CN104316129A - Method and device for measuring consumption amount and layer thickness of hearth layer for sinter - Google Patents

Abstract

The embodiment of the invention discloses a method and a device for measuring consumption amount and layer thickness of a hearth layer for sinter, and a method and a device for controlling the measured layer thickness of the hearth layer. The method and the device have the advantage that by adopting the measurement mode, the consumption amount and layer thickness of the hearth layer are obtained in real time to judge whether the measured layer thickness meets the requirement or not, and a valve under a hearth layer bin is automatically adjusted, so the consumption amount and layer thickness of the hearth layer can be accurately controlled, and the purpose of improving the quality of sinter is realized.

Description

A kind of hearth layer for sintering consumption and thickness flexible measurement method and device

Technical field

The present invention relates to SINTERING TECHNOLOGY field, particularly a kind of hearth layer for sintering consumption and thickness flexible measurement method and device.

Background technology

Sintering in steel manufacture process refers to allocates various powdery iron-containing raw material into appropriate fuel, flux and water, ignition on agglomerating plant after mixing and pelletizing, makes it series of physical chemical change occurs, mineral powder granular is bonded to the process of block.In sintering process, in order to ensure that bed permeability is to improve sintering quality and efficiency, also produce high strength in order to avoid pallet grid section directly contacts with sintered material to wear and tear simultaneously, before the compound of pallet upper berth, should first at the material that castor bar upper berth one deck granularity of sintering pallet is thicker, this layer of coarse fodder is called grate-layer material.

In general, grate-layer material adopts the finished product of 8-16mm grade in sintering finished ores to be transported to shop fixtures feed bin by belt, after chassis runs, and first grate-layer material, then at the basic upper berth compound of grate-layer material, then exhausting ignition trigger sintering process.Grate-layer material effectively can stop that a large amount of powder is by air exhauster suction flue, reduces the dustiness in waste gas, extends the serviceable life of air exhauster rotor; Grate-layer material can also prevent Sinter grid section, and effective exhausting area is remained unchanged, and air flow method is even, thus improves sintering quality and efficiency.

Need strictly to control grate-layer material thickness: if grate-layer material layer thickness is too thick simultaneously, grate-layer material use amount can be increased on the one hand, cause cost to increase and the wasting of resources, also affect the gas penetration potential of the bed of material simultaneously; If grate-layer material thickness is too thin, in sintering process, when zone of combustion is issued to grid section, grid section may burn out or the liquid phase of melting be adhered on grid section by the high-temp waste gas of zone of combustion, cause grid section scaling loss serious, damage agglomerating plant, shorten service life of equipment, increase purchase commodity and the cost of labor thereof of the equipment such as grid section.And calculate shop fixtures bin blanking flow (consumption), be to more accurately control grate-layer material thickness, blanking flow number determine the size of thickness.

At present, the use amount of grate-layer material can only control by regulating the lower valve aperture of shop fixtures feed bin the shop fixtures doses be taped against on chassis, and lower valve Reusability, has certain wearing and tearing, and along with the difference of service time, wear extent is also different.Cause under same aperture, discharge quantity is changed.Cause shop fixtures doses not to be distribution accurately controlled further, more can not draw grate-layer material thickness in real time.And sintering plant, just when commissioning test or maintenance down, just regulates grate-layer material discharge quantity.Once grate-layer material discharge quantity is adjusted; even if improper; could correct when also can only wait until next commissioning test or maintenance down; this mode regulates out of true; and regulating cycle is long; can not realize regulating in real time and measuring shop fixtures doses and thickness, not reach the object improving Sintering Yield and quality.

Summary of the invention

Provide a kind of mode of measurement in the embodiment of the present invention, draw grate-layer material discharge quantity and grate-layer material thickness in real time, finally reach the target improving sinter quality.

The invention provides a kind of hearth layer for sintering consumption measuring method, comprising:

Gather from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

According to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Gather from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

According to the shop fixtures bin-level value determination shop fixtures bin-level state of minutes point in described cycle T;

According to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

Preferably, in described cycle T, in minute average sintering machine machine speed computation period T, the average machine speed step of sintering machine is:

$\mathrm{ASSpeed}\left(n\right)=\frac{\underset{i=1}{\overset{T}{\mathrm{\Σ}}}\mathrm{SSpeed}\left[i\right]}{T},$

Wherein, SSpeed [1] is time point (t in cycle T _c-T) to (t _c-T+1) corresponding minute average sintering machine machine speed; SSpeed [T] is time point (t in cycle T _c-1) to t _ccorresponding minute average sintering machine machine speed; SSpeed [i] is time point (t in cycle T _c-((T-i)+1)) to (t _c-(T-i)) corresponding minute average sintering machine machine speed; n represents arbitrary cycle.

Further, according to the shop fixtures bin-level value determination shop fixtures bin-level state of minutes point in described cycle T, comprising:

Determine the shop fixtures bin-level value of minutes point in cycle T;

Wherein, current minutes point t _ccorresponding shop fixtures bin-level is MLevel [T+1], minutes point (t _c-T) corresponding shop fixtures bin-level is MLevel [1], minutes point (t _c-T+ (i-1)) corresponding place mat feed bin position MLevel [i], $i\⊆[i,T+1];$

Judge MLevel [T+1], MLevel [T] ... MLevel [i] ..., the relation between MLevel [2], MLevel [1];

If MLevel [T+1] <MLevel [T] <...<MLevel [2] <MLevel [1], then determine that shop fixtures bin-level state is in decline state;

If MLevel [T+1] >MLevel [T] >...>MLevel [2] >MLevel [1], then determine that shop fixtures bin-level state is in propradation;

If

MLevel[1]<MLevel[2]<...<MLevel[i],MLevel[i]>MLevel[i+1]>...>MLevel[T+1]，

Then determine that shop fixtures bin-level state is in rising and transfers decline state to;

If

MLevel[1]>MLevel[2]>...>MLevel[i],MLevel[i]<MLevel[i+1]<...<MLevel[T+1]，

Then determine that shop fixtures bin-level state is in decline and transfers propradation to.

Further, according to grate-layer material consumption in described shop fixtures bin-level state computation cycle T:

If a. shop fixtures bin-level state is in decline state, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

If b. shop fixtures bin-level state is in propradation, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein C _sfor grate-layer material consumption under unit machine speed;

If c. shop fixtures bin-level state is in rising and turns decline state, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{k}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right)+\underset{i=k+1}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

Wherein, k (k<T+1) represents that rising turns the flex point of decline state;

If d. shop fixtures bin-level state is in decline and turns propradation, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{k}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right)+\underset{i=k+1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein, k (k<T+1) represents that decline turns the flex point of propradation.

Again further, under obtaining described unit machine speed by the following method, grate-layer material consumption is:

(1) according to arbitrary cycle grate-layer material consumption and the average machine speed of sintering machine of decline state, under obtaining unit machine speed, grate-layer material consumes C _s, computing formula is wherein, n representative is in arbitrary cycle of decline state;

Or,

(2) if occur continuously multiple cycle be decline state: A. according to arbitrary cycle grate-layer material consumption of decline state and the average machine speed of sintering machine, obtain grate-layer material consumption C (n) under unit machine speed, computing formula is wherein, n is the arbitrary cycle being in decline state;

B. ask the mean value in count cycle C (n), obtain grate-layer material consumption under unit machine speed, computing method are as follows:

wherein, count represents the number of cycles being in decline state continuously.

Present invention also offers a kind of hearth layer for sintering thickness measuring method, comprising:

According to above-mentioned hearth layer for sintering consumption measuring method, hearth layer for sintering consumption AMConsume (n) in measurement period T;

Volume V (n) of hearth layer for sintering in computation period T, method is as follows:

wherein, ρ represents grate-layer material density, and ρ can test and obtain;

In computation period T grate-layer material on chassis spread length L (n), method is as follows:

$L\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}\mathrm{SSpeed}\left[i\right];$

Average grate-layer material thickness H (n) in computation period T, method is as follows:

wherein, W represents chassis width, and W can test and obtain, and is definite value.

Present invention also offers a kind of hearth layer for sintering layer thickness control method, comprising:

According to above-mentioned hearth layer for sintering consumption measuring method, measure hearth layer for sintering consumption;

According to described hearth layer for sintering consumption, average grate-layer material thickness in measurement period T;

Judge the relation between described hearth layer for sintering thickness and setting value;

When the absolute value of the difference of described hearth layer for sintering thickness and setting value, be less than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture constant;

When described hearth layer for sintering thickness is greater than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture and turn down;

When described hearth layer for sintering thickness is less than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture and tune up.

Further, above-described control shop fixtures bin blanking valve of electric valve aperture is turned down, comprising:

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation;

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.

Further, above-described control shop fixtures bin blanking valve of electric valve aperture tunes up, and comprising:

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation;

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation.

Meanwhile, present invention also offers a kind of hearth layer for sintering consumption measurement mechanism, comprising:

Machine speed collecting unit, for gathering from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

Average machine speed computing unit, for according to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Shop fixtures bin-level value collecting unit, for gathering from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

Shop fixtures bin-level status determining unit, for the shop fixtures bin-level value determination shop fixtures bin-level state according to minutes point in described cycle T;

Grate-layer material consumption amount calculation unit, for according to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

Preferably, described average machine speed computing unit, utilizes the average machine speed of sintering machine in computation period T,

Wherein, SSpeed [1] is time point (t in cycle T _c-T) to (t _c-T+1) corresponding minute average sintering machine machine speed; SSpeed [T] is time point (t in cycle T _c-1) to t _ccorresponding minute average sintering machine machine speed; SSpeed [i] is time point (t in cycle T _c-((T-i)+1)) to (t _c-(T-i)) corresponding minute average sintering machine machine speed; n represents arbitrary cycle.

Preferably, described shop fixtures bin-level status determining unit, comprising:

Shop fixtures bin-level value determining unit, for determining the shop fixtures bin-level value of minutes point in cycle T;

Wherein, current minutes point t _ccorresponding shop fixtures bin-level is MLevel [T+1], minutes point (t _c-T) corresponding shop fixtures bin-level is MLevel [1], minutes point (t _c-T+ (i-1)) corresponding place mat feed bin position MLevel [i], $i\&SubsetEqual;[i,T+1];$

Judging unit, for judging MLevel [T+1], MLevel [T] ... MLevel [i] ..., the relation between MLevel [2], MLevel [1];

Status determining unit, if for MLevel [T+1] <MLevel [T] <...<MLevel [2] <MLevel [1], then determine that shop fixtures bin-level state is in decline state;

If MLevel [T+1] >MLevel [T] >...>MLevel [2] >MLevel [1], then determine that shop fixtures bin-level state is in propradation;

If

MLevel [1] <MLevel [2] <...<MLevel [i], MLevel [i] >MLevel [i+1] >...>MLevel [T+1], then determine that shop fixtures bin-level state is in rising and transfers decline state to;

If MLevel [1] >MLevel [2] >...>MLevel [i], MLevel [i] <MLevel [i+1] <...<MLevel [T+1], then determine that shop fixtures bin-level state is in decline and transfers propradation to.

Preferably, described grate-layer material consumption amount calculation unit, comprising:

First computing unit, for calculating the grate-layer material consumption of decline state, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

Second computing unit, for calculating the grate-layer material consumption of propradation, computing formula is: $\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}\left(C_s\mathrm{SSpeed}\right[i]);$ Wherein C _sfor grate-layer material consumption under unit machine speed;

3rd computing unit, turn the grate-layer material consumption of decline state for calculating to rise, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{k}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right)+\underset{i=k+1}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

Wherein, k (k<T+1) represents that rising turns the flex point of decline state;

4th computing unit, turn the grate-layer material consumption of propradation for calculating to decline, computing formula is: $\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{k}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right)+\underset{i=k+1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$ Wherein, k (k<T+1) represents that decline turns the flex point of propradation.

Present invention also offers a kind of hearth layer for sintering thickness measurement mechanism, comprise above-mentioned hearth layer for sintering consumption measurement mechanism and thickness computing unit, thickness computing unit is used for hearth layer for sintering thickness in computation period T.

Present invention also offers a kind of hearth layer for sintering layer thickness control device, comprising:

Above-described hearth layer for sintering consumption measurement mechanism, for obtaining grate-layer material consumption in cycle T;

Thickness computing unit, consumes thickness for grate-layer material in computation period T;

Thickness judging unit, for judging that described grate-layer material consumes the relation between thickness and setting value, and;

First control module, for the absolute value of the difference when described hearth layer for sintering thickness and setting value, is less than 1% of the corresponding flow of valve maximum opening, then controls shop fixtures bin blanking valve of electric valve aperture constant;

Second control module, for being greater than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening when described hearth layer for sintering thickness, then control shop fixtures bin blanking valve of electric valve aperture is turned down;

3rd control module, for being less than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening when described hearth layer for sintering thickness, then control shop fixtures bin blanking valve of electric valve aperture tunes up.

Preferably, the second described control module, comprising: the first coarse adjustment unit and the first fine-adjusting unit;

If first coarse adjustment unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation;

If first fine-adjusting unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.

Preferably, the 3rd described control module, comprising: the second coarse adjustment unit and the second fine-adjusting unit;

If second coarse adjustment unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation;

If second fine-adjusting unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the embodiment of the present invention one hearth layer for sintering consumption measuring method exemplary process diagram.

Fig. 2 is the embodiment of the present invention two hearth layer for sintering thickness measuring method exemplary process diagram.

Fig. 3 is the embodiment of the present invention three hearth layer for sintering layer thickness control method exemplary process diagram.

The structural representation of the hearth layer for sintering consumption measurement mechanism that Fig. 4 provides for the embodiment of the present invention four.

The structural representation of the hearth layer for sintering thickness measurement mechanism that Fig. 5 provides for the embodiment of the present invention five.

The structural representation of the hearth layer for sintering layer thickness control device that Fig. 6 provides for the embodiment of the present invention six.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

In order to complete understanding the present invention, refer to numerous concrete details in the following detailed description, but it should be appreciated by those skilled in the art that the present invention can realize without the need to these details.In other embodiments, be not described in detail known method, process, assembly and circuit, in order to avoid unnecessarily cause embodiment fuzzy.

Embodiment one:

Fig. 1 is the embodiment of the present invention one hearth layer for sintering consumption measuring method exemplary process diagram.

Present embodiments provide a kind of hearth layer for sintering consumption measuring method, described method can comprise:

Minute average sintering machine machine speed in S11: collection period T.

Cycle T, namely once calculates for T minute.T can determine according to on-site actual situations, and selected standard guarantees that in cycle T, declining or turning the material level variable condition risen from decline can only appear once turning from rising in shop fixtures bin-level at the most.Definite value is after selected.Optional T≤5 minute herein.

Sintering machine machine speed, i.e. chassis gait of march.

Minute average machine speed refers to, collection per minute 60 sintering machine machine speed instantaneous values, then these 60 values is averaged, and is designated as a minute average sintering machine machine speed, and stores for subsequent use in a database by a minute average machine speed value.

In collection period T, minute average sintering machine machine speed, reads exactly from (t _c-T) to current time t _cbe stored in T minute average sintering machine machine speed in database.

S12: the average machine speed of sintering machine in computation period T.

T in the cycle T read from database minute average sintering machine machine speed is averaged, obtains the average machine speed of sintering machine in cycle T.

Preferably, a minute average sintering machine machine speed one-dimension array SSpeed [] (data element number is T) can be represented, wherein, SSpeed [1] is time point (t in cycle T _c-T) to (t _c-T+1) corresponding minute average sintering machine machine speed; SSpeed [T] is time point (t in cycle T _c-1) to t _ccorresponding minute average sintering machine machine speed; SSpeed [i] is time point (t in cycle T _c-((T-i)+1)) to (t _c-(T-i)) corresponding minute average sintering machine machine speed;

So, in cycle T, the computing formula of the average machine speed of sintering machine is: n represents any period herein, and namely in any one cycle T, the average machine speed of sintering machine can calculate according to above method.But the actual size of the average machine speed of sintering machine may be variant in each cycle T.

S13: the shop fixtures bin-level value of minutes point in collection period T.

Minutes point, i.e. whole minutes point.Gather from (t _c-T) to current time t _c, the shop fixtures bin-level value of minutes point in cycle T, amounts to (T+1) individual value.

Preferably, shop fixtures bin-level value can be stored in one-dimension array MLevel [] (data element number is T+1), wherein, current minutes point t _ccorresponding shop fixtures bin-level is MLevel [T+1], minutes point (t _c-T) corresponding shop fixtures bin-level is MLevel [1], minutes point (t _c-T+ (i-1)) corresponding place mat feed bin position MLevel [i],

S14: determine shop fixtures bin-level state.

Shop fixtures bin-level changes mainly inlet amount and consumption and determines, when the charging of grate-layer material feed belt, charging total amount is greater than the consumption of grate-layer material chassis, and now, shop fixtures bin-level is in propradation; When grate-layer material feed belt is stopped transport, shop fixtures feed bin does not have charging, only has chassis grate-layer material to consume, and now, shop fixtures bin-level is in decline state.Whole grate-layer material material level change presents serrate, has propradation, decline state, rising turns decline state and decline turns propradation, totally 4 kinds of states.

Preferably, the shop fixtures of method determination below bin-level state can be utilized:

First, the shop fixtures bin-level value of minutes point in cycle T is determined;

Then, judge MLevel [T+1], MLevel [T] ... MLevel [i] ..., the relation between MLevel [2], MLevel [1]:

If MLevel [T+1] <MLevel [T] <...<MLevel [2] <MLevel [1], then determine that shop fixtures bin-level state is in decline state;

If MLevel [T+1] >MLevel [T] >...>MLevel [2] >MLevel [1], then determine that shop fixtures bin-level state is in propradation;

If

MLevel [1] <MLevel [2] <...<MLevel [i], MLevel [i] >MLevel [i+1] >...>MLevel [T+1], then determine that shop fixtures bin-level state is in rising and transfers decline state to;

If

MLevel [1] >MLevel [2] >...>MLevel [i], MLevel [i] <MLevel [i+1] <...<MLevel [T+1], then determine that shop fixtures bin-level state is in decline and transfers propradation to;

S15: grate-layer material consumption in computation period T.

According to grate-layer material consumption in the shop fixtures bin-level state computation cycle T that said method is determined.In the different cycle T corresponding to shop fixtures bin-level state, the computing method of grate-layer material consumption are different.

If a. shop fixtures bin-level is in decline state, grate-layer material consumption in computation period T by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right).$

When shop fixtures bin-level is in decline state, only has chassis grate-layer material to consume, there is no charging.According to minutes point (t in cycle T _c-T+ (i-1)) to ((t _c-T+ (i-1))-1) difference of corresponding shop fixtures bin-level value MLevel [i] and MLevel [i-1], obtain grate-layer material consumption in cycle T through cumulative calculation.

When grate-layer material storehouse lower valve aperture is certain, in the unit interval, discharge quantity is certain, and when chassis runs, the shop fixtures doses that sintering machine speed (i.e. chassis travelling speed) is taped against in pallet unit area is sooner fewer.Grate-layer material consumption in the cycle T that can utilize decline state, sets up the relation of grate-layer material consumption and sintering machine machine speed, and therefore, under unit machine speed, grate-layer material consumes C _s, computing formula is as follows:

wherein, n representative is in arbitrary cycle of decline state;

Preferably, if there is multiple continuous print cycle, be in shop fixtures bin-level decline state, so can do increasing 1 to cycle aggregate-value and operate, be i.e. count=count+1, and to C _supgrade, under obtaining optimum unit machine speed, grate-layer material consumes C _s, and by C _sfor subsequent use stored in background data base, computing formula is as follows:

wherein, count represents the number of cycles being in decline state continuously.

If b. shop fixtures bin-level is in propradation, grate-layer material consumption in computation period T by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}\left(C_s\mathrm{SSpeed}\right[i]);$ Wherein C _sfor unit machine speed grate-layer material consumption.

When shop fixtures bin-level is in propradation, existing grate-layer material chassis consumes, and has again the charging of grate-layer material travelling belt, and shop fixtures bin-level value just can not be utilized to calculate grate-layer material consumption.Now can utilize grate-layer material consumption C under unit machine speed _sminute average sintering machine machine speed with correspondence, obtains grate-layer material consumption in cycle T.

If c. shop fixtures bin-level is in rising and turns decline state, grate-layer material consumption in computation period T by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{k}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right)+\underset{i=k+1}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

Wherein, k (k<T+1) represents that rising turns the flex point of decline state;

Shop fixtures bin-level is in rising when turning decline state, can be in the grate-layer material consumption of propradation and be in the grate-layer material consumption sum of decline state in computation period T, obtain grate-layer material consumption in cycle T.

If d. shop fixtures bin-level state is in decline and turns propradation, grate-layer material consumption in cycle T by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{k}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right)+\underset{i=k+1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein, k (k<T+1) represents the flex point declining and turn and rise.

Shop fixtures bin-level is in decline when turning propradation, can be in the grate-layer material consumption of decline state and be in the grate-layer material consumption sum of propradation in computation period T, obtain grate-layer material consumption in cycle T.

Further, utilize above method, unit interval (minute) average grate-layer material consumption in all right computation period T.

Again further, utilize above method, can also unit interval (minute) average grate-layer material consumption in computing time section.

Embodiment two:

Fig. 2 is the embodiment of the present invention two hearth layer for sintering thickness measuring method exemplary process diagram.Present embodiments provide a kind of hearth layer for sintering thickness measuring method, described method can comprise:

Minute average sintering machine machine speed in S21: collection period T.

S22: the average machine speed of sintering machine in computation period T.

S23: the shop fixtures bin-level value of minutes point in collection period T.

S24: determine shop fixtures bin-level state.

S25: grate-layer material consumption in computation period T.

About the detailed description of above-mentioned steps S21 ~ S25, specifically see the description of the step S11 ~ S25 in above-mentioned embodiment illustrated in fig. 1, can not repeat them here.

S26: calculate average grate-layer material thickness in all T.

First, the relation between quality and volume, density is utilized:

Grate-layer material consumption AMConsume (n) in cycle T=ρ gV (n), wherein, grate-layer material volume in V (n) indication cycle T, ρ represents grate-layer material density, and ρ can test and obtain.

Calculate volume V (n) of hearth layer for sintering in cycle T,

Then, in computation period T grate-layer material on chassis spread length L (n), method is as follows:

Finally, utilize grate-layer material volume V (n) in cycle T, V (n)=L (n) * W*H (n), wherein, H (n) represents average grate-layer material thickness in computation period T, L (n) represent grate-layer material on chassis spread length, W represents chassis width, W can test and obtain, and is definite value;

Derivation obtains, average grate-layer material thickness H (n) in cycle T:

Further, utilize above method, unit interval (minute) average grate-layer material thickness in all right computation period T.

Again further, utilize above method, can also unit interval (minute) average grate-layer material thickness in computing time section.

Embodiment three:

Fig. 3 is the embodiment of the present invention three hearth layer for sintering layer thickness control method exemplary process diagram.Present embodiments provide a kind of hearth layer for sintering layer thickness control method, described method can comprise:

Minute average sintering machine machine speed in S31: collection period T.

S32: the average machine speed of sintering machine in computation period T.

S33: the shop fixtures bin-level value of minutes point in collection period T.

S34: determine shop fixtures bin-level state.

S35: grate-layer material consumption in computation period T.

S36: grate-layer material thickness in computation period T.

About the detailed description of above-mentioned steps S31 ~ S6, specifically see the description of the step S26 in the step S11 ~ S25 and embodiment illustrated in fig. 2 two in above-mentioned embodiment illustrated in fig. 1, can not repeat them here.

S37: judge the relation between hearth layer for sintering thickness and setting value.

If grate-layer material layer thickness is too thick, grate-layer material use amount can be increased on the one hand, cause cost to increase and the wasting of resources, also affect the gas penetration potential of the bed of material simultaneously; If grate-layer material thickness is too thin, in sintering process, when zone of combustion is issued to fire grate bar, grid section may burn out or the liquid phase of melting be adhered on grid section by the high-temp waste gas of zone of combustion, cause grid section scaling loss serious, damage agglomerating plant, shorten service life of equipment, increase purchase commodity and the cost of labor thereof of the equipment such as grid section.

S38: control shop fixtures bin blanking valve of electric valve aperture constant.

When the absolute value of the difference of described hearth layer for sintering thickness and setting value, be less than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture constant.

S39: control shop fixtures bin blanking valve of electric valve aperture and turn down.

When the absolute value of the difference of described hearth layer for sintering thickness and setting value, be greater than 1% of the corresponding flow of valve maximum opening, and described hearth layer for sintering thickness is greater than setting value, then controls shop fixtures bin blanking valve of electric valve aperture and turn down.

S30: control shop fixtures bin blanking valve of electric valve aperture and tune up.

When the absolute value of the difference of described hearth layer for sintering thickness and setting value, be greater than 1% of the corresponding flow of valve maximum opening, and described hearth layer for sintering thickness is less than setting value, then controls shop fixtures bin blanking valve of electric valve aperture and tune up.

Preferably, described control shop fixtures bin blanking valve of electric valve aperture is turned down, comprising:

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, be greater than 5% of the corresponding flow of valve maximum opening, valve regulated amplitude is 5%;

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, be less than 5% of the corresponding flow of valve maximum opening, valve regulated amplitude is 1%.

Preferably, described control shop fixtures bin blanking valve of electric valve aperture tunes up, and comprising:

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, be greater than 5% of the corresponding flow of valve maximum opening, valve regulated amplitude is 5%;

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, be less than 5% of the corresponding flow of valve maximum opening, valve regulated amplitude is 1%.

Embodiment four:

The structural representation of the hearth layer for sintering consumption measurement mechanism that Fig. 4 provides for the embodiment of the present invention four.

Present invention also offers a kind of hearth layer for sintering consumption measurement mechanism, comprising:

Machine speed collecting unit 11, for gathering from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

Average machine speed computing unit 12, for according to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Shop fixtures bin-level value collecting unit 13, for gathering from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

Shop fixtures bin-level status determining unit 14, for the shop fixtures bin-level value determination shop fixtures bin-level state according to minutes point in described cycle T;

Grate-layer material consumption amount calculation unit 15, for according to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

In the embodiment of the present application, grate-layer material consumption amount calculation unit 15 can comprise: the first computing unit, the second computing unit, the 3rd computing unit and the 4th computing unit, wherein,

First computing unit, for calculating the grate-layer material consumption of decline state, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

Second computing unit, for calculating the grate-layer material consumption of propradation, computing formula is: $\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$ Wherein C _sfor grate-layer material consumption under unit machine speed;

3rd computing unit, turn the grate-layer material consumption of decline state for calculating to rise, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{k}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right)+\underset{i=k+1}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLeve}[i-1\left]\right);$

Wherein, k (k<T+1) represents that rising turns the flex point of decline state;

4th computing unit, turn the grate-layer material consumption of propradation for calculating to decline, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{k}{\mathrm{\&Sigma;}}}\left(\mathrm{MLeve}\right[i]-\mathrm{MLeve}[i-1\left]\right)+\underset{i=k+1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein, k (k<T+1) represents that decline turns the flex point of propradation.

The explanation of the hearth layer for sintering consumption measuring method that the relevant explanation of the hearth layer for sintering consumption measurement mechanism provided about embodiment four can provide in reference example one.

Embodiment five:

The structural representation of the hearth layer for sintering thickness measurement mechanism that Fig. 5 provides for the embodiment of the present invention five.

Present invention also offers a kind of hearth layer for sintering thickness measurement mechanism, comprising:

Machine speed collecting unit 21, for gathering from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

Average machine speed computing unit 22, for according to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Shop fixtures bin-level value collecting unit 23, for gathering from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

Shop fixtures bin-level status determining unit 24, for the shop fixtures bin-level value determination shop fixtures bin-level state according to minutes point in described cycle T;

Grate-layer material consumption amount calculation unit 25, for according to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

Thickness computing unit 26, for according to grate-layer material consumption in cycle T, average grate-layer material thickness in computation period T.

Embodiment six:

The structural representation of the hearth layer for sintering layer thickness control device that Fig. 6 provides for the embodiment of the present invention six.

Present invention also offers a kind of hearth layer for sintering layer thickness control device, comprising:

Machine speed collecting unit 31, for gathering from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

Average machine speed computing unit 32, for according to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Shop fixtures bin-level value collecting unit 33, for gathering from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

Shop fixtures bin-level status determining unit 34, for the shop fixtures bin-level value determination shop fixtures bin-level state according to minutes point in described cycle T;

Grate-layer material consumption amount calculation unit 35, for according to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

Thickness computing unit 36, for according to grate-layer material consumption in cycle T, average grate-layer material thickness in computation period T.

Thickness judging unit 37, for judging the relation between described grate-layer material thickness and setting value.

First control module 38, for the absolute value of the difference when described hearth layer for sintering thickness and setting value, is less than 1% of the corresponding flow of valve maximum opening, then controls shop fixtures bin blanking valve of electric valve aperture constant;

Second control module 39, for being greater than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening when described hearth layer for sintering thickness, then control shop fixtures bin blanking valve of electric valve aperture is turned down;

3rd control module 30, for being less than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening when described hearth layer for sintering thickness, then control shop fixtures bin blanking valve of electric valve aperture tunes up.

In the application one embodiment, the second control module 39 can comprise: the first coarse adjustment unit and the first fine-adjusting unit;

If first coarse adjustment unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation;

If first fine-adjusting unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.

In the application one embodiment, the 3rd control module 30 can comprise: the second coarse adjustment unit and the second fine-adjusting unit;

If second coarse adjustment unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation;

If second fine-adjusting unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation.

The explanation of the hearth layer for sintering thickness measuring method that the relevant explanation of the hearth layer for sintering thickness measurement mechanism provided about embodiment six can provide in reference example three.

Claims (17)

1. a hearth layer for sintering consumption measuring method, is characterized in that, comprising:

Gather from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

According to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Gather from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

According to the shop fixtures bin-level value determination shop fixtures bin-level state of minutes point in described cycle T;

According to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

2. hearth layer for sintering consumption measuring method according to claim 1, is characterized in that, according to the average machine speed step of sintering machine in described cycle T minute average sintering machine machine speed computation period T is:

$\mathrm{ASSpeed}\left(n\right)=\frac{\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}\mathrm{SSpeed}\left[i\right]}{T},$

Wherein, SSpeed [1] is time point (t in cycle T _c-T) to (t _c-T+1) corresponding minute average sintering machine machine speed; SSpeed [T] is time point (t in cycle T _c-1) to t _ccorresponding minute average sintering machine machine speed; SSpeed [i] is time point (t in cycle T _c-((T-i)+1)) to (t _c-(T-i)) corresponding minute average sintering machine machine speed; n represents arbitrary cycle.

3. hearth layer for sintering consumption measuring method according to claim 1, is characterized in that, according to the shop fixtures bin-level value determination shop fixtures bin-level state of minutes point in described cycle T, comprising:

Determine the shop fixtures bin-level value of minutes point in cycle T; Wherein, current minutes point t _ccorresponding shop fixtures bin-level is MLevel [T+1], minutes point (t _c-T) corresponding shop fixtures bin-level is MLevel [1], minutes point (t _c-T+ (i-1)) corresponding place mat feed bin position MLevel [i],

Judge MLevel [T+1], MLevel [T] ... MLevel [i] ..., the relation between MLevel [2], MLevel [1];

If MLevel [T+1] <MLevel [T] <...<MLevel [2] <MLevel [1], then determine that shop fixtures bin-level state is in decline state;

If MLevel [T+1] >MLevel [T] >...>MLevel [2] >MLevel [1], then determine that shop fixtures bin-level state is in propradation;

If

MLevel [1] <MLevel [2] <...<MLevel [i], MLevel [i] >MLevel [i+1] >...>MLevel [T+1], then determine that shop fixtures bin-level state is in rising and transfers decline state to;

If

MLevel [1] >MLevel [2] >...>MLevel [i], MLevel [i] <MLevel [i+1] <...<MLevel [T+1], then determine that shop fixtures bin-level state is in decline and transfers propradation to.

4. hearth layer for sintering consumption measuring method according to claim 3, is characterized in that, according to grate-layer material consumption in described shop fixtures bin-level state computation cycle T:

If a. shop fixtures bin-level state is in decline state, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLevel}[i-1\left]\right);$

If b. shop fixtures bin-level state is in propradation, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein C _sfor grate-layer material consumption under unit machine speed;

If c. shop fixtures bin-level state is in rising and turns decline state, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{k}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right)+\underset{i=k+1}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLevel}[i-1\left]\right);$

Wherein, k (k<T+1) represents that rising turns the flex point of decline state;

If d. shop fixtures bin-level state is in decline and turns propradation, calculate grate-layer material consumption by the following method:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{k}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLevel}[i-1\left]\right)+\underset{i=k+1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein, k (k<T+1) represents that decline turns the flex point of propradation.

5. hearth layer for sintering consumption measuring method according to claim 4, is characterized in that, under obtaining described unit machine speed by the following method, grate-layer material consumption is:

(1) according to arbitrary cycle grate-layer material consumption and the average machine speed of sintering machine of decline state, under obtaining unit machine speed, grate-layer material consumes C _s, computing formula is wherein, n represents arbitrary cycle of decline state;

Or,

(2) if occur that count cycle is decline state continuously:

A. according to arbitrary cycle grate-layer material consumption and the average machine speed of sintering machine of decline state, under obtaining unit machine speed, grate-layer material consumes C (n), and computing formula is wherein, n is arbitrary cycle of decline state;

B. ask the mean value in count cycle C (n), obtain grate-layer material consumption under unit machine speed, computing method are as follows:

$C_s=\frac{\underset{i=1}{\overset{\mathrm{count}}{\mathrm{\&Sigma;}}}C\left(i\right)}{\mathrm{count}};$

Wherein, count represents the number of cycles being in decline state continuously.

6. a hearth layer for sintering thickness measuring method, is characterized in that, comprising:

According to any one of claim 1-5 hearth layer for sintering consumption measuring method, hearth layer for sintering consumption AMConsume (n) in measurement period T;

Volume V (n) of hearth layer for sintering in computation period T, method is as follows:

wherein, ρ represents grate-layer material density, can test and obtain;

In computation period T grate-layer material on chassis spread length L (n), method is as follows:

$L\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}\mathrm{SSpeed}\left[i\right];$

Average grate-layer material thickness H (n) in computation period T, method is as follows:

wherein, W represents chassis width, and W can test and obtain, and is definite value.

7. a hearth layer for sintering layer thickness control method, is characterized in that, comprising:

According to claim 1-5 hearth layer for sintering consumption measuring method, hearth layer for sintering consumption in measurement period T;

According to described hearth layer for sintering consumption, average grate-layer material thickness in measurement period T;

Judge the relation between described hearth layer for sintering thickness and setting value;

When the absolute value of the difference of described hearth layer for sintering thickness and setting value, be less than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture constant;

When described hearth layer for sintering thickness is greater than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture and turn down;

When described hearth layer for sintering thickness is less than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening, then control shop fixtures bin blanking valve of electric valve aperture and tune up.

8. hearth layer for sintering layer thickness control method according to claim 7, is characterized in that, described control shop fixtures bin blanking valve of electric valve aperture is turned down, comprising:

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation;

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.

9. hearth layer for sintering layer thickness control method according to claim 7, is characterized in that, described control shop fixtures bin blanking valve of electric valve aperture tunes up, and comprising:

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation;

If the absolute value of the difference of described hearth layer for sintering thickness and setting value, being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation.

10. a hearth layer for sintering consumption measurement mechanism, is characterized in that, comprising:

Machine speed collecting unit, for gathering from (t _c-T) to current time t _cminute average sintering machine machine speed in cycle T;

Average machine speed computing unit, for according to the average machine speed of sintering machine in described cycle T minute average sintering machine machine speed computation period T;

Shop fixtures bin-level value collecting unit, for gathering from (t _c-T) to current time t _cthe shop fixtures bin-level value of minutes point in cycle T;

Shop fixtures bin-level status determining unit, for the shop fixtures bin-level value determination shop fixtures bin-level state according to minutes point in described cycle T;

Grate-layer material consumption amount calculation unit, for according to sintering machine average velocity in the shop fixtures bin-level state of minutes point in described cycle T and described cycle T, grate-layer material consumption in computation period T.

11. hearth layer for sintering consumption measurement mechanisms according to claim 10, is characterized in that, described average machine speed computing unit, utilize the average machine speed of sintering machine in computation period T, wherein,

SSpeed [1] is time point (t in cycle T _c-T) to (t _c-T+1) corresponding minute average sintering machine machine speed; SSpeed [T] is time point (t in cycle T _c-1) to t _ccorresponding minute average sintering machine machine speed; SSpeed [i] is time point (t in cycle T _c-((T-i)+1)) to (t _c-(T-i)) corresponding minute average sintering machine machine speed; n represents arbitrary cycle.

12. hearth layer for sintering consumption measurement mechanisms according to claim 10, is characterized in that, described shop fixtures bin-level status determining unit, comprising:

Shop fixtures bin-level value determining unit, for determining the shop fixtures bin-level value of minutes point in cycle T; Wherein, current minutes point t _ccorresponding shop fixtures bin-level is MLevel [T+1], minutes point (t _c-T) corresponding shop fixtures bin-level is MLevel [1], minutes point (t _c-T+ (i-1)) corresponding place mat feed bin position MLevel [i],

Judging unit, for judging MLevel [T+1], MLevel [T] ... MLevel [i] ..., the relation between MLevel [2], MLevel [1];

Status determining unit, if for MLevel [T+1] <MLevel [T] <...<MLevel [2] <MLevel [1], then determine that shop fixtures bin-level state is in decline state;

If MLevel [T+1] >MLevel [T] >...>MLevel [2] >MLevel [1], then determine that shop fixtures bin-level state is in propradation;

If

MLevel [1] <MLevel [2] <...<MLevel [i], MLevel [i] >MLevel [i+1] >...>MLevel [T+1], then determine that shop fixtures bin-level state is in rising and transfers decline state to;

If

MLevel [1] >MLevel [2] >...>MLevel [i], MLevel [i] <MLevel [i+1] <...<MLevel [T+1], then determine that shop fixtures bin-level state is in decline and transfers propradation to.

13. hearth layer for sintering consumption measurement mechanisms according to claim 10, it is characterized in that, described grate-layer material consumption amount calculation unit, comprising:

First computing unit, for calculating the grate-layer material consumption of decline state, computing formula is: $\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLevel}[i-1\left]\right);$

Second computing unit, for calculating the grate-layer material consumption of propradation, computing formula is: $\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$ Wherein C _sfor grate-layer material consumption under unit machine speed;

3rd computing unit, turn the grate-layer material consumption of decline state for calculating to rise, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=1}{\overset{k}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right)+\underset{i=k+1}{\overset{T+1}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLevel}[i-1\left]\right);$

Wherein, k (k<T+1) represents that rising turns the flex point of decline state;

4th computing unit, turn the grate-layer material consumption of propradation for calculating to decline, computing formula is:

$\mathrm{AMConsume}\left(n\right)=\underset{i=2}{\overset{k}{\mathrm{\&Sigma;}}}\left(\mathrm{MLevel}\right[i]-\mathrm{MLevel}[i-1\left]\right)+\underset{i=k+1}{\overset{T}{\mathrm{\&Sigma;}}}(C_s\&CenterDot;\mathrm{SSpeed}[i\left]\right);$

Wherein, k (k<T+1) represents that decline turns the flex point of propradation.

14. 1 kinds of hearth layer for sintering thickness measurement mechanisms, is characterized in that, comprise the hearth layer for sintering consumption measurement mechanism described in claim 10-13 and thickness computing unit, and thickness computing unit is used for average grate-layer material thickness in computation period T.

15. 1 kinds of hearth layer for sintering layer thickness control devices, is characterized in that, comprising:

Hearth layer for sintering consumption measurement mechanism described in claim 10-13, for obtaining grate-layer material consumption in cycle T;

Thickness computing unit, for grate-layer material thickness average in computation period T;

Thickness judging unit, for judging the relation between described grate-layer material thickness and setting value, and;

First control module, for the absolute value of the difference when described hearth layer for sintering thickness and setting value, is less than 1% of the corresponding flow of valve maximum opening, then controls shop fixtures bin blanking valve of electric valve aperture constant;

Second control module, for being greater than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening when described hearth layer for sintering thickness, then control shop fixtures bin blanking valve of electric valve aperture is turned down;

3rd control module, for being less than setting value and described hearth layer for sintering thickness and the absolute value of the difference of setting value are greater than 1% of the corresponding flow of valve maximum opening when described hearth layer for sintering thickness, then control shop fixtures bin blanking valve of electric valve aperture tunes up.

16. a kind of hearth layer for sintering layer thickness control devices according to claim 15, it is characterized in that, the second described control module, comprising: the first coarse adjustment unit and the first fine-adjusting unit;

If first coarse adjustment unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation;

If first fine-adjusting unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.

17. a kind of hearth layer for sintering layer thickness control devices according to claim 15, it is characterized in that, the 3rd described control module, comprising: the second coarse adjustment unit and the second fine-adjusting unit;

If second coarse adjustment unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being greater than 5% of the corresponding flow of valve maximum opening, is that 5% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation;

If second fine-adjusting unit, the absolute value of the difference for described hearth layer for sintering thickness and setting value, when being less than 5% of the corresponding flow of valve maximum opening, is that 1% control shop fixtures bin blanking valve of electric valve aperture tunes up according to the amplitude of accommodation.