CN104344743B - A kind of insulated electro insulator for glass furnace hot electrostatic precipitator - Google Patents
A kind of insulated electro insulator for glass furnace hot electrostatic precipitator Download PDFInfo
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- CN104344743B CN104344743B CN201410616174.0A CN201410616174A CN104344743B CN 104344743 B CN104344743 B CN 104344743B CN 201410616174 A CN201410616174 A CN 201410616174A CN 104344743 B CN104344743 B CN 104344743B
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Abstract
The invention discloses a kind of insulated electro insulator for glass furnace hot electrostatic precipitator, belong to field of environment protection, solve the problem of the easy dust stratification of glass furnace electric cleaner insulator, comprise insulator incubator and be located at the insulated porcelain sleeve in insulator incubator, insulated porcelain sleeve top is provided with support cover plate, inside be provided with negative electrode suspension rod, negative electrode suspension rod is through supporting cover plate, support cover plate and be provided with some purge holes and the guide vane identical with purge hole quantity, purge hole is distributed in as axle along annular and supports on cover plate taking the axis of negative electrode suspension rod, guide vane is located between adjacent two purge holes, spacing between each adjacent two guide vanes is identical, support on cover plate and be also provided with some auxiliary air vents, auxiliary air vent is distributed in as axle along annular and supports on cover plate taking the axis of negative electrode suspension rod, and the distance of auxiliary air vent and negative electrode suspension rod is greater than the distance of purge hole and negative electrode suspension rod, the lower sidewall of insulator incubator is provided with air admission hole. can effectively remove the dust stratification of insulated porcelain sleeve.
Description
Technical field
The present invention relates to field of environment protection, particularly a kind of insulation for glass furnace hot electrostatic precipitatorElectroceramics cover.
Background technology
At present, glass furnace adopts the conducts such as natural gas, coal gas, petroleum coke, coal tar, heavy oil conventionallyFuel. In the time adopting natural gas, coal gas, kind of dust is lower, is about 200～350mg/Nm3;But it is still very general in glass enterprise, to mix burning petroleum coke powder, coal tar, heavy oil etc., and now dust concentration is about600～900mg/Nm3。
Taking petroleum coke powder or natural gas as the dust that the glass furnace of fuel produces afterwards in burning thinner, and when withWhen natural gas is fuel, flue gas moisture content is higher, and during taking petroleum coke powder as fuel, dust viscosity is larger, inhalesMoist strong. Hot electrostatic precipitator in glass furnace dedusting application process, low melting point, oiliness, thinner powderDirt can be adsorbed on insulator inwall, occurs negative electrode suspension rod degree of depth fouling phenomenon. There is the degree of depth in insulated porcelain sleeve inwallAfter dust stratification, reduced the distance between negative electrode suspension rod and insulator inwall, it is anti-that the shortening of distance can increase insulator bottomThe potential difference of dust hood inside and outside wall dust layer can produce creepage phenomenon in the time that potential difference increases to certain value, reducesSecondary voltage and electric current, dust collector efficiency can decline; Even insulator inwall is adhered to rear easy generation spark dischargeBurst and cause insulator, affect the operation of whole dust pelletizing system. Breaking of insulator not only increased replacing, operationMaintenance cost, has also affected the normal operation of glass furnace. At present, for avoiding occurring above situation, someProducer adopts certain online ash removal mode at dust cover top winding-up compressed air deashing, or changes dust coverForm utilization enters the swirling eddy deashing in dust cover, or directly shuts down and carry out artificial deashing replacing insulator.
Because dust viscosity in glass furnace is stronger, easily stick on electroceramics cover inside or negative electrode suspension rod, existingPurge mode effect be not very desirable. In the time adopting compressed air deashing, because combusting heavy oil producesRaw dust adhesion is very strong, not obvious electroceramics cover, negative electrode suspension rod or the dust cover of can causing on the contrary of ash-removal effectBottom dust stratification situation is more serious, sticks to the dust meeting fouling on inwall, and dust layer thickness from top to bottom canIncrease gradually, be difficult to Automatic-falling. Insulator insulating properties can significantly reduce, and easily cause high pressure creepage phenomenon,Reduce efficiency of dust collection, even can cause insulator Yin Gaowen and hot tearing. Enter the swirling eddy of dust cover inside,Its ash-removal effect is also undesirable, cannot reach the effect of deashing. As there is degree of depth dust stratification, can cause secondaryVoltage and current reduces, and affects the efficiency of electric cleaner. Because glass furnace comparision of production is continuous, shut down intoPedestrian's work deashing cost is higher, and existing dust cover structure is generally comparatively complicated, and installation and maintenance are changed more difficult,The frequent insulator cost of changing also can increase.
Summary of the invention
The object that the present invention will reach is to provide a kind of insulation electroceramics for glass furnace hot electrostatic precipitatorOverlap, can effectively remove the dust stratification of insulated porcelain sleeve.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of for glass furnace high-temperature electricThe insulated electro insulator of deduster, comprises insulator incubator and is located at the insulated porcelain sleeve in insulator incubator, described inInsulated porcelain sleeve top is provided with support cover plate, is provided with negative electrode suspension rod in insulated porcelain sleeve, and negative electrode suspension rod is through supporting coverPlate, supports cover plate and is provided with some purge holes and the guide vane identical with purge hole quantity, and purge hole is with the moonTo be axle be distributed in and support on cover plate along annular the axis of utmost point suspension rod, guide vane be located at adjacent two purge holes itBetween, the spacing between each adjacent two guide vanes is identical; Support on cover plate and be also provided with some auxiliary air vents,Auxiliary air vent is distributed in as axle along annular and supports on cover plate taking the axis of negative electrode suspension rod, and auxiliary air vent and negative electrodeThe distance of suspension rod is greater than the distance of purge hole and negative electrode suspension rod, and the lower sidewall of insulator incubator is provided with air admission hole.
Be connected with purge hole by external pipe, to insulated porcelain sleeve internal feed hot-air blowing, hot blast is through water conservancy diversionBlade guiding, air quantity is uniformly distributed, thereby insulated porcelain sleeve inwall is efficiently purged equably, prevents absolutelyEdge insulator inner surface dewfall and laying dust. By the air admission hole input air-flow of insulator incubator bottom, negative at electric fieldUnder the effect of pressing, hot blast flows through from insulated porcelain sleeve surface after entering insulator incubator inside, then by auxiliaryPore enters insulated porcelain sleeve inside, and the inner surface of the insulated porcelain sleeve of flowing through plays clean effect again.
Further, described negative electrode suspension rod is provided with some joint cage bone protective sleeves, and cage bone protective sleeve comprises up and downEach a slice endless metal circle and the some metallic rod that are connected upper and lower quoit, metallic rod annular spread is each adjacentThe spacing of two metallic rod is identical, and cage bone protective sleeve is placed on negative electrode suspension rod surface, and quoit and negative electrode suspension rod are solidFixed. Two quoits and some metallic rod form cage shape, utilize galvanomagnetic-effect to protect by target suspension rod,Shielding dust effect, reduces the probability of the adsorbing powder dust fine, viscosity is larger on negative electrode suspension rod, has avoidedThe distortion of space charge to electric field and improve Electric Field Distribution. Main Function is the motion that has stoped space charge,Improve breakdown voltage.
Further, described metallic rod is provided with the six roots of sensation. The very few metallic rod that arranges can not play good shielding effectReally, metallic rod being too much set causes cost to rise.
Further, described cage bone protective sleeve single-unit length is 100mm-250mm.
Further, described purge hole is provided with 8-12. Very few purge hole can cause intake deficiency,Too much purge hole can cause wind-force dispersion, wind direction to be difficult to control.
Further, described auxiliary air vent is provided with 6-8. Very few auxiliary air vent can cause intake notFoot, too much auxiliary air vent can cause wind-force dispersion, wind direction to be difficult to control.
Adopt after technique scheme, tool of the present invention has the following advantages:
Dust cover top blind flange has been increased purge hole and guide vane by the present invention, and hot blast self-heat conserving box top is enteredEnter insulator inside, be uniformly distributed through guide vane, clean dust along insulator inwall, reduced and adhered toFine on insulator inwall, the dust that oiliness is larger. Enter the hot blast pair in insulator by hot-air blowing holeCathodic protection cage bone has played purging effect, has reduced the dust being attached on protection cage bone. Be conducive to changeThe distribution of dust cover internal electric field, the Electric Field Distribution at this place is more even, has improved average voltage breakdown, subtractsLack the generation of creepage phenomenon, avoided insulator Yin Gaowen hot tearing.
Adsorbing powder dust can the protective effect of target suspension rod on cathode rod protection cage bone and the effect of shielding dust,Reduced the adsorbing powder dust fine, viscosity is larger on negative electrode suspension rod, the space charge of avoiding knowing clearly is to electric fieldDistort and improve Electric Field Distribution, Main Function is the motion that has stoped space charge, has improved breakdown voltage.
This device is applicable to flue-gas temperature and is generally more than 300 DEG C, the glass taking petroleum coke powder, heavy oil etc. as fuelGlass kiln hot electrostatic precipitator, the insulated porcelain sleeve that has reduced electric cleaner is changed, repair and maintenance expense, protectsDemonstrate,prove the overall operation performance of deduster.
This apparatus structure is simple, installs than being easier to, and shuts down maintenance conveniently, and production cost is low.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the schematic diagram of the support cover plate of Fig. 1 embodiment;
Fig. 3 is the schematic diagram of the cage bone protective sleeve of Fig. 1 embodiment.
Detailed description of the invention
Fig. 1-3 are depicted as a kind of embodiment of the present invention.
For an insulated electro insulator for glass furnace hot electrostatic precipitator, comprise insulator incubator 1 and be located atInsulated porcelain sleeve 2 in insulator incubator 1, insulated porcelain sleeve 2 tops are provided with supports cover plate 3, in insulated porcelain sleeve 2Be provided with negative electrode suspension rod 4, negative electrode suspension rod 4 is through supporting cover plate 3, support cover plate 3 be provided with 8 (also passableArrange 9,10,11 or 12, very few purge hole 31 can cause intake deficiency, too muchPurge hole 31 can cause that wind-force disperses, wind direction is difficult to control) purge hole 31 is with identical with purge hole 31 quantityGuide vane 32, purge hole 31 is distributed in as axle along annular and supports on cover plate 3 taking the axis of negative electrode suspension rod 4,Guide vane 32 is located between adjacent two purge holes 31, the spacing between each adjacent two guide vanes 32Identical; Support be also provided with on cover plate 36 (or 7 or 8, very few auxiliary air vent 33 can cause intoDeficiency in draught, too much auxiliary air vent 33 can cause wind-force dispersion, wind direction to be difficult to control) auxiliary air vent 33,Auxiliary air vent 33 is distributed in as axle along annular and supports on cover plate 3 taking the axis of negative electrode suspension rod 4, and auxiliary air vent33 are greater than the distance of purge hole 31 and negative electrode suspension rod 4, the side of insulator incubator 1 with the distance of negative electrode suspension rod 4Wall bottom is provided with air admission hole 11.
Be connected with purge hole 31 by external pipe, to insulated porcelain sleeve 2 internal feed hot-air blowings, hot blast warpGuide vane 32 guides, and air quantity is uniformly distributed, thereby insulated porcelain sleeve 2 inwalls are efficiently purged equably,Prevent insulated porcelain sleeve 2 inner surface dewfall and laying dusts. Air admission hole 11 by insulator incubator 1 bottom is inputted gasStream, under the effect of electric field negative pressure, hot blast flows from insulated porcelain sleeve 2 surfaces after entering insulator incubator 1 insideCross, then enter insulated porcelain sleeve 2 inside by auxiliary air vent 33, the inner surface of the insulated porcelain sleeve 2 of flowing through, risesTo clean again effect.
Negative electrode suspension rod 4 is provided with some joint cage bone protective sleeves 5, and the each joint length of cage bone protective sleeve 5 can be different,Single-unit length is any value in 100mm-250mm, as 100mm, 250mm, 150mm, 200mm etc.,Cage bone protective sleeve 5 comprises each a slice endless metal circle 51 and the six roots of sensation metal that is connected upper and lower quoit 51 up and downBar 52, the very few metallic rod 52 that arranges can not play good shield effectiveness, 52 of metallic rod is too much set and leadsCause cost and rise, metallic rod 52 annular spread, the spacing of each adjacent two metallic rod 52 is identical, and cage bone is protectedSheath 5 is placed on negative electrode suspension rod 4 surfaces, and quoit 51 is fixing with negative electrode suspension rod 4. Two quoits 51 withSome metallic rod 52 form cage shape, utilize galvanomagnetic-effect to protect by target suspension rod 4, shielding dust effectShould, reduce the probability of the adsorbing powder dust fine, viscosity is larger on negative electrode suspension rod 4, the space electricity of avoiding knowing clearlyThe distortion of lotus to electric field and improve Electric Field Distribution. Main Function is the motion that has stoped space charge, has improvedBreakdown voltage.
Dust cover top blind flange has been increased purge hole 31 and guide vane 32 by the present invention, hot blast self-insurance incubator topPortion enters insulator inside, is uniformly distributed through guide vane 32, cleans dust along insulator inwall, reducesBe attached to fine on insulator inwall, the dust that oiliness is larger. Enter in insulator by hot-air blowing hole 31Hot blast target protection cage bone played purging effect, reduced the dust being attached on protection cage bone. HaveBe beneficial to the distribution that changes dust cover internal electric field, the Electric Field Distribution at this place is more even, has improved on average and has puncturedVoltage, has reduced the generation of creepage phenomenon, has avoided insulator Yin Gaowen hot tearing.
Adsorbing powder dust can 4 protective effects of target suspension rod on cathode rod protection cage bone and the effect of shielding dust,Reduced the adsorbing powder dust fine, viscosity is larger on negative electrode suspension rod 4, the space charge of avoiding knowing clearly is to electric fieldDistortion and improve Electric Field Distribution, Main Function is the motion that has stoped space charge, has improved breakdown voltage.
This device is applicable to flue-gas temperature and is generally more than 300 DEG C, the glass taking petroleum coke powder, heavy oil etc. as fuelGlass kiln hot electrostatic precipitator, the insulated porcelain sleeve 2 that has reduced electric cleaner is changed, repair and maintenance expense,Ensure the overall operation performance of deduster.
This apparatus structure is simple, installs than being easier to, and shuts down maintenance conveniently, and production cost is low.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art canMake various changes and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the present inventionThe defined scope of claims.
Claims (5)
1. for an insulated electro insulator for glass furnace hot electrostatic precipitator, comprise insulator incubator (1)Insulated porcelain sleeve (2) with being located in insulator incubator, is characterized in that: described insulated porcelain sleeve top is provided with props upSupport cover plate (3), is provided with negative electrode suspension rod (4) in insulated porcelain sleeve, negative electrode suspension rod is through supporting cover plate, supporting coverPlate is provided with some purge holes (31) and the guide vane (32) identical with purge hole quantity, and purge hole is with the moonTo be axle be distributed in and support on cover plate along annular the axis of utmost point suspension rod, guide vane be located at adjacent two purge holes itBetween, the spacing between each adjacent two guide vanes is identical; Support on cover plate and be also provided with some auxiliary air vents(33), auxiliary air vent is distributed in as axle along annular and supports on cover plate taking the axis of negative electrode suspension rod, and auxiliary air ventBe greater than the distance of purge hole and negative electrode suspension rod with the distance of negative electrode suspension rod, the lower sidewall of insulator incubator is provided withAir admission hole (11); Described negative electrode suspension rod is provided with some joint cage bone protective sleeves (5), and cage bone protective sleeve comprisesLower each a slice endless metal circle (51) and the some metallic rod (52) that are connected upper and lower quoit, metallic rod annularDistribute, the spacing of each adjacent two metallic rod is identical, and cage bone protective sleeve is placed on negative electrode suspension rod surface, quoitFix with negative electrode suspension rod.
2. a kind of insulated electro insulator for glass furnace hot electrostatic precipitator according to claim 1,It is characterized in that: described metallic rod is provided with the six roots of sensation.
3. a kind of insulated electro insulator for glass furnace hot electrostatic precipitator according to claim 2,It is characterized in that: described cage bone protective sleeve single-unit length is 100mm-250mm.
4. according to the arbitrary described a kind of insulation for glass furnace hot electrostatic precipitator of claim 1-3Electroceramics cover, is characterized in that: described purge hole is provided with 8-12.
5. according to the arbitrary described a kind of insulation for glass furnace hot electrostatic precipitator of claim 1-3Electroceramics cover, is characterized in that: described auxiliary air vent is provided with 6-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410616174.0A CN104344743B (en) | 2014-11-05 | 2014-11-05 | A kind of insulated electro insulator for glass furnace hot electrostatic precipitator |
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| CN201410616174.0A CN104344743B (en) | 2014-11-05 | 2014-11-05 | A kind of insulated electro insulator for glass furnace hot electrostatic precipitator |
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| CN104344743A CN104344743A (en) | 2015-02-11 |
| CN104344743B true CN104344743B (en) | 2016-05-04 |
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| CN106926194A (en) * | 2017-04-22 | 2017-07-07 | 新兴铸管股份有限公司 | A kind of device for facilitating electric cleaner to change insulator |
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| JPS5257575A (en) * | 1975-11-05 | 1977-05-12 | Hitachi Plant Eng & Constr Co Ltd | Electric dust collector |
| CN2561510Y (en) * | 2002-08-02 | 2003-07-23 | 浙江菲达环保科技股份有限公司 | Guide hot-air sweepers |
| CN2587518Y (en) * | 2002-10-22 | 2003-11-26 | 谭传德 | Centrifugal electric static dust remover |
| JP2010179246A (en) * | 2009-02-05 | 2010-08-19 | Nippon Steel Corp | Porcelain tube stain preventing apparatus of electric dust collector |
| CN202021089U (en) * | 2011-03-25 | 2011-11-02 | 诸暨菲达越阳环境科技有限公司 | Cathode hanger of electric dust collector |
| CN102614988A (en) * | 2012-03-26 | 2012-08-01 | 兖矿集团有限公司 | Cleaning device for pollution flashover preventive porcelain insulator for electrostatic dust collector and application of cleaning device |
| CN203725266U (en) * | 2013-12-27 | 2014-07-23 | 杭州迪卡能源技术有限公司 | Cathode insulating chamber with steam heating of electric precipitator |
| CN204255118U (en) * | 2014-11-05 | 2015-04-08 | 浙江浙大海元环境科技有限公司 | A kind of insulated electro insulator for glass furnace hot electrostatic precipitator |
-
2014
- 2014-11-05 CN CN201410616174.0A patent/CN104344743B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5257575A (en) * | 1975-11-05 | 1977-05-12 | Hitachi Plant Eng & Constr Co Ltd | Electric dust collector |
| CN2561510Y (en) * | 2002-08-02 | 2003-07-23 | 浙江菲达环保科技股份有限公司 | Guide hot-air sweepers |
| CN2587518Y (en) * | 2002-10-22 | 2003-11-26 | 谭传德 | Centrifugal electric static dust remover |
| JP2010179246A (en) * | 2009-02-05 | 2010-08-19 | Nippon Steel Corp | Porcelain tube stain preventing apparatus of electric dust collector |
| CN202021089U (en) * | 2011-03-25 | 2011-11-02 | 诸暨菲达越阳环境科技有限公司 | Cathode hanger of electric dust collector |
| CN102614988A (en) * | 2012-03-26 | 2012-08-01 | 兖矿集团有限公司 | Cleaning device for pollution flashover preventive porcelain insulator for electrostatic dust collector and application of cleaning device |
| CN203725266U (en) * | 2013-12-27 | 2014-07-23 | 杭州迪卡能源技术有限公司 | Cathode insulating chamber with steam heating of electric precipitator |
| CN204255118U (en) * | 2014-11-05 | 2015-04-08 | 浙江浙大海元环境科技有限公司 | A kind of insulated electro insulator for glass furnace hot electrostatic precipitator |
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