CN106518149A - Method for sintering permeable brick with oil shale semi-coke and iron tailings - Google Patents
Method for sintering permeable brick with oil shale semi-coke and iron tailings Download PDFInfo
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- CN106518149A CN106518149A CN201611049012.9A CN201611049012A CN106518149A CN 106518149 A CN106518149 A CN 106518149A CN 201611049012 A CN201611049012 A CN 201611049012A CN 106518149 A CN106518149 A CN 106518149A
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- oil shale
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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
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/068—Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
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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
- C04B33/1305—Organic additives
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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
- C04B33/131—Inorganic additives
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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
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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
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
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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
- C04B33/32—Burning methods
- C04B33/34—Burning methods combined with glazing
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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)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a method for sintering a permeable brick with oil shale semi-coke and iron tailings. The permeable brick is prepared from 30wt%-40wt% of the oil shale semi-coke, 30wt%-50wt% of the iron tailings, 2wt%-5wt% of sodium carboxymethyl cellulose, 2wt%-4 wt% of industrial sodium carbonate and 15wt%-20wt% of water. The oil shale semi-coke mainly contains inorganic oxide and residual organic matter, a mineral phase contains feldspar and quartz, and the content of organic matter is 5% higher than the total mass; the granularity of the tailings is 10-40 meshes. During preparation, firstly, the oil shale semi-coke and the iron tailings are screened, a small quantity of an industrial sodium carbonate pore-forming agent and a sodium carboxymethyl cellulose binder are added, a green body is produced through semi-dry pressure forming, and heating sintering is performed in accordance with a certain heating process. According to the method, the feldspar phase in the industrial solid waste, namely, the oil shale semi-coke, is used, so that the sintering temperature of the permeable brick is reduced, and the cost is saved; the residual organic matter in the oil shale semi-coke is used as part of the pore forming agent, and the permeability performance of the permeable brick is improved; the permeable brick product can be widely applied to sidewalks, squares and other places.
Description
Technical field
The present invention relates to a kind of obtain big coefficient of permeability water-permeable brick manufacture material combination method, belong to construction material and give up
Abandon resource reutilization technical field.
Background technology
At present, there is nearly 80% urban ground by waterproof, air-locked concrete structure and concrete road surface or drip
Blue or green road surface is covered, and rainwater, snow-broth effectively can not permeate the ground, and causes underground water to reduce, and land subsidence, soil moisture content are low,
The growth of flowers, plants and trees is suppressed etc., destroys ecological environment.Water-permeable brick is that the road surface containing substantial amounts of intercommunicating pore spreads inside brick
The continuous hole existed in package material, permeable brick structure, can exclude surface gathered water in time in the rainy day, be easy to the security row of automobile
It is convenient with the walking of resident to sail.Rainwater is bled back to underground by the hole it can in addition contain be connected by which, what supplement increasingly lacked
Groundwater resources, improve the living environment of plant, recover the water circulation system of earth's surface.The preparation method of water-permeable brick generally has at present
Two kinds, high-temperature sintering process and the compressing method of normal temperature.During formed at normal temp, cementitious matter used mainly has cement-based material and resin base
Material, the shortcomings of cement base water-permeable brick often has frost resistance, wearability, poor durability；Resin base water-permeable brick is with macromolecule
Resin realizes the shaping of material for cementing material, there is the shortcomings of causing durability as resin is aging, wear no resistance.High temperature burns
Ceramic base water-permeable brick prepared by connection has the advantages that hardness is high, intensity is big, good endurance, its have the disadvantage needs addition in a large number into
Hole agent and high-temperature agglomerant, complex manufacturing, resource consumption are big.Chinese patent CN105601254A discloses one kind and adopts powder
Coal ash, clay, magnesite powder are sintering brick permeable to water prepared by main raw material(s).In recent years due to plough reduction, country with regard to
The use of clay takes protective policy, clay brick method consume substantial amounts of resource and the energy, and how to reduce sintering cost is to burn
Knot water-permeable brick needs the problem for solving.
Oil shale semi-coke be using oil shale extract shale oil after remaining industrial solid castoff, it is not front to its using compared with
Few, substantial amounts of accumulation land occupation, pollution environment, are the solid waste for urgently developing.Half glue primary chemical of oil shale
Composition is inorganic oxide and remnant organic matter, and mineral composition is mainly feldspar and quartz.Feldspar and quartz prepare ceramics
Essential mineral thing phase, the presence of feldspar can reduce firing temperature, advantageously reduce energy consumption when burning till.Organic matter was burning till
On the one hand partial heat energy can be provided by burning in journey, reduces energy consumption, the burning of another aspect organic matter is removed can be with
The through hole of forming part connection in product is made, the water permeability of water-permeable brick is improved.Therefore, it is saturating sintering to be prepared using oil shale semi-coke
Water brick can be both that the water permeability of water-permeable brick plays a role with reducing energy consumption, or realize the efficient profit of oil shale semi-coke
With exploitation new way.
Iron tailings is one of larger solid waste of domestic discharge capacity.Substantial amounts of iron tailings is stacked and brings potential safety hazard
And the wasting of resources.But up to the present, large iron tailings of dissolving remains a great problem of society.The primary chemical group of iron tailings
It is SiO to divide2、Al2O3And Fe2O3, main thing is mutually quartz, bloodstone etc., and grain graininess is 4-100 mesh, can be used as sintering
The aggregate of material is utilized, and realizes turning waste into wealth.
Sintering brick permeable to water of the present invention is with oil shale semi-coke as high-temperature agglomerant and pore former, with iron tailings as aggregate, additional
A small amount of pore creating material and adhesive, burn till prepared water-permeable brick by compressing, high temperature, and the present invention combines two kinds of solid waste spies
Point, carries out efficient combination, has widened the application new way of iron tailings and two kinds of solid waste of oil shale semi-coke.It is prepared by the present invention
With sintering brick permeable to water good water permeability, compression strength is high, and ageing-resistant performance is good, the low feature of energy consumption, not only can be to solve
Environmental problem and problem of resource waste that oil shale semi-coke and mine tailing bring, and the permeable of excellent performance can be provided for market
Brick, with very big Social benefit and economic benefit.
The content of the invention
The present invention discloses a kind of method that utilization oil shale semi-coke and iron tailings prepare sintering brick permeable to water, sintering brick permeable to water by
The raw material composition of following mass percent：
Oil shale semi-coke 30-40wt%, iron tailings 30-50wt%, sodium carboxymethylcellulose 2-5wt%, industrial sodium carbonate
2-4wt%, water 15-20wt%.
Described oil shale semi-coke is oil shale raw ore remaining solid waste Jing after destructive distillation, mainly by inorganic oxide
Constitute with remnant organic matter.Mine tailing is that iron ore extracts remaining solid waste after valuable element.
Above-mentioned sintering brick permeable to water preparation method and technology step is as follows：
(1) screening of the grinding and iron tailings of oil shale semi-coke：Oil shale semi-coke is extremely passed through into 200 using ball mill grinding
Mesh square hole screen is standby；Iron tailings is passed through into 10 mesh square hole screens and 40 mesh square hole screens, the iron tailings for taking 10-40 mesh fineness is standby；
(2) preparation of permeable adobe：A certain amount of oil shale semi-coke, iron tailings, industrial sodium carbonate, carboxymethyl are weighed by quality
Cellulose is received carries out mixing and stirring, then weighs a certain amount of water and pour in solid mixture and stir, and adopts on forcing press
It is pressed with the pressure of 20MPa, compressing rear natural drying；
(3) water-permeable brick burns till：Dried permeable adobe is burnt till under 1000-1100 DEG C of high temperature, work is burnt till
It is 200 DEG C/h to 600 DEG C that skill is room temperature, and 600-800 DEG C is 100 DEG C/h, and 800- target temperatures are 300 DEG C/h, in target temperature
Lower insulation 1-3h, insulation terminate rear natural cooling and can be prepared by product of the present invention.
The invention has the beneficial effects as follows：Main raw material(s) as water-permeable brick is combined using oil shale semi-coke with iron tailings,
Spectra present in oil shale semi-coke and remnant organic matter component can be made full use of, reduces burning till temperature in sintering process
Degree, there is provided energy, reducing energy consumption, and realize the formation of intercommunicating pore in the product, it is ensured that and water permeability, reduce production cost.
With the development of urban construction, the application of water-permeable brick is more and more extensive, is prepared using oil shale semi-coke and iron tailings
Water-permeable brick, opens frontier to large the dissolving of two kinds of solid waste, significantly improves the resource of both solid waste
Change utilization rate.
Specific embodiment
Embodiment 1
(1) screening of the grinding and iron tailings of oil shale semi-coke：Weigh 100Kg oil shale semi-cokes and adopt ball mill grinding extremely
It is standby by 200 mesh square hole screens；Iron tailings is weighed by 10 mesh square hole screens and 40 mesh square hole screens, the iron tail of 10-40 mesh fineness is taken
Ore deposit is standby.
(2) preparation of permeable adobe：Dispensing is carried out by gross mass 10Kg, oil shale semi-coke 30wt% (3Kg), iron tail is weighed
Ore deposit 50wt% (5Kg), sodium carboxymethylcellulose 2wt% (0.2Kg), industrial sodium carbonate 3wt% (0.3Kg) carry out mixing
It is even, then weigh 15wt% (1.5Kg) water and pour in solid mixture and stir, the pressure using 20MPa on forcing press enters
Row is compressing, compressing rear natural drying.
(3) water-permeable brick burns till：By dried permeable adobe by room temperature to 200 DEG C/h when 600 DEG C, when 600-800 DEG C
100 DEG C/h, 300 DEG C/h when 800-1000 DEG C, the calcining system that 2h is incubated at 1000 DEG C are burnt till, and insulation is natural after terminating
Cooling can be prepared by product of the present invention.
(4) performance test is carried out to product of the present invention, after testing, water-permeable brick compression strength 24.6MPa, rupture strength
5.4MPa, tensile splitting strength 4.9MPa, coefficient of permeability 3.6 × 10-2Cm/s, frost resistance mass loss rate 0.8%, loss of strength
Rate 2.0%.Comply fully with GB/T25993-2010《Permeable pavement brick and porous pavement plate》Standard is required.
Embodiment 2
(1) screening of the grinding and iron tailings of oil shale semi-coke：Weigh 100Kg oil shale semi-cokes and adopt ball mill grinding extremely
It is standby by 200 mesh sieves；Iron tailings is weighed by 10 mesh sieves and 40 mesh sieves, the iron tailings for taking 10-40 mesh fineness is standby.
(2) preparation of permeable adobe：Dispensing is carried out by gross mass 10Kg, oil shale semi-coke 35wt% (3.5Kg), iron is weighed
Mine tailing 40wt% (4.5Kg), sodium carboxymethylcellulose 4wt% (0.4Kg), industrial sodium carbonate 3wt% (0.3Kg) carry out mixing and stir
Mix uniform, then weigh 18wt% (1.8Kg) water and pour in solid mixture and stir, the pressure of 20MPa is adopted on forcing press
Power is pressed, compressing rear natural drying.
(3) water-permeable brick burns till：By dried permeable adobe by room temperature to 200 DEG C/h when 600 DEG C, when 600-800 DEG C
100 DEG C/h, 300 DEG C/h when 800-1050 DEG C, the calcining system that 4h is incubated at 1050 DEG C are burnt till, and insulation is natural after terminating
Cooling can be prepared by product of the present invention.
(4) performance test is carried out to product of the present invention, after testing, water-permeable brick compression strength 29.6MPa, rupture strength
6.8MPa, tensile splitting strength 5.4MPa, coefficient of permeability 2.8 × 10-2Cm/s, frost resistance mass loss rate 0.4%, loss of strength
Rate 1.4%.Comply fully with GB/T25993-2010《Permeable pavement brick and porous pavement plate》Standard is required.
Embodiment 3
(1) screening of the grinding and iron tailings of oil shale semi-coke：Weigh 100Kg oil shale semi-cokes and adopt ball mill grinding extremely
It is standby by 200 mesh square hole screens；Iron tailings is weighed by 10 mesh square hole screens and 40 mesh square hole screens, the iron tail of 10-40 mesh fineness is taken
Ore deposit is standby.
(2) preparation of permeable adobe：Dispensing is carried out by gross mass 10Kg, oil shale semi-coke 40wt% (4Kg), iron tail is weighed
Ore deposit 30wt% (3Kg), sodium carboxymethylcellulose 5wt% (0.5Kg), industrial sodium carbonate 4wt% (0.4Kg) carry out mixing
It is even, then weigh 21wt% (2.1Kg) water and pour in solid mixture and stir, the pressure using 20MPa on forcing press enters
Row is compressing, compressing rear natural drying.
(3) water-permeable brick burns till：By dried permeable adobe by room temperature to 200 DEG C/h when 600 DEG C, when 600-800 DEG C
100 DEG C/h, 300 DEG C/h when 800-1100 DEG C, the calcining system that 4h is incubated at 1100 DEG C are burnt till, and insulation is natural after terminating
Cooling can be prepared by product of the present invention.
(4) performance test is carried out to product of the present invention, after testing, water-permeable brick compression strength 32.6MPa, rupture strength
7.8MPa, tensile splitting strength 5.9MPa, coefficient of permeability 2.2 × 10-2Cm/s, frost resistance mass loss rate 0.2%, loss of strength
Rate 0.4%.Comply fully with GB/T25993-2010《Permeable pavement brick and porous pavement plate》Standard is required.
Claims (4)
1. the method for sintering brick permeable to water prepared by a kind of oil shale semi-coke and iron tailings, it is characterised in that：Water-permeable brick is by oil shale
The raw material Jing batch mixings such as semicoke, iron tailings, industrial sodium carbonate, sodium carboxymethylcellulose, water, compacting, firing process are made.
2. the sintering brick permeable to water that according to claim 1 prepared by oil shale semi-coke and iron tailings, it is characterised in that：Oil shale half
Jiao is made up of inorganic oxide and remnant organic matter, and inorganic oxide is mainly by SiO2、Al2O3、Na2O、K2O and Fe2O3Etc. group
Into wherein SiO2With Al2O3Quality sum is more than 70%, Na2O and K2O quality sums are more than 3%；Host inorganic mineral facies are by growing
Stone and quartz composition, remnant organic matter content more than gross mass 5%.
3. the sintering brick permeable to water that according to claim 1 prepared by oil shale semi-coke and iron tailings, it is characterised in that：The iron tail
Ore deposit essential mineral consists of silicate, aluminosilicate, carbonate mineral and trace element, and chemical composition is with SiO2、Al2O3Based on,
Wherein SiO2Content is 25%-70%, Al2O3Content is 10%-25%, and granularity is 10-40 mesh.
4. the sintering brick permeable to water that according to claim 1 prepared by oil shale semi-coke and iron tailings, it is characterised in that：Permeable adobe
Briquetting pressure is 20MPa, and burning till is carried out under 1000-1100 DEG C of high temperature, and it is 200 DEG C/h to 600 DEG C that firing process is room temperature,
600-800 DEG C is 100 DEG C/h, and 800- target temperatures are 300 DEG C/h, under target temperature are incubated 1-3h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611049012.9A CN106518149B (en) | 2016-11-24 | 2016-11-24 | A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick |
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|---|---|---|---|
| CN201611049012.9A CN106518149B (en) | 2016-11-24 | 2016-11-24 | A kind of method of oil shale semi-coke and iron tailing sintered water-permeable brick |
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| CN106518149B CN106518149B (en) | 2019-04-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879723A (en) * | 2017-09-30 | 2018-04-06 | 望江县中山新型建材有限公司 | A kind of preparation method of the good fired brick of light thermal-insulation mechanical property |
| CN113087492A (en) * | 2021-03-31 | 2021-07-09 | 中冶华天工程技术有限公司 | Sintered water permeable brick prepared from iron tailings and preparation method thereof |
| CN113929378A (en) * | 2021-04-30 | 2022-01-14 | 甘肃路桥建设集团有限公司 | Oil shale semicoke and application of modified material thereof |
| CN114230223A (en) * | 2021-12-17 | 2022-03-25 | 东北大学 | Multi-solid-waste admixture, preparation method thereof and cement mortar |
| CN114671662A (en) * | 2022-04-14 | 2022-06-28 | 甘肃路桥建设集团有限公司 | Oil shale semicoke-based soil body reinforcing material, preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765961A (en) * | 2012-06-30 | 2012-11-07 | 安徽中龙建材科技有限公司 | Method capable of utilizing shales to produce aerated hollow brick |
| CN102924058A (en) * | 2012-11-22 | 2013-02-13 | 盱眙县东强新型建材厂 | Perforated brick prepared by sintering attapulgite and shale |
| CN103204698A (en) * | 2013-04-16 | 2013-07-17 | 北京科技大学 | Method for preparing environment-friendly water permeable bricks by using iron tailings |
-
2016
- 2016-11-24 CN CN201611049012.9A patent/CN106518149B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765961A (en) * | 2012-06-30 | 2012-11-07 | 安徽中龙建材科技有限公司 | Method capable of utilizing shales to produce aerated hollow brick |
| CN102924058A (en) * | 2012-11-22 | 2013-02-13 | 盱眙县东强新型建材厂 | Perforated brick prepared by sintering attapulgite and shale |
| CN103204698A (en) * | 2013-04-16 | 2013-07-17 | 北京科技大学 | Method for preparing environment-friendly water permeable bricks by using iron tailings |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879723A (en) * | 2017-09-30 | 2018-04-06 | 望江县中山新型建材有限公司 | A kind of preparation method of the good fired brick of light thermal-insulation mechanical property |
| CN113087492A (en) * | 2021-03-31 | 2021-07-09 | 中冶华天工程技术有限公司 | Sintered water permeable brick prepared from iron tailings and preparation method thereof |
| CN113929378A (en) * | 2021-04-30 | 2022-01-14 | 甘肃路桥建设集团有限公司 | Oil shale semicoke and application of modified material thereof |
| CN114230223A (en) * | 2021-12-17 | 2022-03-25 | 东北大学 | Multi-solid-waste admixture, preparation method thereof and cement mortar |
| CN114230223B (en) * | 2021-12-17 | 2022-08-26 | 东北大学 | Multi-solid-waste admixture, preparation method thereof and cement mortar |
| CN114671662A (en) * | 2022-04-14 | 2022-06-28 | 甘肃路桥建设集团有限公司 | Oil shale semicoke-based soil body reinforcing material, preparation method and application thereof |
| CN114671662B (en) * | 2022-04-14 | 2023-03-28 | 甘肃路桥建设集团有限公司 | Oil shale semicoke-based soil body reinforcing material, preparation method and application thereof |
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| CN106518149B (en) | 2019-04-23 |
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