CN210252707U - Multi-process flotation liquid level automatic control practical training device - Google Patents
Multi-process flotation liquid level automatic control practical training device Download PDFInfo
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- CN210252707U CN210252707U CN201920991852.XU CN201920991852U CN210252707U CN 210252707 U CN210252707 U CN 210252707U CN 201920991852 U CN201920991852 U CN 201920991852U CN 210252707 U CN210252707 U CN 210252707U
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Abstract
The utility model provides a real device of instructing of many technology flotation liquid level automatic control belongs to flotation technical field. The device includes the agitator, give the ore deposit pump, the flotation column, solenoid valve, the transfer pond, the concentrate pond, the tailing pond, the pipeline, level sensor, flow sensor, controller and computer, wherein, the flotation column is three, flotation column and agitator, the transfer pond, the concentrate pond, through the pipe connection between the tailing pond, set up the ore deposit pump outside agitator and the transfer pond, the flotation column lower part sets up solenoid valve, flotation column upper portion sets up level sensor, set up flow sensor on the pipeline of giving the ore deposit pump connection, the controller is gathered level sensor and flow sensor data, and control solenoid valve, connect the computer simultaneously. The device can realize real standard of multiple flotation process liquid level control, and the device is used for teaching and scientific research of multi-process flotation liquid level automatic control, has improved the real specialty, the demonstration and the practicality of instructing system of liquid level control simply easily to realize.
Description
Technical Field
The utility model relates to a flotation technical field especially indicates a real device of instructing of many technology flotation liquid level automatic control.
Background
At present, the information technology of China and the traditional mineral processing technology are continuously and deeply fused, the mineral processing process is taken as a typical flow industry, and the online detection and control of the mineral processing process are realized, so that the significance of reducing the working intensity of workers and improving the production efficiency is great; the flotation method is one of the most widely applied separation modes in the mineral processing process, the liquid level of a flotation column is easily interfered by the outside, and the separation product index and the production stability are influenced by too high or too low flotation liquid level, so that the flotation method is an important process parameter needing to be controlled in the flotation process link, and the control of the flotation liquid level is different due to different flotation processes and different required control strategies. The existing liquid level control system has large difference and poor pertinence, a typical actual flotation liquid level control device and a typical actual flotation liquid level control system are lacked in the research of an actual flotation liquid level control technology, the self-built system has the defects of single flotation process, single control strategy and poor representativeness, and a typical and systematic related research, teaching demonstration and practical training device for mineral processing process detection and control is lacked. The utility model relates to a real device and method of instructing of many technology flotation liquid level automatic control for realize the changeable flotation liquid level automatic control device of flotation technology, flotation liquid level control system procedure can carry out the secondary development, can be used to scientific research, teaching and multiple flotation process flow's automatic liquid level control.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a real device of instructing of many technologies flotation liquid level automatic control, the device simple structure, the small investment, easily realize that the demonstration nature is strong, the flotation process is changeable, control system is various and but control program secondary development.
The device comprises a stirring barrel, a feeding pump, flotation columns, electromagnetic valves, a transfer tank, a concentrate tank, a tailing tank, pipelines, liquid level sensors, flow sensors, a controller and a computer, wherein the flotation columns are three and are respectively a first flotation column, a second flotation column and a third flotation column, the flotation columns are connected with the stirring barrel, the transfer tank, the concentrate tank and the tailing tank through pipelines, the first feeding pump and the second feeding pump are respectively arranged outside the stirring barrel and the transfer tank, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively arranged at the lower parts of the first flotation column, the second flotation column and the third flotation column, the first liquid level sensor, the second liquid level sensor and the third liquid level sensor are respectively arranged on the first flotation column, the second flotation column and the third flotation column, the first flow sensor and the second flow sensor are respectively arranged on the pipelines connected with the first feeding pump and the second feeding pump, the controller collects data of the liquid level sensor and the flow sensor, controls the electromagnetic valve and is connected with the computer.
And the lower parts of the first flotation column, the second flotation column and the third flotation column are respectively provided with a first flotation column height adjusting device, a second flotation column height adjusting device and a third flotation column height adjusting device.
The upper parts of the first flotation column, the second flotation column and the third flotation column are respectively connected with a first flotation column foam product pipeline, a second flotation column foam product pipeline and a third flotation column foam product pipeline.
The bottoms of the first flotation column, the second flotation column and the third flotation column are respectively connected with a first flotation column tailing product pipeline, a second flotation column tailing product pipeline and a third flotation column tailing product pipeline.
Conveying the pulp mixed in the stirring barrel to a first flotation column by a first feeding pump, determining the trend of foam products and tailing products of the first flotation column according to a selected process, and feeding the foam products and the tailing products into a second flotation column and a third flotation column for flotation; the final concentrate flows automatically to the concentrate tank, and the final tailings flow automatically to the tailing tank.
The flotation products in the flotation columns are connected by pipelines in a self-flowing mode, if the flotation products are conveyed to the next flotation column, the flotation products are conveyed to the transfer tank in a self-flowing mode, and then ore pulp is fed into the next flotation column through the second ore feeding pump.
The controller controls signals to adjust the opening of the electromagnetic valve, so that the liquid level of the flotation column is stabilized at a given value.
The device determines the height difference of three flotation columns and the connection and arrangement mode of connecting pipelines according to the process requirements, and can realize any one of the first-stage flotation, one-rough one-fine, one-rough two-fine, one-rough one-fine middling recleaning and two-rough one-fine flotation processes.
The flotation column is any one of a counter-current flotation column, a micro-bubble flotation column and a filling medium flotation column, and the liquid level sensor is any one of a buoyancy type liquid level meter, a static pressure type liquid level meter, a capacitance type liquid level meter, a resistance type liquid level meter, an ultrasonic liquid level meter and a microwave liquid level meter.
The liquid level control of the first flotation column, the second flotation column and the third flotation column is realized by detecting the liquid level values of the three flotation columns through a first liquid level sensor, a second liquid level sensor and a third liquid level sensor controller, comparing the liquid level values with signals of given values, converting the liquid level values into electric signals and inputting the electric signals into a control system, calculating and outputting control signals through the control system according to a control rule, connecting the control system with a flotation column electromagnetic valve, regulating the opening of the electromagnetic valve through the control signals to enable the liquid level of the flotation columns to be stabilized at the given values, connecting the controller with a computer, and enabling configuration software of the computer to have the functions of selecting a process mode, selecting the control rule, displaying detected liquid level and flow data in real time, storing liquid level detection data, inquiring liquid level historical data, alarming.
The controller can realize automatic liquid level control, and the automatic liquid level control selects a control mode and a control rule according to the flotation process, wherein the control rule comprises PID control and fuzzy control, and the control mode comprises single-loop control, cascade control, feedforward control and uniform control.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
in the scheme, the multi-process flotation liquid level automatic control practical training device is realized, different flotation processes can be mutually and flexibly converted by changing the connection mode of the hose, meanwhile, the liquid level control can be realized by selecting various automatic control modes and control rules, the control of the liquid level of the flotation columns in the process flow of combining single, two or three flotation columns is realized, the demonstration, practical training and research purposes of research and teaching can be realized, the manpower and material resources consumed when proper equipment is selected and replaced and the liquid level is kept stable and adjusted are saved, the cost for constructing pipelines with different connection modes is also reduced, meanwhile, the control program of the system can be secondarily developed, and the device is suitable for various application purposes and requirements, simple in structure, easy to realize, low in investment, strong in applicability, good in effect and wide in practicability.
Drawings
Fig. 1 is the utility model discloses a real device schematic structure of instructing of many technology flotation liquid level automatic control.
Wherein: 1-a stirring barrel; 2-a first flotation column; 3-a second flotation column; 4-a concentrate pond; 5-a transfer pool; 6-a third flotation column; 7-a tailing pond; 8-a controller; 9-a computer; 1/1-first feed pump; 2/1-first flotation column froth product conduit; 2/2-first solenoid valve; 2/3-first flotation column tailings product conduit; 2/4-first flotation column height adjusting device; 3/1-second flotation column froth product conduit; 3/2-second solenoid valve; 3/3-second flotation column tailing product conduit; 3/4-second flotation column height adjustment means; 5/1-a second feed pump; 6/1-third flotation column froth product conduit; 6/2-third solenoid valve; 6/3-third flotation column tailings product conduit; 6/4-third flotation column height adjustment means; s1 — first flow sensor; s2-a third level sensor; s3 — a first level sensor; s4-a second liquid level sensor; s5-second flow sensor.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a real device of instructing of many technology flotation liquid level automatic control.
As shown in figure 1, the device comprises a stirring barrel 1, a feeding pump, a flotation column, three electromagnetic valves, a transfer tank 5, a concentrate tank 4, a tailing tank 7, a pipeline, a liquid level sensor, a flow sensor, a controller 8 and a computer 9, wherein the flotation column comprises a first flotation column 2, a second flotation column 3 and a third flotation column 6, the flotation column is connected with the stirring barrel 1, the transfer tank 5, the concentrate tank 4 and the tailing tank 7 through pipelines, the stirring barrel 1 and the transfer tank 5 are respectively provided with the first feeding pump 1/1 and the second feeding pump 5/1 outside, the lower parts of the first flotation column 2, the second flotation column 3 and the third flotation column 6 are respectively provided with the first electromagnetic valve 2/2, the second electromagnetic valve 3/2 and the third electromagnetic valve 6/2, the first flotation column 2, the second flotation column 3 and the third flotation column 6 are respectively provided with the first liquid level sensor S3, the first liquid level sensor S3 and the second liquid level sensor S3, The second liquid level sensor S4 and the third liquid level sensor S2, set up first flow sensor S1 and second flow sensor S5 on the pipeline that first ore feeding pump 1/1 and second ore feeding pump 5/1 are connected respectively, controller 8 gathers liquid level sensor and flow sensor data, controller 8 control solenoid valve, controller 8 connects computer 9.
The lower parts of the first flotation column 2, the second flotation column 3 and the third flotation column 6 are respectively provided with a first flotation column height adjusting device 2/4, a second flotation column height adjusting device 3/4 and a third flotation column height adjusting device 6/4.
The upper parts of the first flotation column 2, the second flotation column 3 and the third flotation column 6 are respectively connected with a first flotation column foam product pipeline 2/1, a second flotation column foam product pipeline 3/1 and a third flotation column foam product pipeline 6/1.
The bottoms of the first flotation column 2, the second flotation column 3 and the third flotation column 6 are respectively connected with a first flotation column tailing product pipeline 2/3, a second flotation column tailing product pipeline 3/3 and a third flotation column tailing product pipeline 6/3.
In practical application, the height difference of three flotation columns and the connection arrangement mode of connecting pipelines are determined according to process requirements, and the first-stage flotation, the first rough and first fine, the first rough and second fine, the first rough and first fine middling recleaning and the second rough and second fine flotation processes can be realized; the control mode and the control rule can be selected according to the flotation process, the practical training of the liquid level control of various flotation processes is realized, a liquid level sensor detects that the liquid level of the flotation column deviates from the set value and converts the signal into an electric signal to be input and controlled, a controller calculates and outputs a control signal according to the control rule, the controller is connected with a flotation column electromagnetic valve, the control signal adjusts the opening of the electromagnetic valve to enable the liquid level of the flotation column to be stabilized at the set value, the controller is connected with a computer, and the program of a flotation liquid level control system can.
When the process is designed as a rough-fine-sweeping process, the height adjusting device 2/4 of the first flotation column is adjusted, so that the foam product of the first flotation column 2 can automatically flow into the ore feeding port of the second flotation column 3 through the foam product pipeline 2/1 of the first flotation column, the foam product pipeline 2/1 of the first flotation column is connected with the ore feeding port of the second flotation column 3, the foam product pipeline 2/1 of the first flotation column is connected with the transfer pond 5, the foam product pipeline 3/1 of the second flotation column is connected with the concentrate pond 4, the tailing product pipeline 3/3 of the second flotation column is connected with the stirring barrel 1, the second ore feeding pump 5/1 is connected with the ore feeding port of the third flotation column 6, the foam product pipeline 6/1 of the third flotation column is connected with the stirring barrel 1, and the tailing product pipeline 6/3 of the third flotation column is connected with the tailing pond 7; the slurry mixed in the stirring barrel 1 is conveyed to a first flotation column 2 by a first feeding pump 1/1, the foam product and the tailing product of the first flotation column 2 are determined according to the selected process and fed into a second flotation column 3 and a third flotation column 6 for flotation, the flotation products automatically flow and are connected by a pipeline, the flotation products are conveyed to the next flotation column and automatically flow to a transfer tank 5, the slurry is fed into the next flotation column by the feeding pump, the final concentrate automatically flows to a concentrate tank 4, and the final tailing automatically flows to a tailing tank 7; the first liquid level sensor S3, the second liquid level sensor S4 and the third liquid level sensor S2 respectively detect the liquid level values of the first flotation column 2, the second flotation column 3 and the third flotation column 6 and input the liquid level values into the controller 8, the first flow sensor S1 and the second flow sensor S5 respectively detect the flow rates of the first feeding pump 1/1 and the second feeding pump 5/1 and input the flow rates into the controller 8, the controller 8 is connected with the first electromagnetic valve 2/2, the second electromagnetic valve 3/2, the third electromagnetic valve 6/2 and the computer 9 of the flotation columns, control signals adjust the opening degrees of the first electromagnetic valve 2/2, the second electromagnetic valve 3/2 and the third electromagnetic valve 6/2 to enable the liquid levels of the first flotation column 2, the second flotation column 3 and the third flotation column 6 to be stabilized at given values, and the controller 8 is connected with the computer 9.
Example 1
Taking the separation process flow of a single flotation column as an example, selecting a reverse flow flotation column, connecting a foam product pipeline of a first flotation column with a concentrate pond, connecting tailings of the first flotation column with a tailing pond, feeding ore pulp of a stirring barrel into the first flotation column by an ore feeding pump, feeding foam products into the concentrate pond, feeding tailing products into the tailing pond, inputting a liquid level value detected by a liquid level sensor of the first flotation column into a controller, finishing the detection of a difference value between a liquid level signal and a given value by the controller, selecting a single-loop control mode, wherein the control rule is a classical control PID algorithm, calculating an output signal, connecting the controller with an electromagnetic valve of the first flotation column, adjusting the opening degree of the electromagnetic valve of a battery, finishing the control of the liquid level of the flotation column, connecting the controller with a computer, and configuring software having a process selection mode, a control selection rule, displaying the detected liquid level and flow data in real time, storing the liquid, Alarming, modifying control parameters and printing reports.
Example 2
Taking a rough-fine-sweeping separation process flow consisting of 3 flotation columns as an example, selecting a reverse flow flotation column, selecting a rough-fine-sweeping process by computer configuration software, selecting a single-loop control mode for a first flotation column and a second flotation column, adopting a PID control law, selecting uniform control for liquid level control of a third flotation column, adopting the PID control law, enabling a foam product of the first flotation column to enter a second flotation column, feeding tailings of the first flotation column into the second flotation column by a feeding pump of a transfer tank, enabling the foam product of the second flotation column to automatically flow into a concentrate tank as final concentrate, enabling tailings of the second flotation column to return to a stirring tank, enabling a foam product of the third flotation column to automatically flow into the stirring tank, enabling the tailings product of the third flotation column to enter the tailings tank as final tailings, detecting liquid levels of the three flotation columns by a first liquid level sensor, a second liquid level sensor and a third sensor, and inputting the liquid levels into a controller, the foam products and tailing products of the second flotation column and the third flotation column are connected with a concentrate tank through pipelines, tailing of the first flotation column is connected with the tailing tank, ore pulp of a stirring barrel is fed into the first flotation column through an ore feeding pump, the foam products enter the concentrate tank, tailing products enter the tailing tank, liquid level sensors of the three flotation columns detect liquid level values and input the liquid level values into a controller, the controller is used for finishing detection and calculation of output signals and is connected with electromagnetic valves input into the three flotation columns through the controller, the opening degree of the valves of the batteries is adjusted, the liquid level of the flotation columns is controlled, the controller is connected with a computer, and configuration software has the functions of selecting a process mode, selecting a control rule, displaying detected liquid level and flow data in real time, storing liquid level detection data, inquiring liquid level historical data, alarming, modifying control parameters and printing reports.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a real device of instructing of multi-process flotation liquid level automatic control which characterized in that: comprises a mixing tank (1), a feeding pump, flotation columns, electromagnetic valves, a transfer tank (5), a concentrate tank (4), a tailing tank (7), a pipeline, a liquid level sensor, a flow sensor, a controller (8) and a computer (9), wherein the flotation columns are three, namely a first flotation column (2), a second flotation column (3) and a third flotation column (6), the flotation columns are connected with the mixing tank (1), the transfer tank (5), the concentrate tank (4) and the tailing tank (7) through pipelines, the mixing tank (1) and the transfer tank (5) are respectively provided with a first feeding pump (1/1) and a second feeding pump (5/1), the lower parts of the first flotation column (2), the second flotation column (3) and the third flotation column (6) are respectively provided with a first electromagnetic valve (2/2), a second electromagnetic valve (3/2) and a third electromagnetic valve (6/2), first flotation column (2), second flotation column (3) and third flotation column (6) set up first level sensor (S3) respectively, second level sensor (S4) and third level sensor (S2), set up first flow sensor (S1) and second flow sensor (S5) respectively on the pipeline that first ore feeding pump (1/1) and second ore feeding pump (5/1) are connected, controller (8) gather level sensor and flow sensor data, controller (8) control solenoid valve, computer (9) are connected in controller (8).
2. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: and the lower parts of the first flotation column (2), the second flotation column (3) and the third flotation column (6) are respectively provided with a first flotation column height adjusting device (2/4), a second flotation column height adjusting device (3/4) and a third flotation column height adjusting device (6/4).
3. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the upper parts of the first flotation column (2), the second flotation column (3) and the third flotation column (6) are respectively connected with a first flotation column foam product pipeline (2/1), a second flotation column foam product pipeline (3/1) and a third flotation column foam product pipeline (6/1).
4. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the bottoms of the first flotation column (2), the second flotation column (3) and the third flotation column (6) are respectively connected with a first flotation column tailing product pipeline (2/3), a second flotation column tailing product pipeline (3/3) and a third flotation column tailing product pipeline (6/3).
5. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the slurry after size mixing in the stirring barrel (1) is conveyed to a first flotation column (2) by a first feeding pump (1/1), the foam product and the tailing product of the first flotation column (2) are determined according to the selected process and fed into a second flotation column and a third flotation column for flotation; the final concentrate flows automatically to a concentrate tank (4), and the final tailings flow automatically to a tailing tank (7).
6. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 5, characterized in that: the flotation products in the flotation columns are connected by pipelines in a self-flowing mode, if the flotation products are conveyed to the next flotation column, the flotation products are conveyed to the transfer tank (5) in a self-flowing mode, and ore pulp is fed into the next flotation column through the second ore feeding pump (5/2).
7. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the controller (8) controls signals to adjust the opening of the electromagnetic valve, so that the liquid level of the flotation column is stabilized at a given value.
8. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the device can realize any one of the processes of one-section flotation, one-rough one-fine, one-rough two-scanning, one-rough two-fine, one-rough one-fine middling recleaning and two-rough one-fine flotation.
9. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the flotation column is any one of a counter-current flotation column, a micro-bubble flotation column and a filling medium flotation column, and the liquid level sensor is any one of a buoyancy type liquid level meter, a static pressure type liquid level meter, a capacitance type liquid level meter, a resistance type liquid level meter, an ultrasonic liquid level meter and a microwave liquid level meter.
10. The automatic control practical training device for the flotation liquid level of the multi-process according to claim 1, characterized in that: the controller (8) can realize automatic liquid level control, and the automatic liquid level control selects a control mode and a control rule according to the flotation process, wherein the control rule comprises PID control and fuzzy control, and the control mode comprises single-loop control, cascade control, feedforward control and uniform control.
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