CN208273326U - A kind of full-automatic electrostatic elimination system - Google Patents
A kind of full-automatic electrostatic elimination system Download PDFInfo
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- CN208273326U CN208273326U CN201820080055.1U CN201820080055U CN208273326U CN 208273326 U CN208273326 U CN 208273326U CN 201820080055 U CN201820080055 U CN 201820080055U CN 208273326 U CN208273326 U CN 208273326U
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- consumer appliance
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- elimination system
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Abstract
A kind of full-automatic electrostatic elimination system is made of work station, PLC control cabinet, sub-control box, consumer appliance, monitor.Consumer appliance is bipolar ion wind type Xelminator, receives the control signal of PLC control cabinet；There is an explosion-proof cell on monitor, explosion-proof chamber is electrostatic charge detection plate.The instrument air that sub-control box processing plant provides is delivered to consumer appliance after filtration, purification decompression, while the ion wind control signal for PLC control cabinet transmission of transferring is to consumer appliance, and receives the pressure feedback pipe pressure of consumer appliance passback to PLC control cabinet.PLC control cabinet acquires the material charge signal of monitor, and the material transport status signal that acquisition consumer appliance transmits calculates the ion wind polarity and intensity of consumer appliance output, eliminates material static electricity charge with ion wind.Work station has liquid crystal display, can be monitored in real time to the various fortune situations of electrostatic elimination system, and database deposit can be carried out to history run curve and is had access to.
Description
Technical field
The utility model belongs to pellet strength transmission technique field, and in particular to a kind of full-automatic electrostatic elimination system.
Background technique
During using PE, PP as the polyolefin material production of representative, pneumatic conveying link can make polyolefin pellets with 1
~5 μ C/kg electrostatic, pellet pneumatic conveying link contains the polyolefin dust such as the wire drawing of certain content, particle at the same time, with this
Polyolefin is also possible to escape with ethylene, the monomer fuel gas that propylene is representative simultaneously, and feed bin does not generate static discharge
Critical value is 0.1~0.2 μ C/kg, and it is high-incidence that above situation causes static discharge to cause polyolefin bunker dust explosion accident.
Polyene hydrocarbon material pneumatic conveying feed bin ELECTROSTATIC DUST explosion accident system is played according to 10 13 covering devices 70 of enterprise in the country
Meter, wherein pellet dust explosion is 62.Wherein LDPE device accident ratio highest, totally 44, accounting 63%, PP device 15
It rises, accounting 21%.
20th century, the seventies were the peak period of foreign oil mechanical ash explosion accident, and had pushed a series of industry real
It tests and studies, research conclusion is " ignition source that the electrostatic of plastics powder itself is certainly big most dust explosions "
(Mr.Glor, 1988), and alert " when handling a kind of product and generate high potential while in explosive atmosphere, this cause
The combination of life makes explosion probability reach maximum ".
Domestic existing powder electrostatic eliminates system, shown in structure and attached drawing 1, it is necessary to right angle setting.Existing use it is quiet
Pyroelectric monitor device is dumpable constant volume type sampling cylinder (CN2261817Y) principle, and sampling cylinder is mounted on electrostatic monitor enclosure interior,
Sampling cylinder can protrude into Pneumatic conveying pipeline a bit, connect storage material and carry out electrostatic charge measurement, measurement and then rotation sampling cylinder,
Sample is bled off by the dodge gate at sampling cylinder bottom.The rotation of sampling cylinder is moved reciprocatingly realization by air cylinder connecting rod.It is existing
Dumpage type constant-volume sampling cylinder principles electrostatic monitor be service intermittent, material sample one, progress electrostatic charge measurement,
It is ready for sampling next time again after outwelling.The time is needed due to filling material, putting net material, it is big to be generally completed the sampling primary time
About need 2min.
Simultaneously as pellet splashes in conveyance conduit, pellet may be fallen after rise into cylinder and sampling cylinder intermediate space, work as product
After tiring out to a certain extent, the movement of sampling cylinder can be obstructed, and cause the material of sampling that cannot empty completely, and sampling is caused to fail.It needs
Personnel are wanted to dismantle electrostatic monitor shell, manual cleanup gets stuck.Prior art poor reliability, service life are low.
In addition, mechanical constant volume is using cylinder sample mode, long using the period, sampling is discontinuous, and sampling is intermediate with countless
According to area, the deficiencies of material charge variation tracing property is poor, and electric eliminating is empirically worth, and convergence is bad, and the residual static electricity quantity of electric charge is high.
Mechanical constant volume uses cylinder sample mode, and after stopping material, system does not know that material transport status changes still, and ion wind is still
It is exported by a upper periodic intensity, causes ion wind to cross supplement, cause feed bin charge to cross supplement, there are security risks.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of safe and reliable, fast
Fast electric eliminating, electrostatic elimination system with long service life.
The technical solution that the utility model solves above-mentioned technical problem is a kind of full-automatic electrostatic elimination system.
A kind of full-automatic electrostatic elimination system is by work station, PLC control cabinet, sub-control box, consumer appliance, monitor group
At.
The consumer appliance is bipolar ion wind type Xelminator, receives the control signal of PLC control cabinet, output intensity
Controllable cation wind or anionic wind；Material transport status monitor is configured in the consumer appliance, can discriminate whether exist
Material transferring.The consumer appliance is positive pressure blast resistance construction, receives the gas from the instrument air after sub-control box decompression, for ion wind
Source；Internal pressure is back to sub-control box by pipeline simultaneously by the consumer appliance, for consumer appliance internal positive pressure condition monitoring.
The consumer appliance, which is mounted on Pneumatic conveying pipeline end, to be entered at feed bin.
The monitor is continuous type electrostatic charge monitor, entire to monitor using farad cylinder electrostatic charge testing principle
There is no rotatable parts and cylinder inside device.There is an explosion-proof cell on the monitor, explosion-proof chamber is electrostatic charge inspection
Drafting board.Electrostatic charge detection plate on monitor transfers real-time electrostatic charge detected value by sub-control box, is transferred to PLC control
Cabinet.The monitor is mounted in the junior direction of consumer appliance material transferring, charges situation for monitoring the material after electric eliminating, is formed anti-
Feedback control.
The instrument air that the sub-control box processing plant provides is delivered to consumer appliance after being filtered purification decompression, simultaneously
The ion wind control signal that PLC control cabinet of transferring is sent receives the pressure feedback pipe pressure of consumer appliance passback to consumer appliance, will
Pressure signal is sent to PLC control cabinet after the conversion of consumer appliance internal pressure.The material that sub-control box simultaneously detects consumer appliance
Transport status signal transfers and is transferred to PLC control cabinet.
The material charge signal of the PLC control cabinet acquisition monitor, the material transport status letter that acquisition consumer appliance transmits
Number, the ion wind polarity and intensity of consumer appliance output are calculated by control algolithm, by transmission control signal to consumer appliance, with from
Sub- wind eliminates material static electricity charge.It is configured with arrester power supply control contactor inside PLC control cabinet, can be wanted according to control
It asks and consumer appliance is powered, is powered off.Electrostatic charge is detected signal, consumer appliance pressure signal, ion wind by PLC control cabinet simultaneously
The on-site signals situation such as output signal is transferred to work station, and the operation of electrostatic elimination system is monitored for operator.PLC control
Cabinet has communication interface simultaneously, can connect with DCS system.
The work station has liquid crystal display, can be monitored in real time to the various fortune situations of electrostatic elimination system,
Database deposit can be carried out to history run curve and is had access to.Work station can print static elimination production run report, and have
Standby equipment runs expert system, provides special statistical report form for production run and expert runs and suggests.
The utility model beneficial effect is:
(1) non-mechanical sampling principle is used, entire charge monitoring unit does not have mechanical component, without cylinder, no
Cylinder dragging constant volume type sampling cylinder splicing and batch turning, the service life and reliability of monitor is needed to greatly improve.
(2) charge monitoring of the utility model is real-time detection, reflects that material carries electrostatic charge situation in real time.Monitoring is rung
Speed is answered to have the raising of principle.
(3) the utility model uses real-time charge monitoring, and cooperation control algolithm makes static elimination mode be real-time tracking
Material charge variation, electric eliminating fast convergence rate, residual charge numerical value is small after electric eliminating, and control is stablized.
(4) the utility model has material transport status detectability, so that electric eliminating convergence rate further improves.It should
Set electrostatic elimination system real-time ensuring electric eliminating residual charge is in extremely low level, so that system is highly safe.
(5) the utility model can detect material transferring state, adjust electric eliminating ion monsoon intensity immediately after stopping material.
Detailed description of the invention
Fig. 1 is electrostatic elimination system structural schematic diagram in the prior art.
Fig. 2 is that the system of the utility model constitutes schematic diagram.
1, work station, 2, PLC control cabinet, 3, sub-control box, 4, consumer appliance, 5, monitor.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Fig. 2, a kind of full-automatic electrostatic elimination system by work station 1, PLC control cabinet 2, sub-control box 3, disappear
Electric appliance 4, monitor 5 form.
The consumer appliance 4 is bipolar ion wind type Xelminator, receives the control signal of PLC control cabinet 2, and output is strong
Spend controllable cation wind or anionic wind；Material transport status detector is configured in the consumer appliance 4, can discriminate whether to deposit
In material transferring.The consumer appliance 4 is positive pressure blast resistance construction, obtains certification of explosion protection, is received empty from the instrument after the decompression of sub-control box 3
Gas, the gas source for ion wind；Internal pressure is back to sub-control box 3 by pipeline simultaneously by the consumer appliance 4, for electric eliminating
4 internal positive pressure condition monitoring of device.The consumer appliance 4, which is mounted on Pneumatic conveying pipeline end, to be entered at feed bin.
The monitor 5 is continuous type electrostatic charge monitor, entire to monitor using farad cylinder electrostatic charge testing principle
There is no rotatable parts and cylinder inside device 5.There is an explosion-proof cell on the monitor 5, explosion-proof chamber is electrostatic charge
Detection plate.The monitor 5 obtains certification of explosion protection.Electrostatic charge detection plate on monitor 5 is by real-time electrostatic charge detected value
It is transferred by sub-control box 3, is transferred to PLC control cabinet 2.The monitor 5 is mounted in the junior direction of 4 material transferring of consumer appliance, uses
Material after monitoring electric eliminating charges situation, forms feedback control.
The instrument air that 3 processing plant of sub-control box provides is delivered to consumer appliance 4 after being filtered purification decompression, together
When switching PLC control cabinet 2 send ion wind control signal to consumer appliance 4, and receive consumer appliance 4 passback pressure feedback pipe pressure
4 internal pressure pick-up of consumer appliance is that 4~20mA signal is sent to PLC control cabinet 2 by power.Sub-control box 3 simultaneously examines consumer appliance 4
The material transport status signal measured, transfers and is transferred to PLC control cabinet 2.
The PLC control cabinet 2 acquires the material charge signal of monitor 5, the material transport status that acquisition consumer appliance 4 transmits
Signal calculates the ion wind polarity and intensity that consumer appliance 4 exports by control algolithm, by transmission control signal to consumer appliance 4,
Material static electricity charge is eliminated with ion wind.4 power supply control contactor of arrester is configured with inside PLC control cabinet 2, it can be according to
Control requires be powered consumer appliance 4, power off.Electrostatic charge is detected signal, 4 pressure of consumer appliance letter by PLC control cabinet 2 simultaneously
Number, the on-site signals situation such as ion wind output signal be transferred to work station 1, the fortune of electrostatic elimination system is monitored for operator
Row.PLC control cabinet 2 has Industrial Ethernet optical fiber interface or MODBUS interface simultaneously, can connect with DCS system.
The work station 1 have liquid crystal large screen display, can in real time to the various fortune situations of electrostatic elimination system into
Row monitoring can carry out database deposit and be had access to history run curve.Work station 1 can print static elimination production run report
Table, and have equipment operation expert system, special statistical report form is provided for production run and expert runs and suggests.
The utility model uses non-mechanical sampling principle, and entire charge monitoring unit does not have mechanical component, do not have
Cylinder, does not need cylinder dragging constant volume type sampling cylinder splicing and batch turning, the service life and reliability of monitor greatly improve.
The charge monitoring of the utility model is real-time detection, reflects that material carries electrostatic charge situation in real time.Monitoring response
Speed has the raising of principle.
The utility model uses real-time charge monitoring, and cooperation control algolithm makes static elimination mode be real-time tracking material
Charge variation, electric eliminating fast convergence rate, residual charge numerical value is small after electric eliminating, and control is stablized.
The utility model has material transport status detectability, so that electric eliminating convergence rate further improves.The set
Electrostatic elimination system real-time ensuring electric eliminating residual charge is in extremely low level, so that system is highly safe.
The utility model can detect material transferring state, adjust electric eliminating ion monsoon intensity immediately after stopping material.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (9)
1. a kind of full-automatic electrostatic elimination system, it is characterised in that: include: work station, PLC control cabinet, sub-control box, consumer appliance
And monitor；
The work station has display, can be monitored in real time to the various fortune situations of electrostatic elimination system, to history run
Curve carries out database deposit and has access to；
The material charge signal of the PLC control cabinet acquisition monitor, the material transport status signal that acquisition consumer appliance transmits lead to
Ion wind polarity and intensity that control algolithm calculates consumer appliance output are crossed, by transmission control signal to consumer appliance, uses ion wind
Eliminate material static electricity charge；
The instrument air that the sub-control box processing plant provides is delivered to consumer appliance after being filtered purification decompression, transfers simultaneously
The ion wind control signal that PLC control cabinet is sent receives the pressure feedback pipe pressure of consumer appliance passback to consumer appliance, by electric eliminating
Pressure signal is sent to PLC control cabinet after the conversion of device internal pressure, the material that sub-control box simultaneously detects consumer appliance conveys
Status signal transfers and is transferred to PLC control cabinet；
The consumer appliance, which is mounted on Pneumatic conveying pipeline end, to be entered at feed bin；The consumer appliance is bipolar ion wind type
Xelminator receives the control signal of PLC control cabinet, the controllable ion wind of output intensity；
The monitor is mounted in the junior direction of consumer appliance material transferring, charges situation for monitoring the material after electric eliminating, is formed
Feedback control.
2. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: the monitor is to use
The continuous type electrostatic charge monitor of farad cylinder electrostatic charge testing principle, entire monitor inside do not have rotatable parts and gas
Cylinder.
3. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: configuration in the consumer appliance
Material transport status detector, discriminates whether that there are material transferrings.
4. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: the consumer appliance is positive pressure
Blast resistance construction receives the gas source from the instrument air after sub-control box decompression, for ion wind；Consumer appliance simultaneously leads to internal pressure
Piping is back to sub-control box, for consumer appliance internal positive pressure condition monitoring.
5. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: have one on the monitor
A explosion-proof cell, explosion-proof chamber are electrostatic charge detection plate, and the electrostatic charge detection plate on monitor is electric by real-time electrostatic
Lotus detected value is transferred by sub-control box, is transferred to PLC control cabinet.
6. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: in the PLC control cabinet
Portion is configured with arrester power supply control contactor, requires to be powered consumer appliance according to control, power off.
7. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: the PLC control cabinet will
The case where electrostatic charge detection signal, consumer appliance pressure signal, ion wind output signal, is transferred to work station, is used for operator
Monitor the operation of electrostatic elimination system.
8. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: the PLC control cabinet is same
When have communication interface, connect with DCS system.
9. a kind of full-automatic electrostatic elimination system according to claim 1, it is characterised in that: the work station can print
Static elimination production run report, and have equipment operation expert system, special statistical report form and expert are provided for production run
Operation is suggested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820080055.1U CN208273326U (en) | 2018-01-18 | 2018-01-18 | A kind of full-automatic electrostatic elimination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820080055.1U CN208273326U (en) | 2018-01-18 | 2018-01-18 | A kind of full-automatic electrostatic elimination system |
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| Publication Number | Publication Date |
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| CN208273326U true CN208273326U (en) | 2018-12-21 |
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ID=64672696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820080055.1U Active CN208273326U (en) | 2018-01-18 | 2018-01-18 | A kind of full-automatic electrostatic elimination system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322980A (en) * | 2018-01-18 | 2018-07-24 | 北京普惠实华科技有限公司 | A kind of full-automatic electrostatic elimination system |
| CN109688682A (en) * | 2018-12-30 | 2019-04-26 | 上海安平静电科技有限公司 | A kind of direct current powder charger-eliminator and eliminate system |
-
2018
- 2018-01-18 CN CN201820080055.1U patent/CN208273326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322980A (en) * | 2018-01-18 | 2018-07-24 | 北京普惠实华科技有限公司 | A kind of full-automatic electrostatic elimination system |
| CN109688682A (en) * | 2018-12-30 | 2019-04-26 | 上海安平静电科技有限公司 | A kind of direct current powder charger-eliminator and eliminate system |
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