CN116179078B - Anticorrosive anti-coking coating for quenching tower of hazardous waste incineration system and preparation method thereof - Google Patents
Anticorrosive anti-coking coating for quenching tower of hazardous waste incineration system and preparation method thereof Download PDFInfo
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- 238000010791 quenching Methods 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 42
- 238000000576 coating method Methods 0.000 title claims abstract description 42
- 238000004939 coking Methods 0.000 title claims abstract description 42
- 230000000171 quenching effect Effects 0.000 title claims abstract description 40
- 239000002920 hazardous waste Substances 0.000 title claims abstract description 27
- 238000004056 waste incineration Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 79
- 238000005260 corrosion Methods 0.000 claims abstract description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010703 silicon Substances 0.000 claims abstract description 28
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 28
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 26
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 24
- 239000002113 nanodiamond Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000007767 bonding agent Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000003973 paint Substances 0.000 claims description 22
- 238000000498 ball milling Methods 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 150000003839 salts Chemical class 0.000 abstract description 4
- 239000011858 nanopowder Substances 0.000 abstract description 3
- 239000003575 carbonaceous material Substances 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract description 2
- 238000009766 low-temperature sintering Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 150000004763 sulfides Chemical class 0.000 abstract description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract description 2
- 150000003841 chloride salts Chemical class 0.000 abstract 1
- 238000005536 corrosion prevention Methods 0.000 abstract 1
- 239000000571 coke Substances 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002148 Gellan gum Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011225 non-oxide ceramic Substances 0.000 description 1
- 229910052575 non-oxide ceramic Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2251—Oxides; Hydroxides of metals of chromium
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses an anti-corrosion and anti-coking coating for a quenching tower of a hazardous waste incineration system and a preparation method thereof, wherein the coating comprises the following raw materials: 35-50% of nano diamond powder, 10-15% of nano chromium oxide, 5-10% of nano zirconium boride powder, 5-10% of silicon boride micropowder and 20-30% of bonding agent. The invention utilizes the particle stacking effect and the low-temperature sintering effect of the nano powder to achieve the densification of the coating, plays a role in corrosion prevention, and the material belongs to an inorganic nonmetallic material, is not easy to generate adhesion reaction with an oxide material, has high density and strength, plays a role in preventing the oxide from generating reaction adhesion on one hand, and has stronger acid-base atmosphere corrosion on the other hand. The nano diamond powder in the coating is a carbon material, has smooth surface, high hardness and wear resistance, is not easy to wet with various chlorides, sulfides and sulfates, and has the main function of preventing various molten ash, various salts, nonferrous metals and oxides from adhering to the surface of the coating, thereby playing an anti-coking role.
Description
Technical Field
The invention relates to the technical field of anti-corrosion and anti-coking coating, in particular to an anti-corrosion and anti-coking coating for a quenching tower of a hazardous waste incineration system and a preparation method thereof.
Background
The hazardous waste incineration system is the most economical and ideal treatment mode for solving the hazardous waste at present, not only effectively solves the problem of harmless treatment of the hazardous waste, but also brings certain economic benefit for the hazardous waste incineration industry. The hazardous waste incineration system generally comprises a rotary kiln, a secondary combustion chamber, a waste heat boiler, a gellan tower and other devices, and the whole system has certain coking corrosion problems because hazardous waste objects processed by the incineration system are complex, contain corrosive S, cl plasma, low-melting-point substances and the like. In particular to a quenching tower device, the working temperature of an inlet of the quenching tower is not lower than 500 ℃, and high-salt wastewater is sprayed through a top nozzle to rapidly cool the interior of the quenching tower so as to prevent the generation of harmful substances dioxin. The chloride and sulfate can cause serious coking on the inner wall of the quenching tower in the high-temperature and high-humidity environment, and certain corrosion is generated on castable on the inner wall of the quenching tower to influence the service life of the castable, so that the whole system is continuously shut down to clean salt and ash, the operation time is 3-5 months, the operation of serious coking is about one month, the furnace is shut down once, the operation efficiency of the incineration system is greatly influenced, and a great deal of manpower and material resources are required to be spent on treating the coking of the quenching tower by hazardous waste enterprises.
Through the prior search of the applicant, the following related technical schemes are found in the prior art:
reference 1: chinese patent document with patent publication No. CN114853455 a.
Reference 1 discloses an anti-slagging corrosion-resistant high-temperature composite coating and a preparation method thereof, wherein the anti-slagging corrosion-resistant high-temperature composite coating comprises, by weight, 20-30 parts of corundum fine powder specification mixture, 2-5 parts of ceramic powder with the particle size of 0.01-0.025 mm, 10-15 parts of barium metaborate, 15-20 parts of nano silicon dioxide, 2-6 parts of quartz powder, 0.5-1 part of nano yttrium oxide with the particle size of 30nm, 1-2 parts of nano cerium oxide with the particle size of 30nm, 15-20 parts of a bonding agent, 0.2-0.5 part of a dispersing agent, 1-5 parts of an anti-settling additive, 10 parts of fatty alcohol polyoxyethylene ether, 2-5 parts of sodium nitrite and FeCl 2 25 parts. Solves the problem that the inner wall paint of the existing garbage incinerator can not synchronously have corrosion resistance when ensuring certain anti-slagging and anti-high temperature performances.
The composite coating disclosed in the technical scheme mainly solves the problems of corrosion and slagging of the inner wall of the garbage incinerator, especially in the high temperature area (about 1100 ℃) near the front and rear arches, but the selected raw materials are mainly oxide materials (corundum fine powder, nano silicon dioxide, quartz powder and the like) which are similar to the components of the coke slag, basically belong to silicate or oxide materials, have the same attribute and are easier to moisten and adhere with each other, and the selected non-oxide ceramic powder is easier to oxidize at the high temperature to become the oxide materials, so that the problem of corrosion near the front and rear arches of the garbage incinerator can be solved to a certain extent by the method of comparison documents, but the ideal anti-slagging effect is difficult to achieve, and the preparation process is complex.
Disclosure of Invention
The invention aims to solve the problems of serious coking on the inner wall of a quenching tower of a hazardous waste incineration system in the prior art, and provides an anti-corrosion and anti-coking coating for the quenching tower of the hazardous waste incineration system and a preparation method thereof, wherein the effect of the existing anti-corrosion and anti-coking coating is not ideal and the process is complex.
The invention solves the technical problems, and adopts the following technical scheme: the anticorrosive and coking-preventing paint for the quenching tower of the hazardous waste incineration system comprises the following raw materials in percentage by weight: 35-50% of nano diamond powder, 10-15% of nano chromium oxide, 5-10% of nano zirconium boride powder, 5-10% of silicon boride micro powder and 20-30% of bonding agent.
As the anticorrosive anti-coking paint for the quenching tower of the hazardous waste incineration system, the invention is further optimized: the coating consists of the following raw materials in percentage by weight: 40% of nano diamond powder, 15% of nano chromium oxide, 10% of nano zirconium boride powder, 5% of silicon boride micro powder and 30% of bonding agent.
As the anticorrosive anti-coking paint for the quenching tower of the hazardous waste incineration system, the invention is further optimized: the nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, and the granularity of the silicon boride micro powder is less than or equal to 88 mu m.
As the anticorrosive anti-coking paint for the quenching tower of the hazardous waste incineration system, the invention is further optimized: the binding agent is silica gel or silica sol.
A preparation method of anti-corrosion and anti-coking paint for a quenching tower of a hazardous waste incineration system comprises the following steps:
s1, taking all raw materials according to the raw material composition of the paint;
s2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding a binding agent, and performing stirring ball milling to obtain the anti-corrosion anti-coking nano paint.
As the preparation method of the anti-corrosion and anti-coking paint for the quenching tower of the hazardous waste incineration system, the invention is further optimized: the ball milling operation conditions are as follows: the ball material mass ratio is 20-30:1, and the ball milling time is 2-4 hours.
The invention has the following beneficial effects:
1. the main raw materials (diamond powder, zirconium boride and silicon boride) selected by the invention belong to inorganic nonmetallic materials, are not easy to generate adhesion reaction with oxide materials, have higher density and high strength, have the effect of preventing the oxide from generating reaction adhesion on one hand, and have stronger acid-base atmosphere corrosion and scouring prevention on the other hand. The nano diamond powder is a carbon material, has a smooth surface, is not easy to wet with various chlorides, sulfides and sulfates (coking substances on the inner wall of the quenching tower), and has the main function of preventing various molten ash, various salts, nonferrous metals and oxides from adhering to the surface of the coating, thereby playing an anti-coking role. Meanwhile, the zirconium boride powder has higher thermal shock resistance and oxidation resistance, so that the coating is not easy to adhere, and the service life of the coating is prolonged. The silicon boride powder has high strength, excellent scouring resistance and wear resistance as well as diamond powder, and particularly has high strength and stability under thermal shock.
2. The coating of the invention utilizes the particle stacking effect of nano powder and the low-temperature sintering effect of nano powder to achieve densification of the coating and has the effect of corrosion resistance.
Drawings
FIG. 1 is a graph of the condition of the inner wall of a quench tower prior to operation coated with a coating of the present invention;
FIG. 2 is a graph of the inner wall conditions of a quench tower operated for 3 months without the coating of the present invention;
FIG. 3 is a graph of the inner wall conditions of a quench tower having a coating according to the present invention applied thereto during 4 months of operation;
FIG. 4 is a graph showing ash formation from a quench tower coated with a coating according to the present invention;
FIG. 5 is a graph showing ash formation in a quench tower without the coating of the present invention.
Detailed Description
For a better understanding of the present invention, the following examples are set forth to illustrate, but are not to be construed as limiting the invention.
Example 1 ]
A preparation method of anti-corrosion and anti-coking paint for a quenching tower of a hazardous waste incineration system comprises the following steps:
s1, taking the following raw materials in percentage by weight: 40% of nano diamond powder, 10-15% of nano chromium oxide, 5-10% of nano zirconium boride powder, 5-10% of silicon boride micro powder and 20-30% of bonding agent.
The nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, the granularity of the silicon boride micropowder is less than or equal to 88 mu m, and the bonding agent is silicon gum.
S2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding silicon gum, and performing stirring ball milling (the ball material mass ratio is 20:1, and the ball milling time is 4 hours) to obtain the anti-corrosion anti-coking nano paint.
< effect of practical application of paint >
After the anti-coking coating material prepared in example 1 is coated on a project of 2 nd period of New Yi Limited company (inner wall after coating is shown in figure 1), high-salt wastewater is sprayed back in 1 month 2022, and the salt water concentration is 40ms/cm 3 The whole high-salt wastewater is sprayed back, the high-salt wastewater accounts for about 80% of the whole water spraying amount, the equipment runs for one year, the quenching tower is well operated, the phenomenon that the quenching tower is blocked by coking does not occur, the quenching tower is stopped due to the blocking of the coking is avoided, the ash discharging condition is shown in fig. 3, mainly, powdery fine particles are mainly used, are not adhered to the inner wall of the quenching tower and are easy to clean), mainly powdery substances are not large coke blocks, the coating has good anti-coking and non-large coke block effect, and fig. 4 shows the ash discharging condition before the coating is not coated, mainly, the coke blocks are mainly adhered to the inner wall of the quenching tower, the quenching tower is difficult to clean, and the outlet of the quenching tower is easy to block.
FIG. 2 shows the condition of the inner wall of a quenching tower without using the coating layer of the invention, wherein the inner wall of the quenching tower is formed with a thick layer of coke, almost occupies the whole quenching tower space, and the equipment cannot normally operate and is forced to stop the furnace. FIG. 3 shows the inner wall of the quenching tower after the coating according to the invention. Compared with the coating material without using the anti-coking coating, the inner wall surface of the quenching tower is covered with a layer of attached ash after using the coating, and the natural color of the coating can be seen after removing the attached ash. Therefore, the coating has a good coking-preventing effect in the quenching tower, and only one layer of attached ash is arranged on the surface of the coating, and the attached ash can fall off along with the scouring of air flow in the running process of the furnace, so that the surface of the coating is ensured not to be in large coking blocks.
Example 2 ]
A preparation method of anti-corrosion and anti-coking paint for a quenching tower of a hazardous waste incineration system comprises the following steps:
s1, taking the following raw materials in percentage by weight: 50% of nano diamond powder, 15% of nano chromium oxide, 5% of nano zirconium boride powder, 5% of silicon boride micro powder and 25% of bonding agent.
The nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, the granularity of the silicon boride micro powder is less than or equal to 88 mu m, and the bonding agent is silica sol.
S2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding a binding agent, and performing stirring ball milling (the ball material mass ratio is 20:1, and the ball milling time is 2 hours) to obtain the anti-corrosion anti-coking nano paint.
Example 4 ]
A preparation method of anti-corrosion and anti-coking paint for a quenching tower of a hazardous waste incineration system comprises the following steps:
s1, taking the following raw materials in percentage by weight: 45% of nano diamond powder, 10% of nano chromium oxide, 10% of nano zirconium boride powder, 5% of silicon boride micro powder and 30% of bonding agent.
The nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, the granularity of the silicon boride micro powder is less than or equal to 88 mu m, and the bonding agent is silica sol.
S2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding a binding agent, and performing stirring ball milling (the ball material mass ratio is 26:1, and the ball milling time is 3 hours) to obtain the anti-corrosion anti-coking nano paint.
Example 5 ]
A preparation method of anti-corrosion and anti-coking paint for a quenching tower of a hazardous waste incineration system comprises the following steps:
s1, taking the following raw materials in percentage by weight: 49% of nano diamond powder, 11% of nano chromium oxide, 6% of nano zirconium boride powder, 6% of silicon boride micropowder and 28% of bonding agent.
The nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, the granularity of the silicon boride micro powder is less than or equal to 88 mu m, and the bonding agent is silica sol.
S2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding a binding agent, and performing stirring ball milling (the ball material mass ratio is 22:1, and the ball milling time is 3 hours) to obtain the anti-corrosion anti-coking nano paint.
Example 6 ]
A preparation method of anti-corrosion and anti-coking paint for a quenching tower of a hazardous waste incineration system comprises the following steps:
s1, taking the following raw materials in percentage by weight: 42% of nano diamond powder, 15% of nano chromium oxide, 8% of nano zirconium boride powder, 8% of silicon boride micro powder and 27% of bonding agent.
The nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, the granularity of the silicon boride micro powder is less than or equal to 88 mu m, and the bonding agent is silica sol.
S2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding a binding agent, and performing stirring ball milling (the ball material mass ratio is 25:1, and the ball milling time is 3 hours) to obtain the anti-corrosion anti-coking nano paint.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (3)
1. The anticorrosive and coking-preventing paint for the quenching tower of the hazardous waste incineration system is characterized by comprising the following raw materials in percentage by weight: 35-50% of nano diamond powder, 10-15% of nano chromium oxide, 5-10% of nano zirconium boride powder, 5-10% of silicon boride micropowder and 20-30% of bonding agent;
the nanometer chromium oxide is powder with the granularity of 60-100nm, the granularity of the nanometer zirconium boride powder is 300-500nm, and the granularity of the silicon boride micropowder is less than or equal to 88 mu m;
the bonding agent is silica gel or silica sol;
the preparation method of the anti-corrosion anti-coking coating specifically comprises the following steps:
s1, taking all raw materials according to the raw material composition of the coating;
s2, uniformly mixing nano diamond powder, nano chromium oxide, nano zirconium boride powder and silicon boride micro powder, adding a binding agent, and performing stirring ball milling to obtain the anti-corrosion anti-coking nano paint.
2. The anticorrosive anti-coking coating for the quenching tower of the hazardous waste incineration system as claimed in claim 1, wherein the anticorrosive anti-coking coating comprises the following raw materials in percentage by weight: 40% of nano diamond powder, 15% of nano chromium oxide, 10% of nano zirconium boride powder, 5% of silicon boride micro powder and 30% of bonding agent.
3. The anticorrosive anti-coking coating for the quenching tower of the hazardous waste incineration system according to claim 1, wherein the ball milling operation conditions are as follows: the ball material mass ratio is 20-30:1, and the ball milling time is 2-4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310210542.0A CN116179078B (en) | 2023-03-07 | 2023-03-07 | Anticorrosive anti-coking coating for quenching tower of hazardous waste incineration system and preparation method thereof |
Applications Claiming Priority (1)
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| CN106587724A (en) * | 2016-12-06 | 2017-04-26 | 富耐克超硬材料股份有限公司 | Composite material coating and its preparation method, and desulfurization system |
| CN115160835A (en) * | 2022-07-27 | 2022-10-11 | 西安热工研究院有限公司 | Micro-nano multi-scale anti-coking and anti-wear coating, composite material and preparation method thereof |
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| US9011791B2 (en) * | 2008-04-07 | 2015-04-21 | Emisshield, Inc. | Pyrolysis furnace and process tubes |
| US8790789B2 (en) * | 2008-05-29 | 2014-07-29 | General Electric Company | Erosion and corrosion resistant coatings, methods and articles |
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| CN106587724A (en) * | 2016-12-06 | 2017-04-26 | 富耐克超硬材料股份有限公司 | Composite material coating and its preparation method, and desulfurization system |
| CN115160835A (en) * | 2022-07-27 | 2022-10-11 | 西安热工研究院有限公司 | Micro-nano multi-scale anti-coking and anti-wear coating, composite material and preparation method thereof |
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