CN106086457A - A kind of lead Zinc oxide processing method for pyrometallurgical smelting - Google Patents
A kind of lead Zinc oxide processing method for pyrometallurgical smelting Download PDFInfo
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- CN106086457A CN106086457A CN201610672503.2A CN201610672503A CN106086457A CN 106086457 A CN106086457 A CN 106086457A CN 201610672503 A CN201610672503 A CN 201610672503A CN 106086457 A CN106086457 A CN 106086457A
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- China
- Prior art keywords
- lead zinc
- agglomerate
- zinc oxide
- lead
- concentrate
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/04—Obtaining zinc by distilling
- C22B19/08—Obtaining zinc by distilling in blast furnaces
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of lead Zinc oxide processing method for pyrometallurgical smelting, specifically include following steps: first choose more than fineness 200 mesh and account for the lead zinc oxide material of more than 80%, the main grade of lead zinc is more than 40%, dioxide-containing silica be less than 8%, blending process is often allocated in bulk concentrate 1 8% lead Zinc oxide allocate into accordingly 0.2 1.6% pyrite concentrate add sintering machine make agglomerate；In balling press, it is pressed into agglomerate after lead zinc oxide material 75 85%, iron powder 2 3%, slaked lime 5 10%, alumina cement 2 8% and water 5 10% being mixed, then agglomerate and lead zinc oxidation agglomerate is all added blast furnace and smelt；The present invention is directly entered the dispensing flow process of sintering by lead zinc oxide material or is pressed into agglomerate addition closed blast furnace, is possible not only to widen raw material channel, reduces purchasing of raw materials cost, shorten production procedure, reduces processing cost.
Description
Technical field
The invention belongs to pyrometallurgy field, be specifically related to a kind of lead Zinc oxide processing method for pyrometallurgical smelting.
Background technology
3rd smeltery's closed blast furnace lead-zinc smelting technique, in technical process of baking with agglomeration, occurs that the mixing of lead zinc is former
Material shortage and silicon content present the trend gone up year by year, and fluctuations in prices of raw materials amount of increase is relatively big, refer to the technique of process of baking with agglomeration
Mark controls, steady production flow process brings great difficulty, lacks the market competitiveness, and processing cost presents the trend that gradually rises,
The profit space of enterprise starts zooming out, and the development to enterprise brings huge challenge；After lead zinc oxide material enters flow process, occur mixed
Closing concentrate sulfur to decline, heat of baking with agglomeration provides and cannot be protected, the problems such as roasting process is the most thorough.
Summary of the invention
It is an object of the invention to as solving above-mentioned problems of the prior art, it is provided that a kind of lead for pyrometallurgical smelting
Zinc oxide processing method.
To this end, the technical solution used in the present invention is: a kind of lead Zinc oxide processing method for pyrometallurgical smelting, including
Following steps:
Step 1: choose more than fineness 200 mesh and reach the lead zinc oxide material of more than 80%, the main grade of lead zinc more than 40%, dioxy
SiClx content is less than 8%, often allocates 1-8% lead Zinc oxide into and allocate the sulfur of 0.2-1.6% accordingly in blending process in bulk concentrate
Washed ore adds sintering machine and makes agglomerate, it is ensured that concentrate sulfur content controls at 21-24%, it is ensured that concentrate lead content 13.5-14.5%,
Concentrate Zn content 33.5-35.5%；
Step 2: by the lead zinc oxide material 75-85% described in step 1, iron powder 2-3%, slaked lime 5-10%, alumina cement 2-8% and
Being pressed into agglomerate after water 5-10% mixing in balling press, lead zinc oxidation agglomerate rotary drum rate reaches more than 75%, lead oxide zinc zinc thing
The leaded 10-20% of dough block, containing zinc 18-32%；
Step 3: the agglomerate described in step 1 and the oxidation agglomerate of the lead zinc described in step 2 are all added blast furnace and smelt.
The invention have the benefit that and be directly entered the dispensing flow process of sintering by lead zinc oxide material or suppress agglomerating
Block adds closed blast furnace, is possible not only to widen raw material channel, reduces purchasing of raw materials cost, shortens production procedure, reduces processing
Cost；Achieving considerable economic benefit, lead zinc sulphur ore and oxide ore price difference press 700 yuan of calculating, annual oxide ore addition
By 8000 tons of calculating, every year can saving of purchase cost 5,600,000 yuan；After lead zinc oxide dough block directly enters blast furnace smelting, subtract
Having lacked the loss of middle smelting link, the whole process lead metal response rate improves 0.002%, and zinc metal recovery rate improves 0.003%, agglomerate
Entering stove every day by 10 tons of calculating, annual addition is 300 tons, and generation economic benefit per ton 500 yuan calculating can economize in raw materials the whole year
Cost 150,000 yuan.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
A kind of lead Zinc oxide processing method for pyrometallurgical smelting, comprises the steps:
Step 1: choose fineness more than 200 mesh reach more than 80% lead zinc oxide material, the main grade of lead zinc more than 40%,
Dioxide-containing silica is less than 8%, often allocates 1% lead Zinc oxide into and allocate the sulfur essence of 0.2% accordingly in blending process in bulk concentrate
Sand adds sintering machine and makes agglomerate, it is ensured that concentrate sulfur content controls 21%, it is ensured that concentrate lead content is 13.5%, and concentrate zinc contains
Amount 33.5%；
Step 2: the lead zinc oxide material 75% described in step 1, iron powder 2%, slaked lime 5%, alumina cement 8% and water 10% are mixed
After in balling press, be pressed into agglomerate, lead zinc oxidation agglomerate rotary drum rate reaches more than 85%, lead zinc oxide dough block leaded 11%,
Containing zinc 20%；
Step 3: the agglomerate described in step 1 and the oxidation agglomerate of the lead zinc described in step 2 are all added blast furnace and smelt.Lead
Metal recovery rate improves 0.001%, and zinc metal recovery rate improves 0.0015%
Embodiment 2
A kind of lead Zinc oxide processing method for pyrometallurgical smelting, comprises the steps:
Step 1: choose fineness more than 200 mesh reach more than 80% lead zinc oxide material, the main grade of lead zinc more than 40%,
Dioxide-containing silica is less than 8%, often allocates 4% lead Zinc oxide into and allocate the pyrite concentrate of 1% accordingly in blending process in bulk concentrate
Add sintering machine make agglomerate, it is ensured that concentrate sulfur content controls 23%, it is ensured that concentrate lead content 14.5%, concentrate Zn content
34.5%；
Step 2: after the lead zinc oxide material 80% described in step 1, iron powder 2%, slaked lime 8%, alumina cement 2% and water 8% are mixed
Being pressed into agglomerate in balling press, lead zinc oxidation agglomerate rotary drum rate reaches more than 80%, and lead zinc oxide dough block leaded 17% contains
Zinc 25%；
Step 3: the agglomerate described in step 1 and the oxidation agglomerate of the lead zinc described in step 2 are all added blast furnace and smelt.Lead
Metal recovery rate improves 0.0015%, and zinc metal recovery rate improves 0.0020%
Embodiment 3
A kind of lead Zinc oxide processing method for pyrometallurgical smelting, comprises the steps:
Step 1: choose fineness and reach the lead zinc oxide material of more than 80% more than 200 mesh, the main grade of lead zinc more than 40%, two
Silica content is less than 8%, often allocates 8% lead Zinc oxide into and allocate the pyrite concentrate of 1.6% accordingly in blending process in bulk concentrate
Add sintering machine and make agglomerate, it is ensured that concentrate sulfur content controls 24%, it is ensured that concentrate lead content 14.5%, concentrate Zn content
35.5%；
Step 2: after the lead zinc oxide material 85% described in step 1, iron powder 3%, slaked lime 5%, alumina cement 2% and water 5% are mixed
Being pressed into agglomerate in balling press, lead zinc oxidation agglomerate rotary drum rate reaches more than 75%, and lead zinc oxide dough block leaded 18% contains
Zinc 30%；
Step 3: the agglomerate described in step 1 and the oxidation agglomerate of the lead zinc described in step 2 are all added blast furnace and smelt.Lead
Metal recovery rate improves 0.002%, and zinc metal recovery rate improves 0.003.
Claims (1)
1. the lead Zinc oxide processing method for pyrometallurgical smelting, it is characterised in that comprise the steps:
Step 1: choose more than fineness 200 mesh reach more than 80% lead zinc oxide material, the main grade of lead zinc more than 40%, two
Silica content is less than 8%, often allocates 1-8% lead Zinc oxide into and allocate 0.2-1.6%'s accordingly in blending process in bulk concentrate
Pyrite concentrate adds sintering machine and makes agglomerate, it is ensured that concentrate sulfur content controls at 21-24%, it is ensured that concentrate lead content 13.5-
14.5%, concentrate Zn content 33-35%；
Step 2: by the lead zinc oxide material 75-85% described in step 1, iron powder 2-3%, slaked lime 5-10%, alumina cement 2-8% and
Being pressed into agglomerate after water 5-10% mixing in balling press, lead zinc oxidation agglomerate rotary drum rate reaches more than 75%, lead oxide zinc zinc thing
The leaded 11-20% of dough block, containing zinc 20-32%；
Step 3: the agglomerate described in step 1 and the oxidation agglomerate of the lead zinc described in step 2 are all added blast furnace and smelt.
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| CN201610672503.2A CN106086457A (en) | 2016-08-16 | 2016-08-16 | A kind of lead Zinc oxide processing method for pyrometallurgical smelting |
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| CN201610672503.2A CN106086457A (en) | 2016-08-16 | 2016-08-16 | A kind of lead Zinc oxide processing method for pyrometallurgical smelting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916940A (en) * | 2017-03-10 | 2017-07-04 | 白银有色集团股份有限公司 | A kind of oxidation material is colded pressing a direct melting method |
| CN109913643A (en) * | 2019-03-07 | 2019-06-21 | 昆明理工大学 | A method of Pb-Zn deposits are handled with damaged tire |
| CN110042260A (en) * | 2019-05-24 | 2019-07-23 | 昆明有色冶金设计研究院股份公司 | A kind of smelting process of low-grade difficult smelting charge of lead and zinc |
| CN111254287A (en) * | 2020-03-11 | 2020-06-09 | 深圳市中金岭南有色金属股份有限公司 | Smelting recovery method of lead-zinc-containing enriched oxide |
| CN113604682A (en) * | 2021-07-01 | 2021-11-05 | 云南云铜锌业股份有限公司 | Method for recovering zinc oxide from low-grade lead-zinc oxide ore |
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| CN102776376A (en) * | 2012-08-08 | 2012-11-14 | 汉源县广超有色金属综合回收有限责任公司 | Method for recovering valuable metal from waste residue containing lead and zinc through wet-fire combination process |
| CN104831086A (en) * | 2015-04-16 | 2015-08-12 | 长沙有色冶金设计研究院有限公司 | Lead and zinc-containing material sintering melting method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916940A (en) * | 2017-03-10 | 2017-07-04 | 白银有色集团股份有限公司 | A kind of oxidation material is colded pressing a direct melting method |
| CN106916940B (en) * | 2017-03-10 | 2019-04-12 | 白银有色集团股份有限公司 | A kind of oxidation material cold pressing group direct melting method |
| CN109913643A (en) * | 2019-03-07 | 2019-06-21 | 昆明理工大学 | A method of Pb-Zn deposits are handled with damaged tire |
| CN110042260A (en) * | 2019-05-24 | 2019-07-23 | 昆明有色冶金设计研究院股份公司 | A kind of smelting process of low-grade difficult smelting charge of lead and zinc |
| CN111254287A (en) * | 2020-03-11 | 2020-06-09 | 深圳市中金岭南有色金属股份有限公司 | Smelting recovery method of lead-zinc-containing enriched oxide |
| CN111254287B (en) * | 2020-03-11 | 2022-01-11 | 深圳市中金岭南有色金属股份有限公司 | Smelting recovery method of lead-zinc-containing enriched oxide |
| CN113604682A (en) * | 2021-07-01 | 2021-11-05 | 云南云铜锌业股份有限公司 | Method for recovering zinc oxide from low-grade lead-zinc oxide ore |
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Application publication date: 20161109 |
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