CN206385226U - A kind of dedicated system for handling roe shape high-phosphorus hematite - Google Patents
A kind of dedicated system for handling roe shape high-phosphorus hematite Download PDFInfo
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- CN206385226U CN206385226U CN201621260832.8U CN201621260832U CN206385226U CN 206385226 U CN206385226 U CN 206385226U CN 201621260832 U CN201621260832 U CN 201621260832U CN 206385226 U CN206385226 U CN 206385226U
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Abstract
The utility model discloses a kind of dedicated system for handling roe shape high-phosphorus hematite.The system includes raw material processing system, balling-up system, reduction roasting system, mill and selects system and acidleach processing system；Wherein, the compound entrance of balling-up system is connected with the outlet of raw material processing system compound；Reduction roasting system has pelletizing entrance and metallized pellet outlet, and pelletizing entrance is dried pelletizing outlet with balling-up system and is connected；Mill selects system to have metallized pellet entrance, metal iron powder outlet and tailings outlet；The acidleach processing system has metal iron powder entrance, sour entrance, Iron concentrate outlet and pickle liquor outlet, and the metal iron powder entrance selects the outlet of system metal iron powder to be connected with the mill.The utility model not only effectively make use of slag solid waste but also reach that iron recovery is up to 95% in preferable dephosphorization effect, Iron concentrate, and phosphorus removal efficiency is more than 90%, solves roe shape high-phosphorus hematite dephosphorization difficulty, the problem of disposal ability is low.
Description
Technical field
The utility model is related to a kind of dedicated system for handling roe shape high-phosphorus hematite, belongs to the comprehensive of roe shape high-phosphorus hematite
Conjunction utilizes field.
Background technology
Being mainly characterized by for China iron deposit stone is poor, thin and miscellaneous, and average Iron grade is 32%, and the iron ore of wherein most is needed
Carry out ore dressing processing.There are 3,000,000,000 tons of roe shape high-phosphorus hematites in China, and this iron ore is containing P high (0.4-1.0%), grade
Between 35%-50%, iron oxide crystal grain disseminated grain size is thin (1-3 μm), and it is extremely difficult to sort separation, thus is not opened effectively
Adopt utilization.
Roe shape high-phosphorus hematite has oolitic texture, and it is embedding that bloodstone mixes numerous shape in flakey, threadiness with gangue mineral
Phosphorus preservation in cloth, ore is in collophane, and, formation concentric layered shell polysaccharide phase mixed in together with the chamosite rich in iron oxide
Between oolith structure；If not changing the occurrence status of iron, iron selected can not be just enriched with, and phosphorus also can not be rejected effectively.Due to its ore deposit
Thing design feature, the ore dressing difficulty of oolitic hematite is very big, and dephosphorization is difficult, and disposal ability is low.The country is to oolitic hematite at present
The ore dressings such as the substantial amounts of reverse flotation of strong magnetic one, the gravity treatment of strong magnetic one, flotation, reverse flotation and high-gradient magnetic separation experiment has been carried out, but all
It is difficult to obtain preferable sorting index.
Chinese Patent Application No. is provided in a kind of high-phosphorus hematite for CN201010033784.X utility model patent
P elements and the method for ferro element physics dissociation, specifically include following steps：High-phosphorus hematite is roughly ground, sieved, dry after make
Ultrafine Grinding is carried out with high velocity air mill technology, the high-phosphorus hematite of the mesh of normal granulometry 80~200 is finely ground to particle mean size for 2 μm
Ultra-fine, the high-phosphorus hematite particle size distribution range after fine grinding is 102nm~104nm, make P elements, ferro element dissociation.
The utility model patent, which implements raw material, need to carry out Ultrafine Grinding, and condition requirement should not strictly be mass produced, and actual conditions phosphorus
Element, ferro element separation are insufficient.
Chinese Patent Application No. provides a kind of red iron of roe shape high phosphorus for CN200610124741.6 utility model patent
The beneficiation method of ore deposit, specifically includes following steps：By weight percentage composition by 80~99% it is broken after the red iron of roe shape high phosphorus
Ore deposit, 1~20% reducing agent coal dust load shaft furnace or rotary kiln is calcined, and sintering temperature is 700~1050 DEG C, during roasting
Between be 0.5~2.5h, sealing be cooled to room temperature.Roasted ore is subjected to low intensity magnetic separation after crushing, grinding again.Then magnetic separation is obtained
Rough concentrate adjust pH value to 8~12, add iron ore inhibitor 0.5~3.0kg/t of sulfonated starch, add activator 0.2~
2.0kg/t, is eventually adding 0.2~3.0kg/t of collecting agent and carries out reverse flotation.Major defect present in this method is as follows：
1. the utility model handles roe shape high-phosphorus hematite complex process, treatment effeciency is low.
2. raw material roasting use rotary kiln, reduction temperature is low, heat loss is big and kiln in easily ring formation, the calcination process time compared with
It is long, most long need 2.5 hours.
With the fast development of steel and iron industry, quickly, rich ore is fewer and fewer for iron ore deposit wear rate, it would be highly desirable to need exploitation
A kind of method of efficient process roe shape high-phosphorus hematite, improves dephosphorization efficiency, increases disposal ability.
Utility model content
Technical problem to be solved in the utility model is solved present in existing roe shape high-phosphorus hematite processing system
Dephosphorization it is difficult, there is provided a kind of system of processing side of new roe shape high-phosphorus hematite for the problems such as disposal ability is low, production cost is high
System, the system can effectively reduce production process energy consumption, improve utilization rate of equipment and installations, increase production capacity, reduce into production cost.
Technical problem to be solved in the utility model is achieved through the following technical solutions：
A kind of dedicated system for handling roe shape high-phosphorus hematite, the system is roasted by raw material processing system, balling-up system, reduction
Burning system, mill select system and acidleach processing system to constitute；Wherein, the raw material processing system there is roe shape high phosphorus to go out iron ore enter
Mouth, reduction coal entrance, copper ashes entrance and compound outlet；The balling-up system has compound entrance and dries pelletizing outlet,
The compound entrance is connected with the outlet of raw material processing system compound；The reduction roasting system has pelletizing entrance and metal
Pellet is exported, and the pelletizing entrance is dried pelletizing outlet with the balling-up system and is connected；The mill selects system to have metallization
Pelletizing entrance, metal iron powder outlet and tailings outlet；The acidleach processing system has metal iron powder entrance, sour entrance, iron essence
Powder is exported and pickle liquor outlet, and the metal iron powder entrance selects the outlet of system metal iron powder to be connected with the mill.
The utility model method adjusts raw material basicity, improves rotary hearth furnace by controlling reduction coal and slag in raw material to match
Interior distributing mode, effectively reduction production process energy consumption, improve utilization rate of equipment and installations, increase production capacity, reduce into production cost.This practicality is new
Type not only effectively make use of carbide slag solid waste but also reach in preferable dephosphorization effect, Iron concentrate iron recovery up to 93.52%, even
Up to 95%, dephosphorization rate is more than 90%, solves roe shape high-phosphorus hematite dephosphorization difficulty, and the problem of disposal ability is low realizes roe
The efficient utilization of shape high-phosphorus hematite.
The main beneficial effect of technical solutions of the utility model：
1. controlling the dual alkalinity of dispensing by being incorporated slag, roe shape high-phosphorus hematite is reduced by heating, makes iron ore
Metallic iron agglomeration is reduced into, by that effectively can be separated metal iron powder and phosphorous gangue after fine grinding magnetic separation, both effectively
Slag solid waste make use of to reach preferable dephosphorization effect again, metal iron powder further is carried out into acidleach processing effectively improves dephosphorization rate
More than 90%.
2. using different coal blending species pelletizings and layer-by-layer distribution mode, realize that multilayer pelletizing is synchronously reduced in stove, makes metal
Pelletizing reduction is abundant, and Iron concentrate and tailings are obtained through mill choosing, acidleach processing.
3. multilayer cloth can improve fabric thickness in stove, utilization rate of equipment and installations can be effectively improved, is ensureing that product index is qualified
On the premise of production capacity greatly improve, than conventional method production capacity improve 3-5 times.
Brief description of the drawings
The schematic diagram of the dedicated system of Fig. 1 the utility model processing roe shape high-phosphorus hematite.
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.But these embodiments are only exemplary, do not constitute any limitation to scope of the present utility model.
It will be understood by those skilled in the art that can be to the utility model skill under without departing from spirit and scope of the present utility model
The details and form of art scheme are modified or replaced, but these modifications and replacement each fall within protection domain of the present utility model
It is interior.
Embodiment 1
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (anthracite)=100: 15, and be incorporated slag controls the dual alkalinity of compound to be 0.3, and compound is mixed
Obtained low volatile briquet after even；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (bituminous coal)=100: 18,
And be incorporated slag and control the dual alkalinity of compound to be 0.3, high volatile briquet is made after mixing in compound；By low volatile
Briquet and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1150 DEG C of reduction roasting temperature, after 20 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is big
In 90%, iron recovery is up to 90.15% wherein in Iron concentrate.
Embodiment 2
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (meager coal)=100: 20, and be incorporated slag controls the dual alkalinity of compound to be 0.4, and compound is mixed
Low volatile briquet is made afterwards；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (lignite)=100: 28, and
Supplying slag controls the dual alkalinity of compound to be 0.4, and high volatile briquet is made after mixing in compound；By low-volatite coal
Pelletizing and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1200 DEG C of reduction roasting temperature, after 30 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is big
In 90%, iron recovery is up to 92.12% wherein in Iron concentrate.
Embodiment 3
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (lean coal)=100: 30, and be incorporated slag controls the dual alkalinity of compound to be 0.6, and compound is mixed
Low volatile briquet is made afterwards；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (jet coal)=100: 35,
And be incorporated slag and control the dual alkalinity of compound to be 0.6, high volatile briquet is made after mixing in compound；By low volatile
Briquet and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1300 DEG C of reduction roasting temperature, after 40 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is big
In 90%, iron recovery is up to 94.52% wherein in Iron concentrate.
Embodiment 4
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (lean coal)=100: 15, and be incorporated slag controls the dual alkalinity of compound to be 0.5, and compound is mixed
Low volatile briquet is made afterwards；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (jet coal)=100: 18,
And be incorporated slag and control the dual alkalinity of compound to be 0.5, high volatile briquet is made after mixing in compound；By low volatile
Briquet and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1300 DEG C of reduction roasting temperature, after 40 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is big
In 90%, iron recovery is up to 94.67% wherein in Iron concentrate.
Embodiment 5
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (meager coal)=100: 25, and be incorporated slag controls the dual alkalinity of compound to be 0.4, and compound is mixed
Low volatile briquet is made afterwards；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (lignite)=100: 32, and
Supplying slag controls the dual alkalinity of compound to be 0.4, and high volatile briquet is made after mixing in compound；By low-volatite coal
Pelletizing and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1200 DEG C of reduction roasting temperature, after 30 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is big
In 90%, iron recovery is up to 93.26% wherein in Iron concentrate.
Comparative example 1
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (anthracite)=100: 15, and be incorporated slag controls the dual alkalinity of compound to be 0.2, and compound is mixed
Obtained low volatile briquet after even；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (bituminous coal)=100: 18,
And be incorporated slag and control the dual alkalinity of compound to be 0.2, high volatile briquet is made after mixing in compound；By low volatile
Briquet and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1150 DEG C of reduction roasting temperature, after 20 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is
84%, iron recovery is 85.12% wherein in Iron concentrate.
Comparative example 2
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (meager coal)=100: 20, and be incorporated slag controls the dual alkalinity of compound to be 0.2, and compound is mixed
Low volatile briquet is made afterwards；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (lignite)=100: 28, and
Supplying slag controls the dual alkalinity of compound to be 0.2, and high volatile briquet is made after mixing in compound；By low-volatite coal
Pelletizing and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1200 DEG C of reduction roasting temperature, after 30 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate is
86%, iron recovery 87.21% wherein in Iron concentrate.Comparative example 3
Somewhere is contained into TFe42.66%, the roe shape high-phosphorus hematite containing P 0.22%, according to roe shape high-phosphorus hematite: low to wave
Sending out the mass ratio of point coal (lean coal)=100: 30, and be incorporated slag controls the dual alkalinity of compound to be 0.7, and compound is mixed
Low volatile briquet is made afterwards；According to roe shape high-phosphorus hematite: the mass ratio of high volatile coal (jet coal)=100: 35,
And be incorporated slag and control the dual alkalinity of compound to be 0.7, high volatile briquet is made after mixing in compound；By low volatile
Briquet and high volatile briquet after drying, rotary hearth furnace revolving burner substrate material area bottom are arranged according to high volatile briquet
Pelletizing is distributed into rotary hearth furnace progress by portion, the distributing mode that low volatile briquet is arranged in rotary hearth furnace revolving burner substrate material area upper strata
Reduction roasting, 1300 DEG C of reduction roasting temperature, after 40 minutes time, after gained metallized pellet water quenching through mill choosing processing so as to
To obtain metal iron powder and tailings respectively, then metal iron powder is subjected to acidleach processing further realizes that iron, phosphorus are separated, dephosphorization rate
84.6%, iron recovery is 87.62% wherein in Iron concentrate.
Referring to Fig. 1, a kind of dedicated system for realizing processing method provided by the utility model, by raw material processing system
S100, balling-up system S200, reduction roasting system S300, mill select system S400 and acidleach processing system S500 to constitute；Wherein, institute
Stating raw material processing system S100, there is roe shape high phosphorus to go out iron ore entrance 101, reduction coal entrance 102, copper ashes entrance 103 and compound
Outlet 104；The balling-up system S200 has compound entrance 201 and dries pelletizing outlet 202, the compound entrance and original
Expect that the outlet of processing system compound is connected；The reduction roasting system S300 has pelletizing entrance 301 and metallized pellet outlet
302, the pelletizing entrance is dried pelletizing outlet with the balling-up system and is connected；The mill selects system S400 to have metallized pellet
Entrance 401, metal iron powder outlet 402 and tailings outlet 403；The acidleach processing system S500 have metal iron powder entrance 501,
Sour entrance 502, Iron concentrate outlet 503 and pickle liquor outlet 504, the metal iron powder entrance select system metal iron powder with the mill
Outlet is connected.
The raw material processing system S100 includes drying plant, levigate equipment, screening plant and mixing apparatus；The pelletizing
System S200 includes balling-up equipment and drying equipment；
Described reduction roasting system S300 includes rotary hearth furnace and its supporting subsystem；
The mill selects system S400 to include water quenching, ore grinding, magnetic separation and filter plant；
The acidleach processing system S500 includes acid-leaching reaction equipment and its supporting processing equipment, Iron concentrate are rinsed and be dehydrated
Equipment.
Claims (6)
1. a kind of dedicated system for handling roe shape high-phosphorus hematite, it is characterised in that：By raw material processing system (S100), balling-up system
System (S200), reduction roasting system (S300), mill select system (S400) and acidleach processing system (S500) to constitute；Wherein, it is described
There is raw material processing system (S100) roe shape high phosphorus to go out iron ore entrance, reduction coal entrance, copper ashes entrance and compound outlet；It is described
Balling-up system (S200) has compound entrance and dries pelletizing outlet, the compound entrance and raw material processing system (S100)
Compound outlet is connected；There is the reduction roasting system (S300) pelletizing entrance and metallized pellet to export, and the pelletizing enters
Mouth is dried pelletizing outlet with the balling-up system (S200) and is connected；It is described mill select system (S400) have metallized pellet entrance,
Metal iron powder is exported and tailings outlet；There is the acidleach processing system (S500) metal iron powder entrance, sour entrance, Iron concentrate to go out
Mouth and pickle liquor outlet, the metal iron powder entrance select the outlet of system (S400) metal iron powder to be connected with the mill.
2. according to the dedicated system described in claim 1, it is characterised in that：The raw material processing system (S100) sets including drying
Standby, levigate equipment, screening plant and mixing apparatus.
3. according to the dedicated system described in claim 1, it is characterised in that：The balling-up system (S200) include balling-up equipment with
And drying equipment.
4. according to the dedicated system described in claim 1, it is characterised in that：Described reduction roasting system (S300) includes turning bottom
Stove and its supporting subsystem.
5. according to the dedicated system described in claim 1, it is characterised in that：It is described mill select system (S400) include water quenching, ore grinding,
Magnetic separation and filter plant.
6. according to the dedicated system described in claim 1, it is characterised in that：It is anti-that the acidleach processing system (S500) includes acidleach
Equipment and its supporting processing equipment, Iron concentrate is answered to rinse and dehydration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260832.8U CN206385226U (en) | 2016-11-09 | 2016-11-09 | A kind of dedicated system for handling roe shape high-phosphorus hematite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260832.8U CN206385226U (en) | 2016-11-09 | 2016-11-09 | A kind of dedicated system for handling roe shape high-phosphorus hematite |
Publications (1)
| Publication Number | Publication Date |
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| CN206385226U true CN206385226U (en) | 2017-08-08 |
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ID=59486799
Family Applications (1)
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|---|---|---|---|
| CN201621260832.8U Expired - Fee Related CN206385226U (en) | 2016-11-09 | 2016-11-09 | A kind of dedicated system for handling roe shape high-phosphorus hematite |
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| Country | Link |
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| CN (1) | CN206385226U (en) |
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2016
- 2016-11-09 CN CN201621260832.8U patent/CN206385226U/en not_active Expired - Fee Related
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