CN102363090A - Automatic control method for small-sized bag type dust remover - Google Patents

Automatic control method for small-sized bag type dust remover Download PDF

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Publication number
CN102363090A
CN102363090A CN2011102748333A CN201110274833A CN102363090A CN 102363090 A CN102363090 A CN 102363090A CN 2011102748333 A CN2011102748333 A CN 2011102748333A CN 201110274833 A CN201110274833 A CN 201110274833A CN 102363090 A CN102363090 A CN 102363090A
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deashing
ash
pulse valve
unload
num
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CN2011102748333A
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CN102363090B (en
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马智慧
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Zhejiang Wen Guo heavy industry Machinery Co., Ltd.
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Wisdri Engineering and Research Incorporation Ltd
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Abstract

The invention provides an automatic control method for a small-sized bag type dust remover. The automatic control method comprises an interval jump dust removing process of the dust remover, a dust discharging control process of the dust remover, a centralized overhaul control process and a centralized overhaul/automatic dust removing switch control process; the bag type dust remover is generally positioned in the interval jump dust removing process of the dust remover after the bag type dust remover is opened; interruption conditions of the centralized overhaul process are artificially set; and the interruption priority of the centralized overhaul control process is higher than other control processes. According to the automatic control method disclosed by the invention, any interval jump dust removal in the dust removing process of the small-sized bag type dust remover is realized; the optimal control over the dust removing process is realized; the memory function of the dust conveying and discharging process of the small-sized bag type dust remover is realized; and the reasonability and the safety of the dust conveying and discharging process are ensured.

Description

The autocontrol method of small-sized sack cleaner
Technical field
The invention belongs to pulse bag type dust collector system control field, the Automatic Control Strategy of particularly small-sized sack-duster pulse soot cleaning system and defeated ash discharging system.
Background technology
Perfecting day by day of the raising of Along with people's environmental consciousness and environmental regulation, iron and steel enterprise is used as a vital task to the improvement dust pollution and grabs.Advantage such as small-sized sack cleaner is little because of its floor space, high efficiency, operating cost are low; Be suitable for very much the dedustings in dust pollution zone on a small scale such as blast furnace crude fuel transportation transfer station, play an important role for administering these regional dust pollutions.
Dedusting zone, small-sized sack cleaner place Dust Capacity is little, and its dust-removing box number thereby fewer is about 2-4, and in its soot cleaning system, small-sized deduster is not generally established blowing-out valve (in order to guarantee filter effect), and deashing process is an online ash removal; In defeated ash discharging system, grey storehouse in the middle of small-sized deduster does not generally have, the ash in the dust collector ash hopper directly is discharged in the ash bucket of automobile through unloading valve, scraper plate machine, bucket loader or dustless ash-discharging device successively.Small-sized sack cleaner, soot cleaning system circuit mainly adopt the pulse valve control mode of matrix form one-to-many, the point-to-point control mode of the general employing of ash discharging system circuit.
The existing Automatic Control Strategy of small-sized sack cleaner is: one, progressive control mode is adopted in deashing control, carries out deashing work by first casing successively to a last casing that is:, and pulse valve is jetted to last from first successively in each casing.Progressive deashing logic is simply controlled conveniently, but there are some researches show the continuous winding-up of adjacent pulse valve, causes the hypotony of a certain casing compressed air bag easily, can't guarantee the effect of jetting, and can't realize the optimal control of the process of jetting; Two, unloading grey process is progressive loop control, that is: when receive unload grey initiation command after, from No. 1 ash bucket to last ash bucket successively successively circulation unload ash, receive that unloading ash ceases and desist order after, stop to unload ash.Existing control strategy can be realized the automatic ash removing and the automatic ash-discharging of deduster; But, influenced the ash-removal effect of deduster to a certain extent, in addition because of the jump deashing of combining closely and to realize (arbitrary interval) of its shortage with small-sized deduster inherent characteristics; The automatic ash-discharging flow process is always since No. 1 unloading valve; Begin to unload ash successively, when receive stop defeated unloading the ash instruction after, stop to unload ash and time-delay stops ash-transmission system.This automatic ash-discharging strategy that does not have memory function causes the ash bucket accumulation dust after numbering is leaned on too much easily, makes that unloading grey process exists hidden danger.
Therefore, a kind of new type auto control strategy to small-sized sack cleaner arises at the historic moment.
Summary of the invention
Technical problem to be solved by this invention is: to the deficiency of existing small-sized sack cleaner Automatic Control Strategy; The Automatic Control Strategy of combining closely with it is provided; Realize the arbitrary interval jump deashing of small-sized sack cleaner deashing process, realize the optimal control of deashing process; Realize the defeated memory function of unloading grey process of small-sized sack cleaner, guarantee defeated reasonability and security of unloading grey process.
The technical scheme that the present invention adopted is: the autocontrol method of small-sized sack cleaner; It comprises deduster interval skip deashing process, deduster is defeated unloads grey control procedure, concentrates the maintenance control procedure and concentrates maintenance/automatic ash removing switching controls process; Deduster interval skip deashing process is used for the control of sack cleaner automatic ash removing process; Deduster is defeated to be unloaded grey control procedure and is used for the defeated startup of unloading grey process of sack cleaner, unloads ash and stops the control of flow process; Concentrate the maintenance control procedure to be used for control, concentrate maintenance/automatic ash removing switching controls process to be used for concentrating the control of two-way switching between maintenance process and the deduster interval skip deashing process specifying dirt pocket to concentrate maintenance process; Said sack cleaner is in deduster interval skip deashing process after opening usually, and said deduster defeated unloads grey process and have memory function; The interrupt condition of concentrating the maintenance control procedure concentrates the interrupt priority level of maintenance control procedure to be higher than all the other control procedures by artificial setting.The deashing of deduster is with defeated to unload ash be two independently processes.
Described method, deduster interval skip deashing process comprise timing and hinder two kinds of deashing patterns surely that deduster interval skip deashing process comprises pulse valve number coding, number setting of deashing pulse valve and pulse valve number decoding, four steps of the actuating of relay successively.
Described method, the pulse valve Methods for Coding is: establishing the dedusting storehouse has n, and there is m pulse valve in each dedusting storehouse, establishes pulse valve sum N=m*n; With the pulse valve in all dedusting storehouses number consecutively from the beginning to the end, establish the num that is numbered of each pulse valve, then the span of num is the natural number of 1~N.
Described method, the method for deashing pulse valve number setting is:
A1) at first set interval pulse valve number Δ num, wherein 0<=Δ num<N;
A2) current deashing pulse valve num is set to Base Serial Number num 0, the num when wherein for the first time getting into step a2 0Be set to 1; If num 0<N gets into next step; If num 0>=N goes to step a5;
A3) pulse valve of next one winding-up number is set to num+ Δ num+1, gets into next step then;
A4) when the difference of the pulse valve numbering of next one winding-up and pulse valve sum N during, be back to step a3 more than or equal to (Δ num+1); Otherwise num 0=num 0+ 1, be back to step a2 then;
A5) the record pulse valve that remained to be set number successively stops deashing pulse valve assignment procedure.
Described method; The method of pulse valve number decoding is: all pulse valves that are set numbering num are decoded as the pulse valve relay of needs action and the numbering of casing selective relay one by one; Wherein the pulse valve relay be numbered (num-1) %m+1, the casing selective relay be numbered [num/m]+1.
Described method, the method for the actuating of relay is:
B1) when timing to or pressure difference when reaching setting value, said jetting deashing system deashing begins;
B2) judge in proper order by setting whether current dedusting storehouse belongs to current needs and select the dedusting bin, if casing selective relay normally opened contact gets electric, gets into next step then, otherwise goes to step b5; If get into for the first time step b2, dedusting storehouse then current to be judged number is No. 1;
B3) judge in proper order by setting whether current pulse valve belongs to the pulse valve of current needs action, if the pulse valve relay normally open contact gets electric, treat the pulse valve working time to after with the relay outage and get into next step; If pulse valve current to be judged is not the pulse valve that need move instantly, and current pulse valve as yet not in the pulse valve scope of action, then gets into next step after decoding; If in the pulse valve scope that pulse valve current to be judged has not moved as yet, go to step b6 after decoding; If in current dedusting storehouse, be to get into step b3 for the first time, pulse valve then current to be judged number is No. 1;
B4) if the pulse valve of current judgement number<m, the pulse valve of current judgement number is added 1, be back to step b3 then; Otherwise get into next step;
B5) if the dedusting storehouse<n of current judgement, the dedusting storehouse of current judgement number is added 1, be back to step b2 then; Otherwise go to step b2 after dedusting storehouse current to be judged number put 1;
B6) finish current deashing process, wait for the next deashing commencing signal that satisfies regularly or hinder the deashing condition surely, after obtaining signal, be back to step b1.
Described method, deduster is defeated to be unloaded grey control procedure and comprises successively and defeatedly unload grey start-up control flow process and unload ash and stop control flow with defeated.
Described method, defeated unload grey start-up control flow process and may further comprise the steps:
C1) unload after grey truck comes to the position, send the defeated grey flow startup instruction of unloading, start defeated grey flow startup;
C2) start dustless ash-discharging device, time-delay a period of time T 21The back starts the scraper plate machine, scraper plate machine operation a period of time T 22After, enter into and unload grey flow process;
C3) in unloading ash startup flow process, at first read and unloaded the unloading valve numbering of unloading ash when ash finishes last time, if memory value is 0 or 1, waits to unload grey unloading valve and be recorded as No. 1, get into next step; If memory be numbered X>1, wait that then the unloading valve that unloads ash is recorded as X number, gets into next step;
C4) judge whether the unloading valve wait to unload ash number belongs to and unload in the grey scope and whether satisfy and unload grey condition, if yes, get into next step; If in unloading grey scope, perhaps do not received to stop to unload the ash instruction, changed step c7 over to; If wait to unload the unloading valve of ash because can't not unload ash the time, change step c6 in concentrated position or fault own;
C5) read the unloading valve number that current needs unload ash, open corresponding unloading valve and unload ash, unload the ash back that finishes and get into next step;
C6) the current unloading valve numbering of waiting to unload ash is added 1 after, return step c4;
C7) finish the defeated ash that unloads and start flow process.
Described method, the defeated ash that unloads stops control flow and is: after treating that the discharging truck reaches high charge level, send and stop the defeated ash instruction of unloading, change step c4 over to and jump out and unload the ash circulation, a period of time T then delays time 31After stop the scraper plate machine, a period of time T again delays time 32After stop dustless ash-discharging device; Treat whole defeated unloading after grey process stops, providing the defeated ash that unloads and stop the prompting of flow process end signal, unload grey truck and drive away.
Described method, concentrate the maintenance control procedure and concentrate maintenance/automatic ash removing switching controls process to be specially:
Concentrate the maintenance control procedure to be: to get into the maintenance pattern, specify every separated fixed time of any pulse valve of any dedusting bin once to jet at the host computer picture, with maintenance debugging to this pulse valve;
Concentrate maintenance/automatic ash removing switching controls process to be: to overhaul the pattern rank and have high interrupt function; In deduster interval skip deashing process, receive in this and have no progeny; To ongoing timing deashing with hinder deashing process surely and unconditionally interrupt; Get into the maintenance pattern, and the pulse valve of specifying appointment in the bin is carried out the periodic breaks winding-up, accomplish overhaul of the equipments and debugging; When switching to regularly the deashing pattern by the maintenance pattern, compare current time T nConcluding time T with last cleaning cycle 0Time difference whether satisfied regularly deashing condition, if satisfy the deashing that then gets started one-period,, then continue to wait for to the deashing that begins one-period after the timing condition satisfies if do not satisfy; When switching to by the maintenance pattern when deciding the resistance pattern, whether begin the deashing work of one-period according to the pressure reduction conditional decision; When being switched to by timing mode when deciding the resistance pattern, the current deashing that carries out continues, treat that this cycle deashing finishes after, begin to get into and decide resistance pattern deashing; When deciding the resistance pattern when switching to timing mode, the current deashing that carries out continues, be with this cycle deashing to finish after, begin to get into the timing mode deashing.
Advantage of the present invention: the Automatic Control Strategy of small-sized sack cleaner provided by the present invention; Combine closely with small-sized sack cleaner self work characteristics; Realize the arbitrary interval jump deashing of small-sized sack cleaner deashing process; Realize maintenance and unperturbed switching automatically, realized the optimal control of deashing process; Realize the defeated memory function of unloading grey process of small-sized sack cleaner, guarantee defeated reasonability and security of unloading grey process.
Description of drawings
Fig. 1 is the common matrix control circuit of small-sized sack cleaner soot cleaning system.
Fig. 2 is the sketch map that the present invention jumps the storehouse controller.
Fig. 3 is the control sketch map of pulse valve relay.
Fig. 4 is the defeated ash beginning control procedure of unloading.
Fig. 5 defeated unload ash and stops control procedure.
Fig. 6 is small-sized bag-type dust removing system figure.
Fig. 7 is the side view of Fig. 6.
Among the figure, 1: pulse valve, 12 of each casings; 2: casing selective relay, 1 of each casing; 3: the pulse valve relay amounts to 12; 4: upper box and blowing device; 5: middle casing; 6: ash bucket; 7: filter bag; 8: unloading valve.
The specific embodiment
Small-sized sack cleaner is generally online ash removal, in the deashing strategy, at first, sets up the notion of pulse valve numbering, and the pulse valve of all casings number consecutively from the beginning to the end, the numbering note is made num, and num be numeral (m, the pulse valve number that each casing is interior from 1 to m*n; N, the casing number); Then, set interval pulse valve number Δ num (0<=Δ num<num); At last, the deashing strategy is realized the jump deashing based on num and two data of Δ num.Unload in the grey strategy defeated, at first, receive for the first time defeated when unloading grey startup command, start by sequence dustless ash-discharging device or bucket elevator, delayed startup scraper plate machine; Then, open the ash bucket unloading valve No. 1, treat that No. 1 ash bucket unloading valve is closed after, No. 2 ash bucket unloading valves of Time Delay Opening.If this moment, system received that unloading ash ceases and desist order because reason such as truck ash storehouse is full, note the current unloading valve that is unloading ash number, close this unloading valve, time-delay closing scraper plate machine, time-delay stops dustless ash-discharging device.Wait to receive and unload the ash beginning next time; Begin to unload ash from the unloading valve of last registration; Ash is unloaded in position when memory function has been guaranteed to unload ash and always finished since last time, has guaranteed that the long-term grey process of unloading is the circulation in the ring, thereby has avoided certain grey storehouse not unload the situation of ash for a long time.
Specifically describe through the specific embodiment formula below in conjunction with accompanying drawing, but do not do the foundation of any restriction as the present invention.
Embodiments of the invention: pulse bag type dust collector of the present invention has 4 dedusting bins; Single layout; Each bin has 12 magnetic valves, and its winding-up circuit is the matrix form control circuit of one-to-many, and is as shown in Figure 1; Its ash discharging system is made up of the unloading valve in dustless ash-discharging device, scraper plate machine and four grey storehouses, and ash discharging system equipment is point-to-point control mode.Below in conjunction with accompanying drawing, introduce the new type auto control strategy of small-sized sack cleaner in detail.
In casing 1, the negative pole COM1 of all pulse valves 1 and the 0V that is connected to the control power supply after casing selective relay 3 normally opened contacts are connected, the anodal MC of pulse valve 1 be connected to the 24V that controls power supply after pulse valve relay 2 normally opened contacts are connected.Be provided with pulse valve 1 in upper box and the blowing device 4, pulse valve 1 is positioned at filter bag 7 tops, casing 5 during the outlet of filter bag 7 belows is provided with, and exit, middle casing 5 below is connected to ash bucket 6.
(1) deduster is failed and is unloaded grey control strategy:
Defeated unload grey control strategy and start the flow process control strategy and stop flow process control strategy two parts and constitute, shown in accompanying drawing 2 with the defeated ash that unloads by the defeated ash that unloads.Wherein, the defeated ash startup flow process control strategy that unloads is a defeated core of unloading grey control strategy among the present invention.Wait to unload after grey truck comes to the position, send the defeated grey flow startup instruction of unloading.At this moment, defeated grey flow startup that is: starts dustless ash-discharging device, and time-delay T21 starts the scraper plate machine, behind scraper plate machine operation a period of time T22, enters into and unloads grey flow process.Start in the flow process unloading ash, at first read and unloaded the unloading valve numbering of unloading ash when ash finishes last time, if memory be numbered 0, then expression is unloaded grey flow process and is started for the first time; If memory be numbered X (X=1,2,3,4), the unloading valve that unloads ash that then was expressed as when unloading ash last time and stopping to be numbered X.If memory value is 0 or 1, then unload ash since No. 1 unloading valve; If memory value is X, then begin to unload ash from the X unloading valve.Unload the circulation of grey process ring-type, all do not satisfy until all unloading valves and unload grey conditioned disjunction and receive and stop to unload the ash order, jump out just now and unload grey flow process.The grey process of unloading of unloading valve is supported skip functionality, promptly waits to unload the unloading valve of ash because can't not unload ash in concentrated position or fault own the time, unloads grey process and will point to next unloading valve automatically and unload ash.
The defeated ash that unloads stops the flow process control strategy and is: after treating that the discharging truck reaches high charge level, send and stop the defeated ash instruction of unloading, at first unload grey process and stop, that is: jump out and unload the ash circulation, then, time-delay T31 stops the scraper plate machine, and the T32 that delays time again stops dustless ash-discharging device.Be with whole defeated unload ash and stop after, provide the defeated ash that unloads and stop the prompting of flow process end signal, unload grey truck and drive away.
(2) the arbitrary interval jump deashing strategy of soot cleaning system
Automatically control employing pressure reduction (fixed resistance) and regularly two kinds of control modes.Jump deashing strategy has three partial contents, that is: coding jumps, decoding.One, the coding of pulse valve numbering, the pulse valve of all casings number consecutively from the beginning to the end, the numbering note is made num, and deduster has 4 casings in this example, and 12 pulse valves are respectively arranged, so pulse valve from first to last is numbered: 1,2,3 ..., 46,47,48.Two,, hop sequence is the core of jump deashing strategy, and the judgement that the one-period deashing is accomplished is the key that realizes the hop sequence of arbitrary interval.The pulse valve winding-up is by the beginning that is numbered 1, and the pulse valve of winding-up number each press (Δ num+1) increases; Pulse valve to be jetted numbering is with 48 difference during less than (Δ num+1), and the pulse valve winding-up is from being numbered 2 the winding-up that begins, and the pulse valve of winding-up is number each to be increased by (Δ num+1); Pulse valve to be jetted numbering is with 48 difference during less than (Δ num+1), and the pulse valve winding-up is from being numbered 3 the winding-up that begins, and each value by (Δ num+1) increases; Pulse valve to be jetted numbering is with 48 difference during less than (Δ num+1); Pulse valve is jetted from the winding-up that begins that is numbered 4 ..., begin winding-up from being numbered by (Δ num+1) until the pulse valve winding-up; Each value by (Δ num+1) increases; Wait to jet numbering with 48 difference during less than (Δ num+1), this cycle winding-up finishes, and waits for getting into the next winding-up cycle.For example: as Δ num=3, the deashing that then jumps is in proper order: 1,5,9 ..., 37,41,45>>>2,6; 10 ..., 38,42,46>>>3,7,11 ..., 39; 43,47>>>4,8,12 ..., 40,44,48>>>this cycle jump deashing completion, wait for getting into next cleaning cycle.Three, the pulse valve that will jet is decoded as pulse valve relay and the casing selective relay that needs action; The winding-up action completion of pulse valve needs the compound action of pulse valve relay and casing selective relay to realize; If the pulse valve of winding-up is numbered num; " [num/12]+1 " individual casing selective relay coil gets electricly so, and " (num-1) %12+1 " individual pulse valve relay gets electric, for example: num=15; Then: the 2nd casing selective relay gets electric, and the 3rd pulse valve relay gets.The square brackets of aforementioned decode procedure are represented to round, and percentage sign representes to get remainder.
(3) concentrate the maintenance pattern and with the intelligent switching control strategy of automatic ash removing process:
Concentrate the maintenance pattern, that is: specify every separated fixed time of any pulse valve of any bin once to jet at the host computer picture, make things convenient for the maintenance debugging of paired pulses valve.Concentrating needs between maintenance pattern and the automatic ash removing pattern rationally to switch, and maintenance pattern rank has high interrupt function.When soot cleaning system gets into the maintenance pattern, then ongoing timing deashing with hinder deashing process surely and unconditionally interrupt, and the pulse valve of specifying appointment in the bin is carried out periodic breaks winding-up, completion overhaul of the equipments and debugging; When switching to regularly the deashing pattern by the maintenance pattern; Current time Tn and T0 (timing deashing or hinder surely under the deashing pattern relatively; Whether the time difference concluding time of last cleaning cycle) has satisfied regularly deashing condition; If satisfy the deashing then get started one-period,, then continue to wait for to the deashing that begins one-period after the timing condition satisfies if do not satisfy; When switching to by the maintenance pattern when deciding the resistance pattern, whether begin the deashing work of one-period according to the pressure reduction conditional decision; When being switched to by timing mode when deciding the resistance pattern, the current deashing that carries out continues, treat that this cycle deashing finishes after, begin to get into and decide resistance pattern deashing; When deciding the resistance pattern when switching to timing mode, the current deashing that carries out continues, be with this cycle deashing to finish after, begin to get into the timing mode deashing.

Claims (10)

1. the autocontrol method of small-sized sack cleaner; It is characterized in that: it comprises deduster interval skip deashing process, deduster is defeated unloads grey control procedure, concentrates the maintenance control procedure and concentrates maintenance/automatic ash removing switching controls process; Deduster interval skip deashing process is used for the control of sack cleaner automatic ash removing process; Deduster is defeated to be unloaded grey control procedure and is used for the defeated startup of unloading grey process of sack cleaner, unloads ash and stops the control of flow process; Concentrate the maintenance control procedure to be used for control, concentrate maintenance/automatic ash removing switching controls process to be used for concentrating the control of two-way switching between maintenance process and the deduster interval skip deashing process specifying dirt pocket to concentrate maintenance process; Said sack cleaner is in deduster interval skip deashing process after opening usually, and said deduster defeated unloads grey process and have memory function; The interrupt condition of concentrating the maintenance control procedure concentrates the interrupt priority level of maintenance control procedure to be higher than all the other control procedures by artificial setting.
2. method according to claim 1; It is characterized in that; Deduster interval skip deashing process comprises timing and hinders two kinds of deashing patterns surely that deduster interval skip deashing process comprises pulse valve number coding, number setting of deashing pulse valve and pulse valve number decoding, four steps of the actuating of relay successively.
3. method according to claim 2 is characterized in that, the pulse valve Methods for Coding is: establishing the dedusting storehouse has n, and there is m pulse valve in each dedusting storehouse, establishes pulse valve sum N=m*n; With the pulse valve in all dedusting storehouses number consecutively from the beginning to the end, establish the num that is numbered of each pulse valve, then the span of num is the natural number of 1~N.
4. method according to claim 3 is characterized in that, the method for deashing pulse valve number setting is:
A1) at first set interval pulse valve number Δ num, wherein 0<=Δ num<N;
A2) current deashing pulse valve num is set to Base Serial Number num 0, the num when wherein for the first time getting into step a2 0Be set to 1; If num 0<N gets into next step; If num 0>=N goes to step a5;
A3) pulse valve of next one winding-up number is set to num+ Δ num+1, gets into next step then;
A4) when the difference of the pulse valve numbering of next one winding-up and pulse valve sum N during, be back to step a3 more than or equal to (Δ num+1); Otherwise num 0=num 0+ 1, be back to step a2 then;
A5) the record pulse valve that remained to be set number successively stops deashing pulse valve assignment procedure.
5. method according to claim 4; It is characterized in that; The method of pulse valve number decoding is: all pulse valves that are set numbering num are decoded as the pulse valve relay of needs action and the numbering of casing selective relay one by one; Wherein the pulse valve relay be numbered (num-1) %m+1, the casing selective relay be numbered [num/m]+1.
6. method according to claim 5 is characterized in that, the method for the actuating of relay is:
B1) when timing to or pressure difference when reaching setting value, said jetting deashing system deashing begins;
B2) judge in proper order by setting whether current dedusting storehouse belongs to current needs and select the dedusting bin, if casing selective relay normally opened contact gets electric, gets into next step then, otherwise goes to step b5; If get into for the first time step b2, dedusting storehouse then current to be judged number is No. 1;
B3) judge in proper order by setting whether current pulse valve belongs to the pulse valve of current needs action, if the pulse valve relay normally open contact gets electric, treat the pulse valve working time to after with the relay outage and get into next step; If pulse valve current to be judged is not the pulse valve that need move instantly, and current pulse valve as yet not in the pulse valve scope of action, then gets into next step after decoding; If in the pulse valve scope that pulse valve current to be judged has not moved as yet, go to step b6 after decoding; If in current dedusting storehouse, be to get into step b3 for the first time, pulse valve then current to be judged number is No. 1;
B4) if the pulse valve of current judgement number<m, the pulse valve of current judgement number is added 1, be back to step b3 then; Otherwise get into next step;
B5) if the dedusting storehouse<n of current judgement, the dedusting storehouse of current judgement number is added 1, be back to step b2 then; Otherwise go to step b2 after dedusting storehouse current to be judged number put 1;
B6) finish current deashing process, wait for the next deashing commencing signal that satisfies regularly or hinder the deashing condition surely, after obtaining signal, be back to step b1.
7. method according to claim 1 is characterized in that, deduster is defeated to be unloaded grey control procedure and comprise successively and defeatedly unload grey start-up control flow process and unload ash and stop control flow with defeated.
8. method according to claim 7 is characterized in that, defeated unload grey start-up control flow process and may further comprise the steps:
C1) unload after grey truck comes to the position, send the defeated grey flow startup instruction of unloading, start defeated grey flow startup;
C2) start dustless ash-discharging device, time-delay a period of time T 21The back starts the scraper plate machine, scraper plate machine operation a period of time T 22After, enter into and unload grey flow process;
C3) in unloading ash startup flow process, at first read and unloaded the unloading valve numbering of unloading ash when ash finishes last time, if memory value is 0 or 1, waits to unload grey unloading valve and be recorded as No. 1, get into next step; If memory be numbered X>1, wait that then the unloading valve that unloads ash is recorded as X number, gets into next step;
C4) judge whether the unloading valve wait to unload ash number belongs to and unload in the grey scope and whether satisfy and unload grey condition, if yes, get into next step; If in unloading grey scope, perhaps do not received to stop to unload the ash instruction, changed step c7 over to; If wait to unload the unloading valve of ash because can't not unload ash the time, change step c6 in concentrated position or fault own;
C5) read the unloading valve number that current needs unload ash, open corresponding unloading valve and unload ash, unload the ash back that finishes and get into next step;
C6) the current unloading valve numbering of waiting to unload ash is added 1 after, return step c4;
C7) finish the defeated ash that unloads and start flow process.
9. method according to claim 8 is characterized in that, the defeated ash that unloads stops control flow and is: after treating that the discharging truck reaches high charge level, send and stop the defeated ash instruction of unloading, change step c4 over to and jump out and unload the ash circulation, a period of time T then delays time 31After stop the scraper plate machine, a period of time T again delays time 32After stop dustless ash-discharging device; Treat whole defeated unloading after grey process stops, providing the defeated ash that unloads and stop the prompting of flow process end signal, unload grey truck and drive away.
10. method according to claim 2 is characterized in that, concentrates the maintenance control procedure and concentrates maintenance/automatic ash removing switching controls process to be specially:
Concentrate the maintenance control procedure to be: to get into the maintenance pattern, specify every separated fixed time of any pulse valve of any dedusting bin once to jet at the host computer picture, with maintenance debugging to this pulse valve;
Concentrate maintenance/automatic ash removing switching controls process to be: to overhaul the pattern rank and have high interrupt function; In deduster interval skip deashing process, receive in this and have no progeny; To ongoing timing deashing with hinder deashing process surely and unconditionally interrupt; Get into the maintenance pattern, and the pulse valve of specifying appointment in the bin is carried out the periodic breaks winding-up, accomplish overhaul of the equipments and debugging; When switching to regularly the deashing pattern by the maintenance pattern, compare current time T nConcluding time T with last cleaning cycle 0Time difference whether satisfied regularly deashing condition, if satisfy the deashing that then gets started one-period,, then continue to wait for to the deashing that begins one-period after the timing condition satisfies if do not satisfy; When switching to by the maintenance pattern when deciding the resistance pattern, whether begin the deashing work of one-period according to the pressure reduction conditional decision; When being switched to by timing mode when deciding the resistance pattern, the current deashing that carries out continues, treat that this cycle deashing finishes after, begin to get into and decide resistance pattern deashing; When deciding the resistance pattern when switching to timing mode, the current deashing that carries out continues, be with this cycle deashing to finish after, begin to get into the timing mode deashing.
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CN102824794A (en) * 2012-09-13 2012-12-19 山东开泰工业科技有限公司 Intelligent controller applied to pulse dust collector
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CN103801162A (en) * 2014-03-07 2014-05-21 中冶南方工程技术有限公司 Pulse-controller-based bag-type dust removal optimization control method
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CN104437877A (en) * 2014-12-15 2015-03-25 中冶长天国际工程有限责任公司 Method and device for determining discharging time sequence
CN104437877B (en) * 2014-12-15 2017-01-25 中冶长天国际工程有限责任公司 Method and device for determining discharging time sequence
CN105233588A (en) * 2015-11-17 2016-01-13 光大环保技术研究院(深圳)有限公司 Control system and method used for pulse dust removal of bag-type dust remover
CN105233588B (en) * 2015-11-17 2017-07-28 光大环保技术研究院(深圳)有限公司 Control system and control method for sack cleaner pulse dust cleaning
CN106237744A (en) * 2016-08-19 2016-12-21 北京京城环保股份有限公司 A kind of matrix form dust cleaning control method of many bins sack cleaner
CN106237744B (en) * 2016-08-19 2018-11-06 北京京城环保股份有限公司 A kind of matrix form dust cleaning control method of more warehouse bag filters
CN108237118A (en) * 2017-12-28 2018-07-03 北京首钢自动化信息技术有限公司 A kind of electric precipitation is blown control method

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