CN106268100B - A kind of improvement type gravel bed filter - Google Patents
A kind of improvement type gravel bed filter Download PDFInfo
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- CN106268100B CN106268100B CN201610664009.1A CN201610664009A CN106268100B CN 106268100 B CN106268100 B CN 106268100B CN 201610664009 A CN201610664009 A CN 201610664009A CN 106268100 B CN106268100 B CN 106268100B
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- filtering
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- 230000006872 improvement Effects 0.000 title claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 33
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 6
- 210000000498 stratum granulosum Anatomy 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
Abstract
The invention discloses a kind of improvement type gravel bed filters, the vertically arranged at least one layer filter device including outer housing and in the outer housing, the filter device includes at least one filter element, the filter element includes filter chamber, the filter chamber is built-in with filtering bed, diversion division is arranged in the filtering bed top, and dusty gas enters filter bed layer in diversion division after shunting；Exhaust portion is arranged in downside of the filter chamber at filtering bed covering.The side wall of filter chamber is arranged to smooth streamlined by the present invention, dust can be prevented to be gathered in dead angle and can not be discharged, cause dust accretions problem in deduster.The regular ash discharge of ash discharging hole is arranged in filter chamber lower end in the present invention, solves the problems, such as the back mixing occurred during blowback.The present invention is arranged deflector in filter chamber, and deflector can make in filter process and deashing process air-flow uniformly through improving removal efficiency and blowback efficiency.
Description
Technical field
The invention belongs to gas cleaning technical field of environment protection equipment, are related to a kind of dust-extraction unit, change more particularly, to one kind
Into formula gravel bed filter.
Background technique
The occasion of hot precipitator engineer application is very extensive at present, including the energy, building materials, petroleum, steel, coal chemical industry etc..
High-temperature dust removal can farthest utilize the physical sensible heat of gas, improve energy utilization rate, realize that process is strong under hot conditions
Change reaction, realize the clean emission of gas, while can simplify technical process, saves technological equipment investment, in addition can save
Water resource, and avoid secondarily polluted water brought by wet dedusting.Gravel bed filter is resistant to 300 because its application is wider
~500 DEG C of high temperature, have structure is simple, shock resistance, wear-resistant, corrosion-resistant, relatively stable, operating cost is low, efficiency of dust collection compared with
The features such as high, and be widely used in various industrial applications.
Rake granular-bed filter is most common one kind in existing gravel bed filter, but the maximum of the filter lacks
Point is that regular blowing-out is needed to carry out blowback, is unable to continuous work, therefore often more parallel connections, is dusted in turn and blowback.It is mobile
Dedusting and deashing while progress may be implemented in bed granular bed filter deduster, but this diameter of movement should not be too large, simultaneously also
The blowback, conveying and lifting system of filtrate need to be increased.In addition filter screen is arranged in filter chamber bottom in existing gravel bed filter
Plate closes filter chamber lower part lower baffle plate shutter when blowback, but high ash environment will affect the normal operation of transmission device, blinds
Window is unable to normal switching-off, is easy to produce back mixing problem；Sieve plate meeting failure under high ash state is filtered simultaneously, influences blowback effect.
Summary of the invention
The present invention is to overcome above-mentioned the deficiencies in the prior art, to improve on fixed bed gravel bed filter, filtering
Device noumenon is provided with multiple filtration room, and filtering and dedusting can carry out simultaneously, does not have to shut down, continuous work, and occupied area is smaller.
The object of the present invention is to provide a kind of improvement type gravel bed filter, filter chamber is designed to smooth streamlined, prevented
Only dust is gathered in dead angle；The regular ash discharge of ash discharging hole is arranged in filter chamber lower end, solves the problems, such as the back mixing occurred during blowback；
In addition, equally distributed deflector is arranged in filter chamber, air-flow can be made in filter process and deashing process uniformly through mentioning
High removal efficiency and blowback efficiency.
To achieve the above object, the present invention adopts the following technical solutions：
A kind of improvement type gravel bed filter, including outer housing, it is vertical with dusty gas flow direction in the outer housing to set
At least one layer of filter device is set, the filter device includes at least one filter element, and the filter element includes filter chamber,
The filter chamber is built-in with filtering bed, and diversion division is arranged in the filtering bed top, and dusty gas is in diversion division after shunting
Into filtering bed；Exhaust portion is arranged in outside of the filter chamber at filtering bed covering.On the filtering bed of filter chamber
The diversion division for shunting dusty gas is arranged in portion, and diversion division is a part of filter device, and diversion division plays dispersion and equal gas distribution
The effect of stream, the stratum granulosum after dusty gas dispersion with filtering bed come into full contact with, and removal efficiency and reverse gas cleaning can be improved
Effect.
A kind of improvement type gravel bed filter, including outer housing, it is vertical with dusty gas flow direction in the outer housing to set
At least one layer of filter device is set, is respectively provided with diversion division on each layer of filter device top, whole stock dusty gas is shunted in diversion division
If entering filter device at carried interest completes filtering；Exhaust portion is arranged in the filter device lower part.Diversion division is separated with filter device
Setting, diversion division and filter device, which cooperate, realizes shunt filtering.
The filter device includes at least one filter element, and the filter element includes filter chamber, in the filter chamber
It is equipped with filtering bed, the diversion division is set to filtering bed top.
Further, the filter chamber is surrounded by inner housing and baffle, and the side wall of the inner housing is smooth streamlined；It is interior
Housing sidewall be arranged to it is smooth it is streamlined after, can be preferably dusted to avoid dust accretions problem.
Further, the inner housing includes upper side wall and lower wall, and the lower wall bottom is connect with baffle；It is described
Lower wall is obliquely installed；The lower wall of inner housing is arranged to inclined, is conducive to dust to congregate.
Preferably, the angle of the lower wall and vertical direction is 60 °~90 °；Lower wall and vertical direction angle are set
It sets in the range, it is ensured that dust while also ensuring that dusty gas being filled in filtering bed to the congregational rate of bottom
Divide filtering.
Further, the lower wall bottom and baffle junction are equipped with ash discharging hole, are equipped with valve at the ash discharging hole；Contain
For dust and gas body after the filtering of filter bed layer, dust carries out ash discharge by the ash discharging hole.
Further, the diversion division includes horizontally disposed partition, and the partition is equipped with multiple blow vents；It can be
Diversion division, is arranged to the partition with multiple blow vents by cell structure, and dusty gas passes through the air-flow being divided into when the diversion division
More, stratum granulosum everywhere in filtering bed is made full use of.
Alternatively, the diversion division includes several folded plates, there is setting spacing between the folded plate；The folded plate is horizontal
V-shape plate or W template；Multiple folded plate composition diversion divisions are set, and folded plate can make dusty gas be split into multiply, and per share air-flow exists
Detour under the action of folded plate, dusty gas contact more abundant with filtering bed, and dust removing effects are more preferable.
Further, the filter chamber is equipped with the rotary-type nozzle for carrying out blowback on outer side top；On the outside of filter chamber
Rotary-type nozzle is arranged in portion, after rotary-type nozzle is connected to back-blowing device, to blowback is carried out in filtering bed, generates stratum granulosum
" boiling " phenomenon, rotary-type nozzle, which rotates freely, can make gas flow purging to all filtrates, grit be blown out after by filter chamber
Portion is discharged from lower part ash discharging hole.
Further, air inlet is equipped at the top of the outer housing, the lower end of outer housing is equipped with ash bucket and total ash discharging hole；It is described
The lower end of air inlet is expansion chamber, and filter chamber setting is in expansion chamber two sides and filter chamber is connected to expansion chamber；The air inlet
Mouth, expansion chamber and ash bucket are on same plumb line；Bulky grain grit enters expansion chamber by air inlet, falls into ash bucket and carries out
Discharge.
Further, the outer housing following side is additionally provided with total net port for gas after exhaust filtering；Gas warp
Purification gas after dust removal by filtration is discharged by total net port.
Preferably, the ash discharging hole is connected to expansion chamber；Gas is entered through the filtered dust of filter bed layer by ash discharging hole
Expansion chamber, after fall into discharge in ash bucket.
The operation principle of the present invention is that：
Diversion division is set in deduster filter chamber, and diversion division enters filter bed layer after shunting dusty gas, after shunting
Dusty gas come into full contact in filtering bed with stratum granulosum, the net gas after dedirt is discharged by the exhaust portion of filter chamber；Blowback
When close gas outlet, to blowback is carried out in filter chamber at back blow port, the stratum granulosum for filtering bed is in fluidized state, and dust is then
It is blown into the discharge of filter chamber's ash discharging hole.
Beneficial effects of the present invention are：
The side wall of filter chamber is arranged to smooth streamlined by the present invention, dust can be prevented to be gathered in dead angle and can not be discharged,
Cause dust accretions problem in deduster.
Blowback port is arranged in filter chamber's outer upper the present invention, on the one hand can avoid the obstruction of back blow port, another party
Face reduces blowback resistance.
The regular ash discharge of ash discharging hole is arranged in filter chamber lower end in the present invention, solves the problems, such as the back mixing occurred during blowback.
In addition, diversion division is arranged in the present invention in filter chamber, diversion division can make air-flow in filter process and deashing process
Uniformly through improving removal efficiency and blowback efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gravel bed filter of the present invention；
Fig. 2 is the structural schematic diagram of 1 filter chamber of embodiment；
Fig. 3 is the structural schematic diagram of 2 filter chamber of embodiment；
In figure, 1- air inlet, 2- expansion chamber, the filter chamber 3-, 4- diversion division, 5- filtering bed, 6- exhaust outlet, 7- ash discharge dress
It sets, the total net port of 8-, 9- ash bucket, the total ash discharging hole of 10-, 11- ash discharging hole, 12- ash discharge valve, 13- deflector a, 14- outer housing,
15- upper side wall, 16- lower wall, 17- deflector b, 18- baffle, the rotary-type nozzle of 19-.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1：
As shown in Figure 1, a kind of improvement type gravel bed filter, including outer housing 14 and in outer housing 14 it is vertically arranged
At least one layer of filter device, filter device include at least one filter element, and filter element includes filter chamber 3, built in filter chamber 3
There is filtering bed 5, diversion division 4 is arranged in filtering 5 top of bed, and dusty gas enters filter bed layer 5 in diversion division 4 after shunting,
Diversion division 4 plays the role of dispersing and being evenly distributed with air-flow；Exhaust portion, exhaust is arranged in downside of the filter chamber 3 at filtering 5 covering of bed
Portion can be narrow gap or hole or other components that can be discharged with supplied gas, and exhaust portion selection is set as exhaust outlet 6 in the present invention.
The diversion division 4 for shunting dusty gas is set on filtering 5 top of bed of filter chamber 3, diversion division 4 plays dispersion and uniformly distributed air-flow
Effect, dusty gas dispersion after with filtering bed 5 stratum granulosum come into full contact with, can be improved removal efficiency and reverse gas cleaning effect
Fruit.
Air inlet 1 is equipped at the top of outer housing 14, the lower end of outer housing 14 is equipped with ash bucket 9 and total ash discharging hole 10, total ash discharging hole
10 are arranged in the lower end of ash bucket 9；The lower end of air inlet 1 is expansion chamber 2, and filter chamber 3 is arranged in 2 two sides of expansion chamber and filter chamber 3
It is connected to expansion chamber 2；Air inlet 1, expansion chamber 2 and ash bucket 9 are on same plumb line；Bulky grain grit by air inlet 1 into
Enter expansion chamber 2, falls into ash bucket and be discharged.Air inlet 1 is provided with the insertion plate door for controlling gas flow.
The side wall and vertical direction angle of ash bucket 9 are 60 °, can weaken the generation in air-flow dead zone and reentrainment of dust phenomenon,
It is equipped with ash discharging hole below ash bucket, this pneumatic ash transmitting system being capable of the appearance without secondary droplets phenomenon in basic guarantee ash bucket.
14 following side of outer housing is additionally provided with total net port 8 for gas after exhaust filtering；Gas is after dust removal by filtration
Purification gas be discharged by total net port 8.The exhaust outlet 6 of each filter chamber 3 is filtered net port, each filter chamber 3
Net gas by exhaust outlet 6 be discharged after finally by it is total only port 8 be discharged, the space between outer housing 14 and the inner housing of filter chamber 3
The connected space of the circulating area of as net gas, expansion chamber 2 and ash bucket 9 is the settling zone of dust after filtering.
Filter chamber 3 is equipped with rotary-type nozzle 19 in outer upper lateral part；In filter chamber, rotary-type nozzle 19 is arranged in outer upper, right
It filters and carries out blowback in bed, so that stratum granulosum is generated " boiling " phenomenon, grit falls into ash bucket by the discharge of filter chamber bottom, to avoid
Generate dead space, by rotary-type nozzle be arranged to can each angle rotation, be more conducive to the progress of blowback.In rotary-type spray
It is connected at mouth 19 with blowback setting, such as blowback rifle, to carrying out blowback in filter chamber 3 at rotary-type nozzle 19.
As shown in Fig. 2, filter chamber 3 is surrounded by inner housing and baffle 18, inner housing includes upper side wall 15 and lower wall 16, under
16 bottom of side wall is connect with baffle 18；The side wall of inner housing includes but is not limited to smooth streamlined, preferably streamlined arc-shaped；
Lower wall 16 is obliquely installed；Inner casing body sidewall be arranged to it is smooth it is streamlined after, can be to avoid dust accretions problem, can be better
It is dusted.The lower wall 16 of inner housing is arranged to inclined, is conducive to dust to congregate.The upper side wall 15 of inner housing
There is gap between baffle 18, enter filter chamber for dusty gas.
Filter chamber's inner housing is not limited to shape in figure, adjustable according to specific operating condition and processing method, after stream field simulation
Meet service requirement and guarantees efficiency of dust collection.
The angle of lower wall 16 and vertical direction is between 60 °~90 °；Lower wall and vertical direction angle are arranged at this
In range, it is ensured that congregational rate from dust to bottom, while also ensure dusty gas filtering bed abundant filtering.
16 bottom of lower wall and 18 junction of baffle are equipped with ash discharging hole 11, are equipped with ash discharge valve 12 at ash discharging hole 11；Dust-laden
After the filtering of filter bed layer 5, dust of the moiety aggregation in bottom is slipped to the ash discharging hole 11 under the effect of gravity and is arranged gas
Ash, can prevent has dust to slide during filtering or blowback generates back mixing phenomenon.The ash discharging hole 11 of each filter chamber 3 with
Expansion chamber 2 is connected to；Gas enters expansion chamber by ash discharging hole through the filtered dust of filter bed layer, after fall into discharge in ash bucket.
Diversion division 4 is deflector a 13, and the top that bed 5 is filtered in filter chamber 3 is arranged in.
Deflector a 13 is horizontally disposed partition, and partition is equipped with multiple blow vents；It can be cell structure, by water conservancy diversion
Portion is arranged to the partition with multiple blow vents, and dusty gas is more by the air-flow being divided into when the diversion division, makes full use of
Stratum granulosum in filter bed layer everywhere.
Embodiment 2：
As shown in figure 3, in the embodiment by diversion division 4 be deflector b 17, be plugged in the filtering bed 5 of filter chamber 3
Interior, deflector b 17 is made of several folded plates, has setting spacing between folded plate；Folded plate is horizontal V-shape plate or W template；
Multiple folded plate composition diversion divisions are set, and folded plate can make dusty gas be split into multiply, and per share air-flow is circuitous under the action of folded plate
It returns, dusty gas contacts more abundant with bed is filtered, and dust removing effects are more preferable.
Deflector includes but is not limited to shape described in both embodiments.According to air flow method situation, not similar shape is arranged
The deflector of shape, makes dust-contained airflow come into full contact with stratum granulosum, improves removal efficiency and reverse gas cleaning effect.
By taking the gravel bed filter of three layer filtration device as an example：14 top of outer housing be provided with dusty gas entrance (i.e. into
Port 1), gas flow is controlled by insertion plate door, guarantees that velocity interval of the dusty gas in main workspace is preferably 0.3-0.6m/s,
The speed can guarantee higher efficiency of dust collection.Dusty gas becomes owner of workspace by divergent segment is laggard, since wind speed reduces, greatly
The scarce capacity that partial size grit is carried by air-flow, under gravity, big partial size grit fall directly into the ash bucket 7 positioned at equipment
In (what black big arrow in middle part indicated is the flow path of big partial size grit in Fig. 1, is biased to what the black small arrows of two sides indicated
It is the flow path of remaining grit, the gas after being the purification flowed outwardly by the exhaust outlet 6 of filter chamber 3 that white arrow indicates
Flow path).Remaining grit under the barrier effect of filter chamber's inner housing, passes through filtering under the action of air-flow carries
Bed 5 is dusted.The applicability of filtering material is wider, partial size can be selected for the material of 1-10mm according to different operating conditions, in addition
The characteristics of according to the filtering material of selection, cooperation partial size is less than the exhaust outlet 6 of material particle size, in the premise for not revealing filtering material
Under, crushing is reduced to greatest extent.According to the operating condition of dusty gas, go out the diversion division 4 of suitable form is arranged in filtering bed 5,
When by diversion division 4, dusty gas is split dust-contained airflow, even into filtering bed 5, inertial collision, diffusion precipitin,
Under the action of the mechanism such as gravitational settling, sieving, gas is purified, and is expelled in outer housing 14 and filter chamber via exhaust outlet 6
Between shell, final net gas is discharged by total net port 8 of device lower part.Three layer filtration layer is under the pattern of the device, priority
Essentially identical, dust-cleaning principle is identical, can achieve the purpose that constant speed high-effective dust-removing.
It, should in order to guarantee that particle layer material still keeps efficient operation, and the operating condition of reply atm number whithin a period of time
Technical solution preferably uses more device parallel connections.And according to operating condition, successively carries out strength blowback ash and rinse.When the device is in
When blowback ash rinses state, lower exhaust port 6 is closed, and carries out blowback by blowback port 19, high pressure gas, which sprays, enters filtering
Room 3, and under the action of diversion division 4, so that filtrate is in fluidized state, air-flow takes the dust in filtrate out of, and blowback port can
Rotation, avoids deashing incomplete.The setting of ash discharging hole, can be to avoid the back mixing phenomenon occurred during blowback, and dust is by ash discharge
Mouth 11 falls into expansion chamber 2, and falls into ash bucket 9, is discharged from total ash discharging hole 10.And baffle 18 guarantees that stratum granulosum was not blown out
Filter chamber 3.Successively soot blowing is that can reach the purpose of whole efficient operation for more device parallel connections.
When device is in dust removal state, the opening of exhaust outlet 6 is exhausted, helps to take dust and gas stream and passes through；Work as device
When in blowback ash state, exhaust outlet is closed, back-blowing device is connected at rotary-type nozzle 19 and carries out blowback.By rotary-type nozzle
Positioned at the side of filter chamber 3, it on the one hand can avoid the obstruction of rotary-type nozzle, on the other hand reduce blowback resistance, save operation
Cost, makes stratum granulosum more fully be in fluidized state, and dust is smoothly blown into expansion chamber 2 and is settled.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (6)
1. a kind of improvement type gravel bed filter, characterized in that including outer housing and in the outer housing it is vertically arranged extremely
Few one layer of filter device, the filter device includes at least one filter element, and the filter element includes filter chamber, described
Filter chamber is built-in with filtering bed, and diversion division is arranged in the filtering bed top, and dusty gas enters after shunting in diversion division
Filter bed；Exhaust portion is arranged in downside of the filter chamber at filtering bed covering；
The filter chamber is surrounded by inner housing and baffle, and the side wall of the inner housing is smooth streamlined；
The inner housing includes upper side wall and lower wall, and the lower wall bottom is connect with baffle；The lower wall is obliquely installed；
The angle of the lower wall and vertical direction is 60 °~90 °；
The lower wall bottom and baffle junction are equipped with ash discharging hole, are equipped with valve at the ash discharging hole；
The filter chamber is equipped with the rotary-type nozzle for carrying out blowback on outer side top.
2. a kind of improvement type gravel bed filter, characterized in that including outer housing, flowed in the outer housing with dusty gas
It is vertically arranged at least one layer of filter device, is respectively provided with diversion division on each layer of filter device top, whole stock dusty gas is in water conservancy diversion
If portion, which is split into carried interest, enters filter device completion filtering；Exhaust portion is arranged in the filter device lower part；
The filter chamber is surrounded by inner housing and baffle, and the side wall of the inner housing is smooth streamlined；
The inner housing includes upper side wall and lower wall, and the lower wall bottom is connect with baffle；The lower wall is obliquely installed；
The angle of the lower wall and vertical direction is 60 °~90 °；
The lower wall bottom and baffle junction are equipped with ash discharging hole, are equipped with valve at the ash discharging hole；
The filter chamber is equipped with the rotary-type nozzle for carrying out blowback on outer side top.
3. improvement type gravel bed filter as claimed in claim 2, characterized in that the filter device includes at least one mistake
Unit is filtered, the filter element includes filter chamber, and the filter chamber is built-in with filtering bed.
4. improvement type gravel bed filter as claimed in claim 1 or 2, characterized in that the diversion division includes several folded plates,
There is setting spacing between the folded plate；The folded plate is horizontal V-shape plate or W template.
5. improvement type gravel bed filter as claimed in claim 1 or 2, characterized in that the diversion division includes horizontally disposed
Partition, the partition be equipped with multiple blow vents.
6. improvement type gravel bed filter as claimed in claim 1 or 3, characterized in that be equipped with air inlet at the top of the outer housing
Mouthful, the lower end of outer housing is equipped with ash bucket and total ash discharging hole；The lower end of the air inlet is expansion chamber, and filter chamber's setting is heavy
It drops room two sides and filter chamber is connected to expansion chamber；The air inlet, expansion chamber and ash bucket are on same plumb line；It is described outer
Shell following side is additionally provided with total net port for gas after exhaust filtering；The ash discharging hole is connected to expansion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610664009.1A CN106268100B (en) | 2016-08-12 | 2016-08-12 | A kind of improvement type gravel bed filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610664009.1A CN106268100B (en) | 2016-08-12 | 2016-08-12 | A kind of improvement type gravel bed filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106268100A CN106268100A (en) | 2017-01-04 |
| CN106268100B true CN106268100B (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610664009.1A Active CN106268100B (en) | 2016-08-12 | 2016-08-12 | A kind of improvement type gravel bed filter |
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| Country | Link |
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| CN (1) | CN106268100B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289407B (en) * | 2018-09-30 | 2023-10-03 | 宁波大学 | Annular particle layer filtering and dust removing device |
| CN113069858A (en) * | 2021-02-24 | 2021-07-06 | 佛山市三水凤铝铝业有限公司 | Baffle type dust remover |
| CN112973365B (en) * | 2021-04-08 | 2024-04-09 | 邢台职业技术学院 | PM2.5 adsorption device and manufacturing method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2278520Y (en) * | 1994-09-19 | 1998-04-15 | 机械工业部哈尔滨电站设备成套设计研究所 | Wet bed granule layer deduster |
| CN100464820C (en) * | 2006-03-13 | 2009-03-04 | 董谊仁 | Gas-purifying combined absorbing tower and application thereof |
| US8870988B2 (en) * | 2009-07-24 | 2014-10-28 | Samsung Electronics Co., Ltd. | Dust collector for a vacuum cleaner having a dust removal function |
| CN203315954U (en) * | 2013-06-06 | 2013-12-04 | 南京林业大学 | Granular layer dust collector in wood industry |
| CN104740969B (en) * | 2015-03-24 | 2016-04-13 | 山东神华山大能源环境有限公司 | A kind of boiling type granular bed filter deduster |
| CN206081978U (en) * | 2016-08-12 | 2017-04-12 | 山东神华山大能源环境有限公司 | Improved type grained layer dust remover |
-
2016
- 2016-08-12 CN CN201610664009.1A patent/CN106268100B/en active Active
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|---|---|
| CN106268100A (en) | 2017-01-04 |
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