CN108553952B - Paste thickener with self-adaptive control of underflow concentration and accurate monitoring and control method - Google Patents
Paste thickener with self-adaptive control of underflow concentration and accurate monitoring and control method Download PDFInfo
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- CN108553952B CN108553952B CN201810332168.0A CN201810332168A CN108553952B CN 108553952 B CN108553952 B CN 108553952B CN 201810332168 A CN201810332168 A CN 201810332168A CN 108553952 B CN108553952 B CN 108553952B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D21/30—Control equipment
- B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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Abstract
The invention provides a paste thickener with self-adaptive control of underflow concentration and a precise monitoring and control method, and belongs to the technical field of filling of metal mine tailings paste. The thickener comprises a thickening tank, a dilution flocculation system, a shearing and dewatering system, an underflow circulating system, a monitoring system, a prediction system and an automatic regulation and control system, wherein the thickening tank comprises a straight cylinder, a conical part, a bottom straight cylinder and an overflow groove; the dilution flocculation system comprises a tailing slurry feeding system, a flocculating agent adding system, a dilution water adding system and a central cylinder; the shearing and dewatering system comprises a driving motor, a driving shaft and a rake rack; the bottom flow circulating system comprises a cone circulating system and a cylinder circulating system; the monitoring system comprises a monitoring data processor and a sensor system; the prediction system comprises a prediction processor; the automatic regulation and control system comprises a PLC control system, a valve, a delivery pump and a driving motor. The invention has obvious effect on the problems of large fluctuation range of the underflow concentration of the paste thickener and poor real-time regulation and control accuracy.
Description
Technical Field
The invention relates to the technical field of filling of metal mine tailings paste, in particular to a paste thickener with self-adaptive control on underflow concentration and a precise monitoring and controlling method.
Background
In recent years, the paste filling technology has become the development direction of mine filling mining technology due to the advantages of safety, environmental protection, high efficiency, economy and the like. The efficient deep dehydration and thickening of the tailing slurry is one of the core technologies of the paste filling technology, and the paste thickener is the key equipment for deep dehydration and thickening of the tailing slurry. After tailing slurry from a concentrating mill enters a paste thickener, forming floccules under the action of self gravity and chemical force of a flocculating agent and rapidly settling to the bottom of the paste thickener to form a mud layer; in the mud layer, the floc water is quickly discharged and forms high-concentration underflow under the combined action of mud layer pressure and mechanical stirring force. However, in actual production, because the tailing particles are extremely fine, the difficulty of deep dewatering and thickening is high, and because of various uncertain factors such as unstable concentration of tailing slurry, the fluctuation range of underflow concentration is large, paste slurry with high concentration and small fluctuation range is often difficult to obtain, so that the filling system is unstable, and the filling effect is not ideal. Therefore, the invention provides a paste thickener with self-adaptive control of underflow concentration and an accurate monitoring and regulating system thereof, which can not only obtain high-concentration underflow to meet the requirement of paste filling, but also accurately predict and quickly regulate the underflow concentration to ensure that the underflow concentration is in a smaller fluctuation range, thereby ensuring that a filling system operates efficiently and stably for a long time, improving the filling efficiency and ensuring the filling effect.
Disclosure of Invention
The invention aims to provide a paste thickener capable of adaptively controlling underflow concentration and a precise monitoring and controlling method.
The thickener comprises a thickening tank, a dilution flocculation system, a shearing and dewatering system, an underflow circulating system, a monitoring system, a prediction system and an automatic regulation and control system, wherein the thickening tank comprises a straight cylinder, a conical part, a bottom straight cylinder and an overflow groove; the dilution flocculation system comprises a tailing slurry feeding system, a flocculating agent adding system, a dilution water adding system and a central cylinder; the shearing and dewatering system comprises a driving motor, a driving shaft and a rake rack; the bottom flow circulating system comprises a cone circulating system and a cylinder circulating system; the monitoring system comprises a monitoring data processor and a sensor system; the prediction system comprises a prediction processor; the automatic regulation and control system comprises a PLC control system, a valve, a delivery pump and a driving motor.
Wherein:
the straight cylinder, the cone part and the straight cylinder at the bottom of the thickening tank are sequentially connected from top to bottom, a central cylinder is arranged inside the straight cylinder, the central cylinder and the central line of the straight cylinder in the vertical direction are positioned at the same position, an overflow groove is formed in the periphery of the outer side above the straight cylinder, a flocculating agent adding system, a mineral slurry feeding system, a dilution water adding system and a cylinder part circulating system are sequentially connected to one side above the straight cylinder from top to bottom, and a driving motor is arranged right above the straight cylinder; the cone circulating system is connected to one side above the outer part of the cone; one side of the lower part of the outer part of the bottom straight cylinder is connected with an underflow pipe; the rake frame penetrates through the lower part in the interior of the straight cylinder and the interior of the cone part, and the driving shaft penetrates through the interiors of the straight cylinder, the cone part and the bottom straight cylinder and is connected with the driving motor and the rake frame; the turbidimeter is located inside the overflow launder.
The tailing slurry feeding system comprises a tailing slurry feeding pipe, a feeding valve I, a delivery pump I, a concentration meter I and a flow meter I, wherein the feeding valve I, the delivery pump I, the concentration meter I and the flow meter I are sequentially arranged on the tailing slurry feeding pipe, and the tail end of the tailing slurry feeding pipe is connected into the central cylinder.
The flocculant adding system comprises a flocculant adding pipe, a second feeding valve, a second conveying pump and a second flow meter, wherein the second feeding valve, the second conveying pump and the second flow meter are sequentially arranged on the flocculant adding pipe, and the tail end of the flocculant adding pipe is connected into the central cylinder.
The dilution water adding system comprises a dilution water adding pipe, a third feeding valve, a third delivery pump and a third flow meter, wherein the third feeding valve, the third delivery pump and the third flow meter are sequentially arranged on the dilution water adding pipe, and the tail end of the dilution water adding pipe is connected with the tail end of the tailing slurry feeding pipe.
The cone circulating system comprises a bottom flow pipe, a bottom flow valve I, a delivery pump II, a concentration meter II, a flow meter IV, a cone circulating pipe and a return valve I, wherein the bottom flow valve I, the delivery pump IV, the concentration meter II and the flow meter IV are sequentially arranged on the bottom flow pipe, the return valve I is arranged on the cone circulating pipe, and the bottom flow pipe is connected with the cone circulating pipe;
the drum part circulating system comprises a bottom flow pipe, a first bottom flow valve, a fourth conveying pump, a second concentration meter, a fourth flow meter, a drum part circulating pipe and a second return valve, wherein the second return valve is arranged on the drum part circulating pipe, and the bottom flow pipe is connected with the drum part circulating pipe.
The monitoring data processor in the monitoring system is connected with a sensor system, the sensor system comprises a concentration meter I, a concentration meter II, a flow meter I, a flow meter II, a flow meter III, a flow meter IV, a turbidity meter, a pressure sensor and a torque sensor, wherein the turbidity meter is positioned in the overflow groove, the pressure sensor is positioned at the bottom of the bottom straight cylinder, and the torque sensor is positioned outside the rake frame.
The PLC control system in the automatic regulation and control system is connected with the valves, the conveying pump and the driving motor, wherein the valves comprise a first feeding valve, a second feeding valve, a third feeding valve, a first underflow valve, a second underflow valve, a first return valve and a second return valve, and the conveying pump comprises a first conveying pump, a second conveying pump, a third conveying pump and a fourth conveying pump.
The concentration of the underflow generated by the paste thickener is more than or equal to 70 percent, and the concentration fluctuation range is +/-1.5 percent.
The water guide rods of the harrow frame are transversely staggered, and the height of the harrow frame is 2/3 of the height of the dense pool.
The accurate monitoring and regulating method of the paste thickener adopting the self-adaptive underflow concentration regulation comprises the following steps:
s1: enabling the tailing slurry, dilution water and a flocculating agent to enter a central cylinder, and starting a shearing and dewatering system to realize thickening of the tailing slurry, wherein the mass concentration of the underflow of the paste thickener is more than or equal to 70%;
s2: setting the target underflow mass concentration according to the strength of a filling body required by filling paste, and automatically regulating and controlling by an automatic regulating and controlling system so as to achieve the target underflow mass concentration;
s3: the monitoring system monitors the concentration meter I, the concentration meter II, the flow meter I, the flow meter III, the flow meter IV, the turbidimeter, the pressure sensor and the torque sensor in real time, monitoring data are transmitted to the prediction system, the prediction system predicts the underflow concentration, the overflow turbidity and the torque in the next time period, the automatic regulation and control system sends regulation and control instructions to the valve, the conveying pump and the driving motor according to the prediction result to carry out real-time regulation and control, the underflow quality concentration is ensured to be stable near a target value, the fluctuation range is +/-1.5%, then the underflow valve is opened, and the paste slurry is conveyed to the underground through the conveying pipe to be filled.
The technical scheme of the invention has the following beneficial effects:
the thickener can obtain high-concentration underflow paste slurry, can realize real-time monitoring of the operation of the paste thickener, can accurately predict the underflow concentration, the overflow turbidity and the rake torque in the next time period, and finally can realize real-time and rapid regulation of the underflow concentration and ensure that the concentration fluctuation range is smaller; meanwhile, the required underflow concentration can be quickly adjusted according to different requirements of the filling body strength and kept stable, so that the stable operation of a filling system is ensured, the operation cost is saved, the filling efficiency is improved, different requirements of different stopes on the paste slurry concentration are met, and personalized paste filling is realized. Based on the invention, the tailings can be efficiently prepared into qualified paste slurry to be filled into the underground goaf, so that the safety environmental hazard brought by a tailing pond is effectively avoided.
Drawings
Fig. 1 is a schematic structural diagram of a paste thickener with adaptive control of underflow concentration according to the invention;
fig. 2 is a schematic structural diagram of another implementation method in the embodiment of the invention.
Wherein: 1-tailing slurry feeding pipe, 2-feeding valve I, 3-delivery pump I, 4-concentration meter I, 5-flow meter I, 6-flocculating agent adding pipe, 7-feeding valve II, 8-delivery pump II, 9-flow meter II, 10-dilution water adding pipe, 11-feeding valve III, 12-delivery pump III, 13-flow meter III, 14-driving motor, 15-central cylinder, 16-turbidity meter, 17-overflow tank, 18-driving shaft, 19-straight cylinder, 20-rake frame, 21-cone, 22-bottom straight cylinder, 23-pressure sensor, 24-underflow valve I, 25-delivery pump IV, 26-concentration meter II, 27-flow meter IV, 28-underflow pipe, 29-underflow valve II, 30-delivery pipe, 31-torque sensor, 32-cone circulating pipe, 33-first return valve, 34-barrel circulating pipe, 35-second return valve, 36-monitoring data processor, 37-prediction processor and 38-PLC control system.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a paste thickener with self-adaptive control of underflow concentration and a precise monitoring and control method.
As shown in fig. 1, the thickener comprises a thickener tank, a dilution flocculation system, a shear dehydration system, an underflow circulation system, a monitoring system, a prediction system and an automatic regulation and control system, wherein the thickener tank comprises a straight cylinder 19, a conical part 21, a bottom straight cylinder 22 and an overflow groove 17; the dilution flocculation system comprises a tailing slurry feeding system, a flocculating agent adding system, a dilution water adding system and a central cylinder 15; the shearing and dewatering system comprises a driving motor 14, a driving shaft 18 and a rake rack 20; the bottom flow circulating system comprises a cone circulating system and a cylinder circulating system; the monitoring system comprises a monitoring data processor 36 and a sensor system; the prediction system comprises a prediction processor 37; the automatic regulating system comprises a PLC control system 38, a valve, a delivery pump and a driving motor 14.
Wherein:
the straight tube 19, the cone part 21 and the bottom straight tube 22 of the thickening tank are sequentially connected from top to bottom, the central tube 15 is arranged inside the upper part of the straight tube 19, the central tube 15 and the vertical center line of the straight tube 19 are positioned at the same position, the overflow groove 17 is arranged on the periphery of the outer side of the upper part of the straight tube 19, the flocculating agent adding system, the mineral slurry feeding system, the dilution water adding system and the tube part circulating system are sequentially connected to one side of the upper part of the straight tube 19 from top to bottom, and the driving motor 14 is arranged right above the straight tube 19; the cone circulating system is connected to the upper side of the outer part of the cone 21; one side of the lower part outside the bottom straight cylinder 22 is connected with an underflow pipe; the rake frame 20 penetrates through the lower middle part inside the straight cylinder 19 and the tapered part 21, and the driving shaft 18 penetrates through the straight cylinder 19, the tapered part 21 and the bottom straight cylinder 22 and is connected with the driving motor 14 and the rake frame 20; the turbidimeter 16 is located inside the overflow channel 17.
The tailing slurry feeding system comprises a tailing slurry feeding pipe 1, a feeding valve I2, a delivery pump I3, a concentration meter I4 and a flow meter I5, wherein the feeding valve I2, the delivery pump I3, the concentration meter I4 and the flow meter I5 are sequentially arranged on the tailing slurry feeding pipe 1, and the tail end of the tailing slurry feeding pipe 1 is connected into the center barrel 15.
The flocculant adding system comprises a flocculant adding pipe 6, a second feeding valve 7, a second delivery pump 8 and a second flow meter 9, wherein the second feeding valve 7, the second delivery pump 8 and the second flow meter 9 are sequentially arranged on the flocculant adding pipe 6, and the tail end of the flocculant adding pipe 6 is connected into the central cylinder 15.
The dilution water adding system comprises a dilution water adding pipe 10, a third feeding valve 11, a third delivery pump 12 and a third flow meter 13, wherein the third feeding valve 11, the third delivery pump 12 and the third flow meter 13 are sequentially arranged on the dilution water adding pipe 10, and the tail end of the dilution water adding pipe 10 is connected with the tail end of the tailing slurry feeding pipe 1.
The cone circulating system comprises a bottom flow pipe 28, a first underflow valve 24, a fourth delivery pump 25, a second concentration meter 26, a fourth flow meter 27, a cone circulating pipe 32 and a first return valve 33, wherein the first underflow valve 24, the fourth delivery pump 25, the second concentration meter 26 and the fourth flow meter 27 are sequentially arranged on the bottom flow pipe 28, the first return valve 33 is arranged on the cone circulating pipe 32, and the bottom flow pipe 28 is connected with the cone circulating pipe 32; the drum part circulating system comprises a bottom flow pipe 28, a first bottom flow valve 24, a fourth conveying pump 25, a second concentration meter 26, a fourth flow meter 27, a drum part circulating pipe 34 and a second return valve 35, wherein the second return valve 35 is arranged on the drum part circulating pipe 34, and the bottom flow pipe 28 is connected with the drum part circulating pipe 34.
A monitoring data processor 36 in the monitoring system is connected with a sensor system, the sensor system comprises a concentration meter I4, a concentration meter II 26, a flow meter I5, a flow meter II 9, a flow meter III 13, a flow meter IV 27, a turbidity meter 16, a pressure sensor 23 and a torque sensor 31, wherein the turbidity meter 16 is positioned inside the overflow chute 17, the pressure sensor 23 is positioned at the bottom of the bottom straight barrel 22, and the torque sensor 31 is positioned outside the rake frame 20.
The PLC control system 38 in the automatic regulation and control system is connected with the valves, the delivery pump and the driving motor 14, wherein the valves comprise a first feed valve 2, a second feed valve 7, a third feed valve 3, a first underflow valve 24, a second underflow valve 29, a first return valve 33 and a second return valve 35, and the delivery pump comprises a first delivery pump 3, a second delivery pump 8, a third delivery pump 12 and a fourth delivery pump 25.
The concentration of the underflow generated by the paste thickener is more than or equal to 70 percent, and the concentration fluctuation range is +/-1.5 percent.
The water guide rods of the rake frame 20 are transversely staggered, and the height of the rake frame 20 is 2/3 of the height of the thickening tank.
The accurate monitoring and regulating method of the paste thickener adopting the self-adaptive underflow concentration regulation comprises the following steps:
s1: the tailing slurry, dilution water and flocculating agent enter the central cylinder 15, and a shearing and dewatering system is started to realize the thickening of the tailing slurry, wherein the mass concentration of the underflow of the paste thickener is more than or equal to 70 percent;
s2: setting the target underflow mass concentration according to the strength of a filling body required by filling paste, and automatically regulating and controlling by an automatic regulating and controlling system so as to achieve the target underflow mass concentration;
s3: the monitoring system monitors a concentration meter I4, a concentration meter II 26, a flow meter I5, a flow meter I9, a flow meter III 13, a flow meter IV 27, a turbidimeter 16, a pressure sensor 23 and a torque sensor 31 in real time, the monitoring data is transmitted to the prediction system, the prediction system predicts the underflow concentration, the overflow turbidity and the torque in the next time period, the automatic regulation and control system sends regulation and control instructions to a valve, a delivery pump and a driving motor 14 according to the prediction result to carry out real-time regulation and control, the underflow quality concentration is ensured to be stabilized near a target value, the fluctuation range is +/-1.5%, then a underflow valve 29 is opened, and the paste slurry is delivered to the underground for filling through a delivery pipe 30.
The examples of the invention are as follows:
in the application process, tailing slurry with the mass concentration of about 20% in a concentrating mill enters a central cylinder 15 of a paste thickener through a tailing slurry feeding pipe 1, a flocculating agent is added through a flocculating agent adding pipe 6, and clear water in an overflow chute 17 is conveyed into the tailing slurry feeding pipe 1 by a dilution water adding pipe 10 to dilute the tailing slurry by about 10%. The control system automatically starts the driving motor 14, the rake rack 20 starts to stir, the deep thickening of tailing slurry is realized, and the mass concentration of the underflow of the paste thickener is 72%.
The monitoring system monitors a concentration meter I4, a concentration meter II 26, a flow meter I5, a flow meter I9, a flow meter III 13, a flow meter IV 27, a turbidimeter 16, a pressure sensor 23 and a torque sensor 31 in real time, the monitoring data is transmitted to the prediction system, the prediction system predicts the underflow concentration, the overflow turbidity and the torque in the next time period, the automatic regulation and control system sends regulation and control instructions to a valve, a delivery pump and a driving motor 14 according to the prediction result to carry out real-time regulation and control, the underflow quality concentration is ensured to be stabilized within the range of 70.5-73.5%, a underflow valve II 29 is opened, and paste is delivered to the underground for filling through a delivery pipe 30.
As shown in fig. 2, in the apparatus of the present invention, the dilution water addition pipe 10 may be led out directly from the overflow tank 17, and the circulating water in the overflow tank 17 may be added to the central cylinder 15 through the dilution water addition pipe 10, so as to recycle the overflow water.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. A paste thickener with self-adaptive control of underflow concentration is characterized in that: the thickener comprises a thickening tank, a dilution flocculation system, a shearing and dewatering system, an underflow circulating system, a monitoring system, a prediction system and an automatic regulation and control system, wherein the thickening tank comprises a straight cylinder (19), a cone part (21), a bottom straight cylinder (22) and an overflow groove (17); the dilution flocculation system comprises a tailing slurry feeding system, a flocculating agent adding system, a dilution water adding system and a central cylinder (15); the shearing and dewatering system comprises a driving motor (14), a driving shaft (18) and a harrow rack (20); the bottom flow circulating system comprises a cone circulating system and a cylinder circulating system; the monitoring system comprises a monitoring data processor (36) and a sensor system; the prediction system comprises a prediction processor (37); the automatic regulation and control system comprises a PLC control system (38), a valve, a delivery pump and a driving motor (14);
the straight cylinder (19), the cone part (21) and the bottom straight cylinder (22) of the thickening tank are sequentially connected from top to bottom, a central cylinder (15) is arranged inside the upper part of the straight cylinder (19), the central cylinder (15) and the central line of the straight cylinder (19) in the vertical direction are positioned at the same position, an overflow groove (17) is formed in the periphery of the outer side of the upper part of the straight cylinder (19), a flocculating agent adding system, a tailing slurry feeding system, a dilution water adding system and a cylinder part circulating system are sequentially connected to one side of the upper part of the straight cylinder (19) from top to bottom, and a driving motor (14) is arranged right above the straight cylinder (; the upper side of the outside of the cone part (21) is connected with a cone part circulating system; one side of the lower part of the outer part of the bottom straight cylinder (22) is connected with an underflow pipe (28); the rake frame (20) penetrates through the middle lower part in the straight cylinder (19) and the cone part (21), and the driving shaft (18) penetrates through the straight cylinder (19), the cone part (21) and the bottom straight cylinder (22) and is connected with the driving motor (14) and the rake frame (20); the turbidimeter (16) is positioned inside the overflow groove (17);
the tailing slurry feeding system comprises a tailing slurry feeding pipe (1), a feeding valve I (2), a delivery pump I (3), a concentration meter I (4) and a flow meter I (5), wherein the feeding valve I (2), the delivery pump I (3), the concentration meter I (4) and the flow meter I (5) are sequentially arranged on the tailing slurry feeding pipe (1), and the tail end of the tailing slurry feeding pipe (1) is connected into a central cylinder (15);
the dilution water adding system comprises a dilution water adding pipe (10), a third feed valve (11), a third delivery pump (12) and a third flow meter (13), wherein the third feed valve (11), the third delivery pump (12) and the third flow meter (13) are sequentially arranged on the dilution water adding pipe (10), and the tail end of the dilution water adding pipe (10) is connected with the tail end of the tailing slurry feeding pipe (1);
the cone circulating system comprises a bottom flow pipe (28), a first underflow valve (24), a fourth delivery pump (25), a second concentration meter (26), a fourth flow meter (27), a cone circulating pipe (32) and a first return valve (33), wherein the first underflow valve (24), the fourth delivery pump (25), the second concentration meter (26) and the fourth flow meter (27) are sequentially arranged on the bottom flow pipe (28), the first return valve (33) is arranged on the cone circulating pipe (32), and the bottom flow pipe (28) is connected with the cone circulating pipe (32); the drum part circulating system comprises a bottom flow pipe (28), a first underflow valve (24), a fourth delivery pump (25), a second concentration meter (26), a fourth flow meter (27), a drum part circulating pipe (34) and a second return valve (35), wherein the second return valve (35) is arranged on the drum part circulating pipe (34), and the bottom flow pipe (28) is connected with the drum part circulating pipe (34);
the flocculant adding system comprises a flocculant adding pipe (6), a second feed valve (7), a second delivery pump (8) and a second flow meter (9), wherein the second feed valve (7), the second delivery pump (8) and the second flow meter (9) are sequentially arranged on the flocculant adding pipe (6), and the tail end of the flocculant adding pipe (6) is connected into the central cylinder (15);
a monitoring data processor (36) in the monitoring system is connected with a sensor system, the sensor system comprises a concentration meter I (4), a concentration meter II (26), a flow meter I (5), a flow meter II (9), a flow meter III (13), a flow meter IV (27), a turbidity meter (16), a pressure sensor (23) and a torque sensor (31), wherein the turbidity meter (16) is positioned inside an overflow chute (17), the pressure sensor (23) is positioned at the bottom of a bottom straight barrel (22), and the torque sensor (31) is positioned outside a rake frame (20);
the water guide rods of the rake rack (20) are transversely staggered, and the height of the rake rack (20) is 2/3 of the height of the thickening tank;
a PLC control system (38) in the automatic regulation and control system is connected with a valve, a conveying pump and a driving motor (14), wherein the valve comprises a first feeding valve (2), a second feeding valve (7), a third feeding valve (11), a first underflow valve (24), a second underflow valve (29), a first return valve (33) and a second return valve (35), and the conveying pump comprises a first conveying pump (3), a second conveying pump (8), a third conveying pump (12) and a fourth conveying pump (25);
the accurate monitoring and regulating method of the paste thickener adopting the self-adaptive underflow concentration regulation comprises the following steps:
s1: the tailing slurry, dilution water and a flocculating agent enter a central cylinder (15), and a shearing and dewatering system is started to realize the thickening of the tailing slurry, wherein the mass concentration of the underflow of the paste thickener is more than or equal to 70 percent;
s2: setting the target underflow mass concentration according to the strength of a filling body required by filling paste, and automatically regulating and controlling by an automatic regulating and controlling system so as to achieve the target underflow mass concentration;
s3: the monitoring system monitors a concentration meter I (4), a concentration meter II (26), a flow meter I (5), a flow meter II (9), a flow meter III (13), a flow meter IV (27), a turbidimeter (16), a pressure sensor (23) and a torque sensor (31) in real time, monitoring data are transmitted to the prediction system, the prediction system predicts the underflow concentration, overflow turbidity and torque of the next time period, the automatic regulation and control system sends regulation and control instructions to a valve, a delivery pump and a driving motor (14) according to the prediction result to carry out real-time regulation and control, the underflow quality concentration is ensured to be stabilized near a target value, the fluctuation range is +/-1.5%, a underflow valve II (29) is opened, and paste is delivered to the underground for filling through a delivery pipe (30).
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| CN110090478B (en) * | 2019-05-06 | 2020-06-02 | 北京科技大学 | Intelligent control method for deep cone thickener in filling scene |
| CN110411896B (en) * | 2019-08-27 | 2024-07-12 | 中国恩菲工程技术有限公司 | Thickening device and method capable of monitoring concentration of tailing pulp in real time |
| CN110542626A (en) * | 2019-09-10 | 2019-12-06 | 北京科技大学 | rheometer-based tailing dewatering performance detection device and use method thereof |
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| CN112619214B (en) * | 2020-12-11 | 2022-05-03 | 安徽盛世开元装备科技有限公司 | Method for solving underflow discharge of deep cone thickener |
| CN112445136B (en) * | 2020-12-16 | 2022-02-22 | 北京科技大学 | Thickener prediction control method and system based on continuous time neural network |
| CN113509753A (en) * | 2021-07-15 | 2021-10-19 | 金诚信矿业管理股份有限公司 | Full-tailing intelligent thickener device and system |
| CN114956281A (en) * | 2022-04-18 | 2022-08-30 | 华北理工大学 | Micro-fine particle tailing concentration flocculation sedimentation equipment |
| CN114993898B (en) * | 2022-04-18 | 2024-06-18 | 金诚信矿业管理股份有限公司 | Intelligent tailing thickening experiment system and method |
| CN115138107B (en) * | 2022-08-02 | 2024-03-12 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Gold mine tailing pulp dynamic flocculation sedimentation simulation experiment system and method |
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| CN105435494B (en) * | 2015-12-11 | 2017-04-12 | 山西晋煤集团技术研究院有限责任公司 | Thickener automatic drug dosing system and method thereof |
| CN105834012B (en) * | 2016-05-19 | 2017-11-17 | 中冶北方（大连）工程技术有限公司 | Wholegrain level tailing cemented filling material starches continuous preparation system and its preparation technology |
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2018
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