CN114507076A - Vertical kiln panel castable and use method thereof - Google Patents
Vertical kiln panel castable and use method thereof Download PDFInfo
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- CN114507076A CN114507076A CN202011274570.1A CN202011274570A CN114507076A CN 114507076 A CN114507076 A CN 114507076A CN 202011274570 A CN202011274570 A CN 202011274570A CN 114507076 A CN114507076 A CN 114507076A
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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
- 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
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- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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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
- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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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
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
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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
- 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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/442—Carbonates
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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Abstract
The invention relates to a vertical kiln panel castable which is prepared from the following raw materials in percentage by mass:
Description
Technical Field
The invention relates to a castable, in particular to a castable for a vertical kiln panel, and belongs to the technical field of metallurgical industrial kilns.
Background
The active lime shaft kiln is divided into a coke shaft kiln, a sleeve kiln, a Frakas and the like, and the annular sleeve kiln is a kiln type which is generally used for producing active lime at home and abroad at present, and has the advantages of environmental protection, safety, energy conservation, good product quality, high equipment operation rate and the like. After overhaul of the plum steel 3# kiln, due to the fact that high-temperature strength of clay insulating bricks NF2 bricks is not enough, shrinkage and sintering phenomena occur in a high-temperature state of a combustion chamber, damage is fast, and high-temperature air flow is conducted to a burner panel rapidly, so that the burner panel is red and damaged. The panel begins to change color after 20 months, the temperature rises, the panel becomes black after 24 months, the temperature gradually rises to more than 400 ℃, and the situation of burning-through of the steel plate occurs in severe places. The existing furnace kiln has long service life and tight production task, and can not be stopped. After the refractory material of the burner nozzle panel is damaged, outside air directly enters the combustion chamber, the combustion effect is poor, the heat consumption of gas combustion is increased, the process requirement of normal production cannot be met, and the lime yield and quality are greatly influenced. The common treatment method is kiln shutdown maintenance treatment, and burner bricks and burner panel refractory bricks are replaced, but the kiln shutdown time is at least one week, the production time of the lime kiln is wasted, the temporary solution is simply replaced, the permanent solution is not treated, and the service life of later-stage refractory materials is not long. The problems of the lime kilns at home and abroad are mostly solved. So, in order to reduce the influence of burner panel refractory material damage to lime production and quality to minimum, need a neotype shaft kiln panel pouring material, can repair the burner panel on line fast, reduce because the burner panel damages the influence to production, improve the output of lime, reduction in production cost. A preparation and use method of a vertical kiln panel castable mainly solves the problems of fast online pouring of the vertical kiln nozzle panel castable, prolongs the service life of the panel and improves the yield of a lime kiln; the main raw materials of the casting material of the invention, namely, the steel slag powder, the limestone sieve powder, the kiln dust removal powder and the like, are wastes generated in steel mill production, and cause pollution to the environment, so the casting material has the advantages of environmental protection, production cost reduction and the like.
And (4) searching for new things and comparing:
the invention discloses a wear-resistant castable (CN200810021194.8) for a lime kiln and an anti-skinning wear-resistant castable (CN201710410657.9) for the lime kiln. A wear-resistant castable (CN200810021194.8) for a lime kiln mainly solves the technical problem that the existing castable falls off in the using process and is mainly used for working linings on the outer sides of an upper sleeve and a lower sleeve in a sleeve lime kiln. The utility model provides a lime kiln is with anti skinning wear resistant castable (CN201710410657.9) discloses a lime kiln is with anti skinning wear resistant castable, keeps the wholeness ability of castable, not only strengthens erosion resistance and scouring resistance, and the important can effectively prevent the skinning, overcomes and stops up, guarantees that the system ventilation of kiln is smooth and easy, and the problem that this scheme was solved is different.
Disclosure of Invention
The invention provides a vertical kiln panel castable aiming at the problems in the prior art, and the technical scheme mainly solves the problems of quick online pouring of the vertical kiln nozzle panel castable, prolongs the service life of the panel, improves the yield of a lime kiln and reduces the production cost.
In order to achieve the purpose, the technical scheme of the invention is as follows, the castable for the vertical kiln face plate is prepared from the following raw materials in percentage by mass:
as an improvement of the invention, the steel slag particles are regular solid waste materials with certain shapes after steel slag of a steel mill is treated; the floating bead is a fly ash hollow sphere which can float on the water surface, is offwhite, has a thin and hollow wall, a volume weight of 0.4-0.5g/cm3, small thermal conductivity and granular shape, and has a particle size of about 0.1 mm.
As an improvement of the invention, the limestone sieve powder is limestone sieve powder generated by sieving limestone raw materials before feeding into a kiln, CaCO3The content is 85-90%, and limestone powder with particle size of 0.05-0.1mm is selected.
As an improvement of the invention, the kiln dust removal powder is dust removal powder ash (waste material influencing the environment) generated by hot airflow circulation in a kiln caused by a fan in the production process of a sleeve kiln, the main contents of the dust removal powder ash are CaO and CaCO3, the CaO content is 40-50%, the CaCO3 content is 35-45%, and the particle size is 0.05-0.1 mm.
As an improvement of the invention, the castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: the height of the regular triangular cone body is 4-5mm, the side length of the bottom is 2-3mm, and the granularity of the steel slag powder is required to be as follows: the mass percentage of the particle size less than or equal to 85um is more than or equal to 90 percent.
As an improvement of the invention, the castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: spherical shape with the diameter of 2-3mm,
the granularity requirement of the steel slag powder is as follows: the mass percentage of the granularity less than or equal to 80um is more than or equal to 90 percent.
A preparation and use method of a vertical kiln panel castable comprises the following steps:
step 1: preparing raw materials, namely steel slag particles, floating beads, limestone sieve powder, kiln dust removal powder, steel slag powder and perlite according to a ratio, and carrying out pre-drying treatment to remove water in the steel slag particles;
step 2: adding the mixture prepared in the step 1 into a dry mixer according to the mass percentage, and mixing and stirring to obtain a mixture;
and step 3: and (3) bagging the mixture obtained in the step (2) by using 25kg of bags (the inner layer is a waterproof plastic film), and sealing the bags.
The use method of the castable comprises the following steps:
tap water or waste water subjected to precipitation treatment in a steel mill is adopted, and the castable and the water are fully stirred according to the mass ratio of 0.07-0.1kg of water to 1kg of castable; in winter, water in a normal temperature state is adopted, and a heat preservation device is not needed; the stirred castable is used up within 30 minutes.
Compared with the prior art, the method has the advantages that the manufacturing method is simple, the use is convenient, and the service life of the panel of the sleeve kiln is prolonged by the method; the concrete effects are as follows:
1) the raw materials adopted by the invention are mostly wastes generated in steel-making production, and the pollution to the environment is reduced: a large amount of steel slag, steel slag powder, limestone sieve powder and kiln dust removal powder are used in the self-produced castable, which belongs to waste materials generated in steelmaking production and pollutes the environment.
2) Greatly reduces the use cost of the casting material: the price of the castable purchased from a company is about 4500 yuan/ton, a large amount of steel slag, steel slag powder, limestone sieve powder and kiln dust removal powder are used in the castable produced by the company and are very cheap, the price of the steel slag and the steel slag powder in the plum steel is about 5 yuan/ton, the price of the limestone sieve powder and the kiln dust removal powder in the plum steel is about 8 yuan/ton, and the comprehensive price of the castable produced by the company is about 420 yuan/ton.
3) When the castable is used in winter, hot water and heat preservation equipment are not needed any more, and because CaO added with water reacts to generate a large amount of heat, the castable can be directly constructed in low-temperature weather without heating.
4) The use quality is greatly improved, and in the experimental stage,
after the novel vertical kiln panel castable is used, the service life of the burner nozzle panel refractory is prolonged: the average service life of the burner is improved from 17 months to 61 months, which is shown in table 1;
table 1 statistical table of refractory life of burner face plate before and after using novel castable
Secondly, after the novel vertical kiln panel castable is used, the panel heat preservation effect is greatly improved, the temperature of the burner panel is reduced from 180 ℃ to 110 ℃, and the temperature is shown in table 2;
TABLE 2 statistical table for comparing temperatures of front and rear burner face plates by using novel castable
The key physical and chemical indexes of the self-produced castable, such as compressive strength, permanent line change rate, heat conductivity and the like, are greatly improved.
The recycling of solid waste is increased in the self-produced castable, the use of cement in outsourcing castable is reduced, the pollution to the environment is reduced, the service life of the panel is greatly prolonged, the labor intensity is reduced, and the self-produced castable has good social benefits.
Drawings
FIG. 1 shows that the shape of the steel slag particles is a regular triangle cone, wherein H is the height of the cone, and S is the side length of the bottom of the cone;
FIG. 2 shows that the shape of the steel slag particles is a regular quadrangular pyramid, wherein H is the height of the pyramid, and S is the side length of the bottom of the pyramid;
FIG. 3 shows the shape of the steel slag particles as a regular hexagonal pyramid, wherein H is the height of the pyramid, and S is the side length of the bottom of the pyramid;
FIG. 4 the shape of the steel slag particles is spherical, wherein D is the diameter of the sphere;
FIG. 5 is a graph of sample temperature rise;
FIG. 6 burner face plate temperature ramp.
The specific implementation mode is as follows:
for the purpose of enhancing an understanding of the present invention, the present embodiment will be described in detail below with reference to the accompanying drawings.
Example 1:
a vertical kiln panel castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: the height of the regular triangle centrum is 4-5mm, and the bottom side length is 2-3mm, as shown in figure 1;
the granularity requirement of the steel slag powder is as follows: the mass percentage of the particle size less than or equal to 85um is more than or equal to 90 percent.
Example 2:
a vertical kiln panel castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: the height of the regular quadrangle vertebral body is 2-3mm, and the side length of the bottom is 2-3mm, as shown in figure 2;
the granularity requirement of the steel slag powder is as follows: the mass percentage of the particle size less than or equal to 70um is more than or equal to 85 percent.
Example 3:
a vertical kiln panel castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: a right hexagonal pyramid, the height of the pyramid is 3-4mm, the bottom side length is 2-3mm, see figure 3;
the granularity requirement of the steel slag powder is as follows: the mass percentage of the granularity less than or equal to 75um is more than or equal to 90 percent.
Example 4:
a vertical kiln panel castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: spherical with a diameter of 2-3mm, as shown in figure 4.
The granularity requirement of the steel slag powder is as follows: the mass percentage of the granularity less than or equal to 80um is more than or equal to 90 percent.
The preparation method of the castable for the shaft kiln panels in the embodiments 1 to 4 comprises the following steps:
the raw materials are prepared according to the weight percentage requirements in the embodiment, and are added into a V-shaped stirrer to uniformly mix steel slag particles, floating beads, limestone sieve powder, kiln dust removal powder, steel slag powder and closed-cell perlite to obtain a mixture;
and bagging the mixture according to a standard of 25 kg/bag (the inner layer is a waterproof plastic film), and hermetically packaging to obtain the vertical kiln panel castable.
The physical and chemical properties of the prepared shaft kiln panel castable are detected as follows:
taking 25kg of prepared vertical kiln panel castable in a packaging bag, then adding 2.25kg of tap water or steel mill precipitated wastewater, and fully stirring and uniformly mixing to obtain mixed slurry; and respectively pouring the obtained mixed slurry into small experimental molds at one time, paying attention to the fact that the slurry in the molds needs to be uniformly vibrated after the slurry is charged, troweling the slurry by using a scraper, and scraping the redundant slurry at the mold opening completely. Maintaining for 24 hours, and then removing the mold; after the mold is removed, the sample is put into an oven to be heated according to the following heating curve chart (see figure 5), the temperature is kept at 1100 ℃ for 3 hours, then the compressive strength and the heating permanent line change rate of the castable at 1100 ℃ are detected, and particularly, referring to figure 5,
the performance tests (according to the current industry standard) were carried out on the shaft kiln face plate castable prepared in examples 1-4, and the test results are shown in table 3.
TABLE 3 castable Performance testing and comparing Table
The detection result shows that: the castable for the vertical kiln panel prepared by the invention has lower thermal conductivity, the permanent line change rate and the compressive strength index are improved, and the castable is preferably used in the four embodiments according to the embodiment 2 and the embodiment 3. And wastes such as limestone screen powder, kiln dust removal, steel slag and the like are recycled, so that the difficult problem of utilizing a large amount of wastes is solved, and the novel vertical kiln panel castable is required to be widely popularized and used.
The application example is as follows: experimental stage
When 6 burner nozzle panels of a combustion chamber under a steel mill and a 2# kiln are damaged and repaired, the castable for the vertical kiln panels prepared in the embodiment 2 is selected, and the proportion of the castable to common tap water is 1: adding the mixture into a stirrer according to the mass ratio of 0.08, and fully stirring; the repair time of the refractory of each panel is 20-30 minutes. In order to ensure that the stirred castable is used up within 30 minutes, the amount of the castable to be prepared each time is determined according to the damage degree of each burner, the prepared castable can only be used for 1 burner panel each time, and the waste caused by the influence on the use effect due to the fact that the amount prepared at one time is too large and cannot be used up within 30 minutes is avoided.
The amount of the vertical kiln face plate castable consumed by repairing the burner face plates of the lower combustion chambers 1-6 is 1.8 tons, 2.1 tons, 2.2 tons, 1.75 tons, 1.98 tons and 2.15 tons respectively, the total amount of the vertical kiln face plate castable consumed is 11.98 tons, and the temperature is raised according to a burner face plate temperature rise curve chart (see fig. 6) after the repairing is finished. And (3) formally reaching the yield of the 2# kiln after the temperature rise is finished at noon in 12 months and 20 days, wherein the yield is 470 tons/day. Referring to fig. 6, the temperature rise curve of the burner panel shows that the service life of the improved burner panel is obviously prolonged from 17 months to 61 months from the viewpoint of use effect, as shown in table 4; the heat preservation effect is greatly improved, the temperature of the panel is reduced from 180 ℃ to 110 ℃, see table 5, the gas consumption is reduced, and the energy-saving effect is very obvious.
Table 4 statistical table of nozzle panel refractory life before and after changing castable
TABLE 5 statistical table for comparison of temperature of burner face plates before and after changing castable
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent modifications and substitutions based on the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.
Claims (8)
1. The castable for the vertical kiln face plate is characterized by being prepared from the following raw materials in percentage by mass:
2. the shaft kiln panel castable according to claim 1, wherein the steel slag particles are selected from regular solid waste materials having a certain shape after being processed by steel factory steel slag; the floating bead is a fly ash hollow sphere which can float on the water surface, is offwhite, has a thin and hollow wall, a volume weight of 0.4-0.5g/cm3, small thermal conductivity and granular shape, and has a particle size of about 0.1 mm.
3. The shaft kiln panel castable according to claim 2, wherein said limestone screen powder is limestone screen powder, CaCO, produced by screening limestone before feeding into the kiln3The content is 85-90%, and limestone powder with particle size of 0.05-0.1mm is selected.
4. The shaft kiln panel castable according to claim 3, wherein said kiln dust removal powder is dust removal powder ash (waste material affecting the environment) generated by hot air circulation in a kiln caused by a fan in the production process of a sleeve kiln, and mainly contains CaO and CaCO3, the CaO content is 40-50%, the CaCO3 content is 35-45%, and the grain size is 0.05-0.1 mm.
5. The shaft kiln panel castable according to claim 4, characterized in that the castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: the height of the regular triangular cone body is 4-5mm, the side length of the bottom is 2-3mm, and the granularity of the steel slag powder is required to be as follows: the mass percentage of the particle size less than or equal to 85um is more than or equal to 90 percent.
6. The shaft kiln panel castable according to claim 4, characterized in that the castable is prepared from the following raw materials in percentage by weight:
the granularity requirement of the steel slag particles is as follows: spherical shape with the diameter of 2-3mm,
the granularity requirement of the steel slag powder is as follows: the mass percentage of the granularity less than or equal to 80um is more than or equal to 90 percent.
7. A method for preparing and using the castable for the vertical kiln face plate of any one of claims 1-4, wherein the method comprises the following steps:
step 1: preparing raw materials, namely steel slag particles, floating beads, limestone sieve powder, kiln dust removal powder, steel slag powder and perlite according to a ratio, and carrying out pre-drying treatment to remove water in the steel slag particles;
step 2: adding the mixture prepared in the step 1 into a dry mixer according to the mass percentage, and mixing and stirring to obtain a mixture;
and step 3: and (3) bagging the mixture obtained in the step (2) by using 25kg of bags (the inner layer is a waterproof plastic film), and sealing the bags.
8. The preparation and use method of the shaft kiln panel castable according to claim 7 is characterized in that the use method of the castable comprises the following steps: tap water or waste water subjected to precipitation treatment in a steel mill is adopted, and the castable and the water are fully stirred according to the mass ratio of 0.07-0.1kg of water to 1kg of castable; in winter, water in a normal temperature state is adopted, and a heat preservation device is not needed; the stirred castable is used up within 30 minutes.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421880A (en) * | 1994-01-14 | 1995-06-06 | Texas Industries, Inc. | Method and apparatus for using steel slag in cement clinker production |
| WO2008138170A1 (en) * | 2007-05-14 | 2008-11-20 | Cao, Bugao | Dry powder mortar made from steel slag and a method for producing it |
| CN102698575A (en) * | 2012-01-17 | 2012-10-03 | 济钢集团国际工程技术有限公司 | Sintering flue gas desulfurizing agent and preparation method thereof |
| CN103396135A (en) * | 2013-07-30 | 2013-11-20 | 莱芜钢铁集团泰东实业有限公司 | Castable for grid wall of casting residue basin, and preparation method and application method of castable |
| CN108249934A (en) * | 2018-01-29 | 2018-07-06 | 郑州市裕丰耐火材料有限公司 | A kind of lightening casting material |
| WO2019002692A1 (en) * | 2017-06-28 | 2019-01-03 | Upm-Kymmene Corporation | A method and an apparatus for processing an industrial side stream material |
| CN110092621A (en) * | 2018-01-30 | 2019-08-06 | 武汉科技大学 | A kind of steel slag permeable foam concrete and preparation method thereof |
-
2020
- 2020-11-15 CN CN202011274570.1A patent/CN114507076B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421880A (en) * | 1994-01-14 | 1995-06-06 | Texas Industries, Inc. | Method and apparatus for using steel slag in cement clinker production |
| US5421880C1 (en) * | 1994-01-14 | 2001-06-05 | Texas Industries Inc | Method and apparatus for using steel slag in cement clinker production |
| WO2008138170A1 (en) * | 2007-05-14 | 2008-11-20 | Cao, Bugao | Dry powder mortar made from steel slag and a method for producing it |
| CN102698575A (en) * | 2012-01-17 | 2012-10-03 | 济钢集团国际工程技术有限公司 | Sintering flue gas desulfurizing agent and preparation method thereof |
| CN103396135A (en) * | 2013-07-30 | 2013-11-20 | 莱芜钢铁集团泰东实业有限公司 | Castable for grid wall of casting residue basin, and preparation method and application method of castable |
| WO2019002692A1 (en) * | 2017-06-28 | 2019-01-03 | Upm-Kymmene Corporation | A method and an apparatus for processing an industrial side stream material |
| CN108249934A (en) * | 2018-01-29 | 2018-07-06 | 郑州市裕丰耐火材料有限公司 | A kind of lightening casting material |
| CN110092621A (en) * | 2018-01-30 | 2019-08-06 | 武汉科技大学 | A kind of steel slag permeable foam concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周旺枝等: "武钢活性石灰回转窑用耐磨浇注料技术标准研究", 《武钢技术》 * |
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