CN103706481A - Method and system for acquiring electric field dust-collecting ratio of multi-electric-field dust collector in sintering system - Google Patents
Method and system for acquiring electric field dust-collecting ratio of multi-electric-field dust collector in sintering system Download PDFInfo
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- CN103706481A CN103706481A CN201310730814.6A CN201310730814A CN103706481A CN 103706481 A CN103706481 A CN 103706481A CN 201310730814 A CN201310730814 A CN 201310730814A CN 103706481 A CN103706481 A CN 103706481A
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Abstract
The invention discloses a method for acquiring the electric field dust-collecting ratio of a multi-electric-field dust collector in a sintering system. The method comprises the following steps: detecting first settlement time in which dust in a first ash storage bin settles from an empty bin to a high material level and second settlement time in which dust in a second ash storage bin settles from the empty bin to the high material level, wherein the first ash storage bin is positioned in a first electric field of multi-electric-field dust collector, and the second ash storage bin is positioned in a posterior electric field of the first electric field; acquiring the target dust-collecting ratios of the posterior electric field and first electric field. The invention further discloses a system for acquiring the electric field dust-collecting ratio of the multi-electric-field dust collector in the sintering system. Compared with the ash unloading time of the posterior electric field electric field set by means of experience or factory settings in the prior art, the target dust-collecting ratio acquired by the method and the system has the advantages that the accuracy of the ash unloading time of the electric fields determined according to the target dust-collecting ratio can be further increased, and more accurate guidance can be provided for ash unloading of the multi-electric-field dust collector.
Description
Technical field
The present invention relates to sintering system dedusting technology field, more specifically, relate to a kind of acquisition methods and system of many electric-field dust collectors of sintering system electric field dedusting ratio.
Background technology
The dusty gas producing in SINTERING PRODUCTION need to just can enter atmosphere after electric cleaner is processed, so electric cleaner is environmental protection equipment important in SINTERING PRODUCTION.Electric cleaner in sintering system is generally many electric-field dust collectors, has many electric fields (for example three electric fields or four electric fields) structure.
Please refer to Fig. 1-2, three electric-field dust collectors comprise successively the electric field 02 being communicated with, No. two electric fields 03 and No. three electric fields 04, the dusty gas of dusty gas by dedusting air channel discharged section 01 and entered into electric field 02 No. one, discharges section 08 successively discharge by electric field 02, No. two electric fields 03 and No. three electric field 04 dedustings by the purifying smoke in dedusting air channel.In the process of dedusting, in the dust of electric field 02 generation ash-storing bin 021 thereunder, collect, then by unloading valve 022, discharge; In the dust of No. two electric field 03 generations ash-storing bin 031 thereunder, collect, then by unloading valve 032, discharge; In the dust of No. three electric field 04 generations ash-storing bin 041 thereunder, collect, then by unloading valve 042, discharge.Generally each electric field is provided with a plurality of ash-storing bins, the dust that a plurality of ash-storing bins of each electric field are discharged is by being positioned at scrapper conveyor 06 transportation of each electric field below, the scrapper conveyor 06 of each electric field below is by dust emission to transporting equipment 05, and dust is finally discharged by transporting equipment 05.
The dust quantity that removes of above-mentioned many each electric fields of electric-field dust collector has bigger difference.Wherein: No. one electric field 02 is removed approximately 90% dust, No. two electric fields 03 are removed the dust of 90% in residue 10% dust, i.e. approximately 9% dust, and No. three electric fields 04 are removed approximately 90% dust in residue 1% dust.When electric field 02 is when buying securities with all one's capital, many electric-field dust collectors start to unload ash, and now No. two electric fields 03 and No. three electric fields 04 do not accumulate too many ash.For example, when electric field 02 ash-storing bin is bought securities with all one's capital for 8 hours, must unload ash, and now, the ash-storing bin 031 of No. two electric fields 03 just runs up to the dust of 10% volume, 80 hours (volume of many each ash-storing bins of electric-field dust collector is identical) of needs if the ash-storing bin 031 of No. two electric fields 03 is bought securities with all one's capital to obtain.
Yet in the grey process of unloading of reality, each ash-storing bin that unloads each electric field in the ash cycle all can unload ash.Because each unloaded in the ash cycle, the Dust Capacity of the ash-storing bin accumulation of the rear potential electrical field of electric fields 02 such as No. two electric fields 03 and No. three electric fields 04 is less, so the unloading valve of the rear potential electrical fields such as No. two electric fields 03, No. three electric fields 04 unloads the ash time and distributes, and conventionally sets according to the Default Value of experience or many electric-field dust collectors.
In actual production, the variation of the factors such as SINTERING PRODUCTION operating mode, electric field health status, material condition, all can affect the dust removing effects of many each electric fields of electric-field dust collector, thereby it is inaccurate to cause unloading grey sequential.For sintering system, many electric-field dust collectors can not unload exactly ash and will cause dust pelletizing system air leak rate of air curtain to increase, and then can affect dust removing effects, increase dedusting fan power consumption.Obviously, the ash time of unloading of the subsequent electric field of setting according to experience or Default Value cannot adapt to actual production, and then cannot unload ash according to actual production.
Summary of the invention
The acquisition methods that the object of this invention is to provide a kind of many electric-field dust collectors of sintering system electric field dedusting ratio, with dependence experience or Default Value in solution background technology, fixed subsequent electric field is unloaded the ash time, cannot produce the grey problem of unloading that instructs more exactly according to actual sintered.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The acquisition methods of many electric-field dust collectors of sintering system electric field dedusting ratio, comprises the following steps:
Detect the first sedimentation time and the second ash-storing bin dust that the first ash-storing bin dust is settled down to high charge level by hole capital after selling all securities and by hole capital after selling all securities, be settled down to the second sedimentation time of high charge level, described the first ash-storing bin is arranged in the first electric field of described many electric-field dust collectors, and described the second ash-storing bin is arranged in a rear potential electrical field of described the first electric field;
Obtain the target dedusting ratio of described rear potential electrical field and described the first electric field.
Preferably, in above-mentioned acquisition methods, also comprise:
Judge whether to meet pre-conditioned, reach default sense cycle than the time of detecting described pre-conditioned comprising apart from last time target dedusting; Or the proportions of sintering raw materials of described sintering system changes; Or power on after described many electric-field dust collectors power-off;
Described when pre-conditioned when meeting, detect described the first sedimentation time and described the second sedimentation time.
Preferably, in above-mentioned acquisition methods, obtain the target dedusting ratio of described rear potential electrical field and described the first electric field, comprising:
According to k
1=t
1/ t
2calculate described target dedusting ratio, wherein k
1for target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
Preferably, in above-mentioned acquisition methods, obtain the target dedusting ratio of described rear potential electrical field and described the first electric field, comprising:
According to k
4=t
1/ t
2calculate the reference dedusting ratio of described rear potential electrical field and described the first electric field;
Obtain the historical dedusting ratio of described rear potential electrical field and described the first electric field;
Utilize k=k
4/ 2+k
5/ 2 calculate described target dedusting ratio, wherein, and k
4for with reference to dedusting ratio, k
5be historical dedusting ratio, k is target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
Preferably, in above-mentioned acquisition methods, detect described the second ash-storing bin dust and by hole capital after selling all securities, be settled down to the second sedimentation time of high charge level, comprising:
Detect described the second ash-storing bin dust and by hole capital after selling all securities, be settled down to the 3rd sedimentation time of low material level;
Inquire about dust in described the second ash-storing bin and fall the dust volume ratio that low material level and dust are fallen high charge level;
Utilize t
2=t
3/ k
3calculate described the second sedimentation time, wherein t
3be the 3rd sedimentation time, k
3for dust volume ratio, t
2it was the second sedimentation time.
Preferably, in above-mentioned acquisition methods, detect dust in described the first ash-storing bin and by hole capital after selling all securities, be settled down to the first sedimentation time of high charge level, comprising:
Detecting dust in described the first ash-storing bin starts to be settled down to the first actuation time of the high charge level switch motion experience of described the first ash-storing bin from hole capital after selling all securities;
Judge and whether be less than or equal to the first setting value described the first actuation time;
When be less than or equal to the first setting value described the first actuation time, using described the first actuation time as the first sedimentation time.
Preferably, in above-mentioned acquisition methods, detect dust in described the second ash-storing bin and by hole capital after selling all securities, be settled down to the second sedimentation time of high charge level, comprising:
Detecting dust in described the second ash-storing bin starts to be settled down to the second actuation time of the high charge level switch motion experience of the second ash-storing bin from hole capital after selling all securities;
Judge and whether be less than or equal to the second setting value described the second actuation time;
When be less than or equal to the second setting value described the second actuation time, using described the second actuation time as the second sedimentation time.
Acquisition methods based on above-mentioned many electric-field dust collectors of the sintering system electric field dedusting ratio providing, the present invention also provides the system of obtaining of many electric fields of the many electric-field dust collectors of a kind of sintering system dedusting ratio, comprising:
The first detecting unit, is settled down to the first sedimentation time of high charge level by hole capital after selling all securities for detection of the first ash-storing bin dust, described the first ash-storing bin is arranged in the first electric field of described many electric-field dust collectors;
The second detecting unit, is settled down to the second sedimentation time of high charge level by hole capital after selling all securities for detection of the second ash-storing bin dust, described the second ash-storing bin is arranged in a rear potential electrical field of described the first electric field;
Acquiring unit, for obtaining the target dedusting ratio of described rear potential electrical field and described the first electric field.
Preferably, above-mentioned obtaining in system, described acquiring unit comprises:
The first computation subunit, for according to k
1=t
1/ t
2calculate described target dedusting ratio, wherein, k
1for target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
Preferably, above-mentioned obtaining in system, described acquiring unit comprises:
The second computation subunit, for according to k
4=t
1/ t
2calculate the reference dedusting ratio of described rear potential electrical field and described the first electric field;
Obtain subelement, obtain described rear potential electrical field and the historical dedusting ratio of described the first electric field;
The 3rd computation subunit, utilizes k=k
4/ 2+k
5/ 2 calculate described target dedusting ratio, wherein, and k
4for with reference to dedusting ratio, k
5be historical dedusting ratio, k is target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
The acquisition methods of many electric-field dust collectors of sintering system electric field dedusting ratio provided by the invention, has following beneficial effect:
The dedusting of many electric-field dust collectors of sintering system electric field is than can change by the impact of the factors such as SINTERING PRODUCTION operating mode, electric field health status, material condition, and above-mentioned influence factor finally can be reflected in the dust settling process of each electric field, the acquisition methods of many electric-field dust collectors of sintering system electric field dedusting ratio provided by the invention, by detecting the first sedimentation time and the second sedimentation time, determine a rear potential electrical field of the first electric field and the target dedusting ratio of the first electric field, realize according to the actual condition of production and determine target dedusting ratio.With respect to background technology rely on experience or Default Value and fixed dedusting than for, more can be applicable to the actual condition of production, and then can improve and according to target dedusting, than definite electric field, unload the accuracy of ash time, finally can instruct more accurately the ash work of unloading of many electric-field dust collectors.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of structural representation of three electric-field dust collectors;
Fig. 2 is the side view of an electric field in three electric-field dust collectors;
Fig. 3 is that many electric-field dust collectors of sintering system electric field dedusting of providing of the embodiment of the present invention one is than the flow chart of acquisition methods;
Fig. 4 is that many electric-field dust collectors of sintering system electric field dedusting of providing of the embodiment of the present invention two is than the flow chart of acquisition methods;
Fig. 5 is that many electric-field dust collectors of sintering system electric field dedusting of providing of the embodiment of the present invention three is than the flow chart of acquisition methods;
Fig. 6 is that many electric-field dust collectors of sintering system electric field dedusting of providing of the embodiment of the present invention four is than the flow chart of acquisition methods;
Fig. 7 is that many electric-field dust collectors of sintering system electric field dedusting of providing of the embodiment of the present invention five is than the structural representation that obtains system.
The specific embodiment
The embodiment of the present invention provides a kind of acquisition methods of many electric-field dust collectors of sintering system electric field dedusting ratio, solve in background technology dependence experience or Default Value and fixed rear potential electrical field unloads the ash time, cannot produce the grey problem of unloading that instructs more exactly according to actual sintered.
In order to make those skilled in the art person understand better the technical scheme in the embodiment of the present invention, and the above-mentioned purpose of the embodiment of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is described in further detail.
It should be noted that, many electric-field dust collectors electric field dedusting ratio refers to, the ratio of two electric field institute gumming dust quantitys that interior many electric-field dust collectors of unit interval are different, dimensionless.
With equation expression: K=Q1/Q2, wherein: K is dedusting ratio, dimensionless, Q1 be electric field 1 within the unit interval except dust quantity, unit is: Kg/min; Q2 be electric field 2 within the unit interval except dust quantity, unit is: Kg/min.The present invention detects dedusting ratio by indirect mode, by two of contrasts not the ash-storing bin of same electric field (ash-storing bin volume is consistent) dust settling to the different time of high charge level, obtain dedusting ratio.Dedusting has been than having illustrated the different efficiency of dust collection difference of each electric field of electric precipitation, can be used in reference to the different ash time of unloading of each electric field of conduction dedusting to distribute more accurately.
Dedusting can illustrate the health status of electric field than also, if electric field dedusting than substantial deviation, illustrates electric precipitation electric field health status, has problem, and electric field maintenance early warning information can be provided.
Embodiment mono-
Please refer to accompanying drawing 3, Fig. 3 shows many electric-field dust collectors of sintering system electric field dedusting that the embodiment of the present invention one provides than the flow process of acquisition methods.
Flow process shown in Fig. 3, comprising:
S101, judge whether to meet pre-conditioned.
Generally, due to the variation of the factors such as SINTERING PRODUCTION operating mode, electric field health status, material condition, the dust removing effects of many each electric fields of electric-field dust collector be can affect, a rear potential electrical field of the first electric field and the target dedusting ratio of the first electric field affected.Now, the subsequent electric field of setting according to experience or Default Value is unloaded the ash time and cannot be adapted to actual production.So obtain target dedusting than before, need to pre-conditionedly judge some, to instruct subsequent operation.The pre-conditioned proportions of sintering raw materials that can comprise sintering system changes, or after described many electric-field dust collectors power-off, power on (such as sintering machine overhaul, in again put into production after repairing, transforming etc. need the situation of electrifying startup after power-off).In order to guarantee above-mentioned target dedusting, than adapting to better actual production, change, also can obtain according to default sense cycle, so pre-conditioned, also can comprise apart from target dedusting last time and reach default sense cycle than the time of detecting.Certainly, above-mentioned pre-conditioned can also be other factor that affects target dedusting ratio, this does not repeat.
Step S101 judges pre-conditioned, to determine whether subsequent detection carries out, for example, when meeting (reaching default sense cycle apart from target dedusting last time than the time of detecting) when pre-conditioned, enters step S102, otherwise, enter step S106.
In S102, detection the first ash-storing bin, dust is settled down to the first sedimentation time of high charge level by hole capital after selling all securities.
In step S102, the first ash-storing bin is arranged in the first electric field of many electric-field dust collectors.
In S103, detection the second ash-storing bin, dust is settled down to the second sedimentation time of high charge level by hole capital after selling all securities.
In step S103, the second ash-storing bin is arranged in a rear potential electrical field of the first electric field, can be a certain rear potential electrical field such as the second electric field, the 3rd electric field of many electric-field dust collectors.In the present embodiment one, the sequencing of step S102 and step S103 can be put upside down, and can certainly carry out simultaneously.
It should be noted that, in the specific embodiment of the invention, rear potential electrical field refers to the subsequent electric field of the first electric field, and the dedusting priority level of rear potential electrical field is lower than the first electric field, and rear potential electrical field can be the second electric field, the 3rd electric field etc.Many electric-field dust collectors in the embodiment of the present invention can be arranged on the sintering machine head end of sintering system, also can be arranged on other position of sintering system, so long as can carry out to the exhaust of sintering system the part of dust removal process.
In actual operating process, because each ash-storing bin of many electric-field dust collectors of sintering system electric field unloads ash manipulation according to the fixed grey sequential of unloading, above-mentioned steps S102 and step S103 are in concrete implementation process, the first ash-storing bin and the second ash-storing bin are an optional ash-storing bin in corresponding electric field, and in the process detecting, grey sequential is unloaded in the first ash-storing bin and the disengaging of the second ash-storing bin.After detection completes, the first ash-storing bin and the recurrence of the second ash-storing bin are unloaded grey sequential and are normally unloaded ash.
Common unloading in grey process, the dust of ash-storing bin should remain under high charge level, and on low material level, this is because the dust in many electric-field dust collectors ash-storing bin during higher than the high charge level of ash-storing bin, may occur that dust floods the fault of electric field, causes electric field cisco unity malfunction.Dust in many electric-field dust collectors ash-storing bin during lower than low material level, can cause the air leak rate of air curtain of many electric-field dust collectors to increase, thereby affects the SINTERING PRODUCTION of whole sintering system.For the control to dust charge level in ash-storing bin, in each ash-storing bin of many each electric fields of electric-field dust collector, be provided with high charge level switch and low stuff level switch, both are separately positioned on the high charge level and low material level of ash-storing bin, and the signal sending by high charge level switch and low stuff level switch is to determine the sedimentation degree of dust.After dust in ash-storing bin is drained, the signal of low stuff level switch is true, and the signal of high charge level switch is false, and when dust settling reaches high charge level, the signal of high charge level switch is true, high charge level switch motion.The time that step S102 can be settled down to high charge level switch motion experience from hole capital after selling all securities by dust in timer record the first ash-storing bin was the first sedimentation time, and the time that step S103 can be settled down to high charge level switch motion experience from hole capital after selling all securities by dust in timer record the second ash-storing bin was the second sedimentation time.
Except adopting the timing means of timing stuff level switch action, step S102 and step S103 can also adopt other sensor to detect the first sedimentation time and the second sedimentation time.
S104, obtain the target dedusting ratio of rear potential electrical field and the first electric field.
In step S104, can pass through result that formula (1) calculates directly as target dedusting ratio, after the target dedusting ratio of potential electrical field and the first electric field.
k
1=t
1/t
2 （1）
In above-mentioned formula (1), t
1the first sedimentation time, t
2the second sedimentation time, k
1rear potential electrical field and the target dedusting ratio of the first electric field, after potential electrical field remove the ratio of dust quantity except dust quantity and the first electric field unit interval.
Certainly, in actual testing process,, now can there is target dedusting than detecting inaccurate problem in proportions of sintering raw materials continued jitters within long period of time for example, in order to address the above problem, step S104 can also calculate target dedusting ratio by following steps.
A1, calculate after the reference dedusting ratio of potential electrical field and the first electric field.
By formula (2) computing reference dedusting ratio.
k
4=t
1/t
2 （2）
In above-mentioned formula (2), t
1the first sedimentation time, t
2it was the second sedimentation time; k
4it is rear potential electrical field and the reference dedusting ratio of the first electric field.
A2, obtain the historical dedusting ratio of rear potential electrical field and the first electric field.
Generally, on can retaining in the process of dedusting, target dedusting is once than record for many electric-field dust collectors, and historical dedusting ratio, can inquire about from equipment data by the mode of inquiry.
A3, calculating target dedusting ratio.
By formula (3), calculate target dedusting ratio.
k=k
4/2+k
5/2 （3）
In above-mentioned formula (3), k
4for with reference to dedusting ratio, k
5be historical dedusting ratio, k is target dedusting ratio.
By calculate historical dedusting than and with reference to dedusting, than the mode of average, ask for target dedusting ratio, can reduce the target dedusting ratio that the factor Long-term Fluctuations such as proportions of sintering raw materials cause and obtain inaccurate problem.
S105, upgrade after the current dedusting ratio of potential electrical field and the first electric field.
Step S105 utilize target dedusting that step S104 obtains than potential electrical field after upgrading the current dedusting ratio with the first electric field.
S106, end operation.
If pre-conditioned resentful in step S101, can not carry out subsequent operation, finish the whole operation of obtaining.
The acquisition methods of many electric-field dust collectors of sintering system electric field dedusting ratio that the embodiment of the present invention one provides, by detecting the dust settling time of a rear potential electrical field of the first electric field and the first electric field, acquisition can reflect the first sedimentation time and second sedimentation time of dust settling situation, then by the first sedimentation time and the second sedimentation time, obtains the target dedusting ratio of rear potential electrical field and the first electric field.This acquisition methods can be determined target dedusting ratio according to the actual dust settling situation of sintering system, and then the unloading the ash time of potential electrical field after determining more accurately, than dependence experience in background technology or Default Value and the ash time of unloading of fixed rear potential electrical field, more can improve and according to target dedusting, than definite electric field, unload the accuracy of ash time, and then can instruct more exactly the ash that unloads of many electric-field dust collectors.
Embodiment bis-
As described in background, the rear potential electrical field of the first electric field except dust quantity smaller, and the volume of many each ash-storing bins of electric-field dust collector is identical, so be arranged in the second sedimentation time that the second ash-storing bin dust of rear potential electrical field is settled down to high charge level by hole capital after selling all securities, grow (for example 80 hours), it is longer that this can make to detect the time used the second sedimentation time, not only detection efficiency is low, but also can affect rear potential electrical field normally unload ash.
For head it off, please refer to Fig. 4, Fig. 4 shows many electric-field dust collectors of sintering system electric field dedusting that the embodiment of the present invention two provides than the flow process of acquisition methods.
Flow process shown in Fig. 4, comprising:
S203, detection the second ash-storing bin dust are settled down to the 3rd sedimentation time of low material level by hole capital after selling all securities.
In step S203, can realize by the stuff level switch based on described in embodiment mono-equally, the time that can be settled down to low stuff level switch action experience from hole capital after selling all securities by dust in timer record the second ash-storing bin, certain the 3rd sedimentation time can also be detected by another way as the 3rd sedimentation time.
The dust volume ratio of S204, inquiry the second ash-storing bin low material level and the corresponding dust of high charge level.
In this step, the volume ratio of the corresponding dust of the inquiry low material level of the second ash-storing bin and high charge level, the volume V while referring to the low material level of dust settling to the second ash-storing bin
1the volume V during to the second ash-storing bin high charge level with dust deposit
2ratio k
3=V
1/ V
2.In the present embodiment, the volume of each ash-storing bin of many electric-field dust collectors all equates, and low material level and the high charge level of each ash-storing bin are identical, and concrete above-mentioned dust volume ratio can be inquired about and learn from equipment data, can certainly be by measuring.
S205, the second sedimentation time of calculating.
In step S205, can calculate for the second sedimentation time according to formula (4).
t
2=t
3/k
3 （4）
In above-mentioned formula (4), t
3be the 3rd sedimentation time, k
3for dust volume ratio, t
2it was the second sedimentation time.
The embodiment of the present invention two is settled down to low material level the 3rd sedimentation time used of the second ash-storing bin by detecting dust from hole capital after selling all securities, indirectly calculated for the second sedimentation time.Due to dust, from hole capital after selling all securities, to be settled down to the low material level of the ash-storing bin time used shorter, so can shorten the detection time of the second sedimentation time.This not only can improve detection efficiency, but also can reduce rear position normal electric field to unload grey impact.
It should be noted that, in Fig. 4, step S201, S202, S206, S207 and S208 are corresponding one by one with step S101, S102, S104, S105 and S106 in Fig. 3 respectively, and content is identical, specifically please refer to the description of appropriate section in embodiment mono-, this does not repeat.
Embodiment tri-
From embodiment mono-, describe known, the first sedimentation time can check by stuff level switch, in the actual course of work, because stuff level switch is consumable accessory, be easy to damage, but now whole testing process is still being carried out, and then can cause testing result inaccurate, finally affect the calculating of many electric-field dust collectors dedusting ratio.
In order to address the above problem, please refer to accompanying drawing 5, Fig. 5 shows many electric-field dust collectors of sintering system electric field dedusting that the embodiment of the present invention three provides than the flow process of acquisition methods.
Flow process shown in Fig. 5, comprising:
S302, detected for the first actuation time.
This step conventionally by timer since the first ash-storing bin dust when the hole capital after selling all securities settlement gauge, when high charge level switch motion, write down first actuation time a
1.
S303, judge whether be less than or equal to the first setting value the first actuation time.
This step to first actuation time a
1this variations compares with the first setting value, in common situation, due to the working conditions change of sintering system, can cause parameter that small variation can occur, as long as can be thought the accuracy of parameter in rational scope.In this step first setting value M1=k
2* t
1', wherein, k
2for coefficient, 1.5≤k
2≤ 2, t
1' be for example, in (one month) average of the first sedimentation time repeatedly in the first sedimentation time of the first ash unloading bin historical record or setting-up time section.
When the result of S303 judgement is yes, illustrate first actuation time a
1within rational scope, enter step S304; When the result of S303 judgement is while being no, illustrate first actuation time a
1unreasonable, mean that high charge level switch breaks down, and now can enter step S305.
S304, using the first actuation time as the first sedimentation time.
S305, high charge level switch fault is reported to the police.
Step S305 reports to the police to high charge level switch fault, and then reminds associative operation personnel to keep in repair.
The present embodiment three is by carrying out verification the first actuation time that dust is started to be settled down to high charge level switch motion experience by hole capital after selling all securities, and then judge while adopting this kind of mode to detect for the first sedimentation time, the accuracy of testing result, also can check high charge level switch whether healthy simultaneously, can remind by the mode of reporting to the police, can improve the self check performance of equipment.
It should be noted that, in Fig. 5, step S301, S306, S307, S308 and S309 are corresponding one by one with S101, S103, S104, S105 and S106 in Fig. 3 respectively, and content is identical, specifically please refer to the description of appropriate section in embodiment mono-, and this does not repeat.
Embodiment tetra-
Identical with embodiment tri-, the second sedimentation time also can check by stuff level switch, in the actual course of work, because stuff level switch is consumable accessory, be easy in damaged condition, but now whole testing process is still being carried out, and then can cause testing result inaccurate, the final calculating that affects sintering system dedusting ratio, i.e. the calculating of target dedusting ratio.
In order to address the above problem, please refer to accompanying drawing 6, Fig. 6 shows many electric-field dust collectors of sintering system electric field dedusting that the embodiment of the present invention four provides than the flow process of acquisition methods.
Flow process shown in Fig. 6, comprising:
S403, detected for the second actuation time.
This step, is ended when the high charge level switch motion of the second ash-storing bin since the second ash-storing bin dust is when the hole capital after selling all securities settlement gauge by timer, write down experience second actuation time a
2.
S404, judge whether be less than or equal to the second setting value the second actuation time.
This step to second actuation time a
2this variations compares with the second setting value, in common situation, due to the working conditions change of sintering system, can cause parameter that small variation occurs, as long as can be thought the accuracy of parameter in rational scope.In this step second setting value M2=k
2* t
2', wherein, k
2for coefficient, 1.5≤k
2≤ 2, t
2' be for example, in (one month) average of the second sedimentation time repeatedly in the second sedimentation time of described ash unloading bin historical record or setting-up time section.
When the result of S404 judgement is yes, illustrate second actuation time a
2within rational scope, enter step S405; When the result of S404 judgement is while being no, illustrate second actuation time a
2unreasonable, mean that high charge level switch breaks down, and now can enter step S406.
S405, using the second actuation time as the second sedimentation time.
S406, high charge level switch fault is reported to the police.
Step S406 reports to the police to high charge level switch fault, and then reminds associative operation personnel to keep in repair.
The present embodiment four-way is spent the second actuation time that dust is started to be settled down to high charge level switch motion experience by the hole capital after selling all securities of the second ash-storing bin and is carried out verification, and then judge while adopting this kind of mode to overhaul for the second sedimentation time, the accuracy of testing result, also can check high charge level switch whether healthy simultaneously, can remind by the mode of reporting to the police, and then can improve the self check performance of equipment.
It should be noted that, in Fig. 6, step S401, S402, S407, S408 and S409 are corresponding one by one with S101, S102, S104, S105 and S106 in Fig. 3 respectively, and content is identical, specifically please refer to the description of appropriate section in embodiment mono-, this does not repeat.
Embodiment five
Please refer to accompanying drawing 7, Fig. 7 shows many electric-field dust collectors of sintering system dedusting that the embodiment of the present invention five provides than the structure of obtaining system.
Structure shown in Fig. 7, comprising:
Judging unit 501, pre-conditioned for judging whether to meet.
Generally, due to the variation of the factors such as SINTERING PRODUCTION operating mode, electric field health status, material condition, the dust removing effects of many each electric fields of electric-field dust collector be can affect, a rear potential electrical field of the first electric field and the target dedusting ratio of the first electric field affected.Now, the subsequent electric field of setting according to experience or Default Value is unloaded the ash time and cannot be adapted to actual production.So obtain target dedusting than before, need to pre-conditionedly judge some, to instruct subsequent operation.The pre-conditioned proportions of sintering raw materials variation that can comprise sintering system, or power on after described many electric-field dust collectors power-off.In order to guarantee above-mentioned target dedusting, than adapting to better actual production, change, also can obtain according to default sense cycle, so pre-conditioned, also can comprise apart from dedusting last time and reach default sense cycle than the time of detecting.Certainly, above-mentioned pre-conditioned can also be other factor that affects target dedusting ratio, this does not repeat.
The first detecting unit 502, is settled down to the first sedimentation time of high charge level by hole capital after selling all securities for detection of dust in the first ash-storing bin.
The second detecting unit 503, is settled down to the second sedimentation time of high charge level by hole capital after selling all securities for detection of dust in the second ash-storing bin.
The first detecting unit 502 and the second detecting unit 503 detect respectively the first sedimentation time t
1with the second sedimentation time t
2both from hole capital after selling all securities, start timing, the first ash-storing bin and the second ash-storing bin lay respectively in different electric fields, and the first ash-storing bin is arranged in the first electric field, the second ash-storing bin is arranged in the rear potential electrical field of the first electric field one, it should be noted that, in the specific embodiment of the invention, rear potential electrical field refers to the subsequent electric field of the first electric field, and the dedusting priority level of rear potential electrical field is lower than the first electric field, and rear potential electrical field can be the second electric field, the 3rd electric field etc.
Common unloading in grey process, the dust of ash-storing bin should remain under high charge level, on low material level, this is because the dust in many electric-field dust collectors ash-storing bin during higher than the high charge level of ash-storing bin, may occur that dust floods the fault of electric field, cause electric field cisco unity malfunction, the dust in many electric-field dust collectors ash-storing bin is during lower than low material level, can cause the air leak rate of air curtain of many electric-field dust collectors to increase, thereby affect the SINTERING PRODUCTION of whole sintering system.For the control to dust charge level in ash-storing bin, in each ash-storing bin of many each electric fields of electric-field dust collector, be provided with high charge level switch and low stuff level switch, both are separately positioned on the high charge level and low material level of ash-storing bin, and the signal sending by high charge level switch and low stuff level switch is to determine the sedimentation degree of dust.After dust in ash-storing bin is drained, the signal of low stuff level switch is true, and the signal of high charge level switch is false, and when dust settling reaches high charge level, the signal of high charge level switch is true, high charge level switch motion.The time that the first detecting unit 502 can be settled down to high charge level switch motion experience from hole capital after selling all securities by dust in timer record the first ash-storing bin was the first sedimentation time, and the time that the second detecting unit 503 can be settled down to high charge level switch motion experience from hole capital after selling all securities by dust in timer record the second ash-storing bin was the second sedimentation time.
Acquiring unit 504, for obtaining the target dedusting ratio of rear potential electrical field and the first electric field.
Acquiring unit 504 can be the first computation subunit, and the result that the first computation subunit is calculated by formula (1) is directly as target dedusting ratio, after the target dedusting ratio of potential electrical field and the first electric field.
k
1=t
1/t
2 （1）
In above-mentioned formula (1), t
1the first sedimentation time, t
2the second sedimentation time, k
1rear potential electrical field and the target dedusting ratio of the first electric field, after potential electrical field remove the ratio of dust quantity except dust quantity and the first electric field.
Certainly, in actual testing process, proportions of sintering raw materials continued jitters within long period of time for example, now can there is target dedusting than detecting inaccurate problem, in order to address the above problem, acquiring unit 504, can also be by following subunit computes target dedusting ratio.Acquiring unit 504 can comprise:
The second computation subunit, for calculating the reference dedusting ratio of rear potential electrical field and the first electric field.
By formula (2) computing reference dedusting ratio.
k
4=t
1/t
2 （2）
In above-mentioned formula (2), t
1the first sedimentation time, t
2it was the second sedimentation time; k
4it is rear potential electrical field and the reference dedusting ratio of the first electric field.
Obtain subelement, for obtaining the historical dedusting ratio of rear potential electrical field and the first electric field.
Generally, on can retaining in the process of dedusting, target dedusting is once than (can be that dependence experience is set or the dedusting ratio of Default Value) for many electric-field dust collectors, and historical dedusting ratio, can inquire about from equipment by the mode of inquiry.
The 3rd computation subunit, for calculating target dedusting ratio.By formula (3), calculate target dedusting ratio.
k=k
4/2+k
5/2 （3）
In above-mentioned formula (3), k
4for with reference to dedusting ratio, k
5be historical dedusting ratio, k is target dedusting ratio.
By calculate historical dedusting than and with reference to dedusting, than the mode of average, ask for target dedusting ratio, can reduce the target dedusting ratio that the factor Long-term Fluctuations such as proportions of sintering raw materials cause and obtain inaccurate problem.
Updating block 505, for upgrading the current dedusting ratio of rear potential electrical field and the first electric field.
Updating block 505 utilize target dedusting that acquiring unit 504 obtains than potential electrical field after upgrading the current dedusting ratio with the first electric field.
The system of obtaining of many electric-field dust collectors of sintering system electric field dedusting ratio that the embodiment of the present invention five provides, the first detecting unit and the second detecting unit detect respectively the dust settling time of a rear potential electrical field of the first electric field and the first electric field, by obtaining the first sedimentation time and the second sedimentation time that can reflect dust settling situation, then by the first sedimentation time and the second sedimentation time, obtain the target dedusting ratio of rear potential electrical field and the first electric field.Above-mentioned target dedusting of obtaining is than practical condition that can reaction-sintered system, and then can determine more accurately unloading the ash time of rear potential electrical field, than dependence experience in background technology or Default Value and the ash time of unloading of fixed rear potential electrical field, more can improve and according to target dedusting, than definite electric field, unload the accuracy of ash time, and then can instruct more exactly the ash that unloads of many electric-field dust collectors.
Each embodiment in this description all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, each embodiment stresses is the difference with other embodiment.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the acquisition methods of many electric-field dust collectors of sintering system electric field dedusting ratio, is characterized in that, comprises the following steps:
Detect the first sedimentation time and the second ash-storing bin dust that the first ash-storing bin dust is settled down to high charge level by hole capital after selling all securities and by hole capital after selling all securities, be settled down to the second sedimentation time of high charge level, described the first ash-storing bin is arranged in the first electric field of described many electric-field dust collectors, and described the second ash-storing bin is arranged in a rear potential electrical field of described the first electric field;
Obtain the target dedusting ratio of described rear potential electrical field and described the first electric field.
2. acquisition methods according to claim 1, is characterized in that, also comprises:
Judge whether to meet pre-conditioned, reach default sense cycle than the time of detecting described pre-conditioned comprising apart from last time target dedusting; Or the proportions of sintering raw materials of described sintering system changes; Or power on after described many electric-field dust collectors power-off;
Described when pre-conditioned when meeting, detect described the first sedimentation time and described the second sedimentation time.
3. acquisition methods according to claim 1, is characterized in that, obtains the target dedusting ratio of described rear potential electrical field and described the first electric field, comprising:
According to k
1=t
1/ t
2calculate described target dedusting ratio, wherein k
1for target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
4. acquisition methods according to claim 1, is characterized in that, obtains the target dedusting ratio of described rear potential electrical field and described the first electric field, comprising:
According to k
4=t
1/ t
2calculate the reference dedusting ratio of described rear potential electrical field and described the first electric field;
Obtain the historical dedusting ratio of described rear potential electrical field and described the first electric field;
Utilize k=k
4/ 2+k
5/ 2 calculate described target dedusting ratio, wherein, and k
4for with reference to dedusting ratio, k
5be historical dedusting ratio, k is target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
5. according to the acquisition methods described in any one in claim 1-4, it is characterized in that, detect described the second ash-storing bin dust and by hole capital after selling all securities, be settled down to the second sedimentation time of high charge level, comprising:
Detect described the second ash-storing bin dust and by hole capital after selling all securities, be settled down to the 3rd sedimentation time of low material level;
Inquire about dust in described the second ash-storing bin and fall the dust volume ratio that low material level and dust are fallen high charge level;
Utilize t
2=t
3/ k
3calculate described the second sedimentation time, wherein t
3be the 3rd sedimentation time, k
3for dust volume ratio, t
2it was the second sedimentation time.
6. according to the acquisition methods described in any one in claim 1-4, it is characterized in that, detect dust in described the first ash-storing bin and by hole capital after selling all securities, be settled down to the first sedimentation time of high charge level, comprising:
Detecting dust in described the first ash-storing bin starts to be settled down to the first actuation time of the high charge level switch motion experience of described the first ash-storing bin from hole capital after selling all securities;
Judge and whether be less than or equal to the first setting value described the first actuation time;
When be less than or equal to the first setting value described the first actuation time, using described the first actuation time as the first sedimentation time.
7. according to the acquisition methods described in any one in claim 1-4, it is characterized in that, detect dust in described the second ash-storing bin and by hole capital after selling all securities, be settled down to the second sedimentation time of high charge level, comprising:
Detecting dust in described the second ash-storing bin starts to be settled down to the second actuation time of the high charge level switch motion experience of the second ash-storing bin from hole capital after selling all securities;
Judge and whether be less than or equal to the second setting value described the second actuation time;
When be less than or equal to the second setting value described the second actuation time, using described the second actuation time as the second sedimentation time.
8. the system of obtaining of many electric-field dust collectors of sintering system electric field dedusting ratio, is characterized in that, comprising:
The first detecting unit, is settled down to the first sedimentation time of high charge level by hole capital after selling all securities for detection of the first ash-storing bin dust, described the first ash-storing bin is arranged in the first electric field of described many electric-field dust collectors;
The second detecting unit, is settled down to the second sedimentation time of high charge level by hole capital after selling all securities for detection of the second ash-storing bin dust, described the second ash-storing bin is arranged in a rear potential electrical field of described the first electric field;
Acquiring unit, for obtaining the target dedusting ratio of described rear potential electrical field and described the first electric field.
9. the system of obtaining according to claim 8, is characterized in that, described acquiring unit comprises:
The first computation subunit, for according to k
1=t
1/ t
2calculate described target dedusting ratio, wherein, k
1for target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
10. the system of obtaining according to claim 8, is characterized in that, described acquiring unit comprises:
The second computation subunit, for according to k
4=t
1/ t
2calculate the reference dedusting ratio of described rear potential electrical field and described the first electric field;
Obtain subelement, obtain described rear potential electrical field and the historical dedusting ratio of described the first electric field;
The 3rd computation subunit, utilizes k=k
4/ 2+k
5/ 2 calculate described target dedusting ratio, wherein, and k
4for with reference to dedusting ratio, k
5be historical dedusting ratio, k is target dedusting ratio, t
1be the first sedimentation time, t
2it was the second sedimentation time.
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| CN201310730814.6A CN103706481B (en) | 2013-12-26 | 2013-12-26 | The acquisition methods of sintering system many electric-field dust collectors electric field dedusting ratio and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588214B (en) * | 2014-12-15 | 2017-06-23 | 中冶长天国际工程有限责任公司 | Electric cleaner rate of discharge acquisition methods and device, except dust quantity acquisition methods and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6227054A (en) * | 1985-07-26 | 1987-02-05 | Mitsubishi Heavy Ind Ltd | Dust discharging device |
| JPS6245310A (en) * | 1985-08-19 | 1987-02-27 | ウアルタ−・ウント・コンパニ−・アクチエンゲゼルシヤフト | Level monitor apparatus |
| CN101556114A (en) * | 2009-04-14 | 2009-10-14 | 柳州钢铁股份有限公司 | Sintering dust-removal air pressure homogenizing method and system |
| CN201613182U (en) * | 2010-04-20 | 2010-10-27 | 戴明君 | Corona blue light dust collector |
| CN202968583U (en) * | 2012-12-15 | 2013-06-05 | 武钢集团昆明钢铁股份有限公司 | Dust removal device for automatically controlling ash transportation |
-
2013
- 2013-12-26 CN CN201310730814.6A patent/CN103706481B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6227054A (en) * | 1985-07-26 | 1987-02-05 | Mitsubishi Heavy Ind Ltd | Dust discharging device |
| JPS6245310A (en) * | 1985-08-19 | 1987-02-27 | ウアルタ−・ウント・コンパニ−・アクチエンゲゼルシヤフト | Level monitor apparatus |
| CN101556114A (en) * | 2009-04-14 | 2009-10-14 | 柳州钢铁股份有限公司 | Sintering dust-removal air pressure homogenizing method and system |
| CN201613182U (en) * | 2010-04-20 | 2010-10-27 | 戴明君 | Corona blue light dust collector |
| CN202968583U (en) * | 2012-12-15 | 2013-06-05 | 武钢集团昆明钢铁股份有限公司 | Dust removal device for automatically controlling ash transportation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588214B (en) * | 2014-12-15 | 2017-06-23 | 中冶长天国际工程有限责任公司 | Electric cleaner rate of discharge acquisition methods and device, except dust quantity acquisition methods and device |
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|---|---|
| CN103706481B (en) | 2016-04-20 |
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