CN203820871U - Lead smelting equipment adopting oxygen enrichment top-blown smelting and liquid high-lead slag side-blown direct reduction - Google Patents

Lead smelting equipment adopting oxygen enrichment top-blown smelting and liquid high-lead slag side-blown direct reduction Download PDF

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Publication number
CN203820871U
CN203820871U CN201420243164.2U CN201420243164U CN203820871U CN 203820871 U CN203820871 U CN 203820871U CN 201420243164 U CN201420243164 U CN 201420243164U CN 203820871 U CN203820871 U CN 203820871U
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blown
lead
furnace
oxygen
outlet
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CN201420243164.2U
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Inventor
王忠实
沈立俊
邢国华
孙成余
邓兆磊
贾著红
陈学刚
保自坤
李炬
蒋荣生
黎敏
庄福礼
俞兵
杨伟
马绍斌
王勇
张成江
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China ENFI Engineering Corp
Yunnan Chihong Zinc and Germanium Co Ltd
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China ENFI Engineering Corp
Yunnan Chihong Zinc and Germanium Co Ltd
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Abstract

The utility model discloses lead smelting equipment adopting oxygen enrichment top-blown smelting and liquid high-lead slag side-blown direct reduction. The lead smelting equipment comprises an oxygen enrichment top-blown smelting furnace and a liquid high-lead slag side-blown reduction furnace, wherein the oxygen enrichment top-blown smelting furnace comprises a top-blown furnace body and a top-blown spray gun for spraying oxygen-containing air into the furnace body from the top of the top-blow furnace body, and the top-blown furnace body comprises a top-blown furnace charging port, a top-blown furnace flue gas outlet, a molten high-lead slag outlet and a primary lead bullion outlet; and the liquid high-lead slag side-blown reduction furnace comprises a side-blown furnace body and a side-blown spray gun for spraying fuel and oxygen-containing air into the side-blown furnace body from the side surface of the side-blown furnace body, and the side-blown furnace body comprises a side-blown furnace charging port, a side-blown flue gas outlet, a molten high-lead slag inlet connected with a molten high-lead slag outlet, a secondary lead bullion outlet and a side-blow furnace slag outlet. According to the lead smelting equipment, the smelting is performed through oxygen top blowing, the liquid high-lead slag reduction is performed through side blowing, so that the energy consumption and the cost are low, the environmental performance is good, and the metal recovery rate is high.

Description

Oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refines plumbous equipment
Technical field
The utility model relates to technical field of non-ferrous metallurgy, relates to particularly the plumbous equipment of a kind of refining, more specifically, relates to a kind of oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction and refines plumbous equipment.
Background technology
China is the plumbous production and consumption of the first in the world big country, and within 2012, plumbous output reaches 464.6 ten thousand tons, and consumption is 4,510,000 tons, China Ye Shi lead ore resource-starved country, within 2012, ore deposit is plumbous leaded only 283.8 ten thousand tons, far can not meet the need of production of lead smelting in China, and most of leady raw materials needs import.Traditional refining splicer skill is sintering-retailoring of blast furnace, but exists energy consumption high, with serious pollution shortcoming.Oxygen bottom blowing oxidation-blast furnace reduction process (SKS lead smelting process) has also been proposed in correlation technique, and base husband Saite method etc.High lead slag-blast furnace process in correlation technique, need high lead slag after melting cooling, utilize casting slag machine casting slag, utilize blast furnace reduction, thereby energy consumption is high, metal direct recovery rate is low, blast furnace environment is poor, and blast furnace production and application coke, has the shortcoming that cost is high.
Utility model content
The utility model is intended to solve the problem in correlation technique.
For this reason, an object of the present utility model is to propose a kind of oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction and refines plumbous equipment, this refines plumbous equipment and carries out melting by oxygen top blown, by side-blown, carry out liquid high lead dross reduction, thereby energy consumption and cost are low, good environmental protection, metal recovery rate is high.
According to oxygen-enriched top blowing melting of the present utility model-liquid high lead dross side-blown direct-reduction, refine plumbous equipment, comprise: oxygen-enriched top blowing smelting furnace, described oxygen-enriched top blowing smelting furnace has top blast furnace body and in described body of heater, sprays into the top-blown spray gun containing oxygen air from described top blast furnace body top, and described top blast furnace body has top blast stove charging opening, top blast stove smoke outlet, the outlet of melting high lead slag and a lead bullion outlet; With liquid high lead dross side-blown reduction stove, described liquid high lead dross side-blown reduction stove and accessory have side-blown converter body of heater and from described side-blown converter body of heater side to described side-blown converter body of heater in spray into fuel and containing the side-blown spray gun of oxygen air, described side-blown converter body of heater has side-blown converter charging opening, side-blown converter smoke outlet, exports with described melting high lead slag melting high lead slag entrance, the outlet of secondary lead bullion and the side-blown converter slag notch being connected.
According to oxygen-enriched top blowing melting of the present utility model-liquid high lead dross side-blown direct-reduction, refine plumbous equipment, utilize oxygen-enriched top blowing smelting furnace to lead-containing material, such as lead ore concentrate etc., carry out top blow smelting, the melting high lead slag obtaining is sent in liquid high lead dross side-blown reduction stove and is carried out side-blown reduction with molten state, without by the first cooling casting slag of high lead slag (or being called rich lead skim), after the smelting reduction that heats up again, so heat-energy losses is little, Energy Intensity Reduction; In addition, because the melting high lead slag to hot directly carries out retailoring, so comprehensive energy consumption further declines.Therefore,, according to the plumbous device energy conservation environmental protection of the refining of the utility model embodiment, Energy Intensity Reduction, metal recovery rate is high.
In embodiment more of the present utility model, refine plumbous equipment and also comprise fuming furnace, described fuming furnace has fuming furnace body of heater, and described fuming furnace body of heater has warm sludge mouth, exhanst gas outlet and slag notch, and described warm sludge mouth is connected with described side-blown converter slag notch.
In further embodiment of the present utility model, refine plumbous equipment and also comprise electrothermal front bed, described electrothermal front bed has external crucible body of heater and is inserted into the electrode in described external crucible body of heater, and described external crucible body of heater has the reduced blast furnace entrance being connected with described side-blown converter slag notch and the external crucible slag notch being connected with described warm sludge mouth.
Preferably, described melting high lead slag outlet is connected by the first chute with described melting high lead slag entrance, and described side-blown converter slag notch is connected by the second chute with described reduced blast furnace entrance, and described external crucible slag notch is connected by the 3rd chute with described warm sludge mouth.
In embodiment more of the present utility model, refine plumbous equipment and also comprise the first waste heat boiler, first surface water cooler and the first bagroom, the inlet mouth of described the first waste heat boiler is connected with described exhanst gas outlet, the entrance of described first surface water cooler is connected with the air outlet of described the first waste heat boiler, and described the first bagroom is connected with the outlet of described first surface water cooler.
In embodiment more of the present utility model, refine plumbous equipment and also comprise the second waste heat boiler, second surface water cooler and the second bagroom, the inlet mouth of described the second waste heat boiler is connected with described side-blown converter smoke outlet, the entrance of described second surface water cooler is connected with the air outlet of described the second waste heat boiler, and described the second bagroom is connected with the outlet of described second surface water cooler.
In embodiment more of the present utility model, refine plumbous equipment and also comprise the 3rd waste heat boiler and electric precipitator, the inlet mouth of described the 3rd waste heat boiler is connected with described top blast stove smoke outlet, described the 3rd air outlet of waste heat boiler and the entrance of described electric precipitator are connected, and the outlet of described electric precipitator is connected with acid making system.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of the plumbous equipment of the refining of the utility model embodiment.
Fig. 2 is according to the schematic flow sheet of the refining splicer skill of the utility model embodiment.
Reference numeral:
Oxygen-enriched top blowing smelting furnace 1, top blast furnace body 11, top-blown spray gun 12, top blast stove charging opening 110, top blast stove smoke outlet 111,112, lead bullion outlets 113 of melting high lead slag outlet,
Liquid high lead dross side-blown reduction stove 2, side-blown converter body of heater 21, side-blown spray gun 22, side-blown converter charging opening 210, side-blown converter smoke outlet 211, melting high lead slag entrance 212, secondary lead bullion outlet 213, side-blown converter slag notch 214,
Electrothermal front bed 3, external crucible body of heater 31, electrode 32, reduced blast furnace entrance 310, external crucible slag notch 311,
Fuming furnace 4, fuming furnace body of heater 41, warm sludge mouth 410, exhanst gas outlet 411, fine coal air entrance 42, cold burden leached mud opening for feed 412, slag notch 413, the first chute 5, the second chute 6, the three chutes 7
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to accompanying drawing, describe according to the plumbous equipment of the refining of the utility model embodiment, according to the plumbous equipment of the refining of the utility model embodiment, also can be called oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction and refine plumbous equipment
According to the plumbous equipment of the refining of the utility model embodiment, mainly comprise oxygen-enriched top blowing smelting furnace and liquid high lead dross side-blown reduction stove.
Oxygen-enriched top blowing smelting furnace 1 there is top blast furnace body 11 and from top blast furnace body 11 tops to body of heater in spray into the top-blown spray gun 12 containing oxygen air, top blast furnace body 11 has top blast stove charging opening 110, top blast stove smoke outlet 111,112 and lead bullion outlets 113 of melting high lead slag outlet.
Liquid high lead dross side-blown reduction stove 2 there is side-blown converter body of heater 21 and from side-blown converter body of heater 21 sides to side-blown converter body of heater 21 in spray into fuel and containing the side-blown spray gun 22 of oxygen air, side-blown converter body of heater 21 has side-blown converter charging opening 210, side-blown converter smoke outlet 211, exports the 112 melting high lead slag entrances 212 that are connected, the outlet 213 of secondary lead bullion and side-blown converter slag notch 214 with melting high lead slag.
According to the plumbous equipment of the refining of the utility model embodiment, utilize 1 pair of lead-containing material of oxygen-enriched top blowing smelting furnace, such as lead ore concentrate etc., carry out top blow smelting, the melting high lead slag obtaining is sent in liquid high lead dross side-blown reduction stove 2 and is carried out side-blown reduction with molten state, without by the first cooling casting slag of high lead slag (or being called rich lead skim), after the smelting reduction that heats up again, so heat-energy losses is little, Energy Intensity Reduction; In addition, because the melting high lead slag to hot directly carries out retailoring, so comprehensive energy consumption further declines.Therefore,, according to the plumbous device energy conservation environmental protection of the refining of the utility model embodiment, Energy Intensity Reduction, metal recovery rate is high.
Below with reference to Fig. 1, describe according to the plumbous equipment of the refining of the utility model specific embodiment.
As shown in Figure 1, according to the plumbous equipment of the refining of the utility model specific embodiment, also comprise oxygen-enriched top blowing smelting furnace 1, liquid high lead dross side-blown reduction stove 2, electrothermal front bed 3 and fuming furnace 4.Oxygen-enriched top blowing smelting furnace 1 and liquid high lead dross side-blown reduction stove 2 and electrothermal front bed 3 and the fuming furnace 4 for refining plumbous warm sludge, processed, formed the follow-up harmless treatment of a set of lead smelting slag and the comprehensive complete process reclaiming.
Oxygen-enriched top blowing smelting furnace 1 there is top blast furnace body 11 and from top blast furnace body 11 tops to body of heater in spray into the top-blown spray gun containing oxygen air, top blast furnace body 11 has top blast stove charging opening 110, top blast stove smoke outlet 111,112 and lead bullion outlets 113 of melting high lead slag outlet.
Liquid high lead dross side-blown reduction stove 2 there is side-blown converter body of heater 21 and from side-blown converter body of heater 21 sides to side-blown converter body of heater 21 in spray into fuel and containing the side-blown spray gun 22 of oxygen air, side-blown converter body of heater 21 has side-blown converter charging opening 210, side-blown converter smoke outlet 211, melting high lead slag entrance 212, the outlet 213 of secondary lead bullion and side-blown converter slag notch 214.
Electrothermal front bed 3 has external crucible body of heater 31 and is inserted into the electrode 32 in external crucible body of heater 31, and external crucible body of heater 31 has reduced blast furnace entrance 310 and external crucible slag notch 311.The outlet 112 of melting high lead slag is connected with melting high lead slag entrance 212 by the first chute 5, and side-blown converter slag notch 214 is connected by the second chute 6 with reduced blast furnace entrance 310, and external crucible slag notch 311 is connected by the 3rd chute 7 with warm sludge mouth 410.Fuming furnace 4 has fuming furnace body of heater 41, and fuming furnace body of heater 41 has fine coal air entrance 42, warm sludge mouth 410, cold burden leached mud opening for feed 412, exhanst gas outlet 411 and slag notch 413.
According to the plumbous equipment of the refining of this embodiment of the utility model, the melting high lead slag of discharging from the melting high lead slag outlet 112 of oxygen-enriched top blowing smelting furnace 1 is sent in liquid high lead dross side-blown reduction stove 2 and is carried out side-blown reduction melting by the first chute 5, the reduced blast furnace obtaining is entered and in electrothermal front bed 3, is carried out temperature raising and clarification by the second chute 6, further separation of lead or matte, and coordinate the activity duration that reduction furnace 2 and fuming furnace 4 are produced simultaneously.Reduced blast furnace Yu Xin factory leached mud after temperature raising and clarification successively enters fuming furnace 4, carries out retailoring, volatilization, with flue dust form, further reclaims zinc in slag, dissipated metal and remaining lead, silver and realizes the harmless treatment of slag.
In embodiment more of the present utility model, the plumbous equipment of described refining also comprises waste heat boiler, surface cooler, bagroom and electric precipitator.Wherein, waste heat boiler comprises the first waste heat boiler, the second waste heat boiler and the 3rd waste heat boiler, and surface cooler comprises first surface water cooler and second surface water cooler, and bagroom comprises the first bagroom and the second bagroom.
The inlet mouth of described the first waste heat boiler is connected with described exhanst gas outlet 411, and the entrance of described first surface water cooler is connected with the air outlet of described the first waste heat boiler, and described the first bagroom is connected with the outlet of described first surface water cooler.
The inlet mouth of described the second waste heat boiler is connected with described side-blown converter smoke outlet 211, and the entrance of described second surface water cooler is connected with the air outlet of described the second waste heat boiler, and described the second bagroom is connected with the outlet of described second surface water cooler.
The inlet mouth of described the 3rd waste heat boiler is connected with described top blast stove smoke outlet 111, and described the 3rd air outlet of waste heat boiler and the entrance of described electric precipitator are connected, and the outlet of described electric precipitator is connected with acid making system.
Thus, according to the plumbous equipment of the refining of the utility model embodiment, the high sulfur dioxide flue gas of sulfur dioxide concentration of discharging from the top blast stove smoke outlet 111 of oxygen-enriched top blowing smelting furnace 1 passes through waste heat waste heat boiler, electric precipitator recovered flue gas, dedusting Hou Song acid plant produces sulfuric acid, and the dust that dedusting obtains returns to oxygen-enriched top blowing smelting furnace 1.
The SO 2 from fume concentration of discharging from the side-blown converter smoke outlet 211 of liquid high lead dross side-blown reduction stove 2 is lower, waste heat in waste heat boiler, surface cooler and bagroom recovered flue gas, and the dust obtaining that gathers dust returns to liquid high lead dross side-blown reduction stove 2.The waste heat of the flue gas of discharging from the exhanst gas outlet 411 of fuming furnace 4 through waste heat boiler, surface cooler and sack cleaner recovered flue gas, after dedusting, flue gas and reduction furnace flue gas are merged into desulphurization system.The zinc oxide fumes Song Xin factory obtaining of gathering dust further processes output zinc and dissipated metal product.Plumbous silver-colored slag is circulated to plumbous factory and produces plumbous, silver products, has realized complete recycling economy
Refining splicer skill according to the utility model embodiment is described below, according to the refining splicer skill of the utility model embodiment, can be called oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refining splicer skill.
According to the refining splicer skill of the utility model embodiment, comprise the following steps:
Lead-containing material is joined in oxygen-enriched top blowing smelting furnace and carries out top-blown oxidation melting, to obtain lead bullion, melting high lead slag and sulfur dioxide flue gas one time.
The melting high lead slag of discharging from oxygen-enriched top blowing smelting furnace is supplied in liquid high lead dross side-blown reduction stove, carries out side-blown reduction melting, to obtain secondary lead bullion, reduction furnace slag and reduction furnace flue gas.
In described oxygen-enriched top blowing smelting furnace, discharge a lead bullion and discharge secondary lead bullion in described liquid high lead dross side-blown reduction stove.
According to the refining splicer skill of the utility model embodiment, utilize oxygen-enriched top blowing smelting furnace to lead-containing material, such as lead ore concentrate etc., carry out top blow smelting, the melting high lead slag obtaining is sent in liquid high lead dross side-blown reduction stove and is carried out side-blown reduction with molten state, without by the first cooling casting slag of high lead slag (or being called rich lead skim), after the smelting reduction that heats up again, so heat-energy losses is little, Energy Intensity Reduction; In addition, because the melting high lead slag to hot directly carries out retailoring, so comprehensive energy consumption further declines.Therefore,, according to the plumbous device energy conservation environmental protection of the refining of the utility model embodiment, Energy Intensity Reduction, metal recovery rate is high.
Below with reference to Fig. 2, describe according to the refining splicer skill of a specific embodiment of the utility model.
As shown in Figure 2, according to the refining splicer skill of the utility model specific embodiment, comprise the following steps:
Lead-containing material is joined in oxygen-enriched top blowing smelting furnace and carries out top-blown oxidation melting, to obtain lead bullion, melting high lead slag and sulfur dioxide flue gas one time.
The melting high lead slag of discharging from oxygen-enriched top blowing smelting furnace is supplied in liquid high lead dross side-blown reduction stove, carries out side-blown reduction melting, to obtain secondary lead bullion, reduction furnace slag and reduction furnace flue gas.
In described oxygen-enriched top blowing smelting furnace, discharge a lead bullion and discharge secondary lead bullion in described liquid high lead dross side-blown reduction stove.
Described reduction furnace slag is supplied to and in electrothermal front bed, carries out temperature raising and clarification, remaining lead and matte in slag, and adjust the working cycle of reduction furnace and fuming furnace.
By the reduction furnace slag after temperature raising and clarification from discharging and successively enter in fuming furnace with spelter works's leached mud in described electrothermal front bed, in described fuming furnace, spray into fine coal and air, slag is realized to retailoring and blowing and reclaim in slag valuable metal and slag is realized innoxious.
Zinc oxide fumes the flue gas that collection is discharged in described fuming furnace.
Recovery is from the waste heat of the flue gas of described liquid high lead dross side-blown reduction stove and the discharge of described fuming furnace
To from described liquid high lead dross side-blown reduction fire grate, go out and recovery waste heat flue gas carry out dedusting
The flue gas of having collected after zinc oxide fumes and dedusting is carried out to desulfurization
Reclaim described top blow smelting stove sulfur dioxide flue gas waste heat, sulfur dioxide flue gas is carried out dedusting, utilizes the sulphur dioxide flue gas acid preparing after dedusting.
According to the refining splicer skill of this specific embodiment of the utility model, the comprehensively recovering valuable metal of He Xin factory of lead refinery slag has also been realized the harmless treatment of slag, further improve metal recovery rate, brought into play the advantage that lead-zinc smelting associated enterprises slag for comprehensive utilizes recycling economy; Plumbous smelting adopts the melting of top blast oxygen-rich air, the rich lead skim side-blown of molten state Direct Reductive Melting, the warm sludge after reduction same spelter works's leached mud (cold burden), innovative technology and the equipment processed, reduce energy consumption and improved metal recovery rate, improved significantly environment.Realize flue gas during smelting and slag and processed furnace flue gas exhaust heat remanufacture steam for generating.The high density oxidation sulphur flue gas that top blast oxygen-enriched air smelting obtains carries out relieving haperacidity through waste heat recovery, dedusting, has improved economic benefit.
Reduction furnace and fuming furnace flue gas carry out desulfurization after waste heat recovery is gathered dust, rear discharge up to standard.Desulfurization product, through acidolysis, parses high density sulfurous gas and top blow smelting kiln gas and merges relieving haperacidity.Further improved environmental-protecting performance.The flue dust Returning smelting stove of top blast oxygen-enriched air smelting stove, side-blown reduction stove melting flue dust returns to side-blown converter retailoring, and the zinc oxide fumes Song Xin factory that fuming furnace is rich in valuable metal produces zinc and dissipated metal.The lead silver slag of zinc factory output returns to top blast oxygen-enriched air smelting stove and reclaims plumbous silver.
Below with reference to Fig. 2, describe according to the refining splicer skill of a concrete example of the utility model.
Fig. 2 shows the oxygen-enriched top blowing melting-molten state high lead slag side-blown reduction refining splicer skill according to a concrete example of the utility model, wherein will by chute, send in liquid high lead dross side-blown reduction stove through the molten state high lead slag of oxygen-enriched top blowing smelting furnace top-blown oxidation melting, fuel adopts producer gas and Sweet natural gas, and in liquid high lead dross side-blown reduction stove, direct-reduction becomes secondary lead bullion.
Describe in detail according to the concrete technology step of the refining splicer skill of the concrete example of the utility model below.
1, oxygen-enriched top blowing melting
Lead ore concentrate, plumbous silver-colored slag, oxidized ore, quartz; the returning charge of iron calcining and oxygen-enriched top blowing smelting furnace cigarette ash; after constant feeder batching, send disk pelletizing machine to granulate; pellet is sent in oxygen-enriched top blowing smelting furnace by reinforced rubber conveyer; by top-blown spray gun, in oxygen-enriched top blowing smelting furnace, spray into oxygen-rich air; the oxygen-rich air of oxygen concentration 60%-99% for example, to carry out oxidizing semlting, lead bullion of output, melting high lead slag and containing sulfur dioxide flue gas.
2, liquid high lead dross side-blown reduction
The high lead slag of molten state flows directly in liquid high lead dross side-blown reduction stove by the first chute, by side-blown spray gun to oxygen blast gas, air and coal gas (or Sweet natural gas) inside liquid high lead dross side-blown reduction stove and add broken coal, Wingdale, carry out side-blown reduction melting, be understandable that, in reduction process, can add quartz sand or lime to adjust slag type, can arrange in pairs or groups and process oxidation lead and zinc middlings, output secondary lead bullion, reduced blast furnace and low concentration sulphur dioxide flue gas simultaneously.
3, the zinc oxide fumes of enrichment valuable element is reclaimed in blast furnace fuming
Reduced blast furnace flows into electrothermal front bed temperature raising and clarification by the second chute, the lead of clarification or matte are by plumbous mouthful of discharge ingot casting of bottom, send in the lump refining with the lead bullion of smelting furnace output, reduced blast furnace after clarification flows into fuming furnace through the 3rd chute, and fuming furnace cold burden mouth adds the conventional leached mud of zinc factory.By pulverized coal injection, primary air nozzle and secondary air in fuming furnace, slag is carried out to retailoring and blowing, obtain fuming slag and low concentration sulphur dioxide flue gas, low concentration sulphur dioxide flue gas is through waste heat boiler recovery waste heat, through surface cooler cooling, utilize bagroom to collect and obtain zinc oxide fumes.Zinc oxide fumes send after multiple hearth furnace defluorinate chlorine, enters zinc oxide leaching system.The broken rear take-away of fuming furnace pulp water.Fuming furnace low concentration sulphur dioxide flue gas send desulfurization to process.
4, the low concentration sulphur dioxide flue gas that liquid high lead dross side-blown reduction stove produces, through waste heat boiler recovery waste heat, through surface cooler cooling, utilizes bagroom dedusting, and the flue dust obtaining returns to liquid high lead dross side-blown reduction stove.Flue gas after dedusting send zinc oxide smoke absorption system to process, desulfurization rear discharge up to standard.
5, the high density sulfur dioxide flue gas that oxygen-enriched top blowing smelting furnace produces, after waste heat boiler, dust precipitator, send vitriol works's relieving haperacidity.The lead fume dirt that waste heat boiler and dust precipitator are collected returns to oxygen-enriched top blowing smelting furnace batching; The low concentration sulphur dioxide flue gas process two-stage desulfurization that liquid high lead dross side-blown reduction stove and fuming furnace produce: leading portion adopts zinc oxide desulfurization technique, utilize the oxide powder and zinc of smelting output to make absorption agent, the zinc sulfite of output is through peracid decomposition, output solution of zinc sulfate enters zinc wet method system and carries zinc, parses high density sulfurous gas and send sulfate system relieving haperacidity; Back segment adopts ammonia desulfurizing process, obtains byproduct chemical fertilizer ammonium sulfate.
The control process of oxygen-enriched top blowing smelting furnace, liquid high lead dross side-blown reduction stove and fuming furnace adopts DCS Controlling System, realizes batching, granulation, oxygen supply, air feed, melting, waste heat recovery, electricity gathers dust and the full-range centralized Control of high temperature draught fan.DCS Controlling System mainly contains the compositions such as field control station, data communication system, human-machine interface unit, rack, power supply, and this is all known for those skilled in the art, is no longer repeated in this description here.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, at least one this feature can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is at least two, for example two, and three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless separately there is clear and definite restriction.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this specification sheets or example and different embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, modification, replacement and modification.

Claims (7)

1. oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refines a plumbous equipment, it is characterized in that, comprising:
Oxygen-enriched top blowing smelting furnace, described oxygen-enriched top blowing smelting furnace has top blast furnace body and in described body of heater, sprays into the top-blown spray gun containing oxygen air from described top blast furnace body top, and described top blast furnace body has top blast stove charging opening, top blast stove smoke outlet, the outlet of melting high lead slag and a lead bullion outlet; With
Liquid high lead dross side-blown reduction stove, described liquid high lead dross side-blown reduction stove and accessory have side-blown converter body of heater and from described side-blown converter body of heater side to described side-blown converter body of heater in spray into fuel and containing the side-blown spray gun of oxygen air, described side-blown converter body of heater has side-blown converter charging opening, side-blown converter smoke outlet, exports with described melting high lead slag melting high lead slag entrance, the outlet of secondary lead bullion and the side-blown converter slag notch being connected.
2. oxygen-enriched top blowing melting according to claim 1-liquid high lead dross side-blown direct-reduction refines plumbous equipment, it is characterized in that, also comprise fuming furnace, described fuming furnace has fuming furnace body of heater, described fuming furnace body of heater has warm sludge mouth, exhanst gas outlet and slag notch, and described warm sludge mouth is connected with described side-blown converter slag notch.
3. oxygen-enriched top blowing melting according to claim 2-liquid high lead dross side-blown direct-reduction refines plumbous equipment, it is characterized in that, also comprise electrothermal front bed, described electrothermal front bed has external crucible body of heater and is inserted into the electrode in described external crucible body of heater, and described external crucible body of heater has the reduced blast furnace entrance being connected with described side-blown converter slag notch and the external crucible slag notch being connected with described warm sludge mouth.
4. oxygen-enriched top blowing melting according to claim 3-liquid high lead dross side-blown direct-reduction refines plumbous equipment, it is characterized in that, described melting high lead slag outlet is connected by the first chute with described melting high lead slag entrance, described side-blown converter slag notch is connected by the second chute with described reduced blast furnace entrance, and described external crucible slag notch is connected by the 3rd chute with described warm sludge mouth.
5. according to the oxygen-enriched top blowing melting described in any one in claim 2-3-liquid high lead dross side-blown direct-reduction, refine plumbous equipment, it is characterized in that, also comprise the first waste heat boiler, first surface water cooler and the first bagroom, the inlet mouth of described the first waste heat boiler is connected with described exhanst gas outlet, the entrance of described first surface water cooler is connected with the air outlet of described the first waste heat boiler, and described the first bagroom is connected with the outlet of described first surface water cooler.
6. oxygen-enriched top blowing melting according to claim 1-liquid high lead dross side-blown direct-reduction refines plumbous equipment, it is characterized in that, also comprise the second waste heat boiler, second surface water cooler and the second bagroom, the inlet mouth of described the second waste heat boiler is connected with described side-blown converter smoke outlet, the entrance of described second surface water cooler is connected with the air outlet of described the second waste heat boiler, and described the second bagroom is connected with the outlet of described second surface water cooler.
7. oxygen-enriched top blowing melting according to claim 1-liquid high lead dross side-blown direct-reduction refines plumbous equipment, it is characterized in that, also comprise the 3rd waste heat boiler and electric precipitator, the inlet mouth of described the 3rd waste heat boiler is connected with described top blast stove smoke outlet, described the 3rd air outlet of waste heat boiler and the entrance of described electric precipitator are connected, and the outlet of described electric precipitator is connected with acid making system.
CN201420243164.2U 2014-05-13 2014-05-13 Lead smelting equipment adopting oxygen enrichment top-blown smelting and liquid high-lead slag side-blown direct reduction Active CN203820871U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103993183A (en) * 2014-05-13 2014-08-20 中国恩菲工程技术有限公司 Rich-oxygen top-blown smelting/liquid high-lead slag side-blown direct-reduction lead smelting equipment
CN104548898A (en) * 2014-11-27 2015-04-29 南京澄天环境科学研究院有限公司 Method and device for combining deep emission reduction of sulfur-containing tail gas
CN106086413A (en) * 2016-06-16 2016-11-09 汉中锌业有限责任公司 A kind of technique of zinc hydrometallurgy lead smelting gas recycling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103993183A (en) * 2014-05-13 2014-08-20 中国恩菲工程技术有限公司 Rich-oxygen top-blown smelting/liquid high-lead slag side-blown direct-reduction lead smelting equipment
CN103993183B (en) * 2014-05-13 2016-03-30 中国恩菲工程技术有限公司 Oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refines plumbous equipment
CN104548898A (en) * 2014-11-27 2015-04-29 南京澄天环境科学研究院有限公司 Method and device for combining deep emission reduction of sulfur-containing tail gas
CN106086413A (en) * 2016-06-16 2016-11-09 汉中锌业有限责任公司 A kind of technique of zinc hydrometallurgy lead smelting gas recycling

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