CN1026408C - Double-component high-temperature-resistant wear-resistant lining material - Google Patents
Double-component high-temperature-resistant wear-resistant lining material Download PDFInfo
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- CN1026408C CN1026408C CN 91108164 CN91108164A CN1026408C CN 1026408 C CN1026408 C CN 1026408C CN 91108164 CN91108164 CN 91108164 CN 91108164 A CN91108164 A CN 91108164A CN 1026408 C CN1026408 C CN 1026408C
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- 239000000463 material Substances 0.000 title claims abstract description 31
- 239000004568 cement Substances 0.000 claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 7
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 6
- 239000010431 corundum Substances 0.000 claims abstract description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 235000006408 oxalic acid Nutrition 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 5
- 229940095064 tartrate Drugs 0.000 claims description 5
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 239000010419 fine particle Substances 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 claims description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 claims description 2
- 229910000400 magnesium phosphate tribasic Inorganic materials 0.000 claims description 2
- 235000011837 pasties Nutrition 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 abstract description 4
- 239000010452 phosphate Substances 0.000 abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 150000003016 phosphoric acids Chemical class 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000004645 aluminates Chemical class 0.000 description 2
- DHAHRLDIUIPTCJ-UHFFFAOYSA-K aluminium metaphosphate Chemical compound [Al+3].[O-]P(=O)=O.[O-]P(=O)=O.[O-]P(=O)=O DHAHRLDIUIPTCJ-UHFFFAOYSA-K 0.000 description 2
- 238000004523 catalytic cracking Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- MHJAJDCZWVHCPF-UHFFFAOYSA-L dimagnesium phosphate Chemical compound [Mg+2].OP([O-])([O-])=O MHJAJDCZWVHCPF-UHFFFAOYSA-L 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- -1 hydrogen aluminum phosphate Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000031864 metaphase Effects 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- HJXDCFUIDHJETK-UHFFFAOYSA-N 3-(2-hydroxypropyl)-5-methyl-1,3-oxazolidin-2-one Chemical compound CC(O)CN1CC(C)OC1=O HJXDCFUIDHJETK-UHFFFAOYSA-N 0.000 description 1
- 229910018626 Al(OH) Inorganic materials 0.000 description 1
- 229910017119 AlPO Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 239000011800 void material Substances 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/346—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention provides a high-temperature-resistant wear-resistant lining material consisting of a component A wet material and a component B dry material. The wet material contains corundum as aggregate and composite adhesive, and the dry material contains fine powder alpha alumina and coagulant, electrically-fused ultrahigh-alumina cement, etc. The invention is easy to store and convenient to use, has higher compressive strength and toughness after being solidified, integrates the advantages of low cement refractory castable and phosphate refractory castable, has wider application temperature range, is particularly suitable for high-temperature and high-scour occasions, can be widely used in the industries of petrochemical industry, metallurgy, building materials and the like, and can be used as a lining material of a high-temperature kiln.
Description
The present invention relates to a kind of amorphous refractory, specifically be used for the refractory castable of the erosion-resistant refractory lining of equipment such as refining catalytic cracking unit, cement rotary kiln, steel rolling tapping spout.
The refractory castable of industrial use mainly contains aluminate mould material, water glass mould material and phosphate pouring material etc.
The water glass refractory castable is to be tackiness agent with water glass, is aggregate and dopant with the grog refractory, adds an amount of setting accelerator and the air-setting concrete made.The water glass refractory castable generally is no more than 1200 ℃, so should not use because fire performance is lower under hot conditions.
Aluminate refractory pouring material is to be tackiness agent with luminite cement or low calcium-aluminate cement etc., is the hydraulicity refractory castable that aggregate and admixture are made with clay or bauxite clinker.After this refractory castable used heating, below 400 ℃, internal physical planar water and chemically combined water of crystallization were got rid of, and crystal formation changes thereupon, produced the change procedure of structure, caused the consequence that intensity progressively descends with the temperature rising.To 1200 ℃, before promptly refractory castable began to produce ceramic post sintering, normal temperature strength dropped to Schwellenwert, had only 40～55% of when oven dry intensity, was in life-time service in this case, loosely organized embrittlement phenomenon can occur.Therefore, this refractory castable generally only suits using more than 1200 ℃, so the scope of application is less.Since the eighties, each industrially developed country of the world brings into use low cement content type refractory castable, when the high-alumina cement consumption is reduced to below 8%, and when using ultrafine powders such as active very high silica powder and Calcined polishing aluminum oxide etc. simultaneously, the medium temperature intensity of refractory castable is rised appreciably.It is characterized in that void content is low, the density height, and intensity is all higher in all temperature ranges, load softening point is also higher.But the shortcoming that timeliness changes easily takes place when but having produced construction.The timeliness variation shows with phenomenons such as flash set, delay sclerosis and mobile reductions, has influenced Products Quality.In addition, drying and heat treating regime are extremely tight, and be careless slightly, and mould material inside promptly cracks, peels off, and explosion takes place, and with the intensive sound.
The phosphoric acid salt refractory castable is to be tackiness agent with phosphoric acid or phosphoric acid salt, is a kind of hot refractory concrete that aggregate and adulterant are made with the grog refractory.The phosphoric acid salt refractory castable has higher high temperature strength, refractoriness, high temperature toughness and good heat-shock resistance.In old specification, be used for the heat resistant and wear resistant lining material of equipment such as oil catalytic cracking unit, generally be tackiness agent with the aluminum phosphate, with the corundum aggregate and powder, with aluminium hydroxide setting accelerator.This lining material is a kind of thermosetting material.It is by hydrogenous phosphoric acid salt Al(H
2PO
4)
3In heat-processed with aluminium hydroxide Al(OH)
3The reaction condensation is dewatered and the aluminium metaphosphate Al(PO of formation rock steady structure
3)
2With aluminum orthophoshpate AlPO
4But under room temperature and heating state, intermediate state band hydrogen aluminum phosphate Al(H
2PO
4)
3, Al
2(HPO
4)
3, Al
2(H
2P
2O
7)
3Deng bigger solubleness is arranged in water, in damp atmosphere or in the water, deliquescent effect can take place.For the individual layer erosion-resistant refractory lining, in heat treatment process, can obtain stable aluminum orthophoshpate and aluminium metaphosphate.But the back side for bilayer is lined with the insulated lining that contains big water gaging, in bake process, the band hydrogen phosphalugel of above-mentioned intermediate state can because a large amount of moisture content in the back side pass through the formation of structure is endangered.As the improvement to above-mentioned phosphoric acid salt refractory castable, it is the material of the lining of AA-22 that U.S. Lai Sike (Resco) company has released model.This material is made setting accelerator with magnesium oxide MgO, makes thermoset aluminium matter phosphoric acid salt become the magnesia phosphoric acid salt of cold solidity.
Three water secondary magnesium phosphate MHPO
43H
2The very fast at normal temperatures formation insoluble works of O and solidifying.In heat-processed, phosphoric acid hydrogen aluminium Al
2(HPO
4)
3Further form the rock steady structure of aluminum orthophoshpate, to strengthen three water secondary magnesium phosphate MgHPO
43H
2The structure of O.Thereby can be used for the dual-layer lining that the back side is lined with insulated lining, but this refractory castable still exists maximum operation (service) temperature low slightly, and the defective that the early metaphase cold pressing strength is not high is restricted the scope of application.
The purpose of this invention is to provide a kind of be tackiness agent with the composite phosphate, be the double-component fire resistant wear resistance lining material of setting accelerator with electric smelting superelevation aluminium cement.This lining material is easy to preserve, easy to use, have higher intensity and toughness after the curing, Applicable temperature a wider range is particularly useful for the occasion that high temperature, height wash away.
The present invention is made up of first component wet feed and component B siccative.
First component wet feed comprises following composition (by weight)
70～85 parts in aggregate corundum
5～15 parts of composite adhesives
The component B siccative comprises following composition (by weight)
7～20 parts of powder αYang Hualvs
3～10 parts of setting accelerator electric smelting superelevation aluminium cement
0.2～2 part of fine particle silica
Calcium lignin sulphonate of water reducer 0.01～0.5
The major ingredient of composite adhesive of the present invention is phosphoric acid, aluminum phosphate, trimagnesium phosphate and oxalic acid or citric acid or tartrate.
The preparation method of composite adhesive of the present invention is: active aluminium hydroxide, magnesium oxide are mixed, add water move to pasty state, mix with excess phosphoric acid, attemperation made product viscosity reach 30～50 seconds after reaction finished, add oxalic acid or citric acid or tartrate again, gained filtrate promptly is composite adhesive of the present invention behind the cold filtration.
First component wet feed of the present invention and component B siccative are produced respectively and are packed, and when reality is used, mix mutually, add 2～4 parts in water simultaneously, and construction was immediately carried out maintenance about 2～3 days after mixing thoroughly after the moulding, can put into production use.
The present invention has certain positively effect, it is that the employed material of phosphoric acid salt refractory castable of setting accelerator has carried out organic combination with low cement content type refractory castable with magnesium oxide, the advantage that integrates both, not only hot strength and toughness are higher after this material cured, and maximum operation (service) temperature is also higher.After having added micropowders and water reducer, increase the compactness of solidifying the back material, dwindled remaining linear shrinkage, improved early metaphase intensity and thermal shock resistance.Adopting composite phosphate is the tackiness agent of main body, has strengthened the water resisting property of goods in heat treatment process, add oxalic acid or citric acid or tartrate after, the preservation period that not only makes wet feed increased to 1 year from 3 months of routine, had also improved the early strength of goods.This is because owing to added above-mentioned organic acid; make the activity that in whole tackiness agent, has reduced free ion; controlled the further polymerization of phosphoric acid salt; especially after mixing and stirring with corundum particles; after reaction for some time; progressively formed layer protecting film on the pellet surface; both played " inhibition " effect; make again and produced a kind of " estrangement " between the particle; thereby make can keep loose condition (of surface) for a long time between the particle, when with siccative in setting accelerator electric smelting superelevation aluminium cement and after a certain amount of water mixes and stirs, broken this organic " barrier " immediately; and be accompanied by thermopositive reaction, recovered effect so at short notice again as " composite adhesive ".In addition when wet feed with after siccative mixes, because above-mentioned organic acid exists, avoided because of containing the drawback that trace metal and sulfide can produce gases such as hydrogen, hydrogen sulfide in the siccative, thereby reduced air holes in the construction process, improved the compactness and the wear resistance of lining.Select for use electric smelting superelevation aluminium cement as setting accelerator, make Al
2O
3Content further improve, reduced the low melting point composition, improved the hot strength and the abrasion resistance energy of goods.Last the present invention selects that raw material is domestic all production for use, the alternative imported product of this lining material, thereby saved foreign exchange, improved economic results in society.
Embodiments of the invention, in reactor be that 85% industrial phosphoric acid is heated to 95 ℃ for 100 kilograms with concentration, simultaneously 80 kg of water and 26 kilograms of active aluminium hydroxides and 2 kilograms of magnesium oxide are reconciled into starchiness, under stirring state, slowly mashed prod is added in the reactor, after reaction finished, feed liquid was the water white transparency colloid.Continue then to heat up, control viscosity is 45 seconds (being coated with 25 ℃ in 4-cup), after the cooling 175 gram oxalic acid is dissolved in the 200 gram water fully.When feed liquid in the reactor is cooled to 50 ℃, slowly oxalic acid aqueous solution is added drop-wise in the reactor again, after mixing fully, feed liquid to be filtered, gained filtrate is composite adhesive.
Select 45 kilograms of particle 1～3mm white fused aluminas, 45 kilograms in brown corundum for use, 60 kilograms of＜1mm white fused aluminas, 30 kilograms of 120 order white fused aluminas, 30 kilograms of 24 kilograms of 200 order white fused aluminas and above-mentioned composite adhesives, putting into 250 liter machine,massings simultaneously stirred 20 minutes, promptly making first component wet feed, is the only packed for standby use of a material list with 15 kilograms.
In 250 liter machine,massings, the label that adds Shanghai No.2 fire-resistant Materials Plant production simultaneously is DLS-77 electric smelting superelevation aluminium cement (major ingredient Al
2O
3〉=77%) 50 kilograms, 150 kilograms of 320 order αYang Hualvs, 0.5 kilogram of 4 kilograms of fine silica powders and wooden calcium sulfonate stirred 30 minutes, promptly got the component B siccative, were the only packed for standby use of a material list with 3 kilograms.
Application examples: when reality was used, packing of packing of above-mentioned first component wet feed and component B siccative is cooperated, i.e. the first component: component B was 5: 1(weight), add water 3%(weight in addition), after artificial mixed stirring, can be for construction.Carry out maintenance after the construction, maintenance process is as follows:
Normal temperature maintenance 24 hours;
Normal temperature～50 ℃ even the intensification 3 hours is incubated 2 hours;
50 ℃～110 ℃ evenly heated up 3 hours, are incubated 5 hours;
110 ℃～150 ℃ evenly heated up 3 hours, are incubated 4 hours;
150 ℃～300 ℃ evenly heated up 5 hours, are incubated 3 hours;
300 ℃～500 ℃ evenly heated up 5 hours, are incubated 2 hours;
500 ℃～750 ℃ evenly heated up 5 hours.
Resulting product, through the check of units such as Shanghai building Science Institute, it the results are shown in Table 1, and AA-22 mould material that U.S. Lesco, Inc (Resco) is produced and the performance of low cement content type mould material RS-17A are listed table 1 in simultaneously.
The every index test of the present invention all carries out according to national standard and related standards.Refractoriness is tested according to GB89321.1-88 " refractory materials refractoriness test method ".Density is pressed GB2998-82 " formed insulating refractory product volume density and true porosity test method " test.Ultimate compression strength is pressed YB2208-77 " refractory concrete crushing strength under high temperature detection method " test.Folding strength is pressed GB3001-82 " refractory product strength at normal temperature measuring method " and GB3002-82 " refractory product high temperature break resistant intensity measuring method " test.Heater wire shrinks presses GB8932.7-88 " the thermal expansion test method of refractory product " test.Thermal shock resistance is pressed YB376-76 " thermal shock resistance test method " test.
Table 1
Performance AA-22 RS-17A of the present invention
Refractoriness＞1870 1650(maximum operation (service) temperatures) 1870(maximum operation (service) temperature)
Density Kg/m
2(110 ℃) 2901 2720(815 °) C 2760
Ultimate compression strength (MPa)
110℃????81????20-30
815℃????105????52.5-70????56-84.5
1000℃????110????49-70????63-84.5
105 ℃ of 11 9-10 of folding strength
815℃????16????10-15.5????8.6-12.5
Heater wire shrinks (%)
750℃????0.17????0.1-0.5????0.1-0.6
80 fragmentations of thermal shock resistance
Preservation period 1 year 1 year
Claims (2)
1, a kind of double-component fire resistant wear resistance lining material is the refractory castable that is used for the erosion-resistant refractory lining of high temperature service, it is characterized in that, it is made up of first component wet feed and component B siccative:
A, first component comprise following composition (weight):
70～85 parts in aggregate corundum
5～15 parts of composite adhesives
The main component of described composite adhesive is phosphoric acid, aluminum phosphate, trimagnesium phosphate and oxalic acid or citric acid or tartrate;
B, component B siccative comprise following composition (weight):
7～20 parts of powder αYang Hualvs
3～10 parts of setting accelerator electric smelting superelevation aluminium cement
0.2～2 part of fine particle silica
Calcium lignin sulphonate of water reducer 0.01～0.5
2, double-component fire resistant wear resistance lining material according to claim 1 is characterized in that the preparation method of described composite adhesive is:
Active aluminium hydroxide, magnesium oxide are mixed, add water move to pasty state, with the excess phosphoric acid hybrid reaction, attemperation made viscosity reach 30～50 seconds after reaction finished, and added oxalic acid or citric acid or tartrate again, and gained filtrate is composite adhesive behind the cold filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108164 CN1026408C (en) | 1991-09-07 | 1991-09-07 | Double-component high-temperature-resistant wear-resistant lining material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108164 CN1026408C (en) | 1991-09-07 | 1991-09-07 | Double-component high-temperature-resistant wear-resistant lining material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1070390A CN1070390A (en) | 1993-03-31 |
| CN1026408C true CN1026408C (en) | 1994-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108164 Expired - Fee Related CN1026408C (en) | 1991-09-07 | 1991-09-07 | Double-component high-temperature-resistant wear-resistant lining material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026408C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306912B (en) * | 2008-06-30 | 2010-06-02 | 浙江振申绝热科技有限公司 | Production process and device of foam powder raw material for foamed glass |
| CN103011869B (en) * | 2013-01-10 | 2014-07-09 | 无锡市石油化工设备有限公司 | High-abrasion-resistance refractory liner material and preparation method thereof |
| CN105732060B (en) * | 2016-02-15 | 2019-03-19 | 长兴吉成工业炉有限公司 | A kind of mould material and its manufacturing method for chilling tower |
| CN107117984A (en) * | 2017-06-26 | 2017-09-01 | 辽宁加宝石化设备有限公司 | A kind of low-cost high-toughness wear resistance lining, preparation method and gas-solid separation equipment |
| CN109516831B (en) * | 2018-12-03 | 2019-10-11 | 浙江昕明环境科技有限公司 | A kind of preparation method of aluminum oxide porous material |
| CN114644518A (en) * | 2022-04-15 | 2022-06-21 | 天津金耐达筑炉衬里有限公司 | Lining material for high wear-resisting cyclone separator |
| CN116283234A (en) * | 2023-03-29 | 2023-06-23 | 安徽精公检测检验中心有限公司 | Environment-friendly refractory magnesia brick for cement kiln and preparation method thereof |
-
1991
- 1991-09-07 CN CN 91108164 patent/CN1026408C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1070390A (en) | 1993-03-31 |
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