CN1357504A - Composite production process of steam pressured silicated product with steel slag and pyrite tailings - Google Patents
Composite production process of steam pressured silicated product with steel slag and pyrite tailings Download PDFInfo
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- CN1357504A CN1357504A CN02114707A CN02114707A CN1357504A CN 1357504 A CN1357504 A CN 1357504A CN 02114707 A CN02114707 A CN 02114707A CN 02114707 A CN02114707 A CN 02114707A CN 1357504 A CN1357504 A CN 1357504A
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
- C04B20/008—Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
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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
- 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
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- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
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Abstract
一种用钢渣和硫铁尾矿复合生产蒸压硅酸盐制品的方法,以钢渣和硫铁尾矿按重量比0.1－30复合、粉磨,制得细度为80μm方孔筛筛余百分数0.2%－20%复合粉体,全部或部分取代蒸压硅酸盐制品生产原料中的胶凝材料,用蒸压法生产硅酸盐制品;本发明通过钢渣与硫铁尾矿两种工业废弃物的复合,全部或部分取代蒸压硅酸盐制品生产原料中的胶凝材料,此复合的效果远优于单独使用其中一种材料,其制品的抗压、抗折强度可提高20%以上。A method for producing autoclaved silicate products by compounding steel slag and pyrite tailings. The steel slag and pyrite tailings are compounded and ground at a weight ratio of 0.1-30 to obtain a square hole sieve with a fineness of 80 μm. 0.2%-20% composite powder, all or part of which replaces the gelling material in the production raw materials of autoclaved silicate products, and produces silicate products by autoclaving; the invention uses two industrial wastes of steel slag and pyrite tailings Combination of substances, all or part of which replaces the gelling material in the production raw materials of autoclaved silicate products. The effect of this combination is far better than using one of the materials alone, and the compressive and flexural strength of the product can be increased by more than 20%. .
Description
技术领域technical field
本发明涉及蒸压硅酸盐制品的生产技术，准确地说是涉及用钢渣及硫铁尾矿按比例复合、粉磨，用作生产蒸压硅酸盐制品的原料之一，全部或部分取代生产蒸压硅酸盐制品的胶凝材料，通过成型及蒸压，生产多种蒸压硅酸盐制品。The present invention relates to the production technology of autoclaved silicate products, to be precise, it involves the compounding and grinding of steel slag and pyrite tailings in proportion, which is used as one of the raw materials for producing autoclaved silicate products, replacing all or part of the Production of gelling materials for autoclaved silicate products, through molding and autoclaving, to produce a variety of autoclaved silicate products.
背景技术Background technique
上述蒸压硅酸盐制品主要包括：蒸压加气混凝土、蒸压灰砂砖、蒸压硅酸盐混凝土砌块、蒸压灰砂硅酸盐板、蒸压枕轨、蒸压硅酸盐管道及管桩等。The above-mentioned autoclaved silicate products mainly include: autoclaved aerated concrete, autoclaved lime-sand brick, autoclaved silicate concrete block, autoclaved lime-sand silicate board, autoclaved sleeper, autoclaved silicate Pipes and pipe piles, etc.
现有蒸压硅酸盐制品的一种生产方法是以钢渣为主要原料，经过轮碾活化，与其他原料混合、成型、蒸压制得硅酸盐制品。An existing production method of autoclaved silicate products is to use steel slag as the main raw material, which is activated by wheel milling, mixed with other raw materials, shaped, and autoclaved to obtain silicate products.
在蒸压硅酸盐制品的生产方法中，钢渣的应用技术主要有以下几种：(1)直接用作筑路材料、混凝土集料等；(2)通过活化处理或直接用作水泥混合材；(3)作为主要原料通过蒸压生产空心砌块；(4)作为钙质原料通过蒸压制备加气混凝土砌块。In the production method of autoclaved silicate products, the application technology of steel slag mainly includes the following types: (1) directly used as road construction materials, concrete aggregates, etc.; (2) through activation treatment or directly used as cement admixture (3) as the main raw material to produce hollow block by autoclaving; (4) as calcareous raw material to prepare aerated concrete block by autoclaving.
发明人通过检索得相关文献如下：1、钢渣的综合利用(矿产保护与利用，1999(3)：51-52)——简要介绍了钢渣的特点和加工工艺以及钢渣在钢铁原料，烧结原料和配料，熔剂，筑路材料，建材，农业等方面综合利用的途径，列举了应用实例。2、钢渣的综合利用(上海金属，1999，21(6)：45-49)——钢渣是炼钢工业的副产品，细述了钢渣的理化特性，并介绍了钢渣在筑路，烧结矿，水泥，建材和农业等领域的综合利用。3、橄揽石类钢渣的蒸压胶凝性及产物研究(硅酸盐学报，1997，25(6)：643-650)——本文研究了高温高压条件下纯橄榄石类钢渣与石英橄揽石类钢渣的蒸压胶凝性及其水热反应产物。结果表明：水热蒸压反应使纯橄揽石类钢渣显示出胶凝性；石英砂橄榄石类钢渣的蒸压强度可达50MPa以上，同时，蒸压反应产物分别以水化钙铁石榴子石或Fe-tobermorite为主。4、钢渣在高温高压下的水热反应(硅酸盐学报，1999.27(4)：427-437)——利用XRD，DTA等分析方法研究了不同类型钢渣在水热条件下的蒸压胶凝性和水化产物。结果表明：钢渣的胶凝性在水热条件下得到激发；低碱度钢渣以C3MS2-C2S的水化为主，其产物为C2SH(C)、水石榴石，高碱度钢渣以C2S-C3S的水化为主，其产物为C2SH(A)、Ca(OH)2、C2SH(C)、水石榴石，在本实验条件下钢渣中橄榄石类是稳定的；钢渣中掺入石英砂可大幅度提高蒸压制品的强度。5、 钢渣活化技术及其在水泥生产中的应用(硅酸盐通报，1996(5)：P61～64/当代水泥，1996(1)P35～38)——对苏州钢铁厂的转炉钢渣进行特种活化技术处理，并与水泥熟料、矿渣、石膏等材料混磨试配，测定其物理性能。研究结果表明，经活化技术处理后的钢渣具有较好的水化活性，所配制的钢渣矿渣硅酸盐水泥强度可达到425#。本文分析了钢渣在活化过程中的活化机理，指出钢渣活化技术是钢渣综合利用的一种新技术。6、应用转炉钢渣制备加气混凝土(中国发明专利公报CN86107185A)——该发明公开了应用转炉钢渣作为制备加气混凝土的钙质原料的工艺方法及配方将处理后的转炉钢渣与石灰。石膏、碎玻璃制备成胶结料，代替水泥作为加气混凝土的钙质原料，为保证浇注稳定，该发明规定采用废浆返磨法或粉煤灰一废浆打浆法，并给出了浇注配方及静停养护的温度。7、全钢渣集料混凝土(中国发明专利公报CN1034355A)——本发明公开了一种全钢渣混凝土，它钢渣块为粗集料，以钢渣粉为细集料，再加水和水泥，按定量配合加工而成。本发明成本低、强度高、社会效益显著，它变废为宝，化害为利，有利于社会环境保护和综合利用。本发明适用于国民经济中需用混凝土材料的相应建筑工程各领域。8、平炉钢渣生产空芯砌块的方法(中国发明专利公报CN1066047A)——该发明提供了一种以平炉钢渣为主要原料，辅之以粉煤灰、重矿渣、生石灰及石膏生产空心砌块的方法。用上述原料经混合搅体轮碾活化、成型。蒸养或蒸压等工艺处理，生产出的空心砌块体轻、高强、隔热、保温、成本低廉、工艺简单、生产周期较短；变废为宝，使资源得到综合利用，减少占地面积，管理费用及环境污染，并拓宽了生产墙体材料的原料来源，具有显著的经济效益和社会效益。The contriver obtains relevant documents as follows by retrieval: 1, the comprehensive utilization of steel slag (mineral protection and utilization, 1999 (3): 51-52)--introduced briefly the characteristics and processing technology of steel slag and steel slag in iron and steel raw material, sintering raw material and Approaches to comprehensive utilization of ingredients, fluxes, road construction materials, building materials, agriculture, etc., and application examples are listed. 2. Comprehensive utilization of steel slag (Shanghai Metal, 1999, 21(6): 45-49)—Steel slag is a by-product of the steelmaking industry. It describes the physical and chemical properties of steel slag in detail, and introduces the use of steel slag in road construction, sintering, Comprehensive utilization in fields such as cement, building materials and agriculture. 3. Study on autoclaved gelling properties and products of olivine steel slag (Acta Silicate Sinica, 1997, 25(6): 643-650)——This paper studies pure olivine steel slag and olivine quartz under high temperature and high pressure conditions. The autoclave gelling properties of slag-like steel slag and its hydrothermal reaction products. The results show that: the hydrothermal autoclaving reaction makes the pure olivine steel slag show gelling property; Stone or Fe-tobermorite dominated. 4. Hydrothermal reaction of steel slag under high temperature and high pressure (Acta Silicate Sinica, 1999.27(4): 427-437)—Using XRD, DTA and other analytical methods to study the autoclaved gelation of different types of steel slag under hydrothermal conditions and hydration products. The results show that the gelling property of steel slag is stimulated under hydrothermal conditions; the hydration of C 3 MS 2 -C 2 S in low-alkalinity steel slag is mainly produced by C 2 SH(C), water garnet, and high Alkalinity steel slag is mainly hydrated by C 2 SC 3 S, and its products are C 2 SH(A), Ca(OH) 2 , C 2 SH(C), and water garnet. Stones are stable; adding quartz sand to steel slag can greatly improve the strength of autoclaved products. 5. Steel slag activation technology and its application in cement production (Silicate Bulletin, 1996(5): P61～64/Contemporary Cement, 1996(1)P35～38)——Special treatment of converter steel slag in Suzhou Iron and Steel Plant It is processed by activation technology, and mixed with cement clinker, slag, gypsum and other materials for trial mixing, and its physical properties are measured. The research results show that the steel slag treated by the activation technology has good hydration activity, and the strength of the prepared steel slag slag Portland cement can reach 425#. This paper analyzes the activation mechanism of steel slag in the activation process, and points out that the steel slag activation technology is a new technology for comprehensive utilization of steel slag. 6. Application of converter steel slag to prepare aerated concrete (Chinese Invention Patent Publication CN86107185A) - this invention discloses the process and formula of using converter steel slag as calcareous raw material for preparing aerated concrete by combining the processed converter steel slag with lime. Gypsum and cullet are prepared into cementitious material, which can replace cement as the calcareous raw material of aerated concrete. In order to ensure the stability of pouring, the invention stipulates the use of waste slurry regrinding method or fly ash-waste slurry beating method, and the pouring formula is given And the temperature of static maintenance. 7. All-steel slag aggregate concrete (Chinese Invention Patent Bulletin CN1034355A)——the present invention discloses a kind of all-steel slag concrete, in which steel slag blocks are used as coarse aggregate, steel slag powder is used as fine aggregate, water and cement are added, and the mixture is formulated in a quantitative manner processed. The invention has low cost, high strength and remarkable social benefits, turns waste into wealth, turns harm into profit, and is beneficial to social environment protection and comprehensive utilization. The invention is applicable to various fields of corresponding construction projects requiring concrete materials in the national economy. 8. Method for producing hollow blocks with open hearth furnace steel slag (Chinese Invention Patent Bulletin CN1066047A)—this invention provides a method for producing hollow blocks with open hearth furnace steel slag as the main raw material, supplemented by fly ash, heavy slag, quicklime and gypsum Methods. Use the above-mentioned raw materials to activate and form them by mixing and stirring the body wheel. Steam curing or autoclaving and other processes, the hollow blocks produced are light, high strength, heat insulation, heat preservation, low cost, simple process, and short production cycle; turning waste into treasure, making comprehensive use of resources and reducing land occupation Area, management costs and environmental pollution, and broaden the source of raw materials for the production of wall materials, with significant economic and social benefits.
上述现有技术存在如下缺点：There is following shortcoming in above-mentioned prior art:
1、钢渣直接用作筑路材料、混凝土集料。这种方法没有充分利用钢渣的潜在活性，是资源的浪费。1. Steel slag is directly used as road construction material and concrete aggregate. This method does not make full use of the potential activity of steel slag, which is a waste of resources.
2、钢渣通过活化处理或直接用作水泥混合材，由于钢渣水化速度较慢，所以早期强度较低，影响施工进度。2. Steel slag is activated or directly used as cement mixture. Due to the slow hydration speed of steel slag, the early strength is low, which affects the construction progress.
3、钢渣作为主要原料通过蒸压生产空心砌块。由于钢渣用量多，而钢渣的易磨性较差，轮碾活化耗能较多，且得到的硅酸盐制品的抗压、抗折强度不够高。3. Steel slag is used as the main raw material to produce hollow blocks by autoclaving. Due to the large amount of steel slag used and the poor grindability of the steel slag, the activation energy consumption of wheel milling is large, and the compressive and flexural strength of the obtained silicate products are not high enough.
4、钢渣作为钙质原料通过蒸压制备加气混凝土砌块。由于钢渣的含钙量较低，即使是高碱度的钢渣其钙含量也远低于石灰或水泥，如此用作钙质原料未能充分发挥其潜在活性。4. Steel slag is used as calcareous raw material to prepare aerated concrete blocks by autoclaving. Due to the low calcium content of steel slag, even high-alkalinity steel slag has much lower calcium content than lime or cement, so its potential activity cannot be fully exerted when used as a calcium raw material.
发明内容Contents of the invention
本发明的目的在于针对现有技术存在的缺陷，提供一种用钢渣和硫铁尾矿复合生产蒸压硅酸盐制品的方法，利用我国丰富的工业废弃物——钢渣及硫铁尾矿资源，通过钢渣和硫铁尾矿复合，在蒸压条件下相互作用，生成高性能的水化产物，提高蒸压硅酸盐制品的性能质量。The purpose of the present invention is to aim at the defects existing in the prior art, to provide a method for compositely producing autoclaved silicate products with steel slag and pyrite tailings, and to utilize my country's abundant industrial waste—steel slag and pyrite tailings resources , through the combination of steel slag and pyrite tailings, they interact under autoclaved conditions to generate high-performance hydration products and improve the performance and quality of autoclaved silicate products.
本发明的技术方案是：以钢渣和硫铁尾矿按重量比0.1-30复合、粉磨，制得细度为80μm方孔筛筛余百分数0.2％-20％复合粉体，全部或部分取代蒸压硅酸盐制品生产原料中的胶凝材料，用蒸压法生产硅酸盐制品。The technical solution of the present invention is: compound and grind steel slag and pyrite tailings at a weight ratio of 0.1-30 to obtain a composite powder with a fineness of 80 μm square hole sieve and a percentage of 0.2%-20% sieved, which can be replaced in whole or in part The gelling material in the production raw materials of autoclaved silicate products is used to produce silicate products by autoclaving.
本发明所指钢渣是钢铁工业炼钢过程中的废渣，包括转炉钢渣、平炉钢渣。The steel slag referred to in the present invention is waste slag in the steelmaking process of the iron and steel industry, including converter steel slag and open hearth furnace steel slag.
本发明所指硫铁尾矿是硫铁矿采矿过程中开采、选矿后废弃的部分。硫铁矿是黄铁矿、白铁矿和磁黄铁矿的习惯称呼。The pyrite tailings referred to in the present invention are the discarded parts after mining and beneficiation in the pyrite mining process. Pyrite is the customary name for pyrite, marcasite and pyrrhotite.
本发明与现有技术的比较：Comparison between the present invention and prior art:
1、本发明是通过钢渣与硫铁尾矿两种工业废弃物的复合，全部或部分取代蒸压硅酸盐制品生产原料中的胶凝材料，此复合的效果远优于单独使用其中一种材料，其制品的抗压、抗折强度可提高20％以上。1. In the present invention, through the compounding of two industrial wastes, steel slag and pyrite tailings, all or part of the gelling material in the production raw materials of autoclaved silicate products is replaced. The effect of this compounding is much better than that of using one of them alone materials, the compressive and flexural strength of its products can be increased by more than 20%.
2、本发明钢渣与硫铁尾矿复合后在蒸压条件下，彼此相互作用，形成性能更好、显微结构更优的水化产物，可制备多种优良性能硅酸盐制品。2. After the steel slag and pyrite tailings of the present invention are compounded, they interact with each other under autoclaved conditions to form hydration products with better performance and better microstructure, and can prepare a variety of silicate products with excellent performance.
3、可更有效地利用钢渣和硫铁尾矿两种工业废弃物。3. Two industrial wastes, steel slag and pyrite tailings, can be utilized more effectively.
具体实施方式Detailed ways
实施例1以钢渣、硫铁尾矿按0.1∶1比例复合、粉磨，制得细度为80μm方孔筛筛余百分数0.2％复合粉体，掺入占总量70％的河砂，搅拌均匀，经蒸压生产合格的M10灰砂砖。Example 1 Composite and grind steel slag and pyrite tailings in a ratio of 0.1:1 to prepare a composite powder with a fineness of 0.2% of the sieve residue on a square hole sieve of 80 μm, mix with river sand accounting for 70% of the total amount, and stir Uniform, qualified M10 lime-sand bricks produced by autoclaving.
实施例2Example 2
以钢渣、硫铁尾矿按30∶1比例复合、粉磨，制得细度为80μm方孔筛筛余百分数20％复合粉体，掺入占总量70％的河砂，搅拌均匀，经蒸压生产合格的M10灰砂砖。Steel slag and pyrite tailings are compounded and ground at a ratio of 30:1 to obtain a composite powder with a fineness of 80 μm square hole sieve and a percentage of 20% of the sieve residue, mixed with river sand accounting for 70% of the total, stirred evenly, and passed through Autoclave to produce qualified M10 lime-sand bricks.
实施例3Example 3
以钢渣、硫铁尾矿按5∶1比例复合、粉磨，制得细度为80μm方孔筛筛余百分数10％复合粉体，掺入占总量70％的河砂，搅拌均匀，经蒸压生产合格的M15灰砂砖。Steel slag and pyrite tailings are compounded and ground at a ratio of 5:1 to obtain a composite powder with a fineness of 80 μm square hole sieve and a percentage of 10% of the sieve residue, mixed with river sand accounting for 70% of the total, stirred evenly, and passed through Autoclave to produce qualified M15 lime-sand bricks.
实施例4Example 4
以钢渣、硫铁尾矿按5∶2比例复合、粉磨，制得细度为80μm方孔筛筛余百分数10％复合粉体，其用量占总量的15％，加入占总量25％的石灰、0.5％石膏、60％粉煤灰几种其他胶凝材料，及占总量0.006％的铝粉，成型、蒸压生产合格的07级加气混凝土砌块。Composite and grind steel slag and pyrite tailings in a ratio of 5:2 to obtain a composite powder with a fineness of 80 μm square hole sieve and a percentage of 10% of the sieve. The dosage accounts for 15% of the total, and the addition accounts for 25% of the total. Lime, 0.5% gypsum, 60% fly ash, several other cementitious materials, and aluminum powder accounting for 0.006% of the total, are molded and autoclaved to produce qualified 07-grade aerated concrete blocks.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713229B (en) * | 2009-11-13 | 2012-08-29 | 浙江中厦新型建材有限公司 | Autoclaved aerated concrete building block produced from copper ore tails and process thereof |
| CN103693919A (en) * | 2013-12-24 | 2014-04-02 | 遵化市中环固体废弃物综合利用有限公司 | Autoclaved aerated concrete blocks prepared from iron tailings and steel slags and preparation method thereof |
| CN105884316A (en) * | 2016-04-19 | 2016-08-24 | 北京建筑材料科学研究总院有限公司 | Baking-free brick prepared from iron tailings and preparation method of baking-free brick |
| CN110642345A (en) * | 2019-09-02 | 2020-01-03 | 济南大学 | Sewage dephosphorization flocculant and preparation method and application thereof |
| CN114751661A (en) * | 2022-01-14 | 2022-07-15 | 新疆交通建设集团股份有限公司 | Hot splashing slag treatment method and application |
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2002
- 2002-01-07 CN CNB021147078A patent/CN1149180C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713229B (en) * | 2009-11-13 | 2012-08-29 | 浙江中厦新型建材有限公司 | Autoclaved aerated concrete building block produced from copper ore tails and process thereof |
| CN103693919A (en) * | 2013-12-24 | 2014-04-02 | 遵化市中环固体废弃物综合利用有限公司 | Autoclaved aerated concrete blocks prepared from iron tailings and steel slags and preparation method thereof |
| CN105884316A (en) * | 2016-04-19 | 2016-08-24 | 北京建筑材料科学研究总院有限公司 | Baking-free brick prepared from iron tailings and preparation method of baking-free brick |
| CN105884316B (en) * | 2016-04-19 | 2018-05-04 | 北京建筑材料科学研究总院有限公司 | It is a kind of prepared using iron tailings it is non-burning brick and preparation method thereof |
| CN110642345A (en) * | 2019-09-02 | 2020-01-03 | 济南大学 | Sewage dephosphorization flocculant and preparation method and application thereof |
| CN110642345B (en) * | 2019-09-02 | 2021-12-31 | 济南大学 | Sewage dephosphorization flocculant and preparation method and application thereof |
| CN114751661A (en) * | 2022-01-14 | 2022-07-15 | 新疆交通建设集团股份有限公司 | Hot splashing slag treatment method and application |
| CN114751661B (en) * | 2022-01-14 | 2023-02-28 | 新疆交通建设集团股份有限公司 | Hot splashing slag treatment method and application |
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| CN1149180C (en) | 2004-05-12 |
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