CN115072968A - Heat-insulating sealing method for furnace kiln high-temperature brick flue and heat-insulating paint for sealing high-temperature brick flue - Google Patents
Heat-insulating sealing method for furnace kiln high-temperature brick flue and heat-insulating paint for sealing high-temperature brick flue Download PDFInfo
- Publication number
- CN115072968A CN115072968A CN202210646666.9A CN202210646666A CN115072968A CN 115072968 A CN115072968 A CN 115072968A CN 202210646666 A CN202210646666 A CN 202210646666A CN 115072968 A CN115072968 A CN 115072968A
- Authority
- CN
- China
- Prior art keywords
- heat
- insulating
- flue
- parts
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/425—Preventing corrosion or erosion
-
- 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
-
- 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
Abstract
The invention provides a heat preservation sealing method of a kiln high-temperature brick flue, which is applied to the technical field of glass production kilns, and the heat preservation sealing method of the high-temperature brick flue comprises the following heat preservation sealing steps: the composite silicate heat-insulating paint is prepared by using the loosened sepiolite as a main raw material and adding expanded perlite, expanded vermiculite, floating beads, fly ash, diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber; using water glass as a main adhesive, and preparing the composite silicate heat-insulating coating into a paste-like heat-insulating coating through pulping, foaming and stirring processes; the method for sealing the heat preservation of the high-temperature brick flue of the furnace kiln can reliably carry out heat preservation and sealing on the wall body of the flue, the arch joint and other positions, reduce cold air suction, reduce the residual oxygen content of waste gas, effectively reduce the standard condition concentration of pollutant discharge, greatly improve the control of a melting process and improve the quality of glass.
Description
Technical Field
The invention belongs to the technical field of glass production kilns, and particularly relates to a heat-insulating sealing method for a high-temperature brick flue of a kiln.
Background
During the operation of a glass production kiln, the high-temperature flue is corroded along with the emission of flue gas and changes in flue gas temperature, so that cracks appear at the positions of joints of a high-temperature flue wall body and a crown, cold air permeates into the flue, and the control of the flue gas temperature and related processes is influenced. And during the operation of the kiln, the cracks are easy to appear at the positions of a flue wall body, a flue arch joint and the like due to the expansion of flue bricks or the erosion of rainwater and the like of the flue bricks and the external heat insulation, so that external cold air enters the flue, the residual oxygen content of waste gas is increased, the control of environmental protection data is influenced, the smoke temperature is reduced, the residual heat generated energy is influenced, the suction force of the flue is weakened, and the accuracy of detecting the smoke data in the kiln is influenced. The main disadvantages of the prior art devices are as follows: (1) no good measure for protecting the outside of the flue; (2) no effective cracking prevention measures are taken for the external heat-insulating layer of the flue; (3) the later part falls off due to the unqualified bonding of the heat-insulating material. The prior art barriers are as follows: (1) the reason of poor heat insulation and sealing of the flue is not analyzed and summarized in a targeted manner; (2) there is no reasonable material selection and protection facility.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects of the prior art, the furnace high-temperature brick flue heat-insulating sealing method has simple steps, can reliably perform heat-insulating sealing on positions such as a flue wall body and an arch joint, reduces cold air suction, reduces the residual oxygen content of waste gas, effectively reduces the concentration of pollution emission standard conditions, reduces the environmental protection input cost, simultaneously improves the temperature of flue gas, further improves the generated energy of the flue gas, greatly improves the control of a melting process, and improves the glass quality.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a heat-insulating sealing method for a high-temperature brick flue of a kiln, which comprises the following steps:
s1, preparing a composite silicate heat-insulating coating, namely adding expanded perlite, expanded vermiculite, floating beads, fly ash, diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber into a main raw material of loosened sepiolite to prepare the composite silicate heat-insulating coating;
s2, taking water glass as a main adhesive, and preparing the composite silicate heat-insulating coating into a paste-like heat-insulating coating through pulping, foaming and stirring processes;
s3, removing heavy scales on the surface of the heat-preservation flue, and spraying the paste heat-preservation coating on the surface of the heat-preservation flue in multiple layers by adopting a spraying method;
and S4, before spraying the last layer of paste-like heat-insulating paint, sticking glass fiber mesh cloth on the surface of the sprayed paste-like heat-insulating paint, spraying the last layer of paste-like heat-insulating paint to reach the required thickness of the heat-insulating layer, press polishing after the surface of the heat-insulating layer is slightly solidified, and performing maintenance treatment to complete sealing, heat-insulating and sealing treatment of the high-temperature brick flue, wherein multiple layers of paste-like heat-insulating paints form the heat-insulating layer.
When the paste heat-insulating coating is sprayed on the surface of a heat-insulating flue in multiple layers by adopting a spraying method, the thickness of the first coating is not more than 5mm, and after the first coating is dried, a second coating is coated, wherein the thickness of the second coating is 8-11 mm, and the thickness of the coating behind the third coating is 3-5 mm.
When the composite silicate heat-insulating coating is prepared, the parts by weight of the expanded perlite, the expanded vermiculite, the floating bead and the fly ash are respectively 30-40 parts, 10-20 parts and 10-20 parts.
When the composite silicate heat-insulating coating is prepared, the weight parts of diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber are 60-80 parts, 5-10 parts and 5-10 parts respectively.
When the composite silicate heat-insulating coating is prepared, the rest is sepiolite.
When the paste heat-insulating coating is prepared, the weight part of the water glass is between 2 and 5.
And covering a steel plate with the thickness of 2-3 mm on the surface of the heat-insulating layer at the position with the rain erosion risk as a shell, fully welding the abutted seams of the shell, performing rust removal painting treatment on the outer layer, and filling heat-insulating cotton in the gap between the shell and the heat-insulating layer.
The invention also relates to a high-temperature brick flue sealing heat-insulating coating which is simple in material, can reliably carry out heat-insulating sealing on positions such as flue wall bodies, arch joints and the like, reduces cold air suction, reduces waste gas residual oxygen, effectively reduces pollution emission standard condition concentration, reduces environmental protection input cost, simultaneously improves flue gas temperature, further improves flue gas power generation capacity, greatly improves melting process control and improves glass quality.
The composite silicate heat-insulating coating comprises 30-40 parts of expanded perlite, 30-40 parts of expanded vermiculite, 10-20 parts of floating beads and 10-20 parts of fly ash by weight;
the weight parts of the diatomite, the asbestos, the glass wool, the mineral wool and the aluminum silicate fiber are respectively 60-80 parts, 5-10 parts and 5-10 parts.
The balance of the composite silicate heat-insulating coating is sepiolite.
By adopting the technical scheme of the invention, the working principle and the beneficial effects are as follows:
the invention provides a novel composite silicate heat-insulating coating and a novel paste heat-insulating coating, and a heat-insulating sealing layer is formed on a high-temperature brick flue by adopting the paste heat-insulating coating. The heat-insulating layer formed by the process belongs to an environment-friendly product: no toxicity, no harm, no environmental pollution, no aging, acid resistance, alkali resistance, oil resistance and corrosion resistance; the energy-saving effect is good: the heat-insulating material has low heat conductivity coefficient and good heat-insulating property, and is integrated with the flue after being dried, so that heat loss caused by a plurality of heat bridges in the traditional material is avoided; the adhesive force is strong: the coating does not fall off, crack or hollowness after being formed, and simultaneously has the bonding advantage of replacement because the glass fiber mesh cloth is added as a framework; the service life is long: the service life of the material is 2-3 times of that of the traditional heat insulation material, and the material is integrated with the flue brick material, so that the heat insulation effect is achieved, and the corrosion prevention effect is achieved; the construction is simple and convenient: the heat-insulating layer only needs to be coated, production stop is not needed, no auxiliary materials are added, and the appearance is smooth and attractive; the comprehensive cost is low: the heat-insulating material has long service life, good energy-saving effect, thin heat-insulating thickness and no need of adding other auxiliary materials, so the comprehensive cost is lower than that of other heat-insulating materials. According to the method, the high-quality heat-insulation sealing layer is formed, cold air is prevented from permeating into a flue, the residual oxygen amount in waste gas is reduced, the standard condition concentration of the waste gas is effectively reduced, the environmental-friendly investment cost is reduced, in addition, the smoke temperature heat loss is reduced, the smoke waste heat utilization rate is improved, and the waste heat generating capacity is increased; meanwhile, the entering of cold air is reduced, the smoke resistance is effectively reduced, the suction force to the smoke of the kiln is enhanced, the kiln pressure building risk is reduced, and the kiln pressure control is facilitated; in addition, can prevent effectively that the outer heat preservation of later stage from receiving the rainwater to corrode or the expansion fracture leads to the emergence of cold air admission problem. The method for sealing the high-temperature brick flue of the furnace kiln in the heat preservation manner has simple steps, can reliably carry out heat preservation sealing on the positions of the flue wall body, the arch joint and the like, reduces cold air suction, reduces the residual oxygen content of waste gas, effectively reduces the standard condition concentration of pollution emission, reduces the environmental protection input cost, simultaneously improves the flue gas temperature, further improves the flue gas generating capacity, greatly improves the control of the melting process, and improves the glass quality.
Detailed Description
The following description of the embodiments will explain the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations between the components, the functions and operation principles of the components, and the like, in further detail:
the invention relates to a heat-insulating sealing method for a high-temperature brick flue of a kiln, which comprises the following steps:
s1, preparing a composite silicate heat-insulating coating, namely adding expanded perlite, expanded vermiculite, floating beads, fly ash, diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber into a main raw material of loosened sepiolite to prepare the composite silicate heat-insulating coating; s2, taking water glass as a main adhesive, and preparing the composite silicate heat-insulating coating into a paste-like heat-insulating coating through pulping, foaming and stirring processes; s3, removing heavy scales on the surface of the heat-preservation flue, and spraying the paste heat-preservation coating on the surface of the heat-preservation flue in multiple layers by adopting a spraying method; and S4, before spraying the last layer of paste-like heat-insulating paint, sticking glass fiber gridding cloth on the surface of the sprayed paste-like heat-insulating paint, spraying the last layer of paste-like heat-insulating paint again to reach the required thickness of the heat-insulating layer, performing calendaring and curing treatment after the surface of the heat-insulating layer is slightly condensed, thus completing sealing, heat-insulating and sealing treatment of the high-temperature brick flue, and forming the heat-insulating layer by multiple layers of paste-like heat-insulating paints. The steps provide a brand new technical scheme aiming at the defects in the prior art, not only provide a new composite silicate heat-insulating coating, but also provide a new paste heat-insulating coating, and the paste heat-insulating coating is adopted to form a heat-insulating sealing layer for a high-temperature brick flue. The heat-insulating layer formed by the process belongs to an environment-friendly product: no toxicity, no harm, no environmental pollution, no aging, acid resistance, alkali resistance, oil resistance and corrosion resistance; the energy-saving effect is good: the heat-insulating material has low heat conductivity coefficient and good heat-insulating property, and is integrated with the flue after being dried, so that heat loss caused by a plurality of heat bridges in the traditional material is avoided; the adhesive force is strong: the coating does not fall off, crack or hollowness after being formed, and meanwhile, the glass fiber gridding cloth is added as a framework, so that the coating has the advantage of replacement bonding; the service life is long: the service life of the material is 2-3 times of that of the traditional heat insulation material, and the material is integrated with the flue brick material, so that the heat insulation effect is achieved, and the corrosion prevention effect is achieved; the construction is simple and convenient: the heat-insulating layer only needs to be coated, production stop is not needed, no auxiliary materials are added, and the appearance is smooth and attractive; the comprehensive cost is low: the heat-insulating material has long service life, good energy-saving effect, thin heat-insulating thickness and no need of adding other auxiliary materials, so the comprehensive cost is lower than that of other heat-insulating materials. According to the method, the high-quality heat-insulation sealing layer is formed, cold air is prevented from permeating into a flue, the residual oxygen amount in waste gas is reduced, the standard condition concentration of the waste gas is effectively reduced, the environmental-friendly investment cost is reduced, in addition, the smoke temperature heat loss is reduced, the smoke waste heat utilization rate is improved, and the waste heat generating capacity is increased; meanwhile, the entering of cold air is reduced, the smoke resistance is effectively reduced, the suction force to the smoke of the kiln is enhanced, the kiln pressure building risk is reduced, and the kiln pressure control is facilitated; in addition, can prevent effectively that outer heat preservation of later stage from receiving the rainwater erosion or the expansion crack leads to the emergence of cold air entering problem. The method for sealing the heat preservation of the high-temperature brick flue of the furnace kiln has simple steps, can reliably seal the positions of the flue wall, the arch joint and the like in a heat preservation way, reduces cold air suction, reduces the residual oxygen content of waste gas, effectively reduces the concentration of pollution emission standard conditions, reduces the investment cost of environmental protection, improves the temperature of flue gas, further improves the generated energy of the flue gas, greatly improves the control of a melting process, and improves the quality of glass.
When the paste heat-insulating coating is sprayed on the surface of a heat-insulating flue in multiple layers by adopting a spraying method, the thickness of the first coating is not more than 5mm, and after the first coating is dried, a second coating is coated, wherein the thickness of the second coating is 8-11 mm, and the thickness of the coating behind the third coating is 3-5 mm. And in the steps, multiple layers of paste heat-insulating coatings are sprayed in sequence, after each layer of sprayed paste heat-insulating coating is dried, another layer of paste heat-insulating coating is sprayed, the thickness of each layer of paste heat-insulating coating is limited, and the phenomenon that each layer of paste heat-insulating coating falls off due to too thick thickness is avoided. The whole thickness of the heat-insulating layer formed by the multiple layers of paste heat-insulating coatings is controlled by the number of layers of the paste heat-insulating coatings.
When the composite silicate heat-insulating coating is prepared, the parts by weight of the expanded perlite, the expanded vermiculite, the floating bead and the fly ash are respectively 30-40 parts, 10-20 parts and 10-20 parts. When the composite silicate heat-insulating coating is prepared, the weight parts of diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber are 60-80 parts, 5-10 parts and 5-10 parts respectively. When the composite silicate heat-insulating coating is prepared, the rest is sepiolite. The weight ratio of various materials of the composite silicate heat-insulating coating is limited, so that the high-quality composite silicate heat-insulating coating is formed. The composite silicate heat-insulating coating is used. After the flue heat-insulating layer is formed, reliable heat-insulating sealing is realized on the kiln flue, cold air is prevented from permeating into the flue, the residual oxygen content in waste gas is reduced, the standard condition concentration of the waste gas is reduced, and the environmental-friendly investment cost is reduced; meanwhile, the cold air entering the flue is reduced, the smoke resistance in the flue is reduced, the suction force to the smoke of the kiln is enhanced, the kiln pressure-building risk is reduced, the kiln pressure control is facilitated, and the overall performance of the kiln is improved.
When the paste-like heat-insulating coating is prepared, the weight portion of the water glass is between 2 and 5. According to the arrangement, when the water glass is used as a main adhesive and is mixed with the composite silicate heat-insulating coating to form the paste heat-insulating coating, the paste heat-insulating coating needs to be subjected to mechanical pulping, foaming and stirring processes and then is sprayed on the inner surface of the flue by a spraying method until the preset heat-insulating layer thickness is formed, and the use performance of the flue is improved.
And covering a steel plate with the thickness of 2-3 mm on the surface of the heat-insulating layer at the position with the rainwater erosion risk as a shell, fully welding the abutted seams of the shell, performing rust removal painting treatment on the outer layer, and filling heat-insulating cotton in a gap between the shell and the heat-insulating layer. The steps effectively improve the rainwater erosion resistance.
The invention also relates to a high-temperature brick flue sealing heat-insulating coating which is simple in material, can reliably carry out heat-insulating sealing on positions such as a flue wall body and a arch joint, reduces cold air suction, reduces the residual oxygen content of waste gas, effectively reduces the standard condition concentration of pollution emission, reduces the environmental protection investment cost, simultaneously improves the flue gas temperature, further improves the flue gas power generation amount, greatly improves the control of a melting process, and improves the glass quality.
The high-temperature brick flue sealing heat-insulating coating comprises a composite silicate heat-insulating coating, wherein the composite silicate heat-insulating coating is prepared by taking decomposed sepiolite as a main raw material and adding expanded perlite, expanded vermiculite, floating beads, fly ash, diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber. The composite silicate heat-insulating coating comprises, by weight, 30-40 parts of expanded perlite, 30-40 parts of expanded vermiculite, 10-20 parts of floating beads and 10-20 parts of fly ash; the weight parts of the diatomite, the asbestos, the glass wool, the mineral wool and the aluminum silicate fiber are respectively 60-80 parts, 5-10 parts and 5-10 parts. The balance of the composite silicate heat-insulating coating is sepiolite. The weight ratio of various materials of the composite silicate heat-insulating coating is limited, so that the high-quality composite silicate heat-insulating coating is formed. The composite silicate heat-insulating coating is used. After the flue heat-insulating layer is formed, reliable heat-insulating sealing is realized on the kiln flue, cold air is prevented from permeating into the flue, the residual oxygen content in waste gas is reduced, the standard condition concentration of the waste gas is reduced, and the environmental-friendly investment cost is reduced; meanwhile, the cold air entering the flue is reduced, the smoke resistance in the flue is reduced, the suction force to the smoke of the kiln is enhanced, the kiln pressure-building risk is reduced, the kiln pressure control is facilitated, and the overall performance of the kiln is improved.
The invention provides a novel composite silicate heat-insulating coating and a novel paste heat-insulating coating, and a heat-insulating sealing layer is formed on a high-temperature brick flue by adopting the paste heat-insulating coating. The heat-insulating layer formed by the process belongs to an environment-friendly product: no toxicity, no harm, no environmental pollution, no aging, acid resistance, alkali resistance, oil resistance and corrosion resistance; the energy-saving effect is good: the heat-insulating material has low heat conductivity coefficient and good heat-insulating property, and is integrated with the flue after being dried, so that heat loss caused by a plurality of heat bridges in the traditional material is avoided; the adhesive force is strong: the coating does not fall off, crack or hollowness after being formed, and simultaneously has the bonding advantage of replacement because the glass fiber mesh cloth is added as a framework; the service life is long: the service life of the material is 2-3 times of that of the traditional heat insulation material, and the material is integrated with the flue brick material, so that the heat insulation effect is achieved, and the corrosion prevention effect is achieved; the construction is simple and convenient: the heat-insulating layer only needs to be coated, production stop is not needed, no auxiliary materials are added, and the appearance is smooth and attractive; the comprehensive cost is low: the heat-insulating material has long service life, good energy-saving effect, thin heat-insulating thickness and no need of adding other auxiliary materials, so the comprehensive cost is lower than that of other heat-insulating materials. According to the method, the high-quality heat-insulation sealing layer is formed, cold air is prevented from permeating into a flue, the residual oxygen amount in waste gas is reduced, the standard condition concentration of the waste gas is effectively reduced, the environmental-friendly investment cost is reduced, in addition, the smoke temperature heat loss is reduced, the smoke waste heat utilization rate is improved, and the waste heat generating capacity is increased; meanwhile, the entering of cold air is reduced, the smoke resistance is effectively reduced, the suction force to the smoke of the kiln is enhanced, the kiln pressure building risk is reduced, and the kiln pressure control is facilitated; in addition, can prevent effectively that outer heat preservation of later stage from receiving the rainwater erosion or the expansion crack leads to the emergence of cold air entering problem. The method for sealing the heat preservation of the high-temperature brick flue of the furnace kiln has simple steps, can reliably seal the positions of the flue wall, the arch joint and the like in a heat preservation way, reduces cold air suction, reduces the residual oxygen content of waste gas, effectively reduces the concentration of pollution emission standard conditions, reduces the investment cost of environmental protection, improves the temperature of flue gas, further improves the generated energy of the flue gas, greatly improves the control of a melting process, and improves the quality of glass.
The invention is described above by way of example, and it is obvious that the specific implementation of the invention is not limited by the above-described manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other occasions without modification.
Claims (10)
1. A method for sealing the heat preservation of a high-temperature brick flue of a furnace kiln is characterized by comprising the following steps: the heat-insulating sealing method of the high-temperature brick flue comprises the following heat-insulating sealing steps:
s1, preparing a composite silicate heat-insulating coating, namely adding expanded perlite, expanded vermiculite, floating beads, fly ash, diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber into a main raw material of loosened sepiolite to prepare the composite silicate heat-insulating coating;
s2, taking water glass as a main adhesive, and preparing the composite silicate heat-insulating coating into a paste-like heat-insulating coating through pulping, foaming and stirring processes;
s3, removing heavy scales on the surface of the heat-preservation flue, and spraying the paste heat-preservation coating on the surface of the heat-preservation flue in multiple layers by adopting a spraying method;
and S4, before spraying the last layer of paste-like heat-insulating paint, sticking glass fiber mesh cloth on the surface of the sprayed paste-like heat-insulating paint, spraying the last layer of paste-like heat-insulating paint to reach the required thickness of the heat-insulating layer, press polishing after the surface of the heat-insulating layer is slightly solidified, and performing maintenance treatment to complete sealing, heat-insulating and sealing treatment of the high-temperature brick flue, wherein multiple layers of paste-like heat-insulating paints form the heat-insulating layer.
2. The heat-insulating sealing method for the high-temperature brick flue of the furnace kiln according to claim 1, characterized in that: when the paste-like heat-insulating coating is sprayed on the surface of a heat-insulating flue in multiple layers by adopting a spraying method, the thickness of the first coating is not more than 5mm, a second coating is coated after the first coating is dried, the thickness of the second coating is 8-11 mm, and the thickness of the coating behind the third coating is 3-5 mm.
3. The heat-insulating sealing method for the high-temperature brick flue of the kiln as claimed in claim 2, characterized in that: when the composite silicate heat-insulating coating is prepared, the parts by weight of the expanded perlite, the expanded vermiculite, the floating bead and the fly ash are respectively 30-40 parts, 10-20 parts and 10-20 parts.
4. The heat-insulating sealing method for the high-temperature brick flue of the furnace kiln according to claim 3, characterized in that: when the composite silicate heat-insulating coating is prepared, the weight parts of diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber are respectively 60-80 parts, 5-10 parts and 5-10 parts.
5. The heat-insulating sealing method for the high-temperature brick flue of the kiln according to claim 4, characterized in that: when the composite silicate heat-insulating coating is prepared, the rest is sepiolite.
6. The heat-insulating sealing method for the high-temperature brick flue of the furnace kiln according to claim 1 or 5, characterized in that: when the paste heat-insulating coating is prepared, the weight part of the water glass is between 2 and 5.
7. The heat-insulating sealing method for the high-temperature brick flue of the furnace kiln according to claim 1 or 5, characterized in that: and covering a steel plate with the thickness of 2-3 mm on the surface of the heat-insulating layer at the position with the rain erosion risk as a shell, fully welding the abutted seams of the shell, performing rust removal painting treatment on the outer layer, and filling heat-insulating cotton in the gap between the shell and the heat-insulating layer.
8. The high-temperature brick flue sealing and heat-insulating coating is characterized by comprising the following components in parts by weight: the high-temperature brick flue sealing heat-insulating coating comprises a composite silicate heat-insulating coating, wherein the composite silicate heat-insulating coating is prepared by taking decomposed sepiolite as a main raw material and adding expanded perlite, expanded vermiculite, floating beads, fly ash, diatomite, asbestos, glass wool, mineral wool and aluminum silicate fiber.
9. The high-temperature brick flue sealing and heat-insulating coating as claimed in claim 8, characterized in that: the composite silicate heat-insulating coating comprises 30-40 parts of expanded perlite, 30-40 parts of expanded vermiculite, 10-20 parts of floating beads and 10-20 parts of fly ash by weight;
the weight parts of the diatomite, the asbestos, the glass wool, the mineral wool and the aluminum silicate fiber are respectively 60-80 parts, 5-10 parts and 5-10 parts.
10. The high-temperature brick flue sealing and heat-insulating coating as claimed in claim 8, characterized in that: the balance of the composite silicate heat-insulating coating is sepiolite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210646666.9A CN115072968A (en) | 2022-06-08 | 2022-06-08 | Heat-insulating sealing method for furnace kiln high-temperature brick flue and heat-insulating paint for sealing high-temperature brick flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210646666.9A CN115072968A (en) | 2022-06-08 | 2022-06-08 | Heat-insulating sealing method for furnace kiln high-temperature brick flue and heat-insulating paint for sealing high-temperature brick flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115072968A true CN115072968A (en) | 2022-09-20 |
Family
ID=83251288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210646666.9A Pending CN115072968A (en) | 2022-06-08 | 2022-06-08 | Heat-insulating sealing method for furnace kiln high-temperature brick flue and heat-insulating paint for sealing high-temperature brick flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115072968A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792290A (en) * | 2010-03-08 | 2010-08-04 | 蒋发学 | Composite silicate multifunctional paint and preparation method thereof |
| CN103059612A (en) * | 2012-12-28 | 2013-04-24 | 大连金洁建筑材料科技发展有限公司 | Thermal insulation coating |
| CN112430056A (en) * | 2020-11-30 | 2021-03-02 | 山东鲁阳浩特高技术纤维有限公司 | Heat-insulating coating, preparation method thereof and heat-insulating coating |
-
2022
- 2022-06-08 CN CN202210646666.9A patent/CN115072968A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792290A (en) * | 2010-03-08 | 2010-08-04 | 蒋发学 | Composite silicate multifunctional paint and preparation method thereof |
| CN103059612A (en) * | 2012-12-28 | 2013-04-24 | 大连金洁建筑材料科技发展有限公司 | Thermal insulation coating |
| CN112430056A (en) * | 2020-11-30 | 2021-03-02 | 山东鲁阳浩特高技术纤维有限公司 | Heat-insulating coating, preparation method thereof and heat-insulating coating |
Non-Patent Citations (1)
| Title |
|---|
| 寿崇琦;温达;: "隔热涂料的前世今生", 居业, no. 10, pages 426 - 435 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201096353Y (en) | Chimney inner wall composite anti-corrosive structure | |
| CN103089126B (en) | Green fire door core and manufacturing method of same and fire door | |
| CN201437084U (en) | Composite corrosion-resistant lining | |
| CN1216004C (en) | Fireproof insulative composite materials | |
| CN108286358B (en) | Composite heavy-duty corrosion-resistant structure for titanium plate chimney of thermal power plant and construction process | |
| CN102269417B (en) | A kind of anti-corrosion chimney and chimney anticorrosion etching method | |
| CN103524022A (en) | Method for building desulfurization exhaust chimney based on three-dimensional (3D) printing and borosilicate glass | |
| CN105951098B (en) | A kind of preparation method of thermal power plant flue enamel plate | |
| CN111187631B (en) | Repair material for mouth structure of coke oven machine and use method thereof | |
| CN115072968A (en) | Heat-insulating sealing method for furnace kiln high-temperature brick flue and heat-insulating paint for sealing high-temperature brick flue | |
| CN203513482U (en) | 3D (Three-dimensional) printer for constructing borosilicate glass desulfurizing smoke discharge chimney | |
| CN110154227A (en) | A kind of assembled architecture environmental protection and energy saving water proof type walling and its production method | |
| CN202274497U (en) | Corrosion-resistant structure for chimney liner | |
| CN211420051U (en) | Energy-saving coke oven top | |
| CN111575630B (en) | Concrete surface protection treatment method based on plasma thermal spraying technology | |
| CN110818435B (en) | Semidry gunning material and preparation method and application thereof | |
| CN104895392A (en) | Chimney multilayer corrosion prevention system compound rubber brick system | |
| CN205191613U (en) | Thermal power plant's chimney is discharged fume inner tube or inside lining and is used corrosion -resistant brick | |
| CN110724539A (en) | Energy-saving coke oven top | |
| CN113512316B (en) | Special high-temperature-resistant anticorrosive paint for chimney and composite resin glass fiber reinforced plastic spraying process | |
| CN205332249U (en) | Corrosion control system that inside lining was demolishd behind single chimney wet flue gas desulfurization of tradition | |
| CN217330877U (en) | Acid-resistant and corrosion-resistant quench tower | |
| CN214891270U (en) | Chimney deposition bucket after wet desulphurization | |
| CN107619261A (en) | A kind of self-cleaning heat-insulation external wall brick of lightweight and preparation method thereof | |
| CN219689759U (en) | Top combustion type hot air outlet damage repair structure of hot air furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |