CN102061345A - Comprehensive treatment method for recycling ferrous metallurgical slag - Google Patents

Comprehensive treatment method for recycling ferrous metallurgical slag Download PDF

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CN102061345A
CN102061345A CN 201010561481 CN201010561481A CN102061345A CN 102061345 A CN102061345 A CN 102061345A CN 201010561481 CN201010561481 CN 201010561481 CN 201010561481 A CN201010561481 A CN 201010561481A CN 102061345 A CN102061345 A CN 102061345A
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slag
blast furnace
gas
steel
powder
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CN 201010561481
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Chinese (zh)
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宋金涛
张林浩
梁日忠
赵艳龙
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上海大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Process efficiency
    • Y02P10/21Process efficiency by recovering materials
    • Y02P10/242Slag reuse in metallurgical processes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/54Metal recycling
    • Y02W30/542Recovery or treatment of by-products during pig-iron manufacturing
    • Y02W30/543Treatment of liquid slag

Abstract

The invention relates to a comprehensive treatment method for recycling ferrous metallurgical slag. The method comprises the steps of treatment of ferrous metallurgical slag, such as steel slag, blast furnace water slag, desulfurization gypsum, sludge, blast furnace slag, coal ash slag, and coal gangue, comprehensive treatment of waste coal gas, such as coke oven gas, blast furnace gas, and converter gas, and recycling of production waste water. In the method, the steel slag is comprehensively utilized, the production steps are the same, and the resources, such as plants, equipment and the like can be shared, and the investment is reduced; the waste coal gas, such as the coke oven gas, the blast furnace gas, and the converter gas, serve as drying fuels to be fully utilized, and the residual part of the waste coal gas is used for combustion and power generation, so that energy consumption is reduced; and production waste water is collected and treated and then is returned to production, so that water is saved. By implementing the method, the ferrous metallurgical slag is effectively treated; and the method has good economic and environmental benefits.

Description

钢铁冶金渣资源化综合处理方法 Iron and steel metallurgy Slag integrated approach

技术领域 FIELD

[0001] 本发明涉及一种工业废渣的处理方法,特别是一种钢铁冶金渣资源化综合处理方法。 [0001] The present invention relates to a method of treatment of industrial waste, in particular a metallurgical slag Comprehensive Treatment Method.

背景技术 Background technique

[0002] 钢铁行业是资源的消耗大户,同时也是污染排放大户。 [0002] the steel industry is the large consumption of resources, but also the pollution emitters. 以年产1000万吨钢铁生产企业为例,每年产生钢渣105. 32万吨,高炉干渣5. 4万吨,电厂煤灰渣2. 24万吨,煤矸石0.98万吨,干污泥约2.观万吨。 To produce 10 tons of steel production company, for example, annually produce 1,053,200 tons of steel slag, blast furnace slag 54,000 tons of dry, plant 22,400 tons of coal ash, gangue 09,800 tons, about dried sludge 2. concept tons. 钢铁行业排放的大量的冶金渣,如果不加以合理的处理和利用,必将占用大量的耕地,对环境造成恶劣影响,严重者甚至威胁到企业生产的正常运行。 A large number of metallurgical slag steel industry emissions, if not reasonable handling and use, will take up a lot of arable land, adverse effects on the environment, even severe threat to the production of normal operation. 因此,开展对冶金渣资源化模式的研究,对降低企业生产成本、环境保护和节约资源具有十分重要的意义。 Therefore, research on metallurgical slag resource model, to reduce production costs of environmental protection and resource conservation is of great importance.

[0003] 目前,冶金渣资源化的研究主要集中在以下几个方面:生产矿渣水泥、用作冶金返回原料、用作道路和建筑材料、生产农用肥料和土壤改良剂等。 [0003] At present, metallurgical slag resources focused on the following areas: production of slag cement, metallurgy returned as a raw material for use as road and building materials, production of agricultural fertilizer and soil conditioner and so on. 当前,冶金渣资源化途径比较单一,主要途径是把各种渣单独资源化处理。 Currently, metallurgical slag recycling route is relatively simple, the main way is to separate the various slag treatment resources. 存在的主要问题有:没有形成冶金渣资源化的网络,造成冶金渣资源化柔性较低,不能根据市场的需求进行调整;各冶金渣资源化的产业链较短,没有继续开发下游高附加值产品,经济效益低;没有重视将废煤气(焦炉煤气、高炉煤气、转炉煤气)用于再生产品的生产工序,造成了废煤气(焦炉煤气、高炉煤气、转炉煤气)资源的浪费;没有重视对生产废水回收利用,造成水资源的浪费。 The main problems are: no metallurgical slag formation of network resources, resulting in lower metallurgical slag recycling flexible, can not be adjusted according to market demand; various metallurgical slag recycling industry chain is short, do not continue to develop high value-added downstream products, economic efficiency is low; no attention to the waste gas (coke oven gas, blast furnace gas, converter gas) for recycled products production processes, resulting in a waste gas (coke oven gas, blast furnace gas, converter gas) waste of resources; there is no the importance of wastewater recycling, waste of water resources.

发明内容 SUMMARY

[0004] 本发明的目的在于针对当前钢铁冶金渣处理方法中存在的缺陷,提供一种钢铁冶金渣资源化综合处理方法,以解决当前各种钢铁冶金渣单独资源化处理带来的资源化产品附加值低问题。 [0004] The object of the present invention is the defects of metallurgical slag treatment method of this present, there is provided an integrated method of metallurgical slag processing resources to address the current variety of metallurgical slag processing individual resource resources brought product the problem of low added value.

[0005] 为达到上述目的,本发明采用下述技术方案: [0005] To achieve the above object, the present invention adopts the following technical scheme:

一种钢铁冶金渣资源化综合处理方法,包括钢铁冶金过程中产生的钢铁冶金渣、废煤气的综合利用和生产废水回收利用,其特征在于: One kind of metallurgical slag Comprehensive Treatment method comprising ferrous metallurgy produced during metallurgical slag, waste gas and waste water recycling utilization, wherein:

一种钢铁冶金渣资源化综合处理方法,包括钢铁冶金过程中产生的钢铁冶金渣、废煤气的综合利用和生产废水回收利用,其特征在于: A.所述的钢铁冶金渣的处理的具体步骤如下: One kind of metallurgical slag Comprehensive Treatment method comprising ferrous metallurgy produced during metallurgical slag, waste gas utilization and recycling of waste water, characterized in that: the step of processing the specific metallurgical slag according A. as follows:

a.钢渣处理:从炼钢厂出来的转炉钢渣经滚筒或热闷处理设备粒化后,进行磁选、筛分处理,分离出的含铁量较高的钢渣由转炉作为废钢利用;含铁较低的钢渣作为烧结配料进入钢铁冶炼流程;其余部分经磨粉制成钢渣微粉或或经破碎筛分制成骨料;所述含铁量较高的渣钢为粒径> 15mm、铁含量> 85%的钢渣;所述的含铁较低的钢渣为粒径在粒径< 15mm,85% >铁含量彡80%的钢渣; . A slag treatment: After the heat roller or by the converter slag processing apparatus bored out granulation from steel mill, magnetic separation, screening process, separated by the high iron content of the converter slag as the use of scrap; iron lower sintering ingredient into the slag as iron and steel making process; the rest is made by milling or slag powder or aggregate made by crushing and screening; high iron content of the steel slag particle diameter> 15mm, the iron content > 85% of the slag; the iron-containing slag is lower in particle diameter <15mm, 85%> 80% iron content San slag;

b.高炉水渣处理:高炉水渣经自然堆存脱水后,经过除铁器、金属探测器、气动两路阀溜子送入立磨机进行烘干和粉磨制成矿渣微粉;c.脱硫石膏处理:烧结和电厂烟气脱硫石膏经焙烧炉处理成石膏粉; . B blast furnace slag treatment: blast furnace slag dumps through natural dehydration, after separator, metal detectors, pneumatic two-way valve into the vertical downpipe drying and grinding mill formed slag powder; C gypsum. processing: sintering plant FGD gypsum and gypsum powder was treated roaster;

d.将步骤a、b、c得到的钢渣微粉、矿渣微粉、石膏粉、水泥熟料、外加剂和水混合生产砌块水泥,其中各组分的质量百分含量为: . D of step a, b, c obtained slag powder, slag powder, gypsum powder, cement clinker, admixture and water production of cement block, wherein the mass content of each component is:

e.将干污泥、高炉干渣、钢渣、煤灰渣、煤矸石破碎筛分制成骨料:干污泥和钢渣来自转炉冶炼过程副产物,高炉干渣来自高炉冶炼过程副产物,煤灰渣和煤矸石来自于火力发电厂副产物; . E dry sludge, blast furnace dry slag, steel slag, coal ash, gangue crushing and screening aggregate made: dry sludge and slag from the smelting furnace by-product, blast furnace slag dry process byproducts from the blast furnace, coal gangue and ash from thermal power plant by-products;

f.将步骤d所得砌块水泥、步骤e所得骨料,再配以粉煤灰和水泥,经配料、搅拌、成型、 养护制成建筑砌块; . F block obtained in step d cement, aggregate obtained in step e, together with fly ash and cement, the ingredients, mixing, shaping, curing is made of building blocks;

g.将步骤a所得骨料、配以粉煤灰和水泥,经配料、搅拌、成型、养护制成城市行道砖; . G obtained in step a aggregate, together with the fly ash and cement, the ingredients, mixing, shaping, curing bricks made urban way street;

B.收集钢铁冶金过程中产生的废煤气作燃料用于烘干工序,富余部分通过并网发电为系统提供电力; B. collecting the waste gas produced during metallurgical as fuel for the drying step, the margin portions by supplying power to the grid system;

C.回收生产废水,经处理后再返回生产用水。 C. wastewater recycling, and then return the treated production water.

[0006] 本发明与现有钢铁冶金渣处理方法相比较,具有如下显而易见的实质性特点和优点:各种钢铁冶金渣资源化形成了共生关系,耦合了各种钢铁冶金渣的资源化,提高了系统的柔性;延伸了产业链,生产出高附加值产品建筑砌块和城市行道砖,提高了经济效益;本发明方法利用各种钢铁冶金渣生产的建筑砌块和城市行道砖,可广泛用于建筑领域;干污泥、高炉干渣、钢渣、煤灰渣、煤矸石破碎筛分,具有相同的生产工序,可实现厂房、设备等资源的共享,减少了投资;充分利用废煤气(焦炉煤气、高炉煤气、转炉煤气)用作烘干燃料,富余部分并网发电,降低能耗;将生产废水收集处理以后返回生产,节约用水。 [0006] The present invention in comparison with conventional metallurgical slag processing method having the following features and advantages become apparent substantive: various metallurgical slag to form a symbiotic relationship between resources, the resources of the coupling of various metallurgical slag, improve the flexible system; extended chain, high-value products to produce building block way street and city blocks, to improve the economic efficiency; method of the present invention using a variety of metallurgical slag produced brick building blocks way street and city, can be widely the construction sector; dry sludge, blast furnace dry slag, steel slag, coal ash, gangue crushing and screening, with the same production process, resource sharing can plant and equipment, reducing the investment; full use of waste gas ( coke oven gas, blast furnace gas, converter gas) is used as a fuel drying, the grid of the margin portions, to reduce energy consumption; wastewater collected after the production process returns to save water. 通过本方案的实施,各种钢铁冶金渣得到了有效的处理,能为企业带来显著的经济效益和环境效益。 By implementing this program, various metallurgical slag has been effectively treated, it can bring significant economic and environmental benefits for the enterprise.

附图说明 BRIEF DESCRIPTION

[0007] 图1是钢铁冶金渣资源化综合处理方法的流程图; 图2是本发明方法物流图。 [0007] FIG. 1 is a flowchart illustrating an integrated method for metallurgical slag processing resource; FIG. 2 is a process stream of the present invention, FIG.

[0008] 具体实施办法 [0008] The specific implementation

本发明方法以年产1000万吨钢铁生产企业为例,每年约产生钢渣105. 32万吨(其中约37. 2万t可用于生产城市行道砖和建筑砌块,其余返回转炉和作烧结配料),高炉干渣5. 32 万吨,石屑5. 5万t (电厂煤灰渣2. 24万t,煤矸石0. 98万t,干污泥约2.观万t)。 The method of the present invention is to produce 10 million tons of steel production companies, for example, generate about 1,053,200 tons of steel slag (of which about 372 000 t for the production of bricks and building blocks of urban-way street, and the rest of the converter return each year for sintering ingredients ), blast furnace slag 53,200 tons of dry, stone chips 55000 T (coal ash plants 22,400 t, gangue 09800 t, 2. concept of dry sludge of about ten thousand t). 生产城市行道砖和建筑砌块所需粉煤灰可由钢厂自给,水泥熟料、早强助磨外加剂等原料采用外购。 Needed for the production of urban-way street bricks and building blocks fly ash can be self-sufficient steel mills, cement clinker, grinding aid admixture early strength materials such as the use of outsourcing. 实施办法参见图1和图2。 Measures embodiment Referring to Figures 1 and 2.

[0009] 第一:从炼钢厂出来的转炉钢渣经滚筒或热闷处理设备粒化后,送固体废物综合处理场的钢 [0009] First: the converter slag or hot stuffy by drum granulation processing apparatus out from the steel mill, steel feeding solid waste disposal site

渣处理设施进行磁选、筛分等处理,分离出的含铁量较高的渣钢(粒径> 15mm,铁含量彡85% Slag treatment facilities magnetic separation, sieving process, the high iron content of the separated slag steel (diameter> 15mm, San iron content of 85%

钢渣微粉和矿渣微粉石膏粉水泥熟料外加剂和水 Steel slag and slag powder admixture of cement clinker and gypsum powder water

789^85%, 789 ^ 85%,

12%"18%, 5%〜8%, 12% "18%, 5% ~ 8%,

余量;所述的外加剂为石灰石和碱金属 Balance; said admixture limestone and alkali metal

硅酸盐;)由转炉作为废钢利用;含铁较低的部分(粒径< 15mm,85% >铁含量> 80%)送烧结作为烧结配料进入钢铁冶炼流程;其余部分(粒径:3〜20mm,2(T5()mm铁含量< 80%)经磨粉制钢渣微粉,或经破碎筛分制骨料用于生产城市行道砖和建筑砌块; Silicates;) by a converter using scrap as; the lower part of iron (particle diameter <15mm, 85%> iron content> 80%) as a sintering sinter feed ingredients into the steel smelting process; the rest (particle diameter: 3 ~ 20mm, 2 (T5 () mm iron content <80%) manufactured by milling slag powder, aggregate or by crushing and screening system for the production of bricks and building blocks urban way street;

第二:高炉水渣经自然堆存脱水后,经过除铁器、金属探测器、气动两路阀溜子送入立磨机进行烘干和粉磨。 Second: After the blast furnace slag stockpile Natural dehydration, after the separator, metal detectors, pneumatic two-way valve into the vertical downpipe drying and grinding mill. 从磨机卸出的部分粗粉经由电动锁风阀,链条输送机,斗式提升机, 气动两路阀溜子,电磁分离器及链条输送机、单层重锤式锁风翻版阀返回磨机以便进一步粉磨制矿渣微粉; Discharged from the mill via a conveyor portion meal electric damper lock, chain bucket elevator, pneumatic two-way valve downpipe, electromagnetic separators and chain conveyors, single heavy hammer mill air lock replica return valve made to further grinding slag powder;

第三:将含自由10%左右的脱硫石膏由装料仓通过输送机送到焙烧炉的给料斜槽上, 给料落在流化的炽热的焙烧材料台面上,当温度升到额定台面温度140°C时,游离水分迅速被排除。 Third: containing about 10% of the free gypsum from the charging hopper onto the feed chute by a conveyor roaster, falling feed stream of hot calcined material table, when the temperature is raised to the rated mesa when the temperature of 140 ° C, free water was quickly excluded. 给料在焙烧炉内停留的30至40分钟,脱硫石膏从二水合物基本上转变为半水合物石膏粉; 30-40 minutes feedstock stays in the roaster, the transition from a substantially gypsum hemihydrate gypsum dihydrate powder;

第四:将上述三部得到的钢渣微粉、矿渣微粉、石膏和外购的水泥熟料、外加剂直接按 Fourth: The three slag powder obtained above, slag powder, gypsum and purchased cement clinker, admixture press

眧—— Chao -

定的比例加水混合生产砌块水泥。 Mixing a predetermined ratio with water of cement production block. 钢渣微粉和矿渣微粉占789Γ85%,石膏粉129Γ18%, 水泥熟料59Γ8%,其余是外加剂(石灰石及碱金属硅酸盐)和水,具体可参照文献《钢铁冶金渣的资源化利用》; Steel slag and slag powder accounted 789Γ85%, gypsum powder 129Γ18%, cement clinker 59Γ8%, the remainder being additive (limestone and alkali metal silicate) and water, specific reference is the document "resource use metallurgical slag";

第五:将干污泥、高炉干渣、钢渣、煤灰渣、煤矸石破碎筛分制成生产城市行道砖和建筑砌块的骨料。 Fifth: The dry sludge, dry blast furnace slag, slag, coal ash, coal gangue crushing and screening aggregate production made the city-way street bricks and building blocks. 干污泥和钢渣来自转炉冶炼过程副产物,高炉干渣来自高炉冶炼过程副产物, 煤灰渣和煤矸石来自于火力发电厂副产物; Dry sludge and slag from the smelting furnace by-product, blast furnace slag by-products from the dry blast furnace process, coal ash and gangue from the thermal power plant by-products;

第六:将第五步破碎筛分后的5. 32万t高炉干渣全部消耗,根据骨料配比,钢渣用量为3. 99万t,石屑(电厂煤灰渣、煤矸石、干污泥)用量3. 99万t,骨料总量为13. 3万t。 Sixth: The fifth step 53200 t blast furnace slag after crushing and screening dry completely consumed, according to the ratio of the aggregate, an amount of steel slag 39 900 t, stone chips (coal power plant ash, gangue, dry sludge) The amount of 39 900 t, the aggregate total of 133,000 t. 路面砖、砌块、多孔砖、标砖制品混凝土配方为砌筑水泥:骨料=1 :4,根据此比例,需要砌块水泥 Pavers, block, brick, concrete brick products labeled as masonry cement formulation: Aggregate = 1: 4, according to this ratio, cement block requires

3. 325万t,原料共16. 625万t。 33 250 t, total raw material 166,250 t. 该部分原料全部用于生产建筑砌块,将砌块水泥、骨料,再 All the raw materials used to produce the portion of the building blocks, the blocks of cement, aggregate, then

配以粉煤灰和水泥,经配料、搅拌、成型、养护,生产建筑砌块; Together with the fly ash and cement, the ingredients, mixing, molding, curing, production of building blocks;

第七:将剩余钢渣33. 21万t放置一定时间以减轻游离氧化钙对制品的影响,按照一定的比例,将其中12万t钢渣配1. 5万t水泥,配1. 5万t粉煤灰,经配料、搅拌、成型、养护, 生产城 Seventh: The remaining 332,100 t steel slag are placed some time to reduce the impact of free calcium oxide products, according to a certain proportion, in which 120,000 t 15,000 t steel slag with cement, with 15,000 t powder coal ash, by ingredients, mixing, molding, conservation, production City

市行道砖; City brick-way street;

第八:将剩余1. 51万t石屑和剩余21. 21万t钢渣全部消耗,按照一定的比例,配2. 14 万t水泥,配1. 87万t粉煤灰,经配料、搅拌、成型、养护生产建筑砌块; Eighth: The remaining chippings and 15,100 t 212,100 t of slag remaining completely consumed, according to a certain proportion, with 21,400 t of cement, fly ash with 18 700 t, the ingredients, stirring , molding, curing the production of building blocks;

第九:收集废煤气,作燃料用于烘干工序,富余部分通过并网发电为系统提供电力。 Ninth: collecting the waste gas, as fuel for the drying step, the margin portions by providing power to the grid system. 具体方法参照热冰娣的《钢铁工业煤气的再资源化》和高永芬的《利用废煤气发电的工程设计研究》; Di reference to specific methods of hot ice "gas recycling iron and steel industry of" high-Wing, and the "use of waste gas power generation engineering design study";

第十:回收生产废水,经处理后再返回生产用水。 Tenth: wastewater recycling, and then return the treated production water. [0010] 经济效益:以年产1000万吨钢铁生产企业为例,每年约处理钢渣105. 32万吨(其中约37. 2万t可用于城市行道砖和建筑砌块,其余返回转炉和作烧结配料),高炉干渣5. 32 万吨,石屑5. 5万t (电厂煤灰渣2. 24万t,煤矸石0. 98万t,干污泥约2.观万t),可生产高附加值产品建筑砌块30万m3、城市行道砖150万m2 ;综合利用废煤气和生产废水,减少企业能源消耗。 [0010] economic benefit: an annual output of 10 million tons of steel production companies, for example, handles about 1,053,200 tons of steel slag per year (of which about 372 000 t can be used for urban-way street bricks and building blocks, and for the rest of the converter return sintering burden), blast furnace slag 53,200 tons of dry, stone chips 55000 T (coal ash plants 22,400 t, gangue 09800 t, 2. concept of dry sludge of about ten thousand t), produce high value-added products building blocks 300,000 m3, brick-way street the city 1.5 million m2; comprehensive utilization of waste gas and waste water, reduce energy consumption enterprises.

Claims (1)

  1. 1. 一种钢铁冶金渣资源化综合处理方法,包括钢铁冶金过程中产生的钢铁冶金渣、废煤气的综合利用和生产废水回收利用,其特征在于:A所述的钢铁冶金渣的处理的具体步骤如下:a.钢渣处理:从炼钢厂出来的转炉钢渣经滚筒或热闷处理设备粒化后,进行磁选、筛分处理,分离出的含铁量较高的钢渣由转炉作为废钢利用;含铁较低的钢渣作为烧结配料进入钢铁冶炼流程;其余部分经磨粉制成钢渣微粉或或经破碎筛分制成骨料;所述含铁量较高的渣钢为粒径> 15mm、铁含量> 85%的钢渣;所述的含铁较低的钢渣为粒径在粒径< 15mm, 85% >铁含量彡80%的钢渣;b.高炉水渣处理:高炉水渣经自然堆存脱水后,经过除铁器、金属探测器、气动两路阀溜子送入立磨机进行烘干和粉磨制成矿渣微粉;c.脱硫石膏处理:烧结和电厂烟气脱硫石膏经焙烧炉处理成石膏粉;d.将 A metallurgical slag Comprehensive Treatment method comprising ferrous metallurgy produced during metallurgical slag, waste gas utilization and recycling of waste water, wherein: the specific processing of metallurgical slag according to A as follows: a steel slag treatment: after the heat roller or converter slag by granulation processing apparatus stuffy out from the steel mill, magnetic separation, screening process, separated by the high iron content of the converter slag use for scrap ; lower iron into the slag as iron and steel smelting blending and sintering process; the rest is made by milling or slag powder or aggregate made by crushing and screening; high iron content of the steel slag particle diameter> 15mm an iron content> 85% of the slag; slag lower the iron particle size is a particle size <15mm, 85%> 80% iron content San slag; blast furnace slag treatment B: blast furnace slag through natural after dehydration stockpiling, after separator, metal detectors, pneumatic two-way valve into the vertical downpipe drying and grinding mill formed slag powder; C gypsum process: sintering by firing furnace and power plant flue gas gypsum treated gypsum powder; D will be. 骤a、b、c得到的钢渣微粉、矿渣微粉、石膏粉、水泥熟料、外加剂和水混合生产砌块水泥,其中各组分的质量百分含量为:钢渣微粉和矿渣微粉 78%〜85%,石膏粉 12%〜18%,水泥熟料 5%〜8%,外加剂和水 余量;所述的外加剂为石灰石和碱金属硅酸盐;e.将干污泥、高炉干渣、钢渣、煤灰渣、煤矸石破碎筛分制成骨料:干污泥和钢渣来自转炉冶炼过程副产物,高炉干渣来自高炉冶炼过程副产物,煤灰渣和煤矸石来自于火力发电厂副产物;f.将步骤d所得砌块水泥、步骤e所得骨料,再配以粉煤灰和水泥,经配料、搅拌、成型、 养护制成建筑砌块;g.将步骤a所得骨料、配以粉煤灰和水泥,经配料、搅拌、成型、养护制成城市行道砖;B.收集钢铁冶金过程中产生的废煤气作燃料用于烘干工序,富余部分通过并网发电为系统提供电力;C.回收生产废水,经处理后 Step a, b, c obtained slag powder, slag powder, gypsum powder, cement clinker, admixture and water production of cement block, wherein the mass content of each component is: steel slag and slag powder from 78% to 85%, 12% ~ 18% gypsum powder, 5% ~ 8% of cement clinker, admixture and water balance; said admixture limestone and alkali metal silicates;. e dry sludge, blast furnace dry slag, steel slag, coal ash, gangue crushing and screening aggregate made: dry sludge and slag from the smelting furnace by-product, blast furnace slag by-products from the dry blast furnace process, gangue and ash from the coal thermal power plant by-product; F block obtained in step d cement, aggregate obtained in step e, together with fly ash and cement, the ingredients, mixing, shaping, building blocks made of conservation;. G obtained in step a bone. material, together with fly ash and cement, the ingredients, mixing, shaping, curing bricks made urban way street;. B waste gas as fuel collecting ferrous metallurgy produced during the drying process used, the margin portions of the grid by the system providing power;. C recycling wastewater, after treatment 返回生产用水。 Return process water.
CN 201010561481 2010-11-28 2010-11-28 Comprehensive treatment method for recycling ferrous metallurgical slag CN102061345A (en)

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CN102534069A (en) * 2012-02-03 2012-07-04 北京首钢国际工程技术有限公司 Direct fine grinding process for pudding blast furnace granulated slag
CN102795797A (en) * 2012-08-24 2012-11-28 北京首钢国际工程技术有限公司 Blast-furnace slag ultrafine grinding machine and storage method
CN102864251A (en) * 2012-09-17 2013-01-09 山西太钢不锈钢股份有限公司 Method for enhancing separation utilization ratio of steel slag
CN102899481A (en) * 2011-07-29 2013-01-30 王振江 Calcium-magnesium sintering additive and production process flows thereof
CN103058542A (en) * 2012-12-18 2013-04-24 上海市建筑科学研究院(集团)有限公司 Novel steel mineral powder composite admixture excitant, and preparation and use methods of same
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CN104628272A (en) * 2015-02-10 2015-05-20 武汉理工大学 Gradient utilization method for total components of steel slag
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CN105219972A (en) * 2015-10-30 2016-01-06 北方民族大学 Method for recycling iron from steel slag by utilizing coal ash with high carbon content
CN105363549A (en) * 2014-11-19 2016-03-02 晋江市冠兴建材有限责任公司 Environment-friendly coal slag recycle and treatment system good in metal recycling effect
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CN102864251A (en) * 2012-09-17 2013-01-09 山西太钢不锈钢股份有限公司 Method for enhancing separation utilization ratio of steel slag
CN103058542A (en) * 2012-12-18 2013-04-24 上海市建筑科学研究院(集团)有限公司 Novel steel mineral powder composite admixture excitant, and preparation and use methods of same
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