CN106088694B - Lateritic nickel ore raw material storage and lateritic nickel ore stock preparation system - Google Patents
Lateritic nickel ore raw material storage and lateritic nickel ore stock preparation system Download PDFInfo
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- CN106088694B CN106088694B CN201610402785.4A CN201610402785A CN106088694B CN 106088694 B CN106088694 B CN 106088694B CN 201610402785 A CN201610402785 A CN 201610402785A CN 106088694 B CN106088694 B CN 106088694B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
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Abstract
The present invention relates to a kind of lateritic nickel ore raw material storage, including storehouse, space includes storing area and dispensing area in storehouse；Include lateritic nickel ore storehouse, quick lime storehouse and reducing agent storehouse in storing area, storing area has the feed(raw material)inlet that corresponding raw material is conveyed to each raw material cabin；Include dry domain and dispensing domain in dispensing area, for vexed heap to be dehydrated to lateritic nickel ore, dispensing domain, which receives, carrys out the raw material in self-desiccation domain and reducing agent storehouse to prepare raw materials for sintering in dry domain for lateritic nickel ore and quick lime；Dispensing area is exported with formulation, dispensing domain and formulation outlet.In the present invention, the operation such as material storage and dispensing carries out in closing storehouse, from wind and rain climatic effect, ensures that the normal table of production operation carries out；Without material loss, production operation is to external environment condition without airborne dust, noise, contaminated wastewater.Lateritic nickel ore is all handled by quick lime dehydration and drying, is follow-up sintering, is smelted and save energy consumption.
Description
Technical field
The invention belongs to the technical field using lateritic nickel ore ironmaking, and in particular to a kind of lateritic nickel ore raw material storage and laterite
Nickel minerals stock preparation system.
Background technology
Primary raw material of the lateritic nickel ore as production ferronickel, all needs to be stored up raw material before smelting in the raw material preparation stage
Deposit, dry, whole grain, dispensing, can just be sent to sintering for agglumeration after the processing such as mixing.Say that raw ore contains from the property of raw material of lateritic nickel ore
Free water and the crystallization water are generally in 30% or so (20% or so free water and 10% or so the crystallization water) so that smelt tired
Difficulty, raw material must be calcined through oversintering, and stove smelting can be entered after fully dry and prereduction.Ore nickel content improves according to statistics
0.1%, production cost can reduce by 3%~4%, instead then on the contrary；Make raw material drying, granularity, component uniform in the raw material preparation stage,
Facilitate scale-up, improve equipment and heat utilization coefficient.Therefore, lateritic nickel ore stock preparation system technique is directly closed
It is the quality and the performance of enterprises to ferro-nickel product.
Compared with prepared by the huge conventional metallurgical raw material of scale and production capacity, dilval smelts opposite Ferrous Metallurgy yield rule
Mould is smaller, the user of raw material service is also more single.Due to being influenced by Feedstock treating scale, extensively should in traditional raw material field
The advantage handled in big handling capacity, the preparation processing of existing lateritic nickel ore can not be played with large-scale heap reclaimer device do mechanization operation
Basic is exactly that, with knowhow substitute technology, no system integration can by the artificial and free operation of engineering truck on vacant lot
Speech, scientific quantification parametrization production be even more does not know where to begin, there is presently no a kind of whole process, it is integrated, scientific based on
The raw materials for sintering preparation system of lateritic nickel ore.
Influenced by property of raw material, the moisture content of lateritic nickel ore is high and viscous soil characteristics, storage can not be realized, in storage shape
In formula based on bulk storage stockpiling naturally.The randomness of stockpiling and the do mechanization operation that can not be unfolded, on the one hand cause production effect
Rate it is low, on the other hand, airborne dust, noise, waste water in production have seriously polluted the environment；For using small furnace method production nickel
The enterprise of iron, it is particularly problematic caused by this extensive mode of production.
The content of the invention
The embodiment of the present invention provides a kind of lateritic nickel ore raw material storage and lateritic nickel ore stock preparation system, can at least solve existing
There is the segmental defect of technology.
The present embodiments relate to a kind of lateritic nickel ore raw material storage, including storehouse, space includes storing in the storehouse
Area and dispensing area；Include lateritic nickel ore storehouse, quick lime storehouse and reducing agent storehouse in the storing area, the storing area has to each
The feed(raw material)inlet of the corresponding raw material of raw material cabin conveying；Include dry domain and dispensing domain in the dispensing area, from the laterite nickel
Vexed heap is to dehydrate lateritic nickel ore in the dry domain for the lateritic nickel ore of ore storage bin and the quick lime in quick lime storehouse, institute
State dispensing domain and receive the raw material from the dry domain and the reducing agent storehouse to prepare raw materials for sintering；The dispensing area, which has, matches somebody with somebody
The outlet of system material, the dispensing domain and the formulation outlet.
As one of embodiment, the lateritic nickel ore storehouse and quick lime storehouse arranged adjacent, and adjacent to described dry
Dry domain.
As one of embodiment, the dry domain and the reducing agent storehouse are adjacent to the dispensing domain.
As one of embodiment, passage is run formed with raw material carrier vehicle in the storehouse, the operation passage is described in
Feed(raw material)inlet extends to the storehouse headwall side for being right against the feed(raw material)inlet, and space in the storehouse is separated to form as the storage
Expect area and the dispensing area；Each raw material cabin in the storing area is arranged along the operation channel-length direction, the dry domain
Arrange with the dispensing domain along the operation channel-length direction.
As one of embodiment, the dry domain includes two material stockyards, and the two material stockyards are divided to row the dispensing domain two
Side；The lateritic nickel ore storehouse and the quick lime storehouse are correspondingly arranged two, and there is the laterite in the reducing agent storehouse per side
Nickel minerals storehouse and a quick lime storehouse.
The granulating mechanism that whole grain classification is carried out to lateritic nickel ore is equipped with as one of embodiment, in the dispensing domain, and it is right
Granularity is stored up 10~30mm's in the big granularity mineral aggregate stockyard and small grain size mineral aggregate stockyard that should be configured, the big granularity mineral aggregate stockyard
Big granularity mineral aggregate, the small grain size mineral aggregate of the small grain size mineral aggregate stockyard stockpiling granularity≤10mm.
As one of embodiment, it is equipped with the dispensing domain：
For being connected to the formulation output device of sintering machine, the formulation output device extend out to the formulation and goes out
Outside mouthful；
For exporting the big granularity mineral aggregate using the first dosage bunker as hearth layer for sintering and the output small grain size ore deposit
Second dosage bunker of material, first dosage bunker are connected with the formulation output device, and second dosage bunker passes through first
Dosing device is connected with the formulation output device；
Reducing agent dosage bunker, the reducing agent dosage bunker arrival end are held in the mouth by material transfer device and the reducing agent storehouse
Connect, the port of export is connected by the second dosing device with the formulation output device；
Flux dosage bunker, the flux dosage bunker arrival end are connected with the quick lime storehouse by material transfer device, gone out
Mouth end is connected by the 3rd dosing device with the formulation output device.
As one of embodiment, the formulation output device includes being used for the first deferent segment and use for connecting each dosage bunker
Between the second deferent segment for being connected to sintering machine, first deferent segment and second deferent segment be equipped be used for will be described small
Mixing arrangement that granularity mineral aggregate and reducing agent and flux mix simultaneously is connected by the mixing arrangement.
As one of embodiment, the lateritic nickel ore raw material storage further includes automatic control system, the automatic control system
Including central controller, the central controller memory contains the nature parameters of each raw material and is calculated by the nature parameters of each raw material
The proportion scheme of generation；
The material level detection mechanism that the corresponding raw material of detection is measured in storehouse is equipped with each raw material cabin, each material level detection mechanism is equal
It is electrically connected with the input terminal of the central controller, first dosing device, second dosing device, the 3rd
The operating circuit of dosing device and each dosage bunker is electrically connected with the central controller input terminal.
The present embodiments relate to a kind of lateritic nickel ore stock preparation system, including lateritic nickel ore raw material storage as described above
And sintering machine, the sintering machine are connected with formulation outlet.
The embodiment of the present invention at least realizes following beneficial effect：
(1) operation such as material storage and dispensing carries out in closing storehouse, from wind and rain climatic effect, ensures that production is made
The normal table of industry carries out；Without material loss, production operation, without airborne dust, noise, contaminated wastewater, does not increase production to external environment condition
Cost, does not cause environmental pollution.
(2) lateritic nickel ore is all handled by quick lime dehydration and drying, is follow-up sintering, is smelted and save energy consumption.
(3) storing area and dispensing area main plot divide, and are closely connected but do not interfere with each other between twoth area, realize big unification, it is small not
Same planning general layout, facilitates centralized management and section in the area in storing area and dispensing area to coordinate and manage, including physical state management,
Environmental management etc., wherein, environmental management includes managing dust removal, discharge of wastewater management, clunk management etc. again.
(4) heap feeding mode of the vexed heap operation using tiling interception is puddled, it is ensured that dehydration efficiency and mixed effect.Expect heap
Field sets 2, realizes that a pile one takes alternately operating, one is the material heap for completing dehydration and drying, ensures to produce feeding, another is
Just in the material heap of vexed heap dehydration, it ensure that inside material heap there is the enough dehydration time.
(5) smooth docking between each operation, cancels the conveying linking flow between conventional processes, realizes the highly integrated of system,
So as to reduce storehouse floor space, raw material reserves 20% or so, unit area soil profit can be improved under equal land area
Reduce primary construction with the raising of rate to invest, reduce later stage material loss and production and operation cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the plane figure schematic diagram of lateritic nickel ore raw material storage provided in an embodiment of the present invention；
Fig. 2 is along the sectional view of A-A in Fig. 1；
Fig. 3 is along the sectional view of B-B in Fig. 1；
Fig. 4 is along the sectional view of C-C in Fig. 1；
Fig. 5 is along the sectional view of D-D in Fig. 1；
Fig. 6 is along the sectional view of E-E in Fig. 1；
Fig. 7 is the flow diagram provided in an embodiment of the present invention smelted iron using lateritic nickel ore；
Fig. 8 is the flow diagram of lateritic nickel ore sieving approach provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
Such as Fig. 1-Fig. 6, the embodiment of the present invention provides a kind of lateritic nickel ore raw material storage, including storehouse 1, the storehouse 1 are surrounding
If wall skin, roof set the building of roof system.Space includes storing area and dispensing area in the storehouse 1；The storing area Nei Bao
Lateritic nickel ore storehouse 2, quick lime storehouse 3 and reducing agent storehouse 4 are included, the storing area has the original that corresponding raw material is conveyed to each raw material cabin
Expect entrance；Wherein, lateritic nickel ore storehouse 2 is used to store lateritic nickel ore, and quick lime storehouse 3 is used to store quick lime, and reducing agent storehouse 4 is used for
Store reducing agent；Usually, each raw material is conveyed into storehouse 1 by transport vehicle, i.e., above-mentioned raw materials entrance is that can hold transport vehicle
Current entrance.Include dry domain and dispensing domain in the dispensing area, lateritic nickel ore and life from the lateritic nickel ore storehouse 2
To be dehydrated to lateritic nickel ore, the dispensing domain receives and comes from vexed heap the quick lime of lime silo 3 in the dry domain
The raw material in the dry domain and the reducing agent storehouse 4 is to prepare raw materials for sintering；The dispensing area is exported with formulation, described to match somebody with somebody
Expect domain and the formulation outlet.In dry domain, lateritic nickel ore puddles vexed heap with quick lime, and above-mentioned quick lime is preferably
Using the quick lime of purity more than 90%, addition is to account for 5~20% (percentage by weights) of lateritic nickel ore, so not only can be right
Lateritic nickel ore is dehydrated, moreover it is possible to pre- heat mixture, and in follow-up sintering, quick lime can continue to act as flux
With.In the present embodiment, lateritic nickel ore is about 10 by weight with quick lime:1 proportioning mixes in dry domain, preferably uses
Tile mode layer, to fully absorb the free water in lateritic nickel ore.
Continue the arrangement of above-mentioned lateritic nickel ore raw material storage, it is preferable that the lateritic nickel ore storehouse 2 and the quick lime storehouse
3 arranged adjacents, and adjacent to the dry domain；The dry domain and the reducing agent storehouse 4 adjacent to the dispensing domain, by
Raw material cabin feeding, drying domain cloth, be closely connected and do not interfere with each other in each operation operations such as dispensing domain dispensings, effectively improves life
Produce efficiency.Further preferably, such as Fig. 1, the storehouse 1 is interior to run passage formed with raw material carrier vehicle, and the passage that runs is from institute
State feed(raw material)inlet to the 1 headwall side of storehouse for being right against the feed(raw material)inlet to extend, and space in the storehouse 1 is separated to form as institute
State storing area and the dispensing area；Each raw material cabin in the storing area is described dry along the operation channel-length direction arrangement
Dry domain and the dispensing domain are arranged along the operation channel-length direction.Wherein, in the present embodiment, the dry domain is preferably to wrap
Two material stockyards 6 are included, row dispensing domain both sides are divided in the two material stockyards 6；The lateritic nickel ore storehouse 2 and the quick lime storehouse 3
Two are correspondingly arranged, there are a lateritic nickel ore storehouse 2 and a quick lime storehouse 3 in the reducing agent storehouse 4 per side.When
So, the arrangement in above-mentioned storing area and dispensing area can also have following manner：Exemplified by drying domain and include two material stockyards 6, match somebody with somebody
Material domain is located at 1 centre position of storehouse, and row dispensing domain both sides are divided in two material stockyards 6, and each side of the material stockyard 6 away from dispensing domain is adjacent
It is disposed with a lateritic nickel ore storehouse 2 and all one's life lime silo 3.
Such as Fig. 1, in the present embodiment, using preceding kind of arrangement, i.e. the operation of row raw material carrier vehicle is distinguished in storing area and dispensing
Passage both sides, dispensing domain are located at 1 centre position of storehouse, each raw material cabin and two material stockyards 6 and are set around dispensing domain.This arrangement side
Formula has the following advantages：
(1) operation such as material storage and dispensing carries out in closing storehouse 1, from wind and rain climatic effect, ensures production
The normal table of operation carries out；Without material loss, production operation, without airborne dust, noise, contaminated wastewater, does not increase life to external environment condition
Cost is produced, does not cause environmental pollution.
(2) storing area and dispensing area main plot divide, and are closely connected but do not interfere with each other between twoth area, realize big unification, it is small not
Same planning general layout, facilitates centralized management and section in the area in storing area and dispensing area to coordinate and manage, including physical state management,
Environmental management etc., wherein, environmental management includes managing dust removal, discharge of wastewater management, clunk management etc. again.Such as raised in storehouse 1
Dirt pits sets scattered dedusting, is controlled airborne dust situation；It is unified inside and outside storehouse 1 that pumping equipment is set, set sedimentation basin etc. unified
Collect the waste water of the outer row of processing.Wherein, in the present embodiment, between adjacent feed storehouse, it is empty that corresponding storage is separated to form with barricade
Between so that close, saving space is arranged between raw material cabin, while shortens work flow；In barricade bottom, osculum, material are set
Separate out water to arrange to outside storehouse 1 by the osculum, set and collected by the draining outside storehouse 1, above-mentioned osculum is mainly for red
Native nickel minerals storehouse 2 is set.Head room is depending on production scale in storehouse 1, and in the present embodiment, head room is in 11m in storehouse 1
Left and right, material stack height about 6m in each raw material cabin, wall height are the compartmentation that can be achieved between different material in 3m or so.
(3) smooth docking between each operation, cancels the conveying linking flow (such as rear kind arrangement) between conventional processes, realizes
System it is highly integrated, so as to reduce 1 floor space of storehouse, it is left that raw material reserves 20% can be improved under equal land area
The right side, the raising of unit area land utilization ratio reduce primary construction investment, reduce later stage material loss and production and operation cost.
(4) lateritic nickel ore is all handled by quick lime dehydration and drying, is follow-up sintering, is smelted and save energy consumption.It is mixed
Mix heap feeding mode of the vexed heap operation using tiling interception, it is ensured that dehydration efficiency and mixed effect.Expect that stockyard 6 sets 2, in fact
Now a pile one takes alternately operating, and one is the material heap for completing dehydration and drying, ensures production feeding, another is just to be dehydrated in vexed heap
Material heap, ensure that material heap inside have the enough dehydration time.
Continue the structure of above-mentioned lateritic nickel ore raw material storage, and usually, lateritic nickel ore is by the more soil property of weathering
Fine ore and the less stone mass ore deposit of rate of decay are formed, both respectively have feature：The higher and component of the nickeliferous taste of fine ore is uniform, but contains
Free water is more, without broken；The nickeliferous taste of lump ore is relatively low and uneven, but less containing free water, need to be crushed to corresponding conjunction
Lattice granularity.For this reason, being equipped with the granulating mechanism that whole grain classification is carried out to lateritic nickel ore in the dispensing domain, and correspond to the big of configuration
Big granularity of the granularity in 10~30mm is stored up in granularity mineral aggregate stockyard 7 and small grain size mineral aggregate stockyard 8, the big granularity mineral aggregate stockyard 7
The small grain size mineral aggregate of granularity≤10mm is stored up in mineral aggregate, the small grain size mineral aggregate stockyard 8.Above-mentioned granulating mechanism include screening plant and
Crushing plant, such as Fig. 1, Fig. 6 and Fig. 8, specifically includes：First screening plant 9, the second screening plant 10 and the first breaker
11, wherein, the first screening plant 9 is used to sieve lateritic nickel ore raw ore, obtains the first oversize and the first minus mesh, the
One oversize is crushed to obtain broken material into the first breaker 11, and the first minus mesh is delivered to above-mentioned with above-mentioned broken material
Second screening plant 10 is sieved, and obtains the second oversize and the second minus mesh, and the second oversize is as hearth layer for sintering, and
Two minus mesh are sent to sintering machine after then being mixed with other auxiliary materials and are sintered.Wherein, the particle diameter of the first oversize is more than 30mm first
The particle diameter of minus mesh is then≤30mm；First oversize is crushed to particle diameter≤30mm by the first breaker 11；Second oversize
Particle diameter be 10~30mm, the particle diameter of the second minus mesh is≤10mm.Above-mentioned first screening plant, 9 and second screening plant 10 is excellent
Elect as and use circular cone rotary screen, above-mentioned first breaker 11 is preferably to use jaw crusher.
Such as Fig. 1, above-mentioned first screening plant 9, the second screening plant 10 and the first breaker 11 are preferably to be transported along raw material
Defeated car operation channel-length direction arrangement, wherein, it is broken that the first screening plant 9 is preferably located at the second screening plant 10 and first
Between device 11, in order to which the first oversize and the first minus mesh are sent to the first breaker 11 and the second screening plant respectively
10, improve treatment effeciency；Above-mentioned big granularity mineral aggregate stockyard 7 and small grain size mineral aggregate stockyard 8 are preferably to run to lead to along raw material carrier vehicle
Road length direction is arranged in order, and is arranged adjacent to above-mentioned second screening plant 10, consider the second oversize amount compared to
The amount of second minus mesh is small, and the subsequent treatment process of the second minus mesh is complicated compared with the second oversize, therefore, big granularity ore deposit
Material stockyard 7 is located at the side that small grain size mineral aggregate stockyard 8 is exported away from formulation.In addition, above-mentioned first screening plant 9, second sieves
10 and first breaker 11 of separating device is located at above-mentioned big granularity mineral aggregate stockyard 7 and small grain size mineral aggregate stockyard 8 and is transported close to raw material
(above-mentioned first screening plant 9, the second screening plant 10 and the first breaker 11 are preferably close to original for the side of car operation passage
Expect transport vehicle operation passage arrangement, to save space, shorten process flow), since the first screening plant 9 is from two of dry domain
Expect 6 feeding of stockyard, above-mentioned arrangement is so that two material stockyards 6 in above-mentioned dry domain are corresponded to close to raw material carrier vehicle operation passage cloth
Put, i.e., two material stockyards 6 in dry domain and the distance in lateritic nickel ore storehouse 2 and quick lime storehouse 3 are closer to can shorten process flow.
As one of embodiment, it is equipped with the dispensing domain：
For being connected to the formulation output device 14 of sintering machine, the formulation output device 14 extend out to the preparation
Material outlet is outer；
For exporting the big granularity mineral aggregate using the first dosage bunker as hearth layer for sintering and the output small grain size ore deposit
Second dosage bunker of material, first dosage bunker is connected with the formulation output device 14, and second dosage bunker passes through the
A certain amount of charging gear is connected with the formulation output device 14；
Reducing agent dosage bunker, the reducing agent dosage bunker arrival end are held in the mouth by material transfer device and the reducing agent storehouse 4
Connect, the port of export is connected by the second dosing device with the formulation output device 14；
Flux dosage bunker, the flux dosage bunker arrival end are connected with the quick lime storehouse 3 by material transfer device, gone out
Mouth end is connected by the 3rd dosing device with the formulation output device 14.
Above-mentioned formulation output device 14, each dosage bunker 12 and each charging gear form formulation pipeline；Usually,
Configuration adhesive is needed in lateritic nickel ore sintering, for using production technology of the quick lime as flux and adhesive, without in addition
Adhesive dosage bunker is set, for using the technique as adhesive such as bentonite, then needing in addition to set adhesive dosage bunker, phase
Ying Di, can add adhesive storehouse in storing area；In addition, can also add returning charge dosage bunker, for by dedusting ash, the returning charge such as return mine
It is incorporated in lateritic nickel ore.Wherein, above-mentioned formulation output device 14 is preferably to use ribbon conveyer, it is transported along raw material carrier vehicle
Row of channels length direction is disposed to extend；Above-mentioned first dosing device preferably comprises frequency control disk feeder and electronics
Belt conveyer scale, above-mentioned second dosing device, the 3rd dosing device preferably use belted electronic balance or helix balance.On
The accurate proportioning that each dosing device ensures lateritic nickel ore and each auxiliary material is stated, ensures dispensing effect, it is poor to avoid dispensing effect
And influence the reproducibility of subsequent production ferronickel.Wherein, the coal or coke powder as reducing agent are by a certain amount of iron and whole nickel elements
It is able to reduce required reduction dosage supplying；It is incorporated as the quick lime of flux and adhesive by basicity requirement, according to swelling
Soil be used as adhesive, its amount of allocating be generally formulation output (i.e. the gross weight of lateritic nickel ore and each auxiliary material) 1%~
2%；The returning charges such as dedusting ash, general 5% (percentage by weight) by dispensing base unit weight are incorporated.The quantity of each dosage bunker 12 is according to actual work
Depending on condition, in the present embodiment, the quantity of the second dosage bunker for conveying small grain size lateritic nickel ore is 5, reducing agent dosage bunker
For 2, dosage bunker 2 of returning mine, dedusting ash dosage bunker 1, flux dosage bunker 1 or 2.
Further, the formulation output device 14 includes the first deferent segment for connecting each dosage bunker 12 and is used for
The second deferent segment of sintering machine is connected to, is equipped with and is used for the granule between first deferent segment and second deferent segment
Spend the mixing arrangement 13 that mineral aggregate is mixed with reducing agent and flux and be connected by the mixing arrangement 13.I.e. on formulation pipeline
Equipped with mixing arrangement 13, the raw material being incorporated through each dosing device is mixed, ensures the mixed effect of each raw material, is dropped
The uneven fluctuation of low material quality influence caused by subsequent production, to improve follow-up sintering effect and ferronickel production effect.It is above-mentioned
Mixing arrangement 13 can use the common mixing arrangements 13 such as trommel mixer；Above-mentioned mixing arrangement 13 can be arranged in storehouse 1, can also be set
In outside storehouse 1, such as Fig. 1 and Fig. 3, in the present embodiment, which is arranged on outside storehouse 1 close to the outlet of above-mentioned formulation.
Further illustrate the structure of this raw material storage, vexed heap dehydration is puddled for carrying out lateritic nickel ore using two material stockyards 6
Situation, that is, be corresponding with two lateritic nickel ore storehouses 2 and two quick lime storehouses 3, can set above-mentioned raw materials transport vehicle operation passage pass through
Logical storehouse 1, i.e. 1 both ends Jun Youyi feed(raw material)inlets of storehouse.In storehouse 1 make heap, feeding operation can be by wheel loader 15, wheeled
The grade of excavator 16 is completed, specifically, each raw material cabin windrow, by lateritic nickel ore storehouse 2 and 3 feeding of quick lime storehouse to expecting that stockyard 6 puddles
Vexed heap operation etc. can be completed by wheel excavator 16, can be by wheeled dress by puddling vexed 6 feeding of windrow stockyard to the first screening plant 9
Carrier aircraft 15 is completed, and can be completed to each 12 feeding of dosage bunker by wheel loader 15.Raw material carrier vehicle operation passage can be used as above-mentioned
The operation passage of wheel loader 15, wheel excavator 16.In addition, motor grab, bridge crane can be also set in storehouse 1
Deng operation at least partly to substitute the function of above-mentioned vehicle operation.First screening plant 9, the second screening plant 10 and first are broken
It can be connected between device 11 by ribbon conveyer.In addition, reducing agent storehouse 4 nearby can configure the second breaker 5, by reducing agent
The granularity of qualification is crushed to, which is preferably located at the other raw material adjacent with wherein side of reducing agent storehouse 4
Between storehouse, to ensure the uniformity and smoothness of storing plot structure arrangement, which is preferably to be crushed using four-roller
Machine.
The present embodiment solves lateritic nickel ore raw material system in the prior art by the arrangement of making rational planning in space in storehouse 1
It is standby to handle extensive unordered production status；Smooth docking between each operation, work flow shorten, and operating efficiency is effectively lifted,
And operation is not interfere with each other between each operation, do mechanization operation is unfolded.
As one of embodiment, the lateritic nickel ore raw material storage further includes automatic control system, the automatic control system
Including central controller, the central controller memory contains the nature parameters of each raw material and is calculated by the nature parameters of each raw material
The proportion scheme of generation；
The material level detection mechanism that the corresponding raw material of detection is measured in storehouse is equipped with each raw material cabin, each material level detection mechanism is equal
It is electrically connected with the input terminal of the central controller, first dosing device, second dosing device, the 3rd
The operating circuit of dosing device and each dosage bunker 12 is electrically connected with the central controller input terminal.
For above-mentioned automatic control system, control room can be set in storehouse 1；Above-mentioned central controller uses computer；
Above-mentioned proportion scheme is automatically generated by computer according to database data, after operating personnel confirm, can be sent operating automatically and be referred to
Make and generate runs report, tracking is measured in storehouse by system each raw material cabin of control completion, dosage bunker 12 is fed, dosing
The operations such as amount control.Wherein, to meet proportioning accuracy requirement, the feeding coal of each dosing device uses closed circuit control, realizes
The automated control of blending process.
Include but not limited to following picture in above-mentioned control room：Process monitoring picture, parameter setting picture, equipment and control
System diagnostics picture, fault alarm picture, trend record picture, accounting logging picture.
By above-mentioned automatic control system, it is connected with reference to the topology layout in dispensing area with the orderly of material transferring equipment and fixed
Measure the automated job of weighing equipment etc. so that this raw material storage can obtain the control of scientific quantification, the life of precise and stable dispensing
Production is achieved.In addition, can according to engineering actual conditions etc., adjust storehouse 1 size, layout structure in storehouse 1, material stack height,
The parameter such as raw material type and reserves, with achieve the purpose that stablize, effectively, efficiently produce.
Embodiment two
The present embodiments relate to a kind of lateritic nickel ore stock preparation system, including the lateritic nickel ore such as the offer of embodiment one
Raw material storage and sintering machine, the sintering machine are connected with formulation outlet.Such as Fig. 7, matched somebody with somebody by what lateritic nickel ore raw material storage was prepared
After system material enters sintering machine sintering, it is used for smelting ferronickel into blast furnace.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (8)
- A kind of 1. lateritic nickel ore raw material storage, it is characterised in that：Including storehouse, space includes storing area and dispensing area in the storehouse；Include lateritic nickel ore storehouse, quick lime storehouse and reducing agent storehouse in the storing area, the storing area has to each raw material cabin The feed(raw material)inlet of the corresponding raw material of conveying；Between adjacent feed storehouse, corresponding storage space is separated to form with barricade；Include dry domain and dispensing domain in the dispensing area, lateritic nickel ore and quick lime storehouse from the lateritic nickel ore storehouse To be dehydrated to lateritic nickel ore, the dispensing domain receives and comes from the dry domain vexed heap quick lime in the dry domain And the raw material in the reducing agent storehouse is to prepare raw materials for sintering；The dispensing area with formulation export, the dispensing domain with it is described Formulation outlet；The granulating mechanism that whole grain classification is carried out to lateritic nickel ore, and the big granularity mineral aggregate heap of corresponding configuration are equipped with the dispensing domain Granularity is stored up in the big granularity mineral aggregate of 10~30mm, the granule in field and small grain size mineral aggregate stockyard, the big granularity mineral aggregate stockyard Spend the small grain size mineral aggregate of mineral aggregate stockyard stockpiling granularity≤10mm；It is equipped with the dispensing domain：For being connected to the formulation output device of sintering machine, the formulation output device extend out to the formulation outlet Outside；For exporting the big granularity mineral aggregate using the first dosage bunker as hearth layer for sintering and exporting the small grain size mineral aggregate Second dosage bunker, first dosage bunker are connected with the formulation output device, and second dosage bunker is quantitative by first Charging gear is connected with the formulation output device；Reducing agent dosage bunker, the reducing agent dosage bunker arrival end are connected with the reducing agent storehouse by material transfer device, gone out Mouth end is connected by the second dosing device with the formulation output device；Flux dosage bunker, the flux dosage bunker arrival end are connected by material transfer device with the quick lime storehouse, the port of export It is connected by the 3rd dosing device with the formulation output device.
- 2. lateritic nickel ore raw material storage according to claim 1, it is characterised in that：The lateritic nickel ore storehouse and the quick lime Storehouse arranged adjacent, and adjacent to the dry domain.
- 3. lateritic nickel ore raw material storage according to claim 2, it is characterised in that：The dry domain and the reducing agent storehouse are equal Adjacent to the dispensing domain.
- 4. lateritic nickel ore raw material storage according to claim 3, it is characterised in that：Passage is run formed with raw material carrier vehicle in the storehouse, and the operation passage is from the feed(raw material)inlet to being right against the original Expect the storehouse headwall side extension of entrance, and space in the storehouse is separated to form as the storing area and the dispensing area；Each raw material cabin in the storing area is arranged along the operation channel-length direction, the dry domain and dispensing domain edge The operation channel-length direction arrangement.
- 5. lateritic nickel ore raw material storage according to claim 4, it is characterised in that：The dry domain includes two material stockyards, The two material stockyards point row dispensing domain both sides；The lateritic nickel ore storehouse and the quick lime storehouse are correspondingly arranged two, institute State reducing agent storehouse has a lateritic nickel ore storehouse and a quick lime storehouse per side.
- 6. lateritic nickel ore raw material storage according to claim 1, it is characterised in that：The formulation output device includes being used for Connect the first deferent segment of each dosage bunker and the second deferent segment for being connected to sintering machine, first deferent segment and described The mixing arrangement for being used for mixing the small grain size mineral aggregate with reducing agent and flux is equipped between two deferent segments and is mixed by this Device is connected.
- 7. lateritic nickel ore raw material storage according to claim 1, it is characterised in that：The lateritic nickel ore raw material storage further includes certainly Autocontrol system, the automatic control system include central controller, and the central controller memory contains the property of each raw material Parameter and the proportion scheme that generation is calculated by the nature parameters of each raw material；It is equipped with the material level detection mechanism that the corresponding raw material of detection is measured in storehouse in each raw material cabin, each material level detection mechanism is and institute The input terminal for stating central controller is electrically connected, and first dosing device, second dosing device, the 3rd quantify The operating circuit of charging gear and each dosage bunker is electrically connected with the central controller input terminal.
- A kind of 8. lateritic nickel ore stock preparation system, it is characterised in that：Including red as any one of claim 1 to 7 Native nickel minerals raw material storage and sintering machine, the sintering machine are connected with formulation outlet.
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| CN201610402785.4A CN106088694B (en) | 2016-06-08 | 2016-06-08 | Lateritic nickel ore raw material storage and lateritic nickel ore stock preparation system |
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| CN106676261A (en) * | 2017-01-23 | 2017-05-17 | 宝钢德盛不锈钢有限公司 | Efficient uniform mixing process for laterite nickel ore |
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