CN114229485B - 一种pvc干燥床粉料输送装置及控制方法 - Google Patents

一种pvc干燥床粉料输送装置及控制方法 Download PDF

Info

Publication number
CN114229485B
CN114229485B CN202111584512.3A CN202111584512A CN114229485B CN 114229485 B CN114229485 B CN 114229485B CN 202111584512 A CN202111584512 A CN 202111584512A CN 114229485 B CN114229485 B CN 114229485B
Authority
CN
China
Prior art keywords
data
vibrator
pvc
current
switch valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111584512.3A
Other languages
English (en)
Other versions
CN114229485A (zh
Inventor
苏宝玉
孔庆儒
臧春华
臧博丰
马传山
康朔
陈香归
张帅杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Yucheng Technology Co ltd
Original Assignee
Shenyang Yucheng Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Yucheng Technology Co ltd filed Critical Shenyang Yucheng Technology Co ltd
Priority to CN202111584512.3A priority Critical patent/CN114229485B/zh
Publication of CN114229485A publication Critical patent/CN114229485A/zh
Application granted granted Critical
Publication of CN114229485B publication Critical patent/CN114229485B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/66Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Centrifugal Separators (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

一种PVC干燥床粉料输送装置及控制方法,属于粉料输送自动控制技术领域,包括一与PVC粉料输送管线及PVC粉料振动筛相连的输送管线连接管,所述输送管线连接管上设有加湿器,所述加湿器与增湿装置通过加湿气体输送管线及加湿气体控制开关阀相连,于输送管线连接管的一侧设有振打器,所述振打器与仪表气源经振打器气源管线及振打器气源控制开关阀相连,所述加湿气体控制开关阀和振打器气源控制开关阀与控制装置相连。通过本发明可以有效解决PVC粉料在一次输送时的跑料和堵料问题,使生产过程更加平稳且连续。

Description

一种PVC干燥床粉料输送装置及控制方法
技术领域
本发明属于粉料输送自动控制技术领域,尤其涉及一种PVC干燥床粉料输送装置及控制方法。
背景技术
聚氯乙烯(PVC)是应用非常广泛的化工原料,在PVC生产工艺流程中,经过聚合的PVC需要通过干燥床,进行PVC料浆的干燥,从而获粉磨状态的PVC产品,最后送往PVC包装系统。在PVC干燥过程中,经干燥后的PVC呈粉末状态,含水率在0.1%~0.2%之间,在PVC粉末输送的时候极易产生静电,静电会降低PVC粉末的流动性,所以在经过振动筛的时候,会出现PVC跑料现象,跑料现象指正常的PVC粉末未通过振动筛,而进入筛后料中,影响正常PVC的产量。为了减小PVC粉末的静电,增强PVC粉末的流动性,需要在一次输送管线中增加加湿除静电装置,但是在实际生产过程中,输送管线中的负荷波动频繁,使得增湿量很难匹配PVC粉末输送量,这样会导致增湿量过多,使PVC粉末粘连在一起,形成块状,在输送管线中发生堵料,增湿量过少,PVC粉末静电过大,发生跑料。
现有的干燥床一次输送管线主要存在如下问题:加湿量过大会导致一次输送管线堵料,加湿量过小会导致一次振荡筛跑料。由于很难精确控制增湿系统,导致PVC干燥一次输送频繁发生跑料和堵料现象,跑料会减少正常PVC的产量,堵料会影响PVC干燥的连续性,这些问题对生产都是不利的。
发明内容
为解决干燥后的PVC粉料在一次输送发生跑料和堵料问题,本发明提供了一种PVC干燥床粉料输送装置及控制方法,该装置和控制方法可以有效解决干燥后的PVC粉料在一次输送时发生跑料和堵料问题,使PVC粉料产品输送更加稳定且连续。
为实现上述技术目的,本发明提供的技术方案如下:
一种PVC干燥床粉料输送装置,包括一与PVC粉料输送管线及PVC粉料振动筛相连的输送管线连接管,所述输送管线连接管上设有加湿器,所述加湿器与增湿装置通过加湿气体输送管线及加湿气体控制开关阀相连,于输送管线连接管的一侧设有振打器,所述振打器与仪表气源经振打器气源管线及振打器气源控制开关阀相连,所述加湿气体控制开关阀和振打器气源控制开关阀与控制装置相连。
进一步地,所述加湿器为由空心管构成的圆环,于圆环内侧开设有若干通气孔,所述通气孔设置于输送管线连接管内。
进一步地,所述控制装置为DCS或PLC控制平台。
一种应用所述装置的PVC干燥床粉料输送控制方法,所述方法包括如下步骤:
步骤一、离线获取描述堵料情况的历史数据组,将该数据组作为拟合模型的基础数据;
步骤二、利用拟合公式实时计算当前数据与基础数据的相似度,当相似度大于预设值时,执行阀门切换操作。
进一步地,所述步骤一包括:
步骤101):获取输送管线压力和离心机电流的历史数据,当一次输送发生堵料时,从当前时刻起向前切割10分钟历史数据;
步骤102):计算离心机电流平均值,对离心机电流平均值大小划分区间,依据该区间存储上一步骤切割的输出管线压力的历史数据,将该数据作为拟合用的基础数据,然后再次重复步上一步骤,获得描述堵料情况的所有数据。
进一步地,所述步骤二包括:
步骤201):获取从当前时刻起向前10分钟的输送管线压力和离心机电流当前数据;
步骤202):利用拟合公式,根据离心机电流平均值的不同值,分区间进行相似度的计算,然后计算控制器输出波形,周期=fit*10,持续时间60秒,
其中,fit是拟合度,是拟合用的基础数据,yi是当前采集的数据,/>是当前采集的数据平均值;
步骤203):根据方波序列的周期和持续时间,控制器产生方波序列,加湿开关阀根据该序列进行开关控制,振打器气源开关阀打开,振打器启动,一直持续到方波序列结束为止。
与现有技术相比,本发明的优点与有益效果如下:
(1)通过本发明的方法可以使加湿器的加湿量最大化运行,这样可以确保干燥床不同负荷下,PVC粉料都具有较好的流动性,更加易于通过振动筛,避免振动筛跑料。
(2)通过本发明的方法计算出的方波序列,进行振打器和加湿器的控制,可以避免加湿量过大引起的输送管线内堵料。
附图说明
图1为本发明的PVC干燥床粉料输送装置结构示意图;
图2为加湿器结构示意图;
图3为本发明PVC干燥床粉料输送控制方法主框图;
图4为获得基础数据方法的框图;
图5为计算拟合度及控制输出方法的框图。
具体实施方式
下面结合本发明的附图,具体描述本发明的具体实施过程,显然,所描述的实施过程仅仅是本发明一部分实例,而不是全部实例。
本发明提供一种PVC干燥床粉料输送装置及控制方法,可以解决PVC干燥床粉料在一次输送时的跑料和堵料问题。
如图1所示,一种PVC干燥床粉料输送防跑料和堵料装置主要由输送管线连接管S01、加湿器S02、振打器S03、振打器气源管线S04、振打器气源控制开关阀S05、加湿气体输送管线S06和加湿气体控制开关阀S07所组成。
进一步地,输送管线连接管S01上部用于连接PVC一次输送管线,下部用于连接振动筛。
加湿器S02用于对输送管线连接管S01内PVC粉料进行加湿,防止PVC粉料静电过大,在振动筛上跑料。
振打器S03用于对输送管线连接管S01进行振打,防止PVC粉料在输送管线连接管内堵料。
振打器气源管线S04用于连接振打器和气源。振打器气源控制开关阀S05用于控制振打器气源。加湿气体输送管线S06用于连接加湿器和被加湿的气体。加湿气体控制开关阀S07用于控制加湿器内的气体。
更进一步地,如图2所示,加湿器S02是由空心管S08构成的圆环,在圆环内侧开若干个通气孔S09,所述通气孔设置于输送管线连接管内,用于把被加湿的气体通入输送管线连接管内。
一种应用上述装置的PVC干燥床粉料输送控制方法,PVC干燥床粉料输送防跑料和堵料装置需要通过相应的控制才能完全解决跑料和堵料问题。
控制方法如图3所示,主要包括两部分:
步骤一:离线获取描述堵料情况的历史数据组,该数据组作为拟合模型的基础数据。
步骤二:利用拟合公式实时计算当前数据与基础数据的相似度,当相似度大于预设值时,执行阀门切换操作。
进一步地,离线获取描述堵料情况的历史数据组,该数据组作为拟合模型的基础数据。具体过程如图4所示包括:
步骤101):获取输送管线压力和离心机电流的历史数据,当一次输送发生堵料时,从当前时刻起向前切割10分钟历史数据。
步骤102):计算离心机电流平均值,对离心机电流平均值大小划分区间,依据该区间存储上一步骤切割的输出管线压力的历史数据,该数据作为拟合用的基础数据。然后再次重复步上一步骤,获得描述堵料情况的所有数据。
进一步地,利用拟合公式实时计算当前数据与基础数据的相似度,当相似度大于预设值时,执行阀门切换操作。具体过程如图5所示包括:
步骤201):获取从当前时刻起向前10分钟的输送管线压力和离心机电流数据。
步骤202):利用拟合公式,根据离心机电流平均值的不同值,分区间进行相似度的计算,然后计算控制器输出波形,周期=fit*10,持续时间60秒。
其中,fit是拟合度,是拟合用的基础数据,yi是实时采集的数据,/>是实时采集的数据平均值。
步骤203):根据方波序列的周期和持续时间,控制器产生方波序列,加湿开关阀根据该序列进行开关控制,振打器气源开关阀打开,振打器启动,一直持续到方波序列结束为止。
实施例1
一种应用上述装置的PVC干燥床粉料输送控制方法,包括如下步骤:
步骤一:离线获取描述堵料情况的历史数据组,该数据组作为拟合模型的基础数据。具体过程如下:
步骤S101:通过PLC或DCS平台获取输送管线压力和离心机电流的历史数据,当一次输送发生堵料时,从当前时刻起向前切割10分钟历史数据。
已知2021/12/1 10:35:00发生一次输送堵料,获得前十分钟的数据如下:
输送管线压力基础数据:
69.55,70.41,70.79,71.46,71.24,71.53,71.77,70.67,70.22,70.17,69.84,68.87,69.17,69.03,69.74,70.47,70.82,71.47,71.48,71.02,70.23,70.32,69.59,69.49,69.51,69.41,69.20,69.42,70.59,70.59,71.13,71.26,71.26,70.22,69.61,69.90,69.34,69.29,69.35,69.14,70.17,70.89,70.63,70.94,71.17,70.56,69.86,69.41,69.10,68.70,69.05,69.72,70.16,69.80,71.08,70.95,71.00,70.60,70.88,69.90,69.21,68.71,69.46,68.72,69.49,69.84,70.22,71.22,71.02,70.88,71.07,69.73,69.96,69.55,69.37,68.66,68.79,69.87,70.54,70.75,71.15,71.21,71.32,70.84,69.70,69.30,69.00,69.02,69.20,69.78,69.80,70.72,70.54,70.89,70.98,70.64,70.03,69.43,68.98,69.13,69.33,68.76,69.65,70.10,71.02,71.13,71.04,71.24,70.63,70.38,69.22,68.90,69.23,68.72,68.97,69.60,69.82,70.64,70.49,71.17,71.16,70.05,69.50,69.19,69.47,69.17,68.84,69.74,69.93,70.40,70.85,70.64,70.97,70.91,70.19,70.07,69.28,68.67,69.55,69.24,69.40,70.32,70.43,70.93,70.94,71.23,70.00,69.59,69.25,69.24,68.64,69.30,69.62,70.28,70.20,70.80,70.88,70.61,70.14,70.57,69.60,68.91,69.48,68.95,68.91,70.08,69.78,70.29,70.49,70.85,70.56,70.07,70.23,69.44,68.99,68.96,69.43,69.88,70.06,70.11,70.96,71.39,70.69,71.02,70.20,69.75,69.41,69.37,69.28,69.20,70.09,70.26,70.52,71.22,71.18,71.04,70.98,70.47,69.89,68.96,69.05,69.11,69.00,69.76,70.41,71.12,70.90,71.18,71.08,70.51,70.10,69.57,69.32,68.54,69.58,69.60,70.02,70.09,71.08,70.98,71.04,70.73,69.78,70.02,69.58,69.41,69.11,68.98,69.73,70.76,70.41,70.89,70.79,70.77,70.74,69.81,69.38,69.41,68.88,68.87,70.02,69.65,70.60,70.95,70.49,70.41,70.87,70.38,69.48,69.17,69.22,69.23,69.00,70.05,70.41,70.97,70.52,70.56,71.06,70.55,69.65,69.18,68.71,68.90,69.58,69.91,69.82,70.18,70.98,70.76,71.21,70.93,70.13,69.50,68.99,68.56,68.72,69.73,69.40,70.46,70.23,70.80,71.09,70.51,70.80,69.66,70.01,68.92,68.75,68.70,69.13,70.00,70.54,71.05,71.16,71.20,70.87,70.41,69.34,69.45,68.80,68.84,69.41,69.21,70.34,70.57,70.93,71.08,70.70,70.73,69.71,69.24,69.19,69.38,69.39,69.41,70.04,70.10,70.34,70.98,70.78,70.83,70.36,69.78,69.16,68.97,68.91,69.12,69.51,69.90,70.26,70.42,70.86,70.65,70.76,70.31,69.66,69.47,69.25,69.50,69.27,70.17,70.04,70.62,70.95,71.14,70.69,70.51,70.40,69.10,69.29,68.85,69.18,69.50,70.27,69.94,70.58,71.13,70.97,71.05,69.96,70.18,69.03,69.39,69.23,69.22,69.99,69.68,70.27,71.12,71.19,70.76,70.54,70.23,70.00,69.35,68.79,69.36,69.09,69.38,70.36,70.34,70.64,71.35,70.97,70.51,69.71,68.84,69.15,69.04,68.79,69.65,69.98,70.27,70.77,71.12,71.02,70.73,70.09,69.35,69.51,68.89,69.27,69.18,69.32,69.91,70.74,71.23,70.68,70.29,69.89,69.49,69.61,68.89,68.56,69.16,69.51,70.05,70.45,70.50,70.78,71.22,70.77,70.19,69.81,69.06,68.58,69.54,69.36,69.25,70.60,70.20,70.82,70.97,70.85,70.62,70.08,69.47,68.65,68.63,69.62,69.18,69.81,70.55,70.92,70.61,70.97,71.08,70.03,70.03,69.75,68.80,68.79,69.20,70.00,70.57,70.37,71.18,71.18,70.77,70.21,70.13,69.11,68.86,68.62,69.16,68.94,69.57,70.48,70.70,70.56,71.13,70.55,70.58,69.38,69.80,68.59,68.61,69.23,69.89,70.54,70.32,70.75,71.26,70.85,70.75,70.20,69.73,69.44,68.55,68.82,69.10,69.89,70.47,70.85,70.83,70.68,70.45,70.46,69.48,69.62,68.74,68.56,69.35,69.19,70.49,70.50,70.98,71.40,70.40,70.65,70.32,69.61,68.78,68.96,69.08,69.61,69.33,70.20,71.16,70.91,70.80,70.71,70.61,69.59,69.10,68.98,69.45,69.62,69.26,69.55,70.08,70.85,70.65,70.93,70.22,70.50,69.54,69.19,68.86,69.26,69.36,70.07,70.45,70.97,71.12,70.87,71.24,70.53,69.81,69.52,69.09,68.91,68.86,69.03,69.83,70.37,70.57,70.58,70.65,70.96,70.25,69.90,69.67,68.80,69.24,69.01,69.52,69.71,70.54,70.63,71.28,70.83,69.99,69.78,69.70,69.10,68.70,69.56,69.03,70.14,70.78,70.41,71.07,70.52,70.56,70.08,69.81,69.68,69.41,69.24,69.03,69.88,70.19,70.07,70.41,70.64,71.14,70.10,70.10
离心机电流基础数据:
990.94,1003.58,1003.59,1008.69,997.67,1000.39,1006.62,990.69,991.07,1000.59,1003.42,990.15,997.67,991.34,998.35,1003.74,1001.78,1008.61,1006.92,1000.54,991.84,1003.08,998.32,1004.02,1008.21,1005.24,995.25,990.95,1004.72,996.56,1002.65,1005.13,1009.82,997.31,994.94,1009.65,1004.45,1005.07,1003.03,991.45,1002.63,1007.69,995.45,998.73,1005.33,999.55,994.76,995.50,997.19,993.33,999.73,1007.95,1008.18,991.21,1008.09,1000.09,1000.33,996.38,1009.73,999.88,995.32,991.81,1008.96,991.47,1000.01,997.68,995.54,1008.28,1000.59,999.29,1008.82,991.00,1005.23,1005.40,1006.56,992.51,990.32,1003.77,1007.36,1002.59,1004.72,1004.51,1009.99,1007.77,994.66,996.13,997.02,1000.27,1001.82,1006.92,998.24,1006.83,995.39,998.31,1000.75,999.36,995.74,993.57,993.07,1001.43,1006.05,990.66,1000.69,999.97,1009.11,1004.97,1001.09,1007.81,1002.50,1006.84,993.20,994.26,1004.29,992.61,991.82,995.49,990.06,998.29,990.54,1004.20,1008.76,994.80,993.62,996.35,1007.74,1003.04,993.01,1003.63,997.72,997.75,999.99,992.95,1001.74,1006.91,1001.80,1009.11,1001.12,992.96,1009.67,998.18,992.84,1001.30,995.04,999.77,999.28,1009.22,992.52,994.00,996.38,1002.59,992.53,1003.03,1002.43,1006.06,994.96,999.53,997.79,994.07,990.57,1008.03,998.53,992.84,1008.95,998.21,992.62,1007.71,991.84,993.24,991.42,997.31,995.06,992.70,1005.66,999.11,996.99,999.05,1006.18,1008.63,1003.03,994.30,1003.59,1008.18,995.00,1007.22,999.43,1000.12,1002.01,1006.35,1005.12,999.24,1009.03,1002.65,998.79,1006.49,1003.78,1004.04,1009.74,1009.09,1007.03,995.79,1000.75,1000.29,992.07,998.28,1001.53,1007.53,998.80,1004.59,1007.39,1004.31,1006.01,1004.13,1004.83,990.38,1007.72,1000.50,999.27,991.30,1004.27,999.78,1003.35,1003.64,993.99,1008.33,1007.32,1007.80,1000.88,992.78,999.01,1009.79,994.31,998.92,996.31,1000.29,1007.63,998.79,999.35,1006.13,997.30,994.23,1009.98,993.07,1002.61,1002.33,990.01,990.02,1005.47,1004.55,996.38,998.35,1003.65,1003.61,994.11,1006.73,1004.18,1006.57,991.89,991.63,1005.28,1002.59,994.28,994.27,991.62,997.78,1009.04,1008.95,997.80,995.38,1003.84,995.68,1005.54,1005.68,998.45,995.64,993.88,990.23,993.84,1009.66,994.88,1006.39,992.73,997.96,1002.02,993.54,1006.57,993.15,1009.76,995.14,994.67,992.03,994.39,1002.69,1003.92,1005.90,1003.92,1005.06,1003.39,1002.67,991.13,1001.96,994.54,996.38,1004.00,992.35,1005.25,1000.52,1001.08,1001.76,996.59,1004.06,992.86,993.23,999.71,1007.20,1006.27,1001.14,1004.78,996.32,992.71,1000.57,996.21,1001.76,1000.36,998.62,995.18,997.40,997.86,998.94,999.52,997.76,995.59,991.57,997.39,995.08,1003.44,1003.52,1000.28,1004.57,1004.42,1008.90,999.21,1008.80,996.43,999.21,1000.34,1003.23,998.04,1002.11,1009.73,993.01,1003.40,996.88,1000.83,1000.46,1006.58,990.30,995.48,1002.86,1000.92,1008.36,995.33,1009.40,994.93,1006.88,1003.88,999.12,1006.34,990.44,993.21,1004.14,1004.16,998.73,1001.65,1005.03,1009.83,1003.91,995.59,1005.08,993.42,990.09,999.91,991.60,993.26,1008.07,1005.66,1004.93,998.73,990.13,1001.70,1000.37,991.34,1000.88,997.79,994.32,997.72,1002.54,1003.18,1004.19,1000.77,995.61,1006.32,997.44,1003.72,996.20,990.19,992.08,1000.42,1005.52,994.41,991.11,991.41,993.21,1004.48,995.94,991.01,999.56,999.14,1000.40,998.93,993.01,995.72,1006.67,1003.91,1001.56,1003.62,996.62,991.15,1009.74,1000.85,990.03,1007.12,990.59,997.55,999.79,1001.52,1004.78,1003.59,1000.73,990.71,992.45,1009.47,993.77,997.03,1002.28,1002.15,992.52,1001.06,1009.08,997.14,1006.76,1009.49,995.18,995.03,998.49,1006.26,1007.96,994.89,1005.21,1003.90,999.04,995.27,1003.31,992.33,994.19,992.27,1000.94,990.12,993.52,1001.99,998.64,991.65,1003.75,997.51,1006.72,992.47,1009.47,990.59,991.61,999.88,1005.39,1008.68,995.00,997.19,1005.38,1000.00,1004.99,1003.44,1003.63,1005.14,990.73,994.61,994.43,1001.25,1003.05,1002.33,997.43,994.50,994.67,1003.06,993.32,1004.88,993.20,990.95,1003.24,992.50,1008.98,999.68,1002.42,1008.28,990.36,1001.87,1004.44,999.93,991.07,998.83,1000.38,1005.44,991.31,998.86,1009.54,999.35,996.58,998.92,1004.87,994.11,993.43,997.45,1008.79,1009.30,995.10,991.41,992.48,1000.53,993.20,1000.35,992.10,1006.83,997.37,998.48,996.54,1004.27,1001.54,1007.44,1005.16,1006.73,1004.00,997.78,1008.70,1002.11,997.24,1000.79,999.10,998.03,994.81,991.66,998.43,999.45,995.80,992.10,994.33,1006.04,1000.55,1003.38,1007.27,994.88,1004.23,995.27,997.66,991.62,999.20,994.66,1005.91,999.83,990.06,995.32,1003.29,998.50,993.74,1009.27,992.68,1005.92,1008.92,993.42,1002.12,991.28,996.95,995.85,1000.19,1006.52,1006.69,1004.53,996.59,1006.04,1002.64,990.91,990.83,993.07,1005.34,991.23,1000.39
步骤S102:计算离心机电流平均值,对离心机电流平均值大小划分区间,依据该区间存储步骤S101切割的输出管线压力的历史数据,该数据作为拟合用的基础数据。然后再次重复步骤S101,获得描述堵料情况类似步骤S101所有数据。
把离心机电流平均值划分为区间一[0,750),区间二[750,850),区间三[850,950),区间三[950,1050),区间四[1050,1150)。
把离心机电流基础数据作为yi代入如下公式:
其中:为离心机电流基础平均值,把该当前获得的输出管线压力历史数据存储为离心机电流平均值在区间三[950,1050)上的基础数据。
步骤二:利用拟合公式实时计算当前数据与基础数据的相似度,当相似度大于预设值时,执行阀门切换操作。具体过程如下:
步骤S201:通过PLC或DCS平台获取从当前时刻起向前10分钟的输送管线压力和离心机电流当前数据。
例如2021/12/10 11:15:00所获得的数据如下:
输送管线压力当前数据:
68.19,70.97,71.39,72.86,71.00,71.69,72.82,69.27,68.82,70.13,70.19,67.22,68.67,67.62,69.45,71.05,71.14,72.84,72.59,71.13,68.98,70.69,69.20,69.94,70.59,70.09,68.42,68.06,71.35,70.17,71.63,72.11,72.76,69.79,68.77,71.22,69.87,69.93,69.73,67.84,70.61,72.14,70.06,70.85,72.04,70.51,69.03,68.64,68.56,67.58,68.91,70.87,71.40,68.55,72.40,71.08,71.14,70.11,72.33,69.82,68.40,67.36,70.69,67.37,69.48,69.54,69.64,72.59,71.22,70.86,72.42,68.35,70.66,70.24,70.23,67.44,67.29,70.45,71.71,71.25,71.98,71.99,72.88,72.01,68.85,68.62,68.43,68.95,69.40,70.79,69.58,71.83,69.97,70.75,71.18,70.59,69.37,68.39,67.83,69.23,70.13,67.31,69.76,70.16,72.49,72.00,71.32,72.48,71.02,71.36,68.10,67.92,69.76,67.52,67.71,68.96,68.41,70.50,69.19,71.89,72.52,69.26,68.47,68.54,70.51,69.52,67.73,70.28,69.64,70.16,70.98,69.69,71.31,71.96,70.42,71.35,69.33,67.50,70.91,68.93,68.35,70.59,69.80,71.02,70.93,72.66,68.87,68.62,68.60,69.50,67.41,69.69,69.98,71.24,69.54,70.85,70.66,69.81,68.76,71.74,69.30,67.72,70.71,68.59,67.76,71.26,68.63,69.39,69.33,70.55,69.88,68.97,71.03,69.20,68.42,68.71,70.28,71.15,70.56,69.35,71.62,72.73,70.02,72.14,70.09,69.68,69.60,70.20,69.95,69.04,71.45,70.72,70.44,72.31,71.85,71.72,72.45,71.79,70.85,68.21,69.05,69.07,67.78,69.53,70.72,72.36,70.84,71.97,72.23,71.14,70.93,70.08,69.92,66.99,70.68,69.68,69.97,68.89,71.84,71.06,71.62,71.29,68.84,71.17,70.56,70.46,69.16,67.86,69.61,72.31,69.67,70.85,70.33,70.86,71.87,69.56,69.18,70.21,68.36,67.94,71.51,68.66,71.09,71.42,69.10,68.99,71.72,71.02,68.85,68.81,69.64,69.68,68.07,71.08,71.11,72.07,69.43,69.41,71.91,70.93,68.73,68.22,67.33,68.45,70.86,71.23,69.53,69.58,71.68,70.23,72.12,71.82,69.88,68.77,67.96,66.97,67.70,71.13,68.64,71.49,69.25,70.62,71.50,69.61,71.80,68.58,71.38,68.07,67.83,67.43,68.26,70.44,71.22,72.05,71.87,72.05,71.42,70.79,67.94,69.63,67.86,68.19,69.95,68.06,71.19,70.75,71.21,71.45,70.26,71.36,68.59,68.14,69.02,70.34,70.24,69.55,70.78,69.63,69.36,71.19,70.31,71.15,70.40,69.51,68.33,68.45,68.48,68.89,69.43,69.61,69.70,69.27,70.58,69.99,71.30,70.80,69.61,70.04,69.79,70.74,69.11,71.51,69.58,70.61,71.12,71.73,70.45,70.82,71.80,67.95,69.68,68.27,69.23,69.55,71.31,68.58,70.02,71.67,71.19,72.34,69.23,71.50,68.16,70.30,69.72,69.04,70.95,68.31,69.36,71.86,71.92,70.63,70.79,70.94,71.38,69.82,68.02,70.04,68.08,67.93,70.44,69.20,69.74,72.65,71.86,71.23,69.44,67.25,69.28,69.00,67.43,69.79,69.71,69.52,70.55,71.61,71.57,71.37,70.16,68.59,70.34,68.39,69.74,68.58,67.88,68.80,70.92,72.18,69.94,69.00,68.59,68.41,70.17,68.15,67.11,69.03,69.37,70.16,70.38,69.57,70.25,72.30,71.38,70.39,70.26,68.44,67.14,70.92,69.45,67.78,71.74,68.90,70.57,71.03,71.13,71.33,70.55,69.48,67.14,67.39,70.97,68.23,69.41,70.99,71.36,69.60,71.21,72.47,69.58,70.96,71.06,67.96,67.95,68.93,70.95,71.84,69.71,72.08,71.87,70.68,69.50,70.57,67.86,67.86,67.35,69.23,67.44,68.64,70.87,70.62,69.42,71.78,70.21,71.56,68.17,71.10,67.06,67.25,69.15,70.71,71.91,69.67,70.45,72.18,70.92,71.51,70.67,70.18,70.09,67.04,67.93,68.24,70.11,71.01,71.31,70.57,69.95,69.70,70.90,68.41,70.24,67.60,67.10,69.78,68.06,71.90,70.55,71.46,72.76,69.03,70.95,70.94,69.51,67.32,68.67,69.05,70.38,68.05,70.11,72.71,70.94,70.39,70.60,71.33,68.64,68.00,68.48,70.66,70.95,68.52,68.31,69.05,71.05,69.74,71.06,69.06,71.49,69.06,68.84,68.23,69.80,69.55,71.21,71.30,72.09,71.84,70.64,72.60,70.85,69.34,69.53,68.84,68.50,68.01,67.76,69.64,70.38,70.06,69.52,69.89,71.90,70.31,70.33,70.65,67.91,69.78,68.25,69.18,68.52,70.53,69.95,72.28,70.87,68.51,69.03,70.10,68.75,67.65,70.87,67.91,71.07,72.21,69.54,71.51,69.30,70.14,69.44,69.76,70.55,70.29,69.82,68.46,70.79,70.65,68.81,69.15,69.72,72.02,68.81,70.11
离心机电流当前数据:
988.22,1004.65,1004.66,1011.30,996.97,1000.50,1008.61,987.90,988.39,1000.77,1004.45,987.20,996.97,988.74,997.85,1004.86,1002.31,1011.19,1009.00,1000.70,989.39,1004.00,997.82,1005.23,1010.67,1006.82,993.82,988.23,1006.14,995.53,1003.45,1006.67,1012.77,996.50,993.42,1012.55,1005.79,1006.59,1003.94,988.89,1003.42,1010.00,994.09,998.35,1006.93,999.42,993.18,994.15,996.34,991.33,999.65,1010.34,1010.64,988.57,1010.52,1000.12,1000.42,995.29,1012.65,999.84,993.92,989.36,1011.64,988.92,1000.02,996.99,994.20,1010.76,1000.77,999.08,1011.47,988.30,1006.80,1007.03,1008.52,990.26,987.41,1004.90,1009.57,1003.37,1006.14,1005.86,1012.99,1010.10,993.06,994.96,996.13,1000.35,1002.37,1009.00,997.71,1008.88,994.00,997.80,1000.97,999.17,994.47,991.64,991.00,1001.86,1007.86,987.86,1000.90,999.96,1011.84,1006.46,1001.42,1010.16,1003.25,1008.89,991.15,992.53,1005.58,990.39,989.37,994.14,987.08,997.77,987.70,1005.46,1011.39,993.24,991.70,995.26,1010.06,1003.95,990.91,1004.72,997.03,997.08,999.99,990.84,1002.27,1008.98,1002.34,1011.84,1001.46,990.85,1012.57,997.63,990.69,1001.69,993.56,999.70,999.06,1011.99,990.28,992.19,995.30,1003.36,990.29,1003.93,1003.16,1007.88,993.44,999.39,997.12,992.28,987.74,1010.44,998.09,990.69,1011.63,997.67,990.41,1010.03,989.40,991.22,988.85,996.50,993.58,990.51,1007.36,998.84,996.09,998.76,1008.03,1011.22,1003.94,992.60,1004.67,1010.63,993.50,1009.38,999.25,1000.15,1002.61,1008.26,1006.65,999.02,1011.74,1003.45,998.42,1008.44,1004.91,1005.26,1012.67,1011.81,1009.13,994.52,1000.97,1000.38,989.69,997.76,1001.99,1009.79,998.44,1005.97,1009.60,1005.61,1007.82,1005.37,1006.28,987.50,1010.04,1000.65,999.05,988.70,1005.55,999.71,1004.36,1004.73,992.19,1010.83,1009.51,1010.14,1001.14,990.62,998.71,1012.72,992.60,998.60,995.21,1000.38,1009.92,998.43,999.16,1007.97,996.49,992.50,1012.98,990.99,1003.39,1003.03,987.02,987.02,1007.11,1005.91,995.30,997.86,1004.74,1004.69,992.34,1008.75,1005.43,1008.55,989.46,989.13,1006.86,1003.37,992.56,992.55,989.11,997.11,1011.76,1011.64,997.14,994.00,1005.00,994.38,1007.20,1007.38,997.98,994.34,992.04,987.29,991.99,1012.56,993.35,1008.31,990.55,997.35,1002.63,991.60,1008.54,991.10,1012.69,993.69,993.07,989.64,992.70,1003.50,1005.10,1007.66,1005.10,1006.58,1004.41,1003.47,988.47,1002.55,992.90,995.29,1005.20,990.05,1006.83,1000.68,1001.40,1002.29,995.57,1005.28,990.72,991.20,999.62,1009.37,1008.14,1001.48,1006.21,995.22,990.52,1000.74,995.08,1002.29,1000.47,998.20,993.73,996.63,997.22,998.62,999.37,997.08,994.26,989.03,996.61,993.60,1004.47,1004.58,1000.36,1005.94,1005.74,1011.56,998.98,1011.44,995.36,998.97,1000.45,1004.20,997.45,1002.75,1012.65,990.91,1004.42,995.94,1001.08,1000.59,1008.56,987.39,994.13,1003.72,1001.20,1010.86,993.93,1012.22,993.42,1008.94,1005.04,998.85,1008.24,987.57,991.18,1005.38,1005.40,998.35,1002.14,1006.54,1012.78,1005.09,994.27,1006.60,991.45,987.11,999.89,989.08,991.24,1010.49,1007.36,1006.41,998.35,987.16,1002.20,1000.48,988.74,1001.14,997.13,992.61,997.03,1003.30,1004.14,1005.44,1001.01,994.29,1008.21,996.67,1004.84,995.06,987.24,989.70,1000.54,1007.17,992.74,988.44,988.84,991.17,1005.82,994.72,988.32,999.42,998.89,1000.52,998.61,990.91,994.43,1008.68,1005.09,1002.02,1004.71,995.61,988.49,1012.66,1001.10,987.04,1009.26,987.76,996.82,999.73,1001.98,1006.21,1004.66,1000.94,987.93,990.19,1012.31,991.90,996.13,1002.97,1002.80,990.27,1001.37,1011.80,996.28,1008.79,1012.33,993.73,993.54,998.03,1008.14,1010.35,993.36,1006.78,1005.07,998.75,993.85,1004.30,990.03,992.45,989.96,1001.22,987.16,991.58,1002.58,998.23,989.15,1004.87,996.76,1008.74,990.21,1012.31,987.77,989.09,999.85,1007.01,1011.28,993.50,996.35,1007.00,1000.00,1006.48,1004.47,1004.72,1006.68,987.95,992.99,992.76,1001.63,1003.97,1003.03,996.66,992.84,993.08,1003.98,991.31,1006.35,991.15,988.24,1004.21,990.25,1011.68,999.59,1003.15,1010.76,987.47,1002.43,1005.77,999.91,988.40,998.48,1000.50,1007.07,988.70,998.51,1012.41,999.16,995.56,998.59,1006.33,992.34,991.46,996.69,1011.43,1012.09,993.63,988.83,990.22,1000.68,991.16,1000.46,989.73,1008.88,996.58,998.02,995.51,1005.55,1002.00,1009.67,1006.71,1008.75,1005.19,997.12,1011.32,1002.75,996.41,1001.03,998.83,997.44,993.25,989.16,997.96,999.28,994.53,989.73,992.63,1007.85,1000.71,1004.39,1009.45,993.34,1005.50,993.86,996.95,989.11,998.95,993.05,1007.68,999.77,987.08,993.92,1004.28,998.05,991.86,1012.05,990.49,1007.69,1011.60,991.45,1002.76,988.66,996.03,994.60,1000.25,1008.47,1008.69,1005.89,995.57,1007.85,1003.43,988.18,988.08,990.99,1006.94,988.61,1000.50
步骤S202:利用拟合公式,根据离心机电流平均值的不同值,分区间进行相似度的计算,然后计算控制器输出波形,周期=fit*10,持续时间60秒。
把离心机电流当前数据作为yi代入如下公式:
其中:为离心机电流当前平均值,可知离心机电流属于区间三,利用区间三上的输送管线压力基础数据进行拟合。
把输送管线压力当前数据作为yi代入如下公式:
把输送管线压力当前数据作为yi、输送管线压力基础数据作为和送管线压力当前数据均值/>代入如下公式:
最后计算出控制器输出波形的周期=fit*10=0.63*10=6.3秒。
步骤S203:根据方波序列的周期和持续时间,控制器产生方波序列,加湿开关阀根据该序列进行开关控制,振打器气源开关阀打开,振打器启动,一直持续到方波序列结束为止。
由步骤S202计算的方波序列的周期6.3秒,方波持续时间60秒,进行加湿器开关阀和振打器气源开关阀的控制,即在方波持续时间60秒内,振打器气源开关阀打开,加湿器开关阀打开6.3秒,关6.3秒,直到方波持续时间结束。
尽管上面已经示出和描述了本发明实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行改动、修改、替换和变型。

Claims (1)

1.一种PVC干燥床粉料输送装置,其特征在于:包括一与PVC粉料输送管线及PVC粉料振动筛相连的输送管线连接管,所述输送管线连接管上设有加湿器,所述加湿器与增湿装置通过加湿气体输送管线及加湿气体控制开关阀相连,于输送管线连接管的一侧设有振打器,所述振打器与仪表气源经振打器气源管线及振打器气源控制开关阀相连,所述加湿气体控制开关阀和振打器气源控制开关阀与控制装置相连;所述加湿器为由空心管构成的圆环,于圆环内侧开设有若干通气孔,所述通气孔设置于输送管线连接管内;所述控制装置为DCS或PLC控制平台;
所述装置的PVC干燥床粉料输送控制方法,包括如下步骤:
步骤一、离线获取描述堵料情况的历史数据组,将该数据组作为拟合模型的基础数据;
步骤二、利用拟合公式实时计算当前数据与基础数据的相似度,当相似度大于预设值时,执行阀门切换操作;
所述步骤一包括:
步骤101):获取输送管线压力和离心机电流的历史数据,当一次输送发生堵料时,从当前时刻起向前切割10分钟历史数据;
步骤102):计算离心机电流平均值,对离心机电流平均值大小划分区间,依据该区间存储上一步骤切割的输出管线压力的历史数据,将该数据作为拟合用的基础数据,然后再次重复步上一步骤,获得描述堵料情况的所有数据;
所述步骤二包括:
步骤201):获取从当前时刻起向前10分钟的输送管线压力和离心机电流当前数据;
步骤202):利用拟合公式,根据离心机电流平均值的不同值,分区间进行相似度的计算,然后计算控制器输出波形,周期=fit*10,持续时间60秒,
(公式1)
fit=1- (公式2)
其中,fit是拟合度,是拟合用的基础数据,/>是当前采集的数据,/>是当前采集的数据平均值;
步骤203):根据方波序列的周期和持续时间,控制器产生方波序列,加湿开关阀根据该序列进行开关控制,振打器气源开关阀打开,振打器启动,一直持续到方波序列结束为止。
CN202111584512.3A 2021-12-23 2021-12-23 一种pvc干燥床粉料输送装置及控制方法 Active CN114229485B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111584512.3A CN114229485B (zh) 2021-12-23 2021-12-23 一种pvc干燥床粉料输送装置及控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111584512.3A CN114229485B (zh) 2021-12-23 2021-12-23 一种pvc干燥床粉料输送装置及控制方法

Publications (2)

Publication Number Publication Date
CN114229485A CN114229485A (zh) 2022-03-25
CN114229485B true CN114229485B (zh) 2024-06-07

Family

ID=80761571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111584512.3A Active CN114229485B (zh) 2021-12-23 2021-12-23 一种pvc干燥床粉料输送装置及控制方法

Country Status (1)

Country Link
CN (1) CN114229485B (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0526808A1 (de) * 1991-08-05 1993-02-10 Siemens Aktiengesellschaft Verfahren und Vorrichtung zum Fördern von Pulver
CN1712119A (zh) * 2005-04-29 2005-12-28 尹贵玉 连续式粉体增湿离心造粒设备及工艺
CN107877728A (zh) * 2017-10-10 2018-04-06 江阴市福诺新型装饰材料有限公司 Pvc地板原料自动配料系统
CN108516163A (zh) * 2018-02-22 2018-09-11 德州实华化工有限公司 一种消除聚氯乙烯粉料静电工艺
CN112115602A (zh) * 2020-09-14 2020-12-22 北京博望华科科技有限公司 磨煤机管路堵塞状态确定方法、装置、存储介质及计算设备
CN112141716A (zh) * 2020-09-09 2020-12-29 厦门钨业股份有限公司 碳酸钴粉料的真空输送系统和方法
CN112431784A (zh) * 2020-12-08 2021-03-02 青岛科创信达科技有限公司 养殖场百叶扇风机系统及其检测、预测方法
CN112939419A (zh) * 2021-01-30 2021-06-11 凤阳凯盛硅材料有限公司 一种提高窑授料机下料稳定性的控制系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238946A1 (de) * 2002-08-24 2004-03-04 Mann + Hummel Protec Gmbh Fördervorrichtung für schüttfähiges Gut

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0526808A1 (de) * 1991-08-05 1993-02-10 Siemens Aktiengesellschaft Verfahren und Vorrichtung zum Fördern von Pulver
CN1712119A (zh) * 2005-04-29 2005-12-28 尹贵玉 连续式粉体增湿离心造粒设备及工艺
CN107877728A (zh) * 2017-10-10 2018-04-06 江阴市福诺新型装饰材料有限公司 Pvc地板原料自动配料系统
CN108516163A (zh) * 2018-02-22 2018-09-11 德州实华化工有限公司 一种消除聚氯乙烯粉料静电工艺
CN112141716A (zh) * 2020-09-09 2020-12-29 厦门钨业股份有限公司 碳酸钴粉料的真空输送系统和方法
CN112115602A (zh) * 2020-09-14 2020-12-22 北京博望华科科技有限公司 磨煤机管路堵塞状态确定方法、装置、存储介质及计算设备
CN112431784A (zh) * 2020-12-08 2021-03-02 青岛科创信达科技有限公司 养殖场百叶扇风机系统及其检测、预测方法
CN112939419A (zh) * 2021-01-30 2021-06-11 凤阳凯盛硅材料有限公司 一种提高窑授料机下料稳定性的控制系统

Also Published As

Publication number Publication date
CN114229485A (zh) 2022-03-25

Similar Documents

Publication Publication Date Title
CN104486180B (zh) 一种bms自动分配从控单元id的方法
CN206963624U (zh) 一种养猪场定时喂料系统
CN114229485B (zh) 一种pvc干燥床粉料输送装置及控制方法
CN107901267A (zh) 一种气路式热切机切粒推力控制系统的控制方法
CN107805914A (zh) 一种洗衣机自动控制方法及系统
CN203698733U (zh) 一种休闲食品装袋装置
CN204335752U (zh) 一种紫菜的成形装置
CN204766560U (zh) 一种自动调节报警式胶囊生产放液装置
CN205738893U (zh) 一种用于竹席编织机的上料装置
CN204057293U (zh) 一种芝麻炒炉的芝麻炒炉喂料装置
CN203393112U (zh) 湿法乙炔下料自动化系统
CN207828196U (zh) 乙炔发生器自动加料控制装置
CN205291400U (zh) 一种自动调节可报警胶囊生产放液装置
CN203754672U (zh) 一种自动化远程控制榨油装置
CN206108426U (zh) 一种pet瓶片自动计量配送系统
CN204232035U (zh) 一种育苗喷雾装置
CN205892155U (zh) 一种用于袋装粉料的连续稳定供料系统
CN206277497U (zh) 一种砂仓自动均匀造浆装置
CN105307303B (zh) 微波加热设备控制装置
CN205971907U (zh) 自动称重装盘控制系统
CN107535166A (zh) 一种水气一体化灌溉系统、智能灌溉方法及循环灌溉方法
CN205291348U (zh) 一种用于胶囊生产的自动放液装置
CN205186582U (zh) 物料自动灌装机
CN217376593U (zh) 一种仿古瓦粉料水分均化存储仓
CN205343619U (zh) 加料仓用自动烘干装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20240511

Address after: 1-14-2, No. 9-11 Nandi Middle Road, Hunnan District, Shenyang City, Liaoning Province, 110000

Applicant after: Shenyang Yucheng Technology Co.,Ltd.

Country or region after: China

Address before: 110000 gate 2, No. 12, Xinming street, high tech Industrial Zone, Hunnan New Area, Shenyang City, Liaoning Province

Applicant before: SHENYANG HUAKONG TECHNOLOGY DEVELOPMENT Co.,Ltd.

Country or region before: China

GR01 Patent grant