CN116478565A - High-temperature-resistant wear-resistant paint, denitration flue coating structure and construction process - Google Patents
High-temperature-resistant wear-resistant paint, denitration flue coating structure and construction process Download PDFInfo
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- CN116478565A CN116478565A CN202310312044.7A CN202310312044A CN116478565A CN 116478565 A CN116478565 A CN 116478565A CN 202310312044 A CN202310312044 A CN 202310312044A CN 116478565 A CN116478565 A CN 116478565A
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- resistant
- temperature
- wear
- tortoise shell
- shell net
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- 239000011248 coating agent Substances 0.000 title claims abstract description 48
- 238000000576 coating method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 11
- 239000003973 paint Substances 0.000 title claims description 7
- 241000270708 Testudinidae Species 0.000 claims abstract description 63
- 239000011247 coating layer Substances 0.000 claims abstract description 36
- 238000003466 welding Methods 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000011863 silicon-based powder Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 6
- 239000010440 gypsum Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- -1 fluorogypsum Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 13
- 238000005336 cracking Methods 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 5
- 239000012466 permeate Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012257 stirred material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
- C09D1/06—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances cement
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention relates to the technical field of protection of inner walls of denitration flue, in particular to a high-temperature-resistant and wear-resistant coating, a denitration flue coating structure and a construction process, wherein the denitration flue coating structure comprises a high-temperature-resistant and wear-resistant coating layer and a tortoise shell net, and the high-temperature-resistant and wear-resistant coating layer fills meshes of the tortoise shell net and covers a net surface of the tortoise shell net; the inner wall of the mesh of the tortoise shell net is provided with a plurality of extension blocks, and the inner wall of the mesh of the tortoise shell net is provided with penetration holes at the extension positions of the extension blocks. The tortoise shell net is a framework of the coating layer, so that the structural strength of the coating layer is improved, and the probability of cracking or falling of the coating layer caused by a high-temperature high-corrosion environment is reduced. After the high-temperature-resistant and wear-resistant coating layer is filled into meshes of the tortoise shell net, the plurality of extension blocks form a root system structure, so that the connection strength between the high-temperature-resistant and wear-resistant coating layer and the tortoise shell net is improved after the high-temperature-resistant and wear-resistant coating layer is covered on the tortoise shell net; after the high-temperature-resistant and wear-resistant coating layer is filled into the meshes of the tortoise shell net, the high-temperature-resistant and wear-resistant coating layer can permeate into the permeation holes, so that the firmness after covering is further improved.
Description
Technical Field
The invention relates to the technical field of denitration flue inner wall protection, in particular to a high-temperature-resistant wear-resistant coating, a denitration flue coating structure and a construction process.
Background
The desulfurization and denitrification device for the coke oven flue gas has the functions of reducing the SO2 and NOx content in the coke oven flue gas to the standard specified by the national environmental protection policy and then discharging the flue gas, and the realization method is that the flue gas is extracted from the flue through an induced draft fan and is treated by unit equipment and then discharged.
Because the temperature of the flue gas of the coke oven is high and the contents of SO2 and NOx are large, the denitration flue is in a high-temperature and high-corrosion environment for a long time. The inner wall of the existing coke oven flue is generally coated with high-temperature-resistant and wear-resistant materials, but the denitration flue also has the problems of corrosion, abrasion and falling off to different degrees along with the accumulation of the running time only through the protection of the wear-resistant materials.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-temperature-resistant and wear-resistant coating, a denitration flue coating structure and a construction process.
The invention solves the technical problems by the following technical means:
the high-temperature-resistant wear-resistant paint is characterized in that: the preparation method comprises the following raw materials in parts by weight: 88-96 parts of cement clinker, 13-16 parts of gypsum, 4-7 parts of fluorgypsum, 8-12 parts of silicon powder, 3-5 parts of carbon fiber powder, 1-2 parts of alumina powder, 1-2 parts of ceramic fiber, 1-4 parts of auxiliary agent and a proper amount of water.
The preparation method of the high-temperature-resistant wear-resistant paint comprises the following steps:
s1, mixing cement clinker, gypsum, fluorogypsum, silicon powder, carbon fiber powder, alumina powder and ceramic fiber in parts by weight to obtain a component A;
s2, mixing the auxiliary agent and water to obtain a component B;
s3, the prepared component A is firstly placed in a stirrer, then the component B powder is added, and stirring is carried out for 10-20 minutes.
The denitration flue coating structure comprises the high-temperature-resistant and wear-resistant coating layer formed by coating the high-temperature-resistant and wear-resistant coating, and further comprises a tortoise shell net, wherein the tortoise shell net is fixed on the inner wall of a denitration flue, and the high-temperature-resistant and wear-resistant coating layer fills meshes of the tortoise shell net and covers the net surface of the tortoise shell net.
As an improvement of the technical scheme, the denitration flue coating structure is characterized in that a plurality of extension blocks extend towards the inner direction of the mesh of the tortoise shell net, and penetration holes are formed in the position, extending from the extension blocks, of the inner wall of the mesh of the tortoise shell net.
The construction process of the denitration flue coating structure comprises the following steps of:
s1, surface treatment: removing dust, dirt and other impurities on the surface of a construction part of the inner wall of the denitration flue, and polishing rust at a part with serious rust by using an angle polisher;
s2, welding tortoise shell net: according to the actual size of a construction part, lofting and blanking are carried out in advance, firstly, a tortoise shell net is cut, overlapping allowance is reserved, welding is carried out, the net is attached to the surface of the wall, the local clearance is less than or equal to 1mm, then, the welding is firm by adopting a spot welding method, the welding length is more than or equal to 20mm, the tortoise shell net is welded, the coating and welding slag are cleaned up, and the welding slag is cleaned up by using compressed air or a dust collector;
s3, coating a high-temperature-resistant wear-resistant coating: and (3) wiping or squeezing the stirred high-temperature-resistant and wear-resistant coating into the tortoise shell meshes, and covering the whole mesh surface to form a high-temperature-resistant and wear-resistant coating layer.
The invention has the advantages that: silicon powder, carbon fiber powder, alumina powder and the like are added into the high-temperature-resistant wear-resistant coating, so that the high-temperature resistance of the coating is improved, the ceramic fiber can improve the corrosion resistance of the coating, and the structural stability can be kept for a long time when the coating is applied to a high-temperature high-corrosion denitration flue, so that high-temperature cracking or corrosion falling off is avoided.
Furthermore, the inside of the denitration flue is in a high-temperature and high-corrosion environment, and the tortoise shell net is used as a framework of the high-temperature and wear-resistant coating layer, so that the structural strength of the high-temperature and wear-resistant coating layer is improved, and the probability of cracking or falling of the high-temperature and wear-resistant coating layer caused by the high-temperature and high-corrosion environment is reduced; meanwhile, the tortoise shell net is used as an inner framework, so that the strength of the denitration flue can be improved, and the denitration flue is prevented from deforming or breaking.
Furthermore, the extending blocks are arranged, after the high-temperature-resistant and wear-resistant coating layer is filled into the meshes of the tortoise shell net, the plurality of extending blocks form a root system structure, so that the connection strength between the high-temperature-resistant and wear-resistant coating layer and the tortoise shell net is improved after the high-temperature-resistant and wear-resistant coating layer is covered on the tortoise shell net, and the high-temperature-resistant and wear-resistant coating layer is prevented from falling off from the tortoise shell net; meanwhile, the penetrating holes are formed, and after the high-temperature-resistant and wear-resistant coating layer is filled into meshes of the tortoise shell net, the high-temperature-resistant and wear-resistant coating layer can penetrate into the penetrating holes, so that the firmness after covering is further improved.
Drawings
FIG. 1 is a schematic structural view of the coating structure of the denitration flue of the present invention.
Fig. 2 is a schematic diagram of a tortoise shell net according to the present invention.
Fig. 3 is a schematic diagram of a tortoise shell net according to the second embodiment of the present invention.
Fig. 4 is a schematic diagram of the structure of the extending block on the tortoise shell net.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The high-temperature-resistant wear-resistant paint comprises the following raw materials in parts by weight: 88-96 parts of cement clinker, 13-16 parts of gypsum, 4-7 parts of fluorgypsum, 8-12 parts of silicon powder, 3-5 parts of carbon fiber powder, 1-2 parts of alumina powder, 1-2 parts of ceramic fiber, 1-4 parts of auxiliary agent and a proper amount of water.
In the high-temperature-resistant and wear-resistant coating, silicon powder, carbon fiber powder, alumina powder and the like are added, so that the high-temperature resistance of the coating is improved, the ceramic fiber can improve the corrosion resistance of the coating, and the structural stability can be kept for a long time when the coating is applied to a high-temperature and high-corrosion denitration flue, and high-temperature cracking or corrosion falling are avoided.
The preparation method of the high-temperature-resistant wear-resistant paint comprises the following steps:
s1, mixing cement clinker, gypsum, fluorogypsum, silicon powder, carbon fiber powder, alumina powder and ceramic fiber in parts by weight to obtain a component A;
s2, mixing the auxiliary agent and water to obtain a component B;
s3, the prepared component A is firstly placed in a stirrer, then the component B powder is added, and stirring is carried out for 10-20 minutes.
Referring to fig. 1 and 2, the denitration flue coating structure comprises a high-temperature-resistant and wear-resistant coating layer 1 made of the high-temperature-resistant and wear-resistant coating material, and further comprises a tortoise shell net 2, wherein the tortoise shell net 2 is fixed on the inner wall of a denitration flue 9, and the high-temperature-resistant and wear-resistant coating layer 1 fills meshes of the tortoise shell net 2 and covers a net surface of the tortoise shell net 2.
The inside of the denitration flue 9 is a high-temperature and high-corrosion environment, and the tortoise shell net 2 is used as a framework of the high-temperature and wear-resistant coating layer 1, so that the structural strength of the high-temperature and wear-resistant coating layer 1 is improved, and the probability of cracking or falling of the high-temperature and wear-resistant coating layer caused by the high-temperature and high-corrosion environment is reduced; meanwhile, the tortoise shell net 2 is used as an inner framework, so that the strength of the denitration flue 9 can be improved, and the denitration flue 9 is prevented from deforming or breaking.
As a modification of the above-described technical solution, referring to fig. 3 and 4, the mesh inner wall of the tortoise shell net 2 is extended in the mesh inner direction with a plurality of extension pieces 21, and the mesh inner wall of the tortoise shell net 2 is provided with penetration holes 22 at positions where the extension pieces 21 extend.
The extension blocks 21 are arranged, after the high-temperature-resistant and wear-resistant coating layer 1 is filled into the mesh holes of the tortoise shell net 2, the plurality of extension blocks 21 form a root system structure, so that the connection strength between the high-temperature-resistant and wear-resistant coating layer 1 and the tortoise shell net 2 is improved after the high-temperature-resistant and wear-resistant coating layer 1 is covered on the tortoise shell net 2, and the high-temperature-resistant and wear-resistant coating layer 1 is prevented from falling off from the tortoise shell net 2; meanwhile, the penetration holes 22 are arranged, and after the high-temperature-resistant and wear-resistant coating layer 1 is filled into the meshes of the tortoise shell net 2, the penetration holes 22 can be penetrated, so that the firmness after covering is further improved.
The construction process of the denitration flue coating structure comprises the following steps of:
s1, surface treatment: removing dust, dirt and other impurities on the surface of a construction part of the inner wall of the denitration flue, and polishing rust at a part with serious rust by using an angle polisher;
wherein, the rust removal reaches no oxide scale, rust, coating and foreign impurities, and the surface has the metallic luster of the substrate which accords with the Sa3 level or St3 level standard.
S2, welding tortoise shell net: according to the actual size of a construction part, lofting and blanking are carried out in advance, firstly, a tortoise shell net is cut, overlapping allowance is reserved, welding is carried out, the net is attached to the surface of the wall, the local clearance is less than or equal to 1mm, then, the welding is firm by adopting a spot welding method, the welding length is more than or equal to 20mm, the tortoise shell net is welded, the coating and welding slag are cleaned up, and the welding slag is cleaned up by using compressed air or a dust collector;
wherein, the wire cutting pliers for cutting cannot cut thermally; during welding, loosening and outward arching springing phenomena cannot occur, so that the abrasion-resistant cement is compact and firm, the joint of the tortoise shell net should weld all ends firmly, the mesh area of the joint is not smaller than 1/2 of the area of a base hole, the knot clearance and the staggered edge height of the tortoise shell net are not larger than 0.5mm, the ends of the tortoise shell net should be spot-welded and cannot have suspended ends, the tortoise shell net is made of Q345-B material, the thickness is 15mm, the thickness of the tortoise shell net plate is not smaller than 1.75mm, the staggered edge of adjacent steel belts is not larger than 0.5mm, the connecting clearance is not larger than 1mm, and the pitch of holes is 40mm.
S3, coating a high-temperature-resistant wear-resistant coating: and (3) wiping or squeezing the stirred high-temperature-resistant and wear-resistant coating into the tortoise shell meshes, and covering the whole mesh surface to form a high-temperature-resistant and wear-resistant coating layer.
After the high-temperature-resistant wear-resistant coating is filled into meshes of the tortoise shell net, a wood stick is used for beating, the hammer is compact, the surface is smooth, air holes are even, the edge is smooth, the height of a wear-resistant layer is not less than 20mm, the tortoise shell net is not allowed to leak, and the stirred material must be used within 30 minutes to prevent the stirred material from being solidified after exceeding time; after the construction of the material is finished, the curing time is not less than 24 hours.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The high-temperature-resistant wear-resistant paint is characterized in that: the preparation method comprises the following raw materials in parts by weight: 88-96 parts of cement clinker, 13-16 parts of gypsum, 4-7 parts of fluorgypsum, 8-12 parts of silicon powder, 3-5 parts of carbon fiber powder, 1-2 parts of alumina powder, 1-2 parts of ceramic fiber, 1-4 parts of auxiliary agent and a proper amount of water.
2. The high temperature resistant and wear resistant coating according to claim 1, wherein the method for preparing the high temperature resistant and wear resistant coating comprises the steps of:
s1, mixing cement clinker, gypsum, fluorogypsum, silicon powder, carbon fiber powder, alumina powder and ceramic fiber in parts by weight to obtain a component A;
s2, mixing the auxiliary agent and water to obtain a component B;
s3, the prepared component A is firstly placed in a stirrer, then the component B powder is added, and stirring is carried out for 10-20 minutes.
3. The denitration flue coating structure comprises a high-temperature-resistant and wear-resistant coating layer (1) formed by coating the high-temperature-resistant and wear-resistant coating material according to claim 1, and is characterized in that: the high-temperature-resistant and wear-resistant tortoise shell net (2) is fixed on the inner wall of the denitration flue (9), and the high-temperature-resistant and wear-resistant coating layer (1) fills meshes of the tortoise shell net (2) and covers the net surface of the tortoise shell net (2).
4. A denitration flue coating structure according to claim 3, wherein: the inner wall of the mesh of the tortoise shell net (2) extends towards the inner direction of the mesh to form a plurality of extending blocks (21), and the inner wall of the mesh of the tortoise shell net (2) is provided with penetrating holes (22) at the extending positions of the extending blocks (21).
5. The denitration flue coating structure according to claim 4, wherein the construction process of the denitration flue coating structure comprises the following steps:
s1, surface treatment: removing dust, dirt and other impurities on the surface of a construction part of the inner wall of the denitration flue, and polishing rust at a part with serious rust by using an angle polisher;
s2, welding tortoise shell net: according to the actual size of a construction part, lofting and blanking are carried out in advance, firstly, a tortoise shell net is cut, overlapping allowance is reserved, welding is carried out, the net is attached to the surface of the wall, the local clearance is less than or equal to 1mm, then, the welding is firm by adopting a spot welding method, the welding length is more than or equal to 20mm, the tortoise shell net is welded, the coating and welding slag are cleaned up, and the welding slag is cleaned up by using compressed air or a dust collector;
s3, coating a high-temperature-resistant wear-resistant coating: and (3) wiping or squeezing the stirred high-temperature-resistant and wear-resistant coating into the tortoise shell meshes, and covering the whole mesh surface to form a high-temperature-resistant and wear-resistant coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310312044.7A CN116478565A (en) | 2023-03-27 | 2023-03-27 | High-temperature-resistant wear-resistant paint, denitration flue coating structure and construction process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310312044.7A CN116478565A (en) | 2023-03-27 | 2023-03-27 | High-temperature-resistant wear-resistant paint, denitration flue coating structure and construction process |
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| CN116478565A true CN116478565A (en) | 2023-07-25 |
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| CN202310312044.7A Pending CN116478565A (en) | 2023-03-27 | 2023-03-27 | High-temperature-resistant wear-resistant paint, denitration flue coating structure and construction process |
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| CN210045380U (en) * | 2019-04-15 | 2020-02-11 | 江苏盛弘百汇电力科技工程有限公司 | Novel high-temperature-resistant, wear-resistant and corrosion-resistant corundum tortoise shell net lining |
| CN114671706A (en) * | 2022-05-13 | 2022-06-28 | 郑州工大建材有限公司 | Thermal insulation coating based on inorganic plasticized microporous particulate material and application |
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