CN207928866U - A kind of composite filtering material for biomass incinerator flue gas ash removal - Google Patents
A kind of composite filtering material for biomass incinerator flue gas ash removal Download PDFInfo
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- CN207928866U CN207928866U CN201721837173.4U CN201721837173U CN207928866U CN 207928866 U CN207928866 U CN 207928866U CN 201721837173 U CN201721837173 U CN 201721837173U CN 207928866 U CN207928866 U CN 207928866U
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- China
- Prior art keywords
- polyetherimide
- nanowire
- tube film
- nano
- stratum reticulare
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- 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.)
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Abstract
A kind of composite filtering material for biomass incinerator flue gas ash removal, it is characterised in that：Including polyimide nano web layer, polyetherimide Nanowire stratum reticulare, carbon nano-tube film layer, polyetherimide Nanowire stratum reticulare, carbon nano-tube film layer, polyetherimide Nanowire stratum reticulare, carbon nano-tube film layer, polyetherimide Nanowire stratum reticulare, the polyimide nano web layer being sequentially laminated.A diameter of 280nm of polyimide nano-fiber in the polyimide nano web layer.A diameter of 550nm of polyetherimide nanofiber in the polyetherimide Nanowire stratum reticulare.A diameter of 30nm of carbon nanotube in the carbon nano-tube film layer.The utility model is high to the filter efficiency of finely ground particles, can improve the treatment effect of denitration desulfurization.
Description
Technical field
The utility model belongs to environmental technology field, specially a kind of composite filter for biomass incinerator flue gas ash removal
Material.
Background technology
The harmful substances such as flue dust, sulfur dioxide, nitrogen oxides contained by biomass incinerator flue gas be cause atmosphere pollution,
The main contributor of acid rain and greenhouse effects.Therefore, it is very urgent to carry out desulphurization denitration to biomass incinerator flue gas in China
Task.
Flue gas will be pre-processed first before desulphurization denitration, however, current flue gas is pre-processed to finely ground particles
Filter efficiency is low, so that having influenced the denitration desulfurization effect in later stage.
Invention content
The utility model is right in view of the above-mentioned problems, a kind of composite filtering material for biomass incinerator flue gas ash removal of offer
The filter efficiency of finely ground particles is high, can improve the treatment effect of denitration desulfurization.
The technical solution of the utility model is：A kind of composite filtering material for biomass incinerator flue gas ash removal, feature
It is：Including the polyimide nano web layer, polyetherimide Nanowire stratum reticulare, carbon nano-tube film layer, poly- being sequentially laminated
Etherimide Nanowire stratum reticulare, carbon nano-tube film layer, polyetherimide Nanowire stratum reticulare, carbon nano-tube film layer, polyethers acyl
Imine nanometer web layer, polyimide nano web layer.
A diameter of 280nm of polyimide nano-fiber in the polyimide nano web layer.
A diameter of 550nm of polyetherimide nanofiber in the polyetherimide Nanowire stratum reticulare.
A diameter of 30nm of carbon nanotube in the carbon nano-tube film layer.
The utility model has the beneficial effects that：The utility model provides a kind of answering for biomass incinerator flue gas ash removal
Filtrate is closed, it is high to the filter efficiency of finely ground particles, the treatment effect of denitration desulfurization can be improved.
Compared with prior art, the utility model have the following advantages that, economic effect：
(1), high temperature resistant：Continuous work temperature is 230 DEG C~260 DEG C, and moment operating temperature is 280 DEG C.
(2), the specific surface area of polyimide nano fibre web is relatively large, this characteristic helps to improve suspended particulate in air
In the deposition probability of polyimide nano web surface and then polyimide nano fibre web filtering material can be improved to small in object
The filter efficiency of grain object.It is fallen in identical filtration pressure, compared with traditional micron order scale fibrous nonwoven material, polyamides is sub-
Amine nanowebs air filting material is more obvious to directly interception effect and the inertial impaction effect of dust particale object, filtering effect
Rate higher.
(3), carbon nano-tube film has minimum diameter and higher specific surface area, the direct interception to dust particale object
Effect and inertial impaction effect are more obvious, improve filter efficiency.
(4), by by the progress synchronous with the electrostatic spinning of polyetherimide nanowebs of the winding of carbon nano-tube film, inciting somebody to action
Polyetherimide nanowebs spin carbon nano-tube film between layers, make polyetherimide nanowebs and continuous carbon
Nano-tube film is compound, improves filter efficiency.
(5), carbon nano-tube film is all bonded by a strata etherimide nanowebs between layers, such
Bonding mode can be such that the structure of entire filtrate more stablizes.The tensile strength of entire material is greatly improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In Fig. 1,1. polyimide nano web layers, 2. polyetherimide Nanowire stratum reticulares, 3. carbon nano-tube film layers.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1, the utility model is a kind of composite filtering material for biomass incinerator flue gas ash removal, feature exists
In：Including the polyimide nano web layer 1, polyetherimide Nanowire stratum reticulare 2, carbon nano-tube film layer 3, poly- being sequentially laminated
Etherimide Nanowire stratum reticulare 2, polyetherimide Nanowire stratum reticulare 2, carbon nano-tube film layer 3, gathers carbon nano-tube film layer 3
Etherimide Nanowire stratum reticulare 2, polyimide nano web layer 1.
A diameter of 280nm of polyimide nano-fiber in the polyimide nano web layer 1.
A diameter of 550nm of polyetherimide nanofiber in the polyetherimide Nanowire stratum reticulare 2.
A diameter of 30nm of carbon nanotube in the carbon nano-tube film layer 3.
The utility model is obtained by following process：
(1) first one layer of aluminium foil of smooth cladding on collecting drum before electrostatic spinning, passes through method of electrostatic spinning on aluminium foil
Spinning fibre uniform diameter and the polyamic acid nanowebs of aneroid pearl.Later, aluminium foil and polyamic acid nanowebs is careful
Ground is taken down from collecting drum, cannot be made to polyamic acid nanowebs during removing polyamic acid nanowebs and aluminium foil
At any destruction.Then progress gradient increased temperature processing in high temperature oven is put it into.It is residual that removal in 6 hours is dried first at 80 DEG C
Solvent is stayed, 100 DEG C, 200 DEG C, 300 DEG C and 350 DEG C each 30 minutes gradient increased temperatures processing is then carried out, makes polyamic acid nanometer
Fibre web is converted to polyimide nano fibre web after gradient thermal cyclization reaction.
(2) polyetherimide nanowebs are spinned again by method of electrostatic spinning.
(3) polyimide nano fibre web is spinned to being surrounded by the collecting drum of aluminium foil, then by polyetherimide Nanowire
Net spinning is on polyimide nano fibre web.
(4) next, carbon nano-tube film is continuously wound up on polyetherimide nanowebs.
(5) next, in addition a strata etherimide nanowebs are spinned on carbon nano-tube film, by by carbon
The winding of nano-tube film is synchronous with the electrostatic spinning of polyetherimide nanowebs to carry out, and polyetherimide nanowebs are spun
Carbon nano-tube film between layers, carbon nano-tube film is separated in layers by polyetherimide nanowebs, and outermost
Layer is covered by polyimide nano fibre web.
(6) finally, between the composite filtering material prepared on collecting drum being compressed on two pieces of parallel metal sheets, pressure 1kPa,
Hot-pressing processing 30min at 420 DEG C.In the process, polyetherimide nanowebs are softened melting, and by polyimide nano
It is firmly bonded together, has been made for giving birth between fibre web and carbon nano-tube film, carbon nano-tube film and carbon nano-tube film
The composite filtering material of substance incinerator smoke dedusting.
The operation principle of the utility model：
The specific surface area of polyimide nano fibre web is relatively large, this characteristic helps to improve suspended particulate substance in air and exists
The deposition probability of polyimide nano web surface, and then polyimide nano fibre web filtering material can be improved to finely ground particles
Filter efficiency.It is fallen in identical filtration pressure, compared with traditional micron order scale fibrous nonwoven material, polyimides is received
Rice fibre web air filting material is more obvious to directly interception effect and the inertial impaction effect of dust particale object, and filter efficiency is more
It is high.
Polyetherimide be a kind of heat-resistant polymer (glass transition temperature is 215 DEG C, melting temperature is 349 DEG C~
427 DEG C), but it can be softened melting, serve as a kind of fiber binder polyimide nano fibre web and carbon nanotube is thin
Film, carbon nano-tube film and carbon nano-tube film are bonded together.
Carbon nano-tube film has minimum diameter and higher specific surface area, and effect is directly intercepted to dust particale object
It is more obvious with inertial impaction effect, improve filter efficiency.
By by the winding of carbon nano-tube film it is synchronous with the electrostatic spinning of polyetherimide nanowebs carry out, by polyethers
Acid imide nanowebs spin carbon nano-tube film between layers, make polyetherimide nanowebs and continuous carbon nanometer
Pipe Film laminated, improves filter efficiency.
Carbon nano-tube film is all bonded by a strata etherimide nanowebs between layers, such bonding
Mode can be such that the structure of entire filtrate more stablizes.The tensile strength of entire material is greatly improved.
Claims (4)
1. a kind of composite filtering material for biomass incinerator flue gas ash removal, it is characterised in that：Polyamides including being sequentially laminated is sub-
Amine Nanowire stratum reticulare (1), polyetherimide Nanowire stratum reticulare (2), carbon nano-tube film layer (3), polyetherimide nanowebs
Layer (2), carbon nano-tube film layer (3), polyetherimide Nanowire stratum reticulare (2), carbon nano-tube film layer (3), polyetherimide
Nanowire stratum reticulare (2), polyimide nano web layer (1).
2. a kind of composite filtering material for biomass incinerator flue gas ash removal according to claim 1, it is characterised in that：Institute
A diameter of 280nm of polyimide nano-fiber in the polyimide nano web layer (1) stated.
3. a kind of composite filtering material for biomass incinerator flue gas ash removal according to claim 1, it is characterised in that：Institute
A diameter of 550nm of polyetherimide nanofiber in the polyetherimide Nanowire stratum reticulare (2) stated.
4. a kind of composite filtering material for biomass incinerator flue gas ash removal according to claim 1, it is characterised in that：Institute
A diameter of 30nm of carbon nanotube in the carbon nano-tube film layer (3) stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721837173.4U CN207928866U (en) | 2017-12-25 | 2017-12-25 | A kind of composite filtering material for biomass incinerator flue gas ash removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721837173.4U CN207928866U (en) | 2017-12-25 | 2017-12-25 | A kind of composite filtering material for biomass incinerator flue gas ash removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207928866U true CN207928866U (en) | 2018-10-02 |
Family
ID=63647137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721837173.4U Expired - Fee Related CN207928866U (en) | 2017-12-25 | 2017-12-25 | A kind of composite filtering material for biomass incinerator flue gas ash removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207928866U (en) |
-
2017
- 2017-12-25 CN CN201721837173.4U patent/CN207928866U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20191225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |