CN114558694B - Intelligent electric dust removal equipment and dust removal method for coal-fired power plant - Google Patents
Intelligent electric dust removal equipment and dust removal method for coal-fired power plant Download PDFInfo
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- CN114558694B CN114558694B CN202210189996.XA CN202210189996A CN114558694B CN 114558694 B CN114558694 B CN 114558694B CN 202210189996 A CN202210189996 A CN 202210189996A CN 114558694 B CN114558694 B CN 114558694B
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- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000001556 precipitation Methods 0.000 claims abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 8
- 238000010408 sweeping Methods 0.000 claims description 28
- 230000007704 transition Effects 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 15
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- 239000003546 flue gas Substances 0.000 claims description 8
- 238000005457 optimization Methods 0.000 claims description 8
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/743—Cleaning the electrodes by using friction, e.g. by brushes or sliding elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/76—Cleaning the electrodes by using a mechanical vibrator, e.g. rapping gear ; by using impact
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The utility model relates to a coal fired power plant intelligence electric precipitation equipment and dust removal method, belong to dust collecting equipment's field, including the dust removal storehouse, set up air inlet and gas outlet on the dust removal storehouse, be equipped with dust removal mechanism and deashing mechanism in the dust removal storehouse, dust removal mechanism includes the plate electrode, the deashing mechanism is including rapping the subassembly, be equipped with control circuit in the dust removal storehouse, control circuit includes the main power supply, the main power supply is used for the plate electrode and rapping the subassembly power supply, still include adjustment mechanism, adjustment mechanism is used for controlling the main power supply and is connected with the plate electrode or rapping the selectivity electricity of subassembly. The access condition of the control circuit is adjusted through the adjusting mechanism, so that the operation conditions of the dust removing mechanism and the ash cleaning mechanism are not interfered with each other, and the working effect of the ash cleaning mechanism is improved; the working effect of the dust removing equipment can be adjusted by combining different dust removing working conditions and carrying out adaptive adjustment on the parameters of the main power supply, the adjusting mechanism and the working parameters of the vibration assembly, so that the dust removing equipment can adapt to dust removing work under different working conditions.
Description
Technical Field
The application relates to the field of dust removal equipment, in particular to intelligent electric dust removal equipment for a coal-fired power plant.
Background
With the increasingly prominent problem of natural environment pollution, especially the increasingly serious influence of haze weather on the life and health of people, the emission of pollutants must be further reduced, and the emission standard is improved. Therefore, future coal-fired power plants will have to meet emission standards for gas-fired power generation. The flue gas that comes out after coal fired power plant boiler burning must be after handling such as dust removal, desulfurization and denitration, the flue gas after reaching emission standard can only discharge into the atmosphere. From the boiler, the flue gas sequentially passes through the coal economizer, the denitration reactor, the dust remover and the desulfurization tower, finally enters the chimney and is discharged into the atmosphere.
The dust collector is used for intercepting and removing particle dust in gas, in the related technology, the dust collector usually adopts an electrostatic dust collector, the working principle of the electrostatic dust collector is that flue gas is ionized by utilizing a high-voltage electric field, and the charged dust in the gas flow is separated from the gas flow under the action of the electric field; the negative electrode is made of metal wires with different cross-section shapes, called discharge electrode, and the positive electrode is made of metal plates with different geometric shapes, called dust collecting electrode. The dust particles in the gas carry negative charges after passing through the discharge electrode, and the dust particles passing through the dust collecting electrode are adsorbed on the metal plate under the action of mutual attraction of the charges.
A rapping mechanism is also arranged in the electrostatic dust collector and intermittently raps each metal plate of the dust collecting electrode, so that dust attached to the metal plates is separated from falling. The electromagnetic hammer vibrator is a more common vibrator mechanism, and the working principle of the electromagnetic hammer vibrator is the free fall of an electromagnetic relay and a vibrator rod and the like. The electromagnetic relay of the rapping mechanism and the circuit system of the dust removal electrode are mutually independent, namely, when the rapping bar of the rapping mechanism vibrates the metal plate, the dust removal electrode still plays a role in dust adsorption, and the effect of separating dust from the metal plate due to vibration is limited.
Disclosure of Invention
In order to improve the problems, the application provides intelligent electric dust removal equipment and a dust removal method for a coal-fired power plant.
In a first aspect, the application provides a coal fired power plant intelligent electric precipitation equipment adopts following technical scheme:
the utility model provides a coal fired power plant intelligence electrostatic precipitator equipment, includes the dust removal storehouse, the air inlet has been seted up to the one end in dust removal storehouse, and the gas outlet has been seted up to the other end, be equipped with dust removal mechanism and deashing mechanism in the dust removal storehouse, dust removal mechanism includes a plurality of plate electrodes, deashing mechanism is including rapping the subassembly, still be equipped with control circuit in the dust removal storehouse, control circuit includes the main power supply, the main power supply is used for plate electrode and rapping the subassembly power supply, still includes adjustment mechanism, adjustment mechanism is used for controlling the main power supply and plate electrode or rapping the selectivity electricity of subassembly and is connected.
By adopting the technical scheme, the main power supply outputs potential energy to the electrode plate or the rapping assembly, the working states of the electrode plate and the rapping assembly are not interfered with each other, and the electrode plate hardly has adsorption effect on dust in the process of carrying out striking and dust removal on the electrode plate by the rapping assembly, so that the probability of successfully separating the dust from the electrode plate is improved.
Preferably, the adjusting mechanism comprises a conductive assembly, the conductive assembly comprises a main electric slideway, a reversing brake lever, a first contact and a second contact, the main electric slideway, the first contact and the second contact are relatively fixed with the dust removing bin, the main electric slideway is electrically connected with a main power supply, the reversing brake lever is in contact with the main electric slideway and slides relatively, the first contact is in contact with the reversing brake lever, the second contact is positioned on one side of the first contact along the moving direction of the reversing brake lever, and the second contact is electrically connected with the rapping assembly; the adjustment mechanism further comprises a propulsion assembly for controlling movement of the reversing brake lever.
By adopting the technical scheme, the space movement of the reversing brake rod enables the reversing brake rod to be selectively contacted with the first contact and the second contact, and one of the two contacts is selected to be connected into the electric path so as to be connected with different electrical components to work.
Preferably, the plate electrode is equipped with the multirow along the air current direction, and single row plate electrode corresponds a conducting component, be equipped with the fixing base in the dust removal storehouse, be connected with the propulsion extension spring on the fixing base, the one end that the fixing base was kept away from to the propulsion extension spring is connected with the switching-over brake lever, the propulsion subassembly is including advancing the piece, it removes along the direction of arranging of each row plate electrode to advance the piece, it passes from between fixing base and the switching-over brake lever to advance the piece, it exerts thrust to the switching-over brake lever to advance the piece.
By adopting the technical scheme, the interchange working state of the electrode plates and the rapping assembly only occurs at a small part of the electrode plates, and most of the electrode plates in the dust removal bin are still in a stable normal working state, so that the dust removal work of the air flow is not influenced.
Preferably, the switching-over brake lever overcoat is equipped with the insulating casing, fixedly connected with guide bar on the insulating casing, the length direction of guide bar is unanimous with the moving direction of switching-over brake lever, the guide bar passes the fixing base.
Through adopting above-mentioned technical scheme, the moving direction and the mobile state of switching-over brake lever are more stable for the cooperation of guide bar and fixing base.
Preferably, a transition guide wheel is rotatably connected to the insulating shell, a rotation axis of the transition guide wheel is perpendicular to the advancing direction of the pushing block and the moving direction of the reversing brake rod, and a wheel surface of the transition guide wheel is in contact with the pushing block.
Through adopting above-mentioned technical scheme, transition guide pulley and the rolling of the butt relatively of pushing block direct contact, the transition guide pulley that receives pushing block thrust passes thrust to the switching-over brake lever for the switching-over brake lever is accomplished and is removed the stroke, has improved stability, the smooth degree of switching-over inserted bar removal process, has also reduced the wearing and tearing of pushing the block.
Preferably, the propelling component further comprises a propelling motor, a synchronous belt and a synchronous wheel, the propelling motor is fixedly connected with the dust removal bin, the synchronous wheel rotates relative to the dust removal bin, the synchronous belt is wound on the synchronous wheel, and the pushing block is fixedly connected with the synchronous belt.
Through adopting above-mentioned technical scheme, the transmission of hold-in range and synchronizing wheel is cyclic shift, then under propulsion motor's continuous operation, the lapse piece will also carry out continuous round to the conductive component that each row of plate electrode corresponds and adjust.
Preferably, one side of the fixed seat facing the reversing brake rod is fixedly connected with a supporting piece, and one side of the pushing block facing the fixed seat is provided with a supporting groove for the supporting piece to slide in.
Through adopting above-mentioned technical scheme, because the hold-in range has certain flexibility, also receive the reaction force that comes from the switching-over brake lever to the lapse piece that switches over the brake lever and exert thrust, and have support piece's support at the in-process that switches over the brake lever, can improve the positional stability who passes the piece, the aversion process of switching-over brake lever is also more accurate.
Preferably, the dust removal mechanism comprises an installation frame, the installation frame is fixedly connected with the dust removal bin, an installation spring is fixedly connected to the installation frame, and the electrode plate is connected with the installation frame through the installation spring.
Through adopting above-mentioned technical scheme, when removing dust, the subassembly of shaking is shaken the electrode board and is beaten in the vibration, and the installation spring can enlarge the vibration trend of electrode board to carry out buffering protection to the connection structure of mounting bracket and electrode board.
Preferably, the dust removing mechanism further comprises a cleaning assembly, the cleaning assembly comprises a moving rod and a plurality of dust removing rods, the number of the dust removing rods between every two adjacent electrode plates in each row of the electrode plates is one, the dust removing rods are fixedly connected with dust removing sheets, and the dust removing sheets are in contact with the surfaces of the electrode plates; the utility model discloses a dust removal device, including dust removal storehouse, carriage release lever, dust removal storehouse, dust removal pole, stopper, dust removal storehouse sliding connection, its slip direction is vertical direction, it is articulated with the carriage release lever to sweep the dust pole, the rotation plane of sweeping the dust pole is vertical plane, the carriage release lever is located electrode plate one side in the opposite direction of gas advancing direction, fixedly connected with stopper on the carriage release lever, the stopper is used for injecing the turned angle who sweeps the relative carriage release lever of dust pole.
Through adopting above-mentioned technical scheme, the carriage release lever carries each to sweep into the pole removal, sweeps the face friction of dirt piece and plate electrode and realizes removing dust, because there is frictional force between dirt piece and the plate electrode, when the carriage release lever removed, sweeps the angle skew that the dirt pole will take place lagged relative carriage release lever, makes to sweep the relative in-process of rubbing down of dirt piece and plate electrode and form the angle trend of stirring the dust to the air current direction of movement naturally.
Preferably, the sweeping assembly further comprises a driving motor, a driving wheel and a driving belt, the driving motor is fixedly connected with the dust removal bin, the driving wheel rotates relative to the dust removal bin, the driving belt is wound on the driving wheel, and the driving belt is fixedly connected with the movable rod; the conductive assembly further comprises a third contact point, the third contact point is positioned on one side, away from the first contact point, of the second contact point, and the third contact point is electrically connected with the driving motor.
By adopting the technical scheme, the electrode plate, the rapping assembly and the cleaning assembly are selected to work without mutual interference, and the friction between the dust sweeping piece and the electrode plate can stop the electrode plate in a vibration state from vibrating as soon as possible, so as to prepare for entering a subsequent power-on state.
On the other hand, the dust removal method for intelligent electric precipitation sequentially comprises the following steps:
s1: collecting and analyzing data, wherein the data comprises unit load, flue gas flow, dust concentration and the like under different working conditions;
s2: designing and debugging a model, and constructing models of equipment operation parameters according to the collected data under various working conditions;
s3: model verification and optimization, namely substituting the model obtained in the step S2 for actual dust removal operation, testing the dust removal effect and the power consumption effect, and performing feedback optimization on the model according to the test result;
s4: and obtaining the optimal scheme of each model, and applying each optimal scheme to the dust removal operation in the production process.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the adjusting mechanism, along with the continuous rotation of the propulsion motor, the pushing block passes through each row of electrode plates, when one row is reached, the corresponding reversing brake bar of the row is pushed towards the second contact and the third contact in sequence, the working current of the electrode plates is cut off, the rapping assembly and the cleaning assembly are conducted in sequence, the adsorption effect of the electrode plates losing charges on dust is weakened, the rapping assembly enables the electrode plates to vibrate so that the dust is easy to fall off, and the cleaning assembly directly peels off the dust which is not easy to fall off from the electrode plates;
2. the pushing motor is started through the arrangement of the pushing motor, the synchronous belt and the synchronous wheels, the pushing block moves synchronously along with the movement of the synchronous belt, the pushing block can bypass the synchronous wheels after passing through all the rows of electrode plates, returns to the initial position and starts a new round of pushing brake to work, so that the ash cleaning mechanism works continuously.
Drawings
FIG. 1 is a schematic structural diagram for embodying intelligent electric precipitation equipment of a coal-fired power plant in the embodiment of the present application.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram for embodying the adjusting mechanism in the embodiment of the present application.
Fig. 4 is a schematic diagram for embodying a matching mechanism of the pushing block and the conductive component in the embodiment of the present application.
FIG. 5 is a schematic structural diagram for embodying the ash removal mechanism in the embodiment of the present application.
Description of reference numerals: 1. a dust removal bin; 11. an air inlet; 12. an air outlet; 13. a fixed seat; 131. pushing a tension spring; 14. a support member; 2. a dust removal mechanism; 21. a mounting frame; 22. installing a spring; 23. an electrode plate; 3. a dust removal mechanism; 31. a rapping assembly; 32. a vibration motor; 33. a linkage rod; 331. a vibratory hammer; 34. a sweeping assembly; 341. a drive motor; 35. a drive wheel; 351. a drive belt; 36. a travel bar; 361. a limiting block; 37. a dust sweeping rod; 38. sweeping dust sheets; 4. an adjustment mechanism; 41. a conductive component; 411. a main electrical slideway; 42. a reversing brake lever; 421. an insulating case; 422. a guide rod; 423. a transition guide wheel; 43. a first contact; 44. a second contact; 45. a third contact; 46. a transformer; 5. a propulsion assembly; 51. a propulsion motor; 52. a synchronizing wheel; 51. a synchronous belt; 53. a pushing block; 531. a support groove; 532. pushing the wedge surface; 533. force-unloading wedge surface.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses coal fired power plant intelligence electrostatic precipitator equipment, as shown in figure 1, including dust removal storehouse 1, air inlet 11 has been seted up to one side of dust removal storehouse 1, and gas outlet 12 has been seted up to the opposite side, and gas gets into and flows out from gas outlet 12 from air inlet 11. A dust removal mechanism 2 is arranged in the dust removal bin 1, and the dust removal mechanism 2 adopts the principle of electrostatic dust removal to perform dust removal work.
As shown in fig. 1 and 2, a discharge electrode (not shown) is disposed outside the dust bin 1 and at the air inlet 11, dust particles in the air pass through the discharge electrode and then have negative charges, the dust removing mechanism 2 includes a mounting frame 21, a mounting spring 22 and an electrode plate 23, the mounting frame 21 is fixedly mounted in the dust bin 1, the mounting spring 22 is made of an insulator material, one end of the mounting spring is fixed on the mounting frame 21, the electrode plate 23 is connected to the mounting frame 21 through the mounting spring 22, and the electrode plate 23 serves as a dust removing electrode for adsorbing the dust particles having negative charges. The electrode plates 23 are provided in a plurality of rows in the traveling direction of the gas, and a plurality of electrode plates 23 of each row are arranged in a direction perpendicular to the traveling direction of the gas. The dust removing bin 1 is also provided with a control circuit, the control circuit comprises a main power supply and leads (not shown in the figure) for connecting various electric devices, and the control circuit is used for providing electric energy for the discharge electrodes and the electrode plates 23.
As shown in fig. 1 and 3, an ash removal mechanism 3 and an adjusting mechanism 4 are further disposed in the dust removal bin 1, the ash removal mechanism 3 is used for separating dust adsorbed by the electrode plate 23, the ash removal mechanism 3 includes a rapping assembly 31 and a cleaning assembly 34, and the working power sources of the rapping assembly 31 and the cleaning assembly 34 are electric energy provided by a main power supply. The adjustment mechanism 4 is used to enable the control circuit to selectively electrically connect the mains power supply to the electrode plates 23 or to the rapping assembly 31 or to the sweeping assembly 34. In the control circuit, the circuits for supplying power to each row of electrode plates 23 are connected in parallel, namely the electrification conditions of each row of electrode plates 23 are independent, the number of the rapping assemblies 31 and the cleaning assemblies 34 is consistent with the row number of the electrode plates 23, and a single rapping assembly 31 and a single cleaning assembly 34 correspond to one row of electrode plates 23; the adjustment mechanism 4 includes a plurality of conductive members 41, and a single conductive member 41 corresponds to a control circuit that controls a row of electrode plates 23.
As shown in fig. 3 and 4, the conductive assembly 41 includes a main electrical slideway 411, a reversing brake lever 42, a first contact 43, a second contact 44 and a third contact 45, the main electrical slideway 411 is fixedly connected with the dust removing bin 1, and the reversing brake lever 42 slides in the dust removing bin 1; the length direction of the main electric slideway 411 is vertical, the moving direction of the reversing brake lever 42 is the length direction of the main electric slideway 411, and both the reversing brake lever 42 and the main electric slideway 411 are used as a part of a control circuit and are always contacted with each other. Fixedly connected with fixing base 13 on the 1 inner wall in dust removal storehouse, fixing base 13 provides the basis for the slip of switching-over brake lever 42. Fixing base 13 is located the below of switching-over brake lever 42, and switching-over brake lever 42 overcoat is equipped with insulating shell 421, and insulating shell 421 is vertical direction towards one side fixedly connected with guide bar 422 of fixing base 13, the length direction of guide bar 422, and it inserts fixing base 13 and the two transition fit.
As shown in fig. 3 and 4, the first contact 43, the second contact 44 and the third contact 45 are also part of the control circuit, and are contact ends of different circuits, and the contact ends of the three circuits are all provided with metal elastic sheets; in the moving process of the reversing brake rod 42, the reversing brake rod is selected to contact with the metal elastic sheet of the three contact ends; when the reversing brake lever 42 is in contact with the first contact 43, the main power supply supplies power to the row of electrode plates 23, when the reversing brake lever 42 is in contact with the second contact 44, the rapping assembly 31 is powered to start operating, and when the reversing brake lever 42 is in contact with the third contact 45, the sweeping assembly 34 is powered to start operating. The first contact 43, the second contact 44 and the third contact 45 are arranged in a vertical direction, the first contact 43 being located relatively low, the third contact 45 being located relatively high and the second contact 44 being located therebetween. A push tension spring 131 is connected between the insulating housing 421 and the fixing base 13, the push tension spring 131 is coaxially penetrated by the guide rod 422, and the reversing brake rod 42 is in contact with the first contact 43 in a natural state.
As shown in fig. 1 and 3, the adjusting mechanism 4 further includes a pushing assembly 5, the pushing assembly 5 is used for controlling the movement of each reversing brake lever 42, and the pushing assembly 5 includes a pushing block 53, a pushing motor 51, a synchronizing wheel 52 and a timing belt 521. The propelling motor 51 is fixedly installed on the dust removal bin 1, two synchronizing wheels 52 are respectively and rotatably connected with the dust removal bin 1, the output shaft of the propelling motor 51 is coaxially and fixedly connected with one synchronizing wheel 52, the synchronous belt 521 is wound on the two synchronizing wheels 52, the synchronous belt 521 is stably driven after the propelling motor 51 is started, and the driving plane of the synchronous belt 521 is a horizontal plane. The timing belt 521 passes through a gap between each reversing brake rod 42 and the fixed seat 13, the pushing block 53 is fixedly connected to the timing belt 521, and the pushing block 53 sequentially passes through each conductive assembly 41 in the operation process of the propelling assembly 5.
As shown in fig. 3 and 4, push block 53 is formed with two pushing wedge surfaces 532 on one side of its traveling direction and a force-removing wedge surface 533 on the other side; the insulation shell 421 is rotatably connected with a transition guide wheel 423, the rotation axis of the transition guide wheel 423 is simultaneously perpendicular to the advancing direction of the pushing block 53 and the moving direction of the reversing brake rod 42, and the transition guide wheel 423 is directly abutted against the pushing block 53 and rolls relatively. The pushing block 53 moves, the lower pushing wedge surface 532 lifts the transition guide wheel 423 to a position between the two pushing wedge surfaces 532, at this time, the reversing brake lever 42 is in contact with the second contact 44, the electrode plate 23 loses power supply, and the rapping assembly 31 starts to work; the pushing block 53 continues to move, the higher pushing wedge 532 lifts the transition guide wheel 423 to the top of the pushing block 53, at this time, the reversing brake lever 42 is in contact with the third contact, the rapping assembly 31 stops working, and the cleaning assembly 34 starts working; the pushing block 53 continues to move, the transition guide wheel 423 slides down along the force-unloading wedge surface 533, the reversing brake lever 42 contacts with the first contact 43 again, the electrode plate 23 enters the dust-collecting working state again, and at this time, the pushing block 53 moves to the position matched and adjusted with the conductive assembly 41 corresponding to the next row of electrode plates 23, that is, at most only one row of electrode plates 23 in the dust-collecting bin 1 is in the non-electrified state at the same time. The control circuit is provided with a transformer 46, and the transformer 46 enables the current sent by the main power supply to be suitable for the driving work of different electric appliances.
As shown in fig. 4, since the push pad 53 applies a vertical upward pushing force to the switch lever 42, in order to improve the stability of the height position of the push pad 53, the support member 14 is fixedly connected to the fixed base 13, and the support member 14 is a lever having a length direction corresponding to the moving direction of the push pad 53. A supporting groove 531 is formed in one side of the pushing block 53 close to the fixing seat 13, and when the pushing block 53 is about to contact the transition guide wheel 423, the supporting member 14 enters the supporting groove 531 along the same direction, and the pushing block 53 is not easy to move in the vertical direction due to the cooperation of the supporting member 14 and the supporting groove 531.
As shown in fig. 1 and 5, a single rapping assembly 31 corresponds to a row of electrode plates 23, which comprises a vibration motor 32, a linkage rod 33 and a vibration hammer 331, wherein the vibration motor 32 is fixedly mounted on the dust removing bin 1 and is electrically connected with a second contact 44; the linkage rod 33 is rotatably connected with the dust removal bin 1, and the length direction of the linkage rod 33 is consistent with the arrangement direction of the row of electrode plates 23. Vibrating motor 32's output shaft and the coaxial fixed connection of gangbar 33, vibratory hammer 331 has a plurality of, on the equal fixedly connected with gangbar 33 of each vibratory hammer 331, when gangbar 33 rotates, vibratory hammer 331 rotates in step, and vibratory hammer 331's tup is beaten plate electrode 23 in turn, and the existence of installation spring 22 makes the vibration range and the vibration of plate electrode 23 all increase long, is favorable to breaking away from smoothly of dust on the face.
As shown in fig. 1, 2 and 5, the sweeping assembly 34 includes a driving motor 341, a driving pulley 35 and driving belts 351, the driving motor 341 is fixedly installed on the dust removing bin 1 and is electrically connected to the third contact 45, the driving motor 341, the driving pulley 35 and the driving belts 351 are similar to the matching of the pushing motor 51, the synchronizing pulley 52 and the synchronizing belt 521, unlike the pushing assembly 5, the driving plane of the driving belts 351 is a vertical plane, and there are four driving pulleys 35, there are two driving belts 351, each two driving pulleys 35 are responsible for winding one driving belt 351, and the two driving belts 351 are respectively located at two opposite ends of the arrangement direction of the row of electrode plates 23. The sweeping assembly 34 further includes a moving rod 36 and a plurality of dust-sweeping rods 37, wherein both ends of the moving rod 36 are respectively fixedly connected to two driving belts 351, and the driving motor 341 is activated to drive the moving rod 36 to move in the vertical direction through the driving wheels 35 and the driving belts 351. The moving rod 36 is located at one side of the corresponding row of electrode plates 23 along the opposite direction of the gas advancing direction, a plurality of dust sweeping rods 37 are hinged on the moving rod 36, the dust sweeping rods 37 are located at one side of the moving rod 36 facing the electrode plates 23, and the relative rotating planes of the dust sweeping rods 37 and the electrode plates 23 are vertical planes.
As shown in fig. 2 and 5, the dust-sweeping rods 37 extend between the electrode plates 23, the number of the dust-sweeping rods 37 between each two adjacent electrode plates 23 is one, the dust-sweeping rods 37 are fixedly connected with dust-sweeping pieces 38, the dust-sweeping pieces 38 are made of insulating materials, and opposite edges of the dust-sweeping pieces 38 are in contact with opposite plate surfaces of the two electrode plates 23. Each time the driving motor 341 is started, it will control the driving wheel 35 to perform a forward rotation and a backward rotation, so that the moving rod 36 is first lowered and then raised; because of the friction between the dust-sweeping piece 38 and the electrode plate 23, when the moving rod 36 moves, the dust-sweeping rod 37 will generate a lagging angle offset relative to the moving rod 36, so that the dust will naturally form an angle trend of shifting the dust to the moving direction of the air flow during the relative downward friction between the dust-sweeping piece 38 and the electrode plate 23. The moving rod 36 is further fixedly connected with a limiting block 361 for preventing the dust sweeping rod 37 from swinging too much relative to the swinging angle, when the dust sweeping rod 37 swings to abut against the limiting block 361, the dust sweeping rod cannot swing continuously, and the dust sweeping piece 38 can touch most of the area of the plate surface of the electrode plate 23, so that the dust removing effect is ensured.
It can be known from the working mechanisms of the dust removing mechanism 2 and the ash removing mechanism 3 that the voltage and the current of the total power supply, the working power of the vibration motor 32 and the moving period of the pushing block 53 determine the working conditions of each part of the dust removing equipment, and when factors such as the coal type for combustion, the unit load and the like change, the dust removing effect of the equipment on gas is also influenced. Therefore, before the dust removing equipment formally starts to work, data acquisition is needed to be carried out on the equipment running conditions under various conditions and the running effects of various functional mechanisms, and a control parameter model capable of adapting to various working conditions is finally established by combining factors such as energy loss and equipment loss, so that the dust removing equipment can realize more efficient, safe and economic intelligent dust removing work.
The implementation principle of coal-fired power plant's intelligent electrostatic precipitator equipment of the embodiment of this application does:
in the working process of the dust removing equipment, the main power supply is turned on, meanwhile, the propelling assembly 5 keeps operating all the time, the pushing block 53 sequentially pushes each reversing brake bar 42 to cut off the power of each row of electrode plates 23, the dust removing mechanism 3 corresponding to each row of electrode plates 23 is started immediately, the dust removing mechanism 3 cleans the dust on the surfaces of the electrode plates 23, after the dust removing mechanism 3 finishes working, the main power supply is switched on again through the first contact 43, and the row of electrode plates 23 can perform dust adsorption again. The timing belt 521 can clean the electrode plates 23 once every turn of the pushing block 53.
The application provides a dust removal method for intelligent electric precipitation, which sequentially comprises the following steps:
s1: collecting and analyzing data, wherein the data comprises unit load, flue gas flow, dust concentration and the like under different working conditions;
s2: designing and debugging a model, and constructing models of equipment operation parameters according to the collected data under various working conditions;
s3: model verification and optimization, namely substituting the model obtained in the step S2 for carrying out actual dust removal operation, testing the dust removal effect and the power consumption effect, and carrying out feedback optimization on the model according to the test result;
s4: and obtaining the optimal scheme of each model, and applying each optimal scheme to the dust removal operation in the production process.
And (3) carrying out working parameter model construction on the dust removing equipment, and establishing a correlation model of the equipment operation parameters and the dust concentration at a discharge port under various working conditions according to deep analysis of historical data such as unit load, flue gas flow, dust concentration and the like. The method is characterized in that the purposes that the emission of dust at the outlet does not exceed the standard and the energy consumption and power are minimized are taken as targets, a group intelligent optimization algorithm is applied, a plurality of operation parameter combinations are initialized randomly in an optimization range, and the operation parameter combinations and working condition indexes are input into a pre-constructed dust accurate prediction model, so that a safe and effective optimal operation strategy is screened out. Actually verifying the screened operation strategy, and further optimizing or correcting the model according to a verification result; and deploying the finally obtained model result in an intelligent server of an engineer station, and carrying out communication control on the work of the dust removing equipment.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a coal fired power plant intelligence electrostatic precipitator equipment, includes dust removal storehouse (1), air inlet (11) have been seted up to the one end in dust removal storehouse (1), and gas outlet (12) have been seted up to the other end, be equipped with dust removal mechanism (2) and deashing mechanism (3) in dust removal storehouse (1), dust removal mechanism (2) are including a plurality of plate electrodes (23), deashing mechanism (3) are including rapping assembly (31), still be equipped with control circuit in dust removal storehouse (1), control circuit includes the main power supply, the main power supply is used for plate electrode (23) and rapping assembly (31) power supply, its characterized in that: the device also comprises an adjusting mechanism (4), wherein the adjusting mechanism (4) is used for controlling the selective electric connection of the main power supply and the electrode plate (23) or the rapping assembly (31);
the adjusting mechanism (4) comprises a conductive assembly (41), the conductive assembly (41) comprises a main electric slideway (411), a reversing brake rod (42), a first contact (43) and a second contact (44), the main electric slideway (411), the first contact (43) and the second contact (44) are relatively fixed with the dust removing bin (1), the main electric slideway (411) is electrically connected with a main power supply, the reversing brake rod (42) is in contact with the main electric slideway (411) and slides relatively, the first contact (43) is in contact with the reversing brake rod (42), the second contact (44) is located on one side of the first contact (43) along the moving direction of the reversing brake rod (42), and the second contact (44) is electrically connected with the rapping assembly (31);
the adjusting mechanism (4) further comprises a propelling component (5), and the propelling component (5) is used for controlling the movement of the reversing brake lever (42);
electrode plate (23) are equipped with the multirow along the air current direction, and single-row electrode plate (23) correspond a conducting component (41), be equipped with fixing base (13) in dust removal storehouse (1), be connected with on fixing base (13) and impel extension spring (131), impel extension spring (131) to keep away from the one end of fixing base (13) and be connected with switching-over brake lever (42), impel subassembly (5) including advancing piece (53), it removes along the direction of arranging of each row electrode plate (23) to advance piece (53), it passes from between fixing base (13) and switching-over brake lever (42) to advance piece (53), it exerts thrust to switching-over brake lever (42) to advance piece (53).
2. The coal-fired power plant intelligent electric precipitation equipment of claim 1, characterized in that: an insulating shell (421) is sleeved outside the reversing brake rod (42), a guide rod (422) is fixedly connected to the insulating shell (421), the length direction of the guide rod (422) is consistent with the moving direction of the reversing brake rod (42), and the guide rod (422) penetrates through the fixed seat (13);
the insulation shell (421) is rotatably connected with a transition guide wheel (423), the rotating axis of the transition guide wheel (423) is simultaneously vertical to the advancing direction of the pushing block (53) and the moving direction of the reversing brake rod (42), and the wheel surface of the transition guide wheel (423) is in contact with the pushing block (53).
3. The coal-fired power plant intelligent electric precipitation equipment of claim 1, characterized in that: propulsion subassembly (5) still include propulsion motor (51), hold-in range (521) and synchronizing wheel (52), propulsion motor (51) and dust removal storehouse (1) fixed connection, synchronizing wheel (52) and dust removal storehouse (1) relative rotation, hold-in range (521) are around locating on synchronizing wheel (52), pass piece (53) and hold-in range (521) fixed connection.
4. The coal-fired power plant intelligent electric precipitation equipment of claim 3, characterized in that: one side of the fixed seat (13) facing the reversing brake lever (42) is fixedly connected with a supporting piece (14), and one side of the pushing block (53) facing the fixed seat (13) is provided with a supporting groove (531) for the supporting piece (14) to slide in.
5. The coal-fired power plant intelligent electric precipitation equipment of claim 1, characterized in that: dust removal mechanism (2) include mounting bracket (21), mounting bracket (21) and dust removal storehouse (1) fixed connection, fixedly connected with installation spring (22) on mounting bracket (21), electrode board (23) are connected with mounting bracket (21) through installation spring (22).
6. The coal-fired power plant intelligent electric precipitation equipment of claim 5, characterized in that: the ash removal mechanism (3) further comprises a cleaning assembly (34), the cleaning assembly (34) comprises a moving rod (36) and a plurality of dust removal rods (37), the number of the dust removal rods (37) between every two adjacent electrode plates (23) in each row of the electrode plates (23) is one, dust removal sheets (38) are fixedly connected to the dust removal rods (37), and the dust removal sheets (38) are in contact with the surfaces of the electrode plates (23);
removal pole (36) and dust removal storehouse (1) sliding connection, its slip direction is vertical direction, it is articulated with removal pole (36) to sweep dirt pole (37), the rotation plane of sweeping dirt pole (37) is vertical plane, removal pole (36) are located electrode plate (23) along the opposite direction one side of gas advancing direction, fixedly connected with stopper (361) on removal pole (36), stopper (361) are used for injecing the turned angle who sweeps relative removal pole (36) of dirt pole (37).
7. The coal-fired power plant intelligent electric precipitation equipment of claim 6, characterized in that: the cleaning assembly (34) further comprises a driving motor (341), a driving wheel (35) and a driving belt (351), the driving motor (341) is fixedly connected with the dust removing bin (1), the driving wheel (35) and the dust removing bin (1) rotate relatively, the driving belt (351) is wound on the driving wheel (35), and the driving belt (351) is fixedly connected with a moving rod (36);
the conductive assembly (41) further comprises a third contact (45), the third contact (45) is located on the side of the second contact (44) facing away from the first contact (43), and the third contact (45) is electrically connected with the driving motor (341).
8. A dust removal method of intelligent electric dust removal is characterized in that: the method sequentially comprises the following steps:
s1: collecting and analyzing data, wherein the data comprises unit load, flue gas flow and dust concentration under different working conditions;
s2: designing and debugging a model, namely constructing the model of the operation parameters of the intelligent electric precipitation equipment of the coal-fired power plant of claim 1 according to the collected data under different working conditions;
s3: model verification and optimization, namely substituting the model obtained in the step S2 for actual dust removal operation, testing the dust removal effect and the power consumption effect, and performing feedback optimization on the model according to the test result;
s4: and obtaining the optimal scheme of each model, and applying each optimal scheme to the dust removal operation in the production process.
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