CN1939593B - Mobile electrode of electric dust collector - Google Patents
Mobile electrode of electric dust collector Download PDFInfo
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- CN1939593B CN1939593B CN 200610005197 CN200610005197A CN1939593B CN 1939593 B CN1939593 B CN 1939593B CN 200610005197 CN200610005197 CN 200610005197 CN 200610005197 A CN200610005197 A CN 200610005197A CN 1939593 B CN1939593 B CN 1939593B
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Abstract
The present invention is directed to prevent the stretching caused by the wear of the annular restis for suspending a plurality of dust collecting electrode plates and remain the long life of the annular restis. A mobile electrode(18)of an electric dust collector comprises a pair of annular restis which can be rotatablely supported on a pair of driving wheels(20)respectively, and a plurality of dust collecting electrode plates(26)which are suspended on the pair of annular restis and rotatablely moves surrounding the discharge electrode along a given direction. The mobile electrode is characterized in that the annular restis is made of flexible annular metal wire(24). A plurality of coupling segment parts are desired to be formed around the circumferential of the driving wheels(20)at equal pitch, and coupling blocks which coupling with the coupling segment parts are arranged on the annular metal wire(24)at equal pitch.
Description
Technical field
The present invention relates to a kind of traveling electrode of electric dust collector, especially relate to a kind of traveling electrode that makes a plurality of control of dust pole plates of suspension on annular restis (No end rope bar body) rotate the electric dust collector that moves around discharge electrode.
Background technology
For the boiler exhaust of removing heat power station or the dust in the various stove exhaust, use and open disclosed mobile electrode type electric dust collector in the 2001-246284 communique just like the spy.Fig. 8 is the stereogram of schematic construction that expression is used for the traveling electrode of this mobile electrode type electric dust collector.Be disposed at a pair of drive sprocket on top (sprocket wheel) 1 and be disposed between a pair of driven voller 2 of bottom, as annular restis a pair of ring chain 3,3 is rotatably being opened and established.Rectangle control of dust pole plate 4 is linked by the pars intermedia 5 of its lateral margin and is installed between a pair of ring chain 3,3, along chain rotate direction be equipped with arranging a plurality of control of dust pole plates 4,4 ....The axle 6 of drive sprocket 1 is by not shown driving mechanism rotation, this rotation of 6 is passed to a pair of ring chain 3,3 that is engaged on the drive sprocket 1, form on the whole loop a plurality of control of dust pole plates 4,4 ... rotate around not shown discharge electrode and to move.
Fig. 9 is the allocation plan of traveling electrode 10 bottoms, and the control of dust pole plate 4 that suspension also descends on ring chain 3 turns at the position of driven voller 2 U-shaped, transfers rising to.On the position of the control of dust pole plate 4 that this has just risen in clamping, on the path of each traveling electrode 10 (lane), dispose rotary brush 7.Above rotary brush 7, set discharge electrode 8.During transversely the moving along the vertical direction of discharge electrode 8, the dust in the exhaust is owing to from the corona discharge of discharge electrode 8 and charged, become trapped in the surface of each control of dust pole plate 4 at control of dust pole plate 4,4.When each control of dust pole plate 4 when disposing the position of rotary brush 7, be attached to control of dust pole plate 4 lip-deep dusts and be rotated brush 7 and peel off, remove.
Promptly, in this mobile electrode type electric dust collector, below operation is repeated to carry out: during moving in the control of dust space of each control of dust pole plate 4 above discharge electrode 8 places, dust become trapped in the surface of each control of dust pole plate 4, this control of dust pole plate 4 descends and turns at the position of driven voller 2 U-shaped, transfer to when rising, peel off, remove and be attached to control of dust pole plate 4 lip-deep dusts by rotary brush 7.According to this structure, when control of dust pole plate 4 passes through rotary brush 7, be attached to control of dust pole plate 4 lip-deep dusts and all positively removed, the cleannes on control of dust pole plate 4 surfaces are recovered.Therefore, can keep very thinly all the time with being captured and being piled up in control of dust pole plate 4 lip-deep staubosphere thickness.
The influence of the resistivity of the dust that the dust collecting performance of electric dust collector is trapped is big.Especially the resistivity of dust is up to 10
12When Ω cm is above, if being piled up in the lip-deep staubosphere thickness of control of dust pole plate reaches more than the setting, contrary ionization phenomena can take place then, dust collecting performance sharply descends.The mobile electrode type electric dust collector is owing to keeping very thinly all the time with being captured and being piled up in control of dust pole plate 4 lip-deep staubosphere thickness as mentioned above, so be difficult to produce contrary ionization phenomena.Therefore, this mobile electrode type electric dust collector is mainly used in the exhaust that comprises the high impedance dust.
But above-mentioned traveling electrode 10 is used conductive material in ring chain 3, makes from the electric current of each control of dust pole plate 4 through drive sprocket 1 or driven voller 2 from ring chain 3 ground connection.Therefore, the same with each control of dust pole plate 4, on ring chain 3, be attached with dust.The dust that is attached on this ring chain 3 enters into horizontal chain link (link) 3a of structure ring chain 3 shown in Figure 10 and the contact site 3c of vertical chain link 3b.When ring chain 3 passes through drive sprocket 1 or driven voller 2, because contact site 3c slip, so under the effect of dust in invading this contact site 3c, the contact surface abrasion of horizontal chain link 3a and vertical chain link 3b gets soon.If long-time the continuation worn and torn, then ring chain 3 stretches gradually, and it is big that pitch P becomes.The shortening in the stretching of ring chain 3 and chain life-span has direct correlation.In addition, because pitch P becomes big, there is the unsettled shortcoming that causes turning round in the engagement variation of ring chain 3 and drive sprocket 1.
Summary of the invention
The objective of the invention is to solve the shortcoming of above-mentioned prior art, a kind of traveling electrode of electric dust collector is provided, the stretching that its wearing and tearing that prevent to be used for the annular restis of a plurality of control of dust pole plates of suspension cause keeps this annular restis long-life, does not cause running unstable simultaneously.
To achieve these goals, the traveling electrode of electric dust collector of the present invention has annular restis and a plurality of control of dust pole plates of suspension on described annular restis that rotatably supported by driving wheel, described a plurality of control of dust pole plate rotates around discharge electrode along prescribed direction and moves, and it is characterized in that: the annular restis of the described control of dust pole plate of suspension is to form by having flexible annular metal cord.
Expect its structure for being formed with a plurality of engaging section portion in the pitches such as periphery of described driving wheel, be equipped with in the first-class pitch of described annular metal cord and be sticked in also trailed clamping block of described engaging section portion.And in the traveling electrode of said structure, expectation is used for described control of dust pole plate suspension is arranged on clamping block on the described annular metal cord in the sprung parts double as on the described annular metal cord.In addition, it also can form described driving wheel is made as ratchet, and the clamping block that is sticked in the annular metal cord on the engaging pawl of this ratchet is made as the structure of cylinder, and can also form clamping block is spheroid, the structure that engaging section portion is formed by the hemisphere face recess.In addition, annular metal cord is preferably the cable wire of twisting with the fingers strand, preferably with described clamping block solder joints on annular metal cord and structure.
According to the traveling electrode of electric dust collector of the present invention,,, can keep the annular restis long-life so provide protection against wear the stretching that causes because annular restis is made as flexible annular metal cord.In addition, the periphery of driving wheel with etc. when pitch forms a plurality of engaging section portion, make the described engaging section of the clamping block cooperation portion that is sticked in the engaging section portion with etc. pitch be installed on the annular metal cord.According to this structure, by making the engagement of engaging section portion and clamping block, the revolving force of driving wheel positively is delivered to support component through clamping block, and is positively drawn.Therefore, can make the control of dust pole plate of suspension on annular metal cord stablize, positively rotate and move.In addition, even if clamping block weares and teares because of long-time running, owing to the pitch between clamping block does not change, so also can continue steady running.
Description of drawings
Fig. 1 is the stereogram of embodiment of the traveling electrode of expression electric dust collector of the present invention;
Fig. 2 is the front elevation of the primary structure of expression mobile electrode type electric dust collector;
Fig. 3 is the front elevation of the thin portion structure of expression driving wheel 20 and annular metal cord 24;
Fig. 4 is the figure of the installment state of expression clamping block 38, and (1) is stereogram, and (2) are profile;
Fig. 5 is the figure of the installment state of expression sprung parts 28, and (1) is stereogram, and (2) are profile;
Fig. 6 is near the front elevation of the running-active status the expression driven voller 22;
Fig. 7 is the curve map of the extensibility predicted value of comparison annular restis;
Fig. 8 is the stereogram of schematic construction of the traveling electrode of expression prior art;
Fig. 9 is the bottom allocation plan of the traveling electrode of prior art;
Figure 10 is the key diagram of the primary structure of expression ring chain.
The specific embodiment
Fig. 1 is the stereogram of embodiment of the traveling electrode of expression electric dust collector of the present invention.In the pair of driving wheels 20 that is disposed at top and be disposed between a pair of driven voller 22 of bottom, rotatably open and establish a pair of flexible circular metal wire 24,24.Annular metal cord 24 can be by monofilament or multiply metal wire structure, but the viewpoint on the intensity, is contemplated to be the wire rope structure of twisting with the fingers strand.A plurality of control of dust pole plates 26,26 ... engage with sprung parts 28 by centre position and to be suspended on a pair of annular metal cord 24,24 at its width.The axle 30 of driving wheel 20 is by not shown driving mechanism rotation, follow the rotation of driving wheels 20 of these 30 rotations to be passed to a pair of annular metal cord 24,24, form on the whole loop a plurality of control of dust pole plates 26,26 ... rotate around not shown discharge electrode and to move.
Fig. 2 is the front elevation of primary structure of the mobile electrode type electric dust collector with traveling electrode 18 of the above-mentioned formation of expression.In the control of dust space, dispose a plurality of discharge electrodes 32 side by side with predetermined distance, these discharge electrodes 32 are disposed a plurality of traveling electrodes 18 every one with surrounding.The control of dust pole plate 26 that suspension also descends on annular metal cord 24 turns at the position of driven voller 22 U-shaped, transfers rising to.On the position of the control of dust pole plate 26 that this has just risen in clamping, on the path of each traveling electrode 18, dispose rotary brush 34.
The processed gas that comprises the high impedance dust flows along the direction perpendicular to paper.In the control of dust space of control of dust pole plate 26,26 above rotary brush 34, during transversely the moving along the vertical direction of discharge electrode 32, the dust in processed is owing to from the corona discharge of discharge electrode 32 and charged, become trapped in the surface of each control of dust pole plate 26.When each control of dust pole plate 26 when disposing the position of rotary brush 34, be attached to control of dust pole plate 26 lip-deep dusts and be rotated brush 34 and peel off, remove.
Promptly, in this mobile electrode type electric dust collector, below operation is repeated to carry out: during moving in the control of dust space of each control of dust pole plate 26 above discharge electrode 32 places, dust become trapped in the surface of each control of dust pole plate 26, this control of dust pole plate 26 descends and turns at the position of driven voller 22 U-shaped, transfer to when rising, peel off, remove and be attached to control of dust pole plate 26 lip-deep dusts by rotary brush 34.
Fig. 3 is the front elevation of the thin portion structure of expression driving wheel 20 and annular metal cord 24.This driving wheel 20 is made of ratchet, is the pawl structure of can unidirectional rotation transmitting.That is, in the periphery of driving wheel 20, with etc. pitch p
0Formation has the jut 36 of 8 claw-like engaging section 36a of portion.In addition, on annular metal cord 24, be sticked in clamping block 38 on the described engaging section 36a of portion cooperate with jut 36 also with etc. pitch p
0Be mounted.Fig. 4 is the figure of expression clamping block 38 with respect to the installment state of annular metal cord 24, and Fig. 4 (1) is a stereogram, and Fig. 4 (2) is a profile.Clamping block 38 is by semi-cylindrical parts 38a, the 38b structure of splitting.Split parts 38a, 38b clamping annular metal cord 24 with these, when being welded to each other, shown in Fig. 4 (2), with split parts 38a, 38b be welded in up and down and annular metal cord 24 between.
Fig. 5 is the figure that expression is used for control of dust pole plate 26 is suspended in the installment state of the sprung parts 28 on the annular metal cord 24, and Fig. 5 (1) is a stereogram, and Fig. 5 (2) is a profile.Sprung parts 28 by semi-cylindrical split parts 28a and cuboid split parts 28b structure.Split parts 28a, 28b clamping annular metal cord 24 with these, when being welded to each other, shown in Fig. 5 (2), with split parts 28a, 28b be welded in up and down and annular metal cord 24 between.The side opposite with annular metal cord 24 sides of splitting parts 28b is made as the installed surface 28c of control of dust pole plate 26.Be welded on this installed surface 28c by pars intermedia, control of dust pole plate 26 is suspended on the annular metal cord 24 width of control of dust pole plate 26.Make the interval and described pitch P of the clamping block 38 of this sprung parts 28 and front and back
0Equate that sprung parts 28 is also used as clamping block 38.
Under state shown in Figure 3,, then be arranged in the engaging section 36a of portion above the jut 36 that driving wheel 20 forms and the following engagement of clamping block 38 shown in arrow Y if driving wheel 20 turns left.Therefore, the revolving force of driving wheel 20 positively is delivered to clamping block 38 via the jut 36 with engaging section 36a of portion, and the annular metal cord 24 of suspension control of dust pole plate 26 is by positively with per 1 pitch P
0Promote.
Fig. 7 is the curve map of the extensibility predicted value of comparison annular restis.Among the figure, curve a represents the situation of the annular metal cord 24 of present embodiment, and curve b represents the situation of the ring chain of prior art.In the annular metal cord 24 of curve a, there is the tendency that stretches slightly at start of run, and after this do not stretch substantially.On the other hand, in the ring chain of the prior art of curve b, stretch and roughly carry out with the duration of runs with being directly proportional, the duration of runs, extensibility reached 2% when being 100,000 hours.
In addition, clamping block 38 or sprung parts 28 use the conductive material of carbon steel class on intensity or the viewpoint of economy, also are attached with dust on these parts.And when annular metal cord 24 passed through driving wheel 20 or driven voller 22, these parts contacted with driving wheel 20 or driven voller 22, and accompanying dust has been accelerated the wearing and tearing of clamping block 38 or sprung parts 28.But, even if clamping block 38 or sprung parts 28 have some wearing and tearing, owing to the pitch P of 38 of clamping blocks shown in Figure 3
0Do not change, so can continue steady running yet.
As mentioned above, according to the traveling electrode of the electric dust collector of present embodiment,,, can keep the annular restis long-life so provide protection against wear the stretching that causes because annular restis is made as flexible annular metal cord 24.In addition, the periphery of driving wheel 20 with etc. when pitch forms the jut 36 with a plurality of engaging section 36a of portion, the clamping block 38 engagement protrusion portions 36 that the 36a of the section of making and engage portion engages and with etc. pitch be installed on the annular metal cord 24.According to this structure, by making the jut 36 and clamping block 38 engagements with engaging section 36a of portion, the revolving force of driving wheel 20 is positively passed to clamping block 38 via the engaging section 36a of portion.Therefore, can make the control of dust pole plate 26 of suspension on annular metal cord 24 stablize, positively rotate and move.In addition, even if clamping block 38 weares and teares because of long-time running, because engaging lacks 38 pitch P
0Do not change, so can continue steady running yet.
In the above-described embodiment, illustrated that the engaging section portion that is formed in the driving wheel is 8 a situation.But,, then do not limit especially as long as the engaging section portion quantity that is formed in the driving wheel of the present invention is a plurality of.In the practicality, be desirably in 6-16 the interior selected jut of scope with engaging section portion.In addition, means on the annular metal cord that support component or sprung parts are fixed on can be made as and be threaded to replace welding.
In addition, the example by the ratchet structure driving wheel has been described in the above-described embodiment, but its structure also can be the wheel outer peripheral face with etc. pitch form engaging section portion by the hemisphere face recess structure, on the other hand, the annular metal cord side with etc. pitch the spheroid piece is installed.
Claims (6)
1. the traveling electrode of an electric dust collector, have the annular restis and a plurality of control of dust pole plates of suspension on described annular restis that rotatably support by driving wheel, described a plurality of control of dust pole plate rotates around discharge electrode along prescribed direction and moves, and it is characterized in that:
Described driving wheel have can be unidirectional the pawl structure transmitted of rotation,
The annular restis of the described control of dust pole plate of suspension is to form by having flexible annular metal cord,
Be formed with a plurality of engaging section portion in the pitches such as periphery of described driving wheel, be equipped with in the first-class pitch of described annular metal cord and be sticked in described engaging section portion and trailed clamping block.
2. the traveling electrode of electric dust collector according to claim 1 is characterized in that:
Be used for described control of dust pole plate suspension is arranged on clamping block on the described annular metal cord in the sprung parts double as on the described annular metal cord.
3. the traveling electrode of electric dust collector according to claim 1 is characterized in that:
Described driving wheel is made as ratchet, the described described clamping block that engages the annular metal cord in the section portion of the claw-like that is sticked in this ratchet is made as cylinder.
4. the traveling electrode of electric dust collector according to claim 1 is characterized in that:
Clamping block is a spheroid, and engaging section portion is formed by the hemisphere face recess.
5. the traveling electrode of electric dust collector according to claim 1 is characterized in that:
Annular metal cord is for twisting with the fingers the cable wire of thigh.
6. the traveling electrode of electric dust collector according to claim 1 is characterized in that:
With described clamping block solder joints on annular metal cord and constitute.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP283714/05 | 2005-09-29 | ||
| JP2005283714 | 2005-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1939593A CN1939593A (en) | 2007-04-04 |
| CN1939593B true CN1939593B (en) | 2010-07-07 |
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ID=37958275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610005197 Active CN1939593B (en) | 2005-09-29 | 2006-01-23 | Mobile electrode of electric dust collector |
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| Country | Link |
|---|---|
| CN (1) | CN1939593B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5018709B2 (en) * | 2008-09-11 | 2012-09-05 | 株式会社日立プラントテクノロジー | Moving electrode type electrostatic precipitator and method for carrying in member of moving electrode type electrostatic precipitator |
| CN101983775B (en) * | 2010-11-08 | 2012-12-12 | 河南中材环保有限公司 | Electric dust collector, deposition polar plate of anode compound electrode and manufacturing method thereof |
| CN104355049A (en) * | 2014-10-29 | 2015-02-18 | 王博 | Dust collecting plate guide device for electrode type electric dust collector |
| CN104324811A (en) * | 2014-10-29 | 2015-02-04 | 王博 | Traction device used for dust collection plates of movable electrode type dust collector |
-
2006
- 2006-01-23 CN CN 200610005197 patent/CN1939593B/en active Active
Non-Patent Citations (3)
| Title |
|---|
| JP昭55-106560A 1980.08.15 |
| JP昭62-49958A 1987.03.04 |
| JP特开平9-276736A 1997.10.28 |
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| Publication number | Publication date |
|---|---|
| CN1939593A (en) | 2007-04-04 |
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Address after: Kanagawa Prefecture, Japan Patentee after: Mitsubishi power environmental protection Co., Ltd Address before: Kanagawa Prefecture, Japan Patentee before: MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS, Ltd. |