CN207734804U - A kind of low temperature plasma integrated purification device of removing mercury He bioxin - Google Patents
A kind of low temperature plasma integrated purification device of removing mercury He bioxin Download PDFInfo
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- CN207734804U CN207734804U CN201721476361.9U CN201721476361U CN207734804U CN 207734804 U CN207734804 U CN 207734804U CN 201721476361 U CN201721476361 U CN 201721476361U CN 207734804 U CN207734804 U CN 207734804U
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- bioxin
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Abstract
The utility model discloses a kind of low temperature plasma integrated purification devices of removing mercury He bioxin, including plasma reactor and nano ceramics adsorbent equipment.Flue gas in preheater enters plasma reactor through air inlet, and the oxygen radical generated using low temperature plasma is by atomic state mercury (Hg0) oxidation generation gaseous oxidation mercury (Hg2+), simultaneously bioxin molecule is bombarded using the high energy electron that low temperature plasma generates, it is set to be cracked to form the lower small-molecule substance of nontoxic or toxicity, plasma reactor outlet is connected with air-introduced machine, detection mouth and pressure monitor point is arranged in junction, under air-introduced machine effect, flue gas enters nano ceramics adsorbent equipment, the gaseous oxidation mercury (Hg generated after plasma reactor is handled2+) and some small-molecule substances be attracted on nano ceramics cellular board, last flue gas is expelled directly out through gas outlet.The utility model purifier can by flying dust mercury and bioxin carry out harmless treatment before cement kiln, treatment effeciency is high, and low energy consumption, and simple in structure, strong applicability, and operating cost is low.
Description
Technical field
The utility model belongs to field of environment protection, and disclosure is related to cement kiln and is removed before kiln during cooperative disposal flying dust
The purifier of mercury He bioxin, and in particular to multiple pollutant is assisted based on low temperature plasma-nano ceramics coupling technique
With control removal device and method.
Background technology
With the continuous growth of industrial boom and energy-output ratio, basic industries of the cement industry as China obtain
Huge development has been arrived, also be known as dissolving various wastes by international community and has cured the effective way of harmful substance, in state
It is interior to have been carried out industrialization using flying dust cement baking, but contain the pollutants such as a large amount of heavy metal Hg He bioxin in flying dust,
Since the volatilization of mercury, condensation temperature are low (357 DEG C), mercury almost all volatilization in preheater in flying dust, with the shape of mercury vapour
Formula stops in the offgas, seldom enters in cement kiln or takes kiln system out of with clinker, most of mercury are rich again after flue gas cooling
Collection is on the surface of fly ash granule.
Generally there are three types of existing forms, i.e. atomic state mercury (Hg for mercury in flying dust0), gaseous oxidation mercury (Hg2+) and particulate form
Mercury (Hgp).The mercury physics of different shape, chemical property differ greatly, such as gaseous oxidation mercury (Hg2+) soluble easily in water, and easily quilt
Particulate matter absorption in flue gas, therefore easily detached by wet desulphurization and conventional dust removal equipment.Particle mercury (Hgp) also easily by dedusting
Device detaches, and atmospheric residence time is shorter.On the contrary due to atomic state mercury (Hg0) not soluble in water, desulfurization and cleaner
It is difficult to be captured, this part mercury almost all is discharged into the atmosphere.Mercury has persistence, bioconcentration and toxicity, is one
Kind there are the environmental contaminants of global migration, pollution has become hot spot, difficult point and the focal issue of global concern, and by
It is included in October, 2013 signature《Minamata pact about mercury》.China is air mercury emissions big country, is ground according to Chinese Environmental Science Institute
Study carefully interpretation of result, estimation China's cement industry mercury annual emissions are about 89~144t, are after coal-fired and non-ferrous metal metallurgy
The third-largest mercury emissions source.China's cement industry is in Transformation Development period at present, and every environmental protection standard requires to greatly improve,
And the direction that wherein cement kiln synergic processing waste makes the transition as environmental protection, then it is faced with tightened up environmental requirement.
For mercury pollution control, its technological difficulties is atomic state mercury (Hg at present0) control problem, low temperature plasma
As a new technology of pollutant process, it is widely used in air contaminant treatment field, is discharged and generated by high-frequency impulse
The strong oxidizers such as high energy electron and hydroxyl radical free radical, ozone, these strong oxidizers can be by atomic state mercury (Hg0) oxidation generation gas
State mercury oxide (Hg2+), while a large amount of high energy electron bombards bioxin molecule at a terrific speed, make its be cracked to form it is nontoxic or
The lower small-molecule substance of toxicity, low temperature plasma can effectively be realized to mercury He the collaboration control of the multiple pollutants such as bioxin
System, and the generation of secondary pollution can be avoided.
For pollutant loss problem of cement kiln during cooperative disposal flying dust, the utility model proposes it is a kind of will be low
Isothermal plasma-nano ceramics coupling technique is used for during cement kiln synergic processing flying dust removing mercury before kiln He bioxin
Purifier.
Utility model content
The utility model patent includes plasma reactor：Air inlet, deflector, plasma processing apparatus, power supply system
System；Nano ceramics adsorbent equipment：Nano ceramics cellular board, gas outlet.Flue gas in preheater enters plasma through air inlet
Reactor is handled, and plasma reactor outlet is connected with air-introduced machine, and detection mouth and pressure monitor point is arranged in junction, draws
The other end of wind turbine is connected with nano ceramics adsorbent equipment, and by two section apparatus, treated that flue gas is discharged through gas outlet.
It further illustrates, spool formula plasma processing apparatus is installed in plasma reactor, using pulsed discharge side
Formula, a diameter of 50-100mm of spool, wall thickness 6mm, plasma processing apparatus overall construction and interior electrode are stainless steel gold
Belong to material and metal external electrode is grounded；One layer of homogeneous nanometer is electroplated in the inner wall of plasma processing apparatus
Ba0.8Sr0.2Zr0.1Ti0.9O3Filler.
It further illustrates, the nano ceramics cellular board of setting " W " form, anti-through plasma in nano ceramics adsorbent equipment
Gaseous oxidation mercury (the Hg generated after answering device to handle2+) and some lower small-molecule substances of nontoxic or toxicity be attracted to nanometer pottery
On porcelain cellular board.
It further illustrates, nanometer Ba0.8Sr0.2Zr0.1Ti0.9O3Filler is in BaTiO3It is middle to mix a certain amount of strontium, zinc, zirconium
And tin, these Doped ions even into parent lattice, the dielectric constant of the filler can reach at normal temperatures 12000 with
On, compare BaTiO3Pure phase improves 10 times, this makes Ba0.8Sr0.2Zr0.1Ti0.9O3Filler can be sent out under smaller electric field strength
Raw polarization, greatly enhances the strength of discharge of plasma reactor, obtains a large amount of high energy electron, hydroxyl radical free radical, ozone etc.
Active particle, improves the energy utilization efficiency of plasma reactor, and reduces the energy consumption of plasma reactor.
The utility model is two-part structure, has simple in structure, and floor space is small, and treatment effeciency is high, and low energy consumption, without two
The advantages that secondary pollution.
Description of the drawings
Fig. 1 is utility model device structural schematic diagram.(1- plasma reactors；2- plasma electrical sources；3- air inducing
Machine；4- controlled valves；5- nano ceramics adsorbent equipments；6- nano ceramics cellular board)
Fig. 2 is the plasma processing apparatus schematic diagram in plasma reactor.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings, but the scope of protection of the utility model and unlimited
In this.
As shown in Figure 1, utility model device includes plasma reactor and nano ceramics adsorbent equipment, plasma
Spool formula plasma processing apparatus and plasma electrical source 2 are installed in reactor, are equipped in nano ceramics adsorbent equipment " W "
The nano ceramics cellular board 6 of form.Flue gas in preheater is after air inlet, deflector evenly into each plasma treatment
Unit, since the inner wall of plasma processing apparatus is coated with a nanometer Ba0.8Sr0.2Zr0.1Ti0.9O3Filler, therefore in plasma treatment
It will produce a large amount of high energy electron, hydroxyl radical free radical, ozone isoreactivity particle, the atomic state mercury (Hg in flue gas in unit0) and
The a series of physical chemical reaction such as ionization, cracking, oxidation, atomic state mercury occur in plasma processing apparatus for bioxin molecule
(Hg0) by oxidation generation gaseous oxidation mercury (Hg2+) , bioxin molecules are cleaved and generate fragment group or to generate other nontoxic or malicious
The lower small-molecule substance of property.
In nano ceramics adsorbent equipment, gaseous oxidation mercury (Hg that flue gas generates after plasma reactor is handled2+)
It is attracted on nano ceramics plate cellular board with some lower small-molecule substances of nontoxic or toxicity.
As shown in Fig. 2, for integrated spool formula plasma processing apparatus module, metal external electrode and ground connection, electricity in high pressure
Pole, modular high-voltage pulse power source.Flue gas enters in spool formula plasma reaction unit, occurs in discharge plasma section
Redox reaction.Airflow direction is identical as the direction of interior electrode, and external electrode is directly connected on the metal segments on cylinder, forms one
The corona treatment area of stable discharging.The plasma processing apparatus be stainless steel metal tube, a diameter of 50-
100mm, wall thickness 6mm, high pressure inner electrode diameter are 1-30mm, and length is 300-1100mm.Each module integrated reactor
Can be as needed, it is equipped with the plasma processing apparatus of respective barrel number.
The content of utility model is only the citing of the way of realization of novel design, all using same replacement or equivalent change
It changes, improved technical solution is all fallen within the scope of protection of the utility model.
Claims (2)
1. a kind of low temperature plasma integrated purification device of removing mercury He bioxin, it is characterised in that：It is anti-including plasma
Device (1) and nano ceramics adsorbent equipment (5), two section apparatus is answered to be connected by air-introduced machine；It is equipped in plasma reactor (1)
Ion processing unit and plasma electrical source (2), the interior nano ceramics bee for being equipped with " W " form of nano ceramics adsorbent equipment (5)
Nest plate (6).
2. the apparatus according to claim 1, it is characterised in that：The plasma processing apparatus is line core structure, by more
The plasma reaction unit assembled in parallel of a round tube structure forms, and each plasma reaction unit is all made of stainless steel metal material
Matter, a diameter of 50-100mm, wall thickness 6mm, high pressure inner electrode diameter are 1-30mm, and length is 300-1100mm, using height
Press the pulse power, plasma reaction unit that can adapt to different air quantity processing requirements with modularization assembling and splicing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721476361.9U CN207734804U (en) | 2017-11-08 | 2017-11-08 | A kind of low temperature plasma integrated purification device of removing mercury He bioxin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721476361.9U CN207734804U (en) | 2017-11-08 | 2017-11-08 | A kind of low temperature plasma integrated purification device of removing mercury He bioxin |
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| CN207734804U true CN207734804U (en) | 2018-08-17 |
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| CN201721476361.9U Active CN207734804U (en) | 2017-11-08 | 2017-11-08 | A kind of low temperature plasma integrated purification device of removing mercury He bioxin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200742A (en) * | 2018-11-27 | 2019-01-15 | 中国科学院北京综合研究中心 | A kind of processing system and processing method of incineration flue gas of household garbage |
| CN110935299A (en) * | 2019-12-13 | 2020-03-31 | 河北工业大学 | Method and device for decomposing dioxin in incineration flue gas by coupling catalysis of low-temperature plasma |
| CN115121593A (en) * | 2022-09-01 | 2022-09-30 | 杭州灰弘环保科技有限公司 | Harmless system and method for low-temperature treatment of household garbage incineration fly ash |
-
2017
- 2017-11-08 CN CN201721476361.9U patent/CN207734804U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200742A (en) * | 2018-11-27 | 2019-01-15 | 中国科学院北京综合研究中心 | A kind of processing system and processing method of incineration flue gas of household garbage |
| CN110935299A (en) * | 2019-12-13 | 2020-03-31 | 河北工业大学 | Method and device for decomposing dioxin in incineration flue gas by coupling catalysis of low-temperature plasma |
| CN115121593A (en) * | 2022-09-01 | 2022-09-30 | 杭州灰弘环保科技有限公司 | Harmless system and method for low-temperature treatment of household garbage incineration fly ash |
| CN115121593B (en) * | 2022-09-01 | 2022-11-29 | 杭州灰弘环保科技有限公司 | Harmless system and method for low-temperature treatment of household garbage incineration fly ash |
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