CN105951098B - A kind of preparation method of thermal power plant flue enamel plate - Google Patents
A kind of preparation method of thermal power plant flue enamel plate Download PDFInfo
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- CN105951098B CN105951098B CN201610274163.8A CN201610274163A CN105951098B CN 105951098 B CN105951098 B CN 105951098B CN 201610274163 A CN201610274163 A CN 201610274163A CN 105951098 B CN105951098 B CN 105951098B
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/02—Coating with enamels or vitreous layers by wet methods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
- C03C8/08—Frit compositions, i.e. in a powdered or comminuted form containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2207/00—Compositions specially applicable for the manufacture of vitreous enamels
- C03C2207/04—Compositions specially applicable for the manufacture of vitreous enamels for steel
Abstract
The present invention relates to a kind of preparation methods of thermal power plant flue enamel plate, enamel plate obtained has excellent chemical durability, rotproofness, thermal stability, suitable for having filled the firepower electrical plant flue inner wall of smoke wet method sulphur removing and dust removing processing, following steps are specifically included：Prepare frit for porcelain enamel：A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The raw material of the frit for porcelain enamel include glaze, quartz, borax, barium nitrate, clay and sodium nitrite；B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1200~1400 DEG C, melt 1~3h；C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, then pulls drying out, solidification obtains blocky frit；D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze slip can be made by the sieve of 40~80 mesh.
Description
Technical field
The present invention relates to board with enamel panel layer technique, especially a kind of preparation method of thermal power plant flue enamel plate is involved
And frit preparation method and production technology, enamel plate obtained has excellent chemical durability, rotproofness, heat steady
It is qualitative, suitable for having filled firepower electrical plant flue (chimney) inner wall of smoke wet method sulphur removing and dust removing processing.
Background technology
When previous thermal power plant does not have to desulfurization, chimney emission is not easy often in 200 DEG C or more of the condition of high temperature, barrel
Moisture condensation seldom forms condensation acid, therefore corrodes lighter.And it needs to carry out flue gas desulfurization processing, and this wet desulphurization now
Processing does not set the chimney of flue gas heating system, is formed by that moisture content of flue gas adopting is very high, and humidity is big, and temperature is low, the moisture condensation of flue gas
Phenomenon is very serious.What is formed after aqueous vapor moisture condensation in flue gas has corrosive aqueous solution, flows down to special along chimney madial wall
If leakage fluid dram be discharged in the waste liquid pool of desulphurization system, this aqueous solution is quite serious to the corrosion of inner wall of stack.It is being flowed through
When chimney wall, by chimney lining infiltration to chimney structure body, long-term corrosion is formed to structure, is even jeopardized when serious
To the safety of chimney, at the same it is also very serious to the corrosion of inner wall of stack.So how effectively, safety, economically solve chimney
Liner Anticorrosion, be that the sector is had to go to the toilet a problem to be solved.
Common single-cylinder type acidproof brick Anti-corrosive chimney has different degrees of corrosion after running a period of time,
The breakage of barrel liner, the destruction of insulating layer and the appearance in a large amount of cracks, make chimney resist the ability of flue gas corrosion significantly
It reduces, corrosion rate is also constantly being accelerated.After increasing wet desulphurization device, traditional chimney inside lining anti-corrosive material cannot be resisted by force
The weakness of corrosion more shows.
General requirement of the Wet Process of FGD Project to chimney anticorrosion material be:
1. not easily to fall off, anti-corrosion life is long.Since the antiseptic project of chimney is time-consuming, laborious, repair is inconvenient, therefore,
Anti-corrosion material service life is asked to grow, the non-maintaining period will be grown.
2. high temperature resistant, acidic mediums corrosive nature is good, can bear the impact of high-temperature flue gas in acidic environment for a long time.
3. good thermal shock stability can resist temperature rapid heat cycle and change brought heat fatigue.The failure of desulphurization plant can be led
Smoke directly ventilating, instantaneous temperature is caused to can reach 250 DEG C or more, this requires the ability that anti-corrosion material has stronger resistance to temperature change.
4. waterproof impervious characteristic is excellent, acid solution can be prevented further to permeate, concrete substrate is protected not invaded by acid solution.
For this purpose, my company gives full play to enamel technical advantage, high corrosion resistant flue (chimney) inner wall enamel plate, firepower hair are researched and developed
Power plant uses high corrosion resistant flue (chimney) inner wall enamel plate, can have for the highly corrosion resistant of flue gas, high temperature resistant, acidproof, resistance to
Alkaline energy.
Invention content
Present invention is generally directed to current enamel coating steel plates in the firepower electrical plant cigarette for having filled smoke wet method sulphur removing and dust removing processing
Chimney inner wall is perishable, the easy to wear and defect that easily softens, has invented a kind of preparation side of thermal power plant flue enamel plate
Method, the New enamel glaze that use is corrosion-resistant, wear-resistant, heatproof acute degeneration is excellent, in combination with the preparation process of improvement so that
Enamel surfaces have smooth fine and smooth, wear-resisting, the heat-resisting sudden turn of events, waterproof impervious characteristic by force etc. excellent performances.
The above-mentioned technical problem of the present invention is carried out by the following technical programs, a kind of thermal power plant flue use
The preparation method of enamel plate, which is characterized in that include the following steps：
(1) frit for porcelain enamel is prepared：
A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The former material of the frit for porcelain enamel
Material includes glaze, quartz, borax, barium nitrate, clay and sodium nitrite；
B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1200~1400 DEG C, melt 1~3h；
C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, then pulls drying out, solidification obtains
Blocky frit；
D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze can be made by the sieve of 40~80 mesh
Slurry；
(2) wet spray：The Enamel Slip that above-mentioned grinding is obtained on even application to steel plate, obtains enamel plate；
(3) it dries：At a temperature of enamel plate obtained above is placed in 100~120 DEG C, 20~60min is dried；
(4) finished product is fired：The enamel plate after drying is put into calcining kiln again, at a temperature of 860~880 DEG C, firing 8~
16min。
Preferably, the raw material for preparing frit for porcelain enamel are made of the compound of following mass parts：90~110 parts of glaze,
15~30 parts of quartz, 0.5~1.5 part of borax, 0.2~0.5 part of barium nitrate, 5~8 parts of clay, 0.1~0.5 part of sodium nitrite, water
40~55 parts.
Preferably, the raw material for preparing frit for porcelain enamel are made of the compound of following mass parts：100 parts of glaze, quartz
30 parts, 1 part of borax, 0.5 part of barium nitrate, 7 parts of clay, 0.5 part of sodium nitrite, 45 parts of water.
Preferably, the glaze be made of the compound of following mass percent：
Preferably, in the step c, the raw material being cooled to room temperature, after pulling out at a temperature of 100~120 DEG C, drying 2
~4min.
Preferably, in the step d, the dosage of clay is the 7% of clinker quality, and the dosage of water is the 44 of clinker quality
~55%.
Preferably, in the step (2), the Enamel Slip unit weight on even application to steel plate is 1.65~1.85g/
m2, porcelain thickness control is after firing between 170~300 μm.
One, the adjustment of glaze：
Due to the special use environment of this glaze, the most stringent aspect of the enamel plate requirement made be its corrosion resistance,
Heatproof acute degeneration and wearability, for this three aspect particular/special requirement we the proportioning of glaze is adjusted.
Glaze prepares the proportion that titanium dioxide and feldspar are increased in raw material, i.e., increases TiO in enamel proportioning2
Composition, largely promoted enamel corrosion resistance and chemical stability, in order to prevent titanium dioxide increase cause it is close
The influence reduced, C is slightly increasedOThe content of O and NiO.
Al2O3Composition increase, significantly improve the heat-resisting and wear-resisting property of enamel, therefore the proportion of raw material andesine increases.
Preparing suitably reduces the proportion of sodium nitrite in the raw material of frit for porcelain enamel, although reducing porcelain to a certain extent
The high temperature resistance of glaze, but reduce Na simultaneously2The introducing of O improves the softening temperature of enamel to a certain extent；It increases simultaneously
Quartzy SiO2Introduction volume promote the firing temperature of enamel so that enamel high temperature resistance and adherence be more outstanding.Quartzy SiO2
It is the component for influencing to generate the chemical durability and mechanical performance of enamel layer, it can significantly promote the softening temperature of enamel, from
And improve firing temperature.
It prepares in the raw material of frit for porcelain enamel and adds BaCO3, as the raw material for introducing BaO, BaO is to influence to generate enamel
The chemical durability of layer, the component of mechanical performance and coefficient of thermal expansion, are added BaCO3So that enamel plate has better heatproof anxious
Become performance.
Two, the adjustment of plate pre-treatment：
After glaze is made, the pre-treatment of flue (chimney) inner wall steel plate is also partially adjusted.In view of flue (cigarette
Chimney) inner wall is generally adopted by ART310 hot rolled steel plates, thickness 3mm, and normal pre-treating technology can to produce
It is quick-fried that squama occurs in enamel plate, does not meet customer demand.After considering two aspect of quality and productivity effect, before the present invention will be usual
Degreasing cylinder and hot acid cylinder in process for producing line are improved, it is ensured that the cleaning completely of steel plate pre-treatment rear surface oxide skin is dry
Only, and without any grease, harmful effect will not be caused to enamel firing.
Three, the adjustment of firing process：
For the adjustment of enamel formula, firing temperature is greatly improved spatial dimension, to ensure adherence and porcelain facing
Effect, firing temperature region are placed on 850-880 DEG C, and the time regards plate size in 7~16min.
In conclusion the present invention has the following advantages that compared with prior art：
The present invention is using the New enamel glaze corrosion-resistant, wear-resistant, heatproof acute degeneration is excellent, in combination with the system of improvement
Standby process so that enamel surfaces have smooth fine and smooth, wear-resisting, the heat-resisting sudden turn of events, the waterproof impervious characteristic excellent performances such as by force；Firepower is sent out
Power plant's high corrosion resistant flue (chimney) inner wall enamel plate using the present invention, can have for the highly corrosion resistant of flue gas, high temperature resistant,
Acidproof, alkaline resistance properties, be exposed to for a long time high temperature, high humility environment in, still can holding surface mechanical performance it is good；This
The enamel harden structure for inventing preparation is more reasonable, and light weight is convenient for installation and maintenance, at low cost, and heat exchange efficiency is low, service life
It is long.
Specific implementation mode
Technical scheme of the present invention is described further with reference to specific embodiment.
Embodiment 1：
A kind of thermal power plant flue preparation method of enamel plate, includes the following steps：
(1) frit for porcelain enamel is prepared：
A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The former material of the frit for porcelain enamel
The raw material that material prepares frit for porcelain enamel are made of the compound of following mass parts：100 parts of glaze, 30 parts of quartz, 1 part of borax, nitre
1 part of sour barium, 7 parts of clay, 0.5 part of sodium nitrite, 45 parts of water；Wherein, the glaze by following mass percent compound group
At：
B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1200 DEG C, melt 3h；
C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, the raw material being cooled to room temperature, fishing
After going out at a temperature of 100 DEG C, 4min is dried, solidification obtains blocky frit；
D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze can be made by the sieve of 40~80 mesh
Slurry；
(2) wet spray：On the Enamel Slip even application to steel plate that above-mentioned grinding is obtained, enamel plate is obtained, it is described
Enamel Slip unit weight is 1.65~1.85g/m2, porcelain thickness control is after firing between 170~300 μm；
(3) it dries：At a temperature of enamel plate obtained above is placed in 100 DEG C, 60min is dried；
(4) finished product is fired：The enamel plate after drying is put into calcining kiln again, at a temperature of 850 DEG C, fires 7min.
Embodiment 2：
A kind of thermal power plant flue preparation method of enamel plate, includes the following steps：
(1) frit for porcelain enamel is prepared：
A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The former material of the frit for porcelain enamel
The raw material that material prepares frit for porcelain enamel are made of the compound of following mass parts：100 parts of glaze, 30 parts of quartz, 1 part of borax, nitre
1 part of sour barium, 7 parts of clay, 0.5 part of sodium nitrite, 45 parts of water；Wherein, the glaze by following mass percent compound group
At：
B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1200 DEG C, melt 3h；
C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, the raw material being cooled to room temperature, fishing
After going out at a temperature of 100 DEG C, 4min is dried, solidification obtains blocky frit；
D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze can be made by the sieve of 40~80 mesh
Slurry；
(2) wet spray：On the Enamel Slip even application to steel plate that above-mentioned grinding is obtained, enamel plate is obtained, it is described
Enamel Slip unit weight is 1.65~1.85g/m2, porcelain thickness control is after firing between 170~300 μm；
(3) it dries：At a temperature of enamel plate obtained above is placed in 100 DEG C, 60min is dried；
(4) finished product is fired：The enamel plate after drying is put into calcining kiln again, at a temperature of 850 DEG C, fires 8min.
Embodiment 3：
A kind of thermal power plant flue preparation method of enamel plate, includes the following steps：
(1) frit for porcelain enamel is prepared：
A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The former material of the frit for porcelain enamel
The raw material that material prepares frit for porcelain enamel are made of the compound of following mass parts：100 parts of glaze, 30 parts of quartz, 1 part of borax, nitre
1 part of sour barium, 7 parts of clay, 0.5 part of sodium nitrite, 45 parts of water；Wherein, the glaze by following mass percent compound group
At：
B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1400 DEG C, melt 1h；
C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, the raw material being cooled to room temperature, fishing
After going out at a temperature of 120 DEG C, 2in is dried, solidification obtains blocky frit；
D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze can be made by the sieve of 40~80 mesh
Slurry；
(2) wet spray：On the Enamel Slip even application to steel plate that above-mentioned grinding is obtained, enamel plate is obtained, it is described
Enamel Slip unit weight is 1.65~1.85g/m2, porcelain thickness control is after firing between 170~300 μm；
(3) it dries：At a temperature of enamel plate obtained above is placed in 120 DEG C, 20min is dried；
(4) finished product is fired：The enamel plate after drying is put into calcining kiln again, at a temperature of 860 DEG C, fires 8min.
Embodiment 4：
A kind of thermal power plant flue preparation method of enamel plate, includes the following steps：
(1) frit for porcelain enamel is prepared：
A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The former material of the frit for porcelain enamel
The raw material that material prepares frit for porcelain enamel are made of the compound of following mass parts：100 parts of glaze, 30 parts of quartz, 1 part of borax, nitre
1 part of sour barium, 7 parts of clay, 0.5 part of sodium nitrite, 45 parts of water；Wherein, the glaze by following mass percent compound group
At：
B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1400 DEG C, melt 1h；
C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, the raw material being cooled to room temperature, fishing
After going out at a temperature of 120 DEG C, 2min is dried, solidification obtains blocky frit；
D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze can be made by the sieve of 40~80 mesh
Slurry；
(2) wet spray：On the Enamel Slip even application to steel plate that above-mentioned grinding is obtained, enamel plate is obtained, it is described
Enamel Slip unit weight is 1.65~1.85g/m2, porcelain thickness control is after firing between 170~300 μm；
(3) it dries：At a temperature of enamel plate obtained above is placed in 120 DEG C, 60min is dried；
(4) finished product is fired：The enamel plate after drying is put into calcining kiln again, at a temperature of 860 DEG C, fires 8min.
The test of performance indicator is carried out to the enamel plate that production obtains：The enamel plate that production obtains is placed on 350 DEG C of temperature
Under, heated at constant temperature 30 minutes is cooled to room temperature；After above-mentioned steps are repeated 5 times；Enamel plate does not split porcelain, pore-free, and table still
Face does not soften.
The thickness of enamel coating steel matrix steel plate is usually 2.8-3.0mm, and minimum thickness is not less than 2.8mm, and answers
Meet the requirement of engineering.
The standardized product of the present invention is suitable for having filled in the firepower electrical plant flue (chimney) of smoke wet method sulphur removing and dust removing processing
Wall is connect using chemical anchor bolts with the channel-section steel keel through epoxy resin antirust treatment mode, enamel plate and keel titanizing screw
Connection, junction are filled with high temperature-resistant acid-resistant washer, titanizing screw connection are also used between enamel plate.
For the special enamel plate of firepower electrical plant flue (chimney), using high temperature resistant >=300 DEG C, acidproof, weather-proof fluid sealant.
One, acidproof and spark test, resistance to 30% sulfuric acid of enamel coating boil 18 hours, erosion amount≤2g/m2.
Two, adherence, it is AA grades Filamentous.
Three, the heatproof sudden turn of events, 350 DEG C of the heatproof sudden turn of events, 5 flawlesses；Heatproof shock property test is carried out, if without burst porcelain, instead
Progress 5 times is tested in retrial；Flawless is without burst porcelain after 5 tests.
Four, wear-resisting, 167 μm of porcelain thickness, ceramic wear-resisting test machine 30min, loss quality 11g/m2。
1 enamelled pressed steel surfaces externally and internally enamel porcelain thickness unit of table is millimeter
2 enamelled pressed steel surface enamel coating quality of table
3 enamel coating surface tear of table and abrasive allowable range
| Project | It is required that | Detection method |
| Scratch depth | No more than surface treatment thickness | Visual observations |
| Scratch total length, mm | ≤30 | Steel ruler |
| Abrade the gross area, mm2 | ≤300 | Steel ruler |
| It scratches, the total place's number of scratch | ≤4 | Visual observations |
4 enamelled pressed steel physicochemical property table of table
Test method presses standard JG/T234-2008《Architectural decoration enamelled pressed steel》
Enamel coating surface of steel plate is brittleness body, and the storage of product is critically important, should prevent the impact of weight and hard object.Storage
Pile is unsuitable excessively high when depositing, and avoids contacting with hazardous medium.
Specific embodiments are merely illustrative of the spirit of the present invention described in text.The technical field of the invention
Technical staff can make various modifications or additions to the described embodiments or substitute by a similar method,
However, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (6)
1. a kind of preparation method of thermal power plant flue enamel plate, which is characterized in that include the following steps：
(1) frit for porcelain enamel is prepared：
A, mixed raw material：The raw material for preparing frit for porcelain enamel are uniformly mixed in aqueous solvent；The raw material packet of the frit for porcelain enamel
Include glaze, quartz, borax, barium nitrate, clay and sodium nitrite；
B, it is melted：Uniformly mixed above-mentioned raw materials are put into crucible, at a temperature of 1200~1400 DEG C, melt 1~3h；
C, Quench：It will be rapidly cooled to room temperature in raw material input water after above-mentioned fusing, then pulls drying out, solidification obtains bulk
Frit；
D, ball milling：Frit, clay and water are added in ball mill and is ground to and glaze slip can be made by the sieve of 40~80 mesh；
(2) wet spray：The Enamel Slip that above-mentioned grinding is obtained on even application to steel plate, obtains enamel plate；
(3) it dries：At a temperature of enamel plate obtained above is placed in 100~120 DEG C, 20~60min is dried；
(4) finished product is fired：The enamel plate after drying is put into calcining kiln again, at a temperature of 860~880 DEG C, firing 8~
16min；The glaze is made of the compound of following mass percent：
2. the preparation method of flue enamel plate in thermal power plant according to claim 1, which is characterized in that prepare enamel
The raw material of glaze are made of the compound of following mass parts：90~110 parts of glaze, 15~30 parts of quartz, borax 0.5~1.5
Part, 0.2~0.5 part of barium nitrate, 5~8 parts of clay, 0.1~0.5 part of sodium nitrite, 40~55 parts of water.
3. the preparation method of flue enamel plate in thermal power plant according to claim 2, which is characterized in that prepare enamel
The raw material of glaze are made of the compound of following mass parts：100 parts of glaze, 30 parts of quartz, 1 part of borax, 0.5 part of barium nitrate,
7 parts of clay, 0.5 part of sodium nitrite, 45 parts of water.
4. the preparation method of flue enamel plate in thermal power plant according to claim 1, which is characterized in that the step
In c, the raw material being cooled to room temperature dries 2~4min after pulling out at a temperature of 100~120 DEG C.
5. the preparation method of flue enamel plate in thermal power plant according to claim 1, which is characterized in that the step
In d, the dosage of clay is the 7% of clinker quality, and the dosage of water is the 44~55% of clinker quality.
6. the preparation method of flue enamel plate in thermal power plant according to claim 1, which is characterized in that the step
(2) in, the Enamel Slip unit weight on even application to steel plate is 1.65~1.85g/m2, porcelain thickness control is 170 after firing
Between~300 μm.
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| CN108249762A (en) * | 2018-03-23 | 2018-07-06 | 深圳市金合联供应链技术有限公司 | A kind of grate high acid-proof cast iron Enamel Slip and preparation method thereof |
| CN110172697A (en) * | 2019-06-11 | 2019-08-27 | 东阳市优越日用品有限公司 | A kind of manufacture craft of enamel rustless steel warmer |
| CN112661408A (en) * | 2020-12-28 | 2021-04-16 | 立丰家庭用品（南京）有限公司 | Electrostatic enamel powder, preparation method of electrostatic enamel powder and preparation device of electrostatic enamel powder |
| CN114214625A (en) * | 2021-12-22 | 2022-03-22 | 浙江开尔新材料股份有限公司 | Inner enamel pipe and preparation method thereof |
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| JPH0488177A (en) * | 1990-07-31 | 1992-03-23 | Ngk Insulators Ltd | Porcelain enamel product and its production |
| CN1924440A (en) * | 2006-09-11 | 2007-03-07 | 邢翰学 | Inner wall anticorrosive board for moisture chimney flue and moisture chimney flue |
| CN102181862A (en) * | 2011-04-12 | 2011-09-14 | 浙江开尔新材料股份有限公司 | Preparation method of enameled steel sheet |
| CN102219383A (en) * | 2011-04-12 | 2011-10-19 | 浙江开尔新材料股份有限公司 | Enamel glaze material |
| CN102392245A (en) * | 2011-11-24 | 2012-03-28 | 昆山美邦搪瓷有限公司 | Enamelling method of enamel heat transfer element |
| CN203654852U (en) * | 2013-11-22 | 2014-06-18 | 浙江开尔新材料股份有限公司 | Corrosion resistant chimney inner wall steel inner cylinder for thermal power plant |
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Application publication date: 20160921 Assignee: Zhejiang Kaier Environmental Technology Co.,Ltd. Assignor: ZHEJIANG KAIER NEW MATERIALS Co.,Ltd. Contract record no.: X2023980042335 Denomination of invention: A preparation method of enamel plate for flue gas in thermal power plants Granted publication date: 20180727 License type: Common License Record date: 20230924 |
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