CN103240181A - Net mobile electrostatic precipitator of dust collecting electrode, and dust collecting method - Google Patents
Net mobile electrostatic precipitator of dust collecting electrode, and dust collecting method Download PDFInfo
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- CN103240181A CN103240181A CN201310165888XA CN201310165888A CN103240181A CN 103240181 A CN103240181 A CN 103240181A CN 201310165888X A CN201310165888X A CN 201310165888XA CN 201310165888 A CN201310165888 A CN 201310165888A CN 103240181 A CN103240181 A CN 103240181A
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Abstract
The invention discloses a net mobile electrostatic precipitator of a dust collecting electrode, and a dust collecting method. The mobile electrostatic precipitator of the dust collecting electrode comprises an air inlet, an air outlet, a dust collector, a first ash bucket, a shell, a net dust collecting electrode and a drive mechanism, wherein the air inlet is arranged at one end of the shell; the air outlet is arranged at the other end of the shell; a cathode line and an anode plate for generating a first electric field are arranged inside the shell; the first ash bucket is arranged below the first electric field; meanwhile, the net dust collecting device is arranged behind the first electric field and fixedly connected with the drive mechanism, is vertical to the airflow direction, and can shield the circulating surface of the airflow; the drive mechanism is fixedly connected with the shell or the air outlet; and the dust collecting device is arranged at the bottom of the drive mechanism. By adopting the dust collecting method provided by the invention, the efficient dust collecting effect is achieved; secondary raise dust in a deashing process is avoided; dust escaping from the first electric field can be effectively trapped; the effect of controlling PM2.5 particulate matters is significant; and increasingly stringent environment-friendly requirements can be met.
Description
Technical field
The invention belongs to the dedusting technology field, particularly a kind of netted mobile dust collector pole electric cleaner and dust collection method.
Background technology
Advantages such as that electric cleaner has is high temperature resistant, high pressure resistant, efficient, energy-saving and environmental protection and operation maintenance are convenient, be widely used in industrial circles such as electric power, metallurgy, building materials, chemical industry, be main force's cleaner that generally acknowledge in the whole world, China's electric cleaner especially uses big country.But also there is following shortcoming in it: produce a large amount of dust secondary fly-ups during the dust collecting pole plate vibration dust-cleaning; The dust collecting pole plate deashing is unclean, and dust specific resistance is greater than 10
11Easily produce anti-corona during Ω ㎝; Board-like dust collector pole with airflow direction is arranged in parallel is difficult to capture PM
2.5Fine dust.Along with the raising day by day of environmental requirement, the application of electric cleaner is more and more limited.The dust emission standard of present most developed countries has been brought up to 10mg/Nm
3, the relevant criterion of China is also stricter.As: the dust emission limit value is lower than 30mg/Nm in new thermal power plant's atmosphere pollutants emission standards
3The dust emission limit value is lower than 50mg/Nm in iron and steel enterprise's atmosphere pollutants emission standards
3" key area prevention and control of air pollution " 12 " planning " regulation, special emission limit will be carried out in 47 regions of " ten groups in three districts " 19 provinces such as Beijing-Tianjin Ji, the Yangtze River Delta, Pearl River Delta (district, city) and above city; Some place requires the dust emission limit value near the standard of the most developed country, makes domestic dust removing effects at the labour electric cleaner substantially all can't meet the demands, and in addition, occurs serious haze weather in recent years continuously, and country will put into effect control PM soon
2.5Standard.Therefore, numerous active service electric cleaners all are faced with the challenge of upgrading.
At present, being actually used in electric cleaner puies forward the typical scenario of imitate transforming and have: electricity changes modes such as bag, electricity+bag, electricity+traveling electrode.Wherein electricity change the bag be that electric cleaner changes sack cleaner, electricity+bag is electricity back bag complex dust collector or the alternate hybrid deduster of electricity bag before electric cleaner changes into, these two kinds of modification schemes need complete removal or the original electric cleaner electric field of most of dismounting, completely newly assemble equipment such as filter bag, replacing system fan then; Electricity+traveling electrode scheme is to change board-like mobile dust collector pole electric field into after former electric cleaner end electric field is removed fully.These formula investings are big, long construction period, and the operating cost height, and restricted by factors such as space, place toward contact in the transformation process.In addition, the partial fume condition also is not suitable for adopting bag-type dusting.
Summary of the invention
Embodiment of the invention technical problem to be solved provides a kind of netted mobile dust collector pole electric cleaner and the dust collection method that can realize high-effective dust-removing, not only can effectively capture the fine dust of escaping from first electric field, but also to PM in the flue gas
2.5Particle control has remarkable result.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of netted mobile dust collector pole electric cleaner, comprising: be used for the air-flow input air inlet, be used for gas outlet, dust collecting, first ash bucket and the housing of air-flow output; Described air inlet places described housing one end, and described gas outlet places the described housing other end, is provided with cathode line and positive plate for generation of first electric field in the described housing; Described first ash bucket places described first electric field below, and simultaneously, the described first electric field rear is provided with the powder dust adsorbing device for generation of second electric field.
Further, described powder dust adsorbing device comprises: netted dust collector pole and the driving mechanism that moves for the described netted dust collector pole of driving; Described netted dust collector pole is fixedlyed connected with described driving mechanism, and described netted dust collector pole and airflow direction are perpendicular; Described netted dust collector pole can realize blocking described airflow face; Described driving mechanism is fixedlyed connected with described housing or described gas outlet; Described dust collecting places described driving mechanism bottom, can realize collecting the dust of described netted dust collector pole absorption.
Further, described driving mechanism comprises: first rotating shaft, second rotating shaft, first chain wheel set, second chain wheel set and chain group; Described first chain wheel set is passed in described first rotating shaft, and fixedlys connected with the described first chain wheel set middle sprocket; Described second chain wheel set is passed in described second rotating shaft, and fixedlys connected with the described second chain wheel set middle sprocket; Described first chain wheel set, described second chain wheel set can realize synchronous rotation by described chain group; Described netted dust collector pole is fixedlyed connected with described chain group; Described first rotating shaft is passed described housing and is connected with extraneous drive motors; Described drive motors can be realized driving described first rotating shaft by connecting gear and rotate, and then drives described first chain wheel set, described chain group, described second chain wheel set realization synchronous operation successively by described first rotating shaft.
Further, described netted dust collector pole comprises: several square steel meshes, suitable square fixed mount and several quadras of several and described square bar mesh-shaped; Described fixed mount is double-decker, and described steel mesh places between the described fixed mount double-decker, and realizes that by retention mechanism the two edge is fastening; Described fixed mount is horizontally arranged in the described quadra successively, and fixedlys connected with described quadra; Described quadra is fixedlyed connected with described chain group by its edge, and each described quadra equidistantly is arranged above and below successively, between the adjacent quadra about the edge be connected mutually; The mesh aperture of described steel mesh is 0.25～4mm.
Further, described first chain wheel set comprises: first sprocket wheel, second sprocket wheel; Described second chain wheel set comprises: the 3rd sprocket wheel, the 4th sprocket wheel; Described first sprocket wheel, described second sprocket wheel are passed in described first rotating shaft successively, and fixedly connected with described first sprocket wheel, described second sprocket wheel respectively; Described the 3rd sprocket wheel, described the 4th sprocket wheel are passed in described second rotating shaft successively, and fixedly connected with described the 3rd sprocket wheel, described the 4th sprocket wheel respectively; Described chain group top respectively with described first sprocket wheel, the described second sprocket wheel active link; Described chain group bottom respectively with described the 3rd sprocket wheel, described the 4th sprocket wheel active link; The described first centre of sprocket axle, the described second centre of sprocket axle, described the 3rd centre of sprocket axle, described the 4th centre of sprocket axle, described first rotating shaft and described second rotating shaft all are in the same perpendicular, and described perpendicular and described airflow direction are perpendicular.
Further, described chain group comprises: first chain, second chain; The described first chain top and the described first sprocket wheel active link, described first chain bottom and described the 3rd sprocket wheel active link; The described second chain top and the described second sprocket wheel active link, described second chain bottom and described the 4th sprocket wheel active link; Described fixed mount is fixedlyed connected with described first chain by one lateral edges position, fixedlys connected with described second chain in its opposite side edge.
Further, described dust collecting comprises: second ash bucket, rotation deashing brush, holder and link; Fixedly connected with described link respectively by described holder in described rotation deashing brush two ends, and described rotation deashing brush can be realized relatively rotating with described holder; The described second rotating shaft two ends flexibly connect with described link respectively; Described rotation deashing brush places the second ash bucket inside by described link; Described second ash bucket is fixedlyed connected with described housing bottom, and is positioned at described second rotating shaft below, and can realize collecting in the described netted dust collector pole by described rotation deashing brush and adsorb dust.
Further, described link comprises: first support, second support; Described first support is fixedlyed connected with described second support, and the two is vertical mutually; The axial position of described first support is provided with chute, and described second roller end can realize sliding up and down by described chute; Fixedly connected with described second support respectively by described holder in described rotation deashing brush two ends.
Further, the place ahead of described steel mesh or rear are furnished with corona wire; Described corona wire is a discharge lines, line discharge lines or face discharge lines.
Further, described powder dust adsorbing device is at least one group; Every group of described powder dust adsorbing device is array distribution successively along described airflow direction, and described powder dust adsorbing device bottom is provided with described dust collecting.
Further, the embodiment of the invention also provides a kind of dust collection method based on described mobile dust collector pole electric cleaner, it is characterized in that, comprising:
Dust enters first electric field with air-flow, and dust is charged in first electric field, realizes dust absorption for the first time;
Residue dust after the dust absorption for the first time enters second electric field with air-flow, is at first caught by the steel mesh windward side, realizes dust absorption for the second time;
Residue dust after the dust absorption for the second time passes the steel mesh mesh with air-flow, realizes dust absorption for the third time in the process of passing;
Residue dust after the dust absorption for the third time passes steel mesh with air-flow, and the 4th dust absorption is realized in the vortex that enters the formation of steel mesh lee face;
Driving mechanism moves to the dust collecting that is positioned at non-flow area with steel mesh, and by placing the rotation deashing brush in the dust collecting that the dust that adsorbs on the steel mesh is removed, the dust that is eliminated directly falls into second ash bucket.
A kind of netted mobile dust collector pole electric cleaner and dust collection method that the embodiment of the invention provides, by adopting one or more groups netted dust collector pole of horizontally set behind first electric field, given full play to that steel mesh utilizes multiple dust removal mechanism such as inertial collision, interception, diffusion effect and Electrostatic Absorption to capture the effect of fine dust in the netted dust collector pole.Its beneficial effect is as described below:
1., because air-flow enters normally subparticle of the entrained dust of second electric field, simultaneously dust is consistent with suffered electric field force direction with the direction of motion of air-flow, so dust moves to netted dust collector pole at a high speed, the part dust is caught by the windward side of steel mesh;
2., most fine dusts of not caught by the steel mesh windward side, go out by the steel mesh mesh; Because the aperture is 0.25～4mm, according to the Coulomb's law formula F
1,2=kq
1Q
2/ R
2As can be known, positive and negative charge q in the electric field
1With q
2The more little Coulomb force of distance R is just more big; And the ultimate range between grit and the netted dust collector pole is that 2mm(mesh aperture maximum is made as 4mm among the present invention), namely with the traditional electrical deduster in grit compare electric field force F with the ultimate range 200mm of dust collecting pole plate
1,2To increase 10000 times in theory! Greatly brought into play the effect of statcoulomb power.Be fine dust when passing through mesh, can be adsorbed onto on the net by moment;
3., horizontal steel mesh forms the vortex near the disturbance of air-flow is made its lee face, under the synergy of eddy current and Coulomb force, the fine dust major part of having passed steel mesh is captured by the steel mesh lee face;
4., the present invention can export the group number that flue dust condition, electric cleaner trailing space size and final emission request determine to arrange netted mobile dust collector pole, enhancing dust removing effects according to first electric field;
5., by netted dust collector pole is installed on the driving mechanism, dust collecting is arranged on non-flow area, realized the automatically continuous deashing of netted dust collector pole, remain the net that gathers dust " totally ", thoroughly avoid the anti-corona problem of dust secondary fly-up and high resistivity dust, guarantee the high capture rate to fine dust;
6., the present invention is with " dust absorption net is divided into piece " (adopting some steel meshes, some fixed mounts and some frameworks), being conducive to deduster maximizes, can change separately after certain piece steel mesh breakage, the installation and maintenance maintenance is convenient, slit between every steel mesh can be played earial drainage and be fallen drag effect when deashing breaks down, safe and reliable to operation, maintenance cost is low;
8., the present invention in steel mesh the place ahead or after can set up corona wire according to the charged situation of dust, realize to improve the dust catching probability;
9., the present invention carries when imitate transforming at old electric cleaner, can not increase the place newly, do not change former electric field structure, has advantages such as improvement cost is low, short construction period.
Description of drawings
The netted mobile dust collector pole electric cleaner overall structure block diagram that Fig. 1 provides for the embodiment of the invention one.
The netted mobile dust collector pole electric cleaner overall structure block diagram that Fig. 2 provides for the embodiment of the invention two.
The theory structure schematic diagram of powder dust adsorbing device in a kind of netted mobile dust collector pole electric cleaner that Fig. 3 provides for the embodiment of the invention.
Powder dust adsorbing device front view in a kind of netted mobile dust collector pole electric cleaner that Fig. 4 provides for the embodiment of the invention.
The theory structure side view of powder dust adsorbing device in a kind of netted mobile dust collector pole electric cleaner that Fig. 5 provides for the embodiment of the invention.
The theory structure front view of netted dust collector pole in a kind of netted mobile dust collector pole electric cleaner that Fig. 6 provides for the embodiment of the invention.
The theory structure side view of netted dust collector pole in a kind of netted mobile dust collector pole electric cleaner that Fig. 7 provides for the embodiment of the invention.
The dust collection method process chart of a kind of netted mobile dust collector pole electric cleaner that Fig. 8 provides for the embodiment of the invention.
Wherein, 1-housing, 2-steel mesh, the 3-fixed mount, 4-framework, 5-drive motors, 6-rotation deashing brush, 7-corona wire, 8-chute, 9-screw threads for fastening mechanism, 10-baffle plate, S0-first electric field, S01-first area electric field, S02-second area electric field, S03-the 3rd regional electric field, the 101-air inlet, 102-gas outlet, 201-first ash bucket, 202-second ash bucket, 301-first rotating shaft, 302-second rotating shaft, 401-first sprocket wheel, 402-second sprocket wheel, 403-the 3rd sprocket wheel, 404-the 4th sprocket wheel, 501-first chain, 502-second chain, 601-first support, 602-second support.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment provided by the invention is described in further detail.
Embodiment one
Referring to Fig. 1,3-7, a kind of netted mobile dust collector pole electric cleaner that the embodiment of the invention provides comprises: be used for the air-flow input air inlet 101, be used for gas outlet 102, dust collecting, first ash bucket 201 and the housing 1 of air-flow output.Wherein, air inlet 101 places housing 1 one ends, and gas outlet 102 places housing 1 other end, is provided with cathode line and positive plate (cathode line adds the negative high voltage electricity, positive plate ground connection) for generation of the first electric field S0 in the housing 1.First ash bucket 201 places first electric field S0 below.Simultaneously, the first electric field S0 rear (housing 1 is near in 102 1 ends of gas outlet) also are provided with the powder dust adsorbing device for generation of second electric field.
In the present embodiment one, powder dust adsorbing device comprises: be used for the netted dust collector pole of absorption dust and be used for driving the driving mechanism that netted dust collector pole moves.Wherein, netted dust collector pole is fixedlyed connected with driving mechanism, and is horizontally placed on housing 1 afterbody along housing 1 width, and is perpendicular with airflow direction (level from left to right), and netted dust collector pole can realize blocking the circulating face of air-flow.Simultaneously, netted dust collector pole ground connection.Driving mechanism is fixedlyed connected with housing 1.Dust collecting places the driving mechanism bottom, can realize in the course of work collecting in the netted dust collector pole adsorbing dust.
In the present embodiment one, netted dust collector pole comprises: several square steel meshes 2, suitable square fixed mount 3 and several quadras 4 of several and square steel mesh 2 shapes.Wherein, fixed mount 3 is double-decker, and steel mesh 2 places between fixed mount 3 double-deckers, and realizes that by screw threads for fastening mechanism 9 the two edge is fastening.Simultaneously, fixed mount 3 is horizontally arranged in the quadra 4 successively, and fixedlys connected with it.Quadra 4 is fixedlyed connected with the chain group by its edge, and each quadra 4 equidistantly is arranged above and below successively, between the adjacent quadra 4 about the edge be connected mutually.
Preferably, screw threads for fastening mechanism 9 is that bolt connects or screw connects.
Preferably, the mesh aperture of steel mesh 2 is 0.25～4mm.
In the present embodiment one, first chain wheel set comprises: first sprocket wheel 401, second sprocket wheel 402.Second chain wheel set comprises: the 3rd sprocket wheel 403, the 4th sprocket wheel 404.Wherein, first sprocket wheel 401, second sprocket wheel 402 are passed in first rotating shaft 301 successively, and fixedly connected with it respectively.The 3rd sprocket wheel 403, the 4th sprocket wheel 404 are passed in second rotating shaft 302 successively, and fixedly connected with it respectively.Simultaneously, chain group top respectively with first sprocket wheel 401, second sprocket wheel, 402 active links.Chain group bottom respectively with the 3rd sprocket wheel 403, the 4th sprocket wheel 404 active links.
In the present embodiment one, the central shaft of sprocket wheel 401-404 and rotating shaft 301-302 all are in the same perpendicular, and this perpendicular and airflow direction are perpendicular.
In the present embodiment one, the chain group comprises: first chain 501, second chain 502.Wherein, first chain, 501 tops and first sprocket wheel, 401 outer gear active links, its bottom and the 3rd sprocket wheel 403 outer gear active links.Second chain, 502 tops and second sprocket wheel, 402 outer gear active links, its bottom and the 4th sprocket wheel 404 outer gear active links.Simultaneously, quadra 4 is fixedlyed connected with first chain 501 by one lateral edges position, and (fixed mount 3 is vertical mutually with chain 501-502) fixedlyed connected in its opposite side edge with second chain 502.
In the present embodiment one, dust collecting comprises: second ash bucket 202, rotation deashing brush 6, holder and link.Wherein, the rotation deashing is brushed 6 two ends and is fixedlyed connected with link respectively by described holder, and described rotation deashing brush 6 can be realized relatively rotating with described holder.Second rotating shaft, 302 two ends flexibly connect with link respectively.Rotation deashing brush 6 places second ash bucket, 202 inside by link.Second ash bucket 202 is fixedlyed connected with described housing bottom, and is positioned at described second rotating shaft 302 belows, and can realize collecting the dust that adsorbs in the netted dust collector pole by rotation deashing brush 6.
In the present embodiment one, link comprises: first support 601, second support 602.First support, 601 1 ends are fixedlyed connected with second support 602, and the two is vertical mutually.Simultaneously, first support, 601 axial positions are provided with chute 8, the second rotating shafts 302 ends and can realize sliding up and down by chute 8.And the rotation deashing is brushed 6 two ends and is fixedlyed connected with second support 602 respectively by described holder.Present embodiment one is in practical work process, when wearing and tearing take place or expand with heat and contract with cold in chain 501-502, second rotating shaft 302 can move up and down because of elongating or shortening of chain 501-502, and namely first rotating shaft 302 and chain 501-502 can realize that by chute 8 chain 501-502 is in tensioning state always under the self gravitation effect.
In the present embodiment one, powder dust adsorbing device is at least one group.1 close gas outlet, 102 1 ends are array distribution to every group of powder dust adsorbing device successively along airflow direction (level from left to right) in housing, and the powder dust adsorbing device bottom is provided with above-mentioned dust collecting.Wherein, the group of powder dust adsorbing device is counted set basis first electric field S0 outlet flue dust condition, housing 1 trailing space is big or small and final emission request is determined.
In the present embodiment one, the place ahead of steel mesh 2 or rear can arrange that also corona wire 7(determines whether to set up corona wire 7 according to the charged situation of dust).Preferably, corona wire is a discharge lines (as prickle wire) or line discharge lines (as astroid) or face discharge lines (as the circle line).
In the present embodiment one, also can adopt the regional electric field of many groups to be array distribution (as first area electric field S01, second area electric field S02, the 3rd regional electric field S03) successively along the airflow direction among the first electric field S0.At this moment, powder dust adsorbing device can place between arbitrary adjacent area electric field, and other component relations are same as described above.
In the present embodiment one, between the adjacent fixed frame 3 or can reserve the slit of certain width between the adjacent frame 4, in the actual job process, reserving gaps can play the effect that resistance falls in earial drainage when deashing breaks down, and is safe and reliable to operation, and maintenance cost is low.
Embodiment two
Referring to Fig. 2-7, present embodiment two provides another kind of netted mobile dust collector pole electric cleaner.Present embodiment two arranges the position at electric cleaner technology among the embodiment one by changing powder dust adsorbing device, namely sets up at least one group of powder dust adsorbing device in gas outlet 102, comprises rotating shaft 301-302, sprocket wheel 401-404, reaches chain 501-502.And it is identical among each assembly annexation and the embodiment one.Simultaneously, baffle plate 10 is set up in the powder dust adsorbing device bottom, makes rotation deashing brush be positioned at non-flow area.All the other arrange all identical with embodiment one.
Among embodiment one provided by the invention, the embodiment two, when housing 1 transverse width is excessive (a networking shape dust collector pole can't block the airflow area), can adopt two groups of (or many groups) powder dust adsorbing devices to be set up in parallel in housing 1 transverse width direction.
Referring to Fig. 8, the present invention also provides a kind of dust collection method based on mobile dust collector pole electric cleaner among embodiment one, the embodiment two, to support technical problem to be solved by this invention.Specifically comprise:
Step S1001: dust enters the first electric field S0 with air-flow, and dust is charged in the first electric field S0, realizes dust absorption for the first time 1001;
Step S1002: the residue dust after the dust absorption for the first time enters second electric field with air-flow, is at first caught by steel mesh 2 windward sides, realizes dust absorption for the second time 1002;
Step S1003: the residue dust after the dust absorption for the second time passes steel mesh 2 mesh with air-flow, realizes dust absorption for the third time 1003 in the process of passing;
Step S1004: the residue dust after the dust absorption for the third time passes steel mesh 2 with air-flow, and the 4th dust absorption 1004 is realized in the vortex that enters the formation of steel mesh 2 lee faces;
Step S1005: driving mechanism moves to the dust collecting that is positioned at non-flow area with steel mesh 2, and by placing the rotation deashing brush 6 in the dust collecting that the dust of absorption on the steel mesh 2 is removed, the dust that is eliminated directly falls into second ash bucket 202 1005.
Wherein, step S1001 is used for capturing most dust; Fine dust (the 90%th, the PM that few part is escaped from the first electric field S0
10) enter second electric field that is constituted by steel mesh 2; Because dust is consistent with suffered electric field force direction with the direction of motion of air-flow, so dust is partly caught by the windward side of netted dust collector pole (steel mesh 2) at a high speed to netted dust collector pole motion.Simultaneously, most fine dusts of not caught by steel mesh 2 windward sides among the step S1002 can only (aperture be 0.25～4mm) to go out by steel mesh 2 mesh.According to the Coulomb's law formula F
1,2=kq
1Q
2/ R
2As can be known, compare the suffered electric field force F of dust with the traditional electrical deduster
1,2To increase 10000 times in theory.Be that a large amount of fine dusts were adsorbed onto on the steel mesh 2 by moment when dust was by mesh among the step S1003.Among the step S1004, because the perturbation action of 2 pairs of air-flows of steel mesh makes near the vortex that forms of its lee face, under the effect of eddy current, major part is captured by steel mesh 2 lee faces through step S1003 fine dust at large.Steel mesh 2 is moved to the dust collecting that is positioned at non-flow area (second rotating shaft, 302 belows) by driving mechanism among the step S1005, by placing the rotation deashing brush 6 in the dust collecting dust of absorption on the steel mesh 2 is removed, the dust that is eliminated directly falls into second ash bucket 202, can realize thoroughly avoiding the anti-corona problem of dust secondary fly-up and high resistivity dust.
A kind of netted mobile dust collector pole electric cleaner provided by the invention and dust collection method, by adopting one or more groups netted dust collector pole of (housing 1 afterbody) horizontally set behind the first electric field S0, given full play to that steel mesh 2 utilizes multiple dust removal mechanism such as inertial collision, interception, diffusion effect and Electrostatic Absorption to capture the effect of fine dust in the netted dust collector pole.Its beneficial effect is as described below:
1., because air-flow enters normally subparticle of the entrained dust of second electric field, dust is consistent with suffered electric field force direction with the direction of motion of air-flow simultaneously, therefore to netted dust collector pole motion, can by the windward side of steel mesh 2 be caught at a high speed by the part dust for dust;
2., most fine dusts of not caught by steel mesh 2 windward sides, go out by steel mesh 2 mesh; Because the aperture is 0.25～4mm, according to the Coulomb's law formula F
1,2=kq
1Q
2/ R
2As can be known, positive and negative charge q in the electric field
1With q
2The more little Coulomb force of distance R is just more big; And the ultimate range between grit and the netted dust collector pole is that 2mm(mesh aperture maximum is made as 4mm among the present invention), namely with the traditional electrical deduster in grit compare with the ultimate range 200mm of dust collecting pole plate, electric field force F1,2 will increase 10000 times in theory! Greatly brought into play the effect of statcoulomb power.Be fine dust when passing through mesh, can be adsorbed onto on the net by moment;
3., the disturbance of 2 pairs of air-flows of horizontal steel mesh forms the vortex near making its lee face, under the synergy of eddy current and Coulomb force, the fine dust major part of having passed steel mesh 2 is captured by the steel mesh lee face;
4., the present invention can export the group number that flue dust condition, electric cleaner trailing space size and final emission request determine to arrange netted mobile dust collector pole, enhancing dust removing effects according to first electric field;
5., by netted dust collector pole is installed on the driving mechanism, dust collecting is arranged on non-flow area, realized the automatically continuous deashing of netted dust collector pole, remain the net that gathers dust " totally ", thoroughly avoid the anti-corona problem of dust secondary fly-up and high resistivity dust, guarantee the high capture rate to fine dust;
6., the present invention is with " dust absorption net is divided into piece " (adopting some steel meshes 2, some fixed mounts 3 and some frameworks 4), being conducive to deduster maximizes, can change separately after certain piece steel mesh 2 breakage, the installation and maintenance maintenance is convenient, slit between every steel mesh 2 can be played earial drainage and be fallen drag effect when deashing breaks down, safe and reliable to operation, maintenance cost is low;
8., the present invention in steel mesh 2 the place aheads or after can set up corona wire 7 according to the charged situation of dust, realize to improve the dust catching probability;
9., the present invention carries when imitate transforming at old electric cleaner, can not increase the place newly, do not change former electric field structure, has advantages such as improvement cost is low, short construction period.
A kind of netted mobile dust collector pole electric cleaner provided by the invention and dust collection method combine numerous advantages such as transverse electrode technology, screen cloth electrostatic precipitation technology, traveling electrode technology, have possessed PM
10Advantage such as following fine dust efficiency of dust collection height, system's running resistance are low.Simultaneously, the present invention is used for carrying of traditional electrical deduster and imitates transformation, can reduce traditional electrical deduster outlet dust emission concentration more than 40%, guarantees to satisfy the qualified discharge requirement; And do not change former electric field structure after transforming, not newly-increased place, not newly-increased running resistance, shorten the transformation cycle greatly, reduce improvement cost, can effectively solve the variety of issue that runs in current numerous industry electric precipitation transformation process, also overcome the obstacle of the existing further energy-saving and emission-reduction of cleaner of industries such as current steel mill, metallurgy, power station, building materials, chemical industry, satisfied the environmental requirement of increasingly stringent, realized real low concentration (＜10mg/Nm
3) discharging.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to example the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. netted mobile dust collector pole electric cleaner comprises: be used for the air-flow input air inlet (101), be used for gas outlet (102), dust collecting, first ash bucket (201) and the housing (1) of air-flow output; Described air inlet (101) places described housing (1) one end, and described gas outlet (102) place described housing (1) other end, is provided with cathode line and positive plate for generation of first electric field (S0) in the described housing (1); Described first ash bucket (201) places described first electric field (S0) below; It is characterized in that:
Described first electric field (S0) rear is provided with the powder dust adsorbing device for generation of second electric field;
Described powder dust adsorbing device comprises: netted dust collector pole and the driving mechanism that moves for the described netted dust collector pole of driving;
Described netted dust collector pole is fixedlyed connected with described driving mechanism, and described netted dust collector pole and airflow direction are perpendicular; Described netted dust collector pole can realize blocking the circulating face of described air-flow;
Described driving mechanism is fixedlyed connected with described housing (1) or described gas outlet (102);
Described dust collecting places described driving mechanism bottom, can realize collecting the dust of described netted dust collector pole absorption.
2. netted mobile dust collector pole electric cleaner according to claim 1 is characterized in that:
Described driving mechanism comprises: first rotating shaft (301), second rotating shaft (302), first chain wheel set, second chain wheel set and chain group;
Described first chain wheel set is passed in described first rotating shaft (301), and fixedlys connected with the described first chain wheel set middle sprocket;
Described second chain wheel set is passed in described second rotating shaft (302), and fixedlys connected with the described second chain wheel set middle sprocket;
Described first chain wheel set, described second chain wheel set can realize synchronous rotation by described chain group;
Described netted dust collector pole is fixedlyed connected with described chain group;
Described first rotating shaft (301) is passed described housing (1) and is connected with drive motors (5);
Described drive motors (5) can be realized driving described first rotating shaft (301) by connecting gear and rotate, and then drives described first chain wheel set, described chain group, described second chain wheel set realization synchronous operation successively by described first rotating shaft (301).
3. netted mobile dust collector pole electric cleaner according to claim 2 is characterized in that:
Described netted dust collector pole comprises: several square steel meshes (2), suitable square fixed mount (3) and several quadras (4) of several and described square steel mesh (2) shape;
Described fixed mount (3) is double-decker, and described steel mesh (2) places between described fixed mount (3) double-decker, and realizes that by retention mechanism (9) the two edge is fastening;
Described fixed mount (3) is horizontally arranged in the described quadra (4) successively, and fixedlys connected with described quadra;
Described quadra (4) is fixedlyed connected with described chain group by its edge, and each described quadra (4) equidistantly is arranged above and below successively;
The mesh aperture of described steel mesh (2) is 0.25～4mm.
4. netted mobile dust collector pole electric cleaner according to claim 3 is characterized in that:
Described first chain wheel set comprises: first sprocket wheel (401), second sprocket wheel (402);
Described second chain wheel set comprises: the 3rd sprocket wheel (403), the 4th sprocket wheel (404);
Described first sprocket wheel (401), described second sprocket wheel (402) are passed in described first rotating shaft (301) successively, and fixedly connected with described first sprocket wheel (401), described second sprocket wheel (402) respectively;
Described the 3rd sprocket wheel (403), described the 4th sprocket wheel (404) are passed in described second rotating shaft (302) successively, and fixedly connected with described the 3rd sprocket wheel (403), described the 4th sprocket wheel (404) respectively;
Described chain group top respectively with described first sprocket wheel (401), described second sprocket wheel (402) active link;
Described chain group bottom respectively with described the 3rd sprocket wheel (403), described the 4th sprocket wheel (404) active link;
Described first sprocket wheel (401) central shaft, described second sprocket wheel (402) central shaft, described the 3rd sprocket wheel (403) central shaft, described the 4th sprocket wheel (404) central shaft, described first rotating shaft (301) and described second rotating shaft (302) all are in the same perpendicular, and described perpendicular and described airflow direction are perpendicular.
5. netted mobile dust collector pole electric cleaner according to claim 4 is characterized in that:
Described chain group comprises: first chain (501), second chain (502);
Described first chain (501) top and described first sprocket wheel (401) active link, described first chain (501) bottom and described the 3rd sprocket wheel (403) active link;
Described second chain (502) top and described second sprocket wheel (402) active link, described second chain (502) bottom and described the 4th sprocket wheel (404) active link;
Described quadra (4) is fixedlyed connected with described first chain (501) by one lateral edges position, fixedlys connected with described second chain (502) in described quadra (4) opposite side edge.
6. according to each described netted mobile dust collector pole electric cleaner of claim 2-5, it is characterized in that:
Described dust collecting comprises: second ash bucket (202), rotation deashing brush (6), holder and link;
Fixedly connected with described link respectively by described holder in described rotation deashing brush (6) two ends, and described rotation deashing is brushed (6) and described holder can be realized relatively rotating, and then realize removing the dust of netted dust collector pole absorption;
Described second rotating shaft (302) two ends flexibly connect with described link respectively;
Described rotation deashing brush (6) places described second ash bucket (202) inside by described link;
Described second ash bucket (202) is fixedlyed connected with described housing bottom, and is positioned at described second rotating shaft (302) below.
7. netted mobile dust collector pole electric cleaner according to claim 6 is characterized in that:
Described link comprises: first support (601), second support (602);
Described first support (601) is fixedlyed connected with described second support (602), and the two is vertical mutually;
Described first support (601) axially is provided with chute (8) in the position, and described second rotating shaft (302) end can realize sliding up and down by described chute (8);
Fixedly connected with described second support (602) respectively by described holder in described rotation deashing brush (6) two ends.
8. netted mobile dust collector pole electric cleaner according to claim 7 is characterized in that:
The place ahead of described steel mesh (2) or rear are furnished with corona wire (7);
Described corona wire (7) is a discharge lines, line discharge lines or face discharge lines.
9. netted mobile dust collector pole electric cleaner according to claim 1 is characterized in that:
Described powder dust adsorbing device is at least one group;
Every group of described powder dust adsorbing device is array distribution successively along described airflow direction, and described powder dust adsorbing device bottom is provided with described dust collecting.
10. the dust collection method based on the described netted mobile dust collector pole electric cleaner of claim 1 is characterized in that, comprising:
Dust enters first electric field (S0) with air-flow, and dust is charged in first electric field (S0), realizes dust absorption for the first time;
Residue dust after the dust absorption for the first time enters second electric field with air-flow, is at first caught by steel mesh (2) windward side, realizes dust absorption for the second time;
Residue dust after the dust absorption for the second time passes steel mesh (2) mesh with air-flow, realizes dust absorption for the third time in the process of passing;
Residue dust after the dust absorption for the third time passes steel mesh (2) with air-flow, and the 4th dust absorption is realized in the vortex that enters the formation of steel mesh (2) lee face;
Driving mechanism moves to the dust collecting that is positioned at non-flow area with steel mesh (2), is removed by the dust that the rotation deashing brush (6) that places in the dust collecting is gone up absorption with steel mesh (2), and the dust that is eliminated directly falls into second ash bucket (202).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310165888.XA CN103240181B (en) | 2013-05-08 | 2013-05-08 | A kind of netted mobile dust collector pole electric cleaner and dust collection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310165888.XA CN103240181B (en) | 2013-05-08 | 2013-05-08 | A kind of netted mobile dust collector pole electric cleaner and dust collection method |
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| CN103240181A true CN103240181A (en) | 2013-08-14 |
| CN103240181B CN103240181B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108031556A (en) * | 2018-01-10 | 2018-05-15 | 厦门绿洋环境技术股份有限公司 | One kind rotation pole plate electric dust collector and electric precipitator |
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|---|---|
| CN103240181B (en) | 2016-01-20 |
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Address after: 430000 room 01, 13 / F, unit 7, skirt building, phase II R & D building, No. 3, Guanggu Avenue, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee after: WUHAN JINGHONG ECOLOGICAL ENVIRONMENT Co.,Ltd. Address before: 430061 floor 15, building a, 2008 New Changjiang Plaza, No. 2, Youyi Avenue, Wuchang District, Wuhan City, Hubei Province Patentee before: KINGHOME ENVIRONMENTAL TECHNOLOGIES Co.,Ltd. |
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