描述
本文通過講述PLC控制系統(tǒng)在塑料擠壓造粒設(shè)備改造中的成功應(yīng)用,概述了該設(shè)備的工藝運行特點,闡述在設(shè)備運行中對混煉機(jī)、喂料機(jī)、熔融泵及切粒機(jī)等主要部件的聯(lián)鎖控制及對相關(guān)回路的PID控制,介紹了控制系統(tǒng)總體方案,硬件構(gòu)成設(shè)計及系統(tǒng)軟件的組成和功能特點。
聚乙烯塑料生產(chǎn)中,擠壓造粒設(shè)備的控制系統(tǒng)是保障設(shè)備正常運行和產(chǎn)品質(zhì)量的關(guān)鍵。各生產(chǎn)線的設(shè)備中大多是采用純硬件搭接的控制系統(tǒng)或配套DCS控制系統(tǒng)。依據(jù)擠壓造粒設(shè)備的控制特點,在近期新建國產(chǎn)擠壓造粒設(shè)備中,采用PLC控制系統(tǒng)代替了原來由繼電器搭接的陳舊古老的控制系統(tǒng)。改造后的PLC控制系統(tǒng)具有功能強(qiáng)勁、性能穩(wěn)定、易于維護(hù)等優(yōu)點。
改造前,由于進(jìn)料的不穩(wěn)定性及產(chǎn)品牌號改變的經(jīng)常性,手動操作很難使產(chǎn)品達(dá)到較理想的水平,且經(jīng)常出現(xiàn)堵料、防爆膜由于壓力過高損壞及其它機(jī)械故障等。采用PLC控制系統(tǒng)控制后,改善了設(shè)備運行的可靠性及連續(xù)穩(wěn)定性,使產(chǎn)品質(zhì)量達(dá)到較高水平。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計算機(jī)控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
RAD ACE-3600 RNC-Site Gateway 4930020000
RAD FCD-E1A FCDE1/AC/U/V35 2010060000 100-240VAC
RAD LA-140 ATM INTEGRATED ACCESS DEVICE W/SHDSL
RAD LA-140 ATM INTEGRATED ACCESS DEVICE
RAD AIRMUX-200/ODU/F24F/230/EXT/POE WIRELESS ANTENNA
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RADWARE WEB SERVER DIRECTOR PRO 5GB 16FE 128MB VER 7.50
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RADWARE AS2 WSD LINKPROOF CSD POWER SUPPLY VLT130-4110
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RADWARE WEB SERVER DIRECTOR NP 5GB 16FE 128MB WSD NP
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HP PROLIANT ML350 E5320 QUAD 2×1.86GHz 440189-421 2GB
COMPAQ ALPHASERVER DS10 DA-PB10A-AC
IBM HS20 Blade Server 8843-PLS Dual Xeon 3.6GHz 2G RAM
IBM HS20 Blade Server 8843-PLV Dual Xeon 3.6GHz 2G RAM
IBM HS20 Blade Server 8843-PST Dual Xeon 3.6GHz 4G RAM
IBM HS20 Blade Server 8843-45G Dual Xeon 3.6GHz 2G RAM
IBM HS20 Blade Server 8843-CTO Dual Xeon 3.6GHz 2G RAM
CROSSBEAM C25 Dual Xeon 3.2GHz 2G RAM NO HDD
SIEMENS RACK FP1 HI7050 W/MFP1,FFP1,E1554 MODULES
SIEMENS RACK FP1 HI7050 W/MFP1,FFP1 MODULES
HP 433027-03 436151-001 1.86Ghz 1066mhz E5320 Quad Core
POWER ONE SPDSUNM-02 SUN P/N 300-2006-03 FROM T2000 DC
Sun SAS Hard Drive 540-6611 73GB MAY2073RC 540-6611-01
SUN 300-1852-04 POWER SUPPLY FROM V215 AC 300-1852
Sun 501-7500 SERVICE PROCESSOR ROHS 501-7500-05 T2000
LOT OF 5 FANS FROM V251 SERVER PULLED
SUN 371-1099-07 PCI TRAY BOARD 371-1099 PULLED T2000
SUN CPU 1.5GHZ PULLED FROM V251 SERVER&371-2609
HP E1697A 155 Mb/s OPTICAL LINE VXI HP 75000 SERIES C
HP E1610A LINE INTERFACE MODULE VXI HP 75000 SERIES C
LOT OF 2 HP E4209A CELL PROTOCOL PROCESSOR HP 75000 C
HP E4208C SCSI DISK MODULE HP 75000 SERIES C
HP E1616A LINE INTERFACE MODULE VXI HP 75000 SERIES C
HP E1697A 155 Mb/s OPTICAL LINE VXI HP 75000 SERIES C
HP E4208C SCSI DISK MODULE HP 75000 SERIES C
LOT OF 2 HP E4209A CELL PROTOCOL PROCESSOR HP 75000 C
HP E4208A SCSI DISK MODULE HP 75000 SERIES C
HP E1610A LINE INTERFACE MODULE VXI HP 75000 SERIES C
HP E1616A LINE INTERFACE MODULE VXI HP 75000 SERIES C
HITACHI 9200 F1F CONTROL UNIT+DFFM5 FIBRE I/F CARD