CN107099678B - A kind of zinc concentrate heap formula layer and section distribution - Google Patents
A kind of zinc concentrate heap formula layer and section distribution Download PDFInfo
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- CN107099678B CN107099678B CN201710252801.0A CN201710252801A CN107099678B CN 107099678 B CN107099678 B CN 107099678B CN 201710252801 A CN201710252801 A CN 201710252801A CN 107099678 B CN107099678 B CN 107099678B
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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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide
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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
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Abstract
The present invention discloses a kind of zinc concentrate heap formula layer and section distribution, and the zinc concentrate of classification stockpiling is picked up, is then sprinkled into the first quadrangle batch bin, forms the cuboid basis heap of mixed once by driving grab bucket；Since one end of cuboid basis heap, cube is picked up, is then sprinkled into the second quadrangle batch bin；Then subsequent cube is cut according to the direction first to pass through again from top to bottom, be sprinkled into the second quadrangle batch bin, until entire cuboid basis heap has been grabbed, form secondary hybrid reactor；Secondary hybrid reactor is grabbed in the feed bin on disk feeder, zinc concentrate is made to realize that third time mixes.Method of the invention first uses heap formula layer and section dosing method mix for the first time with second, then carries out third time mixing using disk dosing method.The uniformity and stability of blending ore are further increased by means of the present invention, is had great importance for reducing in fluidized bed furnace the fluctuation of element and improving product quality.
Description
Technical field
The present invention relates to metallurgy industry zinc hydrometallurgy field more particularly to a kind of zinc concentrate heap formula layer and section ingredient sides
Method.
Background technique
Fluctuation due to mixing the elements such as S of zinc concentrate in calcining process affects the stability of fluidized bed furnace and final
The quality of product.Therefore, to fluidized bed furnace supply moisture, the blending ore of grade and particle size stable, for siege temperature in fluidized bed furnace
Stabilization and product quality play a crucial role, provided for the production steady in a long-term of fluidized bed furnace, high yield, quality product
Optimal material condition.Mix make heap be improve blending ore physics, chemical composition stability rate most critical the step of, especially exist
Present smelting industry ore resource increasingly dilution, use " various schools of thinkers mine " to tend to normality in the case where, high-quality ore resource is increasingly dilute
It is few and in rising trend with mine cost, in order to reduce production cost, so-called low cost strategy is walked, each zinc abstraction enterprise all exists
Competitively purchase ingredient is relative complex, and stability is poor, and the relatively low ore of price is produced.Many enterprises are not due to having energy
Self-supporting large-scale mine, also unstable ore resource supplier, therefore ore need to be bought from all parts of the world, among zinc concentrate
Supplier is more, and which results in ore matching mineral are more, not only the component difference of different mineral is larger, even same concentrate supplier
Each ingredient can also have very big difference in the zinc concentrate of supply.
In order to solve the content problem of blending ore, traditional distribution mostly uses feed bin dosing method or stockpile burdening method
Two kinds.Wherein feed bin dosing method is exactly to use disk feeder, and the different concentrate of various composition is added separately to each disk
In feed bin on batcher, according to determining proportion scale, the outlet gatage or belt of disk feeder are manually adjusted
Revolving speed is achieved in required proportion scale.And stockpile burdening rule proportion scale according to determined by burdening calculation,
In batch bin, the different concentrate of grade height is sprinkling upon in batch bin in layers, forms a centrum, by a side when use
To mixing.But the shortcomings that the shortcomings that both single distributions have oneself, feed bin dosing method, is: in certain work
Under condition, since the moisture content of mine, viscosity can generate the unsmooth phenomenon that discharges, and then cause ore proportioning rate inconsistent, mixed zinc essence
The each elementary composition fluctuation of mine is too big；And use the outer edge part zinc essence of the prepared cone zinc concentrate heap of stockpile burdening method
Mine particle is coarse compared with central part, which results in the stirring of zinc concentrate is uneven, the content fluctuation of essential element and impurity
Range is larger.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of zinc concentrate heap formula layer and section ingredients
Method, it is intended to solve the problems such as distribution fluctuation in the prior art is larger, mixing is uneven.
Technical scheme is as follows:
A kind of zinc concentrate heap formula layer and section distribution, wherein comprising steps of
A, by different zinc concentrate classification heaps there are in different feed bins, for use；
B, according to proportion scale, the zinc concentrate of classification stockpiling is picked up with driving grab bucket, is then sprinkled into the first quadrangle
In batch bin, and it is uniformly paved with one layer in orlop, then proceedes to pick up next zinc concentrate, be then sprinkled into the first quadrangle and match
In feed bin, and continue to be paved with one layer in orlop, and so on, and circulation stone is carried out, until the first quadrangle material Distribution Warehouse piles with
Until, form the cuboid basis heap of mixed once；
C, since one end of cuboid basis heap, first piece of cube is picked up, is then sprinkled into the second quadrangle ingredient
In storehouse；Then subsequent cube is cut according to the direction first to pass through again from top to bottom, be sprinkled into the second quadrangle
In batch bin, until entire cuboid basis heap has been grabbed, secondary hybrid reactor is formed；
D, secondary hybrid reactor is grabbed in the feed bin on disk feeder, after so that zinc concentrate is realized that third time mixes, shape
At final mixed material.
The zinc concentrate heap formula layer and section distribution, wherein a length of 16 meters of cuboid basis heap, width be
8 meters, it is 3 meters a height of.
The zinc concentrate heap formula layer and section distribution, wherein the quantity of the disk feeder is 3.
The zinc concentrate heap formula layer and section distribution, wherein before the step A further include:
Content detection is carried out to different zinc concentrates, different zinc concentrates is subjected to classification stockpiling according to testing result.
The zinc concentrate heap formula layer and section distribution, wherein a length of 1 meter of the cube, width be 1 meter, it is high
It is 1 meter.
The zinc concentrate heap formula layer and section distribution, wherein every in the heap of cuboid basis in the step B
A layer thickness is 1.6cm.
The utility model has the advantages that method of the invention first uses heap formula layer and section dosing method mix for the first time with second,
Then third time mixing is carried out using disk dosing method.By means of the present invention come further increase blending ore uniformity and
Stability has great importance for reducing the fluctuation of element and raising product quality in fluidized bed furnace.
Detailed description of the invention
Fig. 1 is flow diagram of the present invention；
Fig. 2 is that zinc concentrate heap formula layer and section dosing method of the present invention spreads mine schematic diagram；
Fig. 3 is the diagrammatic cross-section of zinc concentrate heap formula layer and section dosing method of the present invention；
Fig. 4 is the stereoscopic schematic diagram of zinc concentrate heap formula layer and section dosing method of the present invention cut.
Specific embodiment
The present invention provides a kind of zinc concentrate heap formula layer and section distribution, for make the purpose of the present invention, technical solution and
Effect is clearer, clear, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein
It is only used to explain the present invention, be not intended to limit the present invention.
A kind of zinc concentrate heap formula layer and section distribution preferred embodiment provided by the present invention comprising step:
S1, by different zinc concentrate classification heaps there are in different feed bins, for use；
S2, according to proportion scale, the zinc concentrate of classification stockpiling is picked up with driving grab bucket, is then sprinkled into the first quadrangle
In batch bin, and it is uniformly paved with one layer in orlop, then proceedes to pick up next zinc concentrate, be then sprinkled into the first quadrangle and match
In feed bin, and continue to be paved with one layer in orlop, and so on, and circulation stone is carried out, until the first quadrangle material Distribution Warehouse piles with
Until, form the cuboid basis heap of mixed once；
S3, since one end of cuboid basis heap, pick up first piece of cube, be then sprinkled into the second quadrangle ingredient
In storehouse；Then subsequent cube is cut according to the direction first to pass through again from top to bottom, be sprinkled into the second quadrangle
In batch bin, until entire cuboid basis heap has been grabbed, secondary hybrid reactor is formed；
S4, secondary hybrid reactor is grabbed in the feed bin on disk feeder, after so that zinc concentrate is realized that third time mixes, shape
At final mixed material.
Firstly, in step sl, first by different zinc concentrate classification heaps there are in different feed bins, for use.
Specifically, before step S1, further includes:
Content detection is carried out to different zinc concentrates, different zinc concentrates is subjected to classification stockpiling according to testing result.
I.e. to from various regions transport come zinc concentrate carry out chemical element detection, the member predominantly detected be known as Zn, S, Pb,
SiO2, Cu, Co, the big zinc concentrate selection of component difference is piled up in different feed bins, individually stockpiling is stand-by, and component difference is small
Zinc concentrate selection piles up in same feed bin, merges stockpiling for use, stores up in this way by compositional classification, finally obtain different types of zinc
Concentrate, each type form a pile.
Then overall flow of the invention is adopted as shown in Figure 1, first using heap formula layer and section dosing method progress mixed once
Secondary mixing is carried out with heap formula layer and section dosing method, is finally mixed three times using disk dosing method, then by drawing material
Belt is sent into fluidized bed furnace.
In step s 2, as shown in Fig. 2, according to the proportion scale determined using weighted average calculation formula, to grab number
For unit, one of the zinc concentrate of classification stockpiling (i.e. a pile) is picked up with driving grab bucket, the first quadrangle is then sprinkled into and matches
Feed bin is first uniformly paved with one layer (every a layer thickness is 1.6cm) in orlop, and so on, it successively spreads into other zinc concentrates, and
Each zinc concentrate is all paved with one layer, to all spreading required zinc concentrate into the first quadrangle batch bin, spreads further in accordance with first time
The sequence for entering zinc concentrate carries out circulation stone (carrying out stone using the curved form of S), until the first quadrangle batch bin pile with for
Only, as shown in figure 3, forming cuboid basis heap, this is mixing for the first time.
The weighted average calculation formula that the step S2 is used is as follows:
kn- n zinc concentrate accounts for the percentage composition for participating in all zinc concentrates of ingredient, k1+k2+k3+…kn=1；
an- a of n zinc concentratenThe percentage composition of corresponding zinc concentrate shared by element.
In step s3, as unit of grabbing number, the cuboid basis heap that mixed once is formed is picked up with driving grab bucket, is spread
Enter in second quadrangle batch bin；
As shown in figure 4, when grabbing cuboid basis heap, first since cuboid basis heap one end (one end on top),
It vertically cuts from top to bottom, it is cube that grab bucket can grab every time, is sprinkled into after grabbing first piece of cube to the two or four
In the shape batch bin of side, continue to grab then along cuboid basis heap one end lower part, after all cubes for having grabbed one end, i.e.,
After by the crawl of the first row, the second row is grabbed using same method, then third row, the 4th row,
And so on, i.e., cube is cut according to the direction first to pass through again from top to bottom, and all spread after grabbing every time
Enter into the second quadrangle batch bin, until entire cube basis heap has been grabbed.
When cuboid basis heap is sprinkled into the second quadrangle batch bin, grab after first piece of cube then at second four
The orlop of side shape batch bin is uniformly paved with first layer, grabs then equal in the orlop of the second quadrangle batch bin after second piece of cube
It is even to be paved with first layer, then and so on, continue to be paved with third layer, the 4th layer, layer 5 ... ..., until the second quadrangle is matched
Until feed bin piles with, secondary hybrid reactor is formed.
Finally, in step s 4, secondary hybrid reactor is grabbed in the feed bin on disk feeder, zinc concentrate is made to realize the
After mixing three times, final mixed material is formed.
In step s 4, it equally as unit of grabbing number, is grabbed with the secondary hybrid reactor that crane grab bucket forms step S3 into each
In feed bin on a disk feeder, according to determining proportion scale, each disk feeder is opened simultaneously, adjusts disk feeder
Go out port strobe size, make zinc concentrate draw material belt on realize third time mix after, form final uniform mixed material,
It is then sent through in fluidized bed furnace for producing.The quantity of the disk feeder is preferably 3.
Further, the size of cuboid basis heap is as follows: a length of 16 meters, width be 8 meters, it is 3 meters a height of.So, in step
In rapid S3, then first cuboid basis heap is divided equally, such as the cuboid basis that step S2 is obtained for unit with 1 meter
The length of heap is divided into 16 rows, wide to be divided into 8 perpendicular rows, 3 stringer of Gao Junwei.When grabbing cuboid basis heap, first from cuboid
The endpoint of basic heap starts, and vertically cuts from top to bottom, and the cube length, width and height that can be grabbed every time are 1 meter, and cuboid
The height of basic heap is 3 meters, so to grab three times from cuboid basis heap top-to-bottom, then along cuboid basis heap
Broadside laterally cuts second cube, and equally from cuboid basis, heap top-to-bottom will be grabbed three times, and the first row is grabbed
After, the second row is grabbed using same method, then third row, the 4th row, and so on, until will
Entire cuboid basis heap has been grabbed.
Fluctuation detection is also carried out after the step S4, specific as follows: zinc concentrate is uniformly mixed in disk proportioning machine
Afterwards, material belt same position sampling is being drawn per hour, and XRF points is carried out to the zinc concentrate being mixed by disk proportioning machine
Analysis is compared in conjunction with the weighted average of the element composition of all kinds of zinc concentrates before not yet mix, checks its element
Fluctuation.XRF analysis instrument of the present invention is Shimadzu XRF-1800-CCDE.
Crane grab bucket in the present invention is 5 tons of grab buckets, and the length of the cube grabbed is 1 meter.
The different zinc concentrate of grade can mix more evenly by method of the invention, so that into fluidized bed furnace into furnace charge
The fluctuation of middle element is increased to ± 2% from ± 7%, to make to produce more stable, product quality is improved.
Embodiment 1: three step mixing methods of domestic six kinds of zinc concentrates, particular content are as follows:
The zinc concentrate used in the present embodiment 1 for from domestic different places six kinds of i.e. A1, A2 of zinc concentrate, A3, A4,
The composition of A5, A6, this six kinds of zinc concentrates are as shown in table 1 below:
1 six kinds of zinc concentrate component content tables of table
1), raw material classification stockpiling and Element detection
Chemical element detection is carried out to the zinc concentrate come from various regions transport, the member predominantly detected is known as Zn, S, Pb, SiO2、
Cu, Co pile up the big ingredient mineral selection of component difference in different feed bins, and individually stockpiling is stand-by；
2), mixed once
According to identified proportion scale, as unit of grabbing number, it will wherein A1 zinc concentrate be picked up with driving grab bucket, then be spread
Enter in the first quadrangle batch bin, be uniformly paved with one layer, successively spreads into A2, A3, A4, A5, A6 concentrate, required zinc concentrate is all spread
Enter batch bin, carry out circulation stone further in accordance with the sequence spread for the first time into zinc concentrate, until feed bin piles with, forms cuboid
Basic heap (subsequent to claim first cuboid basis heap).
3), secondary mixing
As unit of grabbing number, the cuboid basis heap that mixed once is formed is picked up with driving grab bucket, is sprinkled into the two or four side
In shape batch bin.
It when grabbing cuboid basis heap, first since the endpoint of cuboid basis heap, vertically cuts, grabs bucket from top to bottom
Can grab every time is cube that length, width and height are 1 meter, and the feed bin height of cuboid basis heap is 3 meters, so from length
Cube basis heap top-to-bottom will grab three times, laterally cut second cube then along the broadside of cuboid basis heap,
It equally to be grabbed three times from from cuboid basis heap top-to-bottom, after the first row is grabbed, using same method pair
Second row is grabbed, then third row, the 4th row ... ... etc., until entire cuboid basis heap has been grabbed.
When cuboid basis heap is sprinkled into the second quadrangle batch bin, it is uniformly first paved with one layer in orlop, is successively paved with
The second layer, third layer ... ... form second cuboid basis heap (i.e. secondary hybrid reactor) until feed bin piles with.
4) it, mixes three times
Equally as unit of grabbing number, secondary second be mixed to form cuboid basis heap is grabbed into each with driving grab bucket
In feed bin on disk feeder, according to determining proportion scale, adjust disk feeder goes out port strobe, is achieved in institute
It is required that proportion scale.
Using the method for crawl first basic heap, second secondary hybrid reactor is grabbed.
5), fluctuation detects
Zinc concentrate disk proportioning machine after mixing, per hour draw material belt same position sampling and to pass through disk
The zinc concentrate that proportioning machine is mixed carries out XRF analysis (x-ray fluorescence analysis), in conjunction with all kinds of zinc before being not yet mixed
The weighted average of the element composition of concentrate is compared, and checks its element fluctuation.Its result is as shown in table 2 below:
Table 2 mixes zinc concentrate composition and fluctuates table
From Table 2, it can be seen that after being mixed in obtained zinc concentrate each element component content and its stir it is preceding all kinds of
The weighted average of zinc concentrate compares, and fluctuation is within ± 2%.
Embodiment 2: three step mixing methods of five kinds of Yunnan zinc concentrate, particular content are as follows:
The zinc concentrate used in embodiment 2 for five kinds of zinc concentrates i.e. B1, B2, B3, B4, B5 from domestic different places,
The composition of this five kinds of zinc concentrates is as shown in table 3 below:
3 five kinds of zinc concentrate component content tables of table
1), raw material classification stockpiling and Element detection
Chemical element detection is carried out to the mine come from various regions transport, the member predominantly detected is known as Zn, S, Fe etc., and ingredient is poor
Different big ingredient mineral selection piles up in two adjacent feed bins；
2), mixed once
According to identified proportion scale, as unit of grabbing number, it will wherein B1 zinc concentrate be picked up with driving grab bucket, then be spread
Enter in the first quadrangle batch bin, be uniformly paved with one layer, successively spread into B2, B3, B4, B5 concentrate, by required zinc concentrate all spread into
Batch bin carries out circulation stone further in accordance with the sequence spread for the first time into zinc concentrate, until feed bin piles with, forms cuboid base
Plinth heap (subsequent to claim first cuboid basis heap).
3), secondary mixing
As unit of grabbing number, the cuboid basis heap that mixed once is formed is picked up with driving grab bucket, is sprinkled into the two or four side
In shape batch bin.
It when grabbing cuboid basis heap, first since the endpoint of cuboid basis heap, vertically cuts, grabs bucket from top to bottom
Can grab every time is cube that length, width and height are 1 meter, and the feed bin height of cuboid basis heap is 3 meters, so from length
Cube basis heap top-to-bottom will grab three times, laterally cut second cube then along the broadside of cuboid basis heap,
It equally to be grabbed three times from from cuboid basis heap top-to-bottom, after the first row is grabbed, using same method pair
Second row is grabbed, then third row, the 4th row ... ... etc., until entire cuboid basis heap has been grabbed.
When cuboid basis heap is sprinkled into the second quadrangle batch bin, it is uniformly first paved with one layer in orlop, is successively paved with
The second layer, third layer ... ... form second cuboid basis heap (i.e. secondary hybrid reactor) until feed bin piles with.
4) it, mixes three times
Equally as unit of grabbing number, secondary second be mixed to form cuboid basis heap is grabbed into each with driving grab bucket
In feed bin on disk feeder, according to determining proportion scale, adjust disk feeder goes out port strobe, is achieved in institute
It is required that proportion scale.
Using the method for first cuboid basis heap of crawl, second cuboid basis heap is grabbed.
5), fluctuation detects
Disk feeder opens simultaneously, per hour simultaneously sampling and to by disk feeder be mixed zinc concentrate into
Row XRF analysis (x-ray fluorescence analysis), in conjunction with the weighted average of the element composition of all kinds of zinc concentrates before being not yet mixed
Value is compared, and checks its element fluctuation.Its result is as shown in table 4 below:
Table 4 mixes zinc concentrate composition and fluctuates table
As can be seen from Table 4, each element component content stirs preceding all kinds of with it in the zinc concentrate obtained after mixing
The weighted average of zinc concentrate compares, and fluctuation is within ± 2%.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (5)
1. a kind of zinc concentrate heap formula layer and section distribution, which is characterized in that comprising steps of
A, by different zinc concentrate classification heaps there are in different feed bins, for use；
B, according to proportion scale, the zinc concentrate of classification stockpiling is picked up with driving grab bucket, is then sprinkled into the first quadrangle ingredient
In storehouse, and it is uniformly paved with one layer in orlop, then proceedes to pick up next zinc concentrate, is then sprinkled into the first quadrangle batch bin
In, and continue to be paved with one layer in orlop, and so on, and circulation stone is carried out, until the first quadrangle material Distribution Warehouse piles with,
Form the cuboid basis heap of mixed once；
C, since one end of cuboid basis heap, first piece of cube is picked up, is then sprinkled into the second quadrangle batch bin；
Then subsequent cube is cut according to the direction first to pass through again from top to bottom, be sprinkled into the second quadrangle ingredient
In storehouse, until entire cuboid basis heap has been grabbed, secondary hybrid reactor is formed；
D, secondary hybrid reactor is grabbed in the feed bin on disk feeder, after so that zinc concentrate is realized that third time mixes, is formed most
Whole mixed material；
The step A is specifically included: carrying out chemical element detection to the zinc concentrate come from various regions transport, the member predominantly detected is known as
Zn、S、Pb、SiO2, Cu, Co, the big ingredient mineral selection of component difference is piled up in different feed bins, individually stockpiling is stand-by；
In the step B, stone is carried out using S curved form.
2. the zinc concentrate heap formula layer and section distribution according to claim 1, which is characterized in that
A length of 16 meters of cuboid basis heap, width be 8 meters, it is 3 meters a height of.
3. the zinc concentrate heap formula layer and section distribution according to claim 1, which is characterized in that
The quantity of the disk feeder is 3.
4. the zinc concentrate heap formula layer and section distribution according to claim 1, which is characterized in that
A length of 1 meter of the cube, width be 1 meter, it is 1 meter a height of.
5. the zinc concentrate heap formula layer and section distribution according to claim 1, which is characterized in that the step B
In, every a layer thickness in the heap of cuboid basis is 1.6cm.
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| "炼铜艾萨炉配料分析及过程构建与控制";吴自学;《云南冶金》;20140425;第43卷(第2期);第119页3 主要原料成分的影响分析及其控制原则，第120页44 配料成分的稳定控制措施 |
| "白银炼铜法"配料的改进;高小莉;《甘肃冶金》;20100615;第32卷(第3期);第62-63页 |
| "艾萨炉仓式配料的生产实践";尤开云;《中国有色冶金》;20051030;第4-5页1 配料方式的选择，第6页2 艾萨炉仓式配料的生产实践 |
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| CN107099678A (en) | 2017-08-29 |
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