CN108905485A - One kind streams and coagulation and cooperates with fine particle and heavy metals trapping device and method - Google Patents
One kind streams and coagulation and cooperates with fine particle and heavy metals trapping device and method Download PDFInfo
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- CN108905485A CN108905485A CN201810758991.8A CN201810758991A CN108905485A CN 108905485 A CN108905485 A CN 108905485A CN 201810758991 A CN201810758991 A CN 201810758991A CN 108905485 A CN108905485 A CN 108905485A
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- collecting plate
- baffling
- fine particle
- coagulation
- flue gas
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- 239000010419 fine particle Substances 0.000 title claims abstract description 50
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 35
- 230000015271 coagulation Effects 0.000 title claims abstract description 29
- 238000005345 coagulation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title description 12
- 239000000428 dust Substances 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 18
- 240000002853 Nelumbo nucifera Species 0.000 claims abstract description 12
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims abstract description 12
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 51
- 239000003546 flue gas Substances 0.000 claims description 51
- 230000000694 effects Effects 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 239000012717 electrostatic precipitator Substances 0.000 claims description 6
- 238000004581 coalescence Methods 0.000 claims description 5
- 239000003517 fume Substances 0.000 claims description 5
- 238000005054 agglomeration Methods 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 241001581440 Astroides Species 0.000 claims description 3
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000001926 trapping method Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 238000009856 non-ferrous metallurgy Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D51/10—Conditioning the gas to be cleaned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/016—Pretreatment of the gases prior to electrostatic precipitation by acoustic or electromagnetic energy, e.g. ultraviolet light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
It is streamed the present invention relates to one kind and coagulation and cooperates with fine particle and heavy metals trapping device, including shell (1), baffling collecting plate (2), positive corona pole (3), negative corona pole (4), tabulator bars (5)；Multiple baffling collecting plate (2) settings are in shell (1), it is in multiple split channels that exhaust gases passes in shell (1), which are separated, positive corona pole (3) and negative corona pole (4) are respectively set in adjacent split channel, by different charges on the particle lotus passed through in adjacent split channel respectively, more tabulator bars (5) of scattering device in each split channel.Compared with prior art, fine particle depth trapping synchronous with heavy metal may be implemented in conjunction with subsequent high-efficiency dust remover by flow-disturbing and coagulation and collaborative device in the present invention.
Description
Technical field
The invention belongs to the non-ferrous metal metallurgy flue gas fine particle of field of environment protection and heavy metals emission control technology,
It is streamed more particularly, to one kind and coagulation and cooperates with fine particle and heavy metals trapping device and method.
Background technique
China's non-ferrous metal yield occupy first place in the world for years, is made that significant contribution for national economy.But
Volume of smoke and heavy metal can be contained in the industrial smoke and ugitive gas collection of nonferrous metallurgical process, it can be to human health and ring
Border causes great harm.The direction of the current China's air contaminant treatment in China changes via power industry to non-electrical industry.
Chinese Ministry of Environmental Protection has put into effect the discharge standard of special limit value for nonferrous smelting industry, to the fine particle in non-ferrous metal metallurgy flue gas
Stringent emission request is proposed with heavy metal.Therefore, the flue gas pollutant in nonferrous metallurgical process is urgently administered.
Non-ferrous smelt enterprise relies on dust-extraction unit to trap the heavy metal in flue gas together with dust mostly.However,
The heavy metals such as lead/mercury in non-ferrous metal metallurgy flue gas are most of under the high temperature conditions to be existed in the form of state of volatilizing, and is being cooled down
Fine particle is in turn translated into the process.Heavy metal treatment effeciency of the existing fume dust remover to fine particle and volatilization state
It is relatively low.There is patent of invention CN102125788A to propose a kind of utilization bag-type dust combination wet shotcrete technology atomizing eddy flow plate absorption
The method of tower purifies non-ferrous metal industry lead fume and lead dust.It is net that CN102319531A proposes a kind of staged filtration lead dust
Makeup is set.These methods can effectively remove most dust, but to the heavy metal for belonging to fine particle and state of volatilizing
Same treatment effect is bad, is unable to satisfy the requirement of the special emission limit of nonferrous smelting industry flue gas.Therefore, it is necessary to seek new
Technique or method to fine particle and volatilization state heavy metal synchronize trapping.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind to stream with coagulation simultaneously
Cooperate with fine particle and heavy metals trapping device and method.
The purpose of the present invention can be achieved through the following technical solutions：One kind stream with coagulation and cooperate with fine particle with
Heavy metals trapping device, which is characterized in that including shell (1), baffling collecting plate (2), positive corona pole (3), negative corona pole (4),
Tabulator bars (5)；In shell (1), it is in multiple points that the exhaust gases passes in shell (1), which are separated, for multiple baffling collecting plate (2) settings
Positive corona pole (3) and negative corona pole (4) is respectively set in adjacent split channel in circulation road, will pass through adjacent split channel respectively
Different charges on interior particle lotus, more tabulator bars (5) of scattering device in each split channel.
The device further includes rapping-off-ash device (6), high voltage power supply (7) and ash bucket (8), the rapping-off-ash dress
It sets (6) to be arranged on shell (1), and connects baffling collecting plate (2), the high voltage power supply (7) is separately connected positive corona pole (3)
With negative corona pole (4), the ash bucket (8) is arranged below each split channel, and the rapping-off-ash device (6) is mechanical vibration
Device is beaten, will be enriched among the vibration of the dust on baffling collecting plate (2) track lowering ash bucket (8) by mechanical vibrator.
The baffling collecting plate (2) is in multistage concaveconvex structure shape, including the parallel-segment collection parallel with flue gas circulating direction
Dirt plate and the baffling section collecting plate in a certain angle with flue gas circulating direction.
The height of two neighboring parallel-segment collecting plate is different on same baffling collecting plate (2), and passes through baffling section collecting plate
Connection, parallel-segment collecting plate is oppositely arranged on adjacent baffling collecting plate (2), and most narrow space is from for 50- between adjacent baffling collecting plate
From for 100-400mm, baffling section collecting plate length is 100-150mm, parallel-segment collecting plate length 300- by 200mm, most width
600mm。
The baffling collecting plate (2) is equipped with multiple flue gas deflector holes (9), which is 40-
100mm, distance is 40-100mm between adjacent flue gas deflector hole (9) center.
The height to width ratio of the shell (1) is 1:1-1.5:1.
The positive corona pole (3) and negative corona pole (4) is staggered in exhaust gases passes, wherein positive corona pole (3) position
In front row, the anode of high voltage power supply (7) is connected, negative corona pole (4) are located at heel row, connect the cathode of high voltage power supply (7), baffling collection
Dirt plate (2) ground connection.
The pattern of the positive corona pole (3) and negative corona pole (4) is astroid, prickle wire, jaggies, fried dough twist wire shaped
One of.
The tabulator bars (5) are teflon rod or polyfluortetraethylene pipe or apply the metal tube of insulating layer outside, pass through
Homophilic charge repels and " inverse corona " effect, reduces the deposition of dust, enhancing coalescence effect；
Tabulator bars (5) short axle is 20-100mm, and long axis is 1.0-1.5 times of short axle；1-5 meters of height, tabulator bars (5) setting
In positive corona pole (3) and negative corona pole (4) front end 100-500mm.
The high voltage power supply (7) is DC power supply, and voltage range is between 20-100kV；Positive electrode and positive high voltage power supply
High-pressure stage be connected, cathode is connected with the high-pressure stage of negative supply, and baffling collecting plate (2) and shell (1) are as above-mentioned two power supply
Earthing pole.
The flue section before bag filter, electrostatic precipitator or electric-bag complex dust collector is arranged in the device, into
The flue gas for entering device had carried out cooling processing, temperature section of the flue-gas temperature between 90-250 degree.
A method of it is streamed using above-mentioned apparatus and coagulation and cooperates with fine particle and heavy metals trapping, feature exists
In including the following steps：
The first step, flue gas enter device by split channel composed by baffling collecting plate (2), are passing through positive corona area
(3) when, partial particulate object is by charge positive charge；By tabulator bars (5) and the flue gas fine particle of negative corona area (4) by bear electricity；
Second step, partial fume move in respective split channel, by tabulator bars (5) and positive corona area (3)
Or continue after negative corona area (4) respectively by charge positive charge or negative electrical charge；
Third step, remaining flue gas is logical into adjacent shunting by the flue gas deflector hole (9) on baffling collecting plate (2)
Road, and by lotus xenogenesis charge after tabulator bars (5) and the electrode opposite with previous stage electrode；
4th step, flue gas via tabulator bars (5) and baffling circuit board (2) gap flow further downstream, flow-disturbing effect under
The collision opportunities for agglomeration between the mixability of air-flow and fine particle is increased, thus fine grained is agglomerated into larger particles；
5th step, when flue gas is behind different corona zones, for fine particle by lotus difference charge, fine particle is different in charge
Property it is attracting under the action of collide reunite, can also be agglomerated into larger particles；
6th step, after above-mentioned multiple groups flow-disturbing and coagulation and component, fine particle is by flow-disturbing and charge are dual repeatedly
Effect is reunited, and is formed larger particle object, is then efficiently removed large particle by subsequent cloth bag or electrostatic precipitator；
7th step, the dust being enriched on baffling collecting plate (2), among rapping-off-ash device (6) vibration track lowering ash bucket.
Compared with prior art, the present invention has the advantages that following some：
1, the present invention to the fine particle difference lotus positive electricity in flue gas or is born by the positive electrode and negative electrode being staggered
Electricity makes it reunite under the action of there is a natural attraction between the sexes for charge；
2, the present invention strengthens flue gas and mixes journey using the flow-disturbing and guide functions of the flow-guiding mouth on tabulator bars and baffle plate
Degree, and increase the collision opportunities for agglomeration between fine particle；
3, the present invention using coagulation and acts on the adsorbing and trapping effect for strengthening fine particle to heavy metal；
4, the present disclosure additionally applies for flue gas fine particle, the huge sum of moneys of the industries such as waste incinerator, metal smelt, manufacture of cement
Belong to the collaboration emission control with condensable substance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of apparatus of the present invention；
Fig. 2 is another structural schematic diagram of apparatus of the present invention.
Specific embodiment
Invention is further explained combined with specific embodiments below.The present embodiment is before with technical solution of the present invention
Put and implemented, give detailed embodiment and specific operation process, but protection scope of the present invention be not limited to it is following
Embodiment.
The present invention carries out experimental study using the pilot scale flue gas purification device in laboratory.There is rotation stove roasting lead concentrate to mention
For smelting lead, exhaust gas volumn 300m3/h.Flue gas is after the pre- dedusting of cyclone dust collectors and cooling processing, dust-laden in flue gas
Concentration is 8000mg/m3, heavy metal Hg concentration is 2mg/m3, temperature is 180 DEG C.Flue gas passes through a square flue (0.10m
After 0.10m), by the further dedusting of subsequent bag filter, the dust content in flue gas is reduced to 50mg/m3Left and right, weight
Mercury metal concentration is 0.50mg/m3。
Embodiment 1
In flue before bag filter horizontal segment installed additional it is small-sized stream with coagulation and cooperate with fine particle and a huge sum of money
Belong to capturing device.
As shown in Fig. 1~2, streams and coagulation and cooperate with fine particle and heavy metals trapping device, including shell 1, baffling
Collecting plate 2, positive corona pole 3, negative corona pole 4, tabulator bars 5, rapping-off-ash device 6, high voltage power supply 7 and ash bucket 8, flue gas deflector hole
9；Multiple baffling collecting plates 2 are arranged in shell 1, and it is in multiple split channels, adjacent shunting that the exhaust gases passes in shell 1, which are separated,
Positive corona pole 3 and negative corona pole 4 are respectively set in channel, by different electricity on the particle lotus passed through in adjacent split channel respectively
Lotus, more tabulator bars 5 of scattering device in each split channel.The rapping-off-ash device 6 is arranged on shell 1, and connects folding
Collecting plate 2 is flowed, the high voltage power supply 7 is separately connected positive corona pole 3 and negative corona pole 4, and the ash bucket 8 is arranged in each shunting
Below channel, the rapping-off-ash device 6 is mechanical shaking device, will be enriched on baffling collecting plate 2 by mechanical vibrator
Dust vibration track lowering ash bucket 8 among.
The baffling collecting plate 2 is in multistage concaveconvex structure shape, including the parallel-segment dust parallel with flue gas circulating direction
Plate and the baffling section collecting plate in a certain angle with flue gas circulating direction.Two neighboring parallel-segment collection on same baffling collecting plate 2
The height of dirt plate is different, and is connected by baffling section collecting plate, and parallel-segment collecting plate is oppositely arranged on adjacent baffling collecting plate 2,
Most narrow space is from for 100mm between adjacent baffling collecting plate, and most width is from for 200mm, and baffling section collecting plate length is 100mm, in parallel
Section collecting plate length 300mm.4 row's electrodes are set altogether, are positive corona pole 3 (2), negative corona pole 4 (1), positive corona respectively
Pole 3 (2) and negative corona pole 4 (1), the widest part between adjacent baffling collecting plate.
The baffling collecting plate 2 is equipped with multiple flue gas deflector holes 9, which is 40mm, adjacent cigarette
Distance is 40mm between 9 center of conductance discharge orifice.
The height of the shell 1 is 500mm, width 500mm, length 1460mm.
The positive corona pole 3 and negative corona pole 4 is staggered in exhaust gases passes, and wherein positive corona pole 3 is located at front row,
The anode of high voltage power supply 7 is connected, negative corona pole 4 is located at heel row, connects the cathode of high voltage power supply 7, and baffling collecting plate 2 is grounded.
The pattern of the positive corona pole 3 and negative corona pole 4 is astroid, field 500mm, before rear every electrode of three rows
A piece corresponding tabulator bars 5 are set at 100mm.
The tabulator bars 5 are teflon rod or polyfluortetraethylene pipe or apply the metal tube of insulating layer outside, by same
Property electrical charge rejection and " inverse corona " effect, reduce the deposition of dust, enhancing coalescence effect；
5 short axle of tabulator bars is 20mm, and long axis is 1.5 times of short axle；Highly 1 meter, tabulator bars 5 are arranged in 3 He of positive corona pole
4 front end 100mm of negative corona pole.
The high voltage power supply 7 is DC power supply, and voltage range is between 20-100kV；Positive electrode and positive high voltage power supply
High-pressure stage is connected, and cathode is connected with the high-pressure stage of negative supply, the earthing pole of baffling collecting plate 2 and shell 1 as above-mentioned two power supply.
The flue section before bag filter, electrostatic precipitator or electric-bag complex dust collector is arranged in the device, into
The flue gas for entering device had carried out cooling processing, temperature section of the flue-gas temperature between 90-250 degree.
The step of using above-mentioned apparatus purifying smoke, is as follows：
The first step, flue gas enter device by split channel composed by baffling collecting plate 2, when by positive corona area 3,
Partial particulate object is by charge positive charge；By tabulator bars 5 and the flue gas fine particle in negative corona area 4 by bear electricity；
Second step, partial fume move in respective split channel, by tabulator bars 5 and positive corona area 3 or bear
Continue behind corona zone 4 respectively by charge positive charge or negative electrical charge；
Third step, remaining flue gas are entering adjacent split channel by the flue gas deflector hole 9 on baffling collecting plate 2, and
By lotus xenogenesis charge after tabulator bars 5 and the electrode opposite with previous stage electrode；
4th step, flue gas increase under flow-disturbing effect via the gap flow further downstream of tabulator bars 5 and baffling circuit board 2
Thus collision opportunities for agglomeration between the mixability and fine particle of air-flow, fine grained are agglomerated into larger particles；
5th step, when flue gas is behind different corona zones, for fine particle by lotus difference charge, fine particle is different in charge
Property it is attracting under the action of collide reunite, can also be agglomerated into larger particles；
6th step, after above-mentioned multiple groups flow-disturbing and coagulation and component, fine particle is by flow-disturbing and charge are dual repeatedly
Effect is reunited, and is formed larger particle object, is then efficiently removed large particle by subsequent cloth bag or electrostatic precipitator；
7th step, the dust being enriched on baffling collecting plate 2, among the vibration track lowering ash bucket of rapping-off-ash device 6.
Through detecting, when installation is streamed and coagulation and cooperates with fine particle and after heavy metals trapping device, bag filter goes out
Dust content in mouth flue gas is reduced to 30mg/m3Left and right, heavy metal Hg concentration is about 0.40mg/m3。
Embodiment 2
In flue before bag filter horizontal segment installed additional it is small-sized stream with coagulation and cooperate with fine particle and a huge sum of money
Belong to capturing device.The device key dimension is as follows：Height is 500mm, width 500mm, length 1460mm, baffling collecting plate
Most narrow width is 100mm, and most wide degree is 200mm, baffling section collecting plate length 100mm, and parallel-segment collecting plate length is
300mm, water conservancy diversion bore dia are 50mm.4 row's electrodes are set altogether, are positive electrode (2), negative electrode (1), positive electrode (2 respectively
Root) and negative electrode (1), electrode is star, field 500mm, and a corresponding flow-disturbing is arranged at 100mm before rear every electrode of three rows
Stick, tabulator bars short axle are 20mm, and long axis is the 30mm, length 500mm of short axle.It is integrated apart from baffling to stream stick and electrode centers
The distance in wooden partition face is 100mm.1st, 3 row's electrodes are connect into high-voltage power cathode；2nd, 4 row's electrodes are connect into high voltage power supply cathode；
The metal inside for streaming stick is connected with baffling circuit board with ground wire.Positive source voltage is adjusted to 20kV, by negative electricity
Source voltage is adjusted to 20kV.Through detecting, after charged coalescence and flow-disturbing, water conservancy diversion double action, the particle of bag filter outlet
Object concentration drops to 15mg/m3, heavy metal Hg concentration is about 0.20mg/m3。
Embodiment 3
In flue before bag filter horizontal segment installed additional it is small-sized stream with coagulation and cooperate with fine particle and a huge sum of money
Belong to capturing device.The device key dimension is as follows：Height is 500mm, width 500mm, length 1460mm, baffling collecting plate
Most narrow width is 100mm, and most wide degree is 200mm, baffling section collecting plate length 100mm, and parallel-segment collecting plate length is
300mm, water conservancy diversion bore dia are 50mm.4 row's electrodes are set altogether, are positive electrode (2), negative electrode (1), positive electrode (2 respectively
Root) and negative electrode (1), electrode is star, field 500mm, and a corresponding flow-disturbing is arranged at 100mm before rear every electrode of three rows
Stick, tabulator bars short axle are 20mm, and long axis is the 30mm, length 500mm of short axle.It is integrated apart from baffling to stream stick and electrode centers
The distance in wooden partition face is 100mm.1st, 3 row's electrodes are connect into high-voltage power cathode；2nd, 4 row's electrodes are connect into high voltage power supply cathode；
The metal inside for streaming stick is connected with baffling circuit board with ground wire.Positive source voltage is adjusted to 40kV, by negative electricity
Source voltage is adjusted to 40kV.Through detecting, after charged coalescence and flow-disturbing, water conservancy diversion double action, the particle of bag filter outlet
Object concentration drops to 8mg/m3, heavy metal Hg concentration is about 0.05mg/m3。
Claims (12)
1. one kind streams and coagulation and cooperates with fine particle and heavy metals trapping device, which is characterized in that including shell (1), folding
Flow collecting plate (2), positive corona pole (3), negative corona pole (4), tabulator bars (5)；Multiple baffling collecting plates (2) are arranged in shell (1)
Interior, it is in multiple split channels that the exhaust gases passes in shell (1), which are separated, and positive corona pole (3) are respectively set in adjacent split channel
With negative corona pole (4), by different charges on the particle lotus passed through in adjacent split channel respectively, scattering device in each split channel
More tabulator bars (5).
2. one kind according to claim 1 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the device further includes rapping-off-ash device (6), high voltage power supply (7) and ash bucket (8), the rapping-off-ash device
(6) be arranged on shell (1), and connect baffling collecting plate (2), the high voltage power supply (7) be separately connected positive corona pole (3) and
Negative corona pole (4), the ash bucket (8) are arranged below each split channel, and the rapping-off-ash device (6) is mechanical vibrator
Device will be enriched among the vibration of the dust on baffling collecting plate (2) track lowering ash bucket (8) by mechanical vibrator.
3. one kind according to claim 1 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the baffling collecting plate (2) is in multistage concaveconvex structure shape, including the parallel-segment collecting plate parallel with flue gas circulating direction
With the baffling section collecting plate in a certain angle with flue gas circulating direction.
4. one kind according to claim 3 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the height of two neighboring parallel-segment collecting plate is different on same baffling collecting plate (2), and is connected by baffling section collecting plate
It connects, parallel-segment collecting plate is oppositely arranged on adjacent baffling collecting plate (2), and most narrow space is from for 50- between adjacent baffling collecting plate
From for 100-400mm, baffling section collecting plate length is 100-150mm, parallel-segment collecting plate length 300- by 200mm, most width
600mm。
5. one kind according to claim 3 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the baffling collecting plate (2) is equipped with multiple flue gas deflector holes (9), which is 40-
100mm, distance is 40-100mm between adjacent flue gas deflector hole (9) center.
6. one kind according to claim 1 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the height to width ratio of the shell (1) is 1:1-1.5:1.
7. one kind according to claim 2 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the positive corona pole (3) and negative corona pole (4) are staggered in exhaust gases passes, before wherein positive corona pole (3) are located at
Row connects the anode of high voltage power supply (7), and negative corona pole (4) are located at heel row, connect the cathode of high voltage power supply (7), baffling collecting plate
(2) it is grounded.
8. one kind according to claim 1 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the pattern of the positive corona pole (3) and negative corona pole (4) is astroid, in prickle wire, jaggies, fried dough twist wire shaped
One kind.
9. one kind according to claim 1 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the tabulator bars (5) are teflon rod or polyfluortetraethylene pipe or apply the metal tube of insulating layer outside, pass through the same sex
Electrical charge rejection and " inverse corona " effect reduce the deposition of dust, enhancing coalescence effect；
Tabulator bars (5) short axle is 20-100mm, and long axis is 1.0-1.5 times of short axle；1-5 meters of height, tabulator bars (5) are arranged just
Corona discharge electrode (3) and negative corona pole (4) front end 100-500mm.
10. one kind according to claim 2 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the high voltage power supply (7) is DC power supply, and voltage range is between 20-100kV；Positive electrode and positive high voltage power supply
High-pressure stage is connected, and cathode is connected with the high-pressure stage of negative supply, baffling collecting plate (2) and shell (1) connecing as above-mentioned two power supply
Earth polar.
11. one kind according to claim 1 streams and coagulation and cooperates with fine particle and heavy metals trapping device, feature
It is, the flue section before bag filter, electrostatic precipitator or electric-bag complex dust collector is arranged in the device, into dress
The flue gas set had carried out cooling processing, temperature section of the flue-gas temperature between 90-250 degree.
12. a kind of streamed using any device of claim 1-11 and coagulation and cooperate with fine particle and heavy metals trapping
Method, which is characterized in that include the following steps：
The first step, flue gas enter device by split channel composed by baffling collecting plate (2), when by positive corona area (3),
Partial particulate object is by charge positive charge；By tabulator bars (5) and the flue gas fine particle of negative corona area (4) by bear electricity；
Second step, partial fume move in respective split channel, by tabulator bars (5) and positive corona area (3) or bear
Continue behind corona zone (4) respectively by charge positive charge or negative electrical charge；
Third step, remaining flue gas are entering adjacent split channel by the flue gas deflector hole (9) on baffling collecting plate (2), and
By lotus xenogenesis charge after tabulator bars (5) and the electrode opposite with previous stage electrode；
4th step, flue gas increase under flow-disturbing effect via the gap flow further downstream of tabulator bars (5) and baffling circuit board (2)
Thus collision opportunities for agglomeration between the mixability and fine particle of air-flow, fine grained are agglomerated into larger particles；
5th step, when flue gas is behind different corona zones, fine particle is by lotus difference charge, and fine particle is in charge opposite sex phase
It collides and reunites under the action of suction, can also be agglomerated into larger particles；
6th step, after above-mentioned multiple groups flow-disturbing and coagulation and component, fine particle passes through flow-disturbing and charge double action repeatedly
Reunite, forms larger particle object, then efficiently removed large particle by subsequent cloth bag or electrostatic precipitator；
7th step, the dust being enriched on baffling collecting plate (2), among rapping-off-ash device (6) vibration track lowering ash bucket.
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| CN201810758991.8A CN108905485B (en) | 2018-07-11 | 2018-07-11 | Device and method for trapping fine particulate matters and heavy metals in cooperation with streaming and electrocoagulation |
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| CN113457407A (en) * | 2021-06-30 | 2021-10-01 | 广西科学院 | Waste gas treatment process for graphene material production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102406A (en) * | 2019-04-02 | 2019-08-09 | 华北电力大学（保定） | It is a kind of for reuniting and trapping the cold electrode electric dust-removing process of condensable particulate matter |
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| CN110496704A (en) * | 2019-08-06 | 2019-11-26 | 西安交通大学 | A kind of fine particle agglomeration device of bipolar atomization pre electrified |
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| CN111604176A (en) * | 2020-04-23 | 2020-09-01 | 中国矿业大学 | Recyclable environment-friendly device and method for cyclone electrocoagulation and industrial dedusting |
| CN111604176B (en) * | 2020-04-23 | 2021-10-29 | 中国矿业大学 | Recyclable environment-friendly device and method for cyclone electrocoagulation and industrial dedusting |
| CN111992333A (en) * | 2020-08-25 | 2020-11-27 | 山东国舜建设集团有限公司 | Industrial flue gas dust remover, flue gas treatment system and method |
| CN113457407A (en) * | 2021-06-30 | 2021-10-01 | 广西科学院 | Waste gas treatment process for graphene material production |
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