CN112457043A - Preparation method of zeolite filter tube - Google Patents
Preparation method of zeolite filter tube Download PDFInfo
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- CN112457043A CN112457043A CN202011424269.4A CN202011424269A CN112457043A CN 112457043 A CN112457043 A CN 112457043A CN 202011424269 A CN202011424269 A CN 202011424269A CN 112457043 A CN112457043 A CN 112457043A
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- filter tube
- zeolite
- zeolite filter
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- pug
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/667—Sintering using wave energy, e.g. microwave sintering
Abstract
The invention provides a preparation method of a zeolite filter tube, and relates to the field of zeolite filter tube manufacturing. The preparation method of the zeolite filter tube comprises the following steps of S1: preparing materials; weighing 30-50 parts of modified zeolite, 30-50 parts of glass fiber, 5-15 parts of pore-forming agent, 0.3-0.6 part of sintering aid, 0.2-0.4 part of inorganic plasticizer, 0.4-0.6 part of water reducing agent AF, 0.1-0.3 part of dispersant and 0.1-0.3 part of polymer grinding aid by weight, mixing, adding water, and fully mixing; s2: performing vacuum pugging; uniformly mixing the materials by using a vacuum pug mill to obtain pug with certain toughness, wherein pug milling times are 1-3 times; s3: die-casting and forming; injecting the pug into a mold, and performing die casting; s4: sintering at high temperature; and (3) drying the die-cast zeolite filter tube by microwave, and sintering at the high temperature of 300-550 ℃ for 4 hours to obtain a final product. During desorption, the temperature is raised quickly, desorption is uniform, and the time is 30% of that of zeolite with a common form.
Description
Technical Field
The invention relates to the technical field of zeolite filter tube manufacturing, in particular to a preparation method of a zeolite filter tube.
Background
Volatile organic compounds, VOCs for short. There are many types of VOCs, among which aromatic hydrocarbons, alcohols, esters and aldehydes are common for use in industrial solvents. Most VOCs are toxic, have foul smell and even have carcinogenicity, and have great harm to human bodies and the environment. At present, organic gas pollutants emitted from factory VOC exhaust gas, automobile exhaust gas, fossil fuel combustion exhaust gas, home decoration materials, etc. are increasingly harming the global ecological environment and human health. All countries in the world continuously limit the discharge amount of VOC through legislation.
At present, VOC waste gas is treated by an adsorption method, and common adsorbents on the market mainly have two forms of particles and honeycombs. The adsorption material only has an adsorption function, but has no filtering function on dust and sticky substances, so that a pore passage is blocked and difficult to clean, and the replacement is complicated.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of a zeolite filter tube, which solves the problems of troublesome installation and slow temperature rise.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a preparation method of a zeolite filter tube comprises the following steps:
s1: stock preparation
Weighing 30-50 parts of modified zeolite, 30-50 parts of glass fiber, 5-15 parts of pore-forming agent, 0.3-0.6 part of sintering aid, 0.2-0.4 part of inorganic plasticizer, 0.4-0.6 part of water reducing agent AF, 0.1-0.3 part of dispersant and 0.1-0.3 part of polymer grinding aid according to weight, adding the modified zeolite, the glass fiber, the pore-forming agent, the sintering aid, the inorganic plasticizer, the water reducing agent, the dispersing agent and the polymer grinding aid into a stirring box in sequence, controlling the time interval between the two adjacent materials to be 4-5 minutes, then 100-300 parts of tap water is added into the stirring box, the temperature of the tap water is controlled to be 10-15 ℃, then fully stirring and mixing are carried out, so that the stirring and mixing time is 10-30 minutes, the rotating speed of a stirring motor is controlled to be 1000-;
s2: vacuum pugging
Adding the pug mixed and stirred in the first step into a vacuum pug mill, and controlling the working temperature of the vacuum pug mill to be 20-25 ℃ so that the mixture can obtain pug with certain toughness for 1-3 pugging times;
s3: die casting forming
Injecting the pug processed by the vacuum pug mill in the second step into a model for die casting, controlling the die casting time to be 1-2 minutes and ensuring the die casting pressure to be 10-20kPa
S4: high temperature sintering
Drying the die-cast zeolite filter tube in microwave, controlling the drying temperature to be between 100 ℃ and 200 ℃, controlling the drying time to be between 5 and 10 minutes, and sintering at the high temperature of 300 to 550 ℃ for 4 hours to obtain the final product.
Preferably, the diameter of the zeolite filter tube may be changed according to the actual application.
Preferably, the surface of the zeolite filter tube is provided with a filter layer, and surface dust and sticky substances can be removed by regularly back blowing with high-pressure air.
Preferably, the zeolite filter tube may be die cast into the inner and outer tubes.
Preferably, the die-casting is integrally formed.
Preferably, the vacuum pug mill is a conventional machine.
(III) advantageous effects
The invention provides a preparation method of a zeolite filter tube. The method has the following beneficial effects:
1. the invention has simple installation and replacement and convenient cleaning, and meanwhile, the surface is provided with the filter layer, and dust and sticky substances on the surface can be removed by regularly using high-pressure air for back flushing, so that the installation is safer.
2. In the invention, during regeneration, the temperature of the whole branch pipe is raised by raising the temperature of the inner pipe, and because the thin pipe is quickly raised and uniformly distributed, the temperature rise time is 30 percent of that of the common honeycomb zeolite, the time is greatly reduced, and the production cost is reduced.
3. According to the invention, the zeolite filter tube overcomes the problem that the filter tube on the market only has a filtering function and also has an adsorption function, so that the dual functions of filtering and adsorption are obtained, and the zeolite adsorption is ensured to easily block pores.
4. According to the invention, the zeolite filter tube is sintered for 4 hours at 300-550 ℃ in the microwave, so that the use effect of the zeolite filter tube is more ideal, and the service life of the zeolite filter tube is prolonged.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a preparation method of a zeolite filter tube, which comprises the following steps:
s1: stock preparation
Weighing 30 parts of modified zeolite, 30 parts of glass fiber, 5 parts of pore-forming agent, 0.3 part of sintering aid, 0.2 part of inorganic plasticizer, 0.4 part of water reducing agent AF, 0.1 part of dispersing agent and 0.1 part of polymer grinding aid by weight, sequentially adding the modified zeolite, the glass fiber, the pore-forming agent, the sintering aid, the inorganic plasticizer, the water reducing agent, the dispersing agent and the polymer grinding aid into a stirring box, controlling the time interval between the adjacent two to be 4-5 minutes, then adding 100 parts of tap water into the stirring box, controlling the temperature of the tap water to be 10-15 ℃, fully stirring and mixing to ensure that the stirring and mixing time is 10-30 minutes, controlling the rotating speed of a stirring motor to be 1000-2000r/min, and performing a second step after stirring;
s2: vacuum pugging
Adding the pug mixed and stirred in the first step into a vacuum pug mill, and controlling the working temperature of the vacuum pug mill to be 20-25 ℃ so that the mixture can obtain pug with certain toughness for 1-3 pugging times;
s3: die casting forming
Injecting the pug processed by the vacuum pug mill in the second step into a model for die casting, controlling the die casting time to be 1-2 minutes and ensuring the die casting pressure to be 10-20kPa
S4: high temperature sintering
Drying the die-cast zeolite filter tube in microwave, controlling the drying temperature to be between 100 ℃ and 200 ℃, controlling the drying time to be between 30 and 60 minutes, and sintering at the high temperature of 300 to 550 ℃ for 4 hours to obtain the final product.
The diameter of the zeolite filter tube may vary depending on the actual application.
The surface of the zeolite filter tube is provided with a filter layer, and dust and sticky substances on the surface can be removed by back flushing with high-pressure air regularly.
The zeolite filter tube can be die-cast into an inner tube and an outer tube, the temperature of the whole branch tube is raised through the temperature rise of the inner tube during regeneration, and the thin tube is fast in temperature rise and uniform in air distribution, so that the temperature rise time is 30% of that of zeolite in a common form, the time is greatly reduced, and the production cost is reduced.
The die-casting molding is integrated.
The vacuum pug mill is a conventional machine.
Example two:
the embodiment of the invention provides a preparation method of a zeolite filter tube, which comprises the following steps:
s1: stock preparation
Weighing 40 parts of modified zeolite, 40 parts of glass fiber, 10 parts of pore-forming agent, 0.5 part of sintering aid, 0.3 part of inorganic plasticizer, 0.5 part of water reducing agent AF, 0.2 part of dispersing agent and 0.2 part of polymer grinding aid by weight, sequentially adding the modified zeolite, the glass fiber, the pore-forming agent, the sintering aid, the inorganic plasticizer, the water reducing agent, the dispersing agent and the polymer grinding aid into a stirring box, controlling the time interval between the adjacent two to be 4-5 minutes, then adding 200 parts of tap water into the stirring box, controlling the temperature of the tap water to be 10-15 ℃, fully stirring and mixing to ensure that the stirring and mixing time is 10-30 minutes, controlling the rotating speed of a stirring motor to be 1000-2000r/min, and performing a second step after stirring;
s2: vacuum pugging
Adding the pug mixed and stirred in the first step into a vacuum pug mill, and controlling the working temperature of the vacuum pug mill to be 20-25 ℃ so that the mixture can obtain pug with certain toughness for 1-3 pugging times;
s3: die casting forming
Injecting the pug processed by the vacuum pug mill in the second step into a model for die casting, controlling the die casting time to be 1-2 minutes and ensuring the die casting pressure to be 10-20kPa
S4: high temperature sintering
Drying the die-cast zeolite filter tube in microwave, controlling the drying temperature to be between 100 ℃ and 200 ℃, controlling the drying time to be between 30 and 60 minutes, and sintering at the high temperature of 300 to 550 ℃ for 4 hours to obtain the final product.
The diameter of the zeolite filter tube may vary depending on the actual application.
The surface of the zeolite filter tube is provided with a filter layer, and dust and sticky substances on the surface can be removed by back flushing with high-pressure air regularly.
The zeolite filter tube can be die-cast into an inner tube and an outer tube, the temperature of the whole branch tube is raised through the temperature rise of the inner tube during regeneration, and the thin tube is fast in temperature rise and uniform in air distribution, so that the temperature rise time is 30% of that of zeolite in a common form, the time is greatly reduced, and the production cost is reduced.
The die-casting molding is integrated.
The vacuum pug mill is a conventional machine.
Example three:
the embodiment of the invention provides a preparation method of a zeolite filter tube, which comprises the following steps:
s1: stock preparation
Weighing 30-50 parts of modified zeolite, 50 parts of glass fiber, 15 parts of pore-forming agent, 0.6 part of sintering aid, 0.4 part of inorganic plasticizer, 0.6 part of water reducing agent AF, 0.3 part of dispersing agent and 0.3 part of polymer grinding aid by weight, sequentially adding the modified zeolite, the glass fiber, the pore-forming agent, the sintering aid, the inorganic plasticizer, the water reducing agent, the dispersing agent and the polymer grinding aid into a stirring box, controlling the time interval between the adjacent two to be 4-5 minutes, then adding 300 parts of tap water into the stirring box, controlling the temperature of the tap water to be 10-15 ℃, fully stirring and mixing to ensure that the stirring and mixing time is 10-30 minutes, controlling the rotating speed of a stirring motor to be 1000-2000r/min, and performing the second step after stirring;
s2: vacuum pugging
Adding the pug mixed and stirred in the first step into a vacuum pug mill, and controlling the working temperature of the vacuum pug mill to be 20-25 ℃ so that the mixture can obtain pug with certain toughness for 1-3 pugging times;
s3: die casting forming
Injecting the pug processed by the vacuum pug mill in the second step into a model for die casting, controlling the die casting time to be 1-2 minutes and ensuring the die casting pressure to be 10-20kPa
S4: high temperature sintering
Drying the die-cast zeolite filter tube in microwave, controlling the drying temperature to be between 100 ℃ and 200 ℃, controlling the drying time to be between 30 and 60 minutes, and sintering at the high temperature of 300 to 550 ℃ for 4 hours to obtain the final product.
The diameter of the zeolite filter tube may vary depending on the actual application.
The surface of the zeolite filter tube is provided with a filter layer, and dust and sticky substances on the surface can be removed by back flushing with high-pressure air regularly.
The zeolite filter tube can be die-cast into an inner tube and an outer tube, the temperature of the whole branch tube is raised through the temperature rise of the inner tube during regeneration, and the thin tube is fast in temperature rise and uniform in air distribution, so that the temperature rise time is 30% of that of zeolite in a common form, the time is greatly reduced, and the production cost is reduced.
The die-casting molding is integrated.
The vacuum pug mill is a conventional machine
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A preparation method of a zeolite filter tube is characterized by comprising the following steps:
s1: stock preparation
Weighing 30-50 parts of modified zeolite, 30-50 parts of glass fiber, 5-15 parts of pore-forming agent, 0.3-0.6 part of sintering aid, 0.2-0.4 part of inorganic plasticizer, 0.4-0.6 part of water reducing agent AF, 0.1-0.3 part of dispersant and 0.1-0.3 part of polymer grinding aid according to weight, adding the modified zeolite, the glass fiber, the pore-forming agent, the sintering aid, the inorganic plasticizer, the water reducing agent, the dispersing agent and the polymer grinding aid into a stirring box in sequence, controlling the time interval between the two adjacent materials to be 4-5 minutes, then 100-300 parts of tap water is added into the stirring box, the temperature of the tap water is controlled to be 10-15 ℃, then fully stirring and mixing are carried out, so that the stirring and mixing time is 10-30 minutes, the rotating speed of a stirring motor is controlled to be 1000-;
s2: vacuum pugging
Adding the pug mixed and stirred in the first step into a vacuum pug mill, and controlling the working temperature of the vacuum pug mill to be 20-25 ℃ so that the mixture can obtain pug with certain toughness for 1-3 pugging times;
s3: die casting forming
Injecting the pug processed by the vacuum pug mill in the second step into a model for die casting, controlling the die casting time to be 1-2 minutes and ensuring the die casting pressure to be 10-20kPa
S4: high temperature sintering
Drying the die-cast zeolite filter tube in microwave, controlling the drying temperature to be between 100 ℃ and 200 ℃, controlling the drying time to be between 30 and 60 minutes, and sintering at the high temperature of 300 to 550 ℃ for 4 hours to obtain the final product.
2. A method of making a zeolite filter tube according to claim 1, wherein: the diameter of the zeolite filter tube may vary depending on the actual application.
3. A method of making a zeolite filter tube according to claim 1, wherein: the surface of the zeolite filter tube is provided with a filter layer, and dust and sticky substances on the surface can be removed by back flushing with high-pressure air regularly.
4. A method of making a zeolite filter tube according to claim 1, wherein: the zeolite filter tube may be die cast into an inner tube and an outer tube.
5. A method of making a zeolite filter tube according to claim 1, wherein: the die-casting molding is integrated.
6. A method of making a zeolite filter tube according to claim 1, wherein: the vacuum pug mill is a conventional machine.
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|---|---|---|---|
| CN202011424269.4A CN112457043A (en) | 2020-12-08 | 2020-12-08 | Preparation method of zeolite filter tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011424269.4A CN112457043A (en) | 2020-12-08 | 2020-12-08 | Preparation method of zeolite filter tube |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523528A (en) * | 1991-07-25 | 1993-02-02 | Kawata Mfg Co Ltd | Adsorbable honeycomb ceramic body and preparation thereof |
| CN101952224A (en) * | 2007-11-30 | 2011-01-19 | 康宁股份有限公司 | The zeolite based honeycomb |
-
2020
- 2020-12-08 CN CN202011424269.4A patent/CN112457043A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523528A (en) * | 1991-07-25 | 1993-02-02 | Kawata Mfg Co Ltd | Adsorbable honeycomb ceramic body and preparation thereof |
| CN101952224A (en) * | 2007-11-30 | 2011-01-19 | 康宁股份有限公司 | The zeolite based honeycomb |
Non-Patent Citations (1)
| Title |
|---|
| 张春晖: "《过滤技术在环境工程中的应用》", 31 December 2011 * |
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