WO2015184695A1 - Procédé de coproduction de fonte de nickel et de produits en laine de roche à l'aide de minerai de nickel latéritique - Google Patents

Procédé de coproduction de fonte de nickel et de produits en laine de roche à l'aide de minerai de nickel latéritique Download PDF

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Publication number
WO2015184695A1
WO2015184695A1 PCT/CN2014/085955 CN2014085955W WO2015184695A1 WO 2015184695 A1 WO2015184695 A1 WO 2015184695A1 CN 2014085955 W CN2014085955 W CN 2014085955W WO 2015184695 A1 WO2015184695 A1 WO 2015184695A1
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WO
WIPO (PCT)
Prior art keywords
rock wool
cotton
nickel ore
pig iron
hot melt
Prior art date
Application number
PCT/CN2014/085955
Other languages
English (en)
Chinese (zh)
Inventor
薄其珉
花建华
王峰
周良
张建军
Original Assignee
山东炜烨节能新材料有限公司
山东炜烨镍业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 山东炜烨节能新材料有限公司, 山东炜烨镍业有限公司 filed Critical 山东炜烨节能新材料有限公司
Publication of WO2015184695A1 publication Critical patent/WO2015184695A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/005—Manufacture of flakes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces

Definitions

  • the invention belongs to the field of inorganic materials, and particularly relates to a process for co-production of nickel pig iron and rock wool products by laterite nickel ore.
  • the traditional rock wool is made of coke as the main fuel and basalt as the main raw material. It is commonly used in cupola melting smelting melt. After melting at high temperature, it is prepared by centrifuge equipment. In order to reduce the viscosity of the melt, a certain amount of dolomite and block blast furnace cooling slag are often added to the ingredients. In the smelting process, in order to reduce the consumption of coke, heating and air supply, oxygen-enriched air supply and the like are also required. However, ores such as basalt are restricted by the place of production, and long-distance transportation will increase the cost, and the rock wool industry cannot be generally developed.
  • the laterite nickel ore uses nickel ore to produce nickel pig iron. It needs to be added with a certain amount of coke. Nickel and iron are reduced at high temperature to form nickel pig iron. The rest of the material is separated from nickel pig iron to form a high temperature melt which is discharged as slag. The slag is discharged as waste after forced water cooling.
  • the use of laterite nickel ore produces a ton of nickel pig iron, which requires 6-8 tons of waste residue, thus occupying a large amount of valuable cultivated land.
  • the laterite nickel ore is fully utilized to meet the requirements for the components required for the production of rock wool, and the present invention provides a process for co-production of nickel pig iron and rock wool products using laterite nickel ore.
  • the invention provides a process for co-producing nickel pig iron and rock wool products by using laterite nickel ore, the process comprising the following steps:
  • step b The hot melt selected in step b is injected into the holding furnace or injected into the heat preservation tank and injected into the holding furnace, and the temperature in the holding furnace is maintained at 1400-1500 ° C;
  • the hot melt in the holding furnace is guided into the four-roll centrifuge through the controllable flow port and the diversion tank, and the rock wool product is obtained through the rock wool product production process.
  • the ore furnace smelting process further comprises an auxiliary material, the auxiliary material comprising one or more of quicklime, limestone or coke; wherein the weight ratio of the main raw materials and the auxiliary materials is:
  • the auxiliary material is a mixture of quicklime and coke, wherein the weight ratio of the main raw materials and the auxiliary materials is:
  • the invention adjusts the main raw materials and auxiliary materials in the production process of the submerged arc furnace, adopts a special slag phase structure, satisfies the acidity requirement of the rock wool product for the melt production, and adjusts the slag temperature to reach the rock.
  • the laterite nickel ore is used to jointly produce hot melt for nickel pig iron and rock wool products through the ore furnace.
  • the laterite nickel ore is a laterite nickel ore or laterite nickel ore sinter.
  • a hot melt having a temperature of 1500 to 1550 ° C and an acidity coefficient of 1.8 is screened.
  • the further selected rock wool products obtained from the hot melt have very good flexibility and strength.
  • the insulating agent and the holding furnace are also filled with a heat insulating agent.
  • the present invention provides a rock wool product provided as a rock wool board, and the rock wool board production process comprises the following steps:
  • Fibrillation step the hot melt in the holding furnace is guided into a four-roll centrifuge through a controllable flow port and a diversion tank, and is drawn into a diameter under the action of the centrifuge. 1-6 ⁇ m rock wool fiber;
  • the cotton gathering step blowing the rock wool fiber to the cotton collecting machine, uniformly applying the binder to the surface of the rock wool fiber, and forming the primary cotton layer under the action of the cotton collecting machine;
  • the pendulum step feeding the primary cotton layer into the conveyor under the action of the pendulum machine, and forming a uniform cotton felt of a multi-layered folding structure under the action of the conveyor;
  • Pleating step preparing the cotton wool with uniform distribution of fibers under the action of a pressure pleating machine
  • Curing and molding steps the structural cotton is sent to a curing furnace for pressurization and shaping, while blowing hot air at 235 ° C to solidify the binder, and forming a cotton sheet having a thickness of 40-200 mm, and the cotton sheet coming out of the curing furnace Cooling, shearing and packaging to obtain rock wool board.
  • the rock wool product is granular cotton
  • the granular cotton production process comprises the following steps:
  • Fibrillation step guiding the hot melt in the holding furnace to four through a controllable flow port and a diversion tank In a roller centrifuge, a rock wool fiber having a diameter of about 5 ⁇ m is drawn by a centrifuge;
  • Cotton gathering step the rock wool fiber is blown to the cotton collecting machine, the binder is uniformly applied to the surface of the rock wool fiber, and the cotton layer is formed under the action of the cotton collecting machine;
  • the cotton-splitting step the cotton layer is broken into a dough by the action of the cotton-splitting machine; the broken dough passes through After the wind is selected, the slag is sucked up by the suction pipe and separated into the cyclone;
  • Granulation step After the mass is separated, it enters the granulator, further tears the mass and breaks the fiber to an average length of 2 cm. Short fibers on the left and right;
  • the ball removing step the short fiber is fed into the slag ball rotary screen; the rotating rolling effect of the sieve causes the fiber to become a spherical mass of about 5-20, that is, granular cotton, and at the same time, a part of the slag ball is separated through the sieve hole; Mixing spherical granulated cotton from the other end of the rotary screen;
  • Packing step the granulated cotton is sent into the silo, weighed, and enters the extrusion bin, and the granulated cotton is obtained after molding.
  • the invention provides the process of co-production of nickel pig iron and rock wool products by laterite nickel ore, and the production of nickel pig iron and rock wool products by nickel ore, and the special slag phase structure is obtained due to the use of special raw materials and auxiliary materials. While greatly reducing the energy consumption of nickel pig iron smelting, the energy consumption of the production process of rock wool products is only 1/4 of the energy consumption of the traditional rock wool products production process, without the emission of sulfur dioxide and other exhaust gases, and the production cost of rock wool products is greatly reduced.
  • the rock wool product prepared by using the main raw materials and auxiliary materials of the invention has good stability, compressive strength and tensile strength, and the indexes of the rock wool products are all in compliance with the standard.
  • the laterite nickel ore calcined sand is used as the main raw material, and a mixture of quicklime and limestone is added before sintering, coke is added in front of the submerged arc furnace, and smelting is carried out in a submerged arc furnace.
  • the weight fraction of laterite nickel ore, quicklime, limestone and coke is 90. : 5:10:5, 60 tons of nickel pig iron, and 330 tons of hot melt;
  • step b The hot melt selected in step b is injected into the heat preservation tank and injected into the holding furnace, and the temperature in the holding furnace is maintained at 1500 ° C;
  • Fibrillation step the hot melt in the holding furnace is guided into a four-roll centrifuge through a controllable flow port and a diversion tank, and is drawn into a diameter of about 5 by the action of the centrifuge.
  • Cotton gathering step the rock wool fiber is blown to the cotton collecting machine, the dustproof oil is uniformly applied to the surface of the rock wool fiber, and the primary cotton layer is formed under the action of the cotton collecting machine;
  • the pendulum step feeding the primary cotton layer into the conveyor under the action of the pendulum machine, and forming a uniform cotton felt of a multi-layered folding structure under the action of the conveyor;
  • Pleating step preparing the cotton wool with uniform distribution of fibers under the action of a pressure pleating machine
  • Curing and molding steps the structural cotton is sent to a curing furnace for pressurization and setting, while blowing hot air at 235 ° C to solidify the binder, cooling the cotton sheet coming out of the curing furnace, cutting and packaging to obtain a rock wool board product.
  • the laterite nickel ore sinter is used as the main raw material.
  • the quicklime is added before the sintering, and the coke is added in front of the ore furnace.
  • the smelting is carried out in the submerged arc furnace.
  • the weight ratio of laterite nickel ore, quicklime and coke is 93:2:5. 100 tons of nickel pig iron, and 600 tons of hot melt;
  • step b The hot melt screened in step b is injected into the heat preservation tank and injected into the heat preservation furnace, and the temperature in the heat preservation furnace is maintained at 1450 ° C, and the heat preservation tank and the heat preservation furnace are all filled with the heat preservation agent;
  • Fibrillation step the hot melt in the holding furnace is guided into a four-roll centrifuge through a controllable flow port and a diversion tank, and is drawn into a diameter of about 5 by the action of the centrifuge.
  • Cotton gathering step the rock wool fiber is blown to the cotton collecting machine, the binder is uniformly applied to the surface of the rock wool fiber, and the cotton layer is formed under the action of the cotton collecting machine;
  • the cotton-splitting step the cotton layer is broken into a mass by the action of the cotton-splitting machine; the crushed mass is sucked up by the air-absorbing pipe after being removed by the air-selection, and is separated into the cyclone;
  • Granulation step After the mass is separated, it enters the granulator, further tears the mass, and breaks the fiber into short fibers having an average length of about 2 cm;
  • the ball removing step the short fiber is fed into the slag ball rotary screen; the rotating rolling effect of the sieve causes the fiber to become a spherical mass of about 5-20, that is, granular cotton, and a part of the slag ball is separated through the sieve hole. And the globular cotton woven into the spherical shape is output from the other end of the rotary screen;
  • Packing step the granulated cotton is sent into the silo, weighed, and enters the extrusion bin, and the granulated cotton is obtained after molding.
  • the various indicators of rock wool products provided by the present invention are tested.
  • the inspection indexes refer to the requirements of GB/T25975-2010 rock wool products for exterior wall insulation of buildings, and the test results are shown in Table 1;
  • the indexes of the rock wool products prepared by the invention all meet the standards, and have good stability, compressive strength and tensile strength, and are suitable for preparing rock wool board, rock wool belt and the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Metallurgy (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne un procédé pour la coproduction de fonte de nickel et de produits en laine de roche à l'aide de minerai de nickel latéritique. Le procédé comprend les étapes suivantes : à l'aide de minerai de nickel latéritique utilisé comme matière première, la préparation de fonte de nickel et d'une masse fondue chaude par fusion dans un four électrique à arc immergé; le criblage de la masse fondue chaude ayant une température de 1 450 °C à 1 580 °C et un coefficient d'acidité de 1,6 à 1,9; l'injection de la masse fondue chaude dans un four d'attente ou l'injection de la masse fondue chaude dans un bac isolant pour l'injecter dans le four d'attente à la manière d'un cordon et le maintien de la température à l'intérieur du four d'attente à 1 400 °C à 1 500 °C; le guidage de la matière fondue chaude dans le four d'attente vers une machine centrifuge à quatre cylindres au moyen d'un élément de tête réglable et d'une tranchée de dérivation et la préparation des produits en laine de roche par un procédé de production de produits en laine de roche.
PCT/CN2014/085955 2014-06-03 2014-09-05 Procédé de coproduction de fonte de nickel et de produits en laine de roche à l'aide de minerai de nickel latéritique WO2015184695A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410240982.1A CN104004873A (zh) 2014-06-03 2014-06-03 采用红土镍矿联产镍生铁和岩棉制品的工艺
CN201410240982.1 2014-06-03

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WO2015184695A1 true WO2015184695A1 (fr) 2015-12-10

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CN (2) CN104004873A (fr)
WO (1) WO2015184695A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106316094A (zh) * 2016-08-17 2017-01-11 北京金隅节能保温科技有限公司 一种耐火岩棉板及其制备方法
CN108017272A (zh) * 2017-12-16 2018-05-11 江苏巨盈节能环保科技有限公司 一种电熔炉生产超细无机纤维的装置
CN110407476A (zh) * 2019-07-05 2019-11-05 青岛德能和无机新材料科技有限公司 一种岩/矿棉制品及其制备方法
CN112047619A (zh) * 2020-08-01 2020-12-08 河南富源岩棉有限公司 一种岩棉板生产线
CN113185260A (zh) * 2021-04-16 2021-07-30 宁夏领航保温材料有限公司 一种耐用环保型保温管材料及生产工艺

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* Cited by examiner, † Cited by third party
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CN104004873A (zh) * 2014-06-03 2014-08-27 山东炜烨节能新材料有限公司 采用红土镍矿联产镍生铁和岩棉制品的工艺
CN104803595A (zh) * 2015-04-15 2015-07-29 张成福 一种岩棉的生产方法
CN106810063A (zh) * 2017-01-10 2017-06-09 江苏省冶金设计院有限公司 一种以冶金渣为原料生产矿物纤维的方法及系统
CN106835354B (zh) * 2017-01-24 2019-12-17 浙江伯益环境科技有限公司 一种利用稀贵重金属的尾矿砂及钽铌浸出冶炼渣制取超细纤维的方法
CN107021641B (zh) * 2017-04-20 2020-02-18 中冶东方工程技术有限公司 一种锰硅合金渣生产矿渣棉的方法
CN107311460A (zh) * 2017-07-12 2017-11-03 青岛青力环保设备有限公司 一种处理铁合金行业工业废渣的工艺
CN108950215A (zh) * 2018-07-27 2018-12-07 湖南金业环保科技有限公司 低品位含镍废料处理方法
CN108975717A (zh) * 2018-07-27 2018-12-11 湖南金业环保科技有限公司 镍冶炼炉渣再利用方法
CN109896747A (zh) * 2019-04-17 2019-06-18 山东大学 一种一步法利用红土镍矿高温热熔废渣制作矿岩棉的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1058007A (zh) * 1990-07-13 1992-01-22 李志勤 生产岩棉的方法及其设备
US5198190A (en) * 1990-12-21 1993-03-30 Enviroscience, Inc. Method of recycling hazardous waste
JP2002293574A (ja) * 2001-03-28 2002-10-09 Paratekku Kk 無機繊維の製造方法
CN101293731A (zh) * 2008-05-27 2008-10-29 杨铧 利用镍铁熔渣显热生产矿棉的方法
CN102161567A (zh) * 2011-03-04 2011-08-24 山东鑫海科技股份有限公司 利用矿热电炉冶炼镍合金熔融废渣显热生产矿棉纤维的方法
CN102627397A (zh) * 2012-04-17 2012-08-08 山东鑫海科技股份有限公司 利用红土镍矿冶炼镍铁剩余熔融渣生产硅酸镁纤维毯的方法
CN104004873A (zh) * 2014-06-03 2014-08-27 山东炜烨节能新材料有限公司 采用红土镍矿联产镍生铁和岩棉制品的工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1245341C (zh) * 2002-12-31 2006-03-15 北新建材(集团)有限公司 一种矿棉粒状棉的生产工艺及其热风系统
CN101586187A (zh) * 2009-03-10 2009-11-25 张国兴 一种新型以天然气为燃料用转底炉冶炼红土镍矿的方法
CN102442771A (zh) * 2010-09-30 2012-05-09 湖州菱佳保温材料有限公司 一种岩棉的生产方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1058007A (zh) * 1990-07-13 1992-01-22 李志勤 生产岩棉的方法及其设备
US5198190A (en) * 1990-12-21 1993-03-30 Enviroscience, Inc. Method of recycling hazardous waste
JP2002293574A (ja) * 2001-03-28 2002-10-09 Paratekku Kk 無機繊維の製造方法
CN101293731A (zh) * 2008-05-27 2008-10-29 杨铧 利用镍铁熔渣显热生产矿棉的方法
CN102161567A (zh) * 2011-03-04 2011-08-24 山东鑫海科技股份有限公司 利用矿热电炉冶炼镍合金熔融废渣显热生产矿棉纤维的方法
CN102627397A (zh) * 2012-04-17 2012-08-08 山东鑫海科技股份有限公司 利用红土镍矿冶炼镍铁剩余熔融渣生产硅酸镁纤维毯的方法
CN104004873A (zh) * 2014-06-03 2014-08-27 山东炜烨节能新材料有限公司 采用红土镍矿联产镍生铁和岩棉制品的工艺

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106316094A (zh) * 2016-08-17 2017-01-11 北京金隅节能保温科技有限公司 一种耐火岩棉板及其制备方法
CN106316094B (zh) * 2016-08-17 2019-06-04 北京金隅节能保温科技(大厂)有限公司 一种耐火岩棉板及其制备方法
CN108017272A (zh) * 2017-12-16 2018-05-11 江苏巨盈节能环保科技有限公司 一种电熔炉生产超细无机纤维的装置
CN110407476A (zh) * 2019-07-05 2019-11-05 青岛德能和无机新材料科技有限公司 一种岩/矿棉制品及其制备方法
CN110407476B (zh) * 2019-07-05 2023-05-23 青岛青力环保设备有限公司 一种岩/矿棉制品及其制备方法
CN112047619A (zh) * 2020-08-01 2020-12-08 河南富源岩棉有限公司 一种岩棉板生产线
CN113185260A (zh) * 2021-04-16 2021-07-30 宁夏领航保温材料有限公司 一种耐用环保型保温管材料及生产工艺

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