CN110975434A - Industrial dedusting and low-temperature denitration filtering material and preparation method thereof - Google Patents
Industrial dedusting and low-temperature denitration filtering material and preparation method thereof Download PDFInfo
- Publication number
- CN110975434A CN110975434A CN201911337608.2A CN201911337608A CN110975434A CN 110975434 A CN110975434 A CN 110975434A CN 201911337608 A CN201911337608 A CN 201911337608A CN 110975434 A CN110975434 A CN 110975434A
- Authority
- CN
- China
- Prior art keywords
- parts
- glass fiber
- aqueous solution
- acid aqueous
- micro glass
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to the technical field of industrial filter materials, in particular to an industrial dedusting and low-temperature denitration filter material which comprises the following raw materials in parts by weight: 3-6 parts of zeolite, 4-7 parts of diatomite, 3-6 parts of sepiolite, 15-20 parts of expanded microporous polytetrafluoroethylene, 8-12 parts of catalyst, 4-7 parts of sodium silicate, 5-8 parts of calcium lignosulfonate, 10-15 parts of micro glass fiber, 10-20 parts of binder, 2-4 parts of silane coupling agent, 1-3 parts of polyacrylate and 4-7 parts of inorganic acid solution. The invention also provides a preparation method of the industrial dedusting and low-temperature denitration filtering material. According to the invention, the mixed powder of the preliminarily molded filtering material with high quality and high efficiency can be manufactured, and then the mixed powder and the micro glass fiber are stably and firmly bonded together through the binder, so that the inherent dedusting and denitration performances of the manufactured filtering material can be improved, and the filtering material has strong stability and longer service life.
Description
Technical Field
The invention relates to the technical field of industrial filter materials, in particular to an industrial dedusting and low-temperature denitration filter material and a preparation method thereof.
Background
With the stricter environmental regulations in China, the control of the emission of nitrogen oxide pollutants has a very important significance on the sustainable development of national economy in China, and the control of NOX is the key point of the work in the next 5 years. Industrial exhaust gases, particularly waste incineration and coal-fired power plants, contain a large amount of Nitrogen Oxides (NOX) accounting for 42% of total nitrogen oxide emissions, and once entering the atmosphere, these gases become the main air pollution source and photochemical pollution source. The technologies for removing NOX, which are widely used in industry at present, include low NOX combustion technology, non-catalytic selective reduction (SNCR), Selective Catalytic Reduction (SCR), and wet denitration. Among the denitrification technologies, SCR is the most mature technology with the highest denitrification efficiency. The method is a method for selectively reducing NOx into N2 and H2O by using ammonia or other reducing agents under the action of a specific catalyst. Due to mature technology and high denitration rate, the method is being widely applied.
On the aspect of removing dust among the prior art, most all remove dust through bag dust collecting equipment to the dust that industrial production caused and handle, but the dust removal effect of the filtering material who uses among the present bag dust collecting equipment is relatively poor, and stability is relatively poor moreover, can lead to life's shortening easily, can't carry out denitration treatment to the dust effectively moreover, can bring not little pollution for the environment.
Disclosure of Invention
The invention aims to solve the defects that the filtering material in the existing dust removing equipment in the prior art has poor dust removing effect, can not effectively perform denitration treatment on dust and can bring small pollution to the environment, and provides an industrial dust removing and low-temperature denitration filtering material and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the industrial dedusting and low-temperature denitration filtering material is designed, and comprises the following raw materials in parts by weight: 3-6 parts of zeolite, 4-7 parts of diatomite, 3-6 parts of sepiolite, 15-20 parts of expanded microporous polytetrafluoroethylene, 8-12 parts of catalyst, 4-7 parts of sodium silicate, 5-8 parts of calcium lignosulfonate, 10-15 parts of micro glass fiber, 10-20 parts of binder, 2-4 parts of silane coupling agent, 1-3 parts of polyacrylate and 4-7 parts of inorganic acid solution.
Preferably, the catalyst is selected from any one of Mn-based, Ce-based, Mn-Ce/TiO2 composite catalysts or catalyst nanoparticles with noble metals of Pt, Rh and Pd having low-temperature activity.
Preferably, the binder comprises styrene/acrylic acid copolymer emulsion, acrylic acid polymer resin and emulsion thereof, vinyl acetate emulsion, epoxy resin and emulsion thereof, and phenolic resin and emulsion thereof, and the optimized weight ratio of the styrene/acrylic acid copolymer emulsion, the acrylic acid polymer resin and emulsion thereof, the vinyl acetate emulsion, the epoxy resin and emulsion thereof, and the phenolic resin and emulsion thereof is 1: 1.5: 1.2:1.3:0.9.
Preferably, the inorganic acid solution comprises sulfuric acid aqueous solution, hydrochloric acid aqueous solution, nitric acid aqueous solution, phosphoric acid aqueous solution, citric acid aqueous solution and acetic acid aqueous solution, and the optimized weight ratio of the sulfuric acid aqueous solution, the hydrochloric acid aqueous solution, the nitric acid aqueous solution, the phosphoric acid aqueous solution, the citric acid aqueous solution and the acetic acid aqueous solution is 0.8: 1.4: 1.1:0.9:1.5:1.2.
Preferably, the weight ratio of the zeolite, the diatomite and the sepiolite is 4-5: 5-6: 4-5.
Preferably, the weight ratio of the sodium silicate to the calcium lignosulfonate to the micro glass fiber is 5-6: 6-7: 11-14.
Preferably, the micro glass fiber is a glass fiber chopped strand, and the diameter of the micro glass fiber is 0.2-18 μm.
The invention also provides a preparation method of the industrial dedusting and low-temperature denitration filtering material, which comprises the following steps:
s1), obtaining the micro glass fiber with the formula amount, adding the micro glass fiber into the inorganic acid solution, and fully stirring the mixed solution to fully and uniformly disperse the micro glass fiber in the inorganic acid solution to prepare a mixed suspension;
s2), obtaining zeolite, diatomite and sepiolite according to the weight ratio of the formula, adding the three raw materials into 1.0-2.0mol/L hydrochloric acid solution, fully stirring the mixed solution, and then carrying out water bath heating treatment on the mixed solution, wherein the temperature of the water bath is 52-58 ℃, and the time of the water bath is 25-30 hours;
s3), after the water bath is finished, washing to be neutral, filtering, drying, calcining for 3-5h at 455-475 ℃, naturally cooling, and crushing and sieving with a 300-fold 400-mesh sieve for later use;
s4), diluting the mixed suspension prepared in the step S1) to ensure that the concentration of the mixed suspension is 0.6-0.8%, then filtering the mixed suspension, drying, calcining at 400-425 ℃ for 2-4h, naturally cooling, crushing and sieving with a 300-400 mesh sieve for later use;
s5), adding the powder prepared in the step S3) and the powder prepared in the step S4) into a stirring device, and fully and uniformly mixing to obtain the mixed powder of the preliminarily formed filter material;
s6), adding the mixed powder prepared in the step S5) into a hot pressing device for hot pressing, wherein the hot pressing temperature is 270-350 ℃;
s7), firstly, a waterproof agent is applied to one side of the micro glass fiber in a spraying mode, then, the micro glass fiber is dried for 1-3 minutes at 185-200 ℃, then, a binder with the formula amount is obtained, the hot-pressed mixed powder is respectively bonded to the upper surface and the lower surface of the micro glass fiber through the binder, and finally, the micro glass fiber is placed at 185-200 ℃ and solidified for 2-5 minutes, so that the filter material is obtained.
The industrial dedusting and low-temperature denitration filter material and the preparation method thereof have the beneficial effects that: the industrial dedusting and low-temperature denitration filtering material and the preparation method thereof can firstly manufacture the mixed powder of the filtering material which is preliminarily molded and has high quality and high efficiency, and then the mixed powder and the micro glass fiber are stably and firmly bonded together through the binder, so that the inherent dedusting and denitration performance of the manufactured filtering material can be improved, and the filtering material has stronger stability and longer service life, and can be suitable for modern industrialized production.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1
The industrial dedusting and low-temperature denitration filtering material is characterized by comprising the following raw materials in parts by weight: 3 parts of zeolite, 4 parts of diatomite, 3 parts of sepiolite, 15 parts of expanded microporous polytetrafluoroethylene, 8 parts of catalyst, 4 parts of sodium silicate, 5 parts of calcium lignosulfonate, 10 parts of micro glass fiber, 10 parts of binder, 2 parts of silane coupling agent, 1 part of polyacrylate and 4 parts of inorganic acid solution.
The catalyst is selected from any one of Mn-based, Ce-based, Mn-Ce/TiO2 composite catalysts or catalyst nanoparticles with noble metals of Pt, Rh and Pd having low-temperature activity.
The adhesive comprises styrene/acrylic copolymer emulsion, acrylic polymer resin and emulsion thereof, vinyl acetate emulsion, epoxy resin and emulsion thereof, phenolic resin and emulsion thereof, and the optimized weight ratio of the styrene/acrylic copolymer emulsion, the acrylic polymer resin and emulsion thereof, the vinyl acetate emulsion, the epoxy resin and emulsion thereof, the phenolic resin and emulsion thereof is 1: 1.5: 1.2:1.3:0.9.
The inorganic acid solution comprises a sulfuric acid aqueous solution, a hydrochloric acid aqueous solution, a nitric acid aqueous solution, a phosphoric acid aqueous solution, a citric acid aqueous solution and an acetic acid aqueous solution, and the optimized weight ratio of the sulfuric acid aqueous solution to the hydrochloric acid aqueous solution to the nitric acid aqueous solution to the phosphoric acid aqueous solution to the citric acid aqueous solution to the acetic acid aqueous solution is 0.8: 1.4: 1.1:0.9:1.5:1.2.
The weight ratio of the zeolite to the diatomite to the sepiolite is 4: 5: 4.
the weight ratio of the sodium silicate to the calcium lignosulfonate to the micro glass fiber is 5: 6: 11.
the micro glass fiber is a glass fiber short filament, and the diameter of the micro glass fiber is 0.2 μm.
The invention also provides a preparation method of the industrial dedusting and low-temperature denitration filtering material, which comprises the following steps:
s1), obtaining the micro glass fiber with the formula amount, adding the micro glass fiber into the inorganic acid solution, and fully stirring the mixed solution to fully and uniformly disperse the micro glass fiber in the inorganic acid solution to prepare a mixed suspension;
s2), obtaining zeolite, diatomite and sepiolite according to the weight ratio of the formula, adding the three raw materials into a 1.0mol/L hydrochloric acid solution, fully stirring the mixed solution, and carrying out water bath heating treatment on the mixed solution, wherein the water bath temperature is 52 ℃, and the water bath time is 25 hours;
s3), after water bath, washing to be neutral, filtering, drying, calcining at 455 ℃ for 3h, naturally cooling, crushing and sieving with a 300-mesh sieve for later use;
s4), diluting the mixed suspension prepared in the step S1) to make the concentration of the mixed suspension be 0.6%, then filtering the mixed suspension, drying, calcining at 400 ℃ for 2h, naturally cooling, crushing and sieving by a 300-mesh sieve for later use;
s5), adding the powder prepared in the step S3) and the powder prepared in the step S4) into a stirring device, and fully and uniformly mixing to obtain the mixed powder of the preliminarily formed filter material;
s6), adding the mixed powder prepared in the step S5) into a hot pressing device for hot pressing, wherein the hot pressing temperature is 270 ℃;
s7), firstly, a waterproof agent is applied to one side of the micro glass fiber in a spraying mode, then, the micro glass fiber is dried for 1 minute at 185 ℃, then, a binder with the formula amount is obtained, the hot-pressed mixed powder is respectively bonded to the upper surface and the lower surface of the micro glass fiber through the binder, and finally, the micro glass fiber is placed at 185 ℃ and solidified for 2 minutes, so that the filter material is obtained.
Example 2
The industrial dedusting and low-temperature denitration filtering material is characterized by comprising the following raw materials in parts by weight: 6 parts of zeolite, 7 parts of diatomite, 6 parts of sepiolite, 20 parts of expanded microporous polytetrafluoroethylene, 12 parts of catalyst, 7 parts of sodium silicate, 8 parts of calcium lignosulfonate, 15 parts of micro glass fiber, 20 parts of binder, 4 parts of silane coupling agent, 3 parts of polyacrylate and 7 parts of inorganic acid solution.
The catalyst is selected from any one of Mn-based, Ce-based, Mn-Ce/TiO2 composite catalysts or catalyst nanoparticles with noble metals of Pt, Rh and Pd having low-temperature activity.
The adhesive comprises styrene/acrylic copolymer emulsion, acrylic polymer resin and emulsion thereof, vinyl acetate emulsion, epoxy resin and emulsion thereof, phenolic resin and emulsion thereof, and the optimized weight ratio of the styrene/acrylic copolymer emulsion, the acrylic polymer resin and emulsion thereof, the vinyl acetate emulsion, the epoxy resin and emulsion thereof, the phenolic resin and emulsion thereof is 1: 1.5: 1.2:1.3:0.9.
The inorganic acid solution comprises a sulfuric acid aqueous solution, a hydrochloric acid aqueous solution, a nitric acid aqueous solution, a phosphoric acid aqueous solution, a citric acid aqueous solution and an acetic acid aqueous solution, and the optimized weight ratio of the sulfuric acid aqueous solution to the hydrochloric acid aqueous solution to the nitric acid aqueous solution to the phosphoric acid aqueous solution to the citric acid aqueous solution to the acetic acid aqueous solution is 0.8: 1.4: 1.1:0.9:1.5:1.2.
The weight ratio of the zeolite to the diatomite to the sepiolite is 5: 6: 5.
the weight ratio of the sodium silicate to the calcium lignosulfonate to the micro glass fiber is 6: 7: 14.
the micro glass fiber is a glass fiber short filament, and the diameter of the micro glass fiber is 18 μm.
The invention also provides a preparation method of the industrial dedusting and low-temperature denitration filtering material, which comprises the following steps:
s1), obtaining the micro glass fiber with the formula amount, adding the micro glass fiber into the inorganic acid solution, and fully stirring the mixed solution to fully and uniformly disperse the micro glass fiber in the inorganic acid solution to prepare a mixed suspension;
s2), obtaining zeolite, diatomite and sepiolite according to the weight ratio of the formula, adding the three raw materials into a 2.0mol/L hydrochloric acid solution, fully stirring the mixed solution, and carrying out water bath heating treatment on the mixed solution, wherein the temperature of the water bath is 58 ℃, and the time of the water bath is 30 hours;
s3), after water bath, washing to be neutral, filtering, drying, calcining at 475 ℃ for 5h, naturally cooling, crushing and sieving with a 400-mesh sieve for later use;
s4), diluting the mixed suspension prepared in the step S1) to make the concentration of the mixed suspension be 0.8%, then filtering the mixed suspension, drying, calcining at 425 ℃ for 4h, naturally cooling, and crushing and sieving by a 400-mesh sieve for later use;
s5), adding the powder prepared in the step S3) and the powder prepared in the step S4) into a stirring device, and fully and uniformly mixing to obtain the mixed powder of the preliminarily formed filter material;
s6), adding the mixed powder prepared in the step S5) into a hot pressing device for hot pressing, wherein the hot pressing temperature is 350 ℃;
s7), firstly, a waterproof agent is applied to one side of the micro glass fiber in a spraying mode, then, the micro glass fiber is dried for 3 minutes at the temperature of 200 ℃, then, a binder with the formula amount is obtained, the hot-pressed mixed powder is respectively bonded to the upper surface and the lower surface of the micro glass fiber through the binder, and finally, the micro glass fiber is placed at the temperature of 200 ℃ and solidified for 5 minutes, so that the filter material is obtained.
Example 3
The industrial dedusting and low-temperature denitration filtering material is characterized by comprising the following raw materials in parts by weight: 4 parts of zeolite, 5 parts of diatomite, 5 parts of sepiolite, 18 parts of expanded microporous polytetrafluoroethylene, 10 parts of catalyst, 6 parts of sodium silicate, 6 parts of calcium lignosulfonate, 13 parts of micro glass fiber, 15 parts of binder, 3 parts of silane coupling agent, 2 parts of polyacrylate and 5 parts of inorganic acid solution.
The catalyst is selected from any one of Mn-based, Ce-based, Mn-Ce/TiO2 composite catalysts or catalyst nanoparticles with noble metals of Pt, Rh and Pd having low-temperature activity.
The adhesive comprises styrene/acrylic copolymer emulsion, acrylic polymer resin and emulsion thereof, vinyl acetate emulsion, epoxy resin and emulsion thereof, phenolic resin and emulsion thereof, and the optimized weight ratio of the styrene/acrylic copolymer emulsion, the acrylic polymer resin and emulsion thereof, the vinyl acetate emulsion, the epoxy resin and emulsion thereof, the phenolic resin and emulsion thereof is 1: 1.5: 1.2:1.3:0.9.
The inorganic acid solution comprises a sulfuric acid aqueous solution, a hydrochloric acid aqueous solution, a nitric acid aqueous solution, a phosphoric acid aqueous solution, a citric acid aqueous solution and an acetic acid aqueous solution, and the optimized weight ratio of the sulfuric acid aqueous solution to the hydrochloric acid aqueous solution to the nitric acid aqueous solution to the phosphoric acid aqueous solution to the citric acid aqueous solution to the acetic acid aqueous solution is 0.8: 1.4: 1.1:0.9:1.5:1.2.
The weight ratio of the zeolite to the diatomite to the sepiolite is 4.5: 5.6: 4.5.
the weight ratio of the sodium silicate to the calcium lignosulfonate to the micro glass fiber is 5.6: 6.7: 12.
the micro glass fiber is a glass fiber short filament, and the diameter of the micro glass fiber is 12 μm.
The invention also provides a preparation method of the industrial dedusting and low-temperature denitration filtering material, which comprises the following steps:
s1), obtaining the micro glass fiber with the formula amount, adding the micro glass fiber into the inorganic acid solution, and fully stirring the mixed solution to fully and uniformly disperse the micro glass fiber in the inorganic acid solution to prepare a mixed suspension;
s2), obtaining zeolite, diatomite and sepiolite according to the weight ratio of the formula, adding the three raw materials into a 1.5mol/L hydrochloric acid solution, fully stirring the mixed solution, and carrying out water bath heating treatment on the mixed solution, wherein the temperature of the water bath is 53 ℃, and the time of the water bath is 27 hours;
s3), after water bath, washing to be neutral, filtering, drying, calcining at 460 ℃ for 4h, naturally cooling, crushing and sieving with a 350-mesh sieve for later use;
s4), diluting the mixed suspension prepared in the step S1) to make the concentration of the mixed suspension be 0.7%, filtering the mixed suspension, drying, calcining at 410 ℃ for 3h, naturally cooling, crushing and sieving with a 350-mesh sieve for later use;
s5), adding the powder prepared in the step S3) and the powder prepared in the step S4) into a stirring device, and fully and uniformly mixing to obtain the mixed powder of the preliminarily formed filter material;
s6), adding the mixed powder prepared in the step S5) into a hot pressing device for hot pressing, wherein the hot pressing temperature is 300 ℃;
s7), firstly, a waterproof agent is applied to one side of the micro glass fiber in a spraying mode, then, the micro glass fiber is dried for 2 minutes at the temperature of 195 ℃, then, a binder with the formula amount is obtained, the hot-pressed mixed powder is respectively bonded to the upper surface and the lower surface of the micro glass fiber through the binder, and finally, the micro glass fiber is placed at the temperature of 195 ℃ and solidified for 3 minutes, so that the filter material is obtained.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The industrial dedusting and low-temperature denitration filtering material is characterized by comprising the following raw materials in parts by weight: 3-6 parts of zeolite, 4-7 parts of diatomite, 3-6 parts of sepiolite, 15-20 parts of expanded microporous polytetrafluoroethylene, 8-12 parts of catalyst, 4-7 parts of sodium silicate, 5-8 parts of calcium lignosulfonate, 10-15 parts of micro glass fiber, 10-20 parts of binder, 2-4 parts of silane coupling agent, 1-3 parts of polyacrylate and 4-7 parts of inorganic acid solution.
2. The industrial dedusting and low temperature denitration filter material of claim 1, wherein the catalyst is selected from Mn-based, Ce-based, Mn-Ce/TiO2 composite catalyst or any one of catalyst nanoparticles with noble metals of Pt, Rh and Pd having low temperature activity.
3. The industrial dedusting and low temperature denitration filter material of claim 1, wherein the binder comprises styrene/acrylic acid copolymer emulsion, acrylic acid polymer resin and emulsion thereof, vinyl acetate emulsion, epoxy resin and emulsion thereof, and phenolic resin and emulsion thereof, and the optimized weight ratio of the styrene/acrylic acid copolymer emulsion, the acrylic acid polymer resin and emulsion thereof, the vinyl acetate emulsion, the epoxy resin and emulsion thereof, and the phenolic resin and emulsion thereof is 1: 1.5: 1.2:1.3:0.9.
4. The industrial dust removal and low-temperature denitration filter material of claim 1, wherein the inorganic acid solution comprises sulfuric acid aqueous solution, hydrochloric acid aqueous solution, nitric acid aqueous solution, phosphoric acid aqueous solution, citric acid aqueous solution and acetic acid aqueous solution, and the optimized weight ratio of the sulfuric acid aqueous solution, the hydrochloric acid aqueous solution, the nitric acid aqueous solution, the phosphoric acid aqueous solution, the citric acid aqueous solution and the acetic acid aqueous solution is 0.8: 1.4: 1.1:0.9:1.5:1.2.
5. The industrial dedusting and low-temperature denitration filter material as set forth in claim 1, wherein the weight ratio of zeolite, diatomite and sepiolite is 4-5: 5-6: 4-5.
6. The industrial dedusting and low-temperature denitration filter material as claimed in claim 1, wherein the weight ratio of the sodium silicate, the calcium lignosulfonate and the micro glass fiber is 5-6: 6-7: 11-14.
7. The industrial dedusting and low-temperature denitration filter material as set forth in claim 1, wherein the micro glass fiber is a glass fiber chopped strand, and the diameter of the micro glass fiber is 0.2-18 μm.
8. The method for preparing the industrial dedusting and low-temperature denitration filter material as set forth in any one of claims 1 to 7, is characterized by comprising the following steps:
s1), obtaining the micro glass fiber with the formula amount, adding the micro glass fiber into the inorganic acid solution, and fully stirring the mixed solution to fully and uniformly disperse the micro glass fiber in the inorganic acid solution to prepare a mixed suspension;
s2), obtaining zeolite, diatomite and sepiolite according to the weight ratio of the formula, adding the three raw materials into 1.0-2.0mol/L hydrochloric acid solution, fully stirring the mixed solution, and then carrying out water bath heating treatment on the mixed solution, wherein the temperature of the water bath is 52-58 ℃, and the time of the water bath is 25-30 hours;
s3), after the water bath is finished, washing to be neutral, filtering, drying, calcining for 3-5h at 455-475 ℃, naturally cooling, and crushing and sieving with a 300-fold 400-mesh sieve for later use;
s4), diluting the mixed suspension prepared in the step S1) to ensure that the concentration of the mixed suspension is 0.6-0.8%, then filtering the mixed suspension, drying, calcining at 400-425 ℃ for 2-4h, naturally cooling, crushing and sieving with a 300-400 mesh sieve for later use;
s5), adding the powder prepared in the step S3) and the powder prepared in the step S4) into a stirring device, and fully and uniformly mixing to obtain the mixed powder of the preliminarily formed filter material;
s6), adding the mixed powder prepared in the step S5) into a hot pressing device for hot pressing, wherein the hot pressing temperature is 270-350 ℃;
s7), firstly, a waterproof agent is applied to one side of the micro glass fiber in a spraying mode, then, the micro glass fiber is dried for 1-3 minutes at 185-200 ℃, then, a binder with the formula amount is obtained, the hot-pressed mixed powder is respectively bonded to the upper surface and the lower surface of the micro glass fiber through the binder, and finally, the micro glass fiber is placed at 185-200 ℃ and solidified for 2-5 minutes, so that the filter material is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337608.2A CN110975434A (en) | 2019-12-23 | 2019-12-23 | Industrial dedusting and low-temperature denitration filtering material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337608.2A CN110975434A (en) | 2019-12-23 | 2019-12-23 | Industrial dedusting and low-temperature denitration filtering material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110975434A true CN110975434A (en) | 2020-04-10 |
Family
ID=70075659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337608.2A Pending CN110975434A (en) | 2019-12-23 | 2019-12-23 | Industrial dedusting and low-temperature denitration filtering material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110975434A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374880A (en) * | 1999-09-22 | 2002-10-16 | 戈尔企业控股股份有限公司 | Chemically active filter material |
| CN201192604Y (en) * | 2008-02-19 | 2009-02-11 | 厦门美达斯环保工业有限公司 | Filter material of environment friendly dust collector |
| CN101518718A (en) * | 2008-02-28 | 2009-09-02 | 中国纺织科学研究院 | Functional filter felt for eliminating harmful constituents of fume, preparation method and application method thereof |
| WO2013059216A1 (en) * | 2011-10-17 | 2013-04-25 | Aptwater, Inc. | Design of modules for use in and operation of a membrane biofilm reactor with reduced biofouling |
| CN103170182A (en) * | 2011-12-23 | 2013-06-26 | 东丽纤维研究所（中国）有限公司 | Filtering material for dedusting and low-temperature denitration, and preparation method and application thereof |
| CN103463871A (en) * | 2013-09-02 | 2013-12-25 | 安徽锦鸿环保科技有限公司 | Membrane-laminated fiberglass filter medium capable of denitration and dust removal |
| CN104014200A (en) * | 2014-05-29 | 2014-09-03 | 南京工业大学 | Preparation method of dedusting and denitration integrated filter material |
| CN104998467A (en) * | 2015-07-02 | 2015-10-28 | 辽宁鸿盛环境技术集团股份有限公司 | Filter material with denitration and dioxin-removal effects and preparation method thereof |
| CN106334373A (en) * | 2016-09-29 | 2017-01-18 | 芜湖美智空调设备有限公司 | Composite air purifying filter paper material and filter element using same |
| CN109603306A (en) * | 2018-12-29 | 2019-04-12 | 太湖金锦鸿过滤材料有限公司 | A kind of catalysis membrane-laminated fiberglass filter media and preparation method thereof |
| CN110499667A (en) * | 2019-08-27 | 2019-11-26 | 珠海菲伯过滤材料有限公司 | A kind of super-hydrophobic high-efficiency air filtering material and preparation method thereof |
-
2019
- 2019-12-23 CN CN201911337608.2A patent/CN110975434A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374880A (en) * | 1999-09-22 | 2002-10-16 | 戈尔企业控股股份有限公司 | Chemically active filter material |
| CN201192604Y (en) * | 2008-02-19 | 2009-02-11 | 厦门美达斯环保工业有限公司 | Filter material of environment friendly dust collector |
| CN101518718A (en) * | 2008-02-28 | 2009-09-02 | 中国纺织科学研究院 | Functional filter felt for eliminating harmful constituents of fume, preparation method and application method thereof |
| WO2013059216A1 (en) * | 2011-10-17 | 2013-04-25 | Aptwater, Inc. | Design of modules for use in and operation of a membrane biofilm reactor with reduced biofouling |
| CN103170182A (en) * | 2011-12-23 | 2013-06-26 | 东丽纤维研究所（中国）有限公司 | Filtering material for dedusting and low-temperature denitration, and preparation method and application thereof |
| CN103463871A (en) * | 2013-09-02 | 2013-12-25 | 安徽锦鸿环保科技有限公司 | Membrane-laminated fiberglass filter medium capable of denitration and dust removal |
| CN104014200A (en) * | 2014-05-29 | 2014-09-03 | 南京工业大学 | Preparation method of dedusting and denitration integrated filter material |
| CN104998467A (en) * | 2015-07-02 | 2015-10-28 | 辽宁鸿盛环境技术集团股份有限公司 | Filter material with denitration and dioxin-removal effects and preparation method thereof |
| CN106334373A (en) * | 2016-09-29 | 2017-01-18 | 芜湖美智空调设备有限公司 | Composite air purifying filter paper material and filter element using same |
| CN109603306A (en) * | 2018-12-29 | 2019-04-12 | 太湖金锦鸿过滤材料有限公司 | A kind of catalysis membrane-laminated fiberglass filter media and preparation method thereof |
| CN110499667A (en) * | 2019-08-27 | 2019-11-26 | 珠海菲伯过滤材料有限公司 | A kind of super-hydrophobic high-efficiency air filtering material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 徐宁主编: "《水泥工业环保工程手册》", 31 July 2008, 中国建筑工业出版社 * |
| 微生物工程编写组主编: "《微生物工程》", 30 November 1976 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104495837B (en) | Sargassum-based activated carbon and preparation method and application thereof | |
| WO2020063360A1 (en) | Method for preparing molecular sieve scr catalyst, and catalyst prepared thereby | |
| CN101428215B (en) | Process for producing flue gas denitration catalyst and flue gas denitration catalyst produced with the process | |
| CN102029178B (en) | Copper-based molecular sieve catalyst and preparation method thereof | |
| CN105107514A (en) | Honeycomb non-vanadium denitration shaping catalyst, preparation method and application thereof | |
| CN102335604A (en) | SCR (selective catalyctic reduction) low-temperature denitrification catalyst with nano core-shell structure and preparation method thereof | |
| CN102259009B (en) | SCR flue gas denitrification catalyst and preparation method based on sulfate-promoted TiO2 carrier | |
| CN103406122A (en) | Catalyst for desorbing nitrogen oxides and carbon monoxide at low temperature and preparation method thereof | |
| CN107362807A (en) | A kind of Mn/Co bases low temperature SCO catalyst and preparation method thereof | |
| CN101658787A (en) | Low-temperature selective catalytic reduction denitration catalyst and preparation method thereof | |
| CN107983338A (en) | A kind of method for improving Ca-Ti ore type composite metal oxide catalyst performance | |
| CN109433254A (en) | A kind of confinement molecular sieve denitrating catalyst and preparation method thereof | |
| CN103861653A (en) | Modified titanium dioxide, ultrafine crystal ceramic powder, high-strength heat-engine plant denitration catalyst, and preparation methods of modified titanium dioxide, ultrafine crystal ceramic powder, and high-strength heat-engine plant denitration catalyst | |
| CN103447079A (en) | Preparation method of Cu-Fe-ZSM-5-attapulgite compound flue gas denitrification catalyst | |
| CN107970917A (en) | A kind of denitrating flue gas dedusting honeycomb ceramic filter catalyst and preparation method thereof | |
| CN107233895B (en) | Oxidation catalyst for purifying motor vehicle tail gas and preparation method thereof | |
| CN104923249A (en) | A Calcination-Free MnO2-Fe2O3-Ce2O3-CeO2/CNTs Low-Temperature Denitrification Catalyst | |
| CN102000600B (en) | Integral normal-temperature trace nitrogen oxide purifying material and preparation method thereof | |
| CN101433855A (en) | Process for preparing SCR denitration catalyst and SCR denitration catalyst prepared by the method | |
| CN110124727B (en) | Fly ash-based denitration catalyst, preparation method and denitration method thereof | |
| CN105964292A (en) | Preparation method and application of Fe-ZSM-5 doped Rh and Er composite catalyst | |
| CN103537273B (en) | Denitrating catalyst of a kind of collaborative demercuration and preparation method thereof | |
| CN110975434A (en) | Industrial dedusting and low-temperature denitration filtering material and preparation method thereof | |
| CN112604694A (en) | Novel low-temperature water-resistant sulfur-resistant NH taking low-cost fly ash as carrier3-SCR catalyst | |
| CN104056667B (en) | A kind of ceramic honeycomb Catalysts and its preparation method for high-temp waste gas denitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |
|
| RJ01 | Rejection of invention patent application after publication |