CN105951098A - Preparation method of enamel plate for flue of thermal power plant - Google Patents
Preparation method of enamel plate for flue of thermal power plant Download PDFInfo
- Publication number
- CN105951098A CN105951098A CN201610274163.8A CN201610274163A CN105951098A CN 105951098 A CN105951098 A CN 105951098A CN 201610274163 A CN201610274163 A CN 201610274163A CN 105951098 A CN105951098 A CN 105951098A
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- China
- Prior art keywords
- enamel
- glaze
- flue
- parts
- frit
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Classifications
-
- 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 invention relates to a preparation method of an enamel plate for a flue of a thermal power plant. The enamel plate prepared through the method has excellent chemical durability, corrosion resistance and thermal stability and is suitable for the inner wall, where a smoke wet desulphurization and dedusting treatment device is installed, of the flue the thermal power plant. The preparation method specifically comprises the following steps that enamel glaze is prepared, specifically, a, raw materials are mixed, the raw materials for preparing the enamel glaze are evenly mixed in solvent water, and the raw materials of the enamel glaze include glaze, quartz, borax, barium nitrate, clay and sodium nitrite; b, melting is conducted, the raw materials which are evenly mixed are placed in a crucible and melted for 1-3 hours at the temperature of 1200-1400 DEG C; c, chilling is conducted, the melted raw materials are placed in water and rapidly cooled to the room temperature and then fished out to be dried, and the raw materials are solidified, so that blocky frit is obtained; and d, ball milling is conducted, the frit, clay and water are added into a ball mill to be ground till the mixture can pass through a sieve with 40-80 meshes, and glaze slip is prepared.
Description
Technical field
The present invention relates to board with enamel panel layer technique, the preparation method of a kind of thermal power plant flue enamel plate, involved
And the preparation method of frit and production technology, it is steady that prepared enamel plate has the chemical durability of excellence, rotproofness, heat
Qualitative, it is adaptable to have filled firepower electrical plant flue (chimney) inwall that smoke wet method sulphur removing and dust removing processes.
Background technology
When in the past thermal power plant is without desulfurization, chimney emission is often in the condition of high temperature of more than 200 DEG C, and barrel is difficult to
Condensation, seldom forms condensation acid, therefore corrodes lighter.And need now to carry out flue gas desulfurization process, and this wet desulphurization
Processing the chimney not setting flue gas heating system, the moisture content of flue gas adopting formed is the highest, high humidity, and temperature is low, the condensation of flue gas
Phenomenon is the most serious.Formed after aqueous vapor condensation in flue gas has corrosive aqueous solution, flows down to specially along chimney medial wall
If leakage fluid dram be discharged in the waste liquid pool of desulphurization system, this aqueous solution is the most serious to the corrosion of inner wall of stack.It is flowing through
During chimney wall, by chimney lining infiltration to chimney structure body, structure is formed long-term corrosion, even jeopardizes time serious
To the safety of chimney, the corrosion to inner wall of stack is the most serious simultaneously.The most effectively, chimney is solved safely, economically
The Anticorrosion of liner, be a problem anxious to be resolved in the sector.
Common single-cylinder type acidproof brick Anti-corrosive chimney, after running a period of time, all has corrosion in various degree to occur,
The breakage of barrel liner, the destruction of heat-insulation layer and the appearance in a large amount of crack, make chimney resist the ability of flue gas corrosion significantly
Reducing, corrosion rate is also constantly being accelerated.After increasing wet desulphurization device, tradition chimney inside lining anti-corrosive material can not be resisted by force
The weakness of corrosion more manifests.
The requirement of chimney anticorrosion material is by general Wet Process of FGD Project:
1. difficult drop-off, anti-corrosion life is long.Owing to the antiseptic project of chimney is time-consuming, laborious, maintenance inconvenience, therefore,
Asking anti-corrosion material to grow service life, the non-maintaining cycle to be grown.
The most high temperature resistant, acidic mediums corrosive nature is good, can bear the impact of high-temperature flue gas for a long time in sour environment.
3. good thermal shock stability, can resist temperature rapid heat cycle and change brought heat exhaustion.The fault of desulphurization plant can be led
Causing smoke directly ventilating, instantaneous temperature can reach more than 250 DEG C, and this requires that anti-corrosion material has the ability of stronger resistance to variations in temperature.
4. waterproof impervious characteristic is excellent, and acid solution can be stoped to permeate further, protection concrete substrate acid and alkali liquid invasion and attack.
To this end, my company gives full play to enamel technical advantage, researching and developing high corrosion resistant flue (chimney) inwall enamel plate, firepower is sent out
Power plant uses high corrosion resistant flue (chimney) inwall enamel plate, it is possible to have the highly corrosion resistant for flue gas, high temperature resistant, acidproof, resistance to
Alkalescence energy.
Summary of the invention
Present invention is generally directed to current enamel coating steel plate and fill the firepower electrical plant cigarette that smoke wet method sulphur removing and dust removing processes
Chimney inwall defect that is perishable, easy to wear and that easily soften, has invented the preparation side of a kind of thermal power plant flue enamel plate
Method, uses New enamel glaze corrosion-resistant, wear-resistant, that heatproof acute degeneration is excellent, in combination with the preparation technology of improvement so that
Enamel surfaces has the premium properties such as smooth exquisiteness, the sudden turn of events wear-resisting, heat-resisting, waterproof impervious characteristic be strong.
The present invention above-mentioned technical problem is that and be carried out by the following technical programs, and a kind of thermal power plant flue uses
The preparation method of enamel plate, it is characterised in that comprise the following steps:
(1) frit for porcelain enamel is prepared:
A, mixing raw material: raw material mix homogeneously in aqueous solvent of frit for porcelain enamel will be prepared；The former material of this frit for porcelain enamel
Material includes glaze, quartz, Borax, barium nitrate, clay and sodium nitrite；
B, found: the above-mentioned raw materials of mix homogeneously is put in crucible, at a temperature of 1200～1400 DEG C, melt 1～3h；
C, Quench: being put in water by the raw material after above-mentioned fusing and be rapidly cooled to room temperature, then pull drying out, solidification obtains
Block frit；
D, ball milling: frit, clay and water are added grinding in ball grinder to making glaze by the sieve of 40～80 mesh
Slurry；
(2) wet spray: the Enamel Slip above-mentioned grinding obtained, on even application to steel plate, obtains enamel plate；
(3) dry: at a temperature of enamel plate obtained above is placed in 100～120 DEG C, dry 20～60min；
(4) fire finished product: again will dry after enamel plate put in calcining kiln, at a temperature of 860～880 DEG C, fire 8～
16min。
As preferably, the raw material preparing frit for porcelain enamel is made up of the compound of following mass parts: glaze 90～110 parts,
15～30 parts of quartz, Borax 0.5～1.5 parts, barium nitrate 0.2～0.5 part, clay 5～8 parts, sodium nitrite 0.1～0.5 part, water
40～55 parts.
As preferably, the raw material preparing frit for porcelain enamel is made up of the compound of following mass parts: glaze 100 parts, quartz
30 parts, Borax 1 part, barium nitrate 0.5 part, clay 7 parts, sodium nitrite 0.5 part, 45 parts of water.
As preferably, described glaze be made up of the compound of following mass percent:
As preferably, in described step c, it is cooled to the raw material of room temperature, after pulling out at a temperature of 100～120 DEG C, dries 2
～4min.
As preferably, in described step d, the consumption of clay is the 7% of clinker quality, and the consumption of water is the 44 of clinker quality
～55%.
As preferably, in described step (2), the Enamel Slip unit weight on even application to steel plate is 1.65～1.85g/
m2, porcelain thickness controls after burning till between 170～300 μm.
One, the adjustment of glaze:
Due to the use environment that this glaze is special, the enamel plate made require most stringent aspect be its corrosion resistance,
Heatproof acute degeneration and wearability, for this three aspect particular/special requirement we the proportioning of glaze is adjusted.
Glaze prepare the proportion adding titanium dioxide and Anhydrite in raw material, i.e. in enamel proportioning, increase TiO2
Composition, largely promote decay resistance and the chemical stability of enamel, cause to prevent titanium dioxide from increasing close
The impact reduced, slightly increase COThe content of O and NiO.
Al2O3Composition increase, significantly improve the heat-resisting of enamel and anti-wear performance, therefore the proportion of raw material andesine strengthen.
Prepare the proportion suitably decreasing sodium nitrite in the raw material of frit for porcelain enamel, although reduce porcelain to a certain extent
The resistance to elevated temperatures of glaze, but decrease Na simultaneously2The introducing of O, improves the softening temperature of enamel to a certain extent；Strengthen simultaneously
Quartz SiO2Introduction volume promote the firing temperature of enamel so that enamel resistance to elevated temperatures and adherence are outstanding.Quartz SiO2
Being chemical durability and the component of mechanical performance of impact generation enamel layer, it can promote the softening temperature of enamel significantly, from
And improve firing temperature.
Prepare in the raw material of frit for porcelain enamel and add BaCO3, as the raw material of introduction BaO, BaO is that impact generates enamel
The component of chemical durability, mechanical performance and the thermal coefficient of expansion of layer, adds BaCO3Enamel plate is made to have more preferable heatproof anxious
Degeneration energy.
Two, the adjustment of plate pre-treatment:
After prepared glaze, the pre-treatment to flue (chimney) inwall steel plate is also carried out partial adjustment.In view of flue (cigarette
Chimney) inwall is generally adopted by ART310 hot rolled steel plate, and thickness is 3mm, and normal pre-treating technology can make to produce
Enamel plate occurs that squama is quick-fried, does not meets customer demand.After considering quality and productivity effect two aspect, before the present invention incites somebody to action usually
Defat cylinder and hot acid cylinder in process for producing line are improved, it is ensured that steel plate pre-treatment rear surface oxide skin is cleared up dry completely
Only, and without any oils and fats, enamel firing will not be had undesirable effect.
Three, the adjustment of firing process:
For the adjustment of enamel formula, firing temperature is greatly improved spatial dimension, for ensureing adherence and porcelain facing
Effect, firing temperature region is placed on 850-880 DEG C, and the time regards plate size 7～16min.
In sum, the present invention compared with prior art has the advantage that
The present invention uses New enamel glaze corrosion-resistant, wear-resistant, that heatproof acute degeneration is excellent, in combination with the system of improvement
Standby operation so that enamel surfaces has the premium properties such as smooth exquisiteness, the sudden turn of events wear-resisting, heat-resisting, waterproof impervious characteristic be strong；Firepower is sent out
Power plant use the present invention high corrosion resistant flue (chimney) inwall enamel plate, it is possible to have the highly corrosion resistant for flue gas, high temperature resistant,
Acidproof, alkaline resistance properties, is exposed in the environment of high temperature, high humility for a long time, still can keep the good of surface mechanical performance；This
The enamel plate structure of invention preparation is more reasonable, and light weight, convenient for installation and maintenance, low cost, heat exchange efficiency is low, service life
Long.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is described further.
Embodiment 1:
The preparation method of a kind of thermal power plant flue enamel plate, comprises the following steps:
(1) frit for porcelain enamel is prepared:
A, mixing raw material: raw material mix homogeneously in aqueous solvent of frit for porcelain enamel will be prepared；The former material of this frit for porcelain enamel
Material is prepared the raw material of frit for porcelain enamel and is made up of the compound of following mass parts: glaze 100 parts, 30 parts of quartz, Borax 1 part, nitre
Acid barium 1 part, clay 7 parts, sodium nitrite 0.5 part, 45 parts of water；Wherein, described glaze is by the compound group of following mass percent
Become:
B, found: the above-mentioned raw materials of mix homogeneously is put in crucible, at a temperature of 1200 DEG C, melt 3h；
C, Quench: being put in water by the raw material after above-mentioned fusing and be rapidly cooled to room temperature, this is cooled to the raw material of room temperature, drags for
After going out at a temperature of 100 DEG C, drying 4min, solidification obtains block frit；
D, ball milling: frit, clay and water are added grinding in ball grinder to making glaze by the sieve of 40～80 mesh
Slurry；
(2) wet spray: on the Enamel Slip even application above-mentioned grinding obtained to steel plate, obtains enamel plate, described
Enamel Slip unit weight is 1.65～1.85g/m2, porcelain thickness controls after burning till between 170～300 μm；
(3) dry: at a temperature of enamel plate obtained above is placed in 100 DEG C, dry 60min；
(4) finished product is fired: the enamel plate after drying again is put in calcining kiln, at a temperature of 850 DEG C, fires 7min.
Embodiment 2:
The preparation method of a kind of thermal power plant flue enamel plate, comprises the following steps:
(1) frit for porcelain enamel is prepared:
A, mixing raw material: raw material mix homogeneously in aqueous solvent of frit for porcelain enamel will be prepared；The former material of this frit for porcelain enamel
Material is prepared the raw material of frit for porcelain enamel and is made up of the compound of following mass parts: glaze 100 parts, 30 parts of quartz, Borax 1 part, nitre
Acid barium 1 part, clay 7 parts, sodium nitrite 0.5 part, 45 parts of water；Wherein, described glaze is by the compound group of following mass percent
Become:
B, found: the above-mentioned raw materials of mix homogeneously is put in crucible, at a temperature of 1200 DEG C, melt 3h；
C, Quench: being put in water by the raw material after above-mentioned fusing and be rapidly cooled to room temperature, this is cooled to the raw material of room temperature, drags for
After going out at a temperature of 100 DEG C, drying 4min, solidification obtains block frit；
D, ball milling: frit, clay and water are added grinding in ball grinder to making glaze by the sieve of 40～80 mesh
Slurry；
(2) wet spray: on the Enamel Slip even application above-mentioned grinding obtained to steel plate, obtains enamel plate, described
Enamel Slip unit weight is 1.65～1.85g/m2, porcelain thickness controls after burning till between 170～300 μm；
(3) dry: at a temperature of enamel plate obtained above is placed in 100 DEG C, dry 60min；
(4) finished product is fired: the enamel plate after drying again is put in calcining kiln, at a temperature of 850 DEG C, fires 8min.
Embodiment 3:
The preparation method of a kind of thermal power plant flue enamel plate, comprises the following steps:
(1) frit for porcelain enamel is prepared:
A, mixing raw material: raw material mix homogeneously in aqueous solvent of frit for porcelain enamel will be prepared；The former material of this frit for porcelain enamel
Material is prepared the raw material of frit for porcelain enamel and is made up of the compound of following mass parts: glaze 100 parts, 30 parts of quartz, Borax 1 part, nitre
Acid barium 1 part, clay 7 parts, sodium nitrite 0.5 part, 45 parts of water；Wherein, described glaze is by the compound group of following mass percent
Become:
B, found: the above-mentioned raw materials of mix homogeneously is put in crucible, at a temperature of 1400 DEG C, melt 1h；
C, Quench: being put in water by the raw material after above-mentioned fusing and be rapidly cooled to room temperature, this is cooled to the raw material of room temperature, drags for
After going out at a temperature of 120 DEG C, drying 2in, solidification obtains block frit；
D, ball milling: frit, clay and water are added grinding in ball grinder to making glaze by the sieve of 40～80 mesh
Slurry；
(2) wet spray: on the Enamel Slip even application above-mentioned grinding obtained to steel plate, obtains enamel plate, described
Enamel Slip unit weight is 1.65～1.85g/m2, porcelain thickness controls after burning till between 170～300 μm；
(3) dry: at a temperature of enamel plate obtained above is placed in 120 DEG C, dry 20min；
(4) finished product is fired: the enamel plate after drying again is put in calcining kiln, at a temperature of 860 DEG C, fires 8min.
Embodiment 4:
The preparation method of a kind of thermal power plant flue enamel plate, comprises the following steps:
(1) frit for porcelain enamel is prepared:
A, mixing raw material: raw material mix homogeneously in aqueous solvent of frit for porcelain enamel will be prepared；The former material of this frit for porcelain enamel
Material is prepared the raw material of frit for porcelain enamel and is made up of the compound of following mass parts: glaze 100 parts, 30 parts of quartz, Borax 1 part, nitre
Acid barium 1 part, clay 7 parts, sodium nitrite 0.5 part, 45 parts of water；Wherein, described glaze is by the compound group of following mass percent
Become:
B, found: the above-mentioned raw materials of mix homogeneously is put in crucible, at a temperature of 1400 DEG C, melt 1h；
C, Quench: being put in water by the raw material after above-mentioned fusing and be rapidly cooled to room temperature, this is cooled to the raw material of room temperature, drags for
After going out at a temperature of 120 DEG C, drying 2min, solidification obtains block frit；
D, ball milling: frit, clay and water are added grinding in ball grinder to making glaze by the sieve of 40～80 mesh
Slurry；
(2) wet spray: on the Enamel Slip even application above-mentioned grinding obtained to steel plate, obtains enamel plate, described
Enamel Slip unit weight is 1.65～1.85g/m2, porcelain thickness controls after burning till between 170～300 μm；
(3) dry: at a temperature of enamel plate obtained above is placed in 120 DEG C, dry 60min；
(4) finished product is fired: the enamel plate after drying again is put in calcining kiln, at a temperature of 860 DEG C, fires 8min.
The enamel plate obtaining production carries out the test of performance indications: enamel plate production obtained is placed on 350 DEG C of temperature
Under, heated at constant temperature 30 minutes, it is cooled to room temperature；After above-mentioned steps is repeated 5 times；Enamel plate does not the most split porcelain, pore-free, and table
Face does not softens.
The thickness of enamel coating steel matrix steel plate is usually 2.8-3.0mm, and its minimum thickness is not less than 2.8mm, and should
Meet the requirement of engineering.
The standardized product of the present invention is applicable to fill in the firepower electrical plant flue (chimney) that smoke wet method sulphur removing and dust removing processes
Wall, uses chemical anchor bolts to be connected with the channel-section steel Os Draconis through epoxy resin antirust treatment mode, enamel plate and Os Draconis titanizing screw
Connecting, junction is filled with high temperature-resistant acid-resistant washer, also connects with titanizing screw between enamel plate.
For firepower electrical plant flue (chimney) special enamel plate, use high temperature resistant >=300 DEG C, acidproof, weather-proof fluid sealant.
One, acidproof and spark test, resistance to 30% sulphuric acid of enamel coating boils 18 hours, erosion amount≤2g/m2.
Two, adherence, thread AA level.
Three, the heatproof sudden turn of events, the heatproof sudden turn of events 350 DEG C, 5 flawlesses；Carry out heatproof shock property test, if without burst porcelain, instead
Retrial is tested and is carried out 5 times；After 5 tests, flawless is without burst porcelain.
Four, wear-resisting, porcelain thickness 167 μm, ceramic wear-resisting test machine 30min, loses quality 11g/m2。
Table 1 enamelled pressed steel surfaces externally and internally enamel porcelain thickness unit is millimeter
Table 2 enamelled pressed steel surface enamel coating quality
Table 3 enamel coating surface tear and abrasive allowed band
| Project | Requirement | Detection method |
| Scratch depth | It is not more than surface and processes thickness | Visual observations |
| Scratch total length, mm | ≤30 | Steel ruler |
| The scratch gross area, mm2 | ≤300 | Steel ruler |
| Scratch, number is always located in scratch | ≤4 | Visual observations |
Table 4 enamelled pressed steel physicochemical property table
Test method presses standard JG/T234-2008 " architectural decoration enamelled pressed steel "
Enamel coating surface of steel plate is fragility body, and the storage of product is critically important, should prevent weight and the impact of hard object.Storage
When depositing, pile is unsuitable too high, it is to avoid contact with hazardous medium.
Specific embodiment described in literary composition is only to present invention spirit explanation for example.The technical field of the invention
Technical staff described specific embodiment can be made various amendment or supplement or use similar mode to substitute,
But without departing from the spirit of the present invention or surmount scope defined in appended claims.
Claims (7)
1. the thermal power plant flue preparation method of enamel plate, it is characterised in that comprise the following steps:
(1) frit for porcelain enamel is prepared:
A, mixing raw material: raw material mix homogeneously in aqueous solvent of frit for porcelain enamel will be prepared；The raw material bag of this frit for porcelain enamel
Include glaze, quartz, Borax, barium nitrate, clay and sodium nitrite；
B, found: the above-mentioned raw materials of mix homogeneously is put in crucible, at a temperature of 1200～1400 DEG C, melt 1～3h；
C, Quench: put in water by the raw material after above-mentioned fusing and be rapidly cooled to room temperature, then pull drying out, and solidification obtains bulk
Frit；
D, ball milling: frit, clay and water are added grinding in ball grinder to making glaze slip by the sieve of 40～80 mesh；
(2) wet spray: the Enamel Slip above-mentioned grinding obtained, on even application to steel plate, obtains enamel plate；
(3) dry: at a temperature of enamel plate obtained above is placed in 100～120 DEG C, dry 20～60min；
(4) fire finished product: again will dry after enamel plate put in calcining kiln, at a temperature of 860～880 DEG C, fire 8～
16min。
The preparation method of thermal power plant the most according to claim 1 flue enamel plate, it is characterised in that prepare enamel
The raw material of glaze is made up of the compound of following mass parts: glaze 90～110 parts, 15～30 parts of quartz, Borax 0.5～1.5
Part, barium nitrate 0.2～0.5 part, clay 5～8 parts, sodium nitrite 0.1～0.5 part, water 40～55 parts.
The preparation method of thermal power plant the most according to claim 2 flue enamel plate, it is characterised in that prepare enamel
The raw material of glaze is made up of the compound of following mass parts: glaze 100 parts, 30 parts of quartz, Borax 1 part, barium nitrate 0.5 part,
Clay 7 parts, sodium nitrite 0.5 part, 45 parts of water.
4., according to the thermal power plant flue preparation method of enamel plate described in claim 1 or 2 or 3 any one, it is special
Levying and be, described glaze is made up of the compound of following mass percent:
B2O36.5%, SiO257.10%, Na2O 12.00%, MgO 0.30%,
P2O50.08%, Al2O34.0%, MoO30.30%, BaO 2.0%,
K2O 5.0%, CaO 2.0%, TiO23.0%, Cr2O30.08%,
MnO 0.60%, Fe2O30.40%, CoO 1.5%, NiO 0.50%,
CuO 0.60%, ZnO 0.50%, Nb2O50.02%, ZrO21.50%,
HfO20.05%, SO30.05%, CaF21.92%.
The preparation method of thermal power plant the most according to claim 4 flue enamel plate, it is characterised in that described step
In c, it is cooled to the raw material of room temperature, after pulling out at a temperature of 100～120 DEG C, dries 2～4min.
The preparation method of thermal power plant the most according to claim 4 flue enamel plate, it is characterised in that described step
In d, the consumption of clay is the 7% of clinker quality, and the consumption of water is the 44～55% of clinker quality.
The preparation method of thermal power plant the most according to claim 4 flue enamel plate, it is characterised in that described step
(2), in, the Enamel Slip unit weight on even application to steel plate is 1.65～1.85g/m2, porcelain thickness controls after burning till 170
～300 between μm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| CN105951098B (en) | 2018-07-27 |
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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 |