技术领域technical field
本发明涉及金属矿山尾矿膏体充填技术领域，特别是指一种底流浓度自适应调控的膏体浓密机及精准监测与调控方法。The invention relates to the technical field of metal mine tailings paste filling, in particular to a paste thickener with self-adaptive control of underflow concentration and a precise monitoring and control method.
背景技术Background technique
近年来，因其安全、环保、高效、经济等优点，膏体充填技术已成为矿山充填采矿技术的发展方向。尾矿料浆的高效深度脱水浓密是膏体充填技术的核心技术之一，膏体浓密机是尾矿料浆深度脱水浓密的关键设备。从选矿厂出来的尾矿料浆进入膏体浓密机后，在自身重力和絮凝剂的化学力作用下，形成絮团并快速沉降至膏体浓密机底部形成泥层；在泥层中，絮团在泥层压力和机械搅拌力的联合作用下，絮团水迅速排出并形成高浓度底流。但是，在实际生产中，因为尾矿颗粒极细，深度脱水浓密难度大，并且因为尾矿料浆浓度的不稳定等诸多不确定因素，底流浓度的波动范围大，常常很难获取浓度高且波动范围小的膏体料浆，导致充填系统不稳定、充填效果不理想。因此，亟待发明一种底流浓度自适应调控的膏体浓密机及其精准监测与调控系统，本发明既能获取高浓度的底流，满足膏体充填的需要，也能精准预测、快速调节底流浓度，保证其在较小的波动范围内，从而保证充填系统长时间高效稳定的运行，提高充填效率，保证充填效果。In recent years, paste filling technology has become the development direction of mine filling mining technology due to its advantages of safety, environmental protection, high efficiency and economy. The efficient deep dehydration and thickening of tailings slurry is one of the core technologies of paste filling technology, and the paste thickener is the key equipment for deep dehydration and thickening of tailings slurry. After the tailings slurry from the concentrator enters the paste thickener, under the action of its own gravity and the chemical force of the flocculant, it forms flocs and quickly settles to the bottom of the paste thickener to form a mud layer; in the mud layer, the flocs Under the combined action of the mud layer pressure and mechanical stirring force, the floc water is quickly discharged and forms a high-concentration underflow. However, in actual production, because the tailings particles are extremely fine, deep dehydration and thickening is difficult, and because of many uncertain factors such as the instability of tailings slurry concentration, the fluctuation range of underflow concentration is large, and it is often difficult to obtain high concentration and Paste slurry with a small fluctuation range leads to unstable filling system and unsatisfactory filling effect. Therefore, it is urgent to invent a paste thickener with adaptive regulation of underflow concentration and its precise monitoring and control system. This invention can not only obtain high-concentration underflow to meet the needs of paste filling, but also accurately predict and quickly adjust the underflow concentration. , to ensure that it is within a small fluctuation range, so as to ensure the efficient and stable operation of the filling system for a long time, improve the filling efficiency and ensure the filling effect.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种底流浓度自适应调控的膏体浓密机及精准监测与调控方法。The technical problem to be solved by the present invention is to provide a paste thickener with self-adaptive control of underflow concentration and a precise monitoring and control method.
该浓密机包括浓密池、稀释絮凝系统、剪切脱水系统、底流循环系统、监测系统、预测系统、自动调控系统，其中浓密池包括直筒、锥部、底部直筒和溢流槽；稀释絮凝系统包含尾矿料浆进料系统、絮凝剂添加系统、稀释水添加系统和中心筒；剪切脱水系统包括驱动电机、驱动轴和耙架；底流循环系统包括锥部循环系统、筒部循环系统；监测系统包括监测数据处理器和传感器系统；预测系统包括预测处理器；自动调控系统包括PLC控制系统、阀门、输送泵、驱动电机。The thickener includes a thickening tank, a dilution flocculation system, a shear dehydration system, an underflow circulation system, a monitoring system, a forecasting system, and an automatic regulation system. The thickening tank includes a straight cylinder, a cone, a bottom straight cylinder and an overflow tank; Tailings slurry feeding system, flocculant adding system, dilution water adding system and center cylinder; shearing dehydration system includes drive motor, drive shaft and rake frame; underflow circulation system includes cone circulation system, cylinder circulation system; monitoring The system includes a monitoring data processor and a sensor system; the prediction system includes a prediction processor; the automatic regulation system includes a PLC control system, valves, delivery pumps, and drive motors.
其中：in:
所述浓密池的直筒、锥部、底部直筒按照从上至下的顺序依次连接，直筒上方内部为中心筒，中心筒与直筒的竖直方向中心线位于同一位置，直筒上方外侧一周为溢流槽，直筒上方一侧从上至下依次连接絮凝剂添加系统、矿料浆进料系统、稀释水添加系统及筒部循环系统，直筒正上方为驱动电机；锥部外部上方一侧连接锥部循环系统；底部直筒外部下方一侧连接底流管；耙架贯穿直筒内部中下方及锥部内部，驱动轴贯穿直筒、锥部、底部直筒内部并连接驱动电机和耙架；浊度计位于溢流槽内部。The straight cylinder, the cone part, and the bottom straight cylinder of the dense pool are connected sequentially from top to bottom. The interior above the straight cylinder is the center cylinder, and the center cylinder and the vertical centerline of the straight cylinder are located at the same position. The outer circumference of the top of the straight cylinder is overflow The tank, the upper side of the straight cylinder is connected to the flocculant addition system, the mineral slurry feeding system, the dilution water addition system and the cylinder circulation system from top to bottom, and the drive motor is directly above the straight cylinder; the upper side of the cone is connected to the cone Circulation system; the lower side of the bottom straight cylinder is connected to the underflow pipe; the rake frame runs through the middle and lower inside of the straight cylinder and inside the cone, and the drive shaft runs through the straight cylinder, the cone, and the inside of the bottom straight cylinder and connects the drive motor and rake frame; the turbidimeter is located at the overflow slot inside.
尾矿料浆进料系统包括尾矿料浆进料管、进料阀一、输送泵一、浓度计一、流量计一，其中进料阀一、输送泵一、浓度计一、流量计一按顺序设置在尾矿料浆进料管上且尾矿料浆进料管末端接入中心筒内部。Tailings slurry feed system includes tailings slurry feed pipe, feed valve 1, delivery pump 1, concentration meter 1, flow meter 1, among which feed valve 1, delivery pump 1, concentration meter 1, flow meter 1 They are arranged on the tailings slurry feeding pipe in sequence and the end of the tailings slurry feeding pipe is connected to the inside of the center cylinder.
絮凝剂添加系统包括絮凝剂添加管、进料阀二、输送泵二、流量计二，其中进料阀二、输送泵二、流量计二按顺序设置在絮凝剂添加管上且絮凝剂添加管末端接入中心筒内部。The flocculant addition system includes flocculant addition pipe, feed valve 2, delivery pump 2, and flowmeter 2, wherein the feed valve 2, delivery pump 2, and flowmeter 2 are arranged on the flocculant addition pipe in sequence, and the flocculant addition pipe The end is connected to the inside of the central cylinder.
稀释水添加系统包括稀释水添加管、进料阀三、输送泵三、流量计三，其中进料阀三、输送泵三、流量计三按顺序设置在稀释水添加管上且稀释水添加管末端与尾矿料浆进料管末端相接。The dilution water addition system includes the dilution water addition pipe, the feed valve 3, the transfer pump 3, and the flow meter 3, wherein the feed valve 3, the transfer pump 3, and the flow meter 3 are arranged on the dilution water addition pipe in sequence and the dilution water addition pipe The end is connected with the end of the tailings slurry feed pipe.
锥部循环系统包括底流管、底流阀一、输送泵四、浓度计二、流量计四、锥部循环管、回料阀一，其中底流阀一、输送泵四、浓度计二、流量计四按顺序设置在底流管上，回料阀一设置在锥部循环管上，底流管和锥部循环管相连接；Cone circulation system includes underflow pipe, underflow valve 1, delivery pump 4, concentration meter 2, flow meter 4, cone circulation pipe, return valve 1, of which underflow valve 1, delivery pump 4, concentration meter 2, and flow meter 4 Set on the bottom flow pipe in order, the return valve is set on the cone circulation pipe, and the bottom flow pipe is connected with the cone circulation pipe;
筒部循环系统包括底流管、底流阀一、输送泵四、浓度计二、流量计四、筒部循环管、回料阀二，其中回料阀二设置在筒部循环管上且底流管与筒部循环管相连接。The cylinder circulation system includes an underflow pipe, an underflow valve 1, a transfer pump 4, a concentration meter 2, a flow meter 4, a cylinder circulation pipe, and a return valve 2, wherein the return valve 2 is set on the cylinder circulation pipe and the underflow pipe is connected to the The cylinder circulation pipe is connected.
监测系统中的监测数据处理器与传感器系统相连，传感器系统包括浓度计一、浓度计二、流量计一、流量计二、流量计三、流量计四、浊度计、压力传感器、扭矩传感器，其中浊度计位于溢流槽内部，压力传感器位于底部直筒底部，扭矩传感器位于耙架的外部。The monitoring data processor in the monitoring system is connected with the sensor system. The sensor system includes concentration meter 1, concentration meter 2, flow meter 1, flow meter 2, flow meter 3, flow meter 4, turbidity meter, pressure sensor, torque sensor, Among them, the turbidity meter is located inside the overflow tank, the pressure sensor is located at the bottom of the bottom straight cylinder, and the torque sensor is located outside the rake frame.
自动调控系统中的PLC控制系统与阀门、输送泵、驱动电机相连，其中阀门包括进料阀一、进料阀二、进料阀三、底流阀一、底流阀二、回料阀一、回料阀二，输送泵包括输送泵一、输送泵二、输送泵三、输送泵四。The PLC control system in the automatic regulation system is connected with valves, conveying pumps, and driving motors. The valves include feed valve 1, feed valve 2, feed valve 3, bottom flow valve 1, bottom flow valve 2, return valve 1, and return valve. Material valve 2 and delivery pump include delivery pump 1, delivery pump 2, delivery pump 3 and delivery pump 4.
膏体浓密机产生的底流浓度≥70％，浓度波动范围为±1.5％。The concentration of the underflow produced by the paste thickener is ≥70%, and the concentration fluctuation range is ±1.5%.
耙架的导水杆横向交错排列，耙架的高度为浓密池高度的2/3。The water guide rods of the rake frame are arranged in a staggered manner horizontally, and the height of the rake frame is 2/3 of the height of the thick pool.
采用该底流浓度自适应调控的膏体浓密机的精准监测与调控方法，包括如下步骤：The precise monitoring and control method of the paste thickener adopting the self-adaptive control of the underflow concentration includes the following steps:
S1：尾矿料浆、稀释水、絮凝剂进入中心筒，并启动剪切脱水系统，实现尾矿料浆的浓密，膏体浓密机底流质量浓度≥70％；S1: The tailings slurry, dilution water, and flocculant enter the central cylinder, and start the shear dehydration system to realize the thickening of the tailings slurry, and the mass concentration of the underflow of the paste thickener is ≥70%;
S2：根据膏体充填所需充填体强度，设定目标底流质量浓度，自动调控系统进行自动调控，以达到目标底流质量浓度；S2: According to the filling body strength required for paste filling, set the target underflow mass concentration, and the automatic control system will automatically adjust to achieve the target underflow mass concentration;
S3：监测系统实时监测浓度计一、浓度计二、流量计一、流量计一、流量计三、流量计四、浊度计、压力传感器、扭矩传感器，并将监测数据传输给预测系统，预测系统预测出下一时段底流浓度、溢流浊度和扭矩，自动调控系统根据预测结果对阀、输送泵、驱动电机发送调控指令，进行实时调控，保证底流质量浓度稳定在目标值附近，波动范围为±1.5％，再打开底流阀，膏体料浆经输送管输送至井下进行充填。S3: The monitoring system monitors concentration meter 1, concentration meter 2, flow meter 1, flow meter 1, flow meter 3, flow meter 4, turbidity meter, pressure sensor, and torque sensor in real time, and transmits the monitoring data to the prediction system to predict The system predicts the underflow concentration, overflow turbidity and torque in the next period, and the automatic control system sends control commands to valves, delivery pumps, and drive motors according to the prediction results, and performs real-time control to ensure that the underflow mass concentration is stable near the target value, and the fluctuation range ±1.5%, and then open the underflow valve, the paste slurry is transported to the underground through the delivery pipe for filling.
本发明的上述技术方案的有益效果如下：The beneficial effects of above-mentioned technical scheme of the present invention are as follows:
该浓密机既能获得高浓度的底流膏体料浆，又能实现膏体浓密机运行的实时监测，并能精准预测下一时段的底流浓度、溢流浊度和耙架扭矩，最终能实现实时快速调控底流浓度，保证浓度波动范围较小；同时，还能根据充填体强度的不同要求快速调节至所需底流浓度并保持稳定，从而保证充填系统的稳定运行，节约运营成本，提高充填效率，并满足不同采场对膏体料浆浓度的不同要求，实现个性化膏体充填。基于本发明，还可以高效的把尾矿制备成合格的膏体料浆充填至井下采空区，以有效地杜绝尾矿库所带来的安全环境危害。The thickener can not only obtain high-concentration underflow paste slurry, but also realize real-time monitoring of the operation of the paste thickener, and can accurately predict the underflow concentration, overflow turbidity and rake torque in the next period, and finally achieve Real-time and fast regulation of the underflow concentration to ensure a small concentration fluctuation range; at the same time, it can quickly adjust to the required underflow concentration according to the different requirements of the filling body strength and keep it stable, so as to ensure the stable operation of the filling system, save operating costs and improve filling efficiency , and meet the different requirements of different stopes for paste slurry concentration, and realize personalized paste filling. Based on the invention, the tailings can also be efficiently prepared into qualified paste slurry and filled into the underground goaf, so as to effectively eliminate the safety and environmental hazards caused by the tailings pond.
附图说明Description of drawings
图1为本发明一种底流浓度自适应调控的膏体浓密机结构示意图；Fig. 1 is a structural schematic diagram of a paste thickener for self-adaptive regulation and control of underflow concentration of the present invention;
图2为本发明实施例中另一种实施方法结构示意图。Fig. 2 is a schematic structural diagram of another implementation method in the embodiment of the present invention.
其中：1-尾矿料浆进料管，2-进料阀一，3-输送泵一，4-浓度计一，5-流量计一，6-絮凝剂添加管，7-进料阀二，8-输送泵二，9-流量计二，10-稀释水添加管，11-进料阀三，12-输送泵三，13-流量计三，14-驱动电机，15-中心筒，16-浊度计，17-溢流槽，18-驱动轴，19-直筒，20-耙架，21-锥部，22-底部直筒，23-压力传感器，24-底流阀一，25-输送泵四，26-浓度计二，27-流量计四，28-底流管，29-底流阀二，30-输送管，31-扭矩传感器，32-锥部循环管，33-回料阀一，34-筒部循环管，35-回料阀二，36-监测数据处理器，37-预测处理器，38-PLC控制系统。Among them: 1- tailings slurry feeding pipe, 2- feeding valve 1, 3- delivery pump 1, 4- concentration meter 1, 5- flow meter 1, 6- flocculant adding pipe, 7- feeding valve 2 , 8-delivery pump 2, 9-flow meter 2, 10-dilution water addition pipe, 11-feed valve 3, 12-delivery pump 3, 13-flow meter 3, 14-drive motor, 15-central cylinder, 16 -Turbidimeter, 17-overflow tank, 18-drive shaft, 19-straight cylinder, 20-rake frame, 21-cone, 22-bottom straight cylinder, 23-pressure sensor, 24-underflow valve 1, 25-delivery pump Four, 26-concentration meter two, 27-flow meter four, 28-underflow pipe, 29-underflow valve two, 30-delivery pipe, 31-torque sensor, 32-cone circulation pipe, 33-return valve one, 34 -Cylinder circulation pipe, 35-Return valve two, 36-Monitoring data processor, 37-Prediction processor, 38-PLC control system.
具体实施方式Detailed ways
为使本发明要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
本发明提供一种底流浓度自适应调控的膏体浓密机及精准监测与调控方法。The invention provides a paste thickener with self-adaptive control of underflow concentration and a precise monitoring and control method.
如图1所示，该浓密机包括浓密池、稀释絮凝系统、剪切脱水系统、底流循环系统、监测系统、预测系统、自动调控系统，其中浓密池包括直筒19、锥部21、底部直筒22和溢流槽17；稀释絮凝系统包含尾矿料浆进料系统、絮凝剂添加系统、稀释水添加系统和中心筒15；剪切脱水系统包括驱动电机14、驱动轴18和耙架20；底流循环系统包括锥部循环系统、筒部循环系统；监测系统包括监测数据处理器36和传感器系统；预测系统包括预测处理器37；自动调控系统包括PLC控制系统38、阀门、输送泵、驱动电机14。As shown in Figure 1, the thickener includes a thickening tank, a dilution flocculation system, a shear dehydration system, an underflow circulation system, a monitoring system, a forecasting system, and an automatic control system. The thickening tank includes a straight cylinder 19, a cone 21, and a bottom straight cylinder 22. and overflow tank 17; the dilution flocculation system includes a tailings slurry feeding system, a flocculant addition system, a dilution water addition system and a center cylinder 15; a shear dewatering system includes a drive motor 14, a drive shaft 18 and a rake frame 20; underflow The circulatory system includes a cone circulatory system and a cylinder circulatory system; the monitoring system includes a monitoring data processor 36 and a sensor system; the predictive system includes a predictive processor 37; the automatic regulation system includes a PLC control system 38, valves, delivery pumps, and drive motors 14 .
其中：in:
所述浓密池的直筒19、锥部21、底部直筒22按照从上至下的顺序依次连接，直筒19上方内部为中心筒15，中心筒15与直筒19的竖直方向中心线位于同一位置，直筒19上方外侧一周为溢流槽17，直筒19上方一侧从上至下依次连接絮凝剂添加系统、矿料浆进料系统、稀释水添加系统及筒部循环系统，直筒19正上方为驱动电机14；锥部21外部上方一侧连接锥部循环系统；底部直筒22外部下方一侧连接底流管；耙架20贯穿直筒19内部中下方及锥部21内部，驱动轴18贯穿直筒19、锥部21、底部直筒22内部并连接驱动电机14和耙架20；浊度计16位于溢流槽17内部。The straight cylinder 19, the cone portion 21, and the bottom straight cylinder 22 of the dense pool are connected sequentially from top to bottom. The interior above the straight cylinder 19 is the central cylinder 15, and the vertical centerline of the central cylinder 15 and the straight cylinder 19 is located at the same position. The upper and outer circumference of the straight cylinder 19 is the overflow tank 17, and the upper side of the straight cylinder 19 is connected with the flocculant addition system, the mineral slurry feeding system, the dilution water addition system and the cylinder circulation system in sequence from top to bottom, and the straight top of the straight cylinder 19 is the drive Motor 14; the outer upper side of the cone 21 is connected to the cone circulation system; the lower side of the bottom straight cylinder 22 is connected to the underflow pipe; the rake frame 20 runs through the middle and lower inside of the straight cylinder 19 and the inside of the cone 21, and the drive shaft 18 runs through the straight cylinder 19, the cone part 21, the inside of the bottom straight tube 22 and connect the drive motor 14 and the rake frame 20; the turbidimeter 16 is located inside the overflow tank 17.
尾矿料浆进料系统包括尾矿料浆进料管1、进料阀一2、输送泵一3、浓度计一4、流量计一5，其中进料阀一2、输送泵一3、浓度计一4、流量计一5按顺序设置在尾矿料浆进料管1上且尾矿料浆进料管1末端接入中心筒15内部。The tailings slurry feed system includes a tailings slurry feed pipe 1, a feed valve 1, a delivery pump 3, a concentration meter 4, and a flow meter 5, wherein the feed valve 1, delivery pump 3, The concentration meter one 4 and the flow meter one 5 are arranged on the tailings slurry feeding pipe 1 in sequence, and the end of the tailings slurry feeding pipe 1 is connected to the inside of the central cylinder 15 .
絮凝剂添加系统包括絮凝剂添加管6、进料阀二7、输送泵二8、流量计二9，其中进料阀二7、输送泵二8、流量计二9按顺序设置在絮凝剂添加管6上且絮凝剂添加管6末端接入中心筒15内部。The flocculant addition system includes flocculant addition pipe 6, feed valve 2 7, delivery pump 2 8, and flow meter 2 9, among which the feed valve 2 7, delivery pump 2 8, and flow meter 2 9 are set in sequence for flocculant addition On the pipe 6 and the end of the flocculant adding pipe 6 is connected to the inside of the central cylinder 15 .
稀释水添加系统包括稀释水添加管10、进料阀三11、输送泵三12、流量计三13，其中进料阀三11、输送泵三12、流量计三13按顺序设置在稀释水添加管10上且稀释水添加管10末端与尾矿料浆进料管1末端相接。The dilution water addition system includes a dilution water addition pipe 10, a feed valve 3 11, a delivery pump 3 12, and a flow meter 3 13. On the pipe 10 and the end of the dilution water adding pipe 10 is connected with the end of the tailings slurry feeding pipe 1 .
锥部循环系统包括底流管28、底流阀一24、输送泵四25、浓度计二26、流量计四27、锥部循环管32、回料阀一33，其中底流阀一24、输送泵四25、浓度计二26、流量计四27按顺序设置在底流管28上，回料阀一33设置在锥部循环管32上，底流管28和锥部循环管32相连接；筒部循环系统包括底流管28、底流阀一24、输送泵四25、浓度计二26、流量计四27、筒部循环管34、回料阀二35，其中回料阀二35设置在筒部循环管34上且底流管28与筒部循环管34相连接。Cone circulation system includes underflow pipe 28, underflow valve one 24, delivery pump four 25, concentration meter two 26, flow meter four 27, cone circulation pipe 32, return valve one 33, of which underflow valve one 24, delivery pump four 25. Concentration meter two 26 and flow meter four 27 are arranged on the bottom flow pipe 28 in order, and the return valve one 33 is arranged on the cone circulation pipe 32, and the bottom flow pipe 28 is connected with the cone circulation pipe 32; the cylinder circulation system Including underflow pipe 28, underflow valve one 24, delivery pump four 25, concentration meter two 26, flow meter four 27, barrel circulation pipe 34, and return valve two 35, wherein the return valve two 35 is set on the barrel circulation pipe 34 The upper and lower flow pipes 28 are connected to the cylindrical circulation pipe 34 .
监测系统中的监测数据处理器36与传感器系统相连，传感器系统包括浓度计一4、浓度计二26、流量计一5、流量计二9、流量计三13、流量计四27、浊度计16、压力传感器23、扭矩传感器31，其中浊度计16位于溢流槽17内部，压力传感器23位于底部直筒22底部，扭矩传感器31位于耙架20的外部。The monitoring data processor 36 in the monitoring system is connected with the sensor system, and the sensor system includes a concentration meter one 4, a concentration meter two 26, a flow meter one 5, a flow meter two 9, a flow meter three 13, a flow meter four 27, a turbidity meter 16. The pressure sensor 23 and the torque sensor 31, wherein the turbidity meter 16 is located inside the overflow tank 17, the pressure sensor 23 is located at the bottom of the bottom straight cylinder 22, and the torque sensor 31 is located outside the rake frame 20.
自动调控系统中的PLC控制系统38与阀门、输送泵、驱动电机14相连，其中阀门包括进料阀一2、进料阀二7、进料阀三3、底流阀一24、底流阀二29、回料阀一33、回料阀二35，输送泵包括输送泵一3、输送泵二8、输送泵三12、输送泵四25。The PLC control system 38 in the automatic control system is connected with the valves, delivery pumps, and drive motor 14, wherein the valves include feed valve 1 2, feed valve 2 7, feed valve 3 3, underflow valve 1 24, underflow valve 2 29 , Return valve one 33, return valve two 35, the delivery pump includes delivery pump one 3, delivery pump two 8, delivery pump three 12, delivery pump four 25.
膏体浓密机产生的底流浓度≥70％，浓度波动范围为±1.5％。The concentration of the underflow produced by the paste thickener is ≥70%, and the concentration fluctuation range is ±1.5%.
耙架20的导水杆横向交错排列，耙架20的高度为浓密池高度的2/3。The water guide rods of the rake frame 20 are horizontally staggered, and the height of the rake frame 20 is 2/3 of the height of the dense pool.
采用该底流浓度自适应调控的膏体浓密机的精准监测与调控方法，包括如下步骤：The precise monitoring and control method of the paste thickener adopting the self-adaptive control of the underflow concentration includes the following steps:
S1：尾矿料浆、稀释水、絮凝剂进入中心筒15，并启动剪切脱水系统，实现尾矿料浆的浓密，膏体浓密机底流质量浓度≥70％；S1: tailings slurry, dilution water, and flocculant enter the central cylinder 15, and start the shear dehydration system to realize the thickening of tailings slurry, and the mass concentration of the underflow of the paste thickener is ≥70%;
S2：根据膏体充填所需充填体强度，设定目标底流质量浓度，自动调控系统进行自动调控，以达到目标底流质量浓度；S2: According to the filling body strength required for paste filling, set the target underflow mass concentration, and the automatic control system will automatically adjust to achieve the target underflow mass concentration;
S3：监测系统实时监测浓度计一4、浓度计二26、流量计一5、流量计一9、流量计三13、流量计四27、浊度计16、压力传感器23、扭矩传感器31，并将监测数据传输给预测系统，预测系统预测出下一时段底流浓度、溢流浊度和扭矩，自动调控系统根据预测结果对阀、输送泵、驱动电机14发送调控指令，进行实时调控，保证底流质量浓度稳定在目标值附近，波动范围为±1.5％，再打开底流阀29，膏体料浆经输送管30输送至井下进行充填。S3: The monitoring system monitors concentration meter one 4, concentration meter two 26, flow meter one 5, flow meter one 9, flow meter three 13, flow meter four 27, turbidity meter 16, pressure sensor 23, torque sensor 31, and The monitoring data is transmitted to the prediction system, and the prediction system predicts the underflow concentration, overflow turbidity and torque in the next period, and the automatic control system sends control instructions to the valve, delivery pump, and drive motor 14 according to the prediction results, and performs real-time control to ensure the underflow The mass concentration is stabilized around the target value, and the fluctuation range is ±1.5%, and then the underflow valve 29 is opened, and the paste slurry is transported to the downhole through the delivery pipe 30 for filling.
本发明的实施例如下：Embodiments of the present invention are as follows:
在应用过程中，选矿厂质量浓度20％左右的尾矿浆经过尾矿料浆进料管1进入膏体浓密机中心筒15，通过絮凝剂添加管6添加絮凝剂，稀释水添加管10将溢流槽17中的澄清水输送到尾矿料浆进料管1中对尾矿浆进行稀释10％左右。控制系统自动启动驱动电机14，耙架20开始搅拌，实现对尾矿浆的深度浓密，膏体浓密机底流质量浓度为72％。In the application process, the tailings slurry with a mass concentration of about 20% in the dressing plant enters the central cylinder 15 of the paste thickener through the tailings slurry feeding pipe 1, and the flocculant is added through the flocculant adding pipe 6, and the dilution water adding pipe 10 will The clarified water in the launder 17 is sent to the tailings slurry feeding pipe 1 to dilute the tailings slurry by about 10%. The control system automatically starts the drive motor 14, and the rake frame 20 starts stirring to realize the deep thickening of the tailings slurry, and the mass concentration of the underflow of the paste thickener is 72%.
监测系统实时监测浓度计一4、浓度计二26、流量计一5、流量计一9、流量计三13、流量计四27、浊度计16、压力传感器23、扭矩传感器31，并将监测数据传输给预测系统，预测系统预测出下一时段底流浓度、溢流浊度和扭矩，自动调控系统根据预测结果对阀、输送泵、驱动电机14发送调控指令，进行实时调控，保证底流质量浓度稳定在70.5％～73.5％范围内，打开底流阀二29，膏体料浆经输送管30输送至井下进行充填。The monitoring system monitors concentration meter one 4, concentration meter two 26, flow meter one 5, flow meter one 9, flow meter three 13, flow meter four 27, turbidity meter 16, pressure sensor 23, torque sensor 31 in real time, and will monitor The data is transmitted to the prediction system. The prediction system predicts the underflow concentration, overflow turbidity and torque in the next period. The automatic control system sends control instructions to the valve, delivery pump, and drive motor 14 according to the prediction results, and performs real-time control to ensure the mass concentration of the underflow. Stable in the range of 70.5% to 73.5%, open the underflow valve 2 29, and the paste slurry is transported to the downhole through the delivery pipe 30 for filling.
如图2所示，在本发明装置中，还可以将稀释水添加管10直接从溢流槽17引出，将溢流槽17内的循环水通过稀释水添加管10添加到中心筒15中，实现溢流水的循环利用。As shown in Figure 2, in the device of the present invention, the dilution water addition pipe 10 can also be directly drawn out from the overflow tank 17, and the circulating water in the overflow tank 17 can be added to the center cylinder 15 through the dilution water addition pipe 10, Realize the recycling of overflow water.
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332168.0ACN108553952B (en) | 2018-04-13 | 2018-04-13 | Paste thickener with adaptive regulation of underflow concentration and precise monitoring and regulation method |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332168.0ACN108553952B (en) | 2018-04-13 | 2018-04-13 | Paste thickener with adaptive regulation of underflow concentration and precise monitoring and regulation method |
| Publication Number | Publication Date |
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| CN108553952Atrue CN108553952A (en) | 2018-09-21 |
| CN108553952B CN108553952B (en) | 2021-04-06 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810332168.0AActiveCN108553952B (en) | 2018-04-13 | 2018-04-13 | Paste thickener with adaptive regulation of underflow concentration and precise monitoring and regulation method |
| Country | Link |
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| CN (1) | CN108553952B (en) |
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