CN105601254A - Sintered water permeable brick and preparation method thereof - Google Patents
Sintered water permeable brick and preparation method thereof Download PDFInfo
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- CN105601254A CN105601254A CN201610068976.1A CN201610068976A CN105601254A CN 105601254 A CN105601254 A CN 105601254A CN 201610068976 A CN201610068976 A CN 201610068976A CN 105601254 A CN105601254 A CN 105601254A
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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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
- 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
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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
- C04B2235/32—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
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a sintered water permeable brick and a preparation method thereof. The invention belongs to the technical field of building materials, and particularly relates to a sintered water permeable brick. The sintered water permeable brick is prepared from the following components in parts by weight: 55 to 65 parts of coal ash, 20 to 30 parts of clay, and 5 to 25 parts of magnesite powder. The solid waste coal ash is used as a main raw material and bonded by adopting little clay, the magnesite powder is used as a pore-forming agent, and the sintered water permeable brick is obtained by virtue of pressing molding and high-temperature calcining, so that the current situation that the comprehensive utilization rate of the coal ash is low and the environment is polluted is solved; moreover, the cost of the water permeable brick is greatly reduced; and in addition, the prepared water permeable brick has characteristics of good water permeability, good durability, high pressure resistance, good abrasion resistance, and weathering resistance and has an important economic, social and ecological environment-friendly significance.
Description
Technical field
The invention belongs to building material technical field, relate in particular to a kind of sintering brick permeable to water, also relate to the preparation method of described sintering brick permeable to water.
Background technology
Flyash is a kind of composite material like volcano grey matter that coal dust forms after high-temp combustion, is the main solid waste that coal-burning power plant discharges, one of industrial residue that the current discharge capacity of Ye Shi China is larger simultaneously. Along with growing continuously and fast of China's economic, the use amount of coal also increases year by year, and wherein power industry is to use coal rich and influential family, and coal consumption has accounted for the over half of national consumption of coal total amount.
Huge flyash discharge can cause serious environmental pollution and harm. First, flyash stacking can take the land resource of a large amount of preciousnesses. Fly ash grain is tiny, is therefore easy to form dust raising phenomenon, causes dust pollution, and health is produced to harm. In addition, flyash, after rainwater leaching, also can mix with water soil, river etc. near flowing into, causes serious environmental pollution. How reducing the pollution of flyash, flyash is turned waste into wealth, promote the efficient circulation utilization of flyash, is a problem meriting attention.
In long-term Development of Urbanization process, large-scale waterproof ground pavement has replaced original forest, greenery patches and field, form " city desert ", cause Permeable stratum area greatly to increase, make successfully back to nature of urban rainwater, caused underground water to supplement a large amount of minimizings of self-restraint, crest discharge increases greatly. Heavy rain is met in many cities one, and its rainwater on road surface is seepage fast, can only pass through pumping equipment draining, in the time that pumping equipment is not smooth, is easy to cause city waterlogging. Simultaneously, hardened ground has weakened the respiratory function (being vital functions) of urban environment, cause tropical island effect (scorching), airborne dust and noise aggravation, worsen urban microclimate, reduce the comfort level in city, and hardened ground is " death ground ", can affect the ecosystem and the arboreal growth on ground. On the contrary, porous pavement balance urban ecological system, rain, self-restraint rain, water-permeable and air permeable, depositing dust noise abatement are held in flood detention, increase the comfort level of urban residence. Therefore, in order to alleviate the adverse consequences of bringing because road surface is waterproof, various countries start to advocate permeable pavement and conduct extensive research and apply, and water-permeable brick arises at the historic moment as a kind of water permeable paving material wherein.
, contaminated environment insufficient for utilization of fly ash, and sintering brick permeable to water application prospect widely, utilize coal ash for manufacturing for sintering brick permeable to water in increasing the new purposes of the added value of flyash, developing industrial solid castoff flyash, also can reduce sintering manufacturing cost, alleviate the present situation that its raw materials is in short supply.
Chinese patent 201310630550.7 discloses a kind of urban architecture rubbish and coal ash for manufacturing manufacture craft for permeable pavement brick of utilizing, the ecological permeable bricks that adopts cement to prepare as Binder Materials. The method that this patent provides, manufacturing cycle long (more than 28 days), mixing of flyash is lower, and preparation process is comparatively complicated, is unfavorable for promoting.
Chinese patent 201510584587.X discloses a kind of steel fibre coal ash red mud water-permeable brick and preparation method thereof, and this invention, taking steel fibre, brick solid impurity particle, flyash and red mud as raw material, is prepared sintering brick permeable to water after mixing. , there are two problems in the method, the first: three kind of raw material composition is comparatively complicated, and material composition easily produces fluctuation, affects properties of product; The second, the adobe after moulding needs maintenance 3-5 days, and the cycle is long, and efficiency is lower.
Therefore, await proposing a kind of superior performance and prepare sintering brick permeable to water easily.
Summary of the invention
First object of the present invention is defect and the deficiency existing for prior art, and a kind of sintering brick permeable to water is provided, and described sintering brick permeable to water is prepared by the component that comprises following weight portion: 55～65 parts, flyash, 20～30 parts of clays, 5～25 parts of magnesite powders.
Preferably, described sintering brick permeable to water is prepared by the following component of 100 weight portion: 55～65 parts, flyash, 20～30 parts of clays, 15 parts of magnesite powders.
Described weight portion is μ g, mg, and g, the unit of weight well known in the art such as kg, or be its multiple, as 1/100,1/10,10 times, 100 times etc.
Wherein, flyash is to receive and catch the thin ash getting off in the flue gas from coal combustion, the flyash being obtained by burning anthracite or bituminous coal is F class flyash, the flyash being obtained by burning brown coal or ub-bituminous coal is C class flyash, and the present invention preferably adopts the raw material of F class flyash as sintering brick permeable to water, and the advantage that F class flyash has is: as low calcium fly ash, the hydraulicity is poor, cannot serve as cement additire, the market price is lower, and the low calcium fly ash output of China is huge at present.
In order to ensure the quality of sintering brick permeable to water, the present invention preferably adopts II level or I level flyash, and further preferably adopting particle diameter is the flyash of 60～100 orders (preferably 80 orders).
Clay is generally formed after weathering at the earth's surface by silicate mineral, is made up of, and contains the impurity such as sulfate, sulfide, carbonate multiple hydrosilicate and aluminium oxide, alkali metal oxide, alkaline earth oxide. It is the clay of 60～100 orders (preferably 80 orders) that the present invention preferably adopts particle diameter.
After described magnesite powder is ground by magnesite, the chemical composition of magnesite is magnesium carbonate, belongs to trigonal system carbonate mineral. The present invention preferably adopts the magnesite of proportion 2.9～3.1 as the source of magnesite powder, and further preferably the particle diameter of magnesite powder is 60～100 orders (preferably 80 orders).
The present invention utilizes solid waste coal ash as primary raw material, adopt a small amount of clay combination, utilize magnesite powder as pore creating material, the reference rate of flyash is higher, can effectively solve that total utilization of PCA rate is low, the present situation of contaminated environment, and greatly reduce the cost of water-permeable brick.
As preferred embodiments of the present invention, described sintering brick permeable to water is prepared by the component of following weight portion:
55 parts, flyash, 30 parts of clays, 15 parts of magnesite powders.
Or, 60 parts, flyash, 25 parts of clays, 15 parts of magnesite powders.
Or, 65 parts, flyash, 20 parts of clays, 15 parts of magnesite powders.
The sintering brick permeable to water that adopts above-mentioned optional preferred scheme to prepare, excellent combination property, is specially and has good water penetration and water absorption rate, and intensity and density suitable, very suitablely mat formation and use water-permeable brick as square and pavement.
Second object of the present invention is to provide the preparation method of above-mentioned any one sintering brick permeable to water, comprises the steps:
(1) raw material mixes: take flyash according to proportioning, and clay, magnesite powder, adds water to stir after mixing, and the water content that makes compound is 10%～20%;
(2) moulding: compound is compressing, obtain water-permeable brick base substrate;
(3) dry: by natural drying described water-permeable brick base substrate or be dried to water content below 3% under 80～120 DEG C of conditions;
(4) sintering: the dried water-permeable brick base substrate of sintering, cooling with stove afterwards, obtain sintering brick permeable to water.
Wherein, in step (2), the pressure that moulding adopts is 15～25Mpa, is preferably 20Mpa.
In step (4), described in be sintered to according to 4～5 DEG C/min and be warming up to 380～420 DEG C, insulation 20～40min, is then warming up to 1050～1150 DEG C according to 2～3 DEG C/min, insulation 0.5～1.5h.
Preferably, described in be sintered to according to 5 DEG C/min and be warming up to 400 DEG C, insulation 30min, is then warming up to 1050～1150 DEG C according to 3 DEG C/min, insulation 1h.
The preferred preparation method of described sintering brick permeable to water is:
(1) raw material mixes: take flyash according to proportioning, and clay, magnesite powder, adds water to stir after mixing, and the water content that makes compound is 10%～15%;
(2) moulding: the pressure with 15～25Mpa is compressing by compound, obtains water-permeable brick base substrate;
(3) dry: by natural drying described water-permeable brick base substrate or be dried to water content below 3% under 80～120 DEG C of conditions;
(4) sintering: as in kiln, 4～5 DEG C/min is warming up to 380～420 DEG C by dried sintering brick permeable to water base substrate, insulation 20～40min, then be warming up to 1050～1150 DEG C according to 2～3 DEG C/min, insulation 0.5～1.5h, cooling with stove afterwards, obtain sintering brick permeable to water.
The present invention is taking flyash, clay, magnesite powder as raw material, and repressed moulding, high-temperature calcination obtain sintering brick permeable to water, and the water-permeable brick making has good water permeability, and persistence is good, and compression strength is high, and wearability is good, the features such as weather resistance; In addition, this preparation method is simple to operate, with short production cycle, is beneficial to suitability for industrialized production, has important economy, society and ecological, environmental protective meaning.
Brief description of the drawings
Fig. 1 is the process chart of sintering brick permeable to water of the present invention;
Fig. 2 is the schematic diagram of the sintering brick permeable to water for preparing.
Detailed description of the invention
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention. The operation relating in embodiment is this area routine operation, and the material relating to is commercially available acquisition all.
Embodiment 1
A kind of sintering brick permeable to water, is prepared by following component: flyash 55kg, clay 30kg, magnesite powder 15kg, wherein, flyash is I level F class flyash, particle diameter is 80 orders, and the particle diameter of clay and magnesite powder is 80 orders, and magnesite powder is ground and obtained by the magnesite of proportion 2.9.
Embodiment 2
A kind of sintering brick permeable to water, is prepared by following component: flyash 60kg, clay 25kg, magnesite powder 15kg, wherein, flyash is II level F class flyash, particle diameter is 80 orders, and the particle diameter of clay and magnesite powder is 80 orders, and magnesite powder is ground and obtained by the magnesite of proportion 2.9.
Embodiment 3
A kind of sintering brick permeable to water, is prepared by following component: flyash 65kg, clay 20kg, magnesite powder 15kg, wherein, flyash is II level F class flyash, particle diameter is 80 orders, and the particle diameter of clay and magnesite powder is 80 orders, and magnesite powder is ground and obtained by the magnesite of proportion 3.1.
Embodiment 4
A kind of sintering brick permeable to water, is prepared by following component: flyash 65kg, and clay 30kg, magnesite powder 5kg, wherein, flyash is II level F class flyash, and particle diameter is 60 orders, and the particle diameter of clay is 60 orders, and the particle diameter of magnesite powder is 60 orders.
Embodiment 5
A kind of sintering brick permeable to water, is prepared by following component: flyash 55kg, and clay 20kg, magnesite powder 25kg, wherein, flyash is I level F class flyash, and particle diameter is 80 orders, and the particle diameter of clay is 100 orders, and the particle diameter of magnesite powder is 100 orders.
Embodiment 6
This embodiment provides the preparation method of sintering brick permeable to water described in embodiment 1, comprises the steps:
(1) raw material mixes: take flyash according to proportioning, and clay, magnesite powder, adds 15kg water to stir after mixing;
(2) moulding: compound is transferred in fluid pressure type brickmaking machine, controlled briquetting pressure 20Mpa in mould, repressed moulding obtains water-permeable brick base substrate;
(3) dry: by natural drying described water-permeable brick base substrate to water content 3%;
(4) sintering: dried water-permeable brick base substrate is sent into sintering in kiln, be warming up to 400 DEG C according to 5 DEG C/min, insulation 30min, is then warming up to 1050 DEG C according to 3 DEG C/min, insulation 1h is cooling with stove afterwards, to obtain final product.
Embodiment 7
This embodiment provides the preparation method of sintering brick permeable to water described in embodiment 2, and concrete steps are with embodiment 6, and its difference is: be warming up to 380 DEG C according to 5 DEG C/min, insulation 40min, is then warming up to 1150 DEG C according to 3 DEG C/min, insulation 1h, cooling with stove afterwards, to obtain final product.
Embodiment 8
This embodiment provides the preparation method of sintering brick permeable to water described in embodiment 3, and concrete steps are with embodiment 6, and its difference is only to be dried under 100 DEG C of conditions to be carried out.
Embodiment 9
This embodiment provides the preparation method of sintering brick permeable to water described in embodiment 4, and concrete steps are with embodiment 6, and its difference is: be warming up to 420 DEG C according to 5 DEG C/min, insulation 20min, is then warming up to 1100 DEG C according to 3 DEG C/min, insulation 1.5h, cooling with stove afterwards, to obtain final product.
Embodiment 10
This embodiment provides the preparation method of sintering brick permeable to water described in embodiment 5, and concrete steps are with embodiment 6.
Comparative example 1
A kind of sintering brick permeable to water, is prepared by following component: flyash 50kg, clay 20kg, magnesite powder 30kg, wherein, flyash is I level F class flyash, particle diameter is 80 orders, and the particle diameter of clay and magnesite powder is 80 orders, and magnesite powder is ground and obtained by the magnesite of proportion 2.9.
The preparation method of this sintering brick permeable to water is with embodiment 6.
Comparative example 2
A kind of sintering brick permeable to water, is prepared by following component: flyash 70kg, clay 20kg, magnesite powder 10kg, wherein, flyash is I level F class flyash, particle diameter is 80 orders, and the particle diameter of clay and magnesite powder is 80 orders, and magnesite powder is ground and obtained by the magnesite of proportion 2.9.
The preparation method of this sintering brick permeable to water is with embodiment 6.
Comparative example 3
A kind of sintering brick permeable to water, is prepared by following component: flyash 55kg, clay 30kg, magnesite powder 15kg, wherein, flyash is I level F class flyash, particle diameter is 80 orders, and the particle diameter of clay and magnesite powder is 80 orders, and magnesite powder is ground and obtained by the magnesite of proportion 2.9.
The preparation method of this sintering brick permeable to water is:
(1) raw material mixes: take flyash according to proportioning, and clay, magnesite powder, adds 20kg water to stir after mixing;
(2) moulding: compound is transferred in fluid pressure type brickmaking machine, controlled briquetting pressure 30Mpa in mould, repressed moulding obtains water-permeable brick base substrate;
(3) dry: by natural drying described water-permeable brick base substrate to water content 3%;
(4) sintering: dried water-permeable brick base substrate is sent into sintering in kiln, be warming up to 450 DEG C according to 5 DEG C/min, insulation 30min, is then warming up to 1250 DEG C according to 3 DEG C/min, insulation 1h is cooling with stove afterwards, to obtain final product.
Further illustrate the effect of the permeable fired brick of the present invention below by experimental data.
To embodiment 1～5, the water penetration of the sintering brick permeable to water of comparative example 1～3, density, water absorption rate, rupture strength is tested, and contrasts with the mark of " GBT25993-2010 permeable pavement brick and porous pavement plate ", and result is described in table 1 below:
Table 1 embodiment 1～5, the performance of comparative example 1～3 sintering brick permeable to water and GB contrast
Show by above-mentioned experimental result, when magnesite powder addition is larger, the rupture strength of sintering brick permeable to water is lower, but water absorption rate and water penetration are better, and supposition may be because the porosity that easily causes fired brick that adds of magnesite powder increases; The addition of magnesite powder account for whole raw material 15% time, along with the increase of flyash addition, can improve water absorption rate and the water imbibition of sintering brick permeable to water, simultaneously the intensity of fired brick is better.
Although, above use general explanation, detailed description of the invention and test, the present invention is described in detail, on basis of the present invention, can make some modifications or improvements it, and this will be apparent to those skilled in the art. Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (10)
1. a sintering brick permeable to water, is characterized in that, by the component system that comprises following weight portionStandby obtaining: 55～65 parts, flyash, 20～30 parts of clays, 5～25 parts of magnesite powders.
2. sintering brick permeable to water according to claim 1, is characterized in that: described sinteringWater-permeable brick, in 100 weight portions, is prepared by following component: 55～65 parts, flyash, and sticky20～30 parts, soil, 15 parts of magnesite powders.
3. sintering brick permeable to water according to claim 1, is characterized in that: described sintering is saturatingWater brick is prepared by the component of following weight portion:
55 parts, flyash, 30 parts of clays, 15 parts of magnesite powders;
Or, 60 parts, flyash, 25 parts of clays, 15 parts of magnesite powders;
Or, 65 parts, flyash, 20 parts of clays, 15 parts of magnesite powders.
4. according to the arbitrary described sintering brick permeable to water of claim 1～3, it is characterized in that: instituteStating flyash is F class flyash, preferably II level or I level F class flyash, further preferred powderThe particle diameter of coal ash is 60～100 orders.
5. sintering brick permeable to water according to claim 4, is characterized in that: described clayParticle diameter be 60～100 orders, be preferably 80 orders.
6. according to the arbitrary described sintering brick permeable to water of claim 1～5, it is characterized in that: instituteState magnesite powder and pulverize and obtain by the magnesite of proportion 2.9～3.1, preferred described magnesite powderParticle diameter is 60～100 orders, more preferably 80 orders.
7. the method for preparing the arbitrary described sintering brick permeable to water of claim 1～6, is characterized in that,Comprise the steps:
(1) raw material mixes: take flyash according to proportioning, and clay, magnesite powder, mixesAfter add water to stir, the water content that makes compound is 10%～15%;
(2) moulding: compound is compressing, obtain water-permeable brick base substrate;
(3) dry: by natural drying described water-permeable brick base substrate or 80～120 DEG C of conditionsUnder be dried to water content below 3%;
(4) sintering: the dried water-permeable brick base substrate of sintering, cooling with stove afterwards, obtain burningKnot water-permeable brick.
8. method according to claim 7, is characterized in that: in step (2), becomeThe pressure that type adopts is 15～25Mpa, is preferably 20Mpa.
9. method according to claim 7, is characterized in that: in step (4), and instituteState to be sintered to according to 4～5 DEG C/min and be warming up to 380～420 DEG C, insulation 20～40min, then according to2～3 DEG C/min is warming up to 1050～1150 DEG C, insulation 0.5～1.5h.
Preferably, described in be sintered to according to 5 DEG C/min and be warming up to 400 DEG C, insulation 30min, soAfter be warming up to 1050～1150 DEG C according to 3 DEG C/min, insulation 1h.
10. method according to claim 7, is characterized in that: comprise the steps:
(1) raw material mixes: take flyash according to proportioning, and clay, magnesite powder, mixesAfter add water to stir, the water content that makes compound is 10%～15%;
(2) moulding: the pressure with 15～25Mpa is compressing by compound, obtains water-permeable brickBase substrate;
(3) dry: by natural drying described water-permeable brick base substrate or 80～120 DEG C of conditionsUnder be dried to water content below 3%;
(4) sintering: by dried sintering brick permeable to water base substrate as in kiln, 4～5 DEG C/minBe warming up to 380～420 DEG C, insulation 20～40min, is then warming up to according to 2～3 DEG C/min1050～1150 DEG C, insulation 0.5～1.5h, cooling with stove afterwards, obtain sintering brick permeable to water.
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Cited By (7)
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| CN106045477A (en) * | 2016-06-01 | 2016-10-26 | 山东理工大学 | Preparation method of ferronickel residue sintered water-permeable bricks |
| CN106186874A (en) * | 2016-07-12 | 2016-12-07 | 绍兴职业技术学院 | A kind of ecological permeable bricks utilizing building waste to prepare and preparation method thereof |
| CN106426511A (en) * | 2016-09-07 | 2017-02-22 | 安徽金生金世电子科技有限公司 | Building wall brick and preparation method thereof |
| CN108530032A (en) * | 2018-05-11 | 2018-09-14 | 肥西县碧涛建材有限公司 | A kind of high-strength composite water-permeable brick prepared using common brick is discarded |
| CN108587434A (en) * | 2018-06-01 | 2018-09-28 | 江苏清陶能源科技有限公司 | A kind of coating and preparation method thereof improving stability and solid component is avoided to settle |
| CN111978096A (en) * | 2020-08-17 | 2020-11-24 | 浙江天地环保科技股份有限公司 | Fly ash-based ceramic water permeable brick sintered by two-step method and preparation method thereof |
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| CN106045477A (en) * | 2016-06-01 | 2016-10-26 | 山东理工大学 | Preparation method of ferronickel residue sintered water-permeable bricks |
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| CN113548870A (en) * | 2020-04-23 | 2021-10-26 | 萍乡学院 | Method for preparing water permeable brick by using fly ash |
| CN111978096A (en) * | 2020-08-17 | 2020-11-24 | 浙江天地环保科技股份有限公司 | Fly ash-based ceramic water permeable brick sintered by two-step method and preparation method thereof |
| CN111978096B (en) * | 2020-08-17 | 2022-05-31 | 浙江天地环保科技股份有限公司 | Fly ash-based ceramic water permeable brick sintered by two-step method and preparation method thereof |
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Application publication date: 20160525 |