CN109225661B - Flotation machine process control device and control method - Google Patents
Flotation machine process control device and control method Download PDFInfo
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- 238000005188 flotation Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004886 process control Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000005457 optimization Methods 0.000 claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000008396 flotation agent Substances 0.000 claims description 4
- 238000013386 optimize process Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 235000011963 major mineral Nutrition 0.000 description 1
- 239000011738 major mineral Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- -1 processing capacity Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
Description
技术领域Technical field
本发明涉及一种浮选机过程控制装置及控制方法，尤其指一种浮选机搅拌工艺过程参数根据不同工况呈非线性变化的过程控制装置及控制方法。The invention relates to a flotation machine process control device and a control method, in particular to a process control device and a control method in which the stirring process parameters of the flotation machine change non-linearly according to different working conditions.
背景技术Background technique
浮选是一门分选矿物的技术，也是一种主要的选矿方法。其主要原理是依据矿物表面物理化学性质的不同，在气—液—固三相界面上分选矿物的科学技术。浮选工艺过程是浮选前的矿石原料准备至产出精矿的一系列连续过程。在浮选工艺过程中，影响浮选过程的工艺因素很多，但较为重要的有：矿石的入选粒度、矿浆的入选浓度、药剂制度、矿浆浓度、矿浆温度、水质、浮选时间、浮选工艺流程等。浮选生产过程的自动控制对于保障产品质量指标，提高选矿效益具有十分重要的作用，其主要实施的方法是采用合适的控制器、检测仪表以及执行单元为硬件基础，同时通过设计人员或现场操作人员的参与和配合来实现的。浮选过程控制是提高浮选效率的重要方法。Flotation is a mineral separation technology and a major mineral processing method. Its main principle is the scientific technology of sorting minerals at the gas-liquid-solid three-phase interface based on the different physical and chemical properties of the mineral surface. The flotation process is a series of continuous processes from preparing ore raw materials before flotation to producing concentrate. In the flotation process, there are many process factors that affect the flotation process, but the more important ones are: the selected particle size of the ore, the selected concentration of the slurry, the pharmaceutical system, the slurry concentration, the slurry temperature, the water quality, the flotation time, and the flotation process. Process etc. Automatic control of the flotation production process plays a very important role in ensuring product quality indicators and improving mineral processing efficiency. The main implementation method is to use appropriate controllers, detection instruments and execution units as the hardware basis, and at the same time through designers or on-site operations This is achieved with the participation and cooperation of personnel. Flotation process control is an important method to improve flotation efficiency.
浮选机过程控制系统涉及工艺参数调节、智能优化算法、信号采集、信号处理与通讯控制等方面。目前，浮选机工作时根据原料性质、处理量、产品要求、设备磨损情况等作适当调节，主要包括矿浆液面高低、充气量、矿浆循环量及搅拌机构间隙等的调节。但是，在矿石的入选粒度、矿浆的入选浓度、水质、浮选时间、浮选工艺流程等规格一定的条件下，搅拌装置中叶轮转速、叶轮高度（角度）、挡流板高度（角度）等参数也同样对浮选效果产生了重要影响，因此浮选机的控制优化也同样需要对上述参数进行优化。The flotation machine process control system involves process parameter adjustment, intelligent optimization algorithms, signal acquisition, signal processing and communication control. At present, the flotation machine is adjusted appropriately according to the nature of the raw material, processing capacity, product requirements, equipment wear, etc., which mainly includes the adjustment of the slurry liquid level, aeration volume, slurry circulation volume, and the gap of the stirring mechanism. However, under certain conditions such as the selected particle size of the ore, the selected concentration of the slurry, water quality, flotation time, and flotation process flow, the impeller speed, impeller height (angle), baffle height (angle), etc. in the stirring device Parameters also have an important impact on the flotation effect, so the control optimization of the flotation machine also requires the optimization of the above parameters.
为解决上述问题，通常采用的方法是利用自动化检测技术及时有效地指示出选矿过程各参数的变化，并根据反馈的结果及时准确地自动调整浮选相关参数。目前，国内外选矿厂的自动化集成程度越来越高，其中浮选机的控制系统按照复杂程度、硬件要求及性能分为三种不同层次，依次为稳定控制、监督控制、最优控制。在浮选过程中，一般只对入料量、入料浓度和浮选药剂用量以及浮选机液位进行自动控制。但该方法尚有缺点，因为浮选工艺并不是一个简单的工业过程，它包含了很多难处理、复杂的自动化技术难点，例如控制系统容易出现的非线性、时变、易超调、多变量和随机干扰等特点，即要求控制单元具有强鲁棒性和适应性。仅仅对入料量、入料浓度、浮选机液位等参数进行检测与控制，而没有考虑工艺参数之间的耦合关系以及对其它影响因素进行调控是不全面的，并不能真正实现浮选机的控制优化。In order to solve the above problems, the method usually adopted is to use automated detection technology to promptly and effectively indicate changes in various parameters of the mineral processing process, and to automatically adjust flotation-related parameters in a timely and accurate manner based on the feedback results. At present, the degree of automation integration of mineral processing plants at home and abroad is getting higher and higher. The control system of the flotation machine is divided into three different levels according to the complexity, hardware requirements and performance, which are stability control, supervisory control and optimal control. In the flotation process, generally only the feed amount, feed concentration, flotation reagent dosage, and flotation machine liquid level are automatically controlled. However, this method still has shortcomings, because the flotation process is not a simple industrial process. It contains many difficult and complex automation technical difficulties, such as nonlinearity, time variation, easy overshoot, and multivariable control systems that are prone to occur. and random interference, which requires the control unit to have strong robustness and adaptability. Merely detecting and controlling parameters such as feed volume, feed concentration, and flotation machine liquid level without considering the coupling relationship between process parameters and regulating other influencing factors is incomplete and cannot truly realize flotation. Machine control optimization.
发明内容Contents of the invention
发明目的：本发明的主要目的在于提供一种浮选机过程控制装置，可以显著地提高浮选效率，保障浮选质量并延长浮选机的经济使用寿命；本发明的另一目的在于提供一种浮选机过程装置控制方法，可实现浮选机的叶轮转速、叶轮（或挡流板）高度角度能根据浮选工况进行实时调节，达到浮选机高效节能的目的。Purpose of the invention: The main purpose of the present invention is to provide a flotation machine process control device that can significantly improve the flotation efficiency, ensure the flotation quality and extend the economic service life of the flotation machine; another purpose of the present invention is to provide a flotation machine process control device. This flotation machine process device control method can realize that the flotation machine's impeller speed and impeller (or baffle) height angle can be adjusted in real time according to the flotation working conditions, achieving the purpose of high efficiency and energy saving of the flotation machine.
技术方案：Technical solutions:
一种浮选机过程控制装置，其特征在于：A flotation machine process control device, characterized by:
包括：include:
调整系统、检测系统和控制器；adjusting systems, testing systems and controllers;
所述调整系统包括：The adjustment system includes:
筒壁中心可升降的叶轮，叶轮上设置有可调节角度的叶片；叶轮主轴与电机连接；There is an impeller that can be raised and lowered in the center of the cylinder wall, and the impeller is provided with blades with adjustable angles; the main shaft of the impeller is connected to the motor;
筒壁内侧设置有固定板，纵向排列的多个挡流板设置在挡流板导轨上与固定板连接；各挡流板通过转动副与挡流板导轨连接；同一挡流板导轨上的多个挡流板通过一个联动杆连接在一起；所述联动杆和挡流板导轨各自连接有驱动装置；A fixed plate is provided on the inside of the cylinder wall, and multiple baffles arranged longitudinally are arranged on the baffle guide rail and connected to the fixed plate; each baffle plate is connected to the baffle guide rail through a rotating pair; multiple baffle plates on the same baffle guide rail The two baffles are connected together through a linkage rod; the linkage rod and the baffle guide rail are each connected to a driving device;
所述固定板在筒壁上圆周均布；The fixed plates are evenly distributed around the cylinder wall;
所述检测系统包括流量传感器、浓度传感器和液位传感器，均设置在筒壁内部，各传感器通过数据采集卡连接至计算机；The detection system includes a flow sensor, a concentration sensor and a liquid level sensor, all of which are installed inside the cylinder wall. Each sensor is connected to the computer through a data acquisition card;
所述控制器为连接有上述各传感器的计算机。The controller is a computer connected to each of the above sensors.
所述浮选机过程控制装置，其特征在于：所述叶轮主轴通过联轴器连接至电机；所述电机设置在悬臂支架上，所述悬臂支架与筒壁外侧的立柱通过立柱导轨连接。The flotation machine process control device is characterized in that: the impeller main shaft is connected to the motor through a coupling; the motor is arranged on a cantilever bracket, and the cantilever bracket is connected to the column outside the cylinder wall through a column guide rail.
所述浮选机过程控制装置，其特征在于：所述主轴与筒壁轴线重合；所述叶轮、主轴及电机通过悬臂支架，可在筒壁轴向方向上沿立柱导轨上下运动。The flotation machine process control device is characterized in that: the main shaft coincides with the cylinder wall axis; the impeller, main shaft and motor can move up and down along the column guide rail in the axial direction of the cylinder wall through the cantilever bracket.
所述浮选机过程控制装置，其特征在于：所述联动杆和挡流板导轨各自与伺服电机连接。The flotation machine process control device is characterized in that: the linkage rod and the baffle guide rail are each connected to a servo motor.
所述浮选机过程控制装置，其特征在于：所述叶轮上叶片数量为三个，各叶片根部均设置有角度调节装置。The flotation machine process control device is characterized in that: the number of blades on the impeller is three, and an angle adjustment device is provided at the root of each blade.
所述的控制装置的控制方法，其特征在于：包括如下步骤：The control method of the control device is characterized in that it includes the following steps:
步骤1.检测系统中的传感器检测浮选机过程控制的不同工况参数，包括入料量、入料浓度、浮选药剂、浮选机液位的参数变化，然后通过数据采集卡将采集的信号转换成数字信号输出，接着执行步骤2；Step 1. The sensor in the detection system detects the parameters of different operating conditions of the flotation machine process control, including the parameter changes of the feed amount, feed concentration, flotation reagent, and flotation machine liquid level, and then collects the collected data through the data acquisition card. The signal is converted into a digital signal and output, and then step 2 is performed;
步骤2.判断浮选过程参数是否低于目标值，如果是，执行步骤3，如果否，执行步骤4；Step 2. Determine whether the flotation process parameters are lower than the target value. If yes, proceed to step 3. If not, proceed to step 4;
步骤3.控制器中的计算机依据检测系统中各传感器输出的参数，将叶轮转速、叶轮高度、角度；挡流板高度、角度；传送一控制信号至执行部分，然后执行步骤5；Step 3. The computer in the controller sends a control signal to the execution part based on the parameters output by each sensor in the detection system, and then performs step 5;
步骤4.依据智能优化算法模块的计算结果，对不同的工况参数进行优化计算，并输出优化后的叶轮转速、叶轮高度、角度；挡流板高度、角度的控制信号至执行部分，然后执行步骤5；Step 4. Based on the calculation results of the intelligent optimization algorithm module, perform optimization calculations on different working condition parameters, and output the optimized impeller speed, impeller height, and angle; the control signals of the baffle height and angle to the execution part, and then execute Step 5;
步骤5.浮选调整系统接收计算机传送的控制信号后，通过伺服电机进行调整控制，进而实现叶轮转速、叶轮高度、角度；挡流板高度、角度参数的优化。Step 5. After receiving the control signal transmitted by the computer, the flotation adjustment system performs adjustment and control through the servo motor to optimize the impeller speed, impeller height, and angle; and the baffle height and angle parameters.
优点及效果：与其它的浮选机过程控制技术相比，本发明的浮选机过程控制装置以及控制方法可综合考虑影响浮选机过程工艺参数之间的交互耦合影响，通过适时、适量地调整叶轮转速、叶轮（或挡流板）高度角度等设备参数，改善上述现有技术的缺点，使浮选机正常运转，极大地提高过程控制系统的准确性并延长浮选机的经济使用寿命。Advantages and effects: Compared with other flotation machine process control technologies, the flotation machine process control device and control method of the present invention can comprehensively consider the interactive coupling effects between the process parameters that affect the flotation machine. Adjust equipment parameters such as impeller speed, impeller (or baffle) height angle, etc., to improve the shortcomings of the above-mentioned existing technologies, make the flotation machine operate normally, greatly improve the accuracy of the process control system, and extend the economic service life of the flotation machine. .
附图说明：Picture description:
图1为本发明的整体结构示意图；Figure 1 is a schematic diagram of the overall structure of the present invention;
图2为本发明的主轴结构示意图；Figure 2 is a schematic diagram of the spindle structure of the present invention;
图3为本发明的挡流板结构示意图；Figure 3 is a schematic structural diagram of the baffle of the present invention;
图4为本发明的运行流程图。Figure 4 is an operation flow chart of the present invention.
附图说明：11筒壁；12悬臂支架；13立柱；14立柱导轨；21电机；22联轴器；23主轴；24叶片；31固定板；32挡流板导轨；33挡流板；34联动杆。Description of the drawings: 11 cylinder wall; 12 cantilever bracket; 13 column; 14 column guide rail; 21 motor; 22 coupling; 23 spindle; 24 blades; 31 fixed plate; 32 baffle guide rail; 33 baffle; 34 linkage Rod.
具体实施方式：Detailed ways:
本发明包括一种浮选机过程控制装置，具体为如下结构：The invention includes a flotation machine process control device, which has the following structure:
一种浮选机过程控制装置，其特征在于：A flotation machine process control device, characterized by:
包括：include:
调整系统、检测系统和控制器；adjusting systems, testing systems and controllers;
所述调整系统包括：The adjustment system includes:
筒壁中心可升降的叶轮，叶轮上设置有可调节角度的叶片24；叶轮主轴23与电机21连接；There is an impeller that can be raised and lowered in the center of the cylinder wall, and the impeller is provided with blades 24 with adjustable angles; the impeller main shaft 23 is connected to the motor 21;
筒壁内侧设置有固定板31，纵向排列的多个挡流板33设置在挡流板导轨32上与固定板31连接；各挡流板33通过转动副与挡流板导轨32连接；同一挡流板导轨32上的多个挡流板33通过一个联动杆34连接在一起；所述联动杆34和挡流板导轨32各自连接有驱动装置；A fixed plate 31 is provided on the inside of the cylinder wall, and a plurality of longitudinally arranged baffles 33 are arranged on the baffle guide rail 32 and connected to the fixed plate 31; each baffle 33 is connected to the baffle guide rail 32 through a rotating pair; the same baffle plate 33 is connected to the baffle guide rail 32. Multiple baffles 33 on the flow plate guide rail 32 are connected together through a linkage rod 34; the linkage rod 34 and the baffle guide rail 32 are each connected to a driving device;
所述固定板31在筒壁上圆周均布；The fixed plates 31 are evenly distributed around the cylinder wall;
所述检测系统包括流量传感器、浓度传感器和液位传感器，均设置在筒壁内部，各传感器通过数据采集卡连接至计算机；The detection system includes a flow sensor, a concentration sensor and a liquid level sensor, all of which are installed inside the cylinder wall. Each sensor is connected to the computer through a data acquisition card;
所述控制器为连接有上述各传感器的计算机。The controller is a computer connected to each of the above sensors.
所述浮选机过程控制装置，其特征在于：所述叶轮主轴23通过联轴器22连接至电机21；所述电机21设置在悬臂支架12上，所述悬臂支架12与筒壁外侧的立柱13通过立柱导轨14连接。The flotation machine process control device is characterized in that: the impeller main shaft 23 is connected to the motor 21 through a coupling 22; the motor 21 is arranged on a cantilever bracket 12, and the cantilever bracket 12 is connected with the column outside the cylinder wall. 13 is connected through column guide rail 14.
所述浮选机过程控制装置，其特征在于：所述主轴23与筒壁轴线重合；所述叶轮、主轴23及电机21通过悬臂支架12，可在筒壁轴向方向上沿立柱导轨14上下运动。The flotation machine process control device is characterized in that: the main shaft 23 coincides with the cylinder wall axis; the impeller, main shaft 23 and motor 21 can move up and down along the column guide rail 14 in the axial direction of the cylinder wall through the cantilever bracket 12 sports.
所述浮选机过程控制装置，其特征在于：所述联动杆34和挡流板导轨32各自与伺服电机连接。The flotation machine process control device is characterized in that: the linkage rod 34 and the baffle guide rail 32 are each connected to a servo motor.
所述浮选机过程控制装置，其特征在于：所述叶轮上叶片24数量为三个，各叶片根部均设置有角度调节装置。The flotation machine process control device is characterized in that the number of blades 24 on the impeller is three, and an angle adjustment device is provided at the root of each blade.
还包括有上述装置的控制方法：Also included are control methods for the above devices:
包括如下步骤：Includes the following steps:
步骤1.检测系统中的传感器检测浮选机过程控制的不同工况参数，包括入料量、入料浓度、浮选药剂、浮选机液位的参数变化，然后通过数据采集卡将采集的信号转换成数字信号输出，接着执行步骤2；Step 1. The sensor in the detection system detects the parameters of different operating conditions of the flotation machine process control, including the parameter changes of the feed amount, feed concentration, flotation reagent, and flotation machine liquid level, and then collects the collected data through the data acquisition card. The signal is converted into a digital signal and output, and then step 2 is performed;
步骤2.判断浮选过程参数是否低于目标值，如果是，执行步骤3，如果否，执行步骤4；Step 2. Determine whether the flotation process parameters are lower than the target value. If yes, proceed to step 3. If not, proceed to step 4;
步骤3.控制器中的计算机依据检测系统中各传感器输出的参数，将叶轮转速、叶轮高度、角度；挡流板高度、角度；传送一控制信号至执行部分，然后执行步骤5；Step 3. The computer in the controller sends a control signal to the execution part based on the parameters output by each sensor in the detection system, and then performs step 5;
步骤4.依据智能优化算法模块的计算结果，对不同的工况参数进行优化计算，并输出优化后的叶轮转速、叶轮高度、角度；挡流板高度、角度的控制信号至执行部分，然后执行步骤5；Step 4. Based on the calculation results of the intelligent optimization algorithm module, perform optimization calculations on different working condition parameters, and output the optimized impeller speed, impeller height, and angle; the control signals of the baffle height and angle to the execution part, and then execute Step 5;
步骤5.浮选调整系统接收计算机传送的控制信号后，通过伺服电机进行调整控制，进而实现叶轮转速、叶轮高度、角度；挡流板高度、角度参数的优化。Step 5. After receiving the control signal transmitted by the computer, the flotation adjustment system performs adjustment and control through the servo motor to optimize the impeller speed, impeller height, and angle; and the baffle height and angle parameters.
本发明所述浮选机过程控制设置在浮选机系统中，用于调节浮选机系统的叶轮转速、叶轮高度（角度）、挡流板高度（角度）等设备参数。The process control of the flotation machine of the present invention is installed in the flotation machine system and is used to adjust the impeller speed, impeller height (angle), baffle height (angle) and other equipment parameters of the flotation machine system.
下面结合附图对本发明进行详细说明。The present invention will be described in detail below with reference to the accompanying drawings.
通过对叶轮转速的控制，辅以叶轮高度（角度）、挡流板高度（角度）的调节，可对浮选过程参数进行有效控制，提高浮选机的工作性能和可靠性。By controlling the impeller speed, supplemented by the adjustment of the impeller height (angle) and baffle height (angle), the flotation process parameters can be effectively controlled and the performance and reliability of the flotation machine can be improved.
其中检测系统由多个传感器和数据采集卡组成，传感器包括流量传感器、浓度传感器、液位传感器等；在浮选机系统正常工作时，检测不同工况条件下的参数并将其结果输出。各个传感器对浮选机系统运转情况下的工况参数进行实时监控，并将系统参数通过数据采集卡传递给计算机。The detection system consists of multiple sensors and data acquisition cards. The sensors include flow sensors, concentration sensors, liquid level sensors, etc.; when the flotation machine system is working normally, it detects parameters under different working conditions and outputs the results. Each sensor monitors the operating parameters of the flotation machine system in real time, and transmits the system parameters to the computer through the data acquisition card.
浮选检测系统将传感器信号传递给数据采集卡，进而传递给控制器进行数据处理，并将信号传递到浮选调整系统，通过叶轮调节装置和挡流板调节装置进行相应调整，经反馈后形成闭环控制系统，最终实现浮选过程参数的自动控制。The flotation detection system transmits the sensor signal to the data acquisition card, and then to the controller for data processing, and transmits the signal to the flotation adjustment system, which is adjusted accordingly through the impeller adjustment device and the baffle adjustment device, and is formed after feedback The closed-loop control system ultimately realizes automatic control of flotation process parameters.
图2为本发明的主轴结构示意图；Figure 2 is a schematic diagram of the spindle structure of the present invention;
图3为本发明的挡流板结构示意图；Figure 3 is a schematic structural diagram of the baffle of the present invention;
由控制器发出指令，控制伺服电机使挡流板整体上下移动，同时控制联动杆34使挡流板33的角度可调。挡流板33的高度和角度调节，既可同时进行控制，也可分开进行控制。The controller issues instructions to control the servo motor to move the entire baffle up and down, and simultaneously controls the linkage rod 34 to make the angle of the baffle 33 adjustable. The height and angle adjustment of the baffle 33 can be controlled simultaneously or separately.
图4为本发明的运行流程图；如图所示，应用本发明的浮选机过程装置智能控制方法的软件平台，预先建立浮选机系统工况参数（入料量、入料浓度、浮选药剂、浮选机液位）与叶轮转速、叶轮高度（角度）、挡流板高度（角度）等设备参数的非线性关系，借此执行下列步骤：Figure 4 is an operation flow chart of the present invention; as shown in the figure, the flotation machine process device intelligent control method software platform of the present invention is applied to pre-establish the flotation machine system working condition parameters (feeding amount, feeding concentration, flotation Select chemical agent, flotation machine liquid level) and the non-linear relationship between impeller speed, impeller height (angle), baffle height (angle) and other equipment parameters, thereby performing the following steps:
步骤1.检测系统中的传感器检测浮选机系统不同工况的工艺参数，然后通过数据采集卡将采集的信号转换成数字信号输出，接着执行步骤2；Step 1. The sensors in the detection system detect the process parameters of different working conditions of the flotation machine system, and then convert the collected signals into digital signal output through the data acquisition card, and then perform step 2;
步骤2.判断浮选药剂、浮选机液位等参数是否低于样本数据库储存的最优目标值（即一组预定工况参数所对应的预定值，包含叶轮转速、叶轮高度（角度）、挡流板高度（角度）等），如果是，执行步骤3，如果否，执行步骤4；Step 2. Determine whether the flotation reagent, flotation machine liquid level and other parameters are lower than the optimal target value stored in the sample database (that is, the predetermined value corresponding to a set of predetermined working condition parameters, including impeller speed, impeller height (angle), baffle height (angle), etc.), if yes, go to step 3, if not, go to step 4;
步骤3.控制器中的计算机依据检测系统中各传感器输出的参数，将叶轮转速、叶轮高度（角度）、挡流板高度（角度）传送一控制信号至执行部分，然后执行步骤5；Step 3. The computer in the controller transmits a control signal to the execution part based on the parameters output by each sensor in the detection system, including the impeller speed, impeller height (angle), and baffle height (angle), and then executes step 5;
控制器的计算机样本数据库所储存的工况参数与叶轮转速等设备参数间的对应关系，使一组预定工况参数对应一预定最优值，该叶轮转速与优化后的转速进行对比分析。在实验中，预先设定一组工况参数入料浓度值为20%、浮选药剂400g/t、入料量50m 3 /h、浮选机液位5，该组工况参数所对应叶片转速为80；另设一组预定工况参数入料浓度值为25%、浮选药剂450g/t、入料量55m 3 /h、浮选机液位8，该组工况参数所对应叶片转速为90。依此类推，将每组工况参数对应一叶轮转速，建立叶轮转速与工况参数之间的非线性关系。The corresponding relationship between the working condition parameters stored in the controller's computer sample database and equipment parameters such as impeller speed makes a set of predetermined working condition parameters correspond to a predetermined optimal value, and the impeller speed is compared and analyzed with the optimized speed. In the experiment, a set of working condition parameters was preset as the feed concentration value is 20%, the flotation agent is 400 g/t , the feeding amount is 50 m 3 /h , and the flotation machine liquid level is 5. The working condition parameters of this set of parameters are The corresponding blade speed is 80; another set of predetermined working condition parameters is set as the feed concentration value is 25%, the flotation agent is 450 g/t , the feed volume is 55 m3 / h , and the flotation machine liquid level is 8. This set of working conditions The blade speed corresponding to the parameter is 90. By analogy, each set of working condition parameters corresponds to an impeller speed, and a nonlinear relationship between impeller speed and working condition parameters is established.
步骤4.依据智能优化算法模块的计算结果，对不同的工况参数进行优化计算，并输出优化后的叶轮转速、叶轮高度（角度）、挡流板高度（角度）控制信号至执行部分，然后执行步骤5；Step 4. Based on the calculation results of the intelligent optimization algorithm module, perform optimization calculations on different working condition parameters, and output the optimized impeller speed, impeller height (angle), and baffle height (angle) control signals to the execution part, and then Execute step 5;
步骤5.执行部分接收计算机传送的控制信号后，通过调节伺服电机，进而实现叶轮转速、叶轮高度（角度）、挡流板高度（角度）等参数的优化，且保持叶轮转速不变并返回上述步骤1，重复执行步骤1至步骤5，使叶轮转速依据浮选机系统工况参数的变化适时变化。Step 5. After receiving the control signal from the computer, the execution part adjusts the servo motor to optimize parameters such as impeller speed, impeller height (angle), baffle height (angle), etc., while keeping the impeller speed unchanged and returning to the above Step 1: Repeat steps 1 to 5 to make the impeller speed change in a timely manner according to the changes in the flotation machine system operating parameters.
在实验中，入料浓度值为28%、浮选药剂430g/t、入料量45m 3 /h、浮选机液位7，通过智能优化算法优化的叶片转速为75，再传送一控制信号控制执行部分（即叶轮转速、叶轮高度（角度）、挡流板高度（角度）等设备）。此后，不断地由检测系统传感器采集信号以及控制器部分分析和处理，通过调节伺服电机，实现对叶轮转速、叶轮高度（角度）、挡流板高度（角度）等设备参数的控制。In the experiment, the feed concentration value was 28%, the flotation agent was 430 g/t , the feed volume was 45 m 3 /h , and the flotation machine liquid level was 7. The blade speed optimized through the intelligent optimization algorithm was 75, and then a The control signal controls the execution part (ie, impeller speed, impeller height (angle), baffle height (angle), etc.). After that, the signals are continuously collected by the detection system sensor and analyzed and processed by the controller part. By adjusting the servo motor, the control of equipment parameters such as impeller speed, impeller height (angle), and baffle height (angle) is realized.
通过上述步骤运行后，该系统的整体输出信号除叶轮转速信号外，还包括叶轮高度（角度）、挡流板高度（角度）等搅拌设备参数。After running through the above steps, in addition to the impeller speed signal, the overall output signal of the system also includes mixing equipment parameters such as impeller height (angle) and baffle height (angle).
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