CN109127168A - A kind of control method based on disk centrifugal separator deslagging - Google Patents
A kind of control method based on disk centrifugal separator deslagging Download PDFInfo
- Publication number
- CN109127168A CN109127168A CN201810817142.5A CN201810817142A CN109127168A CN 109127168 A CN109127168 A CN 109127168A CN 201810817142 A CN201810817142 A CN 201810817142A CN 109127168 A CN109127168 A CN 109127168A
- Authority
- CN
- China
- Prior art keywords
- frequency
- deslagging
- frequency converter
- plc
- centrifugal machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
Landscapes
- Centrifugal Separators (AREA)
Abstract
The present invention relates to a kind of control methods based on butterfly centrifugal machine deslagging, comprising the following steps: the starting of butterfly centrifugal machine, PLC control frequency converter starting, and separation valve group control makes slagging mechanism carry out deslagging process, stop cleaning；Deslagging timing successively includes reduction of speed time, deceleration time, opening time, Sealing period and speed-raising time；PLC exports setting value to frequency converter, runs frequency converter stage by stage according to setting value, setting value includes output frequency and the time in deslagging timing each stage.It is an advantage of the invention that using variable frequency starting, converting operation mode, frequency when deslagging can be set in the process of running, make centrifuge reduction of speed, frequency converter not only can be solved because of loss caused by big, impact of deslagging electric current etc., and perfect can circumvent impact to disk centrifugal machine power axis, to deslagging after frequency converter frequency increase, motor automatic raising speed, the separation for carrying out material, does not influence the separating effect of material.
Description
Technical field
The present invention relates to a kind of control methods based on disk centrifugal separator deslagging, belong to Centrifugal Machine Control technical field.
Background technique
The current operating condition of disk centrifuge is variable frequency starting, power frequency operation, and the control mode of power frequency deslagging is realized and divided
From letting cinder control.However, by continuous it was verified that the distinctive deslagging electric current raising of disk centrifugal separator deslagging, disk centrifugal
Machine uses the impact easy to form to disk centrifugal machine power axis of this working method vulnerable to attributes such as rush of current for a long time,
It causes centrifuge maintenance frequently, increases the loss to frequency converter, maintenance cost is high, is unfavorable for enterprise's production, operation and developing city
?.
Summary of the invention
It is an object of the invention to: in view of the defects existing in the prior art, propose a kind of based on disk centrifugal separator deslagging
Control method.
In order to reach the goals above, the present invention provides a kind of control method based on butterfly centrifugal machine deslagging, including following
Step:
The first step, PLC control butterfly centrifugal machine starting, each valve group are acted by startup stage timing；
Second step, PLC check that frequency converter and slagging mechanism whether there is fault alarm, and if it exists, then end operation, to check event
Hinder reason, if it does not exist, then PLC controls frequency converter and continues to run, and so that slagging mechanism is carried out deslagging process, deslagging timing is successively
Including reduction of speed time, deceleration time, opening time, Sealing period and speed-raising time；
Third step, PLC output setting value run frequency converter stage by stage according to setting value, setting value includes deslagging to frequency converter
The output frequency in timing each stage and time.
Butterfly centrifugal machine starting of the invention, after PLC controls frequency converter starting, separation valve group control, slagging mechanism is carried out
Deslagging process, last stop cleaning.
Further, in the first step, before starting butterfly centrifugal machine, PLC is powered, and checks and leads between PLC and frequency converter
Whether news are normal, if communication is normal, start butterfly centrifugal machine, and PLC controls frequency converter and works, if communication is abnormal, break down,
Operation terminates, to check communication failure reason.
Further, TCP/IP communication modes are used between PLC and frequency converter, form frequency converter, PLC, touch screen
Ethernet communication.
Further, in second step, slagging mechanism uses the control mode of variable frequency starting, power frequency operation, frequency conversion deslagging.
Further, in second step, frequency converter and slagging mechanism break down after alarming, and check the original of failure
Cause, when failure cause is overcurrent fault or vibration is excessive, butterfly centrifugal machine is shut down and is repaired to it, then returns to step
Rapid one, restart butterfly centrifugal machine.
Further, in third step, frequency converter runs that specific step is as follows according to setting value stage by stage:
31, when deslagging is arranged in PLC after the frequency of reduction of speed, deslagging raising speed frequency, after timing covers reduction of speed time, PLC
Issue frequency of the reduction of speed frequency to frequency converter, when its working frequency is down to deslagging in given deceleration time by frequency converter；
32, deslagging process stages PLC controls opening valve, opens cleaning water valve, and cleaning water valve is closed after a period of time, and PLC is controlled again
Sealing valve processed opens sealing valve；
33, PLC issue raising speed frequency to frequency converter, frequency converter within the equal proportion relationship time by its frequency by deslagging when reduction of speed
The frequency of raising speed after frequency upgrading to deslagging.
Further, when the frequency of raising speed is 50HZ after deslagging, speed up time is 0~50HZ equal proportion relationship time
Are as follows: the time required to frequency rises to 50HZ by 0HZ, generally 600S；
When frequency when deslagging is 42HZ, the frequency of that frequency converter is promoted to 50HZ, required time 96S by 42HZ.
Further, disk centrifugal separator uses speed reducing stopping, and frequency converter is connect with brake unit, braking resistor.
In order to prevent frequency converter in moderating process because deceleration time it is too short occur overcurrent scene, invention increases
Brake unit and braking resistor.
Further, the motor of the slagging mechanism is connect with power frequency contactor all the way, and another way and frequency conversion contactor connect
It connects, the frequency conversion contactor is connect with frequency converter；After frequency converter starts to full speed, power frequency contactor connection, frequency conversion contactor breaks
It opens；When butterfly seperator switches to frequency conversion deslagging mode, power frequency contactor is disconnected, the connection of frequency conversion contactor.
In aforesaid operations, switch to frequency conversion in a flash since butterfly seperator torque is larger, frequency converter often will appear
Alarm phenomenon.It is found by test of many times, using inverter control signal is increased, allows frequency converter to forbid in power frequency operation defeated
Out, allow frequency converter to export by disconnecting power frequency contactor signal when switching to frequency conversion, frequency converter report is solved by interlocking
Alert problem.
It is an advantage of the invention that can be set in the process of running by the way of variable frequency starting, power frequency operation, frequency conversion deslagging
Determine frequency when deslagging, make centrifuge reduction of speed, frequency converter not only can be solved because caused by big, impact of deslagging electric current etc.
Loss, and perfect can circumvent the impact to disk centrifugal machine power axis, to deslagging after frequency converter frequency increase, motor is automatic
Raising speed, carries out the separation of material, does not influence the separating effect of material.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is flow chart of the invention.
Specific embodiment
Embodiment one
Present embodiments provide a kind of control method based on butterfly centrifugal machine deslagging, comprising the following steps:
The first step, before starting butterfly centrifugal machine, PLC is powered, check communicated between PLC and frequency converter it is whether normal, if logical
News are normal, start butterfly centrifugal machine, and PLC controls frequency converter work, if communication is abnormal, breaks down, and operation terminates, to check
Communication failure reason.TCP/IP communication modes are used between PLC and frequency converter, and frequency converter, PLC, touch screen is made to form Ethernet
Communication.PLC controls the starting of butterfly centrifugal machine, and each valve group is acted by startup stage timing.
Second step, PLC check that frequency converter and slagging mechanism whether there is fault alarm, and if it exists, then end operation, with inspection
Failure cause is looked into, if it does not exist, then PLC controls frequency converter starting, so that slagging mechanism is carried out deslagging process, deslagging timing is successively
Including reduction of speed time, deceleration time, opening time, Sealing period and speed-raising time.Slagging mechanism uses variable frequency starting, work
Frequently it runs, the control mode of frequency conversion deslagging.Frequency converter and slagging mechanism break down after alarm, check the reason of breaking down,
When failure cause is overcurrent fault, vibrates the reasons such as excessive, butterfly centrifugal machine, which is shut down, simultaneously repairs it, then returns
Step 1 restarts butterfly centrifugal machine.
Third step, PLC output setting value run frequency converter stage by stage according to setting value, setting value includes to frequency converter
The output frequency in deslagging timing each stage and time, after frequency converter end of run, selection restarts deslagging as needed
Frequency control circulation or orderly closedown.
Frequency converter runs that specific step is as follows according to setting value stage by stage:
31, frequency (42HZ) when PLC is arranged deslagging, after deslagging raising speed frequency (50HZ), when timing, which covers reduction of speed, to be prepared
Between after, PLC issues reduction of speed and instructs to frequency converter, its working frequency is down to row in given deceleration time (30S) by frequency converter
Frequency when slag；
32, the frequency of frequency converter is down to after 42HZ in 30S, and PLC controls opening valve, cleaning water valve is opened, after a period of time
Cleaning water valve is closed, PLC gives order to sealing valve again, opens sealing valve；
33, it after total time required for PLC calculates this section of process of opening time and Sealing period according to logical operation, is opening
After opening/sealing, PLC issues speed-raising instruction to frequency converter and carries out raising speed movement, and frequency converter will within the equal proportion relationship time
The frequency of raising speed after frequency upgrading to deslagging when its frequency is by deslagging.When the frequency of raising speed is 50HZ after deslagging, when raising speed
Between be 0~50HZ equal proportion relationship time are as follows: the time required to frequency rises to 50HZ by 0HZ, generally 600S；Frequency when deslagging
When rate is 42HZ, the frequency of that frequency converter is promoted to 50HZ, required time 96S by 42HZ, and so on.
In addition, frequency converter is connect with brake unit, braking resistor.The motor of slagging mechanism connects with power frequency contactor all the way
It connects, another way is connect with frequency conversion contactor, and frequency conversion contactor is connect with frequency converter.After frequency converter starts to full speed, power frequency contact
Device connection, frequency conversion contactor disconnect.When butterfly seperator switches to frequency conversion deslagging mode, power frequency contactor is disconnected, frequency conversion contact
Device connection.Switch to frequency conversion in a flash since butterfly seperator torque is larger, frequency converter often will appear alarm phenomenon.By
Test of many times discovery allows frequency converter to forbid exporting, when switching to frequency conversion using inverter control signal is increased in power frequency operation
Allow frequency converter to export by disconnecting power frequency contactor signal, solves the problems, such as that frequency converter is alarmed by interlocking.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (9)
1. a kind of control method based on butterfly centrifugal machine deslagging, which comprises the following steps:
The first step, PLC control butterfly centrifugal machine starting, each valve group are acted by startup stage timing；
Second step, PLC check that frequency converter and slagging mechanism whether there is fault alarm, and if it exists, then end operation, to check event
Hinder reason, if it does not exist, then PLC controls frequency converter and continues to run, and so that slagging mechanism is carried out deslagging process, deslagging timing is successively
Including reduction of speed time, deceleration time, opening time, Sealing period and speed-raising time；
Third step, PLC output setting value run frequency converter stage by stage according to setting value, setting value includes deslagging to frequency converter
The output frequency in timing each stage and time.
2. a kind of control method based on butterfly centrifugal machine deslagging according to claim 1, which is characterized in that in the first step,
Normally whether before starting butterfly centrifugal machine, PLC is powered, check and communicate between PLC and frequency converter, if communication is normal, starting
Butterfly centrifugal machine, PLC controls frequency converter work, if communication is abnormal, breaks down, and operation terminates, to check communication failure original
Cause.
3. a kind of control method based on butterfly centrifugal machine deslagging according to claim 2, which is characterized in that PLC and frequency conversion
TCP/IP communication modes are used between device, and frequency converter, PLC, touch screen is made to form ethernet communication.
4. a kind of control method based on butterfly centrifugal machine deslagging according to claim 1, which is characterized in that in second step,
Slagging mechanism uses variable frequency starting, power frequency operation, frequency conversion letting cinder control mode.
5. a kind of control method based on butterfly centrifugal machine deslagging according to claim 4, which is characterized in that in second step,
Frequency converter and slagging mechanism break down after alarm, the reason of breaking down are checked, when failure cause is overcurrent fault or vibration
When moving excessive, butterfly centrifugal machine is shut down and is repaired to it, then return step one, restarts butterfly centrifugal machine.
6. a kind of control method based on butterfly centrifugal machine deslagging according to claim 1, which is characterized in that in third step,
Frequency converter runs that specific step is as follows according to setting value stage by stage:
31, frequency when PLC is arranged deslagging, after deslagging raising speed frequency, after timing covers reduction of speed time, PLC is issued
Frequency of the reduction of speed frequency to frequency converter, when its working frequency is down to deslagging in given deceleration time by frequency converter；
32, deslagging process stages PLC controls opening valve, opens cleaning water valve, and cleaning water valve is closed after a period of time, and PLC is controlled again
Sealing valve processed opens sealing valve；
33, PLC issue raising speed frequency to frequency converter, frequency converter within the equal proportion relationship time by its frequency by deslagging when reduction of speed
The frequency of raising speed after frequency upgrading to deslagging.
7. a kind of control method based on butterfly centrifugal machine deslagging according to claim 6, which is characterized in that risen after deslagging
When the frequency of speed is 50HZ, speed up time is 0~50HZ equal proportion relationship time are as follows: the time required to frequency rises to 50HZ by 0HZ,
Generally 600S；
When frequency when deslagging is 42HZ, the frequency of that frequency converter is promoted to 50HZ, required time 96S by 42HZ.
8. a kind of control method based on butterfly centrifugal machine deslagging according to claim 6, which is characterized in that disk centrifugal separator
Using speed reducing stopping, frequency converter is connect with brake unit, braking resistor.
9. a kind of control method based on butterfly centrifugal machine deslagging according to claim 8, which is characterized in that slagging mechanism
Motor is connect with power frequency contactor all the way, and another way is connect with frequency conversion contactor, and frequency conversion contactor is connect with frequency converter；Frequency converter
After starting to full speed, power frequency contactor connection, frequency conversion contactor is disconnected；When butterfly seperator switches to frequency conversion deslagging mode, work
Frequency contactor disconnects, the connection of frequency conversion contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817142.5A CN109127168A (en) | 2018-07-24 | 2018-07-24 | A kind of control method based on disk centrifugal separator deslagging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810817142.5A CN109127168A (en) | 2018-07-24 | 2018-07-24 | A kind of control method based on disk centrifugal separator deslagging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109127168A true CN109127168A (en) | 2019-01-04 |
Family
ID=64797856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810817142.5A Pending CN109127168A (en) | 2018-07-24 | 2018-07-24 | A kind of control method based on disk centrifugal separator deslagging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109127168A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838753A (en) * | 2020-11-13 | 2021-05-25 | 南京中船绿洲机器有限公司 | Method for protecting frequency converter under high-current condition of separator |
| CN112973989A (en) * | 2021-02-25 | 2021-06-18 | 河北诚信集团有限公司 | Vibration reduction method for spiral centrifugal machine without stopping |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805876A1 (en) * | 1988-02-25 | 1989-08-31 | Sigma Laborzentrifugen Gmbh | CENTRIFUGE FOR LABORATORY PURPOSES |
| CN1761129A (en) * | 2005-11-16 | 2006-04-19 | 上海安亭科学仪器厂 | Electrical motor of frequency conversion controlled centrifuge |
| CN103567085A (en) * | 2013-09-18 | 2014-02-12 | 浙江索纳克生物科技有限公司 | High-efficient environment-friendly disc separator |
| CN105262375A (en) * | 2015-11-16 | 2016-01-20 | 重庆师范大学 | Centrifuge frequency-converting control circuit and control method thereof |
| CN106452274A (en) * | 2016-06-29 | 2017-02-22 | 南京中船绿洲机器有限公司 | Frequency conversion-power frequency-frequency conversion control method based on separator |
| CN107661817A (en) * | 2017-10-16 | 2018-02-06 | 南京中船绿洲机器有限公司 | A kind of disk centrifuge control system and its control method |
-
2018
- 2018-07-24 CN CN201810817142.5A patent/CN109127168A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805876A1 (en) * | 1988-02-25 | 1989-08-31 | Sigma Laborzentrifugen Gmbh | CENTRIFUGE FOR LABORATORY PURPOSES |
| CN1761129A (en) * | 2005-11-16 | 2006-04-19 | 上海安亭科学仪器厂 | Electrical motor of frequency conversion controlled centrifuge |
| CN103567085A (en) * | 2013-09-18 | 2014-02-12 | 浙江索纳克生物科技有限公司 | High-efficient environment-friendly disc separator |
| CN105262375A (en) * | 2015-11-16 | 2016-01-20 | 重庆师范大学 | Centrifuge frequency-converting control circuit and control method thereof |
| CN106452274A (en) * | 2016-06-29 | 2017-02-22 | 南京中船绿洲机器有限公司 | Frequency conversion-power frequency-frequency conversion control method based on separator |
| CN107661817A (en) * | 2017-10-16 | 2018-02-06 | 南京中船绿洲机器有限公司 | A kind of disk centrifuge control system and its control method |
Non-Patent Citations (4)
| Title |
|---|
| 张克涵 等: "《PLC原理与工程应用技术》", 30 April 2016, 北京：国防工业出版社 * |
| 武跃力等: "弃置分油机在WZ11-1油田的应用", 《自动化与传动》 * |
| 王向中: "《城市轨道交通车站机电设备检修工-综合监控和BAS设备检修》", 28 February 2016, 中国铁道出版社 * |
| 邹奔腾: "船舶分油机的PLC控制及其仿真系统设计与实现", 《中国优秀硕士学位论文全文数据库-工程科技Ⅱ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112838753A (en) * | 2020-11-13 | 2021-05-25 | 南京中船绿洲机器有限公司 | Method for protecting frequency converter under high-current condition of separator |
| CN112973989A (en) * | 2021-02-25 | 2021-06-18 | 河北诚信集团有限公司 | Vibration reduction method for spiral centrifugal machine without stopping |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202435320U (en) | Protection circuit of soft starter | |
| CN109127168A (en) | A kind of control method based on disk centrifugal separator deslagging | |
| CN110988665B (en) | Abnormal alarm method for closing function of spring type circuit breaker | |
| CN101645683B (en) | Variable frequency speed regulating system of high-frequency vibrating motor | |
| CN108631360B (en) | Multi-machine load shedding synchronous triggering method and system for single-outlet pumped storage power station | |
| CN103615322B (en) | TRT unit overspeed control system and hypervelocity controlling method thereof | |
| CN105261530B (en) | A kind of more strokes of breaker realize circuit and control method | |
| CN208257694U (en) | A kind of electric motor starting control device | |
| CN104863835A (en) | Air compressor control method and system | |
| CN112383034B (en) | Operation relay device, converter transformer protection tripping system and tripping method | |
| CN108361185A (en) | A kind of the startup control method and startup control system of air compressor machine | |
| CN207008393U (en) | Automatic switching control device | |
| CN104320039A (en) | Drive control method and device of final dusting high-voltage motor of steel mill | |
| CN210154027U (en) | Fault-tolerant circuit of variable-frequency air conditioner controller | |
| CN204131095U (en) | The anti-shake electric installation of low voltage frequency converter | |
| CN109361329B (en) | Braking system and method for medium and large-sized unit | |
| CN207318962U (en) | One kind centrifugation motor electrical control gear | |
| CN216449925U (en) | Variable-frequency operation controller for carbonate continuous production equipment | |
| CN111799762A (en) | Wind turbine generator set and method for preventing engine room of fan from being on fire | |
| CN113685237B (en) | Rapid starting system and one-key rapid starting method for generator set under fault condition | |
| CN110566291B (en) | Turbine lubricating oil pump control system and control method | |
| CN113300261B (en) | Switch cabinet electric operation fault judgment system and control method thereof | |
| CN211405454U (en) | Light gas protection device | |
| CN118091219B (en) | Battery simulator switching system and control method thereof | |
| CN103509933A (en) | Fault treatment system and method of trolley type spherulitic graphite cast pipe annealing furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |