CN104087761A - Secondary lead smelting method - Google Patents
Secondary lead smelting method Download PDFInfo
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- CN104087761A CN104087761A CN201410364658.0A CN201410364658A CN104087761A CN 104087761 A CN104087761 A CN 104087761A CN 201410364658 A CN201410364658 A CN 201410364658A CN 104087761 A CN104087761 A CN 104087761A
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- lead
- smelting
- lead plaster
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Abstract
The invention discloses a secondary lead smelting method which comprises the following steps: crushing scrap lead storage batteries, pre-desulfurizing, and separating to obtain lead plaster; and drying the lead plaster in a drying kiln, smelting in a lead plaster smelting furnace, treating the generated flue gas to obtain waste gas, and meanwhile, returning the waste gas into the drying kiln as a drying heat source. The hot waste gas obtained by waste heat recovery of the lead plaster smelting furnace and lead grid smelting furnace is used as the heat source for drying the lead plaster, thereby being beneficial to the smelting reaction of the lead plaster, enhancing the production efficiency and lowering the energy consumption; smoke dust obtained by treating the high-temperature flue gas generated in the lead plaster smelting furnace and lead grid smelting furnace is returned into the lead plaster smelting furnace to implement utilization of waste, and meanwhile, smelting slag generated by lead grid smelting and refining slag generated by refining also return to the lead plaster smelting furnace for treatment; and the complete treatment system has the advantages of high direct yield, low comprehensive energy consumption and low pollution, and implements optimized configuration of effective resources.
Description
Technical field
The smelting process that the present invention relates to a kind of secondary lead, relates in particular to the smelting of all kinds of secondary lead raw materials such as waste lead acid battery.
Background technology
At present, the production technique of secondary lead comprises pyrometallurgical smelting process, Solid phase electrolysis reducing process and wet method smelting process etc., wherein, pyrometallurgical smelting process is used comparatively general, but exist desulfurization lead plaster moisture content high, lead plaster enters the problems such as melting stove melting cycle is long, and direct yield is low, comprehensive energy consumption is high.
Summary of the invention
Goal of the invention: the object of this invention is to provide a kind of can enhancing productivity and the rate of recovery, the secondary lead smelting method of comprehensive energy consumption of reducing.
Technical scheme: secondary lead smelting method of the present invention, comprise broken, the pre-desulfurization of waste lead accumulator, sorting are obtained to lead plaster, after the kiln drying of described lead plaster drying is dry, enter the melting of lead plaster smelting furnace, the treated waste gas that obtains of flue gas of generation, this waste gas returns in dry kiln simultaneously.
Wherein, the treated generation flue dust of described flue gas, this flue dust Returning smelting stove.
Described flue gas enters waste heat boiler successively and fly-ash separator is processed.
Described lead plaster produces lead bullion through melting, and it obtains lead pig and refining slag through refining.
Described lead plaster produces smelting slag through melting.
The present invention also comprises broken, the pre-desulfurization of described waste lead accumulator, sorting obtained to lead grid, and described lead grid react in lead grid smelting furnace that the flue gas producing is treated must waste gas, and this waste gas returns in dry kiln.
The treated flue dust that obtains of flue gas that described lead grid melting produces, in the smelting furnace of this flue dust Returning smelting lead plaster.
The flue gas that described lead grid melting reaction generates enters waste heat boiler successively and fly-ash separator is processed.
The lead bullion that described lead grid melting generates obtains alloy lead and multielement lead through refining; In the smelting furnace of the refining slag Returning smelting lead plaster that this refining process obtains simultaneously.
In described dry kiln, produce waste gas, after fly-ash separator, desulfurization washing tower, discharge atmosphere successively, wherein, in fly-ash separator, produce flue dust and return in dry kiln.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: 1, this smelting process utilizes lead plaster smelting furnace and the hot waste gas of lead grid smelting furnace after waste heat recovery to make the dry thermal source of lead plaster, be beneficial to the melting reaction of lead plaster, enhance productivity, reduce energy consumption; 2, the treated flue dust obtaining of high-temperature flue gas producing in lead plaster smelting furnace and lead grid smelting furnace returns in lead plaster smelting furnace, realizes refuse reclamation; 3, the refining slag that the smelting slag that lead grid melting produces, refining produce also all returns to lead plaster smelting furnace and processes; 4, a whole set for the treatment of system direct yield is high, comprehensive energy consumption is low, pollute few, realize distributing rationally of efficient resource, the lead pig that reaction generates, alloy is plumbous, multielement is plumbous etc. for selling outward, the raw material that the lead bullion that simultaneously lead plaster melting generates can be used as reclaiming copper, antimony, tin through the refining slag of refining output is sold outward, in its smelting slag, containing a small amount of plumbous, can send into cement mill and make cement.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment:
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.
As shown in Figure 1, secondary lead smelting method of the present invention, comprises broken, the pre-desulfurization of waste lead accumulator, sorting is obtained to lead plaster, lead grid and plastics, wherein, these plastics are mainly polypropylene, heavy plastics and ABS etc.
After the kiln drying of described lead plaster drying is dry, enter the melting of lead plaster smelting furnace, the treated waste gas that obtains of flue gas of generation, this waste gas returns in dry kiln simultaneously.
Wherein, the main component of lead plaster is lead carbonate, wherein approximately contains 20% moisture, if directly carry out melting, needs to consume part of fuel to remove moisture wherein.In the present invention, lead plaster can first carry out press filtration, then enter dry kiln dry, approximately 1000 ℃ of high-temperature flue gas that lead plaster melting produces, after the recovery waste heat of waste heat boiler and the dedusting of fly-ash separator, produce and approach the waste gas of 300 ℃ and send into dry kiln as thermal source, so can realize used heat utilization; Meanwhile, the lead plaster that has evaporated moisture is beneficial to and reduces fuel consumption and shorten smelting time, and the production efficiency that so can improve smelting furnace has also reduced energy consumption simultaneously.
The treated generation flue dust of above-mentioned high-temperature flue gas, this flue dust Returning smelting stove, it is in order to reclaim plumbous and other metals in cigarette ash that cigarette ash returns.
Lead plaster produces lead bullion through melting, and it obtains outer lead pig and the refining slag of selling through refining, wherein, from refining slag, can extract copper, antimony, tin etc.In smelting furnace, also produce smelting slag, wherein containing approximately 1.8% lead and micro-antimony, tin metal, can send into cement mill and make cement.
Described lead grid produces smelting slag through melting, and the alloying constituents such as this lead-in-dreg, antimony, tin, can return to lead plaster smelting furnace and carry out melting.
Lead grid of the present invention can first seasoning, to remove moisture wherein, then approximately 800 ℃ of flue gases that produce in lead grid smelting furnace must approximately 300 ℃ of waste gas after the recovery waste heat of waste heat boiler and fly-ash separator are processed, and this waste gas also returns in dry kiln as another dry thermal source.
The treated flue dust that obtains of flue gas that lead grid melting produces, in the smelting furnace of this flue dust Returning smelting lead plaster.
The lead bullion that lead grid melting generates obtains alloy lead and multielement lead through refining; The metal such as recyclable lead wherein, antimony, tin in the smelting furnace of the refining slag Returning smelting lead plaster that this refining process obtains simultaneously.
The smelting slag that lead grid melting produces also returns and in lead plaster smelting furnace, reclaims the alloying elements such as lead, antimony, tin.
In dry kiln, produce waste gas, after fly-ash separator, desulfurization washing tower, discharge atmosphere successively, wherein, in fly-ash separator, produce flue dust and return in dry kiln.
Claims (10)
1. a secondary lead smelting method, it is characterized in that: comprise broken, the pre-desulfurization of waste lead accumulator, sorting are obtained to lead plaster, after the kiln drying of described lead plaster drying is dry, enter lead plaster smelting furnace and carry out melting, the treated waste gas that obtains of flue gas of generation, this waste gas returns in dry kiln as drying source simultaneously.
2. secondary lead smelting method according to claim 1, is characterized in that: the treated generation flue dust of described flue gas, this flue dust returns to smelting furnace.
3. secondary lead smelting method according to claim 1 and 2, is characterized in that: described flue gas enters waste heat boiler successively and fly-ash separator is processed.
4. secondary lead smelting method according to claim 1 and 2, is characterized in that: described lead plaster produces lead bullion through melting, and it obtains lead pig and refining slag through refining.
5. secondary lead smelting method according to claim 1 and 2, is characterized in that: described lead plaster produces smelting slag through melting.
6. secondary lead smelting method according to claim 1, it is characterized in that: also comprise broken, the pre-desulfurization of described waste lead accumulator, sorting are obtained to lead grid, described lead grid reacts the treated waste gas that obtains of the flue gas producing in lead grid smelting furnace, and this waste gas returns in dry kiln.
7. secondary lead smelting method according to claim 6, is characterized in that: flue gas that described lead grid melting produces treated flue dust, in the smelting furnace of this flue dust Returning smelting lead plaster.
8. according to the secondary lead smelting method described in claim 6 or 7, it is characterized in that: the flue gas that described lead grid melting produces enters waste heat boiler successively and fly-ash separator is processed.
9. according to the secondary lead smelting method described in claim 6 or 7, it is characterized in that: the lead bullion that described lead grid melting generates obtains alloy lead and multielement lead through refining; In the smelting furnace of the refining slag Returning smelting lead plaster that this refining process obtains simultaneously.
10. according to the secondary lead smelting method described in claim 1,2 or 6, it is characterized in that: in described dry kiln, produce waste gas, through fly-ash separator, desulfurization washing tower, after processing, discharge atmosphere successively, wherein, in fly-ash separator, produce flue dust and return in dry kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410364658.0A CN104087761A (en) | 2014-07-28 | 2014-07-28 | Secondary lead smelting method |
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| CN201410364658.0A CN104087761A (en) | 2014-07-28 | 2014-07-28 | Secondary lead smelting method |
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| CN201410364658.0A Pending CN104087761A (en) | 2014-07-28 | 2014-07-28 | Secondary lead smelting method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803205A (en) * | 2016-03-17 | 2016-07-27 | 安徽省华鑫铅业集团有限公司 | Smelting process for efficient and energy-saving secondary lead |
| CN107142380A (en) * | 2017-04-14 | 2017-09-08 | 安徽省华鑫铅业集团有限公司 | Reviver low temperature continuous melting process |
| CN108165752A (en) * | 2017-12-30 | 2018-06-15 | 天津华庆百胜能源有限公司 | A kind of safe lead-acid accumulator recovery method |
| CN108461849A (en) * | 2017-02-20 | 2018-08-28 | 中国瑞林工程技术有限公司 | The processing system of lead-acid battery and its application |
| CN108624757A (en) * | 2018-05-14 | 2018-10-09 | 南安市创培电子科技有限公司 | A kind of reviver production method for accumulator |
| CN108715941A (en) * | 2018-05-29 | 2018-10-30 | 安徽睿知信信息科技有限公司 | A kind of smelting process of reviver |
| CN109244582A (en) * | 2018-09-28 | 2019-01-18 | 阳煤集团山西吉天利科技有限公司 | A kind of technique of waste lead accumulator harmless treatment and resource utilization |
| CN109371249A (en) * | 2018-12-14 | 2019-02-22 | 太和县大华能源科技有限公司 | A kind of energy-efficient secondary lead smelting technique |
| CN110699548A (en) * | 2019-09-16 | 2020-01-17 | 安徽华铂再生资源科技有限公司 | Lead grid smelting processing technology |
| CN114250369A (en) * | 2021-12-31 | 2022-03-29 | 湘潭大学 | Process for cooperatively recovering waste lead storage battery and waste lithium ion battery |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803205A (en) * | 2016-03-17 | 2016-07-27 | 安徽省华鑫铅业集团有限公司 | Smelting process for efficient and energy-saving secondary lead |
| CN108461849A (en) * | 2017-02-20 | 2018-08-28 | 中国瑞林工程技术有限公司 | The processing system of lead-acid battery and its application |
| CN107142380A (en) * | 2017-04-14 | 2017-09-08 | 安徽省华鑫铅业集团有限公司 | Reviver low temperature continuous melting process |
| CN108165752A (en) * | 2017-12-30 | 2018-06-15 | 天津华庆百胜能源有限公司 | A kind of safe lead-acid accumulator recovery method |
| CN108624757A (en) * | 2018-05-14 | 2018-10-09 | 南安市创培电子科技有限公司 | A kind of reviver production method for accumulator |
| CN108715941A (en) * | 2018-05-29 | 2018-10-30 | 安徽睿知信信息科技有限公司 | A kind of smelting process of reviver |
| CN109244582A (en) * | 2018-09-28 | 2019-01-18 | 阳煤集团山西吉天利科技有限公司 | A kind of technique of waste lead accumulator harmless treatment and resource utilization |
| CN109244582B (en) * | 2018-09-28 | 2022-03-11 | 阳煤集团山西吉天利科技有限公司 | Process for harmless treatment and resource utilization of waste lead storage battery |
| CN109371249A (en) * | 2018-12-14 | 2019-02-22 | 太和县大华能源科技有限公司 | A kind of energy-efficient secondary lead smelting technique |
| CN110699548A (en) * | 2019-09-16 | 2020-01-17 | 安徽华铂再生资源科技有限公司 | Lead grid smelting processing technology |
| CN114250369A (en) * | 2021-12-31 | 2022-03-29 | 湘潭大学 | Process for cooperatively recovering waste lead storage battery and waste lithium ion battery |
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Application publication date: 20141008 |