CN102712964B - Method and device for controlling layer thickness of sintering starting material for sintering machine - Google Patents
Method and device for controlling layer thickness of sintering starting material for sintering machine Download PDFInfo
- Publication number
- CN102712964B CN102712964B CN201180006937.4A CN201180006937A CN102712964B CN 102712964 B CN102712964 B CN 102712964B CN 201180006937 A CN201180006937 A CN 201180006937A CN 102712964 B CN102712964 B CN 102712964B
- Authority
- CN
- China
- Prior art keywords
- raw materials
- bed thickness
- ignition furnace
- sintering
- gatage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
- C22B1/205—Sintering; Agglomerating in sintering machines with movable grates regulation of the sintering process
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/06—Endless-strand sintering machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Disclosed is a method for controlling the layer thickness of a sintering starting material for a sintering machine, which properly controls the layer thickness of the sintering starting material on the entry side of the sintering machine. The pre- and post-ignition furnace layer thickness on the ignition furnace entry side and the ignition furnace exit side for the sintering starting material upon a palette is detected while the palette conveyance speed of the aforementioned palette and the feeder rotation speed of a drum feeder are detected, and a gate opening command for a split gate is obtained on the basis of: a gate opening reference value for the aforementioned split gate, which was obtained from the aforementioned ignition furnace entry-side layer thickness, a first opening correction value based on the aforementioned palette conveyance speed and the aforementioned feeder rotation speed, and a second opening correction value based on the amount of decrease from the size of the sintering starting material layer at the initiation of ignition and absorption, which was obtained from the aforementioned ignition furnace entry-side layer thickness and the aforementioned ignition furnace exit-side layer thickness.
Description
Technical field
The present invention relates to fire raw materials for sintering layer thickness control method and the device that iron ore generates the sinter machine of agglomerate.
Background technology
In sintering factory, use rotating cylinder material feeder, the raw materials for sintering such as iron ore, coke breeze carbon, Wingdale are packed on the pallet of sinter machine, with ignition furnace, this raw materials for sintering is lighted a fire, with main exhaust fan, from the bellows below pallet, attract and generate agglomerate.Discharge portion at the hopper of the storage raw materials for sintering providing to rotating cylinder material feeder, be provided with divided on sinter machine width and can individually regulate the gate of cutting apart of each gatage, by regulating this, cut apart the gatage of gate, intensity, the granularity of generated agglomerate are reached evenly, carry out charging feedstock layer thickness control.
Control as this raw materials for sintering bed thickness, for example known have a Dwight-Lloyd sintering machine (for example pack layer thickness control method and device into, with reference to patent documentation 1), its control method is as follows: at the detector of bed thickness of the right on configuration detection raw materials for sintering of cut-off plate, when sinter machine starts and during the packing bed thickness into and surpass certain Layer thickness of raw materials for sintering, the instruction of the rotating cylinder material feeder rotating speed pattern generating unit based on pattern list when abnormal from the interior pattern list that when starting be housed and bed thickness, the rotating speed of the rotating cylinder material feeder of discharging raw materials for sintering is controlled in operation, be disposed at the gatage of discharge use of the discharge portion of rotating cylinder material feeder, so that pack the thickness that bed thickness becomes regulation into.
Prior art
Patent documentation
Patent documentation 1: Japanese kokai publication hei 3-243725 communique
Brief summary of the invention
Invent problem to be solved
But, in the conventional example of recording at described patent documentation 1, side in face of the cut-off plate of the upstream side of ignition furnace, with detector, detect the bed thickness that packs into of raw materials for sintering on the pallet be formed at sinter machine, and the bed thickness that packs into based on detecting, the thickness of layer thickness control in regulation will be packed into, therefore, there is following open question: the raw materials for sintering that has passed through to detect the detector that packs bed thickness into is lighted a fire, while being attracted by main exhaust fan, if the density of the raw materials for sintering being loaded into is little, even if it is certain to pack bed thickness into, only the level of some declines, therefore the not talkative bed thickness that packs into is for certain.And, when the transfer rate of the rotating speed of rotating cylinder material feeder as raw material load facility and the pallet of sinter machine changes, also there is the open question that postpones to reach target bed thickness.
Summary of the invention
Therefore, the present invention proposes in view of the open question of above-mentioned conventional example, its object is to provide raw materials for sintering layer thickness control method and the device of sinter machine, can be by the bed thickness that packs into before and after check point stove, suitably control sinter machine enter side raw materials for sintering pack bed thickness into.
In order to address the above problem, first aspect present invention provides a kind of raw materials for sintering layer thickness control method of sinter machine, this sinter machine is being stored the discharge portion of the hopper of raw materials for sintering, possess and pack the raw materials for sintering of discharging from this hopper into rotating cylinder material feeder pallet and divided and can individually regulate the gate of cutting apart of each gatage on sinter machine width, the raw materials for sintering layer thickness control method of this sinter machine is characterised in that, detect that ignition furnace before and after the ignition furnace of the raw materials for sintering on described pallet enters side bed thickness level and ignition furnace goes out side bed thickness level, detect the pallet transfer rate of described pallet and the material feeder speed of rotation of described rotating cylinder material feeder, according to enter the gatage benchmark value of cutting apart gate described in the control that side bed thickness level obtains based on described ignition furnace, the first aperture modified value of obtaining based on described pallet transfer rate and described material feeder speed of rotation, the second aperture modified value that the volume reduction of the raw materials for sintering layer when being entered side bed thickness level and described ignition furnace by described ignition furnace and go out the igniting that side bed thickness level obtains and attract to start is obtained, obtain the gatage command value of cutting apart gate described in control.
The raw materials for sintering layer thickness control method of the sinter machine of second aspect present invention, it is characterized in that, by a plurality of ignition furnaces that keep predetermined distance configuration on the width at raw material bed thickness, entering side bed thickness water level gauge detects described ignition furnace and enters side bed thickness level, from level set value, deduct at described ignition furnace, to enter the value that ignition furnace that side detects enters side raw materials for sintering bed thickness level and be multiplied by the interval that described ignition furnace enters side bed thickness water level gauge, from the portion that packs into of described rotating cylinder material feeder to described ignition furnace, enter the distance of side bed thickness water level gauge and raw material volume density and calculate described gatage benchmark value.
The raw materials for sintering layer thickness control method of the sinter machine of third aspect present invention, is characterized in that, the volume reduction of raw materials for sintering layer when igniting and attraction start is multiplied by Intake Quantity to be affected corrected parameter and calculate described the second aperture modified value.
Fourth aspect present invention provides a kind of raw materials for sintering layer thickness control method of sinter machine, this sinter machine is being stored the discharge portion of the hopper of raw materials for sintering, possess and pack the raw materials for sintering of discharging from this hopper into rotating cylinder material feeder pallet and divided and can individually regulate the gate of cutting apart of each gatage on sinter machine width, the raw materials for sintering layer thickness control method of this sinter machine is characterised in that, detect that ignition furnace before and after the ignition furnace of the raw materials for sintering on described pallet enters side bed thickness level and ignition furnace goes out side bed thickness level, detect the pallet transfer rate of described pallet and the material feeder speed of rotation of described rotating cylinder material feeder, based on described ignition furnace, enter side bed thickness level, described pallet transfer rate and described material feeder speed of rotation obtain cut apart described in control gate consideration the basic gatage command value that changes of Intake Quantity, further the volume reduction of the raw materials for sintering layer when being entered side bed thickness level and described ignition furnace by described ignition furnace and go out the igniting that side bed thickness level obtains and attract to start and described pallet transfer rate and described material feeder speed of rotation are obtained gatage modified value, by basic gatage command value described in the correction of described gatage modified value, obtain gatage command value.
The raw materials for sintering layer thickness control method of the sinter machine of fifth aspect present invention, is characterized in that, carries out described ignition furnace enter the detection that side bed thickness level and ignition furnace go out side bed thickness level with laser ranger.
Sixth aspect present invention provides a kind of raw materials for sintering layer thickness control device of sinter machine, this sinter machine is being stored the discharge portion of the hopper of raw materials for sintering, possess and pack the raw materials for sintering of discharging from this hopper into rotating cylinder material feeder pallet and divided and can individually regulate the gate of cutting apart of each gatage on sinter machine width, the raw materials for sintering layer thickness control device of this sinter machine is characterised in that, possess: the ignition furnace of the ignition furnace front and back detection raw material bed thickness level of the raw materials for sintering on described pallet enters side bed thickness water level gauge and ignition furnace goes out side bed thickness water level gauge, detect the transfer rate detector of the pallet transfer rate of described pallet, detect the rotary speed detector of the material feeder speed of rotation of described rotating cylinder material feeder, based on described ignition furnace, enter side bed thickness level, described pallet transfer rate and described material feeder speed of rotation calculate cut apart described in control gate consideration the basic gatage command value operational part of the basic gatage command value that changes of Intake Quantity, the gatage modified value operational part that the volume reduction of the raw materials for sintering layer when being entered side bed thickness level and described ignition furnace by described ignition furnace and go out the igniting that side bed thickness level obtains and attract to start and described pallet transfer rate and described material feeder speed of rotation are calculated gatage modified value, based on described basic gatage command value and described gatage modified value, calculate the gatage command value operational part of gatage command value.
The raw materials for sintering layer thickness control device of the sinter machine of seventh aspect present invention, it is characterized in that, it is the laser ranger that check point stove enters side bed thickness level that described ignition furnace enters side bed thickness water level gauge, and it is the laser ranger that check point stove goes out side bed thickness level that ignition furnace goes out side bed thickness water level gauge.
The raw materials for sintering layer thickness control device of the sinter machine of eighth aspect present invention, is characterized in that, described laser ranger is included in a plurality of head-swinging type laser rangers that keep predetermined distance configuration on width.
Invention effect
According to the present invention, the gatage command value that packs bed thickness change into that can utilize the change of the reduction of raw materials for sintering bed thickness having considered igniting and having attracted while to start and the material feeder speed of rotation of pallet transfer rate and rotating cylinder material feeder to cause, suitably control the gatage cut apart gate, sinter machine can be entered thus to the layer thickness control of raw materials for sintering of side in target value.
Accompanying drawing explanation
Fig. 1 means that the sinter machine of an embodiment of the raw materials for sintering layer thickness control method of sinter machine of the present invention enters the stereographic map of side;
Fig. 2 means the skeleton diagram of an example of control device of the gatage of cutting apart gate of control chart 1;
Fig. 3 means other routine skeleton diagram of control device;
Fig. 4 means the front view that is applied to laser ranger of the present invention;
Fig. 5 means the explanatory view of the measuring principle of laser ranger, and Fig. 5 (a) means the figure from the situation of lower position projecting laser with laser ranger, and Fig. 5 (b) means the figure from the situation of higher position projecting laser with laser ranger;
Fig. 6 means that bed thickness detects the explanatory view of principle;
Fig. 7 means the figure of the bed thickness profile of width.
Embodiment
Below, based on accompanying drawing explanation one embodiment of the present invention.
Fig. 1 means that the raw materials for sintering of sinter machine packs the figure of portion into, and raw materials for sintering is carried to the direction of arrow of this figure by pallet 1.The width that is sinter machine by the direction setting intersecting with this direction of arrow.On pallet 1, from having the raw materials for sintering of hopper 2 discharges of raw materials for sintering, by rotating cylinder material feeder 3, packed into pallet 1, form raw materials for sintering and pack layer into.Discharge portion at hopper 2 is the portion that packs into of rotating cylinder material feeder 3, along the width of sinter machine, equally spaced disposes and amounts to seven and cut apart gate 4.
These gatages of cutting apart gate 4 are regulated by the actuator 5 individually arranging, these actuators 5 regulate the gatage of respectively cutting apart gate 4 according to the gatage command value from control device described later, can increase and decrease thus the output of the raw materials for sintering of controlling corresponding position.It should be noted that, in the discharge portion of rotating cylinder material feeder 3, dispose not shown cut-off plate.This cut-off plate is so-called formation plate, is used in the bed thickness direction of raw materials for sintering, remaining part being supplemented to not enough part so that bed thickness is even.
In the predetermined distance downstream side of the raw materials for sintering throughput direction of rotating cylinder material feeder 3, be provided with the ignition furnace 6 to raw materials for sintering igniting from top.In 6 pairs of raw materials for sintering igniting of this ignition furnace, and with not shown main exhaust fan, the bellows from pallet 1 attract, and start thus sintering circuit.
In the present embodiment, in the side that enters of this ignition furnace 6, from the upper surface of pallet 1 leave predetermined distance and detect amount to six to raw materials for sintering, pack the surperficial distance of layer into, detect thus into the horizontal Lv1 of side raw materials for sintering bed thickness.For example, on the width of sinter machine, equally spaced configure the ignition furnace being formed by ultrasonic range finder etc. and enter side bed thickness water level gauge 7, and in the side that goes out of ignition furnace 6, on the width of sinter machine equally spaced also configuration and ignition furnace enter side bed thickness water level gauge 7 same go out side bed thickness water level gauge 8, this go out side bed thickness water level gauge 8 from the upper surface of pallet 1 leave predetermined distance and detect amount to six to raw materials for sintering, pack the surperficial distance of layer into, detect thus the horizontal Lv2 of side raw materials for sintering bed thickness.
In addition, what as shown in Figure 2, with aforesaid ignition furnace, enter that side bed thickness water level gauge 7 detects enters the horizontal Lv1 of side raw materials for sintering bed thickness and goes out with ignition furnace the control device 11 that the horizontal Lv2 input control of side raw materials for sintering bed thickness is respectively cut apart the actuator 5 of gate 4 that goes out that side bed thickness water level gauge 8 detects.And, on control device 11, be connected with transfer rate detector 12 and rotary speed detector 13, the transfer rate that this transfer rate detector 12 detects sinter machine is pallet transfer rate Ps, this rotary speed detector 13 detects the material feeder speed of rotation Dd of rotating cylinder material feeder 3, and the pallet transfer rate Ps and the material feeder speed of rotation Dd that by these transfer rate detectors 12 and rotary speed detector 13, are detected input this control device 11.
This control device 11 based on be input to entering the horizontal Lv1 of side raw materials for sintering bed thickness, go out the horizontal Lv2 of side raw materials for sintering bed thickness, pallet transfer rate Ps and material feeder speed of rotation Dd carries out the computing of following formula (1), calculate the gatage command value Go(t after second for the t of actuator 5 of cutting apart gate 4).
Go（t）＝α［（S－Lv1（t））L1·L2·Ds＋a｛β（1－1/Ps）
－γ（1－Dd）｝＋b（Lv1（t）－Lv2（t＋T））L3·L4·Ds
＋a｛β（1－1/Ps）－γ（1－Dd）｝］……（1）
α: quality-gatage transformation coeffcient (%/kg)
S: level set value (m)
Lv1(t): the level determination value (m) of t after second
L1: each ignition furnace before ignition furnace enters side bed thickness water level gauge interval (m)
L2: enter the distance (m) of side bed thickness water level gauge to the ignition furnace arranging ignition furnace from packing portion into
Lv2(t+T): raw materials for sintering bed thickness level when igniting and attraction start
L3: each water level gauge interval (m) arranging after ignition furnace
L4: the ignition furnace arranging from ignition furnace enters side bed thickness water level gauge and goes out the distance (m) of side bed thickness water level gauge to the ignition furnace arranging after ignition furnace
B: Intake Quantity affects corrected parameter
Ds: raw material volume density (kg/m3)
Ps: pallet transfer rate (m/s)
Dd: rotating cylinder material feeder speed of rotation (min-1)
A: weighting parameters
β: aperture transformation coeffcient (%/m/s)
γ: aperture transformation coeffcient (%/m/s)
In [] on the right of this formula (1) first be according to ignition furnace, enter ignition furnace that side bed thickness water level gauge 7 detects enter side light a fire and attract to start before the horizontal Lv1 of raw materials for sintering bed thickness and the raw materials for sintering layer quality error obtained of the difference of level set value S, the raw materials for sintering layer quality error that this ignition furnace enters side becomes the gatage benchmark value of cutting apart gate 4.
In addition, second and the 4th in [] on the right of formula (1) revises based on pallet transfer rate Ps and material feeder speed of rotation Dd the first aperture modified value that packs the impact that the Intake Quantity of the raw materials for sintering on pallet 1 changes into.Second is to have considered benchmark aperture Gb(t) item of the sinter machine speed in deriving, the impact of rotating cylinder material feeder rotating speed, the 4th is to have considered correction aperture Ga(t) item of the sinter machine speed in derivation, the impact of rotating cylinder chute rotating speed.
In addition, in [] on the right of formula (1) the 3rd be with ignition furnace, enter ignition furnace that side bed thickness water level gauge 7 detects enter side light a fire and attract to start before the horizontal Lv1 of raw materials for sintering bed thickness and the difference of the horizontal Lv2 of raw materials for sintering bed thickness when going out ignition furnace that side bed thickness water level gauge 8 detects with ignition furnace and going out side and light a fire and attract to start on, be multiplied by igniting and attract to start front raw materials for sintering volume density Ds and the raw materials for sintering layer quality error of raw material volume density Ds ' when long-pending value that Intake Quantity affects corrected parameter b is lighted a fire and attracts to start, this ignition furnace goes out side raw materials for sintering layer quality error becomes the second aperture modified value of cutting apart gate 4.That is,, because of the igniting of raw materials for sintering and the density increase of attraction beginning raw materials for sintering, volume reduces thereupon, therefore, obtains this volume reduction, correspondingly revises gatage benchmark value with this volume reduction.
And, the gatage command value Go(t based on calculating according to above-mentioned formula (1)) control the actuator 5 of respectively cutting apart gate 4, can suitably be controlled at the raw materials for sintering that the portion of packing on pallet 1 is loaded into thus.
; the raw materials for sintering layer thickness control method of the sinter machine of present embodiment, according to enter the gatage benchmark value of cutting apart gate 4 of the horizontal Lv1 of side bed thickness, the first aperture modified value based on pallet transfer rate and described material feeder speed of rotation, the second aperture modified value based on by enter the volume reduction of the horizontal Lv1 of raw materials for sintering bed thickness that side detects and the raw materials for sintering layer when ignition furnace goes out the igniting that the horizontal Lv2 of raw materials for sintering bed thickness that side detects obtains and attracts to start at ignition furnace based on ignition furnace, is calculated for the gatage command value Go(t of cutting apart gate 4).
Therefore, the gatage command value that packs bed thickness change into that the change of the reduction of raw materials for sintering layer having considered igniting and having attracted while to start and the material feeder speed of rotation of pallet transfer rate and rotating cylinder material feeder causes can be set, and this gatage command value suitably can be fed back to the actuator 5 of cutting apart gate 4, thus, can suitably control the bed thickness that sinter machine enters the raw materials for sintering of side.
In addition, it is a plurality of that the bed thickness water level gauge that detects side raw materials for sintering bed thickness level keeps predetermined distance to dispose on the width of raw material bed thickness, described gatage benchmark value is deducting from level set value at described ignition furnace, to enter the ignition furnace that side detects and enter the value of side raw materials for sintering bed thickness level, be multiplied by described water level gauge interval, the distance from the portion that packs into of described rotating cylinder material feeder to water level gauge and raw material volume density and calculate, therefore, can correctly obtain the raw materials for sintering layer quality error that ignition furnace enters side.
And being multiplied by Intake Quantity in the volume reduction of the raw materials for sintering layer when igniting and attraction beginning affects parameter and calculates the second aperture modified value, therefore, the reduction of the raw materials for sintering layer when can suitably feed back igniting and attracting to start as quality.
And, due to respectively at basic gatage command value Gb(t) and gatage modified value Ga(t) the upper change that is added the material feeder speed of rotation of having considered pallet transfer rate and rotating cylinder material feeder cause pack the first aperture modified value that bed thickness changes into, therefore do not packed into the impact of bed thickness change, can correctly be controlled the raw materials for sintering bed thickness while packing into.
Should be mentioned that in passing, only according to entering the horizontal Lv1 of side raw materials for sintering bed thickness that enters that side bed thickness water level gauge 7 detects and control the actuator 5 of respectively cutting apart gate 4 with being disposed at ignition furnace that ignition furnace 6 enters side, adjusting is cut apart in the situation of gatage of gate 4, based on following formula (2), calculates gatage command value Go ' (t).
Go′（t）＝α（S－Lv1（t））L1·L2·Ds ……（2）
In this formula (2), owing to entering the deviation that enters the horizontal Lv1 of side raw materials for sintering bed thickness and level set value S and the raw material volume density Ds of side according to ignition furnace 6, calculate gatage command value Go ' (t), therefore, at pallet transfer rate Ps and material feeder speed of rotation Dd be certain in the situation that, can make raw materials for sintering bed thickness level that ignition furnace 6 enters side in necessarily, but, in the situation that changing, at least one party in pallet transfer rate Ps and material feeder speed of rotation Dd makes to pack into the raw materials for sintering Intake Quantity change on pallet 1, the horizontal Lv1 of side raw materials for sintering bed thickness that enters that ignition furnace 6 can not be entered to side is controlled at necessarily.
Therefore, (3) according to the following equation, based on pallet transfer rate Ps and material feeder speed of rotation Dd, " what (t), can make thus that ignition furnace 6 enters side enters the horizontal Lv1 of side raw materials for sintering bed thickness in necessarily to calculate the gatage command value Go of the Intake Quantity change of the raw materials for sintering of having considered to pack into pallet 1.
Go″（t）＝α（S－Lv1（t））L1·L2·Ds
＋a｛β（1－1/Ps）－γ（1－Dd）｝……（3）
According to this formula (3), what can make that ignition furnace 6 enters side enters the horizontal Lv1 of side raw materials for sintering bed thickness in necessarily, but, owing to not considering to light a fire at 6 pairs of raw materials for sintering of ignition furnace, and from the downside of pallet 1, via not shown bellows, with main exhaust fan, attract and the variation that goes out side raw materials for sintering bed thickness level that ignition furnace 6 while starting sintering circuit goes out side, therefore, the variation of the raw materials for sintering bed thickness while starting along with sintering circuit, sintering time is different, and the sintering strength of agglomerate is brought to impact.
At this, in the present embodiment, owing to calculating for the gatage command value Go(t of cutting apart the actuator 5 of gate 4 according to aforesaid formula (1)), therefore, by what consider that ignition furnace 6 goes out side, go out the horizontal Lv2 of side raw materials for sintering bed thickness, raw materials for sintering bed thickness level when sintering circuit can be started is controlled as certain, and sintering time does not change, and the sintering strength of agglomerate can be maintained necessarily.And, owing to considering pallet transfer rate Ps and material feeder speed of rotation Dd, and considered to pack into the impact of Intake Quantity change of the raw materials for sintering of pallet 1, therefore, the raw materials for sintering bed thickness level in the time of can more suitably maintaining sintering circuit and start.
At this, for example as shown in Figure 2, control device 11 possesses: carry out the computing of first in [] of described formula (1) gatage benchmark value arithmetical circuit 21, carry out in [] of described formula (1) second and the 4th 's computing the first modified value arithmetical circuit 22, carry out the second modified value arithmetical circuit 23 of the ternary operation in [] of described formula (1).
Particularly, in gatage benchmark value arithmetical circuit 21, based on enter the horizontal Lv1 of side raw materials for sintering bed thickness that enters that side bed thickness water level gauge 7 detects with ignition furnace, carry out the computing of following formula (4), calculate represent by light a fire and attract to start before the horizontal Lv1 of raw materials for sintering bed thickness and the gatage benchmark value gb(t of the raw materials for sintering layer quality error obtained of the difference of level set value S).
gb（t）＝（S－Lv1（t））L1·L2·Ds……（4）
In addition, in the first modified value arithmetical circuit 22, based on pallet transfer rate Ps and material feeder speed of rotation Dd, carry out the computing of following formula (5), calculate the first aperture modified value ga1(t of the impact of the Intake Quantity of revising the raw materials for sintering that packs pallet 1 into).
ga1（t）＝a｛β（1－1/Ps）－γ（1－Dd）｝……（5）
And, in the second modified value arithmetical circuit 23, based on what enter with ignition furnace that side bed thickness water level gauge 7 detects, enter the horizontal Lv1 of side raw materials for sintering bed thickness and go out with ignition furnace the horizontal Lv2 of side raw materials for sintering bed thickness that goes out that side bed thickness water level gauge 8 detects to carry out the computing of following formula (6), calculate and represent that ignition furnace goes out the second aperture modified value ga2(t of side raw materials for sintering layer quality error).
ga2（t）＝b（Lv1（t）－Lv2（t＋T））L3·L4·Ds……（6）
In addition, control device 11 possesses totalizer 24, totalizer 25 and gate command value operational loop 26, wherein, totalizer 24 is by the gatage benchmark value gb(t from gatage benchmark value arithmetical circuit 21 output) and from the first aperture modified value ga1(t of the first modified value arithmetical circuit 22 outputs) be added and calculate basic gatage command value Gb(t), this totalizer 25 is by the second aperture modified value ga2(t from the second modified value arithmetical circuit 23 output) and from the first aperture modified value ga1(t of the first modified value arithmetical circuit 22 outputs) be added and calculate gatage modified value Ga(t), the output Gb(t of this gate command value arithmetical circuit 26 based on totalizer 24) and the output Ga(t of totalizer 25) calculate gatage command value Go(t).
At this, gate command value arithmetical circuit 26 carries out the computing of following formula (7), calculates gatage command value Go(t), the gatage command value Go(t based on calculating) control the actuator 5 of cutting apart gate 4, regulate the aperture of cutting apart gate 4.
Go（t）＝α（Gb（t）+Ga（t））……（7）
Like this, the raw materials for sintering layer thickness control method of the sinter machine of present embodiment according to based on ignition furnace, enter the horizontal Lv1 of side bed thickness for the gatage benchmark value of cutting apart gate 4, the first aperture modified value based on pallet transfer rate and described material feeder speed of rotation, the second aperture modified value based on by enter the volume reduction of the horizontal Lv1 of raw materials for sintering bed thickness that side detects and the raw materials for sintering layer when ignition furnace goes out the igniting that the horizontal Lv2 of raw materials for sintering bed thickness that side detects obtains and attracts to start at ignition furnace, calculate for the gatage command value Go(t of cutting apart gate 4).
Therefore, the gatage command value that packs bed thickness change into that the change of the reduction of raw materials for sintering layer having considered igniting and having attracted while to start and the material feeder speed of rotation of pallet transfer rate and rotating cylinder material feeder causes can be set, can suitably feed back this gatage command value to the actuator 5 of cutting apart gate 4, thus, can suitably control the bed thickness that sinter machine enters the raw materials for sintering of side.
In addition, owing to detecting the ignition furnace of side raw materials for sintering bed thickness level, enter side bed thickness water level gauge 7 on the width of raw material bed thickness, to keep predetermined distance to dispose a plurality of, described gatage benchmark value is deducting from level set value at described ignition furnace, to enter the ignition furnace that side detects and enter the value of side raw materials for sintering bed thickness level, be multiplied by described water level gauge interval, the distance from the portion that packs into of described rotating cylinder material feeder to water level gauge and raw material volume density and calculate, therefore, can correctly obtain the raw materials for sintering layer quality error that a stove enters side.
In addition, in the volume reduction of the raw materials for sintering layer while attract starting owing to fighting at point, being multiplied by Intake Quantity affect parameter and calculates the second aperture modified value, therefore, and the reduction of the raw materials for sintering layer when can suitably feed back igniting and attracting beginning as quality.
And, respectively at basic gatage command value Gb(t) and gatage modified value Ga(t) the upper change that is added the material feeder speed of rotation of having considered pallet transfer rate and rotating cylinder material feeder cause pack the first aperture modified value that bed thickness changes into, therefore do not packed into the impact of bed thickness change, can correctly be controlled the raw materials for sintering bed thickness while packing into.
It should be noted that, in the above-described embodiment, illustrated by gate benchmark value arithmetical circuit 25, the first modified value arithmetical circuit 22, the second modified value arithmetical circuit 23, totalizer 24,25 and gate command value arithmetical circuit 26 form the situation of control device 11, but be not limited to this, also can form as shown in Figure 3.; aforesaid gate benchmark value arithmetical circuit 21, the first modified value arithmetical circuit 22 and totalizer 24 is integrated and form basic gatage command value arithmetical circuit 31; and the second modified value arithmetical circuit 23, the first modified value arithmetical circuit 22 and totalizer 25 is integrated and form gatage modified value arithmetical circuit 32, to gate command value arithmetical circuit 26, supply with from the basic gatage command value Gb(t of basic gatage command value arithmetical circuit 31 outputs) and from the gatage modified value Ga(t of gatage modified value arithmetical circuit 32 outputs).
In this situation, in basic gatage command value arithmetical circuit 31, based on entering the horizontal Lv1 of side raw materials for sintering bed thickness, pallet transfer rate Ps and material feeder speed of rotation Dd, carry out the computing of following formula (8), calculate the basic gatage command value Gb(t that has considered that Intake Quantity changes).
Gb（t）＝（S－Lv1（t））L1·L2·Ds
＋a｛β（1－1/Ps）－γ（1－Dd）｝……（8）
In gatage modified value arithmetical circuit 32, based on entering the horizontal Lv1 of side raw materials for sintering bed thickness, go out the horizontal Lv2 of side raw materials for sintering bed thickness, pallet transfer rate Ps and material feeder speed of rotation Dd carries out the computing of following formula (9), calculate the gatage modified value Ga(t of t after second).
Ga（t）＝b（Lv1（t）－Lv2（t＋T））L3·L4·Ds
＋a｛β（1－1/Ps）－γ（1－Dd）……（9）
In addition, in the above-described embodiment, illustrated as entering side bed thickness water level gauge 7 and going out side bed thickness water level gauge 8 and adopted the situation of ultrasonic range finder, but be not limited to this, also can adopt laser ranger LD1～LD5 as shown in Figure 4.
At this, laser ranger LD1～LD5 carries out head-swinging type scanning at point of fixity.So-called rock type, be to instigate the laser ranger that is arranged at fixed position to rotate in width cross section, Yi Bian change the launching position of laser, Yi Bian the mode scanning is on line called head-swinging type laser ranger by the laser ranger of this mode.This head-swinging type laser ranger only rotates in fixed position, therefore little to the load of device drivetrain, highly beneficial aspect weather resistance.In addition, the interval that also can cut apart width makes a plurality of laser rangers tuning, at point of fixity, carries out head-swinging type scanning.In the situation that a laser ranger is shaken the head, for its whole width to sinter machine pallet 1 is scanned, laser ranger need to be arranged to the high position of sinter machine top.Its reason is: if from lower position projecting laser, the angle on the formed inclined-plane of charging feedstock produce laser according to less than dash area, thereby produce not measurable position.
Suffer from Fig. 5 this principle is described.Fig. 5 (a) is the state from lower position projecting laser with laser ranger LD.The slope of repose of raw materials for sintering 42 is maximum 50 ° of left and right, and therefore, in this case, the position of blacking becomes not measurable region 43.In order to eliminate not measurable region 43, for example, in the scope of the angle of depression that need to be more than slope of repose (, 60 ° of above angles of depression), measure, therefore, as shown in Fig. 5 (b), laser ranger LD need to be arranged on to high position.Particularly, because the chance on the inclined-plane at the side wall portion raw material formation angle of elevation is many, therefore, in order to obtain the angle of depression of large laser, therefore, preferably laser ranger LD is configured in to the near position of just going up of sidewall.
Aspect equipment, if be difficult to be arranged on this high position, the width interval of sinter machine pallet 1 is cut apart, with many laser ranger LD, carry out head-swinging type scanning, just can further reduce setting position.Apart from the height of the laser ranger LD of raw materials for sintering face, in order to get the large laser angle of depression, and according to the restriction of the measurement range of laser ranger LD, be preferably arranged on 0.8～4.5m, be further preferably arranged on 0.8～2m.With many scanning in the situation that, passing on of harmony laser ranger LD and the whole widths of single pass are interval at short notice, can make thus sinter machine pallet is advanced in sweep time distance for extremely short, in fact can ignore the deviation that pallet is advanced and caused.Required time of single pass is short in well, in reality preferably below 10 seconds.
Utilizing laser ranger LD to measure in distance, according to the catoptrical intrusion angle change detection distance of the detection with respect to projection light, therefore, if laser ranger is arranged at from the lower position close to raw material surface, detect significantly and invade angle variation, so the angle causing apart from subtle change easily detected, change the effect of the range finding precision that is improved.
Therefore, as shown in Figure 4, the top position broad ways that packs layer at sinter machine pallet 1 extends configuration frame 45, a side of the front-back of this framework 45 for example below on, on the laser head LH1～LH5 as rotating mechanism, laser ranger LD1～LD5 is installed, with stadimeter control device 47, in the angular range of regulation, laser head LH1～LH5 is synchronously passed on.
This predetermined angular scope is chosen to be, in laser ranger LDj(j=1～4 of adjacency) and LDj+1 in, overlapping in packing on layer of their mid-ways.Like this, when a plurality of laser ranger LD1～LD5 head-swinging types are passed on, laser ranger LD1～LD5 only rotates in fixed position, therefore, little for the load of device drivetrain, highly beneficial aspect weather resistance.And, by synchronously being rotated, a plurality of laser ranger LD1～LD5 carry out head-swinging type scanning, utilize single pass just can measure to pack into the bed thickness of universe of the width of layer.In this case, in the laser ranger LD1～LD5 of adjacency, for example, by making the angle of all rotations starting position consistent with the maximum angle of slewing area one side, prevent that reliably the laser penetrating from a laser ranger of adjacency from inciding another laser ranger of adjacency.
In the situation that using these laser rangers LD1～LD5, due to the convergency high according to it, can be by determination part locator qualification on the point of several mm, therefore can position is specific and measure.By scanning along the width of sinter machine pallet 1 with these laser rangers LD1～LD5, measure the bed thickness pack layer into, can be produced on width each correct position the profile of the bed thickness measured.
Like this, in the situation that carrying out head-swinging type scanning with a plurality of laser ranger LD1～LD5, apart from the height that packs layer 9 upper surface in order to get the angle of depression of large laser, and according to the restriction of the measurement range of stadimeter, preferably be arranged on 0.8～4.5m, be further preferably arranged on 0.8～2m.
In addition, with in many situations about scanning, by making the rotational action harmony of laser ranger, at short notice single pass is carried out in whole intervals, can make pallet travel distance in sweep time for extremely short, in fact can ignore the deviation that pallet is advanced and caused.Required time of single pass is short in well, is preferably below 10 seconds in reality.
At this, to aforesaid stadimeter control device 47, supply with distance L 1～L5 of detecting with laser ranger LD1～LD5 and with respect to the angle of rotation θ 1～θ 5 of vertical line that passes through the center of rotation of laser head LH1～LH5 now, and in this stadimeter control device 47, carry out the computing of following formula (10) and formula (11), calculate Wk(k=1～5, measuring position of width) and raw material fill thick Hk.
Wk＝WBk＋Lk·sinθk……（10）
Hk＝HL-Lk·cosθk……（11）
At this, the fulcrum that WBk is each laser ranger LDk is apart from the distance that becomes one end of reference point on width, the measuring distance of Lk for measuring with each laser ranger LDk, θ k is the elevation angle with respect to the vertical line of the center of rotation by each laser head LHk, the aforementioned reference point side of take is negative value, take reference point opposition side as on the occasion of.And HL is that the measurement initial point of laser ranger LD1～LD5 is the height of upper surface of the distance of rotate center sinter machine pallet 1 of laser head LH1～LH5.
And, in stadimeter control device 47, using the measuring position Wk calculating and raw material bed thickness Hk as a pair of storage part that is stored in, make the profile of the bed thickness of width.At this moment, for the surface location that packs layer into overlapping in the laser ranger LD1～LD5 in adjacency, the width position Wk of the side with low uncertainty in the width position of Selective determination and last time width position and raw material bed thickness Hk.
, as shown in Figure 6, mid-way at laser ranger LDj and LDj+1, in laser ranger LDl side, there is steep scarp, and in the situation that the laser ranger LDj+1 side of opposition side exists the protuberance 48 with the scarp of relaxing, laser ranger LDj can measure whole distance at the top that comprises protuberance 48, but laser ranger LDj+1 can not catch steep scarp in the part that surpasses the top of protuberance 48, measure the distance of par far away, thus at width position Wj+1(n) and raw material bed thickness Hj+1(n) the large error of upper generation, with respect to width position wj+1(n-1 last time) anxious increasing of variation delta W.Therefore, select the width position Wj(n of the observed value of the laser ranger LDj that variation delta W based on width position is few) and raw material bed thickness Hj(n).
Like this, each specified time (for example, 10 minutes) the bed thickness Hk that measures the width that packs layer into shown in Fig. 7 profile on width, the profile of the bed thickness Hk measuring on width is stored in the storage part 47a being arranged in stadimeter control device 47 in order.
Then, the profile according to the bed thickness Hk that is stored in storage part 47a on width, calculates the mean value in the width region corresponding with respectively cutting apart gate 4, using these mean values as the horizontal Lv1 of bed thickness and Lv2 to control device 11, supply with.
Nomenclature
1: pallet, 2: hopper, 3: rotating cylinder material feeder, 4: cut apart gate, 5: actuator, 6: ignition furnace, 7: enter side bed thickness water level gauge, 8: go out side bed thickness water level gauge, 11: control device, 12: pallet transfer rate detector, 13: material feeder rotary speed detector, 21: gatage benchmark value arithmetical circuit, 22: the first modified value arithmetical circuits, 23: the second modified value arithmetical circuits, 24, 25: totalizer, 26: gate command value arithmetical circuit, 31: basic gatage command value arithmetical circuit, 32: gatage modified value arithmetical circuit, LD1～LD5: laser ranger, LH1～LH5: laser head, 45: framework, 47: stadimeter control device, 47a: storage part.
Claims (10)
1. the raw materials for sintering layer thickness control method of a sinter machine, this sinter machine is being stored the discharge portion of the hopper of raw materials for sintering, possess and pack the raw materials for sintering of discharging from this hopper into rotating cylinder material feeder pallet and divided and can individually regulate the gate of cutting apart of each gatage on sinter machine width, the raw materials for sintering layer thickness control method of this sinter machine is characterised in that
Detect that ignition furnace before and after the ignition furnace of the raw materials for sintering on described pallet enters side bed thickness level and ignition furnace goes out side bed thickness level,
Detect the pallet transfer rate of described pallet and the material feeder speed of rotation of described rotating cylinder material feeder,
The second aperture modified value of obtaining according to the volume reduction that enters the gatage benchmark value of cutting apart gate described in the control that side bed thickness level obtains, the first aperture modified value of obtaining based on described pallet transfer rate and described material feeder speed of rotation, raw materials for sintering layer when being entered side bed thickness level and described ignition furnace by described ignition furnace and go out the igniting that side bed thickness level obtains and attract to start based on described ignition furnace, obtains the gatage command value of cutting apart gate described in control.
2. the raw materials for sintering layer thickness control method of sinter machine as claimed in claim 1, is characterized in that,
By a plurality of ignition furnaces that keep predetermined distance configuration on the width at raw material bed thickness, enter side bed thickness water level gauge and detect described ignition furnace and enter side bed thickness level,
From level set value, deduct at described ignition furnace, to enter value that ignition furnace that side detects enters side raw materials for sintering bed thickness level and be multiplied by described ignition furnace and enter the interval of side bed thickness water level gauge, the distance that enters side bed thickness water level gauge from the portion that packs into of described rotating cylinder material feeder to described ignition furnace and raw material volume density and calculate described gatage benchmark value.
3. the raw materials for sintering layer thickness control method of sinter machine as claimed in claim 1 or 2, is characterized in that,
The volume reduction of raw materials for sintering layer when igniting and attraction start is multiplied by Intake Quantity to be affected corrected parameter and calculates described the second aperture modified value.
4. the raw materials for sintering layer thickness control method of sinter machine as claimed in claim 1 or 2, is characterized in that,
With laser ranger, carry out described ignition furnace and enter the detection that side bed thickness level and ignition furnace go out side bed thickness level.
5. the raw materials for sintering layer thickness control method of sinter machine as claimed in claim 3, is characterized in that,
With laser ranger, carry out described ignition furnace and enter the detection that side bed thickness level and ignition furnace go out side bed thickness level.
6. the raw materials for sintering layer thickness control method of a sinter machine, this sinter machine is being stored the discharge portion of the hopper of raw materials for sintering, possess and pack the raw materials for sintering of discharging from this hopper into rotating cylinder material feeder pallet and divided and can individually regulate the gate of cutting apart of each gatage on sinter machine width, the raw materials for sintering layer thickness control method of this sinter machine is characterised in that
Detect that ignition furnace before and after the ignition furnace of the raw materials for sintering on described pallet enters side bed thickness level and ignition furnace goes out side bed thickness level,
Detect the pallet transfer rate of described pallet and the material feeder speed of rotation of described rotating cylinder material feeder,
Based on described ignition furnace, enter side bed thickness level, described pallet transfer rate and described material feeder speed of rotation obtain cut apart described in control gate consideration the basic gatage command value that changes of Intake Quantity, further the volume reduction of the raw materials for sintering layer when being entered side bed thickness level and described ignition furnace by described ignition furnace and go out the igniting that side bed thickness level obtains and attract to start and described pallet transfer rate and described material feeder speed of rotation are obtained gatage modified value, by basic gatage command value described in the correction of described gatage modified value, obtain gatage command value.
7. the raw materials for sintering layer thickness control method of sinter machine as claimed in claim 6, is characterized in that,
With laser ranger, carry out described ignition furnace and enter the detection that side bed thickness level and ignition furnace go out side bed thickness level.
8. the raw materials for sintering layer thickness control device of a sinter machine, this sinter machine is being stored the discharge portion of the hopper of raw materials for sintering, possess and pack the raw materials for sintering of discharging from this hopper into rotating cylinder material feeder pallet and divided and can individually regulate the gate of cutting apart of each gatage on sinter machine width, the raw materials for sintering layer thickness control device of this sinter machine is characterised in that to possess:
The ignition furnace of the ignition furnace front and back detection raw material bed thickness level of the raw materials for sintering on described pallet enters side bed thickness water level gauge and ignition furnace goes out side bed thickness water level gauge,
Detect the transfer rate detector of the pallet transfer rate of described pallet,
Detect the rotary speed detector of the material feeder speed of rotation of described rotating cylinder material feeder,
Based on described ignition furnace enter side bed thickness level, described pallet transfer rate and described material feeder speed of rotation calculate cut apart described in control gate consideration the basic gatage command value operational part of the basic gatage command value that changes of Intake Quantity,
The gatage modified value operational part that the volume reduction of the raw materials for sintering layer when being entered side bed thickness level and described ignition furnace by described ignition furnace and go out the igniting that side bed thickness level obtains and attract to start and described pallet transfer rate and described material feeder speed of rotation are calculated gatage modified value
Based on described basic gatage command value and described gatage modified value, calculate the gatage command value operational part of gatage command value.
9. the raw materials for sintering layer thickness control device of sinter machine as claimed in claim 8, is characterized in that,
It is the laser ranger that check point stove enters side bed thickness level that described ignition furnace enters side bed thickness water level gauge,
It is the laser ranger that check point stove goes out side bed thickness level that ignition furnace goes out side bed thickness water level gauge.
10. the raw materials for sintering layer thickness control device of sinter machine as claimed in claim 9, is characterized in that, described laser ranger is included in a plurality of head-swinging type laser rangers that keep predetermined distance configuration on width.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010019025 | 2010-01-29 | ||
| JP2010-019025 | 2010-01-29 | ||
| JP2010-278821 | 2010-12-15 | ||
| JP2010278821A JP4840530B2 (en) | 2010-01-29 | 2010-12-15 | Sintering raw material layer thickness control method and apparatus for sintering machine |
| PCT/JP2011/052190 WO2011093518A1 (en) | 2010-01-29 | 2011-01-27 | Method and device for controlling layer thickness of sintering starting material for sintering machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102712964A CN102712964A (en) | 2012-10-03 |
| CN102712964B true CN102712964B (en) | 2014-05-07 |
Family
ID=44319493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180006937.4A Active CN102712964B (en) | 2010-01-29 | 2011-01-27 | Method and device for controlling layer thickness of sintering starting material for sintering machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4840530B2 (en) |
| KR (1) | KR101440701B1 (en) |
| CN (1) | CN102712964B (en) |
| WO (1) | WO2011093518A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5703755B2 (en) * | 2011-01-05 | 2015-04-22 | Ｊｆｅスチール株式会社 | Sintering raw material layer thickness control method and apparatus for sintering machine |
| CN106940138B (en) * | 2016-01-04 | 2019-01-25 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection device and method |
| CN106940176B (en) * | 2016-01-04 | 2019-03-01 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection device and method |
| CN106086395B (en) * | 2016-08-25 | 2018-02-09 | 中冶北方（大连）工程技术有限公司 | A kind of pelletizing cloth intelligence control system and method |
| CN113295001B (en) * | 2020-09-28 | 2023-06-23 | 中冶长天国际工程有限责任公司 | System, method and device for detecting thickness of material layer of trolley of sintering machine |
| CN113671921B (en) * | 2021-08-24 | 2024-01-30 | 马鞍山钢铁股份有限公司 | Serialized sintering parameter control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262770A (en) * | 1962-05-11 | 1966-07-26 | Yawata Iron & Steel Co | Method of controlling the thickness of a charged raw material layer in dwight-lloyd sintering machine |
| JP3243725B2 (en) * | 1992-07-29 | 2002-01-07 | 清水建設株式会社 | Multistory building |
| CN1776338A (en) * | 2005-11-24 | 2006-05-24 | 广东韶钢松山股份有限公司 | Sintering automatic distributing method |
| CN201203351Y (en) * | 2008-02-26 | 2009-03-04 | 北京中冶博瑞特科技有限公司 | Automatic distributing control system of sintering machine |
| CN201297849Y (en) * | 2008-11-12 | 2009-08-26 | 山西太钢不锈钢股份有限公司 | Automatic distribution control device of a sintering machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116204A (en) * | 1974-07-31 | 1976-02-09 | Nippon Steel Corp | RENZOKUSHIKISHOKETSUKINO GENRYOSOATSUSEIGYOSOCHI |
| JPS5910496B2 (en) * | 1977-04-28 | 1984-03-09 | 新日本製鐵株式会社 | Method for detecting sintered layer depth profile of sintered raw material layer |
| JPS5938289B2 (en) * | 1977-06-23 | 1984-09-14 | 住友金属工業株式会社 | Method for producing sintered ore |
| JPS5547330A (en) * | 1978-09-30 | 1980-04-03 | Sumitomo Metal Ind Ltd | Controlling method for permeabilty of charging material in sintering apparatus |
| JPS59197529A (en) * | 1983-04-20 | 1984-11-09 | Kawasaki Steel Corp | Control of layer thickness distribution of sintering stock material |
| JPH0774398B2 (en) * | 1990-02-20 | 1995-08-09 | 新日本製鐵株式会社 | Method and apparatus for controlling charging layer thickness of Dwightroid type sintering machine |
| JPH055589A (en) * | 1991-06-26 | 1993-01-14 | Sumitomo Metal Ind Ltd | Operating method for sintering machine |
-
2010
- 2010-12-15 JP JP2010278821A patent/JP4840530B2/en active Active
-
2011
- 2011-01-27 CN CN201180006937.4A patent/CN102712964B/en active Active
- 2011-01-27 KR KR1020127018244A patent/KR101440701B1/en active IP Right Grant
- 2011-01-27 WO PCT/JP2011/052190 patent/WO2011093518A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262770A (en) * | 1962-05-11 | 1966-07-26 | Yawata Iron & Steel Co | Method of controlling the thickness of a charged raw material layer in dwight-lloyd sintering machine |
| JP3243725B2 (en) * | 1992-07-29 | 2002-01-07 | 清水建設株式会社 | Multistory building |
| CN1776338A (en) * | 2005-11-24 | 2006-05-24 | 广东韶钢松山股份有限公司 | Sintering automatic distributing method |
| CN201203351Y (en) * | 2008-02-26 | 2009-03-04 | 北京中冶博瑞特科技有限公司 | Automatic distributing control system of sintering machine |
| CN201297849Y (en) * | 2008-11-12 | 2009-08-26 | 山西太钢不锈钢股份有限公司 | Automatic distribution control device of a sintering machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4840530B2 (en) | 2011-12-21 |
| CN102712964A (en) | 2012-10-03 |
| JP2011174169A (en) | 2011-09-08 |
| KR101440701B1 (en) | 2014-09-17 |
| WO2011093518A1 (en) | 2011-08-04 |
| KR20120103707A (en) | 2012-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102712964B (en) | Method and device for controlling layer thickness of sintering starting material for sintering machine | |
| JP5703755B2 (en) | Sintering raw material layer thickness control method and apparatus for sintering machine | |
| CN101560599B (en) | Thickness control method and control system of mixed material layer | |
| EP0383079A2 (en) | Method for manufacturing agglomerates of sintered pellets | |
| US20220380859A1 (en) | Method for operating blast furnace | |
| JP2010084183A (en) | Method for controlling layer thickness level of sintering raw material in sintering machine | |
| JP6179726B2 (en) | Method for producing sintered ore | |
| JP5633121B2 (en) | Method for producing sintered ore | |
| JP2015045463A (en) | Supply system for particulate matter and combustion device | |
| KR101027279B1 (en) | Upper ore level control apparatus in sintering process | |
| JP2011075211A (en) | Device for detecting sintering material charging state, sintering machine using the same, and method for manufacturing sintered ore | |
| JP4231459B2 (en) | Coke oven coal level control method | |
| JPH0587464A (en) | Controlling method for sintering completion point in sintering machine | |
| JP2022182574A (en) | Manufacturing method of sintered ore | |
| KR102305734B1 (en) | Apparatus and method for controlling charging amount of sintering material | |
| KR20180024219A (en) | Method for controlling profile of surge hopper | |
| JP2017119254A (en) | Incineration ash treatment system and method | |
| JP5761059B2 (en) | Sintering machine operating method and sintering machine operating system | |
| JPH06287647A (en) | Operation of sintering machine | |
| KR20020048205A (en) | Apparatus for controlling density of burden material in sintering machine | |
| JP4233039B2 (en) | Coke oven coal level control method | |
| JPH0288724A (en) | Method for operating sintering machine | |
| KR100836448B1 (en) | Apparatus for manufacturing the sintered ore | |
| KR100905611B1 (en) | Apparatus for controlling vibration in pulverizer mill | |
| JP2005331235A (en) | Waste supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |