CN206631387U - Minimum discharge desulfurization removes fine dirt device - Google Patents
Minimum discharge desulfurization removes fine dirt device Download PDFInfo
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- CN206631387U CN206631387U CN201720368544.2U CN201720368544U CN206631387U CN 206631387 U CN206631387 U CN 206631387U CN 201720368544 U CN201720368544 U CN 201720368544U CN 206631387 U CN206631387 U CN 206631387U
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- demister
- flue
- whiz
- fine dirt
- desulfurization
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Abstract
It the utility model is related to minimum discharge desulfurization and remove fine dirt device, liquid bath including main tower and main tower bottom, main tower bottom is provided with main tower outlet flue, and main tower outlet flue has been sequentially connected with first order horizontal flue, gas-liquid sedimentation flue and second level horizontal flue；Gas approach is provided with the top of main tower, is disposed with flue gas water conservancy diversion air distribution plate passage in main tower from top to bottom, flue gas prewets cooling spraying layer, desulfurization except fine dirt spraying layer, triangle grid block piece layer and desulfurization remove fine dirt device impact head；It is provided with first order horizontal flue first and second V-arrangement whiz formula demister, the 3rd V-arrangement whiz formula demister is provided with the horizontal flue of the second level, first, second and third V-arrangement whiz formula demister it is front and rear, be provided with mist eliminator flushing nozzle, second level horizontal flue end is provided with exhanst gas outlet.The utility model desulfurization discharge standard is up to 5mg/m3Below.
Description
Technical field
It the utility model is related to a kind of minimum discharge desulfurization and remove fine dirt device, can be applied to boiler, converter, stove and matched somebody with somebody
Put after electric cleaner or sack cleaner, directly can also configure after fuel-oil or fuel-gas boiler, fine dirt is removed for desulfurization
Use.
Background technology
With industrialized development, the influence of the discharge of industrial waste gas thing to environment increasingly highlights, SO2Deng waste gas and micro-
The accumulation of fine dust particles thing in an atmosphere causes more serious to haze sky, and therefore, country is to the discharge standard of industrial waste gas thing
It is increasingly strict, the desulfurization of minimum discharge is developed except fine dirt equipment is significant.
Following five side be present in the traditional desulfurizing tower configured at present after the various dedusters such as boiler, converter, stove
The problem of face.
First, flue gas is entered in tower downwards from tower lower tangential in 15 degree of angles, and flue gas circumferentially first makees outward turning after entering tower
Motion, then does inward turning motion again, then is upward through orifice plate or grid, arranges uneven, spy in tower so to flue gas flow field
It is not for boiler of power plant Generator Set, flue gas flow field is arranged in tower uniformly just more difficult, flue gas arrangement inequality
Even, desulfuration efficiency just improves to get on；Moreover, to enter tower mode resistance very big for this flue gas, energy consumption is virtually added.
Second, the spray direction in most of desulfurizing tower towers is downward, and flue gas flow direction is upward, because of spray droplet
Acted on by downward acceleration of gravity, quickly, flue gas is very short with spray droplet time of contact for falling speed.On the other hand,
Flue gas is continuous phase in tower, and spray droplet is dispersed phase, in whole flue gas blends mass transfer chemical reaction process with spray
There is critical limitation, there is edge effect.The standard for wanting to reach national desulfurization and dedusting is difficult, and every layer of spray
Also result in very big flue gas resistance.
3rd, the temperature of flue gas is to be entered with more than 100 degree in tower, and upward heat smoke runs into downward spray
Drop, which will become substantial amounts of vapours, vapours, will produce heat buoyancy, at this moment with SO existing for mist3In flue gas
Fine dirt harmful substance the top of tower will be pushed up to by heat buoyancy, form acidic oxide aerosol and other nuisances
Matter aerosol, even wet cottrell also are difficult to them to remove completely, cause it to be easy to be excluded and caused outside tower
Atmosphere pollution.
4th, the demister used in existing desulfurizing tower is mostly folded plate type, for the acidity that particle diameter is less than 3 microns
The removing of aerosol, its is helpless.Because the distance between chevron mist eliminator folded plate is limited, velocity of flue gas is limited, and folded plate type removes
Day with fog plate folding during manufacture and use turns that passage is few, and plate is very low away from width, demisting efficiency；It is more that plate folding turns passage, plate away from
It is narrow, can improve demisting efficiency, but when rinsing inside leave dead angle, easily cause blocking, blowing out can be caused to show during most serious
As occurring.The harmful substance aerosol concentration being discharged into after demister in air is higher, and particle diameter more stops in an atmosphere less than PM2.5
The time stayed is longer, caused by haze weather occur frequency it is higher, environmental pollution is more serious.
5th, existing desulfurizing tower typically all enters cigarette down, and some wet cottrells are designed in the top of tower, Liang Zhegao
Degree adds up will be more than 40 meter, and the so installation to equipment and later maintenance all brings many inconveniences.
The content of the invention
For above-mentioned prior art deficiency, the utility model provides a kind of minimum discharge desulfurization and removes fine dirt device.Flue gas exists
Flow field in tower is evenly distributed, and resistance is small, and spraying the drop disposably sprayed can repeatedly be utilized, spray droplet
Dispersed phase becomes continuous phase.Moreover, flue gas can also in liquid bath water-bath washing in desulfurizing agent, demister energy efficient fine demisting,
Without clogging.On-line rinsing is not carried secretly, and minimum discharge is fully achieved in harmful substances from flue gases.
The technical solution adopted in the utility model is as follows：
A kind of minimum discharge desulfurization removes fine dirt device, including main tower (7) and the liquid bath for being arranged on main tower (7) bottom
(9), described main tower (7) bottom, which is located on liquid bath (9), is provided with main tower outlet flue (12), main tower outlet flue (12)
First order horizontal flue (13) is connected with, described first order horizontal flue (13) is connected with gas-liquid sedimentation flue (17), described
Gas-liquid sedimentation flue (17) be connected with second level horizontal flue (18)；
Gas approach (1) is provided with the top of the main tower (7), cigarette is disposed with from top to bottom in main tower (7)
Conductance spreads aerofoil passage (2), flue gas is prewetted cooling spraying layer (3), desulfurization are except fine dirt spraying layer (4), triangle grid block piece
Layer (6) and desulfurization remove fine dirt device impact head (8)；Described flue gas prewet cooling spraying layer (3) and desulfurization except fine dirt spray
Layer (4) is made up of the shower for being provided with nozzle respectively, and the direction of nozzle spray is upward, towards the direction of gas approach (1)；Institute
By two layers of set square, dislocation arrangement forms the triangle grid block piece layer (6) stated up and down, and described set square is two pieces of rectangular slab groups
Into cross section be triangle component, the direction of the corner angle of set square towards gas approach (1)；Described desulfurization removes fine dirt
By two layers of grid, dislocation arrangement is formed device impact head (8) up and down, and upper strata grid is made up of set square, and lower floor's grid is by triangle rectangle
Plate form, described triangle rectangular slab be set square downward vertical set two pieces of rectangular-plate-shapeds into cross section above be triangle
Shape, the component that lower section is rectangle；
Described triangle grid block piece layer (6) and desulfurization, which remove, is provided with grid gear above fine dirt device impact head (8)
Part flooding nozzle (5), the nozzle of grid block piece flooding nozzle (5) spray to the direction of liquid bath (9)；In described liquid bath (9) side wall
It is provided with water level control overflow pipe (11)；
First of V-arrangement whiz formula demister (15) and second are fixedly installed in described first order horizontal flue (13)
V-arrangement whiz formula demister (16), the 3rd V-arrangement whiz formula demister is fixedly installed in described second level horizontal flue (18)
(19), front and rear, second V-arrangement whiz formula demister (16) front and rear and the 3rd V of first of V-arrangement whiz formula demister (15)
The front and rear of shape whiz formula demister (19) is respectively arranged with mist eliminator flushing nozzle (14), described second level horizontal flue (18)
End is provided with exhanst gas outlet (20).
According to the utility model, it is preferred that described flue gas water conservancy diversion air distribution plate passage (2) is by being connected to main tower (7)
Air distribution plate forms, it is further preferred that the quantity of air distribution plate is 7-30 roads.Air distribution plate is that multiple tracks steel plate is welded on main tower inwall
On, a plurality of exhaust gases passes are divided into, flue gas is entered in flue gas water conservancy diversion air distribution plate passage (2) from gas approach (1) makes smoke distribution
Uniformly downwards.
According to the utility model, it is preferred that described flue gas prewet cooling spraying layer (3) be divided into two layers, every layer by setting
The shower composition of nozzle.Shower is all fixed on the crossbeam in main tower (7), and the direction of spray is all upward, that is, is sprayed
It is relative with flue gas downwardly direction, the drop sprayed upwards reach a certain height and turned round to the direction of gas approach (1)
Leaching downwards falls goes in the same direction with flue gas.
According to the utility model, it is preferred that described desulfurization is divided into four layers except fine dirt spraying layer (4), and every layer by setting
It is made up of the shower of nozzle.Every layer of shower is all fixed on the crossbeam in main tower (7), and the direction of spray is all upward
, that is, the direction of gas approach (1) is sprayed to, is relative with flue gas downwardly direction, the drop sprayed upwards reaches certain height
Degree is turned round leaching downwards and fallen again, is gone in the same direction with flue gas.
According to the utility model, it is preferred that the triangle grid block piece layer (6) is divided into three groups, and every group by two layers of trigonal lattice
Grid block piece forms, and described triangle grid block piece is set square, and every group of triangle grid block piece layer (6) is separately positioned on desulfurization except micro-
Below thin dirt spraying layer (4).Triangle grid block piece is fixed on the crossbeam in main tower (7), and spray droplet leaching falls in triangle
Grid block piece forms moisture film on inclined-plane so that spray liquid becomes continuous by the drop of dispersed phase on triangle grid block piece inclined-plane
Phase, contacted with the comprehensive zero distance of flue gas.
According to the utility model, it is preferred that be provided with desulfurizing agent (10), the liquid of desulfurizing agent (10) in described liquid bath (9)
Face and desulfurization leave space between removing fine dirt impact head (8).Desulfurization is except lower floor's grid of fine dirt device impact head (8) is by triangle
Rectangular slab forms, and it is internally formd a plurality of Wen's rectangular channel, and gas-liquid enters desulfurization except fine dirt device impact head (8)
Condensed in Wen's rectangular channel, then carry out water-bath washing in the desulfurizing agent (10) in spirt liquid bath (9) again.
According to the utility model, water level control overflow pipe (11) is provided with main tower (7) the bottom liquid bath (9), is
In order that desulfurization maintains a certain distance except the liquid level of fine dirt impact head (8) and the desulfurizing agent (10) in liquid bath (9).Trigonal lattice
Grid block piece layer (6) and desulfurization above fine dirt device impact head (8) except grid block piece flooding nozzle (5) is respectively provided with, in desulfurization
It is rinsed when tower is out of service.
According to the utility model, it is preferred that first of V-arrangement whiz formula demister (15), second V-arrangement whiz formula demister
(16) formed with the 3rd V-arrangement whiz formula demister (19) by the V-shaped arrangement of whiz；
Described whiz is by the first demister blade (15-A), the second demister blade (15-B) that be arranged in parallel successively
With the 3rd demister blade (15-C) form, between the first demister blade (15-A) and the second demister blade (15-B) and
Exhaust gases passes, the first demister blade (15- are formed between second demister blade (15-B) and the 3rd demister blade (15-C)
A) and the 3rd demister blade (15-C) is provided with outside protuberance, and described protuberance is by the first tabs of demister (15-
2), the tabs of demister second (15-3) and the tabs (15-4) of demister the 3rd are sequentially connected with composition, the described folding of demister first
Piece (15-2) and the tabs of demister second (15-3) are straight plate, the folding of demister first in the first demister blade (15-A)
The angle towards outside is formed between piece (15-2) and the first demister blade (15-A), in the 3rd demister blade (15-C)
The angle towards outside, the folding of demister second are formed between the tabs of demister first (15-2) and the 3rd demister blade (15-C)
Piece (15-3) is parallel with the first demister blade (15-A) and the 3rd demister blade (15-C), the tabs (15-4) of demister the 3rd
For circular arc plate so that the tabs of demister second (15-3) and the first demister blade (15- in the first demister blade (15-A)
A by demister the 3rd tabs (15-4) arc transition between), the tabs of demister second in the 3rd demister blade (15-C)
Pass through demister the 3rd tabs (15-4) arc transition between (15-3) and the 3rd demister blade (15-C)；Positioned at protuberance
Flow deflector (15-5) and whiz piece (15-6), described flow deflector (15-5) and whiz piece (15-6) point are provided with exhaust gases passes
It is not fixedly installed with the second demister blade (15-B), described whiz piece (15-6) is semicircular arc plate and semicircular arc mouth
Towards flue gas inlet channel, described flow deflector (15-5) is tangentially fixedly installed with whiz piece (15-6).The shape of all whiz
Shape is identical.
The operation principle of V-arrangement whiz formula demister is：Flue gas, which enters in demister whiz, first does a convolution 180 degree fortune
It is dynamic, a rotation 180 degree motion to the left or to the right is then done again, is formed aerosol twice and is centrifuged, finally utilizes in passage
Corner collision third time aerosol separation.Front and rear, the second V-arrangement whiz formula demisting of first of V-arrangement whiz formula demister (15)
The front and rear and the 3rd V-arrangement whiz formula demister (19) of device (16) front and rear be respectively arranged with mist eliminator flushing nozzle (14) and can determined
When to V-arrangement whiz formula mist eliminator flushing.
According to the utility model, it is preferred that first of V-arrangement whiz formula demister (15), second V-arrangement whiz formula demister
(16) and the 3rd V-arrangement whiz formula demister (19) whiz whiz piece (15-6) diameter be sequentially reduced so that at a high speed essence
The ability of thin processing flue fog drip strengthens successively.
According to the utility model, it is preferred that first of V-arrangement whiz formula demister (15), second V-arrangement whiz formula demister
(16) and the quantity of whiz of the 3rd V-arrangement whiz formula demister (19) is 20-200.
According to the utility model, it is preferred that first order horizontal flue (13) and second level horizontal flue (18) are parallel, institute
The gas-liquid sedimentation flue (17) stated is vertically arranged with first order horizontal flue (13) and second level horizontal flue (18)；
It is further preferred that first order horizontal flue (13) and second level horizontal flue (18) are horizontally disposed, gas-liquid
Sedimentation flue (17) is arranged on the lower section of first order horizontal flue (13)；
It is further preferred that described gas-liquid sedimentation flue (17) bottom is provided with liquid holding groove.So gas-liquid sedimentation flue
(17) just have two 90 degree it is curved so that flue gas is run from the top down, and droplet formation is collided and then condensed when curved by 90 degree, logical
Cross self gravitation acceleration further to settle, the droplet not settled can be by the 3rd V-arrangement whiz formula demisting after due to condensation increasing
Device (19) further removes.
The beneficial effects of the utility model are embodied in：
1st, flue gas enters in tower from the top gas approach of main tower, by flue gas water conservancy diversion air distribution plate passage that flue gas is uniform
Distribution is downward, is prewetted cooling spraying layer in two layers of flue gas that main tower internal upper part is set, the drop sprayed upwards with downward 100 degree
Become a large amount of vapours after heat smoke contact above, while produce the top that upward heat buoyancy concentrates on main tower.For
Remove the SO of mist in flue gas3Easily it is captured with the fine dirt of wetting and creates advantage.
2nd, the four layers of desulfurization set in main tower middle and upper part remove fine dirt device spraying layer, spray drop and downward cigarette upwards
Gas phase is handed over, and the drop for spraying ejection breaks through fine dirt surface air film at a high speed, makes to collide cohesion between fine dirt and be captured.Spray
Drop reaches up to certain altitude and turned round again to be drenched downwards, is contacted with smoke secondary, is completed second of desulfurization except fine dirt and take off
Except other harmful substance processes.The liquid that leaching falls downwards in main tower, which is dropped on triangle grid block piece inclined-plane, forms liquid film,
The dispersed phase of spray droplet becomes continuous phase on triangle grid block piece inclined-plane.The drop that leaching falls downwards constantly washes away trigonal lattice again
Grid block piece inclined-plane, constantly updates liquid film, is contacted with the comprehensive zero distance of flue gas, complete third time desulfurization except fine dirt and other
Harmful substance process.Due to the setting of main tower Triangle ID grid block piece layer, gas-liquid is slowed decrease speed downwards, add
Residence time in tower.
3rd, the desulfurization set in the bottom of main tower removes fine dirt impact head, and gas-liquid enters in impact head and led in Wen's rectangle
Condensed in road, then in desulfurizing agent in gas-liquid mixture spirt liquid bath, at this moment desulfurizing agent forms substantial amounts of bubble, continually
Gush out liquid level, evoke substantial amounts of foam, form bubbling area, the SO in flue gas2、SO3, HCl, HF and the fine dirt of heavy metal and its
His harmful substance, as one time one time is washed by rubbing in a leviathan, complete the 4th desulfurization and remove fine dirt
And other harmful substance processes.
4th, for the utility model for sulphur coal, desulfurization discharge standard can be less than national standard, for low-sulfur coal
For, desulfurization discharge standard is up to 5mg/m3Hereinafter, 0.6 micron -1 micron thin dirt can be trapped.HCl, HF and heavy metal are fine
Dirt and the removal efficiency of other harmful substances can reach minimum discharge.
5th, the three V-arrangement whiz formula demisters set in two-stage horizontal flue, aerosol be in whiz circle round from
Heart disengaging movement, entrainment is few, adapts to high wind speed operation, the ability with fine processing mist, efficiency high.The sub- shape of whiz is
Semicircular arc, do not have dead angle, not block when rinsing.Gas-liquid sedimentation flue is provided in the first order and second level horizontal flue
Between, the droplet in flue gas is collided from each other using the cohesion that collides with each other of turning twice using downward self gravitation acceleration
Condense and be captured, due to not carried secretly when gas-liquid settles the setting demister on-line rinsing of flue.
6th, a booster jar can be formed in king-tower.First, heat smoke, which enters after tower to run into spray droplet, can form vapours production
The heat bulbs of pressure；Second, flue gas and spray droplet are top-down in main tower, due to the effect meeting of acceleration of gravity
Downward pressure is produced, both increased pressure sums in tower will make original air pressure increase in tower, the increased pressure pair of institute
It is helpful in overcoming the resistance in this desulphurization system.
Brief description of the drawings
Fig. 1 is the agent structure schematic diagram that the utility model minimum discharge desulfurization removes fine dirt device.
Fig. 2 is the sectional view in the utility model flue gas water conservancy diversion air distribution plate passage A-A directions.
Fig. 3 is the sectional view in the utility model triangle grid block piece layer B-B directions.
Fig. 4 is the sectional view that the utility model desulfurization removes fine dirt impact head C-C directions.
Fig. 5 is the sectional view in first of V-arrangement whiz formula demister D-D direction of the utility model.
Fig. 6 is the sectional view in first of sub- D-D direction of V-arrangement whiz formula demister whiz of the utility model.
Wherein：1st, gas approach, 2, flue gas water conservancy diversion air distribution plate passage, 3, flue gas prewet cooling spraying layer, 4, desulfurization is except micro-
Thin dirt spraying layer, 5, grid block piece flooding nozzle, 6, triangle grid block piece layer, 7, main tower, 8, desulfurization remove fine dirt impact head,
9th, liquid bath, 10, desulfurizing agent, 11, water level control overflow pipe, 12, main tower outlet flue, 13, first order horizontal flue, 14, demisting
Device flooding nozzle, 15, first of V-arrangement whiz formula demister, 15-A, the first demister blade, 15-B, the second demister blade,
15-C, the 3rd demister blade, 15-2, the tabs of demister first, 15-3, the tabs of demister second, 15-4, the folding of demister the 3rd
Piece, 15-5, flow deflector, 15-6, whiz piece, 16, second V-arrangement whiz formula demister, 17, gas-liquid sedimentation flue, 18, the second level
Horizontal flue, the 19, the 3rd V-arrangement whiz formula demister, 20, exhanst gas outlet.
Embodiment
Below by specific embodiment and with reference to accompanying drawing, the present invention will be further described, but not limited to this.
Embodiment 1
As shown in figure 1, a kind of minimum discharge desulfurization removes fine dirt device, including main tower (7) and it is arranged on main tower (7) bottom
The liquid bath (9) in portion, described main tower (7) bottom, which is located on liquid bath (9), is provided with main tower outlet flue (12), and main tower goes out
Mouth (12) is connected with first order horizontal flue (13), and described first order horizontal flue (13) is connected with gas-liquid sedimentation flue
(17), described gas-liquid sedimentation flue (17) is connected with second level horizontal flue (18)；
Gas approach (1) is provided with the top of the main tower (7), cigarette is disposed with from top to bottom in main tower (7)
Conductance spreads aerofoil passage (2), flue gas is prewetted cooling spraying layer (3), desulfurization are except fine dirt spraying layer (4), triangle grid block piece
Layer (6) and desulfurization remove fine dirt device impact head (8)；Described flue gas prewet cooling spraying layer (3) and desulfurization except fine dirt spray
Layer (4) is made up of the shower for being provided with nozzle respectively, and the direction of nozzle spray is upward, towards the direction of gas approach (1)；Institute
By two layers of set square, dislocation arrangement forms the triangle grid block piece layer (6) stated up and down, and described set square is two rectangular slab groups
Into cross section be triangle component, the direction of the corner angle of set square towards gas approach (1)；Described desulfurization removes fine dirt
By two layers of grid, dislocation arrangement is formed device impact head (8) up and down, and upper strata grid is made up of set square, and lower floor's grid is by triangle rectangle
Plate form, described triangle rectangular slab be set square downward vertical set two pieces of rectangular-plate-shapeds into cross section above be triangle
Shape, the component that lower section is rectangle, form Wen's rectangular channel；
Described triangle grid block piece layer (6) and desulfurization, which remove, is provided with grid gear above fine dirt device impact head (8)
Part flooding nozzle (5), the nozzle of grid block piece flooding nozzle (5) spray to the direction of liquid bath (9)；In described liquid bath (9) side wall
It is provided with water level control overflow pipe (11)；
First of V-arrangement whiz formula demister (15) and second are fixedly installed in described first order horizontal flue (13)
V-arrangement whiz formula demister (16), the 3rd V-arrangement whiz formula demister is fixedly installed in described second level horizontal flue (18)
(19), front and rear, second V-arrangement whiz formula demister (16) front and rear and the 3rd V of first of V-arrangement whiz formula demister (15)
The front and rear of shape whiz formula demister (19) is respectively arranged with mist eliminator flushing nozzle (14), described second level horizontal flue (18)
End is provided with exhanst gas outlet (20).
In the present embodiment, described flue gas water conservancy diversion air distribution plate passage (2) is made up of the air distribution plate for being connected to main tower (7),
The quantity of air distribution plate is 30.Air distribution plate is that 30 steel plates are welded on main tower inwall, is divided into 31 exhaust gases passes, flue gas from
Gas approach (1), which is entered in flue gas water conservancy diversion air distribution plate passage (2), makes smoke distribution uniformly downward.
Described flue gas prewet cooling spraying layer (3) be divided into two layers, every layer is made up of the shower for being provided with nozzle.Spray
Pipe is all fixed on the crossbeam in main tower (7), and the direction of spray is all upward, that is, sprays to the direction of gas approach (1), with
Flue gas downwardly direction be it is relative, the drop sprayed upwards reach a certain height and turn round downwards leaching fall it is equidirectional with flue gas and
OK.
Described desulfurization is divided into four layers except fine dirt spraying layer (4), and every layer is made up of the shower for being provided with nozzle.Every layer
Shower is all fixed on the crossbeam in main tower (7), and the direction of spray is all upward, that is, sprays to the side of gas approach (1)
To, be with flue gas downwardly direction it is relative, the drop sprayed upwards reach a certain height and turn round downwards leaching fall, it is same with flue gas
Xiang Erhang.
The triangle grid block piece layer (6) is divided into three groups, and every group is made up of two layers of triangle grid block piece, described trigonal lattice
Grid block piece is set square, and every group of triangle grid block piece layer (6) is separately positioned on desulfurization except below fine dirt spraying layer (4).Three
Angle grid block piece is fixed on the crossbeam in main tower (7), and spray droplet leaching falls to form moisture film on triangle grid block piece inclined-plane,
So that drop of the spray liquid by dispersed phase, becomes continuous phase on triangle grid block piece inclined-plane, is connect with the comprehensive zero distance of flue gas
Touch.
Embodiment 2
As described in Example 1, desulfurizing agent (10), desulfurizing agent are provided with the liquid bath (9) unlike described in the present embodiment
(10) liquid level and desulfurization leaves space between removing fine dirt impact head (8).Desulfurization removes lower floor's lattice of fine dirt device impact head (8)
Grid are made up of triangle rectangular slab, it is internally formd a plurality of Wen's rectangular channel, and gas-liquid enters desulfurization except fine dirt device rushes
Tap the head and condense in Wen's rectangular channel of (8), then carry out water-bath washing in the desulfurizing agent (10) in spirt liquid bath (9) again.
Embodiment 3
As described in Example 2, water level control is provided with unlike in main tower (7) bottom liquid bath (9) described in the present embodiment
Overflow pipe (11) processed, it is in order that desulfurization keeps one except the liquid level of fine dirt impact head (8) and the desulfurizing agent (10) in liquid bath (9)
Fixed distance.Triangle grid block piece layer (6) and desulfurization are rinsed except fine dirt device impact head (8) is respectively provided with grid block piece above
Nozzle (5), is rinsed when desulfurizing tower is out of service.
Embodiment 4
As described in Example 3, first of V-arrangement whiz formula demister (15) of the present embodiment, second V-arrangement whiz unlike
Formula demister (16) and the 3rd V-arrangement whiz formula demister (19) form by the V-shaped arrangement of whiz；
Described whiz is by the first demister blade (15-A), the second demister blade (15-B) that be arranged in parallel successively
With the 3rd demister blade (15-C) form, between the first demister blade (15-A) and the second demister blade (15-B) and
Exhaust gases passes, the first demister blade (15- are formed between second demister blade (15-B) and the 3rd demister blade (15-C)
A) and the 3rd demister blade (15-C) is provided with outside protuberance, and described protuberance is by the first tabs of demister (15-
2), the tabs of demister second (15-3) and the tabs (15-4) of demister the 3rd are sequentially connected with composition, the described folding of demister first
Piece (15-2) and the tabs of demister second (15-3) are straight plate, the folding of demister first in the first demister blade (15-A)
The angle towards outside is formed between piece (15-2) and the first demister blade (15-A), in the 3rd demister blade (15-C)
The angle towards outside, the folding of demister second are formed between the tabs of demister first (15-2) and the 3rd demister blade (15-C)
Piece (15-3) is parallel with the first demister blade (15-A) and the 3rd demister blade (15-C), the tabs (15-4) of demister the 3rd
For circular arc plate so that the tabs of demister second (15-3) and the first demister blade (15- in the first demister blade (15-A)
A by demister the 3rd tabs (15-4) arc transition between), the tabs of demister second in the 3rd demister blade (15-C)
Pass through demister the 3rd tabs (15-4) arc transition between (15-3) and the 3rd demister blade (15-C)；Positioned at protuberance
Flow deflector (15-5) and whiz piece (15-6), described flow deflector (15-5) and whiz piece (15-6) point are provided with exhaust gases passes
It is not fixedly installed with the second demister blade (15-B), described whiz piece (15-6) is semicircular arc plate and semicircular arc mouth
Towards flue gas inlet channel, described flow deflector (15-5) is tangentially fixedly installed with whiz piece (15-6).The shape of all whiz
Shape is identical.
First of V-arrangement whiz formula demister (15), second V-arrangement whiz formula demister (16) and the 3rd V-arrangement whiz formula
Whiz piece (15-6) diameter of whiz of demister (19) is sequentially reduced so that the ability of high speed fine processing flue fog drip
Strengthen successively.
Embodiment 5
As described in Example 4, the present embodiment first order horizontal flue (13) and second level horizontal flue (18) unlike
It is parallel, described gas-liquid sedimentation flue (17) and first order horizontal flue (13) and second level horizontal flue (18) is vertical sets
Put；First order horizontal flue (13) and second level horizontal flue (18) are horizontally disposed, and gas-liquid sedimentation flue (17) is arranged on
The lower section of first order horizontal flue (13)；Described gas-liquid sedimentation flue (17) bottom is provided with liquid holding groove.So gas-liquid settles
Flue (17) just have two 90 degree it is curved so that flue gas is run from the top down, by 90 degree it is curved when droplet formation collision so that coagulate
It is poly-, further settled by self gravitation acceleration, the drop not settled can be by the 3rd V-arrangement whiz formula after increasing due to condensation
Demister (19) further removes.
The course of work of the present utility model：
As shown in figure 1, boiler induced-draft fan is transported to more than 100 degree of heat smoke the top gas approach of main tower (7)
(1) enter in flue gas water conservancy diversion air distribution plate passage (2), whole flue gas field is uniformly distributed downwards, it is pre- with two layers upward of flue gas
Wet cooling spraying layer (3) is intersecting, becomes the SO of vapours removing mist3, spray droplet and flue gas are versus high motions,
Fine dirt is wet rear surface air film and broken through, and is collided with each other between fine dirt and condenses and be captured.Spray the liquid sprayed upwards
Drop reach a certain height and turns round leaching downwards, and is gone in the same direction with flue gas, spray droplet adds up and down twice with smoke contacts
The density of spray, improve flue gas and prewet the efficiency of cooling.Flue gas is prewetted formal after cooling removes fine dirt spraying layer into desulfurization
(4) in, a whole set of spraying zone is provided with four layers of spraying layer, and the drop for spraying ejection is also upward, and downward flow direction is with flue gas
Relative and row, the drop sprayed upwards reach a certain height and turns round leaching downwards, and goes, completes second in the same direction with flue gas
Desulfurization is except fine dirt and removes other harmful substance processes.Leaching falls on triangle grid block piece layer (6) inclined-plane again spray droplet downwards
Liquid film is formed, flue gas liquid mixture constantly washes away triangle grid block piece inclined-plane, constantly updates liquid film, SO in flue gas2、SO3, it is micro-
Thin dirt, heavy metal and other harmful substances contact with the comprehensive zero distance of liquid film on triangle grid block piece inclined-plane, complete the 3rd
Secondary desulfurization removes fine dirt and other harmful substance processes.Gas-liquid mixture enters the desulfurization of main tower (7) bottom setting except micro-
Condensed in Wen's rectangular channel of thin dirt impact head (8), then in spirt tower bottom liquid bath (9) interior desulfurizing agent (10), obtain water
Bath washing.Harmful substance 99.99% in flue gas is removed, and completes the 4th desulfurization except fine dirt and to deviate from other harmful
Substance process.Removed in triangle grid block piece layer (6) and desulfurization and the punching of grid block piece is all provided with above fine dirt impact head (8) component
Nozzle (5) is washed, is rinsed when the utility model is out of service.In order to which desulfurization removes fine dirt impact head (8) and desulfurizing agent
(10) liquid level keeps certain distance, is controlled with water level control overflow pipe (11), flue gas passes through four processing procedures in tower
Afterwards, entered by main tower outlet flue (12) in first order horizontal flue (13), flue gas passes through first of V-arrangement whiz formula demister
(15) demisting, the curved gas-liquid that is downwardly into is turn 90 degrees after second V-arrangement whiz formula demister (16) demisting and settles flue (17)
In, the collision cohesion when turning of the droplet carried secretly in flue gas, utilize the acceleration of gravity of itself to collide cohesion, drop when downward
All vertically fall in stack base liquid holding groove.90 degree of flue gas turning bends into interior by the 3rd V into second level horizontal flue (18)
Shape whiz formula demister, after high speed fine defogging, the droplet overwhelming majority in flue gas is removed, the fine acidic oxidation in flue gas
The aerosol of thing aerosol and other harmful substances, minimum discharge is fully achieved into air.The flue gas handled well passes through flue gas
Outlet (20) enters smokestack, is discharged into air.
Claims (10)
1. a kind of minimum discharge desulfurization removes fine dirt device, it is characterised in that the minimum discharge desulfurization includes king-tower except fine dirt device
Body (7) and the liquid bath (9) for being arranged on main tower (7) bottom, described main tower (7) bottom, which is located on liquid bath (9), to be provided with
Main tower outlet flue (12), main tower outlet flue (12) are connected with first order horizontal flue (13), the horizontal cigarette of the described first order
Road (13) is connected with gas-liquid sedimentation flue (17), and described gas-liquid sedimentation flue (17) is connected with second level horizontal flue (18)；
Gas approach (1) is provided with the top of the main tower (7), being disposed with flue gas from top to bottom in main tower (7) leads
Spread aerofoil passage (2), flue gas prewets cooling spraying layer (3), desulfurization except fine dirt spraying layer (4), triangle grid block piece layer (6)
Fine dirt device impact head (8) is removed with desulfurization；Described flue gas prewet cooling spraying layer (3) and desulfurization remove fine dirt spraying layer (4)
It is made up of respectively the shower for being provided with nozzle, the direction of nozzle spray is upward, towards the direction of gas approach (1)；Described
By two layers of set square, dislocation arrangement forms triangle grid block piece layer (6) up and down, and described set square is two pieces of rectangular slabs compositions
Cross section is the component of triangle, the direction of the corner angle of set square towards gas approach (1)；Described desulfurization is rushed except fine dirt device
Tapping the head, (8) dislocation arrangement is formed up and down by two layers of grid, and upper strata grid is made up of set square, and lower floor's grid is by triangle rectangular slab group
Into, described triangle rectangular slab be set square downward vertical set two pieces of rectangular-plate-shapeds into cross section above for triangle, under
Side is the component of rectangle；
Described triangle grid block piece layer (6) and desulfurization, which remove, is provided with the punching of grid block piece above fine dirt device impact head (8)
Nozzle (5) is washed, the nozzle of grid block piece flooding nozzle (5) sprays to the direction of liquid bath (9)；Set in described liquid bath (9) side wall
There is water level control overflow pipe (11)；
First of V-arrangement whiz formula demister (15) and second V-arrangement are fixedly installed in described first order horizontal flue (13)
Whiz formula demister (16), the 3rd V-arrangement whiz formula demister is fixedly installed in described second level horizontal flue (18)
(19), front and rear, second V-arrangement whiz formula demister (16) front and rear and the 3rd V of first of V-arrangement whiz formula demister (15)
The front and rear of shape whiz formula demister (19) is respectively arranged with mist eliminator flushing nozzle (14), described second level horizontal flue (18)
End is provided with exhanst gas outlet (20).
2. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that described flue gas flow-guiding cloth wind
Board channel (2) is made up of the air distribution plate for being connected to main tower (7), and the quantity of air distribution plate is 7-30 roads.
3. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that described flue gas is prewetted cooling
Spraying layer (3) is divided into two layers, and every layer is made up of the shower for being provided with nozzle.
4. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that described desulfurization removes fine dirt
Spraying layer (4) is divided into four layers, and every layer is made up of the shower for being provided with nozzle.
5. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that the triangle grid block piece layer
(6) three groups are divided into, every group is made up of two layers of triangle grid block piece, and described triangle grid block piece is set square, every group of trigonal lattice
Grid block piece layer (6) is separately positioned on desulfurization except below fine dirt spraying layer (4).
6. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that is set in described liquid bath (9)
Desulfurizing agent (10) is equipped with, the liquid level of desulfurizing agent (10) and desulfurization leave space between removing fine dirt impact head (8).
7. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that first of V-arrangement whiz formula is removed
Day with fog (15), second V-arrangement whiz formula demister (16) and the 3rd V-arrangement whiz formula demister (19) are V-shaped by whiz
Arrangement composition；
Described whiz is by the first demister blade (15-A), the second demister blade (15-B) and that be arranged in parallel successively
Three demister blades (15-C) form, between the first demister blade (15-A) and the second demister blade (15-B) and second
Form exhaust gases passes between demister blade (15-B) and the 3rd demister blade (15-C), the first demister blade (15-A) and
3rd demister blade (15-C) is provided with outside protuberance, described protuberance by the tabs of demister first (15-2),
The tabs of demister second (15-3) and the tabs (15-4) of demister the 3rd are sequentially connected with composition, the described tabs of demister first
(15-2) and the tabs of demister second (15-3) are straight plate, the tabs of demister first in the first demister blade (15-A)
The angle towards outside, removing in the 3rd demister blade (15-C) are formed between (15-2) and the first demister blade (15-A)
The angle towards outside, the tabs of demister second are formed between the tabs of day with fog first (15-2) and the 3rd demister blade (15-C)
(15-3) is parallel with the first demister blade (15-A) and the 3rd demister blade (15-C), and the tabs (15-4) of demister the 3rd is
Circular arc plate so that the tabs of demister second (15-3) and the first demister blade (15-A) in the first demister blade (15-A)
Between by demister the 3rd tabs (15-4) arc transition, the second tabs of demister (15- in the 3rd demister blade (15-C)
3) demister the 3rd tabs (15-4) arc transition is passed through between the 3rd demister blade (15-C)；Positioned at the flue gas of protuberance
Be provided with flow deflector (15-5) and whiz piece (15-6) in passage, described flow deflector (15-5) and whiz piece (15-6) respectively with
Second demister blade (15-B) is fixedly installed, and described whiz piece (15-6) is semicircular arc plate and semicircular arc mouth direction
Flue gas inlet channel, described flow deflector (15-5) are tangentially fixedly installed with whiz piece (15-6).
8. minimum discharge desulfurization according to claim 7 removes fine dirt device, it is characterised in that first of V-arrangement whiz formula is removed
The whiz piece of whiz of day with fog (15), second V-arrangement whiz formula demister (16) and the 3rd V-arrangement whiz formula demister (19)
(15-6) diameter is sequentially reduced.
9. minimum discharge desulfurization according to claim 1 removes fine dirt device, it is characterised in that first order horizontal flue (13)
It is parallel with second level horizontal flue (18), described gas-liquid sedimentation flue (17) and first order horizontal flue (13) and the second level
Horizontal flue (18) is vertically arranged.
10. minimum discharge desulfurization according to claim 9 removes fine dirt device, it is characterised in that described gas-liquid sedimentation cigarette
Road (17) bottom is provided with liquid holding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368544.2U CN206631387U (en) | 2017-04-10 | 2017-04-10 | Minimum discharge desulfurization removes fine dirt device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368544.2U CN206631387U (en) | 2017-04-10 | 2017-04-10 | Minimum discharge desulfurization removes fine dirt device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115315303A (en) * | 2020-02-26 | 2022-11-08 | 环球油品有限责任公司 | Process and apparatus for quenching a reactor effluent stream |
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2017
- 2017-04-10 CN CN201720368544.2U patent/CN206631387U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115315303A (en) * | 2020-02-26 | 2022-11-08 | 环球油品有限责任公司 | Process and apparatus for quenching a reactor effluent stream |
| CN115315303B (en) * | 2020-02-26 | 2024-04-02 | 环球油品有限责任公司 | Process and apparatus for quenching a reactor effluent stream |
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