CN104961476A - Quick-drying repair refractory material and preparation method thereof - Google Patents

Abstract

The invention discloses a quick-drying repair refractory material, which is composed of the following raw materials by weight part: 10-20 of celestite, 10-20 of expanded perlite, 3-4 of terpene resin, 30-40 of high aluminium bauxite, 20-30 of corundum, 0.3-1 of propenol, 0.3-0.5 of royal jelly, 10-16 of flax fiber, 2-3 of glacial acetic acid, 26-30 of tetraethyl orthosilicate, 80-102 of 6-10% ammonia water, 100-110 of 3-5% hydrogen peroxide, 1-2 of sodium molybdate, and 0.1-0.3 of diethanolamine. The tetraethyl orthosilicate involved in the invention is hydrolyzed into silanol sol under the condition of adding the catalyst glacial acetic acid, the silanol sol is mixed with a fiber activation solution, and by evaporation of the solvent, a heterocomplex containing carbon and silicon can be obtained, and finally high temperature carbonization is carried out, and the carbon source is provided by the fiber activation solution, thus obtaining a carbon silicon composite additive. The carbon silicon composite additive has the advantages of stable chemical properties, high heat conductivity coefficient, small thermal expansion coefficient, thermal shock resistance, light weight, and high strength.

Description

A kind of fast drying repair refractory materials and preparation method thereof

Technical field

The present invention relates to a kind of refractory materials, particularly relate to a kind of fast drying repair refractory materials and preparation method thereof.

Background technology

Refractory materials refers to that refractoriness is not less than a class ceramic of 1580 DEG C.Refractoriness refers to that refractory materials cone-shaped body sample is not having in loading situation, resists high temperature action and does not soften molten centigradetemperature.But only define with refractoriness and can not describe refractory materials, 1580 DEG C is not absolute comprehensively.Now be defined as the material that all physicochemical property allow it to use in high temperature environments and be called refractory materials.Refractory materials is widely used in the industrial circles such as metallurgy, chemical industry, oil, machinofacture, silicate, power, and in metallurgical industry, consumption is maximum, accounts for the 50%-60% of ultimate production.

Carbon composite refractory is raw material by two kinds or two or more refractory oxide of different nature and carbon materials and non-oxidic material, the heterogeneous composite refractory of one that carbonaceous organic material is made as bonding agent.The oxide compound adopted mainly contains MgO, Al2O3, ZrO2 and MgAl2O4, carbon is natural graphite mainly, non-oxidized substance is mainly the metals such as Al, Si, Mg, the alloy of AlSi, AlMg class and SiC, B4C mono-compound of class, then in addition shaping by adding the bonding agent such as resin or pitch, the composite refractory be made up of oxide compound, carbon, non-oxygen compound and bonding agent can be obtained.

Summary of the invention

The object of the invention is just to provide a kind of fast drying repair refractory materials and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of fast drying repair refractory materials, it is made up of the raw material of following weight parts:

The hydrogen peroxide 100-110 of ammoniacal liquor 80-102,3-5% of lazurite 10-20, pearlstone 10-20, terpine resin 3-4, alumine 30-40, corundum 20-30, vinylcarbinol 0.3-1, royal jelly 0.3-0.5, flax fiber 10-16, Glacial acetic acid 2-3, tetraethoxy 26-30,6-10%, Sodium orthomolybdate 1-2, diethanolamine 0.1-0.3.

A preparation method for fast drying repair refractory materials, comprises the following steps:

(1) mixed by the hydrogen peroxide of the ammoniacal liquor of 6-10%, 3-5%, stirring, is activation solution;

(2) joined by flax fiber in above-mentioned activation solution, supersound process 1-2 hour, adds Sodium orthomolybdate, stirs, and regulates PH to be neutral, obtains fiber activation liquid;

(4) above-mentioned tetraethoxy is joined in 8-10 dehydrated alcohol doubly, stirring and dissolving, is added drop-wise in fiber activation liquid, after dropwising by lysate, add Glacial acetic acid, at 40-45 DEG C, react 10-12 hour, with dehydrated alcohol and distilled water, product is washed successively, filter, vacuum calcining: vacuum tightness is 8-10Pa, temperature rise rate is 80-100 DEG C/min, is incubated roasting 10-12 h after being warmed up to 1200-1300 DEG C, obtains carbon silicon composite assistant;

(5) by royal jelly, vinylcarbinol, diethanolamine mixing, add terpine resin after stirring, 70-75 DEG C minute lower insulated and stirred 3-5 minute, obtains resin glue;

(6) by lazurite, pearlstone mixing, calcine 1-2 hour at 800-900 DEG C, after cooling, wear into fine powder, join in the sulphuric acid soln of 7-10mol/l and soak 2-3 hour, filter, obtain filter residue;

(7) alumine is calcined 1-2 hour at 700-800 DEG C, fine powder is worn into after cooling, join in the sulphuric acid soln of the 7-10mol/l of 1-2 times of weight and soak 2-3 hour, filter, the sodium hydroxide solution of 15-20mol/l is added in filtrate, adjustment PH is 7-7.8, leaves standstill 40-50 minute, obtains high alumina slag;

(8) filter residue obtained in above-mentioned steps, high alumina slag are mixed, wash 3-4 time, dry, mixed rolling 20-30 minute, adds resin glue, mixed rolling 6-10 minute, add each raw material of residue, adjustment temperature is 80-90 DEG C, mixed rolling 16-20 minute, hot-forming, burn till under 1200-1400 DEG C of condition under buried charcoal atmosphere.

Compared with prior art, advantage of the present invention is:

Tetraethoxy of the present invention is silanol colloidal sol in the Water Under solution that catalyzer Glacial acetic acid adds, by silanol colloidal sol, the mixing of fiber activation liquid, pass through evaporating solvent, obtain the heterocomplex of carbon containing, silicon, eventually pass high temperature cabonization, fiber activation liquid provides carbon source, obtains carbon silicon composite assistant, and the stable chemical performance of this carbon silico-calcium composite assistant, thermal conductivity is high, thermal expansivity is little, resistance to thermal shock, lightweight, intensity is high;

Refractory materials high-temperature stability of the present invention is good, and resistance to fouling is strong, can improve petrochemical industry two device, flue, heating furnace computer overhaul efficiency, easy construction.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail:

Embodiment:

A kind of fast drying repair refractory materials, it is made up of the raw material of following weight parts:

Hydrogen peroxide 110, Sodium orthomolybdate 1, the diethanolamine 0.3 of the ammoniacal liquor 102,5% of lazurite 20, pearlstone 20, terpine resin 3, alumine 40, corundum 30, vinylcarbinol 0.3, royal jelly 0.5, flax fiber 16, Glacial acetic acid 3, tetraethoxy 30,10%.

A preparation method for fast drying repair refractory materials, comprises the following steps:

(1) by the ammoniacal liquor of 10%, 5% hydrogen peroxide mixing, stirring, is activation solution;

(2) joined by flax fiber in above-mentioned activation solution, supersound process 1 hour, adds Sodium orthomolybdate, stirs, and regulates PH to be neutral, obtains fiber activation liquid;

(4) above-mentioned tetraethoxy is joined in the dehydrated alcohol of 10 times, stirring and dissolving, is added drop-wise in fiber activation liquid, after dropwising by lysate, add Glacial acetic acid, react 12 hours at 45 DEG C, with dehydrated alcohol and distilled water, product is washed successively, filter, vacuum calcining: vacuum tightness is 10Pa, temperature rise rate is 100 DEG C/min, is incubated roasting 12 h after being warmed up to 1300 DEG C, obtains carbon silicon composite assistant;

(5) by royal jelly, vinylcarbinol, diethanolamine mixing, add terpine resin after stirring, 75 DEG C of minutes lower insulated and stirred 5 minutes, obtain resin glue;

(6) by lazurite, pearlstone mixing, calcine 1 hour at 900 DEG C, after cooling, wear into fine powder, join in the sulphuric acid soln of 7-10mol/l and soak 3 hours, filter, obtain filter residue;

(7) alumine is calcined 2 hours at 800 DEG C, after cooling, wear into fine powder, join in the sulphuric acid soln of the 10mol/l of 2 times of weight and soak 3 hours, filter, in filtrate, add the sodium hydroxide solution of 20mol/l, regulate PH to be 7.8, leave standstill 50 minutes, obtain high alumina slag;

(8) filter residue obtained in above-mentioned steps, high alumina slag are mixed, wash 3 times, dry, mixed rolling 30 minutes, add resin glue, mixed rolling 6-10 minute, adds each raw material of residue, and adjustment temperature is 90 DEG C, mixed rolling 20 minutes, hot-forming, burn till under 1400 DEG C of conditions under buried charcoal atmosphere.

Performance test:

Refractory materials of the present invention is pressed GB/T13244 and detect oxidation-resistance (1000 DEG C × 3h), practical decarburized depth is 4.6mm; Detecting the heat-shock resistance of 1100 DEG C of water-cooleds by YB/T376.1, there is not crackle in the test that sample can stand 8 times; High temperature break resistant intensity is 7.9MPa.

Claims (2)

1. a fast drying repair refractory materials, is characterized in that what it was made up of the raw material of following weight parts:

The hydrogen peroxide 100-110 of ammoniacal liquor 80-102,3-5% of lazurite 10-20, pearlstone 10-20, terpine resin 3-4, alumine 30-40, corundum 20-30, vinylcarbinol 0.3-1, royal jelly 0.3-0.5, flax fiber 10-16, Glacial acetic acid 2-3, tetraethoxy 26-30,6-10%, Sodium orthomolybdate 1-2, diethanolamine 0.1-0.3.

2. a preparation method for fast drying repair refractory materials as claimed in claim 1, is characterized in that comprising the following steps:

(1) mixed by the hydrogen peroxide of the ammoniacal liquor of 6-10%, 3-5%, stirring, is activation solution;

(2) joined by flax fiber in above-mentioned activation solution, supersound process 1-2 hour, adds Sodium orthomolybdate, stirs, and regulates PH to be neutral, obtains fiber activation liquid;

(4) above-mentioned tetraethoxy is joined in 8-10 dehydrated alcohol doubly, stirring and dissolving, is added drop-wise in fiber activation liquid, after dropwising by lysate, add Glacial acetic acid, at 40-45 DEG C, react 10-12 hour, with dehydrated alcohol and distilled water, product is washed successively, filter, vacuum calcining: vacuum tightness is 8-10Pa, temperature rise rate is 80-100 DEG C/min, is incubated roasting 10-12 h after being warmed up to 1200-1300 DEG C, obtains carbon silicon composite assistant;

(5) by royal jelly, vinylcarbinol, diethanolamine mixing, add terpine resin after stirring, 70-75 DEG C minute lower insulated and stirred 3-5 minute, obtains resin glue;

(6) by lazurite, pearlstone mixing, calcine 1-2 hour at 800-900 DEG C, after cooling, wear into fine powder, join in the sulphuric acid soln of 7-10mol/l and soak 2-3 hour, filter, obtain filter residue;

(7) alumine is calcined 1-2 hour at 700-800 DEG C, fine powder is worn into after cooling, join in the sulphuric acid soln of the 7-10mol/l of 1-2 times of weight and soak 2-3 hour, filter, the sodium hydroxide solution of 15-20mol/l is added in filtrate, adjustment PH is 7-7.8, leaves standstill 40-50 minute, obtains high alumina slag;

(8) filter residue obtained in above-mentioned steps, high alumina slag are mixed, wash 3-4 time, dry, mixed rolling 20-30 minute, adds resin glue, mixed rolling 6-10 minute, add each raw material of residue, adjustment temperature is 80-90 DEG C, mixed rolling 16-20 minute, hot-forming, burn till under 1200-1400 DEG C of condition under buried charcoal atmosphere.