CN203140160U - Electrostatic dust collector for purifying flue gas and cathode device for electrostatic dust collector - Google Patents
Electrostatic dust collector for purifying flue gas and cathode device for electrostatic dust collector Download PDFInfo
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- CN203140160U CN203140160U CN 201320132582 CN201320132582U CN203140160U CN 203140160 U CN203140160 U CN 203140160U CN 201320132582 CN201320132582 CN 201320132582 CN 201320132582 U CN201320132582 U CN 201320132582U CN 203140160 U CN203140160 U CN 203140160U
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- dust collector
- steel wire
- electrostatic dust
- wire rope
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Abstract
The utility model discloses an electrostatic dust collector for purifying flue gas and a cathode device for the electrostatic dust collector. The cathode device for the electrostatic dust collector comprises a cathode framework and a corona electrode, wherein a steel wire rope serves as the corona electrode, and two ends of the steel wire rope are fixed on the cathode framework through steel wire rope clips, so that the steel wire rope is straightened and fixed. The electrostatic dust collector disclosed by the utility model comprises the cathode device disclosed by the utility model and an anode plate. The cathode device has the beneficial effects that the connection is stable, the service life is long, the discharge inception effect is good, installation programs are simple, the cost is saved, the working efficiency of the dust collector can be greatly improved, the investment is little, and the maintenance cost in later period is low; and the electrostatic dust collector can be widely applied to the new construction or the optimization and modification of the electrostatic dust collector for flue gas cleaning systems in industries such as iron and steel, aluminum electrolysis and power generation, and is wide in application range.
Description
Technical field
The utility model relates to a kind of electrostatic precipitator, especially a kind of gas cleaning electrostatic precipitator cathode assembly.
Background technology
At present, domestic and international most of aluminium industry baking flue gas cleaning system Typical Disposition are the purification blower fan, high-voltage electrostatic dust separator, and spray cooling tower, devices such as gravitational precipitator have been explained device configuration and baking flue gas as shown in Figure 1 and have been flowed to.
The operation principle of electrostatic precipitator is: contain the waste gas of dust granules, when formed high voltage electric field passed through between the positive plate that is connected to the negative electrode helix of high voltage direct current (claiming corona discharge electrode again) and ground connection, because negative electrode generation corona discharge, gas was ionized.This moment electronegative gas ion, under the effect of electric field force, pole plate motion on the sunny side, dust granules is collided at the volley, then makes the grit lotus with negative electricity, charged back grit is under the effect of electric field force, also anode operation, arrive anode after, emit with electronics, grit then is deposited on the positive plate, and the gas that is purified is discharged outside the dust excluder.At present domestic common electrostatic precipitator pattern can roughly be divided into following a few class: be divided into vertically and horizontal by airflow direction, be divided into dry type wet type etc. by the sweep-out method that precipitates dust on the pole plate.
By the operation principle of electrostatic precipitator as can be known, it is to catch dust by the discharge between the cathode and anode, so the operation characteristic of cathode and anode has determined the quality of high-voltage electrostatic dust separator operation.In actual moving process, the negative electrode helix is very easy to broken string, and the broken string that particularly is in operation will cause the electric field short circuit, is a difficult problem of the normal operation of puzzlement system.Explained the phenomenon of several typical cathode filament fractures among Fig. 1.
The situation analysis of negative electrode helix broken string: the polar curve broken string generally mostly occurs at the top, middle and upper part, bottom or middle and lower part, and position, center broken string is few.When broken string occurs in top or middle and upper part, because the polar curve deadweight can be swung to positive plate by nature, form the inner dead short of electric field.B then forms the inner not exclusively short circuit of electric field when broken string occurs in the bottom.
Eliminate disconnection fault; high-voltage electrostatic dust separator must be out of service; check, change polar curve; according to statistics; each the inside of a week electric field 1 to 2 short circuit phenomenon can occur and be overhauled by forced-stopping machine; the electric cleaner reality time of putting into operation weekly only is about 72 hours, to badly influence the high-voltage electrostatic dust separator service efficiency like this, and antianode roasting clean-up effect can not effectively be brought into play flue gas processing effect.
The utility model content
Not enough frequently in order to overcome existing electrostatic precipitator fault rate height, maintenance, technical problem to be solved in the utility model provides a kind of fault rate low gas cleaning electrostatic precipitator and cathode assembly thereof.
The technical scheme that its technical problem that solves the utility model adopts is: gas cleaning electrostatic precipitator cathode assembly, comprise cathode frame and corona discharge electrode, and described corona discharge electrode adopts steel wire rope.
Further be that described steel wire rope is exceptionally straight fixing, and parallel with positive plate.
The two ends of described steel wire rope are fixed on the cathode frame by wire line shoe.
Described wire line shoe is the stainless steel wire line shoe.
Gas cleaning electrostatic precipitator of the present utility model comprises cathode assembly and positive plate, and described cathode assembly adopts above-mentioned cathode assembly.
The beneficial effects of the utility model are: connect stable, long service life, the bloom effect is good, and installation procedure is simple, save cost, can improve the operating efficiency of deduster greatly, small investment, the later maintenance expense is low, can be widely used in iron and steel, aluminium electroloysis, industry flue gas purification systems such as generating are transformed with new system or the optimization of electrostatic precipitator, and the scope of application is extensive.
Description of drawings
Fig. 1～Fig. 4 is the failure mode schematic diagram of existing electrostatic dust collector cathode device.
Fig. 5 is the structural representation of cathode assembly of the present utility model.
Be labeled as 1-cathode frame, 2-positive plate, 3-corona discharge electrode, 4-wire line shoe, 5-steel wire rope among the figure.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, existing electrostatic precipitator, the corona discharge electrode of its cathode assembly adopts helical wire, and cathode line ruptures easily, has a strong impact on the normal operation of electrostatic precipitation system.
As shown in Figure 5, the corona discharge electrode 3 of the cathode assembly of electrostatic precipitator of the present utility model adopts steel wire rope 5, and steel wire rope 5 has electric conductivity, the tensile strength height, expansion and contraction is low, and the bloom effect is good, and because quality is softer, can not resemble hard material because of long-time vibration fatigue fracture, be difficult for fracture of wire, fault rate is low, save cost, the two ends of steel wire rope 5 are fixed on the cathode frame 1 by wire line shoe 4, install simple, be difficult for loosening, easy to maintenance.When installing and fixing, note making steel wire rope 5 exceptionally straight and parallel with positive plate 2, prevent that partial discharge phenomenon from appearring in corona discharge electrode.
Embodiment:
It is on probation to utilize the utility model that the high-voltage electrostatic dust separator of certain aluminium electroloysis enterprise is transformed, this electrostatic precipitator specific collection area 28m
2, rated voltage 65kV, model: YSC28-2.
At first, the dismantle corona discharge electrode of the original wire spiral of this electrostatic precipitator, with the steel wire rope 5 of Φ 3.5 as corona discharge electrode, after negative electrode upper frame hangers is passed in the upper end of steel wire rope 5, cathode filament is fixed locked with stainless wire line shoe 4, tighten up after passing negative electrode underframe hangers the lower end of steel wire rope 5, after guaranteeing that steel wire rope 5 is fully stretching, carry out locked with same wire clips to steel wire rope 5 lower ends, can guarantee like this corona discharge electrode in electric field with positive plate spacing keeping parallelism, prevent that partial discharge phenomenon from appearring in corona discharge electrode, also can not occur loosening phenomenon behind the wire clips fixing and locking.
The beneficial effects of the utility model are:, proved that it is fully feasible that steel wire rope substitutes the negative electrode helix in 2 years on probation by adopting steel wire rope 5 as the test of electrostatic precipitator corona discharge electrode, the characteristic of its performance has:
One, makes high-voltage electrostatic dust separator operation steady in a long-term.Stopping transport when clearing up a dust weekly, this high-voltage electrostatic dust separator is in continuous running status always, and run duration an invar silk fracture of rope does not take place and causes the electric field short circuit phenomenon.
Two, reduce equipment failure rate, improve the high-voltage electrostatic dust separator service efficiency.Before transforming high-voltage electrostatic dust separator weekly electric field reach 1～2 time because shutting down maintenance due to the short circuit of polar curve broken string, the time of putting into operation in a week only is about 120 hours, collects about about 0.3 ton of Dust Capacity; It is almost nil because of the electric field short circuit that the polar curve broken string causes to transform the back, and the time of putting into operation in week was reached for about 160 hours, and the dust collection amount is 1 ton.
Three, reduce the electric field cleaning repair time, alleviate personnel labor.Irregularly need weekly before the transformation corona discharge electrode is once cleared up and changed to electric field, the consumption time is about 1 to 2 day time; After the transformation, weekly regularly once, it only is 4 hours that week is consumed the repair time, need only clear up the dust that electric field is collected.
2 years experiment showed, that be fully feasible with steel wire rope alternative metals helix as corona discharge electrode.
Claims (8)
1. gas cleaning electrostatic precipitator cathode assembly comprises cathode frame (1) and corona discharge electrode (3), it is characterized in that: described corona discharge electrode (3) adopts steel wire rope (5).
2. gas cleaning electrostatic precipitator cathode assembly as claimed in claim 1 is characterized in that: described steel wire rope (5) is exceptionally straight fixing, and parallel with positive plate (2).
3. gas cleaning electrostatic precipitator cathode assembly as claimed in claim 1 or 2, it is characterized in that: the two ends of described steel wire rope (5) are fixed on the cathode frame (1) by wire line shoe (4).
4. gas cleaning electrostatic precipitator cathode assembly as claimed in claim 3, it is characterized in that: described wire line shoe (4) is the stainless steel wire line shoe.
5. gas cleaning electrostatic precipitator, comprise cathode assembly and positive plate (2), described cathode assembly comprises cathode frame (1) and corona discharge electrode (3), and corona discharge electrode (3) is positioned between the positive plate (2), it is characterized in that: described corona discharge electrode (3) adopts steel wire rope (5).
6. gas cleaning electrostatic precipitator as claimed in claim 5 is characterized in that: described steel wire rope (5) is exceptionally straight fixing, and parallel with positive plate (2).
7. as claim 5 or 6 described gas cleaning electrostatic precipitator, it is characterized in that: the two ends of described steel wire rope (5) are fixed on the cathode frame (1) by wire line shoe (4).
8. gas cleaning electrostatic precipitator as claimed in claim 7, it is characterized in that: described wire line shoe (4) is the stainless steel wire line shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132582 CN203140160U (en) | 2013-03-22 | 2013-03-22 | Electrostatic dust collector for purifying flue gas and cathode device for electrostatic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320132582 CN203140160U (en) | 2013-03-22 | 2013-03-22 | Electrostatic dust collector for purifying flue gas and cathode device for electrostatic dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140160U true CN203140160U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320132582 Expired - Lifetime CN203140160U (en) | 2013-03-22 | 2013-03-22 | Electrostatic dust collector for purifying flue gas and cathode device for electrostatic dust collector |
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| CN (1) | CN203140160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785540A (en) * | 2014-02-18 | 2014-05-14 | 佛山市科蓝环保科技股份有限公司 | Novel honeycomb electric field structure |
-
2013
- 2013-03-22 CN CN 201320132582 patent/CN203140160U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785540A (en) * | 2014-02-18 | 2014-05-14 | 佛山市科蓝环保科技股份有限公司 | Novel honeycomb electric field structure |
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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: 20130821 |