PLC－7000浮選機全自動控制系統
 Flotation  Machine Fully Automatic Control System

該系統可應用于金屬礦山、非金屬礦物的浮選作業流程中，以入浮礦漿濃度、藥劑添加量和浮選槽液位作為主要控制內容，以提高浮選精礦品位和回收率并降低生產成本作為控制目標。

This system can be used in flotation of metallic minerals and  nonmetallic minerals. It mainly controls the concentration of flotation slurry,  reagent added volume and the liquid level of flotation tank, and aims to  improve the grade and recovery ratio of flotation concentrate, as well as  reduce production costs.

控制內容
 Control Content

1.實時檢測原礦漿的濃度和流量，通過PID定值法運算改變自動閥開度調整稀釋水流量，使入浮礦漿穩定在設定范圍

1. Conduct real-time detection of concentration and flow of the  original slurry. Change the openness of automatic valve and adjust the dilution  water flow through PID constant value method to stabilize flotation slurry  within the setting range.

2.根據入浮干礦量自動調節入浮前的浮選藥劑添加量（一段加藥）

2. Automatically adjust the adding amount of flotation reagent  before flotation according to flotation dry ore (adding reagent in phase I).

3.根據浮選工藝階段的具體要求優化控制浮選指標，自動調節各個浮選槽藥劑添加量（二段加藥）

3. Optimize flotation indexes according to specific requirements  of flotation stage and automatically adjust the adding amount of reagent in  each flotation tank (adding reagent in phase II)

4.檢測浮選槽液位水平，根據浮選階段調控指標通過逆系統控制方法自動調節槽間閘門位置，閉環控制液面穩定在所需的范圍

4. Detect the liquid level of flotation tank; regulate indexes  according to flotation stages; automatically adjust strobe position between  tanks through inverse system control method; stabilize the liquid level of  closed-loop control within required range.

5.對于充氣式浮選機可根據需要進行浮選槽充氣量控制，保障浮選效果

5. For aeration flotation machine, aeration quantity of flotation  tank can be controlled according to needs to ensure flotation effects.

控制方案
 Control Scheme

通過檢測給入礦漿濃度和流量調節加水閥的流量入浮礦漿濃度穩定在設定值；依照浮選各個階段的不同要求精確控制加藥量；根據工藝設定采用逆系統方法控制浮選機液位決定浮選泡沫刮出量，根據液位控制中間過程補水量；根據在線品位檢測數據分析運行狀態，便于及時調整工藝指標。

Adjust the flow of filling valve through detecting the  concentration and flow of feeding slurry, stabilize the concentration of  flotation slurry within the setting value, accurately control the additional  dosage according to different requirements in different flotation stages; adopt  inverse system method to control the liquid level of flotation machine and decide  the scraping amount of flotation froth according to technological design,  control water supplement amount during intermediate process according to liquid  level, detect the running status of data analysis according to online grade for  timely adjustment of technological indexes.

系統功能
 System Function

1.系統具有任意轉換操作自動/手動操作，在操作界面上修改入浮濃度、各點加藥量、補水量、浮選槽液位等控制參數

1. The system is equipped with functions of any conversion  operation and automatic/manual operation. It can change control parameters such  as flotation concentration, additional dosage of each point, water supplement  amount, and liquid level of flotation tank.

2.系統可根據需要修改各浮選槽驅動電機的起動方式

2. The system can change the start mode of drive motor in each  flotation tank based on requirements.

3.實時顯示原礦濃度、原礦流量、入浮濃度、各點加藥量、液位高度等參數

3. The system can instantly display the values of parameters such  as the concentration of raw ore, the flow of raw ore, flotation concentration,  additional dosage of each point, height of liquid level.

4.實時進行各測控參數運行趨勢圖，便于及時進行工藝調整

4. The system can conduct real-time monitor of the operation tendency  chart for each parameter so that technological adjustment can be made in time.

5.系統自動完成各運行參數的歷史數據記錄并進行數據統計和分析

5. The system automatically finishes the historical data records  of each operating parameter and conducts data statistics and analysis.

6.系統根據控制目標自動調整浮選作業運行在****工況狀態

6. The system automatically adjusts the flotation operation  according to control objectives to get it under optimum working conditions.

7.可打印輸出各種數據報表和趨勢圖，可上傳至企業管理層

7. The system can print out all kinds of data reports and tendency  charts which can be uploaded to the management of enterprise.

8.具有各參數上下限和電機故障報警功能

8. The system is equipped with alarm functions for upper and lower  limit of each parameter and motor faults.

9.系統可接入企業局域網，組成工廠自動化系統

9. The system can connect enterprise local area network to  constitute factory automation system.

系統構成
 System Structure

工控機或觸摸屏及PLC系統

Industry control computer or touch screen  and PLC system

1.自動控制用戶界面

1. Automatic control user interface

2.自動液位控制子系統

2. Automatic liquid level control subsystem

3.數控加藥子系統

3. Numerical control reagent adding subsystem

4.礦漿濃度計

4. Slurry concentration meter

5.電磁流量計

5. Electromagnetic flow meter

7.數控流量閥

7. Numerical control flow valve

使用效果
 Using Effect

浮選自動控制可以改善操作條件和保護環境，避免人為因素造成的浮選作業系統不穩定的現象。可以在降低藥耗、電耗的基礎上，穩定產品質量并提高浮選礦物回收率使用該系統可以達到減員增效的目的，降低了操作人員的勞動強度。

Flotation automatic control can improve operating conditions,  protect environment, and avoid instability of flotation system caused by human  factors. It can stabilize product quality and improve the recovery ratio of ore  flotation on the basis of reducing reagent consumption and power consumption.  If this system is adopted, the purpose of fewer labors but higher efficiency  can be achieved. The labor intensity of operators can be reduced.

用戶可選功能模塊
 Function Modules for Users’ Choice

1.上位機系統：含計算機、組態軟件、輸入輸出及通訊設備

1. Upper computer system: Including computer, configuration  software, input devices, output devices, and communication devices

2.下位機系統：PLC軟硬件系統及其功能模塊

2. Lower computer system: PLC software and hardware systems and  their function modules

3.自動加藥功能模塊

3. Function module of automatic reagent adding

4.浮選槽液位控制功能模塊

4. Function module of control over liquid level in flotation tank

5.入浮濃度和補水量自動控制模塊

5. Automatic control module of flotation concentration and water  supplement amount

6.充氣式浮選機充氣量自動控制模塊

6. Automatic control module of aeration quantity of aeration  flotation machine

7.浮選槽電機軟起動功能模塊

7. Function module of motor soft starting of flotation tank