CN101386917A - Noiseless environment friendly matte granulation technology - Google Patents

Noiseless environment friendly matte granulation technology Download PDF

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Publication number
CN101386917A
CN101386917A CNA2008101580808A CN200810158080A CN101386917A CN 101386917 A CN101386917 A CN 101386917A CN A2008101580808 A CNA2008101580808 A CN A2008101580808A CN 200810158080 A CN200810158080 A CN 200810158080A CN 101386917 A CN101386917 A CN 101386917A
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CN
China
Prior art keywords
matte
chute
cold water
gas
environment friendly
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CNA2008101580808A
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Chinese (zh)
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CN101386917B (en
Inventor
周松林
刘卫东
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Yanggu Xiangguang Copper Co Ltd
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Yanggu Xiangguang Copper Co Ltd
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Priority to CN 200810158080 priority Critical patent/CN101386917B/en
Priority to DE200910001340 priority patent/DE102009001340A1/en
Priority to FI20095243A priority patent/FI20095243A/en
Publication of CN101386917A publication Critical patent/CN101386917A/en
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Publication of CN101386917B publication Critical patent/CN101386917B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/084—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid combination of methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/086—Cooling after atomisation
    • B22F2009/0872—Cooling after atomisation by water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0896—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid particle transport, separation: process and apparatus

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  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The invention discloses a non-noise and environment-friendly copper matte granulation process, which comprises the following steps of: allowing the melted copper matte to flow out of a chute; jetting air to the melted copper matte by an air-jet device and scattering the melted copper matte flowed downwards from the chute into a plurality of small droplets by the jetted gas; cooling the scattered small droplets into copper particles in semi-molten states or in solid states in the air by the gas at the same time; allowing the copper particles to pass through the under-pressure cold water to undergo an water quenching treatment in a process of subsequent falling; and further cooling the copper particles and the under-pressure cold water after the copper particles and the under-pressure cold water entering a cold water pool and conveying the produced sand-shaped copper matte by a dehydration transport system to the next procedure. The process can overcome explosion phenomenon during the water quenching process, prevent a chemical reaction during the water quenching process, and reduce noise pollution, has the advantages of simple process and convenient operation, and can solve the problem existing in the water quenching process of the copper matte.

Description

Noiseless environment friendly matte granulation technology
Technical field
The present invention relates to the granulated processed of metallurgy industry molten materials, be specially adapted to the pelletizing technology of high-temperature fusion matte and metallurgical slag.
Background technology
" two sudden strain of a muscle " (flash smelting+flash blowing) copper making technology is environmental protection, copper smelting technology efficiently, along with utilization, the development and perfect of this technology, to the granulation of high-temperature fusion matte and blowing slag will become copper smelt produce in indispensable link.Currently used matte granulation method; the basis of its technological process is with cold water with pressure the high-temperature fusion matte directly to be carried out shrend; because the high-temperature fusion matte directly contacts with water; in vaporized expanding rapidly; also chemical reaction can take place, can occur explosion phenomenon (custom is called matte and blows out) in the process of shrend.Matte is blown out and can be brought many negative influences: the one, and the serious threat job safety; The 2nd, cause noise pollution; The 3rd, the SO in the chemical reaction product 2Or H 2S can make the shrend water quality deterioration, and is serious to equipment corrosion; The 4th, cause the detailed catalogue matte too much, a part of at water system circulation wear equipment, even understand some with floating loss of the steam of emptying and contaminate environment.
Summary of the invention
The objective of the invention is, a kind of Noiseless environment friendly matte granulation technology is provided, it can overcome the explosion phenomenon in the shrend process; stop the chemical reaction in the shrend process, reduce noise pollution, and; have simple, the easy to operate advantage of technology, can solve the problem that exists in the matte shrend process.
The objective of the invention is to be achieved through the following technical solutions: Noiseless environment friendly matte granulation technology; molten matte is flowed out by chute; earlier jet to molten matte by air jet system; the gas of ejection will be separated into numerous tiny drops by the molten matte stream that chute flows down; small droplets after above-mentioned gas aloft will disperse simultaneously is cooled to fritting attitude or solid-state copper particle; the copper particle presses cold water to carry out Water Quenching through band in follow-up dropping process again; at last; the copper particle presses cold water to enter further cooling in the water cooling pond with band, and the sand-like matte of output is transported to next procedure by dehydration haulage system.
In order further to realize purpose of the present invention, can also be by the following technical solutions: described air jet system be a distribution showerhead, and distribution showerhead is installed on the chute bottom; Molten matte imports pelletizer earlier through chute, and gas disperses molten matte in pelletizer by shower nozzle, and at the cooling pool internal cooling, the sand-like matte of output is transported to next procedure by dehydration haulage system to the matte after the dispersion after band is pressed the cold water shrend.Install in the cooling pool and stir shower nozzle, the stirring shower nozzle sprays cold water with pressure and stirs heat exchange, and the steam of generation is discharged in the atmosphere by the emptying chimney.Described gas be not with the compressed gas of molten matte reaction, compressed gas is a low-pressure saturated steam.Gaseous tension is 0.2MPa-3.0MPa.The clearing apparatus that install the chute bottom, clearing apparatus is a hydro-cylinder, clearing apparatus can also be pneumatics or electric device.
The principle of above-mentioned technology is as follows: currently used matte granulation method is the high-temperature fusion matte that will be discharged by the copper chute with cold water with pressure to carrying out shrend, owing to the major ingredient of industrial matte is Cu 2S and FeS directly contact meeting with water following reaction take place under high temperature fused state:
1.Cu 2S+2H 2O＝Cu+SO 2(g)+2H 2(g) △G＝354343-315.06T，J
2.FeS+H 2O＝FeO+H 2S (g) △G＝91211.2-123.6T，J
3.3FeS+4H 2O＝Fe 3O 4+3H 2S (g)+H 2(g) △G＝247777-454.1T，J
The inflammable gas H that generates 2S and H 2Also can react with airborne oxygen:
4.2H 2+O 2＝2H 2O △G＝-503921+117.36T，J
5.H 2S+O 2＝2H 2O+SO 2(g) △G＝1125161.3+389.5T，J
More than be heat release, increase-volume reaction, speed of response is exceedingly fast under high-temperature situation, because reaction is violent, the speed that discharges heat energy is exceedingly fast, and system can not will produce violent local heating effectively in the time heat being distributed; Simultaneously, high-temperature fusant contacts with water, can cause water vaporized expanding rapidly.The high pressure gas that moment produces in vaporized expanding and the reaction have little time diffusion, in the process of compression, will produce huge pressure, when this pressure spreads gas at a terrific speed, will produce the phenomenon-blast of high-temperature high-pressure air flow at the abrupt release energy.Blast makes near the noise the operation field surpass 110 decibels, and along with the rising of matte temperature, noise pollution is serious all the more; The shockwave that produces to molten matte and the sand shape matte of cooling curing all have and disperse and broken effect, make it to form the particle of detailed catalogue, cause and collect difficultly, the matte of detailed catalogue even also can be walked by blast air causes material loss and environmental pollution; SO in the reaction product 2Or H 2S can make system's water quality acidifying, and severe corrosion equipment needs to replenish a large amount of alkali and guarantees water quality.
The noiselessness matte granulation technology that the present invention proposes is exactly the chemical reaction that will stop in the shrend process, weakens vaporized expanding, and the generation of stopping to explode reduces noise pollution.After the high-temperature fusion matte is discharged by the copper chute, aloft with before water contacts, adopt low-pressure saturated steam or pressurized gas that molten matte stream is separated into tiny drop, increase the cooling surface area of molten matte, prolong the heat radiation time, just make matte drop surface cure aloft or drop to 1200 ℃, become blank particulate matte to drop into to cool off in the pond of stirring by cold water with pressure and collect.
By the △ G in reaction formula (1), (2), (3) as can be seen, the matte temperature to the direction of reaction and speed influence greatly, along with the reduction of temperature, △ G increases, from thermodynamic (al) angle, the reduction of temperature is unfavorable for the carrying out that react; From the kinetics angle, temperature reduces reaction and can slow down, and even can not produce chemical reaction.Since matte with disperse before water contacts and lower the temperature, can stop the generation of chemical reaction; Fall into mobile water again after matte is disperseed simultaneously, can increase the relative water yield, can reduce the partial vaporization expansion effectively and produce the possibility of blast.
Positively effect of the present invention is: 1, stop the chemical reaction in the shrend process, weaken vaporized expanding, the generation of stopping to explode reduces noise pollution, the decibel of job site can be dropped to below 80 decibels, has optimized operating environment; 2, the sand-like matte quality of output is better, 1-5mm 〉=85%, 200 order≤1%; 3, technology is simple, and is easy to operate, safe and reliable, and facility investment is few.
Description of drawings
Fig. 1 is the process flow sheet of prior art; Fig. 2 is a process flow sheet of the present invention; Fig. 3 is a schematic diagram of the present invention.Number in the figure: 1 first tensimeter, 2 safety valve, 3 relief valve groups, 4 second tensimeters, 5 variable valve, 6 under meters, 7 manual valves, 8 pneumavalves, 9 chutes, 10 clearing apparatus, 11 distribution showerhead 12 are stirred shower nozzle.
Embodiment
Noiseless environment friendly matte granulation technology of the present invention; molten matte is flowed out by chute 9; earlier jet to molten matte by air jet system; the gas of ejection will be separated into numerous tiny drops by the molten matte stream that chute 9 flows down; small droplets after above-mentioned gas aloft will disperse simultaneously is cooled to fritting attitude or solid-state copper particle; the copper particle presses cold water to carry out Water Quenching through band in follow-up dropping process again; at last; the copper particle presses cold water to enter further cooling in the water cooling pond with band, and the sand-like matte of output is transported to next procedure by dehydration haulage system.
Described air jet system can be a distribution showerhead 11, distribution showerhead 11 can be installed on chute 9 bottoms, also can be installed in below, both sides and the top of molten matte stream, but, all should guarantee molten matte with before band presses cold water contact, it is also pre-cooled to be pressed saturation steam or pressurized gas to disperse by band earlier; For guaranteeing the effect of gas dispersion and pre-cooled molten matte; molten matte can import pelletizer earlier through chute 9; gas disperses molten matte in pelletizer by distribution showerhead 11; at the cooling pool internal cooling, the sand-like matte of output is transported to next procedure by dehydration haulage system to matte after the dispersion after band is pressed the cold water shrend.
For accelerating heat exchange and preventing the matte grain combination again of fritting attitude, install in the cooling pool and stir shower nozzle 12, stir shower nozzle 12 and spray cold water with pressure and stir heat exchange, the steam of generation is discharged in the atmosphere by the emptying chimney.
Described gas be not with the compressed gas of molten matte reaction, compressed gas is a low-pressure saturated steam, also can be pressurized air.
Learn through repeated multiple times experiment, when low-pressure saturated steam or compressed-air actuated pressure can be 0.2MPa-3.0MPa, disperse and the effect of pre-cooled molten copper liquid best.
After producing certain hour, Hu Xianxiang can appear hanging in the exit of chute 9, promptly forms and the similar copper post of icicle in chute 9 exits, and influence is produced normally, therefore, the clearing apparatus 10 that can install in chute 9 bottoms, clearing apparatus 10 is hydro-cylinder.When chute 9 exits extension is serious recklessly, but will being hung on the copper post at chute 9 places, the primer fluid cylinder pressure infers, return to normal production.
Usually the process of ordinary production is as follows: after molten matte is discharged by discharge outlet, import in the pelletizer through chute 9, saturation steam or pressurized gas are through relief valve group 3 0.2MPa-1.6MPa that reduces pressure, according to matte Flow-rate adjustment saturation steam or compressed gas flow, for example, when the matte flow is 0.3t/min-10t/min, when the matte temperature is 1150 ℃-1350 ℃, by variable valve 5 saturation steam or compression gas flow are controlled at 500Nm/h-5000Nm/h, finally by distribution showerhead 11 ejections that are installed in copper chute bottom, in pelletizer, molten matte disperseed and pre-cooled; Matte after the dispersion is at the cooling pool internal cooling, stir heat exchange by cold water with pressure in cooling pool, hydraulic pressure should be controlled at 0.1MPa-0.7MPa, and the grain slag ratio should be 5-20, the steam that produces is discharged in the atmosphere by the emptying chimney, and the sand-like matte of output is transported to next procedure by dehydration haulage system.
The present invention not technology contents of detailed description is known technology.

Claims (6)

1, Noiseless environment friendly matte granulation technology; it is characterized in that: molten matte is flowed out by chute (9); earlier jet to molten matte by air jet system; the gas of ejection will be separated into numerous tiny drops by the molten matte stream that chute (9) flow down; small droplets after above-mentioned gas aloft will disperse simultaneously is cooled to fritting attitude or solid-state copper particle; the copper particle presses cold water to carry out Water Quenching through band in the journey of follow-up whereabouts again; at last; the copper particle presses cold water to enter further cooling in the water cooling pond with band, and the sand-like matte of output is transported to next procedure by dehydration haulage system.
2, Noiseless environment friendly matte granulation technology according to claim 1 is characterized in that: described air jet system is distribution showerhead (11), and distribution showerhead (11) is installed on chute (9) bottom; Molten matte imports pelletizer earlier through chute (9), and gas disperses molten matte in pelletizer by shower nozzle, and at the cooling pool internal cooling, the sand-like matte of output is transported to next procedure by dehydration haulage system to the matte after the dispersion after band is pressed the cold water shrend.
3, Noiseless environment friendly matte granulation technology according to claim 2 is characterized in that: install in the cooling pool and stir shower nozzle (12), stir shower nozzle (12) spray cold water with pressure and stir heat exchange, the steam of generation is discharged in the atmosphere by the emptying chimney.
4, according to each described Noiseless environment friendly matte granulation technology in the claim 1,2 or 3, it is characterized in that: described gas be not with the compressed gas of molten matte reaction, compressed gas is a low-pressure saturated steam.
5, Noiseless environment friendly matte granulation technology according to claim 4 is characterized in that: gaseous tension is 0.2MPa-3.0MPa.
6, Noiseless environment friendly matte granulation technology according to claim 5 is characterized in that: the clearing apparatus (10) that install chute (9) bottom, clearing apparatus (10) is a hydro-cylinder.
CN 200810158080 2008-10-29 2008-10-29 Noiseless environment friendly matte granulation technology Active CN101386917B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN 200810158080 CN101386917B (en) 2008-10-29 2008-10-29 Noiseless environment friendly matte granulation technology
DE200910001340 DE102009001340A1 (en) 2008-10-29 2009-03-05 No noise and environmental protection Lech granulation technology
FI20095243A FI20095243A (en) 2008-10-29 2009-03-11 Environmentally friendly noise-free stone granulation technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200810158080 CN101386917B (en) 2008-10-29 2008-10-29 Noiseless environment friendly matte granulation technology

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CN101386917A true CN101386917A (en) 2009-03-18
CN101386917B CN101386917B (en) 2011-02-09

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DE (1) DE102009001340A1 (en)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101705369B (en) * 2009-11-26 2011-01-05 阳谷祥光铜业有限公司 Process and device for smelting copper by pulsation vortex method
CN102296187A (en) * 2011-08-22 2011-12-28 中国瑞林工程技术有限公司 Pneumatic conveying process for copper matte
CN103934461A (en) * 2014-05-15 2014-07-23 云南锡业股份有限公司 Matte granulating technology and device
CN104372175A (en) * 2014-11-14 2015-02-25 江西瑞林稀贵金属科技有限公司 Method and system for treating electronic scraps
CN109022761A (en) * 2018-08-27 2018-12-18 浙江科菲科技股份有限公司 A kind of granulating method of lead copper matte wind quenching water cooling
CN109943673A (en) * 2019-03-22 2019-06-28 北京硕人节能环保技术有限公司 A kind of smelting slag wind mist two-fluid granulated processed technique and device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006206965A (en) * 2005-01-28 2006-08-10 Jipangu Energy:Kk Method and system for producing high purity metal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101705369B (en) * 2009-11-26 2011-01-05 阳谷祥光铜业有限公司 Process and device for smelting copper by pulsation vortex method
CN102296187A (en) * 2011-08-22 2011-12-28 中国瑞林工程技术有限公司 Pneumatic conveying process for copper matte
CN103934461A (en) * 2014-05-15 2014-07-23 云南锡业股份有限公司 Matte granulating technology and device
CN104372175A (en) * 2014-11-14 2015-02-25 江西瑞林稀贵金属科技有限公司 Method and system for treating electronic scraps
CN104372175B (en) * 2014-11-14 2017-02-22 江西瑞林稀贵金属科技有限公司 Method and system for treating electronic scraps
CN109022761A (en) * 2018-08-27 2018-12-18 浙江科菲科技股份有限公司 A kind of granulating method of lead copper matte wind quenching water cooling
CN109943673A (en) * 2019-03-22 2019-06-28 北京硕人节能环保技术有限公司 A kind of smelting slag wind mist two-fluid granulated processed technique and device

Also Published As

Publication number Publication date
DE102009001340A1 (en) 2010-05-27
FI20095243A (en) 2010-04-30
CN101386917B (en) 2011-02-09
FI20095243A0 (en) 2009-03-11

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