CN110963811A - Cement-free spray paint - Google Patents
Cement-free spray paint Download PDFInfo
- Publication number
- CN110963811A CN110963811A CN201911405025.9A CN201911405025A CN110963811A CN 110963811 A CN110963811 A CN 110963811A CN 201911405025 A CN201911405025 A CN 201911405025A CN 110963811 A CN110963811 A CN 110963811A
- Authority
- CN
- China
- Prior art keywords
- parts
- bauxite
- powder
- cement
- preparing
- 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
- 239000003973 paint Substances 0.000 title claims description 11
- 239000007921 spray Substances 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 10
- 239000010431 corundum Substances 0.000 claims abstract description 10
- 239000011344 liquid material Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 5
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000000047 product Substances 0.000 claims abstract description 4
- 239000011265 semifinished product Substances 0.000 claims abstract description 4
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical group NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 abstract description 10
- 239000011819 refractory material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
A cement-free spray coating, which belongs to the technical field of refractory material production. The method is characterized by comprising the following steps: (1) preparing a base material: 1a, preparing and weighing the following materials in parts by mass; 1b, crushing bauxite, grinding the crushed bauxite into fine powder, and then preliminarily removing iron by an acid washing method to obtain the treated bauxite; 1c, crushing: adding corundum powder and silicon micropowder into bauxite, crushing and grinding the mixture, sieving the mixture, outputting the powder through a finished product conveyer belt, and packaging the powder to obtain a semi-finished product; (2) preparing a liquid material: preparing materials and weighing according to the following parts by mass; and 2b, mixing the materials, and packaging in bags to obtain the additive material bag. On the premise of not adding cement, the invention can also ensure that the spray coating has higher density and mechanical strength in a medium-high temperature use environment.
Description
Technical Field
The invention belongs to the technical field of refractory material production, and particularly relates to a cement-free spray coating.
Background
The spray paint is an unshaped refractory material which is constructed by a mechanical spraying method by using a pneumatic tool. Consists of refractory aggregate, powder and a bonding agent (or an additive). The sprayed material is compacted by repeated and continuous impact of the cement, aggregate and other composition materials in the spraying process, so that the sprayed layer has better density and mechanical strength. However, in the prior art, cement is required to be added as an important functional component in the preparation process of the refractory spray paint, so that the high enough normal temperature strength is obtained, but the strength of the spray paint containing the cement is obviously reduced at the medium temperature, and the strength and the erosion resistance are reduced at the high temperature. Therefore, the cement-containing spray paint cannot meet the use requirements at medium and high temperature stages. Simple removal of the cement component slows the rate of setting of the spray paint in use and does not provide effective base strength and hardness.
In view of this, the applicant designs a cement-free spray coating, which can effectively improve the compactness and mechanical strength of the spray coating in a medium-high temperature use environment on the premise of not adding cement.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cement-free spray coating which can have higher density and mechanical strength in a medium-high temperature use environment on the premise of not adding cement.
In order to solve the technical problems, the technical scheme of the invention is as follows: the cement-free spray coating is characterized by comprising the following steps:
(1) preparing a base material:
preparing materials and weighing according to the following parts by mass:
50-70 parts of bauxite;
10-15 parts of silicon micropowder;
20-30 parts of corundum powder;
1b, crushing bauxite, grinding the crushed bauxite into fine powder, and then preliminarily removing iron by an acid washing method to obtain the treated bauxite;
1c, crushing: adding corundum powder and silicon micropowder into bauxite, crushing and grinding the mixture, sieving the mixture, outputting the powder through a finished product conveyer belt, and packaging the powder to obtain a semi-finished product;
(2) preparing a liquid material:
preparing materials and weighing according to the following parts by mass:
5-12 parts of epoxy resin;
3-5 parts of a water reducing agent;
3-5 parts of boric anhydride;
15-25 parts of water;
and 2b, mixing the materials, and packaging in bags to obtain the additive material bag.
Preferably, the water reducing agent is melamine.
Preferably, the base material and the liquid material are mixed according to the mass ratio of 3-5:8-10 to prepare the spray coating, the spray coating is sprayed on the construction surface through spraying equipment, the construction surface is heated and sintered at the sintering temperature of 250 ℃ and 350 ℃, the temperature is kept for 2-3 hours, and then the mixture is naturally cooled to the room temperature.
Compared with the prior art, the invention has the beneficial effects that:
the cement-free spray coating can effectively improve the compactness and the mechanical strength of the spray coating in a medium-high temperature use environment on the premise of not adding cement.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
The invention relates to a cement-free spray coating, which comprises the following steps:
(1) preparing a base material:
preparing materials and weighing according to the following parts by mass:
50-70 parts of bauxite;
10-15 parts of silicon micropowder;
20-30 parts of corundum powder;
1b, crushing bauxite, grinding the crushed bauxite into fine powder, and then preliminarily removing iron by an acid washing method to obtain the treated bauxite;
1c, crushing: adding corundum powder and silicon micropowder into bauxite, crushing and grinding the mixture, sieving the mixture, outputting the powder through a finished product conveyer belt, and packaging the powder to obtain a semi-finished product;
(2) preparing a liquid material:
preparing materials and weighing according to the following parts by mass:
5-12 parts of epoxy resin;
3-5 parts of a water reducing agent;
3-5 parts of boric anhydride;
15-25 parts of water;
and 2b, mixing the materials, and packaging in bags to obtain the additive material bag.
Preferably, the water reducing agent is melamine.
Preferably, the base material and the liquid material are mixed according to the mass ratio of 3-5:8-10 to prepare the spray coating, the spray coating is sprayed on the construction surface through spraying equipment, the construction surface is heated and sintered at the sintering temperature of 250 ℃ and 350 ℃, the temperature is kept for 2-3 hours, and then the mixture is naturally cooled to the room temperature.
The specific examples of the base material ratios are shown in table one:
base material | Example one | Example two | EXAMPLE III |
Bauxite | 50 portions of | 58 portions of | 70 portions of |
Silicon micropowder | 10 portions of | 13 portions of | 15 portions of |
Corundum powder | 20 portions of | 28 portions of | 30 portions of |
The specific examples of the liquid material ratios are shown in the second table:
liquid material | Example one | Example two | EXAMPLE III |
Epoxy resin | 2 portions of | 3.5 parts of | 5 portions of |
Melamine | 3 portions of | 4 portions of | 5 portions of |
Boric anhydride | 3 portions of | 3.5 parts of | 5 portions of |
Water (W) | 15 portions of | 20 portions of | 25 portions of |
The cement-free spray coating is prepared by premixing epoxy resin in corundum powder instead of cement as a functional component, and the construction adopts a sintering method, wherein the construction surface is heated to 250 ℃ from room temperature, the epoxy resin generates a viscous liquid phase, and the corundum powder is solidified together.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention, without departing from the technical solution of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (3)
1. The cement-free spray coating is characterized by comprising the following steps:
(1) preparing a base material:
preparing materials and weighing according to the following parts by mass:
50-70 parts of bauxite;
10-15 parts of silicon micropowder;
20-30 parts of corundum powder;
1b, crushing bauxite, grinding the crushed bauxite into fine powder, and then preliminarily removing iron by an acid washing method to obtain the treated bauxite;
1c, crushing: adding corundum powder and silicon micropowder into bauxite, crushing and grinding the mixture, sieving the mixture, outputting the powder through a finished product conveyer belt, and packaging the powder to obtain a semi-finished product;
(2) preparing a liquid material:
preparing materials and weighing according to the following parts by mass:
5-12 parts of epoxy resin;
3-5 parts of a water reducing agent;
3-5 parts of boric anhydride;
15-25 parts of water;
and 2b, mixing the materials, and packaging in bags to obtain the additive material bag.
2. The cement-free spray paint according to claim 1, wherein the water reducing agent is melamine.
3. The construction method of the cement-free spray paint as claimed in claim 2, wherein the base material and the liquid material are mixed according to a mass ratio of 3-5:8-10 to obtain the spray paint, the spray paint is sprayed on the construction surface through the spraying equipment, the construction surface is heated and sintered at a sintering temperature of 250 ℃ to 350 ℃, the temperature is maintained for 2-3 hours, and then the mixture is naturally cooled to room temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911405025.9A CN110963811A (en) | 2019-12-31 | 2019-12-31 | Cement-free spray paint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911405025.9A CN110963811A (en) | 2019-12-31 | 2019-12-31 | Cement-free spray paint |
Publications (1)
Publication Number | Publication Date |
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CN110963811A true CN110963811A (en) | 2020-04-07 |
Family
ID=70037521
Family Applications (1)
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CN201911405025.9A Pending CN110963811A (en) | 2019-12-31 | 2019-12-31 | Cement-free spray paint |
Country Status (1)
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Application publication date: 20200407 |
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