CN101585672B - Biosolid-sludge mixed ceram site - Google Patents
Biosolid-sludge mixed ceram site Download PDFInfo
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- CN101585672B CN101585672B CN2009100998943A CN200910099894A CN101585672B CN 101585672 B CN101585672 B CN 101585672B CN 2009100998943 A CN2009100998943 A CN 2009100998943A CN 200910099894 A CN200910099894 A CN 200910099894A CN 101585672 B CN101585672 B CN 101585672B
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Abstract
The present invention discloses biosolid-sludge mixed ceram site, belonging to the technical field of light materials. The biosolid-sludge mixed ceram site is prepared using raw materials as follows: biosolid of 10-30 parts by weight, and sludge of 70-90 parts by weight, wherein the biosolid is dehydrated mud and the sludge is river sludge and/or piling sludge. Accordingly, the mixed ceram site makes effective use of urban mud, and changes industrial waste solid into valuable; further, this utility model is wide in raw material source and is relatively low in cost.
Description
Technical field
The present invention relates to a kind of haydite, relate in particular to a kind of biological sludge and mud mixed type haydite.Belong to the light material technical field.
Background technology
Haydite has excellent performance, and is low as density, cylindrical compress strength is high, porosity is high, and coefficient of softening height, frost resistance are good, alkali resistant aggregate reaction excellence etc.Special because haydite density is little, inner porous, form, composition are than homogeneous, and certain intensity of tool and soundness, thereby have light weight, and be corrosion-resistant, freeze proof, antidetonation and good multifunctional characteristics such as isolated property.Utilize these excellent performances of haydite, can be with departments such as its widespread use and building materials, gardening, food-drink, flame-proof thermal insulation material, chemical industry, oil, Application Areas is more and more wider, also enlarges continuing.At the beginning of the haydite invention and producing, it is mainly used in building materials field, because the continuous development and the people of technology are more deep to the understanding of haydite performance, the application of haydite surpasses this traditional range of building materials already, constantly enlarges its new application.The application of haydite aspect building materials now drops to 80% by 100%, and application has in other respects accounted for 20%.Along with continually developing of the new purposes of haydite, its ratio in other respects will increase gradually.
Haydite is divided into broken stone type haydite, spheroidal haydite and cylindrical haydite by shape.The broken stone type haydite is generally used natural crystal production, earlier stone is pulverized, is burnt and expand, and sieves powder then; Also available natural and artificial lightweight raw material such as float stone, volcanic cinder, cinder, nature or calcining coal gangue etc., directly crushing and screening and getting.The spheroidal haydite is to adopt granulating disc production.Earlier, add the water granulation then, make ball and burn again and expand or maintenance forms material pulverizing.The haydite major part of China is this kind at present.The cylinder shape haydite generally adopts the plasticity extrusion moulding.Make the mud bar earlier, cut into cylindrical shape again.This haydite is suitable for the higher raw material such as clay such as grade of plasticity, and output is relatively low.The cylinder material base is if adopts back brickkiln burning bloated, the right cylinder ovalization of rolling in kiln.Divide high performance ceramsite and common performance haydite by the haydite performance.High performance ceramsite is meant that the burning that intensity is higher, water-intake rate is lower, density is less expands or baking-free ceramicite.The aboundresources of light-weight aggregate, various in style.It has the branch of natural light-weight aggregate, solid waste light-weight aggregate and artificial lightweight aggregate.Formation condition and performance according to them it seems, can be used for preparing the high performance ceramsite through special processing of having only of high performance concrete.It is the high-performance light-weight aggregate for external general title, can claim also that in China it is a high-strength ceramic granule.High performance ceramsite is to adopt suitable starting material, through special complete processing, and the artificial lightweight aggregate of the different densities grade that manufactures, high strength, low porosity, low water absorption.Some performance of this light-weight aggregate is closely knitly gathered materials similarly to common, and to compare performance more superior with common light-weight aggregate.Common performance haydite is for high performance ceramsite.The strength ratio high performance ceramsite that is it is lower slightly.Porosity is slightly high, water-intake rate is also high.But its over-all properties still is better than common gathering materials.
Existing haydite mainly is to adopt feedstock production such as flyash, clay, shale to form.As Chinese patent application (publication number: CN101182186A) relate to a kind of lytag, it is that 7% the flyash and the aqueous solution are the masterbatch of lytag that this haydite is selected the carbon content volume ratio for use, and volume ratio is 7% flyash for the carbon content volume ratio: the aqueous solution=99.8%: 0.02%; The aqueous solution is made up of water glass, gelling resin and water, and volume ratio is a water glass: gelling portions of resin water=0.6%: 0.4%: 99%; With the carbon content volume is that 7% the flyash and the aqueous solution fully stir mixed, send into spherical machine system ball after mixing, sphere diameter is 10-20mm, send into again in the uncovered kiln, drawing with faggot, blowing spontaneous combustion with gas blower at kilneye, treat that kiln top coal ash ball burnt be popular in after, turn off the blast, treat kiln discharge after 40 minutes, make lytag.Though this haydite doping quantity of fly ash height, no clay component, flyash viscosity and plasticity-are relatively poor, must add relatively large water glass and gel resin, chemical ingredients requirement to flyash is tighter, burns expand difficulty of technology controlling and process, easily generation caking, ring formation, production cost are still higher.
Summary of the invention
The present invention is directed to the defective that prior art exists, a kind of Material Characteristics that makes full use of is provided, cost is lower, and quality product is biological sludge and mud mixed type haydite preferably.
The objective of the invention is to realize by following technical proposal: a kind of biological sludge and mud mixed type haydite, this haydite is by comprising that following materials of weight proportions makes: biological sludge: 10-30 part; Mud: 70-90 part, wherein said mud are dewatered sludge, and described mud is one or both in riverway sludge, the piling mud.The chemical ingredients and the clay of the riverway sludge that the present invention adopts, piling mud are more approaching, it can be utilized as main raw material, the biological sludge that sewage work produces be that auxiliary material passes through batch mixing, granulation, burning expands and cooling after can obtain ultralight, common and high-strength ceramic granule.Because haydite burns till the raw material water ratio is had certain requirement, but biological sludge water ratio when whizzer unloads is higher, can not be directly used in haydite burns bloated, but biological sludge and mud plasticity-are irreversible phenomenas, biological sludge is very fine and smooth, along with Exposure to Sunlight or wind, after surface-moisture was lost gradually in the mud, mud is hardening gradually, and the corner is sharp, the chap gradually of mud fine particle, lose plastic performance,, just become fine sand through grinding mud if in the mud of hardening, inject moisture again, lost viscosity and plasticity-fully, the biological sludge that the present invention adopts and the water ratio of mud are 35%-42%.As preferably, the weight percent proportioning of described raw material is: biological sludge: 15-25 part; Mud: 75-85 part.Further preferred, the weight percent proportioning of described raw material is: biological sludge: 20 parts; Mud: 80 parts, described mud is two kinds in riverway sludge, the piling mud, and wherein the weight proportion of riverway sludge is 50 parts, and the weight proportion of piling mud is 20 parts.The ratio of mud and biological sludge is different also to have great effect to the quality of the haydite produced, and the result is shown in table 1, table 2 and table 3.
Table 1: the haydite quality of the riverway sludge of Different Weight per distribution ratio and dewatered sludge preparation
As can be seen from Table 1: the present invention makes main raw material with riverway sludge, and the dewatered sludge optimal mixing amount is 20%, mixes a certain amount of dewatered sludge, and pellet optimum expansion temperature descends to some extent; The haydite apparent density is minimum to be 800kg/m
3
Table 2: the haydite quality of the piling mud of Different Weight per distribution ratio and dewatered sludge preparation
As can be seen from Table 2: during as main raw material, the dewatered sludge optimal mixing amount is 10-15% with piling mud in the present invention; Mix a certain proportion of dewatered sludge, pellet optimum expansion temperature descends to some extent, and the minimum apparent density of sample is minimum to be 610kg/m
3The dewatered sludge mixed ratio is big more, and it is big that water-intake rate also becomes thereupon, and apparent density is big more.
Table 3: the haydite quality of the riverway sludge of Different Weight per distribution ratio, piling mud and dewatered sludge preparation
As can be seen from Table 3: the present invention is proportioning haydite sample quality the best with riverway sludge 50%+ piling mud 30%+ dewatered sludge 20%, and apparent density is minimum to be 650kg/m
3
In above-mentioned biological sludge and mud mixed type haydite, the chemical ingredients of described dewatered sludge and weight percent thereof are:
SiO
2：18.8％； Al
2O
3：9.18％；
Fe
2O
3：10.31％； CaO：5.40％；
MgO:6.40%; Loss on ignition: 47.76%;
All the other are impurity.Described impurity is impurity such as Na2O, K2O and organic matter.
In above-mentioned biological sludge and mud mixed type haydite, the chemical ingredients of described riverway sludge and weight percent thereof are:
SiO
2：48.27％； Al
2O
3：12.57％；
Fe
2O
3：4.94％； CaO：3.81％；
MgO:2.52%; Loss on ignition: 7.19%;
All the other are impurity.
In above-mentioned biological sludge and mud mixed type haydite, the chemical ingredients of described piling mud and weight percent thereof are:
SiO
2：60.7％； Al
2O
3：15.29％；
Fe
2O
3：6.96％； CaO：1.01％；
MgO:2.10%; Loss on ignition: 7.25%;
All the other are impurity.
It is the biological sludge that the geographic riverway sludge of Taizhou, Zhejiang Province city Jiangjiang and area, Taizhou, Zhejiang Province city piling mud and Taizhou Prefecture, Zhejiang Province sewage work etc. produce that the present invention mainly adopts, and its chemical ingredients is as shown in table 4.
Table 4: the biological sludge in Taizhou, Zhejiang Province city and the chemical ingredients of mud
| Jiangjiang area, Taizhou riverway sludge | The biological sludge that Taizhou Jiangjiang sewage work produces | Taizhou Prefecture's piling mud | |
| SiO 2(％) | 48.27 | 18.8 | 60.7 |
| Al 2O 3(％) | 12.57 | 9.18 | 15.29 |
| Fe 2O 3(％) | 4.94 | 10.31 | 6.96 |
| CaO(％) | 3.81 | 5.40 | 1.01 |
| MgO(％) | 2.52 | 6.40 | 2.10 |
| Loss on ignition | 7.19 | 47.76 | 7.25 |
| Other | 20.70 | 2.15 | 6.69 |
As can be seen from Table 4: the chemical ingredients and the clay of riverway sludge that the present invention adopts and piling mud are more approaching, and can utilize it is main raw material, and biological sludge is an auxiliary material.
In above-mentioned biological sludge and mud mixed type haydite, the raw material of this haydite comprises that also weight part is the auxiliary admixture of 1-10 part, and described auxiliary admixture is one or more mixtures in flyash, limestone powder, powdered iron ore, the borax.The present invention adds an amount of auxiliary admixture and mixes stirring in raw material, the haydite unit weight of making is light but cylindrical compress strength is higher.In above-mentioned biological sludge and mud mixed type haydite, as preferably, chemical ingredients and weight percent thereof that described biological sludge and mud are mixed with haydite materials are:
SiO
2：42％-48％； Al
2O
3：7％-13％；
Fe
2O
3：7％-14％； CaO：3％-5％；
MgO:3%-3.5%; Loss on ignition: 14%-16%;
All the other are impurity.
In above-mentioned biological sludge and mud mixed type haydite, described biological sludge and mud are made the haydite performance perameter and are: tap density: 510-600kg/m
3Cylindrical compress strength: 2.0-2.5Mpa; 1h water-intake rate: 1%-10%.The haydite of this performance perameter is mainly used in structural thermal insulation, wallboard, and building block, refractory materials, mould material is filtered and to be gathered materials, the heat-insulation and heat-preservation of its goods, performance such as durable is excellent, and the market competitiveness is strong.
In above-mentioned biological sludge and the mud mixed type haydite, described biological sludge and mud are made the haydite performance perameter can also be tap density: 610-700kg/m
3Cylindrical compress strength: 3.0-3.5Mpa; 1h water-intake rate: 1%-10%.The haydite of this performance perameter is mainly used on the primary structural component of insulation construction, not only reduces the object deadweight, its good fire resistance, the security that also improves structure greatly simultaneously.
In above-mentioned biological sludge and mud mixed type haydite, described biological sludge and mud are made the haydite performance perameter and are: tap density: 350-500kg/m
3Cylindrical compress strength: 1.5-2.0Mpa; 1h water-intake rate: 1%-10%.The haydite of this performance perameter is mainly used in self-heat conserving, on exterior-wall heat insulation and the structural thermal insulation, at roofing, uses it on the roof, garage and makes the soilless culture material.Also be widely used in artistic stone industry in addition, flower planting etc., applied range, product competitiveness is strong.
In sum, biological sludge of the present invention and mud mixed type haydite have the following advantages:
1, the present invention adopts biological sludge and mud can produce ultralight, common and high-strength ceramic granule as raw material; energy-saving effect is remarkable; help protecting resources such as river, lake and soil, effectively utilized municipal sludge, industrial roach to realize the purpose that turns waste into wealth.
2, raw material of the present invention is mainly biological sludge and mud, and not only raw material sources are extensive, and cost is lower; And provide the approach that effectively utilizes for the minimizing of municipal sludge, innoxious, recycling treatment.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail; But the present invention is not limited to these embodiment.
Table 5: embodiment 1-12 prepares the biological sludge of haydite and the weight part of mud
What adopt among the embodiment 1-12 is the biological sludge of the geographic riverway sludge of Taizhou, Zhejiang Province city Jiangjiang and area, Taizhou, Zhejiang Province city piling mud and the generation of Taizhou, Zhejiang Province city Jiangjiang sewage work.The chemical ingredients of described riverway sludge and weight percent thereof are:
SiO
2：48.27％； Al
2O
3：12.57％；
Fe
2O
3：4.94％； CaO：3.81％；
MgO:2.52%; Loss on ignition: 7.19%;
All the other are impurity.
The chemical ingredients of described piling mud and weight percent thereof are:
SiO
2：60.7％； Al
2O
3：15.29％；
Fe
2O
3：6.96％； CaO：1.01％；
MgO:2.10%; Loss on ignition: 7.25%;
All the other are impurity.
The chemical ingredients of described dewatered sludge and weight percent thereof are:
SiO
2：18.8％； Al
2O
3：9.18％；
Fe
2O
3：10.31％； CaO：5.40％；
MgO:6.40%; Loss on ignition: 47.76%;
All the other are impurity.
Wherein the auxiliary admixture that adopts among the embodiment 1 is a flyash, adopting auxiliary admixture among the embodiment 4 is limestone powder, adopting auxiliary admixture among the embodiment 7 is borax, and the auxiliary admixture that adopts among the embodiment 9 is a flyash, and the auxiliary admixture that adopts among the embodiment 11 is a powdered iron ore.
The production method of this haydite is as follows: after mixing by the raw material of embodiment 1-12 weight part in the table 5, place ageing under the normal temperature, place and carried out partial dehydration in 7 days, the water ratio of dehydration back riverway sludge and dewatered sludge is 37.8%, put into biaxial rneader by feeding machine and carry out abundant batch mixing, mixing time is 3 minutes; Then biological sludge behind the above-mentioned batch mixing and mud are carried out fragmentation in roll crusher; the broken time is 3 minutes; carry out secondary granulation after the fragmentation; adopt for the first time pair roller tablets press pair roller granulation 5 minutes; for the second time adopt granulation cylinder granulation 5 minutes, the particle diameter of particulate material is 5-15mm behind the secondary granulation.
Particulate material after the above-mentioned granulation is put into bitubular rotary kiln carry out preheating, preheating temperature is 300 ℃, and be 20 minutes warm up time; Burn bloatedly after the preheating, the temperature that burn to expand is 1115 ℃, burns the 10 minutes time of expanding; The back of burn expanding is that cooling obtained the haydite finished product after 20 minutes under 100 ℃ the condition in temperature.
Randomly draw the haydite sample that embodiment 1-12 makes, its performance is detected, the performance perameter that detects haydite is as shown in table 6.
Table 6: the performance perameter of the haydite sample that embodiment 1-12 makes
As can be seen from Table 6, better performances such as the tap density of this biological sludge and mud mixed type haydite, cylindrical compress strength, water-intake rate can be produced ultralight, common and high-strength ceramic granule.Energy-saving effect is remarkable, and heat preservation and insulation is good, has good fire resistance properties, anti-seismic performance, anti-permeability performance and endurance quality as material of construction.
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made detailed explanation and has quoted some specific embodiments as proof, to those skilled in the art, only otherwise leave that the spirit and scope of the present invention can be done various variations or correction is obvious.
Claims (6)
1. biological sludge and mud mixed type haydite, this haydite is by comprising that following materials of weight proportions makes: biological sludge: 10-30 part; Mud: 70-90 part, wherein said biological sludge are dewatered sludge, and described mud is one or both in riverway sludge, the piling mud, and the water ratio of biological sludge and mud is 35%-42%; The chemical ingredients of described dewatered sludge and weight percent thereof are:
SiO
2：18.8％； Al
2O
3：9.18％；
Fe
2O
3：10.31％； CaO：5.40％；
MgO:6.40%; Loss on ignition: 47.76%;
All the other are impurity;
The raw material of this haydite comprises that also weight part is the auxiliary admixture of 1-10 part, and described auxiliary admixture is one or more mixtures in flyash, limestone powder, powdered iron ore, the borax.
2. biological sludge according to claim 1 and mud mixed type haydite, it is characterized in that: the chemical ingredients of described riverway sludge and weight percent thereof are:
SiO
2：48.27％； Al
2O
3：12.57％；
Fe
2O
3：4.94％； CaO：3.81％；
MgO:2.52%; Loss on ignition: 7.19%;
All the other are impurity.
3. biological sludge according to claim 1 and mud mixed type haydite, it is characterized in that: the chemical ingredients of described piling mud and weight percent thereof are:
SiO
2：60.7％； Al
2O
3：15.29％；
Fe
2O
3：6.96％； CaO：1.01％；
MgO:2.10%; Loss on ignition: 7.25%;
All the other are impurity.
4. according to any described biological sludge of claim 1-3 and mud mixed type haydite, it is characterized in that: described biological sludge and mud are made the haydite performance perameter and are: tap density: 510-600kg/m
3Cylindrical compress strength: 2.0-2.5MPa; 1h water-intake rate: 1%-10%.
5. according to any described biological sludge of claim 1-3 and mud mixed type haydite, it is characterized in that: described biological sludge and mud are made the haydite performance perameter and are: tap density: 610-700kg/m
3Cylindrical compress strength: 3.0-3.5MPa; 1h water-intake rate: 1%-10%.
6. according to any described biological sludge of claim 1-3 and mud mixed type haydite, it is characterized in that: described biological sludge and mud are made the haydite performance perameter and are: tap density: 350-500kg/m
3Cylindrical compress strength: 1.5-2.0MPa; 1h water-intake rate: 1%-10%.
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| CN101781117B (en) * | 2010-01-27 | 2013-05-08 | 华南理工大学 | Preparation method of antifouling heat insulation light ceramics |
| CN102249584B (en) * | 2011-05-17 | 2013-05-29 | 惠州绿润环保科技有限公司 | Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge |
| CN102633491A (en) * | 2012-05-17 | 2012-08-15 | 浙江方远建材科技有限公司 | Efficient sound-absorbing ceramsite |
| CN102731055B (en) * | 2012-07-13 | 2014-02-19 | 哈尔滨工业大学 | Preparation method for producing lightweight ceramisite from sewage sludge and river sediment through firing |
| CN102815925A (en) * | 2012-07-13 | 2012-12-12 | 哈尔滨工业大学 | Method for preparation of ceramsites by using sludge and river sediment and harmlessness treatment and immobilization of heavy metals |
| CN105000900B (en) * | 2015-07-27 | 2017-12-05 | 辽宁恒宇环保机械设备制造有限公司 | Make the composition and its method of haydite |
| CN106045474A (en) * | 2016-05-27 | 2016-10-26 | 浙江方远建材科技有限公司 | High-volume stone flour lightweight ceramsite and preparation method thereof |
| CN109734417B (en) * | 2019-01-24 | 2022-04-15 | 武汉理工大学 | Sludge water purification lightweight aggregate and preparation method thereof |
| CN110041051A (en) * | 2019-05-07 | 2019-07-23 | 浙江工业大学 | A kind of river bottom mud and construction slurry haydite and preparation method thereof |
| CN110436937B (en) * | 2019-08-19 | 2021-11-09 | 南京师范大学 | Artificial light aggregate containing algae mud, sludge and high organic matters in sludge 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 |
| CN111099903A (en) * | 2019-12-31 | 2020-05-05 | 同济大学 | Ceramsite refractory material based on slurry resource soil and preparation method thereof |
| CN112500127A (en) * | 2020-12-11 | 2021-03-16 | 武汉瑞景环境修复工程有限公司 | Method for preparing building material from chromium-containing acid leaching residue and sludge and production method thereof |
| CN115477489B (en) * | 2022-08-25 | 2023-05-16 | 河南建筑材料研究设计院有限责任公司 | Modified sediment for preparing recycled aggregate permeable concrete and preparation method and application thereof |
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| CN1807339A (en) * | 2005-12-29 | 2006-07-26 | 哈尔滨工业大学 | Harmless and resource utilization treatment method for bottom sludge of polluted water body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1807339A (en) * | 2005-12-29 | 2006-07-26 | 哈尔滨工业大学 | Harmless and resource utilization treatment method for bottom sludge of polluted water body |
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Assignee: Zhejiang Fangyuan Building Materials Technology Co., Ltd. Assignor: Fangyuan Construction Group Limited by Share Ltd|Zhejiang Fangyuan Building Material Technology Co., Ltd. Contract record no.: 2012330000169 Denomination of invention: Biosolid-sludge mixed ceram site Granted publication date: 20111005 License type: Exclusive License Open date: 20091125 Record date: 20120413 |
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Effective date of registration: 20160923 Address after: 318000, Jiaojiang, Zhejiang province Taizhou Binhai Industrial block ten Tong (north of development avenue) Patentee after: Zhejiang Fangyuan Building Materials Technology Co., Ltd. Address before: 318000 No. 56-2 West Zhongshan Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: Fangyuan Construction Group Co., Ltd. Patentee before: Zhejiang Fangyuan Building Materials Technology Co., Ltd. |
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Address after: 318000, Jiaojiang, Zhejiang province Taizhou Binhai Industrial block ten Tong (north of development avenue) Patentee after: Zhejiang Fang Yuanxin materials Limited by Share Ltd Address before: 318000, Jiaojiang, Zhejiang province Taizhou Binhai Industrial block ten Tong (north of development avenue) Patentee before: Zhejiang Fangyuan Building Materials Technology Co., Ltd. |
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