CN108892532A - A kind of high-temperature dust removal chimney filter and preparation method thereof - Google Patents
A kind of high-temperature dust removal chimney filter and preparation method thereof Download PDFInfo
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- CN108892532A CN108892532A CN201810909059.0A CN201810909059A CN108892532A CN 108892532 A CN108892532 A CN 108892532A CN 201810909059 A CN201810909059 A CN 201810909059A CN 108892532 A CN108892532 A CN 108892532A
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- ceramic fiber
- fiber blanket
- temperature
- dust removal
- preparation
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/005—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing gelatineous or gel forming binders, e.g. gelatineous Al(OH)3, sol-gel binders
-
- 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
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention provides a kind of preparation methods of high-temperature dust removal chimney filter, include the following steps：A) both ends of ceramic fiber blanket are carried out to thin processing, the ceramic fiber blanket that obtains that treated；B) treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing are combined with each other by high-temperature agglomerant, obtain formed pipe；The thickness at the compound position is identical as the thickness of ceramic fiber blanket；C) the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.The present invention is using ceramic fiber blanket, inorganic bonding agent and high-temperature agglomerant as primary raw material, and the bulk density of the high-temperature dust removal chimney filter prepared according to above-mentioned technique is in 250~450kg/m3Between, porosity is high, and efficiency of dust collection is more excellent, meanwhile, the mechanical strength and thermal shock resistance of high-temperature dust removal chimney filter are more excellent, are convenient for construction and installation.
Description
Technical field
The present invention relates to the dedusting technical fields more particularly to a kind of high-temperature dust removal chimney filter and its system under hot environment
Preparation Method.
Background technique
High-temperature dust removal chimney filter is a kind of gas-solid separating device under hot environment.The industries such as petrochemical industry, metallurgy, electric power exist
High-temperature dusty gas, if not being filtered separation to high-temperature dusty gas, meeting would generally be generated during the manufacturing
It pollutes the environment, while can make troubles to energy regenerating.High-temperature dust removal chimney filter can effectively solve the problems, such as this, make gas
Body is i.e. clean at high operating temperatures, offers convenience for energy regenerating.
The Chinese patent of Publication No. CN1569306A discloses one kind and prepares ceramic filter by primary raw material of cordierite
Although the method for pipe, cordierite refractory ceramics chimney filter obtain preferable thermal shock resistance, but bad mechanical strength.Patent publication No.
It discloses for the Chinese patent of CN101628195A and a kind of prepares high-temperature gas ceramic filter by primary raw material of mullite
Method, although mullite refractory ceramics chimney filter obtains preferable mechanical strength, but thermal shock resistance is poor.Publication No.
The Chinese patent of CN103553704A discloses a kind of side that high-temperature dust removal ceramic filter tube is prepared using andalusite as primary raw material
Method, although andalusite refractory ceramics chimney filter obtains preferable mechanical strength and thermal shock resistance, but filter efficiency is not high.It is aobvious
So, above-mentioned high temperature filtration pipe comprehensive performance is poor, does not meet market demands, and through detecting, the volume of above-mentioned high temperature filtration pipe is close
Degree is generally in 1000kg/m3Left and right, weight is larger, constructional difficulties；The porosity of high temperature filtration pipe is generally 40% or so, dedusting
For efficiency between 80~85%, dust removal efficiency is lower；Thermal shock resistance is up for improving.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that provide a kind of high-temperature dust removal chimney filter and preparation method thereof,
The efficiency of dust collection of high-temperature dust removal chimney filter prepared by the present invention is more excellent, meanwhile, the mechanical strength and thermal shock resistance of high-temperature dust removal chimney filter
It can be more excellent.
The present invention provides a kind of preparation methods of high-temperature dust removal chimney filter, include the following steps：
A) both ends of ceramic fiber blanket are carried out to thin processing, the ceramic fiber blanket that obtains that treated；
B) treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing pass through high-temperature agglomerant
It is combined with each other, obtains formed pipe；The thickness at the compound position is identical as the thickness of ceramic fiber blanket；
C) the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.
Preferably, in the ceramic fiber blanket, content >=40wt% of aluminium oxide, the content of aluminium oxide and silica >=
98wt%；
The bulk density of the ceramic fiber blanket is 96~128kg/m3。
Preferably, the solid content of the high-temperature agglomerant is 40~50wt%；
In the high-temperature agglomerant, content >=42wt% of aluminium oxide, content >=96wt% of aluminium oxide and silica.
Preferably, the inorganic bonding agent is selected from one or more of silica solution, Aluminum sol and zirconium colloidal sol；
The solid content of the inorganic bonding agent is 10~40wt%.
Preferably, the mass ratio of the ceramic fiber blanket, high-temperature agglomerant and inorganic bonding agent is 30~60：2~5：38
~65.
Preferably, step A) in, the both ends of ceramic fiber blanket are carried out before thinning processing, further include：
Ceramic fiber blanket is subjected to needle thorn enhancing.
Preferably, step B) in, it is described be combined with each other after, further include drying；
The temperature of the drying is 60~90 DEG C, and the time of the drying is 3~5h.
Preferably, step C) in, described be impregnated with is realized by vacuum filtration；
The vacuum degree of the vacuum is 400~550mmHg.
Preferably, step C) in, the mode of the drying is microwave drying；
The temperature of the drying is 70~90 DEG C, and the time of the drying is 2~4h.
The present invention also provides a kind of high-temperature dust removal chimney filters of preparation method preparation described above.
The present invention provides a kind of preparation methods of high-temperature dust removal chimney filter, include the following steps：A) by ceramic fiber blanket
Both ends carry out thinning processing, the ceramic fiber blanket that obtains that treated；B) treated after ceramic fiber blanket is wound by described,
The both ends for thinning processing are combined with each other by high-temperature agglomerant, obtain formed pipe；The thickness at the compound position with
The thickness of ceramic fiber blanket is identical；C) the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.This
Invention is using ceramic fiber blanket, inorganic bonding agent and high-temperature agglomerant as primary raw material, the high temperature for preparing according to above-mentioned technique
The bulk density of dedusting chimney filter is in 250~450kg/m3Between, porosity is high, and efficiency of dust collection is more excellent, meanwhile, high-temperature dust removal chimney filter
Mechanical strength and thermal shock resistance it is more excellent, be convenient for construction and installation.
The experimental results showed that the bulk density of high-temperature dust removal chimney filter prepared by the present invention is in 250~450kg/m3Between, hole
Gap rate may be implemented 82~90%, and efficiency of dust collection may be implemented 90~95%, and 0.6~1.5MPa may be implemented in flexural strength, resist
Thermal shock number may be implemented 7~9 times.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides a kind of preparation methods of high-temperature dust removal chimney filter, include the following steps：
A) both ends of ceramic fiber blanket are carried out to thin processing, the ceramic fiber blanket that obtains that treated；
B) treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing pass through high-temperature agglomerant
It is combined with each other, obtains formed pipe；The thickness at the compound position is identical as the thickness of ceramic fiber blanket；
C) the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.
In the present invention, it is preferred to, in the ceramic fiber blanket, content >=40wt% of aluminium oxide, aluminium oxide and dioxy
Content >=98wt% of SiClx.The bulk density of the ceramic fiber blanket is preferably 96~128kg/m3.Of the invention certain
In embodiment, the ceramic fiber blanket is the ceramic fiber blanket of Shandong Luyang energy-saving material limited liability company production, the pottery
In porcelain tapetum fibrosum, the content of aluminium oxide is 45wt%, 40wt% or 48wt%, and the content of aluminium oxide and silica is
99wt%, 98wt% or 99.5wt%.The bulk density of ceramic fiber blanket is 96kg/m3、110kg/m3Or 128kg/m3。
Thickness of the thickness of the ceramic fiber blanket preferably than the high-temperature dust removal chimney filter is higher by 10~15mm.In the present invention
In, the thickness of the ceramic fiber blanket is preferably 40~60mm.In certain embodiments of the present invention, the ceramic fiber blanket
With a thickness of 40mm, 55mm or 60mm.
In the present invention, the length of the ceramic fiber blanket is preferably the length of the high-temperature dust removal chimney filter.The present invention couple
The length of the ceramic fiber blanket has no special limitation, can be selected according to the actual situation.In certain realities of the invention
It applies in example, the length of the ceramic fiber blanket is 1000~3000mm.The width of the ceramic fiber blanket is preferably than the high temperature
The outer perimeter of the section circle of dedusting chimney filter is to the youthful and the elderly 100mm.In certain embodiments of the present invention, the width of the ceramic fiber blanket
It spends longer 100mm, 120mm or 130mm than the outer perimeter of the section of high-temperature dust removal chimney filter circle.The present invention is to the ceramic fibre
The width of blanket has no special limitation, can be selected according to the actual situation.In certain embodiments of the present invention, it gives
The outer diameter of the section circle of the high-temperature dust removal chimney filter is 50~100mm, and the internal diameter of the section circle is 20~50mm.
The present invention first carries out the both ends of ceramic fiber blanket to thin processing, the ceramic fiber blanket that obtains that treated.
The both ends of the ceramic fiber blanket are the mutually opposite both ends of ceramic fiber blanket.
The both ends of ceramic fiber blanket are carried out before thinning processing, it is also preferable to include：Ceramic fiber blanket is subjected to needle thorn enhancing.
The present invention has no special limitation to the method for needle thorn enhancing, using the side of needle well known to those skilled in the art thorn enhancing
Method.It can be further improved the toughness and thermal shock resistance of high-temperature dust removal chimney filter by needle thorn enhancing.
The present invention has no special limitation to the thickness for thinning processing, can satisfy treated the ceramic fibre
After blanket is wound, the thickness at the compound position in the both ends for thinning processing is identical as the thickness of ceramic fiber blanket.
After the ceramic fiber blanket that obtains that treated, treated after ceramic fiber blanket is wound by described, described to thin
The both ends of processing are combined with each other by high-temperature agglomerant, obtain formed pipe；The thickness and ceramic fibre at the compound position
The thickness of blanket is identical.
The present invention has no special limitation to the method and apparatus of the winding, using volume well known to those skilled in the art
Around method and apparatus.In certain embodiments of the present invention, the equipment of the winding is preferably：Uniformly open up filter hole
Screen pipe.The outer diameter of the screen pipe is identical as the internal diameter of the high-temperature dust removal chimney filter.The both ends connection of the screen pipe is true
Sky pump and winding driving device.After winding, the both ends for thinning processing are stitched together, and are carried out by high-temperature agglomerant
It is compound, obtain formed pipe.
In the present invention, it is preferred to, in the high-temperature agglomerant, content >=42wt% of aluminium oxide, aluminium oxide and dioxy
Content >=96wt% of SiClx.The solid content of the high-temperature agglomerant is preferably 40~50wt%.In certain implementations of the invention
In example, the high-temperature agglomerant is the binder 1400 of Shandong Luyang energy-saving material limited liability company production, and the high temperature is viscous
Tie in agent, the content of aluminium oxide is 42wt%, 44wt% or 45wt%, the content of aluminium oxide and silica be 96wt%,
97wt% or 98wt%.The solid content of the high-temperature agglomerant is preferably 40wt%, 45wt% or 50wt%.
It is described be combined with each other after, it is also preferable to include drying.The drying is preferably hot-air seasoning.The temperature of the drying
Preferably 60~90 DEG C.In certain embodiments of the present invention, the temperature of the drying is 90 DEG C, 75 DEG C or 60 DEG C.The baking
The dry time is preferably 3~5h.In certain embodiments of the present invention, the time of the drying is 3h, 4h or 5h.
After obtaining formed pipe, the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.
The inorganic bonding agent is preferably one or more of silica solution, Aluminum sol and zirconium colloidal sol.The inorganic combination
The solid content of agent is preferably 10~40wt%.In certain embodiments of the present invention, the solid content of the inorganic bonding agent is
30wt%, 10wt% or 40wt%.
The mass ratio of the ceramic fiber blanket, high-temperature agglomerant and inorganic bonding agent is preferably 30~60：2~5：38~
65.In certain embodiments of the present invention, the mass ratio of the ceramic fiber blanket, high-temperature agglomerant and inorganic bonding agent is 30：
5：65 or 50：2：48 or 60：2：38.
In the present invention, described be impregnated with preferably is realized by vacuum filtration.In certain embodiments of the present invention, the leaching
It is specially thoroughly：
Apply inorganic bonding agent on the surface of the formed pipe to be under vacuum conditions impregnated into the inorganic bonding agent
The inside of the formed pipe.
The vacuum degree of the vacuum is preferably 400~550mmHg.In certain embodiments of the present invention, the vacuum
Vacuum degree is 400mmHg, 500mmHg or 550mmHg.The present invention does not have special limit to the vacuum mode for providing vacuum condition
System can provide vacuum condition using Roots vaccum pump, can generate vacuum suction filter effect, arrive inorganic bonding agent uniformly penetrating
The inside of formed pipe.The present invention preferably controls the outer diameter size of formed pipe, as high-temperature dust removal chimney filter while vacuum suction filter
Outer diameter.The addition of inorganic bonding agent, it is ensured that the intensity of high-temperature dust removal chimney filter at high operating temperatures, for guaranteeing dedusting effect
Rate plays indispensable role.
In the present invention, the mode of the drying is preferably microwave drying.The temperature of the drying is preferably 70~90 DEG C.
In certain embodiments of the present invention, the temperature of the drying is 70 DEG C, 80 DEG C or 90 DEG C.The time of the drying is preferably 2
~4h.In certain embodiments of the present invention, the time of the drying is 4h, 3h or 2h.
The present invention further uses microwave drying to ensure that the homogeneity and drying efficiency of intensity inside and outside high-temperature dust removal chimney filter,
Production technology can be greatly simplified, production efficiency is improved.It is fiber interweaving structure inside the high-temperature dust removal chimney filter of preparation, high temperature removes
The efficiency of dust collection of dirt chimney filter is more excellent.
Without using coagulating agent in preparation method provided by the invention, raw material only includes ceramic fiber blanket, high-temperature agglomerant
And inorganic bonding agent, simple process.
The present invention has no special limitation to the source of above-mentioned used raw material, can be general commercially available.
The present invention also provides a kind of high-temperature dust removal chimney filters of preparation method preparation described above.
The bulk density of high-temperature dust removal chimney filter provided by the invention is in 250~450kg/m3Between, porosity is high, dedusting effect
Rate is more excellent, meanwhile, the mechanical strength and thermal shock resistance of high-temperature dust removal chimney filter are more excellent, are convenient for construction and installation.
The present invention has no special limitation to the size of the high-temperature dust removal chimney filter, can be selected according to actual needs
It selects.In certain embodiments of the present invention, the length of the high-temperature dust removal chimney filter is 1000~3000mm, the high-temperature dust removal filter
The outer diameter of pipe is 50~100mm, and the internal diameter of the high-temperature dust removal chimney filter is 20~50mm.
The experimental results showed that the bulk density of high-temperature dust removal chimney filter prepared by the present invention is in 250~450kg/m3Between, hole
Gap rate may be implemented 82~90%, and efficiency of dust collection may be implemented 90~95%, and 0.6~1.5MPa may be implemented in flexural strength, resist
Thermal shock number may be implemented 7~9 times.
The present invention provides a kind of preparation methods of high-temperature dust removal chimney filter, include the following steps：A) by ceramic fiber blanket
Both ends carry out thinning processing, the ceramic fiber blanket that obtains that treated；B) treated after ceramic fiber blanket is wound by described,
The both ends for thinning processing are combined with each other by high-temperature agglomerant, obtain formed pipe；The thickness at the compound position with
The thickness of ceramic fiber blanket is identical；C) the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.This
Invention is using ceramic fiber blanket, inorganic bonding agent and high-temperature agglomerant as primary raw material, the high temperature for preparing according to above-mentioned technique
The bulk density of dedusting chimney filter is in 250~450kg/m3Between, porosity is high, and efficiency of dust collection is more excellent, meanwhile, high-temperature dust removal chimney filter
Mechanical strength and thermal shock resistance it is more excellent, be convenient for construction and installation.
The experimental results showed that the bulk density of high-temperature dust removal chimney filter prepared by the present invention is in 250~450kg/m3Between, hole
Gap rate may be implemented 82~90%, and efficiency of dust collection may be implemented 90~95%, and 0.6~1.5MPa may be implemented in flexural strength, resist
Thermal shock number may be implemented 7~9 times.
In order to further illustrate the present invention, with reference to embodiments to a kind of high-temperature dust removal chimney filter provided by the invention and its
Preparation method is described in detail, but cannot be understood as limiting the scope of the present invention.
Embodiment 1
Raw material：The ceramic fiber blanket of Shandong Luyang energy-saving material limited liability company production, in ceramic fiber blanket, aluminium oxide
Content be 42wt%, the content of aluminium oxide and silica is 99wt%.The density of ceramic fiber blanket is 96kg/m3.Ceramics
Tapetum fibrosum with a thickness of 40mm.The width of ceramic fiber blanket is 100mm longer than the outer perimeter of the section of high-temperature dust removal chimney filter circle.
Inorganic bonding agent is silica solution.The solid content of the silica solution is 30wt%.
High-temperature agglomerant is the binder 1400 of Shandong Luyang energy-saving material limited liability company production.The high temperature bond
In agent, the content of aluminium oxide is 42wt%, and the content of aluminium oxide and silica is 96wt%.Consolidating for the high-temperature agglomerant contains
Amount is preferably 40wt%.
30 parts by weight of ceramic fiber blanket, 65 parts by weight of inorganic bonding agent, 5 parts by weight of high-temperature adhesives.
Preparation step：
It will carry out thinning processing by the both ends of ceramic fiber blanket of needle thorn enhancing, the ceramic fiber blanket that obtains that treated.
Treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing are multiple by high-temperature agglomerant
It is combined, then, hot-air seasoning 3h, obtains formed pipe at 90 DEG C；The thickness and ceramic fiber blanket at the compound position
Thickness it is identical.The equipment of winding is：Uniformly open up the screen pipe of filter hole.The outer diameter of the screen pipe and the high-temperature dust removal
The internal diameter of chimney filter is identical.The both ends connection vacuum pump and winding driving device of the screen pipe.
Applying inorganic bonding agent on the surface of the formed pipe, while opening vacuum pump, vacuum pump is Roots vaccum pump,
Under the action of vacuum suction filter, the inorganic bonding agent is impregnated into the inside of the formed pipe.The vacuum degree of the vacuum is
400mmHg.The outer diameter of vacuum suction filter process control formed pipe is 50mm.Then, using microwave drying, the temperature of microwave drying is
70 DEG C, time 4h obtains high-temperature dust removal chimney filter.Through measurement it is found that the length of high-temperature dust removal chimney filter is 1000mm, outer diameter is
50mm, internal diameter 20mm.
Embodiment 2
Raw material：The ceramic fiber blanket of Shandong Luyang energy-saving material limited liability company production, in ceramic fiber blanket, aluminium oxide
Content be 40wt%, the content of aluminium oxide and silica is 98wt%.The density of ceramic fiber blanket is 110kg/m3.Ceramics
Tapetum fibrosum with a thickness of 55mm.The width of ceramic fiber blanket is 120mm longer than the outer perimeter of the section of high-temperature dust removal chimney filter circle.
Inorganic bonding agent is Aluminum sol.The solid content of the Aluminum sol is 10wt%.
High-temperature agglomerant is the binder 1400 of Shandong Luyang energy-saving material limited liability company production.The high temperature bond
In agent, the content of aluminium oxide is 44wt%, and the content of aluminium oxide and silica is 97wt%.Consolidating for the high-temperature agglomerant contains
Amount is preferably 45wt%.
50 parts by weight of ceramic fiber blanket, 48 parts by weight of inorganic bonding agent, 2 parts by weight of high-temperature adhesives.
Preparation step：
It will carry out thinning processing by the both ends of ceramic fiber blanket of needle thorn enhancing, the ceramic fiber blanket that obtains that treated.
Treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing are multiple by high-temperature agglomerant
It is combined, then, hot-air seasoning 4h, obtains formed pipe at 75 DEG C；The thickness and ceramic fiber blanket at the compound position
Thickness it is identical.The equipment of winding is：Uniformly open up the screen pipe of filter hole.The outer diameter of the screen pipe and the high-temperature dust removal
The internal diameter of chimney filter is identical.The both ends connection vacuum pump and winding driving device of the screen pipe.
Applying inorganic bonding agent on the surface of the formed pipe, while opening vacuum pump, vacuum pump is Roots vaccum pump,
Under the action of vacuum suction filter, the inorganic bonding agent is impregnated into the inside of the formed pipe.The vacuum degree of the vacuum is
500mmHg.The outer diameter of vacuum suction filter process control formed pipe is 80mm.Then, using microwave drying, the temperature of microwave drying is
80 DEG C, time 3h obtains high-temperature dust removal chimney filter.
Through measurement it is found that the length of high-temperature dust removal chimney filter is 2000mm, outer diameter 80mm, internal diameter 40mm.
Embodiment 3
Raw material：The ceramic fiber blanket of Shandong Luyang energy-saving material limited liability company production, in ceramic fiber blanket, aluminium oxide
Content be 48wt%, the content of aluminium oxide and silica is 99.5wt%.The density of ceramic fiber blanket is 128kg/m3.Pottery
Porcelain tapetum fibrosum with a thickness of 60mm.The width of ceramic fiber blanket is longer than the outer perimeter of the section of high-temperature dust removal chimney filter circle
130mm。
Inorganic bonding agent is zirconium colloidal sol.The solid content of the zirconium colloidal sol is 40wt%.
High-temperature agglomerant is the binder 1400 of Shandong Luyang energy-saving material limited liability company production.The high temperature bond
In agent, the content of aluminium oxide is 45wt%, and the content of aluminium oxide and silica is 98wt%.Consolidating for the high-temperature agglomerant contains
Amount is preferably 50wt%.
60 parts by weight of ceramic fiber blanket, 38 parts by weight of inorganic bonding agent, 2 parts by weight of high-temperature adhesives.
Preparation step：
It will carry out thinning processing by the both ends of ceramic fiber blanket of needle thorn enhancing, the ceramic fiber blanket that obtains that treated.
Treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing are multiple by high-temperature agglomerant
It is combined, then, hot-air seasoning 5h, obtains formed pipe at 60 DEG C；The thickness and ceramic fiber blanket at the compound position
Thickness it is identical.The equipment of winding is：Uniformly open up the screen pipe of filter hole.The outer diameter of the screen pipe and the high-temperature dust removal
The internal diameter of chimney filter is identical.The both ends connection vacuum pump and winding driving device of the screen pipe.
Applying inorganic bonding agent on the surface of the formed pipe, while opening vacuum pump, vacuum pump is Roots vaccum pump,
Under the action of vacuum suction filter, the inorganic bonding agent is impregnated into the inside of the formed pipe.The vacuum degree of the vacuum is
550mmHg.The outer diameter of vacuum suction filter process control formed pipe is 80mm.Then, using microwave drying, the temperature of microwave drying is
90 DEG C, time 2h obtains high-temperature dust removal chimney filter.
Through measurement it is found that the length of high-temperature dust removal chimney filter is 3000mm, outer diameter 100mm, internal diameter 50mm.
Embodiment 4
The high-temperature dust removal chimney filter number consecutively that Examples 1 to 3 is prepared is A, B, C.To three kinds of high-temperature dust removal chimney filters
Bulk density, porosity, 5 efficiency of dust collection, flexural strength and 20 DEG C~1000 DEG C thermal shock numbers indexs tested, survey
Test result is as shown in table 1.
5 index test results of the high-temperature dust removal chimney filter that 1 Examples 1 to 3 of table is prepared
As it can be seen from table 1 the present invention is pressed using ceramic fiber blanket, inorganic bonding agent and high-temperature agglomerant as primary raw material
The bulk density of the high-temperature dust removal chimney filter prepared according to above-mentioned technique is in 250~450kg/m3Between, porosity is high, dedusting effect
Rate is more excellent, meanwhile, the mechanical strength and thermal shock resistance of high-temperature dust removal chimney filter are more excellent, are convenient for construction and installation.Experimental result table
Bright, the bulk density of high-temperature dust removal chimney filter prepared by the present invention is in 250~450kg/m3Between, porosity may be implemented 82~
90%, efficiency of dust collection may be implemented 90~95%, and 0.6~1.5MPa may be implemented in flexural strength, and thermal shock number may be implemented 7
~9 times.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of preparation method of high-temperature dust removal chimney filter, includes the following steps：
A) both ends of ceramic fiber blanket are carried out to thin processing, the ceramic fiber blanket that obtains that treated；
B) treated after ceramic fiber blanket is wound by described, and the both ends for thinning processing are compound by high-temperature agglomerant
Together, formed pipe is obtained；The thickness at the compound position is identical as the thickness of ceramic fiber blanket；
C) the effective inorganic bonding agent of molding is impregnated with, obtains high-temperature dust removal chimney filter after dry.
2. preparation method according to claim 1, which is characterized in that in the ceramic fiber blanket, the content of aluminium oxide >=
Content >=98wt% of 40wt%, aluminium oxide and silica；
The bulk density of the ceramic fiber blanket is 96~128kg/m3。
3. preparation method according to claim 1, which is characterized in that the solid content of the high-temperature agglomerant be 40~
50wt%；
In the high-temperature agglomerant, content >=42wt% of aluminium oxide, content >=96wt% of aluminium oxide and silica.
4. preparation method according to claim 1, which is characterized in that the inorganic bonding agent is selected from silica solution, Aluminum sol
One or more of with zirconium colloidal sol；
The solid content of the inorganic bonding agent is 10~40wt%.
5. preparation method according to claim 1, which is characterized in that the ceramic fiber blanket, high-temperature agglomerant and inorganic
The mass ratio of bonding agent is 30~60：2~5：38~65.
6. preparation method according to claim 1, which is characterized in that step A) in, the both ends of ceramic fiber blanket are carried out
Before thinning processing, further include：
Ceramic fiber blanket is subjected to needle thorn enhancing.
7. preparation method according to claim 1, which is characterized in that step B) in, it is described be combined with each other after, further include
Drying；
The temperature of the drying is 60~90 DEG C, and the time of the drying is 3~5h.
8. preparation method according to claim 1, which is characterized in that step C) in, it is described to be impregnated with through vacuum filtration in fact
It is existing；
The vacuum degree of the vacuum is 400~550mmHg.
9. preparation method according to claim 1, which is characterized in that step C) in, the mode of the drying is dry for microwave
It is dry；
The temperature of the drying is 70~90 DEG C, and the time of the drying is 2~4h.
10. the high-temperature dust removal chimney filter of claim 1~9 any one preparation method preparation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734461A (en) * | 2019-02-27 | 2019-05-10 | 盐城飞潮环保技术有限公司 | A kind of preparation method of pyroceram fibre screen pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822639A (en) * | 1955-12-30 | 1959-10-28 | Babcock & Wilcox Co | A method of forming a pad or blanket from inorganic wool fibers |
| CN1569306A (en) * | 2004-04-29 | 2005-01-26 | 山东工业陶瓷研究设计院 | Refractory ceramic filtering element for hot gas purification and method for preparing the same |
| CN101628195A (en) * | 2009-07-22 | 2010-01-20 | 河北理工大学 | High-temperature gas filter supporting body and preparation method thereof |
| CN103553704A (en) * | 2013-11-08 | 2014-02-05 | 武汉理工大学 | Method for preparing high-temperature dust removal ceramic filter pipe by utilizing andalusite |
| CN107670428A (en) * | 2017-10-19 | 2018-02-09 | 苏州红恩新材料科技有限公司 | A kind of screen pipe suitable for high-temperature dust-containing flue gas |
-
2018
- 2018-08-10 CN CN201810909059.0A patent/CN108892532B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB822639A (en) * | 1955-12-30 | 1959-10-28 | Babcock & Wilcox Co | A method of forming a pad or blanket from inorganic wool fibers |
| CN1569306A (en) * | 2004-04-29 | 2005-01-26 | 山东工业陶瓷研究设计院 | Refractory ceramic filtering element for hot gas purification and method for preparing the same |
| CN101628195A (en) * | 2009-07-22 | 2010-01-20 | 河北理工大学 | High-temperature gas filter supporting body and preparation method thereof |
| CN103553704A (en) * | 2013-11-08 | 2014-02-05 | 武汉理工大学 | Method for preparing high-temperature dust removal ceramic filter pipe by utilizing andalusite |
| CN107670428A (en) * | 2017-10-19 | 2018-02-09 | 苏州红恩新材料科技有限公司 | A kind of screen pipe suitable for high-temperature dust-containing flue gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734461A (en) * | 2019-02-27 | 2019-05-10 | 盐城飞潮环保技术有限公司 | A kind of preparation method of pyroceram fibre screen pipe |
| CN109734461B (en) * | 2019-02-27 | 2022-06-07 | 江苏赛图新材料科技有限公司 | Preparation method of high-temperature-resistant ceramic fiber filter tube |
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| CN108892532B (en) | 2020-10-27 |
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