CN201785464U - Integrated metallurgical device for direct lead smelting - Google Patents

Integrated metallurgical device for direct lead smelting Download PDF

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Publication number
CN201785464U
CN201785464U CN2010202940822U CN201020294082U CN201785464U CN 201785464 U CN201785464 U CN 201785464U CN 2010202940822 U CN2010202940822 U CN 2010202940822U CN 201020294082 U CN201020294082 U CN 201020294082U CN 201785464 U CN201785464 U CN 201785464U
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China
Prior art keywords
furnace
shaft
slag
metallurgical
stoves
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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.)
Expired - Lifetime
Application number
CN2010202940822U
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Chinese (zh)
Inventor
卢一明
唐成河
杜天贞
蔺公敏
李元香
宾万达
唐海河
李小兵
唐红军
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ANYANG YUBEI GOLD AND LEAD Corp
XINXIANG ZHONGLIAN JINQIAN CO Ltd
JIYUAN WANYANG SMELTING (GROUP) CO Ltd
Original Assignee
ANYANG YUBEI GOLD AND LEAD Corp
XINXIANG ZHONGLIAN JINQIAN CO Ltd
JIYUAN WANYANG SMELTING (GROUP) CO Ltd
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Application filed by ANYANG YUBEI GOLD AND LEAD Corp, XINXIANG ZHONGLIAN JINQIAN CO Ltd, JIYUAN WANYANG SMELTING (GROUP) CO Ltd filed Critical ANYANG YUBEI GOLD AND LEAD Corp
Priority to CN2010202940822U priority Critical patent/CN201785464U/en
Application granted granted Critical
Publication of CN201785464U publication Critical patent/CN201785464U/en
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Abstract

The utility model relates to an integrated metallurgical device for direct lead smelting, which is energy-saving and high-efficiency and comprises three molten pool smelting furnaces which are connected in series. A furnace body of each molten pool smelting furnace consists of a lower furnace body and an upper furnace body integrally, a smoke outlet and a standby charging hole are arranged at the top of the upper furnace body, a burden charging hole and a molten slag charging hole are arranged on the upper side of the lower furnace body, a slag siphon well is arranged at the bottom of the lower furnace body, each furnace body is provided with three rows of air supply outlets, and metal siphon outlets are arranged at bottoms of furnace cylinders. The integrated metallurgical device for direct lead smelting is less in heat loss and high in heat utilization ratio, produces high-concentration sulfur dioxide, and is more beneficial for meeting demands of acid making. Molten hot slag with high lead which is produced through oxidizing melting directly flows into a reducing furnace, and the heat of hot molten slag is fully used. The integrated metallurgical device is less in occupied area, saves investment, less in heat loss, high in heat ratio, fully uses heat energy, saves lots of energy consumption, is small in flue quantity of output and low in harmful contents in flue, and solves the problem of environment pollution more effectively.

Description

Directly refine plumbous integrated metallurgical device
Technical field
The utility model relates to a kind of non-ferrous metal metallurgy reaction unit, particularly a kind of energy-conservation, efficiently directly the refining plumbous integrated metallurgical device.
Background technology
Extensively adopt molten pool melting technology to handle concentrate of lead sulfide ore at present in the world, be characterized in all having adopted with oxygen enrichment or pure oxygen intensified smelting.Compare with traditional smelting process, problem of environmental pollution has obtained basic solution, and plumbous cleaner production becomes a reality.But also there is weak point in these furnaces: furnace charge is required harshness, and oxygen blowing spray gun structure complexity, the life-span is shorter, and reduction ratio is lower, or the like.
Adopt bottom convertor, part to adopt Australia Si Maite stove to handle the sulfuration lead ore in big of lead smelting in China factory, the oxidation lead skim of output gets lead bullion with traditional retailoring of blast furnace after the ingot bar condensation.The heat energy of melt oxidation lead skim fails to utilize complete loss like this.And high lead slag needs with the coke of costliness high lead slag to be melted once more in the blast furnace reduction process, and obtains metallic lead with the coke reduction.In order to reclaim the zinc oxide that exists in the blast-furnace cinder, method commonly used is deposited the slag of blast furnace output with electrothermal front bed simultaneously, reclaims zinc oxide for the fuming furnace volatilization of periodically producing.
The huge waste that above method, heat energy cause, and blast furnace production low concentration sulphur dioxide flue gas recovery difficulty have caused the manufacturer of plumbous smelting and metallargist's great attention, at present, need a kind of plumbous smelting device newly of utility model.
Summary of the invention
At the shortcoming of existing nonferrous metallurgy smelting furnace, the utility model provides a kind of direct refining plumbous integrated metallurgical device, makes the plumbous effect of refining obtain maximum performance.
The utility model comprises three bath smelting furnaces: a stove, two stoves and three stoves; Three bath smelting furnaces are serially connected by twice connection chute and form an integral body; Two connect between the melting slag charging opening that chutes are connected to the slag notch of last bath smelting furnace and a back bath smelting furnace.
Wherein, two stoves are made of cupola well and the shaft that is positioned on the cupola well, described shaft is formed one by bottom shaft and top shaft, shaft top, top is provided with smoke outlet, the top position of bottom shaft is provided with furnace charge charging opening and slag charging opening, is provided with the slag siphonic water-collecting well at the bottom position of bottom shaft, and the slag siphonic water-collecting well is provided with slag notch, the cupola well bottom also is provided with metal siphon outlet, is connected with circulation waterway in the water jacket of full shaft.
The utility model combines the characteristics in each stage of reaction, when oxidizing semlting, adopt the oxygen-enriched air smelting technology, made full use of the oxidation reaction heat of melting self, thermosteresis is few, heat utilization efficiency is high, substantially can reach the level of pyritic smelting, the sulfur dioxide flue gas of output high density more helps satisfying the needs of relieving haperacidity; When retailoring, the high plumbous warm sludge of the fusion of oxidizing semlting output flows directly into reduction furnace, made full use of the hot heat that melts slag, the reductive agent briquet replacing coke, its consumption declines to a great extent, and also can feed natural gas or ature of coal gas simultaneously, can quicken reduction rate, shorten the recovery time, make in the slag lead metal content reduce to minimum level; When fuming volatilization zinc, cancelled electrothermal front bed, hot slag flows directly into fuming furnace from reduction furnace, uses Paniculate coal to make reductive agent and directly adds in the stove, has banned the fine coal system.Compare with other lead smelting process, the utility model floor space is little, reduced investment, heat energy is fully used, and has saved energy consumption in a large number, and three stoves have all adopted oxygen enrichment technology in process of production, the flue gas quantum of output is little, the efficiency of combustion height, oxious component content is low in the flue gas, has more effectively solved environmental pollution problems.
Description of drawings
Fig. 1 is the utility model list furnace structure synoptic diagram.
Fig. 2 is the right pseudosection of single stove shown in Figure 1.
Fig. 3 is that the utility model directly refines plumbous integrated metallurgical device.
Among the figure: 1. cupola well, 2. the bottom shaft, 3. the melting slag charging opening, 4. the furnace charge charging opening, 5. the top shaft, 6. standby charging opening, 7. smoke outlet, 8. tertiary air orifice, 9. overfiren air port, 10. at the bottom of primary air nozzle, 11. gas pipelines, 12. metal siphons outlet, 13. slag siphonic water-collecting wells, 14. slag notches, 15. low furnace bottoms, 16. domatic faces, 17. blast furnaces, 18. furnace foundations, 19. connect chutes, 20. stove bracing frames, 21. support governor levers, 22. 1 stoves, 23. 2 stoves, 24. 3 stoves.
Embodiment
The utility model directly refines plumbous integrated metallurgical device, comprises three bath smelting furnaces, adopts twice connection chute to link together between three bath smelting furnaces and forms a single unit system, one step was finished the oxidation of lead ore concentrate, the fuming process of reduction and zinc, embodiment is as follows:
Referring to Fig. 1-Fig. 3, the utility model directly refines plumbous integrated metallurgical device and is made up of three bath smelting furnaces: a stove 22, two stoves 23 and three stoves 24; Connecting chute 19 by twice between three bath smelting furnaces is serially connected: two connect between the melting slag charging opening 3 that chutes 19 are connected to the slag notch 14 of last bath smelting furnace and a back bath smelting furnace, make three bath smelting furnaces be unified into an integral device.
Wherein, the structure of two stoves 23 is: it is made of cupola well 1 and the shaft that is positioned on the cupola well 1; Bath smelting furnace is erected on the furnace foundation 18, by the stove bracing frame 20 and 21 supports of support governor lever that are erected to be installed in furnace foundation 18 outsides, and utilizes support governor lever 21 to carry out balance adjustment.Described shaft combines one by bottom shaft 2 and top shaft 5; Bottom shaft 2 is made of copper water jacket; Shaft 5 outsides in top are surrounded by the steel water jacket, inner lining refractories; Be connected with circulation waterway in the water jacket of full shaft, for feeding the cooling of recirculated water pump circulation.Shaft 5 tops in top are provided with smoke outlet 7 and standby charging opening 6, and back-end location is provided with furnace charge charging opening 4 (being cold burden and auxiliary material charging opening) and melting slag charging opening 3 (instant heating material charging opening) above bottom shaft 2.Because two charging openings are different with existing bath smelting furnace, be not to be positioned at the body of heater top, with melt in the stove apart from shortening, reduced flue dust when reinforced and flown upward, satisfied environmental protection requirement.Bottom front position at bottom shaft 2 is provided with slag siphonic water-collecting well 13, is provided with slag notch 14 on slag siphonic water-collecting well 13.Also be provided with metal siphon outlet 12 in cupola well 1 bottom.On the two side of described shaft, be equipped with three dispatch air ports: primary air nozzle 10, overfiren air port 9 and tertiary air orifice 8; Primary air nozzle 10 is located at bottom shaft 2 belows, be positioned at melting zone, overfiren air port 9 is located at the top of bottom shaft 2, be positioned at the zone on the bubble level surface, form 1 ° of downward-sloping-60 ° of angle between described overfiren air port 9 medullary rays and sea line, tertiary air orifice 8 is located at the top of top shaft 5.The quantity in each air port is according to the size of reduction furnace and treatment capacity and difference, and standard design is, successively successively decreases from primary air nozzle to tertiary air orifice quantity, and promptly the quantity of primary air nozzle 10 is maximum, and the quantity of overfiren air port 9 is taken second place, the minimum number of tertiary air orifice 8.For general volumetrical reduction furnace, primary air nozzle 10 quantity of each side are 3-50, and overfiren air port 9 is 2-25, and tertiary air orifice 8 is 1-10.At bottom shaft 2 gas pipeline 11 of input combustion gas can be installed also, gas pipeline 11 is inserted in the primary air nozzle 10.The furnace bottom of bottom shaft 2 by blast furnace at the bottom of 17 and low furnace bottom 15 constitute, high and low furnace bottom is linked to each other by 16 transition of domatic face.This height shape of furnace bottom is designed, and the degree of depth of cupola well 1 lower is provided, and has saved the space of eminence metal area, has reduced the volume of cupola well 1, reduces the metal residence time of output object in stove, accelerates heat exchange, keeps cupola well 1 that sufficiently high temperature is arranged.Save energy has also guaranteed the good heat exchange of melt in the stove.
It should be noted that a stove 22 and three stoves 24 can be the bath smelting furnaces identical with two stoves 23, the single unit system that this structure is formed also is a kind of preferred equipment; Also can be different with two stoves 23, as: a stove 22 can adopt top blast stove, low blown converter or flash stove; Three stoves 24 can adopt conventional fuming furnace.Though but adopt which kind of bath smelting furnace, the mode of connection between three stoves is constant, all is two to connect to make it to connect between the melting slag charging opening that chutes are connected to the slag notch of last stove and a back stove and become an integral device.
Be identical bath smelting furnace as embodiment with three stoves below, its smelting process be described:
Lead ore concentrate, leaded furnace charge add from the cold burden charging opening 4 of first bath smelting furnace (i.e. a stove 22), blast at primary air nozzle 10 under the effect of oxygen, be involved in the slag rapidly and melt, form a bubble level more than 10 at primary air nozzle, the lead that reaction produces drips mutual collision, grow up, carry out the plumbous layering of slag and then discharge from siphon separately.The gas that reaction generates rises and enters air that reignition district and overfiren air port 9 the blast generation oxidizing reaction of meeting.
Flow out through slag notch 14 from the rich lead skim of the fusion of a stove 22 outputs, add from the melting slag charging opening 3 of second bath smelting furnace (i.e. two stoves 23), go back raw coal and flux in addition from charging opening 4 addings of two stoves 23 simultaneously through connecting chute 19.Oxygen-rich air blasts in the slag blanket of high-temperature fusion from the primary air nozzle 10 of two stoves 23, and the tiny metal lead button that be reduced this moment collides mutually and grows up rapidly, forms big particle and sinks, and enters cupola well 1 and separates with slag.As required, also can insert gas pipeline 11 in the primary air nozzle 10 of two stoves 23, the combustion gas of sending in the gas pipeline 11 mixes by primary air nozzle 10 with oxygen-rich air in use and feeds in the molten bath simultaneously.Gas line can be installed and remove as required fast.At this moment, send into secondary air from the overfiren air port 9 that is built up in shaft 2 tops in stove, the heat that secondary combustion is produced returns the molten bath again, has effectively reduced energy consumption, saves the fuel of retailoring.The effect of tertiary air orifice 8 is that objectionable impuritiess such as remaining CO in the furnace gas are fully burnt.
The slag of two stoves, 23 outputs adds from the melting slag charging opening 3 of the 3rd bath smelting furnace (i.e. three stoves 24), oxygen-rich air blasts in the slag blanket of high-temperature fusion from the primary air nozzle 10 of three stoves 24, and fully contact with the raw coal of going back that charging opening 4 from three stoves 24 adds, zinc oxide is reduced into metallic zinc and fuming becomes zinc fume to leave melt in the slag, is oxidized to zinc oxide again in flue.The secondary air that overfiren air port 9 is sent makes the CO burning of overflowing in the melt.The effect of tertiary air orifice 8 is also with identical in 23 interior three air-supplies of two stoves.The slag of three stoves, 24 outputs is discharged from slag notch 14, makes other purposes after the shrend.
When a stove 22 and three stoves 24 and three stoves adopted the smelting furnace different with two stoves 23, its technological process was similar, also can reach close effect.
The utility model directly refines plumbous integrated metallurgical device, and its function has obtained optimum combination, and this device makes full use of heat energy, can reach the purpose of continuous processing, comprehensive recovery, energy-saving and emission-reduction, low consumption environment protection.

Claims (10)

1. directly refine plumbous integrated metallurgical device, it is characterized in that, it comprises three bath smelting furnaces: a stove, two stoves and three stoves; Three bath smelting furnaces are serially connected by twice connection chute and form an integral body; Two connect between the melting slag charging opening that chutes are connected to the slag notch of last bath smelting furnace and a back bath smelting furnace;
Wherein, described two stoves are made of cupola well and the shaft that is positioned on the cupola well, described shaft is formed one by bottom shaft and top shaft, shaft top, top is provided with smoke outlet, the top position of bottom shaft is provided with furnace charge charging opening and slag charging opening, is provided with the slag siphonic water-collecting well at the bottom position of bottom shaft, and the slag siphonic water-collecting well is provided with slag notch, the cupola well bottom also is provided with metal siphon outlet, is connected with circulation waterway in the water jacket of full shaft.
2. metallurgical device according to claim 1 is characterized in that: the shaft top, top of described two stoves also is provided with standby charging opening; Described furnace charge charging opening and melting slag charging opening are located at the top back-end location of bottom shaft, and the slag siphonic water-collecting well is located at the bottom front position of bottom shaft; On the two side of described shaft, respectively be equipped with three dispatch air ports: primary air nozzle, overfiren air port and tertiary air orifice; Primary air nozzle is located at shaft below, bottom, is positioned at melting zone, and overfiren air port is located at the middle part of bottom shaft, is positioned at the zone on the bubble level surface, and tertiary air orifice is located at the top of top shaft or the position of smoke outlet below.
3. metallurgical device according to claim 2 is characterized in that: successively successively decrease to tertiary air orifice quantity from primary air nozzle, the primary air nozzle quantity of each side is 3-50, and overfiren air port is 2-25, and tertiary air orifice is 1-10.
4. according to claim 2 or 3 described metallurgical devices, it is characterized in that: form 1 ° of downward-sloping-60 ° of angle between overfiren air port medullary ray and sea line.
5. metallurgical device according to claim 2 is characterized in that: at the bottom of described two stoves shaft the gas pipeline of input combustion gas is installed also, gas pipeline is inserted in the primary air nozzle.
6. metallurgical device according to claim 1 is characterized in that: the furnace bottom of bottom shaft by blast furnace at the bottom of and low furnace bottom constitute, high and low furnace bottom is linked to each other by the transition of domatic face.
7. metallurgical device according to claim 2 is characterized in that: a stove is bath smelting furnaces identical with two stoves with three stoves.
8. metallurgical device according to claim 1 is characterized in that: a stove adopts top blast stove, low blown converter or flash stove.
9. metallurgical device according to claim 1 is characterized in that: three stoves adopt fuming furnace.
10. metallurgical device according to claim 2 is characterized in that: described bottom shaft is made of copper water jacket; Shaft outside, top is surrounded by the steel water jacket, inner lining refractories.
CN2010202940822U 2010-08-17 2010-08-17 Integrated metallurgical device for direct lead smelting Expired - Lifetime CN201785464U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102321808A (en) * 2011-09-28 2012-01-18 长沙有色冶金设计研究院有限公司 Oxygen-enriched side-blown dual-area smelting furnace
CN102374781A (en) * 2010-08-17 2012-03-14 济源市万洋冶炼(集团)有限公司 Direct lead-smelting comprehensive metallurgical device and smelting process
CN102618729A (en) * 2012-03-15 2012-08-01 中南大学 Smelting method and device for molten oxidized lead slag
CN103146936A (en) * 2013-03-25 2013-06-12 湖南金旺铋业股份有限公司 Oxygen-rich redox furnace
CN103555965A (en) * 2013-10-31 2014-02-05 江西瑞林稀贵金属科技有限公司 Double-side blowing smelting equipment
CN111235388A (en) * 2020-02-12 2020-06-05 长沙有色冶金设计研究院有限公司 Novel process for smelting tin by side-top-blown molten pool and smelting furnace

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374781A (en) * 2010-08-17 2012-03-14 济源市万洋冶炼(集团)有限公司 Direct lead-smelting comprehensive metallurgical device and smelting process
CN102374781B (en) * 2010-08-17 2013-08-28 济源市万洋冶炼(集团)有限公司 Direct lead-smelting comprehensive metallurgical device and smelting process
CN102321808A (en) * 2011-09-28 2012-01-18 长沙有色冶金设计研究院有限公司 Oxygen-enriched side-blown dual-area smelting furnace
CN102618729A (en) * 2012-03-15 2012-08-01 中南大学 Smelting method and device for molten oxidized lead slag
CN102618729B (en) * 2012-03-15 2013-10-09 中南大学 Smelting method and device for molten oxidized lead slag
CN103146936A (en) * 2013-03-25 2013-06-12 湖南金旺铋业股份有限公司 Oxygen-rich redox furnace
CN103146936B (en) * 2013-03-25 2014-04-02 湖南金旺铋业股份有限公司 Oxygen-rich redox furnace
CN103555965A (en) * 2013-10-31 2014-02-05 江西瑞林稀贵金属科技有限公司 Double-side blowing smelting equipment
CN111235388A (en) * 2020-02-12 2020-06-05 长沙有色冶金设计研究院有限公司 Novel process for smelting tin by side-top-blown molten pool and smelting furnace

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Granted publication date: 20110406