CN101131304A - Tiltable rotary secondary aluminum smelting furnace - Google Patents

Tiltable rotary secondary aluminum smelting furnace Download PDF

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Publication number
CN101131304A
CN101131304A CNA2007101138625A CN200710113862A CN101131304A CN 101131304 A CN101131304 A CN 101131304A CN A2007101138625 A CNA2007101138625 A CN A2007101138625A CN 200710113862 A CN200710113862 A CN 200710113862A CN 101131304 A CN101131304 A CN 101131304A
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China
Prior art keywords
heater
furnace
fire door
revolution body
circular fire
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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.)
Pending
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CNA2007101138625A
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Chinese (zh)
Inventor
曹新乐
陈丹山
林玉胜
孙波涛
张凤炳
刘怀君
崔德森
刘青江
刘俊东
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Aluminum Corp of China Ltd
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Aluminum Corp of China Ltd
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Application filed by Aluminum Corp of China Ltd filed Critical Aluminum Corp of China Ltd
Priority to CNA2007101138625A priority Critical patent/CN101131304A/en
Publication of CN101131304A publication Critical patent/CN101131304A/en
Pending legal-status Critical Current

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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
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y02P40/125Fuels from renewable energy sources, e.g. waste or biomass

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

This invention relates to a tilting rotary secondary aluminum smelting furnace. It includes roller type rotary furnace body, which is supported on the steel support. The anterior end of rotary furnace is arranged in the sleeve. The anterior end face of the rotary furnace has round furnace opening. The posterior end of rotary furnace connects to power device. The steel support corresponding to the rotary furnace posterior end parts connects to lifting cylinder. The steel support corresponding to the rotary furnace anterior end part connects to supporting shaft. There is round furnace door corresponding to the round furnace opening. There is sealing ring between the round furnace opening and door. The round furnace door is arranged on the roll-over shaft and connects to controlling oil cylinder. The round furnace door has fuel gas combustor and waste air discharging opening. The structure is simple. This invention is convenient. It has low energy dissipation and high producing efficiency.

Description

Tiltable rotary secondary aluminum smelting furnace
Technical field
The present invention relates to a kind of tiltable rotary secondary aluminum smelting furnace, be applicable to the melting secondary aluminium.
Background technology
Along with the fast development and the extensive application of aluminium in the development of the national economy of aluminium industry, the recovery and the utilization of secondary aluminium resource are greatly developed in becoming increasingly conspicuous of primary aluminium resource requirement contradiction, are the only ways of aluminium industrial development.
The general horizontal rectangle molten bath reverberatory furnace that adopts of existing secondary aluminium smelting furnace, liner adopts the refractory brick liner or waters the material feeding liner, with fusing remelted aluminum ingot and high-quality renewable aluminum raw material, it handles aluminium ash, aluminium slag, aluminium bits and comprises the low-quality renewable aluminum raw material ability of ironware relatively poor, and existing secondary aluminium smelting furnace major defect has: (1) energy consumption height.The smelting temperature of general aluminium melting reverberatory furnace is higher, finishes to finish to casting in melting, and furnace body temperature is reduced to minimumly from the highest, and a large amount of valuable heats that scatter and disappear cause energy consumption to increase.(2) iron loss height.The mode of heating of molten aluminium stove is generally the reflection heating; in the heating fusion process; bath surface covers the thick smelting agent of one deck protective effect; the composition of smelting agent is generally chloride, and this chloride has heat-proof quality, and heat transfer rate is slow; therefore; need to improve heating-up temperature and carry out melting, increased energy consumption on the one hand, on the other hand; solid-liquid mixes mutually in the heating process; can not take the continuous stirring measure, cause the aluminum melt upper and lower temperature difference bigger, reach more than 50 ℃; melt at the end in the stove temperature generally at 950-1050 ℃; causing the hot-spot of metal bath to cause scaling loss easily, is example with engine piston and useless casing, and its scaling loss is generally about 5~10%.(3) operating environment is poor, and labour intensity is big.Reflective aluminium melting furnace, in normal course of operation, fume emission is united discharging by inner flue gas of the stove flue collector and fire door flue gas auxillary flue.At the reinforced igniting initial stage, because secondary aluminium source complicated (mainly being engine components), a large amount of organic matter volatilizations form strong smog, contaminated environment; In addition, after fusing finishes, open fire door and carry out in the process of refining, form white smoke based on suspended particulate substance, this smog is bigger to the human body hazard ratio, after refining finishes, last procedure before casting-skim, general employing is manually skimmed or semi-mechanization is skimmed, strong hyperthermia radiation, serious dust from flying has worsened operating environment, has increased labour intensity.(4) can't eliminate the pollution of iron and other high-melting-point objectionable impurities.Because smelting temperature is higher in the stove, 950-1050 ℃, the iron in the renewable aluminum raw material and other refractory metal fusing in the aluminum melt under the high melt condition for a long time, have reduced the grade of aluminum melt.The ability of (5) continuous melting renewable aluminum raw material, labor productivity is low.General aluminium melting reverberatory furnace, fusing, melting also will be prepared burden after finishing, refining is skimmed, casting process, and the production cycle is relatively long, causes the waste of equipment, has reduced labor productivity.
Summary of the invention
The object of the present invention is to provide a kind of tiltable rotary secondary aluminum smelting furnace, rational in infrastructure, easy and simple to handle, labour intensity is little, and energy consumption is low, the production efficiency height, and iron loss is low, and aluminum melt is of high grade.
Tiltable rotary secondary aluminum smelting furnace of the present invention, the revolution body of heater that drum-type is arranged, the revolution body of heater is erected on the steelframe, the front end of revolution body of heater is installed in the axle sleeve, the front end face of revolution body of heater is provided with circular fire door, the rear end of revolution body of heater connects power set, the steelframe of corresponding revolution body of heater rearward end is connected on the hoist cylinder, the steelframe of corresponding revolution body of heater leading section is connected on the back shaft of erecting, correspondingly with circular fire door be provided with circular fire door, be provided with the sealing ring of mutual embedding assembling between circular fire door and circular fire door, circular fire door is arranged on the trip shaft of steelframe and connects the control oil cylinder, and circular fire door is provided with gas burner and waste gas escape orifice.
The charging of revolution body of heater, discharging drive steelframe by hoist cylinder and realize, drive the rotation of turning round body of heater by line shaft, and in the running, by the sealing that compresses of control oil cylinder, the back shaft of revolution body of heater front end is erected by foundation structure between circular fire door and circular fire door.The sealing ring of the mutual embedding assembling between circular fire door and circular fire door is meant that one protruding one is recessed, plugs each other, and realizes curve-seal, and convenient one moving one quiet rotation cooperates again, and the revolution body of heater rotates, and circular fire door is static.
Establish the castable refractory furnace lining in the revolution body of heater, strengthen resistance to slag and corrosion resistance.
Establish agitating fins in revolution on the inboard wall of furnace body, along with the rotation of revolution body of heater realizes the stirring of material, can be circumferentially on the furnace wall evenly distribution 2-5 at interval, general 3 get final product.
The power set of the line shaft that revolution body of heater rear end connects can have a variety of, as motor, hydraulic motor etc., generally connect by reductor, shaft coupling, and power set are set directly on the steelframe, can be in company with the steelframe lifting.
On the waste gas escape orifice, establish gas skirt, burnt gas can be incorporated into the gas cleaning recovery system.
The cross section design of rotary furnace intracoelomic cavity is regular hexagon, and this regular hexagon mechanical structure is reasonable, firm, difficult drop-off under the impact of solid charge.
Among the present invention, form according to the equipped hydraulic system of instructions for use, charging system, combustion system, system for cleaning fume and automatic control system, air fuel gas device and PLC automaton as small rail car intermittent feeding device, advanced person, realize control automatically, these auxiliary equipment are the conventional ripening technology, directly use and get final product, repeat no more.
During melting, with low-grade aluminium scraps such as aluminium ash, aluminium slag, aluminium bits with deslagging agent, covering slag agent add the revolution body of heater in, close circular fire door, the furnace wall, top in the revolution body of heater is directly sprayed in igniting heating, flame, and the raw material that always is in the bottom directly contacts with the furnace wall of heat, realize conduction heat transfer, speed of melting is fast, can finish fusion process when temperature reaches 580-650 ℃, realizes low smelting heat.Stop heating, open circular fire door, start hoist cylinder the revolution body of heater is tilted gradually, aluminum melt is entered with the chute guiding leave standstill smelting furnace, through after the batching refining, produce intermediate alloy again, therefore, can improve the usefulness and the production capacity that leave standstill refining furnace greatly.Because of 580-650 ℃ temperature is lower, unfused iron and other harmful metal impurity and slag are together poured the slag case into, obtain high-grade aluminum melt.Because behind the formation melt, be heated furnace charge and aluminum melt in circular body of heater bottom, be in all the time under the covering protection of coverture, directly do not contact flame, significantly reduced the probability of burning scaling loss, reduce iron loss.
The molten aluminum technology of molten aluminium stove of tiltable rotary secondary aluminum of the present invention and common horizontal rectangular reflection molten bath relatively sees Table 1.
When table 1, melting dead head, useless piston, useless casing aluminium and common reflection smelting furnace technical indicator contrast table
Index Speed of melting t/h Gas consumption Nm 3/t·AI Aluminium loss % Homogeneity of ingredients Flue-gas temperature ℃ Temperature of aluminum liquid ℃ Solvent adding amount kg/tAl
Reverberatory furnace 2.5 80 5.00 Deviation is big 750 725 45
Rotary furnace 3.3 65 3.52 Evenly 750 580 20
Relatively +0.8 -15 -1.48 - - -145 -25
Concrete advantage is as follows:
(1) energy-conservation.The molten aluminium stove of tiltable rotary secondary aluminum of the present invention in fusing at the end, aluminum melt temperature≤650 ℃, the heat exchange method advanced person, the rate of heat exchange height, energy conservation and consumption reduction effects is obvious.After the molten aluminium stove of tiltable rotary secondary aluminum adopted and melts low temperature at a high speed and go out the aluminium new technology, it was 65Nm that natural gas (is example with fusing engine piston, useless casing) consumes 3/ tAl, general aluminium melting reverberatory furnace gas consumption is 80Nm 3/ tAl, energy-conservation more than 18.75%.
(2) oxidization burning loss of minimizing aluminium.Tiltable rotary secondary aluminum of the present invention melts the aluminium stove, stir and follow the metal molten overall process from start to finish, metal bath is under the covering of smelting agent and slag, bottom and body of heater in the body of heater circular drum keep relative motion, directly do not contact flame, significantly reduce the probability of burning scaling loss, reduced iron loss.
(3) aluminum melt is of high grade.The molten aluminium furnace body of tiltable rotary secondary aluminum of the present invention adopts the drum-type design, can realize that melting low temperature goes out aluminium at a high speed, burn-off rate is fast, smelting temperature is low, the probability that reduced the fusing of refractory metals such as iron, dissolves, thereby obtain not by the aluminium alloy melt of high-melting-point contaminating impurities such as iron, aluminum melt is of high grade.
(4) production efficiency height.Tiltable rotary secondary aluminum of the present invention melts aluminium stove, melting efficiency height, production efficiency height.
(5) low smelting heat.Follow the metal molten overall process from start to finish owing to stir, the melt heat absorption is not subjected to the smelting agent of bath surface covering and the influence of slag, and metal bath absorbs heat and uniformity of temperature profile, reaches the homogenising of metal bath temperature rapidly, realizes low smelting heat.
(6) rational in infrastructure, easy and simple to handle, labour intensity is little, good operational environment.
Description of drawings
Fig. 1, one embodiment of the invention structural representation.
The left side view of Fig. 2, Fig. 1.
Among the figure: 1, fixed pedestal 2, fixed mount 3, trip shaft 4, steelframe 5, revolution body of heater 6, hoist cylinder 7, shaft coupling 8, hydraulic motor 9, circular fire door 10, gas burner 11, waste gas escape orifice.
The specific embodiment
The invention will be further described in conjunction with the foregoing description accompanying drawing.
As shown in the figure, tiltable rotary secondary aluminum smelting furnace of the present invention, the revolution body of heater 5 that drum-type is arranged, the cross section of revolution body of heater 5 inner chambers is regular hexagon, be provided with the castable refractory furnace lining in the revolution body of heater 5, revolution body of heater 5 inwalls are provided with agitating fins, revolution body of heater 5 is erected on the steelframe 4, the front end of revolution body of heater 5 is installed in the axle sleeve, the front end face of revolution body of heater 5 is provided with circular fire door, the rear end of revolution body of heater 5 connects line shaft, line shaft is the line shaft of hydraulic motor 8, connect by shaft coupling 7, hydraulic motor also is arranged on the steelframe 4, the steelframe of corresponding revolution body of heater 5 rearward end is connected on the hoist cylinder 6, the steelframe of corresponding revolution body of heater 5 leading sections is connected on the back shaft of being erected by fixed pedestal 1 and fixed mount 2, correspondingly with circular fire door be provided with circular fire door 9, circular fire door and 9 at circular fire door are provided with the sealing ring of mutual embedding assembling, circular fire door 9 is arranged on the trip shaft 3 of steelframe and connects the control oil cylinder, circular fire door 9 is provided with gas burner 10 and waste gas escape orifice 11, can establish gas skirt on the waste gas escape orifice 11.
During melting, with low-grade aluminium scraps such as aluminium ash, aluminium slag, aluminium bits with deslagging agent, covering slag agent add the revolution body of heater 5 in, the start-up control oil cylinder is closed circular fire door 9, igniting adds thermalization, flame directly sprays the furnace wall, top in the revolution body of heater 5, the raw material that always is in the bottom directly contacts with the furnace wall of heat, realizes conduction heat transfer, realizes melting at a high speed low smelting heat.All after the fusing, stop heating, open circular fire door 9, start hoist cylinder 6 revolution body of heater 5 is tilted gradually, aluminum melt is poured out with the chute guiding, unfused iron and other harmful metal impurity and slag are together poured the slag case into, obtain high-grade aluminum melt.

Claims (6)

1. tiltable rotary secondary aluminum smelting furnace, it is characterized in that having the revolution body of heater of drum-type, the revolution body of heater is erected on the steelframe, the front end of revolution body of heater is installed in the axle sleeve, the front end face of revolution body of heater is provided with circular fire door, the rear end of revolution body of heater connects power set, the steelframe of corresponding revolution body of heater rearward end is connected on the hoist cylinder, the steelframe of corresponding revolution body of heater leading section is connected on the back shaft of erecting, correspondingly with circular fire door be provided with circular fire door, be provided with the sealing ring of mutual embedding assembling between circular fire door and circular fire door, circular fire door is arranged on the trip shaft of steelframe and connects the control oil cylinder, and circular fire door is provided with gas burner and waste gas escape orifice.
2. tiltable rotary secondary aluminum smelting furnace according to claim 1 is characterized in that turning round and is provided with the castable refractory furnace lining in the body of heater.
3. tiltable rotary secondary aluminum smelting furnace according to claim 1 is characterized in that turning round inboard wall of furnace body and is provided with agitating fins.
4. tiltable rotary secondary aluminum smelting furnace according to claim 1, the power set that it is characterized in that turning round the line shaft that the body of heater rear end connects are arranged on the steelframe.
5. tiltable rotary secondary aluminum smelting furnace according to claim 1 is characterized in that the waste gas escape orifice is provided with gas skirt.
6. according to the described tiltable rotary secondary aluminum smelting furnace of the arbitrary claim of claim 1-5, it is characterized in that the cross section of rotary furnace intracoelomic cavity is regular hexagon.
CNA2007101138625A 2007-09-26 2007-09-26 Tiltable rotary secondary aluminum smelting furnace Pending CN101131304A (en)

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CNA2007101138625A CN101131304A (en) 2007-09-26 2007-09-26 Tiltable rotary secondary aluminum smelting furnace

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Application Number Priority Date Filing Date Title
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694355B (en) * 2009-09-24 2011-09-14 苏州新长光热能科技有限公司 Furnace rotating support structure
CN102538445A (en) * 2010-11-11 2012-07-04 气体产品与化学公司 Selective adjustment of heat flux for increased uniformity of heating a charge material in a tilt rotary furnace
CN103045867A (en) * 2012-10-19 2013-04-17 保定安保能冶金设备有限公司 Automatic melting ferro-aluminium chamber furnace of recycled aluminium
CN103453776A (en) * 2013-08-29 2013-12-18 江苏高皓工业炉有限公司 Roller furnace
CN103898337A (en) * 2012-12-31 2014-07-02 保定安保能冶金设备有限公司 Automatic-melting aluminium-iron separation process of regenerated aluminium
CN104329936A (en) * 2014-11-03 2015-02-04 溧阳市超强链条制造有限公司 Inlet pipe blockage-preventing device of tilting drum type resistance rotary furnace
CN105444564A (en) * 2015-12-17 2016-03-30 江苏海光金属有限公司 Rotary furnace for waste aluminum and aluminum ash regeneration system
CN105627299A (en) * 2016-03-17 2016-06-01 河南省天利工业炉有限公司 Single-chamber regenerating furnace for forging heating
CN106595292A (en) * 2016-12-19 2017-04-26 湖南顶立科技有限公司 Rotary furnace
CN106893794A (en) * 2015-12-17 2017-06-27 参化(上海)能源科技有限公司 Dedusting ash of stainless steel is smelted into the method and device of chromium ferronickel water using rotary furnace
CN110512085A (en) * 2019-09-09 2019-11-29 斯默因热能科技(杭州)有限公司 A kind of novel aluminum ash recovery furnace
CN110906732A (en) * 2019-11-21 2020-03-24 洛阳焱华加热科技有限公司 Titanium white powder experiment rotary furnace
CN111380356A (en) * 2018-12-27 2020-07-07 苏州啸波科技有限公司 High efficiency rotary furnace
CN112161471A (en) * 2020-09-27 2021-01-01 巢湖市浩博铜业有限公司 Copper bar processing is with useless copper melting device
CN112642844A (en) * 2021-01-21 2021-04-13 洛阳炬星窑炉有限公司 Filler recovery device and recovery method for thermosetting plastic waste
CN112811836A (en) * 2021-01-19 2021-05-18 合肥德谦顺建材有限公司 Production and preparation process of cement
CN113251796A (en) * 2021-05-25 2021-08-13 安徽汉和电气有限公司 Tilting-type crucible melting resistance furnace with unloading function
CN114334503A (en) * 2021-12-24 2022-04-12 佛山市诺普材料科技有限公司 Method for preparing silver tin oxide electrical contact material by low-temperature homogenization and material thereof

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694355B (en) * 2009-09-24 2011-09-14 苏州新长光热能科技有限公司 Furnace rotating support structure
CN102538445A (en) * 2010-11-11 2012-07-04 气体产品与化学公司 Selective adjustment of heat flux for increased uniformity of heating a charge material in a tilt rotary furnace
CN102538445B (en) * 2010-11-11 2014-09-24 气体产品与化学公司 Selective adjustment of heat flux for increased uniformity of heating a charge material in a tilt rotary furnace
CN103045867A (en) * 2012-10-19 2013-04-17 保定安保能冶金设备有限公司 Automatic melting ferro-aluminium chamber furnace of recycled aluminium
CN103045867B (en) * 2012-10-19 2015-12-16 保定安保能冶金设备有限公司 Secondary aluminum melts ferro-aluminum parting furnace automatically
CN103898337B (en) * 2012-12-31 2016-08-24 保定安保能冶金设备有限公司 Secondary aluminium melts ferro-aluminum separating technology automatically
CN103898337A (en) * 2012-12-31 2014-07-02 保定安保能冶金设备有限公司 Automatic-melting aluminium-iron separation process of regenerated aluminium
CN103453776A (en) * 2013-08-29 2013-12-18 江苏高皓工业炉有限公司 Roller furnace
CN104329936A (en) * 2014-11-03 2015-02-04 溧阳市超强链条制造有限公司 Inlet pipe blockage-preventing device of tilting drum type resistance rotary furnace
CN104329936B (en) * 2014-11-03 2016-04-06 溧阳市超强链条制造有限公司 Can inclined drum type resistance rotary furnace inlet tube anti-block apparatus
CN105444564A (en) * 2015-12-17 2016-03-30 江苏海光金属有限公司 Rotary furnace for waste aluminum and aluminum ash regeneration system
CN106893794B (en) * 2015-12-17 2019-07-02 参化(上海)能源科技有限公司 Using rotary furnace by dedusting ash of stainless steel smelting at the method and device of chromium ferronickel water
CN106893794A (en) * 2015-12-17 2017-06-27 参化(上海)能源科技有限公司 Dedusting ash of stainless steel is smelted into the method and device of chromium ferronickel water using rotary furnace
CN105627299A (en) * 2016-03-17 2016-06-01 河南省天利工业炉有限公司 Single-chamber regenerating furnace for forging heating
CN106595292A (en) * 2016-12-19 2017-04-26 湖南顶立科技有限公司 Rotary furnace
CN106595292B (en) * 2016-12-19 2019-05-14 湖南顶立科技有限公司 A kind of rotary furnace
CN111380356A (en) * 2018-12-27 2020-07-07 苏州啸波科技有限公司 High efficiency rotary furnace
CN110512085A (en) * 2019-09-09 2019-11-29 斯默因热能科技(杭州)有限公司 A kind of novel aluminum ash recovery furnace
CN110906732A (en) * 2019-11-21 2020-03-24 洛阳焱华加热科技有限公司 Titanium white powder experiment rotary furnace
CN112161471A (en) * 2020-09-27 2021-01-01 巢湖市浩博铜业有限公司 Copper bar processing is with useless copper melting device
CN112811836A (en) * 2021-01-19 2021-05-18 合肥德谦顺建材有限公司 Production and preparation process of cement
CN112642844A (en) * 2021-01-21 2021-04-13 洛阳炬星窑炉有限公司 Filler recovery device and recovery method for thermosetting plastic waste
CN113251796A (en) * 2021-05-25 2021-08-13 安徽汉和电气有限公司 Tilting-type crucible melting resistance furnace with unloading function
CN114334503A (en) * 2021-12-24 2022-04-12 佛山市诺普材料科技有限公司 Method for preparing silver tin oxide electrical contact material by low-temperature homogenization and material thereof
CN114334503B (en) * 2021-12-24 2022-11-15 佛山市诺普材料科技有限公司 Method for preparing silver tin oxide electrical contact material by low-temperature homogenization and material thereof

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