CN207283151U - A kind of cement milling main motor interlocking protective system - Google Patents
A kind of cement milling main motor interlocking protective system Download PDFInfo
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- CN207283151U CN207283151U CN201721280345.2U CN201721280345U CN207283151U CN 207283151 U CN207283151 U CN 207283151U CN 201721280345 U CN201721280345 U CN 201721280345U CN 207283151 U CN207283151 U CN 207283151U
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- Prior art keywords
- main motor
- grinding mill
- cabinet
- cement grinding
- petrol station
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a kind of cement milling main motor interlocking protective system, including Medium-voltage motor cabinet, grind main motor water resistance, the auxiliary machine that conducts electricity of cement grinding mill, middle pressure local compensation cabinet, the Medium-voltage motor cabinet is used for the operation for controlling mill main motor, the startup of the mill main motor water resistance is controlled by the switch contact of contactor, the auxiliary spacing contact passed in electric motor clutch of the cement grinding mill is used for the work for controlling the auxiliary machine that conducts electricity, middle pressure local compensation cabinet inner breaker is used in controlling the work for pressing local compensation cabinet, the closing circuit of the Medium-voltage motor cabinet inner breaker is sequentially connected in series the switch contact for setting contactor in mill main motor water resistance, cement grinding mill is auxiliary to pass spacing contact in electric motor clutch, the spacing contact of middle pressure local compensation cabinet cabinet door.The utility model has the advantage of：By the way that the primary association equipment of cement milling production line is set by interlocking, it can reliably ensure to grind the operation of main motor, avoid the extension of accident, the purpose of final realization protection equipment.
Description
Technical field
This application involves main motor protection system is ground in cement milling link in cement industry, more particularly to one kind passes through connection
Lock the protection system to grinding main motor.
Background technology
Cement producing line technological process is complicated, and equipment is more, and there are internal connection between each other.With the water of cement producing line
Mud grinding system is row：Cement grinding is last link of manufacture of cement, and master is needed to configure in the configuration of grinding cement
Motor drives mill tube and internal steel ball to be ground clinker, and the main motor of configuration is generally 3550kW.Cement grinding mill main motor
Capacity is larger, and local compensation cabinet is pressed in general configuration, and to avoid the startup high current of big motor, usual main motor configures water resistance
Start.Main motor is considered there are need to be to overhauls of the equipments such as mill tubes during problem, and main motor need to configure the auxiliary machine that conducts electricity.Main motor, deceleration
Machine and mill tube need to lubricate in the process of running, configure Lubricating-oil Station accordingly.In order to ensure to grind the safe operation of main motor, need
Some safeguard measures are designed to protect the safe operation of mill main motor.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of cement milling main motor interlock protection
System, ensures that mill main motor can work under normal circumstances in other protection equipment, the fortune of protection mill main motor by interlocking
OK.
To achieve these goals, the technical solution adopted in the utility model is：A kind of cement milling main motor interlocking is protected
Protecting system, including Medium-voltage motor cabinet, mill main motor water resistance, the auxiliary machine that conducts electricity of cement grinding mill, middle pressure local compensation cabinet, the middle pressure
Motor cabinet be used to controlling mill the running of main motor, the mill main motor water resistance startup by contactor switch contact control
The auxiliary spacing contact passed in electric motor clutch of system, the cement grinding mill is used to control the working of the auxiliary machine that conducts electricity, middle pressure local compensation
Cabinet inner breaker is used in controlling the work for pressing local compensation cabinet, and the closing circuit of the Medium-voltage motor cabinet inner breaker is successively
It is arranged in series spacing contact, middle pressure in the auxiliary biography electric motor clutch of switch contact, cement grinding mill of contactor in mill main motor water resistance
The spacing contact of local compensation cabinet cabinet door.
The system further includes Lubricating-oil Station, and relay is used for the energization work for controlling Lubricating-oil Station in the Lubricating-oil Station, described
Petrol station in the normally opened contact of relay be arranged in series in the closing circuit of Medium-voltage motor cabinet inner breaker.
The petrol station includes cement grinding mill feeding end crawler shoe petrol station, cement grinding mill discharge end crawler shoe petrol station, the main deceleration of cement grinding mill
Machine oil station, cement grinding mill main motor Lubricating-oil Station, are correspondingly arranged on cement grinding mill feeding end crawler shoe petrol station relay, cement grinding mill discharging respectively
Hold crawler shoe petrol station relay, cement grinding mill main gear reducer petrol station relay, cement grinding mill main motor Lubricating-oil Station relay.
The interlocking protective system further includes middle pressure compensating cabinet cabinet door limit switch, water resistance tripping auxiliary switch, petrol station and jumps
Lock auxiliary switch, middle pressure compensating cabinet cabinet door open then middle pressure compensating cabinet cabinet door limit switch closure, water resistance tripping then water resistance
Trip auxiliary switch closure, petrol station tripping then petrol station tripping auxiliary switch closure, middle pressure compensating cabinet cabinet door limit switch, water resistance
It is serially connected in after tripping auxiliary switch, petrol station tripping auxiliary switch three's parallel connection in the trip(ping) circuit of Medium-voltage motor cabinet.
Petrol station tripping auxiliary switch is the normally-closed contact of the breaker in petrol station, respectively including cement grinding mill feeding end crawler shoe oil
Stand the normally-closed contact of relay, the normally-closed contact of cement grinding mill discharge end crawler shoe petrol station relay, cement grinding mill main gear reducer petrol station after
Normally-closed contact, the normally-closed contact of cement grinding mill main motor Lubricating-oil Station relay of electric appliance.
The switching signal of the Medium-voltage motor cabinet is respectively fed in the control system of cement grinding mill feeding end crawler shoe petrol station, water
Mud mill discharge end crawler shoe petrol station control system in, in cement grinding mill main gear reducer petrol station control system, cement grinding mill main motor Lubricating-oil Station
In control system, in the control system of middle pressure local compensation cabinet, in the control system of water resistance, in auxiliary biography electric machine control system.
The utility model has the advantage of：By the way that the primary association equipment of cement milling production line is set by interlocking,
It can reliably ensure the operation of mill main motor, avoid the extension of accident, the final purpose for realizing protection equipment.
Brief description of the drawings
Mark in the content and figure expressed below each width attached drawing of the utility model specification is briefly described：
Fig. 1 is the utility model Medium-voltage motor cabinet combined floodgate schematic diagram；
Fig. 2 is the utility model Medium-voltage motor cabinet tripping schematic diagram
Fig. 3 is the utility model Medium-voltage motor cabinet switching signal transmission figure.
Embodiment
Below against attached drawing, by the description to optimum embodiment, specific embodiment of the present utility model is made into one
Step detailed description.
To ensure safe operation between each equipment, main motor and middle pressure local compensation cabinet, water resistance, Lubricating-oil Station and mill are auxiliary
It there is the incidence relation of inherence between biography：It must assure that the safe operation of petrol station and water resistance before main motor startup, it is auxiliary
Conducting electricity must separate between machine and main motor, and local compensation cabinet door is spacing to be not switched on；Petrol station, water resistance operation break down with
And auxiliary pass must jump immediately with main motor the clutch limiting not fault condition such as spacing opening of separated and local compensation cabinet door
Stop main motor switch, need mutually to send operation to believe between Lubricating-oil Station, water resistance and middle pressure local compensation cabinet and motor normal operation
Number, it can preferably monitor other side's operating status.In these cases, motor safety interlocks the design being necessary to firmly, passes through
Interlocking associates operating status complicated each other, achievees the purpose that to protect equipment.
Cement grinding mill main motor starts interlock condition：Cement grinding mill feeding end crawler shoe petrol station is working properly, cement grinding mill discharge end is slided
Shoe petrol station is working properly, cement grinding mill main gear reducer petrol station is working properly, cement grinding mill main motor Lubricating-oil Station is working properly, mill main motor
Water resistance allows the auxiliary biography clutch limiting of startup, cement grinding mill to open, middle pressure local compensation cabinet allows to start.Each equipment interlocking exists
The relation of "AND", it is necessary to while meet the requirements and could start main motor.
Cement grinding mill main motor tripping interlock condition：Cement grinding mill feeding end crawler shoe petrol station emergency stop valve trip, cement grinding mill discharge end are slided
Carry out petrol station emergency stop valve trip, cement grinding mill main gear reducer petrol station emergency stop valve trip, cement grinding mill main motor Lubricating-oil Station emergency stop valve trip, mill main motor
Water resistance emergency stop valve trip, the middle pressure spacing opening of local compensation cabinet cabinet door.There are the relation of "or", any equipment goes out each equipment interlocking
Existing problem must stop jumping main motor.
Cement grinding mill main motor run signal：Main motor switching signal to mill feeding end crawler shoe petrol station, mill main motor is ground to close a floodgate
Signal to mill discharge end crawler shoe petrol station, mill main motor switching signal to mill main gear reducer petrol station, mill main motor switching signal is extremely ground
Main motor Lubricating-oil Station, mill main motor switching signal are to grinding auxiliary clutch circuit, the mill main motor switching signal of being conducted away to grinding main motor water
Resistance, mill main motor switching signal to middle pressure local compensation cabinet.The signal of cement grinding mill main motor normal operation send to each interlocking and sets
It is standby, ensure the security monitoring of each interlock device.
The petrol station of cement milling production line includes cement grinding mill feeding end crawler shoe petrol station, cement grinding mill discharge end crawler shoe petrol station, water
Mud mill main gear reducer petrol station, cement grinding mill main motor Lubricating-oil Station, petrol station control system are opened by switch board, oil pump and some controls
Close composition.The work of oil pump by the switch board of control system by the work of relay control oil pump, so as to control whole petrol station
Normal work.Medium-voltage motor cabinet is used for the operation for controlling mill main motor, whether its combined floodgate separating brake corresponds to the work of mill main motor；
Water resistance make it that grinding main motor low current starts, by electrode system, electrode drive system, electric-control system and upper and lower case inside it
Body four partly forms, when water resistance works normally, contactless contactor contact closure, such as BW2 type water resistances.Cement grinding mill main motor
It must separate and run between the auxiliary machine that conducts electricity, interlocked relationship be realized by clutch limiting switch, clutch limiting contact is
Limit switch contact；It is related to the breaker closing separating brake in it whether the work of middle pressure local compensation cabinet, work as breaker closing
When, middle pressure local compensation cabinet starts work.
Medium-voltage motor cabinet is used for the operation for controlling mill main motor, after its inner breaker closing circuit closes a floodgate, by closing coil
Inhale and breaker is inhaled and mechanism, the startup for completing Medium-voltage motor cabinet is closed a floodgate.In order to grind main motor safe operation, in cement grinding mill feeding
Hold crawler shoe petrol station, cement grinding mill discharge end crawler shoe petrol station, cement grinding mill main gear reducer petrol station, cement grinding mill main motor Lubricating-oil Station, the main electricity of mill
When the auxiliary biography clutch limiting of machine water resistance, cement grinding mill is opened, middle pressure local compensation cabinet works, the closing circuit of Medium-voltage motor cabinet is
It can connect to form electrical circuit.That is the closing circuit of Medium-voltage motor cabinet on the basis of original closing switch, closing coil, according to
It is secondary be arranged in series cement grinding mill feeding end crawler shoe petrol station relay normally open contact, cement grinding mill discharge end crawler shoe petrol station relay normally open touches
Point, cement grinding mill main gear reducer petrol station relay normally open contact, cement grinding mill main motor Lubricating-oil Station relay normally open contact, mill main motor
The switch contact of contactor, cement grinding mill are auxiliary in water resistance passes spacing contact in electric motor clutch, cabinet door in middle pressure local compensation cabinet
Spacing contact.When the petrol station work, water resistance work, the auxiliary biography electric motor clutch of cement grinding mill that are arranged in Medium-voltage motor cabinet closing circuit
Device is spacing to be opened, middle pressure local compensation cabinet work when, corresponding cement grinding mill feeding end crawler shoe petrol station relay normally open contact, cement
Grind discharge end crawler shoe petrol station relay normally open contact, cement grinding mill main gear reducer petrol station relay normally open contact, cement grinding mill main motor
It is spacing in the auxiliary machine that conducts electricity of switch contact, cement grinding mill of contactor in Lubricating-oil Station relay normally open contact, mill main motor water resistance to touch
The spacing contact of cabinet door closes in point, middle pressure local compensation cabinet, and the closing circuit of circuit breaker of Medium-voltage motor cabinet is closed in closure at this time
Lock could form electric loop when switching, so that Medium-voltage motor cabinet works, mill main motor operation.Otherwise, cement grinding mill feeding end is slided
Carry out petrol station relay normally open contact, cement grinding mill discharge end crawler shoe petrol station relay normally open contact, cement grinding mill main gear reducer petrol station after
Electric appliance normally opened contact, cement grinding mill main motor Lubricating-oil Station relay normally open contact, the switch of contactor touches in mill main motor water resistance
Point, cement grinding mill be auxiliary to pass spacing contact in electric motor clutch, the spacing contact either switch of middle pressure local compensation cabinet cabinet door disconnects, then in
Piezoelectricity cabinet closing circuit can not form electrical circuit, so as to ensure to grind the clean boot of main motor.
When there is abnormal trip in petrol station, petrol station tripping auxiliary switch closure, since the oil pump of petrol station is by relay control
System, auxiliary switch is the normally-closed contact of breaker here, includes normally-closed contact, the water of cement grinding mill feeding end crawler shoe petrol station relay
Mud grinds normally-closed contact, normally-closed contact, the cement grinding mill of cement grinding mill main gear reducer petrol station relay of discharge end crawler shoe petrol station relay
The normally-closed contact of main motor Lubricating-oil Station relay.After wherein a certain petrol station breaks down tripping, its corresponding normally-closed contact is
Closure.Middle pressure compensating cabinet cabinet door sets limit switch, and when the spacing opening of cabinet door, limit switch closes at this time, at this time in order to
Protection mill main motor, Medium-voltage motor cabinet should trip；Water resistance tripping auxiliary switch, after water resistance is due to fault trip, water
Resistance tripping auxiliary switch closure, water resistance tripping auxiliary switch can be the normal of the contactor of control pump working in water resistance
Closed contact, when water resistance does not work, normally-closed contact closure.In order to press spacing compensating cabinet cabinet door, water resistance tripping, oil in realizing
Stand tripping, during any tripping, mill main motor tripping does not work, by the normally-closed contact of cement grinding mill feeding end crawler shoe petrol station relay,
Normally-closed contact, normally-closed contact, the cement of cement grinding mill main gear reducer petrol station relay of cement grinding mill discharge end crawler shoe petrol station relay
Grind the normally-closed contact of main motor Lubricating-oil Station relay, middle pressure compensating cabinet cabinet door sets limit switch, contactor is normal in water resistance
Closed contact is concatenated after being together in parallel successively and is arranged in the trip(ping) circuit of Medium-voltage motor cabinet.As shown in Fig. 2, in cement grinding mill feeding end
The tripping of crawler shoe petrol station, the tripping of cement grinding mill discharge end crawler shoe petrol station, the tripping of cement grinding mill main gear reducer petrol station, cement grinding mill main motor thin oil
Tripping, the middle pressure compensating cabinet cabinet door of standing set limit switch to open or when water resistances trips, its corresponding switch contact closure, then in
The trip(ping) circuit of piezoelectricity cabinet can form electric path, i.e., formed and electrically led to-KM by the contacts of+KM through breaking coil, closure
Road, Medium-voltage motor cabinet trips under the action of coil, and mill main motor is stopped.Here the trip(ping) circuit of Medium-voltage motor cabinet is
For the trip(ping) circuit of the relay in Medium-voltage motor cabinet.
In order to realize the working status of the monitoring mill main motor on miscellaneous equipment, the switching signal of Medium-voltage motor cabinet is sent respectively
Enter into the control system of cement grinding mill feeding end crawler shoe petrol station, in cement grinding mill discharge end crawler shoe petrol station control system, cement grinding mill master
In gear reducer petrol station control system, in cement grinding mill main motor thin oil station control system, it is middle pressure local compensation cabinet control system in,
In the control system of water resistance, in auxiliary biography electric machine control system.The control system of cement grinding mill feeding end crawler shoe petrol station, cement are ground
Expect end crawler shoe petrol station control system, cement grinding mill main gear reducer petrol station control system, cement grinding mill main motor thin oil station control system, in
The control system, the control system of water resistance, auxiliary biography electric machine control system of local compensation cabinet are pressed, these control systems are existing
, its internal control device, which receives closing switch semaphore, to grind the fortune of main motor show in the monitoring system of its own
Market condition.Closing switch amount signal is the switching signal of Medium-voltage motor cabinet, can be gathered and closed by closing coil current collector
The electric current of brake cable circle, is sent to after being handled in the control system of each module and shows.As Lubricating-oil Station can generally set control
Cabinet, instrument, oil pump etc., switch board is interior can be monitored including programmable controller, instrument with each parameter in petrol station, here
The closing coil electric current of collection is sent in programmable controller, is then shown by programmable controller control instrument, its
Its such as water resistance, auxiliary pass, have corresponding control unit and monitoring unit to use in the control system in middle pressure local compensation cabinet
Display monitoring in realization to the switching signal of collection.
Obvious the utility model specific implementation is not subject to the restrictions described above, as long as employing the methodology of the present invention
The improvement of the various unsubstantialities carried out with technical solution, within protection scope of the present invention.
Claims (6)
- The main motor interlocking protective system 1. a kind of cement is milled, including Medium-voltage motor cabinet, mill main motor water resistance, the auxiliary biography of cement grinding mill Motor, middle pressure local compensation cabinet, the Medium-voltage motor cabinet are used to control mill the running of main motor, the mill main motor water power The startup of resistance is controlled by the switch contact of contactor, the auxiliary spacing contact passed in electric motor clutch of the cement grinding mill is used to control The working of the auxiliary machine that conducts electricity, middle pressure local compensation cabinet inner breaker are used in controlling the work for pressing local compensation cabinet, it is characterised in that： The closing circuit of the Medium-voltage motor cabinet inner breaker, which is sequentially connected in series, sets the switch of contactor in mill main motor water resistance to touch Point, cement grinding mill are auxiliary to pass spacing contact in electric motor clutch, the spacing contact of middle pressure local compensation cabinet cabinet door.
- A kind of 2. cement milling main motor interlocking protective system as claimed in claim 1, it is characterised in that：The system further includes Lubricating-oil Station, relay is used for the energization work for controlling Lubricating-oil Station in the Lubricating-oil Station, and relay is normally opened in the petrol station Contact series are arranged in the closing circuit of Medium-voltage motor cabinet inner breaker.
- A kind of 3. cement milling main motor interlocking protective system as claimed in claim 2, it is characterised in that：The petrol station bag It is dilute to include cement grinding mill feeding end crawler shoe petrol station, cement grinding mill discharge end crawler shoe petrol station, cement grinding mill main gear reducer petrol station, cement grinding mill main motor Petrol station, is correspondingly arranged on cement grinding mill feeding end crawler shoe petrol station relay, cement grinding mill discharge end crawler shoe petrol station relay, cement respectively Grind main gear reducer petrol station relay, cement grinding mill main motor Lubricating-oil Station relay.
- A kind of 4. cement milling main motor interlocking protective system as claimed in claim 3, it is characterised in that：The interlock protection system System further includes middle pressure compensating cabinet cabinet door limit switch, water resistance tripping auxiliary switch, petrol station tripping auxiliary switch, middle pressure compensating cabinet Cabinet door opens then middle pressure compensating cabinet cabinet door limit switch closure, water resistance tripping then water resistance tripping auxiliary switch closure, petrol station Then petrol station tripping auxiliary switch closes for tripping, middle pressure compensating cabinet cabinet door limit switch, water resistance tripping auxiliary switch, petrol station tripping It is serially connected in after auxiliary switch three's parallel connection in the trip(ping) circuit of Medium-voltage motor cabinet.
- A kind of 5. cement milling main motor interlocking protective system as claimed in claim 4, it is characterised in that：Petrol station tripping auxiliary Switch as the normally-closed contact of the breaker in petrol station, normally-closed contact respectively including cement grinding mill feeding end crawler shoe petrol station relay, Normally-closed contact, normally-closed contact, the cement of cement grinding mill main gear reducer petrol station relay of cement grinding mill discharge end crawler shoe petrol station relay Grind the normally-closed contact of main motor Lubricating-oil Station relay.
- A kind of 6. cement milling main motor interlocking protective system as described in claim 3 or 4 or 5, it is characterised in that：Described The switching signal of Medium-voltage motor cabinet is respectively fed in the control system of cement grinding mill feeding end crawler shoe petrol station, cement grinding mill discharge end crawler shoe In petrol station control system, in cement grinding mill main gear reducer petrol station control system, in cement grinding mill main motor thin oil station control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280345.2U CN207283151U (en) | 2017-09-30 | 2017-09-30 | A kind of cement milling main motor interlocking protective system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721280345.2U CN207283151U (en) | 2017-09-30 | 2017-09-30 | A kind of cement milling main motor interlocking protective system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207283151U true CN207283151U (en) | 2018-04-27 |
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ID=61987460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721280345.2U Active CN207283151U (en) | 2017-09-30 | 2017-09-30 | A kind of cement milling main motor interlocking protective system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207283151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910711A (en) * | 2018-07-17 | 2018-11-30 | 三汽车起重机械有限公司 | Crane and its height limitator |
| CN111537855A (en) * | 2020-06-16 | 2020-08-14 | 中国科学技术大学 | Highly-automatic photomultiplier performance testing device and testing method |
-
2017
- 2017-09-30 CN CN201721280345.2U patent/CN207283151U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910711A (en) * | 2018-07-17 | 2018-11-30 | 三汽车起重机械有限公司 | Crane and its height limitator |
| CN111537855A (en) * | 2020-06-16 | 2020-08-14 | 中国科学技术大学 | Highly-automatic photomultiplier performance testing device and testing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241000 South Jiuhua Road 1017, Yijiang District, Wuhu City, Anhui Province Patentee after: Anhui Conch Building Materials Design and Research Institute Co., Ltd. Address before: 241000 South Jiuhua Road 1017, Yijiang District, Wuhu City, Anhui Province Patentee before: Anhui Conch Design & Research Institute of Building Materials |
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| CP01 | Change in the name or title of a patent holder |