CN207559886U - A kind of new ball mill start-up circuit - Google Patents
A kind of new ball mill start-up circuit Download PDFInfo
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- CN207559886U CN207559886U CN201721482782.2U CN201721482782U CN207559886U CN 207559886 U CN207559886 U CN 207559886U CN 201721482782 U CN201721482782 U CN 201721482782U CN 207559886 U CN207559886 U CN 207559886U
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- ball mill
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- circuit
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Abstract
The utility model belongs to the Starting mode technical field of ball mill, discloses a kind of new ball mill start-up circuit, is provided with inlet wire three phase mains, and the outlet of three phase mains is in series with disconnecting switch；The three-phase leading-out terminal of disconnecting switch is connected to main noddle on contactor end of incoming cables；Control loop is connected in parallel in arbitrary two phase line of disconnecting switch leading-out terminal, is in series with control loop fuse；Two outlets of fuse form closed circuit by electrothermal relay of connecting, the second button switch, the first button switch, contactor coil；First button switch is parallel with contactor normally opened contact；Contactor open type main contact, electrothermal relay are in series between the disconnecting switch other end and three phase electric machine；The stator coil of three phase electric machine.Using brushless liquid resistance vacuum motor starter, the double startup guarantee of reduced-voltage starting and dynamical system is realized, have the advantages that reduce the failure rate of ball mill, save service material cost, improve production run efficiency, mitigate maintenance personal's labor intensity and time.
Description
Technical field
The utility model belongs to the Starting mode technical field of ball mill more particularly to a kind of new ball mill starts electricity
Road.
Background technology
At present, smeltery's nickel system overflow ball mill is driven using wire-wound asynchronous motor gear reduction unit：The gear deceleration
Device drive pinion gear, bull gear and drive ball mill.This transmission advantage is that wire wound asynchronous motor is cheap, actually should
In, dynamical system includes：Motor (stator coil, rotor coil, slip ring, carbon brush), water resistance, (plastic shell breaks power cabinet
Road device, contactor), water resistance switch board (time relay, intermediate relay, travel switch, small-sized lifting motor, temperature control
Device).
In the process of running, which has the following problems：1st, carbon brush is easy to wear, and exorbitant expenditure, maintenance capacity is big, and shadow
Ring normal production；2nd, spark is easily generated between carbon brush and slip ring, some places cannot use；3rd, the friction of carbon brush and slip ring,
Increase contact resistance, motor temperature raising；4th, carbon brush conductive powder is easily inhaled into inside motor, is burn motor one big hidden
Suffer from；5th, water resistance secondary complex circuit, cumbersome, failure is more, maintenance rate is high.
In conclusion problem of the existing technology is：The Starting mode of traditional ball mill has the following problems：1st, carbon
Brush easy to wear, exorbitant expenditure, maintenance capacity is big, and influences normal production；2nd, spark is easily generated between carbon brush and slip ring, some
Place cannot use；3rd, the friction of carbon brush and slip ring increases contact resistance, motor temperature raising；4th, carbon brush conductive powder is easy
It is inhaled into inside motor, is the big hidden danger for burning motor；5th, water resistance secondary complex circuit, cumbersome, failure is more, repair
Rate is high.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of new ball mill start-up circuit.
The utility model is realized in this way the new ball mill start-up circuit is provided with the inlet wire of three phase mains, three-phase
The outlet of power supply is in series with disconnecting switch；The three-phase leading-out terminal of disconnecting switch is connected to main noddle on contactor end of incoming cables；It controls back
Road is connected in parallel in arbitrary two phase line of disconnecting switch leading-out terminal, is in series with control loop fuse；Two outlets of fuse pass through
Series connection electrothermal relay, the second button switch, the first button switch, contactor coil form closed circuit；
First button switch is parallel with open type contactor auxiliary contact；It is gone here and there between disconnecting switch leading-out terminal and three phase electric machine
It is associated with contactor of the open type with contact, electrothermal relay；The stator coil of three phase electric machine connects the three-phase electricity of electrothermal relay output.
Further, second button switch is normally closed switch.
Further, first button switch is switched for open type.
Further, second button switch is normally closed switch.
Further, first button switch is switched for open type.
The advantages of the utility model and good effect are：The utility model is replaced using brushless liquid resistance vacuum motor starter
Traditional water resistance realizes the double startup guarantee of reduced-voltage starting and dynamical system；It is complicated system structure is got rid of, more than electrical equipment
Water resistance switch board makes ball mill enter the one-key start epoch；With reduce ball mill failure rate, save service material into
Originally it, improves production run efficiency, mitigate the advantages of maintenance personal's labor intensity and time.
Description of the drawings
Fig. 1 is the dynamical system electric drawings for the new ball mill start-up circuit that the utility model embodiment provides.
Specific embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing.
The structure of the utility model is explained in detail below in conjunction with the accompanying drawings.
New ball mill start-up circuit is provided with the inlet wire U/V/W of three phase mains, three phase mains U/V/W outlets be in series with every
It leaves and closes QS；The QS three-phase leading-out terminals of disconnecting switch are connected to main noddle on contactor end of incoming cables；The two-phase outlet of disconnecting switch QS
End is parallel with fuse FU；Normally-closed contact, second button switch of two outlets of fuse FU by the electrothermal relay FR that connects
SB2, the first button switch SB1, contactor coil KM form closed circuit；First button switch SB1 is parallel with open type contact
Device KM auxiliary contacts；The other end and three phase electric machine M3 of fuse FU~between be in series with the contactor KM master of open type contact-carrying
Contact, electrothermal relay FR；Three phase electric machine M3~stator coil.
Further, the second button switch SB2 is normally closed switch.
Further, the first button switch SB1 is switched for open type.
The operation principle of the utility model：New ball mill start-up circuit removes rotor carbon brush holder, slip ring and carbon brush；
Dynamical system linear quadratic control part is thrown away；Brushless automatic control vacuum motor starter is installed.
The above is only the preferred embodiment to the utility model, and not the utility model is made in any form
Limitation, it is every according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, belongs in the range of technical solutions of the utility model.
Claims (3)
1. a kind of new ball mill start-up circuit, which is characterized in that the new ball mill start-up circuit is provided with three phase mains
Inlet wire, the outlet of three phase mains is in series with disconnecting switch；The three-phase leading-out terminal of disconnecting switch be connected to main noddle on contactor into
Line end；Control loop is connected in parallel in arbitrary two phase line of disconnecting switch leading-out terminal, is in series with control loop fuse；The two of fuse
Outlet passes through electrothermal relay of connecting, the second button switch, the first button switch, contactor coil and forms closed circuit；
First button switch is parallel with open type contactor auxiliary contact；It is in series between disconnecting switch leading-out terminal and three phase electric machine
Contactor of the open type with contact, electrothermal relay；The stator coil of three phase electric machine connects the three-phase electricity of electrothermal relay output.
2. new ball mill start-up circuit as described in claim 1, which is characterized in that second button switch is opened for closed type
It closes.
3. new ball mill start-up circuit as described in claim 1, which is characterized in that first button switch is opened for open type
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482782.2U CN207559886U (en) | 2017-11-07 | 2017-11-07 | A kind of new ball mill start-up circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482782.2U CN207559886U (en) | 2017-11-07 | 2017-11-07 | A kind of new ball mill start-up circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207559886U true CN207559886U (en) | 2018-06-29 |
Family
ID=62682478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721482782.2U Active CN207559886U (en) | 2017-11-07 | 2017-11-07 | A kind of new ball mill start-up circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207559886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844653A (en) * | 2020-12-31 | 2021-05-28 | 济南重工股份有限公司 | Transmission control device of ball mill |
-
2017
- 2017-11-07 CN CN201721482782.2U patent/CN207559886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844653A (en) * | 2020-12-31 | 2021-05-28 | 济南重工股份有限公司 | Transmission control device of ball mill |
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