CN215197602U - Flotation column and liquid level regulation and control system thereof - Google Patents
Flotation column and liquid level regulation and control system thereof Download PDFInfo
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- CN215197602U CN215197602U CN202120103157.2U CN202120103157U CN215197602U CN 215197602 U CN215197602 U CN 215197602U CN 202120103157 U CN202120103157 U CN 202120103157U CN 215197602 U CN215197602 U CN 215197602U
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- 239000007788 liquid Substances 0.000 title claims abstract description 76
- 238000005188 flotation Methods 0.000 title claims abstract description 48
- 238000003756 stirring Methods 0.000 claims abstract description 50
- 239000002002 slurry Substances 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 230000001276 controlling effect Effects 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000005381 potential energy Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 description 10
- 239000004576 sand Substances 0.000 description 9
- 238000013019 agitation Methods 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a flotation column and a liquid level regulating system thereof, which comprises a lifting stirrer, a stirring tank body and a lifting impeller arranged in the stirring tank body, wherein the stirring tank body is provided with a slurry inlet and a slurry outlet; the liquid level detection device is arranged on the column body and used for sensing the liquid level in the column body; the controller is used for receiving a feedback signal of the liquid level sensor and controlling the rotating speed of the lifting impeller according to the received feedback signal; one end of the pulp discharging pipe is communicated with the pulp discharging port at the bottom of the column body, and the other end of the pulp discharging pipe is communicated with the pulp inlet; and the ore pulp entering from the pulp discharge pipe is lifted to a set height under the action of the lifting impeller and then is discharged from the pulp outlet. This application make full use of the ore pulp potential energy of upper reaches cylinder utilizes lower energy consumption can promote the ore pulp to certain height to satisfy the same horizontal feed requirement of configuration cylinder of low reaches.
Description
Technical Field
The utility model belongs to the technical field of mineral processing flotation, especially, relate to a flotation column and liquid level regulation and control system thereof.
Background
A counter-current flotation column (abbreviated as "flotation column") is a flotation device in which slurry is fed from the top of a cylindrical container by means of a bubble generator provided at the bottom of the container, and the slurry flowing downward collides with rising bubbles, so that the bubbles trap and adsorb floating minerals (termed "mineralization" in the technical term) and are discharged from the top of the container. Thereby achieving separation between minerals.
The aim of the flotation column is to separate the valuable minerals from the unusable minerals, usually the valuable minerals are carried with the gas bubbles from the upper part of the flotation column, while the unusable minerals are discharged from the bottom part of the flotation column, the control and regulation of the liquid level of which is important during operation of the flotation column, and fluctuations in the liquid level will affect the separation indicator of the flotation.
Referring to fig. 1, a valve 8 control system is adopted for liquid level control of a flotation column at present, and comprises a liquid level detection device 2 (composed of an ultrasonic sensor 201 and a buoy 202) for detecting the change of the liquid level in a container, and a controller 3 connected with the liquid level detection device 2, wherein the liquid level detection device 2 inputs a detected liquid level signal into the controller 3, and the controller 3 outputs a corresponding signal to control the opening of the valve 8. The control principle is as follows: when the liquid level of the column 7 rises, the large valve 8 is opened to increase the ore discharge amount at the bottom, the ore pulp amount discharged by the column 7 is larger than the fed ore pulp amount, and the ore pulp liquid level of the column 7 is reduced; similarly, when the liquid level of the ore pulp in the column 7 is reduced, the valve 8 is closed to reduce the ore discharge amount at the bottom, and the liquid level is raised, so that the aim of stabilizing the liquid level is fulfilled.
In the traditional liquid level control, the size of an open valve 8 is mostly adopted to control and adjust the flow of ore pulp so as to achieve the aim of stabilizing the liquid level in the column body 7, and the method is feasible. However, this approach has some disadvantages:
1. the overflowing medium of the valve 8 is ore pulp, the ore pulp often passes through the overflowing part of the valve 8 at a high speed, ore particles (particularly hard particles and coarse particles) in the ore pulp cause the overflowing part of the valve 8 to be easily abraded, and the valve 8 is frequently replaced, so that the operation rate of equipment is influenced.
2. The potential energy of the ore pulp is reduced by the pressure reduction control of the valve 8, when the ore pulp enters the next operation equipment configured at the same height, the system needs to be additionally provided with lifting equipment such as a stirring tank body 101 and a sand pump 9 to feed the ore pulp into the next operation equipment, otherwise, the configuration height of the next operation equipment needs to be reduced, and therefore the energy consumption of the system is increased.
3. The discharge point height of ore pulp is less than the liquid level of equipment, and opens and exposes the row material, when follow-up operation equipment breaks down, causes the excessive accident of ore pulp easily, leads to environmental pollution and the loss of useful metal.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a flotation column and liquid level regulation and control system thereof, this regulation and control method adjusts the flow of ore pulp through the rotational speed of the impeller of control stirring lifting mechanism, and the ore pulp potential energy that simultaneously can make full use of upper reaches flotation column utilizes lower energy consumption to promote the ore pulp to certain height to satisfy the feed requirement of the same horizontal configuration flotation column of low reaches.
Therefore, the utility model discloses an aspect provides a flotation column liquid level control method, includes:
connecting a slurry discharge port at the bottom of the column body with a lifting stirrer through a slurry discharge pipe, wherein the lifting stirrer comprises a stirring tank body and a lifting impeller arranged in the stirring tank body;
starting a lifting stirrer to enable a lifting impeller to rotate, rapidly emptying the peripheral ore pulp by blades of the lifting impeller to form negative pressure, enabling the ore pulp to enter a stirring tank body from a pulp discharge pipe, and discharging the ore pulp from a liquid discharge port of the stirring tank body after the set height is lifted;
when the liquid level sensor on the column body senses that the liquid level in the column body is not at the set height, feeding back a signal to the controller;
the controller adjusts the rotating speed of the lifting impeller according to the received feedback signal, so that the slurry discharge speed of the slurry discharge pipe is controlled, and the liquid level in the column body is controlled at a set height.
The utility model discloses another aspect provides a flotation column liquid level control system, include:
the lifting stirrer comprises a stirring tank body and a lifting impeller arranged in the stirring tank body, and the stirring tank body is provided with a slurry inlet and a slurry outlet;
the liquid level detection device is arranged on the column body and used for sensing the liquid level in the column body;
the controller is used for receiving a feedback signal of the liquid level sensor and controlling the rotating speed of the lifting impeller according to the received feedback signal;
one end of the pulp discharging pipe is communicated with the pulp discharging port at the bottom of the column body, and the other end of the pulp discharging pipe is communicated with the pulp inlet;
and the ore pulp entering from the pulp discharge pipe is lifted to a set height under the action of the lifting impeller and then is discharged from the pulp outlet.
Specifically, a medicament adding port is arranged on the pulp discharging pipe.
Specifically, the slurry inlet is arranged at the bottom of the stirring tank body, and the slurry suction port of the lifting impeller is in butt joint with the slurry inlet.
Specifically, the stirring tank body is internally and vertically provided with a stirring shaft, the bottom end of the stirring shaft is connected with the lifting impeller, the stirring tank body is further provided with a motor for driving the stirring shaft to rotate, and the motor is electrically connected with the controller.
Specifically, the controller adopts a PLC controller.
Specifically, the liquid level detection device is composed of an ultrasonic liquid level sensor and a buoy.
The utility model discloses another aspect still provides an adopt above-mentioned structure liquid level regulation and control system's cylinder.
Compared with the prior art, the utility model discloses the beneficial effect who has lies in:
(1) the ore pulp potential energy of the upstream flotation column is fully utilized, and the ore pulp can be lifted to a certain height by utilizing lower energy consumption so as to meet the feeding requirement of the downstream flotation column configured at the same level.
(2) The chemical adding port is formed in the pulp inlet pipe at the lower part of the stirring tank body, and after the flotation chemical is added from the chemical adding port, the flotation chemical is uniformly mixed with the flotation chemical and the ore pulp without additionally increasing chemical stirring equipment by utilizing the complementary energy of the ore pulp lifting impeller.
(3) Promote agitator cooperation liquid level detection device and controller through one, realized liquid level control, ore pulp promptly and promoted the function of medicament stirring, compare traditional valve + stirring cell body and sand pump's structure, simplified equipment configuration, reduced equipment input cost, can not have the problem that need frequently change easy wearing and tearing such as valve, sand pump moreover.
(4) The production operation condition is improved, the failure rate is low compared with that of valves and sand pump equipment, the ore pulp runs in the system in a closed mode, the ore pulp is not prone to 'running, overflowing, dripping and leaking', and metal loss and environmental pollution are reduced.
(5) The utility model discloses more traditional liquid level control system energy-conservation, environmental protection, consumption reduction.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional flotation column liquid level control system;
FIG. 2 is a schematic structural view of a flotation column liquid level control system according to an embodiment of the present invention;
wherein: 1. lifting the stirrer; 101. a stirring tank body; 102. a stirring shaft; 103. lifting the impeller; 104. a motor; 2. a liquid level detection device; 201. an ultrasonic liquid level sensor; 202. a float bowl; 3. a controller; 4. a slurry discharge pipe; 5. a pulp inlet; 6. a pulp outlet; 7. a column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 2, a flotation column liquid level control system comprises a lifting stirrer 1, a liquid level detection device 2, a controller 3 and a slurry discharge pipe 4, wherein the lifting stirrer 1 comprises a stirring tank body 101 and a stirring shaft 102 vertically arranged in the stirring tank body 101, a lifting impeller 103 is arranged at the bottom end of the stirring shaft 102, a motor for driving the stirring shaft 102 to rotate is arranged on the stirring tank body 101, the motor and the liquid level detection device 2 are electrically connected with the controller 3, a slurry inlet 5 and a slurry outlet 6 are arranged on the stirring tank body 101, the liquid level detection device 2 is arranged on a column body 7 and used for sensing the liquid level in the column body 7, the controller 3 is used for receiving a feedback signal of the liquid level detection device 2, the rotating speed of the lifting impeller 103 is controlled according to the received feedback signal, one end of the pulp discharge pipe 4 is communicated with the pulp discharge port at the bottom of the column body 7, the other end of the pulp discharge pipe is communicated with the pulp inlet 5, and the pulp entering from the pulp discharge pipe 4 is lifted to a set height under the action of the lifting impeller 103 and then is discharged from the pulp outlet 6.
The flotation column liquid level regulation and control system of the embodiment makes full use of the pulp potential energy of the upstream column 7, and can lift the pulp to a certain height by using lower energy consumption so as to meet the feeding requirement of the downstream column 7 which is horizontally configured.
In some possible embodiments, a chemical adding port (not shown in the figures) is arranged on the slurry discharging pipe 4, and the slurry outlet 6 of the stirring tank body 101 is communicated with the feed port of the column body 7 located at the downstream.
In this embodiment, be equipped with the medicament on arranging thick liquid pipe 4 and add the mouth, the flotation reagent adds the back from the medicament, utilizes the complementary energy of ore pulp promotion impeller 103, with flotation reagent and ore pulp misce bene, need not additionally to increase medicament agitated vessel.
In addition, this embodiment is through 1 cooperation liquid level detection device 2 of a promotion agitator and controller 3, has realized the function of liquid level control, ore pulp promotion and medicament stirring promptly, compares traditional valve + stirring cell body 101 and sand pump's structure, has simplified equipment configuration, has reduced equipment input cost, can not have the problem that need frequently change easy wearing and tearing such as valve, sand pump moreover.
Referring to fig. 2, it can be understood that, in practical application, the slurry inlet 5 is disposed in the middle of the bottom end of the agitation tank 101, the slurry suction port of the lifting impeller 103 is in butt joint with the slurry inlet 5, the lifting impeller 103 includes upper and lower disks and a spiral rib disposed between the upper and lower disks, the lifting impeller 103 is fixed at the lower part of the agitation shaft 102, when the agitation tank 101 works, the agitation shaft 102 rotates to drive the lifting impeller 103 to rotate, slurry between the upper and lower disks of the lifting impeller 103 is thrown out due to centrifugal force, the slurry is supplemented into the lifting impeller 103 through the slurry discharge pipe 4 and the slurry inlet 5 to enter the agitation tank 101 and is continuously pushed upwards, and finally enters the downstream column 7 from the slurry outlet 6 of the agitation tank 101.
In actual design, controller 3 can adopt the PLC controller, and liquid level detection device 2 can adopt ultrasonic wave level sensor 201 to add the structure of flotation pontoon 202, and liquid level detection device can also adopt floating ball formula level sensor, magnetism level sensor, pressure sensor, input level sensor or radar level sensor etc. of course.
Referring to fig. 2, in some possible embodiments, the bottom end surface of the column 7 is an inclined surface, and the slurry outlet is arranged at the lowest end of the inclined surface, so that the tailings can be discharged. As regards the cross-sectional shape of the flotation cell 1, it can be designed round, square or other.
Referring to fig. 2, the present application further provides a flotation column using the liquid level control system with the above structure, and other structures of the flotation column may adopt the prior art, which is not described herein again.
Referring to fig. 2, the present application also provides a method for controlling a liquid level of a flotation column, comprising:
a slurry discharge port at the bottom of the column body 7 is connected with a lifting stirrer 1 through a slurry discharge pipe 4, and the lifting stirrer 1 comprises a stirring tank body 101 and a lifting impeller 103 arranged in the stirring tank body 101;
starting the lifting stirrer 1 to enable the lifting impeller 103 to rotate, and rapidly emptying the surrounding ore pulp by blades of the lifting impeller 103 to form negative pressure, so that the ore pulp enters the stirring tank body 101 from the pulp discharge pipe 4 and is discharged from a liquid discharge port of the stirring tank body 101 after being lifted to a set height;
when the liquid level detection device 2 on the column body 7 senses that the liquid level in the column body 7 is not at the set height, feeding back a signal to the controller 3;
the controller 3 adjusts the rotating speed of the lifting impeller 103 according to the received feedback signal, so as to control the slurry discharging speed of the slurry discharging pipe 4 and control the liquid level in the column body 7 at a set height.
The method for regulating the liquid level of the flotation column provided by the embodiment makes full use of the potential energy of the ore pulp of the upstream column 7, and can lift the ore pulp to a certain height by using lower energy consumption so as to meet the feeding requirement of the downstream column 7 which is configured in the same horizontal direction.
In some embodiments, the slurry outlet pipe 4 is provided with a chemical adding port, and the flotation chemical added from the chemical adding port enters the feed inlet of the downstream column 7 from the slurry outlet 6 of the agitation tank 101 after being agitated and mixed with the slurry in the agitation tank 101.
The method for regulating and controlling the liquid level of the flotation column provided by the embodiment has the following advantages:
(1) be equipped with the medicament on stirring tank body 101 and add the mouth, the flotation reagent adds the back from the medicament, utilizes the complementary energy of ore pulp promotion impeller 103, can be with flotation reagent and ore pulp misce bene, need not additionally to increase medicament agitated vessel.
(2) Promote 1 cooperation liquid level detection device 2 and controller 3 through one, realized the function of liquid level control, ore pulp promotion and medicament stirring promptly, compare traditional valve + stirring cell body 101 and sand pump's structure, simplified equipment configuration, reduced equipment input cost, can not have the problem that need frequently change easy wearing and tearing such as valve, sand pump moreover.
(3) The production operation condition is improved, the failure rate is low compared with that of valves and sand pump equipment, the ore pulp runs in the system, the ore pulp is not easy to run, overflow, drip and leak, and the metal loss and the environmental pollution are reduced.
(4) The utility model discloses more traditional liquid level control system energy-conservation, environmental protection, consumption reduction.
The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a flotation column liquid level control system which characterized in that includes:
the lifting stirrer (1) comprises a stirring tank body (101) and a lifting impeller (103) arranged in the stirring tank body (101), wherein a slurry inlet (5) and a slurry outlet (6) are formed in the stirring tank body (101);
the liquid level detection device (2) is arranged on the column body (7) and is used for sensing the liquid level in the column body (7);
the controller (3) is used for receiving a feedback signal of the liquid level detection device (2) and controlling the rotating speed of the lifting impeller (103) according to the received feedback signal;
one end of the pulp discharging pipe (4) is communicated with the pulp discharging port at the bottom of the column body (7), and the other end of the pulp discharging pipe is communicated with the pulp inlet (5);
the slurry entering from the slurry discharge pipe (4) is lifted to a set height under the action of the lifting impeller (103) and then is discharged from the slurry outlet (6).
2. The flotation column level control system according to claim 1, wherein: the slurry discharge pipe (4) is provided with a medicament adding port.
3. The flotation column liquid level regulating system according to claim 1 or 2, characterized in that: the slurry inlet (5) is arranged at the bottom of the stirring tank body (101), and a slurry suction port of the lifting impeller (103) is in butt joint with the slurry inlet (5).
4. The flotation column liquid level regulating system according to claim 1 or 2, characterized in that: a stirring shaft (102) is vertically arranged in the stirring tank body (101), the bottom end of the stirring shaft (102) is connected with the lifting impeller (103), a motor (104) for driving the stirring shaft (102) to rotate is further arranged on the stirring tank body (101), and the motor (104) is electrically connected with the controller (3).
5. The flotation column liquid level regulating system according to claim 1 or 2, characterized in that: the controller (3) adopts a PLC (programmable logic controller) controller (3).
6. The flotation column liquid level regulating system according to claim 1 or 2, characterized in that: the liquid level detection device (2) is formed by combining an ultrasonic liquid level sensor (201) and a buoy (202).
7. A flotation column, characterized by: a flotation column level control system as claimed in any one of claims 1 to 6 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120103157.2U CN215197602U (en) | 2021-01-14 | 2021-01-14 | Flotation column and liquid level regulation and control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120103157.2U CN215197602U (en) | 2021-01-14 | 2021-01-14 | Flotation column and liquid level regulation and control system thereof |
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| CN215197602U true CN215197602U (en) | 2021-12-17 |
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| CN202120103157.2U Expired - Fee Related CN215197602U (en) | 2021-01-14 | 2021-01-14 | Flotation column and liquid level regulation and control system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934481A (en) * | 2021-01-14 | 2021-06-11 | 中南大学 | Flotation column and liquid level regulation system and method thereof |
-
2021
- 2021-01-14 CN CN202120103157.2U patent/CN215197602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934481A (en) * | 2021-01-14 | 2021-06-11 | 中南大学 | Flotation column and liquid level regulation system and method thereof |
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Granted publication date: 20211217 |