntawm kev txuag hluav taws xob Tom qab ntau tshaj li ob lub hlis ntawm kev ua haujlwm, lub cev muaj zog khiav tsis tau 2.
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Table 2 Kev ua haujlwm tsis ua haujlwm ntawm lub cev muaj zog |
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Zaus / Hz |
Kev sib hloov ceev / (r / min) |
Nruab nrab daim phiaj tam sim no / A |
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10 |
296 |
3.7 |
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20 |
597 |
7.4 |
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30 |
900 |
11 |
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40 |
1198 |
15 |
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42 |
1258 |
16 |
Thaum cov cement apron feeder khiav ib txwm, kev khiav hauj lwm zaus ntawm lub cev muaj zog yog 20 ~ 40Hz, qhov nruab nrab tam sim no ntawm daim phiaj hluav taws xob yog 8 ~ 15A, thiab lub zog txuag tau ntau dua 40%.
