CFB wear-resistant anti-cracking self-flowing castable and preparation process thereof

Abstract

The application provides a high-cost-performance self-flowing castable which can solve the problems of difficult pouring construction, cracks and cavities in the design of special-shaped, corner and thin-wall castings, and can overcome stress cracks and structure peeling caused by temperature fluctuation after service. The raw materials of the application include aggregate, fine powder, micro powder, composite binder, water, modified fiber and composite additive liquid. The aggregate, fine powder, micro powder and composite binder are strongly mixed and stirred for 10-15 minutes to prepare a self-flowing castable solid material which is loaded in a plastic bag. The main body of the CFB wear-resistant and anti-cracking self-flowing castable of the application is corundum and chrome corundum material, and has the advantages of high strength, good wear resistance and good corrosion resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of CFB wear-resistant anti-cracking self-flowing castable and its preparation process, belong to inorganic non-metallic material science discipline refractory field. BACKGROUND

[0002] Many high-temperature furnace shells of electric power petrochemical industry often use tortoise shell net or steel fiber reinforced wear-resistant castable without tortoise shell net. The wear-resistant lining with tortoise shell net is composed of cylindrical anchoring nails, end plates, tortoise shell nets and castable linings. The wear-resistant lining without tortoise shell net is composed of side-pulling type circular anchoring nails and castable. When the temperature changes, the tortoise shell net and the side-pulling type circular anchoring nail expand greatly, generating a large tensile stress, which easily causes the lining to bulge or form a gap, and even separate and peel off. Secondly, although the addition of steel fiber has certain benefits for crack prevention, the corrosion and expansion of steel fiber after years of service will also cause stress cracks in the castable, reducing the service life. In addition, it is difficult to insert the vibration rod into the corner joint of the structural member during the construction of the castable, so that the castable is not filled densely, and even voids occur.

[0003] The self-flowing castable is suitable for filling gaps and irregular gaps, and overcomes the problems of voids and non-dense filling. The self-flowing castable is a high-performance castable developed according to the principles of rheology, solid fluid mechanics and close packing. It can flow and degas without vibration, and can be poured into various shapes of construction bodies, especially suitable for use in thin-walled or complex-shaped parts that cannot be vibrated. However, in order to use better fluidity, the current self-flowing material has a large amount of water, which is prone to segregation and bleeding during the construction process, and cracks may occur during drying and high-temperature service, resulting in problems such as reduced strength of the refractory lining, poor wear resistance and erosion resistance. Therefore, the development of a self-flowing material that is friendly to construction, does not bleed, and prevents cracking and explosion is the purpose of the present application. SUMMARY

[0004] The CFB wear-resistant anti-cracking self-flowing castable of the present application aims to overcome the defects of the prior art and provide a high-performance self-flowing castable to solve the problems of difficult pouring construction, cracks and voids in the design of special-shaped, corner and thin-walled pouring bodies. At the same time, it can overcome stress cracks and structural peeling caused by temperature fluctuations after service. The raw materials of the present application include aggregate, fine powder, micron powder, composite binder, water, modified fiber and composite additive liquid. According to the mass fraction, the raw material composition is as follows:

[0005] (1) aggregate, 50-60 parts;

[0006] (2) fine powder, 30-40 parts;

[0007] (3) micron powder, 3-5 parts;

[0008] (4) composite binder, 3-5 parts;

[0009] (5) water, 5-8 parts.

[0010] (6) modified fiber and composite additive liquid, 3-5 parts;

[0011] Further, the aggregate is a mixture of brown corundum obtained after ball milling with a particle size of 1.0-3.0 mm in spherical, spheroidal, and ellipsoidal shapes and chromium corundum obtained after ball milling with a particle size of 1.0-3.0 mm in spherical, spheroidal, and ellipsoidal shapes;

[0012] The fine powder is a mixture of white corundum with a particle size of 0.088-1.0 mm and 0.088-1.0 mm tabular corundum;

[0013] The micro powder is SiO2 micro powder with a particle size of 0.40-1.2 μm;

[0014] The composite binder is a mixture of ρ-Al2O3 and calcium aluminate cement, and the mixing ratio of ρ-Al2O3 and calcium aluminate cement is 10:1-5:1;

[0015] The modified fiber and composite additive liquid are prepared by the following steps:

[0016] First, mix basalt micron fiber cotton and metal aluminum wire; the mixing ratio of basalt micron fiber cotton and metal aluminum wire is 5:1-10:1, the fiber wire of basalt micron fiber cotton is φ 5.0-15 μm, and the aspect ratio (5-15):1, the metal aluminum wire is φ 10-50 μm, and the aspect ratio (50-100):1;

[0017] Second, clean the mixture of basalt micron fiber cotton and metal aluminum wire with 0.005 mol / L dilute hydrochloric acid;

[0018] Third, prepare a modified mother liquor; the ingredients of the modified mother liquor are as follows in terms of mass fraction: propylene glycol monomethyl ether 6-8 parts, butyl methacrylate 3-5 parts, glycerol 2-5 parts, urotropine 1-1.5 parts, cellulose ether 0.1-0.2 parts, octylphenol polyoxyethylene ether 0.1-0.2 parts, propylene glycol 0.3-0.4 parts, sucralose 0.5-0.8 parts, maleic anhydride 0.1-0.2 parts, sodium acrylsulfonate 0.1-0.2 parts, sodium hyaluronate 0.3-0.5 parts, soap salt 0.1-0.2 parts, hydrogen peroxide 0.3-0.5 parts, and water 10-20 parts;

[0019] Fourth, weigh the modified mother liquor and the fiber mixture according to a mass ratio of 50:1-100:1;

[0020] Fifth step, preparation of modified fiber and composite additive liquid, water, basalt micron fiber cotton, aluminum wire, acrylic acid polyethylene glycol monoester, butyl methacrylate, glycerol, urotropine, cellulose ether, octylphenol polyoxyethylene ether, propylene glycol, sucralose, maleic anhydride, acrylic sulfonic acid sodium, sodium hyaluronate, soap salt is mixed, heated to 70 DEG C, stirring 1-2h, while stirring dropwise hydrogen peroxide, then cooled to room temperature 25 DEG C, the modified fiber and composite additive liquid is obtained, plastic bucket loading, for use;

[0021] The preparation process of the CFB wear-resistant anti-cracking self-flowing castable of the application is as follows: the aggregate, fine powder, micro powder and composite binder are strongly mixed and stirred for 10-15 min to prepare the self-flowing castable solid material, which is loaded in a plastic bag, moisture-proof sealed and packaged, and used later.

[0022] Construction and maintenance: when constructing, the self-flowing castable solid material prepared above is added into the modified fiber and its mixture liquid, water is added, and strong stirring is carried out for 10-15 min to obtain the CFB wear-resistant anti-cracking self-flowing castable, which is poured into a mold from a die mouth for construction, and the CFB wear-resistant anti-cracking self-flowing castable automatically flows and spreads by gravity; it can also be pumped for construction. After construction, wet curing is carried out for 72-96 h, the mold is removed, natural drying is carried out for 72-96 h, then baking is carried out at 120 DEG C for 24-48 h, and then slow heating is carried out at 20-30 DEG C / h to the working temperature.

[0023] The CFB wear-resistant anti-cracking self-flowing castable body of the present application is mainly made of corundum and chrome corundum material, which has the advantages of high strength, good wear resistance and good corrosion resistance. The added SiO2 micron powder improves the fluidity of the self-flowing material, and at the same time can fill the small pores, reduce the porosity and increase the compactness of the cast body. After long-term service at high temperature, it gradually reacts with alumina to form mullite, forming a dense sintered body. The use of composite binder to replace part of calcium aluminate cement with ρ-Al2O3 has the characteristics of low calcium and low cement bonding, which can effectively prevent the generation of drying shrinkage cracks after cement hydration. ρ-Al2O3 hydrates to form a gel at room temperature, forming a low-temperature construction strength, and at high temperature, it is converted into corundum and integrated with the cast body. The added basalt is a pure natural inorganic non-metallic material. Basalt fiber cotton has good high temperature resistance, oxidation resistance, high strength, high modulus, high compressive strength and high shear strength. Basalt non-steel fiber can replace steel fiber to solve the difference in expansion and cracks caused by corrosion. The metal aluminum wire has good flexibility after drying and service before the construction of the self-flowing material, and has excellent anti-cracking and anti-bursting effect. The modified metal aluminum wire will be gradually induced to oxidize into alumina fiber after long-term high-temperature service. The alumina fiber and basalt fiber have high strength, high modulus, low thermal expansion coefficient and uniform distribution in the self-flowing cast body matrix, forming an organic composite whole. When an external load is applied to the matrix material, the matrix material will transfer part of the load to the alumina fiber, thereby reducing the load of the matrix material itself, and effectively consuming the stress and crack propagation free energy caused by the service temperature fluctuation, improving the toughness and mechanical properties of the material, and achieving the purpose of crack prevention and spalling resistance. At the same time, the modified fiber and the composite additive liquid have the functions of anti-bleeding, lubrication, degassing, defoaming and water reducing for the self-flowing material, and can induce the metal aluminum wire to convert into alumina fiber after service.

[0024] The CFB wear-resistant anti-cracking self-flowing castable of the present application has the following advantages: (1) excellent fluidity, no bleeding and no layering at low water addition; (2) friendly construction, can self-leveling with flow guide plate, can flow to various special-shaped parts that vibration castable cannot reach, can also be pumped for construction, reducing labor intensity and accelerating construction period; (3) good anti-cracking and anti-bursting effect, 1100℃ and water circulation thermal shock test, cycle number > 25 times; (4) good wear resistance, 25℃ x 24h is 2.0-3.0cm 3 . DETAILED DESCRIPTION

[0025] Example 1

[0026] The CFB wear-resistant anti-cracking self-flowing castable is as follows in terms of weight parts:

[0027] (1) aggregate, 50 parts;

[0028] (2) fine powder, 40 parts;

[0029] (3) micropowder, 5 parts;

[0030] (4) composite binder, 5 parts;

[0031] (5) water, 8 parts.

[0032] (6) modified fiber and composite additive liquid, 5 parts;

[0033] Further, the aggregate is a mixture of brown corundum obtained after ball milling and having a particle size of 1.0-3.0 mm and a spherical, spheroid or ellipsoidal shape, and chromium corundum obtained after ball milling and having a particle size of 1.0-3.0 mm and a spherical, spheroid or ellipsoidal shape, wherein the sum of the spherical rate, the spheroid rate and the ellipsoidal rate is > 95%;

[0034] The fine powder is a mixture of white corundum having a particle size of 0.088-1.0 mm and tabular corundum having a particle size of 0.088-1.0 mm;

[0035] The micropowder is SiO2 micropowder having a particle size of 0.40-1.2 μm;

[0036] The composite binder is a mixture of ρ-Al2O3 and calcium aluminate cement, and the mixing ratio of ρ-Al2O3 and calcium aluminate cement is 5:1;

[0037] The modified fiber and composite additive liquid are prepared by the following steps:

[0038] In the first step, basalt micrometer fiber cotton and metal aluminum wire are mixed, the mixing ratio of basalt micrometer fiber cotton and metal aluminum wire is 5:1, the fiber wire of basalt micrometer fiber cotton has a diameter of φ 5.0-15 μm and an aspect ratio of (5-15):1, and the metal aluminum wire has a diameter of φ 10-50 μm and an aspect ratio of (50-100):1;

[0039] In the second step, the mixture of basalt micrometer fiber cotton and metal aluminum wire is cleaned with 0.005 mol / L dilute hydrochloric acid;

[0040] In the third step, a modified mother liquor is prepared, and the ingredients of the modified mother liquor are as follows in terms of mass fraction: 6 parts of acrylic acid polyethylene glycol monoester, 5 parts of butyl methacrylate, 5 parts of glycerol, 1 part of urotropine, 0.2 parts of cellulose ether, 0.1 part of octylphenol polyoxyethylene ether, 0.4 part of propylene glycol, 0.8 part of sucralose, 0.2 part of maleic anhydride, 0.2 part of sodium acrylsulfonate, 0.5 part of sodium hyaluronate, 0.2 part of soap salt, 0.5 part of hydrogen peroxide and 20 parts of water;

[0041] In the fourth step, the modified mother liquor and the fiber mixture are weighed according to a mass ratio of 50:1;

[0042] In the fifth step, the modified fiber and the composite additive liquid are prepared by mixing water, basalt micron fiber cotton, aluminum wire, acrylic acid polyethylene glycol monoester, butyl methacrylate, glycerol, urotropine, cellulose ether, octylphenol polyoxyethylene ether, propylene glycol, sucralose, maleic anhydride, sodium acrylsulfonate, sodium hyaluronate, and soap salt, heating to 70 DEG C, stirring for 2 hours, adding hydrogen peroxide dropwise while stirring, and then cooling to room temperature of 25 DEG C to obtain the modified fiber and the composite additive liquid, which is loaded in a plastic bucket and used later.

[0043] The preparation process of the CFB wear-resistant anti-cracking self-flowing castable of the application is as follows: the aggregate, fine powder, micro powder, and composite binder are strongly mixed and stirred for 15 minutes to prepare a self-flowing castable solid material, which is loaded in a plastic bag, sealed and packaged to prevent moisture, and used later.

[0044] Construction and maintenance: during construction, the self-flowing castable solid material prepared above is added to the modified fiber and the mixed liquid thereof, and water is added, and the mixture is strongly stirred for 15 minutes to obtain the CFB wear-resistant anti-cracking self-flowing castable, which is poured into a mold from a die for construction, and the CFB wear-resistant anti-cracking self-flowing castable automatically flows and spreads by gravity; or the CFB wear-resistant anti-cracking self-flowing castable can be pumped for construction. After construction, wet curing is performed for 96 hours, the mold is removed, and natural drying is performed for 96 hours, and then the temperature is slowly increased to the working temperature at a rate of 20 DEG C / h after baking at 120 DEG C for 48 hours.

[0045] The anti-thermal shock performance test, anti-cracking and anti-spalling effect of Example 1 are as follows: (1) 1100 DEG C and water circulation anti-thermal shock, cycle number > 25 times; (2) wear resistance, 25 DEG C x 24h is 2.8cm 3 , which exhibits excellent anti-cracking and wear resistance, and the wear resistance reaches the performance of the castable CN107324821A and CN107352981B, but does not need to be vibrated and poured, and the construction is more friendly.

[0046] Example 2

[0047] The CFB wear-resistant anti-cracking self-flowing castable is prepared according to the following raw material formula by weight:

[0048] (1) aggregate, 60 parts;

[0049] (2) fine powder, 30 parts;

[0050] (3) micron powder, 5 parts;

[0051] (4) composite binder, 3 parts;

[0052] (5) water, 5 parts.

[0053] (6) modified fiber and composite additive liquid, 3 parts;

[0054] Further, the aggregate is a mixture of brown corundum and chrome corundum obtained after ball milling, with a particle size of 1.0-3.0 mm, a spherical rate, a quasi-spherical rate and a quasi-ellipsoidal rate of >95%, and the brown corundum and chrome corundum obtained after ball milling have a particle size of 1.0-3.0 mm and a spherical, quasi-spherical or quasi-ellipsoidal shape;

[0055] The fine powder is a mixture of white corundum and tabular corundum with a particle size of 0.088-1.0 mm;

[0056] The micro powder is SiO2 micro powder with a particle size of 0.40-1.2 μm;

[0057] The composite binder is a mixture of ρ-Al2O3 and calcium aluminate cement, with a mixing ratio of 10:1;

[0058] The modified fiber and composite additive liquid are prepared by the following steps:

[0059] In the first step, basalt micron fiber cotton and metal aluminum wire are mixed, with a mixing ratio of 10:1, the basalt micron fiber cotton has a fiber diameter of 5.0-15 μm and a length-diameter ratio of (5-15):1, and the metal aluminum wire has a diameter of 10-50 μm and a length-diameter ratio of (50-100):1;

[0060] In the second step, the mixture of basalt micron fiber cotton and metal aluminum wire is cleaned with 0.005 mol / L dilute hydrochloric acid;

[0061] In the third step, a modified mother liquor is prepared, with the following ingredients: 8 parts of acrylic acid polyethylene glycol monoester, 3 parts of butyl methacrylate, 2 parts of glycerol, 1.5 parts of urotropine, 0.1 part of cellulose ether, 0.2 part of octylphenol polyoxyethylene ether, 0.3 part of propylene glycol, 0.5 part of sucralose, 0.1 part of maleic anhydride, 0.1 part of sodium acrylsulfonate, 0.3 part of sodium hyaluronate, 0.1 part of soap salt, 0.3 part of hydrogen peroxide, and 10 parts of water;

[0062] In the fourth step, the modified mother liquor and the fiber mixture are weighed according to a mass ratio of 100:1;

[0063] In the fifth step, the modified fiber and composite additive liquid are prepared by mixing water, basalt micron fiber cotton, metal aluminum wire, acrylic acid polyethylene glycol monoester, butyl methacrylate, glycerol, urotropine, cellulose ether, octylphenol polyoxyethylene ether, propylene glycol, sucralose, maleic anhydride, sodium acrylsulfonate, sodium hyaluronate, soap salt, and heating to 70℃ for 1 h, while adding hydrogen peroxide dropwise, and then cooling to room temperature of 25℃ to obtain the modified fiber and composite additive liquid, which is loaded in a plastic bucket for use;

[0064] The preparation process of the CFB wear-resistant anti-cracking self-flowing castable of the present application is as follows: the aggregate, fine powder, micron powder and composite binder are strongly mixed and stirred for 10 minutes to prepare the self-flowing castable solid material, which is loaded in a plastic bag, moisture-proof sealed and packaged for later use.

[0065] Construction and maintenance: during construction, the self-flowing castable solid material prepared above is added into the modified fiber and its mixed solution, water is added, and strong stirring is carried out for 10 minutes to obtain the CFB wear-resistant anti-cracking self-flowing castable, which is poured into a mold for construction, and the CFB wear-resistant anti-cracking self-flowing castable relies on its own weight to automatically flow and spread; it can also be pumped for construction. After construction is completed, wet curing is carried out for 72 hours, the mold is removed, natural drying is carried out for 72 hours, and then slow heating is carried out at a rate of 30℃ / h to the working temperature.

[0066] The anti-thermal shock performance test, anti-cracking and anti-spalling effect of Example 2 are as follows: (1) 1100℃ and water circulation anti-thermal shock, cycle number > 25 times; (2) wear resistance, 25℃×24h is 2.0cm 3 . It shows excellent anti-cracking and wear resistance. It shows excellent anti-cracking and wear resistance, and the wear resistance reaches the performance of the same kind of castable CN107324821A and CN107352981B, but does not need to be vibrated and poured, and the construction is more friendly.

[0067] Example 3

[0068] The CFB wear-resistant anti-cracking self-flowing castable, according to weight parts, the raw material formula is as follows:

[0069] (1) aggregate, 55 parts;

[0070] (2) fine powder, 35 parts;

[0071] (3) micron powder, 4 parts;

[0072] (4) composite binder, 4 parts;

[0073] (5) water, 7 parts.

[0074] (6) modified fiber and composite additive liquid, 4 parts;

[0075] Further, the aggregate is a mixture of brown corundum obtained after ball milling with a particle size of 1.0-3.0mm in spherical, spherical-like and ellipsoidal-like shapes and chromium corundum obtained after ball milling with a particle size of 1.0-3.0mm in spherical, spherical-like and ellipsoidal-like shapes, and the sum of the spherical rate, the spherical-like rate and the ellipsoidal-like rate is > 95%;

[0076] The fine powder is a mixture of white corundum with a particle size of 0.088-1.0mm and 0.088-1.0mm tabular corundum;

[0077] The micro powder is SiO2 micro powder with a particle size of 0.40-1.2 microns;

[0078] The composite binder is a mixture of rho-Al2O3 and calcium aluminate cement, and the mixing ratio of rho-Al2O3 and calcium aluminate cement is 7:1.

[0079] The modified fiber and composite additive liquid are prepared by the following steps:

[0080] In the first step, basalt micron fiber cotton and metal aluminum wire are mixed, the mixing ratio of basalt micron fiber cotton and metal aluminum wire is 8:1, the fiber wire of basalt micron fiber cotton is phi 5.0-15 microns, the length-diameter ratio is (5-15):1, the metal aluminum wire is phi 10-50 microns, and the length-diameter ratio is (50-100):1.

[0081] In the second step, the mixture of basalt micron fiber cotton and metal aluminum wire is cleaned by using 0.005 mol / L dilute hydrochloric acid.

[0082] In the third step, a modified mother liquor is configured, and the ingredients of the modified mother liquor are as follows in terms of mass fraction: 7 parts of acrylic acid polyethylene glycol monoester, 4 parts of butyl methacrylate, 4 parts of glycerol, 1.5 parts of urotropine, 0.15 parts of cellulose ether, 0.15 parts of octylphenol polyoxyethylene ether, 0.35 parts of propylene glycol, 0.6 parts of sucralose, 0.15 parts of maleic anhydride, 0.15 parts of sodium acrylsulfonate, 0.4 parts of sodium hyaluronate, 0.15 parts of soap salt, 0.4 parts of hydrogen peroxide, and 15 parts of water.

[0083] In the fourth step, the modified mother liquor and the fiber mixture are weighed according to a mass ratio of 70:1.

[0084] In the fifth step, the modified fiber and composite additive liquid are prepared, and water, basalt micron fiber cotton, metal aluminum wire, acrylic acid polyethylene glycol monoester, butyl methacrylate, glycerol, urotropine, cellulose ether, octylphenol polyoxyethylene ether, propylene glycol, sucralose, maleic anhydride, sodium acrylsulfonate, sodium hyaluronate, soap salt are mixed, heated to 70 DEG C, stirred for 1.5 hours, hydrogen peroxide is added dropwise during stirring, and then the mixture is cooled to room temperature 25 DEG C to obtain the modified fiber and composite additive liquid, which is loaded in a plastic bucket and used.

[0085] The preparation process of the CFB wear-resistant and anti-cracking self-flowing castable of the application is as follows: the aggregate, fine powder, micro powder and composite binder are strongly mixed and stirred for 12 minutes to prepare a self-flowing castable solid material, which is loaded in a plastic bag, moisture-proof and sealed, and used.

[0086] Construction and maintenance: during construction, the solid material prepared above is added to the modified fiber and its mixed solution, water is added, and strong stirring is carried out for 12 min to obtain the CFB wear-resistant and anti-cracking self-flowing castable. The CFB wear-resistant and anti-cracking self-flowing castable is poured into a mold from a die for construction and relies on its own weight to automatically flow and spread. It can also be pumped for construction. After construction, wet curing is carried out for 72 h, the mold is removed, and natural drying is carried out for 72 h. Then, baking is carried out at 120℃ for 36 h, and then the temperature is slowly increased to the working temperature at a rate of 25℃ / h.

[0087] The anti-thermal shock performance test of example 3 is as follows: (1) 1100℃ and water cycle anti-thermal shock, cycle number > 25 times; (2) wear resistance, 25℃×24h is 2.4cm 3 . It shows excellent anti-cracking and wear resistance. It shows excellent anti-cracking and wear resistance, and the wear resistance reaches the performance of the same kind of castable CN107324821A and CN107352981B, but does not need to be vibrated and poured, and the construction is more friendly.

Claims

1. A CFB wear-resistant anti-cracking self-flowing castable, according to mass fraction, raw material composition is: (1) aggregate, 50-60 parts; (2) fine powder, 30-40 parts; (3) micron powder, 3-5 parts; (4) composite binder, 3-5 parts; (5) water, 5-8 parts; (6) modified fiber and composite additive liquid, 3-5 parts; The aggregate is a mixture of brown corundum and chrome corundum in spherical, spherical-like and ellipsoidal shapes with a particle size of 1.0-3.0 mm obtained after ball milling treatment; The fine powder is a mixture of white corundum and tabular corundum with a particle size of 0.088-1.0 mm; The micron powder is SiO2 micron powder with a particle size of 0.40-1.2 μm; The composite binder is a mixture of ρ-Al2O3 and calcium aluminate cement; The modified fiber and composite additive liquid are prepared by the following steps: First step, mix basalt micron fiber cotton and metal aluminum wire; Second step, wash the mixture of basalt micron fiber cotton and metal aluminum wire with 0.005 mol / L dilute hydrochloric acid; Third step, prepare a modified mother liquor, the ingredients of the modified mother liquor are as follows according to mass fraction: propylene glycol monomethyl ether 6-8 parts, butyl methacrylate 3-5, glycerol 2-5 parts, urotropine 1-1.5, cellulose ether 0.1-0.2 parts, octylphenol polyoxyethylene ether 0.1-0.2 parts, propylene glycol 0.3-0.4 parts, sucralose 0.5-0.8 parts, maleic anhydride 0.1-0.2 parts, sodium acrylsulfonate 0.1-0.2 parts, sodium hyaluronate 0.3-0.5 parts, soap salt 0.1-0.2 parts, hydrogen peroxide 0.3-0.5 parts, water 10-20 parts; Fourth step, weigh the modified mother liquor and fiber mixture according to a mass ratio of 50:1-100:1; Fifth step, prepare the modified fiber and composite additive liquid, mix water, basalt micron fiber cotton, metal aluminum wire, propylene glycol monomethyl ether, butyl methacrylate, glycerol, urotropine, cellulose ether, octylphenol polyoxyethylene ether, propylene glycol, sucralose, maleic anhydride, sodium acrylsulfonate, sodium hyaluronate, soap salt, heat to 70℃, stir for 1-2 h, drop hydrogen peroxide while stirring, then cool to room temperature 25℃ to obtain the modified fiber and composite additive liquid.

2. A CFB refractory crack resistant no-flow castable according to claim 1, characterized in that, The mixing ratio of ρ-Al2O3 and calcium aluminate cement is 10:1-5:

1.

3. The CFB anti-abrasion and anti-cracking self-flowing castable according to claim 1, characterized in that, In the first step, the mixing ratio of basalt micron fiber cotton and metal aluminum wire is 5:1-10:1, the fiber silk of basalt micron fiber cotton is φ5.0-15 μm, the aspect ratio is (5-15):1, the metal aluminum wire is φ10-50 μm, the aspect ratio is (50-100):

1.

4. Process for the preparation of a CFB refractory anti-cracking self-flowing castable according to any one of claims 1-3, characterized in that, Mix the aggregate, fine powder, micron powder and composite binder by strong mixing and stirring for 10-15 min to prepare a self-flowing castable solid material, load with a plastic bag, prevent moisture, seal and package, and wait for use.