CN201309711Y - Powdery material electrostatic elimination device of fully-automatic hopper - Google Patents
Powdery material electrostatic elimination device of fully-automatic hopper Download PDFInfo
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- CN201309711Y CN201309711Y CNU2008201233884U CN200820123388U CN201309711Y CN 201309711 Y CN201309711 Y CN 201309711Y CN U2008201233884 U CNU2008201233884 U CN U2008201233884U CN 200820123388 U CN200820123388 U CN 200820123388U CN 201309711 Y CN201309711 Y CN 201309711Y
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Abstract
The utility model relates to a powdery material electrostatic elimination device of a fully-automatic hopper, which is applied to eliminating static electricity in the hopper of the oil landification industry. The powdery material electrostatic elimination device is characterized by comprising a flame-proof type controller and a flange-type electrostatic eliminator. A casing of a flame-proof type case is internally provided with an air switch, a power supply switch and a programmable controller, and the flame-proof type controller is fixed with a pressure sensor. The casing of the flame-proof case is fixed with a wire connecting terminal. Two ends of the casing are connected with flanges, and an air pressure signal pipe is connected to the upper part of the casing. A signal cable is connected to the upper part of the casing. An inner cavity of the casing is provided with a high pressure module which is connected with a corona discharge terminal. The flame-proof type controller is used for controlling an ion electrostatic eliminator to eliminate static electricity and realizing the positive pressure ventilation flame-proof function. When the pressure value of protective gas is less than the set minimum positive pressure value, a power supply of the ion electrostatic eliminator is cut off so as to realize the positive pressure ventilation flame-proof function.
Description
Technical field
The utility model relates to petrochemical complex powder safety engineering field, and particularly a kind of powder electrostatic that is used in the petroleum and petrochemical industry enterprise material bin is eliminated, and is that a kind of powder material storehouse static that can prevent fires the powder material static eraser.
Background technology
Send in the process at powder material wind, since collision and friction between powder material and carrier wall, and make powder material itself carry a large amount of static charges, and electric charge follows powder material to enter feed bin together, when build-up of static charges arrives to a certain degree, will pile on the surface at powder material and discharge.The spark discharge that can cause danger between the metal protrusion in feed bin, very easily combustible dust or the volatilization gas in the ignition and blasting feed bin causes the feed bin blast accident to take place.
At present, in order to reduce and to eliminate static hazard in the feed bin, people have adopted certain methods, as: with antisatic additive, reduce delivery speed, remove metal protrusion in the storehouse, control the content of comb. volatile component etc.But when fluctuation took place for some at production process, the reliability of these measures can be weakened.So effective method is still eliminated the static of powder material.Use static eraser to use reverse polarity charging neutrality medium institute electrically charged exactly.Electrostatic apparatus in the elimination feed bin commonly used mainly contains two kinds of passive type X eliminator or active formula X eliminators.
The passive type X eliminator claims the self-inducting consumer appliance again.The self-inducting consumer appliance is that the electrostatic field of using charged powder material self makes the most advanced and sophisticated bunch discharge that takes place of connected to chassis induction electrode produce ion, and charged powder material surface is arrived in the ion drift of reverse polarity, thereby eliminates powder material surface electrostatic lotus.The self-inducting consumer appliance rely on the bunch discharge at induction electrode tip come in and the reverse polarity ion of material, the deficiency of existence is: charged hour when powder material, do not eliminate the ability of static, so there is certain dangerous area.
The X eliminator of active formula self can initiatively produce ion, thereby neutralizes the electric charge on static electrification powder material surface.The product that uses mainly contains radiant rays formula X eliminator and the active X eliminator of ion wind at present.The electric energy power that disappears of radiant rays formula consumer appliance is lower, and is very limited in the use of active source; Most popular is active ion wind type X eliminator, and active ion wind type X eliminator mainly contains three types: direct current unipolarity, source of AC type and bipolarity.
The utility model content
The purpose of this utility model is: a kind of full automaticity moulding mixture storehouse powder material static eraser is provided, can eliminate the static that powder material carries in the feed bin, adopt the automatic tracking type electric control technology that disappears, make the powder material electric residue reduce to minimum, satisfy on-the-spot long-term safety operating needs.
The technical solution adopted in the utility model is: the utility model full automaticity moulding mixture storehouse powder material static eraser, form by flame-proof type controller and flange form consumer appliance two parts.The structure of flame-proof type controller is: in Flameproof box shell first chamber air switch, source switch and Programmable Logic Controller are housed, it is characterized in that: on the Flameproof box shell, be fixed with pipe joint, the inner at pipe joint is fixed with pressure sensor, is connected with the air pressure signal pipe in the outer end of pipe joint.At the Flameproof box shell second chamber internal fixation connection terminal is arranged, the Flameproof box housing exterior has signal cable to be connected with connection terminal.The structure of flange form consumer appliance is: there is butt flange at the two ends at housing, and the other end of air pressure signal pipe is connected housing top, can give pressure sensor the pressure signal transmission in the housing by the air pressure signal pipe.The binding post of the other end of signal cable by housing top connects high-pressure modular, can provide the control power supply for the high-pressure modular of enclosure interior by signal cable.Also be connected with the instrument airduct on housing top, industrial wind sent into housing, keep the positive draft of enclosure interior by the instrument airduct.At the housing inner chamber high-pressure modular is housed, high-pressure modular connects the corona terminal, and the corona terminal is fixed on the interior cross wall of housing.The flame-proof type controller is used to control the positive draft explosion prevention function that the ion consumer appliance is eliminated static and realized total system.When the pressure of atmosphere gas during less than the minimum malleation value set, disconnect the power supply of ion consumer appliance, realize the positive draft explosion prevention function.
A flame-proof type controller is connected with 1～8 flange form consumer appliance by signal cable and air pressure signal pipe.
The high-voltage electronic component of the generation that is cured as one is equipped with in high-pressure modular inside, and high-pressure modular is fixed in the housing inner chamber.The corona terminal is made up of polytetrafluoroethylene pedestal and corona discharge needle.There is sale in high-pressure modular and corona terminal market.
Each high-pressure modular can connect 6-12 corona terminal.
The flame-proof type controller can be installed on the powder material warehouse upper brace, but also fitting operation chamber etc. is located.
In use; as long as atmosphere gas pressure is normal; no matter how the size and the polarity of body of powder electrification change; during the reverse polarity electric charge that the flange form consumer appliance can both produce equivalent automatically comes and the static charge of powder; this process is without any need for manual intervention; therefore, the utility model full automaticity moulding mixture storehouse powder material static eraser is very easy to use.
Full automaticity moulding mixture storehouse powder material static eraser the key technical indexes is as follows:
Electrical efficiency disappears: greater than 90%;
The explosion-proof sign of controller: ExdIIBT5;
The explosion-proof sign of flange form consumer appliance: ExpIIT5;
Corona discharge needle needle body voltage: 8kV ± 10%
The atmosphere gas pressure of setting: 0.3～0.6MPa.
The flame-proof type controller belongs to the flame-proof type electric equipment, should satisfy national standard " the general requirement of explosion-proof electric equipment of GB3836.1-2000 explosive atmosphere " and " technical requirements of GB3836.2-2000 explosive atmosphere current consumer equipment flame-proof type electric equipment ".The flange form consumer appliance belongs to positive draft type explosion-proof electric equipment, should satisfy the technical requirements of national standard " the general requirement of explosion-proof electric equipment of GB3836.1-2000 explosive atmosphere " and " GB3836.5-2004 explosive atmosphere explosion-proof electric equipment positive pressure type electric equipment ".
The beneficial effects of the utility model: the utility model full automaticity moulding mixture storehouse powder material static eraser, the form that has adopted the DC bipolar ion to inject, by wind effect, the stable negative ions that sprays, the increase of electro ultrafiltration space disappears, improve the electrical efficiency that disappears, make the powder electric residue reduce to minimum.The design of employing new structure, the cleaning of the electric terminal that conveniently disappears, the electrical efficiency that disappears of assurance long-term work.
1, explosion-proof performance is good: adopt the gas-lock system that is electrically connected, cut off the power supply during blowing-out, guarantee the positive draft of flange form consumer appliance housing; When flange form consumer appliance inside did not have atmosphere gas or gaseous tension not enough, controller can guarantee that the ion consumer appliance that is in dangerous place with a potential explosion disconnects power supply.
2, easy cleaning: adopt the new structure design, the timely cleaning after making things convenient for the corona terminal by dust pollution, the decline of the electrical efficiency that prevents to disappear guarantees the discharge system long-term work.
3, the electric effect that disappears is obvious: utilize ion wind that powder material static is neutralized, body of powder electrification is reduced in the safe limit.The electric effect that disappears of this electric equipment that disappears is obvious.
Description of drawings
Fig. 1 is the utility model full automaticity moulding mixture storehouse powder material static eraser structural representation.
Among the figure, 1. AC power cord, 2. pressure sensor, 3. Flameproof box shell, 4. Switching Power Supply, 5. Programmable Logic Controller, 6. connection terminal, 7. air switch, 8. signal cable, 9. instrument airduct, 10. housing, 11. butt flanges, 12. the air pressure signal pipe, 13. high-pressure modulars, 14. corona terminals, 15. washout hole, 16. feed bins.
The specific embodiment
Embodiment 1: with a full automaticity moulding mixture storehouse powder material static eraser that is used for the polyolefin powder material warehouse is example, and the utility model is described in further detail.
Consult Fig. 1.Full automaticity moulding mixture storehouse powder material static eraser is made up of flame-proof type controller and flange form consumer appliance two parts.Be connected with signal cable 8 by air pressure signal pipe 12 between flame-proof type controller and the flange form consumer appliance.A flame-proof type controller is connected with 4 flange form consumer appliances.The flame-proof type controller is installed on the platform on powder material warehouse 16 tops.By butt flange 11 the flange form consumer appliance is installed on feed bin 16 inlets.
The structure of flame-proof type controller is: in Flameproof box shell 3 first chambers air switch 7, source switch 4 and Programmable Logic Controller 5 are housed, air switch 7 connects 220V AC power cord 1.Air switch 7, source switch 4 are connected with Programmable Logic Controller 5, and those skilled in the art can finish.Be fixed with pipe joint on Flameproof box shell 3, be fixed with pressure sensor 2 in the inner of pipe joint, be connected with air pressure signal pipe 12 in the outer end of pipe joint, the internal diameter of air pressure signal pipe 12 is 8 millimeters.At Flameproof box shell 3 second chamber internal fixation connection terminal 6 is arranged, can connect the control power supply of air switch 7, source switch 4 and Programmable Logic Controller 5, external power supply and flange form consumer appliance internal high pressure module.Flameproof box shell 3 outsides have signal cable 8 to be connected with connection terminal 6.
The structure of flange form consumer appliance is: at the two ends of housing 10 butt flange 11 is arranged, the other end of air pressure signal pipe 12 is connected on the plane on housing 10 tops, can give pressure sensor 2 pressure signal transmission in the housing 10 by air pressure signal pipe 12.The other end of signal cable 8 is connected housing 10 tops, can provide the control power supply for housing 10 in-to-in high-pressure modulars 13 by signal cable 8.Also be connected with instrument airduct 9 on housing 10 tops, industrial wind sent into housing 10, keep housing 10 in-to-in positive drafts by instrument airduct 9.At housing 10 inner chambers high-pressure modular 13 is housed, the high-voltage electronic component of the generation that is cured as one is equipped with in high-pressure modular 13 inside, and high-pressure modular 13 is fixed in housing 10 inner chambers.High-pressure modular 13 is connected with 6 corona terminals 14, and corona terminal 14 rectangular distributions also are fixed on the cross wall in the housing 10.Corona terminal 14 is made up of polytetrafluoroethylene pedestal and corona discharge needle.The flame-proof type controller is used to control the positive draft explosion prevention function that the ion consumer appliance is eliminated static and realized total system.
In order to remove the foreign material in the housing 10, keep clear, on the wall of housing 10, have a lancing door 15, be fixed with cover plate.Can open cover plate, the tamper in the housing 10 is removed.
Connect 220V AC power cord 1, connect source of the gas, configure atmosphere gas pressure: between 0.3～0.6MPa.Promptly be eliminated static behind the powder material process flange form consumer appliance, the electrical efficiency that disappears is greater than 90%.
This full automaticity moulding mixture storehouse powder electrostatic cancellation element, beginning in 2004 is on-the-spot on probation at Daqing petrochemical company polyethylene powder material warehouse.Detect through the scene, the electrical efficiency that disappears is greater than 90%.
By test data as can be seen, the electric effect that disappears of this electric equipment that disappears is obvious.The static number list of polyolefin powder material warehouse before and after the elimination static of 5 tests is compared, see Table 1.
Table 1 powder electrostatic is eliminated the numerical value comparison sheet
| The preceding specific charge (μ C/kg) of the electricity that disappears | 4.28 | 4.43 | 4.40 | 4.44 | 4.35 |
| Electricity back specific charge (μ C/kg) disappears | 0.09 | 0.20 | 0.11 | 0.12 | 0.17 |
Claims (5)
1, a kind of full automaticity moulding mixture storehouse powder material static eraser, form by flame-proof type controller and flange form consumer appliance two parts, the structure of flame-proof type controller is: in Flameproof box shell (3) first chambers air switch (7) is housed, source switch (4) and Programmable Logic Controller (5), it is characterized in that: on Flameproof box shell (3), be fixed with pipe joint, be fixed with pressure sensor (2) in the inner of pipe joint, be connected with air pressure signal pipe (12) in the outer end of pipe joint, at Flameproof box shell (3) second chamber internal fixation connection terminal (6) is arranged, Flameproof box shell (3) outside has signal cable (8) to be connected with connection terminal (6); The structure of flange form consumer appliance is: at the two ends of housing (10) butt flange (11) is arranged, the other end of air pressure signal pipe (12) is connected housing (10) top, can give pressure sensor (2) pressure signal transmission in the housing (10) by air pressure signal pipe (12), the other end of signal cable (8) connects high-pressure modular (13) by the binding post on housing (10) top, can provide the control power supply for housing (10) in-to-in high-pressure modular (13) by signal cable (8), also be connected with instrument airduct (9) on housing (10) top, by instrument airduct (9) industrial wind is sent into housing (10), be fixed with high-pressure modular (13) at housing (10) inner chamber, high-pressure modular (13) connects corona terminal (14), and corona terminal (14) is fixed on the interior cross wall of housing (10).
2, full automaticity moulding mixture according to claim 1 storehouse powder material static eraser, it is characterized in that: a flame-proof type controller is connected with 1～8 flange form consumer appliance by signal cable (8) and air pressure signal pipe (12).
3, full automaticity moulding mixture according to claim 1 and 2 storehouse powder material static eraser is characterized in that: each high-pressure modular (13) connects 6-12 corona terminal (14).
4, full automaticity moulding mixture according to claim 1 and 2 storehouse powder material static eraser, it is characterized in that: the flame-proof type controller is installed on the powder material warehouse upper brace.
5, full automaticity moulding mixture according to claim 1 and 2 storehouse powder material static eraser, it is characterized in that: the flame-proof type controller is installed in the fitting operation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201233884U CN201309711Y (en) | 2008-11-07 | 2008-11-07 | Powdery material electrostatic elimination device of fully-automatic hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201233884U CN201309711Y (en) | 2008-11-07 | 2008-11-07 | Powdery material electrostatic elimination device of fully-automatic hopper |
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| Publication Number | Publication Date |
|---|---|
| CN201309711Y true CN201309711Y (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201233884U Expired - Lifetime CN201309711Y (en) | 2008-11-07 | 2008-11-07 | Powdery material electrostatic elimination device of fully-automatic hopper |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306471A (en) * | 2015-12-25 | 2017-10-31 | 北京东方计量测试研究所 | A kind of safety-type powder electrostatic arrester |
| CN107413508A (en) * | 2017-09-12 | 2017-12-01 | 天津水泥工业设计研究院有限公司 | It is a kind of to be used for dry method grinding and select the electrostatic during powder actively to neutralize device |
| 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 |
| CN110018366A (en) * | 2018-01-09 | 2019-07-16 | 中国石油化工股份有限公司 | Petrochemical equipment powder electrostatic harm simulation and preventing control method |
| CN110386374A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | For monitoring and controlling the method and system of polyolefin bunker powder electrostatic |
| CN110592586A (en) * | 2019-10-29 | 2019-12-20 | 岗春激光科技（江苏）有限公司 | Powder feeding device |
-
2008
- 2008-11-07 CN CNU2008201233884U patent/CN201309711Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306471A (en) * | 2015-12-25 | 2017-10-31 | 北京东方计量测试研究所 | A kind of safety-type powder electrostatic arrester |
| CN107413508A (en) * | 2017-09-12 | 2017-12-01 | 天津水泥工业设计研究院有限公司 | It is a kind of to be used for dry method grinding and select the electrostatic during powder actively to neutralize device |
| CN110018366A (en) * | 2018-01-09 | 2019-07-16 | 中国石油化工股份有限公司 | Petrochemical equipment powder electrostatic harm simulation and preventing control method |
| 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 |
| CN110386374A (en) * | 2018-04-19 | 2019-10-29 | 中国石油化工股份有限公司 | For monitoring and controlling the method and system of polyolefin bunker powder electrostatic |
| CN110386374B (en) * | 2018-04-19 | 2021-04-13 | 中国石油化工股份有限公司 | Method and system for monitoring and controlling static electricity of polyolefin bin powder |
| CN110592586A (en) * | 2019-10-29 | 2019-12-20 | 岗春激光科技（江苏）有限公司 | Powder feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |