SU1534057A1 - Arrangement for correcting coke mass - Google Patents

Abstract

The invention can be used to build coke batch control systems for blast furnaces. The aim of the invention is to improve the accuracy of the correction of the mass of coke. The invention consists in calculating the adjustment of the technologist's task to the mass of coke necessary to compensate for the change in its humidity, adjusting the coefficient of change in the moisture of coke to changes in the mass of coke doses for channels of moisture conversion and the mass of coke to changes in the thermal state of a blast furnace, for example, silicon content in the iron, by eliminating changes in the silicon content due to changes in the humidity of the blowing and the iron content in the agglomerate. 1 il.

Description

The invention relates to ferrous metallurgy, in particular, to the production of pig iron in blast furnaces, more specifically to devices for automatically correcting the mass of coke when feeding materials to the blast furnace.

The aim of the invention is to improve the accuracy of the correction of the mass of coke.

The drawing shows a structural diagram of the proposed device

The device for correction of coke mass contains first and second meters 1 and 2 of coke moisture, first and second meters 3, 4 coke masses, switch 5 consisting of first 6, third 7, second 8, fourth 9 keys, first and second adders 10 and 11, the adjusting adjuster 12, consisting of the sixth and fifth keys 13 and 14, the fourth 15 and third 16 comparison units, the third setter 17, the third multiplication unit 18, the second nonlinear

smoother 19, quadoatoa 20, fourth nonlinear smoother 21, first delay unit 22, third nonlinear smoother 23, division unit 24, storage unit 25, second delay unit 26, second comparison unit 27, first scaling unit 28, correction unit 29 moisture blowing, consisting of the fifth comparison unit 30, the fourth master 31, the second scaling block 32,

SP

with

ate

a fifth adder 33, a third scaling unit 34, a third delay unit 35, a fourth delay unit 36, and a seventh key 37, a correction unit 38 for variations in the iron content in the sinter, consisting of the fifth setting unit 39, the sixth comparison unit 40, the fourth 4 and an additional 42 scaling units, a sixth adder 43, a sixth delay unit 44, a fifth delay unit 45 and an eighth key 46, a first setting unit 47, a first comparison unit 48, a first 49 and a second 50 multiplying units, a first nonlinear smoother 51, the second setter 52, third 53 and 54 of the fourth adders.

In the drawing, WK - the signal of the measured value of coke moisture is indicated; G - signal of the measured value of the mass dose of coke; Si is the signal of the measured silicon content in the iron; WK, G, w, signals about the technologically specified coke moisture values, coke mass, blow humidity and iron content in the sinter; Si is the reference signal for the silicon content in the iron; W, is the signal of the measured humidity of blowing; Few-signal of the measured value of the iron content in the agglomerate; G is the adjusted target for the mass of coke dose; I, 1 signals about the end of the set of the next batch of coke, respectively, in the first and second weighing funnels I- - signal about the completion of the measurement of silicon content in the iron at the next release.

The first and second coke moisture meters 1 and 2 are neutron moisture meters.

The first 3 and second 4 coke mass meters are dikepet-based weighing devices with a strain gauge transducer.

The first 6, the second 8, the third 7, the fourth 9, the fifth 14, the sixth 13, the seventh 37, and the eighth 46 kg kg are the closing keys.

The second 19, third 23, fourth 21 and first 5 nonlinear smoothers are made in the form of a series-connected comparison unit, a saturation amplifier, an integrator and a delay unit connected by its output to the second input of the comparison unit, the first input of which is an input

nonlinear smoother, the output of which is the integrator output. In this case, a saturation amplifier is an amplifier with a limited output voltage amplitude. The tuning parameters of the amplifier are the gain O-Wstl and the absolute value of the limitation p. The smoother delay unit, like the first 22, and the second 26, and the third 35, and the fourth 36 delay blocks, provides a delay for the time Ј and is, for example, delay blocks. Thus, the nonlinear smoother has three tuning parameters a (, / 3 and T, the numerical values of which are determined for each particular case of application of the smoother depending on the purpose of its use and the static properties of the processed signals.

Quad 20 is implemented as, for example, a multiplication unit, the first and second inputs of which are interconnected and connected to the quad input, and the output of the multiplication unit is the quad output.

The memory unit 25 is executed as a device for storing the instantaneous value of a variable.

The third 17, the fourth 31, the fifth 39 of the first 47 and the second 52 of the setting device are made in the form of, for example, an adjustable voltage regulator. The device works as follows.

At the end of the set of the required coke dose in one of the weight funnels, the corresponding control input of the switch 5 receives a signal I, or 1g, about the end of the dose set formed, for example, when the shutter of the weight funnel is opened. The signal I closes the first and third keys 6 and 7, passes to the first inputs of the first and second adders 10 and 11, respectively, the signal on the actual humidity of coke in the first weight funnel, coming from the output of the first moisture meter 1 to the first information input of switch 5, and the signal about the actual mass of the coke dose in this weighing funnel, coming from the output of the first meter 3 of the mass of coke to the third information input of the switch 5. At the signal I-ji, the second and

the fourth keys 8 and 9, passes to the second inputs of the first and second adders 10 and 11, respectively, a signal on the actual humidity of coke in the second weighing funnel, coming from the output of the second moisture meter 2 to the second information input of the switch 5, and a signal on the actual mass of the dose coke in this weighing funnel coming from the output of the second meter 4 of the coke mass to the fourth input terminal of the switch 5. Thus, at the first output of the switch 5, the signal WK (i) about the measured humidity of the next dose is generated sa output from the first adder 10. The second output of the switch 5 is formed by a signal G (i) the measured mass of coke regular dose, from the output of the second adder 11.

In the first comparison block 48, the signal Wj, (i) from the output of the first gauge 47 is subtracted from the signal). The received signal

4WR (i) -WR (i) -WK (i) (1)

(in the first multiplication unit 49 is multiplied by the signal G (i) about the mass of a portion of coke coming from the second output of the switch 5, and by the factor

0

0.01. As a result, a signal is generated at the output of the first multiplication unit 49.

Ј. (I) -0.01-dtfK (i) -G (i) (2)

h

about the value of underload or overload of coke in the next dose (depending on the sign / 3WK (i)) in terms of its reference moisture WK (i), incoming

to the input of the second multiplication unit 50, where it is multiplied by the conversion factor k (i), the signal of which is received from the output of the controller 5 of the adjuster 12. The signal from the obtained coke mass correction

(3)

0

4G (i) -k (i) -ЈQ (i)

is fed to the input of the first non-linear smoother 51, which is intended to filter the high-frequency components of the 3G (i) signal. These components include calculation errors due to interference with measurements of the mass and humidity of coke, as well as fast-changing components of useful signals, the implementation of which is impractical because of the significant inertia of the blast furnace, which is practically unresponsive to high-frequency effects. The operation of the first nonlinear smoother 51 with the following values of the tuning parameters k is described by the equations

 (1) with / "f-rfGCi / s; iG (i) -dG (i 1) + aignlWG (i) (i),

where rfG (i) -dG (i) -dG (i-l);

. Ј # etg;

I I with / j bWG (.i) J,

where с and / 5 are the tuning coefficients chosen based on the static characteristics of the useful signal and interference, as well as from the dynamic characteristics of the blast furnace. In this case, the coefficient o (k

is selected from the condition

, e / K (l-exp (-dt; (tk)),

where is at. - the average value of the time interval between a set of adjacent coke doses; T c is the constant inertia time of the control channel model

(1) gnl

(four)

measurement of coke consumption - | change in the content of silicon in cast iron.

At dt, and 10 minutes and hours, the value is o (k is taken equal to 0.02, the coefficient is kg. The value of h is taken equal to the sum of time

transport delay, 5 hours of the control channel model and time, 5 hours spent by the system of control of the chemical composition of pig iron for the selection, preparation and analysis of pig iron samples.

 The signal of the smoothed 4G (i) value of the coke mass adjustment comes from the output of the first nonlinear smoother 51 to the input of the third cywi 53, where it is added to the signal G (i) about the reference value of the mass of the coke dose coming from the output of the second setpoint 52. As a result

715

the output of the third adder 53 generates a signal about the corrected task for the mass of the next (i-H) -ft dose of coke

G (i + l) G (i) -MG (i), (5)

entering the system; / implementation of tasks for the mass of coke doses for each weighing funnel (not shown in the drawing).

I

The first information input of the tuner-adjuster 12 receives the signal / SWK (i) from the output of the first comparison unit 48. In the first delay block 22, this signal is delayed by a time Јt + n 9 h. The delayed signal 4W to (1-Јz) is fed to the input of the second nonlinear smoother 19, used in this case for the current averaging dW k data (i-fl ), on the interval of time between adjacent releases of cast iron. The operation of nonlinear smoother 19 is decomposed by equations (4) with the following values of the tuning parameters:

the average value of the interval of averaging

(or the number N t of consecutive measurements for which the average value is determined) is found by the following relationships:

d. -Lc Nc + l

The adjuster 12 sends a signal that the analysis of the next sample of cast iron has been completed. This signal closes the fifth and sixth pass keys 14 and 13S, respectively, $ signal

10 () to the input of the quadrant 20 and to the second input of the third multiplication unit 18 and the signal Si (l) to the first input of the fourth unit of comparison 15. In the fourth block, 15 comparisons from the signal

IS Si (l) subtracts the signal D8g (1) from the output of the fourth adder 54, which is the cumulative effect of changing the humidity of blowing and changes in the iron content of the agglomerator,

20 reduced to the output variable - the silicon content in the cast iron on the 1st release. Received signal

. .sk

si14 (l) -sid) -dsi (l)

(7)

25

xc

determined30

N U t j with L

(6)

35

enters the input of the third comparison unit 16, where it is compared with the signal Si (l) coming from the output of the third setpoint 17, the received signal fs. (l) Sic (l) -Si (l) is fed to the first input of the third block 18 multiply, where multiplied by a remote signal (1- -LJ,). At the output of the quadrant 20, a signal Sw (l) UWK () z is input, which is fed to the input of the third nonlinear oscillator 23. At the output of the third multiplication unit 18 It is formed

where is at. - average interval value signal S (l) dW „(l-fl.). (), no-time between adjacent

protruding to the input of the fourth nonlinear smoother 21.

cast iron starts,

Accept dt; 1 0 min, / 11 g 2 h, define,, 15. The coefficient p can be accepted, B in particular ;, equal to the maximum absolute value of the RC for. So, for example, with a range of changes of 2% V to 12% and with WR 77.,.

CI C 10

Amount of time eadr.

The dWK () signal from the output of the second nonlinear smoother 19 is supplied to the information input of the fifth key 14.

At the moment of completing the measurement of the chemical composition variables of the pig iron at the next 1st release from the chemical composition control system of the iron to the second information input of the adjuster-adjuster 12 (to the information input of the fifth

eight

key 14) the signal ib of the measured value Si (l) of silicon content in the iron is fed, and the control input

Controller 12 adjusts the completion of the analysis of the next sample of cast iron. This signal closes the fifth and sixth pass keys 14 and 13S, respectively, $ signal

() to the input of the quad 20 and to the second input of the third multiplication unit 18 and the signal Si (l) to the first input of the fourth comparison unit 15. In the fourth block, 15 comparisons from the signal

S Si (l) subtracts the signal D8g (1) from the output of the fourth adder 54, which is the cumulative effect of changing the humidity of blowing and changes in the iron content of the agglomerator,

0 reduced to the output variable - the content of silicon in cast iron on the 1st release. Received signal

. .sk

si14 (l) -sid) -dsi (l)

(7)

enters the input of the third comparison unit 16, where it is compared with the Si (l) signal coming from the output of the third setter 17, the received signal fs. (l) Sic (l) -Si (l) is fed to the first input of the third multiplication unit 18, where multiplied by the remote signal (1- -LJ,). At the output of the quadrant 20, a signal Sw (l) UWK () z is inputted to the input of the third nonlinear oscillator 23. At the output of the third multiplication unit 18 It is formed

signal S (l) dW „(l-fl.). (), no- -

0

45

0

stepping to the input of the fourth nonlinear smoother 21.

The third and fourth non-linear smoothes 23 and 21 are designed to average the incoming signals. The operation of these non-linear smoothers is described by equations (4) with the settings d-d, / jp ,. for the third non-linear smoother 23 and with coefficients (,,,

Slag- ps determining the value of the averaging interval

L Updl of the fourth nonlinear liver 21. Coefficient cf,

/ ..

p vi

l f.

N

P at.

fit at.

(eight)

r At tK-9 hours, hours, c is determined (p 0.2. The coefficients pp and / are selected taking into account the maximum absolute values of the signals uWK, Ј. and the nature of the operations performed in blocks 20 and 18, and can be accepted you, in particular, 0 and pp (, 2.5. The value of p corresponds to the average time interval between the releases of iron: h.

At the output of the third nonlinear smoother 23, a signal is generated for estimating the dispersion of measured coke moisture values in accordance with Formula (4), which is fed to the input of dividing unit 24. iron entering the second input of block 24 division. As a result of the division at the output of block 24, a signal is generated for estimating the regression coefficient h., (1) reflecting the degree of linear dependence of the errors in controlling the silicon content in the iron from fluctuations in the moisture content of coke.

The absolute value of the coefficient a „, - (1) is the higher, the narrower the line wr5i

on the relationship between Јs. and / aW „and than sili i I4

it differs in the recalculation coefficient, k, used in the second multiplication unit for calculating the coke mass corrections necessary to compensate / JWk, from its optimal value. In the idealized case, when k is close to optimal, the value comes from the output of the second comparison unit to the information input of the storage unit 25, to the control input of which a signal T is sent indicating that the analysis of the next first sample of cast iron is completed. In accordance with this signal, recording and storing up to the moment the signal 13 on the readiness of the analysis of the cast iron sample is received, the effects of fluctuations in the humidity of the soil on the next (1 + 1) th output

and Ј „practically absent, e- 0. If the value of k

W-iii

| ti fully compensated and connected

 between вW vuet, i.e.

exceeds the optimal value, this leads to overshoot (i.e., excessive changes in the mass of coke in response to changes in humidity). As a result, the coefficient a has a positive sign. If the value of k is below the optimum, this leads to under-compensation of changes in humidity and negative values of the coefficient aw.s. Based on this relationship of the coefficients k and, one can refine k by the value of the coefficient aw.s ;.

The signal a from the output of dividing unit 24 is fed to the input of a scaling unit 28 used for converting a.5; in relevant adjustments ak:

Ak (l) b-aws (l),

the launch of cast iron, in block 25 of storing the value of k (l). This coefficient is used during the next time interval At p in the second multiplication block 50 multiplier 50 to calculate the dG (i) k (i) -Ј (1) corrections. Here, as k (i), the value k (l) stored in the storage unit 25, read in every 1st

45 point in time.

At the information input of the correction block 29, according to changes in humidity, a blow signal is received) on the measured value of humidity blow in

5 (, jth time instant. The information input of the correction unit 29 is connected to the first input of the fifth comparison unit 30. In the fifth comparison unit 30, the signal Wg (j) of the measured humidity value is blown compared with the signal w (j) of its basic value coming from the output of the fourth knob 31. The received signal

(9) awe (j) wa (j) -v5 (j) (i)

55

where b kp / kRs

V

k - coefficient of usig J J

a lazy model of the regulation channel — a change in the mass of coke — a change in the silicon content in the iron; the tuning factor determining the degree of trust in the estimates, C ik 4 I. The signal dk (li) from the output of the scaling unit 28 is fed to the input of the second comparison unit 27, where it is subtracted from the signal k (ll) about the value of the coefficient k, refined after the preceding (ll) -ro release of cast iron. The signal k (l-l) is fed to the second-input of the second comparison unit 27 from the output of the storage unit 25 through the second delay block 26, where it is delayed by a time equal to the average time interval between the neighboring iron outlets. The received difference signal

uk (l) k (l-l) -dk (l)

(YU)

comes from the output of the second comparison unit to the information input of the storage unit 25, to the control input of which a signal T is sent indicating the completion of the analysis of the next first sample of cast iron. In accordance with this signal, recording and storing is carried out until the signal 13 is received about the readiness analysis of the cast iron sample taken from the following (1 + 1) th output.

from the output of the fifth comparison unit, through the second scaling unit 32, arrives at the first input of the fifth adder 33. In the second scaling unit 32, the signal aWa (j) is multiplied by the Coefficient ar. The second input of the fifth adder 33 receives a signal from its output, delayed in the third delay block 35 by the time dt - (4t- - sampling interval) and multiplied by the factor a, in the third m-stacking unit 34. Thus, of that adder 33 A signal is formed

aSiw (j) -a, 4Siw (j-l) + a,., aWa (j), (l2)

where (-4ty / T4) j a2 kw “a-;

T ...- is constant over time;

v

Yu

15

an adder 43, the second input of which receives a signal from its output, held in the test block 44 of the delay and multiplied in the fifth scaling unit 42 by a. In the fourth scaling block 41, the signal η „(m) is multiplied by the factor a. At the output of the sixth adder 43, a signal is generated about the calculated value of the magnitude of the change in the silicon content in the iron under the effect of changes in the iron content in the sinter according to formula (II), where

a., (- Mtm / TFe);

a a; kpe-a,; (14)

ASi Fe (m) a, - 3SiFe (m-1) + a g - & 7ea (m),

where Atm is the sampling interval of the signal about the iron content in

"/

gain factor

20

about

agglomerate;

Tre is constant time; kp is the gain. The signal L Si Fe (tn) from the output of the sixth adder 43 through the fifth block 45 in afterwards. Equation (11) represents 25 holders supplied to the information

The change in humidity is blowing - the change in the silicon content in the iron.

discrete channel model; change in humidity; blowing — change in silicon content in cast iron.

The 4 Si (j) signal from the output of the fifth adder 33 is fed to the input of the fourth delay unit 36, where it is delayed by the time r # + 4t | S where the delay in the control channel the change in humidity to blow is the change in silicon content in the iron. The signal i) from the output of the fourth delay unit 36 is fed to the information input of the seventh key 37, the output of which is connected to the output of the correction unit 29 for humidity changes to blow.

Similarly, in block 38 for adjusting for changes in iron in the agglomerate, the signal about the amount of change in the iron content in the agglomerate of the comparison unit 15 from the signal of the eighth key 46, In the fifth block 43, the signal 4Sipe is delayed by C1 -CFe + atm, where p - delay in the control conversion channel

30 perturbing disturbance change in the iron content in the agglomerate — change in the silicon content in the iron,

On the signal I. about the end of the chemical analysis of the composition of cast iron at the next

The 1st release, coming to the control inputs of the seventh and eighth keys, signals and Siw (l), respectively, from the outputs of the seventh and eighth keys, go to the inputs of the fourth adder 54, where they are summed up:

40

iSi (l) dSiw (l) + 4Sipp.), (15)

and the signal ASi (l) from the output of the fourth adder 54 is subtracted in the fourth

is read into changes in the silicon content of the cast iron.

The signal from the information input of the correction block 38 by the change in the iron content of the agglomerate enters the second input of the sixth comparison block 40, where it is compared with the Fee signal from the output of the fifth adjuster 39 about its base value. Received signal

4FeM (ni) -FeN (m) -Fe0 ((Tn) (13)

through the fourth scaling unit 41 is fed to the first input of the sixth

50

holding flint in cast iron on the 1st release.

The values of the gain factors k, the constant time and the lag time are

V ° 04r b;

 h;

Rya

5 h;

55

V0.5 h; 2Ft-8h

Then, for example, with flt j 10 min a, (), 92; , 0032 and at mi the corresponding values are 0.67 and 0.20.

five

an adder 43, the second input of which receives a signal from its output, held in the test block 44 of the delay and multiplied in the fifth scaling unit 42 by a. In the fourth scaling unit 41, the signal ГGe (t) is multiplied by the factor a. At the output of the sixth adder 43, a signal is generated about the calculated value of the magnitude of the change in the silicon content in the iron under the effect of changes in the iron content in the sinter according to formula (II), where

a., (- Mtm / TFe);

a a; kpe-a,; (14)

ASi Fe (m) a, - 3SiFe (m-1) + a g - & 7ea (m),

where Atm is the sampling interval of the signal about the iron content in

the eighth key 46, in block 43, the 4Sipe signal is delayed by C1 -CFe + atm time, where p is the delay in the controlled perturbation transformation channel, the change in the iron content in the sinter is the change in the silicon content in the iron,

On the signal I. about the end of the chemical analysis of the composition of cast iron at the next

The 1st release coming to the control inputs of the seventh and eighth keys, signals and Siw (l)), respectively, from the outputs of the seventh and eighth keys arrive at the inputs of the fourth adder 54, where they are summed up:

block 15 comparison of the signal about coiSi (l) dSiw (l) + 4Sipp.), (15)

and the signal ASi (l) from the output of the fourth adder 54 is subtracted in the fourth

holding flint in cast iron on the 1st release.

The values of the gain factors k, the constant time and the lag time are

V ° 04r b;

 h;

Rya

5 h;

V0.5 h; 2Ft-8h

Then, for example, with flt j 10 min a, (), 92; , 0032 and at min the corresponding values are 0.67 and 0.20.

Thus, by calculation, the Si (1) signal on the silicon content in the pig iron at the 1st release eliminates changes in the silicon content, due to changes in humidity to blow and change in the iron content in the sinter, taking into account delays in the control channels.

The use of the proposed device contributes to an improvement in the quality control of the thermal state of a blast furnace (an indicator of which is, in particular, a change in the silicon content in the pig iron). This effect is achieved due to the introduction into the device of the fourth comparison unit of the fourth adder, the first correction block for changes in humidity to blow and the second correction block for changes in the content of iron in the agglomerate. This provides a more accurate automatic adjustment of the coefficient k of recalculation of the coke's moisture content to compensate for changes in the coke mass by eliminating changes in the iron content of the cast iron due to changes in the humidity of the blown and iron contents in the agglomerate that distort estimate of the correlation coefficient to be determined, a ,. in the controller-tuner, and, therefore, the accuracy of the correction coefficient k is improved.

To evaluate the efficiency of the device, a simulation of the blast furnace control system, including the known device and the system, including the proposed device, is carried out with imitation of external coordinate influences and the drift of the amplification coefficients of the channels that convert changes in moisture and mass of coke into cast iron The test results show that the use of the device makes it possible to reduce the deviations of the silicon content in the iron from a predetermined level by approximately 0.03 (abs.). This, in turn, makes it possible to reduce the required heat reserve and reduce the specific coke consumption by 1.5 kg / t of pig iron.

Claims (1)

Invention Formula A device for correction of coke mass, containing first and second coke moisture meters, first and second coke mass meters, a switch containing the first, second third and fourth keys, the first and second adders, the first and second sensors, connected in series with the first comparison unit, the first the multiply unit, the second multiply unit, the first nonlinear smoother and the third adder, the adjuster controller containing the third setter, the five key connected in series the first delay unit, the second nonlinear spectra The spruce, sixth key, quad and I third nonlinear smoother, the second block connected in series (delays, the second comparison block and the memory block, the third comparison block connected in series, the third multiplication unit, the fourth nonlinear smoother, the dividing unit and the first scaling block, and the outputs of the first and The second coke moisture meters are connected to the information inputs of the first and second keys and are the first and second information inputs of the switch; the outputs of the first and second mass meters The coke s are connected to the information inputs of the third and fourth keys and are the third and fourth information inputs of the switch, the control inputs of the first and third keys are connected to each other and to the first control input of the switch, the control inputs of the second and fourth keys are interconnected and the second information input of the switch, the outputs of the first and second keys are connected respectively to the first and second inputs of the first adder, the output of which is connected to the first input of the first comparison unit the second input of which is connected to the output of the first setter, the outputs of the third and fourth keys are connected to the first and second inputs of the second adder, the output is expensively connected to the second input of the first multiplication unit, the second input of the third adder is connected to the output of the second setter, the output of the first comparison unit is connected to the input of the first delay unit is the first information input of the regulator-adjuster, the output of the memory unit is connected to the second input of the second multiplication unit and to the input of the second delay unit, the output is The first scaling unit is connected to the second input of the second comparison unit, the output of the third nonlinear smoother is connected to the second input of the dividing unit, the input of the third comparison unit is connected to the output of the third setter, the control inputs of the fifth and sixth keys are interconnected, and the control unit The memory input of the memory control unit and with the control input of the adjuster adjuster, the information input of the fifth key is connected to the second information input of the adjuster adjuster, the input of the quadrator is connected to the second input of the third block of mind The legs, characterized in that, in order to improve the accuracy of the correction of the mass of coke, the fourth comparison unit, the fourth sum-tor, the correction block for humidity changes, blowing, containing the fourth unit, connected in series to the fifth comparison unit, second a scaling block, a fifth adder, a fourth delay block and a seventh key, a fifth adder output through a third delayed block connected in series and a third scaling block are connected to the second input of the fifth adder, the first input of the fifth block compares and is connected to the data input of the first block the correction for changes in humidity blows, and the second with the output of the fourth setter, the second correction block for changes in the iron content in the sinter, containing sequentially connected the fifth setter, the sixth comparison unit, the fourth scaling unit, the sixth adder, the fifth delay unit and the eighth the key, the output of the sixth adder through the sixth delay block connected in series and the fifth scaling block are connected to the second input of the sixth sum The second input of the sixth comparison unit is connected to the information input of the second correction block by changes in the iron content in the sinter, the control inputs of the seventh and eighth keys are connected respectively to the control inputs of the correction block for humidity changes to blow and the correction block for changes in iron content in the agglomerate and control inputs of the adjuster adjuster, the outputs of the seventh and eighth keys are connected to the first and second inputs of the fourth adder, the output of which is connected to the first input of the fourth The first comparing unit, the output of the fifth key is connected to the second input of the fourth comparing unit, the output of which is connected to the second input of the third comparing unit.