CN208723817U - The starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system - Google Patents
The starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system Download PDFInfo
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- CN208723817U CN208723817U CN201821507556.XU CN201821507556U CN208723817U CN 208723817 U CN208723817 U CN 208723817U CN 201821507556 U CN201821507556 U CN 201821507556U CN 208723817 U CN208723817 U CN 208723817U
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Abstract
The utility model discloses a kind of startings of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system, high voltage synchronous machine MS1 and MS2 and 1 high-voltage frequency converter including two different capacities, high voltage synchronous machine MS1 and MS2 are used for two ore mills of successive variable frequency starting, wherein an ore mill assembles rubber lining, high voltage synchronous machine MS1 and MS2 pass through converting operation circuit respectively and connect with high-voltage frequency converter, high-voltage circuitbreaker 4QF and 3QF are respectively equipped on two-way converting operation circuit, power frequency operation circuit is connected to by high voltage synchronous machine MS1, it which is provided with high-voltage circuitbreaker 2QF, turn power frequency operation after realizing high voltage synchronous machine MS1 variable frequency starting, high voltage synchronous machine MS2 delays the ore mill that variable frequency starting is equipped with rubber lining；High-voltage frequency converter is equipped with PLC control loop, realizes the electrical interlocks of VF to WF, and control the starting time interval of high voltage synchronous machine MS1 and MS2.
Description
Technical field
The utility model belongs to mineral resources flotation technology field, is related to the dynamic Control technology of grinding system, refers specifically to
A kind of starting of the grinding system configured with two different capacity high voltage synchronous machines, speed-adjusting and control system.
Background technique
Large mill in ore grinding of ore system needs adapted high-power high voltage synchronous motor, to realize big torque heavy duty
Starting operation.And in the grinding system configured with 2 ore mills, the stationarity of different capacity high-voltage motor starting will be very heavy
It wants；The additionally mounted ore mill for having rubber lining, the revolving speed of milling medium parabolic motion track requirements ore mill need real-time
It adjusts, to maximize the service life of protection rubber lining, realizes optimal grinding efficiency.Therefore, the Synchronous High voltage of different capacity
The starting of motor and speed governing operation are required to realize.
Firstly, high-power high voltage synchronous motor stablizes starting, conventional Starting mode is to use to directly initiate, soft start
Equal reduced-voltage startings mode, impact of the different Starting mode to power grid and the damage to the electric loops sort time overcurrent such as machine winding
Wound is different；And the high voltage synchronous machine of different capacity is configured on startup, as reduced-voltage starting method needs more of corresponding configuration not
With the auxiliary starting device of capacity, to cause an electrical equipment cost of investment high, equipment installs the big disadvantage of construction area.
In addition, the ore mill of rubber lining is equipped with, to realize preferably grinding efficiency and extending the use of rubber lining
In the service life, milling medium parabolic motion track requirements system can real-time speed regulating.Currently, configuration frequency converter timing is mainly to select
It selects, the starting that can complete ore grinding synchronous motor is able to achieve grinding mill liner speed regulation needs again.But frequency converter needs and motor
Realize one-to-one configuration, i.e. two motors need to be correspondingly arranged two frequency converters, cause cost high.In addition, 2 mills
After frequency converter start completion, frequency converter is still maintained under 50Hz work frequency the ore mill for not having liner plate speed regulation to need in mine machine
Operation, both consumes electric energy, the service life of native internal electronic component can also be lost.
Utility model content
In view of the above technical problems, it is same configured with two different capacity high pressures that the purpose of this utility model is to provide one kind
Starting, the speed-adjusting and control system for walking motor, the Synchronous High voltage of two different capacities of grinding system can be realized using separate unit frequency converter
Electric motor starting, frequency conversion power frequency switch and the Energy Saving Control of speed governing operation, solves the different function of the grinding system of 2 ore mills of configuration
The starting and speed regulation problem of rate high voltage synchronous machine, control primary electrical cost of investment, realize rubber lining board of ore-grinder to ore grinding
The speed governing operation requirement of medium parabolic motion track.
The utility model is achieved through the following technical solutions:
A kind of starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system, including two differences
The high voltage synchronous machine MS1 of power and MS2 and 1 high-voltage frequency converter, the high voltage synchronous machine MS1 and high voltage synchronous machine
For successively starting two ore mills, and wherein, an ore mill is equipped with rubber lining to MS2, and the high voltage synchronous machine MS1 is logical
It crosses converting operation circuit to connect with the high-voltage frequency converter, converting operation circuit is equipped with high-voltage circuitbreaker 4QF, and high pressure is same
Step motor MS1 is connect by the other power frequency operation circuit connect with power source bus, and power frequency operation circuit is equipped with high-voltage circuitbreaker
2QF turns power frequency operation after realizing high voltage synchronous machine MS1 variable frequency starting；The high voltage synchronous machine MS2 is returned by converting operation
Road is connect with high-voltage frequency converter, and converting operation circuit is equipped with high-voltage circuitbreaker 3QF, is equipped with rubber lining for variable frequency starting
Ore mill, and realize frequency control run；The high-voltage frequency converter is configured with PLC control loop, for high-voltage circuitbreaker
1QF, 2QF, 3QF and 4QF realize electrical interlocks function, and successively start to high voltage synchronous machine MS1 and high voltage synchronous machine MS2
Time interval controlled, the high-voltage frequency converter is connect by high-voltage circuitbreaker 1QF with power source bus.
Preferably, it is 50Hz, the high pressure that the high voltage synchronous machine MS1 variable frequency starting, which turns the frequency node of power frequency operation,
Phase locking unit is configured inside frequency converter, can export locking phase pass signal, using the chain function of PLC control loop, realizes frequency conversion
It is switched to power frequency operation.
Preferably, the power of two high voltage synchronous machine MS1 and high voltage synchronous machine MS2 is respectively P1 and P2, height
The capacity of voltage frequency changer is S, and the capability value of the high-voltage frequency converter is greater than the relatively high power in two high voltage synchronous machine power
Value, i.e. S > MAX(P1, P2).
Preferably, the time interval that the high voltage synchronous machine MS1 and high voltage synchronous machine MS2 successively start be 10~
15min。
Preferably, the rated current of the high-voltage circuitbreaker 4QF and high-voltage circuitbreaker 2QF is greater than high voltage synchronous machine MS1
Rated current.
Preferably, the load current value of the high-voltage circuitbreaker 1QF is greater than high voltage synchronous machine MS1 and high voltage synchronous machine
The greater of rated current in MS2 the two.
The beneficial effects of the utility model are:
1. 2 high voltage synchronous machines of different capacity realize electrically opening for one drag two using 1 high-voltage frequency converter starting
Dynamic control model, on the one hand utilizes least controller switching equipment, occupies least equipment construction and installation space, greatly reduces primary
Cost of investment；On the other hand, the high voltage synchronous machine of 2 different capacities is successively utilized respectively high-voltage frequency converter starting, protects
Impact of the high voltage synchronous machine from starting high current, extends the service life of equipment；
2. realizing the phase-locked function by phase locking unit built in high-voltage frequency converter, and PLC control loop is configured, works as high pressure
Frequency converter no-harass switch after variable frequency starting reaches 50Hz is power frequency operation, reduces the loss of power consumption and electronic component；
3. the frequency conversion real-time speed regulating of the ore mill of assembly rubber lining can be realized, its medium parabolic motion track is met
The requirement of technique speed regulation, optimizes grinding efficiency；
4. the applicability of grinding system of the utility model for being made of two ore mills is extremely strong, process of distributing electricity simply may be used
It leans on, greatly reduces equipment input cost and operating cost, there are preferable economic benefit and market prospects, answered suitable for promoting
With.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is the partial wiring diagram of PLC in Fig. 1；
In figure, 1- power source bus, 2- high-voltage frequency converter, 3-PLC control loop, 4- high voltage synchronous machine MS1,5- high pressure is same
Walk motor MS2.
Specific embodiment
The utility model and its effect are further elaborated below in conjunction with accompanying drawings and embodiments.
As shown in Figure 1, a kind of starting configured with two different capacity high voltage synchronous machines, speed-adjusting and control system, including
The high voltage synchronous machine MS1 and MS2 and 1 high-voltage frequency converter of two different capacities, the high voltage synchronous machine MS1 4 and height
Press synchronous motor MS2 5 for successively starting two ore mills, and wherein an ore mill is equipped with rubber lining, the high pressure
Synchronous motor MS1 4 is connect by converting operation circuit with the high-voltage frequency converter 2, and converting operation circuit is broken equipped with height
Road device 4QF, and power frequency operation circuit is connected to by high voltage synchronous machine MS1 4, pass through power frequency operation circuit and power source bus 1
10kV connection, power frequency operation circuit are equipped with high-voltage circuitbreaker 2QF, change a job after realizing 4 variable frequency starting of high voltage synchronous machine MS1
Frequency is run；The high voltage synchronous machine MS2 5 is connect by converting operation circuit with the high-voltage frequency converter 2, converting operation
Circuit is equipped with high-voltage circuitbreaker 3QF, and the ore mill of rubber lining is equipped with for variable frequency starting, and realizes that frequency control is run；
The high-voltage frequency converter is configured with PLC control loop 3, for realizing electrical interlocks to high-voltage circuitbreaker 1QF, 2QF, 3QF and 4QF
Function, and high voltage synchronous machine MS1 4 and high voltage synchronous machine MS2 5 time interval successively started are controlled, preferably
Ground, the time interval controls are between 10~15min；Wherein, the variable frequency starting running frequency of high voltage synchronous machine MS1 4 reaches
After 50Hz, by phase locking unit inside frequency converter, locking phase pass signal is exported, using the chain function of PLC control loop 3, by becoming
Frequency is converted to power frequency operation.
Further, the power of two high voltage synchronous machine MS1 4 and high voltage synchronous machine MS2 5 be respectively P1 and
The capacity of P2, high-voltage frequency converter 2 are S, and the capacitance values of the high-voltage frequency converter should select to be greater than two high voltage synchronous machine function
Relatively high power numerical value in rate, i.e. S >=MAX(P1, P2).High-voltage circuitbreaker on high voltage synchronous machine MS1 converting operation circuit
High-voltage circuitbreaker 2QF on 4QF and power frequency operation circuit selects the high-voltage circuitbreaker with high voltage synchronous machine MS1 power match,
That is rated current numerical value of its rated current numerical value greater than high voltage synchronous machine MS1.The high-voltage frequency converter and power source bus it
Between line be equipped with high-voltage circuitbreaker 1QF, select and power in high voltage synchronous machine MS1 and high voltage synchronous machine MS2 the two
The high-voltage circuitbreaker that the greater matches, i.e. the rated current numerical value of high-voltage circuitbreaker 1QF are greater than high voltage synchronous machine MS1 and height
Press the greater of rated current numerical value in synchronous motor MS2.
As shown in Fig. 2, the wiring diagram of the control section PLC, concentrates the operation for completing two high voltage synchronous machines MS1 and MS2
The work such as selection, start-up and shut-down control, electrical interlocks logic judgment, timing control and status display.Its course of work is, right first
The operation of MS1 and MS2 selects, i.e., after the permission service condition of motor and ore mill meets, PLC receives DI9 and DI10 connects
Messenger, determination can star motor.By remotely start or scene on the spot starting SB give PLC mono- starting input signal,
The starting for realizing high voltage synchronous machine MS1 and MS2, when high voltage synchronous machine MS1 starting, chain confirmation 3QF is disconnected, and closure is high
Voltage frequency changer 1QF and 4QF, after high-voltage frequency converter accelerates to 50Hz running frequency, phase locking unit detects frequency conversion inside frequency converter
It is defeated after device front end bus input voltage (U1V1W1) is consistent with frequency, the phase and amplitude of frequency converter output voltage (U2V2W2)
Locking phase pass signal out, PLC receive the output VF to WF order of locking phase pass signal relay KA, are closed 2QF, high pressure
Synchronous motor MS1 is dragged in power frequency operation, and be delayed 200~400 milliseconds of disconnection 1QF and 4QF, and high-voltage frequency converter shutdown is exited.In height
It presses synchronous motor MS1 switching power frequency operation to be delayed after 10~15min, can star high voltage synchronous machine MS2 motor order,
4QF is closed 1QF and 3QF when it is disconnected, and starting high-voltage frequency converter drags high voltage synchronous machine MS2 variable frequency starting, frequency control
Operation.High voltage synchronous machine MS1 stop when, PLC receive SB stop input signal, during variable frequency starting, disconnect 1QF and
3QF breaker disconnects 2QF breaker during power frequency operation；When high voltage synchronous machine MS2 stops, PLC receives stopping input
Signal disconnects 1QF and 4QF breaker.During high voltage synchronous machine starts stopped process, breaker 1QF, 2QF, 3QF and 4QF
Status signal DI1~DI4 digital input terminal of PLC is inputted by its normally opened auxiliary contact, by completing chain patrol inside PLC
Volume judgement and delays time to control, by 8 terminals such as digital output terminal D01~DO8, export to the closing coil HQ of breaker and
The control of opening coil TQ.Signal lamp HL is accessed in output terminal D09~DO16 simultaneously, is broken to frequency converter, MS1 and MS2,4
The state instruction of road device.
Above embodiments are merely exemplary, and can't limit to the utility model, it should be pointed out that for the technology of this field
For personnel, the other equivalent modifications and improvement made under technical inspiration provided by the utility model are regarded as this
The protection scope of utility model.
Claims (6)
1. a kind of starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system, including two different function
The high voltage synchronous machine MS1 of rate and MS2 and 1 high-voltage frequency converter, the high voltage synchronous machine MS1 and high voltage synchronous machine MS2
For successively starting two ore mills, and wherein, an ore mill is equipped with rubber lining, it is characterised in that: the Synchronous High voltage electricity
Machine MS1(4) it is connect by converting operation circuit with the high-voltage frequency converter (2), converting operation circuit is equipped with high pressure open circuit
Device 4QF, and high voltage synchronous machine MS1(4) it is connect by the other power frequency operation circuit connect with power source bus (1), power frequency operation returns
Road is equipped with high-voltage circuitbreaker 2QF, turns power frequency operation after realizing high voltage synchronous machine MS1 variable frequency starting；The Synchronous High voltage electricity
Machine MS2(5) it is connect by converting operation circuit with high-voltage frequency converter (2), converting operation circuit is equipped with high-voltage circuitbreaker
3QF, the ore mill of rubber lining is equipped with for variable frequency starting, and realizes that frequency control is run；High-voltage frequency converter (2) configuration
There are PLC control loop (3), for realizing electrical interlocks function to high-voltage circuitbreaker 1QF, 2QF, 3QF and 4QF, and it is same to high pressure
Step motor MS1(4) and high voltage synchronous machine MS2(5) time interval that successively starts controlled, the high-voltage frequency converter (2)
It is connect by high-voltage circuitbreaker 1QF with power source bus.
2. the starting of two different capacity high voltage synchronous machines of grinding system according to claim 1, speed-adjusting and control system,
It is characterized by: the high voltage synchronous machine MS1(4) variable frequency starting turn power frequency operation frequency node be 50Hz, the high pressure
Phase locking unit is configured inside frequency converter (2), can export locking phase pass signal, it is real using the chain function of PLC control loop (3)
Existing frequency conversion is switched to power frequency operation.
3. the starting of two different capacity high voltage synchronous machines of grinding system according to claim 1 or 2, speed regulating control system
System, it is characterised in that: two high voltage synchronous machine MS1(4) and high voltage synchronous machine MS2(5) power be respectively P1 with
P2, the capacity of high-voltage frequency converter (2) are S, and the capability value of the high-voltage frequency converter is greater than in two high voltage synchronous machine power
Relatively high power value, i.e. S > MAX(P1, P2).
4. the starting of two different capacity high voltage synchronous machines of grinding system according to claim 1, speed-adjusting and control system,
It is characterized by: the high voltage synchronous machine MS1(4) and high voltage synchronous machine MS2(5) time interval that successively starts is 10~
15min。
5. the starting of two different capacity high voltage synchronous machines of grinding system according to claim 1, speed-adjusting and control system,
It is characterized by: the rated current of the high-voltage circuitbreaker 4QF and high-voltage circuitbreaker 2QF is greater than the volume of high voltage synchronous machine MS1
Constant current.
6. the starting of two different capacity high voltage synchronous machines of grinding system according to claim 1, speed-adjusting and control system,
It is characterized by: the load current value of the high-voltage circuitbreaker 1QF is greater than high voltage synchronous machine MS1 and high voltage synchronous machine MS2
The greater of rated current in the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821507556.XU CN208723817U (en) | 2018-09-14 | 2018-09-14 | The starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821507556.XU CN208723817U (en) | 2018-09-14 | 2018-09-14 | The starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208723817U true CN208723817U (en) | 2019-04-09 |
Family
ID=65982131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821507556.XU Active CN208723817U (en) | 2018-09-14 | 2018-09-14 | The starting of two different capacity high voltage synchronous machines of grinding system, speed-adjusting and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208723817U (en) |
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2018
- 2018-09-14 CN CN201821507556.XU patent/CN208723817U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 742312 Liulin Town, Hui County, Longnan City, Gansu Province Patentee after: Jinhui Mining Co.,Ltd. Address before: 742300 Liulin Town, Hui County, Longnan City, Gansu Province Patentee before: GANSU JINHUI MINING INDUSTRY Co.,Ltd. |
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| CP03 | Change of name, title or address |