CN201399378Y - Rotating anode type electrostatic precipitator - Google Patents
Rotating anode type electrostatic precipitator Download PDFInfo
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- CN201399378Y CN201399378Y CN200920116221XU CN200920116221U CN201399378Y CN 201399378 Y CN201399378 Y CN 201399378Y CN 200920116221X U CN200920116221X U CN 200920116221XU CN 200920116221 U CN200920116221 U CN 200920116221U CN 201399378 Y CN201399378 Y CN 201399378Y
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- electrostatic precipitator
- rotating anode
- positive plate
- heteropole
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Abstract
The utility model discloses a rotating anode type electrostatic precipitator, which comprises a rotating anode device, cathode lines and a rotating steel brush dust removing mechanism mounted in a non-dust-collecting area. The rotating anode device comprises a driving roll, a driven roll, a transmission sprocket for connecting the driving roll with the driven roll, a transmission chain and an anode plate connected to the transmission chain, and a heteropolar distance between the anode plate and each cathode line is 200mm or 230mm or 260mm. The rotating anode type electrostatic precipitator canmore effectively avoid dust re-entrainment, overcomes affection of high-specific resistance dust onto performance of the conventional electrostatic precipitator, and effectively increases dust removing efficiency. The rotating anode type electrostatic precipitator can select different heteropolar distances according to different application occasions, and takes account of dust removing effect, space occupation and equipment cost. Besides, by using the transmission chain and the transmission sprocket which meet requirements of stressing, materials and weight of the electrostatic precipitator can be reduced greatly, cost and equipment load thereof can be decreased and service life thereof can be prolonged simultaneously.
Description
[technical field]
The utility model relates to electrostatic precipitator, and particularly a kind of rotating anode electrostatic precipitator with the deashing brush belongs to the flue gas ash removal field in the air contaminant treatment.Can be applicable to carrying of newly-built equipment of dust arrester or old equipment imitates in the transformation.
[technical background]
Along with the continuous enhancing of environmental consciousness, the raising day by day of environmental requirement, traditional electrostatic precipitation technology can't meet the demands fully, especially our so special coal-fired big country, it is complicated and changeable that boiler uses coal, so far still to the flying dust of some difficult coals (as high Al
2O
3High SiO
2Low Na
2O) low with the electric cleaner effect; Many flue dust character after desulfurization change and have also brought new problem to electric precipitation; The fly ash resistivity that uses low-sulfur coal or CFBB to bring generally increases, and makes dust collection efficiency decline problem become increasingly conspicuous; In recent years, in order to adapt to new discharge standard, many old units all will face transformation, owing to be subjected to the restriction of conditions such as place, space, utilizing traditional electrostatic precipitation technology means is that aspects such as effect or economy all exist significant limitation.
The external electric cleaner of just researching and developing since the seventies in last century with advanced ash-clearing technology, wherein HIT develops mobile electrode type electrostatic precipitation technology MEEP (Moving Electrode TypeElectrostatic Precipitator) first, and MEEP has adopted traveling electrode structure and rotating brush to peel off the new mode of dust: drive a plurality of dust collecting pole plates by chain-drive mechanism and do gyration; Simultaneously, the traveling electrode system disposition special brush remove dust on the traveling electrode plate.This mobile electrode type electrostatic precipitation technology can keep the permanent cleaning of pole plate, reduces reentrainment of dust, and improves efficiency of dust collection.
But also there are the following problems for this technology:
1, the heteropole distance values between rotatable anode plate and the cathode line is selected single, to the existing problems of selecting for use of the adaptability of dust and power supply.
2, the driven voller two ends bearing fixing of rotatable anode device, the centre-to-centre spacing of driven voller and drive roll can not be adjusted, and between master and slave sprocket wheel and the driving chain wearing and tearing unavoidably cause driving chain loosening, influence the even running of rotatable anode device, thereby influence the efficient stable operation of electric field.
3, rotating brush assembly centre-to-centre spacing can not be adjustable continuously, make the rotating brush assembly all the time the antianode plate suitable deashing force is provided, and sealing can not be guaranteed when rotating brush assembly centre-to-centre spacing was adjusted, can cause that equipment leaks out, and influence the flowability of ash bucket heat-insulating property and dedusting ash, cause ash bucket to block up grey fault easily.
4, generally select the barb type cathode line for use, its electric current distribution is even inadequately, and to the dust characteristic of the final stage electric field of low concentration, fine dust, dust removing effects is relatively poor.
[summary of the invention]
The purpose of this utility model is exactly in order to solve problems of the prior art, proposes a kind of rotating anode electrostatic precipitator with strong points, adaptable.
For achieving the above object, the utility model proposes a kind of rotating anode electrostatic precipitator, comprise rotatable anode device, cathode line and be installed in the non-interior rotation steel brush deashing mechanism in zone that gathers dust, the rotatable anode device comprise drive roll, driven voller, connection drive roll and driven voller drive sprocket, driving chain, be connected the positive plate on the driving chain, the heteropole spacing between described positive plate and the cathode line is 200mm or 230mm or 260mm.
As preferably, the drive sprocket of same phase is equipped with at described drive roll two ends, and the number of teeth of drive sprocket and pitch are selected according to the heteropole distance values: the heteropole spacing is that the number of teeth of 200mm is 12, and pitch is 101.6mm; The heteropole spacing is that the number of teeth of 230mm is 14, and pitch is 101.6mm; The heteropole spacing is that the number of teeth of 260mm is 16, and pitch is 101.6mm; The pitch that described driving chain adopts is identical with the pitch of drive sprocket.
As preferably, described driving chain comprises the bearing pin of inner plate, outer plate, connection inner plate and outer plate, and bearing pin is equipped with inner sleeve and outer sleeve outward, leaves the gap between inner sleeve and the outer sleeve; The profile of tooth and the driving chain of drive sprocket match.
As preferably, described pitch is that the internal segment inner width of the driving chain of 101.6mm is 27mm.
As preferably, the width of described positive plate is selected according to the heteropole distance values: the heteropole spacing is that the positive plate width of 200mm is 600mm; The heteropole spacing is that the positive plate width of 230mm is 700mm; The heteropole spacing is that the positive plate width of 260mm is 800mm.
As preferably, described cathode line is a helix.
As preferably, the heteropole spacing between described positive plate and the cathode line is 200mm.
As preferably, the heteropole spacing between described positive plate and the cathode line is 230mm.
As preferably, the heteropole spacing between described positive plate and the cathode line is 260mm.
The beneficial effect of the utility model patent: the utility model can more effectively be avoided reentrainment of dust, and has overcome the performance impact that high resistivity dust causes the conventional electrostatic deduster, has effectively improved efficiency of dust collection.Different heteropole spacings is selected for use in different application scenarios, taken into account dust removing effects, floor space, equipment cost simultaneously.Driving chain and sprocket wheel can satisfy under the stressed situation, reduce usefulness material and the weight of self greatly, have reduced the load of cost and equipment, have also prolonged service life simultaneously.Have discharge inception voltage height, the uniform characteristics of electric current distribution as non-barb type cathode line-helix, relatively be fit to low concentration, the fine dust of the used electric field treatment of rotary anode formula electric cleaner.
[description of drawings]
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of rotatable anode device in the utility model.
Fig. 3 is drive roll structure and a scheme of installation in the utility model.
Fig. 4-1 is driven voller structure and a scheme of installation in the utility model.
Fig. 4-the 2nd, the A-A cutaway view of Fig. 4-1.
Fig. 4-the 3rd, the vertical view of Fig. 4-2.
Fig. 5 is a rotation steel brush deashing mechanism schematic diagram in the utility model.
Fig. 6-1 is a movable sealing device structural representation in the utility model.
Fig. 6-the 2nd, the B-B cutaway view of Fig. 6-1.
Fig. 7-1 is a driving chain structural representation in the utility model.
Fig. 7-the 2nd, the vertical view of Fig. 7-1.
In the accompanying drawing, 1, the rotatable anode device; 2, cathode line; 3, rotation steel brush deashing mechanism; 4, reducing motor; 5, drive roll; 6, positive plate; 7, driving chain; 8, driven voller; 9, drive sprocket; 10, bearing block; 11, rolling bearing; 12, sleeve; 13, sealing device; 14, sprocket wheel; 15, adjust ring; 16, driving shaft; 17, driven shaft; 18 spacing rings; 19, sliding bearing; 20, movable sealing device; 21, deashing brush assemblies; 22, Hooks coupling universal coupling; 23, gear; 24, pressing plate; 25, hold-down bolt; 26, bearing pin; 27, inner sleeve; 28, outer sleeve; 29, inner plate; 30 outer plates.
[specific embodiment]
As shown in Figure 1, 2, the utility model mainly includes rotatable anode device 1, cathode line 2 and rotation steel brush deashing mechanism 3.Rotatable anode device 1 includes drive roll 5, positive plate 6, driving chain 7 and driven voller 8, and wherein drive roll 5, driving chain 7 and driven voller 8 are formed chain-drive mechanism, and positive plate 6 is fixed on the driving chain 7 of a pair of symmetry by the bolt auxiliary connection.Reductor 4 provides power by the chain transmission to rotatable anode device 1, makes positive plate 6 do the ring-type rotation along with driving chain 7.Reductor 4 rotating speeds are adjustable; Cathode line 2 adopts helix, it is installed in the centre of positive plate 6, apply high voltage electric field between cathode line 2 and the positive plate 6, after dusty gas enters electric field, gas ionization, dust is charged, charged dust is pole plate motion on the sunny side under the electric field force effect and long-pending being attached on the positive plate 6, long-pending have the positive plate 6 of dust along with driving chain 7 is done the ring-type rotation, when amassing with the rotation steel brush deashing mechanism 3 in the positive plate 6 arrival ash buckets of dust, long-pending attached dust is rotated steel brush deashing mechanism 3 and peels off on the positive plate 6, fall into ash bucket, positive plate 6 after the cleaning enters electric field absorption dust again, so moves in circles.Heteropole spacing between positive plate 6 described in the utility model and the cathode line 2 is divided into 200mm or 230mm or three kinds of series of 260mm.
The primary structure of drive roll 5 and mounting means as shown in Figure 3, drive sprocket 9 links to each other with reductor 4 by the chain transmission, two sprocket wheels 14 that phase place is identical are equipped with at the two ends of driving shaft 16, two modes of adjusting ring 15 clampings about the axial location of sprocket wheel 14 adopts; About the axial location of driving shaft 16 adopts two only restrictive axial move be installed in the structure that rolling bearing 11 on the bearing block 10 adds sleeve 12, sealing device 13 does not leak out in order to guarantee the shrouding tapping.The number of teeth of sprocket wheel 14 and pitch can be selected according to heteropole spacing series of values: the 200mm series number of teeth is 12, pitch is 101.6mm; The 230mm series number of teeth is 14, pitch is 101.6mm; The 260mm series number of teeth is 16, pitch is 101.6mm; The pitch that described driving chain 7 adopts is identical with the pitch of drive sprocket.The width L of described positive plate is selected according to the heteropole distance values: the heteropole spacing is that the positive plate width L of 200mm is 600mm; The heteropole spacing is that the positive plate width L of 230mm is 700mm; The heteropole spacing is that the positive plate width L of 260mm is 800mm.
The structure of driven voller 8 and mounting means are shown in Fig. 4-1,4-2,4-3, two sprocket wheels 14 that phase place is identical are equipped with at the two ends of driven shaft 17, about adopting, the axial location of sprocket wheel 14 adjusts the mode that ring 15 clamps for two, two the spacing ring 18 that moves of restrictive axial was spacing only about the axial location of driven shaft 17 adopted, driven voller 8 adopts free suspended structure in vertical direction, guarantees the automatic aligning of driven voller 8 and the auto-tensioning of driving chain 7.
Fig. 5 is the structural representation of rotation steel brush deashing mechanism, rotation steel brush deashing mechanism is arranged in ash bucket (not in effective electric field and flue gas), the deashing brush assemblies 21 of a pair of reverse rotation is peeled off the dust that adheres on the positive plate 6, the direction of rotation of deashing brush assemblies 21 and positive plate 6 is opposite, and the reverse rotation of a pair of deashing brush assemblies 21 realizes by pair of engaged gears 23.The centre-to-centre spacing of a pair of deashing brush assemblies is not unalterable, need to adjust during on-the-spot the installation according to the soft or hard or the degree of wear of deashing brush assemblies 21 bristles, should notice that whole system can run well when install adjusting: the bigger than normal or rear center of wearing and tearing of deashing brush assemblies centre-to-centre spacing is apart from increase, and deashing brush assemblies 21 can not provide enough peel force; Deashing brush assemblies centre-to-centre spacing is less than normal, not only causes deashing brush assemblies 21 distortion easily, and deashing brush assemblies 21 and positive plate 6 wearing and tearing aggravations influences service life of deashing brush assemblies 21 and positive plate 6, again can meaningless increase frictional force, the increase system loading, waste energy.For the centre-to-centre spacing of the deashing brush assemblies 21 of realizing a pair of reverse rotation can be adjusted by actual conditions, the two axial ends of deashing brush assemblies 21 be horizontal bidirectional movably, for the two axial ends horizontal bidirectional that can realize deashing brush assemblies 21 can move, but the fixedly employing horizontal bidirectional move mode of its two axial ends sliding bearing 19, be sliding bearing 19 and its mount pad waist hole connected mode, movable sealing device 20 is adopted at its two ends simultaneously.The reverse rotation of a pair of deashing brush assemblies 21 realizes that by pair of engaged gears 23 during Gear Transmission Design, its centre-to-centre spacing is fixed.During the work of rotation steel brush deashing mechanism, the centre-to-centre spacing of the centre-to-centre spacing of a pair of deashing brush assemblies 21 and pair of engaged gears 23 is different often, in order to give a pair of reverse rotation deashing brush assemblies 21 of different centre-to-centre spacing the transmission of torque of pair of engaged gears 23, need to adopt telescopic Hooks coupling universal coupling 22 between them.
Fig. 6-1,6-2 are the structural representation of movable sealing device 20, the deashing brush assemblies 21 of every pair of reverse rotation is when centre-to-centre spacing is adjusted, turn on hold-down bolt 25, unclamp the pressing plate 24 of movable sealing device 20, make movable sealing device 20 along with deashing brush assemblies 21 moves, after centre-to-centre spacing is adjusted, tighten hold-down bolt 25, make pressing plate 24 press movable sealing device 20, guarantee the sealing that deashing brush assemblies 21 passes through the housing place.
Fig. 7-1,7-2 are the structural representation of driving chain, and pitch is that the internal segment inner width B of the driving chain of 101.6mm is 27mm, be about the GB chain the internal segment inner width 1/2; The external diameter of inner sleeve 27, outer sleeve 28 is about 1/2 of GB diameter; The height H of inner plate 29 and outer plate 30 is about 1/3 of GB height; Consumable accessory bearing pin 26, inner sleeve 27, outer sleeve 28 adopt alloy steel material and strengthen its case hardness; The fit-up gap is bigger slightly than GB.Be in dust-laden, hot environment during driving chain 7 work, can not lubricate by apply oil, suffered load is little and steady, evenly continuous, therefore, is applied in the utility model, its mechanical characteristic is not a major consideration, be suitable for working environment, improve the emphasis that is only the structure consideration service life, therefore, adopt the narrower chain can guaranteed performance, can at utmost reduce cost again.Bearing pin 26, inner sleeve 27, outer sleeve 28 adopt alloy steel material and fit-up gap can adapt to working environment slightly greatly, increase the service life.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any scheme after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (9)
1. rotating anode electrostatic precipitator, it is characterized in that: comprise rotatable anode device, cathode line and be installed in the non-interior rotation steel brush deashing mechanism in zone that gathers dust, the rotatable anode device comprise drive roll, driven voller, connection drive roll and driven voller drive sprocket, driving chain, be connected the positive plate on the driving chain, the heteropole spacing between described positive plate and the cathode line is 200mm or 230mm or 260mm.
2. rotating anode electrostatic precipitator as claimed in claim 1, it is characterized in that: the drive sprocket of same phase is equipped with at described drive roll two ends, the number of teeth of drive sprocket and pitch are selected according to the heteropole distance values: the heteropole spacing is that the number of teeth of 200mm is 12, and pitch is 101.6mm; The heteropole spacing is that the number of teeth of 230mm is 14, and pitch is 101.6mm; The heteropole spacing is that the number of teeth of 260mm is 16, and pitch is 101.6mm; The pitch that described driving chain adopts is identical with the pitch of drive sprocket.
3. rotating anode electrostatic precipitator as claimed in claim 1, it is characterized in that: described driving chain comprises the bearing pin of inner plate, outer plate, connection inner plate and outer plate, bearing pin is equipped with inner sleeve and outer sleeve outward, leaves the gap between inner sleeve and the outer sleeve; The profile of tooth and the driving chain of drive sprocket match.
4. rotating anode electrostatic precipitator as claimed in claim 2 is characterized in that: described pitch is that the internal segment inner width of the driving chain of 101.6mm is 27mm.
5. rotating anode electrostatic precipitator as claimed in claim 1 is characterized in that: the width of described positive plate is selected according to the heteropole distance values: the heteropole spacing is that the positive plate width of 200mm is 600mm; The heteropole spacing is that the positive plate width of 230mm is 700mm; The heteropole spacing is that the positive plate width of 260mm is 800mm.
6. rotating anode electrostatic precipitator as claimed in claim 1 is characterized in that: described cathode line is a helix.
7. rotating anode electrostatic precipitator as claimed in claim 1 is characterized in that: the heteropole spacing between described positive plate and the cathode line is 200mm.
8. rotating anode electrostatic precipitator as claimed in claim 1 is characterized in that: the heteropole spacing between described positive plate and the cathode line is 230mm.
9. rotating anode electrostatic precipitator as claimed in claim 1 is characterized in that: the heteropole spacing between described positive plate and the cathode line is 260mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920116221XU CN201399378Y (en) | 2009-03-20 | 2009-03-20 | Rotating anode type electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920116221XU CN201399378Y (en) | 2009-03-20 | 2009-03-20 | Rotating anode type electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399378Y true CN201399378Y (en) | 2010-02-10 |
Family
ID=41659172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920116221XU Ceased CN201399378Y (en) | 2009-03-20 | 2009-03-20 | Rotating anode type electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201399378Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111917A (en) * | 2018-10-31 | 2020-05-08 | 富鼎电子科技(嘉善)有限公司 | Purifying device |
-
2009
- 2009-03-20 CN CN200920116221XU patent/CN201399378Y/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111917A (en) * | 2018-10-31 | 2020-05-08 | 富鼎电子科技(嘉善)有限公司 | Purifying device |
| CN111111917B (en) * | 2018-10-31 | 2022-05-27 | 富鼎电子科技(嘉善)有限公司 | Purifying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20120428 Decision number of declaring invalidation: 18489 Granted publication date: 20100210 |