CN117105681A - Preparation method of silicon tripolyphosphate combined microporous sol grouting material - Google Patents
Preparation method of silicon tripolyphosphate combined microporous sol grouting material Download PDFInfo
- Publication number
- CN117105681A CN117105681A CN202311177891.3A CN202311177891A CN117105681A CN 117105681 A CN117105681 A CN 117105681A CN 202311177891 A CN202311177891 A CN 202311177891A CN 117105681 A CN117105681 A CN 117105681A
- Authority
- CN
- China
- Prior art keywords
- grouting material
- tripolyphosphate
- silica
- sol
- powder
- 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
- 239000000463 material Substances 0.000 title claims abstract description 81
- 235000019832 sodium triphosphate Nutrition 0.000 title claims abstract description 46
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 title claims abstract description 46
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 33
- 239000010703 silicon Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000000843 powder Substances 0.000 claims abstract description 41
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 10
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 32
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011230 binding agent Substances 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 4
- 230000000704 physical effect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000011819 refractory material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007767 bonding agent Substances 0.000 description 4
- 230000005465 channeling Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- XLUBVTJUEUUZMR-UHFFFAOYSA-B silicon(4+);tetraphosphate Chemical compound [Si+4].[Si+4].[Si+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XLUBVTJUEUUZMR-UHFFFAOYSA-B 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- 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
-
- 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
- C04B2235/34—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
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
-
- 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
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
-
- 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
-
- 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
-
- 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
-
- 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
- C04B2235/9615—Linear firing shrinkage
-
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of refractory materials, and discloses a preparation method of a silica tripolyphosphate combined microporous sol grouting material, which comprises the following steps: a first or a second method, the first method comprising: and 1, adding a proper amount of the silicon tripolyphosphate powder and the grouting material dry powder into a stirrer, directly adding the silicon sol, and uniformly mixing the silicon tripolyphosphate powder and the grouting material dry powder by the stirrer to obtain the silicon tripolyphosphate combined microporous sol grouting material. According to the preparation method of the grouting material combining the silica tripolyphosphate and the microporous sol, the imported nano sol is adopted as a binding agent, and the silica tripolyphosphate is added, so that the strength and the tensile resistance of the grouting material can be effectively improved, the influence of the fluidity and the physical property of the grouting material is improved, the cracking phenomenon after the grouting material is solidified and formed is prevented or delayed, a thermal resistance layer can be formed between the cooling wall and the furnace skin, the heat transfer efficiency is effectively ensured, the heat insulation effect is improved, and the service life of the cooling wall is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of refractory materials, in particular to a preparation method of a silica tripolyphosphate combined microporous sol grouting material.
Background
At present, when grouting materials are used for grouting operation of domestic iron-smelting blast furnaces, cement or sol is mostly adopted as an additive bonding agent of grouting materials, a preparation method using cement as the bonding agent is a traditional preparation method which is used up to now, the preparation method using sol as the bonding agent is developed in recent years, and the strength, the fluidity and the thermal conductivity are optimized again. Although the two technical methods for preparing grouting materials are widely applied in China, the application effect of the grouting materials is very limited, irregular cracks can possibly appear in the grouting materials after a period of time, and the problems of 'channeling gas', 'redness of a furnace shell', 'unbalance of temperature of a water cooling wall', and the like still appear after the grouting materials are used in a blast furnace.
In this regard, the invention provides a preparation method of the silica tripolyphosphate combined with the microporous sol grouting material, which improves the performance of the grouting material, prolongs the service life of the material, improves the strength, the self-fluidity and the heat conductivity of the material, prolongs the service life of a blast furnace and improves the economic benefit of steel enterprises.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the preparation method of the silica tripolyphosphate combined microporous sol grouting material has the advantages of good material performance, long service cycle and the like, and solves the problems that irregular cracks possibly occur in the grouting material after a period of time, gas channeling, furnace shell redness, water-cooling wall temperature unbalance and the like still occur after the blast furnace is used.
(II) technical scheme
In order to achieve the purposes of good material performance and long service cycle, the invention provides the following technical scheme:
a preparation method of a silica tripolyphosphate combined microporous sol grouting material comprises the following steps: either the first method or the second method,
the first method comprises the following steps:
step 1, adding a proper amount of silicon tripolyphosphate powder and grouting material dry powder into a stirrer, directly adding the powder into silica sol, and uniformly mixing the powder and the slurry by the stirrer to obtain the silicon tripolyphosphate combined microporous sol grouting material;
the second method comprises the following steps:
and 2, taking a proper amount of the silicon tripolyphosphate powder, directly adding the silicon tripolyphosphate powder into the grouting material dry powder, uniformly mixing the powder by a stirrer, and then adding the silica sol to uniformly mix the powder, thereby obtaining the silicon tripolyphosphate-bonded microporous sol grouting material.
Preferably, the silica sol is imported nano sol, and the grouting material dry powder is prepared by stirring and mixing low-iron mullite and composite micro powder.
Preferably, the construction temperature of the silicon tripolyphosphate combined microporous sol grouting material is 5-40 ℃, and the relative humidity is less than or equal to ninety percent.
Preferably, when the construction temperature of the silicon tripolyphosphate combined with the microporous sol grouting material is lower than 5 ℃, heat preservation measures are needed.
Preferably, when the construction of the tripolyphosphate combined with the microporous sol grouting material is carried out, the grouting material is stirred for 3-5min by a stirrer, and all gaps between the equipment can be filled without vibrating when the grouting material is pressed into the equipment by a grouting machine.
Preferably, the amount of the silicon tripolyphosphate is 2% -4% of the amount of the silica sol.
(III) beneficial effects
Compared with the prior art, the invention provides a preparation method of the silica tripolyphosphate combined microporous sol grouting material, which has the following beneficial effects:
according to the preparation method of the grouting material combining the silica tripolyphosphate and the microporous sol, the imported nano sol is adopted as a binding agent, and the silica tripolyphosphate is added, so that the strength and tensile resistance of the grouting material can be effectively improved, the influence of the fluidity and physical properties of the grouting material is improved, the cracking phenomenon after solidification and forming of the grouting material is prevented or delayed, a thermal resistance layer can be formed between a cooling wall and a furnace skin, the heat transfer efficiency is effectively ensured, the heat insulation effect is improved, the service life of the cooling wall is effectively prolonged, the common phenomena of high temperature of channeling gas and furnace shell in the operation of a blast furnace can be solved, and the practicability of the grouting material combining the silica tripolyphosphate and the microporous sol is ensured.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A preparation method of a silica tripolyphosphate combined microporous sol grouting material comprises the following steps: either the first method or the second method,
the method one comprises the following steps:
step 1, adding a proper amount of silicon tripolyphosphate powder and grouting material dry powder into a stirrer, directly adding the silicon sol, and uniformly mixing the silicon tripolyphosphate powder and the grouting material dry powder by the stirrer to obtain silicon tripolyphosphate combined microporous sol grouting material (HXZL-1);
the second method comprises the following steps:
and 2, taking a proper amount of the silicon tripolyphosphate powder, directly adding the silicon tripolyphosphate powder into the grouting material dry powder, uniformly mixing the powder by a stirrer, and then adding the silica sol to uniformly mix the powder, thereby obtaining the silicon tripolyphosphate-bonded microporous sol grouting material (HXZL-1).
The silica sol adopts imported nano sol, the imported nano sol is used as a bonding agent, and the main component is silicon dioxide (SiO 2 ) The grouting material dry powder is prepared by stirring and mixing low-iron mullite and composite micro powder, and the silicon tripolyphosphate is an organosilicon compound and has the chemical formula of H 4 O 16 P 4 Si, which has excellent oxidation resistance, corrosion resistance and heat resistance, can thus effectively improve the strength of the silica sol solution. The silicon phosphate can be decomposed into silicon dioxide and orthosilicate at high temperature, has good fire resistance, and in addition, the silicon phosphate also has excellent impermeability and stretching resistance, and can effectively inhibit leakage and stretching of the silica sol solution, so that the strength of the silica sol solution is improved, and the decomposition formula at high temperature is as follows:
H 4 O 16 P 4 si (high temperature) =h 4 SiO 4 ·Sio 2
Typical technical indexes of the product are shown in the following table:
the construction temperature of the silicon tripolyphosphate combined microporous sol grouting material is 5-40 ℃, and the relative humidity is less than or equal to ninety percent.
And when the construction temperature of the tripolyphosphate combined microporous sol grouting material is lower than 5 ℃, heat preservation measures are needed.
When the construction of the microporous sol grouting material is combined with the silicon tripolyphosphate, the grouting material is required to be stirred for 3-5min, the grouting material is pressed into the equipment through a grouting machine, all gaps between the equipment can be filled without vibrating, stirring is carried out during construction, the materials are prevented from being uneven due to precipitation when the materials are placed, so that the uniformity of the materials is ensured, the construction effect is ensured, the strength and the tensile resistance of the grouting material can be effectively improved through the addition of the silicon tripolyphosphate, the influence of the fluidity and the physical property of the grouting material is improved, the shrinkage after solidification of the refractory material between a furnace shell and a cooling wall is avoided, the cracking phenomenon is avoided, the gas leakage phenomenon between the furnace shell and the cooling wall is avoided, the high-temperature gas flow scouring is reduced, the relatively stable operation environment is provided for a cooling system, the temperature in the furnace is favorably maintained, a thermal resistance layer is formed between the cooling wall and the furnace shell, the heat transfer efficiency is ensured, a solid barrier inside the blast furnace is a foundation for the safe and smooth production of the blast furnace, the filler heat balance between the cooling wall is favorable, the heat conduction is improved, the service life of the cooling wall is prolonged, the cooling wall is shortened, the cooling cost is better than the common cement casting period is shortened, the common cost is convenient and the manufacturing cost is shortened, and the benefit is better than the common enterprises.
The usage amount of the silicon tripolyphosphate is 2% -4% of that of the silica sol.
Test example:
2200m from Hunan certain Steel works 3 The blast furnace is overhauled in 12 months of 2018, the average utilization coefficient of the production of the blast furnace after the production of the blast furnace reaches 2.32, the fuel consumption index is 508kg/t, the daily iron production is 4517t/d, the problems of gas leakage in the furnace, overhigh local temperature of a furnace shell and the like are solved, the middle repair and reconstruction project is carried out in 12 months of 2022, when the blast furnace is baked after the construction is finished, the positions of the cooling walls of the fourth and fifth belts of the furnace hearth and the eighth belt of the furnace body are filled with grout, and the material is selected from silicon tripolyphosphateAnd combining microporous sol grouting material (HXZL-1).
And (3) hanging 1t of dry powder into a 2.5t stirrer, adding 120kg of silica sol, adding 4kg of dry powder of silicon tripolyphosphate, stirring in the stirrer for 3min, curing for 3min, pressing the dry powder into the space between the furnace shell and the cooling wall by a grouting machine, and filling all gaps between the devices without vibrating.
Before the blast furnace is dried, repairing the original thermocouple hole, the grouting hole and the exhaust hole on the furnace shell, replacing the valve after dredging the original hole, taking the upper part as the exhaust hole, taking the lower part as the grouting hole, taking the depth of the hole as the reference by penetrating the furnace shell, and taking the concrete hole as the main preliminary plan as follows:
the upper part of the eighth cooling wall is provided with holes (or old holes) at the transverse seam of the ninth cooling wall, for example, the new cooling wall is tightly connected, and one hole is provided with holes with the interval of 1.5-2.5 meters to serve as exhaust holes; the lower part of the eighth cooling wall is provided with holes (or old holes) at the transverse seam of the seventh cooling wall, for example, the new cooling wall is connected more tightly, grouting is carried out at intervals of 1.5-2.5 m, and the eighth cooling wall and the exhaust holes are arranged in staggered arrangement (the exhaust holes can be less than grouting holes).
The upper part of the fourth five newly-installed cooling wall is provided with holes (or old holes are utilized) at the transverse seam of the sixth cooling wall, if the new cooling wall is tightly connected, one hole is provided with 3-4 air openings as an exhaust hole; and the lower part of the newly-installed cooling wall of the fourth belt is provided with holes (or used holes) at the transverse joint of the cooling wall of the third belt, and the holes of the air openings are provided with grouting holes at intervals of 3-4, and are staggered with the exhaust holes (the exhaust holes can be less than the grouting holes).
The standard setting of each pressing amount is less than 300 kg/hole, the same hole needs to be pressed into pulp for many times, the interval time is not less than 1 hour, one hole can not be pressed into multiple times at one time, one hole presses pulp, the holes on two adjacent sides are discharged, and then the holes are replaced to the adjacent holes for pressing pulp again.
All grouting holes and exhaust holes are opened before a blast furnace is dried, air is exhausted during drying, grouting is not performed in advance, grouting is performed after the temperature of the blast furnace is raised to a high temperature section, grouting is performed in place once, and the jointing work is required to meet the requirement after the tuyere zone and the fifth zone cooling wall are installed, so that no slurry leakage is achieved.
The grouting material dosage is 80t (containing dry powder and binding agent), the furnace is smoothly opened for tapping after furnace baking, the furnace temperature is stable after one week of furnace opening, the furnace condition is good, the phenomenon of blow-by gas and air leakage is avoided, the cooling wall water temperature is stable, the utilization coefficient of the blast furnace is 2.92, the advanced industry level and the best history level are achieved, the fuel consumption index is 512kg/t, the best history achievement is created, the blast furnace molten iron yield is created to be the best 5113t/d, and the highest daily record is created.
The beneficial effects of the invention are as follows:
according to the preparation method of the grouting material combining the silica tripolyphosphate and the microporous sol, the imported nano sol is adopted as a binding agent, and the silica tripolyphosphate is added, so that the strength and tensile resistance of the grouting material can be effectively improved, the influence of the fluidity and physical properties of the grouting material is improved, the cracking phenomenon after solidification and forming of the grouting material is prevented or delayed, a thermal resistance layer can be formed between a cooling wall and a furnace skin, the heat transfer efficiency is effectively ensured, the heat insulation effect is improved, the service life of the cooling wall is effectively prolonged, the common phenomena of high temperature of channeling gas and furnace shell in the operation of a blast furnace can be solved, and the practicability of the grouting material combining the silica tripolyphosphate and the microporous sol is ensured.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The preparation method of the silica tripolyphosphate combined microporous sol grouting material is characterized by comprising the following steps of: either the first method or the second method,
the first method comprises the following steps:
step 1, adding a proper amount of silicon tripolyphosphate powder and grouting material dry powder into a stirrer, directly adding the powder into silica sol, and uniformly mixing the powder and the slurry by the stirrer to obtain the silicon tripolyphosphate combined microporous sol grouting material;
the second method comprises the following steps:
and 2, taking a proper amount of the silicon tripolyphosphate powder, directly adding the silicon tripolyphosphate powder into the grouting material dry powder, uniformly mixing the powder by a stirrer, and then adding the silica sol to uniformly mix the powder, thereby obtaining the silicon tripolyphosphate-bonded microporous sol grouting material.
2. The method for preparing the silica tripolyphosphate-microporous sol grouting material according to claim 1, wherein the silica sol is imported nano sol, and the grouting material dry powder is prepared by stirring and mixing low-iron mullite and composite micro powder.
3. The method for preparing the silica tripolyphosphate-bonded microporous sol grouting material according to claim 2, wherein the construction temperature of the silica tripolyphosphate-bonded microporous sol grouting material is 5-40 ℃, and the relative humidity is less than or equal to ninety percent.
4. The method for preparing the silica tripolyphosphate-bonded microporous sol grouting material according to claim 3, wherein when the construction temperature of the silica tripolyphosphate-bonded microporous sol grouting material is lower than 5 ℃, heat preservation measures are needed.
5. The method for preparing the silica tripolyphosphate-bonded microporous sol grouting material according to claim 4, wherein the construction of the silica tripolyphosphate-bonded microporous sol grouting material requires stirring for 3-5min by a stirrer, and all gaps between the devices can be filled without vibrating while being pressed into the devices by a grouting machine.
6. The method for preparing the silica tripolyphosphate-bonded microporous sol grouting material according to claim 5, wherein the amount of the silica tripolyphosphate is 2% -4% of the amount of the silica sol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311177891.3A CN117105681A (en) | 2023-09-13 | 2023-09-13 | Preparation method of silicon tripolyphosphate combined microporous sol grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311177891.3A CN117105681A (en) | 2023-09-13 | 2023-09-13 | Preparation method of silicon tripolyphosphate combined microporous sol grouting material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117105681A true CN117105681A (en) | 2023-11-24 |
Family
ID=88810983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311177891.3A Pending CN117105681A (en) | 2023-09-13 | 2023-09-13 | Preparation method of silicon tripolyphosphate combined microporous sol grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117105681A (en) |
-
2023
- 2023-09-13 CN CN202311177891.3A patent/CN117105681A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101585710B (en) | Refractory material for coal loading port of coke oven | |
| CN101423400B (en) | Refractory materials and refractory equipment for aluminum alloy melt casting, and method for preparing refractory equipment | |
| CN103553665B (en) | Corundum amorphous fireproof anti-explosive material capable of realizing quick furnace drying and application method thereof | |
| CN101830713B (en) | Firm can plastic and preparation method thereof | |
| CN110724780B (en) | Pressing-in method of high-heat-conductivity carbon composite pressing material | |
| CN105732052A (en) | Nano silica sol combination hearth self-flowing material and preparation method thereof | |
| CN102992805B (en) | High-thermal conductivity ultramicropore carbon brick and preparation method thereof | |
| CN104529495A (en) | Skimming tool and production process | |
| CN110449546A (en) | A kind of preparation process of riser precoated sand | |
| CN107010965B (en) | Quick-hardening type blast furnace hearth repairing material and preparation method thereof | |
| CN117105681A (en) | Preparation method of silicon tripolyphosphate combined microporous sol grouting material | |
| CN113045323A (en) | Gradient heat-interception heat-preservation material and preparation method and application thereof | |
| CN109055639B (en) | High-heat-conduction long-life blast furnace hearth and brick lining building method | |
| CN102839370B (en) | Preparation method of ceramic composite steel tube | |
| CN104355639B (en) | A kind of cement kiln coal injection pipe dedicated pouring material | |
| CN103922759A (en) | Preparation method of silicon carbide wear-resistant fireproof wind-guiding wall crossbeam and wind-guiding wall brick | |
| CN104654805B (en) | A kind of vacuum drying oven quartz resistance tube heater and preparation method thereof | |
| CN104194804B (en) | A kind of coke oven coke oven uprising tube root sealer method | |
| CN108117401B (en) | Quick-drying self-flow castable for permanent layer of ladle | |
| CN102391005A (en) | Impacted slurry material used for repairing blast furnace body cracks, and preparation method thereof | |
| CN103224800B (en) | Coke oven door integral pouring process | |
| CN207132731U (en) | A kind of cross bar type cement kiln wall preformed bricks | |
| CN102093028B (en) | High-strength magnesium steel heat-insulating material, preparation method thereof and heat-insulating block made of high-strength magnesium steel heat-insulating material | |
| CN111410521A (en) | Homogenized alumina non-oxide composite material castable and preparation method thereof | |
| CN104876593A (en) | Preparation method of acid-resistant prefabricated part for carbonization furnaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |