CN114479526A - Special slag adhering prevention spray coating for converter oxygen lance and preparation process thereof - Google Patents
Special slag adhering prevention spray coating for converter oxygen lance and preparation process thereof Download PDFInfo
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- CN114479526A CN114479526A CN202210075311.9A CN202210075311A CN114479526A CN 114479526 A CN114479526 A CN 114479526A CN 202210075311 A CN202210075311 A CN 202210075311A CN 114479526 A CN114479526 A CN 114479526A
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- 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
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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
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Abstract
The invention is suitable for the technical field of preparation of new metallurgical materials, and provides a preparation process of special slag adhering prevention spraying for a converter oxygen lance, which comprises the following steps: s1) batching: taking 10-35 parts of soil graphite, 30-45 parts of magnesia powder, 3-25 parts of boron nitride, 3-12 parts of sodium silicate, 1-20 parts of acetone, 5-13 parts of borax, 1-5 parts of a deflocculant, 1-3 parts of a defoaming agent and 1-3 parts of a plasticizer for later use; s2) homogenizing: putting the raw materials in S1 into a stirrer for stirring; s3) weighing: weighing and grouping the stirred mixture; s4) bagging: bagging the grouped mixture, naturally drying and reasonably maintaining the mixture, and then curing and molding the mixture; s5) test: performing quality inspection on the mixture after bagging and forming; s6) warehousing: warehousing and storing the mixture qualified in the inspection; the invention has excellent performance and can avoid the problems of slag adhesion, gun adhesion, difficult cleaning and influence on the production rhythm.
Description
Technical Field
The invention relates to the technical field of preparation of new metallurgical materials, in particular to a special slag adhering prevention spray coating for a converter oxygen lance and a preparation process thereof.
Background
In the future, the steel-making method which is most widely applied in China is top-blown oxygen converter steel-making. The oxygen lance is easy to slag and stick steel in the process of inserting into the converter for oxygen blowing. When the slag bonding and steel sticking of the oxygen lance are serious, the mechanical load of oxygen lance lifting equipment is increased, the oxygen lance can not be inserted into or pulled out of a nitrogen seal, the normal production is influenced, and potential safety hazards are left.
Aiming at the problems of slag bonding and steel sticking of the oxygen lance, slag scrapers are adopted by some steel mills in the steel mills. If the bonding strength of the slag and the oxygen lance is high, the slag scraper is difficult to scrape the slag and is often required to repeat for many times, and particularly when the oxygen lance is seriously bonded with slag and bonded with steel, the slag scraper cannot scrape the slag, so that the service life of the oxygen lance is shortened, and even a malignant equipment accident that a steel rope of the oxygen lance is broken is caused, thereby endangering equipment and personal safety.
In the smelting process of the converter, the oxygen lance is strongly washed by the steel slag, the oxidizability of the slag is strong, and sometimes metallicity splashing can occur, so that the oxygen lance can stick slag and steel, and the working environment is very bad. Therefore, aiming at the current situation, the special anti-slagging spray coating for the converter oxygen lance and the preparation process thereof are urgently needed to overcome the defects of other similar anti-slagging agents in the current practical application.
Disclosure of Invention
The embodiment of the invention aims to provide a special slag adhering prevention spray coating for a converter oxygen lance and a preparation process thereof, and aims to solve the problems in the background technology.
The embodiment of the invention is realized in such a way that the special slag-adhering-preventing spray coating for the converter oxygen lance comprises the following components in parts by weight: 10-35 parts of soil graphite, 30-45 parts of magnesia powder, 3-25 parts of boron nitride, 3-12 parts of sodium silicate, 1-20 parts of acetone, 5-13 parts of borax, 1-5 parts of a deflocculant, 1-3 parts of a defoaming agent and 1-3 parts of a plasticizer.
As a further scheme of the invention: the raw materials comprise the following components in parts by weight: 12 parts of soil graphite, 31 parts of magnesia powder, 8 parts of boron nitride, 6 parts of sodium silicate, 11 parts of acetone, 12 parts of borax, 2 parts of a deflocculant, 2 parts of a defoaming agent and 3 parts of a plasticizer.
As a further scheme of the invention: the raw materials comprise the following components in parts by weight: 22 parts of soil graphite, 41 parts of magnesia powder, 16 parts of boron nitride, 11 parts of sodium silicate, 2 parts of acetone, 6 parts of borax, 5 parts of a deflocculant, 1 part of a defoaming agent and 2 parts of a plasticizer.
As a further scheme of the invention: the deflocculant is one of sodium carbonate, sodium humate, water glass and sodium metaphosphate.
A preparation process of the special slag adhering prevention spray coating for the converter oxygen lance is applied to the special slag adhering prevention spray coating for the converter oxygen lance, and comprises the following steps:
s1) batching: taking soil graphite, magnesia powder, boron nitride, sodium silicate, acetone, borax, a deflocculant, a defoaming agent and a plasticizer according to the proportion for later use;
s2) homogenizing: putting the raw materials in S1 into a stirrer for stirring;
s3) weighing: weighing and grouping the stirred mixture;
s4) bagging: bagging the grouped mixture, naturally drying and reasonably maintaining the mixture, and then curing and molding the mixture;
s5) test: performing quality inspection on the mixture after bagging and forming;
s6) warehousing: and warehousing and storing the qualified mixture.
As a further scheme of the invention: the soil graphite is powder which is sieved by a 100-mesh sieve.
As a further scheme of the invention: the rotating speed of the stirrer is 1000rpm, and the temperature is 22-24 ℃ at normal temperature.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the invention has excellent performance, can avoid the problems of low slag cleaning efficiency, unclean cleaning and difficult operation caused by large bonding strength of slag adhesion and severe operating environment, provides convenience for related personnel and is worth popularizing;
the invention has simple preparation process and low cost.
Drawings
FIG. 1 is a flow chart of a process for preparing a slag-sticking prevention spray coating special for a converter oxygen lance in accordance with an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Example 1
The special slag-hanging-preventing spray coating for the converter oxygen lance is prepared from the following raw materials in parts by weight: 12 parts of soil graphite, 31 parts of magnesia powder, 8 parts of boron nitride, 6 parts of sodium silicate, 11 parts of acetone, 12 parts of borax, 2 parts of a deflocculant, 2 parts of a defoaming agent and 3 parts of a plasticizer.
The preparation process of the special anti-slagging spray coating for the converter oxygen lance comprises the following steps:
s1) batching: taking 12 parts of soil graphite, 31 parts of magnesia powder, 8 parts of boron nitride, 6 parts of sodium silicate, 11 parts of acetone, 12 parts of borax, 2 parts of a deflocculant, 2 parts of a defoaming agent and 3 parts of a plasticizer for later use;
s2) homogenizing: putting the raw materials in S1 into a stirrer for stirring; wherein the rotation speed of the stirrer is 1000rpm, and the temperature is 22-24 ℃ at normal temperature.
S3) weighing: weighing and grouping the stirred mixture; wherein, the mixture with the preset mass can be weighed according to the requirement, and the weighed mixture is placed in groups;
s4) bagging: bagging the grouped mixture, naturally drying and reasonably maintaining the mixture, and then curing and molding the mixture;
s5) test: performing quality inspection on the mixture after bagging and forming;
s6) warehousing: and warehousing and storing the qualified mixture to obtain the required coating.
Wherein the functions of various main raw materials are as follows: the main functions of the soil graphite are high temperature resistance, soft quality and convenient smearing; the boron nitride has the main functions of enhancing chemical resistance, being not corroded by inorganic acid and water and resisting heat, and the other raw materials are additives which have the functions of enhancing corrosion resistance, spalling resistance and slag resistance at high temperature.
Example 2
The special slag-sticking-preventing spray coating for the converter oxygen lance is prepared from the following raw materials in parts by weight: 22 parts of soil graphite, 41 parts of magnesia powder, 16 parts of boron nitride, 11 parts of sodium silicate, 2 parts of acetone, 6 parts of borax, 5 parts of a deflocculant, 1 part of a defoaming agent and 2 parts of a plasticizer.
The preparation process of the special anti-slagging spray coating for the converter oxygen lance comprises the following steps:
s1) batching: 22 parts of soil graphite, 41 parts of magnesia powder, 16 parts of boron nitride, 11 parts of sodium silicate, 2 parts of acetone, 6 parts of borax, 5 parts of a deflocculant, 1 part of a defoaming agent and 2 parts of a plasticizer for later use;
s2) homogenizing: putting the raw materials in S1 into a stirrer for stirring; wherein the rotation speed of the stirrer is 1500rpm, and the temperature is 22-24 ℃ at normal temperature.
S3) weighing: weighing and grouping the stirred mixture; wherein, the mixture with the preset mass can be weighed according to the requirement, and the weighed mixture is placed in groups;
s4) bagging: bagging the grouped mixture, naturally drying and reasonably maintaining the mixture, and then curing and molding the mixture;
s5) test: performing quality inspection on the mixture after bagging and forming;
s6) warehousing: and warehousing and storing the qualified mixture to obtain the required coating.
Wherein the functions of various main raw materials are as follows: the main functions of the soil graphite are high temperature resistance, soft quality and convenient smearing; the boron nitride has the main functions of enhancing chemical resistance, being not corroded by inorganic acid and water and resisting heat, and the other raw materials are additives which have the functions of enhancing corrosion resistance, spalling resistance and slag resistance at high temperature.
Example 3
The special slag-sticking-preventing spray coating for the converter oxygen lance is prepared from the following raw materials in parts by weight: 15 parts of soil graphite, 27 parts of magnesia powder, 11 parts of boron nitride, 3 parts of sodium silicate, 2 parts of acetone, 12 parts of borax, 4 parts of a deflocculant, 3 parts of a defoaming agent and 3 parts of a plasticizer.
The preparation process of the special anti-slagging spray coating for the converter oxygen lance comprises the following steps:
s1) batching: 15 parts of soil graphite, 27 parts of magnesia powder, 11 parts of boron nitride, 3 parts of sodium silicate, 2 parts of acetone, 12 parts of borax, 4 parts of a deflocculant, 3 parts of a defoaming agent and 3 parts of a plasticizer for later use;
s2) homogenizing: putting the raw materials in S1 into a stirrer for stirring; wherein the rotation speed of the stirrer is 1000rpm, and the temperature is 30-35 ℃.
S3) weighing: weighing and grouping the stirred mixture; wherein, the mixture with the preset mass can be weighed according to the requirement, and the weighed mixture is placed in groups;
s4) bagging: bagging the grouped mixture, naturally drying and reasonably maintaining the mixture, and then curing and molding the mixture;
s5) testing: performing quality inspection on the mixture after bagging and forming;
s6) warehousing: and warehousing and storing the qualified mixture to obtain the required coating.
Wherein the functions of various main raw materials are as follows: the main functions of the graphite are high temperature resistance, soft texture and convenient smearing; the boron nitride has the main functions of enhancing chemical resistance, being not corroded by inorganic acid and water and resisting heat, and the other raw materials are additives which have the functions of enhancing corrosion resistance, spalling resistance and slag resistance at high temperature.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The special slag-adhering-preventing spray coating for the converter oxygen lance is characterized by comprising the following components in parts by weight: 10-35 parts of soil graphite, 30-45 parts of magnesia powder, 3-25 parts of boron nitride, 3-12 parts of sodium silicate, 1-20 parts of acetone, 5-13 parts of borax, 1-5 parts of a deflocculant, 1-3 parts of a defoaming agent and 1-3 parts of a plasticizer.
2. The anti-slagging spray coating special for the converter oxygen lance as claimed in claim 1, which is characterized by comprising the following components in parts by weight: 12 parts of soil graphite, 31 parts of magnesia powder, 8 parts of boron nitride, 6 parts of sodium silicate, 11 parts of acetone, 12 parts of borax, 2 parts of a deflocculant, 2 parts of a defoaming agent and 3 parts of a plasticizer.
3. The anti-slagging spray coating special for the converter oxygen lance as claimed in claim 1, which is characterized by comprising the following components in parts by weight: 22 parts of soil graphite, 41 parts of magnesia powder, 16 parts of boron nitride, 11 parts of sodium silicate, 2 parts of acetone, 6 parts of borax, 5 parts of a deflocculant, 1 part of a defoaming agent and 2 parts of a plasticizer.
4. The anti-slagging spray coating special for the oxygen lance of the converter according to claim 1, which is characterized in that the deflocculant adopts one of sodium carbonate, sodium humate, water glass and sodium metaphosphate.
5. The preparation process of the special anti-slag-sticking spray coating for the converter oxygen lance is characterized by being applied to the special anti-slag-sticking spray coating for the converter oxygen lance as claimed in any one of claims 1 to 4, and comprises the following steps:
s1) batching: taking soil graphite, magnesia powder, boron nitride, sodium silicate, acetone, borax, a deflocculant, a defoaming agent and a plasticizer according to the proportion for later use;
s2) homogenizing: putting the raw materials in S1 into a stirrer for stirring;
s3) weighing: weighing and grouping the stirred mixture;
s4) bagging: bagging the grouped mixture, naturally drying and reasonably maintaining the mixture, and then curing and molding the mixture;
s5) test: performing quality inspection on the mixture after bagging and forming;
s6) warehousing: and warehousing and storing the qualified mixture.
6. The preparation process of the anti-slagging spray coating special for the converter oxygen lance as claimed in claim 5, wherein the soil graphite is powder which is sieved by a 100-mesh sieve.
7. The preparation process of the anti-slagging spray coating special for the oxygen lance of the converter as claimed in claim 5, wherein the rotating speed of the stirrer is 1000rpm, and the temperature is 22-24 ℃ at normal temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210075311.9A CN114479526A (en) | 2022-01-22 | 2022-01-22 | Special slag adhering prevention spray coating for converter oxygen lance and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210075311.9A CN114479526A (en) | 2022-01-22 | 2022-01-22 | Special slag adhering prevention spray coating for converter oxygen lance and preparation process thereof |
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| CN114479526A true CN114479526A (en) | 2022-05-13 |
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| CN202210075311.9A Pending CN114479526A (en) | 2022-01-22 | 2022-01-22 | Special slag adhering prevention spray coating for converter oxygen lance and preparation process thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003697A (en) * | 2007-01-19 | 2007-07-25 | 丹东宽甸惠镁耐火材料有限公司 | Insulator for steel slag in high temperature |
| CN101654719A (en) * | 2008-08-22 | 2010-02-24 | 周立志 | Steel slag-removing oxygen lance spray coating |
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2022
- 2022-01-22 CN CN202210075311.9A patent/CN114479526A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003697A (en) * | 2007-01-19 | 2007-07-25 | 丹东宽甸惠镁耐火材料有限公司 | Insulator for steel slag in high temperature |
| CN101654719A (en) * | 2008-08-22 | 2010-02-24 | 周立志 | Steel slag-removing oxygen lance spray coating |
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