CN101632885B - Preparation method of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal - Google Patents
Preparation method of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal Download PDFInfo
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- CN101632885B CN101632885B CN2009101947722A CN200910194772A CN101632885B CN 101632885 B CN101632885 B CN 101632885B CN 2009101947722 A CN2009101947722 A CN 2009101947722A CN 200910194772 A CN200910194772 A CN 200910194772A CN 101632885 B CN101632885 B CN 101632885B
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Abstract
The invention relates to activated carbon non-woven filter cloth for coal-fired flue gas mercury removal and a preparation method thereof, wherein the preparation method comprises the following steps: making polytetrafluoroethylene fiber into non-woven material by systems of fiber feeding, fiber opening, fiber mixing, fiber fine-opening, cotton feeding, cotton levelling, cotton rough-combing, cotton fine-combing, cotton web folding, spunlacing, and the like; taking the non-woven material as basal cloth; carding viscose-based activated carbon fiber to a web-forming system by adopting an an opening and picking system, and putting it on the basal cloth; mixing into a web-forming system, a glue spraying system by adopting an activated carbon powder scattering system; covering the non-woven cloth layer, and then a heating and shaping system to finally obtain the finished product by rolling. The non-woven filter cloth has the advantages of high-temperature resistance, high strength, good air-permeability, simple and practical preparation method, especially very remarkable adsorption and desorption effects to heavy metal mercury, and is suitable for industrial production.
Description
Technical field
The invention belongs to the preparation field of non-woven filter cloth, particularly relate to a kind of preparation method of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal.
Background technology
Coal dust firing can bring serious pellet to pollute and heavy metal pollution when essential thermal source and electric power resource is provided.Coal-fired Hg pollutes more outstanding; Human health and environment there is obvious harm; Hg and compound thereof can pass through different approaches such as respiratory tract, skin and alimentary canal and invade human body, cause nerve to poison and the deep tissue pathology, and mercury toxicity have accumulation property; Often needed several years or just performance to some extent of more than ten years, so coal-fired mercury pollution is more and more paid attention to by people.Yet existing dedusting material is owing to the reason of material or treatment process; Effect is not ideal aspect heavy metal removing; What present most of deduster adopted is that active carbon sprays into technology, though this obvious technical effects, the operating cost that process is relevant therewith is higher; Do not have the filtering material in the good use cleaner, cause the low situation of efficiency of dust collection.
Summary of the invention
Technical problem to be solved by this invention provides a kind of preparation method of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal, and this non-woven filter cloth is high temperature resistant, intensity is high, aeration is good, particularly to the adsorbing and removing effect highly significant of heavy metal Hg; The preparation method is simple and practical, and cost is low, is suitable for suitability for industrialized production.
The preparation method of a kind of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal of the present invention comprises:
Polytetrafluoroethylene fibre is processed nonwoven cloth material through fiber feeding, shredding, mixing, smart shredding, the systems such as cotton, equal cotton, carded, combing, folded net, water thorn of feeding, as base cloth; Then with viscose-based active carbon fiber through the opening or cleaning system, the carding system places on the base cloth, and then through shedding the activated carbon powder system, is mixed into the net system, spraying colloid system covers nonwoven layer, again through the heating for fixing shape system, batches at last and obtains.
Described polytetrafluoroethylene fibre is short polytetrafluoroethylene fibre.
Described activated carbon powder carrier fibre is a viscose-based active carbon fiber.
Described being mixed into has a system that sheds activated carbon powder between the net system; And two are mixed into the net system accomplishes by the blender and the moulded head cooperation of correspondence, and it is only with doing at arrival end to the port of export air-flow adsorption operation to be provided successively to the nonwoven aspect on the guipure; Its air stream outlet speed controlling is at 2.6m/s～3.6m/s, and the length of operation bed should be between 1m～1.5m; Moulded head is that fiber evenly becomes net arrangement, and wherein activated carbon powder is wooden powder's active carbon, and particle diameter is 48um～71um, carbon content >=50%.
Described heating for fixing shape system comprises through hot pressing spreading, baking oven and hot repressing spreading process.
Described nonwoven layer through even absorption melt have the compound nonwoven cloth layer more evenly absorption melt the described active carbon layer of knot, and described active carbon layer infiltrates in the base cloth matrix and constitutes active carbon and merges knot; Described filtering material layer covers the nonwoven of being processed by polytetrafluoroethylene fibre again after handling through spraying colloid system.
The present invention compared with prior art; The present invention through nonwoven layer evenly absorption melt and have the active carbon layer that the activated carbon granule by floury structure constitutes, active carbon also penetrates into and constitutes active carbon by the part in the nonwoven layer matrix that is mixed and made into polytetrafluoroethylene fibre and merge knot.This fusion knot closely is fused into one with active carbon and nonwoven, has the hot synthetic type of being easy to, high temperature resistant, and characteristics such as good, the antiacid alkali sulphur of aeration are adding that viscose-based active carbon fiber is remarkable to the adsorption effect of pellet in the flue gas and heavy metal Hg.
Beneficial effect
(1) reasonable in design of the present invention and since polytetrafluoroethylene fibre have high temperature resistant, thin thickness; Aeration is good, and characteristics such as antiacid alkali sulphur are easy to thermal synthesis type; Make the intensity of this product with the electric conductivity of active carbon; Service life and antistatic effect all improve greatly, can effectively adsorb various industrial waste gases, and especially effect is remarkable aspect flue gas ash removal particularly removes pellet and the heavy metal Hg in the coal-fired flue-gas;
(2) preparation method of the present invention is simple and practical, and cost is low, is suitable for suitability for industrialized production.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1, and 1 represents nonwoven layer, and 2 represent activated carbon filter layer;
Fig. 2 is preparation technology's flow process of the embodiment of the invention 1;
Fig. 3 is the structural representation of the embodiment of the invention 2, and 1 represents nonwoven layer, and 2 represent activated carbon filter layer;
Fig. 4 is preparation technology's flow process of the embodiment of the invention 2.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Nonwoven and filtering material layer, its percentage by weight are 3: 1, and nonwoven contains even absorption and melts the active carbon layer that has the powdery granule formation.
Activated carbon non-woven filter cloth for coal-fired flue gas mercury removal is preparation technology comprise: will lack polytetrafluoroethylene fibre and process nonwoven through opening or cleaning system, carding system, water thorn system etc., as base cloth, then with viscose-based active carbon fiber through the opening or cleaning system; The carding system places on the base cloth, and then through shedding the activated carbon powder system, being mixed into the net system; Spraying colloid system; The nonwoven layer that covering is processed by short polytetrafluoroethylene fibre, and then deliver to the heating for fixing shape system, comprising rolling through the hot pressing roller; Oven for drying and hot repressing roller roll process, after batch and obtain.
Nonwoven and filtering material layer, its percentage by weight are 4: 1, and nonwoven contains even absorption and melts the active carbon layer that has the powdery granule formation.
Activated carbon non-woven filter cloth for coal-fired flue gas mercury removal is preparation technology comprise: will lack polytetrafluoroethylene fibre and process nonwoven through opening or cleaning system, carding system, water thorn system etc., as base cloth, then with viscose-based active carbon fiber through the opening or cleaning system; The carding system; Place on the base cloth, and then shed the activated carbon powder system through containing, be mixed into net system, spraying colloid system; And then deliver to the heating for fixing shape system; Comprising rolling through the hot pressing roller, oven for drying and hot repressing roller roll process, after batch and obtain.
Claims (4)
1. the preparation method of an activated carbon non-woven filter cloth for coal-fired flue gas mercury removal comprises:
Polytetrafluoroethylene fibre is processed nonwoven cloth material through fiber feeding, shredding, mixing, smart shredding, hello cotton, equal cotton, carded, combing, folded net, water thorn system, as base cloth; Then with viscose-based active carbon fiber through the opening or cleaning system, the carding system places on the base cloth, and then through shedding the activated carbon powder system, is mixed into the net system, spraying colloid system covers nonwoven layer, again through the heating for fixing shape system, batches at last and obtains.
2. the preparation method of a kind of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal according to claim 1 is characterized in that: described polytetrafluoroethylene fibre is short polytetrafluoroethylene fibre.
3. the preparation method of a kind of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal according to claim 1, it is characterized in that: described activated carbon powder carrier fibre is a viscose-based active carbon fiber.
4. the preparation method of a kind of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal according to claim 1 is characterized in that: described heating for fixing shape system comprises through hot pressing spreading, baking oven and hot repressing spreading process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101947722A CN101632885B (en) | 2009-08-28 | 2009-08-28 | Preparation method of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal |
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| CN2009101947722A CN101632885B (en) | 2009-08-28 | 2009-08-28 | Preparation method of activated carbon non-woven filter cloth for coal-fired flue gas mercury removal |
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| CN101632885A CN101632885A (en) | 2010-01-27 |
| CN101632885B true CN101632885B (en) | 2012-01-11 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890341B (en) * | 2010-07-30 | 2013-01-02 | 东华大学 | Carbon-doped fiber filter cloth for removing mercury in coal-fired flue gas and preparation method thereof |
| CN102225281A (en) * | 2011-03-31 | 2011-10-26 | 厦门建霖工业有限公司 | Multifunctional three-layer type air strainer |
| CN104043287B (en) * | 2013-03-13 | 2016-03-16 | 崧泉企业股份有限公司 | Active carbon composite filter element manufacture method |
| CN105084572B (en) * | 2015-09-14 | 2018-02-13 | 广东正业科技股份有限公司 | A kind of activated carbon fibrous composite and preparation method thereof and a kind of active carbon fabric composite filter element |
| CN105442186B (en) * | 2015-12-09 | 2017-10-13 | 广东斯乐普环保技术股份有限公司 | The manufacture method of high efficiency active carbon non-woven cloth |
| CN106863868A (en) * | 2017-03-01 | 2017-06-20 | 吉林省华纺静电材料科技有限公司 | A kind of production technology of hot melting non-weaving cloth electrostatic fibrous filter web |
| CN110013726B (en) * | 2019-04-30 | 2021-09-21 | 东华大学 | Magnetic composite non-woven filter bag for removing magnetic fine particles and preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348993A2 (en) * | 1988-06-30 | 1990-01-03 | Osaka Gas Co., Ltd. | Composite non-woven fabric material, method of its production and its use |
| CN2186150Y (en) * | 1992-09-14 | 1994-12-28 | 北京市塑料十三厂 | Non-spining cloth-active carbon compound laminated products |
| CN2703770Y (en) * | 2004-04-21 | 2005-06-08 | 郭伟文 | Active carbon composite cloth |
| CN201258425Y (en) * | 2008-09-11 | 2009-06-17 | 吴龙涛 | Novel active carbon nonwoven fabric |
| CN101514510A (en) * | 2009-03-16 | 2009-08-26 | 霍伟志 | Activated carbon fibrous composite and preparation method thereof |
-
2009
- 2009-08-28 CN CN2009101947722A patent/CN101632885B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348993A2 (en) * | 1988-06-30 | 1990-01-03 | Osaka Gas Co., Ltd. | Composite non-woven fabric material, method of its production and its use |
| CN2186150Y (en) * | 1992-09-14 | 1994-12-28 | 北京市塑料十三厂 | Non-spining cloth-active carbon compound laminated products |
| CN2703770Y (en) * | 2004-04-21 | 2005-06-08 | 郭伟文 | Active carbon composite cloth |
| CN201258425Y (en) * | 2008-09-11 | 2009-06-17 | 吴龙涛 | Novel active carbon nonwoven fabric |
| CN101514510A (en) * | 2009-03-16 | 2009-08-26 | 霍伟志 | Activated carbon fibrous composite and preparation method thereof |
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