CN106512563B - A kind of reunion trapping of sintering flue gas subparticle and discharge-reducing method - Google Patents
A kind of reunion trapping of sintering flue gas subparticle and discharge-reducing method Download PDFInfo
- Publication number
- CN106512563B CN106512563B CN201611078061.5A CN201611078061A CN106512563B CN 106512563 B CN106512563 B CN 106512563B CN 201611078061 A CN201611078061 A CN 201611078061A CN 106512563 B CN106512563 B CN 106512563B
- Authority
- CN
- China
- Prior art keywords
- flue gas
- reunion
- particulate matter
- bend pipe
- turning back
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
Abstract
The invention discloses a kind of reunion trapping of sintering flue gas subparticle and discharge-reducing methods, belong to agglomeration for iron mine gas pollution control field.Flue gas of the present invention enters reunion capturing device, sprays into agglomerator into flue gas in reunion capturing device, and fine particle is sufficiently mixed with agglomerator, and agglomerator droplet, which is sufficiently mixed and is reunited with flue gas, grows up；Fine particle reunion enters in the bend pipe of turning back of reunion capturing device after growing up, steering position flue gas change gas flow rapidly in bend pipe lower part of turning back, so that the particulate matter in flue gas is separated with flue gas, bend pipe of turning back is inclined to be provided with reservoir block, and particulate matter is trapped and stored by reservoir block.Fine particle in flue gas of the invention, which first carries out reuniting, grows up, then is inclined by the reservoir block trapping of setting, improves the arresting efficiency of flue gas particles.
Description
Technical field
The present invention relates to agglomeration for iron mine gas pollution control fields, more specifically to a kind of sintering flue gas fine
The reunion trapping of grain and discharge-reducing method.
Background technique
Agglomeration for iron mine process is essential link in Production Processes In Steel Industry, while being that steel and iron industry is maximum again
PM10And PM2.5Emission source accounts for 40% of its total release or so.Dedusting method traditional at present is difficult to effectively control PM2.5Row
It puts, fine particle groups can be made to be polymerized to larger grain by physics or chemical action so pretreatment stage is arranged before deduster
The particle of diameter becomes a kind of novel dust removal method so as to be removed by traditional deduster.
Sintering plant mainly uses deduster to carry out the particulate matter in purifying sintering flue gas at present, and deduster is to thick in flue gas
Grain object removal effect is preferable, but the fine particle (PM for partial size less than 10 μm10And PM2.5), due to its particle diameter is small,
Specific resistance is high, charge capacity is poor.General dust removal method is difficult to for fine particle being effectively removed, and urgent need develops a kind of burning
The processing equipment for tying flue gas fine particulate matter, to be effectively treated to the fine particle in sintering flue gas.
Through retrieving, Chinese Patent Application No.: 201620055887.9, authorized announcement date is on June 29th, 2016, invention wound
A kind of entitled flue gas dust collecting system is made, this application discloses a kind of flue gas dust collecting system, which includes that gravity is heavy
Room, inertia dust-removing device, cyclone dust collector and Wet type electric dust-removing device drop；Wherein inertia dust-removing device is set to gravitational settling
Smoke outlet that is indoor and being located at gravity settling chamber, the smoke outlet of gravity settling chamber and the flue gas of cyclone dust collector enter
Mouth end is connected；Wet type electric dust-removing device is set to the smoke outlet of cyclone dust collector.This application is relative to existing
Wet type electric dust-removing device improves efficiency of dust collection to a certain extent, but disadvantage is that using cleaner type compared with
More, crushing is big, and energy consumption is high, and equipment investment cost is higher.
In addition, Chinese Patent Application No.: 201610288719.9, the applying date is on April 28th, 2016, invention and created name
For a kind of agglomeration for iron mine flue gas PM10And PM2.5Discharge-reducing method, this application discloses Ore Sintering Process fine particles
Emission-reducing system in Ore Sintering Process, sprays into reunion liquid, the subparticle in sintering flue gas in the exhaust gases passes of sintering flue gas
Object is reunited under the action of reunion liquid grows up, and the fine particle reunited and grown up, the reunion are removed using dust-extraction unit
Agent includes aluminium polychloride, sodium carboxymethylcellulose, polyacrylamide and solid additive.Present application to be adsorbed with fine
The reunion liquid mist drop of particulate matter is nucleated under low voltage situations, collides, growing up, the bulky grain aggregate of formation, and is filled using dedusting
Set the fine particle for removing and reuniting and growing up.This application proposes that fine particle reunion subtracts in a kind of novel iron ore sintering flue gas
The method of row, the agglomerating effect for improving fine particle in agglomeration for iron mine flue gas realize the emission reduction of fine particle, but the Shen
The trapping that particulate matter after reuniting please be such as improved in case also needs to cooperate more efficient capturing device.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art, Ore Sintering Process fine particle is difficult to effectively trap and subtract
The problem of row, reunion trapping and discharge-reducing method, the one such sintering flue gas for providing a kind of sintering flue gas subparticle are fine
The reunion capture method of particle, improves the arresting efficiency of flue gas particles；One such sintering flue gas fine particle
Discharge-reducing method improves the specific aim of fine particle emission reduction in flue gas, reduces emission reduction by carrying out segment processing to flue gas
Cost.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of reunion capture method of flue gas fine particle of the invention, specific steps are as follows:
Step 1: fine particle is reunited
Flue gas enters reunion capturing device, sprays into agglomerator into flue gas in reunion capturing device, fine particle with
Agglomerator is sufficiently mixed, and agglomerator droplet, which is sufficiently mixed and is reunited with flue gas, grows up；
Step 2: trap particulate matter
Fine particle reunion enters in the bend pipe of turning back of reunion capturing device after growing up, in the steering of bend pipe lower part of turning back
The change gas flow of position flue gas rapidly, so that the particulate matter in flue gas is separated with flue gas, bend pipe of turning back is inclined to be provided with
Reservoir block, particulate matter are trapped and are stored by reservoir block.
Preferably, the reunion capturing device includes
Particle agglomeration unit is provided with agglomerator spray head in the particle agglomeration unit；
It turns back capture unit, which includes reservoir block, intake elbow and outlet bend pipe, the air inlet
Bend pipe is connected with the bottom of outlet bend pipe and constitutes bend pipe of turning back, and the reservoir block is inclined to be set to outlet bend pipe
On, particulate matter is settled in bend pipe of turning back and is stored in reservoir block；
The particle agglomeration unit is set to the top for capture unit of turning back, and the bottom of particle agglomeration unit is caught with turning back
The intake elbow for collecting unit is connected.
Preferably, the particle agglomeration unit includes agglomerator spray head, turbulence columns and particle agglomeration room, the reunion
Agent spray head and turbulence columns are set to the inside of particle agglomeration room, and agglomerator spray head is located at the top of turbulence columns.
It preferably, further include electrostatic precipitation unit, which includes corona electrode, collection electrode and power supply
Part, the corona electrode are set in particle agglomeration unit, and collection electrode is set on the outlet bend pipe for capture unit of turning back,
The corona electrode, collection electrode are connected with the negative and positive electrode of power supply (303) respectively.
Preferably, Step 1: the specific steps that fine particle is reunited are as follows:
A, flue gas enters particle agglomeration room, agglomerator droplet is sprayed into flue gas at the top of particle agglomeration room, and reunite
On the contrary, flue gas is under the effect of turbulence columns flow-disturbing, fine particle occurs not for the injection direction of agent droplet and the flow direction of flue gas
Regular direction movement, agglomerator droplet, which is sufficiently mixed and reunites with the particulate matter in flue gas, grows up；
B, after particulate matter reunion is grown up, corona electrode carries out corona discharge to particulate matter, makes to take charge on particulate matter.
Preferably, Step 2: the specific steps of trap particulate matter are as follows:
A, the particulate matter in flue gas, which is reunited, grows up, enters capture unit of turning back after corona discharge, and particulate matter is with flue gas edge
Move in bend pipe of turning back, particulate matter settles under the collective effect of gravity and Particle Inertia power, is captured in bend pipe lower part of turning back
Reservoir block in；
B, power supply part is collection electrode power supply, so that charge different with particulate matter on collection electrode band, does not settle
Particle is trapped by collection electrode, and reservoir block is stored in after shaking.
Preferably, the top of the intake elbow is connected by shaking bellows with the bottom of particle agglomeration unit, out
The top of gas bend pipe is connected by shaking bellows with flue, and capture unit of turning back can concussion up and down in the vertical direction.
Preferably, the corona electrode is set to the lower part of turbulence columns, and the collection electrode is set to reservoir block
Above inlet.
A kind of discharge-reducing method of sintering flue gas fine particle of the invention, the specific steps are by pallet middle and back
Bellows in flue gas introduce reunion capturing device, reunion capturing device by flue gas subparticle reunite, trapping remove, only
Flue gas after change introduces Main Gas Flue of Sintering Machine by pipeline again；Wherein, reunion trapping side of the reunion capturing device to fine particle
Method is above-mentioned reunion capture method.
Preferably, the bellows of middle and back are in the middle part of pallet to the corresponding bellows in lower section at pallet terminal position.
3. beneficial effect
Using technical solution provided by the invention, compared with existing well-known technique, there is following remarkable result:
(1) the reunion capture method of a kind of sintering flue gas subparticle of the invention, the fine particle in flue gas are advanced
Row, which is reunited, grows up, then is inclined by the reservoir block trapping of setting, improves the arresting efficiency of flue gas particles, reservoir block inclination
Be set on outlet bend pipe, the inclined bottom for being set to outlet bend pipe of reservoir block, in gravity and particle motion process
Inertia force collective effect under, particle is deposited in the bottom for bend pipe of turning back, and is mainly gathered in the bottom of outlet bend pipe, by
It is 10-30 ° in the upper end opening of reservoir block and the angle of horizontal plane, particle, can in the bottom infall process of outlet bend pipe
Directly by the upper end opening first motion of reservoir block into reservoir block, to promote particulate matter directly by reservoir block
It is trapped, improves the removal efficiency of flue gas particles；
(2) the reunion capture method of a kind of sintering flue gas subparticle of the invention, the flue gas at the top of intake elbow flow into
End by shake bellows be connected with the flue on top, the flue gas outflow end at the top of outlet bend pipe by concussion bellows and
The flue on top is connected, that is, bend pipe of turning back can make the vibration of vertical direction relative to flue, during vibration
Fine particle in flue gas disturbs in bend pipe of turning back with flue gas simultaneously, to promote particulate matter in bend pipe of turning back
It collides, and fine particle reunion is promoted to grow up, improve the removal efficiency of flue gas particles；
(3) the reunion capture method of a kind of sintering flue gas subparticle of the invention, agglomerator spray head and turbulence columns setting
In the inside of particle agglomeration room, agglomerator spray head is located at the top of turbulence columns, and the flow direction of injection direction and flue gas is on the contrary, cigarette
The agglomerator droplet touch opportunity that fine particle and agglomerator spray head head-on spray in gas increases, and promotes the quick of particulate matter
Reunite；
(4) the reunion capture method of a kind of sintering flue gas subparticle of the invention, corona electrode and power supply part are born
Extremely it is connected, collection electrode is connected with the anode of power supply part, and the particulate matter in flue gas is in the lower part of particle agglomeration unit by load
Upper negative electrical charge then enters electrostatic precipitation unit, and above reservoir block inlet, the particulate matter for carrying negative electrical charge is gathered dust
Electrode is trapped, and bend pipe of turning back can make the vibration of vertical direction relative to particle agglomeration unit, is shaken and is generated mutually
Collision, increases the contact probability of particulate matter and collection electrode, to promote particulate matter above reservoir block inlet
It is trapped, and is deposited in reservoir block by collection electrode；
(5) discharge-reducing method of a kind of sintering flue gas fine particle of the invention, will be in the bellows of pallet middle and back
Flue gas introduce reunion capturing device, the bellows of middle and back are corresponding to lower section at pallet terminal position in the middle part of pallet
Bellows, reunion capturing device reunites the subparticle in flue gas, trapping removes, and purified flue gas introduces by pipeline again
Main Gas Flue of Sintering Machine improves the specific aim of fine particle emission reduction in flue gas, to drop by carrying out segment processing to flue gas
The low treating capacity of flue gas, reduces the emission reduction cost of pollutant.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of agglomeration for iron mine flue gas fine particulate matter reunion capturing device of the invention；
Fig. 2 is the structural schematic diagram of reservoir block of the invention；
Fig. 3 is a kind of flow chart of the reunion capture method of sintering flue gas subparticle of the invention.
Label declaration in schematic diagram:
100, particle agglomeration unit；101, agglomerator spray head；102, turbulence columns；103, Contraction Ducts；104, particle agglomeration
Room；105, expansion line；
200, it turns back capture unit；201, bellows is shaken；202, vibrator；210, reservoir block；211, dust flow-disturbing
Plate；212, water mist spraying head；213, dirt valve is unloaded；214, dust bellows；220, intake elbow；221, flue gas flows into end；230, go out
Gas bend pipe；231, flue gas outflow end；
300, electrostatic precipitation unit；301, corona electrode；302, collection electrode；303, power supply part.
Specific embodiment
Hereafter to the detailed description of exemplary embodiment of the present invention with reference to attached drawing, which forms one of description
Point, it has been shown as example enforceable exemplary embodiment of the invention in the figure.Although these exemplary embodiment quilts
Sufficiently describe in detail so that those skilled in the art can implement the present invention, it is to be understood that can realize other embodiments and
Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to the embodiment of the present invention
More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair
The description of the features of the present invention and feature to propose to execute best mode of the invention, and is sufficient to make those skilled in the art
It can implement the present invention.Therefore, the scope of the invention is only defined by the appended claims.
Hereafter detailed description of the present invention and example embodiment are more fully understood in combination with attached drawing, wherein of the invention
Element and feature are identified by appended drawing reference.
Embodiment 1
As shown in figure 3, a kind of reunion capture method of flue gas fine particle of the present embodiment, specific steps are as follows:
Step 1: fine particle is reunited
Flue gas enters reunion capturing device, sprays into agglomerator, subparticle into flue gas in reunion capturing device first
Object is sufficiently mixed with agglomerator, and agglomerator droplet, which is sufficiently mixed and is reunited with flue gas, grows up；Detailed description are as follows:
A, flue gas enters particle agglomeration room 104, and agglomerator droplet is sprayed into flue gas at the top of particle agglomeration room 104,
And the injection direction of agglomerator droplet and the flow direction of flue gas on the contrary, flue gas under the effect of 102 flow-disturbing of turbulence columns, subparticle
Irregular direction movement occurs for object, and agglomerator droplet, which is sufficiently mixed and reunites with the particulate matter in flue gas, grows up；
B, after particulate matter reunion is grown up, corona electrode 301 carries out corona discharge to particulate matter, powers on band on particulate matter
Lotus, and corona electrode 301 is connected with the cathode of power supply part 303, to make negative electrical charge on particulate matter band.
Step 2: trap particulate matter
Fine particle reunion enters in the bend pipe of turning back of reunion capturing device after growing up, in the steering of bend pipe lower part of turning back
The change gas flow of position flue gas rapidly, so that the particulate matter in flue gas is separated with flue gas, bend pipe of turning back is inclined to be provided with
Reservoir block 210, particulate matter are trapped and are stored by reservoir block 210.Detailed description are as follows:
A, the particulate matter in flue gas, which is reunited, grows up, enters capture unit 200 of turning back after corona discharge, and particulate matter is with flue gas
It is moved in bend pipe of turning back, under particulate matter settles under the collective effect of gravity and Particle Inertia power, is captured in bend pipe of turning back
In the reservoir block 210 in portion；
B, power supply part 303 is the power supply of collection electrode 302, so that collection electrode 302 takes the charge different with particulate matter,
The particle not settled is trapped by collection electrode 302, and reservoir block 210 is stored in after shaking；Wherein collection electrode 302 and power supply
The anode of component 303 is connected, and is adsorbed by the particulate matter of negative electricity on 301 load of corona electrode by collection electrode 302, in vibration
The particulate matter for being adsorbed on collection electrode 302 in the process is fallen into reservoir block 210, and is trapped by reservoir block 210.
In conjunction with Fig. 1, the reunion capturing device of the present embodiment includes particle agglomeration unit 100 and turns back capture unit 200,
Agglomerator spray head 101 is provided in middle particle agglomeration unit 100；Capture unit of turning back 200 is above-mentioned capture unit of turning back
200；Particle agglomeration unit 100 is set to the top for capture unit 200 of turning back, and the bottom of particle agglomeration unit 100 is caught with turning back
The intake elbow 220 for collecting unit 200 is connected, and particulate matter is grown up in the reunion of particle agglomeration unit 100, and by capture unit of turning back
200 trappings, improve the arresting efficiency of particulate matter in flue gas.
Particle agglomeration unit 100 is set to the top for capture unit 200 of turning back, the bottom of particle agglomeration unit 100 and folding
Turn capture unit 200 intake elbow 220 be connected, particle agglomeration unit 100 include agglomerator spray head 101, turbulence columns 102 and
Grain reunion room 104, the agglomerator spray head 101 and turbulence columns 102 are set to the inside of particle agglomeration room 104, agglomerator spray
First 101 are located at the top of turbulence columns 102, and the flow direction of injection direction and flue gas in flue gas on the contrary, fine particle and reunite
The agglomerator droplet touch opportunity that agent spray head 101 head-on sprays increases, to improve agglomerating effect.
It is worth noting that the diameter of particle agglomeration room 104 is greater than the diameter of flue, above particle agglomeration room 104
Pipeline is provided with an expansion line 105, and flue is connect by expansion line 105 with particle agglomeration room 104, and flue gas is extending
Preliminary turbulent flow is generated at pipeline 105, while reducing flue gas rate.Flue gas enters particle agglomeration room 104 by the flue on top
Afterwards, flue gas flow rate slows down so that fine particle contacted with agglomerator droplet it is more abundant, be conducive to particulate matter in flue gas with
Agglomerator mixing；The cross-sectional shape of turbulence columns 102 is isosceles triangle, and triangle base is perpendicular to flow of flue gas direction, top
Angle pointing direction is opposite with flow of flue gas direction, and flue gas generates turbulent flow when passing through turbulence columns 102, is collided by rotation with mutual,
It is come into full contact between fine particle and agglomerator droplet and between other particles, enhances agglomerating effect, promote fine
Particulate matter reunion is grown up, to increase particle size, is trapped conducive to by next capture unit 200 of turning back.
The bottom of particle agglomeration room 104 is provided with Contraction Ducts 103, and the cross-sectional area of the Contraction Ducts 103 is along vertical
Downwardly direction is gradually reduced, and particle agglomeration room 104 is connected by Contraction Ducts 103 with intake elbow 220, increases gas velocity
Rate generates biggish inertia force, is conducive to particulate matter so that flue gas, which enters in capture unit 200 of turning back, higher initial velocity
Turning back, capture unit 200 is settled.
The flue gas at 220 top of intake elbow flows into end 221 and passes through 103 phase of Contraction Ducts of concussion bellows 201 and top
Even, the flue gas outflow end 231 at 230 top of outlet bend pipe is connected by shaking bellows 201 with the flue on top, that is, is turned back
Bend pipe can make the vibration of vertical direction relative to particle agglomeration unit 100.
The present embodiment turn back capture unit 200 include reservoir block 210, intake elbow 220 and outlet bend pipe 230, it is described
Intake elbow 220 be connected with the bottom of outlet bend pipe 230 and constitute bend pipe of turning back, the reservoir block 210 is inclined
It is set on outlet bend pipe 230, the inclined bottom for being set to outlet bend pipe 230 of reservoir block 210, as shown in Figure 1, reservoir portion
Part 210 is set to bend pipe bottom side to the right of turning back, and the reservoir block 210 is set as spheroidal, so that fine particle one
Denier, which enters, to be just difficult to be flown out by reservoir block 210 after reservoir block 210, it is therefore prevented that the particle in reservoir block 210 occurs secondary
Fugitive dust.
Particulate matter is settled in bend pipe of turning back and is stored in reservoir block 210, and reservoir block 210 and vertical direction
Inclination angle is 10-30 °, i.e. the inclination angle of the geometric center lines of reservoir block 210 and vertical direction is δ, δ=10-30 °, that is, is stored up
Integrate the upper end opening of component 210 and the angle of horizontal plane as 10-30 °, preferably 20 ° of the present embodiment.When flue gas and particulate matter are being rolled over
When bending pipe moves, for particulate matter under the collective effect of gravity and inertia force, the particulate matter in flue gas can be deposited in bend pipe of turning back,
And it is mainly gathered in the bottom of outlet bend pipe 230, since the upper end opening of reservoir block 210 and the angle of horizontal plane are 10-
30 °, particle, can be directly by the upper end opening first motion of reservoir block 210 in the bottom infall process of outlet bend pipe 230
Into reservoir block 210.
It is worth further illustrating, the smallest position of bend pipe radius of curvature of turning back is located at the bottommost for bend pipe of turning back, and
Reservoir block 210 of the invention is not set to the smallest position of bend pipe radius of curvature of turning back, but inclined is set to outlet
On bend pipe 230, which is not the smallest position of radius of curvature, and reservoir block 210 is obliquely installed, and has broken the formula of turning back and has gathered dust
Device capturing device is arranged at bend pipe curvature minimum of turning back or the inertial thinking of vertical lowest point, has instead to particulate matter
Preferably trapping and trapping effect.Its reason may be, on the basis of the original initial velocity of the particle in flue gas, in gravity and particle
Under the collective effect of inertia force in motion process, it is easier to be gathered in close to the bottom of outlet bend pipe 230, the setting is so that particle
Object is easier to settle and be stored in reservoir block 210 in bend pipe of turning back.
Above-mentioned 210 inlet of reservoir block is additionally provided with water mist spraying head 212, and particulate matter is storing up after water mist is wet
Secondary agglomeration is carried out in collection component 210, grows up so that fine particle reunite, increase weight, avoiding being deposited in reservoir portion
The particulate matter of 210 bottom of part is flown into again in outlet bend pipe 230.Dirt valve 213 is unloaded moreover, being provided in 210 bottom of reservoir block,
After having preserved a part of particle object in reservoir block 210, it can open and unload dirt valve 213, will accumulate in of reservoir block 210
Grain object discharge.
Above-mentioned intake elbow 220 and outlet bend pipe 230 is connected by shaking bellows 201 with flue, i.e. air inlet
The flue gas at 220 top of bend pipe flows into end 221 and is connected by shaking bellows 201 with the flue on top, and outlet bend pipe 230 pushes up
The flue gas outflow end 231 in portion is connected by shaking bellows 201 with the flue on top, that is, bend pipe of turning back can be relative to flue gas
Pipeline makees the vibration of vertical direction, and fine particle during vibration in flue gas is sent out in bend pipe of turning back with flue gas simultaneously
Raw disturbance, collides in bend pipe of turning back to promote particulate matter, and promotes fine particle that reunion occurs and grow up, this
Bending pipe is folded outward during vibration while increasing the complexity that particle moves in bend pipe of turning back, promotes particulate matter more
Easily enter among reservoir block 210.Vibrator 202 is provided in capture unit of turning back 200, vibrator 202 can promote folding
Bending pipe shakes.
Embodiment 2
The basic content of the present embodiment with embodiment 1, the difference is that: further include electrostatic precipitation unit 300, electrostatic removes
Dirt unit 300 includes corona electrode 301, collection electrode 302 and power supply part 303, and the corona electrode 301 is set to particle
The lower part of agglomeration unit 100, speed reduces after fine particle is reunited by 102 flow-disturbing of turbulence columns in sintering flue gas, therefore passes through
Corona electrode 301 is crossed to take more time, it is charged more abundant, and also subparticle on 104 top of particle agglomeration room, grow by reunion
Greatly, enable the particle reunited and grown up preferably charged by corona electrode 301；Collection electrode 302 is set to reservoir block 210 and enters
Top at mouthful, the particulate matter that collection electrode 302 traps are fallen into reservoir block 210.Corona electrode 301 in the present embodiment gathers dust
Electrode 302 is connected with the negative and positive electrode of power supply part 303 respectively, i.e., corona electrode 301 is connected with the cathode of power supply part 303,
Collection electrode 302 is connected with the anode of power supply part 303.
In the case that corona electrode 301 discharges, the particulate matter in flue gas is in the lower part of particle agglomeration unit 100 by load
Negative electrical charge then enters electrostatic precipitation unit 300 and carries the particulate matter quilt of negative electrical charge above 210 inlet of reservoir block
Collection electrode 302 is trapped, and bend pipe of turning back can make the vibration of vertical direction relative to particle agglomeration unit 100, vibration and
Mutual collision is generated, the contact probability of particulate matter Yu collection electrode 302 is increased.To promote particulate matter in reservoir block
It is trapped above 210 inlet by collection electrode 302, and the particulate matter of collection electrode 302 is deposited in storage during vibration
Collect in component 210.
Embodiment 3
The basic content of the present embodiment with embodiment 1, the difference is that: the present embodiment is turned back in capture unit 200
It is provided with vibrator 202, capture unit of entirely turning back 200 can all generate vibration, and particulate matter is received above arrival reservoir block 210
Before dirt electrode 302, shake and generate mutual collision, be easier to be trapped by collection electrode 302, reach collection electrode 302 after because
Increase particulate matter and 302 contact probability of collection electrode for vibration, the particulate matter vibration pop-up collection electrode 302 after neutralization, and fall
Enter in reservoir block 210, traps more particulate matters.Intake elbow 220 and outlet bend pipe 230 pass through concussion bellows
201 are connected with flue, and during vibration, the particle agglomeration unit 100 on top can't be sent out capture unit of turning back 200
Raw vibration, reduction, which is turned back during capture unit 200 traps, influences 100 aggregation procedure of particle agglomeration unit.
Embodiment 4
As shown in Fig. 2, the basic content of the present embodiment is with embodiment 1, and the difference is that: reservoir block 210 passes through collection
Dirt bellows 214 is connected with bend pipe of turning back, and the bend pipe vibration that avoids turning back causes 210 fugitive dust of reservoir block；Enter in reservoir block 210
Dust spoiler 211 is additionally provided at mouthful, effect is to reduce particulate matter to enter the speed after reservoir block 210, cooperates water mist
Spray head 212 makes particulate matter by water mist secondary agglomeration better effect, 210 endoparticle object of reservoir block is avoided to raise out.
Embodiment 5
A kind of discharge-reducing method of sintering flue gas fine particle of the present embodiment, the specific steps are,
Flue gas in the middle part of pallet front end to pallet in corresponding bellows is introduced directly into rough dedusting device, is slightly removed
Flue gas after dirt is discharged by large flue again；Flue gas in the bellows of pallet middle and back is introduced into rough dedusting device, is carried out thick
Dedusting, and the larger particles in flue gas are removed；Wherein the bellows of middle and back are in the middle part of pallet to pallet end
The corresponding bellows in lower section at position.Wherein the rough dedusting device removes for bag filter, electrostatic precipitator etc. are existing
Dirt equipment.
The flue gas in the bellows of pallet middle and back is introduced into reunion capturing device again, reunion capturing device is above-mentioned
Agglomeration device；Flue gas enters reunion capturing device, sprays into agglomerator into flue gas in reunion capturing device, fine particle with
Agglomerator is sufficiently mixed, and agglomerator droplet, which is sufficiently mixed and is reunited with flue gas, grows up, reunion capturing device will be micro- in flue gas
Fine grained is reunited, trapping removes, and purified flue gas introduces Main Gas Flue of Sintering Machine by pipeline again；Wherein reunion capturing device is to micro-
The reunion capture method of fine particle is above-mentioned reunion capture method.First bulky grain is removed, reduces reunion capturing device
To the treating capacity of particulate matter, the load degree of reunion capturing device is reduced, by carrying out segment processing to flue gas, improves cigarette
The specific aim of fine particle emission reduction in gas reduces the emission reduction cost of pollutant to reduce the treating capacity of flue gas.
The present invention is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can not take off
It is carry out various modifications in the case where from the scope of the present invention being defined by the following claims and modification.Detailed description and drawings
Should be to be considered only as it is illustrative and not restrictive, if there is any such modifications and variations, then they all will
It falls into the scope of the present invention described herein.In addition, Development Status and meaning that background technique is intended in order to illustrate this technology,
It is not intended to limit the present invention or the application and application field of the invention.
More specifically, although exemplary embodiment of the present invention has been described herein, the invention is not limited to
These embodiments, but including those skilled in the art according to front detailed description it can be appreciated that it is modified, omit,
Any and whole embodiments of (such as between each embodiment) combination, adaptive change and/or replacement.In claim
It limits the language according to used in claim and is widely explained, and be not limited in foregoing detailed description or in reality
The example described during this application is applied, these examples should be considered as nonexcludability.For example, in the present invention, term is " preferably
Ground " be not it is exclusive, here it means that " preferably, but be not restricted to that ".It is in office where method or process claims
In any step for enumerating can execute in any order and be not limited to the sequence proposed in claim.Therefore, of the invention
Range should only be determined by appended claims and its legal equivalents, rather than by descriptions and examples given above Lai
It determines.
Claims (9)
1. a kind of reunion capture method of flue gas fine particle, it is characterised in that: specific steps are as follows:
Step 1: fine particle is reunited
Flue gas enters reunion capturing device, sprays into agglomerator, fine particle and reunion into flue gas in reunion capturing device
Agent is sufficiently mixed, and agglomerator droplet, which is sufficiently mixed and is reunited with flue gas, grows up；
Step 2: trap particulate matter
Fine particle reunion enters in the bend pipe of turning back of reunion capturing device after growing up, in the steering position of bend pipe lower part of turning back
The change gas flow of flue gas rapidly, so that the particulate matter in flue gas is separated with flue gas, inclined be provided with of bend pipe of turning back is preserved
Component (210), particulate matter are trapped and are stored by reservoir block (210)；
The reunion capturing device includes
Particle agglomeration unit (100), the particle agglomeration unit (100) is interior to be provided with agglomerator spray head (101)；
Capture unit of turning back (200), the capture unit of turning back (200) include reservoir block (210), intake elbow (220) and go out
Gas bend pipe (230), the intake elbow (220) is connected with the bottom of outlet bend pipe (230) and constitutes bend pipe of turning back, described
Reservoir block (210) it is inclined be set on outlet bend pipe (230), particulate matter is settled and is stored in bend pipe of turning back and preserved
In component (210)；
The particle agglomeration unit (100) is set to the top of capture unit of turning back (200), particle agglomeration unit (100)
Bottom is connected with the intake elbow (220) of capture unit of turning back (200).
2. a kind of reunion capture method of flue gas fine particle according to claim 1, it is characterised in that: the particle
Agglomeration unit (100) includes that agglomerator spray head (101), turbulence columns (102) and particle agglomeration room (104), the agglomerator spray
Head (101) and turbulence columns (102) are set to the inside of particle agglomeration room (104), and agglomerator spray head (101) is located at turbulence columns
(102) top.
3. a kind of reunion capture method of flue gas fine particle according to claim 2, it is characterised in that: further include electrostatic
Dust removing units (300), the electrostatic precipitation unit (300) include corona electrode (301), collection electrode (302) and power supply part
(303), the corona electrode (301) is set in particle agglomeration unit (100), and collection electrode (302), which is set to turn back, catches
Collect unit (200) outlet bend pipe (230) on, the corona electrode (301), collection electrode (302) respectively with power supply part
(303) negative and positive electrode is connected.
4. a kind of reunion capture method of flue gas fine particle according to claim 3, it is characterised in that: Step 1: micro-
The specific steps that fine particle is reunited are as follows:
A, flue gas enters particle agglomeration room (104), and agglomerator droplet is sprayed into flue gas at the top of particle agglomeration room (104),
And the injection direction of agglomerator droplet and the flow direction of flue gas on the contrary, flue gas under the effect of turbulence columns (102) flow-disturbing, fine
Irregular direction movement occurs for grain object, and agglomerator droplet, which is sufficiently mixed and reunites with the particulate matter in flue gas, grows up；
B, after particulate matter reunion is grown up, corona electrode (301) carries out corona discharge to particulate matter, makes to take charge on particulate matter.
5. a kind of reunion capture method of flue gas fine particle according to claim 3 or 4, it is characterised in that: Step 2:
The specific steps of trap particulate matter are as follows:
A, the particulate matter in flue gas, which is reunited, grows up, enters after corona discharge and turn back capture unit (200), and particulate matter is with flue gas edge
Move in bend pipe of turning back, particulate matter settles under the collective effect of gravity and Particle Inertia power, is captured in bend pipe lower part of turning back
Reservoir block (210) in；
B, power supply part (303) is collection electrode (302) power supply, so that collection electrode (302) takes the electricity different with particulate matter
Lotus, the particle not settled are trapped by collection electrode (302), and reservoir block (210) are stored in after shaking.
6. a kind of reunion capture method of flue gas fine particle according to claim 5, it is characterised in that: the air inlet
The top of bend pipe (220) is connected by shaking bellows (201) with the bottom of particle agglomeration unit (100), outlet bend pipe (230)
Top be connected by shaking bellows (201) with flue, capture unit of turning back (200) upper and lower in the vertical direction can shake
It swings.
7. a kind of reunion capture method of flue gas fine particle according to claim 6, it is characterised in that: the corona
Electrode (301) is set to the lower part of turbulence columns (102), and the collection electrode (302) is set to reservoir block (210) inlet
Top.
8. a kind of discharge-reducing method of sintering flue gas fine particle, it is characterised in that: the specific steps are by pallet middle and back
Bellows in flue gas introduce reunion capturing device, reunion capturing device by flue gas subparticle reunite, trapping remove, only
Flue gas after change introduces Main Gas Flue of Sintering Machine by pipeline again；Wherein, reunion trapping side of the reunion capturing device to fine particle
Method is the described in any item reunion capture methods of claim 1-7.
9. a kind of discharge-reducing method of sintering flue gas fine particle according to claim 8, it is characterised in that: middle and back
Bellows are in the middle part of pallet to the corresponding bellows in lower section at pallet terminal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078061.5A CN106512563B (en) | 2016-11-30 | 2016-11-30 | A kind of reunion trapping of sintering flue gas subparticle and discharge-reducing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078061.5A CN106512563B (en) | 2016-11-30 | 2016-11-30 | A kind of reunion trapping of sintering flue gas subparticle and discharge-reducing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106512563A CN106512563A (en) | 2017-03-22 |
| CN106512563B true CN106512563B (en) | 2019-01-11 |
Family
ID=58354081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611078061.5A Active CN106512563B (en) | 2016-11-30 | 2016-11-30 | A kind of reunion trapping of sintering flue gas subparticle and discharge-reducing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106512563B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295613A (en) * | 2018-04-18 | 2018-07-20 | 无锡红旗除尘设备有限公司 | It is a kind of can automatic desludging multitube is cooling and agglomeration device |
| CN111102602B (en) * | 2019-12-04 | 2021-03-23 | 重庆大学 | Flue device for reducing emission of fine particulate matters in flue gas of civil heating stove based on phase change agglomeration and wet dust removal |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB373661A (en) * | 1931-02-02 | 1932-06-02 | George Henry Clifford Corner | Improvements in or relating to the separation of liquid particles from steam and other gases and apparatus therefor |
| CN102784536A (en) * | 2012-07-18 | 2012-11-21 | 樊荣 | Spiral pipe gas-water separator |
| CN102814098B (en) * | 2012-09-19 | 2015-01-28 | 巨锋 | Multilevel combined waste gas purifying equipment |
| CN103920354B (en) * | 2013-01-15 | 2016-08-03 | 宝山钢铁股份有限公司 | Steel-making roller slag processes the discharge tower dust arrester of multi-stage spray |
| CN204745985U (en) * | 2015-06-10 | 2015-11-11 | 长春职业技术学院（长春市职业技术教育中心长春市财政学校） | Electrified dust collector |
| CN104888571A (en) * | 2015-06-25 | 2015-09-09 | 山东钢铁股份有限公司 | Industrial flue gas dust removal device |
| CN205095600U (en) * | 2015-10-30 | 2016-03-23 | 施可丰泸州化工有限公司 | Monoammonium phosphate tail gas two -stage dust purification device |
| CN205235644U (en) * | 2015-12-25 | 2016-05-18 | 天津市维海环保工程设备有限公司 | Foam dust -removing device |
-
2016
- 2016-11-30 CN CN201611078061.5A patent/CN106512563B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106512563A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106440840B (en) | A kind of Ore Sintering Process flue gas PM10/2.5Selective emission-reducing system | |
| CN100531862C (en) | Apparatus and method for removing grains with combined action of sound wave and additional seed grain | |
| CN103801168B (en) | The collaborative multiple pollutant associating removing means of a kind of flue gas ash removal and method | |
| CN104324805A (en) | Method for capturing PM2.5 fine particles through water mist charged coagulation for electric precipitation | |
| CN101745284B (en) | Ultrasonic atomizing bag type dust removing device and dust removing method | |
| CN106512563B (en) | A kind of reunion trapping of sintering flue gas subparticle and discharge-reducing method | |
| CN106362880B (en) | Bipolar charge-cyclone separator and technique for flue gas dedusting | |
| CN206222955U (en) | A kind of selective emission-reducing system of Ore Sintering Process flue gas PM10/2.5 | |
| CN100509168C (en) | Method for removal of inhalable particles in coal | |
| CN104069712A (en) | Chemical coagulation-based 'electricity-bag' integrated compound dust removing process | |
| CN206343044U (en) | A kind of agglomeration for iron mine flue gas fine particulate matter magnetic field reunion capturing device | |
| CN108405184A (en) | A kind of industrial waste gas fine particle removing device | |
| CN106215538B (en) | One kind is used to sinter/pelletizing wet desulfurization flue gas deep treatment system | |
| CN105561726B (en) | One kind carrying acting type wet static dedusting demister | |
| CN203853168U (en) | Device for removing PM2.5 from wet flue gas | |
| CN106583042B (en) | A method of sintering flue gas fine particle is removed based on pulsed discharge | |
| CN106512632B (en) | A kind of sintering flue gas fine particle is turned back capture unit | |
| CN104069713B (en) | A kind of electricity-bag dust collecting process strengthening coalescence | |
| CN206355783U (en) | One kind sintering flue gas fine particulate matter is turned back capture unit and reunion capturing device | |
| CN105080271A (en) | Cyclone charged water mist air purifying dedusting method and system thereof | |
| CN206008253U (en) | One kind is used for sintering/pelletizing wet desulfurization flue gas deep treatment system | |
| CN106694225A (en) | Device for removing fine particulate matter of sintering flue gas by pulse corona charge | |
| CN206382119U (en) | A kind of device of pulse corona charge removing sintering flue gas fine particulate matter | |
| CN106039928B (en) | Compact high flow rate strainer acoustic agglomerator fine particulates emission reduction device and method | |
| CN205868577U (en) | Bipolar lotus that is used for flue gas dust removal whirlwind separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |