CN112358269A - Anti-sticking agent for improving slag pot turnover rate and preparation method thereof - Google Patents
Anti-sticking agent for improving slag pot turnover rate and preparation method thereof Download PDFInfo
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- CN112358269A CN112358269A CN202011310003.7A CN202011310003A CN112358269A CN 112358269 A CN112358269 A CN 112358269A CN 202011310003 A CN202011310003 A CN 202011310003A CN 112358269 A CN112358269 A CN 112358269A
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
- C04B28/186—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
- C04B28/188—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step the Ca-silicates being present in the starting mixture
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an anti-sticking agent for improving the slag pot peeling rate and a preparation method thereof. The anti-sticking agent comprises the following components in parts by weight: 10-15 parts of lime, 40-50 parts of dolomite, 30-40 parts of waste magnesia carbon bricks, 1-3 parts of bentonite, 10-20 parts of talcum powder, 15-20 parts of quartz, 1-5 parts of a curing agent and 1-5 parts of a coagulant; the preparation method of the anti-sticking agent comprises the following steps: (1) uniformly mixing lime and dolomite according to a weight ratio of 1: 1-2, and pressing the mixture into balls to obtain an anti-sticking material A; (2) mixing the rest dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, curing agent and coagulant according to the formula, adding water and stirring uniformly to obtain the anti-sticking material B matched with the anti-sticking material A. The anti-sticking agent prepared by the invention can effectively prevent the slag ladle from sticking, prolong the service life of the slag ladle and reduce the production cost.
Description
Technical Field
The invention belongs to the technical field of anti-sticking agents, and particularly relates to an anti-sticking agent for improving the slag pot turnover rate and a preparation method thereof.
Background
When steel enterprises produce various metal products, various high-temperature furnace slag such as steel slag, desulphurization slag and the like are inevitably generated, the molten slag is usually poured into a slag pot and then transported to a slag yard to be turned out, the slag receiving quantity is large, the high-temperature test is frequently carried out, the replacement rate of the slag pot per year is high, and the great cost expenditure of the steel plant is achieved. Meanwhile, the phenomenon of tank sticking of the slag tank exists in the process of turning over and abandoning the slag tank. Therefore, the slag pot which cannot be turned over and abandoned on site is required to be poured into a specific area for secondary turning and abandoning, the number of the secondary turning and abandoning can reach more than 300 at most every month, and the transferring time and the cost are increased.
At present, domestic and foreign iron and steel enterprises mainly improve the turn-over rate of a slag ladle by spraying the slag ladle, the slag ladle is actually a middle transition metal container, and a layer of high-temperature resistant separating material is coated on the inner wall of the slag ladle to prevent various high-temperature slag from being adhered to the inner wall of the slag ladle, so that the separating material is required to have reliable slag resistance, anti-stripping performance and good construction performance.
Because the hot slag in the slag pot can be adhered to the slag pot after being cooled, the slag pot is difficult to turn over, the slag pot needs to be knocked to form a hanging clamp, the danger degree is high, and the slag pot is greatly damaged. Therefore, the slag pot which cannot be tipped over needs to be transferred to a specific area for treatment, the difficulty of the transfer is increased, the cost of retreatment is increased, such as smashing, retreatment cost and the like, and the secondary treatment pot accounts for about 20 percent of all the slag pots. Therefore, the reduction of the secondary treatment of the slag ladle is a problem which is urgently needed to be solved at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the anti-sticking agent for improving the turn-off rate of the slag ladle and the preparation method thereof, which can effectively prevent the adhesion between the steel slag in the slag ladle and the inner wall of the slag ladle.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows:
an anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
10-15 parts of lime, 40-50 parts of dolomite, 30-40 parts of waste magnesia carbon bricks, 1-3 parts of bentonite, 10-20 parts of talcum powder, 15-20 parts of quartz, 1-5 parts of curing agent and 1-5 parts of coagulant.
Further, the paint comprises the following components in parts by weight:
10 parts of lime, 40 parts of dolomite, 40 parts of waste magnesia carbon bricks, 2 parts of bentonite, 12 parts of talcum powder, 15 parts of quartz, 2 parts of curing agent and 2 parts of coagulant.
Further, the curing agent is calcium silicate.
Further, the coagulant is a calcium formate coagulant or a sodium aluminate coagulant.
Furthermore, the particle size of the waste magnesia carbon bricks is 0.1-5 mm.
Further, the dolomite is calcined at 1000-1500 ℃.
The preparation method of the anti-sticking agent comprises the following steps:
(1) uniformly mixing lime and dolomite according to a weight ratio of 1: 1-2, and pressing the mixture into balls to obtain an anti-sticking material A;
(2) and mixing the rest dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, curing agent and coagulant according to the formula, adding water, stirring and mixing at 1000-2000 r/min for 1-4 h to obtain the anti-sticking material B matched with the anti-sticking material A for use.
Further, the weight ratio of lime to dolomite is 1: 2.
Further, the stirring speed was 1200 r/min.
The application method of the anti-sticking agent comprises the following steps: spraying the anti-sticking material B on the inner wall of the slag pot for 2-3 times to form an anti-sticking coating with the thickness of 0.5-2 cm; and then adding the anti-sticking material A into the steel slag in the tank body, and mixing the anti-sticking material A with the steel slag.
The invention has the beneficial effects that:
1. the microspheres formed by mixing the lime and the dolomite in a ratio of 1:2 can effectively modify the steel slag, reduce the melting point of the steel slag and reduce the probability of slag adhesion of the steel slag. And then the slag is matched with an anti-sticking material B sprayed on the inner wall of the tank body, so that the probability of slag sticking of the steel slag can be maximally reduced.
2. The anti-sticking material B contains waste magnesia carbon bricks which contain graphite, the graphite has good slag corrosion resistance and slag permeability resistance, and the anti-sticking material B is added into the gunning mix to effectively prevent the further reaction of Fe2O3, SiO2 and Al2O3 in slag and CaO and MgO in the slag so as to prevent the further corrosion of the slag. Can effectively achieve the purpose of preventing slag adhesion.
3. The dolomite, the bentonite, the talcum powder and the quartz can form an isolation coating, and the balance phases of the coating are high-melting-point phases at high temperature, are not easily dissolved by the steel slag and can isolate the contact between the tank body and the steel slag; and then the slag-sticking prevention effect can be achieved to the maximum extent by matching with the waste magnesia carbon bricks.
4. The dolomite added in the formula is decomposed into a mixture of carbon dioxide, calcium oxide and magnesium oxide when heated to 700-900 ℃, and is easy to react with water. When the dolomite is continuously calcined, the magnesia becomes periclase, the calcium oxide is converted into crystalline a-CaO, the structure is compact, the water resistance is strong, and the refractoriness reaches 2300 ℃, so that the prepared coating has good temperature resistance.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Example 1
An anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
10 parts of lime, 40 parts of dolomite, 40 parts of waste magnesia carbon bricks with the grain diameter of 0.5mm, 2 parts of bentonite, 12 parts of talcum powder, 15 parts of quartz, 2 parts of dicalcium silicate and 2 parts of calcium formate.
The preparation method of the anti-sticking agent comprises the following steps:
(1) uniformly mixing lime and dolomite according to a weight ratio of 1:2, and then pressing the mixture into balls to obtain an anti-sticking material A;
(2) mixing the rest dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, dicalcium silicate and calcium formate according to the formula, adding water, stirring and mixing at 1000r/min for 1.5h to obtain the anti-sticking material B matched with the anti-sticking material A.
When in use: spraying the anti-sticking material B on the inner wall of the slag pot for 2-3 times to form an anti-sticking coating with the thickness of 0.5 cm; and then adding the anti-sticking material A into the steel slag in the tank body, and mixing the anti-sticking material A with the steel slag.
Example 2
An anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
15 parts of lime, 50 parts of dolomite, 40 parts of waste magnesia carbon bricks with the grain diameter of 0.1mm, 3 parts of bentonite, 20 parts of talcum powder, 20 parts of quartz, 5 parts of dicalcium silicate and 5 parts of sodium aluminate.
The preparation method of the anti-sticking agent comprises the following steps:
(1) uniformly mixing lime and dolomite according to a weight ratio of 1:1, and then pressing balls to obtain an anti-sticking material A;
(2) mixing the rest dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, dicalcium silicate and sodium aluminate according to the formula, adding water, stirring and mixing at 2000r/min for 1h to obtain the anti-sticking material B matched with the anti-sticking material A.
When in use: spraying the anti-sticking material B on the inner wall of the slag pot for 2-3 times to form an anti-sticking coating with the thickness of 0.5 cm; and then adding the anti-sticking material A into the steel slag in the tank body, and mixing the anti-sticking material A with the steel slag.
Example 3
An anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
12 parts of lime, 44 parts of dolomite, 36 parts of waste magnesia carbon bricks with the grain diameter of 1.2mm, 2 parts of bentonite, 14 parts of talcum powder, 16 parts of quartz, 4 parts of dicalcium silicate and 3 parts of sodium aluminate.
The preparation method of the anti-sticking agent comprises the following steps:
(1) uniformly mixing lime and dolomite according to a weight ratio of 1:2, and then pressing the mixture into balls to obtain an anti-sticking material A;
(2) mixing the rest dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, curing agent and coagulant according to the formula, adding water, stirring and mixing for 1h at 1000r/min to obtain the anti-sticking material B matched with the anti-sticking material A.
When in use: spraying the anti-sticking material B on the inner wall of the slag pot for 2-3 times to form an anti-sticking coating with the thickness of 1 cm; and then adding the anti-sticking material A into the steel slag in the tank body, and mixing the anti-sticking material A with the steel slag.
Comparative example 1
An anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
40 parts of dolomite, 40 parts of waste magnesia carbon bricks with the grain diameter of 0.5mm, 2 parts of bentonite, 12 parts of talcum powder, 15 parts of quartz, 2 parts of dicalcium silicate and 2 parts of calcium formate.
The preparation method of the anti-sticking agent comprises the following steps:
(1) mixing dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, dicalcium silicate and calcium formate according to the formula, adding water, stirring and mixing at 1000r/min for 1.5h to obtain the anti-sticking agent.
Comparative example 2
An anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
40 parts of dolomite, 2 parts of bentonite, 12 parts of talcum powder, 15 parts of quartz, 2 parts of dicalcium silicate and 2 parts of calcium formate.
The preparation method of the anti-sticking agent comprises the following steps:
(1) mixing the rest dolomite, bentonite, talcum powder, quartz, dicalcium silicate and calcium formate according to the formula, adding water, stirring and mixing at 1000r/min for 1.5h to obtain the anti-sticking material B matched with the anti-sticking material A.
Comparative example 3
An anti-sticking agent for improving the slag pot peeling rate comprises the following components in parts by weight:
50 parts of clay, 150 parts of quicklime, 700 parts of water, 2 parts of dicalcium silicate and 2 parts of calcium formate.
The preparation method comprises the following steps:
mixing clay, calx, water, dicalcium silicate and calcium formate for 10 min.
Examples of the experiments
1. Temperature resistance test
The coating prepared in the embodiment 1-3 is infusible at a high temperature of 1400-1500 ℃ and has strong high temperature resistance.
2. Spallation resistance test
When the temperature of the inner wall of the tank body is 200-300 ℃, the coating prepared in the embodiment 1-3 is sprayed on the inner wall of the tank body, and then the coating is sintered to be adhered to the surface of the tank wall, so that the coating can not fall off after long-distance railway bumping.
3. Anti-slag adhesion performance detection
The anti-sticking agents prepared in examples 1-3 and comparative examples 1-3 were used for testing 200 pot numbers respectively, and the slag sticking pot number of each group was detected, and the results are shown in table 1.
TABLE 1 Release agent Performance test
Can know by the data in table 1, the antiseized agent that this application preparation obtained just can reach the best antiseized effect when antiseized material A uses in antiseized material B cooperation, and simultaneously, the antiseized effect of the antiseized agent that this application preparation obtained is superior to comparative example 1 ~ 3 far away, can prevent effectively that the slag ladle from gluing, prolongs the life of slag ladle, reduction in production cost.
Claims (9)
1. An anti-sticking agent for improving the slag pot peeling rate is characterized by comprising the following components in parts by weight:
10-15 parts of lime, 40-50 parts of dolomite, 30-40 parts of waste magnesia carbon bricks, 1-3 parts of bentonite, 10-20 parts of talcum powder, 15-20 parts of quartz, 1-5 parts of curing agent and 1-5 parts of coagulant.
2. The anti-sticking agent for improving the slag pot peeling rate according to claim 1, which is characterized by comprising the following components in parts by weight:
10 parts of lime, 40 parts of dolomite, 40 parts of waste magnesia carbon bricks, 2 parts of bentonite, 12 parts of talcum powder, 15 parts of quartz, 2 parts of curing agent and 2 parts of coagulant.
3. The anti-sticking agent for improving the slag pot peeling rate as claimed in claim 1 or 2, wherein the curing agent is calcium silicate.
4. The anti-sticking agent for increasing the slag pot turn-off rate according to claim 1 or 2, wherein the setting accelerator is a calcium formate setting accelerator or a sodium aluminate setting accelerator.
5. The anti-sticking agent for improving the slag pot turnover rate according to claim 1 or 2, wherein the particle size of the waste magnesia carbon brick is 0.1-5 mm.
6. The anti-sticking agent for improving the slag pot peeling rate according to claim 1 or 2, wherein the dolomite is calcined at 1000-1500 ℃.
7. A process for producing the antiblocking agent according to any one of claims 1 to 6, characterized by comprising the steps of:
(1) uniformly mixing lime and dolomite according to a weight ratio of 1: 1-2, and pressing the mixture into balls to obtain an anti-sticking material A;
(2) and mixing the rest dolomite, waste magnesia carbon bricks, bentonite, talcum powder, quartz, curing agent and coagulant according to the formula, adding water, stirring and mixing at 1000-2000 r/min for 1-4 h to obtain the anti-sticking material B matched with the anti-sticking material A for use.
8. A method of production according to claim 7, wherein the weight ratio of lime to dolomite is 1: 2.
9. The method according to claim 7, wherein the stirring speed is 1200 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310003.7A CN112358269A (en) | 2020-11-20 | 2020-11-20 | Anti-sticking agent for improving slag pot turnover rate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011310003.7A CN112358269A (en) | 2020-11-20 | 2020-11-20 | Anti-sticking agent for improving slag pot turnover rate and preparation method thereof |
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| CN112358269A true CN112358269A (en) | 2021-02-12 |
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| CN202011310003.7A Pending CN112358269A (en) | 2020-11-20 | 2020-11-20 | Anti-sticking agent for improving slag pot turnover rate and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232381A (en) * | 2021-12-22 | 2022-03-25 | 东莞市伟邦新材料科技有限公司 | Anti-sticking agent for gum dipping process and preparation method thereof |
| CN116287497A (en) * | 2023-03-07 | 2023-06-23 | 成都西部物联集团有限公司 | Deslagging process and device for tank truck |
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| CN101284736A (en) * | 2008-05-20 | 2008-10-15 | 攀枝花顺腾集团冶金材料有限公司 | Antisticking coating mixture for steel-smelting and preparation method threreof |
| CN102503463A (en) * | 2011-10-24 | 2012-06-20 | 中冶宝钢技术服务有限公司 | Slag ladle protective agent using steel slag as main raw material, and preparation method and spray repair method thereof |
| CN110564917A (en) * | 2019-09-24 | 2019-12-13 | 山东钢铁股份有限公司 | Slag modifier and preparation method thereof |
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2020
- 2020-11-20 CN CN202011310003.7A patent/CN112358269A/en active Pending
Patent Citations (4)
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| CN1593816A (en) * | 2004-06-24 | 2005-03-16 | 武汉钢实星源工业总公司 | High temperature separating material for preventing cinder and steel from staining to cinder ladle |
| CN101284736A (en) * | 2008-05-20 | 2008-10-15 | 攀枝花顺腾集团冶金材料有限公司 | Antisticking coating mixture for steel-smelting and preparation method threreof |
| CN102503463A (en) * | 2011-10-24 | 2012-06-20 | 中冶宝钢技术服务有限公司 | Slag ladle protective agent using steel slag as main raw material, and preparation method and spray repair method thereof |
| CN110564917A (en) * | 2019-09-24 | 2019-12-13 | 山东钢铁股份有限公司 | Slag modifier and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 郑延力 等: "《非金属矿产开发应用指南》", 30 September 1989 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232381A (en) * | 2021-12-22 | 2022-03-25 | 东莞市伟邦新材料科技有限公司 | Anti-sticking agent for gum dipping process and preparation method thereof |
| CN116287497A (en) * | 2023-03-07 | 2023-06-23 | 成都西部物联集团有限公司 | Deslagging process and device for tank truck |
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