CN201659028U - Grid-type transverse air inlet turbulent electric dust precipitator - Google Patents

Grid-type transverse air inlet turbulent electric dust precipitator Download PDF

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Publication number
CN201659028U
CN201659028U CN2010201263139U CN201020126313U CN201659028U CN 201659028 U CN201659028 U CN 201659028U CN 2010201263139 U CN2010201263139 U CN 2010201263139U CN 201020126313 U CN201020126313 U CN 201020126313U CN 201659028 U CN201659028 U CN 201659028U
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China
Prior art keywords
turbulent
electric
air inlet
voltage electric
intake
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Expired - Lifetime
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CN2010201263139U
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Chinese (zh)
Inventor
张雷
齐树杰
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Liaocheng Luxi Chemical Engineering Co Ltd
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Liaocheng Luxi Chemical Engineering Co Ltd
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Abstract

The utility model relates to a grid-type transverse air inlet turbulent electric dust precipitator, which comprises a dust precipitating device and a vibrator. The dust precipitating device adopts transverse turbulent air inlet grids as an anode plate, the transverse turbulent air inlet grids are arranged in multiple rows and parallel to air flow, a cathode line and a gap used as a flue gas passage are arranged between two adjacent grids in each row of the transverse turbulent air inlet grids, front seal plates are disposed at the front end of a flue gas passage formed in each row of the transverse turbulent air inlet grids at intervals to form a high-voltage electric field outlet passage, rear seal plates are disposed at the rear end of the flue gas passage at intervals to form a high-voltage electric field inlet passage, and the high-voltage electric field outlet passage is adjacent to the high-voltage electric field inlet passage. The electric dust precipitator substrates longitudinal air inlet of a conventional dust precipitator by grid-type transverse air inlet, changes tail gas in the electric dust precipitator from conventional basically layered flow state into novel turbulent state, prolongs motion path and running time of charged particles inside the precipitator, greatly increases possibility of the charged particles to be acquired by an absorptive heteropole in close distance or even in direct contact, also is in fine in vibration system effect and ensures cleanness of polar plates of the dust precipitator.

Description

Grid type transverse air-intake turbulent flow type electric dust remover
Technical field
The utility model relates to a kind of electric cleaner, particularly a kind of grid type transverse air-intake turbulent flow type electric dust remover.
Background technology
At present, new go up and be in the situation of the stove tail gas electric cleaner of usefulness, tail gas enters deduster behind airflow uniform distribution device, substantially vertically enter electric precipitation high voltage electric field zone with laminar condition along deduster, grit in the tail gas is after high voltage electric field is charged, electronegative grit is pole plate driving on the sunny side progressively, caught by positive plate after arriving the positive plate surface, positively charged grit drives to cathode line, caught by cathode line after arriving the cathode line surface, the particle that is captured is at the moon, during the work of anode vibrated system, concentrate and to fall into ash bucket and be separated tail gas, tail gas after the purification enters air-introduced machine after the exit flow even distribution device is uniform, successively enter wet desulfurizer (if the words that have) after the air-introduced machine supercharging, flue, the grit that chimney enters after atmosphere separates enters conveying device by ash bucket, delivers to grey warehouse.During the work of this kind deduster; charged particle is subjected to the effect of electric field force, tail gas frictional force and self gravitation; because other two power are very little relatively for the grit own wt; can ignore; again because of tail gas is in laminar condition substantially, so the movement locus of charged particle is level (tail gas Way out) deflection heteropole direction backward substantially.For the lower grit of charged ability (as tiny micronic dust, high resistivity dust that charged ability is lower etc.), its to the migration velocity of heteropole than it with little many of tail gas movement velocity backward, so such charged dust such dust particularly far away apart from heteropole, before arriving heteropole, leave electric field with flue gas, therefore can be on heteropole sedimentation and being captured.So to such deduster, the preferred plan of catching such dust is: 1. improve working voltage, strengthen the charged ability of dust; 2. the tail gas of such dust is carried out modified, to reduce the ratio resistance of such dust; 3. increase operation electric field number etc.In general, through such electric cleaner of four electric fields handle the tail gas dustiness can not be lower than 80mg/Nm 3, the tail gas dust content in such electric cleaner of five electric fields is of living in might reach 50mg/Nm at the newly-built initial stage 3, but want the stable 50mg/Nm that reaches 3Dustiness also be unpractical (being no more than 6 months service time in general), because prolongation along with the electric cleaner use, cathode line point discharge ability progressively reduces, and simultaneously positive plate, cathode line surface scale also have in various degree influence to its adsorption capacity.To the boiler exhaust gas of calcium method desulfurization in the stove, owing to contain a large amount of calcium oxide, calcium hydroxide and calcium carbonate in the tail gas, very easily conglomeration on cathode line causes the cathode line discharge capability greatly to reduce, and causes the electric precipitation discharge capability greatly to reduce especially.
The national environmental protection form is strict day by day at present, and discharging tail gas dust content has been controlled at 50mg/Nm 3Below, indivedual areas even be controlled at 30 mg/Nm 3Below, therefore, conventional (existing using) type electric cleaner is the current environmental protection form of incompatibility seriously, so common (routine) electric cleaner is now progressively replaced by sack cleaner, electricity-bag compound type dust remover.Electric cleaner must have one to break through completely, can adapt to strict day by day environmental protection form, and electric cleaner manufacturer can base oneself upon, survive down at environmental protection industry (epi).
In a word, conventional (existing with) type electric cleaner has following several shortcoming:
1, exhaust gas flow state and trend thereof define its adsorption capacity to tiny micronic dust;
2, to reach the national requirements for environmental protection of increasingly stringent, can only increase electric field quantity (more than 5 electric fields) or increase the tail gas actual internal area, to reduce exhaust gas flow cross section speed, cause routine (existing using) type electric cleaner steel consumption bigger, occupy bigger space;
3, to containing the processing of high resistivity dust tail gas, carry out modified and cooperate measures such as taking to increase electric field quantity, just can reach the exhaust emissions requirement, this not only causes, and the electric cleaner floor space is big, steel consumption is higher, cause dust pelletizing system complexity, operation element amount big simultaneously, even cause: 1. " excessively modified " and the accident that causes cause electric cleaner to be stopped transport even system stops transport; 2. " modified not in place " discharging tail gas dustiness exceeds standard.
4, the beater of conventional type electric cleaner cathod system is hammering on the framework of being made up of several square steel that connect cathode line, and rapping strength is comparatively disperseed, the rapping poor effect;
5, maintenance repair, maintenance workload are big, and operating cost is higher;
6, fluctuation of service, overload capacity is relatively poor.
Summary of the invention
The purpose of this utility model provides a kind of grid type transverse air-intake turbulent flow type electric dust remover, this kind electric cleaner takes the grating type transverse air-intake to substitute the vertical air intake of conventional deduster, makes the interior tail gas of electric cleaner become novel turbulent condition by the base layer stream state of routine.
Grid type transverse air-intake turbulent flow type electric dust remover, comprise dust arrester and vibrator, dust arrester is a positive plate with horizontal turbulent air intake screen, more horizontal turbulent air intake screen is arranged and is parallel to the air-flow setting, every horizontal row is provided with cathode line and as the space of exhaust gases passes between adjacent two in turbulent air intake screen, form the high voltage electric field exit passageway at every horizontal row shrouding before the exhaust gases passes front interval that turbulent air intake screen forms is provided with, the rear end is provided with the back shrouding at interval and forms the high voltage electric field intake channel, and the high voltage electric field exit passageway is adjacent with the high voltage electric field intake channel.
Cathode line is fixed on the cathode frame, and cathode frame is formed (small-sized deduster can not have middle frame) by the upper, middle and lower-ranking framework, and every layer of framework is made up of several small frames, and each small frame is made up of the square steel of several connection cathode line.The upper, middle and lower-ranking framework is linked together by vertical beam and crossbeam, and wherein upper frame is fixed on the crossbeam.Cathode frame is hung by negative electrode and is fixed on deduster Nei Ding top.
Horizontal turbulent air intake screen comprises rectangular frame, and a limit of framework is provided with upper junction plate, and the framework of upper junction plate opposite side is provided with lower connecting plate, and framework is being fixed many group grizzly bars by grizzly bar location-plate and grizzly bar backstay.Grizzly bar is vertical with the grizzly bar location-plate.The spacing of grizzly bar by tail gas determine with the front and back position of dust characteristic and place electric field thereof, the dust viscosity of being with tail gas heals greatly, the more close air inlet position of grizzly bar place electric field, the spacing of grizzly bar is bigger, otherwise interval of grid strip is littler, and its spacing is generally between 25-50mm.When flue gas enters the high voltage electric field exit passageway by the high voltage electric field intake channel by horizontal turbulent air intake screen, because of grizzly bar is the curved shape of cross section, preferred sinusoidal, upright or the tiltedly upright and formation curvilinear flow gap that is arranged in parallel of grizzly bar, flow to liquidating of high voltage electric field exit passageway relative wind in addition, make that the tail gas in the high voltage electric field exit passageway is in turbulent condition.
Described vibrator comprises the power transmission shaft that is fixed on the vertical beam, and power transmission shaft is connected with beater by pivoted arm, the beater correspondence be the square steel of the single-row cathode line of connection of cathode frame.
Tail gas spreads to adjacent high voltage electric field exhaust pass by horizontal turbulent air intake screen (positive plate), by horizontal turbulent air intake screen the time, the charged particle major part is captured by anode, after tail gas enters the high voltage electric field exit passageway, grit in the tail gas is fully charged under the effect of high voltage electric field, and is turbulent condition with tail gas moves backward in the high voltage electric field exit passageway.In the process that grit moves backward with tail gas, under the promotion of adjacent both sides high voltage electric field intake channel air-flow, be the height turbulent condition, this kind state makes grit fully charged, and help charged grit and more opportunity is arranged (the different absorption of charge positive charge is negative electrode very near to or in contact with the different absorption utmost point, the different absorption of bear electric charge is anode very) surface, simultaneously, because effect of inertia, make grit when the tail gas direction of motion changes, continuation along former direction of motion anode move (because cathode line point discharge effect, the sub-bear electric charge of most grits) make charged grit thoroughly by different absorption utmost point absorption and from flue gas, separated.
The beneficial effects of the utility model are: take the grating type transverse air-intake to substitute the vertical air intake of conventional deduster, make the interior tail gas of electric cleaner become novel turbulent condition by the base layer stream state of routine.Particle charged in high voltage electric field is with tail gas random motion in high voltage electric field, prolonged motion distance and the running time of charged particle in deduster, simultaneously because charged particle absorbing " back and forth " motion of interpolar, makes that captive chance increases charged particle greatly with closely even directly contacting of the different absorption utmost point.Can overcome the conventional type electric cleaner and be difficult for captive shortcoming because of migration velocity is lower.Simultaneously, the rigidity of horizontal turbulent air intake screen on anode rapping direction is significantly less than the conventional type electric cleaner, makes the dust that is captured on this receiving electrode very easily be got off by " rapping ", guarantees that this receiving electrode is in clean state, keeps the highest absorbability.In addition,, strengthened the rapping of cathod system, guaranteed that cathode line is in clean state, kept its absorption, discharge capability to be in high state in the cathode rapping mode of electric cleaner.More than several improvement, guaranteed that electric cleaner is in the highest efficiency of dust collection all the time, make its handled tail gas dustiness stably remain on 30mg/Nm 3Below.
Description of drawings
Fig. 1 is a dust arrester structure chart of the present utility model;
Fig. 2 is the structure chart of vibrator of the present utility model;
Fig. 3 is the schematic diagram of the utility model operation principle;
Fig. 4 is the horizontal turbulent air intake grid composition that hardens;
Fig. 5 is horizontal turbulent air intake screen air intake schematic diagram;
Fig. 6 is the vertical structure figure of cathode frame;
Wherein: 1. import end socket, 2. inlet air flow distribution apparatus; 3. housing, 4. before shrouding, 5. cathode line, 6. horizontal turbulent air intake screen, 7. the back shrouding 8. exports equal wind apparatus, 9. outlet end socket, 10. vertical beam, 11. power transmission shaft, 12. pivoted arms, 13. beaters, 14. cathode frames, 15. impact block, 16. frameworks, 17. upper junction plates, 18. grizzly bar backstays, 19. the grizzly bar location-plate, 20. grizzly bars, 21. lower connecting plates, 22. negative electrodes are hung, 23. upper frame, 24. middle frame, 25. lower frame, n is a natural number.
The specific embodiment
Grid type transverse air-intake turbulent flow type electric dust remover, comprise dust arrester and vibrator, dust arrester is a positive plate with horizontal turbulent air intake screen 6, more horizontal turbulent air intake screen 6 is arranged and is parallel to the air-flow setting, every horizontal row is provided with cathode line 5 and as the space of exhaust gases passes between adjacent two in turbulent air intake screen 6, form the high voltage electric field exit passageway at every horizontal row shrouding 4 before the exhaust gases passes front interval that turbulent air intake screen 6 forms is provided with, the rear end is provided with back shrouding 7 at interval and forms the high voltage electric field intake channel, and the high voltage electric field exit passageway is adjacent with the high voltage electric field intake channel.
Cathode line 5 is fixed on the cathode frame 14, and cathode frame 14 is formed (small-sized deduster can not have middle frame) by the upper, middle and lower-ranking framework, and every layer of framework is made up of several small frames, and each small frame is made up of the square steel of several connection cathode line.The upper, middle and lower-ranking framework is linked together by vertical beam and crossbeam, and wherein upper frame is fixed on the crossbeam.Cathode frame is hung 22 by negative electrode and is fixed on deduster Nei Ding top.
Horizontal turbulent air intake screen comprises rectangular frame 16, and a limit of framework 16 is provided with upper junction plate 17, and the framework of upper junction plate 17 opposite side is provided with lower connecting plate 21, and framework 16 is being fixed many group grizzly bars 20 by grizzly bar location-plate 19 and grizzly bar backstay 18.Grizzly bar 20 is vertical with grizzly bar location-plate 19.The spacing of grizzly bar by tail gas determine with the front and back position of dust characteristic and place electric field thereof, the dust viscosity of being with tail gas heals greatly, the more close air inlet position of grizzly bar place electric field, the spacing of grizzly bar is bigger, otherwise interval of grid strip is littler, and its spacing is generally between 25-50mm.When flue gas enters the high voltage electric field exit passageway by the high voltage electric field intake channel by horizontal turbulent air intake screen, because of grizzly bar is the curved shape of cross section, upright or the tiltedly upright and formation curvilinear flow gap that is arranged in parallel of grizzly bar, flow to liquidating of high voltage electric field exit passageway relative wind in addition, make that the tail gas in the high voltage electric field exit passageway is in turbulent condition.
Tail gas spreads to adjacent high voltage electric field exhaust pass by horizontal turbulent air intake screen (positive plate), by horizontal turbulent air intake screen the time, the charged particle major part is captured by anode, after tail gas enters the high voltage electric field intake channel, grit in the tail gas is fully charged under the effect of high voltage electric field, and is turbulent condition with tail gas moves backward in the high voltage electric field exit passageway.In the process that grit moves backward with tail gas, under the promotion of adjacent both sides high voltage electric field intake channel air-flow, be the height turbulent condition, this kind state makes grit fully charged, and help charged grit have more opportunity near to or in contact with different absorption extremely the surface, simultaneously, because effect of inertia, make grit when the tail gas direction of motion changes, continuation along former direction of motion anode move (because cathode line point discharge effect, the sub-bear electric charge of most grits) make charged grit thoroughly by different absorption utmost point absorption and from flue gas, separated.
In the described cathod system vibrator of Fig. 2, be fixed in the power transmission shaft 11 on the vertical beam 10, drive pivoted arm 12 and rotate to certain position, the beater 13 arm node that rotates moves in a circle, and directly hammering connects on the square steel of single-row cathode line at cathode frame 14, rapping strength is comparatively concentrated, and the rapping effect is fairly obvious.The result shows, uses the cathod system of this kind rapping mode not have obvious dust stratification or scale formation, and cathode line is in very clean state.The stable absorption, the discharge capability that have kept cathode line.

Claims (4)

1. grid type transverse air-intake turbulent flow type electric dust remover, comprise dust arrester and vibrator, it is characterized in that dust arrester is a positive plate with horizontal turbulent air intake screen, more horizontal turbulent air intake screen is arranged and is parallel to the air-flow setting, every horizontal row is provided with cathode line and as the space of exhaust gases passes between adjacent two in turbulent air intake screen, form the high voltage electric field exit passageway at every horizontal row shrouding before the exhaust gases passes front interval that turbulent air intake screen forms is provided with, the rear end is provided with the back shrouding at interval and forms the high voltage electric field intake channel, and the high voltage electric field exit passageway is adjacent with the high voltage electric field intake channel.
2. according to the described grid type transverse air-intake turbulent flow type electric dust remover of claim 1, it is characterized in that, described horizontal turbulent air intake screen comprises rectangular frame, a limit of framework is provided with upper junction plate, the framework of upper junction plate opposite side is provided with lower connecting plate, is fixing many group grizzly bars by grizzly bar location-plate and grizzly bar backstay between the upper junction plate of framework and lower connecting plate.
3. according to the described grid type transverse air-intake turbulent flow type electric dust remover of claim 2, it is characterized in that described grizzly bar is the curved shape of cross section, grizzly bar is edge-on or tiltedly upright and be arranged in parallel.
4. according to the described grid type transverse air-intake turbulent flow type electric dust remover of claim 1, it is characterized in that described cathode line is fixed on the square steel of cathode frame, described vibrator beater correspondence be the square steel of the single-row cathode line of connection of cathode frame.
CN2010201263139U 2010-03-09 2010-03-09 Grid-type transverse air inlet turbulent electric dust precipitator Expired - Lifetime CN201659028U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946845A1 (en) * 2005-08-10 2008-07-23 Lieshui Jin Electrostatic precipitator with high efficiency
CN101804384A (en) * 2010-03-09 2010-08-18 聊城市鲁西化工工程设计有限责任公司 Grid type transverse air-intake turbulent flow type electric dust remover
CN102861670A (en) * 2012-09-07 2013-01-09 张前铭 Electric dust remover for efficiently catching fine dust
CN105855056A (en) * 2016-05-26 2016-08-17 北票市波迪机械制造有限公司 Micro-unit crossflow type anode device of electric precipitator
CN109647623A (en) * 2018-12-25 2019-04-19 诸暨市库仑环保科技有限公司 A kind of coulomb of electrostatic precipitator
CN109663668A (en) * 2018-12-25 2019-04-23 诸暨市库仑环保科技有限公司 A kind of Coulomb anode plate and Coulomb anode plate dust pelletizing system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1946845A1 (en) * 2005-08-10 2008-07-23 Lieshui Jin Electrostatic precipitator with high efficiency
EP1946845A4 (en) * 2005-08-10 2011-06-01 Lieshui Jin Electrostatic precipitator with high efficiency
CN101804384A (en) * 2010-03-09 2010-08-18 聊城市鲁西化工工程设计有限责任公司 Grid type transverse air-intake turbulent flow type electric dust remover
CN101804384B (en) * 2010-03-09 2012-01-25 聊城市鲁西化工工程设计有限责任公司 Grid type transverse air-intake turbulent flow type electric dust remover
CN102861670A (en) * 2012-09-07 2013-01-09 张前铭 Electric dust remover for efficiently catching fine dust
CN105855056A (en) * 2016-05-26 2016-08-17 北票市波迪机械制造有限公司 Micro-unit crossflow type anode device of electric precipitator
CN109647623A (en) * 2018-12-25 2019-04-19 诸暨市库仑环保科技有限公司 A kind of coulomb of electrostatic precipitator
CN109663668A (en) * 2018-12-25 2019-04-23 诸暨市库仑环保科技有限公司 A kind of Coulomb anode plate and Coulomb anode plate dust pelletizing system
CN109647623B (en) * 2018-12-25 2020-11-06 诸暨市库仑环保科技有限公司 Coulomb electrostatic precipitator

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AV01 Patent right actively abandoned

Granted publication date: 20101201

Effective date of abandoning: 20120125