CN206385233U - A kind of dedicated system for handling thermal state metal pellet - Google Patents
A kind of dedicated system for handling thermal state metal pellet Download PDFInfo
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- CN206385233U CN206385233U CN201621020037.1U CN201621020037U CN206385233U CN 206385233 U CN206385233 U CN 206385233U CN 201621020037 U CN201621020037 U CN 201621020037U CN 206385233 U CN206385233 U CN 206385233U
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Abstract
The utility model discloses a kind of dedicated system for handling thermal state metal pellet, including：Metallized pellet processing unit, wet grinding device, equipment for separating liquid from solid, Gravity separation device, magnetic separating device, precipitation separation device and calciner plant；Wherein, the broken material outlet of metallized pellet processing unit is connected with the broken material entrance of wet grinding device, the grinding slurry outlet of wet grinding device is connected with the grinding slurry inlet of equipment for separating liquid from solid, the solid mixture outlet of equipment for separating liquid from solid is connected with the solids mixture inlet of Gravity separation device, the light mixture outlet of Gravity separation device is connected with the light mixture inlet of magnetic separating device, the filtrate (liquid of equipment for separating liquid from solid is connected with the filtrate inlet of precipitation separation device, the ferrous hydroxide outlet of precipitation separation device is connected with the ferrous hydroxide entrance of calciner plant.The utility model dedicated system effectively realizes thermal state metal pellet, the comprehensive utilization of Leaching of Gold Using Thiosulfate liquid.
Description
Technical field
The utility model is related to a kind of dedicated system for handling thermal state metal pellet, belongs to the place of thermal state metal pellet
Reason field.
Background technology
Metallized pellet generally refers to the roasted product that ferrous material pelletizing is obtained after direct-reduction, wherein iron it is main with
Exist in the form of metallic iron or ferroalloy (iron is with the presence of metallic iron form in ferroalloy), therefore its degree of metalization is typically reachable
60%~95%.Handled more than current metallized pellet using two ways, a kind of mode is that thermal state metal pellet is direct
Send into smelting furnace, molten point of iron/ferroalloy and melting slag are obtained after fusing separation；Another mode is that metallized pellet is first
Through water quenching, crush, then after ore grinding, magnetic separation separation, obtain metallic iron/ferroalloy particles and mine tailing.Wherein, separated using fusing
During mode, energy consumption is higher, but can obtain molten point of iron/ferroalloy of high-grade；When being handled using ore grinding, magnetic separation mode, cost compared with
It is low, but because desired grinding particle size is thin, therefore the energy consumption and water consume of grinding process occupy larger proportion in production cost.
Cyaniding is the method that current gold mining enterprises production is generally used, but cyanide leaching of gold is to pan area ecological environment shadow
Sound is larger, and especially serious to underground water pollution, the security risk of site operation personnel is higher, in some countries and regions cyanidings
Fa Tijin, which has been restricted, to be used.Thiosulfuric acid salt system is because its effect on environment is small, nontoxic, safety, the golden speed of leaching are fast and
The advantages of carbon containing hardly possible of the intractable cupric of cyaniding smelts ore can be handled, has been considered as most being expected to replace cyanide leaching at present
Go out and reclaim the leaching agent of gold.But because thiosulfate gold extracting process reagents consumption is big and lacks a kind of effectively recovery gold
Method, cause the method not can apply to industrial production always.The method of gold is reclaimed from Leaching of Gold Using Thiosulfate liquid displacement
Method (precipitation method), resin adsorption, charcoal absorption, solvent extraction and electrodeposition metallurgy etc., wherein first two technique study is more, but
Also all there is certain deficiency.Research shows, metallic iron influences very big to leaching process, has been passivated the leaching of gold, with iron powder
During displacement gold, it is also possible to passivation gold so that golden replacement rate is not high.
The A of Chinese patent application publication No. CN 103956487 disclose one kind and prepare phosphorus using rotary hearth furnace metallized pellet
The method of sour iron lithium, carries out the multiple process such as broken, grinding, magnetic separation, grinding and secondary magnetic separation by metallized pellet and handles, then will
Ferrous alloy is used, and technological process is longer；And the utility model using metallized pellet-grinding-wet magnetic separation-
Batch mixing-drying-sintering process, material successively passes through high temperature-low temperature-high temperature and dry method-wet method-dry process, energy
Consumption is higher, thus high expensive；Resulting LiFePO4 is also possible to influence its product product because of the impurity that ferrous alloy is brought into
Matter.Chinese patent application publication No. CN 101200320A disclose it is a kind of be used for handle waste water high-carbonaceous metallized pellet and
Preparation method, prepares high-carbonaceous metallized pellet, this method is only applicable to processing electricity using carbonaceous material and iron-bearing material as raw material
Solution filtrate, and need to be in the acidic electrolyte bath aqueous solution, using carbon, iron as anode and cathode, using Fe2+Weight is realized with the reduction of carbon
The reduction of metal and organic pollution is reclaimed, therefore its treatment effect and production cost are undesirable, and can not realize valuable member
The recovery of element, therefore economic benefit is poor.
It would therefore be highly desirable to develop a kind of processing method and system of new thermal state metal pellet, thermal state metal ball is realized
The processing cost of group and the comprehensive utilization of Leaching of Gold Using Thiosulfate liquid, reduction metallized pellet and Leaching of Gold Using Thiosulfate liquid.
Utility model content
A technical problem to be solved in the utility model is to provide a kind of processing system of thermal state metal pellet.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of processing system of thermal state metal pellet, including：Thermal state metal pellet processing unit, wet grinding dress
Put, equipment for separating liquid from solid, Gravity separation device, magnetic separating device, precipitation separation device and calciner plant.
Wherein, the thermal state metal pellet processing unit is exported provided with thermal state metal pellet entrance and broken material；
The wet grinding device goes out provided with broken material entrance, Leaching of Gold Using Thiosulfate liquid entrance, inhibitor entrance and grinding slurry
Mouthful；The equipment for separating liquid from solid is provided with grinding slurry inlet, solid mixture outlet and filtrate (liquid；The Gravity separation device
Provided with solids mixture inlet, elemental gold outlet and light mixture outlet；The magnetic separating device provided with light mixture inlet,
Metallic iron/ferroalloy particles outlet and mine tailing outlet；The precipitation separation device is provided with filtrate inlet, quick lime entrance, hydrogen-oxygen
Change ferrous outlet and supernatant outlet；The calciner plant is exported provided with ferrous hydroxide entrance and iron oxide red.
Further, the broken material outlet of the thermal state metal pellet processing unit and the wet grinding device
Broken material entrance is connected；The grinding slurry outlet of the wet grinding device enters with the grinding slurry of the equipment for separating liquid from solid
Mouth is connected；The solid mixture outlet of the equipment for separating liquid from solid and the solids mixture inlet phase of the Gravity separation device
Even；The light mixture outlet of the Gravity separation device is connected with the light mixture inlet of the magnetic separating device；It is described solid
The filtrate (liquid of liquid separating apparatus is connected with the filtrate inlet of the precipitation separation device；The hydroxide of the precipitation separation device
Ferrous iron outlet is connected with the ferrous hydroxide entrance of the calciner plant.Wherein described wet grinding device can be ball mill.
" connected " described in the utility model can be fixedly connected or be detachably connected；Can mechanically connect,
It can also be electrical connection；Can be directly connected to or be indirectly connected to by intermediary.
The system that the utility model implements the processing method, the thermal state metal pellet processing unit is used for will be hot
Metallized pellet carries out water quenching, crushed, and obtains broken material；The wet grinding device is used for broken material and thiosulfuric acid
Salt gold leachate and inhibitor carry out wet grinding, obtain grinding slurry；The equipment for separating liquid from solid is used to carry out grinding slurry
Separation of solid and liquid, obtains solid mixture and filtrate；The Gravity separation device is used to solid mixture carrying out gravity treatment, obtains list
The golden and light mixture of matter；The magnetic separating device be used for by light mixture carry out magnetic separation, obtain metallic iron/ferroalloy particles and
Mine tailing；The precipitation separation device is used for filtrate and quick lime precipitation reaction, and ferrous hydroxide is obtained after precipitation separation；Institute
Stating calciner plant is used to be calcined ferrous hydroxide, obtains iron oxide red.
Technical solutions of the utility model compared with prior art, have the advantages that：
The utility model substitutes straight iron powder or iron filings with metallized pellet, is not changing the existing main body processing of metallized pellet
On the premise of technique, by adding Leaching of Gold Using Thiosulfate liquid and inhibitor in wet grinding process, without the auxiliary such as stirring
Measure, you can occur displacement reaction, recovery obtains elemental gold, significantly reduces the processing cost of Leaching of Gold Using Thiosulfate liquid.This
Utility model controls in inhibitor gold ion in fluorine ion and Leaching of Gold Using Thiosulfate liquid by using fluoride inhibitor
Mol ratio is 1-3：1, it may be such that fluorine ion can fully suppress the inhibitory action of reproducibility ion pair displacement reaction.This practicality
New use Leaching of Gold Using Thiosulfate liquid reduces the water consume of water quenching process, the water consume of grinding process, improves metallized pellet
Grindability, further reduction ore grinding energy consumption, reduce the processing cost of metallized pellet, improve economic benefit.This practicality
The processing method and system of new hot metallized pellet, realize thermal state metal pellet, Leaching of Gold Using Thiosulfate liquid it is comprehensive
Close and utilize, output high-quality iron product, iron oxide red and elemental gold.
Brief description of the drawings
Fig. 1 is the structural representation of the processing system of the utility model thermal state metal pellet.
Embodiment
Further describe the utility model with reference to specific embodiment, advantage and feature of the present utility model will be with
Description and it is apparent.It should be understood that the embodiment is only exemplary, scope of the present utility model is not constituted and appointed
What is limited.It will be understood by those skilled in the art that can be to this reality under without departing from spirit and scope of the present utility model
Modified or replaced with the details and form of new technique scheme, but these modifications or substitutions each fall within guarantor of the present utility model
Protect scope.
As shown in figure 1, the utility model provides a kind of processing system of thermal state metal pellet, including：Thermal state metal
Pellet processing unit 1, wet grinding device 2, equipment for separating liquid from solid 3, Gravity separation device 4, magnetic separating device 5, precipitation
Separator 6 and calciner plant 7.
Wherein, thermal state metal pellet processing unit 1 is exported provided with thermal state metal pellet entrance and broken material；Wet type
Ore grinding device 2 is provided with broken material entrance, Leaching of Gold Using Thiosulfate liquid entrance, inhibitor entrance and grinding slurry outlet；Solid-liquid
Separator 3 is provided with grinding slurry inlet, solid mixture outlet and filtrate (liquid；Gravity separation device 4 is mixed provided with solid
Thing entrance, elemental gold outlet and light mixture outlet；Magnetic separating device 5 is provided with light mixture inlet, metallic iron/ferroalloy
Grain outlet and mine tailing outlet；Precipitation separation device 6 is provided with filtrate inlet, quick lime entrance, ferrous hydroxide outlet and supernatant
Outlet；Calciner plant 7 is exported provided with ferrous hydroxide entrance and iron oxide red.
Further, the broken material outlet of thermal state metal pellet processing unit 1 and the fragment of wet grinding device 2
Expect that entrance is connected；The grinding slurry outlet of wet grinding device 2 is connected with the grinding slurry inlet of equipment for separating liquid from solid 3；Solid-liquid
The solid mixture outlet of separator 3 is connected with the solids mixture inlet of Gravity separation device 4；Gravity separation device 4
Light mixture outlet is connected with the light mixture inlet of magnetic separating device 5；The filtrate (liquid of equipment for separating liquid from solid 3 and precipitation point
Filtrate inlet from device 6 is connected；The ferrous hydroxide outlet of precipitation separation device 6 and the ferrous hydroxide of calciner plant 7 enter
Mouth is connected.
" connected " described in the utility model can be fixedly connected or be detachably connected；Can mechanically connect,
It can also be electrical connection；Can be directly connected to or be indirectly connected to by intermediary.
The processing system of the utility model thermal state metal pellet, the metallized pelletizing processing unit of thermal state metal pellet
1 thermal state metal pellet entrance enters metallized pellet processing unit 1, and thermal state metal pellet is carried out into water quenching, crushed, is obtained
To broken material.Broken material entrance of the broken material through wet grinding device 2 enters wet grinding device 2, thiosulfate
Gold leachate and inhibitor enter wet grinding device 2 by Leaching of Gold Using Thiosulfate liquid entrance, inhibitor entrance respectively, will be broken
Material carries out wet grinding with Leaching of Gold Using Thiosulfate liquid and inhibitor, obtains grinding slurry.Grinding slurry is filled through separation of solid and liquid
The grinding slurry inlet for putting 3 enters equipment for separating liquid from solid 3, carries out separation of solid and liquid, obtains solid mixture and filtrate.Solid is mixed
Solids mixture inlet of the thing through Gravity separation device 4 enters Gravity separation device 4, carries out gravity treatment, obtains elemental gold and light mixed
Compound.Light mixture inlet of the light mixture through magnetic separating device 5 enters magnetic separating device 5, carries out magnetic separation, obtains metal
Iron/ferroalloy particles and mine tailing.Grinding slurry precipitates obtained filtrate through equipment for separating liquid from solid 3, through precipitation separation device 6
Filtrate inlet enters precipitation separation device 6, and quick lime is added into precipitation separation device 6, filtrate and raw stone by quick lime entrance
Ash reaction, obtains ferrous hydroxide.Ferrous hydroxide entrance of the ferrous hydroxide through calciner plant 7 enters calciner plant 7, carries out
Calcining, obtains iron oxide red.
Embodiment one
[1] it will obtain closing rich in ferronickel after " lateritic nickel ore-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT
Gold grain, degree of metalization are 80%, and temperature is that 800 DEG C of thermal state metal pellet carries out water quenching, crushed, and obtains below 3mm's
Broken material；
[2] broken material is sent into ball mill, the concentration for adding gold ion is 10mg/L Leaching of Gold Using Thiosulfate liquid, fluorine
Change calcium and carry out wet grinding, ore grinding time 40min so that the mol ratio of fluorine ion and gold ion is 1：1, control metallized pellet
With the ratio of Leaching of Gold Using Thiosulfate liquid so that metallic iron rubs with gold ion in Leaching of Gold Using Thiosulfate liquid in metallized pellet
You are than being 10：1, thiosulfate gradually with dilval particle occur displacement reaction generation elemental gold, and with unreacted nickel
Ferroalloy particles, impurity etc. are all levigate to account for more than 70% to below 0.074mm, obtains grinding slurry；
[3] grinding slurry is subjected to separation of solid and liquid, obtains solid mixture and filtrate, wherein solid mixture closes for ferronickel
Gold grain, elemental gold and mine tailing composition, filtrate are the solution containing ferrous ion, and the concentration of its gold ion is less than 0.01mg/L；
[4] solid mixture is subjected to gravity treatment, obtains elemental gold and light mixture；
[5] light mixture is subjected to magnetic separation, it is the high dilval that 9.53%, Iron grade is 63.22% to obtain nickel grade
Particle and mine tailing；
[6] quick lime is added into filtrate, iron ion is generated hydroxide iron precipitate, then aoxidized after calcining
Iron oxide red product.
Embodiment two
[1] it will obtain being rich in low ferronickel after " nickel fibers slag-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT
Alloying pellet, degree of metalization are 85%, and temperature is that 1000 DEG C of thermal state metal pellet carries out water quenching, crushed, and obtains below 2mm
Broken material；
[2] broken material is sent into ball mill, it is 5mg/L Leaching of Gold Using Thiosulfate liquid, fluorination to add the concentration of gold ion
Calcium carries out wet grinding, ore grinding time 30min so that the mol ratio of fluorine ion and gold ion is 2：1, control metallized pellet and
The ratio of Leaching of Gold Using Thiosulfate liquid so that mole of metallic iron and gold ion in Leaching of Gold Using Thiosulfate liquid in metallized pellet
Than for 1000：1, thiosulfate gradually with low dilval particle occur displacement reaction generation elemental gold, and with it is unreacted
Low dilval particle, impurity etc. are all levigate to account for more than 80% to below 0.074mm, obtains grinding slurry；
[3] grinding slurry is subjected to separation of solid and liquid, obtains solid mixture and filtrate, wherein solid mixture closes for ferronickel
Gold grain, elemental gold and mine tailing composition, filtrate are the solution containing ferrous ion, and the concentration of its gold ion is less than 0.01mg/L；
[4] solid mixture is subjected to gravity treatment, obtains elemental gold and light mixture；
[5] light mixture is subjected to magnetic separation, obtains Iron grade 90.38%, the low dilval particle of nickel content 1.86%
And mine tailing；
[6] quick lime is added into filtrate, iron ion is generated hydroxide iron precipitate, then aoxidized after calcining
Iron oxide red product.
Embodiment three
[1] it will obtain being rich in metallic iron after " Iron concentrate-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT
Grain, degree of metalization are 95%, and temperature is that 900 DEG C of thermal state metal pellet carries out water quenching, crushed, and obtains the broken of below 1mm
Material；
[2] broken material is sent into ball mill, the concentration for adding gold ion is 0.1mg/L Leaching of Gold Using Thiosulfate liquid, fluorine
Change calcium and carry out wet grinding, ore grinding time 20min so that the mol ratio of fluorine ion and gold ion is 3：1, control metallized pellet
With the ratio of Leaching of Gold Using Thiosulfate liquid so that metallic iron rubs with gold ion in Leaching of Gold Using Thiosulfate liquid in metallized pellet
You are than being 100：1, thiosulfate gradually with iron granule occur displacement reaction generation elemental gold, and with unreacted metal
Iron particle, impurity etc. are all levigate to account for more than 90% to below 0.074mm, obtains grinding slurry；
[3] grinding slurry is subjected to separation of solid and liquid, obtains solid mixture and filtrate, wherein solid mixture is metal
Iron, elemental gold and mine tailing composition, filtrate are the solution containing ferrous ion, and the concentration of its gold ion is less than 0.01mg/L；
[4] solid mixture is subjected to gravity treatment, obtains elemental gold and light mixture；
[5] light mixture is subjected to magnetic separation, obtains the iron granule and mine tailing of TFe grades 91.16%；
[6] quick lime is added into filtrate, iron ion is generated hydroxide iron precipitate, then aoxidized after calcining
Iron oxide red product.
Example IV
[1] it will obtain being rich in metallic iron after " lateritic nickel ore-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT
Particle, degree of metalization are 60%, and temperature is that 1000 DEG C of thermal state metal pellet carries out water quenching, crushed, and obtains the broken of below 2mm
Broken material；
[2] broken material is sent into ball mill, the concentration for adding gold ion is 10mg/L Leaching of Gold Using Thiosulfate liquid, fluorine
Change calcium and carry out wet grinding, ore grinding time 35min so that the mol ratio of fluorine ion and gold ion is 1：1, control metallized pellet
With the ratio of Leaching of Gold Using Thiosulfate liquid so that metallic iron rubs with gold ion in Leaching of Gold Using Thiosulfate liquid in metallized pellet
You are than being 10：1, thiosulfate gradually with dilval particle occur displacement reaction generation elemental gold, and with unreacted nickel
Ferroalloy particles, impurity etc. are all levigate to account for more than 80% to below 0.074mm, obtains grinding slurry；
[3] grinding slurry is subjected to separation of solid and liquid, obtains solid mixture and filtrate, wherein solid mixture closes for ferronickel
Gold grain, elemental gold and mine tailing composition, filtrate are the solution containing ferrous ion, and the concentration of its gold ion is less than 0.01mg/L；
[4] solid mixture is subjected to gravity treatment, obtains elemental gold and light mixture；
[5] light mixture is subjected to magnetic separation, it is the high dilval that 10.51%, Iron grade is 61.02% to obtain nickel grade
Particle and mine tailing；
[6] quick lime is added into filtrate, iron ion is generated hydroxide iron precipitate, then aoxidized after calcining
Iron oxide red product.
Contrast test one
Will be after " lateritic nickel ore-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT, it is 80% to obtain degree of metalization
Thermal state metal pellet, ball mill ore grinding is sent into after water quenching, ore grinding time 50min obtains fineness and accounted for for below 0.074mm
More than 70% grinding slurry, grinding slurry is separated through magnetic separation, obtains nickel grade 6.03%, the ferronickel of Iron grade 65.57% is closed
Gold grain.
Contrast test two
Will be after " nickel fibers slag-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT, it is 85% to obtain degree of metalization
Thermal state metal pellet, ball mill ore grinding is sent into after water quenching, ore grinding time 40min obtains fineness and accounted for for below 0.074mm
More than 70% grinding slurry, grinding slurry is separated through magnetic separation, obtains nickel grade 0.89%, the low ferronickel of Iron grade 92.35%
Alloying pellet.
Contrast test three
Will be after " iron ore concentrate-be reduced directly with carbon pellets-rotary hearth furnace " PROCESS FOR TREATMENT, it is 90% to obtain degree of metalization
Thermal state metal pellet, sends into ball mill ore grinding after water quenching, and ore grinding time 30min obtains fineness and accounted for for below 0.074mm
More than 70% grinding slurry, grinding slurry is separated through magnetic separation, obtains the iron granule of Iron grade 92.86%.
Claims (2)
1. a kind of dedicated system for handling thermal state metal pellet, it is characterised in that including：Thermal state metal pellet processing dress
Put, wet grinding device, equipment for separating liquid from solid, Gravity separation device, magnetic separating device, precipitation separation device and calcining are filled
Put；
The thermal state metal pellet processing unit is exported provided with thermal state metal pellet entrance and broken material；
The wet grinding device is provided with broken material entrance, Leaching of Gold Using Thiosulfate liquid entrance, inhibitor entrance and grinding material
Slurry outlet；
The equipment for separating liquid from solid is provided with grinding slurry inlet, solid mixture outlet and filtrate (liquid；
The Gravity separation device is provided with solids mixture inlet, elemental gold outlet and light mixture outlet；
The magnetic separating device is provided with light mixture inlet, metallic iron/ferroalloy particles outlet and mine tailing outlet；
The precipitation separation device is provided with filtrate inlet, quick lime entrance, ferrous hydroxide outlet and supernatant outlet；
The calciner plant is exported provided with ferrous hydroxide entrance and iron oxide red；
Wherein, the broken material outlet of the thermal state metal pellet processing unit and the broken material of the wet grinding device
Entrance is connected；
The grinding slurry outlet of the wet grinding device is connected with the grinding slurry inlet of the equipment for separating liquid from solid；
The solid mixture outlet of the equipment for separating liquid from solid is connected with the solids mixture inlet of the Gravity separation device；
The light mixture outlet of the Gravity separation device is connected with the light mixture inlet of the magnetic separating device；
The filtrate (liquid of the equipment for separating liquid from solid is connected with the filtrate inlet of the precipitation separation device；
The ferrous hydroxide outlet of the precipitation separation device is connected with the ferrous hydroxide entrance of the calciner plant.
2. according to the dedicated system described in claim 1, it is characterised in that：The wet grinding device is ball mill.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621020037.1U CN206385233U (en) | 2016-08-30 | 2016-08-30 | A kind of dedicated system for handling thermal state metal pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621020037.1U CN206385233U (en) | 2016-08-30 | 2016-08-30 | A kind of dedicated system for handling thermal state metal pellet |
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| CN206385233U true CN206385233U (en) | 2017-08-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435191A (en) * | 2016-08-30 | 2017-02-22 | 江苏省冶金设计院有限公司 | Treatment method and system of heat-state metallized pellet |
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2016
- 2016-08-30 CN CN201621020037.1U patent/CN206385233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435191A (en) * | 2016-08-30 | 2017-02-22 | 江苏省冶金设计院有限公司 | Treatment method and system of heat-state metallized pellet |
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