CN105363576A - Double-layer type whirlwind dust remover and dust removing method - Google Patents
Double-layer type whirlwind dust remover and dust removing method Download PDFInfo
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- CN105363576A CN105363576A CN201510782010.XA CN201510782010A CN105363576A CN 105363576 A CN105363576 A CN 105363576A CN 201510782010 A CN201510782010 A CN 201510782010A CN 105363576 A CN105363576 A CN 105363576A
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Abstract
The invention relates to whirlwind separation dust removers which belong to the technical field of environment-friendly equipment and discloses a double-layer type whirlwind dust remover and a dust removing method. The dust remover comprises a double-layer dust remover barrel. A horizontal dust-containing gas inlet pipe is arranged on one side of the upper portion of the double-layer dust remover barrel. An exhaust pipe used for exhausting clean gases is arranged at the top of the double-layer dust remover barrel along a central line. An annular conical solid body is arranged at the bottom of the exhaust pipe. Cavities formed between the horizontal upper portion of the annular conical solid body and the inner wall of the upper portion barrel inside the double-layer dust remover barrel are upper vortex air flow cavities, and a cavity formed between the horizontal bottom of the annular conical solid body and inner wall of the lower portion barrel of the double-layer dust remover barrel is an outer vortex air flow cavity. An inner vortex air flow cavity formed in the center of the outer vortex air flow cavity is communicated with the exhaust pipe for exhausting the clean gases. The dust remover is suitable for working in excessive-dust environment; materials are repeatedly filtered through a vacuum belt and a screen type inner sleeve and fine dust particles are removed, and thus dust particles are prevented from being exhausted through the exhaust pipe along with ascending inner vortex air flow; the dust removing efficiency is high.
Description
Technical field
The present invention relates to separation cyclone scrubber and belong to technical field of environment protection equipment, particularly relate to a kind of double deck type cyclone dust collector and dust collection method that work under being applicable to high dust atmosphere.
Background technology
Cyclone dust collectors are dust arresters that grit is separated by the centrifugal force utilizing swirling eddy to produce from conjunction dirt air-flow.It is simple that it has structure, and small volume, do not need special auxiliary device, cost is lower. the advantages such as resistance is medium, movement-less part in device, and operating maintenance is convenient.Shortcoming is that efficiency of dust collection is low, particularly removes fine dust particles.Be mainly manifested in:
1, the overwhelming majority entering the swirling eddy of cyclone dust collectors is justified by oneself simplified along wall, move bottom cone from top to bottom in the shape of a spiral, form the outer vortex dust-contained airflow declined, another fraction air-flow is entered from air inlet stream, then to the flowing of cyclone dust collectors top cover place, then along blast pipe lateral current downflow, when reaching blast pipe lower end, namely counter steer together being discharged from blast pipe with the inside vortex air-flow risen, being dispersed in grit wherein also in company with being pulled away.
2, when outward turning air descend arrives a certain position, cone lower end, namely with same direction of rotation in the middle part of deduster by lower counter steer, continue shape motion of spinning, form inside vortex air-flow.The powder dust particle of fraction collection at large also has small part fine particle to be rolled by the ascending air of interior vortex in mixed flow region, because the rotating speed of inward eddy is low, rises very fast, is not enough to a dust and throws to outer wall again, dust will be taken out of blast pipe.
The efficiency of dust collection of cyclone dust collectors is low, and mainly dust has two regions of escaping in deduster, and this is also the main cause that dust removal efficiency in cyclone cleaner is low.
Summary of the invention
In order to overcome the deficiency in background technology, the invention provides a kind of double deck type cyclone dust collector and dust collection method.
In order to realize foregoing invention object, the present invention adopts technical scheme as follows:
A kind of double deck type cyclone dust collector, comprise: double-deck deduster cylindrical shell, the side on double-deck deduster cylindrical shell top is provided with the dusty gas inlet tube 1 of level, the top of double-deck deduster cylindrical shell is provided with the blast pipe 2 of row's clean gas that centrally line is arranged, be positioned at the top of ring conic solid 3 level arranged bottom the blast pipe of double-deck deduster cylindrical shell, the cavity formed with the top cylinder inboard wall in double-deck deduster cylindrical shell is the upper swirl flow cavity 4 of the dusty gas that level enters; The bottom of ring conic solid 3 level arranged bottom blast pipe, the cavity formed with the lower cylinder inwall of double-deck deduster cylindrical shell is the outer swirl flow cavity 5 of swirl flow; The interior swirl flow cavity 6 that the center of outer swirl flow cavity 5 is formed communicates with the blast pipe 2 of row's clean gas; The skin of described double-deck deduster cylindrical shell is connected and composed by outer cylinder body 7 and outer centrum 8, and the internal layer of double-deck deduster cylindrical shell is connected and composed by screen mesh type inner barrel 9 and centrum 10 in screen mesh type; The outer bottom of double-deck deduster cylindrical shell is provided with the ash bucket 11 of ash discharging hole 12.
A kind of double deck type cyclone dust collector, the internal layer of described double-deck deduster cylindrical shell is that screen mesh type inner sleeve is connected and composed by screen mesh type inner barrel 9 and centrum 10 in screen mesh type, in screen mesh type, the plagioclase of centrum 10 and the plagioclase of the outer field outer centrum 8 of double-deck deduster cylindrical shell are with high, or in screen mesh type, the plagioclase of centrum 10 and the plagioclase of the outer field outer centrum 8 of double-deck deduster cylindrical shell are at least the length of the plagioclase 1/3rd of the outer field outer centrum 8 of double-deck deduster cylindrical shell; Described screen mesh type inner sleeve is made by steel, macromolecular material or expanded metal lath, punching net.
A kind of double deck type cyclone dust collector, the skin of described double-deck deduster cylindrical shell is deduster cylindrical shell overcoat, and deduster cylindrical shell overcoat and screen mesh type inner sleeve be height together, screen mesh type inner sleeve or be at least 1/3 deduster cylindrical shell overcoat; Distance between deduster cylindrical shell overcoat and screen mesh type inner sleeve 20 ~ 200 millimeters.
A kind of double deck type cyclone dust collector, puts the mesh being evenly equipped with screen cloth examination inner sleeve in described screen mesh type, the mesh of screen cloth examination inner sleeve is outwards less than 0 ~ 45 ° by the tangential direction in flow rotation direction, and downward 0 ° ~ 30 ° angles are arranged simultaneously.
A kind of double deck type cyclone dust collector is concave configuration body 10.1 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve.
A kind of double deck type cyclone dust collector, be open-celled structure body 10.2 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve, the diameter of perforate is less than ash releasing tube caliber 80%.
A kind of double deck type cyclone dust collector is projection structure 10.3 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve.
A kind of double deck type cyclone dust collector, described in be positioned at blast pipe lower end ring conic solid 3 be trumpet type outer shroud, ring conic solid 3 is 10 ° to 45 ° with the tapering of blast pipe; The outward flange of ring conic solid 3 and vacuum belt distance L=10 ~ 150 millimeter of blast pipe inwall.
A dust collection method for double deck type cyclone dust collector, its step is as follows:
1), when dusty gas enters in double deck type cyclone dust collector by dusty gas inlet tube 1 air inlet level, the screen mesh type inner barrel 9 inwall tangential direction along double-deck deduster barrel inner enters upper swirl flow cavity 4; Air-flow becomes circular motion from rectilinear motion, and the overwhelming majority of swirling eddy along deduster inwall twist downwards, flow towards cone;
2), in upper swirl flow cavity 4 formed upper swirl flow, enter outer swirl flow cavity 5 along centrum 10 inwall in screen mesh type inner barrel 9 inwall, screen mesh type; Meanwhile, in upper swirl flow cavity 4, the dust of dusty gas enters the interlayer of double-deck deduster cylindrical shell through screen mesh type inner barrel 9 inwall; Namely from another fraction air-flow that dust-laden gas inlet pipe 1 air inlet flows into, then to the flowing of cyclone dust collectors top cover place, then along blast pipe lateral current downflow;
3) the upper swirl flow, formed in upper swirl flow cavity 4, when reaching blast pipe lower end, the ring conic solid 3 of one 10 ° ~ 45 ° of trumpet type outer shrouds that blast pipe 2 lower end running into row's clean gas increases, the vacuum belt that width is L is defined between the outer eddy airstream that the rotation made is downward and rotation inside vortex air-flow upwards, rotate downward dust-contained airflow and solid particulate matter increasing rotating speed, thrown to the inwall of double-deck deduster cylindrical shell, thus avoided the inside vortex air-flow that is inverted upwards together from the discharge of blast pipe 2;
4), the outer swirl flow that formed of swirl flow cavity 5 outside, along the bottom vortex of screen mesh type centrum, form inside vortex air-flow upwards, along interior swirl flow cavity 6 vortex upwards, discharged by the blast pipe 2 arranging clean gas; Meanwhile, the interlayer that dust centrum 10 inwall in screen mesh type inner barrel 9 inwall, screen mesh type of the dusty gas in outer swirl flow cavity 5 enters double-deck deduster cylindrical shell is discharged through the ash bucket 11 of ash discharging hole 12;
Namely dusty gas produces centrifugal force in rotary course, powder dust particle relative density being greater than gas gets rid of the internal face to double-deck deduster cylindrical shell, powder dust particle, once contact with the internal face of double-deck deduster cylindrical shell, just loses radial inertial force and momentum under being close to and gravity fall along wall;
5), rotate along screen cloth examination inner sleeve wall the solid particulate matter of whereabouts, under the effect of eccentricity, filtered by the mesh that downward 0 ° ~ 30 ° angles of tangent line 0 ~ 45 that screen cloth examination inner sleeve presses flow rotation direction are arranged, enter into the space that deduster overcoat and screen cloth try to have in the middle of inner sleeve 20 ~ 200 millimeters, under gravity, to ash bucket 11 diffluence of centrum bottom; The solid particulate matter be not filtered, because of conical contraction, the tangential velocity of solid particulate matter improves constantly, and suffered by powder dust particle, centrifugal force is also constantly strengthened, and filtration relative density being greater than to the dust of gas also can be strengthened; Through the dust-contained airflow repeatedly filtered, when arriving bottom centrum, to reach clean gas degree, shape motion of spinning 10,1 by lower counter steer, is continued in flow rotation direction bottom deduster, rotational gas flow in forming, finally discharges from the blast pipe 2 of row's clean gas.
Owing to adopting technical scheme as above, the present invention has following superiority:
A kind of double deck type cyclone dust collector and dust collection method, mainly set up assembly in two dust region of can escaping, stop dust to be escaped.This double deck type cyclone dust collector adopts blast pipe lower end to add the ring conic solid 3 of one 10 ° ~ 45 ° of outer small slides, the vacuum belt that width is L is defined between the outer eddy airstream that the rotation made is downward and rotation inside vortex air-flow upwards, rotate downward dust-contained airflow and solid particulate matter increasing rotating speed, thrown to deduster inwall, thus avoid the inside vortex air-flow that is inverted upwards together from blast pipe discharge may.Centrum due to deduster adds outer tube and screen cloth examination inner sleeve and screen cloth and tries centrum in inner barrel and screen cloth examination.Under the effect of eccentricity, repeatedly filtered by screen cloth examination inner sleeve, the material be filtered enters into and tries, in inner sleeve, to enter the solid particulate matter of inner sleeve with deduster overcoat and screen cloth, under gravity, to the ash bucket diffluence of centrum bottom.The solid particulate matter be not filtered, because of conical contraction, the tangential velocity of solid particulate matter improves constantly, and suffered by powder dust particle, centrifugal force is also constantly strengthened, and filtration relative density being greater than to the dust of gas also can be strengthened.Through the dust-contained airflow repeatedly filtered, when arriving bottom centrum, to reach basic clean gas degree, air-flow presses original direction of rotation bottom deduster by lower counter steer, continue shape motion of spinning, rotational gas flow in forming, finally discharges from modified blast pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of double deck type cyclone dust collector;
Fig. 2 is the structural representation that the blast pipe of row's clean gas is connected with ring conic solid;
Fig. 3 be double deck type cyclone dust collector screen mesh type centrum bottom be the structural representation of opening;
Fig. 4 be double deck type cyclone dust collector screen mesh type centrum bottom be the structural representation of epirelief;
Fig. 5 be double deck type cyclone dust collector screen mesh type centrum bottom be recessed structural representation;
Fig. 6 is the cross-sectional view of double deck type cyclone dust collector.
In figure: dusty gas inlet tube 1, the blast pipe 2 of row's clean gas, ring conic solid 3, upper swirl flow cavity 4, outer swirl flow cavity 5, interior swirl flow cavity 6, outer cylinder body 7, outer centrum 8, screen mesh type inner barrel 9, screen mesh type centrum 10, concave configuration 10.1 bottom screen mesh type centrum, screen mesh type centrum bottom opening structure 10.2, convex configuration 10.3 bottom screen mesh type centrum, ash bucket 11, ash discharging hole 12, row's clean gas 13.
Detailed description of the invention
As Fig. 1, 2, 3, 4, 5, shown in 6, as Fig. 1, 2, 3, 4, 5, shown in 6, a kind of double deck type cyclone dust collector, comprise: double-deck deduster cylindrical shell, the side on double-deck deduster cylindrical shell top is provided with the dusty gas inlet tube 1 of level, the top of double-deck deduster cylindrical shell is provided with the blast pipe 2 of row's clean gas that centrally line is arranged, be positioned at the top of ring conic solid 3 level arranged bottom the blast pipe of double-deck deduster cylindrical shell, the cavity formed with the top cylinder inboard wall in double-deck deduster cylindrical shell is the upper swirl flow cavity 4 of the dusty gas that level enters, the bottom of ring conic solid 3 level arranged bottom blast pipe, the cavity formed with the lower cylinder inwall of double-deck deduster cylindrical shell is the outer swirl flow cavity 5 of swirl flow, the interior swirl flow cavity 6 that the center of outer swirl flow cavity 5 is formed communicates with the blast pipe 2 of row's clean gas, the skin of described double-deck deduster cylindrical shell is connected and composed by outer cylinder body 7 and outer centrum 8, and the internal layer of double-deck deduster cylindrical shell is connected and composed by screen mesh type inner barrel 9 and centrum 10 in screen mesh type, the outer bottom of double-deck deduster cylindrical shell is provided with the ash bucket 11 of ash discharging hole 12.
The internal layer of described double-deck deduster cylindrical shell is that screen mesh type inner sleeve is connected and composed by screen mesh type inner barrel 9 and centrum 10 in screen mesh type, in screen mesh type, the plagioclase of centrum 10 and the plagioclase of the outer field outer centrum 8 of double-deck deduster cylindrical shell are with high, or in screen mesh type, the plagioclase of centrum 10 and the plagioclase of the outer field outer centrum 8 of double-deck deduster cylindrical shell are at least the length of the plagioclase 1/3rd of the outer field outer centrum 8 of double-deck deduster cylindrical shell; Described screen mesh type inner sleeve is made by steel, macromolecular material or expanded metal lath, punching net.
The skin of described double-deck deduster cylindrical shell is deduster cylindrical shell overcoat, and deduster cylindrical shell overcoat and screen mesh type inner sleeve are with high, screen mesh type inner sleeve or be at least 1/3 deduster cylindrical shell overcoat; Distance between deduster cylindrical shell overcoat and screen mesh type inner sleeve 20 ~ 200 millimeters.
Put the mesh being evenly equipped with screen cloth examination inner sleeve in described screen mesh type, the mesh of screen cloth examination inner sleeve is outwards less than 0 ~ 45 ° by the tangential direction in flow rotation direction, and the simultaneously inclined hole arranged of downward 0 ° ~ 30 ° angles.Be concave configuration body 10.1 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve.
The described ring conic solid 3 being positioned at blast pipe lower end is trumpet type outer shroud, and ring conic solid 3 is 10 ° to 45 ° with the tapering of blast pipe; The outward flange of ring conic solid 3 and vacuum belt distance L=10 ~ 150 millimeter of blast pipe inwall.
A kind of dedusting method of double deck type cyclone dust collector is as follows:
1), when dusty gas enters in double deck type cyclone dust collector by dusty gas inlet tube 1 air inlet level, the screen mesh type inner barrel 9 inwall tangential direction along double-deck deduster barrel inner enters upper swirl flow cavity 4; Air-flow becomes circular motion from rectilinear motion, and the overwhelming majority of swirling eddy flows downwards, towards cone twist along deduster inwall, usually claims this to be outer rotational gas flow.
2), in upper swirl flow cavity 4 formed upper swirl flow, enter outer swirl flow cavity 5 along centrum 10 inwall in screen mesh type inner barrel 9 inwall, screen mesh type; Meanwhile, in upper swirl flow cavity 4, the dust of dusty gas enters the interlayer of double-deck deduster cylindrical shell through screen mesh type inner barrel 9 inwall; Namely from another fraction air-flow that dust-laden gas inlet pipe 1 air inlet flows into, then to the flowing of cyclone dust collectors top cover place, then along blast pipe lateral current downflow;
3) the upper swirl flow, formed in upper swirl flow cavity 4, when reaching blast pipe lower end, the ring conic solid 3 of one 10 ° ~ 45 ° of trumpet type outer shrouds that blast pipe 2 lower end running into row's clean gas increases limits, the rotary rpm of air-flow is accelerated, solid particulate matter in upper eddy airstream, along the angle of blast pipe outer tube wall, accelerates to move to deduster outer wall.Thrown to deduster inwall, due to the shape of exhaust tube wall, the vacuum zone that width is L is defined between the outer eddy airstream that the rotation made is downward and rotation inside vortex air-flow upwards, the existence of region of no pressure, the dust-contained airflow making rotation downward and solid particulate matter strengthen rotating speed, thrown to the inwall of double-deck deduster cylindrical shell, thus avoided the inside vortex air-flow that is inverted upwards together from the discharge of blast pipe 2;
4), the outer swirl flow that formed of swirl flow cavity 5 outside, along the bottom vortex of screen mesh type centrum, form inside vortex air-flow upwards, along interior swirl flow cavity 6 vortex upwards, discharged by the blast pipe 2 arranging clean gas; Meanwhile, the interlayer that dust centrum 10 inwall in screen mesh type inner barrel 9 inwall, screen mesh type of the dusty gas in outer swirl flow cavity 5 enters double-deck deduster cylindrical shell is discharged through the ash bucket 11 of ash discharging hole 12;
Namely dusty gas produces centrifugal force in rotary course, powder dust particle relative density being greater than gas gets rid of the internal face to double-deck deduster cylindrical shell, powder dust particle, once contact with the internal face of double-deck deduster cylindrical shell, just loses radial inertial force and momentum under being close to and gravity fall along wall;
5), rotate along screen cloth examination inner sleeve wall the solid particulate matter of whereabouts, under the effect of eccentricity, the tangent line 0 ~ 45 in flow rotation direction is pressed and the mesh filtration of downward 0 ° ~ 30 ° angles layout by screen cloth examination inner sleeve, enter into the space that deduster overcoat and screen cloth try to have in the middle of inner sleeve 20 ~ 200 millimeters, powder dust particle is once contact with deduster outside wall surface, just lose radial inertial force and momentum under being close to and falling along wall under gravity, ash bucket 11 diffluence eventually to centrum bottom enters ash bucket.The solid particulate matter be not filtered, because of conical contraction, the tangential velocity of solid particulate matter improves constantly, and suffered by powder dust particle, centrifugal force is also constantly strengthened, and filtration relative density being greater than to the dust of gas also can be strengthened; Through the dust-contained airflow repeatedly filtered, when arriving bottom centrum, the dustiness of air-flow is minimum to be down to.To reach clean gas degree, form the inside vortex air-flow of rising to separate with solid particulate matter, the air-flow not reaching solid particulate matter namely with same direction of rotation bottom deduster 10,1 by lower counter steer, continue shape motion of spinning, rotational gas flow in forming, finally discharges from the blast pipe 2 of row's clean gas.Be projection structure 10.3 bottom centrum 10 in the screen mesh type of also available screen cloth examination inner sleeve, deduster screen cloth can be made to try the solid particulate matter that interior jacket wall is not filtered, by the shock of projection structure 10.3, continue broken, solid particulate matter is reached filter completely, enter the interlayer of double-deck deduster cylindrical shell, enter ash bucket in the effect of momentum and gravity to ash bucket 11 diffluence of centrum bottom.
Be open-celled structure body 10.2 bottom centrum 10 in the screen mesh type that described screen cloth also can be adopted to try inner sleeve, the diameter of perforate is less than ash releasing tube caliber 80%.Can make the powder dust particle that deduster outside wall surface contacts and the solid particulate matter be not filtered, the momentum under being close to and the effect of gravity enter ash bucket to ash bucket 11 diffluence of centrum bottom.
Claims (9)
1. a double deck type cyclone dust collector, comprise: double-deck deduster cylindrical shell, the side on double-deck deduster cylindrical shell top is provided with the dusty gas inlet tube 1 of level, the top of double-deck deduster cylindrical shell is provided with the blast pipe 2 of row's clean gas that centrally line is arranged, be positioned at the top of ring conic solid 3 level arranged bottom the blast pipe of double-deck deduster cylindrical shell, the cavity formed with the top cylinder inboard wall in double-deck deduster cylindrical shell is the upper swirl flow cavity 4 of the dusty gas that level enters; The bottom of ring conic solid 3 level arranged bottom blast pipe, the cavity formed with the lower cylinder inwall of double-deck deduster cylindrical shell is the outer swirl flow cavity 5 of swirl flow; The interior swirl flow cavity 6 that the center of outer swirl flow cavity 5 is formed communicates with the blast pipe 2 of row's clean gas; The skin of described double-deck deduster cylindrical shell is connected and composed by outer cylinder body 7 and outer centrum 8, and the internal layer of double-deck deduster cylindrical shell is connected and composed by screen mesh type inner barrel 9 and centrum 10 in screen mesh type; The outer bottom of double-deck deduster cylindrical shell is provided with the ash bucket 11 of ash discharging hole 12.
2. a double deck type cyclone dust collector, the internal layer of described double-deck deduster cylindrical shell is that screen mesh type inner sleeve is connected and composed by screen mesh type inner barrel 9 and centrum 10 in screen mesh type, in screen mesh type, the plagioclase of centrum 10 and the plagioclase of the outer field outer centrum 8 of double-deck deduster cylindrical shell are with high, or in screen mesh type, the plagioclase of centrum 10 and the plagioclase of the outer field outer centrum 8 of double-deck deduster cylindrical shell are at least the length of the plagioclase 1/3rd of the outer field outer centrum 8 of double-deck deduster cylindrical shell; Described screen mesh type inner sleeve is made by steel, macromolecular material or expanded metal lath, punching net.
3. a double deck type cyclone dust collector, the skin of described double-deck deduster cylindrical shell is deduster cylindrical shell overcoat, and deduster cylindrical shell overcoat and screen mesh type inner sleeve are with high, screen mesh type inner sleeve or be at least 1/3 deduster cylindrical shell overcoat; Distance between deduster cylindrical shell overcoat and screen mesh type inner sleeve 20 ~ 200 millimeters.
4. a kind of double deck type cyclone dust collector according to claim 1, the mesh being evenly equipped with screen cloth examination inner sleeve is put in described screen mesh type, the mesh of screen cloth examination inner sleeve is outwards less than 0 ~ 45 ° by the tangential direction in flow rotation direction, and downward 0 ° ~ 30 ° angles are arranged simultaneously.
5. a double deck type cyclone dust collector is concave configuration body 10.1 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve.
6. a kind of double deck type cyclone dust collector according to claim 1, be open-celled structure body 10.2 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve, the diameter of perforate is less than ash releasing tube caliber 80%.
7. a kind of double deck type cyclone dust collector according to claim 1 is projection structure 10.3 bottom centrum 10 in the screen mesh type of described screen cloth examination inner sleeve.
8. a kind of double deck type cyclone dust collector according to claim 1, described in be positioned at the ring conic solid 3 of blast pipe lower end for trumpet type outer shroud, ring conic solid 3 is 10 ° to 45 ° with the tapering of blast pipe; The outward flange of ring conic solid 3 and vacuum belt distance L=10 ~ 150 millimeter of blast pipe inwall.
9. a dust collection method for double deck type cyclone dust collector, its step is as follows:
1), when dusty gas enters in double deck type cyclone dust collector by dusty gas inlet tube 1 air inlet level, the screen mesh type inner barrel 9 inwall tangential direction along double-deck deduster barrel inner enters upper swirl flow cavity 4; Air-flow becomes circular motion from rectilinear motion, and the overwhelming majority of swirling eddy along deduster inwall twist downwards, flow towards cone;
2), in upper swirl flow cavity 4 formed upper swirl flow, enter outer swirl flow cavity 5 along centrum 10 inwall in screen mesh type inner barrel 9 inwall, screen mesh type; Meanwhile, in upper swirl flow cavity 4, the dust of dusty gas enters the interlayer of double-deck deduster cylindrical shell through screen mesh type inner barrel 9 inwall; Namely from another fraction air-flow that dust-laden gas inlet pipe 1 air inlet flows into, then to the flowing of cyclone dust collectors top cover place, then along blast pipe lateral current downflow;
3) the upper swirl flow, formed in upper swirl flow cavity 4, when reaching blast pipe lower end, the ring conic solid 3 of one 10 ° ~ 45 ° of trumpet type outer shrouds that blast pipe 2 lower end running into row's clean gas increases, the vacuum belt that width is L is defined between the outer eddy airstream that the rotation made is downward and rotation inside vortex air-flow upwards, rotate downward dust-contained airflow and solid particulate matter increasing rotating speed, thrown to the inwall of double-deck deduster cylindrical shell, thus avoided the inside vortex air-flow that is inverted upwards together from the discharge of blast pipe 2;
4), the outer swirl flow that formed of swirl flow cavity 5 outside, along the bottom vortex of screen mesh type centrum, form inside vortex air-flow upwards, along interior swirl flow cavity 6 vortex upwards, discharged by the blast pipe 2 arranging clean gas; Meanwhile, the interlayer that dust centrum 10 inwall in screen mesh type inner barrel 9 inwall, screen mesh type of the dusty gas in outer swirl flow cavity 5 enters double-deck deduster cylindrical shell is discharged through the ash bucket 11 of ash discharging hole 12;
Namely dusty gas produces centrifugal force in rotary course, powder dust particle relative density being greater than gas gets rid of the internal face to double-deck deduster cylindrical shell, powder dust particle, once contact with the internal face of double-deck deduster cylindrical shell, just loses radial inertial force and momentum under being close to and gravity fall along wall;
5), rotate along screen cloth examination inner sleeve wall the solid particulate matter of whereabouts, under the effect of eccentricity, filtered by the mesh that downward 0 ° ~ 30 ° angles of tangent line 0 ~ 45 that screen cloth examination inner sleeve presses flow rotation direction are arranged, enter into the space that deduster overcoat and screen cloth try to have in the middle of inner sleeve 20 ~ 200 millimeters, under gravity, to ash bucket 11 diffluence of centrum bottom; The solid particulate matter be not filtered, because of conical contraction, the tangential velocity of solid particulate matter improves constantly, and suffered by powder dust particle, centrifugal force is also constantly strengthened, and filtration relative density being greater than to the dust of gas also can be strengthened; Through the dust-contained airflow repeatedly filtered, when arriving bottom centrum, to reach clean gas degree, shape motion of spinning 10,1 by lower counter steer, is continued in flow rotation direction bottom deduster, rotational gas flow in forming, finally discharges from the blast pipe 2 of row's clean gas.
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| CN201510782010.XA CN105363576A (en) | 2015-11-16 | 2015-11-16 | Double-layer type whirlwind dust remover and dust removing method |
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| CN113289777A (en) * | 2021-05-12 | 2021-08-24 | 成都建筑材料工业设计研究院有限公司 | High-efficient cyclone of double-deck lateral wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113289777A (en) * | 2021-05-12 | 2021-08-24 | 成都建筑材料工业设计研究院有限公司 | High-efficient cyclone of double-deck lateral wall |
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Application publication date: 20160302 |
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