CN117919862A - Control system and method for electric control type dry dust collector based on bus control technology - Google Patents
Control system and method for electric control type dry dust collector based on bus control technology Download PDFInfo
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- CN117919862A CN117919862A CN202410143906.2A CN202410143906A CN117919862A CN 117919862 A CN117919862 A CN 117919862A CN 202410143906 A CN202410143906 A CN 202410143906A CN 117919862 A CN117919862 A CN 117919862A
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- 239000000428 dust Substances 0.000 title claims abstract description 173
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- 238000004891 communication Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 7
- 230000036541 health Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
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- 238000004140 cleaning Methods 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
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Abstract
The invention discloses an electric control type dry dust collector control system and method based on a bus control technology, which relates to the technical field of mine sanitary protection equipment, and comprises the following steps: a dry dust collector body and an electric control system; the filter cartridges are uniformly distributed and fixed on the filter cartridge frame, the ash removal air bag is connected with a plurality of ash removal pipelines, and each ash removal pipeline is arranged above the filter cartridge; a pneumatic pulse valve is arranged on the ash removal pipeline, a pneumatic electromagnetic valve is connected in parallel to a control gas circuit of the pneumatic pulse valve, and the pneumatic electromagnetic valve is connected with a solenoid valve controller; the differential pressure meter is arranged on the dust remover frame shell, and the electromagnetic valve controller is connected with the dry dust remover control box through the CAN bus. The ash removing mode of the invention is more efficient, the service life of the filter cylinder is prolonged, the automatic ash removing and linkage dust removing functions reduce the workload of coal mine workers, and the occupational health level is improved.
Description
Technical Field
The invention relates to the technical field of mine sanitary protection equipment, in particular to an electric control type dry dust collector control system and method based on a bus control technology.
Background
In the coal mine industry, dust occupational hazards are common, and the direct economic loss reaches 80 hundred million.
The dust collecting and removing technology of the coal mine dust removing device can be divided into dry dust removing and wet dust removing, the wet dust removing is realized by utilizing the technologies of atomized water collecting and removing, water filtering, cyclone dust removing and the like, and the dry dust remover adopts the filter media such as flame retardant HEPA, flame retardant filter cloth and the like to collect dust into a filter material gap, so that the effect of collecting respiratory dust is better.
The dry dust remover consists of a pleated air filter element, a pulse ash removal module, an ash discharge mechanism, a gas collection dust hood, a flexible framework air duct, a pull-out fan and the like. The dust remover is driven by the extraction type fan, air mixed with dust is sucked by the dust hood and flows into the dust chamber, the dust is filtered by the filter cartridge in the dust chamber and is adsorbed into the filter cartridge medium, and clean air is discharged by the clean air chamber. Along with the continuous dust collection of the filter cylinder, the pressure difference between the air purifying chamber and the dust chamber can be gradually increased, a worker can observe the pressure difference meter to judge whether the filter cylinder reaches the dust storage limit, the pulse ash cleaning function is realized by manually controlling the pneumatic pulse valve, and the pulse valve power source is high-pressure gas stored in the high-pressure gas bag.
However, the prior art currently has the following drawbacks:
1. the dust removing fan of the dry dust remover needs to manually control a fan starter, and the starter can only be manually started, has no linkage function and is complicated to operate;
2. when the dust removal filter cylinder is subjected to dust removal operation, factors such as the height of dust removal air pressure and the number of the dust removal valves which are opened are greatly influenced on the dust removal efficiency, and on a tunneling working face with large working strength, workers have enough time and energy to wait for the high-pressure air bag to be inflated, the dust removal efficiency can not be improved by adopting a one-way dust removal mode, and the operation flow of the correct dry dust remover is too complicated for tunneling workers tired of production.
Therefore, how to solve the problems of no linkage of the fan, complicated starting process, complex operation of the ash removing function and low manual operation efficiency is a technical problem which needs to be solved by the technicians in the field.
Disclosure of Invention
In view of the above, the invention provides a control system and a method for an electric control type dry dust collector based on a bus control technology, which solve the problems existing in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
An electronically controlled dry dust collector control system based on bus control technology, comprising: the dry type dust collector comprises a dry type dust collector body and an electric control system, wherein the dry type dust collector body comprises a dust collector frame shell, a filter cylinder, a pneumatic pulse valve, a dust removing pipeline, a differential pressure meter and a dust removing air bag, and the electric control system comprises a dry type dust collector control box, an electromagnetic valve controller and a pneumatic electromagnetic valve;
The filter cartridges are uniformly distributed and fixed on the filter cartridge frame, the ash removal air bag is connected with a plurality of ash removal pipelines, and each ash removal pipeline is arranged above the filter cartridge; a pneumatic pulse valve is arranged on the ash removal pipeline, a pneumatic electromagnetic valve is connected in parallel to a control gas circuit of the pneumatic pulse valve, and the pneumatic electromagnetic valve is connected with a solenoid valve controller;
the differential pressure meter is arranged on the dust remover frame shell, and the electromagnetic valve controller is connected with the dry dust remover control box through the CAN bus.
Optionally, the dust collector frame housing comprises: the front frame shell, the back frame shell and the top cover plate are fixed on the tops of the front frame shell and the back frame shell.
Optionally, the device also comprises a front ash-removing key board and a rear ash-removing key board; the front ash removing key board is arranged on the front frame shell, and the rear ash removing key board is arranged on the rear frame shell.
Optionally, an air inlet and an air outlet are formed in the dust remover frame shell, the air inlet is connected with a dust hood, and the air outlet is connected with a pull-out fan.
Optionally, the dry dust collector control box is connected with a fan frequency converter through a dry junction output port, and the fan frequency converter is connected with the extraction type fan.
Optionally, the dust collector also comprises a wired controller, and the wired controller is communicated with a dry dust collector control box through a 485 bus.
Optionally, the dust collector also comprises a dust sensor, a differential pressure sensor and a pressure transmitter which are all connected with the dry dust collector control box;
The dust sensor is used for detecting the dust concentration of the working environment;
the differential pressure sensor is used for detecting the differential pressure between the air inlet and the air outlet;
And the pressure transmitter is used for detecting the pressure of the ash removal gas bag.
Optionally, the dust collector also comprises an intrinsic safety power supply and a switching power supply, wherein the intrinsic safety power supply supplies power for the dust sensor, the differential pressure sensor and the pressure transmitter, and the switching power supply supplies power for the electromagnetic valve controller, the pneumatic electromagnetic valve and a control circuit in a control box of the dry dust collector.
A control method of an electric control dry dust collector based on a bus control technology comprises the following steps:
Detecting the dust concentration of a working environment by using a dust sensor, and automatically controlling the start of the extraction type fan by a dry dust collector control box when the dust concentration reaches the start threshold of the extraction type fan, so as to realize a dust linkage dust removal function;
detecting the pressure difference between the air inlet and the air outlet by using a pressure difference sensor, and when the pressure difference is increased to a threshold value for automatic ash removal, sequentially controlling each electromagnetic valve controller by the dry dust collector control box through a CAN bus; the electromagnetic valve controller sequentially starts the controlled pneumatic electromagnetic valve and drives the pneumatic pulse valve to carry out ash removal operation;
The ash removing operation detects the pressure of an ash removing air bag through a pressure transmitter, determines the air charging time according to the pressure of the ash removing air bag after starting one pneumatic electromagnetic valve each time, and starts the next pneumatic electromagnetic valve when the air pressure reaches a set ash removing air pressure value until the automatic ash removing is completed;
And judging the states of the pneumatic pulse valve and the coil based on the pressure change of the ash removal air bag, and if the pressure of the ash removal air bag does not change obviously after the system sends out a pneumatic electromagnetic valve starting signal, considering that the ash removal system fails.
Compared with the prior art, the electric control type dry dust collector control system and method based on the bus control technology can adopt a more efficient ash removal mode to remove ash, prolong the service life of a filter cylinder, reduce the workload of coal mine workers due to an automatic ash removal function and a linkage function, enable the dry dust collector to be started faster due to the linkage dust removal function, reduce the exposure time of the coal mine workers to dust and improve the occupational health level.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of an electronically controlled dry-type dust collector control system based on bus control technology provided by the invention;
FIG. 2 is a schematic diagram of the operation of the present invention;
Reference numerals: the device comprises a control box of a 1-dry dust collector, a 2-air outlet, a 3-pressure regulating filter, a 4-differential pressure meter, a 5-back ash removal key board, a 6-back frame shell, a 7-side cover plate, an 8-front frame shell, a 9-front ash removal key board, a 10-air inlet, an 11-ash removal air bag, a 12-top cover plate, a 13-filter cylinder frame, a 14-pneumatic pulse valve, a 15-filter cylinder, a 16-electromagnetic valve controller, a 17-ash removal pipeline and an 18-pneumatic electromagnetic valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses an electric control type dry dust collector control system based on a bus control technology, as shown in fig. 1 (the upper part is a front view, the lower part is a top view), comprising: the dry type dust collector comprises a dry type dust collector body and an electric control system, wherein the dry type dust collector body comprises a dust collector frame shell, a filter cylinder 15, a pneumatic pulse valve 14, a dust removing pipeline 17, a differential pressure meter 4 and a dust removing air bag 11, and the electric control system comprises a dry type dust collector control box 1, a solenoid valve controller 16 and a pneumatic solenoid valve 18;
The filter cartridges 15 are uniformly distributed and fixed on the filter cartridge frame 13, the ash removal air bag 11 is connected with a plurality of ash removal pipelines 17, and each ash removal pipeline 17 is arranged above the filter cartridge 15; the ash removal pipeline 17 is provided with a pneumatic pulse valve 14, a pneumatic electromagnetic valve 18 is connected in parallel to a control air path of the pneumatic pulse valve 14, and the pneumatic electromagnetic valve 18 is connected with an electromagnetic valve controller 16;
The differential pressure meter 4 is arranged on the dust remover frame shell, and the electromagnetic valve controller 16 is connected with the dry dust remover control box 1 through a CAN bus. The control air path of the pneumatic pulse valve 14 is connected with one pneumatic electromagnetic valve 18 in parallel, the pneumatic electromagnetic valve 18 is driven by an explosion-proof coil, the electric control function of the pneumatic pulse valve 14 is realized, the electromagnetic valve controller 16 CAN drive 8 pneumatic electromagnetic valves 18, and the electromagnetic valve controller 16 is communicated with the dry dust collector control box 1 through a CAN bus.
The explosion-proof pneumatic electromagnetic valve 18 connected in parallel is added, so that the original mechanical and manual ash removing function can be reserved while the electric control ash removing is realized; the electromagnetic valve controller 16 is connected with the explosion-proof dry dust collector control box 1 through the CAN bus, so that products CAN be conveniently expanded to dust collectors with different specifications, and the communication stability is high.
Further, the dust collector frame housing includes: a front frame housing 8, a rear frame housing 6, and a top cover 12, the top cover 12 being fixed on top of the front frame housing 8 and the rear frame housing 6. Further, a side cover 7 is also included, the side cover 7 being provided on the rear frame housing 6.
Further, the device also comprises a front ash-removing key board 9 and a rear ash-removing key board 5; the front ash removing key board 9 is installed on the front frame housing 8, and the rear ash removing key board 5 is installed on the rear frame housing 6.
Further, an air inlet 10 and an air outlet 2 are formed in the dust remover frame shell, the air inlet 10 is connected with a dust hood, and the air outlet 2 is connected with a pull-out fan. In addition, a pressure regulating filter 3 is arranged at a position close to the air outlet 2 and is connected with the dry dust collector control box 1.
Further, the dry dust collector control box 1 is connected with a fan frequency converter through a dry node output port, and the fan frequency converter is connected with a pull-out fan. In addition, the control box 1 of the dry dust collector is reserved with a network port and a standby 485 communication port, and can be connected into a mining industrial ring network to realize equipment networking.
Further, the dust collector control box also comprises a wired controller, and the wired controller is communicated with the dry dust collector control box 1 through a 485 bus. The wired controller is intrinsic safety type protection, four buttons and an LED display screen are arranged on a panel, and the four buttons and the LED display screen are used for realizing man-machine interaction functions related to the dry dust collector control box 1, such as controlling start and stop of the extraction type fan and controlling pneumatic ash cleaning flow.
Further, referring to fig. 2, the dust collector further comprises a dust sensor, a differential pressure sensor and a pressure transmitter, which are all connected with the dry dust collector control box 1;
The dust sensor is used for detecting the dust concentration of the working environment;
the differential pressure sensor is used for detecting the differential pressure between the air inlet 10 and the air outlet 2;
and the pressure transmitter is used for detecting the pressure of the ash removal gas bag 11.
Still further, include this ampere of power and switching power supply, this ampere of power supply is dust sensor, pressure difference sensor and pressure transmitter power supply, and switching power supply is solenoid valve controller 16, pneumatic solenoid valve 18 and the control circuit in the dry dust remover control box 1.
In addition, the number of solenoid valve controllers 16 is determined according to the type of dry dust collector, and in this embodiment, in the case of a dry dust collector having a 32-way pulse valve, 4 solenoid valve controllers 16 are required to be provided.
The embodiment also discloses a control method of the electric control type dry dust collector based on the bus control technology, which comprises the following steps:
the dust concentration of the working environment is detected by utilizing a dust sensor, and when the dust concentration reaches the starting threshold value of the extraction type fan, the dry type dust remover control box 1 automatically controls the starting of the extraction type fan, so that the dust linkage dust removing function is realized;
Detecting the pressure difference between the air inlet 10 and the air outlet 2 by using a pressure difference sensor, and when the pressure difference is increased to a threshold value for automatic ash removal, sequentially controlling each electromagnetic valve controller 16 by the dry dust collector control box 1 through a CAN bus; the electromagnetic valve controller 16 sequentially starts the controlled pneumatic electromagnetic valve 18 and drives the pneumatic pulse valve 14 to carry out ash removal operation;
The ash removal operation detects the pressure of the ash removal air bag 11 through a pressure transmitter, after each time one pneumatic electromagnetic valve 18 is started, the air charging time is determined according to the pressure of the ash removal air bag 11, and when the air pressure reaches a set ash removal air pressure value, the next pneumatic electromagnetic valve 18 is started again until the automatic ash removal is completed;
And judging the states of the pneumatic pulse valve and the coil based on the pressure change of the ash removal air bag, and if the pressure of the ash removal air bag does not change obviously after the system sends out a pneumatic electromagnetic valve starting signal, considering that the ash removal system fails.
Based on the design scheme of the application, the following functions can be realized:
(1) Dust removal function: the fan can be started and stopped by remote control to control the dust removing function.
(2) Equipment linkage dust removal function: the explosion-proof dry dust collector control box 1 can be connected into an industrial control network, and is controlled by upper computer software, so that the linkage of the software-controlled dust collector and other equipment can be realized; the signal of the dry junction point of the linkage equipment can be connected into the control box 1 of the flameproof dry dust collector to realize the linkage function with the equipment; when the linkage equipment is started, the extraction type fan randomly acts.
(3) Dust linkage dust removal function: the explosion-proof dry dust collector control box 1 can be connected with a dust sensor, and when the dust sensor detects that the dust concentration of the working environment reaches the starting threshold value of the fan, the explosion-proof dry dust collector control box 1 can automatically control the start of the extraction type fan, so that the dust linkage dust collection function is realized.
(4) Automatic ash removal function: after the automatic ash removal process is started, the explosion-proof dry dust collector control box 1 sequentially controls each electromagnetic valve controller 16 through the CAN bus, after the electromagnetic valve controllers 16 receive ash removal signals, sequentially starts the controlled explosion-proof pneumatic electromagnetic valves 18, and further drives the pneumatic pulse valves 14 to carry out ash removal operation, the operation CAN automatically start all the pneumatic pulse valves 14 once in turn, if the operation is interrupted in the middle, the address of the last explosion-proof pneumatic electromagnetic valve 18 to be started is recorded, and the rest valves are started sequentially next time. The automatic ash removal function can detect the air pressure of the ash removal air bag 11, and after each time of starting one path of explosion-proof type pneumatic electromagnetic valve 18, the air charging time is determined according to the air pressure of the ash removal air bag 11, and when the air pressure reaches a set ash removal air pressure value, the next path of explosion-proof type pneumatic electromagnetic valve 18 is started again.
(5) Accumulated dust removal time is automatically removed: after the blower is operated for a certain time, a round of automatic ash removal process is automatically started, and all explosion-proof pneumatic electromagnetic valves 18 are started in turn. The accumulated running time defaults to 10 minutes, the whole machine is cleared after ash removal, and the using unit can adjust the timing time according to the field environment and experience.
(6) Automatic ash removal when the fan is stopped: judging whether to carry out automatic ash removal according to the accumulated running time after the fan is stopped, and carrying out automatic ash removal of the whole machine once if the accumulated running time is greater than half of the set time during stopping.
(7) Differential pressure automatic ash removal: after the fan is operated for a period of time in an accumulated mode, dust trapped in the filter cylinder 15 can block the filter cylinder 15, at the moment, the pressure difference between the air outlet 2 and the air inlet 10 can be increased, and when the pressure difference is increased to a threshold value for automatic ash removal, the automatic ash removal of the whole machine is carried out once.
(8) Manual ash removal: the single valve can be manually controlled to be opened and closed, and the function is used when one-way ash removal or debugging and maintenance are required.
(9) Abnormal state: when the wired controller is disconnected, the extraction type fan can be started and stopped manually by the fan frequency converter, and the dust removing function is normally used; the automatic ash removal function is automatically adjusted to an open state when the fan is stopped, and ash removal is performed according to action logic; the timing and ash removing function is automatically adjusted to an open state, and the timing time is set to a time value before the remote controller is disconnected.
The functions (1) - (8) can be controlled by a wired controller to carry out switch control and parameter adjustment.
Compared with the prior art, the embodiment adds the electric control system and outputs the dry node signal to the fan frequency converter, so that the functions of automatic starting, common starting with linkage equipment, remote control starting and the like of the fan according to the dust concentration can be realized, the problems of no linkage of the fan and complicated starting flow are solved, and the dust removal efficiency is improved; an electric control function is added for the pulse valve, automatic ash removal logic is written, and one-key automatic ash removal of the whole machine is realized; different ash removing functions are set, and production personnel do not need to operate the dry dust collector after ash removing parameters are set, so that the problems of complex operation of the ash removing functions and low manual operation efficiency are solved, and the frequency of manual intervention is reduced; the pulse valve electric control module is connected with the original equipment by the pneumatic control module in parallel, and once the electric control module is damaged, a worker can still control the pulse valve by using the pneumatic control module, so that the reliability of the system is improved.
Along with the increasing importance of occupational safety and health of coal workers, a large number of dry dust collectors are applied to the treatment of the flour dust of tunneling work, and the application and wide popularization of the electric control dry dust collectors can further improve the dust treatment efficiency of the coal mine.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the method disclosed in the embodiment, since it corresponds to the system disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An electronic control type dry dust collector control system based on a bus control technology is characterized by comprising: the dry type dust collector comprises a dry type dust collector body and an electric control system, wherein the dry type dust collector body comprises a dust collector frame shell, a filter cylinder, a pneumatic pulse valve, a dust removing pipeline, a differential pressure meter and a dust removing air bag, and the electric control system comprises a dry type dust collector control box, an electromagnetic valve controller and a pneumatic electromagnetic valve;
The filter cartridges are uniformly distributed and fixed on the filter cartridge frame, the ash removal air bag is connected with a plurality of ash removal pipelines, and each ash removal pipeline is arranged above the filter cartridge; a pneumatic pulse valve is arranged on the ash removal pipeline, a pneumatic electromagnetic valve is connected in parallel to a control gas circuit of the pneumatic pulse valve, and the pneumatic electromagnetic valve is connected with a solenoid valve controller;
the differential pressure meter is arranged on the dust remover frame shell, and the electromagnetic valve controller is connected with the dry dust remover control box through the CAN bus.
2. The bus control technology-based control system for an electronically controlled dry cleaner of claim 1, wherein the cleaner frame housing comprises: the front frame shell, the back frame shell and the top cover plate are fixed on the tops of the front frame shell and the back frame shell.
3. The control system of the electric control type dry dust collector based on the bus control technology as set forth in claim 2, further comprising a front ash removing key board and a rear ash removing key board; the front ash removing key board is arranged on the front frame shell, and the rear ash removing key board is arranged on the rear frame shell.
4. The control system of an electrically controlled dry dust collector based on a bus control technology as set forth in claim 1, wherein the dust collector frame housing is provided with an air inlet and an air outlet, the air inlet is connected with a dust hood, and the air outlet is connected with a draw-out fan.
5. The bus control technology-based control system for an electronically controlled dry cleaner of claim 4, wherein the dry cleaner control box is connected to a fan frequency converter via a dry junction output port, the fan frequency converter being connected to a pull-out fan.
6. The control system of an electronically controlled dry cleaner based on a bus control technique of claim 1, further comprising a wired controller in communication with the dry cleaner control box via a 485 bus.
7. The control system of the electric control type dry dust collector based on the bus control technology as set forth in claim 1, further comprising a dust sensor, a differential pressure sensor and a pressure transmitter, all connected with the dry dust collector control box;
The dust sensor is used for detecting the dust concentration of the working environment;
the differential pressure sensor is used for detecting the differential pressure between the air inlet and the air outlet;
And the pressure transmitter is used for detecting the pressure of the ash removal gas bag.
8. The bus control technology-based control system of an electronically controlled dry dust collector of claim 7, further comprising an intrinsic safety power supply and a switching power supply, wherein the intrinsic safety power supply supplies power to the dust sensor, the differential pressure sensor and the pressure transmitter, and the switching power supply supplies power to the solenoid valve controller, the pneumatic solenoid valve and the control circuit in the dry dust collector control box.
9. The control method of the electric control type dry dust collector based on the bus control technology is characterized by comprising the following steps of:
Detecting the dust concentration of a working environment by using a dust sensor, and automatically controlling the start of the extraction type fan by a dry dust collector control box when the dust concentration reaches the start threshold of the extraction type fan, so as to realize a dust linkage dust removal function;
detecting the pressure difference between the air inlet and the air outlet by using a pressure difference sensor, and when the pressure difference is increased to a threshold value for automatic ash removal, sequentially controlling each electromagnetic valve controller by the dry dust collector control box through a CAN bus; the electromagnetic valve controller sequentially starts the controlled pneumatic electromagnetic valve and drives the pneumatic pulse valve to carry out ash removal operation;
The ash removing operation detects the pressure of an ash removing air bag through a pressure transmitter, determines the air charging time according to the pressure of the ash removing air bag after starting one pneumatic electromagnetic valve each time, and starts the next pneumatic electromagnetic valve when the air pressure reaches a set ash removing air pressure value until the automatic ash removing is completed;
And judging the states of the pneumatic pulse valve and the coil based on the pressure change of the ash removal air bag, and if the pressure of the ash removal air bag does not change obviously after the system sends out a pneumatic electromagnetic valve starting signal, considering that the ash removal system fails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410143906.2A CN117919862A (en) | 2024-02-01 | 2024-02-01 | Control system and method for electric control type dry dust collector based on bus control technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410143906.2A CN117919862A (en) | 2024-02-01 | 2024-02-01 | Control system and method for electric control type dry dust collector based on bus control technology |
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| CN117919862A true CN117919862A (en) | 2024-04-26 |
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| CN202410143906.2A Pending CN117919862A (en) | 2024-02-01 | 2024-02-01 | Control system and method for electric control type dry dust collector based on bus control technology |
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| CN (1) | CN117919862A (en) |
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2024
- 2024-02-01 CN CN202410143906.2A patent/CN117919862A/en active Pending
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