CN204768066U - Biomass boiler environmental protection dust collector - Google Patents
Biomass boiler environmental protection dust collector Download PDFInfo
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- CN204768066U CN204768066U CN201520358775.6U CN201520358775U CN204768066U CN 204768066 U CN204768066 U CN 204768066U CN 201520358775 U CN201520358775 U CN 201520358775U CN 204768066 U CN204768066 U CN 204768066U
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Abstract
The utility model relates to a boiler dust removal technical field especially relates to biomass boiler environmental protection dust collector, including consecutive whirlwind dust removal unit and sack dust removal unit, whirlwind dust removal unit includes first barrel, first air inlet, first gas outlet, spiral vortex sheet and first ash bucket, sack dust removal unit includes second barrel, second air inlet, second gas outlet, dust removal subassembly, rotating assembly and second ash bucket, first gas outlet is linked together through pipeline and second air inlet, the dust removal subassembly includes that mounting panel, sack and cover locate the cage in the sack, and the equipartition has a plurality of tuyere on the barrel inner wall, and the central line of tuyere and the center of sack are at same horizontal plane, the inside pressure sensor that all is equipped with of first ash bucket and second ash bucket, lateral wall set up the pressure port that is linked together with the inner chamber, the inner wall be equipped with be used for static elimination and mars prevent the static metal sheet, the lower part is equipped with the unloading valve. The utility model discloses long service life, dust collection efficiency be high, and can avoid the potential safety hazard.
Description
Technical field
The utility model relates to boiler dusting technical field, particularly relates to a kind of biomass boiler Environmental-protection dust removal device.
Background technology
Along with world energy sources consumption increases severely, the fossil energy resource consumptions such as coal, oil, natural gas are rapid, and ecological environment constantly worsens, and particularly greenhouse gas emission causes increasingly serious Global climate change, and the sustainable development of human society is subject to serious threat.Because regenerative resource comprises water energy, biomass energy, wind energy, solar energy, geothermal energy and ocean energy etc., have resource potential large, environmental pollution is low, can the feature such as continuous utilization, becomes the important energy source being conducive to harmony between man and nature development.
Biomass energy will become following regenerative resource pith, biomass fuel is as raw material using agricultural refuse, through techniques such as pulverizing, mixing, extruding, oven dry, make various shaping (as bulk, graininess etc.), a kind of Novel clean-fuel that can directly burn.Compared to traditional fossil fuel, it has the convenience that feeds intake, reduces labor strength, improve work situation, heat output of fuel is large, purity is high, do not corrode boiler, can service life of prolonged boiler, can environmental pollution be reduced, after burning, grey quarrel seldom, greatly reduces place, the reduction muck removal expense of stacking coal quarrel, ashes after burning are the high high-quality organic potassic fertilizers of grade, and the advantages such as recoverable, are thus widely used in all kinds of boiler.
Although belong to clean fuel, but the flue dust after the biomass fuel combustion in boiler still can cause certain pollution, as the carbon dioxide in flue dust can aggravate greenhouse effects, sulphur phosphorous oxides a small amount of in flue dust can cause atmosphere pollution, dust in flue dust can cause dust pollution, stimulate human respiratory tract, cause respiratory tract system disease etc.Therefore discharge again after must processing the waste gas after biomass combustion, to reduce the pollution to environment.
Bag-type dust is high owing to having efficiency of dust collection, and can trap particle diameter and be greater than the fine dusts of 0.3 micron, use flexibly, structure is simple, stable, initial cost is few, easy to maintenance, there is not the advantage such as sewage disposal or mud conditioning problem, be widely used in the dedusting of biomass boiler smoke exhaust pipe.
But traditional sack cleaner has the following disadvantages: first, and service life is short, containing a large amount of heats in flue dust, temperature is higher, passes into sack cleaner and carries out dedusting, and high temperature can cause cloth bag to damage, and causes sack cleaner short for service life; Secondly, efficiency of dust collection is low, when flue dust is by cloth bag, because air-flow is always in cloth bag, and ever-increasing air-flow below, make the pressure in cloth bag become comparatively large, be easy to, by large for the support of the filtration mouth of cloth bag, cause efficiency of dust collection to decline; 3rd, there is potential safety hazard, after sack cleaner uses a period of time, along with air-flow in cylindrical shell strengthens, gas pressure increases, and easily blasts, and there is a large amount of flammable and explosive substance in the dust separated in flue dust, a large amount of flammable and explosive substances is gathered in ash bucket, can produce electrostatic and Mars, easily security incident occur.
Utility model content
For solving the problem, the utility model provides a kind of long service life, efficiency of dust collection high and can avoid potential safety hazard, is conducive to the biomass boiler Environmental-protection dust removal device of energy-conserving and environment-protective.
The technical scheme that the utility model adopts is: biomass boiler Environmental-protection dust removal device, comprises the cyclone dust removal unit and bag-type dust unit that are connected successively; The first ash bucket that described cyclone dust removal unit comprises the first cylindrical shell, is positioned at the first air inlet of the first barrel outer surface, is positioned at first gas outlet at the first cylindrical shell top, is positioned at the spirality blade of the first inner barrel, is connected to the first cylindrical shell bottom; Described bag-type dust unit comprises the second cylindrical shell, is positioned at the second air inlet of the second cylindrical shell middle and lower part, is positioned at second gas outlet at the second cylindrical shell top, is positioned at the dedusting assembly of the second inner barrel, drives the rotary components of dedusting assembly rotation and be connected to the second ash bucket of the second cylindrical shell bottom; Described first gas outlet is connected with the second air inlet by pipeline; Described dedusting assembly comprises rotating installing plate, several cages being installed on the cloth bag on installing plate and being sheathed on cloth bag inside of being connected to cylinder inboard wall, described cloth bag is up big and down small cone, the shape of described cage and the mating shapes of described cloth bag, described cylinder inboard wall is evenly equipped with several tuyeres, the center line of described tuyere and the center of described cloth bag are in same level; Described rotary components comprises the electric rotating machine and motor cabinet for mounting rotary electric machine that the rotating shaft, the drive shaft that are connected to installing plate rotate; Described first ash bucket inside is provided with the first pressure sensor, first ash bucket sidewall offers the first pressure port with the first ash bucket intracavity inter-connection, first ash bucket inwall is provided with the first antistatic metallic plate for eliminating electrostatic and Mars, first ash bucket bottom is provided with the first unloading valve, and the first ash bucket lateral wall is also provided with the first vibrating motor for driving the second ash bucket vibration; Described second ash bucket inside is provided with the second pressure sensor, second ash bucket sidewall offers the second pressure port with the second ash bucket intracavity inter-connection, second ash bucket inwall is provided with the second antistatic metallic plate for eliminating electrostatic and Mars, second ash bucket bottom is provided with the second unloading valve, and the second ash bucket lateral wall is also provided with the second vibrating motor for driving the second ash bucket vibration.
Being improved to further technique scheme, described first cylindrical shell and the second cylindrical shell are cylinder, described first ash bucket and the second ash bucket are cone, described first air inlet and the second air inlet are arranged along the first cylindrical shell and the second cylindrical shell tangential direction respectively, and described first gas outlet and the second gas outlet are arranged along the first cylindrical shell and the second body centre axis direction respectively.
Being improved to further technique scheme, described cyclone dust removal unit also comprises cooling package, described cooling package comprises the pervious bed being arranged at the first cylinder inner surface, be arranged at the cooling water channel between the first cylindrical shell and pervious bed, be arranged at several shower nozzles towards described blade on cooling water channel, be arranged at the cold water inlet on the first cylindrical shell and hot water outlet, described cooling water channel and cold water inlet, hot water outlet is connected, described hot water outlet is positioned at below cold water inlet, described cold water inlet is connected with external source, described hot water outlet is connected with extraneous heating equipment, described blade outermost end contacts with pervious bed, described blade center line overlaps with body centre axis.
Being improved to further technique scheme, described first air inlet and the second air inlet are all provided with heat exchanger.
Being improved to further technique scheme, described first cylindrical shell and the first ash bucket are fixed by the first support, described first support is provided with the first damping spring, and described second cylindrical shell and the second ash bucket are fixed by the second support, and described second support is provided with the second damping spring.
Being improved to further technique scheme, the back cut diameter of described cloth bag is 100 ~ 300mm, and lower port diameter is 50 ~ 250mm, and the spacing between two described cloth bags is 100 ~ 400mm.
Being improved to further technique scheme, described second inner barrel is provided with dust board, and described dust board is positioned at above rotary components.
Being improved to further technique scheme, described blade is the dextrorotation blade structure of the band angle of attack.
Being improved to further technique scheme, described blade outer surface has refractory masses.
Being improved to further technique scheme, described first cylindrical shell and the second cylindrical shell include skin bonded to each other and liner, and described skin is carbon steel layer, and described liner is anticorrosive coat.
The beneficial effects of the utility model are:
1, on the one hand, efficiency of dust collection is high, be conducive to energy-conserving and environment-protective, first rough dusting is carried out by cyclone dust removal unit, degree of depth dedusting is carried out again by bag-type dust unit, by twice dedusting, effectively can remove the dust in flue dust, make the cleaning gas of discharging through the second gas outlet, efficiency of dust collection is high.Second aspect, potential safety hazard can be avoided, first ash bucket and the second ash bucket inwall are provided with the first antistatic metallic plate for eliminating electrostatic and Mars and the second antistatic metallic plate, effectively can remove the electrostatic in the first ash bucket and the second ash bucket and Mars, solve the problem that in cylindrical shell and ash bucket, dust is inflammable and explosive, improve the security performance of cyclone dust removal unit and bag-type dust unit, and be provided with the first pressure sensor and the real-time monitor force of the second pressure sensor, when in the first ash bucket and the second ash bucket, dust increases gradually, during pressure increase, by opening the first pressure port and the second pressure port carries out pressure release, prevent from blasting because pressure is excessive in the first ash bucket and the second ash bucket, avoid potential safety hazard.The third aspect, long service life, by reducing the moisture in the temperature of high-temperature smoke, removing flue dust, preventing flue dust from scalding cloth bag, causing cloth bag to cohere, being conducive to improving cloth bag service life, thus extending the service life of dust arrester.
2, in bag-type dust unit, rotary components drives dedusting assembly to rotate, and the dust being bonded in cloth bag surface and inwall is fallen down, prevents cloth bag from gathering dust, improve efficiency of dust collection; Meanwhile, in cloth bag, be provided with the cage propping up cloth bag, prevent cloth bag too soft and folding, bending, ensure the ventilation fluency of cloth bag, improve efficiency of dust collection further; Cloth bag is up big and down small cone, and area of section continues to increase from bottom to up, and air velocity is less along gradient on cloth bag length direction, and air flow method is comparatively even, improves efficiency of dust collection further; Gas outlet is provided with screen pack, again filters the gas being about to discharge, and to remove a small amount of dust remaining in gas, improves efficiency of dust collection further; Cylinder inboard wall is provided with tuyere, is dried to cloth bag by tuyere, promotes that the dust being bonded in cloth bag surface and inwall falls down further, prevents cloth bag from gathering dust, improve efficiency of dust collection.
3, flue dust enters the first cylindrical shell and the second inner barrel along the first cylindrical shell and the second cylindrical shell tangential direction, through cyclone dust removal and bag-type dust flue gas centrally axis direction discharge the first cylindrical shell and the second cylindrical shell, such flue dust can form stronger intake swirl in the first cylindrical shell and the second cylindrical shell, be conducive to flue dust fully to contact with cloth bag with blade, improve efficiency of dust collection.
4, cyclone dust removal unit is provided with cooling package, cooling water in cooling water channel is infiltrated by pervious bed, shower nozzle is also to pervious bed ejection cooling water simultaneously, cooling water fully contacts with flue gas with high temperature dust, there is heat exchange, cooling water temperature raises, components vaporize is steam, dust and flue-gas temperature reduce, the dust that temperature reduces declines under gravity gradually, fall into cone first ash bucket, flue gas is discharged by first gas outlet at the first cylindrical shell top, the steam of vaporization is mixed into dust inside, add the humidity of dust, improve the cohesion ability of dust, contribute to improving efficiency of dust collection.
5, the first air inlet and the second air inlet are all provided with heat exchanger, heat in flue dust can be reclaimed, the heat reclaimed can do the preheating of soft water etc., be conducive to energy-conserving and environment-protective, and after heat exchanger, flue dust temperature declines, and can not burn out cloth bag, is conducive to the service life of improving cloth bag.
6, the back cut diameter of cloth bag is 100 ~ 300mm, and lower port diameter is 50 ~ 250mm, and the spacing between two cloth bags is 100 ~ 400mm, when in dusty gas from bottom to up motion process, air velocity is little along gradient on cloth bag length direction, and air flow method is even, improves efficiency of dust collection further.
7, the second inner barrel is provided with dust board, when above the flue gas rising rotary components after final dusting, by the residue dust in dust board removing flue gas, improves efficiency of dust collection further.
8, blade is the dextrorotation blade structure of the band angle of attack, is conducive to improving dedusting and cooling effectiveness.Blade outer surface has refractory masses, prevents blade from being scorched by high-temperature smoke on the one hand, is conducive to the service life of improving cleaner, on the other hand, refractory masses can increase the frictional force on dust and blade surface, dust is declined fast, improves efficiency of dust collection further.
9, the first cylindrical shell and the second cylindrical shell include skin bonded to each other and liner, skin is carbon steel layer, intensity is high, cost is low, applied widely, be conducive to reducing cloth production cost, liner is anticorrosive coat, can prevent the first cylindrical shell and the second cylindrical shell from being corroded by the corrosive gas in flue dust, extend the service life of cleaner further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model biomass boiler Environmental-protection dust removal device;
Fig. 2 is the structural representation of the cyclone dust removal unit of the utility model biomass boiler Environmental-protection dust removal device;
Fig. 3 is the cross sectional representation of the cyclone dust removal unit of the utility model biomass boiler Environmental-protection dust removal device;
Fig. 4 is the structural representation of the bag-type dust unit of the utility model biomass boiler Environmental-protection dust removal device;
Fig. 5 is the cross sectional representation of the second cylindrical shell of the utility model biomass boiler Environmental-protection dust removal device;
Fig. 6 is the structural representation of the dedusting assembly of the utility model biomass boiler Environmental-protection dust removal device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, be the structural representation of the utility model biomass boiler Environmental-protection dust removal device.Biomass boiler Environmental-protection dust removal device 100, comprises the cyclone dust removal unit 10 and bag-type dust unit 20 that are connected successively.
As shown in Figures 2 and 3, structural representation and the cross sectional representation of the cyclone dust removal unit of the utility model biomass boiler Environmental-protection dust removal device is respectively.The first ash bucket 105 that cyclone dust removal unit 10 comprises the first cylindrical shell 101, is positioned at the first air inlet 102 of the first cylindrical shell 101 outer surface, is positioned at first gas outlet 103 at the first cylindrical shell 101 top, is positioned at the spirality blade 104 of the first cylindrical shell 101 inside, is connected to the first cylindrical shell 101 bottom.Blade 104 is dextrorotation blade 104 structure of the band angle of attack, and outer surface has refractory masses.First cylindrical shell 101 and the first ash bucket 105 are fixed by the first support 106, the first support 106 are provided with the first damping spring 161.
Cyclone dust removal unit 10 also comprises cooling package 107, cooling package 107 comprises the pervious bed 171 being arranged at the first cylindrical shell 101 inner surface, be arranged at the cooling water channel 172 between the first cylindrical shell 101 and pervious bed 171, be arranged at several on cooling water channel 172 towards the shower nozzle 173 of blade 104, be arranged at the cold water inlet 174 on the first cylindrical shell 101 and hot water outlet 175, cooling water channel 172 and cold water inlet 174, hot water outlet 175 is connected, hot water outlet 175 is positioned at below cold water inlet 174, cold water inlet 174 is connected with external source, hot water outlet 175 is connected with extraneous heating equipment, blade 104 outermost end contacts with pervious bed 171, blade 104 center line and the first cylindrical shell 101 central axes.
First ash bucket 105 inside is provided with the first pressure sensor 151, first ash bucket 105 sidewall offers the first pressure port 152 with the first ash bucket 105 intracavity inter-connection, first ash bucket 105 inwall is provided with the first antistatic metallic plate 153 for eliminating electrostatic and Mars, first ash bucket 105 bottom be provided with the first unloading valve 154, first ash bucket 105 lateral wall be also provided with for drive first ash bucket 105 vibrate the first vibrating motor 155.
As shown in Figure 4, be the structural representation of the bag-type dust unit of the utility model biomass boiler Environmental-protection dust removal device.Bag-type dust unit 20 comprises the second cylindrical shell 201, is positioned at the second air inlet 202 of the second cylindrical shell 201 middle and lower part, is positioned at second gas outlet 203 at the second cylindrical shell 201 top, is positioned at the dedusting assembly 204 of the second cylindrical shell 201 inside, drives the rotary components 205 of dedusting assembly 204 rotation, is connected to the second ash bucket 206 of the second cylindrical shell 201 bottom.
As shown in Figure 5, be the structural representation of the second cylindrical shell of the utility model biomass boiler Environmental-protection dust removal device.Second cylindrical shell 201 inside is provided with dust board 211, and dust board 211 is positioned at above rotary components 205.Second cylindrical shell 201 and the second ash bucket 206 are fixed by the second support 207, the second support 207 are provided with the second damping spring 271.
Dedusting assembly 204 comprises rotating installing plate 241, several cages 243 being installed on the cloth bag 242 on installing plate 241 and being sheathed on cloth bag 242 inside of being connected to cylinder inboard wall, cloth bag 242 is up big and down small cone, the shape of cage 243 and the mating shapes of cloth bag 242, second cylindrical shell 201 inwall is evenly equipped with several tuyeres 212, and the center line of tuyere 212 and the center of cloth bag 242 are in same level.The back cut diameter of cloth bag 242 is 100 ~ 300mm, and lower port diameter is 50 ~ 250mm, and the spacing between two cloth bags 242 is 100 ~ 400mm.
Rotary components 205 comprises the electric rotating machine 252 and motor cabinet 253 for mounting rotary electric machine 252 that the rotating shaft 251, the drive shaft 251 that are connected to installing plate 241 rotate.
Second ash bucket 206 inside is provided with the second pressure sensor 261, second ash bucket 206 sidewall offers the second pressure port 262 with the second ash bucket 206 intracavity inter-connection, second ash bucket 206 inwall is provided with the second antistatic metallic plate 263 for eliminating electrostatic and Mars, second ash bucket 206 bottom be provided with the second unloading valve 264, second ash bucket 206 lateral wall be also provided with for drive second ash bucket 206 vibrate the second vibrating motor 265.
First gas outlet 103 is connected with the second air inlet 202 by pipeline, and the first air inlet 102 and the second air inlet 202 are all provided with heat exchanger.
First cylindrical shell 101 and the second cylindrical shell 201 are cylinder, first ash bucket 105 and the second ash bucket 206 are cone, first air inlet 102 and the second air inlet 202 are arranged along the first cylindrical shell 101 and the second cylindrical shell 201 tangential direction respectively, and the first gas outlet 103 and the second gas outlet 203 are arranged along the first cylindrical shell 101 and the second cylindrical shell 201 central axial direction respectively.
First cylindrical shell 101 and the second cylindrical shell 201 include outer 101a(201a bonded to each other) and liner 101b(201b), outer 101a(201a) be carbon steel layer, liner 101b(201b) be anticorrosive coat.
The beneficial effects of the utility model are:
First, high-temperature smoke enters the first air inlet 102 by admission line, with heat exchanger generation heat exchange in the first air inlet 102, the first cylindrical shell 101 is tangentially entered again inner by the first air inlet 102, when whirlwind along spirality blade 104 formation rises, under the influence of centrifugal force, dust in flue dust is separated with flue gas, flue dust is thrown toward cylinder inner surface, flue gas moves from below to up along blade 104, cooling water in first cylindrical shell 101 inner cooling water road 172 is infiltrated by pervious bed 171, shower nozzle 173 also sprays cooling water to pervious bed 171 simultaneously, cooling water fully contacts with flue gas with high temperature dust, there is heat exchange, cooling water temperature raises, components vaporize is steam, dust and flue-gas temperature reduce again.The steam of vaporization enters dust inside through pervious bed 171, adds the humidity of dust, improves the cohesion ability of dust, contributes to improving efficiency of dust collection.The dust that temperature reduces declines under gravity gradually, and fall into the first ash bucket 105, flue gas is discharged in the axial direction by first gas outlet 103 at the first cylindrical shell 101 top under the effect of air-introduced machine.Then, flue gas through rough dusting enters the second air inlet 202 by admission line, heat exchange is carried out through heat exchanger, it is inner that the dry flue dust that temperature reduces enters the second cylindrical shell 201 along the second cylindrical shell 201 tangential direction again, under the effect of air-introduced machine, move from bottom to up, by dispersion flows under section gear of deflection plate, flue dust enters in cloth bag 242 outside each cloth bag 242, in the filtration of cloth bag 242, impact, interception, under the effect such as diffusion and electrostatic attraction, micronic dust is affixed between cloth bag 242 gap, thus dust is separated from flue dust, and the flue gas after purification enters air by cloth bag 242 from inner side, the dust sticked on cloth bag 242 increases gradually, cause in cloth bag 242, outer both sides gas pressure increases thereupon, after pressure reduction reaches setting value, pulse valve is opened, automatically pass in the second ash bucket 206 that dust shakes off to the second cylindrical shell 201 by high-voltage pulse compressed air inside cloth bag 242, the assembly of dedusting simultaneously 204 rotates under the effect of rotary components 205, prevent dust adhesion on cloth bag 242.Along with in the first ash bucket 105 and the second ash bucket 206, dust increases gradually, pressure increases gradually, when the force value of pressure sensor monitoring reaches threshold value, open the first pressure port 152 and the second pressure port 262 carries out pressure release, prevent from blasting because pressure is excessive in the first ash bucket 105 and the second ash bucket 206.
On the one hand, efficiency of dust collection is high, be conducive to energy-conserving and environment-protective, first rough dusting is carried out by cyclone dust removal unit 10, degree of depth dedusting is carried out again by bag-type dust unit 20, by twice dedusting, effectively can remove the dust in flue dust, make the cleaning gas of discharging through the second gas outlet 203, efficiency of dust collection is high.Second aspect, potential safety hazard can be avoided, first ash bucket 105 and the second ash bucket 206 inwall are provided with the first antistatic metallic plate 153 and the second antistatic metallic plate 263 for eliminating electrostatic and Mars, effectively can remove the electrostatic in the first ash bucket 105 and the second ash bucket 206 and Mars, solve the problem that in cylindrical shell and ash bucket, dust is inflammable and explosive, improve the security performance of cyclone dust removal unit 10 and bag-type dust unit 20, and be provided with the first pressure sensor 151 and the second pressure sensor 261 monitor force in real time, when in the first ash bucket 105 and the second ash bucket 206, dust increases gradually, during pressure increase, by opening the first pressure port 152 and the second pressure port 262 carries out pressure release, prevent from blasting because pressure is excessive in the first ash bucket 105 and the second ash bucket 206, avoid potential safety hazard.The third aspect, long service life, by reducing the moisture in the temperature of high-temperature smoke, removing flue dust, preventing flue dust from scalding cloth bag 242, causing cloth bag 242 to cohere, being conducive to improving cloth bag 242 service life, thus extending the service life of dust arrester 100.
In bag-type dust unit 20, rotary components 205 drives dedusting assembly 204 to rotate, and the dust being bonded in cloth bag 242 surface and inwall is fallen down, prevents cloth bag 242 from gathering dust, improve efficiency of dust collection; Meanwhile, in cloth bag 242, be provided with the cage 243 propping up cloth bag 242, prevent cloth bag 242 too soft and folding, bending, ensure the ventilation fluency of cloth bag 242, improve efficiency of dust collection further; Cloth bag 242 is up big and down small cone, and area of section continues to increase from bottom to up, and air velocity is less along gradient on cloth bag 242 length direction, and air flow method is comparatively even, improves efficiency of dust collection further; Gas outlet is provided with screen pack, again filters the gas being about to discharge, and to remove a small amount of dust remaining in gas, improves efficiency of dust collection further; Cylinder inboard wall is provided with tuyere 212, dries to cloth bag 242 by tuyere 212, promotes that the dust being bonded in cloth bag 242 surface and inwall falls down further, prevents cloth bag 242 from gathering dust, improve efficiency of dust collection.
Flue dust enters the first cylindrical shell 101 along the first cylindrical shell 101 and the second cylindrical shell 201 tangential direction and the second cylindrical shell 201 is inner, through cyclone dust removal and cloth bag 242 dedusting flue gas centrally axis direction discharge the first cylindrical shell 101 and the second cylindrical shell 201, such flue dust can form stronger intake swirl in the first cylindrical shell 101 and the second cylindrical shell 201, be conducive to flue dust fully to contact with cloth bag 242 with blade 104, improve efficiency of dust collection.
Cyclone dust removal unit 10 is provided with cooling package 107, cooling water in cooling water channel 172 is infiltrated by pervious bed 171, shower nozzle 173 also sprays cooling water to pervious bed 171 simultaneously, cooling water fully contacts with flue gas with high temperature dust, there is heat exchange, cooling water temperature raises, components vaporize is steam, dust and flue-gas temperature reduce, the dust that temperature reduces declines under gravity gradually, fall into cone first ash bucket 105, flue gas is discharged by first gas outlet 103 at the first cylindrical shell 101 top, the steam of vaporization is mixed into dust inside, add the humidity of dust, improve the cohesion ability of dust, contribute to improving efficiency of dust collection.
First air inlet 102 and the second air inlet 202 are all provided with heat exchanger, heat in flue dust can be reclaimed, the heat reclaimed can do the preheating of soft water etc., be conducive to energy-conserving and environment-protective, and after heat exchanger, flue dust temperature declines, and can not burn out cloth bag 242, is conducive to the service life of improving cloth bag 242.
The back cut diameter of cloth bag 242 is 100 ~ 300mm, lower port diameter is 50 ~ 250mm, spacing between two cloth bags 242 is 100 ~ 400mm, when in dusty gas from bottom to up motion process, air velocity is little along gradient on cloth bag 242 length direction, air flow method is even, improves efficiency of dust collection further.
Second cylindrical shell 201 inside is provided with dust board 211, when above the flue gas rising rotary components 205 after final dusting, is removed the residue dust in flue gas, improve efficiency of dust collection further by dust board 211.
Blade 104 is dextrorotation blade 104 structure of the band angle of attack, is conducive to improving dedusting and cooling effectiveness.Blade 104 outer surface has refractory masses, prevents blade 104 from being scorched by high-temperature smoke on the one hand, is conducive to the service life of improving cleaner, on the other hand, refractory masses can increase the frictional force on dust and blade 104 surface, dust is declined fast, improves efficiency of dust collection further.
First cylindrical shell 101 and the second cylindrical shell 201 include outer 101a(201a bonded to each other) and liner 101b(201b), outer 101a(201a) be carbon steel layer, intensity is high, cost is low, applied widely, be conducive to reducing cloth production cost, liner 101b(201b) be anticorrosive coat, can prevent the first cylindrical shell 101 and the second cylindrical shell 201 from being corroded by the corrosive gas in flue dust, extend the service life of cleaner further.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. biomass boiler Environmental-protection dust removal device, is characterized in that: comprise the cyclone dust removal unit and bag-type dust unit that are connected successively; The first ash bucket that described cyclone dust removal unit comprises the first cylindrical shell, is positioned at the first air inlet of the first barrel outer surface, is positioned at first gas outlet at the first cylindrical shell top, is positioned at the spirality blade of the first inner barrel, is connected to the first cylindrical shell bottom; Described bag-type dust unit comprises the second cylindrical shell, is positioned at the second air inlet of the second cylindrical shell middle and lower part, is positioned at second gas outlet at the second cylindrical shell top, is positioned at the dedusting assembly of the second inner barrel, drives the rotary components of dedusting assembly rotation and be connected to the second ash bucket of the second cylindrical shell bottom; Described first gas outlet is connected with the second air inlet by pipeline; Described dedusting assembly comprises rotating installing plate, several cages being installed on the cloth bag on installing plate and being sheathed on cloth bag inside of being connected to cylinder inboard wall, described cloth bag is up big and down small cone, the shape of described cage and the mating shapes of described cloth bag, described cylinder inboard wall is evenly equipped with several tuyeres, the center line of described tuyere and the center of described cloth bag are in same level; Described rotary components comprises the electric rotating machine and motor cabinet for mounting rotary electric machine that the rotating shaft, the drive shaft that are connected to installing plate rotate; Described first ash bucket inside is provided with the first pressure sensor, first ash bucket sidewall offers the first pressure port with the first ash bucket intracavity inter-connection, first ash bucket inwall is provided with the first antistatic metallic plate for eliminating electrostatic and Mars, first ash bucket bottom is provided with the first unloading valve, and the first ash bucket lateral wall is also provided with the first vibrating motor for driving the second ash bucket vibration; Described second ash bucket inside is provided with the second pressure sensor, second ash bucket sidewall offers the second pressure port with the second ash bucket intracavity inter-connection, second ash bucket inwall is provided with the second antistatic metallic plate for eliminating electrostatic and Mars, second ash bucket bottom is provided with the second unloading valve, and the second ash bucket lateral wall is also provided with the second vibrating motor for driving the second ash bucket vibration.
2. biomass boiler Environmental-protection dust removal device according to claim 1, it is characterized in that: described first cylindrical shell and the second cylindrical shell are cylinder, described first ash bucket and the second ash bucket are cone, described first air inlet and the second air inlet are arranged along the first cylindrical shell and the second cylindrical shell tangential direction respectively, and described first gas outlet and the second gas outlet are arranged along the first cylindrical shell and the second body centre axis direction respectively.
3. biomass boiler Environmental-protection dust removal device according to claim 2, it is characterized in that: described cyclone dust removal unit also comprises cooling package, described cooling package comprises the pervious bed being arranged at the first cylinder inner surface, be arranged at the cooling water channel between the first cylindrical shell and pervious bed, be arranged at several shower nozzles towards described blade on cooling water channel, be arranged at the cold water inlet on the first cylindrical shell and hot water outlet, described cooling water channel and cold water inlet, hot water outlet is connected, described hot water outlet is positioned at below cold water inlet, described cold water inlet is connected with external source, described hot water outlet is connected with extraneous heating equipment, described blade outermost end contacts with pervious bed, described blade center line overlaps with body centre axis.
4. biomass boiler Environmental-protection dust removal device according to claim 3, is characterized in that: described first air inlet and the second air inlet are all provided with heat exchanger.
5. biomass boiler Environmental-protection dust removal device according to claim 4, it is characterized in that: described first cylindrical shell and the first ash bucket are fixed by the first support, described first support is provided with the first damping spring, described second cylindrical shell and the second ash bucket are fixed by the second support, and described second support is provided with the second damping spring.
6. biomass boiler Environmental-protection dust removal device according to claim 5, is characterized in that: the back cut diameter of described cloth bag is 100 ~ 300mm, and lower port diameter is 50 ~ 250mm, and the spacing between two described cloth bags is 100 ~ 400mm.
7. biomass boiler Environmental-protection dust removal device according to claim 6, is characterized in that: described second inner barrel is provided with dust board, and described dust board is positioned at above rotary components.
8. biomass boiler Environmental-protection dust removal device according to claim 7, is characterized in that: described blade is the dextrorotation blade structure of the band angle of attack.
9. biomass boiler Environmental-protection dust removal device according to claim 8, is characterized in that: described blade outer surface has refractory masses.
10. the biomass boiler Environmental-protection dust removal device according to any one of claim 1-9, is characterized in that: described first cylindrical shell and the second cylindrical shell include skin bonded to each other and liner, and described skin is carbon steel layer, and described liner is anticorrosive coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358775.6U CN204768066U (en) | 2015-05-29 | 2015-05-29 | Biomass boiler environmental protection dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139809A (en) * | 2016-08-22 | 2016-11-23 | 李志伟 | A kind of dust separation device |
| CN107583400A (en) * | 2017-10-31 | 2018-01-16 | 三峡大学 | Fire prevention dust pelletizing system |
| CN107617299A (en) * | 2017-10-31 | 2018-01-23 | 湖北力帝机床股份有限公司 | Disintegrating machine fire prevention dust pelletizing system |
| CN107744709A (en) * | 2017-07-15 | 2018-03-02 | 广西海禾环保科技有限公司 | The energy-efficient solidifying formula electric-bag complex dust collector of vortex flow spray |
| CN108554108A (en) * | 2018-06-29 | 2018-09-21 | 靳瑞 | A kind of multistage filtering deduster |
| CN108854293A (en) * | 2018-06-25 | 2018-11-23 | 界首市华盛塑料机械有限公司 | Dust-extraction unit is used in a kind of electronic equipment processing |
| CN111359351A (en) * | 2020-03-13 | 2020-07-03 | 重庆德沃木制品加工有限公司 | Manufacturing process of boiler dust collection device |
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2015
- 2015-05-29 CN CN201520358775.6U patent/CN204768066U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139809A (en) * | 2016-08-22 | 2016-11-23 | 李志伟 | A kind of dust separation device |
| CN107744709A (en) * | 2017-07-15 | 2018-03-02 | 广西海禾环保科技有限公司 | The energy-efficient solidifying formula electric-bag complex dust collector of vortex flow spray |
| CN107744709B (en) * | 2017-07-15 | 2023-01-24 | 广西海禾环保科技有限公司 | High-efficiency energy-saving vortex flow spraying type electric bag composite dust remover |
| CN107583400A (en) * | 2017-10-31 | 2018-01-16 | 三峡大学 | Fire prevention dust pelletizing system |
| CN107617299A (en) * | 2017-10-31 | 2018-01-23 | 湖北力帝机床股份有限公司 | Disintegrating machine fire prevention dust pelletizing system |
| CN107583400B (en) * | 2017-10-31 | 2023-05-02 | 三峡大学 | Fireproof dust removal system |
| CN108854293A (en) * | 2018-06-25 | 2018-11-23 | 界首市华盛塑料机械有限公司 | Dust-extraction unit is used in a kind of electronic equipment processing |
| CN108554108A (en) * | 2018-06-29 | 2018-09-21 | 靳瑞 | A kind of multistage filtering deduster |
| CN111359351A (en) * | 2020-03-13 | 2020-07-03 | 重庆德沃木制品加工有限公司 | Manufacturing process of boiler dust collection device |
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Address after: Hsinchu Songshan Lake high tech Industrial Development Zone of Dongguan City, Guangdong province 523808 No. 4 Building No. 5, third new Guangdong 4, 5 Patentee after: Environmental protection Limited by Share Ltd Address before: Hsinchu Songshan Lake high tech Industrial Development Zone of Dongguan City, Guangdong province 523000 No. 4 new bamboo building No. 5 Patentee before: Guangzhou Loongzheng Energy Saving Environmental Protection Technology Co., Ltd. |
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Granted publication date: 20151118 Termination date: 20190529 |
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