CN109456073A - A kind of patching material in burner hearth gap and the method for repairing burner hearth gap with it - Google Patents
A kind of patching material in burner hearth gap and the method for repairing burner hearth gap with it Download PDFInfo
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- CN109456073A CN109456073A CN201811583989.8A CN201811583989A CN109456073A CN 109456073 A CN109456073 A CN 109456073A CN 201811583989 A CN201811583989 A CN 201811583989A CN 109456073 A CN109456073 A CN 109456073A
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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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
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- 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
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- 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
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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- 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
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3229—Cerium oxides or oxide-forming salts thereof
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- 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
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract
The invention discloses the patching material for providing a kind of burner hearth gap and the method for repairing burner hearth gap with it, the patching material is made of following components in parts by weight: 30~38 parts of high-temp glue, 35~40 parts of ceramic fibre, 26~30 parts of aluminium oxide ceramics powder；The high-temp glue is made of following components in parts by weight: 80~90 parts of aluminum phosphate, 200~210 parts of alumina silicate, 65~75 parts of zirconium oxide, 20~23 parts of cerium oxide, 15~17 parts of yttrium oxide, 2~16 parts of phosphatase 11,8~10 parts of water；Solidified in the method for repairing and mending using quick-setting surface curing agent；The surface curing agent is made of following components in parts by weight: 80~100 parts of dicyandiamide, 50~60 parts of fatty glycidyl ether, 40~50 parts of titanium dioxide of micronization.The beneficial effects of the present invention are: the burner hearth thermal insulation property and insulation performance after repairing by the method for the invention all greatly promote, it ensure that the accuracy of its temperature control, extend the service life of burner hearth and complete machine.
Description
Technical field
The present invention relates to heating furnace technical fields, more particularly to a kind of for repairing the repairing in ceramic fibre burner hearth gap
Material and the method for repairing burner hearth gap with it.
Background technique
High-temperature heater is the weight for being widely used in the various fields such as ceramics, glass, powder metallurgy, chemical industry, machinery, the energy
It tests and production equipment.High-temperature heater heats workpiece as heat source by heat caused by conductor using electric current, mainly
It is made of several majors such as furnace body, heater, temperature-controlling systems, and furnace body is usually to be made of burner hearth, insulating layer and metal shell,
Burner hearth is internally provided with heater element.Burner hearth washes away the protective layer with slag action as the direct high temperature gas flow that bears, usually by
Various refractory materials are formed through masonry, ramming or casting.During production application, if there is cracking, gap in burner hearth
Deng, will make its heat preservation and insulation performance have a greatly reduced quality；If cracking or badly broken, needs to remove burner hearth monolith and replace, take
When it is laborious.
Summary of the invention
In order to solve the above technical problems, being repaired the object of the present invention is to provide a kind of patching material in burner hearth gap and with it
The method in burner hearth gap improves the heat insulating ability, absolutely of ceramic fibre burner hearth suitable for repairing the crack or gap of ceramic fibre burner hearth
Edge and service life.
In view of the above-mentioned problems, one technical scheme adopted by the invention is that: a kind of patching material in burner hearth gap is provided,
It is characterized in that, is made of following components in parts by weight: 30~38 parts of high-temp glue, 35~40 parts of ceramic fibre, aluminium oxide ceramics powder
26~30 parts.
Preferably, the patching material the preparation method comprises the following steps: by high-temp glue be put into emulsion dispersion machine stir 30min after,
Ceramic fibre and aluminium oxide ceramics powder are added according to the ratio, continues stirring 20 minutes, revolving speed is 10 turns/min, completes patching material
It prepares, the emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, then takes out patching material with appearance
Device filling and sealing is placed in subzero 60 DEG C of environment and saves backup.
Preferably, the high-temp glue is made of following components in parts by weight: 80~90 parts of aluminum phosphate, alumina silicate 200~210
Part, 65~75 parts of zirconium oxide, 20~23 parts of cerium oxide, 15~17 parts of yttrium oxide, 2~16 parts of phosphatase 11,8~10 parts of water.
Preferably, the high-temp glue the preparation method comprises the following steps: at room temperature, being put into cream after raw material is weighed in proportion
Change dispersion machine to be stirred, mixing time is 30 minutes, and revolving speed is 30 turns/min, the emulsion dispersion machine double-layer glass vessel
And external cooling cooling water circulation.
Utilize the method in above-mentioned patching material repairing burner hearth gap, comprising the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: first burning burner hearth sky to shutdown after 60 DEG C and power off, and the dust and impurities at damaged or gap are clear
Reason is clean；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage face
The size of long-pending size or burner hearth gap takes appropriate patching material to be filled repairing, at filling and repairing to breakage or gap
Patching material is just no longer used after flushing with burner hearth integral planar, and the surface curing agent to have thawed is uniformly brushed with hairbrush and is being repaired
Place brushes thickness in 0.8~1.3mm, and interval repeats brushing once after ten minutes, completes what surface curing agent twice was brushed
After 30min, fire door is shut；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, to be not higher than the heating rate pair of 10 DEG C/min
Burner hearth carries out staged heating, keeps the temperature after being warming up to not higher than 1700 DEG C temperature, is then naturally cooling to room temperature, completes repairing.
Preferably, the heating mode in the step S4 are as follows: kept the temperature after first rising to 80 DEG C with the heating rate of 5 DEG C/min
Then 5h is risen to after 120 DEG C again with the heating rate of 5 DEG C/min and protects 2h, then after rising to 200 DEG C with the heating rate of 4 DEG C/min
3h is kept the temperature, then 300 DEG C of heat preservation 1h are risen to the heating rate of 4 DEG C/min, then 800 DEG C of guarantors are risen to the heating rate of 3 DEG C/min
Warm 5h, then risen to after 1250 DEG C with the heating rate of 2 DEG C/min and keep the temperature 2h, then rise to 1400 DEG C with the heating rate of 1 DEG C/min
After keep the temperature 3h, then risen to after 1680 DEG C with the heating rate of 1 DEG C/min and keep the temperature 2h, be then naturally cooling to room temperature, complete repairing.
Preferably, the surface curing agent is made of following components in parts by weight: 80~100 parts of dicyandiamide of micronization, rouge
50~60 parts of fat glycidol ether, 40~50 parts of titanium dioxide.
Preferably, the surface curing agent the preparation method comprises the following steps: under room temperature, being placed in after raw material is weighed according to the ratio
In container, 10min, 20 turns/min of mixing speed are stirred, completes that surface curing agent is placed in subzero 60 DEG C of low temperature rings after stirring
It is saved backup under border.
The beneficial effects of the present invention are: 1, by the method for the invention repair after burner hearth thermal insulation property and insulation performance it is all big
It is big to be promoted, it ensure that the accuracy of its temperature control；2, replacement is removed without burner hearth monolith, save working hour and extends burner hearth and whole
The service life of machine；3, the temperature-resistant material can high temperature resistant to 1700 DEG C, more preferably compared to conventional its high temperature resistance of high-temp glue；
4, conventional surface curing agent needs could complete solidification at a temperature of 80 DEG C after 1 hour, and surface curing agent of the invention exists
Solidification can be completed in 30min under normal temperature condition, and curing rate and curing performance all greatly promote；5, raw material is cheap, easy to use.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1
A kind of patching material in burner hearth gap, is made of following components in parts by weight: 30 parts of high-temp glue, ceramic fibre 40
Part, 30 parts of aluminium oxide ceramics powder.
The preparation method of above-mentioned patching material are as follows: at room temperature, by 90 parts of aluminum phosphate, 210 parts of alumina silicate, zirconium oxide
75 parts, 20 parts of cerium oxide, 15 parts of yttrium oxide, 2 parts of phosphatase 11,8 parts of water weigh after be put into emulsion dispersion machine and be stirred preparation,
Mixing time 30 minutes, revolving speed was 30 turns/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, system
At high-temp glue；After high-temp glue is stirred 30min, ceramic fibre and aluminium oxide ceramics powder are added according to the ratio, continues stirring 20 minutes,
Revolving speed is 10 turns/min, completes patching material and prepares, then seals patching material taking-up with container filling, be placed in subzero 60
The heat preservation of DEG C environment is spare.
Utilize the method in above-mentioned patching material repairing burner hearth gap, comprising the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: first burning burner hearth sky to shutdown after 60 DEG C and power off, and the dust and impurities at damaged or gap are clear
Reason is clean；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage face
The size of long-pending size or burner hearth gap takes appropriate patching material to be filled repairing, at filling and repairing to breakage or gap
Patching material is just no longer used after flushing with burner hearth integral planar, and the surface curing agent to have thawed is uniformly brushed with hairbrush and is being repaired
Place, for brushing thickness in 1mm, interval repeats brushing once after ten minutes, after completing the 30min of surface curing agent brushing twice, closes
Good fire door；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, 80 DEG C are risen to the heating rate of 5 DEG C/min
After keep the temperature 5h, then risen to after 120 DEG C with the heating rate of 5 DEG C/min again and protect 2h, then risen to the heating rate of 4 DEG C/min
3h is kept the temperature after 200 DEG C, then 300 DEG C of heat preservation 1h is risen to the heating rate of 4 DEG C/min, then rise to the heating rate of 3 DEG C/min
800 DEG C of heat preservation 5h, then risen to after 1250 DEG C with the heating rate of 2 DEG C/min and keep the temperature 2h, then risen to the heating rate of 1 DEG C/min
3h is kept the temperature after 1400 DEG C, then is risen to after 1680 DEG C with the heating rate of 1 DEG C/min and keeps the temperature 2h, is then naturally cooling to room temperature, it is complete
At repairing.
Above-mentioned surface curing agent the preparation method comprises the following steps: under room temperature, 100 parts of dicyandiamide will be micronized, fat shrinks sweet
60 parts of oily ether, 50 parts of titanium dioxide weigh merging emulsion dispersion machine afterwards and are stirred preparation, mixing time 10min, mixing speed
20 turns/min, surface curing agent is made in emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, completes stirring
Surface curing agent is placed under subzero 60 DEG C of low temperature environments afterwards and is saved backup.
Embodiment 2
A kind of patching material in burner hearth gap, is made of following components in parts by weight: 34 parts of high-temp glue, ceramic fibre 35
Part, 28 parts of aluminium oxide ceramics powder.
The preparation method of above-mentioned patching material are as follows: at room temperature, by 85 parts of aluminum phosphate, 205 parts of alumina silicate, zirconium oxide
70 parts, 22 parts of cerium oxide, 16 parts of yttrium oxide, 4 parts of phosphatase 11,9 parts of water weigh after be put into emulsion dispersion machine and be stirred preparation,
Mixing time 30 minutes, revolving speed was 30 turns/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, system
At high-temp glue；After high-temp glue is stirred 30min, ceramic fibre and aluminium oxide ceramics powder are added according to the ratio, continues stirring 20 minutes,
Revolving speed is 10 turns/min, completes patching material and prepares, then seals patching material taking-up with container filling, be placed in subzero 60
The heat preservation of DEG C environment is spare.
Utilize the method in above-mentioned patching material repairing burner hearth gap, comprising the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: first burning burner hearth sky to shutdown after 60 DEG C and power off, and the dust and impurities at damaged or gap are clear
Reason is clean；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage face
The size of long-pending size or burner hearth gap takes appropriate patching material to be filled repairing, at filling and repairing to breakage or gap
Patching material is just no longer used after flushing with burner hearth integral planar, and the surface curing agent to have thawed is uniformly brushed with hairbrush and is being repaired
Place, for brushing thickness in 1mm, interval repeats brushing once after ten minutes, after completing the 30min of surface curing agent brushing twice, closes
Good fire door；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, 80 DEG C are risen to the heating rate of 5 DEG C/min
After keep the temperature 5h, then risen to after 120 DEG C with the heating rate of 5 DEG C/min again and protect 2h, then risen to the heating rate of 4 DEG C/min
3h is kept the temperature after 200 DEG C, then 300 DEG C of heat preservation 1h is risen to the heating rate of 4 DEG C/min, then rise to the heating rate of 3 DEG C/min
800 DEG C of heat preservation 5h, then risen to after 1250 DEG C with the heating rate of 2 DEG C/min and keep the temperature 2h, then risen to the heating rate of 1 DEG C/min
3h is kept the temperature after 1400 DEG C, then is risen to after 1680 DEG C with the heating rate of 1 DEG C/min and keeps the temperature 2h, is then naturally cooling to room temperature, it is complete
At repairing.
Above-mentioned surface curing agent the preparation method comprises the following steps: under room temperature, 90 parts of dicyandiamide will be micronized, fatty glycidyl
55 parts of ether, 45 parts of titanium dioxide weigh merging emulsion dispersion machine afterwards and are stirred preparation, mixing time 10min, mixing speed 20
Turn/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, surface curing agent is made, after completing stirring
Surface curing agent is placed under subzero 60 DEG C of low temperature environments and is saved backup.
Embodiment 3
A kind of patching material in burner hearth gap, is made of following components in parts by weight: 38 parts of high-temp glue, ceramic fibre 37
Part, 26 parts of aluminium oxide ceramics powder.
The preparation method of above-mentioned patching material are as follows: at room temperature, by 80 parts of aluminum phosphate, 200 parts of alumina silicate, zirconium oxide
65 parts, 20 parts of cerium oxide, 17 parts of yttrium oxide, 6 parts of phosphatase 11,10 parts of water weigh after be put into emulsion dispersion machine and be stirred preparation,
Mixing time 30 minutes, revolving speed was 30 turns/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, system
At high-temp glue；After high-temp glue is stirred 30min, ceramic fibre and aluminium oxide ceramics powder are added according to the ratio, continues stirring 20 minutes,
Revolving speed is 10 turns/min, completes patching material and prepares, then seals patching material taking-up with container filling, be placed in subzero 60
The heat preservation of DEG C environment is spare.
Utilize the method in above-mentioned patching material repairing burner hearth gap, comprising the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: first burning burner hearth sky to shutdown after 60 DEG C and power off, and the dust and impurities at damaged or gap are clear
Reason is clean；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage face
The size of long-pending size or burner hearth gap takes appropriate patching material to be filled repairing, at filling and repairing to breakage or gap
Patching material is just no longer used after flushing with burner hearth integral planar, and the surface curing agent to have thawed is uniformly brushed with hairbrush and is being repaired
Place, for brushing thickness in 1mm, interval repeats brushing once after ten minutes, after completing the 30min of surface curing agent brushing twice, closes
Good fire door；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, 80 DEG C are risen to the heating rate of 5 DEG C/min
After keep the temperature 5h, then risen to after 120 DEG C with the heating rate of 5 DEG C/min again and protect 2h, then risen to the heating rate of 4 DEG C/min
3h is kept the temperature after 200 DEG C, then 300 DEG C of heat preservation 1h is risen to the heating rate of 4 DEG C/min, then rise to the heating rate of 3 DEG C/min
800 DEG C of heat preservation 5h, then risen to after 1250 DEG C with the heating rate of 2 DEG C/min and keep the temperature 2h, then risen to the heating rate of 1 DEG C/min
3h is kept the temperature after 1400 DEG C, then is risen to after 1680 DEG C with the heating rate of 1 DEG C/min and keeps the temperature 2h, is then naturally cooling to room temperature, it is complete
At repairing.
Above-mentioned surface curing agent the preparation method comprises the following steps: under room temperature, 80 parts of dicyandiamide will be micronized, fatty glycidyl
50 parts of ether, 40 parts of titanium dioxide weigh merging emulsion dispersion machine afterwards and are stirred preparation, mixing time 10min, mixing speed 20
Turn/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, surface curing agent is made, after completing stirring
Surface curing agent is placed under subzero 60 DEG C of low temperature environments and is saved backup.
Comparative example 1
A kind of patching material in burner hearth gap, is made of following components in parts by weight: 40 parts of high-temp glue, ceramic fibre 60
Part.
The preparation method of above-mentioned patching material are as follows: at room temperature, by 50 parts of aluminum phosphate, 100 parts of alumina silicate, three are aoxidized
Two 115 parts of aluminium, 17 parts of yttrium oxide, 3 parts of phosphoric acid, 6 parts of water weigh after be put into emulsion dispersion machine and be stirred preparation, mixing time
30 minutes, revolving speed was 30 turns/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, and high temperature is made
Glue；After high-temp glue is stirred 30min, ceramic fibre is added according to the ratio, continues stirring 20 minutes, revolving speed is 10 turns/min, is completed
Patching material is prepared, and then seals patching material taking-up with container filling, and it is spare to be placed in subzero 60 DEG C of environment heat preservation.
Utilize the method in above-mentioned patching material repairing burner hearth gap, comprising the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: the dust and impurities at damaged or gap are cleaned out；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage face
The size of long-pending size or burner hearth gap takes appropriate patching material to be filled repairing, at filling and repairing to breakage or gap
Patching material is just no longer used after flushing with burner hearth integral planar, and the surface curing agent to have thawed is uniformly brushed with hairbrush and is being repaired
Place, for brushing thickness in 0.5mm, interval repeats brushing once after ten minutes, after completing the 30min of surface curing agent brushing twice,
Shut fire door；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, 80 DEG C are risen to the heating rate of 5 DEG C/min
After keep the temperature 6h, then risen to after 100 DEG C with the heating rate of 5 DEG C/min again and protect 2h, then risen to the heating rate of 4 DEG C/min
1h is kept the temperature after 300 DEG C, then 300 DEG C of heat preservation 1h is risen to the heating rate of 4 DEG C/min, then rise to the heating rate of 3 DEG C/min
800 DEG C of heat preservation 2h, then risen to after 1250 DEG C with the heating rate of 2 DEG C/min and keep the temperature 2h, then risen to the heating rate of 1 DEG C/min
3h is kept the temperature after 1500 DEG C, is then naturally cooling to room temperature, completes repairing.
Above-mentioned surface curing agent the preparation method comprises the following steps: under room temperature, 100 parts of dicyandiamide will be micronized, fat shrinks sweet
60 parts of oily ether, 50 parts of titanium dioxide weigh merging emulsion dispersion machine afterwards and are stirred preparation, mixing time 10min, mixing speed
20 turns/min, surface curing agent is made in emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, completes stirring
Surface curing agent is placed under subzero 60 DEG C of low temperature environments afterwards and is saved backup.
Comparative example 2
After big gap or appearance breakage occurs in above-mentioned burner hearth, equipment operational safety and equipment user's safety are not being influenced
In the case where, gap and breakage are not handled or repaired to continue to use and makes comparison.
Comparative example 3
A kind of patching material in burner hearth gap, is made of following components in parts by weight: 40 parts of high-temp glue, ceramic fibre 60
Part.
The preparation method of above-mentioned patching material are as follows: at room temperature, 2 parts of aluminium hydroxide, 2 parts of sodium tungstate, three oxidations two
15 parts of aluminium, 2 parts of zirconium oxide, 50 parts of copper oxide, 7 parts of phosphatase 11, it is put into emulsion dispersion machine after weighing and is stirred preparation, stirs
Time 30 minutes, revolving speed was 30 turns/min, emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, and height is made
Warm glue；After high-temp glue is stirred 30min, ceramic fibre is added according to the ratio, continues stirring 20 minutes, revolving speed is 10 turns/min, complete
It prepares at patching material, then seals patching material taking-up with container filling, it is spare to be placed in subzero 60 DEG C of environment heat preservation.
Utilize the method in above-mentioned patching material repairing burner hearth gap, comprising the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: first the dust and impurities at damaged or gap are cleaned out；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage face
The size of long-pending size or burner hearth gap takes appropriate patching material to be filled repairing, at filling and repairing to breakage or gap
Patching material is just no longer used after flushing with burner hearth integral planar, and the surface curing agent to have thawed is uniformly brushed with hairbrush and is being repaired
Place, for brushing thickness in 0.5mm, interval repeats brushing once after ten minutes, after completing the 30min of surface curing agent brushing twice,
Shut fire door；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, 80 DEG C are risen to the heating rate of 5 DEG C/min
After keep the temperature 6h, then risen to after 100 DEG C with the heating rate of 5 DEG C/min again and protect 2h, then risen to the heating rate of 4 DEG C/min
1h is kept the temperature after 300 DEG C, then 300 DEG C of heat preservation 1h is risen to the heating rate of 4 DEG C/min, then rise to the heating rate of 3 DEG C/min
600 DEG C of heat preservation 2h, then risen to after 1150 DEG C with the heating rate of 2 DEG C/min and keep the temperature 2h, then risen to the heating rate of 1 DEG C/min
3h is kept the temperature after 1300 DEG C, is then naturally cooling to room temperature, completes repairing.
Above-mentioned surface curing agent the preparation method comprises the following steps: under room temperature, 100 parts of dicyandiamide will be micronized, fat shrinks sweet
60 parts of oily ether, 50 parts of titanium dioxide weigh merging emulsion dispersion machine afterwards and are stirred preparation, mixing time 10min, mixing speed
20 turns/min, surface curing agent is made in emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation, completes stirring
Surface curing agent is placed under subzero 60 DEG C of low temperature environments afterwards and is saved backup.
Above-mentioned heat insulating ability, insulating properties, operating life data by repairing rear hearth is tested, it is tabulated below.
| Product number | Burner hearth limit heatproof | Breakdown voltage | Service life |
| Embodiment 1 | 1710℃ | 8000V/mm | 6 years |
| Embodiment 2 | 1680℃ | 6000V/mm | 6 years |
| Embodiment 3 | 1650℃ | 7500V/mm | 6 years |
| Comparative example 1 | 1600℃ | 5000V/mm | 5 years |
| Comparative example 2 | 1600℃ | 6500V/mm | 4 years |
| Comparative example 2 | 1400℃ | 5800V/mm | 5 years |
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and appearance is applied directly or indirectly in other relevant technologies necks pair
Domain is included within the scope of the present invention.
Claims (8)
1. a kind of patching material in burner hearth gap, which is characterized in that be made of following components in parts by weight: high-temp glue 30~38
Part, 35~40 parts of ceramic fibre, 26~30 parts of aluminium oxide ceramics powder.
2. a kind of patching material in burner hearth gap according to claim 1, which is characterized in that the preparation of the patching material
Method are as follows: high-temp glue is put into after stirring 30min in emulsion dispersion machine, ceramic fibre and aluminium oxide ceramics powder are added according to the ratio,
Continue stirring 20 minutes, revolving speed is 10 turns/min, completes the preparation of patching material, the emulsion dispersion machine double-layer glass vessel
And external cooling cooling water circulation, patching material taking-up is sealed with container filling then, subzero 60 DEG C of environment is placed in and saves
It is spare.
3. a kind of patching material in burner hearth gap according to claim 1, which is characterized in that the high-temp glue is by following heavy
The component of amount part is made: 80~90 parts of aluminum phosphate, 200~210 parts of alumina silicate, and 65~75 parts of zirconium oxide, 20~23 parts of cerium oxide,
15~17 parts of yttrium oxide, 2~16 parts of phosphatase 11,8~10 parts of water.
4. a kind of patching material in burner hearth gap according to claim 3, which is characterized in that the preparation side of the high-temp glue
Method are as follows: at room temperature, be put into emulsion dispersion machine after raw material is weighed in proportion and be stirred, mixing time is 30 points
Clock, revolving speed are 30 turns/min, the emulsion dispersion machine double-layer glass vessel and external cooling cooling water circulation.
5. utilizing the method in above-mentioned patching material repairing burner hearth gap, which comprises the following steps:
S1 patching material thaws；
S2 surface curing agent thaws；
The cleaning of S2 burner hearth: first burning burner hearth sky to shutdown after 60 DEG C and power off, and the dust and impurities at damaged or gap is cleared up dry
Only；
S3 burner hearth gap repairing: step S1 was completed in 1 hour, step S2 is completed in 30min, according to burner hearth breakage area
Size or the size in burner hearth gap take appropriate patching material to be filled repairing, with furnace at filling and repairing to breakage or gap
Thorax integral planar just no longer uses patching material after flushing, and the surface curing agent to have thawed is uniformly brushed with hairbrush in mend,
Thickness is brushed in 0.8~1.3mm, interval repeats brushing once after ten minutes, completes the 30min that surface curing agent is brushed twice
Afterwards, fire door is shut；
S4 heating dumping: after the completion of above-mentioned steps S3, since room temperature, with the heating rate not higher than 10 DEG C/min to burner hearth
Staged heating is carried out, is kept the temperature after being warming up to not higher than 1700 DEG C temperature, room temperature is then naturally cooling to, completes repairing.
6. the method in repairing burner hearth gap according to claim 5, which is characterized in that the heating mode in the step S4
Are as follows: it is first risen to after 80 DEG C with the heating rate of 5 DEG C/min and keeps the temperature 5h, after then rising to 120 DEG C again with the heating rate of 5 DEG C/min
2h is protected, then is risen to after 200 DEG C with the heating rate of 4 DEG C/min and keeps the temperature 3h, then 300 DEG C of guarantors are risen to the heating rate of 4 DEG C/min
Warm 1h, then 800 DEG C of heat preservation 5h are risen to the heating rate of 3 DEG C/min, then protect after rising to 1250 DEG C with the heating rate of 2 DEG C/min
Warm 2h, then risen to after 1400 DEG C with the heating rate of 1 DEG C/min and keep the temperature 3h, then rise to 1680 DEG C with the heating rate of 1 DEG C/min
After keep the temperature 2h, be then naturally cooling to room temperature, complete repairing.
7. the method in repairing burner hearth gap according to claim 5, which is characterized in that the surface curing agent is by following heavy
The component of amount part is made: 80~100 parts of dicyandiamide, 50~60 parts of fatty glycidyl ether, 40~50 parts of titanium dioxide of micronization.
8. the method in repairing burner hearth gap according to claim 7, which is characterized in that the preparation side of the surface curing agent
Method are as follows: under room temperature, raw material is weighed according to the ratio and is placed in container afterwards, stirs 10min, mixing speed 20 turns/min, it is complete
It is saved backup at surface curing agent is placed under subzero 60 DEG C of low temperature environments after stirring.
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