CN110453089A - A method of it reducing PS converter blister copper and carries slag secretly - Google Patents
A method of it reducing PS converter blister copper and carries slag secretly Download PDFInfo
- Publication number
- CN110453089A CN110453089A CN201910815536.1A CN201910815536A CN110453089A CN 110453089 A CN110453089 A CN 110453089A CN 201910815536 A CN201910815536 A CN 201910815536A CN 110453089 A CN110453089 A CN 110453089A
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- CN
- China
- Prior art keywords
- slag
- converter
- copper
- tons
- thickness
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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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0041—Bath smelting or converting in converters
Abstract
The present invention relates to a kind of methods of reduction PS converter blister copper entrainment slag, belong to chemical industry technical field of smelting, method includes the following steps: big granularity quartz is added, and (granularity is controlled in 30-50mm, ingredient: SiO 1) before PS converter two cycles copper2>=92%, H2O≤3%), quartz is contacted with the peroxide slugging floated on copper face, and slag blanket is made to become solid phase from liquid phase；2) copper water is toppled in converter, and ascending control topples over flow, copper water scouring force reduced, to reduce blister copper slag inclusion amount.The present invention passes through before PS converter two cycles copper, big granularity quartz is added, quartz is contacted with peroxide slugging, the heat in peroxide slugging is absorbed rapidly, so that the peroxide slugging on copper surface is become solid phase from liquid phase rapidly, blister copper and clinker are kept completely separate, solve the problems, such as that converter blister copper slag inclusion is more, success reduces PS converter blister copper and carries the quantity of slag secretly, reduces blister copper impurity content, improves blister copper chemical quality.
Description
Technical field
The invention belongs to chemical industry technical field of smelting, specifically, are related to a kind of side of reduction PS converter blister copper entrainment slag
Method.
Background technique
The purpose and task that PS is bessemerized are iron, sulphur and a part of other objectionable impurities in removing matte, thus
It obtains metallic copper (blister copper), the noble metals such as gold, silver are enriched in blister copper.
The PS of matte is bessemerized, and is a kind of strong oxidation process, i.e. compressed air is blown into the molten matte in converter
In layer, that aoxidize first is ferrous sulfide (FeS), and ferrous oxide (FeO) and sulfur dioxide (SO are generated after oxidation2), oxidation is sub-
The quartzy flux (SiO2) that iron and (FeO) are added combines slag making (2FeOSiO2), sulfur dioxide (SO2) is then escaped from fire door,
Clinker (2FeOSiO2) periodically released from fire door, according to the actual conditions bessemerized, different number is repeatedly added into furnace
Molten matte carry out continuing to blow, and slag is released from furnace, until having assembled sufficient amount of cuprous sulfide (Cu in furnace2S),
Therefore it is known as one period of blowing, characterized by generating a large amount of clinkers, main purpose is the iron and a part of other removed in matte
Objectionable impurities.The purpose of second round be white metal blowing is removed into the sulphur in matte at blister copper because two cycles be not added it is molten
Agent, thus without or few clinkers generate.
The slag making stage of PS converter is difficult all to remove the clinker in furnace, and two cycles are raw with a small amount of clinker in addition
At influencing blister copper chemical quality so PS converter enters blister copper during the copper of blister copper, with a small amount of clinker.
Summary of the invention
In order to solve the problems, such as background technique, the present invention provides a kind of sides of reduction PS converter blister copper entrainment slag
Method solves the problems, such as that converter blister copper slag inclusion is more, successfully reduces PS converter blister copper and carries the quantity of slag secretly, reduces blister copper impurity content,
Improve blister copper chemical quality.
To achieve the above object, the present invention is achieved through the following technical solutions:
The method for reducing PS converter blister copper entrainment slag, specifically includes the following steps:
1) before PS converter two cycles copper, big granularity quartz is added, is contacted with the peroxide slugging floated on copper face,
Slag blanket is set to become solid phase from liquid phase；
2) copper water is toppled in converter, and ascending control topples over flow, copper water scouring force reduced, to reduce blister copper slag inclusion
Amount.
Preferably, the granularity of quartz is controlled in 30-50mm, ingredient: SiO in step 1)2>=92%, H2O≤3%.
Preferably, the control of the ratio of quartz additional amount and the quantity of slag is between 1:1.3-1:3, the quartzy additional amount upper limit is
7 tons.
Preferably, converter quantity of slag evaluation method: measuring thickness of slag layer in furnace with drill steel, and then estimate that quartz addition makes
Dosage；Thickness of slag layer 10mm, 1-2 tons of the quantity of slag；Thickness of slag layer 10-20mm, 2-3 tons of the quantity of slag；Thickness of slag layer 20-30mm, quantity of slag 3-4
Ton；Thickness of slag layer 30-40mm, 4-5 tons of the quantity of slag；Thickness of slag layer 40-50mm, 5-6 tons of the quantity of slag；Thickness of slag layer 50-60mm, quantity of slag 6-
7 tons；Thickness of slag layer 60-70mm, 7-8 tons of the quantity of slag；Thickness of slag layer 70-80mm, 8-9 tons of the quantity of slag；Thickness of slag layer 80-90mm, the quantity of slag
9-10 tons；Thickness of slag layer 90-100mm, 10-11 tons of the quantity of slag.
Preferably, when quartz is added, adjusting converter turndown angle in step 1), increases quartz and contacted with slag blanket
Area.
Preferably, 65-70 ° of angle of converter turndown.
Beneficial effects of the present invention:
The present invention by before PS converter two cycles copper, being added big granularity quartz, and to the additional amount of quartz into
Row control, quartz are contacted with peroxide slugging, and quartz absorbs rapidly the heat in peroxide slugging, makes the peroxide slugging on copper surface
Solid phase is become from liquid phase rapidly, blister copper and clinker are kept completely separate, solves the problems, such as that converter blister copper slag inclusion is more, successfully reduces
PS converter blister copper carries the quantity of slag secretly, reduces blister copper impurity content, improves blister copper chemical quality.
Specific embodiment
It, below will be to preferred reality of the invention in order to keep the purpose of the present invention, technical scheme and beneficial effects clearer
It applies example to be described in detail, to facilitate the technical staff to understand.
A method of it reducing PS converter blister copper and carries slag secretly, comprising the following steps:
1) it before PS converter two cycles copper, adjusts converter turndown angle (60-70 °), big granularity quartz (granularity is added
Control is in 30-50mm, ingredient: SiO2>=92%, H2O≤3%), it is come into full contact with the peroxide slugging floated on copper face, makes slag
Layer becomes solid phase from liquid phase.
The ratio of quartz additional amount and the quantity of slag controls between 1:1.3-1:3, and the quartzy additional amount upper limit is 7 tons and (uses
Electronic scale measures quartzy additional amount).Converter quantity of slag evaluation method is thickness of slag layer in furnace to be measured with drill steel, and then estimate quartz
Usage amount is added.Thickness of slag layer 10mm, 1-2 tons of the quantity of slag；Thickness of slag layer 10-20mm, 2-3 tons of the quantity of slag；Thickness of slag layer 20-30mm,
3-4 tons of the quantity of slag；Thickness of slag layer 30-40mm, 4-5 tons of the quantity of slag；Thickness of slag layer 40-50mm, 5-6 tons of the quantity of slag；Thickness of slag layer 50-
60mm, 6-7 tons of the quantity of slag；Thickness of slag layer 60-70mm, 7-8 tons of the quantity of slag；Thickness of slag layer 70-80mm, 8-9 tons of the quantity of slag；Thickness of slag layer
80-90mm, 9-10 tons of the quantity of slag；Thickness of slag layer 90-100mm, 10-11 tons of the quantity of slag.
2) copper water is toppled in converter, and ascending control topples over flow, copper water scouring force reduced, to reduce blister copper slag inclusion
Amount.
The method of embodiment 1-9 is same as above, and specific process parameter is shown in Table 1.
The table 1PS converter output quantity of slag and pressure debris English additional amount change table
The blister copper chemical quality table of 2 embodiment 1-9 of table
PS converter can produce a certain amount of peroxide slugging in two cycles, a period do not eliminate the lead remained in copper, arsenic,
Zinc, antimony, bismuth, nickel are enriched in peroxide slugging, and specific gravity is small compared with copper, when converter copper, copper that this part peroxide slugging all floats
On face.By adjusting the additional amount of converter turndown angle and quartz before converter copper, contact quartz with peroxide slugging, quartz
The heat in peroxide slugging is absorbed rapidly, so that the peroxide slugging on copper surface is become solid phase from liquid phase rapidly, finally by blister copper and furnace
Slag is kept completely separate, to reach the slag content reduced in blister copper, effectively improves blister copper chemical quality.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
1. a kind of method for reducing PS converter blister copper entrainment slag, it is characterised in that: specifically includes the following steps:
1) before PS converter two cycles copper, big granularity quartz is added, is contacted with the peroxide slugging floated on copper face, makes slag
Layer becomes solid phase from liquid phase；
2) copper water is toppled in converter, and ascending control topples over flow, copper water scouring force reduced, to reduce blister copper slag inclusion amount.
2. a kind of method for reducing PS converter blister copper entrainment slag according to claim 1, it is characterised in that: in step 1),
The granularity of quartz is controlled in 30-50mm, ingredient: SiO2>=92%, H2O≤3%。
3. -2 a kind of described in any item methods for reducing PS converter blister copper entrainment slag according to claim 1, it is characterised in that: stone
The ratio of diamond stone additional amount and the quantity of slag controls between 1:1.3-1:3, and the quartzy additional amount upper limit is 7 tons.
4. according to a kind of described in any item methods for reducing PS converter blister copper entrainment slag of claim 3, it is characterised in that: converter
Quantity of slag evaluation method: thickness of slag layer in furnace is measured with drill steel, and then estimates that usage amount is added in quartz；Thickness of slag layer 10mm, slag
1-2 tons of amount；Thickness of slag layer 10-20mm, 2-3 tons of the quantity of slag；Thickness of slag layer 20-30mm, 3-4 tons of the quantity of slag；Thickness of slag layer 30-40mm,
4-5 tons of the quantity of slag；Thickness of slag layer 40-50mm, 5-6 tons of the quantity of slag；Thickness of slag layer 50-60mm, 6-7 tons of the quantity of slag；Thickness of slag layer 60-
70mm, 7-8 tons of the quantity of slag；Thickness of slag layer 70-80mm, 8-9 tons of the quantity of slag；Thickness of slag layer 80-90mm, 9-10 tons of the quantity of slag；Thickness of slag layer
90-100mm, 10-11 tons of the quantity of slag.
5. a kind of method for reducing PS converter blister copper entrainment slag according to claim 1-4, it is characterised in that: step
It is rapid 1) in, when quartz is added, adjust converter turndown angle, increase quartz and slag blanket contact area.
6. a kind of method for reducing PS converter blister copper entrainment slag according to claim 5, it is characterised in that: converter turndown angle
65-70 ° of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815536.1A CN110453089A (en) | 2019-08-30 | 2019-08-30 | A method of it reducing PS converter blister copper and carries slag secretly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910815536.1A CN110453089A (en) | 2019-08-30 | 2019-08-30 | A method of it reducing PS converter blister copper and carries slag secretly |
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| CN110453089A true CN110453089A (en) | 2019-11-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330541A (en) * | 2004-05-20 | 2005-12-02 | Nippon Mining & Metals Co Ltd | Melting treatment method for wet particulate iron-containing substance in copper ps converter |
| CN104419837A (en) * | 2013-09-09 | 2015-03-18 | 宁波金田铜业(集团)股份有限公司 | Tin bronze slag conglomeration agent and preparation method thereof |
| CN107043854A (en) * | 2017-01-20 | 2017-08-15 | 梁瑞兵 | The synthetical recovery equipment and technique of a variety of non-ferrous metal materials |
| CN108707762A (en) * | 2018-05-02 | 2018-10-26 | 昆明理工大学 | A method of removing arsenic antimony during copper matte regulus is bessemerized |
-
2019
- 2019-08-30 CN CN201910815536.1A patent/CN110453089A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330541A (en) * | 2004-05-20 | 2005-12-02 | Nippon Mining & Metals Co Ltd | Melting treatment method for wet particulate iron-containing substance in copper ps converter |
| CN104419837A (en) * | 2013-09-09 | 2015-03-18 | 宁波金田铜业(集团)股份有限公司 | Tin bronze slag conglomeration agent and preparation method thereof |
| CN107043854A (en) * | 2017-01-20 | 2017-08-15 | 梁瑞兵 | The synthetical recovery equipment and technique of a variety of non-ferrous metal materials |
| CN108707762A (en) * | 2018-05-02 | 2018-10-26 | 昆明理工大学 | A method of removing arsenic antimony during copper matte regulus is bessemerized |
Non-Patent Citations (2)
| Title |
|---|
| 翟秀静主编: "《重金属冶金学》", 31 August 2011, 冶金工业出版社 * |
| 贺晓红等: "《铜冶金生产技术》", 28 February 2017, 冶金工业出版社 * |
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Application publication date: 20191115 |
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