WO2021035893A1 - 一种主井提升系统综合效率多级预警方法 - Google Patents

一种主井提升系统综合效率多级预警方法 Download PDF

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WO2021035893A1
WO2021035893A1 PCT/CN2019/110987 CN2019110987W WO2021035893A1 WO 2021035893 A1 WO2021035893 A1 WO 2021035893A1 CN 2019110987 W CN2019110987 W CN 2019110987W WO 2021035893 A1 WO2021035893 A1 WO 2021035893A1
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main shaft
hoisting system
rate
shaft hoisting
efficiency
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贾顺
袁清和
胡罗克
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18Special adaptations of signalling or alarm devices
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/04Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0639Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • G06Q10/06395Quality analysis or management
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/02Agriculture; Fishing; Forestry; Mining

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  • the invention relates to the field of comprehensive efficiency early warning of the production system of a mining enterprise, in particular to a multi-level early warning method for the comprehensive efficiency of a main shaft raising system.
  • the main shaft hoisting system of a mining enterprise is a key subsystem in the main coal flow transportation system.
  • the comprehensive efficiency control of the main shaft hoisting system affects the overall output efficiency of the main coal flow system of the mining enterprise and the overall output efficiency of the enterprise. Therefore, studying the multi-level early warning method for the comprehensive efficiency of the main shaft improvement system of the mining enterprise is an important task for the overall efficiency control of the main coal flow system and the production system of the mining enterprise.
  • the patent document with the publication number CN108665168A discloses a method for evaluating and monitoring the comprehensive efficiency of the main well hoisting system for lean production, and gives the calculation formulas and calculation formulas of the operating rate, load rate, and quality improvement qualification rate that affect the overall efficiency of the main well hoisting system Obtain the method, and give a simple over-limit alarm to the overall efficiency of the main shaft hoisting system.
  • the above-mentioned documents can realize the ex-post alarm when the overall efficiency of the main shaft hoisting system exceeds the control limit, but cannot realize the pre-warning of the overall efficiency of the main shaft hoisting system.
  • the method of the present invention proposes a multi-level early warning method for the comprehensive efficiency of the main shaft hoisting system, which realizes the operating rate and load rate that affect the overall efficiency of the main shaft hoisting system when the overall efficiency of the main shaft hoisting system does not exceed the limit. Or increase the quality qualification rate to exceed the limit, or the advance warning when the regularity is abnormal.
  • the purpose of the present invention is to provide a method capable of pre-warning the comprehensive efficiency of the main shaft hoisting system of a mining enterprise in advance, so as to realize the real-time effective management and control of the overall efficiency of the main shaft hoisting system.
  • a multi-level early warning method for the comprehensive efficiency of the main shaft hoisting system includes the following steps:
  • Step 1 Set the lower limit of the comprehensive efficiency control of the main shaft hoisting system as The lower limit of the operating rate control of the main shaft hoisting system is The lower limit of the load rate control of the main shaft hoisting system is And the lower limit of the main well hoisting system to improve the quality qualification rate control is
  • Step 2 Set the evaluation cycle time to ⁇ t, and obtain the main shaft hoisting system operating rate ⁇ operating, the load rate ⁇ load and the improvement quality qualification rate ⁇ quality in the evaluation cycle;
  • Step 3 Calculate the overall efficiency of the main shaft hoisting system based on the above-mentioned data of the main shaft hoisting system operating rate, load rate and hoisting quality qualification rate.
  • the calculation model is:
  • ⁇ overall represents the overall efficiency of the main shaft hoisting system
  • ⁇ operating means the operating rate of the main shaft hoisting system
  • ⁇ load means the load rate of the main shaft hoisting system
  • ⁇ quality the pass rate of the main shaft hoisting system
  • Step 4 Compare the overall efficiency of the main shaft hoisting system ⁇ overall , the operating rate of the main shaft hoisting system ⁇ operating, the load rate ⁇ load and the improving quality qualification rate ⁇ quality obtained during the evaluation period with the preset efficiency control lower limits;
  • Step 5 analyze and judge the efficiency of the main shaft hoisting system: if the overall efficiency of the main shaft hoisting system satisfies the relational formula The operating rate, the load rate and the improved quality qualification rate simultaneously satisfy the relationship: with It shows that the overall efficiency, operating rate, load rate and quality qualification rate of the main shaft hoisting system are not lower than the lower limit of control. At this time, it is still necessary to judge the trend of the overall efficiency of the main shaft hoisting system, operating rate, load rate, and improving quality qualification rate.
  • any one of the efficiency indicators shows a continuous seven-point downward trend, indicating that the indicator has an abnormal trend, a level IV warning will be carried out, and the abnormal efficiency indicators will be displayed on the electronic screen; if the overall efficiency of the main well improves the system to meet the relationship
  • one of the indicators among the operating rate, the load rate, and the quality improvement qualification rate is less than or equal to the lower limit of control, that is, it satisfies the following formula: or or It indicates that the main shaft hoisting system is abnormal, a level III warning is given, and the abnormal efficiency index is displayed on the electronic screen; if the overall efficiency of the main shaft hoisting system satisfies the relational formula
  • there are two indicators in the operating rate, load rate, and quality improvement pass rate that are less than or equal to the lower control limit, that is, meet And Or satisfied And Or satisfied And It indicates that the main shaft hoisting system is abnormal, a level II early warning is carried out, and the abnormal indicators are displayed on the electronic screen; if the overall efficiency of the main
  • Step 6 The operator of the main shaft hoisting system performs targeted adjustment and control of the main shaft hoisting system according to the warning level and the electronic screen display prompts in step 5, so that the efficiency of the main shaft hoisting system and the overall efficiency are controlled normally range.
  • step 1 the lower limit of the operating rate of the main shaft hoisting system Load rate control lower limit Improve the lower limit of quality qualification rate It is determined based on the statistical analysis of historical data of the main shaft hoisting system operating rate, load rate and hoisting quality qualification rate and combined with the experience of the main shaft hoisting system operator.
  • step 1 the lower limit of the comprehensive efficiency control of the main shaft hoisting system It is obtained by multiplying the lower limit of power-on rate control, the lower limit of load rate control, and the lower limit of elevating quality qualification rate. Therefore, the lower limit of the comprehensive efficiency control of the main shaft hoisting system is calculated as
  • step 4 the specific method of comparing each efficiency index of the main shaft hoisting system with the corresponding lower limit of control is: the overall efficiency of the main shaft hoisting system ⁇ overall and the lower limit of overall efficiency control In contrast, the operating rate of the main shaft hoisting system ⁇ operating and the operating rate control lower limit In contrast, the load rate ⁇ load of the main shaft hoisting system and the lower limit of the load rate control In contrast, the main well hoisting system improves the quality qualification rate ⁇ quality and the lower limit of the control of the quality qualification rate. Compared.
  • the present invention has the following beneficial effects:
  • the method of the present invention obtains the overall efficiency of the main well hoisting system through real-time acquisition of the operating rate, the load rate and the elevating quality qualification rate that affect the overall efficiency of the main well hoisting system, calculates the overall efficiency of the main well hoisting system, and compares the overall efficiency, operating rate, and load rate of the main well hoisting system Compare and analyze the lower limit of the quality qualification rate improvement, and analyze the overall efficiency of each main well hoisting system and the change trend of the operating rate, load rate and the improvement quality qualification rate, so as to realize the multi-level advancement of the overall efficiency of the main well improvement system. Early warning, to effectively control the overall efficiency of the main shaft hoisting system within the required range.
  • the method of the present invention overcomes the shortcoming that the existing method only performs a post-event over-limit alarm on the overall efficiency of the main well hoisting system, and can realize pre-warning for the overall efficiency of the main well hoisting system.
  • the overall efficiency is not lower than the lower limit of control, the sub-indices are abnormal Or when the trend is abnormal, targeted multi-level early warning can be realized.
  • the method of the invention is scientific and reasonable, and is a very practical and effective pre-warning method for the comprehensive efficiency of the main shaft hoisting system.
  • Figure 1 is a schematic flow diagram of the method of the present invention
  • Figure 2 is a schematic diagram of the system configuration of the method of the present invention.
  • the present invention provides a multi-level early warning method for the comprehensive efficiency of the main shaft hoisting system.
  • the flow diagram of the method of the present invention is shown in Fig. 1.
  • First obtain the main well hoisting system operating rate, load rate and hoisting quality qualification rate in the evaluation period, and then calculate the overall efficiency of the main well hoisting system in the evaluation period.
  • FIG. 2 is a schematic diagram of the system configuration of the method of the present invention.
  • the main shaft hoisting system is equipped with a weight sensor.
  • the weight sensor is used to obtain the actual lifting amount of the single hook of the main shaft hoisting system.
  • the weight sensor is connected to the ZigBee wireless transmission system through the RS-485 interface.
  • the ZigBee wireless transmission system passes RS-485/RS-
  • the 232 interface is connected to the database server.
  • the database server is installed with SQL Server or Oracle server, which is used to store the collected actual hoisting amount of the main shaft hoisting system.
  • the database server communicates with the application server through the switch using the TCP/IP protocol.
  • the application server is used to run the software programs required by the system, and is used to calculate and evaluate the operating rate, load rate, and quality of the main shaft hoisting system according to a certain time period. Qualification rate, calculation and analysis of the overall efficiency of the main shaft hoisting system.
  • the display screen is used to display the early warning level of the main shaft hoisting system and the abnormal efficiency single value and comprehensive efficiency information.
  • the embodiment of the present invention is described by taking a main shaft hoisting system of a mining enterprise as an example, and the evaluation cycle time ⁇ t is set to 3 hours.
  • the method of the present invention is used to perform multi-level early warning of the overall efficiency of the main shaft hoisting system, and the early warning information is displayed on the display screen.
  • the control lower limit of the main shaft hoisting system operating rate, load rate, and lifting quality qualification rate is based on the statistical analysis of historical data of the main shaft hoisting system operating rate, load rate, and lifting quality qualification rate, and combined with the main shaft hoisting system operator. Determined by experience.
  • the lower limit of the operating rate of the main shaft hoisting system is 90.0%
  • the lower limit of the comprehensive efficiency control of the main shaft hoisting system is determined by the formula Calculated. Therefore, the lower limit of the comprehensive efficiency control of the main shaft hoisting system in this embodiment is
  • the main shaft hoisting system operating rate, load rate and hoisting quality qualification rate are obtained every 3 hours.
  • the mining enterprise has carried out lean management for a period of time, and periodically records the data on the operating rate, load rate, and elevating quality qualification rate of the main shaft hoisting system. Taking 8:00-11:00 on a working day as an example, it is obtained that the operating rate of the main shaft hoisting system of the mine is 90.3%, the load rate is 96.1%, and the qualification rate of the hoisting quality is 90.5%.
  • ⁇ overall ⁇ operating ⁇ ⁇ load ⁇ ⁇ quality .
  • ⁇ overall represents the overall efficiency of the main shaft hoisting system
  • ⁇ operating means the operating rate of the main shaft hoisting system
  • ⁇ load means the load rate of the main shaft hoisting system
  • ⁇ quality the pass rate of the main shaft hoisting system.
  • the overall efficiency of the main shaft hoisting system and its sub-efficiencies (operating rate, load rate, and hoisting quality qualification rate) obtained are compared and analyzed with the lower control limit of the corresponding index.
  • the operating rate of the main shaft hoisting system ⁇ operating 90.3% and the operating rate control lower limit
  • the load rate of the main shaft hoisting system ⁇ load 96.1% and the lower limit of the load rate control
  • the overall efficiency of the main shaft improvement system and its sub-efficiencies (operating rate, load rate, and improvement quality qualification rate) and corresponding The lower control limit of the index is compared with the results, and the relationship is satisfied And the operating rate, the load rate and the improved quality qualification rate simultaneously satisfy the relationship: with It shows that the overall efficiency, operating rate, load rate and quality qualification rate of the main shaft hoisting system are not lower than the lower limit of control. At this time, it is still necessary to judge the trend of the overall efficiency of the main shaft hoisting system, operating rate, load rate, and improving quality qualification rate.
  • the index value is displayed on the electronic screen.
  • the main shaft hoisting system is controlled in a targeted manner so that each efficiency single value and comprehensive efficiency are controlled within the normal range
  • the method of the present invention can be used in advance multi-level early warning of the overall efficiency of the main shaft hoisting system of a mining enterprise to realize effective management and control of the overall efficiency of the main shaft hoisting system.
  • the overall efficiency of the main shaft hoisting system does not exceed the limit, but the trend is abnormal, it can also be used Carry out multi-level early warning prompts in advance to ensure the high-efficiency operation of the main shaft hoisting system.

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Abstract

一种主井提升系统综合效率多级预警方法,首先设置主井提升系统开机率、负荷率和提升质量合格率控制下限,进而计算获得主井提升系统综合效率控制下限;接着获取评估周期内的主井提升系统开机率、负荷率、提升质量合格率和综合效率,将获取的各效率与预设的相应效率控制下限进行对比分析,结合各效率的变化趋势,判断是否处于正常状态,若处于非正常状态,则判定属于何种等级异常,给出I到IV级预警提示,并将相应的异常指标显示在显示屏上。使主井提升系统操作者有针对性地调整控制主井提升系统,实现主井提升系统综合效率的事前有效预警。该方法是一种实用有效的主井提升系统综合效率事前多级预警方法。

Description

一种主井提升系统综合效率多级预警方法 技术领域
本发明涉及矿山企业生产系统综合效率预警领域,尤其是一种主井提升系统综合效率多级预警方法。
背景技术
矿山企业主井提升系统是主煤流运输系统中的关键子系统,主井提升系统的综合效率管控影响着矿山企业主煤流系统综合产出效率及企业的整体产出效率。因此,研究矿山企业主井提升系统综合效率多级预警方法是矿山企业主煤流系统及生产系统整体效率管控的重要任务。
专门针对矿山企业主井提升系统综合效率管控方面的研究并不多见。公开号为CN108665168A的专利文献公开了一种精益生产用主井提升系统综合效率评估与监测方法,给出了影响主井提升系统综合效率的开机率、负荷率、提升质量合格率的计算公式及获取方法,并且对主井提升系统综合效率进行简单的超限报警。上述文献能够实现主井提升系统综合效率超过控制界限的事后报警,但是不能实现主井提升系统综合效率的事前预警。因此,迫切需要研究主井提升系统综合效率的事前预警方法。本发明方法则是为了解决上述问题,提出一种主井提升系统综合效率多级预警方法,实现在主井提升系统综合效率没有超限时,但是影响主井提升系统综合效率的开机率、负荷率或提升质量合格率超限,或者出现规律异常时的事前预警。
发明内容
本发明的目的在于提供一种能够对矿山企业主井提升系统综合效率进行事前多级预警的方法,从而实现主井提升系统综合效率的实时有效管控。
一种主井提升系统综合效率多级预警方法,包括如下步骤:
步骤1,设置主井提升系统综合效率控制下限为
Figure PCTCN2019110987-appb-000001
主井提升系统开机率控制下限为
Figure PCTCN2019110987-appb-000002
主井提升系统负荷率控制下限为
Figure PCTCN2019110987-appb-000003
和主井提升系统提升质量合格率控制下限为
Figure PCTCN2019110987-appb-000004
步骤2,评估周期时间设置为Δt,获取评估周期内主井提升系统开机率η operating,负荷率η load和提升质量合格率η quality
步骤3,基于上述的主井提升系统开机率、负荷率和提升质量合格率数据,计算主井提升系统综合效率,其计算模型为:
η overall=η operating×η load×η quality
其中:η overall表示主井提升系统综合效率,η operating表示主井提升系统开机率,η load表示主井提升系统负荷率,η quality主井提升系统提升质量合格率;
步骤4,将评估周期内得到的主井提升系统综合效率η overall、主井提升系统开机率η operating、负荷率η load和提升质量合格率η quality与预先设置的各效率控制下限进行对比;
步骤5,根据上述对比结果,分析判断主井提升系统效率情况:若主井提升系统综合效率满足关系式
Figure PCTCN2019110987-appb-000005
开机率、负荷率和提升质量合格率同时满足关系式:
Figure PCTCN2019110987-appb-000006
Figure PCTCN2019110987-appb-000007
表明主井提升系统综合效率、开机率、负荷率和提升质量合格率都没有低于控制下限,此时仍然需要对主井提升系统综合效率、开机率、负荷率和提升质量合格率进行趋势判断,其中任何一个效率指标出现连续七点下降趋势,表明该指标有趋势异常,则进行IV级预警,并将有异常的效率指标显示在电子屏上;若主井提升系统综合效率满足关系式
Figure PCTCN2019110987-appb-000008
但是开机率、负荷率和提升质量合格率中有一项指标小于等于控制下限,即满足如下关式:
Figure PCTCN2019110987-appb-000009
Figure PCTCN2019110987-appb-000010
Figure PCTCN2019110987-appb-000011
则表明主井提升系统异常,进行III级预警,并将有异常的效率指标显示在电子屏上;若主井提升系统综合效率满足关系式
Figure PCTCN2019110987-appb-000012
但是开机率、负荷率和提升质量合格率中有两项指标小于等于控制下限,即满足
Figure PCTCN2019110987-appb-000013
Figure PCTCN2019110987-appb-000014
或者满足
Figure PCTCN2019110987-appb-000015
Figure PCTCN2019110987-appb-000016
或者满足
Figure PCTCN2019110987-appb-000017
Figure PCTCN2019110987-appb-000018
则表明主井提升系统异常,进行II级预警,并将有异常的指标显示在电子屏上;若主井提升系统综合效率满足关系式
Figure PCTCN2019110987-appb-000019
则表明主井提升系统综合效率超限,进行I级预警,将有异常的主井提升系统综合效率及其异常子效率指标(开机率、负荷率或提升质量合格率)显示在显示 屏上;若无上述四类异常出现,则表明主井提升系统处于正常状态,电子屏上显示正常;
步骤6,主井提升系统操作人员根据步骤5的预警等级及电子屏显示提示,对主井提升系统进行有针对性的调整与控制,使得主井提升系统各效率单值及综合效率控制在正常范围。
在步骤1中,主井提升系统开机率控制下限
Figure PCTCN2019110987-appb-000020
负荷率控制下限
Figure PCTCN2019110987-appb-000021
提升质量合格率控制下限
Figure PCTCN2019110987-appb-000022
根据主井提升系统开机率、负荷率及提升质量合格率的历史数据统计分析并结合主井提升系统操作者的经验确定。
在步骤1中,主井提升系统综合效率控制下限
Figure PCTCN2019110987-appb-000023
是由开机率控制下限、负荷率控制下限、提升质量合格率控制下限相乘得到。因此,主井提升系统综合效率控制下限计算为
Figure PCTCN2019110987-appb-000024
在步骤4中,主井提升系统各效率指标与对应控制下限对比具体方式为:主井提升系统综合效率η overall与综合效率控制下限
Figure PCTCN2019110987-appb-000025
对比,主井提升系统开机率η operating与开机率控制下限
Figure PCTCN2019110987-appb-000026
对比,主井提升系统负荷率η load与负荷率控制下限
Figure PCTCN2019110987-appb-000027
对比,主井提升系统提升质量合格率η quality与提升质量合格率控制下限
Figure PCTCN2019110987-appb-000028
对比。
与现有技术相比,本发明具有如下有益效果:
本发明方法通过对影响主井提升系统综合效率的开机率、负荷率及提升质量合格率进行实时获取,计算得到主井提升系统综合效率,并与主井提升系统综合效率、开机率、负荷率和提升质量合格率的控制下限进行对比分析,同时对各主井提升系统综合效率及开机率、负荷率和提升质量合格率的变化趋势进行分析,从而实现主井提升系统综合效率的事前多级预警,将主井提升系统综合效率有效控制在要求的范围之内。本发明方法克服了已有方法仅仅对主井提升系统综合效率进行事后超限报警的缺陷,对主井提升系统综合效率可以实现事前预警,在综合效率没有低于控制下限时,但是子指标异常或趋势异常时就可以实现有针对性的多级预警。本发明方法科学合理,是一种十分实用有效的主井提升系统综合效率事前预警方法。
附图说明
图1为本发明方法的流程示意图;
图2为本发明方法的系统构成示意图。
具体实施方式
现结合实施例及附图对本发明进行详细解释。
本发明提出一种主井提升系统综合效率多级预警方法。本发明方法的流程示意图如图1所示,首先,获取评估周期内的主井提升系统开机率、负荷率和提升质量合格率,然后计算得到评估周期内的主井提升系统综合效率。分别设置主井提升系统开机率、负荷率和提升质量合格率的控制下限,并根据开机率、负荷率和提升质量合格率控制下限计算得到主井提升系统综合效率控制下限。将获取得到的评估周期内的主井提升系统综合效率、开机率、负荷率和提升质量合格率分别与其相应的控制下限进行对比,同时结合各效率的变化趋势,分析判断主井提升系统综合效率是否处于正常状态,若处于非正常状态,则判定属于何种等级的异常,给出I到IV级预警提示,并将相应的异常指标显示在显示屏上。使主井提升系统操作人员有针对性地调整控制主井提升系统,实现主井提升系统综合效率的事前有效管控。
图2为本发明方法的系统构成示意图。主井提升系统配置有重量传感器,重量传感器用于获取主井提升系统单钩实际提升量,重量传感器通过RS-485接口与ZigBee无线传输系统进行连接,ZigBee无线传输系统通过RS-485/RS-232接口与数据库服务器连接。数据库服务器安装有SQL Server或Oracle服务器,用于存储采集到的主井提升系统单勾实际提升量。数据库服务器通过交换机以TCP/IP协议与应用程序服务器进行通讯,应用程序服务器用于运行系统所需的软件程序,用于按照一定时间周期计算评估主井提升系统的开机率、负荷率、提升质量合格率,并进行主井提升系统综合效率的计算和分析。显示屏用于显示主井提升系统的预警等级以及异常的效率单值和综合效率信息。
本发明实施例以某矿山企业主井提升系统为例进行说明,评估周期时间Δt设置为3小时。采用本发明方法进行主井提升系统综合效率的多级预警,并将预警信息显示在显示屏上。
1.设置主井提升系统综合效率、开机率、负荷率及提升质量合格率控制下限
本发明中主井提升系统开机率、负荷率和提升质量合格率的控制下限是根据主井提升系统开机率、负荷率及提升质量合格率的历史数据统计分析并结合主井提升系统操作者的经验确定。在本实施例中,主井提升系统开机率控制下限
Figure PCTCN2019110987-appb-000029
为90.0%,主井提升系统负荷率控制下限
Figure PCTCN2019110987-appb-000030
为95.0%,主井提升系统提升质量合格率控制下限
Figure PCTCN2019110987-appb-000031
为90.0%。主井提升系统综合效率控制下限由公式
Figure PCTCN2019110987-appb-000032
计算得到。因此,本实施例中主井提升系统综合效率控制下限为
Figure PCTCN2019110987-appb-000033
2.获取主井提升系统开机率、负荷率和提升质量合格率
因为评估周期时间Δt=3小时,每隔3小时获取一次主井提升系统开机率、负荷率和提升质量合格率。该矿山企业已开展精益管理一段时间,对主井提升系统的开机率、负荷率和提升质量合格率数据进行周期性记录。以某工作日的8:00-11:00为例,得到该矿主井提升系统开机率为90.3%,负荷率为96.1%,提升质量合格率为90.5%。
3.获取主井提升系统综合效率
基于上述的主井提升系统开机率、负荷率和提升质量合格率数据,计算主井提升系统综合效率,其计算模型为η overall=η operating×η load×η quality。其中,η overall表示主井提升系统综合效率,η operating表示主井提升系统开机率,η load表示主井提升系统负荷率,η quality主井提升系统提升质量合格率。承接前例,仍以某工作日的8:00-11:00为例,已得到该矿主井提升系统开机率η operating=90.3%,负荷率η load=96.1%,提升质量合格率η quality=90.5%。将上述数据带入公式η overall=η operating×η load×η quality,计算可得该评估周期内主井提升系统综合效率η overall=78.5%。
4.主井提升系统综合效率及其子效率对比
将所得到的主井提升系统综合效率及其子效率(开机率、负荷率和提升质量合格率)与对应指标的控制下限进行对比分析。本实施例中,主井提升系统综合效率、开机率、负荷率和提升质量合格率的控制下限分别为
Figure PCTCN2019110987-appb-000034
Figure PCTCN2019110987-appb-000035
仍以某工作日仍以某工作日的8:00-11:00为例,得到该评估周期内主井提升系统综合效率为η overall=78.5%,开机率为η operating=90.3%,负荷率为η load=96.1%,提升质量合格率为η quality=90.5%。则将主井提升系统综合效率η overall=78.5%与综合效率控制下限
Figure PCTCN2019110987-appb-000036
对比,主井提升系统开机率η operating=90.3%与开机率控制下限
Figure PCTCN2019110987-appb-000037
对比,主井提升系统负荷率η load=96.1%与负荷率控制下限
Figure PCTCN2019110987-appb-000038
对比,主井提升系统提升质量合格率η quality=90.5%与提升质量合格率控制下限
Figure PCTCN2019110987-appb-000039
对比。
5.根据对比结果,分析判断主井提升系统是否存在异常并预警提示
仍以某工作日仍以某工作日的8:00-11:00为例,根据该评估周期内主井提升系统综合效率及其子效率(开机率、负荷率和提升质量合格率)与对应指标的控制下限进行对比结果可知,满足关系式
Figure PCTCN2019110987-appb-000040
且开机率、负荷率和提升质量合格率同时满足关系式:
Figure PCTCN2019110987-appb-000041
Figure PCTCN2019110987-appb-000042
Figure PCTCN2019110987-appb-000043
表明主井提升系统综合效率、开机率、负荷率和提升质量合格率都没有低于控制下限,此时仍然需要对主井提升系统综合效率、开机率、负荷率和提升质量合格率进行趋势判断,判断发现得到的连续七个负荷率数据分别为η load,1=97.1%、η load,2=96.9%、η load,3=96.7%、η load,4=96.6%、η load,5=96.3%、η load,6=96.1%和η load,7=96.0%,则满足如下关系式:η load,1load,2load,3load,4load,5load,6load,7,表明负荷率存在连续下降趋势,则进行IV级预警,并将有异常的连续七个负荷率(η load,1=97.1%、η load,2=96.9%、η load,3=96.7%、η load,4=96.6%、η load,5=96.3%、η load,6=96.1%和η load,7=96.0%)指标值显示在电子屏上。
若以该工作日的14:00-17:00为例,得到主井提升系统开机率η operating=89.7%,负荷率η load=96.0%,提升质量合格率η quality=92.8%。将上述数据带入公式η overall=η operating×η load×η quality,计算可得该评估周 期内主井提升系统综合效率η overall=79.9%。与主井提升系统综合效率控制下限
Figure PCTCN2019110987-appb-000044
开机率控制下限
Figure PCTCN2019110987-appb-000045
负荷率控制下限
Figure PCTCN2019110987-appb-000046
和提升质量合格率控制下限
Figure PCTCN2019110987-appb-000047
对比分析发现,满足关系式
Figure PCTCN2019110987-appb-000048
同时开机率满足关系式
Figure PCTCN2019110987-appb-000049
负荷率和提升质量合格率均大于相应指标的控制下限,进行III级预警,并将有异常的开机率
Figure PCTCN2019110987-appb-000050
指标值显示在电子屏上。
若以该工作日的17:00-20:00为例,得到主井提升系统开机率η operating=89.5%,负荷率η load=94.8%,提升质量合格率η quality=92.8%。将上述数据带入公式η overall=η operating×η load×η quality,计算可得该评估周期内主井提升系统综合效率η overall=78.7%。与主井提升系统综合效率控制下限
Figure PCTCN2019110987-appb-000051
开机率控制下限
Figure PCTCN2019110987-appb-000052
负荷率控制下限
Figure PCTCN2019110987-appb-000053
和提升质量合格率控制下限
Figure PCTCN2019110987-appb-000054
对比分析发现,满足关系式
Figure PCTCN2019110987-appb-000055
同时开机率和负荷率满足关系式
Figure PCTCN2019110987-appb-000056
Figure PCTCN2019110987-appb-000057
提升质量合格率大于相应指标的控制下限,进行II级预警,并将有异常的开机率
Figure PCTCN2019110987-appb-000058
和负荷率
Figure PCTCN2019110987-appb-000059
指标值显示在电子屏上。
若以该工作日的20:00-23:00为例,得到主井提升系统开机率η operating=89.7%,负荷率η load=94.3%,提升质量合格率η quality=90.2%。将上述数据带入公式η overall=η operating×η load×η quality,计算可得该评估周期内主井提升系统综合效率η overall=76.3%。与主井提升系统综合效率控制下限
Figure PCTCN2019110987-appb-000060
开机率控制下限
Figure PCTCN2019110987-appb-000061
负荷率控制下限
Figure PCTCN2019110987-appb-000062
和提升质量合格率控制下限
Figure PCTCN2019110987-appb-000063
对比分析发现,满足关系式
Figure PCTCN2019110987-appb-000064
则表明主井提升系统综合效率超限,进行I级预警,将有异常的主井提升系统综合效率
Figure PCTCN2019110987-appb-000065
及其异常子指标(开机率
Figure PCTCN2019110987-appb-000066
负荷率
Figure PCTCN2019110987-appb-000067
)显示在显示屏上。
6.根据预警提示,有针对性控制主井提升系统使各效率单值及综合效率控制在正常范围内
本发明方法可以用于矿山企业主井提升系统综合效率的事前多级预警,实现主井提升系统综合效率的有效管控,在主井提升系统综合效率没有超限,但是出现趋势异常时,也可以进行事前多级预警提示,从而保障主井提升系统的高效率运转。
最后说明的是,以上实施案例仅用以说明本发明的技术方案而非限制,对本发明的技术方案进行修改或者等同替换,而不脱离本发明方法的宗旨和范围,其均应涵盖在本发明的权利要求范围当中。

Claims (4)

  1. 一种主井提升系统综合效率多级预警方法,其特征在于,包括如下步骤:
    步骤1,设置主井提升系统综合效率控制下限为
    Figure PCTCN2019110987-appb-100001
    主井提升系统开机率控制下限为
    Figure PCTCN2019110987-appb-100002
    主井提升系统负荷率控制下限为
    Figure PCTCN2019110987-appb-100003
    和主井提升系统提升质量合格率控制下限为
    Figure PCTCN2019110987-appb-100004
    步骤2,评估周期时间设置为Δt,获取评估周期内主井提升系统开机率η operating,负荷率η load和提升质量合格率η quality
    步骤3,基于上述的主井提升系统开机率、负荷率和提升质量合格率数据,计算主井提升系统综合效率,其计算模型为:
    η overall=η operating×η load×η quality
    其中:η overall表示主井提升系统综合效率,η operating表示主井提升系统开机率,η load表示主井提升系统负荷率,η quality主井提升系统提升质量合格率;
    步骤4,将评估周期内得到的主井提升系统综合效率η overall、主井提升系统开机率η operating、负荷率η load和提升质量合格率η quality与预先设置的各效率控制下限进行对比;
    步骤5,根据上述对比结果,分析判断主井提升系统效率情况:若主井提升系统综合效率满足关系式
    Figure PCTCN2019110987-appb-100005
    开机率、负荷率和提升质量合格率同时满足关系式:
    Figure PCTCN2019110987-appb-100006
    Figure PCTCN2019110987-appb-100007
    表明主井提升系统综合效率、开机率、负荷率和提升质量合格率都没有低于控制下限,此时仍然需要对主井提升系统综合效率、开机率、负荷率和提升质量合格率进行趋势判断,其中任何一个效率指标出现连续七点下降趋势,表明该指标有趋势异常,则进行IV级预警,并将有异常的效率指标显示在电子屏上;若主井提升系统综合效率满足关系式
    Figure PCTCN2019110987-appb-100008
    但是开机率、负荷率和提升质量合格率中有一项指标小于等于控制下限,即满足如下关式:
    Figure PCTCN2019110987-appb-100009
    Figure PCTCN2019110987-appb-100010
    Figure PCTCN2019110987-appb-100011
    则表明主井提升系统异常,进行III级预警,并将有异常的效率指标显示在电子屏上;若主井提升系统综合效率满足关系式
    Figure PCTCN2019110987-appb-100012
    但是开机率、负荷 率和提升质量合格率中有两项指标小于等于控制下限,即满足
    Figure PCTCN2019110987-appb-100013
    Figure PCTCN2019110987-appb-100014
    或者满足
    Figure PCTCN2019110987-appb-100015
    Figure PCTCN2019110987-appb-100016
    或者满足
    Figure PCTCN2019110987-appb-100017
    Figure PCTCN2019110987-appb-100018
    则表明主井提升系统异常,进行II级预警,并将有异常的指标显示在电子屏上;若主井提升系统综合效率满足关系式
    Figure PCTCN2019110987-appb-100019
    则表明主井提升系统综合效率超限,进行I级预警,将有异常的主井提升系统综合效率及其异常子效率指标(开机率、负荷率或提升质量合格率)显示在显示屏上;若无上述四类异常出现,则表明主井提升系统处于正常状态,电子屏上显示正常;
    步骤6,主井提升系统操作人员根据步骤5的预警等级及电子屏显示提示,对主井提升系统进行有针对性的调整与控制,使得主井提升系统各效率单值及综合效率控制在正常范围。
  2. 如权利要求1所述一种主井提升系统综合效率多级预警方法,其特征在于,在步骤1中,主井提升系统开机率控制下限
    Figure PCTCN2019110987-appb-100020
    负荷率控制下限
    Figure PCTCN2019110987-appb-100021
    提升质量合格率控制下限
    Figure PCTCN2019110987-appb-100022
    根据主井提升系统开机率、负荷率及提升质量合格率的历史数据统计分析并结合主井提升系统操作者的经验确定。
  3. 如权利要求1所述一种主井提升系统综合效率多级预警方法,其特征在于,在步骤1中,主井提升系统综合效率控制下限
    Figure PCTCN2019110987-appb-100023
    是由开机率控制下限、负荷率控制下限、提升质量合格率控制下限相乘得到。因此,主井提升系统综合效率控制下限计算为
    Figure PCTCN2019110987-appb-100024
  4. 如权利要求1所述一种主井提升系统综合效率多级预警方法,其特征在于,在步骤4中,主井提升系统各效率指标与对应控制下限对比具体方式为:主井提升系统综合效率η overall与综合效率控制下限
    Figure PCTCN2019110987-appb-100025
    对比,主井提升系统开机率η operating与开机率控制下限
    Figure PCTCN2019110987-appb-100026
    对比,主井提升系统负荷率η load与负荷率控制下限
    Figure PCTCN2019110987-appb-100027
    对比,主井提升系统提升质量合格率η quality与提升质量合格率控制下限
    Figure PCTCN2019110987-appb-100028
    对比。
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