CN112210677B - Multi-metal vulcanization composite converting treatment process - Google Patents
Multi-metal vulcanization composite converting treatment process Download PDFInfo
- Publication number
- CN112210677B CN112210677B CN202011094718.3A CN202011094718A CN112210677B CN 112210677 B CN112210677 B CN 112210677B CN 202011094718 A CN202011094718 A CN 202011094718A CN 112210677 B CN112210677 B CN 112210677B
- Authority
- CN
- China
- Prior art keywords
- converting
- vulcanization
- blowing
- slag
- furnace
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/025—Obtaining nickel or cobalt by dry processes with formation of a matte or by matte refining or converting into nickel or cobalt, e.g. by the Oxford process
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a multi-metal vulcanization composite converting treatment process. The method adopted by the invention comprises the following steps: 1) melting sulfur: putting the sulfur into sulfur liquefying equipment, and melting to obtain liquid sulfur; 2) feeding: adding a polymetallic substance, coke and silica in proportion from a charging opening at the upper end of the vulcanizing composite converting furnace; 3) and (3) vulcanizing blowing: vulcanizing by a vulcanizing spray gun, blowing by a side gun or vulcanizing by a vulcanizing spray gun and blowing by a bottom gun; 4) discharging slag; 5) purging sulfur; 6) blowing; 7) discharging slag; 8) sampling; 9) discharging: and after the components reach the standard, discharging the high-ice product into a steel ladle from an alloy port, and keeping later-stage slag and part of the high-ice product in the furnace to be used as a bottom material of the next furnace, wherein the content of Fe in the high-ice product is controlled to be 7-15%. The invention carries out vulcanization and blowing deferrization on polymetallic substances, so that the S content in the melt is 20-30%, and the deferrization rate is more than 92%.
Description
Technical Field
The invention relates to the field of metal ore treatment, in particular to a multi-metal vulcanization composite converting treatment process.
Background
The main components of the polymetallic substances are iron, cobalt, nickel, manganese, copper and the like, the existing process adopts wet leaching, and the leaching process is complicated, the acid consumption is high, the wastewater amount is large, the produced slag is dangerous waste slag due to high iron content, the production cost is increased, and greater pressure is brought to environmental protection. Therefore, the pyrometallurgical treatment of polymetallic substances is adopted, iron is oxidized and silica is subjected to slagging, the iron content in high-ice products is greatly reduced, the slag is common solid waste, the subsequent treatment process is simplified, and the environmental pressure is relieved.
At present, a PS converter or a bottom blowing furnace is mostly adopted for carrying out fire treatment on polymetallic substances, the PS converter is low in auxiliary equipment investment and simple to operate, but the PS converter is short in furnace life, low in operation rate and low in sulfur content in flue gas, and if the flue gas is used for making acid, a plurality of converters are required to operate simultaneously; the bottom-blowing furnace has long furnace life, high operation rate, high sulfur content in flue gas and high investment on accessory equipment.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the existing vulcanization composite converting furnace and provides a method for treating multi-metal objects by a vulcanization composite converting process, which adopts vulcanization by a vulcanization spray gun and side gun converting or vulcanization by the vulcanization spray gun and bottom gun converting to carry out vulcanization converting on the multi-metal objects, so that the Fe content in a high-ice product is reduced to 7-15%, and the iron removal rate is more than 92%.
Therefore, the invention adopts the following technical scheme: a multi-metal object sulfurizing composite converting process, the composition of said multi-metal object contains Co, Ni, Mn, Fe, Cu and S, in which Fe is 40-75%, it includes the steps:
1) melting sulfur: putting sulfur into sulfur liquefying equipment, and melting to obtain liquid sulfur at the temperature of 160-170 ℃;
2) feeding: adding a polymetallic substance, coke and silica in proportion from a charging hole at the upper end of the vulcanization composite converting furnace, wherein the input amount is calculated according to the flow of the oxygen-enriched air;
3) and (3) vulcanizing blowing: in the feeding process, blowing oxygen-enriched air into the vulcanization composite converting furnace through a converting spray gun, simultaneously flowing liquid sulfur into the vulcanization composite converting furnace through a vulcanization spray gun, and adopting a vulcanization spray gun vulcanization and side gun converting or a vulcanization spray gun vulcanization and bottom gun converting mode at the temperature of 1200-1300 ℃;
4) slag discharging: in the process of vulcanizing converting, slag is discharged from a slag discharge port of a vulcanizing composite converting furnace periodically, and a small amount of coke is added before slag discharge to reduce the content of cobalt and copper in the slag;
5) purging sulfur: stopping adding the sulfur after the vulcanization period is finished, and blowing the residual sulfur in the vulcanization spray gun into the vulcanization combined converting furnace by using high-pressure steam;
6) blowing: continuously adding silica and depleted polymetallic substances from a charging opening at the upper end of the vulcanizing composite converting furnace, blowing oxygen-enriched air for converting at 1200-1300 ℃, wherein the converting mode is vulcanizing spray gun converting, side gun converting or vulcanizing spray gun converting and bottom gun converting;
7) slag discharging: in the converting process, the early-stage slag is discharged from a slag discharge hole of the vulcanizing composite converting furnace periodically, and a small amount of coke is added before slag discharge to reduce the content of cobalt and copper in the slag;
8) sampling: sampling from a sampling port, and detecting components after cooling;
9) discharging: after the components reach the standard, the furnace is shaken until the fused mass is exposed from the outlets of all spray guns, the converting is stopped, the high ice product is discharged into a ladle from an alloy outlet on the vulcanization composite converting furnace, the later slag and part of the high ice product are left in the furnace to be used as a bottom material for the converting of the next furnace, and the content of Fe in the high ice product is controlled to be 7-15%;
the steps 1) to 5) are vulcanization periods, and the steps 6) to 9) are blowing periods.
The invention adopts a vulcanization composite converting furnace to carry out vulcanization converting on multi-metal objects, and the multi-metal objects, coke and silica are added in proportion from a charging opening at the upper end of the vulcanization composite converting furnace.
As a supplement to the above technical scheme, the air blowing uses oxygen blown into oxygen-enriched air to oxidize iron into ferrous iron, and the ferrous iron and silica are subjected to slagging to generate iron silicate.
As a supplement to the above technical solution, Fe/SiO in the slag 2 The mass ratio of (A) to (B) is 1.6-2.
As a supplement to the above technical solution, in the blowing process, all the materials are continuously fed.
The technical scheme is supplemented, the sulfur melting temperature is 160-170 ℃, and the vulcanization converting temperature is 1200-1300 ℃.
As a supplement to the technical scheme, when vulcanization is carried out by a vulcanization spray gun and blowing is carried out by a side blowing gun, 9-13 side blowing guns are used, the blowing pressure is 0.1-0.15 MPa, and the oxygen-enriched concentration is 21-25%.
As a supplement to the technical scheme, when vulcanization is carried out by a vulcanization spray gun and bottom blowing is carried out, 5-7 bottom blowing guns are used, the blast pressure is 0.4-0.6 Mpa, and the oxygen-enriched concentration is 21-30%.
In addition to the above technical solution, the depleted polymetallic material is obtained from a process for depletion of converting slag.
As a supplement to the technical scheme, the sulfur (powder) in the sulfur industry has S more than 99.9 percent.
In addition to the above technical solution, the mass ratio of the input amount of the polymetallic substance, the coke and the silica is 55-60: 1: 15-20, wherein the polymetallic substance is polymetallic ore or polymetallic alloy.
As a supplement to the above technical solution, the vulcanization composite converting furnace comprises a cylinder, a transmission system, a gear ring, a wheel belt and a riding wheel, wherein a first vulcanization spray gun and a first converting spray gun (i.e., a side converting gun) are arranged at the side part of the cylinder, and a second vulcanization spray gun and a second converting spray gun (i.e., a bottom converting gun) are arranged at the bottom of the cylinder;
the first vulcanizing spray gun on the side part of the cylinder is one, and a plurality of first blowing spray guns are arranged;
one second disulfide spray gun is arranged at the bottom of the cylinder body, and a plurality of second converting spray guns are arranged;
the upper part of the cylinder is provided with a charging port, a smoke outlet and a sampling port, and one side or two sides of the cylinder are provided with a slag outlet, a sulfonium outlet and a burner;
the transmission shaft of the transmission system is connected with a gear, the gear is meshed with a gear ring, the gear ring is fixedly connected with the cylinder body, a belt is fixedly connected with the cylinder body, and the belt is arranged on the riding wheel.
The multi-metal vulcanization composite converting treatment process provided by the invention can remove iron in multi-metal in a targeted manner, so that the iron content in a high-ice product is 7-15%, and the iron removal rate is more than 92%; no waste water is generated in the treatment, and the slag is common solid waste, so that the industrial environmental protection pressure is relieved, the production cost is reduced, and the pressure of the subsequent wet method iron removal process is greatly reduced.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a diagram of the process equipment of the present invention;
FIG. 3 is a schematic view of the construction of the sulfidation combined converting furnace of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp. It is to be understood that the specific embodiments described herein are merely illustrative of some, but not all embodiments of the invention, and that other embodiments can be devised by those skilled in the art without the use of the inventive faculty, and are within the scope of the invention.
Example 1 (phi 2.4m, 7.0m sulfur complex vulcanization complex converting furnace, multi-metal components Co 10-25%, Fe 60-75%, Cu 10-20%, S1-2%)
Step 1, sulfur melting: 5.53t of sulfur is put into sulfur liquefying equipment for melting, the temperature is 160-170 ℃, and the feeding speed is 0.79 t/h;
step 2, feeding: adding polymetallic substances, coke and silica from a charging opening at the upper end of the vulcanization composite converting furnace, wherein the total input amount is 30t of the polymetallic substances, 0.59t of the coke and 7.95t of the silica, and the charging speed is 4.29t/h, 0.09t/h and 1.14t/h respectively;
and step 5, purging sulfur: after the vulcanization period is finished, stopping adding the sulfur, and blowing the residual sulfur in the vulcanization spray gun into the furnace by using high-pressure steam, wherein the using amount of the steam is 331.8m 3 /h；
The obtained high-ice product contains 36.69% of Co, 7.51% of Fe7, 28.10% of Cu, 23.82% of S and 94.8% of iron removal rate.
The flow and equipment of the process are shown in the figures 1-2.
Example 2 (phi 2.4m, 7.0m sulfur complex vulcanization complex converting furnace, multi-metal components Co 10-25%, Fe 60-75%, Cu 10-20%, S1-2%)
Step 1, sulfur melting: 5.46t of sulfur is put into sulfur liquefaction equipment for melting, the temperature is 160 ℃ and 170 ℃, and the feeding speed is 0.91 t/h;
step 2, feeding: adding polymetallic substances, coke and silica from a charging hole at the upper end of the vulcanization composite converting furnace, wherein the total input amount is 30t of the polymetallic substances, 0.45t of the coke and 7.85t of the silica, and the charging speed is 5t/h, 0.08t/h and 1.31t/h respectively;
and step 5, purging sulfur: after the vulcanization period is finished, stopping adding the sulfur, and blowing the residual sulfur in the vulcanization spray gun into the furnace by using high-pressure steam, wherein the using amount of the steam is 331.8m 3 /h；
The obtained high-ice product contains 36.27% of Co, 8.04% of FeI, 27.84% of Cu, 23.71% of S and 94.6% of iron removal rate.
The flow and equipment diagrams of the process are shown in figures 1-2.
The vulcanizing composite converting furnace used in the two embodiments comprises a cylinder 14, a transmission system 13, a gear 18, a gear ring 17, a belt 15 and a riding wheel 16, as shown in fig. 3.
A first vulcanization spray gun 7 and a first converting spray gun 8 (namely side converting guns) are arranged on the side part of a cylinder body 14, and a second vulcanization spray gun 11 and a second converting spray gun 12 (namely bottom converting guns) are arranged at the bottom of the cylinder body 14.
The number of the first vulcanization spray guns 7 on the side of the cylinder 14 is one, and the number of the first blowing spray guns 8 is plural. The second blowing lance 12 is provided with a plurality of second blowing lances 11 on the bottom of the barrel 14.
And the upper part of the cylinder 14 is provided with a feed inlet 1, a smoke outlet 2 and a sampling port 3. One side or two sides of the cylinder 14 are provided with a slag outlet 4, a sulfonium outlet 5 and a burner 10.
An emergency accident evacuation port 6 is arranged on the side part of the barrel 14. The barrel 14 is lined with refractory material 9.
A transmission shaft of the transmission system 13 is connected with a gear 18, the gear 18 is meshed with a gear ring 17, and the gear ring 17 is fixedly connected with the cylinder 14; the belt 15 is fixedly connected with the cylinder 14, and the belt 15 is arranged on the riding wheel 16.
Claims (8)
1. A multi-metal object sulfurization composite converting treatment process is characterized in that the components of the multi-metal object comprise Co, Ni, Mn, Fe, Cu and S, wherein Fe is 40-75%, and the process comprises the following steps:
1) melting sulfur: putting sulfur into sulfur liquefying equipment, and melting to obtain liquid sulfur, wherein the sulfur melting temperature is 160-170 ℃;
2) feeding: adding a polymetallic substance, coke and silica in proportion from a charging hole at the upper end of the vulcanization composite converting furnace, wherein the input amount is calculated according to the flow of the oxygen-enriched air;
3) vulcanizing and converting: in the feeding process, blowing oxygen-enriched air into the vulcanization composite converting furnace through a converting spray gun, simultaneously flowing liquid sulfur into the vulcanization composite converting furnace through a vulcanization spray gun, and adopting a vulcanization spray gun vulcanization and side gun converting or a vulcanization spray gun vulcanization and bottom gun converting mode at the temperature of 1200-1300 ℃;
4) slag discharging: in the process of vulcanizing converting, slag is discharged from a slag discharge port of a vulcanizing composite converting furnace periodically, and a small amount of coke is added before slag discharge to reduce the content of cobalt and copper in the slag;
5) purging sulfur: stopping adding sulfur after the vulcanization period is over, and blowing the residual sulfur in the vulcanization spray gun into a vulcanization combined converting furnace by using high-pressure steam;
6) blowing: continuously adding silica and depleted polymetallic substances from a charging opening at the upper end of the vulcanizing composite converting furnace, blowing oxygen-enriched air for converting at 1200-1300 ℃, wherein the converting mode is vulcanizing spray gun converting, side gun converting or vulcanizing spray gun converting and bottom gun converting;
7) slag discharging: in the converting process, the early-stage slag is discharged from a slag discharge hole of the vulcanizing composite converting furnace periodically, and a small amount of coke is added before slag discharge to reduce the content of cobalt and copper in the slag;
8) sampling: sampling from a sampling port, and detecting components after cooling;
9) discharging: after the components reach the standard, the furnace is shaken until the fused mass is exposed from the outlets of all spray guns, the converting is stopped, the high ice product is discharged into a ladle from an alloy outlet on the vulcanization composite converting furnace, the later slag and part of the high ice product are left in the furnace to be used as a bottom material for the converting of the next furnace, and the content of Fe in the high ice product is controlled to be 7-15%;
the steps 1) to 5) are vulcanization periods, and the steps 6) to 9) are blowing periods;
in the step 2), the mass ratio of the input amount of the polymetallic substance, the coke and the silica is 55-60: 1: 15-20 parts of; in step 6), the depleted polymetallic material is from the process of blowing slag depletion.
2. The multi-metal object vulcanization composite converting treatment process of claim 1, wherein the air blowing uses oxygen blown into the enriched air to oxidize iron into ferrous iron, and slag-forming with silica to produce iron silicate.
3. The multi-metal object vulcanization composite converting treatment process of claim 1, wherein Fe/SiO in slag 2 The mass ratio of (A) to (B) is 1.6-2.
4. The multiple metal object sulfidation compound converting process of claim 1, wherein all materials are continuously fed during converting.
5. The multi-metal object vulcanization composite converting treatment process of claim 1, wherein 9-13 side converting guns are used for vulcanization and side converting, the blowing pressure is 0.1-0.15 MPa, and the oxygen-enriched concentration is 21-25%.
6. The multi-metal object vulcanization composite converting treatment process of claim 1, wherein when vulcanization is performed by a vulcanization spray gun and conversion is performed by a bottom blowing gun, 5-7 bottom blowing guns are used, the blowing pressure is 0.4-0.6 MPa, and the oxygen-enriched concentration is 21-30%.
7. The multi-metal object sulfidation compound converting process of claim 1, wherein the multi-metal object is a multi-metal ore or a multi-metal alloy.
8. The multi-metal object vulcanization composite converting treatment process according to claim 1, characterized in that the vulcanization composite converting furnace comprises a cylinder (14), a transmission system (13), a gear (18), a gear ring (17), a wheel belt (15) and a riding wheel (16), wherein a first vulcanization spray gun (7) and a first converting spray gun (8) are arranged at the side of the cylinder (14), and a second vulcanization spray gun (11) and a second converting spray gun (12) are arranged at the bottom of the cylinder (14);
the number of the first vulcanizing spray guns (7) on the side part of the barrel body (14) is one, and a plurality of first blowing spray guns (8) are arranged;
one second disulfide spray gun (11) is arranged at the bottom of the cylinder body (14), and a plurality of second converting spray guns (12) are arranged;
the upper part of the cylinder (14) is provided with a charging port (1), a smoke outlet (2) and a sampling port (3), and one side or two sides of the cylinder (14) are provided with a slag outlet (4), a sulfonium outlet (5) and a burner (10);
a transmission shaft of the transmission system (13) is connected with a gear (18), the gear (18) is meshed with a gear ring (17), the gear ring (17) is fixedly connected with the cylinder body, a belt pulley (15) is fixedly connected with the cylinder body (14), and the belt pulley (15) is arranged on a riding wheel (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094718.3A CN112210677B (en) | 2020-10-14 | 2020-10-14 | Multi-metal vulcanization composite converting treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094718.3A CN112210677B (en) | 2020-10-14 | 2020-10-14 | Multi-metal vulcanization composite converting treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112210677A CN112210677A (en) | 2021-01-12 |
| CN112210677B true CN112210677B (en) | 2022-09-13 |
Family
ID=74054140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011094718.3A Active CN112210677B (en) | 2020-10-14 | 2020-10-14 | Multi-metal vulcanization composite converting treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112210677B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791600B2 (en) * | 1989-03-09 | 1995-10-04 | 日本鋼管株式会社 | Ni ore smelting reduction method |
| CN101358296B (en) * | 2008-07-15 | 2011-01-12 | 朝阳昊天有色金属有限公司 | Method for preparing high nickel matte |
| CN204918706U (en) * | 2015-09-14 | 2015-12-30 | 李光明 | Many metal recycling side -blown converter |
| CN109680164A (en) * | 2019-01-04 | 2019-04-26 | 中国恩菲工程技术有限公司 | A method of preparing nickel matte |
| CN111378851B (en) * | 2020-04-16 | 2023-09-19 | 中国恩菲工程技术有限公司 | System and method for treating laterite nickel ore |
-
2020
- 2020-10-14 CN CN202011094718.3A patent/CN112210677B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112210677A (en) | 2021-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104131170B (en) | The smelting process of low-grade useless composition brass | |
| CN108504875B (en) | Short-process copper smelting method | |
| CN113943863B (en) | Device and method for producing high nickel matte by utilizing ferronickel liquid | |
| CN113355534B (en) | Method and equipment for producing nickel matte by continuous converting furnace | |
| CN104018006B (en) | A kind of nickel matte bottom blowing converting process and nickel matte bottom blowing converting furnace | |
| CN208762562U (en) | A kind of vertical oxygen-enriched side-blowing bath smelting furnace of circle | |
| CN111286627A (en) | Oxygen bottom blowing continuous copper smelting system | |
| RU2733803C1 (en) | Method and system for accelerated copper smelting | |
| CN112210677B (en) | Multi-metal vulcanization composite converting treatment process | |
| MX2009001285A (en) | Lead slag reduction. | |
| CN104018005B (en) | Nickel matte bottom blowing converting process and nickel matte bottom blowing converting furnace | |
| CN113481380A (en) | Full-thermal-state continuous bottom blowing copper smelting method and equipment | |
| EP2459761A2 (en) | Process for refining lead bullion | |
| US5435833A (en) | Process to convert non-ferrous metal such as copper or nickel by oxygen enrichment | |
| CN113430388B (en) | Short-flow reduction fuming device and method for liquid lead slag, lead smelting system and method | |
| CN215757540U (en) | Short-flow reduction fuming device for liquid lead slag and lead smelting system | |
| CN85105034A (en) | Shuiko mountain method of smelt lead | |
| CN212102967U (en) | Oxygen bottom blowing continuous copper smelting system | |
| JP3189096B2 (en) | Method for producing steel in liquid bath and apparatus for carrying out the method | |
| CN213363330U (en) | Vulcanizing composite converting furnace | |
| RU2380633C1 (en) | Duplex-furnace for smelting of manganese alloys from ferrimanganese bases and concentrates and anthropogenic wastes of metallurgy | |
| CA2843798A1 (en) | Method and apparatus for dephosphorising liquid hot metal such as liquid blast furnace iron | |
| RU2520292C1 (en) | Processing of sulphide copper-lead-zinc materials | |
| CN104018007B (en) | Nickel matte bottom blowing converting process and nickel matte bottom blowing blowing device | |
| CN215163035U (en) | Equipment for producing nickel matte by using continuous converting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |