CN208802596U - A kind of iron ore ingredient blending system based on harbour - Google Patents
A kind of iron ore ingredient blending system based on harbour Download PDFInfo
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- CN208802596U CN208802596U CN201821389490.9U CN201821389490U CN208802596U CN 208802596 U CN208802596 U CN 208802596U CN 201821389490 U CN201821389490 U CN 201821389490U CN 208802596 U CN208802596 U CN 208802596U
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Abstract
On the ground, feed proportioning system is arranged in below ground for a kind of iron ore ingredient blending system based on harbour, feeding system and windrow system setting；Feeding system includes belt feeder feeding system and/or automobile feeding system；The belt feeder feeding system or the iron ore material storage system at automobile feeding system connection harbour；The feed proportioning system includes: several batch bins, is located at ground level or less；Each batch bin configures a batcher and a belted electronic balance；The batcher is set to below the batch bin, and the feed inlet of the batcher is connect with the discharge port of the batch bin；The belted electronic balance is set to the lower section of the batcher discharge port；Belt conveyor is set to below all belted electronic balance discharge ends；PCL controller, the batcher, belted electronic balance are electrically connected with the PCL controller respectively；The windrow system includes stacker, and the storage end of the stacker is connect with equipment of conveyer discharge end in the feed proportioning system.
Description
Technical field
The utility model belongs to iron-smelting raw material preparation techniques field, and in particular to a kind of iron ore ingredient mixing based on harbour
System.
Background technique
The ore raw materials of steel plant, since source is different, numerous in variety, and since Products of mine ingredient is unstable, often
Often having miscellaneous type, ingredient and granularity fluctuates big situation.Such case can cause fluctuation and the blast furnace process of sinter quality
When the working of a furnace it is unstable.Mixing operation is carried out to ore raw materials, sintering and the ironmaking production ore raw materials stable with quality can be given,
To improve the quality of sinter and improve the technical-economic index of blast fumance.
It is to promote iron and steel enterprise's raw material stability, improve sinter quality and reduce ironmaking consumption that Iron Ore Powder, which mixes technology,
One important measures, mass data show after mixing material using Iron Ore Powder that sintering output improves 3% or more, solid fuel consumption
4kg/t or more is reduced, ironmaking yield promotes 5% or more, and molten iron fuel consumption reduces 10kg/t or more, simultaneously because raw material is steady
Determine, molten steel quality is stablized, and also improves yield to steel-making, reduction flux consumption creates advantageous condition.But it is most of at present
Middle-size and small-size iron and steel enterprise does not have blending-field, cannot achieve effective application of small kind, inexpensive iron ore, leads to sinter quality
It is unstable.
It is on the one hand the type into the iron ore resource all over the world of Chinese market with the development of Chinese Iron & Steel Enterprises
It greatly increases, is on the other hand most of middle-size and small-size iron and steel enterprise due to being limited by place, does not consider iron in plant design
The prewired blending process of mine, but with enterprise to drop this, energy conservation, mention effect etc. require promotion, there is no blending-field bring
The problems such as cost of material is high, sinter quality is poor, sintering fuel consumes height, blast furnace iron low output, fuel ratio is high is more and more obvious,
Therefore factory floor and raw material variety, the new process for improving material quality stability can not be increased by finding one kind, at
The significant problem faced for iron and steel enterprise.
China is the current maximum country of iron ore imports amount, and the ability that coastal port receives iron ore is also very huge,
But its function is mainly the handling, storage and shipping of iron ore, in recent years individual harbours implement mixed mine be also only limitted to using
Two stacker-reclaimers take out two kinds of different grade iron ores by the hour flow of design from two stockyards respectively, then use belt
Hauler is gone on third platform stacker-reclaimer, and two kinds of raw materials are mixed on heap to third stockyard, and this hybrid mode is referred to as thick
Mixed, mixed mineral class is few, mixed effect is poor, and mixture composition is uneven, and factory is when in use if without mixing prewired place
Reason, will affect the stabilization of sinter composition instead, and blast furnace index is caused to glide.
In imported Fe ore, the big mine such as Brazil, Australia is sent to the iron ore majority of Chinese Port in other side mine
Or harbour has carried out mixed processing, but still have how non-mainstream iron ore there are still directly shipped from different mine points to harbour
Phenomena such as random shipment, cause the iron ore uniformity of whole ship poor, factory is directly fluctuated using will also result in sinter composition.
In conclusion since iron ore uniformity requirements improve in factory, harbour slightly mixes mine composition and fluctuates big and part
Non-mainstream mine is found and a kind of carry out essence at harbour and match, mix because of the big three aspects factor of composition fluctuation caused by the limitation of dress port
Iron ore processing technology is to solve big iron ore composition fluctuation, improvement sinter quality index, improve production efficiency, reduce energy
One important measures of source consumption.
Summary of the invention
The purpose of this utility model is to provide a kind of iron ore ingredient blending system based on harbour, have it is intensive, efficient,
The features such as low consumption, can arrange in pairs or groups on the spot at harbour, mix the iron ore resource from all over the world, guarantee blending ore metallurgical performance
Under conditions of, inexpensive iron ore is made good use of, the iron ore being had excellent performance mixes material, reduces cost of material for enterprise.
To achieve the above purpose, the technical solution of the present invention is:
A kind of iron ore ingredient blending system based on harbour comprising feeding system, feed proportioning system, windrow system, it is described
On the ground, the feed proportioning system is arranged in below ground for feeding system and windrow system setting；
The feeding system includes belt feeder feeding system and/or automobile feeding system；The belt feeder feeding system or
The iron ore material storage system at automobile feeding system connection harbour；
The feed proportioning system includes: several batch bins, is located at ground level or less；Each batch bin configures a batcher
With a belted electronic balance；The batcher is set to below the batch bin, the feed inlet of the batcher and the batch bin
Discharge port connection；The belted electronic balance is set to the lower section of the batcher discharge port；Belt conveyor is set to all
Below belted electronic balance discharge end；PCL controller, the batcher, belted electronic balance electrically connect with the PCL controller respectively
It connects；
The windrow system includes stacker, belt conveyer in the storage end of the stacker and the feed proportioning system
Discharge end connection.
Further, the belt feeder feeding system includes connecting with the discharge port of the iron ore material storage system at harbour
It is fed belt feeder, the discharge end of the feed belt feeder is set to the top of the batch bin feed inlet；The feed belt feeder
The iron ore material that the iron ore material storage system at harbour provides is delivered to batch bin.
The automobile feeding system includes dump truck, and discharging platform of the dump truck for discharging is arranged in ground level
And it is located above batch bin feed inlet and on ground level；The dump truck is by the iron ore material storage system belt at harbour
The iron ore material that machine system provides is delivered to batch bin.
Again, the batcher is disk feeder.
Belt feeder feeding system described in the utility model is docked with the iron ore material storage system at harbour, by the port of arrival
The iron ore raw material of mouth is directly loadable into the batch bin of feed proportioning system；The utility model uses automobile feeding system, and automobile feed has
The raw material in any stock ground at harbour can be directly supplied to the batch bin of feed proportioning system by more flexibilities.In order to realize automobile
Batch bin is set under ground level by efficient, the low consumption purpose of discharging, the utility model, and discharging platform is arranged on ground level,
Raw material directly can be discharged into batch bin by automobile.
Batcher is associated with belted electronic balance by PLC controller in feed proportioning system described in the utility model, and batcher is pressed
The dispensing requirements that PLC controller provides control various iron ores and flow out and fallen on belted electronic balance according to certain delivery rate,
Belted electronic balance weighs iron ore material, and continuous data is transferred to PCL controller, and the judgement of PCL controller is practical
The deviation of discharge quantity and given value, and current order batcher adjusts delivery rate, guarantees that the two deviation is no more than 0.5%, in fact
Existing automatic blending.It is additionally provided with belt conveyor below the batcher, belted electronic balance, the iron ore on belted electronic balance exists
It is fallen on belt conveyor under the transmission effect of belt feeder.Since iron ore delivery rate can be controlled by PCL in each batch bin
Device controls respectively, thus the utility model can pass through the transmission of iron ore delivery rate and belted electronic balance in each batch bin of control
Speed makes a variety of iron ores fall in the same position of belt conveyor, and a variety of iron ores are successively layered on belt conveyor,
And then form premix refining.
Windrow blending system described in the utility model realizes that belt conveyor is delivered to heap for refining is premixed using stacker
Material machine, stacker reach 150 meters or more according to " people " font and " crowd " font walking windrow, windrow length, and the windrow number of plies reaches
240 layers or more, to realize mixing well for Iron Ore Powder, the mode that delivery entrucking takes both ends to intercept further guarantees mixed
The uniformity of even powder, to achieve the purpose that sinter ingredient stability, increased quality.
The utility model is directed to storage, logistics and the iron ore resource feature at harbour, devises a set of intensive, efficient, low
The iron ore ingredient blending system of consumption, the system are suitble to be carried out in situ blending proportion at harbour, are able to solve enterprise and are applying
The restraining factors of low price resource, stable material condition, raising production efficiency, reduction pig iron cost etc..
Iron ore ingredient blending system provided by the utility model designs multiple batch bins, guarantees certain time buffering, really
Protect the continuity of ingredient；Feed proportioning system is accurate, guarantees to complete ingredient task, error according to the iron ore ratio requirement of design
No more than 0.5%.
Iron ore ingredient blending system provided by the utility model can realize that the ingredient of a variety of iron ores mixes at harbour completely
Function, the type for increasing iron ore for medium-sized and small enterprises create condition, increase and mixed effect with iron ore type
Improve, the collocation of iron ore will become more rationally, play strong branch to improving sinter quality, reducing sinter cost
It holds.
Using the purchasing of raw materials and logistics order of system optimization provided by the utility model enterprise.Enterprise is directly from harbour
Blending ore is bought, enterprise mixes mine by using harbour, can effectively reduce the kind of the purchasing of raw materials, to ensure that sintering
The benefit that the diversity of materials brings sinter quality to improve, and alleviate the difficulty of fund balancing and the confusion of logistics order.
The utility model has the beneficial effects that
1. the utility model will automobile blow tank and batch bin in the prior art using ground material feeding and underground batching mode
It is combined into one, batch bin is only set in feed proportioning system, then can process blending ore heap to stock ground per ton through belt conveyor
The power consumption of blending ore only 0.4kWh.Therefore, the utility model process flow is simplified, and cost is significantly reduced.
2. it is in iron and steel enterprise's stock yard that miner's skill is mixed by current traditional enterprise, raw material sources are only limitted to the one of stock yard
Secondary stock ground, buying, logistics by enterprise place, inventory and iron ore are limited larger, and the utility model is by a stock ground
Become entire harbour, the source of raw material, type are substantially unrestricted, and can accomplish to buy to use.Therefore, this is practical
The novel channel for obtaining blending ore raw material used in enterprise and type increase.
3. the mixing with excellent metallurgical performance can be produced by iron ore ingredient blending system provided by the utility model
Mine, enterprise can directly buy the blending ore, this just effectively reduces enterprise into the type of factory's raw material, improve the windrow effect in stock ground
Rate saves the place resource of a large amount of preciousnesses for enterprise.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention.
Specific embodiment
The utility model is described further below with reference to embodiment and attached drawing.
Embodiment
Referring to Fig. 1, a kind of iron ore ingredient blending system based on harbour provided by the utility model comprising feeding system
100, feed proportioning system 200, windrow system 300, the feeding system 100 and windrow system 300 are arranged on the ground, the ingredient
System 200 is arranged in the basement of below ground；
The feeding system 100 includes belt feeder feeding system and/or automobile feeding system；The belt feeder feeding system
Or the iron ore material storage system at automobile feeding system connection harbour；
The feed proportioning system 200 includes: three batch bin 21/21 '/21 ", is located at ground level or less；Each batch bin
21/21 '/21 " configure a batcher 22/22 '/22 " and a belted electronic balance 23/23 '/23 "；The batcher 22/21 '/
21 " are respectively arranged at 21/21 '/21 " lower section of the batch bin, the feed inlet of the batcher 22/22 '/22 " respectively with it is described
The discharge port of batch bin 21/21 '/21 " connects；Belted electronic balance 23/23 '/23 " are respectively arranged at batcher 22/22 '/22 "
The lower section of material mouth；Belt conveyor 24 is set to below all 23/23 '/23 " discharge ends of belted electronic balance；PCL controller 25
(Programmable logic Controller, programmable logic controller (PLC)), the batcher 22/21 '/21 ", electronics skin
Belt scale 23/23 '/23 " are electrically connected with the PCL controller 25 respectively；
The windrow system 300 includes stacker, Belt Conveying in the storage end of the stacker and the feed proportioning system
The connection of 24 discharge end of machine.
Feeding system 100 described in the present embodiment is automobile feeding system, which includes dump truck, described
The discharging platform 11/11 ' of dump truck/11 " be arranged above batch bin 21/21 '/21 " feed inlets and on ground level 1 meter with
On；The dump truck by the iron ore material that the iron ore material storage system at harbour provides be delivered to batch bin 21/21 '/
21”。
Batcher 22/22 '/2 " described in the present embodiment are disk feeder.
In the present embodiment, the iron ore from all over the world is transported to the iron ore material storage that harbour is deposited in behind harbour
System carries out a variety of iron ore materials using iron ore ingredient blending system provided by the utility model to be uniformly mixed so as to obtain iron ore mixing
Material, specifically, dump truck transports directly to three kinds of iron ore materials in the iron ore material storage system at harbour respectively matches
(iron ore material is discharged into corresponding batch bin on discharging platform 11/11 '/11 " for being located at ground level or more to feed bin by dump truck
21/21’/21”)。
The dispensing requirements that batcher 22/22 '/2 " are provided by PLC controller 25 are by the iron ore in batch bin 21/21 '/21 "
Stone raw material is flowed out according to certain delivery rate, falls in belted electronic balance from batch bin 21/21 '/21 " outflows iron ore material
On 23/23 '/23 ", belted electronic balance 23/23 '/23 " weigh iron ore material, and continuous data is transferred to PCL control
Device 25 processed, PCL controller 25 judges the deviation of practical discharge quantity and given value, and current order batcher 22/22 '/2 " adjusts
Delivery rate guarantees that the two deviation is no more than 0.5%.Iron ore material after measuring on belted electronic balance 23/23 '/23 " is in skin
It is fallen under transmission with machine on belt conveyor 24, a variety of iron ores is successively layered on belt conveyor 24, and then formed pre-
Mix material.It is delivered to stacker by refining is premixed using belt conveyor 24, stacker is according to " people " font and " crowd " font row
Windrow is walked, windrow length reaches 150 meters or more, and the windrow number of plies reaches 240 layers or more, to realize mixing well for Iron Ore Powder
It mixes and expects to iron ore, intercepted using elevating conveyor from material heap both ends and mix material, and be packed into haulage vehicle, issue target user.
Specific embodiment
Iron ore is obtained after iron ore ingredient blending system provided by the utility model is implemented at Shandong harbour and mixes material, to this
The quality etc. that iron ore mixes material product has carried out test on multi-tenns.
(1) iron ore mixes material proportion scheme: referring to table 1.
Table 1
| Description of Goods | Proportion | Adapted quantity | |
| Material 1 | It fills in mine and is crushed powder | 10% | 3000 tons |
| Material 2 | Mauritanian powder | 14% | 4200 tons |
| Material 3 | FMG mixed powder | 33.3% | 10000 tons |
| Material 4 | Pelletizing is broken | 9.7% | 2900 tons |
| Material 5 | Card powder | 7.3% | 2200 tons |
| Material 6 | Powder after Brazilian mine screen | 9% | 2700 tons |
| Material 7 | BRBF | 16.7% | 5000 tons |
(2) each disconnected test rating comparison (%) for mixing powder that design objective and when entrucking intercept, referring to table 2.
Table 2
| TFe | SiO2 | Al2O3 | S | P | Moisture | |
| Section 1 | 61.58 | 4.93 | 2.25 | 0.021 | 0.067 | 7.58 |
| Section 2 | 61.24 | 5.18 | 2.29 | 0.028 | 0.059 | 7.43 |
| Section 3 | 61.49 | 5.12 | 2.06 | 0.023 | 0.056 | 7.66 |
| Section 4 | 61.17 | 5.22 | 2.26 | 0.027 | 0.058 | 7.31 |
| It is average | 61.37 | 5.11 | 2.22 | 0.025 | 0.060 | 7.50 |
| Design value | 61.36 | 5.07 | 2.21 | 0.025 | 0.061 | 7.38 |
| Commodity inspection value | 61.51 | 5.18 | 2.15 | 0.023 | 0.066 | 7.32 |
(3) powder survey report is mixed
Representative sample is taken to above mentioned goods skewer according to SN/T 1797.1-2008 standard, through examining quality results referring to table
3。
Table 3
| Project name | The name of an article | Testing result | Unit | Detection method |
| Moisture | Iron Ore Powder | 7.32 | % | ISO 3087:2011 (E) |
| Iron | Iron Ore Powder | 61.51 | % | GB/T 6730.65-2009 |
| Aluminum oxide | Iron Ore Powder | 2.15 | % | SN/T 0832-1999 |
| Silica | Iron Ore Powder | 5.18 | % | SN/T 0832-1999 |
| Phosphorus | Iron Ore Powder | 0.066 | % | SN/T 0832-1999 |
| Sulphur | Iron Ore Powder | 0.023 | % | GB/T 6730.61-2005 |
Claims (5)
1. a kind of iron ore ingredient blending system based on harbour comprising feeding system, feed proportioning system, windrow system, feature
It is, on the ground, the feed proportioning system is arranged in below ground for the feeding system and windrow system setting；
The feeding system includes belt feeder feeding system and/or automobile feeding system；The belt feeder feeding system or automobile
The iron ore material storage system at feeding system connection harbour；
The feed proportioning system includes:
Several batch bins are located at ground level or less；Each batch bin configures a batcher and a belted electronic balance；It is described to give
Material machine is set to below the batch bin, and the feed inlet of the batcher is connect with the discharge port of the batch bin；The electronics
Weighing belt is set to the lower section of the batcher discharge port；
Belt conveyor is set to below all belted electronic balance discharge ends；
PCL controller, the batcher, belted electronic balance are electrically connected with the PCL controller respectively；
The windrow system includes stacker, equipment of conveyer discharge end in the storage end of the stacker and the feed proportioning system
Connection.
2. the iron ore ingredient blending system according to claim 1 based on harbour, which is characterized in that the belt feeder feed
System includes feed belt feeder, and the discharge port of the iron ore material storage system for being fed belt feeder and harbour connects, described
The discharge end of feed belt feeder is set to the top of the batch bin feed inlet；The feed belt feeder is former by the iron ore at harbour
The iron ore material that material storage system provides is delivered to batch bin.
3. the iron ore ingredient blending system according to claim 1 based on harbour, which is characterized in that automobile feed system
System includes dump truck, and the iron ore material that the iron ore material storage system at harbour provides is delivered to ingredient by the dump truck
Storehouse.
4. the iron ore ingredient blending system according to claim 3 based on harbour, which is characterized in that further include for dump truck
The discharging platform of discharging, the discharging platform are arranged on ground level, are located above batch bin feed inlet.
5. the iron ore ingredient blending system according to claim 1 based on harbour, which is characterized in that the batcher is circle
Disk batcher.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946205A (en) * | 2018-08-28 | 2018-12-07 | 上海慧安科技股份有限公司 | A kind of iron ore ingredient blending system based on harbour |
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2018
- 2018-08-28 CN CN201821389490.9U patent/CN208802596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946205A (en) * | 2018-08-28 | 2018-12-07 | 上海慧安科技股份有限公司 | A kind of iron ore ingredient blending system based on harbour |
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