CN107617283B - Dynamic pulse interval control system for ash removal of pulse bag type dust collector - Google Patents
Dynamic pulse interval control system for ash removal of pulse bag type dust collector Download PDFInfo
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- CN107617283B CN107617283B CN201710927593.XA CN201710927593A CN107617283B CN 107617283 B CN107617283 B CN 107617283B CN 201710927593 A CN201710927593 A CN 201710927593A CN 107617283 B CN107617283 B CN 107617283B
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Abstract
The invention discloses a system and a method for controlling ash removal dynamic pulse intervals of a pulse bag type dust collector. A pressure sensor or a pressure transmitter 1 is arranged on the ash removal air compression pipeline 4 or the ash removal air bag 5, and a pressure signal detected in real time is transmitted to the electronic component 2 through a wire or a cable 3; determining the establishment time T1 of the ash removal compressed air pressure in the electronic component 2 by taking the ash removal compressed air pressure set value P as a control basis; the electronic component 2 is provided with a short timer T2, the electronic component 2 compares the ash removal pressure signal with the ash removal compressed air pressure set value P and the like, and starts the short timer T2 when the ash removal pressure signal reaches the ash removal compressed air pressure set value P; after the timing of the short-time timer T2 is finished, the electronic component 2 drives the pulse valve 6 through the wire or cable 3 to perform pulse dust cleaning of the pulse bag type dust collector 7. The invention realizes the dynamic control of the ash cleaning pulse interval ST time through the ash cleaning dynamic pulse interval DT, prolongs the service life of the ash cleaning pulse valve, and realizes the optimal ash cleaning effect of the pulse bag type dust collector and the stable and reliable operation of the pulse bag type dust collector.
Description
Technical Field
The invention belongs to the technical field of pulse bag type dust removal, and relates to a dynamic pulse interval control system for ash removal of a pulse bag type dust remover, in particular to a control system for pulse interval ST between the work of ash removal pulse valves in the ash removal process of the pulse bag type dust remover.
Background
The ash removal of the pulse bag type dust collector depends on a pulse valve, the pulse valve is arranged on an air bag, the pulse valve is driven by an electromagnetic valve, and the electromagnetic valve is driven by an electronic component.
The ash removal medium of the pulse bag type dust collector is generally compressed air, including compressed air, compressed nitrogen and the like; the electromagnetic valve and the pulse valve form a dust cleaning pulse valve; the ash removal control electronic component can be a pulse controller, a Programmable Logic Controller (PLC), a DCS control system or the like; the ash cleaning device of the pulse bag type dust collector is composed of a plurality of ash cleaning pulse valves.
During the ash removal process of the pulse bag type dust collector, ash removal compressed air enters an air bag and reaches a certain pressure, an electronic component generates a pulse electrical signal to drive an ash removal pulse valve consisting of an electromagnetic valve and a pulse valve, the ash removal pulse valve is opened during the pulse electrical signal generated by the electronic component, and the compressed air in the air bag instantly enters the pulse bag type dust collector to realize the ash removal action (one row or one group of filter bags) of a single ash removal pulse valve of the pulse bag type dust collector.
A plurality of sequential pulse electric signals generated by electronic components sequentially drive a plurality of ash removal pulse valves to realize ash removal of the pulse bag type dust collector, and each ash removal pulse valve in the plurality of sequentially arranged ash removal pulse valves works once under the control of the electronic components, so that air is supplemented to the air bag once through an air compression air source; when the air bag is used for air supplement, the compressed air in the air bag is required to have enough pressure to perform dust removal and achieve the effect of removing dust from the filter bag, the pressure in the air bag is required not to be too high so as to damage the dust removal pulse valve and reduce the service life of the dust removal pulse valve, and the too low pressure in the air bag can also influence the action reliability of the dust removal pulse valve and reduce the service life of the dust removal pulse valve, particularly a pulse valve membrane.
In the ash cleaning process of the pulse bag type dust collector, the time interval between each ash cleaning pulse valve which works in sequence, namely the pulse interval time, comprises the compressed air pressure establishment time of the air bag air supply process in the pulse interval time after compressed air in the air bag is released in the ash cleaning action pulse width, namely the pulse time.
At present, it is known that, in the process of cleaning dust by a pulse bag type dust collector, a fixed pulse interval is adopted to control dust cleaning pulse valves, and all the dust cleaning pulse valves work in turn according to a preset pulse interval sequence; in the prior art, the pulse interval of the ash removal process of the pulse bag type dust collector is the pulse interval time with a fixed time length preset on the ash removal control electronic component.
When the air supply flow is too small in the air supply process of the air bag, the ash removal control electronic component finishes the action of the ash removal pulse valve at regular time according to the preset fixed pulse interval under the condition that the optimal working pressure of the ash removal pulse valve is not reached, so that the problems are caused that at the moment, the ash removal effect of the pulse bag type dust collector is poor due to low ash removal air pressure; and secondly, the ash removal pulse valve is unreliable in work due to low compressed air pressure, and the service life of a working membrane of the ash removal pulse valve is also influenced. In addition, for a large-scale multi-chamber pulse bag type dust collector, due to the fact that the length of air bag air supply pipelines of each chamber is different, ash removal air compression pressure is established for different time, fixed pulse intervals are adopted, ash removal air compression pressure is inconsistent when each ash removal pulse valve works, ash removal effects of each chamber are inconsistent, smoke load of each chamber is distributed unevenly, and efficient and long-life stable operation of the pulse bag type dust collector is reduced or influenced.
Disclosure of Invention
The invention provides a pulse bag type dust collector ash removal dynamic pulse interval control system and a method thereof aiming at the defects of the prior art, the interval time between each ash removal pulse valve of the pulse bag type dust collector, namely the dynamic pulse interval DT is controlled by taking the pressure of the ash removal compressed air pressure establishment time T1 as the basis, the dynamic control of the ash removal pulse interval ST time is realized, and the purposes of prolonging the service life of the ash removal pulse valve, realizing the optimal ash removal effect of the pulse bag type dust collector and long-life, stable and reliable operation of the pulse bag type dust collector are achieved.
The technical solution of the invention is as follows: the ash removal dynamic pulse interval control system of the pulse bag type dust remover is characterized in that a pressure sensor or a pressure transmitter is arranged on an ash removal air compression pipeline or an ash removal air bag, and a pressure signal detected by the pressure sensor or the pressure transmitter in real time is transmitted to an electronic component of the ash removal control system of the pulse bag type dust remover through a wire or a cable; setting a dust-cleaning compressed air pressure set value P in the electronic component, detecting a dust-cleaning compressed air pressure signal by using a dust-cleaning compressed air pressure sensor or a pressure transmitter, and determining the ash-cleaning compressed air pressure establishment time T1 by taking the dust-cleaning compressed air pressure set value P as a control basis; the build-up time T1 of the pressure signal constitutes the time interval ST between the pulsed valve wheel operations of the pulse bag house as a dynamic pulse interval DT.
Furthermore, a short timer T2 is arranged on the electronic component, and the short timer T2 is used as the buffer time after the ash removal air pressure is established; when the ash removal pressure signal reaches the ash removal air compression pressure set value P, T1 is formed, and a short-time timer T2 is started by T1; after the short-time timer T2 finishes timing, the electronic component generates an ash cleaning pulse signal to drive a pulse valve through a wire or a cable to perform pulse ash cleaning of the pulse bag type dust collector; t2 is a component of the dynamic pulse interval DT, which is made up of T1 + T2 to actuate the next pulse valve of the pulse bag house.
The dynamic pulse interval DT is generated by the comparison logic operation of the pressure signal of the deashing compressed air in the deashing compressed air pipeline or the deashing compressed air bag detected by the pressure sensor or the pressure transmitter in real time and the pressure set value P of the deashing compressed air by the electronic component.
The electronic components are provided with a short-time timer T2 as a buffer time after T1, and T2 as a component of the dynamic pulse interval DT, which may or may not be used in the implementation, i.e. the next pulse valve of the pulse bag dust collector may be started by either T1 or T1 + T2 during the execution of DT.
Further, a pulse interval ST of a fixed time length is set in the electronic components as a backup for DT.
The installation of a pressure sensor or a pressure transmitter on the ash removal compressed air pipeline or the ash removal air bag adopts a common pressure process detection device, and comprises the pressure sensor, the pressure transmitter or a pressure switch and the like.
The method for controlling the ash removal dynamic pulse interval of the pulse bag type dust collector controls the interval time between the ash removal pulse valves of the pulse bag type dust collector by taking the pressure of the ash removal compressed air pressure establishment time T1 as the basis, wherein the interval time is the dynamic pulse interval time DT; the electronic component compares the ash removal compressed air pressure detected in real time with an ash removal pressure set value P and performs signal processing operation such as comparison, and when the ash removal compressed air pressure rises to be greater than or equal to the ash removal pressure set value P, the ash removal compressed air pressure establishing time T1 is formed; after the air supply pressure of the air bag is increased to the ash removal pressure set value P of the ash removal pulse interval, the timing of T1 is completed, a short-time timer T2 is started, and after the timing of the short-time timer T2 is finished, the electronic component starts the next ash removal pulse valve of the pulse bag type dust remover to continue to carry out pulse ash removal work; the dynamic pulse interval DT in the ash removing process of the pulse bag type dust collector is the sum of the establishment time T1 of the ash removing air pressure and the short-time timer T2.
The invention has the beneficial effects that: the dynamic pulse interval DT is adopted to control the ash removal of the pulse bag type dust collector, and the interval time among the ash removal pulse valves is different according to the ash removal compressed air pressure in the ash removal air bag, namely the establishment time of the ash removal compressed air pressure set value P; the dynamic pulse interval DT is adopted to control the ash removal of the pulse bag type dust collector, so that the ash removal pressure pressures of the ash removal pulse valves of the pulse bag type dust collector are consistent, and the ash removal effect is consistent; the consistency of the ash removal effect of each ash removal pulse valve can also ensure that the dust removal load of each chamber of the bag type dust remover is consistent, thereby avoiding the influence on the reliability and the service life of the bag type dust remover caused by the inconsistency of the load of each chamber; the problem of poor ash removal effect when the ash removal air compression pressure is too low can be avoided; the problems that the reliability and the service life of the ash removal pulse valve are influenced by too low and too high ash removal air pressure can be avoided.
The invention adopts the dynamic pulse interval DT to control the ash removal of the pulse bag type dust collector, can control the time interval between the actions of the ash removal pulse valves according to the air supply speed of the ash removal compressed air, can accelerate the ash removal speed of the pulse bag type dust collector, and reduces the influence of the fluctuation of the filtration resistance (pressure difference) on the work of the front-end equipment of the pulse bag type dust collector in the working process of the pulse bag type dust collector.
Drawings
FIG. 1 is a schematic diagram of a pulse bag collector ash removal dynamic pulse interval control system.
In the figure: 1. a pressure sensor or a pressure transmitter; 2. an electronic component; 3. a wire or cable; 4. a dust removal air compression pipeline; 5. ash removal compressed air bag; 6. a pulse valve; 7. pulse bag type dust collector.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention discusses the problem of the time interval between the sequential alternate working of a plurality of ash removal pulse valves, namely the ash removal pulse interval ST, in the ash removal process of the pulse bag type dust collector, and realizes the purpose of dynamically controlling the time of the ash removal pulse interval ST, namely realizing the control of the dynamic pulse interval DT in the ash removal control of the pulse bag type dust collector.
By analyzing the action process of a plurality of sequentially arranged ash removal pulse valves in the ash removal process of the pulse bag type dust collector, the working process can be obtained as follows: after the ash removal is started, the action of the first ash removal pulse valve → the pulse interval → the action of the second ash removal pulse valve → the pulse interval → the action of the third ash removal pulse valve → the pulse interval → … of the last ash removal pulse valve → the end of the waiting of the ash removal of one round entering the ash removal cycle or the ash removal of the constant pressure difference and the waiting of the ash removal process of the next round. In the working process, in the time of pulse interval, the air bag for storing the ash removal compressed air needs to complete supplement of the compressed air discharged during the action of the ash removal pulse valve, namely air supplement of the air bag, and establish stable ash removal compressed air pressure in the air bag.
The invention abandons the pulse interval ST control scheme with fixed time length and adopts the dynamic pulse interval DT control scheme which takes the ash removal compression pressure as the control basis.
As shown in fig. 1, in the ash removal dynamic pulse interval control system of the pulse bag type dust collector, a pressure sensor or a pressure transmitter 1 is installed on an ash removal air compression pipeline 4 or an ash removal air bag 5, and a pressure signal detected in real time by the pressure sensor or the pressure transmitter 1 is transmitted to an electronic component 2 of the ash removal control system of the pulse bag type dust collector through a wire or a cable 3; setting a dust-cleaning compressed air pressure set value P in the electronic component 2, detecting dust-cleaning compressed air pressure by a dust-cleaning compressed air pressure sensor or a pressure transmitter 1, and determining the ash-cleaning compressed air pressure establishment time T1 by taking the dust-cleaning compressed air pressure set value P as a control basis; a short timer T2 is arranged on the electronic component 2, and the short timer T2 is used as the buffer time after the ash removal air pressure is established; the electronic component 2 compares the ash removal pressure signal detected by the pressure sensor or the pressure transmitter 1 with the ash removal compressed air pressure set value P, and performs calculation such as comparison, and when the ash removal pressure signal reaches the ash removal compressed air pressure set value P, a T1 is formed and a short-time timer T2 is started; after the short-time timer T2 finishes timing, the electronic component 2 generates a dust cleaning pulse signal to drive the pulse valve 6 through the wire or cable 3 to execute pulse dust cleaning of the pulse bag type dust collector 7.
The method for controlling the ash removal dynamic pulse interval of the pulse bag type dust collector controls the interval time between the ash removal pulse valves 6 of the pulse bag type dust collector 7 by taking the pressure of the ash removal compressed air pressure establishment time T1 as the basis, wherein the interval time is the dynamic pulse interval time DT; the electronic component 2 compares the ash removal compressed air pressure detected in real time with an ash removal pressure set value P and performs signal processing operation such as comparison, and when the ash removal compressed air pressure rises to be greater than or equal to the ash removal pressure set value P, the ash removal compressed air pressure establishing time T1 is formed; the length of T1 depends on the establishment time of ash removal compressed air pressure P; the short timer T2 is used as the buffer time after the ash removal compressed air pressure is established, the short timer T2 is started after the air bag 5 finishes the air supply pressure rising to the ash removal pressure set value P of the ash removal pulse interval, and the electronic component 2 starts the next ash removal pulse valve 6 of the pulse bag type dust collector 7 to continue the pulse ash removal after the short timer T2 finishes timing; the dynamic pulse interval DT in the ash removal process of the pulse bag type dust collector 7 is the sum of the establishment time T1 of the ash removal air pressure and the short-time timer T2.
The electronic component 2 is provided with a short timer T2 as a buffer time after the ash removal compressed air pressure is established, the electronic component 2 starts the short timer T2 after the establishment time T1 of the ash removal compressed air pressure, and the short timer T2 starts the next ash removal pulse valve 6 of the pulse bag type dust collector 7 after the end of the timing.
Without the short timer T2, the electronic component 2 may directly initiate operation of the next ash removal pulse valve 6 of the pulse bag house 7 after the ash removal plenum pressure build-up time T1.
A pulse interval ST of a fixed time length is set in the electronic component 2 as a backup. When the pressure sensor or the pressure transmitter 1 has a fault, the ash cleaning control system of the pulse bag type dust collector 7 automatically adopts the pulse interval ST with fixed time to replace the dynamic pulse interval DT to control the working time interval of each ash cleaning pulse valve 6.
According to the forming process of the ash removal compressed air pressure establishing time T1, the length of the dynamic pulse interval DT time is related to the air supply speed or time of the ash removal compressed air of the ash removal air bag 5 of the pulse bag type dust collector 7. The shorter the ash removal compressed air establishes stable ash removal compressed air pressure in the ash removal air bag 5, namely the shorter the air supply time of the ash removal pressure set value P, the shorter the time of the dynamic pulse interval DT between the ash removal pulse valves 6 in the ash removal process of the bag type dust collector 8 is; the longer the ash removal compressed air pressure is established in the ash removal air bag 5, namely the air supply time of the ash removal pressure set value P, the longer the time of the dynamic pulse interval DT between the ash removal pulse valves 6 in the ash removal process of the bag type dust collector 7, namely the characteristic that the length of T1 depends on the establishment time of the ash removal compressed air pressure P.
The working process of the invention is as follows: in the ash removal process of the pulse bag type dust remover 7, after the ash removal work of the previous ash removal pulse valve 6 is finished, the ash removal compressed air immediately supplies the ash removal compressed air bag 5 with air for ash removal compressed air through the ash removal compressed air pipeline 4; the pressure sensor or the pressure transmitter 1 detects the pressure of the ash removal compressed air in the ash removal compressed air pipeline 4 or the ash removal air bag 5 in real time; the electronic component 2 carries out operation processing on a measurement signal for detecting the ash removal pressure in the ash removal pressure pipeline 4 or the ash removal air bag 5 in real time by a pressure sensor or a pressure transmitter 1, and then compares the measurement signal with a set ash removal pressure setting value P; the dynamic pulse interval is formed when the ash removal compressed air pressure rises to be more than or equal to the ash removal compressed air pressure set value P; meanwhile, when the ash removal compressed air pressure is greater than or equal to the ash removal compressed air pressure set value, the ash removal compressed air pressure is established for a time T1; in the electronic component 2, a buffer time short timer T2 after the ash removal air pressure is established is started by T1; the dynamic pulse interval DT is formed by the sum of the ash removal compression pressure establishment time T1 and the short timer T2; the short timer T2 times out, i.e., the dynamic pulse interval DT times out, and the electronics 2 issues a start control signal for the next ash removal pulse valve 6. In the case where the short timer T2 is not provided, the electronic component 2 can directly start the operation of the next ash removal pulse valve 6 of the pulse bag type dust collector 7 after the ash removal compressed air pressure establishment time T1, and the dynamic pulse interval DT is only composed of the ash removal compressed air pressure establishment time T1. The time interval from the end of the ash cleaning work performed by the last ash cleaning pulse valve 6 to the start of the next ash cleaning pulse valve 6 adopts a dynamic pulse interval DT, and the length of the dynamic pulse interval DT is mainly determined by the ash cleaning compressed air pressure building time T1, namely the air supply time, in the ash cleaning compressed air pipeline 4 or the ash cleaning air bag 5. The dust cleaning control task of the pulse bag type dust collector is completed in such a circulating way. The ash removal pulse interval ST having a fixed time length is also provided in the electronic component 2 to control the pulse interval as a backup. When the pressure sensor or the pressure transmitter 1 has a fault, the ash cleaning control system of the pulse bag type dust collector 7 automatically adopts the pulse interval ST with fixed time to replace the dynamic pulse interval DT to control the working time interval of each ash cleaning pulse valve 6.
The electronic component 2 can adopt a distributed control system DCS or a programmable controller PLC which is widely adopted in the dust cleaning control system of the pulse bag type dust collector 7 at present; the electronic component 2 can also adopt a pulse controller for controlling the ash removal of the pulse bag type dust collector 7, but the controller needs to be improved according to the requirement of the invention.
If the electronic component 2 adopts DCS or PLC, a ash removal compressed air pressure set value P and a buffer time short timer T2 after ash removal compressed air pressure is established are arranged in the DCS or PLC; the ash removal compressed air pressure detected by the pressure sensor or the pressure transmitter 1 is input into the DCS or the PLC through the wire and cable 3; the DCS or the PLC compares the detected ash removal compressed air pressure signal with an ash removal compressed air pressure set value P; if the ash removal compressed air pressure signal is greater than or equal to the ash removal compressed air pressure set value P, the establishment of the ash removal compressed air pressure establishment time T1 is completed; in DCS or PLC, starting a buffer time short timer T2 after the ash removal compressed air pressure is established by the establishment time T1 of the ash removal compressed air pressure; after the timing of the short timer T2 is finished, the DCS or the PLC outputs a starting control signal of the next ash cleaning pulse valve 6. Under the condition that the DCS or the PLC is not provided with the short timer T2, the DCS or the PLC can directly start the next ash cleaning pulse valve 6 of the pulse bag type dust collector 7 to work after the ash cleaning compressed air pressure is established for T1.
If the electronic component 2 is a pulse controller, the pulse controller must be modified to suit the requirements of the present invention. Firstly, the pulse controller needs to be capable of setting a dust cleaning pressure set value P and a short timer T2; secondly, the pulse control instrument needs to be capable of receiving pressure signals and has logic operation functions such as comparison operation and the like; thirdly, the pulse controller needs to complete the starting of T2 from T1 and the starting of T2 and output the starting control signal of the next ash cleaning pulse valve 6. The improved pulse controller can compare the pressure signals received by the ash removal compressed air pipeline 4 and the ash removal compressed air bag 5 with the ash removal pressure set value P to form T1, can start the timing of T2 according to the comparison operation result, and can output the starting control signal of the ash removal pulse valve 6 after the T2 timing is finished. In the case of a pulse controller without a short timer T2, the pulse controller can directly start the operation of the next ash removal pulse valve 6 of the pulse bag collector 7 after the ash removal compressed air pressure is built up for a time T1.
The start control signal of the next ash cleaning pulse valve 6 output after the dynamic pulse interval DT of the electronic component 2 is finished controls the start of the ash cleaning pulse valve 6 through the electric wire or the cable 3; after the ash removal pulse valve 6 is started and the set pulse width is maintained, the ash removal of the ash removal pulse valve 6 of the pulse bag type dust collector 7 is finished, and the ash removal air compression air supply stage of the ash removal air compression pipeline 4 and the ash removal air compression air bag 5 required by the work of the next ash removal pulse valve 6 is sequentially carried out, so that the dynamic pulse interval DT of the next ash removal pulse valve 6 is formed.
When the pressure sensor or the pressure transmitter 1 is in failure, the electronic part 2 of the ash cleaning control system of the pulse bag type dust collector 7 automatically adopts the pulse interval ST with fixed time to replace the dynamic pulse interval DT to control the working time interval of each ash cleaning pulse valve 6.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (4)
1. The ash removal dynamic pulse interval control system of the pulse bag type dust remover is characterized in that a pressure sensor or a pressure transmitter (1) is arranged on an ash removal air compression pipeline (4) or an ash removal air bag (5), and a pressure signal detected in real time by the pressure sensor or the pressure transmitter (1) is transmitted to an electronic component (2) of the ash removal control system of the pulse bag type dust remover through a wire or a cable (3); setting a dust-cleaning compressed air pressure set value P in the electronic component (2), detecting a dust-cleaning compressed air pressure signal by using a dust-cleaning compressed air pressure sensor or a pressure transmitter (1), and determining the dust-cleaning compressed air pressure establishment time T1 by using the dust-cleaning compressed air pressure set value P as a control basis; the build-up time T1 of the pressure signal constitutes the time interval ST between the alternating operation of the pulse valves (6) of the pulse bag house (7), which is the dynamic pulse interval DT.
2. The ash removal dynamic pulse interval control system of the pulse bag type dust collector as claimed in claim 1, wherein a short timer T2 is arranged on the electronic component (2), and the short timer T2 is used as a buffer time after the ash removal compression pressure is established; when the ash removal pressure signal reaches the ash removal air compression pressure set value P, T1 is formed, and a short-time timer T2 is started by T1; after the timing of the short-time timer T2 is finished, the electronic component (2) generates an ash cleaning pulse signal to drive the pulse valve (6) to perform pulse ash cleaning of the pulse bag type dust collector (7) through a wire or a cable (3); t2 is a component of the dynamic pulse interval DT which is formed by T1 + T2 to actuate the next pulse valve (6) of the pulse bag house (7).
3. The ash removal dynamic pulse interval control system of the pulse bag type dust collector as claimed in claim 1 or 2, wherein the dynamic pulse interval DT is formed by the comparison logic operation of the pressure signal of the ash removal compressed air in the ash removal compressed air pipeline (4) or the ash removal air bag (5) detected by the pressure sensor or the pressure transmitter (1) and the pressure set value P of the ash removal compressed air by the electronic component (2).
4. The pulse bag collector ash removal dynamic pulse interval control system according to claim 1 or 2, characterized in that a pulse interval ST of a fixed time length is provided in the electronic component (2) as a backup for DT.
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| CN201710927593.XA CN107617283B (en) | 2017-10-09 | 2017-10-09 | Dynamic pulse interval control system for ash removal of pulse bag type dust collector |
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| CN201710927593.XA CN107617283B (en) | 2017-10-09 | 2017-10-09 | Dynamic pulse interval control system for ash removal of pulse bag type dust collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1618943A1 (en) * | 2004-07-20 | 2006-01-25 | Esa Electronic Engineering S.r.L. | Valve control system for dust collector units |
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| CN103801162B (en) * | 2014-03-07 | 2016-09-21 | 中冶南方工程技术有限公司 | The control method that bag-type dusting based on pulse control instrument optimizes |
| CN105688530B (en) * | 2014-11-28 | 2017-11-28 | 上海袋式除尘配件有限公司 | A kind of more Differential pressure control methods of sack cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1618943A1 (en) * | 2004-07-20 | 2006-01-25 | Esa Electronic Engineering S.r.L. | Valve control system for dust collector units |
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