CN108897981A - Blending ore is kept to do, wet feed matches consistent method - Google Patents
Blending ore is kept to do, wet feed matches consistent method Download PDFInfo
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- 238000002156 mixing Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 121
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 11
- 239000011707 mineral Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
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- C22B1/16—Sintering; Agglomerating
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Abstract
The present invention provides that a kind of holding blending ore is dry, wet feed matches consistent method, it is characterised in that including following each step：A, according to the wet stock consumption per hour of sintering machine, setting consumption, the setting total amount of every heap wet stock, the setting total amount of every heap dry material of daily wet stock are calculated, heaped measure is made in the setting of every heap wet stock；B, according to setting make the dry material total amount of heap, the different grades of various raw mineral materials for participating in making heap, final sinter grade requirement, calculate separately out proportion, the dry doses setting value of various materials；C, the material for participating in making heap to every kind is sampled, detects practical water content；Finally obtain the discharge quantity of wet feed.By the practical water content detected in due course, make actual wet stock proportion after deducting the practical water content, it is still consistent with the dry material of setting proportion, it realizes accurate dosing, guarantees sinter quality.
Description
Technical field
The present invention relates to a kind of blending proportion methods, and more particularly, to keeping in sintered material, blending ore is done, wet feed is matched
Than consistent method, belong to sintered material technical field.
Background technique
In ore sintering production process, need according to sintering machine practical material hourly（It is wet）Consumption calculates often
It material（It is wet）Consumption calculates every heap wet feed weight using number of days further according to every heap wet feed material heap, then deducts object
After water content in material, every heap siccative total amount of heap is made in the plan of obtaining.Since raw material is not single, not by a variety of grades
Same raw mineral materials is obtained by mixing, it is therefore desirable to according to every heap siccative total amount of heap is made in plan, sintered grade of sinter is wanted
It asks, each raw mineral materials grade etc., calculates separately out the siccative amount of allocating of each raw mineral materials, that is, match（%）, to guarantee that material is sintered
It can satisfy blast furnace process requirement at the grade after sinter.But in practical blending process, since the material for participating in ingredient is equal
For air storage, water content therein can change because of the influence of factors, and the moisture content of various materials is caused to fluctuate, than
Such as：Rainy day, which will increase water content, fine day, can reduce water content, therefore, it is not possible to keep moisture content not during entirely making heap, mixed mine
Become, inevitably makes made blending ore heap charge ratio after deducting practical water content in this way, it is dry with original plan
Expect that charge ratio is inconsistent, or even generate biggish deviation, influences proportioning accuracy and the grade fluctuation of blending ore, cause blending ore
TFe、 SiO2, the quality index fluctuation such as basicity it is larger, increase sintering, the norm controlling difficulty in blast furnace production process, cause
The sharp fall of sinter quality, yield.Therefore, it is necessary to improve to feed proportioning method, make that blending ore is dry, wet feed is matched
It changes than not changing with moisture content, i.e., holding blending ore is dry, wet feed proportion is consistent, is conducive to improve sinter quality.
Summary of the invention
The present invention is exactly to solve deficiencies of the prior art, and a kind of holding blending ore provided is dry, wet feed
Match consistent method.During realizing blending proportion, the weight of various materials is dry after deducting corresponding moisture content in real time
Expect weight, to guarantee charge ratio precision, improves sinter quality.
The present invention is achieved by the following technical solutions：
A kind of holding blending ore is dry, wet feed matches consistent method, it is characterised in that including following each step：
A, according to the wet stock consumption ton/hour per hour of sintering machine, the setting consumption of daily wet stock is calculated t/ days,
Further according to the actual use number of days of every heap wet stock, day/heap, the setting total amount W for calculating every heap wet stock is wet total, ton/heap, button
After the water content measured in advance except material, the setting total amount W for obtaining every heap dry material is dry total, ton/heap, while according to sealing-tape machine
Design load amount t/h, wet, the t/h that show that heaped measure D heap is made in the setting of every heap wet stock, and this makes that heaped measure D heap is wet to be less than design load
Measure t/h；
B, the dry material total amount W for making heap according to plan is dry total, and participates in making the different grades of the various raw mineral materials of heap, and most
The grade requirement of whole sinter, calculates separately out fol-lowing values：
The dry material of various raw mineral materials set quality proportioning % as：
P1 does %, P2 and does the dry % of % ... Pn；
Dry material sets the dry % ... Pn of the dry %+P2 of the dry total=P1 of quality proportioning summation P and does %；
Corresponding dry material set amount is：W1 is dry, W2 is dry ..., and Wn is dry, ton；
Dry material setting make heap total amount W it is dry total=W1 do+W2 it is dry+... Wn is dry, ton/heap；
C, the material for making heap to every kind of participation, which is sampled, detects practical water content, is：
W1 moisture content, W2 moisture content ... Wn moisture content, %；
D, quality proportioning is set according to the dry material of the practical water content W moisture content of the step C every kind of material detected and step B
P is dry, and the wet stock quality proportioning for calculating every kind of material is：P1 is wet=and P1 is dry ×（1+ W1 moisture content）, P2 it is wet=P2 is dry ×（1+ W2
Moisture content）... Pn is wet=and Pn is dry ×（1+ Wn moisture content）, %；
Summation P is wet is always for wet feed proportion：Wet+the P2 of P1 is wet+... Pn is wet, %；
E, dry always according to wet total and step B the dry material setting proportion summation P of the wet feed of step D proportion summation P, calculate object
Always moisture content is the reality of material：The wet total ÷ P of the total moisture content=P of W dry total -1；
F, to make heaped measure D heap according to the setting of the total moisture content of practical total moisture content W of step E and step A wet, and calculating hour, to make heap dry
Inventory is：W heap does the=wet ÷ of D heap（The total moisture content of 1+ W）, t/h；
G, make that heap dry doses W heap is dry and the dry material setting quality proportioning P and dry material of step B according to the hour of step F
Setting proportion summation P is dry total, and calculating every kind of material dry material discharge quantity hourly is：=dry total × W of the dry ÷ P1 of P1 is done under W1
Heap is done, dry=P2 does the dry total × W heap of ÷ P2 and does under W2 ..., and dry=Pn does the dry total × W heap of ÷ Pn and does under Wn；
H, it according to dry and moisture content W moisture content under the calculated every kind of material of step G dry material discharge quantity W hourly, calculates every
Planting material moisture discharge quantity hourly is：
Done under wet under W1=W1 ×（1+W1 moisture content）, done under wet=W2 under W2 ×（1+W2 moisture content）... under wet under Wn=Wn
Dry ×（1+Wn moisture content）；
I, according to calculated every kind of material moisture discharge quantity hourly of step H, various materials is successively piled into material heap, are pressed
After conventional mixing, blending ore is obtained, the production for sending sintering machine to complete sinter；
J, it is according to the practical wet feed amount added up of belted electronic balance：
W1 is wet, W2 is wet ..., and Wn is wet；
The moisture content W moisture content for participating in making the material sample detection of heap further according to every kind of step C calculates the accumulative dry of every kind of material
Doses and total siccative amount are：
W1 does the=wet ÷ of W1（1+W1 moisture content）, W2 it is dry=the wet ÷ of W2（1+W2 moisture content）... Wn does the=wet ÷ of Wn（1+Wn moisture content）；
W is dry total=W1 do+W2 it is dry+... Wn is dry；
K, it is done according to the accumulative dry material W of step J every kind of material of gained and dry material makes heap total amount W and does summation dry material proportion always
Dry total with P, calculating dry material quality proportioning P corresponding to every kind of material is：
P1 is dry=W1 do the dry total, P2 of the dry total × P of ÷ W it is dry=that W2 does the dry total × P of ÷ W is dry total ... Pn is dry=that Wn does ÷ W is dry total
× P is dry total；
Can verify that no matter how moisture content changes, can make actual wet stock proportion after deducting moisture content, it is still dry with setting
Material proportion is consistent.
The advantages of present invention has and effect：The present invention does not need to be transformed existing weaponry and equipment, it is only necessary to by above-mentioned
Step and calculating, so that it may in the case where moisture content changes, by the practical water content detected in due course, make actual wet stock
Proportion is still consistent with the dry material of setting proportion after deducting the practical water content, realizes accurate dosing, guarantees sinter
Quality.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
Embodiment 1
A kind of holding blending ore is dry, wet feed matches consistent method, including following each step：
A, according to 250 ton/hours of the consumption of wet stock per hour of sintering machine, the setting consumption of daily wet stock is calculated
For：6000 ton/days, further according to the actual use number of days of every heap wet stock, specially 16 days/heap, calculate every heap wet stock
It sets the wet total=96000 tons/heap of total amount W and obtains setting for every heap dry material after deducting the water content 6.2% that material measures in advance
Determine the dry total=90000 tons/heap of total amount W, while being 800 ton/hours according to the design load amount of existing sealing-tape machine, and consider to make
Heaped measure D heap is wet to be less than 800 ton/hours of design load amount, obtain the setting of every heap wet stock make heaped measure D heap it is wet=700 tons/small
When (or t/h)；
B, dry total according to the dry material setting total amount W for making heap, and the different grades of the various raw mineral materials of ingredient are participated in, and most
The grade requirement of whole sinter, calculates separately out fol-lowing values：
The dry material of various raw mineral materials set quality proportioning % as：Brazilian 8%=P1 of fine ore is dry, your 22%=P2 of sand fine ore is dry, South Africa
12%=P3 of fine ore is dry, and 35%=P4 of Dahongshan concentrate is dry, and the 23%=P5 that returns mine is dry, and 9.5%=P6 of agstone is dry, 5%=P7 of dolomite dust
It is dry；Wherein iron-bearing mineral adds up to：100%；
Dry material sets quality proportioning summation：
Dry total=the P1 of P does %+P2 and does % ... P7 dry=114.5%；
Corresponding dry material set amount is：
W1 does 114.5 × 90000=6288 tons of=8 ÷,
W2 does 114.5 × 90000=17293 tons of=22 ÷,
W3 does 114.5 × 90000=9432 tons of=12 ÷,
W4 does 114.5 × 90000=27511 tons of=35 ÷,
W5 does 114.5 × 90000=18079 tons of=23 ÷,
W6 does 114.5 × 90000=7467 tons of=9.5 ÷,
W7 does 114.5 × 90000=3930 tons of=5 ÷；
Dry material setting make heap total amount W it is dry total=W1 do+W2 it is dry+... W7 does=90000 tons/heap；
C, the material for making heap to every kind of participation, which is sampled, detects practical water content, is：W1 moisture content=8.73%, W2 moisture content=
14.7%, W3 moisture content=3%, W4 moisture content=9.57%, W5 moisture content=5.2%, W6 moisture content=2.7%, W7 moisture content=4.1%；
D, quality proportioning is set according to the dry material of the practical water content W moisture content of the step C every kind of material detected and step B
P is dry, and the wet stock quality proportioning for calculating every kind of material is respectively：
P1 is wet=and P1 is dry ×（1+ W1 moisture content）= 8%×（1+8.73%）=8.7%,
P2 is wet=and P2 is dry ×（1+ W2 moisture content）=22%×（1+14.7%）=25.234%,
P3 is wet=and P3 is dry ×（1+ W3 moisture content）=12%×（1+3%）=12.36%,
4 wet=P4 are dry ×（1+ W4 moisture content）=35%×（1+9.57%）=38.3495%,
P5 is wet=and P5 is dry ×（1+ W5 moisture content）=23%×（1+5.2%）=24.196%,
P6 is wet=and P6 is dry ×（1+ W6 moisture content）=9.5%×（1+2.7%）=9.7565%,
P7 is wet=and P7 is dry ×（1+ W7 moisture content）= 5%×（1+4.1%）=5.205%；
Summation P is wet is always for wet feed proportion：Wet+the P2 of P1 is wet+... P7 is wet=and 123.801%；
E, wet total and step B the dry material setting quality proportioning summation P of summation P is matched according to the wet feed of step D to do always, calculate
Practical total moisture content of material is out：The total moisture content of W=123.801% ÷ 114.5%-1=8.123%；
F, to make heaped measure D heap according to the setting of the total moisture content of practical total moisture content W of step E and step A wet, and calculating hour, to make heap dry
Inventory is：W heap does the=wet ÷ of D heap（The total moisture content of 1+ W）=700÷（1+8.123%）=646.41 ton/hours；
G, make that heap dry doses W heap is dry and the dry material setting quality proportioning P and dry material of step B according to the hour of step F
It is dry total to set quality proportioning summation P, calculating every kind of material dry material discharge quantity hourly is：
Dry under dry=8% 114.5% × 646.41t/h of ÷=45.16 t/h, the W2 of the dry total × W heap of the dry ÷ P of dry=P1 under W1=
It is dry total that the dry total × W heap of the dry ÷ P of P2 does the dry ÷ P of dry=P3 under=22% 114.5% × 646.41t/h of ÷=124.2 t/h, W3
× W heap, which is done, does=dry total × W heap dry=35% of the dry ÷ P of P4 under=12% 114.5% × 646.41t/h of ÷=67.75t/h, W4
Done under 114.5% × 646.41t/h of ÷=197.6t/h, W5=P5 do ÷ P it is dry total × dry=23% ÷ of W heap 114.5% ×
Done under 646.41t/h=129.84t/h, W6=dry=9.5% 114.5% × 646.41t/h of ÷ of the dry total × W heap of the dry ÷ P of P6=
=dry=5% 114.5% × 646.41t/h of the ÷=28.23t/h of the dry total × W heap of the dry ÷ P of P7 is done under 53.63t/h, W7；
H, according to dry and moisture content W moisture content under the calculated every kind of material of step G siccative discharge quantity W hourly, every kind is calculated
Material moisture discharge quantity hourly is：
Done under wet under W1=W1 ×（1+W1 moisture content）=45.16 t/h×（1+8.73%）Under=49.10 t/h, W2 under wet=W2
Dry ×（1+W2 moisture content）=124.2 t/h×（1+14.7%）Done under wet=W3 under=142.46 t/h, W3 ×（1+W3 moisture content）=
67.75t/h×（1+3%）=69.78 t/h,
Done under wet under W4=W4 ×（1+W4 moisture content）=197.6t/h×（1+9.57%）Under=216.51 t/h, W5 under wet=W5
Dry ×（1+W5 moisture content）= 129.84t/h×（1+5.2%）Done under wet=W6 under=136.59 t/h, W6 ×（1+W6 moisture content）=
53.63t/h×（1+2.7%）=55.08 t/h,
Done under wet under W7=W7 ×（1+W7 moisture content）= 28.23t/h×（1+4.1%）=29.39 t/h；
I, according to calculated every kind of material moisture discharge quantity hourly of step H, various materials is successively piled into material heap, are pressed
After conventional mixing, blending ore is obtained, the production for sending sintering machine to complete sinter；
J, it is according to the wet feed amount that belted electronic balance adds up：
It is 6842 tons that W1 is wet, W2 it is wet be 19826 tons, W3 it is wet be 9718 tons, W4 it is wet be 30082 tons, W5 it is wet be 19022 tons, W6 it is wet
For 7666 tons, W7 wet be 4085 tons；
The moisture content W moisture content for participating in making the material sample detection of heap further according to every kind of step C calculates the accumulative dry of every kind of material
Amount and total siccative amount are：
W1 does the=wet ÷ of W1（1+W1 moisture content）=6842÷（1+8.73）=6293 tons,
W2 does the=wet ÷ of W2（1+W2 moisture content）=19826÷（1+14.7%）=17285 tons,
W3 does the=wet ÷ of W3（1+W3 moisture content）=9718÷（1+3%）=9435 tons,
W4 does the=wet ÷ of W4（1+W4 moisture content）=30082÷（1+9.57%）=27455 tons,
W5 does the=wet ÷ of W5（1+W5 moisture content）= 19022÷（1+5.2%）=18082 tons,
W6 does the=wet ÷ of W6（1+W6 moisture content）= 7666÷（1+2.7%）=7464 tons,
W7 does the=wet ÷ of W7（1+W7 moisture content）= 4085÷（1+4.1%）=3924 tons,
W does the dry+W7 of the dry+W6 of the dry+W5 of the dry+W4 of the dry+W3 of the dry+W2 of always=W1 and does=89938 tons；
K, it is done according to the accumulative dry material W of step J every kind of material of gained and dry material makes heap total amount W and does summation dry material proportion always
Dry total with P, calculating dry material quality proportioning P corresponding to every kind of material is：
P1 is dry=W1 do dry total=6293 ÷ 89938 × 1.145=8% of the dry total × P of ÷ W,
P2 is dry=W2 do dry total=17285 ÷ 89938 × 1.145=22% of the dry total × P of ÷ W,
P3 is dry=W3 do dry total=9435 ÷ 89938 × 1.145=12% of the dry total × P of ÷ W,
P4 is dry=W4 do dry total=27455 ÷ 89938 × 1.145=35% of the dry total × P of ÷ W,
P5 is dry=W5 do dry total=18082 ÷ 89938 × 1.145=23% of the dry total × P of ÷ W,
P6 is dry=W6 do dry total=7464 ÷ 89938 × 1.145=9.5% of the dry total × P of ÷ W,
P7 is dry=and W7 does dry total=3924 ÷ 89938 × 1.145=5% of the dry total × P of ÷ W；
Can verify that no matter how moisture content changes, can make actual wet stock proportion after deducting moisture content, it is still dry with setting
Material proportion is consistent.
Claims (1)
1. a kind of holding blending ore is dry, wet feed matches consistent method, it is characterised in that including following each step：
A, according to the wet stock consumption ton/hour per hour of sintering machine, the setting consumption of daily wet stock is calculated t/ days,
Further according to the actual use number of days of every heap wet stock, day/heap, the setting total amount W for calculating every heap wet stock is wet total, ton/heap, button
After the water content measured in advance except material, the setting total amount W for obtaining every heap dry material is dry total, ton/heap, while according to sealing-tape machine
Design load amount t/h, wet, the t/h that show that heaped measure D heap is made in the setting of every heap wet stock, and this makes that heaped measure D heap is wet to be less than design load
Measure t/h；
B, the dry material total amount W for making heap according to plan is dry total, and participates in making the different grades of the various raw mineral materials of heap, and most
The grade requirement of whole sinter, calculates separately out fol-lowing values：
The dry material of various raw mineral materials set quality proportioning % as：
P1 does %, P2 and does the dry % of % ... Pn；
Dry material sets the dry % ... Pn of the dry %+P2 of the dry total=P1 of quality proportioning summation P and does %；
Corresponding dry material set amount is：W1 is dry, W2 is dry ..., and Wn is dry, ton；
Dry material setting make heap total amount W it is dry total=W1 do+W2 it is dry+... Wn is dry, ton/heap；
C, the material for making heap to every kind of participation, which is sampled, detects practical water content, is：
W1 moisture content, W2 moisture content ... Wn moisture content, %；
D, quality proportioning is set according to the dry material of the practical water content W moisture content of the step C every kind of material detected and step B
P is dry, and the wet stock quality proportioning for calculating every kind of material is：P1 is wet=and P1 is dry ×（1+ W1 moisture content）, P2 it is wet=P2 is dry ×（1+ W2
Moisture content）... Pn is wet=and Pn is dry ×（1+ Wn moisture content）, %；
Summation P is wet is always for wet feed proportion：Wet+the P2 of P1 is wet+... Pn is wet, %；
E, dry always according to wet total and step B the dry material setting proportion summation P of the wet feed of step D proportion summation P, calculate object
Always moisture content is the reality of material：The wet total ÷ P of the total moisture content=P of W dry total -1；
F, to make heaped measure D heap according to the setting of the total moisture content of practical total moisture content W of step E and step A wet, and calculating hour, to make heap dry
Inventory is：W heap does the=wet ÷ of D heap（The total moisture content of 1+ W）, t/h；
G, make that heap dry doses W heap is dry and the dry material setting quality proportioning P and dry material of step B according to the hour of step F
Setting proportion summation P is dry total, and calculating every kind of material dry material discharge quantity hourly is：=dry total × W of the dry ÷ P1 of P1 is done under W1
Heap is done, dry=P2 does the dry total × W heap of ÷ P2 and does under W2 ..., and dry=Pn does the dry total × W heap of ÷ Pn and does under Wn；
H, it according to dry and moisture content W moisture content under the calculated every kind of material of step G dry material discharge quantity W hourly, calculates every
Planting material moisture discharge quantity hourly is：
Done under wet under W1=W1 ×（1+W1 moisture content）, done under wet=W2 under W2 ×（1+W2 moisture content）... under wet under Wn=Wn
Dry ×（1+Wn moisture content）；
I, according to calculated every kind of material moisture discharge quantity hourly of step H, various materials is successively piled into material heap, are pressed
After conventional mixing, blending ore is obtained, the production for sending sintering machine to complete sinter；
J, it is according to the practical wet feed amount added up of belted electronic balance：
W1 is wet, W2 is wet ..., and Wn is wet；
The moisture content W moisture content for participating in making the material sample detection of heap further according to every kind of step C calculates the accumulative dry of every kind of material
Doses and total siccative amount are：
W1 does the=wet ÷ of W1（1+W1 moisture content）, W2 it is dry=the wet ÷ of W2（1+W2 moisture content）... Wn does the=wet ÷ of Wn（1+Wn moisture content）；
W is dry total=W1 do+W2 it is dry+... Wn is dry；
K, it is done according to the accumulative dry material W of step J every kind of material of gained and dry material makes heap total amount W and does summation dry material proportion always
Dry total with P, calculating dry material quality proportioning P corresponding to every kind of material is：
P1 is dry=W1 do the dry total, P2 of the dry total × P of ÷ W it is dry=that W2 does the dry total × P of ÷ W is dry total ... Pn is dry=that Wn does ÷ W is dry total
× P is dry total；
Can verify that no matter how moisture content changes, can make actual wet stock proportion after deducting moisture content, it is still dry with setting
Material proportion is consistent.
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