CN101229525A - Raymond mill pulverization automatic control method and device - Google Patents
Raymond mill pulverization automatic control method and deviceDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及一种能够实现对粉碎车间雷蒙磨振动给料、粉碎、气流粗分工况进行实时监测、自动优化控制的雷蒙磨粉碎自动控制方法及其装置。The invention relates to an automatic control method and device for Raymond mill crushing that can realize real-time monitoring and automatic optimal control of the working conditions of Raymond mill vibration feeding, crushing, and airflow coarse separation in a crushing workshop.
背景技术Background technique
雷蒙磨是从国外传入的一种制粉磨机，目前国内生产较多，它适用各种矿粉制备、煤粉制备，如生料矿、煤矿、金刚石、碳化硅等材料的细粉加工。雷蒙磨从外形看像一个钢制容器竖立，有进风、出风口，中部有进料口。该机结构主要由主机、分析器、鼓风机、成品旋风分离器、微粉旋风分离器及风管组成。其中，主机由机架、进风蜗壳、铲刀、磨辊、磨环、罩壳组成。Raymond mill is a kind of pulverizing mill imported from abroad. At present, there are many domestic productions. It is suitable for the preparation of various mineral powders and coal powders, such as fine powder of raw material ore, coal mine, diamond, silicon carbide and other materials. processing. Raymond mill looks like an upright steel container from the appearance, with air inlet and outlet, and a material inlet in the middle. The structure of the machine is mainly composed of main engine, analyzer, blower, finished product cyclone separator, fine powder cyclone separator and air duct. Among them, the main engine is composed of a frame, an air inlet volute, a blade, a grinding roller, a grinding ring, and a casing.
工作时，电磁振动给料机将需要粉碎的物料从机罩壳侧面的进料斗加入机内，悬挂在主机梅花架上的磨辊装置绕着垂直轴线公转，同时本身自转，由于旋转时离心力的作用，磨辊向外摆动，紧压于磨环，使铲刀铲起物料送到磨辊与磨环之间，因磨辊的滚动碾压而达到粉碎物料的目的。When working, the electromagnetic vibrating feeder feeds the materials that need to be crushed into the machine from the hopper on the side of the machine casing, and the grinding roller device suspended on the plum blossom frame of the main machine revolves around the vertical axis and at the same time rotates itself, due to the centrifugal force during rotation The grinding roller swings outwards and presses against the grinding ring, so that the blade scoops up the material and sends it between the grinding roller and the grinding ring, and the purpose of crushing the material is achieved due to the rolling and rolling of the grinding roller.
现有的雷蒙磨粉碎生产线给料、粒度分选都是由工人手动操作。由于给料控制器具有非线性、迟滞性，工人在调节给料过程中无法精确控制给料速度。给料速度过慢，则生产效率低下；给料速度过快，则易堵塞设备，造成停机并烧毁电机的故障，影响生产，且大大增加了维护成本。粒度分选亦由工人操作鼓风机、分析机调节来实现，控制精度不高，分选精度低，增加了后续处理的难度。The feeding and particle size sorting of the existing Raymond mill crushing production line are all manually operated by workers. Due to the nonlinearity and hysteresis of the feeding controller, workers cannot accurately control the feeding speed during the feeding process. If the feeding speed is too slow, the production efficiency will be low; if the feeding speed is too fast, it will easily block the equipment, cause shutdown and burn the motor, affect production, and greatly increase maintenance costs. Particle size sorting is also realized by workers operating blowers and analyzing machines. The control accuracy is not high, and the sorting accuracy is low, which increases the difficulty of subsequent processing.
发明内容Contents of the invention
本发明的首要目的是提供一种雷蒙磨粉碎自动控制方法，对设备自动调节，使雷蒙磨工作在最佳负荷状态。本发明的另一目的是克服工人手动操作的不足，提供实施雷蒙磨粉碎自动控制方法的自动控制装置，该装置不仅能实时监测雷蒙磨车间给料、粉碎、气流粗分的工况，而且能根据主机负荷自动调节给料、粉碎，还能根据工艺要求自动调节鼓风机，实现气流粗分自动化。当控制装置出现故障时能根据故障等级自动报警或停车以保护设备。The primary purpose of the present invention is to provide an automatic control method for Raymond mill crushing, which can automatically adjust the equipment to make the Raymond mill work in the optimal load state. Another object of the present invention is to overcome the deficiencies of workers' manual operation, and provide an automatic control device for implementing the automatic control method of Raymond mill pulverization. Moreover, it can automatically adjust the feeding and crushing according to the load of the main machine, and can also automatically adjust the blower according to the process requirements to realize the automation of air coarse separation. When the control device fails, it can automatically alarm or stop according to the fault level to protect the equipment.
本发明采用如下技术方案：The present invention adopts following technical scheme:
一种雷蒙磨粉碎自动控制方法，其特征在于根据自适应控制理论，以电磁振动给料机的给料控制器为对象，构建带史密斯预估器的控制模型，根据雷蒙磨主机负荷，采用最小方差控制方法，确定系统动态模型，预测调节量，对设备自动调节，使雷蒙磨工作在最佳负荷状态，所述自动控制方法具体包括如下步骤：An automatic control method for Raymond mill pulverization is characterized in that according to the adaptive control theory, taking the feeding controller of the electromagnetic vibrating feeder as the object, constructing a control model with a Smith predictor, according to the load of the main machine of the Raymond mill, The minimum variance control method is adopted to determine the dynamic model of the system, predict the adjustment amount, and automatically adjust the equipment to make the Raymond mill work in the optimal load state. The automatic control method specifically includes the following steps:
步骤一：开始，设置工作参数，包括对雷蒙磨主机最佳负荷电流值和雷蒙磨主机电流的偏差允许值的设定；Step 1: Start by setting the working parameters, including the setting of the optimal load current value of the main machine of the Raymond mill and the allowable deviation value of the current of the main machine of the Raymond mill;
步骤二：采集雷蒙磨主机电流，并调理滤波得到主机最终检测电流值；Step 2: Collect the current of the main engine of the Raymond mill, and adjust and filter to obtain the final detection current value of the main engine;
步骤三：计算第一电流偏差值，将步骤一中的最佳负荷电流值与步骤二中滤波得到的检测电流值相减计算出第一电流偏差值；Step 3: Calculate the first current deviation value, and subtract the optimal load current value in
步骤四：将步骤三得到的第一电流偏差值与步骤一中设定的雷蒙磨主机电流的偏差允许值进行比较，如果第一电流偏差值小于偏差允许值，则执行步骤五，否则执行步骤六；Step 4: Compare the first current deviation value obtained in
步骤五：给料控制器保持给料速度不变，返回步骤二；Step 5: The feeding controller keeps the feeding speed unchanged, and returns to
步骤六：参数估算，预估PID控制参数，根据第一电流偏差值采用史密斯预估法预估PID控制参数；Step 6: Parameter estimation, estimating the PID control parameters, and estimating the PID control parameters by using the Smith estimation method according to the first current deviation value;
步骤七：采用最小方差控制算法计算输出，采用最小方差控制算法对经步骤六参数估算得到的的控制参数进行修正，计算输出结果；Step 7: Use the minimum variance control algorithm to calculate the output, use the minimum variance control algorithm to correct the control parameters obtained through the parameter estimation in
步骤八：将步骤七得到的输出结果送到给料控制器；Step 8: Send the output result obtained in
步骤九：给料控制器控制电磁振动给料机增大或减小给料速度；然后返回步骤二。Step 9: The feeding controller controls the electromagnetic vibrating feeder to increase or decrease the feeding speed; then return to
本发明还提供实施所述雷蒙磨粉碎自动控制方法的自动控制装置，其特征在于所述自动控制装置包括电流互感器、电流变送器、可编程逻辑控制器和监控计算机；所述可编程逻辑控制器作为核心控制器，包含模拟量输入模块、CPU模块、模拟量输出模块，所述CPU模块的输入和输出端分别接所述模拟量输入模块和模拟量输出模块的对应端口；所述监控计算机与所述CPU模块连接，用于设置可编程逻辑控制器的工作参数并实时监控雷蒙磨的工作状态；所述电流互感器与雷蒙磨的主机输电线耦合连接，其输出端通过所述电流变送器接所述模拟量输入模块的第一输入端，用于检测主机电流并通过电流变送器调理成标准检测电流信号送入模拟量输入模块供CPU模块处理；所述模拟量输出模块的第一控制输出端接给料控制器，用于根据CPU模块的处理结果控制雷蒙磨电磁振动给料机的给料速度。The present invention also provides an automatic control device for implementing the automatic control method for Raymond mill pulverization, which is characterized in that the automatic control device includes a current transformer, a current transmitter, a programmable logic controller and a monitoring computer; the programmable The logic controller comprises an analog input module, a CPU module, and an analog output module as a core controller, and the input and output terminals of the CPU module are respectively connected to corresponding ports of the analog input module and the analog output module; The monitoring computer is connected with the CPU module, and is used to set the working parameters of the programmable logic controller and monitor the working state of the Raymond mill in real time; The current transmitter is connected to the first input terminal of the analog input module, which is used to detect the current of the main engine and adjust it into a standard detection current signal through the current transmitter and send it to the analog input module for processing by the CPU module; The first control output terminal of the quantity output module is connected to the feeding controller, which is used to control the feeding speed of the Raymond mill electromagnetic vibrating feeder according to the processing results of the CPU module.
优选地，所述自动控制装置还包括气压传感器，所述气压传感器安置在雷蒙磨管道装置内，其输出端接所述模拟量输入模块的第二输入端，用于将气压大小转换为电流信号送入模拟量输入模块供CPU模块处理，所述模拟量输出模块的第二控制输出端接鼓风机变频器，用于根据CPU模块的处理结果控制雷蒙磨鼓风机的风量大小。Preferably, the automatic control device further includes an air pressure sensor, the air pressure sensor is arranged in the Raymond mill pipeline device, and its output terminal is connected to the second input end of the analog input module, for converting the air pressure into an electric current The signal is sent to the analog input module for processing by the CPU module, and the second control output terminal of the analog output module is connected to the blower frequency converter for controlling the air volume of the Raymond mill blower according to the processing result of the CPU module.
进一步，所述可编程逻辑控制器还含有数字量输出模块，所述数字量输出模块的第一控制输出端连接报警器。所述数字量输出模块的第二控制输出端还可以连接控制急停开关的继电器。Further, the programmable logic controller also includes a digital output module, and the first control output terminal of the digital output module is connected to an alarm. The second control output terminal of the digital output module can also be connected with a relay controlling an emergency stop switch.
本发明以可编程逻辑控制器作为核心控制器，通过电流互感器检测主机电流，经电流变送器调理成标准的4～20mA电流，并经滤波器滤波后送入可编程逻辑控制器，可编程逻辑控制器计算出采样值与最佳负荷电流设定值的偏差值，然后根据偏差值和上次的参数进行新的参数估算，并采用最小方差控制算法计算出输出量，可编程逻辑控制器将输出量送到给料控制器，实现对电磁振动给料机的自动调节，保证给料速度使主机工作在最佳负荷状态；同时通过气压传感器检测通风管道内的气压，送入可编程逻辑控制器，由可编程逻辑控制器采用上述自适应PID(比例、积分、微分)算法进行调节，可编程逻辑控制器将输出量送到鼓风机变频器，自动调节鼓风机变频器使鼓风机工作在最佳工况状态附近。The present invention uses a programmable logic controller as the core controller, detects the current of the main engine through a current transformer, regulates it into a standard 4-20mA current through a current transmitter, and sends it to the programmable logic controller after being filtered by a filter. The programmable logic controller calculates the deviation value between the sampling value and the optimal load current setting value, and then estimates the new parameters according to the deviation value and the last parameter, and calculates the output by using the minimum variance control algorithm. The programmable logic control The device sends the output to the feeding controller to realize the automatic adjustment of the electromagnetic vibrating feeder to ensure the feeding speed so that the main engine can work in the best load state; at the same time, the air pressure in the ventilation duct is detected by the air pressure sensor, and it is fed into the programmable The logic controller is adjusted by the programmable logic controller using the above adaptive PID (proportional, integral, differential) algorithm. The programmable logic controller sends the output to the blower inverter, and automatically adjusts the blower inverter to make the blower work at the most Near the best working condition.
监控计算机的监控软件采用iFix组态软件，可以设置相关的工艺参数、指标，实现生成实时、历史数据曲线和报表等功能。可编程逻辑控制器根据监控软件设置的粒度指标进行优化处理，在生产不同粒度等级产品时自动调节鼓风机。The monitoring software of the monitoring computer adopts iFix configuration software, which can set relevant process parameters and indicators, and realize the functions of generating real-time and historical data curves and reports. The programmable logic controller performs optimization processing according to the granularity index set by the monitoring software, and automatically adjusts the blower when producing products with different granularity levels.
本发明的有益效果在于：采用自适应控制方法进行调控，以PLC为控制核心，整个生产过程无需人工操作，实现了给料、粉碎、气流粗分的全自动调节，节约了能耗，大大减少了设备故障率，增加了生产效益；通过监控计算机进行实时监控，随时可以修改PLC的工作参数、指标参数，提高了生产效率。同时，本发明的控制装置以PLC为控制核心，通过PLC强大的扩展功能，能同时实现对多台雷蒙磨生产过程的自动控制，大大提高了生产效率，扩大了应用范围。本发明有利于降低企业发展扩建、维护和更新的费用，提高了经济效益，同时避免了工人在恶劣的生产现场人工调节，大大降低了工人的劳动强度，改善了劳动环境。The beneficial effect of the present invention is that: the self-adaptive control method is adopted for regulation and control, with PLC as the control core, the entire production process does not need manual operation, and the automatic adjustment of feeding, crushing, and coarse airflow is realized, which saves energy consumption and greatly reduces The equipment failure rate is reduced, and the production efficiency is increased; the real-time monitoring is carried out through the monitoring computer, and the working parameters and index parameters of the PLC can be modified at any time, which improves the production efficiency. At the same time, the control device of the present invention takes PLC as the control core, and through the powerful expansion function of PLC, it can realize the automatic control of the production process of multiple Raymond mills at the same time, greatly improving the production efficiency and expanding the application range. The invention is beneficial to reduce the cost of enterprise development, expansion, maintenance and renewal, improves economic benefits, avoids manual adjustment of workers in harsh production sites, greatly reduces the labor intensity of workers, and improves the working environment.
附图说明Description of drawings
下面结合附图和具体实施方式对本发明作进一步的阐述。The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
图1是雷蒙磨及其配套设备示意图；Figure 1 is a schematic diagram of Raymond mill and its supporting equipment;
图2是雷蒙磨粉碎自动控制方法流程图；Fig. 2 is the flow chart of Raymond mill pulverizing automatic control method;
图3是雷蒙磨粉碎自动控制装置结构框图；Fig. 3 is a structural block diagram of the Raymond mill pulverizing automatic control device;
图4是PLC各模块的连线示意图。Figure 4 is a schematic diagram of the connection of each module of the PLC.
图1中：1、颚式破碎机；2、畚斗提升机；3、电磁振动给料机；4、传动装置；5、主机；6、分析机；7、管道装置；8、鼓风机；9、储料斗；10、大旋风收集器；11、回风管；12、出粉管In Figure 1: 1. Jaw crusher; 2. Bucket elevator; 3. Electromagnetic vibrating feeder; 4. Transmission device; , storage hopper; 10, large cyclone collector; 11, return air pipe; 12, powder outlet pipe
具体实施方式Detailed ways
在图1中，经颚式破碎机1破碎至一定大小的粒度的块状物料经整形、In Fig. 1, the block material crushed to a certain size by the
水洗、烘干、磁选除铁后得到的粒度砂(直径＜20mm)，由畚斗提升机2将物料垂直输送到储料斗9，再由电磁振动给料机3将粒度砂定量、均匀、连续地送入主机5内，进行研磨，研磨后的粉体被鼓风机8鼓出，经置于主机5上方的分析机6进行分级。细度合乎规格的粉，随风流进入大旋风收集器10，收集后经出粉管12排出即为成品。风流由大旋风收集器10上端的回风管11回到鼓风机8，整个风路系统是密闭循环的并且是在负压状态下流动的。The particle size sand (diameter<20mm) obtained after water washing, drying, and magnetic separation and iron removal is vertically transported to the
如图2所示，一种雷蒙磨粉碎自动控制方法，其特征在于根据自适应控制理论，以电磁振动给料机的给料控制器为对象，构建带史密斯预估器的控制模型，根据雷蒙磨主机负荷，采用最小方差控制方法，确定系统动态模型，预测调节量，对设备自动调节，使雷蒙磨工作在最佳负荷状态，其中，所述电磁振动给料机用于将待粉碎料定量、均匀、连续地送入雷蒙磨的主机内，所述自动控制方法具体包括如下步骤：As shown in Figure 2, an automatic control method for Raymond mill pulverization is characterized in that according to the adaptive control theory, the feeding controller of the electromagnetic vibrating feeder is used as the object, and the control model with Smith predictor is constructed. The load of the main machine of the Raymond mill adopts the minimum variance control method to determine the dynamic model of the system, predict the adjustment amount, and automatically adjust the equipment to make the Raymond mill work at the optimal load state. The electromagnetic vibrating feeder is used to The pulverized material is quantitatively, uniformly and continuously fed into the main machine of the Raymond Mill. The automatic control method specifically includes the following steps:
步骤一：开始，设置工作参数，包括对雷蒙磨主机最佳负荷电流值和雷蒙磨主机电流的偏差允许值的设定；Step 1: Start by setting the working parameters, including the setting of the optimal load current value of the main machine of the Raymond mill and the allowable deviation value of the current of the main machine of the Raymond mill;
步骤二：采集雷蒙磨主机电流，并调理滤波得到主机最终检测电流值；Step 2: Collect the current of the main engine of the Raymond mill, and adjust and filter to obtain the final detection current value of the main engine;
步骤三：计算第一电流偏差值I1，将步骤一中的最佳负荷电流值与步骤二中滤波得到的检测电流值相减计算出第一电流偏差值I1；Step 3: Calculate the first current deviation value I1, and subtract the optimal load current value in
步骤四：将步骤三得到的第一电流偏差值I1与步骤一中设定的雷蒙磨主机电流的偏差允许值进行比较，如果第一电流偏差值I1小于偏差允许值，则执行步骤五，否则执行步骤六；Step 4: Compare the first current deviation value I1 obtained in
步骤五：给料控制器保持给料速度不变，返回步骤二；Step 5: The feeding controller keeps the feeding speed unchanged, and returns to step 2;
步骤六：参数估算，预估PID控制参数，根据第一电流偏差值I1采用史密斯预估法预估PID控制参数；Step 6: parameter estimation, estimating the PID control parameters, and estimating the PID control parameters by using the Smith estimation method according to the first current deviation value I1;
步骤七：采用最小方差控制算法计算输出，采用最小方差控制算法对经步骤六参数估算得到的的控制参数进行修正，计算输出结果；Step 7: Use the minimum variance control algorithm to calculate the output, use the minimum variance control algorithm to correct the control parameters obtained through the parameter estimation in
步骤八：将步骤七得到的输出结果送到给料控制器；Step 8: Send the output result obtained in
步骤九：给料控制器控制电磁振动给料机增大或减小给料速度；然后返回步骤二。Step 9: The feeding controller controls the electromagnetic vibrating feeder to increase or decrease the feeding speed; then return to
如图3所示，雷蒙磨粉碎自动控制装置包括电流互感器、电流变送器、气压传感器、PLC和监控计算机。PLC作为核心控制器，包含模拟量输入模块SM331、CPU模块、模拟量输出模块SM332，CPU模块的输入和输出端分别接模拟量输入模块SM331和模拟量输出模块SM332的对应端口。监控计算机与CPU模块连接，用于设定PLC的工作参数并实时监控雷蒙磨的工作状态。设定的PLC工作参数包括雷蒙磨主机最佳负荷电流值和雷蒙磨主机电流的偏差允许值的设定。电流互感器与图1中雷蒙磨的主机5电源线耦合连接，其输出端通过电流变送器接模拟量输入模块SM331的第一输入端，用于检测主机电流并通过电流变送器调理成标准检测电流信号(4～20mA)送入模拟量输入模块SM331供CPU模块处理。CPU模块的处理过程如下：As shown in Figure 3, the automatic control device of Raymond mill includes current transformer, current transmitter, air pressure sensor, PLC and monitoring computer. As the core controller, PLC includes analog input module SM331, CPU module, and analog output module SM332. The input and output terminals of the CPU module are respectively connected to the corresponding ports of the analog input module SM331 and the analog output module SM332. The monitoring computer is connected with the CPU module to set the working parameters of the PLC and monitor the working status of the Raymond mill in real time. The set PLC working parameters include the setting of the optimal load current value of the Raymond mill main engine and the deviation allowable value of the Raymond mill main engine current. The current transformer is coupled and connected to the
第一步：对调理后的主机标准检测电流信号进行滤波得到主机最终检测电流值；Step 1: Filter the adjusted host standard detection current signal to obtain the final detection current value of the host;
第二步：将设定好的雷蒙磨主机最佳负荷电流值与该主机最终检测电流值相减计算出第一电流偏差值I1；Step 2: Calculate the first current deviation value I1 by subtracting the set optimal load current value of the Raymond mill host from the final detected current value of the host;
第三步：将第一电流偏差值I1与设定的雷蒙磨主机电流的偏差允许值进行比较，如果第一电流偏差值I1小于偏差允许值，则进入下一处理周期，对新检测并调理得到的主机标准检测电流信号从上述第一步重新开始往后执行，否则进入第四步；Step 3: Compare the first current deviation value I1 with the set deviation allowable value of the main machine current of the Raymond mill. If the first current deviation value I1 is less than the deviation allowable value, enter the next processing cycle, and perform new detection and The adjusted host standard detection current signal is executed from the first step above, otherwise enter the fourth step;
第四步：参数估算，根据第一电流偏差值I1采用史密斯预估法预估PID控制参数；The fourth step: parameter estimation, using the Smith estimation method to estimate the PID control parameters according to the first current deviation value I1;
第五步：采用最小方差控制算法对第四步得到的的控制参数进行修正，计算输出结果；The fifth step: use the minimum variance control algorithm to correct the control parameters obtained in the fourth step, and calculate the output result;
第六步：将计算得到的输出结果送到模拟量输出模块SM332，用于改变给料控制器的给料速度。Step 6: Send the calculated output results to the analog output module SM332 to change the feeding speed of the feeding controller.
气压传感器安置在图1中雷蒙磨管道装置7内，其输出端接模拟量输入模块SM331的第二输入端，用于将气压大小转换为电流信号(4～20mA)传给模拟量输入模块SM331供CPU模块处理。模拟量输出模块SM332的第一控制输出端接给料控制器，其第二控制输出端接鼓风机变频器，用于根据CPU模块的处理结果分别控制图1中雷蒙磨电磁振动给料机3的给料速度和雷蒙磨鼓风机8的风量大小。PLC还含有数字量输出模块SM322，数字量输出模块SM322的第一控制输出端连接报警器。当PLC检测到的输入信号存在错误时，发送控制信号到数字量输出模块SM322使报警器报警。数字量输出模块SM322的第二控制输出端连接控制急停开关的继电器，当报警持续一段时间后，PLC发送控制信号到数字量输出模块SM322，控制继电器使急停开关断开，雷蒙磨停止运行。The air pressure sensor is placed in the Raymond
雷蒙磨鼓风机气流大小的控制方法也是通过PLC采用自适应PID算法进行调节，原理与前述给料控制器的控制原理相同，不再累述。The control method of the airflow of the Raymond mill blower is also adjusted through the PLC using the adaptive PID algorithm. The principle is the same as the control principle of the aforementioned feeding controller, so it will not be repeated here.
图4示出本发明中PLC各模块的连线示意图。其中，PLC扩展到两个模拟量输入模块SM331、两个模拟量输出模块SM332和两个数字量输出模块SM322，以实现同时对六台雷蒙磨(设为1~6号)的生产过程进行自动控制。Fig. 4 shows a schematic diagram of the wiring of each module of the PLC in the present invention. Among them, the PLC is extended to two analog input modules SM331, two analog output modules SM332 and two digital output modules SM322, so as to realize simultaneous production process monitoring of six Raymond mills (set as No. 1 to No. 6). automatic control.
图4(a)为第一个模拟量输入模块SM331，其22、23号通道连接到1号主机的电流变送器，其24、25号通道连接到1号管道的气压传感器；其26、27通道连接到2号主机的电流变送器，其28、29号通道连接到2号管道的气压传感器；其32、33号通道连接到3号主机的电流变送器，其34、35号通道连接到3号管道的气压传感器；其36、37号通道连接到4号主机的电流变送器，其38、39号通道连接到4号管道的气压传感器。Figure 4(a) is the first analog input module SM331, its No. 22 and No. 23 channels are connected to the current transmitter of No. 1 main engine, and its No. 24 and No. 25 channels are connected to the air pressure sensor of No. 1 pipeline;
图4(b)为第二个模拟量输入模块SM331，其22、23号通道连接到5号主机的电流变送器，其24、25号通道连接到5号管道的气压传感器；其26、27通道连接到6号主机的电流变送器，其28、29号通道连接到6号管道的气压传感器；其余为预留通道。Figure 4(b) is the second analog input module SM331, its No. 22 and No. 23 channels are connected to the current transmitter of the No. 5 host, and its No. 24 and No. 25 channels are connected to the air pressure sensor of No. 5 pipeline; its No. 26, No. 23
图4(c)为第一个模拟量输出模块SM332，其1号通道接24伏直流电源，20号通道接直流地；其3、6号通道接1号给料机控制器，其7、10号通道接1号鼓风机变频器；其11、14号通道接2号给料机控制器，其15、18号通道接2号鼓风机变频器；其23、26号通道接3号给料机控制器，其27、30号通道接3号鼓风机变频器；其31、34号通道接4号给料机控制器，其35、38号通道接4号鼓风机变频器。Figure 4(c) is the first analog output module SM332, its No. 1 channel is connected to 24V DC power supply, No. 20 channel is connected to DC ground; its No. 3 and No. 6 channels are connected to No. 1 feeder controller, and its No. 7,
图4(d)为第二个模拟量输出模块SM332，其1号通道接24伏直流电源，20号通道接直流地；其3、6号通道接5号给料机控制器，其7、10号通道接5号鼓风机变频器；其11、14号通道接6号给料机控制器，其15、18号通道接6号鼓风机变频器；其余为预留通道。Figure 4(d) is the second analog output module SM332, its No. 1 channel is connected to 24V DC power supply, No. 20 channel is connected to DC ground; its No. 3 and No. 6 channels are connected to No. 5 feeder controller, and its No. 7,
图4(e)为第一个数字量输出模块SM322，其1、11号通道接24伏直流电源，10、20号通道接直流地；其2号通道接1号主机运行指示灯；其3号通道接2号主机运行指示灯；其4号通道接3号主机运行指示灯；其5号通道接4号主机运行指示灯；其6号通道接5号主机运行指示灯；其7号通道接6号主机运行指示灯；其12号通道接1号主机报警指示灯；其13号通道接2号主机报警指示灯；其14号通道接3号主机报警指示灯；其15号通道接4号主机报警指示灯；其16号通道接5号主机报警指示灯；其17号通道接6号主机报警指示灯；其余为预留通道。Figure 4(e) is the first digital output module SM322, its
图4(f)为第二个数字量输出模块SM322，其1、11号通道接24伏直流电源，10、20号通道接直流地；其2号通道接1号主机急停开关；其3号通道接2号主机急停开关；其4号通道接3号主机急停开关；其5号通道接4号主机急停开关；其6号通道接5号主机急停开关；其余为预留通道。Figure 4(f) is the second digital output module SM322, its
CPU模块与上述模拟量输入模块、模拟量输出模块、数字量输出模块通过模块间的背板总线连接。The CPU module is connected to the above-mentioned analog input module, analog output module and digital output module through the backplane bus between the modules.
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