CN101435024B - Raw copper air refining process based on mathematical model - Google Patents

Raw copper air refining process based on mathematical model Download PDF

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CN101435024B
CN101435024B CN 200810238370 CN200810238370A CN101435024B CN 101435024 B CN101435024 B CN 101435024B CN 200810238370 CN200810238370 CN 200810238370 CN 200810238370 A CN200810238370 A CN 200810238370A CN 101435024 B CN101435024 B CN 101435024B
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amount
heat
reaction tower
flue dust
slag
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CN101435024A (en
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张士庆
殷庆飞
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Yanggu Xiangguang Copper Co Ltd
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Yanggu Xiangguang Copper Co Ltd
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Abstract

The invention discloses a crude copper converting technique based on mathematical model guide, comprising the following steps: (1) copper matte, dusts, lime and quartz sand are placed into a copper matte nozzle of a flash converting furnace, charging materials and technique wind are conveyed into a reaction tower of the converting furnace for completing the converting reaction fast; (2) melts generated by the former reaction are separated into crude copper and slag in a sedimentation tank and the produced crude copper enters an anode furnace by a chute periodically so as to carry out refining; and (3) a mathematical model of crude copper converting of the flash furnace is established; an 11 element linear equation set is established by metal balance so as to obtain the oxygen amount needed by the material for chemical reaction in the furnace when the sulfur content in the crude copper reaches the target value and the calcium amount and silicon amount when the grades of the ferroferric oxide and silicon in the slag reach the target values; the heat balance is the obtaining of oxygen concentration or natural gas amount when the temperature of the slag reaches the target value; the model not only can use the oxygen concentration as an unknown number but also can use the natural gas amount as an unknown number; and the technique can improve the production efficiency and prolong the service life of the production equipment, and has the advantages of saving energy and reducing emission.

Description

A kind of blister copper blowing technology that instructs based on mathematical model
Technical field
The present invention relates to copper and smelt production field, exactly relate to a kind of blister copper blowing technology that instructs based on mathematical model.
Background technology
Kenny Ke Te-Outokumpu flash stove blister copper blowing technology is that grinding, dried matte, unslaked lime, quartz are sprayed in the tower from flash furnace reaction tower top matte nozzle with flue dust, normal temperature rich gas air, borrow the oxidation reaction heat and the fuel combustion heat of sulfide in the matte, in tower, form about 1350-1500 ℃ high-temperature flue gas, the metallurgical chemistry of finishing converting process in moment into stove material major part is reacted, form blister copper, slag and contain SO 2Flue gas.Because this technology is continuous production blister copper in airtight flash stove, have environmental protection, energy-conservation, characteristics that throughput is big, be state-of-the-art blister copper production technology on the our times.
The essence of flash stove blister copper blowing is by the impurity in the oxidizing reaction removal matte, and the blister copper product of output expectation grade, and this just requires under the situation of different raw materials, different feeding coals, the amount of oxygen that given suitable oxidizing reaction instead needs; On the other hand, the temperature control in the stove is also of crucial importance, and it not only influences the life-span that production operation also influences also influences body of heater, and the length of converter life not only influences the overhaul cost of stove and also influences production capacity.But, to smelt in the production process at copper, the physical and chemical process in the stove is very complicated, relies on artificial experience not produce a desired effect under the large-scale commercial production condition.Therefore need a kind of model of research, describe physical and chemical process in the stove, be used under different technology conditions, calculating optimal processing parameter with mathematical method, with reach quality product steadily, the purpose that reduces energy consumption, prolong converter life.
Summary of the invention
The object of the invention provides a kind of blister copper blowing technology that instructs based on mathematical model, it can be according to metallurgy about pyrometallurgical processes chemical equilibrium and thermodynamic equilibrium theory in airtight environment, set up flash stove blister copper blowing mathematical model, utilize the parameter input of mathematical model with each element in the raw material, calculate required target component and operating parameters, according to each the parameter control converting furnace work that calculates, the purpose that reach energy-saving and emission-reduction, prolongs converter life.
The present invention is achieved by the following technical solutions: a kind of blister copper blowing technology that instructs based on mathematical model may further comprise the steps:
1. insert the matte nozzle of flash converting furnace after earlier matte, flue dust, lime and quartz sand being mixed, again furnace charge with being inserted the reaction tower of converting furnace by nozzle in, is finished technology wind the blowing reaction rapidly, the oxygen gesture of reaction tower region intermediate for a change, utilize the central oxygen rifle of installing in the reaction tower to be blown into oxygen, and in reaction tower, feed pressurized air, improve the distribution situation of furnace charge in reaction tower by compressed-air actuated air-flow; The degree of oxidation in the stove and the temperature of output object are controlled by the oxygen concn of oxygen/material ratio and technology wind respectively, when furnace heat is not enough, chew additional heat by the burning of the Sweet natural gas around the matte nozzle, under the situation of heat surplus, then add flue dust and regulate the interior thermal balance state of stove; 2. the melt of going up step reaction generation is separated into blister copper and slag in settling tank, the blister copper of output regularly enters anode furnace by chute and carries out refining, the blowing slag returns flash smelting furnace and continues melting after the levigate dehydration of shrend, the flue gas of converting furnace send acid making system relieving haperacidity after waste heat boiler and electricity gather dust, flue gas returns flash smelting through flue dust and the electric flue dust that gathers dust that waste heat boiler settles down behind crushing and screening, other flue dust that electricity gathers dust then return converting furnace and make cold burden; 3. according to metallurgy about pyrometallurgical processes chemical equilibrium and thermodynamic equilibrium theory in closed environment, set up flash stove blister copper based on metal balance and the thermal equilibrium mathematical model that blows; Set up 11 yuan of systems of linear equations by metal balance, to ask for the needed oxygen amount of material chemical reaction in stove when the blister copper sulfur-bearing reaches target value, Z 250, the calcium amount when the silicon grade reaches target value and silicon amount in the slag; Thermal equilibrium is oxygen concentration or the amount of natural gas when asking for the slag temperature and reaching target value, and model both can be oxygen concentration as unknown number, also can be with amount of natural gas as unknown number;
Utilize this mathematical model, can accurately calculate the optimal operation parameter of needs according to given target component and working condition, make the crucial controlling index of blister copper blowing technology process: Z 250, slag temperature keep stability in blister copper sulphur grade, the slag, enhance productivity, reduce the purpose of consumption, save energy, prolongation converter life to reach; In flash stove blister copper blowing production process, its physical and chemical process is very complicated, hold fully each because of mutual be not very difficult to the influence of converting process.For the ease of in actual production, using, choose the blister copper flash and blow in the alkynes process principal element as the element of equilibrium system.The trace thing is grouped among the Other mutually with unknowable thing mutually.
The control requirement that blowing is produced according to the blister copper history, the target component and the operating parameters of process are set at:
Controlled member Controlled variable Operating parameters
Slag Silicon grade Cao/Fe temperature Silicon ratio or silicon amount Cao ratio or Cao amount technology wind oxygen concn
Blister copper The S grade Oxygen/material ratio or air capacity+amount of oxygen
The input material is produced in the blister copper blowing: the oxygen that solid matte, the electricity that returns gather dust flue dust (C flue dust), lime, silicic acid ore deposit and be blown into solid materials; Shoveling out thing is: blister copper, slag, boiler smoke (B flue dust), electricity gather dust flue dust (C flue dust) and SO 2Flue gas.
Require and the input-output condition according to control, be constructed as follows metal weighing apparatus table:
Figure G2008102383703D00021
Figure G2008102383703D00031
Remarks: G in the table: set-point C: calculate X before solving an equation n: the unknown number blank: calculate the back of solving an equation
--: do not calculate
According to the metal balance principle, with the unknown quantity in the metal balance table, be configured to 11 yuan of systems of linear equations, separate this system of equations, can try to achieve to reaching the operating value of the required oxygen quotient of blister copper blowing target component, amount of lime, silicic acid ore deposit amount.
In flash stove blister copper converting process, the slag temperature of settling tank is a temperature controlled index in the stove, and the temperature that enters solid, liquid, gas three-phase mixture in the reaction tower before the settling tank directly influences the slag temperature of settling tank.
Temperature control at reaction tower is controlled by oxygen concentration that is blown into solid materials and the fuel combustion heat of replenishing.List whole heat incomes and heat expenditure and make balance by heat balance table like this, just can obtain the oxygen concentration that reaction tower is blown into when reaching target slag temperature.
Reaction tower thermal equilibrium
Because flash stove blister copper blowing can be produced under high oxygen-rich concentration, can realize the self-heating blowing, so model can specify fuel quantity to calculate oxygen concentration, also can specify oxygen concn to calculate fuel quantity.
The technical essential of FCF (that is flash blowing)
1) FCF adopts the normal temperature oxygen-enriched air converting, and oxygen concn can reach more than 60%.
2) technology air quantity=process air amount+technology oxygen
Distribute air quantity (pressurized air)=6.3F+2.9u+0.526*V/F
F: ore deposit amount (matte), u: technology wind speed, V: technology air quantity
Central authorities' oxygen amount=technology oxygen amount * 7%
Technology oxygen is industrial preparation oxygen.
3) the blowing slag is a calcium ferrite slag type (Cu-Fe-CaO).
4) to contain S low more for blister copper, requires oxidizing atmosphere strong more, and the slag cupric is high more.
The copper of mechanical entrainment is that the chemical equilibrium solubleness of copper is in the slag under 2%, 1300 ℃ the smelting condition in slag:
(％Cu)≈7.75*A*P 02 1/4
Wherein: for the calcium ferrite slag, A=19-23, this A=25-35 of silicic acid scum.
5) stablize Fe 3O 4And CaSO 4Dross is the key of blowing operation.
6) Fe 3O 4Solubleness height in the calcium ferrite slag can reach 20%.
7) for dross is stable, need to add a spot of silicon, when silicon exceeds certain limit, have 2CaO.SiO 2Separate out, the viscosity of slag increases, and causes the slagging operational difficulty, and can eliminate its influence this moment by regulating CaO/Fe.
8) according to the related data introduction, " different with flash smelting, in the flash blowing reaction, the whole oxidations of the S in the matte only have a spot of S to be distributed in blister copper and the slag.Most S oxidation in reaction tower is about 2/3 of total S, and the product of oxidizing reaction mainly contains: Cu 2O, CuO, Cu 2O.Fe 2O 3, CuO.Fe 2O 3, Fe 3O 4Deng.Unoxidized S is Cu 2-XS (contain≤0.5% iron), in the responding layer in settling tank on the top of the slag, the oxide compound of copper (mainly is Cu 2O) and superoxide (CuO, the Fe of copper, iron 2O 3, Fe 3O 4Deng) generate metallic copper with the sulfide reaction.
The main design parameters of FCF
Sequence number Parameter name Unit Parameter value
1 Reference temperature ℃ 25
2 The blister copper grade ％ 98.5
3 The blister copper sulfur-bearing ％ 0.25
4 The slag cupric ％ 20
5 Dust rate ％ 7.2
6 The flue dust return rate ％ 53.3
7 The reaction tower flue-gas temperature ℃ 1340
8 The settling tank flue-gas temperature ℃ 1390
9 The funnel uptake flue-gas temperature ℃ 1290
10 The blister copper temperature ℃ 1250
11 Slag temperature ℃ 1290
12 The reaction tower coefficient of oxygen utilization ％ 99
13 Settling tank, funnel uptake coefficient of oxygen utilization ％ 95
14 Air contains the oxygen rate ％ 21
15 The air moisture rate ％
16 The solid matte moisture rate ％ 0.3
17 The solid matte temperature
18
19
20 The reaction tower heat radiation MJ/h 14000
The settling tank heat radiation MJ/h 7000
The funnel uptake heat radiation MJ/h 3200
Concentrate, flux, Sweet natural gas design mix
● furnace charge
Chemical ingredients Cu ?S ?Fe ?SiO 2 ?CaO ?Mgo
Concentrate 27 ?29.5 ?26 ?6 ?1.5 *
Smelting furnace quartz sand 2 ?85
Converting furnace quartz sand 2 ?85
Converting furnace unslaked lime 1.8 ?90
The converting furnace matte 70
* be CaO+MgO=1.5
● gas component and calorific value
Composition CH 4 ?C 2H 6 ?C 3H 8 ?N 2 ?CO 2 ?Others ?Q LowKJ/Nm 3
％ 95.042 ?1.62 ?0.407 ?1.156 ?1.18 ?0.595 ?35587
● industrial preparation oxygen concn: 99.6%
FCF flue dust chemical ingredients and composition of ores
● the FCF boiler smoke
Figure G2008102383703D00051
● the FCF electricity flue dust that gathers dust
Figure G2008102383703D00052
Figure G2008102383703D00061
Supposition of FCF compound form and calculating
The input and output material of FCF
The compound of input and output material and stoichiometric calculation
Computational constant
Coding Calculating formula Explanation
K1 32.06/(63.55*2) Cu 2S：S/Cu
K2 32.06/63.55 CuS：S/Cu
K3 32.06/55.85 FeS：S/Fe
K4 55.85/32.06 FeS：Fe/S
K5 16*4/63.55 CuSO 4：O/Cu
K6 16*4/55.85 FeSO 4：O/Fe
K7 16*/(55.85*3) Fe 3O 4：O/Fe
K8 16/63.55 CuO：O/Cu
K9 2*55.85/(28.06+32) 2FeO.SiO 2：Fe/SiO 2
K10 16/55.85 FeO：O/Fe
K11 16*3/(55.85*2) Fe 2O 3：O/Fe
K12 32.06/(40.08+32.06+16*4) CaSO 4：S/CaSO 4
K13 55.85/(55.85+32.06+16*4) FeSO 4：Fe/FeSO 4
K14 16/55.85 2FeO.SiO2：O/Fe
K15 16*4/32.06 CaSO 4：O/S
K16 16/(63.55*2) Cu 2O：O/Cu
K17 16*4/32.06 CuSO 4：O/S
K18 63.55*2/32.06 Cu 2S：Cu/S
Solid matte
● compound constitutes
Composition Compound form Ratio
?CuFe Cu 2SCu 2OFeSFe 3O 4 *2FeO.SiO 2 ?P1P2(Fe：S)
Remarks: *2FeO.SiO 2Consider the situation of matte band slag.
● stoichiometric calculation
The Cu amount:
Cu 2The Cu amount of O
The Cu amount * P1 of=matte
The Fe amount:
The Fe amount of FeS
=[the S amount-[Cu amount-Cu of matte of matte 2The Cu amount of O] * k1] * P2
2FeO.SiO 2Fe amount
The SiO of=matte 2Amount * K9
Fe 3O 4Fe amount
Fe amount-the 2FeO.SiO of=matte Fe amount-FeS 2Fe amount
The O amount:
O amount=Fe 3O 4O amount+2FeO.SiO 2O amount+Cu 2The O amount of O
Wherein: Fe 3O 4O amount=Fe 3O 4Fe amount * K7
2FeO.SiO 2O amount=2FeO.SiO 2Fe amount * K14
Cu 2O amount=the Cu of O 2The Cu amount * K16 of O
Unslaked lime
● compound constitutes
Composition Compound form Ratio
CuFe CaOMgOCaCO 3MgCO 3SiO 2 P3P4
Remarks: also be applicable to white lime.
● stoichiometric calculation
CaCO 3Amount=CaO amount * P3
MgCO 3Amount Mgo amount * P4
The silicic acid ore deposit
● stoichiometric calculation
O 2The Fe amount * K11 in amount=silicic acid ore deposit
The FCF slag
● compound constitutes
Composition Compound form Ratio
Cu Fe S CuCu 2SCu 2OCuOFeSFe 2O 3Fe 3O 4FeO x.CaO2FeO.SiO 2CaSO 4 P5 P6P7 P8P9 P10 (with respect to the quantity of slag) P30 (ratio of reaction tower S oxidation)
Remarks: according to the technical essential 8 of 1,2,3 joints) consider to do two kinds of selections by the ratio that changes reaction tower S oxidation:
1, part S finishes reaction at reaction tower, and part is finished on the top of the slag.This moment, settling tank thermal equilibrium should be considered the heat of oxidation of S.
2, all finish at reaction tower.
● stoichiometric calculation
The Cu amount:
Cu amount * P5 in the metal Cu amount=slag
Cu 2Cu amount * P6 in the Cu amount=slag of O
Cu amount * P7 in the Cu amount=slag of CuO
The Fe amount:
The Fe amount of FeS
={ Cu amount-the Cu in the S amount * P30-[slag in the slag 2The Cu amount of the Cu amount-CuO of O
-metal Cu amount] * k1-quantity of slag * P10*K12}*P2
Fe 2O 3Fe amount=slag in Fe amount * P8
Fe 3O 4Fe amount=slag in Fe amount * P9
2FeO.SiO 2Fe amount=slag in SiO 2Amount * K9
FeO X.CaO the Fe amount-Fe of the Fe amount-FeS in the Fe amount=slag 2O 3Fe amount-Fe 3O 4Fe amount-2FeO.SiO 2
Fe amount
The O amount:
O amount=Cu 2O amount+the Fe of the O amount+CuO of O 2O 3O amount+Fe 3O 4O amount+FeO X.CaO O amount+2FeO.SiO 2O
Amount+CaSO 4O amount
Wherein: Cu 2O amount=the Cu of O 2The Cu amount * K16 of O
The Cu amount * K8 of the O amount=CuO of CuO
Fe 2O 3O amount=Fe 2O 3Fe amount * K11
Fe 3O 4O amount=Fe 3O 4Fe amount * K7
FeO X.CaO O amount=FeO X.CaO Fe amount * K14
2FeO.SiO 2O amount=2FeO.SiO 2Fe amount * K14
CaSO 4O amount=quantity of slag * P10*K12*K15
The electricity flue dust (FCF C flue dust) that gathers dust
● compound constitutes
Composition Compound form Ratio
?Cu?Fe Cu 2SCu 2OCuSO 4Fe 3O 4SiO 2CaO P11P12
Stoichiometric calculation
The Cu amount:
The Cu amount * P11 of the Cu amount=FCF C flue dust of Cu2S
Cu 2The Cu amount * P12 of the Cu amount=FCF C flue dust of O
CuSO 4The Cu amount-Cu of Cu amount-Cu2S of Cu amount=FCF C flue dust 2The Cu amount of O
The Fe amount:
Fe 3O 4Fe amount=FCF C flue dust Fe amount
The O amount:
O amount=Cu 2O amount+the CuSO of O 4O amount+Fe 3O 4O amount
Cu 2O amount=the Cu of O 2The Cu amount * K16 of O
CuSO 4O amount=[Cu of the S amount-Cu2S of FCF C flue dust measures * K1] * K17
Fe 3O 4O amount=FCF C flue dust Fe amount * K7
Boiler smoke (FCF B flue dust)
● compound constitutes
Composition Compound form Ratio
CuFe Cu 2SCu 2OFe 3O 4SiO 2CaO
● stoichiometric calculation
The Cu amount:
The S amount * K18 of the Cu amount=FCF B flue dust of Cu2S
The Fe amount:
Fe 3O 4Fe amount=FCF B flue dust Fe amount
The O amount:
O amount=Cu 2O amount+the Fe of O 3O 4O amount
Cu 2The O amount of O=[the Cu amount of the Cu amount-Cu2S of FCF B flue dust] * K16
Fe 3O 4O amount=FCF B flue dust Fe amount * K7
Blister copper
● compound constitutes
Composition Compound form Ratio
?Cu?Fe CuCu 2SCu 2OFe 3O 4 P13
● stoichiometric calculation
The Cu amount:
S amount * K18 in the Cu amount=blister copper of Cu2S
Cu 2Cu amount * P13 in the Cu amount=blister copper of O
The Fe amount:
Fe 3O 4Fe amount=blister copper in Fe amount
The O amount:
O amount=Cu 2O amount+the Fe of O 3O 4O amount
Cu 2O amount=the Cu of O 2The Cu amount * K16 of O
Fe 3O 4O amount=blister copper in Fe amount * K7
The metallurgical conceptual model that calculates of 3 FCF
The metallurgical computation model general introduction of FCF
1, the model scope of application
This model is used for auspicious smooth copper industry blister copper blowing production operation and instructs.
2, the basic skills of tectonic model
This model is based on metal balance and thermal equilibrium, calculates the operating parameters standard of needs according to given target component and design conditions.
The operating duty that provides with the supplier is different, the flue dust of this model, oxygen fuel full entry balance.
The adding of oxygen fuel and data are given by artificial decision.
3, controlled member and parameter
Controlled member Controlled variable Operating parameters
Slag Silicon grade Cao/Fe temperature Silicon ratio or silicon amount Cao ratio or Cao amount technology wind oxygen concn
Blister copper The S grade Oxygen/material ratio or air capacity+amount of oxygen
4, influence the model accuracy analysis
1) fluctuation of matte composition is excessive.
2) the feed metering is inaccurate.
3) furnace charge and product thing are not clear mutually or ratio is inaccurate.Therefore after operation, preferably make material phase analysis.
4) calculating accuracy checking means lacks.
5) when matte band slag is serious, silicic acid ore deposit amount can be negative, and this is a normal phenomenon.Its prompting needs to adjust CaO/Fe and improves the working of a furnace.
The basic parameter of model
1, target component:
Coding Parameter name Symbol Initial value/reference value Unit Remarks
Slag SiO 2Grade 2 ％
Slag CaO/Fe 0.3-0.5
The slag temperature 1290 ℃
Blister copper S grade 0.25 ％
2, given parameter
Coding Parameter name Symbol Initial value/reference value Unit Remarks
The matte amount t/h
The matte grade ％
The C fume amount t/h
Amount of natural gas Nm 3
The burning air quantity Nm 3
Burning wind oxygen concn ％
The technology wind speed 100 M/S
3, grade
Coding Parameter name Symbol Initial value/reference value Unit Remarks
Lime Design load Pressing analytical results sets
The silicic acid ore deposit Design load Pressing analytical results sets
Blister copper Cu 98.5 ％
Fe 0.7 ％
SiO 2 0 ％
CaO 0 ％
MgO 0 ％
Slag Cu
20 ％ A-b* blister copper S% 1/2
S 0.1 ％
Fe ％ Fe amount/the quantity of slag
CaO ％ CaO amount/the quantity of slag
MgO ％ (adding MgO amount-slag MgO amount in addition)/quantity of slag
Other (dropping into Other-output slag Other in addition)/quantity of slag
The B flue dust With reference to 1,2,7
The C flue dust With reference to 1,2,7
4, constant, coefficient
Coding Parameter name Symbol Initial value/reference value Unit Remarks
Matte Cu 2The O ratio P1 5 ％
Become the F:S of FeS P2 1.05 -
CaCO among the CaO 3Ratio P3 20 ％
MgCO among the MgO 3Ratio P4 20 ％
Cu ratio in the slag P5 2 ％
Cu in the slag 2The O ratio P6 5 ％
CuO ratio in the slag P7 2 ％
Fe in the slag 2O 3Ratio P8 0 ％
Fe in the slag 3O 4Ratio P9 40 ％
CaSO in the slag 4Ratio P10 2 ％ Relatively and the quantity of slag
C flue dust Cu 2The S ratio P11 90 ％
Cu in the slag 2The O ratio P12 5 ％
Blister copper Cu 2The O ratio P13 2 ％
P14 ％
P15 ％
Reaction tower S oxidation ratio P30 100/70 ％
FCF flue dust incidence P40 7.2 ％
FCF C dust rate P41 53.3 ％
Other coefficient in the flue dust P42 90 ％
The industry oxygen concn P43 99.6 ％
Sweet natural gas contains C and leads P44 60
Sweet natural gas contains H and leads P45 37
Sweet natural gas contains N 2Rate P46 1.156
Sweet natural gas contains CO 2Rate P47 1.18
Reaction tower technology wind O 2Efficient η1 99 ％
Reaction tower technology wind O 2The efficient correction △η1 0 ％
Reaction tower burning wind O 2Efficient η2 99 ％
Settling tank burning wind O 2Efficient η3 95 ％
Funnel uptake burning wind O 2Efficient η4 95 ％
Air contains O 2Rate P44 21 ％
The air moisture rate P45 2 ％
The matte moisture rate P46 0.3 ％
The lime moisture rate P47 2 ％
Silicic acid ore deposit moisture rate P48 2 ％
The radiation heat loss leads P49 7 ％
Reference temperature T1 25 ℃
The reaction tower wind pushing temperature T2 25 ℃
Charge-temperature T3 80 ℃
The reaction tower flue-gas temperature T4 1340 ℃
The settling tank flue-gas temperature T5 1390 ℃
The funnel uptake flue-gas temperature T6 1290 ℃
The slag temperature T7 1290 ℃
The blister copper temperature T8 1250 ℃
The reaction tower flue gas and the slag temperature difference t1 50 ℃
The reaction tower flue gas and the blister copper temperature difference t2 90 ℃
Reaction tower flue-gas temperature modifying term △Tg 0 ℃
S+O 2Generate heat Q1 Kj/Kg-S
FeO generates heat Q2 Kj/Kg-Fe
Fe 3O 4Generate heat Q3 Kj/Kg-Fe
CuO+SO 3Generate heat Q4 Kj/Kg-C u
CaO+SO 3Generate heat Q5 Kj/Kg-C a
FeSO 4Decomposition heat Q6 Kj/Kg-Fe
CuSO 4Decomposition heat Q7 Kj/Kg-C u
FeS is decomposition heat Q8 Kj/Kg-Fe
Fe 2O 3Decomposition heat Q9 Kj/Kg-Fe
CuO is decomposition heat Q10 Kj/Kg-C u
Cu 2S is decomposition heat Q11 Kj/Kg-C u
CaCO 3Decomposition heat Q12 Kj/Kg-C aO
MgCO 3Decomposition heat Q13 Kj/Kg-MgO
2FeO.SiO 2Decomposition heat Q14 Kj/Kg-Fe
2FeO.SiO 2Generate heat Q15 Kj/Kg-Fe
FeOX.CaO generates heat Q16 Kj/Kg-Fe
Moisture evaporation heat Q17 Kj/Kg
The saturation water enthalpy Q18 Kj/Kg
The moisture enthalpy of packing into Q19 Kj/Kg
The reaction tower thermosteresis Q20 14000 Mj/h
The settling tank thermosteresis Q21 7000 Mj/h
The funnel uptake thermosteresis Q22 3200 Mj/h
5, output parameter
Coding Parameter name Symbol Initial value/reference value Unit Remarks
Add amount of lime t/h
Add silicic acid ore deposit amount t/h
Add the lime ratio
Add silicic acid ore deposit ratio
Reaction tower oxygen/matte ratio O 2Nm 3/t Total oxygen
Reaction tower technology wind oxygen concentration ％ Total total wind of oxygen
Reaction tower technology air quantity Nm 3 Total total wind of oxygen
Reaction tower technology oxygen amount Nm 3 Deduct central oxygen amount
Reaction tower process air amount Nm 3 Deduction distributes air quantity
Central authorities' oxygen amount Nm 3
Distribute air quantity Nm 3
Metal balance
The metal balance table
Figure G2008102383703D00141
Remarks: G in the table: set-point C: calculate X before solving an equation n: the unknown number blank: calculate the back of solving an equation
--: do not calculate
The metal balance equation
1, material balance
Matte amount+input C fume amount+amount of lime+silicic acid ore deposit amount+O amount
Other amount in the S amount+flue gas in=blister copper amount+quantity of slag+output B fume amount+output C fume amount+flue gas
Matte amount+input C fume amount+X 1+ X 2+ X 11
＝X 3+X 4+X 7+X 8+X 9+X 10
2, Cu balance
Matte Cu amount+input C flue dust Cu amount+lime Cu amount+silicic acid ore deposit Cu amount
Cu amount+output B flue dust Cu amount+output C flue dust Cu amount in the=blister copper Cu amount+slag
Matte Cu amount+input C flue dust Cu amount+X 1* lime Cu grade+X 2* silicic acid ore deposit Cu grade
=X 3* blister copper Cu grade+X 4* the Cu grade+X in the slag 7* output B flue dust Cu grade
+ X 8* output C flue dust Cu grade
3, Fe balance
Matte Fe amount+input C flue dust Fe amount+lime Fe amount+silicic acid ore deposit Fe amount
Fe amount+output B flue dust Fe amount+output C flue dust Fe amount in the=blister copper Fe amount+slag
Matte Fe amount+input C flue dust Fe amount+X 1* lime Fe grade+X 2* silicic acid ore deposit Fe grade
=X 3* blister copper Fe grade+X 5+ X 7* output B flue dust Fe grade+X 8* output C flue dust Fe grade
4, S balance
Matte S amount+input C flue dust S amount+lime S amount+silicic acid ore deposit S amount
S amount in the S amount+output B flue dust S amount+output C flue dust S amount+flue gas in the=blister copper S amount+slag
Matte S amount+input C flue dust S amount+X 1* lime S grade+X 2* silicic acid ore deposit S grade
=X 3* blister copper S grade+X 4* the S grade+X in the slag 7* output B flue dust S grade
+ X 8* output C flue dust S grade+X 9
5, SiO 2Balance
Matte SiO2 amount+input C flue dust SiO2 amount+lime SiO2 amount+silicic acid ore deposit SiO2 amount
SiO2 amount+output B flue dust SiO2 amount+output C flue dust SiO2 amount in the=blister copper SiO2 amount+slag
Matte SiO2 amount+input C flue dust SiO2 amount+X 1* lime SiO2 grade+X 2* silicic acid ore deposit SiO2 grade
=X 3* blister copper SiO2 grade+X 4* the SiO in the slag 2Grade+X 7* output B flue dust SiO2 grade
+ X 8* output C flue dust SiO2 grade
6, CaO balance
Matte CaO amount+input C flue dust CaO amount+lime CaO amount+silicic acid ore deposit CaO amount
CaO amount+output B flue dust CaO amount+output C flue dust CaO amount in the=blister copper CaO amount+slag
Matte CaO amount+input C flue dust CaO amount+X 1* lime CaO grade+X 2* silicic acid ore deposit CaO grade
=X 3* blister copper CaO grade+X 6+ X 7* output B flue dust CaO grade+X 8* output C flue dust CaO grade
7, the CaO/Fe balance in the slag
X 6=X 5* target CaO/Fe
8, output B fume amount
X 7=(matte amount+input C fume amount+X 1+ X 2) * flue dust incidence * (1-C dust rate)
9, output C fume amount
X 8=(matte amount+input C fume amount+X 1+ X 2) * flue dust incidence * C dust rate
10, the amount of other in flue gas balance
X 10=[(other amount of matte+other amount+X of input C flue dust 1* other grade+X of lime 2* other grade of silicic acid ore deposit)
-(matte O 2Amount+input C flue dust O 2Amount+silicic acid ore deposit O 2Amount)]
* (other coefficient of 1-)
Wherein: matte O 2Amount=Fe 3O 4O 2Amount+2FeO.SiO 2O 2Amount+Cu 2The O of O 2Amount
=matte Fe 3O 4Fe amount * K7+ matte 2FeO.SiO 2Fe amount * K14
+ matte Cu 2The Cu amount * K16 of O
Drop into C flue dust O 2Amount=Cu 2The O of O 2Amount+CuSO 4O 2Amount+Fe 3O 4O 2Amount
=input C flue dust Cu 2The Cu amount * K16 of O
+ [the Cu amount * K1 of the S amount-Cu2S of FCF C flue dust] * K17
+ FCF C flue dust Fe amount * K7
Silicic acid ore deposit O 2The Fe amount * K11 in amount=silicic acid ore deposit
11, O 2Balance
X 11=(blister copper O 2O in the amount+slag 2The O of amount+output C flue dust 2The O of amount+output B flue dust 2Amount)
-(matte O 2Amount+input C flue dust O 2Amount+silicic acid ore deposit O 2Amount)
Wherein: blister copper O 2Amount=Cu 2O amount+the Fe of O 3O 4O amount
=blister copper Cu 2Fe amount * K7 in the Cu amount * K16+ blister copper of O
O in the slag 2Amount=Cu 2The O of O 2The O of amount+CuO 2Amount+Fe 2O 3O 2Amount+Fe 3O 4O 2Amount+FeO X.CaO O 2
Amount+2FeO.SiO 2O 2Amount+CaSO 4O 2Amount
Cu in the=slag 2The Cu amount * K8 of CuO in the Cu amount * K16+ slag of O
Fe in the+slag 2O 3Fe amount * K11+ slag in Fe 3O 4Fe amount * K7
FeO in the+slag X.CaO Fe amount * K14
2FeO.SiO in the+slag 2Fe amount * K14
+ quantity of slag * P10*K12*K15
The O of output B flue dust 2Amount=Cu 2O amount+the Fe of O 3O 4O amount
=[the Cu amount of the Cu amount-Cu2S of FCF B flue dust] * K16
+ FCF B flue dust Fe amount * K7
All other O 2Amount is seen other amount balance in the flue gas.
Amount of oxygen calculates
1, theoretical amount of oxygen=(S amount * 22 in the flue gas.4/32。The O of 06+ input-output 2Amount * 22.4/32)*10 3Nm 3(100％O 2)
2, necessary amount of oxygen=theoretical amount of oxygen/reaction tower oxygen efficiency
Thermal equilibrium
Heat balance table
1, reaction tower thermal equilibrium
Figure G2008102383703D00161
2, settling tank thermal equilibrium
Figure G2008102383703D00162
Figure G2008102383703D00171
3, funnel uptake thermal equilibrium
Figure G2008102383703D00172
4, total-heat balance
Figure G2008102383703D00173
Heat calculation
Go into heat
1, the S combustion heat
The oxidation ratio * SO of S amount * reaction tower S in the=flue gas 2Generate heat
2, the generation heat of FeO
=(Fe in the Fe amount-slag of FeS in the Fe amount-slag in the slag 3O 4Fe amount) * FeO reaction heat
Wherein: the Fe amount of FeS
={ Cu amount-the Cu in the S amount * P30-[slag in the slag 2The Cu amount of the Cu amount-CuO of O
-metal Cu amount] * k1-quantity of slag * P10*K12}*P2
Fe 3O 4Fe amount=slag in Fe amount * P9
3, Fe 3O 4(contain CuSO 4, CaSO 4) generation heat
=Fe 3O 4Generate heat+CuSO 4Generate heat+CaSO 4Generate heat
Wherein:
● Fe 3O 4Generate heat=(Fe in the slag 3O 4Fe amount+output C flue dust Fe 3O 4Fe amount+output B flue dust Fe 3O 4Fe amount+blister copper Fe 3O 4Fe amount) * Fe 3O 4Reaction heat
Wherein: Fe in the slag 3O 4Fe amount=slag in Fe amount * P9
Output C flue dust Fe 3O 4Fe amount=output C flue dust Fe amount
B flue dust Fe 3O 4Fe amount=FCF B flue dust Fe amount
Blister copper Fe 3O 4Fe amount=blister copper in Fe amount
● CuSO 4Generate heat=output C flue dust CuSO 4Cu amount * CuSO 4Reaction heat
Wherein: CuSO 4Cu amount=(Cu of the Cu amount-C flue dust Cu2S of C flue dust measures
-C flue dust Cu 2The Cu amount of O)
● CaSO 4Generate CaSO in heat=slag 4Ca amount * CaSO 4Reaction heat
Wherein: CaSO in the slag 4CaO amount=quantity of slag * P10* (40.08+16)/(40.08+32.06+16*4)
4, decomposition heat
=-(Fe 3O 4Decomposition heat+input C flue dust CuSO 4Decomposition heat+FeS's is decomposition heat
+ Cu 2S becomes CuSO 4Decomposition heat+silicic acid ore deposit is decomposition heat+and lime is decomposition heat)
Wherein:
● Fe 3O 4Decomposition heat=(matte Fe 3O 4The Fe of Fe amount+input C flue dust 3O 4Fe amount) * Fe 3O 4Reaction heat
Wherein: matte Fe 3O 4Fe amount
Fe amount-matte the 2FeO.SiO of=matte Fe amount-matte FeS 2Fe amount
Drop into C flue dust Fe 3O 4Fe amount=input C flue dust Fe amount
● drop into C flue dust CuSO 4Decomposition heat=input C flue dust CuSO 4Cu amount * CuSO 4Reaction heat
● decomposition heat=[(Fe of the Fe amount+B flue dust of the Fe amount+output C flue dust amount in the Fe amount+slag of blister copper) of FeS
-(matte Fe 3O 4Fe amount+matte 2FeO.SiO 2Fe amount+input C flue dust Fe 3O 4
The Fe amount in Fe amount+silicic acid ore deposit) * FeS reaction heat
● Cu 2S becomes CuSO 4Decomposition heat=(the Cu amount of the Cu amount-input C flue dust of output C flue dust) * Cu 2S reaction heat
● the silicic acid ore deposit is decomposition heat=the Fe amount * Fe in silicic acid ore deposit 2O 3Reaction heat
● lime is decomposition heat=CaCO 3Amount * CaCO 3Reaction heat+MgCO 3Amount * MgCO 3Reaction heat
5, furnace charge sensible heat
[total Intake Quantity * furnace charge specific heat+(matte amount * matte moisture rate+amount of lime * lime moisture rate
Amount * silicic acid ore deposit ,+silicic acid ore deposit moisture rate)] * (charge-temperature-reference temperature)
6, slag making heat (settling tank)
2FeO.SiO in the=slag 2Fe amount * 2FeO.SiO 2Generate heat
FeO in the+slag X.CaO Fe amount * FeO X.CaO generate heat
7, reaction tower fuel combustion heat
=reaction tower amount of natural gas * calorific capacity of natural gas
8, reaction tower air-supply sensible heat
=(O 2Amount * O 2Units of heat+N 2Amount * N 2Units of heat+H 2O amount * H 2The O units of heat) * 10 -3
Mj/h
Wherein: units of heat is calculated general formula:
Units of heat=(a*T G+ b*T G 2* 10 -3+ C*T G -1* 10 3+ d) * 1/22.4*4.187
Kj/Nm 3
Coefficient table:
Composition a B C d
SO 2 10.38 1.27 1.42 -3683
N 2 6.66 0.51 0 -2030
?H 2O ?7.17 ?1.28 -0.08 -2223
T G: reaction tower wind pushing temperature+217.16 ° K
O 2Amount=reaction tower technology wind O 2Amount+reaction tower burning wind O 2Amount
Reaction tower technology wind O 2Amount=necessary ore amount of oxygen
Reaction tower burning wind O 2Amount=reaction tower burning air quantity * reaction tower burning wind oxygen concn
N 2Amount=reaction tower technology wind N 2Amount+reaction tower burning wind N 2Amount+reaction tower amount of natural gas * Sweet natural gas contains N 2Rate
Reaction tower technology wind N 2Amount=necessary ore amount of oxygen/technology wind oxygen-rich concentration * (1-technology wind oxygen-rich concentration)
Reaction tower burning wind N 2An amount=reaction tower burning air quantity (wet basis! ) * (1-reaction tower burning wind oxygen concn)
H 2O amount=reaction tower technology wind H 2O amount+reaction tower burning wind H 2The O amount
Reaction tower technology wind H 2O amount=reaction tower process air amount (butt) * (air moisture rate)
Reaction tower burning wind H 2O amount=reaction tower combustion air amount * reaction tower air moisture rate
9, the amount of the S in the settling tank S combustion heat=flue gas * (oxidation ratio of 1-reaction tower S) * SO 2Generate heat
10, settling tank combustion of natural gas heat=settling tank amount of natural gas * calorific capacity of natural gas
11, settling tank burning wind sensible heat=(O 2Amount * O 2Units of heat+N 2Amount * N 2Units of heat+H 2O amount * H 2The O units of heat) * 10 -3O 2Amount, N 2Amount, H 2O amount and units of heat thereof are referring to the 8th.
12, funnel uptake combustion of natural gas heat=funnel uptake amount of natural gas * calorific capacity of natural gas
13, funnel uptake burning wind sensible heat=(O 2Amount * O 2Units of heat+N 2Amount * N 2Units of heat+H 2O amount * H 2The O units of heat) * 10 -3O 2Amount, N 2Amount, H 2O amount and units of heat thereof are referring to the 8th.
14, go into heat seal meter=above-mentioned 1 ~ 13 sum
Go out heat
1, blister copper sensible heat=blister copper amount * blister copper units of heat
Blister copper units of heat=0.1766*T B+ 5.29-(0.0885+0.0005*T B) * blister copper grade * 100
T B: in reaction tower reaction tower gas temperature (° K)
In settling tank blister copper temperature (° K)
2, slag sensible heat
=quantity of slag * slag units of heat
Slag units of heat=0.3*T S-131.9
T S: in reaction tower reaction tower gas temperature (° K)
In settling tank blister copper temperature (° K)
3, obvious heat of smoke
=(SO 2Amount * SO 2Units of heat+O 2Amount * O 2Units of heat+NO 2Amount * NO 2Units of heat
+ CO 2Amount * CO 2Units of heat+H 2O amount * H 2The O units of heat) * 10 -3
Wherein: units of heat is calculated general formula:
Units of heat=(a*T G+ b*T G 2* 10 -3+ C*T G -1* 10 3+ d) * 1/22.4*4.187
Kj/Nm 3
Coefficient table:
Composition a B C d
SO 2 10.38 1.27 1.42 -3683
O 2 7.16 0.5 0.40 -2312
N 2 6.66 0.51 0 -2030
CO 2 10.55 1.08 2.04 -3926
H 2O 7.17 1.28 -0.08 -2223
T G: be reaction tower flue-gas temperature+217.16K ° during reaction tower thermal equilibrium
Be settling tank flue-gas temperature+217.16K ° during settling tank thermal equilibrium
Be funnel uptake flue-gas temperature+217.16K ° during funnel uptake thermal equilibrium
4, radiation heat loss=funnel uptake obvious heat of smoke * radiation loss rate
5, reaction tower flue dust sensible heat=(other amounts in output B fume amount+output C fume amount+flue gas) * flue dust units of heat
Flue dust units of heat=0.3*T G-131.9
T G: be reaction tower flue-gas temperature+217.16K ° during reaction tower thermal equilibrium
Be settling tank flue-gas temperature+217.16K ° during settling tank thermal equilibrium
Be funnel uptake flue-gas temperature+217.16K ° during funnel uptake thermal equilibrium
6, moisture evaporation heat=(matte amount * matte moisture rate+lime * lime moisture rate+* silicic acid ore deposit, silicic acid ore deposit moisture rate) * (the moisture evaporation heat+saturation water enthalpy-moisture enthalpy of packing into)
7, reaction tower heat radiation=set-point
8, settling tank heat radiation=set-point
9, funnel uptake heat radiation=set-point
10, go out heat seal meter=above-mentioned 1 ~ 9 sum
Smoke components calculates
1, reaction tower smoke components amount
● SO 2S amount * (22.4/32.06) * 10 in the amount=flue gas 3Nm 3/ h
● O 2Amount=reaction tower technology wind O 2Amount * (1-reaction tower technology wind oxygen efficiency)
+ reaction tower burning wind O 2Amount * (1-reaction tower burning wind oxygen efficiency)
Reaction tower technology wind O 2Amount=necessary ore amount of oxygen
Reaction tower burning wind O 2Amount=reaction tower burning air quantity * reaction tower burning wind oxygen concn
● N 2Amount=reaction tower technology wind N 2Amount+reaction tower burning wind N 2Amount
+ reaction tower amount of natural gas * Sweet natural gas contains N 2Rate
Reaction tower technology wind N 2Amount=necessary ore amount of oxygen/technology wind oxygen-rich concentration * (1-technology wind oxygen-rich concentration)
Reaction tower burning wind N 2An amount=reaction tower burning air quantity (wet basis! ) * (1-reaction tower burning wind oxygen concn)
● CO 2Amount=Sweet natural gas C grade * reaction tower amount of natural gas * 22.4/12+[lime CaO amount
* CaCO 3Ratio/56.08+ lime MgO amount * MgCO 3Ratio/40.32] * 22.4*10 3
+ reaction tower amount of natural gas * Sweet natural gas CO 2Ratio
● H 2O amount=reaction tower technology wind H 2O amount+reaction tower burning wind H 2O amount+furnace charge H 2O amount+Sweet natural gas H 2The O amount
Reaction tower technology wind H 2O amount=reaction tower process air amount (butt) * (air moisture rate)
Reaction tower burning wind H 2O amount=reaction tower combustion air amount * reaction tower air moisture rate
Furnace charge H 2O amount=[matte amount * matte moisture rate+amount of lime * lime moisture rate+silicic acid ore deposit amount
* silicic acid ore deposit moisture rate] * 22.4/18*10 3
Sweet natural gas H 2O amount=amount of natural gas * Sweet natural gas H grade * 22.4/2
2, settling tank smoke components amount
● settling tank SO 2Amount=reaction tower SO 2Amount
● settling tank O 2Amount=reaction tower O 2Amount+settling tank burning wind O 2Amount * (1-settling tank oxygen efficiency)
Settling tank burning wind O 2Amount=settling tank burning air quantity * settling tank burning wind oxygen concn
● settling tank N 2Amount=reaction tower N 2Amount+settling tank burning wind N 2Amount
+ settling tank amount of natural gas * Sweet natural gas contains N 2Rate
Settling tank burning wind N 2An amount=settling tank burning air quantity (wet basis! ) * (1-settling tank burning wind oxygen concn)
● settling tank CO 2Amount=reaction tower CO 2Amount+Sweet natural gas C grade * settling tank amount of natural gas * 22.4/12
+ settling tank amount of natural gas * Sweet natural gas CO 2Ratio
● settling tank H 2O amount=reaction tower H 2O amount+settling tank burning wind H 2O amount+settling tank Sweet natural gas H 2The O amount
Settling tank burning wind H 2O amount=settling tank combustion air amount * settling tank air moisture rate
Settling tank Sweet natural gas H 2O amount=settling tank amount of natural gas * Sweet natural gas H grade * 22.4/2
3, funnel uptake smoke components amount
● funnel uptake SO 2Amount=settling tank SO 2Amount
● funnel uptake O 2Amount=settling tank O 2Amount+funnel uptake burning wind O 2Amount * (1-funnel uptake oxygen efficiency)
Funnel uptake burning wind O 2Amount=funnel uptake burning air quantity * funnel uptake burning wind oxygen concn
● funnel uptake N 2Amount=settling tank N 2Amount+funnel uptake burning wind N 2Amount
+ funnel uptake amount of natural gas * Sweet natural gas contains N 2Rate
Funnel uptake burning wind N 2An amount=funnel uptake burning air quantity (wet basis! )
* (1-funnel uptake burning wind oxygen concn)
● funnel uptake CO 2Amount=settling tank CO 2Amount+Sweet natural gas C grade * funnel uptake amount of natural gas * 22.4/12
+ funnel uptake amount of natural gas * Sweet natural gas CO 2Ratio
● funnel uptake H 2O amount=settling tank H 2O amount+funnel uptake burning wind H 2The O amount
+ funnel uptake Sweet natural gas H 2The O amount
Funnel uptake burning wind H 2O amount=funnel uptake combustion air amount * funnel uptake air moisture rate
Settling tank Sweet natural gas H 2O amount=settling tank amount of natural gas * Sweet natural gas H grade * 22.4/2
In order further to realize purpose of the present invention, can also be by the following technical solutions: the technology wind of reaction tower be process air and industrial preparation oxygen blended normal temperature oxygen rich gas, and the enrichment rate can reach 80%.Its blending process is to finish in converting furnace furnace roof portion, the converting furnace furnace roof has been installed matte, flue dust, lime and quartz sand batch bin respectively, each material all is furnished with independently measuring apparatus, furnace charge behind the metering feed enters two buried scraper conveyors, is sent into the nozzle of flash converting furnace again by buried scraper conveyor.
Beneficial effect of the present invention is: it can accurately calculate each target component by the mathematical model of special use, can overcome in the original production process, the complete defective of estimating target component production by operator by rule of thumb, can significantly reduce the substandard products production rate, enhance productivity the work-ing life of prolongation production unit, and have advantages of saving energy and reducing emission.
Description of drawings
Fig. 1 is the reaction process synoptic diagram in the settling tank of the present invention, and chemical equation is expressed as:
Cu 2S+2Cu 2O＝6Cu+SO 2 Cu 2S+2CuO＝4Cu+SO 2 Cu 2S+2Fe 2O 3＝4FeO+SO 2
Embodiment
Illustrate a kind of blister copper blowing technology that instructs based on mathematical model of the present invention, concrete operations and calculation procedure are as follows:
1,, organize working condition just like next according to production requirement:
A, productive target
Target component Value Unit
Slag SiO2 grade 2.5 ％
Slag CaO/Fe 0.33 --
The slag temperature 1270 ℃
Blister copper S grade 0.16 ％
Fe3O4 ratio in the slag 30 ％
B, working condition:
Parameter Value Unit
The matte amount 35 t/h
The C fume amount 2 t/h
The reaction tower amount of natural gas 400 Nm 3
Reaction tower burning air quantity 2424 Nm 3
Reaction tower burning wind oxygen concn 35 ％
The industry oxygen concn 99 ％
The air moisture rate 1 ％
Settling tank burning air quantity 1522.77 Nm 3
The settling tank amount of natural gas 500 Nm 3
C, go into the stove material:
Figure G2008102383703D00221
Figure G2008102383703D00231
2,,, can obtain following system of linear equations according to model metal balance equation according to productive target and condition:
X1+X2-X3-X4-X7-X8-X9-X10+X11＝-37.0000
-0.9911X3-0.2000X4-0.4098X7-0.4098X8＝-25.2706
0.0050X1+0.0200X2-0.0007X3-X5-0.0392X7-0.0392X8＝-2.3394
-0.0016X3-0.0025X4-0.1693X7-0.1693X8-X9＝-7.5381
0.0100X1+0.8500X2-0.0250X4-0.0200X7-0.0100X8＝-0.0625
0.9500X1+0.0200X2-X6-0.0060X7-0.0060X8＝-0.0155
0.3300X5-X6＝0.0000
-0.0427X1-0.0427X2+X7＝1.5818
-0.0522X1-0.0522X2+X8＝1.9333
0.0250X1+0.0914X2-10.0000X10＝-0.7717
0.0086X2-0.0022X3-0.0456X4-0.3151X5-0.1559X7-0.5320X8+X11＝1.0018
Find the solution: X1=0.7637 (amount of lime that needs adding)
X2=0.1505 (measure in the silicic acid ore deposit that needs to add)
X3=22.8320 (output blister copper amount)
X4=5.8326 (the output quantity of slag)
X5=2.1891 (Fe amount in the slag)
X6=0.7224 (CaO amount in the slag)
X7=1.6208 (the boiler smoke amount of output)
X8=1.9810 (electricity of output gather dust fume amount)
X9=6.8772 (the S amount in the flue gas)
X10=0.0805 (other amounts in the flue gas)
X11=1.3100 (the oxygen amount that needs adding)
Wherein: X1=0.7637 (amount of lime that needs adding)
X2=0.1505 (measure in the silicic acid ore deposit that needs to add)
Be directly used in technological operation.
2, calculate necessary amount of oxygen (Nm 3) necessary amount of oxygen=5770.7095 (100%O 2)
4, calculate heat and ask oxygen concentration
Figure G2008102383703D00232
Figure G2008102383703D00241
Try to achieve: under specified criteria, oxygen concentration x=0.7897
5, according to processing requirement, calculate output parameter, technology will be operated by this:
no name unit val
1 Amount of lime t/h 0.7637
2 Silicic acid ore deposit amount t/h 0.1505
3 Reaction tower oxygen/matte (with respect to matte) Nm3-O2/t-M 164.877
4 Reaction tower oxygen/material (with respect to total furnace charge) The Nm3-O2/t-furnace charge 152.205
5 Reaction tower technology wind oxygen concentration ％ 78.9729
6 Reaction tower technology oxygen amount (99%O 2) Nm3/h 5430
7 Reaction tower process air amount (natural air) Nm3/h 1890
8 Oxygen amount (the 99%O of reaction tower nozzle central authorities 2) Nm3/h 380
9 Reaction tower distributes air quantity (natural air) Nm3/h 700
10 Reaction tower send the oxygen amount Nm3/h 5050
11 Reaction tower is sent into air capacity Nm3/h 1190
Industrial preparation oxygen of the present invention is meant the oxygen of being produced by oxygen generating plant.Its oxygen concn depends on system oxygen technology, and the oxygen concentration of the system oxygen technology output of deep refrigeration is high more, stable more.
Reaction tower technology wind of the present invention is the industrial preparation oxygen that needs in the furnace charge reaction process and the mixed gas of natural air.
Reaction tower technology oxygen amount of the present invention is the industrial preparation oxygen that needs in the furnace charge reaction process, is 99% at auspicious smooth copper industry oxygenerator output oxygen oxygen concn.Oxygen concn allows to change in model.Normal temperature of the present invention is meant 18-26 ℃, is often referred to 25 ℃.
Technology wind of the present invention is the natural air that needs in the furnace charge reaction process, contains 21%O 2, 79%N 2, according to atmospheric moisture, add moisture, calculate by 1% moisture rate in the model.
Technical solutions according to the invention are not restricted in the scope of embodiment of the present invention.The present invention not technology contents of detailed description is known technology.

Claims (3)

1. blister copper blowing technology that instructs based on mathematical model is characterized in that: may further comprise the steps:
1. insert the matte nozzle of flash converting furnace after earlier matte, flue dust, lime and quartz sand being mixed, again furnace charge with being inserted the reaction tower of converting furnace by nozzle in, is finished technology wind the blowing reaction rapidly, the oxygen gesture of reaction tower region intermediate for a change, utilize the central oxygen rifle of installing in the reaction tower to be blown into oxygen, and in reaction tower, feed pressurized air, improve the distribution situation of furnace charge in reaction tower by compressed-air actuated air-flow; The degree of oxidation in the stove and the temperature of output object are controlled by the oxygen concn of oxygen/material ratio and technology wind respectively, when furnace heat is not enough, chew additional heat by the burning of the Sweet natural gas around the matte nozzle, under the situation of heat surplus, then add flue dust and regulate the interior thermal balance state of stove;
2. the melt of going up step reaction generation is separated into blister copper and slag in settling tank, the blister copper of output regularly enters anode furnace by chute and carries out refining, the blowing slag returns flash smelting furnace and continues melting after the levigate dehydration of shrend, the flue gas of converting furnace send acid making system relieving haperacidity after waste heat boiler and electricity gather dust, flue gas returns flash smelting through flue dust and the electric flue dust that gathers dust that waste heat boiler settles down behind crushing and screening, other flue dust that electricity gathers dust then return converting furnace and make cold burden;
3. according to metallurgy about pyrometallurgical processes chemical equilibrium and thermodynamic equilibrium theory in closed environment, set up flash stove blister copper based on metal balance and the thermal equilibrium mathematical model that blows; Set up 11 yuan of systems of linear equations by metal balance, to ask for the needed oxygen amount of material chemical reaction in stove when the blister copper sulfur-bearing reaches target value, Z 250, the calcium amount when the silicon grade reaches target value and silicon amount in the slag; Thermal equilibrium is oxygen concentration or the amount of natural gas when asking for the slag temperature and reaching target value, and model can be oxygen concentration as unknown number, also can be with amount of natural gas as unknown number;
Utilize this mathematical model, can accurately calculate the optimal operation parameter of needs according to given target component and working condition, make the crucial controlling index of blister copper blowing technology process: Z 250, slag temperature keep stability in blister copper sulphur grade, the slag, parameter by gained is produced, and concrete relevant form and the calculation formula of calculating is as follows:
One, metal balance
(1), metal balance table
Require and the input-output condition according to control, be constructed as follows the metal balance table
Figure FSB00000476826400011
Figure FSB00000476826400021
Remarks: G in the table: set-point C: calculate X before solving an equation n: the unknown number blank: calculate the back of solving an equation
--: do not calculate
(2), metal balance equation
According to the metal balance principle, with the unknown quantity in the metal balance table, be configured to 11 yuan of systems of linear equations, separate this system of equations, can try to achieve to reaching the operating value of the required oxygen quotient of blister copper blowing target component, amount of lime, silicic acid ore deposit amount, concrete equation is as follows:
1, material balance
Matte amount+input C fume amount+amount of lime+silicic acid ore deposit amount+O amount
Other amount matte amount+input C fume amount+X in the S amount+flue gas in=blister copper amount+quantity of slag+output B fume amount+output C fume amount+flue gas 1+ X 2+ X 11
＝X 3+X 4+X 7+X 8+X 9+X 10
2, Cu balance
Matte Cu amount+input C flue dust Cu amount+lime Cu amount+silicic acid ore deposit Cu amount
Cu amount+output B flue dust Cu amount+output C flue dust Cu amount matte Cu amount+input C flue dust Cu amount+X in the=blister copper Cu amount+slag 1* lime Cu grade+X 2* silicic acid ore deposit Cu grade
=X 3* blister copper Cu grade+X 4* the Cu grade+X in the slag 7* output B flue dust Cu grade+X 8* output C flue dust Cu grade
3, Fe balance
Matte Fe amount+input C flue dust Fe amount+lime Fe amount+silicic acid ore deposit Fe amount
Fe amount+output B flue dust Fe amount+output C flue dust Fe amount matte Fe amount+input C flue dust Fe amount+X in the=blister copper Fe amount+slag 1* lime Fe grade+X 2* silicic acid ore deposit Fe grade
=X 3* blister copper Fe grade+X 5+ X 7* output B flue dust Fe grade+X 8* output C flue dust Fe grade
4, S balance
Matte S amount+input C flue dust S amount+lime S amount+silicic acid ore deposit S amount
S amount matte S amount+input C flue dust S amount+X in the S amount+output B flue dust S amount+output C flue dust S amount+flue gas in the=blister copper S amount+slag 1* lime S grade+X 2* silicic acid ore deposit S grade
=X 3* blister copper S grade+X 4* the S grade+X in the slag 7* output B flue dust S grade+X 8* output C flue dust S grade+X 9
5, SiO 2Balance
Matte SiO2 amount+input C flue dust SiO2 amount+lime SiO2 amount+silicic acid ore deposit SiO2 amount
SiO2 amount+output B flue dust SiO2 amount+output C flue dust SiO2 amount matte SiO2 amount+input C flue dust SiO2 amount+X in the=blister copper SiO2 amount+slag 1* lime SiO2 grade+X 2* silicic acid ore deposit SiO2 grade
=X 3* blister copper SiO2 grade+X 4* the SiO in the slag 2Grade+X 7* output B flue dust SiO2 grade+X 8* output C flue dust SiO2 grade
6, CaO balance
Matte CaO amount+input C flue dust CaO amount+lime CaO amount+silicic acid ore deposit CaO amount
CaO amount+output B flue dust CaO amount+output C flue dust CaO amount matte CaO amount+input C flue dust CaO amount+X in the=blister copper CaO amount+slag 1* lime CaO grade+X 2* silicic acid ore deposit CaO grade
=X 3* blister copper CaO grade+X 6+ X 7* output B flue dust CaO grade+X 8* output C flue dust CaO grade
7, the CaO/Fe balance in the slag
X 6=X 5* target CaO/Fe
8, output B fume amount
X 7=(matte amount+input C fume amount+X 1+ X 2) * flue dust incidence * (1-C dust rate)
9, output C fume amount
X 8=(matte amount+input C fume amount+X 1+ X 2) * flue dust incidence * C dust rate
10, the amount of other in flue gas balance
X 10=[(other amount of matte+other amount+X of input C flue dust 1* other grade+X of lime 2* other grade of silicic acid ore deposit)-(matte O 2Amount+input C flue dust O 2Amount+silicic acid ore deposit O 2Amount)]
* (other coefficient of 1-)
Wherein: matte O 2Amount=Fe 3O 4O 2Amount+2FeO.SiO 2O 2Amount+Cu 2The O of O 2Amount
=matte Fe 3O 4Fe amount * K7+ matte 2FeO.SiO 2Fe amount * K14+ matte Cu 2The Cu amount * K16 of O
Drop into C flue dust O 2Amount=Cu 2The O of O 2Amount+CuSO 4O 2Amount+Fe 3O 4O 2Amount
=input C flue dust Cu 2The Cu amount * K1 of the S amount-Cu2S of the Cu amount * K16+[FCF C flue dust of O] * K17+FCF C flue dust Fe amount * K7
Silicic acid ore deposit O 2The Fe amount * K11 in amount=silicic acid ore deposit
11, O 2Balance
X 11=(blister copper O 2O in the amount+slag 2The O of amount+output C flue dust 2The O of amount+output B flue dust 2Amount)-(matte O 2Amount+input C flue dust O 2Amount+silicic acid ore deposit O 2Amount)
Wherein: blister copper O 2Amount=Cu 2O amount+the Fe of O 3O 4O amount
=blister copper Cu 2Fe amount * K7 in the Cu amount * K16+ blister copper of O
O in the slag 2Amount=Cu 2The O of O 2The O of amount+CuO 2Amount+Fe 2O 3O 2Amount+Fe 3O 4O 2Amount+FeO X.CaO O 2Amount+2FeO.SiO 2O 2Amount+CaSO 4O 2Amount
Cu in the=slag 2Fe in the Cu amount * K8+ slag of CuO in the Cu amount * K16+ slag of O 2O 3Fe amount * K11+ slag in Fe 3O 4Fe amount * K7+ slag in FeO X.CaO the 2FeO.SiO in the Fe amount * K14+ slag 2Fe amount * K14+ quantity of slag * P10*K12*K15
The O of output B flue dust 2Amount=Cu 2O amount+the Fe of O 3O 4O amount
=[the Cu amount of the Cu amount-Cu2S of FCF B flue dust] * K16+FCF B flue dust Fe amount * K7
All other O 2Amount is seen other amount balance in the flue gas,
Computational constant
Figure FSB00000476826400031
Figure FSB00000476826400041
(3) amount of oxygen calculates
1, theoretical amount of oxygen=(O of the S amount * 22.4/32.06+ input-output in the flue gas 2Amount * 22.4/32) * 10 3Nm 3, 100%O 2
2, necessary amount of oxygen=theoretical amount of oxygen/reaction tower oxygen efficiency;
Two, thermal equilibrium
(1) heat balance table
1, reaction tower thermal equilibrium
Figure FSB00000476826400042
2, settling tank thermal equilibrium
Figure FSB00000476826400043
Figure FSB00000476826400051
3, funnel uptake thermal equilibrium
Figure FSB00000476826400052
4, total-heat balance
Figure FSB00000476826400053
(2) heat calculation
A, go into heat
1, the oxidation ratio * SO of the amount of the S in the S combustion heat=flue gas * reaction tower S 2Generate heat
2, the generation heat of FeO=(Fe in the Fe amount-slag of FeS in the Fe amount-slag in the slag 3O 4Fe amount) * FeO reaction heat
Wherein: the Fe amount of the FeS={ Cu amount-Cu in the S amount * P30-[slag in the slag 2Cu amount-metal Cu the amount of the Cu amount-CuO of O] * k1-quantity of slag * P10*K12}*P2
Fe 3O 4Fe amount=slag in Fe amount * P9
3, Fe 3O 4Contain CuSO 4, CaSO 4Generate heat=Fe 3O 4Generate heat+CuSO 4Generate heat+CaSO 4Generate heat
Wherein:
Fe 3O 4Generate heat=(Fe in the slag 3O 4Fe amount+output C flue dust Fe 3O 4Fe amount+output B flue dust Fe 3O 4Fe amount+blister copper Fe 3O 4Fe amount) * Fe 3O 4Reaction heat
Wherein: Fe in the slag 3O 4Fe amount=slag in Fe amount * P9
Output C flue dust Fe 3O 4Fe amount=output C flue dust Fe amount
B flue dust Fe 3O 4Fe amount=FCF B flue dust Fe amount
Blister copper Fe 3O 4Fe amount=blister copper in Fe amount
CuSO 4Generate heat=output C flue dust CuSO 4Cu amount * CuSO 4Reaction heat
Wherein: CuSO 4The Cu amount=(Cu amount-C flue dust Cu of the Cu amount-C flue dust Cu2S of C flue dust 2The Cu amount of O)
CaSO 4Generate CaSO in heat=slag 4Ca amount * CaSO 4Reaction heat
Wherein: CaSO in the slag 4CaO amount=quantity of slag * P10* (40.08+16)/(40.08+32.06+16*4)
4, decomposition heat=-(Fe 3O 4Decomposition heat+input C flue dust CuSO 4Decomposition heat+Cu of decomposition heat+FeS 2S becomes CuSO 4Decomposition heat+silicic acid ore deposit is decomposition heat+and lime is decomposition heat)
Wherein:
Fe 3O 4Decomposition heat=(matte Fe 3O 4The Fe of Fe amount+input C flue dust 3O 4Fe amount) * Fe 3O 4Reaction heat
Wherein: matte Fe 3O 4Fe amount
Fe amount-matte the 2FeO.SiO of=matte Fe amount-matte FeS 2Fe amount drop into C flue dust Fe 3O 4Fe amount=input C flue dust Fe amount
Drop into C flue dust CuSO 4Decomposition heat=input C flue dust CuSO 4Cu amount * CuSO 4Reaction heat
Decomposition heat=[(Fe of the Fe amount+B flue dust of Fe amount+output C flue dust amount in the Fe amount+slag of blister copper)-(matte Fe of FeS 3O 4Fe amount+matte 2FeO.SiO 2Fe amount+input C flue dust Fe 3O 4The Fe amount in Fe amount+silicic acid ore deposit)] * FeS reaction heat
Cu 2S becomes CuSO 4Decomposition heat=(the Cu amount of the Cu amount-input C flue dust of output C flue dust) * Cu 2S reaction heat
The silicic acid ore deposit is decomposition heat=the Fe amount * Fe in silicic acid ore deposit 2O 3Reaction heat
Lime is decomposition heat=CaCO 3Amount * CaCO 3Reaction heat+MgCO 3Amount * MgCO 3Reaction heat
5, furnace charge sensible heat
[total Intake Quantity * furnace charge specific heat+(matte amount * matte moisture rate+amount of lime * lime moisture rate+amount * silicic acid ore deposit, silicic acid ore deposit moisture rate)] * (charge-temperature-reference temperature)
6,2FeO.SiO in settling tank slag making heat=slag 2Fe amount * 2FeO.SiO 2Generate FeO in heat+slag X.CaO Fe amount * FeO X.CaO generate heat
7, reaction tower fuel combustion heat=reaction tower amount of natural gas * calorific capacity of natural gas
8, reaction tower air-supply sensible heat=(O 2Amount * O 2Units of heat+N 2Amount * N 2Units of heat+H 2O amount * H 2The O units of heat) * 10 -3Mj/h
Wherein: units of heat is calculated general formula:
Units of heat=(a*T G+ b*T G 2* 10 -3+ c*T G -1* 10 3+ d) * 1/22.4*4.187Kj/Nm 3
Coefficient table:
Composition a b c d SO 2 10.38 1.27 1.42 -3683 N 2 6.66 0.51 0 -2030 H 2O 7.17 1.28 -0.08 -2223
T G: reaction tower wind pushing temperature+217.16K
O 2Amount=reaction tower technology wind O 2Amount+reaction tower burning wind O 2Amount
Reaction tower technology wind O 2Amount=necessary ore amount of oxygen
Reaction tower burning wind O 2Amount=reaction tower burning air quantity * reaction tower burning wind oxygen concn
N 2Amount=reaction tower technology wind N 2Amount+reaction tower burning wind N 2Amount+reaction tower amount of natural gas * Sweet natural gas contains N 2Rate
Reaction tower technology wind N 2Amount=necessary ore amount of oxygen/technology wind oxygen-rich concentration * (1-technology wind oxygen-rich concentration)
Reaction tower burning wind N 2Amount=reaction tower burning air quantity wet basis * (1-reaction tower burning wind oxygen concn)
H 2O amount=reaction tower technology wind H 2O amount+reaction tower burning wind H 2The O amount
Reaction tower technology wind H 2O amount=reaction tower process air amount butt * (air moisture rate)
Reaction tower burning wind H 2O amount=reaction tower combustion air amount * reaction tower air moisture rate
9, the amount of the S in the settling tank S combustion heat=flue gas * (oxidation ratio of 1-reaction tower S) * SO 2Generate heat
10, settling tank combustion of natural gas heat=settling tank amount of natural gas * calorific capacity of natural gas
11, settling tank burning wind sensible heat=(O 2Amount * O 2Units of heat+N 2Amount * N 2Units of heat+H 2O amount * H 2The O units of heat) * 1O -3O 2Amount, N 2Amount, H 2O amount and units of heat thereof be referring to the 8th,
12, funnel uptake combustion of natural gas heat=funnel uptake amount of natural gas * calorific capacity of natural gas
13, funnel uptake burning wind sensible heat=(O 2Amount * O 2Units of heat+N 2Amount * N 2Units of heat+H 2O amount * H 2The O units of heat) * 1O -3
O 2Amount, N 2Amount, H 2O amount and units of heat thereof be referring to the 8th,
14, go into heat seal meter=above-mentioned 1～13 sum
Constant, coefficient
Figure FSB00000476826400071
Figure FSB00000476826400081
B, go out heat
1, blister copper sensible heat=blister copper amount * blister copper units of heat
Blister copper units of heat=0.1766*T B+ 5.29-(0.0885+0.0005*T B) * blister copper grade * 100
T B: in reaction tower reaction tower gas temperature K
In settling tank blister copper temperature K
2, slag sensible heat=quantity of slag * slag units of heat
Slag units of heat=0.3*T S-131.9
T S: in reaction tower reaction tower gas temperature K
In settling tank blister copper temperature K
3, obvious heat of smoke=(SO 2Amount * SO 2Units of heat+O 2Amount * O 2Units of heat+NO 2Amount * NO 2Units of heat+CO 2Amount * CO 2Units of heat+H 2O amount * H 2The O units of heat) * 10 -3
Wherein: units of heat is calculated general formula:
Units of heat=(a*T G+ b*T G 2* 10 -3+ C*T G -1* 10 3+ d) * 1/22.4*4.187Kj/Nm 3
Coefficient table:
Composition a b C d SO 2 10.38 1.27 1.42 -3683 O 2 7.16 0.5 0.40 -2312 N 2 6.66 0.51 0 -2030 CO 2 10.55 1.08 2.04 -3926 H 2O 7.17 1.28 -0.08 -2223
T G: during reaction tower thermal equilibrium reaction tower flue-gas temperature+217.16K
During settling tank thermal equilibrium settling tank flue-gas temperature+217.16K
During funnel uptake thermal equilibrium funnel uptake flue-gas temperature+217.16K
4, radiation heat loss=funnel uptake obvious heat of smoke * radiation loss rate
5, reaction tower flue dust sensible heat=(other amounts in output B fume amount+output C fume amount+flue gas) * flue dust units of heat flue dust units of heat=0.3*T G-131.9
T G: during reaction tower thermal equilibrium reaction tower flue-gas temperature+217.16K
During settling tank thermal equilibrium settling tank flue-gas temperature+217.16K
During funnel uptake thermal equilibrium funnel uptake flue-gas temperature+217.16K
6, moisture evaporation heat=(matte amount * matte moisture rate+lime * lime moisture rate+* silicic acid ore deposit, silicic acid ore deposit moisture rate) * (the moisture evaporation heat+saturation water enthalpy-moisture enthalpy of packing into)
7, reaction tower heat radiation=set-point
8, settling tank heat radiation=set-point
9, funnel uptake heat radiation=set-point
10, go out heat seal meter=above-mentioned 1～9 sum
C, smoke components calculate
1, reaction tower smoke components amount
SO 2S amount * (22.4/32.06) * 10 in the amount=flue gas 3Nm 3/ h
O 2Amount=reaction tower technology wind O 2Amount * (1-reaction tower technology wind oxygen efficiency)+reaction tower burning wind O 2Amount * (1-reaction tower burning wind oxygen efficiency)
Reaction tower technology wind O 2Amount=necessary ore amount of oxygen
Reaction tower burning wind O 2Amount=reaction tower burning air quantity * reaction tower burning wind oxygen concn
N 2Amount=reaction tower technology wind N 2Amount+reaction tower burning wind N 2Amount+reaction tower amount of natural gas * Sweet natural gas contains N 2Rate
Reaction tower technology wind N 2Amount=necessary ore amount of oxygen/technology wind oxygen-rich concentration * (1-technology wind oxygen-rich concentration)
Reaction tower burning wind N 2Amount=reaction tower burning air quantity wet basis * (1-reaction tower burning wind oxygen concn)
CO 2Amount=Sweet natural gas C grade * reaction tower amount of natural gas * 22.4/12+[lime CaO amount * CaCO 3Ratio/56.08+ lime MgO amount * MgCO 3Ratio/40.32] * 22.4*10 3+ reaction tower amount of natural gas * Sweet natural gas CO 2Ratio
H 2O amount=reaction tower technology wind H 2O amount+reaction tower burning wind H 2O amount+furnace charge H 2O amount+Sweet natural gas H 2The O amount
Reaction tower technology wind H 2O amount=reaction tower process air amount butt * air moisture rate
Reaction tower burning wind H 2O amount=reaction tower combustion air amount * reaction tower air moisture rate
Furnace charge H 2O amount=[matte amount * matte moisture rate+amount of lime * lime moisture rate+amount * silicic acid ore deposit, silicic acid ore deposit moisture rate] * 22.4/18*10 3
Sweet natural gas H 2O amount=amount of natural gas * Sweet natural gas H grade * 22.4/2
2, settling tank smoke components amount
Settling tank SO 2Amount=reaction tower SO 2Amount
Settling tank O 2Amount=reaction tower O 2Amount+settling tank burning wind O 2Amount * (1-settling tank oxygen efficiency) settling tank burning wind O 2Amount=settling tank burning air quantity * settling tank burning wind oxygen concn
Settling tank N 2Amount=reaction tower N 2Amount+settling tank burning wind N 2Amount+settling tank amount of natural gas * Sweet natural gas contains N 2Rate
Settling tank burning wind N 2Amount=settling tank burning air quantity wet basis * (1-settling tank burning wind oxygen concn)
Settling tank CO 2Amount=reaction tower CO 2Amount+Sweet natural gas C grade * settling tank amount of natural gas * 22.4/12+ settling tank amount of natural gas * Sweet natural gas CO 2Ratio
Settling tank H 2O amount=reaction tower H 2O amount+settling tank burning wind H 2O amount+settling tank Sweet natural gas H 2O amount settling tank burning wind H 2O amount=settling tank combustion air amount * settling tank air moisture rate settling tank Sweet natural gas H 2O amount=settling tank amount of natural gas * Sweet natural gas H grade * 22.4/2
3, funnel uptake smoke components amount
Funnel uptake SO 2Amount=settling tank SO 2Amount
Funnel uptake O 2Amount=settling tank O 2Amount+funnel uptake burning wind O 2Amount * (1-funnel uptake oxygen efficiency) funnel uptake burning wind O 2Amount=funnel uptake burning air quantity * funnel uptake burning wind oxygen concn
Funnel uptake N 2Amount=settling tank N 2Amount+funnel uptake burning wind N 2Amount+funnel uptake amount of natural gas * Sweet natural gas contains N 2Rate
Funnel uptake burning wind N 2Amount=funnel uptake burning air quantity wet basis * (1-funnel uptake burning wind oxygen concn)
Funnel uptake CO 2Amount=settling tank CO 2Amount+Sweet natural gas C grade * funnel uptake amount of natural gas * 22.4/12+ funnel uptake amount of natural gas * Sweet natural gas CO 2Ratio
Funnel uptake H 2O amount=settling tank H 2O amount+funnel uptake burning wind H 2O amount+funnel uptake Sweet natural gas H 2The O amount
Funnel uptake burning wind H 2O amount=funnel uptake combustion air amount * funnel uptake air moisture rate settling tank Sweet natural gas H 2O amount=settling tank amount of natural gas * Sweet natural gas H grade * 22.4/2.
2. a kind of blister copper blowing technology that instructs based on mathematical model according to claim 1, it is characterized in that: the technology wind of reaction tower is process air and industrial preparation oxygen blended normal temperature oxygen rich gas, and the enrichment rate reaches 80%.
3. a kind of blister copper blowing technology that instructs based on mathematical model according to claim 1, it is characterized in that: its blending process is to finish in converting furnace furnace roof portion, the converting furnace furnace roof has been installed matte, flue dust, lime and quartz sand batch bin respectively, each material all is furnished with independently measuring apparatus, furnace charge behind the metering feed enters two buried scraper conveyors, is sent into the nozzle of flash converting furnace again by buried scraper conveyor.
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