CN102249584B - Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge - Google Patents
Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge Download PDFInfo
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- CN102249584B CN102249584B CN2011101273962A CN201110127396A CN102249584B CN 102249584 B CN102249584 B CN 102249584B CN 2011101273962 A CN2011101273962 A CN 2011101273962A CN 201110127396 A CN201110127396 A CN 201110127396A CN 102249584 B CN102249584 B CN 102249584B
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- particle
- municipal sludge
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- 239000010802 sludge Substances 0.000 title claims abstract description 232
- 238000004043 dyeing Methods 0.000 title claims abstract description 121
- 238000007639 printing Methods 0.000 title claims abstract description 120
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 239000010881 fly ash Substances 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims description 98
- 239000000919 ceramic Substances 0.000 claims description 51
- 239000000203 mixture Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000013467 fragmentation Methods 0.000 claims description 7
- 238000006062 fragmentation reaction Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 2
- 235000019738 Limestone Nutrition 0.000 abstract 1
- 239000006028 limestone Substances 0.000 abstract 1
- 239000004927 clay Substances 0.000 description 10
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011464 hollow brick Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention belongs to the technical field of sludge recycling/resource utilization, particularly relates to a lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge. The lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge provided by the invention is prepared from the following raw materials in percentage by weight: 30-50% of granular sludge, 30-50% of printing/dyeing granular sludge, 10-15% of fly ash, 2-6% of limestone, and 1-4% of iron powder; the lightweight ceramicite prepared according to the formula above has the advantages of light weight, good mechanical performance, environmentally-friendly and easily obtainable raw materials and low production cost; and the manufacturing method has the advantages of simplicity and high production efficiency.
Description
Technical field
The invention belongs to mud and reclaim the application technology as the second resource field, relate in particular to a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make.
Background technology
In the prior art, produce light ceramic and generally adopt clay, flyash etc. as main raw material, be aided with again other additive, fusing assistant, make material composition meet the requirement of producing haydite, then at high temperature burn swollenly, make intensity height, unit weight is light, chemical stability is good ceramic product.But use in a large number clay to bring destruction to the eubiosis and environment protection; and flyash is owing to obtain using more and more widely at cement industry; price is also climbed to a higher point gradually; so utilize other solid waste to replace clay, flyash baking ceramsite as main raw material, have good economic benefit and environmental benefit.
In recent years, utilize municipal sludge many as the research and comparison of raw material part instead of clay baking ceramsite, the research of printing and dyeing sludge instead of clay baking ceramsite is also arranged, printing and dyeing sludge is in a large amount of generations in the area that weaving, dyeing are concentrated, equally become the main solid waste of contaminate environment with municipal sludge, but at present without the light ceramic of finding that municipal sludge and printing and dyeing sludge compatibility are made.
As long as the proportioning of the compositions such as silicon, aluminium, iron adds fusing assistant in the raw material in suitable scope, can be fired into qualified light ceramic on the principle.Contain a large amount of organic compositions in municipal sludge and the printing and dyeing sludge, organic composition is helpful to successful roasting haydite, overflows in pellet and produces the disconnected space of hollow thereby can be conducive to produce gas; After the blending of suitable ratio, the inorganic components in municipal sludge and the printing and dyeing sludge is close with the inorganic components in the clay, so municipal sludge and printing and dyeing sludge are the very good materials of production light ceramic.
Therefore municipal sludge and printing and dyeing sludge are carried out suitable proportioning and be used as the main raw material of baking ceramsite, meet innoxious, minimizing and the resource utilization principle of China's solid waste disposal, have significant economic benefit and social benefit.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, and a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make is provided, its light weight, mechanical property is good, the raw material environmental protection, is easy to get, and production cost is low; Manufacture method is simple, production efficiency is high.
The present invention is achieved through technology.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is comprised of the raw material of following weight percent: municipal sludge particle 30% ~ 50%, printing and dyeing sludge particle 30% ~ 50%, flyash 10% ~ 15%, Wingdale 2% ~ 6%, iron powder 1% ~ 4%.
Preferably, it is comprised of the raw material of following weight percent: municipal sludge particle 30% ~ 40%, printing and dyeing sludge particle 40% ~ 50%, flyash 12% ~ 15%, Wingdale 3% ~ 6%, iron powder 1% ~ 4%.
Preferably, it is comprised of the raw material of following weight percent: municipal sludge particle 38%, printing and dyeing sludge particle 40%, flyash 14%, Wingdale 6%, iron powder 2%.
Preferably, it is comprised of the raw material of following weight percent: municipal sludge particle 40% ~ 46%, printing and dyeing sludge particle 40% ~ 45%, flyash 10% ~ 13%, Wingdale 2% ~ 4%, iron powder 1% ~ 2%.
Preferably, it is comprised of the raw material of following weight percent: municipal sludge particle 41%, printing and dyeing sludge particle 40%, flyash 13%, Wingdale 4%, iron powder 2%.
Preferably, it is comprised of the raw material of following weight percent: municipal sludge particle 46% ~ 50%, printing and dyeing sludge particle 30% ~ 40%, flyash 10% ~ 15%, Wingdale 2% ~ 3%, iron powder 1% ~ 2%.
Preferably, it is comprised of the raw material of following weight percent: municipal sludge particle 50%, printing and dyeing sludge particle 33%, flyash 12%, Wingdale 3%, iron powder 2%.
Wherein, by weight percentage, the chemical composition content of municipal sludge particle is: SiO
210%～50%, Al
2O
35%～15%, Fe
2O
31% ~ 8%, CaO 1%～3%, and MgO 0.7% ~ 2%, K
2O 0.7% ~ 3%, Na
2O 0.8% ~ 3%, and loss on ignition is 25%～60%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
25%～20%, Al
2O
37%～17%, Fe
2O
32% ~ 13%, CaO 1.2%～3.2%, and MgO 0.5% ~ 1.8%, K
2O 0.5% ~ 2.8%, Na
2O 1% ~ 3%, and loss on ignition is 28%～62%.
Preferably, by weight percentage, the chemical composition content of municipal sludge particle is: SiO
210%～30%, Al
2O
35%～10%, Fe
2O
31% ~ 4%, CaO 1%～3%, and MgO 0.7% ~ 1.5%, K
2O 0.7% ~ 2%, Na
2O 0.8% ~ 1.5%, and loss on ignition is 25%～60%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
25%～13%, Al
2O
37%～14%, Fe
2O
32% ~ 8%, CaO 1.2%～2.2%, and MgO 0.5% ~ 1.0%, K
2O 0.5% ~ 1.5%, Na
2O 1% ~ 2%, and loss on ignition is 28%～62%.
Preferably, by weight percentage, the chemical composition content of municipal sludge particle is: SiO
230%～50%, Al
2O
310%～15%, Fe
2O
34% ~ 8%, CaO 1%～3%, and MgO 1.5% ~ 2%, K
2O 2% ~ 3%, Na
2O 1.5% ~ 3%, and loss on ignition is 25%～60%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
213%～20%, Al
2O
314%～17%, Fe
2O
38% ~ 13%, CaO 2.2%～3.2%, and MgO 1.0% ~ 1.8%, K
2O 1.5% ~ 2.8%, Na
2O 2% ~ 3%, and loss on ignition is 28%～62%.
The raw material loss on ignition characterizes the gaseous product of heating raw materials decomposition (such as H
2O, CO
2Deng) and what of organic content, thereby can judge whether raw material needs in advance it to be calcined in use, make the raw material volume stability.Loss on ignition (%) S=(G1-G2)/G1*100, G1 is quality before burning in above-mentioned formula, G2 is quality after burning.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is made by following preparation process:
(a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge, printing and dyeing sludge all drop to 40%～60%, make municipal sludge mud cake and printing and dyeing sludge mud cake;
(b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle;
(c) by mass percentage, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture;
(d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain; The principle of wet method plasticity extruder grain moulding is: add water with the powder particle surface wettability, make powder adhered to one another.The dry solid particulate that forms then sieves;
(e) the material grain that step (d) is made, first under 300 ℃～500 ℃ temperature, dry 10 minutes～20 minutes; Then under 1050 ℃～1250 ℃ conditions, roasting 20 minutes～30 minutes; At last cooling obtains light ceramic.
Wherein, the particle diameter of the material grain that step (d) makes is 5mm ~ 10mm, and the particle diameter of the light ceramic that step (e) makes is 10mm ~ 30mm.
Beneficial effect of the present invention is:
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make of the present invention, it is comprised of the raw material of following weight percent: municipal sludge particle 30% ~ 50%, printing and dyeing sludge particle 30% ~ 50%, flyash 10% ~ 15%, Wingdale 2% ~ 6%, iron powder 1% ~ 4%.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make of the present invention has the following advantages:
(1) take municipal sludge particle and printing and dyeing sludge particle as main raw material, the raw material environmental protection, be easy to get, do not use clay fully, do not damage the soil, do not destroy ecotope, be conducive to protection of the environment; Add flyash, Wingdale and iron powder in the raw material, make the light ceramic intensity height, the mechanical property that make good, and reduced unit weight, light weight; Simultaneously, also greatly reduce the usage quantity of flyash, it is low to have reduced production cost.
(2) all contain chemical ingredients in the clay in municipal sludge particle and the printing and dyeing sludge particle, such as Si, Al, Fe, Ca, P, Mg, K, Na etc., the proportional range of each composition is different from corresponding composition in the clay, the present invention is by admixing municipal sludge particle and printing and dyeing sludge particle in proportion, composition behind the compatibility is near clay, the chemical ingredients of municipal sludge particle and printing and dyeing sludge particle is by synergy, be conducive to the production of light ceramic, the light ceramic intensity that makes is high, mechanical property is good, light weight.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make of the present invention, it is made by following preparation process:
(a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge and printing and dyeing sludge all drop to 40%～60%, make municipal sludge mud cake and printing and dyeing sludge mud cake;
(b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle;
(c) by mass percentage, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture;
(d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain;
(e) the material grain that step (d) is made, first under 300 ℃～500 ℃ temperature, dry 10 minutes～20 minutes; Then under 1050 ℃～1250 ℃ conditions, roasting 20 minutes～30 minutes; At last cooling obtains light ceramic.
Municipal sludge particle and printing and dyeing sludge particulate material that the present invention adopts, water ratio is higher when generally dispatching from the factory, and reaches 80%, needs to carry out filter-press dehydration before batching again, makes water ratio drop to 40%～60%, guarantees to be able to granulating and forming.After the press filtration, through the batching mixing, general water ratio is still 20%～40%, and this moment is by the moulding of wet method plasticity extruder grain, do not need before granulating and forming raw material stoving has been saved the energy, and manufacture method is simple, improved production efficiency.The composition that the meetings such as the organic matter that contains in municipal sludge particle and the printing and dyeing sludge particle, pathogenic bacteria, heavy metal damage environment; through roasting; be cured in the light ceramic structure, avoided in environment, spreading, the light ceramic environmental protection that makes, pollution-free.
The light ceramic that makes can be made into the various material of construction such as all size pottery sand, figuline building blocks, haydite hollow brick, haydite solid brick, heat insulating refractory brick, light wall material, roofing heat insulating bricks, refractory brick, dry-mixed mortar, and to be applied to building structure, retaining wall, bridge, highway and culvert first-class, applied range.
Embodiment
The present invention is further illustrated with specific embodiment for the below, but the present invention is not subjected to the restriction of following embodiment.
Embodiment 1.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is comprised of the raw material of following weight percent: municipal sludge particle 38%, printing and dyeing sludge particle 40%, flyash 14%, Wingdale 6%, iron powder 2%.
By weight percentage, the chemical composition content of municipal sludge particle is: SiO
210.26%, Al
2O
315%, Fe
2O
31.37%, CaO 3%, and MgO 0.78%, K
2O 0.86%, Na
2O 1.55%, and loss on ignition is 55%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
220%, Al
2O
37.85%, Fe
2O
310.11%, CaO 1.28%, and MgO 0.52%, K
2O 2.8%, Na
2O 2.33%, and loss on ignition is 45%.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is made by following preparation process:
(a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge and printing and dyeing sludge all drop to 40%, make municipal sludge mud cake and printing and dyeing sludge mud cake;
(b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle;
(c) by above-mentioned mass percent, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture;
(d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain;
(e) the material grain that step (d) is made, first under 350 ℃ of temperature, dry 20 minutes; Then under 1050 ℃ of conditions, roasting 30 minutes; At last cooling obtains light ceramic.
The municipal sludge of present embodiment is taken from Guangzhou sewage work, and printing and dyeing sludge is taken from Foshan City's printing and dyeing enterprise.
Embodiment 2.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is comprised of the raw material of following weight percent: municipal sludge particle 41%, printing and dyeing sludge particle 40%, flyash 13%, Wingdale 4%, iron powder 2%.
By weight percentage, the chemical composition content of municipal sludge particle is: SiO
248.24%, Al
2O
37.83%, Fe
2O
36.65%, CaO 1.02%, and MgO 1.83%, K
2O 2.55%, Na
2O 0.8%, and loss on ignition is 25%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
25.37%, Al
2O
315.67%, Fe
2O
35.38%, CaO 3.08%, and MgO 1.02%, K
2O 2.12%, Na
2O 1.83%, and loss on ignition is 46%.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is made by following preparation process:
(a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge and printing and dyeing sludge all drop to 60%, make municipal sludge mud cake and printing and dyeing sludge mud cake;
(b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle;
(c) by above-mentioned mass percent, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture;
(d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain;
(e) the material grain that step (d) is made, first under 450 ℃ of temperature, dry 15 minutes; Then under 1250 ℃ of conditions, roasting 20 minutes; At last cooling obtains light ceramic.
The municipal sludge of present embodiment is taken from Guangzhou sewage work, and printing and dyeing sludge is taken from Foshan City's printing and dyeing enterprise.
Embodiment 3.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is comprised of the raw material of following weight percent: municipal sludge particle 50%, printing and dyeing sludge particle 33%, flyash 12%, Wingdale 3%, iron powder 2%.
By weight percentage, the chemical composition content of municipal sludge particle is: SiO
230.35%, Al
2O
311.58%, Fe
2O
34.44%, CaO 1.82%, and MgO 0.95%, K
2O 2.54%, Na
2O 1.47%, and loss on ignition is 40%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
27.34%, Al
2O
312.31%, Fe
2O
32.38%, CaO 1.38%, and MgO 0.67%, K
2O 0.52%, Na
2O 1.15%, and loss on ignition is 62%.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is made by following preparation process:
(a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge and printing and dyeing sludge all drop to 50%, make municipal sludge mud cake and printing and dyeing sludge mud cake;
(b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle;
(c) by above-mentioned mass percent, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture;
(d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain;
(e) the material grain that step (d) is made, first under 400 ℃ of temperature, dry 13 minutes; Then under 1150 ℃ of conditions, roasting 25 minutes; At last cooling obtains light ceramic.
The municipal sludge of present embodiment is taken from Guangzhou sewage work, and printing and dyeing sludge is taken from Foshan City's printing and dyeing enterprise.
Embodiment 4.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is comprised of the raw material of following weight percent: municipal sludge particle 31%, printing and dyeing sludge particle 45%, flyash 15%, Wingdale 6%, iron powder 3%.
By weight percentage, the chemical composition content of municipal sludge particle is: SiO
230.35%, Al
2O
311.58%, Fe
2O
34.44%, CaO 1.82%, and MgO 0.95%, K
2O 2.54%, Na
2O1.47%, loss on ignition is 35%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO
27.34%, Al
2O
312.31%, Fe
2O
32.38%, CaO 1.38%, and MgO 0.67%, K
2O 0.52%, Na
2O 1.15%, and loss on ignition is 62%.
A kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is made by following preparation process:
(a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge and printing and dyeing sludge all drop to 40%, make municipal sludge mud cake and printing and dyeing sludge mud cake;
(b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle;
(c) by above-mentioned mass percent, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture;
(d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain;
(e) the material grain that step (d) is made, first under 500 ℃ of temperature, dry 10 minutes; Then under 1200 ℃ of conditions, roasting 23 minutes; At last cooling obtains light ceramic.
The municipal sludge of present embodiment is taken from Guangzhou sewage work, and printing and dyeing sludge is taken from Foshan City's printing and dyeing enterprise.
The light ceramic product that the below burns out embodiment 1 ~ embodiment 4 carries out the building materials mechanical property and the heavy metal fixed characteristic carries out determination and analysis, such as table 1 and table 2.
Table 1 building materials mechanics performance determining result
| Sequence number | Project name | The light ceramic product | (GB/T17431.2-1998) 800 grades of haydite standards |
| 1 | The grain type | Broken stone type | ? |
| 2 | Tap density (kg/m 3） | 723-755 | 800 ranks |
| 3 | Cylindrical compress strength (MPa) | 6.13-6.65 | >6.0 |
| 4 | Strength mark | 40 | ≧35 |
| 5 | Water-intake rate (%) | 1.6-3.1 | ≦8.0 |
| 6 | Silt content (%) | 1.12-0.85 | ≦3.0 |
| 7 | Loss on ignition (%) | 2.6-3.3 | ≦5.0 |
| 8 | Sulfide and sulphate content (are pressed SO 3Meter, %) | 0.36-0.68 | ≦1.0 |
| 9 | Grain composition | Qualified | Slightly |
Measurement result shows that the light ceramic product that embodiment 1 ~ embodiment 4 makes reaches (GB/T17431.2-1998) 800 grades of haydite standards.
The heavy metal fixed characteristic measurement result of table 2 light ceramic product leach liquor
Measurement result shows, heavy metal concentration in the light ceramic product leach liquor that embodiment 1 ~ embodiment 4 makes is far below " GB5085.3-1996 Hazardous wastes judging standard " and " GB3828-2002 water environment quality standard ", the light ceramic product has the solidification effect to heavy metal, can not cause secondary pollution to environment, realize municipal sludge and printing and dyeing
Innoxious and the recycling of mud.
The above embodiment, it is preferred embodiments of the present invention, be not to limit the scope of the present invention, so all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, all should comprise in the patent claim of the present invention.
Claims (9)
1. light ceramic that utilizes municipal sludge and printing and dyeing sludge to make, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 30% ~ 50%, printing and dyeing sludge particle 30% ~ 50%, flyash 10% ~ 15%, Wingdale 2% ~ 6%, iron powder 1% ~ 4%;
It is made by following preparation process: (a) municipal sludge and printing and dyeing sludge are carried out respectively press filtration, make the water ratio of municipal sludge, printing and dyeing sludge all drop to 40%～60%, make municipal sludge mud cake and printing and dyeing sludge mud cake; (b) the municipal sludge mud cake and the printing and dyeing sludge mud cake that step (a) are made carry out respectively fragmentation, stir process, make municipal sludge particle and printing and dyeing sludge particle; (c) by mass percentage, municipal sludge particle, printing and dyeing sludge particle after step (b) processed are prepared burden with flyash, Wingdale, iron powder, mixing, make mixture; (d) mixture that step (c) is made carries out the moulding of wet method plasticity extruder grain, makes the material grain; (e) the material grain that step (d) is made, first under 300 ℃～500 ℃ temperature, dry 10 minutes～20 minutes; Then under 1050 ℃～1250 ℃ conditions, roasting 20 minutes～30 minutes; At last cooling obtains light ceramic.
2. described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 1, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 30% ~ 40%, printing and dyeing sludge particle 40% ~ 50%, flyash 12% ~ 15%, Wingdale 3% ~ 6%, iron powder 1% ~ 4%.
3. described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 2, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 38%, printing and dyeing sludge particle 40%, flyash 14%, Wingdale 6%, iron powder 2%.
4. described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 1, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 40% ~ 46%, printing and dyeing sludge particle 40% ~ 45%, flyash 10% ~ 13%, Wingdale 2% ~ 4%, iron powder 1% ~ 2%.
5. described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 4, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 41%, printing and dyeing sludge particle 40%, flyash 13%, Wingdale 4%, iron powder 2%.
6. described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 1, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 46% ~ 50%, printing and dyeing sludge particle 30% ~ 40%, flyash 10% ~ 15%, Wingdale 2% ~ 3%, iron powder 1% ~ 2%.
7. described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 6, it is characterized in that: it is comprised of the raw material of following weight percent: municipal sludge particle 50%, printing and dyeing sludge particle 33%, flyash 12%, Wingdale 3%, iron powder 2%.
8. the described a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make of any one according to claim 1 ~ 7, it is characterized in that: by weight percentage, the chemical composition content of municipal sludge particle is: SiO
210%～50%, Al
2O
35%～15%, Fe
2O
31% ~ 8%, CaO 1%～3%, and MgO 0.7% ~ 2%, K
2O 0.7% ~ 3%, Na
2O 0.8% ~ 3%, and loss on ignition is 25%～60%; By weight percentage, the chemical composition content of printing and dyeing sludge particle is: SiO2 5%～20%, Al
2O
37%～17%, Fe
2O
32% ~ 13%, CaO 1.2%～3.2%, and MgO 0.5% ~ 1.8%, K
2O 0.5% ~ 2.8%, Na
2O 1% ~ 3%, and loss on ignition is 28%～62%.
9. a kind of light ceramic that utilizes municipal sludge and printing and dyeing sludge to make according to claim 1, it is characterized in that: the particle diameter of the material grain that step (d) makes is 5mm ~ 10mm, the particle diameter of the light ceramic that step (e) makes is 10mm ~ 30mm.
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| CN102515706B (en) * | 2011-12-27 | 2013-08-07 | 浙江方远建材科技有限公司 | High-performance ceramsite and preparation method thereof |
| CN104326767B (en) * | 2014-11-04 | 2017-02-15 | 中联重科物料输送设备有限公司 | Raw material for manufacturing ceramsite and manufacturing method of ceramsite |
| CN104529389A (en) * | 2014-12-31 | 2015-04-22 | 广西科技大学 | Papermaking white mud light shale brick and producing method thereof |
| CN105384318B (en) * | 2015-11-05 | 2018-05-25 | 中国科学院广州地球化学研究所 | A kind of hardening and tempering method that printing and dyeing sludge is controlled to mix the heavy metal pollution for burning engineering |
| CN105541380B (en) * | 2015-12-21 | 2018-03-23 | 中国科学院过程工程研究所 | A kind of flyash cladding sludge ceramsite and preparation method thereof |
| CN105884328A (en) * | 2016-04-07 | 2016-08-24 | 常州工程职业技术学院 | Crystalline silicon cut three-grade sand resource utilization method |
| CN110064359A (en) * | 2019-05-08 | 2019-07-30 | 河海大学 | A kind of flyash for purifying eutrophication water body-bed mud haydite, its production method and application |
| CN110590392A (en) * | 2019-08-29 | 2019-12-20 | 宜兴市创新环保有限公司 | Ceramsite prepared from oily sludge and used for water treatment and preparation method thereof |
| CN110723960A (en) * | 2019-09-19 | 2020-01-24 | 浙江正洁环境科技有限公司 | Method for manufacturing ceramsite by using printing sludge and chemical iron sludge |
| CN113185319A (en) * | 2021-04-22 | 2021-07-30 | 福建师范大学 | Method for firing light ceramsite by utilizing shield mud and textile sludge |
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| CN1171829C (en) * | 2002-03-07 | 2004-10-20 | 华南理工大学 | Method for baking clay ceramsite by using biological sludge of sewage treatment plant |
| CN100584794C (en) * | 2007-12-19 | 2010-01-27 | 清华大学 | Method for producing porcelain granule light weight aggregate with sewage sludge |
| CN101439963A (en) * | 2008-11-04 | 2009-05-27 | 福建省三角洲陶粒科技有限公司 | Haydite and production thereof |
| CN101585672B (en) * | 2009-06-19 | 2011-10-05 | 方远建设集团股份有限公司 | Biosolid-sludge mixed ceram site |
| CN101747050B (en) * | 2009-12-28 | 2012-10-24 | 宁波大学 | Method for firing high performance ceramsite by utilizing municipal sludge |
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Denomination of invention: A lightweight ceramic particle made from urban sludge and printing and dyeing sludge Effective date of registration: 20230928 Granted publication date: 20130529 Pledgee: China Co. truction Bank Corp Jiangmen branch Pledgor: Jiangmen Lvrun New Materials Co.,Ltd. Registration number: Y2023980059854 |