CN109553434A - A kind of high-strength light haydites of book structure and preparation method thereof - Google Patents
A kind of high-strength light haydites of book structure and preparation method thereof Download PDFInfo
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- CN109553434A CN109553434A CN201811652094.5A CN201811652094A CN109553434A CN 109553434 A CN109553434 A CN 109553434A CN 201811652094 A CN201811652094 A CN 201811652094A CN 109553434 A CN109553434 A CN 109553434A
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- haydites
- haydite
- shale
- temperature
- vermiculite
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000010455 vermiculite Substances 0.000 claims abstract description 35
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 35
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 35
- 239000010451 perlite Substances 0.000 claims abstract description 28
- 235000019362 perlite Nutrition 0.000 claims abstract description 28
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 25
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 24
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052622 kaolinite Inorganic materials 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 16
- 206010016256 fatigue Diseases 0.000 claims abstract description 14
- 239000000292 calcium oxide Substances 0.000 claims abstract description 12
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 12
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 12
- 235000013312 flour Nutrition 0.000 claims abstract description 11
- 239000010881 fly ash Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 15
- 238000012216 screening Methods 0.000 claims description 15
- 238000000855 fermentation Methods 0.000 claims description 11
- 230000004151 fermentation Effects 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 235000013339 cereals Nutrition 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 1
- 239000004566 building material Substances 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 229940037003 alum Drugs 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6565—Cooling rate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Cultivation Of Plants (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to haydite processing technique fields, more particularly to a kind of high-strength light haydites of book structure and preparation method thereof, it is made of the raw material of following mass percent: shale 5%-10%, bauxite 16%-25%, vermiculite 3%-7%, flyash 16%-22%, silica flour 15%-25%, kaolinite 12%-17%, perlite 1%-3%, quick lime 1%-3% and washed-out sand 9%-14%, the preparation process of haydites of book structure of the present invention, increase a zymotechnique before prior art waits firing, haydite obtained has preferable expansion multiple, haydite pore size is uniform, with lower water absorption rate and lower heap density, take into account the requirement to ceramsite concrete light-weight and intensity.
Description
Technical field
The present invention relates to haydite processing technique fields, and in particular to a kind of high-strength light haydites of book structure and its preparation side
Method.
Background technique
Haydite is a kind of inorganic light-weight aggregate, because its density is low, cylindrical compress strength is high, porosity is high, coefficient of softing height, frost resistance
Well, the features such as alkali resistant aggregate reaction is excellent is widely used in building materials, gardening, food and drink, flame-proof thermal insulation material, change
The fields such as work, petroleum, and its application field also is continuing to expand.Haydite is classified according to raw material, be broadly divided into bauxite haydite,
Clay haydite, haydites of book structure, garbage ceramsites, coal gangue haydite, sludge ceramsite, bed mud haydite, lytag etc..But mesh
The bulk density of preceding haydites of book structure is in 300kg/m3Grade or so is difficult to meet building material simultaneously and want to light ceramic
It asks.
Summary of the invention
In view of the deficiencies in the prior art and problem, the present invention provides a kind of high-strength light haydites of book structure and its system
Preparation Method.
The present invention solves scheme used by its technical problem: a kind of high-strength light haydites of book structure, by following quality
The raw material of percentage forms: shale 5%-10%, bauxite 16%-25%, vermiculite 3%-7%, flyash 16%-22%, silica flour 15%-
25%, kaolinite 12%-17%, perlite 1%-3%, quick lime 1%-3% and washed-out sand 9%-14%.
Further, a kind of high-strength light haydites of book structure, is made of the raw material of following degree: shale 8%, aluminium
Alumina 21%, vermiculite 5%, flyash 19%, silica flour 18%, kaolinite 16%, perlite 2%, quick lime 1% and washed-out sand 10%.
A kind of preparation process of high-strength light haydites of book structure, comprising the following steps:
Step 1: respectively by shale, bauxite, vermiculite, kaolinite, perlite through jaw crushing crusher machine, being crushed to partial size is 2-
The particle of 45mm；
Step 2: shale, bauxite, vermiculite, kaolinite, the perlite in step 1 are successively passed through into coarse powder, fine powder pulverizer machine
Tool is crushed, grinding and sieving, shale partial size≤6mm of screening, partial size≤4mm of bauxite, and the granularity of vermiculite power≤
5mm, kaolinic granularity≤6mm, perlite granularity≤6mm；
Step 3: being weighed according to following mass percent: shale 5%-10%, bauxite 16%-25%, vermiculite power 3%-7%, powder
Coal ash 16%-22%, silica flour 15%-25%, kaolinite 12%-17%, perlite 1%-3%, quick lime 1%-3% and washed-out sand 9%-
14%；Above-mentioned each raw material is put into blender, the water that mixture total volume 1/4 is added is sufficiently stirred, and mixing is stirred into
The mixture stirred evenly is sent into storage tank by material, is heated up to 300 DEG C of heat preservations, primary every 20-30min stirring, and to storing
Diameter is persistently blasted in tank in the microbubble of 10-30um, ferment 5-7h；
Step 4: the mixture after fermentation being placed again into blender and is stirred evenly, is then fed into double-roller granulator and is made
Grain obtains the spherolite that partial size is 3-16mm, stands 1-2 hours；
Step 5: spherolite being sent into rotary kiln and is preheated and is roasted, the revolving speed of rotary kiln is 1 rev/min, preheating in rotary kiln
The temperature of band is gradually risen since 100 DEG C to 270 DEG C, and preheating time is 30-40 minutes；Then spherolite enters heat preservation buffering
Band, the temperature for keeping the temperature buffer strip is 280 DEG C, keeps the temperature 5-9 minutes；Then spherolite enters roasting band, the temperature of rotary kiln baking band
It is 1000-1200 DEG C, roasts 6-12 minutes；Last spherolite enters expansion band, and the temperature that rotary kiln expands band is 1300 DEG C, expansion
2-4 minutes, it is burnt into haydite ball；
Step 6: the haydite ball baked feeding cooler being cooled down, keeps haydite ball rapid with 10-20 DEG C/min of rate
It is down to 1000-700 DEG C, is then slowly dropped to 400-500 DEG C with 5-10 DEG C/min of rate, is finally dropped with 10-20 DEG C of rate
To room temperature；Haydite ball warp screening machine screening after cooling is classified into as finished product haydite.
Beneficial effects of the present invention: a kind of high-strength light haydites of book structure of the invention has good voidage and cylinder
Compressive Strength optimizes the proportion of each raw material, and wherein silica flour is hard, wear-resisting, stable chemical performance, and washed-out sand is natural silica Sand through water
The Foundry sand wash, being classified, clay content 1.34%, quality is hard, can guarantee that haydite has biggish intensity, haydite table
Face micro-cracks greatly reduce, and can satisfy the requirement to New Building Materials, and haydite made of each component exists through the invention
On the basis of guaranteeing that haydite is high-intensitive, moreover it is possible to guarantee that haydite has suitable expansion multiple, quality is lighter.
The preparation method of the haydites of book structure increases a fermentation stage, i.e., in mixture before prior art waits firing
It moves in storage tank later, when vermiculite is heated to 300 DEG C, vermiculite can expand under high temperature action, and vermiculite volume can be fast
Speed expands 6-20 times, and the vermiculite volume of unit grain is gradually increased after expanded by heating, and the specific gravity after expansion is 60-180kg/m3,
The adsorptivity of vermiculite itself drives the mixture around vermiculite to wriggle in turn, is sufficiently mixed mixture.And it was fermenting
Journey intermittent is continuously passed through microbubble into the mixture of storage tank, primary at interval of stirring in 3-5 hours with period, utilizes
The small size of microbubble 10-30um sufficiently can be such that microbubble dissolves in mixture, increase the gas porosity and mixing of mixture
Gas flow in material, this portion gas cooperate with carbonate of the mixture in the heated sufficiently expansion of firing stage, mixture simultaneously
Start to decompose volatilization generation gas, the dilation for increasing haydite mitigates haydite quality, optimizes haydite performance more.After granulation
Spherolite to stand 1-2 hour purposes be to allow ferment to continue in room temperature, slight expansion on the basis of base grain has granulating
Lightweight nature.
The preheating temperature of the preparation process strict control warm-up phase of haydites of book structure of the present invention and preheating time, preheating haydite
Stage generates small portion of gas, generates most gas in firing stage.Preheating time is lengthened by control preheating zone temperature
Control temperature slowly rises, and prevents that preheating temperature is excessively high or preheating time is too long and to cause mixture to generate in warm-up phase big
Gas is measured, and by increasing heat preservation buffer strip between preheating zone and roasting band, heat preservation buffer strip temperature, which is only slightly higher than, to be preheated
Band makes the internal temperature of mixture tend to be unified while capable of being further fully warmed-up to mixture, guarantee roasting rank
The performance of section haydite is more stable, while can be reduced the time of roasting again, prevents its surface from netted microscopic checks occur, increases
The granule strength of obtained haydite；And increases expansion band after roasting band, can make up for it partial blend in firing stage
Underexpansion guarantees that haydite has preferable expansion multiple, improves haydite performance.
It is carried out in three steps cooling while cooling, cooling initial stage fast speed, mid-term is slower, and the later period accelerates again, such energy
It is enough to reduce the cooling influence to haydite surface cohesive force rapidly, crackle is prevented, while the middle and later periods accelerates cooling velocity energy again
Enough guarantee haydite intensity with higher.
Haydites of book structure raw material sources of the invention are extensive, function admirable, and the haydite swelling burnt out is good, and haydite aperture is big
It is small that uniformly there is lower water absorption rate and lower heap density, take into account the requirement to ceramsite concrete light-weight and intensity, it is a kind of fine
Heat-insulation and heat-preservation construction material, have good social and economic benefit.
Specific embodiment
Below with reference to embodiment, the present invention is further described.
Embodiment 1: a kind of high-strength light haydites of book structure is made of: shale 10%, aluminium the raw material of following mass percent
Alumina 25%, vermiculite 3%, flyash 16%, silica flour 15%, kaolinite 17%, perlite 1%, quick lime 1% and washed-out sand 12%.
A kind of preparation process of above-mentioned high-strength light haydites of book structure, comprising the following steps:
Step 1: respectively by shale, bauxite, vermiculite, kaolinite, perlite through jaw crushing crusher machine, being crushed to partial size is 2-
The particle of 45mm；
Step 2: shale, bauxite, vermiculite, kaolinite, the perlite in step 1 are successively passed through into coarse powder, fine powder pulverizer machine
Tool is crushed, grinding and sieving, shale partial size≤6mm of screening, partial size≤4mm of bauxite, and the granularity of vermiculite power≤
5mm, kaolinic granularity≤6mm, perlite granularity≤6mm；
Step 3: being weighed according to following mass percent: shale 10%, bauxite 25%, vermiculite 3%, flyash 16%, quartz
Powder 15%, kaolinite 17%, perlite 1%, quick lime 1% and washed-out sand 12%；Above-mentioned each raw material is put into blender, is added mixed
The water for closing material total volume 1/4 is sufficiently stirred, and mixture is stirred into, and the mixture stirred evenly is sent into storage tank, heating
It is kept the temperature to 300 DEG C, it is primary every 20min stirring, and diameter is persistently blasted in the microbubble of 10-30um, fermentation into storage tank
5h；
Step 4: the mixture after fermentation being placed again into blender and is stirred evenly, is then fed into double-roller granulator and is made
Grain obtains the spherolite that partial size is 3-16mm, stands 1-2 hours；
Step 5: spherolite being sent into rotary kiln and is preheated and is roasted, the revolving speed of rotary kiln is 1 rev/min, preheating in rotary kiln
The temperature of band is gradually risen since 100 DEG C to 270 DEG C, and preheating time is 40 minutes；Then spherolite enters heat preservation buffer strip,
The temperature for keeping the temperature buffer strip is 280 DEG C, keeps the temperature 9 minutes；Then spherolite enters roasting band, and the temperature of rotary kiln baking band is 1200
DEG C, it roasts 12 minutes；Last spherolite enters expansion band, and the temperature that rotary kiln expands band is 1300 DEG C, expands 4 minutes, firing pottery
Grain ball；
Step 6: the haydite ball baked feeding cooler being cooled down, drops haydite ball rapidly with 20 DEG C/min of rate
To 700 DEG C, 500 DEG C then are slowly dropped to 10 DEG C/min of rate, room temperature is finally down to 20 DEG C of rate；It is after cooling
The screening of haydite ball warp screening machine is classified into as finished product haydite.
Embodiment 2: a kind of high-strength light haydites of book structure is made of the raw material of following mass percent: shale 5%, aluminium alum
Soil 16%, vermiculite 7%, flyash 22%, silica flour 25%, kaolinite 12%, perlite 2%, quick lime 2% and washed-out sand 9%.
A kind of preparation process of above-mentioned high-strength light haydites of book structure, comprising the following steps:
Step 1: respectively by shale, bauxite, vermiculite, kaolinite, perlite through jaw crushing crusher machine, being crushed to partial size is 2-
The particle of 45mm；
Step 2: shale, bauxite, vermiculite, kaolinite, the perlite in step 1 are successively passed through into coarse powder, fine powder pulverizer machine
Tool is crushed, grinding and sieving, shale partial size≤6mm of screening, partial size≤4mm of bauxite, and the granularity of vermiculite power≤
5mm, kaolinic granularity≤6mm, perlite granularity≤6mm；
Step 3: it is weighed according to following mass percent:: shale 5%, bauxite 16%, vermiculite 7%, flyash 22%, quartz
Powder 25%, kaolinite 12%, perlite 2%, quick lime 2% and washed-out sand 9%.；Above-mentioned each raw material is put into blender, mixing is added
The water of material total volume 1/4 is sufficiently stirred, and the mixture stirred evenly is sent into storage tank, is heated up to 300 DEG C of heat preservations, every
30min stirring is primary, and persistently blasts diameter in the microbubble of 10-30um into storage tank, and ferment 7h；
Step 4: the mixture after fermentation being placed again into blender and is stirred evenly, is then fed into double-roller granulator and is made
Grain obtains the spherolite that partial size is 3-16mm, stands 1-2 hours；
Step 5: spherolite being sent into rotary kiln and is preheated and is roasted, the revolving speed of rotary kiln is 1 rev/min, preheating in rotary kiln
The temperature of band is gradually risen since 100 DEG C to 270 DEG C, and preheating time is 30 minutes；Then spherolite enters heat preservation buffer strip,
The temperature for keeping the temperature buffer strip is 280 DEG C, keeps the temperature 5 minutes；Then spherolite enters roasting band, and the temperature of rotary kiln baking band is 1000
DEG C, it roasts 6 minutes；Last spherolite enters expansion band, and the temperature that rotary kiln expands band is 1300 DEG C, expands 2 minutes, is burnt into haydite
Ball；
Step 6: the haydite ball baked feeding cooler being cooled down, drops haydite ball rapidly with 10 DEG C/min of rate
To 1000 DEG C, 400 DEG C then are slowly dropped to 5 DEG C/min of rate, room temperature is finally down to 10 DEG C of rate；It is after cooling
The screening of haydite ball warp screening machine is classified into as finished product haydite.
Embodiment 3: a kind of high-strength light haydites of book structure is made of the raw material of following mass percent: shale 7%, aluminium alum
Soil 20%, vermiculite 5%, flyash 19%, silica flour 20%, kaolinite 14%, perlite 2%, quick lime 2% and washed-out sand 11%.
A kind of preparation process of above-mentioned high-strength light haydites of book structure, comprising the following steps:
Step 1: respectively by shale, bauxite, vermiculite, kaolinite, perlite through jaw crushing crusher machine, being crushed to partial size is 2-
The particle of 45mm；
Step 2: shale, bauxite, vermiculite, kaolinite, the perlite in step 1 are successively passed through into coarse powder, fine powder pulverizer machine
Tool is crushed, grinding and sieving, shale partial size≤6mm of screening, partial size≤4mm of bauxite, and the granularity of vermiculite power≤
5mm, kaolinic granularity≤6mm, perlite granularity≤6mm；
Step 3: it is weighed according to following mass percent:: shale 7%, bauxite 20%, vermiculite 5%, flyash 19%, quartz
Powder 20%, kaolinite 14%, perlite 2%, quick lime 2% and washed-out sand 11%；Above-mentioned each raw material is put into blender, is added mixed
The water for closing material total volume 1/4 is sufficiently stirred, and mixture is stirred into, and the mixture stirred evenly is sent into storage tank, heating
It is kept the temperature to 300 DEG C, it is primary every 25min stirring, and diameter is persistently blasted in the microbubble of 10-30um into storage tank, ferment 6h；
Step 4: the mixture after fermentation being placed again into blender and is stirred evenly, is then fed into double-roller granulator and is made
Grain obtains the spherolite that partial size is 3-16mm, stands 1-2 hours；
Step 5: spherolite being sent into rotary kiln and is preheated and is roasted, the revolving speed of rotary kiln is 1 rev/min, preheating in rotary kiln
The temperature of band is gradually risen since 100 DEG C to 270 DEG C, and preheating time is 35 minutes；Then spherolite enters heat preservation buffer strip,
The temperature for keeping the temperature buffer strip is 280 DEG C, keeps the temperature 7 minutes；Then spherolite enters roasting band, and the temperature of rotary kiln baking band is 1100
DEG C, it roasts 8 minutes；Last spherolite enters expansion band, and the temperature that rotary kiln expands band is 1300 DEG C, expands 3 minutes, is burnt into haydite
Ball；
Step 6: the haydite ball baked feeding cooler being cooled down, drops haydite ball rapidly with 15 DEG C/min of rate
To 900 DEG C, 450 DEG C then are slowly dropped to 8 DEG C/min of rate, room temperature is finally down to 14 DEG C of rate；Pottery after cooling
Grain ball warp screening machine screening is classified into as finished product haydite.
Haydites of book structure of the invention is tested for the property by related experiment.
Table one: the performance detection table of haydites of book structure of the invention
It is shown by data, haydites of book structure of the invention is in voidage, bulk density, cylindrical compress strength, water absorption rate and loss on ignition
Performance it is all more excellent, can satisfy New Building Materials to the performance requirement of haydite.
Deduction item comparative test in formula:
Table two: the performance detection table of haydites of book structure of the invention in corresponding deduction item comparative test
By table one and table two it is found that the porosity of haydites of book structure obtained drops to when reducing shale mass percent is 4%
29.3%, the porosity relative to haydites of book structure obtained in embodiment 3 is 42.6, and the porosity decline of haydites of book structure is obvious, together
When haydites of book structure obtained cylindrical compress strength by 6.3 MPa in embodiment 3, drop to 4.5 MPa, it is seen that when reducing shale matter
When amount percentage is 4% or less, the voidage of haydites of book structure is too low, and cylindrical compress strength is too low, and experiment effect is much worse than embodiment 3.
In addition, the porosity of haydites of book structure obtained drops to 65%, relatively when improving shale mass percent is 12%
The porosity of haydites of book structure obtained is 42.6 in embodiment 3, and the porosity of haydites of book structure rises obvious, while page obtained
The cylindrical compress strength of rock ceramic granule drops to 5.5 MPa by 6.3 MPa in embodiment 3, it is seen that is when improving shale mass percent
When 12% or more, the voidage of haydites of book structure is excessively high, and cylindrical compress strength is too low, is not able to satisfy the intensity requirement to New Building Materials,
Experiment effect is much worse than embodiment 3.
Table three: haydites of book structure of the invention does not use the performance detection table of fermentation process in the production process
By table one and table three it is found that when not using fermentation process, the porosity of haydites of book structure obtained drops to 20.0%, phase
Porosity for haydites of book structure obtained in embodiment 13 is 42.0, and the porosity decline of haydites of book structure is obvious, is made simultaneously
Haydites of book structure bulk density by 521 kg/m3 in embodiment 1, drop to 381 kg/m3, it is seen that fermented when not using
The voidage of Cheng Shi, haydites of book structure are too low, and cylindrical compress strength is too low, and experiment effect is much worse than embodiment 1.
By table one and table three it is found that when adding gravel, fermentation process only leads to microbubble, shale obtained into mixture
The porosity of haydite drops to 19.3%, and the porosity relative to haydites of book structure obtained in embodiment 13 is 42.0, haydites of book structure
Porosity decline it is obvious, while the bulk density of haydites of book structure obtained is by 521 kg/m in embodiment 13, drop to
397kg/m3, it is seen that when fermentation process does not have vermiculite participation, the voidage of haydites of book structure is too low, and cylindrical compress strength is too low, experiment
Effect is much worse than embodiment 1.
Claims (3)
1. a kind of high-strength light haydites of book structure, it is characterised in that: be made of the raw material of following mass percent: shale 5%-
10%, bauxite 16%-25%, vermiculite 3%-7%, flyash 16%-22%, silica flour 15%-25%, kaolinite 12%-17%, perlite
1%-3%, quick lime 1%-3% and washed-out sand 9%-14%.
2. a kind of high-strength light haydites of book structure according to claim 1, it is characterised in that: by following degree
Raw material composition: shale 8%, bauxite 21%, vermiculite 5%, flyash 19%, silica flour 18%, kaolinite 16%, perlite 2%, raw stone
Ash 1% and washed-out sand 10%.
3. a kind of preparation process of high-strength light haydites of book structure described in claim 1, it is characterised in that: including following step
It is rapid:
Step 1: respectively by shale, bauxite, vermiculite, kaolinite, perlite through jaw crushing crusher machine, being crushed to partial size is 2-
The particle of 45mm；
Step 2: shale, bauxite, vermiculite, kaolinite, the perlite in step 1 are successively passed through into coarse powder, fine powder pulverizer machine
Tool is crushed, grinding and sieving, shale partial size≤6mm of screening, partial size≤4mm of bauxite, and the granularity of vermiculite power≤
5mm, kaolinic granularity≤6mm, perlite granularity≤6mm；
Step 3: being weighed according to following mass percent: shale 5%-10%, bauxite 16%-25%, vermiculite power 3%-7%, powder
Coal ash 16%-22%, silica flour 15%-25%, kaolinite 12%-17%, perlite 1%-3%, quick lime 1%-3% and washed-out sand 9%-
14%；Above-mentioned each raw material is put into blender, the water that mixture total volume 1/4 is added is sufficiently stirred, and mixing is stirred into
The mixture stirred evenly is sent into storage tank by material, is heated up to 300 DEG C of heat preservations, primary every 20-30min stirring, and to storing
Diameter is persistently blasted in tank in the microbubble of 10-30um, ferment 5-7h；
Step 4: the mixture after fermentation being placed again into blender and is stirred evenly, is then fed into double-roller granulator and is made
Grain obtains the spherolite that partial size is 3-16mm, stands 1-2 hours；
Step 5: spherolite being sent into rotary kiln and is preheated and is roasted, the revolving speed of rotary kiln is 1 rev/min, preheating in rotary kiln
The temperature of band is gradually risen since 100 DEG C to 270 DEG C, and preheating time is 30-40 minutes；Then spherolite enters heat preservation buffering
Band, the temperature for keeping the temperature buffer strip is 280 DEG C, keeps the temperature 5-9 minutes；Then spherolite enters roasting band, the temperature of rotary kiln baking band
It is 1000-1200 DEG C, roasts 6-12 minutes；Last spherolite enters expansion band, and the temperature that rotary kiln expands band is 1300 DEG C, expansion
2-4 minutes, it is burnt into haydite ball；
Step 6: the haydite ball baked feeding cooler being cooled down, keeps haydite ball rapid with 10-20 DEG C/min of rate
It is down to 1000-700 DEG C, is then slowly dropped to 400-500 DEG C with 5-10 DEG C/min of rate, is finally dropped with 10-20 DEG C of rate
To room temperature；Haydite ball warp screening machine screening after cooling is classified into as finished product haydite.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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