CN101683595A - Blending material accumulation control method and device - Google Patents
Blending material accumulation control method and device Download PDFInfo
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- CN101683595A CN101683595A CN200810200732A CN200810200732A CN101683595A CN 101683595 A CN101683595 A CN 101683595A CN 200810200732 A CN200810200732 A CN 200810200732A CN 200810200732 A CN200810200732 A CN 200810200732A CN 101683595 A CN101683595 A CN 101683595A
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Abstract
The invention relates to the processing technology of blast furnace iron making material, in particular to a blending material accumulation control method and a device. The blending material accumulation control method can realize real-time control to stockpile thickness only by the self adaptive control of a blending stoker. The device for applying the blending material accumulation control method comprises a blending stoker, a belt flow weighing scale, a pile height detection device and a computing controller, wherein the cantilever of the blending stoker is provided with the pile height detection device, the blending stoker is provided with the computing controller, the walk driving device of the blending stoker adopts a stepless speed regulation device, the belt flow weighing scale isarranged on the stockpile belt conveyor of the blending stoker, the output lines of the belt flow weighing scale and the pile height detection device are connected with the computing controller, and the output of the computing controller is connected with the walk driving device of the blending stoker. The invention can control stockpile thickness in real time and improve the quality of blending material accumulation, thus improving the operation efficiency of blending material accumulation and reducing operation energy consumption of blending material accumulation.
Description
Technical field
The present invention relates to processing technology of blast furnace iron making, relate in particular to control method and device that a kind of mixing mineral aggregate is piled up.
Background technology
Blast furnace ironmaking is paid attention to the stability of material composition very much, and the fluctuation that reduces material composition has very important meaning for blast furnace iron-making process volume increase consumption reduction.In order to guarantee the stability of blast furnace ironmaking raw material, must produce composition and all stable sintering deposit of performance.Improve the quality of raw materials for sintering, stable sintering mixing ore deposit composition, the fluctuation that reduces mixing ore deposit composition is extremely important to the sintering deposit of producing composition and stable performance.
The device that pile up in existing iron-smelting raw material mixing ore deposit mainly contains: referring to Fig. 1, several are equipped with the hopper 1 that single variety is treated the mixing raw material, the metering device 2 of each hopper drain hole, the raw material of metering device output is transported to belt conveyer 3 on the mixed-windrowed locomotive of stock ground, the mixed-windrowed locomotive 4 that walks back and forth with two kinds of speed on the stock ground, stockyard 10 apparatus such as grade of placing the mixing stockpile constitute.
The method that pile up in existing iron-smelting raw material mixing ore deposit: referring to Fig. 1, the difference material kind of single variety is housed in several raw material hoppers 1, the raw material proportioning needs different according to technology, control system control is installed in the metering device 2 of hopper drain hole, each metering device is given according to the speed of control system, carry out the outputs of the single variety raw material of different material kind with speed separately, the raw material to be joined that each metering device 2 will be exported separately outputs on same the belt conveyor 3 and mixes.Belt conveyor is transported to the mixed material on the travelling belt on the stockplling belt of mixed-windrowed locomotive 4 on the material storage yard, and mixed-windrowed locomotive 4 is deposited in the mixed material on the stockplling belt on the material storage yard 10.Along with mixed-windrowed locomotive along walking back and forth that the material storage yard length direction does not stop, mixed material successively is piled into the mixing stockpile 11 of strip.More even for the accumulating amount that makes every layer of stockpile, mixed-windrowed locomotive 4 has two kinds of traveling speeds, is the low speed traveling when moving ahead with the raw material traffic direction, and contrary raw material traffic direction is the high speed traveling when retreating.Because supposing has material all the time on the belt conveyor, the time windrow amount when mixed-windrowed locomotive stops traveling equaling the speed of service of belt conveyor.Time windrow amount when mixed-windrowed locomotive moves ahead with the raw material traffic direction, the speed of service that equals belt conveyor deducts the traveling speed of mixed-windrowed locomotive.Time windrow amount when the contrary raw material traffic direction of mixed-windrowed locomotive retreats, the speed of service that equals belt conveyor adds the traveling speed of mixed-windrowed locomotive.So mixed-windrowed locomotive adopts two kinds of traveling speeds controls in the prior art, like this can so that mixed-windrowed locomotive just, windrow bed thickness difference during contrary traveling dwindles.
There is the defective of following several aspects in the method and apparatus that pile up in existing iron-smelting raw material mixing ore deposit:
1, mixed-windrowed locomotive adopts two kinds of traveling speeds controls in the prior art, though like this can so that mixed-windrowed locomotive just, windrow bed thickness difference during against traveling dwindles.But the windrow bed thickness not only with mixed-windrowed locomotive just, contrary traveling speed is relevant, also much relations are arranged simultaneously with the volume of the heap of windrow, the sum total of metering device feeding coal etc., because sum up under the constant substantially situation at the metering device feeding coal, the bed thickness of windrow is relevant with the surface area of stockpile, along with increasing gradually of stockpile, the surface area of stockpile also increases gradually, raw material with isodose is piled up, will certainly cause the bed thickness of windrow initially very thick, can thin down afterwards, even can not cover whole stockpile surface finally.
2, in original windrow device, the mixed-windrowed locomotive traveling has only at a high speed and two kinds of speed of low speed.Cause like this when stockpile just begins to pile up, be just, the traveling speed of contrary traveling mixed-windrowed locomotive is all too slow, when stockpile is stacked into certain altitude, be just, the traveling speed of contrary traveling mixed-windrowed locomotive is all too fast, either way has a strong impact on the uniformity of windrow bed thickness.
If 3 consider above-mentioned two kinds of speed factors, though also can carry out certain control to total resultant of metering device feed, so that bed thickness obtains certain control.But to do like this, on original windrow control method and device, great limitation be arranged all, take into account this relation of more than one simultaneously and obviously be difficult to realize.
4, in original windrow control method, in order to improve the mixing quality of mixing material, generally when just beginning to pile up, stockpile controls less flow, when piling when a certain amount of amplified flow then, can play a role though do so also, but the result who does like this is not high except control accuracy, also will sacrifice the windrow efficiency of operation.
Summary of the invention
The object of the present invention is to provide a kind of new blending material accumulation control method and device, described blending material accumulation control method is by the Self Adaptive Control of mixed-windrowed locomotive, can reach the real-time control of windrow bed thickness, improve the quality of blending material accumulation, thereby the operating efficiency of blending material accumulation is improved, reduce the operation consumption of blending material accumulation.
The present invention is achieved in that a kind of blending material accumulation control method, comprises the following steps:
(1) calculates the sectional area S1 of stockpile at this moment
Stockpile under the heap high detection device is the high h1 of heap in real time, h1=h3-h4;
Stockpile under total in real time heap height of stockpile and the heap high detection device is the high difference in height h2 of heap in real time, h2=w1*tgA;
This moment stockpile the high hz of in real time total heap, hz=h1+h2;
This moment stockpile real-time heap bottom width w2, w2=hz*ctgA*2;
This moment stockpile sectional area S1, S1=w2*hz/2;
(2) calculate the stockpile sectional area Sy of this layer windrow after long-pending
Height hy after this layer windrow is long-pending, hy=hz+hc;
Stockpile base length wy after this layer windrow is long-pending, wy=hy*ctgA*2;
Stockpile sectional area Sy after this layer windrow is long-pending, Sy=wy*hy/2;
(3) calculate the sectional area Sz that this layer needs accumulation
This layer needs the sectional area Sz of accumulation, Sz=Sy-S1;
(4) calculate material volume flow Dm in real time
Expect volume flow Dm, Dm=Wm/Wt in real time;
(5) calculate the traveling speed v that mixed-windrowed locomotive needs at this moment
The traveling speed v that mixed-windrowed locomotive needs at this moment, v=Dm/Sz;
After calculating the traveling speed v that mixed-windrowed locomotive needs at this moment, this traveling speed control parameter is delivered to frequency-variable controller, carry out the traveling speed control of mixed-windrowed locomotive;
A kind of device of implementing blending material accumulation control method comprises mixed-windrowed locomotive, and mixed-windrowed locomotive is that the material on the travelling belt is deposited on the mixing stockpile field through the stockplling belt on the mixed-windrowed locomotive; Described blending material accumulation control device also comprises Belt Flow scale, heap high detection device, arithmetic and control unit, heap high detection device is housed on the described mixed-windrowed locomotive cantilever, arithmetic and control unit is housed on the mixed-windrowed locomotive, the horizontal drive device of walking of mixed-windrowed locomotive adopts stepless speed-regulating device, on the stockplling belt machine of mixed-windrowed locomotive, the Belt Flow scale is housed, the output line of Belt Flow scale and heap high detection device connects arithmetic and control unit, and arithmetic and control unit output connects mixed-windrowed locomotive and walks horizontal drive device.
Described heap high detection device is a ultrasonic wave heap high detection device.
Described stepless speed-regulating device is the variable-frequency stepless speed-regulating device.
The present invention is a kind of new blending material accumulation control method, and the device of implementing this new blending material accumulation control method.Blending material accumulation control method of the present invention only by the Self Adaptive Control of mixed-windrowed locomotive, just can reach the real-time control of windrow bed thickness.This blending material accumulation control method can be ignored the size of the total resultant of metering device feed, and metering device can be reduced to the proportioning of only controlling various material, has reduced the difficulty of system's control.By the Self Adaptive Control of mixed-windrowed locomotive, can reach in real time accurately control windrow bed thickness, improve the quality of blending material accumulation, thereby the operating efficiency of blending material accumulation is improved, can also reduce the operation consumption of blending material accumulation simultaneously.
Description of drawings
Fig. 1 is the apparatus structure schematic diagram of existing blending material accumulation;
Fig. 2 is a blending material accumulation control device structural representation of the present invention;
Fig. 3 is the relevant calculation of parameter schematic diagram of blending material accumulation control method of the present invention.
Among the figure: 1 raw material stock chest, 2 metering devices, 3 belt conveyors, 4 mixed-windrowed locomotives, 5 garage's tracks, 6 heap high detection devices, 7 Belt Flow scales, 8 frequency conversion stepless adjusting apparatus, 10 mixing stockpile fields, 11 mixing material stockpiles.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 2, a kind of device of implementing blending material accumulation control method comprises mixed-windrowed locomotive 4, Belt Flow scale 7, heap high detection device 6, arithmetic and control unit.Described mixed-windrowed locomotive 4 is that the material on the travelling belt is deposited on the stockpile field 10 through the stockplling belt on the mixed-windrowed locomotive 4, forms mixing material stockpile 11; A ultrasonic wave heap high detection device 6 is housed on mixed-windrowed locomotive 4 cantilevers, an arithmetic and control unit is housed on the mixed-windrowed locomotive 4, the horizontal drive device of walking of mixed-windrowed locomotive 4 adopts variable-frequency stepless speed-regulating device 8, and a Belt Flow scale 7 is housed on the stockplling belt machine of mixed-windrowed locomotive 4; The output line of Belt Flow scale 7 and heap high detection device 6 connects arithmetic and control unit, and arithmetic and control unit output connects mixed-windrowed locomotive and walks horizontal drive device.
Variable-frequency stepless speed-regulating is adopted in the traveling speed control of mixed-windrowed locomotive 4, and its traveling speed can be regulated in per minute 5-80 rice scope according to piling up the control needs.A Belt Flow scale 7 of on the stockplling belt machine of mixed-windrowed locomotive 4, installing, its weighing range the 0-1000 ton/hour, utilize Belt Flow scale 7 can obtain the real-time traffic of raw material on the stockplling belt.A ultrasonic wave heap high detection device 6 of installing on the cantilever of mixed-windrowed locomotive 4, its height detection scope 0.5-6 rice can detect the real-time heap height of windrow heap by heap high detection device 6.An arithmetic and control unit is housed on mixed-windrowed locomotive 4, arithmetic and control unit utilizes the control PLC on the former mixed-windrowed locomotive, in arithmetic and control unit, be composed of the setting of control parameter, demonstration, the stockpile surface area calculates, relational calculus between flow, surface area, bed thickness, the speed of travel, speed of travel control supervisor, the general control program of other mixed-windrowed locomotive is not just in this statement.
Referring to Fig. 2, Fig. 3, a kind of blending material accumulation control method comprises the following steps:
(1) calculates the sectional area S1 of stockpile at this moment
Heap high detection device stockpile is down piled high h1=h3-h4=8.6 rice-3.8 meter=4.8 meters in real time;
Stockpile under total in real time heap height of stockpile and the heap high detection device is the high difference in height of heap in real time
H2=w1*tgA=2*tg37 °=1.51 meters;
This moment stockpile the high hz=h1+h2=4.8+1.51=6.31 rice of in real time total heap;
This moment stockpile real-time heap bottom width w2=hz*ctgA*2=16.75 rice;
Sectional area S1=w2*hz/2=52.846 square metre of stockpile at this moment;
(2) calculate the stockpile sectional area Sy of this layer windrow after long-pending
Height hy=hz+hc=6.31+0.018=6.328 after this layer windrow is long-pending;
Stockpile base length wy=hy*ctgA*2=16.80 rice after this layer windrow is long-pending;
Sy=wy*hy/2=53.155 square metre of stockpile sectional area after this layer windrow is long-pending;
(3) calculate the sectional area Sz that this layer needs accumulation
This layer needs sectional area Sz=Sy-S1=0.31 square metre of accumulation;
(4) calculate material volume flow Dm in real time
Expect volume flow Dm=Wm/60/Wt=5.656m in real time
3/ minute;
(5) calculate the traveling speed v that mixed-windrowed locomotive needs at this moment
The traveling speed v=Dm/Sz=5.656/0.31=18.25 rice that mixed-windrowed locomotive needs at this moment/minute;
Calculate the traveling speed v=18.25 rice that mixed-windrowed locomotive needs at this moment/minute after, with this traveling speed control parameter v=18.25 rice/minute, deliver to frequency-variable controller, carry out the traveling speed control of mixed-windrowed locomotive;
More than by preferred embodiment the specific embodiment of the present invention has been described, but it should be understood that concrete description should not be construed as the qualification to the spirit and scope of the invention here.Economy and deposition efficiency in view of system's design, the maximum fan-out capability of metering device, the maximum transmission capacity of travelling belt, the highest traveling speed etc. of mixed-windrowed locomotive are had certain limitation, in the banking process of whole stockpile, to keep same bed thickness all the time like this, particularly to make stockpile accumulation starting stage and stockpile pile up later stage and will keep same bed thickness all the time, equipment investment is just not necessarily economical, piles up just not necessarily efficient.In order to solve this contradiction, in that refining is piled up under the little prerequisite of quality influence, several different layer thickness control parameters can be set at the differing heights of stockpile, refining accumulation quality, equipment investment, deposition efficiency several respects are taken into account.Any improvement does not in this respect influence the claimed essentiality content of the present invention.
Claims (4)
1. a blending material accumulation control method is characterized in that: comprise the following steps:
Step 1, in arithmetic and control unit, insert operation and control parameter, part parameter is recorded by the Belt Flow scale that is installed on the stockplling belt machine that heap high detection device is housed on the mixed-windrowed locomotive cantilever and is installed in mixed-windrowed locomotive, comprise: heap high detection device detects the distance h 4 that windrow is piled checkout gear, original cantilever height checkout gear is sent cantilever height value h3 this moment on the mixed-windrowed locomotive, heap high detection Unit Installation location parameter w1, the flow value Wm of Belt Flow scale outputting material on the stockplling belt machine; Another part parameter is set up, and parameter is set comprises: raw material is piled up angle of repose A, stockpile proportion Wt, every layer of high hc of heap;
Step 2 is calculated according to above-mentioned parameter, obtains the traveling speed v that mixed-windrowed locomotive needs at this moment at last;
(1) calculates the sectional area S1 of stockpile at this moment
Stockpile under the heap high detection device is the high h1 of heap in real time, h1=h3-h4;
Stockpile under total in real time heap height of stockpile and the heap high detection device is the high difference in height h2 of heap in real time, h2=w1*tgA;
This moment stockpile the high hz of in real time total heap, hz=h1+h2;
This moment stockpile real-time heap bottom width w2, w2=hz*ctgA*2;
This moment stockpile sectional area S1, S1=w2*hz/2;
(2) calculate the stockpile sectional area Sy of this layer windrow after long-pending
Height hy after this layer windrow is long-pending, hy=hz+hc;
Stockpile base length wy after this layer windrow is long-pending, wy=hy*ctgA*2;
Stockpile sectional area Sy after this layer windrow is long-pending, Sy=wy*hy/2;
(3) calculate the sectional area Sz that this layer needs accumulation
This layer needs the sectional area Sz of accumulation, Sz=Sy-S1;
(4) calculate material volume flow Dm in real time
Expect volume flow Dm, Dm=Wm/Wt in real time;
(5) calculate the traveling speed v that mixed-windrowed locomotive needs at this moment
The traveling speed v that mixed-windrowed locomotive needs at this moment, v=Dm/Sz;
Step 3 is delivered to frequency-variable controller with the traveling speed that the mixed-windrowed locomotive that calculates needs at this moment, and the traveling speed of mixed-windrowed locomotive is controlled
After calculating the traveling speed v that mixed-windrowed locomotive needs at this moment, this traveling speed control parameter is delivered to frequency-variable controller, carry out the traveling speed control of mixed-windrowed locomotive;
Step 4, in the banking process of whole stockpile, the mixed-windrowed locomotive arithmetic and control unit carry out all the time above-mentioned steps 1 to the detection of step 3, the process of parameter call, computing, control is set, control in real time by traveling speed mixed-windrowed locomotive, realize even windrow.
2, a kind of device of implementing blending material accumulation control method, comprise mixed-windrowed locomotive, mixed-windrowed locomotive is that the material on the travelling belt is deposited on the mixing stockpile field through the stockplling belt on the mixed-windrowed locomotive, it is characterized in that: described blending material accumulation control device also comprises the Belt Flow scale, heap high detection device, arithmetic and control unit, heap high detection device is housed on the described mixed-windrowed locomotive cantilever, arithmetic and control unit is housed on the mixed-windrowed locomotive, the horizontal drive device of walking of mixed-windrowed locomotive adopts stepless speed-regulating device, on the stockplling belt machine of mixed-windrowed locomotive, the Belt Flow scale is housed, the output line of Belt Flow scale and heap high detection device connects arithmetic and control unit, and arithmetic and control unit output connects mixed-windrowed locomotive and walks horizontal drive device.
3, blending material accumulation control device according to claim 2 is characterized in that: described heap high detection device is a ultrasonic wave heap high detection device.
4, blending material accumulation control device according to claim 2 is characterized in that: described stepless speed-regulating device is the variable-frequency stepless speed-regulating device.
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Family Cites Families (4)
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| CN200946049Y (en) * | 2006-05-31 | 2007-09-12 | 宝山钢铁股份有限公司 | Automatic recording device for material stacking machine |
-
2008
- 2008-09-28 CN CN200810200732XA patent/CN101683595B/en not_active Expired - Fee Related
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