CN105999975B - A kind of dedusting demister - Google Patents
A kind of dedusting demister Download PDFInfo
- Publication number
- CN105999975B CN105999975B CN201610621598.5A CN201610621598A CN105999975B CN 105999975 B CN105999975 B CN 105999975B CN 201610621598 A CN201610621598 A CN 201610621598A CN 105999975 B CN105999975 B CN 105999975B
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- cylinder
- dedusting
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- component
- dehydration
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
Abstract
The invention provides a kind of dedusting demister, and it includes the cylinder being vertically arranged, and the cylinder has inner chamber, the outlet of gas after being purified for flue gas into the entrance of the inner chamber and output in the inner chamber is set on the cylinder；The entrance is arranged in the side wall of the cylinder, and positioned at the lower section of the outlet, is set in the lower section of the entrance and connected the inner chamber and the blow-off pipe of extraneous sedimentation basin；The dedusting demister also includes being arranged on the pre-atomized spray gun of the porch and the purification mechanism being arranged in the cylinder, and the purification mechanism includes the multiple baffle plate dehydration dedusting component of one-level, one-level spray assembly, rotation speedup dehydration dedusting component, two level spray assembly, the multiple baffle plate dehydration dedusting component of two level and the deflection plate dehydrating demisting component being fixedly installed on successively from top to bottom between the entrance and the outlet.The present invention efficiently dedusting and essence can be dehydrated, and gas flow circuit is short, and the pressure loss is small.
Description
Technical field
It is more particularly to a kind of that dedusting is carried out to the high-temperature gas containing flue dust the present invention relates to the technical field of dust separation
The device of demisting.
Background technology
Oxygen converter steelmaking is smelted using oxygen blast, in converting process, can produce the high-temperature gas containing volume of smoke, contain
Dust concentration is up to 100 grams per standard cubic meter (g/Nm3Per standard cubic meter, temperature is up to 1450 degrees Celsius for)~150 gram.Dust-laden
High-temperature gas need to rinse water smoke Jing Guo big flow at one-level venturi and two level Venturi tube, remove the overwhelming majority in flue gas
Dust, dust concentration is set to drop to 100 milligrams per standard cubic meter (mg/Nm3), temperature drops to dew-point temperature, now smoke moisture
Reach saturation, and be mingled with a large amount of mechanical waters.Hereafter after flue gas enters dehydrating tower removing mechanical water, then other process equipments are passed through
Processing.Existing dehydrating tower is by the way of the dehydration of one-level cyclone eddy flow, and it is dehydrated, and specific area is small, and dewatering efficiency is not high, and
Do not possess the function of refined dedusting.
The content of the invention
To solve above-mentioned technical problem, the present invention proposes a kind of dedusting demister efficiently to remove in ash-laden gas
Dust and water.
The present invention proposes a kind of dedusting demister, and the dedusting demister includes the cylinder being vertically arranged, the cylinder
Body has inner chamber, and gas after being purified for flue gas into the entrance of the inner chamber and output in the inner chamber is set on the cylinder
Outlet；The entrance is arranged in the side wall of the cylinder, and positioned at the lower section of the outlet, is set below the entrance
Put and connect the inner chamber and the blow-off pipe of extraneous sedimentation basin；
The dedusting demister also includes being arranged on the pre-atomized spray gun of the porch and is arranged in the cylinder
Purification mechanism, the purification mechanism includes being fixedly installed on one-level between the entrance and the outlet successively from top to bottom
Multiple baffle plate dehydration dedusting component, one-level spray assembly, rotation speedup dehydration dedusting component, two level spray assembly, the multiple baffle plate of two level
It is dehydrated dedusting component and deflection plate dehydrating demisting component.
Further, the one-level spray assembly includes being evenly distributed on same cross section along the circumference of the cylinder
Multiple first jets, the two level spray assembly are multiple on same cross section including being evenly distributed on along the circumference of the cylinder
Second nozzle.
Further, the bore of the spray orifice of the first jet is less than the bore of the spray orifice of the second nozzle.
Further, the mist footpath for the water smoke that the first jet sprays is more than or equal to 10 microns, and is less than or equal to
200 microns；The mist footpath for the water smoke that the second nozzle sprays is more than or equal to 50 microns, and less than or equal to 400 microns.
Further, the rotation speedup dehydration dedusting component includes upper cover, the eddy flow dress set gradually from top to bottom
Put and low head；
The polylith swirl vane that the swirl-flow devices include the body of tubular and are fixed on the outer wall of the body, each institute
The outer wall that swirl vane is each perpendicular to the body is stated, is had between the length direction of the swirl vane and the axial direction of the body
There is predetermined angle；
The upper cover is sealed at the upper end open of the body, and the middle part of the upper cover is upward, it is described on
End socket is tapered；The low head is sealed at the lower ending opening of the body, and the middle part of the low head is upward, described
Low head is in back taper.
Further, the upper cover and the low head include polylith steel plate triangular in shape, the steel plate point
Taper and back taper are not surrounded；
The both sides side of each steel plate is welded with the side of the adjacent steel plate respectively, the upper cover it is each described
Upper end of the base of steel plate respectively with the body is connected, the base of each steel plate of the low head respectively with the body
Lower end connection.
Further, the radius of the body is 15 times~25 times of the width of the swirl vane.
Further, multiple bearings, institute are fixedly connected between the outside of the low head and the inwall of the cylinder
State and multiple gussets are fixedly installed on the outer wall of body, the outside of the gusset is fixedly connected with the inwall of the cylinder.
Further, the deflection plate dehydrating demisting component is multiple on the same cross section of the cylinder including being arranged in
Baffling module, each baffling module include multiple vertically arranged deflection plates, and each deflection plate, which is parallel to each other and is spaced, to be set
Put, the longitudinal section undulate of each deflection plate；
Set what can be sprayed towards the deflection plate dehydrating demisting component in the top of the deflection plate dehydrating demisting component
Deashing backwashes spray gun.
Further, the multiple baffle plate dehydration dedusting component of one-level and the multiple baffle plate dehydration dedusting component of two level include bracket and from
It is interior to outer at least three steel pipes being arranged successively；
The bracket includes at least two support members arranged in a crossed manner, and the both ends of the support member are respectively fixedly connected with institute
State on the inwall of cylinder；Each steel pipe is vertical and is coaxially disposed, and the lower end of each steel pipe is shelved and is fixed on described
On bracket, the height of the upper end of the steel pipe gradually reduces from inside to outside.
The present invention is compared to the beneficial effect of prior art：The present invention dedusting demister can not only dedusting,
It can also be flue gas essence dehydration.The multiple baffle plate dehydration dedusting component of one-level, one-level spraying group are set gradually from top to bottom in cylinder
Part, rotation speedup dehydration dedusting component, two level spray assembly, the multiple baffle plate dehydration dedusting component of two level and deflection plate dehydrating demisting group
Part, and reverse-flow spray is used, good assimilation effect has been reached to dust, and gas flow circuit is short, and the pressure loss is small,
Energy consumption is small.
In addition, deflection plate can make flue gas flow to suddenly change, the water in flue gas and dust is collided because of centrifugal action
To deflection plate, so as to be trapped by deflection plate.The water smoke that the water smoke and two level spray assembly that one-level spray assembly sprays spray to the greatest extent may be used
It is covered on the whole cross section of cylinder energy, it is bigger than dehydration specific collection area, the needs of dedusting are met, damage the pressure of spray
Lose and reduce, dehydration efficiency of dust collection is high.
Brief description of the drawings
Fig. 1 is the schematic front view of the dedusting demister of the present invention；
Fig. 2 is Fig. 1 of present invention section B-B schematic top plan view；
Fig. 3 is Fig. 1 of present invention C-C sectional overhead schematic views；
Fig. 4 is Fig. 1 of present invention D-D sectional overhead schematic views；
Fig. 5 is Fig. 1 of present invention E-E sectional overhead schematic views；
Fig. 6 is schematic front view of the one-level spray assembly with cylinder annexation of the dedusting demister of the present invention；
Fig. 7 is schematic top plan view of the one-level spray assembly with cylinder annexation of the dedusting demister of the present invention；
Fig. 8 is part of the first jet with cylinder annexation of the one-level spray assembly of the dedusting demister of the present invention
Schematic diagram；
Fig. 9 is that the rotation speedup of the dedusting demister of the present invention is dehydrated dedusting component and the main view of cylinder annexation is shown
It is intended to；
Figure 10 is the schematic front view that the rotation speedup of the dedusting demister of the present invention is dehydrated the upper cover of dedusting component；
Figure 11 is that the low head of the rotation speedup dehydration dedusting component of the dedusting demister of the present invention is connected pass with cylinder
The schematic front view of system；
Figure 12 is Fig. 9 of present invention schematic top plan view；
Figure 13 is the three-dimensional signal that the rotation speedup of the dedusting demister of the present invention is dehydrated the swirl-flow devices of dedusting component
Figure；
Figure 14 is the main view signal that the rotation speedup of the dedusting demister of the present invention is dehydrated the swirl-flow devices of dedusting component
Figure；
Figure 15 is the schematic front view in Figure 12 of present invention K-K sections；
Figure 16 is the close-up schematic view at I in Figure 12 of the invention；
Figure 17 is the main view signal that the rotation speedup of the dedusting demister of the present invention is dehydrated the swirl vane of dedusting component
Figure；
Figure 18 is that the rotation speedup of the dedusting demister of the present invention is dehydrated the right side of the swirl vane of dedusting component regarding signal
Figure；
Figure 19 is the vertical view signal that the rotation speedup of the dedusting demister of the present invention is dehydrated the swirl vane of dedusting component
Figure；
Figure 20 is that the rotation speedup of the dedusting demister of the present invention is dehydrated the bearing of dedusting component and cylinder, low head connect
Connect the schematic front view of relation；
Figure 21 is Figure 20 of present invention H-H sectional overhead schematic views；
The right side that Figure 22 is Figure 20 of the present invention regards schematic diagram；
Figure 23 is the schematic top plan view of the deflection plate dehydrating demisting component of the dedusting demister of the present invention；
Figure 24 is the schematic front view of the deflection plate of the deflection plate dehydrating demisting component of the dedusting demister of the present invention；
Figure 25 is that the multiple baffle plate of one-level of the dedusting demister of the present invention is dehydrated the schematic front view of dedusting component；
Figure 26 is that the multiple baffle plate of one-level of the dedusting demister of the present invention is dehydrated the schematic top plan view of dedusting component.
Reference：
10- cylinders；12- entrances；14- is exported；16- blow-off pipes；
20- pre-atomized spray guns；
The multiple baffle plate dehydration dedusting component of 30- one-levels；32- support members；34- steel pipes；
40- one-level spray assemblies；42- first jets；
50- rotation speedup dehydration dedusting components；52- upper covers；54- bodys；55- gussets；
56- swirl vanes；58- low heads；59- bearings；
60- two level spray assemblies；
The multiple baffle plate dehydration dedusting component of 70- two levels；
80- deflection plate dehydrating demisting components；82- deflection plates；
90- deashings backwash spray gun.
Embodiment
Below in conjunction with accompanying drawing, the technical characteristic above-mentioned to the present invention and advantage are clearly and completely described, it is clear that institute
The embodiment of description is only the section Example of the present invention, rather than whole embodiments.
Refer to shown in Fig. 1 to Fig. 5, the present invention proposes a kind of dedusting demister, and dedusting demister includes setting vertically
The cylinder 10 put, cylinder 10 have an inner chamber, and inlet porting 12 and outlet 14, entrance 12 enter inner chamber for flue gas, gone out on cylinder 10
Gas after the output of mouth 14 purifies in the lumen；Entrance 12 is arranged in the side wall of cylinder 10, and positioned at the lower section of outlet 14, is being entered
The lower section of mouth 12 sets blow-off pipe 16, the communication with cavity of blow-off pipe 16 and extraneous sedimentation basin.
Dedusting demister also includes the pre-atomized spray gun 20 being arranged at entrance 12 and the purification being arranged in cylinder 10
Mechanism, purification mechanism include the multiple baffle plate dehydration dedusting of one-level being fixedly installed on successively from top to bottom between entrance 12 and outlet 14
Component 30, one-level spray assembly 40, rotation speedup dehydration dedusting component 50, two level spray assembly 60, the multiple baffle plate dehydration of two level remove
Dirt component 70 and deflection plate dehydrating demisting component 80.
More preferably, entrance 12 is close to the lower end of cylinder 10, the setting air inlet pipe at entrance 12, as shown in figure 5, air inlet pipe
Center line of the cylinder 10 in Fig. 5 in vertical direction is axially perpendicular to, enables flue gas in air inlet pipe tangentially into cylinder 10,
Pre-atomized spray gun 20 is arranged in air inlet pipe.As shown in figure 1, outlet 14 is arranged on the top of cylinder 10.In the present embodiment, row
Dirty pipe 16 is arranged on the bottom of the side wall of cylinder 10, and one is set in the cylinder 10 towards 16 inclined slope of blow-off pipe,
The inwall of the slope and cylinder 10 has collectively constituted ash bucket.Carry when the water of dust drops downward into and be accumulated in along slope
In ash bucket, the sewage in ash bucket can flow to blow-off pipe 16, so as in minimum point draining.
The dedusting demister of the present invention can not only dedusting, moreover it is possible to for flue gas essence dehydration.In cylinder 10 from top to bottom
The multiple baffle plate dehydration dedusting component 30 of one-level, one-level spray assembly 40, rotation speedup dehydration dedusting component 50, two level are set gradually
The multiple baffle plate dehydration dedusting component 70 of spray assembly 60, two level and deflection plate dehydrating demisting component 80, and reverse-flow spray is used, it is right
Dust has reached good assimilation effect, and gas flow circuit is short, and the pressure loss is small, and energy consumption is small.The present apparatus is arranged on
After fume desulfurizing tower, refined dedusting and dehydration are carried out to desulfurization fume, for the essence dehydration of flue gas after converter gas wet dedusting, gone back
The present apparatus can be positioned in other smoke processing systems, carry out refined dedusting and dehydration.
Further, refer to shown in Fig. 6 and Fig. 7, one-level spray assembly 40 includes being uniformly distributed along the circumference of cylinder 10
Multiple first jets 42 on same cross section, two level spray assembly 60 are same including being evenly distributed on along the circumference of cylinder 10
Multiple second nozzles on cross section.The ratio dehydration specific collection area of the dedusting demister of the present invention is big, meets the need of dedusting
Will, the pressure loss of spray is reduced, and dehydration efficiency of dust collection is high.
In the present embodiment, one-level spray assembly 40 includes six equally distributed first jets 42.First jet 42 and cylinder
The distance of the axis of body 10 is about the half of the radius of cylinder 10, as shown in fig. 6, the spray-cone angle A of first jet 42 is 115
Degree, make the area coverage of the water smoke of six ejections of first jets 42 larger.
More preferably, the water smoke that the water smoke and two level spray assembly 60 that one-level spray assembly 40 sprays spray covers as much as possible
On the whole cross section of cylinder 10, as shown in fig. 7, the water smoke almost all that first jet 42 sprays is covered in the horizontal stroke of cylinder 10
On section.According to the internal diameter of cylinder 10 and flue gas input quantity, the first jet 42 of setting and the quantity of second nozzle can be different.
More preferably, first jet 42 is Bidirectional nozzle, has two opposite spouts of injection direction, as shown in figure 1, first
Nozzle 42 being capable of spray and downwards spray upwards simultaneously.The spout sprayed downwards is dehydrated dedusting component 30 towards the multiple baffle plate of one-level below
Spray, meanwhile, the spout sprayed upwards can spray towards the rotation speedup dehydration dedusting component 50 above it, second nozzle direction rotation
Turn speedup dehydration dedusting component 50 to spray.Pre-atomized spray gun 20 relative to single first jet 42 and single second nozzle,
The flow of pre-atomized spray gun 20 is relatively large.
Further, the bore of the spray orifice of first jet 42 is less than the bore of the spray orifice of second nozzle, that is to say, that the
The mist footpath for the water smoke that one nozzle 42 sprays is less than the mist footpath for the water smoke that second nozzle sprays.Further, first jet 42 sprays
The mist footpath of the water smoke gone out is more than or equal to 10 microns, and less than or equal to 200 microns；The mist footpath for the water smoke that second nozzle sprays is big
In or equal to 50 microns, and less than or equal to 400 microns.
In the dedusting demister of the present invention, in order to reach good assimilation effect, it is designed in cylinder 10 reverse-flow
Spray, sets two layers of spraying layer (i.e. one-level spray assembly 40 and two level spray assembly 60), every layer of spraying layer includes several altogether
Efficient atomization solid nozzle (i.e. first jet 42 and second nozzle).Absorbing liquid is sprayed by atomization solid nozzle, and atomization is solid
Nozzle is evenly arranged on the cross section in cylinder 10, and what it was ejected can cover whole transversal into solid tapered slurries
Face, while the specific surface area needed for dedusting is met, the pressure loss caused by spray can be reduced to minimum by the present invention.
Atomization solid nozzle has the characteristics that：
(1) fogging degree of atomization solid nozzle is good, and atomizing particle size is small, and the specific surface area of water smoke is big, along with atomization is real
The scientific and reasonable arrangement of heart nozzle location so that it is formed in fume treatment area is atomized section without leak, overlapping few absorbing liquid,
The touch opportunity of flue gas and water smoke is improved, gas liquid interfacial area is big, and the balling-up to flue dust provides good condition.
Atomization solid nozzle is arranged to, and the water smoke covering of ejection is thorough, not only reduces the number of atomization solid nozzle,
Injection flow rate can also be reduced, is all advantageous to reduce the pressure loss.Refer to shown in Fig. 8, the ejection end of second nozzle 42 passes through cylinder
10 side wall, and seal and be fixed on cylinder 10, the other end of second nozzle is located at outside cylinder 10, for introducing absorbing liquid, makes
It forms water smoke in ejection end.
(2) flow channel for liquids being atomized in solid nozzle is big and unimpeded, has good anti-blocking performance.
(3) it is atomized solid nozzle to make using special stainless steel, there is good anticorrosion antiwear performance.
(4) nozzle small volume, installation are easy to clean.
Further, refer to shown in Fig. 9, Figure 10 and Figure 11, rotation speedup dehydration dedusting component 50 is included from top to bottom
Upper cover 52, swirl-flow devices and the low head 58 set gradually.Refer to shown in Figure 12, Figure 13 and Figure 15, swirl-flow devices include
The body 54 of tubular and the polylith swirl vane 56 being fixed on the outer wall of body 54, each swirl vane 56 are each perpendicular to body 54
Outer wall, refer to shown in Figure 14, there is predetermined included angle B between the length direction of swirl vane 56 and the axial direction of body 54,
In the present embodiment, included angle B is 35 degree.Upper cover 52 is sealed at the upper end open of body 54, as shown in Figure 10, upper cover 52
Middle part is upward, and upper cover 52 is tapered；Low head 58 is sealed at the lower ending opening of body 54, as shown in figure 11, lower envelope
First 58 middle part is upward, and low head 58 is in back taper.
Further, as shown in Figure 10 and Figure 11, upper cover 52 and low head 58 include polylith steel triangular in shape
Plate, steel plate are respectively enclosed to taper and back taper；The both sides side of each steel plate is welded with the side of adjacent steel plate respectively, upper cover
Upper end of the base of 52 each steel plate respectively with body 54 is connected, the base of each steel plate of low head 58 respectively with body 54
End connection.
Further, the radius of body 54 is 15 times~25 times of the width of swirl vane 56.As shown in figure 12, body
54 radius is much larger than the width of swirl vane 56, refers to shown in Figure 16, Figure 17, Figure 18 and Figure 19, in the present embodiment, eddy flow
Blade 56 is thin-wall part, and its thickness is 12 millimeters, and length is 624 millimeters, and lower end width is 70 millimeters, incorporated by reference to Figure 16 and Figure 19
Shown, the inner side edge of swirl vane 56 is fixedly connected with body 54, in Figure 19 top view, the outer side edges of swirl vane 56
Arc radius is 1600 millimeters.The radius of body 54 is 23 times of the width of swirl vane 56.
Further, refer to shown in Figure 20, Figure 21 and Figure 22, the outside of low head 58 and cylinder 10 inwall it
Between be fixedly connected with multiple bearings 59, low head 58 is fixedly connected in cylinder 10 by bearing 59, make rotation speedup dehydration remove
Dirt component 50 can bear flue gas and be accelerated through caused impulsive force.In the present embodiment, bearing 59 is one section of nothing being in tilted layout
Steel pipe is stitched, its upper end is welded and fixed with low head 58, and its lower end is welded and fixed in cylinder 10 by steel plate.
Incorporated by reference to shown in Figure 12 and Figure 13, being fixedly installed multiple gussets 55 on the outer wall of body 54, the outside of gusset 55 with
The inwall of cylinder 10 is fixedly connected.In the present embodiment, the width of gusset 55 is more than swirl vane (along the size of the radial direction of body 54)
56 width, when flue gas during rotation speedup dehydration dedusting component 50 by being accelerated, impulsive force makes rotation speedup be dehydrated dedusting group
Part 50 vibrates, and swirl vane 56 can tremble, and because gusset 55 is fixedly connected with the inwall of cylinder 10, body 54 will not
Shake, ensure that the stability of swirl vane 56, the damage swirl vane 56 that collides with is avoided, so as to play protection swirl vane
56 effect.
The dedusting demister of the present invention, flue gas is in cylinder 10 by the primary of the multiple baffle plate dehydration dedusting component 30 of one-level
Purification, then spun up in the slit between the adjacent swirl vane 56 of rotation speedup dehydration dedusting component 50, it is primary
Flue gas rotation after purification rises, and because swirl-flow devices have guiding and relay effect, and the kinetic energy of flue gas itself can be utilized to produce
Raw air swirl, gas-liquid two-phase fully contact, and carry out heat and mass；In addition, the slurries on swirl-flow devices can be from center to cylinder
10 inwall flowing, adds retention time of the slurries on swirl vane 56, so efficiency of dust collection is very high.For different flue gases
Specific operating mode, can also be to the size, the anglec of rotation, the elevation angle of swirl vane 56 (or the length direction and pipe of swirl vane 56
Predetermined included angle B between the axial direction of body 54) and resistance be controlled.
Further, refer to shown in Figure 23 and Figure 24, deflection plate dehydrating demisting component 80 includes being arranged in cylinder 10
Multiple baffling modules on same cross section, each baffling module include multiple vertically arranged deflection plates 82, each phase of deflection plate 82
Mutually parallel and interval setting, the longitudinal section undulate of each deflection plate 82.Corrugated deflection plate 82 can make the flow direction of flue gas dash forward
So change, the water in flue gas and dust is collided deflection plate 82 because of centrifugal action, so as to be trapped by deflection plate 82.
Can be towards deflection plate dehydrating demisting component 80 as shown in figure 1, being set in the top of deflection plate dehydrating demisting component 80
The deashing backwash spray gun 90 of spray.The dedusting demister of the present invention has slurries fouling after the operation of long period
Phenomenon, the mud cake that fouling is formed is bonded on deflection plate 82, in order to prevent the excessive obstruction flue gas of mud cake volume from circulating upwards
Passage, set the deashing sprayed to deflection plate dehydrating demisting component 80 to backwash spray gun 90 in cylinder 10, recoiled using deashing
Wash the water under high pressure that spray gun 90 sprays out to be washed away, so as to wash out the mud cake on deflection plate 82.
Further, refer to shown in Figure 25 and Figure 26, the multiple baffle plate dehydration dedusting component 30 of one-level and the multiple baffle plate of two level take off
Water dedusting component 70 includes bracket and at least three steel pipes 34 being arranged successively from inside to outside.Bracket includes at least two intersections
The support member 32 of setting, the both ends of support member 32 are respectively fixedly connected with the inwall of cylinder 10；Each steel pipe 34 is vertical and same
Axle is set, and the lower end of each steel pipe 34 is shelved and is fixed on bracket, and the height of the upper end of steel pipe 34 gradually reduces from inside to outside.
The course of work of the present invention is as follows：Flue gas (dusty gas) is first in the pre-atomized through larger flow in air inlet pipe
Spray gun 20 is sprayed, and flue gas is tentatively cooled and dust is fully infiltrated, and the flue gas after then infiltrating is tangentially into cylinder 10
And rotating vortex is produced, further along the adherent rising in axial direction of cylinder 10, first flow through the multiple baffle plate dehydration dedusting component 30 of one-level and enter
Row dehydration rough dedusting；Then sprayed through one-level spray assembly 40, the adjacent swirl vane of rotated speedup dehydration dedusting component 50
Slit between 56 carries out speedup, and aggravates the rotation of flue gas, so as to further remove the fine dust particles in flue gas；Pass through again
After two level spray assembly 60 sprays, flow through the multiple baffle plate dehydration dedusting component 70 of two level and carry out slightly being dehydrated dedusting；Finally, the gas of rotation
Flow under multiple parallel in deflection plate dehydrating demisting component 80 and spaced waveform deflection plate 82 retardation suddenly
Stop rotation, baffling, exported after carrying out essence dehydration dedusting from the outlet 14 of cylinder 10, into follow-up equipment pipe.In fine purifiation process
The middle dust washed falls into the ash bucket of lower section with draining, and the sedimentation basin in the external world is introduced by blow-off pipe 16.
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, it will be appreciated that the foregoing is only the specific embodiment of the present invention, the protection being not intended to limit the present invention
Scope.Particularly point out, to those skilled in the art, within the spirit and principles of the invention, that is done any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of dedusting demister, it is characterised in that the dedusting demister includes the cylinder being vertically arranged, the cylinder
Gas after being purified for flue gas into the entrance of the inner chamber and output in the inner chamber is set with inner chamber, on the cylinder
Outlet；The entrance is arranged in the side wall of the cylinder, and positioned at the lower section of the outlet, is set in the lower section of the entrance
Connect the blow-off pipe of the inner chamber and extraneous sedimentation basin；
The dedusting demister also includes being arranged on the pre-atomized spray gun of the porch and is arranged on net in the cylinder
Change mechanism, the one-level that the purification mechanism includes being fixedly installed on successively between the entrance and the outlet from top to bottom is kept off again
Plate dehydration dedusting component, one-level spray assembly, rotation speedup dehydration dedusting component, two level spray assembly, the multiple baffle plate dehydration of two level
Dedusting component and deflection plate dehydrating demisting component；
The rotation speedup dehydration dedusting component includes upper cover, swirl-flow devices and the low head set gradually from top to bottom；
The polylith swirl vane that the swirl-flow devices include the body of tubular and are fixed on the outer wall of the body, each rotation
Stream blade is each perpendicular to the outer wall of the body, has between the length direction of the swirl vane and the axial direction of the body pre-
Fixed angle；
The upper cover is sealed at the upper end open of the body, and the middle part of the upper cover is upward, the upper cover
It is tapered；The low head is sealed at the lower ending opening of the body, and the middle part of the low head is upward, the lower envelope
Head is in back taper.
2. dedusting demister according to claim 1, it is characterised in that the one-level spray assembly is included along the cylinder
The circumference of body is evenly distributed on multiple first jets on same cross section, and the two level spray assembly is included along the cylinder
The multiple second nozzles being circumferentially evenly distributed on same cross section.
3. dedusting demister according to claim 2, it is characterised in that the bore of the spray orifice of the first jet is less than
The bore of the spray orifice of the second nozzle.
4. the dedusting demister according to Claims 2 or 3, it is characterised in that the water smoke that the first jet sprays
Mist footpath is more than or equal to 10 microns, and less than or equal to 200 microns；The mist footpath for the water smoke that the second nozzle sprays is more than or waited
In 50 microns, and less than or equal to 400 microns.
5. dedusting demister according to claim 1, it is characterised in that the upper cover and the low head include
Polylith steel plate triangular in shape, the steel plate are respectively enclosed to taper and back taper；
The both sides side of each steel plate is welded with the side of the adjacent steel plate respectively, each steel plate of the upper cover
Upper end of the base respectively with the body be connected, the base of each steel plate of the low head respectively with the body
End connection.
6. dedusting demister according to claim 1, it is characterised in that the radius of the body is the swirl vane
15 times~25 times of width.
7. dedusting demister according to claim 1, it is characterised in that in the outside of the low head and the cylinder
Inwall between be fixedly connected with multiple bearings, be fixedly installed multiple gussets on the outer wall of the body, the outside of the gusset with
The inwall of the cylinder is fixedly connected.
8. dedusting demister according to claim 1, it is characterised in that the deflection plate dehydrating demisting component includes row
The multiple baffling modules being listed on the same cross section of the cylinder, each baffling module include multiple vertically arranged bafflings
Plate, each deflection plate are parallel to each other and are arranged at intervals, the longitudinal section undulate of each deflection plate；
The deashing that can be sprayed towards the deflection plate dehydrating demisting component is set in the top of the deflection plate dehydrating demisting component
Backwash spray gun.
9. dedusting demister according to claim 1, it is characterised in that the multiple baffle plate dehydration dedusting component of one-level and two level
Multiple baffle plate dehydration dedusting component includes bracket and at least three steel pipes being arranged successively from inside to outside；
The bracket includes at least two support members arranged in a crossed manner, and the both ends of the support member are respectively fixedly connected with the cylinder
On the inwall of body；Each steel pipe is vertical and is coaxially disposed, and the lower end of each steel pipe is shelved and is fixed on the bracket
On, the height of the upper end of the steel pipe gradually reduces from inside to outside.
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| CN201610621598.5A CN105999975B (en) | 2016-08-01 | 2016-08-01 | A kind of dedusting demister |
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| CN201610621598.5A CN105999975B (en) | 2016-08-01 | 2016-08-01 | A kind of dedusting demister |
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| CN106823578A (en) * | 2017-03-03 | 2017-06-13 | 北京朗净时代环境科技有限公司 | A kind of cyclone demisting dust arrester |
| CN109972583A (en) * | 2017-12-28 | 2019-07-05 | 中国铁建高新装备股份有限公司 | A kind of dust-extraction unit and corresponding dust removal method |
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| DE2527918C2 (en) * | 1975-06-23 | 1986-02-27 | Wolfgang Dipl.-Ing. 8000 München Berz | Device for separating dust contained in a gas |
| CN2278521Y (en) * | 1996-12-10 | 1998-04-15 | 叶湛 | Double swirl blade dust-remover |
| CN101505852B (en) * | 2006-11-06 | 2013-03-27 | 三菱重工业株式会社 | Dust collector |
| CN103357264B (en) * | 2013-07-23 | 2015-12-09 | 南宁职业技术学院 | A kind of wet flue gas desulfurization tower |
| CN104415628B (en) * | 2013-08-19 | 2016-06-01 | 江苏博际喷雾系统股份有限公司 | Containing dirt vapour stream flue gas Wet-type high-efficient wet down cleaning apparatus |
| CN105477967A (en) * | 2015-12-25 | 2016-04-13 | 史玉库 | Wet type flue gas desulfurization dust remover |
| CN205903751U (en) * | 2016-08-01 | 2017-01-25 | 中冶京诚工程技术有限公司 | Dust removal defogging device |
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