CN102638219B - Permanent magnet drive system of flotation machine - Google Patents
Permanent magnet drive system of flotation machine Download PDFInfo
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- CN102638219B CN102638219B CN201210103002.4A CN201210103002A CN102638219B CN 102638219 B CN102638219 B CN 102638219B CN 201210103002 A CN201210103002 A CN 201210103002A CN 102638219 B CN102638219 B CN 102638219B
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- permanent magnet
- magnet drive
- frequency conversion
- drive motor
- conversion tank
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Abstract
The invention relates to a permanent magnet drive system of a flotation machine. The permanent magnet drive system is applied to the flotation machine for mineral separation and comprises a frequency conversion cabinet and a permanent magnet drive motor. The frequency conversion cabinet is internally provided with a controller for controlling the start and stop of the permanent magnet drive motor and performing variable frequency speed control; the controller comprises a microprocessor; the permanent magnet drive motor is a vertically mounted permanent-magnet, brushless, multi-pole, multi-groove and low-speed motor, and a transmission shaft of the motor is directly connected with a stirring shaft of the flotation machine. The permanent magnet drive system has the following advantages of improving the power factor of the system, reducing input current and system reactive power, improving starting performance, avoiding impact on a power grid when starting, simplifying groove face equipment, reducing vibration of a main shaft, providing a speed regulation function, facilitating on-site regulation of the revolving speed of the main shaft, providing an economical operating mode, enabling the main shaft to run at a low speed so as to prevent sedimentation of ore pulp when production is suspended, and improving the working efficiency of a flotation system and reducing the energy consumption in production.
Description
Technical field
The present invention relates to permanent magnet drive system of flotation machine, for the flotation device of ore dressing, belong to the power electronics control technology field of preparation equipment.
Background technology
Flotation device is the capital equipment of non-ferrous metal ore, existing flotation device is as shown in Figure 2: drive motors 5 is asynchronous motor, slows down, drive shaft 3 to rotate by driving belt 6 with drive, there is flotation cell 4 shaft 3 lower end, and drive motors 5 is by power distribution cabinet 7 directly Starting mode startup.This structure is simple, reliable, is thus generally used.But still the part that comes with some shortcomings: 1) asynchronous motor power factor is low, during flotation device work idle large, input current is large; 2) impulse current when motor directly starts is large, brings adverse effect to other equipment run in electrical network; To ultra-large type flotation device, in order to reduce the impact of motor starting currents on electrical network, motor must adopt high pressure pattern; 3) main shaft need bear the radial load that belt tension brings, and increases swing during main shaft work, too increases the wearing and tearing of main shaft bearing; 4) belt according to working condition tensioning at any time, and need regularly replace, and adds maintenance workload and spare parts consumption; 5) spindle speed can not regulate, and producers are difficult to according to the process requirements adjustment speed of mainshaft.
Prior art also has a kind of technical scheme being motor shaft and being directly connected with shaft, but lacks the technical scheme of the speed regulating control of drive motors, can not realize real speed governing and control.
Summary of the invention
The object of the invention is: the shortcoming overcoming prior art, provide a kind of permanent magnet drive system of flotation machine, it can improve the power factor of system, reduces input current and System Reactive Power; Improve starting performance, the impact to electrical network when avoiding starting; Simplify groove face equipment, reduce spindle vibration; There is provided speed-regulating function, the convenient on-the-spot adjustment speed of mainshaft; Economic operation model is provided, when producing and suspending, main shaft low is run, prevent ore pulp from precipitating; The operating efficiency of raising system, reduces energy consumption.
Technical scheme of the present invention is:
A kind of permanent magnet drive system of flotation machine, it comprises frequency conversion tank and permanent magnet drive motor; There is a controller in described frequency conversion tank, start for controlling permanent magnet drive motor and shut down and carry out frequency control; Controller comprises a microprocessor; Permanent magnet drive motor is the motor of permanent magnetism, brushless, multipole, multiple-grooved and slow-speed of revolution form, and vertical installation, its power transmission shaft is directly connected with flotation device shaft.
Further technical scheme is:
Described permanent magnet drive system of flotation machine, its frequency conversion tank is provided with the coulometric analysis instrument for showing three-phase input voltage, electric current, power factor (PF) and active electrical degree electrical parameter; Frequency conversion tank is also provided with for carrying out speed setting to permanent magnet drive motor and showing the touch-screen of rotating speed and fault status information.
Described permanent magnet drive system of flotation machine, its frequency conversion tank is also provided with communication interface, and this communication interface is connected with the communication equipment for remote monitoring by signal-transmitting cable.
Described permanent magnet drive system of flotation machine, its permanent magnet drive motor has 36 pole 108 grooves.
Described permanent magnet drive system of flotation machine, its permanent magnet drive motor drive end bearing is self-aligning roller bearing.
Described permanent magnet drive system of flotation machine, its signal-transmitting cable is the shielded twisted-pair feeder of tool; Single-end earthed, synchronous signal line lays separately this signal-transmitting cable screen.
Described permanent magnet drive system of flotation machine, the power delivery cable that its frequency conversion tank is connected with power supply has screen.
Described permanent magnet drive system of flotation machine, the cabinet of its frequency conversion tank adopts quality steel plate Integral bending to form, and cabinet surrounding installs sealing strip; Frequency conversion tank is drawn by round electric connector external connection, and uses electromagnetic sealing liner containment; Fan mouth installs dust-separation web; Coulometric analysis instrument and touch-screen are arranged on cabinet door, and use electromagnetic sealing liner containment.
Obvious technical effects of the present invention:
Improve the power factor of system, reduce input current and System Reactive Power; Improve starting performance, the impact to electrical network when avoiding starting; Simplify groove face equipment, reduce spindle vibration; There is provided speed-regulating function, the convenient on-the-spot adjustment speed of mainshaft; Economic operation model is provided, when producing and suspending, main shaft low is run, prevent ore pulp from precipitating; Improve the operating efficiency of floatation system, reduce energy consumption.
Accompanying drawing explanation
Fig. 1 is permanent magnet drive system of flotation machine structured flowchart of the present invention;
Fig. 2 is the flotation device drive system pie graph of prior art.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Permanent magnet drive system of flotation machine, it comprises frequency conversion tank 1 and permanent magnet drive motor 2; There is a controller 1.1 in described frequency conversion tank 1, start for controlling permanent magnet drive motor 2 and shut down and carry out frequency control; Controller 1.1 comprises a microprocessor 1.11; Permanent magnet drive motor 2 is the motor of permanent magnetism, brushless, multipole, multiple-grooved and slow-speed of revolution form, and vertical installation, its power transmission shaft is directly connected with flotation device shaft 3.Described frequency conversion tank 1 is provided with the coulometric analysis instrument 1.2 for showing three-phase input voltage, electric current, power factor (PF) and active electrical degree electrical parameter; Frequency conversion tank 1 is also provided with for carrying out speed setting to permanent magnet drive motor 2 and showing the touch-screen 1.3 of rotating speed and fault status information.Described frequency conversion tank 1 is also provided with communication interface 1.4, and this communication interface 1.4 is connected with the communication equipment for remote monitoring by signal-transmitting cable; Such as: when production suspends, flotation device shaft 3 low cruise can be made, prevent ore pulp from precipitating, thus reduce energy consumption.Described permanent magnet drive motor 2 has 36 pole 108 grooves, and permanent magnet drive motor 2 rated speed is low, through optimization Electromagnetic Design, thermal design and stress design, motor is lightweight; Permanent magnet drive motor 2 drive end bearing is self-aligning roller bearing, for bearing the radial load that flotation device spindle swing brings; Non-driven-end bearing is angular contact bearing, the axial force that the weight for bearing permanent magnet drive motor 2 and rotors for flotation produces.Bearing adopts encapsulation process, protection better effects if.Described signal-transmitting cable is the shielded twisted-pair feeder of tool; Single-end earthed, synchronous signal line lays separately this signal-transmitting cable screen.The power delivery cable that described frequency conversion tank 1 is connected with power supply has screen.The cabinet of frequency conversion tank 1 adopts high-quality ST12 steel plate Integral bending to form, and cabinet surrounding installs sealing strip, for ensureing overall conducting continuity and sealing, and good capability of electromagnetic shielding; Frequency conversion tank 1 pair of external connection is drawn by round electric connector, and uses electromagnetic sealing liner containment; Fan mouth installs dust-separation web; Coulometric analysis instrument 1.2 and touch-screen 1.3 are arranged on cabinet door, and use electromagnetic sealing liner containment.Controller 1.1 for core with microprocessor 1.11, uses digital filtering, instruction redundancy, software trap, watchdog technique, input port signal duplicate detection, output port to repeat the Countermeasures on software anti-disturbances such as output, improves system rejection to disturbance ability.
The claims in the present invention protection range is not limited to above-described embodiment.
Claims (4)
1. a permanent magnet drive system of flotation machine, is characterized in that, it comprises frequency conversion tank (1) and permanent magnet drive motor (2); There is a controller (1.1) in described frequency conversion tank (1), start for controlling permanent magnet drive motor (2) and shut down and carry out frequency control; Controller (1.1) comprises a microprocessor (1.11); Permanent magnet drive motor (2) is permanent magnetism, the motor of brushless, multipole, multiple-grooved and slow-speed of revolution form, and vertical installation, its power transmission shaft is directly connected with flotation device shaft (3); Described frequency conversion tank (1) is provided with the coulometric analysis instrument (1.2) for showing three-phase input voltage, electric current, power factor (PF) and active electrical degree electrical parameter; Frequency conversion tank (1) is also provided with for carrying out speed setting to permanent magnet drive motor (2) and showing the touch-screen (1.3) of rotating speed and fault status information; Described frequency conversion tank (1) is also provided with communication interface (1.4), and this communication interface (1.4) is connected with the communication equipment for remote monitoring by signal-transmitting cable; Described permanent magnet drive motor (2) drive end bearing is self-aligning roller bearing; The cabinet of frequency conversion tank (1) adopts quality steel plate Integral bending to form, and cabinet surrounding installs sealing strip; Frequency conversion tank (1) is drawn by round electric connector external connection, and uses electromagnetic sealing liner containment; Fan mouth installs dust-separation web; Coulometric analysis instrument (1.2) and touch-screen (1.3) are arranged on cabinet door, and use electromagnetic sealing liner containment.
2. permanent magnet drive system of flotation machine according to claim 1, is characterized in that, described permanent magnet drive motor (2) has 36 pole 108 grooves.
3. permanent magnet drive system of flotation machine according to claim 1, is characterized in that, signal-transmitting cable is the shielded twisted-pair feeder of tool; Single-end earthed, synchronous signal line lays separately this signal-transmitting cable screen.
4. permanent magnet drive system of flotation machine according to claim 1, is characterized in that, the power delivery cable that frequency conversion tank (1) is connected with power supply has screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103002.4A CN102638219B (en) | 2012-04-10 | 2012-04-10 | Permanent magnet drive system of flotation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103002.4A CN102638219B (en) | 2012-04-10 | 2012-04-10 | Permanent magnet drive system of flotation machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102638219A CN102638219A (en) | 2012-08-15 |
| CN102638219B true CN102638219B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210103002.4A Expired - Fee Related CN102638219B (en) | 2012-04-10 | 2012-04-10 | Permanent magnet drive system of flotation machine |
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| Country | Link |
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| CN (1) | CN102638219B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689160B (en) * | 2016-01-20 | 2019-01-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of closing method and device for magnetic suspension centrifuge |
| CN109274213A (en) * | 2018-11-27 | 2019-01-25 | 承德盛乾特种电机制造有限公司 | A kind of direct-drive type flotation device low-speed permanent-magnet motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013573Y (en) * | 2007-01-22 | 2008-01-30 | 崔钢都 | Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine |
| CN201260983Y (en) * | 2008-09-17 | 2009-06-24 | 北京德通化纤工业有限公司 | Flotation machine for waste plastic sheet material |
| CN101804388A (en) * | 2010-03-05 | 2010-08-18 | 北京矿冶研究总院 | Flotation machine driving device and flotation machine with same |
| CN201682738U (en) * | 2010-05-28 | 2010-12-22 | 上海交技发展股份有限公司 | Electromagnetic compatibility platform body structure |
| CN102130532A (en) * | 2011-03-27 | 2011-07-20 | 武汉长海电气科技开发有限公司 | Driving motor of flotation machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1118409A (en) * | 1997-06-17 | 1999-01-22 | Yoshio Nakazawa | Rotator applying permanent magnet |
-
2012
- 2012-04-10 CN CN201210103002.4A patent/CN102638219B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013573Y (en) * | 2007-01-22 | 2008-01-30 | 崔钢都 | Permanent magnetism synchronous non-gear-wheel driving screw pump type oil production machine |
| CN201260983Y (en) * | 2008-09-17 | 2009-06-24 | 北京德通化纤工业有限公司 | Flotation machine for waste plastic sheet material |
| CN101804388A (en) * | 2010-03-05 | 2010-08-18 | 北京矿冶研究总院 | Flotation machine driving device and flotation machine with same |
| CN201682738U (en) * | 2010-05-28 | 2010-12-22 | 上海交技发展股份有限公司 | Electromagnetic compatibility platform body structure |
| CN102130532A (en) * | 2011-03-27 | 2011-07-20 | 武汉长海电气科技开发有限公司 | Driving motor of flotation machine |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-18409A 1999.01.22 * |
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| CN102638219A (en) | 2012-08-15 |
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