CN106621649A - Device and method for pre-removing popcorn ash of SCR denitration system - Google Patents
Device and method for pre-removing popcorn ash of SCR denitration system Download PDFInfo
- Publication number
- CN106621649A CN106621649A CN201610940901.8A CN201610940901A CN106621649A CN 106621649 A CN106621649 A CN 106621649A CN 201610940901 A CN201610940901 A CN 201610940901A CN 106621649 A CN106621649 A CN 106621649A
- Authority
- CN
- China
- Prior art keywords
- flue
- ash
- plate
- puffed rice
- separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a device for pre-removing popcorn ash of an SCR denitration system. The device comprises a vertical shaft flue, a horizontal flue and an uptake shaft which are connected in sequence, wherein the turning connection positions between the horizontal flue and the vertical shaft flue and the uptake shaft respectively have streamline appearances, an ash hopper is arranged on the lower side of a base plate of the horizontal flue, and a catcher, a separator and a filter screen are sequentially arranged on the side in the smoke flowing direction. A smoke circulating port is formed in a base plate of the tail portion of the horizontal flue and is communicated with the ash hopper. The invention further provides a method for pre-removing popcorn ash of the SCR denitration system. The flinging wall characteristics at the connection positions of the streamline vertical shaft flue and the horizontal flue which are installed without guiding plates are utilized to form a high-ash-concentration flue airflow, and popcorn ash and smoke are efficiently separated by sequentially adopting the catcher, the separator and the filter screen based on streaming impact type separation, gravity settling separation and intercepting separation principles. Rapid and effective separation of high-temperature and high-concentration popcorn ash is achieved by adopting the method, and the device has the advantages of being simple in structure and safe and stable in operation.
Description
Technical field
The present invention relates to a kind of SCR denitration system belongs to atmosphere pollution control in advance except the method and device of puffed rice ash
Technical field.
Background technology
Puffed rice ash be it is a kind of be formed at boiler heating surface surface bulky grain ash, general size can reach 10mm and with
On, in addition, the characteristic such as this ash also has low-density, loose porous and profile irregular.Therefore, in SCR denitration system
In, puffed rice ash once enters catalyst layer, will certainly abrasive catalyst surface, reduce catalyst activity, even can block up sometimes
Plug catalyst duct, so as to aggravate the abrasion of unplugged side catalyst, makes SCR system denitration function rapid failure.
In order to prevent the blocking of puffed rice ash, it is necessary to carry out pre- ash disposal process to the flue gas into catalyst layer.At present,
The common practices of developed countries and regions are to arrange ash bucket below steering flue, and are carried out using cfdrc excellent
Change design, but the method does not obtain at home promising result during the concrete application of power plant, and main cause is the country right
What denitrating system considered first when designing is flow field uniformity optimization, i.e., arrange water conservancy diversion in the larger steering flue of velocity gradient
Plate.The application of deflector forces that flue gas flow velocity in whole flue cross section is uniform, and this will make the ash quantity of inflow ash bucket low, from
And significantly reduce overall ash disposal efficiency.Also there is part power plant to take and install the measure of drainage screen additional in flue, but rely solely on list
One drainage screen is difficult the most of soot particle of effectively trapping, and efficiency of dust collection is substantially limited by the pore size of drainage screen, because
Too small aperture of filter screen can greatly increase the droop loss of flue.
Analyze from more than, in order to reduce the abrasion of SCR denitration system catalyst, improve the denitration energy of whole system
Power, is highly desirable to exploitation one kind and neither dramatically increases denitrating system pressure drop, and the pre- ash disposal side of puffed rice ash is can efficiently separate again
Method and device.
The content of the invention
Goal of the invention：The present invention causes catalyst blockage, serious wear for there is puffed rice ash in SCR denitration system
Etc. outstanding problem, there is provided a kind of SCR denitration system removes in advance the device and method of puffed rice ash, for being segregated into catalyst layer
Puffed rice ash in front denitration flue gas.
Technical scheme：To solve above-mentioned technical problem, the invention provides a kind of SCR denitration system is in advance except puffed rice ash
Device, including the vertical well gas flue, horizontal flue and uptake flue that are linked in sequence, wherein：
Described vertical well gas flue is vertically connected with horizontal flue, and junction of turning round is arranged to streamlined contour, and inside does not set
Put deflector.
The downside of the horizontal flue base plate arranges ash bucket, 1～20 catcher of anterior setting on the upside of base plate, along flue gas
Flow direction is arranged in juxtaposition, and the bottom of each catcher is correspondingly arranged a separating plate；Horizontal flue middle part arranges 10～100
Separator, top is connected with horizontal flue top board, and bottom is connected with horizontal flue base plate, and with ash bucket in be connected；Horizontal cigarette
Road rear portion arranges two-layer drainage screen, and ground floor drainage screen is longitudinally arranged, and upper and lower two is individually fixed in top board and base plate, the second layer
Drainage screen lateral arrangement, left and right two is individually fixed in side plate, is connected in bottom and ash bucket；Open on horizontal flue afterbody base plate
If flue gas connected entrance, is connected with ash bucket.
Described uptake flue is vertically connected with horizontal flue, and junction of turning round is arranged to streamlined contour, and inside is arranged
Deflector.
Described catcher is made up of entrapment plate, drainage plate and flow straightener, wherein, entrapment plate and horizontal flue base plate angle
For θ=35～50 °, it is higher than base plate H=50～120mm to meet stream end；Drainage plate is in circular arc, front end and the tangent connection of entrapment plate,
Rear end is vertically aligned with the front end of adjacent entrapment plate；Flow straightener is in del, is placed in drainage plate lower end, and wherein a line is being caught
On the extended line of collection plate.
Described separating plate is welded by two block size identical steel plates, and angle is α=75～90 °, every piece of separating plate
Summit and drainage plate rear end in same vertical direction, and at a distance of E=150～500mm, the fluoran stream surface and entrapment plate of separating plate
Extended line be mutually perpendicular to.
Described separator is presented concave groove type, and against direction of flow, 10～100 separators are arranged to two rows to concave surface, are in
It is staggered in arrangement, each separator is β=60～75 ° with base plate inclination angle, often arranges separator at a distance of W=100～180mm, each column point
From device at a distance of L=100～150mm.
Present invention further proposes a kind of dust collection method for removing puffed rice apparatus for ash in advance using above-mentioned SCR denitration system,
Characterized in that, comprising the steps：
(1) when the ash-laden gas for coming is flow through from boiler vertical well gas flue being redirected into horizontal flue, in gravity and centrifugal force
Under collective effect, horizontal flue lower area is thrown toward, especially the larger puffed rice ash of particle diameter, againsts base plate motion, utilizes
Such case, arranges some catchers at the base plate of horizontal flue.
(2) some carry the flue gas of greater particle size puffed rices ash secretly under the drainage of first piece of entrapment plate, into ash bucket,
And impinge upon on separating plate, puffed rice ash is moved downward under gravity along separating plate side plate, and the hopper bottom that drops, cigarette
Gas is moved upwards under suction function along separating plate side plate.
(3) some carry the flue gas of greater particle size puffed rices ash secretly under the collective effect of drainage plate and second piece of entrapment plate,
Into ash bucket, the process of repeat step (2).
(4) flue gas of some entrainment medium grain size puffed rice ashes and cinder enters horizontal flue middle part, separates with first row
The groove surface of device clashes into, and flue gas bypasses groove surface and flows out from first row separator gap, and puffed rice ash and cinder are along groove surface
Slide downward, by the outlet of bottom ash bucket is entered, from the entrainment medium grain size puffed rice ash that first row separator gap is flow through
Clash into the groove surface of second row separator with the flue gas of cinder, and repeat above procedure.
(5) flue gas of some entrainment small particle puffed rice ashes and fine ash enters horizontal flue rear portion, makees with two-layer drainage screen
With part ash is intercepted to fall into ash bucket, and the flue gas of Rao Liuhou enters uptake flue by the current balance function of deflector.
(6) the puffed rice ash into ash bucket region falls into the grey storehouse of hopper bottom under gravitational settling effect, and enters ash charge
The flue gas in bucket region then imports the main flume of horizontal flue under suction function from flue gas UNICOM mouth, also passes through deflector
Uptake flue is entered after current balance function.
Beneficial effect：Compared with conventional SCR denitration device, the present invention has following characteristic and advantage：
(1) conventional scr denitrification apparatus generally additionally do not install pre-dedusting device additional, simply in the case where flue or horizontal flue is turned to
Ash bucket is installed in side, and the larger puffed rice granule of fraction particle diameter is collected in sedimentation, and the present invention has specially installed pre-dedusting device additional, can
The grey and a part of fine ash of most puffed rices is removed, the ash abrasion for significantly reducing flue inner supporting structure and catalyst is asked
Topic.
(2) present invention has organically combined various gas solid separation principles, such as turn to the centrifugation principle of bend, separating plate and
Sedimentation theory for streaming impacting type separation principle, the interception separation principle of drainage screen and ash bucket of separator etc. is this more
The integrated application of physical process can realize the high efficiency separation of puffed rice ash and flue gas.
(3) present invention is provided with catcher on the base plate of horizontal flue, and the structure is by entrapment plate and the organic knot of drainage plate
Close, effectively trapped high cloud of dust gas, be follow-up gravity settling separation provides the foundation with streaming impacting type and separating.
(4) separator that the present invention is adopted meets stream and integral inclined arrangement, this arrangement in horizontal flue inner groovy
Both be effectively utilized separator streams impacting type separation principle, has been greatly reduced the local resistance of separator, can protect
System energy consumption is not increased on the basis of card efficiency of dust collection.
(5) longitudinal twine and horizontal twine are separated by a distance arrangement, this arrangement side by the drainage screen that the present invention is adopted
Formula reduces droop loss of the flue gas by drainage screen on the basis of certain separation efficiency is ensured, contributes to reducing air-introduced machine
Power consumption.
Description of the drawings
Fig. 1 is the front view that the SCR denitration system of the embodiment of the present invention removes in advance puffed rice apparatus for ash, wherein having：Vertical shaft cigarette
Road -1；Horizontal flue -2；Uptake flue -3；Ash bucket -4；Top board -5；Base plate -6；Catcher -7；Separating plate -8；Separator -9；Cross
Filter screen -10；Flue gas connected entrance -11；
Fig. 2 is the SCR denitration system of the embodiment of the present invention in advance except the catcher schematic diagram in puffed rice apparatus for ash；
Fig. 3 is the SCR denitration system of the embodiment of the present invention in advance except the separator partial schematic diagram in puffed rice apparatus for ash；
Fig. 4 is the SCR denitration system of the embodiment of the present invention in advance except the A-A of puffed rice apparatus for ash is to schematic diagram；
Fig. 5 is the SCR denitration system of the embodiment of the present invention in advance except the B-B direction schematic diagram of puffed rice apparatus for ash.
Specific embodiment
The present invention proposes a kind of SCR denitration system in advance except the device of puffed rice ash, and as shown in figures 1-4, including order connects
Vertical well gas flue 1, horizontal flue 2 and the uptake flue 3 for connecing, vertical well gas flue 1 is vertically connected with horizontal flue 2, and junction of turning round sets
Streamlined contour is set to, inside is not provided with deflector, and uptake flue 3 is vertically connected with horizontal flue 2, and junction of turning round is arranged to
Streamlined contour, inside arranges deflector, and the downside of horizontal flue base plate 6 arranges ash bucket 4, and anterior setting of the upside of base plate 6 is caught
Storage 7, the middle part between top board 5 and base plate 6 arranges separator 9, and rear portion arranges drainage screen 10, and flue gas company is opened up on afterbody base plate
Port 11.
Wherein, catcher (as shown in Figure 2) is made up of entrapment plate 12, drainage plate 13 and flow straightener 14, entrapment plate 12 and water
Flat flue base plate angle is θ=35～50 °, meets stream end higher than base plate H=50～120mm, and drainage plate 13 is in circular arc, front end with
The tangent connection of entrapment plate 12, rear end is vertically aligned with the front end of adjacent entrapment plate 12, and flow straightener 14 is in del, is placed in drain
The lower end of plate 13, wherein a line is on the extended line of entrapment plate 12.1～20 catcher is arranged in juxtaposition along flow of flue gas direction,
The bottom of each catcher is correspondingly arranged a separating plate.
Separating plate 8 is welded by two block size identical steel plates, and angle is α=75～90 °, the summit of every piece of separating plate
With the rear end of drainage plate in same vertical direction, and at a distance of E=150～500mm, the fluoran stream surface of separating plate and the prolongation of entrapment plate
Line is mutually perpendicular to.
Separator 9 is presented concave groove type, and top is connected with horizontal flue top board, and bottom is connected with horizontal flue base plate, and with
It is connected in ash bucket, against direction of flow, 10～100 separators are arranged to two rows to concave surface, in being staggered in arrangement, each separator
Be β=60～75 ° with base plate inclination angle, often arrange separator at a distance of W=100～180mm, each column separator at a distance of L=100～
150mm。
Drainage screen 10 is longitudinally arranged in a point two-layer arrangement, ground floor drainage screen, and upper and lower two is individually fixed in top board and bottom
Plate, second layer drainage screen lateral arrangement, left and right two is individually fixed in side plate, and bottom is connected with ash bucket, from terms of AA directions, two
Drainage screen is crisscross reticulates for layer, as shown in figure 4, the drainage screen of horizontally set can be seen from BB views, such as Fig. 5 institutes
Show.
The application process of technical solution of the present invention is described in detail below by way of specific embodiment.The present embodiment is with this skill
Implemented under premised on art scheme, given embodiment, but protection scope of the present invention is not limited to following embodiments.
The present embodiment carries out SCR denitration dedusting technology transformation for certain coal burning boiler of power station, and the boiler standard state exhaust gas volumn is
200000Nm3/ h, horizontal flue sectional dimension is high 1.8m, width 2m, depth 6m.After transformation, horizontal flue turns round with vertical well gas flue
Junction arranges profile in the arc-shaped, and inside is not provided with deflector.Ash bucket is set in the downside of horizontal flue base plate, covers whole
Base plate.Anterior on the upside of horizontal flue base plate arranges 5 catchers being arranged in juxtaposition along flow of flue gas direction, each catcher by
Entrapment plate, drainage plate and flow straightener composition.Entrapment plate and horizontal flue base plate angle are 45 °, and it is higher than base plate 80mm to meet stream end.Circle
Arc drain front edge of board and the tangent connection of entrapment plate, rear end is vertically aligned with the front end of adjacent entrapment plate.In the steady of del
Stream device is placed in drainage plate lower end, and wherein a line is on the extended line of entrapment plate.
Two row's separators are set in the middle part of horizontal flue, and each separator is presented concave groove type, concave surface is in against direction of flow
It is in tilted layout, is 68 ° with base plate inclination angle, top is connected with horizontal flue top board, and bottom is connected with horizontal flue base plate, often row point
From device at a distance of 150mm, each column separator is staggered in arrangement at a distance of 120mm, and separator bottom is connected with ash bucket.
Two-layer drainage screen is set at horizontal flue rear portion, ground floor drainage screen is longitudinally arranged, and upper and lower two is individually fixed in
Top board and base plate, second layer drainage screen lateral arrangement, left and right two is individually fixed in side plate, and bottom is connected with ash bucket.Water
Flue gas connected entrance is opened up on flat flue afterbody base plate, is connected with ash bucket.
Separating plate is welded by two block size identical steel plates, and angle is 85 °, is arranged on the bottom of each catcher,
The summit of every piece of separating plate and the rear end of drainage plate are in same vertical direction, and 300mm apart, fluoran stream surface and the trapping of separating plate
The extended line of plate is mutually perpendicular to.
When SCR denitration system works in advance except the device of puffed rice ash, the ash-laden gas for coming is flow through from boiler downward-flow flue
When being redirected into horizontal flue, under the collective effect of gravity and centrifugal force, horizontal flue lower area is thrown toward, especially grain
The larger puffed rice ash in footpath, againsts base plate motion.Now, the flue gas of some entrainment greater particle size puffed rice ashes is in first piece of trapping
Under the drainage of plate, into ash bucket, and impinge upon on separating plate, puffed rice ash under gravity along separating plate side plate to
Lower motion, and the hopper bottom that drops, flue gas is moved upwards under suction function along separating plate side plate.Other entrainments are larger
The flue gas of particle diameter puffed rice ash, into ash bucket, repeats said process under the collective effect of drainage plate and second piece of entrapment plate.And
The flue gas of some entrainment medium grain size puffed rice ashes and cinder enters horizontal flue middle part, hits with the groove surface of first row separator
Hit, flue gas bypasses groove surface and flows out from first row separator gap, puffed rice ash and cinder pass through along groove surface slide downward
The outlet of bottom enters ash bucket, the entrainment medium grain size puffed rice ash flow through from first row separator gap and the flue gas of cinder and
The groove surface of first row separator clashes into, and repeats above procedure.The cigarette of remaining some entrainment small particle puffed rice ash and fine ash
Gas enters horizontal flue rear portion, and with the effect of two-layer drainage screen, part ash is intercepted to fall into ash bucket, the stream that flue gas passes through deflector
Uptake flue is entered after effect.Puffed rice ash into ash bucket region falls into the grey storehouse of hopper bottom under gravitational settling effect,
And the flue gas for entering ash bucket region then imports the main flume of horizontal flue under suction function from flue gas connected entrance, also pass through
Uptake flue is entered after the current balance function of deflector.
The present invention has organically combined various gas solid separation principles, such as turn to the centrifugation principle of bend, separating plate and point
Sedimentation theory for streaming impacting type separation principle, the interception separation principle of drainage screen and ash bucket from device etc., this many things
The integrated application of reason process can realize the high efficiency separation of puffed rice ash and flue gas.Meanwhile, by the base plate of horizontal flue
Catcher is provided with, the structure organically combines entrapment plate and drainage plate, has effectively trapped high cloud of dust gas, is follow-up gravitational settling
Separate and stream impacting type separation to provide the foundation.
In addition, the separator that the present invention is adopted meets stream and integral inclined arrangement, this arrangement side in horizontal flue inner groovy
What formula had both been effectively utilized separator streams impacting type separation principle, has been greatly reduced the local resistance of separator, Ke Yi
Ensure not increasing system energy consumption on the basis of efficiency of dust collection.On the other hand, by the drainage screen that adopts by longitudinal twine and laterally
Twine is separated by a distance arrangement, and this arrangement reduces flue gas and passed through on the basis of certain separation efficiency is ensured
The droop loss of filter screen, contributes to reducing the power consumption of air-introduced machine.
Claims (7)
1. a kind of SCR denitration system is in advance except the device of puffed rice ash, it is characterised in that described SCR denitration system removes in advance rice krispies
Flower apparatus for ash includes vertical well gas flue, horizontal flue and the uptake flue being linked in sequence, and the vertical well gas flue is being turned with horizontal flue
Curved junction is streamlined contour, and inside is not provided with deflector；The downside of the horizontal flue base plate arranges ash bucket；The level
Anterior setting catcher on the upside of flue base plate；The horizontal flue middle part arranges separator；The horizontal flue rear portion is arranged
Drainage screen；Flue gas connected entrance is opened up on the horizontal flue afterbody base plate, is connected with ash bucket；The uptake flue and horizontal cigarette
Road junction of turning round is arranged to streamlined contour, and inside arranges deflector.
2. SCR denitration system according to claim 1 is in advance except the device of puffed rice ash, it is characterised in that the catcher
It is made up of entrapment plate, drainage plate and flow straightener, wherein, entrapment plate and horizontal flue base plate angle are θ=35～50 °, meet stream end
Higher than base plate H=50～120mm.
3. SCR denitration system according to claim 2 is in advance except the device of puffed rice ash, it is characterised in that the drainage plate
In circular arc, front end and the tangent connection of entrapment plate, rear end is vertically aligned with the front end of adjacent entrapment plate.
4. SCR denitration system according to claim 2 is in advance except the device of puffed rice ash, it is characterised in that the flow straightener
In del, drainage plate lower end is placed in, wherein a line is on the extended line of entrapment plate.
5. SCR denitration system according to claim 1 is in advance except the device of puffed rice ash, it is characterised in that the separating plate
It is welded by two block size identical steel plates, angle is α=75～90 °, the summit of every piece of separating plate and the rear end of drainage plate
In same vertical direction, and at a distance of E=150～500mm, the fluoran stream surface of separating plate is mutually perpendicular to the extended line of entrapment plate.
6. SCR denitration system according to claim 1 is in advance except the device of puffed rice ash, it is characterised in that the separator
Concave groove type is presented, against direction of flow, 10～100 separators are arranged to two rows to concave surface, in being staggered in arrangement, each separator with
Base plate inclination angle is β=60～75 °, often arranges separator at a distance of W=100～180mm, and each column separator is at a distance of L=100～150mm.
7. a kind of dust collection method using above-mentioned SCR denitration pre-dedusting device, it is characterised in that comprise the steps：
(1) when the ash-laden gas for coming is flow through from boiler vertical well gas flue being redirected into horizontal flue, in the common of gravity and centrifugal force
Under effect, horizontal flue lower area is thrown toward, especially the larger puffed rice ash of particle diameter, againsts base plate motion, using this
Situation, arranges some catchers at the base plate of horizontal flue；
(2) flue gas of some entrainment greater particle size puffed rice ashes into ash bucket, and hits under the drainage of first piece of entrapment plate
Hit on separating plate, puffed rice ash is moved downward under gravity along separating plate side plate, and the hopper bottom that drops, flue gas exists
Under suction function, move upwards along separating plate side plate；
(3) flue gas of some entrainment greater particle size puffed rice ashes is entered under the collective effect of drainage plate and second piece of entrapment plate
Ash bucket, the process of repeat step (2)；
(4) flue gas of some entrainment medium grain size puffed rice ashes and cinder enters horizontal flue middle part, with first row separator
Groove surface clashes into, and flue gas bypasses groove surface and flows out from first row separator gap, and puffed rice ash and cinder face down along groove
Slide, ash bucket is entered by the outlet of bottom, the entrainment medium grain size puffed rice flow through from first row separator gap is grey and thick
The flue gas of ash clashes into the groove surface of second row separator, and repeats above procedure；
(5) flue gas of some entrainment small particle puffed rice ashes and fine ash enters horizontal flue rear portion, with the effect of two-layer drainage screen, portion
Divide ash to be intercepted and fall into ash bucket, the flue gas of Rao Liuhou enters uptake flue by the current balance function of deflector；
(6) the puffed rice ash into ash bucket region falls into the grey storehouse of hopper bottom under gravitational settling effect, and enters ash bucket area
The flue gas in domain then imports the main flume of horizontal flue under suction function from flue gas UNICOM mouth, also passes through the stream of deflector
Uptake flue is entered after effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940901.8A CN106621649B (en) | 2016-11-01 | 2016-11-01 | A kind of SCR denitration system removes the device and method of puffed rice ash in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610940901.8A CN106621649B (en) | 2016-11-01 | 2016-11-01 | A kind of SCR denitration system removes the device and method of puffed rice ash in advance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106621649A true CN106621649A (en) | 2017-05-10 |
| CN106621649B CN106621649B (en) | 2019-01-29 |
Family
ID=58821240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610940901.8A Active CN106621649B (en) | 2016-11-01 | 2016-11-01 | A kind of SCR denitration system removes the device and method of puffed rice ash in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106621649B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339327A (en) * | 2018-03-14 | 2018-07-31 | 武汉森源蓝天环境科技工程有限公司 | A kind of agriculture and forestry organic waste material power plant denitration Flue Gas Pretreatment Device |
| CN108339398A (en) * | 2018-04-28 | 2018-07-31 | 大唐环境产业集团股份有限公司 | Power station SCR system ash hopper device based on high centrifugal force flue and brave tooth plate |
| CN111686541A (en) * | 2020-05-08 | 2020-09-22 | 北新集团建材股份有限公司 | Dust removal device and dust removal equipment |
| CN114893725A (en) * | 2022-05-05 | 2022-08-12 | 中冶华天工程技术有限公司 | Novel coal gas drainage and pollution discharge pipeline system |
| CN115025878A (en) * | 2022-07-26 | 2022-09-09 | 武汉钢铁有限公司 | Method and system for pretreating and strengthening dust removal of flue gas of sintering machine head |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327406A (en) * | 2008-06-20 | 2008-12-24 | 北京博奇电力科技有限公司 | System and method for catalysis process of flue gas and used filtering system thereof |
| JP2009119384A (en) * | 2007-11-15 | 2009-06-04 | Ihi Corp | Flue gas denitrification apparatus |
| CN101732989A (en) * | 2010-01-08 | 2010-06-16 | 东南大学 | Selective catalytic reduction de-nitrification reactor of combined flue |
| CN102179156A (en) * | 2011-05-06 | 2011-09-14 | 东南大学 | Smoke denitration device for preventing catalyst from being plugged by popcorn ash |
| JP2013163751A (en) * | 2012-02-10 | 2013-08-22 | Nippon Steel & Sumitomo Metal Corp | Coke dry quenching facility |
| CN203598607U (en) * | 2013-10-25 | 2014-05-21 | 福建鑫泽环保设备工程有限公司 | Flue-gas denitrifying and pre-dedusting device |
| CN204933062U (en) * | 2015-09-25 | 2016-01-06 | 中国华电集团科学技术研究总院有限公司 | A kind of coal-burning power plant SCR pre-dedusting device |
-
2016
- 2016-11-01 CN CN201610940901.8A patent/CN106621649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009119384A (en) * | 2007-11-15 | 2009-06-04 | Ihi Corp | Flue gas denitrification apparatus |
| CN101327406A (en) * | 2008-06-20 | 2008-12-24 | 北京博奇电力科技有限公司 | System and method for catalysis process of flue gas and used filtering system thereof |
| CN101732989A (en) * | 2010-01-08 | 2010-06-16 | 东南大学 | Selective catalytic reduction de-nitrification reactor of combined flue |
| CN102179156A (en) * | 2011-05-06 | 2011-09-14 | 东南大学 | Smoke denitration device for preventing catalyst from being plugged by popcorn ash |
| JP2013163751A (en) * | 2012-02-10 | 2013-08-22 | Nippon Steel & Sumitomo Metal Corp | Coke dry quenching facility |
| CN203598607U (en) * | 2013-10-25 | 2014-05-21 | 福建鑫泽环保设备工程有限公司 | Flue-gas denitrifying and pre-dedusting device |
| CN204933062U (en) * | 2015-09-25 | 2016-01-06 | 中国华电集团科学技术研究总院有限公司 | A kind of coal-burning power plant SCR pre-dedusting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339327A (en) * | 2018-03-14 | 2018-07-31 | 武汉森源蓝天环境科技工程有限公司 | A kind of agriculture and forestry organic waste material power plant denitration Flue Gas Pretreatment Device |
| CN108339398A (en) * | 2018-04-28 | 2018-07-31 | 大唐环境产业集团股份有限公司 | Power station SCR system ash hopper device based on high centrifugal force flue and brave tooth plate |
| CN111686541A (en) * | 2020-05-08 | 2020-09-22 | 北新集团建材股份有限公司 | Dust removal device and dust removal equipment |
| CN114893725A (en) * | 2022-05-05 | 2022-08-12 | 中冶华天工程技术有限公司 | Novel coal gas drainage and pollution discharge pipeline system |
| CN115025878A (en) * | 2022-07-26 | 2022-09-09 | 武汉钢铁有限公司 | Method and system for pretreating and strengthening dust removal of flue gas of sintering machine head |
| CN115025878B (en) * | 2022-07-26 | 2024-08-09 | 武汉钢铁有限公司 | Reinforced dust removing method and system for flue gas pretreatment of sintering machine head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106621649B (en) | 2019-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106621649A (en) | Device and method for pre-removing popcorn ash of SCR denitration system | |
| CN102688629B (en) | SCR (selective catalytic reduction) denitration dedusting device | |
| CN204933062U (en) | A kind of coal-burning power plant SCR pre-dedusting device | |
| CN107684796B (en) | Waste gas dust removal system | |
| CN102728469B (en) | Vertical type wet process electric dust collector flow field optimizing device | |
| CN104841229B (en) | Combined dust removal device | |
| CN202638147U (en) | Selective catalytic reduction (SCR) denitration dedusting device | |
| CN106076044A (en) | Flue gas ash removal backwater segregation apparatus and flue gas ash removal method | |
| CN106621584A (en) | Centrifugal type pre-dedusting device for SCR (selective catalytic reduction) denitration | |
| CN106390608B (en) | A kind of pre-dedusting device for SCR denitration | |
| CN202983406U (en) | Pre-separating device used for high-temperature gas filter and filter thereof | |
| CN210631862U (en) | Large-scale integral oil mist collector | |
| CN205495059U (en) | Hydraulic engineering filter equipment | |
| CN106178703A (en) | Dewatering and dust removing device | |
| CN203315950U (en) | Efficient pretreatment device for smoke gas of industrial silicon '75 ferrosilicon' ore smelting furnace | |
| CN206304453U (en) | A kind of new economizer exit ash bucket | |
| CN207838519U (en) | A kind of large size bag filter water conservancy diversion even distribution device | |
| CN206103558U (en) | Spiral water gas separat device | |
| CN205886504U (en) | Flue gas dust removal returns water separator | |
| CN203971581U (en) | The pre-dedusting smoke distributing equipment of deduster inertia | |
| CN112267002A (en) | Flue gas micron-level particle separation device | |
| CN106731404A (en) | A kind of ultra-clean demister of vortex | |
| CN203944164U (en) | Solid-liquid separator and black water treatment system for the treatment of Heisui River | |
| CN209985534U (en) | Copper-containing white smoke sorting system | |
| CN203235382U (en) | Air box type bag type dust remover integrating high efficiency, cyclone and dust removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |