CN1259108A - Apparatus for and process of water granulating matte or slag - Google Patents

Apparatus for and process of water granulating matte or slag Download PDF

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Publication number
CN1259108A
CN1259108A CN98805669A CN98805669A CN1259108A CN 1259108 A CN1259108 A CN 1259108A CN 98805669 A CN98805669 A CN 98805669A CN 98805669 A CN98805669 A CN 98805669A CN 1259108 A CN1259108 A CN 1259108A
Authority
CN
China
Prior art keywords
pelletizer
case
granulation
water
melting material
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN98805669A
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Chinese (zh)
Other versions
CN1114565C (en
Inventor
戴维·B·乔治
吉苏斯·A·塞普尔韦达
安冬尼·J·韦迪克
安冬尼·G·斯托里
戴维·阿拉纳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kennecott Holdings Corp
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Kennecott Holdings Corp
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
Priority claimed from US08/866,484 external-priority patent/US6000242A/en
Application filed by Kennecott Holdings Corp filed Critical Kennecott Holdings Corp
Publication of CN1259108A publication Critical patent/CN1259108A/en
Application granted granted Critical
Publication of CN1114565C publication Critical patent/CN1114565C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/10—Forming beads
    • C03B19/1005—Forming solid beads
    • C03B19/1045—Forming solid beads by bringing hot glass in contact with a liquid, e.g. shattering
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/074—Tower structures for cooling, being confined but not sealed
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Furnace Details (AREA)
  • Manufacture Of Iron (AREA)
  • Glanulating (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Molten matte or slag is water granulated by feeding molten matte or slag through a launder (10a, 10b) to a granulator tank (11a, 11b). Tank (11a, 11b) comprises sloping walls and is equipped with adjustable overflow weirs (22b) and one or more spray nozzles (19a, 19b). Nozzles (19a, 19b) are positioned so water that they emit impacts substantially all of the molten matte or slag that is fed to granulator tank (11a, 11b). Granulation tank (11a, 11b) is optionally coated with a polymeric material to reduce the potential for phreatic explosions. The granulator is optionally equipped with a gas offtake (16b) which can be connected directly to quench tower (14b) which in turn can be connected to an induced ventilation system (15). The granulator is preferably fitted with an explosion relief opening (27b) consisting of durable channels (28b) with explosion relief opening (27b) preferably covered with a polymeric material (29b).

Description

Water granulating matte or scoriaceous device and technology
Technical field
The present invention relates to water particleization.On the one hand, the present invention relates to a kind of water granulation molten matte or scoriaceous device, on the other hand, the present invention relates to a kind of water granulating matte or scoriaceous method.On the other hand, the present invention relates to water granulating matte or scoriaceous apparatus and method under a kind of envrionment conditions of the trouble-free service in minimum WIH vapour blast (if present).
In different hot smelting technologyes, particularly in non-ferrous metal metallurgy technology, each produces molten matte and slag as intermediate product and byproduct naturally.To these materials effectively handle can make its diminish become flowable microgranular.Existing many methods can reach reducing of above-mentioned material, comprise water particleization, gas granulation, pulverize, rotary-atomizing (so the place is with reference to the content described in the USP5409521 that quotes) or the like.Because consider convenient, safety and expense, water carries out the method for granulation often as the preferable methods that reduces sulfonium and slag granularity.Described a kind of typical water particle method among the USP5468279, quoted as a reference herein.
Though all technology recited above are effectively on a certain degree or another degree, above-mentioned all technology are still needed at environment protection and secure context and are improved constantly.Particularly for the method for water particleization, the raising of releasing the recovery of gas and reducing aspect such as WIH vapour blast is the target of continuous pursuit.
Summary of the invention
According to the present invention, it is by a chute molten matte or slag to be fed in the pelletizer case that water carries out granulation to molten matte or slag.The pelletizer case and bag contain inclined wall and dispose one or more dividing plates, and described dividing plate is divided into active granulation district and quiescent settling district with the pelletizer case.This pelletizer case also disposes adjustable overflow weir and a plurality of nozzle.On all molten mattes or slag that the layout of these nozzles can make the water of its ejection affact to send into the pelletizer case.The pelletizer case preferably coats one deck polymeric material and is used for reducing the blast of potential steam.This pelletizer also preferably disposes a gas off-take, and this gas off-take can directly link to each other with aeration tower, and quench tower links to each other with the exhaust ventilation system in order.
This pelletizer case also assembles simultaneously and is used for removing the chapelet of granulated materials.The water that overflows from pelletizer is admitted to thickener/settler and comes solid in the recycle-water.Granulation water from the recovery of thickener/settler is cooled and is recycled, and tackles the pH value of above-mentioned water and controls to remove pollution substance most effectively from the ventilating gas of pelletizer.
Brief description
Fig. 1 is the synoptic diagram of an embodiment of sulfonium pelletizing technology, and sulfonium enters two pelletizers from chute and enters the granulating matte transfer roller again among this embodiment.
Fig. 2 is the synoptic diagram of two pelletizers among Fig. 1.
Fig. 3 is the synoptic diagram of the chapelet shown in Fig. 1 and Fig. 2.
Most preferred embodiment
Water granulation device among the present invention is applicable to molten matte or slag or both mixtures is carried out granulation.Typical sulfonium and scoriaceous mixture comprise as at USP5449395; USP4416690; USP5217427; The material that produces in the copper smelting process described in the USP5007959, above-mentioned all patents are all used as reference at this.Describing the patent USP5215571 that produces typical sulfonium and slag mix in the nickel smelting process also uses as reference at this.
Utilize same numbers to indicate same parts among the figure.For simplifying the description of this invention, different parts of some in the device such as valve, annex, well heater etc. all are omitted in the drawings, but will be appreciated that as those skilled in the art the parts that these tradition are used are needed in the work.
An exemplary embodiments that has shown working process of the present invention among Fig. 1.Molten matte (for example product in copper or the nickel production process) or slag, sulfonium in this case are delivered to pelletizer case 11a and 11b by chute 10a and 10b from one or more smelting devices or other pyrometallurgical smelting stove (not shown)s.Molten matte contacts with water in these pelletizer casees, and molten matte is changed into the sulfonium of granulation and is collected in the bottom of pelletizer case.Chapelet 12a and the 12b sulfonium after with granulation moves on conveying belt 13 or the similar e Foerderanlage from the bottom of pelletizer case continuously or in batches, and these e Foerderanlages are delivered to the sulfonium of granulation storage or conveyer or are delivered to other places further processes (these technologies all show in the drawings).
Fig. 2 has shown an embodiment of pelletizer of the present invention.Typically, this pelletizer (described herein is pelletizer 11b) comprises the enclosed-ventilated tower 14b that links to each other with ventilation duct 15.Aeration tower 14b links to each other with the vapour cover 16b that covers granulation district 17b.The granulation district is equipped with the middle bucket (as at the bucket 18a as shown in office's sectional view of granulation district 17a) that is associated with one or more water jets (as 19a and 19b), and the molten matte of pouring out from middle barrel (each collects these molten mattes in chute 10a and 10b) can contact with the water that sprays from nozzle immediately and fully like this.
Molten matte contacts the steam that produces and is expelled to parichnos by the gas hood collection and by aeration tower with water.Middle bucket preferably is positioned on the nozzle, handles nozzle by this way, and nozzle just can spray or cascade ground ejection water jet.From middle bucket, topple over the molten matte that just by or sink in the current.
Just be collected by contact molten matte with water by granulation and at the bottom such as the quiescent centre 20b place of particulate case.Granulation district 17b is separated by dividing plate 21b and quiescent centre 20b, and dividing plate 21b is generally one or more cement or steelwork components that stretch out from the inwall of pelletizer case.Quiescent centre 20b also is equipped with granulation water overflow weir 22b, and this weir plate can be collected overflow water and make it and the granulation aqueous phase separation of quiescent centre.The sulfonium of granulation is finally transported from the quiescent centre by the chapelet 23b shown in Fig. 3.
Also be equipped with in the pelletizer case when melting material leaves the granulation district and produces overflow and to its parts (as urgent chute 24b and urgent tube 25b) of controlling and guiding.
The pelletizer case is made of the cement of strengthening or other suitable structured materials such as steel, and it comprises the inclined wall (as shown in Figure 3) that the material after the granulation is inducted into chapelet.Overflow weir arranges that along one side of pelletizer case weir plate is preferably adjustable with the recalling of the water that allows to be controlled.Weir plate in pelletizer, be separated with the outer wall of pelletizer casing and with the turbulent flow aqueous phase separation that causes by metal separation baffles 26a and 26b, metal separation baffles 26a and 26b stretch in the water as shown in Figure 2.
In one embodiment, water enters granulation tank or pelletizer case by a dish (not shown), and described dish is made and is installed on a plurality of nozzles with stainless steel.The number of nozzle, diameter (size) and position can change according to appropriate size, number and the position of operation convenience, the used nozzle of melting material and the performance perameter of granulation operation, the last particle size and the different of similar factor of the desired granulated product that obtains.The quantity and the scale of the comprehensive final decision steam blast of above-mentioned all factors.
Selectively, shot tank is coated with one deck polymeric material such as charcoal tar epoxy, and this material is used for reducing the blast potential possibility of melting material.Though do not want to be bound by theory, when the bubble evaporation begins to form assembly, between melting material and pelletizer case, add organic materials and can stop metal---the blast between water.
The speed that current enter the pelletizer case will change according to the design of case, the characteristic of melting material and the variation of quantity, water temperature and other factors; but typical rate variation should be in 30 tons of water of material per ton between 10 tons of water of material per ton, preferably is in 25 tons of water of material per ton between 15 tons of water of material per ton.Working parameter according to different sizes and water particle system; exemplary systems per hour can be handled 60 tons of melting materials such as copper matte regulus usually; and often surpass 85 tons/hour, some design and running per hour can be handled under the situation that does not produce the catastrophic explosion and surpass 200 tons even 300 tons of melting materials.
Hydraulic pressure be in about 65 and 120psig between, preferably be in 85 and 105psig between, can not have the blast granulation like this.Some very little sounds be often have and also help to make the operator be sure of system normally the operation.Water temperature should surpass or be 90 °F especially, preferably is between about 120 to 140 °F.
Pelletizer preferably assembles a blast pressure release opening 27b who is made of durable material such as stainless steel, and passage 28b arranges with certain spacing, can reduce like this from discharging the possibility of solid material with the nearest granulation district of melting material input slot.Blast pressure release opening herein preferably also coats one deck polymeric material 29b such as polymkeric substance and applies film fabric, and blast pressure release opening keeps to stop the release of steam in normal course of operation by elastic rope but can eliminate pressed gas (can stop the structural failure to particulate case and relevant device like this) at explosion time.
Pelletizer preferably is equipped with gas off-take, and this gas off-take directly links to each other with aeration tower (scrubber) 14b, links to each other with exhaust ventilation system (as ventilation duct 15) then.The operation of aeration tower can clear the pollution off by the effluent of main granulation water matter such as sulphur dioxide or particulate matter.The aeration tower air-flow can directly flow to the pelletizer case.Another kind of alternative is: pelletizer can ventilate by being positioned at scrubber (not shown) at a distance.In another kind of alternative, pelletizer can be overflowed the ventilation chute that enters sealing except that non-pneumatic to stop any gas by tight seal.
Chapelet is used for transporting material from the pelletizer case, is equipped with roller, guide rail and hoisting winch on this lift, thus like this this lift can from the pelletizer case, partly shift out be used for the maintenance or material is shifted out from case is controlled.Back one process makes by the unlikely overfill of material of granulation in the pelletizer case of digging.
Be directed into thickener/settler (not shown) from the overflow water of pelletizer and reclaim any solid entrained in the granulation water.Can send into selectively in the fluted particulate Excavating bucket from the bottom underflow of thickener, with filtration and the recovery of carrying out material.Another kind of alternative is: the bottom underflow can be directed in the filtration unit.
The pH value of granulation water is to control as sodium hydroxide (NaOH) by adding basic compound, can keep the pH value for neutral alkaline to omiting like this.In another embodiment, the in check water of pH value is used for cleaning the pollution substance from the pelletizer ventilating gas.
The granulation water can cool off in traditional cooling tower, and then it is circulated to granulation system.Preferably provide a standby water supply system, even can guarantee that also current enter the pelletizer end under the situation of main granulation pump cutting out like this in the supply of electric power interruption.
Though reach above-mentioned different embodiment with reference to the accompanying drawings the present invention has been carried out very detailed description, this document only is that described the present invention limits for illustrative purposes rather than to additional claim.

Claims (2)

1. one kind is carried out the device of granulation with melting material, and this device comprises:
A. melting material is delivered to the pelletizer case with inclined wall from the melting material source, described pelletizer case has dried edge zone (freebord area), this pelletizer case is equipped with (i) water overflow weir, this weir plate is separated with dried edge zone mutually by the baffle plate that at least one stretches in the case, (ii) dividing plate that the pelletizer case is divided into quiescent centre and active granulation district, (iii) be used for material is distinguished from the device of going out from active granulation, stop that (iv) solid material enters the device of (A) device from the casing discharge;
B. in melting material discharge and eject water to device on the melting material when entering the active granulation district of pelletizer case from device (A), so that melting material changes granulated materials into and in the quiescent centre of pelletizer case it is collected;
C. be used for device that the material after the granulation is transported from the quiescent centre of pelletizer case;
D. be used for collecting the device of the gas that from the pelletizer case, overflows.
2. the method for a granulation melting material, this method comprises:
A. melting material is sent into the granulation district of pelletizer case;
Melting material is contacted with enough water, make melting material be converted into the material of granulation under the situation of unlikely damage pelletizer case in that the steam blast is only arranged;
C. in the quiescent centre of pelletizer case, collect the material of granulation;
D. collect the gas that overflows from the pelletizer case, the gas reforming that will overflow is the form that is suitable for draining in the environment;
E. with in (B) step the water in the granulated materials reclaim recovery, then with the water cycle that reclaims to step (B);
F. granulated materials is removed from the quiescent centre of pelletizer case.
CN98805669A 1997-05-30 1998-05-28 Apparatus for and process of water granulating matte or slag Expired - Fee Related CN1114565C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/866,484 1997-05-30
US08/866,484 US6000242A (en) 1996-05-31 1997-05-30 Apparatus for and process of water granulating matte or slag

Publications (2)

Publication Number Publication Date
CN1259108A true CN1259108A (en) 2000-07-05
CN1114565C CN1114565C (en) 2003-07-16

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CN98805669A Expired - Fee Related CN1114565C (en) 1997-05-30 1998-05-28 Apparatus for and process of water granulating matte or slag

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EP (1) EP0988256A4 (en)
JP (1) JP2002501471A (en)
KR (1) KR100507883B1 (en)
CN (1) CN1114565C (en)
AU (1) AU730145B2 (en)
BG (1) BG64257B1 (en)
BR (1) BR9809195A (en)
CA (1) CA2290500C (en)
PL (1) PL186835B1 (en)
RU (1) RU2203864C2 (en)
TR (1) TR199902919T2 (en)
WO (1) WO1998054103A1 (en)
YU (1) YU62099A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314493C (en) * 2002-11-25 2007-05-09 保尔.沃特公司 Spraying head for granulation device
CN104903474A (en) * 2012-12-20 2015-09-09 奥图泰(芬兰)公司 Method and apparatus for acid granulation of matte
CN113584315A (en) * 2021-07-31 2021-11-02 山东齐力环保科技有限公司 Recovery unit is smelted to useless catalyst

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7857887B2 (en) * 2008-12-20 2010-12-28 Xiangguang Copper Co., Ltd. Environment-friendly non-noise matte granulation technique
AU2008261182B2 (en) * 2008-12-22 2013-05-23 Xiangguang Copper Co., Ltd Environment-friendly non-noise matte granulation technique
KR101556596B1 (en) 2013-05-03 2015-10-01 이엔비나노텍(주) Direct cooling manufacturing apparatus for molten slag and manufacturing method thereof
CN110004256A (en) * 2019-04-26 2019-07-12 马鞍山市佳腾节能环保科技有限公司 A method of blast furnace granulated slag is automatically grabbed using driving
CN110090488B (en) * 2019-05-31 2021-04-06 安徽中巨机电设备有限公司 Slag-water separation device

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US2159433A (en) * 1938-01-05 1939-05-23 John F Ervin Method of disintegrating metal into shotting
US2286078A (en) * 1939-01-31 1942-06-09 Holland & Hannen And Cubltts L Foaming or granulating molten material
US2384892A (en) * 1942-05-28 1945-09-18 F W Berk & Company Method for the comminution of molten metals
AU287514B2 (en) * 1964-07-22 1966-04-21 The Eagle-Picher Company Method and apparatus for manufacturing porcelain enamel frit
LU79466A1 (en) * 1978-04-18 1979-05-25 Sidmar Nv PROCESS AND PLANT FOR TREATMENT AND HANDLING OF METALLURGIC DAIRY
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FI814233L (en) * 1981-12-31 1983-07-01 Ahlstroem Oy FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV GLASSKAERVMASSA
FR2542760B1 (en) * 1983-03-17 1987-09-11 Gagneraud Francis IMPROVED PLANT FOR THE CONTINUOUS PROCESSING OF FUSED MATERIALS TO OBTAIN BOULETTE PRODUCTS
SU1426956A1 (en) * 1984-12-28 1988-09-30 Государственный Союзный Институт По Проектированию Металлургических Заводов "Гипромез" Installation for granulating metallurgical melt
US4995894A (en) * 1989-05-01 1991-02-26 National Slag Limited Enclosures for slag pelletization apparatus and method of operation
US5468279A (en) * 1994-09-19 1995-11-21 Mitsubishi Materials Corporation Method for water-granulating calcium ferrite slag

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1314493C (en) * 2002-11-25 2007-05-09 保尔.沃特公司 Spraying head for granulation device
CN104903474A (en) * 2012-12-20 2015-09-09 奥图泰(芬兰)公司 Method and apparatus for acid granulation of matte
CN104903474B (en) * 2012-12-20 2017-04-05 奥图泰(芬兰)公司 For the method and apparatus of the sour pelletize of sulfonium
US9777345B2 (en) 2012-12-20 2017-10-03 Outotec (Finland) Oy Method and apparatus for acid granulation of matte
CN113584315A (en) * 2021-07-31 2021-11-02 山东齐力环保科技有限公司 Recovery unit is smelted to useless catalyst

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Publication number Publication date
KR100507883B1 (en) 2005-08-17
JP2002501471A (en) 2002-01-15
BG64257B1 (en) 2004-07-30
TR199902919T2 (en) 2000-02-21
RU2203864C2 (en) 2003-05-10
KR20010013038A (en) 2001-02-26
CA2290500C (en) 2007-03-20
CA2290500A1 (en) 1998-12-03
BR9809195A (en) 2000-08-01
AU730145B2 (en) 2001-03-01
EP0988256A1 (en) 2000-03-29
YU62099A (en) 2000-12-28
PL337082A1 (en) 2000-07-31
CN1114565C (en) 2003-07-16
WO1998054103A1 (en) 1998-12-03
BG103935A (en) 2000-07-31
AU7603398A (en) 1998-12-30
PL186835B1 (en) 2004-03-31
EP0988256A4 (en) 2000-07-19

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Granted publication date: 20030716