CN109847460A - A kind of turbulent eddy structure capturing large dust particle - Google Patents
A kind of turbulent eddy structure capturing large dust particle Download PDFInfo
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- CN109847460A CN109847460A CN201910289944.8A CN201910289944A CN109847460A CN 109847460 A CN109847460 A CN 109847460A CN 201910289944 A CN201910289944 A CN 201910289944A CN 109847460 A CN109847460 A CN 109847460A
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- chamber body
- smoke
- intake pipe
- upper chamber
- turbulent eddy
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Abstract
The invention discloses a kind of turbulent eddy structures for capturing large dust particle, including smoke-intake pipe, turbulent eddy room, smoke exhaust pipe and grey room, turbulent eddy room includes the trapezoidal upper chamber body in cross section and cross section is in the lower chamber body of inverted trapezoidal, upper chamber body is fixedly connected with lower chamber body and internal connection, smoke-intake pipe is horizontally disposed and connect with upper chamber body side surface, guide plate is provided in smoke-intake pipe, guide plate is arranged diagonally downward, chevron shaped ceiling is provided at the top of upper chamber body, smoke exhaust pipe is arranged at the top of ceiling and is located at smoke-intake pipe side top position, grey room is arranged in lower chamber body bottom；The turbulent eddy structure of capture large dust particle of the invention, it is collided using the locular wall of flue dust and turbulent eddy room in movement, so that the large dust particle in flue dust generates diffusion and collision mechanism, bulky grain flue dust motion profile and movement velocity is caused to reduce, the automatic sedimentation for realizing large dust particle, realizes the capture and removal of large dust particle.
Description
Technical field
The present invention relates to a kind of dedusting structure of large dust particle, more specifically to a kind of capture large dust particle
Turbulent eddy structure.
Background technique
Contain a large amount of minuteness particle in the flue dust that Metallurgical Factory, chemical plant, cement plant, waste incineration, electrolytic aluminium factory discharge,
Minuteness particle enters human body, will cause the diseases such as tracheitis, cardiovascular disease, pulmonary emphysema, asthma.According to the study: minuteness particle is dense
Every increase 10ug/m3 is spent, the death rate of the mankind rises 15%, and wherein deaths from heart disease rate can improve 8% -18%.Develop flue dust to remove
Dirt technology is the direction of recycling economy development, and the fine particle of trapping can be used as the raw material of chemical building material production, is reduced micro-
Fine particle discharge is conducive to protect environment, is beneficial to energy conservation emission reduction, reduces the harm to human body, and existing dedusting technology is main
There are electrostatic precipitation and bag-type dusting.
Electrostatic precipitator technology principle: what Metallurgical Factory, chemical plant, cement plant, waste incineration, electrolytic aluminium factory discharged contains microfine
The flue dust of son enters electrostatic precipitation area, and gas ionizes near cathode under about 10kv voltage, generates a large amount of negative electron,
And it is distributed in corona discharge electrode and is formed about corona zone.These electronics can move under electric field action to anode (dust collector pole)；It is transporting
The dynamic particulate matter that neutralizes collides, and is attached on particulate matter, the size of the electron amount and particulate matter that adhere on particulate matter is at just
Than relationship, particulate matter is bigger, and the number of electrons adhered to thereon is more, and particulate matter can be adsorbed to dust collector pole under electric field action.
Minuteness particle is due to diameter very little, and smaller with the probability of electron collision, institute is electrically charged smaller, and movement velocity is very fast, is not easy electric field
It is adsorbed, 85% or more microparticle is accounted in the flue dust by electrostatic area and is adsorbed on dust collector pole, when dust runs up to certain journey
When spending, the dust accumulated on dust collector pole is fallen into ash bucket using purge modes such as wet type, sound wave, rappings.
Bag type dust removing technology principle, flue dust containing fine grained enter bag-type dusting area, and filter bag carries out dust following
Aspect effect: (1) sieving acts on, and the filtrate mesh of filter is generally 5-50 microns, and dust size is greater than mesh diameter or powder
When dirt is deposited on the dirt intergranular pore between filtrate, dust is i.e. by detention.For new fabric filtrate, since interfibrous gap is long-range
In dust size, so sieving acts on very little, but after filter material surface deposition a large amount of dust forms dust layer, sieving effect is significant
Enhancing.(2) inertial collision acts on, and the general biggish dust of partial size relies primarily on inertial collision effect trapping.When dust-contained airflow connects
When the fiber of nearly filtrate, air-flow will bypass fiber, and biggish particle (being greater than 1 micron) deviates air-flow stream under effect of inertia
Line continues on the original direction of motion and advances, strikes on fiber and be captured, all in the critical line of dust track
Big grit reaches fiber surface and is captured.This inertial collision effect, with the increase of dust size and air-flow velocity
And enhance.Therefore, the air-flow velocity by filtrate is improved, inertial collision effect can be improved.(3) interception function works as dust-contained airflow
It when close to filter media fibre, is streamed compared with dustshot with air-flow, if grit radius is greater than grit center to the distance of fiber edge
When, grit is intercepted due to fiber contacts.(4) diffusion, for being less than l microns of grit, especially less than 0.2 is micro-
The submicron particle of rice, is detached from streamline under the shock of gas molecule, makees Brownian movement as gas molecule, if moving
In the process and fiber contacts, can be separated from air-flow, this effect is known as diffusion, it with flow velocity reduction,
The reduction of fiber and dust diameter and enhance.(5) electrostatic interaction, the filtrate of many fibrages, when air-flow passes through, due to rubbing
Wiping can generate electrostatic phenomenon, at the same dust during transportation also due to friction and other reasons and charge, can filter in this way
Material grit between formed a potential difference, when dust with air-flow tend to filtrate when, due to Coulomb force effect promote dust and
Filter media fibre collides and enhances filtrate and is captured to the adsorption capacity of dust, improves arresting efficiency.
Electricity, bag compound type dust remover are the new dedustings of the one kind to grow up on the basis of electrostatic precipitation and bag-type dusting
There have been many applications in equipment, foreign countries.The country also has more units to use this combined type dedusting technology, Inner Mongol China electricity
Electricity Wu Da steam power plant, China, Wu Da Thermal Power Co., Ltd the electric, bag combined of development and application in 480t/h circulating fluidized bed boiler removes
Dirt device；Xi'an Thermal Power Research Institute Co., Ltd. Liu practices wave etc. and researchs and develops coal-burning power plant's Hybrid Electrostatic-bag Type Dust Collector and a set of
Air flow method testing stand；Tianjin Design Inst. of Cement Industry woods is macro etc. to open electricity, bag dust collector；The net environmentally friendly share of Fujian dragon
Net FE type electric bag compound type dust remover of the dragon of Co., Ltd's production etc..
Either electrostatic precipitation or bag-type dusting can all have certain damage and damage to deduster itself, shorten
The service life of deduster reduces the efficiency of dust collection of deduster, and such issues that solve, preferably flue dust enters in these dedustings
The large dust particle in flue dust is removed before device and dedusting method.
Summary of the invention
The purpose of the present invention is to provide a kind of turbulent eddy structures for capturing large dust particle, utilize the flue dust in movement
It is collided with the locular wall of turbulent eddy room, so that the large dust particle in flue dust generates diffusion and collision mechanism, leads to big
Grain flue dust motion profile and movement velocity reduce, realize the automatic sedimentation of large dust particle, realize large dust particle capture and
Removal.
Technical solution of the present invention it is a kind of capture large dust particle turbulent eddy structure, including smoke-intake pipe, turbulent eddy room,
Smoke exhaust pipe and grey room, the turbulent eddy room includes the trapezoidal upper chamber body in cross section and cross section is in the lower chamber body of inverted trapezoidal,
The upper chamber body is fixedly connected with lower chamber body and internal connection, and the smoke-intake pipe is horizontally disposed and connect with upper chamber body side surface, into
Guide plate is provided in smoke pipe, the guide plate is arranged diagonally downward, is provided with chevron shaped ceiling, the row at the top of upper chamber body
Smoke pipe is arranged at the top of ceiling and is located at smoke-intake pipe side top position, and the ash room is arranged in lower chamber body bottom.
Preferably, the smoke-intake pipe is in horn-like and including big opening end and osculum end, the big opening end upper edge and upper chamber
Body upper edge flushes and is fixedly connected with upper chamber body side surface.
Preferably, the guide plate is fixedly connected with smoke-intake pipe two-phase inner surface sides, and guide plate is close to the end of upper chamber body
On the inside of smoke-intake pipe.
Preferably, the guide plate presents bottom and installs no less than three pieces and mutually parallel, and lowest level guide plate prolongs
Long line is located at lower chamber body bottom upper position, and top layer's guide plate extended line is located at upper chamber body far under the top of smoke-intake pipe side
Portion position and bottom end upper position.
Preferably, the upper chamber body is obliquely installed close to the end face of smoke exhaust pipe to smoke exhaust pipe direction.
Preferably, the smoke exhaust pipe close to smoke-intake pipe lateral distance smoke-intake pipe lateral distance not less than smoke-intake pipe mouth into
Half.
Preferably, the lower chamber body depth is greater than upper chamber body depth, and the ash bucket is connected to lower chamber body bottom and sets vertically
It sets.
Preferably, the smoke-intake pipe is far from smoke exhaust pipe side and upper chamber body end face.
The beneficial effect of technical solution of the present invention is:
A kind of turbulent eddy structure of capture large dust particle of technical solution of the present invention, flue dust enter through smoke-intake pipe, are being oriented to
It is redirected under the action of plate, in the turbulent eddy indoor profile of the flue dust direct collision of high-speed motion, big in flue dust
Grain dust is hit, and the direction of motion changes, and movement velocity reduces, and is finally sunk after multiple impacts in turbulent eddy room
It accumulates, realizes the capture and sedimentation of large dust particle in flue dust, the large dust particle in flue dust is removed, and flue dust is finally from row
Mouth is discharged into subsequent deduster, reduces the damage to deduster, extends the service life of whole dust pelletizing system, and raising removes
The efficiency of dust collection of dirt system entirety.
Detailed description of the invention
A kind of turbulent eddy structural perspective for capturing large dust particle of Fig. 1 present invention,
Fig. 2 is Fig. 1 main view,
Fig. 3 is Fig. 1 left view.
Specific embodiment
For convenient for those skilled in the art understand that technical solution of the present invention, now in conjunction with Figure of description to the technology of the present invention side
Case is described further.
As shown in Figure 1 to Figure 3, a kind of turbulent eddy structure for capturing large dust particle of technical solution of the present invention, including into
Smoke pipe 2, turbulent eddy room 9, smoke exhaust pipe 3 and grey room 6, the turbulent eddy room 9 include the trapezoidal upper chamber body 4 and cross in cross section
Section is in the lower chamber body 5 of inverted trapezoidal, and the upper chamber body 4 is fixedly connected with lower chamber body 5 and internal connection, and the smoke-intake pipe 2 is horizontal
It is arranged and is connect with upper 4 side of chamber body, guide plate 8 is provided in smoke-intake pipe 2, the guide plate 8 is arranged diagonally downward, upper chamber body
4 tops are provided with chevron shaped ceiling 10, and the setting of smoke exhaust pipe 3 is at 10 top of ceiling and is located at 2 side top position of smoke-intake pipe
It sets, the ash room 6 is arranged in lower 5 bottom of chamber body；The trapezoidal upper chamber body 4 in cross section and cross section are in the lower chamber body 5 of inverted trapezoidal
The turbulent eddy room 9 of composition into cigarette side and its opposite flank be inclined surface, work of the flue dust in smoke-intake pipe 2 and guide plate 8
Under, enter turbulent eddy room 9 in certain speed and angle, and with the inclined side collision in turbulent eddy room 9, flue dust is through colliding
Motion profile changes, and movement velocity reduces, and the biggish dust particles of viscosity are settled, and remaining flue dust is discharged to smoke exhaust pipe；
Simultaneously because the setting of smoke exhaust pipe 3 is at 10 top of ceiling and is located at 2 side top position of smoke-intake pipe, i.e. smoke exhaust pipe 3 is not direct
Smoke inlet top position, flue dust bulky grain flue dust after colliding is arranged in smoke-intake pipe 2 to be settled, remaining flue dust rises, still
It can not be expelled directly out, needing to turn round in ceiling is discharged from smoke exhaust pipe 3, thus effectively avoids after colliding wait arrange
Flue dust out carries bulky grain flue dust again or the flue dust just entered in turbulent eddy room 9 is just raised after without collision
Flue dust airflow influence and on stretch and be expelled directly out.
As shown in Figure 1, Figure 2 and Figure 3, the smoke-intake pipe 2 is in horn-like and including big opening end 7 and osculum end 1, the big mouth
7 upper edges are held to flush with upper 4 upper edge of chamber body and be fixedly connected with upper 4 side of chamber body, in actual installation, 2 oral area of smoke-intake pipe
According to detachable connection method between upper 4 Side attachment locations of chamber body, then need to be arranged gasket, or directly will be into cigarette
Pipe 2 and upper 4 side of chamber body are welded, to guarantee that flue dust will not give out between 4 Side attachment locations of 2 oral area of smoke-intake pipe and upper chamber body
Come, causes secondary pollution；7 mouth area of big opening end is on the one hand to be convenient between 1.1 times to 1.3 times of 1 mouth area of osculum end
The installation and fixation of smoke-intake pipe 2, while reduction flue dust appropriate enters 9 speed of turbulent eddy room, but flue dust enters turbulent eddy
Speed cannot be too low in room 9, needs to guarantee that flue dust is collided with 9 side of turbulent eddy room, so that bulky grain flue dust moves rail
Mark is changed, and speed reduces, and realizes sedimentation.
As shown in Fig. 2, the guide plate 8 is fixedly connected with 2 two-phase inner surface sides of smoke-intake pipe, guide plate 8 is close to upper chamber body
End be located at the inside of smoke-intake pipe 2, the guide plate 8 presents bottom and installs no less than three pieces and mutually parallel, lowest level
17 extended line of guide plate is located at lower 5 bottom of chamber body, 18 upper position, 16 extended line of top layer's guide plate be located at upper chamber body 4 far from into
The lower position and bottom end upper position on 14 top of smoke pipe side；The setting of guide plate 8 is to change into flue dust and enter rapids
Flow the path and direction in vortex chamber 9, the setting of 8 angle of guide plate, therefore, to assure that be installed into cigarette on flue dust and turbulent eddy room 9
The opposite side 14,15 of pipe 2 is collided, and flue dust motion path is downward after collision, could guarantee in flue dust to greatest extent in this way
Large dust particle and sticky large particulate matter are settled, and are eventually entered into grey room 6.
As shown in figures 1 and 3, the upper chamber body 4 is obliquely installed close to the end face of smoke exhaust pipe 11 to 3 direction of smoke exhaust pipe；This
Just entering in turbulent eddy room 9 for the flue dust influence that part is risen after colliding is effectively guaranteed in the design of structure
Flue dust collides before entering 3 times of smoke exhaust pipe discharges with close to the end face 11 of smoke exhaust pipe, realizes the sedimentation of flue dust again, improves flue dust
Sedimentation rate.
As shown in figures 1 and 3, the smoke exhaust pipe 3 close to the side of smoke-intake pipe 12 apart from smoke-intake pipe side 13 apart from not small
In smoke-intake pipe mouth into half, increase the distance between side 12 and side 13, the flue dust for avoiding part from being risen after colliding
The flue dust just entered in turbulent eddy room 9 is carried to be discharged from smoke exhaust pipe 3.
As shown in figures 1 and 3, the lower chamber body depth is greater than upper chamber body depth, and the ash bucket is connected to lower chamber body bottom
And be vertically arranged, the smoke-intake pipe is greater than upper chamber body depth far from smoke exhaust pipe side and upper chamber body end face, lower chamber body depth
The flue dust after collision is enabled there are enough spaces to be vortexed in turbulent eddy room 9, flue dust there can be enough skies
Between and the time settled.
As shown in Figure 1 to Figure 3, a kind of turbulent eddy structure for capturing large dust particle of technical solution of the present invention, setting exist
Dust pelletizing system or deduster front end, for the large dust particle in capture dust, so that the biggish dust of viscosity can be by
It settles and enters dust and be collected, the design of this turbulent eddy structure can be realized in flue dust 50% ~ 60% large dust particle quilt
Sedimentation reduces damage of the flue dust to subsequent deduster, extends the service life of deduster, improve the efficiency of dust collection of deduster.
Technical solution of the present invention is exemplarily described invention above in conjunction with attached drawing, it is clear that present invention specific implementation
It is not subject to the restrictions described above, changes as long as using the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out
Into, or it is not improved the conception and technical scheme of invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (8)
1. a kind of turbulent eddy structure for capturing large dust particle, including smoke-intake pipe, turbulent eddy room, smoke exhaust pipe and grey room,
It is characterized in that, the turbulent eddy room includes the trapezoidal upper chamber body in cross section and cross section is in the lower chamber body of inverted trapezoidal, described
Upper chamber body is fixedly connected with lower chamber body and internal connection, and the smoke-intake pipe is horizontally disposed and connect with upper chamber body side surface, smoke-intake pipe
It is inside provided with guide plate, the guide plate is arranged diagonally downward, is provided with chevron shaped ceiling, the smoke exhaust pipe at the top of upper chamber body
It is arranged at the top of ceiling and is located at smoke-intake pipe side top position, the ash room is arranged in lower chamber body bottom.
2. a kind of turbulent eddy structure for capturing large dust particle according to claim 1, which is characterized in that described into cigarette
Pipe in horn-like and including big opening end and osculum end, the big opening end upper edge flushed with upper chamber body upper edge and with upper chamber side
Face is fixedly connected.
3. a kind of turbulent eddy structure for capturing large dust particle according to claim 1, which is characterized in that the guiding
Plate is fixedly connected with smoke-intake pipe two-phase inner surface sides, and guide plate is located on the inside of smoke-intake pipe close to the end of upper chamber body.
4. a kind of turbulent eddy structure for capturing large dust particle according to claim 3, which is characterized in that the guiding
Plate presents bottom and installs no less than three pieces and mutually parallel, and lowest level guide plate extended line is located at lower chamber body bottom upper position
It sets, top layer's guide plate extended line is located at lower position and bottom end upper position of the upper chamber body far from smoke-intake pipe side top.
5. a kind of turbulent eddy structure for capturing large dust particle according to claim 1, which is characterized in that the upper chamber
Body is obliquely installed close to the end face of smoke exhaust pipe to smoke exhaust pipe direction.
6. a kind of turbulent eddy structure for capturing large dust particle according to claim 1, which is characterized in that the smoke evacuation
Manage close to smoke-intake pipe lateral distance smoke-intake pipe lateral distance not less than smoke-intake pipe mouth into half.
7. a kind of turbulent eddy structure for capturing large dust particle according to claim 1, which is characterized in that the lower room
Body depth is greater than upper chamber body depth, and the ash bucket is connected to lower chamber body bottom and is vertically arranged.
8. a kind of turbulent eddy structure for capturing large dust particle according to claim 1, which is characterized in that described into cigarette
It manages far from smoke exhaust pipe side and upper chamber body end face.
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| CN201910289944.8A CN109847460A (en) | 2019-04-11 | 2019-04-11 | A kind of turbulent eddy structure capturing large dust particle |
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| CN201910289944.8A CN109847460A (en) | 2019-04-11 | 2019-04-11 | A kind of turbulent eddy structure capturing large dust particle |
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| CN201910289944.8A Pending CN109847460A (en) | 2019-04-11 | 2019-04-11 | A kind of turbulent eddy structure capturing large dust particle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664623A (en) * | 2009-09-25 | 2010-03-10 | 合肥工业大学 | Ultrafine particle deduster |
| CN103055610A (en) * | 2013-01-22 | 2013-04-24 | 黄石市建材节能设备总厂 | Inertia gravity dust collector |
| CN106731391A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | The horizontal Y types ultra-fine grain coalescence case of double jet type |
| CN209934274U (en) * | 2019-04-11 | 2020-01-14 | 安徽省利特环保技术有限公司 | Catch torrent vortex structure of large granule dust |
-
2019
- 2019-04-11 CN CN201910289944.8A patent/CN109847460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664623A (en) * | 2009-09-25 | 2010-03-10 | 合肥工业大学 | Ultrafine particle deduster |
| CN103055610A (en) * | 2013-01-22 | 2013-04-24 | 黄石市建材节能设备总厂 | Inertia gravity dust collector |
| CN106731391A (en) * | 2016-12-27 | 2017-05-31 | 盐城工学院 | The horizontal Y types ultra-fine grain coalescence case of double jet type |
| CN209934274U (en) * | 2019-04-11 | 2020-01-14 | 安徽省利特环保技术有限公司 | Catch torrent vortex structure of large granule dust |
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