CN115160888A - High-temperature far-infrared insulating paint, preparation method thereof and application thereof in heating furnace - Google Patents
High-temperature far-infrared insulating paint, preparation method thereof and application thereof in heating furnace Download PDFInfo
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- CN115160888A CN115160888A CN202210851084.4A CN202210851084A CN115160888A CN 115160888 A CN115160888 A CN 115160888A CN 202210851084 A CN202210851084 A CN 202210851084A CN 115160888 A CN115160888 A CN 115160888A
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- temperature far
- far infrared
- insulating paint
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/32—Casings
- F27B9/34—Arrangements of linings
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- 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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- 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
- C08K2003/2289—Oxides; Hydroxides of metals of cobalt
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a high-temperature far infrared insulating paint, a preparation method thereof and application thereof in a heating furnace, wherein the preparation method of the high-temperature far infrared insulating paint comprises the following steps: weighing the following raw materials in parts by weight: 20-30 parts of chromium oxide chloride, 10-15 parts of silicon carbide, 10-15 parts of cobalt oxide, 10-15 parts of brown corundum and 2000-3000 parts of special colloidal solution; (2) The chromium oxide chloride, the silicon carbide, the cobalt oxide and the brown corundum are fully mixed, then the mixed material is poured into the special colloidal solution, and the raw materials are mixed and stirred uniformly by an electric stirrer until the mixture is in a creamy yellow liquid state. The high-temperature far infrared insulating paint is used for coating or spraying the stepping heating furnace in the wide and thick plate factory, the fuel consumption is reduced by about 0.1GJ/t, and the high-temperature far infrared insulating paint plays a key role in energy conservation and consumption reduction.
Description
Technical Field
The invention relates to a coating and application thereof, in particular to a high-temperature far infrared insulating coating, a preparation method thereof and application thereof in a heating furnace.
Background
The invention mainly aims at solving the problem of high fuel consumption of the walking beam furnace in the metallurgical industry. The construction of the stepping heating furnace in the wide and thick plate factory is 2013, the service time is nearly 10 years, the damage of refractory materials in the furnace is serious, the heat preservation performance of the heating furnace is greatly reduced, and the fuel consumption of the heating furnace is high. The damaged refractory material in the furnace is repaired for many times by using the overhauling machine, but the effect is not obvious.
Disclosure of Invention
The invention aims to: the invention aims to provide a high-temperature far infrared insulating coating for reducing the burnup of a walking beam furnace, which improves the heat-insulating property of the walking beam furnace by spraying a novel heat-insulating coating so as to reduce the burnup of the walking beam furnace. The invention also aims to provide a preparation method of the high-temperature far infrared insulating paint and application of the high-temperature far infrared insulating paint in a stepping heating furnace.
The technical scheme is as follows: the preparation method of the high-temperature far infrared insulating coating comprises the following steps:
(1) Weighing the following raw materials in parts by weight: 20-30 parts of chromium oxide chloride, 10-15 parts of silicon carbide, 10-15 parts of cobalt oxide, 10-15 parts of brown corundum and 2000-3000 parts of special colloidal solution;
(2) The chromium oxide chloride, the silicon carbide, the cobalt oxide and the brown corundum are fully mixed, then the mixed material is poured into the special colloidal solution, and the raw materials are mixed and stirred uniformly by an electric stirrer until the mixture is in a creamy yellow liquid state.
In the preparation method of the high-temperature far infrared insulating coating, the special colloidal solution is organic epoxy heat-insulating paint.
The high-temperature far infrared insulating coating is prepared by the preparation method.
The high-temperature far infrared insulating paint is applied to a stepping heating furnace.
The application is to paint or spray the high-temperature far infrared insulating paint in the stepping heating furnace.
The application method of the high-temperature far infrared insulating coating in the stepping heating furnace comprises the following steps:
(1) Weighing the following raw materials in parts by weight: 20-30 parts of chromium oxide chloride, 10-15 parts of silicon carbide, 10-15 parts of cobalt oxide, 10-15 parts of brown corundum and 2000-3000 parts of special colloidal solution;
(2) Fully mixing chromium oxide chloride, silicon carbide, cobalt oxide and brown corundum, pouring the mixed material into a special colloidal solution, and uniformly mixing and stirring the raw materials by using an electric stirrer until the raw materials are in a creamy yellow liquid state;
(3) Taking the milky yellow liquid coating obtained in the last step, and repairing the damaged refractory material in the furnace;
(4) And spraying the full-coverage heat-preservation coating in the furnace.
Before 2019, the comprehensive average fuel consumption of the walking beam furnace is about 1.39GJ/t, after 2019, the fuel consumption is continuously increased, and the average fuel consumption is as high as about 1.52GJ/t and can reach 1.67GJ/t at most.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: (1) The full-coverage novel material spraying is carried out on the stepping heating furnace of the wide and thick plate factory, the fuel consumption of the stepping heating furnace of the wide and thick plate factory is reduced by about 0.1GJ/t, and the coating plays a key role in energy conservation and consumption reduction. (2) The high-temperature far infrared insulating coating can repair the damage of refractory materials in the stepping heating furnace, improve the heat-insulating property of the stepping heating furnace and reduce the fuel consumption of the stepping heating furnace.
Drawings
FIG. 1 shows a heating furnace without thermal insulation coating;
FIG. 2 shows the shadow parts on three sides of the heating furnace as the heat-insulating coating spraying areas, which are 1200 square meters in total.
Detailed Description
Example 1
Chromium oxide chloride, silicon carbide, cobalt oxide and brown corundum are all conventional commercial products. The special colloidal solution is SM organic epoxy heat-insulating paint of Senmu Co.
(1) Weighing 30kg of chromium oxide chloride, 15kg of silicon carbide, 15kg of cobalt oxide, 10kg of brown corundum and 3000kg of special colloidal solution;
(2) Firstly weighing 30kg of chromic oxide chloride, 15kg of silicon carbide, 15kg of cobalt oxide and 10kg of brown corundum, and fully mixing, wherein the total weight is 70kg. Pouring the mixed material into 3000kg of special colloidal solution, and uniformly mixing and stirring the raw materials by using an electric stirrer until the raw materials are stirred to be in a creamy yellow liquid state;
(3) Taking the milky yellow liquid coating obtained in the last step, and repairing the damaged refractory material in the furnace;
(4) And (3) carrying out full-coverage type thermal insulation coating spraying on the interior of the furnace, wherein the full-coverage type thermal insulation coating spraying comprises a furnace wall, a walking beam and the like.
The schematic diagram of the heating furnace without heat-insulating coating is shown in figure 1, and the schematic diagram of the heating furnace after coating is shown in figure 2.
Example 2
(1) Weighing raw materials of 20kg of chromic oxide chloride, 10kg of silicon carbide, 10kg of cobalt oxide, 15kg of brown corundum and 2000kg of special colloidal solution;
(2) Firstly, taking chromium oxide chloride, silicon carbide, cobalt oxide and brown corundum, and fully mixing. Pouring the mixed material into a special colloidal solution, and uniformly mixing and stirring the raw materials by using an electric stirrer until the raw materials are stirred to be in a creamy yellow liquid state;
(3) Taking the milky yellow liquid coating obtained in the last step, and repairing the damaged refractory material in the furnace;
(4) And (4) spraying a full-coverage heat-insulating coating in the furnace, wherein the coating comprises a furnace wall, a walking beam and the like.
Example 3
(1) Weighing 25kg of raw materials of chromium oxide chloride, 12kg of silicon carbide, 15kg of cobalt oxide, 15kg of brown fused alumina and 3000kg of special colloidal solution;
(2) Firstly, weighing chromium oxide chloride, silicon carbide, cobalt oxide and brown corundum, and fully mixing. Pouring the mixed material into a special colloidal solution, and uniformly mixing and stirring the raw materials by using an electric stirrer until the raw materials are stirred to be in a creamy yellow liquid state;
(3) Taking the milky yellow liquid coating obtained in the last step, and repairing the damaged refractory material in the furnace;
(4) And (4) spraying a full-coverage heat-insulating coating in the furnace, wherein the coating comprises a furnace wall, a walking beam and the like.
Example 4
The high-temperature far infrared insulating paint prepared in the embodiment 1 is sprayed on a heating furnace 1# in 2021, 3 months, and the using effect is tracked.
And selecting 22 shifts in total, wherein the specifications are close to those before spraying, and the average fuel consumption is 1.54GJ/t before spraying and 1.44GJ/t after spraying, and is reduced by 0.1GJ/t by comparing the fuel consumption.
Selecting the first shift production time period, wherein the first shift production time period is close to the specification before spraying, comparing the fuel consumption, the average fuel consumption before spraying is 1.53GJ/t, the average fuel consumption after spraying is 1.42GJ/t, and reducing the fuel consumption by 0.11GJ/t.
Selecting the ship plate steel grade, and comparing the fuel consumption with the specification before spraying, wherein the average fuel consumption before spraying is 1.51GJ/t, the average fuel consumption after spraying is 1.39GJ/t, and the fuel consumption is reduced by 0.12GJ/t.
Claims (6)
1. A preparation method of a high-temperature far infrared insulating coating is characterized by comprising the following steps:
(1) Weighing the following raw materials in parts by weight: 20-30 parts of chromium oxide chloride, 10-15 parts of silicon carbide, 10-15 parts of cobalt oxide, 10-15 parts of brown corundum and 2000-3000 parts of special colloidal solution;
(2) The chromium oxide chloride, the silicon carbide, the cobalt oxide and the brown corundum are fully mixed, then the mixed material is poured into the special colloidal solution, and the raw materials are mixed and stirred uniformly by an electric stirrer until the mixture is in a creamy yellow liquid state.
2. The preparation method of the high-temperature far infrared insulating paint according to claim 1, characterized in that the special colloidal solution is organic epoxy insulating paint.
3. A high-temperature far-infrared insulating paint characterized by being produced by the production method of claim 1.
4. Use of the high temperature far infrared insulating paint of claim 3 in a step-type heating furnace.
5. The use according to claim 4, wherein the high temperature far infrared insulating paint is painted or sprayed in a step-type heating furnace.
6. An application method of a high-temperature far infrared insulating coating in a stepping heating furnace is characterized by comprising the following steps:
(1) Weighing the following raw materials in parts by weight: 20-30 parts of chromium oxide chloride, 10-15 parts of silicon carbide, 10-15 parts of cobalt oxide, 10-15 parts of brown corundum and 2000-3000 parts of special colloidal solution;
(2) Fully mixing chromium oxide chloride, silicon carbide, cobalt oxide and brown corundum, pouring the mixed material into a special colloidal solution, and uniformly mixing and stirring the raw materials by using an electric stirrer until the raw materials are in a creamy yellow liquid state;
(3) Taking the milky yellow liquid paint obtained in the last step, and repairing the damaged refractory material in the furnace;
(4) And spraying the full-coverage heat-insulating coating in the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210851084.4A CN115160888B (en) | 2022-07-19 | 2022-07-19 | High-temperature far infrared insulating paint, preparation method thereof and application thereof in heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210851084.4A CN115160888B (en) | 2022-07-19 | 2022-07-19 | High-temperature far infrared insulating paint, preparation method thereof and application thereof in heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115160888A true CN115160888A (en) | 2022-10-11 |
| CN115160888B CN115160888B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210851084.4A Active CN115160888B (en) | 2022-07-19 | 2022-07-19 | High-temperature far infrared insulating paint, preparation method thereof and application thereof in heating furnace |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085890A (en) * | 2007-07-05 | 2007-12-12 | 北京北科威斯迈技术发展有限公司 | High temperature heat radiation coating and preparing method thereof |
| CN102992813A (en) * | 2012-12-17 | 2013-03-27 | 四川科达节能技术有限公司 | High-temperature glaze coating, preparation method thereof, binder and using method of coating |
| CN111548701A (en) * | 2020-04-30 | 2020-08-18 | 天津大学 | Coating capable of reducing heat dissipation of surface of thermal equipment and preparation method thereof |
| CN111559907A (en) * | 2020-05-29 | 2020-08-21 | 河南爱邦科技有限公司 | Boiler anti-coking anti-corrosion treating agent and preparation method and application thereof |
| CN113388314A (en) * | 2021-06-28 | 2021-09-14 | 广东骏丰频谱股份有限公司 | Far infrared spectrum generator and preparation method thereof |
| CN114455958A (en) * | 2022-02-21 | 2022-05-10 | 山东金泰高温材料有限公司 | Heating furnace refractory material rapid repairing material, method and system |
-
2022
- 2022-07-19 CN CN202210851084.4A patent/CN115160888B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085890A (en) * | 2007-07-05 | 2007-12-12 | 北京北科威斯迈技术发展有限公司 | High temperature heat radiation coating and preparing method thereof |
| CN102992813A (en) * | 2012-12-17 | 2013-03-27 | 四川科达节能技术有限公司 | High-temperature glaze coating, preparation method thereof, binder and using method of coating |
| CN111548701A (en) * | 2020-04-30 | 2020-08-18 | 天津大学 | Coating capable of reducing heat dissipation of surface of thermal equipment and preparation method thereof |
| CN111559907A (en) * | 2020-05-29 | 2020-08-21 | 河南爱邦科技有限公司 | Boiler anti-coking anti-corrosion treating agent and preparation method and application thereof |
| CN113388314A (en) * | 2021-06-28 | 2021-09-14 | 广东骏丰频谱股份有限公司 | Far infrared spectrum generator and preparation method thereof |
| CN114455958A (en) * | 2022-02-21 | 2022-05-10 | 山东金泰高温材料有限公司 | Heating furnace refractory material rapid repairing material, method and system |
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| CN115160888B (en) | 2023-08-15 |
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