CN101654317B - 用于建材中的铁泥与污泥的处理方法 - Google Patents
用于建材中的铁泥与污泥的处理方法 Download PDFInfo
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- CN101654317B CN101654317B CN2009100341043A CN200910034104A CN101654317B CN 101654317 B CN101654317 B CN 101654317B CN 2009100341043 A CN2009100341043 A CN 2009100341043A CN 200910034104 A CN200910034104 A CN 200910034104A CN 101654317 B CN101654317 B CN 101654317B
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- Prior art keywords
- cement
- mud
- roasting
- iron
- weight
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000011514 iron Substances 0.000 title claims abstract description 27
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 27
- 239000004566 building materials Substances 0.000 title claims abstract description 9
- 239000004568 cements Substances 0.000 title abstract description 55
- 239000010802 sludge Substances 0.000 title abstract description 6
- 238000000034 methods Methods 0.000 claims abstract description 10
- 238000006703 hydration reactions Methods 0.000 claims abstract description 9
- 238000010304 firing Methods 0.000 claims abstract description 7
- 230000036571 hydration Effects 0.000 claims abstract description 6
- 238000000151 deposition Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000011499 joint compounds Substances 0.000 claims description 47
- 239000000463 materials Substances 0.000 claims description 32
- 239000011901 water Substances 0.000 claims description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound 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[Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 229910000118 calcium oxide Inorganic materials 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound 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O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229960001866 silicon dioxide Drugs 0.000 claims description 7
- 229910001885 silicon dioxide Inorganic materials 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000000203 mixtures Substances 0.000 claims description 5
- 239000007858 starting materials Substances 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N Iron(III) oxide Chemical compound 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O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound 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- 230000015572 biosynthetic process Effects 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound 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- 238000006243 chemical reactions Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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- 239000010881 fly ash Substances 0.000 description 1
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
本发明是用于建材中的铁泥与污泥的处理方法，包括如下工艺步骤：一、取原材料铁泥与污泥；二、配料与成形，铁泥与污泥接重量比为3∶7或7∶3，放在混合设备内进行搅拌混合与成型；三、焙烧；四、存放养护；五、焙烧的烧成温度为摄氏500～800度，保温15分钟。优点：本产品参入水泥中，能和高温下煅烧出来的水泥熟料颗粒，在水化中能产生优势互补，改善水泥水化性能。单纯的用本产品或者用本产品和矿渣等混合起来粉磨水泥，此水泥具有的性能，完全能和含高温水泥熟料性能相比美；用少量硅酸盐水泥熟料和加本产品粉磨水泥；或用少量本产品和硅酸盐水泥熟料粉磨出高性能的水泥。事实表明本产品在生产过程中及产品所用中没有产生二次污染。
Description
用于建材中的铁泥与污泥的处理方法
技术领域
[0001] 本发明涉及的是一种用于建材中的铁泥与污泥的处理方法，这里所说的铁泥是指 钢铁厂从冶炼炉出来废渣中，回收铁或氧化铁时，排除出来像泥浆一样渣子，钢铁厂称尾矿 渣；所说的污泥是污水处理后留下来像泥一样残渣。本发明就是把铁泥与污泥通过配料，搅 拌成形，自然养护达一定水化程度后，再经焙烧，就得到所需要的产品。本产品和硅酸盐水 泥熟料一起粉磨水泥，能提高水泥水化强度和改善水泥水化性能，本产品能用来单独粉磨 水泥，或者和矿渣、火山灰之类的混合材一起粉磨水泥，而且粉磨出来的水泥能和含硅酸盐 水泥熟料粉磨出来的水泥相比美；本产品在水泥应用中还具有不会使水泥用水量偏高，水 化速度过于偏快的弊端。属于建材技术领域。
背景技术
[0002] 从国内外情况看，早先开始研究最多的是用来作为湿法生产硅酸盐水泥熟料配 料，进而研究用作在较低温度下（约1150°C左右），煅烧成硫铝酸盐贝立特（belit)水泥的 原材料，近来，研究最多的就是制作水泥生产中的混合材，如粉煤灰的处理方法，其关键就 是在于用钙在溶液中产生的碱度，侵蚀粉煤灰球表面的玻璃体，生成部分水化产物，同时破 坏粉煤灰球，使得包含在球体内部的有高度分散二氧化硅和三氧化二铝能被裸露出来；再 通过焙烧脱水，就形成具有吸水能力很强、水化反应活性功能很高的产物。用于水泥生产 中，固然能有效的提高水泥水化反应速度，但也使得水泥浆体的稠度有着较大的提高，其 用水量就随着该产品用量增加呈现猛烈地提高趋势；跟随而来的是极快的水化速度，其状 况也是随着该产品用量增加而迅速的提高，高到一定程度，甚至达到来不及成型浆体就凝 固起来的地步。由于该种材料在水泥中，会造成水泥用水量过高，凝结时间过快的原因，这 就使得应用受到一定的限制。特别在用于制作商品砼的水泥中，当用量偏高时，会影响砼浆 体正常的工作度。为此，有的水泥厂为了避免水泥对砼工作度产生不必要的影响，就把用此 项技术制作出来的材料停止在生产商品砼水泥中应用。与此项技术生产出的产品具有相类 似性能的，还有其它相关技术，如“污泥渣式水泥及其制备方法”技术，用该种技术生产的产 品用于水泥中，同样有使水泥浆体稠度偏高，凝结时间偏快的现象.在较高的用量情况下， 甚至能造成水泥凝结时间快得来不及施工就凝固的弊端。
发明内容
[0003] 本发明提出的是一种用于建材中的铁泥与污泥的处理方法，旨在克服现有技术所 存在的上述缺陷，用铁泥与污泥作为原材料，使水泥的稠度和凝结时间得到有效的控制，并 也可大大降低生产成本，
[0004] 本发明的技术解决方案：用于建材中的铁泥与污泥的处理方法，其特征是该方法 包括如下工艺步骤：
[0005] 一、取原材料铁泥与污泥；
[0006] 二、配料与成形，铁泥与污泥接重量比为3 ： 7或7 ： 3，放在混合设备内进行搅拌混合与成型，搅拌的目的是为了将不同来源的物料充分地混和均勻，为了达到此目的，希望 被搅拌的物料有着均勻的分散度，没有成团或成块现象；成型是为了使物料在存放水化期 间得到充分有效的水化；
[0007] 三、焙烧，焙烧的窑炉是根据成形的物料形体而定，如是块 状物可用砖瓦窑焙烧， 球状物可用回转式烘干机，甚至用回转窑焙烧，物料的球径在10_15mm ；
[0008] 所述的配料应在确保铁泥用量不低于30%的条件下，由于污泥的组成成分波动变 化大，用不同来源的污泥搭配，并根据需要成分波动情况，决定铁泥的用量多少，具体可按 照下式计算：KC = (c-o. 55A-0. 35F-0. 7S03) + S = 0. 8 〜1. 6
[0009] 式中Kc是扣除其它分子成分中占有的氧化钙后剩余的氧化钙与二氧化硅之比常 数；C代表氧化钙百分重量；A代表氧化铝百分重量；F代表氧化铁百分重量；S代表二氧化
硅百分重量；
[0010] 铁泥中的二氧化硅一般在20%左右，氧化钙35% -45%左右；
[0011] 四、存放养护，在保持潮湿的条件下让物料与物料之间在水的作用之下，进行充分 的水化反应，以形成较多的水化矿物，水化至物料中所含有的结晶水大于或者等于15%，就 入窑焙烧；
[0012] 五、焙烧的烧成温度为摄氏500〜800度，如果被烧物料中含有粘土类的物质，物 料烧成温度是不能低于摄氏700度，通常情况下，物料烧成温度在摄氏650士50度，保温15 分钟；
[0013] 本发明的优点：本产品参入水泥中，能和高温下煅烧出来的水泥熟料颗粒，在水化 中能产生优势互补，从而提高水泥强度，改善水泥水化产物性能。利用生产制作中配比的调 节，来满足水泥或砼的凝结时间的需要，满足水泥稠度或砼流动度的需要。根据实际需要， 生产出来的产品，不仅可以和高温水泥熟料混合起来研磨水泥，使水泥包含强度在内的性 能，在原有基础上能进一步得到改善；而且可以在没有高温水泥熟料的情况下，单纯的用 本产品或者用本产品和水悴高炉矿渣等混合起来粉磨水泥，此水泥具有的性能，完全能和 含高温水泥熟料性能相比美（如表一中的队3、队5)；也可以用少量硅酸盐水泥熟料和加本 产品粉磨水泥（如表一中的队6)；或用少量本产品和硅酸盐水泥熟料粉磨出高性能的水泥 (如表一中的Nq7、Nq8)。
[0014] 事实表明本产品在生产过程中及产品所用中没有产生二次污染。 具体实施方式
[0015] 实施例具体见表一和表二对表一的说明。
[0016] 存放养护，在物料水化至其中所含有结晶水等于或大于是15%，入窑焙烧，焙烧的 烧成温度为摄氏650 士 50度。
[0017] 通常情况下，当污泥的用量比较多时，并且在生产的水泥中，此产品用量又比较多 时，不论水泥还是砼，凝结时间就比较短，并且，在固定的用水量条件下，水泥稠度就比较 高，砼流动度就比较低；否则，当在配比中污泥的用量比较少，而铁泥用量比较多时一般情 况下，水泥或砼凝结时间就比较长，水泥稠度也相应的比较低，砼的流动度也就比较好。
[0018] 下表一中列出的测试数据充分说明了使用本发明生产出的产品。
[0019]
[0020]
[0021] 表二中的污泥1指的是由制药厂经污水处理后放出的渣；污泥2指的是由化工厂 经污水处理后放出的渣；
[0022] 表一、二中的处1指的已有技术。
[0023] 表一中数据是泰兴市固废建材有限公司实际生产中相关配比的产品检测结果。
[0024] 表一中有关加工铁泥和污泥用的材料以及配比数据列于表二。表二中配的材料 计量是加热脱去材料中自由水重量百分数计，从此表中材料配比可见，铁泥的用量是从 30 %〜80 %，而污泥的用量是从20 %〜70 % ；另外，为了说明当不含铁泥时，产品性能差的 缺限，故配出处1的物料，并测出相应的数据（见表一中的队2、N04)加以比较。把表二和 表一对照起来看，被加工出来的含有铁泥和污泥产品，用于水泥中表现，在相同用量的情况 下。
Claims (1)
1.用于建材中的铁泥与污泥的处理方法，其特征是该方法包括如下工艺步骤：一、取原材料铁泥与污泥；二、配料与成型，铁泥与污泥按重量比为3 ： 7或7 ： 3，放在混合设备内进行搅拌混合 与成型，搅拌的目的是为了将不同来源的物料充分地混和均勻，为了达到此目的，希望被搅 拌的物料有着均勻的分散度，没有成团或成块现象；成型是为了物料在存放水化期间得到 充分有效的水化：三、焙烧，焙烧的窑炉是根据成型的物料形体而定，如是块状物用砖瓦窑焙烧，球状物 用回转式烘干机，物料球径10mm-15mm ；所述的配料应在确保铁泥用量不低于30%的条件下，由于污泥的组成成分波动变化 大，用不同来源的污泥搭配，并根据需要成分波动情况，决定铁泥的用量多少，具体按照下 式计算=Kc = (C-0. 55A-0. 35F-0. 7S03) +S = 0. 8〜1. 6，式中Kc是扣除其它分子成分中占 有的氧化钙后剩余的氧化钙与二氧化硅之比常数；C代表氧化钙百分重量；A代表氧化铝百 分重量；F代表氧化铁百分重量；S代表二氧化硅百分重量；铁泥中的二氧化硅在20%，氧 化钙 35% -45% ；四、存放养护，在保持潮湿的条件下让物料与物料之间在水的作用之下，进行充分的水 化反应，以形成较多的水化矿物，水化至物料中所含有结晶水大于或者等于15%，就入窑焙 烧；五、焙烧的烧成温度为摄氏500〜800度，如果焙烧物料中含有粘土类的物质，物料烧 成温度是不能低于摄氏700度，保温15分钟。
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| CN1167863A (zh) * | 1996-06-12 | 1997-12-17 | 翁端衡 | 一种加气砼墙体材料及其生产方法 |
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| CN101229945A (zh) * | 2007-01-22 | 2008-07-30 | 大连理工大学 | 一种以废料为主要原料的曝气生物滤池填料及其制备方法 |
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| CN1167863A (zh) * | 1996-06-12 | 1997-12-17 | 翁端衡 | 一种加气砼墙体材料及其生产方法 |
| CN1311170A (zh) * | 2000-01-20 | 2001-09-05 | 张相武 | 使用来自废水的泥浆制造建筑材料方法 |
| CN101229945A (zh) * | 2007-01-22 | 2008-07-30 | 大连理工大学 | 一种以废料为主要原料的曝气生物滤池填料及其制备方法 |
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